An adjustable slitting knife, slitting knife roll and slitting device
The one-piece adjustable slitting blade solves the problem of the inability to adjust the slitting roller in the existing technology, and realizes the detachable connection between the slitting blade and the roller, which simplifies the structure and improves production efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUEHEXING LASER DIE (DONGGUAN) CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-14
AI Technical Summary
The existing slitting device has a fixed structure for the slitting blade and slitting roller, which cannot be adjusted. This means that when changing slitting blades of different widths, the entire slitting roller needs to be replaced, which is complex and inconvenient.
An adjustable slitting knife is provided, comprising an integrally formed mounting part, a cutting part, and an adjusting part. The inner diameter of the mounting part is adjusted by the adjusting part, thereby achieving a detachable connection between the knife body and the cutter roller, simplifying the structure and improving production accuracy.
It achieves a detachable connection between the slitting blade and the blade roller, which simplifies the structure, improves production efficiency and precision, and reduces the complexity of changing blades.
Smart Images
Figure CN224489354U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slitting device technology, and in particular to an adjustable slitting knife, a slitting roller and a slitting device. Background Technology
[0002] A slitting device is used to cut materials such as film and paper into multiple strips of narrow width. The slitting blades are the cutting components of the slitting device. By setting slitting blades with different spacing widths on the slitting blade roller, materials of different widths can be cut. Conventional slitting blades and slitting blade rollers are fixed, and the width between the slitting blades cannot be adjusted. Therefore, the entire slitting blade roller needs to be replaced to allow for the replacement of slitting blades of different widths.
[0003] Chinese patent CN201821338576.9 discloses a cutting device for a slitting machine, solving the problem of inconvenient disassembly and assembly of the cutting blade. The key technical points are: a cutting device for a slitting machine includes a blade holder sleeved on a slitting roller and an integrally formed mounting shaft section on the blade holder. The mounting shaft section is fitted with a cutting blade for slitting materials and a fixing plate connected to the cutting blade for fixing the cutting blade. The mounting shaft section has several circumferentially formed limiting blocks for abutting the fixing plate. The fixing plate has several circumferentially formed recessed grooves that fit the limiting blocks. The blade holder has a first threaded hole, and a first bolt for fastening the blade holder to the slitting roller is connected in the first threaded hole, achieving convenient installation and disassembly of the cutting device. However, the slitting blade structure in this solution is complex and needs improvement.
[0004] This invention overcomes the shortcomings of the prior art by providing an adjustable slitting knife, slitting roller, and slitting device. The slitting knife has a simpler structure and can be detachably connected to the slitting roller. Utility Model Content
[0005] The main objective of this utility model is to provide an adjustable slitting knife, including a blade body. The blade body includes an integrally formed mounting part and a cutting part. Both the mounting part and the cutting part are annular structures. The inner diameter of the mounting part is not greater than the inner diameter of the cutting part, and the outer diameter of the cutting part is greater than the outer diameter of the mounting part. The mounting part consists of a connecting part and an adjusting part. The connecting part is connected to the cutting part, and the adjusting part is connected to the connecting part. There is a gap between the adjusting part and the cutting part. The adjusting part adjusts the inner diameter of the mounting part.
[0006] Optionally, the mounting part is a cylindrical structure, and a circular cavity is provided in the middle of the mounting part, which passes through the front end face and the rear end face of the mounting part; the upper side of the mounting part is the adjustment part, and the lower side is the connecting part. The size of the circular cavity is adjusted by the adjustment part. The front end face of the connecting part is provided with the cutting part, and there is a gap between the front end face of the adjustment part and the cutting part.
[0007] Optionally, the adjusting part includes two symmetrically arranged semi-circular bodies. The first ends of the two semi-circular bodies are respectively connected to the first and last ends of the connecting part, and there is a gap between the last ends. The last end of the semi-circular body is provided with a threaded hole for installing a locking screw. The gap between the last ends of the two semi-circular bodies is reduced by locking with the locking screw.
[0008] Optionally, the adjustment part is split in the middle to form two semi-circular bodies, with the break point being the tail end of the semi-circular body.
[0009] This utility model also provides a slitting roller, including a plurality of the above-mentioned adjustable slitting blades, and a blade shaft, wherein the blade shaft is mounted with a plurality of the adjustable slitting blades, the inner diameter of the adjustable slitting blade mounting part is larger than the outer diameter of the blade shaft, and the adjustable slitting blade is fixed to the blade shaft by an adjustment part.
[0010] Optionally, the cutter shaft is provided with a scale, which is arranged parallel to the axial direction of the cutter shaft.
[0011] Optionally, the cutter shaft is connected to shafts on both sides, and the connecting shafts are fitted with bushings, the end faces of which are connected to the cutter shaft.
[0012] This utility model also provides a slitting device, including the above-mentioned slitting rollers, wherein there are two slitting rollers arranged in parallel, and the adjustable slitting blades of the two slitting rollers are spaced apart.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The adjustable slitting blade provided by this utility model has an integrally formed structure for the mounting part and the cutting part of the blade body. Compared with the existing separate structure, the structure of this solution is simpler and the production precision is higher. The mounting part is used to connect the blade body to the blade roller, the cutting part is used to cut the material, and the adjusting part is used to adjust the inner diameter of the mounting part to achieve a detachable connection between the blade body and the blade roller. Attached Figure Description
[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0016] Figure 1 This is a schematic diagram of an embodiment of the adjustable slitting blade of this utility model;
[0017] Figure 2 This is a cross-sectional view of an embodiment of the adjustable slitting blade of this utility model;
[0018] Figure 3 This is a schematic diagram of an embodiment of the slitting roller of this utility model;
[0019] Figure 4 This is a schematic diagram of the assembly of the cutter shaft and bushing in an embodiment of the slitting roller of this utility model;
[0020] Figure label:
[0021] 10-Adjustable slitting blade; 11-Blade body; 12-Mounting part; 121-Connecting part; 122-Adjusting part; 1221-Semi-arc body; 1222-Gap; 1223-Threaded hole; 13-Cutting part; 14-Gap; 20-Slitting blade roller; 21-Blade shaft; 22-Scale; 23-Connecting shaft; 24-Shaft sleeve. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.
[0023] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0024] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0025] like Figure 1-2 The diagram shown is a schematic representation of an embodiment of the adjustable slitting blade provided by this utility model.
[0026] Please refer to Figure 1-2 This embodiment includes a blade body 11, which comprises an integrally formed mounting portion 12 and a cutting portion 13. Both the mounting portion 12 and the cutting portion 13 are annular structures, with an inner cavity for the slitting roller 20 to pass through. The mounting portion 12 is used to connect to the slitting roller 20, and its inner diameter is not greater than that of the cutting portion 13 to avoid interference between the inner side of the cutting portion 13 and the slitting roller 20 when the mounting portion 12 is installed with the slitting roller 20. The cutting portion 13 is used to cut materials, and its outer diameter is greater than that of the mounting portion 12. The cutting portion 13 is slightly higher than the outer surface of the mounting portion 12, allowing it to contact and cut the materials without requiring a large width. Therefore, the strength requirements for the cutting portion 13 can be reduced.
[0027] The mounting part 12 is divided into a connecting part 121 and an adjusting part 122. The connecting part 121 is connected to the cutting part 13, and the adjusting part 122 is connected to the connecting part 121. The inner diameter of the connecting part 121 is a fixed size, while the inner diameter of the adjusting part 122 is a variable size. The inner diameter of the mounting part 12 is adjusted by the adjusting part 122 to achieve a detachable connection between the mounting part 12 and the slitting roller 20. A gap 14 is provided between the adjusting part 122 and the cutting part 13, which enables the adjusting part 122 to be movable.
[0028] Specifically, the mounting part 12 has a cylindrical structure, with a circular cavity in the middle that passes through the front and rear faces of the mounting part 12 to accommodate the slitting roller 20. The upper side of the mounting part 12 is an adjusting part 122, and the lower side is a connecting part 121. The size of the circular cavity is adjusted by the adjusting part 122. The front end face of the connecting part 121 has a cutting part 13, and there is a gap between the front end face of the adjusting part 122 and the cutting part 13. This integrated structure can be machined in one step using a lathe or milling machine. Compared to a split structure, this eliminates the assembly step and improves production efficiency.
[0029] Furthermore, the adjusting part 122 includes two symmetrically arranged semi-circular bodies 1221. The first ends of the two semi-circular bodies 1221 are respectively connected to the first and last ends of the connecting part 121. There is a gap 1222 between the last ends of the two semi-circular bodies 1221. The last end of the semi-circular body 1221 is provided with a threaded hole 1223 for installing a locking screw. By tightening the locking screw, the gap between the last ends of the two semi-circular bodies 1221 is reduced. Tightening the locking screw 1223 reduces the gap between the semi-circular bodies 1221, thereby reducing the inner diameter of the mounting part 12, and the blade body 11 is installed and locked to the slitting roller 20. After the locking screw 1223 is loosened, the gap between the semi-circular bodies 1221 returns to its original width, the inner diameter of the mounting part 12 increases, the blade body 11 can be separated from the slitting roller 20, and the installation position of the blade body 11 on the slitting roller 20 can be adjusted.
[0030] Specifically, the adjusting part 122 is split in the middle to form two semi-circular bodies 1221, with the break point being the tail end of the semi-circular body 1221. The mounting part 12 is divided into two halves, with the lower half being the connecting part 121 and the upper half being the adjusting part 122. The adjusting part 122 is split in the middle to form two semi-circular parts 1221, and each semi-circular part 1221 is a quarter-circle arc.
[0031] like Figure 3-4 As shown, this utility model also provides an embodiment of a slitting roller.
[0032] Please refer to Figure 3-4 This embodiment includes several of the aforementioned adjustable slitting blades 10, and also includes a blade shaft 21. The blade shaft 21 is equipped with multiple adjustable slitting blades 10. The inner diameter of the adjustable slitting blade 10 mounting part 12 is larger than the outer diameter of the blade shaft 21. The adjustable slitting blades 10 are fixed to the blade shaft 21 by the adjustment part 122.
[0033] In one embodiment, the cutter shaft 21 is provided with a scale 22, which is arranged parallel to the axial direction of the cutter shaft 21. The scale 22 can display the distance between the adjustable slitting blades 10 for easy adjustment.
[0034] In one embodiment, shafts 23 are connected to both sides of the cutter shaft 21, and bushings 24 are fitted onto the connecting shafts 23. The end faces of the bushings 24 are connected to both ends of the cutter shaft 21. The bushings 24 are used to connect the cutter shaft 21 to the slitting device.
[0035] This utility model also provides an embodiment of a slitting device, including the above-described embodiment of slitting rollers, wherein there are two slitting rollers arranged in parallel, and the adjustable slitting blades in the two slitting rollers are spaced apart to cut the material.
[0036] In summary, the embodiments provided by this utility model have an integrally formed structure for the mounting part and the cutting part constituting the blade body. Compared with the existing separate structure, the structure of this solution is simpler, can be formed in one step, and has higher production precision. The mounting part is used to connect the blade body to the blade roller, the cutting part is used to cut materials, and the adjusting part is used to adjust the inner diameter of the mounting part to achieve a detachable connection between the blade body and the blade roller.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An adjustable slitting blade, characterized in that, The device includes a blade body, which comprises an integrally formed mounting portion and a cutting portion. Both the mounting portion and the cutting portion are annular structures. The inner diameter of the mounting portion is not greater than the inner diameter of the cutting portion, and the outer diameter of the cutting portion is greater than the outer diameter of the mounting portion. The mounting portion consists of a connecting portion and an adjusting portion. The connecting portion is connected to the cutting portion, and the adjusting portion is connected to the connecting portion. There is a gap between the adjusting portion and the cutting portion, and the adjusting portion adjusts the inner diameter of the mounting portion.
2. The adjustable slitting blade according to claim 1, characterized in that, The mounting part is a cylindrical structure, and a circular cavity is provided in the middle of the mounting part, which passes through the front end face and the rear end face of the mounting part; the upper side of the mounting part is the adjustment part, and the lower side is the connecting part. The size of the circular cavity is adjusted by the adjustment part. The front end face of the connecting part is provided with the cutting part, and there is a gap between the front end face of the adjustment part and the cutting part.
3. The adjustable slitting blade according to claim 2, characterized in that, The adjustment part includes two symmetrically arranged semi-circular bodies. The first ends of the two semi-circular bodies are respectively connected to the first and last ends of the connecting part, and there is a gap between the last ends. The last end of the semi-circular body is provided with a threaded hole for installing a locking screw. The gap between the last ends of the two semi-circular bodies is reduced by locking with the locking screw.
4. The adjustable slitting blade according to claim 3, characterized in that, The adjustment section is split in the middle to form two semi-circular bodies, with the break point being the tail end of the semi-circular body.
5. A slitting roller, characterized in that, The device includes a plurality of adjustable slitting blades as described in any one of claims 1-4, and further includes a blade shaft on which a plurality of the adjustable slitting blades are mounted. The inner diameter of the adjustable slitting blade mounting portion is larger than the outer diameter of the blade shaft, and the adjustable slitting blade is fixed to the blade shaft by an adjustment portion.
6. The slitting roller according to claim 5, characterized in that, The cutter shaft is equipped with a scale, which is arranged parallel to the axial direction of the cutter shaft.
7. The slitting roller according to claim 5, characterized in that, The cutter shaft is connected to shafts on both sides, and a bushing is fitted onto the connecting shaft. The end face of the bushing is connected to the cutter shaft.
8. A slitting device, characterized in that, Includes a slitting roller as described in any one of claims 5-7, wherein the number of slitting rollers is two, the two slitting rollers are arranged in parallel, and the adjustable slitting blades of the two slitting rollers are spaced apart.