CN216369742U - Two play blanking moulds of no waste material - Google Patents

Abstract

The utility model discloses a waste-free double-discharging blanking die, which relates to the technical field of die stamping and mainly structurally comprises: the die comprises an upper die and a lower die, wherein the upper die is provided with upper die female die inserts which are arranged in a bilateral symmetry manner, and a single contour line of each die female die insert is symmetrical by taking the middle point of the single contour line as a center; the lower die is provided with a lower die convex die insert matched with the upper die concave die insert. According to the waste-free double-discharging blanking die, two sheets can be obtained by one-time blanking for the sheets arranged in a symmetrical curve, and the blanking efficiency is greatly improved.

Description

Two play blanking moulds of no waste material

Technical Field

The utility model relates to the technical field of die stamping, in particular to a waste-material-free double-discharging blanking die.

Background

The blanking die is a stamping die for blanking a part or a blank on a plate, is widely applied in the field of automobile manufacturing, and is commonly used for manufacturing some large automobile covering parts, such as side wall outer plates, fenders, door inner plates, engine hoods and the like.

With the continuous development of the mold industry, the manufacturing level and the process level are continuously improved, and the production equipment for unwinding and winding the blanking die has the hardware condition of one die for two pieces. With the continuous rising of material price and the continuous improvement of labor cost, the market competition is more intense, the blanking link in the part manufacturing link determines the material cost of parts, for the plates arranged in a symmetrical curve, the traditional mode is one-step, the production efficiency is low, the labor intensity of workers is high, the leftover material loss is very large, the production cost of a part manufacturer is greatly improved, the production efficiency is reduced, and the survival and the development of the part manufacturer in the harsh market competition are not facilitated.

Disclosure of Invention

The utility model aims to provide a waste-free double-discharging blanking die structure, which combines the requirements of automobile manufacturers and the equipment conditions of blanking die unwinding line manufacturers, achieves double discharging of one die through die stock layout and structural improvement, can obtain two workpieces by one-time blanking, improves the blanking efficiency, enables the leftover materials to have zero loss, and saves the raw material cost.

In order to realize the purpose of the utility model, the technical scheme is as follows: the blanking die is characterized in that the upper die is provided with die inserts which are symmetrically arranged left and right, and the centers of single contour lines of the die inserts are symmetrical; the lower die is provided with a male die insert matched with the female die insert. The female die insert and the male die insert are meshed to punch the plate, and the single contour lines of the female die insert and the male die insert are centrosymmetric to ensure that no waste is generated in punching.

Furthermore, a pneumatic material pushing frame is arranged at the narrow opening of the male die insert. The material pushing frame is driven by the air cylinder, so that the plate on the roller of the support bracket can be pushed to separate from the die.

Furthermore, the female die insert and the male die insert which are bilaterally symmetrical in contour line form a group, and one group or more than two groups are arranged on the die.

Furthermore, the mould still includes feeding bracket, support bracket and ejection of compact bracket, its characterized in that, feeding bracket, support bracket and ejection of compact bracket equipartition are put at the lower mould, and feeding bracket, support bracket and ejection of compact bracket surface all install two-way gyro wheel. The part removing die is beneficial to finishing processing.

Furthermore, the feeding bracket, the supporting bracket and the discharging bracket are independent elastic supports, and the supporting plates are consistent in height. When the upper die and the lower die are closed, the feeding bracket, the supporting bracket and the discharging bracket synchronously sink to be lower than the height of the male die insert; when the upper die is separated from the lower die, the feeding bracket, the supporting bracket and the discharging bracket are raised to be higher than the male die insert.

Furthermore, the rollers arranged on the feeding bracket and the discharging bracket are bidirectional rollers, and the rollers arranged on the supporting bracket are universal wheels. The plates moving out in the same direction move out through the bidirectional roller of the discharging bracket; the plates moving out in different directions move out through the universal idler wheels of the support brackets.

Furthermore, a pneumatic pre-guide plate is arranged at the wide opening of the male die insert. When the flat plate material of the decoiling line enters the die, the cylinder drives the pre-guide plate to be higher than the brackets, so that the plate material is prevented from sliding on each bracket of the lower die to generate the deviation of the moving position. When the flat plate material of the decoiling line is separated, the cylinder drives the pre-guide plate to sink to be lower than the support bracket before the plate material needs to be laterally discharged.

Furthermore, feeding bracket, support bracket and ejection of compact bracket equipartition are put at the lower mould, and are independent elastic support, support the highly unanimous of sheet material.

Further, a pressure plate is arranged between the die inserts. Before the female die insert is cut into the male die insert, the pressure plate presses the flat plate, so that the plate is flat and is beneficial to blanking.

The utility model has the beneficial effects that:

the utility model relates to a waste-free double-discharging blanking die structure which is used for plates with relatively special shapes, such as fender parts; the blanking member plates are symmetrically arranged in shape, the width of the blanking member plates after contour splicing is close to that of the uncoiled line plates, the male die insert and the female die insert are arranged according to the curve shape, waste-free blanking is achieved, one-die two-piece blanking can be improved by one time compared with one-die one-piece blanking efficiency, the waste-free blanking enables the material utilization rate to be maximized, and the material cost is saved.

The blanking die is provided with the double outlets, parts in the same direction can be discharged from the same outlets, redundant manpower is not consumed to arrange the parts in order, the parts are convenient to store and transport, the labor cost is saved, and the efficiency is improved.

Drawings

FIG. 1 is a schematic plan view of a single outlet lower die of the present invention;

FIG. 2 is a schematic view of a single outlet workflow of the present invention

FIG. 3 is a schematic plan view of a dual outlet lower die of the present invention;

FIG. 4 is a schematic flow chart of the dual outlet operation of the present invention;

FIG. 5 is a schematic view of the flat decoiling line entering the lower die to be blanked according to the present invention;

FIG. 6 is a schematic view of the flat cut-off line of the present invention with the plate detached from the lower die;

FIG. 7 is a cross-sectional view of the blanking die of the present invention taken along the direction of movement of the flat sheet;

fig. 8 is a cross-sectional view of the blanking die of the present invention taken along the direction of the pusher of the pneumatic pusher.

Reference numbers and corresponding part names in the drawings:

the device comprises an upper die, a lower die, a cutting line flat material, a feeding bracket, a supporting bracket, a discharging bracket, a male die insert, a female die insert, a pressing plate, a universal roller, a bidirectional roller, a side guide part 12, a pneumatic pre-guide plate 13, a pneumatic material pushing frame 14 and a belt pulley 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The first embodiment is as follows:

as shown in fig. 1 and 2, the utility model provides a scrap-free double-discharging blanking die structure, which comprises an upper die 1 and a lower die 2, wherein the upper die 1 is provided with die inserts 8 which are symmetrically arranged left and right, and the centers of the single contour lines of the die inserts 8 are symmetrical; the lower die 2 is provided with a male die insert 7 matched with the female die insert 8; the lower die 2 is provided with a feeding bracket 4, a supporting bracket 5 and a discharging bracket 6, the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 are all arranged on the lower die 2 and are independently and elastically supported, the supporting plates are consistent in height, and the surfaces of the supporting plates are all provided with bidirectional rollers 11; side guide parts 12 are arranged on two sides of a plate material feeding port of the lower die 2, so that the plate material can slide into the die conveniently.

When the device is used, the upper die 1 of the blanking die is lifted by the press and separated from the lower die 2, the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 are all bounced to exceed the male die insert 7 at the same height, the uncoiling line flat plate 3 slides in from the feeding bracket 5 at the feeding end of the die and is conveyed to a specified position through the supporting bracket 5 and the discharging bracket 6 under the action of the bidirectional roller 11 and the side guide part 12. Then, an upper die 1 of the blanking die is driven by a press to fall, when the upper die and the lower die are closed, a material supporting frame is pressed down to be lower than a male die insert 7, a plate 3 falls on the surface of the male die insert 7, a material pressing plate 9 presses the plate 3 in advance, and then a cutting edge of a female die insert 8 cuts into the cutting edge of the male die insert 7 to separate the plate 3; when the upper die 1 is lifted by the press, the elastic elements below the bracket respectively jack up the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 to be higher than the male die insert 7 at the same height, and separated plates are placed on the bidirectional roller 11 of the discharging bracket 6 and are sent out of the die.

After the blanking plate is moved out of the die, the decoiling line flat plate 3 continues to push the flat plate to slide into the specified position of the die according to the step pitch. The upper die 1 of the blanking die is driven by a press to fall, when the blanking die is closed with the lower die 2, two concave die inserts 6 which are arranged in a symmetrical curve cut into two convex die inserts 7 which are arranged in a symmetrical curve, and then the flat plate 3 is cut into two separated plates. As the die is closed and opened, the sheet continues to be blanked apart and removed from the die.

Example two:

as shown in fig. 3 to 8, the utility model provides a scrap-free double-discharging blanking die structure, which comprises an upper die 1 and a lower die 2, wherein the upper die 1 is provided with die inserts 8 which are arranged in a left-right symmetrical manner, and a single contour line of each die insert 8 takes a middle point thereof as a symmetrical point which is symmetrical with respect to the center; the lower die 2 is provided with a male die insert 7 matched with the female die insert 8; a pneumatic pre-guide plate is arranged at the wide opening of the male die insert 7, and a pneumatic material pushing frame is arranged at the narrow opening of the male die insert 7; the lower die 2 is provided with a feeding bracket 4, a supporting bracket 5 and a discharging bracket 6, the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 are all arranged on the lower die 2 and are independently and elastically supported, and the supporting plates are consistent in height; the rollers arranged on the feeding bracket and the discharging bracket are double wheels, and the rollers arranged on the supporting bracket are universal wheels.

The upper die 1 of the blanking die is lifted by a press, when the upper die is separated from the lower die 2, the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 are all bounced by the same height to exceed the male die insert 7, the decoiling line flat plate 3 slides in from the feeding bracket 5 bidirectional roller 11 at the feeding end of the die, passes through the supporting bracket 5 universal roller 8 and then slides through the discharging bracket 6 bidirectional roller 9, and then the blanking die stops; when the plate material enters the lower die to slide, side guide parts 12 and a pneumatic pre-guide plate 13 are arranged on two sides of the plate material of the lower die to guide. The pneumatic pre-guide plate 13 is arranged at the position of the plate material on the side of the support bracket 5.

An upper die 1 of the blanking die is driven by a press to fall, when the upper die and a lower die 2 are closed, a material supporting frame is pressed down to be lower than a male die insert 7, a plate 3 falls on the surface of the male die insert 7, a material pressing plate 9 presses the plate 3 in advance, and then a cutting edge of a female die insert 8 cuts into the cutting edge of the male die insert 7 to separate the plate 3; when the upper die 1 is lifted by a press, elastic elements below the bracket respectively jack up the feeding bracket 4, the supporting bracket 5 and the discharging bracket 6 at the same height and are higher than the male die insert 7, the discharging bracket 6 of the die is provided with a bidirectional roller 11, and a separated plate is placed on the bidirectional roller 11 of the discharging bracket 6 and is moved away by a belt pulley on the outer side of the discharging bracket 6 of the die; the other separated sheet falls on the universal rollers 10 of the support bracket 5, and at this time, the pneumatic pre-guide plate 13 is controlled by the air cylinder to sink to be lower than the support bracket 5. A pneumatic material pushing frame 14 arranged on the other side corresponding to the support bracket 5 is driven by an air cylinder to push the blanked sheet material out of the die along the direction which is 90 degrees with the sheet material 3 in a sliding way, and is moved away by a belt pulley on the rear side of the die; the two-way rollers 11 of the die feed carriage 4 now continue to hold the flat unwound wire 3 supplied by the stamping apparatus.

After the blanking plate is moved out of the die, the decoiling line flat plate 3 continues to push the flat plate to slide into the specified position of the die according to the step pitch. The upper die 1 of the blanking die is driven by a press to fall, when the blanking die is closed with the lower die 2, two concave die inserts 6 which are arranged in a symmetrical curve cut into two convex die inserts 5 which are arranged in a symmetrical curve, and then the decoiling line flat material 3 is cut into two separated plates. With the die closed and opened, the sheet continues to be blanked and separated out of the die and is discharged along the belt pulley 15 in both discharge directions.

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 (9)

1. The double-discharging blanking die without the waste comprises an upper die (1) and a lower die (2), and is characterized in that the upper die (1) is provided with die inserts (8) which are arranged in a bilateral symmetry manner, and the centers of single contour lines of the die inserts (8) are symmetrical; the lower die (2) is provided with a convex die insert (7) matched with the concave die insert (8).

2. The blanking die for the double-discharging piece without waste material as in claim 1, characterized in that a pneumatic pushing frame (14) is arranged at the narrow opening of the punch insert (7).

3. The blanking die without the waste double-discharging part as set forth in claim 1, wherein the die insert (8) and the punch insert (7) with the two symmetrical contour lines are in one group, and one group or more than two groups are arranged on the die.

4. The waste-free double-discharging blanking die as recited in claim 1, further comprising an feeding bracket (4), a supporting bracket (5) and a discharging bracket (6), wherein the surfaces of the feeding bracket (4), the supporting bracket (5) and the discharging bracket (6) are all provided with bidirectional rollers (11).

5. The waste-free double-discharging blanking die as claimed in claim 4, wherein the feeding bracket (4), the supporting bracket (5) and the discharging bracket (6) are all arranged on the lower die (2) and are independently and elastically supported, and the supporting plates are uniform in height.

6. The waste-free double-discharging blanking die as claimed in any one of claims 2 or 3, further comprising an inlet bracket (4), a support bracket (5) and an outlet bracket (6), wherein the rollers mounted on the inlet bracket (4) and the outlet bracket (6) are bidirectional rollers (11), and the rollers mounted on the support bracket (5) are universal wheels (10).

7. The blanking die for the double-discharging piece without the waste material as in claim 6, characterized in that the wide opening of the punch insert (7) is provided with a pneumatic pre-guiding plate (13).

8. The waste-free double-discharging blanking die as claimed in claim 6, wherein the feeding bracket (4), the supporting bracket (5) and the discharging bracket (6) are all arranged on the lower die (2) and are independently and elastically supported, and the supporting plates are uniform in height.

9. A die for the blanking of two double-outlet parts without waste material according to any of the claims 1-3, characterized in that a pressure plate (9) is arranged between the die inserts (8).

Images