GB1440987A - Method of and an arrangement for regulating the power drive or - Google Patents
Method of and an arrangement for regulating the power drive orInfo
- Publication number
- GB1440987A GB1440987A GB5647973A GB5647973A GB1440987A GB 1440987 A GB1440987 A GB 1440987A GB 5647973 A GB5647973 A GB 5647973A GB 5647973 A GB5647973 A GB 5647973A GB 1440987 A GB1440987 A GB 1440987A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roll
- difference
- exit
- speed
- arrangement
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
Abstract
1440987 Stretch levelling drive I UNGERER 6 Dec 1973 [7 Feb 1973] 56479/73 Heading B3E [Also in Division G3] In an arrangement in which a strip of material 3 is guided under stretching traction over a plurality of rolls 1, 2, e.g. in a metal stretchstraightening machine, the drive or braking of one of the rolls is controlled in response to the difference between the variation in elongation that occurs as it passes over a roll and a desired value for this quantity. In the embodiment the elongation that occurs between entry and exit of roll 1 is measured by comparing the difference in the number of pulses per unit time from a transmitter 19/24 on the roll (equivalent to entry speed) and a second transmitter 20/25 on the material at exit (exit speed). This difference is compared by unspecified means with a desired value and the result used to adjust the speed of an electric motor driving roll 1 (Fig. 2, not shown). Alternatively correction may be effected by differential gear or slip coupling.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2305777A DE2305777C3 (en) | 1973-02-07 | 1973-02-07 | Method and device for regulating the drive or the braking of power-driven or braked rollers, in particular in stretch leveling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1440987A true GB1440987A (en) | 1976-06-30 |
Family
ID=5871101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5647973A Expired GB1440987A (en) | 1973-02-07 | 1973-12-06 | Method of and an arrangement for regulating the power drive or |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3889505A (en) |
| AT (1) | AT324804B (en) |
| BE (1) | BE810710A (en) |
| DE (1) | DE2305777C3 (en) |
| FR (1) | FR2216816A5 (en) |
| GB (1) | GB1440987A (en) |
| IT (1) | IT998950B (en) |
| SE (1) | SE400532B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120622A (en) * | 1984-07-10 | 1986-01-29 | Mitsubishi Heavy Ind Ltd | Controlling method of tension leveler |
| DE102008038550A1 (en) * | 2008-08-20 | 2010-02-25 | Siemens Aktiengesellschaft | Method for controlling / regulating a drive load of a motor driving a roll of a rolling joint, control and / or regulating device, machine-readable program code, storage medium and industrial plant |
| ITMI20130229A1 (en) | 2013-02-19 | 2014-08-20 | I | ROLLER PLANTER FOR SHEET METERS AND PROCEDURE FOR FLOORING WITH A SHEET |
| DE202017101090U1 (en) * | 2017-01-30 | 2017-03-27 | Andritz Sundwig Gmbh | Bending machine for bending a metallic flat product |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2333864A (en) * | 1942-01-15 | 1943-11-09 | Carnegie Illinois Steel Corp | Extensometer |
| US2526296A (en) * | 1943-08-12 | 1950-10-17 | United Eng Foundry Co | Method and apparatus for processing strip metal |
| US2519818A (en) * | 1946-02-23 | 1950-08-22 | Acieries Et Forges Firminy | Rolling mill with set elongation |
| US3559431A (en) * | 1968-02-15 | 1971-02-02 | Bwg Bergwerk Walzwerk | Apparatus for stretching continuous bands |
| DE2118051C3 (en) * | 1971-04-14 | 1975-10-23 | Ungerer Geb. Dollinger, Irma, 7530 Pforzheim | Stretch straightener |
-
1973
- 1973-02-07 DE DE2305777A patent/DE2305777C3/en not_active Expired
- 1973-10-23 SE SE7314360A patent/SE400532B/en unknown
- 1973-10-24 IT IT30550/73A patent/IT998950B/en active
- 1973-11-23 AT AT984373A patent/AT324804B/en not_active IP Right Cessation
- 1973-12-06 GB GB5647973A patent/GB1440987A/en not_active Expired
- 1973-12-19 FR FR7345538A patent/FR2216816A5/fr not_active Expired
-
1974
- 1974-01-28 US US436920A patent/US3889505A/en not_active Expired - Lifetime
- 1974-02-07 BE BE140634A patent/BE810710A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3889505A (en) | 1975-06-17 |
| DE2305777B2 (en) | 1979-08-02 |
| DE2305777C3 (en) | 1980-04-03 |
| IT998950B (en) | 1976-02-20 |
| FR2216816A5 (en) | 1974-08-30 |
| BE810710A (en) | 1974-05-29 |
| DE2305777A1 (en) | 1974-08-15 |
| AT324804B (en) | 1975-09-25 |
| SE400532B (en) | 1978-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2440564C2 (en) | Machine for spark erosion cutting using a wire electrode | |
| SE7608439L (en) | CONTROL DEVICE ATMINSTONE OF AN ELECTRODE FOR GNISTEROSIVE ELECTROCHEMICAL CUTTING OF THE WORKPIECES | |
| GB1440987A (en) | Method of and an arrangement for regulating the power drive or | |
| GB1388732A (en) | Method of controlling the tensional stresses upon elongate workpieces in multi-ass cold drawing apparatus and multi-pass cold drawing apparatus | |
| US3552170A (en) | Method of treating hollow blooms in rolling mills | |
| GB1224301A (en) | Rolling mill for producing relatively thin material | |
| JPS5581011A (en) | Tension control method of skin-pass rolling equipment | |
| GB1296016A (en) | ||
| JPS55106617A (en) | Controlling unit for forward slip | |
| DE3066376D1 (en) | Machines for dipping fabrics | |
| SU410840A1 (en) | ||
| GB1344406A (en) | Strip stretching and straightening installations | |
| GB1238872A (en) | ||
| GB1076751A (en) | Improvements in or relating to regulable drive means | |
| GB1274698A (en) | Method and apparatus for stretch reducing | |
| GB1362735A (en) | Treatment of elongate workpieces under nonatmospheric conditions | |
| SU884768A1 (en) | Apparatus for controlling reversive straightening-and-skin rolling mill | |
| JPS59104485A (en) | Controller for loop of steel strip in acid pickling tank | |
| SU893906A1 (en) | Device for control of speed of rotation of drawing rollers in sheet glass producing machine | |
| SU1204281A1 (en) | Apparatus for controlling high-speed operation of a group of working stands of continuous rolling mill | |
| JPS5788908A (en) | Method for controlling product dimension of wire rod finishing block mill | |
| SU402403A1 (en) | AUTOMATIC REGULATION DEVICE | |
| SU662177A1 (en) | Method of automatic strip tension control in rolling mill inter-stand space | |
| SU885162A1 (en) | Method of control of glass drawing rate | |
| DE947277C (en) | Drive for the rollers and the mandrel on tube winding machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |