CN219152341U

CN219152341U - Online sharpening structure of passive cutting tool

Info

Publication number: CN219152341U
Application number: CN202223464393.0U
Authority: CN
Inventors: 徐平; 邹爽; 王景; 李鹏泽
Original assignee: Shandong Jiekong Electric Technology Co ltd
Current assignee: Shandong Jiekong Electric Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-09
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to the technical field of cutting equipment, in particular to an online sharpening structure of a passive cutting tool, wherein a tool rest is arranged at the push rod end of a cylinder, and the cylinder can push the tool rest to move forwards and backwards; the cutter frame is of a U-shaped structure, an open U-shaped notch is formed in the front end of the cutter frame, and positioning mounting grooves are formed in two sides of the rear end of the cutter frame; a cutting unit is arranged in the open U-shaped opening, the cutting unit is an integral body formed by assembling a cutter holder, a blade and a cutter shaft, and two sides of the cutting unit are fixed on the cutter holder through knurled nuts; square nuts are installed in the positioning installation grooves, compression springs and grinding sheets are respectively arranged on the inner sides of the two square nuts, and the two square nuts are assembled into the sharpening unit. According to the utility model, on-line sharpening of the cutting tool is realized under the condition that the operation of the production line is not influenced, the cutting defects caused by tool replacement are reduced, and the production efficiency is improved. Meanwhile, the online sharpening also changes the phase, so that the service life of the cutter is prolonged, the frequency of replacing the cutter is reduced, and the production cost is reduced.

Description

Online sharpening structure of passive cutting tool

Technical Field

The utility model relates to the technical field of cutting equipment, in particular to an online sharpening structure of a passive cutting tool.

Background

The cutting process is an indispensable process in the industries of textile industry, paper industry, glass fiber new materials and the like. It is often desirable to cut the article from a single sheet to the desired width dimension, and the durability of the cutter is not negligible in order to increase production efficiency.

At present, a cutter changing mode is adopted for natural abrasion of cutters, the dull cutter in the cutting process is replaced, and a new cutter is clamped again to ensure the cutting effect. However, in the mode, the production line must be stopped for operation, so that the production efficiency is affected; meanwhile, the cutter is replaced, so that cutting defects are generated at the joint of the product before and after the cutter replacement, the rejection rate is improved, and the automatic production is not facilitated.

Therefore, the application designs an online sharpening structure of a passive cutting tool so as to solve the problems.

Disclosure of Invention

The utility model provides an online sharpening structure of a passive cutting tool, which aims to make up the defects in the prior art, and comprises an air cylinder, and is characterized in that:

the push rod end of the air cylinder is provided with a knife rest, and the air cylinder can push the knife rest to move forwards and backwards; the tool rest is of a U-shaped structure, an open U-shaped notch is formed in the front end of the tool rest, and positioning mounting grooves are formed in two sides of the rear end of the tool rest; a cutting unit is arranged in the open U-shaped opening, the cutting unit is an integral body formed by assembling a cutter holder, a blade and a cutter shaft, and two sides of the cutting unit are fixed on the cutter holder through knurled nuts; and square nuts are arranged in the positioning and mounting grooves, compression springs and grinding sheets are respectively arranged on the inner sides of the two square nuts, and the two square nuts are assembled into the sharpening unit.

Further, in order to better realize the utility model, the stroke of the air cylinder is larger than the distance between the blade and the cutting substrate, and the cutting pressure of the blade is regulated by regulating the air pressure of the air cylinder.

Further, in order to better realize the utility model, the cutter holder is fixedly provided with a blade, the inner hole is provided with a bearing, and the cutter shaft penetrates through the bearing.

Further, in order to better realize the utility model, the outer side surface of the square nut is not higher than the outer side surface of the tool rest.

Further, in order to better realize the utility model, a threaded shaft penetrates through the sharpening unit, the threaded shaft is rotationally connected with a grinding disc, plum blossom nuts are arranged at two ends of the threaded shaft, and the threaded shaft is fixedly clamped on the tool rest.

Further, in order to better realize the utility model, the blade of the cutting unit is abutted on the conveying roller, and the movement of the cut material drives the blade to rotate around the shaft.

Further, in order to better realize the utility model, after the plum blossom nut is loosened, the sharpening unit can slide up and down along the positioning mounting groove at the rear end of the tool rest under the guide of the square nut, so as to ensure that the abrasive disc can be completely separated from the blade to gradually contact with the blade.

Further, in order to better realize the utility model, the grinding sheets comprise a first grinding sheet and a second grinding sheet, and the two grinding sheets of the first compression spring and the second compression spring are mutually extruded together by taking the cutting edge as a symmetrical line under the action of the compression springs and leave a certain gap with the blade; by adjusting the contact position of the abrasive disc and the cutting edge, the blade is gradually abutted against the abrasive disc, and the cutting edge is sharpened when the blade rotates to cut the base material.

The beneficial effects of the utility model are as follows:

according to the utility model, on-line sharpening of the cutting tool is realized under the condition that the operation of the production line is not influenced, the cutting defects caused by tool replacement are reduced, and the production efficiency is improved. Meanwhile, the online sharpening also changes the phase, so that the service life of the cutter is prolonged, the frequency of replacing the cutter is reduced, and the production cost is reduced.

Drawings

FIG. 1 is an isometric view of an in-line sharpening configuration of a passive cutting tool of the present utility model;

FIG. 2 is a schematic top view of an on-line sharpening structure of the passive cutting tool of the present utility model;

FIG. 3 is a schematic front view of a cutting unit with an on-line sharpening structure for a passive cutting tool according to the present utility model;

FIG. 4 is a schematic axial side cross-sectional view of sharpening unit of the in-line sharpening structure of the passive cutter of the present utility model;

fig. 5 is a schematic working diagram of an on-line sharpening structure of the passive cutting tool of the present utility model.

