Ironing machine drying drum heated by electromagnetic induction

Abstract

The invention relates to an ironing machine drying drum heated by electromagnetic induction, comprising an outer drum body, a rotating shaft, rotating wheels, an inner bracket and a stand. The ironing machine drying drum heated by electromagnetic induction is characterized in that one end of the outer drum body is provided with the rotating shaft, and the other end is opened; the outer edge of the periphery of the outer drum body is supported by at least three rotating wheels; the inner bracket extends from the opening of the outer drum body to the inside the outer drum body; the outer side of the inner bracket is fixed on the stand; a plurality of linear induction coils are fixed on the inner bracket and have the outer convex cambered surfaces coincided with the inner wall of the outer drum body and kept with a gap with the inner wall of the outer drum body; and the induction coils are connected with a high-frequency power supply. The ironing machine drying drum provided by the invention has the advantages of true realization of direct heating because the drying drum is heated by induction current, rapid heating, fine temperature control, high energy efficiency, simple structure of the drying drum and easiness for realization.

Description

technical field [0001] The invention relates to a ironing machine drying cylinder, in particular to an ironing machine drying cylinder heated by electromagnetic induction. Background technique [0002] Currently known electric heating dryer cylinders for ironing machines all use electric heating tubes to heat through a medium, and the medium mainly includes heat-conducting oil and air. [0003] Ironing machines using heat-conducting oil as the medium to heat the drying cylinder with electric heating tubes have the characteristics of uniform and continuous heat load, so they are widely used. However, it has many shortcomings. First, the huge heat capacity leads to a warm-up time of more than half an hour. Calculated on the basis of a drying cylinder with a diameter of 800 mm and a length of 2500 mm, the heat transfer oil capacity is more than 1000 liters. Second, the drying drum is heavy and the system is complicated. Both leak-proof and spill-proof. In addition, the hea...

AI Technical Summary

Problems solved by technology

Due to the extremely low thermal conductivity of the air, the temperature of the electric heating tube is not very high (for radiant heat transfer) and the radiative heat transfer is limited, so the serious problem of low heat transfer efficiency of this type will soon make it simple in structure and low in cost. Overwhelmed by advantages, the ironing machine using this technology often has low ironing speed (low production capacity) and the electric heating tube frequently trips due to overheating

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