CN108418185B - Overcurrent protection device for high-speed injection multi-arm - Google Patents
Overcurrent protection device for high-speed injection multi-arm Download PDFInfo
- Publication number
- CN108418185B CN108418185B CN201810429317.5A CN201810429317A CN108418185B CN 108418185 B CN108418185 B CN 108418185B CN 201810429317 A CN201810429317 A CN 201810429317A CN 108418185 B CN108418185 B CN 108418185B
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- relay
- normally
- coil
- open contact
- closed contact
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- 238000002347 injection Methods 0.000 title claims abstract description 5
- 239000007924 injection Substances 0.000 title claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 239000004753 textile Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0853—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load specially adapted for motors rotating in both directions
Landscapes
- Looms (AREA)
Abstract
An overcurrent protection device for high-speed injection multi-arm belongs to the technical field of textile machinery. The control circuit controls the main circuit according to the received control signal so as to achieve synchronization with the loom, wherein the main circuit comprises a fuse FU, limit switches LSF, LSR, a relay J5 coil J5A, a relay J2 coil J2A, a relay J6 coil J6A, a relay J3 coil J3A, a relay J1 normally-closed contact J1C, a relay J1 normally-open contact J1B, a relay J2 normally-closed contact J2C, a relay J3 normally-closed contact J3C, a motor M, a capacitor C, piezoresistors RC1 and RC2 and a synchronous handle, and the motor M is in linkage with the synchronous handle. The advantages are that: the condition that the relay contacts are burnt out due to the fact that the motor is blocked, the current is increased and exceeds the rated current of the relay can be prevented, and therefore the operation reliability of the loom can be effectively guaranteed.
Description
Technical Field
The application belongs to the technical field of textile machinery, and particularly relates to an overcurrent protection device for a high-speed jet multi-arm, which is an electric synchronous device for the high-speed jet multi-arm and is a control circuit.
Background
The high-speed jet multi-arm is an opening mechanism for weaving plain, twill, satin or small pattern fabrics, which is arranged on various high-performance air-jet and water-jet looms, and the weaving opening is adjusted by a phase device. If the phase device is not used for reversing, the front tissue cannot come out; if the synchronization handle is not adjusted to forward rotation, a mistake is likewise made. The synchronous handle is usually manually pulled before, and later, when the high-speed spraying multi-arm is gradually applied to the air jet loom, the air synchronous device is adopted to drive the synchronous handle to rotate. The air synchronization device needs to use the air cylinder, however, when the high-speed spray multi-arm is used on the water jet loom, the air cylinder cannot be used, so that the applicability of the high-speed spray multi-arm is limited. The application discloses a 'high-speed spraying multi-arm electric synchronization device' introduced by Chinese patent application publication No. CN102998984B, which is applied by the inventor, realizes the use of the high-speed spraying multi-arm on a water-jet loom and improves the adaptability and the reliability of the high-speed spraying multi-arm. In the use of the device, the synchronous handle is driven by the motor to rotate, and the device stops when encountering a travel switch, however, the travel switch sometimes cannot cut off the main circuit of the motor in time due to vibration, inadequately adjusted or damage and the like, so that the problem of motor locked rotor is caused. The motor stall refers to a condition that the motor still outputs torque when the rotation speed is 0. The power factor is extremely low when the motor is locked, and the locked current can be 7 times of rated current, so that serious damage can be caused. In addition, the attraction current of the normally open contact of the relay of the control circuit also becomes large, and when the rated attraction current is exceeded, the contact of the relay is burnt out. Once the relay contacts are burnt out, the corresponding electric control circuit loses the original function, so that the motor does not drive the synchronous handle to rotate continuously.
In view of the above prior art, the present inventors have advantageously devised the technical solutions described below, which are created in this context.
Disclosure of Invention
The application aims to provide an anti-overcurrent protection device capable of accurately controlling, stably and reliably spraying a plurality of arms at a high speed.
