US20040011111A1 - Drawing machine - Google Patents
Drawing machine Download PDFInfo
- Publication number
- US20040011111A1 US20040011111A1 US10/140,839 US14083902A US2004011111A1 US 20040011111 A1 US20040011111 A1 US 20040011111A1 US 14083902 A US14083902 A US 14083902A US 2004011111 A1 US2004011111 A1 US 2004011111A1
- Authority
- US
- United States
- Prior art keywords
- strand
- clamp
- primaries
- frame
- drawing apparatus
- 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.)
- Granted
Links
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
- B21C1/04—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series
- B21C1/08—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series in which the material does not slip on the drums
- B21C1/10—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series in which the material does not slip on the drums with accumulation of material between consecutively-arranged dies
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
- B21C1/305—Linear motor pulling devices
Definitions
- the present invention relates to a drawing machine for a metal strand, that is a tube or rod. More particularly this invention concerns a device for generally continuously pulling the rod.
- German 2,852,071 of K. Rehag describes a straight-line pulling system which has two clamps movable along a line on a frame. They work in a hand-to-hand manner so as to continuously advance the strand. Each of the clamps is provided with a two-arm lever which is operated by a respective double cam with both cams on the same actuating shaft.
- Another object is the provision of such an improved drawing machine for a metallic strand which overcomes the above-given disadvantages, that is which operates smoothly at a relatively high speed, and that is of simple and reliable construction.
- An apparatus for drawing a strand has according to the invention a frame extending in a longitudinal direction, a pair of substantially identical linear motors each having a primary fixed on the frame, and a movable secondary slidable along the respective primary in the direction.
- the primaries extend parallel to the direction and are transversely spaced on a plane extending in the direction.
- a strand clamp capable of gripping the strand is fixed between the secondaries. Electricity is supplied to the primaries to longitudinally displace the secondaries and clamp in the frame so that the clamp and any strand held by it are advanced longitudinally through the frame.
- the secondary is about twice as long as the primary. Furthermore the primaries are provided with cooling fins.
- the primaries are provided with cooling fins.
- the secondaries can be fixed and the primary movable, but this requires flexible cables and hoses to supply power and coolant to the moving primaries.
- a second pair of substantially identical linear motors longitudinally spaced downstream in the direction from the first-mentioned pair each have a primary fixed on the frame and a movable secondary slidable along the respective primary in the direction.
- the primaries of the second pair of motors extend parallel to the direction and are transversely spaced along a second plane extending in the direction and crossing the plane of the first motors.
- a second strand clamp capable of gripping the strand and separate from the first-mentioned clamp is fixed between the secondaries of the second pair of motors.
- the primaries of the second pair of motors also are connected to the electricity supply.
- three or more clamps with respective motors on respective planes could also be used.
- Each primary according to the invention is of U-section, is generally bisected by the respective plane, and is open inward. Furthermore U-shaped upstream and downstream mounting plates respectively connect the first and second pairs of drive motors to the first and second clamps. The plates are open toward each other and interfit in a downstream end position of the first clamp and an upstream end position of the second clamp.
- each clamp is flanked by two of the U-shaped mounting plates open away from each other. Thus the two clamps can be brought almost into longitudinal engagement with each other since their linear-motor secondaries are transversely offset and their mounting plates interengage.
- the frame comprises a one-piece rail having a pair of downwardly projecting upper ribs provided with the upper primaries and a pair of upwardly projecting lower ribs provided with the lower primaries.
- the clamps are slidable along the ribs.
- Such a structure is extremely rigid.
- each clamp has a lower part extending transversely between and bridging the lower ribs and an upper part extending transversely between and bridging the upper ribs.
- the ribs are angled and extend symmetrically to a vertical center plane.
- FIG. 1 is a perspective view of a drawing machine according to the invention
- FIG. 2 is a small-scale side view of the machine
- FIG. 3 a is a section taken along line IIIa-IIIa of FIG. 2;
- FIG. 3 b is an end view taken in the direction of arrow IIIb of FIG. 2;
- FIG. 4 in a perspective view of another drawing machine in accordance with the invention.
- a drawing machine 1 has a frame 2 extending in a longitudinal direction L and holding a pair of clamps 3 and 4 designed to reciprocate in this direction L in hand-to-hand fashion to continuously advance a strand 8 from a die 24 (FIG. 2) and through the machine 1 in the longitudinal direction L.
- the frame 2 carries for the clamp 3 a lower drive 5 a and a generally identical upper drive 5 b and for the clamp 4 similar lower upper drives 6 a and 6 b spaced longitudinally downstream in the direction L from the drives 5 a and 5 b .
- the frame 2 is basically formed as a parallepiped with four longitudinal beams 23 and diagonal struts 27 on three sides, leaving one side horizontally open for servicing.
- the lower and upper drives 5 a and 5 b of the clamp 3 are constituted as linear electric motors having respective lower and upper short U-section primary rails 7 a and 7 b fixed on the frame 2 and open toward each other along an angled plane 9 that extends in the longitudinal direction L.
- These rails 7 a and 7 b incorporate coils and have outer faces 13 and 14 (FIG. 3 a ) provided with cooling fins 15 .
- the drives 5 a and 5 b also have respective movable secondaries 16 a and 16 b formed as long metallic plates flanked by plates 11 and 12 and slidable longitudinally in the respective U-section primary rails 7 a and 7 b .
- the plates 16 a and 16 b have inner edges 18 each connected to two U-shaped plates 19 a and 19 b having bights 21 secured to respective end faces 22 of the clamp 3 .
- the clamp 3 is longitudinally flanked by and fixed between the two plates 19 a and 19 b that are open longitudinally away from each other.
- Each plate 19 a and 19 b has a length equal generally to that of the respective primary rail 7 a and 7 b which in turn is equal to somewhat less than a quarter the overall length of the frame 2 , and the secondary plates 16 a and 16 b are a little more than twice as long as the respective primaries 7 a and 7 b . This makes it possible for the drives 5 a and 5 b to displace the clamp 3 through a distance equal to about half the length of the frame 2 at the upstream end thereof.
- the drives 6 a and 6 b are similarly constituted as linear electric motors having respective lower and upper short U-section primary rails 8 a and 8 b fixed on the frame 2 and open toward each other along an angled plane 10 that extends in the longitudinal direction L and that crosses the plane 9 on a line corresponding the center of the strand S held by the clamps 3 and 4 .
- These rails 8 a and 8 b are generally identical to the rails 7 a and 7 b .
- the drives 6 a and 6 b also have respective movable secondaries 17 a and 17 b formed like the secondaries 16 a and 16 b and slidable longitudinally in the respective U-section primary rails 8 a and 8 b .
- the plates 17 a and 17 b similarly are attached to and flank the clamp 4 .
- Each plate 17 a and 17 b has a length equal generally to that of the respective primary rail 8 a and 8 b which in turn is equal to somewhat less than a quarter the overall length of the frame 2 , and the secondary plates 18 a and 18 b are a little more than twice as long as the respective primaries 8 a and 8 b .
- downstream clamp 4 moves downstream while the upstream clamp 4 moves back upstream until they are in respective opposite end positions, whereby the upstream clamp 3 again grasps the strand S and moves downstream while the downstream clamp 4 releases the strand and moves upstream. In this manner the strand S is moved continuously.
- a one-piece frame 102 is unitarily formed with a pair of longitudinally extending and upwardly directed lower ribs 107 a and 108 a forming primaries and a pair of longitudinally extending and downwardly directed upper ribs 107 b and 108 b aligned with the respective ribs 107 a and 108 a and also forming linear-motor primaries.
- Clamps 103 and 104 in a space 116 between the ribs 107 a and 108 a on one side and 107 b and 108 b on the other side have downwardly extending secondary plates 132 a and 133 a riding on the rib 107 a and other unillustrated but identical plates riding on the rib 108 a . They also have upwardly extending secondary plates 132 b and 133 b riding on the rib 107 b and other unillustrated but identical secondary plates riding on the rib 108 b . These clamps further have mounting parts 37 and 38 that extend down between the lower ribs 107 a and 108 a.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Machine Tool Units (AREA)
- Linear Motors (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Wire Processing (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
An apparatus for drawing a strand has a frame extending in a longitudinal direction, a pair of substantially identical linear motors each having a primary fixed on the frame, and a movable secondary slidable along the respective primary in the direction. The primaries extend parallel to the direction and are transversely spaced on a plane extending in the direction. A strand clamp capable of gripping the strand is fixed between the secondaries. Electricity is supplied to the primaries to longitudinally displace the secondaries and clamp in the frame so that the clamp and any strand held by it are advanced longitudinally through the frame.
Description
- The present invention relates to a drawing machine for a metal strand, that is a tube or rod. More particularly this invention concerns a device for generally continuously pulling the rod.
- In order to reduce the cross-sectional size of a metallic strand, which can be a rod or tube, it is known to engage the strand and pull it continuously, usually through a die. Since the strand normally has a length equal to a multiple of the length of the drawing machine, it must be set up to grip, advance, and release the passing strand in such a manner that it moves continuously.
- German 2,852,071 of K. Rehag describes a straight-line pulling system which has two clamps movable along a line on a frame. They work in a hand-to-hand manner so as to continuously advance the strand. Each of the clamps is provided with a two-arm lever which is operated by a respective double cam with both cams on the same actuating shaft.
- Another system described in European 0,371,165 of G. Wuller has a rotating drum with arcuate surface ribs that produce the alternate clamp movements.
- As a result of the relatively short strokes of the clamps a large portion of each stroke is devoted to getting up to speed ad slowing down for reversal. In order to obtain a high average speed, it is therefore necessary to operate at a very high frequency. The mass of the clamps puts however an upper limit on how quickly they can be shuttled back and forth.
- It is therefore an object of the present invention to provide an improved drawing machine for a metallic strand.
- Another object is the provision of such an improved drawing machine for a metallic strand which overcomes the above-given disadvantages, that is which operates smoothly at a relatively high speed, and that is of simple and reliable construction.
- An apparatus for drawing a strand has according to the invention a frame extending in a longitudinal direction, a pair of substantially identical linear motors each having a primary fixed on the frame, and a movable secondary slidable along the respective primary in the direction. The primaries extend parallel to the direction and are transversely spaced on a plane extending in the direction. A strand clamp capable of gripping the strand is fixed between the secondaries. Electricity is supplied to the primaries to longitudinally displace the secondaries and clamp in the frame so that the clamp and any strand held by it are advanced longitudinally through the frame.
- Thus a pair of symmetrically arrayed linear motors are used to displace the clamp so that the forces applied to the strand are perfectly balanced to either side and there will be no tipping or canting of the clamps. Another advantage of this is that it is possible to control the speed of the clamp very accurately, moving it downstream at one speed and back upstream at another and very quickly stopping and starting it, something aided by the fact that the linear electric motors are not particularly massive and therefore have little inertia. The secondaries are simple structures, since it is only necessary to generate eddy currents in them as is known for an electric linear motor. The more complex primaries, which typically are formed with coil plates, are fixed. These linear motors are very compact so the overall apparatus can be relatively short.
- Normally in accordance with the invention the secondary is about twice as long as the primary. Furthermore the primaries are provided with cooling fins. For servicing the frame has a transversely open longitudinal side. The secondaries can be fixed and the primary movable, but this requires flexible cables and hoses to supply power and coolant to the moving primaries.
- In accordance with a particularly effective embodiment of the invention used for hand-to-hand advance of the strand a second pair of substantially identical linear motors longitudinally spaced downstream in the direction from the first-mentioned pair each have a primary fixed on the frame and a movable secondary slidable along the respective primary in the direction. The primaries of the second pair of motors extend parallel to the direction and are transversely spaced along a second plane extending in the direction and crossing the plane of the first motors. A second strand clamp capable of gripping the strand and separate from the first-mentioned clamp is fixed between the secondaries of the second pair of motors. The primaries of the second pair of motors also are connected to the electricity supply. Of course three or more clamps with respective motors on respective planes could also be used.
- Each primary according to the invention is of U-section, is generally bisected by the respective plane, and is open inward. Furthermore U-shaped upstream and downstream mounting plates respectively connect the first and second pairs of drive motors to the first and second clamps. The plates are open toward each other and interfit in a downstream end position of the first clamp and an upstream end position of the second clamp. In this arrangement in accordance with the invention each clamp is flanked by two of the U-shaped mounting plates open away from each other. Thus the two clamps can be brought almost into longitudinal engagement with each other since their linear-motor secondaries are transversely offset and their mounting plates interengage.
- According to another feature of the invention the frame comprises a one-piece rail having a pair of downwardly projecting upper ribs provided with the upper primaries and a pair of upwardly projecting lower ribs provided with the lower primaries. The clamps are slidable along the ribs. Such a structure is extremely rigid. In it each clamp has a lower part extending transversely between and bridging the lower ribs and an upper part extending transversely between and bridging the upper ribs. The ribs are angled and extend symmetrically to a vertical center plane.
- The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:
- FIG. 1 is a perspective view of a drawing machine according to the invention;
- FIG. 2 is a small-scale side view of the machine;
- FIG. 3a is a section taken along line IIIa-IIIa of FIG. 2;
- FIG. 3b is an end view taken in the direction of arrow IIIb of FIG. 2; and
- FIG. 4 in a perspective view of another drawing machine in accordance with the invention.
- As seen in FIG. 1 a drawing machine1 according to the invention has a
frame 2 extending in a longitudinal direction L and holding a pair ofclamps 3 and 4 designed to reciprocate in this direction L in hand-to-hand fashion to continuously advance a strand 8 from a die 24 (FIG. 2) and through the machine 1 in the longitudinal direction L. Theframe 2 carries for the clamp 3 alower drive 5 a and a generally identicalupper drive 5 b and for the clamp 4 similar lowerupper drives drives frame 2 is basically formed as a parallepiped with fourlongitudinal beams 23 anddiagonal struts 27 on three sides, leaving one side horizontally open for servicing. - The lower and
upper drives clamp 3 are constituted as linear electric motors having respective lower and upper short U-sectionprimary rails frame 2 and open toward each other along anangled plane 9 that extends in the longitudinal direction L. Theserails outer faces 13 and 14 (FIG. 3a) provided with cooling fins 15. Thedrives movable secondaries plates primary rails plates inner edges 18 each connected to twoU-shaped plates respective end faces 22 of theclamp 3. Thus theclamp 3 is longitudinally flanked by and fixed between the twoplates plate primary rail frame 2, and thesecondary plates respective primaries drives clamp 3 through a distance equal to about half the length of theframe 2 at the upstream end thereof. - The
drives primary rails frame 2 and open toward each other along anangled plane 10 that extends in the longitudinal direction L and that crosses theplane 9 on a line corresponding the center of the strand S held by theclamps 3 and 4. Theserails rails drives movable secondaries secondaries primary rails plates plate primary rail frame 2, and the secondary plates 18 a and 18 b are a little more than twice as long as therespective primaries drives frame 2 at the downstream end thereof. - With this system it is possible for a
power supply 26 connected to the coils imbedded in theplates coil plates clamps 3 and 4 move in a hand-to-hand manner. Thus as, for instance, theupstream clamp 3 is moving downstream while it is holding the strand S, the downstream clamp 4 is moved upstream until theupstream clamp 3 is in a downstream end position and the downstream clamp 4 is in an upstream end position with the downstream mountingplate 19 b of theupstream clamp 3 engaged with and longitudinally overlapping theupstream plate 20 a of the downstream clamp 4. The downstream clamp 4 is reversed and moved downstream as theupstream clamp 3 comes into its downstream end position, and theclamp 3 is released from the strand S and the clamp 4 grasps it. Thereafter the downstream clamp 4 moves downstream while the upstream clamp 4 moves back upstream until they are in respective opposite end positions, whereby theupstream clamp 3 again grasps the strand S and moves downstream while the downstream clamp 4 releases the strand and moves upstream. In this manner the strand S is moved continuously. - In the arrangement of FIG. 4 a one-
piece frame 102 is unitarily formed with a pair of longitudinally extending and upwardly directedlower ribs upper ribs respective ribs Clamps space 116 between theribs secondary plates rib 107 a and other unillustrated but identical plates riding on therib 108 a. They also have upwardly extendingsecondary plates rib 107 b and other unillustrated but identical secondary plates riding on therib 108 b. These clamps further have mountingparts lower ribs
Claims (12)
1. An apparatus for drawing a strand, the apparatus comprising:
a frame extending in a longitudinal direction;
a pair of substantially identical linear motors each having
a primary fixed on the frame, and
a movable secondary slidable along the respective primary in the direction,
the primaries extending parallel to the direction and being transversely spaced on a plane extending in the direction;
a strand clamp capable of gripping the strand and fixed between the secondaries; and
means for supplying electricity to the primaries and thereby longitudinally displacing the secondaries and clamp in the frame, whereby the clamp and any strand held by it are advanced longitudinally through the frame.
2. The strand-drawing apparatus defined in claim 1 , further comprising
a second pair of substantially identical linear motors longitudinally spaced downstream in the direction from the first-mentioned pair and each having
a primary fixed on the frame, and
a movable secondary slidable along the respective primary in the direction,
the primaries of the second pair of motors extending parallel to the direction and being transversely spaced along a second plane extending in the direction and crossing the plane of the first motors; and
a second strand clamp capable of gripping the strand, separate from the first-mentioned clamp, and fixed between the secondaries of the second pair of motors, the primaries of the second pair of motors also being connected to the supply means.
3. The strand-drawing apparatus defined in claim 2 wherein each primary is of U-section, is generally bisected by the respective plane, and is open inward.
4. The strand-drawing apparatus defined in claim 2 , further comprising:
U-shaped upstream and downstream mounting plates respectively connecting the first and second pairs of drive motors to the first and second clamps, the plates being open toward each other and interfitting in a downstream end position of the first clamp and an upstream end position of the second clamp.
5. The strand-drawing apparatus defined in claim 4 wherein each clamp is flanked by two of the U-shaped mounting plates open away from each other.
6. The strand-drawing apparatus defined in claim 2 wherein the frame comprises a one-piece rail having a pair of downwardly projecting upper ribs provided with the upper primaries and a pair of upwardly projecting lower ribs provided with the lower primaries, the clamps being slidable along the ribs.
7. The strand-drawing apparatus defined in claim 6 wherein each clamp has a lower part extending transversely between and bridging the lower ribs and an upper part extending transversely between and bridging the upper ribs.
8. The strand-drawing apparatus defined in claim 6 wherein the ribs are angled and extend symmetrically to a vertical center plane.
9. The strand-drawing apparatus defined in claim 1 wherein the secondary in about twice as long as the primary.
10. The strand-drawing apparatus defined in claim 1 wherein the primaries are provided with cooling fins.
11. The strand-drawing apparatus defined in claim 1 wherein the frame has a transversely open longitudinal side.
12. The strand-drawing apparatus defined in claim 1 wherein each of the primaries is provided with a longitudinally extending coil plate.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10122655 | 2001-05-10 | ||
DE10122655.1 | 2001-05-10 | ||
DE10122655A DE10122655C2 (en) | 2001-05-10 | 2001-05-10 | Drawing machine for drawing elongated material |
Publications (2)
Publication Number | Publication Date |
---|---|
US20040011111A1 true US20040011111A1 (en) | 2004-01-22 |
US6684675B1 US6684675B1 (en) | 2004-02-03 |
Family
ID=7684248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/140,839 Expired - Fee Related US6684675B1 (en) | 2001-05-10 | 2002-05-07 | Drawing machine |
Country Status (11)
Country | Link |
---|---|
US (1) | US6684675B1 (en) |
EP (1) | EP1262249B1 (en) |
JP (1) | JP3975115B2 (en) |
KR (1) | KR100862905B1 (en) |
CN (1) | CN1247335C (en) |
AT (1) | ATE340038T1 (en) |
CA (1) | CA2385411C (en) |
DE (2) | DE10122655C2 (en) |
ES (1) | ES2272601T3 (en) |
PL (1) | PL199742B1 (en) |
RU (1) | RU2245202C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092533A1 (en) * | 2004-03-28 | 2005-10-06 | Schumag Ag | Drawing machine and method for drawing a product to be drawn |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10204519A1 (en) * | 2002-02-05 | 2003-08-07 | Rudolf Bueltmann | Straight-drawing machine |
DE10341726B4 (en) * | 2003-09-10 | 2008-09-04 | Sms Meer Gmbh | Pulling device and method of operating a pulling device |
KR100850391B1 (en) * | 2006-09-07 | 2008-08-04 | 정해왕 | A pipe-drawing apparatus |
CN107181454B (en) * | 2017-05-26 | 2023-03-21 | 重庆科技学院 | Path extension track and solar panel connecting track thereof |
IT201900008901A1 (en) * | 2019-06-13 | 2020-12-13 | Danieli Off Mecc | DRAWING BENCH FOR DRAWING MACHINE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3881339A (en) * | 1972-05-25 | 1975-05-06 | Edwards & Co | Extrusion pullers |
US3948070A (en) * | 1974-01-10 | 1976-04-06 | Mannesmannrohren-Werke Ag | Motion control for the feed mechanism in pilger rolling mills |
US6179189B1 (en) * | 1998-05-29 | 2001-01-30 | Yamada Dobby, Co., Ltd. | Control device of continuous material feed device |
US6194859B1 (en) * | 1999-02-22 | 2001-02-27 | Michael R. Everman | X-Y positioner based on X axis motions |
US6262499B1 (en) * | 1999-03-24 | 2001-07-17 | Ab Rexroth Mecman | Device for providing a linear movement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD80421A (en) * | ||||
DE1206027C2 (en) * | 1964-04-06 | 1973-05-10 | Ibm Deutschland | Process for obtaining a digitized representation of natural language |
FR2289261A1 (en) * | 1974-11-04 | 1976-05-28 | Edwards Samuel | Extrusion puller esp for aluminium uses linear motors - mounted on pulling trolley running on fixed rail |
DE2549725A1 (en) * | 1975-11-06 | 1977-05-18 | Kabel Metallwerke Ghh | Seamless metal tube production - by combining first pass through die block with pilger rolling mill operation |
DE2852071C2 (en) * | 1978-11-29 | 1982-05-19 | Mannesmann AG, 4000 Düsseldorf | Slide drawing machine |
EP0371165B1 (en) * | 1988-11-30 | 1992-12-30 | Schumag Aktiengesellschaft | Motion drive |
DE19842384A1 (en) * | 1998-09-16 | 2000-03-23 | Schaeffler Waelzlager Ohg | Linear guide with guide housing operating as section carrier, has attached guide rail and drive for longitudinal movement of guide and running carriages |
-
2001
- 2001-05-10 DE DE10122655A patent/DE10122655C2/en not_active Expired - Fee Related
-
2002
- 2002-04-25 ES ES02009185T patent/ES2272601T3/en not_active Expired - Lifetime
- 2002-04-25 DE DE50208177T patent/DE50208177D1/en not_active Expired - Lifetime
- 2002-04-25 AT AT02009185T patent/ATE340038T1/en not_active IP Right Cessation
- 2002-04-25 EP EP02009185A patent/EP1262249B1/en not_active Expired - Lifetime
- 2002-05-04 KR KR1020020024599A patent/KR100862905B1/en not_active IP Right Cessation
- 2002-05-07 RU RU2002112355/02A patent/RU2245202C2/en active
- 2002-05-07 US US10/140,839 patent/US6684675B1/en not_active Expired - Fee Related
- 2002-05-08 CA CA002385411A patent/CA2385411C/en not_active Expired - Fee Related
- 2002-05-09 PL PL353782A patent/PL199742B1/en not_active IP Right Cessation
- 2002-05-09 JP JP2002134472A patent/JP3975115B2/en not_active Expired - Fee Related
- 2002-05-10 CN CNB021221936A patent/CN1247335C/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3881339A (en) * | 1972-05-25 | 1975-05-06 | Edwards & Co | Extrusion pullers |
US3948070A (en) * | 1974-01-10 | 1976-04-06 | Mannesmannrohren-Werke Ag | Motion control for the feed mechanism in pilger rolling mills |
US6179189B1 (en) * | 1998-05-29 | 2001-01-30 | Yamada Dobby, Co., Ltd. | Control device of continuous material feed device |
US6194859B1 (en) * | 1999-02-22 | 2001-02-27 | Michael R. Everman | X-Y positioner based on X axis motions |
US6262499B1 (en) * | 1999-03-24 | 2001-07-17 | Ab Rexroth Mecman | Device for providing a linear movement |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005092533A1 (en) * | 2004-03-28 | 2005-10-06 | Schumag Ag | Drawing machine and method for drawing a product to be drawn |
US20070267276A1 (en) * | 2004-03-28 | 2007-11-22 | Heiner Kudrus | Drawing Machine and Method of Drawing a Workpiece |
US7743911B2 (en) | 2004-03-28 | 2010-06-29 | Sms Schumag Gmbh & Co. Kg | Drawing machine and method of drawing a workpiece |
Also Published As
Publication number | Publication date |
---|---|
CN1247335C (en) | 2006-03-29 |
PL353782A1 (en) | 2002-11-18 |
ATE340038T1 (en) | 2006-10-15 |
PL199742B1 (en) | 2008-10-31 |
DE10122655C2 (en) | 2003-06-12 |
US6684675B1 (en) | 2004-02-03 |
EP1262249A2 (en) | 2002-12-04 |
KR20020086234A (en) | 2002-11-18 |
CA2385411C (en) | 2009-09-08 |
JP2002346627A (en) | 2002-12-03 |
EP1262249B1 (en) | 2006-09-20 |
JP3975115B2 (en) | 2007-09-12 |
KR100862905B1 (en) | 2008-10-13 |
DE10122655A1 (en) | 2003-02-27 |
ES2272601T3 (en) | 2007-05-01 |
CA2385411A1 (en) | 2002-11-10 |
CN1385256A (en) | 2002-12-18 |
DE50208177D1 (en) | 2006-11-02 |
RU2245202C2 (en) | 2005-01-27 |
EP1262249A3 (en) | 2003-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6684675B1 (en) | Drawing machine | |
US8302451B2 (en) | Can manufacturing device and can manufacturing method | |
US7624768B2 (en) | Method and apparatus for forming a wire to include coil segments | |
ITMI960826A1 (en) | MULTI-PHASE EQUIPMENT FOR TRANSVERSAL FLOW | |
RU2664771C1 (en) | Drive system with the transmission of electromagnetic energy | |
JP6877042B2 (en) | An automatic press brake or bending machine that bends a metal sheet material, and a method of bending a metal sheet material with such an automatic press brake or bending machine. | |
CN105281535A (en) | Rectilinear motion linear module group | |
CN103296857A (en) | Double-edge staggered teeth flat type flux switching permanent magnet linear motor | |
US6715332B2 (en) | Method of drawing metal workpieces and drawing unit for a drawing machine | |
JP2002346628A (en) | Drawing unit and drawing runner for drawing lengthy material | |
US5007814A (en) | Device for separating and closing a split mold having two halves | |
KR20010078092A (en) | High-thrust linear motor and method of producing the same | |
CN214921650U (en) | Automatic welding device for machining iron accessories | |
DE1804480A1 (en) | Door actuation device | |
JP2008239027A (en) | Operating lever shifting mechanism for electric shunt | |
US1721636A (en) | Machine for forming armature conductors | |
CN113060513A (en) | Directional uninterrupted feeding system for annular electronic devices | |
US7275405B2 (en) | Straight drawing machine | |
CN109025314A (en) | A kind of pre- stretching machine | |
CN211360941U (en) | Lateral part tapping equipment of channel-section steel class footboard | |
KR101530975B1 (en) | Cable Traction Apparatus of Cable Tray Side-mounted | |
CN208960754U (en) | A kind of equipment that the side wall for tubular handware carries out punch process | |
KR20160129324A (en) | Transfer apparatus using linear motor | |
US4012974A (en) | Apparatus for cutting glass | |
JP2008093986A (en) | Mold clamping device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SMS MEER GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KLINGEN, HERMANN-JOSEF;ZILLEKENS, NORBERT;BONSELS, RALF;AND OTHERS;REEL/FRAME:012886/0261 Effective date: 20020502 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20120203 |