JP2003320504A - Apparatus for manufacturing sawdust - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing sawdust capable of classifying the sawdust according to a size. <P>SOLUTION: The apparatus for manufacturing sawdust is provided by arranging a sieving machine for sieving the sawdust via a conveying duct for conveying the sawdust from a pulverizer equipped with a charge part for charging raw materials of wood, scrap wood, branches and leaves of a tree or the like; a pulverizing room for pulverizing the cast raw material into the sawdust with a rotary disc to which a cutter rotatively driven with a motor is fitted; and an exhausting part having an exhaust opening for exhausting the generated sawdust. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sawdust producing apparatus for producing sawdust from timber, waste wood, branches and leaves of trees.

[0002]

2. Description of the Related Art Conventionally, as an example of a sawdust production apparatus for producing sawdust from raw materials such as timber, waste wood, and branches and leaves of trees, these raw materials are input from an input part, and the input raw materials are crushed into sawdust by a chipper. There was a chamber and a sawdust manufacturing device configured to discharge the generated sawdust directly to the outside through a discharge port.

[0003]

However, the above-mentioned conventional sawdust manufacturing apparatus only crushes the raw material into various sizes in the crushing chamber and discharges it, and the size of the crushed sawdust is Various kinds of sawdust of various sizes were being mixed and discharged.

In the past, the field of use of sawdust was limited and the utility value was low, so a sawdust production apparatus without such separation could be sufficiently used.

[0005] However, at present, the range of applications thereof is expanded to mushroom media, substitutes for litter for pig farming, compost, mats for breeding beetles and stag beetles, fuel, feed, etc. It becomes necessary to select the size, and in response to such diversified demand for sawdust, improvement in the quality of sawdust has been demanded.

Therefore, the present invention can sort the crushed sawdust according to the size so as to provide the sawdust with the size suitable for each purpose in response to the change in demand in the background of the times. It is an object of the present invention to provide a sawdust manufacturing device that can be used.

[0007]

Therefore, in order to solve the above problems, in the present invention according to claim 1, an input section for inputting raw materials such as timber, waste wood, branches and leaves of trees, and the input raw materials are provided. A crusher consisting of a crushing chamber that crushes sawdust with a rotating disk consisting of a cutter, and a discharge unit that discharges the generated sawdust, and a sieving machine that separates the sawdust into several sizes is connected via a transport duct. The present invention is intended to provide a sawdust manufacturing device characterized by the above.

Further, in the present invention according to claim 2, the sieving machine comprises a cylindrical rotatable primary processing cylinder made of coarse mesh and a cylindrical rotatable secondary processing cylinder made of fine mesh. The primary processing cylinder is housed inside the secondary processing cylinder to form a double cylinder, and the lower end of the primary processing cylinder is lower than the lower end of the secondary processing cylinder. It is intended to provide a sawdust manufacturing device characterized in that the sawdust manufacturing device is in a state of protruding outward.

According to the third aspect of the present invention, there is provided a sawdust manufacturing apparatus characterized in that the primary processing cylinder and the secondary processing cylinder rotate while vibrating.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Recently, the quality of shavings has been diversified and expanded with mushroom media for which sawdust is used, substitutes for litter for pig farming, compost, mats for breeding beetles and stag beetles, fuel, feed, etc. There has been a demand for improvement of the.

Therefore, the sawdust manufacturing apparatus according to the present invention is
In order to respond to this change in demand, sawdust of a size suitable for each purpose of use is provided, and the crushed sawdust can be separated into several types according to size.

That is, a charging unit for charging raw materials such as timber, waste wood, and branches and leaves of trees, and a crushing chamber for crushing sawdust into sawdust by a rotating disk equipped with a cutter for rotating the charged raw materials by a prime mover are created. A sawdust manufacturing apparatus characterized in that a sieving machine capable of separating sawdust into several types is connected to a crusher equipped with a discharge portion provided with a discharge port for discharging sawdust through a transfer duct. It was done.

The crushing chamber is provided with a rotary disk provided with a cutter in a substantially radial direction for crushing the raw material. The charged raw material enters at a substantially acute angle with respect to the disk surface of the rotary disk. Due to the force applied by the cutting of the cutter and the weight of the raw material, the raw material is automatically caught and continuously cut, and is crushed into sawdust in an extremely short time and discharged to the outside from the discharge port.

Further, the discharge port is opened in a fixed tangential direction with respect to the rotation locus of the rotating disk, that is, in a direction of about 90 degrees with respect to the loading portion, and thus the disk is vigorously discharged from the discharge port by the centrifugal force. The sawdust is conveyed to the lower sieving machine through the conveying duct, sieved into several sizes, and sorted according to size.

The structure can be simplified by the construction of a series of devices from crushing to transportation and separation.
The entire device can be made compact, and the device and the separated sawdust can be handled easily. Therefore, it is possible to perform highly efficient sawdust production work and provide the produced sawdust at low cost. Become.

The separation of the sawdust produced in this way is greatly
The following configuration is provided as an embodiment for achieving three sizes of medium and small.

That is, in the above-mentioned embodiment, the sieving machine comprises a cylindrical rotatable primary processing cylinder made of coarse mesh and a cylindrical rotatable secondary processing cylinder made of fine mesh. The primary processing cylinder is housed inside the secondary processing cylinder to form a double cylinder, and the lower end of the primary processing cylinder is lower than the lower end of the secondary processing cylinder. The primary processing cylinder and the secondary processing cylinder are integrally connected to each other at the starting end opening, and the front and rear flanges are formed at the front and rear opening ends of the secondary processing cylinder. , The front flange left and right lower two places, the rear flange left and right lower two places, the rotary roller interlockingly coupled with the engine and the auxiliary roller having a circular cross-sectional shape for assisting the rotation are brought into contact with each other, and the primary processing cylinder and the secondary processing cylinder The next processing cylinder can rotate together It is sea urchin configuration.

At this time, if a vibrating roller having a polygonal peripheral surface is used instead of the auxiliary roller, it is possible to vibrate the primary processing cylinder and the secondary processing cylinder to improve the sorting effect.

The small-diameter primary processing cylinder is housed inside the large-diameter secondary processing cylinder to form a double structure, and a double cylindrical space is formed between the primary processing cylinder and the secondary processing cylinder. Then, this space,
It is used as a storage space for the sawdust scraped off from the primary processing cylinder.

With such a construction, the sawdust carried in by the carry-in duct is first subjected to rotation and vibration and sifted by the primary treatment cylinder, so that the sawdust larger than the sieve opening of the primary treatment cylinder passes through the inside of the primary treatment cylinder. Proceeds to the lower side, and is discharged from the discharge opening of the primary processing cylinder.

At this time, the sawdust smaller than the sieve opening of the primary treatment cylinder falls into the separation space, and is further sieved by the secondary treatment cylinder, and the sawdust larger than the sieve opening of the secondary treatment cylinder is The secondary processing cylinder advances to the lower side and is discharged from the discharge opening of the secondary processing cylinder, that is, between the processing cylinders.

At this time, sawdust smaller than the sieve opening of the secondary processing cylinder is sieved to the lower part of the secondary processing cylinder.

Therefore, in the space below the secondary processing cylinder, sawdust smaller than the sieve mesh of the secondary processing cylinder is sieved off.

In the space below the end of the secondary processing cylinder to the front of the end of the primary processing cylinder, sawdust that is larger than the mesh of the secondary processing cylinder and smaller than that of the primary processing cylinder is sieved. Be dropped.

In the space below the terminal end of the primary processing cylinder, sawdust larger than the sieve openings of the primary processing cylinder is sieved off.

In this way, sawdust is divided into large, medium and small pieces.
It can be sorted into different sizes.

Therefore, the sawdust manufacturing apparatus according to the present invention is
Although it is highly functional, it can be made compact as a whole, and it can be manufactured into a low-cost device with a simple structure and few failures.

The crushed sawdust is divided into large, medium and small pieces.
Since it can be discharged after sorting according to the size of each type, it can be provided to the market as sawdust in a state suitable for each purpose in response to the recent expansion and diversification of the utilization range of sawdust.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sawdust manufacturing apparatus according to the present invention will be described below with reference to the drawings.

1 to 8 show a sawdust manufacturing apparatus A according to the present invention.

As shown in FIG. 1, the sawdust manufacturing apparatus A according to the present embodiment conveys the generated sawdust and a crusher 18 for throwing in raw materials such as timber, waste wood, and branches and leaves of trees to crush the sawdust. And a rotary type sieving machine 70 for separating sawdust by size.

The crusher 18 is a charging section for charging raw materials such as timber, waste wood, and tree branches into the casing C, which is an outer frame.
1, an crushing chamber 2 for crushing the raw material, and an outlet 31 for discharging the generated sawdust, and an engine 5 as a drive source of a rotating disk 4 rotatably arranged in the crushing chamber 2.
And a reduction gear (not shown) linked to the engine 5
It is configured to be driven by and. The engine
5 can be replaced by a motor.

The rotary disk 4 is integrally attached to a rotary support shaft 41 which is horizontally installed in the crushing chamber 2, and the rotary support shaft 41 is mounted on the rotary support shaft 41.
The engine 5 and the engine 5 are interlockingly connected by a belt 7 via the speed reducer, and can be rotationally driven in a direction indicated by an arrow f in FIG. 1, and a raw material is placed on one disk surface facing the input portion 1. Cutters 6 for cutting are fixed at fixed intervals so that they can be replaced in the circumferential direction.

The charging section 1 is mounted so that the charging direction into the crushing chamber 2 is three-dimensionally inclined with respect to the rotation direction of the rotary disk 4, that is, the cutting direction of the raw material by the cutter 6.

That is, as shown in FIG. 7, the guide cylinder 11 is obliquely rearward and slightly upward to the charging port 10 opened in the casing C so as to communicate with the crushing chamber 2, and the mounting angle is an acute angle with respect to the rotation locus. The chute member 12 is coaxially connected to the guide cylinder 11 so as to feed the raw material to the rotary disk 4 from diagonally forward and upward. The chute member 12 is configured so as to gradually expand upward, so that the raw material can be easily introduced.

On the other hand, the transport duct 3 is used for the sawdust manufacturing apparatus A.
It is provided at the rear part of the crushing chamber 2, and is disposed on the side substantially opposite to the charging part 1 while holding an angle of about 90 degrees, and
The rotary disk 4 is formed so as to project obliquely upward so as to be substantially tangential to the rotary disk 4, and is continuously connected to a discharge port 31 provided at a rear upper side position of the casing C so as to extend obliquely upward to rotate the next stage. The sawdust is configured to be smoothly conveyed to the type sieving machine 70.

Here, FIG. 4 to FIG.
This will be described in detail with reference to FIG.

The rotary disk 4 is formed in a disk shape and is fixed to one end of a boss 42 in which the rotary support shaft 41 is fitted. On the other end side of the boss 42, a sub disk 43 having the same shape as the rotating disk 4 is fixed, and both disks 4, 43
A plurality of plate-shaped blades 44 also serving as spacers are radially mounted between them.

Also, the outer side surface (one side surface) of the rotating disk 4
Is a cutter mounting surface 40 to which the cutter 6 is attached. On the cutter mounting surface 40, three stepped portions 45 for mounting the cutter 6 are formed radially at regular intervals.

As shown in FIG. 4, the step portion 45 is provided with a step from the cutter mounting surface 40 of the rotary disc 4 to form a back wall 46, and the back wall 46 substantially rotates the rotary disc 4. In the direction, that is, toward the sawdust discharge hole 48 described later, the upward slope is formed. That is, it is formed so that it has an upward slope from the rear side to the front side with respect to the substantially rotating direction of the rotary disk 4, and is gradually shallower from the base end to the front end of the inner wall 46.

Then, the cutter 6 is brought into close contact with this inclined surface, and the disk mounting bolt a is screwed into the cutter 6 through the bolt hole 47 provided at the substantially central position of the step portion 45, and the rotary disk 4 Stick the cutter 6 on.

Reference numeral 6 or 6'denotes a cutter. FIG. 9 (a) is a front view of the cutter 6 having a plurality of rectangular cutting edges, and FIG. 9 (b) is a front view of a cutter 6'having a plurality of cutting edges. There are two types, and which one is used is determined by the raw material and the size of the sawdust produced.

