FIELD: pressing of long articles with variable cross-section from metal and nonmetallic plastic materials. SUBSTANCE: device has container, pressing stamp and die with die funnel and outlet hole. Die or its part is formed of movable members which may vary position irrespective of pressing stamp motion. Die funnel or its part is formed by shaping surfaces of movable members. Movable member is made in the form of turning cylinder or twin truncated cone, or their part having area of cylindrical side surface with diameter exceeding size by axis of movable member. Shaping surface is made in the form of cylindrical side surface of movable member, or made in the form of hollow of variable profile on side surface. Method includes changing of movable member position irrespective of pressing stamp motion. The method and device allow pressing from plastic materials of articles, mainly, long-size whose cross-section varies continuously, periodically, or stepwise in length with increase or decrease in cross-section. EFFECT: higher efficiency. 7 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2340418C1 |
| DIE SET OF PRESS FOR PRESSING ARTICLES WITH REGULAR CROSS SECTION | 0 |
|
SU1690880A1 |
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|
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| TOOL FOR EXTRUDING TUBES AND RODS | 1997 |
|
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| LONG-SIZE ARTICLE EXTRUDING DEVICE | 0 |
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| METHOD OF PRODUCTION OF IMPACT EXTRUSION ON TUBE-PROFILE PRESSES AND DEVICE USED FOR THIS | 2007 |
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| METHOD OF MAKING ARTICLES BY BACKWARD EXTRUSION AND APPARATUS FOR PERFORMING THE SAME | 1987 |
|
RU2076007C1 |
| DIE ASSEMBLY FOR REVERSE EXTRUSION | 0 |
|
SU664705A1 |
| PRESS-WASHER OF VARIABLE DIAMETER FOR METAL-PRESSING | 0 |
|
SU569354A1 |
