JPH11180502A - Refuse volume reduction device and paper cutting machine with refuse volume reduction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase a refuse processing efficiency by reducing the volume of refuse. SOLUTION: A paper cutting machine with a refuse volume reduction device comprises a refuse storing container 2 for storing refuse, a cutting mechanism part 3 installed on the upper part of the container 2, and a refuse volume reduction device 4 installed on the lower side of the cutting mechanism part 3 so that it faces the refuse storing container 2. The refuse volume reduction container 4 comprises a refuse volume reduction mechanism part 14 which diffuses input refuse, makes it fall down to the bottom part of the container, and crushes the refuse stacked at the bottom of the container by its own weight and a lift mechanism part 15 which supports and lifts the refuse volume reduction mechanism part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust reducing device and a paper cutting machine with the dust reducing device, which can reduce the volume of bulky dust and treat it.

[0002]

2. Description of the Related Art In the case of a cutting machine for cutting paper into small pieces,
A garbage container is placed under the garbage container, and the small cut paper is dropped onto the garbage container as it is.

[0003]

However, if the refuse is discarded as it is in the refuse storage container as described above, it becomes bulky. In the case of paper scraps that have been cut small by a cutting machine,
Since the paper waste is continuously dumped into the trash container from the paper waste discharge port of the cutting machine, the paper trash rises in one place in the trash storage container. In this case, since the cutting machine stops when it reaches the cutting machine, the work efficiency is poor.

[0004] Further, since only one portion of the paper dust rises, only this portion becomes dense, and the other portions become coarse. As a result, there is a problem that paper dust cannot be uniformly and densely filled in the entire trash container.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a dust reducing device and a paper cutting machine with a dust reducing device capable of reducing the volume of dust and storing the dust in a dust container. The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided a refuse reducing apparatus provided facing a refuse storage container for storing refuse, and reducing the volume of refuse introduced into the trash storage container. In the trash volume reduction device, a trash volume reduction mechanism that spreads trash such as paper waste and drops the trash on the bottom of the container by itself and crushes the trash on the bottom of the container by its own weight,
And a lifting mechanism for supporting the dust volume reducing mechanism and elevating the dust container from above to the bottom of the container.

With the above-described configuration, when dust such as small paper dust from the paper cutting machine is put into the dust container, the dust reduction mechanism disperses the dust. That is, in the case of trash such as paper waste, if the trash is discarded from one place, a rough portion and a dense portion are formed in the trash container, and the trash is dispersed by the trash reduction mechanism and then dropped to the bottom of the container. As a result, the garbage does not rise at only one place but spreads over the entire bottom of the container.

If the inside of the dust container is empty at the initial stage, the dust reduction mechanism is lowered to the bottom of the dust container. Garbage such as paper debris that has fallen on the garbage reduction mechanism is dispersed by the garbage reduction mechanism, sent to the lower part, and accumulated below the garbage reduction mechanism. Then, the dust volume reduction mechanism is pushed up with the accumulation.

The diffusion processing may be performed at the upper part of the dust container without lowering the dust volume reduction mechanism to the bottom of the dust container. In this case, when the dust has accumulated to some extent, the dust reduction mechanism is moved up and down by the lifting mechanism, and the dust accumulated by the weight of the dust reduction mechanism is crushed.

In the dust reducing apparatus according to a second aspect of the present invention, a plurality of the dust reducing mechanisms are provided in parallel, and the dusts are dropped by being taken in by being turned adjacent to each other by rotating in opposite directions. A rotating body that spreads dust by appropriately rotating in the forward or forward direction to drop the dust to the entire area of the container bottom, and supports the plurality of rotating bodies in a juxtaposed state and pushes the dust at the container bottom by its own weight downward. And a rotating body support frame having a pressing surface to be crushed.

According to the above configuration, when the dust is dropped from the left and right ends of the dust reduction mechanism, each rotating body is turned in the same direction. As a result, each rotating body is carried in a forward direction in the rotating direction, and falls to the container bottom from the gap between the rotating bodies and the left or right end. When the two rotating bodies adjacent to each other are reversely rotated in a direction in which the dust on the upper side is caught between the two rotating bodies, the dust drops from the portion to the container bottom. In this way, by rotating each rotating body appropriately in the reverse direction or the forward direction, the dust is diffused and dropped to the entire area of the container bottom.

When the dust volume reduction mechanism is lowered to the bottom of the container to carry out the diffusion process of the dust, the dust volume reduction mechanism winds the falling dust between the two rotating bodies and pushes the dust downward. It is deposited at the bottom of the garbage reduction mechanism. As a result, the dust volume reduction mechanism itself is pushed upward by riding on the accumulated dust. At this time, the refuse that has accumulated under the refuse reduction mechanism due to its own weight is compacted.

When the refuse reduction mechanism is positioned above the refuse storage container and the refuse is diffused, the refuse reduction mechanism is lowered by the elevating mechanism after the refuse is accumulated in the refuse storage container to some extent. Then, the dust is pressed by the pressing surface, and the dust accumulated by the dead weight of the dust reduction mechanism is crushed.

According to a third aspect of the present invention, there is provided a paper cutting machine provided with a dust volume reduction device, a dust container for storing dust, a cutting mechanism provided at an upper portion of the dust container, for cutting paper into small pieces, A dust reduction device according to the first or second aspect of the present invention is provided below the mechanism section so as to face the dust storage container.

According to the above configuration, when cutting a sheet,
Insert the paper into the cutting mechanism. As a result, the sheet is cut into small pieces and falls downward. This cut paper is
It is diffused by the trash volume reduction device attached to the lower side of the cutting mechanism and falls to the container bottom.

When the refuse volume reduction mechanism of the refuse volume reduction device is lowered to the bottom of the container to perform the garbage diffusion process, the refuse volume reduction mechanism includes the refuse volume reduction mechanism as in the second invention. Is wrapped between the two rotating bodies and pushed down,
The refuse is deposited at the lower part of the refuse reduction mechanism, and the refuse that is deposited on the lower part of the refuse reduction mechanism is compressed by its own weight.
The garbage reduction mechanism itself is lifted up on the garbage to be compacted.

In the case where the garbage reduction mechanism is positioned above the garbage storage container to perform the garbage diffusion process, after the garbage has accumulated to some extent in the garbage storage container, the garbage reduction mechanism is lowered to remove the garbage. Crush.

As a result, a partially dense part and a rough part are not generated in the dust container. As a result, dust can be uniformly and densely stored in the dust container.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In this embodiment, a paper cutting machine 1 with a dust volume reducing device will be described with reference to FIGS.

The paper cutting machine 1 with the dust volume reduction device is mainly composed of FIG.
As shown in FIG. 2, a dust container 2 for storing dust, a cutting mechanism 3 provided on the dust container 2 for cutting paper into small pieces, and a cutting mechanism section facing the dust container 2 3 and a trash volume reduction device 4 attached to the lower side.

The garbage container 2 is a rectangular container whose upper side is open. The paper dust cut by the cutting mechanism 3 is fed into the dust storage container 2 from the upper opening.

The cutting mechanism 3 has two roller-shaped blades 6 and 7 that mesh with each other. A paper input port 8 is provided at an upper portion of a portion where the two blade portions 6 and 7 mesh with each other, and a paper output port 9 is provided at a lower portion. The paper inserted from the paper input port 8 is cut into small pieces by the blade portions 6 and 7 meshing with each other and falls downward from the paper output port 9. In the cutting mechanism 3, the blades 6,
7 and a control device (not shown) for controlling the drive motor and the dust reduction device 4.

A lower portion of the cutting mechanism 3 is provided with a rectangular cylindrical outer case 11. This outer case 11
The size of the dust container 2 is slightly larger than that of the dust container 2 so that the dust container 2 can be accommodated therein. A standby space 12 is provided between the lower end of the cutting mechanism 3 and the upper end of the dust container 2 for holding the dust container 4 in a state where the dust container 2 is stored in the outer case 11. The standby space 12 is a space in which the dust reduction device 4 is positioned to be in a standby state when the cutting mechanism 3 is not used. In the standby state, the dust reduction device 4 is raised to the upper limit and supported so as not to contact the upper end of the dust storage container 2 so as not to obstruct the dust storage container 2 or the like. The outer case 11 is provided with an access port (not shown) for inserting and removing the trash container 2.

