A conductive foam die-cutting machine

Abstract

This utility model discloses a conductive foam die-cutting machine, relating to the field of die-cutting technology. It includes a feeding rack and a controller for controlling the die-cutting machine. A drive assembly is located at the bottom of the feeding rack, driving a clamping assembly. A cutting assembly is mounted on the base of the clamping assembly. The drive assembly includes a first driver, a drive rod driven by the driver, and a drive gear at the end of the drive rod. The drive gear meshes with a moving bar, which is connected to the clamping assembly via a transmission roller. The controller is configured to coordinate the timing of the actions of the drive assembly and the cutting assembly through sensor feedback. This utility model, by setting the drive assembly to simultaneously drive the movement and cutting of the conductive foam, while simultaneously clamping the conductive foam in a plane to prevent displacement, and performing flattening and repair cutting on the edges of the conductive foam, achieves multiple functions, simplifies the drive source, and saves operating costs.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting technology, specifically a conductive foam die-cutting machine. Background Technology

[0002] As electronic devices continue to evolve towards miniaturization and higher performance, electromagnetic interference (EMI) issues within these devices are becoming increasingly prominent. Conductive foam, a material possessing both conductivity and cushioning properties, is widely used in electronic devices to address electromagnetic shielding and grounding issues, ensuring the normal operation of the devices and stable signal transmission. For example, in devices such as smartphones, tablets, and laptops, conductive foam is used to shield against electromagnetic interference generated by components such as batteries, cameras, and antennas.

[0003] An existing patent (authorization announcement number: CN220866747U) discloses a die-cutting machine with the following key technical features: a feeding mechanism is provided on one side of the machine body, facilitating the sequential installation of film rolls onto the first and second feeding components. The first and second guide frames guide the film to the laminating mechanism, integrating lamination and cutting into a single operation, simplifying the workflow. The second guide frame is rotatably mounted on the guide table and its angle is adjusted by a drive component to ensure it is positioned at a suitable angle to align with the second feeding component, guaranteeing smooth material transport. The laminating mechanism is located on one side of the die-cutting mechanism, allowing the material to be directly cut after pressing, avoiding long-distance transport of the film material, reducing the impact of roller pressure on the film, and facilitating subsequent film separation.

[0004] However, the above technical solutions still have certain defects. When conveying film materials, it is impossible to press and clamp the film surface, which leads to problems such as edge curling during the die-cutting process, resulting in low die-cutting efficiency and easy damage. Therefore, a conductive foam sleeve die-cutting machine is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a conductive foam die-cutting machine to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A conductive foam die-cutting machine includes a feeding rack and a controller for controlling the die-cutting machine. A drive assembly is provided at the bottom of the feeding rack, and the drive assembly drives a clamping assembly. A cutting assembly is provided on the base of the clamping assembly.

[0008] The drive assembly includes a first driver, a drive rod driven by the driver, and a drive gear located at the end of the drive rod. The drive gear meshes with a moving bar, and the moving bar is connected to a clamping assembly via a transmission roller.

[0009] The controller is configured to coordinate the timing of the actions of the drive component and the cutting component through sensor feedback. The sensor is a CCD vision locator, which is located above the clamping component.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] As a further embodiment of this utility model: the clamping assembly consists of a base, a transmission rod fixedly mounted on the base, and a transmission gear connected to the transmission rod via a belt, which is a clamping device for clamping the conductive foam.

[0012] As a further embodiment of this utility model: the base includes a collection platform, a collection hole on the top of the collection platform, and a discharge hole on the side of the collection platform.

[0013] As a further embodiment of this utility model: the clamp includes a rotating rod rotatably mounted on the side wall of the collection platform, a rotating disk fixedly mounted on the outer wall of the rotating rod, pressing rollers arranged in an array around the center position of the rotating disk, a support frame fixedly mounted on the top of the collection platform, a bearing rod fixedly mounted on the support frame, and a transmission belt for guiding the bearing rod.

[0014] As a further embodiment of this invention: the cutting assembly includes a second driver and a cutting blade, wherein the output end of the second driver is fixedly connected to the center position of the cutting blade.

[0015] As a further improvement of this utility model, both the first driver and the second driver are rotary motors.

[0016] As a further improvement of this utility model, the drive rod and the transmission rod are connected by a reversing gear set.

