JP2001070820A - Grinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit vibration and noise from being caused when a material to be treated is ground by using a grinder having such a structure that the center of gravity of the whole grinder is positioned on the shaft line of a rotary shaft of the grinder and also within a specified range of distance from a rotary blade. SOLUTION: The grinding process using this grinder 1 comprises: charging a material to be treated through a charge port 2a to accumulate the material in a grinding chamber 3; then opening the valve of a faucet 12, allowing water to flow and starting a motor 6, to rotate a rotary blade 8 through a rotary shaft 7; and in this rotating state, finely grinding the material to be treated in the grinding chamber 3 by impact received from the rotary blade 8 and cutting it in a space between the rotary blade 8 and stationary blades 9, wherein a weight member 13 is fitted to a hopper 2 from its outside, to balance the weight of the hopper 2 with the weight of the motor 6 and to shift the center of gravity of the whole grinder 1 from the original position 21 to a new position 22 being in the vicinity of the central position 20 of the rotary blade 8. Thus, vibration and noise can be inhibited from being caused when the material to be treated is ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher for crushing garbage, foam trays, PET bottles, and the like, and a method of adjusting the position of the center of gravity thereof.

[0002]

2. Description of the Related Art Conventionally, as a pulverizing apparatus for pulverizing food waste, such as kitchen garbage, for example, Japanese Utility Model Laid-Open No. 57-117741.
Japanese Patent Application Publication (hereinafter referred to as “A”) discloses that “a high-speed rotatable inner cylinder is concentrically supported inside an upright cylindrical main body, and a steel wire is arranged on the outer peripheral surface of the inner cylinder in a circumferential direction at regular intervals. A crushing device in which a bundle is protruded by a predetermined number of upper and lower stages is disclosed. However, according to the technology described in Japanese Patent Publication No. A, the processed material is entangled with the steel wire bundle, which is a rotary blade, and the crushing efficiency is reduced. Or had the problem of

[0003] Accordingly, we have disclosed in Japanese Patent Application No. 11-15614.
No. 7 (hereinafter referred to as “B” application) has been developed.

[0004] The pulverizing apparatus described in the application No. B will be described below with reference to the drawings.

FIG. 7 is a perspective view showing a main part of a conventional pulverizer.

In FIG. 7, reference numeral 31 denotes a pulverizing device described in Japanese Patent Application Publication No.
Denotes a grinding chamber which is provided immediately below the inlet 32 and forms a wall of the grinding chamber; 34, a motor which is provided at the lower part of the apparatus and serves as a power source;
5 is a rotating shaft which is directly connected to the motor 34 and is vertically installed at the center position of the grinding chamber 33 and rotates at a high speed; 36 is a rotating blade attached to the rotating shaft 35 and extended to the inner surface of the grinding chamber 33;
37 is a fixed blade attached to the inner surface of the crushing chamber 33;
Is a pulverized material inflow chamber provided in the lower part of the pulverized chamber 33, 39 is a bottom plate that separates the pulverized material inflow chamber 38 from the pulverized material inflow chamber 38, and 40 is a discharge path that is attached from the pulverized material inflow chamber 38 to the outside of the apparatus and discharges the pulverized material. , 41 is a sink and 42 is a faucet.

[0007] The operation of the crusher 31 configured as described above will be described below.

First, water is flowed from a faucet 42, and kitchen waste and water are introduced into a crushing chamber 33 from an inlet 32. Thereafter, the motor 34 is started, and the rotating shaft 35 is rotated at a high speed to rotate the rotating blade 36 at a high speed. The garbage thrown into the crushing chamber 33 receives the impact received from the rotating blade 36 and the fixed blade 37 and the rotating blade. It is pulverized by a shearing force between them. The pulverized kitchen waste flows into the pulverized substance inflow chamber 38 and is discharged from the discharge path 40.

[0009]

However, the above-mentioned conventional pulverizer has the following problems.

(1) Since the position of the center of gravity of the rotary blade and the position of the crushing device are distant from each other, the impact during the crushing operation acts as a force to rotate the crushing device with the center of gravity of the crushing device as a fulcrum. Loud vibration or noise is generated in the device, or
Vibration propagates to a foundation (for example, a sink) to which a crushing device is attached, and there is a problem that new vibration and noise are generated.