On the side of the cutter 6, a sawdust discharging hole 48 is formed which is a long hole in the radial direction of the rotary disc 4 (see FIGS. 4 and 6), and the raw material is cut by the rotation of the rotary disc 4. When cut by 6, the cutting raw material enters the space between the rotary disk 4 and the sub disk 43 from the sawdust discharge hole 48, and is scattered by the blade body 44 from the discharge port 31 to the transport duct 3 to rotate in the next step. The sieving machine 70 is vigorously loaded.

Here, the crusher 18 is shown in FIGS.
Will be described in detail with reference to.

The input port 10 is formed in the wall surface of the crushing chamber 2 facing the cutter mounting surface 40 of the rotary disc 4, and is below the rotary support shaft 41 of the rotary disc 4, and the cutting direction of the cutter 6 is oblique. It opens at a position that points downwards.

Into the inlet 10, diagonally rearward and slightly upward,
Moreover, the guide tube 11 is mounted so that the mounting angle is acute.
Are attached to the rotating disk 4 at a constant acute angle α in a plan view (see FIG. 8), and are inclined by a constant acute angle β in the horizontal direction in a side view (FIG. 7).
reference). The acute angles α and β are preferably set in the range of 35 to 55 degrees.

The guide cylinder 11 has a rectangular shape in cross section, and is provided with a receiving blade 13 on the peripheral wall except for the casing C side, as shown in FIG.

Then, the distance between the tip 13a of the receiving blade 13 and the cutter 6 of the rotary disk 4 can be adjusted,
The amount of protrusion d of the receiving blade 13 from the inner wall surface 20 of the crushing chamber 2 can be adjusted.

That is, as shown in FIG. 8, a bracket 14 having a female screw hole is projected from the receiving blade 13, and the bracket 14 is inserted into a long hole 15 provided in the guide tube 11 and has the same length. The bolt b can be screwed between the guide tube 11 and the bracket 16 which is adjacent to the hole 15 and projects from the guide tube 11.

With this construction, the receiving blade 13 can be slid back and forth by turning the bolt b without directly touching the receiving blade 13 with a hand, which is safe and easy.

In the figure, 17 is a fixing bolt, and when the receiving blade 13 is positioned, it is fixed to the guide cylinder 11 with this fixing bolt 17.

This embodiment is constructed as described above,
When the raw material is charged from the chute member 12, the raw material is a guide tube.
Guided by 11, it advances three-dimensionally from the inlet 10 to the crushing chamber 2 in an oblique direction.

In the crushing chamber 2, the raw material is cut by the rotating cutter 6, but at this time, the raw material that advances with respect to the rotating disk 4, that is, at an acute angle α with respect to the cutting direction of the cutter 6, is as if it were. It is cut in such a way that it is pulled in, it automatically advances into the crushing chamber 2 and is continuously cut, and it is cut diagonally, so the cutter 6 and the raw material also hit softly and make noise. Also becomes smaller.

Further, since the raw material is fed obliquely downward in the guide cylinder 11 with an angle of an acute angle β with respect to the horizontal direction, the raw material is pressed downward by the direction of force and its own weight at the time of cutting. As a result, the raw material does not move around during cutting and does not cause any trouble, and smooth crushing work can be performed.

The sawdust that has been crushed in this way is transferred to the transport duct.
It is conveyed by 3 and passed through a rotary sieving machine 70 in the next stage and sorted according to size.

Here, the rotary sieving machine 70, which is a part of the essential part of the present invention, will be described in detail.

As shown in FIGS. 1 and 3, the rotary sieving machine 70 includes a sorting section 71 for sorting sawdust on a sieve, a pedestal 72 for supporting the sorting section 71, and a sorting section 71. It is composed of a driving unit 73 that makes a rotational movement.

As shown in FIG. 2, the separating section 71 includes a cylindrical rotatable primary processing cylinder 75 made of coarse mesh and a cylindrical rotatable secondary processing cylinder made of fine mesh.
The primary processing cylinder 75 is a secondary processing cylinder 76.
The secondary processing cylinder 75 has a lower side end projecting outward than the lower side end of the secondary processing cylinder 76, and has a cylindrical coarse mesh. On the outside of the primary processing cylinder 75 consisting of, the starting end opening of the secondary processing cylinder 76 composed of a coaxial cylindrical fine mesh is integrally connected, and the primary processing cylinder 75 and the secondary processing cylinder 76 are doubled. It has a cylindrical structure and rotates integrally.

That is, an annular collar body having an L-shaped cross section is attached to the front and rear open ends of the secondary processing cylinder 76. The collar body has cylindrical front and rear flanges 77, 78 and outer peripheral front and rear flanges. Tsuba 82,
It consists of 83.

A rotating roller 79 interlocked with the engine 5 is brought into contact with one of the left and right sides of the lower portion of the front flange 77 so that the cylindrical processing cylinders 75 and 76 can be driven to rotate.

On the other side, an auxiliary roller 80 (see FIG. 10A) having a circular sectional shape is abutted to assist the rotation, and the lower side of the rear flange 78 is also attached to both left and right sides. Similarly, the auxiliary roller 80 is brought into contact with the rotary roller 79 and the three auxiliary rollers 80, 80, 80 to rotate the secondary processing cylinder 76 for separating sawdust.

The auxiliary roller 80 is fixed to a pedestal 72 described later via a mounting member 88 on a rotary support shaft 87.

At this time, if a vibrating roller 81 having a polygonal peripheral surface is used instead of the auxiliary roller 80, the vibrating roller 81
(See FIG. 10 (b)) The secondary processing cylinder 76 is vibrated along with the rotation to vibrate the sorting unit 71 including the primary processing drum 75 and the secondary processing drum 76, so that the sorting unit 71 is rotated. Due to the synergistic effect, the sorting efficiency can be improved.

Secondary processing cylinder of rotating roller 79 and auxiliary roller 80
The side surface on the 76 side is flat, and the front and rear brims 82,83
To support the secondary processing cylinder 76.

Further, the separating section 71 including the primary processing cylinder 75 and the secondary processing cylinder 76 is arranged so as to incline downward toward the lower side.

With this structure, the sawdust that is successively conveyed is guided by the inclinations of the primary processing cylinder 75 and the secondary processing cylinder 76, and is more likely to go deeper, so that the sorting efficiency can be improved.

The small diameter primary processing cylinder 75 is a large diameter secondary processing cylinder.
It is housed inside 76 and has a double structure.
A double cylindrical space is formed between the secondary processing cylinder 76 and the secondary processing cylinder 76. In the space, among the sawdust conveyed to the sorting unit 71, sawdust smaller than the sieve mesh of the primary processing cylinder 75 is primary. Processing cylinder
It is used as a separation space P for falling storage that is sieved off from 75.

Further, the primary processing cylinder 75 is so arranged as to project outward from the lower half side end of the secondary processing cylinder 76.
It is configured to be longer than that.

Therefore, by sieving with the primary treatment cylinder 75, it separates into sawdust larger than the sieve mesh of the primary treatment cylinder 75 and sawdust smaller than the sieve mesh of the primary treatment cylinder 75, Only sawdust smaller than the mesh size can be applied to the secondary processing cylinder 76.

Further, by sieving with the secondary treatment cylinder 76, it is possible to separate into sawdust larger than the sieve mesh of the secondary treatment cylinder 76 and sawdust smaller than the sieve mesh of the secondary treatment cylinder 76. it can.

That is, since the primary processing cylinder 75 is made longer than the secondary processing cylinder 76 by projecting outward from the lower half side end of the secondary processing cylinder 76, the screen of the primary processing cylinder 75 is increased. Sawdust larger than the eyes advances in the primary processing cylinder 75 to the lower side,
Sawdust discharged from the discharge opening of the primary processing cylinder 75 and smaller than the sieve opening of the primary processing cylinder 75 and larger than the sieve opening of the secondary processing cylinder 76 advances to the lower side in the secondary processing cylinder 76, and the primary processing cylinder
Sawdust discharged from between the 75 and the secondary processing cylinder 76 and smaller than the sieve openings of the secondary processing cylinder 76 is sieved to the lower part of the secondary processing cylinder 76. As described above, in the present embodiment, sawdust larger than the sieve opening of the primary processing cylinder 75, smaller than the sieve opening of the primary processing cylinder 75, and larger than the swing surface of the secondary processing cylinder 76, secondary sawdust. It can be separated into three kinds of sizes, large, medium and small with sawdust smaller than the sieve opening of the processing cylinder 76.

A hood 84 that covers the entire sorting portion 71 is detachably arranged so that it can be used or not used depending on the weather and other usage conditions.

Since the pedestal 72 has a height sufficient for the sawdust sieved by the sorting unit 71 to drop, the pedestal 72 lifts and supports the sorting unit 71 installation surface from the ground.

The table surface for supporting the sorting portion 71 is formed so that the upper side is higher than the lower side, and the primary processing cylinder 75
The secondary processing cylinder 76 and the secondary processing cylinder 76 are arranged so as to incline downward toward the lower side.

The drive unit 73 is a rotation support shaft of the rotation roller 79.
The rotatable transmission roller 86 is arranged on the 85
The engine 5 and the engine 5 can be rotationally driven by interlockingly connecting them with a belt via the speed reducer.

As described above, in the sawdust manufacturing apparatus A according to the present embodiment, the following four routes are formed as routes for finally discharging the sorted sawdust. It will be.

The route (a) is a route for discharging sawdust thrown into the primary processing cylinder 75 from the discharge opening while advancing inside the primary processing cylinder 75 to the lower side.

Therefore, the route is such that sawdust larger than the sieve opening of the primary processing cylinder 75 passes.

In the route (b), the sawdust thrown into the primary processing cylinder 75 is advanced in the primary processing cylinder 75 to a position lower than the discharge opening of the secondary processing cylinder 76, and the primary processing cylinder 75 is further processed. This route is screened by the primary processing cylinder 75 while advancing to the discharge opening.

Therefore, the route becomes a route through which sawdust smaller than the sieve opening of the primary processing cylinder 75 passes.

In the route of (c), the sawdust thrown into the primary processing cylinder 75 is sieved to the separation space P by the primary processing cylinder 75, and further, the inside of the secondary processing cylinder 76 is advanced toward the lower side from the discharge opening. It is a route to discharge.

Therefore, a route through which sawdust smaller than the sieve opening of the primary processing cylinder 75 and larger than the sieve opening of the secondary processing cylinder 76 passes.

The route (2) is a route in which the sawdust thrown into the primary processing cylinder 75 is screened by the primary processing cylinder 75 into the separation space P and further by the secondary processing cylinder 76.

Therefore, the route becomes a route through which sawdust smaller than the sieve opening of the secondary processing cylinder 76 passes.

With such a configuration, the sawdust that is successively carried in by the transport duct 3 is passed through the coarse mesh of the primary processing cylinder 75 while being sieved by the rotary motion and vibration of the sorting section 71, Even small sawdust is sifted into the sorting space P, and sawdust larger than the sieve mesh goes further inside the primary processing cylinder 75 and is discharged from the discharge opening of the same primary processing cylinder 75.

On the other hand, the sawdust scraped off in the separation space P is further swung by the fine mesh of the secondary processing cylinder 76, and the sawdust smaller than the sieve mesh falls under the sieve mesh and falls below the sieve mesh. The large sawdust goes further inside the secondary processing cylinder 76 and is discharged from the discharge opening of the secondary processing cylinder 76.

Therefore, in the space S below the secondary processing cylinder 76, sawdust smaller than the sieve mesh of the secondary processing cylinder 76 is sieved off, and from the end portion of the secondary processing cylinder 76 to the end of the primary processing cylinder 75. In the space M in the lower part up to the front side, the secondary processing cylinder
Sawdust larger than the mesh size of 76 and smaller than the mesh size of the primary treatment cylinder 75 is sieved off, and in the space L at the lower end of the primary treatment cylinder 75, larger sawdust than the mesh size of the primary treatment cylinder 75 is sieved off. Be done.

That is, by installing a container for collecting small sawdust in the space S, a container for collecting medium size sawdust in the space M, and a container for collecting large sawdust in the space L, the sorting unit 71 This makes it possible to easily collect sawdust that is separated according to the size of large, medium and small.

As described above, the sawdust manufacturing apparatus A according to the present invention has a high function, but can be made compact as a whole, and has a simple structure with few failures and can be manufactured at low cost.

The crushed sawdust is divided into large, medium and small pieces.
It becomes possible to discharge after sorting according to the size of the type,
In response to the recent expansion and diversification of the usage range of sawdust, there is an effect that the sawdust of a size suitable for each purpose of use can be provided to the market.

[0091]

The invention is carried out in the above-mentioned form, and has the following effects.

(1) In the present invention according to claim 1, sawdust is provided by a rotating disk equipped with a charging section for charging raw materials such as timber, waste wood, and branches and leaves of trees, and a cutter for rotating the charged raw materials by a prime mover. The sawdust is sieved through a transport duct to a crusher having a crushing chamber for crushing into pieces and a discharge part provided with a discharge port for discharging the generated sawdust 2
The sawdust manufacturing device is characterized by a series of sieving machines for sorting, which makes it easy to handle, has a simple structure, and has a compact structure. Moreover, it has high work efficiency and is crushed. It is possible to provide at low cost a sawdust manufacturing apparatus capable of separating sawdust according to size and then discharging it.

(2) In the present invention according to claim 2, the sieving machine is capable of freely rotating a cylindrical primary processing cylinder made of a coarse mesh and a cylindrical secondary processing cylinder made of a fine mesh. The primary processing cylinder is housed inside the secondary processing cylinder to form a double cylinder, and
The lower side end of the primary processing cylinder is a sawdust manufacturing device characterized in that it is in a state of protruding outward than the lower side end of the secondary processing body, so that the crushed sawdust is large,
It is now possible to separate the waste into three sizes, medium and small, and then discharge it. In response to the recent expansion and diversification of the scope of use of sawdust, it is possible to provide the market with sawdust of a size suitable for each purpose of use. .

(3) In the present invention according to claim 3, since the sawdust manufacturing apparatus is characterized in that the primary processing cylinder and the secondary processing cylinder rotate in a freely swinging manner, the rotary motion of the rotary sieving machine is described. Work efficiency can be improved due to the synergistic effect with.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of a sawdust manufacturing apparatus according to the present invention.

FIG. 2 is an explanatory diagram of a side view of a sorting unit.

FIG. 3 is an explanatory view seen from the discharge opening side of the rotary sieving machine.

FIG. 4 is an explanatory view of a rotating disk as viewed from the side.

5 is a cross-sectional view taken along line I-I of FIG.

FIG. 6 is an explanatory view showing a state in which a cutter is attached to the rotating disk.

FIG. 7 is an explanatory diagram of a crushing chamber.

8 is a cross-sectional view taken along the line II-II in FIG.

FIG. 9 is a front view of the shape of a blade of a cutter.

FIG. 10 is an explanatory diagram for mounting a receiving roller.

[Explanation of symbols]

A sawdust production equipment P separation space 1 Input section 2 crushing room 3 transport ducts 4 rotating discs 5 engine 6 cutter 70 rotary sieving machine 71 Sorting Department 72 pedestal 73 Drive 75 Primary processing cylinder 76 Secondary processing cylinder 79 rotating roller 80 Auxiliary roller 81 Vibration roller

Claims (3)

[Claims] 1. A charging section for charging raw materials such as timber, waste wood, and branches and leaves of trees, a crushing chamber for crushing the charged raw materials into sawdust by means of a rotating disk comprising a cutter, and a discharging section for discharging generated sawdust. A sawdust manufacturing apparatus, wherein a sieving machine for separating sawdust into several sizes is connected to a crusher consisting of the above through a transport duct. 2. The sieving machine is configured by tilting a cylindrical rotatable primary processing cylinder made of coarse mesh and a cylindrical rotatable secondary processing cylinder made of fine mesh, The primary processing cylinder was housed inside the secondary processing cylinder to form a double cylinder, and the lower end of the primary processing cylinder was projected outward than the lower end of the secondary processing cylinder. The sawdust manufacturing device according to claim 1. 3. The sawdust manufacturing apparatus according to claim 2, wherein the primary processing cylinder and the secondary processing cylinder rotate while vibrating.