Apparatus for dieless forming plate materials

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 24/00 (2006.01) B21D 22/00 (2006.01) B21D 22/26 (2006.01) B21D 51/18 (2006.01)

Patent

CA 2285364

The invention relates to an apparatus for the dieless forming of a sheet. The apparatus comprises a pressing mechanism and a sheet holding mechanism which are moved with respect to each other in X, Y and Z-axis directions and has a fixed ceiling plate form having a plane shape matching the bottom profile of a product to be formed; a framelike support plate surrounding the ceiling plate form is raised and lowered by at least one pair of raising/lowering actuators, and restraining actuators apply a controllable restraining force to the sheet by way of a framelike restraining plate clamping the periphery of the sheet in the sheet thickness direction between itself and the support plate. A mechanism for causing the support plate to undergo balanced movement and a material flow control mechanism may be preferably further provided.

L'invention concerne un appareil de formage de plaques sans matrice, comprenant généralement un mécanisme de pression adapté pour être déplacé selon les axes X, Y et Z, un mécanisme de retenue de plaques, un moule à plaque supérieure à position fixe dont la forme épouse le contour d'une surface inférieure d'un produit à mouler, une plaque support de type cadre entourant le moule à plaque supérieure et adaptée pour être déplacée verticalement par au moins une paire d'éléments de soulèvement, et une plaque support de type cadre adaptée pour serrer une partie périphérique de la plaque sur la longueur de la plaque support dans le sens de son épaisseur et capable d'être commandée par une force de fixation appliquée par un élément de fixation, et de préférence, un mécanisme supplémentaire permettant de déplacer la plaque support dans un état de bascule, ainsi qu'un mécanisme permettant de réguler la coulabilité du matériau.

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