DE2336650A1 - DEVICE FOR FEEDING LOGS TO A DEBARKING MACHINE - Google Patents

Description

PATCNTAN WALTE

PATENT Attorney DIPL-ING. R. MOLLER-BÖRNER, PATENT ADVOCATE DIPL-ING. HANS-H! WEY

IBERLIN-DAH LEM 33- PODBlE LS KIALLE E 68 'β MÖNCHEN 22 · WIDENM AY EÄST BREED

TEL. 0311 .762907 TELEGR. PROPINDUS. TELEX 0184 057 TEL. 0811. 225585. TELEGR. PROPINDUS. TELEX 0524244

24 896/7

ENO INDUSTRIES CO., LTD. Asahikawa-shi, Hokkaido, Japan

Device for feeding logs to a debarking machine

The invention relates to a device for feeding logs to a device for debarking logs Serving machine of the type, / with which from a wood trunk the bark is removed by messea? -: that is removed on the inner circumferential surface arranged a ^ r-si / eh rotating drum while the log is moved through the rotating drum.

Various types of machines for debarking logs are already known to which the logs can be fed in a wide variety of ways, but the above debarking machine is in which the knives are arranged on the inner wall of a rotatable drum, so formed that the cutting elements the knives are pretensioned during the rotation of the drum in the direction of the central axis of the drum,

409819/0631

so that a log fed along the drum axis is debarked by the knives as it passes through the rotatable drum and in this device it is It is necessary to keep the logs to be debarked along the axis of the drum while the machine is in operation feed, so that one needs a feeder, the construction of which is specifically related to their use is coordinated with the machine described.

The invention is based on the object of providing a device which makes it possible to feed a log to a debarking machine in such a way that the log is fed in the longitudinal direction along the axis of the "debarking machine, even if he does not have a rectilinear shape, and also to provide a device of the type mentioned which is suitable as a feed device to be used when placed on the infeed side of the debarking machine, and after Also required as a pulling or transport device to take effect can come when they are on the discharge side of the debarker is arranged so that it is possible to increase the debarking capacity of such a machine, if you are on the loading side as well as on the Discharge side of the debarking machine arranges a device according to the invention.

In order to achieve the stated object, the invention has created a device which makes it possible to one log at a time towards the middle of a debarking machine, with the knife are arranged on the inner wall of a rotatable drum, and the device according to the invention is designed so that it also enables a log to be centered lengthways in relation to the debarking machine, when the diameter of the log varies along the length of the log.

The subject matter of the invention and advantageous further details thereof are given below with reference to a

409819/0631

_ 3 -

"particularly preferred exemplary embodiment explained in more detail, which is shown schematically in the drawing; it shows:

1 shows a side view of a complete embodiment of a device for advancing or transporting of holy tribes; ■

Pig. 2 a horizontal section along the line II-II in Fig. 1;

3 shows an end view of the entire device according to FIG. 1;

4- an enlarged view of a transport roller the device of Figures 1 to 3; "and

5 shows a schematic perspective illustration, from which the cooperation of the gears used for locking can be seen.

As mentioned, it is possible to use the device according to the invention for transporting logs as a feed device to use when on the loading side the associated debarking machine is arranged, as well as a device for transporting debarked logs, if it is arranged on the discharge side of the debarking machine, the device will only be used in the following described with regard to their function as a feed device on the loading side of the debarking machine.

In the drawing you can see two feed rollers Λ and 2, each of which sits on a shaft 3 and 4; these shafts are mounted in bearings 5 and 6, which are each fastened to one end of an associated arm 7 and 8, respectively. The other ends of the arms 7 and 8 are each a locking gear 9 and AO. firmly connected. Such an arm 7 or 8 is arranged on both sides of each of the transport rollers 1 and 2. Since the intermeshing locking gears rotate only within

409819 / 063.1

half of a small ankle area can be done according to of the drawing, these gears are only designed as gear segments. Looking at the transport rollers 1 and 2 e.g. according to FIGS. 2 to 4 at right angles Axes, it can be seen that the Transportwalzeη at their middle parts 1a have a smaller diameter than at their ends. To ensure reliable transport of the To ensure logs, each transport roller is made up of several plate-shaped components 11 arranged at an incline constructed, each of which has a corrugated or serrated outer edge 11a as shown in FIG.

