OCA optical adhesive production equipment and OCA optical adhesive manufacturing method

Abstract

The present application relates to the technical field of OCA optical adhesive production, and specifically discloses an OCA optical adhesive production device and an OCA optical adhesive manufacturing method, the technical solution of which is as follows: comprising a support frame, the support frame is provided with a striping mechanism, a first laminating mechanism, a first die-cutting mechanism, a second laminating mechanism, a second die-cutting mechanism and a collecting mechanism from one end to the other end, and the support frame is also provided with a first winding assembly, a second winding assembly and a third winding assembly. The present application has the effect of simultaneously improving the production efficiency and production quality of OCA optical adhesive.

Description

Technical Field

[0001] The present application relates to the technical field of OCA optical adhesive production, and in particular to an OCA optical adhesive production device and an OCA optical adhesive manufacturing method. Background Art

[0002] OCA optical adhesive mainly refers to a special double-sided adhesive film without a substrate used to bond two layers of optical components. OCA optical adhesive is made of optical acrylic adhesive without a substrate, and then a layer of release film is attached to the upper and lower layers. It is a double-sided adhesive tape without a substrate material.

[0003] In the production process of OCA optical adhesive, it is generally necessary to carry out the OCA optical adhesive mother roll slitting process, the OCA optical adhesive and the upper and lower two layers of release film bonding process, the die-cutting process, the OCA optical adhesive and release film waste removal process and the OCA optical adhesive slice collection process in sequence. The transportation and winding and unwinding operations between each process are cumbersome, which greatly reduces the production efficiency of OCA optical adhesive. In addition, OCA optical adhesive and release film are easily affected by environmental factors during large-scale transportation and winding and unwinding, which reduces the production quality of OCA optical adhesive. This problem needs to be solved urgently. Summary of the invention

[0004] In order to improve both the production efficiency and the production quality of OCA optical adhesive, the present application provides an OCA optical adhesive production device and an OCA optical adhesive manufacturing method.

[0005] The present application provides an OCA optical adhesive production device and an OCA optical adhesive manufacturing method, which adopts the following technical solutions:

[0006] An OCA optical adhesive production device comprises a support frame, wherein the support frame is provided with:

[0007] A slitting mechanism, which is arranged at one end of the support frame and is used for slitting and conveying the OCA optical masterbatch roll;

[0008] A first bonding mechanism, which is arranged on the support frame and located behind the slitting mechanism in the conveying direction, and is used to receive the OCA optical adhesive after the slitting operation and perform the first bonding operation on the OCA optical adhesive and the release film of the lower layer. The support frame is also provided with a first winding assembly for winding the self-contained film of the OCA optical adhesive, and the first winding assembly is located on one side of the first bonding mechanism;

[0009] A first die-cutting mechanism, which is disposed on the support frame and is located behind the first laminating mechanism in the conveying direction and is used to perform a first die-cutting operation on the OCA optical adhesive and the lower release film after the first laminating operation. The support frame is also provided with a second winding component for winding up the OCA optical adhesive edge material generated after the first die-cutting operation, and the second winding component is located on one side of the first die-cutting mechanism;

[0010] A second bonding mechanism, which is disposed on the support frame and located behind the first die-cutting mechanism in the conveying direction and is used to receive the OCA optical adhesive after the first die-cutting operation and perform a second bonding operation on the OCA optical adhesive and the upper release film;

[0011] A second die-cutting mechanism, the second die-cutting mechanism is arranged on the support frame and is located behind the second laminating mechanism in the conveying direction, and is used to perform a second die-cutting operation on the upper release film after the second laminating operation. The support frame is also provided with a third winding assembly for winding up the edge material of the upper release film generated after the second die-cutting operation, and the third winding assembly is located on one side of the second die-cutting mechanism;

[0012] A collecting mechanism is disposed on the supporting frame and is located behind the second die-cutting mechanism in a conveying direction and is used for collecting the OCA optical adhesive completed by the second die-cutting operation.

[0013] By adopting the above technical scheme, the support frame supports the slitting mechanism, the first bonding mechanism, the first die-cutting mechanism, the second bonding mechanism, the second die-cutting mechanism and the collecting mechanism, and at the same time integrates the slitting process of the OCA optical adhesive master roll, the bonding process of the OCA optical adhesive and the upper and lower layers of release films, the die-cutting process, the removal process of the OCA optical adhesive and the release film waste, and the slicing and collecting process of the OCA optical adhesive. When it is necessary to produce the OCA optical adhesive product, the slitting mechanism strips the OCA optical adhesive master roll and transports it backwards, and then the first bonding mechanism takes over the OCA optical adhesive after the stripping operation is completed and bonds the lower layer of release film to the lower surface of the OCA optical adhesive to realize the first bonding operation, and the first winding component winds up the self-contained film of the OCA optical adhesive, so that the OCA optical adhesive is transported along with the lower layer of release film, and the first die-cutting mechanism is positioned at the bottom of the OCA optical adhesive. The first die-cutting operation is performed on the bonded OCA optical glue and the lower release film at the rear of the conveying direction of the first bonding mechanism, and then the second winding component winds up the edge material of the OCA optical glue. Then the second bonding mechanism takes over the OCA optical glue and the lower release film after the first die-cutting operation and bonds the upper release film to the upper surface of the OCA optical glue to achieve a second bonding operation. The second die-cutting mechanism is located at the rear of the conveying direction of the second bonding mechanism and performs a second die-cutting operation on the upper release film. Then the third winding component winds up the edge material of the upper release film, and finally the collecting mechanism collects the OCA optical glue products. The production process of the OCA optical glue products is seamlessly connected, and does not require a large number of transportation and winding and unwinding operations, thereby reducing the impact of environmental factors, thereby simultaneously improving the production efficiency and production quality of the OCA optical glue.

[0014] Preferably, the slitting mechanism includes a glue delivery roller, a tensioning roller and a slitting wheel, the glue delivery roller and the tensioning roller are both horizontally rotatably connected to the support frame, the glue delivery roller is covered with an OCA optical glue master roll, the tensioning roller is located behind the glue delivery roller in the discharge direction, and the slitting wheel is rotatably connected to the support frame for performing slitting operations along the conveying direction of the OCA optical glue.

[0015] By adopting the above technical solution, the glue discharge roller discharges the OCA optical glue mother roll, and the tensioning roller tensions the conveyed OCA optical glue, so that the slitting wheel can slitting the OCA optical glue, which is beneficial to improving the slitting quality of the OCA optical glue.

[0016] Preferably, the first laminating mechanism includes a first film-discharging roller, a first upper pressing roller and a first lower pressing roller, the first film-discharging roller, the first upper pressing roller and the first lower pressing roller are all horizontally rotatably connected to the support frame, the first film-discharging roller is rolled with a lower layer of release film, the first upper pressing roller and the first lower pressing roller are located behind the first film-discharging roller in the discharging direction and are arranged to rotate towards each other, and there is a gap between the first upper pressing roller and the first lower pressing roller for the OCA optical glue and the lower layer of release film to pass through.

[0017] By adopting the above technical scheme, the first film discharge roller discharges the lower release film, the OCA optical glue and the lower release film are stacked and penetrate into the gap between the first upper pressing roller and the first lower pressing roller, the first upper pressing roller and the first lower pressing roller press the OCA optical glue and the lower release film, so that the lower release film is attached to the lower surface of the OCA optical glue, and the first upper pressing roller and the first lower pressing roller rotate towards each other to drive the OCA optical glue and the lower release film to continue to be transported backward.

[0018] Preferably, the first winding assembly includes a first reversing roller and a first winding roller, the first reversing roller and the first winding roller are both rotatably connected to the support frame, the first reversing roller is located between the first laminating mechanism and the first die-cutting mechanism, and the first winding roller is located on one side of the first reversing roller.

[0019] By adopting the above technical solution, the OCA optical adhesive has a self-contained film, and the self-contained film of the OCA optical adhesive is wound around the first reversing roller and then rolled up on the first winding roller, so as to facilitate the subsequent attachment operation of the upper release film on the upper surface of the OCA optical adhesive.

[0020] Preferably, the first die-cutting mechanism includes a first supporting roller and a first pressing roller, the first supporting roller and the first pressing roller are both horizontally rotatably connected to the supporting frame, the first supporting roller and the first pressing roller are arranged to rotate towards each other, and there is a gap between the first supporting roller and the first pressing roller for the OCA optical glue and the lower release film to pass through, and the first pressing roller is fixedly provided with a first die-cutting knife for die-cutting the OCA optical glue and the lower release film.

[0021] By adopting the above technical scheme, after the self-contained film of the OCA optical adhesive is separated from the OCA optical adhesive, the OCA optical adhesive and the lower release film are stacked and penetrate into the gap between the first supporting roller and the first pressing roller, and the first supporting roller and the first pressing roller rotate towards each other to drive the OCA optical adhesive and the lower release film to be transported backwards. While the OCA optical adhesive and the lower release film are being transported backwards, the first die-cutting knife performs die-cutting operations on the OCA optical adhesive and the lower release film as the first pressing roller rotates, thereby helping to improve the production efficiency of the OCA optical adhesive.

[0022] Preferably, the second winding assembly includes a second reversing roller and a second winding roller, the second reversing roller and the second winding roller are both rotatably connected to the support frame, the second reversing roller is located between the first die-cutting mechanism and the second laminating mechanism, and the second winding roller is located on one side of the second reversing roller.

[0023] By adopting the above technical solution, the edge material after the die-cutting operation of OCA optical glue is regarded as waste material. The edge material after the die-cutting operation of OCA optical glue is wound around the second reversing roller and then rolled up on the second winding roller to facilitate the subsequent attachment operation of the upper release film on the upper surface of the OCA optical glue.

[0024] Preferably, the second laminating mechanism includes a second film-delivery roller, a second upper pressing roller and a second lower pressing roller, the second film-delivery roller, the second upper pressing roller and the second lower pressing roller are all horizontally rotatably connected to the support frame, the second film-delivery roller is rolled with an upper release film, the second upper pressing roller and the second lower pressing roller are located behind the discharge direction of the second film-delivery roller and are rotated towards each other, and there is a gap between the second upper pressing roller and the second lower pressing roller for the upper release film, the OCA optical glue and the lower release film to pass through.

[0025] By adopting the above technical scheme, the second film-discharging roller discharges the upper release film, and the upper release film, OCA optical glue and lower release film are stacked and penetrate into the gap between the second upper pressing roller and the second lower pressing roller, and the second upper pressing roller and the second lower pressing roller press the upper release film and the OCA optical glue to make the upper release film attached to the upper surface of the OCA optical glue, and the second upper pressing roller and the second lower pressing roller rotate towards each other to drive the upper release film, OCA optical glue and lower release film to continue to be transported backward.

[0026] Preferably, the second die-cutting mechanism includes a second supporting roller and a second pressing roller, the second supporting roller and the second pressing roller are horizontally rotatably connected to the supporting frame, the second supporting roller and the second pressing roller are arranged to rotate towards each other, and there is a gap between the second supporting roller and the second pressing roller for the upper release film, the OCA optical glue and the lower release film to pass through, and the second pressing roller is fixedly provided with a second die-cutting knife for die-cutting the upper release film.

[0027] By adopting the above technical scheme, after the upper release film is attached to the upper surface of the OCA optical glue, the upper release film, the OCA optical glue and the lower release film are stacked and penetrate into the gap between the second support tube and the second pressing roller, the second support roller and the second pressing roller rotate towards each other to drive the upper release film, the OCA optical glue and the lower release film to be transported backwards, while the upper release film, the OCA optical glue and the lower release film are being transported backwards, the second die-cutting knife performs a die-cutting operation on the upper release film as the second pressing roller rotates.

[0028] Preferably, the collecting mechanism comprises a third upper pressing roller, a third lower pressing roller, a fourth winding roller and a collecting box, the third upper pressing roller, the third lower pressing roller and the fourth winding roller are all horizontally rotatably connected to the supporting frame, the third upper pressing roller and the third lower pressing roller are arranged to rotate towards each other, and there is a gap between the third upper pressing roller and the third lower pressing roller for OCA optical glue, upper release film and lower release film to pass through, the entrance of the collecting box is close to the gap between the third upper pressing roller and the third lower pressing roller, and the fourth winding roller is located below the collecting box and is used for winding up the edge material of the lower release film.

[0029] By adopting the above technical solution, the fourth winding roller is located below the collecting box and is used to wind up the edge material of the lower release film. The conveying route of the lower release film is reversed at the gap between the third upper pressing roller and the third lower pressing roller, so that the die-cut OCA optical adhesive product is separated from the edge material of the lower release film. The entrance of the collecting box is close to the gap between the third upper pressing roller and the third lower pressing roller to collect the die-cut OCA optical adhesive product without manual separation, which is simple and convenient.

[0030] A method for manufacturing an OCA optical adhesive comprises the following steps:

[0031] S1: The slitting mechanism slits the OCA optical masterbatch and transports it backward on the support frame;

[0032] S2: The first bonding mechanism receives the slit OCA optical adhesive and delivers the lower release film to be bonded to the lower surface of the OCA optical adhesive to achieve the first bonding operation. When the first bonding operation is completed, the self-contained film of the OCA optical adhesive is rolled up in the first winding component;

[0033] S3: The first die-cutting mechanism receives the OCA optical glue and the lower release film after the first lamination operation is completed, and performs the first die-cutting operation on the OCA optical glue and the lower release film according to the required size of the OCA optical glue product. After the first die-cutting operation is completed, the edge material of the OCA optical glue is rolled up in the second winding component, and the OCA optical glue continues to be transported backward with the lower release film;

[0034] S4: The second bonding mechanism receives the OCA optical adhesive and the lower release film after the first die-cutting operation, and bonds the upper release film to the upper surface of the OCA optical adhesive to achieve a second bonding operation;

[0035] S5: The second die-cutting mechanism receives the OCA optical adhesive, the upper release film and the lower release film after the second lamination operation, and performs a second die-cutting operation on the upper release film according to the required size of the OCA optical adhesive product. When the second die-cutting operation is completed, the edge material of the upper release film is rolled up in the third winding component;

[0036] S6: The second collecting mechanism receives the OCA optical adhesive, the upper release film and the lower release film after the second die-cutting operation, and separates the OCA optical adhesive, the upper release film and the lower release film after two die-cutting operations from the lower release film edge material to realize the collection of the OCA optical adhesive product.

[0037] By adopting the above technical scheme, in the production process of OCA optical adhesive products, the slitting mechanism slits the OCA optical adhesive mother roll and conveys it backward, the first bonding mechanism receives the slit OCA optical adhesive, and attaches the lower release film to the lower surface of the OCA optical adhesive, thereby completing the first bonding operation of the OCA optical adhesive, and then the first winding component separates and winds up the self-contained film of the OCA optical adhesive, so that the subsequent second bonding mechanism can attach the upper release film to the upper surface of the OCA optical adhesive, and then the first die-cutting mechanism receives the OCA optical adhesive and the lower release film after the first bonding operation is completed, and performs the first die-cutting operation on the OCA optical adhesive and the lower release film according to the required size of the OCA optical adhesive product, and when the first die-cutting operation is completed, the second winding component separates and winds up the edge material of the OCA optical adhesive, and then the second bonding mechanism The first structure receives the OCA optical glue and the lower release film after the first die-cutting operation, and attaches the upper release film to the upper surface of the OCA optical glue, thereby completing the second bonding operation of the OCA optical glue. Then the second die-cutting mechanism receives the upper release film, the OCA optical glue and the lower release film after the second bonding operation is completed, and performs a second die-cutting operation on the upper release film according to the required size of the OCA optical glue product. Then the third winding component separates and winds up the edge material of the upper release film after die-cutting. Finally, the second collecting mechanism separates the OCA optical glue product from the lower release film to realize the collection of the OCA optical glue product. The production process of the OCA optical glue product is seamlessly connected, and does not require a large number of transportation and winding and unwinding operations, thereby reducing the impact of environmental factors, thereby being able to simultaneously improve the production efficiency and production quality of the OCA optical glue.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. By setting up a slitting mechanism, a first laminating mechanism, a first die-cutting mechanism, a second laminating mechanism, a second die-cutting mechanism and a collecting mechanism, the slitting process of the OCA optical adhesive mother roll, the laminating process of the OCA optical adhesive and the upper and lower layers of release films, the die-cutting process, the removal process of the OCA optical adhesive and the release film waste, and the OCA optical adhesive slicing collection process are integrated together, and the production process of the OCA optical adhesive product is seamlessly connected, and does not require a large number of transfer and winding and unwinding operations, thereby reducing the impact of environmental factors, thereby being able to simultaneously improve the production efficiency and production quality of the OCA optical adhesive.

