GB736599A - Improvements in and relating to rotating shears - Google Patents

Improvements in and relating to rotating shears

Info

Publication number
GB736599A
GB736599A GB2233852A GB2233852A GB736599A GB 736599 A GB736599 A GB 736599A GB 2233852 A GB2233852 A GB 2233852A GB 2233852 A GB2233852 A GB 2233852A GB 736599 A GB736599 A GB 736599A
Authority
GB
United Kingdom
Prior art keywords
shears
energizes
electromagnet
starting position
switch
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
GB2233852A
Inventor
Erhard Rudolf Henschker
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.)
Loewy Engineering Co Ltd
Original Assignee
Loewy Engineering Co Ltd
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 Loewy Engineering Co Ltd filed Critical Loewy Engineering Co Ltd
Priority to GB2233852A priority Critical patent/GB736599A/en
Publication of GB736599A publication Critical patent/GB736599A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B23D36/0058—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool stopping for a considerable time after each cutting operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

736,599. Shearing. LOEWY ENGINEERING CO., Ltd. Oct. 12, 1953 [Sept. 5, 1952], No. 22338/52. Class 83 (4). In a shearing machine in which rotary shears are stopped after each cut, a main motor which drives the shears during cutting and a pilot motor which returns the shears to their starting position are connected to the shears through clutches operative alternatively. Operation of a flag switch 21 by the stock energizes an electromagnet 5 which clutches a disc 6 so that the normally running main motor 1 drives the shears 8 through the cutting position.. A rotary limit switch 18 de-energizes the electromagnet 5 and energizes an electromagnet 15 which clutches the disc 6, whereupon the shears are slowed by a brake 17. After they have passed the starting position, a limit switch 19 energizes the pilot motor 11 which slowly reverses the shears 8 to the starting position where a switch 20 operates the brake 17 and de-energizes the electromagnet 15.. After a predetermined time the electromagnet 5 is again operated and the cycle repeated. In a modification the switch 19 becomes operative before the shears reach the starting position and the pilot motor 11 drives them slowly forwards to this position.
GB2233852A 1952-09-05 1952-09-05 Improvements in and relating to rotating shears Expired GB736599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2233852A GB736599A (en) 1952-09-05 1952-09-05 Improvements in and relating to rotating shears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2233852A GB736599A (en) 1952-09-05 1952-09-05 Improvements in and relating to rotating shears

Publications (1)

Publication Number Publication Date
GB736599A true GB736599A (en) 1955-09-14

Family

ID=10177779

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2233852A Expired GB736599A (en) 1952-09-05 1952-09-05 Improvements in and relating to rotating shears

Country Status (1)

Country Link
GB (1) GB736599A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628410A (en) * 1969-11-21 1971-12-21 S & S Corrugated Paper Mach Cutoff control for cutting long sheets
EP0532820A1 (en) * 1991-09-17 1993-03-24 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft Rotational or lever shear
CN103551652A (en) * 2013-10-31 2014-02-05 苏州建莱机械工程技术有限公司 High-speed high-precision sizing online cut-off machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628410A (en) * 1969-11-21 1971-12-21 S & S Corrugated Paper Mach Cutoff control for cutting long sheets
EP0532820A1 (en) * 1991-09-17 1993-03-24 GFM Gesellschaft für Fertigungstechnik und Maschinenbau Aktiengesellschaft Rotational or lever shear
CN103551652A (en) * 2013-10-31 2014-02-05 苏州建莱机械工程技术有限公司 High-speed high-precision sizing online cut-off machine

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