Abstract

A method for preparing a shoe shell using a twice-opening-mold shoe-making mold comprises steps of preparing rubber for the shoe shell and cutting the rubber for the shoe shell into elongated or square sizes; heating the twice-opening-mold shoe-making mold to required temperatures within 3 hour; and opening the twice-opening-mold shoe-making mold with the bottom mold of the twice-opening-mold shoe-making mold being opened in a direction away from the mold main body of the twice-opening-mold shoe-making mold; putting the rubber for the shoe shell into the twice-opening-mold shoe-making mold; closing the bottom mold towards the mold main body, lifting the mold inner edge of the twice-opening-mold shoe-making mold to be stored into the mold main body until the bottom mold and the mold main body are closed, and performing a heating for 2-8 minutes; separating the bottom mold from the mold main body periodically during heating; reopening the twice-opening-mold shoe-making mold; taking out a semi-finished shoe shell; and trimming the semi-finished shoe shell.

IPC Classes  ?

• B29D 35/00 - Producing footwear
• B29D 35/12 - Producing parts thereof, e.g. soles, heels or uppers, by a moulding technique
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• A43B 1/10 - Footwear characterised by the material made of rubber
• A43B 7/12 - Special watertight footwear
• B29D 35/02 - Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting

Abstract

Disclosed are a method for preparing a shoe shell, and a twice opening-mold shoe-making mold. The twice opening-mold shoe-making mold comprises a machine table (1), a base mold (2) arranged on the machine table (1), an oil cylinder (3) arranged in the machine table (1) and connected to the base mold (2), and a mold main body (4) arranged above the base mold (2), a mold cavity (21) being provided in the upper surface of the base mold (2), and further comprises a mold inner core arranged in the mold main body (4), a mold inner edge (6) arranged below the mold inner core, an upper heating plate (7) arranged above the mold main body (4), a lower heating plate (8) arranged in the base mold (2), and a lifting mechanism (9) connected between the base mold (2) and the mold main body (4), wherein the mold inner edge (6) extends downwards from the interior of the mold main body (4) to the position below the mold main body (4), and the mold inner edge (6) is directly located above the base mold (2). The process during the whole procedure is greatly simplified, thereby improving the working efficiency. Moreover, the shoe shell prepared by means of the twice opening-mold shoe-making mold and obtained by using an integral forming process is sturdier and more durable, compared with a shoe shell obtained by means of a traditional shoe making process.

IPC Classes  ?

• B29D 35/02 - Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting

Abstract

Disclosed are a method for preparing a shoe shell, and a twice-opening-mold
shoe-making mold.
The mold includes a machine table, a bottom mold arranged on the machine
table, an oil cylinder
arranged in the machine table and connected to the bottom mold, and a mold
main body arranged
above the bottom mold, wherein a mold cavity is formed in an upper surface of
the bottom mold, a
mold inner core arranged in the mold main body, a mold inner edge arranged
below the mold inner
core, an upper heating plate arranged above the mold main body, a lower
heating plate arranged
under the bottom mold, and a lifting mechanism connected between the bottom
mold and the mold
main body. The mold inner edge extends downwards from the interior of the mold
main body to a
position below the mold main body and is directly located above the bottom
mold.

IPC Classes  ?

• B29D 35/02 - Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting