GB1207460A - Method and apparatus for servering steel bars - Google Patents

Method and apparatus for servering steel bars

Info

Publication number
GB1207460A
GB1207460A GB2411568A GB2411568A GB1207460A GB 1207460 A GB1207460 A GB 1207460A GB 2411568 A GB2411568 A GB 2411568A GB 2411568 A GB2411568 A GB 2411568A GB 1207460 A GB1207460 A GB 1207460A
Authority
GB
United Kingdom
Prior art keywords
bar
groove
rollers
tool
section
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
GB2411568A
Inventor
T Saito
M Saito
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
Application filed by Individual filed Critical Individual
Publication of GB1207460A publication Critical patent/GB1207460A/en
Expired legal-status Critical Current

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
    • B23D31/00Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
    • B23D31/002Breaking machines, i.e. pre-cutting and subsequent breaking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Turning (AREA)

Abstract

1,207,460. Breaking; shearing; forging; annular tool heads. T. SAITO, M. SAITO, M. SAITO and H. SAITO. 21 May, 1968 [1 June, 19671, No. 25115/68. Headings B3E, B3H, B3T and B3W. Steel bar a is severed by forming a V-section groove b in its circumferential surface, and pressing a severing tool 33 having a sharp cutting edge of V cross-section into the groove whilst the bar is supported by two members disposed one on each side of the groove. The groove may be formed in a round section bar a by cutting wheels 14 carried by levers 11 pivotally mounted on a rotary member 4, the bar being restrained from moving with the member 4. A ring cam 8 has three grooves each associated with respective rollers 13 on levers 11. When the ring cam 8 is rotated in the same direction, i.e. clockwise as seen in Fig. 1, as the rotary member 4 but at a slightly greater speed, the rollers are forced along cam surfaces 17 and the cutting wheels are forced into the bar. Cutting bits 60, Fig. 3, may be substituted for the cutting wheels. The grooved bar is clamped against support rollers 26 by hydraulicallyactuated clamps 27. The rollers are journalled in carriages 25 running on rollers 24. An hydraulically-operated tool 33 with an arcuate cutting edge of V-shaped in cross-section is forced into the groove. The carriages 25 move apart during the severing operation. Alternative support means comprise blocks (61) (Fig. 7, not shown) slidably mounted on a base (23) and urged towards each other by springs (62), the upper surface of the blocks adjacent each other being cut away to form rounded faces. In an alternative embodiment of the invention (Figs. 17-20, not shown) the severing tool 33, and a similar tool (64) opposed to it, are used to form diametrically opposed grooves in a round section bar, the bar being rotated through 90 degrees and grooved again to complete the circumferential groove. The bar is then supported on the means described with reference to Fig. 7 and the severing tool 33 is used alone to sever the bar. An alternative wheel cutter device for grooving square-section bars (Figs. 15 to 16, not shown) comprises a C-frame (55) supporting opposed rotary bodies (56), each carrying four equispaced wheels (63), two opposed faces of the bar being grooved by feeding the bar between the rotary bodies or feeding the C-frame relatively to a stationary bar. Cutting bits may replace the discs (63).
GB2411568A 1967-06-01 1968-05-21 Method and apparatus for servering steel bars Expired GB1207460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3525967 1967-06-01

Publications (1)

Publication Number Publication Date
GB1207460A true GB1207460A (en) 1970-10-07

Family

ID=12436800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2411568A Expired GB1207460A (en) 1967-06-01 1968-05-21 Method and apparatus for servering steel bars

Country Status (7)

Country Link
AT (1) AT281561B (en)
BE (1) BE716002A (en)
CH (1) CH493295A (en)
DE (1) DE1752448C3 (en)
FR (1) FR1567604A (en)
GB (1) GB1207460A (en)
SE (1) SE374289B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112872240A (en) * 2020-11-12 2021-06-01 郑州轻工业大学 Automatic steel bar cutting machine system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5407116A (en) * 1989-10-04 1995-04-18 Zexel Corporation Method and apparatus for cutting flat tubes
US6869000B2 (en) 1994-08-08 2005-03-22 Synthes (U.S.A.) Apparatus for cutting bodies having a non-circular cross section
FR2766748B1 (en) * 1997-07-29 1999-09-03 Ascoforge Safe PROCESS FOR MANUFACTURING A PLURALITY OF METAL PARTS BY FRAGILE BREAKING OF A PREDRAFT OF A PLURALITY OF PARTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112872240A (en) * 2020-11-12 2021-06-01 郑州轻工业大学 Automatic steel bar cutting machine system
CN112872240B (en) * 2020-11-12 2023-05-23 郑州轻工业大学 Automatic steel bar cutter system

Also Published As

Publication number Publication date
FR1567604A (en) 1969-05-16
BE716002A (en) 1968-10-16
DE1752448A1 (en) 1971-05-27
DE1752448B2 (en) 1978-03-30
DE1752448C3 (en) 1978-12-07
SE374289B (en) 1975-03-03
CH493295A (en) 1970-07-15
AT281561B (en) 1970-05-25

Similar Documents

Publication Publication Date Title
GB1419446A (en) Clamping device for a welding machine
US3922942A (en) Apparatus for cutting up tire casings
US3566503A (en) Method and apparatus for making grooved wheels
US3590674A (en) Restrained shearing method of bar material
US3415148A (en) Scrap cutting shear and improved knifehead
US2144987A (en) Method for making cutter blades
GB1417744A (en) Method and apparatus for longitudinally dividing webs
US3541905A (en) Cutting apparatus and method
GB1207460A (en) Method and apparatus for servering steel bars
ATE53318T1 (en) METHOD AND DEVICE FOR SEPARATING PROFILE MATERIAL.
US2203738A (en) Means for severing marginal trimmings as they are cut from sheetmetal strip
US3515326A (en) Apparatus for cutting of steel bars
DE3113356C1 (en) Workpiece clamping device for a metal (circular) sawing machine
US1978703A (en) Slitter
US2983043A (en) Pipe cutter
US2782814A (en) Machine for forming longitudinally curved members
US2381807A (en) Method of and means for removing burr from strips
US1970122A (en) Method of making thin abrasive wheels
US3572200A (en) Method and apparatus for spreading severed portions of a workpiece
GB1249698A (en) Device for severing billets of non-ferrous metals in multistrand continuous casting plants
US4453704A (en) Apparatus for retaining blanks in working machines
RU2068752C1 (en) Method and shears for cutting
GB727388A (en) Method of and device for performing cut-off operations with rotary cutting tools
US850611A (en) Machine for cutting or shearing metal sheets or plates.
JPH0641061B2 (en) Material clamping method for round steel cutting machine

Legal Events

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