Slitting tool and slitting device

Abstract

The utility model relates to a slitting tool and a slitting device. The slitting tool comprises a first cutter assembly and a second cutter assembly, the first cutter assembly comprises a first cutter shaft, a first adjusting spacer bush, a second adjusting spacer bush and a first cutter, the first adjusting spacer bush and the second adjusting spacer bush are sequentially arranged in the axial direction of the first cutter shaft and abut against each other, and the first adjusting spacer bush and the second adjusting spacer bush abut against each other through two spiral faces which are opposite in rotation direction and can be attached to each other; the second cutter assembly comprises a second cutter; the second adjusting spacer bush can rotate relative to the first adjusting spacer bush, and drives the first cutter to move in the axial direction of the first cutter shaft under the action of the first adjusting spacer bush so as to adjust the axial distance between the first cutter and the second cutter. The slitting tool and the slitting device have the advantage of being easy to operate.

Description

Technical Field

[0001] The present application relates to the field of slitting technology, and specifically to a slitting tool and a slitting device. Background Art

[0002] The slitting tool in a slitting device typically consists of an upper blade assembly and a lower blade assembly, which work together to cut a substrate of a certain width into multiple narrower strips. To ensure effective cutting, the relative positions of the upper and lower blades must be adjusted to adjust the axial spacing between them on the blade shaft. Traditional slitting tools typically adjust the axial spacing between the upper and lower blades by replacing upper blade washers of varying thicknesses, a complex and cumbersome method. Utility Model Content

[0003] Based on this, it is necessary to provide a slitting tool and a slitting device that are easy to operate to address the above problems.

[0004] A slitting tool, comprising:

[0005] The first cutting knife assembly includes a first cutting knife shaft, and a first adjusting spacer, a second adjusting spacer, and a first cutting knife arranged in sequence along the axial direction of the first cutting knife shaft and abutting against each other, wherein the first adjusting spacer and the second adjusting spacer abut against each other through two spiral surfaces with opposite rotation directions and capable of being fitted;

[0006] A second cutter assembly, comprising a second cutter;

[0007] The second adjusting sleeve can rotate relative to the first adjusting sleeve, and under the action of the first adjusting sleeve, drives the first cutter to move axially along the first cutter shaft to adjust the axial distance between the first cutter and the second cutter.

[0008] In some embodiments, the first cutter assembly further includes an elastic member, which is mounted on the first cutter shaft and is used to provide an elastic force that drives the first cutter, the second adjustment sleeve, and the first adjustment sleeve to abut against each other in sequence;

[0009] The second adjusting sleeve rotates relative to the first adjusting sleeve, and the first cutter moves axially along the first cutter shaft under the action of the elastic force to adjust the axial distance between the first cutter and the second cutter.

[0010] In some embodiments, the elastic member is a disc compression spring, and the elastic member is sleeved on the first blade shaft.

[0011] In some embodiments, the first cutter assembly further includes a mounting nut, which is disposed on a side of the first cutter facing away from the second adjustment sleeve, and the elastic member abuts between the first cutter and the mounting nut.

[0012] In some embodiments, the first cutter assembly includes a mounting nut and a first limiting spacer, the first limiting spacer and the mounting nut are arranged on the side of the first cutter facing away from the second adjustment spacer, and the mounting nut is away from the first cutter relative to the first limiting spacer, and the elastic member abuts between the first limiting spacer and the mounting nut.

[0013] In some embodiments, the first cutter assembly further includes a second limiting spacer, which is disposed on the first cutter shaft and abuts against a side of the first adjustment spacer facing away from the second adjustment spacer.

[0014] In some embodiments, a socket is provided on the peripheral side surface of at least one of the first adjusting sleeve and the second adjusting sleeve, and the socket is used for inserting an operating tool for rotating the first adjusting sleeve or the second adjusting sleeve.

[0015] In some embodiments, circumferential angle scale lines are provided on the circumferential side surfaces of both the first adjustment sleeve and the second adjustment sleeve.

[0016] In some embodiments, the second cutter assembly further includes a second cutter shaft, a third limiting spacer and a fourth limiting spacer, the second cutter, the third limiting spacer and the fourth limiting spacer are all arranged on the second cutter shaft, and the third limiting spacer and the fourth limiting spacer are used to jointly limit the second cutter.

