GB2200866A - Device for balancing a press ram - Google Patents

Device for balancing a press ram Download PDF

Info

Publication number
GB2200866A
GB2200866A GB08803004A GB8803004A GB2200866A GB 2200866 A GB2200866 A GB 2200866A GB 08803004 A GB08803004 A GB 08803004A GB 8803004 A GB8803004 A GB 8803004A GB 2200866 A GB2200866 A GB 2200866A
Authority
GB
United Kingdom
Prior art keywords
hollow rods
press
rods
balancing
press ram
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
Application number
GB08803004A
Other versions
GB2200866B (en
GB8803004D0 (en
Inventor
Erich Harsch
Hermann Benkler
Werner Schulzki
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.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten 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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of GB8803004D0 publication Critical patent/GB8803004D0/en
Publication of GB2200866A publication Critical patent/GB2200866A/en
Application granted granted Critical
Publication of GB2200866B publication Critical patent/GB2200866B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064—Counterbalancing means for movable press elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Forging (AREA)

Abstract

Device for balancing a press ram, in which the press ram is attached to hollow rods 1. The hollow rods are supported in pressure medium cylinders located on the headpiece or stand of the press. Breakage-resisting core rods 2 are provided within the hollow rods. Upon breakage of hollow rods 1 their lower ends displace downwards relative to core rods 2 and activate switches 4 to turn off the press. <IMAGE>

Description

DEVICE FOR BALANCING A PRESS RAM The present invention relates to a device for balancing a press ram, wherein the press ram is attached to hollow rods, which in their turn are supported by means of pistons in pressure medium cylinders which are located on the headpiece or stand of the press. These hollow rods can break when overloaded, which can cause considerable damage.
This is where the present invention comes in, with the ObjeDt of rating . breakage-resisting means with as simple a construction as possible.
For this purpose, with a device of the design described a+ the cutset, the invention proposes providing breakage-resistant means within the hollow rods. ihe particular constructive embodiment of the breakage-resistant means is described in ehe sub-claims. An embodiment of the invention is illustrated in the drawing, and is described in greater detail in the figures below, wherein: Fig. 1 shows a longitudinal section through the balancing device.
Fig. 2 shows an enlarged representation in a section A of Fig. 1, and Fig. 3 shows an identical section according to Fig. 2 after a break has occurred.
The device for balancing the press rams, which in their turn are supported by means of pistons 9 in the pressure medium cylinder 10, is located on the headpiece or stand.
In the device within the hollow rods 1 there are through tie bolts 2, which on the one hand are supported by means of threaded nuts 5 on the pistons 9 and on the other hand are supported by means of threaded nuts 6 on the lower threaded nuts 7 by means of interposed bearing pipes 3.
When the hollow rods 1 break switches 4 attached to the lower threaded nuts 6 are switched by means of the switch rods 8 which are screwed into the threaded nuts 9.
When the switches 4 are actuated, the press is switched off and a fault is displayed on a control board on the press.

Claims (5)

CLAIMS:
1. Device for balancing a press ram, in which the press ram is attached to hollow rods, which in their turn are supported in pressure medium cylinders located on the headpiece or stand of the press, and breakage-r-esisting means are provided within the hollow rods.
2. Device according to claim 1, wherein through tie bolts are located within the hollow rods and are supported on the one hand by mean of first threaded nuts or the like on the pistons of the pressure medium cylinders and on the other hand by means of second threaded. nuts on lower trea0..e1 ''1- S f hollow rods.
3. Device according to claims 1 and 2, wherein bearing pipes are interposed between the second threaded nuts and the lower threaded nuts of the hollow rods.
4. Device according to claims 1 to 3, wherein on the lower threaded nuts of the hollow rods are located switch rods which cooperate with switches attached to the threaded nuts.
5. Device for balancing a press ram substantially as herein described with reference to and as illustrated in the accompanying drawings.
GB8803004A 1987-02-11 1988-02-10 Device for balancing a press ram Expired - Lifetime GB2200866B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873704168 DE3704168A1 (en) 1987-02-11 1987-02-11 DEVICE FOR BALANCING THE PRESS PUMP

Publications (3)

Publication Number Publication Date
GB8803004D0 GB8803004D0 (en) 1988-03-09
GB2200866A true GB2200866A (en) 1988-08-17
GB2200866B GB2200866B (en) 1991-04-03

Family

ID=6320716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8803004A Expired - Lifetime GB2200866B (en) 1987-02-11 1988-02-10 Device for balancing a press ram

Country Status (5)

Country Link
DD (1) DD265860A5 (en)
DE (1) DE3704168A1 (en)
FR (1) FR2610569B1 (en)
GB (1) GB2200866B (en)
IT (1) IT1223628B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2243624A1 (en) * 2009-04-20 2010-10-27 Farina Presse S.p.A. Compensation cylinder for masses in movement with safety device for mechanical presses

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046498B (en) * 1954-03-29 1958-12-11 Hasenclever Ag Maschf Screw press with hollow spindle and longitudinal anchor that passes through it
US3348429A (en) * 1964-09-22 1967-10-24 May Pressenbau Gmbh Overload safety device in machines
DE2155864B2 (en) * 1971-11-10 1975-12-18 L. Schuler Gmbh, 7320 Goeppingen Safety inpact absorber for presses and/or punches - includes flat component which becomes corrugated under overload
US4011809A (en) * 1974-04-03 1977-03-15 L. Schuler Gmbh Press with hydraulic overload safety device and ram weight counterbalancing mechanism
CH589513A5 (en) * 1975-03-17 1977-07-15 Hydrel Ag
JPS60260758A (en) * 1984-06-05 1985-12-23 Yamatake Honeywell Co Ltd Thrush safety device of crank mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2243624A1 (en) * 2009-04-20 2010-10-27 Farina Presse S.p.A. Compensation cylinder for masses in movement with safety device for mechanical presses

Also Published As

Publication number Publication date
IT8723282A0 (en) 1987-12-30
GB2200866B (en) 1991-04-03
DE3704168A1 (en) 1988-08-25
IT1223628B (en) 1990-09-29
FR2610569B1 (en) 1991-07-19
DD265860A5 (en) 1989-03-15
DE3704168C2 (en) 1989-11-09
GB8803004D0 (en) 1988-03-09
FR2610569A1 (en) 1988-08-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050210