EP1657008A1 - Dispositif pour l'alimentation d'un matériau en bande vers une presse - Google Patents

Dispositif pour l'alimentation d'un matériau en bande vers une presse Download PDF

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Publication number
EP1657008A1
EP1657008A1 EP04026367A EP04026367A EP1657008A1 EP 1657008 A1 EP1657008 A1 EP 1657008A1 EP 04026367 A EP04026367 A EP 04026367A EP 04026367 A EP04026367 A EP 04026367A EP 1657008 A1 EP1657008 A1 EP 1657008A1
Authority
EP
European Patent Office
Prior art keywords
feed
lift
strip
positioning member
positioning
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
EP04026367A
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German (de)
English (en)
Other versions
EP1657008B1 (fr
Inventor
Oskar Eigenmann
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.)
Bruderer AG
Original Assignee
Bruderer AG
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
Priority to AT04026367T priority Critical patent/ATE396806T1/de
Application filed by Bruderer AG filed Critical Bruderer AG
Priority to DE502004007293T priority patent/DE502004007293D1/de
Priority to ES04026367T priority patent/ES2305645T3/es
Priority to EP04026367A priority patent/EP1657008B1/fr
Priority to US11/252,233 priority patent/US7374073B2/en
Priority to JP2005316236A priority patent/JP5246998B2/ja
Priority to SG200508503A priority patent/SG122059A1/en
Publication of EP1657008A1 publication Critical patent/EP1657008A1/fr
Application granted granted Critical
Publication of EP1657008B1 publication Critical patent/EP1657008B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material

