CN113492547A - Toggle type punching machine - Google Patents
Toggle type punching machine Download PDFInfo
- Publication number
- CN113492547A CN113492547A CN202010195328.9A CN202010195328A CN113492547A CN 113492547 A CN113492547 A CN 113492547A CN 202010195328 A CN202010195328 A CN 202010195328A CN 113492547 A CN113492547 A CN 113492547A
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- CN
- China
- Prior art keywords
- link
- plunger
- ring portion
- eccentric
- toggle press
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
- B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The present invention relates to a toggle press, and more particularly, to a toggle press in which a load distribution of a driving part is uniform and stable power transmission is realized, and a plunger is coupled to a replaceable adjusting nut to realize consumable replacement. The toggle press according to an embodiment of the present invention is characterized in that the upper end of the upper link and the lower end of the lower link are rotatably connected to the upper link pin and the lower link pin, respectively, the lower end of the upper link, the upper end of the lower link, and one end of the connecting link are rotatably connected to the central link pin, respectively, the connecting link is composed of a link ring portion having one end connected to the central link pin, an eccentric ring portion having the other end connected to the eccentric member, and a rod portion connecting the link ring portion and the eccentric ring portion, the link ring portion is composed of a pair of first and second link ring portions having a symmetrical structure, and the eccentric ring portion is composed of a pair of second and second eccentric ring portions having a symmetrical structure.
Description
Technical Field
The present invention relates to a toggle press, and more particularly, to a toggle press in which a load distribution of a driving part is uniform and stable power transmission is realized, and a plunger is coupled to a replaceable adjusting nut to realize consumable replacement.
Background
In mechanical punches, toggle punches are generally suitable for precision compression machining, embossing, extrusion, forging, and the like because the upper die gently contacts the lower die for a long time when a product is punched.
A toggle press, also known as a toggle press, has a frame, a slide mounted on the frame and being liftable and lowerable, and a driving device for generating and applying a driving force to lift the slide.
The driving device is provided with a motor arranged on the frame, a flywheel connected with the motor through a belt, a connecting rod with one end connected to the flywheel and a connecting rod mechanism connected with the other end of the connecting rod.
The link mechanism is provided in an inner space of the frame corresponding to an upper side of the slider, and a motor, a flywheel, and the like are provided above or on a side of the link mechanism.
The conventional toggle press has a disadvantage in that the moving speed of the slide in the lowering process is slow, but the moving speed of the slide in the raising process is slow regardless of the molding quality, so that the overall working time is increased, and the productivity is lowered.
Further, the conventional toggle press has a disadvantage in that an excessively wide operating space is required for the operation of the connecting link and the link mechanism.
In addition, in the conventional operation structure of the connecting link and the eccentric mass of the toggle press, since the connecting link connected to the eccentric shaft is fastened only at one side, the fastening force by the connecting link is weak, and the power transmission is weakened due to the weakening of the fastening force of the connecting link connected to the eccentric shaft for a long time.
Further, according to the conventional toggle press, the crankless toggle mechanism including the upper link, the lower link, and the plunger which support the vertical reciprocation of the rod screw has a problem that the plunger needs to be replaced due to wear of the fastening portion of the rod screw and the plunger.
Disclosure of Invention
(technical problem to be solved)
The present invention has been made to solve the above problems, and an object of the present invention is to minimize an operation space for connecting a link and a link mechanism, thereby miniaturizing a press machine.
In addition, the present invention has an object to enhance the fastening force of the connecting link connected to the eccentric shaft in the operation structure of the connecting link and the eccentric mass to enhance the power transmission.
Further, the present invention is directed to a crankless toggle mechanism including an upper link, a lower link, and a plunger for supporting a vertical reciprocating movement of a rod screw, wherein an adjustment nut fastened between the plunger and the rod screw is used as a consumable without replacing the plunger, thereby solving the problem of troublesome replacement and saving economical cost.
Technical problems to be solved by the present invention are not limited to the above-mentioned problems, and other technical problems not mentioned can be clearly understood by those having ordinary skill in the art of the present invention through the following descriptions.
