Slitting knife

Abstract

The utility model provides a slitting knife which comprises a knife assembly, a fixed shell and a locking assembly, the fixed shell is sleeved outside the knife assembly, the locking assembly is arranged on the fixed shell, the knife assembly extends out of the fixed shell and can rotate in the fixed shell, and the locking assembly is connected with other equipment. The bottom of the fixed shell is provided with a feed inspection opening used for observing feed, and the fixed shell is provided with an abrasion inspection opening used for observing the abrasion condition of the cutter assembly. The tool setting inspection opening is formed in the bottom of the fixed shell, a large area is reserved, an operator can conveniently observe whether tool setting is completed or not, and the tool setting device is safer and more reliable compared with the prior art. And a wear inspection opening is formed, so that the damage and use condition of the blade can be observed conveniently, the blade can be maintained or replaced in time, and the situation that materials needing to be cut are unevenly cut, and consequently the materials are wasted is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of coiled material slitting, in particular to a slitting knife. Background Art

[0002] Slitting knife is a common production machine in modern factory workshops. It is a device that cuts wide paper, mica tape or film into multiple narrow materials. It is mainly used for cutting base film materials, such as plastic film and paper materials.

[0003] The existing slitting knives require the staff to observe the blade closely to determine whether the blade is currently aligned, which is not safe enough. In most cases, the slitting knives need to be stopped and the blades removed to observe the damage of the blades. More often, the blades need to be replaced or repaired only when the material being cut is observed to be uneven, which easily leads to waste of cut materials and is not easy to replace or repair the blades in time. Summary of the invention

[0004] The utility model aims to solve the above problems and provides a pneumatic slitting knife with adjustable deflection angle.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a slitting knife, including a tool assembly, a fixed shell mounted outside the tool assembly, and a locking assembly arranged on the fixed shell, the tool assembly extends out of the fixed shell and can rotate within the fixed shell, and the locking assembly is connected to other equipment; a feed inspection port for observing the feed of the tool is opened at the bottom of the fixed shell, and a wear inspection port for observing the wear condition of the tool assembly is opened on the fixed shell.

[0006] More specifically, the tool feed inspection port is configured as an arc-shaped groove.

[0007] More specifically, the wear inspection port is configured as an arc hole.

[0008] More specifically, the distance between the inner arc of the circular arc hole and the rotation axis of the tool assembly is the same as the minimum use radius of the tool assembly.

[0009] More specifically, the bottom surface of the fixed shell is configured as an inclined surface.

[0010] More specifically, the inclination angle of the inclined surface is 8-10°.

[0011] More specifically, the locking assembly includes a locking bolt threaded on the fixed shell, an abutment block driven by the locking bolt, and a clamping block arranged on the fixed shell, the clamping block protrudes from the fixed shell, a clamping space is formed between the clamping block and the abutment block, and other equipment is arranged in the clamping space.

[0012] More specifically, one end of the abutment block can be rotatably fixed on the fixed housing, and the abutment block is driven by the locking bolt to swing around a fixed point.

[0013] More specifically, the tool assembly includes a tool holder connected to a fixed housing and a blade rotatably connected to the tool holder.

[0014] More specifically, the lowest point of the fixed shell is lower than the lowest point of the blade.

[0015] The utility model mainly solves the current problems of unsafe knife alignment and failure to timely know whether the blade is damaged or unusable by designing a slitting knife. By opening a knife alignment inspection port at the bottom of the fixed housing, a larger area is reserved for the operator to observe whether the knife alignment is completed, which is safer and more reliable than the existing technology. The wear inspection port is opened to facilitate observation of the damage and use of the blade, and timely repair or replacement of the blade is carried out to prevent uneven cutting of the material to be cut, resulting in waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application but not to limit the scope of the present application. In the attached drawings:

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a main structural schematic diagram of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the fixed housing and the locking assembly of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the tool assembly of the utility model;

[0021] In the figure: 1. fixed shell; 11. tool inspection port; 12. wear inspection port; 2. tool assembly; 21. tool holder; 22. blade; 3. locking assembly; 31. locking bolt; 32. abutment block; 4. air duct. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the technical scheme in the embodiment of the utility model will be described in more detail below in conjunction with the drawings in the embodiment of the utility model. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the utility model, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the utility model, and should not be understood as limitations on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model 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 cannot be understood as limiting the scope of protection of the present utility model. The embodiments of the present utility model are described in detail below in conjunction with the drawings.

[0024] It should be understood that the drawings are only used to illustrate the present application.

[0025] A slitting knife, such as Figure 1-Figure 4 As shown, it includes a tool assembly 2, a fixed shell 1 sleeved outside the tool assembly 2, and a locking assembly 3 arranged on the fixed shell 1.

[0026] like Figure 1 , Figure 2 as well as Figure 3 As shown, the fixed housing 1 is configured as a block structure with a placement cavity provided inside, and the tool assembly 2 is placed in the placement cavity.

[0027] like Figure 1 , Figure 2 as well as Figure 4 As shown, the tool assembly 2 includes a tool holder 21 connected to the fixed housing 1 and a blade 22 rotatably connected to the tool holder 21. The tool holder 21 is fixed to the fixed housing 1, and the blade 22 can rotate around the connection point with the tool holder 21 to cut the material. The blade 22 extends out of the fixed housing 1 for subsequent cutting.

[0028] like Figure 1 , Figure 2 as well as Figure 3As shown, in general, before cutting, the operator needs to perform knife alignment, but if the blade 22 is extended too much, the blade 22 will be easily damaged and there will be safety hazards to the operator. Therefore, the distance that the blade 22 extends out of the fixed housing 1 is short, which makes it difficult to align the blade, and there will be safety hazards if the operator is too close to the blade body. Therefore, a knife alignment inspection port 11 is provided at the bottom of the fixed housing 1 to facilitate observation of the blade 22. The knife alignment inspection port 11 can be provided at any position at the bottom of the fixed housing 1, as long as it is ensured that the observation area of ​​the blade 22 can be increased. It is best to be provided directly below the blade 22. The same inspection port is provided directly below the blade 22 to expose more blades 22, which is convenient for knife alignment. The knife alignment inspection port 11 is provided as an arc groove. However, the exposed area of ​​the blade 22 should not be too large, as long as it is convenient for the operator to align the blade. The smaller the exposed area of ​​the blade 22, the safer it is. In the present embodiment, the knife inspection port 11 is opened directly below the blade 22 on the fixed shell 1, and the knife inspection port 11 is opened on both sides of the fixed shell 1, that is, no matter which side of the slitting knife the operator is located, it is convenient to align the knife, and the knife inspection ports 11 opened on both sides of the fixed shell 1 have the same structure.

[0029] like Figure 1 , Figure 2 as well as Figure 3As shown, during the use of the tool, the blade 22 will be worn to varying degrees due to the scene or duration of use, and the blade 22 needs to be polished and repaired in time. When the wear of the blade 22 reaches a certain degree, the blade 22 needs to be replaced, otherwise it may cause the cutting surface of the cut object to be uneven, or it may be unable to cut, etc. Therefore, a wear inspection port 12 is opened on the fixed shell 1 to facilitate observation of the wear of the blade 22, timely replacement or repair, and reduce waste of the cut object. The wear inspection port 12 can be set at any position of the fixed shell 1, as long as the damage of the blade 22 can be observed. In this solution, the wear inspection port 12 is opened on the side of the fixed shell 1 away from the clamping with other components, to avoid opening the wear inspection port 12 on the side clamped with other components to reduce the strength of the fixed shell 1. The wear inspection port 12 is set as an arc hole, which is consistent with the curvature of the blade 22, so that the blade 22 can be better observed. The width of the wear inspection port 12 ensures that the outer arc can see the edge of the blade 22, and the distance between the inner arc and the rotation axis of the blade 22 is the same as the minimum use radius of the blade 22. That is, when the operator can see the blade 22 in the wear inspection port, it is convenient to observe the wear of the blade 22. When the operator cannot see the blade 22 or can only see the edge of the blade 22, the blade 22 needs to be replaced. The length of the wear inspection port 12 only needs to ensure that the operator can conveniently observe the damage of the blade 22. Wear inspection ports are set on both sides of the fixed shell 1, and the structures of the two wear inspection ports are the same.

[0030] like Figure 1 , Figure 2 as well as Figure 3 As shown, in general, the bottom of the fixed housing 1 is set as a plane, but if the bottom of the fixed housing 1 is set as a plane, in order to facilitate the knife setting, the blade 22 needs to be moved down to expose more area, which is unsafe. Therefore, setting the bottom of the fixed housing 1 as an inclined plane can ensure safety and beauty at the same time. The lowest point of the fixed housing 1 is lower than the lowest point of the blade 22, so that the fixed housing 1 can protect the operator on one side and perform knife setting on the other side, which is safer. The angle of the inclined plane can be set as needed. In this solution, the inclined plane is set to 8-10°.

