JPS625293Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a wood stripping machine used for stripping construction wood and stripping the bark in a pre-process of manufacturing wood chips.

[Background technology of the invention and its problems]

When using wood for construction or for making chips, it is first necessary to strip the wood. Conventionally, a wood peeling machine used for this purpose has a large diameter rotating drum with a large number of peeling blades protruding from the inner peripheral wall, as disclosed in, for example, Japanese Utility Model Publication No. 34-14341. Many are used to remove the bark from wood by feeding it into the drum while rotating it.

However, in this conventional wood peeling machine, the rotating drum has a large diameter because it peels a large amount of wood at the same time. Therefore, there is a lot of noise and vibration, and there are pollution problems. Furthermore, there was a problem of high equipment costs and power costs.

Therefore, new devices have been developed in recent years. This has a number of comb-like slits formed in the lower wall of the fixed drum, and a rotating shaft with a number of protruding hammers corresponding to the spacing between the slits is placed below the fixed drum. The wood put into the fixed drum is peeled by a rotating peeling blade that enters the fixed drum through each slit at the bottom of the drum as the rotating shaft rotates.

It is true that this wood peeling machine has the advantage of reducing noise and vibration because the drum is fixed. However, since the peeling blade acts like a hammer and strongly strikes the surface of the wood, noise and vibration are not sufficiently reduced. Furthermore, the structure of the rotating shaft on which the peeling blade is provided is complicated, increasing manufacturing costs. Furthermore, the fixed drum requires a large number of long, thin slits in its bottom wall to accommodate each skinning blade, and thick plates must be used for strength, resulting in a significant increase in manufacturing costs. Moreover, as mentioned above, with this method, the peeling blade acts instantly like a hammer, hitting the surface of the wood locally and strongly.
It has the disadvantage of unnecessarily damaging the wood. Furthermore, since there is a tendency to only hit the surface of the wood locally, there is little movement of the wood (rotation or movement of each other), and sometimes there is no movement at all. For this reason, it takes a long time and is inefficient to strip all the wood evenly, and it also tends to result in uneven stripping. In any case, this system still has a drawback of low processing efficiency, resulting in a significant increase in power costs. Furthermore, since the bottom of the rotating drum is a V-shaped straight groove, the inside of the bent material is raised and is less susceptible to the action of the skinning blade, and as a result tends to remain unstripped. On the other hand, when wood was placed vertically into the drum, it was difficult to turn it horizontally, and there was also a risk that the wood would fly away.

[Purpose of invention]

This invention was made with attention to the above circumstances,
The purpose of this is to not only be able to perform a uniform stripping action efficiently, but also with less noise and vibration, and to significantly reduce the required power.
A rotating shaft with a spirally arranged peeling blade automatically and reliably feeds the wood in the hopper to the exit side.
Furthermore, it is an object of the present invention to provide a wood peeling machine which synergistically promotes the above-mentioned peeling action by the rotary shaft body with the above-mentioned peeling blade, thereby making it possible to carry out a more uniform and more efficient peeling action as a whole.

[Summary of the idea]

In addition to a rotary body with a peeling blade that peels the wood while rolling it around the circumference of the wood in the hopper, a rotating shaft body with a peeling blade arranged in a spiral shape is provided, and both of these are used. Synergistically promotes uniform, efficient, and smooth stripping action as a whole, with less noise and vibration, and significantly reduces the amount of power required.The wood that has been stripped is automatically transported to the exit. This is a wood peeling machine that can be fed smoothly.

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, 1 is a hopper, and as shown in FIG. 1, this hopper 1 is formed between a receiving side plate 2 and a sending side plate 3 which face each other. The lower end of the receiving side plate 2 is slightly curved inward, but the other upper portion is erected in the vertical direction. The lower half of the feeding side plate 3 is inclined inward at an angle of about 40 to 45 degrees, and the lumber 5 is fed along the inclined surface 4. The side plates 3 and 4 form a hopper 1 having a substantially V-shaped cross section with a narrow lower part. Furthermore, the bottom of the hopper 1 is provided with the above-mentioned side plates 3,
A lower end opening 6 is formed between the lower end portions of the two. By the way, the above hopper 1 is the second hopper.
As shown in FIG. 3 and FIG. 3, it is relatively elongated and has a total length of, for example, more than ten meters. Furthermore, as shown in FIG. 3, one end in the longitudinal direction is slightly higher than the other end. For example, the inclination angle α is about 3 degrees. One high end serves as an input section 7, and the other low end serves as a take-out outlet 8, and the outlet 8 is provided with a shutter 9 that is vertically movable. Note that the hopper 1 configured in this manner is supported on a stand 11.

On the other hand, the lower end opening 6 is provided with, for example, one rotating body 12 for peeling. That is, this rotating body 12 consists of a long pipe shaft, and a round bar-shaped shaft 1 is attached to each end of the shaft.
4... is installed, and this shaft 14
is pivotally supported by a bearing 15 provided on the stand 11 side. Then, the shaft 14 on the input section 7 side
A pulley 16 is attached to the
A chain 22 is spanned over the. moreover,
This pulley 16 is connected to a pulley 21 on the motor 19 side via a chain 22.

