JPH0350685B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for debarking wood, especially raw wood, and more specifically, it relates to a device for debarking wood, particularly raw wood, and more specifically, it relates to a debarking device for wood, particularly raw wood, and more specifically, it relates to a debarking device for debarking wood, and more specifically, a debarking device for debarking a rotary cylinder that is disposed horizontally at the lower opening of a pair of side plates having different slopes. The wood has a shape in which the lower side in the direction of rotation gradually becomes higher, and the wood is smoothly rotated on its own axis by the elongated and narrow protrusion in the direction of rotation, while making circumferential cuts in the skin of the wood and moving it to one of the side plates. A plurality of rotating disks are exposed inside the side plate through a plurality of holes formed in the side plate, and have wide cylindrical projections and wide prismatic projections attached to the outer peripheral surface. This invention relates to a wood peeling device that peels the outer skin of the wood while assisting the conveyance of each piece of wood in the axial direction by a pressing action due to the piled-up gravity of the wood.

[Conventional technology]

When peeling chip logs as a pre-process for producing chips, a peeling 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 seeks to solve]

However, with this one, the lifted logs do not evenly hit the notches attached to the can body;
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. It has drawbacks such as requiring a large amount of power to rotate and also being expensive to manufacture.

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

[Means for solving problems]

The above-mentioned object of the present invention is to provide a machine frame 1 with a pair of side plates 2a and 2b having different slopes for storing wood W, and to provide an elongated lower part with notches 16 and 16 provided at the bottom of each side plate 2a and 2b. A rotary cylinder 5 having an opening 8 formed therein and having a narrow protrusion 6 on its peripheral surface with a shape in which the lower side in the rotational direction is gradually higher is installed horizontally so as to cover the lower opening 8 with its upper part exposed. Further, a mechanism is provided for rotating the rotating cylinder 5 by the rotating shaft 4 from the gentle side plate 2a of the side plates 2a and 2b toward the steeply sloped side plate 2b, and the opening of the steeply sloped side plate 2b is provided. 1
A plurality of rotating cylinders 12, some of which protrude from the inner surface of the side plate 2b from 5 and rotate in the direction of cutting up the wood W, are installed horizontally along the rotating cylinder 5 via the rotating shaft 11. By alternately attaching wide cylindrical protrusions 13 for cutting the wood W and wide prismatic protrusions 14 for widely peeling the wood W to the outer peripheral surface of the rotating disk 12, respectively. achieved.

[Structure of the invention]

As shown in FIGS. 1 and 2, the wood peeling device of the present invention has a machine frame 1 provided with a pair of side plates 2a, 2b having different slopes for storing wood W, and a lower part of the side plates 2a, 2b. Notch 16,1 provided in
6 forms an elongated lower opening 8, and has a plurality of notches 9 and narrow protrusions 6 on the circumferential surface that are elongated in the rotation direction and have a shape that is gradually higher on the lower side in the rotation direction and have a width of about 1 cm and a length of about 15 cm. A rotating cylinder 5 with a diameter of about 50 to 70 cm is installed horizontally through the bearings 3, 3 and the rotating shaft 4 so as to cover the lower opening 8 with its upper part exposed, and the rotating cylinder 5 is placed between the rotating shaft 4 and the rotating cylinder 5. 4, the gentle side plate 2 of each side plate 2a, 2b
A mechanism is provided to rotate from a to the side plate 2b having a steep slope. Also, a portion of the side plate 2b has a diameter 20 which partially protrudes from the opening 15 at the lower part of the steep side plate 2b to the inner surface of the side plate 2b and rotates in the direction of cutting up the wood W.
A plurality of rotating disks 12 of about 30 cm are installed horizontally along the rotating cylinder 5 via bearings 10 and rotating shafts 11, and a plurality of rotating disks 12 of about 30 cm are installed horizontally along the rotating cylinder 5, and a plate for cutting the wood W is placed on the outer peripheral surface of the rotating disks 12. A wide cylindrical projection 13 with a width of 10 cm and a diameter of about 1 cm, and a width of 10 cm and a height of 1 for peeling.
Wide prismatic protrusions 14 with a width of about cm are attached alternately. Further, a hopper 17 is attached below the rotating cylinder 5 to prevent the peeled skin from scattering, and gears 19 to 22 are attached to one end of both rotating shafts 4 and 11 and the output shaft of the variable speed motor 18. Chains 23 and 24 for power transmission are connected so that both rotating shafts 4 and 11 rotate synchronously.

