GB1336484A - Counter-blow hammer - Google Patents

Counter-blow hammer

Info

Publication number
GB1336484A
GB1336484A GB5483571A GB5483571A GB1336484A GB 1336484 A GB1336484 A GB 1336484A GB 5483571 A GB5483571 A GB 5483571A GB 5483571 A GB5483571 A GB 5483571A GB 1336484 A GB1336484 A GB 1336484A
Authority
GB
United Kingdom
Prior art keywords
cylinders
tup
pistons
counter
retraction
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
GB5483571A
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.)
Schloemann AG
Original Assignee
Schloemann 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 Schloemann AG filed Critical Schloemann AG
Publication of GB1336484A publication Critical patent/GB1336484A/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
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/22—Drives for hammers; Transmission means therefor for power hammers
    • B21J7/34—Drives for hammers; Transmission means therefor for power hammers operating both the hammer and the anvil, so-called counter-tup

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Actuator (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

1336484 Hammers SCHLOEMANN AG 25 Nov 1971 [25 Nov 1970] 54835/71 Heading B3H A counter-blow hammer has the movement of its trips 7, 9 synchronized by an hydraulic coupling which comprises cylinders 13, 14 into which the piston-rods 18a, 19a of differential pistons 18, 19 extend, the pistons 18, 19 being mounted in hydraulic retraction cylinders 16, 17. The cylinders 13, 14 of the coupling are coaxial with the retraction cylinders 16, 17 and connected by a protection sleeve 23. The cylinders 13, 14 are connected by lines 15 to a cylinder unit 12 whose piston 11 is connected to the lower tup 9, by a rod 10. The upper tup 7 is connected by rods 25 to the pistons 18, 19. The tups are separated by supplying hydraulic fluid to the cylinders 16, 17 to compress gas above the tup and in accumulators 6. When the retraction cylinders 16, 17 are connected to exhaust the compressed gas causes the upper tup to effect a stroke with simultaneous upward movement of the lower tup.
GB5483571A 1970-11-25 1971-11-25 Counter-blow hammer Expired GB1336484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2057958A DE2057958B2 (en) 1970-11-25 1970-11-25 Hydraulically driven counterblow hammer

Publications (1)

Publication Number Publication Date
GB1336484A true GB1336484A (en) 1973-11-07

Family

ID=5789075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5483571A Expired GB1336484A (en) 1970-11-25 1971-11-25 Counter-blow hammer

Country Status (6)

Country Link
US (1) US3735631A (en)
JP (1) JPS518231B1 (en)
DE (1) DE2057958B2 (en)
FR (1) FR2115391B1 (en)
GB (1) GB1336484A (en)
IT (1) IT941261B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857272A (en) * 1971-08-26 1974-12-31 B Voitsekhovsky Counterstroke hammer
US3822579A (en) * 1972-10-24 1974-07-09 V Kononenko High-speed counterstroke hammer
DE3835298A1 (en) * 1988-10-17 1990-04-19 Dieffenbacher Gmbh Maschf CLAMP SLEEVE SURFACE STRUCTURE IN HYDRAULIC QUICK LIFT PRESSES
US6604443B2 (en) 2001-07-23 2003-08-12 Newell Window Furnishings, Inc. Blind and shade cutting center
AU2003272885A1 (en) * 2003-09-22 2005-04-11 Tomio Shimizu Gravity-applied special press
CN102688971A (en) * 2012-06-08 2012-09-26 镇江市锻压机床厂 Double-cylinder hydraulic hammer
CN102886479A (en) * 2012-10-26 2013-01-23 常州市立威刀具有限公司 Counter-blowing linkage type die forging device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863343A (en) * 1954-04-15 1958-12-09 Schloemann Ag Counterblow hammers
US2914971A (en) * 1957-05-28 1959-12-01 Lombard Corp Counter-blow forging hammer
GB964008A (en) * 1960-02-11 1964-07-15 Hydraulik Gmbh Method and apparatus for the production of blanks from cast ingots
GB1112181A (en) * 1963-11-05 1968-05-01 Nat Res Dev Improvements in or relating to impulse-forming and like machines
GB1109951A (en) * 1965-02-10 1968-04-18 Langenstein & Schemann Ag Hammers
AT278477B (en) * 1967-10-16 1970-02-10 Langenstein & Schemann Ag Hydraulic coupling for machines for forming a workpiece

Also Published As

Publication number Publication date
DE2057958C3 (en) 1979-06-13
DE2057958A1 (en) 1972-06-08
US3735631A (en) 1973-05-29
IT941261B (en) 1973-03-01
FR2115391A1 (en) 1972-07-07
FR2115391B1 (en) 1976-03-26
JPS518231B1 (en) 1976-03-15
DE2057958B2 (en) 1978-10-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee