GB1274799A - Improvements in or relating to shearing machines - Google Patents
Improvements in or relating to shearing machinesInfo
- Publication number
- GB1274799A GB1274799A GB2692470A GB2692470A GB1274799A GB 1274799 A GB1274799 A GB 1274799A GB 2692470 A GB2692470 A GB 2692470A GB 2692470 A GB2692470 A GB 2692470A GB 1274799 A GB1274799 A GB 1274799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cut
- shaft
- drive
- clutch
- cutter
- 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
- B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
- B23D25/02—Flying shearing machines
- B23D25/08—Flying shearing machines having two coacting shearing blades mounted independently
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
1,274,799. Flying shears. ZDARSKE STROJIRNY A SLEVARNY NARODNI PODNIK. 4 June, 1970 [13 June, 1969], No. 26924/70. Heading B3W. A flying shear which can readily be adapted to cut stationary material comprises a frame 4, a lower cutter 12 pivotally mounted in the frame, an upper cutter 10 mounted on an eccentric shaft 5 also mounted in the frame, a pair of arms 13 rigid with cutter 12 being connected to a pair of arms 14 rigid with cutter 10 by eccentric pins 17 adjustable to vary the cutting clearance, and means 20-22 for moving the lower cutter along the feed path of material to be cut. An electric motor 27 drives the shaft 5 through gearing, a mis-cut eccentric shaft 7, feed rolls 2 through variable-speed gearing and a shaft 26, Fig. 2, which drives a crank 20 for synchronizing the movement of the cutters with the movement of the material to be cut. A connecting rod 21 is pivotally connected with a nut 22, which is movable along a slot in the lower cutter support 11 by means of a screw 23 driven by a motor 25, to vary the radius R 2 according to the length of stock to be cut so that at the moment of cutting the horizontal component of velocity of the lower cutter 12 is equal to the stock velocity. A selsyn or other indicator indicates the adjustment of the nut and thus the length to be cut. To extend the range of possible cut lengths a mis-cut device is provided in the drive to the eccentric shaft 7 comprising clutches (43), (44) Fig. 3 (not shown) which can be selectively engaged to vary the transmission ratio. If only basic lengths are to be cut the shaft is located in its uppermost position and does not rotate, the clutch 43 locking the shaft to the drive housing 3. The drive to the feed rolls 2 includes a clutch 46, a differential gear 50 and a variable speed gear-box 52. The drive to the shaft 26 carrying the crank 20 includes a clutch 36. For cutting stationary sheet material the drive to the feed rollers and to the shaft 26 is interrupted by disengagement of clutches 36, 46 and application of brakes 37, 47. Auxiliary feed rollers are actuated when the clutch 46 is disengaged.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS420669 | 1969-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1274799A true GB1274799A (en) | 1972-05-17 |
Family
ID=5384276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2692470A Expired GB1274799A (en) | 1969-06-13 | 1970-06-04 | Improvements in or relating to shearing machines |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2027629A1 (en) |
FR (1) | FR2052611A5 (en) |
GB (1) | GB1274799A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51121885U (en) * | 1975-03-28 | 1976-10-02 | ||
CN102601446A (en) * | 2012-02-23 | 2012-07-25 | 西安交通大学 | Rotary precision rod tube feeding machine with alternating-current servo efficient and controllable feeding function |
CN103286249A (en) * | 2013-06-13 | 2013-09-11 | 中国石油大学(华东) | Variable-speed circumferential low-stress bending fatigue crack precise blanking machine and blanking method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT373523B (en) * | 1982-03-23 | 1984-01-25 | Voest Alpine Ag | DEVICE FOR CROSS-DIVIDING MOVING TAPES |
DE19750819A1 (en) * | 1997-11-17 | 1999-05-20 | Kocks Technik | Tube and long stock cutting machine using powered disc tool |
-
1970
- 1970-06-04 GB GB2692470A patent/GB1274799A/en not_active Expired
- 1970-06-05 DE DE19702027629 patent/DE2027629A1/en active Pending
- 1970-06-15 FR FR7021961A patent/FR2052611A5/fr not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51121885U (en) * | 1975-03-28 | 1976-10-02 | ||
CN102601446A (en) * | 2012-02-23 | 2012-07-25 | 西安交通大学 | Rotary precision rod tube feeding machine with alternating-current servo efficient and controllable feeding function |
CN102601446B (en) * | 2012-02-23 | 2013-10-16 | 西安交通大学 | Rotary precision rod tube feeding machine with alternating-current servo efficient and controllable feeding function |
CN103286249A (en) * | 2013-06-13 | 2013-09-11 | 中国石油大学(华东) | Variable-speed circumferential low-stress bending fatigue crack precise blanking machine and blanking method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2027629A1 (en) | 1970-12-17 |
FR2052611A5 (en) | 1971-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |