Performance detection equipment for OCA (Optical Clear Adhesive) production

Abstract

The utility model discloses performance detection equipment for OCA (Optical Clear Adhesive) production, which comprises an equipment seat, a detection frame mounted in the middle of the top of the equipment seat, a detector mounted at the bottom end of the detection frame, slideway tables mounted at two ends of the top end of the equipment seat, and two L-shaped supports slidably connected to slideways. The inner side of the L-shaped support is rotationally connected with two belt wheels. The L-shaped support, the belt wheel and the conveying belt are designed, and the conveying belt is composed of the first belt and the second belts and is high in outside and low in inside, so that the OCA square sticking cloth is lapped at the top ends of the second belts on the two sides, the two sides of the OCA square sticking cloth are attached to the inner sides of the first belts, and the OCA square sticking cloth can be very stable in the conveying process; and meanwhile, the bottom of the square sticking cloth is suspended, the detection accuracy can be increased and decreased, and the problems that in the prior art, feeding and discharging are inconvenient for table body equipment detection, or a conveying belt is not stable enough are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of OCA optical adhesive detection, in particular to a performance detection device for OCA optical adhesive production. Background Technique

[0002] OCA optical adhesive is a special adhesive used for bonding transparent optical elements (such as lenses, etc.). It mainly makes optical acrylic adhesive into a substrate-free form, and laminates a release film on the outer layer to form a bonding tape without a substrate material. With the popularization of new applications such as consumer electronics, automotive electronics, and smart home, the demand for touch screen devices has rapidly expanded. In particular, the development of the flexible display industry has become a new growth driver for the industry. This has promoted the market demand for OCA (optical acrylic pressure-sensitive adhesive) optical adhesive. As a product form of the square-shaped optical adhesive patch, its production will also increase with the growth of market demand. For example, in the display modules and touch control modules of devices such as smart phones, tablet computers, and smart watches, the square-shaped optical adhesive patch may be used to bond the optical elements in the module to ensure the effective transmission of light and the clear display of images.

[0003] Currently, when making such square patches, it often needs to be first processed by die-cutting into larger block-shaped patches, and then a light transmission detection device is used to detect the light transmission performance of the patches. Finally, it is cut into smaller block-shaped pieces. However, the traditional detection method is to place the patch on the table of the device and then start the device for detection. For example, a light transmission detection device for optical adhesive disclosed in Application No. 202220177350.5 is this common table form. However, after actual investigation, it is found that this detection method has certain deficiencies. During detection, it is necessary to manually place the patch at a suitable detection position and then fix the position. Such positioning placement is very inconvenient. Secondly, it is also necessary to take it after placing and completing the detection, which is very inconvenient during batch detection, resulting in low overall efficiency. Therefore, some improved devices use a conveyor belt for transportation and detection. However, the traditional conveyor belt does not have good limiting measures and cannot limit OCA optical adhesive patches of different width specifications, resulting in poor stability. Moreover, the conveyor belt makes the light transmission of the patch poor, which easily affects the detection efficiency.

[0004] Therefore, the applicant proposes a performance detection device for OCA optical adhesive production to solve the above problems by designing an adjustable limiting transportation structure. Content of the Utility Model

[0005] The utility model provides a performance detection device for OCA optical adhesive production, which solves the problems that the feeding and discharging efficiency is not high when using a table for detection at present, and the stability cannot be guaranteed while improving the feeding and discharging efficiency when using a conveyor belt for transportation and detection.

[0006] To solve the above technical problems, a performance detection device for OCA optical adhesive production provided by the utility model includes a device base. A detection frame is installed at the middle position of the top of the device base, and a detector is installed at the bottom end of the detection frame. Slideway platforms are installed at both ends of the top of the device base. Two L-shaped brackets are slidably connected on the slideways. Two belt pulleys are rotatably connected inside the L-shaped brackets. A conveyor belt passing through the detection frame is wound around the two belt pulleys. The conveyor belt includes a first belt and a second belt. Both the first belt and the second belt are wound around the two belt pulleys. The sides of the first belt and the second belt are butt-jointed to each other, and the thickness of the first belt is greater than that of the second belt. An adjustment part is installed between the inner side of the detection frame and the L-shaped brackets, and the adjustment part is used to adjust the distance between the two L-shaped brackets.

[0007] Preferably, the adjustment part includes a bidirectional screw rod rotatably connected inside the detection frame. The thread directions at both ends of the bidirectional screw rod are opposite and two driving blocks are threadedly connected thereto. The two driving blocks are respectively fixed at the bottoms of the two L-shaped brackets. A handle for driving the bidirectional screw rod to rotate is installed on one side of the detection frame.

