Slitting and laminating equipment applied to anisotropic conductive adhesive of membrane switch

Abstract

The utility model discloses slitting and laminating equipment applied to anisotropic conductive adhesive of a membrane switch, which comprises a case frame, a mounting seat is arranged at the upper part in the case frame, a fixed guide rail is fixedly mounted on the side surface of the mounting seat in the case frame, and a stepping motor is fixedly mounted at one end of the fixed guide rail. According to the conductive adhesive cutting device, fixed-length cutting can be carried out on conductive adhesive, batch cutting is carried out according to the preset specification, the cutting efficiency is improved, the cutting efficiency is improved, the production cost is reduced, and the production efficiency is improved. And after cutting, automatic positioning is directly carried out through the CCD industrial camera to realize automatic lamination of a preset position of the membrane switch, the whole process is automatically realized, manual participation is not needed, the slitting lamination efficiency of the equipment is greatly improved, the cost expenditure of manual and cutting die production is reduced, the production benefit is improved, and the production cost is reduced. The problems in the background technology are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thin film switch production, more particularly, the present application relates to a slitting and laminating device for anisotropic conductive adhesive applied to a thin film switch. BACKGROUND

[0002] A thin film switch is a common input device and is widely used in various electronic products, including household appliances, industrial control devices and medical devices, etc. The thin film switch is also applied in the field of keyboards. Anisotropic conductive adhesive is used to adhere between the keyboard and the thin film. The anisotropic conductive adhesive has the characteristics of conducting in the vertical direction and insulating in the horizontal direction, so as to realize the transmission of the pressing signal of the keyboard.

[0003] In the process of laminating the existing conductive adhesive with the thin film switch, the following problems exist: first, due to the specification limitation of the thin film switch, the size specification of the laminated conductive adhesive also needs to be limited. The existing conductive adhesive is often slitted by a knife die during cutting. Therefore, different knife dies need to be replaced for different conductive adhesive specifications. The knife die not only needs to consume a certain amount of time to replace, but also needs a large amount of cost to open a die separately. Therefore, the overall slitting efficiency of the device is affected, and the overall production cost is increased. Second, the workers need to manually laminate the adhesive during the laminating process. Therefore, the lamination process is greatly limited by the proficiency of the workers. In addition, the manual lamination efficiency is limited, which increases the labor cost in the production process. In addition, the machine may cause safety hazards to the workers during operation, which further affects the production efficiency of the overall device. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a slitting and laminating device for anisotropic conductive adhesive applied to a thin film switch. The device can realize length cutting of the conductive adhesive, batch cutting through preset specifications, and automatic positioning by a CCD industrial camera after cutting to realize automatic lamination of the thin film switch at the predetermined position. The whole process is automated, without the need for manual participation, greatly improving the slitting and laminating efficiency of the device, reducing the labor and die production cost, and improving the production benefit, so as to solve the problems in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a slitting and bonding device for anisotropic conductive adhesive for membrane switches, comprising a chassis frame, a mounting base disposed at the top inside the chassis frame, a fixed guide rail fixedly mounted on the side of the mounting base inside the chassis frame, a stepper motor fixedly mounted at one end of the fixed guide rail, an electric slide rail slidably mounted on the surface of the fixed guide rail, a hydraulic rod disposed above the electric slide rail, a worktable disposed in the middle inside the chassis frame, a combined mounting plate fixedly mounted in front of the lower end of the hydraulic rod, and a [missing information - likely a device or component] fixedly mounted above the combined mounting plate. A film roller is rotatably mounted on the left side of the surface of the combined mounting plate, and a winding roller is rotatably mounted on the right side of the surface of the combined mounting plate. A winding motor is fixedly mounted on the back of the combined mounting plate directly behind the winding roller. A guide roller structure is provided on the surface of the combined mounting plate below the winding roller. A limit roller frame is fixedly mounted on the front of the combined mounting plate below the limit roller frame. A mounting frame is fixedly mounted on the front of the combined mounting plate above the limit roller frame. A CCD industrial camera is fixedly mounted inside the mounting frame. A high-intensity flashlight is provided below the CCD industrial camera.

[0006] In a preferred embodiment, the surface of the workbench is provided with a keyboard membrane switch, and a through hole is provided on the side of the workbench. A photoelectric sensor and a laser cutter are respectively fixedly installed inside the through hole.

[0007] In a preferred embodiment, there are two limiting roller frames, and conductive adhesive rolls are wound inside both limiting roller frames. A pneumatic valve is fixedly installed on the surface of the joint mounting plate at the middle of the two limiting roller frames. An electric telescopic rod is fixedly installed above the pneumatic valve, and a suction nozzle is fixedly installed below the pneumatic valve.

[0008] In a preferred embodiment, the conductive film roll 7 passes through the bottom end of the suction nozzle, and its left end is wrapped around the film roll roller, while its right end is fixedly wrapped around the winding roller after passing through the guide roller structure.

