CN220347003U - Hollow liner stamping die - Google Patents

Abstract

The utility model provides a hollow liner stamping die which comprises a punching structure, a tearing structure and a deep drawing structure, wherein the punching structure is arranged on the hollow liner stamping die; the lower end face of the punching male die is of a fan ring structure, and a fan ring groove is arranged on the punching female die at a position opposite to the punching male die; the outer circle of the tearing male die is axially provided with a tearing convex part, one side of the bottom of the tearing convex part is provided with a tearing chamfer, and the tearing female die is provided with a tearing groove at the position opposite to the tearing convex part; the deep drawing groove is formed in the position, opposite to the deep drawing male die, of the deep drawing female die, and the gap between the outer circle of the deep drawing male die and the inner circle of the deep drawing female die is matched with the thickness of the side wall of the product. The utility model aims to provide a hollow gasket stamping die which can be used in progressive dies and solves the problems that the precision requirement is high, the die structure is long, more stations are required to be arranged, and the die production cost is high when a traditional processing mode is used for processing a hollow gasket product.

Description

Hollow liner stamping die

Technical Field

The utility model relates to the technical field of progressive die processing, in particular to a hollow liner stamping die.

Background

The progressive die is an advanced die in the production and processing at the present stage, combines multiple dies together and integrates the functions of multiple single-process dies, thereby realizing continuous automatic production of multiple processes, having the advantages of good processing quality, high production efficiency, less requirement of operators and the like, and being a great direction of the design and development of the stage die.

The air bag is an important device for protecting drivers and passengers when an automobile collides with an obstacle at a high speed, the air bag can be ejected to protect the safety of drivers and passengers when the automobile collides, and the hollow liner is an important part in the air bag of the automobile. The hollow liner product shown in fig. 1 is provided with a notch on the side surface, and the traditional processing mode is to firstly draw a cake-shaped product blank into a dish-shaped structure, and then punch a notch on the side wall of the product blank by using a side punching die. However, the accuracy requirement for arranging the side punching die is higher, the problem of a shovel blade is easy to cause if the side punching die is not well matched, the side punching die is longer in structure, more stations are needed to be arranged, and the production cost of the die is higher. Therefore, it is necessary to invent a hollow liner stamping die for progressive dies.

Disclosure of Invention

The utility model aims to provide a hollow gasket stamping die which can be used in progressive dies and solves the problems that the precision requirement is high, the die structure is long, more stations are required to be arranged, and the die production cost is high when a traditional processing mode is used for processing a hollow gasket product.

The technical scheme adopted for solving the technical problems is as follows:

a hollow liner stamping die comprises a punching structure, a tearing structure and a deep drawing structure;

the punching structure comprises a punching male die and a punching female die, the lower end face of the punching male die is of a sector ring structure, and a sector ring groove is arranged on the punching female die at a position opposite to the punching male die;

the tearing structure comprises a tearing male die and a tearing female die, a plurality of groups of tearing convex parts are axially arranged on the outer circle of the tearing male die, a tearing chamfer is arranged on one side of the bottom of the tearing convex part, and a tearing groove is formed in the position, opposite to the tearing convex part, of the tearing female die;

the deep drawing structure comprises a deep drawing male die and a deep drawing female die, wherein a deep drawing groove is formed in the position, opposite to the deep drawing male die, of the deep drawing female die, and the gap between the outer circle of the deep drawing male die and the inner circle of the deep drawing female die is adapted to the thickness of the side wall of the product.

Further, the die further comprises an upper die and a lower die, wherein the punching male die, the tearing male die and the drawing male die are arranged in the upper die, and the punching female die, the tearing female die and the drawing female die are arranged in the lower die.

Further, the upper die comprises an upper die seat, an upper base plate and an upper fixing plate which are sequentially overlapped and fixed below the upper die seat, and the upper end of the punching male die, the upper end of the tearing male die and the upper end of the drawing male die are fixedly connected to the upper fixing plate.

Further, the lower die comprises a lower die holder, a lower fixing plate and a die plate which are sequentially overlapped and fixed above the lower die holder, and the punching die, the tearing die and the deep drawing die are fixedly arranged in the die plate.

Further, go up the mould still include and go up the structure of unloading, go up the structure of unloading include that top-down sets gradually unload backplate, stripper, go up the mould on still set up the spacing link plate that is used for spacing to go up the structure of unloading, punch a hole, tear a punch, deep-drawing punch all pass and go up the structure of unloading.

