SU103977A1 - Sharpening machine for segmented knives - Google Patents

Description

The invention relates to a machine for sharpening a segment knife of a sweeper, consisting of a stationary table with a clamping device and of a carriage bearing an abrasive wheel, moved by an eccentric.

A disadvantage of the known similar machines is that they do not provide automatic movement of the knife during the transitions to the sharpening of the next segments.

A distinctive feature of the proposed machine is that, in order to eliminate this drawback, the machine has clamps that capture the knife at transitions and automatically release it during the return stroke. The clamps are driven by a cylindrical cam, kinematically connected with a carriage.

FIG. 1 shows the general scheme of the machine; in fig. 2 and 3 are a front and side view of one clip; in fig. 4 - section of the spring roller, pressing the knife to the table.

The carriage /, bearing on abrasive wheels 5 on rotary kongiteynah 5, has a worm to 4, rotating a worm wheel with an eccentric 5,

which interacts with a fixed finger 6, together with the entire carriage reciprocating motion. On the carriage there is a gear rack 7, which is in engagement with the gear sector 8, equipped with a ratchet 9, providing rotation of the shaft 10, cylindrical and tangential cams //, 12 in the same direction during carriage movements. Cylindrical to the flap by lever 13, when the shaft rotates, imparts a reciprocating movement to the rod 14, at the ends of which there are clamps 15, which take the knife when moving the ropes and automatically release it during the return stroke of the rod. Tangential to the carriage during the transitions to sharpening the next segments raise the brackets with abrasive circles. The spring loaded roller 16 constantly presses the knife to the table 17. The shaft of the carriage shaft 18 is driven by belt drives 19, 20 from the engine 21. The clip for gripping the knife at transitions consists of a rotary pawl 22 mounted on an axle 23, which is fixed in block 24, the position of which on the bracket 25 fix

Reviews editor I. D. Tikhomirov

Standartgiz. Sub. s pec. 25 / X-55 g. Volume 0.25 p. L. Shooting range 400. Zack. 1542. Price 50 to.

.Ch 1; harassment of culture of the USSR. General Administration of the Printing Industry. 4- type. them. Evg. Sokolova. Leningrad, Izmailovsky Ave, 29.