Laminating mechanism for OCA optical cement processing

Abstract

The utility model relates to a laminating mechanism for OCA optical cement processing, which comprises a surface mounting frame, a conveyer belt and a limit rod, and also comprises a side edge contact assembly, a transmission assembly, a synchronous belt and a heating assembly, the conveyer belt is installed on the bottom surface in the surface mounting frame, the limit rod is rotatably installed between the inner walls of the surface mounting frame, the limit rod is located above the conveyer belt, and the side edge contact assembly is connected with the transmission assembly. The limiting rod is installed from one end to the center in the chip mounting frame, the side edge contact assemblies are installed on the bottom face in the chip mounting frame and symmetrically located on the two sides of the conveying belt, the transmission assembly is installed on the inner wall of the chip mounting frame, and the transmission assembly is connected with the side edge contact assembly in the middle. According to the utility model, the transmission assembly and the heating assembly are arranged, the optical film is directly heated, and the optical film is immediately attached to the touch screen after being heated, so that the problems that the attaching effect of the cooled optical film and the touch screen is poor, and more energy is consumed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of OCA optical adhesive bonding, in particular to a bonding mechanism for OCA optical adhesive processing. Background Art

[0002] OCA optical adhesive is an adhesive with excellent optical transparency, mainly used in electronic displays and optical products. When attaching a touch screen to a mobile phone, OCA is needed.

[0003] When using OCA optical glue to bond the touch screen to the mobile phone, a bonding device dedicated to OCA optical glue bonding is required.

[0004] At present, in order to ensure the bonding performance and uniformity of the adhesive layer during bonding, a heating plate or a heating roller needs to be installed in the bonding device to heat the OCA optical film. For example, a bonding mechanism of an OCA optical adhesive with Chinese patent authorization announcement number CN220390361U heats the optical film by an installed heating plate, which helps to avoid bubbles between the optical film and the touch screen and mobile phone, thereby improving the bonding.

[0005] However, in actual use, it was found that when the optical film is placed in the box, since the installed heating plate is not in direct contact with the optical film, the radiation heating method requires a longer heating time when heating the optical film to an appropriate temperature, and there is still a distance between the optical film being heated and the film being bonded to the touch screen. During this process, the temperature of the optical film will decrease, thereby affecting the subsequent bonding effect.

[0006] Therefore, in view of the above problems, it is necessary for the applicant to design a bonding mechanism for OCA optical adhesive processing to solve the problem. Utility Model Content

[0007] The purpose of the utility model is to provide a bonding mechanism for OCA optical adhesive processing, which directly heats the optical film and immediately bonds the optical film to the touch screen after heating, so as to solve the problem mentioned in the above background technology that there is still a distance between the optical film being heated and being bonded to the touch screen, and the temperature of the optical film will decrease during this process, thereby affecting the subsequent bonding effect.

[0008] To solve the above technical problems, the utility model provides a laminating mechanism for OCA optical adhesive processing, which includes a patch frame, a conveyor belt and a limiting rod, and also includes a side contact component, a transmission component, a synchronous belt and a heating component. The conveyor belt is installed on the inner bottom surface of the patch frame. The limiting rod is rotatably installed between the inner walls of the patch frame and is located above the conveyor belt. The limiting rod is installed from one end to the center inside the patch frame. The side contact component is installed on the inner bottom surface of the patch frame and is symmetrically located on both sides of the conveyor belt. The synchronous belt is connected between adjacent limiting rods. The transmission component is installed on the inner wall of the patch frame and is connected to the side contact component at the middle position. The heating component is installed on the inner top surface of the patch frame and is connected to the transmission component. A limiting frame is installed on the top of the patch frame, and a film roll is rotatably installed inside the limiting frame. An inclined groove is formed on the top of the patch frame.

[0009] Preferably, the side contact component includes a laminating frame and rubber columns. The laminating frame is installed on the inner bottom surface of the patch frame, and the rubber columns are vertically distributed and rotatably installed on the laminating frame.

[0010] Preferably, the side contact component at the middle position further includes a rotational speed sensor, a PLC and a circuit controller. The rotational speed sensor is installed on the surface of the laminating frame. The PLC and the circuit controller are both installed on the surface of the laminating frame, and the PLC is electrically connected to the rotational speed sensor and the circuit controller respectively. The circuit controller is electrically connected to the heating component.

