JPH0880511A - Manufacturing device for sawdust - Google Patents

Abstract

PURPOSE: To obtain a manufacturing device for sawdust by cutting efficiently end faces of various kind of lumber. CONSTITUTION: In a manufacturing device of sawdust constituted of a pressure- feeding device of a sawdust material and cutting device of the sawdust material, a fitting groove blade cutting tool in which a groove cutting blade 4 is arranged slantwise and a fitting flat blade cutting tool in which a flat cutting blade 5 is arranged slantwise are arranged spirally and firmly on the surface of a cylinder of a cutting rotor 3 and both of them are arranged alternately firmly along a rotary direction at fixed intervals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ogre powder manufacturing machine for efficiently cutting end faces of various kinds of wood to produce ogre powder.

[0002]

2. Description of the Related Art Originally, ogre powder was naturally produced as a by-product during sawing, and its use was limited in the past, so it was expensive to process. However, nowadays, demand for pigs, etc. for straw replacement, cultivation of shiitake, etc., fuel, and feed are diversified, and in order to meet the demand, development and supply of a dedicated oga flour making machine has been achieved.

[0003] The main part of an ogre flour maker is generally composed of a device for placing wood on a belt and feeding it, and a device for cutting the fed wood into ogre powder. The current situation is that each company is competing to improve the equipment for producing wood powder by cutting wood, which will be described later. The wood cutting mechanism is roughly divided into
A large number of disk saw-shaped rotary blades mounted coaxially with a small gap are rotated at high speed to cut the end face of the supplied wood, and a rotor or disk is equipped with a cutting blade to rotate at high speed. There are two types of cutting the end surface of the supplied wood.

[0004]

Among these, the method using a disk saw-shaped rotary blade causes less wear because it uses a cemented carbide steel for its cutting edge, and one polishing takes 1 to 2 days. Can be cut and has excellent production capacity. However, on the other hand, it is expensive in price and easily damaged by nails, stones, etc. that often adhere to and mix with wood, and in such a case the trouble and cost of removing and replacing the disc saw blade are troublesome. It is the seed. On the other hand, in the method in which a cutting blade is attached to the rotor, etc., the unit price of the cutting blade itself is relatively low and replacement in case of breakage is easy, but the blade edge wears quickly and needs to be polished frequently. Moreover, the production amount of the ogre flour was also inferior. From these things, in consideration of the damage and wear of the cutting edge that cannot be avoided, it was expected that a rotor system considering the efficiency of blade replacement and polishing would be developed with high production efficiency. .

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings.
A small-diameter tree (hereinafter referred to as "oga powder material W") is fed by a feeding conveyor 1 and an ogre powder material feeding device A that feeds it while pressurizing it from above by a pressing roll 2 that can swing up and down, and cutting that rotates at high speed. The rotor 3 is composed of an ogre powder cutting device B in which flat blades and cutting blades 4 and 5 (described later) (described later) are detachably arranged and fixed in a spiral shape. Only the objects of a predetermined size or less are pneumatically transported from the ogre powder outlet 7 to a predetermined place through the suction duct 8.

In the construction of the present invention, the ogre powder material feeding device A is not necessarily a prerequisite, but the feeding belt conveyor 1 is inclined from the horizontal by about 10 ° from the rotor shaft 9 position of the cutting rotor 3. It is disposed slightly lower and is brought close to the ogre powder material cutting device B via the fixed receiving blades 10 arranged in parallel at the terminal end thereof. Next, regarding the ogre powder material cutting device B, the mounting groove cutting tool 1 in which the groove cutting blade 4 is obliquely arranged on the cylindrical surface 11 of the cutting rotor 3 as shown in FIG.
2 and the attached flat cutting tool 13 in which the flat cutting blades 5 are similarly obliquely arranged are spirally fixed so that the cutting blades are continuous with each other. In the figure, the mounting groove cutting tool 12
The mounting flat cutting tools 13 and the mounting flat cutting tools 13 are alternately arranged and fixed in a spiral shape, but the same type may be arranged in a spiral shape. On the cylindrical surface 11 of the cutting rotor 3, the mounting groove cutting tool 12 and the mounting flat cutting tool 13 are alternately arranged and fixed at predetermined intervals around the rotating cylinder, that is, at positions divided into 6 or 8. . As a result, the cylindrical surface 10 of the cutting rotor 3 is provided with a row of six or eight cutting blades in a spiral shape. It should be noted that a sorting screen 6 is provided near the cutting rotor 3 at a position where the ogre powder material W is introduced, and a light cover 14 that can be opened and closed is provided on the upper portion of the rotor 3, and the upper portion of the sorting screen 6 is also covered. It is integrated with 14 and is opened and closed at the same time to prevent scattering of ogre powder and the like during the manufacturing process, and to facilitate inspection and repair around the cutting rotor 3.

[0007]

In the use of the present invention, when the ogre powder material W is sequentially placed on the loading belt conveyor 1 and fed under the pressing roll 2, the press roller 2 presses the ogre powder material W swingably. Is sent by pressure toward the ogre powder manufacturing apparatus B. When the end surface of the fed ogre powder material W reaches the cutting rotor 3 via the fixed receiving blade 10, it is repeatedly cut by the groove cutting blades 4 and the flat cutting blades 5 which are alternately arranged and fixed on the cutting rotor 3. As a result, the end surface of the sawdust powder W was cut into grooves at intervals of several millimeters by the groove cutting blade 4 provided with a large number of groove blades, and then left on the end surface by the flat cutting blade 5 at the next moment. Many groove ridges will be cut. Assuming that three sets of the groove cutting blades 4 and the flat cutting blades 5 are arranged and fixed on the circumference of the cutting rotor 3, the cutting rotor 3 is rotated every rotation.
The cutting is performed about 3 times the height of the groove.

The cut ogre powder falls downward while being blown by the impact during cutting, and only the thing that has passed through the mesh of the screening screen 6 passes through the ogre powder outlet 7 through the suction duct 8 to a predetermined storage location. Is transported by air. In this case, the large ogre powder that could not pass through the mesh of the sorting screen 6 is crushed again by a large number of cutting blades while moving with the high speed rotation of the cutting rotor 3 and the vortex of the surrounding air generated by the cutting process. Screen 6
And is sent out from the suction duct 8 as a predetermined ogre powder.

[0009]

EXAMPLES The present invention will be described in more detail with reference to the first example. In the ogre powder material cutting device B, which is the core of the present invention, the greatest point of increasing the cutting efficiency of the ogre powder material W is the cutting blade used for cutting. Research and its placement. As a result of trial and error over a long period of time and trial production experiments, it was found that polishing can be performed efficiently against wear of the cutting blade, replacement in case of damage is easy, and the shape and material are relatively inexpensive. As a result of the pursuit, it was completed (patent application January 25, 1994, title of the invention "cutting tool with polishing guide groove". That is, the cutting blade arranged and fixed on the cutting rotor 3 is shown in the figure. As shown, the groove cutting blade 4 or the flat cutting blade 5 (the flat cutting blade 5 is not shown) is obliquely arranged on the rectangular cutting blade base 15 and the groove cutting blade 4 or the flat cutting blade 5 is arranged. In the form slightly scooped immediately below the position of the blade edge of the blade, it is connected to the polishing guide groove 16 provided at the lower end to form the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13. The cutting blade of this shape is used in the present invention. Unlike the conventional technology, the Complete as a cast cutting edge, are employed to verify adequate its utility.

A mounting hole 17 is provided in the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13, and the cutting rotor 3
After being fitted into the fitting hole 18 and the screw hole 19 provided on the cylindrical surface of the above, it is screwed and fixed. The arrangement of the mounting groove blade cutting tool 12 and the mounting flat cutting tool 13 on the cutting rotor 3 is such that both of them are alternately contacted obliquely laterally in the figure, and the protruding cutting blades are continuously connected in a spiral shape. However, the groove cutting blades 4 or the flat cutting blades 5 of the same kind may be arranged together.
Next, along the direction of rotation, the cutting rotor 3 is arranged such that the circumference of the cylinder is divided into 6 to 8 and the groove cutting blades 4 and the flat cutting blades 5 are arranged alternately in this direction. .

Next, the ogre powder material feeding device B will be described. The belt surface of the feeding conveyor 1 is provided with an inclination of about 10 ° with respect to the normally used horizontal position.
The fixed receiving blade 10 is provided in parallel at the end portion thereof and is brought close to the ogre powder material cutting device B. The belt surface of the feeding conveyor 1 is installed at a position slightly lower than the position of the rotor shaft 9 of the cutting rotor 3, but ideally, the mechanism is such that the inclination angle can be adjusted within a certain range. It is desirable to correspond to the material and size of W.

The other parts of the ogre powder pressure feeding device and the ogre powder cutting device are constituted by the various member devices described above.

In the second embodiment described below, the mounting groove blade cutting tool 12 is replaced with the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 which are arranged and fixed on the cutting rotor 3 instead of the alternate cutting method.
The cutting of the ogre powder material W is performed in the same manner only by using only. That is, the mounting groove blade cutting tool 12 arranged and fixed in a spiral shape at a predetermined interval is provided with a half length of the groove interval so that the grooves and valleys of the groove cutting blade 4 do not match on the line of rotation thereof. Place it sideways and fix it. As a result, in the cutting of the ogre powder material W, the portion left after being cut by the groove cutting blade 4 is scraped off by the cutting of the next groove cutting blade 4.

In the above embodiment, the most preferable method of arranging and fixing the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 in a spiral shape has been described, but the cylindrical surface 11 is arranged along the rotation direction. The arrangement is not necessarily limited to spiral arrangement as long as the arrangement is fixed and fixed at intervals of 6 to 8 divisions or 2 to 4 divisions in a small machine to be developed in the future. Further, the groove cutting blade 4 or the flat cutting blade 5 projectingly provided on the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 is also arranged with respect to the rotation direction of the cylindrical surface 11 in addition to the embodiment in which the groove cutting blade 4 or the flat cutting blade 5 is arranged in an oblique direction. It is also possible to arrange it vertically and project it. In this case, the sharpness of the cutting becomes poor, but the width of the groove cutting blade 4 and the flat cutting blade 5 which are convexly provided on the surface of the cutting blade base 15 can be wide, and the width that can be used by polishing is wide and long-term use. Will endure. Considering these things, a new embodiment can be considered in the case of a special dedicated machine.

[0015]

As can be seen from the above structure, the present invention has the greatest features in the cutting machine B for cutting ogre powder B and the mounting groove blade cutting tool 12 fixedly fitted and fixed to the cylindrical surface of the cutting rotor 3. This is to establish a method for cutting ogre powder material by developing the blade cutting tool 13 itself. That is, for cutting with a great impact such as cutting of Oga powder material W, we break the common sense of the industry and prototypely research and develop a cutting blade by cemented carbide precision casting using a precision mold, cutting with sufficient durability and sharpness I saw the completion of the blade. As a result, the intended cutting shape can be mass-produced in the form of a casting at low cost, and it is, for example, 98 × 85.
It is also a shape as a cutting tool with a size of about mm mm, so even if it is an unavoidable breakage as a cutting blade for producing ogre powder, it can be easily replaced and it is more economical than the conventional type. It was possible to realize that the burden was small.

In addition, when the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 are individually arranged and fixed on the cylindrical surface 11 of the cutting rotor 3, the cutting blades such as the groove cutting blade 4 and the flat cutting blade 5 are spiral. In principle, the cutting of the end surface of the ogre powder material W is sequentially performed by the individual cutting tools because the cutting tools are sequentially connected to each other. Therefore, unlike the conventional model, the cutting energy is not simultaneously dispersed over the entire end surface of the fed ogre powder material W, and the cutting energy is concentrated on the cutting location. In addition, both the groove cutting blade 4 and the flat cutting blade 5 provided in the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 are provided with the cutting rotor 3
Since the rotation energy of the cutting rotor 3 is always concentrated at one point of the cutting blade and is cut by the oblique blade, the sharpness is good.
For these reasons, energy consumption for cutting the ogre powder W is also saved, and noise during cutting work is also reduced.

Next, the mounting groove blade cutting tool 12 and the mounting flat blade cutting tool 13 are alternately arranged on the cylindrical surface 11 of the cutting rotor 3 at a predetermined interval along the rotation direction. In order to cut the end face of the ogre powder material W, first, the groove cutting blade 4 cuts a large number of grooves, and then the remaining groove crests are rotated. Since it is cut by the flat cutting blade 5 coming in, in principle, the same size of ogre powder is always produced. Therefore, the rate of sawdust passing through the sorting screen 6 as it is is high, and it is highly efficient with less clogging.
This means that even in the case of the second embodiment, good quality ogre powder can be cut for almost the same reason.

Further, when manufacturing the ogre powder, polishing of the cutting edge of the cutting tool, which must be performed every 2-3 hours to several hours,
There is an advantage that the cover 14 can be directly ground without opening the mounting groove cutting tool 12 and the mounting flat cutting tool 13 without removing it from the cutting rotor 3. This is because the mounting groove cutting tool 12 and the mounting flat cutting tool 13 themselves have a shape that takes this into consideration. That is, both the groove cutting blade 4 and the flat cutting blade 5 are connected to the polishing guide groove 16 by engraving slightly inward from the bottom of the cutting edge to the inside thereof. , It is possible to easily grind by reciprocating while rotating the carbide whetstone with the shaft attached to the tip of the grinder for the whetstone with the shaft. About 5 minutes is usually sufficient for polishing of the embodiment in which a total of 24 mounting groove blade cutting tools 12 and fixed mounting blade cutting tools 13 are fixedly mounted on the cutting rotor 3. This is because in the conventional ogre powder manufacturing machine, it took 1-2 hours or several hours of polishing to remove the cutting blade, and due to the long polishing time, a rotary saw blade for replacement or cutting This is a great advantage compared to having to prepare another pair of blades as a spare.

