WO2002064281A1 - Convoyeur a pinces pour bande metallique - Google Patents

Convoyeur a pinces pour bande metallique Download PDF

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Publication number
WO2002064281A1
WO2002064281A1 PCT/EP2001/011866 EP0111866W WO02064281A1 WO 2002064281 A1 WO2002064281 A1 WO 2002064281A1 EP 0111866 W EP0111866 W EP 0111866W WO 02064281 A1 WO02064281 A1 WO 02064281A1
Authority
WO
WIPO (PCT)
Prior art keywords
gripper
feeder
strip
grippers
metal strip
Prior art date
Application number
PCT/EP2001/011866
Other languages
English (en)
Inventor
Sergio Dallan
Original Assignee
Dalcos S.R.L.
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 Dalcos S.R.L. filed Critical Dalcos S.R.L.
Priority to EP01273715A priority Critical patent/EP1360020A1/fr
Publication of WO2002064281A1 publication Critical patent/WO2002064281A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/048—Multiple gripper units
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips

Definitions

  • This invention relates to a gripper feeder for metal strip.
  • Metal strip feeders are known for those presses and machines in which the strip is subjected to particular predetermined operations.
  • a known type of feeder comprises a pair of grippers for engaging the metal strip to be advanced, members for moving the grippers in a direction parallel to the axis of said strip and in the opposite direction, and means for independently operating said grippers such that while the gripper which moves in the direction of advancement of the strip is activated, that which moves in the opposite direction is deactivated.
  • the mover members consist of a bar presenting two portions threaded in opposite directions which engage a threaded bush provided on a gripper of each pair, a motor being provided, powered alternately in the two directions of rotation.
  • These known feeders have however the drawback of advancing the strip intermittently. This intermittent advancement is due on the one hand to the advancement pitch of the grippers and on the other hand to the operation pitch. In this respect, on the basis of an advancement pitch of 1 m and an operation pitch of 2.5 m, the advancement of the strip has to be halted every metre to allow "gripper changeover" and enable the strip to be halted every 2.5 m as required by the operating cycle.
  • Figure 1 is a side view of a first embodiment of a gripper feeder according to the invention
  • Figure 2 is a cross-section therethrough on the line ll-ll of figure 1
  • Figure 3 is a plan view thereof
  • Figure 4 is a plan view of a second embodiment
  • Figure 5 is a side view thereof.
  • the gripper feeder for metal strip comprises, in the embodiment shown in Figures 1 to 3, a base 2 on which two linear motors 4, 4' are mounted.
  • Each linear motor 4, 4' comprises a stator 6, 6' and a carriage 8, 8' supporting a gripper 10, 10'.
  • a single stator could also be used, on which the two carriages slide independently.
  • Each gripper 10, 10' comprises a fixed jaw 12, 12' rigid with the carriage 8, 8", and a movable jaw 14, 14' moved relative to the corresponding fixed jaw 12, 12' by a pneumatic actuator 16, 16' of vertical axis.
  • transverse guides 16 On the base there are also mounted transverse guides 16, along which carriages 20 slide supporting rollers 22 of vertical axis having in their lateral surface a groove for engaging and guiding the longitudinal edge of the metal strip to be advanced.
  • the carriages 20 are moved along the respective guides by operating handwheels 26.
  • the invention also comprises a control centre for controlling the various constituent elements of the feeder, such as the pneumatic jaw actuator, the linear motors etc.
  • the operation of the feeder in this embodiment is as follows: the machine is firstly adjusted to adapt it to the width of strip to be fed; this adjustment involves operating the actuators which control the distance between the grippers, and then the actuators which control the distance between the rollers 22. Having undergone this preliminary adjustment, the feeder is ready to operate, assuming that the initial configuration is that in which the carriages 8, 8' are as close together as possible, with the carriage 8 moving in the strip advancement direction, the jaws 12 and 14 closed to grip the strip, the carriage 8' moving in the opposite direction to the strip advancement direction, and the jaws 12', 14' open (see Figure 3). Following activation of the stator 6 the carriage 8 moves in the direction indicated by the arrow 27 in figure 3 with the carriage 8' moving at the same time in the direction indicated by the arrow 28 in the same figure, following activation of the stator 6".
  • the two carriages can be advanced not only with different speeds but also with variable speed, so that while the carriage 8 always moves at constant speed towards its front end-of- travel position, the other carriage 8' moves at greater speed than the carriage 8 to reach its rear end-of travel position, then reverses its direction and attains the same advancement speed as the other carriage 8, then before this reaches its front end-of-travel position, i.e. before the jaws 12, 14 loosen their grip, it intervenes with its jaws 12', 14' to grip the metal strip and continue to advance it in a virtually continuous manner.
  • the carriage 8' operates in a like manner, in that after reaching its front end-of-travel position, it reverses its travel direction, attains the speed of the other carriage 8 and arranges its jaws to grip the metal strip.
  • two pairs of linear motors positioned side by side on each section are provided.
  • This embodiment of so-called “electric tree” type, is particularly advantageous for very wide strip.
  • the feeder comprises two electric motors 30, 30', the shafts of which are rigidly connected to two threaded rods 32, 32' engaging threaded bushes 34, 34' provided on carriages 36, 36' supporting the grippers 38, 38'.
  • the carriages are rigid with two slides 40, 40' slidable along longitudinal guide rails 42, 42'.
  • the operation of the feeder of this embodiment is substantially similar to the preceding in that with the electric motors separately powered, one pair of grippers can be driven in one direction and the other pair of grippers in the other direction, as in the aforedescribed case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