The application aims at achieving the aim, the high-speed injection multi-arm overcurrent protection device comprises a main circuit and a control circuit, wherein the control circuit controls the main circuit according to received control signals so as to achieve synchronization with a loom, the main circuit comprises a fuse FU, limit switches LSF and LSR, a relay J5 coil J5A, a relay J2 coil J2A, a relay J6 coil J6A, a relay J3 coil J3A, a relay J1 normally-closed contact J1C, a relay J1 normally-open contact J1B, a relay J2 normally-closed contact J2C, a relay J3 normally-closed contact J3C, a motor M, a capacitor C, piezoresistors RC1 and RC2 and a synchronous handle, one end of the fuse FU is connected with one end of an external alternating current power supply, the other end of the fuse FU is connected with one end of the limit switch LSF, one end of the limit switch LSR, one end of the relay J1C and one end of the relay J1 normally-closed contact J1B, the other end of the limit switch LSF is connected with one end of a relay J5 coil J5A and one end of a relay J2 coil J2A, the other end of the limit switch LSR is connected with one end of a relay J6 coil J6A and one end of a relay J3 coil J3A, the other end of a relay J1 normally-closed contact J1C is connected with one end of a relay J2 normally-closed contact J2C, the other end of a relay J2 normally-closed contact J2C is connected with one end of a capacitor C, one end of a piezoresistor RC1 and 1 pin of a motor M, the other end of a relay J1 normally-open contact J1B is connected with one end of a relay J3 normally-closed contact J3C, the other end of a relay J3 normally-closed contact J3C is connected with the other end of a capacitor C, one end of a piezoresistor RC2 and 2 pin of a motor M, the other end of a relay J5 coil J2A, the other end of a relay J6 coil J6A, the other end of the coil J3A of the relay J3, the other end of the piezoresistor RC1, the other end of the piezoresistor RC2 and the other end of the motor M are commonly connected with the other end of an external alternating current power supply, and the motor M is in linkage with the synchronous handle.
In one specific embodiment of the application, the control circuit comprises a relay J1 coil J1A, a relay J4 coil J4A, a relay J4 normally-closed contact J4C, a relay J3 normally-open contact J3D, a relay J3 normally-closed contact J3E, a relay J5 normally-open contact J5B, a relay J1 normally-open contact J1D, a relay J2 normally-closed contact J2E, a relay J2 normally-open contact J2D and a relay J6 normally-open contact J6B, one end of the normally open contact J3D of the relay J3 is connected with one end of the reverse contactor coil of the loom, the other end of the normally open contact J3D of the relay J3 is connected with one end of the normally closed contact J3E of the relay J3, and is commonly connected to the reverse signal input end of the loom, the other end of the normally closed contact J3E of the relay J3 is connected with one end of a normally open contact J5B of the relay J5, the other end of the normally open contact J5B of the relay J5 is connected with one end of a normally open contact J1D of the relay J1 and one end of a coil J1A of the relay J1, the other end of the normally open contact J1D of the relay J1 is connected with one end of a normally closed contact J4C of the relay J1, the other end of a normally closed contact J4C of the relay J4 is connected with one end of a coil J4A of the relay J4, and is commonly connected to one end of a loom power supply AC110V, the other end of a coil J4A of a relay J4 is connected with one end of a normally open contact J6B of the relay J6, the other end of the normally open contact J6B of the relay J6 is connected with one end of a normally closed contact J2E of the relay J2, the other end of the normally closed contact J2E of the relay J2 is connected with one end of a normally open contact J2D of the relay J2, and are commonly connected to the loom forward signal input end and the other end of the normally open contact of the loom preliminary contactor, and the other end of the normally open contact J2D of the relay J2 is connected with one end of the loom forward contactor coil.
The application has the beneficial effects that as the relay J5 and the relay J6 are additionally arranged, compared with the prior art, the application has the following advantages: the motor is stopped after touching the travel switch in forward and reverse rotation operation, and the corresponding main circuit is disconnected to perform reverse operation, so that the condition that the relay contacts are burnt out due to the fact that the motor is blocked, the current becomes large and exceeds the rated current of the relay can be prevented, and the operation reliability of the loom can be effectively ensured.
Drawings
Fig. 1 is a schematic diagram of the electrical connection of the main circuit according to the present application.
Fig. 2 is a schematic view of the working position of the synchronous handle according to the present application.
Fig. 3 is a schematic diagram of the electrical connection of the control circuit according to the present application.
Fig. 4 is a schematic diagram of the connection of the present application to the loom electric cabinet.
Detailed Description
In order that the nature and advantages of the application may be fully understood by the applicant, a detailed description of specific embodiments of the application will be presented below with reference to the accompanying drawings, but the description of the examples by applicant is not intended to be a limitation, and any variations in form but not substance, according to the inventive concept should be regarded as being within the scope of the application.
Referring to fig. 1, the present application relates to an overcurrent protection device for high-speed spraying multiple arms, which comprises a main circuit and a control circuit, wherein the control circuit controls the main circuit according to a received control signal so as to achieve synchronization with a loom. The control signal includes a preliminary signal, a forward rotation signal, a reverse rotation signal, and the like. The main circuit comprises a fuse FU, limit switches LSF, LSR, a relay J5 coil J5A, a relay J2 coil J2A, a relay J6 coil J6A, a relay J3 coil J3A, a relay J1 normally-closed contact J1C, a relay J1 normally-open contact J1B, a relay J2 normally-closed contact J2C, a relay J3 normally-closed contact J3C, a motor M, a capacitor C and piezoresistors RC1 and RC2, and two input ends of the main circuit are connected with a 110V alternating-current power supply.
