EP0125367B1 - Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires - Google Patents

Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires Download PDF

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Publication number
EP0125367B1
EP0125367B1 EP83710024A EP83710024A EP0125367B1 EP 0125367 B1 EP0125367 B1 EP 0125367B1 EP 83710024 A EP83710024 A EP 83710024A EP 83710024 A EP83710024 A EP 83710024A EP 0125367 B1 EP0125367 B1 EP 0125367B1
Authority
EP
European Patent Office
Prior art keywords
crank
drive
slide
feeder according
feed
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
Application number
EP83710024A
Other languages
German (de)
English (en)
Other versions
EP0125367A1 (fr
Inventor
Werner Ing.-Grad. Leinhaas
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.)
E Bruderer Maschinenfabrik AG
Original Assignee
E Bruderer Maschinenfabrik 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
Application filed by E Bruderer Maschinenfabrik AG filed Critical E Bruderer Maschinenfabrik AG
Priority to EP83710024A priority Critical patent/EP0125367B1/fr
Priority to DE8383710024T priority patent/DE3373635D1/de
Priority to US06/604,729 priority patent/US4577791A/en
Priority to JP59088538A priority patent/JPS6037230A/ja
Publication of EP0125367A1 publication Critical patent/EP0125367A1/fr
Application granted granted Critical
Publication of EP0125367B1 publication Critical patent/EP0125367B1/fr
Expired legal-status Critical Current

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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
    • B21D43/10—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

Definitions

  • the invention relates to a tongs feed device for metal strips; Sheet metal strips or profiles for presses, scissors or the like Drive means mediated stroke, regardless of the direction of movement, only one of the two feed tongs is set to transport.
  • the forward and backward strokes of one chuck are equal to each other and the forward and backward strokes of the other chuck, and the forward stroke of each chuck is in phase with the backward stroke of the other chuck.
  • a convertible, hydraulic motor is used as the drive, a control device having a first switch which is assigned to the gripper carried by one of the clamping heads and a second switch which is assigned to the gripper carried by the other clamping head.
  • Each of these switches can be actuated by the associated gripper and controls the function of the other gripper in such a way that when the material is clamped in a gripper, the other gripper releases the material.
  • the drive direction is switched such that it is reversed when one of the switches is actuated by the gripping gripper assigned to it.
  • each feed tongs is assigned a carrying slide guided by a common guide track, each of which can be driven by a crank drive, that each crank drive consists of a crank wheel designed with an adjustable crank radius, a carrying slide for a feeding tongs and one the crank wheel with the support arm connecting the rocker arm, the crank wheels being arranged on two shafts, each of which is provided with a sprocket on the other, and both sprockets are connected by an endless drive and this is connected to the reversible drive means that the distance between the support slides from one another by a common Adjusting means for setting the crank radii synchronously, in opposite directions or diverging, via the crank arms, which each connect the crank pivot bearing and the slide pivot bearing, can be adjusted, and the path length of the forward and return runs is determined.
  • crank wheels are arranged on the bearings of a gearbox on the rear wall, and that the adjusting means is carried in a third bearing arranged centrally between the crank bearings and ends with a bevel gear, which in turn has preset crank radii which determine the maximum tong distance to the axis of the adjusting means, arranged at right angles and coaxially, with bevel gears provided with threaded spindle, which in turn engage in this position in diametrically opposite directions, provided in slide grooves of the crank wheels in threads corresponding to the spindles, these slides, each in the opposite direction - are slidably adjustable when the drive of the bevel gear connected to the adjusting means is actuated.
