CN107377805A - Detain bone machine - Google Patents
Detain bone machine Download PDFInfo
- Publication number
- CN107377805A CN107377805A CN201710576220.2A CN201710576220A CN107377805A CN 107377805 A CN107377805 A CN 107377805A CN 201710576220 A CN201710576220 A CN 201710576220A CN 107377805 A CN107377805 A CN 107377805A
- Authority
- CN
- China
- Prior art keywords
- clinching
- mould
- shaped platform
- button
- projection
- 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
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000004080 punching Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000001483 mobilizing effect Effects 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 14
- 229910052751 metal Inorganic materials 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 14
- 238000003825 pressing Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000000465 moulding 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
- B21D51/20—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like barrels
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses one kind to detain bone machine, including frame and the clinching mechanism, clinching shaped platform and the drive mechanism that are installed on frame；The clinching mechanism and clinching shaped platform are vertically setting up and down；The clinching mechanism and clinching shaped platform at least one be connected with drive mechanism.Pressing button is detained when detaining and by making between clinching mechanism and clinching shaped platform by punching press effect so that multiple processes, which are combined as a whole, completes button bone process, realizes the close connection of process, saves the time by being formed under being acted on provided with the punching press of clinching mechanism；Do not limited when processing simultaneously by shape of product size, the metal cylinder of different shape size can be processed, equipment overall structure is simple, and processing effect is good, greatly increases production efficiency and saves equipment and the cost of work.
Description
Technical field
The present invention relates to a kind of metal cylinder production equipment technology, more particularly to the button bone equipment of metal cylinder.
Background technology
At present, some metal cylinder machine-shapings connection is typically all more by clinching, clinching shaping etc. using sheet metal
The both ends connection clinching of one or more pieces sheet metal is molded by individual process.Among prior art in order to complete these clinchings,
It is typically all to need to be divided into the more plant equipment such as button pressor machine, clinching forming machine to go to complete these that clinching, which is molded different manufacturing procedures,
Manufacturing procedure, and every machinery is required for multiple human hands to go operational control, it is necessary to which the plant equipment of a upper process machines
The plant equipment that could be circulated to subsequent processing is processed, low production efficiency, and labor cost is high.
Among prior art also have some automation button bone shaping equipment, these equipment advantages be button bone shaping facilitate it is fast
Manpower is saved in victory, automated production, but a disadvantage is that these equipment need to realize and a series of complete by streamline
Automated system goes to support, equipment is complicated overall huge, and equipment investment maintenance expense is high, causes a certain degree of investment and energy consumption wave
Take, and it is typically all fixed forming cavity to detain bone shaping equipment due to it, so as to which the product of same shape size can only be produced,
Product of different sizes of all kinds can not be produced, so its production limitation is very big, the various productions of enterprise can not be applicable
The production and development of product.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides one kind to detain bone shaping equipment, can clinching, clinching into
Type etc. is buckled bone manufacturing procedure and is combined as a whole, and can be applied to produce different size of product, equipment overall structure letter
Singly it is easily achieved.
The present invention is realized in that above-mentioned purpose：
Bone machine, including frame are detained, and is installed on clinching mechanism, clinching shaped platform and the drive mechanism of frame；The clinching
Mechanism is vertically setting up and down with clinching shaped platform；The clinching mechanism and clinching shaped platform at least one with driving
Mechanism is connected.
Wherein, the clinching mechanism includes clinching mould I and clinching mould II, the clinching mould I are provided with left projection mould
Tool and right groove mould, are slidably fitted with clinching mould II, the clinching mould between the left projection mould and right groove mould
Tool II both sides are respectively equipped with the left groove mould to match with left projection mould, and the right projection to match with right groove mould
Mould；Between the left projection mould and left groove mould die cavity, the right groove mould and right projection mould are fastened as provided with a left side
Between provided with the right side be fastened as die cavity；Clinching mould I mobilizing exerciseses relative with clinching mould II.
Wherein, the clinching mould I is flexibly connected with drive mechanism respectively with clinching mould II.
Wherein, the drive mechanism includes being used for the cylinder drive and use for declining clinching mould I and clinching mould II
In the cylinder driver for rising clinching mould I and clinching mould II；The clinching mould I tops are provided with groove, the oil cylinder
Drive device is flexibly connected by groove with clinching mould I；The cylinder driver is connected with clinching mould II.
Wherein, the clinching mould I both ends are connected with the guide pillar for stable steering, and the clinching mould I passes through guide pillar
It is flexibly connected with frame.
Wherein, the clinching shaped platform is equiped with projection, and the projection is provided with arc surface；The clinching mould II is with dashing forward
Block forms clinching forming cavity with respect to mobilizing exercises between the clinching mould II and projection.
Wherein, the frame is additionally provided with the fixed mount buckle mechanism for fixing clinching shaped platform, the fixed mount deduction
The device of rotation driving that opening and closing was at least buckled and buckled for bogie to structure by frame forms, and the device of rotation driving is provided with transmission and blocked
Tooth, the frame are buckled the one end being connected with device of rotation driving and are flexibly connected provided with gear with transmission latch, its other end and clinching
Shaped platform is flexibly connected.
Wherein, the clinching shaped platform is connected in cylinder, described clinching shaped platform one end with frame, and the other end is set
There is clamping block；The frame is buckled by clamping block and clinching shaped platform active buckle.
Wherein, the clinching shaped platform both sides are provided with anti-clip slot.
Wherein, workpiece both ends are individually positioned in clinching mechanism, start drive mechanism drive clinching mechanism and clinching into
Type platform carries out punching press effect, so that workpiece both ends form left buckle and buckled with right；Then left button is fastened with right button and placed
In clinching shaped platform, clinching mechanism carries out punching press effect under drive mechanism drive again with clinching shaped platform, so that
Left buckle at workpiece both ends is withheld conjunction with the right side and linked together, so as to complete to detain bone manufacturing procedure.
Beneficial effects of the present invention：The present invention is by provided with clinching mechanism and clinching shaped platform so that multiple process knots
Be integrated completion button bone process, realizes the close connection of process, saves the time；It is not big by shape of product when processing simultaneously
Small limitation, the metal cylinder of different shape size can be processed, equipment overall structure is simple, and processing effect is good, greatly carries
High production efficiency and save equipment and the cost of work.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is clinching mechanism of the present invention and the structural representation of clinching shaped platform；
Fig. 3 is the enlarged diagram of " A " of the invention；
In figure, 1. clinching mechanisms, 2. clinching shaped platforms, 21. projections, 22. clamping blocks, 23. anti-clip slots, 24. arc surfaces, 3. are driven
Motivation structure, 31. cylinder drives, 32. cylinder drivers, 4. clinching mould I, 41. left projection moulds, 42. right groove moulds
Tool, 43. grooves, 5. clinching mould II, 51. left groove moulds, 52. right projection moulds, 6. guide pillars, 7. fixed mount buckle mechanisms, 71.
Frame is buckled, 72. device of rotation driving, 73. transmission latches, 74. gears.
Embodiment
As shown in Figure 1 to Figure 3, a kind of button bone machine for the connection of cylinder button bone, including frame, and it is installed on frame
Clinching mechanism 1, clinching shaped platform 2 and drive mechanism 3；The clinching mechanism 1 is vertically upper and lower with clinching shaped platform 2
Set；At least one is connected with drive mechanism 3 for the clinching mechanism 1 and clinching shaped platform 2, by provided with clinching mechanism 1
With clinching shaped platform 2 so that multiple processes, which are combined as a whole, completes button bone process, realizes the close connection of process, saves
Save time；Do not limited when processing simultaneously by shape of product size, the metal cylinder of different shape size can be processed, equipment is whole
Body is simple in construction, and processing effect is good, greatly increases production efficiency and saves equipment and the cost of work.
