CN107282768B

CN107282768B - Continuous die

Info

Publication number: CN107282768B
Application number: CN201710422635.4A
Authority: CN
Inventors: 蒋军林; 刘志忠
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2017-06-07
Filing date: 2017-06-07
Publication date: 2021-11-19
Anticipated expiration: 2037-06-07
Also published as: CN107282768A

Abstract

The invention discloses a continuous die, which is used for punch forming of a material belt and comprises an upper die device and a lower die device, wherein the material belt is arranged on the lower die device; the upper die device comprises at least one cylinder assembly and a punch head arranged corresponding to the cylinder assembly; each air cylinder assembly comprises an air cylinder and a push rod connected with the output end of the air cylinder, the air cylinder is used for driving the push rod to extend or retract along the horizontal direction, when the push rod retracts, the punch head corresponding to the push rod is not contacted with the push rod, and the punch head is in a state of retracting into the upper die device in the vertical direction; when the push rod stretches out, the punch corresponding to the push rod is pushed in the vertical direction to move downwards to the bottom surface of the protruding upper die device in the vertical direction, and then the punch performs punching processing on the material belt when the press presses the upper die device downwards. According to the continuous die, the corresponding punch is driven by the air cylinder to perform stamping work, so that the continuous die can be stamped by a press with a smaller tonnage, and the yield of stamped products stamped by the continuous die is improved.

Description

Continuous die

Technical Field

The invention relates to a continuous die, in particular to a stamping continuous die.

Background

As shown in fig. 1, a schematic structural diagram of a punched product is shown, where the punched product 1 includes two

end portions

11 and 12 and a tooth-shaped portion 13 sandwiched between the two

end portions

11 and 12, and the tooth-shaped portion 13 includes a plurality of wavy saw teeth 131.

When the existing die is used for punching the punched product 1, all the saw teeth 131 are generally punched at one time when the tooth-shaped part 13 is formed, or a plurality of saw teeth 131 are punched in sequence by using high and low punches. However, whether a one-time punching method or a method of sequentially punching by using high and low punches is adopted, the die requires a large pressure to cause the material to yield and deform when punching the saw teeth 131, so that a large-tonnage press, such as a 500-ton press, is required to provide the pressure; in addition, in the forming process of the saw-tooth 131, the saw-tooth 131 is in a stretched state when the material is formed to a half due to the tensile stress in the longitudinal direction of the material, and the saw-tooth 131 is partially broken due to the limited elongation of the material.

From the above, it is difficult to form the stamped product 1 by punching with the conventional die, and the product yield is very low.

Disclosure of Invention

The technical problem mainly solved by the embodiment of the invention is to provide the continuous die, wherein punches of the continuous die such as punching, trimming and forming are controlled by adopting cylinder transmission, so that the continuous die can be formed by a press with smaller tonnage in a stamping mode, and the yield of stamped products stamped by the continuous die is improved.

In order to solve the above technical problem, one technical solution adopted by the embodiment of the present invention is: providing a continuous die for punch forming of a material belt, wherein the continuous die comprises an upper die device and a lower die device, and the material belt is arranged on the lower die device; the upper die device comprises at least one cylinder assembly and a punch head arranged corresponding to the cylinder assembly; each air cylinder assembly comprises an air cylinder and a push rod connected with the output end of the air cylinder, the air cylinder is used for driving the push rod to extend or retract along the horizontal direction, and when the push rod retracts, the punch head corresponding to the push rod is not in contact with the push rod and can retract into the upper die device in the vertical direction; when the push rod extends out, the punch corresponding to the push rod is pushed in the vertical direction to move downwards along the vertical direction to protrude out of the bottom surface of the upper die device, and then the punch performs punching processing on the material belt when the upper die device is pressed down by a press machine.

In some of these embodiments, the upper die apparatus comprises two first cylinder assemblies, two second cylinder assemblies and two third cylinder assemblies; the upper die device also comprises two first punches for trimming and punching the material belt, a second punch for cutting and punching the material belt and a third punch for forming and punching the material belt; each first cylinder assembly is arranged corresponding to one first punch respectively, the two second cylinder assemblies are arranged on two sides of the second punch respectively, and the two third cylinder assemblies are arranged on two sides of the third punch respectively.

