JPS55130312A - Rolling mill equipped with hydraulic screw-down cylinder and motor-driven screw-down pressure block - Google Patents
Rolling mill equipped with hydraulic screw-down cylinder and motor-driven screw-down pressure blockInfo
- Publication number
- JPS55130312A JPS55130312A JP3783479A JP3783479A JPS55130312A JP S55130312 A JPS55130312 A JP S55130312A JP 3783479 A JP3783479 A JP 3783479A JP 3783479 A JP3783479 A JP 3783479A JP S55130312 A JPS55130312 A JP S55130312A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- cylinder
- motor
- hydraulic
- hydraulic screw
- 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
Landscapes
- Press Drives And Press Lines (AREA)
Abstract
PURPOSE: To make easy the maintenance of the hydraulic screw-down cylinder, and to shorten the shutdown time of rolling work due to the maintenance of the hydraulic screw-down cylinder, by installing the hydraulic screw-down cylinder and the motor-driven screw-down pressure-block.
CONSTITUTION: In case of taking out the hydraulic screw-down cylinder 8 for the purpose of maintenance or replacement, the rail 5 is lifted up by the screws 3, 3'. Together with the rail 5, the cylinders 8, 8', and motor-driven screw-down pressure- blocks 6, 6', are elevated, leaving a gap between the cylinders 8, 8', and the upper surface of chocks 1, 1'. Next, the hydraulic screw-down pullback cylinder 14 is actuated to extend to pull back the cylinder 8, and at the same time, the motor- driven screw-down pressure-block 6 is moved by the extension of the actuated stroke cylinder 17. The motor-driven screw-down pressure-block 6 and the hydraulic screw-down cylinder 8' together with the rail 5 are moved down by the screw 3, 3', and then, these are placed under the condition ready for the rolling work. During the hydraulic screw-down cylinder 8 is being detached, the motor-driven screw- down pressure-block 6 works instead of the hydraulic screw-down cylinder 8; as a result, the shutdown time of rolling work is shortened.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3783479A JPS55130312A (en) | 1979-03-30 | 1979-03-30 | Rolling mill equipped with hydraulic screw-down cylinder and motor-driven screw-down pressure block |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3783479A JPS55130312A (en) | 1979-03-30 | 1979-03-30 | Rolling mill equipped with hydraulic screw-down cylinder and motor-driven screw-down pressure block |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55130312A true JPS55130312A (en) | 1980-10-09 |
Family
ID=12508551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3783479A Pending JPS55130312A (en) | 1979-03-30 | 1979-03-30 | Rolling mill equipped with hydraulic screw-down cylinder and motor-driven screw-down pressure block |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55130312A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589751A (en) * | 1983-06-01 | 1986-05-20 | Minolta Camera Kabushiki Kaisha | Attachment device for interchangeable optical device |
-
1979
- 1979-03-30 JP JP3783479A patent/JPS55130312A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589751A (en) * | 1983-06-01 | 1986-05-20 | Minolta Camera Kabushiki Kaisha | Attachment device for interchangeable optical device |
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