Referring to fig. 2, the motor M is linked with the synchronization handle F, and the motor M rotates forward and rotates backward to drive the synchronization handle to move forward or backward, if the synchronization handle is in place, the limit switch LSF is closed, and if the synchronization handle is in place, the limit switch LSR is closed.
Referring to fig. 3 and 4, the control circuit includes a relay J1 coil J1A, a relay J4 coil J4A, a relay J4 normally closed contact J4C, a relay J3 normally open contact J3D, a relay J3 normally closed contact J3E, a relay J5 normally open contact J5B, a relay J1 normally open contact J1D, a relay J2 normally closed contact J2E, a relay J2 normally open contact J2D and a relay J6 normally open contact J6B, one end of the relay J3 normally open contact J3D is connected with one end of a loom reversing contactor MSR coil, the other end of the relay J3 normally open contact J3D is connected with one end of the relay J3 normally closed contact J3E and is commonly connected to a loom reversing signal input end, the other end of the relay J3 normally closed contact J3E is connected with one end of the relay J5 normally open contact J5B, the other end of the relay J5 normally open contact J5B is connected with one end of the relay J1 contact J1D and one end of the relay J1 coil a, the other end of the normally open contact J1D of the relay J1 is connected with one end of a normally open contact of a loom preliminary contactor MSA, the other end of the coil J1A of the relay J1 is connected with one end of a normally closed contact J4C of the relay J4, the other end of the normally closed contact J4C of the relay J4 is connected with one end of a coil J4A of the relay J4 and is commonly connected to one end of a loom power AC110V, the other end of the coil J4A of the relay J4 is connected with one end of a normally open contact J6B of the relay J6, the other end of the normally open contact J6B of the relay J6 is connected with one end of a normally closed contact J2E of the relay J2, the other end of the normally closed contact J2E of the relay J2 is connected with one end of a normally open contact J2D of the relay J2 and is commonly connected to a normal rotating signal input end of the loom and the other end of the normally open contact of the loom preliminary contactor MSA, and the other end of the normally open contact J2D of the relay J2 is commonly connected with one end of a normally-closed contact MSM of the loom. CN13 in fig. 4 is a wiring row in the electric cabinet of the loom, where SF represents a forward signal input when a forward button is pressed, and SR represents a reverse signal input when a reverse button is pressed. The forward signal is connected to the control circuit through the normally closed contact of the loom reverse contactor MSR, and the reverse signal is connected to the control circuit through the normally closed contact of the loom forward contactor MSM.
With continued reference to fig. 1 and 2, the working principle of the present application will be described.
When the loom is electrified, the motor M automatically and positively operates, and drives the synchronous handle to operate to the position of the limit switch LSF, then, as the limit switch LSF is closed, the relay J2 coil J2A and the relay J5 coil J5A are electrified, the normally-closed contact J2C of the relay J2 is disconnected, and the motor M stops operating, at the moment, the normally-open contact J2D of the relay J2 in the control circuit is closed, so that the lead 120 connected to the forward signal input end of the loom and the lead 120F connected to one end of the forward contactor coil of the loom are connected, and the forward operation of the loom is allowed. When the synchronous handle is at the position of the limit switch LSF, the normally open contact J5B of the relay J5 is closed, and when the reversing button of the loom is further pressed down, the motor M starts to reverse, and drives the synchronous handle to toggle. In this embodiment, the relay J5 is added, so that the motor M must rotate in place and stop before rotating in reverse, so that the situations of motor stalling, excessive current, burnout of the relay contacts, etc. caused by the fact that the travel switch cannot cut off the main circuit in time due to vibration, improper adjustment, damage, etc. can be prevented. In the toggle process, the limit switch LSR is not actuated, so that the loom is still not actuated although the reversing button of the loom is pressed. The reason is that if the loom is operated at this time, a pattern disorder phenomenon is caused because the synchronization handle has not yet reached the position where the reverse stop is not allowed. Only when the motor M rotates to a certain degree and the gear of the synchronous handle is reversed in place, the limit switch LSR acts, so that the relay J3 coil and the relay J6 coil are powered on, on one hand, the normally closed contact J3C of the relay J3 is disconnected, the motor M stops running, on the other hand, the normally open contact J3D of the relay J3 in the control circuit is closed, the lead 121 connected to the reverse signal input end of the loom and the lead 121R connected to one end of the reverse contactor coil of the loom are connected, and after the two leads are connected, the reverse button of the loom starts to play a role. When the forward button or the preliminary button on the loom is pressed, the situation is exactly opposite to the above, and will not be repeated here.
