Lifting heating rail door and energy-saving hot box of false twist texturing machine

By designing an arc-shaped heat-insulating covering structure and a multi-layer composite heat-insulating layer in the false twist texturing machine, as well as a lifting heating rail door and an energy-saving heating box, the problems of high energy consumption and uneven temperature in the heating box are solved. This achieves efficient heat preservation, precise temperature control, and low heat loss during opening and closing, thereby reducing the energy consumption and cost of chemical fiber production.

CN224325459UActive Publication Date: 2026-06-05ZHEJIANG JINGGONG INTELLIGENT TEXTILE MASCH CO LTD
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Patent Information

Application Number
CN202520798032.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-06-05
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

The existing false twist texturing machine's hot box suffers from high energy consumption, uneven temperature distribution, low heat utilization, and severe heat loss during the opening and closing of the hot rail door, resulting in a high proportion of energy consumption in chemical fiber production and affecting production costs and quality.

Method used

A lifting heating rail door and energy-saving hot box are designed. The arc-shaped insulation covering structure is precisely matched with the gap of the hot rail. Combined with a multi-layer composite insulation layer and an optimized lifting mechanism, the door is stably opened and closed through a linkage + elastic element structure to reduce heat loss. The heat box insulation performance is improved by using a mirror reflective film and an asbestos insulation layer.

Benefits of technology

Significantly reduces heat box energy consumption, improves temperature uniformity, reduces temperature drop per door opening, enhances operational safety, and reduces overall energy consumption by 55%-70%, adapting to production lines with different production capacity requirements.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a lifting heating rail door of a false twist texturing machine and an energy-saving hot box, aiming at the problems that the traditional hot box is high in energy consumption and large in heat loss, the lifting heating rail door adopts an arc-shaped heat preservation coating structure, the radius of curvature is R20010 + / -1mm, the gap between the lifting heating rail door and a hot rail is controlled to be 5-15mm, and the lifting heating rail door is matched with a structure of'connecting rods, elastic pieces and double fulcrums' to ensure stable opening and closing under a micro gap; the door body is provided with a multi-layer composite heat preservation structure and a mirror reflection film, and heat preservation and heat radiation utilization are enhanced. The energy-saving hot box adopts a modular vertical design, natural convection of a heating medium is utilized, and an asbestos insulating layer is arranged between a box body and a shell. Experiments show that energy consumption is reduced by 69% compared with a traditional hot box when the gap is 5 mm, operation is convenient, temperature uniformity is improved, the hot box is suitable for the chemical fiber false twist deformation process, and energy consumption and production cost are remarkably reduced.
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