CN107363902B

CN107363902B - Novel blade structure

Info

Publication number: CN107363902B
Application number: CN201710760614.3A
Authority: CN
Inventors: 王春生; 贾志江; 王润生
Original assignee: Suzhou Anjie Technology Co Ltd
Current assignee: Suzhou Anjie Technology Co Ltd
Priority date: 2017-08-30
Filing date: 2017-08-30
Publication date: 2023-03-10
Anticipated expiration: 2037-08-30
Also published as: CN107363902A

Abstract

The invention provides a novel blade structure which can simultaneously complete profile punching and outer edge rounding of Mylar, so that the Mylar has high processing yield and high processing efficiency. The cross section of the cutting tool comprises a connecting part and tool nose side faces, wherein the connecting part and the tool nose side faces are closed in opposite directions, a sharp point of a tool nose and a vertical connecting line of the connecting part are dividing lines, the two tool nose side faces are respectively arranged on two sides of the dividing line and specifically comprise a first tool nose side face and a second tool nose side face, the first tool nose side face comprises a cutting tool nose side, a first fillet, a second fillet and a transition tool nose side, the inclination of the cutting tool nose side and the transition tool nose side relative to the dividing line is consistent with the inclination of a profile edge of a Mylar to be formed, one end of the cutting tool nose side close to the connecting part is connected with the starting end of the first fillet, and the tail end of the first fillet is connected with the starting end of the second fillet in a smooth mode.

Description

Novel blade structure

Technical Field

The invention relates to the technical field of cutting of Mylar products, in particular to a novel blade structure.

Background

The die-cut of current wheat draws the product, in order to guarantee the whole pleasing to the eye degree of wheat draws and product, need carry out the oblique angle processing in the outside of wheat drawing, and carry out the radius angle processing in the outside portion of outer fringe, prior art needs to carry out profile punching and the metal mold complex location processing of outward fringe radius angle with this kind of wheat drawing and just can obtain required shape, in the course of working, need carry out the secondary positioning of instrument, it produces positioning error unavoidably, make the defective rate of wheat draw high, and the combined positioning of two instruments wastes time and energy, make machining efficiency low.

Disclosure of Invention

In view of the above problems, the present invention provides a novel blade structure, which can simultaneously complete profile punching and outer edge rounding of mylar, and which enables mylar to be processed with high yield and high processing efficiency.

A novel blade structure, its characterized in that: the cross section shape of the cutter comprises a connecting part and two sides of a cutter holder, wherein the connecting part and the two sides of the cutter holder close up in opposite directions, a sharp point of a cutter tip and a vertical connecting line of the connecting part are dividing lines, the two cutter tip side faces are respectively positioned on two sides of the dividing line and specifically comprise a first cutter tip side face and a second cutter tip side face, the first cutter tip side face comprises a cutting cutter tip side, a first fillet, a second fillet and a transition cutter tip side, the inclination of the cutting cutter tip side and the inclination of a profile edge of the Mylar to be formed relative to the dividing line are consistent, one end, close to the connecting part, of the cutting cutter tip side is connected with the starting end of the first fillet, the tail end of the first fillet is connected with the starting end of the second fillet in a smooth mode, the tail end of the second fillet is connected with the end, far away from the connecting part, of the transition cutter tip side is connected with the connecting part, the height from the sharp point to the tail end of the first fillet is equal to the thickness of the Mylar to be formed, and the shape of the first fillet is the same as the shape of the inverted Mylar to be formed.

It is further characterized in that:

the first fillet is a section of arc which is concave towards the connecting part, the second fillet is a section of arc which is convex away from the connecting part, the tail end of the first fillet and the starting end of the second fillet are in smooth transition without generating boundary line indentation, and the second fillet does not interfere with the end surface forming of the Mylar to be formed;

preferably, the second tip side surface is an integral bevel, the second tip side surface is angled at 20 ° with respect to the parting line, and the cutting tip side and the transition tip side are angled at 15 ° with respect to the parting line;

the height from the tool nose to the tail end of the first round angle is 0.5mm;

the radius of the first round angle is 0.3mm.

After adopting above-mentioned technical scheme, because the cross sectional shape of blade point is including the knife tip of cutting usefulness and the first fillet of radius angle simultaneously, and the tip highly equals the thickness of waiting to cut wheat to the end of first fillet, its instrument that makes adoption this blade point structure can be with wheat draw one shot forming, and it can accomplish the profile die-cut and outward flange radius angle of wheat draw simultaneously and handle, and it makes the processing yield of wheat draw high, and machining efficiency is high.

