JPS55100829A - Forming method for spiral sheet - Google Patents
Forming method for spiral sheetInfo
- Publication number
- JPS55100829A JPS55100829A JP818179A JP818179A JPS55100829A JP S55100829 A JPS55100829 A JP S55100829A JP 818179 A JP818179 A JP 818179A JP 818179 A JP818179 A JP 818179A JP S55100829 A JPS55100829 A JP S55100829A
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- sheet material
- dies
- prepared
- pressing
- 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.)
- Granted
Links
Abstract
PURPOSE: To manufacture the large size spiral sheet at high efficiency, by pressing the sheet material cut into a ring type and being sent forward successively into the clearance between the lower dies and the freely vertically movable upper dies, both being provided with the pressing planes of a specified shape.
CONSTITUTION: The upper dies 4 and lower dies 5, both being provided with the pressing plane consisting of inclined curved plane of a specified shape, are set in the press machine; the sheet material 3 is prepared by blanking into a ring type and by cutting radially a part so as to form the cut ends; thus prepared sheet material 3 is set on the lower dies 5. The sheet material 3 is sent forward successively while being turned round, and the upper dies 4 is continuously moved up and down for executing the press work; hereby, the specified shape spiral sheet 3' is formed to one pitch. Suitable number of thus prepared spiral sheets are jointed by welding; hereby, the spiral blade for use of the spiral classifier, screw conveyer, etc., can be easily manufactured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP818179A JPS55100829A (en) | 1979-01-29 | 1979-01-29 | Forming method for spiral sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP818179A JPS55100829A (en) | 1979-01-29 | 1979-01-29 | Forming method for spiral sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55100829A true JPS55100829A (en) | 1980-08-01 |
JPS6260170B2 JPS6260170B2 (en) | 1987-12-15 |
Family
ID=11686132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP818179A Granted JPS55100829A (en) | 1979-01-29 | 1979-01-29 | Forming method for spiral sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55100829A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596064A (en) * | 1984-07-18 | 1986-06-24 | Koppers Company, Inc. | Method for manufacturing a screw flight |
-
1979
- 1979-01-29 JP JP818179A patent/JPS55100829A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596064A (en) * | 1984-07-18 | 1986-06-24 | Koppers Company, Inc. | Method for manufacturing a screw flight |
Also Published As
Publication number | Publication date |
---|---|
JPS6260170B2 (en) | 1987-12-15 |
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