In some embodiments, the upper die device further includes two fourth cylinder assemblies and two fourth punches for performing pilot punching on the material strip, and each of the fourth cylinder assemblies is respectively disposed corresponding to one of the fourth punches.

In some embodiments, the upper die device comprises an upper die plate, a first base plate, a first mounting plate, a second base plate and a second mounting plate which are sequentially arranged from top to bottom along the vertical direction and fixedly connected with each other; each first cylinder assembly comprises a first cylinder connecting plate, a first cylinder and a first push rod, one end of the first cylinder connecting plate is fixedly arranged on the upper template, the output end of the first cylinder penetrates through the other end of the first cylinder connecting plate and is connected with the first push rod, and the first push rod is arranged between the first base plate and the first mounting plate in a sliding mode along the horizontal direction.

In some embodiments, each second cylinder assembly includes a second cylinder connecting plate, a second cylinder, and a second push rod, one end of the second cylinder connecting plate is fixedly disposed on the upper mold plate, an output end of the second cylinder penetrates through the other end of the second cylinder connecting plate and is connected to the second push rod, and the second push rod is slidably disposed between the first pad plate and the first mounting plate along a horizontal direction.

In some embodiments, each third cylinder assembly includes a third cylinder connecting plate, a third cylinder, and a third push rod, one end of the third cylinder connecting plate is fixedly disposed on the upper mold plate, an output end of the third cylinder penetrates through the other end of the third cylinder connecting plate and is connected to the third push rod, and the third push rod is slidably disposed between the first base plate and the first mounting plate along a horizontal direction.

In some embodiments, each of the fourth cylinder assemblies includes a fourth cylinder connecting plate, a fourth cylinder, and a fourth push rod, one end of the fourth cylinder connecting plate is fixedly disposed on the second mounting plate, an output end of the fourth cylinder passes through the other end of the fourth cylinder connecting plate and is connected to the fourth push rod, and the fourth push rod is slidably disposed between the second base plate and the second mounting plate along a horizontal direction.

In some embodiments, the first, second and third punches are each disposed vertically through the first, second and second mounting plates, and the fourth punch is disposed vertically through the second mounting plate.

In some of these embodiments, the two first cylinder assemblies, the two second cylinder assemblies, and the two third cylinder assemblies are each mounted on opposite sides of the upper platen; the two fourth cylinder assemblies are mounted to the same side of the second mounting plate.

In some of these embodiments, the cylinder strokes of the first, second, third and fourth cylinders are equal.

The beneficial effects of the embodiment of the invention are as follows: according to the continuous die provided by the embodiment of the invention, the corresponding punch is driven by the air cylinder to perform stamping operation, so that the continuous die can be subjected to stamping forming by a press with a smaller tonnage, and the yield of stamping products stamped by the continuous die is improved.

Drawings

Fig. 1 is a schematic structural view of a punched product according to an embodiment of the present invention;

FIG. 2 is a front view of a continuous mold according to an embodiment of the present invention;

FIG. 3 is a front view of the continuous mold shown in FIG. 2;

FIG. 4 is an exploded view of the continuous mold shown in FIG. 2;

FIG. 5 is an exploded front view of an upper die assembly of the continuous die shown in FIG. 4;

FIG. 6 is another exploded view of the upper die apparatus shown in FIG. 5;

FIG. 7 is another exploded view of the upper die apparatus shown in FIG. 5;

FIG. 8 is an elevational view of the first mounting plate, first, second and third cylinder assemblies and first, second and third punch assemblies of the upper die apparatus illustrated in FIG. 5;

FIG. 9 is a top view of the first mounting plate, first, second and third cylinder assemblies and first, second and third punch assemblies shown in FIG. 8;

FIG. 10 is a front view of the first mounting plate, first, second and third cylinder assemblies and first, second and third punch assemblies shown in FIG. 8;

FIG. 11 is an elevational view of the second plate assembly of the upper die apparatus shown in FIG. 5 assembled with a fourth cylinder assembly and a fourth punch;

FIG. 12 is a top view of the second plate mount and fourth cylinder assembly and fourth punch assembly shown in FIG. 11;

FIG. 13 is a front view of a lower die assembly of the continuous die shown in FIG. 4;

fig. 14 is a plan view of the lower die apparatus shown in fig. 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 2, 3 and 4, which are respectively a front view, a front view and an exploded view of a continuous die according to an embodiment of the present invention, a continuous die 200 is used for stamping the material strip 100 into the stamped product 1 shown in fig. 1. The continuous die 200 comprises an upper die device 300 and a lower die device 400, a guide sleeve 301 is fixedly arranged on the upper die device 300, a guide pillar 401 is fixedly arranged on the lower die device 400, the upper die device 300 and the lower die device 400 are installed and used through the cooperation of the guide sleeve 301 and the guide pillar 401, and the upper die device 300 can be driven by a press machine (not shown) to carry out die closing and die splitting actions relative to the lower die device 400 through the guide sleeve 301 and the guide pillar 401.