La présente invention concerne un convoyeur à pinces pour bande métallique comprenant sur une semelle : au moins deux pinces (10, 10') permettant de prendre une bande métallique (29) devant être avancée, des éléments permettant de déplacer lesdites pinces parallèlement à l'axe de ladite bande, des moyens permettant de faire fonctionner indépendamment lesdites pinces, un centre de commande permettant de commander lesdits éléments de déplacement à pinces, caractérisé en ce que lesdits éléments de déplacement à pinces sont constitués d'au moins deux moteurs (4, 4'; 30, 30'), dont le fonctionnement est commandé de telle sorte que lorsque la pince qui retient la bande se déplace dans une direction, l'autre pince est désactivée et se déplace initialement plus rapidement dans la direction opposée, inverse ensuite sa direction de déplacement et atteint la vitesse de la première pince, ladite première pince desserrant sa griffe de serrage lorsque la seconde pince intervient pour serrer la bande.
PCT/EP2001/011866 2001-02-13 2001-10-15 Convoyeur a pinces pour bande metallique WO2002064281A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01273715A EP1360020A1 (fr) 2001-02-13 2001-10-15 Convoyeur a pinces pour bande metallique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE20010011 ITVE20010011A1 (it) 2001-02-13 2001-02-13 Alimentatore a pinza per nastri di lamiera
ITVE2001A000011 2001-02-13

Publications (1)

Publication Number Publication Date
WO2002064281A1 true WO2002064281A1 (fr) 2002-08-22

Family

ID=11461050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/011866 WO2002064281A1 (fr) 2001-02-13 2001-10-15 Convoyeur a pinces pour bande metallique

Country Status (3)

Country Link
EP (1) EP1360020A1 (fr)
IT (1) ITVE20010011A1 (fr)
WO (1) WO2002064281A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749594A1 (fr) * 2005-08-04 2007-02-07 Unimet GmbH Dispositif d'alimentation pour des machines à poinçonner ou à cintrer
JP2015147630A (ja) * 2014-02-05 2015-08-20 双葉電子工業株式会社 フィルム搬送装置
CN114433670A (zh) * 2022-01-26 2022-05-06 江苏红人实业股份有限公司 一种展示架板件折弯加工的自动送料装置
CN114515790A (zh) * 2022-02-23 2022-05-20 无锡工艺职业技术学院 一种电子元器件接线端子成型加工装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2147569A5 (fr) * 1971-07-24 1973-03-09 Weingarten Ag Maschf
EP0282264A2 (fr) * 1987-03-09 1988-09-14 Babcock-Hitachi Kabushiki Kaisha Dispositif de fabrication continue de catalyseurs en forme de plaques
JPH09182925A (ja) * 1995-12-28 1997-07-15 Amada Co Ltd 板材の移動位置決め装置
DE19703878A1 (de) * 1996-05-06 1997-11-13 Bueltmann Monika Ziehanlage für Langgut
US5909835A (en) * 1993-12-30 1999-06-08 Dalcos S.R.L. Gripper feeder for metal strip
EP0938939A2 (fr) * 1998-01-30 1999-09-01 Dallan S.R.L. Dispositif d'alimentation d'une bande amélioré
US6092709A (en) * 1998-04-06 2000-07-25 Red Bud Industries, Inc. Machine for advancing a sheet metal strip in measured increments

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2147569A5 (fr) * 1971-07-24 1973-03-09 Weingarten Ag Maschf
EP0282264A2 (fr) * 1987-03-09 1988-09-14 Babcock-Hitachi Kabushiki Kaisha Dispositif de fabrication continue de catalyseurs en forme de plaques
US5909835A (en) * 1993-12-30 1999-06-08 Dalcos S.R.L. Gripper feeder for metal strip
JPH09182925A (ja) * 1995-12-28 1997-07-15 Amada Co Ltd 板材の移動位置決め装置
DE19703878A1 (de) * 1996-05-06 1997-11-13 Bueltmann Monika Ziehanlage für Langgut
EP0938939A2 (fr) * 1998-01-30 1999-09-01 Dallan S.R.L. Dispositif d'alimentation d'une bande amélioré
US6092709A (en) * 1998-04-06 2000-07-25 Red Bud Industries, Inc. Machine for advancing a sheet metal strip in measured increments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 11 28 November 1997 (1997-11-28) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1749594A1 (fr) * 2005-08-04 2007-02-07 Unimet GmbH Dispositif d'alimentation pour des machines à poinçonner ou à cintrer
JP2015147630A (ja) * 2014-02-05 2015-08-20 双葉電子工業株式会社 フィルム搬送装置
CN114433670A (zh) * 2022-01-26 2022-05-06 江苏红人实业股份有限公司 一种展示架板件折弯加工的自动送料装置
CN114433670B (zh) * 2022-01-26 2023-09-15 江苏红人实业股份有限公司 一种展示架板件折弯加工的自动送料装置
CN114515790A (zh) * 2022-02-23 2022-05-20 无锡工艺职业技术学院 一种电子元器件接线端子成型加工装置

Also Published As

Publication number Publication date
ITVE20010011A1 (it) 2002-08-13
EP1360020A1 (fr) 2003-11-12

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