OCA (Optical Clear Adhesive) sheet taking and lamination preventing device of laminating machine

Abstract

The utility model provides a laminating machine OCA (Optical Clear Adhesive) sheet material taking anti-lamination device, which comprises an OCA material taking assembly and an OCA material placing mechanism, the OCA material taking assembly comprises a mechanical arm and a material taking suction cup assembly, the material taking suction cup assembly comprises a suction cup frame and a suction cup arranged on the suction cup frame, an optical fiber detection device is arranged on the suction cup frame, the OCA material placing mechanism comprises a rack, and the OCA material placing mechanism is arranged on the rack. The OCA discharging mechanism comprises a rack and a lifting mechanism arranged in the middle of the rack, the OCA discharging mechanism further comprises clamping blocks arranged on the periphery of the lifting mechanism, and blowing holes are formed in the sides, facing the lifting mechanism, of the clamping blocks and formed in the ends, away from the rack, of the clamping blocks. According to the laminating machine OCA sheet taking anti-lamination device, ionic wind is blown out of the air blowing holes, air is blown to the lamination phenomenon of the OCA sheets, lamination separation of the OCA sheets is achieved, equipment faults caused by the lamination phenomenon are prevented, the lamination phenomenon of the OCA sheets is secondarily detected through the optical fiber detection device, and the lamination quality of the OCA sheets is improved. And the probability of equipment failure caused by a lamination phenomenon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic screens, and particularly relates to an anti-overlapping device for OCA sheet material picking of a laminator. Background Art

[0002] OCA (Optically Clear Adhesive) optical glue is one of the raw materials of a touch screen. By making an optical acrylic pressure-sensitive adhesive into a substrate-free form and then attaching an optical release film to each of the upper and lower layers to form a double-sided adhesive tape, it is a double-sided adhesive tape without a matrix material, and has the advantages of high cleanliness, high light transmittance, low haze, high adhesion, no crystal points, no bubbles, water resistance, high temperature resistance, ultraviolet resistance, etc.; OCA optical glue can be applied to different fields according to different thicknesses, and its main uses are: electronic paper, bonding of transparent devices, assembly of projection screens, assembly of aerospace or military optical devices, assembly of displays, assembly of lenses, resistive touch screens G+F+F, F+F, capacitive touch screens, panels, ICONs, and bonding of plastics such as glass and polycarbonate for special adhesives for bonding transparent optical elements (such as lenses).

[0003] OCA optical glue die-cutting processing factories generally use optical glue die-cutting technology, optical glue product punching and nesting technology, and optical glue linear bubble position adjustment technology; by purchasing OCA optical glue raw materials, and then according to different full-lamination processes of different customers, carrying out OCA structure design, precision die-cutting processing or preliminary processing such as slitting and then selling to assembly factories of touch screens or display modules. However, during the process of mold assembly, the cut OCA needs to be placed in a specific device and enter an automated assembly program.

[0004] In the prior art, since the thickness of many single-piece OCA optical glue is only 0.2 mm, and the upper and lower layers are PET protective films, under the influence of surface tension and static electricity, electrostatic adsorption is likely to occur between the protective films of the OCA optical glue sheet material, resulting in OCA overlapping during feeding and being difficult to separate, leading to equipment failures. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an anti-overlapping device for OCA sheet material picking of a laminator, aiming to solve the technical problem that in the prior art, OCA sheet materials are stacked together, and due to the overlapping phenomenon during material picking, feeding errors occur, and finally the installed equipment fails.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: An anti-overlapping sheet device for OCA sheet material picking in a laminator, including an OCA picking component and an OCA discharging mechanism. The OCA picking component includes a robotic arm and a picking suction cup component connected to one end of the robotic arm. The picking suction cup component includes a suction cup frame and suction cups provided on the suction cup frame. A fiber optic detection device is provided on the suction cup frame. The OCA discharging mechanism includes a platform frame and a lifting mechanism provided in the middle of the platform frame. The OCA discharging mechanism further includes clamping blocks provided around the lifting mechanism. An air blowing hole is provided on one side of the clamping block facing the lifting mechanism, and the air blowing hole is provided at one end of the clamping block away from the platform frame.

[0007] Compared with the prior art, the beneficial effect of the utility model lies in that: by providing a blowing hole at the upper end of the clamping block on the OCA discharging mechanism, using ion wind to blow open the stacked OCA, and at the same time performing electrostatic treatment on the OCA. And in order to determine whether the OCA is surely blown open by the ion wind, a fiber optic detection device is installed on the picking suction cup component to detect whether the OCA overlapping phenomenon is eliminated by the ion wind, so as to avoid the OCA overlapping phenomenon from extending to the next procedure.

[0008] According to one aspect of the above technical solution, the platform frame includes an upper support plate and a lower bottom plate, and the upper support plate and the lower bottom plate are connected by support columns.

[0009] According to one aspect of the above technical solution, an OCA support table is provided at one end of the lifting mechanism close to the upper support plate.

[0010] According to one aspect of the above technical solution, the clamping block includes a fixed clamping block and a movable clamping block. The fixed clamping block is fixed on the platform frame, and the movable clamping block is fixed on the platform frame through a slide rail. The fixed clamping block and the movable clamping block enclose a space for storing OCA.

[0011] According to one aspect of the above technical solution, an air pipe matching the air blowing hole is provided on the clamping block.

[0012] According to one aspect of the above technical solution, a position sensor for cooperating with the lifting mechanism is provided on one side of the fixed clamping block, and the position sensor is close to the lower end of the air blowing hole.

[0013] According to one aspect of the above technical solution, the air blowing holes are arranged in a rectangular array.

[0014] According to one aspect of the above technical solution, the slide rail includes fixed rails respectively arranged in parallel on both sides of the OCA support table and a sliding part for fixedly supporting the movable clamping block. Both ends of the sliding part are slidably connected to the fixed rails. Description of the Drawings

[0015] Figure 1 This is a schematic structural diagram of the OCA feeding mechanism in an embodiment of the present utility model;

[0016] Figure 2 It is Figure 1 an enlarged schematic structural diagram of part A in

[0017] Figure 3 This is a schematic structural diagram of the OCA material taking assembly in an embodiment of the present utility model;

[0018] Main element symbol description: 1 - bench, 11 - upper support plate, 12 - lower bottom plate, 13 - support column, 2 - lifting mechanism, 21 - OCA support table, 3 - clamping block, 31 - fixed clamping block, 32 - movable clamping block, 33 - air blowing hole, 4 - suction cup holder, 5 - suction cup, 6 - optical fiber detection device, 7 - air pipe, 8 - position sensor, 9 - slide rail;

[0019] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific embodiments

[0020] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figures 1 to 3, shown is an anti - overlapping sheet device for OCA sheet material picking in the first embodiment of the present utility model, including an OCA picking component and an OCA discharging mechanism. The OCA picking component includes a robotic arm and a picking suction cup 5 assembly connected to one end of the robotic arm. The picking suction cup 5 assembly includes a suction cup frame 4 and suction cups 5 provided on the suction cup frame 4. A fiber optic detection device 6 is provided on the suction cup frame 4. The OCA discharging mechanism includes a bench 1 and a lifting mechanism 2 provided in the middle of the bench 1. The OCA discharging mechanism further includes clamping blocks 3 provided around the lifting mechanism 2. An air blowing hole 33 is provided on one side of the clamping block 3 facing the lifting mechanism 2. Among them, the air blowing holes 33 are arranged in a rectangular array, which is beneficial for the blown air to be parallel to the surface of the OCA sheet, so as to receive uniform force. The air blowing holes 33 are provided at one end of the clamping block 3 away from the bench 1. Specifically, in this embodiment, an air pipe 7 matching the air blowing holes 33 is provided on the clamping block 3.

[0024] Among them, the bench 1 includes an upper support plate 11 and a lower bottom plate 12. The upper support plate 11 and the lower bottom plate 12 are connected by support columns 13. The lifting mechanism 2 is fixed by a support rod of the lower bottom plate 12. An OCA support table 21 is provided at one end of the lifting mechanism 2 close to the upper support plate 11, so that the lifting mechanism 2 is exactly located in the space between the upper support plate 11 and the lower bottom plate 12.

[0025] Please refer to Figure 1 , in practical applications, for different touchscreens with different sizes, in order to store OCA sheets of various sizes, two types of clamping blocks 3 are provided on the upper support plate 11, which are divided into a fixed clamping block 31 and a movable clamping block 32. The movable clamping block 32 is fixed on the bench 1 through a slide rail 9. The fixed clamping block 31 and the movable clamping block 32 enclose a space for storing OCA sheets. By sliding the sliding part connected to the lower end of the movable clamping block 32, the size of the space enclosing the OCA sheet storage space is changed. It should be specifically noted that the slide rail includes fixed rails respectively arranged in parallel on both sides of the OCA support table 21 and a sliding part fixedly supporting the movable clamping block 32. The two ends of the sliding part are respectively slidably connected to the fixed rails.

