CN105234218B - Automatic bending doffer - Google Patents
Automatic bending doffer Download PDFInfo
- Publication number
- CN105234218B CN105234218B CN201510795404.9A CN201510795404A CN105234218B CN 105234218 B CN105234218 B CN 105234218B CN 201510795404 A CN201510795404 A CN 201510795404A CN 105234218 B CN105234218 B CN 105234218B
- Authority
- CN
- China
- Prior art keywords
- hole
- pedestal
- pipe fitting
- boss
- bending
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/20—Storage arrangements; Piling or unpiling
Abstract
The invention discloses a kind of automatic bending doffer, including pedestal (1), pedestal (1) is provided with the reference plane (3) for being used for placing pipe fitting (2) free end and rotated for pipe fitting (2) free end, pedestal (1) is provided with the boss (4) positioned higher than reference plane (3) for pipe fitting (2) the other end, and boss (4) is provided with the opening (5) for being used for housing pipe fitting (2) end；Described pedestal (1) is vertically provided with the through hole (6) that the pipe fitting (2) after being used for bending vertically slides, and through hole (6) shape is consistent with the shape after pipe fitting (2) bending.It is low, easy to operate and without manually take the automatic bending doffer of pipe to provide a kind of maintenance cost.
Description
Technical field
The present invention relates to pipe fitting brake techniques field, more particularly to a kind of automatic bending doffer.
Background technology
Currently, the bending machine of in the market mainly includes CNC tube bending machine, hydraulic pipe bender etc., in the bending machine of prior art
The problem of generally existing maintenance cost is high, complex operation.In addition, in the prior art bending machine need one by one to be placed into pipe fitting it is curved
In pipe machine, also the pipe fitting of forming to be taken out one by one after pipe fitting bending, therefore during taking-up, if work be present in bender
Make unreliable problem to be easy for causing industrial injury to the operating personnel of taking-up, that is to say, that bending machine of the prior art is also present
The safety problem caused by needing manually to take pipe.
The content of the invention
The technical problem to be solved in the present invention is to overcome existing technological deficiency, there is provided a kind of maintenance cost is low, operation letter
Just and without manually take the automatic bending doffer of pipe.
The technical solution of the present invention is to provide a kind of automatic bending doffer with following structure：Including base
Seat, pedestal are provided with the reference plane for being used for placing pipe fitting free end and rotated for pipe fitting free end, and pedestal, which is provided with, is higher than benchmark
The boss that face positions for pipe fitting the other end, boss are provided with the opening for being used for housing pipe fitting end；Described pedestal edge
Vertical direction is provided with the through hole that the pipe fitting after being used for bending vertically slides, shape of through holes and the shape one after pipe fitting bending
Cause, through hole vertically penetrates pedestal upper surface and lower surface and through hole vertically includes position with open communication, through hole
First through hole immediately below boss and the second through hole positioned at outside the boss, first through hole and the second through hole pass through arc-shaped through-hole
Connection；Side wall on the perpendicular and the second through hole for being used to intersect with reference plane on boss close to boss side is in same perpendicular
In straight plane；Described pedestal is provided with the block for being used for pipe fitting end positioning, and block is fixedly connected on close in first through hole
End on the outside of pedestal, the lower surface of block flush with reference plane, block upper surface and boss upper surface flush；Described pedestal
On slidably connect for stretch into through hole with support tubes one end or from through hole extract with release to pipe fitting one end constraint cylinder
Pin, straight pin is arranged in boss position directly below, and straight pin top edge is in same level with reference plane；It is described
Pedestal be provided with accommodating straight pin and the blind hole slided for straight pin, the first extension spring is provided between straight pin and blind via bottom,
The slide bar that straight pin extends and extended to outside pedestal towards pedestal outside, sliding bar is connected in pedestal and slide bar is provided with directly
Line rack；A pair intermeshing first gears and second gear, first gear and slide bar are rotatably connected in described pedestal
On linear gear rack engaged transmission；Ratchet, ratchet one end and second gear clamping or disengagement, and ratchet are rotatably connected on pedestal
It is upper to be connected with the second extension spring being connected to for ratchet in second gear between the end of second gear and pedestal；On boss
The push rod for being pushed against with the pipe fitting after bending is slidably connected close to the region of perpendicular, boss, which is provided with, is used for accommodating top
The bar and stepped hole slided for push rod, push rod periphery wall are provided with annular protrusion, the annular on the step surface and push rod of stepped hole
Stage clip is provided between projection, stepped hole opening is combined with nut so that the annular protrusion on push rod is locked in stepped hole, top
Bar one end pushes against with the end away from second gear on ratchet, and the other end stretches out boss or is contracted in boss；Described pedestal
On be rotatably connected to for pipe fitting to be bent into the flap consistent with shape of through holes, flap includes being used for moulding pipe bending region
Curved portions and line part for moulding pipe linearity region, the hydraulic press for driving flap to rotate is connected with pedestal
Bed, the drift on hydraulic machine contacts with the line part on flap, and is connected with the 3rd between the line part and pedestal on flap
Extension spring.
