CN100496909C - Perforating knife - Google Patents
Perforating knife Download PDFInfo
- Publication number
- CN100496909C CN100496909C CNB2007101348591A CN200710134859A CN100496909C CN 100496909 C CN100496909 C CN 100496909C CN B2007101348591 A CNB2007101348591 A CN B2007101348591A CN 200710134859 A CN200710134859 A CN 200710134859A CN 100496909 C CN100496909 C CN 100496909C
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- CN
- China
- Prior art keywords
- cutter
- cutter hub
- angle
- perforating
- knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Knives (AREA)
Abstract
The invention discloses a perforating cutter, which can adapt the process requirements of perforating on the comparatively soft material such as honeycomb paper board and corrugated board. The invention comprises a cutter handle and a cutter body arranged on the cutter handle, a cutter tip is arranged at the end part of the cutter body, a cross section of the cutter body is a quadrangle with diagonal lines of different lengths, and the cross section is symmetrical along a short diagonal line, inner and outer included angles of the two ends of the short diagonal line of the quadrangle are not equal, the outer included angle is larger than the inner included angle, the two side surfaces forming the inner included angle of the cutter body are the grinding surfaces, and cutter blades are arranged at the two ends of a long diagonal line of the cutter body. The round hole perforated on the comparatively soft material such as honeycomb paper board and corrugated board through the perforating cutter is smooth without rough selvedge, and the invention completely conforms to the perforating process requirements; the two grinding surface are plane surfaces, and the cutter sharpening is very convenient.
Description
Technical field
The present invention relates to honeycomb cardboard, corrugated board and foamed material and quality is not punching cutter in the perforating device that punches of very hard other materials.
Background technology
At present, be used for honeycomb cardboard, corrugated board and foamed material and quality is not the punching cutter of the perforating device that punches of very hard other materials, its structure generally includes: be used for the handle of a knife of clamping at perforating device, handle of a knife is provided with cutter hub, the end of cutter hub is a point of a knife, the cross section of its cutter hub is circular or oblate, and cutter hub is provided with blade.Very effective when this punching cutter punches on hard material, but when the punching of honeycomb cardboard and corrugated board, the hole of getting has a lot of burr, its round edge rough; Simultaneously, this blade wearing and tearing are unfavorable for whetting a knife later, because cutter hub is circular, in the sharpening process, the center of cutter hub tends to change; And, if perforated material thickness is thicker, then the hole outward flanging can take place, make the precision of pore-forming reduce.In a word, above-mentioned cutter hub cross section can not adapt to the drilling technology requirement of the relative softer material of quality such as honeycomb cardboard and corrugated board for circular or oblate two kinds of punching cuttves.
Summary of the invention
Technical problem to be solved by this invention is: the punching cutter that provides a kind of drilling technology that can adapt to the relative softer material with quality such as corrugated boards of honeycomb cardboard to require.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the punching cutter, comprise: handle of a knife and the cutter hub that is arranged on the handle of a knife, the end of cutter hub is a point of a knife, the cross section of described cutter hub is the not isometric quadrangle of diagonal and along short diagonal mirror image symmetry, it is unequal that this quadrangle is positioned at the inside and outside angle of two-end-point of short diagonal, outer angle is greater than interior angle, two sides of angle are grinding face in the formation of cutter hub, and cutter hub is provided with blade respectively at two end points places of long-diagonal.
Be respectively arranged with the arc transition face in inside and outside angle on the above-mentioned cutter hub.
The invention has the beneficial effects as follows: by the improvement to punching cutter cutter hub, the hole circle marginal ray cunning that makes this punching cutter get on quality such as honeycomb cardboard and corrugated board are not very hard material is not with burr, meets the drilling technology requirement fully; And two grinding faces are the plane, and it is very convenient to whet a knife.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of A-A section among Fig. 1;
Among the figure: 1, handle of a knife, 2, cutter hub, 21, grinding face, 22, blade, 23, the arc transition face, 24, the arc transition face, 25, short diagonal, 26, long-diagonal, 3, point of a knife;
In addition, α is outer angle, and β is interior angle.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As Fig. 1, shown in Figure 2, punching cutter of the present invention, comprise: handle of a knife 1 and the cutter hub 2 that is arranged on the handle of a knife 1, the end of cutter hub 2 is a point of a knife 3, as shown in Figure 3, the cross section of described cutter hub 2 is the not isometric quadrangle of diagonal, and along short diagonal 25 mirror image symmetries, this quadrangle is positioned at the two-end-point of short diagonal 25, outer angle α and β are unequal, outer angle α is greater than interior angle β, two sides of angle β are grinding face 21 in the formation of cutter hub 2---can make blade sharp by two grinding faces 21 of grinding, cutter hub 2 is provided with blade 22 respectively at two end points places of long-diagonal 26, make punching cutter rotating (clockwise or counterclockwise) to punch, can grinding again after two blades 22 are all used blunt back after the grinding, making punches service life of cutter can increase by one times.In the present embodiment, be provided with arc transition face 23 and 24 respectively at inside and outside angle α and β place on the described cutter hub 2.
Because the cross section of cutter hub 2 of the present invention is quadrangle, the outer angle α of cross section is bigger, can guarantee edge, the hole rounding off got, hole inboard phozy, without turn-ups, and the interior angle β of cross section is less, the punching intensity of the cutter that can guarantee to punch; The hole circle marginal ray that uses this punching cutter to get on quality such as honeycomb cardboard and corrugated board are not very hard material is sliding is not with burr, meets the drilling technology requirement fully; And two grinding faces are the plane, and it is very convenient to whet a knife.
Claims (2)
1. punching cutter, comprise: handle of a knife and the cutter hub that is arranged on the handle of a knife, the end of cutter hub is a point of a knife, it is characterized in that: the cross section of described cutter hub is the not isometric quadrangle of diagonal and along short diagonal mirror image symmetry, the angle [β] that this quadrangle is positioned at the two-end-point of short diagonal is unequal with outer angle [α], outer angle [α] is greater than interior angle [β], and two sides of angle [β] are grinding face in the formation of cutter hub, and cutter hub is provided with blade respectively at two end points places of long-diagonal.
2. punching cutter as claimed in claim 1 is characterized in that: on the described cutter hub interior angle [β] and outside angle [α] locate to be provided with respectively the arc transition face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101348591A CN100496909C (en) | 2007-10-23 | 2007-10-23 | Perforating knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101348591A CN100496909C (en) | 2007-10-23 | 2007-10-23 | Perforating knife |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101157221A CN101157221A (en) | 2008-04-09 |
| CN100496909C true CN100496909C (en) | 2009-06-10 |
Family
ID=39305514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101348591A Expired - Fee Related CN100496909C (en) | 2007-10-23 | 2007-10-23 | Perforating knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100496909C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500826B (en) * | 2011-12-01 | 2013-07-31 | 天津钢管集团股份有限公司 | Sizing rack buffer zone cutting tool and method for controlling hot-rolled seamless pipe green line |
| CN104647464B (en) * | 2014-06-21 | 2016-06-29 | 柳州凯通机械有限公司 | Bee-hole machining tool |
-
2007
- 2007-10-23 CN CNB2007101348591A patent/CN100496909C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101157221A (en) | 2008-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20091123 |