[0031] like Figure 1 , Figure 2 as well as Figure 3As shown, the locking assembly 3 is arranged on one side of the fixed housing 1, and is used to connect with other devices when connected. The locking assembly 3 includes a locking bolt 31 screwed on the fixed housing 1, an abutment block 32 driven to move by the locking bolt 31, and a clamping block arranged on the fixed housing 1, wherein the clamping block protrudes from the fixed housing 1, and a clamping space is formed between the clamping block and the abutment block 32. A locking hole for setting the locking bolt 31 is provided on the fixed housing 1, and the locking hole is arranged obliquely to better contact with the abutment block 32, thereby ensuring reliable locking of other devices. A fixed shaft is provided on the fixed housing 1, and one end of the abutment block 32 is connected to the fixed shaft and can rotate around the fixed shaft. Driven by the locking bolt 31, the abutment block 32 rotates to the side close to or away from other devices, thereby clamping or loosening other devices. The clamping block is arranged on one side of the fixed shell 1 close to the locking assembly 3. When it is necessary to connect with other equipment, the other equipment is inserted into the clamping space, and the abutment block 32 is driven by the locking bolt 31. The abutment block 32 clamps the other equipment so that the slitting knife is connected to the other equipment.

[0032] like Figure 1 , Figure 2 as well as Figure 3 As shown, an air inlet is provided on the fixed housing 1 , and a detachable air guide pipe 4 is connected to the air inlet.

[0033] The utility model mainly solves the problem of unsafe knife alignment at present by designing a slitting knife. By providing a knife alignment inspection port 11 at the bottom of the fixed housing 1, a larger area is reserved for the operator to observe whether the knife alignment is completed, which is safer and more reliable than the prior art. A wear inspection port 12 is provided on the fixed housing 1 to facilitate the operator to check whether the blade 22 is damaged and whether the blade 22 needs to be replaced. The bottom surface of the fixed housing 1 is set as an inclined surface to ensure convenient knife alignment while minimizing the exposed area of ​​the blade 22. The abutment block 32 is set to be rotatable to better connect with other equipment.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0036] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A slitting knife, characterized in that: The invention comprises a tool assembly (2), a fixed shell (1) sleeved outside the tool assembly (2), and a locking assembly (3) arranged on the fixed shell (1); the tool assembly (2) extends out of the fixed shell (1) and can rotate inside the fixed shell (1); the locking assembly (3) is connected to other equipment; a tool inspection port (11) for observing the feed of the tool is provided at the bottom of the fixed shell (1); and a wear inspection port (12) for observing the wear of the tool assembly (2) is provided on the fixed shell (1).

2. The slitting knife according to claim 1, characterized in that: The tool inspection port (11) is configured as an arc-shaped groove.

3. The slitting knife according to claim 1, characterized in that: The wear inspection port (12) is configured as a circular arc hole.

4. The slitting knife according to claim 3, characterized in that: The distance between the inner arc of the circular arc hole and the rotation axis of the tool assembly (2) is the same as the minimum use radius of the tool assembly (2).

5. The slitting knife according to claim 1, characterized in that: The bottom surface of the fixed housing (1) is arranged as an inclined surface.

6. The slitting knife according to claim 5, characterized in that: The angle of the inclined surface is set to 8-10°.

7. The slitting knife according to claim 1, characterized in that: The locking assembly (3) comprises a locking bolt (31) connected to the fixed housing (1), an abutment block (32) driven by the locking bolt (31), and a clamping block arranged on the fixed housing (1); the clamping block protrudes from the fixed housing (1); a clamping space is formed between the clamping block and the abutment block (32); and other equipment is arranged in the clamping space.

8. The slitting knife according to claim 7, characterized in that: One end of the abutment block (32) is rotatably fixed on the fixed housing (1), and the abutment block (32) is driven by the locking bolt (31) to swing around a fixed point.

9. The slitting knife according to claim 1, characterized in that: The tool assembly (2) comprises a tool holder (21) connected to a fixed housing (1) and a blade (22) rotatably connected to the tool holder (21).

10. The slitting knife according to claim 9, characterized in that: The lowest point of the fixed housing (1) is lower than the lowest point of the blade.

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