CN216656009U

CN216656009U - Ratchet wheel stamping die of tensioner for strapping tape

Info

Publication number: CN216656009U
Application number: CN202122990908.XU
Authority: CN
Inventors: 安学东; 杨策; 崔国东
Original assignee: Kunshan Wenshida Tools Co ltd
Current assignee: Kunshan Wenshida Tools Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-06-03
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a ratchet wheel stamping die of a tensioner for strapping tapes, which is applied to the field of stamping dies and solves the technical problem that a spacer part is easy to crack and deform when a ratchet wheel product is stamped; the punching male dies are provided with a plurality of groups; the group of punching male dies comprises a central punch and a ratchet punch which are sequentially arranged between the feeding end and the discharging end; the central punch comprises a first punch and a second punch which are arranged in the moving direction of the product in a staggered mode; the ratchet punches of each group of punching assemblies are arranged in a staggered manner; the technical effect who has is through setting up central drift interval along the moving direction of work piece is crisscross, processes the semicircle orifice at ratchet center one by one, and when processing the semicircle orifice at every turn, the work piece all is provided with the support in the periphery of semicircle orifice, better preventing that connecting portion from appearing pulling.

Description

Ratchet wheel stamping die of tensioner for strapping tape

Technical Field

The utility model relates to the field of stamping dies, in particular to a ratchet wheel stamping die of a tensioner for strapping tapes.

Background

The stamping die is a special process equipment for processing materials into parts in cold stamping processing, and is called as a cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

At present, many metalworks all adopt stamping to form, and in stamping process, the processing of sheet metal is more difficult, especially as figure 1 ratchet 34, two disconnected semicircle orifices 35 have been seted up to ratchet 1 middle symmetry, when these two semicircle orifices 35 of punching press, the below of two semicircle orifices 35 is the die that punches a hole, when punching a hole terrace die punching press work piece promptly, the below of the work piece position that the terrace die that punches a hole corresponds is for not having the support, often can lead to the interval 36 of two semicircle orifices to appear drawing crack, deformation etc. when the terrace die punching press that punches a hole this moment, influence the quality of ratchet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ratchet wheel stamping die of a tensioner for strapping tapes, which has the advantages that the semicircular hole of a ratchet wheel is stamped in a grading manner, and the quality of the ratchet wheel is ensured.

The technical purpose of the utility model is realized by the following technical scheme: a ratchet wheel stamping die of a tensioner for strapping tapes,

the punching die comprises a female die fixing plate and a punching die fixing plate arranged above the female die fixing plate, wherein a punching male die is fixed on the punching die fixing plate; the punching male dies are provided with a plurality of groups;

a material pressing plate is arranged at one end of the die fixing plate; one end of the die fixing plate, which is provided with the material pressing plate, is a discharge end, and the other end, which is opposite to the discharge end, is a feed end;

the group of punching male dies comprises a central punch and a ratchet punch which are sequentially arranged between a feeding end and a discharging end; the central punch comprises a first punch and a second punch which are arranged in the moving direction of the product in a staggered mode; the ratchet punches of each group of the punching male dies are arranged in a staggered manner;

and the female die fixing plate is provided with female dies which correspond to the first punch, the second punch and the ratchet punch one to one.

Through the technical scheme, the central punches are arranged at intervals in a staggered mode along the moving direction of the workpiece, the semicircular holes in the center of the ratchet wheel are machined successively, and the workpiece is provided with the supports at the periphery of the semicircular holes every time the semicircular holes are machined, so that the connecting part is prevented from being pulled; the ratchet punch is arranged behind the central punch, and the ratchet punches are arranged in a staggered mode, so that the yield of workpieces is increased and the production cost of the ratchet is reduced while the quality of the ratchet is guaranteed.

The utility model is further configured to: the punching male dies are provided with three groups, and ratchet wheel punching heads of the three groups of punching male dies are arranged in a triangular shape.

Through the technical scheme, the three ratchet wheel punch heads which are arranged in a triangular shape can better improve the productivity of the workpiece under the condition of ensuring that the quality is not influenced by mutual interference of the ratchet wheels; meanwhile, the triangular arrangement enables the structure of the die to be compact, and the size and the weight of the die to be reduced conveniently.

The utility model is further configured to: the three groups of ratchet wheel punching heads of the punching male dies are arranged in an equilateral triangle, and one side of the triangle is perpendicular to the moving direction of the workpiece.

