JPH0329122Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a debarking device for wood, especially raw wood, and more specifically, a rotary device having inclined protrusions installed horizontally at the lower openings of a pair of side plates with different slopes. The wood is rotated smoothly by a cylinder and moved to one of the side plates, and is exposed inside the side plate through a plurality of openings formed in the side plate, and the wood is rotated by a plurality of rotating disks having inclined protrusions attached to the outer peripheral surface. This invention relates to a wood peeling device that peels the outer skin of wood while assisting in stirring circulation and conveyance.

[Prior Art] When chip logs are debarked as a preliminary step in producing chips, a debarking machine called a drum barker is generally used.

For example, as shown in Japanese Utility Model Publication No. 34-14341, wood (raw wood) lifted up by the rotation of the can falls onto a notch installed inside the can, and due to the friction between the trees. The skin is peeled off.

[Problem that the invention aims to solve] However, with this one, the lifted logs do not evenly hit the notches attached to the can body, but instead
If the lumber is hit at a certain point (especially at both ends), both ends of the lumber will be damaged and the yield will be poor, and because the head is large, a large amount of broken lumber will occur. Not only is the debarking effect less effective as some logs do not hit the tanotsuchi, but
The dropping of logs inside the can causes loud noises, and the flow of input logs is poor, causing the drum to tilt.However, since a large amount of logs are loaded into the can, the support mechanism is large-scale, making it difficult to move the can. There are problems in that a large amount of power is required to rotate it, and the manufacturing cost is also high.

The purpose of this invention is to provide a wood debarking machine that eliminates the above-mentioned problems, reduces energy loss, has a large debarking effect, improves yield, generates less noise, and improves the flow of input logs. It is something to do.

[Means for Solving the Problems] In order to achieve the above-mentioned object, this invention provides a pair of side plates 2a and 2b with different slopes for storing wood W in the machine frame 1, and each of these side plates 2
An elongated lower opening 8 is formed by the notches 16, 16 provided at the lower part of the cylinders a and 2b, and the rotary cylinder 5 having a large number of notches 6 on the circumferential surface is arranged so as to cover the lower opening 8 with its upper part exposed. and the rotating cylinder 5 is connected to each side plate 2a, 2b by the rotating shaft 4.
From the gentle side plate 2a to the steeply sloped side plate 2
b, and a plurality of rotating disks 12, some of which protrude from the openings 15 of the steep side plate 2b to the inner surface of the side plate 2b, rotate in a direction to scoop up the wood W. A plurality of inclined protrusions 13 (hereinafter simply referred to as inclined protrusions 13) are installed horizontally along the rotating cylinder 5 via the rotating shaft 11, and are inclined in the axial direction of the wood W on the outer peripheral surface of the rotating disk 12. ) is provided.

[Example] As shown in FIGS. 1 and 2, the wood peeling device of this invention is provided with a pair of side plates 2a and 2b having different slopes for storing wood W in a machine frame 1, and each of these side plates Notches 16 provided at the bottom of 2a and 2b,
A rotary cylinder 5 having an elongated lower opening 8 formed at 16 and a plurality of notches 6 on its circumferential surface is fitted with bearings 3, 3 and a rotary shaft 4 so as to cover the lower opening 8 with its upper part exposed. The rotating cylinder 5 is connected to each side plate 2a, 2b by the rotating shaft 4.
From the gentle side plate 2a to the steeply sloped side plate 2
A mechanism is provided to rotate it toward b.

Also, the opening 15 at the bottom of the steeply sloped side plate 2b
A plurality of rotating disks 12, some of which protrude from the inner surface of the side plate 2b and rotate in a direction to scoop up the wood W, are installed horizontally along the rotating cylinder 5 via bearings 10 and rotating shafts 11, An inclined protrusion 13 is attached to the outer circumferential surface of the rotary disk 12 to remove the skin while transporting the wood W in its length direction and scooping it up.

Furthermore, a hopper 17 is attached below the rotating cylinder 5 to prevent the peeled skin from scattering.
Gears 19 to 22 are attached to one end of gear shift motor 11 and the output shaft of variable speed motor 18, and power transmission chains 23 and 24 are connected between these gears so that both rotating shafts 4 and 11 rotate synchronously. It's getting old.

The wood debarking machine of this invention is constructed as described above, and when debarking wood, first the variable speed motor 18 is switched on and its rotational speed is adjusted depending on the condition of the input wood (wood species, shape, frozen, dry). A certain amount of wood W cut to a fixed length shorter than the length of the rotary cylinder 5 is exposed from the opening 8 between the side plates 2a and 2b and thrown onto the rotating cylinder 5 under decision control.

A certain amount of wood W that has entered between the side plates 2a and 2b rotates and moves as the rotating cylinder 5 and rotating disk 12 synchronously rotate in the direction of the arrow, that is, in the direction of scooping up the wood W. Inclined protrusion 13
It is scooped up and skinned.

That is, the wood W is attached to the inclined protrusion 1 of the rotary disk 12 by the many notches 6 attached to the rotary cylinder 5.
3 and 13, and the material is fed to the right in FIG. 1, that is, in the axial direction of the input wood W.

At this time, the wood W on the rotating cylinder 5 is lifted almost along the cylinder 5 while rotating on its own axis, and the other pieces of wood on that wood are similarly lifted while rotating on their own axis, and the entire large number of pieces of wood are shown by the arrows in Figure 2. It moves toward the rotating disk 12 while rotating on its own axis, and in combination with the slight axial movement of the wood W by the notch 6 and the peeling action, the pieces of wood W collide with each other and are peeled by friction.

The wood W that has moved as described above is further peeled by the inclined protrusion 13 of the rotating disk 12 and the notch 6 of the rotating cylinder 5, and is gradually peeled from the steep side plate 2b as shown by the arrow a in FIG. It flows down and circulates as if rolling down towards the side plate 2a,
The above-mentioned circular movement accompanied by rotation of the entire wood W, W is performed smoothly.

Also, at this time, the wood W is moved in the axial direction of the rotating cylinder 5 by the rotational force of the notch 6 of the rotating cylinder 5 onto the inclined protrusion 13 attached obliquely to the outer peripheral surface of the rotating disk 12.
The peeling effect is great because the wood is applied evenly, and the wood W moves smoothly in the axial direction due to the inclined protrusion 13 attached obliquely to the outer circumferential surface of the rotating disk 12 and the notch 6 provided on the outer circumference of the cylinder 5. . In addition, since the wood flows smoothly with the rotation and circulation of the entire wood, there is no broken wood, so there is less noise and less power is required.

Furthermore, even if the conditions of the input wood (wood species, shape, freezing, drying) are different, the wood W can evenly hit the rotating disk 12, the inclined protrusion 13, and the notch 6 of the cylinder 5. cylinder 5
can be optimally set so that the speed of rotation can be changed depending on the condition of the wood to be peeled, so it has a great peeling effect even on frozen wood.

[Effect of the invention] This invention was constructed as explained above, so
The effects described below are achieved.

The present invention provides a rotary disk 12 that protrudes into the side plate 2b from an opening 15 of the side plate 2b having a steep slope and rotates.
A plurality of inclined protrusions 13 provided on the outer peripheral surface of the wood W are inclined in a direction in which the wood W is fed in the axial direction of the wood W.
This is because the wood W is rotated upward in the direction of scooping it up and fed while peeling it, and the rotational force of the inclined protrusion 13 causes the wood W to be scooped up as it rotates on its own axis and is scooped up on the gently sloped upper part of the side plate 2a. The material circulates toward the side plate 2a, sinks gently downward and comes into contact with the rotating cylinder 5, and is moved in the direction of the steeply sloped side plate 2b due to the large number of notches 6, 6, and is also fed in the axial direction. , each wood W, W
The material is again scraped up by the inclined protrusion 13 and fed in the direction of its axis, rotates on its own axis and moves towards the upper part of the gentle side plate 2a, and moves circularly as if rolling down on this gentle side plate 2a. Since peeling is performed while the material is being fed in the same direction, the wood can be peeled efficiently without causing unnecessary damage to the product wood, and since no excessive external force is applied to the notch 6 or the inclined protrusion 13, the blade chipping phenomenon occurs. It has a number of effects such as lengthening the lifespan and minimizing energy loss.

[Brief explanation of drawings]

The figures all show an embodiment of this invention; FIG. 1 is a plan view of the peeling machine, and FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. 1... Machine frame, 2a... Side plate with gentle slope,
2b... Steep side plate, 3, 10... Bearing, 4,
11... Rotating shaft, 5... Rotating cylinder, 6... Notch, 12... Rotating disk, 13... Inclined protrusion, 15
...Opening part, 16...Notch, 17...Hopper,
18...Motor, 19-22...Gear, 23,2
4...Chain, W...Wood.

Claims (1)

[Scope of utility model registration request] A pair of side plates 2a, 2b with different slopes for storing wood W are arranged in the machine frame 1, and elongated lower openings 8 are formed by cutouts 16, 16 provided at the lower part of each side plate 2a, 2b. A rotary cylinder 5 having a notch 6 on its circumferential surface is installed horizontally so as to cover the lower opening 8 with its upper part exposed, and the rotary cylinder 5 is connected to each side plate 2a,
A mechanism is provided to rotate the side plate 2b from the gentle side plate 2a to the steeply sloped side plate 2b.
A plurality of rotating disks 12, some of which protrude from the inner surface of the rotary shaft 1, rotate in a direction to scoop up the wood W.
The wood W is installed horizontally along the rotary cylinder 5 through the rotary disk 12, and the wood W
A wood peeling device characterized in that a plurality of inclined protrusions 13 are attached which are inclined in a direction in which wood is transferred in its length direction.