Release force detection equipment for OCA (optical clear adhesive)

Abstract

The utility model relates to the technical field of optical cement detection, in particular to release force detection equipment for OCA optical cement, which comprises a base, a support frame arranged on the base, a pulling device and an adjusting device, the pulling device and the adjusting device are arranged on the base, a support plate is movably arranged on the base, the top of the support plate is arranged at the bottom of the adjusting device, and a lifting assembly is arranged on the base. According to the release force detection equipment for the OCA optical cement, the release film on the OCA optical cement is stripped through the arranged lifting assembly, and meanwhile, the synchronous displacement unit is driven to move, so that the release film on the OCA optical cement is separated from the release film on the OCA optical cement, and the OCA optical cement is separated from the release film on the OCA optical cement. At the moment, the supporting plate can be synchronously driven to move on the base, so that the supporting plate can drive the adjusting assembly to move, in the pulling process, the angle of the release film and the angle of the OCA optical cement are in a small-change state all the time, and therefore a certain error of a detection experiment can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of optical adhesive testing technology, specifically to a release force testing device for OCA optical adhesive. Background Technology

[0002] Release force testing equipment is a specialized device used to measure the adhesive force between OCA optical adhesive and release film. During the production process of OCA optical adhesive, a release film is usually applied to the surface of the optical adhesive to protect it from contamination or damage during transportation and storage.

[0003] Before use, OCA optical adhesive is tested to ensure its release force meets the standards. This is done using an OCA optical adhesive release force testing device. The OCA optical adhesive and release film are bonded together, and a drive mechanism is activated to pull the release film off the OCA optical adhesive, thus detecting the pulling data. Existing OCA optical adhesive release force testing devices typically have multi-angle peel detection capabilities, obtaining data by adjusting the peeling angle between the OCA optical adhesive and the release film.

[0004] However, in actual use, during the testing process, although the adsorption plate used to apply OCA optical adhesive is rotated and fixed, it cannot move synchronously with the lifting mechanism. At the same time, the angle between the release film and the OCA optical adhesive changes constantly during peeling, so the obtained test data has a certain error. To address this, we propose a release force testing device for OCA optical adhesive. Utility Model Content

[0005] One of the technical problems to be solved in this application is: how to design a release force testing device for OCA optical adhesive that can reduce certain errors.

[0006] To address the aforementioned technical problems, this application provides a release force testing device for OCA optical adhesive, comprising a base, a support frame mounted on the base, a pulling device and an adjusting device mounted on the base, and further comprising:

[0007] A support plate, which is movably mounted on the base and whose top is located at the bottom of the adjustment device;

[0008] A lifting assembly, which is mounted on a base, is used to drive a pulling device to lift and lower, thereby peeling off the release film on the OCA optical adhesive;

[0009] A synchronous displacement unit is installed on the base. During the movement of the lifting assembly, the synchronous displacement unit can synchronously drive the support plate to move. The support plate will drive the adjustment device to move, thereby keeping the angle between the release film on the pulling device and the OCA optical adhesive on the adjustment device constant.

[0010] In some embodiments, the base has a connecting groove inside, the lifting assembly includes a servo motor disposed on the inner wall of the connecting groove, the top of the base is provided with a connecting shell, the inner wall of the connecting shell is movably provided with a lead screw, and the end face of the lead screw is disposed on the output end of the servo motor.

[0011] In some embodiments, the outer surface of the lead screw is threadedly connected to a lifting block, the outer surface of the lifting block is movably disposed on the inner wall of the connecting shell, and the side of the lifting block is disposed on one side of the pulling device.

[0012] In some embodiments, the synchronous displacement unit includes a first bevel gear sleeved on the outer surface of the lead screw, connecting rods movably disposed on both sides of the inner wall of the connecting groove, and a second bevel gear sleeved on the outer surface of the connecting rod, wherein the second bevel gear and the first bevel gear mesh.

