Slitting knife mounting assembly and slitting device
By combining guide rails, outer sliders, inner sliders, and middle sliders, the problem of slitting blades not being able to be closely arranged on the guide rails is solved, enabling multiple slitting blades to slit simultaneously along a short slitting path, thus improving slitting accuracy and product yield.
Patent Information
- Application Number
- CN202423217633.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing slitting devices, the slitting blades cannot form a sufficiently small distance on the guide rail due to the large size of the slider, making it impossible to slit the film material simultaneously. Furthermore, sequential slitting can easily increase errors and affect product yield.
The design employs a combination structure of guide rail, outer slider, inner slider, and middle slider, which is fixed with bolts to achieve precise positioning and adjustment of the slitting blades, enabling the distance between adjacent slitting blades to reach zero. The design of "L"-shaped support arm and sliding hole ensures that the sliders do not interfere with the guide rail, allowing for a close arrangement of multiple slitting blades.
This technology enables multiple slitting blades to simultaneously slit thin film materials along a short slitting path, reducing errors and improving product yield.
Smart Images
Figure CN223685591U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a slitting device technical field, concretely relates to a slitting cutter installation subassembly and slitting device. BACKGROUND
[0002] When cutting thin film material, a slitting device needs to be used. The slitting device is generally fixed on a guide rail, the guide rail spans a machine table, and the thin film material is conveyed on the machine table along a preset direction. During the conveying of the thin film material, the blades of the slitting device will pass through the thin film material, thereby cutting the thin film material by the slitting device. In order to facilitate the adjustment of the width size of the cut thin film material according to actual needs, a sliding block is generally arranged on the guide rail, and the slitting cutter is fixedly installed on the sliding block. The sliding block can move along the extension direction of the guide rail and is fixed on the guide rail after being moved to a proper position, thereby realizing the adjustment of the position of the slitting cutter. However, if the two predetermined slitting routes on the thin film material are too close, the distance between the slitting cutters cannot be small enough even if the two sliding blocks are close to each other because of the large size of the sliding block. Therefore, the thin film material cannot be cut simultaneously, and if the thin film material is cut sequentially, errors are likely to be increased, thereby reducing the yield of products. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned defects or problems existing in the background art, and provides a slitting cutter installation subassembly and a slitting device. The slitting cutter installation subassembly can make the distance between the slitting cutters small enough, thereby realizing the simultaneous cutting of the thin film material by multiple slitting cutters at a short slitting path distance.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] Technical solution one: a slitting cutter installation subassembly, comprising: a guide rail extending along a first direction; an outer sliding block comprising a first outer arm and a second outer arm; the first outer arm extends along the first direction, and one end of the first outer arm is provided with an outer mounting portion for mounting a slitting cutter; the second outer arm extends along a second direction perpendicular to the first direction, and one end of the second outer arm is fixedly and slidably installed on the guide rail, and the other end of the second outer arm is connected to the end of the first outer arm away from the outer mounting portion; and an inner sliding block comprising an inner arm, the inner arm extending along the second direction, one end of the inner arm being fixedly and slidably installed on the guide rail, and the other end of the inner arm being provided with an inner mounting portion for mounting a slitting cutter; the size of the inner arm and the second outer arm in the second direction is configured to be suitable for placing the inner sliding block in the area formed by the outer sliding block and the guide rail, and the position of the outer mounting portion on the first outer arm and the size of the first outer arm in the first direction are configured to be suitable for aligning with the inner mounting portion in the second direction.