In each case two arms assigned to one another form together with the transport roller rotatably mounted between the one ends and the one attached to the other ends of the arms Gears or gear segments a transport roller assembly. According to the drawing there are two such Transport roller assemblies arranged vertically one above the other so that the transport rollers 1 and 2 touch, and that the locking gears 9 and 10 are in engagement with each other stand, as shown in Fig. 5, and the two assemblies are rotatably mounted on axes 12 and 13, the Are firmly installed in a frame 14 and along the Center lines of the gears 9 and 10 extend. So it is it can be seen that the transport rollers 1 and 2 can perform pivoting movements about the associated axes 12 and 13. Since the locking gears 9 and 10 are not rotatably connected to the axles 12 and 13, they can be on rotate these axes freely.

The arrangement of the two transport roller assemblies described so far, which are on the frame 14 in the are pivotally mounted in the manner described, each of Figures 1, 2, 3 and 5 is from the left half evident. According to the drawing, two other similar transport roller assemblies are on the order 14 with With the help of the axes 12 and 13 pivoted in such a way that they are opposite to the two already described transport

409819/0631

_ 5 -

roll assemblies extend in the opposite direction. The two second transport roller assemblies each include a '.Transport roller 15 "or 16 of the same Construction like the transport rollers 1 and 2, as well as two parallel arms 21 "and 22, on which these transport rollers supporting shafts 17 and 18 are rotatably mounted in bearings 19 and 20 fixed at their one ends, and " at the other ends of each a gear or a gear segment 23 or 24 is attached; these two transport roller assemblies are arranged so that their rollers 15 and 16 touch and the gears 23 and 24 mesh with one another, the gears also being freely rotatable on the axes 12 and 13 in the manner described are. The transport rollers 15 and 16 are opposite the Axes 12 and 13 arranged so that they are arranged symmetrically to the transport rollers 1 and 2.

The gears 9 and 10 of the arms 7 and 8 and the gears 23 and 24 of the arms 21 and 22 are on the axles 12 and 13 rotatably mounted at different points, and the gears 9 and 23 are arranged on the axis 12, while the gears 10 and 24 are arranged on the axis 13. The arrangement of these gears in relation to one another on the two axes can be seen in particular from FIG.

The transport rollers 1, 2, 15 and 16 supporting shafts 3 _S 4, 17 and 18 each project at one end further than the associated bearings 5, 6, 19 and 20 also, and on their outer ends sit sprockets 25, 26, 27 and 28. Sprockets 29 and 30 are rotatably mounted on the axles 12 and 13 at one end, and gears 35 and 36 that mesh with one another are attached to hub portions of the sprockets 29 and 30. If one of the chain wheels 29 and 30 is rotated, all four transport rollers rotate simultaneously.

According to JB'ig. 1 to 3 is on one of the frame 14 attached support block 14a a motor 37 for driving the

4Q9819 / 0631

Device arranged. On the shaft of the motor 37 sits a sprocket that works together with a chain 39, which runs over another sprocket 38, which on the common hub portion of the sprockets 30 and the gear 36 is fixed, which is rotatable on the axis 13 is stored.

According to the invention it is important that the transport rollers 1, 2, 15 and 16 are constantly in contact with one another be held, and for this purpose Elattfedern 40 and 41 are provided, which serve to move away from the axles 12 and 13 from arms 7j 21 and 8, 22 extending in opposite directions towards one another. The leaf springs 40 and 41 are in the middle between their ends on the order 14 of the device with the help of components 42 and 43 attached.

