Title:
EXTRUSION DIE FOR MOLDING PATTERNED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2024/070041
Kind Code:
A1
Abstract:
Provided is an extrusion die for molding a patterned product, the extrusion die being capable of continuously forming arbitrary uneven patterns on different surfaces of a product member having a hollow part. The extrusion die comprises: an upper die 10 having a mandrel 13 with an inside bearing part 15 for molding a hollow shape in a thermoplastic member; an intermediate die 20 having an outside bearing part 25 for molding an outer shape of the thermoplastic member; and a lower die 30 that supports the upper die via the intermediate die. The lower die comprises: a first lower die 31 having a first pattern forming tool 40A and a second pattern forming tool 40B; and a second lower die 37 that is connected to the first lower die to secure the second pattern forming tool. Each of the first pattern forming tool 40A and the second pattern forming tool 40B rotates along with movement of a product member 3 molded by the bearing parts. The first pattern forming tool 40A forms a pattern on at least one of opposing surfaces of the product member. The second pattern molding tool 40B forms a pattern on at least one of opposing surfaces different from the surface of the product member on which the pattern has been formed.
Inventors:
LIN PEIZHENG (JP)
Application Number:
PCT/JP2023/018931
Publication Date:
April 04, 2024
Filing Date:
May 22, 2023
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
International Classes:
B21C25/02
Domestic Patent References:
| WO2020184411A1 | 2020-09-17 |
Foreign References:
| JP2022045464A | 2022-03-22 | |||
| US20180207698A1 | 2018-07-26 | |||
| JP2003522647A | 2003-07-29 |
Attorney, Agent or Firm:
NAKAMOTO, Kikuhiko et al. (JP)
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