An anvil roller mechanism and a wide-width rotary cutting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]为此，需要提供一种砧辊机构及宽幅旋切装置，用于解决现有的砧辊芯轴与砧辊辊体过盈配合，两者不会相对转动，刀辊转动时可同步驱动砧辊芯轴及砧辊辊体转动，砧辊与刀辊的接触面不变，长期使用后砧辊的局部会过度磨损，磨损后的砧辊更换不便的技术问题
[0030] In any of the anvil roller mechanisms provided by the inventors above, the anvil roller protection ring contacts the corresponding cutter roller protection ring, and the anvil roller body contacts the cutting edge.
Smart Images
Figure CN224630966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flexible material cutting technology, and in particular to an anvil roller mechanism and a wide-width rotary cutting device. Background Technology
[0002] In the processing of flexible materials such as non-woven fabrics, the cooperation between the cutter roller and the anvil roller is a key step in achieving material cutting, slitting, or pressing.
[0003] The existing anvil roller mandrel and anvil roller body are interference-fitted, so they do not rotate relative to each other. When the cutter roller rotates, it can drive the anvil roller mandrel and anvil roller body to rotate synchronously. The contact surface between the anvil roller and the cutter roller remains unchanged. After long-term use, the anvil roller will wear excessively in some areas, and it is inconvenient to replace the worn anvil roller. Utility Model Content
[0004] Therefore, it is necessary to provide an anvil roller mechanism and a wide-width rotary cutting device to solve the technical problem that the existing anvil roller mandrel and anvil roller body are interference-fitted, and the two do not rotate relative to each other. When the cutter roller rotates, it can synchronously drive the anvil roller mandrel and anvil roller body to rotate. The contact surface between the anvil roller and the cutter roller remains unchanged. After long-term use, the anvil roller will be excessively worn in some areas, and it is inconvenient to replace the worn anvil roller.
[0005] To achieve the above objectives, in a first aspect, the present invention provides an anvil roller mechanism, comprising:
[0006] Anvil roller bearing housing;
[0007] Anvil roller mandrel, which is mounted on anvil roller bearing housing;
[0008] Two anvil roller protection rings are respectively fitted onto both ends of the anvil roller mandrel;
[0009] The anvil roller body is sleeved outside the anvil roller mandrel and located between the two anvil roller protective rings. The anvil roller body is rotatably connected to the anvil roller mandrel.
[0010] The anvil roller body is used to contact the cutting edge of the wide-width rotary cutting device so that the anvil roller body rotates relative to the anvil roller core shaft.
[0011] Unlike existing technologies, the above-mentioned technical solution sets the anvil roller body, which contacts the cutting edge of the wide-width rotary cutting device, to rotate relative to the anvil roller core shaft. On the one hand, the anvil roller body can rotate independently, so that the stress point of the anvil roller body will not be excessively concentrated, reducing the wear of the anvil roller body; on the other hand, when the anvil roller body needs to be replaced after wear, the anvil roller body can be replaced separately without disassembling heavy components such as the anvil roller bearing seat and the anvil roller core shaft, which is convenient for replacement and reduces downtime.
[0012] As one embodiment of the present invention, the anvil roller mechanism further includes an anvil roller bearing assembly, which is installed between the anvil roller core shaft and the anvil roller body. The anvil roller body is rotatably connected to the anvil roller core shaft through the anvil roller bearing assembly.
[0013] Thus, the anvil roller bearing assembly is precisely installed between the anvil roller spindle and the anvil roller body, enabling low-resistance and high-precision rotation.
[0014] As one embodiment of this utility model, the anvil roller bearing assembly includes two or more anvil roller inner bearings, which are symmetrically arranged at both ends of the anvil roller mandrel.
[0015] In this way, the symmetrical arrangement of multiple anvil roller bearings makes the rotation of the anvil roller body more stable, ensuring that the rotation speed is synchronized with the cutter roller.
[0016] As one embodiment of this utility model, four bearings are provided inside the anvil roller, which are symmetrically arranged in pairs at both ends of the anvil roller core shaft.
[0017] Thus, the four-point support provides strong radial support force, which can effectively prevent the anvil roller body from deflecting and deforming at high speeds.
[0018] As one embodiment of the present invention, the anvil roller mechanism further includes a pressure sensor, which is installed between the anvil roller spindle and the anvil roller bearing assembly and / or between the anvil roller bearing assembly and the anvil roller body. The pressure sensor is used to detect the pressure on the anvil roller body.
