CN104858334B - Waste material automatic discharge device and discharge method - Google Patents
Waste material automatic discharge device and discharge method Download PDFInfo
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- CN104858334B CN104858334B CN201410641199.6A CN201410641199A CN104858334B CN 104858334 B CN104858334 B CN 104858334B CN 201410641199 A CN201410641199 A CN 201410641199A CN 104858334 B CN104858334 B CN 104858334B
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Abstract
The present invention relates to a kind of waste material automatic discharge device and discharge method, including upper die repair side insert and lower mould insert group, the upper die repair side insert includes upper flat plate and upper mould waste knife, the lower mould insert group includes lower die repair side insert and lower mould waste knife, and the upper mould waste material edge is engaged for cutting waste material with the lower mould waste material edge, the angle that the upper mould waste material edge is formed with the angle of upper flat plate cutting edge formation and the lower mould waste material edge with the lower die repair side insert cutting edge is in obtuse angle.Waste material automatic discharge device and discharge method of the present invention, solve waste material edge it is relative when the problem that glides of waste material, and fabricate easy, reduce technical staff and the probability of safety problem occur in debugging, improve production efficiency.
Description
Technical field
The present invention relates to a kind of diel, refer in particular to trimming die waste material edge it is relative when waste material be automatically drained out filling
Put and discharge method.
Background technology
In recent years as high-tech development and the popularization and application of emerging technology, die industry are developed rapidly, especially
It is that diel has reached unprecedented level, and various novel punching techniques emerge in an endless stream with novel die structure.But
In existing ripper die punching course, for Trimming Die waste material edge it is relative when can get stuck problem or waste material glide
The problems such as not smooth, is so as to can cause the reduction of punch process production efficiency, in order to overcome above mentioned problem, generally in workshop configuring technical
Personnel on site debugs, and during debugging at the scene, not only to do substantial amounts of experiment repeatedly, waste time and energy, or even according to debugging
Result also need to readjust the structure of mould sometimes, not only increase cost, and fabricate difficult；Furthermore due to existing
Having that diel equipment is big, staff, there is also many potential safety hazards, does not utilize safety in production in debugging process, therefore,
Existing method can not meet the needs of mould production, can not more meet that modern production especially automates the mould life of line
The needs of production.
In order to overcome disadvantages mentioned above, Chinese patent literature (CN101367106A) discloses a kind of body outer skin stamping die
Tool excludes waste material structure, and described mould includes upper mould deburring cutter block, lower mould deburring cutter block and waste sliding plate, by described upper
Mould deburring cutter block and lower mould deburring cutter block, to the profile of Auto-body Panel cut finishing, described upper mould deburring cutter block with
On the edge of a knife face of product waste material contact, if strong magnets.Above-mentioned technical proposal is used, is removed although realizing using diel
Waste material, reduce waste material cleaning machine machining time, shorten the manufacturing cycle and reduce processing cost, but still exist with
Lower problem：While waste material is magnetized also deburring cutter block and product can magnetize the strong magnets, in punching course, institute
State product can equally adsorb in deburring cutter block and can not smooth blanking, so as to influence production efficiency；If magnet magnetic force is not simultaneously
Foot, the product waste material also can not be discharged smoothly.
The content of the invention
Therefore, the technical problems to be solved by the invention be to overcome waste material described in prior art can not smoothly discharge from
And the problem of causing punch process production efficiency to reduce, there is provided a kind of waste material discharges one kind that is smooth while can reducing security incident
Waste material automatic discharge device and discharge method.
In order to solve the above technical problems, the present invention a kind of waste material automatic discharge device, including upper die repair side insert and with
The lower mould insert group that the upper die repair side insert is engaged, the upper die repair side insert include the horizontal upper flat plate put and position
Two relative upper mould waste knifes in upper flat plate side, the lower mould insert group include the lower mould below the upper flat plate
Deburring insert and positioned at the lower die repair side insert side and the lower mould waste knife relative with the upper mould waste knife, and it is described
Upper mould waste material edge is engaged for cutting waste material with the lower mould waste material edge, the upper mould waste material edge with it is described
The angle that the angle of upper flat plate cutting edge formation and the lower mould waste material edge and the lower die repair side insert cutting edge are formed is equal
In obtuse angle.
In one embodiment of the invention, the span of the obtuse angle angle is 95 degree to 98 degree.
In one embodiment of the invention, being provided with the upper die repair side insert in the downslide side of waste material can be along vertical side
To reciprocating pusher pin.
In one embodiment of the invention, the pusher pin is located in the through hole of the upper die repair side insert, and described
The inside of pusher pin is provided with spring.
In one embodiment of the invention, the lower mould waste knife lower end cutting edge thickness is stepped successively decreases.
Present invention also offers a kind of waste material discharge method using waste material automatic discharge device described in above-mentioned any one,
Comprise the following steps：Step S1：The upper die repair side insert is moved straight down until the upper mould waste knife and the lower mould
Waste knife, which is engaged, completes cutting waste material；Step S2：When the upper die repair side insert continues to move downwardly to stopping by waste material certainly
Dynamic discharge；Step S3：After the upper die repair side insert moves to stopping again straight up, repeated since step S1.
In one embodiment of the invention, in the step S1, the upper die repair side insert moves to institute straight down
When stating the pusher pin in the insert of die repair side and being contacted with waste material, the pusher pin moves straight up until the upper mould waste knife
It is engaged with the lower mould waste knife and completes cutting waste material.
In one embodiment of the invention, in the step S2, the upper die repair side insert, which continues to move downwardly to, stops
When only, the pusher pin moves straight down is automatically drained out waste material.
In one embodiment of the invention, in the step S2, the upper die repair side insert move downwardly to it is described under
Stop during the position of mould waste knife lower end cutting edge thickness-tapered.
In one embodiment of the invention, in the step S3, the upper die repair side insert drives the pusher pin to erect
Directly move up to after stopping again, repeated since step S1.
The above-mentioned technical proposal of the present invention has advantages below compared with prior art：
Waste material automatic discharge device and discharge method of the present invention, solve waste material edge it is relative when waste material glide
Problem, and fabricate easily, debugging it is simple and convenient, reduce technical staff debugging when there is the machine of safety problem
Rate, improve production efficiency, shorten mold developing cycle, reduce the development cost of mould, it is outstanding to better meet modern production
It is the needs for automating the production of line mould.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, specific embodiment and combination below according to the present invention
Accompanying drawing, the present invention is further detailed explanation, wherein
Fig. 1 is the general assembly drawing of waste material automatic discharge device of the present invention；
Fig. 2 is the schematic perspective view of upper die repair side insert of the present invention；
Fig. 3 is the top view of upper die repair side insert of the present invention；
Fig. 4 is the schematic perspective view of lower mould insert group of the present invention；
Fig. 5 is the top view of lower mould insert group of the present invention；
Fig. 6 is the schematic perspective view of lower mould waste knife of the present invention.
Embodiment
Embodiment 1：
As shown in figure 1, a kind of waste material automatic discharge device described in the present embodiment, including upper die repair side insert 10 and with institute
The lower mould insert group 20 that die repair side insert 10 is engaged is stated, the upper die repair side insert 10 includes the horizontal upper flat plate 11 put
And two relative upper mould waste knifes 12 positioned at the side of upper flat plate 11, the lower mould insert group 20 are included positioned at described flat
The lower die repair of the lower section of plate 11 while insert 21 and during positioned at the lower die repair side of insert 21 and with the upper phase of mould waste knife 12
To lower mould waste knife 22, and the upper cutting edge of mould waste knife 12 be engaged with the lower cutting edge of mould waste knife 22 for cut it is useless
Material, angle that the upper cutting edge of mould waste knife 12 and the cutting edge of upper flat plate 11 are formed and the lower cutting edge of mould waste knife 22 with
The angle that the cutting edge of lower die repair side insert 21 is formed is in obtuse angle.
Above-mentioned is the core technology scheme of the present invention, and waste material automatic discharge device of the present invention includes upper die repair side insert
10 and the lower mould insert group 20 that is engaged with the upper die repair side insert 10, the upper die repair side insert 10 includes horizontal put
Upper flat plate 11 and two relative upper mould waste knifes 12 positioned at the side of upper flat plate 11, the lower mould insert group 20 include being located at
The lower die repair of the lower section of the upper flat plate 11 while insert 21 and during positioned at lower die repair the side of insert 21 lower mould waste knife 22, and institute
State the cutting edge of mould waste knife 12 and the cutting edge of the lower mould waste knife 22 is engaged for ensureing that waste material is smoothly cut；On described
In obtuse angle, it is in eight to make two relative upper mould waste knifes 12 to the angle that the cutting edge of mould waste knife 12 is formed with the cutting edge of upper flat plate 11
Shape, so that waste material easily glides, the angle that the lower cutting edge of mould waste knife 22 is formed with the cutting edge of lower die repair side insert 21
Also in obtuse angle, it is also in eight shape to make two relative lower mould waste knifes 22, ensure that the lower mould waste knife 22 and the upper mould
Waste knife 12 is engaged, and makes waste material property cut, can not only make the waste material after cut-out be more easy to glide, and if waste material discharge when send out
Raw resilience and occur getting stuck problem when, because two relative lower mould waste knifes 22 are in eight shape, waste material is to the lower mould waste material
The screen resilience of knife 22 is decomposed, and formed after decomposition a thrust is more beneficial for the discharge of waste material, during so as to avoid waste material from discharging
Generation resilience and the problem of get stuck.
In the present invention, the value for the obtuse angle angle that the upper cutting edge of mould waste knife 12 is formed with the cutting edge of upper flat plate 11
When scope is 95 ° to 98 °, waste material is more easy to glide, and the lower cutting edge of mould waste knife 22 is formed with the lower die repair side insert cutting edge
The span of obtuse angle angle when being 95 ° to 98 °, not only can guarantee that waste material easily glides, effectively avoid tangible waste material from arranging
The problem of if resilience occurs when going out and gets stuck.
As shown in Fig. 2 it is provided with and can vertically moves back and forth in the downslide side of waste material in the upper die repair side insert 10
Pusher pin 30, after waste material departs from the cutting edge of the lower mould waste knife 22, in the elastic force and waste material itself of the pusher pin 30
In the presence of gravity, make to move down rapidly on the outside of waste material, quickly depart from from the lower bottom of mould waste knife 22, and then make waste material
Taken advantage of a situation under self gravitation effect and slip into slideway, prevent waste material to be stuck in the cutting edge of the lower mould waste knife 22 during downslide
It is interior, make waste material discharge more smooth.Specifically, the pusher pin 30 is in the through hole of the upper die repair side insert 10, and institute
The inside for stating pusher pin 30 is provided with spring, so that the pusher pin 30 can be moved back and forth vertically, when the upper die repair
When side insert 10 moves to the pusher pin 30 and contacted with waste material straight down, the pusher pin 30 moves straight up, described
Spring in pusher pin 30 is compressed, and is treated that the upper mould waste knife 12 is engaged with the lower mould waste knife 22 and is completed cutting waste material
Afterwards, the elastic force of the inner spring of pusher pin 30 discharges rapidly, the thrust of waste material downslide is converted into, in the elastic force of the pusher pin 30
And in the presence of the gravity of waste material itself, the waste material glides be stuck in the lower mould waste knife 22 so as to avoid waste material rapidly
In cutting edge.
As shown in Fig. 3, Fig. 4 and Fig. 5, described two upper mould waste knifes 12 are relatively set into eight shape, described two lower moulds
Waste knife 22 is oppositely arranged also into eight shape, and the upper cutting edge of mould waste knife 12 is engaged with the lower cutting edge of mould waste knife 22 can
Make waste material property cut, so as to make the waste material after cut-out be more easy to glide；When the lower lower end cutting edge thickness of mould waste knife 22 is in
Stepped when successively decreasing, the phenomenon even if waste material gets stuck, the waste material being stuck in the lower cutting edge of mould waste knife 22 also can be by virgin material
Push away so that waste material glides rapidly in the presence of self gravitation, therefore efficiently solves waste material and be stuck in the lower mould waste knife
The problem of 22 cutting edge, it is contemplated that the cutting edge strength of the lower waste knife 22, described in during the larger waste material of cutting thickness
The difficulty and the upper mould waste knife 12 of the problem of lower mould waste knife 22 may damage and production and processing and the lower mould waste material
The factors such as the class fit of knife 22, in the present invention, successively decrease as shown in fig. 6, the cutting edge thickness of lower mould waste knife 22 is stepped
Once, the cutting edge of the lower mould waste knife 22 is made there are two different thickness, and positioned at the sword of the lower lower end of mould waste knife 22
Mouth thickness of thin, so as to ensure that the intensity of the lower mould waste knife 22 to the full extent.In order to ensure that waste material more smoothly enters
The region of the cutting edge thickness of thin of the lower lower end of mould waste knife 22, the suitable upper mould waste knife is selected according to the thickness of waste material
12 cutting edges enter modulus, ensure the use level of the upper cutting edge of mould waste knife 12 and the lower cutting edge of mould waste knife 22 suitable
In the range of, so that the more conducively cutting of waste material.
In order that handling ease and the upper mould waste knife 12 are more easy to coordinate cutting described useless with the lower mould waste knife 22
Material, it is the lower cutting edge thickness-tapered of mould waste knife 22 at 5mm that height straight down is played on the lower cutting edge top of mould waste knife 22
Scope be 1 millimeter (mm) to 2 millimeters so that the cutting edge thickness lower mould waste knife 22 of the lower lower end of mould waste knife 22
1 millimeter or 2 millimeters of the cutting edge thickness of thin of upper end.
Embodiment 2：
Present invention also offers a kind of waste material discharge method using waste material automatic discharge device described in above-mentioned any one,
Comprise the following steps：Step S1：The upper die repair side insert 10 move straight down until the upper mould waste knife 12 with it is described
Lower mould waste knife 22, which is engaged, completes cutting waste material；Step S2：When the upper die repair side insert 10 continues to move downwardly to stopping
Waste material is automatically drained out；Step S3：After the upper die repair side insert 10 moves to stopping again straight up, since step S1
Repeat.
Waste material discharge method of the present invention, using waste material automatic discharge device described in above-mentioned any one, by institute
State die repair side insert 10 to be arranged on upper bolster, the lower mould insert group 20 is arranged on die shoe, the upper bolster installation
On lathe, the upper bolster is driven to be moved back and forth along vertical by lathe, in the step S1, the upper die repair side insert
10 motions straight down are until the upper mould waste knife 12 is engaged the step of completing cutting waste material with the lower mould waste knife 22；
In the step S2, when the upper die repair side insert 10 continues to move downwardly to stopping by waste material it is rapid under push away, make waste material rapid
Depart from lower mould waste knife 22 and the die shoe, avoiding waste material is stuck in the cutting edge of lower mould waste knife, smoothly enters setting
Slideway, make waste material slide to that mould is outer or lathe outside, complete waste material and be once automatically drained out acting；In the step S3, it is described on
After die repair side insert 10 moves to stopping again straight up, the upper die repair side insert 10 completes a stroke, takes finished product work
Part, repeat to enter since step S1 and circulate next time, so far complete the full-automatic discharging operation of waste material.By institute of the present invention
The waste material discharge method stated, waste material described in whole production process are automatically drained out and waste material will not occur being stuck in the lower mould waste knife
The problem of in 22 cutting edge, thus avoid pincers worker lathe carry out repetition test, therefore can save because experiment and caused by plate
Waste, and then reduce mould development cost；Furthermore the present embodiment methods described also improves operating efficiency, shortens mould development
Cycle, and accordingly reduce the incidence of security incident.
In the present embodiment, in the step S1, the upper die repair side insert 10 moves to the upper die repair straight down
When pusher pin 30 in side insert 10 contacts with waste material, the pusher pin 30 moves straight up until the upper mould waste knife 12
The step of completing cutting waste material is engaged with the lower mould waste knife 22；In the step S2, the upper die repair side insert 10 after
It is continuous when moving downwardly to stopping, the pusher pin 30 move straight down by waste material it is rapid under push away, waste material is departed from lower mould rapidly
Waste knife 22 and the die shoe, avoid waste material and be stuck in the cutting edge of lower mould waste knife, smoothly enter setting slideway, make to give up
Material slide to that mould is outer or lathe outside, complete waste material and be once automatically drained out acting；In the step S3, the upper die repair side insert
After 10 drive the pusher pin 30 to move to stopping again straight up, the upper die repair side insert 10 completes a stroke, takes
Finished work-piece, repeat to enter since step S1 and circulate next time, so far complete the full-automatic discharging operation of waste material.