The present invention is placed in the opening on boss by pipe fitting one end, and the other end is lain in a horizontal plane in reference plane, so
Can positions to the pipe fitting of a linear；Wherein, carried out below the pipe fitting end in opening by straight pin
Support limit；Subsequently, drift on hydraulic machine is worked to drive flap to rotate, and then pipe fitting is bent into and through hole by flap
The consistent shape of shape, i.e. pipe fitting one end in the opening on boss, are close to perpendicular on boss after other end bending all the time
In straight plane；When pipe fitting bending is close to the perpendicular of boss, pipe fitting inner wall can promote push rod to slide to cause ratchet and the
Two are out of gear, that is, release constraint of the ratchet to second gear；Subsequent straight pin is contracted to blind hole under the drive of the first extension spring
It is interior so as to relieve supporting role of the straight pin for pipe fitting, i.e. pipe fitting after bending is in vacant state；At the same time, flap exists
Resetted under the drive of 3rd extension spring, so as to which inwall of the pipe fitting can after bending along through hole falls.Whole pipe fitting bending
Cheng Zhong, operating personnel are only needed pipe fitting being placed on pedestal, and in pipe fitting bending process, the pipe fitting after bending can also be entered
Row automatic blanking, it is not necessary to which hand extend into above pedestal and operated to the pipe fitting after bending by operating personnel, i.e., whole bending
Operation of the process for operating personnel requires very easy, and without manually taking pipe, adds pipe fitting bending for operating personnel
Security；Further, the parts involved by structure of the invention are all a little simple parts, and gear, rack are all standard components
Can directly it be bought with market, the parts such as pedestal, flap, straight pin are all simple structure, and the cost of production and processing is low, that is,
Say, these parts otherwise be exactly that purchase cost is low, or be exactly that production cost is low, so the structure in the present invention is tieed up in the future
The cost of shield also decreases.Wherein, in the placement process of pipe fitting, one end on pipe fitting close to straight pin can be resisted against
On block, one end of pipe fitting is positioned with this so that pipe fitting has benchmark when placing, and then bending is come out
Pipe fitting specification always, i.e., the pipe shape after bending is consistent；That is, in mass bending pipe fitting, it is ensured that each
Pipe shape after individual bending is consistent.Therefore, it is low, easy to operate and without manually take pipe to provide a kind of maintenance cost by the present invention
Automatic bending doffer.
As a preferred embodiment, described slide bar is slidably connected in pedestal by dovetail groove.It is preferred by this, it is ensured that
Slide bar will not depart from sliding process from pedestal, and oat tail groove structure not only can play guide effect to the slip of slide bar,
The slip slided can also be given to play spacing effect.
As a preferred embodiment, the first described extension spring is socketed on slide bar, and first extension spring one end and straight pin and slide bar
Junction is connected, and the other end is connected with hole bottom.It is preferred by this, it is ensured that the first extension spring stress in deformation process is equal
It is even, ensure that the first extension spring both ends are connected with cylinder pin connection, the other end with blind via bottom respectively, improve the reliable of extension spring work
Property.
