Device for preventing electric spindle centrifugal cylinder from flying

Abstract

A device for preventing an electric spindle centrifugal cylinder from flying relates to the technical field of viscose filament production and manufacturing, and comprises a power signal feedback circuit, a master controller, a flying prevention signal circuit and a power-off delay time relay, and the power signal feedback circuit is used for connecting whether a power signal of a power device exists or not to a coil loop of the power-off delay time relay through an output point Y12 of the master controller. The power-off delay time relay is connected to the master controller through a cylinder flying prevention signal circuit, the master controller controls the power supply device to start and stop through a circuit, and the power supply device is connected with the electric spindle. The power-off delay time relay collects the state of a power supply device and inputs collected signals into the master controller through a power-off delay disconnection contact, the master controller judges whether output is stopped or not according to the state of the contact, the function of preventing the electric spindle centrifugal cylinder from flying is achieved, and when power is on after power is off for more than 30 seconds, it is guaranteed that an electric spindle cannot be started automatically, and the service life of the electric spindle centrifugal cylinder is prolonged. It is ensured that the electric spindle centrifugal cylinder does not fly, the equipment damage rate and waste of production materials are reduced, and the personal safety of operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of viscose filament production and manufacturing, and specifically relates to an anti-flying cylinder device for an electric spindle centrifugal cylinder. Background Art

[0002] In the prior art, during the spinning production process of viscose filaments, viscose enters the spinning machine rubber tube under a certain pressure, is metered by a metering pump, filtered by a filter, and is sprayed into a coagulation bath by a spinneret for wire drawing. The filaments are drawn through a godet hook and a spinning disk, further coagulated and decomposed on a coagulation roller, then deacidified on a deacidifying roller, and then the filaments are stacked into a cake in a centrifugal cylinder by a funnel. The centrifugal cylinder is provided with centrifugal force by an electric spindle (8000 - 8500 r / min), and finally the filaments are dropped, thus completing a working process of the spinning machine.

[0003] However, in actual production, when a sudden power outage occurs and the power outage time exceeds 30 s, the rotational speed of the electric spindle drops sharply, which will cause the filaments to break, the filaments in the cylinder to become fluffy and wind around the inner wall, and the electric spindle cylinder to shake severely. At this time, if power is suddenly restored, the spinning electric spindle will start automatically, resulting in a flying cylinder phenomenon due to the fluffy filaments winding around the inner wall and uneven stress, causing the cylinder to fly away from the rotating shaft. The flying cylinder phenomenon will, on the one hand, cause damage to the spinning machine, increase the maintenance and resumption costs, and cause waste of production raw materials; on the other hand, it will seriously endanger the personal safety of operators. Therefore, it is becoming increasingly important to study an anti-flying cylinder device for an electric spindle centrifugal cylinder. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the invention purpose of the utility model is to provide an anti-flying cylinder device for an electric spindle centrifugal cylinder, so as to ensure that the electric spindle does not start automatically when the power supply of the electric spindle suddenly fails and then power is suddenly restored after more than 30 s, and achieve the purpose of preventing the flying cylinder of the electric spindle centrifugal cylinder from injuring people and damaging equipment, and reducing potential safety hazards.

[0005] To achieve the above invention purpose, the anti-flying cylinder device for an electric spindle centrifugal cylinder of the utility model includes a power supply signal feedback circuit, a main controller, an anti-flying cylinder signal circuit, and a power-off delay time relay; the power supply signal feedback circuit connects the power supply signal of the power supply device to the coil circuit of the power-off delay time relay through the output point Y of the main controller 12 The power-off delay time relay is connected to the main controller through the anti-flying cylinder signal circuit. The main controller controls the start and stop of the power supply device through a circuit, and the power supply device is connected to the electric spindle.

