CN1509215A - Apparatus and methof for reshaping tubes - Google Patents
Apparatus and methof for reshaping tubes Download PDFInfo
- Publication number
- CN1509215A CN1509215A CNA028101480A CN02810148A CN1509215A CN 1509215 A CN1509215 A CN 1509215A CN A028101480 A CNA028101480 A CN A028101480A CN 02810148 A CN02810148 A CN 02810148A CN 1509215 A CN1509215 A CN 1509215A
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- CN
- China
- Prior art keywords
- pipe
- forming rolls
- reshaping
- longitudinal axis
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/155—Making tubes with non circular section
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
In a method of reshaping a tube (4), an apparatus is used which has a roller nip (10, 11) for rotating the tube (4), and a shaping roller assembly (12, 13) for alterning the cross-section of the tube (4), for instance from round to oval.
Description
Technical field
The present invention relates to a kind of apparatus and method that are used for making the pipe reshaping, relate in particular to and a kind ofly be used in pipe in the ventiduct system, that spirality is twined, lock seam and carry out the apparatus and method of reshaping.
Background technology
WO-A-99/51371 discloses a kind of device that is called ovalization device (ovaliser), and this device is used for making circular ductwork to form oval pipeline system, promptly is to be used for making the cross section of pipe to change over oval-shaped device from circle.In particular, this pipe is a spiral element, and those of ordinary skills also are referred to as the pipe that spirality is twined.
In order to realize the reshaping of pipe, so this device has elongated, horizontal tube and forms assembly, and this assembly has two tubular members that vertically separate mutually.By power set these two tubular members are connected with each other, and these power set are shaped as these tubular members are moved back and forth mutual vertically.
The round tube that will carry out reshaping is placed on pipe forms on the assembly, and power set (many hydraulic cylinders) activated.When the distance between these tubular members increased, they were pressed against on the inner surface of pipe on two relative positions, and make pipe reshaping ovalisation cross section.Each tubular member has semicircle head, and should be pressed against on the inner surface of pipe by the semicircle head.
But this known technology has some shortcomings that below will discuss.
At first, owing to be pressed against the effect of tube interior, so tube wall deformation and material are stretched.This stretching can cause tube wall fracture and other defective.
The second, when this pipe was the pipe (normal condition) of spiral winding, lock seam, squeezing action can cause sliding or slippage in lock seam, and this can make pipe form different sizes again on every end.This just makes and is difficult to these pipes are connected in the ventiduct system.
The 3rd, each diameter of the pipe of having nothing for it but is changed the semicircle head of tubular member.This more changing jobs wasted the time, and has to keep the many pipes of stock to form head.This has increased expense.
The 4th, well known device has less adaptability, because it can only be used for from circular reshaping to oval.
The 5th, the pipe (ellipse) after distortion back or the reshaping is tending towards returning to its original-shape (circle) owing to the stress effect in the caused tube wall of distortion.
Therefore, need the improvement technology that is used for making the pipe reshaping.
With regard to background technology, should also be mentioned that so-called bending machine.Bending machine has roll assembly, and wherein metallic plate or sheet metal are fed in this bending machine and are formed ideal form, for example form circular cross section.In the end in the step, seal this pipe by vertically welding along tube wall.But these bending machines can not be used for making pipe to carry out reshaping, for example make pipe from circular reshaping for oval, because the material of beginning always flat board or plain film.
Summary of the invention
The purpose of this invention is to provide a kind of pipe reshaping, new, improved technology that is used for making, especially be used in ventiduct system, pipe that spiral twines, lock seam carries out the technology of reshaping, therefore overcome above-mentioned shortcoming or made above-mentioned shortcoming become not serious at least.
Now, this purpose can realize by the device of the feature with claim 1, and preferred embodiment limits in relevant dependent claims.
By this device, can solve prior art problems.Because forming rolls and the device that these forming rolls are moved are carried out Promethean layout, therefore are very easy to make pipe to carry out reshaping.The material of pipe can not be stretched, because make the circumference of pipe not change by this reshaping work.Therefore, in tube wall, can not produce defective.
In addition, this device can be used for making a large amount of pipes to carry out reshaping, even a large amount of pipes is circle etc. from circular reshaping for ellipse, from oval reshaping.In principle, can obtain any shape of cross section of pipe, need only it and have radiused corners, for example triangle, rectangle etc.Therefore, the work of apparatus of the present invention has extraordinary adaptability.
