A cloth winding mechanism abnormality alarm circuit and a circular knitting machine cloth winding mechanism

Abstract

The utility model provides a kind of cloth winding mechanism abnormal alarm circuit, it is used for cloth winding mechanism, comprising: detection unit, wireless transmitting unit and wireless receiving unit, detection unit is used to detect whether cloth winding mechanism is abnormal, detection unit is connected with wireless transmitting unit and according to its detection result control whether wireless transmitting unit emits abnormal signal or whether normal signal is emitted;Wireless communication connection between wireless receiving unit and wireless transmitting unit, and whether wireless receiving unit is triggered according to the signal condition received cloth winding mechanism abnormal processing controls, the cloth winding mechanism abnormal alarm circuit of the utility model, it can be detected when cloth winding mechanism is abnormal, stably, reliably trigger abnormal processing.The utility model further provides a large round machine cloth winding mechanism.

Description

Technical Field

[0001] This utility model relates to the field of fabric rolling mechanisms, and in particular to an abnormal alarm circuit for a fabric rolling mechanism and a fabric rolling mechanism for a large circular knitting machine. Background Technology

[0002] During the production process of the large circular knitting machine, the large disc drives the fabric winding machine to rotate, and when the fabric winding machine rotates, it drives the rubber roller to rotate through gears and chains.

[0003] During the operation of a fabric rolling machine, issues such as reversed fabric rolls, fabric drops, and abnormal fabric cutting blades may occur. If these issues are not detected and addressed in a timely manner, they can easily damage the fabric rolling machine and waste fabric. In severe cases, they can even damage the machine's needles, cylinders, and cams.

[0004] Currently, fault alarms on fabric winding machines on the market are all based on rotating slip rings. Because rotating slip rings are prone to damage, a malfunction in the rotating slip ring will prevent the fault alarm signal from being transmitted. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides an alarm circuit for a fabric winding mechanism malfunction, which can reliably trigger malfunction handling when an abnormality is detected in the fabric winding mechanism. This utility model also provides a fabric winding mechanism for a large circular knitting machine.

[0006] To achieve the above objectives, the present invention employs the following technical solution: An alarm circuit for a fabric rolling mechanism is provided. The circuit includes a detection unit, a wireless transmitting unit, and a wireless receiving unit. The detection unit is used to detect whether an abnormality has occurred in the fabric rolling mechanism. The detection unit is connected to the wireless transmitting unit and controls the wireless transmitting unit to transmit an abnormal signal or a normal signal based on its detection result. The wireless receiving unit and the wireless transmitting unit are wirelessly connected, and the wireless receiving unit controls whether to trigger the abnormal handling of the fabric rolling mechanism according to the received signal. Specifically, if the wireless receiving unit does not receive an abnormal signal sent by the wireless transmitting unit or receives a normal signal sent by the wireless transmitting unit, the wireless receiving unit will not trigger the abnormal handling of the fabric rolling mechanism; if the wireless receiving unit receives an abnormal signal sent by the wireless transmitting unit or does not receive a normal signal sent by the wireless transmitting unit, the wireless receiving unit will trigger the abnormal handling of the fabric rolling mechanism.

[0007] Using the above technical solution, when the detection unit does not detect any abnormality in the fabric rolling mechanism, the detection unit controls the wireless transmitting unit not to transmit an abnormal signal to the wireless receiving unit or to transmit a normal signal to the wireless receiving unit; if the wireless receiving unit does not receive an abnormal signal sent by the wireless transmitting unit or receives a normal signal sent by the wireless transmitting unit, the wireless receiving unit does not trigger abnormal processing of the fabric rolling mechanism, and the fabric rolling mechanism operates normally. When the detection unit detects an abnormality in the fabric rolling mechanism, the detection unit controls the wireless transmitting unit to transmit an abnormal signal to the wireless receiving unit or not to transmit a normal signal to the wireless receiving unit; if the wireless receiving unit receives the abnormal signal sent by the wireless transmitting unit or does not receive the normal signal sent by the wireless transmitting unit, the wireless receiving unit triggers abnormal handling of the fabric rolling mechanism and performs abnormal handling, such as a shutdown operation. Furthermore, in the above technical solution, the wireless transmitting unit and the wireless receiving unit communicate wirelessly. Therefore, there are no wire restrictions between the two when installing and deploying the wireless transmitting unit and the wireless receiving unit, making the installation and deployment of the wireless transmitting unit and the wireless receiving unit more convenient and flexible, and making the output of abnormal or normal signals more stable and reliable.

[0008] Furthermore, the detection unit includes at least one of the following: a fabric rewinding detection unit for detecting whether the fabric winding mechanism has an abnormality in rewinding; a fabric dropping detection unit for detecting whether the fabric winding mechanism has an abnormality in dropping fabric; and a fabric cutting knife abnormality detection unit for detecting whether the fabric cutting knife in the fabric winding mechanism is abnormal.

[0009] By adopting the above technical solution, the detection unit becomes more reasonable; When the aforementioned reverse-rolling fabric detection unit is provided, the reverse-rolling fabric detection unit can detect whether the fabric rolling mechanism is reversing. When the reverse-rolling fabric detection unit detects that the fabric rolling mechanism is reversing, it means that the fabric rolling mechanism has detected an abnormality. When the fabric dropping detection unit is provided, the fabric dropping detection unit can detect whether the fabric rolling mechanism has dropped fabric. When the fabric dropping detection unit detects that the fabric rolling mechanism has dropped fabric, it means that the fabric rolling mechanism has detected an abnormality. When the fabric cutting knife abnormality detection unit is provided, the fabric cutting knife abnormality detection unit can detect whether the fabric cutting knife in the fabric rolling mechanism is abnormal. When the fabric cutting knife abnormality detection unit detects that the fabric cutting knife in the fabric rolling mechanism is abnormal, it means that the fabric rolling mechanism is abnormal. Specifically, the number of wireless transmitting units is matched with the number of detection units. It can be a one-to-one correspondence, or several detection units can correspond to one wireless transmitting unit, or all detection units can correspond to one wireless transmitting unit. The number of wireless receiving units is matched with the number of wireless transmitting units. They can be in a one-to-one correspondence, or several wireless transmitting units can correspond to one wireless receiving unit, or all of the wireless transmitting units can correspond to one wireless receiving unit.

[0010] Furthermore, the fabric rolling mechanism abnormal alarm circuit includes a first power supply unit for powering the wireless transmitting unit and a second power supply unit for powering the detection unit.

[0011] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism is made more reasonable. The first power supply unit provides operating power to the wireless transmission unit, and the second power supply unit provides operating power to the detection unit.

[0012] Furthermore, the first power supply unit uses a battery or a switching power supply; The second power supply unit uses a battery or a switching power supply.

[0013] By adopting the above technical solution, the first power supply unit and the second power supply unit become more reasonable; When the first power supply unit uses a switching power supply, it can ensure that the first power supply unit can continuously supply power to the wireless transmitting unit without worrying about the power level of the first power supply unit. When the second power supply unit uses a switching power supply, it can ensure that the second power supply unit can continuously supply power to the detection unit without worrying about the power level of the second power supply unit. Since the fabric winding mechanism malfunction alarm circuit is used in the fabric winding mechanism, which is a rotating structure, when using a switching power supply, it needs to be connected to the large circular knitting machine power supply via an electric slip ring. However, the electric slip ring may experience poor contact during long-term operation, which can lead to unreliable power supply. When the first power unit uses a battery, it does not need to go through an electric slip ring, ensuring the reliability of power supply to the wireless transmitting unit. Similarly, when the second power unit uses a battery, it does not need to go through an electric slip ring, ensuring the reliability of power supply to the detection unit.

[0014] It should be noted that the naming conventions of the first and second structures in this article are merely for ease of description and should not be used to conclude that the first and second structures refer to two independent structures. They can refer to two independent structures or the same structure.

[0015] Furthermore, the first power supply unit and the second power supply unit are configured to use the same power supply or to use different power supplies.

[0016] By adopting the above technical solution, the first power supply unit and the second power supply unit become more reasonable; The configuration of the first power supply unit and the second power supply unit as the same power supply can be understood as: the first power supply unit and the second power supply unit are the same power supply, that is, the first power supply unit is the second power supply unit and the second power supply unit is the first power supply unit; The configuration of the first power supply unit and the second power supply unit as different power supplies can be understood as the first power supply unit and the second power supply unit being two independent power supplies.

[0017] Furthermore, in some embodiments, when the wireless transmitting unit is in a power-off state, the wireless transmitting unit does not transmit abnormal signals to the wireless receiving unit; when the wireless transmitting unit is in a power-on state, the wireless transmitting unit transmits abnormal signals to the wireless receiving unit. Alternatively, if the wireless transmitting unit is in a power-off state, the wireless transmitting unit will not transmit normal signals to the wireless receiving unit; if the wireless transmitting unit is in a power-on state, the wireless transmitting unit will transmit normal signals to the wireless receiving unit. The detection unit is used to control the wireless transmitting unit to be in a power-off state or a power-on state.

[0018] By adopting the above technical solution, the wireless transmitting unit and the detection unit become more reasonable; When the signal transmitted by the wireless transmitting unit is an abnormal signal, the wireless transmitting unit will not transmit the abnormal signal to the wireless receiving unit when the detection unit controls the wireless transmitting unit to be in a power-off state; when the detection unit controls the wireless transmitting unit to be in a power-on state, the wireless transmitting unit will transmit the abnormal signal to the wireless receiving unit. When the signal transmitted by the wireless transmitting unit is a normal signal, and the detection unit controls the wireless transmitting unit to be in a power-off state, the wireless transmitting unit will not transmit a normal signal to the wireless receiving unit; when the detection unit controls the wireless transmitting unit to be in a power-on state, the wireless transmitting unit will transmit a normal signal to the wireless receiving unit.

[0019] Furthermore, the detection unit has a signal output terminal; the detection unit can directly control the wireless transmitting unit to be in a power-off state or a power-on state through its own signal output terminal, or the detection unit can control the wireless transmitting unit to be in a power-off state or a power-on state through an auxiliary relay.

[0020] By adopting the above technical solution, it is more reasonable for the detection unit to control the wireless transmitting unit to be in a power-off state or a power-on state.

[0021] Furthermore, when the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-low level to a low level; the detection unit directly controls the wireless transmission unit to be in a power-off state or a power-on state through its own signal output terminal; when the wireless transmission unit is used to determine whether to transmit an abnormal signal, the positive terminal of the wireless transmission unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmission unit is connected to the signal output terminal of the detection unit; the first power supply unit and the second power supply unit are configured to use the same power supply. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-low level to a low level. The detection unit controls the wireless transmitting unit to be in a power-off state or a power-on state through an auxiliary relay. When the wireless transmitting unit is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit. The positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the negative terminal of the first power supply unit. The normally open switch of the auxiliary relay is connected in series between the positive terminal of the wireless transmitting unit and the positive terminal of the first power supply unit and / or in series between the negative terminal of the wireless transmitting unit and the negative terminal of the first power supply unit. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-high level to a high level. The detection unit directly controls the wireless transmission unit to be in a power-off state or a power-on state through its own signal output terminal. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, the negative terminal of the wireless transmission unit is connected to the negative terminal of the first power supply unit, and the positive terminal of the wireless transmission unit is connected to the signal output terminal of the detection unit. The first power supply unit and the second power supply unit are configured to use the same power supply. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-high level to a high level. The detection unit controls the wireless transmitting unit to be in a power-off state or a power-on state through an auxiliary relay. When the wireless transmitting unit is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit. The positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the negative terminal of the first power supply unit. The normally open switch of the auxiliary relay is connected in series between the positive terminal of the wireless transmitting unit and the positive terminal of the first power supply unit and / or in series between the negative terminal of the wireless transmitting unit and the negative terminal of the first power supply unit. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from low level to non-low level. The detection unit controls the wireless transmitting unit to be in a power-off state or a power-on state through an auxiliary relay. When the wireless transmitting unit is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit. The positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the negative terminal of the first power supply unit. The normally closed switch of the auxiliary relay is connected in series between the positive terminal of the wireless transmitting unit and the positive terminal of the first power supply unit and / or in series between the negative terminal of the wireless transmitting unit and the negative terminal of the first power supply unit. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from high level to non-high level. The detection unit controls the wireless transmitting unit to be in a power-off or power-on state via an auxiliary relay. When the wireless transmitting unit is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit. The positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the negative terminal of the first power supply unit. The normally closed switch of the auxiliary relay is connected in series between the positive terminal of the wireless transmitting unit and the positive terminal of the first power supply unit and / or in series between the negative terminal of the wireless transmitting unit and the negative terminal of the first power supply unit.

[0022] In this article, a switch on a relay can be understood as: a common terminal on the relay, a normally open or normally closed contact, and related mechanical parts; a normally open switch on a relay can be understood as: a common terminal on the relay, a normally open contact, and related mechanical parts; a normally closed switch on a relay can be understood as: a common terminal on the relay, a normally closed contact, and related mechanical parts. This explanation is for ease of understanding and is not intended to be restrictive. By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism becomes more reasonable; When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-low level to a low level. The detection unit directly controls the wireless transmitting unit to be in a power-off or power-on state through its own signal output. When the detection unit does not detect an abnormality, although the positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, the negative terminal of the wireless transmitting unit is connected to the signal output of the detection unit at a non-low level, i.e., a high impedance or high level. The wireless transmitting unit is in a power-off state and does not transmit an abnormal signal. When the detection unit detects an abnormality, the positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the signal output of the detection unit at a low level. The wireless transmitting unit is in a power-on state and transmits an abnormal signal. The first power supply unit and the second power supply unit are configured with the same power supply, making the structure more reasonable and facilitating the implementation of a loop. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-low level to a low level. The detection unit controls the wireless transmitting unit to be in a power-off or power-on state via an auxiliary relay. The wireless transmitter is used to determine whether to transmit an abnormal signal. In the case where the detection unit does not detect an abnormality, although one end of the auxiliary relay coil is connected to the positive terminal of the second power supply unit, the other end of the auxiliary relay coil is connected to the signal output terminal of the detection unit at a non-low level (i.e., a high-impedance state or a high level). The auxiliary relay coil is de-energized, the normally open switch of the auxiliary relay is open, and the wireless transmitting unit cannot communicate with the first power supply unit. When a circuit is established between the units, the wireless transmitting unit is in a de-energized state and does not transmit abnormal signals. When the detection unit detects an abnormality, one end of the coil of the auxiliary relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit at a low level. The coil of the auxiliary relay is energized, and the normally open switch of the auxiliary relay is closed. The wireless transmitting unit establishes a circuit with the first power supply unit, and the wireless transmitting unit is in a powered state. The wireless transmitting unit transmits abnormal signals. The first power supply unit and the second power supply unit can be configured to use the same power supply or different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-high level to a high level. The detection unit directly controls the wireless transmitter to be in a power-off or power-on state through its own signal output. When the wireless transmitter is used to determine whether to transmit an abnormal signal, if the detection unit does not detect an abnormality, although the negative terminal of the wireless transmitter is connected to the negative terminal of the first power supply unit, the positive terminal of the wireless transmitter is connected to the signal output of the detection unit at a non-high level (i.e., high impedance or low level), and the wireless transmitter is in a power-off state and does not transmit an abnormal signal. If the detection unit detects an abnormality, the negative terminal of the wireless transmitter is connected to the negative terminal of the first power supply unit, and the positive terminal of the wireless transmitter is connected to the signal output of the detection unit at a high level, and the wireless transmitter is in a power-on state and transmits an abnormal signal. The first power supply unit and the second power supply unit are configured with the same power supply, making the structure more reasonable and facilitating the implementation of a loop. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-high level to a high level. The detection unit controls the wireless transmitting unit to be in a power-off or power-on state via an auxiliary relay. The wireless transmitter is used to determine whether to transmit an abnormal signal. In the case where the detection unit does not detect an abnormality, although one end of the auxiliary relay coil is connected to the negative terminal of the second power supply unit, the other end of the auxiliary relay coil is connected to the signal output terminal of the detection unit at a non-high level (i.e., a high-impedance state or a low level). The auxiliary relay coil is de-energized, the normally open switch of the auxiliary relay is open, and the wireless transmitting unit cannot communicate with the first power supply unit. When a circuit is established between the units, the wireless transmitting unit is in a de-energized state and does not transmit any abnormal signals. When the detection unit detects an abnormality, one end of the coil of the auxiliary relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit at a high level. The coil of the auxiliary relay is energized, and the normally open switch of the auxiliary relay is closed. The wireless transmitting unit establishes a circuit with the first power supply unit, and the wireless transmitting unit is in a powered state. The wireless transmitting unit transmits abnormal signals. The first power supply unit and the second power supply unit can be configured to use the same power supply or different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from low to non-low level. The detection unit controls the wireless transmitting unit to be in a power-off or power-on state via an auxiliary relay. The wireless transmitting unit is used to determine whether to transmit an abnormal signal. If the detection unit does not detect an abnormality, one end of the auxiliary relay coil is connected to the positive terminal of the second power supply unit, and the other end of the auxiliary relay coil is connected to the signal output terminal of the detection unit at a low level. The auxiliary relay coil is energized, and its normally closed switch opens. The wireless transmitting unit cannot establish a circuit with the first power supply unit. When the unit is in a power-off state, the wireless transmitting unit does not transmit abnormal signals. When the detection unit detects an abnormal state, one end of the coil of the auxiliary relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit in a non-low level state, i.e., a high impedance state or a high level state. The coil of the auxiliary relay is de-energized, the normally closed switch of the auxiliary relay is closed, the wireless transmitting unit establishes a circuit with the first power supply unit, the wireless transmitting unit is powered, and the wireless transmitting unit transmits abnormal signals. The first power supply unit and the second power supply unit can be configured with the same power supply or with different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from high to non-high level. The detection unit controls the wireless transmitting unit to be in a power-off or power-on state via an auxiliary relay. The wireless transmitting unit is used to determine whether to transmit an abnormal signal. If the detection unit does not detect an abnormality, one end of the auxiliary relay coil is connected to the negative terminal of the second power supply unit, and the other end of the auxiliary relay coil is connected to the signal output terminal of the detection unit at a high level. The auxiliary relay coil is energized, and its normally closed switch opens. The wireless transmitting unit cannot establish a circuit with the first power supply unit. When the unit is in a power-off state, the wireless transmitting unit does not transmit abnormal signals. When the detection unit detects an abnormal state, one end of the coil of the auxiliary relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the auxiliary relay is connected to the signal output terminal of the detection unit in a non-high level state, i.e., a high impedance state or a low level state. The coil of the auxiliary relay is de-energized, the normally closed switch of the auxiliary relay is closed, the wireless transmitting unit establishes a circuit with the first power supply unit, the wireless transmitting unit is powered, and the wireless transmitting unit transmits abnormal signals. The first power supply unit and the second power supply unit can be configured to use the same power supply or to use different power supplies. Of course, if the wireless transmitter is used to determine whether to transmit a normal signal, only adaptive modifications are needed. For example, in the above technical solution, the normally closed switch of the auxiliary relay can be connected in series between the positive terminal of the wireless transmitting unit and the positive terminal of the first power supply unit and / or in series between the negative terminal of the wireless transmitting unit and the negative terminal of the first power supply unit.

[0023] Furthermore, in some embodiments, the wireless transmitting unit has a first switching terminal and a second switching terminal; When the first and second switches of the wireless transmitting unit are not connected, the wireless transmitting unit does not transmit abnormal signals to the wireless receiving unit; when the first and second switches of the wireless transmitting unit are connected, the wireless transmitting unit transmits abnormal signals to the wireless receiving unit. Alternatively, if the first and second switches of the wireless transmitting unit are not connected, the wireless transmitting unit transmits a normal signal to the wireless receiving unit; if the first and second switches of the wireless transmitting unit are connected, the wireless transmitting unit does not transmit a normal signal to the wireless receiving unit. The detection unit is used to control the connection and disconnection between the first and second switching terminals of the wireless transmitting unit.

[0024] By adopting the above technical solution, the wireless transmitting unit and the detection unit become more reasonable; When the signal transmitted by the wireless transmitting unit is an abnormal signal, if the detection unit controls the first switch terminal and the second switch terminal in the wireless transmitting unit to be disconnected, the wireless transmitter will not transmit the abnormal signal to the wireless receiving unit; if the detection unit controls the first switch terminal and the second switch terminal in the wireless transmitting unit to be connected, the wireless transmitter will transmit the abnormal signal to the wireless receiving unit. When the signal transmitted by the wireless transmitting unit is a normal signal, if the detection unit controls the first switch terminal and the second switch terminal in the wireless transmitting unit to be disconnected, the wireless transmitter will not transmit a normal signal to the wireless receiving unit; if the detection unit controls the first switch terminal and the second switch terminal in the wireless transmitting unit to be connected, the wireless transmitter will transmit a normal signal to the wireless receiving unit.

[0025] Furthermore, the detection unit has a signal output terminal; the detection unit controls the connection and disconnection between the first and second switching terminals of the wireless transmitting unit through a switch relay.

[0026] By adopting the above technical solution, the detection unit can more reasonably control the on / off state between the first switch terminal and the second switch terminal.

[0027] Furthermore, the positive terminal of the wireless transmitting unit is connected to the positive terminal of the first power supply unit, and the negative terminal of the wireless transmitting unit is connected to the negative terminal of the first power supply unit. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-low level to a low level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit. The first and second switch terminals of the wireless transmission unit are connected through the normally open switch of the switch relay. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from a non-high level to a high level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit. The first and second switch terminals of the wireless transmission unit are connected through the normally open switch of the switch relay. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from low level to non-low level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit. The first and second switch terminals of the wireless transmission unit are connected through the normally closed switch of the switch relay. When the detection unit detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal changes from high level to non-high level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit. The first and second switching terminals of the wireless transmission unit are connected through the normally closed switch of the switch relay.

[0028] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism becomes more reasonable; When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-low level to a low level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, and the detection unit does not detect an abnormality, although one end of the coil of the on / off relay is connected to the positive terminal of the second power supply unit, the other end of the coil of the on / off relay is connected to the signal output terminal of the detection unit at a non-low level, i.e., a high impedance state or a high level. The coil of the on / off relay is de-energized, the normally open switch of the on / off relay is open, and there is no connection between the first switch terminal and the second switch terminal. The wireless transmission... The unit does not transmit abnormal signals to the wireless receiving unit; when the detection unit detects an abnormal state, one end of the coil of the switch relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit at a low level. The coil of the switch relay is energized, the normally open switch of the switch relay is closed, the first switch terminal and the second switch terminal are connected, and the wireless transmitting unit transmits abnormal signals to the wireless receiving unit. The first power supply unit and the second power supply unit can be configured to use the same power supply or to use different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from a non-high level to a high level. When the wireless transmission unit is used to determine whether to transmit an abnormal signal, and the detection unit does not detect an abnormality, although one end of the coil of the on / off relay is connected to the negative terminal of the second power supply unit, the other end of the coil of the on / off relay is connected to the signal output terminal of the detection unit at a non-high level (i.e., a high impedance state or a low level). The coil of the on / off relay is de-energized, the normally open switch of the on / off relay is open, and there is no connection between the first and second switch terminals. The wireless transmission... The unit does not transmit abnormal signals to the wireless receiving unit; when the detection unit detects an abnormal state, one end of the coil of the switch relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the switch relay is connected to the signal output terminal of the detection unit at a high level. The coil of the switch relay is energized, the normally open switch of the switch relay is closed, the first switch terminal and the second switch terminal are connected, and the wireless transmitting unit transmits abnormal signals to the wireless receiving unit. The first power supply unit and the second power supply unit can be configured to use the same power supply or to use different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from low to non-low level. The wireless transmitting unit is used to determine whether to transmit an abnormal signal. If the detection unit does not detect an abnormality, one end of the coil of the on / off relay is connected to the positive terminal of the second power supply unit, and the other end of the coil is connected to the signal output terminal of the detection unit at a low level. The coil of the on / off relay is energized, the normally closed switch of the on / off relay is open, and there is no connection between the first and second switch terminals. The wireless transmitting unit does not transmit signals to the wireless receiving unit. When the detection unit detects an abnormality, one end of the coil of the on / off relay is connected to the positive terminal of the second power supply unit, and the other end of the coil of the on / off relay is connected to the signal output terminal of the detection unit in a non-low level state, i.e., a high impedance state or a high level state. The coil of the on / off relay is de-energized, the normally closed switch of the on / off relay is closed, the first switch terminal and the second switch terminal are connected, and the wireless transmitting unit transmits an abnormal signal to the wireless receiving unit. The first power supply unit and the second power supply unit can be configured to use the same power supply or to use different power supplies. When the detection unit detects an abnormality in the fabric rolling mechanism, its signal output changes from high to non-high level. When the wireless transmitting unit is used to determine whether to transmit an abnormal signal, and the detection unit does not detect an abnormality, one end of the coil of the on / off relay is connected to the negative terminal of the second power supply unit, but the other end of the coil of the on / off relay is connected to the signal output terminal of the detection unit at a high level. The coil of the on / off relay is energized, the normally closed switch of the on / off relay is open, and there is no connection between the first and second switch terminals. The wireless transmitting unit does not transmit a signal to the wireless receiving unit. When the detection unit detects an abnormality, one end of the coil of the on / off relay is connected to the negative terminal of the second power supply unit, and the other end of the coil of the on / off relay is connected to the signal output terminal of the detection unit in a non-high level state, i.e., a high impedance state or a low level state. The coil of the on / off relay is de-energized, the normally closed switch of the on / off relay is closed, the first switch terminal and the second switch terminal are connected, and the wireless transmitting unit transmits an abnormal signal to the wireless receiving unit. The first power supply unit and the second power supply unit can be configured to use the same power supply or different power supplies. Of course, if the wireless transmitter is used to determine whether to transmit a normal signal, only adaptive modifications are needed. For example, in the above technical solution, the normally closed switch of the on / off relay is connected in series between the first switch terminal and the second switch terminal.

[0029] Furthermore, the reverse roll detection unit is used to detect whether the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value. When the reverse roll detection unit detects that the lateral displacement distance of the roll roller does not reach or exceed the predetermined value, the roll mechanism does not experience a reverse roll abnormality; when the reverse roll detection unit detects that the lateral displacement distance of the roll roller reaches or exceeds the predetermined value, the roll mechanism experiences a reverse roll abnormality.

[0030] Using the above technical solution, when the fabric winding mechanism is running, if the fabric winding mechanism does not reverse roll, the fabric winding roller in the fabric winding mechanism is in the normal position and will not laterally shift, or will only laterally shift reasonably, that is, the lateral shift of the fabric winding roller does not exceed the predetermined value; if the fabric winding mechanism reverses roll, the fabric winding roller in the fabric winding mechanism will laterally shift and the lateral shift distance will reach or exceed the preset value. Therefore, the reverse roll detection unit detects whether the lateral shift distance of the fabric winding roller reaches or exceeds the predetermined value, thereby indirectly detecting whether the fabric winding mechanism reverses roll, making the detection unit more reasonable.

[0031] Furthermore, multiple reverse-rolling fabric detection units are provided, and two of the reverse-rolling fabric detection units are respectively used to detect whether the lateral displacement distance at both ends of the roll roll in the length direction reaches or exceeds a predetermined value.

[0032] With the above technical solution, if the fabric is rolled backwards during operation, the fabric roller may only have one end shifted laterally, or both ends may shift laterally simultaneously. Therefore, two reverse roll detection units are set up to detect the lateral shift at both ends of the fabric roller in the length direction, so as to avoid missed detection and ensure the reliability of the detection.

[0033] Furthermore, the two reverse roll detection units for detecting the two ends of the roll roll in the length direction are respectively set at corresponding positions at both ends of the roll roll in the length direction.

[0034] By adopting the above technical solution, the setting of the reverse roll detection unit is more reasonable, so that the detection unit can detect both ends of the roll roller in the length direction; Of course, the two reverse roll detection units can be set on the same side in the width direction of the roll roll or on opposite sides in the width direction of the roll roll.

[0035] Furthermore, the reverse roll detection unit includes a proximity switch that is triggered when the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value; The positive terminal of the proximity switch is connected to the positive terminal of the second power supply unit, and the negative terminal of the proximity switch is connected to the negative terminal of the second power supply unit. The proximity switch signal output terminal is the signal output terminal of the detection unit.

[0036] By adopting the above technical solution, the fabric rewinding detection unit is made more reasonable. The proximity switch is set at the position of the fabric rewinding roller lateral displacement predetermined value. When the fabric rewinding roller lateral displacement does not exceed the predetermined value, the proximity switch will not be triggered. When the fabric rewinding roller lateral displacement reaches or exceeds the predetermined value, the proximity switch will be triggered. In use, the user can adjust the installation position of the proximity switch according to actual usage needs, thereby adjusting the aforementioned predetermined value.

[0037] Furthermore, the proximity switch is of NPN or PNP type.

[0038] By adopting the above technical solution, the proximity switch becomes more reasonable; When the proximity switch is of type NPN and the signal output terminal of the proximity switch is normally open, the proximity switch signal output terminal is in a high impedance state when the proximity switch is not triggered, and outputs a low level, i.e., 0V, when the proximity switch is triggered. At this time, the proximity switch is the case where the output of its signal output terminal changes from non-low level to low level when the detection unit detects an abnormality in the fabric rolling mechanism. When the proximity switch is of type PNP and the signal output terminal of the proximity switch is normally open, the proximity switch signal output terminal is in a high impedance state when the proximity switch is not triggered, and outputs a high level, i.e., 24V, when the proximity switch is triggered. At this time, the proximity switch is the case where the output of its signal output terminal changes from non-high level to high level when the detection unit detects an abnormality in the fabric rolling mechanism. When the proximity switch is of type NPN and the signal output terminal of the proximity switch is normally closed, the proximity switch output terminal outputs a low level, i.e., 0V, when the proximity switch is not triggered. When the proximity switch is triggered, the signal output terminal of the proximity switch is in a high impedance state. At this time, the proximity switch is the case where the output of the signal output terminal of the detection unit changes from low level to non-low level when the detection unit detects an abnormality in the fabric rolling mechanism. When the proximity switch is of type PNP and the signal output terminal of the proximity switch is normally closed, the proximity switch output terminal outputs a high level, i.e., 24V, when the proximity switch is not triggered. When the proximity switch is triggered, the signal output terminal of the proximity switch is in a high impedance state. At this time, the proximity switch is the case where the output of the signal output terminal of the detection unit changes from high level to non-high level when the detection unit detects an abnormality in the fabric rolling mechanism.

[0039] Furthermore, the fabric drop detection unit includes a laser diffuse reflection sensor that is triggered when fabric drops occur; The positive terminal of the laser diffuse reflection sensor is connected to the positive terminal of the second power supply unit, and the negative terminal of the laser diffuse reflection sensor is connected to the negative terminal of the second power supply unit. The laser diffuse reflection sensor signal output terminal is the signal output terminal of the detection unit. By adopting the above technical solution, the fabric drop detection unit is made more reasonable. The laser diffuse reflection sensor is set at the corresponding position of the fabric rolling mechanism. When the fabric rolling mechanism does not drop fabric, the laser diffuse reflection sensor will not detect the obstruction and will not be triggered. When the fabric rolling mechanism drops fabric, the laser diffuse reflection sensor will detect the obstruction and will be triggered.

[0040] Furthermore, the laser diffuse reflection sensor is of NPN or PNP type; The above technical solution makes the laser diffuse reflection sensor more reasonable; When the laser diffuse reflection sensor is an NPN type and the signal output terminal of the laser diffuse reflection sensor is normally open, the laser diffuse reflection sensor signal output terminal is in a high impedance state when the laser diffuse reflection sensor is not triggered, and outputs a low level, i.e., 0V, when the laser diffuse reflection sensor is triggered. At this time, the output of the laser diffuse reflection sensor signal output terminal changes from a non-low level to a low level when the detection unit detects an abnormality in the fabric rolling mechanism. When the laser diffuse reflection sensor is of type PNP and the signal output terminal of the laser diffuse reflection sensor is normally open, the laser diffuse reflection sensor signal output terminal is in a high impedance state when the laser diffuse reflection sensor is not triggered. When the laser diffuse reflection sensor is triggered, the laser diffuse reflection sensor signal output terminal outputs a high level, that is, outputs 24V. At this time, the laser diffuse reflection sensor is the case where the output of its signal output terminal changes from non-high level to high level when the detection unit detects an abnormality in the fabric rolling mechanism.

[0041] When the laser diffuse reflection sensor is of type NPN and the signal output terminal of the laser diffuse reflection sensor is normally closed, the laser diffuse reflection sensor output terminal outputs a low level, i.e., 0V, when the laser diffuse reflection sensor is not triggered. When the laser diffuse reflection sensor is triggered, the signal output terminal of the laser diffuse reflection sensor is in a high impedance state. At this time, the laser diffuse reflection sensor is the case where the output of its signal output terminal changes from low level to non-low level when the detection unit detects an abnormality in the fabric rolling mechanism. When the laser diffuse reflection sensor is of type PNP and its signal output terminal is normally closed, the laser diffuse reflection sensor output terminal outputs a high level (24V) when it is not triggered. When the laser diffuse reflection sensor is triggered, its signal output terminal is in a high-impedance state. At this time, the laser diffuse reflection sensor output terminal changes from a high level to a non-high level when the detection unit detects an abnormality in the fabric rolling mechanism.

[0042] Furthermore, the second power supply unit employs a switching power supply.

[0043] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism is made more reasonable; since the laser diffuse reflection sensor consumes a lot of power during operation, the second power supply unit adopts a switching power supply to ensure relatively stable power supply and avoid the problem of rapid battery consumption caused by using batteries.

[0044] Furthermore, when the first power unit uses a battery, the laser diffuse reflection sensor needs to control the wireless transmitting unit to be in a power-off state or a power-on state via an auxiliary relay, or control the connection and disconnection between the first and second switching terminals of the wireless transmitting unit via a switch-on relay.

[0045] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism is made more reasonable. Since the laser diffuse reflection sensor needs to be powered by a switching power supply, and the first power unit uses a battery, that is, the first power unit and the second power unit are different power sources, the laser diffuse reflection sensor needs to control the wireless transmission unit through an auxiliary relay in order to form a loop.

[0046] Furthermore, the fabric cutting knife malfunction detection unit includes a microswitch that is triggered when the fabric cutting knife malfunctions.

[0047] By adopting the above technical solution, the fabric cutting knife abnormality detection unit is more reasonable, and it is generally set on the fabric cutting knife; when the fabric cutting knife does not malfunction, the fabric will not press down to trigger the micro switch; when the fabric cutting knife malfunctions, the fabric will press down to trigger the micro switch.

[0048] Furthermore, one end of the micro switch is connected to the positive or negative terminal of the second power supply unit, and the other end of the micro switch is formed as the signal output terminal of the detection unit.

[0049] By adopting the above technical solution, the micro switch becomes more reasonable; When one end of the micro switch is connected to the negative terminal of the second power supply unit and the micro switch is normally open, the other end of the micro switch is in a high-impedance state when the micro switch is not triggered. When the micro switch is triggered, the other end outputs a low level, that is, outputs 0V. At this time, the micro switch is the case where the output of the signal output terminal of the detection unit changes from a non-low level to a low level when the detection unit detects an abnormality in the fabric rolling mechanism. When one end of the micro switch is connected to the positive terminal of the second power supply unit and the micro switch is normally open, the other end of the micro switch is in a high-impedance state when the micro switch is not triggered. When the micro switch is triggered, the other end outputs a high level, that is, outputs 24V. At this time, the micro switch is the case where the output of the signal output terminal of the detection unit changes from a non-high level to a high level when the detection unit detects an abnormality in the fabric rolling mechanism. When one end of the micro switch is connected to the negative terminal of the second power supply unit and the micro switch is normally closed, the other end of the micro switch outputs a low level, i.e., 0V, when the micro switch is not triggered. When the micro switch is triggered, the other end is in a high impedance state. At this time, the micro switch is the case where the output of the signal output terminal of the detection unit changes from low level to non-low level when the detection unit detects an abnormality in the fabric rolling mechanism. When one end of the micro switch is connected to the positive terminal of the second power supply unit and the micro switch is normally closed, the other end of the micro switch outputs a high level, i.e., 24V, when the micro switch is not triggered. When the micro switch is triggered, the other end is in a high impedance state. At this time, the micro switch is the case where the output of the signal output terminal of the detection unit changes from high level to non-high level when the detection unit detects an abnormality in the fabric rolling mechanism.

[0050] Furthermore, the wireless receiving unit has a first conducting terminal and a second conducting terminal; The exception handling triggering circuit includes a first signal output terminal and an exception handling signal input terminal. The first signal output terminal is connected to the first conducting terminal, and the exception handling signal input terminal is connected to the second conducting terminal. If the abnormality handling signal input terminal receives a signal output from the first signal output terminal and triggers abnormality handling, and does not trigger abnormality handling if the abnormality handling signal input terminal does not receive a signal output from the first signal output terminal, then in the state where the wireless receiving unit does not receive an abnormal signal sent by the wireless transmitting unit or receives a normal signal sent by the wireless transmitting unit, the first conducting terminal and the second conducting terminal of the wireless receiving unit are not connected; in the state where the wireless receiving unit receives an abnormal signal sent by the wireless transmitting unit or does not receive a normal signal sent by the wireless transmitting unit, the first conducting terminal and the second conducting terminal of the wireless receiving unit are connected. If the abnormality handling signal input terminal does not trigger abnormality handling when it receives the signal output from the first signal output terminal, and triggers abnormality handling when it does not receive the signal output from the first signal output terminal, then the first conducting terminal and the second conducting terminal of the wireless receiving unit are connected when the wireless receiving unit does not receive the abnormal signal sent by the wireless transmitting unit or receives the normal signal sent by the wireless transmitting unit; when the wireless receiving unit receives the abnormal signal sent by the wireless transmitting unit or does not receive the normal signal sent by the wireless transmitting unit, the first conducting terminal and the second conducting terminal of the wireless receiving unit are not connected.

[0051] By adopting the above technical solution, the setting of the wireless receiving unit is made more reasonable. The wireless receiving unit controls whether its first conducting terminal and second conducting terminal are connected to realize whether to trigger abnormal processing. Normally, the following applies: when the abnormality processing signal input terminal receives a signal output from the first signal output terminal, abnormality processing is triggered; when the abnormality processing signal input terminal does not receive a signal output from the first signal output terminal, abnormality processing is not triggered. In this case, when the wireless receiving unit does not receive an abnormal signal sent by the wireless transmitting unit or receives a normal signal sent by the wireless transmitting unit, the first and second conducting terminals of the wireless receiving unit are not connected; when the wireless receiving unit receives an abnormal signal sent by the wireless transmitting unit, the first and second conducting terminals of the wireless receiving unit are connected.

