Touch screen full-lamination processing device

Abstract

The invention relates to the technical field of touch screen lamination, and discloses a touch screen full-lamination processing device which comprises a machine base, a rolling module, an air source switching piece, a glue scraping piece and a film removing module. The machine base is provided with an object placing base for placing a screen body, the side face of the machine base is provided with a rotating piece, the rotating piece is sleeved with a coiled OCA optical adhesive tape and a protective film, the rolling module is arranged above the object placing base and used for applying rolling force to the screen body from the middle to the two ends, and the rolling module comprises a plurality of finger pressing pieces; the finger pressing piece moves on the surface of the screen body to apply local pressure. Through a heating and rolling combined mode, the flowability of the OCA optical tape is enhanced, the OCA optical tape is tightly attached to a touch screen and a liquid crystal screen, meanwhile, new designs such as local pressing of the finger pressing piece, cold air cooling, protective film isolation and cleaning of the glue scraping piece are utilized, the exhaust efficiency is improved, mechanical damage is avoided, glue cleaning automation is achieved, the attaching quality and the production efficiency are improved, and the production cost is reduced. The rework rate and the cleaning risk are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen lamination, and particularly relates to a full lamination processing device for touch screens. Background Art

[0002] As the core carrier of human-computer interaction, the technical process of liquid crystal touch screens directly affects the user experience. Currently, the mainstream liquid crystal touch screen lamination technologies are divided into full lamination and frame lamination. Frame lamination, also known as mouth-shaped glue lamination, simply fixes the four sides of the touch screen and the liquid crystal screen with double-sided tape, and there is an air layer between the touch panel and the liquid crystal panel. The full lamination technology uses water glue or optical glue to seamlessly and completely bond the touch panel and the liquid crystal panel together; The full lamination process of touch screens can be further divided into LOCA lamination and OCA lamination. When performing OCA lamination, mainly attach the OCA optical tape to the liquid crystal screen, then tear off the release film on the OCA optical tape, place the touch screen on the liquid crystal screen, and then perform pressing on the touch screen to make the touch screen and the liquid crystal screen closely adhere; In the existing touch screen full lamination technology, when placing the touch screen on the liquid crystal screen attached with OCA optical glue and performing the pressing operation, since OCA optical glue is a solid optical glue film and its fluidity is much lower than that of liquid glue, during the lamination process, OCA optical glue cannot flow quickly under pressure like liquid glue and fill the tiny gaps between the touch screen and the liquid crystal screen. This lack of fluidity makes it difficult to completely discharge the air, thus easily forming bubbles. And during the lamination process, the touch screen is quickly pressed, and this rapid pressing operation further makes the air unable to be discharged from the gaps between the touch screen and the liquid crystal screen in time, resulting in the air being compressed and trapped between the two, forming bubbles.

[0003] To solve the above problems, a full lamination processing device for touch screens is proposed in this application. Summary of the Invention

[0004] The present invention proposes a full lamination processing device for touch screens, which solves the problems in the related technology that the OCA optical glue has poor fluidity, air is difficult to be discharged during lamination and easy to form bubbles, and rapid pressing exacerbates the formation of bubbles.

[0005] A full lamination processing device for touch screens proposed by the present invention includes a machine base, a roller pressing module, an air source switching member, a glue scraping member, and a film removing module; A placement seat for placing the screen body is installed on the machine base, a rotating member is installed on the side of the machine base, a roll of OCA optical tape and a protective film are sleeved on the rotating member, the roller pressing module is arranged above the placement seat and is used to apply a roller pressure from the middle to both ends to the screen body. The roller pressing module includes a plurality of finger pressing members, and during roller pressing, the finger pressing members move on the surface of the screen body to apply local pressure; The air source switching member can switch hot air and cold air to be guided to the rolling module and blown towards the screen area; A scraping member is installed on the placement seat. The film removing module is used to remove the release film on the OCA optical tape and push the scraping member to move along both sides of the screen when returning to the original position, so as to remove the overflowing colloid during the rolling of the screen.

[0006] As a further optimized solution of the present invention, the rotating member includes a support plate, a support arm and a motor. The support plate is installed on the side of the machine base, the motor is installed on the support plate, the output end of the motor is connected with a support arm, and expansion shafts are rotatably installed at both ends of the support arm. The rolled OCA optical tape and the protective film are respectively sleeved on the two expansion shafts.

[0007] As a further optimized solution of the present invention, the rolling module further includes a U-shaped seat, a follower, two rolling and blowing members and a cylinder. A frame is installed on the machine base, the cylinder is installed on the frame, the U-shaped seat is located above the placement seat and is connected with the cylinder, and is driven to move up and down by the cylinder. The two rolling and blowing members are symmetrically arranged below the U-shaped seat, and followers are connected between the two rolling and blowing members and the U-shaped seat. A plurality of spaced finger pressing members are installed on the side of the two rolling and blowing members away from each other.

