Compression moulding apparatus, methods and item
AssigneeSacmi Cooperativa Meccanici Imola Societa' Cooperativa
InventorsStefano Bergami, Paolo Martelli, Fabrizio Pucci
Life of this patent
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Abstract
An apparatus comprises a moulding unit having a punch and a mould cavity movable along a path between an open position in which said punch and said mould cavity are distanced apart from each other to receive a dose of plastics therebetween, and a closed position in which said punch and said mould cavity interact to form an item by pressing said dose, said punch being kept not above said cavity along said path.
Claims55
Apparatus, comprising a moulding unit having a punch and a cavity mould movable along a path between an open position in which said punch and said cavity mould are distanced apart from each other to receive a dose of plastics therebetween, and a closed position in which said punch and said cavity mould are aligned and interact to form an item by pressing said dose, said punch being kept at a height which is not greater than the height of said cavity mould along said path, the apparatus further comprising a supporting arrangement for supporting said dose, said supporting arrangement extending externally of said cavity mould for supporting said dose between said punch and said cavity mould in said open position.
Apparatus, comprising a moulding unit having a punch and a cavity mould movable along an axis between an open position in which said punch and said cavity mould are distanced apart from each other to receive a dose of plastics therebetween, and a closed position in which said punch and said cavity mould interact to form an item by pressing said dose, a supporting arrangement for supporting said dose between said punch and said cavity mould, said supporting arrangement comprising a supporting member of porous material.
Apparatus, comprising a moulding unit having a punch and a cavity mould movable along an axis between an open position in which said punch and said cavity mould are distanced apart from each other to receive a dose of plastics therebetween, and a closed position in which said punch and said cavity mould interact to form an item by pressing said dose, a supporting arrangement for supporting said dose between said punch and said cavity mould, said supporting arrangement comprising a tubular supporting member having holes through which air can be injected toward said dose.
Apparatus, comprising a moulding unit having a punch and a cavity mould movable between an open position in which said punch and said cavity mould are distanced apart from each other to receive a dose of plastics therebetween, and a closed position in which said punch and said cavity mould interact to form an item by pressing said dose, a dose-delivering mouth of an extruder being interposed between said punch and said cavity mould in said open position.
Apparatus, comprising a moulding unit having a punch and a cavity mould movable between an open position in which said punch and said cavity mould are distanced apart from each other and receive a plurality of doses of plastics therebetween, and a closed position in which said punch and said cavity mould interact to form an item by pressing said plurality of doses.
Apparatus, comprising a pair of rods for supporting a dose of plastics between a punch and a cavity mould, said pair of rods being actuatable by a cam arrangement having a first portion for driving said rods in a dose-receiving position in which said dose is received above said rods and a second portion for driving said rods in a dose-pinching position in which said dose is pinched between said rods, said second portion being adjacent to said first portion.
Dependencies are inferred from the claim text.