[0008] Preferably, two sliders with a “convex” shape are fixed at the bottom of the L-shaped brackets, and the sliders slide in the two slideway platforms.

[0009] Preferably, spline shafts are installed on the side walls of the two belt pulleys on one L-shaped bracket, and spline sleeves are provided on the side walls of the two belt pulleys on the other L-shaped bracket. Corresponding spline grooves are provided at the belt pulleys at the spline sleeves. The spline shafts pass through the spline sleeves and are inserted into the spline grooves, and at this time, the spline shafts form meshing with the spline sleeves and the spline grooves. A motor is installed on the outer wall of one L-shaped bracket, and the motor is connected to the rotating shaft of one belt pulley.

[0010] Preferably, limit ring blocks are installed on the outer walls at both ends of the belt pulley, and the side walls of the limit ring blocks are aligned with both sides of the belt pulley.

[0011] Preferably, an inclined discharge plate is installed on the side wall of one slideway platform, and protective plates are installed on both sides of the top of the discharge plate.

[0012] Preferably, a slot is fixed on one side of the detection frame, and a spraying machine is inserted into the slot and fixed with bolts.

[0013] Compared with the related technology, a performance detection device for OCA optical adhesive production provided by the utility model has the following beneficial effects:

[0014] 1. The utility model designs an L-shaped bracket, a pulley and a conveyor belt. Since the conveyor belt is composed of a first belt and a second belt with a design of higher outside and lower inside, the square patch of OCA optical glue is placed on the tops of the two second belts on both sides, and the two sides of the square patch of OCA optical glue are attached to the inner sides of the first belt. Then, during transportation, it can be very stable and will not shift. At the same time, the bottom of the square patch is suspended, which can increase or decrease the detection accuracy, effectively solving the problems of inconvenient loading and unloading during detection or unstable use of the conveyor belt.

[0015] 2. The utility model designs an adjusting part. When adjusting patches of different specifications, the handle can be rotated to make the bidirectional lead screw rotate, and the driving block can drive the two L-shaped brackets to displace, either closer or farther away. Then, within a certain range, patches of different specifications can be placed. The slider can make the displacement of the L-shaped bracket very stable. And when the L-shaped bracket displaces, the spline shaft will also move horizontally inside the spline sleeve and the spline groove, and then it will not affect the synchronism of the two pulleys on both sides, enhancing the adjustability and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of the whole of the utility model Figure 1 ;

[0017] Figure 2 is a schematic three-dimensional structure diagram of the whole of the utility model Figure 2 ;

[0018] Figure 3 is a schematic partial three-dimensional structure diagram of the utility model;

[0019] Figure 4 is a schematic three-dimensional structure diagram of the conveyor belt of the utility model;

[0020] Figure 5 is a schematic connection structure diagram of the spline shaft, the spline sleeve and the spline groove of the utility model.

[0021] Reference numerals in the drawings: 1, equipment base; 2, slideway; 3, detection rack; 4, L-shaped bracket; 5, pulley; 6, conveyor belt; 61, first belt; 62, second belt; 7, detector; 8, adjusting part; 81, bidirectional lead screw; 82, driving block; 83, handle; 9, slider; 10, discharge plate; 11, protective plate; 12, limiting ring block; 13, spline shaft; 14, spline sleeve; 15, spline groove; 16, motor; 17, slot; 18, spraying machine. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As shown by Figures 1-5 The present utility model provides a performance detection device for OCA optical adhesive production, including a device base 1. A detection frame 3 is installed at the middle position of the top of the device base 1. A detector 7 is installed at the bottom end of the detection frame 3. Slideway platforms 2 are installed at both ends of the top of the device base 1. Two L-shaped brackets 4 are slidably connected to the slideways 2. Two belt pulleys 5 are rotatably connected to the inner sides of the L-shaped brackets 4. A conveyor belt 6 passing through the detection frame 3 is wound around the two belt pulleys 5. The conveyor belt 6 includes a first belt 61 and a second belt 62. Both the first belt 61 and the second belt 62 are wound around the two belt pulleys 5. The sides of the first belt 61 and the second belt 62 are butted against each other, and the thickness of the first belt 61 is greater than the thickness of the second belt 62. An adjustment part 8 is installed between the inner side of the detection frame 3 and the L-shaped brackets 4. The adjustment part 8 is used to adjust the distance between the two L-shaped brackets 4.

[0024] By designing the L-shaped brackets 4, the belt pulleys 5 and the conveyor belt 6, during detection, the staff places the square patch of the OCA optical adhesive to be detected on the two conveyor belts 6. Since the conveyor belt 6 is designed with an outer high and inner low structure composed of the first belt 61 and the second belt 62, the square patch of the OCA optical adhesive is placed on the tops of the two second belts 62 on both sides, and the two sides of the square patch of the OCA optical adhesive are in contact with the inner sides of the first belt 61. Then, during transportation, it can be very stable and will not shift. Next, all the belt pulleys 5 are driven to rotate, so that the conveyor belt 6 conveys the patch. Finally, the patch is transported to directly below the detection frame 3 and detected by the detector 7. After detection, it is continuously transported to the other end for collection, thus completing automatic loading and unloading, improving work efficiency. At the same time, the bottom of the square patch is suspended, which can improve the detection accuracy. The adjustment part 8 can adjust the distance between the two L-shaped brackets 4, and thus can be applicable to the detection of patches of different specifications, improving applicability. It should be noted that although the patch itself is not a hard object, it still has a certain hardness. Therefore, its two ends are placed on the conveyor belt 6 and the middle will not sag.

[0025] On the side walls of two pulleys 5 on an L-shaped bracket 4, spline shafts 13 are installed. On the side walls of two pulleys 5 on another L-shaped bracket 4, spline sleeves 14 are provided. And corresponding spline grooves 15 are provided at the spline sleeves 14 of the pulley 5. The spline shaft 13 passes through the spline sleeve 14 and is inserted into the spline groove 15. And at this time, the spline shaft 13 meshes with the spline sleeve 14 and the spline groove 15. On the outer wall of one L-shaped bracket 4, a motor 16 is installed, and the motor 16 is connected to the rotating shaft of one pulley 5.

[0026] Through the engagement of the pulley 5 on one L-shaped bracket 4 with the spline sleeve 14 and the spline groove 15 of the pulley 5 on another L-shaped bracket 4 by means of the spline shaft 13, the synchronous rotation of the two pulleys 5 on both sides is realized. Then during transportation, when the motor 16 is started to drive one pulley 5 to rotate, all the pulleys 5 can rotate synchronously for transportation. This design ensures that the two pulleys 5 on both sides of the conveyor belt 6 can remain synchronous during operation and prevents deviation.

[0027] The adjusting part 8 includes a bidirectional lead screw 81 rotatably connected to the inside of the detection frame 3. The two ends of the bidirectional lead screw 81 have opposite thread directions and are threadedly connected with two driving blocks 82. The two driving blocks 82 are respectively fixed to the bottoms of the two L-shaped brackets 4. On one side of the detection frame 3, a handle 83 for driving the bidirectional lead screw 81 to rotate is installed. At the bottom of the L-shaped bracket 4, two sliders 9 with a “convex” shape are fixed, and the sliders 9 slide in the two slideway platforms 2.

[0028] As described above, by designing the adjusting part 8, when adjusting for different specifications of patches, the handle 83 can be rotated to make the bidirectional lead screw 81 rotate, and the driving blocks 82 can drive the two L-shaped brackets 4 to move, either closer or farther away. Then, patches of different specifications can be placed within a certain range. And the sliders 9 can make the displacement of the L-shaped bracket 4 very stable. And when the L-shaped bracket 4 displaces, the spline shaft 13 will also horizontally move inside the spline sleeve 14 and the spline groove 15, and thus will not affect the synchronism of the two pulleys 5 on both sides. It should be noted that when the distance between the two L-shaped brackets 4 is the largest, the spline shaft 13 is still inside the spline sleeve 14, and the connection relationship between the two pulleys 5 on both sides will not be lost.

[0029] On the outer walls at both ends of the pulley 5, limit ring blocks 12 are installed, and the side walls of the limit ring blocks 12 are aligned with both sides of the pulley 5.

[0030] As described above, the limit ring blocks 12 installed at both ends of the pulley 5 can prevent the conveyor belt 6 from slipping off the pulley 5 during operation, enhancing the stability and safety of the equipment.

[0031] On the side wall of one slideway platform 2, an inclined discharge plate 10 is installed, and protective plates 11 are installed on both sides at the top of the discharge plate 10.

[0032] As described above, the inspected sample will fall onto the inclined discharge plate 10 installed on one side of the slideway table 2 during transportation. At this time, the discharge plate 10 can be used to collect the inspected optical adhesive patch, and the protection plate 11 can prevent it from falling, which is very practical.

[0033] A slot 17 is fixed on one side of the inspection rack 3, and a spraying machine 18 is inserted into the slot 17 and fixed with bolts.

[0034] As described above, by installing the spraying machine 18 on the slot 17, when unqualified is detected, when the sample is transported under the spraying machine 18 after passing the inspection, the spraying machine 18 is started to spray colored paint for marking, which is very convenient for subsequent screening of unqualified products.

[0035] Working principle: When performing inspection, turn the handle 83 to make the bidirectional lead screw 81 rotate, and the driving block 82 can drive the two L-shaped brackets 4 to move, either closer or farther away. Thus, patches of different specifications can be placed within a certain range. Then, the staff places the square OCA optical adhesive patch to be inspected on the two conveyor belts 6. The square OCA optical adhesive patch is placed on the top of the second belt 62 on both sides, and the two sides of the square OCA optical adhesive patch are in contact with the inner side of the first belt 61. Then, the motor 16 is started to drive a pulley 5 to rotate. Through the spline shaft 13 meshing with the spline sleeve 14 and spline groove 15 of the pulley 5 on another L-shaped bracket 4, all the pulleys 5 can rotate synchronously, causing the conveyor belt 6 to operate for transportation. The sample first passes through the detector 7 under the inspection rack 3, and at this time, the transportation stops for inspection. After inspection, it is transported to the spraying machine 18. When it is qualified, it is directly transported to the discharge plate 10 and slides down for collection without stopping. When it is unqualified, it stops briefly and the spraying machine 18 is started to spray colored paint for marking, which is convenient for subsequent screening of unqualified products. It should be noted that the detailed working principles of the spraying machine 18 and the detector 7 are existing design means, so they are not described in detail in this article.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0037] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for OCA optical adhesive production, comprising a device base (1), a testing frame (3) installed at the middle of the top of the device base (1), and a detector (7) installed at the bottom of the testing frame (3), characterized in that: Slideways (2) are installed at both ends of the top of the equipment seat (1), and two L-shaped brackets (4) are slidably connected to the slideways (2). Two pulleys (5) are rotatably connected to the inner side of the L-shaped brackets (4), and conveyor belts (6) passing through the detection frame (3) are wound around the two pulleys (5); The conveyor belt (6) comprises a first belt (61) and a second belt (62), wherein the first belt (61) and the second belt (62) are both wound around two pulleys (5), the first belt (61) and the second belt (62) are butted against each other at their sides, and the thickness of the first belt (61) is greater than the thickness of the second belt (62); An adjusting portion (8) is installed on the inner side of the detection frame (3) and the L-shaped bracket (4), and the adjusting portion (8) is used to adjust the distance between the two L-shaped brackets (4).

2. The performance testing equipment for OCA optical adhesive production according to claim 1, characterized in that: The adjusting portion (8) comprises a bidirectional screw (81) rotatably connected to the inner side of the detection frame (3), the two ends of the bidirectional screw (81) having threads in opposite directions and being threadedly connected to two drive blocks (82), the two drive blocks (82) being respectively fixed to the bottom of the two L-shaped brackets (4), and a handle (83) for driving the bidirectional screw (81) to rotate is mounted on one side of the detection frame (3).

3. The performance testing equipment for OCA optical adhesive production according to claim 1, characterized in that: Two sliders (9) with a "convex" appearance are fixed to the bottom of the L-shaped bracket (4), and the sliders (9) slide in the two slideways (2).

4. The performance testing equipment for OCA optical adhesive production according to claim 3, characterized in that: The side walls of the two pulleys (5) on one L-shaped bracket (4) are both mounted with a spline shaft (13); the side walls of the two pulleys (5) on the other L-shaped bracket (4) are both mounted with a spline sleeve (14); the pulley (5) is provided with a corresponding spline groove (15) at the spline sleeve (14); the spline shaft (13) passes through the spline sleeve (14) and is inserted into the spline groove (15); at this time, the spline shaft (13) is meshed with the spline sleeve (14) and the spline groove (15); a motor (16) is mounted on the outer wall of the L-shaped bracket (4); and the motor (16) is connected to the rotating shaft of one pulley (5).

5. The performance testing equipment for OCA optical adhesive production according to claim 1, characterized in that: Limiting ring blocks (12) are installed on the outer walls at both ends of the pulley (5), and the side walls of the limiting ring blocks (12) are aligned with the two sides of the pulley (5).

6. The performance testing equipment for OCA optical adhesive production according to claim 1, characterized in that: An inclined discharge plate (10) is installed on the side wall of one of the slideways (2), and protective plates (11) are installed on both sides of the top of the discharge plate (10).

7. The performance testing equipment for OCA optical adhesive production according to claim 1, characterized in that: A slot (17) is fixed on one side of the detection frame (3), and a sprayer (18) is inserted into the slot (17) and fixed using bolts.

Images