JPH0528002Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a wood crusher.

[Conventional technology]

When raw wood is sawn, a large amount of wood cuttings are generated from the raw wood and the wood that is being processed.

From the viewpoint of effective use of materials, instead of discarding these cuttings, conventionally, the cuttings are finely ground using a wood crusher and used as chips as raw material for paper manufacturing, or as feed for livestock. Furthermore, it was reused to make plywood by pressurizing and compressing it after mixing binding feed such as adhesive.

At this time, there is a conventional wood crusher having a structure as shown in FIGS. 6 and 7, for example. This conventional wood crusher has a rotating drum b attached to a rotating shaft a that can freely rotate by receiving the driving force of a motor M as a driving source.
A plurality of movable blades d having cutting edges c are removably attached at a desired angle of inclination using bolts e, etc., and installed rotatably relative to a fixed blade g provided on the processing table f. This is what I did. Note that h, i
are bearing parts for supporting the front and rear ends of the rotating shaft a.

Then, when the motor M as a drive source is driven,
The rotary drum b rotates around the rotary shaft a which passively rotates through power transmission parts such as pulleys and belts, so the movable blade d provided on the outer periphery of the rotary drum b rotates. When the cutting edge K of the wood is inserted between the fixed blade g provided on the table f, the cutting edge K is finely crushed by the plurality of movable blade bodies d and the fixed blade g.

[The problem that the idea attempts to solve]

However, in the above-mentioned conventional wood crusher, when the cut edge K of the wood is inserted between the fixed blade g and the plurality of movable blade bodies d attached to the rotating drum b, the cut edge K is Since the structure is such that the grinding process takes a lot of time, the work efficiency is poor.

Also, the cutting edge c of the movable blade d installed in the wood crusher may become dull, or the cutting edge c of the movable blade d may become dull.
If the wood is chipped, etc., the load will be increased on the motor M as a drive source and the power transmission parts that rotate passively by this driving force, reducing the lifespan of these parts, or the wood as a product will be damaged. The crushed state of the cutting edge K may not be of average size and may be irregular, or the processing state may deteriorate in terms of quality, and furthermore, the working time may be long or the working efficiency may be reduced.

In such a case, it is necessary to polish the movable blade d, but conventionally, the movable blade d has been removed from the rotating drum b and then polished using an automatic polishing machine or the like.

Therefore, the polishing work of the movable blade body d is time consuming;
During this time, wood crushing work was interrupted.

In addition, among the plurality of movable blade bodies d, the sharpness of the polished cutting blade c and the other cutting blades c differ, and there are disadvantages such as the state of pulverization of the wood by the cutting blade c is not uniform. .

[Means to try to solve the problem]

This idea was made in view of the above points, and one of them is a rotary shaft that receives the driving force of a motor and is rotatably provided on the processing table, and a rotary shaft that is attached to the input end side of the rotary shaft. a rotatable internally toothed ring gear; a rotatable cage body attached to the output side of the rotating shaft; and the ring gear attached to one end of a plurality of support shafts mounted on the cage body. planetary gears installed so that they can mesh; a plurality of movable blade bodies that are attached to approximately the middle of the support shaft and have worm-like cutting edges formed on the outer periphery; and a rotation locus of the movable blade bodies. A fixed blade is positioned on the processing table, and a means is adopted in which the movable blade is rotated and revolved with respect to the fixed blade.

The second invention employs a means of attaching an automatic polishing device characterized in that the movable blade body is provided with a polishing member that can be freely separated by a drive source such as a cylinder.

[Effect]

To crush the cutting edge K of the wood, the cutting edge K of the wood is inserted between a fixed blade and a movable tooth body that revolves while rotating by a planetary gear, and is crushed into fine pieces.

Further, the movable blade is polished by bringing a polishing member into contact with the movable blade and rotating the movable blade in the opposite direction.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 and 5.

1 is a processing table, and M is a motor provided on the processing table 1 as a drive source.

