JP2001104925A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage treatment apparatus which can prevent troubles such as the solidification of garbage or the generation of offensive odors by preventing the generation of an agitation-impossible area in advance without making the apparatus complex and without increasing the size of the apparatus. SOLUTION: In the garbage treatment apparatus equipped with an agitation means 4 for agitating garbage housed in a fermentation tank 1, the agitation means 4 has agitation blades 4 arranged in the axial direction of a rotary shaft 3 and a driving source 5 for rotating the rotary shaft 3, and the rotary shaft 3 can be moved in the axial direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus for composting garbage such as garbage generated in a home kitchen or a commercial kitchen by aerobic fermentation and decomposition, and more particularly, to a garbage disposal apparatus. The present invention relates to a mechanism for mixing and stirring processed materials such as garbage.

[0002]

2. Description of the Related Art Composting of garbage is accomplished by fermenting and decomposing organic matter in the garbage with the aid of microorganisms. This fermentation generally employs an aerobic fermentation decomposition method in which oxygen is added to the processed product for fermentation because of advantages such as high fermentation heat obtained during fermentation and little generation of malodor accompanying fermentation. ing. In order to promote this aerobic fermentation, it is necessary to prepare an optimum environment for the activity of microorganisms. It is necessary to maintain the water state and the like, supply oxygen necessary for fermentation, and maintain an appropriate temperature.

[0003] For this purpose, a conventional general garbage disposing apparatus includes, in addition to a fermentation tank, a stirring means for equalizing the state of the whole processed material put into the fermentation tank, oxygen supply, and the like. The apparatus is provided with a ventilation means for adjusting the moisture condition and a heating means for keeping the temperature inside the fermenter at a certain value.

[0004] As a mechanism for mixing the processed material, for example, there is a structure using a stirring blade A1 provided in a fermenter A capable of storing the processed material, as shown in FIG. As shown in FIG. 7, the stirring blades A1 are provided at a plurality of locations along the axial direction of the rotation support shaft A2, and are provided at different mounting positions along the rotation direction, and are accommodated. It stirs the processed material to make contact with the air.

[0005]

To improve the stirring efficiency by the stirring blades to promote the fermentation decomposition, this kind of method has been proposed.
This is important for preventing the decomposition of garbage in the garbage disposal device and preventing the generation of offensive odors. However, in FIG. 5, as indicated by reference numeral P, a portion where the processed material does not directly contact the stirring blade A1 occurs. For this reason, conventionally, it has been considered to increase the stirring area by increasing the number of stirring blades A1 or devising various blade shapes. As described above, when the number of blades is increased or the shape is devised, there is a possibility that the stirring power is increased, the strength of the apparatus is increased, and the size of the apparatus is increased. Therefore, as shown in FIG. 5, if there are many non-stirring regions (regions indicated by reference symbol P in FIG. 5), a problem such as solidification of the processed material in that portion or giving off a bad smell occurs. The result is poor handling for the user.

SUMMARY OF THE INVENTION In view of the above-mentioned problems in the conventional garbage disposal apparatus, the object of the present invention is to prevent the generation of a non-stirrable area without causing the apparatus to become complicated and large, and to solidify the processed material. Another object of the present invention is to provide a garbage disposal apparatus having a configuration capable of reliably preventing a problem such as emitting a bad smell.

[0007]

In order to achieve this object, the invention according to claim 1 is directed to a garbage disposal apparatus provided with a stirring means for stirring and mixing the processed materials accommodated in a fermentation tank. The means comprises a plurality of stirring blades arranged along the axial direction of the rotating shaft, and a drive source for rotating the rotating shaft, wherein the rotating shaft is configured to be movable in the axial direction. I have.

The invention according to claim 2 is characterized in that the rotating shaft is movable in the axial direction in conjunction with the rotation.

The invention according to claim 3 is characterized in that the rotating shaft is movable by selecting either synchronous or asynchronous with the rotation cycle.

[0010] According to a fourth aspect of the present invention, the rotary shaft includes:
A part of a rotation transmitting means which can be interlocked with the driving source is provided, and the part is configured to be movable in the axial direction regardless of the rotation of the rotation transmitting means.

According to a fifth aspect of the present invention, the rotary shaft is configured to reciprocate according to the forward / reverse rotation of the drive source.

[0012]

According to the first to third aspects of the present invention, since the rotating shaft provided with the stirring blade can be moved in the axial direction, the position of the stirring blade can be changed in the axial direction of the rotating shaft. Accordingly, the stirring blade can uniformly contact the processing object in the axial direction, and thus, the area where the processing object cannot be stirred can be eliminated.

