Abstract:
An apparatus for obtaining doses of plastics in a pasty state comprises a dispensing device (1) for dispensing plastics (2), cutting means (3) for cutting said plastics (2) to obtain a dose (D) and contrasting means (7; 107; 207; 307) opposite said cutting means (3) for restingly receiving said plastics (2) during and after cutting, said contrasting means (7; 107; 207; 307) comprising a first contrasting element (13; 113; 115) and a second contrasting element (13; 113; 116) that are mutually movable.
Abstract:
An apparatus comprises forming means (2, 6) for forming an object from a dose (D) of flowable material and transferring means (10) for transferring said dose (D) to said forming means (2, 6), said transferring means (10) having a recess (306; 606; 13) for receiving said dose (D), in said recess (306; 606; 13) there being provided rolling means (315; 615; 15; 115; 215; 415) for guiding said dose (D) inside said transferring means (10).
Abstract:
A take-out and cooling method and apparatus conveys molded plastic articles from a molding machine to and through a cooling station and preferably includes a take-out apparatus that has a main support, a conveyor carried by the main support for movement in an endless path, a cam adjacent to the support, a plurality of arms carried by the conveyor for movement with the conveyor along the endless path and including a follower responsive to the contour of the cam to vary the position of the arms relative to the support, and at least one holder carried by each arm. Each holder is adapted to receive and carry at least one molded article to facilitate in conveying the molded articles and is flexible and resilient to permit relative movement of at least a portion of the holder relative to its associated arm.
Abstract:
The present invention relates to an adjustable star wheel and guide rail assembly for use with containers being processed on an automated handling line between machines such as rotary packaging machines. Star wheels derive their name from their general shape. The star wheels of this invention have fingers that support containers, such that they convey the containers as the star wheel rotates. Conveniently, the fingers of the present invention may be set in any position within their range of movement. In addition, a supporting guide rail may be adjusted, for example by rotation on cams. Thus, the fingers and the guide rail may be set to convey containers of varying sizes whilst keeping the container's centres travelling along the centreline of the conveyor.
Abstract:
An apparatus for placing mold charges into a mold (52) of a compression molding machine (20) includes a carrier (500), an arm (504) pivotally mounted on the carrier and a mold charge pick-up cup (512) on the arm at a position spaced from the carrier. The arm is pivotal on the carrier between a first position at which the arm is positioned to deposit a mold charge into a mold and a second position at which the mold charge pick-up cup is disposed to transport the mold charge. The carrier preferably is mounted for rotation around an axis. In some embodiments, a cam mechanism (516) is coupled to the arm to pivot the arm as a function of rotation of the carrier. A spring (532) may be coupled between the arm and the carrier for biasing the arm toward one of the first and second positions of the arm. In another embodiment, an actuator (534) is carried by the carrier and coupled to the arm to pivot the arm with respect to the carrier. The arm preferably includes a passage for selective application of air and/or vacuum to the mold charge pick-up cup.
Abstract:
Apparatus for compression molding plastic articles includes a plurality of molds mounted for travel around a first axis. Each mold includes an upper mold section and a lower mold section, with at least one of the upper and lower mold sections being moveable in a non-circular first endless path, and being moveable with respect to the other mold section to form a mold cavity. A mold charge delivery system delivers individual mold charges to the mold cavities and includes at least one delivery mechanism that travels in a second endless path around a second axis spaced from the first axis, wherein the second endless path overlies a portion of the first endless path.
Abstract:
A take-out and cooling method and apparatus conveys molded plastic articles from a molding machine to and through a cooling station and preferably includes a take-out apparatus that has a main support, a conveyor carried by the main support for movement in an endless path, a cam adjacent to the support, a plurality of arms carried by the conveyor for movement with the conveyor along the endless path and including a follower responsive to the contour of the cam to vary the position of the arms relative to the support, and at least one holder carried by each arm. Each holder is adapted to receive and carry at least one molded article to facilitate in conveying the molded articles and is flexible and resilient to permit relative movement of at least a portion of the holder relative to its associated arm.
Abstract:
An apparatus comprises: forming means movable along a first path for compression moulding doses of plastics; a plurality of transfer means for transferring said doses to said forming means; a plurality of arm means, each arm means being associated with a corresponding transfer means for moving said transfer means along a second path having a portion substantially coinciding with a further portion of said first path.
Abstract:
The invention relates to a device and a method for producing blow-moulded containers, comprising a heating station (9), a transfer wheel (5) and a blow wheel (13), with several blow forms. Preforms are guided from the at least one heating station to the blow wheel via the transfer wheel; the individual blow moulds can receive at least two preforms for the forming thereof; the transfer wheel comprises several gripperarms (2) which extend radially in an outward direction with at least two grips which can be pivoted. In order to enable an improved and efficient transfer of preforms from the heating station to the blow wheel while at the same time increasing productivity, the distance of the longitudinal axes of the gripper of a gripper arm in relation to each other corresponding to the distance of the longitudinal axes of the preforms in the blow mould is twice as great as the distance of the longitudinal axes of the preforms in the heating station, or the device comprises the n heating stations which are arranged in relation to the transfer wheel in such a way that the first gripper of a gripper arm receives preforms from a first station and a n gripper of the same gripper arm receives a preform from the n heating station, the distance of the preform in the blow mould in relation to each other corresponding to the distance of the grippers (whereby n is greater than 1).