CN102615335B - Pneumatic shear blade structure - Google Patents
Pneumatic shear blade structure Download PDFInfo
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- CN102615335B CN102615335B CN201210112055.2A CN201210112055A CN102615335B CN 102615335 B CN102615335 B CN 102615335B CN 201210112055 A CN201210112055 A CN 201210112055A CN 102615335 B CN102615335 B CN 102615335B
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- shear blade
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- foremost
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Abstract
The invention relates to a pneumatic shear blade structure. The pneumatic shear blade structure comprises a shears head handle, a main shear blade and two auxiliary shear blades which are positioned on two sides of the main shear blade, wherein an oblique cutting plane is arranged below the front part of one of the auxiliary shear blades, and the headmost end of the auxiliary shear blade is 0.3 to 2 mm narrower than the headmost end of the auxiliary shear blade on the other side.
Description
Technical field
The invention belongs to pneumatic tool field, particularly relates to a kind of Pneumatic shear blade structure.
Background technology
In many fields, when will split to sheet metal, this pneumatic tool is cut using gas, the gas of prior art is cut
For the lower portion of two auxiliary blades of a main shear blade and symmetrical shape, described main shear blade and two auxiliary shear blades
On with a plane, this shape is also the intrinsic shape of now all shears classes, is carrying out shearing gold cutting using such gas
During category sheet material, it may appear that a shearing waste material, this shearing waste material can in the form of similar circle with shear action after
Continuous and be continuously increased, result so is that the shearing waste material of this circle can hinder the forward motion that gas is cut, and makes the resistance of shearing
Power is increasing, in order to avoid such situation occurs, can only remove this shearing waste material after shearing certain distance
Carry out shearing work afterwards again, pause several times will be made for some wide sheet materials and can just complete shearing work, give shearing work band
Carry out many inconvenience.
The content of the invention
The purpose of the present invention is that, by a kind of new technical scheme, the technical scheme can be overcome in shearing work because cutting
Cut the presence of waste material and affect the seriality of operation, reduce the resistance that shearing waste material is cut to gas, improve shear efficiency.
The present invention is achieved by the following technical solutions：
A kind of Pneumatic shear blade structure, includes a scissors bit shank body, a main shear blade and positioned at the two of main shear blade both sides
Individual auxiliary shear blade；There are an oblique section, the described auxiliary knife in described two lower sections for aiding in the one of blade of shear blade anterior
Piece foremost than the auxiliary blade narrow 0.3-2mm foremost of opposite side.
As further improvement, the auxiliary blade foremost than the auxiliary blade narrow 0.5- foremost of opposite side
1.5mm。
As further improvement, the auxiliary blade it is narrower foremost than the auxiliary blade of opposite side foremost
1.3mm。
The invention has the beneficial effects as follows：
The improvement cut to gas by the technical program, is cut when shearing work is carried out using the gas of the technical program, is produced
Raw bar shaped waste material is no longer bent by circle mode, but to extend spiral way to curving, before no longer hindering gas to cut
Enter, it is also possible to seriality when ensureing that gas cuts work.
Description of the drawings
Fig. 1, Fig. 1, schematic structural view of the invention；
Fig. 2, former auxiliary shear blade structural representation；
Fig. 3, the structural representation of another auxiliary shear blade.
39, scissors bit shank body 40, tight lock bolt 41, bearing
42, former auxiliary shear blade 43, main shear blade 44, axle sleeve
45, another auxiliary shear blade 46, oblique section
Specific embodiment
The concrete technical scheme of the present invention is described in detail below in conjunction with accompanying drawing, the specific embodiment of the present invention is only exemplary
, it is only used for explaining the present invention and being not to be construed as limitation of the present invention.
In the present invention, described front end is to contact the part for being sheared material in shearing work at first；Under described
Side i.e. blade are with the direction for shearing material contacts.
Shown in refer to the attached drawing 1- Fig. 3, the present invention is achieved by the following technical solutions.
A kind of Pneumatic shear blade structure, includes a scissors bit shank body 39, a main shear blade 43 and is located at main shear blade both sides
Two auxiliary shear blades (42,45)；There is a beveling below the front portion of the one of blade of described two auxiliary shear blades 45
Face 46, the auxiliary blade foremost than the auxiliary blade narrow 0.3-2mm foremost of opposite side.
