Pressing device for touch screen

Abstract

The utility model discloses a press-fit device for a touch screen, which belongs to the technical field of electronic manufacturing equipment, and is characterized by comprising a support table, a press-fit box body is bolted at the top of the support table, a press-fit component is arranged at the top of the press-fit box body, a fixing component is arranged in the press-fit box body, and the fixing component is fixed on the support table. And the pressing assembly comprises a hydraulic cylinder connected to the top of the pressing box in a bolted mode, the output end of the hydraulic cylinder is fixedly connected with a top plate, and a limiting rod is fixedly connected into the pressing box. The problems that the surface of the touch screen is scratched or an internal circuit is damaged due to overlarge instant pressure, the pressing quality is influenced, accurate fixing according to the touch screens of different sizes is inconvenient, the touch screen is easy to deviate or shake when being pressed, and the pressing stability is influenced are solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic manufacturing equipment technology, and in particular to a pressing device for touch screens. Background Technology

[0002] With the rapid development of electronic information technology, the application scenarios of touch screens are becoming increasingly widespread, covering many fields such as mobile phones, tablets, computers, automotive central control, smart homes, and industrial control. The demand for touch screens in various industries continues to grow, prompting manufacturers to continuously improve production efficiency and quality, and also putting forward higher requirements for the lamination equipment in touch screen production.

[0003] The pressing device is an important piece of equipment in the production and processing of touch screens. During the pressing process of touch screens, they are often placed on the pressing table, which can easily cause the touch screen to shift and affect the pressing effect. Therefore, we provide a pressing device for touch screens.

[0004] An existing patent (publication number: CN216179747U) discloses a pressing device for a touch screen. By adjusting the configuration of the components, the overall device achieves a good locking effect. The user places the touch screen between the first and second locking frames. The user rotates a rotating disc, which in turn rotates a rotating shaft. The rotating shaft, through a transmission sprocket and chain, rotates a locking screw sleeve. This locking screw sleeve, through the same transmission sprocket and chain, rotates another locking screw sleeve. The locking screw causes the first and second locking frames to move in opposite or opposite directions, thus facilitating the adjustment of the distance between the first and second locking frames and enabling the locking of touch screens of different lengths.

[0005] To address the aforementioned issues, existing patents offer solutions. However, existing touchscreen pressing devices are not conducive to buffering and protecting the touchscreen during the pressing process. Excessive instantaneous pressure can easily cause scratches on the touchscreen surface or damage to the internal circuitry, affecting the pressing quality. Furthermore, they are not convenient for precisely fixing touchscreens of different sizes, which can easily lead to displacement or shaking during pressing, affecting the stability of the pressing process.

[0006] To address this, a pressing device for touch screens is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a pressing device for touch screens, which can solve the problems of existing pressing devices for touch screens. These devices are not convenient for buffering and protecting the touch screen during the pressing process, and are prone to scratches on the touch screen surface or damage to internal circuits due to excessive instantaneous pressure, affecting the pressing quality. Furthermore, they are not convenient for precise fixing according to different sizes of touch screens, which can easily lead to displacement or shaking during pressing, affecting the stability of the pressing process.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a pressing device for a touch screen, comprising a support platform, a pressing box being bolted to the top of the support platform, a pressing assembly being provided on the top of the pressing box, and a fixing assembly being provided inside the pressing box;

[0009] The pressing assembly includes a hydraulic cylinder bolted to the top of the pressing chamber. The output end of the hydraulic cylinder is fixedly connected to a top plate. A limit rod is fixedly connected inside the pressing chamber. The top plate is slidably connected to the limit rod. A support rod is slidably connected to the top of the top plate. A connecting plate is fixedly connected to the bottom of the support rod. An auxiliary spring is sleeved on the outside of the support rod. The auxiliary spring is fixedly connected to the connecting plate. A heating module is bolted to the bottom of the connecting plate. A temperature sensor is bolted to the top of the heating module. A pressure plate is bolted to the bottom of the heating module.

[0010] Preferably, the fixing component includes a support frame bolted to the inside of the pressing box, a drive motor bolted inside the support frame, and a dual-axis lead screw fixedly connected to the output end of the drive motor.

[0011] Preferably, the outer side of the dual-axis lead screw is threaded with a connecting block, and the inner side of the connecting block is fixedly connected with a fixing frame.

[0012] Preferably, a pressure sensor is bolted to the inside of the fixed frame, and an elastic clamp is bolted to the outside of the fixed frame.

[0013] Preferably, a support plate is fixedly connected to the rear side of the pressing box, a vacuum pump is bolted to the top of the support plate, the output end of the vacuum pump is connected to a vacuum pipe, and a vacuum suction plate is bolted to the inside of the pressing box, the vacuum suction plate being connected to the vacuum pipe.

[0014] Preferably, both sides of the pressing box are bolted with fixing seats, and a laser rangefinder sensor is bolted to the top of the fixing seats.

[0015] Preferably, the bottom of the support platform is fixedly connected to a support leg, and the bottom of the support leg is bonded with an anti-slip pad, which is made of rubber.

[0016] Preferably, a protective door is rotatably connected to the front side of the pressing box, and a control panel is bolted to the left side of the pressing box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application uses a pressing component to ensure that the pressing plate remains stable during the lifting process, without any deviation or shaking, making the pressing process more stable and reliable, ensuring the accuracy of pressing, and at the same time avoiding damage to the touch screen caused by excessively fast descent speed or uneven pressure of the pressing plate, ensuring that the pressing plate can make smooth contact with the touch screen, effectively protecting the touch screen, and improving the pressing quality.

[0019] 2. This application uses a fixing component to accurately fix touch screens of different sizes. Compared with traditional fixing methods, it greatly improves the fixing accuracy, reduces the pressing deviation caused by inaccurate fixing, and improves the product yield. Moreover, when fixing the touch screen, it can avoid the fixing frame from exerting hard pressure on the touch screen, effectively protecting the surface and internal structure of the touch screen from damage. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a pressing device for a touch screen according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the pressing box body of this utility model;

[0022] Figure 3 This is a schematic diagram showing the disassembled pressing assembly of this utility model;

[0023] Figure 4 This is a cross-sectional view of the fixing component of this utility model;

[0024] Figure 5 This is a rear view of the pressing box of this utility model.

[0025] In the diagram: 1. Support platform; 2. Pressing box; 3. Control panel; 4. Pressing assembly; 401. Hydraulic cylinder; 402. Top plate; 403. Limiting rod; 404. Support rod; 405. Connecting plate; 406. Auxiliary spring; 407. Heating module; 408. Temperature sensor; 409. Pressure plate; 5. Fixing assembly; 501. Support frame; 502. Drive motor; 503. Dual-axis lead screw; 504. Connecting block; 505. Fixing frame; 506. Pressure sensor; 507. Elastic clamp; 6. Support plate; 7. Vacuum pump; 8. Vacuum pipeline; 9. Vacuum suction plate; 10. Fixing base; 11. Laser rangefinder sensor; 12. Support leg; 13. Anti-slip mat; 14. Protective door. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A pressing device for a touch screen includes a support platform 1, a pressing box 2 bolted to the top of the support platform 1, a pressing component 4 disposed on the top of the pressing box 2, and a fixing component 5 disposed inside the pressing box 2.

[0029] The pressing assembly 4 includes a hydraulic cylinder 401 bolted to the top of the pressing chamber 2. The output end of the hydraulic cylinder 401 is fixedly connected to a top plate 402. A limit rod 403 is fixedly connected inside the pressing chamber 2. The top plate 402 is slidably connected to the limit rod 403. A support rod 404 is slidably connected to the top of the top plate 402. A connecting plate 405 is fixedly connected to the bottom of the support rod 404. An auxiliary spring 406 is sleeved on the outside of the support rod 404. The auxiliary spring 406 is fixedly connected to the connecting plate 405. A heating module 407 is bolted to the bottom of the connecting plate 405. A temperature sensor 408 is bolted to the top of the heating module 407. A pressure plate 409 is bolted to the bottom of the heating module 407.