In use, the left side that pre-bending metal both ends are individually positioned in is fastened as die cavity and the right side is fastened as in die cavity, then pre-bending is golden
The both ends of category are under clinching mould I 4 and clinching mould II 5 punching press effect, the left projection mould 41 and the left groove mould that pass through
Tool 51 forms left button, and right groove mould 42 forms right buckle with right projection mould 52；Then clinching mould I 4 and clinching mould
II 5 rises back to initial position, and the left button being stamped and formed out is taken off out snapping with the right side is placed on clinching mould II 5 and projection
In clinching forming cavity between 21, clinching mould II 5 withholds conjunction with the side for making both ends snapping overlapping under the punching press effect of projection 21
Bone shaping is detained, so as to complete the processing of the button bone shaping of metal stack shell, by multiple processes, closely connection is combined as a whole, simultaneously because
Pre-bending metal is processed in clinching shaped platform 2 during processing, as long as therefore the metal cylinder bigger than the external diameter of clinching shaped platform 2 production
Product, it can carry out detaining bone shaping processing by the button bone equipment, will not be limited by shape of product size, and it is easy to operate
Simply, device structure is simply easily achieved, and production cost is low, and product processing quality is good.
Exist it should further be noted that the clinching mechanism 1 is not only limited to clinching mechanism 1 with the position of clinching shaped platform 2
Position form of the upper or clinching shaped platform 2 under, its position is interchangeable equally to can be achieved above-mentioned button bone manufacturing procedure.
As shown in Fig. 2 include due to effectively making left button and right button, the clinching mechanism 1 in order to fast accurate
Clinching mould I 4 and clinching mould II 5, the clinching mould I 4 is provided with left projection mould 41 and right groove mould 42, described
Clinching mould II 5, the both sides of clinching mould II 5 difference are slidably fitted between left projection mould 41 and right groove mould 42
Provided with the left groove mould 51 to match with left projection mould 41, and the right projection mould to match with right groove mould 42
52；Between the left projection mould 41 and left groove mould 51 die cavity, the right groove mould 42 and right projection are fastened as provided with a left side
Between mould 52 die cavity is fastened as provided with the right side；The clinching mould I 4 and clinching mould II 5 is with respect to mobilizing exercises；It is to pass through a left side
Punching press effect one the left of upward opening of lower formation of projection mould 41 and left groove mould 51 is buckled, and the He of right groove mould 42
The punching press effect of right projection mould 52 is lower formed one it is downwardly open it is right buckle, effectively can pass through a punching press fast accurate
Effect is lower just to stamp out left button and right button by pre-bending metal both ends simultaneously, improves processing efficiency and machining accuracy.
As shown in Figures 2 and 3, in order to realize clinching button bone shaping, the clinching shaped platform 2 is equiped with projection
21, the projection 21 is provided with arc surface 24；The clinching mould II 5 is with projection 21 with respect to mobilizing exercises, the clinching mould II
Clinching forming cavity is formed between 5 and projection 21；So as to be acted between clinching mould II 5 and projection 21 by punching press, by pre-bending gold
Belong to left button to withhold conjunction with the right side and be closely joined together, can it is more quick, precisely, effectively clinching shaping.
As shown in figure 3, due among clinching molding process, it is necessary to people need help workpiece both ends in clinching
It is processed on shaped platform 2, in order to prevent that hand can be crushed in process, the both sides of clinching shaped platform 2 are provided with anti-
Clip slot 23.Therefore the anti-clip slot 23 that both sides are provided with can be supplied to the more well-to-do mobile spaces of people will not when clinching is molded
Crushed, ensure that the personal safety of people.
Due to realizing the raising and lowering of balance and stability, clinching mould I 4 and the both ends of clinching mould II 5 and driving in the past
Mechanism 3 is fixedly connected, but when the drive mechanism 3 of one end break down or somewhat postpone can not normal work, it is and simultaneously another
Hold drive mechanism 3 also when proper motion works up or down the drive mechanism 3 at both ends can be caused to occur mutually to pull and cause
Card cylinder is destroyed, and in order to prevent the above situation, therefore the drive mechanism 3 includes being used to decline clinching mould I 4 and clinching
Mould II 5 cylinder drive 31 and the cylinder driver 32 for rising clinching mould I 4 and clinching mould II 5；
The tops of clinching mould I 4 are provided with groove 43, and the cylinder drive 31 is connected by groove 43 and the activities of clinching mould I 4
Connect；After clinching mould I 4 is flexibly connected by using groove 43 with cylinder drive 31, even if the cylinder drive of one end
31 break down or postpone it is abnormal move downward work, will not also pull have influence on the other end cylinder drive 31 it is normal
Running, such cylinder drive 31 for being designed to effectively avoid both ends interfere with each other and greatly reduced loss.