The dust volume reduction device 4 is for reducing the volume of dust put in the dust container 2. The dust volume reduction device 4 mainly includes a dust volume reduction mechanism section 14 and a lifting mechanism section 15.

The dust reduction mechanism 14 diffuses the dust discharged from the paper discharge port 9 of the cutting mechanism 3 and drops the dust to the container bottom 2A. This is for crushing the trash that has fallen to 2A by its own weight. The dust volume reduction mechanism 14 mainly includes a rotating body 16 and a rotating body support frame 17, as shown in FIGS.

The rotating body 16 is composed of a first rotating body 19, a second rotating body 20, and a rotating body driving unit 21.

The first rotating member 19 includes a first driving roller 19.
A, a first driven roller 19B, and a transport belt 19C stretched around these. The first drive roller 19A is a roller that is rotationally driven by the rotating body drive unit 21, and the rotation of the first drive roller 19A causes the belt-shaped transport belt 19C stretched between the first driven roller 19B to rotate. It is supposed to. The first drive roller 19A is rotatably supported at a position fixed to the rotating body support frame 17. A gear 19D is provided at an end of the first drive roller 19A, and a drive gear 24 of the rotating body drive unit 21 is provided.
And are driven. The first driven roller 19B is connected to the rotating body support frame 17 via the adjustment mechanism 22.
It is supported rotatably. The adjusting mechanism 22 supports the first driven roller 19B in a direction away from the first driving roller 19A, and can adjust the supporting position with a screw. The first driven roller 19 is controlled by the adjusting mechanism 22.
By adjusting the position of B, the tension of the transport belt 19C can be adjusted. Transport belt 19C
Is constituted by a toothed belt having tooth portions 19E in the width direction, as shown in FIG. This ensures that the dust that has fallen onto the transport belt 19C is transported by the teeth 19E.

As shown in FIGS. 2 and 3, the second rotating body portion 20 is composed of a second driving roller 20A, a second driven roller 20B, and a transport belt 20C stretched over these. ing. These second drive rollers 20A,
The driven roller 20B and the transport belt 20C are configured similarly to the first drive roller 19A, the first driven roller 19B, and the transport belt 19C. The distance between the second driving roller 20A and the second driven roller 20B is set wider than the distance between the first driving roller 19A and the first driven roller 19B. This is because the paper discharge port 9 of the cutting mechanism 3 is provided at a position biased to one side (left side in the figure). The second driven roller 20B is supported by the adjusting mechanism 22.

The rotating body driving section 21 is a drive source for driving the first rotating body section 19 and the second rotating body section 20. The rotating body drive unit 21 includes a drive motor 23 and a drive gear 24 connected to the drive motor 23 and transmitting power to the outside. The drive gear 24 can rotate in both the forward and reverse directions as the drive motor 23 rotates. The driving gear 24 is composed of a gear 19 </ b> D of the first driving roller 19 </ b> A of the first rotating body 19 and a second rotating body 2.
The transport belts 19C and 20C are rotated in the same direction by meshing with the gear 20D of the second drive roller 20A. Further, they rotate in either the forward direction or the reverse direction according to the rotation direction of the drive gear 24. The drive motor 23 is connected to a control device in the cutting mechanism 3 via a cord (not shown) incorporated in a support wire 29 described later, and the control device controls the rotation in the forward and reverse directions. It has become.

The rotating body support frame 17 includes four side plates 17A,
17B, 17C and 17D. Rollers 19A, 19B, 20 are attached to long side plates 17A, 17B.
A and 20B are rotatably mounted, and a rotating body drive unit 21 is mounted. Short side plate 17
In C and 17D, support plates 25 are provided at four places, and the distal ends of support wires 29 of the elevating mechanism 15 described later are fixed respectively.

The rotating body support frame 17 is made up of four side plates, and has upper and lower openings. The opened upper and lower surfaces are entirely covered by the first body of the rotating body 16.
It is covered with a rotating body 19 and a second rotating body 20. The upper surfaces of the first rotating body portion 19 and the second rotating body portion 20
A dust receiving surface 26 receives paper dust from the cutting mechanism 3. On the dust receiving surface 26, each of the rotating bodies 19, 2
0 is selectively rotated in the normal and reverse directions, so that the cutting mechanism 3
The paper dust received from is spread. That is,
The received paper dust is transferred between the first rotating body portion 19 and the second rotating body portion 20, the first rotating body portion 19 side end (the left end in FIG. 1), and the second rotating body portion 20 side end. (The right end in FIG. 1) is appropriately dispersed and dropped to the container bottom 2A from three places.

