CN108097804A - A kind of folding, which is riveted, to be put - Google Patents
A kind of folding, which is riveted, to be put Download PDFInfo
- Publication number
- CN108097804A CN108097804A CN201711271175.6A CN201711271175A CN108097804A CN 108097804 A CN108097804 A CN 108097804A CN 201711271175 A CN201711271175 A CN 201711271175A CN 108097804 A CN108097804 A CN 108097804A
- Authority
- CN
- China
- Prior art keywords
- punch
- spring
- pedestal
- hole
- stripper plate
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 50
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000004080 punching Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000011017 operating method Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Abstract
It is riveted and puts the invention discloses a kind of folding, including upper mould piece, stripper plate, guide post, pedestal, pressing punch, bending punch pin and the first spring；Stripper plate is equipped with feeding hole, and upper mould piece is arranged at directly over feeding hole；Stripper plate is additionally provided with sliding eye, and guide post one end is located on pedestal, and the guide post other end runs through sliding eye so that stripper plate is moved up and down along the axial direction of guide post；It flattens punch first end to be located on pedestal and immediately below feeding hole, also, flattens punch and be equipped with channel lumens, bending punch pin is arranged in channel lumens, and the first spring is located in pedestal and props up bending punch pin first end so that bending punch pin moves up and down in channel lumens；Bending punch pin second end is equipped with ramp.The present invention can be solved in the prior art for handware to be struck out to the device of curved shape, and operating procedure is various, causes production efficiency low, it is difficult to the problem of meeting the production requirement of society's fast development.
Description
Technical field
The present invention relates to folding riveting equipment technical fields more particularly to a kind of folding to be riveted and put.
Background technology
At present, the products application of hardware stamping bending machining is extensive, especially in electronic digital product scope or machinery zero
In part, such as a kind of 90 ° of bendings handware, the quality of these bending handwares and assembling requirement are all very high.In the prior art,
For by the device of handware punching press curved shape in 90 °, operating procedure to be various, causes production efficiency low, it is difficult to meet society
The fast-developing production requirement of meeting.
The content of the invention
For overcome the deficiencies in the prior art, it is riveted and puts it is an object of the invention to provide a kind of folding, can solve existing
For handware to be struck out to the device of curved shape in technology, operating procedure is various, causes production efficiency low, it is difficult to meet
The problem of production requirement of social fast development.
The mesh of the present invention can be used following technical solution and realize：
A kind of folding, which is riveted, to be put, including upper mould piece, stripper plate, guide post, pedestal, pressing punch, bending punch pin and the first spring；
Stripper plate is equipped with feeding hole, and upper mould piece is arranged at directly over feeding hole；
Stripper plate is additionally provided with sliding eye, and guide post one end is located on pedestal, and the guide post other end runs through sliding eye so that stripper plate
It is moved up and down along the axial direction of guide post；
It flattens punch first end to be located on pedestal and immediately below feeding hole, also, flattens punch and be equipped with channel lumens, it is curved
It repulses or subdue the enemy head to be arranged in channel lumens, the first spring is located in pedestal and props up bending punch pin first end so that bending punch pin is logical
Road intracavitary moves up and down；
Bending punch pin second end is equipped with ramp.
Further, pedestal includes die holder, stent and template, and template-setup is arranged in pedestal upper end, die holder under stent
End.
Further, pedestal further includes spring base, and spring base is located at below template, and the first spring first end is located at die holder
On, the first spring second end is located on spring base so that spring base props up template.
Further, pedestal further includes punch bearing, flattens punch first end and is located in template, punch bearing is located at template
Lower section flattens punch first end through template and props up punch bearing.
Further, punch bearing is equipped with first through hole, and channel lumens are connected with first through hole so that are arranged in channel lumens
Bending punch pin first end be in contact with spring base.
Further, second spring is further included；Template is equipped with blind hole, and second spring is arranged in blind hole.
Further, stop collar is further included, the second through hole is additionally provided in template, stripper plate is additionally provided with third through-hole, /V
Set sequentially passes through the second through hole and third through-hole.
Further, it is in 45 ° between ramp and pressing punch second end end face.
Further, it is parallel with stripper plate lower surface to flatten punch second end end face.
Compared with prior art, the beneficial effects of the present invention are：Due to including upper mould piece, stripper plate, guide post, pedestal, pressure
Flat punch, bending punch pin and the first spring, form feeding hole on stripper plate, and upper mould piece is mounted on directly over feeding hole,
And sliding eye is also formed on stripper plate, guide post one end is mounted on pedestal, the guide post other end runs through sliding eye so that de- material
Plate is moved up and down along the axial direction of guide post, is flattened punch first end and is fixedly mounted on pedestal, also, the pressing punch is positioned at upper
Expect immediately below hole, also form channel lumens on punch in addition, flattening, bending punch pin is mounted in channel lumens, wherein, the first bullet
Spring is mounted in pedestal and props up bending punch pin first end so that bending punch pin moves up and down in channel lumens, in addition, bending stamping
Head second end forms ramp；When the folding being used to be riveted put, workpiece is placed in feeding hole, external force causes upper mold
Part pushes, and the upper mould piece in pushing presses down workpiece and stripper plate together, until the ramp of workpiece contact Bending punch, this
When, the elastic force of the first spring is more than the pressure that workpiece is given, workpiece can be bent along ramp (for example, due to
The elastic force of first spring causes Bending punch up to be ejected in channel lumens, so that workpiece is bent along ramp, directly
It is extremely that workpiece bending is at 45 °), slowly increase the pressure that workpiece gives the first spring, when the pressure that workpiece gives the first spring is big
When the elastic force of the first spring, Bending punch moves down in channel lumens, i.e., hides completely into the channel lumens for flattening punch, i.e.,
It may be such that flattening punch flattens workpiece, operating procedure is simple, efficient, very convenient.Energy solution is used in the prior art will
Handware strikes out the device of curved shape, and operating procedure is various, causes production efficiency low, it is difficult to it is fast-developing to meet society
Production requirement the problem of.
Description of the drawings
Fig. 1 is that present invention folding is riveted the structure diagram put；
Fig. 2 be folding shown in Fig. 1 be riveted put in load onto the structure diagram of workpiece；
Fig. 3 is that folding is riveted the structure diagram for putting middle stripper plate shown in Fig. 1；
Fig. 4 be folding shown in Fig. 1 be riveted put in hide the structure diagram of stripper plate and upper mould piece；
Fig. 5 be folding shown in Fig. 1 be riveted put in hide the structure diagram of stripper plate and another angle of upper mould piece；
Fig. 6 is that folding shown in Fig. 1 is riveted the structure diagram for putting middle pressing punch；
Fig. 7 is that folding is riveted the structure diagram for putting middle Bending punch shown in Fig. 1.
In figure：1st, upper mould piece；2nd, stripper plate；21st, feeding hole；22nd, sliding eye；23rd, third through-hole；3rd, guide post；41st, mould
Seat；42nd, stent；43rd, template；44th, spring base；45th, punch bearing；5th, punch is flattened；51st, channel lumens；6th, bending punch pin；61、
Ramp；7th, the first spring；8th, second spring；9th, stop collar.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Fig. 1-7 are referred to, is riveted and puts the present invention relates to a kind of folding, including upper mould piece 1, stripper plate 2, guide post 3, pedestal, pressure
Flat punch 5, bending punch pin 6, the first spring 7, second spring 8 and stop collar 9.Wherein, pedestal includes die holder 41, stent 42, mould
Plate 43, spring base 44 and punch bearing 45.
Feeding hole 21 is formed in stripper plate 2, the workpiece for needing to bend can be placed in the feeding hole 21.
Since pedestal includes die holder 41, stent 42, template 43, and template 43 is fixedly mounted on stent 42 by bolt
End, 42 lower end of stent is fixedly mounted on by bolt by die holder 41 so that there are one accommodate for shaping between template 43 and die holder 41
Space.
In the present embodiment, template 43 is fixedly mounted on by 42 upper end of stent by bolt.In other embodiments, Ke Yitong
It crosses screw and template 43 is fixedly mounted on 42 upper end of stent, alternatively, can be fixedly mounted on template 43 by way of plugging together
42 upper end of stent.As long as ensure template 43 being fixedly mounted on 42 upper end of stent.
In the present embodiment, die holder 41 is fixedly mounted on by 42 lower end of stent by bolt.In other embodiments, Ke Yitong
It crosses screw and die holder 41 is fixedly mounted on 42 lower end of stent, alternatively, can be fixedly mounted on die holder 41 by way of plugging together
42 lower end of stent.As long as ensure die holder 41 being fixedly mounted on 42 lower end of stent.
