Roving blocking system and yarn cutting box

Abstract

The present invention discloses a roving blocking device system and a yarn cutting box, which relate to the technical field of spinning. The roving blocking device system comprises: a main control module; at least two roving blocking device bodies; at least two signal transmission modules, which are arranged on at least two roving blocking device bodies in a one-to-one correspondence; the main control module and the at least two signal transmission modules are connected in sequence through a serial connection; the main control module is at least used to output a control signal to each signal transmission module through serial communication; each signal transmission module is used to control the corresponding roving blocking device body to perform a yarn break detection operation and / or a roving blocking operation corresponding to the received control signal. The roving blocking device system disclosed by the present invention can solve the technical problems that the current signal transmission structure used for the roving blocking device is not convenient to install and has a high material cost.

Description

Technical Field

[0001] The invention belongs to the technical field of spinning, and in particular relates to a roving blocking device system and a roving cutting box. Background Art

[0002] The manufacturing process of yarn includes the conversion from coarse yarn to fine yarn. To prevent the yarn breakage problem that may occur during the conversion process, the spinning equipment is usually equipped with a coarse yarn blocking device. The coarse yarn blocking device uses a sensor to detect whether the fine yarn is broken; when the fine yarn is broken, the coarse yarn blocking device uses a corresponding mechanism to prevent the coarse yarn from continuing to be fed, thereby blocking the coarse yarn, thereby reducing the waste of coarse yarn raw materials and avoiding flying flowers.

[0003] A spinning device is usually equipped with multiple roving blocking devices. In the prior art, each roving blocking device needs to be individually connected to a long strip of yarn cutting board, so that the main control module can exchange signals with each roving blocking device through the yarn cutting board. This structure is extremely inconvenient to install and has high material costs, which makes it difficult to improve production efficiency and keeps production costs high. Summary of the invention

[0004] The object of the present invention is to provide a roving blocking device system, aiming to solve the technical problems that the current signal transmission structure used for the roving blocking device is inconvenient to install and has a high material cost.

[0005] In order to achieve the purpose, the technical solution adopted by the present invention is as follows:

[0006] A roving blocking device system, the roving blocking device system comprising:

[0007] Main control module;

[0008] at least two roving blocking device bodies;

[0009] At least two signal transmission modules are arranged on at least two of the roving blocking device bodies in a one-to-one correspondence; the main control module and the at least two signal transmission modules are connected in sequence in a serial connection manner;

[0010] The main control module is at least used to output a control signal to each of the signal transmission modules via serial communication; each of the signal transmission modules is used to control the corresponding roving blocking device body to perform a yarn break detection operation and / or a roving blocking operation corresponding to the received control signal.

[0011] Furthermore, each of the signal transmission modules is used to output a feedback signal to the main control module via serial communication.

[0012] Furthermore, the signal transmission module has a clock adjustment input terminal and a clock adjustment output terminal; wherein:

[0013] The clock adjustment input end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the clock adjustment input end of each of the remaining signal transmission modules is electrically connected to the clock adjustment output end of another signal transmission module close to one side of the main control module;

[0014] The main control module is used to output the clock signal to the clock adjustment input terminal of each of the signal transmission modules through serial communication;

[0015] Each of the signal transmission modules is used for shifting the currently received control signal along a serial connection path to another signal transmission module away from the main control module each time the clock signal is received.

[0016] Furthermore, the signal transmission module directly connected to the main control module is used to output the currently received feedback signal to the main control module each time the clock signal is received; and each of the remaining signal transmission modules is used to shift the currently received feedback signal along the serial connection path to another signal transmission module close to one side of the main control module each time the clock signal is received.

[0017] Furthermore, the signal transmission module has a switch trigger input terminal and a switch trigger output terminal; wherein:

[0018] The switch trigger input end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the switch trigger input end of each of the remaining signal transmission modules is electrically connected to the switch trigger output end of another signal transmission module close to one side of the main control module;

[0019] The main control module is used to output a trigger signal to the switch trigger input terminal of each of the signal transmission modules through serial communication;

[0020] Each of the signal transmission modules is used to control the corresponding roving blocking device body to perform a yarn breakage detection operation and / or a roving blocking operation corresponding to the currently received control signal when receiving the trigger signal.

[0021] Furthermore, each of the signal transmission modules is used to output the feedback signal to the main control module through serial communication after receiving the trigger signal.

[0022] Further, the signal transmission module has a forward input terminal, a forward output terminal, a backward input terminal and a backward output terminal; the forward input terminal is used to receive the control signal, the forward output terminal is used to output the control signal, the backward input terminal is used to receive the feedback signal, and the backward output terminal is used to output the feedback signal; wherein:

[0023] The forward input end and the backward output end of the signal transmission module directly connected to the main control module are electrically connected to the main control module;

[0024] The forward input end of each of the remaining signal transmission modules is electrically connected to the forward output end of another signal transmission module close to the main control module, and the backward output end of each of the remaining signal transmission modules is electrically connected to the backward input end of another signal transmission module close to the main control module.

