Cell phone scf conductive shield die cutting apparatus

Abstract

This utility model discloses a die-cutting device for conductive shielding SCF (Superficial Carbon Fiber) in mobile phones, relating to the technical field of die-cutting machine equipment. It includes a base, with drive wheel assemblies fixedly connected to both ends of the top of the base. A U-shaped support and a U-shaped worktable are fixedly connected to the top of the base. A first hydraulic rod is fixedly connected to the top of the U-shaped support. A high-frequency punching drive device is slidably connected between the inner walls of both ends of the U-shaped support. One end of the first hydraulic rod passes through the top of the U-shaped support and is fixedly connected to the top of the high-frequency punching drive device. The base provided by this utility model avoids material adhesion to the cutter head, which affects processing efficiency, while also preventing incomplete cutting due to uneven pressure. This solves the problems of material adhesion to the cutter head caused by electrostatic adsorption and uneven pressure, and incomplete cutting, that occur in traditional mobile phone SCF conductive shielding die-cutting devices.

Description

Technical Field

[0001] This utility model relates to the technical field of die-cutting machine equipment, specifically to a mobile phone SCF conductive shielding die-cutting device. Background Technology

[0002] The mobile phone SCF conductive shielding die-cutting device is a specialized automated processing equipment that uses a specific feeding, positioning, die-cutting, and waste removal structure to roll and cut SCF conductive shielding material into the specific shapes required for mobile phone parts.

[0003] Existing traditional mobile phone SCF conductive shielding die-cutting devices have two major problems during processing: First, static electricity and adhesion. SCF material contains a metal layer and has high adhesive content. During die-cutting, static electricity is generated by friction with the feeding roller and the cutter head. This adhesion causes the material edges to stick to the cutter head or the feeding path, resulting in wrinkles and positioning misalignment. Furthermore, adhesive residue on the cutter head exacerbates jamming, requiring frequent machine stops for cleaning, reducing efficiency and increasing wear. Second, uneven pressure and incomplete cutting. Most devices rely on a single drive component to press the cutter head down. Due to deviations in the parallelism between the cutter head and the worktable, fluctuations in driving force, or differences in material thickness, the pressure on different areas of the cutter head is uneven. Areas with insufficient pressure are not cut completely, requiring manual secondary processing. Moreover, local overload accelerates cutter head wear, making it difficult to meet high-precision requirements. Utility Model Content

[0004] In view of the problems existing in the current mobile phone SCF conductive shielding die-cutting device, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a mobile phone SCF conductive shielding die-cutting device, which solves the problems of material adhesion caused by electrostatic adsorption and material adhesion of the cutter head in the traditional mobile phone SCF conductive shielding die-cutting device, and incomplete cutting caused by uneven pressure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A mobile phone SCF conductive shielding die-cutting device includes a base, with drive wheel assemblies fixedly connected to both ends of the top of the base, a U-shaped support seat and a U-shaped worktable fixedly connected to the top of the base, a first hydraulic rod fixedly connected to the top of the U-shaped support seat, a high-frequency punching drive device slidably connected between the inner sidewalls of the two ends of the U-shaped support seat, one end of the first hydraulic rod passing through the top of the U-shaped support seat and fixedly connected to the top of the high-frequency punching drive device, and a connecting plate fixedly connected to the bottom of the high-frequency punching drive device through a buffer mechanism, with a die-cutting blade fixedly connected to the bottom of the connecting plate. Auxiliary rollers are rotatably connected between the inner sidewalls of both ends of the U-shaped workbench. A guide frame plate is fixedly connected to the top of the U-shaped workbench through an opening. A vibration platform is fixedly connected between the guide frame plates. A vibration motor is fixedly connected to the bottom of the cavity of the U-shaped workbench. The vibration end of the vibration motor is fixedly connected to the bottom of the vibration platform. Static eliminator plates are fixedly connected to both sidewalls of the connecting plate. A power supply mechanism is provided in the cavity of the base and fixedly connected to the static eliminator plates at both ends. A display controller is fixedly connected to the sidewall of the base.

[0007] Preferably, the buffer mechanism includes a buffer chamber, a guide port, a friction sleeve, a hydraulic spring damper, and a polyurethane buffer ring. The actuating end of the high-frequency punching drive device is fixedly connected to the buffer chamber. The bottom of the buffer chamber has a guide port, and a friction sleeve is fitted inside the chamber. A hydraulic spring damper is fixedly connected between the inner wall of the buffer chamber and the top of the friction sleeve. A polyurethane buffer ring is fixedly connected to the inner wall of the buffer chamber. The polyurethane buffer ring corresponds to the position of the friction sleeve. The bottom of the friction sleeve is fixedly connected to the top of the connecting plate.

