Air-uniformizing and thermoforming baking oven

Abstract

The invention relates to an air-uniformizing and thermoforming baking oven which comprises an oven body, a heater, a conveying chain plate, a suction hood, a reflux pipeline and a draught fan, wherein the bottom of the oven body is provided with an air uniformizing device which is composed of an air inlet pipe and an air uniformizing chamber; one end of the air inlet pipe is connected with the draught fan, and the other end of the air inlet pipe is connected with the air uniformizing chamber; the air uniformizing chamber comprises an end plate, two side plates and a bottom plate; the end plate is provided with an air inlet; the air inlet pipe is connected with the air inlet; multiple inclined air deflectors are arranged in the air uniformizing chamber; flow channels are respectively formed between the multiple air deflectors and the bottom plate and are connected with the air inlet; one ends of the multiple air deflectors are respectively connected with the end plate, and the other ends of the air deflectors are parallel to one another and are respectively provided with multiple air outlets. The air-uniformizing and thermoforming baking oven can be used for not only ensuring that air absorbs the same heat in the heater and thus the service life of the heater is prolonged, but also ensuring that fibers absorb the same quantity of heat and thus the fiber thermoforming degree is stabilized, and further ensuring the product quality consistency.

Description

technical field [0001] The invention relates to the field of spinning, in particular to a heat setting oven. Background technique [0002] In the chemical fiber industry, the fibers after post-spinning, drawing and crimping need to be heat-set in an oven to eliminate the internal stress of the fibers, improve the dimensional stability of the fibers, and further improve their physical and mechanical properties. Such as image 3 , Figure 4 The shown fiber 3 to be shaped is placed on the conveyor chain plate 4. The conveyor chain plate 4 is composed of a mesh plate. The motor drives the head roller to transport the fiber from one end of the oven to the other end. The conveyor chain plate 4 is installed below Heater 5, the bottom of the heater is the air inlet end, the wind comes in from the bottom and passes through the heater 5 and becomes hot air, because the conveyor chain plate 4 has mesh holes, so the hot air can penetrate the chain plate to heat the fibers to be shaped,...

AI Technical Summary

Problems solved by technology

But in this process, if image 3 , Figure 4 , because the air inlet end is only connected to the outlet flange of the fan, and it is only a square airtight structure. The upward direction of the wind after entering the oven from the air inlet end is relatively chaotic, and there is turbulent flow, resulting in different air volumes in different parts. It is difficult to achieve balance and stability, because the air volume passing through the heater 5 is inconsistent, and the heat taken away from the heater will also be different, resulting in inconsistent air temperature in various parts. As a result, the temperature of the heater itself is different, and the temperature is constantly changing from high to low, which may easily lead to the aging of the heater itself

In addition, the heat of the wind in each part is not the same, which leads to the different heat absorption of the fiber, which leads to the instability of the fiber setting and seriously affects the quality of the product.

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