Polyurethane glue injection machine constant temperature system with cold water circulation system and regulation and control method thereof

By combining a cold water circulation system and an intelligent control unit, the problems of low precision, insufficient efficiency, and poor adaptability of the constant temperature system in polyurethane dispensing machines have been solved, achieving efficient and precise temperature control and energy optimization, thereby improving production efficiency and product quality.

CN122346194APending Publication Date: 2026-07-07BEIJING COMPOSITE MATERIALS CO LTD +1
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Patent Information

Application Number
CN202610310743.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-13
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing polyurethane dispensing machines have problems with low temperature control accuracy, insufficient cooling efficiency, high energy consumption, and poor adaptability. They are unable to cope with temperature fluctuations and changes in raw material properties during the production process, resulting in problems such as unstable raw material viscosity, large dispensing volume deviation, and equipment blockage.

Method used

The system employs a cold water circulation system, combined with high-precision temperature detection and intelligent control unit. Through the coordinated operation of the cold water circulation unit and the heating unit, it achieves high-precision constant temperature control of polyurethane raw materials. The cooling efficiency is improved by using a plate heat exchanger, and energy consumption is reduced and the system adaptability is enhanced through flow regulation and energy regulation optimization.

Benefits of technology

It achieves precise temperature control of polyurethane raw materials, with a constant temperature accuracy of ±0.1℃, reduces energy consumption by more than 30%, improves production continuity and product quality, and expands the application range of the equipment.

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Abstract

The invention discloses a polyurethane glue injection machine constant temperature system with a cold water circulation system and a regulation and control method thereof. The polyurethane glue injection machine constant temperature system comprises a glue injection machine body, a raw material storage tank, a constant temperature jacket, a cold water circulation unit, a heating unit, a temperature detection unit, a control unit and a heat preservation unit. The constant-temperature jacket is sleeved outside the raw material storage tank to form a circulating cavity; the cold water circulating unit forms a loop by a cold water tank, a circulating pump, a cooler and a flow regulating valve; the heating unit comprises an electric heating pipe and a temperature controller; the temperature detection unit monitors the temperatures of the raw material, the circulating medium and the cold water through three sensors respectively; the control unit adjusts operation parameters of each component according to the temperature signals; the heat preservation unit adopts thick rock wool to wrap a constant-temperature jacket. According to the constant-temperature system, accurate constant temperature of the raw materials is achieved through cold and hot dual regulation and control, high-precision constant-temperature control over the polyurethane raw materials in the glue injection process is achieved, the cooling efficiency is improved, energy consumption is reduced, meanwhile, the adaptability of the system is enhanced, and the forming quality of products is guaranteed.
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