JPH0338965B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, a notch is provided in the lower part of a storage body supported on a machine frame, and a rotating body provided below the notch rotatably pivots a striking body that enters the storage body through an opening. It is already known to remove the skin by pounding the wood that has been worn and stored.

However, since the above-mentioned debarking machine strongly strikes the peripheral surface of the wood with the striking body, the wooden part may be damaged and the driving part of the striking body may be damaged due to the impact. The idea is to strip the wood and circulate the wood, but when a heavy, thick piece of wood is struck, the reaction from the impact causes it to return in the opposite direction to the direction of rotation, so the wood cannot be circulated. It did not rotate, and although the woody parts were damaged on one side, there were some parts that were not peeled off on the other side.

In addition, a peeling machine in which an opening is provided at the bottom of the storage body, the top of a rotating cylinder is exposed to the opening, and a number of protrusions or peeling blades are protruded from the outer peripheral surface of the cylinder is disclosed in Swedish Patent No. 181464. This is already known from the specification or Japanese Utility Model Publication No. 48-4743.

However, since the above-mentioned known peeling machine only scratches the surface of the wood with the tip of the protrusion or the peeling blade, it has the disadvantage of poor rolling and circulation when dealing with large-sized and large-diameter wood. Ta.

The present invention is aimed at improving the above-mentioned drawbacks, and the purpose of the present invention is to provide a large number of cutouts along the length of the storage body fixed to the machine frame, the lower part of which is open so that a peeling plate can pass through the lower part of the storage body. A plurality of rotary bodies are provided at intervals in the horizontal direction, rotary bodies are provided in parallel at the lower part of the housing body, and a peeling board is fixed to the outer periphery of the rotary body for penetrating into the housing body through the notch and peeling off the bark of the wood, The outer periphery of the peeling plate is composed of parts whose distances from the center of rotation of the rotating body are gradually increased and parts whose distances are successively smaller, and the outer peripheral surface of the peeling plate is provided with a large number of unevenness. be.

Hereinafter, the embodiment shown in the drawings will be described in more detail. FIGS. 1 and 2 show an example of the relationship between the peeling plate and the storage body, in which 1 has a hopper 2 at one end upper part, It is a storage body with a discharge port 3 at the end, a circumferential opening 4 is bored in the lower part, and it is hung horizontally on a machine frame 5 so that the discharge port 3 side is lower. .

Reference numeral 6 denotes a rotating shaft constituting a rotating body supported below the storage body 1, and a triangular peeling plate 7 is fixed to the outer periphery of the rotating shaft with a screw.
The corner portion 7a is shaped like an arc with a small radius, and the space between the adjacent corners 7a is shaped like an arc with a large radius of curvature.
b, and a large number of peeling protrusions 7c are formed on its entire circumferential surface.
...is provided.

Further, the part where the distance between the outer periphery of the peeling plate 7 and the rotation center axis is the smallest is approximately aligned with the opening 4 or slightly protrudes into the opening 4, and the larger part is It enters into the storage body 1 through the opening 4 and pushes up the wood.

8a is a scrap cutting blade screwed onto the end of the scraping side of the opening 4, and is used to scrape out wood chips by the peeling plate 7;
Or cut the bark.

Next, other examples of the peeling plate 7 will be explained with reference to FIGS. 3 and 4. FIG. 3 shows an example in which the peeling plate 7 is oval, and the example shown in FIG. The plate 7 is attached to the rotating body 6 at an eccentric position, and each of the plates 7 has a large number of protrusions 7c on the outer peripheral surface.
...is attached.

In the above-mentioned embodiment, when the peeled wood is fed from the hopper 2 by an appropriate means and the rotating shaft 6 is rotated, the peeling plate 7... has the smallest distance from the rotation center at point A, and the distance from the center of rotation is the smallest at point B. The fact that it is the largest and that it is integrated with the rotating body 6 means that while the wood is forcibly pushed up by A-B, the bark is forcibly scratched by the protrusions 7c on the outer periphery. Then, with the wood firmly supported, push up and rotate it upward from one side to the other. Between B and A, the distance from the center of rotation gradually decreases, and the wood gradually lowers as it descends under its own weight. The skin is peeled off by the protrusions 7c on the parts.

The wood subjected to the peeling and rolling action is pushed up to the left in the drawing by parts where the distance from the center of rotation of the peeling plate 7 increases and decreases sequentially, and then moves upward to the right. As a result of this circulation, a uniform peeling action is rapidly applied to the entire circumferential surface of the wood, and the wood is sequentially transferred to the discharge port 3 and discharged.

It should be noted that even if the peeling plate 7 shown in the embodiment shown in FIGS. 2 and 3 is composed of only a portion whose distance from the center of rotation changes from small to large to small, the same peeling action and rolling can be achieved. Circulatory effects can be obtained.

As described above, the present invention provides a large number of cutouts at intervals in the length direction of the storage body, the lower part of which is open so that the peeling plate can pass through, in the lower part of the storage body fixed to the machine frame. Rotating bodies are provided in parallel at the lower part of the rotary body, and a peeling plate that enters into the storage body through the notch and peels the wood is fixed to the outer periphery of the rotary body, and the outer periphery of the peeling plate is set as the center of rotation of the rotary body. It consists of parts where the distance of
Since the outer circumferential surface of the peeling board is provided with a large number of irregularities, the peeling board, which rotates together with the rotating body, performs a peeling action and a turning action on the wood both in the process of pushing up the wood and in the process of lowering it, thereby circulating it within the storage body. Therefore, even if the wood is large in diameter and heavy, rolling circulation can be ensured, and the bark on the entire circumference can be stripped with high efficiency without damaging the surface layer of the wood.

It goes without saying that the present invention can be modified as appropriate within the scope of the claims.

[Brief explanation of drawings]

The drawings show one embodiment of the invention,
FIG. 1 is a side view schematically showing the peeling machine, FIG. 2 is a cross-sectional view of the same, and FIGS. 3 and 4 are front views showing other examples of the peeling plate. 1... Storage body, 4... Opening, 6... Rotating shaft,
7... Peeling board.

Claims (1)

[Claims] 1. A large number of notches with open bottoms are provided at intervals in the length direction of the storage body so that the peeling plate passes through the lower part of the storage body fixed to the machine frame, and a rotating body is installed at the bottom of the storage body. Peeling plates are installed in parallel and fixed on the outer periphery of the rotary body to penetrate into the storage body through the notch and peel the wood, and the distance between the outer periphery of the peeling plates and the center of rotation of the rotary body gradually increases. 1. A peeling machine, characterized in that the peeling plate has a plurality of irregularities on its outer circumferential surface, the peeling plate having a plurality of concave and convex portions.