Another very important advantage is that same device can be used for all sizes.When the pipe with wide variety of sizes is carried out reshaping, do not need to change tubular member.Identical roller is arranged can be used for all sizes.In fact, compare with the well known device among the WO-A-99/51371 that introductory section is discussed, this is favourable.
In a preferred embodiment, these forming rolls are shaped as bending force is applied on some such application points: these application points are spaced with respect to the circumference of wall.Consequently, can realize reshaping work very stably.Preferably, these format rolls are shaped to along the bus of pipe and apply bending force, and this has just further improved reshaping work.
Preferably, whirligig comprises roll gap, and it has two relative rollers, and these two rollers are shaped as and engage tube wall in roll gap, and can rotate pipe drivingly along its longitudinal axis.This roll gap provides reliably, rotary work stably.Most preferably, these forming rolls are parallel with these mip rolls, thereby can control reshaping work easily.In addition, this layout makes that the structure of this device is very compact.
In a preferred embodiment, this device comprises framework, and this framework has two frame units relative, that separate, when carrying out work, between these two frame units pipe is being set.Each frame unit has guider, and the end of these forming rolls is connected on the guider, and guider is shaped as the described motion that these forming rolls are provided.These guiders in the frame unit can carry out different control to the reshaping motion of these forming rolls.Do not produce disadvantageous inertia.
Preferably, guider is a groove, and these grooves are arranged in the corresponding frame unit.In addition, preferably, actuating device such as hydraulic cylinder are installed between the end and frame unit of forming rolls.Therefore, these forming rolls can be realized different motions.
In one aspect of the invention, provide a kind of and be used for making pipe to carry out the roller device of reshaping, wherein this pipe has cross section and longitudinal axis, and this roller device comprises:
First roll assembly, it is shaped as pipe is rotated around longitudinal axis;
Second roll assembly, it be shaped as bending force along towards or be applied in the pipe away from the direction of pipe, therefore changed the cross section of pipe.
Purpose of the present invention can also realize that this method has the feature of additional claim 15 by a kind of method, and preferred distortion is limited in the relevant dependent claims.
The advantage of the inventive method and its advantageous version advantage with device discussed above basically is identical.
Description of drawings
With reference to accompanying drawing, be further described below the present invention and its advantage, wherein these accompanying drawings show present preferred embodiment by the mode of example.
Fig. 1 is the perspective view of the device of first embodiment of the invention;
Fig. 2-the 4th, the side view of the reshaping mechanism of device shown in Figure 1.
Fig. 5 shows all places that is included in the in-house roller of reshaping.
Fig. 6-the 8th has the side view of the replacement reshaping mechanism of auxiliary roller.
Fig. 9 is the perspective view of the device of second embodiment of the invention.
Figure 10 is the side view of the reshaping mechanism of device shown in Figure 9.
The specific embodiment
With reference to Fig. 1-5, the device of first embodiment of the invention comprises framework 1, and this framework 1 has two frame units 2 relative, that separate and 3.Pipe 4 with wall 5, edge 6, inner surface 7, outer surface 8 and longitudinal axis C is arranged between frame unit 2 and 3.Roller device comprises 10,11 and two rotatable forming rolls 12,13 of two rotatable mip rolls (nip roller). Mip rolls 10,11 provides and has been used for making pipe 4 to drive the device of rotation around its longitudinal axis C, and forming rolls 12,13 is used for making pipe 4 reshapings.This will be further described below.
All roller 10-13 are parallel to each other and are parallel to the longitudinal axis C of pipe 4.
In each frame unit 2,3, an installation component is arranged, this installation component is connected to the end of these rollers 10-13 on the corresponding frame unit.In Fig. 1, only show an installation component.This assembly comprises two arms 14,15, and these two arms 14,15 are installed in rotation on the frame unit 3 and (are installed in separately on 14a, the 15a, referring to Fig. 2-4).Arm 14 is connected on the end shaft portion 12a of the forming rolls 12 in the pipe 4, and arm 15 is connected on the end shaft portion 13a of forming rolls 13 of pipe 4 outsides.The rotation (referring to double-head arrow) of these arms 14,15 is handled by actuating device, is shown as here to being installed in the hydraulic cylinder 16,17 on the frame unit 3.
The operation principle of pipe reshaping device is illustrated among Fig. 2-5.The pipe 4 of circular cross section is arranged in this device, and carries out the clockwise direction rotation by making mip rolls 10,11 clamp tube wall 5 in roll gap.The inner surface 8 of inside or top forming rolls 12 conjugation tubes 4, so the outer surface of outside or bottom forming rolls 13 conjugation tubes 4. Forming rolls 12,13 is applied on the tube wall 5 along the bus G of pipe 4.
By the rotation of arm 14 and 15, forming rolls 12,13 is applied to bending force on the tube wall 5 at application point 19,21 places, and these application points are spaced with respect to the edge 6 of pipe 4.Therefore, forming rolls 12,13 relative to each other moves and moves with respect to mip rolls 10,11.By this feature, pipe 4 can form middle cross section shape shown in Figure 3, and forms target oval cross section shape shown in Figure 4 at last.When work, the motion of forming rolls 12,13 can accurately be controlled by the computer (not shown).Be convenient to the effect of cooperatively interacting that described bending force is applied between two forming rolls 12,13 on the tube wall 5 make reposefully pipe 4 to carry out reshaping.
First forming rolls 13 is used for reducing the radius of curvature R of pipe 4, and second forming rolls 12 is used for increasing the radius of curvature of pipe 4.Outside forming rolls 13 applies bending force, and these bending forces are basically towards the center of pipe 4, and inner forming rolls 12 applies the bending force away from the center of pipe 4.When work, two forming rolls 12,13 actings in conjunction are to provide suitable flecition.
Preferably, these arms 14,15 can rotate in plane P, and plane P is perpendicular to the longitudinal axis C of pipe 4.
Dotted line among Fig. 5 correspondingly shows the end position of forming rolls 12 and 13.In fact, according to the target final form of pipe 4, these end positions can change.
In this example, show round tube 4 and be reshaping how and be oval pipe, Here it is changes the radius of curvature R of pipe.But it is round tube etc. that this device also can be used for an oval pipe reshaping.Initial or last cross section for pipe does not have particular restriction when reshaping.
As Fig. 1 saw, frame unit 3 was installed in rotation on 21, so that the framework 1 of this part can be " unpacked " to come pipe is supplied in this device, and took off the pipe that reshaping is crossed from this device.Certainly, when pipe will supply in this device or take off pipe from this device, inner roller 10,12 was had to and their installed part is thrown off.
The number of roller is not crucial for reshaping.As an example, Fig. 6-8 shows alternative embodiment.These rollers 10-13 is identical with the foregoing description, but has added auxiliary outer forming rolls 22.Because this assist formation roller 22 and outside forming rolls 13 are arranged on every side of outside mip rolls 10, therefore can realize very steady, effectively reshaping work.Raise and reduce this two forming rolls 13 and 21 by order (controlling), can finish very favorable reshaping by computer with accurate qualification.
Second embodiment of this device is illustrated among Fig. 9-10.Main difference part between this embodiment and first embodiment relates to and is used for installing and the device of mobile roller 10-13.The device of Fig. 9-10 has two groups of (set) erecting devices, wherein has one group on each end.Below, wherein one group is only described.
The end shaft portion 11a of outside mip rolls 11 is installed in the elongate recess or groove 23 in the frame unit 3, and the end shaft portion 13a of outside forming rolls 13 is installed in the elongate recess or groove 24 in the frame unit 3.These grooves 23,24 have constituted and have been used for the device that leads to the motion of relevant roller 11 and 13, and wherein relevant roller 11 and 13 guiding movement are realized that by actuating device, actuating device (as among first embodiment) is hydraulic cylinder 18 and 17 here.The design of groove 23,24 has to calculate according to ideal movements and reshaping work.Under normal conditions, these grooves the 23, the 24th, linear, but they also can have crooked (not shown) a little.
The same with first embodiment, outside or bottom mip rolls 11 can move both vertically, so inside or top mip rolls 10 are " static " (still, certainly rotations).Inside and outside forming rolls 12 and 13 can move along following these directions separately: these directions and bottom mip rolls 11 move both vertically shape at an angle.Can see that in Fig. 9 two grooves 23 and 24 have formed an angle.
Improved slightly hydraulic cylinder 16 ' is connected on the end shaft portion 12a of inner forming rolls 12.Difference with respect to cylinder shown in Figure 1 16 is: can be connected to the cylinder 16 ' after improving on the end shaft portion 12a by clamping element or pawl 25 with pulling down.Therefore, cylinder 16 ' can remove from forming rolls 12, and can swing on the upright position around pivot 26, thereby changes pipe.When pipe will be fed in the roll gap 10,11 or remove from roll gap 10,11, by cylinder 18 mip rolls 11 is reduced, clamping element 25 removes from end shaft portion 12a, and cylinder 16 ' swings on its upright position.
