Sieving feeding device

Abstract

The present patent discloses a sieving feeding device and relates to the field of plastic production. The sieving feeding device comprises a hopper, a discharge connector, a sorting pipe, a feeding pipe, and a feeding fan. The discharge connector sleeves the hopper, and an upper end of the discharge connector is fixedly connected to the hopper. A lower end of the hopper is inverted cone-shaped, and a discharge hole is formed in a sidewall of the lower end of the hopper. An equally spaced gap is formed between the hopper and the discharge connector. A cone-shaped sieve is fixed to an upper end of the sorting pipe, and the upper end of the sorting pipe is inserted into the discharge connector with an annular orifice formed between the sorting pipe and the discharge connector. A connecting sleeve is fixed to a lower end of the discharge connector, and further fixed to the sorting pipe with a waste material bin formed between the connecting sleeve and the sorting pipe. The feeding pipe communicates with the sorting pipe, and has one end connected to the feeding fan and the other end serving as a discharge orifice. The feeding fan further communicates with an air duct. The sieving feeding device is capable of sieving and cooling materials during feeding, thus allowing an improvement in production efficiency.

Description

technical field [0001] The invention relates to the field of plastic production, in particular to a screening and feeding device. Background technique [0002] At present, in the process of processing modified plastics, the modified plastics are often prepared into granular structures through extrusion equipment and extrusion dies. In order to ensure that the prepared plastic particles have uniform diameters and improve product quality Quality, the prepared plastic particles need to be screened and classified. [0003] Due to equipment limitations, the existing production process adopts the method of screening and separating the materials first, and then sending the materials to the next process, which increases the processing steps and reduces the efficiency. [0004] In addition, most of the existing screening devices pass through the vibrating screen to make the plastic particles pass through the screen. However, due to the high temperature of the freshly prepared plasti...

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Problems solved by technology

[0003] Due to equipment limitations, the existing production process adopts the method of screening and separating the materials first, and then sending the materials to the next process, which increases the processing steps and reduces the efficiency.

[0004] In addition, most of the existing screening devices pass through the vibrating screen to make the plastic particles pass through the screen. However, due to the high temperature of the freshly prepared plastic particles, in order to cool down the plastic particles, it is necessary to set up a fan to cool the plastic particles. Air-cooled, but due to the light weight of the plastic, it is easy to rise under the influence of the air flow, so that the plastic particles are not conducive to passing through the screen

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