EP0253205A2 - Dispositif pour l'avance intermittente de feuillard avec deux cylindres d'avance actionnés en sens opposé - Google Patents
Dispositif pour l'avance intermittente de feuillard avec deux cylindres d'avance actionnés en sens opposé Download PDFInfo
- Publication number
- EP0253205A2 EP0253205A2 EP87109454A EP87109454A EP0253205A2 EP 0253205 A2 EP0253205 A2 EP 0253205A2 EP 87109454 A EP87109454 A EP 87109454A EP 87109454 A EP87109454 A EP 87109454A EP 0253205 A2 EP0253205 A2 EP 0253205A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- feed roller
- handlebar
- rocker
- strip material
- eccentric
- 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
Links
Images
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 - stepwise 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 from the latter can be moved away 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 energy storage means engages in the effective direction of the pressure of the second feed roller to the first feed roller.
- Devices of this type run 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.
- 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.
- the handlebar With the handlebar 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 oscillates back and forth via a connecting rod drive which is variable 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.
- the rocker 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 element 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-element for holding the strip material during the return movement of the first feed roller, and that on the link element spaced from the Sem attack point on the rocker attacks a connecting rod, which is to be driven essentially parallel to the rocker and in the direction of this in a fixed bearing via an eccentric.
- 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 swing back and forth via an oscillating shaft 10.
- 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, for example, via a vibratory drive, as described in DE-OS 21 14 432.
- a spline shaft 38 is axially movably guided in a shaft 36, which is rotatably driven by a press, for example, and 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 transmitted directly to the eccentric shaft 25.
- a pair of handlebars 46 is attached via a rotary joint 45.
- another pair of handlebars 47 is articulated via a universal joint arrangement 48, which is articulated with its opposite end part via a swivel joint 49 on both sides of the oscillating shaft 10.
- the actuating means 41 acts via a worm 35 on a stationary ring nut 40 screwed onto the screw bushing 39, the rotation of which causes an axial adjustment of the screw bushing 39 in the ring nut ter 40 causes.
- 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.
- Fig. 3 the handlebars and pivot bearings are numbered according to Fig. 1.
- the common articulation point 14 for the pressing member 18 moves from the position 14 'in the position 14 ", so that there is a simultaneous contact of the feed roller 3 and the pressing member 18 with the strip material 1.
- the articulation point 21 of the connecting rod 22 on the link element 9 moves here from the position 21 'to the position 21 "on a circular arc part about the axis 11 in the position 11'.
- the latter moves Articulation point 21 from position 21 "initially on a circular arc piece around point 14" into position 21 "', since the pressing member 18 lies on the strip material 1.
- the axis 11 of the feed roller 3 moves from the point 11' in point 11 ".
- the feed roller 3 thus lifts from the strip material 1 as it passes through the eccentric 24 through the position 24 "(FIG. 5).
- the further rotation of the eccentric 24 into the position 24" causes the handlebar element 9 to rest on the height-adjustable stop 28.
- Fig. 5 shows the period of the return of the feed roller 2, in which the strip material 1 is to be held between the pressing member 18 and the counter member 19.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
- Basic Packing Technique (AREA)
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 true EP0253205A2 (fr) | 1988-01-20 |
EP0253205A3 EP0253205A3 (en) | 1988-03-30 |
EP0253205B1 EP0253205B1 (fr) | 1990-10-17 |
Family
ID=6305101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87109454A Expired - Lifetime EP0253205B1 (fr) | 1986-07-12 | 1987-07-01 | Dispositif pour l'avance intermittente de feuillard avec deux cylindres d'avance actionnés en sens opposé |
Country Status (4)
Country | Link |
---|---|
US (1) | US4792074A (fr) |
EP (1) | EP0253205B1 (fr) |
DE (2) | DE3623647A1 (fr) |
ES (1) | ES2018504B3 (fr) |
Cited By (4)
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 |
EP0395972A1 (fr) * | 1989-05-03 | 1990-11-07 | Bruderer Ag | Dispositif pour l'avance intermittente de feuillard |
EP0581045A1 (fr) * | 1992-07-02 | 1994-02-02 | RASTER-ZEULENRODA WERKZEUGMASCHINEN GmbH | Dispositif d'avance pour le feuillard ou les barres |
GB2319489A (en) * | 1996-11-26 | 1998-05-27 | Minster Machine Co | Zero force roll release for high speed press feed units |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0606114A1 (fr) * | 1989-08-11 | 1994-07-13 | Seiko Instruments Inc. | Méthode de fabrication d'un transistor à effet de champ |
IT223039Z2 (it) * | 1990-04-24 | 1995-06-09 | Panotec Srl | Struttura di dispositivo di bloccaggio, particolarmente durarnte il trascinamento del cartone |
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 |
EP1002596B1 (fr) * | 1998-11-20 | 2002-03-13 | Bruderer Ag | Appareil pour le transport pas à pas d'une bande |
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 |
ES2296851T3 (es) * | 2002-08-22 | 2008-05-01 | Bruderer Ag | Dispositivo de avance para conducir de forma intermitente un pieza en bruto en forma de cinta a una prensa y procedimiento para su funcionamiento. |
DE502004007293D1 (de) | 2004-11-05 | 2008-07-10 | Bruderer Ag | Vorrichtung zum Zuführen eines bandförmigen Halbzeugmaterials zu einer Presse und Verfahren zum Einstellen der Banddicke einer Vorschubvorrichtung |
ES2331540T3 (es) * | 2007-01-08 | 2010-01-07 | Bruderer Ag | Dispositivo para alimentar de modo intermitente una prensa con un producto semiacabado en forma de banda o de alambre. |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643115A (en) * | 1946-06-11 | 1953-06-23 | Embart Mfg Company | Stock feeding mechanism |
US3425612A (en) * | 1967-05-25 | 1969-02-04 | Us Industries Inc | Dual roll feeding apparatus |
DE3347786A1 (de) * | 1983-02-22 | 1985-05-15 | Sankyo Manufacturing Co., Ltd., Tokio/Tokyo | Walzenvorschubeinrichtung |
Family Cites Families (10)
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 |
US2946586A (en) * | 1953-09-17 | 1960-07-26 | Albert F Pityo | Web feeding mechanism |
NL214975A (fr) * | 1956-03-01 | |||
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 |
JPH024740Y2 (fr) * | 1984-09-18 | 1990-02-05 |
-
1986
- 1986-07-12 DE DE19863623647 patent/DE3623647A1/de not_active Withdrawn
-
1987
- 1987-07-01 DE DE8787109454T patent/DE3765590D1/de not_active Expired - Lifetime
- 1987-07-01 ES ES87109454T patent/ES2018504B3/es not_active Expired - Lifetime
- 1987-07-01 EP EP87109454A patent/EP0253205B1/fr not_active Expired - Lifetime
- 1987-07-13 US US07/072,749 patent/US4792074A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643115A (en) * | 1946-06-11 | 1953-06-23 | Embart Mfg Company | Stock feeding mechanism |
US3425612A (en) * | 1967-05-25 | 1969-02-04 | Us Industries Inc | Dual roll feeding apparatus |
DE3347786A1 (de) * | 1983-02-22 | 1985-05-15 | Sankyo Manufacturing Co., Ltd., Tokio/Tokyo | Walzenvorschubeinrichtung |
Cited By (7)
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 |
EP0366108A3 (en) * | 1988-10-26 | 1990-10-17 | Bruderer Ag | Device for the stepwise feeding of a strip |
EP0395972A1 (fr) * | 1989-05-03 | 1990-11-07 | Bruderer Ag | Dispositif pour l'avance intermittente de feuillard |
US5163595A (en) * | 1989-05-03 | 1992-11-17 | Bruderer Ag | Intermittent feeding of a web-shaped workpiece |
EP0581045A1 (fr) * | 1992-07-02 | 1994-02-02 | RASTER-ZEULENRODA WERKZEUGMASCHINEN GmbH | Dispositif d'avance pour le feuillard ou les barres |
GB2319489A (en) * | 1996-11-26 | 1998-05-27 | Minster Machine Co | Zero force roll release for high speed press feed units |
GB2319489B (en) * | 1996-11-26 | 1999-07-14 | Minster Machine Co | Zero force roll release for high speed press feed units |
Also Published As
Publication number | Publication date |
---|---|
EP0253205A3 (en) | 1988-03-30 |
DE3623647A1 (de) | 1988-01-14 |
ES2018504B3 (es) | 1991-04-16 |
DE3765590D1 (de) | 1990-11-22 |
US4792074A (en) | 1988-12-20 |
EP0253205B1 (fr) | 1990-10-17 |
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