JP3282529B2 - Waste plastic volume reduction machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste plastic volume reducing machine for heating and softening waste plastic materials such as styrofoam and other plastic bottles generated in homes, offices, stores and the like to reduce the volume.

[0002]

2. Description of the Related Art Conventionally, a large amount of waste has been discharged from homes, business establishments, and stores, resulting in a shortage of processing facility capacity such as incineration and landfill, and an increase in processing costs including collection and transportation. Is in a hurry. As a countermeasure, reducing the amount of waste is a fundamental solution, but the use of recycled resources is extremely effective.

[0003] Above all, waste plastic materials are attracting attention as recycling targets because they are petroleum, a valuable energy resource, they do not rot even when they are landfilled, and they are bulky. Among them, Styrofoam is particularly frequently used as a distribution container because of its light weight, cushioning property, low cost, etc., and no alternative material has been found so far. It is rare.

[0004] However, when the styrofoam and the like are collected and collected in one place for recycling, there is a problem that the bulky bulk increases the transportation cost, which increases the overall recycling cost. For this reason, a volume reduction method and a volume reduction apparatus which are installed in a place where waste plastic material is generated, such as a home, a business place, a store, and the like, to reduce the volume thereof, have been proposed. However, the method of reducing the volume of styrofoam or the like at normal temperature requires a high-pressure press device, which results in a large facility, and the facility cannot be downsized.

Therefore, as an improvement of this volume reduction processing apparatus, the following technique (Japanese Patent Laid-Open No. Hei 5-27411) has been proposed.
No. 4) has been proposed. In this technique, styrene foam or the like is softened by heating, and the volume of the styrene foam is reduced under pressure using air pressure.

[0006]

In the above-mentioned waste plastic volume reducing apparatus, since the power supply is turned on / off by a normal tumbler switch, anyone can turn on the power supply, such as child mischief. It is also conceivable that the power is easily turned on and off. In addition, since the volume reduction processing is automatic operation after the start key input on the main body, there is a case where an operator is not nearby, and even after the processing is completed, the power is easily left in the “ON” state. In addition, since the power supply is installed outdoors, it is easy to forget to turn off the power. After the volume reduction processing is completed, there is a problem that the apparatus is left in a standby (energized) state until the next processing is performed.

Therefore, the present invention solves the above-mentioned conventional problems, and the power supply is turned on / off only by a specific administrator.
The power can be turned off after the volume reduction process is completed, and the power can be prevented from being forgotten to be turned off without being left in the standby (energized) state. It is an object of the present invention to provide a waste plastic volume reducing machine that is safe and convenient to handle only during a certain period of time.

[0008]

In order to achieve the above object, the present invention relates to a waste plastic volume reducing machine, wherein a power-on means by a key switch and a control means self-interrupt the power after the volume reducing operation is completed . In addition, volume reduction mode
When the start switch is input without selecting, the opening / closing lid is automatically
In this configuration, the power is controlled so as to be locked and the power supply is automatically shut off .

According to the present invention, since the power is turned on by a key switch with a key, by controlling this key, the power of the volume reducing machine can be turned on / off only by a specific administrator, and can be used to mischief children. Power is not easily turned on and off. In addition, since the power key switch is an automatic reset type and the power supply is latched from the control circuit, the power supply of the volume reducer body can be shut off by turning off the latch signal from the control circuit after the volume reduction processing is completed. There is no forgetting to turn off the power, and after the volume reduction processing is completed, the apparatus is not left in a standby (energized) state until the next processing is performed. Furthermore, waste
In the waste plastic volume reducer, the control means is a volume reduction process.
Open and close when the start switch is input without selecting the mode
Control so that the lid automatically locks and the power supply shuts off.
Power can be turned on or off by unspecified persons
You can't open the lid.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a processing container having an opening / closing lid and containing a waste plastic material therein, and a waste plastic material communicated with the processing container and circulating hot air. A hot air circulation path for softening the waste plastic material, a pressurizing unit provided at the bottom side of the processing container to pressurize and soften the softened waste plastic material, a power-on means by a key switch, and a volume reduction processing operation end. Control means for self-interrupting the power supply later , wherein the control means sets a volume reduction processing mode.
When the start switch is input without selecting, the opening / closing lid is automatically
This is a waste plastic volume reducer that locks and controls the power supply to shut itself off.By controlling the power-on key by a specific administrator, there is no erroneous power-on of the volume reducer.
There is an effect that the power is not forgotten to be turned off after the volume reduction processing is completed, and the apparatus is not left in a standby (energized) state until the next processing is performed after the volume reduction processing is completed. In addition, unspecified
Not be able to turn on the power or open the open / close lid
Act on.

[0011]

[0012]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 1 is a front sectional view of a waste plastic volume reducer according to a first embodiment of the present invention, FIG. 2 is an external perspective view of the waste plastic volume reducer, and FIG. 3 is a configuration diagram of a power supply circuit of FIG.

In FIG. 1, reference numeral 5 denotes an exterior, inside which a processing tank 6 is provided via a heat insulating tank 7. This processing tank 6 is for storing and processing waste plastic material.
The peripheral wall has a number of ventilation holes. The inner bottom portion of the processing tank 6 is provided with a pressurizing portion composed of a pressurizing bag 9 and a movable plate 8 disposed thereon, and the inner cover 3 and the upper cover 1 can be opened and closed at the upper portion. Provided. An inner lid handle 10 is provided on the inner lid 3, and the upper lid 1 is locked by an upper lid lock solenoid 2 at a lock mechanism at the upper part of the main body.

A hot air circulation path 4 on the main body side is connected to the processing tank 6 through a hot air outlet 11, and a circulation fan 21 and a main heater 15 for heating gas to about 150 ° C. are connected to the hot air circulation path 4. And a thermistor 13 for detecting temperature.

A discharge path 17 is branched and connected to the hot air circulation path 4. The discharge path 17 is associated with a catalyst heater 20, a catalyst deodorizing section 18 having a thermocouple 16, and an exhaust fan 19.

Further, a compressor 24 is provided in the main body, and compressed air is supplied to the pressure bag 9 of the pressure section through a joint 25.
And compressor 2
The four parts are combined with an exhaust solenoid valve 23. Further, the main body is provided with an operation panel section 12 and a control box 22 having a control circuit for controlling a power supply and a lock mechanism.

As shown in FIG. 2, a reed switch SW6 is provided on the operation panel section 12, and a power key switch SW1, a start switch SW5 and a power OFF switch SW4 can be externally operated on the front face of the main body. Is provided.

The circuit configuration for controlling the power supply and the lock mechanism is as shown in FIG. That is, the power supply AC2
00V is earth leakage breaker E. L. The key switch SW1 is connected to the key switch SW1, the power supply latching relay SW2, and the magnet switch SW3 via B. The key switch SW1 is short-circuited by the power supply latching relay SW2, and the secondary side is connected via the transformer T. Connected to the control circuit CS to supply power. The magnet switch SW3 is connected to the main heater 15, the circulation fan 2
1. Functions as a power supply for the exhaust electromagnetic valve 23, the compressor 24, and the like.

The control circuit CS controls the transistor Q1 to open and close the power supply latching relay SW2 via the power supply "off" switch SW4-1.
The transistor Q2 is controlled to open and close the magnet switch SW3 via the phototriac PT, the triac TRC, and the power switch "OFF" SW4-2. Further, the display substrate is controlled, and the display substrate displays the operation of the start switch SW5 and the reed switch SW6.

The operation of the waste plastic volume reducing machine having the above construction will be described below with reference to FIGS. 1 to 3 by taking the case where the waste plastic material is styrene foam as an example.

In FIG. 2, the power key switch SW1 shown in FIG. 3 is inserted by inserting the power key into the keyhole of the power key switch SW1 of the main body and turning the power key clockwise.
Is closed, power is supplied to the transformer T, and the power supply of the secondary circuit rises. When the secondary power supply rises, a signal for secondary power supply latch is output to the transistor Q1 by the control circuit CS in the control box 22, and the transistor Q1 is turned off.
By performing N, the power supply latch relay SW2 is closed, and the secondary power supply is latched. At the same time, the transistor Q
2, the power supply latch signal for load is output, and the transistor Q2 is turned ON to turn on the triac TRC.
Then, the magnet switch SW3 is closed and the main heater 1
5. The power of the catalyst heater 20, the circulation fan 21, and other primary loads is latched.

After the power supply is latched, an unlock signal is output from the control circuit CS to the upper lid locking solenoid 2 so that the upper lid 1 of the exterior of the main body is unlocked and can be opened and closed.
It becomes a processing standby state. After the power supply has started up normally,
The power key is pulled out from the key switch SW1.

The operator opens the upper lid 1 and the inner lid 3 and puts styrofoam into the processing tank 6.

