CN101716780B - Paper punching cutter - Google Patents
Paper punching cutter Download PDFInfo
- Publication number
- CN101716780B CN101716780B CN2009101543324A CN200910154332A CN101716780B CN 101716780 B CN101716780 B CN 101716780B CN 2009101543324 A CN2009101543324 A CN 2009101543324A CN 200910154332 A CN200910154332 A CN 200910154332A CN 101716780 B CN101716780 B CN 101716780B
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- cutter
- cutter head
- stainless steel
- knife bar
- handle
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Abstract
The invention relates to a paper punching cutter which comprises a cutter handle, a cutter rod and a cutter head, wherein the cutter handle and the cutter rod are welded with the cutter head; the cutter head comprises the following components in percentage by weight: 80-92 percent of tungsten carbide, 5.6-14 percent of nickel and 2.4-6 percent of iron; and the cutter rod and the cutter head are connected through tin soldering and fixed by spot welding. The components of the hard alloy cutter head are optimized so as to greatly enhance the intermiscibility between the hard alloy cutter head and the stainless steel cutter rod and ensure that the connection between the cutter head and the cutter rod can be finished through tin soldering at a relatively low temperature, thus the stainless steel cutter rod is not easy to anneal and maintains self high strength.
Description
(1) technical field
The present invention relates to a kind of paper punching cutter.
(2) background technology
The paper punching cutter that is adopted in traditional paper punch has cutter hub of being made up of handle of a knife and cutter head and the cylindrical hole that is arranged on the cutter hub center; In the process of paper punch punching, the paper scrap that is come out by the cutter head punching press discharges through the through hole at its center.Because it is a kind of page punching dise knife of all being processed by tool steel; So problem below in use occurring: its difficulty when processing and manufacturing is big, the also difficult control of heat treatment; Therefore the shortcoming below occurring easily in using: 1) its cutter head is easy to bluntly, and the edge of a knife can split when running into foreign matter even broken; 2) it is like not punching for a long time, and the through hole that then stays the paper scrap that remains in tool bore also can cause cutter hub gets rusty, thus the trouble of bringing paper scrap to be difficult to discharge for later punching; 3) at page puncher running hours, because of causing annealing, the edge of a knife, the cutter head heating promptly weares and teares, dashed not the hole; 4) when the long-time continuous punching, channel of chip removal can not unimpeded, easyly stop up.
For overcoming above-mentioned shortcoming; Chinese patent CN200970800Y provides a kind of page punching dise knife that has carbide bit; It comprises the cutter hub of handle of a knife, knife bar and cutter head; And be arranged on the discharging opening road in cutter hub central circular cross section; Wherein the diameter in discharging opening road increases from cutter head end to shank end gradually, the assembly that its handle of a knife, knife bar and cutter head are processed by common No. 45 steel, gapless stainless steel tube and hard alloy steels respectively, and handle of a knife all connects with welding into an integral body with knife bar, knife bar and cutter head.The page punching dise knife of this patent can improve greatly existing page puncher punching speed, prolong its service life, simultaneously in punching continuously, constantly can it keep its hardness, obtain good punching effect all the time in the friction with page; The knife bar of its gapless stainless steel tube can also be guaranteed channel of chip removal and never corrosion, unobstructed all the time.The defective of the page punching dise knife of this patent is:
1, its cutter head component that adopts system adopts traditional tungsten carbide+cobalt;, the gapless stainless steel tube with knife bar must adopt high-temperature soldering when welding; Its welding temperature is more than 700 ℃; Thereby cause the stainless steel tube annealing of weld, intensity reduces greatly, and then makes shorten dramatically the service life of paper punching cutter;
2, also adopt welding between handle of a knife and the knife bar, cost is higher.
(3) summary of the invention
Technical problem to be solved by this invention provides a kind of good hardness, long service life, paper punching cutter that processing cost is low.
A kind of paper punching cutter; Comprise handle of a knife, stainless steel knife bar and cutter head; Said handle of a knife; Stainless steel knife bar and cutter head welding, described cutter head is made up of following component: the iron of the tungsten carbide of 80～92Wt%, the nickel of 5.6～14Wt% and 2.4～6Wt%, said stainless steel knife bar is connected through soldering with cutter head and adopts spot welding to fix.
Adopt soldering to combine spot welding to connect and to guarantee no matter stainless steel knife bar and cutter head circumferentially still vertically all can keep being connected firmly.
Preferably, described cutter head is made up of following component: the iron of the tungsten carbide of 85Wt%, the nickel of 10.5Wt% and 4.5Wt%.
Preferably, bonding between said handle of a knife and the stainless steel knife bar through anaerobic adhesive.
Cutter head of the present invention system adopts traditional handicraft processing and get, comprises with each component prepare burden laggard capable wet-milling, drying, mould molding, low pressure sintering machinery correct grinding and get carbide bit.
