A production process of PVC calendering film

By employing multi-stage cooling rollers and a precise temperature control system in PVC calendering film production, the problem of unqualified finished products caused by improper cooling temperature has been solved, achieving more efficient cooling and reduced energy consumption.

CN117103543BActive Publication Date: 2026-05-29JIANGSU RUIYIYANG MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202311057632.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-21
Publication Date
2026-05-29
Estimated Expiration
2043-08-21

AI Technical Summary

Technical Problem

In the current production of PVC calendered film, improper control of cooling temperature leads to finished products that do not meet standards, and existing technologies are insufficient to effectively reduce the probability of non-compliance.

Method used

The system employs primary, secondary, and tertiary cooling rollers, combined with a temperature measurement module, temperature control module, cooling module, and notification module. It adjusts the temperature of the cooling rollers through detection and differential calculation, and achieves precise control of the liquid temperature through a temperature adjustment device and a reflux pipe.

Benefits of technology

It effectively reduces the probability of PVC calendered film failing to meet requirements, improves cooling effect, and reduces energy consumption.

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Abstract

The application relates to a PVC calendering film production process and belongs to the technical field of PVC calendering films. The process comprises the steps of feeding, extruding, forming, cooling, edge cutting and winding. In the cooling step, a first-stage cooling roller, a second-stage cooling roller and a third-stage cooling roller are arranged, the cooling temperatures of the first-stage cooling roller, the second-stage cooling roller and the third-stage cooling roller are sequentially reduced, and a control system is arranged in the cooling step. The control system comprises a temperature measuring module, a temperature control module, a temperature reducing module and a notification module. The temperature measuring module is used for detecting the temperature of the first-stage cooling roller and sending the temperature to the temperature reducing module. After receiving the temperature sent by the temperature measuring module, the temperature reducing module performs difference operation to obtain the corresponding temperatures of the second-stage cooling roller and the third-stage cooling roller and sends the temperatures to the temperature control module. The temperature control module adjusts the temperatures of the second-stage cooling roller and the third-stage cooling roller according to the temperatures. The application has the advantages that the temperatures of the cooling rollers can be controlled, and the probability that the produced PVC calendering film does not meet the requirements is reduced.
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