CN106734384B - For the equipment of U-shaped steel tube end shaping - Google Patents
For the equipment of U-shaped steel tube end shaping Download PDFInfo
- Publication number
- CN106734384B CN106734384B CN201611172180.7A CN201611172180A CN106734384B CN 106734384 B CN106734384 B CN 106734384B CN 201611172180 A CN201611172180 A CN 201611172180A CN 106734384 B CN106734384 B CN 106734384B
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- China
- Prior art keywords
- shaped steel
- steel pipe
- conveying roller
- mainframe
- shaping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- 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
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of equipment for U-shaped steel tube end shaping, including mainframe, further include and the U steel ejection hydraulic cylinder onto workpiece conveying roller is ejected from the punch die of mainframe for that will complete the U-shaped steel pipe of end shaping mounted on the rear portion of mainframe；The upper and lower part of mainframe is separately installed with the punch-pin and cavity plate being used in conjunction with each other, punch-pin fixed setting, and cavity plate can move up and down under the effect of punching press hydraulic cylinder along the guide rail of mainframe both sides；Conveying roller is installed, conveying roller supports and rolls dragging U-shaped steel pipe or so laterally operation in U-shaped steel pipe transport platform；U-shaped steel pipe transport platform includes blanking conveying roller and shaping conveying roller and blanking transport platform, the non-blanking end side of blanking conveying roller is equipped with U-shaped steel pipe blanking hydraulic cylinder, the outer end of blanking transport platform is equipped with U steel discharge hydraulic cylinders, and the head of U steel discharge hydraulic cylinders is equipped with the U steel pipe material-pulling devices U-shaped steel pipe to be pulled away to shaping conveying roller.
Description
Technical field
The present invention relates to a kind of equipment for U-shaped steel tube end shaping.
Background technology
U-shaped steel pipe is the basic part for manufacturing Novel steel tube bank building structure wall body construction, it is the thin steel strip by fixed width
It is process through U-shaped steel forming production line clod wash.The specification of U-shaped steel pipe needed for steel pipe bundle structure wall component is：Length model
About 4000-12000mm is enclosed, thickness range is about 130-200mm, and altitude range is about 180-240mm, and steel pipe plate thickness is about
For 4-8mm.
U-shaped steel pipe is processed through cold roll forming production line, is needed in the tail portion of production line, one is combined into using with production line
The cutting modes such as the online punching of body carry out fixed ruler cutting to U-shaped steel pipe, so as to obtain the U-shaped steel pipe of specific length, are shearing
The stress release that U-shaped steel tube end will be caused to be generated by clod wash in the process causes U-shaped steel pipe rear ends to deform, shows as U-shaped
The upper opening increase of steel pipe both ends, in font, majority has exceeded dimensional discrepancy as defined in U-shaped steel pipe, it is impossible to meet steel pipe
The production of binding component needs, and U-shaped steel pipe shapes of Fig. 1 a and Fig. 1 b respectively for Leading Edge Deformation and standard compares.
In order to which the U-shaped steel pipe overall length for processing U-shaped pipe production line can meet manufacturing requirements, then must grind
It sends out end shaping device a kind of, and it is made to form one with U-shaped steel production line, molding is made to be realized substantially automatically with re-shaping exercise
Change, while product quality is ensured with production efficiency, make full use of material, save cost of material.
Invention content
In order to overcome the clipped rear existing deformation defect of existing U-shaped steel tube end, the present invention, which provides one kind, can improve U steel
Pipe product quality, the equipment for U-shaped steel tube end shaping for improving utilization rate of raw materials.
The technical solution adopted by the present invention is：
For the equipment of U-shaped steel tube end shaping, the mainframe including being arranged on U-shaped steel pipe transport platform both sides is described
Mainframe is the supporting rack for installing punch die, it is characterised in that：It further includes mounted on the rear portion of mainframe for end will to be completed
The U-shaped steel pipe of shaping ejects the U steel ejection hydraulic cylinder onto workpiece conveying roller from the punch die of mainframe；
The upper and lower part of the mainframe be separately installed with for U-shaped steel tube end carry out shaping and phase interworking
The punch-pin and cavity plate used is closed, punch-pin fixed setting, the cavity plate can be along mainframe under the effect of punching press hydraulic cylinder
The guide rail of both sides moves up and down；
Conveying roller is installed, the conveying roller supports and rolls dragging U-shaped steel Guan Zuo in the U-shaped steel pipe transport platform
Right laterally operation；
The U-shaped steel pipe transport platform includes blanking conveying roller and shaping conveying roller and blanking transport platform, the blanking
The non-blanking end side of conveying roller is equipped with U-shaped steel pipe blanking hydraulic cylinder, and the U-shaped steel pipe blanking hydraulic cylinder is to reaching blanking
The U-shaped steel pipe side of designated position is pushed on end shaping conveying roller on conveying roller；
The outer end of the blanking transport platform is equipped with U steel discharge hydraulic cylinders, the head of the U steel discharge hydraulic cylinders
U steel pipe material-pulling devices U-shaped steel pipe to be pulled away to shaping conveying roller are installed.
The punching press hydraulic cylinder is mounted on the lower part of mainframe, and is connected with cavity plate, the punching press hydraulic cylinder band
Dynamic cavity plate moves up and down.
The conveying roller is by conveying roller frame in U-shaped steel pipe transport platform, under the conveying roller frame
Portion is equipped with for the U-shaped steel pipe of conveying roller to be driven to transmit electric power system, and the U-shaped steel pipe system that transmits electric power includes motor
With sprocket wheel chain transmission.
It is provided with to lead the U-shaped steel tube head for being prepared to enter into mainframe punch die in the feeding mouth side of the mainframe
To U-shaped steel pipe guide roller.
The equipment that the present invention is used for U-shaped steel tube end shaping, primary structure composition and functional character are as follows：
1) U steel ejection hydraulic cylinder：Mounted on mainframe rear portion, for the U-shaped steel pipe of end shaping will to be completed from mainframe
Punch die in ejection on workpiece conveying roller；
2) mainframe：Two sets are shared, positioned at U-shaped steel pipe transport platform both sides, as the supporting rack of installation punch die, is completed U-shaped
The shaping processing of steel tube end part；
3) punch-pin：Mainframe top is mounted and fixed on, shaping is carried out to U-shaped steel tube end with cavity plate cooperation, makes U-shaped steel
Pipe overall length all meets the requirement of shape technology.
4) cavity plate：Mounted on mainframe lower part, and can be under the drive of punching press hydraulic cylinder, along the guide rail of mainframe both sides
It moves up and down, coordinates with fixed punch-pin, shaping is carried out to U-shaped steel tube end, its appearance and size is made to meet the requirements.
5) U-shaped steel pipe guide roller：Have two groups, every group there are two roller, respectively symmetrically mounted on every mainframe feeding mouth side,
For being oriented to the U-shaped steel tube head for being prepared to enter into mainframe punch die.
6) U-shaped steel pipe transmits electric power system：Mounted on conveying roller frame lower, by motor and sprocket wheel chain transmission group
Into for driving conveying roller, to being pushed to the U-shaped steel pipe for the treating shaping realization left side in two mainframe centre positions by blanking roller-way
Right conveying drives the punch die in U-shaped steel pipe disengaging mainframe.
7) conveying roller：In the case where motor and sprocket wheel chain drive, support and roll dragging U-shaped steel pipe, realize left and right laterally fortune
Row passes in and out mainframe punch die, completes U-shaped steel tube end shaping.
8) U-shaped steel pipe blanking hydraulic cylinder：Mounted on the non-blanking end side of blanking conveying roller, after to Length-fixing cutting, reach
The U-shaped steel pipe of designated position on blanking conveying roller realizes that side pushes away, U-shaped steel pipe is made to be pushed on end shaping conveying roller, prepares left and right
Dragging enters mainframe punch die.
9) U steel discharge hydraulic cylinder：Mounted on blanking transport platform outer end, hydraulic pressure cylinder head is equipped with U steel pipe material-pulling devices, treats
U-shaped steel pipe both ends complete shaping after, thus hydraulic cylinder drive material-pulling device, by U-shaped steel pipe be pulled away from shaping conveying roller, and with it is preceding
The U-shaped steel pipe of face completion shaping discharge in blanking transport platform.
10) punching press hydraulic cylinder：Mounted on mainframe lower part, be connected with cavity plate, drive cavity plate move above and below, make its with it is convex
Mould coordinates, and realizes the shaping to U-shaped steel tube end.
11) U-shaped steel pipe transport platform：It is made of two parts, a part is blanking roller-way, and a part is shaping conveying roller under
Expect transport platform composition, the U-shaped steel pipe of Length-fixing cutting first is first transported to blanking roller-way, is pushed away by U-shaped steel pipe blanking hydraulic cylinder
Onto shaping conveying roller, after the completion for the treatment of shaping, then move the U-shaped steel pipe for completing shaping to blanking by U steel discharge hydraulic cylinders and convey
Platform and discharge.
12) U-shaped steel pipe component：The U-shaped steel pipe component through cold roll forming and Length-fixing cutting from U-shaped pipe production line, this
Invention equipment is exactly to carry out shaping to this U-shaped steel pipe both ends.
The specific production process of the present invention is as follows：
1st, U-shaped steel pipe reaches blanking conveying roller：U-shaped steel pipe through Length-fixing cutting, it is automatic accurate to be transported to blanking conveying roller
Upper corresponding position provides material for end re-shaping exercise and prepares；
2nd, U-shaped steel pipe reaches shaping conveying roller：U-shaped steel pipe on blanking roller-way, in U-shaped steel pipe blanking hydraulic cylinder
Under promotion, it is moved on shaping conveying roller；
3rd, U-shaped steel pipe left-hand is run：U-shaped steel pipe on shaping conveying roller drives conveying roller, and conveying through motor
Under the dragging of roller, laterally operation to the left into left side mainframe punch die, prepares the left part shaping of U-shaped steel pipe；
4th, left side mainframe shaping：After U-shaped steel pipe enters mainframe punch die to the left, punching press hydraulic cylinder drives cavity plate upward
Operation, cooperation punch-pin complete the shaping to U-shaped steel pipe left part, and then hydraulic cylinder drives cavity plate downlink to reset；
5th, U-shaped steel pipe dextrad is run：After shaping is completed in U-shaped steel pipe left part, the ejection hydraulic cylinder action of U steel pushes U-shaped steel
Pipe recesses mainframe punch die, and the reversion of shaping conveying roller drives U-shaped steel pipe right lateral, into right side mainframe punch die；
6th, right side mainframe shaping：It is identical with the 4th process after U-shaped steel pipe enters right side mainframe punch die, to U-shaped steel
The shaping of pipe right part；
7th, U-shaped steel pipe left-hand is run：The equal shaping in U-shaped steel pipe both ends finishes, then shaping conveying roller drives U-shaped steel pipe to the left
Operation makes until U-shaped steel pipe is located at the initial position of shaping conveying roller, in order to which U steel discharge Hydraulic Cylinder U-shaped steel pipes leave
Shaping conveying roller；
8th, U-shaped steel pipe discharge：When complete end shaping U-shaped steel pipe after initial position is returned on shaping conveying roller, U
Steel discharge hydraulic cylinder drives its head pulling plate, U-shaped steel pipe is pushed to be detached from shaping conveying roller, and processed with front in blanking transport platform
Good U-shaped steel pipe alignment discharge；
9th, it so moves in circles, you can end shaping is carried out to each single u-shaped steel pipe.
Beneficial effects of the present invention are embodied in：It improves U tube products quality, improve utilization rate of raw materials.
Description of the drawings
Fig. 1 a and Fig. 1 b are the deformation of U-shaped steel tube end and indeformable schematic diagram respectively.
Fig. 2 a are overall structure diagrams of the present invention.
Fig. 2 b, 2c and 2d are the partial enlarged view of 2a, 2b, 2c in Fig. 2 a respectively.
Fig. 3 a are side views of the present invention.
Fig. 3 b and Fig. 3 c are partial enlarged view at 3a and 3b in Fig. 3 a respectively.
Fig. 4 is vertical view of the present invention.
Specific embodiment
With reference to Fig. 2 a to Fig. 4, for the equipment of U-shaped steel tube end shaping, including being arranged on 11 both sides of U-shaped steel pipe transport platform
Mainframe 2, the mainframe 2 is the supporting rack for installing punch die, is further included mounted on the rear portion of mainframe 2 for will be complete
U-shaped steel pipe into end shaping ejects the U steel ejection hydraulic cylinder 1 onto workpiece conveying roller from the punch die of mainframe；
The upper and lower part of the mainframe 2 is separately installed with shaping and mutual for being carried out to U-shaped steel tube end
The punch-pin 3 being used cooperatively and cavity plate 4, the punch-pin 3 are fixedly installed, and the cavity plate 4 can under the effect of punching press hydraulic cylinder 10
It is moved up and down along the guide rail of 2 both sides of mainframe；
Conveying roller 7 is installed, the conveying roller 7 supports and rolls dragging U-shaped steel in the U-shaped steel pipe transport platform 11
The laterally operation of pipe 12 or so；
The U-shaped steel pipe transport platform 11 includes blanking conveying roller and shaping conveying roller and blanking transport platform, under described
The non-blanking end side of material conveying roller is equipped with U-shaped steel pipe blanking hydraulic cylinder 8, and the U-shaped steel pipe blanking hydraulic cylinder 8 is to reaching
The U-shaped steel pipe side of designated position is pushed on end shaping conveying roller on blanking conveying roller；
The outer end of the blanking transport platform is equipped with U steel discharges hydraulic cylinder 9, the head of the U steel discharges hydraulic cylinder 9
Portion is equipped with the U steel pipe material-pulling devices U-shaped steel pipe to be pulled away to shaping conveying roller.
The punching press hydraulic cylinder 10 is mounted on the lower part of mainframe 2, and is connected with cavity plate 4, the punching press hydraulic pressure
Cylinder 10 drives cavity plate 4 to move up and down.
The conveying roller 7 is mounted on by conveying roller frame in U-shaped steel pipe transport platform 11, the conveying roller frame
Lower part is equipped with for the U-shaped steel pipe of conveying roller to be driven to transmit electric power system 6, and the U-shaped steel pipe system 6 that transmits electric power includes
Motor and sprocket wheel chain transmission.
It is provided in the feeding mouth side of the mainframe 2 for the U-shaped steel tube head to being prepared to enter into mainframe punch die
The U-shaped steel pipe guide roller 5 of guiding.
The specific production process of the present embodiment is as follows：
1st, U-shaped steel pipe reaches blanking conveying roller：U-shaped steel pipe through Length-fixing cutting, it is automatic accurate to be transported to blanking conveying roller
Upper corresponding position provides material for end re-shaping exercise and prepares；
2nd, U-shaped steel pipe reaches shaping conveying roller：U-shaped steel pipe on blanking roller-way, in U-shaped steel pipe blanking hydraulic cylinder
Under promotion, it is moved on shaping conveying roller；
3rd, U-shaped steel pipe left-hand is run：U-shaped steel pipe on shaping conveying roller drives conveying roller, and conveying through motor
Under the dragging of roller, laterally operation to the left into left side mainframe punch die, prepares the left part shaping of U-shaped steel pipe；
4th, left side mainframe shaping：After U-shaped steel pipe enters mainframe punch die to the left, punching press hydraulic cylinder drives cavity plate upward
Operation, cooperation punch-pin complete the shaping to U-shaped steel pipe left part, and then hydraulic cylinder drives cavity plate downlink to reset；
5th, U-shaped steel pipe dextrad is run：After shaping is completed in U-shaped steel pipe left part, the ejection hydraulic cylinder action of U steel pushes U-shaped steel
Pipe recesses mainframe punch die, and the reversion of shaping conveying roller drives U-shaped steel pipe right lateral, into right side mainframe punch die；
6th, right side mainframe shaping：It is identical with the 4th process after U-shaped steel pipe enters right side mainframe punch die, to U-shaped steel
The shaping of pipe right part；
7th, U-shaped steel pipe left-hand is run：The equal shaping in U-shaped steel pipe both ends finishes, then shaping conveying roller drives U-shaped steel pipe to the left
Operation makes until U-shaped steel pipe is located at the initial position of shaping conveying roller, in order to which U steel discharge Hydraulic Cylinder U-shaped steel pipes leave
Shaping conveying roller；
8th, U-shaped steel pipe discharge：When complete end shaping U-shaped steel pipe after initial position is returned on shaping conveying roller, U
Steel discharge hydraulic cylinder drives its head pulling plate, U-shaped steel pipe is pushed to be detached from shaping conveying roller, and processed with front in blanking transport platform
Good U-shaped steel pipe alignment discharge；
9th, it so moves in circles, you can end shaping is carried out to each single u-shaped steel pipe.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (4)
1. for the equipment of U-shaped steel tube end shaping, the mainframe including being arranged on U-shaped steel pipe transport platform both sides, the master
Rack is to install the supporting rack of punch die, it is characterised in that：It further includes whole for end will to be completed mounted on the rear portion of mainframe
The U-shaped steel pipe of shape ejects the U steel ejection hydraulic cylinder onto workpiece conveying roller from the punch die of mainframe；
The upper and lower part of the mainframe be separately installed with for U-shaped steel tube end carry out shaping and cooperate make
Punch-pin and cavity plate, punch-pin fixed setting, the cavity plate can be along mainframe both sides under the effect of punching press hydraulic cylinder
Guide rail move up and down；
Conveying roller is installed, the conveying roller supports and rolls dragging U-shaped steel pipe or so horizontal stroke in the U-shaped steel pipe transport platform
To operation；
The U-shaped steel pipe transport platform includes blanking conveying roller and shaping conveying roller and blanking transport platform, blanking conveying
The non-blanking end side of roller is equipped with U-shaped steel pipe blanking hydraulic cylinder, and the U-shaped steel pipe blanking hydraulic cylinder is to reaching blanking conveying
The U-shaped steel pipe side of designated position is pushed on end shaping conveying roller on roller；
The outer end of the blanking transport platform is equipped with U steel discharge hydraulic cylinders, the head installation of the U steel discharge hydraulic cylinders
There are the U steel pipe material-pulling devices U-shaped steel pipe to be pulled away to shaping conveying roller.
2. it to be used for the equipment of U-shaped steel tube end shaping as described in claim 1, it is characterised in that：The punching press hydraulic cylinder
It is connected mounted on the lower part of mainframe, and with cavity plate, the punching press hydraulic cylinder drives cavity plate to move up and down.
3. it to be used for the equipment of U-shaped steel tube end shaping as claimed in claim 2, it is characterised in that：The conveying roller passes through
It conveys roller frame to be mounted in U-shaped steel pipe transport platform, the lower part of the conveying roller frame is equipped with the U for driving conveying roller
Shape steel tube transmits electric power system, and the U-shaped steel pipe system that transmits electric power includes motor and sprocket wheel chain transmission.
4. it to be used for the equipment of U-shaped steel tube end shaping as claimed in claim 3, it is characterised in that：In the mainframe
Feeding mouth side is provided with the U-shaped steel pipe guide roller for being oriented to the U-shaped steel tube head for being prepared to enter into mainframe punch die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611172180.7A CN106734384B (en) | 2016-12-17 | 2016-12-17 | For the equipment of U-shaped steel tube end shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611172180.7A CN106734384B (en) | 2016-12-17 | 2016-12-17 | For the equipment of U-shaped steel tube end shaping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734384A CN106734384A (en) | 2017-05-31 |
| CN106734384B true CN106734384B (en) | 2018-06-15 |
Family
ID=58892026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611172180.7A Active CN106734384B (en) | 2016-12-17 | 2016-12-17 | For the equipment of U-shaped steel tube end shaping |
Country Status (1)
| Country | Link |
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| CN (1) | CN106734384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273872B (en) * | 2018-04-04 | 2024-04-02 | 佛山职业技术学院 | Stainless steel pipe shaping equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623723A (en) * | 2009-07-03 | 2010-01-13 | 成都莱克冶金机械设备制造有限公司 | Horizontal type gas straighter |
| CN201537663U (en) * | 2009-11-15 | 2010-08-04 | 天津市津宝乐器有限公司 | Trumpet mouthpiece pipe trimmer |
| CN102294384A (en) * | 2011-09-08 | 2011-12-28 | 中国石油集团渤海石油装备制造有限公司 | Steel pipe diameter-shaping and straightening equipment |
| CN202239081U (en) * | 2011-06-30 | 2012-05-30 | 安徽中瑞机床制造有限公司 | Steel pipe straightener |
| CN206343482U (en) * | 2016-12-17 | 2017-07-21 | 杭萧钢构股份有限公司 | Equipment for U-shaped steel tube end part shaping |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59232620A (en) * | 1983-06-16 | 1984-12-27 | Sumitomo Metal Ind Ltd | O press equipment for UO molding |
| JP2002143929A (en) * | 2000-11-07 | 2002-05-21 | Sankyu Inc | Portable channel steel straightening machine |
-
2016
- 2016-12-17 CN CN201611172180.7A patent/CN106734384B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623723A (en) * | 2009-07-03 | 2010-01-13 | 成都莱克冶金机械设备制造有限公司 | Horizontal type gas straighter |
| CN201537663U (en) * | 2009-11-15 | 2010-08-04 | 天津市津宝乐器有限公司 | Trumpet mouthpiece pipe trimmer |
| CN202239081U (en) * | 2011-06-30 | 2012-05-30 | 安徽中瑞机床制造有限公司 | Steel pipe straightener |
| CN102294384A (en) * | 2011-09-08 | 2011-12-28 | 中国石油集团渤海石油装备制造有限公司 | Steel pipe diameter-shaping and straightening equipment |
| CN206343482U (en) * | 2016-12-17 | 2017-07-21 | 杭萧钢构股份有限公司 | Equipment for U-shaped steel tube end part shaping |
Also Published As
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|---|---|
| CN106734384A (en) | 2017-05-31 |
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Effective date of registration: 20221201 Address after: No. 305, Hongken Road, Hongken Farm, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province, 311200 Patentee after: Hangxiao Steel Structure (Zhejiang) Co.,Ltd. Address before: No. 305, Hongken Road, Xiaoshan Economic Development Zone, Xiaoshan District, Hangzhou, Zhejiang 311217 Patentee before: HANGXIAO STEEL STRUCTURE Co.,Ltd. |
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