CN110369602B

CN110369602B - Longitudinal cutter with virtual cutting function

Info

Publication number: CN110369602B
Application number: CN201910656279.1A
Authority: CN
Inventors: 杨交; 张云东
Original assignee: Foshan Yizhuo Intelligent Equipment Manufacturing Co ltd
Current assignee: Foshan Yizhuo Intelligent Equipment Manufacturing Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2022-12-06
Anticipated expiration: 2039-07-19
Also published as: CN110369602A

Abstract

The invention discloses a longitudinal cutter with virtual cutting function, wherein notches at two ends of a main cutting edge are designed, so that on one hand, the cutting sharpness of the cutting edge is improved, ribs with corresponding sizes are left after the two ends of the cutting edge are cut off, simultaneously, burrs at two ends of the cutting edge are effectively reduced or removed, and on the other hand, a clearance position is formed at two ends of the main cutting edge by the notches during cutting, so that the sunken deformation of fin notches corresponding to two ends of the main cutting edge is avoided; the secondary blade and the main blade are staggered in height, the secondary blade keeps away from the ribs at the two ends of the cut on the fin, so that the effect of virtual cutting is achieved, when the longitudinal cutter cuts the next section of fin, the longitudinal cutter is controlled to form, the rib positions can be cut off by the secondary blade, burrs at corresponding positions are cut off, and the longitudinal cutter is simple in structure, good in using effect and capable of effectively guaranteeing product quality.

Description

Longitudinal cutter with virtual cutting function

Technical Field

The invention relates to the technical field of cutters, in particular to a longitudinal cutter with a virtual cutting function.

Background

In the processing procedure of the fin, longitudinal cutting is also called as slitting, the fin is cut by using longitudinal cutting upper and lower cutters so as to meet the width requirement of a product, because the area of the fin is large, the fin needs to be cut by using the longitudinal cutting cutters one by one, and the two adjacent sections of cuts have overlapped cutting parts; at present, the structure of the traditional longitudinal cutting upper and lower blades can easily form burrs on fins after longitudinal cutting blanking, particularly at the two ends of the longitudinal cutting upper and lower blades, namely the two ends of each section of notch, simultaneously generate deformation, and the production efficiency and the product quality are greatly influenced by the burrs and the deformation problem.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the longitudinal cutter with the virtual cutting function, which can effectively remove burrs and prevent the end part of a cut from deforming.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a longitudinal cutter with a virtual cutting function comprises a cutter body, wherein a mounting hole is formed in the cutter body, a main cutting edge and auxiliary cutting edges positioned on two sides of the main cutting edge are arranged at the upper end of the cutter body, first notches are formed in two ends of the main cutting edge, the thickness of a cutting edge at each first notch is smaller than that of a cutting edge in the middle of the main cutting edge, and the height of the cutting edge of each auxiliary cutting edge is lower than that of the cutting edge of the main cutting edge; the cutter is characterized in that a third notch is formed between the auxiliary cutting edge and the cutter body, the third notch is composed of a fifth inclined plane and a sixth inclined plane, the fifth inclined plane is formed by extending along the top end of the auxiliary cutting edge in a downward inclined mode, the sixth inclined plane is formed by extending from the front end face of the cutter body towards the fifth inclined plane in an inclined mode, and an acute angle is formed between the fifth inclined plane and the sixth inclined plane.

As an improvement of the above technical solution, the first notch is formed by a first inclined surface and a second inclined surface, the first inclined surface is formed by extending from the top end of the main blade in a downward inclined manner, the second inclined surface is formed by extending from the inclined outer side surface of the main blade in an inclined manner towards the direction of the first inclined surface, and an acute angle is formed between the first inclined surface and the second inclined surface.

As a further improvement of the above technical scheme, a second notch is arranged below the first notch, the second notch is composed of a third inclined surface and a fourth inclined surface, the third inclined surface is inwards parallel to the auxiliary cutting edge from the inclined outer side surface of the main cutting edge, the third inclined surface and the cutting edge of the auxiliary cutting edge are positioned on the same horizontal plane, the fourth inclined surface is formed by obliquely extending from the inclined outer side surface of the main cutting edge towards the direction of the third inclined surface, and an acute angle is formed between the third inclined surface and the fourth inclined surface.

Further, a third notch is formed between the auxiliary cutting edge and the cutter body, the third notch is formed by a fifth inclined surface and a sixth inclined surface, the fifth inclined surface is formed by extending the top end of the auxiliary cutting edge in a downward inclined mode, the sixth inclined surface is formed by extending the front end face of the cutter body towards the fifth inclined surface in an inclined mode, and an acute angle is formed between the fifth inclined surface and the sixth inclined surface.

Further, the height difference between the minor cutting edge 3 and the major cutting edge 2 is less than 3mm.

Further, the cutting edge thickness of the main cutting edge 2 is less than 0.45mm.

Furthermore, the thickness difference between the cutting edge in the middle of the main cutting edge and the cutting edge at the first notch is 0.1-0.2 mm.

Further, the mounting hole is a kidney-shaped hole.

Further, the cutting edge inclination angle of the secondary blade is smaller than the cutting edge inclination angle of the main blade.

The beneficial effects of the invention are: a longitudinal cutter with virtual cutting function, the design of the notches at the two ends of the main cutting edge, on one hand, improves the cutting sharpness of the cutting edge, cuts off the two ends of the cutting edge to leave ribs with corresponding sizes, and simultaneously effectively reduces or removes burrs at the two ends of the cutting edge, on the other hand, the notches form a clearance avoiding position at the two ends of the main cutting edge during cutting, thereby avoiding the sunken deformation of the fin cutting edges corresponding to the two ends of the main cutting edge; the secondary blade and the main blade are staggered in height, the secondary blade keeps away from the ribs at the two ends of the cut on the fin, so that the effect of virtual cutting is achieved, when the longitudinal cutter cuts the next section of fin, the longitudinal cutter is controlled to form, the rib positions can be cut off by the secondary blade, burrs at corresponding positions are cut off, and the longitudinal cutter is simple in structure, good in using effect and capable of effectively guaranteeing product quality.

Drawings

The following is further described with reference to the accompanying drawings and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a partially enlarged view of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a longitudinal cutter with virtual cutting function comprises a cutter body 1, wherein a mounting hole 11 is formed in the cutter body 1, a main blade 2 and auxiliary blades 3 positioned on two sides of the main blade 2 are arranged at the upper end of the cutter body 1, first notches 4 are formed in two ends of the main blade 2, the thickness of a cutting edge at the first notch 4 is smaller than that of a cutting edge in the middle of the main blade 2, and the height of the cutting edge of the auxiliary blade 3 is lower than that of the cutting edge of the main blade 2; in practical use, when the fin is cut, an air groove is required to be used for carrying out adsorption cooperation production on the fin, the longitudinal cutter is matched with an external longitudinal cutting edge of a die and respectively carries out longitudinal bisection on the fin section by section from the upper part and the lower part, in the embodiment, the length size of a main cutting edge 2 of the longitudinal cutter is about 0.4mm smaller than that of the longitudinal cutting edge of the die, so that ribs with the thickness of 0.4mm are reserved at two ends of a cut of the fin to be connected, the material absorption effect on the fin is favorably improved to achieve yield increase effect, and the structural design of a first notch 4 at two ends of the main cutting edge 2 improves the cutting sharpness of the cutting edge on one hand, cuts off two ends of the cut to leave ribs with corresponding sizes, and effectively reduces or removes burrs at two ends of the cut on the other hand, and a gap is formed at two ends of the main cutting edge 2 to avoid the sunken deformation at the two ends of the main cutting edge 2; the auxiliary blade 3 and the main blade 2 are staggered in height, the auxiliary blade 3 avoids the space of ribs at two ends of a cut on a fin, and therefore the effect of virtual cutting is achieved.

Referring to fig. 2 and 3, specifically, the first notch 4 is composed of a first inclined surface 41 and a second inclined surface 42, the first inclined surface 41 is formed by extending from the top end of the main blade 2 in a downward inclined manner, the second inclined surface 42 is formed by extending from the inclined outer side surface of the main blade 2 in an inclined manner towards the first inclined surface 41, an acute angle is formed between the first inclined surface 41 and the second inclined surface 42, the first inclined surface 41 is used for forming a cutting edge which is thinner than the middle part of the main blade 2, so that the main blade 2 is convenient to produce, the first notch 4 is formed by the first inclined surface 41 and the second inclined surface 42, and is used as a vacancy for avoiding the deformation of a fin notch and is convenient for performing post-maintenance on the cutting edge at the position corresponding to the notch.

Referring to fig. 2 and 3, specifically, a second notch 5 is arranged below the first notch 4, the second notch 5 is composed of a third inclined surface 51 and a fourth inclined surface 52, the third inclined surface 51 is formed by extending inwards from the inclined outer side surface of the main blade 2 in parallel, the fourth inclined surface is formed by extending from the inclined outer side surface of the main blade 2 towards the third inclined surface 51 in an inclined manner, an acute angle is formed between the third inclined surface 51 and the fourth inclined surface, and when the auxiliary blade 3 of the longitudinal cutter realizes virtual cutting of the fin, the second notch 5 is used for further avoiding the two ends of the cut, so that the two ends of the cut are prevented from being deformed due to stress.

Further, the third inclined surface 51 and the cutting edge of the minor blade 3 are in the same horizontal plane, which is convenient for processing the third inclined surface 51.

Referring to fig. 2 and 3, specifically, a third notch 6 is provided between the minor cutting edge 3 and the cutter body 1, the third notch 6 is formed by a fifth inclined surface 61 and a sixth inclined surface 62, the fifth inclined surface 61 is formed by extending along the top end of the minor cutting edge 3 in a downward inclined manner, the sixth inclined surface 62 is formed by extending from the front end surface of the cutter body 1 in an inclined manner toward the fifth inclined surface 61, an acute angle is formed between the fifth inclined surface 61 and the sixth inclined surface 62, the minor cutting edge 3 is formed by using the fifth inclined surface 61, the production and processing into the minor cutting edge 3 are facilitated, and meanwhile, the sixth inclined surface 62 is used for forming a vacancy-avoiding position, so that the forced deformation of the fin at the virtual cutting position is avoided.

Preferably, the height difference between the minor cutting edge 3 and the major cutting edge 2 is less than 3mm.

Preferably, the cutting edge thickness of the main cutting edge 2 is less than 0.45mm.

Preferably, the thickness difference between the cutting edge at the first notch 4 and the cutting edge at the middle part of the main blade 2 is 0.1-0.2 mm.

Preferably, the mounting hole 11 is a kidney-shaped hole, so that the longitudinal cutter is convenient to mount and adjust.

The cutting edge inclination angle of the auxiliary blade 3 is smaller than that of the main blade 2 so as to cooperate with the formation of the third gap 6.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides a longitudinal cutter with function is cut to virtual, includes cutter body (1), is equipped with mounting hole (11) on cutter body (1), its characterized in that: the cutter body (1) is provided with a main cutting edge (2) and auxiliary cutting edges (3) positioned on two sides of the main cutting edge (2), two ends of the main cutting edge (2) are provided with first notches (4), the thickness of a cutting edge at each first notch (4) is smaller than that of the cutting edge in the middle of the main cutting edge (2), and the height of the cutting edge of each auxiliary cutting edge (3) is lower than that of the cutting edge of the main cutting edge (2);

a second notch (5) is arranged below the first notch (4), the second notch (5) is formed by a third inclined surface (51) and a fourth inclined surface (52), the third inclined surface (51) is formed by extending inwards from the inclined outer side surface of the main blade (2) in parallel to the auxiliary blade (3), the third inclined surface (51) and the cutting edge of the auxiliary blade (3) are positioned on the same horizontal plane, the fourth inclined surface is formed by extending obliquely from the inclined outer side surface of the main blade (2) towards the third inclined surface (51), and an acute angle is formed between the third inclined surface (51) and the fourth inclined surface;

a third gap (6) is arranged between the auxiliary cutting edge (3) and the cutter body (1), the third gap (6) is composed of a fifth inclined surface (61) and a sixth inclined surface (62), the fifth inclined surface (61) is formed by extending along the top end of the auxiliary cutting edge (3) in a downward inclined mode, the sixth inclined surface (62) is formed by extending from the front end surface of the cutter body (1) towards the fifth inclined surface (61) in an inclined mode, and an acute angle is formed between the fifth inclined surface (61) and the sixth inclined surface (62).

2. The slitting knife with the virtual cutting function as claimed in claim 1, wherein: first breach (4) comprise first inclined plane (41) and second inclined plane (42), first inclined plane (41) form from the top downward sloping extension of major cutting edge (2), second inclined plane (42) form towards first inclined plane (41) direction slope extension from the oblique lateral surface of major cutting edge (2), form an acute angle between first inclined plane (41) and the second inclined plane (42).

3. The slitting knife with the virtual cutting function as claimed in claim 1, wherein: the height difference between the auxiliary cutting edge (3) and the main cutting edge (2) is less than 3mm.

4. The slitting knife with the virtual cutting function according to claim 1, wherein: the thickness difference between the cutting edge in the middle of the main cutting edge (2) and the cutting edge at the first notch (4) is 0.1-0.2mm.

5. The slitting knife with the virtual cutting function as claimed in claim 1, wherein: the mounting hole (11) is a waist-shaped hole.

6. The slitting knife with the virtual cutting function according to claim 1, wherein: the cutting edge inclination angle of the auxiliary cutting edge (3) is smaller than that of the main cutting edge (2).