IT1256093B - Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura - Google Patents

Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura

Info

Publication number
IT1256093B
IT1256093B ITMI922527A ITMI922527A IT1256093B IT 1256093 B IT1256093 B IT 1256093B IT MI922527 A ITMI922527 A IT MI922527A IT MI922527 A ITMI922527 A IT MI922527A IT 1256093 B IT1256093 B IT 1256093B
Authority
IT
Italy
Prior art keywords
piston
control unit
stroke
hydraulic control
trolleys
Prior art date
Application number
ITMI922527A
Other languages
English (en)
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 filed Critical
Priority to ITMI922527A priority Critical patent/IT1256093B/it
Publication of ITMI922527A0 publication Critical patent/ITMI922527A0/it
Priority to EP93203048A priority patent/EP0597521A1/en
Priority to US08/144,470 priority patent/US5540372A/en
Publication of ITMI922527A1 publication Critical patent/ITMI922527A1/it
Application granted granted Critical
Publication of IT1256093B publication Critical patent/IT1256093B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/27—Carriages; Drives
    • B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Actuator (AREA)
  • Hydraulic Motors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Un gruppo di comando (10) per carrelli di tiro, in particolare per banchi di trafilatura, comprede una camma (11) agente su almeno un pistone idraulico di comando (16, 17), il pistone idraulico di comando (16, 17) essendo connesso idraulicamente ad almeno un pistone (18, 19) di spinta di un carrello di tiro (20, 21) lungo la sua corsa. Vantaggiosamente, il pistone di spinta (18, 19) è un pistone a doppio effetto, un lato di esso essendo connesso al detto pistone idraulico di comando (16, 17) e l'altro lato essendo connesso ad un elemento di espansione (41, 42), accumulante energia cinetica sotto forma di pressione alla spinta del carrello (20, 21) nella sua corsa di andata, per restituire l'energia per la spinta del carrello (20, 21) nella sua corsa di ritorno. In particolare, i pistoni di comando (16, 17) sono due, disposti in opposizione di fase per essere comandati dalla camma (11) a spingere alternativamente lungo una corsa di andata due carrelli (20, 21) fra loro allineati.
ITMI922527A 1992-11-04 1992-11-04 Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura IT1256093B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI922527A IT1256093B (it) 1992-11-04 1992-11-04 Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura
EP93203048A EP0597521A1 (en) 1992-11-04 1993-10-30 "Drive unit for traction carriages, in particular for drawbenches"
US08/144,470 US5540372A (en) 1992-11-04 1993-11-02 Cam activated hydraulic drive with hydro-pneumatic accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922527A IT1256093B (it) 1992-11-04 1992-11-04 Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura

Publications (3)

Publication Number Publication Date
ITMI922527A0 ITMI922527A0 (it) 1992-11-04
ITMI922527A1 ITMI922527A1 (it) 1994-05-04
IT1256093B true IT1256093B (it) 1995-11-27

Family

ID=11364229

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922527A IT1256093B (it) 1992-11-04 1992-11-04 Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura

Country Status (3)

Country Link
US (1) US5540372A (it)
EP (1) EP0597521A1 (it)
IT (1) IT1256093B (it)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984980A (en) * 1951-07-05 1961-05-23 Anglo American Extrusion Compa Hydraulic press apparatus
US2862360A (en) * 1954-05-31 1958-12-02 Alsacienne Constr Meca Hydraulic control of an elastic load
DE1061049B (de) * 1956-02-28 1959-07-09 Martin Schmidt Vorrichtung fuer den Antrieb von Zugmitteln mittels eines in einem Zylinder hydraulisch bewegten Kolbens
DE1027166B (de) * 1956-07-13 1958-04-03 Hydraulik Gmbh Insbesondere fuer eine Rohrstossbank bestimmter hydraulischer Langhubantrieb
DE1800424B1 (de) * 1968-10-01 1970-02-26 Waldenmaier J E H Kraftkolbenantrieb fuer Armaturen
US3583268A (en) * 1970-05-15 1971-06-08 Albert W Scribner High speed stock feeder
FR2168880B1 (it) * 1972-01-25 1976-07-23 Vallourec
US4003278A (en) * 1975-03-14 1977-01-18 Jackes-Evans Manufacturing Company Tube cutting apparatus
US4328670A (en) * 1980-09-29 1982-05-11 Reynolds Metals Company Hydraulic motion amplifier
DE3130820C1 (de) * 1981-08-04 1983-08-25 Schumag Gmbh, 5100 Aachen Vorrichtung zur Steuerung einer mit verschiedenen Arbeitsgeschwindigkeiten betriebenen Schlittenziehmaschine
IT1201802B (it) * 1986-08-06 1989-02-02 Danieli Off Mecc Gruppo comando per banchi di trafilatura
US4829880A (en) * 1987-08-11 1989-05-16 Adams Rite Products, Inc. Fluid powered linear slide
JP2762089B2 (ja) * 1989-01-13 1998-06-04 曙ブレーキ工業株式会社 三位置位置決め油圧シリンダー
DE4020776A1 (de) * 1990-06-29 1992-01-09 Pi Patente Gmbh Vorrichtung zum antrieb eines werkzeuges fuer eine axiale hin- und herbewegung des werkzeuges
US5336067A (en) * 1993-06-09 1994-08-09 Leon Lim Spherical engine

Also Published As

Publication number Publication date
ITMI922527A1 (it) 1994-05-04
EP0597521A1 (en) 1994-05-18
US5540372A (en) 1996-07-30
ITMI922527A0 (it) 1992-11-04

Similar Documents

Publication Publication Date Title
NO940422D0 (no) Dobbeltvirkende aksellerator for bruk med hydrauliske slagverktoey
GB1191608A (en) A Forging Manipulator Co-operating with a Forging Press.
CN101865176A (zh) 单活塞杆双向式多作用液压缸
CN103291685B (zh) 一种小负载高速、大负载低速缸
GB1228058A (it)
TW287977B (en) Hydraulic bolt tensioner
BR0202853A (pt) Cilindro de pressão de fluido e laminador
IT1256093B (it) Gruppo di comando per carrelli di tiro,in particolare per banchi di trafilatura
GB1461931A (en) Load grasping clamp assembly
GB1425129A (en) Hydraulic forging press
CN203114776U (zh) 一种双缸单活塞杆液压缸
AU2003237872A1 (en) Servo-controlled integral stop for use with a servo-controlled hydraulic piston
CN201991864U (zh) 一种双缸并联油缸
ATE306332T1 (de) Antriebsanordnung einer metallstrangpresse
GB1566617A (en) Extrusion press
CN211852377U (zh) 一种带有缓冲保护作用的液压油缸
FR2245865A1 (en) Ram for e.g. a shock absorber - cylinder and piston have complementary elliptical sections
GB1236384A (en) Improvements in or relating to actuators having a hydraulic actuator ram
SE9503439L (sv) Servomanövrerad stoppventilanläggning
IT1248476B (it) Gruppo di iniezione per macchina idraulica per pressofusione, munito di dispositivo per l`eliminazione di picchi di pressione all`iniezione
SU935399A1 (ru) Толкатель
CN208720898U (zh) 一种通用火炮反后坐装置
CN203030663U (zh) 铝挤压机挤压容室金属流动装置
SU823671A1 (ru) Гидравлический привод несимметричногогидРОцилиНдРА
IT1259486B (it) Amplificatore di potenza meccanico nonche' morsa per macchina con amplificatore di potenza meccanico

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961127