Ripple edge cutter connecting mark removing structure of longitudinal cutting die

Abstract

The utility model belongs to the technical field of fin dies, and discloses a corrugation edge cutter trace removing structure of a longitudinal cutting die, which comprises an upper die fixing seat and a lower die fixing seat, a longitudinal cutting upper cutter is arranged on the upper die fixing seat, and a longitudinal cutting lower cutter is arranged on the lower die fixing seat. The longitudinal cutting upper knife comprises a first inclined knife edge, a first corrugated knife edge and a second inclined knife edge which are connected in sequence, the longitudinal cutting lower knife comprises a third inclined knife edge, a second corrugated knife edge and a fourth inclined knife edge which are connected in sequence, and the first corrugated knife edge and the second corrugated knife edge are matched with each other to realize longitudinal cutting; the first inclined knife edge, the second inclined knife edge, the third inclined knife edge and the fourth inclined knife edge are respectively provided with a first rear angle, and the angle of the first rear angle is 40-50 degrees. According to the structure for removing the corrugated edge cutter connecting trace of the longitudinal cutting die, the inclined cutter edges are arranged at the two ends of the longitudinal cutting upper cutter and the longitudinal cutting lower cutter, and the relief angles are designed at the inclined cutter edges, so that a corrugated sheet can be cut smoothly in the longitudinal cutting process, the longitudinal cutting effect is improved, the forming quality of the corrugated edge is guaranteed, and the process requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of fin moulds, in particular to a longitudinal cutting mould structure for removing knife marks on corrugated edges. Background Art

[0002] The fin die is a continuous stamping die, which includes multiple sub-dies. The longitudinal cutting sub-die is used to complete the longitudinal cutting process of air-conditioning fins. Longitudinal cutting is also called strip cutting. Its function is to use the longitudinal cutting upper and lower knives to cut the entire material width into the fin width required by the customer.

[0003] According to the design requirements, some fin types require corrugated longitudinal cutting. However, according to feedback from the debugging personnel, after the longitudinal cutting of this type of fins in the trial mold, it was found that the cutting edge of the fins often deformed and produced burrs, especially the corrugated edge joint was most prone to wrinkling, resulting in an unsightly fin appearance and affecting the longitudinal cutting effect. Utility Model Content

[0004] The utility model aims to provide a structure for removing knife marks on the corrugated edge of a longitudinal cutting die, so as to solve the problem that the corrugated edge of the existing die is prone to wrinkling and deformation after the corrugated longitudinal cutting.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A longitudinal cutting die structure for removing knife marks on the corrugated edge comprises an upper die fixing seat and a lower die fixing seat, wherein an upper longitudinal cutting knife is arranged on the upper die fixing seat, and a lower longitudinal cutting knife is arranged on the lower die fixing seat, wherein the upper longitudinal cutting knife comprises a first oblique knife edge, a first corrugated knife edge and a second oblique knife edge connected in sequence, and the lower longitudinal cutting knife comprises a third oblique knife edge, a second corrugated knife edge and a fourth oblique knife edge connected in sequence, the first corrugated knife edge and the second corrugated knife edge cooperate with each other to realize longitudinal cutting, and the first oblique knife edge, the second oblique knife edge, the third oblique knife edge and the fourth oblique knife edge are respectively provided with a first back angle, and the angle of the first back angle is 40° to 50°.

[0007] Preferably, the two ends of the second corrugated blade cooperate with part of the first bevel blade and part of the second bevel blade, and the end of the second corrugated blade cooperates with the first bevel blade or the second bevel blade to cut to form a longitudinal cutting joint, and the longitudinal cutting joint is located at the corrugated apex of the corrugated shape.

[0008] Preferably, the length from one end of the second corrugated blade to the other end of the second corrugated blade is the cutting length of a single longitudinal cut, and the cutting length is consistent with the feeding pitch.

[0009] Preferably, the slope of the first oblique blade edge and the slope of the second oblique blade edge are respectively consistent with the slope of the corrugation of the first corrugated blade edge; the slope of the third oblique blade edge and the slope of the fourth oblique blade edge are respectively consistent with the slope of the corrugation of the second corrugated blade edge.

[0010] Preferably, the first oblique cutting edge and the second oblique cutting edge are symmetrically arranged on both sides of the first corrugated cutting edge; the third oblique cutting edge and the fourth oblique cutting edge are symmetrically arranged on both sides of the second corrugated cutting edge.

[0011] Preferably, the outer edge of the first oblique blade edge is aligned vertically with the outer edge of the third oblique blade edge; the outer edge of the second oblique blade edge is aligned vertically with the outer edge of the fourth oblique blade edge.

[0012] Preferably, the first corrugated blade and the second corrugated blade are provided with a second clearance angle, and the angle of the second clearance angle is 40° to 50°.

[0013] The beneficial effects of the utility model are as follows: the longitudinal cutting die structure for removing the knife marks on the corrugated edge is provided with oblique knife edges at both ends of the longitudinal cutting upper knife and the longitudinal cutting lower knife, and a back angle is designed at the oblique knife edges, so that the longitudinal cutting of the corrugated sheet can be cut more smoothly, the longitudinal cutting effect is improved, the forming quality of the corrugated edge is guaranteed, and the process requirements are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a longitudinal cutting die structure for removing the knife marks on the corrugated edge provided by an embodiment of the utility model;

[0015] Figure 2 It is a side view of the cooperation between the longitudinal cutting upper knife and the longitudinal cutting lower knife involved in the embodiment of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the longitudinal cutting upper knife involved in the embodiment of the utility model;

[0017] Figure 4 yes Figure 3 A-direction view;

[0018] Figure 5 It is a structural schematic diagram of the longitudinal cutting lower knife involved in the embodiment of the utility model;

[0019] Figure 6 yes Figure 5 B view.

[0020] In the attached figure:

[0021] 1. Upper die fixing seat; 2. Lower die fixing seat; 3. Upper longitudinal cutting knife; 31. First oblique cutting edge; 32. First corrugated cutting edge; 33. Second oblique cutting edge; 4. Lower longitudinal cutting knife; 41. Third oblique cutting edge; 42. Second corrugated cutting edge; 43. Fourth oblique cutting edge; 5. Longitudinal cutting joint. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0026] See also Figures 1 to 6 As shown, this preferred embodiment provides a longitudinal cutting die to remove the corrugated edge knife mark structure, including an upper die fixing seat 1 and a lower die fixing seat 2, the upper die fixing seat 1 is provided with a longitudinal cutting upper knife 3, and the lower die fixing seat 2 is provided with a longitudinal cutting lower knife 4.

[0027] Among them, the longitudinal cutting upper knife 3 includes a first oblique knife edge 31, a first corrugated knife edge 32 and a second oblique knife edge 33 connected in sequence, and the longitudinal cutting lower knife 4 includes a third oblique knife edge 41, a second corrugated knife edge 42 and a fourth oblique knife edge 43 connected in sequence. The first corrugated knife edge 32 and the second corrugated knife edge 42 cooperate with each other to achieve longitudinal cutting. The first oblique knife edge 31, the second oblique knife edge 33, the third oblique knife edge 41 and the fourth oblique knife edge 43 are respectively provided with a first back angle α, and the angle of the first back angle α is 40° to 50°. In this embodiment, 45° is used as an example.

[0028] Therefore, the longitudinal cutting die structure for removing the knife marks on the corrugated edge has a first oblique knife edge 31, a second oblique knife edge 33, a third oblique knife edge 41 and a fourth oblique knife edge 43 correspondingly arranged at both ends of the longitudinal cutting upper knife 3 and the longitudinal cutting lower knife 4, and a first back angle α is designed at each oblique knife edge, so that the corrugated sheet can be cut more smoothly when longitudinally cutting, thereby improving the longitudinal cutting effect, ensuring the forming quality of the corrugated edge and meeting the process requirements.

[0029] In particular, the two ends of the second corrugated blade 42 cooperate with part of the first oblique blade 31 and part of the second oblique blade 33, and the end of the second corrugated blade 42 cooperates with the first oblique blade 31 or the second oblique blade 33 to cut and form a longitudinal cutting joint 5, and the longitudinal cutting joint 5 is located at the corrugated apex of the corrugated shape.

[0030] Therefore, the cutting point is designed at the apex of the corrugation, which is more conducive to eliminating the wrinkling problem at the joint, ensuring that the shape of the corrugated edge is smooth and the longitudinal cutting joint 5 is flawless.

[0031] In particular, the cutting length L of a single longitudinal cut is from one end of the second corrugated blade 42 to the other end of the second corrugated blade 42, and the cutting length L is substantially consistent with the feeding pitch, so as to control the repeated punching amount.

[0032] Furthermore, the inclination of the first oblique blade 31 and the inclination of the second oblique blade 33 are respectively consistent with the corrugation inclination of the first corrugated blade 32; the inclination of the third oblique blade 41 and the inclination of the fourth oblique blade 43 are respectively consistent with the corrugation inclination of the second corrugated blade 42, so that the longitudinal cutting upper blade 3 and the longitudinal cutting lower blade 4 fit the cut and uncut fin surfaces, avoiding deformation of the corrugated edge at the longitudinal cutting joint 5 and facilitating the connection of the longitudinal cutting joint 5.

[0033] Preferably, the first oblique blade edge 31 and the second oblique blade edge 33 are symmetrically arranged on both sides of the first corrugated blade edge 32; the third oblique blade edge 41 and the fourth oblique blade edge 43 are symmetrically arranged on both sides of the second corrugated blade edge 42. Further, the outer edge of the first oblique blade edge 31 is vertically aligned with the outer edge of the third oblique blade edge 41; the outer edge of the second oblique blade edge 33 is vertically aligned with the outer edge of the fourth oblique blade edge 43.

[0034] In addition, the first corrugated blade 32 and the second corrugated blade 42 are both provided with a second back angle β, and the angle of the second back angle β is 40° to 50°. In this embodiment, the second back angle β is consistent with the angle of the first back angle α, and both are set to 45°, so as to better perform the longitudinal cutting action.

[0035] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A longitudinal cutting die structure for removing the knife marks on the corrugated edge, comprising an upper die fixing seat (1) and a lower die fixing seat (2), wherein the upper die fixing seat (1) is provided with an upper longitudinal cutting knife (3), and the lower die fixing seat (2) is provided with a lower longitudinal cutting knife (4), characterized in that: The longitudinal cutting upper knife (3) comprises a first oblique knife edge (31), a first corrugated knife edge (32) and a second oblique knife edge (33) which are connected in sequence, and the longitudinal cutting lower knife (4) comprises a third oblique knife edge (41), a second corrugated knife edge (42) and a fourth oblique knife edge (43) which are connected in sequence, the first corrugated knife edge (32) and the second corrugated knife edge (42) cooperate with each other to realize longitudinal cutting, and the first oblique knife edge (31), the second oblique knife edge (33), the third oblique knife edge (41) and the fourth oblique knife edge (43) are respectively provided with a first back angle, and the angle of the first back angle is 40° to 50°.

2. The structure for removing the knife marks of the longitudinal cutting die according to claim 1 is characterized in that: The two ends of the second corrugated blade (42) cooperate with part of the first oblique blade (31) and part of the second oblique blade (33), and the end of the second corrugated blade (42) cooperates with the first oblique blade (31) or the second oblique blade (33) to cut to form a longitudinal cutting joint (5), and the longitudinal cutting joint (5) is located at the corrugation apex of the corrugated shape.

3. The structure for removing the knife marks of the longitudinal cutting die according to claim 2 is characterized in that: The length from one end of the second corrugated blade (42) to the other end of the second corrugated blade (42) is a cutting length of a single longitudinal cut, and the cutting length is consistent with the feeding pitch.

4. The structure for removing the knife marks of the longitudinal cutting die according to claim 1 is characterized in that: The slope of the first oblique blade edge (31) and the slope of the second oblique blade edge (33) are respectively consistent with the slope of the corrugation of the first corrugated blade edge (32); the slope of the third oblique blade edge (41) and the slope of the fourth oblique blade edge (43) are respectively consistent with the slope of the corrugation of the second corrugated blade edge (42).

5. The structure for removing the knife marks of the longitudinal cutting die according to claim 1 is characterized in that: The first oblique blade edge (31) and the second oblique blade edge (33) are symmetrically arranged on both sides of the first corrugated blade edge (32); the third oblique blade edge (41) and the fourth oblique blade edge (43) are symmetrically arranged on both sides of the second corrugated blade edge (42).

6. The structure for removing the knife marks of the longitudinal cutting die according to claim 1, characterized in that: The outer edge of the first oblique blade edge (31) is vertically aligned with the outer edge of the third oblique blade edge (41); the outer edge of the second oblique blade edge (33) is vertically aligned with the outer edge of the fourth oblique blade edge (43).

7. The structure for removing the knife marks of the longitudinal cutting die according to claim 1, characterized in that: The first corrugated blade (32) and the second corrugated blade (42) are provided with a second back angle, and the angle of the second back angle is 40° to 50°.

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