Further, the rotating body 12 is inclined in accordance with the inclination of the hopper 1, and the rotating body 12 is inclined in the longitudinal direction of the lower end opening 6.
That is, they are arranged along the width direction of the side plates 2 and 3. Further, as shown in FIG. 1, the rotating body 12 is disposed such that its upper outer circumferential surface enters into the lower end opening 6 and covers the lower end opening 6.

As shown in FIG. 1, on the outer circumferential surface of the rotating body 12, there are a large number of peeling blades 23 made of stepped base members...
are spirally protruded at equal intervals of, for example, 30 degrees. Further, each of the peeling blades 23 is attached with its lower step side facing toward the rotational front of the rotating body 12. Corresponding to the rotation locus of each of the skinning blades 23, the lower edge of each side plate 2, 3 is provided with a comb-tooth relief groove 24 to prevent the skinning blades 23 from coming into contact with it. ing.

Further, near the slope portion 4 of the feed side plate 3, a rotating shaft body 25 with a spiral peeling blade is disposed along the lateral direction of the feed side plate 3. That is,
As shown in FIG. 1, this rotating shaft body 25 is located on the back side of the feed side plate 3, and is further arranged parallel to the rotating body 12. Also, the wood 5 is rotated around the rotating shaft 25 by the rotation of the rotating shaft 25.
A plurality of peeling blades 26 are provided protrudingly arranged in a spiral shape in a direction to transfer the ... to the exit 8 side. Each of these peeling blades 26... is a disk 27.
..., and the disks 27... are attached at regular intervals in the axial direction of the rotating shaft body 25. In addition, a large number of notch holes 28 are provided in the feeding side plate 3 corresponding to each disc 27...
. . . are formed, and the peeling blades 26 . . . project into the hopper 1 from the notch holes 28 . As shown in FIG. 2, each of the peeling blades 26 is oriented so that the blades are oriented along the spiral arrangement direction.

Further, a pulley 29 is provided at one end of the rotating shaft body 25.
is attached and fixed, and the above-mentioned chain 22 is stretched around this pulley 29 so that it can be rotated by the motor 19.

Note that 31 is a shooter connected to the outlet 8, and 32 is a take-out conveyor for sending out the wood 5... that has been taken out.

Next, the operation of the wood peeling machine having the above structure will be explained.

First, when the motor 19 is operated, the pulley 1
The rotational force is transmitted to each rotating body 12 and rotating shaft body 25 through the transmission system of 6, 29 and chain 22, and each rotating body 12 and rotating shaft body 25
Rotate in the same direction indicated by the arrows as shown in the figure. The rotating body 12 rotates in a direction in which its upper outer peripheral surface moves from the sending side plate 3 side toward the receiving side plate 2 side. In addition, the discharge conveyor 25 and the take-out conveyor 27
also operate.

In this state, wood (logs) 5... are successively introduced into the hopper 1 from the input section 7. However,
As shown in FIG. 1, the wood 5 that has fallen due to its own weight rides on the upper outer peripheral surface of each rotating body 12 and moves toward the receiving plate 2 while rotating. At this time, the surface of the rotating wood 5 is scraped up one after another by the peeling blades 23 on the rotating body 12, so that the entire surface of the wood 5 is stripped. In this way, the wood 5 is rotated and at the same time its skin is peeled off while the receiving plate 2
When it reaches this point, it is pushed up by the wood 5 coming from behind, and moves towards the feed side plate 3 over the wood 5 in the lower row. In other words, it circulates within the hopper 1 as shown in FIG. At this time, they rub against each other and the skin is peeled off. Furthermore, since the hopper 1 is inclined, the skin is further peeled while repeating its circular movement, and the skin is sequentially moved toward the take-out portion 8 side.

Further, since the peeling blades 23 are spirally protruded from the outer peripheries of the rotating bodies 12 and 13, they are smoothly transferred from the input section 7 of the hopper 1 to the take-out section 8 side by the action of the feed screw.

In this way, the wood 5... is subjected to the peeling action while circulating within the hopper 1.

On the other hand, in addition to this effect, in the present invention, by rotating the rotating shaft body 25 provided on the feed side plate 3 side, the peeling blades 26 provided thereon cut out the notch holes 28 .
It protrudes into the hopper 1 and hits the wood 5, forming a groove in its skin and stripping the skin at the same time. That is, the skinning action is performed by the skinning blades 26 provided spirally on the circumferential surface of the rotating shaft body 25.
Furthermore, since the peeling blades 26 are sequentially shifted in a spiral pattern, the wood 5 is moved toward the exit 8 side at the same time as the peeling action. By this movement, the pieces of wood 5 are easily disturbed, and the peeling action by the rotating body 12 is uniformly applied to the entire piece of wood 5. That is, this rotary shaft body 25 carries out the peeling action of the rotary body 12 while rolling the wood 5 on its peripheral surface.
The wood 5... is peeled uniformly over the entire surface, and the wood 5... is actively stripped using the peeling blade 26 provided on itself. Therefore, uniform peeling can be carried out efficiently throughout.

