CN106391929B - Multi-functional bending straightener - Google Patents
Multi-functional bending straightener Download PDFInfo
- Publication number
- CN106391929B CN106391929B CN201610957636.4A CN201610957636A CN106391929B CN 106391929 B CN106391929 B CN 106391929B CN 201610957636 A CN201610957636 A CN 201610957636A CN 106391929 B CN106391929 B CN 106391929B
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- fluid
- hydraulic cylinder
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- connecting tube
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/02—Straightening
-
- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The present invention provides a kind of multi-functional bending straightener, including switching valve, hydraulic cylinder and straightening component.Switching valve includes housing, conversion control, the first connecting tube and the second connecting tube.There is fluid intake and fluid issuing in housing.Control is changed along being axially disposed within housing perpendicular to housing, changing on control has multiple axis through hole parallel with fluid intake direction, and control is changed along the axial movement perpendicular to housing when flowing to and changing.First connecting tube and the second connecting tube, conversion control and hydraulic cylinder are connected to, form fluid circulation.
Description
Technical field
The present invention relates to hydraulic machinery field, and more particularly to a kind of multi-functional bending straightener.
Background technology
Multi-functional bending straightener be it is a kind of can be the conventional of steel bar meter by the steel plate of bending or the equipment of bar straightening
Equipment.Multi-functional bending straightener is generally driven straightening using one-way hydraulic cylinder.However, oil circuit enters in existing hydraulic cylinder
It can only in one direction be circulated after entering hydraulic cylinder, i.e., can only drive piston advances forward；The retrogressing of piston then needs hand
Could it be realized after dynamic draining, user uses very inconvenient, and operating efficiency is very low.
In addition, to realize that the automatic of piston is retracted, the curved straightener of market upper part Multi-function folding uses bidirectional hydraulic at present
Oil cylinder, this bending straightener not only oil circuit complex designing and use cost is higher, the equally use to user brings difficulty.
The content of the invention
The present invention is for overcome the deficiencies in the prior art, there is provided a kind of multi-functional bending straightener.
To achieve these goals, the present invention provides a kind of multi-functional bending straightener, including switching valve, hydraulic cylinder and tune
Straight component.Switching valve includes housing, conversion control, the first connecting tube and the second connecting tube.There is fluid intake and stream in housing
Body exports.Control is changed along being axially disposed within housing perpendicular to housing, changing on control, there are multiple axis to enter with fluid
The parallel through hole in mouth direction, control is changed along the axial movement perpendicular to housing when flowing to and changing.First connecting tube and second
Connecting tube, conversion control and hydraulic cylinder are connected to, form fluid circulation.
When conversion control is located at the first station, conversion control blocks the first connecting tube and the second connecting tube, fluid are flowing
Circulated between body entrance and fluid issuing.
When conversion control is located at second station, side movement of the conversion control from the first station to housing, fluid is through turning
The through hole changed on control flows into the first connecting tube from fluid intake, then flows into the first cavity of hydraulic cylinder, the chamber of hydraulic cylinder second
Internal fluid flows to fluid issuing from the through hole in the second connecting tube and conversion control, and fluid forms first in hydraulic cylinder
The circulation in direction.
When conversion control is located at 3rd station, opposite side movement of the conversion control from the first station to housing, fluid warp
The through hole changed on control flows into the second connecting tube from fluid intake, then flows into the second cavity of hydraulic cylinder, hydraulic cylinder first
Fluid in cavity flows to fluid issuing from the through hole in the first connecting tube and conversion control, and fluid forms second in hydraulic cylinder
The circulation in individual direction.
Hydraulic cylinder is connected with the first connecting tube of switching valve and the second connecting tube, and hydraulic cylinder includes piston, and piston is by liquid
Cavity in cylinder pressure is divided into the first cavity and the second cavity.Straightening component is fixedly connected with hydraulic cylinder, and straightening component includes straightening
Portion and the support in fixed straightening portion, straightening portion is connected with the piston in hydraulic cylinder.
