JPS5592241A - Production of separator for concrete mold - Google Patents
Production of separator for concrete moldInfo
- Publication number
- JPS5592241A JPS5592241A JP16542578A JP16542578A JPS5592241A JP S5592241 A JPS5592241 A JP S5592241A JP 16542578 A JP16542578 A JP 16542578A JP 16542578 A JP16542578 A JP 16542578A JP S5592241 A JPS5592241 A JP S5592241A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- dies
- separator
- same
- threads
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/022—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cell Separators (AREA)
Abstract
PURPOSE:To inexpensively obtain the captioned separator which sufficiently provides the function of a mold receiving piece by pressing the specified positions of a metal rod with grooving dies and rotating and moving the same in the axial direction to form the tapered grooves and build-up parts of the specified diameters in the pressed parts and thread parts in the end parts. CONSTITUTION:Thread rolling dies 10, 11 and the grooving dies 12, 13 placed by leaving a specified spacing by way of collars 16 are mounted to revolving shafts 17 and while a metal rod 1 is rotated and moved to the direction B to constitute the thread rolling dies which roll threads 2, whereby the threads 2 are rolled. At the same time, the groove parts 3a of the same diameter as that of each part of the threads 2 and the ring-form build-up parts 4 having the outside diameter D larger than the thread outside diameter d are formed by the depression of the grooving dies 12, 13 which have V-form section protruding end parts 14 at the circumferential part and whose outside diameter size is the same as the diameter of the dies 10, 11, whereby the captioned separator 1 is obtained. In this way, the post fitting of the mold receiving piece 6 becomes effective and the displacement and the like of the receiving piece 6 as with conventional methods are eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16542578A JPS5592241A (en) | 1978-12-29 | 1978-12-29 | Production of separator for concrete mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16542578A JPS5592241A (en) | 1978-12-29 | 1978-12-29 | Production of separator for concrete mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5592241A true JPS5592241A (en) | 1980-07-12 |
| JPS5542653B2 JPS5542653B2 (en) | 1980-10-31 |
Family
ID=15812171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16542578A Granted JPS5592241A (en) | 1978-12-29 | 1978-12-29 | Production of separator for concrete mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5592241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0776712A1 (en) * | 1995-11-29 | 1997-06-04 | PI-GI S.r.l. | Method for the production of a special screw for hinges in furniture and screws obtained with this method |
| WO2009120153A1 (en) * | 2008-03-24 | 2009-10-01 | Bong Sai Chua | Method for working a thread on deformed reinforcing bar |
-
1978
- 1978-12-29 JP JP16542578A patent/JPS5592241A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0776712A1 (en) * | 1995-11-29 | 1997-06-04 | PI-GI S.r.l. | Method for the production of a special screw for hinges in furniture and screws obtained with this method |
| WO2009120153A1 (en) * | 2008-03-24 | 2009-10-01 | Bong Sai Chua | Method for working a thread on deformed reinforcing bar |
| SG155801A1 (en) * | 2008-03-24 | 2009-10-29 | Chua Bong Sai | Method for working a thread on deformed reinforcing bar |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5542653B2 (en) | 1980-10-31 |
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