[0006] Technical solution two based on technical solution one: further comprising at least one intermediate slider; the intermediate slider comprises a first intermediate arm and a second intermediate arm; the first intermediate arm extends along a first direction, and one end of the first intermediate arm is provided with an intermediate mounting portion for mounting a slitting cutter; the second intermediate arm extends along a second direction, and one end of the second intermediate arm is fixedly and slidably mounted to the guide rail, and the other end of the second intermediate arm is connected to the first intermediate arm away from the intermediate mounting portion; the second intermediate arm of each intermediate slider is sequentially arranged in the first direction and located between the second outer arm of the outer slider and the inner arm of the inner slider; according to the direction in which each second intermediate arm gradually moves away from the second outer arm, the size of the second intermediate arm of each intermediate slider in the second direction gradually decreases, and the size of the first intermediate arm of each intermediate slider in the first direction gradually decreases, and the two are configured to allow the intermediate slider farther away from the second outer arm to be placed in the area formed by the second outer arm and the guide rail, and the intermediate slider adjacent to the second outer arm is adapted to be placed in the area formed by the outer slider and the guide rail, the intermediate slider adjacent to the inner slider is adapted to allow the inner slider to be placed in the area formed by the inner slider and the guide rail, and the position of each intermediate mounting portion on each first intermediate arm is adapted to be aligned with the outer mounting portion and the inner mounting portion in the second direction.
[0007] Technical solution three based on technical solution two: further comprising a first bolt; the outer slider, the intermediate slider and the inner slider are provided with a sliding hole penetrating along the first direction, and are provided with a first threaded hole penetrating to the sliding hole perpendicular to the sliding hole; the sliding hole is sleeved with the guide rail; the first bolt is threadedly connected with the first threaded hole, and is adapted to fix the outer slider, the intermediate slider and the inner slider to the guide rail by abutting against the guide rail.
[0008] Technical solution four based on technical solution three: further comprising a second bolt; the outer mounting portion, the intermediate mounting portion and the inner mounting portion are provided with a mounting hole penetrating along a third direction, and are provided with a second threaded hole penetrating to the mounting hole perpendicular to the mounting hole; the mounting hole is used for allowing the slitting cutter to pass through; the second bolt is threadedly connected with the second threaded hole, and is adapted to fix the slitting cutter to the outer slider, the inner slider and / or the intermediate slider by abutting against the slitting cutter; the third direction is perpendicular to the first direction and the second direction.
[0009] In addition, the utility model further provides technical solution five: a slitting device comprises at least two slitting cutters, and further comprises the slitting cutter mounting assembly according to any one of technical solutions one to four, and the slitting cutter is mounted on the slitting cutter mounting assembly.
[0010] From the above description of the utility model, the utility model has the following beneficial effects relative to the prior art:
[0011] The technical scheme one provides a slitting cutter mounting assembly, which comprises a guide rail, an outer sliding block and an inner sliding block, the outer sliding block and the inner sliding block are fixedly and slidably mounted on the guide rail, the positions of the outer sliding block and the inner sliding block can be adjusted by sliding and fixing on the guide rail; the outer sliding block comprises a first outer arm and a second outer arm, the first outer arm and the second outer arm form an L-shaped structure, and an outer mounting portion for mounting the slitting cutter is arranged on the first outer arm; an inner mounting portion for mounting the slitting cutter is arranged on an inner arm of the inner sliding block, and the inner arm and the second outer arm are sized to allow the inner sliding block to be placed into a region formed by the outer sliding block and the guide rail, so that the inner mounting portion of the inner arm and the outer mounting portion on the first outer arm can be aligned in a second direction; in this way, the inner mounting portion and the outer mounting portion can be staggered in the second direction, so that the distance between the slitting cutters mounted on the outer sliding block and the inner sliding block in the first direction can be 0, and when the positions of the outer sliding block and the inner sliding block are adjusted, the distance between the slitting cutters cannot be greater than 0 due to the interference between the sliding blocks, and the simultaneous slitting of the film material by multiple slitting cutters in a short slitting path distance can be realized.
[0012] In the technical scheme two, an intermediate sliding block is further arranged, the intermediate sliding block can form a nested structure between the outer sliding block and the inner sliding block, so that the slitting cutters can be closely arranged in the first direction.
