TFT (Thin Film Transistor) substrate glass traction roller tension experiment device and method

Abstract

The invention belongs to the technical field of forming equipment of TFT (Thin Film Transistor) substrate glass, and particularly relates to a TFT substrate glass traction roller tension experiment device and method. The device mainly comprises a traction roller, a servo motor is installed at one end of the traction roller, a load brake is installed at the other end of the traction roller, a load generator is further installed on the traction roller, and the servo motor is connected with a PLC control system. The PLC control system drives the servo motor to start, the servo motor drives the traction roller to rotate, an operator controls the load generator to apply different loads to the traction roller, a constant load is determined between the maximum load and the minimum load, and a full-closed-loop automatic adjustment mechanism is achieved. After the experiment is finished, the load generator is started to apply the known load in the experiment process to the traction roller to verify the load value and the torque value, and the PLC control system can recover to the set optimal working state in the shortest time by quickly processing and responding the acquired information, so that the self-adaptive capability of the system is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of TFT substrate glass forming equipment, and in particular relates to a TFT substrate glass pulling roller tension test device and method. Background Art

[0002] The substrate glass forming process consists of a forming heating system and a forming motion system. The forming motion system includes a lifting system and a side-pulling roller system. The side-pulling and side-pulling roller system is responsible for clamping and pulling down the glass that has been initially formed through the overflow bricks of the muffle furnace into a glass product of a certain specification (thickness, length and width). During the pulling down process of the glass plate in the heating furnace, the change in tension between the pulling roller and the glass will cause the wear of the pulling roller to increase, affecting the roller life. At the same time, the wear of the roller and the change in tension can easily cause the glass to crack, warp, stress and other defects, which may cause the glass to break. Summary of the invention

[0003] The present invention provides a TFT substrate glass traction roller tension test device and method to solve the technical problem in the prior art that the change of tension between the traction roller and the glass will cause the traction roller to wear more severely, shorten the roller life and cause glass breakage.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: A TFT substrate glass traction roller tension test device comprises a traction roller, a servo motor is installed at one end of the traction roller, a load generator is installed on the side of the traction roller, a torque sensor is also installed on the traction roller, and the torque sensor and the servo motor are both connected to a PLC control system.

[0005] A reducer is also installed on one end of the traction roller where the servo motor is installed. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the traction roller.

[0006] A load brake is also installed at one end of the traction roller.

[0007] The PLC control system is connected to a display, and the PLC control system receives data monitored in real time by the torque sensor and displays it on the display.

[0008] The traction roller is placed on the upper surface of the experimental platform.

[0009] A TFT substrate glass traction roller tension test method, a PLC control system starts a servo motor and adjusts its speed, the servo motor drives the traction roller to rotate, and starts a load generator to apply different loads to the traction roller. Under different load conditions, a torque sensor monitors the torque value change data of the traction roller in real time and sends the torque value change data to the PLC control system, and the PLC control system analyzes and processes the torque value change data.

[0010] The servo motor transmits power to the traction roller after conversion through the reducer.

[0011] The torque sensor monitors the load and torque values ​​on the traction roller and verifies the load and torque values ​​on the traction roller in conjunction with the load brake.

[0012] The PLC control system analyzes and processes the received torque value data under different loads, and further adjusts the speed of the servo motor.

[0013] The PLC control system transmits the torque value data of the traction roller under different loads monitored by the torque sensor in real time to the display for data display.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a TFT substrate glass traction roller tension test device. Furthermore, the combination of the speed reducer and the servo motor increases the stability of the transmission system, reduces the starting impact force, and thus reduces the degree of wear on the surface material of the traction roller.

[0015] Furthermore, the experimental device is placed on an experimental platform, which ensures stability during the entire testing process and helps to obtain more accurate and reliable experimental data.

[0016] Furthermore, the introduction of torque sensors can monitor and feedback the torque information generated during the traction process in real time, providing a basis for subsequent adjustments and ensuring that the ideal tension state can be maintained throughout the entire operating range.

[0017] Furthermore, the PLC control system is connected to a display, which allows staff to intuitively view the current system working status and various parameter indicators, identify problems in a timely manner and make corresponding adjustments.

[0018] Furthermore, the present invention discloses a TFT substrate glass traction roller tension test method. Through a TFT substrate glass traction roller tension test device, the tension change between the traction roller and the glass can be simulated to test the traction force and torque changes under maximum load and minimum load conditions.

[0019] Furthermore, the experimental process based on PLC control realizes automated operation, which not only improves work efficiency, but also reduces human factors, making the conditions of each experiment more consistent and controllable, which is conducive to improving the comparability and accuracy of the results.

