Film switch special cutting and pasting equipment

Abstract

This invention discloses a slitting and bonding device for anisotropic conductive adhesive used in membrane switches. The device includes a chassis frame, an upper mounting base inside the chassis frame, and a fixed guide rail fixedly mounted on the side of the mounting base inside the chassis frame. A stepper motor is fixedly mounted at one end of the fixed guide rail, and an electric slide rail is slidably mounted on the surface of the fixed guide rail. A hydraulic rod is positioned above the electric slide rail. A worktable is located in the middle inside the chassis frame. This invention enables fixed-length cutting of the conductive adhesive, allowing for batch cutting according to preset specifications. After cutting, an industrial CCD camera is used for automatic positioning to automatically bond the adhesive to the membrane switch at predetermined positions. The entire process is automated, requiring no manual intervention, significantly improving the slitting and bonding efficiency of the equipment, reducing labor and die-cutting production costs, and increasing production efficiency, thus solving the problems mentioned in the background section.

Description

Technical Field

[0001] This invention relates to the field of membrane switch manufacturing technology, and more specifically, to a cutting and bonding equipment for anisotropic conductive adhesives used in membrane switches. Background Technology

[0002] Membrane switches are a common input device widely used in various electronic products, including home appliances, industrial control equipment, and medical devices. Membrane switches are also used in the keyboard field. Anisotropic conductive adhesive is used to bond the keyboard and the membrane. The anisotropic conductive adhesive has the property of conducting electricity in the vertical direction and insulating in the horizontal direction, so as to realize the transmission of keyboard keying signals.

[0003] Existing conductive adhesives have the following problems when bonding with membrane switches: First, due to the specifications of membrane switches, the size of the conductive adhesive to be bonded also needs to be limited. Existing conductive adhesives are often cut using die-cutting molds, requiring different die-cutting molds for different adhesive specifications. Changing the die-cutting molds is time-consuming and labor-intensive, and also incurs significant costs for individual mold opening, thus affecting the overall cutting efficiency of the equipment and increasing overall production costs. Second, manual application of the adhesive is required during the bonding process. Therefore, the application process is greatly limited by the skill level of the workers. Furthermore, manual application has limited efficiency, increasing labor costs in the production process. Additionally, the machine may pose safety hazards to personnel during the bonding process, further impacting the overall production efficiency of the equipment. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, this invention provides a slitting and bonding device for anisotropic conductive adhesive used in membrane switches. This device can perform fixed-length cutting of the conductive adhesive, batch cutting according to preset specifications, and automatically bonding the membrane switch to predetermined positions using a CCD industrial camera after cutting. The entire process is automated, requiring no manual intervention, significantly improving the slitting and bonding efficiency of the equipment, reducing labor and die-cutting production costs, and increasing production efficiency, thereby solving the problems mentioned in the background art.

[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 Figure 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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