Mold, mold clamping device, injection molding machine, and molding method for molded article
AssigneeThe Japan Steel Works, Ltd.
InventorsKiyotaka NAKAYAMA, Akihiro NAITO, Takashi UEMURA, Koji MATSUZAKI, Ryuki SAKAMOTO, Shoso NISHIDA
Life of this patent
Estimating the term…
Abstract
A mold includes a guide pin configured to guide mold closing. The guide pin is housed in a guide pin housing hole formed in a parting line and is configured to be driven by a predetermined drive mechanism. The guide pin is configured to protrude its tip end from the parting line and to retract into the guide pin housing hole by the drive mechanism.
Claims11
A mold comprising:
- a guide pin configured to guide mold closing,
- wherein the guide pin is housed in a guide pin housing hole formed in a parting line and is configured to be driven by a predetermined drive mechanism, and
- wherein the guide pin is configured to protrude its tip end from the parting line and to retract into the guide pin housing hole by the drive mechanism.
A mold clamping device comprising:
- a fixed platen;
- and
- a movable platen configured to move forward and rearward with respect to the fixed platen,
- wherein the fixed platen and the movable platen are provided with a pair of molds,
- wherein the mold has a guide pin configured to guide mold closing,
- wherein the guide pin is housed in a guide pin housing hole formed in a parting line and is configured to be driven by a predetermined drive mechanism, and
- wherein the guide pin is configured to protrude its tip end from the parting line and to retract into the guide pin housing hole by the drive mechanism.
An injection molding machine comprising:
- an injection device;
- and
- a mold clamping device,
- wherein the mold clamping device comprises:
- a fixed platen, and
- a movable platen configured to move forward and rearward with respect to the fixed platen,
- wherein the fixed platen and the movable platen are provided with a pair of molds,
- wherein the mold has a guide pin configured to guide mold closing,
- wherein the guide pin is housed in a guide pin housing hole formed in a parting line and is configured to be driven by a predetermined drive mechanism, and
- wherein the guide pin is configured to protrude its tip end from the parting line and to retract into the guide pin housing hole by the drive mechanism.
A molding method for a molded article that molds a molded article by using a first mold having a first concave portion for housing a first half molded article, a second mold having a second concave portion for housing a second half molded article, and a heater,
- the first mold having a guide pin housing hole in a parting line, the guide pin housing hole being provided with a guide pin configured to be driven by a predetermined drive mechanism,
- the molding method comprising:
- opening the first mold and the second mold;
- retracting the guide pin to the guide pin housing hole by the drive mechanism;
- inserting a first half molded article and a second half molded article into the first concave portion and the second concave portion, respectively;
- inserting the heater between the first half molded article and the second half molded article to heat and melt end surfaces of the first half molded article and the second half molded article in a non-contact manner;
- retracting the heater;
- advancing the guide pin by the drive mechanism to protrude a tip end of the guide pin from the parting line;
- and
- clamping the first mold and the second mold to pressure-weld the end surfaces of the first and second half molded articles to each other to obtain a molded article.
Dependencies are inferred from the claim text.