CN109940093A - Mold - Google Patents
Mold Download PDFInfo
- Publication number
- CN109940093A CN109940093A CN201711391625.5A CN201711391625A CN109940093A CN 109940093 A CN109940093 A CN 109940093A CN 201711391625 A CN201711391625 A CN 201711391625A CN 109940093 A CN109940093 A CN 109940093A
- Authority
- CN
- China
- Prior art keywords
- mold
- plate
- bolster
- pressure plate
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/10—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws working inwardly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/10—Stamping using yieldable or resilient pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/16—Additional equipment in association with the tools, e.g. for shearing, for trimming
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The present invention relates to a kind of molds, the mold includes movable upper mold and the lower die remaining stationary, the pressure plate (4) for stamped workpieces is provided in the upper mold, the shaping mould (11) for supporting workpiece is provided in the lower die, it is characterized in that, bolster (6) at least are provided in the binder region for compressing the workpiece being located on shaping mould (11) on the pressure plate (4), the bolster is made of polyurethane.
Description
Technical field
The present invention relates to a kind of mold, in particular for the mold of flange.Mold according to the invention is in particular for machine
In the punching press of motor-car outer covering piece.
Background technique
In cold stamping field, flanging process is a kind of more universal technique, almost can be applicable to all stamping products
In.In order to realize flange usually using flanging die in cold stamping.
Known flanging die generally includes upper die and lower die, and lower die includes shaping mould, and pressure plate is arranged in the upper mold,
It is provided with workpiece on shaping mould, on the basis of shaping mould, punching press flange is carried out to workpiece with rigid pressure plate.
Such mold is via known to CN202052866U.In the flanging die of the prior art, the pressure plate of metal
It is directly contacted with workpiece.Since pressure plate itself may have injustice, thus the defect of pressure plate can reflect manufactured production
On product.
A kind of in-flanges mold of generic as known to CN104353730A.Wherein, which has 2 He of cope plate
Lower template 1, punch-pin 14 are connect by unloading bolt with damper 12 and lower template 1.Damper 12 is arranged in punch-pin and lower die
Between plate, for the punch-pin 14 that rebounds when cope plate lifts after the completion of flange.In turn-up process, workpiece is still and metal
Punch-pin directly contacts.
In the prior art, the type face of pressure plate needs to carry out artificial bedding-in after numerically-controlled machine tool is processed, to ensure to press
The gap uniformity of flitch and shaping mould, and matched with workpiece shapes.And especially in the manufacture of motor vehicle outer covering piece,
Need high bedding-in precision.If the bedding-in of pressure plate is unqualified, it is uneven to will lead to the pressure-plate-force that workpiece is subject to, and then cause
Product surface generates defect, this has adverse effect on particularly with the surface quality of exterior panel.In addition, due to using rigidity
Pressure plate, the clast generated in process of production and the dust from external environment are easy to cause impression in product surface again,
Lead to scrap of the product when serious.It can be seen that there are requirement on machining accuracy is high, bedding-in heavy workload, is also easy to produce for current technique
The drawbacks of outer plate surfaces quality problems.In addition, often relying on the experience of worker again to the bedding-in of workpiece, experience deficiency is easy to lead
Cause the generation of waste product.
Summary of the invention
Task of the invention lies in one kind is provided in a manner of very economical, simple can overcome in the prior art lack
Sunken mold.
The present invention realizes the above problem by a kind of mold, and the mold includes movable upper mold and remain stationary
Lower die is provided with the pressure plate for stamped workpieces in the upper mold, is provided in the lower die for supporting workpiece
Shaping mould, which is characterized in that in the pressure plate at least in the binder region for compressing the workpiece being located on shaping mould
It is provided with bolster, the bolster is made of polyurethane.The mold in particular for flange mold.
According to the present invention, polyurethane buffering part is used, which can be with the shape of workpiece due to its flexibility
Shape is adapted.In mold according to the invention, the pressure of pressure plate is transmitted on workpiece by bolster, plays the role of binder
And it is uneven can to make up pressure plate bedding-in simultaneously because bolster has certain deformability for buffer function when binder
Defect caused by even, to will not reflect the defect of pressure plate itself onto the workpiece being extruded.Based on according to the invention
Mold can cancel bedding-in process, so that the development cycle realized low production cost, reduce vehicle, is reduced to bedding-in worker
The dependence of experience reduces the amount of labour, reduces cost of labor, and reduce rejection rate.
Further, since the hardness of the bolster made of polyurethane plate is than the hardness for the pressure plate being typically constructed of metal
Low, clast etc. can be trapped under the effect of the pressure in the lower bolster of hardness, so as to overcome clast to generate on workpiece
Impression problem, this also further improve product quality, it reduce the repair rates of product, at the same decrease production in
Required wiping mould number, to improve production efficiency.
Further, it is adapted based on polyurethane buffering part with the shape of workpiece, in the Development Engineering of mold, according to this
The mold of invention is lower to the level of skill requirement of commissioning staff, this just shortens the die debugging period, reduces mould development
Cost.
Meanwhile mold according to the invention in pressure plate due to being provided with polyurethane buffering part, the polyurethane in binder
Bolster contact workpiece and the pressure-plate-force from pressure plate is applied on workpiece.Since pressure plate is without directly contacting work
Therefore part also reduces the loss in punch forming to pressure plate.Due to the replacement of polyurethane material itself be readily simultaneously
And it is at low cost, then also thus greatly reduce the loss of mold.
Mold according to the invention uses polyurethane to manufacture bolster, polyurethane be easy to get on the market and
And it is cheap, therefore, this is very favorable in terms of cost.Simultaneously polyurethane material have extraordinary compressive property,
Good insulation performance, Corrosion Protection and ageing-resistant performance, and there is alap make an uproar when realizing buffering
Sound, to realize the fool proof reliable operation of mold.
A kind of preferred embodiment according to the invention, the bolster with a thickness of 0.3mm to 1.0mm.Especially
The polyurethane of 0.3mm to the 1.0mm thickness bolster of the invention particularly suitable for manufacture, such polyurethane can be from market
On be easy to get, and clast caused by capable of being absorbed while realizing buffer function.
Advantageously, mold according to the invention covers outside the automobile more demanding to presentation quality in particular for manufacturing
Part mold so as to greatly improve production efficiency, and reduces repair rate.In this regard, mold according to the invention has structure
Simply, the easily manufactured, series of advantages such as binder is stable, maintenance is convenient.
A kind of preferred embodiment according to the invention, the polyurethane buffering part are solid by screw or by bonding
It is scheduled in the pressure plate.In this way, planar polyurethane buffering part can be fixed in a simple manner in existing mold pressure plate,
Then the significant decrease of production efficiency greatly improved with rejection rate is realized in the case where making full use of existing mold.
The polyurethane material of bolster as binder region need to have certain deformability, while need to have certain
Hardness.According to the present invention, the hardness of bolster is greater than shore hardness 80.Based on such bolster material, bolster can
With certain support strength, to will not reflect the defect of pressure plate onto workpiece when squeezing, while change is realized
Shape, to make up the injustice of pressure plate.
The bolster of planar is only provided in partial region in the pressure plate, the bolster has binder area
Domain, in the binder region, bolster has the width of 30mm to 40mm, is protected with being formed to binder region.
A kind of preferred embodiment according to the invention, upper mold is with upper plate and lower die has lower plate, in binder
It is provided with backing plate on plate, upper balance weight is supported on the backing plate, balance weight and the lower balance weight phase on lower plate on this
Cooperation.Wherein, upper balance weight has the recess portion of preferably taper, and lower balance weight is preferably with compatible with the recess portion
Tapered form.Based on this, upper die and lower die can accurately cooperate, to improve the precision of manufactured product.
A kind of further preferred embodiment according to the invention, is provided with the guiding of preferably guide plate on lower plate
Element, the director element are preferably contacted in a manner of reclining with upper plate with the precise match for upper plate and lower plate.By
This, in flange forming process, it is ensured that upper mold is moved relative to lower die with determining running track, to guarantee that pressure plate is accurate
It navigates on workpiece, suitable pressure is applied in the binder region of pressure plate.
A kind of further composition according to the invention, pressure plate are keeping spiral shell by keeping bolt to be maintained in upper plate
The gasket made of polyurethane is provided on bolt.By the polyurethane pad, the impact force in punching course will be absorbed,
It is generated so as to reduce noise, and keeps the operation of mold more steady.
It is according to the invention it is a kind of further constitute, be equipped in pressure plate for the loading component that is located at mold exterior
The upper rod-knocking of connection, the upper rod-knocking are fixed by screws in pressure plate.The upper rod-knocking comes from mold exterior for transmitting
Pressure.
In fact, bolster according to the invention can also be in the similar technique such as enough trimming and piercing dies.
Detailed description of the invention
The present invention is described in more detail by attached drawing below.Wherein:
Fig. 1 shows a kind of sectional view of mold for flange according to the invention.
Specific embodiment
The description present invention that hereinafter reference will be made to the drawings, attached drawing therein show one embodiment of the present of invention.However it should
Understand, the present invention can show in a number of different manners, it is not limited to embodiment as described below；It is true
On, embodiment as described below is intended to keep disclosure of the invention more complete, and absolutely proves this hair to those skilled in the art
Bright protection scope.It is to be further understood that the embodiment invented herein can be combined in various ways, to provide more
Mostly additional embodiment.
It should be understood that in the accompanying drawings, for clarity, the size of certain features can be deformed.
It should be understood that the terminology in specification is only used for description specific embodiment, it is no intended to limit the present invention.
All terms (including technical terms and scientific terms) that specification uses unless otherwise defined, all have those skilled in the art
The normally understood meaning of member.For the sake of concise and/or is clear, well known function or structure can be no longer described in detail.
The terminology "include", "comprise" and " containing " that specification uses indicate there is claimed feature, but do not repel
There are one or more of the other features.
In the description, claim an element to be located at another element "upper" or whens " connected " to another element etc., which can
On another element or to be connected to another element, or may exist intermediary element.
Mold according to the invention is described in detail by example of the mold for flange below.
A kind of mold according to the invention for flange is shown in Fig. 1, the mold includes upper die and lower die.Scheming
In embodiment shown in 1, upper die and lower die cooperate, and are in molding state.
Upper mold includes upper plate 1 and pressure plate 4.Wherein, upper plate 1 carries the other component of upper mold.Pressure plate is being rushed
It is contacted when pressure with the workpiece 10 being supported in the lower die and pressure is applied to workpiece.Pressure plate 4 may remain in the upper bottom
On plate.Upper plate 1 and pressure plate 4 can be made of metal.In the present embodiment, pressure plate 4 is by keeping bolt 9 to be maintained at
In upper plate 1.The region of a such as 30mm-40mm is vacated in pressure plate 4, in the area, pressure plate 4 is by for protecting
The holding bolt 9 for holding pressure plate is connect with upper plate 1.Opening is provided in pressure plate 4, the holding bolt 9 passes through described
It is open and is fixed on upper plate.Gasket 8 is provided on the end of upper plate in holding bolt 9, which is used for
Absorb the impact force in punching course when pressure plate contact workpiece 10.The gasket can be by padded coaming, such as polyurethane
It is made.Upper rod-knocking 7 is equipped in pressure plate 4, the upper rod-knocking can be connected with the loading component for being located at mold exterior, to give
Pressure plate provides pressure.In the present embodiment, upper rod-knocking 7 is fixed by screws in pressure plate.It is provided in upper plate 1
Through-hole.Upper rod-knocking 7 is contacted across the through-hole with the upper air cushion (not shown) of equipment in molding, for providing pressure-plate-force.
The flange insert 5 for carrying out flange to workpiece is fixed on upper plate, which is fixed by screws in upper plate
In.In punching course, which forces workpiece to form turn-up portion.
Lower die includes lower plate 12, and shaping mould 11 is fixed on lower plate 12, and the shaping mould is for example solid by screw
It is scheduled on lower plate, in punch forming, workpiece 10 is supported on shaping mould 11.Lower plate and shaping mould can be by made of metal
At.Director element, such as guide plate 14 are provided on lower plate 12, which plays the guiding role to upper mold in molding.
In addition, the guide plate is fixed in lower plate 12, such as is fixed by screw as found out from Fig. 1.The quantity of guide plate can be
One or more is equipped with 2 pieces of guide plates in the present embodiment in total on lower plate.The guide plate in order to be accurately positioned and with
Upper plate 1 is contacted in a manner of reclining, as can be seen in the figure 1 as.Upper plate 1, lower plate 12 and guide plate 14 form whole
The mould bases of a mold.
In addition, as shown in Figure 1, backing plate 2 being provided in pressure plate 4, is supported with balance on the backing plate
Block 3, balance weight has recess portion on this, and the recess portion is, for example, taper.Backing plate below upper balance weight plays adjusting height
Effect.For the accurate positioning in the fabrication process between pressure plate 4 and shaping mould 11, balance weight and setting are under on this
Lower balance weight 13 on bottom plate 12 cooperates, and the lower balance weight has compatible with the recess portion of upper balance weight, such as taper
Shape.Wherein, in the embodiment according to Fig. 1 of the present invention, upper balance weight 3 and lower balance weight 13 in molding co-operatively
It is bonded together, to play the role of guiding and balance pressure.
In addition, as can be seen from Figure 1, being fixed with planar bolster 6, the face in pressure plate 4 according to the present invention
Shape bolster is arranged in the region that pressure plate is contacted with workpiece.In the present embodiment, the planar bolster setting exists
It turns in edge area.The pressure of pressure plate 4 is transmitted on workpiece 10 by the bolster, and workpiece is compressed and ensures the work
Part no longer moves, while impact force when to binder buffers.
The bolster is the plate being made of polyurethane.Test proves that polyurethane material is particularly suitable for manufacturing this
The bolster of invention.The especially polyurethane of 0.3mm-1.0mm thickness, such polyurethane are cost advantages, and can
It is sufficiently thick for absorbing generated clast while realizing abundant buffer function.
Polyurethane buffering part 6 have binder region, in the binder region bolster with 30mm-40mm width,
The thickness of 0.3mm to 1.0mm fixes the bolster by screw to realize, which further includes it in addition to binder region
Remaining region for fixing, remaining described region gradually thicken from binder region, and the structure in remaining described region
At there is the hole passed through for screw, polyurethane buffering part 6 is fixed in pressure plate 4 by screw.Bolster 6 is closing
Play the role of binder when mould, and have an adverse effect in order not to the surface quality to workpiece, screw not be supported on shaping mould
On workpiece 10 contact.Certainly it is also possible that polyurethane buffering part is fixed in pressure plate also by bonding.In bonding feelings
Under condition, it is only necessary to be provided with the bolster of the planar in binder region.
In the following, turn-up process according to the invention is briefly described.In original state, upper die and lower die are separated.Turn-up process
After beginning, workpiece 10 is placed on shaping mould 11, and lower die remains stationary, and upper mold is moved downward relative to lower die.Meanwhile it being maintained at
Pressure plate in upper mold also moves downward.Firstly, the polyurethane buffering part being arranged in pressure plate is contacted with workpiece.Later, on
The upper plate of mould continues to move down together with the flange module being disposed thereon, and upper plate and and press is gradually exposed in upper rod-knocking 7
The contact of upper air cushion, then start to transmit pressure-plate-force, pressure-plate-force is transmitted on polyurethane buffering part 6 by pressure plate 4.Meanwhile
Due to pressure plate contact workpiece and be kept essentially stationary, keep bolt moved along Open Side Down in pressure plate.?
This, the pressure being applied on workpiece becomes increasing due to pressure effect in upper air cushion, then, work of the bolster in pressure
Gradually tapered up under deformation with balance binder region pressure-plate-force and workpiece pressing 10, while to the not flat surface of pressure plate 4 into
Row compensation.At the same time, flange insert 5 comes into contact with workpiece 10, until being finally completed flange.Hereafter, upper mold moves upwards,
Flange insert 5, bolster 6 gradually leave workpiece 10 and restore original form.
In punching course, metal material of the hardness of bolster 6 made of polyurethane material than the workpiece is made
Softer, in punching course, the clast on workpiece just passes through the absorption of polyurethane buffering part 6, therefore will not stay on workpiece 10
Under by clast generate impression.
Reference signs list
1 upper plate
2 backing plates
Balance weight on 3
4 pressure plates
5 flange inserts
6 bolsters
7 upper rod-knockings
8 gaskets
9 keep bolt
10 workpiece
11 shaping moulds
12 lower plates
13 lower balance weights
14 guide plates.
Claims (12)
1. mold, the mold includes movable upper mold and the lower die remaining stationary, and is provided in the upper mold for rushing
The pressure plate (4) for pressing workpiece, is provided with the shaping mould (11) for supporting workpiece, which is characterized in that in institute in the lower die
It states and is at least provided with bolster (6) in the binder region for compressing the workpiece being located on shaping mould (11) on pressure plate (4),
The bolster is made of polyurethane.
2. mold described in accordance with the claim 1, which is characterized in that be only arranged in partial region on the pressure plate (4)
There is the bolster of planar, the bolster has binder region, and in the binder region, bolster has 30mm to 40mm's
Width.
3. mold according to claim 1 or 2, which is characterized in that the bolster (6) is by screw or is adhesively fixed
On the pressure plate (4).
4. according to mold described in one of claims 1 to 3, which is characterized in that it is hard that the hardness of the bolster (6) is greater than shore
Degree 80.
5. according to mold described in Claims 1-4, which is characterized in that the bolster with a thickness of 0.3mm to 1.0mm.
6. mold described in accordance with the claim 1, which is characterized in that the mold is the mold for flange.
7. mold according to claim 6, which is characterized in that in flange, in turning over edge area described in setting
Bolster.
8. according to mold described in one of claim 1 to 7, which is characterized in that under there is upper mold upper plate (1) and lower die to have
Bottom plate (12) is provided with backing plate (2) on the pressure plate (4), and upper balance weight (3) are supported on the backing plate, puts down on this
Weighing apparatus block is matched with the lower balance weight (13) on lower plate (12).
9. mold according to claim 8, which is characterized in that the upper balance weight (3) has the recess portion of preferred taper, and
The lower balance weight (13) has preferred tapered form compatible with the recess portion.
10. mold according to claim 8, which is characterized in that be provided with leading for preferably guide plate on lower plate (12)
To element (14), the director element is preferably contacted in a manner of reclining with upper plate (1) for upper plate (1) and lower plate
(12) precise match.
11. mold according to claim 8, which is characterized in that pressure plate (4) is by keeping bolt (9) to be maintained at bottom
In plate, the gasket made of polyurethane (8) are provided on keeping bolt (9).
12. according to mold described in one of claim 1 to 11, which is characterized in that on pressure plate (4) be equipped with for be located at
The upper rod-knocking (7) of the loading component connection of mold exterior, the upper rod-knocking are fixed by screws in pressure plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391625.5A CN109940093A (en) | 2017-12-21 | 2017-12-21 | Mold |
| EP18171769.5A EP3501682B1 (en) | 2017-12-21 | 2018-05-11 | Die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391625.5A CN109940093A (en) | 2017-12-21 | 2017-12-21 | Mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109940093A true CN109940093A (en) | 2019-06-28 |
Family
ID=62152418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711391625.5A Pending CN109940093A (en) | 2017-12-21 | 2017-12-21 | Mold |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3501682B1 (en) |
| CN (1) | CN109940093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115488234A (en) * | 2022-08-19 | 2022-12-20 | 瑞鹄汽车模具股份有限公司 | Reduce turn-ups mould mechanism that door handle A face warp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775255B (en) * | 2020-12-24 | 2022-12-06 | 南京京力汽车零部件有限公司 | Blank pressing forming device in stamping and drawing die and using method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047147A (en) * | 1999-08-11 | 2001-02-20 | Mitsui High Tec Inc | Die device |
| CN204194600U (en) * | 2014-11-06 | 2015-03-11 | 上海众达汽车冲压件有限公司 | A kind of flanging forming mould of automobile insert |
| CN106239970A (en) * | 2015-06-03 | 2016-12-21 | 会田工程技术有限公司 | The pressure buffer device of forcing press |
| CN106311894A (en) * | 2015-06-16 | 2017-01-11 | 国立高雄第科技大学 | Forming die with rubber pressure plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4235972A1 (en) * | 1992-10-26 | 1994-04-28 | Pass Anlagenbau Gmbh | Cutting tool for stamping sheets - includes two relatively movable upper and lower parts with punches and associated dies for stamping outer edge and openings of blanked part |
| CN202052866U (en) | 2011-05-11 | 2011-11-30 | 上海众达汽车冲压件有限公司 | Cold-stamping flanging and forming die of automobile taillight support |
| CN202498129U (en) * | 2012-03-22 | 2012-10-24 | 成都槟果科技有限公司 | Simple composite stamping die |
| CN104353730B (en) | 2014-10-27 | 2016-08-24 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of double-deck annular element in-flanges mould and flanging process |
| CN205732472U (en) * | 2016-05-17 | 2016-11-30 | 江苏未来轨道交通装备股份有限公司 | A kind of public bicycle knee sheet metal parts punching die |
-
2017
- 2017-12-21 CN CN201711391625.5A patent/CN109940093A/en active Pending
-
2018
- 2018-05-11 EP EP18171769.5A patent/EP3501682B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047147A (en) * | 1999-08-11 | 2001-02-20 | Mitsui High Tec Inc | Die device |
| CN204194600U (en) * | 2014-11-06 | 2015-03-11 | 上海众达汽车冲压件有限公司 | A kind of flanging forming mould of automobile insert |
| CN106239970A (en) * | 2015-06-03 | 2016-12-21 | 会田工程技术有限公司 | The pressure buffer device of forcing press |
| CN106311894A (en) * | 2015-06-16 | 2017-01-11 | 国立高雄第科技大学 | Forming die with rubber pressure plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115488234A (en) * | 2022-08-19 | 2022-12-20 | 瑞鹄汽车模具股份有限公司 | Reduce turn-ups mould mechanism that door handle A face warp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3501682A1 (en) | 2019-06-26 |
| EP3501682B1 (en) | 2021-01-20 |
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Application publication date: 20190628 |