[0026] In some application scenarios of this embodiment, before the robotic arm starts to prepare for loading, the OCA sheet is placed on the OCA support table 21, and the OCA sheet is fixed by the moving clamp 32 on the sliding rail 9. At this time, the robotic arm starts to work, and the robotic arm drives the suction cup 5 above the OCA sheet. At the same time, the lifting mechanism 2 pushes the OCA sheet upward. When the top layer of the OCA sheet triggers the position sensor 8 set on one side of the fixed clamp 31, the lifting mechanism 2 stops working, and at the same time, the ion blower is started, and the ion wind blows out from the air outlet hole 33 through the air pipe 7. When the suction cup 5 comes above the OCA sheet, the vacuum adsorption device of the suction cup 5 is started, and then the suction head of the suction cup 5 falls on the surface of the OCA sheet to suck the OCA sheet. Driven by the robotic arm, the OCA sheet moves upward. Since the OCA sheet is located at the lowermost end of the air outlet hole 33, when the OCA sheet is stacked, during the process of the OCA sheet moving from the lowermost end to the uppermost end of the air outlet hole 33, the ion wind can blow open the stacked OCA sheets. It should be noted that the position sensor 8 is located at the lower end of the air outlet hole 33, which ensures that the uppermost OCA sheet is always at the lower end of the air outlet hole 33, maximizing the blowing distance of the OCA sheet and increasing the probability of blowing open the stacked OCA sheets. At the same time, the fiber optic detection device 6 located on the suction cup holder 4 emits a signal of the stacked sheet phenomenon. Among them, the fiber optic detection device 6 detects the stacked sheet phenomenon through the principle of light emission. When stacking occurs, the received value exceeds the predicted value, and the device emits a signal. At this time, if the ion wind blows open the stacked OCA sheets, the detection signal of the fiber optic detection device 6 stops. Of course, if the OCA sheet passes through the air outlet hole 33 and the signal of the light detection device does not stop, it means that the stacking phenomenon still exists. Then the robotic arm stops moving, and at this time, manual separation is required to prevent the stacking phenomenon from extending to the next procedure. Of course, it is also possible to control the robotic arm to drive the OCA sheet to blow ion wind back and forth until the stacking phenomenon is eliminated. After exceeding a certain number of times, the movement of the robotic arm is notified again for manual separation of the stacked sheets.

[0027] It should be added that the ion wind can also remove the static electricity on the OCA sheet to prevent damage to other electronic devices caused by static electricity.

[0028] In summary, for an OCA sheet material taking and anti-stacking device in the above-mentioned embodiment of the present utility model, by setting air outlet holes in the clamps of the device and blowing ion wind through the air outlet holes, blowing the stacked OCA sheets to achieve separation of the stacked OCA sheets and prevent equipment failures caused by the stacking phenomenon. In order to prevent equipment failures caused by the failure of the ion wind to eliminate the stacking phenomenon of the OCA sheet, a fiber optic detection device is installed on the suction cup holder of the device to detect the stacking phenomenon of the OCA sheet through the fiber optic detection device for a second time, reducing the probability of equipment failures caused by the stacking phenomenon.

[0029] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An OCA sheet material taking and anti-overlapping device for a laminating machine, comprising an OCA material taking component and an OCA material discharging mechanism, wherein the OCA material taking component comprises a mechanical arm, characterized in that: The material picking suction cup assembly is connected to one end of the robot arm, and the material picking suction cup assembly includes a suction cup frame and a suction cup arranged on the suction cup frame, and the suction cup frame is provided with an optical fiber detection device. The OCA material discharge mechanism includes a stand and a lifting mechanism arranged in the middle of the stand, and the OCA material discharge mechanism also includes a clamping block arranged around the lifting mechanism, and the clamping block is provided with a blowing hole on the side facing the lifting mechanism, and the blowing hole is arranged at the end of the clamping block away from the stand.

2. The OCA sheet material taking and anti-overlapping device for the laminating machine according to claim 1 is characterized in that: The stand comprises an upper support plate and a lower base plate, and the upper support plate and the lower base plate are connected via support columns.

3. The OCA sheet material taking and anti-overlapping device for the laminating machine according to claim 2 is characterized in that: The lifting mechanism is provided with an OCA support platform at one end close to the upper supporting plate.

4. The OCA sheet material taking and anti-overlapping device for the laminating machine according to claim 3 is characterized in that: The clamp block includes a fixed clamp block and a movable clamp block, wherein the fixed clamp block is fixed on the platform, and the movable clamp block is fixed on the platform via a slide rail, and the fixed clamp block and the movable clamp block enclose a space for storing the OCA.

5. The OCA sheet material taking and anti-overlapping device for a laminating machine according to claim 1, characterized in that: The clamping block is provided with an air pipe matched with the blowing hole.

6. The OCA sheet material taking and anti-overlapping device for a laminating machine according to claim 4, characterized in that: A position sensor used in conjunction with the rising mechanism is provided on one side of the fixed clamp block, and the position sensor is close to the lower end of the blowing hole.

7. The OCA sheet material taking and anti-overlapping device for a laminating machine according to claim 1, characterized in that: The blowing holes are arranged in a rectangular array.

8. The OCA sheet material taking and anti-overlapping device for a laminating machine according to claim 4, characterized in that: The slide rail comprises fixed rails respectively arranged in parallel on both sides of the OCA support platform, and a sliding part fixedly supporting the movable clamping block, and two ends of the sliding part are respectively slidably connected with the two fixed rails.

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