Because clinching mould I 4 and clinching mould II 5 can be buckled on the side of the downward punching press pre-bending metal of clinching shaped platform 2,
Cause to influence processing effect so that downward stamping press can be produced and be likely to result in the run-off the straight imbalance of clinching shaped platform 2, be
The balance of clinching shaped platform 2 is kept, therefore the frame is additionally provided with the fixed mount deduction for fixing clinching shaped platform 2
Structure 7, the fixed mount buckle mechanism 7 are at least buckled 71 and are buckled 71 device of rotation driving 72 being opened and closed for bogie and formed by frame,
The device of rotation driving 72 is provided with transmission latch 73, and the frame buckles 71 one end being connected with device of rotation driving 72 and is provided with gear
74 are flexibly connected with transmission latch 73, and its other end is flexibly connected with clinching shaped platform 2.So as to pass through fixed mount buckle mechanism 7
The snapping of clinching shaped platform 2 is fixed, ensure that the balance of clinching shaped platform 2.
Claims (10)
1. detain bone machine, it is characterised in that：Including frame, and it is installed on the clinching mechanism of frame（1）, clinching shaped platform（2）
And drive mechanism（3）；The clinching mechanism（1）With clinching shaped platform（2）It is vertically setting up and down；The clinching mechanism
（1）With clinching shaped platform（2）At least one and drive mechanism（3）It is connected.
2. button bone machine according to claim 1, it is characterised in that：The clinching mechanism（1）Including clinching mould I（4）With
Clinching mould II（5）, the clinching mould I（4）Provided with left projection mould（41）With right groove mould（42）, the left projection mould
Tool（41）With right groove mould（42）Between be slidably fitted with clinching mould II（5）, the clinching mould II（5）Both sides are set respectively
Have and left projection mould（41）The left groove mould to match（51）, and with right groove mould（42）The right projection mould to match
Tool（52）；The left projection mould（41）With left groove mould（51）Between provided with a left side be fastened as die cavity, the right groove mould
（42）With right projection mould（52）Between provided with the right side be fastened as die cavity；The clinching mould I（4）With clinching mould II（5）It is relatively living
Dynamic motion.
3. button bone machine according to claim 2, it is characterised in that：The clinching mould I（4）With clinching mould II（5）Point
Not and drive mechanism（3）It is flexibly connected.
4. button bone machine according to claim 3, it is characterised in that：The drive mechanism（3）Including for declining clinching mould
Has I（4）With clinching mould II（5）Cylinder drive（31）With for rising clinching mould I（4）With clinching mould II（5）
Cylinder driver（32）；The clinching mould I（4）Top is provided with groove（43）, the cylinder drive（31）Pass through
Groove（43）With clinching mould I（4）It is flexibly connected；The cylinder driver（32）With clinching mould II（5）It is connected.
5. button bone machine according to claim 4, it is characterised in that：The clinching mould I（4）Both ends are connected with for balancing
The guide pillar of guiding（6）, the clinching mould I（4）Pass through guide pillar（6）It is flexibly connected with frame.
6. button bone machine according to claim 2, it is characterised in that：The clinching shaped platform（2）It is equiped with projection（21）,
The projection（21）Provided with arc surface（24）；The clinching mould II（5）With projection（21）With respect to mobilizing exercises, the clinching mould
Has II（5）With projection（21）Between formed clinching forming cavity.
