CN112792185B - Hydraulic corrugated pipe forming equipment - Google Patents
Hydraulic corrugated pipe forming equipment Download PDFInfo
- Publication number
- CN112792185B CN112792185B CN202011536546.0A CN202011536546A CN112792185B CN 112792185 B CN112792185 B CN 112792185B CN 202011536546 A CN202011536546 A CN 202011536546A CN 112792185 B CN112792185 B CN 112792185B
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- block
- valve
- slide
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims description 9
- 230000001788 irregular Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 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
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/10—Corrugating tubes transversely, e.g. helically by applying fluid pressure
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/06—Corrugating tubes transversely, e.g. helically annularly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention relates to the technical field of corrugated pipe forming and discloses a hydraulic corrugated pipe forming device which comprises a cylinder, wherein a fixed disc is fixedly arranged at the bottom of a water inlet pipe, a through hole is formed in the left side of the fixed disc, a push rod is connected in a sliding manner in the through hole, an elastic rope is fixedly connected to the outer wall of the push rod, an attraction block is fixedly arranged on the inner wall of the fixed disc, a rotary disc is movably arranged in the fixed disc, and a material block is fixedly connected to the bottom of the rotary disc. The electromagnet on the turntable loses power supply and is not attracted by the attraction block, and the turntable is enabled to deflect anticlockwise to return to the initial position under the action of gravity of the object block fixedly installed at the bottom of the turntable, so that the ejector rod returns to the initial position, the magnet at the top of the ejector rod drives the valve block to enter the valve groove to block the valve groove, the water inlet pipeline is not conducted any more, and the effect of automatically closing the water inlet pipeline after the expansion of the straight pipe is finished is achieved.
Description
Technical Field
The invention relates to the technical field of corrugated pipe forming, in particular to hydraulic corrugated pipe forming equipment.
Background
The corrugated pipe is a tubular elastic sensing element formed by connecting foldable corrugated sheets along the folding and stretching directions. The bellows is widely used in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe has thinner pipe wall and higher sensitivity, and the measuring range is tens of Pa to tens of megaPa.
At present, in the manufacturing of the hydraulic corrugated pipe molding process, most operators control the water inflow according to experience, the molding equipment is possibly damaged by the extrusion of water pressure due to the excessive water inflow, and the functions of the molding equipment are single, so that only a straight pipe with a certain fixed length can be subjected to the hydraulic corrugated process operation, and the hydraulic corrugated pipe molding equipment is provided for solving the problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the hydraulic corrugated pipe forming equipment, which is provided with the water inlet pipeline which is automatically closed after the corrugated forming of the straight pipe, so that excessive water solution entering amount is avoided, the longer service life of the forming equipment is ensured, the equipment can adjust the distance between two stop blocks according to the pipe diameter length of the straight pipe, and the corrugated processing of the straight pipe with different sizes can be carried out.
(II) technical scheme
In order to realize the purposes that the water inlet pipeline is automatically closed after the straight pipe is corrugated and formed, the excessive entering amount of aqueous solution is avoided, the longer service life of forming equipment is ensured, the equipment can adjust the distance between two stop blocks according to the pipe diameter length of the straight pipe, and corrugated treatment can be carried out on the straight pipes with different sizes, the invention provides the following technical scheme: the utility model provides a hydraulic pressure bellows former, includes the drum, the slide has been seted up in the left side of drum, the inside sliding connection of slide has the pulley, the top fixed mounting of pulley has the circuit breaker, the inside sliding connection of slide top has the circuit joint, the right side fixed mounting of pulley has the dwang, the right side fixed mounting of dwang has the electro-magnet, the bottom fixed mounting of dwang has the dead lever, the top fixed mounting of dead lever has the spring, the top fixed mounting of dead lever has the pin, the inside movable mounting of slide has the slider, two the relative one side fixed mounting of slider has the baffle, the left side fixedly connected with inlet channel of drum, the inside fixed mounting of inlet channel has the valve groove, the inside sliding connection of inlet channel has the slide bar, the inside sliding connection of valve groove has the valve block, the bottom fixed mounting of slide bar has the fixed disc, the left side of fixed disc has the through-hole, the inside sliding connection of through-hole has the spring coupling, the inside fixed connection of the inner wall fixed connection of ejector pin has the carousel fixed disk, the fixed connection of inner wall of ejector pin has the carousel fixed disk.
Preferably, the inner wall of the slideway is fixedly provided with a hydrophobic layer film made of elastic materials.