[0019] In this way, the pressure sensor can detect the working pressure on the anvil roller body in real time and accurately, thereby adjusting the distance between the cutter roller and the anvil roller body.
[0020] As one embodiment of this utility model, the anvil roller mechanism also includes an anvil roller outer bearing, which is installed between the anvil roller bearing seat and the anvil roller core shaft.
[0021] In this way, the outer bearing of the anvil roller can help stabilize the rotation of the anvil roller spindle.
[0022] As one embodiment of this utility model, the anvil roller mechanism also includes an anvil roller protective sleeve, which is sleeved on the anvil roller body, and the anvil roller body is used to contact the cutting edge of the wide-width rotary cutting device through the anvil roller protective sleeve.
[0023] In this way, the anvil roller protective sleeve effectively protects the anvil roller body from direct wear. When the anvil roller protective sleeve wears out, only the anvil roller protective sleeve needs to be replaced, making the maintenance process simple and quick, greatly reducing downtime, and significantly lowering overall maintenance costs.
[0024] In one embodiment of this utility model, the protective sleeve is interference-fitted with the anvil roller body.
[0025] In this way, by interfering with the protective sleeve and the anvil roller body, seamless synchronous rotation of the two is ensured, thereby guaranteeing the transmission efficiency between the protective sleeve and the anvil roller body.
[0026] In one embodiment of this utility model, the two ends of the protective sleeve are connected to the anvil roller body by fasteners.
[0027] In this way, the protective sleeve is connected to the anvil roller body by fasteners, which strengthens the fixation between the protective sleeve and the anvil roller body.
[0028] To achieve the above objectives, in a second aspect, this utility model also provides a wide-width rotary cutting device, comprising:
[0029] The cutter roller mechanism includes a cutter roller bearing housing, a cutter roller, a cutter roller bearing, two cutter roller protective rings, and a cutting edge. The cutter roller is mounted on the cutter roller bearing housing, and the cutter roller bearing is mounted between the cutter roller bearing housing and the cutter roller. The two cutter roller protective rings are respectively sleeved on both ends of the cutter roller, and the cutting edge is set on the outer circumferential surface of the cutter roller.
[0030] In any of the anvil roller mechanisms provided by the inventors above, the anvil roller protection ring contacts the corresponding cutter roller protection ring, and the anvil roller body contacts the cutting edge.
[0031] Unlike existing technologies, this application's technical solution employs a dual rolling mechanism to solve the problem of anvil roller jamming. The first rolling action involves the anvil roller protection ring contacting the corresponding cutter roller protection ring, ensuring a continuous and stable driving force for the anvil roller mandrel. The second rolling action involves the contact between the anvil roller body and the cutter roller's cutting edge, synchronizing the anvil roller body's rotational speed with the cutter roller. This ensures that even at the moment of blade separation, the anvil roller mechanism maintains its motion tendency due to inertia and the continuous rotation of the anvil roller mandrel, eliminating the impact of sudden stops and starts. This results in extremely uniform material stress, effectively preventing stretching, wrinkles, and burrs, significantly improving cutting quality.
[0032] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description
[0033] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.
[0034] In the accompanying drawings of the instruction manual:
[0035] Figure 1This is a schematic diagram of the structure of a wide-width rotary cutting device according to an embodiment of this application;
[0036] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0037] Figure 3 for Figure 1 Enlarged view of B in the middle;
[0038] Figure 4 This is a schematic diagram of the anvil roller mechanism according to one embodiment of this application;
[0039] Figure 5 for Figure 4 Enlarged view of C;
[0040] Figure 6 for Figure 4 A magnified view of D.
[0041] The reference numerals used in the above figures are explained as follows:
[0042] 100-Wide-width rotary cutting device; 1-Knife roller mechanism; 11-Knife roller bearing seat; 12-Knife roller; 13-Knife roller bearing; 14-Knife roller protective ring; 15-Cutting edge; 2-Anvil roller mechanism; 21-Anvil roller bearing seat; 22-Anvil roller mandrel; 23-Anvil roller protective ring; 24-Anvil roller body; 25-Roller bearing assembly; 251-Anvil roller inner bearing; 26-Anvil roller outer bearing; 27-Anvil roller protective sleeve. Detailed Implementation
[0043] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0044] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0045] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0046] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0047] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0048] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0049] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0050] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0051] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0052] The existing anvil roller mandrel and anvil roller body are interference-fitted, so they do not rotate relative to each other. When the cutter roller rotates, it can drive the anvil roller mandrel and anvil roller body to rotate synchronously. The contact surface between the anvil roller and the cutter roller remains unchanged. After long-term use, the anvil roller will wear excessively in some areas, and it is inconvenient to replace the worn anvil roller.
[0053] In view of this, this application provides an anvil roller mechanism 2, including anvil roller bearing seat 21, anvil roller core shaft 22, two anvil roller protection rings 23, and anvil roller body 24; the anvil roller core shaft 22 is mounted on the anvil roller bearing seat 21; the two anvil roller protection rings 23 are respectively sleeved on both ends of the anvil roller core shaft 22; the anvil roller body 24 is sleeved outside the anvil roller core shaft 22 and located between the two anvil roller protection rings 23, and the anvil roller body 24 is rotatably connected to the anvil roller core shaft 22; wherein, the anvil roller body 24 is used to contact the cutting edge 15 of the wide-width rotary cutting device 100 so that the anvil roller body 24 rotates relative to the anvil roller core shaft 22.
[0054] According to some embodiments of this application, please refer to Figures 1 to 3 This embodiment relates to a wide-width rotary cutting device 100, including a cutter roller mechanism 1 and an anvil roller mechanism 2. The cutter roller mechanism 1 includes a cutter roller bearing seat 11, a cutter roller 12, a cutter roller bearing 13, two cutter roller protection rings 14, and a cutting edge 15. The cutter roller 12 is mounted on the cutter roller bearing seat 11, and the cutter roller bearing 13 is mounted between the cutter roller bearing seat 11 and the cutter roller 12. The two cutter roller protection rings 14 are respectively sleeved on both ends of the cutter roller 12, and the cutting edge 15 is disposed on the outer circumferential surface of the cutter roller 12. The anvil roller protection ring 23 contacts the corresponding cutter roller protection ring 14, and the anvil roller body 24 contacts the cutting edge 15.
[0055] The cutter roller bearing housing 11 is fixed to the equipment frame, providing support for the cutter roller 12. The cutter roller bearing 13 is a high-precision deep groove ball bearing, installed between the cutter roller bearing housing 11 and the cutter roller 12, ensuring smooth rotation of the cutter roller 12. The cutting edge 15 is used for precise cutting of flexible materials; optionally, the angle of the cutting edge 15 is 30°-100° to reduce material pulling.
[0056] The cutter roller protection ring 14 and the anvil roller protection ring 23 support and reduce crushing damage to the cutting edge 15, thereby improving the service life of the cutting edge 15.
[0057] The technical solution of this application adopts a dual rolling mechanism to solve the problem of anvil roller jamming. The first rolling action involves the anvil roller protection ring 23 contacting the corresponding cutter roller protection ring 14, ensuring that the anvil roller mandrel 22 receives a continuous and stable basic driving force. The second rolling action involves the anvil roller body 24 contacting the cutting edge 15 of the cutter roller 12, synchronizing the rotational speed of the anvil roller body 24 with that of the cutter roller 12. This ensures that even at the moment the cutting edge 15 separates, the anvil roller mechanism 2 maintains its motion trend due to inertia and the continuous rotation of the anvil roller mandrel 22, eliminating the impact caused by sudden stops and starts. This results in extremely uniform material stress, effectively avoiding stretching, wrinkles, and burrs, and significantly improving cutting quality.
[0058] The working principle of the wide-width rotary cutting device 100 is as follows:
[0059] First rolling motion: The motor drives the cutter roller 12 to rotate, and the cutter roller protection ring 14 fixed on it rotates accordingly. By contacting the anvil roller protection ring 23 (the contact pressure is 50N-300N, which can be adjusted according to the material thickness), the working pressure is transmitted and the anvil roller spindle 22 is driven to start rotating.
[0060] The second rolling motion: When the cutting edge 15 on the cutter roller 12 rotates to contact the anvil roller body 24, it generates a strong frictional force, further driving the anvil roller body 24 to rotate relative to the anvil roller spindle 22 until it is synchronized with the cutter roller 12 (speed deviation ≤ 5 r / min). Simultaneously, the cutter roller protection ring 14 and the anvil roller protection ring 23 remain in continuous contact, causing the cutter roller 12 spindle to rotate continuously. When the cutting edge 15 passes and separates from the anvil roller body 24, the speed of the anvil roller body 24 will decrease. However, due to the continuous first rolling motion, it provides the basic power for the entire wide-width rotary cutting device 100, effectively suppressing sudden stops of the anvil roller body 24, allowing it to smoothly pass through the area without the cutting edge 15, and achieve smooth acceleration when the next cutting edge 15 contacts it again, thus ensuring the extraordinary smoothness of the entire motion process.
[0061] Dual drive ensures continuous rotation of the anvil roller body 24, adapting to processing speeds of 50-1000 r / min, meeting the needs of high-speed production lines.
[0062] According to some embodiments of this application, please refer to Figures 1 to 6This embodiment also relates to an anvil roller mechanism 2, including anvil roller bearing seat 21, anvil roller core shaft 22, two anvil roller protection rings 23, and anvil roller body 24; the anvil roller core shaft 22 is mounted on the anvil roller bearing seat 21; the two anvil roller protection rings 23 are respectively sleeved on both ends of the anvil roller core shaft 22; the anvil roller body 24 is sleeved outside the anvil roller core shaft 22 and located between the two anvil roller protection rings 23, and the anvil roller body 24 is rotatably connected to the anvil roller core shaft 22; wherein, the anvil roller body 24 is used to contact the cutting edge 15 of the wide-width rotary cutting device 100 so that the anvil roller body 24 rotates relative to the anvil roller core shaft 22.
[0063] The anvil roller bearing seat 21 is fixed to the equipment frame. The anvil roller spindle 22 can be made of high-strength steel (e.g., 40Cr) and fixed by the anvil roller bearing seat 21. Precision screws and a wedge block fine adjustment mechanism can be provided at both ends (to compensate for the radial distance of 0-2mm between the anvil roller and the cutter roller 12).
[0064] The anvil roller body 24 can be made of high alloy steel to reduce the risk of being cut by the cutting edge 15.
[0065] The above technical solution sets the anvil roller body 24, which contacts the cutting edge 15 of the wide-width rotary cutting device 100, to be rotatably connected to the anvil roller core shaft 22. On the one hand, the anvil roller body 24 can rotate independently, so that the force points of the anvil roller body 24 will not be excessively concentrated, reducing the wear of the anvil roller body 24. On the other hand, when the anvil roller body 24 needs to be replaced after wear, the anvil roller body 24 can be replaced separately without disassembling heavy components such as the anvil roller bearing seat 21 and the anvil roller core shaft 22, which is convenient for replacement and reduces downtime.
[0066] like Figure 4 As shown, the anvil roller mechanism 2 also includes anvil roller bearing assembly 25, which is installed between the anvil roller spindle 22 and the anvil roller body 24. The anvil roller body 24 is rotatably connected to the anvil roller spindle 22 through the anvil roller bearing assembly 25.
[0067] Thus, the anvil roller bearing assembly 25 is precisely installed between the anvil roller spindle 22 and the anvil roller body 24, enabling low-resistance and high-precision rotation.
[0068] like Figure 5 As shown, the anvil roller bearing assembly 25 includes two or more anvil roller inner bearings 251, which are symmetrically arranged at both ends of the anvil roller mandrel 22.
[0069] Thus, the symmetrical arrangement of multiple anvil roller bearings 251 makes the rotation of the anvil roller body 24 more stable, ensuring that the rotation speed is synchronized with the cutter roller 12.
[0070] like Figure 4 and Figure 5 As shown, there are four bearings 251 inside the anvil roller, which are symmetrically arranged in pairs at both ends of the anvil roller spindle 22.
[0071] Thus, the four-point support provides strong radial support force, which can effectively prevent the anvil roller body 24 from flexing and deforming at high speed.
[0072] According to some embodiments of this application, optionally, the anvil roller mechanism 2 further includes a pressure sensor installed between the anvil roller spindle 22 and the anvil roller bearing assembly 25 and / or between the anvil roller bearing assembly 25 and the anvil roller body 24, the pressure sensor being used to detect the pressure on the anvil roller body 24.
[0073] In this way, the pressure sensor can detect the working pressure on the anvil roller body 24 in real time and accurately, thereby adjusting the distance between the cutter roller 12 and the anvil roller body 24.
[0074] like Figure 4 and Figure 6 As shown, the anvil roller mechanism 2 also includes an anvil roller outer bearing 26, which is installed between the anvil roller bearing seat 21 and the anvil roller spindle 22.
[0075] Thus, the outer bearing 26 of the anvil roller can assist the anvil roller spindle 22 in rotating stably.
[0076] like Figure 4 As shown, the anvil roller mechanism 2 also includes anvil roller protective sleeve 27, which is sleeved on the outside of the anvil roller body 24. The anvil roller body 24 is used to contact the cutting edge 15 of the wide-width rotary cutting device 100 through the anvil roller protective sleeve 27.
[0077] In this way, the anvil roller protective sleeve 27 effectively protects the anvil roller body 24 from direct wear. When the anvil roller protective sleeve 27 wears out, only the anvil roller protective sleeve 27 needs to be replaced. The maintenance process is simple and quick, the downtime is greatly shortened, and the overall maintenance cost is greatly reduced.
[0078] According to some embodiments of this application, optionally, the protective sleeve is interference-fitted with the anvil roller body 24.
[0079] Thus, by interfering with the protective sleeve and the anvil roller body 24, seamless synchronous rotation of the two is ensured, thereby guaranteeing the transmission efficiency between the protective sleeve and the anvil roller body 24.
[0080] According to some embodiments of this application, optionally, both ends of the protective sleeve are connected to the anvil roller body 24 by fasteners.
[0081] The two ends of the protective sleeve are connected to the anvil roller body 24 to avoid the cutting edge 15 and are located at the outer end of the cutting edge 15.
[0082] Fasteners can be bolts, screws, or screws, etc.
[0083] Thus, the protective sleeve is connected to the anvil roller body 24 by fasteners, which strengthens the fixation between the protective sleeve and the anvil roller body 24.
[0084] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.
Claims
1. A type of anvil roller mechanism, characterized in that, include: Anvil roller bearing housing; An anvil roller mandrel, which is mounted on the anvil roller bearing housing; Two anvil roller protection rings are respectively sleeved on both ends of the anvil roller mandrel; An anvil roller body is sleeved outside the anvil roller mandrel and located between the two anvil roller protective rings. The anvil roller body is rotatably connected to the anvil roller mandrel. The anvil roller body is used to contact the cutting edge of the wide-width rotary cutting device so that the anvil roller body rotates relative to the anvil roller core shaft.
2. The die roll mechanism of claim 1 wherein, The anvil roller mechanism further includes an anvil roller bearing assembly, which is installed between the anvil roller mandrel and the anvil roller body. The anvil roller body is rotatably connected to the anvil roller mandrel through the anvil roller bearing assembly.
3. The die roll mechanism of claim 2, wherein, The anvil roller bearing assembly includes two or more anvil roller inner bearings, which are symmetrically arranged at both ends of the anvil roller mandrel.
4. The die roll mechanism of claim 3, wherein, The anvil roller has four bearings, which are symmetrically arranged in pairs at both ends of the anvil roller core shaft.
5. The die roll mechanism of claim 2 wherein, The anvil roller mechanism also includes a pressure sensor, which is installed between the anvil roller mandrel and the anvil roller bearing assembly and / or between the anvil roller bearing assembly and the anvil roller body. The pressure sensor is used to detect the pressure on the anvil roller body.
6. The die roll mechanism of claim 2 wherein, The anvil roller mechanism also includes an external anvil roller bearing, which is installed between the anvil roller bearing seat and the anvil roller spindle.
7. The die roll mechanism of claim 1 wherein, The anvil roller mechanism also includes an anvil roller protective sleeve, which is sleeved on the anvil roller body. The anvil roller body is used to contact the cutting edge of the wide-width rotary cutting device through the anvil roller protective sleeve.
8. The die roll mechanism of claim 7, wherein, The protective sleeve is interference-fitted with the anvil roller body.
9. The die roll mechanism of claim 7 wherein, The two ends of the protective sleeve are connected to the anvil roller body by fasteners.
10. A wide-width rotary cutting device, characterized in that, include: A cutter roller mechanism includes a cutter roller bearing seat, a cutter roller, a cutter roller bearing, two cutter roller protective rings, and a cutting edge. The cutter roller is mounted on the cutter roller bearing seat, and the cutter roller bearing is mounted between the cutter roller bearing seat and the cutter roller. The two cutter roller protective rings are respectively sleeved on both ends of the cutter roller, and the cutting edge is disposed on the outer circumferential surface of the cutter roller. In the anvil roller mechanism as described in any one of claims 1 to 9, the anvil roller protection ring contacts the corresponding cutter roller protection ring, and the anvil roller body contacts the cutting edge.