SU44332A1 - Adaptation to balancing circular saw for automatic control of the roller path - Google Patents

Description

In the proposed adaptation to the balancing circular saw, for automatic control of the roller path feeding the logs, such a belt drive is applied from the pulley on the saw axis to the intermediate pulley in the transmission to the roller path, in which the belt is tensioned by the pulley itself on the saw axis.

In FIG. 1 is a side elevational view; FIG. 2 is the same top view; FIG. 3 is a side view of the mechanism holding; its logs; FIG. 4 shows a side view of a lever holding the frame carrying the saw in the upper position.

Parts of the proposed tool (Figs. 1, 2) receive movement from a pulley 7 constituting one piece with pulleys 2 and 3. From a pulley /, movement via a belt drive is connected to a pulley 4, which sits on a circular saw axis 5. On a saw axis 5 a pulley 6 is also fitted, connected to the pulley 7 also by a belt drive, the tension of which can be loosened to stop the transfer of movement from the pulley 6 to the pulley 7 by appropriately moving the height of the pulley 6. The pulley 7 is in alignment with the pulley 8, connected transmission with a pulley 9, transmitting rotation at transmission 10, 11 axis 12, bearing bevel gears 13. Gears 13 in turn

14 corrugated rollers 15 of a roller track are connected with gear wheels, along which the logs to be sawn are moved. Rocking pawl / b is simultaneously transmitted from pin 2, and the lever 17, which is connected at one end by means of a flexible rod 18 with the handle 19 and carrying the pulley 20 at the other end, is freely mounted on the axes. 77 is rotated and the pulley 2 is pressed against the belt, which connects the pulleys 2 and 16, as a result of which the pulley 20 also receives rotation.

When the pulley 20 rotates, the pulley 21 rotates on the same axis as it, which via gear 22 transmits the rotation to the drum 23. A cable 24 is wound on the drum 23, connecting the drum 23 to the frame 25 pivotally fixed on the rack 43. carrying circular saw 5 and equipped with a counterweight 26.

The frame 25 of the saw 5 is provided with sockets 27 and 28 (FIGS. 1, 2, 4), which include the end 30 of the stop lever 29, hinged on the rack 31 and loaded with a load 32. The lever 29 is connected with a cable 33 with the handle 34, which controls its movements. Under the end of the frame 25 of the saw 5, carrying the counterweight 26, there is a bar 55c with springs 36 serving as support points for the frame 25 when it is lowered by the end,

ts counterweight 26 and elevation saws 5 "hell roller way.

The logs to be sawn on the machine, in which the proposed tool is applied, are fed along inclined guides 37 (Fig. 1-3), on which they are held by a spring 38, controlled by a handle 40, connected to the rod 38 39. By lowering the rods 38 for a short moment, one log rolls down along the guides 37 to the second rods 41, controlled by the handle 42, after which it falls on the rollers 15 of the roller path.

Before the moment when the log MUST arrive at the rollers / 5, the worker, pressing the handle 19, turns the lever 17 and the pulley 2G, pressing the belt of the pulleys 2 and 76, comes into rotation, as a result of which the cable 24 acts on the frame 25 the end of which with the counterweight 26 is lowered onto the springs 36 of bar 35. When lifting the frame 25, the end 30 stops the lever 29 under the action of the load 32 enters slot 27 or 28 of frame 25 and supports it in the upper position. At the same time, due to the raising of the saw 5 and the pulley 6, the belt connecting the pulleys 6 y (7 receives tension and the pulleys 7, 8, 9, gears / (, 77 tons of rollers / 5 roller paths get rotation), due to - what the log coming from the guides 37, to the rollers 75 comes under the saw. 5. When the log reaches the preset mark, the worker presses the handle 34, the stop lever 29 coming out of the frame slot 25 and the frame 25 due to the greater weight of its front part It goes down with a saw 5, reaches the log and cuts it. Rollers 73 by the time the saw is lowered the log is stopped due to a weakening of the belt tension between the pulleys (5 and 7 at the time of lowering the saw 5 and the pulley 6.

After finishing the cut, the worker again presses the respective handles 40, 42, 19 and the described process repeats.

Cut off from a log on the same roller path enters the warehouse.

The subject matter of the invention.

Adaptation to balancing circular saw for automatic control of the roller path feeding the logs. characterized by the use of such a belt drive from the pulley 6 on the axis of the saw to the intermediate pulley 7 in transmission to the roller path in which the belt is tensioned by the pulley 6 itself near the upper position of the supporting end of the balance bar, and this tension is released when the pa6oTbi saw is lowered. j

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