CN201253856Y - Cemented carbide paper cutting knife - Google Patents
Cemented carbide paper cutting knife Download PDFInfo
- Publication number
- CN201253856Y CN201253856Y CNU2008201885572U CN200820188557U CN201253856Y CN 201253856 Y CN201253856 Y CN 201253856Y CN U2008201885572 U CNU2008201885572 U CN U2008201885572U CN 200820188557 U CN200820188557 U CN 200820188557U CN 201253856 Y CN201253856 Y CN 201253856Y
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- China
- Prior art keywords
- carbide alloy
- matrix
- connecting portion
- speed steel
- paper
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Abstract
The utility model discloses a hard alloy paper-cutting knife, comprising a basal body; the design points are that: the basal body is a flaky high-speed steel, a connecting part is arranged on the basal body along side direction; the connecting part is a step which penetrates through one end surface of the basal body to the other end surface; a long-strip hard alloy cutting blade is fixedly connected with the connecting part. The hard alloy paper-cutting knife has the advantages that: the part for cutting paper is a hard alloy cutting blade with high hardness, the basal body is the high-speed steel, thus not only prolonging the service life of the paper-cutting knife, but also the production cost of the paper-cutting knives is saved at the same time.
Description
[technical field]
The utility model relates to a kind of carbide alloy hand papercutter.
[background technology]
Mechanical bit is simple in structure, easy to operate, practical owing to it, and the scope of application is wide, is widely used in iron and steel, metallurgy, chemical industry, plastics, rubber, papermaking, printing, industries such as packing.Can adopt tool steel, high-speed steel, carbide alloy material manufacturings such as (wolfram steel) forms.
At present, the manufacturing of the whole employing of hand papercutter on market high-speed steel, though the cost of material of tool steel and high-speed steel is low than carbide alloy (wolfram steel), but because the hardness and the wearability of tool steel and high-speed steel are not high, the edge of a knife of mechanical bit weares and teares easily, service life is short, unstable product quality, waste resource.Carbide alloy (wolfram steel) then has the edge of a knife sharp, high rigidity, high-wearing feature, long service life, production efficiency height, advantages such as the steady quality of converted products.But because whole hard alloy (wolfram steel) mechanical bit is difficult to produce, material cost is heavy, and price is high and be difficult to marketing and use.
[utility model content]
The utility model has overcome the shortcoming of prior art, provides simple in structure, a kind of carbide alloy hand papercutter of the low and long service life of cost.
In order to solve the problem of above-mentioned existence, the utility model has adopted following technical proposal:
A kind of carbide alloy hand papercutter includes matrix, it is characterized in that described matrix is laminar, and matrix is provided with connecting portion along side directions, and the carbide alloy section of a strip is affixed with above-mentioned connecting portion;
Described matrix is laminar rectangular, and described connecting portion is in a matrix side along its length;
Described matrix is laminar square, described connecting portion in matrix along a side edge;
Described carbide alloy section is riveted with described connecting portion welding or by pin;
Described connecting portion is for extending through the step of relative other end from matrix one end face;
Described matrix is a high-speed steel, and described carbide alloy serial section is a right-angled trapezium.
The beneficial effects of the utility model are: the part that is used for cut paper is the carbide alloy section of high rigidity, and matrix is a high-speed steel, like this when prolonging hand papercutter service life also hand papercutter production saved cost.
[description of drawings]
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
Fig. 1 is embodiment one perspective view;
Fig. 2 is present embodiment one cross sectional view;
Fig. 3 is embodiment one high speed steel matrix and carbide alloy section perspective view;
Fig. 4 is embodiment two cross sectional view.
[specific embodiment]
As shown in the figure, a kind of carbide alloy hand papercutter includes laminar high speed steel substrate 1, and matrix 1 is affixed along carbide alloy section 2 and above-mentioned connecting portion 11 that side directions is provided with connecting portion 11, one strips.
As Fig. 1, Fig. 2 and embodiment illustrated in fig. 3 one, carbide alloy 2 cross sections of cutting into slices are right-angled trapezium, high speed steel substrate 1 is laminar rectangular, matrix 1 is provided with along its length that to extend through the carbide alloy section 2 of connecting portion 11, one strips of relative other end from an end face affixed with above-mentioned connecting portion 11.In the present embodiment one, connecting portion 11 is a step, high speed steel substrate 1 adopts soldering with carbide alloy section 2, carbide alloy 2 upper ends of cutting into slices are fixedly connected on the above-mentioned step by soldering, welding back directly forms a weld layer 3 in high speed steel substrate 1 lower end with carbide alloy 2 upper ends of cutting into slices, and makes the carbide alloy corresponding lateral surface coplane on 2 each lateral surface and the high speed steel substrate 1 of cutting into slices by machined then.
Except welding, embodiment illustrated in fig. 4 two, carbide alloy 2 cross sections of cutting into slices are right-angled trapezium, and carbide alloy section 2 is fastenedly connected by pin 4 with high speed steel substrate 1.Can establish counterbore 21 at carbide alloy 2 medial surfaces of cutting into slices when adopting the pin riveted joint, each pin 4 first correspondence is inserted on the high speed steel substrate 1 in the connecting hole, and then with each carbide alloy section 2 on counterbore 21 be connected.In the section 2 of pin 4 and carbide alloy on counterbore 21, the high speed steel substrate 1 connecting hole be interference fit to reach the fastening purpose that links to each other.
The part that is used for cut paper when using is the carbide alloy section 2 of high rigidity, and matrix 1 be a high-speed steel, like this prolongation hand papercutter service life also hand papercutter production saved cost.High speed steel substrate 1 laminarly also can adopt laminar square (not shown) rectangular except using, and can select according to actual needs.
Claims (7)
1, a kind of carbide alloy hand papercutter includes matrix (1), it is characterized in that described matrix (1) for laminar, and matrix (1) is provided with connecting portion (11) along side directions, and the carbide alloy section (2) of a strip is affixed with above-mentioned connecting portion (11).
2, a kind of carbide alloy hand papercutter according to claim 1 is characterized in that described matrix (1) for laminar rectangular, and described connecting portion (11) is positioned at matrix (a 1) side along its length.
3, a kind of carbide alloy hand papercutter according to claim 1 is characterized in that described matrix (1) is laminar square, and described connecting portion (11) is positioned at matrix (1) along a side edge.
4,, it is characterized in that described carbide alloy section (2) and described connecting portion (11) welding according to claim 2 or 3 described a kind of carbide alloy hand papercutters.
5,, it is characterized in that described carbide alloy is cut into slices (2) and described connecting portion (11) is riveted by pin according to claim 2 or 3 described a kind of carbide alloy hand papercutters.
6,, it is characterized in that described connecting portion (11) is for extending through the step of relative other end from matrix (1) one end face according to claim 1 or 2 or 3 described a kind of carbide alloy hand papercutters.
7, a kind of carbide alloy hand papercutter according to claim 1 is characterized in that described matrix (1) is a high-speed steel, and described carbide alloy section (2) cross section is a right-angled trapezium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201885572U CN201253856Y (en) | 2008-08-09 | 2008-08-09 | Cemented carbide paper cutting knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201885572U CN201253856Y (en) | 2008-08-09 | 2008-08-09 | Cemented carbide paper cutting knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201253856Y true CN201253856Y (en) | 2009-06-10 |
Family
ID=40737172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201885572U Expired - Fee Related CN201253856Y (en) | 2008-08-09 | 2008-08-09 | Cemented carbide paper cutting knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201253856Y (en) |
-
2008
- 2008-08-09 CN CNU2008201885572U patent/CN201253856Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20170809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |