JPS5483659A - Automatic speed reducer - Google Patents
Automatic speed reducerInfo
- Publication number
- JPS5483659A JPS5483659A JP15131477A JP15131477A JPS5483659A JP S5483659 A JPS5483659 A JP S5483659A JP 15131477 A JP15131477 A JP 15131477A JP 15131477 A JP15131477 A JP 15131477A JP S5483659 A JPS5483659 A JP S5483659A
- Authority
- JP
- Japan
- Prior art keywords
- length
- coil
- speed
- rolled material
- defective
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To make possible the reduction of speed at the defective position of the rolled material to be automatically surely performed, by installing the memories for storing information upon the rolled material, the arithmetic circuit for computing the position for reducing the speed of the coil, and the speed controller for the driving motor, etc. CONSTITUTION:At the first pass of the reversible cold rolling, the operator 7 operates the defective-point-data of the weld point, etc., the memory 12 memorizes the length from the tip to the defective point, and the memory 13 memorizes the full length of the coil. The stand is reversely driven; and the outputs from the pulse generator 5, the forward slip setter 8, and the roll diameter corrector 9, are inputted to the operator 7 which then operates the legth of the rolled material 4; this length data, information from memories 12 and 13, and the value of the draft percentage setter 18, are inputted to operators 16 and 17; hereby, the length of the rolled material 4 is converted to the length after the second pass. This value is inputted to the operator 19 which subtracts the coil length up to the defective point; hereby, the length up to the tip of coil in the second pass is operated. The difference in the length obtained by the operators 17 and 19, is compared with the coil length necessary for completing the speed reduction in the stand by the comparator 22; and correspondingly to this, the speed of the work roll is reduced through the speed controller 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15131477A JPS5483659A (en) | 1977-12-16 | 1977-12-16 | Automatic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15131477A JPS5483659A (en) | 1977-12-16 | 1977-12-16 | Automatic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5483659A true JPS5483659A (en) | 1979-07-03 |
Family
ID=15515929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15131477A Pending JPS5483659A (en) | 1977-12-16 | 1977-12-16 | Automatic speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5483659A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080422A (en) * | 2016-11-22 | 2018-05-29 | 上海宝钢工业技术服务有限公司 | Milling train temper mill roller tilts the detection method for causing steel defect position |
| CN111389908A (en) * | 2020-03-27 | 2020-07-10 | 宁波宝新不锈钢有限公司 | Method for improving yield of single-stand reversing mill |
-
1977
- 1977-12-16 JP JP15131477A patent/JPS5483659A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080422A (en) * | 2016-11-22 | 2018-05-29 | 上海宝钢工业技术服务有限公司 | Milling train temper mill roller tilts the detection method for causing steel defect position |
| CN111389908A (en) * | 2020-03-27 | 2020-07-10 | 宁波宝新不锈钢有限公司 | Method for improving yield of single-stand reversing mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5666304A (en) | Method of operating multiistand heat rolling mill | |
| JPS5483659A (en) | Automatic speed reducer | |
| JPS53120660A (en) | Controlling method for tension in rolling mill | |
| JPS53112253A (en) | Controlling method for interstand tension in continuous rolling mill | |
| GB2004391A (en) | Method of controlling molten steel level in mold of continuous casting apparatus | |
| JPS56111505A (en) | Cold rolling method for strip | |
| JPS55130316A (en) | Controlling method for tension | |
| JPS53131263A (en) | Reversible type rolling equipment and its control method | |
| JPS54122658A (en) | Controlling method and apparatus for inter-stand tension of continuous hot rolling mill | |
| JPS5872384A (en) | Switching device for current/speed control | |
| JPS5573411A (en) | Automatic decelerator for tandem mill | |
| JPS55139107A (en) | Controlling method for thickness of sheet | |
| JPS51135074A (en) | Automatic wind-down device of loading machines | |
| JPH0433706B2 (en) | ||
| JPS56122755A (en) | Tension controller for winding machine | |
| SU676344A1 (en) | Rolling rate control system | |
| JPS5741814A (en) | Setting device for rotational speed of roll of rolling mill | |
| SU771839A1 (en) | Method of selection of gaps in kinematic chain roll stand | |
| JPS54138850A (en) | Sheet threader for rolling mill or the like | |
| JPS54122657A (en) | Loop controller for rolled material | |
| JPS5619916A (en) | Tension controller | |
| JPS5472837A (en) | Towing device | |
| JPS5545590A (en) | Tension control method of continuous rolling mill | |
| JPS6219362Y2 (en) | ||
| JPS5633176A (en) | Method and apparatus for control of welding |