Air extracting device and method for inner tube

Abstract

An air extracting device for an inner tube comprises a rack, a pressing device, a screw driver, a tensioning mechanism and an air extraction pipe. The pressing device comprises a hanging table and a pressing head, the hanging table is arranged on the rack, the pressing head is arranged on the rack in an up-down moving mode, the pressing head is arranged above the hanging table, and the hanging table is provided with a positioning hole into which an inner tube inflating valve extends; the air extraction pipe is connected with the hanging table; the positioning hole communicates with the air extraction pipe; the screw driver is arranged under the hanging table, the upper end of the screw driver faces the lower end of the positioning hole, and the screw driver is arranged on the rack in an up-down moving mode; the tensioning mechanism is arranged under the hanging table and comprises a vertical base and a tensioning rod, and the tensioning rod is arranged on the vertical base in an up-down moving mode. According to the invention, the inner tube with a valve core can be exhausted and lengthened, and the deflation efficiency of the inner tube is improved. A plurality of air extracting devices can be arranged on the rotating frame, so that continuous production on a plurality of stations is realized.

Description

technical field [0001] The invention relates to the field of inner tube production equipment, in particular to an inner tube air extraction device and method. Background technique [0002] In the latter part of the inner tube production process, the inner tube needs to be tightened while pumping air, so that the volume of the inner tube shrinks and is convenient for packaging. There is a valve core on the valve of the inner tube, and the existing procedure needs to untie the valve core of the inner tube before pumping air, and then install the valve core after the pumping is completed, which is very inconvenient. Moreover, after the valve core is removed, the inner tube can no longer maintain its shape, and the shrinkage position is often irregular, resulting in partial distortion of the inner tube after pumping air, and it needs to be sorted before packaging. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned deficiency,...

AI Technical Summary

Problems solved by technology

There is a valve core on the valve of the inner tube. The existing process needs to untie the valve core of the inner tube before pumping air, and install the valve core after the pumping is completed, which is very inconvenient

Moreover, after the valve core is removed, the inner tube can no longer maintain its shape, and the shrinkage position is often irregular, resulting in partial distortion of the inner tube after pumping air, and it needs to be sorted before packaging

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