If the transport roller 1 according to FIG. 1 rotates counterclockwise after the motor 37 has been switched on, one of the device according to FIG. 5 ¹ Ig. 1 log fed from the left side is transported to the right. In view of this, the debarking machine is arranged on the right side of the transport rollers 15 and 16, and a second device according to the invention is arranged near the discharge side of the debarking machine.

The mode of operation of the feed or transport device according to the invention is described below. As soon as the motor 37 is switched on, the driving force of the motor is transmitted via the chain 39 »the chain wheel 38, the chain wheels 30 and the chains 32 and 34 to the transport rollers 2 and 16 in order to drive them, as well as via the chain 39, the chain wheel 38, the gears 36, 35 »the chain wheels 29 and the chains 31 and 33 on the transport rollers 1 and 15» so that these transport rollers are also driven. A log that the cooperating transport ^{rollers 1 and 2 according to S 1} Xg. 1 is fed from left to right, is thus fed by these transport rollers

409819/0631

detected and advanced, and here the rollers 1 and 2 are counter to the biasing force of the leaf springs 40 and 41 pressed together.

The upper transport roller 1 and the lower transport roller 2 are locked together by the intermeshing gears 9 and 10 attached to the arms 7 and 8 so that when the transport roller 1 is shifted upwards, the transport roller 2 downwards by the same amount is relocated. It is thus possible to advance the log so that its axis moves along a fixed path, even if the diameter of the log is constantly changing over its length »

As soon as a log has been grasped by the transport rollers 1 and 2, it will inevitably move according to FIG moves to the right as long as reels 1 and 2 are rotating. As soon as the log reaches the transport rollers 15 and 16, it is also transported by these rollers in the direction of the debarking machine, the rollers 15 and 16 can also be expanded. The leaf springs 40 and 41 prevent the two lower transport rollers 2 and 16 from yielding under the weight of the log while the log passes through the transport device. This is due to the fact that the leaf springs 40 and 41 are arranged so that they are on those parts of the associated arms 7> 21 and 8, 22 act on which the transport rollers are supported, so that pivoting movements of the lower arms 8 and 22 about the axis 13 are prevented downward.

As mentioned, the feeding device according to the invention enables to transport a log in the direction of its longitudinal axis so that the axis of the log is always kept in the same position, even if the diameter of the log varies, so that the device can be used in a very advantageous manner in connection with a debarking machine, in which knives are arranged on the inner wall of a rotatable drum to cut logs along the central axis of the advance rotatable drum.

4098 19/063 1 claims:

Claims (1)

A H b P E U CHE 1.y device for feeding logs to a Debarking machine in such a way that the longitudinal axis of each log fed in does not change its position, thereby characterized in that two transport roller assemblies are present, each of which has two parallel arms (7, 8), one between each end transport roller (1, 2) is rotatably mounted, and at the other ends of which a ten wheel (9 »10) is attached, that these transport roller assemblies are arranged together on one side of two stationary axles (12, 13), that the transport rollers touch and the gears are in engagement with one another, that the two transport roller assemblies are pivotably mounted on the fixed axes, which extend along the axes of the gears, that two other similar 'transport roller assemblies (21, 15, 23 or 22, 16, 24) exist that in a manner similar to the two first mentioned transport roller assemblies together on the opposite one Side of the two stationary axes are arranged and pivotably mounted on them that leaf springs (40, 41) are present are, which bias the respective cooperating transport rollers against each other, and that a device (37) is present, which is used to drive the transport rollers to move logs from one side of the device from longitudinally to the other side of the device. 2, device according to claim 1, characterized in that each of the transport rollers (1, 2, 15, 16) when looking at it in the right angle to hers Axis in its central part (1a) has a smaller diameter than at its ends. 4098 1 9/0631 J. Device according to claim 1, characterized in that g e k e η η, that each of the transport rollers when looking at the same at right angles to its axis in its central part (1 a) has a smaller diameter than at its ends, and that each transport roller one has corrugated or toothed circumferential surface (11a) » 4 0 981 970631 Jto Blank page