In one embodiment of the invention, conversion control is first-class to be interval with three through holes, and it is straight that fluid intake includes four grades
The inflow branch pipe in footpath, the fluid issuing outflow branch pipe that to include three diameters equal with the diameter for flowing into branch pipe, the first inflow branch pipe,
Second flows into branch pipe and the first outflow branch pipe three setting corresponding with first through hole, and the diameter of first through hole is more than an outflow
The diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；
3rd flows into branch pipe and the second outflow branch pipe setting corresponding with the second through hole, and the diameter of the second through hole is more than one
Flow out the diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；
4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to an outflow branch pipe
Diameter；
First connecting tube includes the first connecting branch and the second connecting branch, the first connecting branch and the second connecting branch with
First through hole is correspondingly arranged；Second connecting tube includes the 3rd connecting branch and the 4th connecting branch, the 3rd connecting branch and second
Connecting hole is correspondingly arranged, and the 4th connecting branch is correspondingly arranged with the 3rd connecting hole；
Control is changed when station is changed, the distance that conversion control moves to housing side or opposite side, which is equal to, flows into branch pipe
Diameter.
In one embodiment of the invention, it is shaft-like into cylinder to change control.
In one embodiment of the invention, switching valve also includes being arranged on housing and driving side of the conversion control to housing
Or the actuator of opposite side movement.
In one embodiment of the invention, actuator is the swivelling cover being arranged on housing, has in swivelling cover and is symmetrical arranged
Two arc tracks, two arc tracks with change control two ends it is relative.
In one embodiment of the invention, the outer surface of actuator has multiple Non-slip materials.
In one embodiment of the invention, swivelling cover also includes two reinforcements being correspondingly arranged with two arc tracks.
In one embodiment of the invention, straightening portion includes straightening groove and ribs, and ribs is oppositely arranged on hydraulic cylinder
The outside of straightening groove.
In one embodiment of the invention, two side walls of straightening groove are curved wall, and the upper width of straightening groove is less than bottom
The width in portion.
In summary, multi-functional bending straightener provided by the invention has advantages below compared with prior art：
By setting conversion control in switching valve, conversion control can be moved along the axis direction perpendicular to housing to cause
Conversion control is in different stations.Control is changed in different stations, through hole thereon and fluid intake and fluid issuing it
Between connected relation will change.When conversion control is in second station, fluid via through holes and the first connecting tube influent
The first cavity in cylinder pressure, the fluid in the second cavity of hydraulic cylinder flows out through the second connecting tube and through hole, real in hydraulic cylinder
The existing circulation of fluid in the first direction, piston in hydraulic cylinder travel forward.And when conversion control is in 3rd station, stream
The second cavity that body via through holes and the second connecting tube are flowed into hydraulic cylinder, the fluid in the first cavity of hydraulic cylinder is through the first connection
Pipe and through hole outflow, realize the circulation of fluid in a second direction, piston in hydraulic cylinder retracts original position in hydraulic cylinder.
The change of flow direction can be achieved in the conversion control that switching valve provided by the invention need to only change in switching valve, from
And realize the automatic of piston in hydraulic cylinder and move forward and backward.Applied on bending straightener, the front oil duct without change is set
Meter, only it need to increase a switching valve, it is not only greatly convenient for users to use, while also significantly reduce cost.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly,
And coordinate accompanying drawing, it is described in detail below.
Brief description of the drawings
Fig. 1 show the structural representation of the multi-functional bending straightener of one embodiment of the invention offer.
Fig. 2 show structural representation when switching valve in Fig. 1 is located at the first station.
Fig. 3 show structural representation when switching valve in Fig. 1 is located at second station.
Fig. 4 show structural representation when switching valve in Fig. 1 is located at 3rd station.
Fig. 5 show the structural representation of actuator in Fig. 1.
Embodiment
As shown in figure 1, the multi-functional bending straightener that the present embodiment provides includes switching valve 100, hydraulic cylinder 200 and straightening
Component 300.Switching valve includes housing 1, conversion control 2, the first connecting tube 3 and the second connecting tube 4.Enter in housing 1 with fluid
Mouth 11 and fluid issuing 12.Control 2 is changed along being axially disposed within housing 1 perpendicular to housing 1, is changed on control 2 with more
The individual axis through hole parallel with the direction of fluid intake 11, control 2 is changed when flowing to and changing along the axial direction shifting perpendicular to housing 1
It is dynamic.First connecting tube 3 and the second connecting tube 4 are connected to conversion control 2 and hydraulic cylinder, form fluid circulation.
Specifically, control 2 is first-class is interval with three through holes for conversion, and fluid intake 11 includes four isodiametric inflows
Branch pipe, the outflow branch pipe that to include three diameters equal with the diameter for flowing into branch pipe of fluid issuing 12, the first inflow branch pipe 111, the
Two inflow branch pipes 112 and first flow out the three of branch pipe 121 and are more than with 21 corresponding setting of first through hole, the diameter of first through hole 21
The diameter of the diameter of one outflow branch pipe but less than or equal to two outflow branch pipes.
3rd, which flows into branch pipe 113 and second, flows out branch pipe 112 and the 22 corresponding setting of the second through hole, the second through hole 22 it is straight
Footpath is more than the diameter of the diameter of an outflow branch pipe but less than or equal to two outflow branch pipes.4th flows into branch pipe 114 and the 3rd
23 corresponding setting of through hole, the diameter of third through-hole 23 are less than or equal to the diameter of an outflow branch pipe.In the present embodiment, the
The diameter of one through hole 21 and the second through hole 22 is equal to two outflow branch pipe diameters, and third through-hole 23 is equal to one and flows out the straight of branch pipe
Footpath.However, the present invention is not limited in any way to this.
First connecting tube 3 includes the first connecting branch 31 and the second connecting branch 32, and the first connecting branch 31 and second connects
Branch pipe 32 is connect to be correspondingly arranged with first through hole 21；Second connecting tube 4 includes the 3rd connecting branch 41 and the 4th connecting branch 42, the
Three connecting branches 41 are correspondingly arranged with the second connecting hole 22, and the 4th connecting branch 42 is correspondingly arranged with the 3rd connecting hole 23.
As shown in Fig. 2 when conversion control 2 is located at the first station, first connecting tube of the conversion closure of control 23 and second connects
Adapter 4, fluid circulate between fluid intake 11 and fluid issuing 12, do not enter in figure the hydraulic cylinder on right side, hydraulic cylinder not work
Make.
When side movement (in Fig. 3 be to the top of housing move) of the conversion control to the place of housing 1, control 2 is changed
In second station, mobile distance is equal to the diameter for flowing into branch pipe.Oil circuit direction now is：On the converted control 2 of fluid
Through hole flows into the first connecting tube 3 from fluid intake 21, then flows into the first cavity for hydraulic cylinder, in the second cavity of hydraulic cylinder
Fluid flow to fluid issuing 12 from the through hole in the second connecting tube 4 and conversion control 2.It is specific as follows：
First, which flows into branch pipe 111 and second, flows into branch pipe 112 and first through hole 21 relatively, the first connecting branch 31 and first
The other end of through hole 21 is relative, and the second outflow connecting branch 41 of branch pipe 122 and the 3rd is arranged on the both sides of the second through hole 22.This sets
Put so that fluid flows into branch pipe 111 and second through first flows into the inflow first through hole 21 of branch pipe 112, by the first connecting branch 31
Flow into the first cavity 200a of hydraulic cylinder；The fluid retained in second cavity 200b of hydraulic cylinder flows through the 3rd connecting branch 41
Enter the second connecting hole 22, flowed out by the second outflow branch pipe 122, realize the circulation in first direction in hydraulic cylinder, now hydraulic pressure
Piston advances forward in cylinder.
Opposite, when conversion control 2 moves (being moved down in Fig. 4) to the opposite side of housing 1, conversion control 2 is positioned at the
Three stations, mobile distance are equal to the diameter for flowing into branch pipe.Oil circuit direction now is：Through hole on the converted control 2 of fluid
The second connecting tube 4 is flowed into from fluid intake 21, then is flowed into the second cavity of hydraulic cylinder, the fluid in the first cavity of hydraulic cylinder
Fluid issuing 12 is flowed to from the through hole in the first connecting tube 3 and conversion control.It is specific as follows：
The 4th inflow connecting branch 42 of branch pipe 114 and the 4th is respectively communicated with third through-hole 23；Second connecting branch 31 and
One outflow branch pipe 121 respectively with the UNICOM of first through hole 21.The setting causes fluid to flow into branch pipe 114 through the 4th and flow into third through-hole
23, flowed into by the 4th connecting branch 42 in second cavity 200b of hydraulic cylinder, the fluid warp in the first cavity of hydraulic cylinder 200a
Second connecting branch 31, first through hole 21 and first flow out branch pipe 121 and flowed out.The circulation in second direction in hydraulic cylinder is realized,
Piston is pushed back into initial position, piston retreats.
