CN107377705A - Pipe bending device for air conditioner condenser production - Google Patents
Pipe bending device for air conditioner condenser production Download PDFInfo
- Publication number
- CN107377705A CN107377705A CN201710793491.3A CN201710793491A CN107377705A CN 107377705 A CN107377705 A CN 107377705A CN 201710793491 A CN201710793491 A CN 201710793491A CN 107377705 A CN107377705 A CN 107377705A
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- CN
- China
- Prior art keywords
- bending
- servomotor
- threaded rod
- arc chute
- connecting rod
- 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.)
- Withdrawn
Links
- 238000005452 bending Methods 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 238000004378 air conditioning Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052802 copper Inorganic materials 0.000 abstract description 34
- 239000010949 copper Substances 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- 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
- B21D43/003—Positioning devices
-
- 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
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
-
- 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
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a pipe bending device for producing an air conditioner condenser, which comprises a movable block, a fixed plate, an electric telescopic rod, a limiting groove, a notch, a first nut, a first arc chute, a first threaded rod, a second arc chute and a second nut, wherein the limiting groove is formed in the right side of the front end face of the movable block and communicated with the notch, the left end of the electric telescopic rod is arranged on the right end face of the fixed plate, the design improves the limiting and clamping effect of the invention on a copper pipe, the lower end of the threaded rod is assembled in the first arc chute, the annular side face of the first threaded rod is assembled with the first nut, the lower end of the second threaded rod is assembled in the second arc chute, and the second nut is assembled on the annular side face of the threaded rod. The stability is good, and the reliability is high.
Description
Technical field
The present invention is a kind of air-conditioning condenser production swan neck system, belongs to condenser production equipment field.
Background technology
Condenser（Condenser）, for the parts of refrigeration system, belong to one kind of heat exchanger, gas or steam can be turned
Become liquid, the heat in pipe in a manner of quickly, is passed in the air near pipe.It is the key in refrigeration system
One of equipment.Conventional cooling medium is water and air.According to cooling（It is solidifying）Medium is different with heat transfer mechanism, can be divided into air cooling
Formula, water-cooled and vaporation-type.It can be divided into tubular type, board-like and other structures according to heat-transfer area shape and structure.Condenser working
Process is the process of a heat release, so condenser temperature is all higher.The material of condenser is typically with carbon steel, stainless steel and copper
Based on, wherein the tube sheet of carbon steel material as cooler in use, often there is corrosion leakage in the weld seam of its tube sheet and tubulation,
Leakage enters the waste that cooling water system can pollute environment and material.
In the prior art, condenser production is with swan neck system still there is many weak points, and it is in bending, to copper
The fixed effect of pipe is poor, the situation of copper pipe sideslip easily occurs, has a strong impact on the bending quality of copper pipe, while existing condenser
Production swan neck system can not realize double end while bend that operating efficiency is low, and existing condenser production swan neck system is curved
During folding, the bending angle of copper pipe can not be adjusted, it is big using limitation, so being badly in need of a kind of air-conditioning condenser production bend pipe
Device solves above-mentioned produced problem.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of air-conditioning condenser production swan neck system,
To solve the problems mentioned in the above background technology, the spacing clamping effect of the present invention is good, and operating efficiency is high, and bending angle is adjustable,
Stability is good, and reliability is high.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of air-conditioning condenser production
With swan neck system, including apparatus main body, spacing clamping device, double end bending mechanism and bending angle governor motion, the dress
Putting main body includes workbench, half nahlock and annular groove, and half nahlock is fixed on workbench upper surface, and the annular groove opens up
In the middle part of half nahlock annular side, the spacing clamping device is arranged on the left of half nahlock, and the spacing clamping device includes living
Motion block, fixed plate, electric expansion bar, stopper slot and notch, the notch are opened in movable block right side bottom, the activity
Block is arranged on workbench upper surface, and the stopper slot is opened on the right side of movable block front end face, and stopper slot communicates with notch, described
Fixed plate is arranged at the left side edge of workbench upper surface, and the electric expansion bar left end is arranged on fixed plate right side, described
Electric expansion bar right-hand member is arranged on movable block left side, and the double end bending mechanism is arranged on workbench upper surface, the double end
Bending mechanism includes bending plate one, connecting rod one, servomotor one, servomotor two, connecting rod two and bending plate two, described
Bending plate one is arranged on front side of movable block, and the bending plate two is arranged on rear side of movable block, and the servomotor one is arranged on half
On the right side of nahlock, the servomotor two is assemblied in the rear side of servomotor one, and the left end of connecting rod one connects bending plate one, described
The right-hand member of connecting rod one connects servomotor one, and the left end of connecting rod two is equipped with bending plate two, and the right-hand member of connecting rod two connects
Servomotor two is connect, the bending angle governor motion is arranged on the right side of double end bending mechanism, the bending angle governor motion
Including nut one, arc chute one, threaded rod one, threaded rod two, arc chute two and nut two, the He of arc chute one
Arc chute two is symmetrically opened in workbench upper surface, and the lower end of threaded rod one is assemblied in arc chute one, the screw thread
Nut one is equipped with the annular side of bar one, the lower end of threaded rod two is assemblied in arc chute two, the ring of threaded rod two
Nut two is equipped with shape side.
