CN108263018A - Has the punching machine of automatic adjustable balance device - Google Patents
Has the punching machine of automatic adjustable balance device Download PDFInfo
- Publication number
- CN108263018A CN108263018A CN201710001542.4A CN201710001542A CN108263018A CN 108263018 A CN108263018 A CN 108263018A CN 201710001542 A CN201710001542 A CN 201710001542A CN 108263018 A CN108263018 A CN 108263018A
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- machine interface
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- 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.)
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- 238000004080 punching Methods 0.000 title claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000004260 weight control Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000027950 fever generation Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0064—Counterbalancing means for movable press elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The present invention discloses a kind of punching machine for having automatic adjustable balance device,It is mainly by engine base,Sliding block group,Connecting rod,Bent axle,Close copper,Driving unit,Automatic adjustable balance device,And human-machine interface unit is formed,The present invention mainly builds a plurality of mold models in advance in the database of the human-machine interface unit,And the weight of corresponding each mold model,And it is for a standard module model to enable a wherein mold model,When the model of the mold standard module model for inputting the human-machine interface unit,The pressure control unit makes the body of rod of the balancing unit in first position,The bent axle is contacted with closing copper in state the most stable at this time,And when the model of the mold non-standard mold model for inputting the human-machine interface unit,The human-machine interface unit controls the pressure control unit according to the difference of second weight and the first weight,The body of rod of the balancing unit is made to be maintained at the first position,Make the bent axle and the contact best results for closing copper the most steady,Achieve the purpose that punching machine is in optimum Working.
Description
Technical field
The present invention relates to the balancer of punching machine, more particularly to a kind of punching machine for having automatic adjustable balance device.
Background technology
As shown in fig.1, for a kind of existing punching machine 10 for having balancer, comprising：Engine base 11, one can move back and forth up and down to
It is set to the sliding block group 12 of the engine base 11, a bent axle 13, one connects the bent axle 13 and 14 and one power of connecting rod of the sliding block group 12
Connect the driving unit (not showing on figure) of the bent axle 13.The bent axle 13 is driven to rotate by the driving unit, you can to drive this
Sliding block group 12 drives the mold 15 to move back and forth up and down and then carries out stamping press to materials and parts.
In general, 14 upside of connecting rod is equipped with lateral through-hole 141, bent axle 13 is rotated across through-hole 141 with connecting rod 14
Connection, in order to reduce frictional force, the hole wall of the through-hole 141 of connecting rod 14, which is equipped with, closes copper 16, and connecting rod 14 is by closing copper 16 and bent axle
13 contacts, due to the weight relationships of 12 grade of sliding block group, the contact surface of downside of the bent axle 13 with closing copper 16 can there are certain gap,
When there is load effect, which moves downwards and vibration or noise occurs, and in order to avoid the above situation and makes sliding block group
12nd, mold 15, connecting rod 14 and bent axle 13 weight balancing, make its stable movement, be round and smooth, punching machine is additionally provided with two balancers 17,
Two balancers 17 are respectively arranged on the left and right sides of engine base 11, and common balancer 17 is oil hydraulic cylinder or pneumatic cylinder, and two flat
The upside respectively with sliding block group 12 of the body of rod 171 of weighing apparatus 17 is connect, and overcomes sliding block group 12, mould by the pulling force of balancer 17
The gravity of tool 15, connecting rod 14 and load makes bent axle 13 be contacted steadily with closing copper 16.
In addition, punching machine is typically provided punching machine display screen (not showing on figure), for showing, setting every operation ginseng of punching machine
Number, but this punching machine also has the following disadvantages：Punching machine commissioning staff is to estimate sliding block according to the theoretical value that designer provides
The weight of 12, mold 15, connecting rod 14 and bent axle 13 is organized to set the output of balancer 17 or even sometimes be passed through only according to individual
Test and the output of the motion conditions sets itself of sliding block group 12 adjustment balancer 17, the weight of theoretical calculation often with actually have compared with
Big to come in and go out, the personal experience without same commissioning staff is different, and often setting value difference is larger, and during more mold exchange 15, may
Forget the output of balancer 17 to be readjusted or since limited experience can not be adjusted correctly, above-mentioned several situations may
The output of balancer 17 is caused to set inaccuracy, the junction local strength overload of conjunction copper 16 and bent axle 13 can be made, make conjunction
Copper 16 is easily worn away；Make conjunction copper 16 and 13 local gap of bent axle too small, lead to phenomenon of generating heat or even kill；Local pyrexia can generate
Additional energy expenditure, the input power for making main motor is insufficient, influences the precision of stamping products.
Therefore how to develop a kind of punching machine for having automatic adjustable balance device, it is the present invention that can solve drawbacks described above
Motives in writing.
Invention content
The purpose of the present invention is to provide a kind of punching machines for having automatic adjustable balance device, mainly make the bent axle with closing connecing for copper
Best results are touched, punching machine is allowed to be in optimum Working.
In order to reach foregoing purpose, according to the present invention it is provided it is a kind of have automatic adjustable balance device punching machine, suitable for band
A dynamic mold upper and lower displacement, the punching machine of the tool automatic adjustable balance device include：One engine base；One sliding block group, can up and down reciprocatingly move
It is set to the engine base dynamicly, and can alternatively connect the mold；One connecting rod, connection drive the sliding block group；One bent axle, Neng Gouzhuan
It is set in the connecting rod dynamicly, to drive connecting rod start；One closes copper, is located between the bent axle and the connecting rod；It is characterized in that：
The punching machine further includes an automatic adjustable balance device and a human-machine interface unit, wherein：The automatic adjustable balance device, packet
Two balancing units, a pneumatic circuit and a pressure control unit are included, wherein：Two balancing units are respectively arranged on the engine base two
Side, and respectively there is an ontology and a body of rod, wherein each ontology is to be installed in the engine base both sides respectively, each body of rod is can be automatic
The ontology is telescopically located at, and the bar socket part of the sliding block group is driven with a connection；The pneumatic circuit connects the ontology；The pressure
Power control unit is configured in the pneumatic circuit and controls pressure in the pneumatic circuit, and the body of rod of the balancing unit is made to stretch position
It moves；The human-machine interface unit is electrically connected the pressure control unit and with a database, and the database is at least with a standard
Mold model, one correspond to the first weight of the standard module model, a non-standard mold model and one correspond to the non-standard mold
It model and varies in weight in the second weight of first weight, when inputting the model of the mold of the human-machine interface unit mark
When quasi-mode has model, the human-machine interface unit is according to first Weight control pressure control unit, the pressure control unit control
The pressure in the pneumatic circuit is made, makes the body of rod of the balancing unit in a first position, it should when input the human-machine interface unit
During the model of the mold non-standard mold model, the human-machine interface unit is according to the difference control of second weight and the first weight
The pressure control unit is made, which controls the pressure in the pneumatic circuit, keeps the body of rod of the balancing unit
In the first position.
Preferably, wherein described each balancing unit is for oil hydraulic cylinder.
Preferably, the ontology of wherein described each balancing unit has that an air pressure space, one communicate with the air pressure space
One air pressure entrance and a second air pressure entrance communicated with the air pressure space, the body of rod can be set with displacement with more one
Piston portion in the air pressure space and between the first, second air pressure entrance, the pneumatic circuit connect the ontology
First, second air pressure entrance.
Accordingly, the present invention mainly by built in advance in the database of the human-machine interface unit a plurality of mold models and
The weight of corresponding each mold model, and it is for a standard module model, when inputting the man-machine interface list to enable a wherein mold model
During the model of mold standard module model of member, the human-machine interface unit is according to the first Weight control pressure control
Unit, the pressure control unit control the pressure in the pneumatic circuit, make the body of rod of the balancing unit in a first position, at this time
The bent axle contact with closing copper in state the most stable, and this is nonstandard when the model of the mold of the input human-machine interface unit
When quasi-mode has model, which controls the pressure control unit according to the difference of second weight and the first weight,
The pressure control unit controls the pressure in the pneumatic circuit, and the body of rod of the balancing unit is made to be maintained at the first position, allows this
Bent axle and the contact best results for closing copper are the most steady, achieve the purpose that punching machine is in optimum Working.
It is related the present invention to reach above-mentioned purpose, used technology, means and other the effect of, hereby lift one preferably it is feasible
Embodiment simultaneously coordinates schema to be described in detail as after.
Description of the drawings
Fig. 1 is the structure diagram of the punching machine of known tool balancer.
Fig. 2 is the schematic diagram of the embodiment of the present invention, and display sliding block group sets the first mold, and the body of rod of balancing unit is the
The state of one position.
Fig. 3 is the schematic diagram of the embodiment of the present invention, shows the specification table of various mold models and its corresponding weight.
Fig. 4 is the schematic diagram of the embodiment of the present invention, and display sliding block group sets the second mold, and the body of rod of balancing unit is the
The state of two positions.