[0013] In some embodiments, a transmission wheel is sleeved on the outer surface of the connecting rod, and threaded rods are movably arranged on both sides of the inner wall of the connecting groove, with the threaded rods perpendicular to the connecting rod. A driven wheel is movably arranged on the outer surface of the threaded rod, and the inner wall of the driven wheel is threaded. The inner wall of the driven wheel is threaded to the outer surface of the threaded rod. A connecting ring is provided at both ends of the driven wheel, and a fixing plate is provided on the outer surface of both connecting rings. The side of the fixing plate is arranged on the inner wall of the connecting groove.

[0014] In some embodiments, a slider is movably provided on the inner wall of the connecting groove, the slider is internally threaded to the outer surface of the threaded rod, the top of the base is provided with a sliding groove communicating with the connecting groove, the top of the slider is provided with an L-shaped plate, and the side of the L-shaped plate is movably provided on the inner wall of the sliding groove.

[0015] In some embodiments, straight grooves are provided on both inner walls of the slide, and ball bearings are movably disposed inside both sides of the L-shaped plate, with the outer surfaces of the two ball bearings respectively movably disposed on the inner walls of the corresponding straight grooves.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. The release film on the OCA optical adhesive is peeled off by the lifting component, which drives the synchronous displacement unit to move. At the same time, the support plate moves on the base. The support plate drives the adjustment component to move, so that the pulling device and the adjustment device peel the release film off the OCA optical adhesive. During the pulling process, the angle between the release film and the OCA optical adhesive remains relatively small, which can reduce the error of the detection experiment.

[0018] 2. The gear ratios of the first bevel gear, the second bevel gear, the transmission wheel, and the driven wheel, which are set to transmit power inside the base, are all 1:1:1:1. This ensures that the lifting and displacement distances of the adjustment device and the pulling device are the same, allowing for more accurate data in the test when the release force is adjusted to 45 degrees. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded structural diagram of the base and lifting assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the lifting assembly and synchronous displacement unit of this utility model;

[0023] Figure 5 This is a partial structural schematic diagram of the synchronous displacement unit of this practical application;

[0024] Figure 6 This is an exploded structural diagram of the ball bearing and L-shaped plate in this practical application.

[0025] In the diagram: 1. Base; 2. Lifting assembly; 21. Connecting shell; 22. Lead screw; 23. Servo motor; 24. Lifting block; 3. Support plate; 4. Support frame; 5. Pulling device; 6. Adjusting device; 7. Connecting groove; 8. Slide groove; 9. Synchronous displacement unit; 91. First bevel gear; 92. Second bevel gear; 93. Transmission wheel; 94. Connecting rod; 95. Driven wheel; 96. Slider; 97. Threaded rod; 98. L-shaped plate; 99. Fixing plate; 910. Connecting ring; 10. Straight groove; 11. Ball bearing. Detailed Implementation

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

[0027] Example 1

[0028] Please see Figure 1-5 This utility model provides a technical solution:

[0029] A release force testing device for OCA optical adhesive includes a base 1, a support frame 4 mounted on the base 1, a pulling device 5 and an adjusting device 6 mounted on the base 1. The pulling device 5 is used to clamp the release film, the adjusting device is used to clamp the adsorption plate, and the OCA optical adhesive can be adhered to its side. The device also includes:

[0030] Support plate 3 is movably mounted on base 1, and its top is located at the bottom of adjustment device 6;

[0031] Lifting component 2 is mounted on base 1 and is used to drive the pulling device 5 to lift and lower, thereby peeling off the release film on OCA optical adhesive.

[0032] Synchronous displacement unit 9 is installed on the base 1. During the movement of the lifting component 2, the synchronous displacement unit 9 can synchronously drive the support plate 3 to move. The support plate 3 will drive the adjustment device 6 to move, so that the angle between the release film on the pulling device 5 and the OCA optical adhesive on the adjustment device 6 remains unchanged.

[0033] The base 1 has a connecting groove 7 inside. The lifting assembly 2 includes a servo motor 23 installed on the inner wall of the connecting groove 7. The top of the base 1 is provided with a connecting shell 21. A lead screw 22 is movably installed on the inner wall of the connecting shell 21. The end face of the lead screw 22 is located on the output end of the servo motor 23. The servo motor 23 allows the lifting to be varied.

[0034] The outer surface of the lead screw 22 is threaded with a lifting block 24. The outer surface of the lifting block 24 is movably disposed on the inner wall of the connecting shell 21. The side of the lifting block 24 is disposed on one side of the pulling device 5. The lifting block 24 can move on the lead screw 22, thereby driving the pulling device 5 to move.

[0035] The synchronous displacement unit 9 includes a first bevel gear 91 sleeved on the outer surface of the lead screw 22, a connecting rod 94 movably arranged on both sides of the inner wall of the connecting groove 7, a second bevel gear 92 sleeved on the outer surface of the connecting rod 94, the second bevel gear 92 meshing with the first bevel gear 91, the arrangement of the first bevel gear 91 and the second bevel gear 92 can convert the movement direction of the lead screw 22.

[0036] A transmission wheel 93 is fitted onto the outer surface of the connecting rod 94. Threaded rods 97 are movably arranged on both sides of the inner wall of the connecting groove 7, and the threaded rods 97 are perpendicular to the connecting rod 94. A driven wheel 95 is movably arranged on the outer surface of the threaded rod 97. The inner wall of the driven wheel 95 is threaded and threaded to the outer surface of the threaded rod 97. A connecting ring 910 is provided at both ends of the driven wheel 95. A fixing plate 99 is provided on the outer surface of both connecting rings 910. The side of the fixing plate 99 is provided on the inner wall of the connecting groove 7. The second bevel gear 92 can drive the transmission wheel 93 to move, and the transmission wheel 93 can drive the driven wheel 95 to rotate, which in turn can drive the threaded rod 97 with internal threads to rotate.

[0037] A slider 96 is movably mounted on the inner wall of the connecting groove 7. The internal thread of the slider 96 is connected to the outer surface of the threaded rod 97. A slide groove 8 communicating with the connecting groove 7 is opened on the top of the base 1. An L-shaped plate 98 is mounted on the top of the slider 96. The side of the L-shaped plate 98 is movably mounted on the inner wall of the slide groove 8. The slider 96 is driven to move by the rotation of the threaded rod 97. The L-shaped plate 98 can drive the support plate 3 to move, thereby synchronously displacing the adjusting device 6 and the pulling device 5.

[0038] When using this device, first, the release film is clamped onto the pulling device 5, and the adsorption plate of the attached OCA optical film is clamped onto the adjusting device 6 to adjust its detection angle. Then, the servo motor 23 is started to drive the lead screw 22 to rotate. The lead screw 22 drives the lifting block 24, which is threaded on its outer surface, to move up and down inside the connecting shell 21, simultaneously peeling the release film off the OCA optical film. This also drives the first bevel gear 91 to rotate, which in turn drives the second bevel gear 92, which meshes with it on its outer surface, to rotate. The second bevel gear 92 then drives the internally mounted connecting rod 94 to rotate. The connecting rod 94 drives the transmission wheel 93 sleeved on the outer surface to rotate. The transmission wheel 93 drives the driven wheel 95 meshing on the outer surface to rotate. Since the driven wheel 95 has a thread inside, it can drive the threaded rod 97 to rotate. At the same time, the threaded rod 97 will drive the slider 96 connected to the thread on the outer surface to rotate. The slider 96 drives the L-shaped plate 98 to slide inside the slide groove 8. The L-shaped plate 98 drives the support plate 3 set on the side to move. The support plate 3 will drive the adjustment device 6 to move, which can minimize the error of the increased angle between the release film and the OCA optical adhesive, thereby making the experimental image more stable.