[0008] As a further optimized solution of the present invention, the rolling and blowing member includes a triangular block, a pressing roller and an exhaust duct. Triangular blocks are installed at both ends of the exhaust duct, and two symmetrically arranged pressing rollers are rotatably installed between the two triangular blocks. The two pressing rollers are located below the exhaust duct and form a triangular structure with it. An air passing channel is formed between the two pressing rollers. A plurality of exhaust nozzles facing the air passing channel are connected to the bottom of the exhaust duct. The exhaust duct is communicated with the air source switching member. A plurality of spaced finger pressing members are installed on the side of the two exhaust ducts away from each other; The follower includes a first shaft rod and a first U-shaped block. Two symmetrically arranged first shaft rods are rotatably installed in the U-shaped seat. Follower arms are sleeved on the two first shaft rods. The two follower arms incline outwards from the bottom of the U-shaped seat and are symmetrically distributed. A first torsion spring is sleeved on the first shaft rod, and both ends of the first torsion spring are respectively connected with the follower arm and the inner wall of the U-shaped seat. First U-shaped blocks are installed on the two exhaust ducts. A second shaft rod is rotatably installed in the first U-shaped block. The bottom ends of the two follower arms are respectively sleeved on the two second shaft rods. A second torsion spring is sleeved on the second shaft rod, and both ends of the second torsion spring are respectively connected with the follower arm and the inner wall of the first U-shaped block.

[0009] As a further optimized solution of the present invention, the finger pressing member includes a second U-shaped block. A plurality of second U-shaped blocks arranged at intervals are installed on the outer sides of the two exhaust pipes away from each other. A third shaft rod is rotatably installed in the second U-shaped block. A connecting arm is sleeved on the third shaft rod, and the connecting arm inclines downward from the bottom end of the second U-shaped block. A third torsion spring is sleeved on the third shaft rod, and the two ends of the third torsion spring are respectively connected to the connecting arm and the inner wall of the second U-shaped block. A finger pressing block is installed at the bottom end of the connecting arm.

[0010] As a further optimized solution of the present invention, the air source switching member includes an air supply pipe, a hot air blower and a cold air blower. The air supply pipe is installed on the frame. The hot air blower and the cold air blower are respectively connected to the two ends of the air supply pipe. Two air guide pipes are connected to the air supply pipe, and the two air guide pipes are respectively communicated with the two exhaust pipes.

[0011] As a further optimized solution of the present invention, the glue scraping member includes a limiting rod, a loading rod, a spring, an assembly block and two scraping plates. A placement groove is formed at the top of the placement seat. A slideway is formed in the placement seat and penetrates through both sides of the placement seat. The limiting rod is arranged in the slideway, and the two ends of the limiting rod are respectively fixed to the inner walls of the two ends of the placement seat. The loading rod is sleeved on the limiting rod, and the two ends of the loading rod respectively extend out of both sides of the slideway. The spring is sleeved on the limiting rod, and the two ends of the spring are respectively connected to the loading rod and the inner wall of one end of the placement seat. Assembly blocks are installed at the two ends of the loading rod. Slots are formed on the adjacent sides of the two assembly blocks, and the two scraping plates are respectively inserted into the two slots.

[0012] As a further optimized solution of the present invention, the film removing module includes a mounting block. A horizontally arranged first electric slide rail is installed on the back of the machine base through the mounting block. The driving end of the first electric slide rail is connected to a vertically arranged second electric slide rail. The driving end of the second electric slide rail is installed with a first electric push rod. The driving end of the first electric push rod is installed with a film sticking member.

[0013] As a further optimized solution of the present invention, the film sticking member includes a vertical rod and a third U-shaped block. A vertical rod is installed on the third U-shaped block and is connected to the driving end of the first electric push rod. A roller shaft is rotatably installed in the middle of the third U-shaped block. An adhesive layer is sleeved on the roller shaft. A second electric push rod is installed on the third U-shaped block. The driving end of the second electric push rod is connected to a clamping plate located on one side of the roller shaft. A connecting rod is installed at one end of the third U-shaped block.

[0014] As a further optimized solution of the present invention, a strip block is installed on the machine base near the rotating member, and a cutting member is installed on the frame above the strip block; The cutting member includes a third electric push rod and a cutter. The third electric push rod is installed on the frame, and the driving end of the third electric push rod is connected to a cutter located above the strip.

[0015] The above technical solution of the present invention has the following beneficial technical effects: 1. In the present invention, the LCD screen is placed on the placement seat, the OCA optical tape of the appropriate length is pulled out and cut and then attached to the LCD screen. The roller pressing module is used in cooperation with the hot air heating of the air source switching member to enhance the fluidity of the OCA optical tape to fill the small gaps of the LCD screen. Then, the top release film is removed by the film removing module. After placing the touch screen, the cylinder drives the roller pressing and blowing member to roll and press from the middle of the touch screen to both ends under the action of the follower member, avoiding air entrapment to form bubbles. Finally, the OCA optical tape is tightly attached under the dual action of heating and roller pressing, enhancing the bonding strength between the touch screen and the LCD screen and improving the product performance and reliability. 2. When the roller pressing and blowing member rolls and presses the touch screen in the present invention, since a plurality of finger pressing members are installed on both sides of the two roller pressing and blowing members away from each other, the finger pressing members on the roller pressing and blowing member can press on the touch screen, similar to fingers pressing on the touch screen. When the two roller pressing and blowing members roll from the middle of the touch screen to both ends, the finger pressing members on the roller pressing and blowing member will also move accordingly and move on the surface of the touch screen, applying a thrust similar to that of fingers. The local pressing action of the finger pressing members can better discharge the air between the touch screen and the LCD screen. Especially in areas such as the edges and corners where air is likely to remain, the finger pressing members can provide more effective pressing to ensure uniform pressure distribution in all parts during the bonding process. The above design combines overall roller pressing with local pressing, not only improving the exhaust efficiency, but also making the bonding between the touch screen and the LCD screen more uniform, avoiding the problem of uneven bonding caused by poor local air exhaust. 3. Since when the touch screen is roller pressed, the OCA optical tape between the touch screen and the LCD screen is in a heated state. Heating will enhance the fluidity of the OCA optical tape and reduce its viscosity, which may cause it to shift or have weak adhesiveness in a short time after the subsequent application of the touch screen. Therefore, when the roller pressing module applies a roller pressure from the middle to both ends to the touch screen, the air source is switched through the air source switching member, and the cold air is guided into the roller pressing and blowing member, and then the cold air is blown onto the touch screen through the roller pressing and blowing member to cool the OCA optical tape, so that its viscosity returns to a suitable state, avoiding the offset phenomenon caused by the excessive fluidity of the OCA optical tape due to heating, and at the same time ensuring its good adhesiveness in a short time, ensuring a firm bond between the touch screen and the LCD screen. This solution avoids the situation of secondary adjustment or repair due to insufficient adhesiveness of the OCA optical tape, reduces the rework rate in the production process, and improves the production efficiency. 4. During the rolling process, the roller-blowing element exerts significant pressure on the touch screen. Direct contact between the roller-blowing element and the touch screen surface can easily cause scratches, indentations, or other mechanical damage. Before rolling the touch screen, the present invention uses a rotating element to swap the positions of the OCA optical tape and the protective film. The protective film is cut to fit and attached to the touch screen, allowing the roller-blowing element to press against the protective film. This design utilizes the protective film as an intermediate layer to withstand the rolling pressure, preventing the roller-blowing element from directly contacting the touch screen and reducing mechanical damage such as scratches and indentations. After lamination, the protective film remains attached, preventing dust and oil contamination during packaging and transportation, reducing scratches caused by collision and friction, and providing continuous protection. 5. The present invention attaches the OCA optical tape to the LCD screen, and after heating it, its fluidity will become stronger. Then, the touch screen is placed on the LCD screen with the OCA optical tape. When pressure is applied to the touch screen, some of the colloid may be squeezed out to the edge. After the touch screen is attached with the protective film of the present invention, the film removal module for tearing off the release film of the OCA optical tape needs to be restored to its original position. The film removal module can drive the scraper on the storage seat to move along the edges of the LCD screen and the touch screen. The colloid on both sides of the touch screen and the LCD screen can be scraped off by the scraper. Then, the touch screen is taken down and the colloid on the scraper is cleaned immediately. The film removal module releases the restriction on the scraper and allows the scraper to be restored to its original position. The above design drives the scraper to move and restore to its original position through the film removal module, thereby realizing the automated operation of colloid cleaning, reducing the steps and time of manual cleaning, improving production efficiency, and also reducing the risks of incomplete cleaning or product damage caused by improper manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a touch screen full lamination processing device proposed by the present invention; Figure 2 This is a front view of a touch screen full lamination processing device proposed by the present invention; Figure 3 This is a schematic diagram of the back structure of a touch screen full lamination processing device proposed by the present invention; Figure 4 It is a structural schematic diagram of the roller pressing die set of the present invention; Figure 5 For the present invention Figure 4 Overall front view; Figure 6 This is a schematic structural diagram of a roller-pressed blowing member of the present invention; Figure 7 It is a structural schematic diagram of the finger pressure piece of the present invention; Figure 8 This is a schematic structural diagram of the wind source switching component of the present invention; Figure 9 It is a structural schematic diagram of the storage seat of the present invention; Figure 10 It is a schematic structural diagram of the glue scraping part of the present invention; Figure 11 It is a schematic structural diagram of the film removing module of the present invention; Figure 12 It is a schematic structural diagram of the mucosal part of the present invention; Figure 13 It is a schematic structural diagram of the rotating part of the present invention.

[0017] Reference numerals: 1, machine base; 101, storage seat; 1011, storage groove; 1012, slideway; 102, frame; 103, strip; 2, rotating part; 201, OCA optical tape; 202, protective film; 21, support plate; 22, support arm; 23, motor; 24, expansion shaft; 3, rolling module; 31, U-shaped seat; 32, follower; 321, first shaft rod; 322, follower arm; 323, first torsion spring; 324, first U-shaped block; 325, second shaft rod; 326, second torsion spring; 33, rolling and blowing part; 331, triangular block; 332, pressure roller; 333, exhaust duct; 334, exhaust nozzle; 34, finger pressing part; 341, second U-shaped block; 342, third shaft rod; 343, connecting arm; 344, third torsion spring; 345, finger pressing block; 35, cylinder; 4, air source switching part; 41, air supply pipe; 42, hot air blower; 43, cold air blower; 44, guide air duct; 5, glue scraping part; 51, limiting rod; 52, loading rod; 53, spring; 54, assembly block; 55, scraper; 6, film removing module; 61, mounting block; 62, first electric slide rail; 63, second electric slide rail; 64, first electric push rod; 65, mucosal part; 651, vertical rod; 652, third U-shaped block; 653, roller shaft; 654, adhesive layer; 655, second electric push rod; 656, clamping plate; 657, connecting rod; 7, cutting part; 71, third electric push rod; 72, cutter. Detailed implementation manners