The present invention solves the above-mentioned conventional problems, and provides a crushing apparatus capable of suppressing vibration and noise by disposing a weight or the like in a crushing chamber, and by adjusting the position of the center of gravity. It is an object of the present invention to provide a method for adjusting the position of the center of gravity of a crusher capable of suppressing vibration and noise.

[0012]

In order to solve the above-mentioned problems, a pulverizing apparatus according to the present invention comprises a hollow structure having an inlet through which a processed material is introduced, and a hollow structure formed and introduced into the hollow structure. A crushing chamber for crushing the processed material, a crushed material inflow chamber formed below the crushing chamber and into which crushed material obtained by crushing the processed material from the crushing chamber flows, and one end communicating with the crushed material inflow chamber. A discharge path for discharging the pulverized material to the outside of the apparatus, a pulverizing chamber bottom plate that partitions a space in the hollow structure into the pulverizing chamber and the pulverized material inflow chamber, and a pulverizing chamber formed around a periphery of the pulverizing chamber bottom plate. The crushing chamber is formed of a communicating portion that communicates with the inflow chamber, a motor having one end having a rotating shaft reaching the crushing chamber, and a bendable rotary crushing body having one end fixed to the rotating shaft in the crushing chamber. Rotating blade and an inner wall of the hollow structure. A fixed blade that pulverizes the processed material in cooperation with the rotary blade, wherein the position of the center of gravity of the pulverizing device is the axis of the rotating shaft, and is predetermined by the rotary blade. .

With this configuration, it is possible to provide a pulverizing device capable of suppressing vibration and noise.

In order to solve the above-mentioned problems, a method of adjusting the position of the center of gravity of the crushing apparatus according to the present invention comprises adjusting the position of the center of gravity of the crushing apparatus by adjusting the vertical length of the crushing chamber.

With this configuration, it is possible to provide a method of adjusting the position of the center of gravity of the pulverizing apparatus, which can suppress vibration and noise.

[0016]

DETAILED DESCRIPTION OF THE INVENTION A crushing apparatus according to claim 1 of the present invention comprises a hollow structure having an inlet through which a processed material is introduced, and the processed material formed and introduced into the hollow structure. A pulverization chamber, a pulverized material inflow chamber formed below the pulverization chamber, into which pulverized material into which the processed material has been pulverized flows from the pulverization chamber, and one end communicating with the pulverized material inflow chamber to pass the pulverized material. A discharge path for discharging outside of the apparatus, a pulverizing chamber bottom plate for partitioning a space in the hollow structure into the pulverizing chamber and the pulverized material inflow chamber, and a pulverizing chamber and a pulverizing chamber inflow formed at a peripheral portion of the pulverizing chamber bottom plate. A communication section that communicates with the chamber, a motor having a rotating shaft having one end reaching the grinding chamber, and a rotary blade formed of a bendable rotary grinding body having one end fixed to the rotating shaft in the grinding chamber. The rotary blade fixed to the inner wall of the hollow structure A fixed blade to grind the treated material and work,
, Wherein the position of the center of gravity of the crushing device is the axis of the rotary shaft and is within a predetermined range from the rotary blade.

With this configuration, the following operation can be obtained.

(1) The position of the center of gravity is within a predetermined interval vertically from the position where the rotary blade collides with the workpiece on the rotary shaft (hereinafter referred to as the center position of the rotary blade).
The impact at the time of crushing the processed material does not become a rotating force amplified by the arm length from the center of gravity of the entire crushing device, but a force that tries to move the entire crushing device works, so the crushing device is extremely vibrated The vibration and noise can be suppressed.

Here, the position of the center of gravity is defined as {(distance from the input port to the bottom of the motor) / 7} vertically from the center position of the rotary blade.
Is preferably located on an extension of the rotation axis within the range, and more preferably located at the center position of the rotation axis.

According to a second aspect of the present invention, there is provided the crushing apparatus according to the first aspect, wherein a weight member is provided above a position where the rotary blade is provided. is there.

With this configuration, in addition to the function of the first aspect,
The following operation is obtained.