[0013] In the technical scheme three, a first bolt is arranged, and sliding holes are arranged on the outer sliding block, the intermediate sliding block and the inner sliding block, the outer sliding block, the intermediate sliding block and the inner sliding block can be slidably mounted on the guide rail through the sliding holes, the first bolt can be screwed into a first threaded hole penetrating the sliding holes, and the outer sliding block, the intermediate sliding block and the inner sliding block can be fixed to the guide rail by abutting against the guide rail in the sliding holes; when the positions of the sliding blocks need to be adjusted, the first bolt can be loosened.
[0014] In the technical scheme four, a second bolt is arranged, and a mounting hole is arranged on the mounting portion of the sliding block, the mounting hole can be used for the slitting cutter to pass through, the second bolt can be screwed into a second threaded hole penetrating the mounting hole, and the slitting cutter can be fixed to the sliding block by abutting against the slitting cutter in the mounting hole; when the slitting cutter needs to be removed, the second bolt can be loosened.
[0015] The technical scheme five provides a slitting device, which comprises the slitting cutter mounting assembly and the slitting cutters mounted on the assembly, the position of the slitting cutter can be conveniently adjusted by the slitting cutter mounting assembly, and the distance between adjacent slitting cutters can be 0, so that the simultaneous slitting of the film material by multiple slitting cutters in a short slitting path distance can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the embodiment description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.
[0017] Figure 1 Structure diagram of the slitting knife mounting assembly Figure 1 ;
[0018] Figure 2 Structure diagram of the slitting knife mounting assembly Figure 2 ;
[0019] Figure 3 Structure diagram of the slitting knife mounting assembly Figure 3 .
[0020] Main figure mark explanation:
[0021] Guide rail 1; outer sliding block 2; first outer support arm 3; second outer support arm 4; outer mounting portion 5; inner sliding block 6; inner support arm 7; inner mounting portion 8; middle sliding block 9; first middle support arm 10; second middle support arm 11; middle mounting portion 12; first bolt 13; sliding hole 14; first threaded hole 15; mounting hole 16; second threaded hole 17. Specific implementation
[0022] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as excluding other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0023] In the claims, specification and above drawings of the present application, unless otherwise explicitly limited, the terms such as "first", "second" or "third" are used only to distinguish different objects, and are not used to describe a specific order.
[0024] In the claims, the specification, and the drawings of the instant utility model, unless otherwise expressly specified, words in the specification denoting orientation such as "central", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicate a relative orientation or position relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the instant utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so they cannot be understood as limiting the specific protection scope of the instant utility model.
[0025] In the claims, the specification, and the drawings of the instant utility model, unless otherwise expressly specified, the term "fixedly connected" or "fixedly connected" should be understood broadly, that is, any connection mode without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.
[0026] In the claims, the specification, and the drawings of the instant utility model, the terms "including", "having" and their variants are intended to mean "including but not limited to".
[0027] The utility model discloses a kind of splitting knife installation components and splitting device, the splitting device includes the splitting knife installation component and at least two splitting knives, two splitting knives are installed on the splitting knife installation component.
[0028] Referring to Figure 1 The splitting knife installation component includes guide rail 1, outer sliding block 2 and inner sliding block 6, and referring to Figure 3 The splitting knife installation component can further include intermediate sliding block 9.
[0029] Guide rail 1 is a long strip cylindrical member, and its two ends can be fixed on the machine table for splitting film material, and its extension direction is Figure 1 The first direction shown.
[0030] The outer slide block 2 comprises a first outer arm 3 and a second outer arm 4; the first outer arm 3 extends along a first direction, and one end of the first outer arm 3 is provided with an outer mounting portion 5 for mounting a slitting knife; the second outer arm 4 extends along a second direction perpendicular to the first direction, and one end of the second outer arm 4 is fixedly and slidably mounted to the guide rail 1, and the other end of the second outer arm 4 is connected to the first outer arm 3 away from the outer mounting portion 5; the inner slide block 6 comprises an inner arm 7, the inner arm 7 extends along the second direction, and one end of the inner arm 7 is fixedly and slidably mounted to the guide rail 1, and the other end of the inner arm 7 is provided with an inner mounting portion 8 for mounting a slitting knife; the sizes of the inner arm 7 and the second outer arm 4 in the second direction are configured to be suitable for placing the inner slide block 6 in a region formed by the outer slide block 2 and the guide rail 1, and the position of the outer mounting portion 5 on the first outer arm 3 and the size of the first outer arm 3 in the first direction are configured to be suitable for aligning with the inner mounting portion 8 in the second direction.
[0031] The number of intermediate slide blocks 9 is at least one, and each intermediate slide block 9 comprises a first intermediate arm 10 and a second intermediate arm 11; the first intermediate arm 10 extends along a first direction, and one end of the first intermediate arm 10 is provided with an intermediate mounting portion 12 for mounting a slitting knife; the second intermediate arm 11 extends along a second direction, and one end of the second intermediate arm 11 is fixedly and slidably mounted to the guide rail 1, and the other end of the second intermediate arm 11 is connected to the first intermediate arm 10 away from the intermediate mounting portion 12; the second intermediate arms 11 of the intermediate slide blocks 9 are arranged in sequence in the first direction and located between the second outer arm 4 of the outer slide block 2 and the inner arm 7 of the inner slide block 6; according to the direction of the second intermediate arms 11 gradually moving away from the second outer arm 4, the sizes of the second intermediate arms 11 of the intermediate slide blocks 9 in the second direction gradually decrease, and the sizes of the first intermediate arms 10 of the intermediate slide blocks 9 in the first direction gradually decrease, and both are configured to be suitable for placing one of the intermediate slide blocks 9 farther away from the second outer arm 4 in a region formed by the other intermediate slide block 9 closer to the second outer arm 4 and the guide rail 1, and the intermediate slide block 9 adjacent to the second outer arm 4 is suitable for being placed in a region formed by the outer slide block 2 and the guide rail 1, the intermediate slide block 9 adjacent to the inner slide block 6 is suitable for placing the inner slide block 6 in a region formed by the intermediate slide block 9 and the guide rail 1, and the positions of the intermediate mounting portions 12 on the first intermediate arms 10 are suitable for aligning with the outer mounting portion 5 and the inner mounting portion 8 in the second direction.
[0032] Furthermore, the slitting knife mounting assembly further comprises a first bolt 13; the outer slide block 2, the intermediate slide block 9 and the inner slide block 6 are provided with a sliding hole 14 penetrating along the first direction, and a first threaded hole 15 penetrating to the sliding hole 14 is provided perpendicularly to the sliding hole 14; the sliding hole 14 is sleeved and matched with the guide rail 1; the first bolt 13 is threadedly matched with the first threaded hole 15, and is suitable for fixing the outer slide block 2, the intermediate slide block 9 and the inner slide block 6 to the guide rail 1 by abutting against the guide rail 1.
[0033] Further, the slitting knife mounting assembly further comprises a second bolt; the outer mounting part 5, the intermediate mounting part 12 and the inner mounting part 8 are each provided with a mounting hole 16 penetrating in a third direction, and a second threaded hole 17 penetrating to the mounting hole 16 is provided perpendicularly to the mounting hole 16; the mounting hole 16 is used for the slitting knife to pass through; the second bolt is threadedly connected with the second threaded hole 17, and is adapted to fix the slitting knife to the outer sliding block 2, the inner sliding block 6 and / or the intermediate sliding block 9 by abutting against the slitting knife; the third direction is perpendicular to the first direction and the second direction.
