Heat setting device of pillow core

Abstract

The invention discloses a heat setting device of a pillow core, which enables a pillow core which uses loose materials of blended fiber cotton as main raw materials to quickly realize heat setting of the whole pillow core, thereby greatly improving the elastic comfort, product quality and production efficiency of the pillow core. The device has obvious energy-saving effect. The device comprises aheating furnace, a roller type conveying belt, a hot air circulating system, a heat setting mold and a cold air cooling device, wherein the heating furnace comprises a middle furnace chamber, a left furnace chamber and a right furnace chamber; the middle furnace chamber is provided with the hot air circulating system in the vertical direction; the upper part and the lower part of the middle furnace chamber are respectively provided with a row of far-infrared heating pipes; the heat setting mold on which a plurality of ventilated through holes are distributed is placed on the conveying belt; the left furnace chamber and the right furnace chamber are respectively provided with multiple movable heat insulation doors which are mutually parallel and are vertically arranged; the cold air cooling device is arranged above the outlet of the right furnace chamber; and the heating furnace, the conveying belt, the hot air circulating system and the cold air cooling device are fully automatically controlled by a program controller and a temperature controller.

Description

technical field [0001] The invention relates to the technical field of pillow core production equipment, in particular to a pillow core heat-setting device. Background technique [0002] The Chinese Invention Patent Bulletin discloses a patent application document with a publication number of CN101507565A, wherein the shaped pillow core production equipment includes: several shaped molds, which are used to load the prepared pillow core raw materials and preliminarily shaped them. The cavity contour is the same as the outer contour shape of the pillow core. The thermal energy setting machine heats and shapes the raw material of the pillow core. Specifically, the thermal energy setting mechanism is an oven, which is heated by high voltage. The oven is equipped with a heating fan to make the temperature in the oven uniform. , A cooling fan is provided at the outlet of the oven. The above-mentioned production equipment has the following defects: the blended fiber cotton used as...

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Problems solved by technology

The above-mentioned production equipment has the following defects: the blended fiber cotton used as the pillow core raw material has a hot-melt forming temperature in the range of 130°C-170°C. When it is placed in a sealed shaping mold and heated and shaped in an oven, the oven It uses high-voltage heating to directly heat the air in the furnace, and the heat generated by induction heating the blended fiber cotton inside through the shaping mold to make it heat-set. The core material is a poor conductor of heat, so at this time, it is difficult for the external heat to sense the inner material of the pillow core, especially the middle of the pillow core, resulting in a large part of the blended fiber cotton loose material in the pillow core not reaching the melting temperature. Heat setting cannot be achieved, that is, the pillow core heat-set in this oven is a blended fiber cotton loose material that has been heat-set on the surface but is still not heat-melted and set inside. The elasticity, comfort and product quality of the finished pillow core have not get substantial improvement

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