EP3487644A1 - Chariots d'étirage destinés à une machine de formage par étirage ainsi que machine de formage par étirage - Google Patents

Chariots d'étirage destinés à une machine de formage par étirage ainsi que machine de formage par étirage

Info

Publication number
EP3487644A1
EP3487644A1 EP17764320.2A EP17764320A EP3487644A1 EP 3487644 A1 EP3487644 A1 EP 3487644A1 EP 17764320 A EP17764320 A EP 17764320A EP 3487644 A1 EP3487644 A1 EP 3487644A1
Authority
EP
European Patent Office
Prior art keywords
carriage
jaws
slide
movement
jaw
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
Application number
EP17764320.2A
Other languages
German (de)
English (en)
Other versions
EP3487644B1 (fr
Inventor
Ottavio Pinosa
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.)
EJP Maschinen GmbH
Original Assignee
EJP Maschinen GmbH
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 EJP Maschinen GmbH filed Critical EJP Maschinen GmbH
Publication of EP3487644A1 publication Critical patent/EP3487644A1/fr
Application granted granted Critical
Publication of EP3487644B1 publication Critical patent/EP3487644B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B21C1/27—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

  • the invention relates to a drawing carriage for a drawing machine according to the preamble of claim 1 and a drawing machine according to the preamble of claim 5.
  • Drawing machines are used to pull elongated metallic objects, such as rods or tubes, through a pulling tool.
  • Clamping jaws grab the stock and through the drawing tool along a
  • Draw carriage has open jaws that take the stock between them.
  • the first stop cooperates with the closing lever and causes the closing of the jaws.
  • a second stop causes the jaws to open so that the drawing slide can be returned.
  • two electromagnets are used, one of which is responsible for the closing movement and the other for the opening movement.
  • Electromagnets abruptly operate via articulated rods the closing / opening lever, the power supply via sliding contacts.
  • From DE 101 22 657 A1 discloses a tractor unit for a drawing machine, which comprises a drawing slide of the type mentioned.
  • the prior art drawing machine can operate continuously by having a plurality of drawing carriages and pulling the product to be pulled in a hand-in-hand operation.
  • the periodic movement of, for example, two drawing slides is coordinated so that a first drawing carriage engages and pulls the product to be pulled, while the second drawing slide in a starting position moves to grab the stock.
  • the first drawing carriage has already detached from the drawing material and in turn returns to its original position in order to grasp and pull the drawing material again.
  • the movement of the drawing carriage parallel to the drawing direction can, for. B. by means of a rotating drum with curved on the surface of the drum extending webs or by means of linear motors are generated (see DE 37 29 892 A1).
  • the known drawing carriages have clamping jaws for gripping the drawn material.
  • the jaws are arranged directly or indirectly on wedge-shaped guides, so that there is a self-locking clamping during the drawing process.
  • the manner of opening and closing is not expressly disclosed.
  • the object is achieved in a drawing carriage of the type mentioned by the characterizing features of claim 1 and in a drawing machine of the type mentioned by the characterizing feature of claim 5.
  • a linear motor for the opening and closing movement of the jaws is less expensive compared to the pneumatic or hydraulic solution or compared to the use of two electromagnets according to the prior art. So mechanical components can be saved, which can reduce the maintenance. A mechanical adjustment of the jaws can be omitted.
  • Jaw movement important.
  • the translational movement of the respective carriage and the closing or opening movement of the clamping jaws must be precisely matched to each other, e.g. to avoid slippage of the drawn material in the drawing carriage due to late closing jaws or upsetting due to prematurely closing jaws.
  • Such tuning or synchronization occurs e.g. in that the position of the drawing carriage is detected, e.g. via monitoring of a drive means for the drawing slide.
  • the at least one drawing carriage is driven by means of drive curves defined by curved webs of a rotating drive unit, e.g. a drive shaft, are realized.
  • a drawing slide curved web is tapped from this drawing slide, whereby the drawing slide in a
  • the drive unit can be set up so that the position of the drawing carriage is unambiguous given the rotational position of the drive unit.
  • the rotational position of the drive unit e.g. can be determined via a rotary encoder, the moment are determined at which the linear motor moves the jaws of the drawing slide to open or close.
  • the position of the drawing carriage may be directly monitored, e.g. by means of optical or electrical sensors.
  • FIG. 1 a drawing carriage with a linear motor in a side view
  • FIG. 2 the drawing carriage according to FIG. 1 in a plan view
  • Fig. 3 a lower part of the drawing slide according to FIG. 1 without attachment for the
  • FIG. 4 a clamping device of the drawing carriage in the opened state
  • FIG. 5 in front side view the clamping jaws in the opened state
  • FIG. 6 the clamping jaws according to FIG. 4 in a closed state in plan view
  • FIG. 7 the clamping jaws in the closed state in a side view
  • Fig. 8 shows a drawing machine in a plan view.
  • Fig. 1 shows a side view of a drawing carriage 1 for a drawing machine, not shown here.
  • the drawing carriage 1 engages around a drive web, not shown in FIG. 1, which rotates about the longitudinal axis 26 and defines a drive curve.
  • Fig. 8 shows hinted drive webs 29 and 30, which are fixed to a drive shaft 28. In fact, in the selected view invisible parts of the drive webs 29 and 30 are also shown for ease of illustration.
  • Antriebsstegrollen 2 provide in the relative movement between the drive ridge 30 and slide carriage 1 for a low resistance.
  • For the translational movement is the drawing slide on the drawing machine (see Fig. 8) out, for what
  • Translation movement rollers 31 (see FIGS. 2 and 3) are provided.
  • a linear motor 4 which comprises a permanent magnet stator having part 5, which is fixed to the upper part 3 and not shown here in detail.
  • a sliding carriage 6 as a rotor part of the linear motor 4 comprises in a lower
  • the sliding carriage 6 has a transmission rod 9, on which a bridge 10 is fixed.
  • the sliding carriage 6 and the bridge 10 are slidably guided via sliding sleeves 1 1 on guide rods 12 shown solely in FIG. 2, so that only linear movements in the direction of the double arrow are possible and lateral breakouts are prevented.
  • the guide rods 12 are fixed in rod holders 22.
  • a jaw holder 13 is indicated below the linear motor 4, in which an engaging rod 14 of the bridge 10 engages positively, so that the
  • the left disc spring assembly 21 is marked with a reference numeral. 3 shows a lower part 15 of the drawing carriage 1 with two clamping jaws 16, which are each held by one of the clamping jaw holders 13.
  • the jaw holders 13 have engagement slots 17 for engaging one of the engagement bars 14, respectively.
  • the jaw holders 13 are mounted by means of ball bearings 18 on a wedge-shaped guide 19 of the slide carriage lower part 15.
  • the jaw holders 13 are also guided in such a way that when they move to the left (in FIG. 3) they are perpendicular thereto
  • Fig. 4 shows the jaw holder 13 and the jaws 16 together with the ball bearing 18 in the open state.
  • 5 shows jaw holder 13,
  • FIGS. 6 and 7 show, in plan view and in side view, the structures according to FIGS. 4 and 5, but in the closed state of the clamping jaws 16.
  • the drawing carriage 1 is with its jaws 16 in the open state, it is of a guided through the drawing carriage 1 to be pulled (not here
  • the drawn material can be introduced via a Ziehgut-entry 20 in the drawing carriage 1.
  • an optional pull-in forceps 24 can be used, which e.g. can also be moved relative to the lower part 15 of the drawing carriage 1 via a linear motor, not shown in detail here, and feeds the material to be conveyed, until it is moved by the
  • Jaws 16 can be packed. Is the slide 1 in the
  • the closing state is achieved by the movement of the linear motor 4 by the jaw holder 13 in the direction of the Ziehguteintritt 20, d. H. in the figures 1 to 4 and 6 to the right, are moved. If then the entire drawing carriage 1 is moved in the pulling direction and thereby the Ziehgut, z. B. a rod or pipe is pulled, a self-locking of the clamping is achieved by the wedge-shaped guide 19.
  • Fig. 8 shows in plan view a drawing machine with two drawing slides 1 a and 1 b.
  • the front drawing carriage 1 a has the pull-in pliers 24 (see FIG. 1) for the not shown here Pulling on, while the rear drawing slide 1 b comprises an inlet funnel 25, which facilitates the transfer of the front end of the drawn material from the front drawing carriage 1 a on the rear drawing slide 1 b.
  • a drive shaft 28 is rotated by means of a motor 27, for example an electric motor, and here not shown gear means.
  • Two drive webs 29 and 30 are non-rotatably arranged on the drive shaft 28, which are respectively encompassed by one of the drawing carriages 1 a and 1 b and on which driving roller elements 2 (only shown in FIG. 1) roll.
  • the drawing slides 1 a and 1 b are guided by means of guides 32 and 33 along which the drawing carriages 1 a and 1 b are guided via translation movement rollers 31 (see FIGS. 2 and 3) into the desired translatory movement
  • Alignment motors 34 and 35 may be provided. Subsequently, the drive shaft 28 is rotated, whereby the drawing slide 1 a and 1 b are forced into a reciprocating motion.
  • the front slide 1 a moves in Fig. 8, first from right to left. Before the drive curve forces the front slide 1 a back to the right, opens the puller 24 and the front slide 1 a moves then open jaws 16 (see Fig. 3 and 4) back to the right, so that the front slide 1 a then also with its jaws 16 may include the drawn material.
  • the puller 24 may also be moved relative to the jaws, e.g. by means of a further, not shown here linear motor until the jaws 16 can detect the stock.
  • the drawn material is the second drawing carriage 1 b passed, which performs a slide carriage 1 a opposite translation movement.
  • the front slide 1 a is therefore in its rearmost position, while the rear slide 1 b occupies its foremost position. It therefore always draws exactly one of the two slide 1 a or 1 b with closed jaws 16, the drawn material in Fig. 8 to the left while the other drawing slide 1 a or 1 b moves back with open jaws 16 in its forward position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Manipulator (AREA)
  • Advancing Webs (AREA)