In the present embodiment, it is shaft-like into cylinder to change control 2.However, the present invention is not limited in any way to this.In other realities
Apply in example, it can be flat column to change control 2.
In the present embodiment, switching valve 100 also includes being arranged on housing 1 and drives conversion control 2 to the side of housing 1
Or the actuator 5 of opposite side movement.In the present embodiment, actuator 5 is the swivelling cover being arranged on housing 1, is had in swivelling cover
Two arc tracks 51 are symmetrical arranged, two arc tracks 51 are relative with two ends for changing control 2.It is however, of the invention
This is not limited in any way.Further, the outer surface of actuator 5 has multiple Non-slip materials 52.The setting greatly facilitates use
The station of family switch transition control.
For with more preferable intensity, in the present embodiment, swivelling cover also includes what is be correspondingly arranged with two arc tracks 51
Two reinforcements 53.However, the present invention is not limited in any way to this.
Switching valve 100 switches over to oil circuit in the bending straightener that the present embodiment also provides.Hydraulic cylinder 200 and switching valve
100 the first connecting tube 3 is connected with the second connecting tube 4, and hydraulic cylinder 200 includes piston 201, and piston 201 is by hydraulic cylinder
Cavity is divided into the first cavity 200a and the second cavity 200b.Straightening component 300 is fixedly connected with hydraulic cylinder 200, straightening component 300
Support 302 including straightening portion 301 and fixed straightening portion 301, straightening portion 301 are connected with the piston 201 in hydraulic cylinder, piston
201 driving straightening portions 301 move.
In the present embodiment, straightening portion includes straightening groove 3011 and ribs 3012, and ribs 3012 is relative with hydraulic cylinder
It is arranged on the outside of straightening groove 3011.
In actual use, the workpiece to be added for treating straightening can be placed on straightening groove 3011 by user, will be turned by actuator 5
The conversion control 2 changed in valve 100 is turned in second station, and the piston 201 in hydraulic cylinder 200 travels forward, by workpiece to be added
Upper bent portion straightening.For to machined part spacing and to set certain working space in straightening, straightening groove is set
3011 two side walls are curved wall, and the upper width of straightening groove 3011 is less than the width of bottom.The setting of ribs 3012
The intensity of straightening groove 3011 is improved, extends the service life of straightening groove 3011.After straightening terminates, it will be changed by actuator 5
Control 2 is switched to 3rd station from second station, and the piston 201 of hydraulic cylinder retreats.
In the present embodiment, switching valve is the oil circuit switching valve applied on hydraulic cylinder.However, the present invention this is not made it is any
Limit.In other embodiments, switching valve provided by the invention can be used for other fluids, as the flow direction of water is changed.
In summary, cross and conversion control is set in switching valve, conversion control can be along the axis direction shifting perpendicular to housing
Move and be in different stations to change control.Control is changed in different stations, through hole and fluid intake and stream thereon
Connected relation between body outlet will change.When conversion control is in second station, fluid via through holes and the first connection
The first cavity that pipe is flowed into hydraulic cylinder, the fluid in the second cavity of hydraulic cylinder flows out through the second connecting tube and through hole, in liquid
The circulation of fluid in the first direction is realized in cylinder pressure, piston in hydraulic cylinder travels forward.And when conversion control is in the 3rd
During station, the second cavity that fluid via through holes and the second connecting tube are flowed into hydraulic cylinder, the fluid in the first cavity of hydraulic cylinder
Flowed out through the first connecting tube and through hole, the circulation of fluid in a second direction is realized in hydraulic cylinder, piston in hydraulic cylinder is moved back
Go back to original position.The change of flow direction can be achieved in the conversion control that switching valve provided by the invention need to only change in switching valve, from
And realize the automatic of piston in hydraulic cylinder and move forward and backward.Applied on bending straightener, the front oil duct without change is set
Meter, only it need to increase a switching valve, it is not only greatly convenient for users to use, while also significantly reduce cost.
Although the present invention is disclosed above by preferred embodiment, but is not limited to the present invention, this any known skill
Skill person, without departing from the spirit and scope of the present invention, a little change and retouching can be made, therefore protection scope of the present invention is worked as
It is defined depending on claims scope claimed.
Claims (8)
- A kind of 1. multi-functional bending straightener, it is characterised in that including：Switching valve, the switching valve switch over to oil circuit, institute Stating switching valve includes：Housing, the housing is interior to have fluid intake and fluid issuing；Change control, along being axially disposed within housing perpendicular to the housing, have on the conversion control multiple axis with The parallel through hole in fluid intake direction, control is changed along the axial movement perpendicular to housing when flowing to and changing；First connecting tube and the second connecting tube, conversion control and hydraulic cylinder are connected to, form fluid circulation；When conversion control During positioned at the first station, conversion control blocks the first connecting tube and the second connecting tube, fluid fluid intake and fluid issuing it Between circulate；When conversion control is located at second station, side movement of the conversion control from the first station to housing, the converted control of fluid Through hole on part flows into the first connecting tube from fluid intake, then flows into the first cavity of hydraulic cylinder, in the cavity of hydraulic cylinder second Fluid from the second connecting tube and conversion control on through hole flow to fluid issuing, fluid forms first direction in hydraulic cylinder Circulation；When conversion control is located at 3rd station, opposite side of the conversion control from the first station to housing moves, and fluid is converted Through hole on control flows into the second connecting tube from fluid intake, then flows into the second cavity of hydraulic cylinder, the cavity of hydraulic cylinder first Interior fluid flows to fluid issuing from the through hole in the first connecting tube and conversion control, and fluid forms second side in hydraulic cylinder To circulation；Hydraulic cylinder, it is connected with the first connecting tube of the switching valve and the second connecting tube, the hydraulic cylinder includes piston, described Cavity in hydraulic cylinder is divided into the first cavity and the second cavity by piston；Straightening component, it is fixedly connected with the hydraulic cylinder, the straightening component includes the support in straightening portion and fixed straightening portion, institute Straightening portion is stated with the piston in hydraulic cylinder to be connected；Control is first-class is interval with three through holes for the conversion, and fluid intake includes four isodiametric inflow branch pipes, and fluid goes out Mouth includes three diameters outflow branch pipe equal with the diameter of inflow branch pipe, and first flows into branch pipe, the second inflow branch pipe and first Flow out branch pipe three setting corresponding with first through hole, the diameter of first through hole be more than a diameter for flowing out branch pipe but be less than or The diameter of equal to two outflow branch pipes；3rd flows into branch pipe and the second outflow branch pipe setting corresponding with the second through hole, and the diameter of the second through hole is more than an outflow The diameter of the diameter of branch pipe but less than or equal to two outflow branch pipes；4th flows into branch pipe setting corresponding with third through-hole, and the diameter of third through-hole is less than or equal to one and flows out the straight of branch pipe Footpath；First connecting tube includes the first connecting branch and the second connecting branch, the first connecting branch and the second connecting branch and first Through hole is correspondingly arranged；Second connecting tube includes the 3rd connecting branch and the 4th connecting branch, and the 3rd connecting branch is connected with second Hole is correspondingly arranged, and the 4th connecting branch is correspondingly arranged with the 3rd connecting hole；Control is changed when station is changed, the distance that conversion control moves to housing side or opposite side, which is equal to, flows into the straight of branch pipe Footpath.
- 2. multi-functional bending straightener according to claim 1, it is characterised in that described to change control shaft-like into cylinder.
- 3. multi-functional bending straightener according to claim 1, it is characterised in that the switching valve also includes being arranged on shell On body and the actuator that control moves to the side of housing or opposite side is changed in driving.
- 4. multi-functional bending straightener according to claim 3, it is characterised in that the actuator is to be arranged on housing Swivelling cover, there is symmetrically arranged two arc tracks, two arc tracks are with changing control in the swivelling cover Two ends are relative.