[0017] As a further improvement of this utility model: the surfaces of the transmission belt and the moving strip are covered with an antistatic coating, and there are two sets of both the transmission belt and the moving strip, with the spacing between the transmission belts being smaller than the spacing between the moving strips.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model sets up a driving component to simultaneously drive the movement and cutting of conductive foam, while clamping the conductive foam in a plane to prevent it from shifting, and smoothing and repairing the edges of the conductive foam. This enables multiple functions to be driven, simplifying the driving source and saving operating costs.

[0020] 2. This utility model prevents particles from flying by setting up a negative pressure waste collection system and anti-static design, and collects the conductive foam that falls off during cutting to prevent waste. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the drive component of this utility model;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the clamp of this utility model;

[0025] Figure 5 This is a schematic diagram of the cutting component of this utility model;

[0026] Figure 6 This is a schematic diagram of the base of this utility model.

[0027] Figure label annotations: 1. Feeding rack; 2. Drive assembly; 3. Controller; 4. Clamping assembly; 5. Cutting assembly;

[0028] 21. First driver; 22. Drive rod; 23. Drive gear; 24. Moving bar; 25. Fixed base; 26. Transmission wheel; 27. Transmission roller; 28. Bracket; 29. ​​Presser;

[0029] 41. Base; 42. Transmission rod; 43. Transmission gear; 44. Clamp;

[0030] 411. Collection platform; 412. Collection hole; 413. Discharge hole;

[0031] 441. Rotating rod; 442. Rotating disc; 443. Pressing roller; 444. Support frame; 445. Transmission belt; 446. Bearing rod;

[0032] 51. Second driver; 52. Cutting blade. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] In one embodiment, such as Figures 1-6As shown, a conductive foam die-cutting machine includes a feeding rack 1 and a controller 3 for controlling the die-cutting machine. The feeding rack 1 has a drive assembly 2 at its bottom, which drives a clamping assembly 4. The clamping assembly 4 has a cutting assembly 5 on its base 41. The clamping assembly 4 consists of a base 41, a transmission rod 42 fixedly mounted on the base 41, a transmission gear 43 connected to the transmission rod 42 via a belt, and a clamping device 44 for clamping the conductive foam. The base 41 includes a collection platform 411, a collection hole 412 on the top of the collection platform 411, and a discharge hole 413 on the side of the collection platform 411.

[0035] In this embodiment, conductive foam is placed by the feeding rack 1 and driven to move by the driving component 2 to keep the conductive foam in the center position. The clamping component 4 ensures that the conductive foam will not deviate during the die cutting process. At the same time, the cut waste is collected by the collection table 411 and discharged through the discharge hole 413 to complete the cycle.

[0036] In one embodiment, such as Figure 2 As shown, the drive assembly 2 includes a first driver 21, a drive rod 22 driven by the driver, and a drive gear 23 located at the end of the drive rod 22. The drive gear 23 meshes with a moving bar 24, and the moving bar 24 is connected to the clamping assembly 4 via a transmission roller 27. The controller 3 is configured to coordinate the timing of the actions of the drive assembly 2 and the cutting assembly 5 through sensor feedback. The sensor is a CCD vision locator, which is located above the clamping assembly 4. The first driver 21 drives the helical gear to rotate through the drive rod 22, causing the gear to mesh precisely with the moving bar 24. At the same time, the moving bar 24 meshing with the gear moves linearly. The drive rod 22 and the transmission rod 42 are connected through a reversing gear set, so that the first driver 21 simultaneously drives the drive assembly 2 and the clamping assembly 4. Dynamic compensation mechanism: The encoder monitors the position of the moving bar 24 in real time and compares it with the coordinates of the foam positioning mark collected by the CCD to form a closed-loop control.

[0037] In one embodiment, such as Figure 4As shown, the clamping assembly 4 consists of a base 41, a transmission rod 42 fixedly mounted on the base 41, a transmission gear 43 connected to the transmission rod 42 via a belt, and a clamping device 44 for clamping the conductive foam. The clamping device 44 includes a rotating rod 441 rotatably mounted on the side wall of the collection platform 411, a rotating disk 442 fixedly mounted on the outer wall of the rotating rod 441, pressing rollers 443 arranged in an array around the center of the rotating disk 442, a support frame 444 fixedly mounted on the top of the collection platform 411, and a bearing rod 446 fixedly mounted on the support frame 444. The transmission belt 445 guides the foam; the array-type pressing roller 443 achieves uniform pressure distribution and adapts to changes in foam thickness. The transmission belt 445 is equipped with a magnetic powder brake to maintain constant tension and achieve coaxiality between the Φ0.3mm positioning hole and the outer contour. The elastic silicone layer adapts to different thicknesses, and through the rotary array pressing design, it achieves high-precision positioning while ensuring the integrity of the conductive foam. This improves the positioning accuracy by more than 3 times compared to the traditional parallel pressure plate structure. In actual use, the thickness of the silicone layer of the pressing roller 443 is adjusted according to the hardness of the foam.

[0038] In one embodiment, such as Figure 5 As shown, the cutting assembly 5 includes a second driver 51 and a cutting blade 52. The output end of the second driver 51 is fixedly connected to the center position of the cutting blade 52. Both the first driver 21 and the second driver 51 are rotary motors. By driving the second driver 51, the cutting blade 52 is driven to rotate, so as to cut the corners of the conductive foam and trim the uneven edges of the conductive foam to prevent rework during quality inspection and thus increase the processing time.

[0039] In one embodiment, such as Figure 4 As shown, the transmission belt 445 and the moving bar 24 are coated with an antistatic coating, and there are two sets of both the transmission belt 445 and the moving bar 24. The spacing between the transmission belts 445 is smaller than the spacing between the moving bars 24. The use of two sets of transmission belts 445 and moving bars 24 is typically to improve the stability and load-bearing capacity of the equipment. The two sets of transmission belts 445 can share the load, making the transmission process smoother, reducing the pressure on a single transmission belt 445, lowering the risk of equipment downtime due to the failure of a single transmission belt 445, ensuring the accuracy and reliability of the movement process, and simultaneously, the antistatic coating on their surfaces effectively prevents the generation and accumulation of static electricity, ensuring the normal operation of the equipment and that product quality are not affected by static electricity.

[0040] The above embodiments disclose a conductive foam die-cutting machine, wherein the conductive foam is moved by the drive component 2, and the conductive foam is edge-cut by the clamping component 4 while being clamped. The pressure is evenly distributed by the array-type pressing rollers 443, which are adaptive to changes in foam thickness. At the same time, the negative pressure waste collection system and anti-static design prevent particles from flying away.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A conductive foam die-cutting machine, comprising a feeding rack (1) and a controller (3) for controlling the die-cutting machine, characterized in that, The bottom of the feeding rack (1) is provided with a driving component (2), the driving component (2) drives a clamping component (4), and a cutting component (5) is provided on the base (41) of the clamping component (4). The drive assembly (2) includes a first driver (21), a drive rod (22) driven by the driver, and a drive gear (23) located at the end of the drive rod (22). The drive gear (23) meshes with the moving bar (24), and the moving bar (24) is connected to the clamping assembly (4) through the transmission roller (27). The controller (3) is configured to coordinate the timing of the actions of the drive component (2) and the cutting component (5) through sensor feedback. The sensor is a CCD visual locator, which is located above the clamping component (4).

2. The conductive foam sleeve die cutter of claim 1, wherein, The clamping assembly (4) consists of a base (41), a transmission rod (42) fixedly mounted on the base (41), a transmission gear (43) connected to the transmission rod (42) via a belt, and a clamp (44) for clamping the conductive foam.

3. The die cutting machine of claim 2, wherein, The base (41) includes a collection platform (411), a collection hole (412) on the top of the collection platform (411), and a discharge hole (413) on the side of the collection platform (411).

4. The die cutting machine of claim 2, wherein, The clamp (44) includes a rotating rod (441) rotatably mounted on the side wall of the collection platform (411), a rotating disk (442) fixedly mounted on the outer wall of the rotating rod (441), pressing rollers (443) arranged in an array around the center position of the rotating disk (442), a support frame (444) fixedly mounted on the top of the collection platform (411), a bearing rod (446) fixedly mounted on the support frame (444), and a transmission belt (445) for guiding the bearing rod (446).

5. The conductive foam sleeve die cutter of claim 1, wherein, The cutting assembly (5) includes a second driver (51) and a cutting blade (52), with the output end of the second driver (51) fixedly connected to the center position of the cutting blade (52).

6. The conductive foam sleeve die cutter of claim 1, wherein, Both the first driver (21) and the second driver (51) are rotary motors.

7. The conductive foam sleeve die cutter of claim 1, wherein, The drive rod (22) and the transmission rod (42) are connected by a reversing gear set.

8. The die cutter of claim 4, wherein, The transmission belt (445) and the moving bar (24) are covered with an antistatic coating, and there are two sets of transmission belts (445) and moving bars (24). The distance between transmission belts (445) is smaller than the distance between moving bars (24).

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