Abstract

A method for nipping and cooling plastic sheet material and a multi-nip takeoff and cooling section having a first smoothing and a second smoothing roll. A position, calibration and cooling roll is positioned proximate to the second smoothing roll. The position, calibration and cooling roll is movable relative to the second smoothing roll. A first fixed calibration and cooling roll is positioned proximate the position, calibration and cooling roll. The first fixed calibration and cooling roll is in a fixed position relative to the second smoothing roll. A first movable calibration and cooling roll is positioned proximate the first fixed calibration and cooling roll The first movable calibration and cooling roll is movable relative to the first fixed calibration and cooling roll. Actuators cooperate with the position, calibration and cooling roll and the first movable cooling roll to provide both nip pressure and gap control.

IPC Classes  ?

• B29C 43/24 - Calendering
• B29C 47/90 - with calibration or sizing

Abstract

A method and modular mold clamp assembly for use in a molding machine. The assembly has a frame with a base member. The base member has end members provided thereon. Radial adjustment mechanisms are mounted on the end members, with the radial adjustment members configured to cooperate with turntables of the molding machine. At least one support bracket extends from the frame. The support bracket is configured to cooperate with at least one support fixture of the molding machine. The radial adjustment mechanisms and the at least one support bracket allow the modular mold clamp assembly to be moved toward and away from the center of a wheel of the molding machine.

IPC Classes  ?

• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
• B29C 49/56 - Opening, closing or clamping means

Abstract

A rotary trimmer for trimming flash and the blow dome from a plastic bottle forming a portion of a plastic blow molded log discharged from a blow mold includes flash punching, a neck support plate, and a guillotine blade. The neck support plate is movable by a plate drive to move adjacent the neck of the plastic log to support the neck during cutting of the blow dome and cooperates with a log holder to essentially support the entire outer periphery of the neck. The guillotine blade is movable by a blade drive to pass through the plastic log and sever the blow dome from the neck of the log.

IPC Classes  ?

• B29C 49/74 - Deflashing the neck portion
• B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
• B29L 31/00 - Other particular articles

Abstract

A multiple-piece cam (210, 230, 212, 220, 234) unit for use in a molding machine. The cam unit has a cam track which engages cam followers of mold assemblies of the molding machine to move the cam followers between a first position and a second position. The cam unit includes a first cam section (210) and a second cam section (230). The first cam section has an entrance portion (212) which is dimensioned to receive the cam followers therein. The second cam section has an exit portion (234) positioned to release the cam followers therefrom. The second cam section is moveably mounted to the molding machine to allow the exit portion of the second cam section to be moved relative to the entrance portion of the first cam section, to insure that the cam followers exiting the exit portion of the second cam section are properly aligned to enter the entrance portion of the first cam section.

IPC Classes  ?

• B29C 49/56 - Opening, closing or clamping means
• B29C 49/42 - Component parts, details or accessoriesAuxiliary operations
• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis

Abstract

An adjustable platen assembly (126) and method of assembly therefore. The platen assembly has a platen and a pressure plate (212) attached to the platen. The pressure plate may be rotatable around a longitudinal axis of the rod according to the size of a mold half mounted to the platen. The platen assembly may have at least one platen support (246) mounted to the platen. The at least one platen support may be rotatably mounted to the mold clamp. The at least one platen support can be rotated according to the size of a mold half mounted to the platen. The adjustable platen provides support to the mold half to reduce the amount of deformation to the mold half that is caused by the application of a closing force.

IPC Classes  ?

• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 49/56 - Opening, closing or clamping means

Abstract

The invention is directed a rotary molding machine (20) having a wheel mounted for rotation on a pair of shafts positioned along the rotational axis of the wheel. A first shaft cooperates with a first turntable of the wheel and a second shaft cooperates with a second turntable. The first and second turntables extend transversely to the rotational axis. A plurality of modular mold clamp assemblies (100) are positioned on the wheel, with each modular mold clamp assembly being moveable between an open and a closed position. Each modular mold clamp assembly has mounting areas which are mounted with respective mounting locations each turntable. The modular mold clamp assemblies provide the structure and rigidity between the turntables to help maintain the turntables in position relative to each other.

IPC Classes  ?

• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
• B29C 49/56 - Opening, closing or clamping means
• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 33/36 - Moulds or coresDetails thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable
• B29C 45/66 - Mould opening, closing or clamping devices mechanical
• B29C 45/06 - Injection moulding apparatus using movable moulds on a turntable
• B29C 49/04 - Extrusion blow-moulding

Abstract

A modular mold clamp assembly for use in a molding machine. The assembly has a frame with a base member (112) and oppositely- facing end members (111, 113), with the oppositely- facing end members having mounting areas provided thereon. First and second platens (132, 134) are movably mounted on the base member between an open and a closed position. The platens are mounted on the frame and are movable relative to the frame without transmitting forces to the frame. The frame, containing the platens, can be mounted or unmounted to the molding machine by the use of mounting hardware cooperating with the mounting area of the frame.

IPC Classes  ?

• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
• B29C 49/56 - Opening, closing or clamping means
• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 33/36 - Moulds or coresDetails thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable
• B29C 45/66 - Mould opening, closing or clamping devices mechanical
• B29C 45/06 - Injection moulding apparatus using movable moulds on a turntable
• B29C 49/04 - Extrusion blow-moulding

Abstract

A rotary trimmer for trimming flash and the blow dome from a plastic bottle forming a portion of a plastic blow molded log discharged from a blow mold includes flash punching, a neck support plate, and a guillotine blade. The neck support plate is movable by a plate drive to move adjacent the neck of the plastic log to support the neck during cutting of the blow dome and cooperates with a log holder to essentially support the entire outer periphery of the neck. The guillotine blade is movable by a blade drive to pass through the plastic log and sever the blow dome from the neck of the log.

IPC Classes  ?

• B29C 49/74 - Deflashing the neck portion
• B29C 49/50 - Moulds having cutting or deflashing means
• B29C 49/76 - Neck calibration

Abstract

A continuous blow molding machine includes a mechanism for shifting molds upstream during closing to reduce between-mold flash.

IPC Classes  ?

• B29C 49/14 - Clamps
• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis

Abstract

A vertical rotary blow molding machine for blow molding bottles using single or multi-cavity molds and parison carriers in gaps between molds. The amount of plastic used to mold the bottles is reduced by carrying the parison across the gaps.

IPC Classes  ?

• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
• B29C 49/28 - Blow-moulding apparatus

Abstract

A mold clamp assembly for a rotary-type or shuttle-type blow molding machine is mounted on a frame and includes a mold opening and closing drive connected to the two mold halves independently of the frame so that when the mold halves are closed, clamp forces are not transmitted to the mold halves through the frame.

IPC Classes  ?

• B29C 49/36 - Blow-moulding apparatus having movable moulds or mould parts rotatable about one axis
• B29C 49/56 - Opening, closing or clamping means

Abstract

A mold clamp assembly for a rotary-type or shuttle-type blow molding machine is mounted on a frame and includes a mold opening and closing drive connected to the two mold halves independently of the frame so that when the mold halves are closed, clamp forces are not transmitted to the mold halves through the frame.

IPC Classes  ?

• B29C 49/56 - Opening, closing or clamping means