Drying apparatus for dyeing bobbins in the textile industry
AssigneeSiemens Aktiengesellschaft
InventorHans-Christian Grassmann
Life of this patent
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Abstract
An automatic drying apparatus for dyeing bobbins in the textile industry, in which the bobbins, slipped onto a perforated tube, are first predried with compressed air, followed by an intermediate drying operation of the bobbin surfaces with infrared heaters and final drying then performed capacitively in a high-frequency oven. The tube with the bobbins thereon is transported through the apparatus as a unit by a transporting device.
Claims6
In drying apparatus for dyeing bobbins of the kind used in the textile industry and which are dyed in a process in which a plurality of bobbins are simultaneously slipped onto a perforated tube, through which the liquid dyeing agent is forced into and through the thread or yarn wound on the bobbin core for dyeing, said apparatus including:
- (a) a mechanical predrying device for the bobbins;
- and
- (b) a high frequency oven into which hot air can also be blown, the improvement comprising:
- (c) the predrying station including means for blowing compressed air into the tube with bobbins slipped thereon;
- (d) an intermediate drying station following thereafter for drying off the surfaces of the dyeing bobbins slipped onto the tube;
- (e) a final drying station following thereafter including the high frequency oven for the capacitive final drying of the bobbins on the tube;
- and
- (f) a transporting device for the automatic transport of the dyeing bobbins slipped onto the tube through the individual stations and including, at least in the region of the high-frequency oven, means for rotating the tube with the bobbins about its longitudinal axis.
Dependencies are inferred from the claim text.