In the embodiment of the present invention, the moving direction of the upper die apparatus 300 with respect to the lower die apparatus 400 is defined as a vertical direction, and the direction perpendicular to the vertical direction is defined as a horizontal direction.

With continuing reference to fig. 5, 6 and 7, which are exploded views of the upper die assembly 300, the upper die assembly 300 includes an upper die base 302, an upper die plate 303, a first backing plate 304, a first mounting plate 305, a second backing plate 306 and a second mounting plate 307, which are sequentially arranged and fixedly connected from top to bottom along the vertical direction of the continuous die 100.

The upper die apparatus 300 further comprises two first cylinder assemblies 308, two second cylinder assemblies 309 and two third cylinder assemblies 310 fixedly mounted on the upper die plate 303, and two fourth cylinder assemblies 311 fixedly mounted on the second mounting plate 307. Wherein, the two first cylinder assemblies 308, the two second cylinder assemblies 309 and the two third cylinder assemblies 310 are respectively and oppositely arranged on two opposite sides of the upper template 303; two fourth cylinder assemblies 311 are mounted on the same side of the second mounting plate 307.

Referring to fig. 8, 9 and 10, each first cylinder assembly 308 includes a first cylinder connecting plate 3081, a first cylinder 3082 and a first pushrod 3083. Wherein, one end of the first cylinder connecting plate 3081 is fixedly arranged at one side of the upper template 303; the output end of the first cylinder 3082 penetrates through the first cylinder connecting plate 3081, and the first cylinder 3082 is fixedly arranged at the other end, far away from the upper template 303, of the first cylinder connecting plate 3081; the first push rod 3083 is connected to an output end of the first cylinder 3082, and the first push rod 3083 is slidably disposed between the first pad plate 304 and the first mounting plate 305 in a horizontal direction, that is, the first cylinder 3082 can drive the first push rod 3083 to extend and retract in the horizontal direction.

Similar to the first cylinder assembly 308, each second cylinder assembly 309 includes a second cylinder connecting plate 3091, a second cylinder 3092, and a second pushrod 3093. One end of the second cylinder connecting plate 3091 is fixedly arranged on one side of the upper template 303; the output end of the second cylinder 3092 penetrates through the second cylinder connecting plate 3091, and the second cylinder 3092 is fixedly arranged at the other end, far away from the upper template 303, of the second cylinder connecting plate 3091; the second push rod 3093 is connected to the output end of the second cylinder 3092, and the second push rod 3093 is slidably disposed between the first pad plate 304 and the first mounting plate 305 in the horizontal direction, that is, the second cylinder 3092 can drive the second push rod 3093 to extend and retract in the horizontal direction.

Each third cylinder assembly 310 includes a third cylinder connecting plate 3101, a third cylinder 3102, and a third push rod 3103. Wherein, one end of the third cylinder connecting plate 3101 is fixedly arranged at one side of the upper template 303; the output end of the third cylinder 3102 passes through a third cylinder connecting plate 3101 and the third cylinder 3102 is fixedly arranged at the other end of the third cylinder connecting plate 3101 far away from the upper template 303; the third push rod 3103 is connected to the output end of the third cylinder 3102, and the third push rod 3103 is slidably disposed between the first base plate 304 and the first mounting plate 305 in the horizontal direction, that is, the third cylinder 3102 can drive the third push rod 3103 to extend and retract in the horizontal direction.

Referring again to fig. 11 and 12, each of the fourth cylinder assemblies 311 includes a fourth cylinder connecting plate 3111, a fourth cylinder 3112 and a fourth push rod 3113. One end of each of the two fourth cylinder connecting plates 3111 is fixedly arranged on one side of the second mounting plate 307; an output end of the fourth cylinder 3112 passes through the fourth cylinder connecting plate 3111 and the fourth cylinder 3112 is fixedly disposed at the other end of the fourth cylinder connecting plate 3111 away from the second mounting plate 307; the fourth push bar 3113 is connected to an output end of the fourth cylinder 3112, and the fourth push bar 3113 is slidably disposed between the second pad 306 and the second mounting plate 307 in a horizontal direction, that is, the fourth cylinder 3112 can drive the fourth push bar 3113 to extend and retract in the horizontal direction.

In the embodiment of the present invention, the first push rod 3083, the second push rod 3093 and the third push rod 3103 are slidably disposed in parallel horizontal directions on the same horizontal plane; the fourth push bar 3113 is slidably provided on the other horizontal plane in the other horizontal direction perpendicular to the horizontal direction of the first push bar 3083, the second push bar 3093 and the third push bar 3103. It is understood that the fourth push bar 3113 may be disposed to slide along another horizontal direction parallel to the horizontal direction of the first push bar 3083, the second push bar 3093 and the third push bar 3103 on another horizontal plane, that is, two fourth cylinder assemblies 311 are mounted on two opposite sides of the second mounting plate 307. It will also be appreciated that the first pushrod 3083 may be disposed to slide on the same horizontal plane as the second pushrod 3093 and the third pushrod 3103, but in a direction perpendicular to the sliding direction of the second pushrod 3093 and the third pushrod 3103, i.e., both first cylinder assemblies 308 are mounted on the same side of the top mold plate 303.

The upper die device 300 further includes a first punch 312, a second punch 313, a third punch 314, and a fourth punch 315. Still referring to fig. 8, 9 and 10, the number of first punches 312 is two, the number of second punches 313 is one, and the number of third punches 314 is one; referring to fig. 11 and 12, the number of the fourth punches 315 is two. Each first cylinder assembly 308 is arranged corresponding to one first punch 312; the two second cylinder assemblies 309 are respectively arranged on two sides of the second punch 313; two third cylinder assemblies 310 are respectively arranged on two sides of the third punch 314; each of the fourth cylinder assemblies 311 is disposed corresponding to a fourth punch 315.

Specifically, a first punch 312, a second punch 313, and a third punch 314 are each disposed through the first mounting plate 305, the second backing plate 306, and the second mounting plate 307 in the vertical direction. Wherein, when the first push rod 3083 is retracted, the first punch 312 is not in contact with the first push rod 3083, and the first punch 312 is in a state of being retracted into the upper die apparatus 300 in the vertical direction; when the first push rod 3083 extends, one end of the first punch 312 contacts with the first push rod 3083 of the first cylinder assembly 308, and is pushed by the first push rod 3083 in the horizontal direction, and the other end of the first punch 312 can penetrate through the first mounting plate 305, the second backing plate 306 and the second mounting plate 307 in the vertical direction and move downward to the bottom surface of the protruding upper die device 300, so as to perform stamping processing on the material strap 100 disposed on the lower die device 400. That is, when the first cylinder 3082 is activated, the first cylinder 3082 drives the first push rod 3083 to slide along the horizontal direction of the first mounting plate 305, the sliding of the first push rod 3083 presses the first punch 312 downward along the vertical direction, so that the first punch 312 moves downward along the vertical direction in the first mounting plate 305, the second backing plate 306 and the second mounting plate 307, and the first punch 312 performs a punching process on the material strip 100.

Similarly, when the second push rod 3093 is retracted, the second punch 313 does not contact the second push rod 3093, and the second punch 313 is in a state of being retracted into the upper die apparatus 300 in the vertical direction; when the second push rod 3093 extends out, one end of the second punch 313 contacts with the second push rod 3093 of the second cylinder assembly 309 and is pushed by the second push rod 3093 in the horizontal direction, and the other end of the second punch 313 can penetrate through the first mounting plate 305, the second shim plate 306 and the second mounting plate 307 in the vertical direction and move downwards to the bottom surface of the protruding upper die device 300, so as to perform stamping processing on the material belt 100 arranged on the lower die device 400. That is, when the second cylinder 3092 is activated, the second cylinder 3092 drives the second push rod 3093 to slide along the horizontal direction of the first mounting plate 305, the sliding of the second push rod 3093 presses the second punch 313 downward along the vertical direction, so that the second punch 312 moves downward along the vertical direction in the first mounting plate 305, the second backing plate 306 and the second mounting plate 307, and the second punch 313 performs the punching process on the material strip 100.