(means for solving the problems)
The toggle press according to an embodiment of the present invention for solving the above-mentioned problems is a toggle press which lifts and lowers a slider by a driving force applied by a motor as a driving means having a flywheel, a driving shaft, a gear portion, an eccentric member, a connecting link, an upper link and a lower link, and a rod screw, characterized in that an upper end of the upper link is rotatably connected to an upper link pin, a lower end of the lower link is rotatably connected to a lower link pin, a lower end of the upper link, an upper end of the lower link, and one end of the connecting link are rotatably connected to a central link pin, respectively, the connecting link is composed of a link ring portion having one end connected to the central link pin, an eccentric ring portion having the other end connected to the eccentric member, and a rod portion connecting the link ring portion and the eccentric ring portion, the link ring portion being composed of a pair of first and second link ring portions having a symmetrical structure, the eccentric ring part is composed of a pair of second and second eccentric ring parts with symmetrical structures.
Wherein a plunger vertically reciprocated by operation of the upper and lower links and a rod screw of a slider assembled to a lower portion of the plunger are fastened through an adjustment nut formed with a tap on an inner diameter side and fastened to a tap formed on an outer circumference of the rod screw, the adjustment nut has a body and a wing extended from the body, the wing abuts on a lower portion of the plunger and is fastened to the plunger by a bolt so as to be detachable.
Wherein a lower end portion of the plunger is formed in a concave shape, and the adjusting nut is formed in a convex shape so as to be combined with each other in a block shape.
The lower end of the upper connecting rod is composed of a pair of connecting parts, the upper end of the lower connecting rod is positioned between the pair of connecting parts, and the connecting rod ring part of the connecting rod is positioned on the outer side surfaces of the pair of connecting parts and is rotatably connected to the central connecting rod pin.
Wherein, through the operation of the said upper connecting rod, lower connecting rod and plunger, keep the balancing cylinder of the left and right equilibrium on the basis of the vertical reciprocating motion to connect to the upper end left and right sides of the said slide block separately.
(Effect of the invention)
According to the above-described configuration of the present invention, it is possible to enhance the fastening force of the connecting link connected to the eccentric shaft in the operation structure of the connecting link and the eccentric mass to enhance the power transmission.
In addition, in the crankless toggle mechanism composed of the upper connecting rod, the lower connecting rod and the plunger, the adjusting nut fastened between the plunger and the rod screw is used as a replacement part without replacing the plunger, so that the complexity of the replacement process is solved and the cost is saved.
Drawings
Fig. 1 is a front sectional view of the toggle press of the present invention.
Fig. 2 is a side cross-sectional view of a toggle press of the present invention.
Fig. 3 is a structural view of an upper link of the toggle press of the present invention.
Fig. 4 is a lower link structure view of the toggle press of the present invention.
Fig. 5 is a structural view of a Connecting Rod (Connecting Rod) of the toggle press according to the present invention.
Fig. 6 is a combined structure view of a Plunger (Plunger), a rod screw and an adjusting nut of the toggle press according to the present invention.
Reference numerals
100: toggle type press 102: frame structure
104: the slide block 106: electric motor
108: the link mechanism 110: connecting rod
112: upper link 114: lower connecting rod
116: rod screw 118: block fixing shaft
120: eccentric mass 122: eccentric component
124: the plunger 126: plunger guide
128: adjusting nut 128 a: main body
128 b: the wing 130: flange
132: worm shaft 134: worm wheel
136: the overload piston 138: overload cylinder
140: upper link pin 142: central connecting rod pin
144: lower link pin 146: balance cylinder
202. 302: body 204, 206, 208, 210, 304, 306: connecting part
402: stem 404, 404a, 404 b: connecting rod ring part
406. 406a, 406 b: eccentric ring part
Detailed Description
Hereinafter, the structure and the effect of the toggle press according to the present invention will be described with reference to the accompanying drawings.
Detailed description of specific embodiments illustrated in the accompanying drawings are to be understood in conjunction with the accompanying drawings, which are considered part of the entire specification. The description of directions or orientations is for convenience of explanation only and is not intended to limit the scope of the present invention in any way.
