corrugated roll

Abstract

The invention provides corrugated paper rollers. Each roller body is internally provided with an induction heating device and internally provided with a first heat preservation layer, an induction coil and a second heat preservation layer in sequence from outside to inside. The second heat preservation layers are internally provided with electromagnetic controllers. The electromagnetic controllers are electrically connected with the induction coils. According to the corrugated paper rollers, the roller bodies are internally provided with the induction heating devices, heating capacity is made to be concentrated on the outer surfaces of the roller bodies, the heat loss is small, and utilization efficiency is high; besides, the corrugated paper rollers are compact in structure, and mounting and adjusting of the whole rollers are facilitated; the structure is high in temperature feedback, the temperature of all the rollers are adjusted conveniently and independently according to parameters of paper, and quality is guaranteed beneficially. By the adoption of the structure with the built-in induction heating devices, energy consumption is only 20%-30% that of steam energy consumption; the temperature of the surfaces of the roller bodies is balanced, and the service life of the roller bodies is prolonged; an optimally-designed roller tooth structure is adopted, and paper consumption can be reduced while the strength is enhanced.

Description

technical field [0001] The invention relates to the field of corrugated paper production, in particular to a corrugated paper roll. Background technique [0002] In the prior art, corrugated paper rollers are usually heated by steam, and the heating temperature is 150-180 degrees Celsius. The existing problem is high energy consumption. The actual heat used is only 20-30%, and a large amount of energy is wasted in the pipeline transportation process. . Chinese patent document CN202895782U provides an electromagnetic heating single-sided corrugating machine for producing single-sided corrugated cardboard, which adopts an external electromagnetic induction heating and is installed on the surface of corrugating rollers, preheating rollers and pressure rollers. [0003] The existing problems are: 1. The overall structure is relatively complicated, and it is easy to cause interference to the corrugated paper in operation. [0004] 2. Due to the external hanging structure, it ca...

AI Technical Summary

Problems solved by technology

[0003] The existing problems are: 1. The overall structure is relatively complicated, and it is easy to interfere with the corrugated paper in operation

[0004] 2. Due to the external structure, it can only affect part of the roller body, and the temperature difference with the room temperature is large, so that the temperature on the surface of the roller body is not uniform, and the surface temperature difference can reach 50~100 degrees Celsius

Usually, the surface of the roller body is made of high-hardness ceramic material, which will reduce the service life of the roller body under the condition of alternating temperature difference

[0005] The existing roller tooth structure has not yet been optimized, specifically, the optimal ratio between the strength of the finished corrugated cardboard and the paper consumption has not been reached

Images