Patent classifications
B29C2043/3472
A METHOD FOR PRODUCING CELLULOSE PRODUCTS AND A ROTARY FORMING MOULD SYSTEM
A method for forming cellulose products from an air-formed cellulose blank having a base and one or more forming moulds attached to the base which is arranged to rotate around a rotational axis, wherein each forming mould comprises a first mould part Wand a corresponding second mould part wherein during rotational movement of the base around the rotational axis each first mould part is arranged to engage with its corresponding second mould part in a pressing direction. The method comprises arranging the cellulose blank in a position between a first mould and the second mould forming the cellulose products in the rotary forming mould system, by applying a forming pressure between the first mould and its corresponding second mould through an engaging movement of the first mould in relation to its corresponding second mould in the pressing direction, wherein the forming moulds are rotating with the base around the rotational axis.
A COMPRESSION MOULDING APPARATUS
An apparatus comprises: at least one mould for forming an object from a dose of polymeric material; a conveying device having a central support rotatable about a first axis the conveying device comprising at least one conveying element movable along a first closed path for collecting the dose and subsequently releasing the dose in the mould; a removing device having a central body rotatable about a second axis, the removing device comprising at least one removing element movable along a second closed path for conveying the object away from the mould.
The first axis is distinct from the second axis and at least one point exists at which one path selected from between the first closed path and the second closed path overlaps another path selected from between the second closed path and the first closed path.
Apparatus and method for processing doses
An apparatus including a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction; a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure; a transport device for carrying the dose towards the mould; an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.
APPARATUS AND METHOD FOR FORMING A CONCAVE OBJECT
A method comprises the following steps: providing a pre-processed element made of at least one polymeric material, introducing the pre-processed element in a female mould part having a forming cavity, shaping the pre-processed element between the female mould part and a male mould part, the female mould part and the male mould part being movable relative to one another along a moulding direction so as to form a concave object from the pre-processed element.
The forming cavity has a transversal dimension measured transversely relative to the moulding direction, the forming cavity further having a transition zone in which the transversal dimension passes from a larger value to a smaller value, the forming cavity further having a bottom.
During the introducing step, the pre-processed element is placed on the transition zone, so that the pre-processed element rests on the transition zone at a distance from the bottom of the forming cavity.
Apparatus and method for forming a concave object
A method comprises the following steps: providing a pre-processed element made of at least one polymeric material, introducing the pre-processed element in a female mould part having a forming cavity, shaping the pre-processed element between the female mould part and a male mould part, the female mould part and the male mould part being movable relative to one another along a moulding direction so as to form a concave object from the pre-processed element. The forming cavity has a transversal dimension measured transversely relative to the moulding direction, the forming cavity further having a transition zone in which the transversal dimension passes from a larger value to a smaller value, the forming cavity further having a bottom. During the introducing step, the pre-processed element is placed on the transition zone, so that the pre-processed element rests on the transition zone at a distance from the bottom of the forming cavity.
METHOD AND APPARATUS FOR PRODUCING A DISPENSING PART OF A CONTAINER, AND DISPENSING PART OF A CONTAINER
A method comprises in sequence the steps of: dispensing a continuous polymeric extrudate in a molten state; separating from the continuous extrudate a dose substantially having the shape of a parallelepiped, the dose having a separation surface at which the dose has been separated from the continuous extrudate, the dose further having a face adjacent to the separation surface; conveying the dose towards a mould comprising a first mould part and a second mould part; shaping the dose in the mould by moving the first mould part and the second mould part one towards the other in a moulding direction arranged transversally to said face, thereby obtaining a dispensing part of a container.
The dispensing part comprises: an edge zone suitable for being joined to a container body; a neck surrounding a passage through which a product contained in the container can be dispensed; a membrane which closes the passage, the passage being intended to be opened after the shaping step, so that said product can flow out.
APPARATUS FOR COMPRESSION MOULDING CONCAVE OBJECTS
An apparatus comprises: a dispensing device for dispensing at least one polymeric material; a severing element for severing a dose of polymeric material from the polymeric material dispensed by the dispensing device; a transport element for transporting the dose; a mould comprising a male mould element and a female mould element, the female mould element being positioned above the male mould element.
The transport element is configured to perform a first movement by moving along a path directed from the dispensing device towards the mould, so as to bring the dose to the mould. Moreover, the transport element is configured to perform, in addition to the first movement, a second movement by rotating about an axis, so as to turn the dose from a first orientation with which the dose is received by the transport element, to a second orientation with which the dose is released by the transport element onto the male mould element.
APPARATUS AND METHOD FOR PROCESSING DOSES
An apparatus including a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction; a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure; a transport device for carrying the dose towards the mould; an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.
Apparatus and method for processing doses
An apparatus including a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction; a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure; a transport device for carrying the dose towards the mould; an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.
APPARATUS AND METHOD FOR PROCESSING DOSES
An apparatus includes:
a co-extrusion device for extruding a multi-layer structure having at least one primary layer and at least one secondary layer, so that the multi-layer structure leaves the co-extrusion device along an exit direction,
a mould provided with a pair of elements, at least one of the elements being movable towards the other in a moulding direction, so as to compression mould an object from a multi-layer dose which was severed from the multi-layer structure;
a transport device for carrying the dose towards the mould;
an arrangement for modifying orientation of the dose while the dose is being transported by the transport device, so that the dose is introduced into the mould with an orientation in which the secondary layer extends transversely to the moulding direction.