JPS6140105A - Barking method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a method for peeling the bark of logs.

(B) Prior art Conventionally, a rotary shaft is installed in the lower part of a wood storage body horizontally hung on a frame, parallel to the wood storage body, and a number of beating bodies are pivotally connected to the rotation shaft, and the beating bodies are connected to the wood. A method of peeling is such that the wood is passed through a slit drilled on the lower surface of the storage body, the wood is put into one end of the wood storage body, the wood is peeled by the beating body, and the wood is peeled while being transferred to the other end and discharged. Already known.

Furthermore, a one-type drum barker is already known in which wood is input through an input port provided at one end of the drum and the wood is peeled before it reaches an exit port at the other end.

Furthermore, a ring barker is already known in which the wood is passed through the center hole of a rotating ring and stripped using a stripping blade attached to the arm of the ring.

(C) Problems to be Solved by the Invention The above-mentioned method for debarking using a beating body and method for debarking using a drum barker method can debark short pieces of wood such as pulp chips, but they can debark short pieces of wood such as pulp chips. In order to complete the debarking process by feeding a long piece of wood from one end of a wood container or drum, moving it from one end to the other end, and then discharging it, the wood container, etc. must be significantly It has to be formed into a long piece, and the equipment itself becomes large and expensive, and requires a vast installation space.
It was not used for stripping long timbers.

In this regard, the ring barker is capable of debarking long pieces of wood, but it requires a driving device to rotate the ring, a control device to swing the arm to press the ring against the outer circumferential surface of the wood, and a support frame for the ring. It requires a control device to lift and lower the wood to match the diameter of the wood, as well as a conveyance device that feeds the wood while accurately centering it in the center of the ring, and although it is extremely expensive, it is possible to only debark one tree at a time. It could not be treated and the cost of peeling became expensive.

(d) Means for solving the problem In order to solve the above-mentioned drawback, a part of a cylindrical rotating body having a large number of peeling teeth on the outer circumferential surface is exposed to the lower opening of the wood storage body, and the drum Rotating the drum produces less noise and less damage to the wood than the hammering method or the drum barker method, but it requires a long device to debark long materials, which does not solve the above-mentioned drawbacks. I couldn't do that.

Therefore, after further research, we formed a large number of peeling teeth fixed to the outer circumferential surface of the rotating body into a mountain shape with a higher middle part, and serrated teeth on the outer circumferential surface on the front and rear sides in the direction of rotation. When the rotating body is intermittently rotated in the forward and reverse directions, the wood moves from one end of the wood container to the other while being peeled, and when it is subsequently rotated in the opposite direction, it moves in the opposite direction from the other end to the other end. By repeating these forward and reverse rotations at intervals of processing time depending on the time of felling the timber or the difficulty of debarking, such as the type of tree, the various known debarking methods described above can be performed. I was able to resolve all the shortcomings.

(e) Operation When a plurality of logs are put into the wood storage body while rotating the rotary body, the barking teeth on the outer periphery of the rotating body push up and roll the logs and peel off the bark one by one. When the log comes into contact with an end surface, a convex part, or a knot, the log is pushed diagonally to its length, causing the log to move back and forth irregularly to one side or the other little by little. The ends abut against one end plate of the wood storage body.

Therefore, if the rotating body is rotated in the opposite direction immediately or after some time, the log may slowly move in the opposite direction while being debarked.If such debarking process is repeated,
The surface of the raw wood is stripped like a spiral weave surface, and it is possible to reliably strip the skin around the recesses and knots.

In addition, when the peeling teeth are deviated from the axial direction of the rotating body, the oblique plate surface of the peeling teeth pushes the end face or uneven part of the log in one direction depending on the rotation direction, and the log moves back and forth. can be carried out more reliably.

(f) Example To explain an embodiment of the present invention with reference to the drawings, ■ is a wood storage body (hereinafter referred to as storage body) horizontally suspended on the machine base 2.
The length is less than twice the length of the raw wood to be sawn into pillars or boards, preferably 1/3 of the length of the raw wood.
The hopper is approximately 115 mm long, and an opening 3 extending approximately the entire length is formed in the lower part thereof, and an open hopper is formed in the upper part.