[Action of the invention]

The wood debarking machine of the present invention is constructed as described above, and when debarking wood, the variable speed motor 18 is first turned on and the condition of the input wood (species, shape, frozen, dry state) is determined. The number of rotations is determined and controlled, and a large number of pieces of wood W cut into lengths shorter than the length of the rotating cylinder 5 are fed onto the rotating rotating cylinder 5 exposed from the opening 8 between the side plates 2a and 2b. It will be done.

The large number of pieces of wood W that have entered between the side plates 2a and 2b are first shaped so that as the rotating cylinder 5 rotates in the direction of the arrow in FIG. The narrow protrusions 6 make cuts in the circumferential direction of the outer skin of each piece of wood W as it rotates and is scooped up in the direction of the rotating disk 12, while other pieces of wood are rotated and piled up. The wood W moves in its axial direction, that is, in the discharge direction due to the pressing action of the wood's gravity, is further scooped up by the wide cylindrical projection 13 of the rotating disk 12, and is widely peeled by the wide prismatic projection 14. .

That is, the large number of pieces of wood W are modified by the large number of narrow protrusions 6 and notches 9 attached to the rotating cylinder 5 so that they evenly hit the wide cylindrical protrusions 13 and the wide prismatic protrusions 14 of the rotating disk 12. , moves to the right in FIG. 1 due to the pressing action caused by the input of a large number of pieces of wood W. At this time, when the large number of pieces of wood W on the rotating cylinder 5 are lifted up almost along the cylinder 5 while rotating, their outer skins are scratched by the narrow protrusions 6.
Other pieces of wood on top of that piece of wood are lifted up while rotating in the same way, and the entire large number of pieces of wood are rotated and moved toward the rotating disk 12 as shown by the arrows in FIG. Coupled with the cutting of the wood W and the peeling action of cutting the skin of the wood W in the circumferential direction during this cutting, the wood W,
Frictional peeling begins due to the collision of W. The wood W that has been moved as described above is further carved up by the wide cylindrical protrusion 13 of the rotating disk 12 and is widely and strongly peeled by the wide prismatic protrusion 14, as indicated by arrow a in FIG. As such, the wood flows down from the steeply sloped side plate 2b to the gentler side plate 2a and circulates, and the above-mentioned circulation movement accompanied by the rotation and debarking of the entire wood W, W is repeatedly and smoothly performed. In addition, at this time, the outer skin of each piece of wood W is cut in the circumferential direction by the rotational force of the narrow protrusion 6, which has a shape in which the lower side in the rotational direction of the rotating cylinder 5 is gradually raised, and the outer circumference of the rotating disk 12. A piece of wood W moving in the axial direction of the rotating cylinder 5 is attached to a wide cylindrical projection 13 and a wide prismatic projection 14 attached to the surface.
The peeling effect is large due to the fact that the cylindrical projections 13 hit the wood evenly and the peeling action of the prismatic projections 14 during the wood cutting by the wide cylindrical projections 13, and the pressing action of the large number of logs by the input of the wood W allows the wood W to be removed smoothly. moves in the axial direction, and the peeled product is discharged from the discharge port. 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.

Also, even if the conditions of the input wood (tree species, shape, frozen, dry, etc.) are different, the wood W may be the rotary disk 12, the wide cylindrical protrusion 13, the wide prismatic protrusion 14, and the protrusion 6 of the cylinder 5. In order to hit the notches 9 according to the condition of the wood, the rotational speed of the rotary disk 12 and the rotating cylinder 5 can be optimally set so that the speed can be changed according to the condition of the wood to be peeled. However, it has a great peeling effect.

〔Effect of the invention〕

As described above, this invention has a structure in which the machine frame 1 is made of wood W.
A pair of side plates 2a, 2b with different slopes are provided to house the side plates 2a, 2b.
A rotary cylinder 5 having a narrow protrusion 6 on its circumferential surface and having a shape in which the lower side in the rotation direction is gradually higher is placed horizontally so as to cover the lower opening 8 with its upper part exposed, and A mechanism is provided for rotating the rotating cylinder 5 by the rotating shaft 4 from the gentle side plate 2a of the side plates 2a and 2b toward the steeply sloped side plate 2b. A plurality of rotary disks 12, some of which protrude from the inner surface of the side plate 2b and rotate in the direction of cutting up the wood W, are installed horizontally along the rotary cylinder 5 via the rotary shaft 11, and Wide cylindrical protrusions 13 for cutting the wood W and wide prismatic protrusions 14 for widely peeling the wood W are alternately attached to the outer peripheral surface of the disk 12, so that Transport, circulation, rotation, and especially debarking of wood are carried out smoothly,
While peeling a large number of input woods without tilting the entire rotating cylinder, it is possible to flow little by little toward the axis to the discharge port due to the pressing action of the gravity of these many input woods. The wood does not hit the protrusions 14 and the wood does not flow without being peeled, and the two functions of peeling and flowing the wood can be harmonized and efficiently peeled, and during this time the vertical movement of the wood is prevented. It has the excellent effect of being able to easily debark frozen wood with less noise because it performs rotation, scraping, friction, and scratching.