  • the transport of the sheet metal strip through the support slides connected to the feed tongs by the drive means via a crank drive assigned to each support slide has the advantage that the linear movement of the drive means by implement in two rectified rotary movements on the crank drives, a sinusoidal course of the speed of the feed tongs over their forward and return runs.
  • crank mechanism its arrangement and the connection via the elements mentioned further to the drive means is relatively simple and allows a wide adjustment range of the crank radii and thus the distance between the feed tongs connected to the support slides.
  • the setting is carried out synchronously, in opposite directions or diverging by means of a common adjusting means, it being one of the essential criteria of the invention that the distance between the support slides or the pliers determines the path length of the forward and return.
  • the adjusting means is arranged between the two crank bearings, into which the adjusting means for the sliders determining the crank radii engage at right angles and coaxially.
  • this forms an open long side along the rear wall that supports the bearings and two end faces that connect at right angles on both sides, the guideway bearing on two parallel planes being arranged between the end faces.
  • the drive means is a drive cylinder for the support slides, which are set at a distance from one another, and can be guided in a stroke-constant sliding manner on a fixedly arranged piston rod.
  • crank wheels are each equipped with two cams which can be directed against a fixed stop formed on the bottom of the gearbox for swiveling or stroke limitation.
  • each feed tongs can be created for yourself on request, which allows the possibility of a possibly desired different feed.
  • one of the two sliders which can be adjusted via a chain wheel and a threaded spindle and determines the crank radius, is designed to be separable from the adjusting means by means of a coupling.
  • the pliers feed device is arranged in a gear box 2 which is open on one side in its outline and takes over the frame function, wherein between the narrow end walls 2 ', in the area of the open side 2 ", an upper and lower bearing guide track 3 for the two, each with eight support rollers 4' equipped carriage 4, which in turn are each connected to a feed tongs 5, is arranged.
  • the wall 2 "'opposite this open side 2"' is the carrier of the drive for the adjusting mechanism of the crank radii 13.
  • three neck bearings 6, 7, 6 are arranged parallel to the bottom of the gearbox 2, lying in one plane, at the same distance , wherein the two outer neck bearings 6 are intended for receiving the unit consisting of a chain wheel 8, a shaft 9 and a crank wheel 10, while the middle bearing 7 as a guide for the disengageable adjusting means 12 for common, synchronously running, but oppositely directed
  • the setting of the dimension of the crank radii 13 serves on the two crank wheels 10.
  • the two sprockets 8 are connected by a chain drive, the two runs of this endless drive 14 each being releasably connected to a drive cylinder 15 which is movable on a fixed piston rod 11 and corresponds to the run direction when reaching the preset end position in opposite driving direction is switched.
  • the adjustment means 12 ends in a bevel gear 16, which in turn, with a preset crank radius 13 and the resulting maximum distance between pliers, in to the axis of the adjustment tels 12 engages bevel gears 17 arranged on all sides, at right angles and coaxially.
  • the slide pieces 18 provided with thread 19 are arranged such that they can be slidably adjusted in the opposite direction, starting from the threaded spindles 20 connected to the bevel gears 17.
  • the sliders 18 are each carriers of a crank pivot bearing 21 for the reverse offset to each other, i.e. Deflecting upwards and downwards, pivotally arranged crank arms 23.
  • the other end of the crank arms 23 is also pivotally connected to a slide pivot bearing 22 arranged on each support slide 4.
  • Finite belts 24 can be transported either from right to left or from left to right, depending on which tongs and which transport direction are being controlled.
  • a high feed precision is ensured by fixed stops 25, which are arranged on the bottom of the gearbox 2, and the cams 26, which are each formed on a crank wheel 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Reciprocating Conveyors (AREA)
  • Press Drives And Press Lines (AREA)
  • Transmission Devices (AREA)

Claims (9)

1. Appareil d'avancement par pinces pour bandes en tôle (24) ou profiles pour des presses, cisailles ou machines-outil pareilles, ayant deux pinces d'avancement (5) disposées sur le côté d'alimentation de la presse avec la direction d'avancement et l'écart entre eux réglables, et des organes de commande réversibles (15) raccordés à eux pour la marche avant et retour des pinces d'avancement (5) réalisable entre deux courses de la presse, à chaque course communiquée par les organes de commande (15), sans égard à la direction de mouvement, seulement une des deux pinces d'avancement (5) étant ajustée de façon à transporter, caractérisé en ce que pour le transport de la bande (24) un chariot porteur (4) d'une commande par bielle (10/23) guidé par un chemin de guidage commun (3) est coordonné de façon actionnable à chaque pince d'avancement (5), que chaque commande par bielle consiste en une roue à manivelle (10) à rayon de manivelle (13) réglable, un chariot porteur (4) pour une pince d'avancement (5) et une bielle oscillante (23) raccordant la roue à manivelle (10) au chariot porteur (4), les roues à manivelle (10) étant disposées sur deux arbres (9), dont chacun est pourvu à son autre bout d'une roue à chaîne (8), les deux roues à chaîne (8) étant jointes par une commande sans fin (14), celle-ci étant raccordée à l'organe de commande à mouvement réversible (15), que la distance entre les deux chariots porteurs (4) est réglable par un organe de réglage commun (12) pour le réglage des rayons de manivelle (13) de façon synchrone, en sens opposé ou divergeant, par les bielles oscillantes (23) des chariots porteurs (4) raccordant le palier de manivelle oscillant (21) au palier oscillant (22) du chariot, et détermine la longeur de la marche avant et retour.
2. Appareil d'avancement par pinces selon revendication 1, caractérisé en ce que les roues à manivelle (10) sont logées dans deux paliers (6) formés sur la paroi arrière (2"') d'une boîte d'engrenage.
3. Appareil d'avancement par pinces selon revendication 2, caractérisé en ce que l'organe de réglage (12) est porté dans un troisième palier (7) arrangé au milieu entre les paliers de manivelle (6) et se termine dans une roue conique (16), celle-ci, avec les rayons de manivelle (13) préreglés et déterminant la distance maximale entre les pinces, engrenant à son tour des roues coniques (17) disposées en angle droite et équiaxialement par rapport à l'axe de l'organe de réglage (12) et pourvues d'une tige filetée (20), qui engrènent à leur tour des pièces glissoires (18) de direction, dans cette position, diamétralement opposée, arrangées dans des rainures glissoires (27) des roues de manivelle (10) et ayant des filets (19) correspondant avec les tiges (20), les pièces glissoires (18) étant réglables de manière glissante, toujours en sens opposé, sur actionnement de la commande de la roue conique (16) raccordée à l'organe de réglage (12).
4. Appareil d'avancement par pinces selon revendication 2, caractérisé en ce que la boîte d'engrenage (2) forme le long de la paroi arrière (2"') portant les paliers (6, 7, 6) et entre deux parois frontales (2') y jointes des deux côtés en angle droit un côté longitudinal ouvert (2"), le chemin de guidage (3) portant sur deux plans parallèles étant disposé entre les parois frontales (2').
5. Appareil d'avancement par pinces selon les revendications 1 à 4, caractérisé en ce que l'organe de commande pour les chariots porteurs (4) à l'écart entre eux réglé est un cylindre de commande guidable sur une tige de piston stationnaire (11 ) de sorte à glisser de manière constante aux courses.
6. Appareil d'avancement par pinces selon les revendications 1 à 4, caractérisé en ce que chaque chariot porteur (4) est guidé sur le chemin de guidage (3) sur plusieurs rouleaux d'appui (4') engrenant le chemin de guidage (3) sur les deux côtés, et que le palier oscillant du chariot (22) est configuré autour d'un axe menant par le centre de gravité du chariot.
7. Appareil d'avancement par pinces selon les revendications 2 à 4, caractérisé en ce que les roues à manivelle (10) sont pourvues chacune de deux cames (16) dirigeables chacune contre une butée fixe (25) formée sur le fond de la boîte d'engrenage (2) pour limiter l'oscillation et les courses.
8. Appareil d'avancement par pinces selon revendication 1, caractérisé en ce que deux cylindres de commande (15) contre-courants enclen- chables et déclenchables ayant la forme de cylindres de travail sont disposés entre les deux brins parallèles de la commande sans fin (14).
9. Appareil d'avancement par pinces selon les revendications 1 à 5, caractérisé en ce que toujours une des deux pièces glissoires (18) réglables par une roue à chaîne (8) et une tige filetée (20), déterminant le rayon de manivelle (13) est formée de sorte à être séparable de l'organe de réglage (12) par un accouplement.
EP83710024A 1983-05-04 1983-05-04 Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires Expired EP0125367B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP83710024A EP0125367B1 (fr) 1983-05-04 1983-05-04 Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires
DE8383710024T DE3373635D1 (en) 1983-05-04 1983-05-04 Gripper feeding device for presses or the like
US06/604,729 US4577791A (en) 1983-05-04 1984-04-27 Gripper feed advance mechanism for a press or the like
JP59088538A JPS6037230A (ja) 1983-05-04 1984-05-04 プレス等用把持送り装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83710024A EP0125367B1 (fr) 1983-05-04 1983-05-04 Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires

Publications (2)

Publication Number Publication Date
EP0125367A1 EP0125367A1 (fr) 1984-11-21
EP0125367B1 true EP0125367B1 (fr) 1987-09-16

Family

ID=8191524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83710024A Expired EP0125367B1 (fr) 1983-05-04 1983-05-04 Dispositif d'avancement à pinces sur des presses ou des machines-outils similaires

Country Status (4)

Country Link
US (1) US4577791A (fr)
EP (1) EP0125367B1 (fr)
JP (1) JPS6037230A (fr)
DE (1) DE3373635D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489623A (zh) * 2011-12-29 2012-06-13 山东丽鹏股份有限公司 全自动铝盖生产线铝板进料夹具

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278281A (ja) * 1985-09-27 1987-04-10 Toray Ind Inc 高強力柔軟皮革様物の製造方法
DE3775407D1 (de) * 1987-12-23 1992-01-30 Leinhaas Industrieberatung Zangenvorschubgeraet mit pneumatisch oder hydraulisch angetriebenen kurbeltrieben.
US5294282A (en) * 1991-04-17 1994-03-15 Herd Manufacturing, Inc. Tape handling apparatus
IT1266010B1 (it) * 1993-12-30 1996-12-16 Dalcos Srl Alimentatore a pinze per nastri di lamiera
WO2004000530A1 (fr) * 2002-06-25 2003-12-31 Sumitomo Bakelite Company Limited Dispositif et procede de traitement de ruban porteur
US9090426B2 (en) 2009-10-30 2015-07-28 Vamco International, Inc. Material feeding apparatus with gripper driving member and linkage
BE1023456B1 (nl) * 2016-03-09 2017-03-27 Fit Things Nv Snijinrichting en -methode
CN117564178B (zh) * 2024-01-16 2024-03-15 辽宁华天航空科技股份有限公司 一种超大异形钛合金零件超塑成型装置及工艺

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US1537749A (en) * 1923-10-11 1925-05-12 Colgrove Charles Everett Liner machine
US2468236A (en) * 1946-02-15 1949-04-26 Harold E Rue Device for feeding strip material
US2626452A (en) * 1947-12-20 1953-01-27 New Britain Machine Co Stock feed mechanism
US2626449A (en) * 1948-04-05 1953-01-27 New Britain Machine Co Stock-feed mechanism
DE964767C (de) * 1955-04-17 1957-05-29 Baustahlgewebe Gmbh Vorschubvorrichtung fuer die Laengsdraehte an Bewehrungsgitter-Schweissmaschinen
FR1139635A (fr) * 1955-10-13 1957-07-03 Cie Ind Francaise Tubes Elect Ameneur automatique de précision
US3083391A (en) * 1961-03-08 1963-04-02 Flexible Sewertool Corp Reciprocative mechanism for feeding sewer cleaner drive rod
DE1265106B (de) * 1965-04-07 1968-04-04 Frei Hans Joachim Zangenvorschubgeraet fuer Blechbaender oder Blechstreifen
DE1279631B (de) * 1967-01-13 1968-10-10 Baustahlgewebe Gmbh Vorrichtung zum schrittweisen Bewegen von in einer Vielpunkt-Schweissmaschine geschweissten Drahtgittern
AU3051067A (en) * 1967-11-29 1970-06-04 Vilcan Electrics Proprietary Limited Hitch feeder
US3583268A (en) * 1970-05-15 1971-06-08 Albert W Scribner High speed stock feeder
US3753522A (en) * 1971-02-19 1973-08-21 Red Bud Ind Inc Sheet transferring device and method
US3841181A (en) * 1972-11-29 1974-10-15 P Vinson Press with multiple shuttle feed
IT978321B (it) * 1973-01-22 1974-09-20 Pirelli Dispositivo di tenuta per vulca nizzatori a fluido riscaldante
US3863823A (en) * 1973-09-04 1975-02-04 Allred Metal Stamping Works Strip Stock Feeding Mechanism
US4059212A (en) * 1977-02-03 1977-11-22 Plessey Incorporated Stock feeder for punched stock
US4353162A (en) * 1979-01-26 1982-10-12 The Lummus Company Apparatus and process for manufacturing finned tubes
FR2474357A1 (fr) * 1980-01-24 1981-07-31 Normatic Sa Dispositif pour deplacer des produits en bobines ou en barres vers une machine
US4406390A (en) * 1981-10-09 1983-09-27 Hamilton Joel A Continuous motion, constant velocity web feeding apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489623A (zh) * 2011-12-29 2012-06-13 山东丽鹏股份有限公司 全自动铝盖生产线铝板进料夹具

Also Published As

Publication number Publication date
DE3373635D1 (en) 1987-10-22
US4577791A (en) 1986-03-25
JPS6037230A (ja) 1985-02-26
JPH0438494B2 (fr) 1992-06-24
EP0125367A1 (fr) 1984-11-21

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