CN210968978U - U-shaped stamping tool bit - Google Patents

Abstract

The utility model relates to a U type punching press tool bit, it is including being rectangular shape and the transversal tool bit body of personally submitting the U type, wherein the punching press is formed with a plurality of sword grooves on the tool bit body, these a plurality of blade grooves set up in U type bottom along tool bit body length direction interval, between every two adjacent sword grooves, and form the blade the same with U type bottom shape between sword groove and the this tip of tool bit, wherein the side leanin of every blade formation sword groove, and with the cutting edge of formation acute angle between the U type lateral surface of blade. The utility model has the advantages that on one hand, the blade is formed by punch forming of the edge groove, therefore, the processing efficiency of the punching tool bit is high, the implementation is convenient and the cost is low; on the other hand, the cutting efficiency and effect of the hair whiskers are greatly improved through the blade forming the acute angle, and the comfort level of the user for removing the hair whiskers is enhanced.

Description

U-shaped stamping tool bit

Technical Field

The utility model belongs to hair clipper tool bit subassembly field, concretely relates to U type punching press tool bit.

Background

Hair scissors tool bit subassembly, it mainly includes blade holder, tool bit, sword net, and wherein the tool bit includes the tool bit body, pegs graft a plurality of blades on the tool bit body side by side, by the relative motion of blade and sword net, will stretch into the internal hair of sword must and cut.

Specifically, the surface of the blade attached to the knife net is a first edge surface, and a second edge surface located on two opposite sides of the blade and connected with the first edge surface, wherein a cutting edge is formed at the intersection of the first edge surface and the second edge surface, and an angle formed by the first edge surface and the second edge surface is a right angle (referred to as an edge angle for short).

However, as the applicant analyzes the processing cost and the using effect, the blade needs to be peeled off from the material belt piece by piece and then inserted into the cutter head body piece by piece, so that the processing cost of the cutter head assembly is obviously high; meanwhile, the cutting edge (right angle) formed by the edge surface is not in an ideal state, so that the comfort level of hair removal is directly influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims at providing a brand-new U-shaped stamping tool bit.

In order to achieve the above object, the utility model provides a U type punching press tool bit, it is including being rectangular shape and the transversal tool bit body of personally submitting the U type, wherein the punching press is formed with a plurality of edge grooves on the tool bit body, these a plurality of edge grooves set up in U type bottom along tool bit body length direction interval, between every two adjacent edge grooves, and form the blade the same with U type bottom shape between edge groove and the this tip of tool bit, wherein the side leanin of every blade formation edge groove, and with the cutting edge of forming the acute angle between the U type lateral surface of blade.

Preferably, the angle of the edge formed on each blade is equal. The processing and forming of the blade are convenient.

Furthermore, each blade is provided with a blade edge with an angle of 30-60 degrees. The blade at the angle is not only sharp, but also not easy to break (namely, the edge of the blade breaks).

According to the utility model discloses a concrete implementation and preferred aspect, a plurality of blade grooves are along the even interval distribution of tool bit body length direction, and every blade groove all sets up perpendicularly with tool bit body length direction.

Preferably, the width of each blade is equally arranged. Therefore, the blade is convenient to form and process.

According to another specific implementation and preferred aspect of the present invention, the cutting edge groove includes an arc-shaped notch formed on the U-shaped bottom of the cutter head body, two side notches formed on both sides of the U-shaped side portion from both ends of the arc-shaped notch, and each of the side notches is formed along the height direction of the U-shaped side portion. The arrangement ensures that the contact part of the blade and the knife net has a blade edge for shearing.

Preferably, the tip that the arc breach was kept away from to the side breach that each blade groove is located relative both sides aligns the setting, and a plurality of blade grooves correspond the tip that sets up the side breach of keeping away from the arc breach at U type lateral part homonymy and flush the setting. Is convenient for punch forming.

Further, each of the edge grooves has a circular arc shape at an end of the side notch formed on the corresponding U-shaped side portion. This convex overall arrangement can alleviate stress concentration, causes the phenomenon of corner fracture to take place, and then prolongs the life of punching press tool bit.

In addition, each U-shaped side part is also provided with a butt joint hole, and the butt joint hole is arranged between the arc-shaped end part of the side notch and the upper end part of the U-shaped side part.

Preferably, each U-shaped side portion is further provided with an insertion notch, the insertion notches are arranged in a concave mode from the edge of the upper portion of the U-shaped side portion, two butt joint holes are formed in each U-shaped side portion, the insertion notches are arranged in the middle of the U-shaped side portions, and the two butt joint holes are symmetrically arranged relative to the insertion notches.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model has the advantages that on one hand, the blade is formed by punch forming of the edge groove, therefore, the processing efficiency of the punching tool bit is high, the implementation is convenient and the cost is low; on the other hand, the cutting efficiency and effect of the hair whiskers are greatly improved through the blade forming the acute angle, and the comfort level of the user for removing the hair whiskers is enhanced.

Drawings

Fig. 1 is a schematic front view of the U-shaped stamping tool bit of the present invention;

FIG. 2 is a left side schematic view of FIG. 1;

FIG. 3 is a schematic sectional view (enlarged) taken along line A-A in FIG. 2;

in the drawings: 1. a tool bit body; 10. a cutting edge groove; 10a, an arc notch; 10b, side notches; 11. a blade; 12. a butt joint hole; 13. and (4) inserting notches.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 3, the U-shaped press cutting head according to the present embodiment includes a cutting head body 1 having a long bar shape and a U-shaped cross section, wherein a plurality of cutting edge grooves 10 are formed in the cutting head body 1 by pressing, the plurality of cutting edge grooves 10 are arranged at intervals on a U-shaped bottom along a length direction of the cutting head body 1, a blade 11 having the same shape as the U-shaped bottom is formed between every two adjacent cutting edge grooves 10 and between the cutting edge groove 10 and an end of the cutting head body 1, and a blade edge formed by each blade 11 and having a side surface of the cutting edge groove 10 inclined inward and forming an acute angle with an outer side surface of the U-shaped cutting edge is formed between the blade 11 and the outer side surface of the.