[0030] In this embodiment: by activating the hydraulic cylinder 401, the hydraulic cylinder 401 pushes the top plate 402 downward along the limiting rod 403. Then, the top plate 402, along with the support rod 404, connecting plate 405, heating module 407, and pressure plate 409, descend together. During the descent, the pressure plate 409 first contacts the surface of the touchscreen, then generates a reaction force on the top connecting plate 405 and heating module 407. As the output end of the hydraulic cylinder 401 drives the top plate 402 to continue descending, its support rod 404 will move downwards from the top of the top plate 402. The top plate 402 slides upward, causing it to directly contact the auxiliary spring 406 and exert pressure on it, causing the auxiliary spring 406 to continue to contract. The auxiliary spring 406 acts as a buffer, allowing the pressure plate 409 to smoothly contact the touch screen. After the pressure plate 409 contacts the touch screen, it continues to press down. At this time, the heating module 407 starts to work, heating the touch screen. The temperature sensor 408 monitors the temperature of the heating module 407 in real time and feeds the data back to the control panel 3, allowing the operator to accurately adjust the heating temperature.

[0031] Specifically, such as Figure 4As shown, the fixing component 5 includes a support frame 501 bolted inside the pressing box 2, a drive motor 502 bolted inside the support frame 501, and a dual-axis lead screw 503 fixedly connected to the output end of the drive motor 502.

[0032] Specifically, such as Figure 4 As shown, a connecting block 504 is threaded to the outer side of the dual-axis lead screw 503, and a fixing frame 505 is fixedly connected to the inner side of the connecting block 504.

[0033] Specifically, such as Figure 4 As shown, a pressure sensor 506 is bolted inside the fixed frame 505, and an elastic clamp 507 is bolted to the outside of the fixed frame 505.

[0034] In this embodiment: by starting the drive motor 502, the output shaft of the drive motor 502 drives the dual-axis lead screw 503 to start rotating. Since the connecting block 504 and the dual-axis lead screw 503 are threadedly connected, the rotation of the dual-axis lead screw 503 will cause the connecting block 504 to move along the axial direction of the dual-axis lead screw 503. The fixed frame 505 is fixedly connected to the inner side of the connecting block 504, so the movement of the connecting block 504 will drive the fixed frame 505 to move synchronously. By rotating the dual-axis lead screw 503 forward and backward, the two fixed frames 505 can move relative to each other or away from each other. Thus, according to the size of the touch screen, the distance between the two fixed frames 505 can be precisely adjusted to firmly fix the touch screen in the middle. During fixing, the pressure sensor 506 inside the fixed frame 505 monitors the pressure applied by the fixed frame 505 to the touch screen in real time and feeds the pressure data back to the control system. The operator can judge whether the fixing effect is good based on the pressure data to avoid damaging the touch screen due to excessive pressure or causing the fixing to be unstable due to insufficient pressure.

[0035] Specifically, such as Figure 2 , Figure 5 As shown, a support plate 6 is fixedly connected to the rear side of the pressing box 2, a vacuum pump 7 is bolted to the top of the support plate 6, the output end of the vacuum pump 7 is connected to a vacuum pipe 8, and a vacuum suction plate 9 is bolted to the inside of the pressing box 2, and the vacuum suction plate 9 is connected to the vacuum pipe 8.

[0036] Specifically, such as Figure 2 As shown, both sides of the inside of the pressing box 2 are bolted with a fixing seat 10, and a laser rangefinder sensor 11 is bolted to the top of the fixing seat 10.

[0037] In this embodiment: By setting up a support plate 6, a vacuum pump 7, a vacuum pipe 8, and a vacuum suction plate 9, after the touch screen is placed on the fixed frame 505 and initially fixed, the protective door 14 of the pressing chamber 2 is closed, and the vacuum pump 7 located at the top of the support plate 6 is started. The vacuum pump 7 starts working and extracts the air around the vacuum suction plate 9 inside the pressing chamber 2 through the vacuum pipe 8. As the air is extracted, the vacuum suction plate 9 gradually generates suction force, tightly adhering to the touch screen, keeping the touch screen stable during the pressing process and preventing displacement. This further enhances the fixing effect on the touch screen and can also expel the air between the touch screen and the pressing surface, significantly reducing the generation of air bubbles inside the product after pressing, greatly improving the pressing quality of the touch screen, and thus improving the product yield. By setting up a fixing seat 10 and a laser rangefinder 11, the fixing seats installed on both sides inside the pressing chamber 2 are used throughout the pressing process. The laser rangefinder 11 at the top of the 10 continuously operates, emitting laser beams and receiving light reflected from the pressure plate 409 and the touchscreen surface. By calculating the round-trip time of the light, it accurately measures the distance between the pressure plate 409 and the touchscreen. Simultaneously, it monitors whether the touchscreen's position shifts during the pressing process based on changes in the measurement data. The laser rangefinder 11 provides real-time monitoring of the pressing process. By accurately measuring the distance between the pressure plate 409 and the touchscreen, operators can intuitively understand the pressing progress and pressure distribution. If the touchscreen position shifts or the distance between the pressure plate 409 and the touchscreen does not meet the preset value, corresponding measures can be taken in time to adjust the output of the hydraulic cylinder 401 to change the position of the pressure plate 409, thereby ensuring the accuracy and stability of the pressing process, effectively improving the pressing quality, and reducing the defect rate.

[0038] Specifically, such as Figure 1 , Figure 2 As shown, a support leg 12 is fixedly connected to the bottom of the support platform 1, and an anti-slip pad 13 is glued to the bottom of the support leg 12. The anti-slip pad 13 is made of rubber.

[0039] Specifically, such as Figure 1 As shown, a protective door 14 is rotatably connected to the front side of the pressing box 2, and a control panel 3 is bolted to the left side of the pressing box 2.

[0040] In this embodiment: by setting support legs 12 and anti-slip pads 13, the support legs 12 support the entire device, while the rubber anti-slip pads 13 bonded to their bottoms increase the friction between the device and the ground. The combined design of support legs 12 and anti-slip pads 13 greatly improves the stability of the pressing device during operation. During the operation of the device, the hydraulic cylinder 401 will generate vibrations. The anti-slip pads 13 can effectively reduce the transmission of vibrations to the ground and prevent the device from sliding on the ground due to vibrations, ensuring that the pressing process is not affected by external unstable factors, thereby improving the precision and quality of pressing. By setting protective doors 14 and control panels 3, the device can further enhance its stability. Before performing the touchscreen pressing operation, open the protective door 14, which is rotatably connected to the front of the pressing chamber 2, and place the touchscreen to be pressed on the fixing component 5 for fixation. During the pressing process, the protective door 14 is in the closed state to protect the operator from accidental injury during equipment operation. It also prevents external dust, impurities, etc. from entering the pressing chamber 2 and affecting the pressing quality. The operator controls the entire pressing device through the control panel 3 bolted to the left side of the pressing chamber 2. This allows the operator to flexibly adjust the working parameters of the equipment according to different touchscreen pressing requirements, achieve precise control of the pressing process, and help improve production efficiency and product quality.

[0041] Working Principle: When using the touchscreen pressing device, first open the protective door 14 and place the touchscreen to be pressed on the fixed frame 505. Then, start the drive motor 502. The output shaft of the drive motor 502 drives the dual-axis lead screw 503 to rotate. Since the connecting block 504 and the dual-axis lead screw 503 are threadedly connected, the rotation of the dual-axis lead screw 503 will cause the connecting block 504 to move along the axial direction of the dual-axis lead screw 503. The fixed frame 505 is fixedly connected to the inner side of the connecting block 504, so the movement of the connecting block 504 will drive the fixed frame 505 to move synchronously. By rotating the dual-axis lead screw 503 forward and backward, the two fixed frames 505 can move relative to each other or away from each other, thereby adjusting the position of the touchscreen. The size of the screen is precisely adjusted, and the distance between the two fixing frames 505 is adjusted to securely fix the touchscreen in the middle. During fixing, the pressure sensor 506 inside the fixing frame 505 monitors the pressure applied to the touchscreen in real time and feeds the pressure data back to the control system. The operator can judge whether the fixing effect is good based on the pressure data, avoiding damage to the touchscreen due to excessive pressure or insecure fixing due to insufficient pressure. Then, the protective door 14 is closed and the vacuum pump 7 is started. The vacuum pump 7 then draws air from around the vacuum suction plate 9 through the vacuum pipe 8, causing the vacuum suction plate 9 to generate suction, further fixing the touchscreen and reducing air bubbles generated during pressing. Then, the hydraulic cylinder 401 is started, and the hydraulic cylinder 401 pushes the top plate 40 2. Moving downwards along the limiting rod 403, the top plate 402 then drives the support rod 404, connecting plate 405, heating module 407, and pressure plate 409 to descend together. During the descent, the pressure plate 409 first contacts the surface of the touchscreen, then generates a reaction force on the top connecting plate 405 and heating module 407. As the hydraulic cylinder 401 drives the top plate 402 to continue descending, its support rod 404 slides upwards on the top of the top plate 402, causing the top plate 402 to directly contact the auxiliary spring 406 and exert pressure on the auxiliary spring 406, causing it to continue contracting. The auxiliary spring 406 acts as a buffer, allowing the pressure plate 409 to smoothly contact the touchscreen. After the pressure plate 409 contacts the touchscreen, it continues to descend. During the pressing process, the heating module 407 starts working to heat the touchscreen. Its temperature sensor 408 monitors the temperature of the heating module 407 in real time and feeds the data back to the control panel 3, allowing operators to precisely adjust the heating temperature. During pressing, the laser rangefinder 11 monitors the distance between the pressure plate 409 and the touchscreen, as well as the positional changes of the touchscreen. If the touchscreen position shifts or the distance between the pressure plate 409 and the touchscreen does not meet the preset value, it can be corrected by adjusting the output of the hydraulic cylinder 401. After pressing is complete, the hydraulic cylinder 401 retracts, causing the pressure plate 409 to rise back to its initial position. The vacuum pump 7 is then turned off, restoring normal pressure inside the pressing chamber 2. Finally, the protective door 14 is opened, and the pressed touchscreen is removed.Complete the entire lamination process.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressing device for a touch screen, comprising a support platform (1), characterized in that: The top of the support platform (1) is bolted with a pressing box (2), the top of the pressing box (2) is provided with a pressing component (4), and the inside of the pressing box (2) is provided with a fixing component (5). The pressing assembly (4) includes a hydraulic cylinder (401) bolted to the top of the pressing box (2). The output end of the hydraulic cylinder (401) is fixedly connected to a top plate (402). A limit rod (403) is fixedly connected inside the pressing box (2). The top plate (402) is slidably connected to the limit rod (403). A support rod (404) is slidably connected to the top of the top plate (402). A connecting plate (405) is fixedly connected to the bottom of the support rod (404). An auxiliary spring (406) is sleeved on the outside of the support rod (404). The auxiliary spring (406) is fixedly connected to the connecting plate (405). A heating module (407) is bolted to the bottom of the connecting plate (405). A temperature sensor (408) is bolted to the top of the heating module (407). A pressure plate (409) is bolted to the bottom of the heating module (407).

2. The pressing device for a touch screen according to claim 1, characterized in that: The fixing component (5) includes a support frame (501) bolted inside the pressing box (2), a drive motor (502) is bolted inside the support frame (501), and a dual-axis lead screw (503) is fixedly connected to the output end of the drive motor (502).

3. The pressing device for a touch screen according to claim 2, characterized in that: The outer side of the dual-axis lead screw (503) is threaded with a connecting block (504), and the inner side of the connecting block (504) is fixedly connected with a fixing frame (505).

4. The pressing device for a touch screen according to claim 3, characterized in that: A pressure sensor (506) is bolted inside the fixed frame (505), and an elastic clamp (507) is bolted to the outside of the fixed frame (505).

5. The pressing device for a touch screen according to claim 1, characterized in that: A support plate (6) is fixedly connected to the rear side of the pressing box (2). A vacuum pump (7) is bolted to the top of the support plate (6). The output end of the vacuum pump (7) is connected to a vacuum pipe (8). A vacuum suction plate (9) is bolted to the inside of the pressing box (2). The vacuum suction plate (9) is connected to the vacuum pipe (8).

6. The pressing device for a touch screen according to claim 1, characterized in that: Both sides of the inside of the pressing box (2) are bolted with a fixing seat (10), and a laser rangefinder sensor (11) is bolted to the top of the fixing seat (10).

7. The pressing device for a touch screen according to claim 1, characterized in that: The bottom of the support platform (1) is fixedly connected to a support leg (12), and the bottom of the support leg (12) is bonded with an anti-slip pad (13), which is made of rubber.

8. A pressing device for a touch screen according to claim 1, characterized in that: The front side of the pressing box (2) is rotatably connected to a protective door (14), and the left side of the pressing box (2) is bolted with a control panel (3).

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