Device and method for testing operation state of actuator in TFT liquid crystal glass production
By designing a trigger test device including detection switches and electrical control systems in the production of TFT liquid crystal glass, the problems of unstable starter operation and poor maintenance technology are solved, automated operation and fault detection are realized, and equipment life is extended , reduces costs and improves productivity.
Patent Information
- Application Number
- CN202411362480.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-01-03
AI Technical Summary
During the production process of TFT liquid crystal glass, the unstable operation of the initiator leads to abnormalities in the cutting glass, affecting service life and production continuity. Due to poor maintenance technology, the equipment will shake during long-term operation of high temperatures, and premature transmission belts and pulleys will occur during long-term operation of high temperatures. Wearing, causing shutdowns, increasing costs and losses.
A device including an actuator test platform, a fixed bracket and an electrical control cabinet was designed. Through 4 detection switches and electrical control systems, the production environment is simulated, and the coordination between the transmission mechanism and the tool head base is monitored and adjusted in real time to achieve automated operation and failures. Test, reduce manual intervention, improve equipment stability and production line automation level.
Effectively simulate the production environment, discover and solve problems in advance, extend the service life of the actuator, improve the yield rate, reduce costs, reduce losses caused by shutdown and maintenance, and improve the safety and efficiency of the production line.
Smart Images
Figure CN119246034A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of TFT glass manufacturing, and in particular to a device and method for testing the operating state of an actuator in the production of TFT liquid crystal glass. Background Art
[0002] In the manufacturing process of TFT liquid crystal glass, it is very important for the actuator to run smoothly to cut the glass, which is related to the quality and yield rate of the entire product. In the two existing production lines, both use a complete set of imported actuators from abroad, which is not only expensive but also the foreign manufacturers of the actuator brands and models are no longer in production.
[0003] Since the actuator is in long-term operation 24 hours a day at high temperature, in order to ensure the stability of the actuator in cutting glass in horizontal motion, it is necessary to regularly replace the worn transmission belt, pulley and cutter head base of the actuator. In order to reduce costs and meet production needs, the damaged parts are all repaired and replaced with domestic brands. In the process of repairing and replacing the transmission belt, pulley and cutter head base, due to differences in people's maintenance technology levels, the actuator will have many problems during operation, such as poor sealing, inadequate adjustment, shaking during horizontal high-speed motion, premature wear of the transmission belt and pulley, and unstable operation of the cutter head base, which will cause abnormal cutting of glass, thus affecting the service life of the actuator and production continuity, causing downtime and production suspension, and bringing irreparable losses to the company. Summary of the invention
[0004] The purpose of the present invention is to provide a device and method for testing the operating state of an actuator in the production of TFT liquid crystal glass, so as to overcome the problems existing in the prior art, effectively simulate the operating state and operating speed in production, adjust the coordination between the transmission mechanism and the cutter head base, discover problems in advance, solve them offline, and ensure that the actuator is stable in use during machine production, thereby meeting technical requirements, improving yield rate and service life, and reducing costs.
[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A device for testing the operating state of an actuator in the production of TFT liquid crystal glass, comprising an actuator test platform, a fixed bracket and an electrical control cabinet, wherein the actuator test platform is mounted on the upper part of the fixed bracket, the electrical control cabinet is mounted on one side of the fixed bracket, and the electrical control cabinet controls the actuator test platform; the actuator test platform comprises an actuator, a transmission mechanism is arranged on the actuator, and a cutter head base is arranged on the transmission mechanism; four detection switches are installed at the front of the actuator, which are a first limit detection switch, a second forward detection switch, a third reverse detection switch and a fourth limit detection switch in sequence; the actuator is connected to a motor through a coupling, and a reducer is installed at the upper part of the motor; a start button is arranged on the outer side of the electrical control cabinet, and a frequency converter is installed inside the electrical control cabinet, the frequency converter is connected to a relay, and the relay is connected to a PLC; Furthermore, the reducer is mounted on a fixed bracket; Further, the actuator is connected to a frequency converter via a motor; Furthermore, an emergency stop button and a stop button are also provided on the outside of the electrical control cabinet; Furthermore, the motor is provided with a power line, and the four detection switches are provided with signal lines, the power line of the motor is connected to the frequency converter inside the electrical control cabinet, and the signal lines of the four detection switches are connected to the PLC inside the electrical control cabinet; Furthermore, the transmission mechanism includes a transmission wheel, and the transmission wheel is connected with a transmission belt.
[0006] A method for testing the operating state of an actuator in the production of TFT liquid crystal glass, based on the above-mentioned device for testing the operating state of the actuator, comprises the following steps: (1) Press the start button on the outside of the electrical control cabinet to input the start signal into the PLC. The PLC outputs a signal to control the relay to energize. The relay energizes the inverter to output a forward signal. After receiving the signal, the motor starts to rotate forward. The motor drives the cutter head base to move horizontally forward on the actuator. (2) When the cutter head base moves to the third reverse detection switch position, the third reverse detection switch is triggered, and the third reverse detection switch sends an in-position signal, which is delayed and started. The PLC receives the in-position signal and outputs a signal to control the relay to close. The relay closes and controls the inverter to output a reverse signal. After receiving the reverse signal, the motor starts to reverse, and the motor drives the cutter head base to perform horizontal reverse movement on the actuator. If the cutter head base moves to the second forward detection switch position, execute (3); If the cutter head base moves to the first limit detection switch position, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; (3) When the cutter head base moves to the second forward detection switch position, the second forward detection switch is triggered, and the second forward detection switch sends out an in-position signal, which is delayed and started. The PLC receives the in-position signal and outputs a signal to control the relay to close. The relay closes and controls the inverter to output a forward signal. After the motor receives the forward signal, it starts to run forward, and the motor drives the cutter head base to perform horizontal forward motion on the actuator. If the cutter head base moves to the third reverse detection switch position, execute (2) again; If the cutter head base moves to the fourth limit detection switch position, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; Furthermore, the (1) is specifically as follows: the start button on the outside of the electrical control cabinet is pressed, the start signal is input into the PLC, the program inside the PLC component starts to execute, the output signal controls the relay to be energized, the relay is energized to output a positive signal to control the inverter to output a positive signal, after the motor receives the positive signal, it cooperates with the coupling to run in the forward direction through the ratio change of the reducer, the forward rotation of the motor drives the transmission mechanism of the actuator to operate, and the cutter head base performs horizontal positive motion on the transmission mechanism; Further, the (2) is specifically as follows: when the cutter head base moves to the third reverse detection switch position, the third reverse detection switch is triggered, the third reverse detection switch sends an in-position signal, the delay starts, the PLC receives the in-position signal, and outputs a signal to control the relay to be energized, the relay is energized to output a reverse signal to control the inverter to output a reverse signal, after receiving the reverse signal, the motor cooperates with the coupling to reversely run through the speed reducer ratio, the motor reverses to drive the transmission mechanism of the actuator to operate, and the cutter head base performs horizontal reverse motion on the transmission mechanism; Furthermore, (3) is specifically as follows: when the cutter head base moves to the second forward rotation detection switch position, the second forward rotation detection switch is triggered, the second forward rotation detection switch sends an in-position signal, a delay starts, the PLC receives the in-position signal, and outputs a signal to control the relay to energize, the relay energizes and outputs a forward signal to control the inverter to output a forward signal, after receiving the forward signal, the motor cooperates with the coupling to run in forward rotation through the reducer ratio change, the forward rotation of the motor drives the transmission mechanism of the actuator to operate, and the cutter head base performs horizontal forward motion on the transmission mechanism.
[0007] The above technical solution has the following advantages or beneficial effects: The present invention provides a device for testing the operating state of an actuator in the production of TFT liquid crystal glass. Through the combination of the actuator, a transmission mechanism, a cutter head base, four detection switches and other components, the device can highly simulate the transmission and processing process of the TFT liquid crystal glass in actual production. This simulation is not limited to the similarity of the physical structure, but also includes the simulation of the operating speed and dynamic characteristics, so that the test results are closer to the actual production situation; by installing four detection switches at the front of the actuator, the operating state of the actuator can be monitored in real time; by setting a first limit detection switch and a fourth limit detection switch, when the actuator operation is abnormal, that is, the forward rotation is stopped When the actuator reaches the fourth limit detection switch or reverses to the first limit detection switch, the device stops running urgently, ensuring that the actuator can be sensed in time at the limit position of the normal operating trajectory. Once the actuator exceeds these limit positions due to a malfunction or improper operation, the device will immediately trigger the emergency stop mechanism, effectively preventing equipment damage, production accidents and even personal injuries caused by the actuator losing control, significantly improving the safety performance of the production line; by setting the second forward detection switch and the third reverse detection switch, the normal operation of the device test is guaranteed. When the cutter head base runs to the position of the second forward detection switch, it performs horizontal forward movement. When the cutter head base moves to the third reversal detection switch position, it performs horizontal reverse movement. The automatic detection and feedback mechanism enables the device to automatically adjust its movement direction according to the position of the cutter head base without manual intervention, which not only reduces the labor intensity of the operator, but also improves the automation level and intelligence of the production line. Through the control of the electrical control cabinet, the automatic operation of the actuator test device is realized, which not only improves the test efficiency, but also reduces the errors and uncertainties caused by human operation; the key control components such as the frequency converter, relay and PLC are centrally arranged inside the electrical control cabinet, which is not only conducive to the overall layout and wiring of the system, but also convenient for subsequent maintenance and expansion work. The maintenance personnel can easily approach these components for inspection, repair or replacement; through simulated operation and testing, it is ensured that the coordinated work between the components reaches the optimal state, which not only improves the operation stability and reliability of the actuator, but also improves the efficiency and yield rate of the overall production line; the present invention can timely discover possible problems of the actuator during operation, such as speed fluctuation, position offset, abnormal shutdown, etc., so as to allow production personnel to troubleshoot and solve problems outside the production line, complete the actuator maintenance task with quality and quantity, and avoid losses caused by shutdown maintenance on the production line.
[0008] Furthermore, the reducer effectively reduces the output speed of the motor, making the movement of the actuator smoother and more controllable, helping to reduce vibration and impact caused by high-speed movement, and improving the operating stability and reliability of the entire device.
[0009] Furthermore, by directly setting the start button, emergency stop button and stop button on the outside of the electrical control cabinet, the start button allows the operator to easily reach and start; the emergency stop button is a device that quickly cuts off all power supplies or the power supply of key equipment in an emergency. Its design allows the operator to quickly press the button to immediately stop the operation of the actuator in the event of an emergency or danger, thereby effectively preventing the situation from deteriorating and protecting the safety of personnel and equipment; the stop button provides convenience for normal shutdown operations. When the operator needs to stop the operation of the actuator, he can easily press the stop button to achieve a smooth shutdown of the equipment. This design reduces operational complexity and improves work efficiency.
[0010] Furthermore, the frequency converter can accurately control the motor's speed, torque and other parameters according to the instructions issued by the PLC, thereby achieving smooth starting, acceleration, deceleration and stopping of the motor, reducing mechanical shock and energy consumption, and improving the motor's operating efficiency and stability. At the same time, the high reliability and anti-interference ability of the PLC also ensure the stable operation of the entire control system; through the PLC's reception and processing of detection switch signals, the system can automatically monitor the status or position of the equipment, and automatically adjust the motor's operating status according to preset logic without human intervention, thereby greatly improving the automation level of the production or operation process.
[0011] The present invention provides a method for testing the operating status of an actuator in the production of TFT liquid crystal glass. In the absence of a stop signal, the testing device can automatically and cyclically execute steps (2) and (3), that is, the motor drives the cutter head base to move back and forth on the actuator. This cyclic test helps to comprehensively evaluate the performance and stability of the actuator under different operating conditions, ensuring its reliable operation in actual production. By detecting the triggering of a switch and real-time monitoring of a PLC, the testing device can promptly detect and report possible faults or abnormal conditions that may occur during the operation of the actuator. This fault warning and diagnosis function helps production personnel to take timely measures to solve the problem, thereby preventing the fault from expanding and causing a greater impact on production.
