EP1509348B1 - Enrouleur automatique comprenant un dispositif d'insertion - Google Patents

Enrouleur automatique comprenant un dispositif d'insertion Download PDF

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Publication number
EP1509348B1
EP1509348B1 EP03755129A EP03755129A EP1509348B1 EP 1509348 B1 EP1509348 B1 EP 1509348B1 EP 03755129 A EP03755129 A EP 03755129A EP 03755129 A EP03755129 A EP 03755129A EP 1509348 B1 EP1509348 B1 EP 1509348B1
Authority
EP
European Patent Office
Prior art keywords
insertion device
automatic rolling
rolling machine
linear motor
reciprocating member
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.)
Revoked
Application number
EP03755129A
Other languages
German (de)
English (en)
Other versions
EP1509348A1 (fr
Inventor
Enrico Ghezzi
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.)
SMART Srl
Original Assignee
SMART Srl
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
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Application filed by SMART Srl filed Critical SMART Srl
Publication of EP1509348A1 publication Critical patent/EP1509348A1/fr
Application granted granted Critical
Publication of EP1509348B1 publication Critical patent/EP1509348B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00Making gear wheels, racks, spline shafts or worms
    • B21H5/02Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/027Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H9/00Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
    • B21H9/02Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass for screw-rolling machines

Definitions

  • the present invention relates to an automatic rolling machine.
  • Rolling machines can be used to produce screws and generate the thread by cold rolling.
  • the blank is placed between two plates, one of which is motionless while the other can perform a reciprocating motion, and the plates roll the blank under pressure.
  • the plates have protrusions that are inclined at the angle that corresponds to the pitch of the thread to be formed, they constitute a female thread spread flat, and by pressing the material they force it to assume the shape of the thread.
  • GB-882125 which forms the basis for the preamble of claim 1, discloses a thread rolling machine provided with a mechanism for feeding blanks into a gap formed by two rolling dies.
  • the aim of the present invention is to provide an insertion device particularly for automatic rolling machines that is more functional and efficient than insertion devices used in conventional machines.
  • An object of the invention is to provide an insertion device that ensures the best kinematic and dynamic characteristics.
  • a further object of the invention is to provide an insertion device that allows maximum containment of inertias.
  • a further object is to provide an insertion device in which the stroke of the mechanism is limited to the strictly necessary extent.
  • a further object is to provide an insertion device in which the rule of motion can be optimized easily, particularly as regards the ramps and pauses in the two directions of operation.
  • a further object is to provide an insertion device that facilitates the correct insertion of the part and is able to detect anomalies of insertion, such as for example initial slippage and the insertion of a plurality of blanks in the same rolling step.
  • Another object is to provide a device that also constitutes an efficient part counter, this being always a very critical function in these kinds of machine.
  • Another object is to provide a device that reduces the wear of the movable chaser in the insertion region, adjusting the contact pressure precisely.
  • an insertion device particularly for automatic rolling machines, comprising a reciprocating member that is provided with a means adapted to pick up a part to be machined from a guide and to insert it in a working position, characterized in that the reciprocating member is actuated by a linear motor.
  • the insertion device according to the invention can be applied to an automatic rolling machine 1, which is essentially constituted by a fixed plate 2 and a movable plate 3, which has a reciprocating motion.
  • the device can also be applied to automatic rolling machines of the roller and sector type.
  • a blank 4, arriving from a feeder guide 5, is placed by the insertion device 101 between the two plates 2 and 3, which roll it under pressure.
  • the plates have protrusions that are inclined at an angle that corresponds to the pitch of the thread, thus constituting a female thread spread flat, and by pressing the material they force it to assume the shape of the thread.
  • the insertion device 101 is constituted by a base 6, which is rigidly coupled to the frame of the machine 1 and supports a reciprocating member 8 that is actuated by a linear motor 9.
  • the reciprocating member 8 has a transverse guide 10, to which an insertion punch or pusher 11 is applied; its position on the transverse guide can be adjusted and is fixed for example by means of a screw system.
  • the linear motor is controlled electronically and the system therefore allows completely automatic adjustment.
  • the insertion device according to the present invention is driven by an electronic servosystem with a linear motor and the corresponding drive, differently from the systems of the prior art that have a conventional kinematic chain constituted by cams, belts, spherical joints, levers et cetera, provides several important advantages.
  • the device according to the present invention allows maximum containment of inertias and ensures the best kinematic and dynamic characteristics, limiting the stroke of the mechanism to the strictly necessary extent and at the same time facilitating the correct insertion of the part.
  • the device also allows to optimize the rule of motion, i.e., the ramps and pauses in the two directions of operation, and minimizes the wear of the movable chaser in the insertion region, adjusting precisely the contact pressure.
  • an insertion device for automatic rolling machines having been provided which is functionally and constructively superior to the devices used so far for the insertion of the parts to be machined.
  • the insertion device according to the invention is particularly advantageous in a machine that has a modular structure, so as to facilitate its optimum execution on machine tools of any size, at the same time ensuring an excellent level of quality.
  • Another important advantage of the device according to the present invention is that it facilitates and simplifies the operations for fine-tuning and adjusting the machine.
  • Another advantage of the device is that it allows to control initial slippage and avoid the insertion of a plurality of blanks in the same rolling step.
  • Another advantage of the device is that it also constitutes an efficient part counter.
  • the structure of the device according to the invention also contributes to strength and precision in construction, which together with an appropriate choice of materials ensure complete stability of the operating conditions.
  • the materials used, as well as the dimensions, may of course be any according to requirements and to the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Transmission Devices (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Control Of Metal Rolling (AREA)

Claims (3)

