A cutting device for cutting electrolytic copper foil finished product

Abstract

The utility model provides a cutting knife device that electrolytic copper foil finished product divides and cuts, including installation cylinder, the one end of installation cylinder is provided with the limit piece, the outside wall of installation cylinder is equipped with the cutter shaft, the outside wall of cutter shaft is connected with round blade, the outside wall of installation cylinder far from limit piece one end is provided with the limit cylinder, is used for to cutter shaft is tightly limited, round blade and limit cylinder between and round blade and limit piece between all are equipped with first spring, first spring is used in buffering the axial force that round blade suffered in the process of dividing and cutting, the utility model discloses a first spring is arranged between round blade and limit piece, limit cylinder, through the elastic deformation absorption dividing and cutting round blade suffered axial impact force, avoid the blade to incline because of rigid impact, reduce cutting edge burr, size uneven etc.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic aluminum foil cutting technology, specifically to a cutting device for slitting electrolytic copper foil finished products. Background Technology

[0002] Electrolytic aluminum foil slitting is a key upstream process in the manufacturing of aluminum electrolytic capacitors. It is mainly used to precisely slit the wide etched / formed aluminum foil master rolls into narrow width rolls as required by the customer.

[0003] In existing technologies, when slitting electrolytic aluminum foil, it is generally cut by a circular cutter. The circumferential blade design of the circular cutter enables it to form continuous rolling contact with the copper foil master roll, which can be adapted to high-speed slitting equipment and realize high-efficiency continuous production.

[0004] However, due to the thinness of the electrolytic copper foil, the blade may wobble during high-speed rotation, affecting the cutting accuracy. Furthermore, when cutting ultra-thin copper foil, the blade may be subjected to excessive instantaneous force in a localized area, causing the copper foil to tear. In severe cases, the cut copper foil may not meet the sales standards, resulting in material waste. Utility Model Content

[0005] In view of this, the present invention provides a cutting device for slitting finished electrolytic copper foil products. By setting a first spring between the circular blade and the limiting plate and the limiting cylinder, the axial impact force on the circular blade during slitting is absorbed by elastic deformation, so as to avoid the blade from deflecting due to rigid impact, reduce problems such as burrs and uneven size at the cutting edge, and ensure the slitting accuracy of copper foil.

[0006] To solve the above-mentioned technical problems, this utility model provides a cutting device for slitting electrolytic copper foil products, including a mounting cylinder, a limiting piece fixedly connected to the outer wall of one end of the mounting cylinder, a cutting shaft sleeved on the outer wall of the mounting cylinder, a circular blade fixedly connected to the outer wall of the cutting shaft, and the cutting shaft sleeved on the outer wall of the mounting cylinder from the end away from the limiting piece.

[0007] A limiting sleeve is provided on the outer wall of the mounting cylinder at the end away from the limiting plate. The limiting sleeve is connected to the outer wall of the mounting cylinder by a threaded connection and is used to tighten and limit the cutter shaft.

[0008] A first spring is fitted between the circular blade and the limiting cylinder, and between the circular blade and the limiting plate. The first spring is used to buffer the axial force on the circular blade during the cutting process.

[0009] The limiting cylinder has a mounting groove on the side facing the cutter shaft, and a second spring is fitted inside the mounting groove. The second spring is used to buffer the axial force on the cutter shaft during the cutting process.

[0010] Both the first spring and the second spring are set as annular springs, and the diameter of the annulus formed by the first spring is not greater than the diameter of the limiting cylinder.

[0011] A rubber pad is fixedly connected to the side of the limiting cylinder facing the cutter shaft to enhance the friction between the cutter shaft and the mounting cylinder.

[0012] The outer diameter of the first spring is not less than the gap width between the limiting plate and the circular blade, and the gap width between the circular blade and the limiting cylinder; the outer diameter of the second spring is not less than the width of the mounting groove.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. Axial force buffering and improved cutting accuracy: A first spring is set between the circular blade and the limiting plate and limiting cylinder. The axial impact force on the circular blade during cutting is absorbed by elastic deformation, which avoids the blade from deflecting due to rigid impact, reduces problems such as burrs and uneven size at the cutting edge, and ensures the cutting accuracy of copper foil.

[0015] 2. Two-way buffering and improved stability: The first spring, together with the second spring in the mounting groove of the limiting cylinder, acts directly on the end face of the cutter shaft, buffering the axial movement of the cutter shaft caused by the tension of the copper foil and the cutting resistance, avoiding wear caused by the rigid impact between the cutter shaft and the limiting cylinder, and further improving the operating stability of the device.

[0016] 3. Threaded connection enhances applicability and flexibility: The limiting sleeve is installed on the mounting sleeve through a threaded fit. It can be tightened and adjusted according to different specifications of circular blades and the length of the cutter shaft (such as slight deviations in cutter shafts produced by different manufacturers). It has strong adaptability, reduces blade offset caused by assembly errors, and facilitates disassembly and maintenance.

[0017] 4. Annular springs enhance buffering effect: Both the first and second springs adopt an annular structure, which can be directly sleeved on the cutter shaft, saving installation space. They also have a large contact area with the end face of the limiting plate, circular blade, and limiting cylinder, ensuring uniform axial force transmission and avoiding uneven buffering effect caused by spring offset.

[0018] 5. Matching outer diameter dimensions and improving stability: The outer diameter of the first spring is not less than the gap width between the limiting plate and the circular blade, and between the circular blade and the limiting cylinder. The outer diameter of the second spring is not less than the width of the mounting groove. This ensures that the springs tightly fill the gaps, prevents the springs from shifting or falling off during cutting, extends the service life of the springs, and reduces the risk of equipment failure.

[0019] 6. Rubber pads enhance friction and prevent cutter shaft slippage and vibration: Rubber pads are installed on the contact surfaces of the limiting cylinder and the cutter shaft. The high elasticity and coefficient of friction increase the contact pressure between the two, preventing the cutter shaft from slipping when rotating at high speed or under axial force, and ensuring the stability of the cutter shaft position. At the same time, the elastic buffer of the rubber pads can absorb mechanical vibration, reduce rigid impact of components, avoid eccentricity of the circular blade caused by vibration, and improve the dimensional accuracy and surface quality of the copper foil being cut. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of a partial component structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the other side of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model.

[0024] In the diagram: 101, mounting cylinder; 102, limiting plate; 103, cutter shaft; 104, circular blade;

[0025] 201. Limiting cylinder; 202. First spring;

[0026] 301. Mounting slot; 302. Second spring;

[0027] 401. Rubber pad. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0029] A cutting device for slitting finished electrolytic copper foil products, such as Figure 1 , 3As shown: It includes an installation cylinder 101, which is used to install on a slitting machine. A limiting piece 102 is fixedly connected to the outer wall of one side of the installation cylinder 101. A cutter shaft 103 is sleeved on the outer wall of the installation cylinder 101. The cutter shaft 103 is slidably connected to the outer wall of the installation cylinder 101 to facilitate quick installation and removal of the cutter shaft 103. The limiting piece 102 is used to block the cutter shaft 103. A circular blade 104 is fixedly connected to the outer wall of the cutter shaft 103. The circular blade 104 is installed on the rotating rod of the slitting machine through the cutter shaft 103 and rotates with the rotating rod. The cutter shaft 103 is sleeved on the outer wall of the installation cylinder 101 from the end away from the limiting piece 102.

[0030] A limiting sleeve 201 is provided on the outer wall of the mounting sleeve 101 away from the limiting plate 102. The limiting sleeve 201 is connected to the outer wall of the mounting sleeve 101 by a threaded connection (the limiting sleeve 201 can also be fixed to the mounting sleeve 101 by a pin passing through the mounting sleeve 101 and the limiting sleeve 201). It is used to tighten and limit the cutter shaft 103. The threaded connection of the limiting sleeve 201 can be adapted to different specifications of circular blades 104 and cutter shaft 103 (the length of the cutter shaft 103 may vary slightly due to different specifications and manufacturers, and can be adjusted according to the tightening of the thread to accommodate small deviations).

[0031] like Figure 1 , 2 As shown in Figure 3: A first spring 202 is sleeved between the circular blade 104 and the limiting cylinder 201, and between the circular blade 104 and the limiting piece 102. (Multiple first springs 202 can be set and evenly arranged in a ring along the axial direction of the limiting cylinder 201 between the circular blade 104 and the limiting cylinder 201, and between the circular blade 104 and the limiting piece 102.) The first spring 202 is used to buffer the axial force on the circular blade 104 during the cutting process.

[0032] When slitting copper foil, the circular blade 104 will generate axial force (force along the axis of the blade shaft 103) due to material resistance, cutting pressure, etc. The first spring 202 (located between the circular blade 104 and the limiting plate 102, and between the circular blade 104 and the limiting cylinder 201) absorbs this axial force through elastic deformation, avoiding the blade from directly bearing rigid impact, thereby reducing the possibility of the circular blade 104 deflection, reducing the cutting accuracy deviation caused by the deflection of the circular blade 104 (such as burrs on the edge of the copper foil, uneven size, etc.), and improving the stability of the slitting process.

[0033] The first spring 202 forms an axial constraint on the circular blade 104 through the preload (filling the gap during installation), so that it maintains a stable axial position between the limiting plate 102 and the limiting cylinder 201. That is, during high-speed rotation or long-term cutting, the elastic force of the spring can also counteract axial movement, avoid blade deviation, and ensure the dimensional accuracy and edge quality consistency of copper foil cutting.

[0034] like Figure 2 , 4 As shown: The first spring 202 is set as a ring spring. The first spring 202 adopts a ring structure and can be directly sleeved on the cutter shaft 103 without the need for additional complex structures. It can not only meet the buffer function, but also save installation space and facilitate disassembly and replacement (for example, when replacing the blade, the spring can be disassembled synchronously with the blade to reduce installation and debugging time).

[0035] The outer diameter of the first spring 202 is not less than the gap width between the limiting plate 102 and the circular blade 104, and the gap width between the circular blade 104 and the limiting cylinder 201. If the outer diameter of the first spring 202 is less than the gap width, the spring may not be able to completely fill the gap after installation, causing the spring to shift or tilt when axial force is applied, resulting in uneven buffering effect.

[0036] When the outer diameter is large enough, the spring can fit tightly against the end faces of the limiting plate 102, the circular blade 104 and the limiting cylinder 201, ensuring that during the cutting process, the axial impact force on the circular blade 104 can be evenly transmitted to the limiting structure through the spring, avoiding vibration or displacement caused by excessive local force, thereby improving the stability of the buffering effect.

[0037] When the outer diameter is not less than the gap width, the contact area between the end faces of the spring and the limiting plate 102, the circular blade 104, and the limiting cylinder 201 is larger, making it less prone to displacement after installation and resulting in stronger structural stability. This not only extends the service life of the spring but also reduces equipment failures caused by spring detachment, thus lowering maintenance costs.

[0038] like Figure 3 , 4 As shown: The limiting cylinder 201 has an installation groove 301 on the side facing the cutter shaft 103. A second spring 302 is sleeved in the installation groove 301. The second spring 302 is used to buffer the axial force on the cutter shaft 103 during the cutting process. The second spring 302 is also set as a ring spring.

[0039] During the slitting process, in addition to driving the circular blade 104 to rotate, the cutter shaft 103 may also have an axial displacement tendency due to copper foil tension, cutting resistance, etc. The second spring 302 in the mounting groove 301 acts directly on the end face of the cutter shaft 103. When the cutter shaft 103 is subjected to axial force, the second spring 302 absorbs energy through compression deformation, preventing the cutter shaft 103 from directly hitting the limiting cylinder 201 or the mounting cylinder 101, thereby reducing the axial movement of the cutter shaft 103.

[0040] The mounting groove 301 provides a fixed mounting space for the second spring 302. Its width matches the outer diameter of the second spring 302. The limiting function of the mounting groove 301 ensures that the second spring 302 is always compressed along the axial direction, ensuring that the buffer force is evenly transmitted along the axis of the cutter shaft 103, avoiding uneven force on the cutter shaft 103 caused by spring offset, and thus ensuring the cutting accuracy.

[0041] Without the second spring 302, the cutter shaft 103 would directly impact the limiting cylinder 201 under axial force, causing wear on the contact surface due to rigid impact. Long-term use may cause deformation of the inner hole of the limiting cylinder 201 or the end face of the cutter shaft 103, affecting the accuracy of the device.

[0042] The diameter of the ring formed by the first spring 202 is not greater than the diameter of the limiting cylinder 201, so as to prevent the first spring 202 from falling off from the limiting cylinder 201 during the process of limiting the circular blade 104.

[0043] like Figure 4 As shown: The outer diameter of the second spring 302 is not less than the width of the mounting groove 301, which allows it to be tightly installed in the mounting groove 301, avoiding radial swaying or falling off, ensuring uniform axial force buffering, improving structural stability, simplifying assembly, eliminating the need for additional fasteners, and ensuring effective spring compression stroke, fully absorbing axial force, and improving the accuracy and lifespan of the cutting device.

[0044] like Figure 4 As shown: A rubber pad 401 is fixedly connected to the side of the limiting cylinder 201 facing the cutter shaft 103. This pad enhances the friction between the cutter shaft 103 and the mounting cylinder 101. The rubber pad 401 has high elasticity and a high coefficient of friction. When the limiting cylinder 201 contacts the cutter shaft 103, it can increase the contact pressure between the two through compression deformation. This effectively prevents the cutter shaft 103 from sliding when rotating at high speed or under axial force, ensuring the relative position of the cutter shaft 103 and the mounting cylinder 101 is stable and avoiding deviations in cutting accuracy due to slippage.

[0045] During the slitting process, the high-speed rotation of the cutter shaft 103 is prone to vibration. The elastic buffering effect of the rubber pad 401 can absorb the mechanical vibration energy, reduce the rigid impact between the limit cylinder 201 and the cutter shaft 103, reduce the loosening or wear of parts caused by vibration, and thus improve the stability and reliability of the cutting device during operation.

[0046] The elastic deformation of the rubber pad 401 can fill the tiny assembly gap between the mounting cylinder 101 and the cutter shaft 103, avoiding the eccentricity of the circular blade 104 caused by the gap, and ensuring the dimensional accuracy and surface quality when cutting copper foil.

[0047] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A cutting device for slitting electrolytic copper foil finished products, comprising a mounting cylinder (101), a limiting piece (102) provided at one end of the mounting cylinder (101), a cutting shaft (103) sleeved on the outer side wall of the mounting cylinder (101), and a circular blade (104) connected to the outer side wall of the cutting shaft (103), characterized in that: A limiting sleeve (201) is provided on the outer wall of the end of the mounting sleeve (101) away from the limiting piece (102) for pressing and limiting the cutter shaft (103); A first spring (202) is sleeved between the circular blade (104) and the limiting cylinder (201) and between the circular blade (104) and the limiting piece (102). The first spring (202) is used to buffer the axial force on the circular blade (104) during the cutting process.

2. The cutting device for slitting electrolytic copper foil products as described in claim 1, characterized in that: The limiting cylinder (201) has an installation groove (301) on the side facing the cutter shaft (103). A second spring (302) is provided in the installation groove (301). The second spring (302) is used to buffer the axial force on the cutter shaft (103) during the cutting process.

3. The cutting device for slitting electrolytic copper foil products as described in claim 2, characterized in that: The limiting cylinder (201) is connected to the outer wall of the mounting cylinder (101) by a threaded connection.

4. The cutting device for slitting electrolytic copper foil products as described in claim 2, characterized in that: Both the first spring (202) and the second spring (302) are configured as ring springs.

5. The cutting device for slitting electrolytic copper foil products as described in claim 1, characterized in that: The limiting cylinder (201) is provided with a rubber pad (401) on the side facing the cutter shaft (103) to enhance the friction between the cutter shaft (103) and the mounting cylinder (101).

6. The cutting device for slitting electrolytic copper foil products as described in claim 4, characterized in that: The outer diameter of the first spring (202) is not less than the gap width between the limiting plate (102) and the circular blade (104), and the gap width between the circular blade (104) and the limiting cylinder (201); The outer diameter of the second spring (302) is not less than the width of the mounting groove (301).

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