[0012] Furthermore, the execution of the internal program of the PLC component realizes the programmed control of the test process, improving the accuracy and reliability of the test; after the motor receives the positive signal, it cooperates closely with the transmission components such as the coupling and the reducer to realize the precise transmission of power and the reasonable adjustment of the speed; the transmission mechanism operates stably under the drive of the motor, and then drives the cutter head base to move synchronously, ensuring the continuity and stability of the test; by simulating the operation process of the transmission mechanism in actual production, it can more realistically reflect the operating status of the actuator on the production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1It is a schematic diagram of the structure of a device for testing the operating state of an actuator in the production of TFT liquid crystal glass according to the present invention; Figure 2 It is a schematic diagram of the internal structure of an electrical control cabinet of a device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to the present invention; Figure 3 It is a side view of an electrical control cabinet of a device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to the present invention; In the figure, 1-actuator; 2-transmission mechanism; 3-cutter base; 4-detection switch; 4-1-first limit detection switch; 4-2-second forward detection switch; 4-3-third reverse detection switch; 4-4-fourth limit detection switch; 5-fixed bracket; 6-electrical control cabinet; 7-motor; 8-coupling; 9-reducer. DETAILED DESCRIPTION
[0014] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it. In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention. It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0015] Embodiment 1: like Figure 1 As shown, the present invention provides a device for testing the operating state of an actuator in the production of TFT liquid crystal glass, comprising an actuator test platform, a fixed bracket 5 and an electrical control cabinet 6, wherein the actuator test platform is mounted on the upper part of the fixed bracket 5, the electrical control cabinet 6 is mounted on one side of the fixed bracket 5, and the electrical control cabinet 6 controls the actuator test platform; Preferably, the actuator test platform includes an actuator 1, on which a transmission mechanism 2 is provided, the transmission mechanism 2 includes a transmission wheel, the transmission wheel is connected with a transmission belt, and a cutter head base 3 is provided on the transmission mechanism 2; four detection switches 4 are installed at the front of the actuator 1, which are the first limit detection switch 4-1, the second forward detection switch 4-2, the third reverse detection switch 4-3 and the fourth limit detection switch 4-4 in sequence; the actuator 1 is connected to the motor 7 through a coupling 8, the motor 7 is connected with a frequency converter, a reducer 9 is installed on the upper part of the motor 7, and the reducer 9 is installed on the fixed bracket 5; Preferably, the motor 7 is provided with a power line, and the four detection switches 4 are all provided with a signal line.
[0016] like Figure 2 As shown, a frequency converter is installed inside the electrical control cabinet 6, the frequency converter is connected to a relay, and the relay is connected to a PLC; Preferably, the power line of the motor 7 is connected to the frequency converter inside the electrical control cabinet 6 , and the signal lines of the four detection switches 4 are all connected to the PLC inside the electrical control cabinet 6 .
[0017] like Figure 3 As shown, an emergency stop button, a start button and a stop button are arranged on the outside of the electrical control cabinet 6.
[0018] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention also provides a method for testing the operating state of an actuator in the production of TFT liquid crystal glass, comprising the following steps: (1) Press the start button on the outside of the electrical control cabinet 6 to input the start signal into the PLC. The PLC outputs a signal to control the relay to energize. The relay energizes the inverter to output a forward signal. After receiving the signal, the motor 7 starts to rotate forward. The motor 7 drives the cutter head base 3 to move horizontally forward on the actuator 1. (2) When the cutter head base 3 moves to the position of the third reverse detection switch 4-3, the third reverse detection switch 4-3 is triggered, and the third reverse detection switch 4-3 sends out an in-position signal, and the delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to be attracted. The relay is attracted to control the inverter to output a reverse transmission signal. After receiving the reverse transmission signal, the motor 7 starts to reversely run, and the motor 7 drives the cutter head base 3 to perform horizontal reverse movement on the actuator 1; If the cutter head base 3 moves to the second forward rotation detection switch 4-2 position, execute (3); If the cutter head base 3 moves to the position of the first limit detection switch 4-1, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; (3) When the cutter head base 3 moves to the position of the second forward rotation detection switch 4-2, the second forward rotation detection switch 4-2 is triggered, and the second forward rotation detection switch 4-2 sends out an in-position signal, and the delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to be attracted. The relay is attracted to control the inverter to output a forward transmission signal. After receiving the forward transmission signal, the motor 7 starts to rotate forward, and the motor 7 drives the cutter head base 3 to perform horizontal forward movement on the actuator 1; If the cutter head base 3 moves to the third reversal detection switch 4-3 position, execute (2) again; If the cutter head base 3 moves to the fourth limit detection switch 4-4 position, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; Preferably, (1) is specifically as follows: the start button on the outside of the electrical control cabinet 6 is pressed, the start signal is input into the PLC, the program inside the PLC component starts to execute, the output signal controls the relay to be energized, the relay is energized to output a positive signal to control the inverter to output a positive signal, after receiving the positive signal, the motor 7 cooperates with the coupling 8 to rotate forward through the ratio-changing reducer 9, the motor 7 rotates forward to drive the transmission mechanism 2 of the actuator 1 to operate, and the cutter head base 3 performs horizontal positive motion on the transmission mechanism 2; Preferably, (2) is specifically as follows: when the cutter head base 3 moves to the position of the third reverse detection switch 4-3, the third reverse detection switch 4-3 is triggered, the third reverse detection switch 4-3 sends an in-position signal, and the delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to be energized. The relay is energized to output a reverse signal to control the inverter to output a reverse signal. After receiving the reverse signal, the motor 7 cooperates with the coupling 8 to reversely operate through the reducer 9. The motor 7 reverses to drive the transmission mechanism 2 of the actuator 1 to operate, and the cutter head base 3 performs horizontal reverse motion on the transmission mechanism 2. Preferably, (3) is specifically as follows: when the cutter head base 3 runs to the position of the second forward rotation detection switch 4-2, the second forward rotation detection switch 4-2 is triggered, the second forward rotation detection switch 4-2 sends an in-position signal, and the delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to energize. The relay energizes and outputs a forward signal to control the inverter to output a forward signal. After receiving the forward signal, the motor 7 cooperates with the coupling 8 to run in forward rotation through the reducer 9. The forward rotation of the motor 7 drives the transmission mechanism 2 of the actuator 1 to operate, and the cutter head base 3 performs horizontal forward motion on the transmission mechanism 2.
