CN219582955U

CN219582955U - Novel circular knife tool

Info

Publication number: CN219582955U
Application number: CN202320540605.4U
Authority: CN
Inventors: 李彦杰; 陶德仁
Original assignee: Dongguan Xingrui New Energy Co ltd
Current assignee: Dongguan Xingrui New Energy Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-25
Anticipated expiration: 2033-03-20

Abstract

The utility model relates to a novel circular knife tool in the technical field of circular knife tools, which comprises a knife rest and a circular knife, wherein the knife rest and the circular knife are of annular hollow structures, the circular knife is arranged on one side of the knife rest, a limiting ring is arranged on one side of the knife rest and protrudes towards one side of the knife rest, a buffer groove is pre-arranged on the limiting ring and the side wall of the knife rest, the center of the circular knife is sleeved in the buffer groove, the circular knife is positioned between the side wall of the knife rest and the limiting ring, an elastic reset piece is arranged between the circular knife and the side wall of the knife rest, the elastic reset piece can uniformly abut the inner ring of the circular knife on the inner wall of the limiting ring, and the contact surface between the circular knife and the knife rest is smoother; when the round knife encounters a material with stronger toughness, the round knife can buffer and unload force to one side of the elastic reset piece, and the round knife can properly apply pressure on the elastic reset piece, so that the risk of damage to the round knife is reduced.

Description

Novel circular knife tool

Technical Field

The utility model relates to the technical field of circular knife tools, in particular to a novel circular knife tool.

Background

The circular knife tool is a core component which is applied to the inside of a slitting machine and is used for longitudinally slitting wide coiled materials, and is commonly used in industries required by slitting leather, cloth, plastics, films and the like.

The existing circular knife tool is like the structure in fig. 1, generally comprises a knife rest with an annular hollow structure, a circular knife with an annular hollow structure and a fixing bolt between the circular knife and the knife rest, wherein one side of the knife rest and one side of the circular knife are respectively provided with a mounting threaded hole, the mounting modes of the existing knife rest and the circular knife are matched and connected with the mounting threaded holes through the fixing bolt, but the structure has the following defects that firstly, when the circular knife tool is mounted through bolts, the condition that the contact surface between the circular knife and the knife rest is uneven can occur due to inconsistent tightness degree of a plurality of bolts, so that the circular knife and a plane where materials are located cannot keep a vertical structure; 2. the knife rest is in screwed rigid connection with the circular knife, when the circular knife encounters a material with strong toughness, no buffering structure exists between the knife rest and the circular knife, the circular knife can be bent in the knife rest, and the circular knife is damaged.

Therefore, a new circular knife tool is needed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a novel circular knife tool, which aims to better solve the technical problem that a buffering function cannot be achieved between a knife rest and a circular knife and meanwhile flatness between the circular knife and the knife rest is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a novel circular knife cutter, including knife rest and circular knife, knife rest and circular knife are annular hollow structure, the circular knife sets up in one side of knife rest, one side of knife rest is equipped with the spacing ring, the spacing ring is annular hollow structure, the spacing ring is protruding to one side of knife rest, the spacing ring is equipped with a dashpot in advance with the lateral wall of knife rest, the center of circular knife cup joints in the inside of dashpot, the circular knife is located between lateral wall and the spacing ring of knife rest, be equipped with the elasticity piece that resets between the lateral wall of circular knife and knife rest, one side accessible elasticity piece that resets removes the buffering in the inside of dashpot, the opposite side accessible elasticity of circular knife resets the inner wall that carries out the butt to the spacing ring under the elastic action.

In the above description, as a further scheme, the inner ring of the circular knife is a buffer portion, the outer ring of the circular knife is a blade portion for dividing the material, one side of the buffer portion is abutted with the elastic resetting piece, and one side of the buffer portion is abutted with the inner wall of the limiting ring.

In the above description, as a further scheme, the elastic reset piece is composed of a reset spring, the head and the tail of the reset spring are fixedly connected, the reset spring is in an annular structure, and the reset spring is inlaid between the circular knife and the knife rest.

In the above description, as a further scheme, still be equipped with the snap ring between spacing ring and the circular knife, the snap ring is annular hollow structure, and the centre gripping opening has still been seted up at the middle part of snap ring, and the both ends of snap ring are the clamping end, and the centre gripping hole has been seted up at the middle part of clamping end, and the snap ring accessible clamping end carries out assorted with outside calliper, and one side of snap ring is contradicted with one side that the circular knife kept away from elastic restoring piece, and the opposite side of snap ring carries out the butt with the inner wall of spacing ring.

In the above description, as a further scheme, the inner wall of the tool rest is provided with a positioning through hole, the inside of the positioning through hole is provided with a positioning bolt, the positioning bolt is in threaded connection with the positioning through hole, the bottom end of the positioning bolt can extend to the center of the tool rest, and the bottom end of the positioning bolt can be fixedly connected with an external transmission shaft.

In the above description, as a further aspect, the axis of the circular knife is kept on the same line as the axis of the knife holder, and the axis of the limit ring is kept on the same line as the axes of the knife holder and the circular knife.

Compared with the prior art, the utility model has the beneficial effects that:

according to the novel circular knife tool, the raised limiting ring is arranged on one side of the knife rest, the buffer groove is pre-arranged on the side wall of the limiting ring and the side wall of the knife rest, one side of the circular knife can move and buffer in the buffer groove through the elastic reset piece, the first elastic reset piece can uniformly abut against the inner ring of the circular knife on the inner wall of the limiting ring, so that the gap between the circular knife and the knife rest is uniform, and the contact surface between the circular knife and the knife rest is smoother; and when encountering materials with stronger toughness, the circular knife can buffer and unload force to one side of the elastic resetting piece, and the circular knife can properly apply pressure on the elastic resetting piece, so that the risk of damage to the circular knife is reduced.

Drawings

FIG. 1 is a schematic perspective view of a novel circular knife tool according to the present utility model;

FIG. 2 is a schematic exploded view of a novel circular knife tool according to the present utility model;

FIG. 3 is a schematic view of the structure of the novel circular knife tool according to the present utility model at the back view angle;

FIG. 4 is a schematic structural view of a tool holder in a novel circular knife tool according to the present utility model;

FIG. 5 is a schematic view of a prior art circular knife;

FIG. 6 is an exploded view of a prior art circular knife tool;

in the figure: the tool comprises a tool rest 1, a positioning through hole 101, a limiting ring 102, a buffer groove 103, a round tool 2, a buffer part 201, a knife edge 202, a clamping ring 3, a clamping end 301, a clamping opening 302, a clamping hole 303, a return spring 4, a positioning bolt 5, a fixing bolt 6 and a mounting threaded hole 61.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-4, a novel circular knife tool in its implementation includes a knife rest 1 and a circular knife 2, where the knife rest 1 and the circular knife 2 are in an annular hollow structure, the circular knife 2 is disposed on one side of the knife rest 1, a limiting ring 102 is disposed on one side of the knife rest 1, the limiting ring 102 is in an annular hollow structure, the limiting ring 102 protrudes toward one side of the knife rest 1, a buffer groove 103 is pre-disposed on a side wall of the limiting ring 102 and a side wall of the knife rest 1, a center of the circular knife 2 is sleeved in the buffer groove 103, an axis of the circular knife 2 and an axis of the knife rest 1 are kept on the same straight line, and an axis of the limiting ring 102 and an axis of the knife rest 1 and an axis of the circular knife 2 are kept on the same straight line.

The circular knife 2 is located between the lateral wall of the knife rest 1 and the limiting ring 102, an elastic reset piece is arranged between the circular knife 2 and the lateral wall of the knife rest 1, the inner ring of the circular knife 2 is a buffer part 201, the outer ring of the circular knife 2 is a knife edge part 202 for dividing materials, one side of the buffer part 201 of the circular knife 2 can move and buffer in the buffer groove 103 through the elastic reset piece, the other side of the buffer part 201 of the circular knife 2 can abut against the inner wall of the limiting ring 102 under the elastic action of the elastic reset piece, the gap between the circular knife 2 and the knife rest 1 is uniform, the contact surface between the circular knife 2 and the knife rest 1 is smoother, the circular knife 2 can buffer and unload force to one side of the elastic reset piece, and the circular knife 2 can properly apply pressure on the elastic reset piece, so that the risk of damage of the circular knife 2 is reduced.

The elastic reset piece comprises reset spring 4, and reset spring 4 carries out fixed connection from beginning to end, and reset spring 4 is annular structure, and reset spring 4 inlays between circular knife 2 and knife rest 1, and the annular structure of reset spring 4 can evenly apply reset spring 4 self elastic stress to one side of buffer 201 of circular knife 2 for clearance between circular knife 2 and knife rest 1 is even, and the contact surface between circular knife 2 and knife rest 1 is more even.

Still be equipped with snap ring 3 between spacing ring 102 and the circular knife 2, snap ring 3 is annular hollow structure, clamping opening 302 has still been seted up at the middle part of snap ring 3, the both ends of snap ring 3 are clamping end 301, clamping hole 303 has been seted up at the middle part of clamping end 301, snap ring 3 accessible clamping end 301 carries out assorted with outside calliper, one side that elastic restoring piece was kept away from to circular knife 2 is contradicted to one side of snap ring 3, the opposite side and the inner wall of spacing ring 102 carry out the butt, inlay between spacing ring 102 and circular knife 2 through snap ring 3, make the clearance between circular knife 2 and the buffer tank 103 shrink, the rate of tension between circular knife 2 and the buffer tank 103 has been improved, make circular knife 2 install in buffer tank 103 more firmly.

The inner wall of the tool rest 1 is provided with a positioning through hole 101, the inside of the positioning through hole 101 is provided with a positioning bolt 5, the bottom end of the positioning bolt 5 can extend to the center of the tool rest 1, the bottom end of the positioning bolt 5 can be fixedly connected with an external transmission shaft (not shown), a reset spring 4, a circular knife 2 and a clamping ring 3 are sequentially installed inside a buffer groove 103 in the tool rest 1, a reassembled circular knife tool is sleeved in the external transmission shaft (not shown), the inside of the positioning through hole 101 is screwed through the positioning bolt 5, the bottom end of the positioning bolt 5 is fixedly connected with the middle of the external transmission shaft (not shown), and the circular knife tool can rotate along with the rotation of the external transmission shaft (not shown).

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. The utility model provides a novel circular knife cutter, includes knife rest and circular knife, and knife rest and circular knife are annular hollow structure, and the circular knife setting is in one side of knife rest, its characterized in that: one side of the tool rest is provided with a limiting ring, the limiting ring is of an annular hollow structure, the limiting ring protrudes towards one side of the tool rest, a buffer groove is reserved on the side wall of the limiting ring and the side wall of the tool rest, the center of the circular tool is sleeved in the buffer groove, the circular tool is located between the side wall of the tool rest and the limiting ring, an elastic reset piece is arranged between the circular tool and the side wall of the tool rest, one side of the circular tool can move and buffer in the buffer groove through the elastic reset piece, and the other side of the circular tool can abut against the inner wall of the limiting ring under the elastic action of the elastic reset piece.

2. The novel circular knife tool according to claim 1, wherein: the inner ring of the circular knife is a buffer part, the outer ring of the circular knife is a knife edge part for dividing materials, one side of the buffer part is abutted with the elastic resetting piece, and one side of the buffer part is abutted with the inner wall of the limiting ring.

3. The novel circular knife tool according to claim 1, wherein: the elastic reset piece is composed of a reset spring, the head and the tail of the reset spring are fixedly connected, the reset spring is of an annular structure, and the reset spring is inlaid between the circular knife and the knife rest.

4. A novel circular knife tool according to any one of claims 1-3, characterized in that: still be equipped with the snap ring between spacing ring and the circular knife, the snap ring is annular hollow structure, and the centre gripping opening has still been seted up at the middle part of snap ring, and the centre gripping hole has been seted up at the both ends of snap ring for the centre gripping end, and the accessible clamping end of snap ring carries out assorted with outside calliper, and one side of snap ring is contradicted with one side that the circular knife kept away from elastic restoring piece, and the opposite side of snap ring carries out the butt with the inner wall of spacing ring.

5. A novel circular knife tool according to any one of claims 1-3, characterized in that: the inner wall of the tool rest is provided with a positioning through hole, a positioning bolt is arranged in the positioning through hole, the positioning bolt is in threaded connection with the positioning through hole, the bottom end of the positioning bolt can extend to the center of the tool rest, and the bottom end of the positioning bolt can be fixedly connected with an external transmission shaft.

6. A novel circular knife tool according to any one of claims 1-3, characterized in that: the axis of the circular knife and the axis of the knife rest are kept on the same straight line, and the axis of the limiting ring, the axis of the knife rest and the axis of the circular knife are kept on the same straight line.