Slitting tool and slitting device

Abstract

The invention 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 in particular to a slitting tool and a slitting device. Background Art

[0002] The slitting tool in the slitting device generally includes an upper knife assembly and a lower knife assembly, which cooperate with each other and can cut a substrate with a certain width into multiple narrower strips. In order to ensure the cutting effect, it is necessary to adjust the relative position of the upper knife and the lower knife to adjust the axial distance between the upper knife and the lower knife on the knife shaft. In traditional slitting tools, the axial distance between the upper knife and the lower knife is usually adjusted by replacing the upper knife pad of different thicknesses, which is a more troublesome adjustment method. Summary of the invention

[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 comprises a first cutting knife shaft, and a first adjusting spacer, a second adjusting spacer and a first cutting knife which are sequentially arranged and abutted against each other along the axial direction of the first cutting knife shaft, 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 plug hole is provided on the peripheral side surface of at least one of the first adjusting spacer and the second adjusting spacer, and the plug hole is used for inserting an operating tool for rotating the first adjusting spacer or the second adjusting spacer.

[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 also 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 cutting knife assembly and the second cutting knife assembly are both installed on the knife holder.

[0020] In the above-mentioned slitting tool and slitting device, the first adjusting sleeve and the second adjusting sleeve are counteracted by two spiral surfaces with opposite rotation directions and can be fitted. Therefore, when the second adjusting sleeve rotates relative to the first adjusting sleeve, and a fixed position on the second spiral surface 141 is constantly in contact with a position on the first spiral surface 131 whose axial height gradually increases, the total length of the first adjusting sleeve and the second adjusting sleeve in the axial direction of the first knife shaft gradually increases, so that the second adjusting sleeve can drive the first cutter to move axially along the first knife shaft under the action of the first adjusting 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 It is a front view of a slitting device in one embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of the structure 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 This 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 an initial state to an 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 knife shaft; 111. first shaft portion; 112. first limit portion; 12. first cutter; 13. first adjustment sleeve; 131. first spiral surface; 132. first surface; 133. jack; 134. circular angle scale line; 14. second adjustment sleeve; 141. second spiral surface; 142. second surface; 15. elastic member; 16. mounting nut; 17. first limit sleeve; 18. second limit sleeve;

[0030] 21. second knife 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] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by 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 referred device or element 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature 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. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[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 slit 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 any one of the upper cutter assembly and the lower cutter assembly, and the second cutter assembly 20 is any one of the upper cutter assembly and the lower cutter assembly, which can be set specifically according to needs. For the convenience of description, the following embodiments are all described by taking the first cutter assembly 10 as the upper cutter assembly and the second cutter assembly 20 as the lower cutter assembly as an example.

[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 fit together. The second cutter assembly 20 includes a second cutter shaft 21 and a second cutter 22, and the second cutter 22 is arranged 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, the first cutter 12 is driven 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 gapped or tightly attached in the axial direction of the first cutter shaft 11.

[0044] During slitting, if the substrate is suspended in the air, it is easy to shake and the position is unstable, which will affect the final slitting effect. By setting the first cutter 12 and the second cutter 22 to cooperate, the substrate is controlled between the first cutter 12 and the second cutter 22, the second cutter 22 supports the substrate, and the first cutter 12 cuts the substrate. The interaction of the two cutters can make the substrate slitting more stable and efficient.

[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 rotates accordingly, 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 by sleeve arrangement.

[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. Among them, 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 L 1 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 L 2 shown).

[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 adjustment spacer 13 and the second adjustment spacer 14 in the axial direction of the first blade shaft 11 increases, and 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 adjustment spacer 13 and the second adjustment 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 when the axial spacing adjustment of the first cutter 12 and the second cutter 22 is performed next time. 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 when the axial spacing adjustment of the first cutter 12 and the second cutter 22 is performed next time.