Through the technical scheme, the three ratchet wheel punch heads are arranged in an equilateral triangle shape, one side of each ratchet wheel punch head is perpendicular to the moving direction of the workpiece, namely two ratchet wheel punch heads are arranged on two sides of each ratchet wheel punch head, the other ratchet wheel punch head is arranged in the middle of each ratchet wheel punch head, and the yield of the workpiece is improved to the maximum degree under the condition.

The utility model is further configured to: the die fixing plate is characterized in that a lower die holder is arranged below the die fixing plate, supporting blocks are installed at the bottom of the lower die holder, three supporting blocks are arranged side by side, and the supporting plate is located in the middle and arranged between the second punch and the die corresponding to the ratchet punch.

Through above-mentioned technical scheme, the supporting shoe sets up between second die and ratchet die, and the waste material that the second drift was pressed and the ratchet that the ratchet drift was pressed are separated by the backup pad, and both flow into different collection intracavity, are convenient for collect and arrange the ratchet.

The utility model is further configured to: and a material guide groove is formed in one side, close to the second female die, of the middle supporting plate.

By the technical scheme, the distance between the second female die and the supporting plate is reduced, so that the overall structure of the die is more compact; the baffle box sets up in the backup pad and is close to one side of second die, and the waste material of being convenient for is by the landing of baffle box, and then the collection of the waste material of being convenient for.

The utility model is further configured to: an inclined excess material guide surface is arranged below the material pressing plate.

Through the technical scheme, the material pressing plate is arranged at one end of the punch die fixing plate, and the excess material punched by the ratchet wheel is pressed and broken, so that the workpiece being punched is prevented from being influenced by the excess material, and meanwhile, the subsequent treatment on the excess material is facilitated; the excess material guiding surface is arranged below the pressure plate, so that the excess material after pressure breaking can be conveniently collected.

The utility model is further configured to: and a positioning punch is fixed on the die fixing plate, a positioning female die matched with the positioning punch is arranged on the female die fixing plate, and positioning holes corresponding to the positioning punch are formed in part of the female die.

Through the technical scheme, the positioning holes are only formed in part of the punching female die, so that the number of the positioning punches in the die is reduced conveniently, and the weight of the die is further reduced.

The utility model is further configured to: the upper die base is provided with a fixing groove convenient to mount.

Through the technical scheme, the die is convenient to install and fix.

In conclusion, the utility model has the following beneficial effects:

1. the central punches are arranged at intervals in a staggered manner along the moving direction of the workpiece, the semicircular holes in the center of the ratchet wheel are machined successively, and the workpiece is provided with supports at the periphery of the semicircular holes every time the semicircular holes are machined, so that the connecting part is prevented from being pulled;

2. the punching male dies are arranged into three groups, and three ratchet wheel punching heads are arranged in an equilateral triangle, so that the productivity of the workpiece is better improved under the condition that the quality is not influenced by mutual interference of the ratchet wheels; meanwhile, the triangular arrangement enables the structure of the die to be compact, and the occupied space and the weight of the die to be reduced conveniently.

Drawings

FIG. 1 is a schematic structural view of a ratchet wheel of the present embodiment;

fig. 2 is an overall configuration diagram of the present embodiment;

FIG. 3 is a schematic view of the explosion structure of the present embodiment;

FIG. 4 is a schematic view of the structure of the punching male die and the punching female die of the present embodiment;

fig. 5 is a schematic cross-sectional view of the lower die holder of this embodiment.

Reference numerals are as follows: 1. a lower die holder; 2. fixing a female die plate; 3. a die fixing plate; 4. an upper die holder; 5. a female die; 6. a first piercing punch; 7. a fixing groove; 8. an upper base plate; 9. a material pressing plate; 10. a guide plate; 11. a lower base plate; 12. a central punch; 13. a first ratchet punch; 14. a first punch; 15. a second punch; 16. a second ratchet punch; 17. a third punch; 18. a fourth punch; 19. a third ratchet punch; 20. a fifth punch; 21. a sixth punch; 23. a first positioning punch; 24. positioning holes; 25. a first support block; 26. a second support block; 27. a third support block; 28. a material guide chute; 29. a remainder guide surface; 30. a workpiece; 31. a first positioning punch die; 32. a second positioning die; 33. a second positioning punch; 34. a ratchet wheel; 35. a semicircular hole; 36. a connecting portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment is as follows:

referring to fig. 2 and 4, the ratchet wheel stamping die of the tensioner for strapping tapes comprises a lower die holder 1, and a female die fixing plate 2, a punching die fixing plate 3 and an upper die holder 4 which are sequentially arranged on the lower die holder 1, wherein a female die 5 is fixed on the female die fixing plate 2, and punching male dies are fixed on the punching die fixing plate 3 and are provided with a plurality of groups; the lower die holder 1 and the upper die holder 4 are used as fixing seats of the die and used for mounting and fixing other components; the female die fixing plate 2 is arranged on the lower die holder 1 and used for mounting and fixing a female die 5; the punch die fixing plate 3 is fixedly connected with the upper die base 4 and is used for mounting a punching male die; the punching male die is matched with the female die 5 to punch the workpiece 30.

Referring to fig. 2 and 3, the upper mold base 4 is a long plate, and fixing grooves 7 for fixing are formed on two sides of the upper mold base 4; an upper backing plate 8 is fixed below the upper die holder 4, a material pressing plate 9 is arranged on one side of the upper backing plate 8, and the material pressing plate 9 abuts against the upper die holder 4; the die fixing plate 3 is arranged below the upper backing plate 8, and the pressure plate 9 is fixed on one side of the die fixing plate 3 through bolts; one end of the fixed material pressing plate 9 is a discharge end of the die, and the other opposite end is a feed end of the die; a guide plate 10 is arranged below the die fixing plate 3, and the guide plate 10 is fixedly connected with the die fixing plate 3; the female die fixing plate 2 is arranged below the guide plate 10, and the workpiece 30 is arranged between the guide plate 10 and the female die fixing plate 2; a lower cushion plate 11 is arranged below the female die fixing plate 2, and the lower cushion plate 11 is fixedly connected with the lower die holder 1.

Referring to fig. 3 and 4, three groups of punching male dies are provided, the three groups of punching male dies are respectively arranged in the middle and at two sides of the workpiece 30, the punching male die positioned in the middle is a first punching male die 6, the punching male dies positioned at two sides are a second punching male die and a third punching male die respectively, and the second punching male die and the third punching male die are symmetrically arranged; the first punching male die 6 comprises a central punch 12 and a first ratchet punch 13 which are arranged from the feeding end to the discharging end, and the central punch 12 comprises a first punch 14 and a second punch 15 which are arranged in a staggered mode; the second punching male die comprises a second ratchet punch 16, a third punch 17 and a fourth punch 18; the third punching male die comprises a third ratchet punch 19, a fifth punch 20 and a sixth punch 21; the distance between the ratchet punch and the central punch 12 is consistent; the first ratchet punch 13, the second ratchet punch 16 and the third ratchet punch 19 are arranged in an equilateral triangle, the first ratchet punch 13 is located in the middle of the workpiece 30, the second ratchet punch 16 and the third ratchet punch 19 are respectively arranged on two sides of the workpiece 30, and a connecting line of center points of the second ratchet punch 16 and the third ratchet punch 19 is perpendicular to the moving direction of the workpiece 30.

Referring to fig. 2 and 3, the die fixing plate 3 is provided with two sets of positioning dies, a first positioning die 31 is arranged at the feed end of the product, the first positioning die 31 comprises two first positioning punches 23, and the two first positioning punches 23 are respectively arranged at two sides of the workpiece 30; the second positioning die 32 is provided on both sides of the second ratchet punch 16 and the third ratchet punch 19, the second positioning die 32 including four second positioning punches 33 (one of the second positioning punches 33 is not shown because it is shielded by the second ratchet punch 16), the two second positioning punches 33 being provided outside the ratchet punches in the moving direction of the workpiece 30; the female die 5 is fixed on the female die fixing plate 2, each punching male die corresponds to one female die 5, and positioning holes 24 corresponding to the second positioning punch 33 are formed in the two sides of the female die 5 corresponding to the second ratchet punch 16 and the third ratchet punch 4; the distance between the two positioning holes 24 on the female die 5 is the length of each movement of the workpiece 30; the first positioning punch 23 and the second positioning punch 33 are identical in size and shape.

Referring to fig. 3 and 5, through holes corresponding to the punching male dies one by one are formed in the female die 5, and through holes consistent with the female die 5 are formed in the lower backing plate 11 and the lower die holder 1, so that waste materials and products can conveniently fall into the through holes; the lower die holder 1 is provided with three supporting blocks which are arranged side by side along the moving direction of the product and are respectively a first supporting block 25, a second supporting block 26 and a third supporting block 27; the second supporting block 26 is located in the middle, a material guiding groove 28 is arranged on one side of the second supporting block 26 close to the first supporting block 25, and the material guiding groove 28 is arranged below the female die 5 corresponding to the fifth punch 20 and the sixth punch 21.

Referring to fig. 3 and 5, the lower die holder 1 is provided with a residue guide surface 29 at the discharge end, the residue guide surface 29 is arranged obliquely outward, the upper side and the upper side of the residue guide surface 29 are flush with the side surface of the lower backing plate 11, and the residue guide surface 29 is arranged right below the pressure plate 9.

Working process and principle of the embodiment

Placing a workpiece 30 between the die fixing plate 2 and the guide plate 10, driving the workpiece 30 to move from a feeding end to a discharging end of the die, when the workpiece 30 moves, punching through holes on the workpiece 30 by the first positioning punches 23 at two sides of the workpiece 30, then continuously moving the workpiece 30, punching a first semicircular hole in the middle by the first punch 14, continuously moving the workpiece 30, continuously punching the first semicircular hole by the first punch 14, and punching a second semicircular hole in the middle by the second punch 15; then, the third punch 17 and the fifth punch 20 punch the first semicircular holes on two sides, the workpiece 30 continues to move, and the fourth punch 18 and the sixth punch 21 punch the second semicircular holes on two sides; semicircular waste materials generated in the punching process of the first punch head 14, the second punch head 15, the third punch head 17 and the fourth punch head 18 pass through holes formed in the female die 5, the lower backing plate 11 and the lower die holder 1 and flow to a waste material collecting position; the fifth punch 20 and the sixth punch 21 fall into the material guide chute 28 of the second support plate and then flow to a waste collection place; when the workpiece 30 moves below the ratchet punch, the first ratchet punch 13, the second ratchet punch 16, the third ratchet punch 19 and the positioning punch 23 are pressed downwards simultaneously, the second positioning punch 33 is inserted into the through hole punched by the first positioning punch 23, and the first ratchet punch 13, the second ratchet punch 16 and the third ratchet punch 19 punch the product ratchet; the product ratchet wheel passes through holes formed in the female die 5, the lower backing plate 11 and the lower die holder 1 and flows to a product collecting position; the residual materials left after the ratchet wheel is punched continuously move to the discharge end, are punched and broken by the material pressing plate 9 and flow to the residual material collecting position.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A ratchet wheel stamping die of a tensioner for strapping tapes comprises a female die fixing plate (2) and a punching die fixing plate (3) arranged above the female die fixing plate (2), wherein a punching male die is fixed on the punching die fixing plate (3); the punching male dies are provided with a plurality of groups;

a material pressing plate (9) is arranged at one end of the die fixing plate (3); one end of the die fixing plate (3) provided with the pressure plate (9) is a discharge end, and the other end opposite to the discharge end is a feed end;

the punching device is characterized in that the group of punching male dies comprises a central punch (12) and a ratchet punch which are sequentially arranged between a feeding end and a discharging end; the central punch (12) comprises a first punch (14) and a second punch (15) which are arranged in a staggered mode in the moving direction of the product; the ratchet punches of each group of the punching male dies are arranged in a staggered manner;

and the female die fixing plate (2) is provided with female dies (5) which correspond to the first punch (14), the second punch (15) and the ratchet punch one by one.

2. The ratchet punching die of the tensioner for strapping tapes as claimed in claim 1, wherein the punching punches of the punching punches are arranged in three groups, and the ratchet punches of the three groups of punching punches are arranged in a triangular shape.

3. The ratchet punching die of a tensioner for strapping as in claim 2, wherein the ratchet punches of the three punching punches are arranged in an equilateral triangle, one side of the triangle being perpendicular to the moving direction of the workpiece (30).

4. The ratchet punching die of the tensioner for the strapping tape is characterized in that a lower die holder (1) is arranged below the die fixing plate (2), a supporting block is arranged at the bottom of the lower die holder (1), three supporting blocks are arranged side by side, and the supporting block in the middle is arranged between the second punch (15) and the die (5) corresponding to the ratchet punch.

5. The ratchet punching die of the tensioner for strapping tapes as claimed in claim 4, wherein the support block located in the middle is provided with a guide chute (28) at a side of the second punch (15) corresponding to the female die (5).

6. The ratchet punching die of a tensioner for strapping as in claim 5, wherein an inclined excess material guide surface (29) is provided below the pressure plate (9).

7. The ratchet punching die of the tensioner for the strapping tape is characterized in that a first positioning punch (23) is fixed on the die fixing plate (3), a positioning concave die matched with the first positioning punch (23) is arranged on the concave die fixing plate (2), and a part of the concave die (5) is provided with a positioning hole (24) corresponding to the first positioning punch (23).

8. The ratchet punching die of the tensioner for strapping bands as claimed in claim 7, wherein the die fixing plate (3) is provided with an upper die base (4), and the upper die base (4) is provided with a fixing groove (7) for facilitating installation.