Belted layer attaching drum of tyre building machine

Abstract

The invention discloses a belted layer attaching drum of a tyre building machine. A swell-shrink apparatus comprises a sliding shaft, shaft seats, cone-shaped sliding bases, linear guide rails and supporting frames corresponding to drum blocks, wherein the sliding shaft is supported by the shaft seat at two ends of the sliding shaft; the cone-shaped sliding bases are slidingly mounted on the sliding shaft and connects an axial pushing mechanism; the linear guide rails are evenly distributed on the cone-shaped surfaces of the cone-shaped sliding bases; the supporting frames radially disposed corresponding to the linear guide rails are matched with the linear guide rails through guide rail sliding blocks; each drum block is located in position by being installed on the supporting frames; stainless steel lapping plates are disposed between adjacent drum blocks; one end of each lapping plate is fixedly installed on a side drum block; the other end of each lapping plate is lapped on the another side drum block; a guiding mechanism is disposed between installation plates and two end shaft seats; each drum block generates radial swell-shrink movement along left-and-right motion of the one-shaped sliding bases; and the lapping plates can guarantee that the excircle of the drum at work is a standard circle. The belted layer attaching drum is light in overall structure and convenient for control, and has high attaching precision, good structural generality and strong adaptability.

Description

(1) Technical field: [0001] The invention relates to a tire building machine, in particular to a tire building machine belt laminating drum. (2) Background technology: [0002] The traditional tire building machine belt lamination drum adopts the ordinary built-in cylinder radial expansion slotted drum and finger-shaped seamless drum. [0003] When the ordinary slotted drum is opened, if the radial stroke is too large, the gap between the drum blocks will appear very large. At this time, the belt layer is not a standard circle for the drum when it is laminated. The error of the layer perimeter is relatively large; the finger-shaped seamless drum is made of each drum block in the shape of fingers interspersed with each other. When the drum is opened, the overlapping parts of the fingers are in a seamless state, while the roots of the fingers are square holes one by one. It is not a seamless drum in the true sense, and the drum blocks of this structure are relatively thick, w...

AI Technical Summary

Problems solved by technology

[0005] In addition, because the overall weight of these two structures is relatively large, it is necessary to use a larger motor and brake to overcome its own moment of inertia in terms of control, and the strength requirements for the main shaft are relatively high, which increases the cost of the equipment as a whole.

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