As shown in Figure 1, frame unit 3 can rotate at 21 places, so the framework of this part can be " unpacked ".
Preferably, cylinder 16 ', 17 and 18 is arranged on the common plane basically, and this common plane is perpendicular to the longitudinal axis C of pipe 4.This causes structure very compact and reliable.
In order to realize the easy motion of inner forming rolls 12, therefore its end shaft portion 12a is connected on the end shaft portion 10a by connector 27.When pipe was removed from roll gap 10,11, connector 27 also was used for keeping top mip rolls 10.
As first embodiment, first forming rolls 13 has reduced radius of curvature, and therefore second forming rolls 12 has increased radius of curvature.In Figure 10, inner forming rolls 12 is illustrated on the extreme higher position that is positioned at mip rolls 10,11 tops, but forming rolls 12 can be reduced to such position along the direction of cylinder 16 ': on this position, it matches with outside forming rolls 13 bending force is applied on the tube wall 5.Then, cylinder 16 ' rotates around pivot 26.
Can obtain extraordinary actual result by this device.Be used for ventiduct system, pipe that spirality is twined, lock seam from circular reshaping for oval, and without any the shortcoming of being discussed in the introductory section of the prior art.The present invention has worked out simple, the method after improving of reshaping pipe.Especially, advantageously, during reshaping, the circumference of pipe remains unchanged.
At last, should be emphasized that the present invention is in no way limited to these embodiment as described herein, but in the present invention's spirit essence that accessory claim limited, can carry out many improvement.For example, what should be mentioned in that is, can use other number that is not roller number as described herein, and the present invention is not limited to the pipe of any Special Category.In addition, other actuating device that is not hydraulic cylinder be can use, pneumatic cylinder, electric driver (linear unit) and similar device for example can be used.
Also can use the alternative of the rotation, installation and the motion that are used for roller.For example, the cylinder 18 that roller 11 is moved can replace with following such device (not shown): this device comprises axially actuated cylinder, and wherein this cylinder moves up and down roller 11 by the wedge shape assembly.In addition, make the device 16 ' that roller 12 moves, 25 can (not shown) replaces by gear ring device (gear ring unit), and this gear ring device be connected on roller 12 or its end shaft portion 12a.By gear ring is rotated, roller 12 is moved, shown in the double-head arrow among Fig. 5-8 along the fan-shaped part of circle.Gear ring activates by suitable device, preferably activates by electrically driven (operated) device.By this gear ring device, roller 12 can be swung between two end positions, for example swings along semicircle.
Claims (21)
1. one kind is used for making pipe (4) to carry out the device of reshaping, and this pipe (4) has: have the wall (5) of circumference (6), and inner surface (7), outer surface (8), longitudinal axis (C) and have the cross section of at least one radius of curvature (R) is characterized in that:
Device (10,11), it is shaped as in device pipe (4) is rotated around its longitudinal axis (C);
First forming rolls (13), it parallels with the longitudinal axis (C) of pipe (4), and is shaped as the outer surface (7) of engage tubes (4);
Second forming rolls (12), it parallels and is shaped as the inner surface (8) of engage tubes (4) with the longitudinal axis (C) of pipe (4); And
Device (14,15; 16-18), it is shaped as first and second forming rolls (12,13) is relative to each other moved, and move with respect to whirligig (10,11), thereby bending force is applied on the tube wall (5), to change described at least one radius of curvature (R), make the cross section of pipe (4) carry out reshaping therefrom.
2. device as claimed in claim 1 is characterized in that, these forming rolls (12,13) and telecontrol equipment (14,15; 16-18) be shaped to bending force is applied on some application points (19,20) on the tube wall (5), these application points are spaced with respect to the circumference (6) of tube wall (5).
3. as claim 1 or 2 described devices, it is characterized in that these format rolls (12,13) are shaped to along the bus (G) of pipe (4) and apply bending force.
4. the arbitrary described device of claim as described above, it is characterized in that, described whirligig comprises the roll gap assembly, this assembly has two relative rollers (10,11), these two rollers are shaped as and engage tube wall (5) in roll gaps, and can rotate the longitudinal axis (C) of pipe (4) around it drivingly.
5. device as claimed in claim 4 is characterized in that, these forming rolls (12,13) are parallel to the roller (10,11) of described roll gap assembly.
6. the arbitrary described device of claim as described above, also comprise framework (1), framework (1) has two frame units relative, that separate (2,3), when carrying out work, between these two frame units, pipe (4) is being set, each frame unit (2,3) has guider (24,16 ', 27), and the end (12a, 13a) of these forming rolls (12,13) is connected on the guider, and these guiders are shaped as the described motion that these forming rolls (12,13) are provided.
7. device as claimed in claim 6 is characterized in that, guider is groove (24), and these grooves are arranged in the frame unit (2,3), and the end of these forming rolls is installed in these grooves.
8. as claim 6 or 7 described devices, it is characterized in that actuating device (16,17) is installed between the end (12a, 13a) and described frame unit (2,3) of forming rolls (12,13).
9. device as claimed in claim 8 is characterized in that, these actuating devices are hydraulic cylinder (16,17).
10. device as claimed in claim 1, it is characterized in that, telecontrol equipment comprises arm (14,15), these arms are connected to the end (12a, 13a) of these forming rolls (12,13) and go up and can rotate in plane (P), and its midplane (P) is substantially perpendicular to the longitudinal axis (C) of pipe (4).
11. device as claimed in claim 10 is characterized in that, these actuating devices (16,17) are installed between the arm (14,15) and frame unit (2,3) of this device.
12. device as claimed in claim 11 is characterized in that, these actuating devices are hydraulic cylinder (16,17).
13. device as claimed in claim 1, it also comprises assist formation roller (22), and this assist formation roller is shaped as the outer surface (7) of engage tubes (4) and separates with respect to the circumference (6) of tube wall (5) and first forming rolls (13).
14. device as claimed in claim 13, it is characterized in that, assist formation roller (22) and first forming rolls (13) are arranged on the every side that is included in the outside mip rolls (11) in the device (10,11), thereby pipe (4) is rotated around its longitudinal axis (C).
15. one kind is used for making pipe (4) to carry out the method for reshaping, pipe (4) has inner surface (8) and outer surface (7), longitudinal axis (C) and cross section, and wherein cross section has at least one radius of curvature (R), it is characterized in that following steps:
Pipe (4) is rotated around its longitudinal axis (C); And
Bending force is applied on the inner surface and outer surface (8,7) of pipe (4);
Therefore changed described at least one radius of curvature (R), thereby made the cross section of pipe (4) carry out reshaping.
16., it is characterized in that, bending force is applied on the application point (19,20) on the tube wall (5), and these application points are spaced with respect to the circumference (6) of tube wall (5) as claim 15 described methods.
17. method as claimed in claim 16 is characterized in that, during the reshaping of pipe (4), the application point of these bending forces is along circumference (6) motion of tube wall (5).
18. method as claimed in claim 15 is characterized in that, applies these bending forces along the bus (G) of pipe (4).
19. one kind is used for making pipe (4) to carry out the roller device of reshaping, wherein this pipe has cross section and longitudinal axis (C), and this roller device comprises:
First roll assembly (10,11), it is shaped as pipe (4) is rotated around longitudinal axis (C);
Second roll assembly (12,13), it be shaped as a bending force along towards or be applied in the pipe (4) away from the direction of pipe (4), therefore changed the cross section of pipe (4).
20. a pipe, it carries out reshaping by the method for claim 15.