Fig. 5 is the schematic diagram of the embodiment of the present invention, and display sliding block group sets the second mold, and the body of rod of balancing unit is the
The state of one position.
Sign flag explanation in attached drawing：
11 be engine base；12 be sliding block group；13 be bent axle；14 be connecting rod；141 be through-hole；15 be mold；16 is close copper；17
For balancer；171 be the body of rod；21 be engine base；22 be sliding block group；23 be connecting rod；24 be bent axle；25 is close copper；30 is single for balance
Member；31 be ontology；311 be air pressure space；312 be the first air pressure entrance；313 be the second air pressure entrance；32 be the body of rod；
321 be bar socket part；322 be piston portion；40 be pneumatic circuit；50 be pressure control unit；60 be human-machine interface unit；61 be number
According to library；611 be standard module model；612 be the first weight；613 be non-standard mold model；614 be the second weight；90 be gas
Potential source；100th, 200 be mold.
Specific embodiment
Clear, complete description is carried out to technical scheme of the present invention below in conjunction with attached drawing, it is clear that described implementation
Example is the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiments obtained under the premise of creative work is not made belong to the model that the present invention protects
It encloses.
It please refers to shown in Fig. 2 to Fig. 4, the embodiment of the present invention provides a kind of punching machine for having automatic adjustable balance device, is applicable in
In driving 100 upper and lower displacement of a mold, the punching machine of the tool automatic adjustable balance device is mainly by an engine base 21, a sliding block group 22, one
Connecting rod 23, a bent axle 24, one close copper 25, an automatic adjustable balance device and a human-machine interface unit 60 and are formed, wherein：
The sliding block group 22 can move back and forth up and down to and be set to the engine base 21；In the present embodiment, under the sliding block group 22
End face is provided with the mold 100, and it is 0.5 (tons), and mold model M01 is to enable the model M01 of the mold 100, weight
One standard module model, weight 0.5 (tons) are one first weight.
The connecting rod 23, connection drive the sliding block group 22.
The bent axle 24 can rotationally be set in the connecting rod 23, to drive 23 start of connecting rod.
The conjunction copper 25 is located between the bent axle 24 and the connecting rod 23.
Due to the engine base 21, sliding block group 22, connecting rod 23, bent axle 24 and to close copper 25 etc. be all known component, and its configuration and
Make flowing mode all with known identical, also the creation emphasis of non-present invention, therefore the detailed construction for such component and start side
Formula is no longer described in detail.
The automatic adjustable balance device, including two balancing units 30, a pneumatic circuit 40 and a pressure control unit 50,
In：
Two balancing units 30 are respectively arranged on 21 both sides of engine base, and respectively have an ontology 31 and a body of rod 32, wherein
Each ontology 31 is to be installed in 21 both sides of engine base respectively, and each body of rod 32 is can be located to automatic telescopic the ontology 31, and have
One connection drives the bar socket part 321 of the sliding block group 22；In the present embodiment, each balancing unit 30 is oil hydraulic cylinder.Each ontology 31 has
The the first air pressure entrance 312 and one and 311 phase of air pressure space that one air pressure space 311, one is communicated with the air pressure space 311
The second logical air pressure entrance 313, the body of rod 32 can be located at displacement in the air pressure space 311 with more one and positioned at this
First, the piston portion 322 between the second air pressure entrance 312,313.
The pneumatic circuit 40, connects first, second air pressure entrance 312,313 of the ontology 31, and is connected to an air pressure
Source 90.
The pressure control unit 50 is configured in the pneumatic circuit 40 and controls pressure in the pneumatic circuit 40, makes this flat
32 telescopic displacement of the body of rod of weighing apparatus unit 30.
The human-machine interface unit 60 is electrically connected the pressure control unit 50 and with a database 61, the database 61
At least there is a standard module model 611, one to correspond to the first weight 612 of the standard module model 611, a non-standard mould type
It numbers 613 and one the correspondence non-standard mold model 613 and varies in weight in the second weight 614 of first weight 612, this reality
It applies in example, as shown in fig.3, there are five non-standard mold model 613 tools, respectively M02, M03, M04, M05 and M06, and
Second weight 614 of the corresponding non-standard mold model 613 is respectively 0.9 (tons), 1.1 (tons), 1.5 (tons), 0.4
(tons) and 0.35 (tons).When the model of the mold 100 standard module model 611 for inputting the human-machine interface unit 60
When, which controls the pressure control unit 50 according to first weight 612, which controls
Pressure in the pneumatic circuit 40 makes the body of rod 32 of the balancing unit 30 in a first position, when inputting the human-machine interface unit
During the model of the 60 mold 200 non-standard mold model 613, the human-machine interface unit 60 is according to second weight 614
The pressure control unit 50 is controlled with the difference of the first weight 612, which controls in the pneumatic circuit 40
Pressure makes the body of rod 32 of the balancing unit 30 be maintained at the first position.