Definitions

  • the present invention relates to a device for preferably intermittently feeding a ribbon-like semi-finished material to a press and a method for adjusting the strip thickness of a feed device for advancing a strip-like material according to the preambles of the independent claims.
  • the feeder is always set exactly to the thickness of the strip material to ensure that the feed operation, the required clamping force between the feed rollers is achieved and at the same time correspond to the beginning and the duration of the intermediate ventilation process requirements.
  • the feeding device is newly adjusted to the thickness when introducing a new material strip by the upper feed roller is lifted with a spindle drive or a hydraulic cylinder from the strip material (high ventilation), the new strip material is placed between the feed rollers and then the upper feed roller is placed back on the strip material by means of actuation of the spindle drive or the hydraulic cylinder.
  • the return movement must be adjusted by an experienced operator, so that the upper feed roller assumes a certain position with respect to the strip-shaped material. Only in this way can it be ensured that the remaining settings relating to the clamping force and the time window for the intermediate ventilation remain unchanged during the processing of material strips of different thicknesses.
  • the object of the present invention is therefore to provide a device for feeding a strip-like material to a press and a method for adjusting the strip thickness of a feed device for advancing a strip-like material, which do not have the disadvantages of the prior art or at least partially avoided.
  • a first aspect of the invention relates to a device for preferably intermittently advancing a ribbon-like semi-finished material to an intermittently operating press.
  • the device comprises two oppositely arranged feed members, between which a belt-like material to be advanced can be clamped in the feed mode and then pushed forcibly with it.
  • feed members for example, feed rollers, roller segments or also pincer-like structures are used.
  • the feed device comprises high-lift means associated with these claims according to the first Anriebsstoffn, which may be formed for example by a hand crank, an electric motor or a hydraulic or pneumatic cylinder.
  • the high-lift means are operatively connected to the two feed members, that for high ventilation in non-feed operation of the two feed members from a position closer to the other feed member, which may correspond, for example, the position in which in a previously performed feed operation, a band-like material between the feed members was clamped, in a position remote from this (high-lift position) is movable, in which the distance between the two feed members is large enough to easily position a new ribbon-like material between the feed members.
  • the device comprises Banddickeneinstellstoff with a positioning member.
  • the positioning is with the feed member which is movable with the high-lift means, operatively connected such that it makes a reciprocating motion between a first and a second position when reciprocating this feed member between the high-lift position and the other feed member closer position , which is preferably achieved in that the positioning member and the feed member are positively coupled with each other in both directions of movement.
  • the Banddickeneinstellstoff comprise non-positive and / or positive locking means with which the positioning can be locked in a desired position between the first and the second position, for fixing the operatively connected thereto feed member in a desired band thickness position.
  • the high-lift means are configured or coupled to the movable with this feed member that with the first drive means only in the direction of movement to the high-lift position a force can be exerted on this feed element, but not in the opposite direction.
  • the high-lift means are therefore only suitable for effecting the movement of the feed member movable with them from the position closer to the other feed member to the high-lift position by means of their first drive means and then optionally holding the feed member operatively connected thereto in the high-lift position.
  • the first drive means a one-sided hydraulic or pneumatic cylinder which can be driven only in the direction of the high-lift position, or by, for example, driving a spindle driven by an electric motor as the first drive means, which actuates a spindle nut only in the direction of movement towards the high-lift position positively coupled with the feed member and runs in the other direction of movement into the void.
  • the return forces are generated exclusively by weight and / or spring forces, which can be provided in a cost effective and precise way restoring and pressing forces of substantially constant size.
  • the positioning member simultaneously forms a part of the high-lift means, whereby there is the advantage that the device can be formed from relatively few individual parts.
  • the positioning member of the device guided along a guide and locked within this guide by traction with clamping surfaces, so it can be locked securely and stepless and there is the advantage that a particularly precise band thickness adjustment is possible.
  • the device performs the positioning member in its movement between the position in which the with this motion-connected feed member together with the other feed member, the band-like material clamps, and the high-lift position a translational movement or movement along a curved path, which facilitates the provision of suitable locking means.
  • the apparatus is configured for intermittently feeding a band-shaped semi-finished material to a press.
  • the device has intermediate ventilation means, which are driven by claim according to the second drive means and coupled to one of the two feed members, such that this feed member each between two successive feed intervals from the other feed member closer clamping position in a the other feed member remotely located intermediate release position is raised so that the clamping of the belt-like material is temporarily canceled.
  • Such a device allows fine positioning of the belt-like material by the press before each working cycle, e.g. by arranged on the tool of the press catching pins which engage in positioning holes on the belt-like material, since this is temporarily released by the feed device.
  • the locking of the positioning can be done at a time in which the intermediate air means are arranged in an operating position, which corresponds to the beginning of the intermediate ventilation during the feed operation. This makes it possible to automatically set the beginning of the intermediate ventilation when setting the strip thickness and to ensure that this is always the same regardless of the strip thickness.
  • feed member which is coupled to the high-lift means, at the same time also the feed member, which is coupled to the intermediate release means.
  • the breather and the intermediate air thus act on a common feed member, so that there is the advantage that the other feed member can be performed immovable at least in the clamping force direction.
  • the feed members of the feed device according to the invention are designed as feed rollers or as feed roller segments, so that the feed movement can be effected by a rotation thereof. But it is also conceivable to form these pliers and to effect the advancing movement by a parallel translational movement of the same.
  • the drive roller or the drive roller segment which is coupled to the intermediate air means is mounted in a rocker which is pivotally mounted in a pivot bearing in the region of one of its two ends and in the region of its other end is coupled to the drive means of the intermediate air means (according to the claim the second drive means), so that it is pivotable with these drive means around the pivot bearing around between a clamping position and a Eisenlpropposition back and forth.
  • a stable and precise storage of the feed roller or of the feed roller segment can be realized, and it is also possible to override or reduce movement forces and movement paths in a simple manner.
  • the pivot bearing of the rocker is coupled to the high-lift means, in such a way that the position of the pivot bearing is variable within the device by means of the first drive means, namely towards a position corresponding to the high-lift position.
  • pivot bearing formed by the positioning of the feed device is, with which the position of the feed member is fixed in a band thickness position, because in this way a robust locking as close to the affected feed member without concatenation of additional games is possible.
  • the intermediate air means and the high-lift means share at least one component, preferably a bearing of a lever mechanism whose position within the device by means of the first drive means is changeable. It is preferred if the common component is formed simultaneously by the positioning of the device. It is also preferred if in such devices, the pivot bearing of the rocker has a fixed position within the device. This makes it possible to realize particularly compact devices with little moving parts, which can also increase the precision and reduce manufacturing costs.
  • the first drive means consist of a preferably unilaterally acting hydraulic or pneumatic cylinder, which can provide a drive for the high-lift means in a very simple way, which can generate driving forces in one direction only despite positive coupling and depressurization is easily neutralized.
  • the locking means a preferably unilaterally acting hydraulic or pneumatic cylinder for actuating the locking, wherein it is preferred if the locking takes place by clamping under a pressure force generated by this cylinder. This makes it possible to realize a reliable and infinitely acting locking of the positioning in a simple manner.
  • the first drive means, the positioning member and the locking means are formed as a coherent unit, this results in a compact and robust functional unit, which can be used modularly for different feed devices.
  • the device according to the invention has control means with which an automatic belt thickness adjustment can be carried out by automatically bringing the feed element coupled to the high-lift means into a belt thickness position by means of the return forces from the high-lift position, in which it is between the two Arranged advancing members and adjacent to the other feed member and / or a guide table belt-like material rests. In this band thickness position, the positioning member is then automatically locked with the locking means. This makes it possible to perform the belt thickness adjustment fully automatically and so save time and money.
  • the device described above has means for intermediate ventilation, it is advantageous if, before the positioning device is locked, the intermediate air means are automatically brought into a specific state, preferably in a state which corresponds to the desired start of the intermediate ventilation during the subsequent feed operation. This automatically ensures that the same interleaving time window always exists in feed mode, even if the strip thickness varies from strip to strip.
  • a second aspect of the invention relates to a method for adjusting the strip thickness of a feed device for preferably intermittently feeding a strip-like material, which is preferably formed according to the first aspect of the invention.
  • the device to be adjusted by the method according to the invention has two opposite feed members, by means of which the strip-like material to be advanced is advanced under clamping in the feed operation.
  • one of the feed members can be moved with high-lift means with first drive means in the direction away from the other feed member to a high-lift position.
  • a first method step the one feed member, which is movable with the high-lift means, brought under activation of the first drive means in a high-lift position.
  • a band-like material is then introduced into the area between the two feed members.
  • the effect of the lifting means is then lifted, with simultaneous exclusion of transmission of driving forces from the first drive means to the advancing member in a direction of high-lift movement opposite movement, which can be accomplished, for example, as described in the first aspect of the invention.
  • a fourth method step the advancing member, which is movable with the lifting means, is moved from the high-lift position in a direction opposite the high-lift direction to a strip thickness position by restoring forces independent of the drive forces of the first drive means, in which it is arranged on the other feed member or on the other feed member ., rests on a feed table resting band-like material, whereby a motion associated with this feed member Positioning is positioned in a specific position; in a fifth method step, the feed member is then detected in this band thickness position by the movement associated with him positioning member is locked in this particular position with locking means.
  • the advantage that the return movement and the placement of the coupled with the high-lift means feed member on the belt-like material is independent of the driving force of the drive means used for the high-lift controllable. It is thus possible, for the high-lift movement, which requires relatively large forces with low precision, and for the return or Aufsetzzi, for which low but constant forces are required to use different drive means.
  • the drive means can be optimally designed for their respective function, so that self-adjusting feed devices can be realized with simple, robust means and without elaborate control technology.
  • springs and / or weights are preferably used as drive means for the return or placement movement, since these require no additional control and can reliably provide essentially constant forces of the required order of magnitude.
  • the positioning member is guided translationally or in an arc along a guide and locked within this guide by clamping, which is preferred, a particularly stable and moreover stepless locking is possible.
  • the intermediate ventilation means are brought before the locking of the positioning in a certain state, which preferably corresponds to the state which they have in the feed operation at the beginning of the intermediate ventilation. This ensures that the time window for the intermediate ventilation is always the same regardless of the strip thickness.
  • At least the third, the fourth and the fifth method step are carried out with the aid of preferably electronic control, whereby the integration of the apparatus in an automated production line becomes possible.
  • FIGS. 1a and 1b The basic structure of a feed device 1 according to the invention for the intermittent feeding of a strip-like material 2 to a stamping press (not shown) can be seen in FIGS. 1a and 1b.
  • the device 1 comprises two parallel feed rollers 3, 4 arranged one above the other, which can be intermittently rotated by an electric motor (not shown) for intermittently advancing a strip-like material 2 clamped between them.
  • the lower roller 4 is mounted in a stationary feed table 16, while the upper roller 3 is mounted in a rocker 12 which is pivotally mounted in the region of its left end in a rotary bearing 13.
  • the pivot bearing 13, in which the left end of the rocker 12 is mounted, is formed by the lower end of a vertically movable carriage 9, which in Machine housing is guided along vertical guides 11 and there by means of a terminal block 6, which is acted upon by the piston 15 of a hydraulic cylinder 28 with a compressive force, can be clamped in a desired position in the guide 11.
  • the hydraulic cylinder 28 with piston 15, the terminal block 6 and the guide 11 in the present case form the required locking means 10.
  • the movable carriage 9, which represents the claims according to the positioning 9, is designed as an extension of the piston rod of another, one-sided hydraulic cylinder 29 with a piston 8, which can only produce a vertically upward force, but not a vertically directed downward. Accordingly, it is possible with deactivated locking means 10, the carriage 9 and with this the pivot bearing 13 by means of Nachoben vide of the piston 8 in the hydraulic cylinder 29 to lift until it abuts the cylinder cover and a maximum stroke position is reached. At the same time, the left end of the rocker 12 is raised and raised the upper feed roller 3 of the belt-like material 2 in a high-lift position, in which the gap between the feed rollers 3, 4 is maximum.
  • lifting is referred to as "lifting” and is usually performed when a new belt-like material is to be introduced into the area between the two feed rollers 3,4.
  • the hydraulic cylinder 29 with the piston 8, the carriage 9 and the rocker 12 form in the present case the claim according to the high-lift 7th
  • the unilaterally acting hydraulic cylinder 29 of the high-lift means 7 is activated by its piston 8 is acted upon on the bottom with pressure oil, whereupon this upward until it moves against the cylinder cover and lifts the upper feed roller 3 via the carriage 9 and the rocker 12 in the high-lift position, in which the strip-like material 2 between the two feed rollers 3, 4 can be introduced.
  • This situation is shown in Fig. 1d.
  • the hydraulic cylinder 29 is then connected to the piston 8 again druckloss, whereby its effect is canceled or neutralized. Consequently, the piston 8 of the hydraulic cylinder 29 lowers together with the carriage 9 and the rocker 12 around the arranged at its right end bolt 18 around until the upper feed roller 3 rests on the belt-like material 2 and this under pressure force applied through the Spring 17 presses against the lower feed roller 4, so that the belt-like material 2 is clamped between the two feed rollers 3, 4.
  • the return movement from the high-lift position in this clamping position exclusively by the weight forces of the moving parts 8, 9, 12, 3 and by the spring force of the spring 17th causes.
  • the locking means 10 are activated by the piston 15 of the hydraulic cylinder 28 is acted upon on its left side with pressure oil, causing it exerts a compressive force on the terminal block 6 and the carriage 9 clamped in the guide 11.
  • the device is now set to the thickness of the belt-like material 2 and can receive its feed operation, which is shown in Figures 1f and 1g.
  • Fig. 1f takes place after a start of the servo motor of the intermediate air means 5, an intermediate ventilation of the rollers 3, 4, by the upper roller 3 by lifting the rocker 12 at its right end by means of the connecting rod 19 temporarily from the belt-like material is lifted, so that the clamping of the same is temporarily canceled.
  • FIGS. 1f to 1g are repeated until the material strip 2 has been used up and a new one has to be provided. If the feed device 1 is to be set to the thickness of the new strip-type material 2, the steps described on the basis of FIGS. 1c to 1e are to be carried out before the feed mode is taken up again.
  • the hydraulic drive 29 for the high-lift means 7, the slide 9 and the locking means 10 are formed as a coherent unit.
  • This unit is also used in the advancing device 1 according to Figures 2a and 2b, together with the arrangement used in the previous embodiment of stationary feed table 16 with lower feed roller 4 and the end mounted in a hinge 13 rocker 12 with the upper feed roller 3 and
  • the essential difference from the first embodiment is, however, that the pivot 13, in which the left end of the rocker 12 is mounted, fixedly disposed in the machine housing is and that both the high-lift means 7 and the intermediate air means 5 via a common lever mechanism, which consists of a double-sided lever 21 and a pull tab 22, at the right end of the rocker 12 are effective.
  • the connecting rod 19 of the intermediate ventilation means 5 engages the left end of the double-sided lever 21 and the carriage 9 of the high-lift means 7 at the pivot point of the lever 21 by providing its pivot 23 vertically displaceable.
  • the hinge 23 of the lever 21, on the underside of which acts on the rocker 12 coil spring 17 is supported, in this way forms a common hinge for both the high-lift means 7 and for the intermediate air means 5, the position of which in the machine housing with the piston 8 of Change hydraulic cylinder 29 of the high-lift means 7 and lock with the locking means 10.
  • the locking means 10 are activated by the piston 15 of the hydraulic cylinder 28 is acted upon on its left side with pressure oil, causing it exerts a compressive force on the terminal block 6 and the carriage 9 clamped in the guide 11.
  • the band thickness adjustment described above is preferably carried out in an operating state in which the eccentric shaft 20 and the connecting rod 19 occupy a specific position, for example, that they should take in the feed operation at the beginning of the intermediate ventilation.
  • the feed device according to the invention shown in FIGS. 3a and 3b has a similar construction to that shown in FIGS. 2a and 2b.
  • the pull tab 22 is replaced by a combination of another double-sided lever 24 and two tabs 25 and 26 and the carriage 9 hinged at the right end of the cooperating with the connecting rod 19 double-sided lever 21.
  • the piston 8 of the hydraulic cylinder 29 for the purpose of raising the upper feed roller 3 in the high-lift position on its upper side to be acted upon with pressure oil, on which it also has an auxiliary spring 27.
  • the claimed positioning device 9 designed as a slide 9 is designed as part of the high-lift means 7, it is still conceivable to design it as a separately engaging component, e.g. as a separate, lockable slide.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Press Drives And Press Lines (AREA)
  • Tyre Moulding (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP04026367A 2004-11-05 2004-11-05 Dispositif pour l'alimentation d'un matériau en bande vers une presse et méthode de réglage de l'épaisseur du matériau en bande d' un dispositif d'alimentation Active EP1657008B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE502004007293T DE502004007293D1 (de) 2004-11-05 2004-11-05 Vorrichtung zum Zuführen eines bandförmigen Halbzeugmaterials zu einer Presse und Verfahren zum Einstellen der Banddicke einer Vorschubvorrichtung
ES04026367T ES2305645T3 (es) 2004-11-05 2004-11-05 Dispositivo para la alimentacion de un material semiacabado en forma de cinta a una prensa.
EP04026367A EP1657008B1 (fr) 2004-11-05 2004-11-05 Dispositif pour l'alimentation d'un matériau en bande vers une presse et méthode de réglage de l'épaisseur du matériau en bande d' un dispositif d'alimentation
AT04026367T ATE396806T1 (de) 2004-11-05 2004-11-05 Vorrichtung zum zuführen eines bandförmigen halbzeugmaterials zu einer presse und verfahren zum einstellen der banddicke einer vorschubvorrichtung
US11/252,233 US7374073B2 (en) 2004-11-05 2005-10-17 Apparatus for feeding a band-type material to a press
JP2005316236A JP5246998B2 (ja) 2004-11-05 2005-10-31 プレス機にバンド状半完成材料を供給する装置
SG200508503A SG122059A1 (en) 2004-11-05 2005-11-02 Apparatus for feeding a band-type semi-finished material to a press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04026367A EP1657008B1 (fr) 2004-11-05 2004-11-05 Dispositif pour l'alimentation d'un matériau en bande vers une presse et méthode de réglage de l'épaisseur du matériau en bande d' un dispositif d'alimentation

Publications (2)

Publication Number Publication Date
EP1657008A1 true EP1657008A1 (fr) 2006-05-17
EP1657008B1 EP1657008B1 (fr) 2008-05-28

Family

ID=34927267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04026367A Active EP1657008B1 (fr) 2004-11-05 2004-11-05 Dispositif pour l'alimentation d'un matériau en bande vers une presse et méthode de réglage de l'épaisseur du matériau en bande d' un dispositif d'alimentation

Country Status (7)

Country Link
US (1) US7374073B2 (fr)
EP (1) EP1657008B1 (fr)
JP (1) JP5246998B2 (fr)
AT (1) ATE396806T1 (fr)
DE (1) DE502004007293D1 (fr)
ES (1) ES2305645T3 (fr)
SG (1) SG122059A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4953773B2 (ja) * 2006-11-08 2012-06-13 オリイメック株式会社 板材送り装置の板材リリース機構
EP1941957B1 (fr) * 2007-01-08 2009-09-09 Bruderer Ag Dispositif d'alimentation intermittente d'un demi-produit en forme de bande ou de fil dans une presse
KR100749120B1 (ko) 2007-05-17 2007-08-13 주식회사 상진미크론 파인 블랭킹 프레스용 인피더 장치
CN103538275B (zh) * 2007-11-09 2016-01-20 万科国际股份有限公司 用于冲压机器的驱动设备和方法
US10118785B2 (en) 2015-02-23 2018-11-06 Chs Automation Assembly and process for a press feed mechanism for providing rapid, efficient and tuned hold and release displacement of an upper feed roller relative to a lower roller and between which is communicated a sheet material for subsequent feeding into a press operation
KR101784443B1 (ko) 2016-08-12 2017-10-11 삼도프레스 주식회사 프레스용 피더
CN111872688B (zh) * 2020-06-29 2022-01-07 鞍钢实业金属制品有限公司 一种数控开平剪板一体机
EP4331843A1 (fr) * 2022-08-31 2024-03-06 Zehnder & Sommer AG Cylindre de pression pour un dispositif de transport du matériau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366108A2 (fr) * 1988-10-26 1990-05-02 Bruderer Ag Dispositif pour avancer pas à pas une bande
EP1304181A1 (fr) * 2001-10-18 2003-04-23 Bruderer Ag Dispositif pour l' avancement pas à pas d' une pièce en forme de bande

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CH543932A (de) * 1971-10-01 1973-11-15 Bruderer Ag Vorrichtung zum schrittweisen Vorschieben eines Werkstückes
JPS5842095B2 (ja) 1979-03-09 1983-09-17 株式会社三共製作所 ロ−ルフイ−ド装置
DE3623647A1 (de) 1986-07-12 1988-01-14 Schuler Gmbh L Vorrichtung zum schrittweisen vorschieben von bandmaterial mit zwei gegenlaeufig angetriebenen vorschubwalzen
CH676561A5 (fr) * 1988-10-26 1991-02-15 Bruderer Ag
US5358164A (en) * 1988-10-26 1994-10-25 Bruderer Ag Drive apparatus for a driving of at least one oscillating shaft and an intermittent feeding apparatus including the drive apparatus
CH679134A5 (fr) * 1989-05-03 1991-12-31 Bruderer Ag
US5720421A (en) * 1994-02-28 1998-02-24 Vamco Machine & Tool, Inc. Elecronically controlled high speed press feed
JP2852627B2 (ja) 1995-04-12 1999-02-03 アイダエンジニアリング株式会社 ロールフィードのクランプ・レリース方法
US5992722A (en) * 1996-11-26 1999-11-30 The Minster Machine Company Zero force roll release for high speed press feed units
EP1380366B1 (fr) 2002-07-08 2005-06-01 Bruderer Ag Dispositif d'avancement intermittant pour le transport d' une bande dans une presse et procédé pour commander un tel dispostif
DE50211400D1 (de) * 2002-08-22 2008-01-31 Bruderer Ag Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366108A2 (fr) * 1988-10-26 1990-05-02 Bruderer Ag Dispositif pour avancer pas à pas une bande
EP1304181A1 (fr) * 2001-10-18 2003-04-23 Bruderer Ag Dispositif pour l' avancement pas à pas d' une pièce en forme de bande

Also Published As

Publication number Publication date
ES2305645T3 (es) 2008-11-01
JP5246998B2 (ja) 2013-07-24
US20060097939A1 (en) 2006-05-11
US7374073B2 (en) 2008-05-20
DE502004007293D1 (de) 2008-07-10
EP1657008B1 (fr) 2008-05-28
SG122059A1 (en) 2006-05-26
JP2006130563A (ja) 2006-05-25
ATE396806T1 (de) 2008-06-15

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