Hot air oven with air channel conversion function

Abstract

A hot air oven with air channel conversion function, comprising a pair of air channel boxes, which are equipped with a hot air inlet channel door and also constitute a hot air inlet channel and a return air channel, and the upper part of the air channel dividing plate is separated by The hot air upper air inlet communicated with the hot air inlet, the lower part is provided with the hot air lower air inlet connected with the hot air inlet, the return air duct has an upper return air device, and the return air duct has a lower return air device, corresponding to The position of the hot air upper air inlet is provided with an upper damper, and the position corresponding to the position of the hot air lower air inlet is provided with a lower damper; between the lower parts of the air duct boxes; the hot air generating mechanism is located between the tops of a pair of air duct boxes and communicates with the hot air inlet duct and the return air duct; features: it also includes an air duct conversion control mechanism, which is located in a On the air duct box and connected with the upper air door and the lower air door. Guarantee the mutual bonding effect of fibers.

Description

technical field [0001] The invention belongs to the technical field of non-woven machinery, and in particular relates to a hot air oven with an air channel conversion function. Background technique [0002] The hot air oven is one of the indispensable equipment in the complete hot air non-woven product production system or production line. The function of the hot air oven is to make the high-temperature hot air penetrate the non-woven fabric layer or the cotton net layer, so that the synthetic fiber shows a glass state, a high elastic state, a softened state and a molten state when heated, and finally makes the low-melting point fiber and / or synthetic fiber Bond each other and cool and shape naturally in a hot air oven. In this regard, you can refer to the following patent documents without limitation: CN201428045Y (hot air penetration oven), CN202292956U (a hot air penetration cooling shaping oven), CN201537998U (circulation hot air oven), CN201081519Y (circulation hot air...

AI Technical Summary

Problems solved by technology

However, some non-woven products, such as felt pads used as automotive interior parts, have a large thickness, that is, a large grammage, and only one high-temperature hot air penetration from top to bottom is often not enough to achieve the full fiber coverage of the entire felt pad expected by the industry. At the ideal degree of bonding, if the hot air alternates several times from top to bottom and bottom to top, then the mutual bonding effect of the fibers of the felt mat can reach the extreme level

However, if the on-demand conversion between the upper air intake and the lower air outlet and the lower air intake and upper air outlet is to be satisfied, a reasonable structure must be provided to ensure it. There are technical inspirations for reference, and the technical solutions to be introduced below are generated under this background

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