Further, it is machined with angle line on the arc chute one and arc chute two.
Further, it is each equipped with ball on the bending plate one and bending plate two.
Further, threaded rod one and threaded rod two lower end is each equipped with limiting plate.
Further, the cross section of connecting rod one and the cross section of connecting rod two are L-type structure.
Further, the workbench lower surface is equipped with four groups of supporting legs, and four groups of supporting legs are arranged in work
The edges and corners of platform lower surface four, the supporting leg lower surface are equipped with regulation pin.
Further, the servomotor one is identical with the specification of servomotor two.
Beneficial effects of the present invention：A kind of air-conditioning condenser production swan neck system of the present invention, because the present invention with the addition of
Movable block, fixed plate, electric expansion bar, stopper slot and notch, the design solve original condenser production swan neck system
It is poor to the fixed effect of copper pipe in bending, easily there is the situation of copper pipe sideslip, have a strong impact on asking for copper pipe bending quality
Topic, spacing clamping effect of the present invention to copper pipe is improved, avoids copper pipe that the situation of sideslip occurs, improves the conjunction of copper pipe bending
Lattice rate.
Because the present invention with the addition of bending plate one, connecting rod one, servomotor one, servomotor two, connecting rod two and folding
Bent plate two, the design solves original condenser production swan neck system and can not realize double end while bend, ineffective
Problem, the purpose that the present invention is bent simultaneously to copper pipe double end is realized, improves the bending efficiency of copper pipe.
Because the present invention with the addition of nut one, arc chute one, threaded rod one, threaded rod two, arc chute two and nut
Two, the design solves original condenser production swan neck system during bending, can not adjust the bending angle of copper pipe, make
With limitation it is big the problem of, realize present invention purpose that copper pipe bending angle is adjusted, expand being applicable for the present invention
Scope.
Because the present invention with the addition of angle line, the design is easy to adjust the bending angle of copper pipe, separately with the addition of ball, the design
The frictional force between bending plate one and bending plate two and copper pipe is reduced, separately with the addition of limiting plate, the design improves the present invention
The stability of structure, separately with the addition of supporting leg, and the support to the present invention is easy in the design, separately with the addition of regulation pin, the design is just
In the state of adjustment work platform, the spacing clamping effect of the present invention is good, and operating efficiency is high, and bending angle is adjustable, and stability is good, reliably
Property it is high.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of air-conditioning condenser production swan neck system of the present invention；
Fig. 2 is the structural representation of spacing clamping device in a kind of air-conditioning condenser production swan neck system of the present invention；
Fig. 3 is the structural representation of double end bending mechanism in a kind of air-conditioning condenser production swan neck system of the present invention；
Fig. 4 is the structural representation of bending angle governor motion in a kind of air-conditioning condenser production swan neck system of the present invention；
In figure：The spacing clamping devices of 1-, 2- double ends bending mechanism, 3- bending angles governor motion, 4- workbench, the nahlocks of 5- half,
6- annular grooves, 11- movable blocks, 12- fixed plates, 13- electric expansion bars, 14- stopper slots, 15- notches, 21- bending plates one, 22-
Connecting rod one, 23- servomotors one, 24- servomotors two, 25- connecting rods two, 26- bending plates two, 31- nuts one, 32- circles
Arc chute one, 33- threaded rods one, 34- threaded rods two, 35- arc chutes two, 36- nuts two.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Fig. 1-Fig. 4 is referred to, the present invention provides a kind of technical scheme：A kind of air-conditioning condenser production swan neck system, bag
Apparatus main body, spacing clamping device 1, double end bending mechanism 2 and bending angle governor motion 3 are included, apparatus main body includes work
Platform 4, half nahlock 5 and annular groove 6, half nahlock 5 are fixed on the upper surface of workbench 4, and annular groove 6 is opened in the annular side of half nahlock 5
Middle face.
