Slitting knife combination

Abstract

The utility model discloses a slitting knife combination which comprises an upper sharp knife and a lower knife assembly. The lower knife assembly comprises a first lower knife and a second lower knife, a gasket is arranged between the first lower knife and the second lower knife, and the upper sharp knife is assembled above the first lower knife and the second lower knife; all the components are easy to disassemble and replace, when a certain component is abraded or damaged, a user only needs to replace the corresponding component instead of replacing the whole slitting knife combination, and therefore the use cost and the maintenance difficulty are greatly reduced; the upper sharp knife is assembled above the first lower knife and the second lower knife, so that accurate alignment between the upper sharp knife and the lower knife assembly during cutting is guaranteed, and the cutting precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of positive electrode foil slitting, in particular to a slitting knife combination. Background Art

[0002] When the existing slitting knives are used to slit the positive electrode foil, the blades are worn too much, and the serrated edges will appear when the foil is slid. Due to the serrated edges, the edges of the positive electrode foil will become irregular, which may affect the performance of the battery, such as energy density and cycle life. At the same time, the serrated edges may also increase the internal resistance of the battery, reduce the efficiency of the battery, and thus reduce product quality. The serrated edge problem may cause material waste in the production process and increase production costs. If the serrated edge problem is serious, it may be necessary to stop the machine for adjustment or replace the equipment, further increasing production time and cost.

[0003] The existing slitting knives are not easy to replace the blades, and the blades are prone to wear during operation, resulting in serrated edges, which leads to low work efficiency and unstable product quality. Summary of the invention

[0004] In order to overcome the above defects in the prior art, a slitting knife combination is provided which is easy to install and disassemble, has high working efficiency and simple structure.

[0005] The technical solution of the utility model is as follows: a slitting knife combination, including an upper knife tip and a lower knife assembly; the lower knife assembly includes a first lower knife and a second lower knife, a gasket is provided between the first lower knife and the second lower knife, and the upper knife tip is assembled above the first lower knife and the second lower knife.

[0006] Preferably, the upper blade tip knife includes a blade body and blade tips provided at both ends of the blade body.

[0007] Preferably, the blade tip is two inclined surfaces symmetrical along the central axis of the blade body, and the angle formed by the two inclined surfaces is an acute angle.

[0008] Preferably, the gasket is mounted in the middle between the first lower knife and the second lower knife, and the length of the gasket is smaller than the length of the lower knife assembly.

[0009] Preferably, the lower knife assembly is provided with a gap, and the tip of the upper knife at one end is located in the middle of the gap.

[0010] Preferably, the blade tips at both ends of the upper blade tip knife have the same shape.

[0011] Preferably, the first lower knife and the second lower knife have the same shape, and the blades at both ends of the first lower knife are at right angles.

[0012] Preferably, the length of the blade tip is much smaller than the length of the blade body.

[0013] Preferably, the width of the gasket is smaller than the width of the blade body.

[0014] Preferably, the blade body and the blade tips provided at both ends of the blade body are an integrally formed structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] A slitting knife assembly, which consists of an upper knife tip and a lower knife assembly, makes it easy to disassemble and replace each component. When a component is worn or damaged, the user only needs to replace the corresponding component without replacing the entire slitting knife assembly, which greatly reduces the use cost and maintenance difficulty. The upper knife tip is assembled above the first lower knife and the second lower knife. This assembly method ensures the precise alignment between the upper knife tip and the lower knife assembly during cutting, thereby improving the cutting accuracy and efficiency.

[0017] Furthermore, the blade tips are symmetrically connected to both ends of the blade body. This symmetrical design simplifies the manufacturing and assembly process of the upper blade tip knife and improves production efficiency. At the same time, due to the symmetry of the structure, when one side of the blade tip is worn, the upper blade tip knife can be flipped over for use, thereby extending its service life.

[0018] Furthermore, the two symmetrical bevels along the central axis of the blade ensure the stability and balance of the blade tip during the cutting process. This symmetry allows the cutting force to be evenly distributed, reducing the risk of blade tip wear or breakage due to uneven force. The sharp angle design formed by the two bevels enhances the sharpness and cutting efficiency of the blade tip. The sharp angle design allows the blade tip to cut into the material more easily, reducing resistance during cutting, thereby increasing cutting speed.

[0019] Furthermore, the gasket is located in the middle between the first lower blade and the second lower blade, which ensures the stability and balance of the lower blade assembly in the overall structure. The gasket creates a small gap between the first lower blade and the second lower blade, so that the upper blade tip does not contact the lower blade assembly during assembly, reducing tool wear and extending tool life.

[0020] Furthermore, the presence of the gap allows the knife tip to be precisely assembled in the lower knife assembly, ensuring its stability and accuracy during operation. This design avoids deviation or shaking caused by improper assembly, helping to improve cutting accuracy and efficiency.

[0021] Furthermore, the blade tips at both ends of the upper blade tip knife have the same shape. In the case where the blade tip needs to be temporarily replaced or adjusted, the blade tip can be turned around for use to increase its service life.

[0022] Furthermore, the first lower knife and the second lower knife of the same shape ensure the structural symmetry and balance of the slitting knife combination; the right-angle blade ensures the structural stability and cutting accuracy of the slitting knife combination, and improves durability and use efficiency.

[0023] Furthermore, the length of the blade tip is shorter, and the torque generated during operation is relatively small, thereby reducing vibration or deviation caused by unbalanced torque, helping to ensure cutting accuracy and stability, and improving cutting quality.

[0024] Furthermore, the width of the gasket is smaller than the width of the blade, which ensures that the gasket can be accurately embedded in the gap between the first lower knife and the second lower knife without affecting the working area of ​​the blade; it helps to maintain the overall stability and cutting performance of the blade and prevent interference or obstruction caused by the gasket being too wide.

[0025] Furthermore, the one-piece structure ensures a firm connection between the blade and the tip, avoiding loosening or breakage caused by improper welding or assembly. This holistic design improves the overall strength and stability of the upper tip knife, allowing it to better withstand shock and vibration during cutting.

[0026] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a structural schematic diagram of a slitting knife assembly of the utility model;

[0029] Figure 2 This is a schematic diagram of the installation of a slitting knife assembly of the utility model;

[0030] The following are the descriptions of the reference numerals:

[0031] Upper blade tip knife 1, lower blade assembly 2, first lower blade 2-1, second lower blade 2-2, gasket 2-3, blade body 1-1, blade tip 1-2. DETAILED DESCRIPTION

[0032] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0033] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0034] like Figure 1 to Figure 2 As shown, a slitting knife assembly includes an upper knife tip 1 and a lower knife assembly 2; the lower knife assembly 2 is further subdivided into a first lower knife 2-1, a second lower knife 2-2, and a gasket 2-3 located therebetween. Such a design structure enables the entire slitting knife assembly to maintain stable cutting performance during operation, and the modular design of the slitting knife assembly makes it easy to disassemble and replace the various components. When a component is worn or damaged, the user only needs to replace the upper knife tip 1 without replacing the entire slitting knife assembly, which greatly reduces the cost of use and the difficulty of maintenance.

[0035] The upper blade tip knife 1 includes a blade body 1-1 and a tip 1-2. The blade body 1-1 and the blade tip 1-2 are an integrally formed structure. The integrally formed structure improves the overall strength and stability of the slitting knife combination, simplifies the manufacturing process, and improves production efficiency and cutting accuracy. The two blade tips 1-2 are symmetrically connected at both ends of the blade body 1-1. The blade tip 1-2 is the main cutting part, and its design fully considers cutting efficiency and durability. The cutting portion blade tip 1-2 is two inclined planes symmetrical along the central axis of the blade body 1-1. The angle formed by the two inclined planes is an acute angle. In this embodiment, the angle of the blade tip 1-2 is 30°. The acute angle design formed by the two inclined planes enhances the sharpness and cutting efficiency of the cutting portion blade tip. The acute angle design enables the blade tip to cut into the material more easily and reduces the resistance during the cutting process. The two blade tips 1-2 at both ends of the blade body 1-1 have the same shape. When one side of the blade tip is worn, the upper blade tip knife can be flipped over for use to extend its service life.

[0036] Furthermore, the length of the blade tip 1-2 is much shorter than the length of the blade body 1-1, which helps maintain the overall stability and balance of the upper blade tip knife 1. Since the blade tips 1-2 are shorter, the torque they generate during operation is relatively small, thereby reducing vibration or deviation caused by unbalanced torque.

[0037] The lower knife assembly 2 is provided with a gap for assembling the knife tip 1-2 at one end of the blade body 1-1. The gap is formed by assembling the gasket 2-3 between the first lower knife 2-1 and the second lower knife 2-2. The knife tip 1-2 is located in the middle of the gap, and the knife tip 1-2 does not contact the first lower knife 2-1 and the second lower knife 2-2, thereby reducing tool wear and extending the service life of the slitting knife. In addition, the width of the gasket 2-3 determines whether the knife tip 1-2 can be accurately embedded between the first lower knife 2-1 and the second lower knife 2-2 and does not contact the lower knife assembly 2. The width of the gasket 2-3 is smaller than the width of the blade body 1-1, which not only ensures the stability and cutting performance of the slitting knife assembly, but also makes the overall structure of the slitting knife assembly more compact and beautiful.

[0038] Furthermore, the first lower blade 2-1 and the second lower blade 2-2 of the same shape ensure the structural symmetry and balance of the slitting knife combination, and the blades at both ends of the first lower blade 2-1 are right angles. The right-angle design enhances its cutting ability and stability. The right-angle blade also has good wear resistance and durability. During a long cutting process, the right-angle blade can maintain its shape and sharpness and is not prone to wear or deformation. This extends the service life of the slitting knife combination and reduces maintenance costs.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A slitting knife assembly, characterized in that: The invention comprises an upper blade tip knife (1) and a lower blade assembly (2); the lower blade assembly (2) comprises a first lower blade (2-1) and a second lower blade (2-2); a gasket (2-3) is provided between the first lower blade (2-1) and the second lower blade (2-2); the upper blade tip knife (1) is mounted above the first lower blade (2-1) and the second lower blade (2-2); the lower blade assembly (2) is provided with a gap, and the blade tip (1-2) at one end of the upper blade tip knife (1) is located in the middle of the gap.

2. A slitting knife assembly according to claim 1, characterized in that: The upper blade tip knife (1) comprises a blade body (1-1) and blade tips (1-2) provided at both ends of the blade body (1-1).

3. A slitting knife assembly according to claim 2, characterized in that: The blade tip (1-2) is two inclined surfaces symmetrically arranged along the central axis of the blade body (1-1), and the angle formed by the two inclined surfaces is an acute angle.

4. A slitting knife assembly according to claim 1, characterized in that: The gasket (2-3) is assembled in the middle between the first lower knife (2-1) and the second lower knife (2-2), and the length of the gasket (2-3) is smaller than the length of the lower knife assembly (2).

5. A slitting knife assembly according to claim 2, characterized in that: The knife tips (1-2) provided at both ends of the upper knife tip knife (1) have the same shape.

6. A slitting knife assembly according to claim 1, characterized in that: The first lower knife (2-1) and the second lower knife (2-2) have the same shape, and the blades at both ends of the first lower knife (2-1) are at right angles.

7. A slitting knife assembly according to claim 2, characterized in that: The length of the blade tip (1-2) is much shorter than the length of the blade body (1-1).

8. The slitting knife assembly according to claim 2, characterized in that: The width of the gasket (2-3) is smaller than the width of the blade (1-1).

9. A slitting knife assembly according to claim 2, characterized in that: The blade body (1-1) and the blade tips (1-2) provided at both ends of the blade body (1-1) are an integrally formed structure.

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