CN104325580B - Burr removing knife used for injection products - Google Patents

Burr removing knife used for injection products Download PDF

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Publication number
CN104325580B
CN104325580B CN201410562194.4A CN201410562194A CN104325580B CN 104325580 B CN104325580 B CN 104325580B CN 201410562194 A CN201410562194 A CN 201410562194A CN 104325580 B CN104325580 B CN 104325580B
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China
Prior art keywords
blade
width
dege
fishtail
angle
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Active
Application number
CN201410562194.4A
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Chinese (zh)
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CN104325580A (en
Inventor
杨伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING KILON MOULD PLASTIC Co Ltd
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CHONGQING KILON MOULD PLASTIC Co Ltd
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Priority to CN201410562194.4A priority Critical patent/CN104325580B/en
Publication of CN104325580A publication Critical patent/CN104325580A/en
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Abstract

The invention discloses a burr removing knife used for injection products. The knife comprises a plastic handle (1) and a single-edge blade (2), wherein the plastic handle (1) is made from shock resistant polystyrene; the single-edge blade (2) is made from a high-carbon tool steel plate with thickness of 2-3mm; the main body width of the single-edge blade (2) is consistent; the front end of the single-edge blade (2) is cut into a bevelled edge and an inclined surface with an included angle alpha of 20-45 degrees is arranged along the whole bevelled edge, thus forming an edge part (2a) of the single-edge blade (2); the width of the tail end of the single-edge blade (2) gradually increases from front to back and the increments at the left and right sides are equal, thus forming a fishtail-shaped connecting part (2b); the fishtail-shaped connecting part (2b) is embedded in the plastic handle (1). The knife has long service life, is convenient to operate and can ensure smoothness of product surfaces when used for removing burrs and flashes of the injection products.

Description

A kind of burring knife for injecting products
Technical field
The invention belongs to cutting-tool engineering field is and in particular to a kind of cutter for removing injecting products burr.
Background technology
Using the plastic product of injection mo(u)lding, some burrs and overlap can be remained down after shaping, affect the outward appearance of product, Need thoroughly to get rid of it.Now currently used for the cutter removing flash removed and overlap, that typically commercially buys can be multiple The snap blade using.This blade is double-edged blade, and blade is relatively thin, can not vertically exert oneself, go product table after flash removed during use Face is rough;Blade is longer, inconvenient operation, causes low production efficiency;Although being used for multiple times after broken, overall life is not Long, blade consumption is big, and use cost is high.
Content of the invention
For above-mentioned technical problem, the present invention intends providing a kind of long service life, the easy to operate removal that is exclusively used in be molded Product burr and the cutter of overlap, and can guarantee that flash removed and overlap product surface smooth.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is: a kind of burring knife for injecting products, including Plastic knife handle (1) and single dege blade (2), it is critical only that: described plastic knife handle (1) is made using impact resistant polystyrene, single Angle of throat piece (2) is made up of the high carbon tool steel sheet material of 2 3mm using thickness, and the body width of described single dege blade (2) is consistent, The front end of single dege blade (2) is cut into hypotenuse, and whole hypotenuse is provided with the inclined plane that angle α is 20~45 °, thus structure Become the blade (2a) of single dege blade (2);Width is gradually increased the tail end of described single dege blade (2) from front to back, and left and right two The incrementss of side are equal, thus forming a fishtail connecting portion (2b), described fishtail connecting portion (2b) embeds plastic knife handle (1) in.
Preferred as such scheme, the rear end of described blade (2a) stretches out, and the angle of extension is more than blade (2a) angle, forms a blunt portion (2c).Blunt portion is made up of the extension with mitre for the blade rear end, on the one hand ensure that blade Effective length, on the other hand due to this position when gripping closer to operator, blunt portion is set and can prevent plowing from handss.
In addition, the nose width of described fishtail connecting portion (2b) is less than the body width of single dege blade (2), fishtail is even The body width of rear end width ratio single dege blade (2) of socket part (2b) is big.Optimized dimensions are it is ensured that fishtail connecting portion will not be from moulding On the premise of abjection in material handle of a knife, save material to greatest extent, reduce manufacturing cost.
Further, the middle part of described plastic knife handle (1) is provided with anti-skidding cut (1a), is easy to grip, prevents from using process Middle skidding.
It is preferably, the angle β of described single dege blade (2) front end hypotenuse is 60 °, the angle α of described blade (2a) is 45 °.
The invention has the beneficial effects as follows:
(1) blade is inclined-plane using one side, and another side is the single dege blade of plane, during use, can be perpendicular to product Exerting oneself in surface, it is to avoid forms cut in product surface, improve the product quality of processing;
(2) plastic knife handle is made using impact resistant polystyrene, the high-carbon work that single dege blade is 2 3mm using thickness Tool steel board is made, and improves cutting-tool's used life by selection;
(3) afterbody of single dege blade embeds in plastic knife handle, and whole burring knife adopts insert structure, becomes in plastic knife handle During type, single dege blade is directly embedded into, and prevents single dege blade from deviating from from plastic knife handle with reference to fishtail connecting portion, firmly Reliable, meanwhile, the width incremental change of the fishtail connecting portion left and right sides equal it is ensured that left and right stress balance, also for Improve the steadiness installed;
(4) angle α of blade is limited, α crosses very much not sharp, and α is not too small wear-resisting, easily repaiies scarce.
Brief description
Fig. 1 is the perspective view of the present invention.
Fig. 2 is the sectional view of a-a in Fig. 1.
Fig. 3 is the sectional view of b-b in Fig. 1.
Specific embodiment
Below by embodiment and combine accompanying drawing, the invention will be further described:
As shown in figure 1, a kind of burring knife for injecting products, by plastic knife handle 1 and single dege blade 2 two parts group Become.
Plastic knife handle 1 is made using impact resistant polystyrene (hips), the height that single dege blade 2 is 2 3mm using thickness Carbon tool steel sheet material is made.The material of single dege blade 2, thickness all require it is therefore an objective to improve the intensity of single dege blade 2.
The body width of single dege blade 2 is consistent, and the front end of single dege blade 2 is cut into hypotenuse, and along the setting of whole hypotenuse There is the inclined plane (as shown in Figure 2) that angle α is 20~45 °, thus constituting the blade 2a of single dege blade 2.Blade 2a one side is Inclined-plane, simultaneously for plane, therefore referred to as single dege blade.
Width is gradually increased the tail end of single dege blade 2 from front to back, and the incrementss of the left and right sides are equal, thus forming one Individual fishtail connecting portion 2b, fishtail connecting portion 2b embed in plastic knife handle 1.In actual production process, resistance to impact polyphenyl second Alkene, after high-temperature fusion, the tail end of single dege blade 2 is inserted in fused mass, then applies pressure, by the tail end pressure of single dege blade 2 Tightly.
In conjunction with shown in Fig. 1 Fig. 3 it is preferable that the rear end of blade 2a stretches out, and the angle of extension be more than blade 2a Angle, formed a blunt portion 2c, that is, blunt portion be made up of the extension with mitre for the blade rear end.It is preferably, single dege blade 2 front end The angle β of hypotenuse is 60 °, and the angle α of blade 2a is 45 °.
In addition, the nose width of fishtail connecting portion 2b is less than the body width of single dege blade 2, fishtail connecting portion 2b's The body width of rear end width ratio single dege blade 2 is big.The middle part of plastic knife handle 1 is provided with anti-skidding cut 1a.

Claims (3)

1. a kind of burring knife for injecting products, including plastic knife handle (1) and single dege blade (2) it is characterised in that: described Plastic knife handle (1) is made using impact resistant polystyrene, the high carbon tool steel plate that single dege blade (2) is 2 3mm using thickness Material is made, and the body width of described single dege blade (2) is consistent, and the front end of single dege blade (2) is cut into hypotenuse, and along entirely oblique While being provided with the inclined plane that angle α is 20~45 °, thus constituting the blade (2a) of single dege blade (2);Described single dege blade (2) width is gradually increased tail end from front to back, and the incrementss of the left and right sides are equal, thus forming a fishtail connecting portion (2b), described fishtail connecting portion (2b) embeds in plastic knife handle (1), and the middle part of described plastic knife handle (1) is provided with anti-skidding stroke Trace (1a);The rear end of described blade (2a) stretches out, and the angle of extension is more than the angle of blade (2a), forms a blunt portion (2c).
2. according to described in claim 1 for injecting products burring knife it is characterised in that: described fishtail connecting portion (2b) nose width is less than the body width of single dege blade (2), the rear end width ratio single dege blade of fishtail connecting portion (2b) (2) body width is big.
3. according to described in claim 1 for injecting products burring knife it is characterised in that: before described single dege blade (2) The angle β of end hypotenuse is 60 °, and the angle α of described blade (2a) is 45 °.
CN201410562194.4A 2014-10-21 2014-10-21 Burr removing knife used for injection products Active CN104325580B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410562194.4A CN104325580B (en) 2014-10-21 2014-10-21 Burr removing knife used for injection products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410562194.4A CN104325580B (en) 2014-10-21 2014-10-21 Burr removing knife used for injection products

Publications (2)

Publication Number Publication Date
CN104325580A CN104325580A (en) 2015-02-04
CN104325580B true CN104325580B (en) 2017-02-01

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CN201410562194.4A Active CN104325580B (en) 2014-10-21 2014-10-21 Burr removing knife used for injection products

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135640A1 (en) * 1981-09-09 1983-03-17 Anton Ebert Tool for cutting off branches from cultivated plants
GB2111575B (en) * 1981-12-08 1986-01-08 Ronald Patrick Griffiths Putty knife
KR101190432B1 (en) * 2010-08-17 2012-10-11 이찬주 Deburring apparatus in car components and deburrinng method thereof
US20130036616A1 (en) * 2011-08-11 2013-02-14 Terry Lee Wagenknecht Dual point hobby knife blade
CN202411569U (en) * 2011-11-11 2012-09-05 青岛捷能汽轮机集团股份有限公司 Scraper
CN204183771U (en) * 2014-10-21 2015-03-04 重庆凯隆模具塑胶有限公司 For the burring knife of injecting products

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