High-precision intermittent material sending machine

Abstract

The invention relates to a high-precision intermittent material sending machine, and belongs to mechanical equipment for manufacturing plastic foam. The high-precision intermittent material sending machine provided by the invention is characterized by being provided with a second ventilation plate, a second rib plate, reverse scrapers and reverse scraper bases, wherein the second ventilation plate and the second rib plate are both parallelly positioned below a first ventilation plate and a first rib plate, and the second ventilation plate is provided with a second ventilation groove; the second ventilation groove is a through groove and is regularly reduced from the external center on the diameter direction, the two reverse scrapers are respectively obliquely fixed on the left and right sides of the reverse scraper bases in a reversal manner, and the two reverse scrapers are of a plate-shaped structure, are arranged on the same horizon line and are positioned on the centre epinastic position of an agitator shaft in a material sending barrel body; and the reverse scraper bases are fixed on the agitator shaft and can rotate along the rotation of the agitator shaft. The high precision intermittent material sending machine provided by the invention has the advantages that the whole structure design is reasonable, the use is convenient and reliable, the precision is high, the size distribution of steam air input is uniform, the heating of a raw material is uniform, and the error of material sending weight is small.

Description

technical field [0001] The invention relates to a feeding machine, in particular to a high-precision intermittent foam feeding machine which uses polystyrene as a raw material to produce plastic foam, which belongs to a kind of mechanical equipment for manufacturing plastic foam. Background technique [0002] The intermittent foam feeding machine is mainly used to produce plastic foam. In the plastic foam production process, the plastic foam raw material can be foamed once or multiple times according to the demand of the product, so as to obtain products with different expansion rates. [0003] In the prior art, while the foam material evaporates at the bottom of the barrel, when the two scrapers at the bottom of the main shaft and the stirring rod on the main shaft rotate, some of the material will fly to the upper part of the barrel because of the slow rotation. Particle beads are easy to break, so some materials that need to be sent to the specified ratio will not meet th...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a high-precision intermittent feeding machine with a reasonable structural design, which can reduce the grammage error of raw materials and make the steam intake volume evenly distributed, so as to solve the problem. The problem of excessive flying of the raw materials in the barrel of the feeding machine during the feeding process makes it get the supplemental evaporation of steam for the second time, thereby improving the overall performance of the foam feeding machine; at the same time, it also makes the raw materials heated evenly and ensures The sending machine can quickly and evenly obtain the average supply of steam during the sending process

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