[0020] Furthermore, the way the reducer transmits power further enhances the overall coordination and reliability of the mechanical structure, which is of great significance for protecting the expensive TFT substrate.

[0021] Furthermore, the collection and transmission of torque value data forms a complete data link, supporting deeper data analysis and mining, helping to discover potential problems and take preventive measures.

[0022] Furthermore, a constant torque mode is established between the maximum and minimum values ​​to realize a fully closed-loop automatic adjustment mechanism, so that the same pair of traction rollers maintain the same traction force, thereby achieving constant tension on the glass plate. By quickly processing and responding to the collected information, it can restore to the set optimal working state in the shortest time, greatly improving the system's adaptability.

[0023] Furthermore, by continuously adjusting the speed and torque value of the servo motor, the same pair of traction rollers can maintain the same traction force, thereby achieving constant tension on the glass sheet. This can not only improve the automation control level of the molding motion equipment, but also improve the stability of the quality of the molded products.

[0024] Furthermore, the data display function makes all key performance indicators clear at a glance, which is convenient for technical personnel to make judgments based on actual conditions, and also provides valuable first-hand information for subsequent research. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 : Schematic diagram of the traction roller tension test device; Figure 2 : Schematic diagram of control logic of traction roller tension experimental device.

[0026] Explanation of reference numerals: 1. Experimental platform; 2. Servo motor; 3. Reducer; 4. Traction roller; 5. Torque sensor; 6. Load generator; 7. Load brake component; 8. PLC control system; 9. Display. DETAILED DESCRIPTION

[0027] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] See also Figure 1 and Figure 2The experimental platform 1 serves as the basic support of the entire experimental device. The experimental platform 1 is placed on a stable bottom surface. A traction roller 4 is arranged above the upper surface of the experimental platform 1. A load brake 7 is installed at one end of the traction roller 4, and a load generator 6 is installed on the side of the traction roller 4. A servo motor 2 and a reducer 3 are installed at the other end of the traction roller 4. The output shaft of the servo motor 2 is connected to the input shaft of the reducer 3, and the output shaft of the reducer 3 is connected to the traction roller 4. A torque sensor 5 is also installed on the traction roller 4. The torque sensor 5 and the servo motor are both connected to the PLC control system 8, and the PLC control system 8 is also connected to a display 9, such as Figure 2 As shown, the torque sensor 5 monitors the torque value data of the traction roller 4, and the torque sensor 5 sends the torque value data to the PLC control system 8. The PLC control system 8 adjusts the servo motor 2 according to the torque value data and sends the data to the display 9 for display.

[0030] This embodiment provides a TFT substrate glass pulling roller tension test device and method, and the specific implementation steps are as follows: Place the experimental platform 1 on a flat ground and ensure that all components are firmly installed. The experimental platform 1 is made of high-strength, corrosion-resistant stainless steel to ensure stability and durability in various experimental environments. At the same time, as the basic supporting structure of the entire experimental device, the experimental platform 1 should ensure that each component is stably installed and easy to operate. In this embodiment, the surface of the experimental platform 1 is anti-slip treated to increase experimental stability and safety.

[0031] Connect the servo motor 2, the reducer 3, the traction roller 4, the torque sensor 5, the load generator 6 and the load brake 7, and check whether the connection is correct. Among them, the servo motor 2 is connected to the PLC control system 8. The servo motor 2 has two control modes: speed module and torque module. The PLC control system 8 can accurately control the speed and torque of the servo motor 2 to meet the driving requirements under different load conditions; the reducer 3 is connected to the output shaft of the servo motor 2, and can smoothly and reliably transmit power to the servo motor 2 to achieve the effect of deceleration and torque increase. The torque sensor 5 is installed on the traction roller 4 and connected to the PLC control system 8. The torque sensor 5 can monitor the torque value of the traction roller 4 in real time, and transmit the monitored torque value data to the PLC control system 8 for processing and analysis. The load generator 6 is installed on the side of the traction roller 4, and can apply a load to the traction roller 4 during the experiment. The load brake 7 is connected to one end of the traction roller 4, which is used to verify the load value and torque value of the traction roller 4, simulating the different load conditions of the substrate glass traction roller in actual work, and the operator can directly adjust it manually.