When the third push rod 3103 is retracted, the third punch 314 is not in contact with the third push rod 3103, and the third punch 314 is retracted in the upper die apparatus 300 in the vertical direction; when the third push rod 3103 extends, one end of the third punch 314 contacts the third push rod 3103 of the third cylinder assembly 310, and is pushed by the third push rod 3103 in the horizontal direction, and the other end of the third punch 314 can penetrate through the first mounting plate 305, the second backing plate 306 and the second mounting plate 307 in the vertical direction and move downward to protrude out of the bottom surface of the upper die assembly 300, so as to punch the material tape 100 arranged on the lower die assembly 400. That is, when the third cylinder 3102 is activated, the third cylinder 3102 drives the third push rod 3103 to slide along the horizontal direction of the first mounting plate 305, and the sliding of the third push rod 3103 presses the third punch 314 downward in the vertical direction, so that the third punch 314 moves downward in the vertical direction among the first mounting plate 305, the second backing plate 306 and the second mounting plate 307, and the third punch 314 punches the strip of material 100.

A fourth punch 315 is disposed through the second mounting plate 307, wherein when the fourth push rod 3113 is retracted, the fourth punch 315 is not in contact with the fourth push rod 3113, and the fourth punch 315 is in a state of being retracted into the upper die apparatus 300 in the vertical direction; when the fourth push rod 3113 extends, one end of the fourth punch 315 may contact with the fourth push rod 3113 of the fourth cylinder assembly 311, and when the fourth push rod 3113 is pushed in the horizontal direction, the other end of the fourth punch 315 may penetrate through the second mounting plate 307 in the vertical direction and move downward to the bottom surface of the protruding upper die device 300, so as to perform a punching process on the material strip 100 disposed on the lower die device 400. That is, when the fourth cylinder 3112 is activated, the fourth cylinder 3112 drives the fourth push rod 3113 to slide along the horizontal direction of the second mounting plate 307, and the sliding of the fourth push rod 3113 presses the fourth punch 315 downward along the vertical direction, so that the fourth punch 315 moves downward along the vertical direction in the second mounting plate 307, and the fourth punch 315 performs the punching process on the strip material 100.

Specifically, in the embodiment of the present invention, the ends of the first push rod 3083, the second push rod 3093, the third push rod 3103 and the fourth push rod 3113 contacting the first, second, third and

fourth punches

312, 313, 314 and 315, respectively, are tapered slopes such that the movement of the first, second, third and

push rods

3083, 3093, 3103 and 3113 in the horizontal direction is converted into the movement of the first, second, third and

fourth punches

312, 313, 314 and 315 in the vertical direction.

With reference to the structure of the pressed product 1 of fig. 1, in the embodiment of the present invention, the two first punches 312 are trimming punches for trimming both side edges of the tooth-shaped portion 13 of the pressed product 1 so that the width of the tooth-shaped portion 13 is smaller than the widths of the both

end portions

11 and 12. Since the trimming punches are small in size, a stable control state can be achieved by controlling a first punch 312 by a first push rod 3083 of a first cylinder 3082.

The third punch 314 is a forming punch for wave-forming the tooth-shaped portion 13 of the punched product 1 to form the serrations 131 in the tooth-shaped portion 13. Since the size of the forming punch is equal to the width of the wavy saw teeth 131, that is, the size of the forming punch is large, it is necessary to control one third punch 314 in common by the third push rods 3103 of the two third cylinders 3102 disposed at both sides of the third punch 314 so that the third punch 314 can stably move in the vertical direction.

The second punch 313 is a cutting punch for cutting the punched product 1 to form the both

end portions

11 and 12. Since the size of the cutting punch is equal to the width size of the

end portions

11 and 12, that is, the size of the cutting punch is large, it is necessary to commonly control one second punch 313 by second push rods 3093 of two second cylinders 3092 provided at both sides of the second punch 313 so that the second punch 313 can stably move in the vertical direction.

The two fourth punches 315 are guiding punches, and are used for guiding two side edges of the saw tooth 131 formed by the third punch 314, so as to correct or ensure that the machining position of the third punch 314 does not deviate, and the edge of the saw tooth 131 finally formed by the punched product 1 is neat. Since each pilot punch is small in size, a stable control state can be achieved by controlling a fourth punch 315 by a fourth push rod 3113 of a fourth cylinder 3112.

Referring to fig. 13 and 14, which are a front view, a top view and a front view of a lower die device 400, in an embodiment of the present invention, the lower die device 400 includes a lower die plate 402, a lower pad plate 403 and a lower die base 404, which are sequentially and fixedly connected from top to bottom along a vertical direction of the continuous die 100, and the lower die device 400 further includes a lower supporting plate 405, which is fixedly disposed on the lower die base 404 and located at one side of the lower die plate 402 and the lower pad plate 403.

The material belt 100 is movably disposed on the surface of the lower mold plate 402 facing the upper mold device 300 and the lower support plate 405, and the material belt 100 can move along the surfaces of the lower mold plate 402 and the lower support plate 405 by the driving of a feeding machine (not shown), so that different portions of the material belt 100 can be processed corresponding to different punches of the upper mold device 300.

The lower mold plate 402 is provided with corresponding blanking holes corresponding to different punches of the upper mold device 300, so that the punches of the upper mold device 300 can perform corresponding punching processing on the material strip 100.

The progressive die 200 according to the embodiment of the present invention may be configured with different cylinder assemblies of the upper die apparatus 300 according to different structures of the punched product, and may be configured with different movement modes of the cylinder assemblies of the upper die apparatus 300 according to different structures of the punched product.

In the embodiment of the invention, the first, second, third and

fourth cylinders

3082, 3092, 3102 and 3112 have the same type, the time point of the cylinder transmission is controlled by the servo circuit, and the stroke of each cylinder is equal, that is, the punching stroke of the punch corresponding to each cylinder is also equal. It will be appreciated that the first, second, third and

fourth cylinders

3082, 3092, 3102 and 3112 may be of different sizes, with the size of the corresponding push block of each cylinder being adjusted to accommodate the corresponding punch.

The structural dimensions of the stamped product 1 of the embodiment of the invention are: the length of the end part 11 and the end part 12 in the length direction of the punched product 1 is 15 punching strokes, and the length of the tooth-shaped part 13 in the length direction of the punched product 1 is 41 punching strokes, i.e. the tooth-shaped part 13 comprises 41 wavy saw teeth 131.

In the press product 1 according to the embodiment of the present invention, the operation processes of the first cylinder 3082, the second cylinder 3092, the third cylinder 3102, and the fourth cylinder 3112 are as follows: when the continuous die 200 stamps the strip of material 100 15 times, the strip of material 100 forms the end portion 11; then, when the continuous die 200 starts the 16 th punching, the first cylinder 3082 starts to operate, the first cylinder 3082 drives the first punch 312 to cut the edge of the strip of material 100, and the first cylinder 3082 stops after continuously operating for 41 times, so that the first cylinder 3082 drives the first punch 312 to punch and punch the edge material of the tooth-shaped portion 13; when the continuous die 200 starts to perform the 32 th stamping, that is, the 17 th stamping of the first cylinder 3082 continues, the third cylinder 3102 starts to operate, the third cylinder 3102 drives the third punch 314 to perform the wave-shaped stamping forming on the tooth-shaped portion 13, and the third cylinder 3102 stops after 41 times of continuous operation, so that the tooth-shaped portion 13 forms 41 wave-shaped saw teeth 131; when the continuous die 200 starts to perform 37 th punching, that is, when the third cylinder 3102 continues to operate for 6 th time, the fourth cylinder 3112 starts to operate, the fourth cylinder 3112 drives the fourth punch 315 to guide the two sides of the wavy saw teeth 131 of the tooth-shaped portion 13, and the fourth cylinder 3102 stops after 35 continuous operations, so that the edge of the tooth-shaped portion 13 of the punched product 1 is aligned; when the continuous die 200 starts to perform the 72 th punching, that is, the third cylinder 3102 continues to operate for the 41 th time, the second cylinder 3092 starts to operate, the second cylinder 3092 drives the second punch 313 to cut the strip of material 100 to form the end portion 12 of the punched product 1, and the second cylinder 3092 operates only once. So far, the processing of one punched product 1 is completed, and when another punched product 1 needs to be processed and formed by the material belt 100, the above working process of the continuous die 200 is circulated.