[0019] Embodiment 2: like Figure 1As shown, the present invention provides a device for testing the operating state of an actuator in the production of TFT liquid crystal glass, comprising an actuator test platform, a fixed bracket 5 and an electrical control cabinet 6, wherein the electrical control cabinet 6 controls the actuator test platform; the actuator test platform is installed on the upper part of the fixed bracket 5, and the electrical control cabinet 6 is installed on the front part of the fixed bracket 5, so that the electrical control cabinet 6 and the fixed bracket 5 are integrated and can move freely as a whole; Preferably, the actuator test platform includes an actuator 1, on which a transmission mechanism 2 is arranged, the transmission mechanism 2 includes a transmission wheel, the transmission wheel is connected with a transmission belt, and a cutter head base 3 is arranged on the transmission mechanism 2; four detection switches 4 are installed on the front of the actuator 1, which are the first limit detection switch 4-1, the second forward detection switch 4-2, the third reverse detection switch 4-3 and the fourth limit detection switch 4-4, respectively. By setting the first limit detection switch 4-1 and the fourth limit detection switch 4-4, when the actuator 1 runs abnormally, that is, it runs forward to the fourth limit detection switch 4-4 or reverses to the first limit detection switch 4-1, the device stops running urgently, ensuring that the actuator 1 can be sensed in time at the extreme position of the normal operating trajectory. Once the actuator 1 is abnormal due to some reason If the failure or improper operation exceeds these limit positions, the device will immediately trigger the emergency stop mechanism, effectively preventing equipment damage, production accidents and even personal injuries caused by the loss of control of the actuator 1, and significantly improving the safety performance of the production line; by setting the second forward detection switch 4-2 and the third reverse detection switch 4-3, the normal operation of the device test is guaranteed. When the cutter head base 3 runs to the position of the second forward detection switch 4-2, it moves forward horizontally, and when the cutter head base 3 runs to the position of the third reverse detection switch 4-3, it moves reversely horizontally. The automatic detection and feedback mechanism enables the device to automatically adjust its movement direction according to the position of the cutter head base 3 without manual intervention, which not only reduces the labor intensity of the operator, but also improves the automation level and intelligence level of the production line; Preferably, the actuator 1 is connected to the motor 7 through a coupling 8, the motor 7 is connected to a frequency converter, a reducer 9 is installed on the upper part of the motor 7, and the reducer 9 is installed on the fixed bracket 5. The reducer 9 effectively reduces the output speed of the motor 7, making the movement of the actuator 1 more stable and controllable, helping to reduce the vibration and impact caused by high-speed movement, and improving the operation stability and reliability of the entire device; Preferably, the fixing bracket 5 is made of stainless steel 800 mm square steel welded; Preferably, the transmission belt is made of a steel belt on the outside and a leather belt on the inside.
[0020] like Figure 2As shown, the electrical control cabinet 6 is equipped with QF-power circuit breaker, PS-DC power supply, KA-relay, inverter, PLC, wire duct, OA module and DO module; the electrical control cabinet 6 controls the actuator 1 test device to realize the automatic operation, which not only improves the test efficiency, but also reduces the error and uncertainty caused by human operation; the key control components such as inverter, relay and PLC are centrally arranged inside the electrical control cabinet 6, which is not only conducive to the overall layout and wiring of the system, but also convenient for subsequent maintenance and expansion work, and the maintenance personnel can easily approach these components for inspection, repair or replacement; Preferably, the power line of the motor 7 and the signal line of the detection switch 4 are tied and laid along the fixed bracket 5 and connected to the electrical control cabinet 6; the power line of the motor 7 is connected to the frequency converter, and the signal line of the detection switch 4 is connected to the PLC; Preferably, the signal line connectors of the detection switch 4 are connected by male and female connectors; Preferably, the components specifically selected are 24V DC power supply, 24V relay, Schneider 1.5KW inverter and Mitsubishi PLC.