[0018] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0019] As Figure 1-13 shown, a full lamination processing device for a touch screen proposed by the present invention includes a machine base 1, a rolling module 3, an air source switching part 4, a glue scraping part 5 and a film removing module 6; A storage seat 101 for placing the screen body is installed on the machine base 1, and a rotating member 2 is installed on the side of the machine base 1. A roll of OCA optical tape 201 and a protective film 202 are sleeved on the rotating member 2. The rolling module 3 is arranged above the storage seat 101 and is used to apply a rolling pressure from the middle to both ends to the screen body. The rolling module 3 includes a plurality of finger pressing members 34. During rolling, the finger pressing members 34 move on the surface of the screen body to apply local pressure. The air source switching member 4 can switch hot air and cold air to be guided to the rolling module 3 and blown to the screen body area. A glue scraping member 5 is installed on the storage seat 101. The film removing module 6 is used to remove the release film on the OCA optical tape 201 and push the glue scraping member 5 to move along both sides of the screen body when returning to the original position, so as to remove the overflowing glue during rolling the screen body.

[0020] In the present invention, first, the liquid crystal screen is placed on the storage seat 101. After pulling out the OCA optical tape 201 from the rotating member 2 and cutting it, the release film at its bottom is removed and pasted on the liquid crystal screen. The rolling module 3 applies a rolling pressure from the middle to both sides to the OCA optical tape 201. At the same time, the air source switching member 4 conducts hot air to heat, enhancing its fluidity to fill the fine gaps of the liquid crystal screen. Then, the film removing module 6 removes the release film on the top of the OCA optical tape 201, places the touch screen on the liquid crystal screen with the OCA optical tape 201 attached, exchanges positions through the rotating member 2, pulls out the protective film 202, cuts it and attaches it to the touch screen. The rolling module 3 applies a rolling from the middle to both ends to the touch screen, and the finger pressing members 34 move accordingly and apply local pressure to discharge air. At the same time, the air source switching member 4 conducts cold air to cool the OCA optical tape 201 to prevent it from shifting due to excessive fluidity. After the fitting is completed, the rolling module 3 resets. Finally, when the film removing module 6 returns to the original position, it drives the glue scraping member 5 to move along both sides of the screen body, scrapes off the overflowing glue and then resets for the next use.

[0021] As Figure 1 、 Figure 2 shown in Figure 13 In this embodiment, the rotating member 2 includes a support plate 21, a support arm 22 and a motor 23. The support plate 21 is installed on the side of the machine base 1, the motor 23 is installed on the support plate 21, the output end of the motor 23 is connected with the support arm 22, and expansion shafts 24 are rotatably installed at both ends of the support arm 22. The roll of OCA optical tape 201 and the protective film 202 are respectively sleeved on the two expansion shafts 24. During operation, the motor 23 is powered on and rotates, driving the support arm 22 to rotate, and further causing the expansion shafts 24 to rotate, realizing the operation of switching the positions of the OCA optical tape 201 and the protective film 202. The expansion shafts 24 can fix the roll of OCA optical tape 201 and the protective film 202. During use, the OCA optical tape 201 and the protective film 202 can be pulled out from the corresponding expansion shafts 24 to meet the fitting requirements of liquid crystal screens and touch screens of different sizes.

[0022] AsFigure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the roll pressing module 3 further includes a U-shaped seat 31, a follower 32, two roll pressing and blowing members 33 and a cylinder 35. A frame 102 is installed on the machine base 1, and the cylinder 35 is installed on the frame 102. The U-shaped seat 31 is located above the placing seat 101 and connected to the cylinder 35, and is driven by the cylinder 35 to move up and down. The two roll pressing and blowing members 33 are symmetrically arranged below the U-shaped seat 31. A follower 32 is connected between each of the two roll pressing and blowing members 33 and the U-shaped seat 31. A plurality of spaced-apart finger pressing members 34 are installed on each side of the two roll pressing and blowing members 33 away from each other.

[0023] When the cylinder 35 drives the U-shaped seat 31 to descend, the roll pressing and blowing member 33 contacts the surface of the screen body. Under the resistance of the screen body, the follower arm 322 tilts accordingly, causing the roll pressing and blowing member 33 to roll from the middle of the screen body to both ends. At the same time, the finger pressing member 34 applies a local pressure to the surface of the screen body under the drive of the roll pressing and blowing member 33.

