CN219255815U - Wide rotary cutting device and lower anvil roll mechanism thereof - Google Patents

Abstract

The utility model relates to a wide rotary cutting device and a lower anvil roll mechanism thereof, comprising a lower anvil roll, a supporting seat and a bearing assembly, wherein the lower anvil roll is arranged on a die carrier of the wide rotary cutting device; the supporting seat is connected with the die carrier of the wide rotary cutting device and is used for supporting the lower anvil roll; the bearing assemblies are sleeved at two ends of the lower anvil roll and are arranged at the inner sides of the protection steps of the lower anvil roll mechanism, each bearing assembly comprises a bearing and a bearing pressing plate, the bearing is arranged on a mandrel of the lower anvil roll, the bearing pressing plates are connected with the supporting seat through first screws, and bearing holes are formed between the bearing pressing plates and the supporting seat and are used for bearing installation; the first screw is used for adjusting the interference between the bearing hole and the bearing. When in actual use, the interference of the bearing hole and the bearing and the force of the bearing pressing plate for pressing the bearing can be adjusted through the first screw, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use.

Description

Wide rotary cutting device and lower anvil roll mechanism thereof

Technical Field

The application relates to the field of rolling die cutting equipment, in particular to a wide rotary cutting device and a lower anvil roll mechanism thereof.

Background

At present, the application of the rotary die cutting technology is more and more widespread, and the application industry relates to industries of non-woven fabrics, leather products, plastic products, food and medicine packaging, household paper, sanitary articles and the like. The working principle of the wide rotary cutting device is as follows: the upper knife roll bearing seat in the slide ways at two sides of the die carrier is pushed to move downwards by a pressurizing mechanism (such as a cylinder and a screw rod), so that the outer circle of the upper knife roll body is contacted with the outer circle cutting edge of the lower anvil roll body, a certain working pressure is generated, and the material passing between the upper knife roll and the lower anvil roll is cut into a required shape.

The existing lower anvil roller bearing assembly mainly comprises a bearing and a bearing sleeve, wherein the bearing sleeve is sleeved on the bearing, and the bearing sleeve is connected with the supporting seat. Because the existing bearing sleeve is integrally formed, the size is selected according to the size of the bearing, the force of the bearing sleeve acting on the bearing is fixed, and the bearing sleeve is inconvenient to adjust and use according to actual conditions.

Disclosure of Invention

In view of the above problems, the application provides a wide rotary cutting device and a lower anvil roll mechanism thereof, which are used for solving the problems that the prior bearing sleeve is integrally formed, the size is selected according to the size of a bearing, the force of the bearing sleeve acting on the bearing is fixed, and the subsequent adjustment, use, maintenance and replacement according to actual conditions are inconvenient.

In order to achieve the above object, the present inventors provide a lower anvil roll mechanism comprising a lower anvil roll, a supporting seat, and a bearing assembly, wherein the lower anvil roll is mounted on a die carrier of a wide rotary cutting device; the supporting seat is connected with the die carrier of the wide rotary cutting device and is used for supporting the lower anvil roll; the bearing assemblies are sleeved at two ends of the lower anvil roll and are arranged at the inner sides of the protection steps of the lower anvil roll mechanism, each bearing assembly comprises a bearing and a bearing pressing plate, the bearing is arranged on a mandrel of the lower anvil roll, the bearing pressing plates are connected with the supporting seat through first screws, and bearing holes are formed between the bearing pressing plates and the supporting seat and are used for bearing installation; the first screw is used for adjusting the interference between the bearing hole and the bearing.

In some embodiments, the bearing assembly further comprises a spacer, the spacer being disposed between the bearing platen and the bearing support, the first screw being used to adjust the interference of the bearing bore with the bearing through the spacer.

In some embodiments, the bearing assembly further comprises a bearing cap mounted on both sides of the bearing platen, the bearing cap for limiting axial movement of the bearing.

In some embodiments, the lower anvil roll mechanism further comprises a transition sleeve mounted over the bearing platen, the transition sleeve having a diameter that is consistent with the diameter of the outer circumference of the lower anvil roll.

Unlike the prior art, the above technical solution provides that the bearing pressing plate is detachably connected with the supporting seat (connected by the first screw) and forms a bearing hole, and the bearing hole is specially used for bearing installation. When in actual use, the interference of the bearing hole and the bearing and the force of the bearing pressing plate for pressing the bearing can be adjusted through the first screw, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use. In addition, the bearing assembly is moved to the inner side of the protection step, so that the stress point position of the lower anvil roll is moved, the stress point span is reduced, the rigidity is greatly improved, the flexible deformation amount of the lower anvil roll is greatly reduced, the flexible deformation direction of the lower anvil roll is changed, the flexible deformation direction of the lower anvil roll is the same as that of the upper knife roll, and the flexible deformation of the lower anvil roll and the flexible deformation of the upper knife roll are mutually counteracted.

In order to achieve the above object, the present inventors also provide a wide rotary cutting apparatus comprising a die frame, a lower anvil roll mechanism, an upper cutter roll mechanism, and a pressurizing mechanism as any one of the above provided by the present inventors; the die carrier comprises a top plate, a bottom plate, a lower seat plate and side plates arranged between the bottom plate and the top plate; the lower anvil roll mechanism is arranged on the side plate slideway; the upper knife roll mechanism is arranged on the side plate slideway and is positioned above the lower anvil roll mechanism; the pressurizing mechanism is arranged on the top plate, the output end of the pressurizing mechanism is connected with the upper knife roller mechanism, and the pressurizing mechanism is used for cutting materials between the upper knife roller and the lower anvil roller by pressurizing the upper knife roller mechanism.

In some embodiments, the support base is secured to the base plate by a second screw.

In some embodiments, the bearing block is secured to the side plate by a third screw.

In some embodiments, the wide rotary cutting device further comprises a buffering assembly, the buffering assembly comprises a buffering piece and a fixing pin, the fixing pin is installed on the lower seat plate, the buffering piece is sleeved on the fixing pin, and the buffering assembly is used for reducing the weight of the upper knife roll.

In some embodiments, the wide rotary cutting device further comprises an adjusting assembly, the adjusting assembly comprises a wedge block, an adjusting screw rod and a fixing seat, the 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 installed on the side plate; the adjusting screw is used for adjusting the position of the wedge block so as to adjust the center distance between the upper knife roll and the lower knife roll.

In some embodiments, the adjusting assembly further comprises a tightening screw and a locking nut, a radial screw hole communicated with 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.

Unlike the prior art, the above technical solution provides that the bearing pressing plate is detachably connected with the supporting seat (connected by the first screw) and forms a bearing hole, and the bearing hole is specially used for bearing installation. When in actual use, the interference of the bearing hole and the bearing and the force of the bearing pressing plate for pressing the bearing can be adjusted through the first screw, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use. In addition, the bearing assembly is moved to the inner side of the protection step, so that the stress point position of the lower anvil roll is moved, the stress point span is reduced, the rigidity is greatly improved, the flexible deformation amount of the lower anvil roll is greatly reduced, the flexible deformation direction of the lower anvil roll is changed, the flexible deformation direction of the lower anvil roll is the same as that of the upper knife roll, and the flexible deformation of the lower anvil roll and the flexible deformation of the upper knife roll are mutually counteracted.

The foregoing summary is merely an overview of the present application, and is provided to enable one of ordinary skill in the art to make more clear the present application and to be practiced according to the teachings of the present application and to make more readily understood the above-described and other objects, features and advantages of the present application, as well as by reference to the following detailed description and accompanying drawings.

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 force-bearing schematic diagram of a wide rotary cutting device according to the background art;

FIG. 2 is a schematic force diagram of a wide rotary cutting device according to an embodiment;

FIG. 3 is a schematic view of a connection between a bearing platen and a bearing support according to an embodiment;

FIG. 4 is an enlarged view of FIG. 2A;

FIG. 5 is a left side view of the wide rotary cutting apparatus according to the embodiment;

FIG. 6 is an enlarged view of B in FIG. 5;

fig. 7 is a schematic structural view of an adjusting assembly according to an embodiment.

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

100. a wide rotary cutting device;

1. a lower anvil roll mechanism;

11. a lower anvil roll;

12. the supporting seat;

121. a second screw;

122. a third screw;

13. a bearing assembly;

131. a bearing;

132. a bearing pressing plate;

133. a first screw;

134. a bearing hole;

135. a bearing cap;

136. a transition sleeve;

14. the protection step;

2. a mould frame;

21. a top plate;

22. a bottom plate;

23. a lower seat plate;

24. a side plate;

3. an upper knife roll mechanism;

4. a pressurizing mechanism;

5. a buffer assembly;

51. a buffer member;

52. a fixing pin;

6. an adjustment assembly;

61. wedge blocks;

62. adjusting a screw;

63. a fixing seat;

64. tightly pushing the screw;

65. and (5) locking the nut.