[0039] Example 2

[0040] Please see Figure 6 This utility model provides a technical solution:

[0041] Unlike Embodiment 1, straight grooves 10 are provided on both inner walls of the slide groove 8, and ball bearings 11 are movably arranged inside both sides of the L-shaped plate 98. The outer surfaces of the two ball bearings 11 are respectively movably arranged on the inner walls of the corresponding straight grooves 10. The ball bearings 11 slide inside the corresponding straight grooves 10 and rotate on their own, which can reduce the friction of the L-shaped plate 98.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A release force testing device for OCA optical adhesive, comprising a base (1), a support frame (4) disposed on the base (1), a pulling device (5) disposed on the base (1), and an adjusting device (6), characterized in that: It also includes: Support plate (3), which is movably mounted on base (1) and whose top is located at the bottom of adjustment device (6); Lifting assembly (2), which is set on base (1) and is used to drive the pulling device (5) to lift and lower, thereby peeling off the release film on OCA optical adhesive; Synchronous displacement unit (9) is set on base (1) and is used to synchronously drive support plate (3) to move during the movement of lifting component (2). Support plate (3) will drive adjustment device (6) to move, so that the angle between release film on pulling device (5) and OCA optical adhesive on adjustment device (6) remains unchanged.

2. The release force testing device for OCA optical adhesive according to claim 1, characterized in that: The base (1) has a connecting groove (7) inside. The lifting assembly (2) includes a servo motor (23) installed on the inner wall of the connecting groove (7). The top of the base (1) is provided with a connecting shell (21). A lead screw (22) is movably installed on the inner wall of the connecting shell (21). The end face of the lead screw (22) is located on the output end of the servo motor (23).

3. The release force testing device for OCA optical adhesive according to claim 2, characterized in that: The outer surface of the lead screw (22) is threaded with a lifting block (24), the outer surface of the lifting block (24) is movably disposed on the inner wall of the connecting shell (21), and the side of the lifting block (24) is disposed on one side of the pulling device (5).

4. The release force testing device for OCA optical adhesive according to claim 3, characterized in that: The synchronous displacement unit (9) includes a first bevel gear (91) sleeved on the outer surface of the lead screw (22), and a connecting rod (94) movably arranged on both sides of the inner wall of the connecting groove (7). A second bevel gear (92) is sleeved on the outer surface of the connecting rod (94), and the second bevel gear (92) and the first bevel gear (91) mesh with each other.

5. The release force testing device for OCA optical adhesive according to claim 4, characterized in that: A transmission wheel (93) is sleeved on the outer surface of the connecting rod (94). Threaded rods (97) are movably arranged on both sides of the inner wall of the connecting groove (7), and the threaded rods (97) are perpendicular to the connecting rod (94). A driven wheel (95) is movably arranged on the outer surface of the threaded rod (97). The inner wall of the driven wheel (95) is threaded. The inner wall of the driven wheel (95) is threaded to the outer surface of the threaded rod (97). A connecting ring (910) is provided at both ends of the driven wheel (95). A fixing plate (99) is provided on the outer surface of both connecting rings (910). The side of the fixing plate (99) is provided on the inner wall of the connecting groove (7).

6. The release force testing device for OCA optical adhesive according to claim 5, characterized in that: The inner wall of the connecting groove (7) is movably provided with a slider (96), the internal thread of the slider (96) is connected to the outer surface of the threaded rod (97), the top of the base (1) is provided with a sliding groove (8) that communicates with the connecting groove (7), the top of the slider (96) is provided with an L-shaped plate (98), and the side of the L-shaped plate (98) is movably provided on the inner wall of the sliding groove (8).

7. The release force testing device for OCA optical adhesive according to claim 6, characterized in that: The inner walls of both sides of the slide (8) are provided with straight grooves (10), and the inner sides of both sides of the L-shaped plate (98) are provided with movably arranged balls (11), and the outer surfaces of the two balls (11) are respectively movably arranged on the inner walls of the corresponding straight grooves (10).

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