Abstract:
The tube belt conveyor has a flat belt (1) in the form of a helically seamed tube at least over the length of its transporting part. Tubularity of the belt is achieved by winding the flat belt helically to be tubular about its longitudinal axis. The helically seamed tube is disposed between a bending drum (3) and traction drum (5) of the conveyor. The helical configuration is produced and maintained by the aid of roller sets (7,9). In the helically seamed tube belt it is possible, if desired, to make bends by means of bending roller sets (8).
Abstract:
PURPOSE:To unify the bending strength by dispersing joint positions at both ends of core members at a distance over the whole belt periphery to avoid their presence in the same width direction in an endless belt using core members such as a steel cord. CONSTITUTION:Tensile strength core members 1 such as a steel cord are suspended across supporting rolls 4, 4' at a predetermined distance, the core members 1 are held by a jig 6 at positions near both ends, and both ends are joined 2 by soldering or the like. Next, individual core members 1 are shifted by a fixed quantity in the longitudinal direction and arranged so that joint sections 2 are not located in the same width direction but dispersed over the whole periphery. Then, the cover rubber is laminated and cured. According to this constitution, the bending strength can be unified over the whole belt.
Abstract:
PURPOSE:To improve wear-resistance and to keep lagging material from being separated to slip off by forming a concave portion for burying a wear-resisting lagging material in a lining material covering a base material and burying the lagging material in the lining material in a lagging material for a conveyer belt. CONSTITUTION:The surfaces of base materials 6 of the upper surface 3-1 of a conveyer belt, the outer peripheral surface 1-1 of a driving pulley and the inner surface 4-1 of a hopper are coated with an adhesive lining material 7. A lagging material L is buried L-1 in the lining material 7, with the upper surface L-3 of the lagging material L exposed. The lagging material L is formed like a bar by ultra-hard wear-resisting raw material such as ceramics or the like, in such a manner that the shape of the section is substantially laid H-shaped. Thus, the effective area for preventing wear is increased to prevent the lagging material from being separated to slip off.
Abstract:
PURPOSE:To miniaturize and stabilize an endless belt controller by using a system in which a skew-advancement detection signal level is divided into three levels, the intermediate level is made into an insensitive zone, and a solenoid for vertically moving rollers is operated at upper and lower levels. CONSTITUTION:In a belt skew-advancement detector 24, the contact condition betwen a lever 26 and a belt 11 is changed according to the skew-advancement condition of the belt 11, the lever 26 turns around a support shaft 28, a light detector 27 moves between an opaque portion 25a, a semi-transparent portion 25b, and a transparent portion 25c, and detection signal are sent out according to each condition. Of these signals, signal for the semitransparent portion 25b is regarded as an insensitive zone by a control circuit and the control circuit does not operate, but signals positioned in the opaque portion 25a and the transparent portion 25c are judged as a skew-advancement condition. The solenoid for vertically moving conveyer rollers (not illustrate) is put into on-off action, and the roller positions are corrected. Only one skew-advancement detector is thus sufficient, and the miniaturization and stabilization of the belt position controller can be attained.
Abstract:
PURPOSE:To prevent powder-like transported objects such as poisonous substances, combustibles, etc. from being dropped and scattered and polluting the surroundings during the return path by automatically rounding the return path belt of a belt conveyor into a cylindrical shape with the transport surface facing inward. CONSTITUTION:An outward path belt 1a is curved in an arc shape and supported by a supporting roller 8 arranged in an open-leg U-shape above each supporting frame 5. A return path belt 1b is rounded in a cylindrical shape and supported by shape-forming rollers 11 annularly arranged by multiple pivotal supporting metals 10 facing the tangent direction of the return path belt 1b to the supporting plate 9 in each supporting frame 5. Transported objects are thrown into a cargo receiving hopper, the flattened return path belt 1b is supported by rounding rollers 12, 13 at the upper face and side faces when it turns around a driven drum from above and is gradually made in a trough shape, the overlapped section is then rounded in a cylindrical shape downward to enter the shape-forming rollers. The belt 1b is again twisted near a driving drum with the overlapped section located below, it passes through an extension device to return to the driving drum.
Abstract:
PURPOSE:To obtain a miniature and light magnetic belt which is capable of rotating without slipping, by a method wherein a plurality of magnetic metallic pieces are arranged on the surface of a rubber belt having a tension resisting padding and a timing belt part is formed on its back. CONSTITUTION:A plurality of iron pieces 4 is arranged on the surface of a rubber belt 3 having a tension resisting padding 2, such as a steel cord at identical intervals in a longitudinal direction of the rubber belt and secured on the rubber belt 3 along with the padding 2 by welding them to stop metal fittings 6 in the shape of the letter U secured by molding. The iron pieces 4 are formed into measurements whose length is shorter than width of the belt, and plane surface parts 5 are formed on both sides of a row of the iron pieces 4 of the belt 3. The back of the belt 3 is made into a timing belt part 9 by forming lateral grooves 7 which are narrower than the width of the belt and are provided at regular intervals. A magnetic belt is constituted as stated above so that a vehicle is run along rails by rotation of the belt through a magnet device adsorbing the iron pieces 4 (both of them are outlined in a sketch).