CN116653021A

CN116653021A - Knife roller device and wide-width material cutting equipment

Info

Publication number: CN116653021A
Application number: CN202310571756.0A
Authority: CN
Inventors: 余富才; 郑成钟; 黄云龙
Original assignee: SANMING PNV MACHINERY CO Ltd
Current assignee: SANMING PNV MACHINERY CO Ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-08-29

Abstract

The application relates to a knife roll device and wide material cutting equipment, comprising a bearing seat assembly and a knife roll; the bearing seat assembly comprises a bearing and a bearing seat, the bearing is arranged on the bearing seat, and the bearing seat is arranged in a side plate slideway of the die carrier; the knife roller is arranged in the bearing, the knife roller comprises a knife roller body and at least one blade, the section of the knife roller body is flat, the blade is arranged on the knife roller body, and the knife roller body and the blade are integrally formed. According to the technical scheme, the cylindrical knife roller is designed to be flat, and particularly, the knife roller body is designed to be flat. Compared with a cylindrical roller body structure, the flat knife roller not only keeps the cutting part and the supporting part thereof, but also keeps the necessary transition part and the part corresponding to the cutting part, thereby greatly reducing the consumption of the wear-resistant steel material, greatly reducing the redundant metal to be removed, and greatly reducing the material cost and the processing cost.

Description

Knife roller device and wide-width material cutting equipment

Technical Field

The application relates to the field of wide rotary cutting, in particular to a knife roller device and wide material cutting equipment.

Background

In the patent application number 201520206506.8, the support rings are additionally arranged on two sides of the main body part of the roll body to serve as the adjustment reference of the rotating radius of the blade tip, so that the blade tips of different stations can be quickly adjusted on the same rotating circle, the cutter adjusting efficiency is greatly improved, the straight cutting blade is always in continuous contact with the anvil in the high-speed rotating die cutting process, the vibration generated by the instant intermittent contact of the blade tip and the anvil can be avoided, the tip can be protected, the die cutting stability of the diameter cutter rolling die cutting is greatly improved, and the service life of the blade is greatly prolonged. And 201621445050.1, the patent name is an adjustable knife roller, on the one hand can prevent that cutter roller and backing roll from rolling the cutting time blade striking backing roll and make the life of blade reduce through setting up the protection lip in the patent of adjustable knife roller, on the other hand, thereby the arc groove on the protection lip can be used for adjusting the distance between the blade and adapt to not unidimensional product, and the blade bottom plate is fixed on the protection lip through both ends setting up the connecting plate and is made stable in structure, better installation blade.

The knife roll body and the knife blade in the two patents are detachably connected, but as in the knife roll 32a of the integral wide-width material cutting device disclosed in the prior art in fig. 1, a protection step and a knife edge (or embossing) are required to be processed on the cylindrical knife roll 32a, but because the cylindrical knife roll 32a has large specification, a large amount of expensive wear-resistant steel is required to be consumed, and a large amount of redundant metal is required to be removed, so the material cost and the processing cost are high.

Disclosure of Invention

In view of the above problems, the present application provides a knife roll device and a wide material cutting apparatus for solving the problems of high material cost and processing cost due to the large size of the roll body, the consumption of a large amount of expensive wear-resistant steel, and the removal of a large amount of redundant metal, which are caused by the processing protection steps, knife edges (or embossing) on the cylindrical roll body.

To achieve the above object, the present inventors provide a cutter roll device including a bearing housing assembly and a cutter roll; the bearing seat assembly comprises a bearing and a bearing seat, the bearing is arranged on the bearing seat, and the bearing seat is arranged in a side plate slideway of the die carrier; the knife roller is arranged in the bearing and comprises a knife roller body and a cutting piece, the cutting piece is arranged on the knife roller body, and the cross section of the knife roller body is flat.

In some embodiments, the knife roll body is integrally formed with the cutting member, the cutting member including two or more blades, the two or more blades being located on the same outer circle.

In some embodiments, the angle between the blade and the knife roller axis is set at a predetermined angle.

In some embodiments, the predetermined angle is 0 degrees to 2 degrees.

In some embodiments, the tip angle of the blade is 30 degrees to 120 degrees.

Unlike the prior art, the above-mentioned technical scheme designs cylindrical knife roller into flat shape, specifically designs knife roller body into flat shape. Compared with a cylindrical roller body structure, the flat knife roller not only keeps the cutting part and the supporting part thereof, but also keeps the necessary transition part and the part corresponding to the cutting part, thereby greatly reducing the consumption of the wear-resistant steel material, greatly reducing the redundant metal to be removed, and greatly reducing the material cost and the processing cost.

To achieve the above object, the present inventors also provide a wide-width material cutting apparatus including a die frame, an anvil roll device, a cutter roll device as provided by the present inventors, and a pressurizing device; the die carrier comprises a side plate and a top plate, and a side plate slideway is arranged on the side plate; the anvil roll device comprises an anvil roll which is arranged on the side plate; the pressurizing device is arranged on the top plate, the output end of the pressurizing device is connected with the knife roller device, and the pressurizing device is used for cutting the adhesive material between the anvil roller device and the knife roller device by pressurizing the knife roller device.

In some embodiments, the anvil roll includes a base block having a recess formed therein, an insert mounted in the recess by the fastener, and a fastener.

In some embodiments, the wide-width material cutting device further comprises an adjusting device, the adjusting device comprises an adjusting wedge block, an adjusting screw rod and a fixing seat, the adjusting wedge block is sleeved on the adjusting screw rod, the fixing seat is sleeved at one end of the adjusting screw rod, and the fixing seat is mounted on the side plate; the adjusting screw is used for adjusting the position of the adjusting wedge block so as to adjust the center distance between the knife roller and the anvil roller.

In some embodiments, the adjusting device further comprises a tightening screw and a locking nut, a radial screw hole communicated to the adjusting screw is formed in the side wall of the fixing base, the tightening screw is locked into the radial screw hole and tightens the adjusting screw, the locking nut is sleeved at one end, far away from the fixing base, of the adjusting screw, and the locking nut is used for being abutted against and fixed with the connecting side plate.

In some embodiments, the knife roller device further comprises a protection step, and the protection steps are installed on two sides of the knife roller body.

The foregoing summary is merely an overview of the present application, and may be implemented according to the text and the accompanying drawings in order to make it clear to a person skilled in the art that the present application may be implemented, and in order to make the above-mentioned objects and other objects, features and advantages of the present application more easily understood, the following description will be given with reference to the specific embodiments and the accompanying drawings of the present application.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present application and are not to be construed as limiting the application.

In the drawings of the specification:

FIG. 1 is a schematic view of a knife roll according to the background art;

FIG. 2 is a schematic view of another structure of a knife roll according to the prior art

FIG. 3 is a schematic view of a wide web cutting apparatus according to an embodiment;

FIG. 4 is another schematic view of a wide web cutting apparatus according to an embodiment;

FIG. 5 is a schematic view of an anvil roll according to an embodiment;

FIG. 6 is a cross-sectional view of B-B in FIG. 5;

fig. 7 is a schematic structural view of the adjusting device according to the embodiment.

FIG. 8 is a schematic view of a knife roll according to an embodiment;

FIG. 9 is a cross-sectional view of A-A of FIG. 8;

FIG. 10 is an enlarged view of C in FIG. 9;

FIG. 11 is another cross-sectional view of A-A of FIG. 8;

reference numerals referred to in the above drawings are explained as follows:

100. a wide-width material cutting device;

1. a mould frame;

11. a side plate;

12. a top plate;

13. a bottom plate;

2. an anvil roll device;

21. an anvil roll;

211. a base block;

212. an insert;

213. a fastener;

3. a knife roll device;

31. a bearing block assembly;

311. a bearing;

312. a bearing seat;

32. a knife roll;

321. a cutter roller body;

322. a blade;

33. the protection step;

4. a pressurizing device;

5. an adjusting device;

51. wedge blocks;

52. adjusting a screw;

53. a fixing seat;

54. tightly pushing the screw;

55. a lock nut;

32a, knife rolls;

322a, blades;

6a, a blade clamping device;

a. presetting an angle;

b. the angle of the knife tip.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the application.

In the description of the present application, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present application, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present application, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present application, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the application should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains according to circumstances.

Referring to fig. 3 and 4, a wide-width material cutting apparatus 100 of the present embodiment includes a die frame 1, an anvil roll device 2, a knife roll device 3, and a pressing device 4; the die carrier 1 comprises a side plate 11 and a top plate 12, wherein a side plate 11 slideway is arranged on the side plate 11; the anvil roll device 2 includes an anvil roll 21, the anvil roll 21 being mounted on the side plate 11; the pressing device 4 is mounted on the top plate 12, and an output end of the pressing device 4 is connected to the cutter roller device 3, and the pressing device 4 presses the cutter roller device 3 to cut the adhesive material between the anvil roller device 2 and the cutter roller device 3.

The die carrier 1 comprises a top plate 12, side plates 11 and a bottom plate 13, wherein the side plates 11 are arranged between the top plate 12 and the bottom plate 13, and side plate 11 slides for installing the knife roll device 3 and the anvil roll device 2 are arranged on the side plates 11.

The anvil roll device 2 includes an anvil roll 21, and the anvil roll 21 is mounted on the side plate 11. Optionally, the anvil roll device 2 further comprises an anvil roll 21 bearing block assembly 31, the anvil roll 21 being mounted in the side plate 11 slideway by means of the anvil roll 21 bearing block assembly 31.

The knife roller device 3 comprises a knife roller 32 and a bearing block assembly 31, wherein the knife roller 32 is arranged in a slideway of the side plate 11 through the bearing block assembly 31, and the knife roller 32 is positioned above the anvil roller 21. In some embodiments, knife roll 32 may be located directly above anvil roll 21 or knife roll 32 may be located obliquely above anvil roll 21 in view of feed interference.

The pressing device 4 is used for cutting the adhesive material between the knife roll 32 and the anvil roll 21, specifically, the pressing device 4 is mounted on the top plate 12, the output end of the pressing device 4 is connected with the knife roll device 3, and the knife roll 32 moves towards the anvil roll 21 under the action of the pressing device 4 to realize cutting.

For the wide web material cutting apparatus 100, the cylindrical cutter roller 32 is designed to be flat, and specifically, the cutter roller body 321 is designed to be flat. Compared with the cylindrical roller body structure, the flat knife roller 32 not only keeps the cutting part and the supporting part thereof, but also keeps the necessary transition part and the part corresponding to the cutting part of the protection step 33, thereby greatly reducing the consumption of the wear-resistant steel material, greatly reducing the redundant metal to be removed, and greatly reducing the material cost and the processing cost.

According to some embodiments of the present application, optionally, as shown in fig. 5 and 6, the anvil roll 21 includes a base block 211, an insert 212, and a fastener 213, the base block being grooved, the insert 212 being mounted in the groove by the fastener 213.

The anvil roll 21 of the prior art generally adopts a roll body (made of cylindrical wear-resistant steel) and a mandrel (made of cylindrical common steel), and needs to consume a lot of materials during processing and manufacturing, thereby having high cost. Thus, the base block is provided with a recess in which the insert 212 is mounted, and the insert 212 is mounted in the recess by a fastener 213, which fastener 213 may be a bolt or screw, or the like. Wherein, the material of the base block 211 is cylindrical common steel, and the material of the insert 212 is wear-resistant steel plate. The cooperation of the base block 211 and the insert 212 greatly reduces the consumption of expensive wear resistant steel materials compared to the combination of the roll body and the mandrel, thereby reducing material costs.

According to some embodiments of the present application, optionally, as shown in fig. 4 and 7, the wide-width material cutting apparatus 100 further includes an adjusting device 5, where the adjusting device 5 includes an adjusting wedge 51, an adjusting screw 52, and a fixing base 53, the adjusting wedge 51 is sleeved on the adjusting screw 52, the fixing base 53 is sleeved on one end of the adjusting screw 52, and the fixing base 53 is installed on the side plate 11; the adjusting screw 52 is used for adjusting the position of the adjusting wedge 51 to adjust the center distance between the knife roll 32 and the anvil roll 21.

In the prior art, the center distance between the knife roller 32 and the anvil roller 21 is fixed, so that in actual use, the knife edges of the knife blades 322 need to be manually adjusted to be in uniform contact with the roller body of the anvil roller 21, the contact force between the knife edges and the anvil roller 21 is difficult to control, and when the knife roller 32 is provided with two or more knife blades 322, the contact force between the knife edges of each knife blade 322 and the anvil roller 21 is difficult to be adjusted to be the same. The requirements on the technical level of the machine-setting workers are high, and if the contact force between the tip of each blade 322 and the anvil roll 21 is different, the die cutting effect and the service life of each blade 322 are greatly affected, and the tipping is easily caused. In addition, when the tip of the blade 322 is worn, the machine is stopped, and the blade 322 is manually readjusted, which is time-consuming and labor-consuming and affects the opening rate. Therefore, the adjusting device 5 needs to be provided to adjust the center distance between the cutter roller 32 and the anvil roller 21. The adjusting component is used for adjusting the center distance between the knife roller 32 and the anvil roller 21 and accurately fixing the position of the knife roller 32, on one hand, after the knife tip is worn, only the center distance between the knife roller 32 and the anvil roller 21 is required to be adjusted, and the blade 322 is not required to be manually readjusted, so that the time and labor are saved, and the starting rate is remarkably improved; the contact force between the knife point of the knife roller 32 and the anvil roller 21 can be adjusted by adjusting the center distance, and compared with the simple manual adjustment, the requirements on the technical level of a machine worker are lower. On the other hand, the center distance between the cutter roller 32 and the anvil roller 21 is prevented from being changed due to stress, vibration and the like in the high-speed die cutting process. Optionally, the adjusting wedge abuts a lower end face of a bearing housing in the knife roller bearing housing assembly.

According to some embodiments of the present application, optionally, as shown in fig. 7, the adjusting device 5 further includes a tightening screw 54 and a locking nut 55, a radial screw hole connected to the adjusting screw 52 is formed on a side wall of the fixing base 53, the tightening screw 54 is locked into the radial screw hole and tightens the adjusting screw 52, the locking nut 55 is sleeved on an end of the adjusting screw 52 away from the fixing base 53, and the locking nut 55 is used for being abutted and fixed with the connecting side plate 11.

Because the adjusting screw 52 and the fixing seat 53 have a gap in the axial direction, the adjusting screw 52 is easy to axially move to drive the oblique block to axially move in the cutting process or in the process of adjusting the die spacing between the upper knife roller 32 and the lower knife roller 32 by a user, so that the spacing between the knife roller 32 and the anvil roller 21 is changed, the adjusting precision is low, and the normal die cutting of the die of the knife roller 32 is affected. Thus, the adjustment assembly also includes a jack screw 54 and a lock nut 55.

Through setting up the tight screw 54 in top on fixing base 53, make tight screw 54 in top and adjusting screw 52 support to lean on fixedly, in order to prevent adjusting screw 52 rotation at the cutting process, make the sloping block produce axial displacement, through setting up lock nut 55 in the one end that adjusting screw 52 kept away from fixing base 53, taut adjusting screw 52 and fixing base 53, eliminate the axial clearance between adjusting screw 52 tip and the fixing base 53, and then accomplish effectively preventing adjusting screw 52 axial float, prevent the interval between knife roll 32 and the anvil roll 21 and change, improve adjusting component's regulation precision, guarantee wide rotary-cut device's normal work.

According to some embodiments of the present application, optionally, as shown in fig. 9 and 11, the cutter roller device 3 further includes a protection step 33, and the protection steps 33 are mounted on two sides of the cutter roller body 321. The protection step 33 may be integrally formed with the cutter roller body 321, or may be detachably mounted on the cutter roller body 321.

The protection steps 33 are arranged at the two ends of the knife roller 32 to prevent the adjusting device 5 from being excessively adjusted, so that the knife tip is effectively protected from tipping and breaking, and the die cutting effect and the service life are obviously improved.

Referring to fig. 8 to 11, the present embodiment further relates to a knife roll device 3, including a bearing seat assembly 31 and a knife roll 32; the bearing seat assembly 31 comprises a bearing 311 and a bearing seat 312, wherein the bearing 311 is arranged on the bearing seat 312, and the bearing seat 312 is arranged in a slide way of the side plate 11 of the die carrier 1; the knife roller 32 is installed in the bearing 311, and the knife roller 32 includes a knife roller body 321 and a cutting member, and the cutting member is provided on the knife roller body 321, and the cross section of the knife roller body 321 is flat.

The bearing seat assembly 31 comprises a bearing 311 and a bearing seat 312, wherein the bearing 311 is installed on the bearing seat 312, the bearing seat 312 is installed in a slideway of the side plate 11 of the die carrier 1, and the bearing 311 is used for installing the knife roll 32.

The cutter roller 32 includes a cutter roller body 321 and a cutting member, the cutting member is mounted on the cutter roller body 321, and the cutter roller body 321 can be integrally formed with the cutting member or detachably mounted. Wherein, the roll body of knife roller body 321 establishes at the dabber of knife roller body 321 through the centre bore cover, with the dabber interference fit of knife roller body 321, the material of dabber is cylindrical ordinary steel, the material of roll body is wear-resisting steel sheet. Alternatively, the cutting element may be an embossing or a blade 322 or the like. And the cross section of the cutter roller body 321 is arranged in a flat shape.

Compared with the cylindrical roller body structure, the flat knife roller 32 not only keeps the cutting part and the supporting part thereof, but also keeps the necessary transition part and the part corresponding to the cutting part of the protection step 33, thereby greatly reducing the consumption of the wear-resistant steel material, greatly reducing the redundant metal to be removed, and greatly reducing the material cost and the processing cost.

Optionally, as shown in fig. 9 and 11, the cutter roller body 321 is integrally formed with a cutting member, and the cutting member includes two or more blades 322, and the two or more blades 322 are located on the same outer circle.

As shown in fig. 2, the prior art knife roll body is detachably connected to the blade 322a, and the knife roll 32a includes the blade 322a and the blade holding device 6a, the blade holding device 6a being used to hold the blade 322a. In practical use, each blade 322a needs to be manually adjusted to be in contact with the anvil roll, and because the length of the blade 322a is long, the blade tip of the blade 322a needs to be manually adjusted to be in uniform contact with the anvil roll body, so that not only is the contact force between the blade tip and the anvil roll difficult to control, but also when the blade roll 32a is provided with two or more blades 322a, the contact force between the blade tip of each blade 322a and the anvil roll is difficult to be adjusted to be the same. The requirements on the technical level of the machine-setting workers are high, and if the contact force between the tip of each blade 322a and the anvil roll is different, the die cutting effect and the service life of each blade 322a are greatly affected, so that the tipping is easily caused. Therefore, in order to solve the problem, besides the adjusting device 5, the cutter roller body 321 and the cutting member can be integrally formed, the cutter roller 32 is integrally ground and edged by the outer circle, the cutter tips of the cutter blades 322 are on the same outer circle, the cutter tips of the cutter blades 322 are not required to be independently adjusted, the cutter tips of the cutter blades 322 are ensured to be uniformly contacted with the anvil roller 21, the contact force between the cutter tips of the cutter blades and the anvil roller 21 is the same, the manual adjustment of each cutter blade 322 by a machine halt is not required, and the technical level requirement of a machine worker is low.

Optionally, according to some embodiments of the present application, as shown in fig. 8, the angle between the blade 322 and the axis of the knife roller 32 is set at a predetermined angle a.

Because the blade 322 has a certain length, the pressure and vibration required for the blade 322 to contact the roll body of the anvil roll 21 are excessive in practical use. Therefore, the angle between the blade 322 and the axis of the cutter roller 32 is set at a predetermined angle a to solve the problem. Alternatively, the preset angle a is 0 to 2 degrees, whereby the blade 322 comes into contact with the anvil roll 21 from left to right with the descending speed, completing the cutting. The length of the blade 322 in contact with the anvil roll 21 is greatly reduced in the process, the vibration and the required pressure of high-speed cutting are reduced, and the cutting is facilitated.

Alternatively, as shown in fig. 10, the tip angle b of the blade 322 may be 30 to 120 degrees, according to some embodiments of the present application.

The edge of the blade 322 in the prior art is generally a fixed 90-degree angle, and the 90-degree angle of the edge cannot be changed, so that the angle of the blade 322 cannot be switched according to different materials, and the use is not flexible. Therefore, the knife tip angle b of the knife blade 322 is set to be 30 degrees to 120 degrees, and the knife blade 322 or the knife roller 32 can be replaced according to different materials, so that the cutting can be better completed according to different cutting materials in use.

Unlike the prior art, the above-described technical solution designs the cylindrical cutter roller 32 in a flat shape, specifically, designs the cutter roller body 321 in a flat shape. Compared with the cylindrical roller body structure, the flat knife roller 32 not only keeps the cutting part and the supporting part thereof, but also keeps the necessary transition part and the part corresponding to the cutting part of the protection step 33, thereby greatly reducing the consumption of the wear-resistant steel material, greatly reducing the redundant metal to be removed, and greatly reducing the material cost and the processing cost.

Finally, it should be noted that, although the embodiments have been described in the text and the drawings, the scope of the application is not limited thereby. The technical scheme generated by replacing or modifying the equivalent structure or equivalent flow by utilizing the content recorded in the text and the drawings of the specification based on the essential idea of the application, and the technical scheme of the embodiment directly or indirectly implemented in other related technical fields are included in the patent protection scope of the application.

Claims

1. A knife roll device, comprising:

the bearing seat assembly comprises a bearing and a bearing seat, the bearing is arranged on the bearing seat, and the bearing seat is arranged in a side plate slideway of the die carrier;

the knife roll is arranged in the bearing, the knife roll comprises a knife roll body and a cutting piece, the cutting piece is arranged on the knife roll body, and the section of the knife roll body is flat.

2. The knife roll device of claim 1, wherein the knife roll body is integrally formed with the cutting member, the cutting member comprising two or more blades, the two or more blades being located on the same outer circle.

3. The knife roll device of claim 2, wherein the angle between the blade and the knife roll axis is set at a predetermined angle.

4. A knife roller device as claimed in claim 3, wherein the predetermined angle is 0 degrees to 2 degrees.

5. The knife roll device of claim 2, wherein the knife tip angle of the knife blade is 30 degrees to 120 degrees.

6. A wide web cutting apparatus, comprising:

the die carrier comprises a side plate and a top plate, wherein a side plate slideway is arranged on the side plate;

an anvil roll device comprising an anvil roll mounted on the side plates;

the knife roller device of any one of claims 1 to 5;

and the pressurizing device is arranged on the top plate, the output end of the pressurizing device is connected with the knife roller device, and the pressurizing device is used for cutting the adhesive material between the anvil roller device and the knife roller device by pressurizing the knife roller device.

7. The wide web severing apparatus of claim 6, wherein the anvil roll comprises a base block having a recess formed therein, an insert, and a fastener, the insert being mounted in the recess by the fastener.

8. The wide web material cutting apparatus of claim 6, further comprising an adjusting device, the adjusting device comprising an adjusting wedge, an adjusting screw and a fixing base, the adjusting wedge being sleeved on the adjusting screw, the fixing base being sleeved on one end of the adjusting screw, the fixing base being mounted on the side plate;

and the adjusting screw is used for adjusting the position of the adjusting wedge block so as to adjust the center distance between the knife roll and the anvil roll.

9. The wide-width material cutting apparatus according to claim 8, wherein the adjusting device further comprises a tightening screw and a locking nut, a radial screw hole communicated to the adjusting screw is formed in the side wall of the fixing base, the tightening screw is locked into the radial screw hole and tightens the adjusting screw, the locking nut is sleeved at one end, far away from the fixing base, of the adjusting screw, and the locking nut is used for being abutted and fixed with the side plate.

10. The wide web material cutting apparatus of claim 8, wherein the knife roller device further comprises a protection step, the protection step being installed at both sides of the knife roller body.