Bi-directional temperature-controlling roller of open mill or calendaring machine

Abstract

The invention belongs to the field of roller structures of open mills or calendaring machines, and discloses a bi-directional temperature-controlling roller of an open mill or calendaring machine. The roller comprises a roller body, end covers which are installed at the two ends of the roller body and provided with track grooves and a plurality of temperature-controlling through holes formed in the roller body, and the temperature-controlling through holes are communicated through the track grooves of the end covers in a spaced mode to form two snake-shaped through holes. According to the roller, a medium flows bi-directionally and is fully distributed on the surface of the whole roller, therefore, uniform heating or cooling of the working surface of the roller body of the open mill or calendaring machine is guaranteed, the problems that the roller temperature difference is large, and temperature controlling is not uniform are solved, and the heating or cooling effect of the roller is improved; the quantity of the through holes is small, the structure is simple, and therefore it is guaranteed that the roller has the enough mechanical strength and rigidity; on the premise that the mechanical strength is guaranteed, the roller can control the flow of the medium by changing the pipe diameter of a liquid inlet pipe, the size of through holes and the size of a medium inlet and a medium outlet, and then the heating or cooling effect is influenced.

Description

technical field [0001] The invention relates to a roller structure of a mill or a calender, in particular to a bidirectional temperature-controlled roller of a mill or a calender. Background technique [0002] Calenders and mills are very important equipment in the production process of rubber and plastic products. In the production process, plastic products generally need to be heated for production, and rubber products usually need to be cooled for production. This requires heating and cooling of the rollers to maintain the uniformity of the roller temperature and ensure product quality; in different production processes, it is necessary to control the roller temperature to finally meet the precision requirements required by the product. Therefore, the working surface of the rollers of the calender and the mill requires temperature control during work. [0003] In the prior art, the temperature control method of the roller is mostly drilled or hollow; the drilled roller ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low mechanical strength and poor temperature control effect of the roller structure of the mill or calender in the prior art, the present invention provides a two-way temperature-controlled roller of the mill or calender

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