[0008] Preferably, the power supply mechanism includes a fan, a double-ended branch pipe, an ion generation system, an ion monitoring system, and a filter cover. The fan is fixedly connected to one end of the cavity of the base, and the double-ended branch pipe is fixedly connected to the air outlet of the fan. The ion generation system is fixedly connected to the other end of the cavity of the base. The ion monitoring system is fixedly connected to the top of the ion generation system. The output ports of the ion generation system and the ion monitoring system are fixedly connected to the input ports of the double-ended branch pipe. The air inlet of the fan is threadedly connected to the filter cover. The two end outlets of the double-ended branch pipe are respectively fixedly connected to the corresponding air inlets of the electrostatic eliminator.

[0009] Preferably, both drive wheel assemblies include U-shaped brackets, with rotating wheels rotatably connected between the two ends of the U-shaped brackets. A second hydraulic rod is fixedly connected to the top of the U-shaped bracket, with one end of the second hydraulic rod passing through the top of the U-shaped bracket and fixedly connected to an electric drive wheel.

[0010] Furthermore, the static eliminator plates at both ends are trapezoidal hollow plates, and the trapezoidal surface has multiple air outlet holes.

[0011] Preferably, the blade surface of the die-cutting knife is coated with a nano-ceramic wear-resistant coating, the top of the vibration platform is coated with a polytetrafluoroethylene anti-stick coating, and the inner wall of the static elimination air plate and the hole wall of the air outlet are coated with an epoxy-modified acrylate antistatic coating.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model utilizes a power supply mechanism (fan + ion generation system) to provide ion wind to the static elimination air plate. Combined with the trapezoidal air plate and multi-angle air outlet design, the set filter cover effectively filters dust and avoids secondary pollution.

[0013] 2. This utility model utilizes a first hydraulic rod in conjunction with a buffer mechanism (hydraulic spring buffer + polyurethane buffer ring) to reduce the impact force by 80%, and the force deviation of the die-cutting blade is ≤5%; the connecting plate ensures uniform pressure distribution on the blade, and the cutting completion rate of 0.1-2mm thick SCF material reaches 100%, solving the cutting defects caused by uneven pressure in traditional devices.

[0014] 3. This utility model utilizes a set drive wheel assembly to achieve automated material conveying (adjustable from 0.5-2m / min), and with the high-frequency punching drive device (50-100 times / min), the die-cutting efficiency is increased by 2 times compared with the traditional device. The set vibration platform further avoids material adhesion, and the set display controller realizes visual control of parameters, reducing manual intervention by 60% and shortening the overall production cycle by 40%. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front sectional view of the present invention; Figure 3 This is a partial cross-sectional view of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Base; 2. Drive wheel assembly; 3. U-shaped support base; 4. U-shaped worktable; 5. First hydraulic rod; 6. High-frequency punching drive device; 7. Connecting plate; 8. Die-cutting knife; 9. Auxiliary roller; 10. Guide frame plate; 11. Vibration platform; 12. Vibration motor; 13. Static eliminator fan plate; 14. Display controller; 15. Buffer chamber; 16. Guide port; 17. Friction sleeve; 18. Hydraulic spring buffer; 19. Polyurethane buffer ring; 20. Fan; 21. Double-ended branch pipe; 22. Ion generation system; 23. Ion monitoring system; 24. Filter cover; 25. U-shaped bracket; 26. Rotating wheel; 27. Second hydraulic rod; 28. Electric drive wheel; 29. ​​Air outlet. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model discloses a mobile phone SCF conductive shielding die-cutting device.

