A hot press molding system for foamed products

Abstract

The invention discloses a hot press molding system for a foamed product. The hot press molding system comprises an upper mold base, a lower mold base, an upper mold, a lower mold and a cold and hot circulating system, wherein the upper mold is mounted on the upper mold base and the lower mold is mounted on the lower mold base; a heat transferring channel through which a heat transferring medium of the cold and hot circulating system flows is formed on each of the upper mold base, the lower mold base, the upper mold and the lower mold; and the cold and hot circulating system is used for carrying out heat transferring on the upper mold base, the lower mold base, the upper mold and the lower mold through at least three heat transferring media with different temperatures respectively in a specific time period. According to the hot press molding system for the foamed product, comprehensive heating and cooling on the product can be guaranteed by cold and hot circulation; the heat transferring media are used for transferring heat so that the cost of equipment is saved; and stress generated on the molds and the mold bases can be effectively reduced by the ladder heating and cooling so that the service lives of the molds and the mold bases are prolonged and the cost of enterprises is saved.

Description

technical field [0001] The invention belongs to the technical field of production equipment for foamed products, in particular to a thermal press molding system for foamed products. Background technique [0002] Thermoforming is a special plastic processing method for processing thermoplastic (see thermoplastic resin) sheets into various products. The sheet is clamped on the frame and heated to a softened state. Under the action of external force, it is pressed against the surface of the mold to obtain a shape similar to the surface. After cooling and shaping, it is trimmed and finished. Among them, the thermoforming of the mold is to place the heat-softened sheet between the paired female and male molds, and form it with the help of mechanical pressure. This method has a higher molding pressure and can be used to manufacture products with complex shapes, but the cost of the mold is higher. [0003] The mold is a key part of the mold-to-die thermoforming technology, and t...

AI Technical Summary

Problems solved by technology

This method has a higher molding pressure and can be used to manufacture products with complex shapes, but the cost of the mold is higher

[0003] The mold is a key part of the mold-to-die thermoforming technology, and the cold and hot forming technology is also particularly critical. The thermoforming equipment currently on the market does not handle the hot and cold forming in place, resulting in low quality products and frequent defective products. High; moreover, the cooling and heating equipment are set separately, and the separate equipment will inevitably increase the cost, which is not conducive to the cost control of the enterprise

[0004] When the mold is installed on the mold base, due to long-term hot and cold, it is easy to generate stress, resulting in deformation of the mold or the mold base, causing the position of the mold to not be stabilized, and deviation may occur, which will affect the production. damage mold

During the heating and cooling process of the product, the installation position of the heater or cooler is unreasonable, which may easily lead to uneven heating or cooling, resulting in poor product quality

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