Internal circulation hot gas heating device for vegetable fiber felt

Abstract

The invention relates to an internal circulation hot-air heater for vegetable fibrofelt. The internal circulation hot-air heater aims to solve the problems in the prior art of easy carbonization of surface fibers of the fibrofelt, nonuniform heat distribution, poor heat permeability, high energy consumption, trivial operation, easy generation of a fire disaster, low work efficiency, poor decoration quality and so on. The key points of the technical proposal of the internal circulation hot-air heater are as follows: the internal circulation hot-air heater is characterized by comprising a machine frame and a heating chamber, a heater, a fan, a blast pipe and a plurality of cylinders on the machine frame, wherein, the heating chamber consists of an upper heating chamber and a lower heating chamber which are closed or separated in the vertical direction; the inside of an upper opening of the lower heating chamber is provided with a supporting net for placement of the vegetable fibrofelt; the cylinders are respectively arranged on the machine frame; piston rods of the cylinders are respectively connected with the upper heating chamber and the lower heating chamber; the heater consists of a shell, a heating pipe in the shell, a recirculating air course and an upper air inlet and outlet on the recirculating air course; the blast pipe is arranged on a corresponding air inlet and outlet among the heating chamber, the heater and the fan to form a heated air circulation path; power supply ends of the heater and the fan are connected with a power supply; and air ports of the cylinders are connected with a pressure air source.

Description

technical field [0001] The invention belongs to a heating device, in particular to an internal circulation hot air heating device for heating vegetable fiber mats. It is suitable for heating and softening of plant-based fiber mats for automobile inner wall or floor substrate materials. Background technique [0002] Vegetable fiber felt is used in automotive interior parts, and it is a product with light specific gravity, energy saving and environmental friendliness. With the development of plant-based fiber manufacturing technology, the performance of plant-based fiber fabrics has been greatly improved, so people have used plant-based fiber mats to replace the substrate materials of the car interior walls or floors that commonly use chemical fiber mats. The plant-based fiber mat used as the substrate material for the inner wall or floor of the car needs to be heated and softened before it is decorated on the car, and then put into a mold and pressed into shape. As for the ...

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Problems solved by technology

[0003] In order to overcome the heating method in the prior art, it is easy to cause carbonization of the surface fiber of the vegetable fiber felt, uneven heating, poor thermal permeability, high energy consumption, troublesome operation, easy fire, unsafe factors, and low work efficiency , the defects of low decorative quality, the purpose of this invention is to provide an improved internal circulation hot air heating device for vegetable fiber mats, which can overcome the defects of the prior art

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