CN216067561U - Cutting tool for an extruder - Google Patents
Cutting tool for an extruder Download PDFInfo
- Publication number
- CN216067561U CN216067561U CN202122219424.5U CN202122219424U CN216067561U CN 216067561 U CN216067561 U CN 216067561U CN 202122219424 U CN202122219424 U CN 202122219424U CN 216067561 U CN216067561 U CN 216067561U
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- bearing
- cutting tool
- tool
- positioning hole
- hole
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Abstract
The present invention provides a cutting tool for an extruder, comprising: the tool comprises a tool handle, a tool body and a tool body, wherein a central positioning hole and at least one auxiliary positioning hole are formed in the tool handle, and the diameter of the central positioning hole is larger than that of the at least one auxiliary positioning hole; wherein, be provided with the bearing in the central locating hole, the bearing passes through the bearing fixing base and arranges in the central locating hole. The object of the utility model is to at least increase the service life of the cutting tool.
Description
Technical Field
The utility model relates to a cutting tool for an extruder.
Background
The shank of existing tools for extruders includes several locating holes, where the central locating hole is usually fitted with a steel bushing to locate and secure on the tool holder. The cutter frame and the steel shaft sleeve are mutually extruded in the cutting process of the cutter, so that the shaft sleeve is easily abraded, the central positioning hole is further abraded, the shape of the central positioning hole is changed, the cutter is eccentric in the using process, the cutter feeding is not smooth, and the service life of the cutter is shortened.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the present invention proposes a cutting tool for an extruder to at least increase the service life of the cutting tool.
According to an embodiment of the present invention, there is provided a cutting tool for an extruder, including: the tool comprises a tool handle, a tool body and a tool body, wherein a central positioning hole and at least one auxiliary positioning hole are formed in the tool handle, and the diameter of the central positioning hole is larger than that of the at least one auxiliary positioning hole; wherein, be provided with the bearing in the central locating hole, the bearing passes through the bearing fixing base and arranges in the central locating hole.
It will be appreciated that the centrally located hole is typically provided in the central region of the cutting tool, and therefore the diameter of the centrally located hole is greater than the diameter of the other located holes (i.e. the secondary located holes) to securely locate the cutting tool on the tool holder; in addition, the cutting tool is provided with the bearing and the bearing fixing seat, the abrasion resistance degree of the bearing is higher than that of a steel shaft sleeve assembled at the central positioning hole of the cutting tool in the prior art, the abrasion resistance degree is improved, the positioning hole can be protected from abrasion, and the service life of the cutting tool is prolonged.
According to one embodiment of the utility model, the height of the bearing and the bearing holder in the thickness direction of the tool shank is greater than or equal to the height of the tool shank. This arrangement further protects the cutting tool from wear due to direct contact with the tool holder.
According to one embodiment of the utility model, the centrally located hole is provided at the centre of gravity of the cutting tool.
According to one embodiment of the utility model, the bearing holders are clearance fit with the centrally located hole. That is, there is suitable clearance between bearing fixing base and the centering hole, during the operation, for the bearing (and bearing fixing base) receive the displacement that produces behind the extrusion of tool holder and the friction, reserve space, avoid haring the centering hole of cutting tool.
According to one embodiment of the utility model, the bearings are 528 bearings.
In conclusion, the cutting tool is provided with the bearing and the bearing fixing seat, the wear resistance degree of the bearing is higher than that of a steel shaft sleeve assembled at the central positioning hole of the cutting tool in the prior art, the wear resistance degree is improved, the positioning hole can be protected from being worn, the service life of the cutting tool is prolonged, the workload of maintenance is greatly reduced, and the production efficiency is improved.
Drawings
FIG. 1 shows a prior art shank for a cutter of an extruder;
FIG. 2 shows a shank for a cutting tool of an extruder according to one embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the following description is only exemplary of the present invention and should not be construed as limiting the present invention in any way. The various embodiments may be combined with one another to form other embodiments not described below or explicitly shown in the figures.
It will be understood that the drawings show the shank of the cutting tool (with the blade omitted) in a schematic manner only, that the shape of the shank is not necessarily exactly the same as in the drawings, and that the drawings are not to scale but are drawn to better illustrate the features therein.
Fig. 1 shows a cutter 10 for an extruder according to the prior art, wherein a centrally located bore 12 is fitted with a steel bushing 14.
Referring now to fig. 2, there is provided a cutting tool 100 for an extruder, according to an embodiment of the present invention, including: the tool comprises a tool shank 101, wherein a central positioning hole 102 and at least one auxiliary positioning hole 110 are formed in the tool shank 101, and the diameter of the central positioning hole 102 is larger than that of the at least one auxiliary positioning hole 110; wherein, a bearing 104 is disposed in the central positioning hole 102, and the bearing 104 is disposed in the central positioning hole 102 through a bearing fixing seat 106.
It should be appreciated that the centrally located hole 102 is generally disposed in a central region of the cutting tool 100, and therefore, the diameter of the centrally located hole 102 is larger than the diameter of the other located holes (i.e., the auxiliary located holes 110) to securely locate the cutting tool on the tool holder; in addition, the cutting tool provided by the utility model is provided with the bearing 104 and the bearing fixing seat 106, and the wear resistance degree of the bearing 104 is higher than that of a steel shaft sleeve assembled at the central positioning hole of the cutting tool in the prior art, so that the wear resistance degree is improved, the central positioning hole 102 is protected from being worn, and the service life of the cutting tool 100 is prolonged.
The diameter of the centrally located hole 102 of the cutting tool 100 of the present invention is larger than prior art tools. It will be readily appreciated that this is to accommodate the bearing 104 and the bearing retainer 106. For example, in one embodiment of the present invention, the diameter of the center locating hole 102 is 16mm, whereas the diameter of the center locating hole of the existing tool with the same specification is only about 12 mm.
According to an embodiment of the present invention, the height of the bearing 104 and the bearing holder 106 in the thickness direction of the tool shank 101 is greater than or equal to the height of the tool shank 101. That is, bearing 104 and bearing mount 106 are thicker than tool shank 101. This arrangement further protects the cutting tool from wear due to direct contact with the tool holder.
According to one embodiment of the present invention, the centrally located hole 102 is disposed at the center of gravity of the cutting tool 100.
According to one embodiment of the present invention, the bearing holders 106 are clearance fit with the centrally located aperture 102. That is, there is a suitable gap between the bearing holder 106 and the centrally located hole 102, which allows room for possible displacement of the bearing 104 (and the bearing holder 106) after being pressed and rubbed by the tool holder during operation, thereby avoiding damage to the centrally located hole 102 of the cutting tool 100.
According to one embodiment of the utility model, the bearing 104 is a 528 bearing.
In other embodiments of the utility model, any other suitable type of bearing known to those skilled in the art may be used, and these are included in the scope of the utility model and do not limit the utility model in any way.
In conclusion, the cutting tool is provided with the bearing and the bearing fixing seat, the wear resistance degree of the bearing is higher than that of a steel shaft sleeve assembled at the central positioning hole of the cutting tool in the prior art, the wear resistance degree is improved, the positioning hole can be protected from being worn, the service life of the cutting tool is prolonged, the workload of maintenance is greatly reduced, and the production efficiency is improved.
It should be understood that the present invention is not limited to a cutting tool for use with a particular type or size of extruder. In the case where the center positioning hole of the original cutting tool for the extruder is enlarged to an appropriate diameter and an appropriate bearing and bearing holder are selected and assembled to the center positioning hole, the existing tool can be modified into the cutting tool having the greatly prolonged service life as described in the present invention, that is, the various advantages as described herein can be achieved only by performing the secondary processing on the existing tool without processing and manufacturing a new cutting tool body. Therefore, the cutting tool is easy to realize, convenient to obtain, low in cost and suitable for wide application.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A cutting tool for an extruder, comprising:
the tool comprises a tool handle, a tool body and a tool body, wherein a central positioning hole and at least one auxiliary positioning hole are formed in the tool handle, and the diameter of the central positioning hole is larger than that of the at least one auxiliary positioning hole;
the bearing is arranged in the central positioning hole through a bearing fixing seat.
2. The cutting tool of claim 1, wherein the height of the bearing and the bearing mount is greater than or equal to the height of the shank in a thickness direction of the shank.
3. The cutting tool of claim 1, wherein the centrally located hole is disposed at a center of gravity of the cutting tool.
4. The cutting tool of claim 1, wherein the bearing mount is a clearance fit with the centrally located aperture.
5. The cutting tool according to any one of claims 1-4, wherein the bearing is a 528 bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122219424.5U CN216067561U (en) | 2021-09-14 | 2021-09-14 | Cutting tool for an extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122219424.5U CN216067561U (en) | 2021-09-14 | 2021-09-14 | Cutting tool for an extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216067561U true CN216067561U (en) | 2022-03-18 |
Family
ID=80676334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122219424.5U Active CN216067561U (en) | 2021-09-14 | 2021-09-14 | Cutting tool for an extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216067561U (en) |
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2021
- 2021-09-14 CN CN202122219424.5U patent/CN216067561U/en active Active
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| GR01 | Patent grant |