Reference numeral 2 denotes an internally toothed ring gear which is rotated by receiving the driving force of the motor M via a power transmission part such as a pulley or a transmission belt. Therefore, by being attached to the input end side of the rotating shaft that is rotatably supported, it is rotated around the rotating shaft 5.

Numeral 6 denotes four planetary gears meshed with the ring gear 2 so as to revolve around the rotational shaft 5 while rotating around the rotating shaft 5.
mounted at one end of the

Reference numeral 8 denotes a housing rotatably supported by the rotating shaft 5 via bearing parts 9a and 9b;
The support shaft 7 is rotatably supported via bearing parts 10a and 10b.

Reference numeral 11 denotes a movable blade body attached to a substantially intermediate portion of the support shaft 7, and a worm-like cutting blade 11a is formed on the outer periphery of the movable blade body 11.

12, the movable blade 1 is placed on the processing table 1;
This is a fixed blade located on the rotation locus of the movable blade body 11, and is designed to crush the cutting edge K of the wood in cooperation with the movable blade body 11.

In FIGS. 4 and 5, reference numeral 20 denotes a polishing member for polishing the movable blade 11 of the wood crusher, and the polishing member 20 is movable toward and away from the movable blade 11 on the X axis during polishing. It is mounted on a trolley 21 that is movable in direction X. Further, as this polishing member 20, for example, a substantially flat whetstone as shown in the figure is used, and this whetstone is designed so that it comes into elastic close contact with the cutting edge 11a of the movable blade body 11.
It may be formed by mixing an abrasive with rubber, plastic, or the like.

The trolley 21 has wheels 21a at its four corners that are rotatably mounted on the processing table 1 and run on rails 23, 23 laid perpendicular to the axial length direction of the support shaft 7 of the movable blade 11. The truck 21 becomes movable in the X-axis direction X, for example, by expanding and contracting a cylinder rod 24 of a cylinder s serving as a drive source with a fixed rear end. Further, as the cylinder s, an air cylinder is used which brings the polishing member 20 into elastic contact with the movable blade body 11 in order to sharpen the cutting edge 11a of the movable blade body 11 with good sharpness.

One embodiment of this invention has the above-mentioned configuration, and in order to crush the cutting edge K of the wood, first the motor M as a drive source is driven, and this driving force is transmitted through power transmission parts such as pulleys and belts. Since the ring gear 2 is passively rotated around the rotating shaft 5, the ring gear 2 is mounted on one end of the support shaft 7 supported by the housing 8 via bearing parts 10a and 10b, and the ring gear 2 is The four planetary gears 6 meshed with the rotating shaft 5 revolve around the rotation shaft 5 while being rotated around the support shaft 7 .

Therefore, when the cutting edge K of the wood is inserted between the four movable blade bodies 11 that revolve while rotating in this way and the fixed blade 12 provided on the processing table 1,
The incisal edge K is finely ground.

At this time, the planetary gear 6 is rotated once around the rotation axis 5 with respect to the ring gear 2, and many times around the support shaft 7 while it revolves around the ring gear 2. The worm-shaped movable blade 11 attached to the middle part rotates many times,
Since the contact rate increases with respect to the cutting edge K of the wood,
The incisal edge K is crushed into pieces within a short time. And work efficiency will improve. When the rotational speed of the motor M is increased, the rotational speed and revolution speed of the planetary gear 6 are increased, so that the time required for the crushing work can be further shortened and the work efficiency is increased.

Furthermore, by arbitrarily selecting the number of blades of the ring gear 2 and the planetary gear 6 meshing therewith, the movable blade body 11 can obtain high rotational torque even if the motor M is small. Therefore, even if there is a cut edge K of hard wood, it can be crushed within a short time.

The movable blade body 11 is used for crushing wood.
If the cutting edge 11a becomes dull or is chipped and needs to be polished, first drive the cylinder s to extend the cylinder rod 24 as shown in FIG. The trolley 21 travels on the rails 23, 23 in the X-axis direction X of the movable blade 11 and approaches it. The polishing member 20 mounted on the cart 21 comes into elastic contact with the movable blade 11.

Therefore, the motor M as a driving source is connected to the cutting edge K of the wood.
When the rotating shaft 5 and the ring gear 2 are rotated in the direction opposite to the direction of the crushing process, a plurality of planetary gears meshing with the ring gear 2 are rotated and driven. 6 revolves around the rotating shaft 5 while rotating in the direction opposite to the operation described above (the direction of flow of the cutting blade 11a). The attached movable blade 11 is in elastic contact with the abrasive member 20
By this, several cutting edges 11a are automatically and evenly polished without becoming irregular. At this time, the polishing may be controlled by gradually increasing the degree of pressure contact of the polishing member 20 against the cutting edge 11a with the cylinder rod 24 as the degree of polishing progresses. Further, the polishing angle of the polishing member 20 provided on the cart 21 with respect to the cutting edge 11a of the movable blade body 11 to be polished may be freely adjustable.

In this way, after the movable blade 11 is polished by the polishing member 20, when the cylinder rod 24 of the cylinder s is retracted, the carriage 21 is moved to the rails 23, 23.
The polishing member 20 moves back from the top, leaves the movable blade 11, and stands by in preparation for the next polishing operation.

In addition, in the above embodiment, the planetary gear 6 that meshes with the ring gear 2 and four movable blade bodies 11 are used, but this is just an example, and the number can be freely selected without being limited to this. . Also, the polishing member 2
Although the cylinder s is used as the drive source for the 0, the present invention is not limited to this, and it is also possible to use a motor as the drive source and drive the wheel 21a using the drive force using power transmission parts such as a pulley and a sprocket. Accordingly, the trolley 21 may be allowed to run on the rails 23, 23 in the X-axis direction.

[Effect of idea]

As described above, the movable blade revolves around the fixed blade set on the processing table while rotating on its own axis using planetary gears, so that the cutting edge of the wood inserted between the fixed blade and the movable blade can be It can be crushed in a short time, improving work efficiency.

Furthermore, this invention allows the movable blade to be automatically and efficiently polished within a short period of time without removing the movable blade from the support shaft. Furthermore, the cutting edges of the plurality of movable blade bodies can be efficiently and uniformly ground and aligned without any difference in sharpness, so the wood is crushed to a uniform size and the reliability of the product is increased.

[Brief explanation of drawings]

Fig. 1 is a half-sectional plan view showing an embodiment of this invention, Fig. 2 is a sectional view taken along the - arrow in Fig. 1,
Fig. 3 is a sectional view taken along the - arrow in Fig. 1, Fig. 4 is a half-sectional plan view of the movable blade in a state in which the movable blade is polished, and Fig. 5
6 is a plan view of this kind of conventional wood crusher, and FIG. 7 is a sectional view showing its usage. 1... Processing table, 2... Ring gear, 5
... Rotating shaft, 6 ... Planetary gear, 7 ... Support shaft, 8 ...
...Casing, 11...Movable blade body, 11a...Cutting blade, 1
2...Fixed blade, 20...Abrasive member, 21...Dolly, 21a...Wheel, 23...Rail.

Claims (1)

[Claims for Utility Model Registration] (1) A rotary shaft that is rotatably provided on a processing table by receiving the driving force of a motor, and a rotatable internal toothed ring that is attached to the input end of the rotary shaft. - A gear, a rotatable casing attached to the output side of the rotating shaft, and a planet installed at one end of a plurality of support shafts mounted on the casing so as to be able to mesh with the ring gear. a gear, a plurality of movable blades attached to approximately the middle of the spindle and having worm-like cutting edges formed on the outer periphery; 1. A wood crusher comprising a fixed blade provided therein, the movable blade body rotating and revolving around the fixed blade. (2) The wood crusher according to claim 1, wherein the movable blade body is provided with an abrasive member that can be freely separated by a drive source such as a cylinder.