In addition, pedestal further includes spring base 44 and punch bearing 45, wherein, spring base 44 is located at below template 43, and the
One spring, 7 first end is fixedly mounted on 41 upper surface of die holder, and 7 second end of the first spring is fixed on one with 44 lower surface of spring base
It rises, punch bearing 45 is fixedly mounted on by 43 lower section of template by bolt, i.e., the first spring 7 passes sequentially through spring base 44 and punch
Bearing 45 props up the template 43.
In the present embodiment, punch bearing 45 is fixedly mounted on by 43 lower section of template by bolt.In other embodiments, may be used
Punch bearing 45 is fixedly mounted on 43 lower section of template by screw, alternatively, can be by way of plugging together by punch bearing
45 are fixedly mounted on 43 lower section of template.As long as ensure punch bearing 45 being fixedly mounted on 43 lower section of template.
In the present embodiment, the quantity of the first spring 7 four.In other embodiments, the quantity of the first spring 7 can basis
Actual conditions change, for example, the quantity of the first spring 7 can be three or, the quantity of stop collar 9 can be five
It is a, as long as ensureing that the first spring 7 passes sequentially through spring base 44 and punch bearing 45 props up the template 43.
5 first end of punch will be flattened to be fixedly mounted in template 43 so that flatten 5 first end of punch through template 43 and support
Firmly punch bearing 45.And first through hole is formed on punch bearing 45, and it flattens and forms channel lumens 51 on punch 5, the channel lumens
51 connect with first through hole, and bending punch pin 6 is placed in channel lumens 51 so that the bending punch pin 6 being placed in channel lumens 51
First end is in contact with spring base 44, also, bending punch pin 6 can move up and down in channel lumens 51.
Stripper plate 2 also forms sliding eye 22, and (3 one end of guide post is mounted on 41 He of die holder to 3 one end of guide post on pedestal
In template 43), and 3 other end of guide post runs through sliding eye 22 so that stripper plate 2 can move up and down (example along the axial direction of guide post 3
If stripper plate 2 can be relatively close with template 43, alternatively, stripper plate 2 can be relatively distant from template 43).
In the present embodiment, the quantity of guide post 3 is four.In other embodiments, the quantity of guide post 3 can be according to actual feelings
Condition changes, for example, the quantity of guide post 3 can be three or, the quantity of guide post 3 can be two.
Upper mould piece 1 is mounted on directly over feeding hole 21, and flattens 5 second end of punch and is located at immediately below feeding hole 21, by
It is placed in by bending punch pin 6 in channel lumens 51 so that 6 first end of bending punch pin and spring base 44 being placed in channel lumens 51
It is in contact, also, bending punch pin 6 can move up and down in channel lumens 51, and 6 second end of bending punch pin forms ramp
61, it the ramp 61 and flattens and (flattens 5 second end end face of punch and 2 following tables of stripper plate in 45 ° between punch 5 second end end face
Face is parallel), and blind hole is formed in template 43, second spring 8 is installed in blind hole, i.e. 8 first end of second spring and blind hole
Bottom wall is in contact, and 8 second end of second spring is in contact with stripper plate 2；When the folding being used to be riveted put, workpiece is placed on
In feeding hole 21, external force causes upper mould piece 1 to push, and workpiece and stripper plate 2 are pressed down (this mistake by the upper mould piece 1 in pushing together
Journey, second spring 8 are slowly compressed), until the ramp 61 of workpiece contact Bending punch, at this point, the elastic force of the first spring 7 is more than
The pressure that workpiece is given can be bent workpiece (for example, since the elastic force of the first spring 7 causes along ramp 61
Bending punch up ejects in channel lumens 51, so that workpiece is bent along ramp 61, until workpiece is bent into
45 °), slowly increase the pressure that workpiece gives the first spring 7, when the pressure that workpiece gives the first spring 7 is more than the first spring 7
During elastic force, Bending punch moves down in channel lumens 51, i.e., hides completely into the channel lumens 51 for flattening punch 5, you can so that
It flattens punch 5 workpiece is flattened and (bent workpiece in 90 °), operating procedure is simple, efficient, very convenient.
In the present embodiment, the quantity of second spring 8 two.In other embodiments, the quantity of second spring 8 can basis
Actual conditions change, for example, the quantity of second spring 8 can be three or, the quantity of stop collar 9 can be five
It is a.
The second through hole is also formed in template 43, also forms third through-hole 23 in stripper plate 2, by stop collar 9 successively
It is connected through the second through hole with third through-hole 23 and with bolt thread, can prevent stripper plate 2 from departing from.
In the present embodiment, the quantity of stop collar 9 is two.In other embodiments, the quantity of stop collar 9 can be according to reality
Border situation changes, for example, the quantity of stop collar 9 can be three or, the quantity of stop collar 9 can be four, only
Ensure stop collar 9 sequentially passing through the second through hole and third through-hole 23 and be connected with bolt thread, can prevent that stripper plate 2 is de-
From.
In the present embodiment, the quantity of the second through hole and third through-hole 23 is two.In other embodiments, the second through hole and
The quantity of third through-hole 23 can be changed according to actual conditions, for example, the quantity of the second through hole and third through-hole 23 can be with
For three, or, the quantity of the second through hole and third through-hole 23 can be four, as long as ensureing to sequentially pass through stop collar 9
Second through hole is connected with third through-hole 23 and with bolt thread, can prevent stripper plate 2 from departing from.
During using the present invention, due to including upper mould piece 1, stripper plate 2, guide post 3, pedestal, pressing punch 5,6 and of bending punch pin
First spring 7, forms feeding hole 21 on stripper plate 2, and upper mould piece 1 is mounted on directly over feeding hole 21, and on stripper plate 2
Sliding eye 22 is also formed, 3 one end of guide post is mounted on pedestal, 3 other end of guide post runs through sliding eye 22 so that stripper plate 2
It is moved up and down along the axial direction of guide post 3, flattens 5 first end of punch and be fixedly mounted on pedestal, also, the pressing punch 5 is located at
Immediately below feeding holes 21, channel lumens 51 are also formed on punch 5 in addition, flattening, bending punch pin 6 is mounted in channel lumens 51,
Wherein, the first spring 7 is mounted in pedestal and props up 6 first end of bending punch pin so that bending punch pin 6 is upper and lower in channel lumens 51
It is mobile, in addition, 6 second end of bending punch pin forms ramp 61；When the folding being used to be riveted put, workpiece is placed on
Expect in hole 21, external force causes upper mould piece 1 to push, and the upper mould piece 1 in pushing presses down workpiece and stripper plate 2 together, until work
Part contacts the ramp 61 of Bending punch, at this point, the elastic force of the first spring 7 is more than the pressure that workpiece is given, it can be by workpiece
It is bent along ramp 61 (for example, since the elastic force of the first spring 7 is so that Bending punch up pushes up in channel lumens 51
Go out, so that workpiece is bent along ramp 61, until workpiece bending is at 45 °), slowly increase workpiece and give the first bullet
The pressure of spring 7, when the pressure that workpiece gives the first spring 7 is more than the elastic force of the first spring 7, Bending punch is in channel lumens 51
It moves down, i.e., hides completely into the channel lumens 51 for flattening punch 5, you can flatten workpiece (i.e. by workpiece so that flattening punch 5
Bend in 90 °), operating procedure is simple, efficient, very convenient.It can solve curved for handware to be struck out in the prior art
The device of curved shape, operating procedure is various, causes production efficiency low, it is difficult to meet asking for the fast-developing production requirement of society
Topic.
The above embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (9)
- It is put 1. a kind of folding is riveted, it is characterised in that：Including upper mould piece, stripper plate, guide post, pedestal, flatten punch, bending punch pin and First spring；The stripper plate is equipped with feeding hole, and the upper mould piece is arranged at directly over feeding hole；The stripper plate is additionally provided with sliding eye, and described guide post one end is located on pedestal, and the guide post other end runs through the slip Hole so that the stripper plate is moved up and down along the axial direction of guide post；The pressing punch first end is located on pedestal and immediately below feeding hole, also, the pressing punch is equipped with passage Chamber, the bending punch pin are arranged in the channel lumens, and first spring is located in pedestal and props up bending punch pin first end, So that the bending punch pin moves up and down in channel lumens；The bending punch pin second end is equipped with ramp.
- It is put 2. folding as described in claim 1 is riveted, it is characterised in that：The pedestal includes die holder, stent and template, the mould Plate is arranged on pedestal upper end, and the die holder is arranged on pedestal lower end.
- It is put 3. folding as claimed in claim 2 is riveted, it is characterised in that：The pedestal further includes spring base, the spring seat Below template, first spring first end is located on die holder, and the first spring second end is located on spring base so that institute It states spring base and props up the template.
- It is put 4. folding as claimed in claim 3 is riveted, it is characterised in that：The pedestal further includes punch bearing, described to flatten punching Head first end is located in template, and the punch bearing is located at below template, and the pressing punch first end is through template and props up Punch bearing.
- It is put 5. folding as claimed in claim 4 is riveted, it is characterised in that：The punch bearing is equipped with first through hole, the passage Chamber is connected with the first through hole so that the bending punch pin first end being arranged in the channel lumens is in contact with spring base.
- It is put 6. folding as claimed in claim 5 is riveted, it is characterised in that：Further include second spring；The template is equipped with blind hole, The second spring is arranged in blind hole.
- It is put 7. folding as claimed in claim 6 is riveted, it is characterised in that：Stop collar is further included, second is additionally provided in the template Through hole, the stripper plate are additionally provided with third through-hole, and the stop collar sequentially passes through the second through hole and third through-hole.
- It is put 8. the folding as any one of claim 1-7 is riveted, it is characterised in that：The ramp is with flattening punch second It it is in 45 ° between the end face of end.
- It is put 9. folding as claimed in claim 8 is riveted, it is characterised in that：The pressing punch second end end face and stripper plate following table Face is parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711271175.6A CN108097804B (en) | 2017-12-05 | 2017-12-05 | Folding riveting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711271175.6A CN108097804B (en) | 2017-12-05 | 2017-12-05 | Folding riveting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108097804A true CN108097804A (en) | 2018-06-01 |
| CN108097804B CN108097804B (en) | 2024-03-08 |
Family
ID=62208988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711271175.6A Active CN108097804B (en) | 2017-12-05 | 2017-12-05 | Folding riveting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108097804B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732592A (en) * | 2019-11-06 | 2020-01-31 | 安徽省繁昌县皖南阀门铸造有限公司 | fold that production efficiency is high and rivet device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05285553A (en) * | 1992-04-14 | 1993-11-02 | Amada Metrecs Co Ltd | Die forming metallic mold |
| KR20110000021A (en) * | 2009-06-26 | 2011-01-03 | (주)성남테크 | Punching mold device |
| CN104070114A (en) * | 2014-07-22 | 2014-10-01 | 合肥金海康五金机械制造有限公司 | Multi-process flanging forming die |
| CN104338851A (en) * | 2013-08-07 | 2015-02-11 | 江苏博俊工业科技股份有限公司 | Stamping die for once forming of hole flanging and riveting |
| CN204842663U (en) * | 2015-07-02 | 2015-12-09 | 扬州广菱电子有限公司 | Forming die of accurate mounting panel of LED module curved surface |
| CN205833973U (en) * | 2016-05-31 | 2016-12-28 | 江苏高歌机电有限公司 | A kind of Bending Mould with buffering |
| CN106424376A (en) * | 2016-12-16 | 2017-02-22 | 广东美晨通讯有限公司 | Bend-stamping mold |
| CN207563584U (en) * | 2017-12-05 | 2018-07-03 | 广东新宝精密制造股份有限公司 | A kind of folding, which is riveted, to be put |
-
2017
- 2017-12-05 CN CN201711271175.6A patent/CN108097804B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05285553A (en) * | 1992-04-14 | 1993-11-02 | Amada Metrecs Co Ltd | Die forming metallic mold |
| KR20110000021A (en) * | 2009-06-26 | 2011-01-03 | (주)성남테크 | Punching mold device |
| CN104338851A (en) * | 2013-08-07 | 2015-02-11 | 江苏博俊工业科技股份有限公司 | Stamping die for once forming of hole flanging and riveting |
| CN104070114A (en) * | 2014-07-22 | 2014-10-01 | 合肥金海康五金机械制造有限公司 | Multi-process flanging forming die |
| CN204842663U (en) * | 2015-07-02 | 2015-12-09 | 扬州广菱电子有限公司 | Forming die of accurate mounting panel of LED module curved surface |
| CN205833973U (en) * | 2016-05-31 | 2016-12-28 | 江苏高歌机电有限公司 | A kind of Bending Mould with buffering |
| CN106424376A (en) * | 2016-12-16 | 2017-02-22 | 广东美晨通讯有限公司 | Bend-stamping mold |
| CN207563584U (en) * | 2017-12-05 | 2018-07-03 | 广东新宝精密制造股份有限公司 | A kind of folding, which is riveted, to be put |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732592A (en) * | 2019-11-06 | 2020-01-31 | 安徽省繁昌县皖南阀门铸造有限公司 | fold that production efficiency is high and rivet device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108097804B (en) | 2024-03-08 |
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