Further, an upper elastic structure for pushing the upper discharging structure is further arranged in the upper die, the upper elastic structure comprises a first spring, an upper ejector rod is arranged below the first spring, and the lower end of the upper ejector rod is abutted with the upper end of the upper discharging structure.

Further, a blanking groove is further formed in the lower die, and the blanking groove is arranged below the tearing female die.

Further, the tearing structure also comprises a first floating block for supporting the product, the first floating block is movably arranged in the tearing female die, and a second spring is arranged below the first floating block.

Further, the deep drawing structure further comprises a second floating block for supporting the product, the second floating block is movably arranged in the deep drawing female die, and a third spring is arranged below the second floating block.

Further, an R angle is arranged on the inner side of the upper end of the deep drawing female die.

The utility model has the beneficial effects that: the device integrates the half-shearing and blanking necking functions on one set of dies of the progressive die, and the dies can continuously perform half-shearing and blanking necking processing on products in the continuous moving process of the material belt, so that the processing precision is high, the stability of the processing dimension of the products can be effectively ensured, and the processing efficiency is improved.

The utility model will be described in more detail below with reference to the drawings and examples.

Drawings

Fig. 1 is a structural view of a hollow mat product.

Fig. 2 is a strip chart for a hollow liner stamping die.

Fig. 3 is an open state cross-sectional view of a hollow liner stamping die of the present utility model.

Fig. 4 is a closed state cross-sectional view of a hollow liner stamping die of the present utility model.

Fig. 5 is an exploded view of the main structure of the mold of the present utility model.

Fig. 6 is a structural view of a tear male die in the die of the present utility model.

Detailed Description

A hollow liner stamping die as shown in fig. 3-6, comprising a punching structure 40, a tear structure 50 and a deep-drawing structure 60;

the punching structure 40 comprises a punching male die 401 and a punching female die 402, wherein the lower end surface of the punching male die 401 is provided with a sector ring structure for punching one side of a product into a sector ring notch, and a sector ring groove 4021 is arranged on the punching female die 402 at a position opposite to the punching male die 401;

the tearing structure 50 comprises a tearing male die 501 and a tearing female die 502, wherein the body of the tearing male die 501 is of a cylindrical structure, a plurality of groups of tearing male portions 5011 are axially arranged on the outer circle of the body of the tearing male die 501, a tearing chamfer 5012 is arranged on one side of the bottom of the tearing male portions 5011, and a tearing groove 5021 is formed in the tearing female die 502 at a position opposite to the tearing male portions 5011;

the drawing structure 60 comprises a drawing male die 601 and a drawing female die 602, a drawing groove 6021 is formed in the position of the drawing female die 602 opposite to the drawing male die 601, and a gap between the outer circle of the drawing male die 601 and the inner circle of the drawing female die 602 is adapted to the thickness of the side wall of the product.

Preferably, in combination with the above scheme, for assembling each part, the die further comprises an upper die 10 and a lower die 30, the punching male die 401, the tearing male die 501 and the drawing male die 601 are arranged in the upper die 10, and the punching female die 402, the tearing female die 502 and the drawing female die 602 are arranged in the lower die 30.

Preferably, in combination with the above scheme, in order to facilitate the processing of the upper die 10 and the connection and fixation of each part in the upper die 10, the upper die 10 includes an upper die holder 101, and an upper pad 102 and an upper fixing plate 103 that are sequentially stacked and fixed below the upper die holder 101, and the upper end of the punching punch 401, the upper end of the tearing punch 501, and the upper end of the drawing punch 601 are fixedly connected to the upper fixing plate 103.

Preferably, in combination with the above scheme, in order to facilitate the processing of the lower die 30 and the connection and fixation of each part in the lower die 30, the lower die 30 includes a lower die holder 303, and a lower fixing plate 302 and a die plate 301 that are sequentially stacked and fixed above the lower die holder 303, and the punching die 402, the tearing die 502 and the drawing die 602 are fixedly disposed in the die plate 301.

Preferentially, in combination with the above scheme, in order to facilitate pushing the material belt open for unloading, the upper die 10 further comprises an upper unloading structure 20, the upper unloading structure 20 comprises an unloading backboard 201 and an unloading board 202 which are sequentially arranged from top to bottom, the upper die 10 is further provided with a limiting hanging board 203 for limiting the upper unloading structure 20, and the punching male die 401, the tearing male die 501 and the deep drawing male die 601 all penetrate through the upper unloading structure 20.

Preferably, in combination with the above solution, in order to facilitate pressing the material belt by using elastic force and pushing the upper discharging structure 20 and the material belt for discharging, the upper mold 10 is further provided with an upper elastic structure 70 for pushing the upper discharging structure 20, the upper elastic structure 70 includes a first spring 701, an upper ejector rod 702 is disposed below the first spring 701, and a lower end of the upper ejector rod 702 is abutted to an upper end of the upper discharging structure 20.

Preferably, in combination with the above solution, in order to facilitate the discharge of the waste, a blanking groove 403 is further provided in the lower die 30, and the blanking groove 403 is disposed below the tear cavity 502.

Preferably, in combination with the above solution, in order to facilitate the lifting of the product blank and the unloading of the product after the processing is completed, the tear structure 50 further includes a first float block 503 for lifting the product, the first float block 503 is movably disposed in the tear cavity die 502, and a second spring 504 is disposed below the first float block 503.

Preferably, in combination with the above solution, in order to facilitate the lifting of the product blank and the unloading of the product after the processing is completed, the drawing structure 60 further includes a second float block 603 for lifting the product, the second float block 603 is movably disposed in the drawing die 602, and a third spring 604 is disposed below the second float block 603.

Preferably, in combination with the above-mentioned scheme, in order to make the drawing punch 601 more easily enter the product for drawing, the inner side of the upper end of the drawing die 602 is provided with an R angle. The upper end of the punched product blank is also provided with a bending edge, and the bending edge of the upper end of the product blank can be cut and molded by carrying out the traditional steps of shaping, cutting off, cutting scraps and the like on the product blank on a subsequent progressive die station.

The working principle of the utility model is as follows:

when the punch press drives the upper die 10 to move upwards to the top point, the feeder sends the supported material belt of the product to the upper part of the concave die plate 301, the left side of the product blank is aligned to the punching male die 401 and the punching female die 402, then the punch press drives the upper die 10 and the upper discharging structure 20 to close the die downwards, the discharging plate 202 in the upper discharging structure 20 firstly contacts the material belt, then the material belt downwards until the material belt contacts the concave die plate 301 in the lower die 30, wherein the first spring 701 in the upper elastic structure 70 acts on the upper ejector rod 702, and the upper ejector rod 702 is propped against the upper surface of the discharging backboard 201, so that the discharging plate 202 elastically acts on the upper surface of the material belt to provide a pressing force, and the material belt is ensured not to change;

at this time, the punching male die 401 fixed in the upper die 10 extends out of the stripper 202, and is punched downwards to pass through the product blank and extend into the punching female die 402 until the die is completely closed, so that a fanned ring-shaped notch can be punched on the left side of the product blank, and the cut waste material falls from the blanking groove 403; the long arc side length of the fan ring notch is 24.8mm, the short arc side length is 15.5mm, and the connecting side length of the long arc side and the short arc side is 5.3mm, so that the product performance is more stable, and R0.5 can be arranged at four corners of the fan ring notch.

At the same time, the tearing-mouth male die 501 fixed in the upper die 10 extends out of the stripper plate 202 and contacts the upper surfaces of the other two product blanks which have been punched, while the first float block 503 contacts the lower surface of the material, the lower end of the tearing-mouth male die 501 is punched downwards through the periphery of the product blank and extends into the tearing-mouth female die 502, and due to the existence of the tearing-mouth chamfer 5012 at the bottom of the tearing-mouth male die 5011, the product blank is not completely punched, a part connected with the material belt is left, so that the product is easy to cut off in the subsequent step, and the diameter of the punched round cake-shaped product blank is 60mm;

at the same time, the drawing punch 601, which is fixed in the upper die 10, protrudes out of the stripper plate 202 and contacts the upper surface of the third product blank, where the tear has been completed, while the second float mass 603 contacts the lower surface of the material, and the drawing punch 601 gradually enters the drawing die 602 until the die is completely closed, drawing the product from a pie-shape into a dish-shaped configuration. At the moment, the waist-shaped notch on the left side of the product blank can be stretched and deformed into a U-shaped notch;

then the punch drives the upper die 10 to move upwards, the upper elastic structure 70 gradually pushes the upper discharging structure 20 away, so that the upper fixing plate 103 is separated from the discharging backboard 201, and the punching male die 401, the tearing male die 501 and the drawing male die 601 are retracted into the discharging plate 202; the first and second float masses 503, 603 also support upward movement of the product blank and the web, causing the product blank to leave the die plate 301.

Then the material belt is sent from left to right for one step distance, the mould closing and mould opening processes are carried out again, then the material belt leaves the mould of the utility model with the product blank after deep drawing, and is sent to the mould stations of shaping, punching, cutting out parts and cutting waste materials in the subsequent progressive mould, all stations in the process layout are completed, the product is punched out from the mould, and the mould automatic production is realized. The diameter of the processed product is 46.9mm, and the height is 5.5mm; the width of the U-shaped groove is 15mm, and the height is 3.85mm.

In the present utility model, all directional indications (such as up, down, left, right, front, rear, etc.) are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.

While the utility model has been described above by way of example with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the specific embodiments described above, but is intended to cover various modifications of the method concepts and technical solutions of the utility model, or applications without modifications, as such are within the scope of the utility model.

Claims (10)

1. The hollow liner stamping die is characterized by comprising a punching structure (40), a tearing structure (50) and a deep drawing structure (60);

the punching structure (40) comprises a punching male die (401) and a punching female die (402), wherein the lower end surface of the punching male die (401) is of a sector ring structure, and a sector ring groove (4021) is arranged on the punching female die (402) at a position opposite to the punching male die (401);

the tearing structure (50) comprises a tearing male die (501) and a tearing female die (502), a plurality of groups of tearing male dies (5011) are axially arranged on the outer circle of the tearing male die (501), and a tearing chamfer (5012) is arranged on one side of the bottom of the tearing male dies (5011); a tearing groove (5021) is formed in the position, opposite to the tearing convex part (5011), of the tearing female die (502);

the deep-drawing structure (60) comprises a deep-drawing male die (601) and a deep-drawing female die (602), a deep-drawing groove (6021) is formed in the position, opposite to the deep-drawing male die (601), of the deep-drawing female die (602), and the thickness of the side wall of the product is matched with the gap between the outer circle of the deep-drawing male die (601) and the inner circle of the deep-drawing female die (602).

2. The hollow gasket stamping die according to claim 1, further comprising an upper die (10) and a lower die (30), wherein the punching male die (401), the tearing male die (501) and the drawing male die (601) are arranged in the upper die (10), and the punching female die (402), the tearing female die (502) and the drawing female die (602) are arranged in the lower die (30).

3. The hollow gasket stamping die according to claim 2, wherein the upper die (10) comprises an upper die holder (101), an upper base plate (102) and an upper fixing plate (103) which are sequentially overlapped and fixed below the upper die holder (101), and the upper end of the punching male die (401), the upper end of the tearing male die (501) and the upper end of the drawing male die (601) are fixedly connected to the upper fixing plate (103).

4. A hollow liner stamping die as claimed in claim 3, wherein the lower die (30) comprises a lower die holder (303), and a lower fixing plate (302) and a die plate (301) which are sequentially overlapped and fixed above the lower die holder (303), and the punching die (402), the tearing die (502) and the drawing die (602) are fixedly arranged in the die plate (301).

5. The hollow gasket stamping die according to claim 3, wherein the upper die (10) further comprises an upper discharging structure (20), the upper discharging structure (20) comprises a discharging backboard (201) and a discharging plate (202) which are sequentially arranged from top to bottom, the upper die (10) further comprises a limiting hanging plate (203) for limiting the upper discharging structure (20), and the punching male die (401), the tearing male die (501) and the deep drawing male die (601) penetrate through the upper discharging structure (20).

6. A hollow gasket stamping die according to claim 3, characterized in that the upper die (10) is further provided with an upper elastic structure (70) for pushing away the upper discharging structure (20), the upper elastic structure (70) comprises a first spring (701), an upper ejector rod (702) is arranged below the first spring (701), and the lower end of the upper ejector rod (702) is abutted with the upper end of the upper discharging structure (20).

7. A hollow liner stamping die as claimed in claim 3, wherein a blanking groove (403) is further provided in the lower die (30), and the blanking groove (403) is provided below the tear cavity die (502).

8. The stamping die for the hollow gasket according to claim 1, wherein the tearing structure (50) further comprises a first floating block (503) for supporting the product, the first floating block (503) is movably arranged in the tearing female die (502), and a second spring (504) is arranged below the first floating block (503).

9. The hollow liner stamping die according to claim 1, wherein the deep-drawing structure (60) further comprises a second floating block (603) for supporting a product, the second floating block (603) is movably arranged in the deep-drawing die (602), and a third spring (604) is arranged below the second floating block (603).

10. The hollow liner stamping die according to claim 1 or 2, wherein an R angle is provided inside an upper end of the drawing die (602).