Manufacture method for one-step foam molding of three-density sole
A foam molding and manufacturing method technology, applied in footwear, applications, household appliances, etc., can solve the problems of increasing labor costs, glue raw material costs and equipment costs, reducing production efficiency and product qualification rate, and low production efficiency. , to achieve the effect of saving glue raw materials and equipment, improving comfort and service life, and reducing energy consumption
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Embodiment 1
[0019] Embodiment 1 provides a manufacturing method for one-time foam molding of a three-density shoe outsole, which includes the following steps:
[0020] (1) High-elastic EVA raw materials are kneaded and molded at high temperature to obtain high-elastic EVA sheets;
[0021] (2), the EVA bridging raw material is kneaded and molded through airtight high temperature to obtain the EVA bridging sheet;
[0022] (3), kneading the rubber foam raw material through airtight high-temperature kneading to obtain a rubber foam sheet;
[0023] (4), described highly elastic EVA sheet layer, EVA bridging sheet layer and rubber foamed sheet layer are laminated successively by weight ratio 5:3:2 from top to bottom, obtain three-density foamed sheet layer;
[0024] (5), put the foam sheet obtained in step (4) into a metal mold that has been preheated to 140 degrees, set the steam temperature of the steam oil press to 150 degrees, the pressure is 150 tons, and the machine is hot pressed for 8-...
Embodiment 2
[0043] Embodiment 2 provides a manufacturing method for one-time foam molding of a three-density shoe outsole, which includes the following steps:
[0044] (1) High-elastic EVA raw materials are kneaded and molded at high temperature to obtain high-elastic EVA sheets;
[0045] (2), the EVA bridging raw material is kneaded and molded through airtight high temperature to obtain the EVA bridging sheet;
[0046] (3), kneading the rubber foam raw material through airtight high-temperature kneading to obtain a rubber foam sheet;
[0047] (4), described highly elastic EVA sheet layer, EVA bridging sheet layer and rubber foamed sheet layer are laminated successively by weight ratio 5:3:2 from top to bottom, obtain three-density foamed sheet layer;
[0048] (5), put the foam sheet obtained through step (4) into a metal mold that has been preheated to 145 degrees, set the steam temperature of the steam oil press to 157 degrees, the pressure is 150 tons, and the machine is hot pressed f...
Embodiment 3
[0066] Embodiment three provides a manufacturing method for one-time foam molding of a three-density shoe outsole, which includes the following steps:
[0067] (1) High-elastic EVA raw materials are kneaded and molded at high temperature to obtain high-elastic EVA sheets;
[0068] (2), the EVA bridging raw material is kneaded and molded through airtight high temperature to obtain the EVA bridging sheet;
[0069] (3), kneading the rubber foam raw material through airtight high-temperature kneading to obtain a rubber foam sheet;
[0070] (4), described highly elastic EVA sheet layer, EVA bridging sheet layer and rubber foamed sheet layer are laminated successively by weight ratio 5:3:2 from top to bottom, obtain three-density foamed sheet layer;
[0071] (5), put the foamed sheet obtained in step (4) into a metal mold that has been preheated to 150 degrees, set the steam temperature of the steam oil press to 165 degrees, the pressure is 150 tons, and the machine is hot pressed ...
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