In the present embodiment, the step S1 is before on described between die repair side insert 10 and the lower mould insert group 20
Waste material is put, the upper mould waste knife 12 is engaged with the lower mould waste knife 22 before completing cutting waste material, the upper die repair
In insert 10 and the lower die repair insert 21 complete deburring action, so as to ensure that the upper mould waste knife 12 with it is described under
Mould waste knife 22 is more easy to cutting waste material.
In the present embodiment, in the step S2, the upper die repair side insert 10, which continues to move downwardly to the lower mould, gives up
Stop during the position for expecting the lower end cutting edge thickness-tapered of knife 22, when the pusher pin 30 moves straight down, located at the upper die repair
The upper mould waste knife 12 of the both sides of side insert 10 pushes waste material the lower end for pushing the lower mould waste knife 22 to, in the pusher pin 30
The elastic force of spring discharges rapidly, the thrust of waste material downslide is converted into, in the elastic force of the pusher pin 30 and the gravity of waste material itself
In the presence of, the waste material glides be stuck in so as to avoid waste material in the cutting edge of the lower mould waste knife 22 rapidly.
To sum up, waste material automatic discharge device and discharge method of the present invention have advantages below：
1. the angle that the upper mould waste material edge is formed with the upper flat plate cutting edge is in obtuse angle, make two relative upper moulds
Waste knife is in eight shape, waste material can be made easily to glide, and the lower mould waste material edge is formed with the lower die repair side insert cutting edge
Angle also in obtuse angle, it is also in eight shape to make two relative lower mould waste knifes, ensure that the lower mould waste knife with it is described on
Mould waste knife is engaged, and makes waste material property cut, while makes the waste material after cut-out be more easy to glide, and if waste material when discharging
Resilience and occur getting stuck problem when, because two relative lower mould waste knifes are in eight shape, waste material is to the lower mould waste knife
Screen resilience is decomposed, and formed after decomposition a thrust is more beneficial for the discharge of waste material, if so as to avoid waste material from occurring when discharging
Resilience and the problem of get stuck；
2. be provided with the upper die repair side insert in the downslide side of waste material can vertically reciprocating pusher pin, give up
After material departs from the cutting edge of the lower mould waste knife, in the presence of the elastic force of the pusher pin and the gravity of waste material itself, make to give up
Material outside can move down rapidly, quickly depart from from the lower mould waste knife bottom, and then make waste material suitable under self gravitation effect
Gesture slips into slideway, prevents waste material to be stuck in during downslide in the cutting edge of the lower mould waste knife, makes waste material discharge more smooth.
3. the pusher pin is in the through hole of the upper die repair side insert, and the inside of the pusher pin is provided with spring,
So that the pusher pin can be moved back and forth vertically, when the upper die repair side insert moves to the pusher straight down
When pin contacts with waste material, the pusher pin is moved straight up, and the spring in the pusher pin is compressed, and treats the upper mould waste material
After knife is engaged completion cutting waste material with the lower mould waste knife, the elastic force of the pusher pin inner spring discharges rapidly, is converted into
Waste material glide thrust, in the presence of the elastic force of the pusher pin and the gravity of waste material itself, the waste material rapidly glide from
And avoid waste material and be stuck in the cutting edge of the lower mould waste knife.
Obviously, above-described embodiment is only intended to clearly illustrate example, not to the restriction of embodiment.For
For those of ordinary skill in the art, other various forms of changes or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change or change thus extended out
Among moving still in the protection domain of the invention.
Claims (8)
1. a kind of waste material automatic discharge device, including upper die repair is in insert (10) and insert (10) is engaged during with the upper die repair
Lower mould insert group (20), the upper die repair side insert (10) includes the horizontal upper flat plate (11) put and positioned at upper flat plate
(11) two of side relative upper mould waste knifes (12), the lower mould insert group (20) include being located under the upper flat plate (11)
The lower die repair of side while insert (21) and during positioned at the lower die repair insert (21) side and with upper mould waste knife (12) phase
To lower mould waste knife (22), and upper mould waste knife (12) cutting edge is engaged with lower mould waste knife (22) cutting edge and is used for
Cutting waste material, it is characterised in that：Angle that upper mould waste knife (12) cutting edge and the upper flat plate (11) cutting edge are formed and
The angle that lower mould waste knife (22) cutting edge is formed with lower die repair side insert (21) cutting edge is in obtuse angle；
Lower mould waste knife (22) the lower end cutting edge thickness is stepped to successively decrease；
Being provided with the upper die repair side insert (10) in the downslide side of waste material can vertically reciprocating pusher pin (30).
2. waste material automatic discharge device according to claim 1, it is characterised in that：The span of the obtuse angle angle is
95 degree to 98 degree.
3. waste material automatic discharge device according to claim 1, it is characterised in that：The pusher pin (30) is located on described
In the through hole of die repair side insert (10), and the inside of the pusher pin (30) is provided with spring.
4. the waste material discharge method of waste material automatic discharge device described in any one in a kind of 1-3 using claim, including such as
Lower step：Step S1：The upper die repair side insert (10) move straight down until the upper mould waste knife (12) with it is described under
Mould waste knife (22), which is engaged, completes cutting waste material；Step S2：The upper die repair side insert (10) continues to move downwardly to stopping
When waste material is automatically drained out；Step S3：After the upper die repair side insert (10) moves to stopping again straight up, from step S1
Start to repeat.
5. waste material discharge method according to claim 4, it is characterised in that：In the step S1, the upper die repair side edge
When the pusher pin (30) that block (10) moves on the upper die repair side insert (10) straight down contacts with waste material, the pusher pin
(30) motion straight up is until the upper mould waste knife (12) is engaged with the lower mould waste knife (22) and completes cutting waste material.
6. waste material discharge method according to claim 5, it is characterised in that：In the step S2, the upper die repair side edge
When block (10) continues to move downwardly to stopping, the pusher pin (30) is moved straight down is automatically drained out waste material.
7. waste material discharge method according to claim 6, it is characterised in that：In the step S2, the upper die repair side edge
Block (10) stops when moving downwardly to the position of lower mould waste knife (22) the lower end cutting edge thickness-tapered.
8. waste material discharge method according to claim 5, it is characterised in that：In the step S3, the upper die repair side edge
After block (10) drives the pusher pin (30) to move to stopping again straight up, repeated since step S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641199.6A CN104858334B (en) | 2014-11-13 | 2014-11-13 | Waste material automatic discharge device and discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641199.6A CN104858334B (en) | 2014-11-13 | 2014-11-13 | Waste material automatic discharge device and discharge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104858334A CN104858334A (en) | 2015-08-26 |
| CN104858334B true CN104858334B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410641199.6A Active CN104858334B (en) | 2014-11-13 | 2014-11-13 | Waste material automatic discharge device and discharge method |
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| CN (1) | CN104858334B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734565A (en) * | 2016-11-16 | 2017-05-31 | 重庆泰奥豪骋科技有限公司 | A kind of roof of the vehicle continuous mould pressing device and production method |
| CN107282746B (en) * | 2017-07-31 | 2019-04-09 | 昆山信杰汽车部件有限公司 | A kind of stamping die having waste knife |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2600475B2 (en) * | 1990-10-29 | 1997-04-16 | 三菱自動車工業株式会社 | Panel cutting molding machine |
| CN101367106B (en) * | 2008-08-08 | 2010-10-13 | 奇瑞汽车股份有限公司 | Waste material discharging structure of vehicle body cladding element punch mould |
| US8613213B2 (en) * | 2009-02-12 | 2013-12-24 | Magna International Inc. | Interchangeable spring loaded scrap cutter |
| CN201613310U (en) * | 2009-12-25 | 2010-10-27 | 奇瑞汽车股份有限公司 | Mechanism for removing scrap at special part of vehicle covering component |
| CN201988639U (en) * | 2011-04-15 | 2011-09-28 | 沈阳来金汽车零部件有限公司 | Pillar inner plate trimming and piercing die embedded with waste material automatic sliding-out device |
| CN203197153U (en) * | 2013-04-05 | 2013-09-18 | 张燕琴 | Mechanism for preventing workpiece or scrap material from ascending |
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2014
- 2014-11-13 CN CN201410641199.6A patent/CN104858334B/en active Active
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| CN104858334A (en) | 2015-08-26 |
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