Spacing clamping device 1 is arranged on the left side of half nahlock 5, and spacing clamping device 1 includes movable block 11, fixed plate 12, electricity
Dynamic expansion link 13, stopper slot 14 and notch 15, notch 15 are opened in the right side bottom of movable block 11, and movable block 11 is arranged on work
Make the upper surface of platform 4, stopper slot 14 is opened on the right side of the front end face of movable block 11, and stopper slot 14 communicates with notch 15, fixed plate 12
At the upper surface left side edge of workbench 4, the left end of electric expansion bar 13 is arranged on the right side of fixed plate 12, electric expansion bar
13 right-hand members are arranged on the left side of movable block 11, and the design solves original condenser production swan neck system in bending, to copper
The fixed effect of pipe is poor, the situation of copper pipe sideslip easily occurs, has a strong impact on the problem of copper pipe bends quality.
Double end bending mechanism 2 is arranged on the upper surface of workbench 4, and double end bending mechanism 2 includes bending plate 1, connecting rod one
22nd, servomotor 1, servomotor 2 24, connecting rod 2 25 and bending plate 2 26, bending plate 1 are arranged on movable block
11 front sides, bending plate 2 26 are arranged on the rear side of movable block 11, and servomotor 1 is arranged on the right side of half nahlock 5, servomotor two
24 are assemblied in the rear side of servomotor 1, the left end of connecting rod 1 connection bending plate 1, the right-hand member of connecting rod 1 connection servo
Motor 1, the left end of connecting rod 2 25 are equipped with bending plate 2 26, the right-hand member of connecting rod 2 25 connection servomotor 2 24, the design
Double end can not be realized while bend by solving original condenser production swan neck system, ineffective problem.
Bending angle governor motion 3 is arranged on the right side of double end bending mechanism 2, and bending angle governor motion 3 includes nut one
31st, arc chute 1, threaded rod 1, threaded rod 2 34, arc chute 2 35 and nut 2 36, the He of arc chute 1
Arc chute 2 35 is symmetrically opened in the upper surface of workbench 4, and the lower end of threaded rod 1 is assemblied in arc chute 1, threaded rod
Nut 1 is equipped with one 33 annular sides, the lower end of threaded rod 2 34 is assemblied in arc chute 2 35, the ring of threaded rod 2 34
Nut 2 36 is equipped with shape side, the design solves original condenser production swan neck system during bending, can not
Adjust copper pipe bending angle, using limitation it is big the problem of.
It is machined with angle line on arc chute 1 and arc chute 2 35, on bending plate 1 and bending plate 2 26
Ball is equipped with, threaded rod 1 and the lower end of threaded rod 2 34 are each equipped with limiting plate, the cross section of connecting rod 1 and connecting rod
2 25 cross sections are L-type structure, and the lower surface of workbench 4 is equipped with four groups of supporting legs, and four groups of supporting legs are arranged in work
Make platform 4 lower surface four edges and corners, supporting leg lower surface is equipped with regulation pin, servomotor 1 and the specification of servomotor 2 24
It is identical.
Embodiment：In progress in use, being checked first by personnel the present invention, check for scarce
Fall into, can not just carry out using if there is defect, now need to notify maintenance personal to be repaired, if there is no asking
It can be carried out using if topic, in use, user of service runs electric expansion bar 13, and then the elongation of electric expansion bar 13 drives
Movable block 11 moves on workbench 4, and when notch 15 and half nahlock, 5 clampings on movable block 11 are complete, user of service stops
Electric expansion bar 13 is run, and then user of service inserts copper pipe to be bent in stopper slot 14, copper pipe to be bent is limited with this
Between annular groove 6 and stopper slot 14, it is achieved thereby that to the spacing of copper pipe, solves original condenser production swan neck system
It is poor to the fixed effect of copper pipe in bending, easily there is the situation of copper pipe sideslip, have a strong impact on asking for copper pipe bending quality
Topic.
When copper pipe is inserted stopper slot 14 by user of service, copper pipe one end is positioned on bending plate 1, copper pipe is another
One end is positioned on bending plate 1, and then user of service runs servomotor 1 and servomotor 2 24 simultaneously, and then watches
Take motor 1 drives bending plate 1 to rotate by connecting rod 1, and servomotor 2 24 drives bending by connecting rod 2 25
Plate 1 rotates, and so as to which bending plate 1 and bending plate 1 bend at copper pipe both ends in annular groove 6 simultaneously, is solved with this
Original condenser production swan neck system can not realize double end while bend, ineffective problem.
User of service is as needed, according to position and spiral shell of the angle line regulation threaded rod 1 in arc chute 1
Position of the rasp bar 2 34 in arc chute 2 35, after the position adjustments of threaded rod 1 and threaded rod 2 34 are good, user
Threaded rod 1 and threaded rod 2 34 are fixed on workbench 4 by member respectively using nut 1 and nut 2 36, when servo electricity
The drive of machine 1 connecting rod 1 is moved at threaded rod 1 and servomotor 2 24 drives connecting rod 2 25 to move to spiral shell
When at rasp bar 2 34, threaded rod 1 prevents the motion of connecting rod 1, and threaded rod 2 34 prevents the motion of connecting rod 2 25, this
When user of service's servomotor 1 out of service and servomotor 2 24, so as to realize the regulation of copper pipe bending angle, solve
Original condenser production swan neck system can not adjust the bending angle of copper pipe during bending, big using limitation
Problem.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Which point therefore, no matter from the point of view of, all should incite somebody to action
Embodiment regards exemplary as, and be it is nonrestrictive, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of air-conditioning condenser production swan neck system, including apparatus main body, spacing clamping device（1）, double end bending mechanism
（2）And bending angle governor motion（3）, it is characterised in that：Described device main body includes workbench（4）, half nahlock（5）And
Annular groove（6）, half nahlock（5）It is fixed on workbench（4）Upper surface, the annular groove（6）It is opened in half nahlock（5）Annular
In the middle part of side；
The spacing clamping device（1）It is arranged on half nahlock（5）Left side, the spacing clamping device（1）Including movable block（11）、
Fixed plate（12）, electric expansion bar（13）, stopper slot（14）And notch（15）, the notch（15）It is opened in movable block（11）
Right side bottom, the movable block（11）It is arranged on workbench（4）Upper surface, the stopper slot（14）It is opened in movable block（11）
On the right side of front end face, and stopper slot（14）With notch（15）Communicate, the fixed plate（12）Installed in workbench（4）On the left of upper surface
Edge, the electric expansion bar（13）Left end is arranged on fixed plate（12）Right side, the electric expansion bar（13）Right-hand member is pacified
Mounted in movable block（11）Left side；
The double end bending mechanism（2）Installed in workbench（4）Upper surface, the double end bending mechanism（2）Including bending plate one
（21）, connecting rod one（22）, servomotor one（23）, servomotor two（24）, connecting rod two（25）And bending plate two（26）,
The bending plate one（21）It is arranged on movable block（11）Front side, the bending plate two（26）It is arranged on movable block（11）Rear side, institute
State servomotor one（23）It is arranged on half nahlock（5）Right side, the servomotor two（24）It is assemblied in servomotor one（23）Afterwards
Side, the connecting rod one（22）Left end connects bending plate one（21）, the connecting rod one（22）Right-hand member connects servomotor one
（23）, the connecting rod two（25）Left end is equipped with bending plate two（26）, the connecting rod two（25）Right-hand member connects servomotor
Two（24）；
The bending angle governor motion（3）It is arranged on double end bending mechanism（2）Right side, the bending angle governor motion（3）
Including nut one（31）, arc chute one（32）, threaded rod one（33）, threaded rod two（34）, arc chute two（35）And spiral shell
Mother two（36）, the arc chute one（32）With arc chute two（35）Symmetrically it is opened in workbench（4）Upper surface, the screw thread
Bar one（33）Lower end is assemblied in arc chute one（32）It is interior, the threaded rod one（33）Nut one is equipped with annular side
（31）, the threaded rod two（34）Lower end is assemblied in arc chute two（35）It is interior, the threaded rod two（34）Filled in annular side
Equipped with nut two（36）.
A kind of 2. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The arc chute
One（32）With arc chute two（35）On be machined with angle line.
A kind of 3. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The bending plate one
（21）With bending plate two（26）On be each equipped with ball.
A kind of 4. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The threaded rod one
（33）With threaded rod two（34）Lower end is each equipped with limiting plate.
A kind of 5. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The connecting rod one
（22）Cross section and connecting rod two（25）Cross section is L-type structure.
A kind of 6. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The workbench
（4）Lower surface is equipped with four groups of supporting legs, and four groups of supporting legs are arranged in workbench（4）The edges and corners of lower surface four, institute
State supporting leg lower surface and be equipped with regulation pin.
A kind of 7. air-conditioning condenser production swan neck system according to claim 1, it is characterised in that：The servomotor
One（23）With servomotor two（24）Specification is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793491.3A CN107377705A (en) | 2017-09-06 | 2017-09-06 | Pipe bending device for air conditioner condenser production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710793491.3A CN107377705A (en) | 2017-09-06 | 2017-09-06 | Pipe bending device for air conditioner condenser production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107377705A true CN107377705A (en) | 2017-11-24 |
Family
ID=60349317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710793491.3A Withdrawn CN107377705A (en) | 2017-09-06 | 2017-09-06 | Pipe bending device for air conditioner condenser production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107377705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474934A (en) * | 2020-10-05 | 2021-03-12 | 代军辉 | Bending device for aluminum alloy door and window |
-
2017
- 2017-09-06 CN CN201710793491.3A patent/CN107377705A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474934A (en) * | 2020-10-05 | 2021-03-12 | 代军辉 | Bending device for aluminum alloy door and window |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |