EP0104955A2 - Vorrichtung und Verfahren zum Drahtziehen - Google Patents

Vorrichtung und Verfahren zum Drahtziehen Download PDF

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Publication number
EP0104955A2
EP0104955A2 EP83305843A EP83305843A EP0104955A2 EP 0104955 A2 EP0104955 A2 EP 0104955A2 EP 83305843 A EP83305843 A EP 83305843A EP 83305843 A EP83305843 A EP 83305843A EP 0104955 A2 EP0104955 A2 EP 0104955A2
Authority
EP
European Patent Office
Prior art keywords
wire
frame
carriage
die
chuck
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.)
Withdrawn
Application number
EP83305843A
Other languages
English (en)
French (fr)
Other versions
EP0104955A3 (de
Inventor
Shigeo Shihyakugari
Etsuro Watanabe
Tetsuo Yamaguchi
Seiji Hirai
Osamu Kohno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Publication of EP0104955A2 publication Critical patent/EP0104955A2/de
Publication of EP0104955A3 publication Critical patent/EP0104955A3/de
Withdrawn legal-status Critical Current

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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
    • B21C1/16—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
    • B21C1/18—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 from stock of limited length
    • 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
    • B21C1/28—Carriages; Connections of grippers thereto; Grippers
    • 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

Definitions

  • This invention relates to an apparatus for and a method of drawing a wire to reduce a cross-section thereof.
  • One conventional wire drawing apparatus 10 shown in FIG.1 comprises a horizontal elongated frame 11 having front and rear ends lla and llb, such wire drawing apparatus being commonly referred to as "drawbench” in the trade.
  • a drawing die 12 is detachably mounted on the top llc of the frame 11 and disposed intermediate opposite ends thereof.
  • a carriage 13 is mounted on the top llc of the frame 11 for reciprocable movement along a drawing section lld of the frame 11 extending between the drawing die 12 and the front end lla.
  • a chuck 14 is fixedly secured to one end of the carriage 13 directed toward the drawing die 12.
  • a hook member 15 is mounted on the other end of the carriage 13 for vertical pivotal movement.
  • a drive pulley 16 is rotatably mounted on the front end lla of the frame 11 while a driven pulley 17 is rotatably mounted on the frame 11 at a position below the drawing die I2,
  • a plurality of guide rollers 18 are rotatably mounted on " the frame 11 and disposed between the drive and driven pulleys 16 and 17.
  • An endless chain 20 extends around the drive and driven pulleys 16 and 17 and guided by the guide rollers 18.
  • the drive pulley 16 is operatively connected to a motor (not shown) for being driven for rotation.
  • the endless chain 20 is composed of longitudinally disposed links 20a and transverse pins 20b as shown in FIG.2.
  • the hook member 15 is adapted to be engaged with a selected one of the pins 20b of the endless chain 20.
  • one end of the wire 22 is first processed into a tapered shape, and the wire 22 is placed on the top llc of a delivery section lle of the frame 11 with the tapered end passed through a hole of the drawing die 12. Then, the tapered end passing through the drawing die 12 is clamped by the chuck 14. Then, the hook member 15 is pivotally moved downwardly to engage with the pin 20b of the endless chain 20 disposed below the hook member 15, as shown in FIG.3.
  • the endless chain 20 is driven by the motor to move around the drive and driven pulleys 16 and 17 to move the carriage 13 along the frame 11 toward the front end lla thereof, so that the wire 22 is pulled through the drawing die 12 to reduce the diameter thereof at a predetermined rate.
  • the wire 22 is detached from the chuck 14. Then, the drawing die 12 is replaced by another die having a hole smaller in diameter than the hole of the die 12. Then, one end of the wire 22 is processed to reduce its diameter so that the reduced or tapered end can be passed through the drawing die.
  • the second drawing operation is carried out according to the above-mentioned procedure. Usually, the wire is drawn several times in this manner, using drawing dies having holes of different diameters. Thus, the wire is reduced in diameter or cross-section at a predetermined rate each time the drawing operation is carried out.
  • the drawing operation When a wire having a diameter of 20 mm is to be reduced to a diameter of 4 mm at a reduction rate of 20 %, the drawing operation must be carried out seven times, and each time the drawing operation is completed, the wire has to be transferred from the drawing section lld to the delivery section lle for the next drawing operation. This requires much time.
