GB1204563A - Improvements in or relating to drop-forging presses - Google Patents

Improvements in or relating to drop-forging presses

Info

Publication number
GB1204563A
GB1204563A GB5325068A GB5325068A GB1204563A GB 1204563 A GB1204563 A GB 1204563A GB 5325068 A GB5325068 A GB 5325068A GB 5325068 A GB5325068 A GB 5325068A GB 1204563 A GB1204563 A GB 1204563A
Authority
GB
United Kingdom
Prior art keywords
weight
piston
forging
valves
oil
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
GB5325068A
Inventor
Hans Beche
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.)
Individual
Original Assignee
Individual
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 claimed from DE19671627413 external-priority patent/DE1627413C3/en
Application filed by Individual filed Critical Individual
Publication of GB1204563A publication Critical patent/GB1204563A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/36—Drives for hammers; Transmission means therefor for drop hammers

Abstract

1,204,563. Forging and stamping presses. H. BECHE. 11 Nov., 1968 [9 Nov., 1967; 17 May, 1968], No. 53250/68. Heading B3H. A forging or stamping press has its upper tup connected to a piston b actuated through oil in a pressure chamber in the piston by a drive weight d which dips into the oil and hydraulic lifting jacks K to raise the piston and weight to compress air in a cylinder f which accelerates the weight after release of the jacks. The weight has an upper piston head in the cylinder f and the air chamber g is supplied with compressed air through a valve h when the weight is uppermost. The weight is accelerated by the compressed air and at the end of the stroke the piston head enters an air buffer n. The buffer serves to recoil the weight. The movement of the weight is transmitted through the oil to move the tup, for example, at <SP>1</SP>/ 7 the weight speed. The press can be modified for slow working or drop forging by having a pair of outlet ports (o), (p), Fig. 2 (not shown), in the buffer. The ports are controlled by valves (q), (r). In one arrangement, Fig. 2, the valves are arranged to operate the press for dropforging and in the second arrangement, Fig. 3, the valves are arranged to operate for slow pressing.
GB5325068A 1967-11-09 1968-11-11 Improvements in or relating to drop-forging presses Expired GB1204563A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671627413 DE1627413C3 (en) 1967-11-09 1967-11-09 Drop forging press
DE1752382 1968-05-17

Publications (1)

Publication Number Publication Date
GB1204563A true GB1204563A (en) 1970-09-09

Family

ID=25753867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5325068A Expired GB1204563A (en) 1967-11-09 1968-11-11 Improvements in or relating to drop-forging presses

Country Status (2)

Country Link
FR (1) FR1590989A (en)
GB (1) GB1204563A (en)

Also Published As

Publication number Publication date
FR1590989A (en) 1970-04-20

Similar Documents

Publication Publication Date Title
ES475585A1 (en) An arrangement for starting the operation of a cushioned-piston jack
GB1204563A (en) Improvements in or relating to drop-forging presses
GB1106448A (en) Improvements in dynamometers for well pumps
GB1278155A (en) Counter-blow hammer
GB1372640A (en) Overload protective device for presses
GB1371390A (en) Hydraulic press
GB1207785A (en) Improvements in or relating to counter-blow hammers
GB853492A (en) Hydraulic presses
GB1016293A (en) Improvements in and relating to air-hydraulic rams
GB1157876A (en) Improvements in Forging Machines
GB769308A (en) Improvements relating to pressure controlling or cushioning appliances
GB1286691A (en) Hydraulic pressure control valve having hydraulic or pneumatic variable stroke actuator means
GB1085755A (en) Hydraulic drop-forging press
GB870598A (en) Vertical hydraulic down-stroke press
GB1340406A (en) Metal-working presses
GB750046A (en) Improvements in metal working presses
GB524564A (en) Improvements in piston type control valves for hydraulic presses
SU364378A1 (en) PULSING DEVICE FOR MECHANICAL PRESSES OF DOUBLE ACTION
GB1059127A (en) Forging press or the like with a pressure fluid drive
GB1179186A (en) Workpiece-Ejector Mechanism for Presses.
EP0285435A3 (en) A ram for a press
GB789538A (en) Improvements in and relating to control valves for hydraulic presses
GB733447A (en) Improvements in or relating to hydraulic or pneumatic ram apparatus
GB563728A (en) Improvements in and relating to fluid-pressure-actuated presses
GB482456A (en) Improvements relating to presses

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees