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Temperature difference compensation foaming furnace

A technology of temperature difference compensation and foaming furnace, which is applied in the field of vertical foaming furnace to achieve the effect of reducing thickness difference, improving pass rate and maintaining consistent expansion rate

Inactive Publication Date: 2016-05-04
JIANGSU RUNDA RUBBER & PLASTIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a foaming furnace for the above-mentioned prior art. By improving the heating setting, the uniformity and stability of the air supply temperature can be ensured, and the difference in the expansion rate of the colloid caused by the temperature difference in the PVC foaming process can be solved. Qualification rate of foamed products

Method used

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  • Temperature difference compensation foaming furnace

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 As shown, the temperature difference compensation foaming furnace in this embodiment includes a box body 1, and needle plates 2 are installed on the left and right sides of the box body 1, and the bubble generation area in the box body 1 is a high-temperature heating area, which is uniform along the horizontal width direction. Three sets of cooling components are arranged, and the cooling components are respectively arranged in three places on the left, middle and right of the box body. Each set of cooling components is composed of two aluminum finned cooling tubes 3; corresponding to the three sets of cooling components, three sets of mutually independent temperature compensation devices are installed (not shown in the figure), the temperature replenishing device performs heating operation according to the preset heati...

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Abstract

The invention relates to a temperature difference compensation foaming furnace. The temperature difference compensation foaming furnace comprises a box, multiple radiating assemblies are uniformly arranged in the horizontal width direction in a bubble generating region in the box, and each radiating assembly is composed of 2-3 aluminum fin radiating pipes; multiple temperature compensating devices independent of one another are arranged corresponding to the multiple radiating assemblies and conduct heating operation according to preset heating temperature. The foaming furnace can provide temperature difference compensation in the colloid foaming process and ensure that heating temperatures at the same horizontal position of colloid are the same, and the colloid is heated sufficiently; expansion rates of all positions of the colloid are kept consistent, the thickness difference is reduced, and the product yield is increased.

Description

technical field [0001] The invention belongs to a foaming furnace for foaming polymer materials, in particular to a vertical foaming furnace. Background technique [0002] In the production process of PVC foam leather, a foaming furnace will be used to foam PVC colloid. The foaming furnace uses high-temperature catalytic ADC foaming agent to activate and generate gas. The gas is used to generate a large number of small bubble holes inside the molten PVC glue. With the prolongation of time, the bubble holes gradually increase and the volume of the PVC colloid expands several times or even dozens of times, and then the cooling embossing process is used to form various PVC foam leathers. [0003] Foaming furnaces generally used in industrial production can be divided into vertical (floor type) and box type (off-the-ground type), and each manufacturer chooses to use them according to actual needs. As far as the vertical foaming furnace is concerned, due to its special internal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/34B29C44/60B29C35/02
CPCB29C44/3415B29C35/02B29C44/35B29C44/60
Inventor 刘小芳
Owner JIANGSU RUNDA RUBBER & PLASTIC MATERIALS CO LTD