CN215143864U

CN215143864U - Anti-jumping waste mechanism for reducing negative pressure of punching die

Info

Publication number: CN215143864U
Application number: CN202120350604.4U
Authority: CN
Inventors: 汪浩然
Original assignee: Quzhou Zhongde Precision Machinery Co ltd
Current assignee: Quzhou Zhongde Precision Machinery Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-12-14
Anticipated expiration: 2031-02-08

Abstract

The utility model provides a scrap jumping prevention mechanism for reducing negative pressure of a punching die, which comprises an upper template; the bottom of the upper template is provided with a group of cushion strips with sleeve structures, and the bottom of the upper template is provided with a top plate and a rubber ring; a group of suspension bolts are arranged on the top plate, and an inner pushing material is arranged at the bottoms of the suspension bolts; an annular groove is formed in each of the upper template and the top plate, the two annular grooves are aligned, and a rubber ring is arranged between the two annular grooves. The lower template is provided with an exhaust hole and a stepped discharge hole, the lower template is provided with a waste hole which is aligned with the exhaust hole and the discharge hole, a negative pressure cavity can be formed when the die is separated because the speed of the punch is very high in the production process, the waste hole of the lower template is communicated with the concave-convex mold, air can be rapidly supplemented to enter the middle position of a product through the structure, the negative pressure is reduced, and the effect of improving scrap jumping is achieved.

Description

Anti-jumping waste mechanism for reducing negative pressure of punching die

Technical Field

The utility model belongs to the technical field of stamping die, more specifically say, in particular to cut-out press reduces jumping waste material mechanism of preventing of negative pressure.

Background

The stamping die is a special technological device for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die), wherein the part punching can be involved in the stamping die, a punching die can be used in the punching process, the phenomenon of scrap jumping can be generated in the punching process of the die, and a scrap jumping prevention mechanism for reducing negative pressure needs to be arranged on the punching die.

For example, application No.: the Chinese utility model patent of CN201822275305.X discloses a punching die, which structurally comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper clamping plate, a stop plate and a stripper plate, and the lower die comprises a lower die base, a lower backing plate and a lower die plate; the punch comprises a long punch and a short punch, the upper surface of the lower template is an inclined surface, the height of the inclined surface opposite to the long punch is larger than that of the inclined surface opposite to the short punch, and the inclined angle of the inclined surface is 2-4 degrees. Compared with the prior art, the utility model discloses a stamping die becomes the blanking force in the twinkling of an eye in one section continuous time from a blanking force in the twinkling of an eye when the punching press, greatly reduced blanking force, can realize that the punching press of great size part is accomplished to the small-tonnage press, avoided causing the problem of punching press product surface unevenness or deformation moreover, reduce the noise and the loss of punch press, prolong the life of punch press.

Based on the search for patent numbers, the defects in the prior art are combined to find that:

the existing die structure can punch a thick plate when punching, a punching female die needs to be opened by adopting a large gap, and the punching material is an aluminum plate punching material, so that the self weight of the material is small, and the phenomenon of severe scrap jumping can be generated in the production process

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a scrap-jumping-preventing mechanism for reducing negative pressure of a punching die is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cut-out press reduces preventing of negative pressure and jumps waste material mechanism to solve current mould structure can be to the thick plate blanking when punching a hole, the die that punches a hole need adopt the big clearance die sinking, again because the material that punches a hole is towards the aluminium sheet material, this kind of material dead weight is less, can produce in the production process and seriously jump bits phenomenon.

The utility model is used for a cut-out press reduces purpose and efficiency of anti-bouncing waste material mechanism of negative pressure, is reached by following concrete technical means:

a scrap jumping prevention mechanism for reducing negative pressure of a punching die comprises an upper template; the bottom of the upper template is provided with a group of cushion strips with a sleeve structure, and the bottom of the upper template is provided with a top plate and a rubber ring; a group of suspension bolts are arranged on the top plate, and an inner pushing material is arranged at the bottoms of the suspension bolts; the upper template and the top plate are both provided with an annular groove, the two annular grooves are aligned, and a rubber ring is arranged between the two annular grooves; a group of stepped holes are formed in the annular groove of the top plate, and the suspension bolts are mounted on the stepped holes; the bottom of the top plate is provided with a base plate in sliding connection, a group of ejector pins are arranged on the top plate, and the bottom of the top plate is provided with a stamping block; a female die is installed on the outer side of the inner pushing material, a concave-convex die is installed at the bottom of the inner pushing material, and a lower template is installed at the bottom of the concave-convex die.

Furthermore, the bottom of the upper template is provided with a clamping groove matched with the filler strip, and the backing plate is also provided with a clamping groove matched with the filler strip.

Furthermore, the backing plate comprises an elastic part, a group of circular grooves are symmetrically formed in the backing plate, a return spring is installed on each circular groove, and a stepped elastic part is installed on each return spring.

Furthermore, two rectangular bulges are symmetrically arranged at the bottom of the inner pushing material, and two rectangular grooves which are aligned with the bulges are symmetrically arranged on the concave-convex die.

Furthermore, an exhaust hole and a stepped discharge hole are formed in the concave-convex die, and a waste hole which is aligned with the exhaust hole and the discharge hole is formed in the lower template.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses improved the bearing structure of punching press piece, be provided with the circular recess on the backing plate, be provided with the elastic component on the circular recess, the circular recess on the backing plate makes things convenient for the installation of elastic component, the circular recess has played the effect of elastic component gliding from top to bottom, it is in unsettled state to push away the material in stamping process, the punching press is accomplished the back product and is attached in the die, make punching press piece card hold tightly on the product, shadow punching press piece's resilience, the elastic component has played the effect that the roof supported, thereby it rises to make the roof drive punching press piece, elastic component help punching press piece is from the product rebound, it holds tightly on the product to have reduced the punching press piece card, influence the phenomenon of the resilience of thimble.

The exhaust structure of concave-convex mould and lower bolster has been improved, be provided with the relief hole of an exhaust hole and a echelonment on concave-convex mould, be provided with the exhaust hole on the lower bolster, the waste hole that the relief hole was just relative, because the speed of punch press is very fast among the production process, can form a negative pressure chamber when the mould separation, the waste hole and the concave-convex mould of lower bolster are linked together, make the replenishment that the air can be rapid enter into the product intermediate position through this structure, reduce the negative pressure, reach the effect of improving the jump bits.

Drawings

Fig. 1 is a schematic view of the main body of the present invention.

Fig. 2 is a schematic view of a partial structure of fig. 1 according to the present invention.

Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present invention.

Fig. 4 is an enlarged schematic structural diagram of fig. 2B according to the present invention.

Fig. 5 is an enlarged schematic structural view of fig. 2C according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. mounting a template; 2. a rubber ring; 3. a filler strip; 4. a top plate; 5. a suspension bolt; 6. a base plate; 601. an elastic member; 7. a thimble; 8. stamping the blocks; 9. pushing materials inwards; 10. a female die; 11. a concave-convex die; 12. and a lower template.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 5:

the utility model provides a scrap jumping prevention mechanism for reducing negative pressure of a punching die, which comprises an upper template 1; the bottom of the upper template 1 is provided with a group of cushion strips 3 with a sleeve structure, and the bottom of the upper template 1 is provided with a top plate 4 and a rubber ring 2; a group of suspension bolts 5 are arranged on the top plate 4, and an inner pushing material 9 is arranged at the bottom of each suspension bolt 5; an annular groove is formed in each of the upper template 1 and the top plate 4, the two annular grooves are aligned, and a rubber ring 2 is arranged between the two annular grooves; a group of stepped holes are formed in the annular groove of the top plate 4, and the suspension bolt 5 is installed on the stepped holes; a base plate 6 in sliding connection is installed at the bottom of the top plate 4, a group of ejector pins 7 are arranged on the top plate 4, and a stamping block 8 is installed at the bottom of the top plate 4; a female die 10 is arranged on the outer side of the inner pushing material 9, a concave-convex die 11 is arranged at the bottom of the inner pushing material 9, and a lower template 12 is arranged at the bottom of the concave-convex die 11.

Wherein, the bottom of cope match-plate pattern 1 has seted up a draw-in groove that agrees with filler strip 3 mutually, and has also seted up a draw-in groove that agrees with filler strip 3 mutually on the backing plate 6, and during the use, the recess on the backing plate 6 has played the effect of filler strip 3 location to make things convenient for the installation of cope match-plate pattern 1.

Wherein, backing plate 6 is including elastic component 601, a set of circular recess has been seted up to the symmetry on backing plate 6, and install a reset spring on the circular recess, the last elastic component 601 of a echelonment of installing of reset spring, in the use, the circular recess on backing plate 6 makes things convenient for the installation of elastic component 601, the circular recess has played the effect of elastic component 601 gliding from top to bottom, push away material 9 and be in unsettled state in stamping process, the product attaches in die 10 after the punching press is accomplished, make punching press piece 8 block hug closely on the product, shadow punching press piece 8's resilience, elastic component 601 has played the effect that roof 4 supported, thereby make roof 4 drive punching press piece 8 rise, elastic component 601 help punching press piece 8 upwards remove from the product, the phenomenon of punching press piece 8 block hugging closely on the product has been reduced, influence the resilience of thimble 7.