[0009] In a preferred embodiment, a controller is fixedly installed inside the chassis frame, and the controller is electrically connected to the laser cutter, photoelectric sensor, electric telescopic rod, pneumatic valve, CCD industrial camera, winding motor, hydraulic rod and stepper motor respectively.

[0010] The technical effects and advantages of this invention are as follows:

[0011] 1. This invention achieves precise automatic cutting of conductive adhesive by using a photoelectric sensor and a laser cutter in combination, thereby improving the automation performance and processing efficiency of the device.

[0012] 2. This invention uses a CCD industrial camera to accurately identify the position of the keyboard membrane switch, enabling adhesive application at precise locations and thus further improving the overall adhesive application efficiency of the equipment.

[0013] 3. This invention, through the setting of a controller and electronic components, helps workers to pre-set the specifications for conductive adhesive bonding. Then, it uses a laser cutter for fixed-distance cutting, followed by the adsorption of the cut conductive adhesive by a pneumatic valve and suction nozzle. Finally, it uses a CCD industrial camera to perform fixed-point adhesive application on the keyboard membrane switches. The entire process is automated, eliminating the need for manual cutting and adhesive application, greatly improving the overall processing efficiency of the equipment, reducing the production cost of the die-cutting mold, further saving costs and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle.

[0016] Figure 3 This is a schematic diagram of the top surface structure of the workbench of the present invention.

[0017] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point B.

[0018] Figure 5 This is a schematic diagram of the limiting roller frame connection structure of the present invention.

[0019] The attached diagram is labeled as follows: 1. Chassis frame; 2. Mounting base; 3. Fixed guide rail; 4. Stepper motor; 5. Electric slide rail; 6. Hydraulic rod; 7. Worktable; 8. Combined mounting plate; 9. Film roll; 10. Winding motor; 11. Winding roller; 12. Guide roller structure; 13. Mounting bracket; 14. CCD industrial camera; 15. High-intensity flashlight; 16. Limiting roller frame; 17. Conductive film; 18. Pneumatic valve; 19. Electric telescopic rod; 20. Nozzle; 701. Keyboard membrane switch; 702. Through hole; 703. Photoelectric sensor; 704. Laser cutter. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] As attached Figures 1-5 The illustrated slitting and bonding equipment for anisotropic conductive adhesive used in membrane switches includes a chassis frame 1. A mounting base 2 is disposed on the upper part of the chassis frame 1. A fixed guide rail 3 is fixedly mounted on the side of the mounting base 2 inside the chassis frame 1. A stepper motor 4 is fixedly mounted on one end of the fixed guide rail 3. An electric slide rail 5 is slidably mounted on the surface of the fixed guide rail 3. A hydraulic rod 6 is disposed above the electric slide rail 5. A worktable 7 is disposed in the middle of the interior of the chassis frame 1. A combined mounting plate 8 is fixedly mounted in front of the lower end of the hydraulic rod 6. A 601 is fixedly mounted on top of the combined mounting plate 8. The surface of the combined mounting plate 8 is located on the left side of the 601. A film roller 9 is rotatably mounted on the side. A winding roller 11 is rotatably mounted on the surface of the combined mounting plate 8, located on the right side of 601. A winding motor 10 is fixedly mounted on the back of the combined mounting plate 8, located directly behind the winding roller 11. A guide roller structure 12 is provided on the surface of the combined mounting plate 8, located below the winding roller 11. A limiting roller frame 16 is fixedly mounted on the front of the combined mounting plate 8, located below 601. A mounting frame 13 is fixedly mounted on the front of the combined mounting plate 8, located above the limiting roller frame 16. A CCD industrial camera 14 is fixedly mounted inside the mounting frame 13. A high-intensity flashlight 15 is provided below the CCD industrial camera 14.

[0022] The high-intensity flashlight 15 can increase the brightness of the area identified by the CCD industrial camera 14, thereby improving the recognition accuracy, preventing the area from being too dark to recognize or the recognition error, and improving the overall accuracy of the adhesive application operation.

[0023] The workbench 7 is equipped with a keyboard membrane switch 701 on its surface and a through hole 702 on its side. A photoelectric sensor 703 and a laser cutter 704 are fixedly installed inside the through hole 702. The photoelectric sensor 703 is used to detect when the joint mounting plate 8 and the components connected to it move to the top and block the signal, and then controls the laser cutter 704 to start cutting, thus ensuring the overall safety and automation efficiency of the equipment.

[0024] The system comprises two limiting roller frames 16, each with a conductive film roll 17 wound inside. A pneumatic valve 18 is fixedly mounted on the surface of the combined mounting plate 8 at the center of each limiting roller frame 16. An electric telescopic rod 19 is fixedly mounted above the pneumatic valve 18, and a suction nozzle 20 is fixedly mounted below it. The conductive film roll 177 passes through the bottom of the suction nozzle 20, with its left end intertwined with the film roll roller 9, and its right end intertwined with the winding roller 1 after passing through the guide roller structure 12. 1. The components are fixedly wound together. A controller is fixedly installed inside the frame 1. The controller is electrically connected to the laser cutter 704, photoelectric sensor 703, electric telescopic rod 19, pneumatic valve 18, CCD industrial camera 14, winding motor 10, hydraulic rod 6 and stepper motor 4 respectively. The conductive film roll 17 passes through the limiting roller frame 16 at both ends to limit it, ensuring that the film segment adsorbed by the pneumatic valve 18 and the suction nozzle 20 is always consistent. The two ends can be standardized to prevent the film roll from folding.

[0025] It should be noted that the control of related electronic components by the controller to achieve the purpose of transmission and the effect of component movement are all existing mature technologies. Therefore, this application will not elaborate on the control process and principle.

[0026] The working principle of this invention is as follows: The keyboard membrane switch 701 is fixedly placed on the surface of the workbench 7. Then, the operator adjusts the laser cutting distance according to the required conductive adhesive specifications, starts the winding motor 10, and drives the winding roller 11 to rotate. The conductive adhesive roll 17 wound on the adhesive roll roller 9 passes under the two limit roller frames 16 and the suction nozzle 20. When it moves above the through hole 702, the photoelectric sensor 703 blocks it, and then controls the laser cutter 704 to start cutting the conductive adhesive roll 17 located above. After cutting, the pneumatic valve 18 starts and drives the suction nozzle 20 to adsorb the cut conductive adhesive segment. At this time, when it moves above the keyboard membrane switch 701, the CCD industrial camera 14 identifies the precise position and stops moving. Then, the electric telescopic rod 19 is started, the pneumatic valve 18 is closed, and the adhesive segment adsorbed by the suction nozzle 20 is adhered to the preset position of the keyboard membrane switch 701 by the adhesive at the bottom. The electric telescopic rod 19 is reset, and the above overall steps are repeated to realize the assembly line adhesive application operation.

[0027] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this invention only involve structures related to the embodiments disclosed in this invention; other structures can refer to general designs. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cutting and bonding equipment for anisotropic conductive adhesives used in membrane switches, comprising a chassis frame (1), characterized in that, A mounting base (2) is provided on the upper part of the inside of the chassis frame (1). A fixed guide rail (3) is fixedly installed on the side of the mounting base (2) inside the chassis frame (1). A stepper motor (4) is fixedly installed on one end of the fixed guide rail (3). An electric slide rail (5) is slidably installed on the surface of the fixed guide rail (3). A hydraulic rod (6) is provided above the electric slide rail (5). A workbench (7) is provided in the middle inside the chassis frame (1). A combined mounting plate (8) is fixedly installed in front of the lower end of the hydraulic rod (6). A (601) is fixedly installed on the upper part of the combined mounting plate (8). A film roller (9) is rotatably installed on the surface of the combined mounting plate (8) on the left side of (601). A winding roller (11) is rotatably mounted on the surface of the mounting plate (8) located on the right side of (601). A winding motor (10) is fixedly mounted on the back of the combined mounting plate (8) located directly behind the winding roller (11). A guide roller structure (12) is provided on the surface of the combined mounting plate (8) located below the winding roller (11). A limiting roller frame (16) is fixedly mounted on the front of the combined mounting plate (8) located below (601). A mounting frame (13) is fixedly mounted on the upper part of the limiting roller frame (16) located on the front of the combined mounting plate (8). A CCD industrial camera (14) is fixedly mounted inside the mounting frame (13). A high-intensity flashlight (15) is provided below the CCD industrial camera (14).

2. The slitting and bonding equipment for anisotropic conductive adhesive used in membrane switches according to claim 1, characterized in that: The surface of the workbench (7) is provided with a keyboard membrane switch (701), and a through hole (702) is provided on the side of the workbench (7). A photoelectric sensor (703) and a laser cutter (704) are respectively fixedly installed inside the through hole (702).

3. The slitting and bonding equipment for anisotropic conductive adhesive used in membrane switches according to claim 1, characterized in that: There are two limiting roller frames (16). The inside of each limiting roller frame (16) is wrapped with conductive adhesive roll (17). A pneumatic valve (18) is fixedly installed on the surface of the joint mounting plate (8) at the middle of the two limiting roller frames (16). An electric telescopic rod (19) is fixedly installed above the pneumatic valve (18). A suction nozzle (20) is fixedly installed below the pneumatic valve (18).

4. The slitting and bonding equipment for anisotropic conductive adhesive used in membrane switches according to claim 3, characterized in that: The conductive film roll (17) 7 passes through the bottom end of the suction nozzle (20), and its left end is wrapped with the film roll roller (9), while its right end is fixedly wrapped with the winding roller (11) after passing through the guide roller structure (12).

5. The slitting and bonding equipment for anisotropic conductive adhesive used in membrane switches according to claim 1, characterized in that: The controller is fixedly installed inside the chassis frame (1). The controller is electrically connected to the laser cutter (704), photoelectric sensor (703), electric telescopic rod (19), pneumatic valve (18), CCD industrial camera (14), winding motor (10), hydraulic rod (6) and stepper motor (4).

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