A cutting knife cover device of a copper foil slitting machine

Abstract

The utility model discloses a copper foil slitting machine cutter cover device, including the upper cover, the upper cover axial butt -joint bottom, the axial one side of bottom's setting has the openwork, the bottom is by two half circle spliced cover butt -joint and is composed, the radial one side of upper cover and bottom's splicing department is provided with cutter outlet, the one side of upper cover to bottom's setting has at least two convex parts, the half circle spliced cover on with convex part corresponding position is provided with the female part, the convex part and female part are connected. The utility model can solve the current copper foil slitting machine cutter cover and cannot give attention to the technical problem of preventing copper scrap pollution, convenient operation and not influencing production efficiency simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of copper foil production equipment, specifically a cutting blade cover device for a copper foil slitting machine. Background Technology

[0002] In the copper foil production and processing process, the copper foil slitting machine is the main equipment for achieving fixed-width cutting of copper foil. The cutter cover device, as a key supporting component of the slitting machine, mainly functions to protect the cutting area, prevent copper wires and copper chips generated during the slitting process from splashing and contaminating the finished foil, and ensure the safety of operators.

[0003] Currently, the existing copper foil slitting machine cutter covers in the industry are mainly divided into three types: fully enclosed, semi-enclosed, and fully open. However, all three types have obvious defects and cannot meet the comprehensive requirements of actual production for pollution prevention, high convenience, and high stability. For semi-enclosed and fully open cutter covers, since they do not fully cover the cutting area, copper wires and copper shavings generated during the cutting process can easily splash from the unenclosed area, directly contaminating the finished foil below or around it, leading to an increased scrap rate of finished foil. At the same time, the splashed copper wires may also entangle equipment parts, increasing the risk of equipment failure. In addition, although the semi-enclosed or fully open structure can observe the cutter to a certain extent, it lacks an effective protective barrier, posing a safety hazard of operators accidentally touching the cutter.

[0004] While fully enclosed cutter covers can solve the problem of copper wire and copper shavings flying, their large overall size and complex assembly structure mean that multiple fixed parts need to be disassembled to open the cover when operations such as adjusting the cutter position accuracy, changing the cutter, or replacing the copper foil roll and pulling the copper foil to the cutter are required. The operation process is cumbersome and time-consuming, which seriously affects the production progress. Therefore, fully enclosed cutter covers have not been widely used in actual production.

[0005] In summary, the existing copper foil slitting machine cutter cover cannot simultaneously achieve the goals of preventing copper shavings contamination, ease of operation, and not affecting production efficiency. Therefore, a cutter cover device with a better structural design is needed to solve the technical problems of the existing technology and improve the quality and efficiency of copper foil slitting production. Utility Model Content

[0006] This utility model provides a cutting blade cover device for a copper foil slitting machine. It has a simple structure and can solve the technical problem that existing copper foil slitting machine cutting blade covers cannot simultaneously prevent copper shavings contamination, ensure ease of operation, and maintain production efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cutter cover device for a copper foil slitting machine, comprising an upper cover and a bottom cover axially connected to the upper cover. The bottom cover has a hollow portion on one axial side and is composed of two semi-circular spliced ​​covers joined together. A cutter extension opening is provided at the radial joint of the upper and bottom covers. At least two protrusions are provided on the side of the upper cover facing the bottom cover. An indentation is provided on the semi-circular spliced ​​cover at a position corresponding to the protrusions. The protrusions and indentations engage with each other. The axial connection of the upper and bottom covers forms a fully enclosed protective structure, allowing the cutter to operate only through the cutter extension opening. The cutting blade's working area is enclosed to the maximum extent, physically blocking the path of copper wire and copper shavings splashing during the slitting process, preventing them from contaminating the finished foil surface and reducing the scrap rate. The bottom cover adopts a two-piece semi-circular splicing cover design, which, together with the protrusions and concave parts of the top and bottom covers, achieves snap-fit ​​positioning. This allows for quick assembly and disassembly of the top and bottom covers without the need for complex fasteners, solving the problems of complex assembly and cumbersome blade changing and adjustment in traditional fully enclosed blade covers. Moreover, the multi-point positioning constraint formed by the snap-fit ​​of at least two protrusions and concave parts can limit the relative displacement of the top and bottom covers in the radial and circumferential directions, preventing the blade cover from shifting due to vibration during slitting machine operation and ensuring operational stability.

[0008] Preferably, the upper cover has an extension extending towards the bottom cover on the radial side opposite to the cutter protrusion. Two semi-circular splicing covers are located on both sides of the extension. The extension has a insertion hole, through which a plug is inserted. The plug is located on the axial outer side of the bottom cover. The plug passes through the insertion hole of the extension and acts on the axial outer side of the bottom cover, which can constrain the splicing state of the bottom cover and the docking state of the upper cover and the bottom cover in the axial direction, further improving the structural stability. The plug-in design of the plug can be operated without tools. Compared with bolts and other threaded fasteners, the disassembly and assembly speed is faster. It not only solves the problem of cumbersome assembly of traditional fully enclosed cutter covers, but is also more reliable than simple snap-fit.

[0009] Preferably, the insert is L-shaped, with a horizontal hand-held section and a vertical insertion section. The operator can easily insert and remove the insert by holding the horizontal section without the need for tools. Moreover, the horizontal section of the L-shaped structure can naturally abut against the outer surface of the extension after the insert is inserted into the insertion hole, forming an axial limit and preventing the insert from falling off along the insertion hole due to vibration of the slitting machine.

[0010] Preferably, the cutter protrusion is located on a flat surface on one radial side of the bottom cover and the top cover. The flat surface corresponds to the linear cutting trajectory of the cutter. The protrusion on the flat surface can be better adapted to the planar conveying direction of the copper foil, reducing the probability of copper chips leaking out from the gap between the protrusion and the cutter and the copper foil, and further reducing the risk of contamination of the finished foil.

[0011] Preferably, the upper and lower covers are made of stainless steel. During the copper foil slitting process, trace amounts of oil, moisture, or copper ions may come into contact with the copper foil. Stainless steel has excellent corrosion resistance, which can prevent the blade cover from being damaged by rust. At the same time, stainless steel has high strength, which can resist deformation caused by the vibration of the slitting machine and extend the service life of the device.

[0012] Preferably, the inner sidewalls of the top and bottom covers are provided with a wear-resistant coating. During the cutting process, the copper wires and copper shavings that splash will collide and rub against the inner sidewalls of the blade cover. The wear-resistant coating can significantly improve the wear resistance of the sidewalls, prevent the sidewalls from becoming dented or flaking due to long-term wear, reduce the frequency of component replacement, and lower maintenance costs.

[0013] Compared with the prior art, the beneficial effects of this utility model are: With a simple structure, the top and bottom covers are axially connected to form a fully enclosed protective structure. The cutting blade extends through the opening for operation, which can maximize the enclosure of the cutting blade's working area and physically block the splashing path of copper wires and copper shavings during the slitting process, preventing them from contaminating the finished foil surface and reducing the scrap rate. The bottom cover adopts a two-piece semi-circular splicing cover design, which, together with the protrusions and concave parts of the top and bottom covers, achieves snap-fit ​​positioning. The top and bottom covers can be quickly assembled and disassembled without complex fasteners, solving the problems of complex assembly and cumbersome blade changing and adjustment in traditional fully enclosed blade covers. Moreover, the multi-point positioning constraint formed by the snap-fit ​​of at least two protrusions and concave parts can limit the relative displacement of the top and bottom covers in the radial and circumferential directions, preventing the blade cover from shifting due to vibration during the operation of the slitting machine and ensuring operational stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram based on the present invention; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a three-dimensional structural diagram of the semi-circular splicing cover according to this utility model; Figure 4 This is a three-dimensional structural diagram of the top cover according to the present utility model.

[0015] Figure label: 1. Top cover; 11. Extension; 12. Insertion hole; 13. Protrusion; 2. Bottom cover; 21. Semi-circular spliced ​​cover; 22. Hollowed-out part; 23. Recessed part; 3. Insert block; 4. Cutting blade protrusion. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] This invention solves the technical problem that existing copper foil slitting machine cutter covers cannot simultaneously achieve the goals of preventing copper shavings contamination, ease of operation, and not affecting production efficiency. Figure 1-4 As shown, the following technical solution is provided: a cutter cover device for a copper foil slitting machine, including an upper cover 1 and a bottom cover 2 axially connected to the upper cover 1. The bottom cover 2 has a hollow portion 22 on one axial side and is composed of two semi-circular spliced ​​covers 21 joined together. A cutter protrusion 4 is provided at the joint on the radial side of the upper cover 1 and the bottom cover 2. At least two protrusions 13 are provided on the side of the upper cover 1 facing the bottom cover 2. An indentation 23 is provided on the semi-circular spliced ​​cover 21 at a position corresponding to the protrusions 13. The protrusions 13 and the indentations 23 are engaged. The upper cover 1 and the bottom cover 2 are axially connected to form a fully enclosed protective structure, with the cutter protrusion 4 providing protection only. The 4-piece cutting blade design maximizes the enclosure of the cutting blade's working area, physically blocking the splashing path of copper wires and copper shavings during the slitting process, preventing contamination of the finished foil surface and reducing the scrap rate. The bottom cover adopts a design of two semi-circular spliced ​​covers 21, which, together with the protrusions and concave parts of the top cover 1 and the bottom cover, achieves snap-fit ​​positioning. This allows for quick assembly and disassembly of the top cover and bottom cover without the need for complex fasteners, solving the problems of complex assembly and cumbersome blade adjustment in traditional fully enclosed blade covers. Moreover, the multi-point positioning constraint formed by the snap-fit ​​of at least two protrusions and concave parts can limit the relative displacement of the top cover and bottom cover in the radial and circumferential directions, preventing blade cover displacement caused by vibration during slitting machine operation and ensuring operational stability.

[0018] Specifically, the upper cover 1 and the bottom cover 2 are made of stainless steel. During the copper foil slitting process, trace amounts of oil, moisture, or copper ions may come into contact with the material. Stainless steel has excellent corrosion resistance, which can prevent the blade cover from being damaged by rust. At the same time, stainless steel has high strength, which can resist deformation caused by vibration of the slitting machine and extend the service life of the device. The upper cover 1 is cylindrical in shape, with an outer diameter of 150mm, an axial length of 50mm, and a wall thickness of 3mm. The radial section of the single semi-circular splicing cover 21 is semi-circular, with an axial length of 50mm and a wall thickness of 3mm. A stepped positioning structure is provided at the splicing point. The protrusion 13 and the concave part 23 are both part of the side wall of the upper cover 1 and the bottom cover 2, and the processing is very simple.

[0019] In this embodiment, an extension 11 extending towards the bottom cover 2 is provided on the radial side of the upper cover 1 opposite to the cutter protrusion 4. Two semi-circular splicing covers 21 are provided on both sides of the extension 11. An insertion hole 12 is provided on the extension 11, and an insertion block 3 passes through the insertion hole 12. The insertion block 3 is located on the axial outer side of the bottom cover 2. The insertion block 3 passes through the insertion hole 12 of the extension and acts on the axial outer side of the bottom cover, which can constrain the splicing state of the bottom cover 2 and the docking state of the upper cover and the bottom cover in the axial direction, further improving the structural stability. The plug-in design of the insertion block 3 can be operated without tools. Compared with bolts and other threaded fasteners, the disassembly and assembly speed is faster. It not only solves the problem of cumbersome assembly of traditional fully enclosed cutter covers, but is also more reliable than simple snap-fit. Specifically, the extension 11 is a rectangular plate structure integrally formed on the radial side of the upper cover 1, and the material is the same as that of the upper cover.

[0020] In this embodiment, the insert 3 is L-shaped, with a horizontal holding section and a vertical insertion section. The operator can easily insert and remove the insert by holding the horizontal section without tools. Furthermore, the horizontal section of the L-shape naturally abuts against the outer surface of the extension 11 after the insert is inserted into the socket, forming an axial limit and preventing the insert from falling off axially along the socket due to vibration of the slitting machine. During assembly, the horizontal holding section of the L-shaped insert 3 is grasped, the vertical insertion section is aligned with the socket 12 of the extension 11, and it is pushed axially until the horizontal holding section fully abuts against the outer surface of the extension. During disassembly, the horizontal holding section is grasped and pulled outwards. Even when the slitting machine is running at high speed, the horizontal holding section of the L-shaped insert will not shift due to airflow or vibration, ensuring reliable fixation.

[0021] In this embodiment, the cutter protrusion 4 is set on a flat surface on one radial side of the bottom cover 2 and the top cover 1. The flat surface corresponds to the linear cutting trajectory of the cutter. The protrusion on the flat surface can be better adapted to the planar conveying direction of the copper foil, reducing the probability of copper chips leaking out from the gap between the protrusion and the cutter and the copper foil, and further reducing the risk of contamination of the finished foil.

[0022] In this embodiment, the inner sidewalls of the upper cover 1 and the bottom cover 2 are provided with a wear-resistant coating. During the slitting process, the splashed copper wires and copper shavings will collide and rub against the inner sidewalls of the blade cover. The wear-resistant coating can significantly improve the wear resistance of the sidewalls, preventing the sidewalls from developing dents and flaking due to long-term wear, reducing the frequency of component replacement, and lowering maintenance costs. Specifically, the wear-resistant coating is made of tungsten carbide, with a coating thickness of 50μm, balancing wear resistance and coating toughness, avoiding cracking due to excessive thickness, and is prepared using a plasma spraying process.

[0023] As one specific implementation method in this embodiment: Step 1: Bottom cover assembly Take two semi-circular splicing covers 21, align their stepped butt joint structures, and splice them together to form a complete bottom cover 2, ensuring that the splicing gap is ≤0.5mm; The assembled bottom cover 2 is fixed to the cutter seat mounting bracket of the copper foil slitting machine with multiple bolts; Check the position of the cutout 22 on the axial end face of the bottom cover. The cutter extends into the cover through the cutout 22.

[0024] Step 2: Preparation of wear-resistant coating The inner sidewalls of the fixed bottom cover 2 and the top cover 1 to be assembled are sandblasted, and then the surface sand particles are blown away with compressed air. Place the top and bottom covers in a heating furnace and preheat to 200°C, then keep them warm for 30 minutes. A plasma spray gun was used to apply the tungsten carbide coating to ensure that the coating thickness reached 50μm. After spraying, apply epoxy resin sealant to the coating surface and let it cure at room temperature for 24 hours. After curing, wipe the surface with alcohol to remove any residual sealant.

[0025] Step 3: Assemble the top cover Hold the top cover 1 and align the two protrusions 13 on the lower end of the top cover with the two recesses 23 on the bottom cover 2, ensuring that the protrusions and recesses are coaxial.

[0026] Step 4: Insert assembly Take the L-shaped insert 3, pinch its horizontal hand section, and align the vertical insertion section with the insertion hole 12 of the extension 11. Push the longitudinal insertion section into the insertion hole until the transverse hand-held section fully abuts against the outer surface of the extension. At this point, the end of the longitudinal insertion section abuts against the axial end face of the bottom cover, thus completing the fixing of the insertion block.

[0027] Step 5: Tool Change and Maintenance Pinch the horizontal hand section of the L-shaped insert 3, apply outward pulling force, pull out the insert, separate the upper cover 1 and the bottom cover 2, and remove the upper cover 1; Disassemble the cutter and replace it with a new one; Then reassemble the top cover and insert block according to steps 3 and 4 to complete the tool change.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A cutting blade cover device for a copper foil slitting machine, characterized in that, Includes an upper cover (1), a bottom cover (2) axially connected to the upper cover (1), a hollow part (22) is provided on one axial side of the bottom cover (2), the bottom cover (2) is composed of two semi-circular splicing covers (21) joined together, a cutter protrusion (4) is provided at the splicing point on the radial side of the upper cover (1) and the bottom cover (2), at least two protrusions (13) are provided on the side of the upper cover (1) facing the bottom cover (2), and an inner concave part (23) is provided on the semi-circular splicing cover (21) at the position corresponding to the protrusions (13), and the protrusions (13) and the inner concave parts (23) are engaged.

2. The copper foil slitting machine cutter cover device according to claim 1, characterized in that: The upper cover (1) has an extension (11) extending toward the bottom cover (2) on the radial side opposite to the cutter protrusion (4). Two semi-circular spliced ​​covers (21) are provided on both sides of the extension (11). The extension (11) has a socket (12). A plug (3) passes through the socket (12). The plug (3) is located on the axial outer side of the bottom cover (2).

3. The copper foil slitting machine cutter cover device according to claim 2, characterized in that: The insert (3) is L-shaped.

4. The copper foil slitting machine cutter cover device according to claim 1, characterized in that: The cutter protrusion (4) is located on a flat surface on one radial side of the bottom cover (2) and the top cover (1).

5. The copper foil slitting machine cutter cover device according to claim 1, characterized in that: The top cover (1) and bottom cover (2) are made of stainless steel.

6. The copper foil slitting machine cutter cover device according to claim 1, characterized in that: The inner sidewalls of the upper cover (1) and the bottom cover (2) are provided with a wear-resistant coating.

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