The first rotating body 19 and the second rotating body 2
The lower surface of the lower surface 0 is a pressing surface 27 that covers the dust falling on the container bottom 2A and crushes it by its own weight. The rotating body support frame 17 has some weight due to itself and the rotating body 16 attached thereto. This weight is set to such a weight that the pressing surface 27 can cover the dust stored in the container bottom 2A and crush it to a certain volume. Specifically, it is set appropriately according to the type of dust.

The elevating mechanism 15 supports the dust volume reducing mechanism 14 and raises and lowers the dust container 2 from above to the container bottom 2A. The lifting mechanism 15 mainly includes a support wire 29 and a winding mechanism 30. Four support wires 29 are provided, and the tips are fixed to the four support plates 25, respectively. The base end side of each support wire 29 is wound around the winding mechanism 30 via each guide roller 31. Winding mechanism 30
Comprises a drive motor 31 and a take-up pulley 32 attached to the drive motor 31 to wind up the support wire 29. Two winding mechanisms 30 are provided, and the two supporting wires 29 are wound two by two in two systems. In the support wire 29, the dust reduction mechanism 1
The power cords of the four rotating body drive units 21 are integrally incorporated. With the support wire 29 wound up by the winding mechanism 30 of the lifting mechanism 15 to the limit, the dust reduction mechanism 14 is located above the upper end of the dust storage container 2 and the dust storage container 2 It does not become an obstacle when taking out.

The rotating body driving section 2 of the dust reduction mechanism section 14
The winding mechanism 30 of the lifting mechanism 15 is connected to a control device in the cutting mechanism 3 and is controlled in conjunction with the cutting mechanism 3. Specifically, the cutting mechanism 3 operates only while the main power is turned on and the blades 6 and 7 are rotating. That is, paper waste can fall from the paper discharge port 9 only while the blade portions 6 and 7 are rotating,
While the main power of the cutting mechanism unit 3 is turned on, the rotating body driving unit 2
1 and the winding mechanism 30 are operated.

The rotating body driving section 21 is set to the operation mode while the main power of the cutting mechanism section 3 is turned on. In this operation mode, the rotating body drive unit 21 rotates reversely at regular intervals so that paper dust is dispersed and dropped from the three positions. Further, the rotating body drive unit 21 is operated for a predetermined time after the main power supply of the cutting mechanism unit 3 is turned off, and stops after completely removing the paper debris dropped on the dust receiving surface 26. This fixed time is set to the time until the paper debris at one end of the second rotating body portion 20 is carried to the other end and falls.

The winding mechanism 30 normally includes the support wire 2
The cutting mode is set to a standby mode in which all of the rolls 9 are wound, and when the main power of the cutting mechanism unit 3 is turned on, the operation mode and the dust volume reduction mode are set. In the operation mode, the support wire 29 is slightly unwound from the winding mechanism 30, and the dust volume reducing mechanism 14 descends to the upper position (the position shown in FIGS. 2 and 3) of the dust container 2 and the dust receiving surface. The paper waste received at 26 can be diffused. Then
Set to trash volume reduction mode. In the dust volume reduction mode, the operation of completely unwinding the support wire 29 from the winding mechanism 30 and rewinding the support wire 29 is repeated at regular intervals. As a result, the dust reduction mechanism 14 is lowered from the upper position of the dust container 2 to the container bottom 2A and returned to the original position again, and the paper debris stored in the container bottom 2A is pressed by the dust reduction mechanism 14. The surface 27 is compressed. The time interval at which the feed-out operation of the support wire 29 is performed is set to a fixed time as the total time during which the main power of the cutting mechanism unit 3 is turned on. As the time, for example, due to continuous use of the cutting mechanism 3,
Set the time required to accumulate about one-fourth.

In the dust volume reduction mode, the operation mode of the dust volume reduction mechanism 14 is stopped, and the conveyor belts 19C,
The paper waste is pressed while the 20C is stopped. Note that the operation mode of the dust reduction mechanism unit 14 may not be stopped.
In this case, since the transport belts 19C and 20C rotate while pressing the paper waste, the paper waste is crushed while being stirred.

