CN114130871A - Electric pipe bender - Google Patents
Electric pipe bender Download PDFInfo
- Publication number
- CN114130871A CN114130871A CN202111361290.9A CN202111361290A CN114130871A CN 114130871 A CN114130871 A CN 114130871A CN 202111361290 A CN202111361290 A CN 202111361290A CN 114130871 A CN114130871 A CN 114130871A
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- Prior art keywords
- box body
- profiling
- shaft
- upper side
- vertical
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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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 238000005452 bending Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 241001631030 Explorator Species 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 26
- 238000010276 construction Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000032369 Primary transmission Diseases 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- -1 steam Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses an electric pipe bender which comprises a transmission box body, a cantilever workbench, a driving device, a profiling device and a clamping device, wherein the transmission box body is supported on the ground, the cantilever workbench is of an inverted L-shaped box body structure and comprises a vertical box body and a horizontal box body which are fixedly connected into a whole, and the bottom of the vertical box body is fixed on the upper side of one end of the transmission box body. The driving device comprises a motor and a speed reduction transmission mechanism, the motor is vertically arranged on the upper side of the other end of the transmission box body, the speed reduction transmission mechanism is arranged in the transmission box body, and the profiling device is connected with the speed reduction transmission mechanism; the clamping device is arranged on the upper side of the horizontal box body. The pipe bending machine has compact structure and small volume, is convenient for pipe bending on the ship loading site, solves the problems that the pipe manufacturing adjusting pipe needs to be loaded and unloaded for multiple times, has complex manufacturing and lower working efficiency and manufacturing precision, and obviously improves the manufacturing working efficiency and bending quality of the pipe manufacturing adjusting pipe.
Description
Technical Field
The invention relates to a pipe bender, in particular to a pipe bender which adopts a motor as a power source and bends a medium and small steel pipe with the diameter of 27 mm-60 mm through mechanical transmission, belonging to the technical field of plastic forming of metal materials.
Background
The ship pipeline is used for conveying fuel oil, water, steam, hydraulic oil and the like, penetrates through an upper cabin and a lower cabin of a ship, and is divided into a pipeline manufacturing completion pipe and a pipeline manufacturing adjustment pipe, the pipeline manufacturing completion pipe is generally processed in a workshop in the field, batch pipe bending is carried out in the workshop through a hydraulic pipe bending machine, after manufacturing, a series of post-treatment processes such as pipeline pickling, passivation, galvanizing and the like are carried out, and then the batch pipe bending pipe is hoisted and mounted on the ship. The full-rotation tugboat has limited space, so that the workshop outfield manufacturing of the pipeline manufacturing adjusting pipe connected with the ship equipment needs to acquire pipeline manufacturing size information on the ship loading site, manufacture the pipeline manufacturing adjusting pipe according to the site size information, after the pipeline manufacturing adjusting pipe is manufactured, the pipeline manufacturing adjusting pipe is loaded on the ship for trial assembly and check, if no problem exists, the pipeline manufacturing adjusting pipe is disassembled, then the pipeline manufacturing adjusting pipe is unloaded from the ship, the welding line is polished, acid cleaning and galvanizing treatment are carried out, and finally the pipeline manufacturing adjusting pipe is lifted and loaded on the ship for installation. When the problems of non-uniform installation occur during trial assembly of the pipeline manufacturing adjusting pipe of the outfield bent pipe processing, the pipeline manufacturing adjusting pipe needs to be lifted and taken off the ship again, the hydraulic pipe bender is used again in a workshop to perform small-range adjusting bending, time and labor are wasted, and work efficiency is low.
Disclosure of Invention
The invention aims to provide an electric pipe bender capable of being constructed on a ship, which can improve the construction efficiency and the construction quality of manufacturing an adjusting pipe by matching a pipeline on site.
The invention is realized by the following technical scheme:
an electric pipe bender comprises a transmission box body, a cantilever workbench, a driving device, a profiling device and a clamping device, wherein the transmission box body is supported on the ground, the cantilever workbench is of an inverted L-shaped box body structure and comprises a vertical box body and a horizontal box body which are fixedly connected into a whole, and the bottom of the vertical box body is fixed on the upper side of one end of the transmission box body; the driving device comprises a motor and a speed reduction transmission mechanism, the motor is vertically arranged on the upper side of the other end of the transmission box body, the speed reduction transmission mechanism is arranged in the transmission box body, and the profiling device is connected with the speed reduction transmission mechanism; the clamping device is arranged on the upper side of the horizontal box body.
The object of the invention is further achieved by the following technical measures.
Furthermore, the speed reduction transmission mechanism comprises a motor gear, a primary driven gear, a secondary driving gear, a secondary driven gear, a first shaft, a second shaft and a vertical shaft, wherein the motor gear, the primary driven gear, the secondary driving gear, the first shaft, the second shaft and the vertical shaft are positioned in the transmission box; the motor gear is meshed with the first-stage driven gear, and the second-stage driving gear is meshed with the second-stage driven gear; the first shaft and the second shaft are vertically arranged in the transmission box body, the two ends of the first shaft and the lower end of the second shaft are respectively supported in corresponding bearing seats through bearings, and the bearing seats are respectively fixed in an upper side plate of the transmission box body and on a bottom plate of the transmission box body; the upper end of the vertical shaft penetrates through a vertical box body separating top plate of the inverted L-shaped box body and is supported in an upper bearing seat through an upper bearing, and the upper bearing seat is fixed on the upper side of the vertical box body separating top plate; the lower end of the vertical shaft penetrates through a bottom plate of the vertical box body, and is supported in a lower bearing seat through a lower bearing, the lower bearing seat is fixed on the upper side of the bottom plate of the vertical box body, and the end head of the upper end of the vertical shaft is fixedly connected with a profiling device; the lower end head of the vertical shaft is connected with the upper end head of the second shaft through a coupler; the clamping device arranged on the upper side of the horizontal box body of the inverted L-shaped box body is adjacent to the profiling device.
Furthermore, the profiling device comprises a profiling, a supporting plate and a gasket, wherein a profiling ring groove with the arc radius matched with the outer diameter of the bent steel pipe is arranged at the radial center of the side face of the profiling, the gasket is fixed at the center of the upper side of the top plate of the vertical box body, the supporting plate is positioned between the profiling and the gasket, a positioning block extending out of the upper side of the supporting plate is embedded into a positioning groove at the lower side of the profiling, and the end head of the upper end of the vertical shaft sequentially penetrates through the gasket, the supporting plate and the centre of the profiling and is respectively and fixedly connected with the supporting plate and the profiling; the plane projection of the explorator is q-shaped, and the concave circular arc radius of the explorator ring groove smoothly extends to form a side surface central concave circular arc radius R of a q-shaped straight edge with the same size; the profiling is adjacent to a clamping device arranged on the upper side of the horizontal box body. The ratio A/R = 0.64-0.68 of the length A of the q-shaped straight side to the radius R of the master form.
Furthermore, the clamping device comprises 2 rollers and roller pins, as well as a roller seat, a slide rail, a screw rod nut, a screw rod supporting seat and a rotating handle, wherein the 2 rollers are embedded into the notches of the roller seat side by side, and the rollers and the roller seat are respectively vertically inserted into the notches and hinged with the roller pins of the roller seat; the roller is adjacent to the profiling ring groove, and the radius of the arc surface of the roller is matched with the radius of the concave arc of the profiling ring groove; the slide rail is fixed at the upside of horizontal split box, and the gyro wheel seat downside inlays on the slide rail, and lead screw one end is articulated with gyro wheel seat middle part, and the lead screw other end closes with screw-nut soon, screw-nut fixes in the lead screw supporting seat, the lead screw supporting seat is fixed on horizontal split box other end, lead screw other end and twist grip one end fixed connection.
The pipe bending device is compact in structure and small in size, facilitates pipe bending on the ship loading site, and solves the problems that adjusting pipes need to be loaded and unloaded for multiple times, the manufacturing is complicated, and the working efficiency and the manufacturing precision are low. The ratio A/R1= 0.64-0.68 of the straight edge length A of the explorator to the explorator radius R1, so that the straight edge length A of the explorator reaches more than two thirds of the explorator radius R, the bent steel pipe is clamped between the concave circular arc at the center of the straight edge side surface of the explorator and the circular arc surfaces of the two rollers, and the pipe bending mode with two points and one line is realized. An operator pushes the screw rod to drive the two rollers in the roller seat to clamp the bent steel pipe by rotating the rotating handle of the clamping device, the profiling mold slowly rotates, and the concave circular arc at the side center of the straight edge of the profiling mold limits the bent steel pipe, so that the field bending forming of the pipeline manufacturing adjusting pipe is realized. The invention also enables spatial angular bending. If the bending angle or the size is not consistent, the pipe can be reformed on site, the speed and the efficiency are high, and the manufacturing efficiency and the bending quality of the adjusting pipe manufactured by the pipeline are obviously improved.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the invention comprises a transmission case 1, a cantilever workbench 2, a driving device 3, a profiling device 4 and a clamping device 5, wherein the transmission case 1 and the cantilever workbench 2 are both in welded case structures, the transmission case 1 is supported on the ground, the cantilever workbench 2 is in an inverted L shape and comprises a vertical sub case 21 and a horizontal sub case 22 which are welded into a whole, and the bottom of the vertical sub case 21 is fixed on a round cushion plate 212 on the upper side of the left end of the transmission case 1 through a plurality of screws 211.
The driving device 3 comprises a motor 31 and a speed reducing transmission mechanism 32, the motor 31 is a flange motor and is vertically fixed on the upper side of the right end of the transmission box body 1, the speed reducing transmission mechanism 32 is arranged in the transmission box body 1 and is connected with the profiling device 4 on the top surface of the vertical branch box body 21 through a vertical shaft 327 in the vertical branch box body 21, the motor 31 of the embodiment adopts a Y132S-8 type three-phase asynchronous motor, the power is N =2.2KW, and the rotating speed is N =720 r/min.
The reduction transmission mechanism 32 comprises a motor gear 321, a primary driven gear 322, a secondary driving gear 323, a secondary driven gear 324, a first shaft 325, a second shaft 326 and a vertical shaft 327 which are positioned in the transmission case 1, wherein a motor shaft 311 vertically extends downwards into the transmission case 1, the motor gear 321 is fixed on the motor shaft 311, the primary driven gear 322 and the secondary driving gear 323 are respectively fixed on the upper end and the middle part of the first shaft 325 in an up-and-down manner, and the secondary driven gear 324 is fixed on the middle part of the second shaft 326. The motor gear 321 is engaged with the primary driven gear 323, and the secondary driving gear 323 is engaged with the secondary driven gear 322. The first shaft 325 and the second shaft 326 are vertically arranged in the transmission case 1, two ends of the first shaft 325 and the lower end of the second shaft 326 are respectively supported in corresponding bearing seats 329 through bearings 328, and the bearing seats 329 are respectively fixed in the upper side plate 11 of the transmission case 1 and on the bottom plate 12 of the transmission case 1. The upper end of the vertical shaft 327 penetrates through the vertical box body top plate 213 and is supported in the upper bearing seat 215 through the upper bearing 214, and the upper bearing seat 215 is fixed on the upper side of the vertical box body top plate 213. The lower end of the vertical shaft 327 penetrates through the bottom plate 216 of the vertical box body, and is supported in a lower bearing seat 218 through a lower bearing 217, the lower bearing seat 218 is fixed on the upper side of the bottom plate 216 of the vertical box body, and the upper end head of the vertical shaft 327 is fixedly connected with the profiling device 4. The lower end of the vertical shaft 327 is connected with the upper end of the second shaft 326 through a coupling 33.
The profile modeling device 4 is arranged on the top surface of the vertical box body 21 and comprises a profile modeling 41, a supporting plate 42 and a gasket 43, a profile modeling ring groove 411 with the arc radius matched with the outer diameter of the bent steel pipe 10 is arranged at the radial center of the side surface of the profile modeling 41, the gasket 413 is fixed at the center of the upper side of the top plate 213 of the vertical box body, the supporting plate 42 is positioned between the profile modeling 41 and the gasket 43, and a positioning block 421 extending out of the upper side of the supporting plate 42 is embedded in a positioning groove 412 at the lower side of the profile modeling 41. The speed reduction transmission mechanism 32 drives the support plate 42 to rotate through the vertical shaft 327, so as to drive the explorator 41 to rotate to complete the bending of the steel pipe.
The upper end of the vertical shaft 327 passes through the center of the washer 43, the support plate 42 and the master form 41 in sequence, and is fixedly connected with the support plate 42 and the master form 41 through 3 flat keys 44 arranged at intervals. The plane projection of the explorator 41 is q-shaped, the concave arc radius of the explorator ring groove 411 smoothly extends to be the side surface center concave arc radius R of the q-shaped straight edge 413 with the same size, so that the bent steel pipe 10 is clamped between the explorator ring groove 411 and the arc surfaces of the two rollers 51, and the pipe bending mode of two points and one line can be realized. The ratio of the length A of the profile modeling straight edge 41 to the profile modeling radius R1, namely A/R1= 0.64-0.68, and the ratio of the length A of the profile modeling straight edge 41 to the profile modeling radius R1, namely A/R1=0.66 in the embodiment, enables the length A of the profile modeling straight edge 413 to reach two thirds of the profile modeling radius R1, so that the bent steel pipe is clamped between the concave circular arc at the center of the side surface of the straight edge of the profile modeling 41 and the circular arc surfaces of the two rollers, the profile modeling straight edge 413 reliably limits the steel pipe 10 which is being bent, the steel pipe is prevented from being twisted and deformed, and the quality of bent pipes is improved.
The clamping device 5 comprises 2 rollers 51 and roller pins 52, as well as a roller seat 53, a slide rail 54, a screw 55, a screw nut 56, a screw support seat 57 and a rotating handle 58, wherein the 2 rollers 51 are embedded into the notch of the roller seat 53 side by side, the rollers 51 and the roller seat 53 are hinged with the roller pins 52 of the roller seat 53 through vertical insertion respectively, the rollers 51 are adjacent to the profiling ring groove 411, and the radius R of the arc surface of the rollers 51 is matched with the radius R of the concave arc of the profiling ring groove 411. The slide rail 54 is fixed on the upper side of the horizontal split box 22, the lower side of the roller seat 53 is embedded on the slide rail 54, the left end of the screw rod 55 is hinged with the middle of the roller seat 53, the right end of the screw rod 55 is screwed with the screw rod nut 56, the screw rod nut 56 is fixed in the screw rod support seat 57, the screw rod support seat 57 is fixed on the right end of the horizontal split box 22, and the end head of the right end of the screw rod 55 is fixedly connected with one end 58 of the rotating handle.
The embodiment can be used for bending the steel pipe with the outer diameter phi of 27 mm-phi 60mm and the wall thickness of 3 mm-4 mm, and only the explorator 41 and the roller 51 with corresponding specifications need to be replaced, so that the universality of the invention is improved.
The speed reducing transmission mechanism 32 of the embodiment is a two-stage speed reducing transmission mechanism, the primary transmission ratio and the secondary transmission ratio are both 8, the total transmission ratio i =64, and the rotation speed N =720r/min of the motor 31, so that the rotation speed N =720/64=11.25r/min of the profile 41, and the torque T =9550 × N/N =611200Nm, so that the profile 41 has enough large torque to facilitate the forming of the bent pipe.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (5)
1. An electronic bending machine which characterized in that: the cantilever type hydraulic power transmission device comprises a transmission box body, a cantilever workbench, a driving device, a profiling device and a clamping device, wherein the transmission box body is supported on the ground, the cantilever workbench is of an inverted L-shaped box body structure and comprises a vertical box body and a horizontal box body which are fixedly connected into a whole, and the bottom of the vertical box body is fixed on the upper side of one end of the transmission box body; the driving device comprises a motor and a speed reduction transmission mechanism, the motor is vertically arranged on the upper side of the other end of the transmission box body, the speed reduction transmission mechanism is arranged in the transmission box body, and the profiling device is connected with the speed reduction transmission mechanism; the clamping device is arranged on the upper side of the horizontal box body.
2. The motorized bender according to claim 1, wherein: the speed reduction transmission mechanism comprises a motor gear, a primary driven gear, a secondary driving gear, a secondary driven gear, a first shaft, a second shaft and a vertical shaft which are positioned in a transmission box body, a motor shaft vertically extends downwards into the transmission box body, the motor gear is fixed on the motor shaft, the primary driven gear and the secondary driving gear are respectively fixed on the upper end and the middle part of the first shaft up and down, and the secondary driven gear is fixed on the middle part of the second shaft; the motor gear is meshed with the first-stage driven gear, and the second-stage driving gear is meshed with the second-stage driven gear; the first shaft and the second shaft are vertically arranged in the transmission box body, the two ends of the first shaft and the lower end of the second shaft are respectively supported in corresponding bearing seats through bearings, and the bearing seats are respectively fixed in an upper side plate of the transmission box body and on a bottom plate of the transmission box body; the upper end of the vertical shaft penetrates through a top plate of the vertical box body, and is supported in an upper bearing seat through an upper bearing, and the upper bearing seat is fixed on the upper side of the top plate of the vertical box body; the lower end of the vertical shaft penetrates through a bottom plate of the vertical box body, and is supported in a lower bearing seat through a lower bearing, the lower bearing seat is fixed on the upper side of the bottom plate of the vertical box body, and the end head of the upper end of the vertical shaft is fixedly connected with a profiling device; the lower end head of the vertical shaft is connected with the upper end head of the second shaft through a coupler; the clamping device arranged on the upper side of the horizontal box body is adjacent to the profiling device.
3. The motorized bender according to claim 2, wherein: the profiling device comprises a profiling, a supporting plate and a gasket, wherein a profiling ring groove with the arc radius matched with the outer diameter of a bent steel pipe is arranged at the radial center of the side face of the profiling, the gasket is fixed at the center of the upper side of a top plate of the vertical box body, the supporting plate is positioned between the profiling and the gasket, a positioning block extending out of the upper side of the supporting plate is embedded into a positioning groove in the lower side of the profiling, and the end head of the upper end of the vertical shaft sequentially penetrates through the centers of the gasket, the supporting plate and the profiling and is fixedly connected with the supporting plate and the profiling respectively; the plane projection of the explorator is q-shaped, and the concave circular arc radius of the explorator ring groove smoothly extends to form a side surface central concave circular arc radius R of a q-shaped straight edge with the same size; the profiling is adjacent to a clamping device arranged on the upper side of the horizontal box body.
4. The motorized bender according to claim 3, wherein: the ratio of the length A of the q-shaped straight edge to the profiling radius R1 is A/R1= 0.64-0.68.
5. The motorized bender according to claim 3, wherein: the clamping device comprises 2 rollers and roller pins, as well as a roller seat, a slide rail, a screw rod nut, a screw rod supporting seat and a rotating handle, wherein the 2 rollers are embedded into the notches of the roller seat side by side, and the rollers and the roller seat are respectively vertically inserted and hinged with the roller pins of the roller seat; the roller is adjacent to the profiling ring groove, and the radius of the arc surface of the roller is matched with the radius of the concave arc of the profiling ring groove; the slide rail is fixed at the upside of horizontal split box, and the gyro wheel seat downside inlays on the slide rail, and lead screw one end is articulated with gyro wheel seat middle part, and the lead screw other end closes with screw-nut soon, screw-nut fixes in the lead screw supporting seat, the lead screw supporting seat is fixed on horizontal split box other end, lead screw other end and twist grip one end fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111361290.9A CN114130871A (en) | 2021-11-17 | 2021-11-17 | Electric pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111361290.9A CN114130871A (en) | 2021-11-17 | 2021-11-17 | Electric pipe bender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114130871A true CN114130871A (en) | 2022-03-04 |
Family
ID=80389863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111361290.9A Pending CN114130871A (en) | 2021-11-17 | 2021-11-17 | Electric pipe bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114130871A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406323B1 (en) * | 2003-05-20 | 2003-11-28 | Daejin Hydraulic Equipment & T | Pipe bending machine |
| CN104492885A (en) * | 2014-12-02 | 2015-04-08 | 江苏武进不锈股份有限公司 | Automatic tube bending machine |
| CN204396560U (en) * | 2014-12-19 | 2015-06-17 | 江西荣和特种消防设备制造有限公司 | A kind of desk-top automatic pipebender |
| CN205869146U (en) * | 2016-08-05 | 2017-01-11 | 牟国庆 | Tube bending machine |
| CN206936079U (en) * | 2017-08-01 | 2018-01-30 | 江苏建友工程机械有限公司 | A kind of engineering guardrail bending machine |
| CN107952847A (en) * | 2017-11-26 | 2018-04-24 | 卢锦福 | A kind of new bend pipe shaping apparatus |
-
2021
- 2021-11-17 CN CN202111361290.9A patent/CN114130871A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100406323B1 (en) * | 2003-05-20 | 2003-11-28 | Daejin Hydraulic Equipment & T | Pipe bending machine |
| CN104492885A (en) * | 2014-12-02 | 2015-04-08 | 江苏武进不锈股份有限公司 | Automatic tube bending machine |
| CN204396560U (en) * | 2014-12-19 | 2015-06-17 | 江西荣和特种消防设备制造有限公司 | A kind of desk-top automatic pipebender |
| CN205869146U (en) * | 2016-08-05 | 2017-01-11 | 牟国庆 | Tube bending machine |
| CN206936079U (en) * | 2017-08-01 | 2018-01-30 | 江苏建友工程机械有限公司 | A kind of engineering guardrail bending machine |
| CN107952847A (en) * | 2017-11-26 | 2018-04-24 | 卢锦福 | A kind of new bend pipe shaping apparatus |
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Application publication date: 20220304 |
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