| 摘要 |
<p>1,213,859. Sawing. SOC. ANON. DES USINES CHAUSSON. 6 March, 1968 [14 April, 1967], No. 10983/68. Heading B5L. A process for cutting thin workpieces, such as tubes for radiators, into parts of equal length comprises mounting a circular saw 10 on a swing- ing movement element 6 associated with a device 2 for measuring the speed of advance of the workpiece to be cut, and subjecting the element to resilient forces acting in the opposite directions to the inertia forces of the element. The element 6 carries the circular saw at one end and a motor 8 at the other connected by a belt to the saw. The element is oscillated through an angleαby a rod 5 connected to a crank 4 on a shaft 3 on which the device 2 comprising a roller engaging the element to be cut is secured, the shaft also carrying a flywheel 3a and being connected to a variable speed motor 17. The resilient forces are applied to the element 6 by opposed springs which are adjustable so that their frequency is near to the frequency at which the element 6 is moved by the wheel 2. In another embodiment, two rollers geared together measure the speed of the tube to be cut. In a further embodiment, the resilient forces are provided by an adjustable torsion rod. The mass of the element 6 may be adjusted by weight 23.</p> |
