JPH0562041B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a bark discharge device in a bark peeling machine that peels the bark of wood and discharges it outside the machine.

(b) Prior Art Conventionally, a rotor is provided at the lower opening of a wood container as shown in Fig. 11a, and the wood is peeled using a peeling machine with a number of peeling blades protruding from the outer circumferential surface of the rotor, and a drum barker. A bark separator is equipped with two parallel rotors installed in two openings at the bottom of a wood container, as shown in Figure b above, in order to inherit discharged bark and wood, peel the remaining bark, and remove the bark. is already known.

(C) Problems to be Solved by the Invention The known peeling machine shown in FIG. ), but the debarking teeth were arranged in a spiral shape with a large lead angle to increase the pressing force against the wood and encourage the movement of the wood, and the spacing in the circumferential direction was wide. The depth of the notch was made slightly larger than the height of the peeling teeth so that there was little chance of ejection, and the wood did not dig into the notch. Bark accumulated at position A, which deteriorated wood circulation and debarking performance, and also caused the bark to be discharged from the discharge port following the wood, making removal work difficult.

In addition, in the method that uses a rotor, bark accumulates between the two rotors B, which becomes an obstacle and obstructs the circulation of wood. No effect was obtained.

(d) Means for solving the problem The present invention provides a rotor that is disposed opposite to the lower opening of a wood container having at least an open lower part, and a large number of peeling teeth protruding from the outer periphery of the rotor at intervals, The scraping tooth is fixed between the peeling teeth and on the rotational trajectory of the peeling tooth, and the scraping tooth is made slightly lower than the peeling tooth, so that the scraping tooth reduces the peeling action of the scraping tooth to push up the wood. The above-mentioned problems are solved by ensuring that the peeling teeth catch the peeled bark in this state and discharge it from a wide gap at the exit side notch without damaging the wood.

(E) Function When the rotor in the peeling machine rotates, the numerous peeling teeth protruding from the outer circumferential surface of the rotor enter the opening of the wood container through the notch on one side and strip the wood.

At this time, the scraping teeth are located at the rear in the direction of rotation between the peeling teeth, and are slightly lower than the peeling teeth, so they do not become an obstacle when the wood comes into pressure contact with the peeling teeth, and good peeling can be performed. The peeled bark moves toward the notch on the other side while being caught on the scraping tooth, and when the scraping tooth escapes from the notch, the notch reaches a height that allows the peeling tooth to escape. However, since the scrap teeth are lower than the peeling teeth, the gap between the scrap teeth and the notch becomes larger, allowing even large bark to be reliably ejected.

In addition, when a bark separator is installed in parallel with the discharge section of a drum barker, the wood that is discharged from the drum barker together with the bark and transferred to the bark separator will be removed by the barking teeth as the rotor rotates, and the remaining bark will be peeled off. The bark transferred from the drum barker and the bark transferred from the drum barker are caught and reliably discharged without impairing the peeling action in the same manner as the peeling machine.

(f) Embodiment An embodiment of the present invention and its related structure will be explained with reference to the drawings. The wooden container 1 has a wide opening at the top and a narrow opening at the bottom, or the lower end is formed into the opening 2. It is constructed by providing a hopper and covering the part following it in an arc shape, and the rotor 3 is partially inserted into the lower opening 2 and supported by a shaft 3a, and is rotationally driven by a motor via a speed reducer. .

Further, on the outer circumferential surface of the rotor 3, a large number of peeling teeth 5 are spirally welded, and the rear part of the rotation direction is raised in a stepped manner. A large number of comb-shaped notches 6 are bored into which the skinning teeth 5 enter and exit.

Between the skinning teeth 5, 5, as shown in FIG.
A partially wrapped scraping tooth 7... is fixed to the rear part of the scraping tooth 7, and this scraping tooth 7... has one or more protrusions on the front surface in the direction of rotation, and the fixed position is similar to that of the other scraping tooth 5. Since it is on the rotation locus of
. . . into the wood container 1 and cut out the other side of the notch 6.
Exit from.

Further, the scraping teeth 7 are lower in height than the peeling teeth 5,
The thickness is reduced, and the upper surface of the projection on the entire surface is approximately parallel to the outer circumferential surface of the rotor 3, and the tip portion is smaller than a right angle.

In the above-mentioned device, the wood container 1 and the rotor 3
As with the conventional one, it is inclined so that the discharge side at the other end is lower than the input section side near one end, and when wood with bark is input from the input section while rotating the rotor 3, the peeling teeth 5... ... and the scraping teeth 7 enter into the wood container 1 through the notch 6 on one side, and the bark stripping teeth 5... do not push up the wood but instead rotate to peel off the bark from one side to the other side. On the other side, the wood in the front is pushed up by the wood in the back, which circulates it to one side.

When the peeling teeth 5 ... peel the wood while pushing up the wood, the scraping teeth 7 are lower and rearward than the peeling teeth 5, so the scraping teeth 5 are inhibited by the scraping teeth 7. Since the bark is removed while pushing up the wood reliably without causing any damage, there is no deterioration in the peeling performance.Also, the protrusions of the scraping teeth 7 protrude from the front in the direction of rotation, so the bark can be removed securely. At that time, if the protrusion protrudes in the direction of rotation, it will easily bite into the wood and cause damage, but the peeling tooth 5... will hook the peeled bark immediately after pushing up, so it will not stick to the wood. Without biting in, when moving to the notch 6 on the other side in this state and exiting from the notch 6, the peeling tooth 5 between the top of the scraping tooth 7 and the upper end of the notch 6 is removed. Since it is larger than the case, the bark that is caught can easily escape, and even if the bark is folded in two, it can be easily and efficiently discharged by making the scrap teeth 7 thin.

Therefore, the bark does not accumulate on the upper side of the notch 6, and the peeled bark does not circulate together with the wood and deteriorate the peeling performance.

When the above-mentioned debarking machine is connected to the discharge port of the drum barker 8 to form a bark separator 9 as shown in FIG. The bark that has been removed but not discharged flows into the input section of the bark separator 9.

Then, the peeled bark that has flowed into the debris tooth 7
... is rapidly discharged, the remaining bark is efficiently peeled with little bark, and the peeled wood is discharged from the discharge port onto the carry-out conveyor 10 and carried out.

At this time, the wood contains some bark, but it is extremely small, so it can be fed to the chipper after a slight sorting process.

Reference numeral 11 indicates a barker exit chute, and reference numeral 13 indicates a receiving tooth obliquely welded to the lower inner surface of the wood container 1 on the side into which the peeling teeth 5, etc. enter.

Next, the sub-barrel type peeling machine will be explained with reference to FIGS. 6 and 7. 3 is a rotor in which the same peeling teeth 5 and scraping teeth 7 as described above are arranged in combination, and the upper part on the exit side A sub-rotor 12 is pivotally supported in parallel to the sub-rotor 12, and the sub-rotor 12 has peeling teeth 5 and lower scraping teeth 7.
Although they may be arranged and welded in the same manner as shown in FIG. 6, only the scrap teeth may be welded as shown in FIG.
After performing the peeling process and the scrap removal process, the sub-rotor 12 carries out the peeling process and the scrap removal process, and the peeling teeth 5... and the scrap extraction teeth 7...
The bark can be stripped and scraped by ..., and the bark gets caught in the protrusions on the front of the scraping teeth and is efficiently discharged, and the wood is not damaged by these scraping teeth 7... .

Moreover, by reducing the diameter of the sub-rotor 12 in which only the scrap extraction teeth 7 are implanted in the sub-rotor 12, it is possible to remove the debris while preventing damage to the wood.

Furthermore, between the rotor 3 and the sub-rotor 12, the bark is efficiently discharged by the scrap teeth 7 of the rotor 3, so there is very little bark deposited, and this small amount of bark follows the movement of the wood. It moves to the sub rotor 12 and is discharged.

Of course, this sub-barrel type peeling machine can also be used as the bark separator 9 of the drum barker 8.

In the single-barrel type peeling machine described above, if the peeled bark is very hard, the amount of wood is small, or there is no wood and only the bark remains in the wood container 1, the peeling tooth 5 Also, the scrap teeth 7 may float up on the side where they exit the wood container 1 and may not be discharged.