[0006] Further, the R, S, and T three-phase AC power supplies of the power supply device are respectively supplied to the U1 main machine frequency converter and the U R The circuit breaker supplies power to the standby frequency converter. The output side of the U1 main machine frequency converter is connected to the main contact input side of the KM1 main machine contactor, and the U R The standby frequency converter output side is connected to the main contact input side of the KM2 standby contactor, and the output side of the U RThe output side of the standby frequency converter is connected to the input side of the main contacts of the KM2 standby contactor. The output side of the main contacts of the KM2 standby contactor and the output side of the main contacts of the KM1 main contactor are connected in parallel with the same-phase power supply in sequence and then connected to the TB intermediate frequency transformer. The TB intermediate frequency transformer is connected to the electric spindle through an intermediate frequency cable;

[0007] The FU1 fuse provides the working power supply for the main controller. The normally open point of the manual / automatic knob KK1 is connected to the input point X of the main controller 04 , and the two normally open points of the main / standby selection knob KK2 are respectively connected to the input points X of the main controller 01 main machine operation position, X 02 standby machine operation position, the normally open auxiliary contact KM of the main contactor KM1 of the main machine 1-1 is connected to the input point X of the main controller 05 , the fault output points 30A - 30C of the main machine frequency converter U1 are connected to the input point X of the main controller 06 , the output point Y of the main controller 0E is connected to the start point FWD - CM of the main machine frequency converter U1, and the output point Y of the main controller 0F is connected to the start point FWD - CM of the standby frequency converter U R , the QF2 circuit breaker is connected to the coil of the main machine intermediate relay KA1 through the output point Y of the main controller 10 , the QF2 circuit breaker passes through the normally open contact KA of the main machine intermediate relay KA1 1-1 , the normally closed auxiliary contact KM of the standby contactor KM2 2-2 is connected to the coil of the main contactor KM1 of the main machine;

[0008] The QF2 circuit breaker is connected to the coil of the standby intermediate relay KA2 through the output point Y of the main controller 11 , the QF2 circuit breaker passes through the normally open contact KA of the standby intermediate relay KA2 2-1 , the normally closed auxiliary contact KM of the main contactor KM1 of the main machine 1-2 is connected to the coil of the standby contactor KM2, forming a control circuit for the power supply device;

[0009] The FU1 fuse connected to the three-phase AC power supply of R, S, and T is connected to the coil of the KT1 power-off delay time relay through the output point Y of the main controller 12 , and the power-off delay disconnecting contact KT of the KT1 power-off delay time relay 1-1 is connected to the input point X of the main controller 03 .

[0010] Furthermore, the main controller is a PLC programmable logic controller, and the model is CPM2AH - 40CDR - A.

[0011] Compared with the prior art, the power-off delay time relay of the utility model collects the state of the power supply device, and inputs the collected signal into the main controller through its power-off delay break contact. The main controller judges whether to stop output according to the contact state, so as to realize the function of preventing the flyer of the electric spindle centrifugal cylinder from flying.

[0012] The device for preventing the flyer of the electric spindle centrifugal cylinder is scientifically designed, simple in structure and low in input cost. It only needs a little adjustment on the existing control device, and does not need to change the wiring of the original control circuit. The faulty time relay can be replaced at any time during normal operation. When the power is cut off for more than 30s and then powered on again, it is ensured that the electric spindle cannot start automatically, so as to ensure that the flyer of the electric spindle centrifugal cylinder does not fly, reduce the equipment damage rate and the waste of production materials, reduce the maintenance cost, and ensure the personal safety of the operators. Brief Description of the Drawings

[0013] Figure 1 It is the electrical connection block diagram of the utility model.

[0014] Figure 2 is Figure 1 the circuit diagram of.