  1. Laminoir automatique comprenant un dispositif d'insenion (101) qui comprend un élément alternatif (8) qui est pourvu de moyens adaptés pour saisir une pièce (4) à usiner depuis un guide (5) et pour l'insérer dans une position de travail, caractérisé en ce que l'élément alternatif est actionné par un moteur linéaire (9).
  2. Laminoir automatique selon la revendication 1, caractérisé en ce que ledit moteur linéaire (9) est entraíné électroniquement.
  3. Laminoir automatique selon la revendication 1 ou 2, caractérisé en ce que ledit élément alternatif (8) et ledit moteur linéaire (9) sont supportés par une base (6) qui est rigidement accouplée au châssis du laminoir (1).
EP03755129A 2002-05-28 2003-05-26 Enrouleur automatique comprenant un dispositif d'insertion Revoked EP1509348B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2002MI001146A ITMI20021146A1 (it) 2002-05-28 2002-05-28 Dispositivo di introduzione particolarmente per macchine rullatrici automatiche
ITMI20021146 2002-05-28
PCT/EP2003/005459 WO2003099489A1 (fr) 2002-05-28 2003-05-26 Dispositif d'insertion, notamment pour enrouleurs automatiques

Publications (2)

Publication Number Publication Date
EP1509348A1 EP1509348A1 (fr) 2005-03-02
EP1509348B1 true EP1509348B1 (fr) 2005-10-12

Family

ID=11449986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03755129A Revoked EP1509348B1 (fr) 2002-05-28 2003-05-26 Enrouleur automatique comprenant un dispositif d'insertion

Country Status (9)

Country Link
US (1) US20060054631A1 (fr)
EP (1) EP1509348B1 (fr)
CN (1) CN1301163C (fr)
AT (1) ATE306339T1 (fr)
AU (1) AU2003242571A1 (fr)
DE (1) DE60301882T2 (fr)
ES (1) ES2246483T3 (fr)
IT (1) ITMI20021146A1 (fr)
WO (1) WO2003099489A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2095892A1 (fr) 2008-02-27 2009-09-02 E. W. Menn Gmbh & Co. Kg Machine à laminer des profilés

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20021573A1 (it) * 2002-07-17 2004-01-19 Smart Srl Metodo per l'introduzione di sbozzati da filettare in macchine rullatrici rotative automatiche e macchina funzionante con tale metodo
ITMI20060800A1 (it) * 2006-04-21 2007-10-22 Smart Srl Macchina rullatrice automatica a pettini piani
IT1400572B1 (it) * 2009-10-15 2013-06-14 Ingramatic Spa Macchina filettatrice a pettini piani.
IT1399346B1 (it) * 2010-04-12 2013-04-16 Smart Srl Dispositivo di introduzione per macchine rullatrici.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123251A (en) * 1964-03-03 Apparatus for feeding shank buttons to an attaching station
GB882125A (en) * 1958-03-14 1961-11-15 Malmedie & Co Maschf Improvements in or relating to thread rolling machines
DE1935451C2 (de) * 1969-07-12 1982-12-30 E.W. Menn KG, Maschinenfabrik, 5912 Hilchenbach Vorrichtung zum Vereinzeln und Einführen von bolzenförmigen Rohlingen an einer Bearbeitungsmaschine
US4684309A (en) * 1983-08-29 1987-08-04 Vulcan Tool Company System and apparatus for use in fabricating small tubular articles
US5121329A (en) * 1989-10-30 1992-06-09 Stratasys, Inc. Apparatus and method for creating three-dimensional objects
DE4014671C1 (fr) * 1990-05-08 1991-08-29 E.W. Menn Gmbh & Co Maschinenfabrik, 5912 Hilchenbach, De
IT1242989B (it) * 1990-08-29 1994-05-23 Vamatex Spa Dispositivo perfezionato per la formazione della cimossa in telai senza navette
US6346107B1 (en) * 1990-12-14 2002-02-12 Robert L. Cucin Power-assisted liposuction instrument with cauterizing cannual assembly
IT1250082B (it) * 1991-07-10 1995-03-30 Siv Soc Italiana Vetro Apparecchiatura e procedimento per la fabbricazione di vetri a forma complessa atti ad essere usati su veicoli
JPH10305337A (ja) * 1997-05-06 1998-11-17 Yamada Dobby Co Ltd プレス機の送り装置
DE19831060A1 (de) * 1998-07-13 2000-01-20 Hilti Ag Setzgerät mit Nagelmagazin
DE19858189A1 (de) * 1998-08-24 2000-06-21 Ophardt Product Gmbh & Co Kg Mischbehälter
JP2001025834A (ja) * 1999-07-15 2001-01-30 Exedy Corp プレス装置にワークを送るワーク搬送装置
JP3341762B2 (ja) * 2000-11-22 2002-11-05 松下電器産業株式会社 ダイボンディング装置およびダイボンディング方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2095892A1 (fr) 2008-02-27 2009-09-02 E. W. Menn Gmbh & Co. Kg Machine à laminer des profilés

Also Published As

Publication number Publication date
ITMI20021146A0 (it) 2002-05-28
AU2003242571A1 (en) 2003-12-12
CN1655892A (zh) 2005-08-17
DE60301882D1 (de) 2005-11-17
ES2246483T3 (es) 2006-02-16
US20060054631A1 (en) 2006-03-16
EP1509348A1 (fr) 2005-03-02
ATE306339T1 (de) 2005-10-15
CN1301163C (zh) 2007-02-21
WO2003099489A1 (fr) 2003-12-04
DE60301882T2 (de) 2006-05-24
ITMI20021146A1 (it) 2003-11-28

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