(1) By disposing the weight, the position of the center of gravity in the vicinity of the motor moves to the vicinity of the center position of the rotary blade. Since a force for moving the entire crushing device acts without causing a rotational force amplified by the length, the crushing device is very unlikely to vibrate, and vibration and noise can be suppressed.

Here, as the weight, an annular body which is fitted around the upper part of the hopper is preferably used. The weight and number of the weight are adjusted according to the weight of the motor and the hopper, the natural frequency of the material used, and the like.

According to a third aspect of the present invention, there is provided the pulverizing apparatus according to the first or second aspect, wherein an intervening portion is provided between the input port of the hopper and a location of the input port of the hopper. A vibration isolator provided, and a weight enclosed in the rubber isolator,
Is provided.

With this configuration, the following operation can be obtained in addition to the operation of the first or second aspect.

(1) By enclosing the weight in the vibration-isolating rubber, the position of the center of gravity near the motor moves to the vicinity of the center position of the rotary blade. Because the force that tries to move the entire crushing device works without becoming the rotational force amplified by the length of the arm,
The crusher is very hard to vibrate and can suppress vibration and noise.

(2) Since the vibration isolating rubber absorbs the vibration, the vibration and noise of the pulverizer are hardly transmitted to the installation location such as the sink, and the vibration and the noise can be suppressed.

According to a fourth aspect of the present invention, there is provided the pulverizing apparatus according to any one of the first to third aspects, wherein the pulverized material is formed in a convex shape at a predetermined portion of a bottom surface of the pulverized material inflow chamber. A raised bottom portion, and an upper portion of the motor is fitted into the raised bottom portion.

According to this configuration, the following operation can be obtained in addition to the operation of any one of the first to third aspects.

(1) Since the motor, which is a heavy object, can be moved to the vicinity of the center position of the rotary blade, the distance between the position of the center of gravity of the crusher and the center position of the rotary blade is also shortened, and the time of crushing the processing object is reduced. The impact is not a rotational force amplified by the length of the arm from the center of gravity of the entire crushing device, but a force that tries to move the entire crushing device works. And noise can be suppressed.

According to a fifth aspect of the present invention, there is provided a method for adjusting the position of the center of gravity of the crushing apparatus according to any one of the first to fourth aspects, wherein the length of the crushing chamber in the vertical direction is adjusted. By adjusting the position, the position of the center of gravity of the crushing device is adjusted.

With this configuration, the following operation is obtained.

(1) By adjusting the length of the grinding chamber in the vertical direction, the position of the center of gravity can be brought closer to the center position of the rotary blade. The impact of does not become a rotating force amplified by the length of the arm from the center of gravity of the entire crushing device, but a force that tries to move the entire crushing device acts, so the crushing device is very hard to vibrate, Vibration and noise can be suppressed.

According to a sixth aspect of the present invention, there is provided a method for adjusting the position of the center of gravity of the crushing apparatus according to any one of the first to fourth aspects, wherein the material and / or the thickness of the crushing chamber are adjusted. Is adjusted to adjust the position of the center of gravity of the crusher.

With this configuration, the following operation is obtained.

(1) By adjusting the material and / or thickness, the center of gravity can be brought closer to the center of the rotary blade. The crushing device is very hard to vibrate because the force that tries to move the whole crushing device does not become the rotating force amplified by the arm length from the center of gravity of the whole crushing device, and the vibration and noise Can be suppressed.

Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view showing a main part of a crushing apparatus according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 1 denotes a first embodiment of the present invention.
Is a hopper which is a hollow structure having an inlet 2a at the upper end into which a processed material, which is a processed material, is introduced, and may have a cylindrical shape, and need not necessarily be a cylindrical shape. Reference numeral 3 denotes a pulverizing chamber formed on the upper side in the hopper 2, and pulverizes the processed material introduced from the charging port 2a. Reference numeral 4 denotes a pulverized material inflow chamber formed on the lower side in the hopper 2, into which the pulverized processed material pulverized in the pulverization chamber 3 flows. Reference numeral 5 denotes a pulverizing chamber bottom plate for partitioning the pulverizing chamber 3 in the hopper 2 from the pulverized material inflow chamber 4, and between the end of the pulverizing chamber bottom plate 5 and the inner side wall of the hopper 2, a pulverized material inflow chamber 4 is provided. There is formed a communication portion 5 'for inflowing into the space. Reference numeral 6 denotes a motor serving as a power source disposed below the pulverized material inflow chamber 4, that is, at the bottom of the hopper 2. Reference numeral 7 denotes one end fixed to the motor 6 and the other end penetrating through the pulverized material inflow chamber 4 to the pulverization chamber 3. The rotating shaft is arranged along a central axis perpendicular to the bottom surface of the hopper 2.
Reference numeral 8 denotes a rotary blade disposed inside the crushing chamber 3 and having one end fixed to the rotary shaft 7 and the other end positioned near the inner wall of the hopper 2, a chain member such as a roller chain, a rope member such as a wire, rubber, It is composed of a bendable rotary pulverized body (hereinafter, referred to as a flexible member) such as an elastic body such as a spring or a synthetic resin. Reference numeral 9 denotes a fixed blade fixed to the inner wall of the hopper 2 on the side of the crushing chamber 3 and crushes the processed material in cooperation with the rotary blade 8. Reference numeral 10 denotes a discharge path having one end communicating with the pulverized material inflow chamber 4, reference numeral 11 denotes a sink formed by opening the input port 2a of the hopper 2, reference numeral 12 denotes a faucet disposed on the sink 11, and reference numeral 13 denotes an outer fitting to the hopper 2. Annular weight member, the number of which is 1 in accordance with the natural frequency of the hopper 2.
The above is arranged. Reference numeral 20 denotes a center position of the rotary blade indicating a position (height) on the rotary shaft 7 at which the processed object receives an impact from the rotary blade 8 or the fixed blade 9. Reference numeral 21 denotes a case where the weight member 13 is not provided on the hopper 2. The position of the center of gravity of the crushing device 1 (conventional center of gravity position), 22 is the position of the center of gravity of the crushing device 1 when the weight member 13 is disposed on the hopper 2. From the bottom of the motor 6)
It is located on the extension of the rotating shaft 7 at the position of / 9 °.

The operation of the crusher 1 according to the first embodiment configured as described above will be described below.

First, a processed material is charged from the charging port 2 a and stored in the pulverizing chamber 3. Next, the faucet of the faucet 12 is opened and water is allowed to flow. Then, the motor 6 is started to rotate the rotary blade 8 via the rotary shaft 7.

Thus, the processed material in the crushing chamber 3 is
The powder is finely pulverized by the impact received from the blade and the cutting between the fixed blade 9. At this time, when the weight member 13 is not fitted to the hopper 2, the motor 6 is heavier than the hopper 2.
In one. However, the center position 20 of the rotary blade is the center of gravity position 2
1, the impact at the time of crushing the processed material acts as a force to rotate the crushing device 1 with the center of gravity 21 of the crushing device 1 as a fulcrum, and acts on the crushing device 1. Vibration occurs. This vibration is transmitted to the sink 11 and causes a large noise.

The weight of the hopper 2 and the motor 6 is balanced by fitting the weight member 13 to the hopper 2 so that the center of gravity of the entire crusher 1 is shifted from the center of gravity 21 to a position near the center 20 of the rotary blade. Move to the center of gravity position 22. Thus, the impact at the time of pulverizing the processed material changes from a force for rotating the crushing device 1 to a force for moving the entire crushing device 1. In other words, in the case of a rotational force (moment), since the force acts on the crusher by the principle of leverage, even a small impact is amplified by the length of the arm from the center of gravity, and the crusher 1
However, when the center position 20 and the center of gravity of the rotary blade, at which the rotary blade 8 and the fixed blade 9 perform grinding, are close to the center of gravity, the grinding device 1 is very unlikely to vibrate and noise is reduced. Become.

Here, the position of the center of gravity 2 having the effect of reducing vibration
2 is an extension of the rotary shaft 7 in the range of {(distance from the input port 2a to the bottom of the motor 6) / 7} above and below from the center position 20 of the rotary blade, preferably the center position 20 of the rotary blade.
Above.

The pulverized processed material passes through the communicating portion 5 ′, flows into the pulverized material inflow chamber 4, and is discharged from the discharge passage 10 to the outside of the apparatus.

(Embodiment 2) FIG. 2 is a perspective view of a main part of a pulverizing apparatus according to a second embodiment of the present invention, and FIG. 3 is a perspective view of a main part of a vibration-proof rubber according to a second embodiment of the present invention. It is.

2 and 3, reference numeral 2 denotes a hopper, 2a
Is an inlet, 3 is a crushing chamber, 5 is a crushing chamber bottom plate, 5 'is a communicating part, 6 is a motor, 7 is a rotating shaft, 8 is a rotary blade, 9 is a fixed blade, 10 is a discharge path, 11 is a sink, 12 Is a faucet, 20 is the center position of the rotary blade, and 21 is the position of the conventional center of gravity. These are the same as in the first embodiment.

1a is a crushing device according to the second embodiment of the present invention, 14 is an annular vibration-proof rubber provided between the input port 2a of the hopper 2 and the sink 11, and 15 is sealed in the vibration-proof rubber. The annular weight 23 is the position of the center of gravity of the crushing device 1a when the vibration isolating rubber is provided.

The operation of the crushing apparatus 1a according to the second embodiment configured as described above will be described below.

First, the processed material is placed in the inlet 2a of the vibration isolating rubber 14.
And stored in the crushing chamber 3. Next, the faucet of the faucet 12 is opened and water is allowed to flow. Then, the motor 6 is started to rotate the rotary blade 8 via the rotary shaft 7.

Thus, the processed material in the crushing chamber 3 is
The powder is finely pulverized by the impact received from the blade and the cutting between the fixed blade 9. At this time, when the weight 15 is not sealed in the vibration isolating rubber 14, the weight of the motor 6 is larger than that of the hopper 2, so that the center of gravity of the entire crushing device 1 is the position of the center of gravity 2 in the motor 6.
In one. However, the center position 20 of the rotary blade is the center of gravity position 2
1, the impact at the time of crushing the processed material acts as a force to rotate the crushing device 1 amplified by the arm length from the center of gravity 21 of the crushing device 1. Then, a large vibration is generated in the crushing device 1. This vibration is transmitted to the sink 11 and causes a large noise.

Therefore, the weight of the hopper 2 and the motor 6 is balanced by enclosing the weight 15 in the vibration isolating rubber 14, and the center of gravity of the entire crusher 1a is shifted from the center of gravity 21 to the vicinity of the center 20 of the rotary blade. Move to the center of gravity position 23. Thus, the impact at the time of pulverizing the processed material changes from a force for rotating the crushing device 1 to a force for moving the entire crushing device 1a. In other words, in the case of a rotational force, since the force acts on the crushing device 1a based on the principle of leverage, the crushing device 1a vibrates even with a small impact. When the center 20 and the position of the center of gravity are close to each other, the crushing device 1a is extremely unlikely to vibrate, and noise is reduced.

Further, since the vibration isolating rubber 14 absorbs the vibration of the hopper 2, the vibration is hardly transmitted to the sink 11, and the noise is reduced.

(Embodiment 3) FIG. 4 is a perspective view showing a main part of a pulverizing apparatus according to Embodiment 3 of the present invention.

In FIG. 4, 2 is a hopper, 2a is an inlet, 3 is a crushing chamber, 5 is a crushing chamber bottom plate, 5 'is a communicating part, 6 is a motor, 7 is a rotating shaft, 8 is a rotary blade, and 9 is a fixed part. Blade 10, discharge path, 11 sink, 12 faucet, 20 the center position of the rotary blade, 21 the position of the center of gravity of the conventional, and these are the same as in the first embodiment. The description is omitted.

1b is a pulverizer according to the third embodiment,
Reference numeral 16 denotes a convex portion formed on the bottom surface of the crushing chamber, and reference numeral 24 denotes a center of gravity of the crushing device 1b. The inside of the convex portion 16 is hollow, and the rotor 6 of the motor 6 and the upper end of the stator are fitted therein. Therefore, the center of gravity position 24 of the crusher 1b moves upward and is near the center position 20 of the rotary blade.

The operation of the crusher 1b according to the third embodiment configured as described above will be described below.

First, the processed material is charged from the charging port 2 a of the hopper 2 and stored in the pulverizing chamber 3. Next, the faucet of the faucet 12 is opened and water is allowed to flow. Then, the motor 6 is started to rotate the rotary blade 8 via the rotary shaft 7.

