FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used in production of long helical coils, particularly, for tubular conveyors for transfer of loose materials. Proposed device consists of driven wire draft device and shaping device mounted on foundation. Shaping device comprises wire guide and stationary mandrel with roller. Inner surface of said stationary mandrel has shaping groove making one complete turn of helical coil. Distance from surface of said coil to that of revolving roller equals wire diameter.
EFFECT: invariable position of shaping groove inlet part, higher reliability and simplified operation.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR COILING LARGE-LENGTH HELICAL SPIRALS | 2007 |
|
RU2338617C1 |
| SPIRAL FORMING APPARATUS | 2004 |
|
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|
RU2780324C1 |
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|
RU2185268C2 |
| 0 |
|
SU495128A1 | |
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|
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| METHOD OF PRODUCING SCREW SPIRALS, DEVICE TO THIS END, CORE DRIVE AND APPLIANCE TO REMOVE SCREW SPIRAL FROM CORE | 2010 |
|
RU2443490C1 |
| APPLIANCE FOR COILING SPIRALS | 0 |
|
SU1388144A1 |
