ATA Machinery (Guangzhou) Co,. Ltd.

Tape stretching line

Tape stretching line The tape stretching line serves for the production of stretched tapes made from PP (HDPE or mixtures of PP and HDPE only with special line version!!!) The granulated material is fed to the extruder via a mixing and dosing unit. In the extruder the material is melt, compressed and homogenized. The pressurized material flows through an adapter and the filter to the flat die. The film leaving the flat die is taken through a water quench where the temperature of the film is reduced for solidification of the material and to allow the further processing. The subsequent cutting bar cuts the film into tapes of equal width. The edge trimming device sucks the edge trims in on the central unit and feeds them to the grinder. Afterwards the cut edge trims are taken back to the extruder hopper. In the extruder the waste material is also melt for further processing. The holding unit running at a higher speed than the film haul-off ensures the right film tension necessary for the cutting operation. Between the central unit and the stretching unit the tapes are subject to a heat treatment in the hot air oven and stretched at the same time. The stretching forces are produced by the higher speed of the stretching unit. For obtaining a textile structure of the tapes they can be fibrillated by means of the needle roller of the fibrillator. Finally the tapes are wound up by winding heads each having a separate drive.
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ATA Machinery (Guangzhou) Co,. Ltd.
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