[0032] The operator sets the speed of the servo motor 2 through the PLC control system 8 according to the experimental requirements, and sets the initial speed value. The output shaft of the servo motor 2 is connected to the input shaft of the reducer 3, and the output shaft of the reducer 3 is connected to the traction roller 4. The servo motor 2 transmits power to the traction roller 4 through the reducer 3, so that the traction roller 4 starts to rotate. After the servo motor 2 is started, observe whether the traction roller 4 rotates normally, and confirm whether the speed of the servo motor 2 meets the set value. Start the load generator 6, apply the first load value set to the traction roller 4 through the load generator 6, observe the reaction of the traction roller 4, and after confirming whether the load is correctly applied, maintain the load value for a period of time to ensure the stability of the system.

[0033] The torque sensor 5 monitors the torque value of the traction roller 4 in real time, and transmits the real-time monitored torque value data to the PLC control system 8 for processing and analysis. The PLC control system 8 receives the torque value data and transmits the data to the display 9 for display, and records the torque value at this time. The load value applied by the load generator 6 to the traction roller 4 is gradually increased, and each load value is maintained for a period of time, and the torque value of the traction roller 4 under the corresponding load value is recorded. Repeat the above steps until the maximum load value is reached, and the display 9 displays the change of torque value under different loads in real time.

[0034] The PLC control system 8 adjusts the speed and torque value of the servo motor 4 according to the real-time monitoring data of the torque sensor 5 to establish a constant torque mode between the maximum value and the minimum value, and realize full closed-loop automatic adjustment. Repeat the above experimental steps until the ideal experimental effect is achieved.

[0035] During the experiment, the PLC control system 8 transmits all received data to the display 9 and displays it on the display 9. The operator can view various experimental data in real time through the display 9 installed on site, including the speed and torque value of the servo motor 2, the torque value of the traction roller 4 monitored in real time by the torque sensor 5, and the load size of the load generator 6. The operator can make adjustments and optimizations by monitoring the data and testing needs.

[0036] Start the load brake 7, and apply a known load value different from the one applied during the experiment to the traction roller 4 through the load brake 7. Verify through the load brake 7 whether the actual load value applied to the traction roller 4 by the load generator 6 is consistent with the set value, and verify whether the torque monitoring value of the torque sensor 5 under the known load is accurate.

[0037] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A TFT substrate glass pulling roller tension test device, characterized in that: The invention comprises a traction roller (4), a servo motor (2) is installed at one end of the traction roller (4), a load generator (6) is installed on the side of the traction roller (4), a torque sensor (5) is also installed on the traction roller (4), and the torque sensor (5) and the servo motor (2) are both connected to a PLC control system (8).

2. A TFT substrate glass pulling roller tension test device according to claim 1, characterized in that: A reducer (3) is also installed on one end of the traction roller (4) on which the servo motor (2) is installed; the output shaft of the servo motor (2) is connected to the input shaft of the reducer (3); and the output shaft of the reducer (3) is connected to the traction roller (4).

3. The TFT substrate glass pulling roller tension test device according to claim 2, characterized in that: A load brake (7) is also installed at one end of the traction roller (4).

4. The TFT substrate glass pulling roller tension test device according to claim 3, characterized in that: The PLC control system (8) is connected to a display (9), and the PLC control system (8) receives data monitored in real time by the torque sensor (5) and displays it on the display (9).

5. The TFT substrate glass pulling roller tension test device according to claim 1, characterized in that: The traction roller (4) is placed on the upper surface of the experimental platform (1).

6. A TFT substrate glass pulling roller tension test method, based on a TFT substrate glass pulling roller tension test device according to any one of claims 1 to 5, characterized in that: The PLC control system (8) starts the servo motor (2) and adjusts its rotation speed. The servo motor (2) drives the traction roller (4) to rotate. The load generator (6) is started to apply different loads to the traction roller (4). Under different load conditions, the torque sensor (5) monitors the torque value change data of the traction roller (4) in real time and sends the torque value change data to the PLC control system (8). The PLC control system (8) analyzes and processes the torque value change data.

7. A TFT substrate glass pulling roller tension test method according to claim 6, characterized in that: The servo motor (2) transmits power to the traction roller (4) after conversion via the speed reducer (3).

8. A TFT substrate glass pulling roller tension test method according to claim 6, characterized in that: The torque sensor (5) monitors the load value and the torque value on the traction roller (4), and verifies the load value and the torque value on the traction roller (4) in conjunction with the load brake (7).

9. A TFT substrate glass pulling roller tension test method according to claim 8, characterized in that: The PLC control system (8) analyzes and processes the received torque value data under different loads, and further adjusts the rotation speed of the servo motor (2).

10. A TFT substrate glass pulling roller tension test method according to claim 9, characterized in that: The PLC control system (8) transmits the torque value data of the traction roller (4) under different loads monitored in real time by the torque sensor (5) to the display (9) for data display.

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