The above is the structure of each main member of the embodiment of the present invention and its configuration explanation.As for the start of the present invention
Mode and effect are described as follows.
The model M01 for shown in Fig. 2, Fig. 3, enabling the mold 100 set by 22 lower face of sliding block group, weight are referred to again
For 0.5 (tons), and mold model M01 is a standard module model 611, weight 0.5 (tons) is the first weight 612.This
When, the model M01 of the mold 100 is inputted into the human-machine interface unit 60, the human-machine interface unit 60 is according to mold model M01
Corresponding weight 0.5 (tons) controls the pressure control unit 50, and the pressure control unit 50 is allowed to control the pneumatic circuit 40
Interior pressure makes the body of rod 32 of the balancing unit 30 in a first position, and enables the body of rod 32 of the balancing unit 30 at first
When putting, the pulling force of each balancing unit 30 is enabled to be overcome sliding block group 22, mold 100, connecting rod 23 and the gravity of load, makes bent axle 24
It is contacted with closing copper 25 in state the most stable.
As shown in fig.4, when 22 lower face of sliding block group replacement is arranged to the mold 200 of mold model M02, model
Second weight 0.9 (tons) of the mold 200 of M02 is different from the first weight 0.5 (tons) of the mold 100 of model M01, this
In embodiment the weight 0.9 (tons) of model M02 molds 200 more than model M01 molds 100 weight 0.5 (tons), because
The body of rod 32 of this each balancing unit 30 declines the second position (Fig. 4 deliberately lavishes praise on oneself this second position herein, to be readily understood by).
Again refering to shown in Fig. 3, Fig. 5, the model M02 of the mold 200 is inputted into the human-machine interface unit 60, the man-machine interface
Weight 0.9 (tons) of the unit 60 according to corresponding to mold model M02 and the weight 0.5 corresponding to mold model M01
(tons) difference value and control the pressure control unit 50, the pressure control unit 50 is allowed to control the pressure in the pneumatic circuit 40
Power makes the body of rod 32 of the balancing unit 30 rise to first position in the second position of script, and is maintained at the first position,
It uses and the bent axle 24 is allowed to be maintained at best state the most stable with closing the contact effect of copper 25, reach punching machine and be in best effort
The purpose of state.
Similarly when the sliding block group lower face, which is replaced, is arranged to the mold of mold model M06, the mold of model M06
First weight 0.5 (tons) of mold of second weight 0.35 (tons) less than model M01, therefore the body of rod of each balancing unit
Then rise in the second position.
The model M06 of the mold is inputted into the human-machine interface unit, the human-machine interface unit is then according to mold model M06
The difference value of corresponding weight 0.35 (tons) and the weight 0.5 (tons) corresponding to mold model M01 and control the pressure
Control unit allows the pressure control unit to control the pressure in the pneumatic circuit, makes the body of rod of the balancing unit the of script
Two positions drop to first position, and are maintained at the first position, use and the bent axle is allowed to be maintained at closing the contact effect of copper
Best state the most stable, achievees the purpose that punching machine is in optimum Working.
What deserves to be explained is the pressure control unit 50 controls the pressure in the pneumatic circuit 40, make the balancing unit 30
The body of rod 32 rise (or decline) by the second position to the displacement of first position, mainly according to inputting the man-machine interface list
Difference value between the weight of non-standard mold model of member 60 and the weight of standard module model is determined.
The present invention mainly by the database of the human-machine interface unit building a plurality of mold models and corresponding to each in advance
The weight of mold model, and enable a wherein mold model be for a standard module model, should when input the human-machine interface unit
During the model of the mold standard module model, the human-machine interface unit according to first Weight control pressure control unit,
The pressure control unit controls the pressure in the pneumatic circuit, makes the body of rod of the balancing unit in a first position, at this time the song
Axis contact with closing copper in state the most stable, and when the model of the mold of the input human-machine interface unit nonstandard quasi-mode
When having model, which controls the pressure control unit according to the difference of second weight and the first weight, the pressure
Power control unit controls the pressure in the pneumatic circuit, and the body of rod of the balancing unit is made to be maintained at the first position, allows the bent axle
It is the most steady with the contact best results for closing copper, achieve the purpose that punching machine is in optimum Working.
