Method and Mold Structure for Forming Eva
OwnerLawrence Chouinventor
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Abstract
A method for forming EVA comprises the steps of: injection-molding; mold-exchanging; thermosetting molding; product-taking out and mold-returning. An EVA-forming mold structure comprises a first mold assembly and a second mold assembly. The molds, at the same side of the first mold assembly and the second mold assembly, can be exchanged with each other. By such arrangements, after the two material members each with different material characteristics are, respectively, formed in two mold assemblies by injection molding, a thermosetting molding of the two material members will be performed in another mold assembly, thus forming an EVA product with two material characteristics.
Claims8
A method for forming EVA comprising the steps of:
- A. injection-molding:
- forming a first material member and a second material member, respectively, in a first upper mold of a first mold assembly and a second lower mold of a second mold assembly by injection molding, and the first material member is different from the second material member in material characteristic;
- B. mold-exchanging:
- exchanging the first upper mold of the first mold assembly with the second upper mold of the second mold assembly, closing the second upper mold of the second mold assembly and the first lower mold of the first mold assembly together, and closing the first upper mold of the first mold assembly and the second lower mold of the second mold assembly together, so as to enable the first material member of the first upper mold to be positioned against the second material member of the second lower mold;
- C. thermosetting-molding:
- heating the first material member and the second material member, so that the first material member and the second material member are melted and connected to each other and then solidified into an EVA product;
- and
- D. product-taking out and mold-returning:
- taking the EVA product out, and returning the two upper molds to their original positions by exchanging the first upper mold with the second upper mold again.
A method for forming EVA comprising the steps of:
- A. injection-molding:
- forming a first material member and a second material member, respectively, in an upper mold of a first mold assembly and a second lower mold of a second mold assembly by injection molding, and the first material member is different from the second material member in material characteristic.
- B. mold-exchanging:
- exchanging the first lower mold of the first mold assembly with the second lower mold of the second mold assembly, and closing the second upper mold of the second mold assembly onto the first lower mold of the first mold assembly, and closing the first upper mold of the first mold assembly onto the second lower mold of the second mold, so as to enable the first material member of the first upper mold to be positioned against the second material member of the second lower mold;
- C. thermosetting-molding:
- heating the first material member and the second material member, so that the first material member and the second material member are melted and connected to each other and then solidified into an EVA product;
- and
- D. product-taking out and mold-returning:
- taking the EVA product out, and returning the two lower molds to their original positions by exchanging the first lower mold with the second lower mold again.
Dependencies are inferred from the claim text.