[0025] Furthermore, the signal transmission module includes a first rising edge D trigger; wherein:

[0026] The forward input terminal is electrically connected to the first data input terminal of the first rising edge D flip-flop, the clock adjustment input terminal is electrically connected to the clock adjustment output terminal and the first clock port of the first rising edge D flip-flop respectively, and the forward output terminal is electrically connected to the first data output terminal of the first rising edge D flip-flop.

[0027] Furthermore, the signal transmission module includes a power supply terminal, a power supply circuit, a switch circuit and a first NAND gate circuit; wherein:

[0028] The power supply end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the power supply end of each of the remaining signal transmission modules is electrically connected to the power supply end of the adjacent signal transmission module;

[0029] The main control module is used to output the power supply signal to the power supply end of each signal transmission module through a serial connection;

[0030] The first data output terminal is electrically connected to the first input terminal of the first NAND gate circuit, the switch trigger input terminal is electrically connected to the switch trigger output terminal and the second input terminal of the first NAND gate circuit respectively, the output terminal of the first NAND gate circuit is electrically connected to the enable terminal of the switch circuit, the switch circuit is electrically connected to the power supply circuit, and the power supply terminal is electrically connected to the power supply circuit;

[0031] The switch circuit is used to control the power supply circuit to be turned on when the switch trigger input terminal receives the trigger signal. The power supply circuit is used to drive the corresponding roving blocking device body to perform a roving blocking operation through the received power supply signal when turned on.

[0032] Furthermore, the switch circuit includes a first inverter, a first follower and a first NMOS tube, and the power supply circuit includes a first diode, a first inductor and a first ground terminal; wherein:

[0033] The input end of the first inverter is electrically connected to the output end of the first NAND gate circuit, the input end of the first follower is electrically connected to the output end of the first inverter, the output end of the first follower is electrically connected to the gate of the first NMOS tube, the power supply end is electrically connected to the cathode of the first diode and one end of the first inductor respectively, the anode of the first diode and the other end of the first inductor are electrically connected to the drain of the first NMOS tube, and the source of the first NMOS tube is electrically connected to the first ground end.

[0034] Furthermore, the signal transmission module includes a second rising edge D trigger; wherein:

[0035] The backward input terminal is electrically connected to the second data input terminal of the second rising edge D flip-flop, the clock adjustment input terminal is electrically connected to the second clock port of the second rising edge D flip-flop, and the backward output terminal is electrically connected to the second data output terminal of the second rising edge D flip-flop.

[0036] Correspondingly, the present invention further proposes a yarn cutting box, which is installed on the roving blocking device body, and is characterized in that the yarn cutting box includes the signal transmission module as mentioned above.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The coarse yarn blocking device system proposed in the present invention adopts a serial connection method in an innovative way. The main control module can transmit the control signal to the signal transmission module corresponding to each coarse yarn blocking device body through serial communication without the aid of a yarn cutting plate. Therefore, while realizing the control of multiple coarse yarn blocking device bodies, the material cost of accessories such as yarn cutting plates and cables and the manpower and time cost spent in the installation process are saved, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0040] Figure 1 It is a structural schematic diagram of an embodiment of a roving blocking device system of the present invention;

[0041] Figure 2 It is a structural schematic diagram of another embodiment of the roving blocking device system of the present invention;

[0042] Figure 3 It is a schematic diagram of the connection structure of the roving blocking device in the prior art;

[0043] Figure 4 It is a connection diagram of an embodiment of a roving blocking device system of the present invention;

[0044] Figure 5 It is a schematic diagram of the internal circuit structure of the roving blocking device body in the roving blocking device system of the present invention;

[0045] Figure 6 It is a schematic diagram of the connection structure of a D flip-flop;

[0046] Figure 7 It is a schematic diagram of the structure of the first rising edge D trigger in the roving blocking device system of the present invention;

[0047] Figure 8 It is a connection diagram of a plurality of first rising edge D flip-flops in the roving blocking device system of the present invention;

[0048] Fig. 9 It is a schematic diagram of the structure of the second rising edge D flip-flop in the roving blocking device system of the present invention;

[0049] Fig.10 It is a connection diagram of a plurality of second rising edge D flip-flops in the roving blocking device system of the present invention;

[0050] Fig.11 It is a simulation waveform diagram of the roving blocking device system of the present invention.

[0051] Description of Figure Numbers:

[0052] Label name Label name 1 Main control module 23 The first NAND gate circuit 2 Signal transmission module 24 The second NAND gate circuit 3 Yarn cutting board 25 The third NAND gate circuit 4 Roving blocking device body 26 Switching Circuit 21 First positive edge D flip-flop 27 Power supply circuit 22 Second positive edge D flip-flop

[0053] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] Reference Figure 1 and Figure 3 , an embodiment of the present invention provides a roving blocking device system, the roving blocking device system comprising:

[0058] Main control module 1;

[0059] At least two roving blocking device bodies 4;

[0060] At least two signal transmission modules 2 are arranged on at least two roving blocking device bodies 4 in a one-to-one correspondence; the main control module 1 and the at least two signal transmission modules 2 are connected in sequence in a serial connection manner;

[0061] The main control module 1 is at least used to output a control signal to each signal transmission module 2 through serial communication; each signal transmission module 2 is used to control the corresponding roving blocking device body 4 to perform a yarn break detection operation and / or a roving blocking operation corresponding to the received control signal.

