Above mould moulding apparatus and method

Details Above mould moulding apparatus and method Above mould moulding apparatus and method

B - Operations, Transporting

29

C

B29C 39/04 (2006.01) A23G 1/21 (2006.01) A23G 1/22 (2006.01) A23G 3/02 (2006.01) A23P 1/10 (2006.01) B29C 33/10 (2006.01) B29C 39/26 (2006.01) B29C 43/12 (2006.01) B29C 43/36 (2006.01) B29C 33/00 (2006.01)

Patent

CA 2258864

The invention provides an apparatus and method for moulding a sheel article in a mould where moulding above the top of the moulding plate and therefore "out of the mould" is possible. The apparatus includes a flexible forming member which is inserted into the mould cavity of a mould to dispalce liquid moulding material in the mould cavity into the space between the moulding surface of the mould cavity and the forming member. Surrounding each forming member is containment means which contacts the top surface of the moulding plate at the edge of the moulding cavity to contain material forced above the top of the moulding plate. A channel is provided in conjunction with the container means, the forming member or the plate carrying the forming member into which liquid moulding material which rises above the level at the top of the moulding plate enters and is contained therein by the containment means. After solidification of the liquid moulding material a shell moulded article is provided in which some part ot the top rim of the article, or all of it if desired, has been moulded above the level of the moulding plate. Articles made in accordance with the apparatus and method invention are also included.

L'invention porte sur un appareil et sur le procédé de moulage d'un article conchiforme dans un moule permettant de mouler au-dessus de la plaque de moulage et donc "hors du moule". L'appareil comporte un élément de moulage souple placé dans la cavité d'un moule pour repousser le matériau liquide de moulage de la cavité dans l'espace compris entre la surface de moulage de la cavité du moule et l'élément de moulage. Autour de chacun des éléments de moulage se trouve un moyen de confinement en contact avec la surface supérieure de la plaque de moulage au niveau du bord de la cavité du moule pour maintenir le matériau entraîné au dessus de la plaque de moulage. Il est prévu un canal associé au moyen de confinement, à l'élément de moulage ou la plaque portant l'élément de moulage, dans lequel le matériau liquide de moulage s'élevant au dessus du niveau du sommet de la plaque de moulage pénètre et puis se trouve contenu par le moyen de confinement. Après solidification du matériau liquide de moulage, on obtient un article moulé conchiforme dans lequel une partie ou la totalité du bord supérieur est moulée au dessus du niveau de la plaque de moulage. L'invention porte également sur les articles obtenus au moyen de cet appareil et sur le procédé objet de l'invention.

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