CN216989500U

CN216989500U - Punching mechanism of progressive die

Info

Publication number: CN216989500U
Application number: CN202220766272.2U
Authority: CN
Inventors: 刘忠福; 罗运长
Original assignee: Jiaxin Xiamen Precise Metal Co ltd
Current assignee: Jiaxin Xiamen Precise Metal Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-19
Anticipated expiration: 2032-03-31

Abstract

The utility model provides a punching mechanism of a progressive die, which comprises a top die, a bottom die and a power unit, wherein two groups of ejector pins and a stripping elastic block which are symmetrically arranged are arranged on the top die; the bottom die is provided with two groups of punching cutters which are symmetrically arranged, the punching cutters are provided with matching surfaces, and the bottom die is provided with a product processing station at the symmetrical midpoint position of the two groups of punching cutters; the power unit is arranged on the top die or the bottom die. When the punching device is used, the power unit is started to drive the top die to move towards the bottom die, so that the ejector pins are matched with the punching knives to drive the punching knives to move towards the direction of a product processing station, the punching knives reset after the two groups of punching knives punch the product into two symmetrical through holes, the top die and the bottom die are also separated, and the product is separated from the product processing station through the separation elastic block. The punching mechanism is combined into the progressive die for synchronous processing, so that the purposes of high-efficiency and high-quality production are achieved, and the production cost is reduced.

Description

Punching mechanism of progressive die

Technical Field

The utility model relates to the field of progressive dies, in particular to a punching mechanism of a progressive die.

Background

The progressive die is a cold stamping die which adopts a strip-shaped stamping raw material in a stamping stroke of a press machine and simultaneously completes a plurality of stamping processes on a pair of dies by using a plurality of different stations, and the material strip moves once at a fixed distance when the dies complete stamping until the product is completed.

In the conventional cup ironing machine, a pressing member inside the cup ironing machine needs to be provided with a rotating shaft to rotate so as to realize a pressing action, so that punching processing is needed when the member is produced. The existing treatment method adopts multiple processes, such as: the front face of the component is punched, the appearance is blanked and is bent for forming, then the side face of the component is punched through other punching mechanisms, and the number of working procedures is large, so that the problems of low production efficiency and high production cost are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a punching mechanism of a progressive die, and aims to solve the problems that the punching process of a pressing mechanism of the existing cup ironing machine is independent processing, the production efficiency is low, and the production cost is high.

The utility model is realized by the following steps: a progressive die punching mechanism comprising:

the ejection die is provided with two groups of ejection pins and an ejection block which are symmetrically arranged;

the bottom die is internally provided with two groups of punching cutters which are symmetrically arranged, the punching cutters are provided with matching surfaces which are abutted against or separately matched with the ejector pins, the bottom die is provided with a product processing station at the symmetrical midpoint position of the two groups of punching cutters, and the stripper elastic block is arranged towards the direction of the product processing station; and

and the power unit is arranged on the top die or the bottom die and is used for driving the top die to move towards the direction of the bottom die or driving the bottom die to move towards the direction of the top die.

Preferably, die-cut sword includes cutter head and connecting rod, the fitting surface sets up on the cutter head, connecting rod one end is run through the lateral wall setting of die block is in on the cutter head, the other end of connecting rod with the cover is equipped with reset spring between the lateral wall of die block.

Preferably, the mating surface is provided on a side of the cutter head remote from the product processing station.

Preferably, the mating surface is an inclined surface.

Preferably, the thimble is provided with an inclined plane which is in abutting fit with the inclined plane.

Preferably, the stripper block comprises a top block and a spring arranged between the top block and the top die.

Preferably, the bottom die is provided with an air blowing pin, and an air outlet of the air blowing pin faces to the direction of the product processing station.

The utility model has the beneficial effects that:

1. when the punching device is used, the power unit is started to drive the top die to move towards the bottom die, so that the ejector pins are matched with the punching knives to drive the punching knives to move towards the direction of a product processing station, the punching knives reset after the two groups of punching knives punch the product into two symmetrical through holes, the top die and the bottom die are also separated, and the product is separated from the product processing station through the separation elastic block. The punching mechanism is combined into the progressive die for synchronous processing, so that the aims of high-efficiency and high-quality production are fulfilled, and the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a punching mechanism of a progressive die according to an embodiment of the present invention in a die-separated state;

FIG. 2 is a schematic view of a punching mechanism of a progressive die according to an embodiment of the present invention in a clamped state;

fig. 3 is a partial schematic view of a punching mechanism of a progressive die according to an embodiment of the present invention.

Reference numerals:

10. carrying out top die; 101. a thimble; 102. removing the material elastic block;

1011. a bevel; 1021. a top block; 1022. a spring;

20. bottom die; 201. punching and cutting the knife; 202. a product processing station; 203. a blowing pin;

2011. a mating surface; 2012. a cutter head; 2013. a connecting rod; 2014. a return spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment,

Referring to fig. 1, 2 and 3, the present embodiment provides a punching mechanism of a progressive die, which includes a top die 10, a bottom die 20 and a power unit, wherein two sets of symmetrically arranged thimbles 101 and a stripper block 102 are disposed on the top die 10; two groups of symmetrically arranged punching cutters 201 are arranged in the bottom die 20, matching surfaces 2011 which are abutted against or separately matched with the ejector pins 101 are arranged on the punching cutters 201, a product processing station 202 is arranged at the symmetrical midpoint position of the two groups of punching cutters 201 on the bottom die 20, and the stripper elastic block 102 is arranged towards the direction of the product processing station 202; the power unit is arranged on the top mold 10 or the bottom mold 20, and the power unit is used for driving the top mold 10 to move towards the bottom mold 20, or driving the bottom mold 20 to move towards the top mold 10.

The punching mechanism in this embodiment is described by taking an example of application to a pressing member of a cup ironing machine, and the power unit may be a hydraulic cylinder or an air cylinder, or may be hydraulic power of a progressive die.

Specifically, the semi-finished product to be punched is conveyed to the product processing station 202 by using continuous conveying power, at this time, the power unit is started to drive the top die 10 to move towards the bottom die 20, so that the ejector pins 101 are matched with the punching knives 201 to drive the punching knives 201 to move towards the direction of the product processing station 202, until the two groups of punching knives 201 punch the product into two symmetrical through holes, the punching knives 201 reset, the top die 10 and the bottom die 20 are also separated, and the product is separated from the product processing station 202 by separating the elastic blocks. The punching mechanism is combined into the progressive die for synchronous processing, so that the purposes of high-efficiency and high-quality production are achieved, and the production cost is reduced.

As shown in fig. 1 and fig. 2, in this embodiment, the punching knife 201 includes a knife head 2012 and a connecting rod 2013, a matching surface 2011 is disposed on the knife head 2012, one end of the connecting rod 2013 penetrates through a side wall of the bottom die 20 and is disposed on the knife head 2012, and a return spring 2014 is sleeved between the other end of the connecting rod 2013 and the side wall of the bottom die 20. When the thimble 101 abuts against the matching surface 2011 of the cutter head 2012, the cutter head 2012 is pushed to move towards the product processing station 202 until the cutter head 2012 completes the punching action on the product, after the punching action is completed, the top die 10 and the bottom die 20 are separated, and the cutter head 2012 is reset through the reset spring 2014 of the connecting rod 2013, so that the cutter head 2012 is separated from the product. Therefore, through the two groups of punching cutters 201 which are symmetrically arranged, the purpose of symmetrically punching the product is achieved, and the production efficiency and quality are improved.

As shown in fig. 1 and 2, the fitting surface 2011 in this embodiment is disposed on a side of the cutter head 2012 remote from the product processing station 202. Therefore, when the thimble 101 abuts against the mating surface 2011, the cutter head 2012 is pushed to move towards the product processing station 202, so as to ensure the reasonableness of the structural matching.

Further, as shown in fig. 2, the mating surface 2011 in the present embodiment is an inclined surface 1011, and the thimble 101 is provided with an inclined surface 1011 abutting against and mating with the inclined surface 1011. By the engagement of the inclined surface 1011 and the inclined surface 1011, the contact area of the engagement portion can be increased, and the punching blade 201 can be pushed with a smooth force. Moreover, the inclination angle of the inclined plane 1011 can be designed, so that the contact point between the ejector rod and the punching knife 201 is different in position, the thrust is different, the punching requirements of different products are met, and the use adaptability is improved.

As shown in fig. 3, the stripper shoe 102 in this embodiment includes a top block 1021 and a spring 1022 disposed between the top block 1021 and the top die 10. When the top die 10 and the bottom die 20 are separated, the top block 1021 still supports against the product through the elastic force of the spring 1022, so that the punching knife 201 can be smoothly separated from the product, and further the top block 1021 is separated from the product again, thereby improving the smoothness of product separation and the efficiency of product production.

As shown in fig. 3, in the present embodiment, the bottom mold 20 is provided with an air blowing pin 203, an air outlet of the air blowing pin 203 is arranged toward the product processing station 202, and the air blowing pin 203 is communicated with the air pump. After the stripping bullet block 102 is separated from the product, the product is blown by the blowing pin 203 through the air supply of the air pump, so that the product on the product processing station 202 is blown out, and the effect of efficient discharging is realized; or, the waste product materials cut by the punching knife 201 are blown out through the blowing pin 203 to keep the interior of the die clean, so that the product can be further processed in the following process, and the practicability is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching mechanism of a progressive die, comprising:

2. The progressive die punching mechanism of claim 1, wherein: die-cut sword is including cutter head and connecting rod, the fitting surface sets up on the cutter head, connecting rod one end is run through the lateral wall setting of die block is in on the cutter head, the other end of connecting rod with the cover is equipped with reset spring between the lateral wall of die block.

3. The progressive die punching mechanism of claim 2, wherein: the matching surface is arranged on one side surface of the cutter head far away from the product processing station.

4. The punching mechanism of a progressive die according to claim 1 or 3, wherein: the matching surface is an inclined surface.

5. The progressive die punching mechanism of claim 4, wherein: the thimble is provided with the inclined plane is supported to the complex inclined plane mutually.

6. The punching mechanism of a progressive die according to claim 1, wherein: the stripping elastic block comprises a top block and a spring arranged between the top block and the top die.

7. The punching mechanism of a progressive die according to claim 1 or 6, wherein: the bottom die is provided with a blowing pin, and an air outlet of the blowing pin faces towards the direction of the product processing station.