As a preferred embodiment, second described extension spring one end is connected with the end on ratchet close to second gear, the other end
It is connected with pedestal.It is preferred by this, it is ensured that the tension spring tension of ratchet hand second act on and with second gear clamping, prevent second
Gear inverts.
As a preferred embodiment, described straight pin has two, and two straight pins are in same level, two cylinders
Pin forms a U-shaped structure with slide bar end.The strong point of pipe fitting along its length can preferably be increased by this, expand cylinder
Sell the length range for pipe fitting support so that support of the pedestal for pipe fitting is relatively reliable.
Brief description of the drawings
Fig. 1 is the partial sectional view of the present invention.
Fig. 2 is top view when not placing pipe fitting in the present invention.
Fig. 3 is the structural representation of pedestal in the present invention.
Fig. 4 is the top view when pipe fitting not being bent over is placed in the present invention.
Fig. 5 is that placed the top view for being bent over rear tubular member in the present invention.
Fig. 6 is the structural representation of another angle of pedestal in the present invention.
Shown in figure：1st, pedestal, 2, pipe fitting, 3, reference plane, 4, boss, 5, opening, 6, through hole, 7, perpendicular, 8, side
Wall, 9, straight pin, the 10, first extension spring, 11, blind hole, 12, slide bar, 13, linear gear rack, 14, push rod, 15, stepped hole, 16, annular
Projection, 17, first through hole, the 18, second through hole, 19, arc-shaped through-hole, 20, nut, 21, flap, 22, curved portions, 23, line part,
24th, drift, 25, first gear, 26, second gear, 27, ratchet, the 28, second extension spring, the 29, the 3rd extension spring, 30, stage clip, 31, gear
Block.
Embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
As illustrated, the operation principle of the present invention：First, slide bar is first promoted, is led to until cylinder pin end abuts to first
Hole inwall, can strut the first extension spring during one side sliding bar, another aspect slide bar by linear gear rack and first gear,
The transmission of second gear can stir ratchet and periodically be rotated around a direction, and ratchet is in the presence of the second extension spring, can
To be connected to all the time in second gear, automatically reset to prevent on-slip bar；Then pipe fitting one end of non-bending is placed on boss
Opening in and positioned at straight pin top, the reference plane that the other end is lain in a horizontal plane on pedestal, as shown in Figure 4；Wherein, pipe fitting
Upper one end close to straight pin is resisted against on block, one end of pipe fitting is positioned with this so that pipe fitting has when placing
One benchmark, and then cause the pipe fitting specification of bending out always, i.e., the pipe shape after bending is consistent；
Then, the drift on hydraulic machine works to drive flap to rotate, so as to be bent into pipe fitting and shape of through holes one
Cause, as shown in Figure 5；In flap rotation process, the 3rd extension spring can be also pulled open so that the 3rd extension spring deformation resets to lay in flap
Required active force；The active force of flap can be held in order to prevent to occur after pipe fitting bending resilience or plastic deformation, drift
What continuous a period of time, such as 1~3min, specifically continue how long to see depending on pipe fitting made of specific material；
Wherein, in pipe fitting bending process, once pipe fitting inner wall contacts with the mandrel ends of perpendicular position on boss, pipe
Part will push push rod slip；So push rod will promote pawl rotation to release constraint of the ratchet to second gear, i.e., and second
Gear can inverts；Then, straight pin can slide under the pulling force effect of the first extension spring, and out of first through hole
Depart from, be contracted in blind hole, that is, relieve the supporting role for being located at open area to pipe fitting；
At the same time, drift can also terminate the active force to flap and retracted for clearance, pulling force of the flap in the 3rd extension spring
Reset can be rotated backward under effect；
Finally, the pipe fitting after bending is both without the supporting role of straight pin, also without the pressure of flap, so as to after bending
Pipe fitting can slide along the inwall of through hole, i.e., the reference plane on the pipe fitting and pedestal after bending and boss depart from.