[Operation] The paper cutting machine 1 with the dust volume reducing device configured as described above operates as follows.

When the main power of the cutting mechanism 3 is turned on, the blades 6 and 7 start rotating, and the winding mechanism 30 of the elevating mechanism 15 is set in the operation mode as the dust reduction mechanism 1.
Lower 4 slightly. Next, the winding mechanism 30 is set to the dust volume reduction mode, and the rotating body drive 21
Is set to the operation mode.

In this state, the used paper is fed into the paper input port 8.
The paper is finely chopped by the blades 6 and 7 into paper dust, and is discharged from the paper discharge port 9 into the dust reduction mechanism 1.
Fall to 4. The dust reduction mechanism 14 receives paper dust on the dust receiving surface 26. The paper dust dropped from the paper discharge port 9 mainly falls near the gap between the first rotating body portion 19 and the second rotating body portion 20. First rotating body portion 19 and second rotating body portion 20
Is periodically rotated in the forward and reverse directions in the operation mode, so that the paper debris dropped near the gap between the first rotating body portion 19 and the second rotating body portion 20 is removed by the first rotating body portion 19 and the second rotating body portion. It is dispersed to the gap between the two rotating body portions 20, the end portion on the first rotating body portion 19 side, and the right end portion of the second rotating body portion 20, and drops to the container bottom 2A. Thereby, the paper waste stored in the garbage storage container 2 is diffused.

When a certain amount of paper dust is accumulated in the dust container 2, the winding mechanism 30 is operated in the dust reduction mode, and the support wire 29 is paid out. As a result, the dust volume reduction mechanism unit 14 descends, and the pressing surface 27 of the dust volume reduction mechanism unit 14 covers the paper waste on the container bottom 2A and is pressed and crushed by its own weight. Next, the support wire 29 is wound up by the winding mechanism 30, and the dust volume reducing mechanism 14 is wound up to the original position.

When the cutting of the sheet is completed, the main power of the cutting mechanism 3 is turned off. As a result, the dust volume reduction mechanism unit 14 stops after a certain period of time has elapsed, and the elevating mechanism unit 15 winds up the dust volume reduction mechanism unit 14 to the upper limit and enters a standby state.

When the paper waste in the garbage container 2 becomes full, the garbage container 2 is taken out of the entrance of the outer case 11 and the garbage therein is discarded.

[Effects] As described above, the paper dust from the cutting mechanism 3 is dispersed by the dust reduction mechanism 14 and then dropped to the container bottom 2A. Is lowered to crush the dust, so that the dust can be stored in the dust container 2 densely.

As a result, the volume of the dust stored in the dust container 2 can be greatly reduced, and the efficiency of the subsequent dust treatment can be greatly improved.

[Modifications] (1) In the above embodiment, as the operation mode of the winding mechanism 30 of the elevating mechanism 15, the dust diffusion process is performed with the dust volume reducing mechanism 14 slightly lowered. However, when the inside of the dust container 2 is empty or the amount of dust is small, the dust reduction mechanism 14 may be lowered to the container bottom 2A to perform dust diffusion processing. In this case, the dust volume reduction mechanism section 14 wraps the falling dust between the first rotating body section 19 and the second rotating body section 20 and pushes it downward. To be deposited. As a result, the dust volume reduction mechanism 14 itself is pushed upward on the accumulated dust. At this time, the dust accumulated on the lower part of the dust reducing mechanism 14 by its own weight is compacted.

(2) In the above embodiment, a belt-shaped belt is used as the rotating body 16, but a plurality of rollers may be arranged in parallel like a roller conveyor. In this case, each roller is individually driven and rotated in an appropriate direction to disperse dust or to be crushed by being wound between rollers. In this case, a groove may be provided on the surface of each roller like a gear.

(3) Although a toothed belt is used as the transport belt 19C and the like, other belts having irregularities may be used. It may have no irregularities. Any material can be used as long as it can transport garbage.

