SU33794A1 - Machine for rolling circular and band saws - Google Patents

Description

The machine is designed for rolling discs, saws and band saws and is equipped with a spring driven hammer. A mechanism consisting of spring dampers associated with a gear coupling serves to switch the feed roller stroke; the shock absorber rods carry adjustable stops located along the rolled saw. The pressure of the moving saw, when it encounters its extreme position with an emphasis, causes deformation of the shock absorbers with subsequent transfer of the gear coupling of the drive, telling the shaft carrying the feed roller to rotate in the other direction.

In FIG. 1 is a top view of the machine; FIG. 2-transmission scheme.

On the table 7. There is a mechanism for switching the feed roller stroke, consisting of guides 2, along which the stops 5 slide, connected with the rods 4. Sliding the stops 3 can be rearranged according to the length of the roller to be rolled.

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in the rods 4 and fastened in them with the help of bolts with lambs. The rods 4 slide in guides -5 and tightly connected with spring shock absorbers 6, connected on the other hand to short rods 7, ending with toothed racks 8, sliding in guides of R. Reiki 8 are in engagement with those located under them with a 10-wheel brush mounted on rollers / 7 lying in bearings 12. At the other end of each roller 77, a pinion is also fixed, which engages with a toothed rack 13. The leashes 13 are loosely connected with fingers to the slide 14, which the middle part of the groove fist coupling 75 p A drive for switching the feed roller stroke on which the saw to be rolled is mounted. The rod 4 is further connected to the handle 16 for switching off the coupling in order to stop the rotation of the feed roller.

The saw blade moves with the feed roller and reaches the pre-installed stop 3 depending on the length of the saw. When meeting with the stop 3, the saw moves it along the guide 2 together with the rod 4, which will tend to stretch the spring shock absorber 6.

The stretch limit of the shock absorber is determined by the resistance needed to overcome the friction of the mechanism and the resistance from the friction between the teeth of the drive and the friction of the coupling 15 on the shaft. As soon as the shock absorber is reached, elasticity is needed to overcome the sum of the indicated resistances of the coupling / 5 is disconnected from the drive. Under the action of the force reserve in the shock absorbers, the coupling / 5 after switching off with the working gear will move in the opposite direction and switch the feed roller stroke, thereby changing the direction of movement of the saw to the opposite.

When the saw approaches the opposite stop, a movement similar to the described coupling / 5 and switching of the feed roller to move the saw in the opposite direction will occur.

The subject matter of the invention.

A machine for rolling circular saws and band saws, equipped with a spring-driven hammer, characterized by the use of a mechanism for switching the feed roller stroke, consisting of spring shock absorbers 6 ,. employees for the transfer of the fist clutch / 5 (Fig. 2) of the drive by the action of deflating them when they meet with a split of adjustable stops 3.