Heating device for wire drawing machine metering pump

Abstract

The invention discloses a heating device for a wire drawing machine metering pump. The heating device comprises heating plates, electric heating wires and electric heating grooves; four heating plates are fixedly arranged at the periphery of a flowmeter, and one heating plate is fixed at each of the upper side and the lower side of the flowmeter; each heating plate is composed of the electric heating wires used for heat generation; the electric heating grooves are uniformly arranged on the inner surface of each heating plate vertically; heating wires are fixedly arranged in the electric heating grooves respectively; a sealing cushion is arranged at the externals of the corresponding electric heating wires; a cover plate is arranged at the external of each sealing cushion; one conductive column is fixedly arranged at each of the left part and the right part on the heating plate on the top of the flowmeter and is fixedly connected with the electric heating wires of the corresponding heating plate. By adopting the heating device for the wire drawing machine metering pump, the heating uniformity to the flowmeter is greatly improved, accurate control to polypropylene or polyethylene molten liquid is improved, and the extrusion rate of polyethylene or polypropylene flat fibers is increased.

Description

technical field [0001] The invention belongs to the technical field of heating of metering pumps of wire drawing machines, and in particular relates to a heating device of metering pumps of wire drawing machines. Background technique [0002] The container bag is a flexible transport bag, which is widely used in the packaging of various powdery, granular, and blocky items such as chemicals, building materials, plastics, and mineral products. It is an ideal product for warehousing, transportation, and other industries; Bags are usually made of polypropylene or polyethylene materials, which have broad application prospects. [0003] The production of polypropylene flat yarn is the process of putting polypropylene particles into the extruder, heating and melting, and extruding to form a film; polypropylene flat yarn has acid and alkali resistance, relatively small relative density, high strength and good heat resistance , The characteristics of convenient processing, widely us...

AI Technical Summary

Problems solved by technology

[0004] The polypropylene particles are heated by the hot melt machine to make the polypropylene raw material in a molten state. In actual production, the molten polypropylene liquid flows out of the hot melt machine and passes through the flow meter to enter the next step of the head film extrusion process. In the process of conveying the polypropylene liquid in this long hot state, the temperature of the polypropylene liquid in the hot state is easy to drop, which affects the measurement accuracy of the flowmeter, thereby affecting the accuracy of the automatic control of the entire wire drawing machine, and then Affect the quality of flat wire drawing and forming; in the current process, the electric heating rod is used to heat the flowmeter, and the main problem is that the heat emitted by the electric heating rod is not uniform enough, so that the molten polyethylene or The fluidity of the polypropylene liquid is not uniform enough, which affects the accuracy of the metering pump; the heating rod has a short service life and is easily damaged, which virtually increases the cost of production input; the inventor developed a A heating device for a metering pump of a wire drawing machine, which can well solve the problems existing in the prior art

Images