| 摘要 |
Hollow products(1) are carried by their supporting ring(1a) by three or more transporting systems(2a-2d), at least one of which is powered and each of which runs circulates in a plane(B1-B4). Each plane forms an angle(alpha a-alpha d) of 0-90[deg] with the plane(A) of the supporting ring on the side facing away from the product. Each of the four transporting system(2a-2d) comprises a continuous belt passing around deflection rolls and drive rolls. The angles(alpha a-alpha d) between each plane of belt movement(B1-B4) and the supporting ring plane(A) are equal, preferably 20-80[deg] and more preferably 55-65[deg]. Belts are arranged in pairs on opposite sides of the products(1), above and below the supporting ring(1a) and contact the latter to convey the products by friction. At least one belt pair(2a,2b;2c,2d) above and below the supporting ring(1a) are vertically adjustable so that a gap(S') through which each supporting ring moves can be varied. The gap is less than ring thickness to produce the conveying friction. Belt pairs may also be adjusted in the transverse direction to accommodate products of different diameters. The planes(B1-B4) form a symmetrical X shape and at least one inspection unit is located in the upper and/or lower shank area of the X arrangement. Products are conveyed along a linear path and horizontally. Each belt may be driven by its own motor or one belt has a motor drive and the others are connected to this drive. An ejector for faulty products is located after the transporting section. |
