JP3240734B2 - Garbage disposal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal machine for treating plastic garbage mainly generated in a home kitchen, for example, containers and wraps used for packaging foods.

[0002]

2. Description of the Related Art Disposal treatment of garbage generated in a home kitchen, which is crushed and discharged into sewage, and incineration treatment machines for incineration and incineration have been put to practical use. However, an apparatus for treating plastic garbage at homes has not been put into practical use at present.

[0003] Hereinafter, will be explained incinerating processor conventionally used with reference to Figure 2. Reference numeral 1 denotes an insulated container that stores and processes garbage, 2 denotes a magnetron, and 3 denotes a waveguide. The garbage placed in the heat insulating container 1 is heated and dried by the electromagnetic waves generated by the magnetron 2, and further burns. 4
Is a secondary combustion chamber, 5 is a heater, 6 is a catalyst, and 7 is an igniter. The odor and combustible gas generated when the garbage contained in the heat insulating container 1 is dried or burned are oxidized and decomposed by the catalyst 6 or decomposed by heating in the secondary combustion chamber 4 and exhausted to the outside.
Reference numeral 8 denotes a blower fan which sends air taken in from the outside to the secondary combustion chamber 4. 9 is a door and 10 is a handle.

[0004]

The incineration-type treatment machine described above is only for incineration of garbage. In other words, the magnetron 2 does not effectively act as a heating source for plastic dust, and it is necessary to treat toxic gas generated when incinerating plastic, and it is difficult to realize this method for household appliances. Things.

However, in recent years, the amount of plastic waste such as food packaging containers and plastic wraps has been increasing in kitchens at home due to diversification of eating habits and changes in lifestyle. In reality, these plastic trash is bulky and has a headache in storing municipal trash by the day of collection.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a waste disposal apparatus having a simple structure capable of treating plastic waste generated in a kitchen or the like at home.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a container for charging plastic dust, a lid openably and closably provided on an upper portion of the container, and softening the plastic dust with warm air. A heater and a blower fan, a shielding plate provided at a boundary between the lid and the container, and a vertically movable press plate provided in the container for compressing softened plastic between the shielding plate and the shielding plate. Prepared on the press plate
Stretch by heating the compression process of plastic garbage by
This is a dust processing machine using a shape memory element .

[0008]

The present invention operates as follows. That is, the plastic dust is once heated to the softening temperature to be softened, and in this state, the press plate is driven by the shape memory element as a driving source.
Is compressed. By doing so, even when the temperature returns to normal temperature, the plastic dust becomes hardened in a compressed state, and can be taken out in a form in which the volume is significantly reduced. In addition, no toxic gas is generated.
You.

[0009]

FIG. 1 shows an embodiment of the present invention. Reference numeral 11 denotes a container into which plastic waste is put, and a lid 12 which can be opened and closed by a hinge is provided at an upper portion. Inside the lid 12,
A heater 13 and a blower fan 14 serving as a source of hot air are provided. A shielding plate 15 having ventilation holes is provided at a boundary between the lid 12 and the container 11. Reference numeral 16 denotes a vertically movable press plate provided at the lower portion of the container 11, which is vertically movable along the inner surface of the container 11. Reference numeral 20 denotes an exhaust port provided at an upper portion of the container 11. 29 is the lid 12 for the container 1
It is a metal fitting fixed to 1. The press plate 16 connects a bias coil spring 28 with a shape memory element 27 made of a coil-shaped shape memory alloy or the like combined in a concentric manner. The shape memory element 27 expands when a predetermined temperature is reached by heating the inside of the container, and acts to push up the press plate 16 upward. Press plate 1
Numeral 6 has a large number of small ventilation holes, and supplies heat inside the container to the shape memory element 27. Both ends of the bias coil spring 28 are connected to the press plate 16 and the bottom surface of the container 11.

The operation of the embodiment will be described below. When the user puts plastic dust into the container 11 and turns on a switch (not shown), the heater 13 and the blower fan 14 start operating. The blower fan 14 includes the lid 1
2 and the air inside the container 11 are circulated through the ventilation holes of the shielding plate 15 to supply the heat of the heater 13 to the plastic waste. By the way, most of plastic refuse generated from households is a relatively low-temperature thermoplastic material having a softening temperature of about 130 ° C. The softening temperature is lower than the temperature at which the plastic dust is decomposed and toxic gas is released. Therefore, in this embodiment, the temperature of the inside of the container 11 is controlled to about 130 ° C. by a control device (not shown).

At around room temperature, the bias coil spring 28
The contraction force overcomes the spring force of the shape memory element 27 and lowers the press plate 16 downward. In this state, when the plastic dust in the container 11 starts to be heated by the hot air from the heater 13 and the blower fan 14, the hot air passes through the ventilation holes of the press plate 16 or the gap between the press plate 16 and the side wall of the container 11. Then, the shape memory element 27 is also heated by heat conduction through the press plate 16.

The transformation set temperature of the shape memory element 27 is set to 1
If the temperature is set to about 30 ° C., about the same time when the plastic dust in the container 11 is heated and softened, the shape
Are caused to expand by heating and push up the press plate 16 upward. In other words, the extension force based on the shape memory of the shape memory element 27 at this temperature is designed to be greater than the tensile force of the bias coil spring 28, and
Is performed by overcoming the tensile force of the bias coil spring 28. Thus, the plastic dust in the container 11 is compressed and the volume is greatly reduced.

When the compression of the plastic dust ends, the control device operates to stop the energization of the heater 13. When the energization of the heater 13 is stopped, the container 11 is naturally cooled to around room temperature. Therefore, the shape memory element 2
7 is also cooled to around room temperature. When the temperature of the shape memory element 27 decreases to a predetermined value, the shape memory element 27 loses its extension force, and the compressive force by the bias coil spring 28 becomes stronger. Therefore, the press plate 16 is pulled down and returns to the initial state.

As described above, according to the present embodiment, a plastic dust compressor that does not generate toxic gas with a simpler configuration is realized.

[0015]

According to the present invention, plastic dust is thrown.
A container to be inserted and a lid provided at the top of the container so as to be openable and closable
And a heat for softening the plastic dust by warm air.
And a fan, and provided at a boundary between the lid and the container.
And a softened plastic provided in the container.
A press plate that can be moved up and down to perform compression processing with the shielding plate
Compression processing of plastic waste by the press plate
With a shape memory element that expands by heating
Thus, it is possible to provide a garbage disposal machine capable of compressing plastic garbage generated in a home kitchen by simple means and easily processing without generating toxic gas.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refuse treatment machine showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a conventional garbage incineration type processing machine.

[Explanation of symbols]

 Reference Signs List 11 container 12 lid 13 heater 14 blower fan 15 shielding plate 16 press plate 27 shape memory element

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-4-317908 (JP, A) JP-A-4-317909 (JP, A) JP-A-4-3344582 (JP, A) JP-A-5-317 23655 (JP, A) JP-A-4-12758 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 3/00

Claims (1)

(57) [Claims] 1. A container into which plastic dust is charged, a lid openably and closably provided on an upper portion of the container, a heater and a blower fan for softening the plastic dust with hot air, and the lid and the container. comprising a shielding plate provided in the boundary portion, and a vertically movable press plate for compression between the shield plate softened plastic provided in the container, the press
Expands plastic waste compression processing by heating
Garbage disposal machine with a shape memory element .