Mold for molding a case of a mobile device and molding method for manufacturing a case of a mobile device

Patent metadata

Field	Value
Publication number	US-9827607-B2
Application number	US-201514718224-A
Country	US
Kind code	B2
Filing date	May 21, 2015
Priority date	May 21, 2015
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A mold for molding a case of a mobile device includes a first, second, third, fourth and fifth main body, connection slide blocks, and first and second abutment slide blocks. The connection slide blocks and the second abutment slide blocks are inlaid in first and second slide channels of the first and second main bodies. The first abutment slide blocks are inlaid in channels of the connection slide blocks. The third, fourth and fifth main bodies are horizontally movable relative to the first and second main bodies. The first and second main bodies, the connection slide blocks and the first and second abutment slide blocks together define a male mold section and the third, fourth and fifth main bodies together define a female mold section. A metal thin sheet is placed on the male mold section and pressurized and molded by the female mold section to form the case.

First claim

What is claimed is:

1. A molding method for manufacturing a case of a mobile device, comprising steps of:
providing a mold for molding a case of a mobile device and a metal thin sheet,
wherein the mold for molding the case of the mobile device, comprises:
a first main body having an upper side and a lower side, a periphery of the first main body having multiple first slide channels;
a second main body correspondingly disposed under a lower side of the first main body, multiple second slide channels being formed on four corners of the second main body and correspondingly extending to four corners of the first main body;
multiple connection slide blocks respectively correspondingly inlaid in the second slide channels and slidable relative to the first and second main bodies, each connection slide block having a channel;
a third main body correspondingly disposed on right side of the first main body and horizontally movable relative to the first main body, the third main body having a first arched recess on one side adjacent to the first main body;
a fourth main body correspondingly disposed on left side of the first main body and horizontally movable relative to the first main body, the fourth main body having a second arched recess on one side adjacent to the first main body;
a fifth main body correspondingly disposed on front side of the first main body and horizontally movable relative to the first main body, the fifth main body having a third arched recess on one side adjacent to the first main body;
multiple first abutment slide blocks respectively correspondingly inlaid in the channels and slidable relative to the first and second main bodies; and
multiple second abutment slide blocks respectively correspondingly inlaid in the first slide channels, the first and second main bodies and the connection slide blocks and the first and second abutment slide blocks together defining a male mold section, the third, fourth and fifth main bodies together defining a female mold section, the male and female mold sections being connectable with each other to form a mold cavity;

placing the metal thin sheet on upper side of the male mold section;
forcedly mating the female mold section with the male mold section to shape the metal thin sheet into a configuration identical to that of the mold cavity; forcedly separating the female mold section from the male mold section to demold the material;
moving the first abutment slide blocks and the connection slide blocks of the male mold section in a direction away from the metal thin sheet to demold the metal thin sheet;
moving the second abutment slide blocks of the male mold section in a direction away from the metal thin sheet and removing the second abutment slide blocks so as to completely demold the shaped case of the mobile device; and
completing the molding process.

2. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein in the demolding process, the connection slide blocks are first moved in a direction away from the metal thin sheet and then the first abutment slide blocks are moved in a direction away from the metal thin sheet.

3. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein the molding apparatus is configured to perform a punching process and the pressure source for the punching process is a pneumatic pressure source or a hydraulic pressure source.

4. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein the molding process is cold forging processing process.

5. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein each connection slide block has the form of a rectangular triangular hexahedron body.

6. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein the first main body is a trapezoid hexahedron body.

7. The molding method for manufacturing a case of a mobile device as claimed in claim 1 , wherein each first abutment slide block has an abutment section and an insertion section respectively disposed on outer edge and inner edge of the first abutment slide block, the insertion section having a restriction protrusion block near bottom side of the first abutment slide block, the abutment section on outer edge of the first abutment slide block having the form of a convex face, the second abutment slide blocks being respectively correspondingly inlaid in the first slide channels of the first main body, each second abutment slide block having an abutment section and an insertion slide section respectively disposed on outer edge and inner edge of the second abutment slide block, the insertion slide section having a restriction protrusion section near bottom side of the second abutment slide block, the abutment section on outer edge of the second abutment slide block having the form of a convex face, the abutment sections of the first and second abutment slide blocks corresponding to the first, second and third arched recesses of the third, fourth and fifth main bodies.

Assignees

• Aisa Vital Components Co Ltd
• Asia Vital Components Co Ltd

Inventors

• Lin Kuo-Sheng
• Shi Fei-Fei

Classifications

• B21J5/06 Primary

  for performing particular operations · CPC title

• B21K1/76

  elements not mentioned in one of the preceding groups · CPC title

• B21J13/025

  Dies with parts moving along auxiliary lateral directions · CPC title

• B21D51/52

  boxes, cigarette cases, or the like · CPC title

• B21D22/06

  having relatively-movable die parts · CPC title