The wood 5 stripped in this way reaches the outlet 8 by the action of the rotating shaft 25. This state is observed from the upper opening of the hopper 1, and when the peeling is completed, the shutter 9 is lowered by a shutter drive mechanism (not shown) to open the outlet 8. As a result, the wood 5 . . . is delivered to the takeout conveyor 32 via the shutter 31.

Further, the skin generated by the above-mentioned peeling is removed from the rotating body 12.
As it rotates, it falls onto the discharge conveyor below and is discharged from the device.

In addition, in the case of curved wood 5..., the curved concave side surface cannot be peeled off using a conventional cylindrical drum, but with the device of the present invention, as shown in FIG.
... now straddles the rotating body 12,
The skin is easily peeled off by the protruding peeling blade 23, and the workability is improved.

In the above embodiment, the upper part of the hopper 1 is opened over its entire length, but a lid may be attached to the middle part excluding the input section 7 and the output section 8. Moreover, the take-out part 8 is not provided with a vertically movable shutter 9, but a part of the receiving side plate 2 is formed so as to be freely openable and closable.
The stripped wood 5 may also be taken out from the side.

In addition, although the above embodiment shows a structure in which one rotating body is arranged side by side, it is also possible to have two or more rotating bodies, or a structure in which each rotating body is connected in a straight line through a bearing or the like. In this case, it is better to install the motors on both sides.

In addition, the shape of the peeling blade is not limited to the step-like shape.
The most suitable shape may be selected depending on the wood material, etc.

The peeling blade provided in a spiral shape on the rotating shaft may be provided continuously in a spiral shape. Furthermore, the rotating shaft may be disposed on the receiving side plate 2 side or within the hopper.

[Effect of idea]

As explained above, the present invention installs a rotating body at the lower end opening of the hopper into which wood (logs) is input, and also provides the rotating body so that the upper outer circumferential surface covers the lower end opening. The outer circumferential surface of the hopper has a number of protruding stripping blades that scrape up the wood inside the hopper. Therefore, the wood put into the hopper is given a sufficiently strong rotational force by the upper outer circumferential surface of the rotating body and rolls, causing the wood to rub against each other and at the same time, the above-mentioned skinning blade exerts a peeling action. receive. Therefore, each piece of wood is stripped uniformly throughout, increasing the efficiency of stripping and significantly reducing power costs.
In addition, since the wood reliably rolls and circulates smoothly within the hopper, it is possible to continuously and efficiently strip the bark without causing a so-called clogging phenomenon or causing the wood to fly away.

Furthermore, the present invention has a rotating shaft with peeling blades arranged in a spiral shape, which synergistically promotes the above-mentioned peeling action and improves the ability to peel the wood more uniformly. be able to. In addition, the wood can be smoothly moved to the exit side without becoming clogged on the way, and the capacity can be improved.

Furthermore, the present invention provides the following effects.

First, since it has a simple structure consisting of a combination of a hopper and a peeling rotary body, it is easy to manufacture and maintain and inspect, and the equipment cost can be reduced to about one-fourth of that of the conventional rotating drum type.

In addition, since the hopper is a fixed type, noise and vibration are extremely low compared to rotating drum types.
Even when the top is open, it is almost as quiet as a fixed drum type.

In addition, by opening part or all of the top of the hopper, the flow of logs is smoother than with conventional rotating or fixed cylindrical drums, and the peeling status can be easily checked from the outside, making control easier. Even if wood gets stuck in the middle, it can be easily removed and the work is easy.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a wood peeling machine according to an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front sectional view thereof, and Fig. 4 is an explanatory diagram showing a certain debarking state. be. 1... Hopper, 2... Receiving side plate, 3... Feeding side plate, 5... Wood, 6... Lower end opening, 12... Rotating body, 23... Skin stripping blade, 25... Rotating shaft body, 26
...Debarking blade.

Claims (1)

[Claims for Utility Model Registration] (1) A hopper formed between a pair of side plates facing each other, having an outlet on the widthwise side of the side plates, and a lower end opening between the lower ends of each of the side plates; A rotary body is disposed along the width direction of the side plate at the lower end opening of the hopper and rotates with an upper outer circumferential surface covering the lower end opening, and a rotating body is provided protruding from the outer circumferential surface of the rotary body. When the rotary body rotates, there are a number of peeling blades that scrape up the wood in the hopper, a rotary shaft body facing into the hopper and arranged along the width direction of the side plate, and a peripheral surface of the rotary shaft body. A wood peeling machine characterized by comprising a peeling blade that protrudes and is spirally arranged around the rotating shaft in a direction in which the wood is transferred to the exit side by rotation of the rotating shaft. (2) A request for registration of a utility model characterized in that the rotating shaft with the spiral peeling blade is provided near the plate surface of at least one side plate, and only the peripheral surface thereof is exposed from the plate surface into the hopper. The wood peeling machine according to item 1.