[0017] A slitting device, comprising:

[0018] Tool holder; and

[0019] For the slitting tool as described in any one of the above embodiments, the first cutter assembly and the second cutter assembly are both installed on the tool holder.

[0020] In the above-mentioned slitting tool and slitting device, the first adjustment sleeve and the second adjustment sleeve are offset by two spiral surfaces with opposite rotation directions and can be fitted together. Therefore, when the second adjustment sleeve rotates relative to the first adjustment sleeve, and a fixed position on the second spiral surface 141 continuously contacts a position on the first spiral surface 131 with a gradually increasing axial height, the total length of the first adjustment sleeve and the second adjustment sleeve in the axial direction of the first cutter shaft gradually increases, so that the second adjustment sleeve can drive the first cutter to move axially along the first cutter shaft under the action of the first adjustment sleeve, thereby adjusting the axial distance between the first cutter and the second cutter to adapt to different slitting requirements. Since this adjustment method does not require the disassembly and replacement of components on the first cutter assembly, the operation is simple and time-saving, the operation efficiency is high, and the manufacturing cost of the slitting tool is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of a slitting device in one embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of the cooperation between the first adjustment sleeve and the second adjustment sleeve when the slitting tool in one embodiment of the present application is in the initial state;

[0023] Figure 3 for Figure 2 A schematic structural diagram of the first adjusting spacer shown;

[0024] Figure 4 1 is a graph showing the relationship between the rotation angle of the second adjusting sleeve and the total length of the first adjusting sleeve and the second adjusting sleeve when the slitting tool in one embodiment of the present application is switched from the initial state to the adjustment state.

[0025] Figure Number:

[0026] 1000, slitting device;

[0027] 100, slitting tool; 200, tool holder;

[0028] 10. First cutter assembly; 20. Second cutter assembly;

[0029] 11. First blade shaft; 111. First shaft portion; 112. First stop portion; 12. First cutter; 13. First adjustment sleeve; 131. First helical surface; 132. First surface; 133. Insertion hole; 134. Circumferential angle scale; 14. Second adjustment sleeve; 141. Second helical surface; 142. Second surface; 15. Elastic member; 16. Mounting nut; 17. First stop sleeve; 18. Second stop sleeve;

[0030] 21. Second cutter shaft; 211. Second shaft portion; 212. Second limiting portion; 22. Second cutter; 23. Third limiting spacer; 24. Fourth limiting spacer; 25. Locking nut;

[0031] 210, bottom plate; 220, first knife seat; 230, second knife seat. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0036] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0038] See also Figure 1 The present application provides a slitting tool 100, which includes a first cutter assembly 10 and a second cutter assembly 20. The first cutter assembly 10 and the second cutter assembly 20 cooperate and are used to cut a substrate into strips of narrower width.

[0039] As an example, the substrate may be a pole piece, an isolation membrane or other materials, which may be selected according to production requirements.

[0040] As an example, the first cutter assembly 10 is either an upper cutter assembly or a lower cutter assembly, and the second cutter assembly 20 is either an upper cutter assembly or a lower cutter assembly. Specific settings can be made based on actual needs. For ease of explanation, the following embodiments are described using the example of the first cutter assembly 10 being the upper cutter assembly and the second cutter assembly 20 being the lower cutter assembly.

[0041] Please refer again Figure 1 , and also see Figure 2 and Figure 3The first cutter assembly 10 includes a first cutter shaft 11, and a first adjustment sleeve 13, a second adjustment sleeve 14, and a first cutter 12, which are arranged in sequence and abut against each other along the axial direction of the first cutter shaft 11. The first adjustment sleeve 13 and the second adjustment sleeve 14 abut against each other through two spiral surfaces with opposite rotation directions and can be fitted together. The second cutter assembly 20 includes a second cutter shaft 21 and a second cutter 22, and the second cutter 22 is disposed on the second cutter shaft 21. The second adjustment sleeve 14 can rotate relative to the first adjustment sleeve 13 and, under the action of the first adjustment sleeve 13, drives the first cutter 12 to move axially along the first cutter shaft 11 to adjust the axial distance between the first cutter 12 and the second cutter 22.

[0042] It can be understood that the axial distance between the first cutter 12 and the second cutter 22 is the distance between the first cutter 12 and the second cutter 22 in the axial direction of the first cutter shaft 11 .