As a result, the processed material in the crushing chamber 3 is
The powder is finely pulverized by the impact received from the blade and the cutting between the fixed blade 9.

At this time, since the upper end portions of the rotor and the stator of the motor 6 are fitted into the projections 16, the center of gravity position 24 of the crusher 1b is close to the center position 20 of the rotary blade.
The crushing device 1b is very hard to vibrate and noise is reduced.

(Embodiment 4) FIG. 5 is a perspective view showing a main part of a pulverizing apparatus according to Embodiment 4 of the present invention.

In FIG. 5, 2a is an inlet, 3 is a crushing chamber, 5 is a crushing chamber bottom plate, 5 'is a communicating part, 6 is a motor, 7 is a rotating shaft, 8 is a rotary blade, 9 is a fixed blade, and 10 is a fixed blade. Drainage path, 11
Is a sink, 12 is a faucet, 20 is the center position of the rotary blade, 21
Are the conventional positions of the center of gravity, which are the same as those in the first embodiment.

1c is a pulverizer according to the fourth embodiment,
2b is a hopper whose length in the rotation axis direction is extended, and 25 is a position of the center of gravity when the length of the hopper 2b in the rotation axis direction is extended. By extending the length of the hopper 2b in the rotation axis direction, the center of gravity of the hopper 2b moves from the center of gravity position 21 to the center of gravity position 25.

The operation of the crushing apparatus 1c according to the fourth embodiment configured as described above will be described below.

First, the processed product is charged from the input port 2a of the hopper 2b and stored in the pulverizing chamber 3. Next, the faucet of the faucet 12 is opened and water is allowed to flow. Then, the motor 6 is started and the rotating shaft 7
The rotary blade 8 is brought into a rotating state via.

Thus, the processed material in the crushing chamber 3 is
The powder is finely pulverized by the impact received from the blade and the cutting between the fixed blade 9. At this time, when the length of the hopper 2b is not extended in the direction of the rotation axis, the weight of the motor 6 is larger than that of the hopper 2b, so that the center of gravity of the entire crusher 1 is located at the center of gravity 21 in the motor 6. However, since the rotary blade 8 and the fixed blade 9 are located at positions separated from the position of the center of gravity 21, the impact at the time of crushing the processed material is amplified by the arm length from the position of the center of gravity 21 of the crushing device 1. This acts as a force to rotate the crusher, and large vibrations are generated in the crusher 1. This vibration is transmitted to the sink 11 and causes a large noise.

Therefore, by extending the length of the hopper 2b in the rotation axis direction and moving the center of gravity of the hopper 2 from the center of gravity position 21 to the center of gravity position 25, the center of gravity of the crusher 1c is moved to the center position 20 of the rotary blade. You can get closer. That is, by adjusting the length of the hopper 2 in the rotation axis direction, the weight of the hopper 2 can be used as a weight, and thus the center of gravity of the crushing device 1c can be adjusted. Thereby, vibration and noise of the crushing device 1c can be suppressed.

(Embodiment 5) FIG. 6 is a perspective view showing a main part of a pulverizing apparatus according to Embodiment 5 of the present invention.

In FIG. 6, 2a is an inlet, 3 is a crushing chamber, 5 is a crushing chamber bottom plate, 5 'is a communicating part, 6 is a motor, 7 is a rotating shaft, 8 is a rotary blade, 9 is a fixed blade, and 10 is a fixed blade. Drainage path, 11
Is a sink, 12 is a faucet, 20 is the center position of the rotary blade, 21
Are the conventional positions of the center of gravity, which are the same as those in the first embodiment.

1d is a pulverizer according to the fifth embodiment,
2c is a hopper whose thickness is adjusted. By increasing the thickness of the hopper 2c, the center of gravity of the hopper 2c moves from the center of gravity position 21 to the center of gravity position 26.

The operation of the crushing device 1d according to the fifth embodiment configured as described above will be described below.

First, the processed material is charged from the charging port 2a of the hopper 2c and stored in the pulverizing chamber 3. Next, the faucet of the faucet 12 is opened and water is allowed to flow. Then, the motor 6 is started and the rotating shaft 7
The rotary blade 8 is brought into a rotating state via.

As a result, the processed material in the crushing chamber 3 is
The powder is finely pulverized by the impact received from the blade and the cutting between the fixed blade 9. At this time, when the thickness of the hopper 2c is not increased, the weight of the motor 6 is larger than that of the hopper 2c.
In one. However, the rotating blade 8 and the fixed blade 9 are located at the center of gravity 21d.
Since it is located at a position further above, the impact at the time of crushing the processed material acts as a force to rotate the crushing device 1d amplified by the arm length from the center of gravity position 21 of the crushing device 1d, Large vibration is generated in the crusher 1d. This vibration is transmitted to the sink 11 and causes a large noise.

Therefore, by adjusting the thickness of the hopper 2c, the balance between the hopper 2c and the motor 6 is maintained, and the center of gravity of the crushing chamber device 1d is moved from the center of gravity position 21 to the center of gravity position 26 so that the center position 20 of the rotary blade is adjusted. Get closer. For example, when the hopper 2c is made of iron as compared with the case where the hopper 2c is made of aluminum and the center of gravity position 26 of the crusher is adjusted, the specific gravity is aluminum 2.7 and iron 7.8. As a result, the thickness can be reduced to 1/3 of that of aluminum, and the size can be reduced. In other words, the thickness of the hopper 2c is determined by the material of the hopper 2c, the weight of the hopper 2c itself is used as a weight, the position of the center of gravity of the crusher 1d is adjusted, and vibration and noise can be suppressed.

[0075]

As described above, according to the pulverizer of the present invention, the following advantageous effects can be obtained.

According to the first aspect of the present invention, (1) the position at which the rotary blade collides with the workpiece is moved up and down from the position (hereinafter referred to as the center position of the rotary blade) by a predetermined amount. Since the center of gravity is located within the interval, the impact at the time of crushing the processed material does not become the rotational force amplified by the arm length from the center of gravity of the entire crushing device, but the force to move the entire crushing device. Since it works, the crushing device is very unlikely to vibrate, and a crushing device capable of suppressing vibration and noise can be provided.

According to the invention described in claim 2, according to claim 1
(1) By disposing the weight member, the position of the center of gravity near the motor moves to the vicinity of the center position of the rotary blade. Because the force that tries to move the whole crushing device works without the rotational force amplified by the arm length of the arm, the crushing device is very hard to vibrate, and a crushing device that can suppress vibration and noise is used. Can be provided.

According to the third aspect of the present invention, a first aspect is provided.
In addition to the effects of (2), (1) Since the center of gravity near the motor moves to the vicinity of the center position of the rotary blade by enclosing the weight in the vibration isolating rubber, the impact at the time of crushing the processed material is reduced by the crushing device. Since the force to move the entire crusher works instead of the rotational force amplified by the arm length from the whole center of gravity, the crusher is very unlikely to vibrate, suppressing vibration and noise. A possible grinding device can be provided.

(2) Since the vibration isolating rubber absorbs the vibration, the vibration and noise of the crushing device are hardly transmitted to the installation location such as the sink, and the crushing device capable of suppressing the vibration and the noise can be provided.

According to the invention set forth in claim 4, according to claim 1
In addition to the effects described in any one of (1) to (3), (1) the motor, which is a heavy object, can be moved to the vicinity of the center position of the rotary blade. The distance becomes shorter, and the impact at the time of crushing the processed material does not become the rotational force amplified by the arm length from the center of gravity of the entire crushing device, but the force that tries to move the entire crushing device acts,
The crushing device is very hard to vibrate, and can provide a crushing device capable of suppressing vibration and noise.

According to the fifth aspect of the present invention, (1) by adjusting the vertical length of the grinding chamber,
The center of gravity can be moved closer to the center of the rotating blade, so the center of gravity can be moved closer to the center of the rotating blade. Instead, the force to move the whole crusher works, so the crusher is very hard to vibrate,
A method of adjusting the position of the center of gravity of the crusher that can suppress vibration and noise can be provided.

