Assembly drum of all-steel meridian large tyre-forming machine

Abstract

The invention discloses a building drum of an all-steel giant radial tire building machine. The drum comprises wide drum shoe collapsible mechanisms and narrow drum shoe collapsible mechanisms which are driven by a feed screw nut and embedded on a hollow main shaft, two sets of the wide drum shoe collapsible mechanisms and the narrow drum shoe collapsible mechanisms are symmetrically arranged on the right side and the left side, each set of the wide drum shoe collapsible mechanisms and the narrow drum shoe collapsible mechanisms comprises drive sleeves, a wide drum shoe connection rod, a narrow drum shoe connection rod, a left support ring and a right support ring, wherein, the left drive sleeve and the right drive sleeve are sheathed on the hollow main shaft and connected with a left nut and a right nut by a drive key, the left support ring and the right support ring are coaxially and symmetrically fixed on the two sides of the hollow main shaft; one end of the wide drum shoe connection rod and one end of the narrow drum shoe connection rod at the two sides are symmetrically articulated on corresponding drive sleeves, the other end of the wide drum shoe connection rod and the other end of the narrow drum shoe connection rod at the two sides are symmetrically articulated on a wide drum shoe seat and a narrow drum shoe seat; two ends of the wide drum shoe seat and the narrow drum shoe seat are in radial slide fit matched between a left positioning disk and a right positioning disk; drum shoulders form a whole body with the narrow drum shoe and the wide drum shoe after slide adjustment. The building drum has the advantages of good rigidity, strong stability, and fixed adjustment of the drum shoulders of the narrow drum shoe and the wide drum shoe, and the narrow drum shoe and the wide drum shoe without providing a drum shoulder telescopic mechanism.

Description

(1) Technical field: [0001] The invention relates to tire production equipment, in particular to a building drum of an all-steel radial giant tire building machine. (two) background technology: [0002] At present, the building drum with drum shoulder used on the tire building machine, such as the tire building machine building drum with the patent number of 200620083428.8, is the most representative. On the hollow main shaft, driven by the screw nut transmission pair inside the hollow main shaft, the wide and narrow drum tile shrink mechanisms are sequentially expanded and contracted, so that the wide and narrow drum tiles expand asynchronously in the radial direction to the largest diameter and shrink to the smallest diameter , to meet the process requirements. At the same time, the wide and narrow drum tile retraction mechanism also includes the wide and narrow drum tile drum shoulder expansion and contraction devices linked with the wide and narrow drum tile retraction ...

AI Technical Summary

Problems solved by technology

[0005] However, the improvement still has the problems of complex structure, low strength of the telescopic part of the tile drum shoulder, low reliability, and inconvenient operation, manufacture and installation.

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