In conclusion the various embodiments described above and attached drawing are only presently preferred embodiments of the present invention, not limiting this
The protection domain of invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done all should
Comprising within the scope of the present invention.
Claims (3)
1. a kind of punching machine for having automatic adjustable balance device, suitable for driving a mold upper and lower displacement, the tool automatic adjustable balance device
Punching machine include：
One engine base；One sliding block group can move back and forth up and down to and be set to the engine base, and can alternatively connect the mold；One
Connecting rod, connection drive the sliding block group；One bent axle can rotationally be set in the connecting rod, to drive connecting rod start；One closes copper, if
Between the bent axle and the connecting rod；It is characterized in that：
The punching machine further includes an automatic adjustable balance device and a human-machine interface unit, wherein：
The automatic adjustable balance device, including two balancing units, a pneumatic circuit and a pressure control unit, wherein：
Two balancing unit is respectively arranged on the engine base both sides, and respectively has an ontology and a body of rod, wherein each ontology is point
It is not installed in the engine base both sides, each body of rod is can be located to automatic telescopic the ontology, and drives the sliding block group with a connection
Bar socket part；
The pneumatic circuit connects the ontology；
The pressure control unit is configured in the pneumatic circuit and controls pressure in the pneumatic circuit, makes the bar of the balancing unit
Body telescopic displacement；
The human-machine interface unit is electrically connected the pressure control unit and with a database, and the database is at least with a mark
Quasi-mode tool model, one correspond to the first weight of the standard module model, a non-standard mold model and one correspond to the nonstandard quasi-mode
Have model and vary in weight in the second weight of first weight, when the model for the mold for inputting the human-machine interface unit should
During standard module model, the human-machine interface unit is according to first Weight control pressure control unit, the pressure control unit
The pressure in the pneumatic circuit is controlled, makes the body of rod of the balancing unit in a first position, when inputting the human-machine interface unit
During the model of the mold non-standard mold model, the human-machine interface unit is according to second weight and the difference of the first weight
The pressure control unit is controlled, which controls the pressure in the pneumatic circuit, protects the body of rod of the balancing unit
It holds in the first position.
2. the punching machine of tool automatic adjustable balance device as described in claim 1, which is characterized in that the balancing unit is oil pressure
Cylinder.
3. the punching machine of tool automatic adjustable balance device as described in claim 1, which is characterized in that the ontology tool of the balancing unit
There are an air pressure space, a first air pressure entrance communicated with the air pressure space and second gas communicated with the air pressure space
Entrance is extruded, which can be located in the air pressure space with more one and with displacement positioned at the first, second air pressure entrance
Between piston portion, which connects first, second air pressure entrance of the ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001542.4A CN108263018A (en) | 2017-01-03 | 2017-01-03 | Has the punching machine of automatic adjustable balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001542.4A CN108263018A (en) | 2017-01-03 | 2017-01-03 | Has the punching machine of automatic adjustable balance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108263018A true CN108263018A (en) | 2018-07-10 |
Family
ID=62771420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710001542.4A Pending CN108263018A (en) | 2017-01-03 | 2017-01-03 | Has the punching machine of automatic adjustable balance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108263018A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130008325A1 (en) * | 2011-07-08 | 2013-01-10 | Yu-Ting Lin | Multi-linkage press |
| TWM460770U (en) * | 2013-05-13 | 2013-09-01 | Yu Prec Ind Co Ltd Ing | Multi-point balanced press mechanism |
| CN104401022A (en) * | 2014-11-28 | 2015-03-11 | 新昌县大雄锻造有限公司 | Punch press |
| CN106079512A (en) * | 2015-04-28 | 2016-11-09 | 日本电产新宝株式会社 | Decompressor |
-
2017
- 2017-01-03 CN CN201710001542.4A patent/CN108263018A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130008325A1 (en) * | 2011-07-08 | 2013-01-10 | Yu-Ting Lin | Multi-linkage press |
| TWM460770U (en) * | 2013-05-13 | 2013-09-01 | Yu Prec Ind Co Ltd Ing | Multi-point balanced press mechanism |
| CN104401022A (en) * | 2014-11-28 | 2015-03-11 | 新昌县大雄锻造有限公司 | Punch press |
| CN106079512A (en) * | 2015-04-28 | 2016-11-09 | 日本电产新宝株式会社 | Decompressor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180710 |
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| WD01 | Invention patent application deemed withdrawn after publication |