NL7702926A - Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder - Google Patents

Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder

Info

Publication number
NL7702926A
NL7702926A NL7702926A NL7702926A NL7702926A NL 7702926 A NL7702926 A NL 7702926A NL 7702926 A NL7702926 A NL 7702926A NL 7702926 A NL7702926 A NL 7702926A NL 7702926 A NL7702926 A NL 7702926A
Authority
NL
Netherlands
Prior art keywords
knife holder
torsion bar
hydraulic plate
ram
arms coupled
Prior art date
Application number
NL7702926A
Other languages
Dutch (nl)
Original Assignee
Bronswerk Bv
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 Bronswerk Bv filed Critical Bronswerk Bv
Priority to NL7702926A priority Critical patent/NL7702926A/en
Publication of NL7702926A publication Critical patent/NL7702926A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure

Abstract

The hydraulic plate-trimming shear has a bottom knife holder mounted in a frame, and a top one moved up and down in relation to it by a drive. A torsion bar (10) in bearings in the frame has two or more arms (11, 12), each connected by a hinging coupling to the top knife holder (6). One or more hydraulic rams (17) move the top holder up and down. The chamber inside each ram on the opposite site of the piston to the piston rod can be connected to a hydraulic fluid source at full pressure. The ram can act directly between the bottom knife holder (2) and one of the arms on the torsion bar.
NL7702926A 1977-03-17 1977-03-17 Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder NL7702926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7702926A NL7702926A (en) 1977-03-17 1977-03-17 Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7702926A NL7702926A (en) 1977-03-17 1977-03-17 Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder

Publications (1)

Publication Number Publication Date
NL7702926A true NL7702926A (en) 1978-09-19

Family

ID=19828187

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7702926A NL7702926A (en) 1977-03-17 1977-03-17 Hydraulic plate trimming shears - has torsion bar with arms coupled to ram operated top knife holder

Country Status (1)

Country Link
NL (1) NL7702926A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421782A2 (en) * 1989-10-06 1991-04-10 Wysong And Miles Company Shearing machine
WO2014016119A1 (en) * 2012-07-27 2014-01-30 Siemens Plc Variable rake shear
CN104302429B (en) * 2012-07-27 2018-08-31 首要金属科技有限责任公司 The variable angle shears

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421782A2 (en) * 1989-10-06 1991-04-10 Wysong And Miles Company Shearing machine
EP0421782A3 (en) * 1989-10-06 1992-04-08 Wysong And Miles Company Shearing machine
WO2014016119A1 (en) * 2012-07-27 2014-01-30 Siemens Plc Variable rake shear
CN104302429A (en) * 2012-07-27 2015-01-21 西门子有限公司 Variable rake shear
US9908188B2 (en) 2012-07-27 2018-03-06 Primetals Technologies, Limited Variable rake shear
CN104302429B (en) * 2012-07-27 2018-08-31 首要金属科技有限责任公司 The variable angle shears

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Legal Events

Date Code Title Description
BV The patent application has lapsed