In particular, positional terms such as "lower, upper, horizontal, vertical, upper, lower, upward, downward, upper, lower" or derivatives thereof (e.g., "horizontal, downward, upward," etc.) should be understood with reference to the drawings and the associated description as described. In particular, these relative terms are for convenience of description only and do not require that the apparatus of the present invention be constructed or operated in a particular orientation.
Also, unless otherwise specified, terms such as "mounted, attached, connected, continuous, interconnected, and the like, which denote an interrelationship between elements, are used to denote a state in which respective elements are directly or indirectly attached, connected, or fixed, and it is to be understood that the terms include not only a movably attached, connected, fixed state, but also an immovable state.
In adding reference numerals to the respective components of the drawings, it should be noted that the same components are denoted by the same reference numerals as much as possible even though they are shown in different drawings. Also, in the description of the present invention, if it is determined that detailed description of related well-known components or functions may obscure the gist of the present invention, the detailed description is omitted.
Fig. 1 is a front sectional view of the toggle type press of the present invention, and fig. 2 is a side sectional view of the toggle type press of the present invention.
As shown in fig. 1 and 2, the outer shape of the toggle press 100 of the present invention is constituted by a frame 102 which is fastened to a bed which becomes a main shaft of the toggle press 100 to form an integral frame.
The toggle press of one embodiment of the present invention has a flywheel (not shown), a driving shaft, a pinion gear and a bull gear (not shown), a connecting link 110, upper and lower links 112 and 114, and a rod screw 116, so that the slider 104 is lifted and lowered by a driving force applied from the motor 106.
The frame 100 is formed in a substantially rectangular parallelepiped shape by plate members, and may include a die, a safety device for securing safety during operation, a control box, and the like.
The flywheel may be a heavy component that is connected to the motor by a belt to rotate, and has a structure in which a belt groove is formed on an outer circumferential surface of a disk-shaped body having a large diameter, and receives power to rotate via the belt having one side thereof hooked to the belt groove and the other side thereof hooked to a pulley of the motor.
The driving shaft is a component connected to the center of the flywheel to rotate, is formed in a circular bar shape, and is arranged along the front-rear direction of the frame 100.
The pinion gear is a gear coupled to the drive shaft to rotate, and the bull gear is a component engaged with the pinion gear to rotate, and is provided in the internal space of the frame 100.
The outer circumferential surface of the large gear forms a gear portion engaged with the small gear, having an eccentric member 122 connected to the connecting link 110.
The eccentric member 122 includes an eccentric mass 120, and a mass fixing shaft 118 may be directly formed at one side of the large gear.
The connecting link 110 is a component for converting the rotational force transmitted from the large gear into a parallel motion and transmitting the parallel motion to the link mechanism 108 (upper link 112, lower link 114).
The link mechanism 108 is fastened to the connecting link 110, is an assembly that directly applies a lifting force to the slider 104, and has an upper link 112 as a driving link connected to the other side of the connecting link 110 for angular movement and a lower link 114 as a lifting link connected between the upper link 112 and the slider 104.
One end of the upper link 112 is rotatably connected to an upper side and the other end is rotatably connected to an upper end of the lower link 114, and one end of the connecting link 110 is fastened to a connection portion of the upper link 112 and the lower link 114.
The lower end of the lower link 114 is connected to a Plunger (Plunger)124, and the Plunger 124 is linearly moved up and down by a Plunger guide 126 at a side portion.
The rod screw 116 is fastened to the inside of the plunger 124, and between the rod screw 116 and the plunger 124, an adjustment nut 128 is detachably coupled to the tap.
The lower end of the rod screw 116 is connected to the flange 130 and to the overload piston 136 and the overload cylinder 138.
In order to control the lowering speed of the lever screw 116, a worm shaft 132 as a speed-increasing and-decreasing gear means is fastened to a worm wheel 134.
In addition, although not shown in the drawings, the inside of the frame 100 may further have a clutch device and a brake coupled to or decoupled from the flywheel to restrict power transmission.
The toggle press of the present invention improves the mechanism of the drive transmission mechanism for transmitting the driving force to the slider 104, and is mainly technically characterized in that the structure of the link mechanism 108 and the connecting link 110 is improved, and the adjusting nut 128 is added to the fastening of the plunger 124 and the rod screw 116.
The link mechanism 108 includes: an upper link pin 140 to which the upper link 112 is rotatably fastened to an upper end of the upper link 112; a central link pin 142 rotatably fastened to the lower end of the upper link 112/the upper end of the lower link 114/the connecting link 110, respectively; and a lower link pin 144 rotatably fastened to a lower end of the lower link 114 at the lower link 114.
Balance cylinders 148 for maintaining the left and right balance of the slider 104 are connected to the left and right sides of the upper end of the slider 104, which vertically reciprocates by the operation of the upper link 112 and the lower link 114.
Fig. 3 is a structural view of an upper link of the toggle press of the present invention.
Fig. 3 a is a front view of the upper link 112, and B is a plan view of the upper link 112.
As shown in fig. 3, the upper link 112 of the toggle press of the present invention may be 'H' -shaped.
The upper link 112 may include a main body 202, and a pair of coupling parts (first, second, third, and fourth coupling parts 204, 206, 208, 210) are respectively included at an upper end to which the upper link pin 140 is fastened and a lower end to which the central link pin 142 is fastened.
The lower link 114 is inserted between the third and fourth connecting portions 208 and 210 at the lower end of the upper link 112, and the connecting link 110 is positioned at both side surfaces of the third and fourth connecting portions 208 and 210 at the lower end of the upper link 112 and rotatably fastened by the central link pin 142, respectively.
Fig. 4 is a lower link structure view of the toggle press of the present invention.
Fig. 4a is a front view of the lower link 114, and B is a plan view of the lower link 114.
As shown in fig. 4, the lower link 114 of the toggle press of the present invention may have an 'I' shape.
The lower link 114 forms first and second connecting portions 304, 306 at the fastened upper end of the central link pin 142 and the fastened lower end of the lower link pin 144, respectively, and includes a body 302 connecting the first and second connecting portions 304, 306.
The lower link 114 is inserted between the third and fourth connecting portions 208 and 210 at the lower end of the upper link 112, and the connecting link 110 is positioned at both side surfaces of the third and fourth connecting portions 208 and 210 at the lower end of the upper link 112 and rotatably fastened by the central link pin 142, respectively.
Fig. 5 is a structural view of a Connecting Rod (Connecting Rod) of the toggle press according to the present invention.
Fig. 5 a is a side view of connecting link 110, and B is a plan view of connecting link 110.
As shown in fig. 5, the connecting link 110 may include: a linear rod portion 402; a small-diameter link ring portion 404 formed at one end side of the rod portion 402 and connected to the upper link 112 and the lower link 114 by the center link pin 81; and an eccentric ring portion 406 having a large diameter formed on the other end side of the rod portion 402 and connected to the eccentric member 122 side.
The link ring portion 404 is formed in a cap shape in a plan view B, is fastened to both side surfaces of the third and fourth connecting portions 208 and 210 of the upper link 112, and is constituted by a pair of a first link ring portion 404a and a second link ring portion 404B.
The eccentric ring portion 406 is in the form of a pair of rings connected to each other, and is composed of a first eccentric ring portion 406a and a second eccentric ring portion 406 b.
The outer sides of the eccentric ring portion 406 between the first and second eccentric ring portions 406a and 406b are connected by a plurality of connecting portions 408 to reinforce mechanical strength.
The link ring portion 404 and the eccentric ring portion 406 are configured as a pair, which not only enhances strength to enhance fastening force with the eccentric mass, but also has an effect of enhancing mechanical strength to fatigue due to repeated eccentric rotation.
Fig. 6 is a combined structure view of a Plunger (Plunger), a rod screw and an adjusting nut of the toggle press according to the present invention.
Fig. 6a is a front sectional view showing the combination of the plunger, the rod screw, and the adjusting nut, and B is a side sectional view showing the combination of the plunger, the rod screw, and the adjusting nut.
As shown in fig. 6, the plunger 124 reciprocates linearly up and down with reference to the plunger guide 126, and the rod screw 116 fastened to the plunger 124 reciprocates linearly up and down in conjunction with the plunger 124 to drive the slider 104.
In a large-capacity punch press apparatus, since the fastening of the plunger 124 and the rod screw 116 is worn or damaged at the fastening portion due to the fatigue caused by the reciprocation for a long time, the plunger 124 needs to be frequently replaced.
Since the replacement of the plunger 124 is premised on the removal of the slider 104, the rod screw 116, the plunger guide 126, and the like, the replacement leads to an increase in time and cost, thereby causing a loss in tact time of the press.
Thus, the present invention solves the above problems using the adjustment nut 128.
One embodiment of the present invention provides an adjustment nut 128 between the plunger 124 and the rod screw 116.
The adjusting nut 128 includes a body 128a and wings 128b extended from the end of the body 128a to both sides, and is formed in a tubular shape having an inner diameter, and the inner diameter side is formed with a female tap.
The outer periphery of the stem screw 116 forms a male tap that engages a female tap of the adjustment nut 128.
The adjustment nut 128 and the rod screw 116 are fixed by tap in a state where the rod screw 116 is positioned inside the plunger 124, and are fixed to the plunger 124 by a plurality of bolts 502 through the through holes of the wings 128 b.
The lower end portion of the plunger 124 has a groove capable of being coupled with the adjustment nut 128, thereby forming a structure in which the body 128a of the adjustment nut 128 is coupled to the groove.
For example, the lower end portion of the plunger 124 is formed in a concave shape, and the adjustment nut 128 is formed in a convex shape, so as to be combined into a block shape, and fastened by a bolt.
The friction between the plunger 124 and the rod screw 116 is created by the adjustment nut 128, and over time, the press can be serviced by replacing only the adjustment nut 128.
The features, structures, effects, and the like described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to one embodiment. Further, features, structures, effects, and the like shown in the respective embodiments may be combined or modified in combination with other embodiments by a person having ordinary skill in the art to which the embodiments belong. Therefore, it should be construed that the matters relating to such combination or modification are included in the scope of the present invention.
Further, the above description has been mainly given by way of example, but this is by no means intended to limit the present invention, and a person skilled in the art to which the present invention pertains can implement various modifications and applications not shown above without departing from the essential characteristics of the present embodiment. For example, the respective components specifically illustrated in the embodiments may be modified and applied. And differences relating to such modifications and applications shall be included in the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. A toggle press having a driving device comprising a flywheel, a driving shaft, a gear portion, an eccentric member, a connecting link, upper and lower links, and a lever screw, and configured to raise and lower a slide by a driving force applied from a motor,
the upper end of the upper link is rotatably connected to an upper link pin,
the lower end of the lower link is rotatably connected to a lower link pin,
the lower end of the upper link, the upper end of the lower link, and one end of the connecting link are rotatably connected to a central link pin, respectively,
the connecting link is composed of a link ring portion having one end connected to the central link pin, an eccentric ring portion having the other end connected to the eccentric member, and a rod portion connecting the link ring portion and the eccentric ring portion,
the link ring portion is composed of a pair of first and second link ring portions having a symmetrical structure, and the eccentric ring portion is composed of a pair of first and second eccentric ring portions having a symmetrical structure.
2. The toggle press of claim 1,
a plunger vertically reciprocated by the operation of the upper and lower links and a rod screw of a slider fitted to a lower portion of the plunger are fastened by an adjustment nut,
the adjusting nut is formed with a tap at an inner diameter side to be fastened to a tap formed at an outer circumference of the shank screw,
the adjusting nut has a body and a wing extended from the body, the wing abutting a lower portion of the plunger to be fastened to the plunger by a bolt so as to be detachable.
3. The toggle press of claim 2,
the lower end portion of the plunger is formed in a concave shape and the adjusting nut is formed in a convex shape so as to be combined with each other in a block shape.
4. The toggle press of claim 1,
the lower end of the upper connecting rod is composed of a pair of connecting parts,
the upper end of the lower link is positioned between the pair of connecting parts, and the link ring part of the connecting link is positioned on the outer side surfaces of the pair of connecting parts and rotatably connected to the central link pin.