[0011] Preferably, the transmission component includes a synchronous rod, a bracket, a first bevel gear, a second bevel gear, a driving wheel, a limiting shaft and a belt. The bracket is attached to the inner wall of the patch frame. The synchronous rod is rotatably installed between the brackets, and the bottom of the synchronous rod is coaxially connected to the rubber column. The first bevel gear is installed on the top of the synchronous rod. The limiting shaft is rotatably installed on the inner wall of the patch frame. The second bevel gear is sleeved and fixed at the end of the limiting shaft, and the second bevel gear meshes with the first bevel gear. The driving wheel is installed on the outer periphery of the limiting shaft. The belt is connected between the heating component and the driving wheel.

[0012] Preferably, the heating component includes a top frame, a through rod, a pressing roller, a transmission disc and a heating rod. The top frame is installed on the inner top surface of the patch frame. The through rod is installed between the side walls of the patch frame and penetrates through the top frame. A notch is formed on one side of the top frame. The pressing roller is rotatably installed between the inner walls of the top frame and is arranged outside the through rod. The transmission disc is arranged in the notch and is coaxially driven with the pressing roller. The heating rod is installed on the outer periphery of the through rod.

[0013] Preferably, a heat conducting disc is sleeved on the outer periphery of the heating rod, and the heat conducting discs are distributed at equal intervals.

[0014] Preferably, the diameter of the driving wheel is equal to the diameter of the rubber column, and the diameter of the extrusion roller is equal to the diameter of the transmission disc.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. By providing a transmission component and a heating component, when the end of the touch screen moves below the heating component, the heating component can be automatically started, enabling the optical film to be heated while the touch screen is moving. This not only directly heats the optical film but also immediately adheres the optical film to the touch screen after heating, avoiding poor adhesion between the optical film and the touch screen after cooling. It has the effects of shortening the heating time and ensuring the adhesion quality.

[0017] 2. By providing a side contact component and a transmission component, during use, the rotation speed sensor can detect the moving speed of the touch screen and adjust the heating power of the heating rod in a timely manner according to the moving speed of the touch screen, avoiding the heating power being too low to heat the optical film to a suitable temperature when the moving speed is too fast. This can fully ensure the subsequent adhesion effect of the optical film and is beneficial for energy conservation and emission reduction.

[0018] 3. By providing a conveyor belt, a side contact component, and a limiting rod, the touch screen moving on the conveyor belt can be limited, enabling the touch screen to accurately pass below the heating component, so as to precisely adhere the optical film to the surface of the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 is a schematic diagram of the overall structure of the preferred embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of the structure of the transmission component and the heating component of the preferred embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of the structure of the side contact component and the transmission component of the preferred embodiment of the present utility model;

[0023] Figure 4 is an exploded view of the heating component of the preferred embodiment of the present utility model.

[0024] In the figure: 1. Patch frame; 2. Conveyor belt; 3. Limit rod; 4. Side contact assembly; 41. Fitting frame; 42. Rubber column; 43. Rotation speed sensor; 44. PLC; 45. Circuit controller; 5. Transmission assembly; 51. Synchronous rod; 52. Bracket; 53. First bevel gear; 54. Second bevel gear; 55. Driving wheel; 56. Limit shaft; 57. Belt; 6. Synchronous belt; 7. Heating assembly; 71. Top frame; 72. Through rod; 73. Extrusion roller; 74. Transmission disc; 75. Heating rod; 76. Heat conduction disc; 8. Limit frame; 9. Film roll; 10. Inclined groove. Detailed implementation manners

[0025] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] As Figures 1-4 shown, a fitting mechanism for OCA optical adhesive processing provided by the present utility model includes a patch frame 1, a conveyor belt 2 and a limit rod 3, and also includes a side contact assembly 4, a transmission assembly 5, a synchronous belt 6 and a heating assembly 7. The conveyor belt 2 is installed on the inner bottom surface of the patch frame 1, the limit rod 3 is rotatably installed between the inner walls of the patch frame 1, and the limit rod 3 is located above the conveyor belt 2. The limit rod 3 is installed from one end to the center inside the patch frame 1. The side contact assembly 4 is installed on the inner bottom surface of the patch frame 1, and the side contact assembly 4 is symmetrically located on both sides of the conveyor belt 2. The transmission assembly 5 is installed on the inner wall of the patch frame 1, and the transmission assembly 5 is connected to the side contact assembly 4 at the middle position. The synchronous belt 6 is connected between adjacent limit rods 3. The heating assembly 7 is installed on the inner top surface of the patch frame 1, and the heating assembly 7 is connected to the transmission assembly 5. A limit frame 8 is installed on the top of the patch frame 1, and a film roll 9 is rotatably installed inside the limit frame 8. An inclined groove 10 is formed on the top of the patch frame 1. The optical film on the film roll 9 passes through the inclined groove 10 and overlaps on the heating assembly 7, and the end extends to the bottom of the heating assembly 7. After the heating assembly 7 is started, it can pull the optical film, so that the optical film is immediately heated and attached to the surface of the lower touch screen.

[0027] Referring to Figure 3 , the side contact assembly 4 includes a fitting frame 41 and a rubber column 42. The fitting frame 41 is installed on the inner bottom surface of the patch frame 1. The rubber columns 42 are vertically distributed and rotatably installed on the fitting frame 41. When the touch screen moves on the conveyor belt 2, the edge of the touch screen contacts the rubber columns 42, and the rubber columns 42 rotate as the touch screen moves.

[0028] Referring to Figure 3, the side contact component 4 located in the middle position further includes a rotational speed sensor 43, a PLC 44, and a circuit controller 45. The rotational speed sensor 43 is installed on the surface of the fitting frame 41, and both the PLC 44 and the circuit controller 45 are installed on the surface of the fitting frame 41. Moreover, the PLC 44 is electrically connected to the rotational speed sensor 43 and the circuit controller 45 respectively, and the circuit controller 45 is electrically connected to the heating component 7. The circuit controller 45 is used to adjust the working power of the heating rod 75.

[0029] Referring to Figure 2 and Figure 3 , the transmission component 5 includes a synchronous rod 51, a bracket 52, a first bevel gear 53, a second bevel gear 54, a driving wheel 55, a limiting shaft 56, and a belt 57. The bracket 52 is attached to the inner wall of the patch frame 1. The synchronous rod 51 is rotatably installed between the brackets 52, and the bottom of the synchronous rod 51 is coaxially connected to the rubber column 42. The first bevel gear 53 is installed on the top of the synchronous rod 51. The limiting shaft 56 is rotatably installed on the inner wall of the patch frame 1. The second bevel gear 54 is sleeved and fixed at the end of the limiting shaft 56, and the second bevel gear 54 meshes with the first bevel gear 53. The driving wheel 55 is installed on the outer periphery of the limiting shaft 56. The belt 57 is connected between the heating component 7 and the driving wheel 55. When the synchronous rod 51 rotates with the rubber column 42, it drives the first bevel gear 53 to rotate coaxially. The first bevel gear 53 drives the driving wheel 55 to rotate through the second bevel gear 54, so that the driving wheel 55 drives the heating component 7 to rotate through the belt 57 to traction the optical film.

[0030] Referring to Figure 4 , the heating component 7 includes a top frame 71, a through rod 72, a pressing roller 73, a transmission disc 74, and a heating rod 75. The top frame 71 is installed on the inner top surface of the patch frame 1. The through rod 72 is installed between the side walls of the patch frame 1, and the through rod 72 penetrates through the top frame 71. There is a notch on one side of the top frame 71. The pressing roller 73 is rotatably installed between the inner walls of the top frame 71, and the pressing roller 73 is arranged outside the through rod 72. The transmission disc 74 is arranged in the notch, and the transmission disc 74 is coaxially driven with the pressing roller 73. The heating rod 75 is installed on the outer periphery of the through rod 72, and the heating rod 75 does not rotate when the pressing roller 73 rotates on its axis.

[0031] Referring to Figure 4 , a heat conduction disc 76 is sleeved on the outer periphery of the heating rod 75, and the heat conduction discs 76 are evenly distributed. Through the heat conduction discs 76, the heat dissipation of the heating rod 75 can be accelerated, so that the pressing roller 73 can be quickly heated up.

[0032] Referring to Figure 2 , the diameter of the driving wheel 55 is equal to the diameter of the rubber column 42, and the diameter of the pressing roller 73 is equal to the diameter of the transmission disc 74. Through the limitation of the above diameters, it can be ensured that the rotation speed of the pressing roller 73 is consistent with the traction speed of the optical film.

[0033] Working principle: The touch screen is placed on the surface of the conveyor belt 2, and the top of the touch screen contacts the limiting rod 3. As the conveyor belt 2 starts, the conveyor belt 2 drives the touch screen to move under the heating component 7. Both sides of the touch screen are in close contact with the side contact components 4. As the touch screen moves, it drives the rubber column 42 to rotate. When the end of the touch screen moves and drives the side contact component 4 at the middle position to rotate, the rubber column 42 drives the rotation speed sensor 43 to rotate. The rotation speed sensor 43 feeds back the rotation speed to the PLC 44. The PLC 44 calculates the moving speed of the touch screen, and then adjusts the power supply of the heating rod 75 through the circuit controller 45. Moreover, at this time, the rubber column 42 drives the synchronous rod 51 and the first bevel gear 53 at the end to rotate. The first bevel gear 53 drives the driving wheel 55 to rotate through the second bevel gear 54. The driving wheel 55 drives the transmission disk 74 to rotate through the belt 57, so that the pressing roller 73 rotates. The optical film extending between the bottom of the pressing roller 73 and the surface of the touch screen is closely attached to the surface of the touch screen after being heated by the heating rod 75 and is compacted by the pressing roller 73.

[0034] Enlightened by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bonding mechanism for OCA optical adhesive processing, comprising a bonding frame (1), a conveyor belt (2) and a limit rod (3), characterized in that: The invention also comprises a side contact component (4), a transmission component (5), a synchronous belt (6) and a heating component (7); the conveyor belt (2) is mounted on the inner bottom surface of the patch frame (1); the limit rod (3) is rotatably mounted between the inner walls of the patch frame (1), and the limit rod (3) is located above the conveyor belt (2); the limit rod (3) is mounted from one end to the center of the patch frame (1); the side contact component (4) is mounted on the inner bottom surface of the patch frame (1), and the side contact components (4) are symmetrically located on both sides of the conveyor belt (2). The transmission assembly (5) is mounted on the inner wall of the patch frame (1), and the transmission assembly (5) is connected to the side contact assembly (4) at the middle position. The synchronous belt (6) is connected between adjacent limit rods (3). The heating assembly (7) is mounted on the top surface of the inside of the patch frame (1), and the heating assembly (7) is connected to the transmission assembly (5). A limit frame (8) is mounted on the top of the patch frame (1), and a film roll (9) is rotatably mounted inside the limit frame (8). The top of the patch frame (1) is structured with an inclined groove (10).

2. The bonding mechanism for OCA optical adhesive processing as claimed in claim 1, characterized in that: The side contact assembly (4) comprises a fitting frame (41) and a rubber column (42); the fitting frame (41) is mounted on the inner bottom surface of the patch frame (1); and the rubber column (42) is vertically distributed and rotatably mounted on the fitting frame (41).

3. The bonding mechanism for OCA optical adhesive processing as claimed in claim 2, characterized in that: The side contact assembly (4) located in the middle position further comprises a rotation speed sensor (43), a PLC (44) and a circuit controller (45); the rotation speed sensor (43) is mounted on the surface of the bonding frame (41); the PLC (44) and the circuit controller (45) are both mounted on the surface of the bonding frame (41); the PLC (44) is electrically connected to the rotation speed sensor (43) and the circuit controller (45), respectively; and the circuit controller (45) is electrically connected to the heating assembly (7).

4. The bonding mechanism for OCA optical adhesive processing as claimed in claim 3, characterized in that: The transmission assembly (5) comprises a synchronization rod (51), a bracket (52), a first bevel gear (53), a second bevel gear (54), a driving wheel (55), a limiting shaft (56) and a belt (57); the bracket (52) is attached to the inner wall of the patch frame (1); the synchronization rod (51) is rotatably mounted between the brackets (52); the bottom of the synchronization rod (51) is coaxially connected to the rubber column (42); the first bevel gear (53) is mounted on the top of the synchronization rod (51); the limiting shaft (56) is rotatably mounted on the inner wall of the patch frame (1); the second bevel gear (54) is sleeved and fixed on the end of the limiting shaft (56); the second bevel gear (54) is meshed with the first bevel gear (53); the driving wheel (55) is mounted on the outer periphery of the limiting shaft (56); and the belt (57) is connected between the heating assembly (7) and the driving wheel (55).

5. The bonding mechanism for OCA optical adhesive processing as claimed in claim 4, characterized in that: The heating assembly (7) comprises a top frame (71), a penetration rod (72), an extrusion roller (73), a transmission disc (74) and a heating rod (75); the top frame (71) is mounted on the inner top surface of the patch frame (1); the penetration rod (72) is mounted between the side walls of the patch frame (1), and the penetration rod (72) passes through the top frame (71); a notch is formed on one side of the top frame (71); the extrusion roller (73) is rotatably mounted between the inner walls of the top frame (71), and the extrusion roller (73) is arranged outside the penetration rod (72); the transmission disc (74) is arranged in the notch, and the transmission disc (74) and the extrusion roller (73) are coaxially driven; and the heating rod (75) is mounted on the outer periphery of the penetration rod (72).

6. The bonding mechanism for OCA optical adhesive processing as claimed in claim 5, characterized in that: The outer circumference of the heating rod (75) is provided with a heat conducting plate (76), and the heat conducting plates (76) are distributed at equal intervals.

7. The bonding mechanism for OCA optical adhesive processing as claimed in claim 6, characterized in that: The diameter of the driving wheel (55) is equal to the diameter of the rubber column (42), and the diameter of the squeezing roller (73) is equal to the diameter of the transmission disc (74).

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