According to the continuous die 200 provided by the embodiment of the invention, the corresponding punch is driven by the air cylinder to perform stamping operation, so that the continuous die 200 can be subjected to stamping forming by a press with a smaller tonnage, and the yield of stamping products stamped by the continuous die is improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A continuous die is used for punch forming of a material belt and is characterized by comprising an upper die device and a lower die device, wherein the material belt is arranged on the lower die device; the upper die device comprises at least one cylinder assembly and a punch head arranged corresponding to the cylinder assembly; each air cylinder assembly comprises an air cylinder and a push rod connected with the output end of the air cylinder, the air cylinder is used for driving the push rod to extend or retract along the horizontal direction, and when the push rod retracts, the punch head corresponding to the push rod is not in contact with the push rod and can retract into the upper die device in the vertical direction; when the push rod extends out, the punch head corresponding to the push rod is pushed along the vertical direction to move downwards along the vertical direction to protrude out of the bottom surface of the upper die device, and then the punch head performs punching processing on the material belt when the upper die device is pressed down by a press machine; the upper die device comprises two first cylinder assemblies, two second cylinder assemblies and two third cylinder assemblies; the upper die device also comprises two first punches which are respectively used for trimming and punching two opposite sides of the material belt, a second punch which cuts and punches the material belt along the width direction and a third punch which performs wave forming and punching between the trimming parts at the two sides of the material belt; each first cylinder assembly is arranged corresponding to one first punch respectively to control the corresponding first punch, the two second cylinder assemblies are arranged on two sides of the second punch respectively and control one second punch together, the two third cylinder assemblies are arranged on two sides of the third punch respectively and control one third punch together; the two fourth punches are guiding punches and are used for guiding two side edges of the sawteeth formed by the third punches, so that the machining position of the third punch is not inclined, and the edges of the sawteeth formed by the punched product are neat.

2. The continuous mold according to claim 1, wherein the upper mold device comprises an upper mold plate, a first base plate, a first mounting plate, a second base plate and a second mounting plate which are sequentially arranged from top to bottom in the vertical direction and fixedly connected; each first cylinder assembly comprises a first cylinder connecting plate, a first cylinder and a first push rod, one end of the first cylinder connecting plate is fixedly arranged on the upper template, the output end of the first cylinder penetrates through the other end of the first cylinder connecting plate and is connected with the first push rod, and the first push rod is arranged between the first base plate and the first mounting plate in a sliding mode along the horizontal direction.

3. The progressive die of claim 2 wherein each second cylinder assembly comprises a second cylinder connecting plate, a second cylinder, and a second push rod, wherein one end of the second cylinder connecting plate is fixedly disposed on the upper die plate, an output end of the second cylinder passes through the other end of the second cylinder connecting plate and is connected to the second push rod, and the second push rod is slidably disposed between the first backing plate and the first mounting plate along a horizontal direction.

4. The progressive die of claim 3 wherein each third cylinder assembly comprises a third cylinder connecting plate, a third cylinder, and a third push rod, wherein one end of the third cylinder connecting plate is fixedly disposed on the upper die plate, an output end of the third cylinder passes through the other end of the third cylinder connecting plate and is connected to the third push rod, and the third push rod is slidably disposed between the first base plate and the first mounting plate in a horizontal direction.

5. The progressive die of claim 4 wherein each fourth cylinder assembly comprises a fourth cylinder connecting plate, a fourth cylinder, and a fourth push rod, wherein one end of the fourth cylinder connecting plate is fixedly disposed on the second mounting plate, an output end of the fourth cylinder passes through the other end of the fourth cylinder connecting plate and is connected to the fourth push rod, and the fourth push rod is slidably disposed between the second base plate and the second mounting plate along a horizontal direction.

6. The progressive die of claim 5 wherein the first, second and third punches are each disposed vertically through the first, second and second mounting plates and the fourth punch is disposed vertically through the second mounting plate.

7. The progressive die of claim 5 wherein said two first cylinder assemblies, two second cylinder assemblies and two third cylinder assemblies are each mounted on opposite sides of said upper die plate; the two fourth cylinder assemblies are mounted to the same side of the second mounting plate.

8. The progressive die of claim 5 wherein the cylinder strokes of the first, second, third and fourth cylinders are equal.