21. the purposes of a roller device, this roller device are used for making pipe (4) reshaping that is rotated, at least one forming rolls (12) is arranged on the inside of pipe (4), and at least one forming rolls (13) is arranged on the outside of pipe (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE01017755 | 2001-05-18 | ||
| SE0101775A SE521361C2 (en) | 2001-05-18 | 2001-05-18 | Device, method, roller assembly and use of roller assembly for reshaping a pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1509215A true CN1509215A (en) | 2004-06-30 |
Family
ID=20284178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028101480A Pending CN1509215A (en) | 2001-05-18 | 2002-05-17 | Apparatus and methof for reshaping tubes |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1387726A2 (en) |
| JP (1) | JP2004525773A (en) |
| CN (1) | CN1509215A (en) |
| AU (1) | AU2002305982A1 (en) |
| CZ (1) | CZ20033401A3 (en) |
| PL (1) | PL367747A1 (en) |
| SE (1) | SE521361C2 (en) |
| WO (1) | WO2002094467A2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889168B (en) * | 2008-03-05 | 2012-08-22 | 东洋钢钣株式会社 | Optical transmitter |
| CN102921785A (en) * | 2012-10-25 | 2013-02-13 | 佛山神威热交换器有限公司 | Method and device for processing copper tube with spiral rib fin |
| CN103386429A (en) * | 2012-05-10 | 2013-11-13 | 江阴德玛斯特钻具有限公司 | Edge coiling machine of drill stem threaded protective jacket |
| CN106623532A (en) * | 2017-03-02 | 2017-05-10 | 郑常 | Machine tool for coiling steel plates |
| CN107756142A (en) * | 2016-08-23 | 2018-03-06 | 河南省大方重型机器有限公司 | A kind of rectangular tube ellipse forming frock |
| CN111097560A (en) * | 2019-11-22 | 2020-05-05 | 安徽工业大学 | Pipette tip based on secondary forming, preparation method and application |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8210014B2 (en) * | 2006-02-21 | 2012-07-03 | Jilin University | Flexible forming device for forming three-dimensional shaped workpieces |
| ITTO20130081A1 (en) * | 2013-01-31 | 2014-08-01 | Roccia S R L | CALENDER PREFERABLY WITH A DOUBLE CALL WITH A LOWER STRUCTURE |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1425778A (en) * | 1973-12-20 | 1976-02-18 | Nikia Ab Oy | Shaping device for reshaping a tube |
| EP0227870A1 (en) * | 1985-12-30 | 1987-07-08 | Societe Nouvelle Des Ateliers Et Chantiers Du Havre | Automatically controlled machine for rolling metal sheets |
| DE3729868C1 (en) * | 1987-09-05 | 1988-04-21 | Sotralentz Sa | Method for the production of a cylinder from an elongate sheet-steel blank |
| DE4210227A1 (en) * | 1992-03-28 | 1993-09-30 | Zentgraf Maschinenbau Gmbh | Mfr. of tubes from sheet metal - by machine with three rollers mounted in frame which can be swung about axis of one roller. |
| IT1296576B1 (en) * | 1997-11-27 | 1999-07-14 | Promau Srl | AUTOMATIC EQUIPMENT FOR BENDING SHEETS, WITH DIGITAL SELECTIVE CONTROL |
-
2001
- 2001-05-18 SE SE0101775A patent/SE521361C2/en unknown
-
2002
- 2002-05-17 CN CNA028101480A patent/CN1509215A/en active Pending
- 2002-05-17 AU AU2002305982A patent/AU2002305982A1/en not_active Abandoned
- 2002-05-17 PL PL02367747A patent/PL367747A1/en not_active Application Discontinuation
- 2002-05-17 EP EP02733700A patent/EP1387726A2/en not_active Withdrawn
- 2002-05-17 CZ CZ20033401A patent/CZ20033401A3/en unknown
- 2002-05-17 JP JP2002591172A patent/JP2004525773A/en active Pending
- 2002-05-17 WO PCT/SE2002/000942 patent/WO2002094467A2/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101889168B (en) * | 2008-03-05 | 2012-08-22 | 东洋钢钣株式会社 | Optical transmitter |
| CN103386429A (en) * | 2012-05-10 | 2013-11-13 | 江阴德玛斯特钻具有限公司 | Edge coiling machine of drill stem threaded protective jacket |
| CN102921785A (en) * | 2012-10-25 | 2013-02-13 | 佛山神威热交换器有限公司 | Method and device for processing copper tube with spiral rib fin |
| CN107756142A (en) * | 2016-08-23 | 2018-03-06 | 河南省大方重型机器有限公司 | A kind of rectangular tube ellipse forming frock |
| CN106623532A (en) * | 2017-03-02 | 2017-05-10 | 郑常 | Machine tool for coiling steel plates |
| CN106623532B (en) * | 2017-03-02 | 2018-07-24 | 郑常 | A kind of lathe rolling steel plate |
| CN111097560A (en) * | 2019-11-22 | 2020-05-05 | 安徽工业大学 | Pipette tip based on secondary forming, preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002094467A2 (en) | 2002-11-28 |
| SE0101775L (en) | 2002-11-19 |
| AU2002305982A1 (en) | 2002-12-03 |
| JP2004525773A (en) | 2004-08-26 |
| SE521361C2 (en) | 2003-10-28 |
| SE0101775D0 (en) | 2001-05-18 |
| PL367747A1 (en) | 2005-03-07 |
| EP1387726A2 (en) | 2004-02-11 |
| WO2002094467A3 (en) | 2003-02-06 |
| CZ20033401A3 (en) | 2004-12-15 |
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