[0040] 2. By setting the first reversing roller and the first winding roller, the OCA optical adhesive has a self-contained film. The self-contained film of the OCA optical adhesive is wound around the first reversing roller and then wound on the first winding roller, so as to facilitate the subsequent attachment operation of the upper release film on the upper surface of the OCA optical adhesive.

[0041] 3. By setting a second reversing roller and a second winding roller, the edge material after the die-cutting operation of the OCA optical adhesive is regarded as waste material. The edge material after the die-cutting operation of the OCA optical adhesive is wound around the second reversing roller and then wound on the second winding roller, so as to facilitate the subsequent attachment operation of the upper release film on the upper surface of the OCA optical adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the OCA optical adhesive production equipment in the embodiment of the present application.

[0043] Figure 2 It is a schematic diagram of the position of the striping mechanism in the OCA optical adhesive production equipment in the embodiment of the present application.

[0044] Figure 3 It is a schematic diagram of the positions of the first bonding mechanism and the first winding component in the OCA optical adhesive production equipment in the embodiment of the present application.

[0045] Figure 4 It is a schematic diagram of the positions of the first die-cutting mechanism and the second winding assembly in the OCA optical adhesive production equipment in an embodiment of the present application.

[0046] Figure 5 It is a schematic diagram of the position of the second bonding mechanism in the OCA optical adhesive production equipment in the embodiment of the present application.

[0047] Figure 6 It is a schematic diagram of the positions of the second die-cutting mechanism and the third winding assembly in the OCA optical adhesive production equipment in the embodiment of the present application.

[0048] Figure 7 It is a schematic diagram of the position of the collecting mechanism in the OCA optical adhesive production equipment in the embodiment of the present application.

[0049] Description of reference numerals:

[0050] 1. Support frame; 2. Slitting mechanism; 21. Glue discharging roller; 22. Tensioning roller; 23. Slitting wheel; 3. First laminating mechanism; 31. First film discharging roller; 32. First upper pressing roller; 33. First lower pressing roller; 4. First winding assembly; 41. First reversing roller; 42. First winding roller; 5. First die-cutting mechanism; 51. First supporting roller; 52. First pressing roller; 6. Second winding assembly; 61. Second reversing roller; 62. Second winding roller; 7. , second laminating mechanism; 71, second film-discharging roller; 72, second upper pressure roller; 73, second lower pressure roller; 8, second die-cutting mechanism; 81, second supporting roller; 82, second pressing and cutting roller; 9, third winding assembly; 91, third reversing roller; 92, third winding roller; 10, collecting mechanism; 101, third upper pressure roller; 102, third lower pressure roller; 103, fourth winding roller; 104, collecting box; 11, first die-cutting knife; 12, second die-cutting knife. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-7 This application is described in further detail.

[0052] The present application embodiment discloses an OCA optical adhesive production device, referring to Figure 1, comprising a support frame 1, wherein the support frame 1 is provided with a striping mechanism 2, a first bonding mechanism 3, a first die-cutting mechanism 5, a second bonding mechanism 7, a second die-cutting mechanism 8 and a collecting mechanism 10 in sequence from one end to the other end thereof in the horizontal direction, the striping mechanism 2 is used for striping and conveying the OCA optical adhesive mother roll, the first bonding mechanism 3 is used for receiving the OCA optical adhesive after the striping operation is completed and attaching the lower layer release film to the lower surface of the OCA optical adhesive to complete the first bonding operation, the first die-cutting mechanism 5 is used for receiving the OCA optical adhesive after the first bonding operation and attaching the lower layer release film to the lower surface of the OCA optical adhesive The release film is taken over and the first die-cutting operation is performed on the OCA optical glue and the lower release film. The second bonding mechanism 7 is used to take over the OCA optical glue and the lower release film after the first die-cutting operation and attach the upper release film to the upper surface of the OCA optical glue to complete the second bonding operation. The second die-cutting mechanism 8 is used to take over the upper release film, OCA optical glue and the lower release film after the second bonding operation and perform a second die-cutting operation on the upper release film. The collecting mechanism 10 is used to collect the OCA optical glue products after the second die-cutting operation is completed. At the same time, the support frame 1 is also provided with a first winding component 4, a second winding component 6 and a third winding component 9, wherein the first winding component 4 is located on one side of the first bonding mechanism 3 and is used for winding the self-contained film of the OCA optical glue, the second winding component 6 is located on one side of the first die-cutting mechanism 5 and is used for winding the OCA optical glue edge material generated after the first die-cutting operation, and the third winding component 9 is located on one side of the second die-cutting mechanism 8 and is used for winding the upper release film edge material generated after the second die-cutting operation, so that the attachment operation of the upper release film and the lower release film on the upper surface and the lower surface of the OCA optical glue can be carried out smoothly, and the production process of the OCA optical glue product is seamlessly connected, and does not require a large number of transportation and winding and unwinding operations, thereby reducing the impact of environmental factors, thereby being able to simultaneously improve the production efficiency and production quality of the OCA optical glue.

[0053] Reference Figure 2 The slitting mechanism 2 is arranged at one end of the support frame 1. Specifically, the slitting mechanism 2 includes a glue discharge roller 21, a tensioning roller 22 and a slitting wheel 23. The glue discharge roller 21 and the tensioning roller 22 are both horizontally rotatably connected to the side wall of the support frame 1, and the glue discharge roller 21 and the tensioning roller 22 are arranged in parallel. The glue discharge roller 21 is rolled with an OCA optical adhesive master roll, and the OCA optical adhesive is transported out from the glue discharge roller 21. The tensioning roller 22 is located behind the discharge direction of the glue discharge roller 21. In this embodiment, two tensioning rollers 22 are provided, and the two tensioning rollers 22 are arranged at intervals to tension the transported OCA optical adhesive. The slitting wheel 23 is rotatably connected to the support frame 1 and is located between the two tensioning rollers 22 for performing slitting operations along the conveying direction of the OCA optical adhesive.

[0054] Reference Figure 3The first laminating mechanism 3 is located behind the slitting mechanism 2 in the conveying direction. Specifically, the first laminating mechanism 3 includes a first film-exiting roller 31, a first upper pressing roller 32 and a first lower pressing roller 33. The first film-exiting roller 31, the first upper pressing roller 32 and the first lower pressing roller 33 are all horizontally rotatably connected to the side wall of the support frame 1, and the first film-exiting roller 31, the first upper pressing roller 32 and the first lower pressing roller 33 are arranged in parallel. The first film-exiting roller 31 is rolled with a lower release film, and the lower release film is conveyed out from the first film-exiting roller 31. The first upper pressing roller 32 and the first lower pressing roller 33 are located behind the first film discharge roller 31 in the discharge direction and are arranged to rotate towards each other, and there is a gap between the first upper pressing roller 32 and the first lower pressing roller 33 for the OCA optical adhesive and the lower release film to pass through. When the OCA optical adhesive and the lower release film pass through the gap between the first upper pressing roller 32 and the first lower pressing roller 33, the first upper pressing roller 32 and the first lower pressing roller 33 press the lower release film tightly against the lower surface of the OCA optical adhesive to complete the first bonding operation of the OCA optical adhesive.

[0055] Reference Figure 3 The first winding assembly 4 includes a first reversing roller 41 and a first winding roller 42, both of which are rotatably connected to the support frame 1, and the first reversing roller 41 and the first winding roller 42 are arranged in parallel, the first reversing roller 41 is located between the first laminating mechanism 3 and the first die-cutting mechanism 5, and the first winding roller 42 is located on one side of the first reversing roller 41. The self-contained film of the OCA optical adhesive is separated after passing through the first reversing roller 41, and finally the self-contained film of the OCA optical adhesive is wound on the first winding roller 42.

[0056] Reference Figure 4 The first die-cutting mechanism 5 is located behind the first laminating mechanism 3 in the conveying direction. Specifically, the first die-cutting mechanism 5 includes a first supporting roller 51 and a first pressing roller 52. The first supporting roller 51 and the first pressing roller 52 are both horizontally rotatably connected to the side wall of the supporting frame 1, and the first pressing roller 52 is located above the first supporting roller 51. The first supporting roller 51 and the first pressing roller 52 are arranged to rotate in opposite directions. There is a gap between the first supporting roller 51 and the first pressing roller 52 for the OCA optical glue and the lower release film to pass through. The first pressing roller 52 is fixedly provided with a first die-cutting knife 11 for die-cutting the OCA optical glue and the lower release film. The outer dimensions of the first die-cutting knife 11 are set according to the outer dimensions of the OCA optical glue product. When the OCA optical glue and the lower release film pass through the gap between the first pressing roller 52 and the first supporting roller 51, the rotating first pressing roller 52 drives the first die-cutting knife 11 to die-cut the OCA optical glue and the lower release film. It should be noted that after the die-cutting operation, the OCA optical adhesive and the lower release film continue to be connected to the edge material of the lower release film and are transported backward.

[0057] Reference Figure 4The second winding assembly 6 includes a second reversing roller 61 and a second winding roller 62, which are both rotatably connected to the support frame 1, and the second reversing roller 61 and the second winding roller 62 are arranged in parallel, the second reversing roller 61 is located between the first die-cutting mechanism 5 and the second laminating mechanism 7, and the second winding roller 62 is located on one side of the second reversing roller 61. The edge material of the OCA optical glue after die-cutting is separated after passing through the second reversing roller 61, and finally the edge material of the OCA optical glue is wound on the second winding roller 62.

[0058] Reference Figure 5 The second laminating mechanism 7 is located behind the first die-cutting mechanism 5 in the conveying direction. Specifically, the second laminating mechanism 7 includes a second film-exiting roller 71, a second upper pressing roller 72 and a second lower pressing roller 73. The second film-exiting roller 71, the second upper pressing roller 72 and the second lower pressing roller 73 are all horizontally rotatably connected to the side wall of the support frame 1, and the second film-exiting roller 71, the second upper pressing roller 72 and the second lower pressing roller 73 are arranged in parallel. The second film-exiting roller 71 is rolled with an upper release film, and the upper release film is conveyed out from the second film-exiting roller 71. The second upper pressing roller 72 and the second lower pressing roller 73 are located behind the second film discharge roller 71 in the discharge direction and are arranged to rotate towards each other, and there is a gap between the second upper pressing roller 72 and the second lower pressing roller 73 for the upper release film, the OCA optical adhesive and the lower release film to pass through. When the upper release film, the OCA optical adhesive and the lower release film pass through the gap between the second upper pressing roller 72 and the second lower pressing roller 73, the second upper pressing roller 72 and the second lower pressing roller 73 press the upper release film tightly against the upper surface of the OCA optical adhesive to complete the second bonding operation of the OCA optical adhesive.

[0059] Reference Figure 6 The second die-cutting mechanism 8 is located behind the second laminating mechanism 7 in the conveying direction. Specifically, the second die-cutting mechanism 8 includes a second support roller 81 and a second pressing roller 82. The second support roller 81 and the second pressing roller 82 are horizontally rotatably connected to the side wall of the support frame 1, and the second pressing roller 82 is located above the second support roller 81. The second support roller 81 and the second pressing roller 82 are arranged to rotate in opposite directions. There is a gap between the second support roller 81 and the second pressing roller 82 for the upper release film, the OCA optical glue and the lower release film to pass through. The second pressing roller 82 is fixedly provided with a second die-cutting knife 12 for die-cutting the upper release film. The outer dimensions of the second die-cutting knife 12 are set according to the outer dimensions of the OCA optical glue product. When the upper release film, the OCA optical glue and the lower release film pass through the gap between the second pressing roller 82 and the second support roller 81, the rotating second pressing roller 82 drives the second die-cutting knife 12 to die-cut the upper release film.

[0060] Reference Figure 6The third winding assembly 9 includes a third reversing roller 91 and a third winding roller 92. The third reversing roller 91 and the third winding roller 92 are both rotatably connected to the support frame 1, and the third reversing roller 91 and the third winding roller 92 are arranged in parallel. The third reversing roller 91 is located between the second die-cutting mechanism 8 and the collecting mechanism 10, and the third winding roller 92 is located on one side of the third reversing roller 91. The edge material of the upper release film after die-cutting is separated after passing through the third reversing roller 91, and finally the edge material of the upper release film is wound on the third winding roller 92.

[0061] Reference Figure 7 The collecting mechanism 10 is located behind the second die-cutting mechanism 8 in the conveying direction. Specifically, the collecting mechanism 10 includes a third upper pressing roller 101, a third lower pressing roller 102, a fourth winding roller 103 and a collecting box 104. The third upper pressing roller 101, the third lower pressing roller 102 and the fourth winding roller 103 are all horizontally rotatably connected to the support frame 1, and the third upper pressing roller 101, the third lower pressing roller 102 and the fourth winding roller 103 are arranged in parallel, and the third upper pressing roller 101 and the third lower pressing roller 102 are arranged to rotate towards each other. There is a gap between the third upper pressing roller 101 and the third lower pressing roller 102 for OCA optical glue, upper release film and lower release film to pass through. The collecting box 104 is fixedly arranged on the side wall of the support frame 1, and the entrance of the collecting box 104 is close to the gap between the third upper pressing roller 101 and the third lower pressing roller 102. The fourth winding roller 103 is located below the collecting box 104 and is used to wind up the edge material of the lower release film. It should be noted that the conveying route of the lower layer release film is reversed at the gap between the third upper pressing roller 101 and the third lower pressing roller 102, so that the die-cut OCA optical adhesive product is separated from the edge material of the lower layer release film, and the entrance of the collection box 104 is close to the gap between the third upper pressing roller 101 and the third lower pressing roller 102 to collect the die-cut OCA optical adhesive product.

[0062] A method for manufacturing an OCA optical adhesive comprises the following steps:

[0063] S1: The slitting mechanism 2 slits the OCA optical adhesive master roll and conveys it backward on the support frame 1. Specifically, the OCA optical adhesive master roll is conveyed out from the adhesive roller 21, and the two tensioning rollers 22 tension the conveyed OCA optical adhesive, and then the slitting wheel 23 performs slitting operation along the conveying direction of the OCA optical adhesive;

[0064] S2: The first bonding mechanism 3 receives the slit OCA optical adhesive, and conveys the lower release film to be bonded to the lower surface of the OCA optical adhesive to achieve the first bonding operation. When the first bonding operation is completed, the self-contained film of the OCA optical adhesive is rolled up on the first winding component 4. Specifically, the lower release film is conveyed out from the first film outlet roller 31, and the slit OCA optical adhesive and the lower release film pass through the gap between the first upper pressing roller 32 and the second lower pressing roller 73. The first upper pressing roller 32 and the first lower pressing roller 33 press the lower release film tightly to the lower surface of the OCA optical adhesive to complete the first bonding operation of the OCA optical adhesive. At the same time, the self-contained film of the OCA optical adhesive is separated after passing through the first reversing roller 41. Finally, the self-contained film of the OCA optical adhesive is rolled up on the first winding roller 42.

[0065] S3: The first die-cutting mechanism 5 receives the OCA optical glue and the lower release film after the first lamination operation is completed, and performs the first die-cutting operation on the OCA optical glue and the lower release film according to the required size of the OCA optical glue product. When the first die-cutting operation is completed, the edge material of the OCA optical glue is rolled up on the second winding component 6, and the OCA optical glue continues to be transported backward with the lower release film. Specifically, the OCA optical glue and the lower release film pass through the gap between the first pressing roller 52 and the first supporting roller 51, and the rotating first pressing roller 52 drives the first die-cutting knife 11 to perform a die-cutting operation on the OCA optical glue and the lower release film. At the same time, the edge material of the OCA optical glue after die-cutting is passed around the second reversing roller 61 to achieve edge material separation, and finally the edge material of the OCA optical glue is rolled up on the second winding roller 62;

[0066] S4: The second laminating mechanism 7 receives the OCA optical adhesive and the lower release film after the first die-cutting operation, and laminates the upper release film to the upper surface of the OCA optical adhesive to achieve the second laminating operation. Specifically, the upper release film is conveyed out from the second film-exiting roller 71, and the upper release film, the OCA optical adhesive and the lower release film pass through the gap between the second upper pressing roller 72 and the second lower pressing roller 73. The second upper pressing roller 72 and the second lower pressing roller 73 press the upper release film tightly to the upper surface of the OCA optical adhesive to complete the second laminating operation of the OCA optical adhesive.

[0067] S5: The second die-cutting mechanism 8 receives the OCA optical adhesive, the upper release film and the lower release film after the second laminating operation, and performs a second die-cutting operation on the upper release film according to the required size of the OCA optical adhesive product. When the second die-cutting operation is completed, the edge material of the upper release film is rolled up on the third winding component 9. Specifically, the upper release film, the OCA optical adhesive and the lower release film pass through the gap between the second pressing roller 82 and the second supporting roller 81, and the rotating second pressing roller 82 drives the second die-cutting knife 12 to perform a die-cutting operation on the upper release film. At the same time, the edge material of the upper release film after die-cutting is passed around the third reversing roller 91 to achieve edge material separation, and finally the edge material of the upper release film is rolled up on the third winding roller 92;

[0068] S6: The second collecting mechanism 10 receives the OCA optical glue, the upper release film and the lower release film after the second die-cutting operation, and separates the OCA optical glue, the upper release film and the lower release film after the two die-cutting operations from the lower release film edge material to realize the collection of the OCA optical glue product. Specifically, the upper release film, the OCA optical glue and the lower release film pass through the gap between the third upper pressing roller 101 and the third lower pressing roller 102, and the conveying route of the lower release film is between the third upper pressing roller 101 and the third lower pressing roller 102. The direction is reversed at the gap to separate the die-cut OCA optical adhesive product from the underlayer release film edge material. The entrance of the collecting box 104 is close to the gap between the third upper pressing roller 101 and the third lower pressing roller 102 to collect the die-cut OCA optical adhesive product. Finally, the edge material of the underlayer release film is wound up on the fourth winding roller 103. The entire production process of the OCA optical adhesive product is seamlessly connected, and does not require a large number of transfer and winding and unwinding operations, which reduces the impact of environmental factors, thereby improving the production efficiency and production quality of the OCA optical adhesive at the same time.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An OCA optical adhesive production device, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) is provided with: A slitting mechanism (2), the slitting mechanism (2) being arranged at one end of the support frame (1) and being used for slitting and conveying the OCA optical masterbatch roll; A first bonding mechanism (3), the first bonding mechanism (3) is arranged on the support frame (1) and is located behind the conveying direction of the slitting mechanism (2) and is used to receive the OCA optical adhesive after the slitting operation and perform a first bonding operation on the OCA optical adhesive and the release film on the lower layer; the support frame (1) is also provided with a first winding component (4) for winding the self-contained film of the OCA optical adhesive; the first winding component (4) is located on one side of the first bonding mechanism (3); A first die-cutting mechanism (5), the first die-cutting mechanism (5) is arranged on the support frame (1) and is located behind the first bonding mechanism (3) in the conveying direction, and is used for performing a first die-cutting operation on the OCA optical adhesive and the lower release film after the first bonding operation. The support frame (1) is also provided with a second winding component (6) for winding up the OCA optical adhesive edge material generated after the first die-cutting operation. The second winding component (6) is located on one side of the first die-cutting mechanism (5); A second bonding mechanism (7), the second bonding mechanism (7) is arranged on the support frame (1) and is located behind the first die-cutting mechanism (5) in the conveying direction, and is used to receive the OCA optical glue after the first die-cutting operation and perform a second bonding operation on the OCA optical glue and the upper release film; a second die-cutting mechanism (8), the second die-cutting mechanism (8) being arranged on the support frame (1) and located behind the second laminating mechanism (7) in the conveying direction and used for performing a second die-cutting operation on the upper release film after the second laminating operation; the support frame (1) is also provided with a third winding assembly (9) for winding up the edge material of the upper release film produced after the second die-cutting operation; the third winding assembly (9) is located on one side of the second die-cutting mechanism (8); A collecting mechanism (10), the collecting mechanism (10) being arranged on the supporting frame (1) and located behind the conveying direction of the second die-cutting mechanism (8) and being used for collecting the OCA optical adhesive after the second die-cutting operation; The first laminating mechanism (3) comprises a first film-discharging roller (31), a first upper pressing roller (32) and a first lower pressing roller (33); the first film-discharging roller (31), the first upper pressing roller (32) and the first lower pressing roller (33) are all horizontally rotatably connected to the support frame (1); the first film-discharging roller (31) is rolled with a lower layer of release film; the first upper pressing roller (32) and the first lower pressing roller (33) are located behind the first film-discharging roller (31) in the discharge direction and are arranged to rotate in opposite directions; and there is a gap between the first upper pressing roller (32) and the first lower pressing roller (33) for the OCA optical adhesive and the lower layer of release film to pass through; The second winding assembly (6) comprises a second reversing roller (61) and a second winding roller (62), the second reversing roller (61) and the second winding roller (62) are both rotatably connected to the support frame (1), the second reversing roller (61) is located between the first die-cutting mechanism (5) and the second laminating mechanism (7), and the second winding roller (62) is located on one side of the second reversing roller (61); The first winding assembly (4) comprises a first reversing roller (41) and a first winding roller (42), wherein the first reversing roller (41) and the first winding roller (42) are both rotatably connected to the support frame (1), the first reversing roller (41) is located between the first laminating mechanism (3) and the first die-cutting mechanism (5), and the first winding roller (42) is located on one side of the first reversing roller (41).