[0021] like Figure 3 As shown, a start button, a stop button and an emergency stop button are arranged on the outside of the electrical control cabinet 6.
[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention also provides a method for testing the operating state of an actuator in the production of TFT liquid crystal glass, comprising the following steps: (1) Press the start button on the outside of the electrical control cabinet 6 to input the start signal into the PLC. The PLC outputs a signal to control the relay to energize. The relay energizes the inverter to output a forward signal. After receiving the signal, the motor 7 starts to rotate forward. The motor 7 drives the cutter head base 3 to move horizontally forward on the actuator 1. (2) When the cutter head base 3 moves to the position of the third reverse detection switch 4-3, the third reverse detection switch 4-3 is triggered, and the third reverse detection switch 4-3 sends out an in-position signal. At this time, the cutter head base 3 starts to delay for 2 seconds, the PLC receives the in-position signal, and outputs a signal to control the relay to be energized. The relay is energized to control the inverter to output a reverse transmission signal. After receiving the reverse transmission signal, the motor 7 starts to reverse, and the motor 7 drives the cutter head base 3 to perform horizontal reverse movement on the actuator 1; If the cutter head base 3 moves to the second forward rotation detection switch 4-2 position, execute (3); If the cutter head base 3 moves to the position of the first limit detection switch 4-1, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; (3) When the cutter head base 3 moves to the position of the second forward rotation detection switch 4-2, the second forward rotation detection switch 4-2 is triggered, and the second forward rotation detection switch 4-2 sends out an in-position signal. The cutter head base 3 starts to delay for 2 seconds. The PLC receives the in-position signal and outputs a signal to control the relay to be energized. The relay is energized to control the inverter to output a forward transmission signal. After receiving the forward transmission signal, the motor 7 starts to rotate forward, and the motor 7 drives the cutter head base 3 to perform horizontal forward movement on the actuator 1. If the cutter head base 3 moves to the third reversal detection switch 4-3 position, execute (2) again; If the cutter head base 3 moves to the fourth limit detection switch 4-4 position, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; Preferably, (1) is specifically as follows: a start button on the outside of the electrical control cabinet 6 is pressed, a start signal is input into the PLC, the program inside the PLC component starts to execute, the output signal controls the relay to be energized, the relay is energized to output a positive transmission signal to control the inverter to output a positive transmission signal, after receiving the positive transmission signal, the motor 7 cooperates with the coupling 8 to rotate forward through the ratio-changing reducer 9, the motor 7 rotates forward to drive the transmission belt and transmission wheel of the transmission mechanism 2 in the actuator 1 to operate, and the cutter head base 3 performs horizontal positive motion on the steel belt of the transmission belt; Preferably, (2) is specifically as follows: when the cutter head base 3 runs to the position of the third reverse detection switch 4-3, the third reverse detection switch 4-3 is triggered, the third reverse detection switch 4-3 sends an in-position signal, the cutter head base 3 starts to delay for 2 seconds, the PLC receives the in-position signal, and outputs a signal to control the relay to energize, the relay energizes and outputs a reverse signal to control the inverter to output a reverse signal, after receiving the reverse signal, the motor 7 cooperates with the coupling 8 to reversely run through the reducer 9, the motor 7 reverses to drive the drive belt and drive wheel of the transmission mechanism 2 in the actuator 1 to run, and the cutter head base 3 performs horizontal reverse motion on the steel belt of the drive belt; Preferably, (3) is specifically as follows: when the cutter head base 3 runs to the position of the second forward rotation detection switch 4-2, the second forward rotation detection switch 4-2 is triggered, and the second forward rotation detection switch 4-2 sends out an in-position signal. The cutter head base 3 starts to delay for 2 seconds, and the PLC receives the in-position signal and outputs a signal to control the relay to energize. The relay energizes and outputs a forward transmission signal to control the inverter to output a forward transmission signal. After receiving the forward transmission signal, the motor 7 cooperates with the coupling 8 to run in forward rotation through the reducer 9. The forward rotation of the motor 7 drives the transmission belt and transmission wheel of the transmission mechanism 2 in the actuator 1 to operate, and the cutter head base 3 performs horizontal forward motion on the steel belt of the transmission belt.
[0023] The structure and working principle of the present invention are further described below: The purpose of the present invention is to provide a device and method for testing the operating state of an actuator in the production of TFT liquid crystal glass. When the device is used, the electrical control cabinet 6 is powered through the power circuit breaker, the DC power supply is powered and outputs 24V, the start button is pressed to input a start signal to the PLC, the program written inside the PLC component begins to execute, the output signal controls the relay to be attracted, the relay is attracted and outputs a positive signal to control the inverter to output a positive signal, after receiving the positive signal, the motor 7 cooperates with the coupling 8 to run in a forward rotation through the reducer 9 with a variable ratio, the motor 7 drives the transmission belt and the transmission wheel of the transmission mechanism 2 in the actuator 1 to run in a forward rotation, and the cutter head base 3 performs horizontal forward motion on the steel belt of the transmission belt; When the cutter head base 3 runs to the position of the third group of reverse detection switches 4-3, the third group of reverse detection switches 4-3 is triggered, and the third group of reverse detection switches 4-3 sends out an in-place signal. The cutter head base 3 starts to delay for 2 seconds, and the PLC receives the in-place signal and outputs a signal to control the relay to energize. The relay energizes and outputs a reverse signal to control the inverter to output a reverse signal. After receiving the reverse signal, the motor 7 cooperates with the coupling 8 to reversely run through the reducer 9. The motor 7 reverses and drives the transmission belt and transmission wheel of the transmission mechanism 2 in the actuator 1 to run, and the cutter head base 3 performs horizontal reverse movement on the steel belt of the transmission belt; if the cutter head base 3 runs to the position of the first limit detection switch 4-1, the device stops running; if the stop button is pressed, the PLC receives the stop signal and the device stops running; When the cutter head base 3 runs to the position of the second forward rotation detection switch 4-2, the second forward rotation detection switch 4-2 is triggered, and the second forward rotation detection switch 4-2 sends out an in-position signal. The cutter head base 3 starts to delay for 2 seconds, and the PLC receives the in-position signal and outputs a signal to control the relay to be energized. The relay is energized to output a forward transmission signal to control the inverter to output a forward transmission signal. After receiving the forward transmission signal, the motor 7 cooperates with the coupling 8 to run in a forward rotation through the reducer 9 with a variable ratio. The forward rotation of the motor 7 drives the transmission belt and the transmission wheel of the transmission mechanism 2 in the actuator 1 to operate, and the cutter head base 3 performs horizontal forward motion on the steel belt of the transmission belt. If the cutter head base 3 runs to the position of the third reverse detection switch 4-3, the reverse operation is started again. When the cutter head base 3 runs to the position of the second group of forward detection switches 4-2, the forward operation is triggered and started again, thereby performing forward and reverse cycle operation; If the cutter head base 3 moves to the fourth limit detection switch 4-4 position, the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running.
[0024] The device of the present invention can also adjust the speed according to the actual production running speed to restore the simulated actual speed; if a fault occurs during operation, the emergency stop button can be pressed to reset it.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A device for testing the operating status of an actuator in the production of TFT liquid crystal glass, characterized in that: The actuator test platform comprises an actuator test platform, a fixed bracket (5) and an electrical control cabinet (6), wherein the actuator test platform is mounted on the upper part of the fixed bracket (5), the electrical control cabinet (6) is mounted on one side of the fixed bracket (5), and the electrical control cabinet (6) controls the actuator test platform; The actuator test platform comprises an actuator (1), a transmission mechanism (2) is arranged on the actuator (1), and a cutter head base (3) is arranged on the transmission mechanism (2); four detection switches (4) are installed at the front of the actuator (1), which are a first limit detection switch (4-1), a second forward detection switch (4-2), a third reverse detection switch (4-3) and a fourth limit detection switch (4-4); the actuator (1) is connected to the motor (7) through a coupling (8), and a reducer (9) is installed on the upper part of the motor (7); A start button is arranged on the outside of the electrical control cabinet (6), and a frequency converter is installed inside the electrical control cabinet (6), the frequency converter is connected to a relay, and the relay is connected to a PLC.
2. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 1, characterized in that: The reducer (9) is mounted on the fixed bracket (5).
3. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 1, characterized in that: The actuator (1) is connected to a frequency converter via a motor (7).
4. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 1, characterized in that: An emergency stop button and a stop button are also provided on the outside of the electrical control cabinet (6).
5. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 1, characterized in that: The motor (7) is provided with a power line, and the four detection switches (4) are all provided with signal lines. The power line of the motor (7) is connected to the frequency converter inside the electrical control cabinet (6), and the signal lines of the four detection switches (4) are all connected to the PLC inside the electrical control cabinet (6).
6. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 1, characterized in that: The transmission mechanism (2) comprises a transmission wheel, and the transmission wheel is connected to a transmission belt.
7. A method for testing the operating state of an actuator in the production of TFT liquid crystal glass, based on the device for testing the operating state of an actuator according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1, press the start button on the outside of the electrical control cabinet (6), the start signal is input to the PLC, the PLC outputs a signal to control the relay to be attracted, the relay is attracted to control the inverter to output a forward signal, the motor (7) receives the signal and starts to run forward, the motor (7) drives the cutter head base (3) to move horizontally forward on the actuator (1); S2, when the cutter head base (3) moves to the position of the third reverse detection switch (4-3), the third reverse detection switch (4-3) is triggered, the third reverse detection switch (4-3) sends an in-position signal, delays starting, the PLC receives the in-position signal and outputs a signal to control the relay to close, the relay closes to control the inverter to output a reverse transmission signal, the motor (7) starts to reverse after receiving the reverse transmission signal, and the motor (7) drives the cutter head base (3) to perform horizontal reverse movement on the actuator (1); If the cutter head base (3) moves to the second forward detection switch (4-2) position, execute S3; If the cutter head base (3) moves to the position of the first limit detection switch (4-1), the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running; S3, when the cutter head base (3) moves to the position of the second forward rotation detection switch (4-2), the second forward rotation detection switch (4-2) is triggered, the second forward rotation detection switch (4-2) sends an in-position signal, delays starting, the PLC receives the in-position signal, and outputs a signal to control the relay to be attracted, the relay is attracted to control the inverter to output a forward transmission signal, the motor (7) starts to rotate forward after receiving the forward transmission signal, and the motor (7) drives the cutter head base (3) to perform horizontal forward movement on the actuator (1); If the cutter head base (3) moves to the position of the third reverse detection switch (4-3), S2 is executed again; If the cutter head base (3) moves to the position of the fourth limit detection switch (4-4), the device stops running; If the stop button is pressed, the PLC receives a stop signal and the device stops running.
8. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 7, characterized in that: Specifically, S1 is as follows: the start button on the outside of the electrical control cabinet (6) is pressed, the start signal is input into the PLC, the program inside the PLC component starts to execute, the output signal controls the relay to be energized, the relay is energized to output a positive transmission signal to control the inverter to output a positive transmission signal, after the motor (7) receives the positive transmission signal, it cooperates with the coupling (8) to rotate forward through the speed reducer (9) with a variable ratio, the motor (7) rotates forward to drive the transmission mechanism (2) of the actuator (1), and the cutter head base (3) performs horizontal positive movement on the transmission mechanism (2).
9. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 7, characterized in that: Specifically, S2 is as follows: when the cutter head base (3) moves to the position of the third reverse detection switch (4-3), the third reverse detection switch (4-3) is triggered, the third reverse detection switch (4-3) sends an in-position signal, and a delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to be attracted. The relay is attracted and outputs a reverse signal to control the inverter to output a reverse signal. After receiving the reverse signal, the motor (7) cooperates with the coupling (8) to reversely operate through the speed reducer (9). The motor (7) reverses and drives the transmission mechanism (2) of the actuator (1) to operate, and the cutter head base (3) performs horizontal reverse movement on the transmission mechanism (2).
10. The device for testing the operating status of an actuator in the production of TFT liquid crystal glass according to claim 7, characterized in that: Specifically, S3 is as follows: when the cutter head base (3) moves to the position of the second forward rotation detection switch (4-2), the second forward rotation detection switch (4-2) is triggered, the second forward rotation detection switch (4-2) sends an in-position signal, and a delay starts. The PLC receives the in-position signal and outputs a signal to control the relay to be energized. The relay is energized to output a forward transmission signal to control the frequency converter to output a forward transmission signal. After receiving the forward transmission signal, the motor (7) cooperates with the coupling (8) to rotate forward through the speed reducer (9) at a variable ratio. The forward rotation of the motor (7) drives the transmission mechanism (2) of the actuator (1) to operate, and the cutter head base (3) performs horizontal forward motion on the transmission mechanism (2).