| 摘要 |
FIELD: technological processes. ^ SUBSTANCE: device contains casing, matrix, holder fixed in the casing, upper and lower puncheons and shaping elements. The matrix is made of joined shaping elements that form a closed circuit with their working surfaces. Shaping elements are equipped with the drive for their radial shifting and are supported on the bearing surfaces inside the holder. Upper and lower puncheons form a closed circuit with the shaping elements. Lower puncheon has an ability of axial shift along the casing. Shaping elements are made with an ability of axial shift along holder bearing surfaces. Drive of shaping elements radial shift is made in the form of connecting rods that connect shaping elements with the holder. There is a coaxial space in the lower puncheon, where the pusher is located. On the outer side of lower puncheon there is a circular bore, which is interacting with the catch installed in the casing. In between the lower puncheon and the casing there is an elastic support. ^ EFFECT: simplifies device drive design. ^ 3 cl, 7 dwg |