[0043] The first cutter 12 is installed on the first cutter shaft 11, and usually the first cutter 12 is perpendicular to the first cutter shaft 11, the first cutter shaft 11 is parallel to the second cutter shaft 21, the second cutter 22 is installed on the second cutter shaft 21, and the second cutter 22 is perpendicular to the second cutter shaft 21, and the edges of the first cutter 12 and the second cutter 22 are set with a gap in the axial direction of the first cutter shaft 11 or are in close contact.

[0044] During slitting, if the substrate is suspended in mid-air, it is prone to shaking and unstable position, which will affect the final slitting effect. By providing a coordinated first cutter 12 and second cutter 22, the substrate is controlled between the first cutter 12 and the second cutter 22. The second cutter 22 supports the substrate while the first cutter 12 cuts the substrate. The interaction between the two cutters can achieve more stable and efficient slitting of the substrate.

[0045] As an example, at least the first cutter 12 is a circular cutter, and the first cutter 12 is sleeved on the first cutter shaft 11. The first cutter shaft 11 rotates, so that the first cutter 12 can continuously cut the substrate.

[0046] As an example, the first adjustment sleeve 13 and the second adjustment sleeve 14 are both installed on the first blade shaft 11 in a sleeve manner.

[0047] The helical surface on the first adjusting sleeve 13 is defined as a first helical surface 131 , and the helical surface on the second adjusting sleeve 14 is defined as a second helical surface 141 . The first helical surface 131 and the second helical surface 141 can fit together and have opposite rotation directions.

[0048] The first helical surface 131 has a first lowest position with the lowest axial height, a first highest position with the highest axial height, and a first intermediate position with an axial height between the first lowest position and the first highest position. The second helical surface 141 has a second lowest position with the lowest axial height, a second highest position with the highest axial height, and a second intermediate position with an axial height between the second lowest position and the second highest position. All positions on the first helical surface 131 with an axial height between the first lowest position and the first highest position are referred to as first intermediate positions, and all positions on the second helical surface 141 with an axial height between the second lowest position and the second highest position are referred to as second intermediate positions.

[0049] The surface of the first adjusting sleeve 13 facing away from the first helical surface 131 is defined as the first surface 132, and the surface of the second adjusting sleeve 14 facing away from the second helical surface 141 is defined as the second surface 142. The axial height of a position on the first helical surface 131 refers to the distance between the position and the first surface 132 (specifically, Figure 2 The axial height of a position on the second helical surface 141 refers to the distance between the position and the second surface 142 (as shown in FIG. Figure 2 L2 in Figure 1).

[0050] The slitting tool 100 has an initial state and an adjustment state. When the slitting tool 100 is in the initial state, the second lowest position of the second helical surface 141 contacts the first highest position of the first helical surface 131, and the second highest position of the second helical surface 141 contacts the first lowest position of the first helical surface 131. At this time, the total length of the first adjustment sleeve 13 and the second adjustment sleeve 14 in the axial direction of the first blade shaft 11 (the total length of the distance between the first surface 132 and the second surface 142, i.e., Figure 2 When the slitting tool 100 is in the adjustment state, the second highest position of the second helical surface 141 contacts the first middle position or the first highest position of the first helical surface 131, and the second lowest position of the second helical surface 141 does not contact the first helical surface 131. When the second highest position of the second helical surface 141 contacts the first middle position of the first helical surface 131, the total length of the first adjusting spacer 13 and the second adjusting spacer 14 in the axial direction of the first blade shaft 11 increases. When the second highest position of the second helical surface 141 contacts the first highest position of the first helical surface 131, the total length of the first adjusting spacer 13 and the second adjusting spacer 14 in the axial direction of the first blade shaft 11 is the largest.

[0051] In actual use, the slitting tool 100 can be switched back to the initial state after the axial spacing adjustment of the first cutter 12 and the second cutter 22 is completed, so that the slitting tool 100 starts from the initial state the next time the axial spacing adjustment of the first cutter 12 and the second cutter 22 is performed. Alternatively, the slitting tool 100 can retain its adjustment state after the axial spacing adjustment of the first cutter 12 and the second cutter 22 is completed, so that the slitting tool 100 starts from the last adjustment state of the slitting tool 100 the next time the axial spacing adjustment of the first cutter 12 and the second cutter 22 is performed.

[0052] The second adjustment sleeve 14 rotates relative to the first adjustment sleeve 13 to switch the state of the slitting tool 100. The second adjustment sleeve 14 can rotate relative to the first adjustment sleeve 13 by keeping the first adjustment sleeve 13 stationary while the second adjustment sleeve 14 rotates, or by keeping the first adjustment sleeve 13 stationary while the second adjustment sleeve 14 remains stationary. For ease of explanation, the following embodiments are described using the example of the first adjustment sleeve 13 being stationary while the second adjustment sleeve 14 rotates.

[0053] The first adjusting sleeve 13 and the second adjusting sleeve 14 are offset by two spiral surfaces with opposite rotation directions and can be fitted together. Therefore, when the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13, and a fixed position on the second spiral surface 141 (for example, the second highest position) continuously contacts a position on the first spiral surface 131 with a gradually increasing axial height, the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 in the axial direction of the first blade shaft 11 gradually increases, so that the second adjusting sleeve 14 can drive the first cutter 12 to move axially along the first blade shaft 11 under the action of the first adjusting sleeve 13, thereby achieving adjustment of the axial spacing between the first cutter 12 and the second cutter 22 to adapt to different slitting requirements. Since this adjustment method does not require disassembly and replacement of components on the first cutter assembly 10, the operation is simple and time-saving, the operation efficiency is high, and the manufacturing cost of the slitting tool 100 is low. Furthermore, the use of two helical surfaces with opposite rotation directions to adjust the axial spacing between the first cutter 12 and the second cutter 22 provides high adjustment precision and good stability, effectively improving slitting quality and extending the life of the slitting tool 100. Furthermore, the small helix angle allows for self-locking, preventing spontaneous rotation during use and providing excellent reliability.

[0054] For example, when the substrate is a pole piece, the axial distance between the first cutter 12 and the second cutter 22 needs to be adjusted according to different pole pieces during the slitting process.

[0055] For example, using the slitting tool 100 to slit the uncoated area of ​​the electrode, the first cutter 12 and the second cutter 22 are typically cut in a close-cut manner. This is because the thickness of the current collector in the uncoated area is generally thin, ranging from 4.5 microns to 10 microns. If gap cutting is used for thinner current collectors, the current collector will not be cut continuously and defects such as wavy edges may occur.

[0056] It is understood that the first cutter 12 and the second cutter 22 cut against each other, which means that the first cutter 12 and the second cutter 22 cut with an axial distance of zero. The first cutter 12 and the second cutter 22 cut with a gap, which means that the first cutter 12 and the second cutter 22 cut with an axial distance greater than zero.

[0057] For example, when using the slitting tool 100 to slit the coating area of ​​a pole piece, the first cutter 12 and the second cutter 22 typically use a gap cut method for slitting. This is because the coating area is typically thick, ranging from 100 to 300 microns. Using a gap cut reduces the pressure exerted by the first and second cutters 12 and 22 on the coating area, thereby reducing the risk of powder loss from the coating area, current collector breakage in the coating area, and current collector deviation in the coating area.

[0058] In addition, depending on the thickness, moisture content, formula, etc. of the incoming electrode, the axial spacing between the first cutter 12 and the second cutter 22 needs to be adjusted according to actual conditions to ensure the best slitting quality.

[0059] In some optional embodiments, the first cutter assembly 10 further includes an elastic member 15, which is mounted on the first cutter shaft 11 and is used to provide an elastic force that drives the first cutter 12, the second adjustment sleeve 14 and the first adjustment sleeve 13 to abut against each other in sequence; the second adjustment sleeve 14 rotates relative to the first adjustment sleeve 13, and the first cutter 12 moves axially along the first cutter shaft 11 under the action of the elastic force to adjust the axial spacing between the first cutter 12 and the second cutter 22.

[0060] As an example, the elastic member 15 can be a torsion spring, a disc compression spring, etc. Taking the elastic member 15 as a disc compression spring as an example, the elastic member 15 is sleeved on the first blade shaft 11 to facilitate the installation of the elastic member 15.