Further, the cutting edge used in the present invention is also unavoidable in the process of manufacturing the ogre powder, and damage to the cutting edge due to nails, stone fragments, etc., which are often adhered and mixed in the ogre powder W. In many cases, it is only limited to partial damage, and it is also possible to partially repair it with a cemented carbide grindstone with a shaft attached at the tip of the grinder for a grindstone with a shaft.
Replacing with a new one is also quite easy.

The ogre powder material pressure-feeding device A was produced in the course of the trial and experiment research of the present invention. That is, while the cutting experiment of the ogre powder material W by the ogre powder material cutting device B is repeated, since the attached cutting blades are arranged in a spiral shape, a small amount of the ogre powder material W to be input is input. It was found that it was pushed toward the belt edge of the conveyor. Then, when this was covered by inclining the feeding conveyor 1 itself, not only it was solved but also the cutting edge of the ogre powder material W with a slightly large diameter that had been low in cutting efficiency up to that point was well bited. It was possible to increase the cutting amount. From this, in the ogre powder material pressure-feeding device A, the loading conveyor 1 is currently set to an inclination angle of about 10 ° with respect to the horizontal plane, but the effect is satisfactory from the above reason. This is ideally because this inclination angle is also related to the material and size of the sawdust powder W, so that the loading conveyor 1 itself should be moved up and down or inclined within a predetermined range. Therefore, it is expected to be improved to a more detailed compatible model.

The various effects of the present invention have been described above. However, since these effects are combined and work synergistically, the prototype machine according to the embodiment has an epoch-making powder epoch-making ability as compared with the conventional machine. It can be said that it can be said. For example, in the case of the cutting rotor system currently used, it is generally 30 m ₃
/ 8 hour machine has a motor power of 75-110
Although kw was required, it has been demonstrated according to the present invention that a similar horsepower can be achieved with a small horsepower of 22 kw. In addition, the noise generated by cutting was reduced to about 70 horns, a reduction of about 30% or more, and the user's welcome can be expected. Furthermore, because of its high performance and low noise, it may be possible to use it for an on-vehicle small-sized and light-weight ogre powder making machine for pruning branches, such as gardeners, and the disposal of pruning branches has become a major concern. It can sufficiently meet the demand from people.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view of the present invention.

FIG. 2 is a perspective view showing an ogre powder material cutting device of the present invention.

FIG. 3 is a perspective view of a mounting groove cutting tool of the present invention.

[Explanation of symbols]

 W is ogre powder A is ogre powder pressure feed device B is ogre powder material cutting device 1 is input conveyor 2 is pressing roll 3 is cutting rotor 4 is groove cutting blade 5 is flat cutting blade 6 is sorting screen 7 is ogre powder feeding device Outlet 8 is a suction duct 9 is a rotor shaft 10 is a fixed blade 11 is a cylindrical surface 12 is a mounting groove blade cutting tool 13 is a flat blade cutting tool 14 is a cover 15 is a cutting blade base 16 is a polishing guide groove 17 is mounting Hole 18 is a fitting hole 19 is a screw hole

Claims (4)

[Claims] 1. A mounting groove flute cutting tool in which a flute cutting blade 4 is obliquely arranged on a cylindrical surface 11 of a cutting rotor 3 in an oga powder manufacturing device constituted by an ogre powder material feeding device and an ogre powder material cutting device. 11 and a flat-blade cutting tool 12 in which the flat-cutting blades 5 are obliquely arranged are arranged and fixed in a spiral shape, and both of them are alternately arranged and fixed along the direction of rotation at predetermined intervals. Ogre powder manufacturing equipment. 2. A mounting groove blade cutting tool 11 instead of the mounting flat blade cutting tool 12 arranged and fixed to the cutting rotor 3 is arranged and fixed laterally along the rotation direction by a half of the groove interval. The ogre powder manufacturing apparatus according to claim 1. 3. The ogre powder manufacturing apparatus according to claim 1, wherein in the mounting groove blade cutting tool 11 and the mounting flat blade cutting tool 12, the groove cutting blade 4 and the flat cutting blade 5 are provided so as to project perpendicularly to the cutting direction. . 4. In the ogre powder material feeding device A, the belt surface of the feeding conveyor 1 and the fixed receiving blade 10 are 10 to 20 °.
The ogre powder manufacturing apparatus according to claim 1 and claim 2 provided with a front and rear inclination.