[0062] In this embodiment, the signal transmission module 2 is a communication unit provided in the roving blocking device body 4, and the main control module 1 may include a control chip or other device for transmitting signals to the signal transmission module 2, such as Figure 1 As shown, the main control module 1 and each signal transmission module 2 are arranged in sequence and communicated in a serial form (the wireless connection method shown in the figure can be used). The command issued by the main control module 1 (i.e., the control signal, which can be specifically a continuous string) can be output to each signal transmission module 2 through serial communication, specifically, through data shifting (i.e., making the string move one bit in turn along a preset direction within each time pulse) so that the corresponding part of the string is forward transmitted (i.e., moving to the right as shown in the figure) to the corresponding signal transmission module 2, so that each signal transmission module 2 can automatically perform the corresponding operation (including controlling the corresponding coarse yarn blocking device body 4 to open, close and perform the corresponding yarn break detection operation and / or coarse yarn blocking operation) after reading the corresponding string.

[0063] Refer to Figure 3 The prior art shown adopts a parallel connection mode, where the main control module 1 is connected to a long strip of yarn cutting board 3 by communication, and multiple roving blocking device bodies 4 are respectively connected to the yarn cutting board 3 through cables, so that the main control module 1 can transmit the control signal to the corresponding roving blocking device body 4 through the yarn cutting board 3 through parallel communication. It can be seen that compared with the prior art, the technical solution of this embodiment adopts a serial connection mode in a different way. The main control module 1 can transmit the control signal to the corresponding signal transmission module 2 through serial communication without the help of the yarn cutting board 3, thereby saving the material cost of accessories such as the yarn cutting board 3 and cables and the manpower and time cost spent in the installation process under the premise of realizing the control of multiple signal transmission modules 2 and the corresponding roving blocking device body 4, thereby improving the production efficiency.

[0064] Further, refer to Figure 2 In an exemplary embodiment, each signal transmission module 2 is used to output a feedback signal to the main control module 1 through serial communication.

[0065] The feedback signal may include the yarn break detection result of the roving blocking device body 4 at the corresponding position, the execution status of the blocking action of the roving blocking device body 4, the operating parameters of the signal transmission module 2, etc. The feedback signal may be represented and transmitted in the form of a character string. Similar to the main control module 1 outputting the control signal to each signal transmission module 2 through serial communication in the previous embodiment, the feedback signal (specifically, a continuous character string) sent by each signal transmission module 2 is output to the main control module 1 through serial communication, and specifically, the character string can be transmitted backward (i.e., moved to the left in the figure) to the main control module 1 through data shift (i.e., the character string is shifted one bit in sequence along the preset direction in each time pulse), so that the main control module 1 can obtain the real-time status of each signal transmission module 2 and the roving blocking device body 4, and realize the signal interaction between the main control module 1 and each signal transmission module 2 in a convenient and low-cost manner.

[0066] Further, refer to Figure 4 In an exemplary embodiment, the signal transmission module 2 has a forward input terminal SERIN, a forward output terminal SEROUT, a backward input terminal DATAIN and a backward output terminal DATAOUT; the forward input terminal SERIN is used to receive a control signal, the forward output terminal SEROUT is used to output a control signal, the backward input terminal DATAIN is used to receive a feedback signal, and the backward output terminal DATAOUT is used to output a feedback signal; wherein:

[0067] The forward input terminal SERIN and the backward output terminal DATAOUT of the signal transmission module 2 directly connected to the main control module 1 are electrically connected to the main control module 1;

[0068] The forward input terminal SERIN of each remaining signal transmission module 2 is electrically connected to the forward output terminal SEROUT of another signal transmission module 2 close to the main control module 1, and the backward output terminal DATAOUT of each remaining signal transmission module 2 is electrically connected to the backward input terminal DATAIN of another signal transmission module 2 close to the main control module 1.

[0069] Optionally, refer to Figure 4 , the signal transmission module 2 has a clock adjustment input terminal DCLK1 and a clock adjustment output terminal DCLK2; wherein:

[0070] The clock adjustment input terminal DCLK1 of the signal transmission module 2 directly connected to the main control module 1 is electrically connected to the main control module 1; the clock adjustment input terminal DCLK1 of each of the remaining signal transmission modules 2 is electrically connected to the clock adjustment output terminal DCLK2 of another signal transmission module 2 close to the main control module 1;

[0071] The main control module 1 is used to output the clock signal to the clock adjustment input terminal DCLK1 of each signal transmission module 2 through serial communication;

[0072] Each signal transmission module 2 is used for shifting the currently received control signal along the serial connection path to another signal transmission module 2 away from the main control module 1 each time the clock signal is received.

[0073] Optionally, refer to Figure 4 The signal transmission module 2 directly connected to the main control module 1 is used to output the currently received feedback signal to the main control module 1 each time a clock signal is received; each of the remaining signal transmission modules 2 is used to shift the currently received feedback signal along the serial connection path to another signal transmission module 2 close to the main control module 1 each time a clock signal is received.

[0074] It should be understood that the side of the signal transmission module 2 close to the main control module 1 refers to the side of the signal transmission module 2 that is closer to the main control module 1 on the serial connection path, rather than the side of the signal transmission module 2 that is closer to the main control module 1 in terms of spatial placement. If the same expression is involved in the subsequent description, this definition will be used and will not be repeated.

[0075] The clock signal is a square wave pulse signal continuously emitted by the main control module 1 at a preset voltage amplitude and a preset clock frequency, and is used to control when the state in the logic unit is updated. In the specific implementation process, the edge trigger set in the signal transmission module 2 can receive the data output by the front end (i.e., the main control module 1 or the signal transmission module 2 close to the main control module 1) when the clock signal undergoes a certain agreed jump (a positive jump from 0 to 1 or a negative jump from 1 to 0, also known as a rising edge or a falling edge) while the clock signal remains at 1, the clock signal remains at 0, and the clock signal undergoes an unagreed jump, the edge trigger does not receive the data output by the front end. In this way, through multiple agreed jumps of the clock signal, each character in the control signal output by the main control module 1 can be forwarded one by one (i.e., shifted to the right as shown in the figure) to the rear signal transmission module 2, so that the corresponding character string in the control signal reaches the agreed signal transmission module 2 and is received by the signal transmission module 2, thereby controlling the corresponding roving blocking device body 4 to perform the corresponding operation and realize serial communication.

[0076] Similarly, by continuing to use the above-mentioned edge trigger, through multiple agreed jumps of the clock signal, each character in the feedback signal output by each signal transmission module 2 can be transmitted backward one by one (i.e., shifted to the left as shown in the figure) to the front-end signal transmission module 2 until all the character strings reach the main control module 1 and are received by the main control module 1, thereby realizing data interaction between the main control module 1 and each signal transmission module 2 through serial communication.

[0077] It should be noted that in the above statement of "each time a clock signal is received", "clock signal" does not refer to all signals received by the clock adjustment input terminal DCLK1 of each signal transmission module 2, but should be understood as "the effective part of the signal received by the clock adjustment input terminal DCLK1 that can be used to trigger data shifting (such as the part where the agreed jump occurs as mentioned above)", which will not be repeated later.

[0078] Optionally, refer to Figure 4 , the signal transmission module 2 has a switch trigger input terminal R / L 1 and a switch trigger output terminal R / L 2; wherein:

[0079] The switch trigger input terminal R / L 1 of the signal transmission module 2 directly connected to the main control module 1 is electrically connected to the main control module 1; the switch trigger input terminal R / L 1 of each of the remaining signal transmission modules 2 is electrically connected to the switch trigger output terminal R / L 2 of another signal transmission module 2 close to one side of the main control module 1;

[0080] The main control module 1 is used to output a trigger signal to the switch trigger input terminal R / L 1 of each signal transmission module 2 through serial communication;

[0081] Each signal transmission module 2 is used to control the corresponding roving blocking device body 4 to perform a yarn breakage detection operation and / or a roving blocking operation corresponding to the currently received control signal when receiving a trigger signal.

[0082] Optionally, refer to Figure 4 Each signal transmission module 2 is used to output a feedback signal to the main control module 1 through serial communication after receiving a trigger signal.

[0083] The trigger signal can be a corresponding level signal for controlling the power supply of the signal transmission module 2. When the signal transmission module 2 is powered on, it can perform the operation corresponding to the control signal it receives. In this way, the character strings in the control signal output by the main control module 1 can be arranged in sequence based on the data shifting method in the above embodiment (that is, all character strings are shifted to the corresponding signal transmission module 2), and then the trigger signal can be used to trigger each signal transmission module 2 to start at the same time, so that each signal transmission module 2 can synchronously control the corresponding roving blocking device body 4 to start performing the corresponding operation, thereby avoiding the roving blocking device body 4 from erroneously executing when the data transmission is not completed (that is, the character strings are not arranged), thereby improving the reliability of equipment operation.

[0084] Further, refer to Figure 5 In an exemplary embodiment, the signal transmission module 2 includes a first rising edge D flip-flop 21; wherein:

[0085] The forward input terminal SERIN is electrically connected to the first data input terminal D1 of the first rising edge D flip-flop 21, the clock adjustment input terminal DCLK1 is electrically connected to the clock adjustment output terminal DCLK2 and the first clock port of the first rising edge D flip-flop 21 respectively, and the forward output terminal SEROUT is electrically connected to the first data output terminal Q1 of the first rising edge D flip-flop 21.

[0086] The specific structure and principle of the D flip-flop are as follows Figure 6 As shown, based on the characteristics of the NAND gate circuit, when the clock terminal is set to 0, no matter what the input value is, the value of the output terminal will remain unchanged (whatever the value was before, it will remain the same now); when the clock terminal is set to 1, no matter what the input value is, the value of the output terminal is equal to the value of the input terminal. In short, when the rising edge of the clock signal arrives (that is, when the input of the D flip-flop changes from 0 to 1), the value of the output of the D flip-flop will immediately remain consistent with the value of the input; that is, at the moment the rising edge of the clock signal arrives, the output of the D flip-flop will complete a synchronization with the input; in other cases (when the clock signal remains unchanged or when the falling edge arrives), the output of the D flip-flop will not change.

[0087] Based on the above principle, the two D flip-flops can be pressed Figure 7 The first rising edge D flip-flop 21 is connected in the manner shown in FIG. Figure 8 In this way, the control signal can be transmitted forward through each rising edge of the clock signal (i.e., each time a rising edge arrives, the string of 0s and 1s contained in the control signal is moved to the right as shown in the figure to the first rising edge D flip-flop 21 of the next bit), so as to achieve the effect of shifting the data bit by bit until the complete string is arranged on all the first rising edge D flip-flops 21.

[0088] Optionally, refer to Figure 5 The signal transmission module 2 includes a power supply terminal, a power supply circuit 27, a switch circuit 26 and a first NAND gate circuit 23; wherein:

[0089] The power supply end of the signal transmission module 2 directly connected to the main control module 1 is electrically connected to the main control module 1; the power supply end of each of the remaining signal transmission modules 2 is electrically connected to the power supply end of the adjacent signal transmission module 2;

[0090] The main control module 1 is used to output the power supply signal to the power supply end of each signal transmission module 2 through a serial connection;

[0091] The first data output terminal Q1 is electrically connected to the first input terminal of the first NAND gate circuit 23, the switch trigger input terminal R / L1 is electrically connected to the switch trigger output terminal R / L2 and the second input terminal of the first NAND gate circuit 23 respectively, the output terminal of the first NAND gate circuit 23 is electrically connected to the enable terminal of the switch circuit 26, the switch circuit 26 is electrically connected to the power supply circuit 27, and the power supply terminal is electrically connected to the power supply circuit 27;

[0092] The switch circuit 26 is used to control the power supply circuit 27 to be turned on when the switch trigger input terminal R / L1 receives a trigger signal. The power supply circuit 27 is used to drive the corresponding roving blocking device body 4 to perform the roving blocking operation through the received power supply signal when turned on.

[0093] In this embodiment, the signal transmission module 2 has two preset states: action (i.e., controlling the corresponding roving blocking device body 4 to perform the roving blocking operation) and inaction (i.e., not controlling the corresponding roving blocking device body 4 to perform the roving blocking operation). When the first data input terminal D1 is set to 0, the corresponding signal transmission module 2 is in the preset state of inaction; when the first data input terminal D1 is set to 1, the corresponding signal transmission module 2 is in the preset state of action.

[0094] Specifically, during the process of data shifting between each first rising edge D flip-flop 21, the control signal output by the main control module 1 does not output a trigger signal to the switch trigger input terminal R / L 1 (that is, the main control module 1 outputs 0 to the switch trigger input terminal R / L 1). When the switch trigger input terminal R / L 1 of each first rising edge D flip-flop 21 is set to 0, no matter whether the output of the first data output terminal Q1 is 0 or 1, based on the characteristics of the first NAND gate circuit 23, the output terminal of the first NAND gate circuit 23 is 1. When the control signal output by the main control module 1 is arranged on each first rising edge D flip-flop 21, the main control module 1 outputs a trigger signal to the switch trigger input terminal R / L1 (i.e., the main control module 1 outputs 1 to the switch trigger input terminal R / L1). When the switch trigger input terminals R / L1 of each first rising edge D flip-flop 21 are all set to 1, if the output of the first data output terminal Q1 is 0 (i.e., the corresponding signal transmission module 2 is in a preset state of inaction), the output terminal of the first NAND gate circuit 23 is 1; if the output of the first data output terminal Q1 is 1 (i.e., the corresponding signal transmission module 2 is in a preset state of action), the output terminal of the first NAND gate circuit 23 is 0. Correspondingly, the switch circuit 26 can be set to be cut off at a high level (i.e., the enable terminal is set to 1) and turned on at a low level (i.e., the enable terminal is set to 0).

[0095] Based on the above settings, when the main control module 1 does not output a trigger signal to the switch trigger input terminal R / L 1, the switch circuit 26 is always in the off state, and the power supply circuit 27 cannot drive the corresponding roving blocking device body 4 to perform the roving blocking operation through the power supply signal received at the power supply end (specifically, the voltage output by the 24V voltage regulator source). Specifically, the electric drive device (such as an electromagnet) on the power supply circuit 27 is kept in a non-working state without power, so that the corresponding roving blocking device body 4 cannot cut off the roving with the help of the action of the electric drive device. In this way, each first rising edge D trigger 21 can stably perform the data shift operation. When the data of the control signal is arranged on each first rising edge D flip-flop 21, the main control module 1 outputs a trigger signal to the switch trigger input terminal R / L 1. At this time, the switch circuit 26 corresponding to the first rising edge D flip-flop 21 whose first data output terminal Q1 is 0 remains cut off, and the power supply circuit 27 still cannot drive the corresponding roving blocking device body 4 to perform the roving blocking operation through the power supply signal received at the power supply end, that is, the signal transmission module 2 will remain in a preset state of inaction; and the switch circuit 26 corresponding to the first rising edge D flip-flop 21 whose first data output terminal Q1 is 1 will become conductive, and the corresponding power supply circuit 27 can drive the corresponding roving blocking device body 4 to perform the roving blocking operation through the power supply signal received at the power supply end, specifically, the electric drive device (such as an electromagnet) on the power supply circuit 27 is switched to an energized working state, so that the corresponding roving blocking device body 4 can cut off the roving with the help of the action of the electric drive device.

[0096] Optionally, refer to Figure 5 , the switch circuit 26 includes a first inverter, a first follower and a first NMOS tube, and the power supply circuit 27 includes a first diode D3, a first inductor L and a first ground terminal; wherein:

[0097] The input end of the first inverter is electrically connected to the output end of the first NAND gate circuit 23, the input end of the first follower is electrically connected to the output end of the first inverter, the output end of the first follower is electrically connected to the gate of the first NMOS tube, the power supply end is electrically connected to the cathode of the first diode D3 and one end of the first inductor L respectively, the anode of the first diode D3 and the other end of the first inductor L are electrically connected to the drain of the first NMOS tube, and the source of the first NMOS tube is electrically connected to the first ground terminal.

[0098] In the present embodiment, specifically, an electromagnet or other electric drive device can be connected to the power supply circuit 27, and a gear lever for cutting off the coarse yarn is provided on the electromagnet. When the main control module 1 does not output a trigger signal to the switch trigger input terminal R / L1, the output terminal of the first NAND gate circuit 23 is 1, which becomes 0 after being inverted by the first inverter and is output to the gate of the first NMOS tube, so that the first NMOS tube is cut off and the power supply circuit 27 is not conductive, so that the electromagnet on the power supply circuit 27 is in a power-free state and cannot drive the gear lever to move and perform the coarse yarn blocking operation. At this time, each first rising edge D trigger 21 can stably perform the data shift operation. When the data of the control signal is arranged on each first rising edge D flip-flop 21, the main control module 1 outputs a trigger signal to the switch trigger input terminal R / L 1. At this time, the output terminal of the first NAND gate circuit 23 corresponding to the first rising edge D flip-flop 21 with the first data output terminal Q1 being 0 is 1, which is inverted by the first inverter and becomes 0 and output to the gate of the first NMOS tube. The first NMOS tube remains cut off, and the corresponding power supply circuit 27 is still in a non-conducting state. The electromagnet on the power supply circuit 27 is still in a power-off state, so that the gear lever cannot be driven to move and perform the coarse yarn blocking operation; and the output terminal of the first NAND gate circuit 23 corresponding to the first rising edge D flip-flop 21 with the first data output terminal Q1 being 1 is 0, which is inverted by the first inverter and becomes 1 and output to the gate of the first NMOS tube. The first NMOS tube becomes conductive, and the corresponding power supply circuit 27 is switched to a conductive state at this time. After being energized, the electromagnet on the power supply circuit 27 can drive the gear lever to pop out and cut off the coarse yarn, thereby completing the coarse yarn blocking operation.

[0099] The first follower can use its characteristics of high input impedance and low output impedance to play a role of buffering and isolation between the first inverter and the first NMOS tube, so as to block the interference of the latter stage to the former stage and improve the stability of electrical signal transmission. The parallel circuit formed by the first diode D3 and the first inductor L can protect the first NMOS tube, avoid the first NMOS tube from being damaged by a large induced voltage when it changes from on to off, improve the operating reliability of the circuit and extend the service life of the first NMOS tube.

[0100] Optionally, refer to Figure 5 , the signal transmission module 2 includes a second rising edge D trigger 22; wherein:

[0101] The backward input terminal DATAIN is electrically connected to the second data input terminal D2 of the second rising edge D flip-flop 22 , the clock adjustment input terminal DCLK1 is electrically connected to the second clock port of the second rising edge D flip-flop 22 , and the backward output terminal DATAOUT is electrically connected to the second data output terminal Q2 of the second rising edge D flip-flop 22 .

[0102] The specific structure and principle of the D flip-flop are as follows Figure 6As shown, based on the characteristics of the NAND gate circuit, when the clock terminal is set to 0, no matter what the input value is, the value of the output terminal will remain unchanged (whatever the value was before, it will remain the same now); when the clock terminal is set to 1, no matter what the input value is, the value of the output terminal is equal to the value of the input terminal. In short, when the rising edge of the clock signal arrives (that is, when the input of the D flip-flop changes from 0 to 1), the value of the output of the D flip-flop will immediately remain consistent with the value of the input; that is, at the moment the rising edge of the clock signal arrives, the output of the D flip-flop will complete a synchronization with the input; in other cases (when the clock signal remains unchanged or when the falling edge arrives), the output of the D flip-flop will not change.

[0103] Based on the above principle, the two D flip-flops can be pressed Fig. 9 The second rising edge D flip-flop 22 is connected in the manner shown in FIG. Fig.10 In this way, similar to the transmission process of the control signal, the feedback signal can be transmitted backward through each rising edge of the clock signal (i.e., each time the rising edge arrives, the string of 0s and 1s contained in the feedback signal is moved to the left as shown in the figure to the second rising edge D flip-flop 22 of the next bit), so as to achieve the effect of shifting the data bit by bit until the feedback signal output by the corresponding signal transmission module 2 is completely transmitted to the main control module 1.

[0104] Optionally, refer to Figure 5 The signal transmission module 2 also includes a first voltage source; the first preset terminal S1 of the first rising edge D trigger 21 is electrically connected to the positive electrode of the first voltage source, the negative electrode of the first voltage source is grounded, and the first reset terminal R1 of the first rising edge D trigger 21 is electrically connected to the switch trigger input terminal R / L1.

[0105] Optionally, refer to Figure 5 The signal transmission module 2 also includes a second voltage source, a second inverter, a second NAND gate circuit 24 and a third NAND gate circuit 25; the input end of the second inverter is electrically connected to the switch trigger input end R / L1, the output end of the second inverter is electrically connected to the first input end of the second NAND gate circuit 24 and the first input end of the third NAND gate circuit 25 respectively, the second input end of the second NAND gate circuit 24 is electrically connected to the positive electrode of the second voltage source, the negative electrode of the second voltage source is grounded, the output end of the second NAND gate circuit 24 is electrically connected to the second input end of the third NAND gate circuit 25 and the first preset end S1 of the second rising edge D flip-flop 22 respectively, and the output end of the third NAND gate circuit 25 is electrically connected to the second clear end R2 of the second rising edge D flip-flop 22.

[0106] The first voltage source can set the first preset terminal S1 of the first rising edge D flip-flop 21 to 1, and the second voltage source can set the second input terminal of the second NAND gate circuit 24 to 1. In the process of data shifting of the control signal output by the main control module 1 through each first rising edge D flip-flop 21, the switch trigger input terminal R / L1 is always kept at 0, and the first reset terminal R1 of the first rising edge D flip-flop 21 is set to 0, and based on the characteristics of the second inverter, the second NAND gate circuit 24 and the third NAND gate circuit 25, the second preset terminal S2 of the second rising edge D flip-flop 22 is set to 0, and the second reset terminal R2 of the second rising edge D flip-flop 22 is set to 1; according to the characteristics of the D flip-flop, the first data input terminal D1 and the first data output terminal Q1 of the first rising edge D flip-flop 21 can transmit data normally, that is, the data shift operation of the control signal can be carried out normally; and no matter what the value of the second data input terminal D2 of the second rising edge D flip-flop 22 is, the second data output terminal Q2 of the second rising edge D flip-flop 22 is set to 1, that is, the data shift operation of the feedback signal cannot be carried out at this time.

[0107] When the switch trigger input terminal R / L1 is set to 1 (i.e., the corresponding signal transmission module 2 is triggered to turn on and enter the preset action state), the first reset terminal R1 of the first rising edge D flip-flop 21 is set to 1, and based on the characteristics of the second inverter, the second NAND gate circuit 24 and the third NAND gate circuit 25, the second preset terminal S2 of the second rising edge D flip-flop 22 is set to 1, and the second reset terminal R2 of the second rising edge D flip-flop 22 is set to 1; according to the characteristics of the D flip-flop, at this time, when the value of the first data input terminal D1 of the first rising edge D flip-flop 21 does not change, the value of the first data output terminal Q1 of the first rising edge D flip-flop 21 also remains unchanged; and at this time, the second data input terminal D2 and the second data output terminal Q2 of the second rising edge D flip-flop 22 can transmit data normally, that is, the data shift operation of the feedback signal can be carried out normally.

[0108] When the switch trigger input terminal R / L 1 is set to 0 again, the first reset terminal R1 of the first rising edge D flip-flop 21 is set to 0, the second preset terminal S2 of the second rising edge D flip-flop 22 is set to 0, and the second reset terminal R2 of the second rising edge D flip-flop 22 is set to 1; according to the characteristics of the D flip-flop, at this time, the first data output terminal Q1 of the first rising edge D flip-flop 21 is forced to be 0, that is, by changing the switch trigger input terminal R / L 1 from 1 to 0, the first rising edge D flip-flop 21 can be reset to perform a data shift operation of the next round of control signals, and it can be ensured that the data left by the first rising edge D flip-flop 21 will not affect the data shift operation of the next round of control signals; and at this time, the second data output terminal Q2 of the second rising edge D flip-flop 22 is forced to be 1, that is, by changing the switch trigger input terminal R / L 1 from 1 to 0, the second rising edge D flip-flop 22 can be preset to clear the data left by the previous feedback signal shift operation, so as to perform the data shift operation of the next round of feedback signals.

[0109] Regarding the actual operation of the roving blocking device system in the above embodiment, please refer to Fig.11 The simulated waveform diagram of the roving blocking device system captured during operation is shown.

[0110] Correspondingly, an embodiment of the present invention further provides a yarn cutting box installed on the roving blocking device body 4, and the yarn cutting box includes the signal transmission module 2 in any of the above embodiments.

[0111] In this embodiment, the yarn cutting box is an executive component controlled by the signal transmission module 2. When the spun yarn is broken, the signal transmission module 2 can control the yarn cutting box to cut the coarse yarn to prevent the coarse yarn from being fed further, thereby reducing the waste of coarse yarn raw materials and avoiding flying flowers, etc. The specific working principle of the yarn cutting box can be referred to the prior art and will not be described here.

[0112] It should be noted that other contents of the roving blocking device system disclosed in the present invention can be found in the prior art and will not be described in detail herein.

[0113] The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A roving blocking device system, characterized in that: The roving blocking device system comprises: Main control module; at least two roving blocking device bodies; At least two signal transmission modules are arranged on at least two of the roving blocking device bodies in a one-to-one correspondence; the main control module and the at least two signal transmission modules are connected in sequence in a serial connection manner; The main control module is at least used to output a control signal to each of the signal transmission modules through serial communication; each of the signal transmission modules is used to control the corresponding roving blocking device body to perform a yarn break detection operation and / or a roving blocking operation corresponding to the received control signal; The signal transmission module has a clock adjustment input terminal and a clock adjustment output terminal; wherein: The clock adjustment input end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the clock adjustment input end of each of the remaining signal transmission modules is electrically connected to the clock adjustment output end of another signal transmission module close to one side of the main control module; The main control module is used to output the clock signal to the clock adjustment input terminal of each of the signal transmission modules through serial communication; Each of the signal transmission modules is used for shifting the currently received control signal along a serial connection path to another signal transmission module away from the main control module each time the clock signal is received.

2. The roving blocking device system according to claim 1, characterized in that: Each of the signal transmission modules is used to output a feedback signal to the main control module through serial communication.

3. The roving blocking device system according to claim 2, characterized in that: The signal transmission module directly connected to the main control module is used to output the currently received feedback signal to the main control module each time the clock signal is received; each of the remaining signal transmission modules is used to shift the currently received feedback signal along the serial connection path to another signal transmission module close to one side of the main control module each time the clock signal is received.

4. The roving blocking device system according to claim 3, characterized in that: The signal transmission module has a switch trigger input terminal and a switch trigger output terminal; wherein: The switch trigger input end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the switch trigger input end of each of the remaining signal transmission modules is electrically connected to the switch trigger output end of another signal transmission module close to one side of the main control module; The main control module is used to output a trigger signal to the switch trigger input terminal of each of the signal transmission modules through serial communication; Each of the signal transmission modules is used for controlling the corresponding roving blocking device body to perform a yarn breakage detection operation and / or a roving blocking operation corresponding to the currently received control signal when receiving the trigger signal; And / or, each of the signal transmission modules is used to output the feedback signal to the main control module through serial communication after receiving the trigger signal.

5. The roving blocking device system according to claim 4, characterized in that: The signal transmission module has a forward input terminal, a forward output terminal, a backward input terminal and a backward output terminal; the forward input terminal is used to receive the control signal, the forward output terminal is used to output the control signal, the backward input terminal is used to receive the feedback signal, and the backward output terminal is used to output the feedback signal; wherein: The forward input end and the backward output end of the signal transmission module directly connected to the main control module are electrically connected to the main control module; The forward input end of each of the remaining signal transmission modules is electrically connected to the forward output end of another signal transmission module close to the main control module, and the backward output end of each of the remaining signal transmission modules is electrically connected to the backward input end of another signal transmission module close to the main control module.

6. The roving blocking device system according to claim 5, characterized in that: The signal transmission module includes a first rising edge D trigger; wherein: The forward input terminal is electrically connected to the first data input terminal of the first rising edge D flip-flop, the clock adjustment input terminal is electrically connected to the clock adjustment output terminal and the first clock port of the first rising edge D flip-flop respectively, and the forward output terminal is electrically connected to the first data output terminal of the first rising edge D flip-flop.

7. The roving blocking device system according to claim 6, characterized in that: The signal transmission module includes a power supply end, a power supply circuit, a switch circuit and a first NAND gate circuit; wherein: The power supply end of the signal transmission module directly connected to the main control module is electrically connected to the main control module; the power supply end of each of the remaining signal transmission modules is electrically connected to the power supply end of the adjacent signal transmission module; The main control module is used to output the power supply signal to the power supply end of each signal transmission module through a serial connection; The first data output terminal is electrically connected to the first input terminal of the first NAND gate circuit, the switch trigger input terminal is electrically connected to the switch trigger output terminal and the second input terminal of the first NAND gate circuit respectively, the output terminal of the first NAND gate circuit is electrically connected to the enable terminal of the switch circuit, the switch circuit is electrically connected to the power supply circuit, and the power supply terminal is electrically connected to the power supply circuit; The switch circuit is used to control the power supply circuit to be turned on when the switch trigger input terminal receives the trigger signal. The power supply circuit is used to drive the corresponding roving blocking device body to perform a roving blocking operation through the received power supply signal when turned on.

8. The roving blocking device system according to claim 7, characterized in that: The switch circuit includes a first inverter, a first follower and a first NMOS tube, and the power supply circuit includes a first diode, a first inductor and a first ground terminal; wherein: The input end of the first inverter is electrically connected to the output end of the first NAND gate circuit, the input end of the first follower is electrically connected to the output end of the first inverter, the output end of the first follower is electrically connected to the gate of the first NMOS tube, the power supply end is electrically connected to the cathode of the first diode and one end of the first inductor respectively, the anode of the first diode and the other end of the first inductor are electrically connected to the drain of the first NMOS tube, and the source of the first NMOS tube is electrically connected to the first ground end.

9. The roving blocking device system according to claim 7, characterized in that: The signal transmission module includes a second rising edge D trigger; wherein: The backward input terminal is electrically connected to the second data input terminal of the second rising edge D flip-flop, the clock adjustment input terminal is electrically connected to the second clock port of the second rising edge D flip-flop, and the backward output terminal is electrically connected to the second data output terminal of the second rising edge D flip-flop.

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