Drawings

FIG. 1 is a schematic cross-sectional view of a blade according to the present invention;

the names corresponding to the sequence numbers in the figure are as follows:

a connecting portion 1, a sharp point 2, a parting line 3, a first tip side 4, a cutting tip side 41, a first fillet 42, a second fillet 43, a transition tip side 44, a second tip side 5.

Detailed Description

A novel blade structure, which is shown in figure 1: the cross section shape of the cutting tool comprises a connecting part 1 of the tool holder and tool nose side faces with two sides closing up oppositely, a vertical connecting line of a tool nose point 2 and the connecting part 1 is a dividing line 3, the two tool nose side faces are respectively arranged at two sides of the dividing line 3, specifically a first tool nose side face 4 and a second tool nose side face 5, wherein the first tool nose side face 4 comprises a cutting tool nose side 41, a first fillet 42, a second fillet 43 and a transition tool nose side 44, the inclination of the cutting tool nose side 41 and the transition tool nose side 44 relative to the dividing line 3 is consistent with the inclination of a profile edge of a wheat pull to be formed, one end of the cutting tool nose side 41 close to the connecting part 1 is connected with the initial end of the first fillet 42, the tail end of the first fillet 42 is smoothly connected with the initial end of the second fillet 43, the tail end of the second fillet 43 is smoothly connected with one end of the transition tool nose side 44 far away from the connecting part 1, the other end of the transition tool nose side 44 is connected with the connecting part 1, the height H from the tip point 2 to the tail end of the first fillet 42 is equal to the thickness of the wheat pull to be formed, and the shape of the first fillet 42 is the same as the fillet to be formed.

The first fillet 42 is a section of arc which is concave towards the connecting part 1, the second fillet 43 is a section of arc which is convex away from the connecting part 1, the tail end of the first fillet 42 and the starting end of the second fillet 43 are in smooth transition without generating boundary line indentation, and the second fillet 43 does not interfere with the end surface forming of the Mylar to be formed;

the specific embodiment is as follows: when the angle alpha of the second blade edge side surface 5 is 20 DEG with respect to the boundary 3, and the angle beta of the cutting blade edge side 41 and the transition blade edge side 44 with respect to the boundary 3 is 15 DEG when the angle alpha is a slope of the whole body when the angle beta is used for punching Mylar with a thickness of 0.5mm; the height H from the sharp point to the end of the first fillet 42 is 0.5mm; the radius R of the first round angle 42 is 0.3mm, the height h from the sharp point 2 to the inner end face of the connecting part 1 is 1.5mm, the product edge chamfer and the profile can be cut at one time, the Mylar with the punching thickness of 0.5mm can realize the stability of the product edge angle and the round angle, the cut product edge angle is 72 degrees +/-5 degrees, and the edge R angle is 0.3 +/-0.05 mm.

The detailed description of the embodiments of the present invention is provided above, but the present invention is only the preferred embodiments of the present invention, and should not be considered as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the invention as claimed should be covered by this patent.

Claims

1. A novel blade structure is characterized in that: the cross section shape of the first round corner comprises a connecting part of a tool apron and tool nose side faces with two sides closing up oppositely, a sharp point of a tool nose and a vertical connecting line of the connecting part are boundary lines, the two tool nose side faces are respectively arranged at two sides of the boundary lines and specifically comprise a first tool nose side face and a second tool nose side face, wherein the first tool nose side face comprises a cutting tool nose side, a first round corner, a second round corner and a transition tool nose side, the slopes of the cutting tool nose side and the transition tool nose side relative to the boundary lines are consistent with the slope of a profile edge of a wheat puller to be formed, one end of the cutting tool nose side close to the connecting part is connected with the starting end of the first round corner, the tail end of the first round corner is smoothly connected with the starting end of the second round corner, the tail end of the second round corner is smoothly connected with one end of the transition tool nose side far away from the connecting part, the other end of the transition tool nose side is connected with the connecting part, the height from the sharp point to the tail end of the first round corner is equal to the thickness of the wheat puller to be formed, and the shape of the first round corner is the same as the shape of the wheat puller to be formed;

the first fillet is specifically a section of circular arc towards the concave part of the connecting part, the second fillet is specifically a section of circular arc deviating from the convex part of the connecting part, the tail end of the first fillet is smoothly transited with the starting end of the second fillet, no boundary line indentation is generated, and the second fillet does not interfere with the end face forming of the Mylar to be formed.

2. The novel blade structure of claim 1, wherein: the second cutting edge side surface is an integral inclined surface, the angle of the second cutting edge side surface relative to the boundary line is 20 degrees, and the angle of the cutting edge side and the transition edge side relative to the boundary line is 15 degrees.

3. The novel blade structure of claim 2, wherein: the height from the tool nose to the tail end of the first round angle is 0.5mm.

4. The novel blade structure of claim 2, wherein: the radius of the first round angle is 0.3mm.