Specifically, the angles of the cutting edges formed on each blade 11 are equal. The processing and forming of the blade are convenient.

Each blade forms a cutting edge at an angle of 60. The blade at the angle is not only sharp, but also not easy to break (namely, the edge of the blade breaks).

A plurality of edge grooves 10 are evenly distributed along the length direction of the tool bit body 1 at intervals, and each edge groove 10 is perpendicular to the length direction of the tool bit body 1.

In this example, the width of each blade 11 is set equal. Therefore, the blade is convenient to form and process.

Specifically, the cutting edge groove 10 includes an arc notch 10a provided at the U-shaped bottom of the cutter head body 1, and two side notches 10b provided at both sides of the U-shaped side portion from both ends of the arc notch 10a, respectively, wherein each side notch 10b extends along the height direction of the U-shaped side portion. The arrangement ensures that the contact part of the blade and the knife net has a blade edge for shearing.

The end part of the arc-shaped notch 10a far away from the side notch 10b of each edge groove 10 positioned at two opposite sides is aligned, and the end parts of the arc-shaped notches 10a far away from the side notch 10b of the U-shaped side part at the same side are flush with each other and are correspondingly arranged on the plurality of edge grooves 10. Is convenient for punch forming.

Each of the edge grooves 10 has a circular arc shape at an end of the side notch 10b formed on the corresponding U-shaped side portion. This convex overall arrangement can alleviate stress concentration, causes the phenomenon of corner fracture to take place, and then prolongs the life of punching press tool bit.

In this example, the height of the U-shaped bit body 1 is 6cm, and the height of the cutting edge groove 10 formed in the U-shaped bit body 1 is 3.2 cm.

Further, a butting hole 12 is provided on each U-shaped side portion, and the butting hole 12 is provided between the circular arc-shaped end portion of the side notch 10b and the upper end portion of the U-shaped side portion.

Still be equipped with grafting breach 13 on each U type lateral part, grafting breach 13 sets up from U type upper portion edge inwards sunken, is equipped with two butt joint holes 12 on each U type lateral part wherein, and grafting breach 13 sets up in the middle part of U type lateral part, and two butt joint holes 12 set up about grafting breach 13 symmetry.

In summary, the present embodiment has the following advantages:

1. the blade is formed by punch forming of the edge groove, so that the punch blade head is very convenient to form, and compared with the existing inserted blade, the punching blade has obvious progress, and meanwhile, the forming efficiency and the forming cost are obviously improved;

2. through the cutting edge that forms 60 jiaos, not only sharp, be difficult for breaking up the mouth in addition (that is to say the breach of the cutting edge limit of cutting edge lacks), so, not only increase substantially the shearing efficiency and the effect of hair, strengthen the comfort level that the user rejected the hair moreover.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a U type punching press tool bit which characterized in that: u type punching press tool bit is including being rectangular shape and the transversal tool bit body of personally submitting the U type, wherein the punching press is formed with a plurality of edge grooves on the tool bit body, a plurality of edge grooves along tool bit body length direction interval sets up in U type bottom, every adjacent two between the edge groove, and edge groove with form the blade the same with U type bottom shape between the this tip of tool bit, wherein every the blade forms the side leanin of edge groove, and with form the cutting edge of acute angle between the U type lateral surface of blade.

2. The U-shaped punch bit of claim 1, wherein: the angles of the cutting edges formed on each blade are equal.

3. The U-shaped punch bit of claim 2, wherein: each blade forms a blade edge with an angle of 30-60 degrees.

4. The U-shaped punch bit of claim 1, wherein: a plurality of the blade grooves are distributed along the length direction of the tool bit body at even intervals, and each blade groove is perpendicular to the length direction of the tool bit body.

5. The U-shaped punch bit of claim 1, wherein: the width of each blade is set equal.

6. The U-shaped punch bit of claim 1, wherein: the edge groove comprises an arc-shaped notch arranged on the U-shaped bottom of the tool bit body, and two side notches arranged on two sides of the U-shaped side part at two ends of the arc-shaped notch respectively, wherein each side notch extends along the height direction of the U-shaped side part.

7. The U-shaped punch bit of claim 6, wherein: each of the edge grooves

Lie in relative both sides the side breach is kept away from the tip of arc breach aligns the setting, and is a plurality of the blade groove corresponds the setting and is in U type lateral part homonymy the side breach is kept away from the tip of arc breach flushes the setting.

8. The U-shaped punch bit of claim 7, wherein: the end part of the side notch formed on the corresponding U-shaped side part of each cutting edge groove is in a circular arc shape.

9. The U-shaped punch bit of claim 8, wherein: each U-shaped side part is also provided with a butt joint hole, and the butt joint holes are formed between the arc-shaped end parts of the side notches and the upper end parts of the U-shaped side parts.

10. The U-shaped punch bit of claim 9, wherein: each U type lateral part still is equipped with the grafting breach, the grafting breach sets up from U type upper portion edge is inwards sunken, wherein each be equipped with two butt joint holes on the U type lateral part, the grafting breach sets up the middle part of U type lateral part, two butt joint holes about the grafting breach symmetry set up.

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