JPS61158402A - Continuous type wood barker - 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 [Field of Industrial Application] The present invention relates to an improvement in a continuous wood debarking machine used for debarking construction wood or in a pre-process for producing wood chips.

First you need to peel the skin. Conventional continuous wood debarking machines are often used, for example, in which a large number of debarking blades are protruded from the inner wall of a large-diameter rotating drum, and the wood put into the drum is debarked while the drum is rotating. ing.

However, since this debarking machine debarks a large amount of wood at the same time, the drum has a large diameter and is large in size.Moreover, since the drum and the wood fed into it are rotated at the same time, there is a large amount of noise and vibration, resulting in pollution problems. In addition, there was the problem of high equipment and power costs.

For this reason, in recent years, a number of skinning blades corresponding to the spacing of the slits are installed below a fixed drum having a number of comb-like slits in its lower part, and a skinning rotary body is installed on a shaft provided on the outside of the drum. A device has also been developed in which wood placed in a fixed drum in which one or three wood pieces are arranged is peeled by a peeling blade that rotates inside the drum through a slit at the bottom of the tram by the rotation of the peeling rotor.

However, since this peeling machine has a fixed drum into which the wood is fed, noise and vibration are reduced, but the structure of the peeling rotor, which has a shaft with many peeling blades attached in the form of fins, is complex and equipment costs are high. . Moreover, the drum must have many slits drilled in the bottom to accommodate the skinning blades, making slitting a hassle and requiring the use of thick plates for strength.Furthermore, it is time-consuming to oil and inspect the equipment. There are drawbacks such as.

In addition, with the above structure, the rotational peripheral speed of the peeling blade is 140 m/
There were problems such as the high speed of about a minute, requiring a large motor, and the peeling efficiency was not sufficient.

For this reason, the present inventor has developed a storage body that is formed into a substantially V-shaped cross section by a lower receiving side plate and an inclined sending side plate, and has a continuous opening along the longitudinal direction at its lower end, and a large number of storage bodies. We developed a continuous wood peeling machine consisting of a peeling plate protruding from the outer periphery of the pipe shaft and a peeling rotor whose upper part was inserted so as to close the lower end opening of the storage body, and we applied for a patent earlier. (Patent application No. 58-125144).

This debarking machine allows the wood placed in a fixed container to fall onto the feeding side plate under its own weight, and is scraped up by the rotation of the debarking rotor, and then peels the wood as it rolls inside the container. The concept of the conventional peeling machine is changed, and the lower end of the storage body is made into one continuous opening, and a peeling rotary body is provided to close this opening.

This structure is simpler and easier to maintain than conventional ones, has a high peeling efficiency, is low in power and equipment, and has various effects such as low noise and vibration.

[Problem that the invention seeks to solve]

Aiming to further improve the stripping efficiency, the present invention has been developed as a result of research into the mounting state of the stripping blade protruding from the rotating body, and has developed a continuous stripping blade that can strip long bent materials more efficiently than conventional structures. This is a type of wood peeling machine developed.

[Means for solving problems]

Figures 1 to 5 show an embodiment of the present invention. In the figures, l is a storage body, and the lower end of the storage body l is slightly curved inward as shown in Figure 1. A receiving side plate 2 that stands upright in the vertical direction, and a sending side plate 3 whose lower end side is inclined at an angle of about 40 to 45 degrees are combined to have a substantially V-shaped cross section, and one opening continuous along the longitudinal direction is formed on the lower end side. A section 4 is formed, one longitudinally translucent end is an input section J5, and the other low end is an ejection section 7 in which a shutter 6 is provided so as to be movable up and down.

The storage body 1 has a total length of, for example, more than ten meters, and is supported on a stand 8 at an angle of about 3 degrees.

9 is a peeling rotary body, which is attached to the outer periphery of the pipe shirt) IO.
As shown in FIGS. 4 and 5, a plurality of step-shaped peeling blades A are spirally protruded at intervals of 60 degrees. In this case, the skinning blade A has three skinning blades A1 and A arranged side by side in a series, and three skinning blades A2, AL and A that are 60 degrees out of phase in the lateral direction. They are arranged side by side in a series, and as a whole, they are divided into 3 series and 6 parts and protrude in a spiral shape. Also, peeling blade A
, . . . The array rotates once to Ab, and the distance between the primary skinning blade and the first skinning blade A, that is, the skinning blades A of the same phase adjacent to each other along the longitudinal direction of the rotating body 9, . . .・It has been done.

As shown in FIG. 1, this peeling rotary body 9 is partially inserted so as to close the lower end opening 4 of the storage body 1, so that the upper side of the peeling rotary body 9 is approximately one-fourth of its outer circumference. It is installed at a slight slope along the Round rod-shaped shafts 7) 7/ are attached to both ends of the peeling rotary body 90, supported by bearings 12, and one end thereof is connected to a motor 15 by a chain 14 via a reduction gear 13.