In the drawing the view of the figure,

1. cylinder, 2, knife rest, 3, blade holder, 4, blade, 5, knurled nut, 6, arbor, 7, square nut, 8, plum nut, 9, abrasive disc, 10, compression spring, 11, screw axis, 901, first abrasive disc, 902, second abrasive disc, 1001, first compression spring, 1002, second compression spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "middle", "upper", "lower", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Fig. 1-5 show an embodiment of the present utility model, which is an on-line sharpening structure of a passive cutting tool, wherein a tool rest 2 is installed at the front end of a push rod of a cylinder 1, a U-shaped opening is arranged at the front end of the tool rest 2, a cutting unit is formed by a tool rest 3, a blade 4, a cutter shaft 6 and a knurled nut 5, the cutting unit is installed in the U-shaped opening at the front end of the tool rest 2, and two sides of the tool rest 2 are clamped and fixed by the knurled nut 5. The holder 3 and the insert 4 are rotatable about the arbor 6.

Meanwhile, a positioning and mounting groove is formed in the rear side of the tool rest 2, a square nut 7 is arranged in the square nut, a grinding disc 9 and a compression spring 10 are symmetrically arranged on two sides of the blade 4 by taking a cutting edge as a center, and the

grinding discs

901 and 902 are abutted together and can rotate around a threaded shaft 11 under the action of the

compression springs

1001 and 1002.

When cutting, the cylinder rod of the cylinder 1 pushes out, the blade edge of the blade 4 is propped against the roller for conveying the base material, the air pressure is regulated, and the cutting pressure of the blade 4 can be regulated. The base material drives the blade 4 to passively rotate for cutting, when the edge of the cutting blade 4 is dull, a cutting burr is generated or the base material cannot be completely cut off, the plum nut 8 is loosened manually, the sharpening unit moves upwards along the positioning and mounting groove of the tool rest 2, the blade 4 and the abrasive disc 9 are gradually contacted, the rotating blade 4 dials out the

abrasive discs

901 and 902 which are extruded together, friction force drives the abrasive disc 9 to rotate, and the

compression springs

1001 and 1002 ensure that the abrasive disc 9 is always contacted with the blade 4, and the edge is sharpened. At this time, the plum nut 8 is locked, and the position of the sharpening unit is fixed.

The abrasive disc 9 grinds the blade edge of the blade 4 for a period of time, so that the blade 4 can completely cut the base material, and when the use requirement is met, the plum nut 8 is opened again, the abrasive disc 9 is completely separated from the blade 4, and excessive abrasion of the blade 4 is prevented, so that the service cycle of the cutter is prevented. Then, the plum blossom nut 8 is locked, and the sharpening unit is reset and fixed. At this time, the sharpening operation of the on-line cutting tool is completed once.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides an online sharpening structure of passive cutting tool, includes cylinder (1), its characterized in that:

the push rod end of the air cylinder (1) is provided with a tool rest (2), and the air cylinder (1) can push the tool rest (2) to move forwards and backwards; the tool rest (2) is of a U-shaped structure, an open U-shaped opening is formed in the front end of the tool rest (2), and positioning and mounting grooves are formed in two sides of the rear end of the tool rest; a cutting unit is arranged in the open U-shaped opening, the cutting unit is an integral body formed by assembling a cutter holder (3), a blade (4) and a cutter shaft (6), and two sides of the cutting unit are fixed on the cutter holder (2) through knurled nuts (5); square nuts (7) are installed in the positioning installation grooves, compression springs (10) and grinding sheets (9) are respectively arranged on the inner sides of the two square nuts (7), and the two square nuts are assembled into the sharpening unit.

2. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the stroke of the air cylinder (1) is larger than the distance between the blade and the cutting base material, and the cutting pressure of the blade is regulated by regulating the air pressure of the air cylinder.

3. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the cutter holder (3) is fixedly provided with a blade, the inner hole is provided with a bearing, and the cutter shaft (6) penetrates through the bearing.

4. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the outer side surface of the square nut (7) is not higher than the outer vertical surface of the tool rest (2).

5. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the sharpening unit is penetrated with a threaded shaft (11), the threaded shaft (11) is rotationally connected with a grinding disc (9), plum nuts (8) are arranged at two ends of the threaded shaft (11), and the threaded shaft (11) is fixedly clamped on the tool rest (2).

6. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the blade (4) of the cutting unit is abutted against the conveying roller, and the movement of the cut material drives the blade (4) to rotate around the shaft.

7. The on-line sharpening structure for passive cutting tools as defined in claim 5, wherein:

after the plum blossom nut (8) is loosened, the sharpening unit can slide up and down along the positioning mounting groove at the rear end of the tool rest (2) under the guide of the square nut (7) so as to ensure that the abrasive disc (9) can be completely separated from the blade (4) to gradually contact with the blade.

8. The on-line sharpening structure of a passive cutting tool according to claim 1, wherein:

the grinding disc (9) comprises a first grinding disc (901) and a second grinding disc (902), the compression spring (10) comprises a first compression spring (1001) and a second compression spring (1002), and the two grinding discs (9) are mutually extruded together by taking the cutting edge as a symmetry line under the action of the compression spring (10) and a certain gap is reserved between the two grinding discs and the blade (4); by adjusting the contact position of the grinding disc (9) and the cutting edge, the blade (4) is gradually abutted against the grinding disc (9), and the cutting edge is sharpened while the blade (4) rotates to cut the base material.