(4) In the above embodiment, the transport belt 19C of the first rotating body 19 and the transport belt 20C of the second rotating body 20 are rotated in the same direction by the driving gear 24 and the gears 19D, 20D. However, the conveyance belt 19C and the conveyance belt 20C may be set to rotate in the reverse direction. In this case, the drive gear 24 is not provided, and the gear 19
The diameters of D and 20D are increased so as to mesh with each other, and the drive motor 23 is directly connected to one of the gears 19D and 20D.

(5) In the above embodiment, the weights of the rotating body 16 and the rotating body support frame 17 set for crushing the dust stored in the container bottom 2A differ depending on the type of the dust. Is appropriately set in accordance with.
In this case, an adjustment weight may be attached to the rotating body support frame 17.

(6) In the above-described embodiment, in the dust reduction mode, the feeding amount of the support wire 29 from the winding mechanism 30 is adjusted so that the dust reduction mechanism 14 reaches the container bottom 2 A of the dust container 2. However, it may be adjusted by the tension of the support wire 29. That is, since the tension of the support wire 29 almost disappears when the dust volume reduction mechanism unit 14 covers the paper waste in the dust container 2, the tension is measured, and when the tension almost disappears, the support wire 29 is fed out. You may stop it. As a method of detecting the tension of the support wire 29 in this case, for example, a pressure sensor is provided at a portion where the winding mechanism 30 is attached to the rotating body support frame 17, and a change in the tension of the support wire 29 is detected by the winding mechanism. It is measured as a change in the pressure of the support part of the part 30 on the rotating body support frame 17.

(7) In the above-described embodiment, the rotating body 16 is constituted by using the two rotating bodies of the first rotating body 19 and the second rotating body 20. However, three or more rotating bodies are provided. The rotating body 16 may be configured. In this case, the rotating direction of the three or more rotating body portions is appropriately controlled, and the dust is spread.

[0054]

As described in detail above, according to the present invention,
The following effects are obtained.

The dust is diffused by the dust reduction mechanism and dropped to the bottom of the container, and the dust accumulated on the bottom of the container is crushed by the weight of the dust reduction mechanism. The volume can be greatly reduced,
Subsequent garbage disposal can be made much more efficient.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a paper cutting machine with a dust volume reducing device according to the present invention.

FIG. 2 is an enlarged view of a main part showing a waste volume reducing device according to the present invention.

FIG. 3 is a side view of the refuse reduction device shown in FIG.

FIG. 4 is an enlarged perspective view of a main part showing a transport belt of a rotating body.

[Explanation of symbols]

1: paper cutting machine with trash volume reduction device, 2: trash storage container,
3: cutting mechanism, 4, 14: dust reduction device, 6, 7: blade, 8: paper inlet, 9: paper outlet, 11: outer case,
15: lifting mechanism, 16: rotating body, 17: rotating body support frame, 19: first rotating body, 20: second rotating body, 21:
Rotating body drive unit, 22: adjustment mechanism, 23: drive motor, 2
4: drive gear, 25: support plate, 26: dust receiving surface, 2
7: pressing surface, 28: winding mechanism, 29: support wire,
30: take-up mechanism, 31: drive motor, 32: take-up pulley.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI B65F 1/14 B09B 3/00 301B

Claims (3)

[Claims] 1. A trash volume reduction device provided to face a trash storage container for storing trash and reducing the volume of trash put into the trash storage container. And let it fall
A dust reduction mechanism for lifting and lowering the dust at the bottom of the container by its own weight, and a lifting mechanism for supporting the dust reduction mechanism and raising and lowering the dust from the top of the dust container to the bottom of the container. A garbage reduction device characterized by comprising: 2. The garbage reduction device according to claim 1, wherein a plurality of the garbage reduction mechanisms are provided in parallel, and the garbage put in by being turned adjacent to each other in opposite directions is taken in and dropped. And a rotating body for appropriately rotating in the reverse or forward direction to diffuse dust and drop the entire area of the container bottom, and supporting the plurality of rotating bodies in a juxtaposed state, and lowering the dust on the container bottom by its own weight. And a rotating body supporting frame having a pressing surface that is crushed by the rotary member. 3. A garbage storage container for storing garbage, a cutting mechanism provided at an upper portion of the garbage storage container, for cutting paper into small pieces, and a lower side of the cutting mechanism, which faces the garbage storage container. A paper cutting machine with a dust volume reduction device, comprising: the dust volume reduction device according to claim 1 attached thereto.