Thin film extruding speed control device for plastic extruding and drawing machine

Abstract

The invention discloses a thin film extruding speed control device for a plastic extruding and drawing machine. The thin film extruding speed control device for the plastic extruding and drawing machine comprises a cooling water tank; a guide roller is mounted at the left upper end of the cooling water tank; a first supporting roller is arranged in the cooling water tank; a front mounting frame and a rear mounting frame are respectively arranged on the front side wall and the rear side wall of the upper end in the middle of the cooling water tank; each of the front mounting frame and the rearmounting frame is connected with a rotating shaft; each of the two rotating shafts is connected with a connecting mounting plate; a second supporting roller is mounted on the two connecting mounting plates; a first gear is mounted on a shaft body, positioned outside the cooling water tank, of the rotating shaft connected to the front mounting frame; a potentiometer is mounted on the front mountingframe; the potentiometer is electrically connected to a control frequency converter of a driving motor of a screw of the plastic extruding and drawing machine; a second gear is mounted on a rotatingadjusting shaft of the potentiometer; and the second gear is engaged with the first gear. According to the thin film extruding speed control device for the plastic extruding and drawing machine, the extruding speed of a thin film can be automatically adjusted and controlled so that the extruding speed of the thin film is kept consistent with the traction speed of a tractor.

Description

Technical field [0001] The invention relates to the technical field of weaving equipment, in particular to a film extrusion speed control device for a plastic extrusion wire drawing machine. Background technique [0002] After heating and extruding, the plastic particles are extruded into a film by a plastic extrusion drawing machine. The film is cooled in the cooling water, and is pulled by the tractor after coming out of the cooling water. Then it is cut by the blade, and the silk is collected by the silk tube. Get up and take the circular loom to weave the whole roll of woven bags, and then cut the whole roll of woven bags to get the woven bags we usually see. [0003] In order to ensure the quality of woven bags, the thickness of the film is required to be controlled within a certain range. The thickness of the film coming out of the die hole of the die of the plastic extrusion drawing machine is the same as the thickness of the die hole. The drawing speed of the tractor is th...

AI Technical Summary

Problems solved by technology

When the film comes out of the die hole of the head die of the plastic extrusion wire drawing machine, the thickness is the same as that of the die hole of the mold. The pulling speed of the tractor is the same as the speed of the plastic extrusion wire drawing machine to extrude the film. Plastic extrusion wire drawing The discharge end of the machine is equipped with a filter screen to filter the impurities in the plastic particles. As the production progresses, the filter screen will continue to be blocked, and the plastic extrusion and wire drawing machine will have uneven output, which will lead to plastic The speed of extruding the film from the extrusion wire drawing machine and the pulling speed of the tractor cannot be kept in sync; when the speed of the extrusion film of the plastic extrusion wire drawing machine is greater than the pulling speed of the tractor, the film is prone to problems such as adhesion before entering the cooling water; When the extrusion speed of the plastic extrusion wire drawing machine is lower than the traction speed of the tractor, the film will be stretched, making the thickness of the film thinner, which is not within the standard range, and product quality problems will occur

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