According to the fourth aspect of the present invention, the rotating shaft can be moved regardless of the rotation of the rotation transmitting means.
When it is determined that a non-stirring region of the processed material has been generated, the stirring blade can be positioned with respect to the region.

According to the fifth aspect of the present invention, the rotating shaft can be automatically moved in the axial direction according to the forward / reverse rotation of the drive source.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a schematic diagram for explaining a principle configuration of a stirring mechanism applied to a garbage disposal apparatus according to an embodiment of the present invention. In FIG. 1, a rotating shaft 3 is rotatably and axially slidably supported by bearing members 2 and 2 provided on a side wall of a fermenter 1 capable of storing a processed product. ing. The rotating shaft 3 is provided with a plurality of stirring blades 4 in the fermenter 1 along the axial direction in the axial direction with the phases shifted in the rotating direction.

At one end of the rotating shaft 3, a driving source 5 for rotating the rotating shaft 3 and a sliding mechanism 6 for sliding in the axial direction are provided. The drive source 5 is constituted by a motor in which a drive-side chain sprocket 7 serving as one of the rotation transmission means is attached to an output shaft, and the drive-side chain sprocket 7 has a rotation transmission fixed to the rotation shaft 3. Driven chain sprocket 8 which is the other of the means
And the chain 9 hung between them.

On the other hand, the sliding mechanism 6 comprises a flywheel 6A fixed to the rotary shaft 3 and a roller member 6B1 opposed to both end faces of the flywheel, which is attached to the tip of a pair of arms. 6B2, a rack 6B3 fixed to the base end side of the sliding member 6B2,
A pinion 6B4 meshing with B3 and a drive motor 6B5 for the pinion 6B4 are provided.

The rotating shaft 3 and the driven-side chain sprocket 8 are connected by engagement via a spline (not shown) provided at one end which is a part of the rotating shaft 3. 3 can slide independently of the driven chain sprocket 8 in the axial direction independently of its rotation.

In such a configuration, the stirring blade 4 can be rotated by the rotation of the rotating shaft 3 by the drive source 5 through the chain 9, and the rotation of the drive motor 6 B 5 in the sliding mechanism 6 can be performed. The rotating shaft 3 can slide in any of the directions indicated by the arrows in the drawing through the pinion 6B4 and the rack 6B3 in the same direction. Thus, the stirring blade 4 can be moved in the axial direction while rotating, so that the stirring area by the stirring blade 4 can be expanded, and the generation of the unstirable region can be eliminated.

Another embodiment of the sliding mechanism of the rotating shaft 3 will be described below based on the principle configuration shown in FIG. FIG.
FIG. 3 is a view showing an installation end of a driven-side chain sprocket 8 on the rotating shaft 3, and the sliding mechanism shown in the drawing uses a hydraulic cylinder 10 connected to the shaft end of the rotating shaft 3. That is, a hydraulic cylinder 10 provided with a rod 10A that can be interlocked by a pin connection is disposed at the shaft end of the rotating shaft 3, and the rotating shaft 3 is extended and contracted by the rod 10A.
Can slide in the axial direction. In the present embodiment, when the rotation shaft 3 reaches a predetermined number of rotations, the hydraulic cylinder 10 performs the expansion and contraction driving of the rod 10A. Thus, when the stirring blade 4 reaches a predetermined number of rotations, the stirring blade 4 comes into contact with a processing object in a region different from the processing object that has been touched so far, and the stirring region is expanded. In FIG. 2, reference numeral 3A denotes a spline engagement portion, and by such a connection, the rotation is performed irrespective of the rotation of the rotation transmitting means as in the embodiment shown in FIG. The axis can be moved. In the present embodiment, the rod 10A that advances and retreats in the hydraulic cylinder 10 has a rotatable and expandable structure, and can slide the rotary shaft 3 without being affected by the rotation of the rotary shaft. I can do it.

In the embodiment shown in FIGS. 1 and 2,
The following states can be selected for the rotation operation of the rotating shaft 3 and the expansion / contraction operation of the hydraulic cylinder 10. That is, as a first example of selection, the hydraulic cylinder 10
Is performed. In this case, since the stirring blade 4 moves to a different position during the stirring and continues stirring, the processed material at a different position in the axial direction of the rotating shaft 3 can be continuously stirred. Such a state, for example,
The fermenter 1 is provided with a window or the like through which the inside can be seen, and the stirring blade 4 is used in a case where the stirring area is changed immediately when a portion that is not stirred by the processed material is found through observation from the window. It is convenient because it is not necessary to stop.

