GB424065A - Improvements in or relating to the manufacture of tubes or hollow bodies by drawing - Google Patents
Improvements in or relating to the manufacture of tubes or hollow bodies by drawingInfo
- Publication number
- GB424065A GB424065A GB23101/33A GB2310133A GB424065A GB 424065 A GB424065 A GB 424065A GB 23101/33 A GB23101/33 A GB 23101/33A GB 2310133 A GB2310133 A GB 2310133A GB 424065 A GB424065 A GB 424065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pusher
- tube
- dies
- die
- mandrel
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
- B21C1/26—Push-bench drawing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
424,065. Making tubes &c. ROBER, E., 28, Alte Landstrasse, Kaiserswerth, D³sseldorf, Germany. Aug. 18, 1933, No. 23101. Convention date, Feb. 13. [Classes 83 (ii) and 83 (iv)] A blank b is pushed through dies a and /or rolls by a mandrel d which is pushed forward by mandrel rod f in the form of a closed ended tube which slides over a plunger i when fluid pressure is admitted to the tube f, the tube f being thereby under tension and so free from any tendency to bend. The tube f has a small end extension e which fits into the mandrel d and has a gland h at the other end. The plunger i, Fig. 3, and the tube f are supported by levers o held against them by tension springs p. The gland h, Fig. 4, has external ribs n sliding in grooves m in the guides l. Rollers g are driven to withdraw the mandrel rod f from the work, the fluid then being sucked out of the tube. In Fig. 5, the hydraulic pusher t is of too large a diameter to pass through a succession of dies q so each die is released from its holding bolts z by an extension rib u on the pusher t operating levers bb to force back the bolts z holding the die so that pins dd on the pusher can enter holes in the die and carry it along. The die holders have spring friction bushes ee to slide over the bolts dd and so remain thereon as they collect on the cone S. In Fig. 6 a winch w winds the pusher back. On return of the pusher the dies are also replaced and refixed in position automatically. To facilitate stripping the 3rd and 2nd last dies have clearance passes as in Fig. 13, and the last die has a circular pass Fig. 14 so that the tube is separated and freed from the mandrel. The means for releasing the dies from their positions and replacing them may also be applied to a pusher operated by rack and pinion. When rolls are used they are driven through a free-wheel device to allow over-run by the pusher.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE424065X | 1933-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB424065A true GB424065A (en) | 1935-02-14 |
Family
ID=6474284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23101/33A Expired GB424065A (en) | 1933-02-13 | 1933-08-18 | Improvements in or relating to the manufacture of tubes or hollow bodies by drawing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB424065A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT517326B1 (en) * | 2015-06-09 | 2018-11-15 | Sms Group Gmbh | Method for producing a metallic tube, method for operating a seamless tube system, bumper and seamless tube system |
-
1933
- 1933-08-18 GB GB23101/33A patent/GB424065A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT517326B1 (en) * | 2015-06-09 | 2018-11-15 | Sms Group Gmbh | Method for producing a metallic tube, method for operating a seamless tube system, bumper and seamless tube system |
AT517326A3 (en) * | 2015-06-09 | 2018-11-15 | Sms Group Gmbh | Method for producing a metallic tube, method for operating a seamless tube system, bumper and seamless tube system |
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