According to the sixth aspect of the present invention, (1) the center of gravity can be brought closer to the center position of the rotary blade by adjusting the material and / or thickness, so that the center of gravity is positioned at the center position of the rotary blade. Close the position, and the impact when crushing the processed material does not become the rotational force amplified by the arm length from the center of gravity of the whole crushing device, but the force that tries to move the whole crushing device works, so the crushing device Can provide a method of adjusting the position of the center of gravity of a pulverizing apparatus, which is very difficult to vibrate and can suppress vibration and noise.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a crusher according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of a crusher according to a second embodiment of the present invention.

FIG. 3 is a perspective view of a main part of an anti-vibration rubber according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a main part of a crusher according to a third embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of a crusher according to a fourth embodiment of the present invention.

FIG. 6 is a perspective view of a main part of a crusher according to a fifth embodiment of the present invention.

FIG. 7 is a perspective view of a main part of a conventional crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c, 1d Crusher 2, 2b, 2c Hopper 2a Input port 3 Crush chamber 4 Crushed material inflow chamber 5 Crush chamber bottom plate 5 'Communication part 6 Motor 7 Rotary shaft 8 Rotary blade 9 Fixed blade 10 Discharge path 11 Sink 12 faucet 13 weight member 14 anti-vibration rubber 15 weight 20 center position of rotary blade 21, 22, 23, 24, 25, 26 center of gravity position 31 conventional crushing device 32 input port 33 crushing chamber 34 motor 35 rotating shaft 36 rotation Blade 37 Fixed blade 38 Crushed material inflow chamber 39 Bottom plate 40 Discharge path 41 Sink 42 Water faucet

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (reference) B09B 3/00 ZAB B29B 17/00 B29B 17/00 B09B 3/00 ZABZ F-term (reference) 4D004 AA03 AA09 AA10 AC02 CA04 CB13 4D065 CA16 CB10 CC03 DD04 DD18 DD24 EB14 EB17 ED06 ED11 ED27 ED32 ED41 EE01 EE20 4D067 EE01 EE42 EE46 EE48 EE50 GA16 GA17 4F301 AA15 AA25 BE29 BF12

Claims (6)

[Claims] 1. A hollow structure having an input port into which a processed material is introduced, a pulverizing chamber formed in the hollow structure to pulverize the processed material, and a pulverizing chamber formed below the pulverizing chamber. A pulverized material inflow chamber into which the pulverized material obtained by pulverizing the processed material flows from the pulverization chamber; a discharge path having one end communicating with the pulverized material inflow chamber to discharge the pulverized material out of the apparatus; and a space in the hollow structure A crushing chamber bottom plate partitioning the crushing chamber and the crushed material inflow chamber, a communication portion formed near a periphery of the crushing chamber bottom plate and communicating the crushing chamber and the crushing chamber inflow chamber, one end of the crushing chamber A motor having a rotating shaft that reaches the rotating blade, a rotating blade formed of a bendable rotating grinding body having one end fixed to the rotating shaft in the grinding chamber, and the rotating blade fixed to an inner wall of the hollow structure. A fixed blade that cooperates to grind the processed material, A milling device equipped with, the center of gravity of the grinding device, a axis of said rotary shaft, and grinding apparatus, characterized in that in a predetermined range from the rotary blade. 2. The crusher according to claim 1, wherein a weight member is provided above a position where the rotary blade is provided. 3. An anti-vibration rubber interposed between the input port of the hopper and an installation location of the input port of the hopper, and a weight sealed in the anti-vibration rubber. The crushing device according to claim 1 or 2, wherein: 4. A method according to claim 1, further comprising a raised bottom formed in a convex shape at a predetermined portion of a bottom surface of said pulverized material inflow chamber, wherein an upper portion of said motor is fitted into said raised bottom. The crushing device according to any one of the preceding claims. 5. A method for adjusting the position of the center of gravity of a crushing device according to claim 1, wherein the position of the center of gravity of the crushing device is adjusted by adjusting the vertical length of the crushing chamber. Of adjusting the position of the center of gravity of the pulverizing device for adjusting the weight 6. A method for adjusting the position of the center of gravity of the crushing apparatus according to claim 1, wherein the material and / or the thickness of the crushing chamber is adjusted to thereby control the center of gravity of the crushing apparatus. Of adjusting the position of the center of gravity of the crusher for adjusting the position of the crusher.