As a second selection example, when the number of rotations of the rotating shaft 3 reaches a predetermined value, the rotating shaft 3 is temporarily stopped, and the hydraulic cylinder 10 is switched to the extending or contracting operation. In this case, in the fermenter 1, the processed material which has been solidified without touching the stirring blade 4 can be broken down by the stirring blade 4 moving in the axial direction. The third selection example is the same as that of the second selection example up to the temporary stop, and after rotating the hydraulic cylinder 10 to the extension or contraction operation, the rotating shaft 3 is rotated in the opposite direction to that before the stop. In this case, the opposite side of the deposition position of the processed material that has been stirred and collapsed before the stop around the rotation axis can be set as the deposition position of the processing material that has been solidified up to that point. The accumulation of the processing objects can be equalized, and the load acting on the rotating shaft 3 can be prevented from shifting.

The sliding mechanism is not limited to a simple linear movement as in the case of the hydraulic cylinder 10, but may be configured to convert a rotational movement into an axial movement. FIGS. 3 to 5 are views showing the configuration in this case. In FIG. 3 to FIG. 5, a boss 8 </ b> A of the driven side chain sprocket 8 has a trapezoidal screw formed on the inner surface through which the rotary shaft 3 is inserted. The side screw sleeve 11 is integrated. As shown in FIGS. 3 to 5, the rotary shaft 3 has a shaft-side screw formed with a trapezoidal screw formed on the outer peripheral surface at an end corresponding to the boss-side screw sleeve 11 so as to fit with the boss-side screw sleeve 11. The sleeve 12 is integrated. A stopper 12A having an outer diameter capable of contacting the end face of the boss portion 8A of the driven side chain sprocket 8 is integrally provided at the shaft end of the rotating shaft 3, and as shown in FIG. The collision prevents the shaft-side screw sleeve 12 from coming off the boss-side screw sleeve 11. The end surface of the boss side screw sleeve 8A opposite to the boss portion 8A is located at a position where the large diameter head 12B of the shaft side screw sleeve 12 can abut, and the large diameter head 12B abuts. The amount of movement in the direction in which the radial head 12B approaches the opposite end surface is defined.

The sliding mechanism shown in FIG. 3 uses the rotation of the driven side chain sprocket 8 to move the shaft side screw sleeve 12 in the axial direction to change the position of the stirring blade 4. I have. In other words, the boss portion 8A or the boss-side screw sleeve 11 and the shaft-side screw sleeve 12 are in such a relationship that any one of the stopper 12A and the large-diameter head portion 12B can be brought into frictional contact. For this reason, the inertial mass of the stirring blade 4 is used to provide a time lag between the time when the driven side chain sprocket 8 starts rotating and the time when the stirring blade 4 rotates, and during the shift, the driven side sprocket 8 is driven. Shaft side screw sleeve 12 meshing with boss side screw sleeve 11 interlocking with chain sprocket 8
The stopper 12A can be moved until the stopper 12A comes into contact with the end face of the boss 8A or the large-diameter head 12B comes into contact with the end face of the boss-side screw sleeve 11.

When the stopper 12A or the large diameter head 12B abuts on the end face of the boss 8A (see FIG. 4) or the end face of the boss side screw sleeve 11 (see FIG. 5), the shaft side screw sleeve 12 is compacted. Therefore, either the stopper 12A or the large diameter head 12B and the boss 8A
Or the end surface of the boss-side screw sleeve 11 is frictionally engaged. As a result, the rotation of the driven-side chain sprocket 8 is transmitted to the rotating shaft 3. FIG. 4 shows a state in which the stopper 12A of the shaft-side screw sleeve 12 is in contact with the end face of the boss 8A, and FIG.
The large diameter head 12 </ b> B of the shaft-side screw sleeve 12 is in contact with the end surface of the boss-side screw sleeve 11. In the configuration in which the states shown in FIGS. 4 and 5 can be obtained, the rotation of the rotation shaft 3 can be performed when the rotation direction of the drive source 5 is switched. Therefore, the rotation direction of the drive source 5 is switched every predetermined number of rotations. In this case, the position of the stirring blade 4 can be automatically changed.