As further improvement, the auxiliary blade foremost than the auxiliary blade narrow 0.5- foremost of opposite side
1.5mm。
As further improvement, the auxiliary blade it is narrower foremost than the auxiliary blade of opposite side foremost
1.3mm。
In an embodiment of the present invention, scissors bit shank body and main shears chip architecture are not changed in, and are only through auxiliary to two
One of those is improved to help shear blade, and another holding is constant compared with technology, as the which side for selecting main shear blade
Need not be emphasized, can realize the purpose of technical scheme.
When selecting to be improved the auxiliary shear blade of side, by the former lower direction of the auxiliary shear blade from head of the side
The root direction of the auxiliary shear blade is processed using the mode such as cutting or polishing, and the mode of this process is from front portion to root
Cutting that portion direction same level face forms an angle or polishing etc. are processed, it is also possible to directly entered using different moulds during fabrication
Row processing；, compared with the auxiliary shear blade of opposite side, front portion is than opposite side for this auxiliary shear blade after treatment
The narrow 0.3-2mm of auxiliary shear blade, it is preferably narrow than opposite side to aid in the anterior narrow 0.5-1.5mm of shear blade, most preferably than another
The anterior narrow 1.3mm of the narrow auxiliary shear blade in side.
After main shear blade and two auxiliary shear blades are installed on scissors bit handle, the anterior bottom of main shear blade is same
At grade, the front portion of opposite side auxiliary shear blade after treatment is gone to the bottom for the anterior bottom of the auxiliary shear blade of side
It is flat that the anterior bottom of the auxiliary shear blade of bottom the same side of the main shear blade front portion of forefront vertical dimension on side is located
Face 0.3-2mm, preferably 0.5-1.5mm, optimum is 1.3mm.So because main shear blade both sides auxiliary shear blade no longer
Symmetrical shape, occurs in that when cutting operation is carried out two auxiliary shear blades are different with the time of contact of material to be cut
When, the change of power is generated, therefore shears spiral type of the waste material in extension in the presence of out-of-balance force.
The above is only the specific descriptions to technical solution of the present invention, and certain those skilled in the art can be according to this
Technical scheme is improved, and these improvement should be considered as in protection scope of the present invention.
Claims (3)
1. a kind of Pneumatic shear blade structure, includes a scissors bit shank body, a main shear blade and positioned at two of main shear blade both sides
Auxiliary shear blade；It is characterized in that：The main shear blade and two auxiliary shear blades are arranged on after scissors bit handle, main shear blade
The anterior bottom of the auxiliary shear blade of anterior bottom the same side is at grade；The front portion of another auxiliary shear blade
Lower section have an oblique section, the auxiliary shear blade foremost than the auxiliary shear blade narrow 0.3-2mm foremost of opposite side；
Two auxiliary shear blades are not symmetrical with main shear blade.
2. a kind of Pneumatic shear blade structure according to claim 1, it is characterised in that：The auxiliary shear blade is foremost
Than the auxiliary shear blade narrow 0.5-1.5mm foremost of opposite side.
3. a kind of Pneumatic shear blade structure according to claim 1 and 2, it is characterised in that：The auxiliary shear blade is most
Auxiliary shear blade foremost narrow 1.3mm of the front end than opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112055.2A CN102615335B (en) | 2012-04-16 | 2012-04-16 | Pneumatic shear blade structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112055.2A CN102615335B (en) | 2012-04-16 | 2012-04-16 | Pneumatic shear blade structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102615335A CN102615335A (en) | 2012-08-01 |
| CN102615335B true CN102615335B (en) | 2017-04-12 |
Family
ID=46555734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210112055.2A Active CN102615335B (en) | 2012-04-16 | 2012-04-16 | Pneumatic shear blade structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102615335B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4602432A (en) * | 1983-10-17 | 1986-07-29 | Hardward & Industrial Tool Co., Inc. | Shear with offset cutting edge |
| CN86204928U (en) * | 1986-07-03 | 1987-04-15 | 池洪 | Scissors with dowble blades |
| AUPN851696A0 (en) * | 1996-03-07 | 1996-03-28 | Gasweld Pty. Ltd. | A shearing device |
| JP4402086B2 (en) * | 2006-07-31 | 2010-01-20 | 裕一 坂井 | Comb blade for a firewood and method for manufacturing the same |
| CN201711993U (en) * | 2010-07-09 | 2011-01-19 | 杨长国 | Aluminum plastic pipe scissors with main and auxiliary cutting edges |
| CN202606977U (en) * | 2012-04-17 | 2012-12-19 | 宁波飞驹工具有限公司 | Improved structure of air shear blade |
-
2012
- 2012-04-16 CN CN201210112055.2A patent/CN102615335B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102615335A (en) | 2012-08-01 |
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