Automatic bending doffer of the invention includes pedestal 1, and pedestal 1, which is provided with, to be used to place the free end of pipe fitting 2 and for pipe
The reference plane 3 that the free end of part 2 rotates, pedestal 1 are provided with the boss 4 positioned higher than reference plane 3 for the other end of pipe fitting 2,
Boss 4 is provided with the opening 5 for being used for housing the end of pipe fitting 2；Described pedestal 1 is vertically provided with the pipe fitting after being used for bending
2 through holes 6 vertically slided, the shape of through hole 6 is consistent with the shape after the bending of pipe fitting 2, and through hole 6 vertically penetrates base
1 upper and lower surface of seat and through hole 6 vertically connects with opening 5, through hole 6 includes first immediately below boss 4
Through hole 17 and the second through hole 18 positioned at the outside of boss 4, first through hole 17 are connected with the second through hole 18 by arc-shaped through-hole 19；It is convex
Side wall 8 on the through hole 18 of perpendicular 7 and second for being used to intersect with reference plane 3 on platform 4 close to the side of boss 4 is in same perpendicular
In straight plane；Described pedestal 1 is provided with the block 31 for being used for the positioning of the end of pipe fitting 2, and block 31 is fixedly connected on first through hole
Flushed on 17 close to the end in the outside of pedestal 1, the lower surface of block 31 with reference plane 3, the upper surface of block 31 and the upper surface of boss 4
Flush；Slidably connected on described pedestal 1 for stretching into through hole 6 with the one end of support tubes 2 or being extracted from through hole 6 with releasing pair
The straight pin 9 of the one end of pipe fitting 2 constraint, straight pin 9 are arranged in the position directly below of boss 4, and the top edge of straight pin 9 and benchmark
Face 3 is in same level；Described pedestal 1 is provided with accommodating straight pin 9 and the blind hole 11 slided for straight pin 9, cylinder
The first extension spring 10, the cunning that straight pin 9 extends and extended to outside pedestal 1 towards the outside of pedestal 1 are provided between pin 9 and the bottom of blind hole 11
Bar 12, slide bar 12 is slidably connected in pedestal 1 and slide bar 12 is provided with linear gear rack 13；It is rotatably connected in described pedestal 1
A pair intermeshing first gears 25 and second gear 26, first gear 25 engage biography with the linear gear rack 13 on slide bar 12
It is dynamic；It is rotatably connected to ratchet 27 on pedestal 1, the one end of ratchet 27 and the clamping of second gear 26 or disengagement, and close to the on ratchet 27
The second extension spring 28 being connected to for ratchet 27 in second gear 26 is connected between the end of two gears 26 and pedestal 1；Boss 4
The upper region close to perpendicular 7 slidably connects the push rod 14 for being pushed against with the pipe fitting 2 after bending, and boss 4, which is provided with, to be used
In accommodating push rod 14 and annular protrusion 16 is provided with for the stepped hole 15 of the slip of push rod 14, the periphery wall of push rod 14, stepped hole 15
It is provided with stage clip 30 between annular protrusion 16 on step surface and push rod 14, the opening of stepped hole 15 is combined with nut 20 with by push rod
Annular protrusion 16 on 14 is locked in stepped hole 15, and the one end of push rod 14 is supported with the end away from second gear 26 on ratchet 27
Tightly, the other end stretches out boss 4 or is contracted in boss 4；Be rotatably connected on described pedestal 1 for by pipe fitting 2 be bent into
The consistent flap 21 of the shape of through hole 6, flap 21 are included for the curved portions 22 of the bending region of moulding pipe 2 and for moulding pipe
The line part 23 of 2 linearity regions, is connected with the hydraulic machine for driving flap 21 to rotate on pedestal 1, rushing on hydraulic machine
First 24 contact with the line part 23 on flap 21, and are connected with the 3rd extension spring 29 between the line part 23 and pedestal 1 on flap 21.
Described slide bar 12 is slidably connected in pedestal 1 by dovetail groove.Described being slidably connected by dovetail groove refers to
The raised line of dove-tail form can be set on slide bar 12, and the dove-tail form chute slided for dove-tail form raised line can be set on pedestal 1, from
And slide bar 12 can both slide along the length direction of chute, moreover, the raised line of dove-tail form is will not be from the perpendicular of dove-tail form chute
To disengaging, dove-tail form raised line can only slip away from the both ends of dove-tail form chute.
The first described extension spring 10 is socketed on slide bar 12, and the one end of the first extension spring 10 is connected with straight pin 9 with slide bar 12
Place's connection, the other end are connected with the bottom hole of blind hole 11.
Described one end of the second extension spring 28 is connected with the end on ratchet 27 close to second gear 26, the other end and pedestal 1
Connection.
Described straight pin 9 has two, and two straight pins 9 are in same level, two straight pins 9 and slide bar 12
End forms a U-shaped structure, as shown in Figure 1.Wherein, the particular number of straight pin 9 can be had depending on actual conditions
The plus-minus of body.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit protection scope of the present invention.It is all in this hair
Within bright claim, any modification, equivalent substitution and improvement for being made etc., should be included in protection scope of the present invention it
It is interior.
Claims (5)
- A kind of 1. automatic bending doffer, it is characterised in that：It includes pedestal (1), and pedestal (1), which is provided with, to be used to place pipe fitting (2) free end and the reference plane (3) rotated for pipe fitting (2) free end, pedestal (1) are provided with higher than reference plane (3) for pipe The boss (4) of part (2) the other end positioning, boss (4) are provided with the opening (5) for being used for housing pipe fitting (2) end；Described base Seat (1) is vertically provided with the through hole (6) that the pipe fitting (2) after being used for bending vertically slides, through hole (6) shape and pipe Shape after part (2) bending is consistent, and through hole (6) vertically penetrates pedestal (1) upper and lower surface and through hole (6) is along perpendicular Nogata connects to opening (5), through hole (6) include first through hole (17) immediately below the boss (4) and positioned at boss (4) outside The second through hole (18) of side, first through hole (17) and the second through hole (18) are connected by arc-shaped through-hole (19)；Boss is used on (4) The perpendicular (7) intersected with reference plane (3) is in same with the side wall (8) on the second through hole (18) close to boss (4) side On perpendicular；Described pedestal (1) is provided with the block (31) for being used for the positioning of pipe fitting (2) end, and block (31) is fixedly connected End in first through hole (17) on the outside of pedestal (1), the lower surface of block (31) flush with reference plane (3), block (31) upper surface and boss (4) upper surface flush；Slidably connected on described pedestal (1) for stretching into through hole (6) to support Pipe fitting (2) one end is extracted from through hole (6) to release the straight pin (9) to the constraint of pipe fitting (2) one end, and straight pin (9) is arranged on Positioned at boss (4) position directly below, and straight pin (9) top edge is in same level with reference plane (3)；Described pedestal (1) accommodating straight pin (9) and the blind hole (11) slided for straight pin (9) are provided with, between straight pin (9) and blind hole (11) bottom Provided with the first extension spring (10), straight pin (9) is towards extension on the outside of pedestal (1) and extends to the outside slide bar (12) of pedestal (1), slide bar (12) it is slidably connected in pedestal (1) and slide bar (12) is provided with linear gear rack (13)；It is rotatably connected in described pedestal (1) A pair of intermeshing first gears (25) and second gear (26), first gear (25) and the linear gear rack on slide bar (12) (13) engaged transmission；Ratchet (27), ratchet (27) one end and second gear (26) clamping or de- are rotatably connected on pedestal (1) Open, and be connected with ratchet (27) between the end of second gear (26) and pedestal (1) and be connected to for ratchet (27) The second extension spring (28) on two gears (26)；Slidably connect and be used for and bending close to the region of perpendicular (7) on boss (4) The push rod (14) that pipe fitting (2) afterwards pushes against, boss (4) are provided with the step for being used for housing push rod (14) and slided for push rod (14) Hole (15), push rod (14) periphery wall are provided with annular protrusion (16), step surface and the annular on push rod (14) of stepped hole (15) It is provided with stage clip (30) between raised (16), stepped hole (15) opening is combined with nut (20) with by the convex annular on push rod (14) (16) to be played to be locked in stepped hole (15), push rod (14) one end pushes against with the end away from second gear (26) on ratchet (27), The other end stretches out boss (4) or is contracted in boss (4)；It is rotatably connected to and is used for pipe fitting (2) bending on described pedestal (1) Into the flap (21) consistent with through hole (6) shape, flap (21) includes the curved portions (22) for moulding pipe (2) bending region With the line part (23) for moulding pipe (2) linearity region, the liquid for driving flap (21) to rotate is connected with pedestal (1) Press bed, the drift (24) on hydraulic machine contacts with the line part (23) on flap (21), and the line part on flap (21) (23) the 3rd extension spring (29) is connected between pedestal (1).
- 2. automatic bending doffer according to claim 1, it is characterised in that：Described slide bar (12) passes through dovetail groove It is slidably connected in pedestal (1).
- 3. automatic bending doffer according to claim 1, it is characterised in that：Described the first extension spring (10) is socketed in On slide bar (12), and the first extension spring (10) one end is connected with straight pin (9), and the other end is connected with blind hole (11) bottom hole.
- 4. automatic bending doffer according to claim 1, it is characterised in that：Described the second extension spring (28) one end with Connected on ratchet (27) close to the end of second gear (26), the other end is connected with pedestal (1).
- 5. automatic bending doffer according to claim 1, it is characterised in that：Described straight pin (9) has two, and Two straight pins (9) are in same level, and two straight pins (9) form a U-shaped structure with slide bar (12) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795404.9A CN105234218B (en) | 2015-11-18 | 2015-11-18 | Automatic bending doffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795404.9A CN105234218B (en) | 2015-11-18 | 2015-11-18 | Automatic bending doffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105234218A CN105234218A (en) | 2016-01-13 |
| CN105234218B true CN105234218B (en) | 2017-11-28 |
Family
ID=55032179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510795404.9A Expired - Fee Related CN105234218B (en) | 2015-11-18 | 2015-11-18 | Automatic bending doffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105234218B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922140B (en) * | 2020-09-03 | 2021-01-05 | 烟台世瑞金属制品有限公司 | Steel pipe bending device capable of preventing elastic deformation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2832980C2 (en) * | 1978-07-27 | 1984-11-08 | Rigobert Dipl.-Ing. 5000 Köln Schwarze | Loading device for a pipe bending machine |
| CA1335784C (en) * | 1988-05-13 | 1995-06-06 | Sadao Kimura | Small-diameter metallic conduit bending machine |
| DE102008045872A1 (en) * | 2008-09-04 | 2010-03-11 | Universität Siegen | Method and bending tool for bending pipes via a bending mandrel and beading tool |
| CN201579319U (en) * | 2009-11-18 | 2010-09-15 | 鲁西工业装备有限公司 | High-pressure pipeline bending device |
| CN201969757U (en) * | 2010-12-22 | 2011-09-14 | 芜湖兴华照明电器有限公司 | Manual bender |
| CN103600004B (en) * | 2013-11-29 | 2015-09-30 | 中山市奥美森工业有限公司 | A kind of shedding mechanism of bending machine |
| CN204365957U (en) * | 2014-12-23 | 2015-06-03 | 浙江兴南链条股份有限公司 | A kind of high-efficient automatic twisted chain machine |
| CN204606246U (en) * | 2015-05-08 | 2015-09-02 | 康延成 | For the machine of sub-material |
-
2015
- 2015-11-18 CN CN201510795404.9A patent/CN105234218B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105234218A (en) | 2016-01-13 |
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Granted publication date: 20171128 Termination date: 20211118 |