SU38106A1 - Device for trimming the ends of the flooring fabrics, etc. - Google Patents

Description

Known use in machines for I flooring fabrics forcibly moving across a disk fabric | knife. In the proposed device, a double-sided bevel gear with teeth on a semicircle with each is applied; the sides and two groups of gears, of which the first group is intended to move the gear racks; and raising the presser bar, and the second one — to mix the carriage and rotate the knife. The device is equipped with a sliding contact placed on the disk of the pinion and serves to turn off the motor after the end of the ascent; Noah line.,

In FIG. 1 shows a vertical longitudinal section of the device; | FIG. 2 is a cross-section of it; FIG. 3.- j device view from above; FIG. 4 and 5 diagram of the mechanisms; FIG. 6 is a device control circuit.

The proposed device (Fig. 1-3) consists of a table 1 with an electric motor 2 installed under it; gear 3 is mounted on the shaft of the latter, coupled with the bristles 4, mounted on the shaft 5, at the end of which there is a worm to 6, coupled with a worm wheel 7, on one shaft with which sits a large

(28)

bilaterial conical gear 8, having a tooth only on the semicircle on each side. One of the sides of gear 8 is coupled with a bevel gear 9, which sits on a rack shaft 10, on both ends of which there are cylindrical gears 11 coupled with vertical gear racks 12, joined by a beam 13, which is also a pressure bar. On the other hand, the gear 8 is coupled with a bevel gear 14, mounted on the shaft 15, at the right end of which (Fig. 3) the sprocket 16 is mounted with a chain 17 thrown over it, which, in turn, is thrown over the small sprocket 18, set on the end Worm shaft 19.

A carriage 20 with a frame for bearings of the disk knife 21 is mounted on the shaft 19. The left end of the worm shaft 19 ends in double ball bearing 22. At the end of the shaft 5 there is a sprocket 23 with a chain 24 slung over the small sprocket 25 worn on the upper worm shaft 26, also passing through double ball bearings 22. A worm shaft 26 is engaged with a small worm wheel 27 fixed on the same shaft with a disc

knife 21. Gear 9 has ratchet discs 28 and spring 29.

The proposed device operates as follows. The electric motor 2, through gears 3 and 4, rotates the shaft 5 and the worm to 6, which causes the worm gear 7 and the double-sided bevel gear 8 (Figs. 1 and 2) to rotate, from which the bevel gear 9 with the shaft 10 and gear 11 rotates, the raising gear racks 12 with a ruler 13 until the sliding contact 30 (fig. 6) located on the gear disk 8 opens (fig. 1), after which the ruler 13 remains in the upper position (fig. 5). In this position, the flooring is laid on the table, after which the switch is turned on to reverse the motor. When raising the line 13, gear 8 was in engagement with gear 9 half a turn of gear 8; when the motor switches to reverse gear, gear 8, after a half-turn, turns off gear 9, the ruler 13 stops on the floor, and the gear makes the second half turn in engagement with gear 14, causing the sprockets 16, 18 and the worm shaft 19, and carriage 20 to move from left to right (Fig. 4), during which rotation of the worm shaft 26 takes place, through gear 3, 4, 5, sprockets 23 and 25; The worm gear 27 coupled to the shaft 26 also rotates with the disk knife 21, which cuts the flooring pressed by the ruler 13 and the bar 31. When it reaches the opposite end, the carriage 20 switches the motor to reverse, causing the gear 14 to rotate back the carriage in the left initial position corresponding to the half turn of the gear 8, and for the second half turn the gear 14 is turned off and through the transfer

raises the line 13 as described above. After this, the flooring is laid and the process is repeated. When cutting each deck, you only have to switch on the switch once. Further, the machine is operated as indicated in FIG. 4 and 5. The knife 21, approaching the ends of the machine, enters the housings 32, which protect workers from cuts.

Regardless of the fact that the flooring is of different thickness, reaching up to 12 cm, the ruler 13 can stop at different heights from the table, since gear 9 will already be idling due to the fact that the flooring serves as resistance and it stops acting on the shaft 10 being turned off by the ratchet disks 28. When raising the ruler 13, under the action of the spring 29, the gear 9 again engages with the shaft 10.

The subject matter of the invention.

1. A device for cutting the ends of the flooring of fabrics, etc., provided with a carriage with a circular knife forcibly moving across the fabric, characterized by using a double-sided bevel gear 8 with teeth on a semicircle on each side and two groups of gears 9. 10, 11 and 14 , 15, designed for first moving the toothed racks 12 and lifting, the presser bar 13 when folding the fabric on the table, and the second for moving the carriage 20 and rotating the knife 21.

2. With the device indicated in clause 1, use the sliding contact 30 placed on the disk of the gear 8, designed to turn off the motor after the rise of the ruler 13.

i to the author's witness I. F. and I. M. Rykli: aA H8106

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