Abstract

A molding apparatus provided with a transfer capable of transferring a heavy-weight mold clamping device. The molding apparatus that molds a molded product, includes: a mold clamping device clamping a parison extruded from an extruder to obtain a molded body, a transfer rail to support the mold clamping device in a transferable manner, and an electric cylinder to transfer the mold clamping device along the transfer rail. The mold clamping device includes first and second platens for holding a die, and a clamping drive unit for driving the first and second platens closer to or separated from each other, the electric cylinder includes a motor having an output shaft and a feed screw mechanism that converts the rotary motion of the output shaft into a linear motion.

IPC Classes  ?

• B29C 49/72 - Deflashing outside the mould
• B29C 31/00 - Handling, e.g. feeding of the material to be shaped
• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 33/30 - Mounting, exchanging or centering
• B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
• B29C 37/02 - Deburring or deflashing
• B29C 49/04 - Extrusion blow-moulding
• B29C 49/32 - Blow-moulding apparatus having movable moulds or mould parts moving "to and fro"
• B29C 49/56 - Opening, closing or clamping means

Abstract

Provided is a molding device comprising a transfer means capable of transferring a heavy mold-clamping device. According to the present invention, provided is a molding device for molding a molded body. The molding device comprises: a mold-clamping device for mold-clamping a parison that has been extruded from an extrusion device to obtain a molded article; a transfer rail for supporting the mold-clamping device so as to allow for transfer; and an electric cylinder for transferring the mold-clamping device along the transfer rail. The mold-clamping device comprises a first and second platen for retaining a mold, and a mold-clamping driving means for causing the first and second platens to move closer and separate apart. The electric cylinder comprises a motor having an output shaft and a lead screw mechanism for converting rotating motion of the output shaft to rectilinear motion, and further comprises at least one of configurations (1) and (2). (1) The motor is a brake motor having a brake, the brake making it possible to brake rotation of the output shaft. (2) A clutch is provided, the clutch being enabled to switch between a state for connecting the output shaft and the lead screw mechanism and a state where the connection between the output shaft and the lead screw mechanism has been loosened.

IPC Classes  ?

• B29C 49/04 - Extrusion blow-moulding
• B29C 49/32 - Blow-moulding apparatus having movable moulds or mould parts moving "to and fro"
• B29C 49/42 - Component parts, details or accessoriesAuxiliary operations
• B29C 49/56 - Opening, closing or clamping means
• B29C 49/72 - Deflashing outside the mould
• B29C 33/20 - Opening, closing or clamping
• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles

Abstract

A molding machine configured to achieve space saving and simplification of the hydraulic circuit. Provided is a molding machine configured to form a molded body by closing, in a state where a parison is disposed by injecting molten resin between first and second molds capable of being opened and closed, the first and second molds and maintaining pressure applied to the first and second molds. A hydraulic circuit to conduct oil for generating hydraulic pressure; the flow adjustment valve, a pressure adjustment valve, and a path control valve included in the hydraulic circuit; and a multi-functional valve unit.

IPC Classes  ?

• B29C 45/70 - Means for plasticising or homogenising the moulding material or forcing it into the mould, combined with mould opening, closing or clamping devices
• B29C 45/82 - Hydraulic circuits

Abstract

Provided is a molding machine configured to realize space saving and simplification of a hydraulic circuit. The molding machine is configured to form a molded body by injecting a molten resin between first and second molds, which are configured to be openable and closable, and closing the first and second molds to hold pressure while a parison is arranged, the molding machine comprising: a hydraulic circuit through which oil that generates hydraulic pressure flows, and a flow rate regulating valve, a pressure regulating valve and a routing control valve that are included in the hydraulic circuit. Each hydraulic mechanism performing at least said injection, opening and closing, and pressure holding is driven by the hydraulic pressure, the flow rate regulating valve adjusts the flow rate of the oil, the pressure regulating valve adjusts the hydraulic pressure, the routing control valve determines the flow route of the oil in the hydraulic circuit, and the flow rate regulating valve, the pressure regulating valve, and the routing control valve are accommodated in a multi-functional valve unit integrally including the valves.

IPC Classes  ?

• B29C 49/06 - Injection blow-moulding
• B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
• B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
• B29C 44/34 - Component parts, details or accessoriesAuxiliary operations