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 used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples and are not intended to limit the scope of protection 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 present 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 the embodiments 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 description of specific embodiments only and is not intended to limit the present 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 there may be three relationships, e.g., 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 this 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 application 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 the "examination guideline," the expressions "greater than", "less than", "exceeding", and the like are understood to exclude the present number in this application; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of the 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 groups", "a plurality of" and the like, unless specifically defined otherwise.

In the description of the 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 terms of orientation or positional relationship based on the specific embodiments or figures, and are merely for convenience of description of the specific embodiments of the present application or ease of understanding of the reader, and do not 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 are not to be construed as limiting of the embodiments of the present application.

Unless specifically stated or limited otherwise, in the description of the embodiments of the present application, the terms "mounted," "connected," "affixed," "disposed," and the like are to 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 meanings 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 the specific circumstances.

Referring to fig. 2, the present embodiment relates to a wide rotary cutting apparatus 100, which includes a die frame 2, a lower anvil roller mechanism 1, an upper cutter roller mechanism 3, and a pressurizing mechanism 4; the mold frame 2 includes a top plate 21, a bottom plate 22, a lower seat plate 23, and side plates 24 provided between the bottom plate 22 and the top plate 21; the lower anvil roll mechanism 1 is arranged on a slideway of the side plate 24; the upper knife roller mechanism 3 is arranged on the slide way of the side plate 24 and is positioned above the lower anvil roller mechanism 1; the pressing mechanism 4 is mounted on the top plate 21, and the output end thereof is connected to the upper cutter roller mechanism 3, and the pressing mechanism 4 is configured to cut the material between the upper cutter roller and the lower anvil roller by pressing the upper cutter roller mechanism 3.

The mold frame 2 comprises a top plate 21, a bottom plate 22, a lower seat plate 23 and side plates 24, wherein the top plate 21 and the bottom plate 22 are connected through the side plates 24, the side plates 24 are provided with two pieces, and the left side and the right side are respectively provided with one piece. The side plate 24 is provided with a slide way for installing an upper knife roller bearing 131 seat assembly of the upper knife roller mechanism 3, so that the upper knife roller can be driven to move upwards or downwards in the slide way under the action of the pressurizing mechanism 4.

The upper knife roll mechanism 3 and the lower anvil roll mechanism 1 are respectively and rotatably arranged on the die frame 2 along the horizontal direction through an upper knife roll bearing 131 seat assembly and a bearing 131 seat assembly. The upper knife roll is arranged above the lower anvil roll mechanism and can move up and down along the slide ways on the two sides of the die carrier 2. Wherein the top plate 21 is located above the upper knife roller mechanism 3, the bottom plate 22 is located below the lower anvil roller mechanism, and the side plates 24 are available for mounting of the upper knife roller mechanism 3 as well as the lower anvil roller mechanism 1.

The pressing mechanism 4 is mounted on the top plate 21, and the pressing direction of the pressing mechanism 4 is set downward. Alternatively, the pressurizing element of the pressurizing mechanism 4 may be a cylinder or a screw.

The working principle is as follows: the upper knife roll bearing seat in the slideway is pushed to move downwards by the pressurizing mechanism 4, so that the outer circle of the upper knife roll body is contacted with the outer circle cutting edge of the lower anvil roll 11 roll body, a certain working pressure is generated, and the material passing through the gap between the upper knife roll mechanism 3 and the lower anvil roll mechanism is cut into a required shape.

The above technical solution provides that the bearing pressing plate 132 is detachably connected with the supporting seat 12 (connected by the first screw 133) and forms a bearing hole 134, and the bearing hole 134 is specially used for installing the bearing 131. In actual use, the interference between the bearing hole 134 and the bearing 131 and the force of the bearing pressing plate 132 pressing the bearing 131 can be adjusted through the first screw 133, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use. In addition, by moving the bearing assembly 13 inward of the protection step 14, the stress point of the lower anvil roll 11 is moved inward, the span of the stress point is reduced, the rigidity is greatly improved, the flexible deformation amount of the lower anvil roll 11 is greatly reduced, the flexible deformation direction of the lower anvil roll 11 is changed, the flexible deformation direction of the lower anvil roll 11 is the same as that of the upper knife roll, and the flexible deformation of the lower anvil roll 11 and the flexible deformation of the upper knife roll are mutually counteracted.

Optionally, as shown in fig. 3, bearing block 12 is secured to base plate 22 by a second screw 121, according to some embodiments of the present application. To facilitate the disassembly and assembly of the support base 12, the support base 12 is configured to be removably mounted to the base plate 22. Optionally, the support block 12 is secured to the base plate 22 by a second screw 121.

Optionally, as shown in fig. 3, the bearing block 12 is secured to the side plate 24 by a third screw 122, according to some embodiments of the present application. Similarly, to facilitate the disassembly and assembly of the support base 12, the support base 12 is detachably mounted on the side plate 24. Optionally, the bearing block 12 is secured to the side plate 24 by a third screw 122.

According to some embodiments of the present application, optionally, as shown in fig. 5 and 6, the wide rotary cutting apparatus 100 further includes a buffer assembly 5, the buffer assembly 5 includes a buffer member 51 and a fixing pin 52, the fixing pin 52 is installed on the lower seat plate 23, the buffer member 51 is sleeved on the fixing pin 52, and the buffer assembly 5 is used for reducing the weight of the upper cutter roller.

In order to avoid the edge collapse or edge rolling of the upper cutter roll due to the dead weight of the upper cutter roll. The buffer assembly 5 is arranged, the buffer assembly 5 comprises a buffer piece 51 and a fixing pin 52, the buffer piece 51 is sleeved on the fixing pin 52, the fixing pin 52 is arranged on the lower seat plate 23, and the lower seat plate 23 is a connecting piece between the buffer assembly 5 and the bottom plate 22. The cushioning member 51 has elasticity, and can be elastically contracted when receiving pressure and restored to an original shape when the pressure is removed, and the cushioning member 51 may be made of a metal elastic material such as a metal cushioning member, or may be made of a non-metal elastic material such as rubber or silicone. Alternatively, the buffer 51 may be a spring.

The elastic force of the buffer piece 51 counteracts the gravity of the upper knife roll, and the problem that the upper cutting edge is damaged in the installation and use processes is effectively avoided.

Optionally, as shown in fig. 7, the wide rotary cutting apparatus 100 further includes an adjusting assembly 6, where the adjusting assembly 6 includes a wedge 61, an adjusting screw 62, and a fixing base 63, the wedge 61 is sleeved on the adjusting screw 62, the fixing base 63 is sleeved on one end of the adjusting screw 62, and the fixing base 63 is mounted on the side plate 2424; the adjusting screw 62 is used for adjusting the position of the wedge 61 so as to adjust the center distance between the upper knife roll and the lower knife roll. The adjusting component 6 is used for adjusting the center distance between the upper cutter roller and the lower anvil roller 11 and accurately fixing the position of the upper cutter roller, so that the center distance between the upper cutter roller and the lower anvil roller 11 is prevented from being changed due to stress, vibration and the like in the high-speed die cutting process.

According to some embodiments of the present application, optionally, as shown in fig. 7, the adjusting assembly 6 further includes a tightening screw 64 and a locking nut 65, a radial screw hole communicated to the adjusting screw 62 is formed on a side wall of the fixing base 63, the tightening screw 64 is locked into the radial screw hole and tightens the adjusting screw 62, the locking nut 65 is sleeved on one end of the adjusting screw 62 away from the fixing base 63, and the locking nut 65 is used for being abutted to and fixed with the connecting side plate 2424.

Because the adjusting screw 62 and the fixing seat 63 axially have a gap, in the process of rotary die cutting or in the process of adjusting the distance between the upper cutter roller die and the lower cutter roller die, the adjusting screw 62 easily generates axial movement to drive the inclined block to axially move, so that the distance between the upper cutter roller die and the lower cutter roller die is changed, the adjusting precision is low, and the normal die cutting of the cutter roller die can be influenced. Thus, the adjustment assembly 6 also includes a set screw 64 and a lock nut 65.

Through setting up tight screw 64 in the fixing base 63, make tight screw 64 in top and adjusting screw 62 support to lean on fixedly, in order to prevent adjusting screw 62 at rotatory cross cutting in-process rotation, make the sloping block produce axial displacement, through setting up lock nut 65 in the one end that adjusting screw 62 kept away from fixing base 63, taut adjusting screw 62 and fixing base 63, eliminate the axial clearance between adjusting screw 62 tip and the fixing base 63, and then accomplish effectively preventing adjusting screw 62 axial float, prevent the interval between upper and lower knife roller and change, improve adjusting component's regulation precision, guarantee the normal work of broad width rotary cutting device 100.

Referring to fig. 1 to 4, the present embodiment further relates to a lower anvil roll mechanism 1, including a lower anvil roll 11, a supporting seat 12 and a bearing assembly 13, wherein the lower anvil roll 11 is mounted on a die frame 2 of a wide rotary cutting device 100; the supporting seat 12 is connected with the die frame 2 of the wide rotary cutting device 100, and the supporting seat 12 is used for supporting the lower anvil roll 11; the bearing assemblies 13 are sleeved at two ends of the lower anvil roll 11 and are arranged at the inner sides of the protection steps 14 of the lower anvil roll mechanism 1, the bearing assemblies 13 comprise bearings 131 and bearing pressing plates 132, the bearings 131 are arranged on the core shafts of the lower anvil roll 11, the bearing pressing plates 132 are connected with the supporting seats 12 through first screws 133, bearing holes 134 are formed between the bearing pressing plates 132 and the supporting seats 12, and the bearing holes 134 are used for mounting the bearings 131; wherein, adjust first screw 133 is used for adjusting bearing hole 134 and bearing 131's interference.

The cross section of the bearing pressing plate 132 is semicircular, and the joint of the supporting seat 12 and the bearing pressing plate 132 is semicircular. The semicircle of the bearing pressing plate 132 and the semicircle of the supporting seat 12 together form a bearing hole 134, and the bearing hole 134 is used for installing and placing the bearing 131. Wherein, the two ends of the bearing pressing plate 132 are detachably connected with the supporting seat 12 through the first screw 133. In some embodiments, the removable connection may also be a bolted connection or the like.

As shown in fig. 1, in the conventional wide rotary cutting apparatus 100, working pressure is applied to bearing positions on both sides of an upper cutter roll and a lower anvil roll, a span between the bearing positions on both sides is large, rigidity is poor, flexible deformation caused by stress is large, and flexible deformation directions of the upper cutter roll and the lower anvil roll are opposite, so that the upper cutter roll and the lower anvil roll are separated from each other, and cutting is easy to be continued. Therefore, the bearing assembly 13 is moved inward of the protection step 14, so that the stress point of the lower anvil roll 11 is moved inward, the span of the stress point is reduced, the rigidity is greatly improved, the flexible deformation amount of the lower anvil roll 11 is greatly reduced, the flexible deformation direction of the lower anvil roll 11 is changed, the flexible deformation direction of the lower anvil roll 11 is the same as that of the upper knife roll, and the flexible deformation of the lower anvil roll 11 and the flexible deformation of the upper knife roll are mutually counteracted.

The above technical solution provides that the bearing pressing plate 132 is detachably connected with the supporting seat 12 (connected by the first screw 133) and forms a bearing hole 134, and the bearing hole 134 is specially used for installing the bearing 131. In actual use, the interference between the bearing hole 134 and the bearing 131 and the force of the bearing pressing plate 132 pressing the bearing 131 can be adjusted through the first screw 133, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use.

Optionally, according to some embodiments of the present application, the bearing assembly 13 further comprises a spacer, wherein the spacer is disposed between the bearing platen 132 and the support base 12, and the first screw 133 is used to adjust the interference between the bearing hole 134 and the bearing 131 through the spacer.

Since the size of the bearing 131 is generally fixed, the interference of the bearing hole 134 with the bearing 131 can be adjusted by the spacer. In actual use, the force and the gap between the bearing pressing plate 132 and the supporting seat 12, by which the bearing pressing plate 132 presses the bearing 131, can be adjusted through the gasket.

Optionally, as shown in fig. 4, according to some embodiments of the present application, the bearing assembly 13 further includes a bearing cover 135, and the bearing cover 135 is mounted on both sides of the bearing platen 132, and the bearing cover 135 is used to limit the axial movement of the bearing 131.

Optionally, as shown in fig. 4, according to some embodiments of the present application, the lower anvil roll mechanism 1 further comprises a transition sleeve 136, the transition sleeve 136 being mounted above the bearing plate 132, the diameter of the transition sleeve 136 being consistent with the outer diameter of the lower anvil roll 11.

The lower anvil roll 11 is not only rotated relative to the upper knife roll under a certain working pressure to cut out a product (composite product forming), but also plays a role of supporting a flexible material (e.g., nonwoven fabric, which is generally wide in material width). The provision of the transition sleeve 136 having the same diameter as the outer diameter of the lower anvil roll 11 serves to support the flexible material as the unitary lower anvil roll 11, or the lower anvil roll 11 tends to sag and cause the material to sag.

Unlike the prior art, the above solution provides for the bearing platen 132 to be removably connected to the support block 12 (by means of the first screw 133) and for the bearing hole 134 to be formed, the bearing hole 134 being dedicated for the installation of the bearing 131. In actual use, the interference between the bearing hole 134 and the bearing 131 and the force of the bearing pressing plate 132 pressing the bearing 131 can be adjusted through the first screw 133, so that the actual use requirement is met. The novel portable electric power generation device is simple in structure, convenient to assemble and disassemble and convenient to use. In addition, by moving the bearing assembly 13 inward of the protection step 14, the stress point of the lower anvil roll 11 is moved inward, the span of the stress point is reduced, the rigidity is greatly improved, the flexible deformation amount of the lower anvil roll 11 is greatly reduced, the flexible deformation direction of the lower anvil roll 11 is changed, the flexible deformation direction of the lower anvil roll 11 is the same as that of the upper knife roll, and the flexible deformation of the lower anvil roll 11 and the flexible deformation of the upper knife roll are mutually counteracted.

Finally, it should be noted that, although the foregoing embodiments have been described in the text and the accompanying drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical schemes generated by replacing or modifying equivalent structures or equivalent flows based on the essential idea of the application and by utilizing the contents recorded in the text and the drawings of the application, and the technical schemes of the embodiments are directly or indirectly implemented in other related technical fields, and the like, are included in the patent protection scope of the application.

Claims (10)

1. A lower anvil roll mechanism, comprising:

the lower anvil roll is arranged on a die carrier of the wide rotary cutting device;

the supporting seat is connected with the die frame of the wide rotary cutting device and is used for supporting the lower anvil roll;

the bearing assemblies are sleeved at two ends of the lower anvil roll and are arranged at the inner sides of the protection steps of the lower anvil roll mechanism, the bearing assemblies comprise bearings and bearing pressing plates, the bearings are arranged on the mandrel of the lower anvil roll, the bearing pressing plates are connected with the supporting seats through first screws, bearing holes are formed between the bearing pressing plates and the supporting seats, and the bearing holes are used for mounting the bearings;

and the first screw is used for adjusting the interference of the bearing hole and the bearing.

2. The lower anvil roll mechanism according to claim 1, wherein the bearing assembly further comprises a spacer, the spacer being disposed between the bearing platen and the support base, the first screw being used to adjust the amount of interference of the bearing bore with the bearing through the spacer.

3. The lower anvil roll mechanism according to claim 1, wherein the bearing assembly further comprises bearing caps mounted on both sides of the bearing platen, the bearing caps being adapted to limit axial movement of the bearings.

4. The lower anvil roll mechanism according to claim 1, further comprising a transition sleeve mounted above the bearing platen, the transition sleeve having a diameter that is consistent with the diameter of the outer circumference of the anvil roll.

5. A wide rotary cutting apparatus, comprising:

the die carrier comprises a top plate, a bottom plate, a lower seat plate and side plates arranged between the bottom plate and the top plate;

the lower anvil roll mechanism of any one of claims 1-4 mounted on the side plate slide;

the upper knife roll mechanism is arranged on the side plate slideway and is positioned above the lower anvil roll mechanism;

and the pressurizing mechanism is arranged on the top plate, the output end of the pressurizing mechanism is connected with the upper knife roller mechanism, and the pressurizing mechanism is used for cutting materials between the upper knife roller and the lower anvil roller by pressurizing the upper knife roller mechanism.

6. The wide rotary cutting apparatus according to claim 5, wherein the support base is fixed to the base plate by a second screw.

7. The wide rotary cutting apparatus according to claim 5, wherein the bearing support is fixed to the side plate by a third screw.

8. The wide rotary cutting apparatus of claim 5, further comprising a buffer assembly comprising a buffer and a fixed pin, the fixed pin being mounted on the lower saddle, the buffer being sleeved on the fixed pin, the buffer assembly being configured to reduce the weight of the upper knife roll.

9. The wide rotary cutting device according to claim 5, further comprising an adjusting assembly, wherein the adjusting assembly comprises a wedge block, an adjusting screw rod and a fixing seat, the wedge block is sleeved on the adjusting screw rod, the fixing seat is sleeved on one end of the adjusting screw rod, and the fixing seat is mounted on the side plate;

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

10. The wide rotary cutting apparatus according to claim 9, wherein the adjusting assembly further comprises a tightening screw and a locking nut, a radial screw hole is formed in a side wall of the fixing base and is communicated with the adjusting screw, 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 side plate.

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