Since the present embodiment has the above configuration,
If the follower-side chain sprocket 8 is rotated in a direction opposite to the conventional direction while the rotation of the rotating shaft 3 is temporarily stopped, the inertial mass of the stirring spring 4 is used until the stirring blade 4 starts rotating again. By rotating the boss-side screw sleeve 11 interlocking with the driven-side chain sprocket 8, the shaft-side screw sleeve 12 can be moved in the axial direction in conjunction with the rotation. The shaft-side screw sleeve 12 is configured to contact the end surface of the boss 8A or the end surface of the boss-side screw sleeve 11 with either the stopper 12A or the large-diameter head 12B in accordance with the moving direction, so that the shaft-side screw sleeve 11 and the shaft-side screw sleeve 11 are in contact with each other. The side screw sleeve 12 frictionally engages. Thereby, the rotating shaft 3
Is to start rotating with the stirring blade 4 being moved in the axial direction and positioned at a different position from the conventional one. As a result, the stirring blade 4 touches and stirs the processed material which has not been touched so far, so that the area where the stirring cannot be performed in the axial direction of the rotating shaft 3 can be reduced and efficient stirring can be performed. .

In the above embodiment, the rotation of the follower side chain sprocket 8 is transmitted to the rotary shaft 3 by frictional engagement between the boss side screw sleeve 11 and the shaft side screw sleeve 12. However, for example, a power connecting / disconnecting means such as an electromagnetic clutch is disposed between the driven-side chain sprocket 8 and the rotating shaft 3 so that the rotating shaft 3 can be driven to rotate regardless of the amount of movement of the screw sleeve. It is also possible. In this case, since the rotating shaft 3 can be rotated at a stage where the amount of movement of the rotating shaft 3 in the axial direction is appropriately adjusted, the stirring region can be adjusted not quantitatively but variably.

[0028]

According to the present invention, the rotating shaft provided with the stirring blade can be moved in the axial direction, so that the position of the stirring blade can be changed in the axial direction of the rotating shaft. be able to. Accordingly, the stirring blade can uniformly contact the processing object in the axial direction by adding a simple configuration capable of moving in the axial direction, so that the area where the processing object cannot be stirred can be eliminated.

According to the fourth aspect of the present invention, the rotating shaft can be moved regardless of the rotation of the rotation transmitting means. The stirring blade can be positioned with respect to. This makes it possible to reduce the occurrence of the unstirable region.

According to the fifth aspect of the invention, the rotating shaft can be automatically moved in the axial direction according to the forward / reverse rotation of the drive source. This makes it possible to reduce the unstirrable region without requiring an operation to adjust the position of the stirring blade.

[Brief description of the drawings]

FIG. 1 is a schematic diagram for explaining a principle configuration regarding a stirring mechanism in a garbage processing apparatus according to an embodiment of the present invention.

FIG. 2 is a partial view for explaining another embodiment of the stirring mechanism shown in FIG. 1;

FIG. 3 is a schematic diagram for explaining another embodiment of the stirring mechanism shown in FIG. 1;

FIG. 4 is a partial view for explaining one embodiment of the stirring mechanism shown in FIG. 3;

FIG. 5 is a partial view for explaining another embodiment of the stirring mechanism shown in FIG. 3;

FIG. 6 is a schematic side view for explaining an outline of a conventional garbage processing apparatus.

FIG. 7 is a partial schematic view for explaining a problem of a stirring mechanism used in the garbage processing apparatus shown in FIG.

[Description of Signs] 1 Fermenter 3 Rotating shaft 4 Stirrer blade 5 Drive source 6 Sliding mechanism 6A Flywheel 6B2 Sliding member 6B3 Rack 6B4 Pinion 6B5 Drive motor 7 Drive chain sprocket 8 Driven chain sprocket 8A Boss 9 Chain 10 Hydraulic cylinder 11 Boss side screw sleeve 12 Shaft side screw sleeve 12A Stopper 12B Large diameter head

Claims (5)

[Claims] 1. A garbage disposal apparatus provided with a stirring means for stirring and mixing a processed material accommodated in a fermentation tank, wherein the stirring means comprises a plurality of stirring blades arranged along an axial direction of a rotating shaft; A garbage disposal apparatus, comprising: a drive source for rotating the rotating shaft; wherein the rotating shaft is configured to be movable in an axial direction. 2. The garbage disposal apparatus according to claim 1, wherein the rotating shaft is movable in the axial direction in conjunction with the rotation. 3. The garbage disposal apparatus according to claim 1, wherein the rotation axis is movable in a manner selected from either synchronous or asynchronous with a rotation cycle. 4. A structure in which the rotation shaft is partially provided with a rotation transmitting means that can be linked to the drive source, and the part is configured to be movable in an axial direction irrespective of rotation of the rotation transmitting means. The garbage disposal apparatus according to claim 3, wherein the garbage disposal apparatus is used. 5. The garbage disposal apparatus according to claim 3, wherein said rotating shaft is reciprocated in accordance with forward and reverse rotations of said driving source.