EP0253205B1 - Vorrichtung zum schrittweisen Vorschieben von Bandmaterial mit zwei gegenläufig angetriebenen Vorschubwalzen - Google Patents

Vorrichtung zum schrittweisen Vorschieben von Bandmaterial mit zwei gegenläufig angetriebenen Vorschubwalzen Download PDF

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Publication number
EP0253205B1
EP0253205B1 EP87109454A EP87109454A EP0253205B1 EP 0253205 B1 EP0253205 B1 EP 0253205B1 EP 87109454 A EP87109454 A EP 87109454A EP 87109454 A EP87109454 A EP 87109454A EP 0253205 B1 EP0253205 B1 EP 0253205B1
Authority
EP
European Patent Office
Prior art keywords
feed roller
forward feed
strip material
rocker
steering element
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.)
Expired - Lifetime
Application number
EP87109454A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0253205A2 (de
EP0253205A3 (en
Inventor
Alfred Bareis
Klaus Göbel
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.)
L Schuler GmbH
Original Assignee
L Schuler 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 L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP0253205A2 publication Critical patent/EP0253205A2/de
Publication of EP0253205A3 publication Critical patent/EP0253205A3/de
Application granted granted Critical
Publication of EP0253205B1 publication Critical patent/EP0253205B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65H20/02—Advancing webs by friction roller
    • B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
    • 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 invention relates to a device for the step-by-step feeding of strip material with two feed rollers driven in opposite directions, a first feed roller being mounted in a fixed position and a second feed roller by means of a lifting device, alternately at the time the direction of rotation reverses, at least one of the feed rollers against the other feed roller or away from it is movable into a return position, the second feed roller being rotatably mounted in a rocker, at one end of which a link element of the lifting device engages and at the other end, opposite the axis of the second feed roller, a spring force mechanism engages in the effective direction of the pressure of the second feed roller the first feed roller.
  • a device according to this type is known from DE-C-2241686.
  • Devices of this type work in time e.g. a press and serve to feed strip material to the tool in the press. It is necessary to feed the strip material discontinuously in the same strip lengths. Depending on the type of tool, e.g. when using a follow-up cutting tool, it is also necessary to work with intermediate ventilation of the feed rollers and the pressure element at the bottom dead center of the press ram. In addition, the feed device is to be driven with strip materials of different thicknesses.
  • a feed device without freewheels and brakes for the feed rollers to be used has been described, in which the strip material is held in the feed breaks and released during the feed phases.
  • the device looks to be released during the feed phases.
  • the device provides two oppositely driven feed rollers, of which a first feed roller is mounted stationary and a second feed roller is movable by means of a lifting device at the time of reversing the direction of rotation against the other feed roller or away from it in a return position.
  • the second feed roller is rotatably mounted on a rocker. At one end of the rocker the lifting device engages via a link element, at the other end a compression spring which acts in the direction of the pressure of the second feed roller on the first feed roller.
  • a stationary link is connected to the rocker between the second feed roller and the point of application of the compression spring.
  • a pressure element is carried, which is guided in the return position of the second feed roller against a stationary counter-element to hold the strip material.
  • the handlebar element is placed on a cam follower via a cam follower, which is rotated directly by the main drive.
  • the rotary movement of the feed rollers is oscillating forwards and backwards via a connecting rod drive which can be changed with regard to the amplitude of the rotary movement.
  • the rocker is supported on both ends by springs.
  • the springs cause the rocker to pivot into the return position with a corresponding cam follower position, the second feed roller being lifted off the strip material while the pressure element is guided against a stop with the strip material being interposed. If the rocker is pivoted further, it can optionally run against a pivot point, which means that the pressure element can be lifted off for intermediate ventilation.
  • the feed device can be used for different strip material thicknesses.
  • the spring for returning the curve follower on the curve works when the intermediate air device is inserted against the pressure spring for the second feed roller, while both springs act together in one direction of action on the rocker until the rocker hits the pivot point. Belt materials of different thicknesses require manual adjustment of the feed device and they cause different spring forces. A thicker strip material increases the contact pressure of the second feed roller, while the force of the spring acting against this spring in the articulation point of the link element is reduced.
  • a handlebar engages, which is mounted with its other end approximately at the height of the center of the second feed roller in a stationary and rotatable manner that with the handlebar a pressure member is connected, which is pressed in the return position of the second feed roller with the interposition of the strip material against a stationary counter-member to hold the strip material during the return movement of the first feed roller, and that a connecting rod engages the handlebar element at a distance from its point of attack on the seesaw essentially parallel to the rocker and running in the direction of this in a fixed bearing via an eccentric.
  • the feed rollers open and close when the strip material is at a standstill, and that when the thickness of the strip material changes and the adaptation of the lifting device is necessary, the operating conditions of this lifting device constructed in the manner of a four-bar linkage do not change.
  • the tape feed device is independent of the tape thickness.
  • the contact and lifting movements of the second feed roller and the pressing operation on or from the strip material and the contact of the link element with a fixed stop is carried out by the movement of a single actuator.
  • the strip material 1 is advanced in the direction of arrow 20 step by step by a certain, adjustable amount.
  • the feed takes place by means of feed rollers 2 and 3, of which the feed roller 2, as shown, can be designed as a segment and is mounted in a fixed rotary bearing so that it can be swung back and forth via an oscillating shaft 10.
  • the feed roller 3, which can be both a driving, press-driven roller and a roller that is driven by the strip material 1, that is to say can also run, is rotatably mounted on a rocker 6 at 11.
  • the rocker 6 is from a spring energy store such as a pressure cylinder or, as shown, loaded by a compression spring 12 in an end part 8 (arrow 13) for pressing the feed roller 3 against the strip material 1 and for stabilizing the lifting device, which is numbered 4 overall.
  • the rocker 6 is rigidly connected to a link element 9 in the region of its second end part 7 at 26. Between this point of attack 26 of the handlebar element 9 on the rocker 6 and the feed roller 3 there is a common pivot point 14 for a stationary in a bearing 17 at 16 rotatably mounted handlebar 15 and a fixed at 32 longitudinally guided, rotatable pressing member 18.
  • the crowned bottom 29 of the Pressure element 18 is fixed in position opposite an opposing element 19.
  • the belt-side underside 31 in the end part 27 of the link element 9 is at the side opposite to the belt guide of the belt material 1 at least one height-adjustable stop 28, for example a manually or also motor-adjustable eccentric.
  • a connecting rod 22 Spaced from the point of engagement 26 of the handlebar 9 on the rocker 6, a connecting rod 22 is mounted on the handlebar 9 in a pivot bearing 21, which is guided at the other end via an eccentric 24 and an eccentric shaft 25 in a fixed bearing point at 23.
  • an adjusting means 33 for example a pressure cylinder, can engage in the direction of action of the arrow 34.
  • the frame to which the fixed points 10, 17, 23 and 28 refer is generally numbered 5.
  • the eccentric shaft 25 is driven via a bevel gear 43, 44, the vibrating shaft 10 e.g. via a vibratory drive, as described in DE-OS 21 14 432.
  • a vibratory drive as described in DE-OS 21 14 432.
  • These two drives are shown in simplified form.
  • a press rotatably driven shaft 36 with a splined hub profile is axially movably guided, which transmits the rotary movement of the hollow shaft 36 to a screw bushing 39 via a universal joint 37.
  • the screw bushing 39 is rigidly connected to a further spline shaft 42.
  • the fixedly mounted bevel gear 43 is guided on the spline shaft 42 and cooperates with the bevel gear 44 on the eccentric shaft 25.
  • the rotary drive coming from the press is thus transferred directly to the eccentric shaft 25.
  • a pair of handlebars 46 is attached via a rotary joint 45.
  • a further pair of handlebars 47 is articulated on the downward second end part of the pair of handlebars 46 via a universal joint arrangement 48, which is articulated on both sides of the oscillating shaft 10 by a swivel joint 49 with its opposite end part.
  • adjusting means 41 e.g. a hydraulic motor, adjustable.
  • the actuating means 41 acts via a worm 35 on a stationary ring nut 40 screwed onto the screw bush 39, the rotation of which causes an axial adjustment of the screw bush 39 in the ring nut 40.
  • the maximum deflection 50 and the minimum deflection 51 which correspond to the positions 53 and 54 of the handlebar pairs 46, 47, are indicated on the oscillating shaft 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Basic Packing Technique (AREA)
EP87109454A 1986-07-12 1987-07-01 Vorrichtung zum schrittweisen Vorschieben von Bandmaterial mit zwei gegenläufig angetriebenen Vorschubwalzen Expired - Lifetime EP0253205B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863623647 DE3623647A1 (de) 1986-07-12 1986-07-12 Vorrichtung zum schrittweisen vorschieben von bandmaterial mit zwei gegenlaeufig angetriebenen vorschubwalzen
DE3623647 1986-07-12