5. The toggle press of claim 1,
and balance cylinders which are kept in balance left and right based on vertical reciprocating motion through the operation of the upper connecting rod, the lower connecting rod and the plunger are respectively connected to the left and right sides of the upper end of the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195328.9A CN113492547A (en) | 2020-03-19 | 2020-03-19 | Toggle type punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195328.9A CN113492547A (en) | 2020-03-19 | 2020-03-19 | Toggle type punching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113492547A true CN113492547A (en) | 2021-10-12 |
Family
ID=77994292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010195328.9A Pending CN113492547A (en) | 2020-03-19 | 2020-03-19 | Toggle type punching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113492547A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103898A (en) * | 1994-10-04 | 1996-04-23 | Murata Mach Ltd | Abnormally detecting device for toggle type punch press |
| JPH11226786A (en) * | 1998-02-16 | 1999-08-24 | Ho Wen-Wei | Transmitting structure of ram for forging machine of press or the like |
| KR20110012056A (en) * | 2009-07-29 | 2011-02-09 | (주)우리프레스 | Preventing device stick phenomenon for slider of double knuckle press |
| US20110083568A1 (en) * | 2008-06-18 | 2011-04-14 | Fahrenbach Juergen | Direct drive for a press |
| CN203257661U (en) * | 2013-05-07 | 2013-10-30 | 姜堰市化肥有限责任公司 | Reciprocating pump plunger fixing device |
| CN104550601A (en) * | 2015-01-12 | 2015-04-29 | 顺德职业技术学院 | Double-toggle double-motor parallel-drive toggle rod mechanism and control method thereof |
| CN106863875A (en) * | 2017-03-29 | 2017-06-20 | 扬力集团股份有限公司 | A kind of stroke of a press and height of packing compact governor motion |
| CN108015141A (en) * | 2017-12-12 | 2018-05-11 | 嘉兴大道锻造技术咨询有限公司 | One kind supercharging toggle punching machine |
| CN108527907A (en) * | 2018-06-02 | 2018-09-14 | 嘉兴大道锻造技术咨询有限公司 | A kind of knuckle joint press of bias fluted disc driving |
| CN109514903A (en) * | 2019-01-18 | 2019-03-26 | 扬力集团股份有限公司 | High-efficiency and precision servo-pump control hydraulic press and its processing method for stamping |
-
2020
- 2020-03-19 CN CN202010195328.9A patent/CN113492547A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103898A (en) * | 1994-10-04 | 1996-04-23 | Murata Mach Ltd | Abnormally detecting device for toggle type punch press |
| JPH11226786A (en) * | 1998-02-16 | 1999-08-24 | Ho Wen-Wei | Transmitting structure of ram for forging machine of press or the like |
| US20110083568A1 (en) * | 2008-06-18 | 2011-04-14 | Fahrenbach Juergen | Direct drive for a press |
| KR20110012056A (en) * | 2009-07-29 | 2011-02-09 | (주)우리프레스 | Preventing device stick phenomenon for slider of double knuckle press |
| CN203257661U (en) * | 2013-05-07 | 2013-10-30 | 姜堰市化肥有限责任公司 | Reciprocating pump plunger fixing device |
| CN104550601A (en) * | 2015-01-12 | 2015-04-29 | 顺德职业技术学院 | Double-toggle double-motor parallel-drive toggle rod mechanism and control method thereof |
| CN106863875A (en) * | 2017-03-29 | 2017-06-20 | 扬力集团股份有限公司 | A kind of stroke of a press and height of packing compact governor motion |
| CN108015141A (en) * | 2017-12-12 | 2018-05-11 | 嘉兴大道锻造技术咨询有限公司 | One kind supercharging toggle punching machine |
| CN108527907A (en) * | 2018-06-02 | 2018-09-14 | 嘉兴大道锻造技术咨询有限公司 | A kind of knuckle joint press of bias fluted disc driving |
| CN109514903A (en) * | 2019-01-18 | 2019-03-26 | 扬力集团股份有限公司 | High-efficiency and precision servo-pump control hydraulic press and its processing method for stamping |
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