[0020] This utility model provides, for example Figure 1-3 The mobile phone SCF conductive shielding die-cutting device shown includes a base 1, with drive wheel assemblies 2 fixedly connected to both ends of the top of the base 1, a U-shaped support 3 and a U-shaped worktable 4 fixedly connected to the top of the base 1, a first hydraulic rod 5 fixedly connected to the top of the U-shaped support 3, a high-frequency punching drive device 6 slidably connected between the inner sidewalls of the two ends of the U-shaped support 3, one end of the first hydraulic rod 5 passing through the top of the U-shaped support 3 and fixedly connected to the top of the high-frequency punching drive device 6, and a connecting plate 7 fixedly connected to the bottom of the high-frequency punching drive device 6 through a buffer mechanism, and a die-cutting blade 8 fixedly connected to the bottom of the connecting plate 7. Auxiliary rollers 9 are rotatably connected between the inner sidewalls of both ends of the U-shaped worktable 4. A guide frame plate 10 is fixedly connected to the top of the U-shaped worktable 4 through an opening. A vibration platform 11 is fixedly connected between the guide frame plates 10. A vibration motor 12 is fixedly connected to the bottom of the cavity of the U-shaped worktable 4. The vibration end of the vibration motor 12 is fixedly connected to the bottom of the vibration platform 11. Static eliminator plates 13 are fixedly connected to both sidewalls of the connecting plate 7. A power supply mechanism is provided inside the cavity of the base 1 and fixedly connected to the static eliminator plates 13 at both ends. A display controller 14 is fixedly connected to the sidewall of the base 1. The drive wheel assembly 2 is used to realize S The automated continuous conveying of CF conductive shielding material replaces manual feeding. A U-shaped support 3 provides a stable mounting frame for the first hydraulic rod 5 and the high-frequency punching drive 6, while limiting the punching device to vertical movement to ensure punching verticality. The first hydraulic rod 5 allows for precise adjustment of the punching pressure (5-20kN adjustable) to accommodate different thicknesses of SCF material (0.1-2mm), preventing incomplete cutting due to insufficient pressure. The high-frequency punching drive 6 (punching frequency 50-100 times / min) drives the die-cutting blade 8 to operate at high frequency, increasing die-cutting efficiency to twice that of traditional devices. The system utilizes a buffer mechanism to cushion the impact force during the punching process, preventing damage to the die-cutting blade 8 due to rigid impact. A connecting plate 7 ensures even force distribution on the die-cutting blade 8, avoiding cutting deviations caused by uneven force on the blade edge. The die-cutting blade 8 is made of Cr12MoV mold steel with a hardness of HRC60-62, ensuring a smooth, burr-free cut and improving product qualification rate. Auxiliary rollers 9 reduce friction between the material and the worktable, preventing surface scratches. A guide frame plate 10 provides sliding support for the vibration platform 11. Driven by a vibration motor 12, the vibration platform 11 generates 50-1... 00Hz high-frequency micro-vibration further separates the material from the die-cutting blade 8, reducing material adhesion. The electrostatic eliminator 13 sprays ion air onto the die-cutting area to eliminate static electricity on the material surface. The power supply mechanism provides a stable ion air source for the electrostatic eliminator 13. The display controller 14 displays parameters such as punching pressure, speed, and electrostatic voltage in real time, facilitating precise control by the operator. Through electrostatic elimination and uniform pressure design, this solves the problems of material adhesion caused by electrostatic adsorption and material adhesion to the cutter head, as well as incomplete cutting caused by uneven pressure, in traditional mobile phone SCF conductive shielding die-cutting devices.

[0021] To buffer the impact of punching and ensure that the die-cutting blade is subjected to uniform force, such as Figure 2 and 3The buffer mechanism includes a buffer chamber 15, a guide port 16, a friction sleeve 17, a hydraulic spring damper 18, and a polyurethane buffer ring 19. The high-frequency punching drive device 6 is fixedly connected to the buffer chamber 15 at its actuating end. A guide port 16 is provided at the bottom of the buffer chamber 15, and the friction sleeve 17 is frictionally fitted inside the chamber. A hydraulic spring damper 18 is fixedly connected between the inner wall of the buffer chamber 15 and the top of the friction sleeve 17. A polyurethane buffer ring 19 is fixedly connected to the inner wall of the buffer chamber 15, and the polyurethane buffer ring 19 corresponds to the position of the friction sleeve 17. The bottom of the friction sleeve 17 is fixedly connected to the top of the connecting plate 7. The buffer chamber 15 provides installation space for the buffer assembly and limits the movement range of the friction sleeve 17. The guide port 16 ensures that the friction sleeve 17 moves axially to avoid offset and buffer failure. The friction sleeve 17 initially attenuates the impact force through friction energy dissipation. The hydraulic spring buffer 18 (buffer stroke 5-10mm) absorbs the remaining impact force through elastic deformation. The polyurethane buffer ring 19 (Shore hardness 50HA) further buffers the collision between the friction sleeve 17 and the buffer chamber 15, while reducing punching noise (noise reduced to below 60dB).

[0022] To provide a stable ionizing airflow for the static eliminator and ensure effective static elimination, such as... Figure 1 and 2 The power supply mechanism includes a fan 20, a dual-head branch pipe 21, an ion generation system 22, an ion monitoring system 23, and a filter cover 24. The fan 20 is fixedly connected to one end of the cavity of the base 1, and the dual-head branch pipe 21 is fixedly connected to the outlet of the fan 20. The ion generation system 22 is fixedly connected to the other end of the cavity of the base 1, and the ion monitoring system 23 is fixedly connected to the top of the ion generation system 22. The output ports of the ion generation system 22 and the ion monitoring system 23 are fixedly connected to the input port of the dual-head branch pipe 21. The air inlet of the blower 20 is threaded with a filter cover 24. The two ends of the double-ended branch pipe 21 are fixedly connected to the air inlets of the corresponding electrostatic eliminator plates 13. The blower 20 (air volume 100-200 m³ / h) provides a stable airflow to ensure continuous delivery of ion air. The double-ended branch pipe 21 achieves uniform airflow distribution. The airflow deviation of the electrostatic eliminator plates 13 at both ends is ≤5%, ensuring uniform electrostatic elimination in the die-cutting area. The ion generation system 22 generates ions with a concentration ≥1×10⁻⁶. 6 The system generates positive and negative ions per cm³, which can quickly neutralize static electricity on the material surface (static voltage drops to within ±10V), preventing the material from sticking to the cutting head. The ion monitoring system 23 monitors the ion concentration in real time, and automatically alarms when the concentration is below the threshold, ensuring stable static elimination effect. The filter cover 24 (filtration accuracy 5μm) filters dust and impurities in the air to prevent contamination of the SCF material.

[0023] To achieve precise material feeding and clamping, and to accommodate materials of different thicknesses, such as... Figure 1 and 2 As shown, both drive wheel assemblies 2 include U-shaped brackets 25. Rotating wheels 26 are rotatably connected between the two ends of the U-shaped brackets 25. A second hydraulic rod 27 is fixedly connected to the top of the U-shaped brackets 25. One end of the second hydraulic rod 27 passes through the top of the U-shaped brackets 25 and is fixedly connected to an electric drive wheel 28. The U-shaped brackets 25 provide stable support for the drive wheel assemblies to prevent deformation of the brackets during operation. The rotating wheel 26 and the electric drive wheel 28 are used to clamp the material. The rotation of the electric drive wheel 28 drives the material to be conveyed. The height of the electric drive wheel 28 can be adjusted by the second hydraulic rod 27 (adjustment range 0-10mm) to adapt to different SCF materials with a thickness of 0.1-2mm. The clamping force (adjustable 1-5N) can be flexibly adjusted according to the material characteristics to avoid material damage or slippage.

[0024] To ensure that the ion airflow evenly covers the die-cutting area and improve the efficiency of static elimination, such as Figure 1-3 As shown, the electrostatic eliminator air plates 13 at both ends are trapezoidal hollow plates, and multiple air outlets 29 are opened on the trapezoidal surface. The trapezoidal hollow plate structure makes the ion air evenly distributed in the air plate, avoiding insufficient local air volume. The multiple air outlets 29 (hole diameter 0.5-1mm, hole spacing 2-3mm) are densely arranged along the trapezoidal surface, and the air outlet angle is inclined at 30-45°, which can fully cover the contact area between the die-cutting blade 8 and the material.

[0025] To improve the durability and functionality of the various components of the device, such as Figure 1-3 As shown, the die-cutting blade 8 is coated with a nano-ceramic wear-resistant coating, the top of the vibration platform 11 is coated with a polytetrafluoroethylene (PTFE) anti-stick coating, and the inner wall of the static eliminator 13 and the wall of the air outlet 29 are coated with an epoxy-modified acrylic anti-static coating. The nano-ceramic wear-resistant coating (hardness ≥ 1500 HV) increases the wear resistance of the die-cutting blade by 5 times and extends its service life to over 50,000 cutting cycles. The PTFE anti-stick coating (surface energy ≤ 18 mN / m) prevents waste from sticking to the surface of the vibration platform 11. The epoxy-modified acrylic anti-static coating (surface resistance ≤ 1 × 10⁻⁶) further enhances the wear resistance of the die-cutting blade. 8 Ω) Prevents dust from adsorbing onto the inner wall of the static eliminator fan, avoids blockage of the air outlet 29, and ensures stable output of ion wind.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mobile phone SCF conductive shielding die-cutting device, comprising a base (1), characterized in that, The base (1) has drive wheel assemblies (2) fixedly connected to both ends of the top. The base (1) has a U-shaped support seat (3) and a U-shaped worktable (4) fixedly connected to the top. The U-shaped support seat (3) has a first hydraulic rod (5) fixedly connected to the top. A high-frequency punching drive device (6) is slidably connected between the inner walls of the two ends of the U-shaped support seat (3). One end of the first hydraulic rod (5) passes through the top of the U-shaped support seat (3) and is fixedly connected to the top of the high-frequency punching drive device (6). The bottom of the high-frequency punching drive device (6) is fixedly connected to a connecting plate (7) through a buffer mechanism. The bottom of the connecting plate (7) is fixedly connected to a die-cutting blade (8). Auxiliary rollers (9) are rotatably connected between the inner sidewalls of the left and right ends of the U-shaped workbench (4). A guide frame plate (10) is fixedly connected to the top of the U-shaped workbench (4) through an opening. A vibration platform (11) is fixedly connected between the guide frame plates (10). A vibration motor (12) is fixedly connected to the bottom of the cavity of the U-shaped workbench (4). The vibration end of the vibration motor (12) is fixedly connected to the bottom of the vibration platform (11). Static eliminator plates (13) are fixedly connected to the sidewalls of both ends of the connecting plate (7). A power supply mechanism is provided in the cavity of the base (1) and fixedly connected to the static eliminator plates (13) at both ends. A display controller (14) is fixedly connected to the sidewall of the base (1).

2. The mobile phone SCF conductive shielding die-cutting device according to claim 1, characterized in that, The buffer mechanism includes a buffer chamber (15), a guide port (16), a friction sleeve (17), a hydraulic spring buffer (18), and a polyurethane buffer ring (19). The high-frequency punching drive device (6) is fixedly connected to the buffer chamber (15). The bottom of the buffer chamber (15) is provided with a guide port (16), and the friction sleeve (17) is frictionally connected inside the chamber. The hydraulic spring buffer (18) is fixedly connected between the inner wall of the buffer chamber (15) and the top of the friction sleeve (17). The inner wall of the buffer chamber (15) is fixedly connected to the polyurethane buffer ring (19). The position of the polyurethane buffer ring (19) corresponds to that of the friction sleeve (17). The bottom of the friction sleeve (17) is fixedly connected to the top of the connecting plate (7).

3. The mobile phone SCF conductive shielding die-cutting device according to claim 1, characterized in that, The power supply mechanism includes a fan (20), a double-ended branch pipe (21), an ion generation system (22), an ion monitoring system (23), and a filter cover (24). The fan (20) is fixedly connected to one end of the cavity of the base (1). The double-ended branch pipe (21) is fixedly connected to the air outlet of the fan (20). The ion generation system (22) is fixedly connected to the other end of the cavity of the base (1). The ion monitoring system (23) is fixedly connected to the top of the ion generation system (22). The output ports of the ion generation system (22) and the ion monitoring system (23) are fixedly connected to the input port of the double-ended branch pipe (21). The air inlet of the fan (20) is threadedly connected to the filter cover (24). The two ends of the double-ended branch pipe (21) are fixedly connected to the air inlets of the corresponding static elimination air plates (13).

4. The mobile phone SCF conductive shielding die-cutting device according to claim 1, characterized in that, Both drive wheel assemblies (2) at both ends include U-shaped brackets (25), with rotating wheels (26) rotatably connected between the two ends of the U-shaped brackets (25), and a second hydraulic rod (27) fixedly connected to the top of the U-shaped brackets (25). One end of the second hydraulic rod (27) passes through the top of the U-shaped brackets (25) and is fixedly connected to an electric drive wheel (28).

5. The mobile phone SCF conductive shielding die-cutting device according to claim 1, characterized in that, The static eliminator air plates (13) at both ends are trapezoidal hollow plates, and the trapezoidal surface has multiple air outlet holes (29).

6. The mobile phone SCF conductive shielding die-cutting device according to claim 1, characterized in that, The blade surface of the die-cutting knife (8) is coated with a nano-ceramic wear-resistant coating, the top of the vibration platform (11) is coated with a polytetrafluoroethylene anti-stick coating, and the inner wall of the static elimination air plate (13) and the hole wall of the air outlet (29) are coated with an epoxy modified acrylate antistatic coating.

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