7. button bone machine according to claim 1, it is characterised in that：The frame is additionally provided with for fixing clinching shaped platform
（2）Fixed mount buckle mechanism（7）, the fixed mount buckle mechanism（7）At least buckled by frame（71）And for bogie button（71）Open
The device of rotation driving closed（72）Composition, the device of rotation driving（72）Provided with transmission latch（73）, the frame buckles（71）With
Device of rotation driving（72）One end of connection is provided with gear（74）With being driven latch（73）Be flexibly connected, its other end and clinching into
Type platform（2）It is flexibly connected.
8. button bone machine according to claim 7, it is characterised in that：The clinching shaped platform（2）In cylinder, the pressure
Buckle forming platform（2）One end is connected with frame, and the other end is provided with clamping block（22）；The frame is buckled（71）Pass through clamping block（22）With
Clinching shaped platform（2）Active buckle.
9. button bone machine according to claim 8, it is characterised in that：The clinching shaped platform（2）Both sides are provided with anti-clip slot
（23）.
A kind of 10. processing method of the button bone machine described in usage right requirement 1, it is characterised in that：Workpiece both ends are placed respectively
In clinching mechanism（1）On, start drive mechanism（3）Drive clinching mechanism（1）With clinching shaped platform（2）A punching press is carried out to make
With so that workpiece both ends form left buckle and buckled with right；Then left button and right button fastening are placed on clinching shaped platform（2）, pressure
Buckle mechanism（1）With clinching shaped platform（2）Again in drive mechanism（3）Lower progress punching press effect is driven, so that workpiece both ends
Left button withhold conjunction with the right side and link together, so as to complete to detain bone manufacturing procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576220.2A CN107377805A (en) | 2017-07-14 | 2017-07-14 | Detain bone machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576220.2A CN107377805A (en) | 2017-07-14 | 2017-07-14 | Detain bone machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107377805A true CN107377805A (en) | 2017-11-24 |
Family
ID=60339704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576220.2A Pending CN107377805A (en) | 2017-07-14 | 2017-07-14 | Detain bone machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107377805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620490A (en) * | 2018-06-29 | 2018-10-09 | 东莞市八方自动化科技有限公司 | A kind of button bone machine plays side mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06218804A (en) * | 1993-01-26 | 1994-08-09 | Nanba Press Kogyo Kk | Opening/closing device for three-force type mold |
| CN202037813U (en) * | 2010-12-22 | 2011-11-16 | 海尔集团公司 | Rotary core-pulling mechanism for injection mould |
| CN103552180A (en) * | 2013-11-05 | 2014-02-05 | 天津国丰模具有限公司 | Mould opening insurance system |
| CN103691832A (en) * | 2013-12-31 | 2014-04-02 | 东莞市铁生辉制罐有限公司 | Full-automatic food can production device |
| CN103878258A (en) * | 2012-12-19 | 2014-06-25 | 钟春雷 | Fastening device |
| CN206912113U (en) * | 2017-07-14 | 2018-01-23 | 广东鸿业机械有限公司 | Detain bone machine |
-
2017
- 2017-07-14 CN CN201710576220.2A patent/CN107377805A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06218804A (en) * | 1993-01-26 | 1994-08-09 | Nanba Press Kogyo Kk | Opening/closing device for three-force type mold |
| CN202037813U (en) * | 2010-12-22 | 2011-11-16 | 海尔集团公司 | Rotary core-pulling mechanism for injection mould |
| CN103878258A (en) * | 2012-12-19 | 2014-06-25 | 钟春雷 | Fastening device |
| CN103552180A (en) * | 2013-11-05 | 2014-02-05 | 天津国丰模具有限公司 | Mould opening insurance system |
| CN103691832A (en) * | 2013-12-31 | 2014-04-02 | 东莞市铁生辉制罐有限公司 | Full-automatic food can production device |
| CN206912113U (en) * | 2017-07-14 | 2018-01-23 | 广东鸿业机械有限公司 | Detain bone machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620490A (en) * | 2018-06-29 | 2018-10-09 | 东莞市八方自动化科技有限公司 | A kind of button bone machine plays side mold |
| CN108620490B (en) * | 2018-06-29 | 2024-02-23 | 东莞市八方自动化科技有限公司 | Edge punching die of bone buckling machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171124 |