SU20798A1 - A device for removing bark from logs - Google Patents

Description

Devices designed to remove bark from logs by displacing them relative to each other in respective receivers are known. In the proposed similar device, the bottom of the receivers is provided with slots through which rotating or swinging bodies pass, raising and lowering the logs, thus achieving the transfer of semi-finished logs to the adjacent receiver and outputting the already finished logs to the outside, with the atom part of the raised logs and their neighbors returns down to the bottom of the receiver for reprocessing.

In FIG. 1 is a side view of the device with the side walls of the receivers removed; FIG. 2 is a top view of the device; FIG. 3 - fist detail; FIG. 4 is a front view of the device; FIG. 5 - view from the back; FIG. 6-receiver with another device, telling the logs movement; FIG. 7--10 forms of the implementation of said device; FIG. 11 - top view of the modified

the device driving the fists; FIG. 12-modified device funnel; FIG. 13 is a plan view of a collecting trough and conveyor for removing the bark.

Receivers 1, 2, 3 (Fig. 1), through which the processed material passes successively, are provided with curved and inclined front walls 4 adjacent to the side walls 5 and forming the bottom of the receiver bottom, where these front walls are adjacent to the back walls 6. The latter rise to the upper edge of the side walls, forming several sections with unequal inclination, in the lower section 7, forming the greatest angle with the vertical plane, there are slots 8 and 9 (Fig. 2) through which the fists 32 pass (Fig. 1-4 ). Depending on the properties of the bark and the difficulty of separating it from the wood, the proposed device is supplied with an appropriate number of receivers, which are preferably laid with boiler iron to be made of wood, steel or concrete. In the construction shown in the drawing, the receivers are supported by a frame: consisting of vertical posts 10 and longitudinal beams I.

The frame of the device supports, at the input end, a platform 12 (Figs. 1, 2 and 5) reaching the inclined wall 13, which adjoins the first receiver 1. The inclined platform 14 forms a junction between receivers 1 and 2, and similarly the platform 15 communicates between receivers 2 and 3. The upper edge of the rear wall of the receiver 3 is adjacent to the output platform 16, which is the last part of the path traveled by the logs during processing. The endless chain 17 (Fig. 1) moves the logs along the platform 12 and transfers them to the inclined wall 13; the sprockets 18 and 19, which bend around the chain 17, are supported by bearings mounted on the frame of the device, with the entire frame resting on the concrete foundation 20 (Figs. 1 and 4). Bearings 21 and 22 are mounted on the same foundation, supporting the shafts 23 of the fist organs, located near the cut-outs of 8 and 9 receivers. The shafts 23 are provided at the outer ends with gears 24 coupled with gears 27, sitting on shafts 26, laid in bearings 25, which are also mounted on a concrete foundation 20. On the same shafts, tightly reinforced pulleys 28 (Fig. 5) are connected belts 30 with the engine 29 (Fig. 2); In addition, a tube 31 connected to a water supply system is located above each receiver for supplying wash water. On the shafts 23, the fists 32 (Fig.) Are strengthened, which, when rotated, pass through slots 8 and 9; these fists, provided with surfaces 33 and 34 (Fig. 3) with an inclination in the direction opposite to the direction of rotation, act on the logs 35, lift them up and force them to roll under the fists provided with corresponding recesses 36 and 37 (Fig. 3). . The water and the crust separated from the bark pass through the slot for the fists in the walls of the receivers and fall into the collecting chute 38, which has a slope to the output end of the machine. This chute at its lower end communicates with a trough 39 j (Figs. 1 and 13), in which a scraper porter 40 consisting of chains 41 carrying scrubbers 42 and driven by sprockets is located above the bottom of the hole. 43.

When the machine is running, logs are fed to a feed conveyor, which transfers them to an inclined plane 13, j leading to the first receiver. The logs, i pads, into this receiver, fill it, covering the fists, which, at each I revolution, cause them to rise and I to roll, while continuously j makes room for lowering other logs. Thus, logs are intermittently fed from the bottom, tacks; They are punched and transferred to a higher point, and, being in contact with the fists, they turn around their axis and vigorously I rub against the surface of the body, so that the whole process works most efficiently. As the logs to be processed are supplied, the partially processed logs gradually rise; At the same time, at each turn of the fists, one or more logs, peeled from the bark, rise to the upper edge of the receiver. In a modified device (Fig. 6), a piston engine 38 is used instead of a cam, the piston of which, through the rod 40, the crosshead 39 and the earring 41, drives the pushers 42 acting on the logs in the same way as the fists described above.

Another mechanism for transmitting movement to the logs (Fig. 7) consists of a series of rotating rollers 43 provided with teeth capable of engaging with the logs and lifting them.

For the same purpose, a mechanism is designed (Fig. 8), consisting of an endless chain 44, continuously capturing logs from the receiver angle and releasing them at the top, in the middle of the latter, from where the logs are again gradually routed: from themselves the path to the conveyor.

Depicted in FIG. 9, a modified mechanism for transmitting movement of logs consists of a group of steering knuckles 52 of a triangular profile, and in the mechanism shown in FIG. 10, the working body is a bar 53 provided with the teeth 54, which achieves a rolling movement.

In order to reduce the power of the engine driving the device described above, a modified drive mechanism (FIG. 11), consisting of a shaft b5, parallel to a number of receivers and driven by a motor 56, is connected with KOTOpbiN a belt drive 57, 58, 59. On the shaft 55, the bevel gears 60 fasten together with the same gears 61, rigidly seated at the outer ends of the transverse shafts 62, on which the fists are displaced relative to each other.

In the modified design of the receiver (Fig. 12), the back wall has three kinks, formed by planes 63, 64 and 65, with the upper plane 65 having a greater inclination to the vertical than the average plane 64. With such a device, a small log cannot turn more a large log back to the receiver.

The subject of the patent.

1. A device for removing bark from logs by displacing them relative to each other in respective receivers, characterized by the use of passing through the slots in the bottom of the receiver and receiving rotational or rocking movement of the organs serving to lift the logs above it, partly for the purpose of transferring semi-finished to the adjacent receiver or to the output of the already prepared ones, partly for returning elevated logs and their adjacent down to the bottom of the receiver for reprocessing.

2. The form of implementation described in paragraph 1 of the device, characterized by

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by the fact that the working bodies in it are driven fists 32, so driven (fig. 1-5). .

3. The form of execution of the device described in paragraph 1, characterized in that the working bodies in it are pushers 42 (Fig. 6), which are reciprocally moved by means of a piston engine 38.

4. The form of the device described in Clause 1, characterized in that the working gauges in it contain groups of teeth, which receive rotation of the rollers 43 (Fig. 7).

5. The form of implementation of the device described in paragraph 1, characterized in that the working bodies in it are endless chains 44 provided with grippers.

6. The form of implementation of the device described in paragraph 1, characterized in that the working bodies in it are groups of steering knuckles 52 of the triangular profile (Fig. 9).

7. The form of execution of the device described in paragraph 1, characterized in that the working bodies in it are rocking-receiving rods 53, equipped with teeth 54 (Fig. 10).

8. The use of a series of successively operating receivers described in Section 1, with inclined pads 14 and 15 placed between them (Fig. 1), designed to roll logs from one receiver to another.

9. Use in the device described in paragraph 1 receivers, the back walls of which have either one (Fig. 1), or several (Fig. 12) fractures, in order to obtain different inclinations of their parts to the horizon.

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