[0052] The second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13 to switch the state of the slitting tool 100. The second adjusting sleeve 14 rotates relative to the first adjusting sleeve 13, which can be achieved by fixing the first adjusting sleeve 13 and rotating the second adjusting sleeve 14, or by rotating the first adjusting sleeve 13 and keeping the second adjusting sleeve 14 stationary. For the convenience of description, the following embodiments are described by taking the first adjusting sleeve 13 as stationary and the second adjusting sleeve 14 as rotating.

[0053] The first adjustment sleeve 13 and the second adjustment sleeve 14 are counteracted by two spiral surfaces with opposite rotation directions and can fit together. Therefore, when the second adjustment sleeve 14 rotates relative to the first adjustment sleeve 13, and a fixed position (for example, the second highest position) on the second spiral surface 141 is constantly in contact with a position on the first spiral surface 131 whose axial height gradually increases, 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 gradually increases, so that the second adjustment sleeve 14 can drive the first cutter 12 to move axially along the first blade shaft 11 under the action of the first adjustment sleeve 13, thereby realizing the 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 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. In addition, the method of adjusting the axial distance between the first cutter 12 and the second cutter 22 by using two helical surfaces with opposite rotation directions has high adjustment accuracy and good stability, which effectively improves the slitting quality and prolongs the life of the slitting tool 100. Moreover, since the helix angle is very small, it can achieve the purpose of self-locking, and will not rotate spontaneously during use, and has good 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 cutting process.

[0055] For example, taking the slitting tool 100 slitting the non-coating area of ​​the electrode as an example, the first slitting knife 12 and the second slitting knife 22 are generally cut by close cutting. This is because the thickness of the current collector in the non-coating area is usually thin, roughly in the range of 4.5 microns to 10 microns. If the thinner current collector is cut by gap cutting, the current collector will not be cut continuously and will easily have defects such as wavy edges.

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

[0057] For another example, taking the coating area of ​​the electrode sheet cut by the slitting tool 100 as an example, the first cutter 12 and the second cutter 22 are usually cut by gap cutting. This is because the coating area is usually thicker, roughly in the range of 100 microns to 300 microns, and the use of gap cutting will reduce the extrusion of the coating area by the first cutter 12 and the second cutter 22, thereby reducing the risk of powder falling off due to extrusion of the coating area, the breakage of the current collector in the coating area, and the current collector in the coating area leaning to one side.

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

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

[0064] by Figure 1 Taking the example that the first cutter 12 is always located on the left side of the second cutter 22, when the second adjusting sleeve 14 rotates along the first circumferential direction and the second adjusting sleeve 14 drives the first cutter 12 to move along the first axial direction 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, 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. In this process, the elastic member 15 is compressed and the elastic force is further increased. 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 adjusting sleeve 13 and the second adjusting sleeve 14 gradually decreases, 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. In this process, the elastic member 15 releases the 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 always be located on the right side of the second cutter 22. In this embodiment, when the second adjusting sleeve 14 rotates along the first circumferential direction and the second adjusting sleeve 14 drives the first cutter 12 to move along the first axial direction 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, 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 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 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 spacer 13, the second adjusting spacer 14 and the first cutter 12 can be closely attached to each other in sequence, and the second adjusting spacer 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 spacer 13 to drive the second adjusting spacer 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 sleeve 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 sleeve 17, the first limiting sleeve 17 and the mounting nut 16 are disposed on a side of the first cutter 12 facing away from the second adjustment sleeve 14, and the mounting nut 16 is away from the first cutter 12 relative to the first limiting sleeve 17, and the elastic member 15 abuts between the first limiting sleeve 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 threadedly connected to the first cutter shaft 11 to limit other components on 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 threadedly connected 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 sleeve 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 sleeve 17 and the elastic member 15 can be in close contact in sequence, thereby improving the accuracy of adjusting the axial spacing 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 cutting knife 12, the first limiting sleeve 17, the elastic member 15 and the mounting nut 16 are arranged on the first shaft portion 111 in sequence, and the second limiting sleeve 18 abuts against the first limiting portion 112, and the mounting nut 16 abuts against the elastic member 15, so as to limit the second limiting sleeve 18, the first adjusting sleeve 13, the second adjusting sleeve 14, the first cutting knife 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 cutting knife assembly 20 also includes a third limiting spacer 23 and a fourth limiting spacer 24, and the third limiting spacer 23 and the fourth limiting spacer 24 are both arranged on the second cutting knife shaft 21, and the third limiting spacer 23 and the fourth limiting spacer 24 are used to jointly limit the second cutting knife 22 to prevent the second cutting knife 22 from sliding axially along the second cutting knife 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 cutting knife 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, and the locking nut 25 is threadedly connected to the second knife shaft 21 to limit the third limiting spacer 23, the second cutting knife 22 and the fourth limiting spacer 24 along the axial direction of the second knife shaft 21.

[0075] As an example, the second knife shaft 21 includes a second shaft portion 211 and a second limiting portion 212 disposed 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 spacer 23, the second cutter 22, the fourth limiting spacer 24 and the locking nut 25 are sequentially arranged on the second shaft portion 211, and the third limiting spacer 23 abuts against the second limiting portion 212, and the locking nut 25 abuts against the fourth limiting spacer 24, so as to limit the third limiting spacer 23, the second cutter 22 and the fourth limiting spacer 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 close contact between the third limiting spacer 23, the second cutter 22 and the fourth limiting spacer 24 also changes accordingly.

[0076] In some optional embodiments, a plug hole 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 plug hole 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, in 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, so that the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 changes, 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 ease of operation.

[0079] In some optional embodiments, a plurality of spaced insertion holes 133 are provided on the peripheral side surfaces of the first adjustment sleeve 13 and the second adjustment sleeve 14. Taking the case where the operator operates the second adjustment sleeve 14 to rotate as an example, when the operator operates the operating tool and the second adjustment sleeve 14 to rotate to a certain angle and it is inconvenient for the operator to apply force, the operator can withdraw the operating tool from the original insertion hole 133 and insert the operating tool into other insertion holes 133 of the second adjustment sleeve 14 to facilitate the subsequent operation of the second adjustment sleeve 14 to continue rotating.

[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, taking the pitch of the spiral surface as 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 scales are evenly engraved on the circumferential side surfaces of the first adjustment sleeve 13 and the second adjustment sleeve 14, when the first adjustment sleeve 13 or the second adjustment sleeve 14 rotates one grid, 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 rotates, the total length change of the first adjustment sleeve 13 and the second adjustment sleeve 14 can be calculated by the number of grids rotated by the first adjustment sleeve or the second adjustment sleeve, so as to know the adjustment amount of the axial spacing between the first cutter 12 and the second cutter 22, which is convenient for users.

[0082] Combination Figure 4 When the slitting tool 100 is in the initial state, the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 is the smallest, which is 12.19 mm. When the second adjusting sleeve 14 rotates one circle along the first circumferential direction relative to the first adjusting sleeve 13, that is, the rotation angle is 360°, the total length of the first adjusting sleeve 13 and the second adjusting sleeve 14 reaches the maximum, which is 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 in any one of the above items, 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, and 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 counteracted 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 is constantly in contact with a position on the first spiral surface 131 whose axial height gradually increases, 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 spacing 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached 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) which are arranged in sequence and abut 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 adjustment sleeve (14) is capable of rotating 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).

2. The slitting tool according to claim 1, characterized in that: The first cutter assembly (10) further comprises an elastic member (15), wherein the elastic member (15) is mounted on the first cutter shaft (11) and is used to provide an elastic force for driving 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) comprises a mounting nut (16) and a first limiting spacer (17); the first limiting spacer (17) and the mounting nut (16) are arranged on a side of the first cutter (12) facing away from the second adjusting spacer (14); the mounting nut (16) is away from the first cutter (12) relative to the first limiting spacer (17); and the elastic member (15) is abutted between the first limiting spacer (17) and the mounting nut (16).

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

7. The slitting tool according to claim 1, characterized in that: A plug hole (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 plug hole (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 any one of claims 1 to 9 above, the first cutting knife assembly (10) and the second cutting knife assembly (20) are both mounted on the knife holder (200).

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