The present invention is through carrying out constituent optimization to carbide bit; Strengthen the intermiscibility between carbide bit and the stainless steel knife bar greatly; Make being connected between cutter head and the stainless steel knife bar to weld completion (the soldering temperature is at 280～320 ℃) through soldering down at low temperature relatively; Thereby make the stainless steel knife bar be difficult for annealing, kept the high strength of self; Adopt the spot welding lock-bit also to make stainless steel be difficult for annealing.In addition, bonding between handle of a knife and the stainless steel knife bar through anaerobic adhesive, both guaranteed the requirement of strength that connects, reduced processing cost simultaneously again.
(4) specific embodiment
Through specific embodiment technical scheme of the present invention is done further describing in detail below, but protection scope of the present invention is not limited to this.
Embodiment 1
A kind of paper punching cutter comprises handle of a knife, stainless steel knife bar and cutter head, said stainless steel knife bar and cutter head welding, and described cutter head is made up of following component: the iron of the tungsten carbide of 85Wt%, the nickel of 10.5Wt% and 4.5Wt%.Said stainless steel knife bar is connected through soldering with cutter head and adopts spot welding to fix.Said stainless steel knife bar handle of a knife and between through anaerobic adhesive bonding.
Paper punching cutter service life of present embodiment is more than 150000 times.
Embodiment 2
A kind of paper punching cutter comprises handle of a knife, stainless steel knife bar and cutter head, said stainless steel knife bar and cutter head welding, and described cutter head is made up of following component: the iron of the tungsten carbide of 88Wt%, the nickel of 8Wt% and 4Wt%.Said stainless steel knife bar is connected through soldering with cutter head and adopts spot welding to fix.Bonding between said handle of a knife and the stainless steel knife bar through anaerobic adhesive.
Paper punching cutter service life of present embodiment is more than 50000 times.
Embodiment 3
A kind of paper punching cutter comprises handle of a knife, stainless steel knife bar and cutter head, said stainless steel knife bar and cutter head welding, and described cutter head is made up of following component: the iron of the tungsten carbide of 90Wt%, the nickel of 5Wt% and 5Wt%.Said stainless steel knife bar is connected through soldering with cutter head and adopts between fixing said handle of a knife of spot welding and the stainless steel knife bar bonding through anaerobic adhesive.
Paper punching cutter service life of present embodiment is more than 100000 times.
Embodiment 4
A kind of paper punching cutter comprises handle of a knife, stainless steel knife bar and cutter head, said stainless steel knife bar and cutter head welding, and described cutter head is made up of following component: the iron of the tungsten carbide of 82Wt%, the nickel of 12Wt% and 6Wt%.Said stainless steel knife bar is connected through soldering with cutter head and adopts spot welding to fix.Bonding between said handle of a knife and the stainless steel knife bar through anaerobic adhesive.
Paper punching cutter service life of present embodiment is more than 20000 times.
Claims (3)
1. paper punching cutter; Comprise handle of a knife, stainless steel knife bar and cutter head; Said stainless steel knife bar and cutter head welding; It is characterized in that: described cutter head is made up of following component: the iron of the tungsten carbide of 80～92Wt%, the nickel of 5.6～14Wt% and 2.4～6Wt%, said stainless steel knife bar is connected through soldering with cutter head and adopts spot welding to fix.
2. paper punching cutter according to claim 1 is characterized in that: described cutter head is made up of following component: the iron of the tungsten carbide of 85Wt%, the nickel of 10.5Wt% and 4.5Wt%.
3. paper punching cutter according to claim 1 and 2 is characterized in that: bonding through anaerobic adhesive between said handle of a knife and the stainless steel knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101543324A CN101716780B (en) | 2009-11-30 | 2009-11-30 | Paper punching cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101543324A CN101716780B (en) | 2009-11-30 | 2009-11-30 | Paper punching cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101716780A CN101716780A (en) | 2010-06-02 |
| CN101716780B true CN101716780B (en) | 2012-02-01 |
Family
ID=42431461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101543324A Expired - Fee Related CN101716780B (en) | 2009-11-30 | 2009-11-30 | Paper punching cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101716780B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586473B (en) * | 2013-11-09 | 2016-01-20 | 马鞍山成宏机械制造有限公司 | A kind of hard Powder metallurgy tool and preparation method thereof |
| CN103586457B (en) * | 2013-11-09 | 2016-01-13 | 马鞍山成宏机械制造有限公司 | A kind of Powder metallurgy tool |
| CN103589930B (en) * | 2013-11-09 | 2016-01-13 | 马鞍山成宏机械制造有限公司 | Powder metallurgy tool of a kind of stainless steel bonding and preparation method thereof |
-
2009
- 2009-11-30 CN CN2009101543324A patent/CN101716780B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101716780A (en) | 2010-06-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120201 Termination date: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |