GB1207460A - Method and apparatus for servering steel bars - Google Patents
Method and apparatus for servering steel barsInfo
- 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
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
- B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
- B23D31/002—Breaking 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).
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)
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)
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 |
-
1968
- 1968-05-21 GB GB2411568A patent/GB1207460A/en not_active Expired
- 1968-05-27 SE SE703568A patent/SE374289B/xx unknown
- 1968-05-28 DE DE19681752448 patent/DE1752448C3/en not_active Expired
- 1968-05-31 CH CH813368A patent/CH493295A/en not_active IP Right Cessation
- 1968-05-31 BE BE716002D patent/BE716002A/xx not_active IP Right Cessation
- 1968-05-31 FR FR1567604D patent/FR1567604A/fr not_active Expired
- 1968-05-31 AT AT524668A patent/AT281561B/en not_active IP Right Cessation
Cited By (2)
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 |
---|---|
DE1752448C3 (en) | 1978-12-07 |
AT281561B (en) | 1970-05-25 |
FR1567604A (en) | 1969-05-16 |
DE1752448A1 (en) | 1971-05-27 |
BE716002A (en) | 1968-10-16 |
CH493295A (en) | 1970-07-15 |
SE374289B (en) | 1975-03-03 |
DE1752448B2 (en) | 1978-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |