A particle dryer for injection molding

Abstract

The invention discloses a granule dryer for injection molding, which comprises a casing, a feeding hopper is arranged on the upper part of the casing, a rotatable and inclined drying cylinder is arranged on the upper part of the casing, and a partition is arranged below the drying cylinder. Plate; on the left side of the spin-drying cylinder, there is a pneumatic feeding pipe that is conveyed obliquely upward, and on the right side, there is a heating chamber. In the heating chamber, there are multi-layer flaps arranged staggered left and right; the bottom surface of the flap is equipped with a heating component , the lower part of the heating chamber is the discharge hopper; there is an air outlet on the top of the casing. Using this kind of particle dryer for injection molding, the moisture on the surface of a large amount of plastic particles can be separated by drying, and combined with the whole process of high-heat air drying and the layer-by-layer contact heating of the flap and arc-shaped guide seat, the drying effect can be ensured. The plastic granules dried by this kind of granule dryer for injection molding have low moisture content, and it is not easy to form pores in the injection molded parts of the product during injection molding, which can effectively improve product quality, increase yield, and increase revenue.

Description

technical field [0001] The invention relates to a drying machine, in particular to a particle drying machine for injection molding which has the functions of spin drying and air drying. Background technique [0002] Plastic particles need to be cleaned before injection molding to remove particles attached to the surface of plastic particles and improve the quality of plastic parts in the later stage. During the cleaning process, plastic particles are easy to absorb water, and at the same time, the surface of plastic particles has a strong adsorption effect, which is also It makes it difficult for moisture to escape, so the plastic particles after cleaning need to be dried, otherwise, the presence of water vapor will form pores in the injection molded parts formed by the injection molding operation, resulting in serious quality defects in the final product. The existing drying methods include natural drying and equipment drying. Natural drying is suitable for small workshops,...

AI Technical Summary

Problems solved by technology

[0002] Plastic particles need to be cleaned before injection molding to remove particles attached to the surface of plastic particles and improve the quality of plastic parts in the later stage. During the cleaning process, plastic particles are easy to absorb water, and at the same time, the surface of plastic particles has a strong adsorption effect, which is also It makes it difficult for moisture to escape, so the plastic particles after cleaning need to be dried, otherwise, the existence of water vapor will form pores in the injection molded parts formed by the injection molding operation, resulting in serious quality defects in the final product

The existing drying methods include natural drying and equipment drying. Natural drying is suitable for small workshops, and the drying efficiency is low

The existing drying equipment includes drying, air-drying and other processes, such as CN201721878909 a particle dryer for injection molding, but the existing plastic particle dryer does not have the function of drying, and a large amount of water only depends on drying, air-drying and other methods. The drying efficiency is obviously low, and it is not necessary, so it is necessary to invent a pellet dryer for injection molding that has the functions of drying and air drying and has a good drying effect.

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