Device for cutting wood or other materials to any desired width

B - Operations – Transporting – 27 – B

Patent

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Details

B27B 5/34 (2006.01) B27B 5/32 (2006.01)

Patent

CA 2283700

The invention relates to a cutting device for wood or other materials, comprising a saw blade clamping device for fixing circular saw blades radially and/or axially, said circular saw blades being mounted on a drive shaft in such a way that they can be moved axially. According to the invention, axially moveable individual carrying bodies are provided on said drive shaft (1) for at least one circular saw blade, e.g. (2a). Said circular saw blades, e.g. (2a) are moved axially by means of conveying spindles, e.g. (7) which run parallel to the drive shaft axle and penetrate said carrying bodies, e.g. (3). At least one clamping element (21) is positioned in the drive shaft (20). The campling element (21) is arranged so that it is radially movable. In the first stage, the circular saw blades, e.g. (2a) positioned on the carrying bodies (3) are moved by means of the clamping element (21). In the second stage, the circular saw blades, e.g. (2a) or carrying bodies e.g. (3) are connected to the motor shaft in such a way that they have a positive and/or nonpositive fit. The inventive device enables the width of the saw cut to be adjusted without the saw blades having to be disassembled, such disassembly being time and labour consuming. The carrying bodies for the circular saw blades are narrower than conventional moving heads for multiple-blade circular saws, with the result that a larger number of circular saw blades can be mounted on one axle.

L'invention concerne un dispositif de coupe destiné au bois et autres matériaux, comprenant un dispositif de serrage de lames de scie pour la fixation radiale et/ou axiale de lames de scie circulaire fixées sur un arbre d'entraînement et pouvant se déplacer axialement. Selon l'invention, des corps-supports (3) placés sur l'arbre d'entraînement (1) et pouvant se déplacer axialement sont respectivement destinés à au moins une lame de scie circulaire, p.ex. (2a). Le déplacement axial des lames de scie circulaire, p.ex. (2a), est assuré par des broches de transport, p.ex. (7), qui sont parallèles à l'axe de l'arbre d'entraînement et qui traversent les corps-supports, p.ex. (3). L'arbre d'entraînement (20) loge au moins un élément de serrage (21) qui est logé de manière à pouvoir se déplacer radialement. Lors de la première phase, les lames de scie circulaire, p.ex. (2a), portées par les corps-supports (3), sont déplacées par ledit élément de serrage (21). Lors de la deuxième phase, les lames de scie circulaire, p.ex. (2), ou les corps-supports, p.ex. (3), sont reliés par liaison de forme et/ou de force à l'arbre d'entraînement. Le dispositif de l'invention permet de régler la largeur de coupe sans un démontage coûteux en temps et en main d'oeuvre des lames de scie. Les corps-supports destinés aux scies circulaires sont plus étroits que les têtes de déplacement connues destinées aux scies circulaires à lames multiples. Cela permet de monter un plus grand nombre de lames de scie circulaire sur un axe.

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