  • the delivery section lle should have a length generally equal to that of the drawing section lld.
  • the frame 11 has to be twice the length of the finished wire.
  • the wire drawing apparatus 10 has an increased overall size and therefore is space-consuming.
  • Another object is to provide a method of drawing a wire in an efficient manner.
  • an apparatus for drawing a wire which comprises an elongated frame; a carriage mounted on the frame for movement therealong; a chuck mounted on the frame at one end thereof for holding one end of the wire; a drawing die mounted on the carriage for passing the wire therethrough; and drive means operatively connected to the carriage for moving it along the frame away from the chuck to move said die along the wire, thereby reducing the cross-section of the wire.
  • a method of drawing wire which comprises the steps of passing one end of the wire through a drawing die; holding the one end of the wire against movement; and moving the drawing die along the wire away from the chuck to reduce a cross-section of the wire.
  • wire means both a wire of the solid type and a hollow elongated element.
  • a wire drawing apparatus 30 shown in FIG.4 comprises a horizontal elongated frame 11 having front and rear ends lla and llb.
  • a support member 31 is fixedly mounted on the top llc of the frame 11 adjacent to the rear end llb.
  • a chuck 14 is fixedly mounted on one surface of the support member 31 facing away from the rear end lib and spaced upwardly from the top llc of the frame 11.
  • a carriage 13 is mounted on the top llc of the frame 11 for reciprocable movement along the frame 11 between the chuck 14 and the front end lla of the frame 11, the carriage 13 having rolls 13a disposed in rolling engagement with rails (not shown) mounted on the frame 11.
  • the carriage 13 has a vertically pivotable hook member 15 mounted on one surface thereof directed toward the front end lla of the frame 11.
  • a drive pulley 16 and a driven pulley 17 are rotatably mounted on the frame 11, and an endless chain 20 extends around the drive and driven pulleys 16 and 17 and guided by guide rollers 18.
  • the drive pulley 16 is operatively connected to an electric motor (not shown) for being driven for rotation.
  • a drawing die 12 is detachably mounted on the carriage 13 through a die holder 33, and has a hole 12a for passing the wire therethrough.
  • the hole 12a of the die 12 has an axis disposed in alignment with the axis of the chuck 14 and disposed in parallel with the axis of the frame 11.
  • the hole 12a of the die 12 tapers in a direction toward the chuck 14.
  • one end of the wire 22 is first processed into a tapered shape, and the wire 22 is placed on the top llc of the frame 11 with the tapered end of the wire 22 passed through the hole 12a of the die 12 and clamped by the chuck 14.
  • the carriage 13 is located immediately adjacent to the chuck 14.
  • the hook member 15 is pivotally moved downwardly to engage with the pin 20b of the endless chain 20 disposed below the hook member 15.
  • the endless chain 20 is driven by the motor for movement around the drive and driven pulleys 16 and 17 to move the carriage 13 along the frame 11 toward the front end lla, so that the die 12 moves along the wire 22 to reduce the diameter thereof at a predetermined rate.
  • the carriage 13 is caused to automatically stop when the hook member 15 reaches the drive pulley 16.
  • the drawing die 12 is detached from the die holder 33 and replaced by another die having a die hole smaller in size than the hole 12a of the die 12. Then, the second drawing operation is carried out according to the procedure mentioned above.
  • the wire 22 is drawn several times in this manner, using a plurality of drawing dies having holes of different sizes until the wire 22 is reduced to a desired diameter.
  • the wire drawing apparatus 30 does not require a delivery section as is the case with the prior art wire drawing apparatus 10 and therefore can be reduced to a length generally equal to the length of the finished wire.
  • the wire drawing apparatus 30 is quite space-saving.
  • the wire does not need to be transferred to the delivery section each time the drawing operation is completed. Therefore, the drawing operation can be carried out quite efficiently.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
EP83305843A 1982-09-29 1983-09-28 Vorrichtung und Verfahren zum Drahtziehen Withdrawn EP0104955A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP170705/82 1982-09-29
JP17070582A JPS5961521A (ja) 1982-09-29 1982-09-29 線材の引き抜き加工方法

Publications (2)

Publication Number Publication Date
EP0104955A2 true EP0104955A2 (de) 1984-04-04
EP0104955A3 EP0104955A3 (de) 1984-07-11

Family

ID=15909862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83305843A Withdrawn EP0104955A3 (de) 1982-09-29 1983-09-28 Vorrichtung und Verfahren zum Drahtziehen

Country Status (2)

Country Link
EP (1) EP0104955A3 (de)
JP (1) JPS5961521A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801572A (zh) * 2014-01-15 2014-05-21 无锡常欣科技股份有限公司 夹线器
CN109078995A (zh) * 2018-08-27 2018-12-25 湖州市练市创鑫金属拉丝厂 一种金属拉丝装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103909106B (zh) * 2014-04-01 2016-03-30 太仓东青金属制品有限公司 一种精密拉管机
CN105772524A (zh) * 2016-04-20 2016-07-20 德清天润金属制品有限公司 一种无缝钢管拉拔设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE77616C (de) * H. dollmann, Birmingham, Warwickshire, Engl Ziehbank zum gleichzeitigen Ziehen mehrerer Arbeitsstücke
DE1752909A1 (de) * 1968-08-02 1970-12-23 Kellermann Fa Rudolf Verfahren und Vorrichtung zur Herstellung von Dehnschaeften bei an den Enden verdickten Werkstuecken
DE2549725A1 (de) * 1975-11-06 1977-05-18 Kabel Metallwerke Ghh Verfahren zum herstellen nahtloser metallrohre
US4079616A (en) * 1976-03-19 1978-03-21 Viktor Afanasievich Zazimko Draw bench for producing cylindrical tubular items by drawing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE77616C (de) * H. dollmann, Birmingham, Warwickshire, Engl Ziehbank zum gleichzeitigen Ziehen mehrerer Arbeitsstücke
DE1752909A1 (de) * 1968-08-02 1970-12-23 Kellermann Fa Rudolf Verfahren und Vorrichtung zur Herstellung von Dehnschaeften bei an den Enden verdickten Werkstuecken
DE2549725A1 (de) * 1975-11-06 1977-05-18 Kabel Metallwerke Ghh Verfahren zum herstellen nahtloser metallrohre
US4079616A (en) * 1976-03-19 1978-03-21 Viktor Afanasievich Zazimko Draw bench for producing cylindrical tubular items by drawing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103801572A (zh) * 2014-01-15 2014-05-21 无锡常欣科技股份有限公司 夹线器
CN109078995A (zh) * 2018-08-27 2018-12-25 湖州市练市创鑫金属拉丝厂 一种金属拉丝装置
CN109078995B (zh) * 2018-08-27 2024-04-26 嘉兴亚华线缆有限公司 一种金属拉丝装置

Also Published As

Publication number Publication date
JPS5961521A (ja) 1984-04-07
EP0104955A3 (de) 1984-07-11

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Effective date: 19850617

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Inventor name: YAMAGUCHI, TETSUO

Inventor name: KOHNO, OSAMU

Inventor name: HIRAI, SEIJI

Inventor name: WATANABE, ETSURO

Inventor name: SHIHYAKUGARI, SHIGEO