- 5. multi-functional bending straightener according to claim 4, it is characterised in that the outer surface of the actuator has more Individual Non-slip material.
- 6. multi-functional bending straightener according to claim 4, it is characterised in that the swivelling cover also includes and two arcs Two reinforcements that shape track is correspondingly arranged.
- 7. multi-functional bending straightener according to claim 1, it is characterised in that the straightening portion includes straightening groove and added Strong rib, the ribs are oppositely arranged on the outside of straightening groove with hydraulic cylinder.
- 8. multi-functional bending straightener according to claim 7, it is characterised in that two side walls of the straightening groove are arc Shape side wall, the upper width of straightening groove are less than the width of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957636.4A CN106391929B (en) | 2016-11-03 | 2016-11-03 | Multi-functional bending straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957636.4A CN106391929B (en) | 2016-11-03 | 2016-11-03 | Multi-functional bending straightener |
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| Publication Number | Publication Date |
|---|---|
| CN106391929A CN106391929A (en) | 2017-02-15 |
| CN106391929B true CN106391929B (en) | 2018-03-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610957636.4A Active CN106391929B (en) | 2016-11-03 | 2016-11-03 | Multi-functional bending straightener |
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| CN (1) | CN106391929B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623690B (en) * | 2017-02-13 | 2018-04-17 | 杭州欧盾机电有限公司 | Integral type bending straightener |
| CN107013525B (en) * | 2017-04-11 | 2018-08-17 | 欧盾科技有限公司 | Hydraulic device and bending straightener with hydraulic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135170A (en) * | 1955-12-13 | 1964-06-02 | Starrfraesmaschinen Ag | Hydraulic control for moving elements of a machine tool |
| CN102097770A (en) * | 2010-12-02 | 2011-06-15 | 衢州电力局 | Electric tube type bus adjusting device |
| CN201985488U (en) * | 2010-12-02 | 2011-09-21 | 衢州电力局 | Power tube type bus bar adjusting device |
| CN203292386U (en) * | 2013-06-07 | 2013-11-20 | 昌吉市骆氏酒花科技有限公司 | Straightener for round steel |
| CN105170720A (en) * | 2015-10-30 | 2015-12-23 | 杭州众铎消防科技有限公司 | Hydraulic bending straightener |
| CN205146946U (en) * | 2015-10-30 | 2016-04-13 | 杭州众铎消防科技有限公司 | Hydraulic pressure alignment ware of bending |
| CN206185052U (en) * | 2016-11-03 | 2017-05-24 | 杭州欧盾机电有限公司 | Multi -functional bar straightener of bending |
-
2016
- 2016-11-03 CN CN201610957636.4A patent/CN106391929B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135170A (en) * | 1955-12-13 | 1964-06-02 | Starrfraesmaschinen Ag | Hydraulic control for moving elements of a machine tool |
| CN102097770A (en) * | 2010-12-02 | 2011-06-15 | 衢州电力局 | Electric tube type bus adjusting device |
| CN201985488U (en) * | 2010-12-02 | 2011-09-21 | 衢州电力局 | Power tube type bus bar adjusting device |
| CN203292386U (en) * | 2013-06-07 | 2013-11-20 | 昌吉市骆氏酒花科技有限公司 | Straightener for round steel |
| CN105170720A (en) * | 2015-10-30 | 2015-12-23 | 杭州众铎消防科技有限公司 | Hydraulic bending straightener |
| CN205146946U (en) * | 2015-10-30 | 2016-04-13 | 杭州众铎消防科技有限公司 | Hydraulic pressure alignment ware of bending |
| CN206185052U (en) * | 2016-11-03 | 2017-05-24 | 杭州欧盾机电有限公司 | Multi -functional bar straightener of bending |
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| CN106391929A (en) | 2017-02-15 |
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Address after: Hangzhou City, Zhejiang province 310000 Binjiang District River Street No. 688 bin An Lu 2 E floor room 157 Patentee after: Europe Shield Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province 310000 Binjiang District River Street No. 688 bin An Lu 2 E floor room 157 Patentee before: Hangzhou Oudun Electromechanical Co., Ltd. |
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