[0015] In the figure: 1. Power supply device; 2. Electric spindle; 3. Power signal feedback line; 4. Main controller; 5. Anti-flyer signal line; 6. Power-off delay time relay; 7. Device for preventing the flyer of the electric spindle centrifugal cylinder. Detailed Embodiment

[0016] As Figure 1 、 Figure 2 shown, the device 7 for preventing the flyer of the electric spindle centrifugal cylinder of the utility model includes a power signal feedback line 3, a main controller 4, an anti-flyer signal line 5, and a power-off delay time relay 6; the power signal feedback line 3 connects the presence or absence of a power signal of the power supply device 1 to the coil circuit of the power-off delay time relay 6 through the output point Y 12 of the main controller 4. The power-off delay time relay 6 is connected to the main controller 4 through the anti-flyer signal line 5. The main controller 4 controls the start and stop of the power supply device 1 through a line, and the power supply device 1 is connected to the electric spindle 2. The main controller 4 and the power-off delay time relay 6 achieve the purpose of preventing the flyer of the electric spindle centrifugal cylinder through logical cooperation (the normally open and normally closed contacts of related components realize actions such as closing and opening when reaching their own action conditions, and are connected into a circuit through forms such as series and parallel, and finally achieve the predetermined electrical requirements).

[0017] Preferably, the R, S, and T three-phase AC power supplies of the power supply device 1 are respectively supplied to the U1 main machine frequency converter and the U R breaker supplies power to the standby machine frequency converter through the QF1 circuit breaker and the QF R The output side of the U1 main machine frequency converter is connected to the main contact input side of the KM1 main machine contactor, and the U RThe output side of the standby frequency converter is connected to the input side of the main contacts of the KM2 standby contactor. The output side of the main contacts of the KM2 standby contactor and the output side of the main contacts of the KM1 main contactor are connected in parallel in sequence with the same-phase power supply and then connected to the TB intermediate-frequency transformer. The TB intermediate-frequency transformer is connected to the spindle 2 through an intermediate-frequency cable;

[0018] The FU1 fuse provides the working power supply for the main controller 4. The normally open point of the manual / automatic knob KK1 is connected to the input point X of the main controller 4 04 , and the two normally open points of the main / standby selection knob KK2 are respectively connected to the input point X of the main controller 4 01 main machine operation position, X 02 standby machine operation position, the normally open auxiliary contact KM of the main contactor KM1 1-1 is connected to the input point X of the main controller 4 05 , the fault output points 30A - 30C of the main machine frequency converter U1 are connected to the input point X of the main controller 4 06 , the output point Y of the main controller 4 0E is connected to the start point FWD-CM of the main machine frequency converter U1. The output point Y of the main controller 4 0F is connected to the start point FWD-CM of the standby machine frequency converter U R , the QF2 circuit breaker is connected to the coil of the main machine intermediate relay KA1 through the output point Y of the main controller 4 10 , the QF2 circuit breaker passes through the normally open contact KA of the main machine intermediate relay KA1 1-1 , the normally closed auxiliary contact KM of the standby contactor KM2 2-2 is connected to the coil of the main contactor KM1;

[0019] The QF2 circuit breaker is connected to the coil of the standby machine intermediate relay KA2 through the output point Y of the main controller 4 11 , the QF2 circuit breaker passes through the normally open contact KA of the standby machine intermediate relay KA2 2-1 , the normally closed auxiliary contact KM of the main contactor KM1 1-2 is connected to the coil of the standby contactor KM2, forming the control circuit of the power supply device 1;

[0020] The FU1 fuse connected to the three-phase AC power supply of R, S, and T is connected to the coil of the KT1 power-off delay time relay 6 through the output point Y of the main controller 4 12 , the power-off delay open contact KT of the KT1 power-off delay time relay 6 1-1 is connected to the input point X of the main controller 4 03 is connected.

[0021] Preferably, the main controller 4 is a PLC programmable logic controller, with the model CPM2AH-40CDR-A, produced by Omron Corporation, and can be directly configured through the market.

[0022] During normal production, the FU1 fuse, QF1, and QF2 circuit breakers are closed, and the main circuit, control circuit, and main controller 4 are powered on. The manual / automatic selection knob KK2 is in the stop position. At this time, the input points X 01 and X 02 of the main controller 4 are both in the off state. The corresponding auxiliary normally closed contacts of X 01 and X 02 in the main controller 4 device are in a series closed state. At this time, the coil circuit of the internal auxiliary relay M 03 of the main controller 4 is connected and self-locked. The normally open contact of the internal auxiliary relay M 03 of the main controller 4 is closed. Then, the output point Y 03 controlled by the normally open contact of the internal auxiliary relay M 12 of the main controller 4 is turned on. The coil circuit of the KT1 power-off delay time relay 6 connected to the output point Y 12 of the main controller 4 is conducted. The power-off delay open contact KT 1-1 of the KT1 power-off delay time relay 6 immediately closes, enabling the input point X 03 of the main controller 4 to be turned on. The auxiliary normally closed contacts of X 01 and X 02 in the main controller 4 device are connected in series and then paralleled with the auxiliary normally open contact of X 03 to jointly control the on / off of the coil of the internal auxiliary relay M 03 of the main controller 4, thereby controlling the on / off of the coil of the KT1 power-off delay time relay 6. That is, after power-on, the input points X 01 and X 02 of the main controller 4 are in the off state simultaneously, or the input point X 03 of the main controller 4 is in the on state. At this time, the main controller 4 completes the device startup preparation work. When the manual / automatic knob KK1 is rotated to X 04 to be turned on, the main / backup machine selection knob KK2 is rotated from the stop position to X 01 the main machine operation position to be turned on, and the input point X 05 of the main controller 4, the main contactor KM1 fault position of the main machine, and X 06 the main frequency converter U1 fault position of the main machine are not conducted. At this time, the main controller 4 device operates in the automatic main machine operation state. The main frequency converter U1 of the main machine operates, and the main contactor KM1 of the main machine is attracted. The auxiliary normally open contact KM 1-1 of the main contactor KM1 of the main machine is also closed. If the main frequency converter U1 of the main machine or the main contactor KM1 of the main machine fails, the fault contact 30A - 30C of the main frequency converter of the main machine is closed, or the auxiliary normally open contact KM 1-1 of the main contactor KM1 of the main machine is opened. The main controller 4 device automatically switches to the backup machine operation to ensure the continuous and stable operation of the equipment.

[0023] When power outages occur in lines R, S, and T, the main controller 4 loses power and all devices are reset to stop output. The coil of the power-off delay time relay 6 of KT1 immediately loses power, and the rotation speed of the spindle 2 continues to decrease. When the power outage time exceeds 30s, the power-off delay time of the power-off delay time relay 6 of KT1 reaches the set time, and the power-off delay disconnecting contact KT of the power-off delay time relay 6 of KT1 1-1 changes from the closed state to the initial open state. At this time, even if power is restored, since the main / standby machine selection knob KK2 is in the main machine operation position, that is, the input point X of the main controller 4 01 is closed, the auxiliary normally closed contact of X in the main controller 4 device 01 is disconnected. At this time, the corresponding X in the main controller 4 device 01 and X 02 auxiliary normally closed contacts are in a series-disconnected state. The coil circuit of the internal auxiliary relay M of the main controller 4 03 is disconnected, and the auxiliary normally open contact of the relay M 03 is in the open state. Then, the output point Y controlled by the normally open contact of the internal auxiliary relay M of the main controller 4 03 is also in the open state. Then, the coil circuit of the power-off delay time relay 6 of KT1 connected to the output point Y of the main controller 4 12 is still in the open state. At this time, the power-off delay time relay 6 of KT1 is also in the state where the timing is in place, so that the power-off delay disconnecting contact KT of the power-off delay time relay 6 of KT1 12 remains in the open state. The input point X of the main controller 4 1-1 is in the open state due to the disconnection of the power-off delay disconnecting contact KT of the power-off delay time relay 6 of KT1 03 1-1 01 02 03 04 01 At this time, the conditions for the simultaneous disconnection of the input points X and X of the main controller 4 or the on state of the input point X of the main controller 4 are not met. Therefore, the main controller 4 device has not completed the startup preparation work. At this time, even if the manual / automatic knob KK1 is in the X 03 on position and the main / standby machine selection knob KK2 is in the X 04 on position, the main controller 4 device cannot start the automatic main machine operation state, so that the spindle cannot self-start after the power outage exceeds 30s and power is restored, eliminating the phenomenon of the spindle centrifugal cylinder flying due to uneven stress caused by the silk strip being fluffy and winding on the inner wall, and achieving the purpose of preventing the spindle centrifugal cylinder from flying.​​