Abstract

L'invention concerne un chariot d'étirage destiné à une machine de formage par étirage, comprenant deux mors (16) ainsi qu'un dispositif de déplacement de mors destiné à un mouvement d'ouverture et un mouvement de fermeture des mors (16), caractérisé en ce que le dispositif de déplacement des mors comporte un moteur linéaire (4). Dans le cas d'une machine de formage par étirage, comprenant une unité d'entraînement destinée à l'entraînement d'au moins deux chariots d'étirage (1), les chariots d'étirage (1) présentent un moteur linéaire (4) destiné au dispositif de déplacement des mors.
EP17764320.2A 2016-07-25 2017-07-25 Chariots d'étirage destinés à une machine de formage par étirage ainsi que machine de formage par étirage Active EP3487644B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016113686.7A DE102016113686A1 (de) 2016-07-25 2016-07-25 Ziehschlitten für eine Ziehmaschine
PCT/DE2017/100620 WO2018019335A1 (fr) 2016-07-25 2017-07-25 Chariots d'étirage destinés à une machine de formage par étirage ainsi que machine de formage par étirage

Publications (2)

Publication Number Publication Date
EP3487644A1 true EP3487644A1 (fr) 2019-05-29
EP3487644B1 EP3487644B1 (fr) 2020-09-02

Family

ID=59811040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17764320.2A Active EP3487644B1 (fr) 2016-07-25 2017-07-25 Chariots d'étirage destinés à une machine de formage par étirage ainsi que machine de formage par étirage

Country Status (8)

Country Link
US (1) US11498102B2 (fr)
EP (1) EP3487644B1 (fr)
JP (1) JP7023926B2 (fr)
KR (1) KR102377289B1 (fr)
CN (1) CN109789456B (fr)
DE (1) DE102016113686A1 (fr)
RU (1) RU2738584C2 (fr)
WO (1) WO2018019335A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201372A1 (de) 2019-02-04 2020-08-06 Sms Group Gmbh Elektrohydraulische Ziehbackensteuerung

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE897237C (de) * 1942-12-08 1953-11-19 Schumag Schumacher Metallwerke Einziehzange an Ziehschlitten
DE932786C (de) * 1951-06-06 1955-09-08 Kreidler Dipl Ing Alfred Ziehbank mit einem oder mehreren vor- und ruecklaufenden oder mit der Ziehkette umlaufenden Ziehwagen
DE932766C (de) 1954-02-20 1955-09-08 Volkswagenwerk G M B H Radanlenkung fuer Kraftfahrzeuge
DE3005371C2 (de) * 1980-02-11 1982-12-30 Mannesmann AG, 4000 Düsseldorf Schlittenziehmaschine zum fortlaufenden Ziehen strangförmigen Gutes
DE3130820C1 (de) 1981-08-04 1983-08-25 Schumag Gmbh, 5100 Aachen Vorrichtung zur Steuerung einer mit verschiedenen Arbeitsgeschwindigkeiten betriebenen Schlittenziehmaschine
DE3729892A1 (de) * 1987-09-07 1989-03-23 Kieserling Ziehmaschinen Ziehmaschine
DE3823134C1 (en) 1988-07-05 1989-04-20 Mannesmann Ag, 4000 Duesseldorf, De Method and apparatus for the production of tubes by the cold-pilger method
JP2001121326A (ja) * 1999-10-29 2001-05-08 Mitsubishi Electric Corp コレットチャック開閉装置
JP2002192410A (ja) * 2000-12-27 2002-07-10 Hitachi Seiki Co Ltd 電動チャック装置
JP4198994B2 (ja) * 2001-01-11 2008-12-17 エーヨットペー・マシイネン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 引抜き機械
DE10122658C2 (de) * 2001-05-10 2003-05-28 Sms Meer Gmbh Zugeinheit zum Ziehen von langgestrecktem Material sowie Ziehstraße
DE10122657B4 (de) 2001-05-10 2006-07-13 Sms Meer Gmbh Zugeinheit für eine Ziehmaschine sowie Verfahren zum Ziehen eines Ziehgutes mit dieser Zugeinheit und diskontinuierlich arbeitende Ziehmaschine
DE10204519A1 (de) * 2002-02-05 2003-08-07 Rudolf Bueltmann Geradeaus-Ziehmaschine
DE10229690B4 (de) * 2002-06-26 2010-03-25 Newfrey Llc, Newark Vorrichtung und Verfahren zum Kurzzeit-Lichtbogenschweißen
WO2008053529A1 (fr) * 2006-10-31 2008-05-08 Daishowa Seiki Co., Ltd. Composant pour pince de serrage, douille, écrou de serrage et pince de serrage
US20080155841A1 (en) 2006-12-29 2008-07-03 Po-Lin Ho Drawing machine
CN201493329U (zh) 2008-09-19 2010-06-02 省冈机械工业股份有限公司 金属棒材拉伸机
CN102161056B (zh) 2010-02-24 2013-03-13 宁波金田铜管有限公司 一种拉拨机上的拉拨小车的往复运动机构
ES2805324T3 (es) 2012-09-28 2021-02-11 Hollister Inc Un procedimiento y aparato para el moldeado por inyección de un artículo hueco alargado
CN103447327B (zh) * 2013-09-17 2015-07-08 西安麦特沃金液控技术有限公司 液压连续拉拔机

Also Published As

Publication number Publication date
JP7023926B2 (ja) 2022-02-22
KR20190032510A (ko) 2019-03-27
CN109789456B (zh) 2021-06-11
WO2018019335A1 (fr) 2018-02-01
KR102377289B1 (ko) 2022-03-22
RU2019104419A3 (fr) 2020-10-29
JP2019523139A (ja) 2019-08-22
RU2738584C2 (ru) 2020-12-14
RU2019104419A (ru) 2020-08-25
EP3487644B1 (fr) 2020-09-02
DE102016113686A1 (de) 2018-01-25
US20190224733A1 (en) 2019-07-25
CN109789456A (zh) 2019-05-21
US11498102B2 (en) 2022-11-15

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