Hoop-casing device

B - Operations – Transporting – 65 – B

Patent

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Details

B65B 13/32 (2006.01) B65D 81/07 (2006.01)

Patent

CA 2289030

The invention relates to a hoop-casing device (2) for hooping an object with a heat-sealable plastic strip (3) placed around it, comprising a unit (2) for stressing the strip (3) and for friction-sealing two overlapping strip parts (4, 5). Said unit (2) comprises a tool part which rotates around a rotational axis (6) and can be driven, with a cylindrical tool cover surface (8) and a bearing part (9), said bearing pan having a bearing surface (10) facing towards the tool part (7). At least said bearing surface (10) has a structure similar to soothing. The tool part (7) and the bearing pan (9) pivot mutually around a swivel axis (12) which is parallel to the rotational axis (6). The bearing part (9) comprises a multipart shoe (13) consisting of several holding blocks (14, 16, 18) arranged together angularly around the rotational axis (6). Said holding blocks (14, 16, 18) have exterior faces (15, 17, 19) which together form one exterior face (24) of the shoe (13) and the bearing surface (10) of the bearing part (9). The exterior faces (15, 17, 19) of the holding blocks (14, 16, 18) are preferably essentially level and at a right angle to the edges (20, 21, 22, 23) which are parallel to the rotational axis (6) and the swivel axis (12).

L'invention concerne une enrubanneuse (2) s'utilisant pour enrubanner un article avec une bande de matière plastique (3) thermosoudable placée autour, ledit dispositif servant à serrer la bande (3) et à souder par friction deux parties (4, 5) de ladite bande. Ce dispositif (2) comprend une partie d'outil (7) pouvant tourner et être entraînée autour d'un axe de rotation (6), qui présente une surface extérieure (8) cylindrique, et une partie d'appui (9) à surface d'appui (10) faisant face à la partie d'outil (7). Au moins cette surface d'appui (10) est structurée de manière dentée. La partie d'outil (7) et la partie d'appui (9) peuvent pivoter en sens contraire autour d'un axe de pivotement (12) parallèle à l'axe de rotation (6). La partie d'appui (9) comprend un sabot (13) en plusieurs parties composé de mâchoires de retenue (14, 16, 18) placées les unes à la suite des autres de manière angulaire autour de l'axe de rotation (6). Les mâchoires de retenue (14, 16, 18) présentent des faces extérieures (15, 17, 19) qui forment conjointement une face extérieure (24) du sabot (13), ainsi que la surface d'appui (10) de la partie d'appui (9). Les faces extérieures (15, 17, 19) des mâchoires de retenue (14, 16, 18) sont de préférence sensiblement planes et à angle droit et présentent des arêtes (20, 21, 22, 23) parallèles à l'axe de rotation (6) et à l'axe de pivotement (12).

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