In addition to the above-mentioned effects, this invention has a wide cylindrical protrusion 13 and a wide prismatic protrusion 14 which are provided so as to protrude and rotate into the side plate 2b from the opening 15 of the side plate 2b, which has a steep slope. Since the structure is such that the wood W is peeled while being rotated in the direction in which the wood W is cut upward, the narrow protrusion 6 of the rotating cylinder 5
No unreasonable force is applied between the wood W and the wood W, and the wood W rotates on its own axis due to the rotational force of the wide cylindrical protrusion 13 and the wide prismatic protrusion 14, and the wood W is machined while the protrusion 14 The protrusion 6, the wide cylindrical protrusion 13, and the wide prismatic protrusion 14 are formed on the product wood itself, which is important because it is peeled off and circulated from the upper right side to the leftward downward direction as shown by the arrow a in Fig. 2.
This has the effect of not causing any damage.

Furthermore, since the side plate 2a has a gentle slope, each piece of wood W, W sent from the right side in FIG. 2 as shown by the arrow a in FIG. While sinking gently downward along the gently sloped side plate 2a, it comes into contact with the rotating cylinder 5, and moves in the direction of the steeply sloped side plate 2b while cutting the wood surface in the circumferential direction with the narrow protrusion 6. The skin is again peeled off by the wide cylindrical projection 13 while rotating and circulated from the upper right side to the lower left side as shown by the arrow a in FIG. This process also has the effect of efficiently debarking the product wood without causing unnecessary damage.

Furthermore, in addition to not damaging the product wood, no excessive force is applied to the wide cylindrical protrusion 13, the wide prismatic protrusion 14, the narrow protrusion 6, and the notch 9, which prevents the blade from chipping. It also has the advantage that the life of the wide cylindrical projection 13, the wide prismatic projection 14, the projection 6, and the notch 9 can be extended as much as possible.

In addition, the present invention has the above-mentioned three great advantages as well as the effect that no excessive force is applied to the wide cylindrical protrusion 13, the wide prismatic protrusion 14, the narrow protrusion 6, and the notch 9, so there is no wastage of energy. It also has

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIG. 1 is a plan view of a peeling machine, and FIG. 2 is a sectional view taken along line A--A in FIG. 1. 1... Machine frame, 2a... Gentle slope side plate, 2b
... Steep side plate, 3, 10... Bearing, 4, 11... Rotating shaft, 5... Rotating cylinder, 6... Narrow protrusion with a shape that gradually becomes higher on the lower side in the rotation direction, 8... Lower opening,
12... Rotating disk, 13... Wide cylindrical projection, 14...
Wide prismatic projection, 15...opening, 16...notch,
W...Wood.

Claims (1)

[Claims] 1. A pair of side plates 2a, 2b having different slopes for storing wood W are arranged in the machine frame 1, and an elongated lower opening 8 is formed by cutouts 16, 16 provided at the lower part of each side plate 2a, 2b, A rotating cylinder 5 having a shape in which the lower side in the rotation direction is gradually higher and having a narrow protrusion 6 on the circumferential surface is installed horizontally so as to cover the lower opening 8 with its upper part exposed, and the rotating cylinder 5 is A mechanism is provided for rotating the side plate 2a from the gentle side plate 2a of the side plates 2a and 2b toward the steeply sloped side plate 2b by means of a rotating shaft 4, and the inner surface of the side plate 2b is rotated from the opening 15 of the steeply sloped side plate 2b. A plurality of rotary disks 12, some of which protrude from the surface, rotate in the direction of cutting up the wood W, are installed horizontally along the rotary cylinder 5 via the rotary shaft 11, and the outer periphery of the rotary disks 12 is A wood peeling method characterized in that wide cylindrical protrusions 13 for cutting the wood W and wide prismatic protrusions 14 for widely peeling the wood W are alternately attached to the surface. Device.