US 10,926,438 B2 · Production method of mold having recessed pedestal pattern, and manufacturing method of pattern sheet

Abstract

Provided are a production method of a mold having a recessed pedestal pattern for preventing a liquid flow and a manufacturing method of a pattern sheet. A production method of a mold having a recessed pedestal pattern, has: a step of preparing an insert mold having a protruding needle pattern group; a step of preparing a mold having a first mold provided with a protruding pedestal shape and a second mold; a holding step of holding the protruding pedestal shape of the first mold and the protruding needle pattern group of the insert mold in an overlapping manner; a clamping step of performing clamping with the first mold and the second mold to form a cavity; and an injection step of filling the cavity with a resin.

Claims11

Dependent claims

A production method of a mold having a recessed pedestal pattern, comprising:

a step of preparing an insert mold having a protruding needle pattern group;
a step of preparing a mold having a first mold provided with a protruding pedestal shape and a second mold;
a holding step of holding the protruding pedestal shape of the first mold and the protruding needle pattern group of the insert mold in an overlapping manner;
a clamping step of performing clamping with the first mold and the second mold to form a cavity;
and
an injection step of filling the cavity with a resin,
wherein in the injection step, the insert mold is deformed following the protruding pedestal shape of the first mold to form a protruding pedestal shape having a recess on a rear surface of the insert mold.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/026,286Filed 20 Sep 2020 · continuation

Priority

JP JP2018-06059827 Mar 2018

Published

US 2021/0001516 A17 Jan 2021

Granted

23 Feb 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification32 codes

B29C 33/405
Plastics, e.g. foam or rubber: elastomers, e.g. rubber
B29C 45/1418
Incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles: the inserts being deformed or preformed,…
B29C 33/3842
Characterised by the material or the manufacturing process: manufacturing moulds, e.g. shaping the mould surface by machining
B29C 33/3857
Manufacturing moulds, e.g. shaping the mould surface by machining: by making impressions of one or more parts of models, e.g. shaped articles and…

Production method of mold having recessed pedestal pattern, and manufacturing method of pattern sheet

Life of this patent

Production method of mold having recessed pedestal pattern, and manufacturing method of pattern sheet

Life of this patent

Abstract

Claims11