Preferably, the circuit breaker is not connected into the circuit joint at first, and the circuit joint is far away from the circle center of the cylinder.
Preferably, the valve groove is formed by respectively installing two convex arc-shaped fixed blocks on the inner walls of two sides of the water inlet pipeline.
Preferably, the valve block is in a sphere shape, and the diameter of the valve block is larger than the minimum clearance of the valve groove, so that the valve block is beneficial to blocking the valve groove, and the water inlet pipeline is closed.
Preferably, the magnetism of the magnets at the bottom of the sliding rod is opposite to that of the magnets at the top of the ejector rod, the two magnets are attracted to each other, and the two magnets are located in the same vertical plane.
Preferably, the attraction block is made of ferrous metal and can attract the electromagnet to drive the turntable to deflect.
Preferably, the turntable is an irregular disk, the left side of the turntable is a concave disk, and the right side of the turntable is a convex disk.
(III) beneficial effects
Compared with the prior art, the invention provides the hydraulic corrugated pipe forming equipment, which has the following beneficial effects:
1. this water pressure bellows former through placing the straight tube inside the drum, this moment, switch on for the electro-magnet obtains power supply, thereby the electro-magnet of dwang right-hand member will adsorb on the straight tube inner wall, simultaneously, the baffle on right side removes towards the left side under the effect of electro-magnet attraction, make two baffles fasten the straight tube, simultaneously, the electro-magnet on the carousel left side gets the electricity and will be under the attraction piece effect on the fixed disc, make the carousel take place the deflection clockwise, because the carousel is irregular disc, will jack the ejector pin and stretch out after the carousel takes place the deflection, thereby under the effect of ejector pin top magnet, drive the slide bar and slide towards the left side in the valve groove inside, the valve groove is no longer blocked by the valve piece, thereby the inlet channel is irrigated towards the straight tube inner tube, the effect of changing interval between two baffles and automatic control inlet channel water has been reached according to straight tube length difference.
2. According to the hydraulic corrugated pipe forming equipment, a straight pipe is expanded through water pressure and moves towards the outer side of a circular shaft, as the electromagnet on a rotating rod is adsorbed to the inner wall of the straight pipe, the electromagnet moves towards the outer side of the circular shaft along with the expansion of the straight pipe, so that a pulley is driven to move towards the outer side of the circular shaft in a slideway, a circuit breaker at the top of the pulley is connected into a circuit joint, the electromagnet loses power supply, under the action of a spring which is stretched and straightened in the slideway, the rotating rod and a baffle return to an initial position, and simultaneously the electromagnet on a turntable loses power supply and is not attracted by an attraction block, so that the turntable is deflected anticlockwise to the initial position under the action of gravity of a material block fixedly installed at the bottom of the turntable, a push rod returns to the initial position, and a valve block is driven to enter the valve groove by means of a magnet at the top of the push rod, so that a water inlet pipe is not conducted any more, and the effect of automatically closing the water inlet pipe after the expansion of the straight pipe is achieved.
Drawings
FIG. 1 is a schematic diagram of a front view of a hydraulic bellows molding apparatus;
FIG. 2 is a schematic diagram of a cross-sectional view of a hydraulic bellows molding apparatus;
FIG. 3 is a schematic diagram of an electromagnet power loss control device;
FIG. 4 is a schematic structural view of a water inlet valve;
fig. 5 is a schematic structural view of a water inlet pipeline conduction control device.
In the figure: 1. a cylinder; 2. a slideway; 3. a pulley; 4. a circuit breaker; 5. a circuit connector; 6. a rotating lever; 7. an electromagnet; 8. a fixed rod; 9. a spring; 10. a stop lever; 11. a slide block; 12. a baffle; 13. a water inlet pipe; 14. a valve spool; 15. a slide bar; 16. a valve block; 17. a magnet; 18. a fixed disc; 19. a through hole; 20. a push rod; 21. an elastic rope; 22. a suction block; 23. a turntable; 24. and (5) a block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, a hydraulic corrugated pipe forming device comprises a cylinder 1, a slide 2 is arranged on the left side of the cylinder 1, a hydrophobic layer film made of elastic materials is fixedly arranged on the inner wall of the slide 2, a pulley 3 is connected in a sliding manner in the slide 2, a circuit breaker 4 is fixedly arranged at the top of the pulley 3, a circuit joint 5 is fixedly arranged on the inner wall of the top of the slide 2, the circuit breaker 4 is not connected into the circuit joint 5 in the beginning, the circuit joint 5 is far away from the center of the cylinder 1, a rotating rod 6 is fixedly arranged on the right side of the pulley 3, an electromagnet 7 is fixedly arranged on the right side of the rotating rod 6, a fixed rod 8 is fixedly arranged at the bottom of the rotating rod 6, a spring 9 is fixedly arranged at the top of the fixed rod 8, a stop lever 10 is fixedly arranged at the top of the fixed rod 8, a slide 11 is movably arranged in the slide 2, a baffle 12 is fixedly arranged at one side opposite to the two slide 11, the left side of the cylinder 1 is fixedly connected with a water inlet pipe 13, a valve groove 14 is fixedly arranged in the water inlet pipe 13, the valve groove 14 is formed by two convex arc-shaped fixed blocks which are respectively arranged on the inner walls of two sides of the water inlet pipe 13, a slide rod 15 is slidingly connected in the water inlet pipe 13, a valve block 16 is slidingly connected in the valve groove 14, the valve block 16 is in a sphere shape, the diameter of the valve block 16 is larger than the minimum clearance of the valve groove 14, the valve block 16 is beneficial to blocking the valve groove 14, the water inlet pipe 13 is closed, a magnet 17 is fixedly arranged at the bottom of the slide rod 15, the magnetism of the magnet 17 at the bottom of the slide rod 15 is opposite to that of the magnet 17 at the top of a push rod 20, the two magnets 17 are mutually attracted and are positioned in the same vertical plane, a fixed disc 18 is fixedly arranged at the bottom of the water inlet pipe 13, a through hole 19 is formed in the left side of the fixed disc 18, and a push rod 20 is slidingly connected in the through hole 19, the outer wall fixedly connected with elastic rope 21 of ejector pin 20, the inner wall fixed mounting of fixed disc 18 has attraction piece 22, and attraction piece 22 is made for the iron metal material, can attract electro-magnet 7 to drive carousel 23 and take place the deflection, and the inside movable mounting of fixed disc 18 has carousel 23, and carousel 23 is the irregular disc, and the left side of carousel 23 is the concave disc, and the right side of carousel 23 is the protruding disc, and the bottom fixedly connected with thing piece 24 of carousel 23.
Working principle: by placing the straight tube inside the cylinder 1, at this time, the power switch is turned on to enable the electromagnet 7 to obtain power supply, so that the electromagnet 7 at the right end of the rotating rod 6 will be adsorbed on the inner wall of the straight tube, meanwhile, the baffle 12 at the right side moves towards the left side under the attraction force of the electromagnet 7 to enable the two baffles 12 to fasten the straight tube, meanwhile, the electromagnet 7 at the left side of the turntable 23 is powered on to enable the turntable 23 to deflect clockwise under the action of the attraction block 22 on the fixed disc 18, because the turntable 23 is an irregular disc, after the turntable 23 deflects, the turntable 20 will be stretched out against the ejector rod 20, thereby driving the slide rod 15 to slide towards the left inside the water inlet pipeline 13 under the action of the magnet 17 at the top of the ejector rod 20, and the slide rod 15 drives the valve block 16 to move towards the left inside the valve groove 14, so that the valve groove 14 is not blocked by the valve block 16 any more, the water inlet pipeline 13 fills water to the inner cylinder of the straight pipe, the effects of changing the distance between the two baffles 12 and automatically controlling the water inlet pipeline 13 to flow water are achieved, the straight pipe is expanded by water pressure and moves towards the outer side of the circular shaft, the electromagnet 7 on the rotating rod 6 is adsorbed to the inner wall of the straight pipe, the electromagnet 7 is moved towards the outer side of the circular shaft along with the expansion of the straight pipe, the pulley 3 is driven to move towards the outer side of the circular shaft inside the slideway 2, the circuit breaker 4 at the top of the pulley 3 is connected into the circuit joint 5, the electromagnet 7 loses power supply, the rotating rod 6 and the baffles 12 return to the initial position under the action of the tensioning and straightening spring 9 inside the slideway 2, meanwhile, the electromagnet 7 on the rotating disc 23 loses power supply and is not attracted by the attraction block 22 any more, the rotary table 23 is enabled to deflect anticlockwise to return to the initial position under the action of gravity of the object block 24 fixedly arranged at the bottom of the rotary table 23, the ejector rod 20 is enabled to return to the initial position, the magnet 17 at the top of the ejector rod 20 drives the valve block 16 to enter the valve groove 14 to block the valve groove 14, the water inlet pipeline 13 is enabled to be not conducted any more, and the effect of automatically closing the water inlet pipeline 13 after the expansion of the straight pipe is finished is achieved.
In summary, according to the hydraulic corrugated pipe forming device, the straight pipe is placed inside the cylinder 1, at this time, the power switch is turned on, so that the electromagnet 7 at the right end of the rotating rod 6 obtains power supply, and therefore the electromagnet 7 at the right end of the rotating rod 6 will be adsorbed on the inner wall of the straight pipe, meanwhile, the baffle 12 at the right side moves towards the left side under the attraction force of the electromagnet 7, so that the two baffles 12 fasten the straight pipe, meanwhile, the electromagnet 7 at the left side of the turntable 23 is electrified under the action of the attraction block 22 on the fixed disc 18, so that the turntable 23 deflects clockwise, and because the turntable 23 is an irregular disc, after the turntable 23 deflects, the turntable will push the ejector rod 20 to stretch out, and under the action of the magnet 17 at the top of the ejector rod 20, the slide rod 15 is driven to slide towards the left side inside the water inlet pipe 13, and the slide rod 15 drives the valve block 16 to move towards the left inside the valve groove 14, so that the valve groove 14 is not blocked by the valve block 16, and thus the water inlet pipe 13 is irrigated towards the straight pipe, the distance between the two baffles 12 is changed, and the effect of automatically controlling water inlet pipe 13 according to different lengths of the straight pipe is achieved.
In addition, the hydraulic corrugated pipe forming equipment expands the straight pipe through water pressure, the straight pipe expands towards the outer side of the circular shaft, the electromagnet 7 on the rotating rod 6 is adsorbed to the inner wall of the straight pipe, the electromagnet 7 moves towards the outer side of the circular shaft along with the expansion of the straight pipe, the pulley 3 is driven to move towards the outer side of the circular shaft inside the slideway 2, the circuit breaker 4 at the top of the pulley 3 is connected into the circuit joint 5, the electromagnet 7 loses power supply, the rotating rod 6 and the baffle 12 return to the initial position under the action of the stretched and straightened spring 9 inside the slideway 2, meanwhile, the electromagnet 7 on the turntable 23 loses power supply and is not attracted by the attraction block 22, the turntable 23 is deflected anticlockwise to the initial position under the action of the gravity of the object block 24 fixedly arranged at the bottom of the turntable 23, the ejector rod 20 returns to the initial position, the valve block 16 is driven to enter the valve groove 14 by the magnet 17 at the top of the ejector rod 20, the valve groove 14 is blocked, the valve groove 14 is not conducted, and the effect of automatically closing the valve inlet pipe 13 after the expansion of the straight pipe is finished is achieved.
While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A hydraulic bellows forming device comprising a cylinder (1), characterized in that: slide (2) have been seted up in the left side of drum (1), the inside sliding connection of slide (2) has pulley (3), the top fixed mounting of pulley (3) has circuit breaker (4), the inner wall fixed mounting at slide (2) top has circuit joint (5), the right side fixed mounting of pulley (3) has dwang (6), the right side fixed mounting of dwang (6) has electro-magnet (7), the bottom fixed mounting of dwang (6) has dead lever (8), the top fixed mounting of dead lever (8) has spring (9), the top fixed mounting of dead lever (8) has pin (10), the inside movable mounting of slide (2) has slider (11), two the relative one side fixed mounting of slider (11) has baffle (12), the left side fixedly connected with inlet channel (13) of drum (1), the inside fixed mounting of inlet channel (13) has valve groove (14), the inside sliding connection of inlet channel (13) has slide bar (15), the top fixed mounting of dead lever (16) has magnet (17) of valve (16), the left side of the fixed disc (18) is provided with a through hole (19), the inside of the through hole (19) is connected with a push rod (20) in a sliding way, the outer wall of the push rod (20) is fixedly connected with an elastic rope (21), the inner wall of the fixed disc (18) is fixedly provided with an attraction block (22), the inside of the fixed disc (18) is movably provided with a rotary disc (23), and the bottom of the rotary disc (23) is fixedly connected with a material block (24);
the circuit breaker (4) is not connected into the circuit joint (5) at first, and the circuit joint (5) is far away from the circle center of the cylinder (1);
the valve groove (14) is formed by respectively installing two convex arc-shaped fixed blocks on the inner walls of the two sides of the water inlet pipeline (13);
the valve block (16) is spherical in shape and has a diameter greater than the minimum clearance of the valve spool (14).
2. A hydraulic bellows molding apparatus according to claim 1, wherein: the magnetism of the magnet (17) at the bottom of the sliding rod (15) is opposite to that of the magnet at the top of the ejector rod (20), and the two are positioned in the same vertical plane.
3. A hydraulic bellows molding apparatus according to claim 1, wherein: the suction block (22) is made of ferrous metal.
4. A hydraulic bellows molding apparatus according to claim 1, wherein: the rotary table (23) is an irregular disc, the left side of the rotary table (23) is a concave disc, and the right side of the rotary table (23) is a convex disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536546.0A CN112792185B (en) | 2020-12-23 | 2020-12-23 | Hydraulic corrugated pipe forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011536546.0A CN112792185B (en) | 2020-12-23 | 2020-12-23 | Hydraulic corrugated pipe forming equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112792185A CN112792185A (en) | 2021-05-14 |
| CN112792185B true CN112792185B (en) | 2024-01-19 |
Family
ID=75807306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011536546.0A Active CN112792185B (en) | 2020-12-23 | 2020-12-23 | Hydraulic corrugated pipe forming equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112792185B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB641389A (en) * | 1948-02-21 | 1950-08-09 | Standard Thomson Corp | Improvements in or relating to method and apparatus for forming bellows folds in tubing |
| GB917806A (en) * | 1958-12-11 | 1963-02-06 | Mads Clausen | A method of manufacturing bellows from a tube blank and bellows manufactured by this method |
| JP2004330255A (en) * | 2003-05-08 | 2004-11-25 | Yamamoto Suiatsu Kogyosho:Kk | Hydroforming apparatus |
| CN203678972U (en) * | 2013-11-04 | 2014-07-02 | 南京三邦金属复合材料有限公司 | Expansion joint hydroforming automatic control device |
| CN206578168U (en) * | 2017-03-07 | 2017-10-24 | 福州诺贝尔福基机电有限公司 | Straight tube corrugation forming apparatus |
| JP2018024021A (en) * | 2016-08-05 | 2018-02-15 | 株式会社昭和螺旋管製作所 | Method of forming metal bellows pipe provided with liquid amount adjusting mechanism and forming apparatus of the same |
| CN110465568A (en) * | 2019-08-13 | 2019-11-19 | 合肥宁泰真空设备有限公司 | A kind of thin-wall corrugated tube process equipment |
| CN110735984A (en) * | 2019-10-24 | 2020-01-31 | 吴学伦 | high-sealing corrugated pipe connecting device convenient to mount |
| CN111774458A (en) * | 2020-09-07 | 2020-10-16 | 浙大宁波理工学院 | Forming process of superfine long corrugated pipe |
| CN111872187A (en) * | 2020-06-30 | 2020-11-03 | 韩阳 | Forming system of bellows |
-
2020
- 2020-12-23 CN CN202011536546.0A patent/CN112792185B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB641389A (en) * | 1948-02-21 | 1950-08-09 | Standard Thomson Corp | Improvements in or relating to method and apparatus for forming bellows folds in tubing |
| GB917806A (en) * | 1958-12-11 | 1963-02-06 | Mads Clausen | A method of manufacturing bellows from a tube blank and bellows manufactured by this method |
| JP2004330255A (en) * | 2003-05-08 | 2004-11-25 | Yamamoto Suiatsu Kogyosho:Kk | Hydroforming apparatus |
| CN203678972U (en) * | 2013-11-04 | 2014-07-02 | 南京三邦金属复合材料有限公司 | Expansion joint hydroforming automatic control device |
| JP2018024021A (en) * | 2016-08-05 | 2018-02-15 | 株式会社昭和螺旋管製作所 | Method of forming metal bellows pipe provided with liquid amount adjusting mechanism and forming apparatus of the same |
| CN206578168U (en) * | 2017-03-07 | 2017-10-24 | 福州诺贝尔福基机电有限公司 | Straight tube corrugation forming apparatus |
| CN110465568A (en) * | 2019-08-13 | 2019-11-19 | 合肥宁泰真空设备有限公司 | A kind of thin-wall corrugated tube process equipment |
| CN110735984A (en) * | 2019-10-24 | 2020-01-31 | 吴学伦 | high-sealing corrugated pipe connecting device convenient to mount |
| CN111872187A (en) * | 2020-06-30 | 2020-11-03 | 韩阳 | Forming system of bellows |
| CN111774458A (en) * | 2020-09-07 | 2020-10-16 | 浙大宁波理工学院 | Forming process of superfine long corrugated pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112792185A (en) | 2021-05-14 |
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