Mold clamping apparatus provided with forceful mold opening mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11890796
APP PUB NO 20210078228A1
SERIAL NO

16924111

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Importance

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Abstract

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In a mold clamping apparatus, a mold clamping mechanism is provided with a half nut, and a tie bar is provided with circumferential groove configured to meshed with the teeth of the half nut. A strong-force mold opening mechanism that opens molds at an initial stage of mold opening extends across a space separating a movable platen and the mold clamping mechanism and is connected to the movable platen and the mold clamping mechanism. The strong-force mold opening mechanism is set so as to have greater axial force and shorter stroke than those of a mold opening and closing mechanism. A control unit controls opening and closing of the half nut, controls the strong-force mold opening mechanism and controls the position of the half nut in such a way that the half nut is synchronized with the circumferential groove by the strong-force mold opening mechanism.

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Patent Owner(s)

Patent OwnerAddress
NISSEI PLASTIC INDUSTRIAL CO LTD2110 OAZA MINAMIJO SAKAKI-MACHI HANISHINA-GUN NAGANO-KEN 389-0693

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoshino, Satoshi Nagano-ken, JP 17 251
Murata, Atsushi Nagano-ken, JP 69 337
Yoda, Hozumi Nagano-ken, JP 18 14

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