An apparatus for simultaneously manufacturing a plurality of plastic molds comprises:an injection molding tool comprising a first and second molding tool halves anda gripper tool comprising a plurality of gripper members to which suction can be applied. The first and second molding tool halves are movable into the closed position and into an open position.

A front surface of the first molding members comprises recesses to allow the formation of pins projecting from the rear surface the plastic mold into the recesses to make the plastic molds adhere to the first molding members. The gripper tool is movably arranged only in a direction parallel to the first surface into the space formed between the first and second surfaces for transferring the plastic molds to the gripper members and out of this space again.

An injection molding system includes a sensor that detects a state of a purged molding material, and a purged material analysis unit that obtains a detection signal of the sensor and analyzes the purged molding material. Whether or not the purge operation is completed is determined based on the detection signal of the sensor so as to complete the purge operation. The purge operation is thus allowed to be completed with a minimum purge amount.

An injection molding system includes a sensor that detects a state of a purged molding material, and a purged material analysis unit that obtains a detection signal of the sensor and analyzes the purged molding material. Whether or not the purge operation is completed is determined based on the detection signal of the sensor so as to complete the purge operation. The purge operation is thus allowed to be completed with a minimum purge amount.

An injection molding system is equipped with a mold having a plurality of cavities, an injection device for injecting a molding material, and a controller for controlling the injection device to mold a plurality of molded parts. The controller includes a determining unit for determining quality of the plurality of molded parts molded at the plurality of cavities. Further, the controller includes a control unit for failure for preventing, when a molded part is judged to be defective, injection to a cavity used for the molded part judged to be good.

An injection apparatus to mold a combined member with excellent performance to a constant-velocity joint boot to seal constant-velocity universal joints. The constant-velocity universal joints are used for smooth operation of a drive shaft which transfers driving power from a differential gear of a vehicle to a hub on which a tire is mounted. An injection method of the combined member of the constant-velocity joint boot. A constant-velocity joint boot manufactured by the injection method of the combined member.

Extractor systems for extracting a flexible article of manufacture from a mold include an extraction roller, at least one track configured to support the extraction roller, and a trolley configured to carry the extraction roller from a first side of the mold toward a second, opposite side of the mold. Molding systems include a mold and an extractor system. Methods of extracting a flexible article of manufacture from a mold include separating a first platen and a second platen, positioning an extraction roller between the separated first and second platens, engaging the article of manufacture with a row of teeth positioned along the extraction roller, and rotating the extraction roller to wrap the article of manufacture about the extraction roller.

Extractor systems for extracting a flexible article of manufacture from a mold include an extraction roller, at least one track configured to support the extraction roller, and a trolley configured to carry the extraction roller from a first side of the mold toward a second, opposite side of the mold. Molding systems include a mold and an extractor system. Methods of extracting a flexible article of manufacture from a mold include separating a first platen and a second platen, positioning an extraction roller between the separated first and second platens, engaging the article of manufacture with a row of teeth positioned along the extraction roller, and rotating the extraction roller to wrap the article of manufacture about the extraction roller.

A work holding mechanism includes a body part having a three-dimensional shape including at least a recess or a protrusion, and an adsorption part for holding a work by adsorbing the work onto the body part in conformity to the three-dimensional shape of the recess or the protrusion provided in the body part. The work is held by being adsorbed in conformity to the three-dimensional shape of the body part, and, therefore, the amount of usage of the work in a work molding system can be reduced as compared with when the work is held so as to have a flat shape.

A work holding mechanism includes a body part having a three-dimensional shape including at least a recess or a protrusion, and an adsorption part for holding a work by adsorbing the work onto the body part in conformity to the three-dimensional shape of the recess or the protrusion provided in the body part. The work is held by being adsorbed in conformity to the three-dimensional shape of the body part, and, therefore, the amount of usage of the work in a work molding system can be reduced as compared with when the work is held so as to have a flat shape.

An apparatus for taking out a molded product is provided, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of each of one or more approach frames by active control using one or more electromagnetic actuators. The apparatus includes an active vibration suppressing system. One or more electromagnetic actuators are mounted to the attachment of each approach frame or each approach frame.