In addition, the inner edges of both the receiving side plate 2 and the opening 40 of the sending side plate 3, which constitute the storage body 1, are arranged at a pitch so that the peeling blades A, . . . A comb-like groove 16 is formed corresponding to the groove.

17 is a conveyor provided below the peeling rotary body 9;
The skin peeled off from the wood 18 is transported and taken out of the apparatus. A shooter 120 disposed in front of the shutter 6 of the take-out section 7 is a conveyor.

[Effect]

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

When the motor 15 is driven, rotational force is transmitted via the chain I4 and the reduction gear tJ, and the peeling rotary body 9 rotates in the direction of the arrow as shown in FIG.

In this state, when the wood 18 is sequentially introduced into the storage body l from the input part 5, the storage body is installed at an angle! As the peeling rotary body 9 rotates, it rotates and moves toward the extraction section 7 side. In this case, as shown in FIG. 1, one side of the upper part of the peeling rotary body 9 is inserted so as to close the lower end opening of the storage body l, which has a roughly V-shaped cross section, and rotates in the direction of the arrow. The surface of the wood 18 is stripped while being scraped up by a plurality of protruding stripping blades...A4. on the other hand,
Storage body! The wood 18 inside is the feeding side plate 3 provided at an angle.
The skinning blade A of the skinning rotor 9 falls on the top due to its own weight, and...
- The wood 18 is scraped up by A6, further stopped by the receiving plate 2, and reversed, and the wood 18 rotates in the direction of the arrow opposite to the peeling rotary body 9 within the storage body 1. In this way, the wood 18 is a storage body! While rolling inside, the skin is peeled off by the skinning blades A,...A, and the skin is taken out one after another. moving to the side.

In the present invention, the debarking blade A6 is installed in a spiral shape with 3 sets of 6 parts arranged in parallel, so that the wood 18
The impact applied by 11C is alleviated by the three peelers A, , A, which prevents damage to the woody parts and allows clean and efficient peeling. In addition, in the case of a conventional structure with a single six-part structure without parallel stripping blades, each stripping blade hits locally and the impact force is too strong, cutting into the wood and causing the wood to be stripped. This has the disadvantage that the surface of the wood 18 is full of scratches and the peeling efficiency is also poor.

In addition, the skinning blades A and the skinning blades Ar (skinning blades A2 and A5, A3,
. . ) is set to 80 to 200 crIL. For this reason, the wood 18 is 160 to 400 c.
As shown in Fig. 4, even a long piece of material with a curve of about m
A peeling blade A1 is inserted into the curved recess 111& of the wood lH...
However, the skin of the recess 18& can be efficiently removed. In this case, if 1 interval P is less than 80c1a, the long wood 18 will be supported by two or more points K on the skinning blade, so the skinning blade A will not hit the recess 1/I & Sometimes it cannot be removed. Also, if the distance P is 200cm or more,
Since the wood 18 to be input is usually about 400 cIIt, it is not practical.

Moreover, the average circumferential speed at the center of the peeling blade A of the peeling rotary body 9 is 80 to 120 m/min, preferably about 100 m/min, for most efficient peeling. In this case, 80m
If the speed is less than 120 m/min, the peeling efficiency will be poor, and if the speed exceeds 120 m/min, a large motor 15 will be required, and the bark will be peeled too much, damaging even the wood, so the above range is desirable for operation.

Also, the peeling blade...A, is the pipe shaft 10 (1)
Since it protrudes spirally on the outer periphery, it is smoothly transferred from the input section 5 of the storage body 1 to the take-up section 7 side by the action of the feed screw.

The wood 18 accumulated on the extraction part z side is peeled off while continuing to rotate, and its condition is confirmed from the top of the storage body l.
When the peeling is completed, the shutter 6 is lowered by a drive mechanism (not shown), the take-out section 2 is opened, and the wood I8 is dropped from the chute 19 and sent to the conveyor 20. In this way, by sequentially feeding the wood 18 from the feeding section 5, the bark is automatically peeled off.

Also, the skin peeled off by this peeling action is removed by the peeling rotary body 90.
As it rotates, it is dropped onto a conveyor 17 provided below, and is automatically taken out of the apparatus.

In the above embodiment, the upper part of the storage body l is opened over the entire length, but a lid may be provided in the middle part excluding the input part 5 and the take-out part 7. In this case, the lid may be flat or round. Furthermore, since the storage body l of the present invention only needs to have a substantially V-shaped cross section on its lower side, only the lower side of the cylindrical drum-shaped storage body l may be formed to have a substantially V-shaped cross section. In this case, it is preferable that the input section 5 is open at the top.

Alternatively, the take-out section 7 may not be provided with the vertically movable shutter 6, but a part of the receiving side plate 2 may be formed to be openable and closable, and the stripped wood 18 may be taken out from the side.

Furthermore, in this case, both the receiving side plate 2 and the sending side plate 3 may be formed to be openable and closable, and the wood 18 may be inputted from one side and the stripped wood 18 may be taken out from the other side.

FIGS. 6 and 7 show another embodiment of the present invention, in which three skinning blades A/3 are provided on the outer circumference of the pipe shaft IO,
A1. A/... are arranged side by side, and a first skinning blade An having a triple 12-part structure protrudes spirally at 30 degree intervals, and a first skinning blade row An and 180 extending from the end of the rotating body 9. A double helical structure is obtained by protruding a second row of peeling blades Bn having a three-part 12-bar structure with different degrees of phase.

This double helix structure can further improve the peeling efficiency. In this case, it is also preferable that the distance P between the peeling bodies Bq and B7 and A' of the same phase adjacent to each other along the longitudinal direction of the rotating body 9 is set to 80 to 200 crrL.

Further, as described above, the present invention is not limited to the double or double helical peeling blade An or BnK, but may be triple or more.

FIG. 8 shows another different embodiment, in which the rotating body 90 on the input section 5 side is arranged in three rows 1'2. The peeling blades A and B are provided in a double spiral shape with divided peeling blade rows An and Bn, and the peeling blade A is provided in a single spiral shape with 3 series and 6 sections on the extraction side, and the number of sheets per unit length is input. It is formed so that the portion 5 side is larger.

This peeling rotating body 9 is made of wood! The skin is strongly peeled off on the side of the input part 5 of the H, and the skin is peeled off gently on the side of the take-out part 7, which has a small number of blades, without damaging the wood part, and the skin waste is smoothly discharged.

Further, in the above embodiment, a structure is shown in which one peeling rotor 9 is provided, but a plurality of peeling rotors 9 may be connected in a substantially straight line via bearings 12, and in this case, the motors 15 are preferably attached on both sides. In addition, when multiple pieces are connected, a peeling rotary body 9 with a large number of blades as shown in FIG. 6 is arranged on the inputting part 5 side, and a peeling rotary body 9 with a small number of blades as shown in FIG. 4 is arranged on the take-out part Z side. You may do so.

In addition, in the above embodiment, a case is shown in which three stripping blades are arranged in parallel, but any number of two or more may be sufficient, and the number of divisions is not limited to 6 divisions or 12 divisions, but can be set arbitrarily. be able to.

Further, the shape of the peeling blade is not limited to a step-like shape, and an optimal shape may be selected depending on the material of the wood and the like.

〔Effect of the invention〕

As explained above, according to the continuous wood peeling machine according to the present invention, by arranging a plurality of peeling blades in a series and protruding spirally from the outer periphery of the rotating body, the continuous wood peeling machine can prevent damage to the woody parts. , the peeling efficiency can be greatly improved, and in particular, even in the case of a long material having a curved recessed part, it has a remarkable effect such that the skin can be peeled uniformly all over.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a continuous 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 a front view of a peeling rotating body. 5 is a side view of FIG. 4, FIG. 6 is a front view of a peeling rotating body according to another embodiment of the present invention, FIG. 7 is a side view of FIG. 6, and FIG. 8 is a different embodiment of the present invention. It is a front view of a peeling rotary body.

Claims (4)

[Claims] (1) A storage body whose lower part is formed into a roughly V-shaped cross section by a receiving side plate and an inclined sending side plate, and a continuous opening formed along the longitudinal direction at the lower end, and a pipe shaft with a large number of peeling blades. and a peeling rotary body protruding from the outer periphery of the storage body and having its upper part inserted so as to close the lower end opening of the storage body. In a continuous wood peeling machine that peels wood by scraping up the wood by rotating the body and rolling it inside a storage body, a plurality of the above-mentioned peeling blades are arranged in a series and protrude in a spiral shape on the outer periphery of the rotating body. A continuous wood peeling machine that is characterized by the following: (2) A patent claim characterized in that a plurality of peeling blades are arranged in parallel and protrude spirally from the outer periphery of the rotating body, and are formed in a plurality of spiral shapes with the phase shifted from the end of the rotating body. Range 1
Continuous wood peeling machine as described in section. (3) The continuous wood peeling machine according to claim 1 or 2, characterized in that the spacing between adjacent peeling bodies of the same phase along the longitudinal direction of the rotating body is 80 to 200 cm. (4) The number of peeling blades per unit length of the peeling blades spirally protruding from the outer periphery of the rotating body is larger on the wood input side than on the removal side. Section 1,
The continuous wood peeling machine according to item 2 or 3.