CN101722211B - Open type built-in stainless steel dual-metal spiral composite pipe forming device - Google Patents
Open type built-in stainless steel dual-metal spiral composite pipe forming device Download PDFInfo
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- CN101722211B CN101722211B CN 200810224848 CN200810224848A CN101722211B CN 101722211 B CN101722211 B CN 101722211B CN 200810224848 CN200810224848 CN 200810224848 CN 200810224848 A CN200810224848 A CN 200810224848A CN 101722211 B CN101722211 B CN 101722211B
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- roller bearing
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- shaping mould
- bracing frame
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Abstract
The invention relates to an open type built-in stainless steel thermometal spiral composite pipe forming device mainly consisting of a forming mould (1) and a forming angle regulator (2), wherein support frames (11) and supports (19) are fixedly connected into a support structure of the forming mould (1), a rolling shaft (12) is installed between the support frames (11) through rolling shaft bearings (13), a ball support sleeve (16) of balls (12) is sleeved on the outer circumferential face of an inner support sleeve (17), balls (15) are spirally and uniformly distributed on the ball supporting sleeve (16) along the circumference and contact with the inner circumferential face of a forming pipe (30) which is made of a metal strap material (31) between the balls (15) and the balls (12) in a spiral coiling and forming mode, and the forming angle regulator (2) is used for regulating the forming angle of the forming mould (1). The invention is used for forming pipes with various wall thicknesses, and has the advantages of simple structure, low manufactured cost and simple and easy use, maintenance and repair.
Description
Technical field
The present invention relates to a kind of forming manufacturing equipment of metallic coil, relate in particular to the double metal spiral compound pipe molding device.
Background technology
At present, produce the method for composite bimetal pipe both at home and abroad, mainly contain mechanical expanding shaping, explosive forming and Hydraulic Expansion and close forming process.It is inner tube plastic deformation, the outer tube strain that realizes multiple tube by rolling swollen axle revolution extruding that mechanical expanding is shaped, thereby the outer tube of multiple tube produces residual stress to inner tube, to reach fitting tightly of outer pipe of composite pipe inwall and multiple tube inner tube outer wall.This method has the following disadvantages: production efficiency is not high, rolls swelling pressure power inequality in addition, is difficult to carry out theory analysis, and mainly dependence experience of expanded joint quality guarantees; Often need repeatedly to roll when adhesive force is not enough between two pipes in the manufacturing swollen, the easy like this decline that causes attenuate, cracking or the resistance to corrosion of lining.The explosive forming method is to produce shock wave by explosive charge to make inner tube and outer tube combined shaping.The method major defect is to be difficult to accurately determine for long multiple tube explosive charge, and have certain risk, processing cost is higher, production efficiency is lower, labour intensity is larger.The hydraulic expanding-forming method is that inner and outer pipes is set in together, and to managing interior pressurization, along with overpressure raises, inner tube enters state of plastic deformation by elastic deformation, and is adjacent to outer tube.When overpressure reaches certain value, outer tube generation strain, two pipes fit tightly together, and behind interior pipe pressure removal, such as the elastic resilience of outer tube elastic resilience greater than inner tube, then inner and outer pipes fits tightly.Relatively front two kinds of methods, hydraulic expanding-forming produce multiple tube because inner tube repeatedly the process that rolls not, thereby interior pipe internal surface is without the work hardening phenomenon, and the attenuate effect is also not obvious; Again because when swollen closing, the suffered hydraulic pressure of inner tube is equally distributed, and easily control of size, can greatly reduce operating personnel's labour intensity, simultaneously required time of its production process shorter, production efficiency is higher.But the technological difficulties that hydraulic expanding-forming exists are the sealing problems that how to solve two-port hydraulic pressure; Simultaneously, because the hydraulic expanding-forming method is carried out at normal temperatures, only have inner tube that a small amount of plastic deformation occurs, strain only occurs in outer tube, and interface junction is combined into mechanical bond, and bond strength is undesirable.In addition, it is all huger that mechanical expanding shaping, explosive forming and Hydraulic Expansion close their employed equipment of forming process, take up an area wider, and compound pipeline complex pipeline that can only the production fixed dimension, the pipeline length of its production is generally 3～6 meters, can not produce continuously, has limited greatly the raising of productivity ratio, and their employed materials are generally seamless steel pipe or steel plate, and cost is higher.
Therefore the forming processing device that designs a kind of novel manufacturing composite bimetal pipe is very necessary.
Summary of the invention
According to background technology, the object of the invention is to avoid above-mentioned deficiency, provide a kind of and can accurately guarantee crudy, can produce continuously again, and simple in structure, floor space is little, for the manufacture of the open forming processing device of double metal spiral compound pipe.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of open double metal spiral compound pipe molding device, mainly formed by shaping mould (1) and forming angle adjuster (2), wherein: the two ends of shaping mould (1) are respectively arranged with bracing frame (11), bracing frame (11) is fixed together by bolt and bearing (19), the common supporting construction that consists of shaping mould (1), bearing (19) is made of two blocks of T shape side plates (191) and a cross base plate (192), be bolted to connection, metal belting (31) entrance A is arranged on the gap, lower-left of T shape side plate (191), the outlet B of moulding pipe (30) is arranged on the right-hand member of shaping mould (1), roller bearing (12) is fixedly mounted between two bracing frames (11) by roller bearing (13), roller bearing (13) is connected with bracing frame (11) by ladder screw rod (14), be bolted end cap (18) on the bracing frame (11) of shaping mould (1) left end, convex (181) interference fit of one end of inner support sleeve (17) and end cap (18) connects as one, be provided with the ball stop sleeve (16) of ball (12) at the periphery suit of inner support sleeve (17), and be fixed together with pin and inner support sleeve (17), and the ball (15) on the ball stop sleeve (16) contacts with the inner headed face of moulding pipe (30), and ball stop sleeve (16) and inner support sleeve (17) correspondence are offered a welding gun hand-hole (100); Rotating disk (21) is mutually affixed with shaping mould (1) by bolt and cross base plate (192), and shaping mould (1) is adjusted forming angle by coupled forming angle adjuster (2);
In shaping mould (1), along circumferentially every certain angle a roller bearing (12) being installed, its axle center all is distributed on the same circumference (20), and the two ends of roller bearing (12) all are equipped with roller bearing, so that roller bearing is free to roll;
Between roller bearing (13) and bracing frame (11), be socketed with a cushion cover and a plurality of disk spring on each ladder screw rod (14), and ladder screw rod (14) can be along the hole on the bracing frame (11) being free to slide up and down;
Ball (15) is along circumferentially being evenly distributed on the ball stop sleeve (16) by helix, the distributing line helical angle of ball (15) is consistent with the moulding helical angle of made pipe fittings, axis direction at ball stop sleeve (16) is lineal layout, is distributed as in the radial direction every roller bearing (12) all to row's ball (15) should be arranged;
Forming angle adjuster (2) is by rotating disk (21), rotating shaft (22), worm gear (23), worm screw (24) and pedestal (25) consist of, its shaft (22) and rotating disk (21) keyed jointing, and affixed with worm gear (23), worm gear (23) is intermeshing with worm screw (24).
Owing to having adopted technique scheme, the present invention to have following advantage and effect:
1, the main body of shaping mould of the present invention is comprised of roller bearing, and in the process of helix tube moulding, roller bearing is free to rotate; Simultaneously, inner at moulding pipe, we are equipped with and are in a large number the ball that helix distributes, its helical angle is consistent with the helical angle of made helix tube, strip material is carried out spiral forming between ball and roller bearing, this is so that all frictions all are rolling friction, and this has just reduced the frictional resistance in the forming process greatly, but also do not need apply oil, there is not lubricant pollution.
2, the present invention is equipped with a plurality of butterfly springs between roller bearing and bracing frame, and the ladder screw rod that connects roller bearing can only have up and down slip along the hole on the bracing frame, this is so that roller bearing can move up and down in the radial direction at shaping mould, this is just so that shaping mould has adaptivity to metal tape thickness, roller bearing can be according to metal but the thickness of material automatically adjusts and ball between spacing, this shaped device of being not only us can adapt to the strip material of multi-thickness, has also avoided because the error of strip material on thickness makes the stuck situation of metal tape.
3, the present invention is when strip material rolls into helix tube, what adopt is just the metal level that plays the skeleton supporting role to be carried out the brute force propelling to send, thin layer of precious metal adopts and sends with the mode that enters, this has just effectively been avoided because sending of causing of the materials of double-level-metal carrying material in the process of moulding poor (namely the amount of going forward one by one of inner layer metal carrying material is less than the amount of going forward one by one of outer layer metal carrying material in the forming process of double metal spiral pipe) is asynchronous, and then causes the phenomenon of the wrinkling even unstability of strip material.
Description of drawings
Fig. 1 is structure collectivity cross-sectional schematic of the present invention
Fig. 2 is the A-A cross-sectional schematic of Fig. 1 of the present invention
The specific embodiment
Illustrated by Fig. 1 and Fig. 2, a kind of open double metal spiral compound pipe molding device, mainly formed by shaping mould 1 and forming angle adjuster 2, wherein: the two ends of shaping mould 1 are respectively arranged with bracing frame 11, bracing frame 11 is fixed together by bolt and bearing 19, the common supporting construction that consists of shaping mould 1, bearing 19 is made of two blocks of T shape side plates 191 and a cross base plate 192, be bolted to connection, metal belting 31 entrance A are arranged on the gap, lower-left of T shape side plate 191, the outlet B of moulding pipe 30 is arranged on the right-hand member of shaping mould 1, roller bearing 12 is fixedly mounted between two bracing frames 11 by roller bearing 13, roller bearing 13 is connected with bracing frame 11 by ladder screw rod 14, be socketed with a cushion cover and a plurality of disk spring on each ladder screw rod 14, and ladder screw rod 14 can be free to slide up and down along the hole on the bracing frame 11; Be bolted end cap 18 on the bracing frame 11 of shaping mould 1 left end, convex 181 interference fit of one end of inner support sleeve 17 and end cap 18 connect as one, be provided with the ball stop sleeve 16 of ball 12 at the periphery suit of inner support sleeve 17, and be fixed together with pin and inner support sleeve 17, ball 15 is along circumferentially being evenly distributed on the ball stop sleeve 16 by helix, the distributing line helical angle of ball 15 is consistent with the moulding helical angle of made pipe fittings, axis direction at ball stop sleeve 16 is lineal layout, is distributed as in the radial direction every roller bearing 12 all to row's ball 15 should be arranged; And the ball on the ball stop sleeve 16 15 contacts with the inner headed face of moulding pipe 30, just overlaps the position that begins to roll into helix tube in the two edges of strip material, and ball stop sleeve 16 and inner support sleeve 17 correspondences are offered a welding gun hand-hole 100; Forming angle adjuster 2 is by rotating disk 21, rotating shaft 22, worm gear 23, worm screw 24 and pedestal 25 consist of, its shaft 22 is fixedly connected with rotating disk 21 by metallic bond, and worm gear 23 is fixed in the rotating shaft 22, and worm gear 23 is intermeshing with worm screw 24, rotating disk 21 is mutually affixed with shaping mould 1 by bolt and cross base plate 192, and shaping mould 1 is adjusted forming angle by coupled forming angle adjuster 2.
Other knows, in shaping mould 1, along circumferentially every certain angle a roller bearing 12 being installed, its axle center all is distributed on the same circumference 20, and the two ends of roller bearing 12 all are equipped with roller bearing, so that roller bearing is free to roll.
In the process of double metal spiral compound pipe molding, the outer strip material 31 that plays the skeleton supporting role is advanced in the shaping mould 1 by brute force through entrance A with a certain specific angle continuously by delivery apparatus, simultaneously, the noble metal carrying material 32 that internal layer is thin is also sent with identical angle, the noble metal carrying material 32 that internal layer is thin fits tightly with the strip material 31 that plays the skeleton supporting role under the pressure-acting between roller bearing and ball, and the strip material 31 that plays the skeleton supporting role by skin under the effect of frictional force drives and enters in the shaping mould 1, and makes helical form with strip material 31 automatic rolling under roller bearing that skin plays the skeleton supporting role.Two sides in strip material 31 begin to contact the M place, position that forms weld seam, by fusing process of intermediate or other welding methods inner layer metal carrying material 31 are welded into helix tube; And at the about N place, position of half pitch of relative pipe fitting, by welding outer layer metal carrying material 31 is welded into helix tube, finally form our desired spiral composite pipe.Because shaping mould 1 is fixed on the forming angle adjuster 2, forming angle adjuster 2 is the worm gear-endless screw system, when rotary worm, can drive shaping mould 1 by worm gear 23 and rotate, thus the adjusting of realization forming angle.
Know again, send with the brute force that deformation force and the propulsive force of steel all derives from delivery apparatus, wherein radial deformation power passes to roller bearing 12 by strip material 31, and roller bearing 12 is passed to the roller bearing 13 at its two ends again, and roller bearing 13 is passed to bracing frame 11 by disk spring with power again; And for circumferential propulsive force, owing to belonging to sliding friction between roller bearing 12 and the outer layer metal carrying material 31, so strip material 31 suffered most of axial advance power have passed to roller bearing 12, roller bearing 12 passes to the roller bearing 13 at its two ends again, roller bearing 13 is passed to bracing frame 11 by ladder screw rod 14 with power again, small part axial advance power has passed to ball 15, ball 15 passes to power again ball stop sleeve 16, ball stop sleeve 16 passes to inner support sleeve 17 with power by pin again, pass to end cap 18 by inner support sleeve 17 again, pass at last bracing frame 11.
Two sides in strip material begin to contact the M place, position that forms weld seam, have the square hole that length and width are 40mm on inner support sleeve 17 and the ball stop sleeve 16, its purposes is exactly to make the welding gun of welding inner layer metal carrying material aim at weld seam from mould inside, so that the internal layer strip material is implemented welding; And the welding gun of welding outer layer metal carrying material is then stretched into by the N place between two roller bearings and aims at weld seam in the mould, and outer strip material is implemented welding.
Roll in the process of spiral composite pipe in strip material, only the metal level that plays the skeleton supporting role is carried out the brute force propelling and send, thin layer of precious metal adopts and sends with the mode that enters.
Claims (5)
1. open type built-in stainless steel dual-metal spiral composite pipe forming device, mainly formed by shaping mould (1) and forming angle adjuster (2), it is characterized in that: the two ends of shaping mould (1) are respectively arranged with bracing frame (11), bracing frame (11) is fixed together by bolt and bearing (19), the common supporting construction that consists of shaping mould (1), bearing (19) is made of two blocks of T shape side plates (191) and a cross base plate (192), be bolted to connection, metal belting (31) entrance A is arranged on the gap, lower-left of T shape side plate (191), the outlet B of moulding pipe (30) is arranged on the right-hand member of shaping mould (1), roller bearing (12) is fixedly mounted between two bracing frames (11) by roller bearing (13), roller bearing (13) is connected with bracing frame (11) by ladder screw rod (14), be bolted end cap (18) on the bracing frame (11) of shaping mould (1) left end, convex (181) interference fit of one end of inner support sleeve (17) and end cap (18) connects as one, be provided with the ball stop sleeve (16) of ball (12) at the periphery suit of inner support sleeve (17), and be fixed together with pin and inner support sleeve (17), and the ball (15) on the ball stop sleeve (16) contacts with the inner headed face of moulding pipe (30), and ball stop sleeve (16) and inner support sleeve (17) correspondence are offered a welding gun hand-hole (100); Rotating disk (21) is mutually affixed with shaping mould (1) by bolt and cross base plate (192), and shaping mould (1) is adjusted forming angle by coupled forming angle adjuster (2).
2. open double metal spiral compound pipe molding device according to claim 1, it is characterized in that: in shaping mould (1), along circumferentially every certain angle a roller bearing (12) being installed, its axle center all is distributed on the same circumference (20), the two ends of roller bearing (12) all are equipped with roller bearing, so that roller bearing is free to roll.
3. open double metal spiral compound pipe molding device according to claim 1, it is characterized in that: between roller bearing (13) and bracing frame (11), be socketed with a cushion cover and a plurality of disk spring on each ladder screw rod (14), and ladder screw rod (14) can be along the hole on the bracing frame (11) being free to slide up and down.
4. open double metal spiral compound pipe molding device according to claim 1, it is characterized in that: ball (15) is along circumferentially being evenly distributed on the ball stop sleeve (16) by helix, the distributing line helical angle of ball (15) is consistent with the moulding helical angle of made pipe fittings, axis direction at ball stop sleeve (16) is lineal layout, is distributed as in the radial direction every roller bearing (12) all to row's ball (15) should be arranged.
5. open double metal spiral compound pipe molding device according to claim 1, it is characterized in that: forming angle adjuster (2) is by rotating disk (21), rotating shaft (22), worm gear (23), worm screw (24) and pedestal (25) consist of, its shaft (22) and rotating disk (21) keyed jointing, and affixed with worm gear (23), worm gear (23) is intermeshing with worm screw (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224848 CN101722211B (en) | 2008-10-24 | 2008-10-24 | Open type built-in stainless steel dual-metal spiral composite pipe forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224848 CN101722211B (en) | 2008-10-24 | 2008-10-24 | Open type built-in stainless steel dual-metal spiral composite pipe forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101722211A CN101722211A (en) | 2010-06-09 |
| CN101722211B true CN101722211B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810224848 Expired - Fee Related CN101722211B (en) | 2008-10-24 | 2008-10-24 | Open type built-in stainless steel dual-metal spiral composite pipe forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101722211B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731041A (en) * | 1970-06-10 | 1973-05-01 | Hoesch Maschinenfabrik Ag | Method and apparatus for making a tube from a metal strip |
| US4924684A (en) * | 1989-02-23 | 1990-05-15 | Spiro America Inc. | Apparatus for forming and cutting spiral pipe |
| CN2487463Y (en) * | 2001-04-13 | 2002-04-24 | 中国石油化工股份有限公司 | Device for forming and processing metallic helically welded pipe |
| CN201342434Y (en) * | 2008-10-24 | 2009-11-11 | 北京石油化工学院 | Open-type molding device with built-in stainless-steel bimetallic screw composite tube |
-
2008
- 2008-10-24 CN CN 200810224848 patent/CN101722211B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3731041A (en) * | 1970-06-10 | 1973-05-01 | Hoesch Maschinenfabrik Ag | Method and apparatus for making a tube from a metal strip |
| US4924684A (en) * | 1989-02-23 | 1990-05-15 | Spiro America Inc. | Apparatus for forming and cutting spiral pipe |
| CN2487463Y (en) * | 2001-04-13 | 2002-04-24 | 中国石油化工股份有限公司 | Device for forming and processing metallic helically welded pipe |
| CN201342434Y (en) * | 2008-10-24 | 2009-11-11 | 北京石油化工学院 | Open-type molding device with built-in stainless-steel bimetallic screw composite tube |
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| Publication number | Publication date |
|---|---|
| CN101722211A (en) | 2010-06-09 |
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