[0061] When the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13 and drives the first cutter 12 to move along the axial direction of the first cutter shaft 11 under the action of the first adjusting sleeve 13, the rotation direction of the second adjusting sleeve 14 is the first circumferential direction of the first cutter shaft 11, and the second adjusting sleeve 14 drives the first cutter 12 to move along the first axial direction of the first cutter shaft 11 under the action of the first adjusting sleeve 13. Figure 1 For example, the first axis is the X direction from left to right. Figure 3For example, the first circumferential direction is the counterclockwise M direction.

[0062] When the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13 and the first cutter 12 moves along the axial direction of the first cutter shaft 11 under the action of the elastic force, the rotation direction of the second adjusting sleeve 14 is the second circumferential direction of the first cutter shaft 11, and the first cutter 12 moves along the second axial direction of the first cutter shaft 11 under the action of the elastic force. The first circumferential direction is opposite to the second circumferential direction, and the first axial direction is opposite to the second axial direction. Figure 1 For example, the second axis is the Y direction from right to left. Figure 3 For example, the second circumferential direction is the clockwise N direction.

[0063] When the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13 and drives the first cutter 12 to move axially along the first cutter shaft 11 under the action of the first adjusting sleeve 13, the total length between the first adjusting sleeve 13 and the second adjusting sleeve 14 gradually increases. When the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13 and the first cutter 12 moves axially along the first cutter shaft 11 under the action of the elastic member 15, the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 gradually decreases. Both of the above methods can achieve the adjustment of the axial spacing between the first cutter 12 and the second cutter 22.

[0064] by Figure 1 Taking the example of a case where the first cutter 12 is always located to the left of the second cutter 22, as the second adjusting sleeve 14 rotates along the first circumferential direction and, under the action of the first adjusting sleeve 13, drives the first cutter 12 along the first axial direction, the total length between the first adjusting sleeve 13 and the second adjusting sleeve 14 gradually increases. However, the first cutter 12 gradually approaches the second cutter 22, causing the axial spacing between the first and second cutters 12 to gradually decrease. During this process, the elastic member 15 compresses, and the elastic force further increases. When the second adjusting sleeve 14 rotates along the second circumferential direction and the first cutter 12 moves along the second axial direction of the first cutter shaft 11 under the action of the elastic member 15, the total length between the first and second adjusting sleeves 13 and 14 gradually decreases. However, the first cutter 12 gradually moves away from the second cutter 22, causing the axial spacing between the first and second cutters 12 to gradually increase. During this process, the elastic member 15 releases its elastic force, and the elastic force of the elastic member 15 gradually decreases.

[0065] Of course, in other embodiments, the first cutter 12 may also be always located to the right of the second cutter 22. In this embodiment, when the second adjusting sleeve 14 rotates along the first circumferential direction and, under the action of the first adjusting sleeve 13, drives the first cutter 12 to move along the first axial direction, the total length between the first adjusting sleeve 13 and the second adjusting sleeve 14 gradually increases, but the first cutter 12 gradually moves away from the second cutter 22, so that the axial spacing between the first cutter 12 and the second cutter 22 gradually increases. When the second adjusting sleeve 14 rotates along the second circumferential direction and, under the action of the elastic member 15, the first cutter 12 moves along the second axial direction of the first cutter shaft 11, the total length between the first adjusting sleeve 13 and the second adjusting sleeve 14 gradually decreases, but the first cutter 12 gradually approaches the second cutter 22, so that the axial spacing between the first cutter 12 and the second cutter 22 gradually decreases.

[0066] In the present application, by designing the elastic member 15, on the one hand, it can ensure that the first adjusting sleeve 13, the second adjusting sleeve 14 and the first cutter 12 can be closely placed in sequence, and the second adjusting sleeve 14 and the first cutter 12 have good movement stability and high adjustment accuracy, which is beneficial to improving the slitting quality; on the other hand, the elastic member 15 cooperates with the first adjusting sleeve 13 to drive the second adjusting sleeve 14 and the first cutter 12 to move synchronously, so as to realize the adjustment of the axial spacing between the first cutter 12 and the second cutter 22, with high adjustment flexibility, convenient adjustment and a wide range of applications.

[0067] In some optional embodiments, the first cutter assembly 10 further includes a mounting nut 16, which is disposed on a side of the first cutter 12 facing away from the second adjustment spacer 14, and the elastic member 15 abuts between the first cutter 12 and the mounting nut 16. Alternatively, the first cutter assembly 10 includes a mounting nut 16 and a first limiting spacer 17, the first limiting spacer 17 and the mounting nut 16 being disposed on a side of the first cutter 12 facing away from the second adjustment spacer 14, and the mounting nut 16 being away from the first cutter 12 relative to the first limiting spacer 17, and the elastic member 15 abuts between the first limiting spacer 17 and the mounting nut 16.

[0068] The mounting nut 16 is sleeved on the first cutter shaft 11, and the mounting nut 16 is screwed to the first cutter shaft 11 to limit the other components of the first cutter shaft 11 except the mounting nut 16 along the axial direction of the first cutter shaft 11. For example, the mounting nut 16 is screwed to the first cutter shaft 11 to limit the first adjusting sleeve 13, the second adjusting sleeve 14, the first cutter 12, the first limiting spacer 17 and the elastic member 15 along the axial direction of the first cutter shaft 11, so that the first adjusting sleeve 13, the second adjusting sleeve 14, the first cutter 12, the first limiting spacer 17 and the elastic member 15 can be in close contact in sequence, thereby improving the accuracy of the axial spacing adjustment between the first cutter 12 and the second cutter 22.

[0069] In some optional embodiments, the first cutter assembly 10 further includes a second limiting spacer 18 , which is mounted on the first cutter shaft 11 and abuts against a side of the first adjustment spacer 13 facing away from the second adjustment spacer 14 .

[0070] As an example, the first limiting spacer 17 and the second limiting spacer 18 are sleeved on the first blade shaft 11 .

[0071] As an example, the first knife shaft 11 includes a first shaft portion 111 and a first limiting portion 112 arranged at one end of the first shaft portion 111 and protruding from the peripheral side of the first shaft portion 111, the second limiting sleeve 18, the first adjusting sleeve 13, the second adjusting sleeve 14, the first cutter 12, the first limiting sleeve 17, the elastic member 15 and the mounting nut 16 are arranged in sequence on the first shaft portion 111, and the second limiting sleeve 18 abuts against the first limiting portion 112, and the mounting nut 16 abuts against the elastic member 15 to limit the second limiting sleeve 18, the first adjusting sleeve 13, the second adjusting sleeve 14, the first cutter 12, the first limiting sleeve 17 and the elastic member 15 between the first limiting portion 112 and the mounting nut 16. When the position of the mounting nut 16 on the first shaft portion 111 changes, the closeness of the second limiting spacer 18, the first adjusting spacer 13, the second adjusting spacer 14, the first cutter 12, the first limiting spacer 17 and the elastic member 15 also changes accordingly.

[0072] In some optional embodiments, the second cutter assembly 20 further includes a third limiting spacer 23 and a fourth limiting spacer 24, both of which are disposed on the second cutter shaft 21, and the third limiting spacer 23 and the fourth limiting spacer 24 are used to jointly limit the second cutter 22 to prevent the second cutter 22 from sliding axially along the second cutter shaft 21.

[0073] As an example, the third limiting spacer 23 and the fourth limiting spacer 24 are sleeved on the second blade shaft 21 .

[0074] In some optional embodiments, the second cutter assembly 20 also includes a locking nut 25, which is arranged on the side of the fourth limiting spacer 24 facing away from the third limiting spacer 23. The locking nut 25 is threadedly connected to the second cutter shaft 21 to limit the third limiting spacer 23, the second cutter 22 and the fourth limiting spacer 24 along the axial direction of the second cutter shaft 21.

[0075] As an example, the second blade shaft 21 includes a second shaft portion 211 and a second limiting portion 212 provided at one end of the second shaft portion 211 and protruding from the peripheral side surface of the second shaft portion 211. The third limiting sleeve 23, the second cutter 22, the fourth limiting sleeve 24, and the locking nut 25 are sequentially arranged on the second shaft portion 211. The third limiting sleeve 23 abuts against the second limiting portion 212, and the locking nut 25 abuts against the fourth limiting sleeve 24, thereby limiting the third limiting sleeve 23, the second cutter 22, and the fourth limiting sleeve 24 between the second limiting portion 212 and the locking nut 25. When the position of the locking nut 25 on the second shaft portion 211 changes, the degree of contact between the third limiting sleeve 23, the second cutter 22, and the fourth limiting sleeve 24 also changes accordingly.

[0076] In some optional embodiments, a socket 133 is provided on the peripheral side of at least one of the first adjusting sleeve 13 and the second adjusting sleeve 14 , and the socket 133 is used for inserting an operating tool for rotating the first adjusting sleeve 13 or the second adjusting sleeve 14 .

[0077] Taking the example of the first adjusting sleeve 13 and the second adjusting sleeve 14 both having the insertion holes 133, during actual operation, two operating tools are respectively inserted into the insertion holes 133 of the first adjusting sleeve 13 and the second adjusting sleeve 14, and then one of the operating tools is used to fix the first adjusting sleeve 13, and then the second adjusting sleeve 14 is rotated by the operating tool to change the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14, thereby realizing the adjustment of the axial spacing between the first cutter 12 and the second cutter 22.

[0078] The provision of the jack 133 facilitates the operator to use an operating tool to rotate the first adjusting sleeve 13 or the second adjusting sleeve 14, thereby improving the simplicity of operation.

[0079] In some optional embodiments, a plurality of spaced-apart insertion holes 133 are formed on the circumferential side surfaces of the first and second adjustment spacers 13, 14. For example, when an operator rotates the second adjustment spacer 14, if the operator's operating tool and the second adjustment spacer 14 reach a certain angle where it is inconvenient for the operator to apply force, the operator can remove the operating tool from the original insertion hole 133 and insert it into another insertion hole 133 of the second adjustment spacer 14 to facilitate further rotation of the second adjustment spacer 14.

[0080] In some optional embodiments, circumferential angle scale lines 134 are provided on the circumferential side surfaces of both the first adjustment sleeve 13 and the second adjustment sleeve 14 .

[0081] For example, if the pitch of the helicoid is 0.6 mm, the total length change of the first adjustment sleeve 13 and the second adjustment sleeve 14 is also 0.6 mm. If 120 scale marks are evenly distributed on the circumferential side surfaces of the first adjustment sleeve 13 and the second adjustment sleeve 14, then when the first adjustment sleeve 13 or the second adjustment sleeve 14 rotates one scale mark, the total length change of the first adjustment sleeve 13 and the second adjustment sleeve 14 is 0.005 mm. When the first adjustment sleeve 13 or the second adjustment sleeve 14 rotates, the total length change of the first adjustment sleeve 13 and the second adjustment sleeve 14 can be calculated based on the number of scale marks the first adjustment sleeve 13 or the second adjustment sleeve rotates, thereby knowing the adjustment amount of the axial spacing between the first cutter 12 and the second cutter 22, which is convenient for users.

[0082] Combine Figure 4 When the slitting tool 100 is in the initial state, the total length of the first and second adjusting sleeves 13 and 14 is the smallest, at 12.19 mm. When the second adjusting sleeve 14 rotates one full circle relative to the first adjusting sleeve 13 along the first circumferential direction, i.e., the rotation angle reaches 360°, the total length of the first and second adjusting sleeves 13 and 14 reaches the largest, at 12.79 mm.

[0083] Please refer again Figures 1 to 3 The present application also provides a slitting device 1000 , which includes a tool holder 200 and a slitting tool 100 as described above, and the first cutter assembly 10 and the second cutter assembly 20 are both installed on the tool holder 200 .

[0084] As an example, the tool holder 200 includes a base plate 210, a first tool seat 220 and a second tool seat 230. The first tool seat 220 and the second tool seat 230 are arranged on the base plate 210. The first tool shaft 11 is installed on the first tool seat 220 to realize the installation of the first cutter assembly 10. The second tool shaft 21 is installed on the second tool seat 230 to realize the installation of the second cutter assembly 20.

[0085] In some embodiments, the slitting device 1000 also includes a first driving member and a second driving member. The first driving member is connected to the first blade shaft 11 and is used to drive the first blade shaft 11 to rotate. The second driving member is connected to the second blade shaft 21 and is used to drive the second blade shaft 21 to rotate, thereby achieving the purpose of rotating and cutting the substrate.