2. The OCA optical adhesive production equipment according to claim 1, characterized in that: The slitting mechanism (2) comprises a glue discharge roller (21), a tensioning roller (22) and a slitting wheel (23); the glue discharge roller (21) and the tensioning roller (22) are both horizontally rotatably connected to the support frame (1); the glue discharge roller (21) is rolled with an OCA optical adhesive master roll; the tensioning roller (22) is located behind the glue discharge roller (21) in the discharge direction; and the slitting wheel (23) is rotatably connected to the support frame (1) for performing slitting operations along the conveying direction of the OCA optical adhesive.

3. The OCA optical adhesive production equipment according to claim 1, characterized in that: The first die-cutting mechanism (5) comprises a first supporting roller (51) and a first pressing roller (52), the first supporting roller (51) and the first pressing roller (52) are both horizontally rotatably connected to the supporting frame (1), the first supporting roller (51) and the first pressing roller (52) are arranged to rotate in opposite directions, and there is a gap between the first supporting roller (51) and the first pressing roller (52) for the OCA optical glue and the lower release film to pass through, and the first pressing roller (52) is fixedly provided with a first die-cutting knife (11) for performing a die-cutting operation on the OCA optical glue and the lower release film.

4. The OCA optical adhesive production equipment according to claim 1, characterized in that: The second laminating mechanism (7) comprises a second film-discharging roller (71), a second upper pressing roller (72) and a second lower pressing roller (73); the second film-discharging roller (71), the second upper pressing roller (72) and the second lower pressing roller (73) are all horizontally rotatably connected to the support frame (1); the second film-discharging roller (71) is rolled with an upper release film; the second upper pressing roller (72) and the second lower pressing roller (73) are located behind the second film-discharging roller (71) in the discharge direction and are arranged to rotate in opposite directions; and there is a gap between the second upper pressing roller (72) and the second lower pressing roller (73) for the upper release film, the OCA optical glue and the lower release film to pass through.

5. The OCA optical adhesive production equipment according to claim 1, characterized in that: The second die-cutting mechanism (8) comprises a second supporting roller (81) and a second pressing roller (82); the second supporting roller (81) and the second pressing roller (82) are horizontally rotatably connected to the supporting frame (1); the second supporting roller (81) and the second pressing roller (82) are arranged to rotate in opposite directions; and there is a gap between the second supporting roller (81) and the second pressing roller (82) for the upper release film, the OCA optical adhesive and the lower release film to pass through; the second pressing roller (82) is fixedly provided with a second die-cutting knife (12) for performing a die-cutting operation on the upper release film.

6. The OCA optical adhesive production equipment according to claim 1, characterized in that: The collecting mechanism (10) comprises a third upper pressing roller (101), a third lower pressing roller (102), a fourth winding roller (103) and a collecting box (104); the third upper pressing roller (101), the third lower pressing roller (102) and the fourth winding roller (103) are all horizontally rotatably connected to the supporting frame (1); the third upper pressing roller (101) and the third lower pressing roller (102) are arranged to rotate towards each other; there is a gap between the third upper pressing roller (101) and the third lower pressing roller (102) for the OCA optical glue, the upper release film and the lower release film to pass through; the entrance of the collecting box (104) is close to the gap between the third upper pressing roller (101) and the third lower pressing roller (102); the fourth winding roller (103) is located below the collecting box (104) and is used to wind up the edge material of the lower release film.

7. A method for manufacturing an OCA optical adhesive, comprising using the OCA optical adhesive production equipment according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: The slitting mechanism (2) slits the OCA optical adhesive master roll and transports it backward on the support frame (1); S2: The first bonding mechanism (3) receives the cut OCA optical adhesive and delivers the lower release film to be bonded to the lower surface of the OCA optical adhesive to achieve the first bonding operation. After the first bonding operation is completed, the self-contained film of the OCA optical adhesive is rolled up in the first rolling component (4); S3: The first die-cutting mechanism (5) receives the OCA optical glue and the lower release film after the first lamination operation is completed, and performs the first die-cutting operation on the OCA optical glue and the lower release film according to the required size of the OCA optical glue product. After the first die-cutting operation is completed, the edge material of the OCA optical glue is rolled up by the second winding component (6), and the OCA optical glue continues to be transported backwards along with the lower release film; S4: the second laminating mechanism (7) receives the OCA optical adhesive and the lower release film after the first die-cutting operation, and laminates the upper release film onto the upper surface of the OCA optical adhesive to achieve a second laminating operation; S5: the second die-cutting mechanism (8) receives the OCA optical adhesive, the upper release film and the lower release film after the second lamination operation, and performs a second die-cutting operation on the upper release film according to the required size of the OCA optical adhesive product. After the second die-cutting operation is completed, the edge material of the upper release film is rolled up by the third winding component (9); S6: The collecting mechanism (10) receives the OCA optical adhesive, the upper release film and the lower release film after the second die-cutting operation, and separates the OCA optical adhesive, the upper release film and the lower release film after the two die-cutting operations from the lower release film edge material, so as to realize the collection of the OCA optical adhesive product.

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