Patent ID: 9162787
Filing Date: 2015-10-20
Classification: B65B,F24H

Abstract:
1. A tangential airstream heat shrinking device of plastic film, comprising: a chassis; at least a heating chamber, which is mounted on the chassis, a heating channel being arranged under the heating chamber to allow a film-packaged article to pass, the heating chamber having a top wall in which a plurality of mounting holes and a high-temperature air collection section are formed; a plurality of air blowers, which is mounted to a bottom of the chassis, the air blowers each comprising an air inlet opening and an air outlet opening and functioning to pressurize air drawn in through the air inlet opening for discharging through the air outlet opening, the air inlet opening of each of the air blowers being connected through a collection pipe to the high-temperature air collection section of the heating chamber; and a plurality of high-temperature airstream ejectors, wherein each of the airstream ejectors is respectively fit into each of the mounting holes of the heating chamber and each of the airstream ejectors is rotatable, either clockwise or counterclockwise, along a circumferential track of the mounting hole, each of the high-temperature airstream ejectors having an upper end forming an intake opening, the intake opening being connected through a connection tube to the air outlet opening of the respective air blower in order to supply the air pressurized by the air blower to the airstream ejector for heating, the high-temperature airstream ejector having a lower end forming a high-temperature airstream discharging opening, at least two of the high-temperature airstream discharging openings being located at opposite sides of the heating channel of the heating chamber, the high-temperature airstream discharging opening of each of the high-temperature airstream ejectors having a high-temperature airstreams discharging route located on a different tangential route of a circumference of a film-packaged article.