[0086] In the above-mentioned slitting tool 100 and slitting device 1000, the first adjusting sleeve 13 and the second adjusting sleeve 14 are offset by two spiral surfaces with opposite rotation directions and can be fitted. Therefore, when the second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13, and a fixed position on the second spiral surface 141 continuously contacts a position on the first spiral surface 131 with an axial height gradually increasing, the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 in the axial direction of the first blade shaft 11 gradually increases, so that the second adjusting sleeve 14 can drive the first cutter 12 to move axially along the first blade shaft 11 under the action of the first adjusting sleeve 13, thereby realizing the adjustment of the axial distance between the first cutter 12 and the second cutter 22 to adapt to different slitting requirements. Since this adjustment method does not require the disassembly and replacement of components on the first cutter assembly 10, the operation is simple and time-saving, the operation efficiency is high, and the manufacturing cost of the slitting tool 100 is low.

[0087] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A slitting tool, characterized in that: The slitting tool comprises: The first cutting knife assembly (10) comprises a first cutting knife shaft (11), and a first adjusting sleeve (13), a second adjusting sleeve (14) and a first cutting knife (12) arranged in sequence and abutting against each other along the axial direction of the first cutting knife shaft (11), wherein the first adjusting sleeve (13) and the second adjusting sleeve (14) abut against each other through two spiral surfaces with opposite rotation directions and capable of being fitted; A second cutter assembly (20) comprising a second cutter (22); The second adjusting sleeve (14) is capable of rotating relative to the first adjusting sleeve (13), and under the action of the first adjusting sleeve (13), drives the first cutter (12) to move axially along the first cutter shaft (11) to adjust the axial distance between the first cutter (12) and the second cutter (22).

2. The slitting tool according to claim 1, characterized in that: The first cutter assembly (10) further includes an elastic member (15), which is mounted on the first cutter shaft (11) and is used to provide an elastic force that drives the first cutter (12), the second adjustment sleeve (14) and the first adjustment sleeve (13) to abut against each other in sequence; The second adjustment sleeve (14) rotates relative to the first adjustment sleeve (13), and the first cutter (12) moves axially along the first cutter shaft (11) under the action of the elastic force to adjust the axial distance between the first cutter (12) and the second cutter (22).

3. The slitting tool according to claim 2, characterized in that: The elastic member (15) is a disc compression spring, and the elastic member (15) is sleeved on the first knife shaft (11).

4. The slitting tool according to claim 2, characterized in that: The first cutter assembly (10) further comprises a mounting nut (16), wherein the mounting nut (16) is arranged on a side of the first cutter (12) facing away from the second adjustment sleeve (14), and the elastic member (15) abuts between the first cutter (12) and the mounting nut (16).

5. The slitting tool according to claim 2, characterized in that: The first cutter assembly (10) includes a mounting nut (16) and a first limiting spacer (17). The first limiting spacer (17) and the mounting nut (16) are arranged on the side of the first cutter (12) facing away from the second adjustment spacer (14), and the mounting nut (16) is away from the first cutter (12) relative to the first limiting spacer (17). The elastic member (15) abuts between the first limiting spacer (17) and the mounting nut (16).

6. The slitting tool according to claim 1, characterized in that: The first cutter assembly (10) further comprises a second limiting spacer (18), which is arranged on the first cutter shaft (11) and abuts against a side of the first adjustment spacer (13) facing away from the second adjustment spacer (14).

7. The slitting tool according to claim 1, characterized in that: A socket (133) is provided on the peripheral side surface of at least one of the first adjusting sleeve (13) and the second adjusting sleeve (14), and the socket (133) is used for inserting an operating tool for rotating the first adjusting sleeve (13) or the second adjusting sleeve (14).

8. The slitting tool according to claim 1, characterized in that: Circumferential angle scale lines (134) are provided on the circumferential side surfaces of both the first adjustment sleeve (13) and the second adjustment sleeve (14).

9. The slitting tool according to claim 1, characterized in that: The second cutter assembly (20) further comprises a second cutter shaft (21), a third limiting spacer (23) and a fourth limiting spacer (24); the second cutter (22), the third limiting spacer (23) and the fourth limiting spacer (24) are all arranged on the second cutter shaft (21), and the third limiting spacer (23) and the fourth limiting spacer (24) are used to jointly limit the second cutter (22).

10. A slitting device, characterized in that: The slitting device comprises: a tool holder (200); and According to the slitting tool according to any one of claims 1 to 9, the first cutter assembly (10) and the second cutter assembly (20) are both mounted on the tool holder (200).

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