Publications (3)

Publication Number Publication Date
EP0253205A2 EP0253205A2 (de) 1988-01-20
EP0253205A3 EP0253205A3 (en) 1988-03-30
EP0253205B1 true EP0253205B1 (de) 1990-10-17

Family

ID=6305101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109454A Expired - Lifetime EP0253205B1 (de) 1986-07-12 1987-07-01 Vorrichtung zum schrittweisen Vorschieben von Bandmaterial mit zwei gegenläufig angetriebenen Vorschubwalzen

Country Status (4)

Country Link
US (1) US4792074A (es)
EP (1) EP0253205B1 (es)
DE (2) DE3623647A1 (es)
ES (1) ES2018504B3 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677328A5 (es) * 1988-10-26 1991-05-15 Bruderer Ag
CH679134A5 (es) * 1989-05-03 1991-12-31 Bruderer Ag
EP0417457A3 (en) * 1989-08-11 1991-07-03 Seiko Instruments Inc. Method of producing field effect transistor
IT223039Z2 (it) * 1990-04-24 1995-06-09 Panotec Srl Struttura di dispositivo di bloccaggio, particolarmente durarnte il trascinamento del cartone
DE4221687C2 (de) * 1992-07-02 1997-05-22 Raster Zeulenroda Werkzeugmasc Vorschubvorrichtung zum intermittierenden Vorschub von Band- oder Drahtmaterial
US5720421A (en) † 1994-02-28 1998-02-24 Vamco Machine & Tool, Inc. Elecronically controlled high speed press feed
KR980009576A (ko) * 1995-09-29 1998-04-30 이케우찌 마사토 유체직기에 있어서의 씨실송출장치
US5992722A (en) * 1996-11-26 1999-11-30 The Minster Machine Company Zero force roll release for high speed press feed units
DE59803358D1 (de) * 1998-11-20 2002-04-18 Bruderer Ag Vorrichtung zum schrittweisen Vorschieben eines bandförmigen Werkstückes
US6843156B1 (en) * 2000-10-10 2005-01-18 Jere F. Irwin Apparatus for conveying, guiding, and locating a thermoformable web
DE50203282D1 (de) * 2002-07-08 2005-07-07 Bruderer Ag Frasnacht Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben
ATE381396T1 (de) * 2002-08-22 2008-01-15 Bruderer Ag Vorschubvorrichtung zum intermittierenden zuführen eines bandförmigen rohlings zu einer presse und verfahren zum betrieb derselben
ATE396806T1 (de) 2004-11-05 2008-06-15 Bruderer Ag Vorrichtung zum zuführen eines bandförmigen halbzeugmaterials zu einer presse und verfahren zum einstellen der banddicke einer vorschubvorrichtung
ATE442214T1 (de) * 2007-01-08 2009-09-15 Bruderer Ag Vorrichtung zum intermittierenden zuführen eines band- oder drahtfírmigen halbzeugmaterials zu einer presse
CN102120237B (zh) * 2010-11-26 2012-11-07 武汉木兰环保设备有限公司 自动进料式冲孔机

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1275984A (en) * 1916-10-06 1918-08-13 Keystone Steel & Wire Co Wire-feeding mechanism.
US2514261A (en) * 1944-11-27 1950-07-04 J H Sternbergh Rotary intermittent feed mechanism
US2643115A (en) * 1946-06-11 1953-06-23 Embart Mfg Company Stock feeding mechanism
US2946586A (en) * 1953-09-17 1960-07-26 Albert F Pityo Web feeding mechanism
NL214975A (es) * 1956-03-01
US3425612A (en) * 1967-05-25 1969-02-04 Us Industries Inc Dual roll feeding apparatus
DE2114432C3 (de) * 1971-03-25 1978-08-03 L. Schuler Gmbh, 7320 Goeppingen Vorschubvorrichtung an einer Presse
CH543932A (de) * 1971-10-01 1973-11-15 Bruderer Ag Vorrichtung zum schrittweisen Vorschieben eines Werkstückes
DE2454460A1 (de) * 1974-11-16 1976-05-20 Grau Erich Stanzwerk Elek Vorschubvorrichtung zur intermittierenden materialzufuhr an stanzen oder pressen
DE2454514C2 (de) * 1974-11-16 1983-10-27 Erich Grau, Stanzwerk für Elektrobleche, 7126 Sersheim Vorschubvorrichtung zur intermittierenden Materialzufuhr an Stanzen oder Pressen
US4043494A (en) * 1976-02-23 1977-08-23 Amp Incorporated Apparatus for feeding a plurality of wires
US4549683A (en) * 1983-02-22 1985-10-29 Sankyo Manufacturing Company, Ltd. Roll feed apparatus
JPH024740Y2 (es) * 1984-09-18 1990-02-05

Also Published As

Publication number Publication date
DE3623647A1 (de) 1988-01-14
EP0253205A2 (de) 1988-01-20
DE3765590D1 (de) 1990-11-22
EP0253205A3 (en) 1988-03-30
ES2018504B3 (es) 1991-04-16
US4792074A (en) 1988-12-20

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