A calender with improved structure

Abstract

The present invention relates to the technical field of calenders, in particular to a calender with improved structure, which includes a frame and a calender roller, the calender roller is connected to the frame, and the calender roller includes a top roller and a calender roller. Bottom roll, the calender also includes a gap adjustment system for adjusting the gap between the top roll and the bottom roll and a double power device, the double power device drives and connects the calender roll, the The roll gap adjustment system includes a PLC control system and a hydraulic station, the hydraulic station is connected with the calender roll, and the PLC control system is electrically connected with the hydraulic station. The invention can make the joint of the paper web pass through the nip of the calender roller automatically, reduces the manual link of manual operation, reduces the labor intensity, has a high degree of automation, high production efficiency, and effectively improves the calendering effect of the paper web. The quality of the rolled paper web is good, and the smoothness of the paper web is much higher than the standard of high-grade products stipulated by the national GB / T16797-2008.

Description

technical field [0001] The invention relates to the technical field of calenders, in particular to a calender with improved structure. Background technique [0002] At present, in the paper production line, the calender is the key equipment that ultimately determines the quality of paper and continuous production. When the calender in the prior art is threading the paper, if there is a joint in the paper web, the calender rolls cannot be separated and the joint is forced to be pressed. Because most of the joints are bonded by adhesive tape, the tape will The entanglement on the roll surface will lead to failure of normal production, and in severe cases, it will damage the equipment. In order to solve this problem, people have improved the structure of the calender so that the calender roll can be separated so that the paper web joint can pass through the calender smoothly. [0003] The Chinese Utility Model Patent No. 201020564635.1 discloses a heavy-pressure cardboard cale...

AI Technical Summary

Problems solved by technology

However, when the calender is manually adjusted to form a roll gap, the calender roll is lifted with high labor intensity, cumbersome operation, slow and unstable lifting speed, and manual operation is required after the roll gap is generated. There are potential safety hazards, time-consuming and labor-intensive, low degree of automation, and low production efficiency; and the power component of this calender is a motor connected to the top roll, and manual adjustment makes the top roll and bottom roll When the roll gap is formed, the top roll and the bottom roll are separated and their linear speeds are not consistent. After the paper web joint passes through the roll gap smoothly, the top roll and the bottom roll are rolled together. At this time, they are pressed between the top roll and the bottom roll Due to the inconsistent linear speed of the top roll and the bottom roll when the paper web is rolled together, the calendering effect of the paper web is poor, the quality of the product is poor, and it does not meet the production requirements, and even the stress distribution on the surface of the paper web is easy to be uneven, which is easy Causes paper breaks, also leads to failure of normal production and low operating efficiency

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