Further, the lower part of the side wall of the storage body 1 is symmetrical as shown in FIG. The portion 3 is provided with a number of notches 8 and fists through which skinning teeth 6, which will be described later, pass.

Further, the rotating body 5 has a drum-like structure and is supported pivotally with its upper part fitted into the opening 3, and the outer circumferential surface of the rotating body 5 has grooves on its upper and lower sides in the rotational direction, respectively. The six lowered mountain-shaped peeling teeth are either welded into a spiral shape or attached removably with bolts.
The outer edges of the peeling teeth 6 are engraved with saw blade-like teeth 6a.

As shown in FIG. 1, the skinning teeth 6 are inclined when viewed from the direction perpendicular to the axis of the rotating body 5, and each of the skinning teeth 6 extends from the notch 8 on the negative side. It enters into the storage body 1 and escapes to the outside through the notch 8 on the other side.

Further, the rotating body 5 is rotationally driven by a motor 7,
The motor 7 rotates in forward and reverse directions in order to reciprocate in the longitudinal direction of the log while peeling the wood, but this forward and reverse rotation is automatically controlled or manually stopped once and then immediately rotated in the forward or reverse direction.

Furthermore, the lower part of the side wall of the storage body 1 is formed into an opening/closing plate 1a, and since the lower or upper part of the opening/closing plate 1a is hinged, it is opened when the peeling process is completed to discharge the wood.

In the above-mentioned debarking machine, when a large number of long logs for lumber are inputted from the upper opening of the storage body l using the input conveyor or forklift while the rotating body 5 is rotating in one direction, the debarking teeth 6 ... enters into the storage body l from the notch 8 at the lower part of one side of the storage body l and escapes from the notch 8 on the other side. When the wood passes the top of the peeling teeth 6, it descends and is peeled by the teeth 6a of the descending inclined portion on the lower side in the rotational direction.

The logs that have moved from one side to the other are successively pushed up by subsequent logs and rolled toward the one side, and by repeating this cycle, the debarking process is performed.

Meanwhile, since the plate surface of the debarking tooth 6... is deviated, if it overlaps with the end surface of the log in front in the rotation direction, unevenness or knot-like protrusions on the bark surface, the log will be gradually removed in the length direction. The end faces of most of the logs are finally joined to the end wall of the storage body l.

At that time, the motor 7 is switched off to stop the rotary body, and then the motor 7 is rotated in the opposite direction, the rotary body 5 also rotates in the opposite direction, and since the peeling teeth 6 are chevron-shaped, the other inclined part pushes up the log. While peeling, the other board surface is moved in the opposite direction, and the other end surface of the log comes into contact with the other end surface of the storage body 1. At this time, the motor 7 is rotated in the reverse direction in the same manner as described above.

When the peeling process of reciprocating the log is repeated and the peeling is completed, the opening/closing plate 1a is opened and the peeled log is discharged to the side.

In the final debarking process, when the end plate of the storage body 1 is configured as an opening/closing plate 1a, when this is opened, the logs are sequentially removed from one end of the storage body 1 in the length direction of the log, as in the conventional pounding body method. It is discharged.

The above-mentioned peeling machine is suitable for peeling long pieces of material, but it can also be used for peeling short pieces of material for chips.

In this case, an opening/closing plate is also provided on the end plate of the storage body 1, and the rotating body 5 is rotated so that the peeling teeth 6 transfer the raw wood toward the opening/closing plate.

FIG. 4 shows another embodiment of the storage body 1, in which the cross-sectional shape is tapered to widen at the top, and at least one side wall is configured as an opening/closing plate 1a. The pivot portion 1c of the opening/closing plate 1a may be located either at the upper or lower side of the side wall in this example as well as in the hinge portion 1b of the previous embodiment.

FIGS. 5 and 6 show still another embodiment of the storage body 1 and the skinning teeth 6, in which the storage body 1 has a side wall separated by an interval in which two to three skinning teeth 6 pass. Many longitudinal bones A-・
and a plurality of transverse bones B that connect them and form the horizontal rim of the notch 8.

Further, both the vertical frame A and the horizontal frame B are made of angle materials, and iron plates 9 are blast-bonded to the inner surfaces of both ends of the side walls, and the width of the iron plate 9 in the horizontal direction is equal to that of raw wood. When one end reaches the end plate on that side, the other end of the log reaches the end plate 9 on the other side.
Similar to the example shown in FIG. 1, the lower edge of this iron plate is provided with a narrow notch through which each skinning tooth 6 and ψ pass separately.

Even if the long timber moves in the length direction of the rotating body 5, the end of the log will not face the side wall in the middle part of the storage body 1, so even if it is in that position or diagonally, the end If the storage body l is constructed from vertical and horizontal angle members as described above, there is no fear that the parts will protrude to the outside.

The peeled bark can be efficiently discharged from a wide space, the peeling efficiency can be improved, and the cost can be significantly reduced.

Further, the skinning teeth 6 of this embodiment have a mountain shape similar to the previous embodiment and are arranged spirally on the outer peripheral surface of the rotating body 5, but the plate surface is in the axial direction of the rotating body 5. is orthogonal to
When the rotating body 5 is intermittently driven in the forward and reverse directions in this state, the logs may be in an irregular posture, have knots or irregularities, and have different thicknesses. When the peeling teeth 6 act in the forward and reverse directions, the log repeatedly moves in one direction or the other, and each part can be reliably peeled.

In the embodiments shown in FIGS. 1 to 4 as well, skinning teeth whose plate surfaces are perpendicular to the axial direction of the rotating body 5 may be used as in the above embodiments.

(G) Effects of the Invention Since the present invention is configured as described above, a plurality of logs are put into the wood storage body 1, and the peeling process involves rotating the rotating body 5 in one direction, and the peeling process involves rotating the rotating body 5 in the opposite direction. When this is repeated intermittently, the raw wood will be intermittently moved back and forth in the length direction of the wood storage body l while being debarked by the mountain-shaped peeling teeth 6. Rotating body 5
Multiple logs can be simultaneously and highly efficiently debarked using a debarking machine consisting of the following equipment.

Also, when the debarking teeth 6 push up the log, the log is pushed up by the debarking teeth 6.
The skin can also be peeled when descending along the rear part of the skin, improving the peeling efficiency.

Furthermore, if the plate surface of the peeling teeth 6 is deviated from the axial direction of the rotating body, the reciprocating movement of the raw wood becomes even better, and the peeling efficiency can be improved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the peeling machine, FIG. 2 is a cross-sectional view of the same, FIG. 3 is a front view of the same, and FIG. A cross-sectional view showing an example of
FIG. 5 is a side view showing still another embodiment of the storage body and the peeling teeth, and FIG. 6 is a cross-sectional view of the same. 1. φ Wood storage body 3. Opening 5. Rotating body 6 Φ.
Skinning tooth 7... Motor 8... Notch part Fig. 1 Fig. 2 Fig. 5 β Fig. 6 Fig. 4

Claims (2)

[Claims] (1) An opening is provided at the bottom of the horizontal wood storage body 1 having a raw wood input port at the top, and the upper part of the drum-shaped rotating body 5 suspended horizontally below the opening is inserted into the wood storage body 1 through the opening. A large number of chevron-shaped skinning teeth 6 are attached to the outer circumferential surface of the rotary body 5 and have teeth on the front and rear sides in the direction of rotation, and the rotary body is intermittently rotated in forward and reverse directions. A peeling method characterized by peeling the wood while rotating it and moving it back and forth in the length direction. (2) The peeling method according to claim 1, wherein the peeling tooth is angled with respect to the axial direction of the rotating body so that the end face or uneven portion of the raw wood is pushed by the plate surface of the peeling tooth.