CN112935095B

CN112935095B - Multi-section automatic die for cutting and rolling stainless steel section in one step and stamping method

Info

Publication number: CN112935095B
Application number: CN202110151121.6A
Authority: CN
Inventors: 屠世顺; 蔡军杰
Original assignee: Xingsan Xingyun Technology Co Ltd
Current assignee: Xingsanxing Cloud Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2023-04-18
Anticipated expiration: 2041-02-03
Also published as: CN112935095A

Abstract

The invention belongs to the technical field of stamping, and particularly relates to a multi-section automatic die for cutting and rolling stainless steel sections in one step and a stamping method. The invention provides a multi-section automatic die and a stamping method for one-step cutting and rolling of a stainless steel section, aiming at the problem that mutual interference occurs in a stamping structure in the prior art and the risk of quality defects of a stamped product is caused. The two-section type stamping device can utilize the first stripper plate and the second stripper plate to stamp the section bar in two sections, so that the problem of mutual interference caused by the fact that stamping structures need to be arranged too densely is avoided, and the quality of stamped products is improved.

Description

Multi-section automatic die for cutting and rolling stainless steel section in one step and stamping method

Technical Field

The invention belongs to the technical field of stamping, and particularly relates to a multi-section automatic die for cutting and rolling stainless steel sections in one step and a stamping method.

Background

Stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece of a desired shape and size. In the prior art, during stamping, the stamping structure is almost pressed on the surface of the section bar at the same time, and all stamping actions are synchronously completed, so that the two to-be-stamped sites with a short distance on the surface of the section bar are interfered with each other during stamping, and the quality defect risk of the stamped section bar is caused.

For example, the chinese utility model patent discloses a sheet metal punching press shearing automation equipment [ application number: 201920710417.5], the utility model discloses an inlay in punching press bed die upper surface axle center position has the copper dish, the inboard welding of the inboard punching press bed die of copper dish has the inner disc, the knife rest has been cup jointed in the space between inner disc and the copper dish, the screw rod has been cup jointed to the knife rest lower surface, the even welding in punching press bed die upper surface both sides has ten second pillars, the roof-rack has been cup jointed to the second pillar periphery, there is the punching press top die in the roof-rack lower surface periphery through four fixing bolt fixed mounting.

The utility model discloses a have the consumption that has reduced the energy, strengthen the advantage of result of use, but it still does not solve above-mentioned problem.

Disclosure of Invention

The invention aims to solve the problems and provides a multi-section automatic die for cutting and rolling stainless steel sections in one step with good product quality.

Another object of the present invention is to provide a stamping method with good product quality.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a multistage formula automatic mould that stainless steel section bar one step was cut off and is rolled shape, is including relative cope match-plate pattern and the lower bolster that sets up, be equipped with the extrusion space on the lower bolster, be equipped with the extrusion structure on the cope match-plate pattern, remove the cope match-plate pattern and can make the extrusion structure extend to in the extrusion space, still be equipped with first stripper and second stripper between cope match-plate pattern and the lower bolster, first stripper lower surface is more close to the lower bolster than second stripper lower surface.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, a first elastic piece is arranged between the first stripper plate and the upper die plate, the first stripper plate is elastically connected with the upper die plate through the first elastic piece, one end of the first elastic piece is fixedly connected to the upper die plate, and the other end of the first elastic piece is pressed on the first stripper plate to form a first gap between the upper die plate and the first stripper plate.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, a second elastic part is arranged between the second stripper plate and the upper die plate, the second stripper plate is elastically connected with the upper die plate through the second elastic part, one end of the second elastic part is fixedly connected to the upper die plate, and the other end of the second elastic part is pressed on the second stripper plate to form a second gap between the upper die plate and the second stripper plate.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, the first elastic part and the second elastic part both comprise nitrogen springs.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, the two sides of the extrusion space are symmetrically provided with the guide sliding baffle plates, one end of each guide sliding baffle plate is connected with the limit baffle plate extending towards the other guide sliding baffle plate, the limit baffle plates are positioned above the extrusion space, an extrusion channel is arranged between the two limit baffle plates, and the extrusion structure extends into the extrusion space through the extrusion channel.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, the extrusion space comprises a main space and a deformation positioning space which are communicated with each other, and the deformation positioning space is sunken into the lower die plate.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, the extrusion structure comprises a forming bag insert fixedly connected to the second stripper plate, the forming bag insert is matched with the deformation positioning space, the extrusion structure further comprises an extrusion needle, one end of the extrusion needle is connected to the upper die plate, the other end of the extrusion needle penetrates through the second stripper plate, and the axial lead of the extrusion needle coincides with the axial lead of the forming bag insert.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, a positioning plate is arranged on one side of the main space, which is far away from the first stripper plate, a cutting knife rest is arranged on one side of the main space, which is close to the first stripper plate, and the positioning plate and the cutting knife rest are both fixedly connected with the lower die plate.

In the multi-section automatic die for one-step cutting and rolling of the stainless steel section, a guide inclined plane is arranged on one side of the deformation positioning space close to the positioning plate, one end of the guide inclined plane is communicated with the bottom surface of the deformation positioning space, and the other end of the guide inclined plane is communicated with the bottom surface of the main space.

A method of stamping comprising the steps of:

the method comprises the following steps: conveying the section to the position below a first stripper plate, moving an upper template downwards, and punching for the first time by using the first stripper plate;

step two: the section is continuously conveyed along the guide sliding baffle and abutted to the positioning plate, and the circular hole formed by punching for the first time in the first step is used for positioning;

step three: the upper die plate moves downwards, the first stripper plate is firstly pressed on the section bar, and the first punching is carried out on the second section of section bar;

step four: continuously moving the upper template downwards to enable the second discharging plate to be pressed on the first section of section bar, punching for the second time, forming a groove on the first section of section bar by matching the forming package insert with the deformation positioning space, forming a punching hole on the groove by the extrusion needle, and cutting off the tool rest to enable the first section of section bar and the second section of section bar to be separated from each other;

step five: the upper die plate moves upwards, and a second gap is recovered between the second stripper plate and the upper die plate under the action of the second elastic piece, so that the end part of the extrusion needle is separated from the first section of the section bar;

step six: pushing the second section of section bar to indirectly push the first section of section bar, wherein the first section of section bar slides out of the extrusion space under the action of the guide inclined plane, and the second section of section bar replaces the first section of section bar and enters the extrusion space;

step seven: and repeating the operations from the second step to the sixth step to realize continuous production.

Compared with the prior art, the invention has the advantages that:

1. the first stripper plate and the second stripper plate are arranged at different distances from the lower template, the first stripper plate and the second stripper plate can be used for carrying out two-section type stamping on the section bar, the problem of mutual interference caused by the fact that stamping structures need to be arranged too densely is avoided, and the quality of stamping products is improved.

2. The stamping method provided by the invention is simple to operate, safe and stable, and suitable for large-scale popularization and application.

Drawings

FIG. 1 is a front view of the present invention prior to stamping;

FIG. 2 is a front view of the invention as stamped;

FIG. 3 is a top view of the lower platen;

FIG. 4 is a right side view of the present invention;

in the figure: the device comprises an upper template 100, an extrusion structure 101, a molding package insert 102, an extrusion needle 103, a lower template 200, an extrusion space 201, a guide slide baffle 202, a limit baffle 203, an extrusion channel 204, a main space 205, a deformation positioning space 206, a positioning plate 207, a cutting tool rest 208, a guide inclined surface 209, a first stripper plate 300, a second stripper plate 400, a first elastic member 500, a first gap 600, a second elastic member 700 and a second gap 800.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

Example 1

The embodiment provides a multistage formula automatic mould that stainless steel section bar one-step cut off rolled shape, combine fig. 1 and fig. 2 to show, including relative cope match-plate pattern 100 and the lower bolster 200 that sets up, be equipped with extrusion space 201 on the lower bolster 200, be equipped with extrusion structure 101 on the cope match-plate pattern 100, remove cope match-plate pattern 100 and can make extrusion structure 101 extend to extrusion space 201 in, still be equipped with first stripper 300 and second stripper 400 between cope match-plate pattern 100 and the lower bolster 200, first stripper 300 lower surface is closer to lower bolster 200 than second stripper 400 lower surface.

When the punching die is used, the section 1100 is conveyed to the position below the first stripper plate 300, the upper die plate 100 moves downwards, and the first stripper plate 300 is utilized for punching for the first time; the profile 1100 is moved to the position below the second stripper plate 400, and secondary punching is carried out, the first stripper plate 300 and the second stripper plate 400 are different in distance from the lower die plate 200, the profile 1100 can be subjected to two-section type punching by the aid of the first stripper plate 300 and the second stripper plate 400, the problem of mutual interference caused by the fact that a punching structure needs to be arranged too densely is avoided, meanwhile, punching holes formed by primary punching can assist in secondary punching to carry out accurate positioning, and accordingly quality of punched products is greatly improved.

Referring to fig. 1 and 2, a first elastic member 500 is disposed between the first stripper plate 300 and the upper die plate 100, the first stripper plate 300 is elastically connected to the upper die plate 100 through the first elastic member 500, one end of the first elastic member 500 is fixedly connected to the upper die plate 100, and the other end of the first elastic member 500 is pressed on the first stripper plate 300, so that a first gap 600 is formed between the upper die plate 100 and the first stripper plate 300. A second elastic member 700 is arranged between the second stripper plate 400 and the upper die plate 100, the second stripper plate 400 is elastically connected with the upper die plate 100 through the second elastic member 700, one end of the second elastic member 700 is fixedly connected to the upper die plate 100, and the other end of the second elastic member 700 is pressed on the second stripper plate 400, so that a second gap 800 is formed between the upper die plate 100 and the second stripper plate 400. The first and

second gaps

600 and 800 are conveniently maintained by the elastic force provided by the first and second

elastic members

500 and 700 when not punched.

Preferably, the first and second

elastic members

500 and 700 each include a nitrogen spring. The nitrogen spring is a novel elastic component using high-pressure nitrogen as a working medium, has small volume, large elasticity, long stroke, stable work, precise manufacture, long service life, gentle elasticity curve, no need of pre-tightening and the like, has the work which is difficult to finish by conventional elastic components such as metal springs, rubber, air cushions and the like, simplifies the design and manufacture of the die, facilitates the installation and adjustment of the die, prolongs the service life of the die, ensures the stability of the product quality, can also be designed into a nitrogen spring system to participate in the work as a part of the die, can conveniently realize the constant pressure and delayed action in the system, and is a new generation of optimal elastic component with flexible performance.

As shown in fig. 3 and 4, the two sides of the extrusion space 201 are symmetrically provided with the slide guide baffles 202, one end of each slide guide baffle 202 is connected to a limit baffle 203 extending towards the other slide guide baffle 202, the limit baffle 203 is located above the extrusion space 201, an extrusion channel 204 is arranged between the two limit baffles 203, and the extrusion structure 101 extends into the extrusion space 201 through the extrusion channel 204. The sliding guide baffle 202 and the limiting baffle 203 are matched with each other, so that the section 1100 can slide in the extrusion space 201 without being separated. After the section 1100 is punched by the second stripper plate 400, the section 1100 is bent, so that the overall width of the section 1100 is reduced, and the width of the punched section 1100 is smaller than the distance between the two limit baffles 203.

As shown in fig. 1 and 4, the extrusion space 201 includes a main space 205 and a deformation positioning space 206 that are communicated with each other, and the deformation positioning space 206 is recessed toward the inside of the lower mold plate 200. The extrusion structure 101 comprises a molding package insert 102 fixedly connected to the second stripper plate 400, the molding package insert 102 is matched with the deformation positioning space 206, the extrusion structure 101 further comprises an extrusion needle 103, one end of the extrusion needle is connected to the upper template 100, the other end of the extrusion needle 103 penetrates through the second stripper plate 400, and the axis of the extrusion needle 103 is coincident with the axis of the molding package insert 102.

As shown in fig. 1, a positioning plate 207 is disposed on a side of the main space 205 away from the first stripper plate 300, a cutting blade holder 208 is disposed on a side of the main space adjacent to the first stripper plate 300, and both the positioning plate 207 and the cutting blade holder 208 are fixedly connected to the lower template 200. The positioning plate 207 can prevent the profile 1100 from sliding out of the main space 205 too much, resulting in failure to punch.

Preferably, a guide inclined plane 209 is disposed at a side of the deformation positioning space 206 close to the positioning plate 207, and one end of the guide inclined plane 209 is communicated with the bottom surface of the deformation positioning space 206, and the other end is communicated with the bottom surface of the main space 205. After the stamping is completed, an inclined surface which is attached to the guiding inclined surface 209 is formed on the profile 1100, so that when the profile 1100 is pushed, the stamped profile can be separated out of the extrusion space 201 under the guiding action of the inclined surface.

The working principle of the invention is as follows: conveying the section 1100 to the lower part of the first stripper plate 300, moving the upper template 100 downwards, and performing first punching by using the first stripper plate 300; the section 1100 is continuously conveyed along the slide guiding baffle 202 and is abutted against the positioning plate 207, and the circular hole formed by the first punching in the first step is used for positioning; the upper template 100 moves downwards, the first stripper plate 300 is firstly pressed on the section 1100, and a first punching is carried out on a second section of section; continuously moving the upper template 100 downwards to enable the second stripper plate 400 to be pressed on the first section of the section, performing secondary punching, forming a groove on the first section of the section by matching the forming package insert 102 with the deformation positioning space 206, forming a punching hole on the groove by the extrusion needle 103, and cutting off the tool rest 208 to enable the first section of the section and the second section of the section to be separated from each other; the upper die plate 100 moves upwards, and a second gap 800 is restored between the second stripper plate 400 and the upper die plate 100 under the action of the second elastic piece 700, so that the end part of the extrusion needle 103 is separated from the first section of the profile; pushing the second section of profile to indirectly push the first section of profile, wherein the first section of profile slides out of the extrusion space 201 under the action of the guide inclined plane 209, and the second section of profile enters the extrusion space 201 instead of the first section of profile; the above steps are repeated to achieve continuous production. Therefore, the punching die has the first stripper plate 300 and the second stripper plate 400 which have different distances from the lower template 200, the first stripper plate 300 and the second stripper plate 400 can be used for carrying out two-section type punching on the section 1100, the problem of mutual interference caused by the fact that a punching structure needs to be arranged too densely is avoided, meanwhile, punching holes formed by the first punching can also assist in carrying out accurate positioning during the second punching, and the quality of punched products is greatly improved.

Example 2

The embodiment provides a stamping method realized by a multi-section automatic die for one-step cutting and rolling of a stainless steel section described in embodiment 1, which comprises the following steps:

the method comprises the following steps: conveying the section 1100 to the lower part of the first stripper plate 300, moving the upper template 100 downwards, and punching for the first time by using the first stripper plate 300;

step two: the section 1100 is continuously conveyed along the slide guide baffle 202 and abutted against the positioning plate 207, and is positioned by using a circular hole formed by first punching in the first step;

step three: the upper template 100 moves downwards, the first stripper plate 300 is firstly pressed on the section 1100, and a first punching is carried out on a second section of the section;

step four: continuously moving the upper template 100 downwards to enable the second stripper plate 400 to be pressed on the first section of the section, performing secondary punching, forming a groove on the first section of the section by matching the forming package insert 102 with the deformation positioning space 206, forming a punching hole on the groove by the extrusion needle 103, and cutting off the tool rest 208 to enable the first section of the section and the second section of the section to be separated from each other;

step five: the upper die plate 100 moves upwards, and a second gap 800 is restored between the second stripper plate 400 and the upper die plate 100 under the action of the second elastic piece 700, so that the end part of the extrusion needle 103 is separated from the first section of the section bar;

step six: pushing the second section of profile to indirectly push the first section of profile, wherein the first section of profile slides out of the extrusion space 201 under the action of the guide inclined plane 209, and the second section of profile enters the extrusion space 201 instead of the first section of profile;

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms of the upper plate 100, the pressing structure 101, the insert 102, the pressing pin 103, the lower plate 200, the pressing space 201, the slide guide 202, the limit stop 203, the pressing channel 204, the main space 205, the deformation-positioning space 206, the positioning plate 207, the cutting blade holder 208, the guide slope 209, the first stripper plate 300, the second stripper plate 400, the first elastic member 500, the first gap 600, the second elastic member 700, the second gap 800, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a multi-section automatic mould of stainless steel section bar one-step cutting off rolling shape, is including relative cope match-plate pattern (100) and lower bolster (200) that set up, be equipped with extrusion space (201) on lower bolster (200), be equipped with extrusion structure (101) on cope match-plate pattern (100), remove cope match-plate pattern (100) and can make extrusion structure (101) extend to in extrusion space (201), its characterized in that: a first stripper plate (300) and a second stripper plate (400) are further arranged between the upper template (100) and the lower template (200), and the lower surface of the first stripper plate (300) is closer to the lower template (200) than the lower surface of the second stripper plate (400).

2. The multi-sectional type automatic mold for one-step cutting and rolling of stainless steel profile according to claim 1, wherein: a first elastic piece (500) is arranged between the first discharging plate (300) and the upper die plate (100), the first discharging plate (300) is elastically connected with the upper die plate (100) through the first elastic piece (500), one end of the first elastic piece (500) is fixedly connected to the upper die plate (100), and the other end of the first elastic piece is pressed on the first discharging plate (300) to enable a first gap (600) to be formed between the upper die plate (100) and the first discharging plate (300).

3. The multi-sectional type automatic mold for one-step cutting and rolling of stainless steel profile according to claim 2, wherein: a second elastic piece (700) is arranged between the second stripper plate (400) and the upper die plate (100), the second stripper plate (400) is elastically connected with the upper die plate (100) through the second elastic piece (700), one end of the second elastic piece (700) is fixedly connected to the upper die plate (100), and the other end of the second elastic piece is pressed on the second stripper plate (400) to form a second gap (800) between the upper die plate (100) and the second stripper plate (400).

4. The multi-sectional type automatic die for one-step cutting and rolling of stainless steel sectional material according to claim 3, wherein: the first elastic member (500) and the second elastic member (700) each include a nitrogen spring.

5. The multi-sectional type automatic mold for one-step cutting and rolling of stainless steel profile according to claim 1, wherein: extrusion space (201) bilateral symmetry is provided with leads smooth baffle (202), lead smooth baffle (202) one end and be connected with to lead limit baffle (203) that smooth baffle (202) direction extended to another piece, limit baffle (203) are located extrusion space (201) top, have extrusion passageway (204) between two limit baffle (203), extrusion structure (101) extend to in extrusion space (201) through extrusion passageway (204).

6. The multi-sectional type automatic die for one-step cutting and rolling of stainless steel sectional material according to claim 1, wherein: the extrusion space (201) comprises a main space (205) and a deformation positioning space (206) which are communicated with each other, and the deformation positioning space (206) is sunken towards the interior of the lower template (200).

7. The multi-sectional type automatic mold for one-step cutting and rolling of stainless steel profile according to claim 6, wherein: the extrusion structure (101) comprises a molding package insert (102) fixedly connected to the second discharging plate (400), the molding package insert (102) is matched with the deformation positioning space (206), the extrusion structure (101) further comprises an extrusion needle (103) with one end connected to the upper template (100) and the other end penetrating through the second discharging plate (400), and the axial lead of the extrusion needle (103) is overlapped with the axial lead of the molding package insert (102).

8. The multi-sectional type automatic mold for one-step cutting and rolling of stainless steel profile according to claim 6, wherein: one side of the main space (205) far away from the first stripper plate (300) is provided with a positioning plate (207), one side close to the first stripper plate (300) is provided with a cutting tool rest (208), and the positioning plate (207) and the cutting tool rest (208) are fixedly connected with the lower template (200).

9. The multi-sectional type automatic die for one-step cutting and rolling of stainless steel sectional material according to claim 8, wherein: one side of the deformation positioning space (206) close to the positioning plate (207) is provided with a guide inclined plane (209), one end of the guide inclined plane (209) is communicated with the bottom surface of the deformation positioning space (206), and the other end of the guide inclined plane is communicated with the bottom surface of the main space (205).