[0024] As Figure 4 and Figure 6 shown, in this embodiment, the roll pressing and blowing member 33 includes a triangular block 331, a pressure roller 332 and an exhaust duct 333. Triangular blocks 331 are installed at both ends of the exhaust duct 333. Two symmetrically arranged pressure rollers 332 are rotatably installed between the two triangular blocks 331. The two pressure rollers 332 are located below the exhaust duct 333 and form a triangular structure with it. An air passage is formed between the two pressure rollers 332. A plurality of exhaust nozzles 334 facing the air passage are connected to the bottom of the exhaust duct 333. The exhaust duct 333 is connected to the air source switching member 4. A plurality of spaced-apart finger pressing members 34 are installed on each side of the two exhaust ducts 333 away from each other; The follower 32 includes a first shaft rod 321 and a first U-shaped block 324. Two symmetrically arranged first shaft rods 321 are rotatably installed in the U-shaped seat 31. Follower arms 322 are sleeved on both of the first shaft rods 321. The two follower arms 322 incline outward from the bottom of the U-shaped seat 31 and are symmetrically distributed. A first torsion spring 323 is sleeved on the first shaft rod 321, and both ends of the first torsion spring 323 are respectively connected to the follower arm 322 and the inner wall of the U-shaped seat 31. First U-shaped blocks 324 are installed on both of the exhaust ducts 333. A second shaft rod 325 is rotatably installed in the first U-shaped block 324. The bottom ends of the two follower arms 322 are respectively sleeved on the two second shaft rods 325. A second torsion spring 326 is sleeved on the second shaft rod 325, and both ends of the second torsion spring 326 are respectively connected to the follower arm 322 and the inner wall of the first U-shaped block 324.

[0025] When the air source switching member 4 introduces hot air, the hot air enters the exhaust duct 333 through the air guide duct 44, blows out from the exhaust nozzle 334 and passes through the air passage to heat the OCA optical tape 201 below. At the same time, the pressing roller 332 rolls during the rolling process, enhancing the fluidity of the heated OCA optical tape 20. When cooling is required, the air source switching member 4 introduces cold air, and the cold air blows out through the same path to cool the OCA optical tape 20 and restore its viscosity. The first shaft rod 321 and the second shaft rod 325 of the follower member 32 cooperate with the torsion spring, enabling the rolling and blowing member 33 to automatically adjust the angle according to the shape of the screen body surface when moving along with the U-shaped seat 31, ensuring that the pressing roller 332 and the exhaust nozzle 334 always maintain an appropriate distance and angle from the screen body surface, achieving uniform rolling and blowing.

[0026] As Figure 7 shown, in this embodiment, the finger pressing member 34 includes a second U-shaped block 341. A plurality of second U-shaped blocks 341 arranged at intervals are installed on the remote sides of the two exhaust ducts 333. A third shaft rod 342 is rotatably installed in the second U-shaped block 341. A connecting arm 343 is sleeved on the third shaft rod 342, and the connecting arm 343 slopes downward from the bottom end of the second U-shaped block 341. A third torsion spring 344 is sleeved on the third shaft rod 342, and the two ends of the third torsion spring 344 are respectively connected to the connecting arm 343 and the inner wall of the second U-shaped block 341. A finger pressing block 345 is installed at the bottom end of the connecting arm 343.

[0027] When the rolling and blowing member 33 rolls on the screen body surface, the finger pressing block 345 first contacts the screen body surface. Under the resistance of the screen body, the connecting arm 343 rotates around the third shaft rod 342, and the third torsion spring 344 is twisted, causing the finger pressing block 345 to apply pressure to the screen body surface. When the rolling and blowing member 33 continues to move, the finger pressing block 345 slides on the screen body surface, similar to the action of finger pressing. Especially in areas such as the edges and corners of the screen body that are difficult to roll, the finger pressing block 345 can provide more concentrated local pressure, effectively exhausting the air in these areas and avoiding the generation of bubbles. At the same time, the plurality of finger pressing members 34 are arranged at intervals, making the force on the screen body surface more uniform.

[0028] As Figure 3 、 Figure 6 and Figure 8 shown, in this embodiment, the air source switching member 4 includes an air supply duct 41, a hot air blower 42 and a cold air blower 43. The air supply duct 41 is installed on the frame 102. The hot air blower 42 and the cold air blower 43 are respectively connected to both ends of the air supply duct 41. Two air guide ducts 44 are connected to the air supply duct 41, and the two air guide ducts 44 are respectively communicated with the two exhaust ducts 333.

[0029] During operation, the air source is switched by controlling the start and stop of the hot air blower 42 and the cold air blower 43. When it is necessary to heat the OCA optical tape 201, the hot air blower 42 is started. The hot air enters the exhaust duct 333 through the air supply duct 41 and the air guide duct 44, and is blown out from the exhaust nozzle 334 to heat the OCA optical tape 201, enhancing its fluidity and enabling it to better fill the fine gaps on the surface of the liquid crystal screen. When the touch screen is roll-pressed, the cold air blower 43 is started. The cold air is blown out through the same path to cool the OCA optical tape 201, restoring its viscosity and avoiding the touch screen from shifting due to excessive fluidity, ensuring the firmness and accuracy of the bonding. Through the automatic switching of the air source, the temperature control of the OCA optical tape 201 is achieved, improving the bonding quality.

[0030] As Figure 9 shown in Figure 10 In this embodiment, the rubber scraping member 5 includes a limit rod 51, a loading rod 52, a spring 53, an assembly block 54 and two scraping plates 55. A placement groove 1011 is formed at the top of the placement seat 101, and a slideway 1012 is formed in the placement seat 101 and penetrates through both sides of the placement seat 101. The limit rod 51 is arranged in the slideway 1012, and both ends of the limit rod 51 are fixed to the inner walls of both ends of the placement seat 101. The loading rod 52 is sleeved on the limit rod 51, and both ends of the loading rod 52 extend out of both sides of the slideway 1012. The spring 53 is sleeved on the limit rod 51, and both ends of the spring 53 are connected to the loading rod 52 and the inner wall of one end of the placement seat 101 respectively. Assembly blocks 54 are installed at both ends of the loading rod 52, and slots are formed on the adjacent sides of the two assembly blocks 54. The two scraping plates 55 are respectively inserted into the two slots.

[0031] When the film removing module 6 completes the film removing operation and returns to its original position, the film removing module 6 pushes the assembly block 54 to drive the loading rod 52 to slide along the slideway 1012, and the spring 53 is compressed. At this time, the scraping plate 55 moves with the assembly block 54 to scrape the colloid overflowing from both sides of the edge after the liquid crystal screen and the touch screen are bonded. When the film removing module 6 is completely reset and the film removing module 6 no longer touches the assembly block 54, under the elastic force of the spring 53, the loading rod 52 drives the assembly block 54 and the scraping plate 55 to return to their original positions, waiting for the next rubber scraping operation, realizing the automation of colloid cleaning and improving the production efficiency.

[0032] As Figure 3 shown in Figure 11As shown in the figure, in this embodiment, the film removing module 6 includes a mounting block 61. The back of the machine base 1 is mounted with a horizontally arranged first electric slide rail 62 through the mounting block 61. The driving end of the first electric slide rail 62 is connected with a vertically arranged second electric slide rail 63. The driving end of the second electric slide rail 63 is mounted with a first electric push rod 64. The driving end of the first electric push rod 64 is mounted with a film sticking member 65. The film sticking member 65 includes a vertical rod 651 and a third U-shaped block 652. A vertical rod 651 is mounted on the third U-shaped block 652, and the vertical rod 651 is connected with the driving end of the first electric push rod 64. A roller 653 is rotatably mounted in the middle of the third U-shaped block 652. A sticky layer 654 is sleeved on the roller 653. A second electric push rod 655 is mounted on the third U-shaped block 652. The driving end of the second electric push rod 655 is connected with a clamping plate 656 located on one side of the roller 653. A connecting rod 657 is mounted at one end of the third U-shaped block 652; When performing the film removing operation, the first electric slide rail 62 drives the second electric slide rail 63, the first electric push rod 64 and the film sticking member 65 to move to the edge of the liquid crystal screen. The second electric slide rail 63 drives the first electric push rod 64 to drive the film sticking member 65 to move downwards, so that the roller 653 contacts the OCA optical tape 201. Subsequently, the first electric slide rail 62 drives the second electric slide rail 63 to move horizontally. The roller 653 rolls on the surface of the OCA optical tape 201, and the top release film is stuck up through the sticky layer 654. The second electric push rod 655 drives the clamping plate 656 to approach the roller 653 to clamp the release film. The first electric slide rail 62 continues to move to tear off the release film and remove it manually. At this time, the film sticking member 65 moves to the other end of the placing seat 101. The first electric push rod 64 drives the film sticking member 65 to approach the second electric slide rail 63, so that the connecting rod 657 abuts against the assembly block 54. After the touch screen is attached, the first electric slide rail 62 drives the second electric slide rail 63 to return to the original position. The connecting rod 657 drives the assembly block 54 to slide along the slideway 1012. The scraper 55 scrapes off the overflowing colloid at the edge. After taking down the touch screen and cleaning the scraper 55, the first electric push rod 64 drives the film sticking member 65 to approach the second electric slide rail 63 to release the block of the connecting rod 657 on the assembly block 54. The loading rod 52 drives the assembly block 54 to return to the original position under the action of the spring 53.

[0033] As Figure 1 shown in the figure, in this embodiment, a strip block 103 is mounted on the machine base 1 close to the rotating member 2, and a cutting member 7 is mounted on the frame 102 above the strip block 103; The cutting member 7 includes a third electric push rod 71 and a cutter 72. The third electric push rod 71 is mounted on the frame 102, and the driving end of the third electric push rod 71 is connected with a cutter 72 located above the strip block 103.

[0034] When it is necessary to cut the OCA optical tape 201 or the protective film 202, pull it out from the rotating member 2 and lay it flat on the strip 103. After adjusting the length, the third electric push rod 71 extends to drive the cutter 72 to descend, and cut the OCA optical tape 201 or the protective film 202 on the strip 103 to obtain a size adapted to the liquid crystal screen or the touch screen, ensuring the smooth progress of the subsequent bonding operation.

[0035] The specific working principle of the present invention is as follows: Place the liquid crystal screen on the placement seat 101 of the machine base 1, pull out and cut the OCA optical tape 201. Pull out the OCA optical tape 201 from the expansion shaft 24 of the rotating member 2 and lay it flat on the strip 103. Drive the cutter 72 to cut off by the third electric push rod 71 of the cutting member 7 to obtain a suitable length. Remove the release film at the bottom of the OCA optical tape 201 and stick it on the liquid crystal screen; The hot air blower 42 of the air source switching member 4 works. The hot air enters the exhaust air pipe 333 of the roller pressing and blowing member 33 through the air supply pipe 41 and the air guide pipe 44, and blows out from the exhaust air nozzle 334 to heat the OCA optical tape 201, enhancing its fluidity to fill the fine gaps of the liquid crystal screen. Subsequently, the air cylinder 35 drives the U-shaped seat 31 to descend, so that the roller pressing and blowing member 33 contacts the OCA optical tape 201. Under the action of the screen resistance, the follower arm 322 of the follower 32 tilts, driving the roller pressing and blowing member 33 to roll from the middle to both ends. At the same time, the finger pressing block 345 of the finger pressing member 34 applies a local pressure to the surface of the OCA optical tape 201 to further discharge the air; Subsequently, the first electric slide rail 62 and the second electric slide rail 63 of the film removing module 6 move, so that the roller shaft 653 of the film sticking member 65 contacts the OCA optical tape 201, and the top release film is stuck up through the sticking layer 654. The second electric push rod 655 drives the clamping plate 656 to clamp the release film and tear it off. Then place the touch screen on the liquid crystal screen attached with the OCA optical tape 201. The rotating member 2 switches positions, pulls out and cuts the protective film 202 to make its size adapted to the touch screen, and then stick the protective film 202 on the touch screen; The air source switching member 4 switches to the cold air blower 43, and the cold air blows out through the same path to cool the OCA optical tape 201, restoring its viscosity to avoid the offset of the touch screen. The air cylinder 35 drives the U-shaped seat 31 to descend again, and the roller pressing and blowing member 33 rolls from the middle of the touch screen to both ends under the action of the follower 32. The finger pressing member 34 moves accordingly and applies a local pressure to ensure the tight fit of the touch screen and the liquid crystal screen and discharge the residual air; After the film removing module 6 finishes film removing and returns to its original position, its connecting rod 657 pushes the assembly block 54 of the glue scraping member 5, causing the loading rod 52 to slide along the slideway 1012, compressing the spring 53, and the squeegee 55 to move along both sides of the screen body to scrape the overflowing colloid during roll pressing. After the film removing module 6 is completely reset, it no longer touches the assembly block 54, and the elastic force of the spring 53 causes the loading rod 52 to drive the assembly block 54 and the squeegee 55 to return to their original positions, completing a full lamination operation.

[0036] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modification examples falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A full lamination processing device for a touch screen, characterized in that, It includes a machine base (1), a roll pressing module (3), an air source switching component (4), a glue scraping component (5) and a film removing module (6); A placing seat (101) for placing the screen body is installed on the machine base (1). A rotating component (2) is installed on the side of the machine base (1). A rolled OCA optical tape (201) and a protective film (202) are sleeved on the rotating component (2). The roll pressing module (3) is arranged above the placing seat (101) and is used to apply a roll pressing force from the middle to both ends to the screen body. The roll pressing module (3) includes a plurality of finger pressing components (34). During roll pressing, the finger pressing components (34) move on the surface of the screen body to apply local pressure; The air source switching component (4) can switch hot air and cold air to be conducted to the roll pressing module (3) and blown to the screen body area; A glue scraping component (5) is installed on the placing seat (101). The film removing module (6) is used to remove the release film on the OCA optical tape (201) and push the glue scraping component (5) to move along both sides of the screen body when returning to the original position, so as to remove the overflowing glue during roll pressing of the screen body.

2. The full lamination processing device for a touch screen according to claim 1, wherein, The rotating component (2) includes a support plate (21), a support arm (22) and a motor (23). The support plate (21) is installed on the side of the machine base (1). The motor (23) is installed on the support plate (21). The output end of the motor (23) is connected with a support arm (22). Expansion shafts (24) are rotatably installed at both ends of the support arm (22). The rolled OCA optical tape (201) and the protective film (202) are respectively sleeved on the two expansion shafts (24).

3. The fully laminated processing device for a touch screen according to claim 1, characterized in that, The roll pressing module (3) further includes a U-shaped seat (31), a follower component (32), two roll pressing blowing components (33) and a cylinder (35). A frame (102) is installed on the machine base (1). The cylinder (35) is installed on the frame (102). The U-shaped seat (31) is located above the placing seat (101) and is connected with the cylinder (35) and is driven to move up and down by the cylinder (35). The two roll pressing blowing components (33) are symmetrically arranged below the U-shaped seat (31). Follower components (32) are connected between the two roll pressing blowing components (33) and the U-shaped seat (31). A plurality of finger pressing components (34) arranged at intervals are installed on the side of the two roll pressing blowing components (33) away from each other.

4. A full lamination processing device for a touch screen according to claim 3, characterized in that, The roll pressing blowing component (33) includes a triangular block (331), a pressing roller (332) and an exhaust duct (333). Triangular blocks (331) are installed at both ends of the exhaust duct (333). Two symmetrically arranged pressing rollers (332) are rotatably installed between the two triangular blocks (331). The two pressing rollers (332) are located below the exhaust duct (333) and form a triangular structure with it. An air passing channel is formed between the two pressing rollers (332). A plurality of exhaust nozzles (334) facing the air passing channel are connected to the bottom of the exhaust duct (333). The exhaust duct (333) is communicated with the air source switching component (4). A plurality of finger pressing components (34) arranged at intervals are installed on the side of the two exhaust ducts (333) away from each other; The follower (32) includes a first shaft rod (321) and a first U-shaped block (324). Two symmetrically arranged first shaft rods (321) are rotatably installed in the U-shaped seat (31). Follower arms (322) are sleeved on both of the two first shaft rods (321). The two follower arms (322) incline outward from the bottom of the U-shaped seat (31) and are symmetrically distributed. A first torsion spring (323) is sleeved on the first shaft rod (321), and the two ends of the first torsion spring (323) are respectively connected to the follower arm (322) and the inner wall of the U-shaped seat (31). First U-shaped blocks (324) are installed on both of the two exhaust ducts (333). A second shaft rod (325) is rotatably installed in the first U-shaped block (324). The bottom ends of the two follower arms (322) are respectively sleeved on the two second shaft rods (325). A second torsion spring (326) is sleeved on the second shaft rod (325), and the two ends of the second torsion spring (326) are respectively connected to the follower arm (322) and the inner wall of the first U-shaped block (324).

5. A full lamination processing device for a touch screen according to claim 4, characterized in that, The finger pressing member (34) includes a second U-shaped block (341). A plurality of second U-shaped blocks (341) arranged at intervals are installed on the outer sides of the two exhaust ducts (333) away from each other. A third shaft rod (342) is rotatably installed in the second U-shaped block (341). A connecting arm (343) is sleeved on the third shaft rod (342), and the connecting arm (343) inclines downward from the bottom end of the second U-shaped block (341). A third torsion spring (344) is sleeved on the third shaft rod (342), and the two ends of the third torsion spring (344) are respectively connected to the connecting arm (343) and the inner wall of the second U-shaped block (341). A finger pressing block (345) is installed at the bottom end of the connecting arm (343).

6. A full lamination processing device for a touch screen according to claim 4, characterized in that, The air source switching member (4) includes an air supply duct (41), a hot air blower (42) and a cold air blower (43). The air supply duct (41) is installed on the machine frame (102). The hot air blower (42) and the cold air blower (43) are respectively connected to the two ends of the air supply duct (41). Two air guide ducts (44) are connected to the air supply duct (41). The two air guide ducts (44) are respectively communicated with the two exhaust ducts (333).

7. A full lamination processing device for a touch screen according to claim 1, characterized in that, The rubber scraping member (5) includes a limit rod (51), a loading rod (52), a spring (53), an assembly block (54) and two scraping plates (55). A placement groove (1011) is formed at the top of the placement seat (101). A slideway (1012) is formed in the placement seat (101), and the slideway (1012) penetrates through both sides of the placement seat (101). The limit rod (51) is arranged in the slideway (1012), and both ends of the limit rod (51) are fixed to the inner walls at both ends of the placement seat (101). The loading rod (52) is sleeved on the limit rod (51), and both ends of the loading rod (52) respectively extend out of both sides of the slideway (1012). The spring (53) is sleeved on the limit rod (51), and both ends of the spring (53) are respectively connected to the loading rod (52) and the inner wall of one end of the placement seat (101). Assembly blocks (54) are installed at both ends of the loading rod (52). Slots are formed on the adjacent sides of the two assembly blocks (54), and the two scraping plates (55) are respectively inserted into the two slots.

8. A full lamination processing device for a touch screen according to claim 7, characterized in that, The film removing module (6) includes a mounting block (61). A horizontally arranged first electric slide rail (62) is installed on the back of the machine base (1) through the mounting block (61). The driving end of the first electric slide rail (62) is connected to a vertically arranged second electric slide rail (63). The driving end of the second electric slide rail (63) is installed with a first electric push rod (64). The driving end of the first electric push rod (64) is installed with a film sticking member (65).

9. A full lamination processing device for a touch screen according to claim 8, wherein, The film sticking member (65) includes a vertical rod (651) and a third U-shaped block (652). A vertical rod (651) is installed on the third U-shaped block (652), and the vertical rod (651) is connected to the driving end of the first electric push rod (64). A roller shaft (653) is rotatably installed in the middle of the third U-shaped block (652). An adhesive layer (654) is sleeved on the roller shaft (653). A second electric push rod (655) is installed on the third U-shaped block (652). The driving end of the second electric push rod (655) is connected to a clamping plate (656) located on one side of the roller shaft (653). A connecting rod (657) is installed at one end of the third U-shaped block (652).

10. A full lamination processing device for a touch screen according to claim 3, characterized in that, A strip block (103) is installed on the machine base (1) close to one side of the rotating member (2). A cutting member (7) is installed on the frame (102) above the strip block (103); The cutting member (7) includes a third electric push rod (71) and a cutter (72). The third electric push rod (71) is installed on the frame (102), and the driving end of the third electric push rod (71) is connected to a cutter (72) located above the strip block (103).

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