When the inner pushing device is used, the rectangular protrusions at the bottom of the inner pushing device 9 play a role in positioning the inner pushing device 9, the displacement of the inner pushing device 9 is reduced, and the rectangular protrusions play a role in facilitating installation of the inner pushing device 9.

Wherein, offer an exhaust hole and a echelonment relief hole on the concave-convex mould 11, offer a waste hole that is just right with exhaust hole, relief hole on the lower bolster 12, during the use, because the speed of punch press is very fast among the production process, can form a negative pressure chamber when the mould separates, the waste hole of lower bolster 12 is linked together with concave-convex mould 11, make the replenishment that the air can be rapid enter into the product intermediate position through this structure, reduce the negative pressure, reach the effect of improving the jump bits.

The specific use mode and function of the embodiment are as follows:

when the punching die is used, firstly, the elastic piece 601 and the reset spring are installed on the groove of the base plate 6, then the top plate 4 is installed above the base plate 6, then the punching piece is placed on the concave-convex die 11, then the punching block 8 is controlled to move downwards to punch a hole on the punching piece, a negative pressure cavity is formed when the dies are separated due to the high speed of the punching machine in the production process, a waste material hole of the lower die plate 12 is communicated with the concave-convex die 11, air can be rapidly supplemented to enter the middle position of a product through the structure to reduce negative pressure, the effect of improving scrap jumping is achieved, waste materials are discharged outwards through the waste material hole on the lower die plate 12, the material needs to be lifted and reloaded after the punching block 8 is punched, the inner pushing material 9 is in a suspended state in the punching process, the product is attached to the concave die 10 after punching is completed, so that the punching block 8 is clamped on the product, and the rebound of the punching block 8 is influenced, elastic component 601 has played the effect that roof 4 supported to make roof 4 drive punching press piece 8 and rise, elastic component 601 help punching press piece 8 from the product rebound, reduced punching press piece 8 card and held tightly on the product, influenced the phenomenon of kick-back of thimble 7.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a cut-out press reduces jumping waste material mechanism of preventing of negative pressure which characterized in that: comprises an upper template (1); a group of cushion strips (3) with a sleeve structure are arranged at the bottom of the upper template (1), and a top plate (4) and a rubber ring (2) are arranged at the bottom of the upper template (1); a group of suspension bolts (5) are mounted on the top plate (4), and an inner pushing material (9) is mounted at the bottom of each suspension bolt (5); the upper template (1) and the top plate (4) are both provided with an annular groove, the two annular grooves are aligned, and a rubber ring (2) is arranged between the two annular grooves; a group of stepped holes are formed in the annular groove of the top plate (4), and the suspension bolts (5) are installed on the stepped holes; a base plate (6) in sliding connection is installed at the bottom of the top plate (4), a group of ejector pins (7) are arranged on the top plate (4), and a stamping block (8) is installed at the bottom of the top plate (4); a concave die (10) is installed on the outer side of the inner pushing material (9), a concave-convex die (11) is installed at the bottom of the inner pushing material (9), and a lower template (12) is installed at the bottom of the concave-convex die (11).

2. The scrap-ejection preventing mechanism for reducing negative pressure of a punching die as set forth in claim 1, wherein: the bottom of the upper template (1) is provided with a clamping groove matched with the filler strip (3), and the backing plate (6) is also provided with a clamping groove matched with the filler strip (3).

3. The scrap-ejection preventing mechanism for reducing negative pressure of a punching die as set forth in claim 1, wherein: the backing plate (6) comprises an elastic part (601), a group of circular grooves are symmetrically formed in the backing plate (6), a return spring is mounted on each circular groove, and a stepped elastic part (601) is mounted on each return spring.

4. The scrap-ejection preventing mechanism for reducing negative pressure of a punching die as set forth in claim 1, wherein: the bottom of the inner pushing material (9) is symmetrically provided with two rectangular bulges, and the concave-convex die (11) is symmetrically provided with two rectangular grooves which are aligned with the bulges.

5. The scrap-ejection preventing mechanism for reducing negative pressure of a punching die as set forth in claim 1, wherein: the concave-convex die (11) is provided with an exhaust hole and a step-shaped discharge hole, and the lower template (12) is provided with a waste hole which is aligned with the exhaust hole and the discharge hole.