SU58305A1 - Adaptation to scraper for automatic weighing of canvas - Google Patents

Description

automatic chipper attachment

weighing canvases.

It was filed on Oct. 23, 1937, in NKText under No. 1443. Published 30 November 1940.

Adaptations to the scraper machines for automatic weighing of accumulated canvases, indicating deviations from the correct weight and preventing accumulation of scrap, are already known. Also known in various fields of application are weights equipped with patch weights in the form of chains, beads, etc., restoring the balance of the scales when they are sequentially superimposed on the weighing pan, as well as automatic weights fitted with weights on paper tape. made in the form of a hammer, striking a tape through a tape on a disk with weight symbols protruding on it.

A scraper device for automatically weighing canvases according to the invention, using automatic weights with applied weights to control the actual weight of the canvases, equipped with an apparatus for automatically recording the weights of canvases on a paper tape, in order to periodically impose these weights on the weighing cup A shaft connected to the overhead weights is applied to the gear, which is automatically coupled to the gear of the rolling roller of the scutching machine.

The device, in comparison with other known devices for automatic scraper weighting of scraper blades, is designed not only to indicate the actual weight of the scoop on the scraper machine, but also to record it on a piece of paper tape fixed automatically in the last turns of each canvas, which makes it easier the possibility of subsequent technical quality control of canvases.

In FIG. 1 is a front view of an exemplary form of the device; FIG. 2 is a front view, partially in section, of a locking device of the device of FIG. one; FIG. 3 is a front view, partially in section, of the weight part of the device of FIG. 2; FIG. 4 is a front view of the gear to the weighing shaft of the device of FIG. 1 and 3; FIG. 5 is a front view of the device for imprinting marks on the paper tape to the device of FIG. one; FIG. 6 and 7 — details of the device of FIG. 1, partly in section. The device can be used both on scutching machines with automatic removal of canvases, and on conventional machines.

The device is made in the form of two rocker arms / suspended on the knives 2, reinforced in the cheeks of the trough for canvases. The right ends of the rocker arms are connected by cross-linking S to impart rigidity to the entire balance system. In the left parts of the rocker arm / equipped with depressions 4, designed to receive the necks of the rolling pin of the roll out canvas. In connection 5, a knife 5 is installed (Fig. 1-3), supporting table 6. A hinge 7 is suspended from the loop of table 6, the weight of which is equal to the weight of the rolling pin with the minimum canvas weight for a given number and length. As the number or length of the canvas changes, the number of overlays constituting the weight 7 changes accordingly. A hook S (Fig. 2) is designed to hold the rocker arms / in the off position, gripping the link 5. The eccentric 12 of the shaft 9 is designed to release the rocker arms 1 from the hook 8, periodically turning clockwise with the part 10 carrying the doggie. The ratchet 11, together with the eccentric 12, is rotatably mounted on the shaft P, the slide bearing of which is fixed by the latch 44 (Fig. 1). The back-runner / 3 is designed to hold the ratchet // in place during the reverse rotation of the shaft 9. A roller 14 is brought under the roller 45 of the rocker arm, one end of which is attached to the cheek of the trough and the other end to the shaft 9. When the shaft 9 rotates, the cable 14 is wound on it is pulled up and lifts the link 3 until it hooks onto the hook 8. At the end of the shaft 9, gear 36 is rigidly fastened, which, when the tool is working, operates with the continuously rotating gear 37 of the forward rolling shaft of the scutching machine by moving the bearing-slide of the shaft 9 to gear 37 to fixing it with a latch 44. To carry out the weighing of the canvas, a shaft 15 is designed, which passes across the trough of the machine with the bristles 16 rigidly mounted on it for feeding weights 20, a pin 17 equipped with pins, a pulley / 8 and a counting disc 19. The attached weights 20 are mounted on a cord The shape of the beads designed when the gear 16 is rotated clockwise to be placed on the table 6 of the rocker arms /. Convex marks “Marriage, 25, 50, 75, 100, 125, 150, 175” are shown on the circumference of the countable disk 19 (FIG. 5), The figures on this dial show the lack of weight to the minimum weight of the canvas. The pulley / 8 is designed to rotate the shaft 15 from the shaft 9 through the belt 21 (Fig. 3). When weights 20 are lowered onto table 6, weight 25 tons is added to the weight of the rolling pin and the minimum canvas weight for each weight 20. To stop the rotation of shaft 15 when balance arms balance / action of weights 20, a latch 22 is attached to one of the arms and interacting with the disk studs / 7 (Fig. 3), located respectively the depressions of the gear 16.

On the shaft 9, gear 24 is rigidly fixed, coupled through a pair of intermediate gears 25 to 26 seconds. gear 27, making for the period of weighing one revolution (Fig. 4 and 5). An eccentric 28 and a roller 29 (Fig. 6) are mounted on the same axis as the gear 27, which moves the belt along the table 5. In one turn of the roller 29, a belt is emitted, for example, 100 mm. The tape passes between the counting disc 19 and the hammer 23 with a protrusion 31 supported on an eccentric 28 and loaded with a spring 32 (Fig. 5). When the eccentric rotates, the hammer 23 rises and falls, with the sharp edge of the cut, the released piece of tape and pressing it to the counter disk, printing on the tape corresponding to the disk 19. The gear 27, and therefore the roller 29, releasing the tape, rotate only in one direction thanks to the intermediate gear 25 and 25.

The gear 26 (FIG. 7) is provided with a long sleeve, on which the ratchets 33 sit on the keys. The gear 25 sits on the sleeve of the gear 26 freely and carries the paw 34 resting on the tooth of the ratchet mounted on the sleeve of the gear 26. rotating the gear 25 counterclockwise, the pawl 3.puts into the tooth of the ratchet 33 and drives the gear 26 with itself. When the shaft 9 rotates in the opposite direction, the gear 25 rotates clockwise, the pawl 35 fastened on the trough cheek, rests against the ratchet tooth 33 and gear 26 will be locked. The dog 34 will not pick up the teeth of the ratchet 35. The following mechanism is designed to periodically rotate the shaft 9 after rolling the canvas into the trough. A shaft 42 (Fig. 1) connected by an earring (not shown in the drawing) with a cut-off lever is rigidly fitted with the paws 42 and part 39 with a dog abutting the tooth of the ratchet 40 fastened to the ratchet 4 freely seated on the shaft 38.

When the shut-off cut-off lever falls, turning the shaft 38 at a certain angle clockwise. Together with the rotation of the shaft 38, the paws 42 are raised, and the doggy of part 39 captures several teeth of the ratchet 40. When the canvas rolls out, with its weight it lowers the legs of 42 and returns to its original position the shaft 38 and part 39, the doggie of which turns against the ratchet’s tooth 40 him with him, and with it the ratchet 41, whose big tooth will push the lever 43 to the right. The lever 43 is designed to interact with the bearing-slide of the shaft 9 and for coupling the gears 36 and 37, fixed by the latch 44, From this moment the rotation of the shaft 9 and the operation of the whole fixture will begin. By

at the end of the weighing, the cable J4 arresting the scale is wound on the shaft 9 and with a finger (not shown in Fig. 2) will lift the latch 44. The slide of the shaft 9 will be released and the shaft will move to the left position, i.e. gears 36 and 37 will come out of the engagement . The shaft 9 will begin to rotate in the opposite direction under the action of a load suspended from the cable 14. This terminates the work of the mechanisms for weighing the canvas until the next cut-off and rolling out the new canvas, all the parts of the fixture being automatically returned to their original position.

The subject matter of the invention.

Claims (3)

1. Adaptation to scuttling machines for automatic weighing of canvases using a weight indicator and overhead chain weights, characterized in that, in order to periodically overlay said weights on the weight weight, applied to gear 16 overhead weights and placed in a slider shaft 9 carrying gear 36, automatically driven by shifting the shaft into engagement with gear 37 of the scraper machine. 2. In the apparatus according to claim 1, use the latch 22 attached to the rocker, interacting with the studs of the disk 17 of the gear 16, with the aim of stopping it when restoring the balance of the rocker arm and thereby terminating further imposition of chain weights 20. 3. In fixture on PP. 1 and 2 use a ratchet 41 intended to move in the direction of the shaft 9 and thereby interlock its gear with the gear of the scraper machine. yoo o so 00 C. | u n - Chán F tet and I o O w o s- about in ffi with