[0052] Furthermore, the wireless receiving unit is powered by an external power source, with the positive terminal of the wireless receiving unit connected to the positive terminal of the external power source and the negative terminal of the wireless receiving unit connected to the negative terminal of the external power source.

[0053] By adopting the above technical solution, the configuration of the wireless receiving unit becomes more reasonable.

[0054] Furthermore, the fabric winding mechanism is applied to a large circular knitting machine, and the external power supply is the power supply in the main control circuit of the large circular knitting machine.

[0055] By adopting the above technical solution, the abnormal alarm circuit structure of the fabric rolling mechanism becomes more reasonable.

[0056] Furthermore, the abnormality handling is a shutdown operation, the first signal output terminal is the alarm signal output terminal on the large circular knitting machine, and the abnormality handling signal input terminal is the alarm shutdown input terminal on the large circular knitting machine controller; specifically, the alarm signal output terminal on the large circular knitting machine is the 0V or 24V power supply on the large circular knitting machine.

[0057] By adopting the above technical solution, the abnormal handling operation is made more reasonable, and the shutdown can avoid equipment damage, thereby reducing losses. Since the fabric winding mechanism is used in the circular knitting machine, the fabric winding mechanism will cooperate with other mechanisms of the circular knitting machine. The first signal output terminal is the alarm signal output terminal on the circular knitting machine, and the abnormal handling signal input terminal is the alarm shutdown input terminal on the controller of the circular knitting machine. This makes the settings of the first signal output terminal and the abnormal handling signal input terminal more reasonable. When the abnormal alarm circuit of the fabric winding mechanism detects an abnormality, it triggers the abnormal triggering circuit on the circular knitting machine, and the controller of the circular knitting machine performs overall abnormal handling.

[0058] Furthermore, the wireless transmitting unit and the wireless receiving unit communicate through omnidirectional wireless communication technology; specifically, the wireless transmitting unit and the wireless receiving unit communicate through radio frequency technology.

[0059] By adopting the above technical solution, the communication between the wireless transmitting unit and the wireless receiving unit becomes more reliable and stable. The signal transmitted by the wireless transmitting unit propagates in all directions, so there is no need for the wireless transmitting unit and the wireless receiving unit to keep their lines of sight in order to achieve communication.

[0060] Furthermore, the wireless receiving unit includes a wireless receiving module and a wireless receiving unit relay. The two ends of the contact switch on the wireless receiving unit relay are formed as the first conducting end and the second conducting end. The wireless receiving module can wirelessly communicate with the wireless transmitting unit and control the energization and de-energization of the coil of the wireless receiving unit relay according to the received signal.

[0061] By adopting the above technical solution, the wireless receiving unit becomes more reasonable.

[0062] A large circular knitting machine fabric winding mechanism includes the aforementioned fabric winding mechanism abnormal alarm circuit.

[0063] By adopting the above technical solution, the fabric winding mechanism of the large circular knitting machine is made more reasonable, enabling the large circular knitting machine to reliably and stably detect the reverse winding of the fabric and handle abnormalities, effectively avoiding equipment damage caused by abnormalities in the fabric winding mechanism.

[0064] Compared with the prior art, the present invention has the following beneficial effects: (1) The fabric winding mechanism abnormal alarm circuit and the fabric winding mechanism of the large circular knitting machine of this utility model can stably and reliably trigger abnormal processing when an abnormality is detected in the fabric winding mechanism.

[0065] (2) The abnormal alarm circuit of the fabric rolling mechanism and the fabric rolling mechanism of the large circular knitting machine of this utility model are reasonably designed. Attached Figure Description

[0066] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts an NPN type proximity switch, and the proximity switch directly controls the on / off state between the wireless transmitter and the power supply unit through its own signal output terminal). Figure 2 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts a PNP type proximity switch, and the proximity switch directly controls the on / off state between the wireless transmitter and the power supply unit through its own signal output terminal). Figure 3 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts an NPN type proximity switch, and the proximity switch controls the on / off state between the wireless transmitter and the power supply unit through an auxiliary relay). Figure 4 This is a schematic diagram of the anti-reverse rolling circuit of the fabric rolling mechanism of this utility model (the detection unit adopts an NPN type proximity switch, and the proximity switch controls the connection and disconnection between the first and second switching terminals of the wireless transmission unit through a switch on / off relay). Figure 5 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts an NPN normally open laser diffuse reflection sensor, and the laser diffuse reflection sensor controls the on / off state between the wireless transmitter and the power supply unit through an auxiliary relay). Figure 6 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts an NPN normally closed laser diffuse reflection sensor, and the laser diffuse reflection sensor controls the on / off state between the wireless transmitter and the power supply unit through an auxiliary relay). Figure 7 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts a PNP normally open laser diffuse reflection sensor, and the laser diffuse reflection sensor controls the on / off state between the wireless transmitter and the power supply unit through an auxiliary relay). Figure 8 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts a laser diffuse reflection sensor, and the first power supply unit and the second power supply unit are the same power supply). Figure 9 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts a micro switch, and the first power supply unit and the second power supply unit adopt batteries). Figure 10 This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (another embodiment in which the detection unit adopts a micro switch and the first power supply unit and the second power supply unit adopt batteries). Figure 11This is a schematic diagram of the abnormal alarm circuit of the fabric rolling mechanism of this utility model (the detection unit adopts a micro switch, and the first power supply unit and the second power supply unit adopt a switching power supply). The component names corresponding to the various reference numerals in the figure are as follows: 1. Detection unit; 101. Fabric roll detection unit; 101-1. Proximity switch; 101-11. Proximity switch signal output terminal; 102. Fabric drop detection unit; 102-1. Laser diffuse reflection sensor; 102-11. Laser diffuse reflection sensor signal output terminal; 103. Fabric cutting knife abnormality detection unit; 103-1. Micro switch; 104. Signal output terminal; 2. Wireless transmitting unit; 201. First switch terminal; 202. Second switch terminal; 3. Wireless receiving unit; 301. First conducting terminal; 302. Second conducting terminal; 303. Wireless receiving module; 304. Wireless receiving unit relay; 4. First power supply unit; 5. Second power supply unit; 6. Auxiliary relay; 7. Switch on / off relay; 8. Abnormal handling trigger circuit; 801. First signal output terminal; 802. Abnormal handling signal input terminal; 100. External power supply. Detailed Implementation

[0068] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0069] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0070] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0071] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0072] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0073] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0074] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0075] See Figures 1 to 11 This utility model provides an alarm circuit for a fabric rolling mechanism, which is used in a fabric rolling mechanism and includes: a detection unit 1, a wireless transmission unit 2, and a wireless receiving unit 3. The detection unit 1 is used to detect whether the fabric rolling mechanism is abnormal. The detection unit 1 is connected to the wireless transmission unit 2 and controls the wireless transmission unit 2 to transmit an abnormal signal or a normal signal according to its detection result. The wireless receiving unit 3 and the wireless transmitting unit 2 are wirelessly connected. The wireless receiving unit 3 controls whether to trigger the abnormal processing of the fabric rolling mechanism according to the received signal. Specifically, if the wireless receiving unit 3 does not receive an abnormal signal sent by the wireless transmitting unit 2 or receives a normal signal sent by the wireless transmitting unit 2, the wireless receiving unit 3 will not trigger the abnormal processing of the fabric rolling mechanism. If the wireless receiving unit 3 receives an abnormal signal sent by the wireless transmitting unit 2 or does not receive a normal signal sent by the wireless transmitting unit 2, the wireless receiving unit 3 will trigger the abnormal processing of the fabric rolling mechanism.

[0076] Using the above technical solution, when the detection unit 1 does not detect any abnormality in the fabric rolling mechanism, the detection unit 1 controls the wireless transmitting unit 2 to either not transmit an abnormal signal to the wireless receiving unit 3 or to transmit a normal signal to the wireless receiving unit 3; if the wireless receiving unit 3 does not receive an abnormal signal from the wireless transmitting unit 2 or receives a normal signal from the wireless transmitting unit 2, the wireless receiving unit 3 does not trigger abnormal processing of the fabric rolling mechanism, and the fabric rolling mechanism operates normally; When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the detection unit 1 controls the wireless transmitting unit 2 to transmit an abnormal signal to the wireless receiving unit 3 or not to transmit a normal signal to the wireless receiving unit 3; when the wireless receiving unit 3 receives the abnormal signal sent by the wireless transmitting unit 2 or does not receive the normal signal sent by the wireless transmitting unit 2, the wireless receiving unit 3 triggers the abnormality handling of the fabric rolling mechanism and performs abnormality handling, such as a shutdown operation. Furthermore, in the above technical solution, the wireless transmitting unit 2 and the wireless receiving unit 3 communicate wirelessly. Therefore, there are no wire restrictions between the two when installing and deploying the wireless transmitting unit 2 and the wireless receiving unit 3, making the installation and deployment of the wireless transmitting unit 2 and the wireless receiving unit 3 more convenient and flexible, and making the output of abnormal or normal signals more stable and reliable.

[0077] Furthermore, the detection unit 1 includes at least one of the following: a reverse roll detection unit 101 for detecting whether the roll mechanism has a reverse roll abnormality, a drop detection unit 102 for detecting whether the roll mechanism has a drop abnormality, and a cutter abnormality detection unit 103 for detecting whether the cutter in the roll mechanism is abnormal.

[0078] By adopting the above technical solution, the detection unit 1 becomes more reasonable; When the reverse roll detection unit 101 is provided, the reverse roll detection unit 101 can detect whether the roll mechanism is reverse roll. When the reverse roll detection unit 101 detects that the roll mechanism is reverse roll, it means that the roll mechanism is abnormal. When the fabric dropping detection unit 102 is provided, the fabric dropping detection unit 102 can detect whether the fabric rolling mechanism has dropped fabric. When the fabric dropping detection unit 102 detects that the fabric rolling mechanism has dropped fabric, it means that the fabric rolling mechanism has been detected to be abnormal. When the fabric cutting knife abnormality detection unit 103 is provided, the fabric cutting knife abnormality detection unit 103 can detect whether the fabric cutting knife in the fabric rolling mechanism is abnormal. When the fabric cutting knife abnormality detection unit 103 detects that the fabric cutting knife in the fabric rolling mechanism is abnormal, it means that the fabric rolling mechanism is abnormal. Specifically, the number of wireless transmitting units 2 is matched with the number of detection units 1. It can be a one-to-one correspondence, or several detection units 1 can correspond to one wireless transmitting unit 2, or all detection units 1 can correspond to one wireless transmitting unit 2. The number of wireless receiving units 3 is matched with the number of wireless transmitting units 2. They can be in a one-to-one correspondence, or several wireless transmitting units 2 can correspond to one wireless receiving unit 3, or all of the wireless transmitting units 2 can correspond to one wireless receiving unit 3.

[0079] Furthermore, the fabric rolling mechanism abnormal alarm circuit includes a first power supply unit 4 for powering the wireless transmitting unit 2 and a second power supply unit 5 for powering the detection unit 1.

[0080] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism is made more reasonable. The first power supply unit 4 provides operating power to the wireless transmission unit 2, and the second power supply unit 5 provides operating power to the detection unit 1.

[0081] Furthermore, the first power supply unit 4 uses a battery or a switching power supply; The second power supply unit 5 uses a battery or a switching power supply.

[0082] The above technical solution makes the first power supply unit 4 and the second power supply unit 5 more reasonable; When the first power supply unit 4 uses a switching power supply, it can ensure that the first power supply unit 4 can continuously supply power to the wireless transmitting unit 2 without worrying about the power supply status of the first power supply unit 4. When the second power supply unit 5 uses a switching power supply, it can ensure that the second power supply unit 5 can continuously supply power to the detection unit 1 without worrying about the power supply status of the second power supply unit 5. Since the fabric rolling mechanism abnormal alarm circuit is used for the fabric rolling mechanism, and the fabric rolling mechanism is a rotating structure, when using a switching power supply, it needs to be connected to the power supply of the large circular knitting machine through an electric slip ring. However, the electric slip ring may experience poor contact during long-term operation, which will lead to unreliable power supply. When the first power unit 4 uses a battery, the first power unit 4 does not need to go through the electric slip ring, ensuring the reliability of power supply to the wireless transmitting unit 2. When the second power unit 5 uses a battery, the second power unit 5 does not need to go through the electric slip ring, ensuring the reliability of power supply to the detection unit 1.

[0083] It should be noted that the naming conventions of the first and second structures in this article are merely for ease of description and should not be used to conclude that the first and second structures refer to two independent structures. They can refer to two independent structures or the same structure.

[0084] Furthermore, the first power supply unit 4 and the second power supply unit 5 are configured to use the same power supply or to use different power supplies.

[0085] The above technical solution makes the first power supply unit 4 and the second power supply unit 5 more reasonable; The configuration of the first power supply unit 4 and the second power supply unit 5 as the same power supply can be understood as: the first power supply unit 4 and the second power supply unit 5 are the same power supply, that is, the first power supply unit 4 is the second power supply unit 5, and the second power supply unit 5 is the first power supply unit 4. The fact that the first power supply unit 4 and the second power supply unit 5 are configured as different power supplies can be understood as: the first power supply unit 4 and the second power supply unit 5 are two independent power supplies.

[0086] Furthermore, in some embodiments, when the wireless transmitting unit 2 is in a power-off state, the wireless transmitting unit 2 does not transmit abnormal signals to the wireless receiving unit 3; when the wireless transmitting unit 2 is in a power-on state, the wireless transmitting unit 2 transmits abnormal signals to the wireless receiving unit 3. Alternatively, if the wireless transmitting unit 2 is in a power-off state, the wireless transmitting unit 2 will not transmit a normal signal to the wireless receiving unit 3; if the wireless transmitting unit 2 is in a power-on state, the wireless transmitting unit 2 will transmit a normal signal to the wireless receiving unit 3. The detection unit 1 is used to control the wireless transmission unit 2 to be in a power-off state or a power-on state.

[0087] The above technical solution makes the wireless transmitting unit 2 and the detection unit 1 more reasonable; When the signal transmitted by the wireless transmitting unit 2 is an abnormal signal, and the detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state, the wireless transmitting unit 2 will not transmit the abnormal signal to the wireless receiving unit 3; when the detection unit 1 controls the wireless transmitting unit 2 to be in a power-on state, the wireless transmitting unit 2 will transmit the abnormal signal to the wireless receiving unit 3. When the signal transmitted by the wireless transmitting unit 2 is a normal signal, and the detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state, the wireless transmitting unit 2 will not transmit a normal signal to the wireless receiving unit 3; when the detection unit 1 controls the wireless transmitting unit 2 to be in a power-on state, the wireless transmitting unit 2 will transmit a normal signal to the wireless receiving unit 3.

[0088] Furthermore, the detection unit 1 has a signal output terminal 104; the detection unit 1 can directly control the wireless transmitting unit 2 to be in a power-off state or a power-on state through its own signal output terminal 104, or the detection unit 1 can control the wireless transmitting unit 2 to be in a power-off state or a power-on state through an auxiliary relay 6.

[0089] By adopting the above technical solution, it is more reasonable for the detection unit 1 to control the wireless transmission unit 2 to be in a power-off state or a power-on state.

[0090] Furthermore, when the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. The detection unit 1 directly controls the wireless transmission unit 2 to be in a power-off state or a power-on state through its own signal output terminal 104. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, the positive terminal of the wireless transmission unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmission unit 2 is connected to the signal output terminal 104 of the detection unit 1. The first power supply unit 4 and the second power supply unit 5 are configured to use the same power supply. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state or a power-on state through the auxiliary relay 6. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1. The positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the negative terminal of the first power supply unit 4. The normally open switch of the auxiliary relay 6 is connected in series between the positive terminal of the wireless transmitting unit 2 and the positive terminal of the first power supply unit 4 and / or in series between the negative terminal of the wireless transmitting unit 2 and the negative terminal of the first power supply unit 4. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. The detection unit 1 directly controls the wireless transmission unit 2 to be in a power-off state or a power-on state through its own signal output terminal 104. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, the negative terminal of the wireless transmission unit 2 is connected to the negative terminal of the first power supply unit 4, and the positive terminal of the wireless transmission unit 2 is connected to the signal output terminal 104 of the detection unit 1. The first power supply unit 4 and the second power supply unit 5 are configured to use the same power supply. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state or a power-on state through the auxiliary relay 6. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1. The positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the negative terminal of the first power supply unit 4. The normally open switch of the auxiliary relay 6 is connected in series between the positive terminal of the wireless transmitting unit 2 and the positive terminal of the first power supply unit 4 and / or in series between the negative terminal of the wireless transmitting unit 2 and the negative terminal of the first power supply unit 4. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from low level to non-low level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state or a power-on state through the auxiliary relay 6. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1. The positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the negative terminal of the first power supply unit 4. The normally closed switch of the auxiliary relay 6 is connected in series between the positive terminal of the wireless transmitting unit 2 and the positive terminal of the first power supply unit 4 and / or in series between the negative terminal of the wireless transmitting unit 2 and the negative terminal of the first power supply unit 4. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from high level to non-high level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off state or a power-on state through the auxiliary relay 6. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1. The positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the negative terminal of the first power supply unit 4. The normally closed switch of the auxiliary relay 6 is connected in series between the positive terminal of the wireless transmitting unit 2 and the positive terminal of the first power supply unit 4 and / or in series between the negative terminal of the wireless transmitting unit 2 and the negative terminal of the first power supply unit 4.

[0091] In this article, the switch on the relay can be understood as: a common terminal on the relay, a normally open or normally closed contact, and related mechanical parts forming a single switch; a normally open switch on the relay can be understood as: a common terminal on the relay, a normally open contact, and related mechanical parts forming a single switch; a normally closed switch on the relay can be understood as: a common terminal on the relay, a normally closed contact, and related mechanical parts forming a single switch. This explanation is for ease of understanding and is not intended to be limiting. By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism becomes more reasonable. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. The detection unit 1 directly controls the wireless transmitting unit 2 to be in a power-off or power-on state through its own signal output terminal 104. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, if the detection unit 1 does not detect an abnormality, although the positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, the negative terminal of the wireless transmitting unit 2 is connected to the signal output terminal 104 of the detection unit 1 at a non-low level, i.e., a high impedance state or a high level, and the wireless transmitting unit 2 is in a power-off state and does not transmit an abnormal signal. If the detection unit 1 detects an abnormality, the positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the signal output terminal 104 of the detection unit 1 at a low level, and the wireless transmitting unit 2 is in a power-on state and transmits an abnormal signal. The first power supply unit 4 and the second power supply unit 5 are configured with the same power supply, making the structure more reasonable and facilitating the implementation of a loop. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off or power-on state via the auxiliary relay 6. When the wireless transmitter is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, although one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a non-low level, i.e., a high-impedance state or a high level. The coil of the auxiliary relay 6 is de-energized, the normally open switch of the auxiliary relay 6 is open, and the wireless transmitting unit 2 cannot connect to the first power supply unit. Unit 4 establishes a circuit, the wireless transmitting unit 2 is in a de-energized state, and the wireless transmitting unit 2 does not transmit abnormal signals; when the detection unit 1 detects an abnormal state, one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a low level, the coil of the auxiliary relay 6 is energized, the normally open switch of the auxiliary relay 6 is closed, the wireless transmitting unit 2 establishes a circuit with the first power supply unit 4, the wireless transmitting unit 2 is in a powered state, and the wireless transmitting unit 2 transmits abnormal signals. The first power supply unit 4 and the second power supply unit 5 can be configured with the same power supply or with different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. The detection unit 1 directly controls the wireless transmitter to be in a power-off or power-on state through its own signal output terminal 104. When the wireless transmitter is used to determine whether to transmit an abnormal signal, if the detection unit 1 does not detect an abnormality, although the negative terminal of the wireless transmitter 2 is connected to the negative terminal of the first power supply unit 4, the positive terminal of the wireless transmitter 2 is connected to the signal output terminal 104 of the detection unit 1 at a non-high level, i.e., a high impedance state or a low level. The wireless transmitter 2 is in a power-off state and does not transmit an abnormal signal. If the detection unit 1 detects an abnormality, the negative terminal of the wireless transmitter 2 is connected to the negative terminal of the first power supply unit 4, and the positive terminal of the wireless transmitter 2 is connected to the signal output terminal 104 of the detection unit 1 at a high level. The wireless transmitter 2 is in a power-on state and transmits an abnormal signal. The first power supply unit 4 and the second power supply unit 5 are configured with the same power supply, making the structure more reasonable and facilitating the implementation of a loop. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off or power-on state via the auxiliary relay 6. When the wireless transmitter is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, although one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a non-high level (i.e., a high-impedance state or a low level). The coil of the auxiliary relay 6 is de-energized, the normally open switch of the auxiliary relay 6 is open, and the wireless transmitting unit 2 cannot connect to the first power supply unit. Unit 4 establishes a circuit, the wireless transmitting unit 2 is in a de-energized state, and the wireless transmitting unit 2 does not transmit abnormal signals; when the detection unit 1 detects an abnormal state, one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a high level, the coil of the auxiliary relay 6 is energized, the normally open switch of the auxiliary relay 6 is closed, the wireless transmitting unit 2 establishes a circuit with the first power supply unit 4, the wireless transmitting unit 2 is in a powered state, and the wireless transmitting unit 2 transmits abnormal signals. The first power supply unit 4 and the second power supply unit 5 can be configured with the same power supply or with different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from low level to non-low level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off or power-on state via the auxiliary relay 6. The wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal. If the detection unit 1 does not detect an abnormality, one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a low level. The coil of the auxiliary relay 6 is energized, the normally closed switch of the auxiliary relay 6 is opened, and the wireless transmitting unit 2 cannot establish a circuit with the first power supply unit 4. When the wireless transmitting unit 2 is in a de-energized state, it does not transmit any abnormal signals. When the detection unit 1 detects an abnormal state, one end of the coil of the auxiliary relay 6 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 in a non-low level state, i.e., in a high impedance state or a high level state. The coil of the auxiliary relay 6 is de-energized, the normally closed switch of the auxiliary relay 6 is closed, the wireless transmitting unit 2 establishes a circuit with the first power supply unit 4, the wireless transmitting unit 2 is powered, and the wireless transmitting unit 2 transmits abnormal signals. The first power supply unit 4 and the second power supply unit 5 can be configured with the same power supply or with different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from high level to non-high level. The detection unit 1 controls the wireless transmitting unit 2 to be in a power-off or power-on state via the auxiliary relay 6. The wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal. If the detection unit 1 does not detect an abnormality, one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 at a high level. The coil of the auxiliary relay 6 is energized, the normally closed switch of the auxiliary relay 6 is opened, and the wireless transmitting unit 2 cannot establish a circuit with the first power supply unit 4. When the wireless transmitting unit 2 is in a de-energized state, it does not transmit any abnormal signals. When the detection unit 1 detects an abnormal state, one end of the coil of the auxiliary relay 6 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the auxiliary relay 6 is connected to the signal output terminal 104 of the detection unit 1 in a non-high level state, i.e., in a high impedance state or a low level state. The coil of the auxiliary relay 6 is de-energized, the normally closed switch of the auxiliary relay 6 is closed, the wireless transmitting unit 2 establishes a circuit with the first power supply unit 4, the wireless transmitting unit 2 is powered, and the wireless transmitting unit 2 transmits abnormal signals. The first power supply unit 4 and the second power supply unit 5 can be configured with the same power supply or with different power supplies. Of course, if the wireless transmitter is used to determine whether to transmit a normal signal, only adaptive modifications are needed. For example, in the above technical solution, the normally closed switch of the auxiliary relay 6 can be connected in series between the positive terminal of the wireless transmitting unit 2 and the positive terminal of the first power supply unit 4 and / or in series between the negative terminal of the wireless transmitting unit 2 and the negative terminal of the first power supply unit 4.

[0092] Furthermore, in some embodiments, the wireless transmitting unit 2 has a first switching terminal 201 and a second switching terminal 202; When the first switch terminal 201 and the second switch terminal 202 of the wireless transmitting unit 2 are not connected, the wireless transmitting unit 2 does not transmit abnormal signals to the wireless receiving unit 3. When the first switch terminal 201 and the second switch terminal 202 of the wireless transmitting unit 2 are connected, the wireless transmitting unit 2 transmits abnormal signals to the wireless receiving unit 3. Alternatively, if the first switch terminal 201 and the second switch terminal 202 of the wireless transmitting unit 2 are not connected, the wireless transmitting unit 2 transmits a normal signal to the wireless receiving unit 3; if the first switch terminal 201 and the second switch terminal 202 of the wireless transmitting unit 2 are connected, the wireless transmitting unit 2 does not transmit a normal signal to the wireless receiving unit 3. The detection unit 1 is used to control the connection and disconnection between the first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2.

[0093] The above technical solution makes the wireless transmitting unit 2 and the detection unit 1 more reasonable; When the signal transmitted by the wireless transmitting unit 2 is an abnormal signal, if the detection unit 1 controls the first switch terminal 201 and the second switch terminal 202 in the wireless transmitting unit 2 to be disconnected, the wireless transmitter will not transmit the abnormal signal to the wireless receiving unit 3; if the detection unit 1 controls the first switch terminal 201 and the second switch terminal 202 in the wireless transmitting unit 2 to be connected, the wireless transmitter will transmit the abnormal signal to the wireless receiving unit 3. When the signal transmitted by the wireless transmitting unit 2 is a normal signal, if the detection unit 1 controls the first switch terminal 201 and the second switch terminal 202 in the wireless transmitting unit 2 to be disconnected, the wireless transmitter will not transmit a normal signal to the wireless receiving unit 3; if the detection unit 1 controls the first switch terminal 201 and the second switch terminal 202 in the wireless transmitting unit 2 to be connected, the wireless transmitter will transmit a normal signal to the wireless receiving unit 3.

[0094] Furthermore, the detection unit 1 has a signal output terminal 104; the detection unit 1 controls the connection and disconnection between the first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2 through the switch on / off relay 7.

[0095] By adopting the above technical solution, the detection unit 1 can more reasonably control the on / off state between the first switch terminal 201 and the second switch terminal 202.

[0096] Furthermore, the positive terminal of the wireless transmitting unit 2 is connected to the positive terminal of the first power supply unit 4, and the negative terminal of the wireless transmitting unit 2 is connected to the negative terminal of the first power supply unit 4. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay 7 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1. The first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2 are connected through the normally open switch of the switch relay 7. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1. The first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2 are connected through the normally open switch of the switch relay 7. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from low level to non-low level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay 7 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1. The first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2 are connected through the normally closed switch of the switch relay 7. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a high level to a non-high level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1. The first switch terminal 201 and the second switch terminal 202 of the wireless transmission unit 2 are connected through the normally closed switch of the switch relay 7.

[0097] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism becomes more reasonable; When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-low level to a low level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, although one end of the coil of the switch-on relay 7 is connected to the positive terminal of the second power supply unit 5, the other end of the coil of the switch-on relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a non-low level, i.e., a high impedance state or a high level. The coil of the switch-on relay 7 is de-energized, the normally open switch of the switch-on relay 7 is open, and there is no connection between the first switch terminal 201 and the second switch terminal 202. The wireless transmission... Unit 2 does not transmit abnormal signals to the wireless receiving unit 3; when the detection unit 1 detects an abnormal state, one end of the coil of the switch relay 7 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a low level. The coil of the switch relay 7 is energized, the normally open switch of the switch relay 7 is closed, the first switch terminal 201 and the second switch terminal 202 are connected, and the wireless transmitting unit 2 transmits abnormal signals to the wireless receiving unit 3. The first power supply unit 4 and the second power supply unit 5 can be configured to use the same power supply or to use different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from a non-high level to a high level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, although one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a non-high level, i.e., a high impedance state or a low level. The coil of the switch relay 7 is de-energized, the normally open switch of the switch relay 7 is open, and there is no connection between the first switch terminal 201 and the second switch terminal 202. The wireless transmission... Unit 2 does not transmit abnormal signals to the wireless receiving unit 3; when the detection unit 1 detects an abnormal state, one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a high level. The coil of the switch relay 7 is energized, the normally open switch of the switch relay 7 is closed, the first switch terminal 201 and the second switch terminal 202 are connected, and the wireless transmitting unit 2 transmits abnormal signals to the wireless receiving unit 3. The first power supply unit 4 and the second power supply unit 5 can be configured with the same power supply or with different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from low level to non-low level. When the wireless transmitting unit 2 is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, one end of the coil of the switch-on / off relay 7 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the switch-on / off relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a low level. The coil of the switch-on / off relay 7 is energized, the normally closed switch of the switch-on / off relay 7 opens, and the first switch terminal 201 and the second switch terminal 202 are not connected. Therefore, the wireless transmitting unit 2 does not transmit signals to the wireless receiving unit 3. When the detection unit 1 detects an abnormal state, one end of the coil of the switch relay 7 is connected to the positive terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 in a non-low level state, i.e., in a high impedance state or a high level state. The coil of the switch relay 7 is de-energized, the normally closed switch of the switch relay 7 is closed, the first switch terminal 201 and the second switch terminal 202 are connected, and the wireless transmitting unit 2 transmits an abnormal signal to the wireless receiving unit 3. The first power supply unit 4 and the second power supply unit 5 can be configured to use the same power supply or to use different power supplies. When the detection unit 1 detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal 104 changes from high level to non-high level. When the wireless transmission unit 2 is used to determine whether to transmit an abnormal signal, and the detection unit 1 does not detect an abnormality, one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, but the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 at a high level. The coil of the switch relay 7 is energized, the normally closed switch of the switch relay 7 is open, and there is no connection between the first switch terminal 201 and the second switch terminal 202. Therefore, the wireless transmission unit 2 does not transmit a signal to the wireless receiver. When the detection unit 1 detects an abnormal state, one end of the coil of the switch relay 7 is connected to the negative terminal of the second power supply unit 5, and the other end of the coil of the switch relay 7 is connected to the signal output terminal 104 of the detection unit 1 in a non-high level state, i.e., a high impedance state or a low level state. The coil of the switch relay 7 is de-energized, the normally closed switch of the switch relay 7 is closed, the first switch terminal 201 and the second switch terminal 202 are connected, and the wireless transmitting unit 2 transmits an abnormal signal to the wireless receiving unit 3. The first power supply unit 4 and the second power supply unit 5 can be configured to use the same power supply or to use different power supplies. Of course, if the wireless transmitter is used to determine whether to transmit a normal signal, only adaptive modifications are needed. For example, in the above technical solution, the normally closed switch of the on / off relay 7 is connected in series between the first switch terminal 201 and the second switch terminal 202.

[0098] Furthermore, the reverse roll detection unit 101 is used to detect whether the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value. When the reverse roll detection unit 101 detects that the lateral displacement distance of the roll roller does not reach or exceed the predetermined value, the roll mechanism does not experience a reverse roll abnormality. When the reverse roll detection unit 101 detects that the lateral displacement distance of the roll roller reaches or exceeds the predetermined value, the roll mechanism experiences a reverse roll abnormality.

[0099] Using the above technical solution, when the fabric winding mechanism is running, if the fabric winding mechanism does not reverse roll, the fabric winding roller in the fabric winding mechanism is in the normal position and will not laterally shift, or will only laterally shift reasonably, that is, the lateral shift of the fabric winding roller does not exceed the predetermined value; if the fabric winding mechanism reverses roll, the fabric winding roller in the fabric winding mechanism will laterally shift and the lateral shift distance will reach or exceed the preset value. Therefore, the reverse roll detection unit 101 detects whether the lateral shift distance of the fabric winding roller reaches or exceeds the predetermined value, thereby indirectly detecting whether the fabric winding mechanism reverses roll, making the detection unit 1 more reasonable.

[0100] Furthermore, multiple reverse roll detection units 101 are provided, and two reverse roll detection units 101 are respectively used to detect whether the lateral displacement distance at both ends of the roll roll in the length direction reaches or exceeds a predetermined value.

[0101] Using the above technical solution, if the fabric is rolled backwards during operation of the fabric rolling mechanism, the fabric rolling roller may only have one end shifted laterally, or both ends may shift laterally simultaneously. Therefore, two reverse fabric rolling detection units 101 are set up to detect the lateral shift at both ends of the fabric rolling roller in the length direction, so as to avoid missed detection and ensure the reliability of the detection.

[0102] Furthermore, the two reverse roll detection units 101 used to detect the two ends of the roll roll in the length direction are respectively arranged at corresponding positions at both ends of the roll roll in the length direction.

[0103] By adopting the above technical solution, the setting of the reverse roll detection unit 101 is more reasonable, so that the detection unit 1 can detect both ends of the roll roll in the length direction. Of course, the two reverse roll detection units 101 can be set on the same side in the width direction of the roll roll or on opposite sides in the width direction of the roll roll.

[0104] Furthermore, the reverse roll detection unit 101 includes a proximity switch 101-1 that is triggered when the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value; The positive terminal of the proximity switch 101-1 is connected to the positive terminal of the second power supply unit 5, and the negative terminal of the proximity switch 101-1 is connected to the negative terminal of the second power supply unit 5. The proximity switch signal output terminal 101-11 of the proximity switch 101-1 is the signal output terminal 104 of the detection unit 1.

[0105] By adopting the above technical solution, the reverse roll detection unit 101 is more reasonable. The proximity switch 101-1 is set at the position of the predetermined value of the lateral displacement of the roll roller. When the lateral displacement of the roll roller does not exceed the predetermined value, the proximity switch 101-1 will not be triggered. When the lateral displacement of the roll roller reaches or exceeds the predetermined value, the proximity switch 101-1 will be triggered. In use, the user can adjust the installation position of the proximity switch 101-1 according to the actual usage needs, thereby adjusting the above-mentioned predetermined value.

[0106] Furthermore, the proximity switch 101-1 is of NPN or PNP type.

[0107] The above technical solution makes the proximity switch 101-1 more reasonable; When the proximity switch 101-1 is of NPN type and the proximity switch signal output terminal 101-11 is normally open, the proximity switch signal output terminal 101-11 is in a high impedance state when the proximity switch 101-1 is not triggered, and outputs a low level, i.e., outputs 0V, when the proximity switch 101-1 is triggered. At this time, the proximity switch 101-1 is the case where the output of its signal output terminal 104 changes from non-low level to low level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When the proximity switch 101-1 is a PNP type and the proximity switch signal output terminal 101-11 is normally open, the proximity switch signal output terminal 101-11 is in a high impedance state when the proximity switch 101-1 is not triggered. When the proximity switch 101-1 is triggered, its proximity switch signal output terminal 101-11 outputs a high level, that is, outputs 24V. At this time, the proximity switch 101-1 is the case where the output of its signal output terminal 104 changes from a non-high level to a high level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When the proximity switch 101-1 is of NPN type and the proximity switch signal output terminal 101-11 is normally closed, the proximity switch 101-11 outputs a low level, i.e., 0V, when the proximity switch 101-1 is not triggered. When the proximity switch 101-1 is triggered, the proximity switch signal output terminal 101-11 is in a high impedance state. At this time, the proximity switch 101-1 is the case where the output of the signal output terminal 104 of the detection unit 1 changes from low level to non-low level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When the proximity switch 101-1 is of type PNP and the proximity switch signal output terminal 101-11 is normally closed, the proximity switch 101-11 outputs a high level, i.e., 24V, when the proximity switch 101-1 is not triggered. When the proximity switch 101-1 is triggered, the proximity switch signal output terminal 101-11 is in a high impedance state. At this time, the proximity switch 101-1 is the case where the output of its signal output terminal 104 changes from high level to non-high level when the detection unit 1 detects an abnormality in the fabric rolling mechanism.

[0108] Furthermore, the fabric drop detection unit 102 includes a laser diffuse reflection sensor 102-1 that is triggered when fabric drops occur; The positive terminal of the laser diffuse reflection sensor 102-1 is connected to the positive terminal of the second power supply unit 5, and the negative terminal of the laser diffuse reflection sensor 102-1 is connected to the negative terminal of the second power supply unit 5. The laser diffuse reflection sensor signal output terminal 102-11 of the laser diffuse reflection sensor 102-1 is the signal output terminal 104 of the detection unit 1. By adopting the above technical solution, the fabric drop detection unit 102 is made more reasonable. The laser diffuse reflection sensor 102-1 is set at the corresponding position of the fabric rolling mechanism. When the fabric rolling mechanism does not drop fabric, the laser diffuse reflection sensor 102-1 will not detect the obstruction and will not be triggered. When the fabric rolling mechanism drops fabric, the laser diffuse reflection sensor 102-1 will detect the obstruction and will be triggered.

[0109] Furthermore, the laser diffuse reflection sensor 102-1 is of NPN or PNP type; The above technical solution makes the laser diffuse reflection sensor 102-1 more reasonable; When the laser diffuse reflection sensor 102-1 is of NPN type and the laser diffuse reflection sensor signal output terminal 102-11 is normally open, the laser diffuse reflection sensor 102-11 is in a high impedance state when it is not triggered. When the laser diffuse reflection sensor 102-1 is triggered, its laser diffuse reflection sensor signal output terminal 102-11 outputs a low level, that is, outputs 0V. At this time, the laser diffuse reflection sensor 102-1 is the case where the output of its signal output terminal 104 changes from a non-low level to a low level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When the laser diffuse reflection sensor 102-1 is of type PNP and the laser diffuse reflection sensor signal output terminal 102-11 is normally open, the laser diffuse reflection sensor 102-11 is in a high-impedance state when it is not triggered. When the laser diffuse reflection sensor 102-1 is triggered, its laser diffuse reflection sensor signal output terminal 102-11 outputs a high level, i.e., 24V. At this time, the output of the laser diffuse reflection sensor 102-1 at its signal output terminal 104 changes from a non-high level to a high level when the detection unit 1 detects an abnormality in the fabric rolling mechanism.

[0110] When the laser diffuse reflection sensor 102-1 is of NPN type and the laser diffuse reflection sensor signal output terminal 102-11 is normally closed, the laser diffuse reflection sensor 102-11 outputs a low level, i.e., 0V, when the laser diffuse reflection sensor 102-1 is not triggered. When the laser diffuse reflection sensor 102-1 is triggered, its laser diffuse reflection sensor signal output terminal 102-11 is in a high impedance state. At this time, the laser diffuse reflection sensor 102-1 is the case where the output of its signal output terminal 104 changes from low level to non-low level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When the laser diffuse reflection sensor 102-1 is of type PNP and the laser diffuse reflection sensor signal output terminal 102-11 is normally closed, the laser diffuse reflection sensor 102-11 outputs a high level, i.e., 24V, when the laser diffuse reflection sensor 102-1 is not triggered. When the laser diffuse reflection sensor 102-1 is triggered, its laser diffuse reflection sensor signal output terminal 102-11 is in a high impedance state. At this time, the laser diffuse reflection sensor 102-1 is the case where the output of its signal output terminal 104 changes from high level to non-high level when the detection unit 1 detects an abnormality in the fabric rolling mechanism.

[0111] Furthermore, the second power supply unit 5 adopts a switching power supply.

[0112] The above technical solution makes the abnormal alarm circuit of the fabric rolling mechanism more reasonable. Since the laser diffuse reflection sensor 102-1 consumes a lot of power during operation, the second power supply unit 5 adopts a switching power supply to ensure relatively stable power supply and avoid the problem of rapid battery consumption caused by using batteries.

[0113] Furthermore, when the first power supply unit 4 uses a battery, the laser diffuse reflection sensor 102-1 needs to control the wireless transmitting unit 2 to be in a power-off state or a power-on state through the auxiliary relay 6, or control the connection and disconnection between the first switch terminal 201 and the second switch terminal 202 of the wireless transmitting unit 2 through the switch on / off relay 7.

[0114] By adopting the above technical solution, the abnormal alarm circuit of the fabric rolling mechanism is made more reasonable. Since the laser diffuse reflection sensor 102-1 needs to be powered by a switching power supply, and the first power unit 4 uses a battery, that is, the first power unit 4 and the second power unit 5 are different power sources, the laser diffuse reflection sensor 102-1 needs to control the wireless transmission unit 2 through the auxiliary relay 6 in order to form a loop.

[0115] Furthermore, the fabric cutting knife abnormality detection unit 103 includes a micro switch 103-1 for being triggered when the fabric cutting knife malfunctions.

[0116] By adopting the above technical solution, the fabric cutting knife abnormality detection unit 103 is more reasonable. Generally, it is set on the fabric cutting knife. When the fabric cutting knife does not malfunction, the fabric will not press down to trigger the micro switch 103-1. When the fabric cutting knife malfunctions, the fabric will press down to trigger the micro switch 103-1.

[0117] Furthermore, one end of the micro switch 103-1 is connected to the positive or negative terminal of the second power supply unit 5, and the other end of the micro switch 103-1 is formed as the signal output terminal 104 of the detection unit 1.

[0118] The above technical solution makes the micro switch 103-1 more reasonable; When one end of the micro switch 103-1 is connected to the negative terminal of the second power supply unit 5 and the micro switch 103-1 is normally open, the other end of the micro switch 103-1 is in a high-impedance state when it is not triggered, and the other end of the micro switch 103-1 outputs a low level, i.e., 0V, when it is triggered. At this time, the micro switch 103-1 is the case where the output of the signal output terminal 104 of the detection unit 1 changes from a non-low level to a low level when it detects an abnormality in the fabric rolling mechanism. When one end of the micro switch 103-1 is connected to the positive terminal of the second power supply unit 5 and the micro switch 103-1 is normally open, the other end of the micro switch 103-1 is in a high-impedance state when it is not triggered. When the micro switch 103-1 is triggered, the other end outputs a high level, that is, outputs 24V. At this time, the micro switch 103-1 is the case where the output of the signal output terminal 104 of the detection unit 1 changes from a non-high level to a high level when it detects an abnormality in the fabric rolling mechanism. When one end of the micro switch 103-1 is connected to the negative terminal of the second power supply unit 5 and the micro switch 103-1 is normally closed, the other end of the micro switch 103-1 outputs a low level, i.e., 0V, when the micro switch 103-1 is not triggered. When the micro switch 103-1 is triggered, the other end is in a high impedance state. At this time, the micro switch 103-1 is the case where the output of the signal output terminal 104 of the detection unit 1 changes from low level to non-low level when the detection unit 1 detects an abnormality in the fabric rolling mechanism. When one end of the micro switch 103-1 is connected to the positive terminal of the second power supply unit 5 and the micro switch 103-1 is normally closed, the other end of the micro switch 103-1 outputs a high level, i.e., 24V, when the micro switch 103-1 is not triggered. When the micro switch 103-1 is triggered, the other end is in a high impedance state. At this time, the micro switch 103-1 is the case where the output of the signal output terminal 104 of the detection unit 1 changes from a high level to a non-high level when the detection unit 1 detects an abnormality in the fabric rolling mechanism.

[0119] Furthermore, the wireless receiving unit 3 has a first conducting terminal 301 and a second conducting terminal 302; The abnormal handling triggering line 8 includes a first signal output terminal 801 and an abnormal handling signal input terminal 802. The first signal output terminal 801 is connected to the first conducting terminal 301, and the abnormal handling signal input terminal 802 is connected to the second conducting terminal 302. If the abnormality processing signal input terminal 802 receives a signal output from the first signal output terminal 801 and triggers abnormality processing, and does not trigger abnormality processing if the abnormality processing signal input terminal 802 does not receive a signal output from the first signal output terminal 801, then in the state where the wireless receiving unit 3 does not receive an abnormal signal sent by the wireless transmitting unit 2 or receives a normal signal sent by the wireless transmitting unit 2, the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are not connected; in the state where the wireless receiving unit 3 receives an abnormal signal sent by the wireless transmitting unit 2 or does not receive a normal signal sent by the wireless transmitting unit 2, the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are connected. If the abnormality handling signal input terminal 802 does not trigger abnormality handling when it receives the signal output by the first signal output terminal 801, and triggers abnormality handling when it does not receive the signal output by the first signal output terminal 801, then the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are connected when the wireless receiving unit 3 does not receive the abnormal signal sent by the wireless transmitting unit 2 or receives the normal signal sent by the wireless transmitting unit 2; when the wireless receiving unit 3 receives the abnormal signal sent by the wireless transmitting unit 2 or does not receive the normal signal sent by the wireless transmitting unit 2, the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are not connected.

[0120] By adopting the above technical solution, the setting of the wireless receiving unit 3 is more reasonable. The wireless receiving unit 3 controls whether its first conducting terminal 301 and second conducting terminal 302 are connected to realize whether to trigger abnormal processing. Normally, when the abnormality processing signal input terminal 802 receives a signal output from the first signal output terminal 801, abnormality processing is triggered; when the abnormality processing signal input terminal 802 does not receive a signal output from the first signal output terminal 801, abnormality processing is not triggered. In this case, when the wireless receiving unit 3 does not receive an abnormal signal sent by the wireless transmitting unit 2 or receives a normal signal sent by the wireless transmitting unit 2, the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are not connected; when the wireless receiving unit 3 receives an abnormal signal sent by the wireless transmitting unit 2, the first conducting terminal 301 and the second conducting terminal 302 of the wireless receiving unit 3 are connected.

[0121] Furthermore, the wireless receiving unit 3 is powered by an external power supply 100, with the positive terminal of the wireless receiving unit 3 connected to the positive terminal of the external power supply 100 and the negative terminal of the wireless receiving unit 3 connected to the negative terminal of the external power supply 100.

[0122] By adopting the above technical solution, the configuration of the wireless receiving unit 3 becomes more reasonable.

[0123] Furthermore, the fabric rolling mechanism is applied to a large circular knitting machine, and the external power supply 100 is the power supply in the main control circuit of the large circular knitting machine.

[0124] By adopting the above technical solution, the abnormal alarm circuit structure of the fabric rolling mechanism becomes more reasonable.

[0125] Furthermore, the abnormality handling is a shutdown operation. The first signal output terminal 801 is the alarm signal output terminal on the large circular knitting machine, and the abnormality handling signal input terminal 802 is the alarm shutdown input terminal on the large circular knitting machine controller. Specifically, the alarm signal output terminal on the large circular knitting machine is the 0V or 24V power supply on the large circular knitting machine.

[0126] By adopting the above technical solution, the abnormal handling operation is made more reasonable, and the shutdown can avoid equipment damage, thereby reducing losses. Since the fabric winding mechanism is used in the circular knitting machine, the fabric winding mechanism will cooperate with other mechanisms of the circular knitting machine. The first signal output terminal 801 is the alarm signal output terminal on the circular knitting machine, and the abnormal handling signal input terminal 802 is the alarm shutdown input terminal on the controller of the circular knitting machine. This makes the settings of the first signal output terminal 801 and the abnormal handling signal input terminal 802 more reasonable. When the abnormal alarm circuit of the fabric winding mechanism detects an abnormality, it triggers the abnormal triggering circuit on the circular knitting machine, and the controller of the circular knitting machine performs overall abnormal handling.

[0127] Furthermore, the wireless transmitting unit 2 and the wireless receiving unit 3 communicate with each other through omnidirectional wireless communication technology. Specifically, the wireless transmitting unit 2 and the wireless receiving unit 3 communicate with each other through radio frequency technology.

[0128] By adopting the above technical solution, the communication between the wireless transmitting unit 2 and the wireless receiving unit 3 becomes more reliable and stable. The signal transmitted by the wireless transmitting unit 2 propagates in all directions, so there is no need for the wireless transmitting unit 2 and the wireless receiving unit 3 to keep their lines of sight in order to achieve communication.

[0129] Furthermore, the wireless receiving unit 3 includes a wireless receiving module 303 and a wireless receiving unit relay 304. The two ends of the contact switch on the wireless receiving unit relay 304 are formed as the first conducting end 301 and the second conducting end 302. The wireless receiving module 303 can wirelessly communicate with the wireless transmitting unit 2 and control the energization and de-energization of the coil of the wireless receiving unit relay 304 according to the received signal.

[0130] By adopting the above technical solution, the wireless receiving unit 3 becomes more reasonable.

[0131] A large circular knitting machine fabric winding mechanism includes the aforementioned fabric winding mechanism abnormal alarm circuit.

[0132] By adopting the above technical solution, the fabric winding mechanism of the large circular knitting machine is made more reasonable, enabling the large circular knitting machine to reliably and stably detect the reverse winding of the fabric and handle abnormalities, effectively avoiding equipment damage caused by abnormalities in the fabric winding mechanism.

[0133] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0134] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An alarm circuit for a fabric rolling mechanism, used in a fabric rolling mechanism, characterized in that: include: The unit includes a detection unit (1), a wireless transmission unit (2), and a wireless receiving unit (3). The detection unit (1) is used to detect whether the fabric rolling mechanism is abnormal. The detection unit (1) is connected to the wireless transmission unit (2) and controls the wireless transmission unit (2) to transmit abnormal signals or normal signals based on its detection results. The wireless receiving unit (3) is wirelessly connected to the wireless transmitting unit (2). When the wireless receiving unit (3) does not receive an abnormal signal sent by the wireless transmitting unit (2) or receives a normal signal sent by the wireless transmitting unit (2), the wireless receiving unit (3) does not trigger the abnormal processing of the fabric rolling mechanism. When the wireless receiving unit (3) receives an abnormal signal sent by the wireless transmitting unit (2) or does not receive a normal signal sent by the wireless transmitting unit (2), the wireless receiving unit (3) triggers the abnormal processing of the fabric rolling mechanism.

2. The abnormal alarm circuit for the fabric rolling mechanism according to claim 1, characterized in that: The detection unit (1) includes at least one of the following: a reverse roll detection unit (101) for detecting whether the roll mechanism has a reverse roll abnormality, a drop detection unit (102) for detecting whether the roll mechanism has a drop abnormality, and a cutter abnormality detection unit (103) for detecting whether the cutter in the roll mechanism is abnormal.

3. The abnormal alarm circuit for the fabric rolling mechanism according to claim 2, characterized in that: It includes a first power supply unit (4) for powering the wireless transmitting unit (2) and a second power supply unit (5) for powering the detection unit (1). The first power supply unit (4) uses a battery or a switching power supply; The second power supply unit (5) uses a battery or a switching power supply; The first power supply unit (4) and the second power supply unit (5) are configured to use the same power supply or to use different power supplies.

4. The abnormal alarm circuit for the fabric rolling mechanism according to claim 3, characterized in that: When the wireless transmitting unit (2) is in a power-off state, the wireless transmitting unit (2) does not transmit abnormal signals to the wireless receiving unit (3); when the wireless transmitting unit (2) is in a power-on state, the wireless transmitting unit (2) transmits abnormal signals to the wireless receiving unit (3). Alternatively, if the wireless transmitting unit (2) is in a power-off state, the wireless transmitting unit (2) will not transmit a normal signal to the wireless receiving unit (3); if the wireless transmitting unit (2) is in a power-on state, the wireless transmitting unit (2) will transmit a normal signal to the wireless receiving unit (3). The detection unit (1) is used to control the wireless transmission unit (2) to be in a power-off state or a power-on state.

5. The abnormal alarm circuit for the fabric rolling mechanism according to claim 4, characterized in that: The detection unit (1) has a signal output terminal (104); the detection unit (1) directly controls the wireless transmitting unit (2) to be in a power-off state or a power-on state through its own signal output terminal (104), or the detection unit (1) controls the wireless transmitting unit (2) to be in a power-off state or a power-on state through an auxiliary relay (6); When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-low level to a low level. The detection unit (1) directly controls the wireless transmission unit (2) to be in a power-off state or a power-on state through its own signal output terminal (104). When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, the positive terminal of the wireless transmission unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmission unit (2) is connected to the signal output terminal (104) of the detection unit (1). The first power supply unit (4) and the second power supply unit (5) are configured to use the same power supply. When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-low level to a low level. The detection unit (1) controls the wireless transmission unit (2) to be in a power-off state or a power-on state through the auxiliary relay (6). When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay (6) is connected to the positive terminal of the second power supply unit (5), and the other end of the coil of the auxiliary relay (6) is connected to the signal output terminal (104) of the detection unit (1). The positive terminal of the wireless transmission unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmission unit (2) is connected to the negative terminal of the first power supply unit (4). The normally open switch of the auxiliary relay (6) is connected in series between the positive terminal of the wireless transmission unit (2) and the positive terminal of the first power supply unit (4) and / or in series between the negative terminal of the wireless transmission unit (2) and the negative terminal of the first power supply unit (4). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-high level to a high level. The detection unit (1) directly controls the wireless transmission unit (2) to be in a power-off state or a power-on state through its own signal output terminal (104). When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, the negative terminal of the wireless transmission unit (2) is connected to the negative terminal of the first power supply unit (4), and the positive terminal of the wireless transmission unit (2) is connected to the signal output terminal (104) of the detection unit (1). The first power supply unit (4) and the second power supply unit (5) are configured to use the same power supply. When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-high level to a high level. The detection unit (1) controls the wireless transmission unit (2) to be in a power-off state or a power-on state through the auxiliary relay (6). When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay (6) is connected to the negative terminal of the second power supply unit (5), and the other end of the coil of the auxiliary relay (6) is connected to the signal output terminal (104) of the detection unit (1). The positive terminal of the wireless transmission unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmission unit (2) is connected to the negative terminal of the first power supply unit (4). The normally open switch of the auxiliary relay (6) is connected in series between the positive terminal of the wireless transmission unit (2) and the positive terminal of the first power supply unit (4) and / or in series between the negative terminal of the wireless transmission unit (2) and the negative terminal of the first power supply unit (4). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from low level to non-low level. The detection unit (1) controls the wireless transmission unit (2) to be in a power-off state or a power-on state through the auxiliary relay (6). When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay (6) is connected to the positive terminal of the second power supply unit (5), and the other end of the coil of the auxiliary relay (6) is connected to the signal output terminal (104) of the detection unit (1). The positive terminal of the wireless transmission unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmission unit (2) is connected to the negative terminal of the first power supply unit (4). The normally closed switch of the auxiliary relay (6) is connected in series between the positive terminal of the wireless transmission unit (2) and the positive terminal of the first power supply unit (4) and / or in series between the negative terminal of the wireless transmission unit (2) and the negative terminal of the first power supply unit (4). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from high level to non-high level. The detection unit (1) controls the wireless transmitting unit (2) to be in a power-off state or a power-on state through the auxiliary relay (6). When the wireless transmitting unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the auxiliary relay (6) is connected to the negative terminal of the second power supply unit (5), and the other end of the coil of the auxiliary relay (6) is connected to the signal output terminal (104) of the detection unit (1). The positive terminal of the wireless transmitting unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmitting unit (2) is connected to the negative terminal of the first power supply unit (4). The normally closed switch of the auxiliary relay (6) is connected in series between the positive terminal of the wireless transmitting unit (2) and the positive terminal of the first power supply unit (4) and / or in series between the negative terminal of the wireless transmitting unit (2) and the negative terminal of the first power supply unit (4).

6. The fabric rolling mechanism abnormality alarm circuit according to claim 3, characterized in that: The wireless transmitting unit (2) has a first switch terminal (201) and a second switch terminal (202). When the first switch terminal (201) and the second switch terminal (202) of the wireless transmitting unit (2) are not connected, the wireless transmitting unit (2) does not transmit abnormal signals to the wireless receiving unit (3). When the first switch terminal (201) and the second switch terminal (202) of the wireless transmitting unit (2) are connected, the wireless transmitting unit (2) transmits abnormal signals to the wireless receiving unit (3). Alternatively, if the first switch terminal (201) and the second switch terminal (202) of the wireless transmitting unit (2) are not connected, the wireless transmitting unit (2) transmits a normal signal to the wireless receiving unit (3); if the first switch terminal (201) and the second switch terminal (202) of the wireless transmitting unit (2) are connected, the wireless transmitting unit (2) does not transmit a normal signal to the wireless receiving unit (3). The detection unit (1) is used to control the connection and disconnection between the first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2).

7. The fabric rolling mechanism abnormality alarm circuit according to claim 6, characterized in that: The detection unit (1) has a signal output terminal (104); the detection unit (1) controls the connection and disconnection between the first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2) through the switch on / off relay (7); The positive terminal of the wireless transmitting unit (2) is connected to the positive terminal of the first power supply unit (4), and the negative terminal of the wireless transmitting unit (2) is connected to the negative terminal of the first power supply unit (4). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-low level to a low level. When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay (7) is connected to the positive terminal of the second power supply unit (5), and the other end of the coil of the switch relay (7) is connected to the signal output terminal (104) of the detection unit (1). The first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2) are connected through the normally open switch of the switch relay (7). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from a non-high level to a high level. When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay (7) is connected to the negative terminal of the second power supply unit (5), and the other end of the coil of the switch relay (7) is connected to the signal output terminal (104) of the detection unit (1). The first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2) are connected through the normally open switch of the switch relay (7). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from low level to non-low level. When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the switch relay (7) is connected to the positive terminal of the second power supply unit (5), and the other end of the coil of the switch relay (7) is connected to the signal output terminal (104) of the detection unit (1). The first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2) are connected through the normally closed switch of the switch relay (7). When the detection unit (1) detects an abnormality in the fabric rolling mechanism, the output of its signal output terminal (104) changes from high level to non-high level. When the wireless transmission unit (2) is used to determine whether to transmit an abnormal signal, one end of the coil of the switch on / off relay (7) is connected to the negative terminal of the second power supply unit (5), and the other end of the coil of the switch on / off relay (7) is connected to the signal output terminal (104) of the detection unit (1). The first switch terminal (201) and the second switch terminal (202) of the wireless transmission unit (2) are connected through the normally closed switch of the switch on / off relay (7).

8. The fabric rolling mechanism abnormality alarm circuit according to claim 2, characterized in that: The reverse roll detection unit (101) is used to detect whether the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value. When the reverse roll detection unit (101) detects that the lateral displacement distance of the roll roller does not reach or exceed the predetermined value, the roll mechanism does not have a reverse roll abnormality. When the reverse roll detection unit (101) detects that the lateral displacement distance of the roll roller reaches or exceeds the predetermined value, the roll mechanism has a reverse roll abnormality.

9. The fabric rolling mechanism abnormality alarm circuit according to claim 8, characterized in that: The reverse roll fabric detection unit (101) is provided in multiple ways, and there are two reverse roll fabric detection units (101) respectively used to detect whether the lateral displacement distance at both ends of the roll fabric roller in the length direction reaches or exceeds a predetermined value. The two reverse roll detection units (101) for detecting the two ends of the roll roll in the length direction are respectively set at corresponding positions at both ends of the roll roll in the length direction.

10. The fabric rolling mechanism abnormality alarm circuit according to any one of claims 4 to 7, characterized in that: The reverse roll detection unit (101) includes a proximity switch (101-1) that is triggered when the lateral displacement distance of the roll roller in the roll mechanism reaches or exceeds a predetermined value. The positive terminal of the proximity switch (101-1) is connected to the positive terminal of the second power supply unit (5), and the negative terminal of the proximity switch (101-1) is connected to the negative terminal of the second power supply unit (5). The proximity switch signal output terminal (101-11) of the proximity switch (101-1) is the signal output terminal (104) of the detection unit (1). The proximity switch (101-1) is of NPN or PNP type.

11. The fabric rolling mechanism abnormality alarm circuit according to any one of claims 4 to 7, characterized in that: The fabric drop detection unit (102) includes a laser diffuse reflection sensor (102-1) that is triggered when fabric drops occur. The positive terminal of the laser diffuse reflection sensor (102-1) is connected to the positive terminal of the second power supply unit (5), and the negative terminal of the laser diffuse reflection sensor (102-1) is connected to the negative terminal of the second power supply unit (5). The laser diffuse reflection sensor signal output terminal (102-11) of the laser diffuse reflection sensor (102-1) is the signal output terminal (104) of the detection unit (1). The laser diffuse reflection sensor (102-1) is of NPN or PNP type; The second power supply unit (5) adopts a switching power supply; When the first power supply unit (4) uses a battery, the laser diffuse reflection sensor (102-1) needs to control the wireless transmitting unit (2) to be in a power-off state or a power-on state through an auxiliary relay (6), or control the connection and disconnection between the first switch terminal (201) and the second switch terminal (202) of the wireless transmitting unit (2) through a switch on / off relay (7).

12. The fabric rolling mechanism abnormality alarm circuit according to any one of claims 4 to 7, characterized in that: The fabric cutting knife abnormality detection unit (103) includes a micro switch (103-1) for being triggered when the fabric cutting knife is abnormal. One end of the micro switch (103-1) is connected to the positive or negative terminal of the second power supply unit (5), and the other end of the micro switch (103-1) is formed as the signal output terminal (104) of the detection unit (1).

13. The fabric rolling mechanism abnormality alarm circuit according to claim 1, characterized in that: The wireless receiving unit (3) has a first conducting terminal (301) and a second conducting terminal (302). The abnormal handling trigger line (8) includes a first signal output terminal (801) and an abnormal handling signal input terminal (802). The first signal output terminal (801) is connected to the first conducting terminal (301), and the abnormal handling signal input terminal (802) is connected to the second conducting terminal (302). If the abnormal processing signal input terminal (802) receives a signal output from the first signal output terminal (801) and triggers abnormal processing, and does not trigger abnormal processing if the abnormal processing signal input terminal (802) does not receive a signal output from the first signal output terminal (801), then the first conducting terminal (301) and the second conducting terminal (302) of the wireless receiving unit (3) are not connected when the wireless receiving unit (3) receives an abnormal signal sent by the wireless transmitting unit (2) or receives a normal signal sent by the wireless transmitting unit (2); when the wireless receiving unit (3) receives an abnormal signal sent by the wireless transmitting unit (2) or does not receive a normal signal sent by the wireless transmitting unit (2), the first conducting terminal (301) and the second conducting terminal (302) of the wireless receiving unit (3) are connected. If the abnormal processing signal input terminal (802) does not trigger abnormal processing when it receives the signal output by the first signal output terminal (801), and triggers abnormal processing when it does not receive the signal output by the first signal output terminal (801), then the first conducting terminal (301) and the second conducting terminal (302) of the wireless receiving unit (3) are connected when the wireless receiving unit (3) does not receive the abnormal signal sent by the wireless transmitting unit (2) or receives the normal signal sent by the wireless transmitting unit (2); the first conducting terminal (301) and the second conducting terminal (302) of the wireless receiving unit (3) are not connected when the wireless receiving unit (3) receives the abnormal signal sent by the wireless transmitting unit (2) or does not receive the normal signal sent by the wireless transmitting unit (2). The wireless receiving unit (3) is powered by an external power supply (100). The positive terminal of the wireless receiving unit (3) is connected to the positive terminal of the external power supply (100), and the negative terminal of the wireless receiving unit (3) is connected to the negative terminal of the external power supply (100). The fabric rolling mechanism is applied to a large circular knitting machine, and the external power supply (100) is the power supply in the main control circuit of the large circular knitting machine; The abnormality handling is a shutdown operation. The first signal output terminal (801) is the alarm signal output terminal on the large circular knitting machine, and the abnormality handling signal input terminal (802) is the alarm shutdown input terminal on the large circular knitting machine controller. The wireless transmitting unit (2) and the wireless receiving unit (3) communicate with each other through omnidirectional wireless communication technology; The wireless receiving unit (3) includes a wireless receiving module (303) and a wireless receiving unit relay (304). The two ends of the contact switch on the wireless receiving unit relay (304) are formed as the first conducting end (301) and the second conducting end (302). The wireless receiving module (303) can wirelessly communicate with the wireless transmitting unit (2) and control the energization and de-energization of the coil of the wireless receiving unit relay (304) according to the received signal.

14. A fabric winding mechanism for a large circular knitting machine, characterized in that: Includes the fabric rolling mechanism abnormal alarm circuit as described in any one of claims 1 to 13.

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