In such a case, as shown in FIGS. 8 to 10, a protrusion 6 forming a cutout 6 at the lower part of the side from which the peeling teeth 5 and the scraping teeth 7 of the wood container 1 exit.
a, the upwardly curved partition plate 15 is connected to the rotor 3.
This partition plate 15 is fixed parallel to the rotating direction of the partition plate 15.
A vertical skin receiving bar 16 is fixed along the top of the notch 6 from the side surface. These partition plates 15 and skin receiving bars 16 are arranged in large numbers at appropriate intervals in the parts other than the discharge port side of the rotor 3, and the partition plate 15a at the end of the rotor 3 is arranged as shown in FIG. It extends long from the protrusion 6a to be higher than the partition plate 15 and approximately above the center of the rotor 3.

If it is difficult to discharge the bark as described above, the wood to be debarked moves in the direction of arrow A in FIG.
Or the partition plate 15 is partially engaged with the scrap teeth 7.
... and is further received by the skin receiving bar 16, so that it is not pushed up along the side plate and can be reliably discharged.

Furthermore, since the wood and bark are guided to the long and tall partition plate 15a on the discharge port side of the wood container 1, the bark can be discharged while the wood is being discharged well.

The partition plate 15...15a and the leather receiving bar 16...
According to experiments, bark discharge can be carried out extremely efficiently by installing a ..., so it is not necessary to use a double-drive type, but if it is difficult to discharge debris due to the type of tree, the time of felling, the moisture content, etc., a double-drive type can be used. In such a case, the partition plates 15, 15a are provided between the rotor 3 and the sub-rotor 12, and if the wood container 1 has a significantly large capacity, they are also provided above the sub-rotor 12.

In addition, the partition plates 15, 15a and the leather receiving bar 1
Item 6 is applied to the above-mentioned single-barrel type or double-barrel type peeling machine and bark separator.

(G) Effects of the Invention As described above, the present invention includes a rotor 3 which is disposed opposite to the lower opening 2 of the wood container 1 which is open at least at the lower part, and a large number of peeling teeth 5 are arranged at intervals around the outer periphery of the rotor. A scraping tooth 7 is provided protrudingly between the peeling teeth 5 and on the rotation locus of the peeling teeth 5.
is fixed and the scraping teeth 7 are lower than the peeling teeth 5, so the scraping teeth 7 do not interfere with the peeling process of the peeling teeth 5, and the wood is peeled by its own weight. Good peeling can be carried out by applying sufficient pressure to the teeth 5, and the scraping teeth 7 hook the peeled bark near the rear between the adjacent peeling teeth 5, 5 without damaging the wood. Therefore, the peeled bark can be easily and reliably discharged from the notch 6 on the other side, and the peeled bark can be quickly discharged from the wood container 1 to improve the peeling performance, and the peeled bark can follow the wood from the discharge port. It is possible to reduce the amount of bark discharged and significantly reduce the sorting work.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention and related structures, in which Fig. 1a is a developed plan view of one side plate and rotor of the peeling machine, b is a front view of the same, and Fig. 2 is a cross-sectional view. Figure 3 is an enlarged sectional view of the main parts, Figure 4 is a plan view showing the arrangement of the peeling teeth and scraping teeth, and Figure 5 is a side view of an example in which the peeler is connected to the discharge side of the drum barker as a bark separator. , FIG. 6 is a developed plan view of one side plate, rotor and sub-rotor in FIG. 6a, b is a front view of the same as above, FIG. 7 is a longitudinal sectional view, and FIG. A cross-sectional view showing the mounting position of the leather receiving plate, FIG. 9 is a cross-sectional view of the rearmost part, FIG. 10 is a plan view of the main part, and FIG.
Figures a and b are cross-sectional views of a conventional example. 1... Wooden container, 3... Rotor, 5... Stripped tooth, 6... Notch, 7... Scrap tooth, 8... Drum barker.

Claims (1)

[Claims] 1 A rotor 3 is disposed opposite to the lower opening 2 of the wood container 1 which is open at least at the lower part, and a large number of peeling teeth 5 are protruded from the outer periphery of the rotor 3 at intervals, and these peeling teeth 5 are provided. ... and the peeled tooth 5
A bark discharging device for a bark peeling machine, characterized in that a scrap ejecting tooth 7 is fixed on the rotation locus of the peeling tooth 7, and the scrap ejecting tooth 7 is lower than the peeling tooth 5.