Claims

1. An anti-electric spindle centrifugal cylinder flying cylinder device, characterized in that: The anti-flying cylinder device (7) of the anti-electric spindle centrifugal cylinder includes a power signal feedback line (3), a main controller (4), an anti-flying cylinder signal line (5), and a power-off delay time relay (6); the power signal feedback line (3) outputs the power signal of the power supply device (1) through the output point Y of the main controller (4) 12 and is connected to the coil circuit of the power-off delay time relay (6). The power-off delay time relay (6) is connected to the main controller (4) through the anti-flying cylinder signal line (5). The main controller (4) controls the start and stop of the power supply device (1) through a line, and the power supply device (1) is connected to the spindle (2).

2. The anti-electric spindle centrifugal cylinder flying cylinder device according to claim 1, characterized in that: The R, S, and T three-phase AC power supplies of the power supply device (1) pass through the QF1 circuit breaker and QF R The circuit breaker supplies power to the U1 main machine frequency converter and U R The output side of the U1 main machine frequency converter is connected to the input side of the main contacts of the KM1 main machine contactor, and U R The output side of the standby machine frequency converter is connected to the input side of the main contacts of the KM2 standby machine contactor. The output sides of the main contacts of the KM2 standby machine contactor and the main contacts of the KM1 main machine contactor are connected in parallel in sequence for the same-phase power supply and then connected to the TB intermediate frequency transformer. The TB intermediate frequency transformer is connected to the electric spindle (2) through an intermediate frequency cable; FU1 fuse provides working power supply for the main controller (4), and the normally open contact of the manual / automatic knob KK1 is connected to the input point X of the main controller (4). 04 Two normally open contacts of the main / standby machine selection knob KK2 are respectively connected to the input point X of the main controller (4). 01 Main machine operation position, X 02 Standby machine operation position, the normally open auxiliary contact KM of the main machine contactor KM1 1-1 is connected to the input point X of the main controller (4). 05 The fault output points 30A - 30C of the main machine frequency converter U1 are connected to the input point X of the main controller (4). 06 The output point Y of the main controller (4). 0E is connected to the start point FWD - CM of the main machine frequency converter U1, and the output point Y of the main controller (4). 0F is connected to the start point FWD - CM of the standby machine frequency converter U R The QF2 circuit breaker is connected to the coil of the main machine intermediate relay KA1 through the output point Y of the main controller (4). 10 The QF2 circuit breaker is connected to the coil of the main machine contactor KM1 through the normally open contact KA of the main machine intermediate relay KA1 1-1 and the normally closed auxiliary contact KM of the standby machine contactor KM2 2-2 is connected to the coil of the main machine contactor KM1; The QF2 circuit breaker outputs point Y through the main controller (4). 11 It is connected to the coil of the standby machine intermediate relay KA2. The QF2 circuit breaker passes through the normally open contact KA of the standby machine intermediate relay KA2 2-1 and the normally closed auxiliary contact KM of the main machine contactor KM1 1-2 is connected to the coil of the standby machine contactor KM2 to form the control circuit of the power supply device (1). The fuse FU1 connected to the three-phase AC power supply of R, S, and T is output through the output point Y of the main controller (4). 12 It is connected to the coil of the power-off delay time relay KT1 (6). The power-off delay break contact KT of the power-off delay time relay KT1 (6). 1-1 Is connected to the input point X of the main controller (4). 03 Are connected to each other.

3. The anti-electric ingot centrifugal cylinder flying cylinder device according to claim 1, characterized in that: The main controller (4) is a PLC programmable logic controller, with the model number CPM2AH-40CDR-A.

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