Claims (1)
1. The utility model provides a high-speed injection multiarm prevents overcurrent protection device which characterized in that: comprises a main circuit and a control circuit, wherein the control circuit controls the main circuit according to a received control signal so as to achieve synchronization with a loom, the main circuit comprises a fuse FU, limit switches LSF and LSR, a relay J5 coil J5A, a relay J2 coil J2A, a relay J6 coil J6A, a relay J3 coil J3A, a relay J1 normally-closed contact J1C, a relay J1 normally-open contact J1B, a relay J2 normally-closed contact J2C, a relay J3 normally-closed contact J3C, a motor M, a capacitor C, piezoresistors RC1 and RC2 and a synchronous handle, one end of the fuse FU is used as one input end of the circuit to be connected with one end of an external alternating current power supply, the other end of the fuse FU is connected with one end of the limit switch LSF, one end of the limit switch LSR, one end of the relay J1 normally-closed contact J1C and one end normally-open contact J1B of the relay J1, the other end of the limit switch LSF is connected with one end of a relay J5 coil J5A and one end of a relay J2 coil J2A, the other end of the limit switch LSR is connected with one end of a relay J6 coil J6A and one end of a relay J3 coil J3A, the other end of a relay J1 normally-closed contact J1C is connected with one end of a relay J2 normally-closed contact J2C, the other end of a capacitor C, one end of a piezoresistor RC1 and 1 pin of a motor M, the other end of a relay J1 normally-open contact J1B is connected with one end of a relay J3 normally-closed contact J3C, the other end of a relay J3 normally-closed contact J3C is connected with the other end of a capacitor C, one end of a piezoresistor RC2 and 2 pin of a motor M, the other end of a relay J5 coil J2A, the other end of a relay J6 coil J6A, the other end of a piezoresistor J3A, the other end of a relay J1 normally-closed contact J2B and the other end of a resistor RC1, the other end of the piezoresistor RC2 and the 3 pin of the motor M are commonly connected with the other end of an external alternating current power supply, the motor M is linked with a synchronous handle, the control circuit comprises a relay J1 coil J1A, a relay J4 coil J4A, a relay J4 normally closed contact J4C, a relay J3 normally open contact J3D, a relay J3 normally closed contact J3E, a relay J5 normally open contact J5B, a relay J1 normally open contact J1D, a relay J2 normally closed contact J2E, a relay J2 normally open contact J2D and a relay J6 normally open contact J6B, one end of the relay J3 normally open contact J3D is connected with one end of a loom reversing contactor coil, the other end of the relay J3 normally open contact J3D is connected with one end of the relay J3E and commonly connected to a loom reversing signal input end, the other end of the relay J3 normally closed contact J3E is connected with one end of the relay J5 normally open contact J5B, the other end of the normally open contact J5B of the relay J5 is connected with one end of a normally open contact J1D of the relay J1 and one end of a coil J1A of the relay J1, the other end of the normally open contact J1D of the relay J1 is connected with one end of a normally open contact of a loom preliminary contactor, the other end of the coil J1A of the relay J1 is connected with one end of a normally closed contact J4C of the relay J4, the other end of the normally closed contact J4C of the relay J4 is connected with one end of a coil J4A of the relay J4 and is commonly connected with one end of a normally open contact J6B of the loom, the other end of the normally open contact J6B of the relay J6 is connected with one end of a normally closed contact J2E of the relay J2, the other end of the normally closed contact J2E of the relay J2 is connected with one end of a normally open contact J2D of the relay J2 and commonly connected to the input end of a positive rotating signal of the loom and the other end of the normally open contact of the preliminary contactor of the loom, the other end of the normally open contact J2D of the relay J2 is connected with one end of the positive transfer contactor coil of the loom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429317.5A CN108418185B (en) | 2018-05-08 | 2018-05-08 | Overcurrent protection device for high-speed injection multi-arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810429317.5A CN108418185B (en) | 2018-05-08 | 2018-05-08 | Overcurrent protection device for high-speed injection multi-arm |
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| Publication Number | Publication Date |
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| CN108418185A CN108418185A (en) | 2018-08-17 |
| CN108418185B true CN108418185B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810429317.5A Active CN108418185B (en) | 2018-05-08 | 2018-05-08 | Overcurrent protection device for high-speed injection multi-arm |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112486149B (en) * | 2020-11-30 | 2023-01-24 | 山东里能鲁西矿业有限公司 | Remote control circuit system of underground explosion-proof battery car |
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