[0034] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the outer sliding block 2, the intermediate sliding block 9 and the inner sliding block 6 are described respectively as follows. Figure 1 The first direction, the second direction and the third direction in
[0035] The outer sliding block 2 comprises a first outer arm 3 extending in the first direction and a second outer arm 4 extending in the second direction, wherein the second direction is perpendicular to the first direction. Referring to Figure 1 , the end of the second outer arm 4 is Figure 1 the upper end position of the second direction in Figure 3 , and the second outer arm 4 is provided with a sliding hole 14 penetrating in the first direction at the end position, the inner diameter of the sliding hole 14 is adapted to the outer diameter of the cylindrical guide rail 1, so that the outer sliding block 2 can be arranged on the guide rail 1 and can slide along the first direction on the guide rail 1. Referring to Figure 1 , along the third direction shown in , a first threaded hole 15 penetrating to the sliding hole 14 is further provided at the end position, where the first threaded hole 15 is tangent to the inner wall of the sliding hole 14, so that the inner wall of the sliding hole 14 forms an opening consistent with the inner diameter of the first threaded hole 15 at the tangent position. At the same time, the inner wall of the first threaded hole 15 is provided with internal threads, and the first bolt 13 is threadedly connected with the first threaded hole 15, and the first bolt 13 has a certain length. When it is needed to fix the outer sliding block 2 to the guide rail 1, the first bolt 13 is screwed to the first threaded hole 15, so that the end of the first bolt 13 is screwed into the first threaded hole 15 and exposed to the sliding hole 14, at this time the first bolt 13 is continued to be screwed, so that the end of the first bolt 13 abuts against the guide rail 1 and exerts force on the guide rail 1, thereby fixing the outer sliding block 2 on the guide rail 1. When it is needed to disassemble the outer sliding block 2 from the guide rail 1, the first bolt 13 is loosened, so that the end of the first bolt 13 is away from the guide rail 1.
[0036] At the other end of the second outer arm 4, referring to Figure 1 , the end is Figure 1At the lower end position in the second direction, on one side of the first direction at this end position, the aforementioned first outer support arm 3 extends. An outer mounting portion 5 is provided on the first outer support arm 3. In this embodiment, the outer mounting portion 5 is a mounting hole 16 extending along a third direction, through which the slitting blade can pass and be fixed to the outer slider 2. Referring to… Figure 3 A second threaded hole 17 is also provided along the first direction, extending through to the mounting hole 16. The inner wall of the second threaded hole 17 has internal threads. A second bolt (not shown in the figure) is threaded into the second threaded hole 17, and the second bolt has a certain length. When it is necessary to fix the slitting blade to the outer slider 2, the second bolt is screwed into the second threaded hole 17, so that the end of the second bolt is screwed into the second threaded hole 17 and protrudes into the mounting hole 16. Then, the second bolt is tightened further, so that the end of the second bolt abuts against the slitting blade and applies force to the slitting blade, thus fixing the slitting blade to the outer slider 2. When it is necessary to remove the slitting blade from the outer slider 2, the second bolt is loosened, so that the end of the second bolt is removed from the slitting blade.
[0037] The first outer support arm 3 and the second outer support arm 4 of the outer slider 2 cooperate to make the outer slider 2 in Figure 3 From the perspective shown, it is L-shaped, and after the outer slider 2 is installed on the guide rail 1, it also partially encloses the guide rail 1 to form an open area.
[0038] The inner slider 6 includes an inner support arm 7 extending along a second direction, the inner support arm 7 in Figure 1 The upper end of the second direction shown has a sliding hole 14 and a first threaded hole 15, identical to those of the outer slider 2, and can be slidably mounted on the guide rail 1 by means of the first bolt 13. Meanwhile, the inner support arm 7... Figure 1 An inner mounting part 8 is provided at the lower end of the second direction shown. The inner mounting part 8 is also a mounting hole 16 that passes through the third direction, and is provided with a second threaded hole 17 that passes through the mounting hole 16 in the first direction. The slitting blade can be fixed to the mounting hole 16 by the second bolt.
[0039] The size of the inner supporting arm 7 and the second outer supporting arm 4 in the second direction is matched, that is, the distance from the outer sliding block 2 to the edge of the guide rail 1 close to the first outer supporting arm 3 is matched with the distance from the guide rail 1 to the far end of the inner supporting arm 7 in the second direction, so that the inner sliding block 6 can be placed into the half-enclosed area of the outer sliding block 2 and the guide rail 1. In addition, the position of the mounting hole 16 on the first outer supporting arm 3 is matched with the position of the mounting hole 16 on the inner supporting arm 7 in the second direction, that is, when the inner sliding block 6 is placed into a certain position of the half-enclosed area of the outer sliding block 2 and the guide rail 1, the positions of the two mounting holes 16 are matched in the second direction, so that the positions of the blades of the slitting knives mounted on the outer sliding block 2 and the inner sliding block 6 can be matched in the second direction, and at this time, the slitting path distance of the two slitting knives in the first direction is 0. Figure 2 When it is necessary to increase the distance of the two slitting knives in the first direction, the inner sliding block 6 can be moved away from the half-enclosed area of the outer sliding block 2 and the guide rail 1, so as to increase the distance of the outer sliding block 2 and the inner sliding block 6 in the first direction.
[0040] Further, when it is necessary to add more slitting knives, a plurality of intermediate sliding blocks 9 can be arranged. Figure 3 The intermediate sliding block 9 is also approximately "L"-shaped, which can be nested with the outer sliding block 2 on the outer side and can be nested with the inner sliding block 6 on the inner side. The structure of the intermediate sliding block 9 is similar to that of the outer sliding block 2, and will not be described again.
[0041] The slitting knife mounting assembly comprises a guide rail 1, an outer sliding block 2 and an inner sliding block 6. The outer sliding block 2 and the inner sliding block 6 are fixedly and slidably installed on the guide rail 1, and the positions of the outer sliding block 2 and the inner sliding block 6 can be adjusted by sliding and fixing on the guide rail 1. The outer sliding block 2 comprises a first outer supporting arm 3 and a second outer supporting arm 4, which form an "L"-shaped structure, and an outer mounting part 5 for mounting a slitting knife is arranged on the first outer supporting arm 3. An inner mounting part 8 for mounting a slitting knife is arranged on an inner supporting arm 7 of the inner sliding block 6, and the sizes of the inner supporting arm 7 and the second outer supporting arm 4 are matched so that the inner sliding block 6 can be placed into a region formed by the outer sliding block 2 and the guide rail 1, so that the inner mounting part 8 of the inner supporting arm 7 and the outer mounting part 5 on the first outer supporting arm 3 can be matched in the second direction. In this way, the inner mounting part 8 and the outer mounting part 5 can be staggered in the second direction, so that the distance of the slitting knives mounted on the outer sliding block 2 and the inner sliding block 6 in the first direction can be 0, and when the positions of the outer sliding block 2 and the inner sliding block 6 are adjusted, the shortest distance of the slitting knives will not be greater than 0 due to the interference of the sizes of the sliding blocks, and the simultaneous slitting of the film material by multiple slitting knives with a short slitting path distance can be realized.
[0042] In addition, the slitting device disclosed by the embodiment of the present application comprises the slitting cutter mounting assembly and the slitting cutter mounted to the assembly, the position of the slitting cutter can be adjusted conveniently through the slitting cutter mounting assembly, the distance between the adjacent slitting cutters can reach 0, and the simultaneous slitting of the film material by the multiple slitting cutters under the short slitting path distance can be realized.
[0043] The above description and the embodiment are used for explaining the protection scope of the present application, but do not constitute the limitation to the protection scope of the present application. Through the inspiration of the present application or the above embodiment, the modification, the equivalent replacement or other improvement of the embodiment of the present application or one part of the technical features can be obtained by the logical analysis, the reasoning or the limited test of the ordinary skill in the art combined with the common knowledge, the ordinary technical knowledge in the art and / or the prior art, and should be included in the protection scope of the present application.
Claims
1. A slitter knife mounting assembly characterized by, The application comprises: a guide rail (1) extending in a first direction; an outer slide block (2) comprising a first outer arm (3) and a second outer arm (4); the first outer arm (3) extends in the first direction and has an outer mounting portion (5) at one end for mounting a slitting blade; the second outer arm (4) extends in a second direction perpendicular to the first direction and is fixedly and slidably mounted at one end to the guide rail (1) and connected at the other end to the first outer arm (3) away from the outer mounting portion (5); and an inner slide block (6) comprising an inner arm (7) extending in the second direction and having an inner mounting portion (8) at one end for mounting a slitting blade; the inner arm (7) and the second outer arm (4) are sized in the second direction to fit the inner slide block (6) into a region formed by the outer slide block (2) and the guide rail (1) and the position of the outer mounting portion (5) on the first outer arm (3) and the size of the first outer arm (3) in the first direction are configured to align with the inner mounting portion (8) in the second direction. The application further comprises at least one intermediate slide block (9); the intermediate slide block (9) comprises a first intermediate arm (10) and a second intermediate arm (11); the first intermediate arm (10) extends in the first direction and has an intermediate mounting portion (12) at one end for mounting a slitting blade; the second intermediate arm (11) extends in the second direction and is fixedly and slidably mounted at one end to the guide rail (1) and connected at the other end to the first intermediate arm (10) away from the intermediate mounting portion (12); 2. A slitter knife mounting assembly as claimed in claim 1 wherein, the second intermediate arms (11) of the intermediate slide blocks (9) are arranged in sequence in the first direction between the second outer arm (4) of the outer slide block (2) and the inner arm (7) of the inner slide block (6); the size of the second intermediate arms (11) of the intermediate slide blocks (9) in the second direction gradually decreases in the direction of the second intermediate arms (11) gradually moving away from the second outer arm (4) and the size of the first intermediate arms (10) of the intermediate slide blocks (9) in the first direction gradually decreases, both of which are configured to fit the intermediate slide block (9) farther away from the second outer arm (4) into the region formed by the intermediate slide block (9) closer to the second outer arm (4) and the guide rail (1), the intermediate slide block (9) adjacent to the second outer arm (4) is fitted into the region formed by the outer slide block (2) and the guide rail (1), the intermediate slide block (9) adjacent to the inner slide block (6) is fitted into the region formed by the inner slide block (6) and the guide rail (1), and the position of the intermediate mounting portion (12) on the first intermediate arm (10) is configured to align with the outer mounting portion (5) and the inner mounting portion (8) in the second direction. 3. A slitter knife mounting assembly as claimed in claim 2, wherein, Further comprising a first bolt (13); the outer slide block (2), the intermediate slide block (9) and the inner slide block (6) are provided with a sliding hole (14) penetrating in the first direction, and are provided with a first threaded hole (15) penetrating to the sliding hole (14) perpendicular to the sliding hole (14); the sliding hole (14) is sleeved with the guide rail (1); the first bolt (13) is threaded with the first threaded hole (15), and is adapted to fix the outer slide block (2), the intermediate slide block (9) and the inner slide block (6) to the guide rail (1) by abutting against the guide rail (1).
4. A slitter knife mounting assembly as claimed in claim 3 wherein, Further comprising a second bolt; the outer mounting portion (5), the intermediate mounting portion (12) and the inner mounting portion (8) are provided with a mounting hole (16) penetrating in the third direction, and are provided with a second threaded hole (17) penetrating to the mounting hole (16) perpendicular to the mounting hole (16); the mounting hole (16) is used for the slitting knife to pass through; the second bolt is threaded with the second threaded hole (17), and is adapted to fix the slitting knife to the outer slide block (2), the inner slide block (6) and / or the intermediate slide block (9) by abutting against the slitting knife; The third direction is perpendicular to the first direction and the second direction.
5. A slitting device comprising at least two slitting knives, characterized in that Further comprising the slitting knife mounting assembly according to any one of claims 1-4, and the slitting knife is mounted on the slitting knife mounting assembly.