Next, the inner cover 3 is closed, the processing mode is set to PS (Styrofoam) on the operation panel section 12, and the upper cover 1 is closed. At this time, whether or not the upper lid 1 is securely closed is detected by the reed switch SW6. If the reed switch SW6 is not closed, the lid is not locked and processing cannot be performed. When the top cover 1 is securely closed, by pressing the start switch SW5 on the front of the main body, a lock signal is output from the control circuit CS to the top cover lock solenoid, and the top cover 1 is locked. Therefore, the upper lid 1 cannot be opened.

When the upper lid 1 is locked, the main heater 15 of the heating section 14 and the circulation fan 2 connected to the processing tank 6 are connected.
1 to start blowing air into the processing tank 6 to start circulation of the gas in the hot air circulation path 4 and branch a part of the gas in the hot air circulation path 4 to the catalyst deodorizing unit 18 to reduce the volume. The gas generated from the waste plastic material is oxidized and deodorized by a catalyst and exhausted.

The temperature of the gas circulating in the hot-air circulation path 4 is detected by a thermistor 13 attached to the hot-air outlet 11 of the heating section 14 connected to the processing tank 6, and this detection signal is transmitted to the control circuit CS. It is controlled by the control circuit CS so as to keep the temperature at a predetermined value.

When the styrene foam in the processing tank 6 is heated to a high temperature, the butane gas which foams the styrene is released and softened and reduced. When the heating for a predetermined time is completed, the power of the main heater 15 for heating is turned off and the cooling mode is entered. Thereafter, the control circuit CS closes the exhaust electromagnetic valve 23 and enters a compression mode in which air is sent to the pressurized bag 9 by the compressor 24.

As the air is fed from the compressor 24 into the pressure bag 9, the pressure bag 9 expands, and the movable plate 8 rises in the direction of the middle lid 3 of the processing tank 6 to compress the styrene foam in the processing tank 6. Reduce the volume. The pressure at the time of compressing and reducing the volume is controlled to a set pressure by a pressure sensor (not shown) in the control box 22. When the pressure reaches the set pressure, the compressor 24 is stopped, the exhaust electromagnetic valve 23 is opened, and the air in the pressurized bag 9 is discharged to the outside.
The movable plate 8 descends to the original position and stops.

In the cooling mode, the temperature in the processing tank 6 is about 60
The process is continued until the temperature reaches about ° C, and then the process ends. At the end of the processing, the end of the processing is notified by a buzzer in the operation panel section 12, the signal for latching the load power supply to the transistor Q2 is turned off from the control circuit CS, and in conjunction with this, the magnet switch SW3 is opened and the primary side load is opened. Is turned off. At the same time, the secondary power latch signal to the transistor Q1 is turned off, and in conjunction with this, the power latch relay SW2 is opened and the secondary power is turned off. You. When the volume reduction process is forcibly stopped in the middle, the power can be turned off by pressing the power-off switches SW4-1 and SW4-2. Note that the power supply "off" switches SW4-1 and SW4-2
Is one switch as a switch, and two circuits b
It is a contact (NC) type.

After the power is shut off, the power is shut off while the upper lid 1 is locked by the upper lid locking solenoid 2, so that an unspecified person cannot open the lid or mischief without permission. . In addition, self-interruption of the power supply can prevent the power supply from being forgotten to be turned off, and can prevent a waste plastic volume reduction machine having high safety and reliability without being left in an energized state. .

[0032]

As is apparent from the above description, the waste plastic volume reducing machine of the present invention is turned on by the power key and self-latching the power circuit section.
After the automatic operation is completed, the power supply can be shut off by itself, and after the volume reduction process is completed, it will not be left in the energized state.
This has the effect of preventing forgetting to turn off the power.

Further, by locking the opening / closing lid from the moment the volume reduction processing start switch is input, the processing container which becomes high in temperature during the volume reduction processing is erroneously touched by a hand, thereby preventing an accident such as a burn. Even after the volume reduction process is completed, the power is shut off while the open / close lid is locked, so that only the specific operator who manages the power key can turn on / off the power and open / close the open / close lid. It is possible to prevent mischief when left unattended.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a waste plastic volume reducer according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of the waste plastic volume reducing machine.

FIG. 3 is a configuration diagram of a power supply circuit of the waste plastic volume reducing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper lid 2 Upper lid lock solenoid 3 Middle lid 4 Hot air circulation path 5 Exterior 6 Processing tank 7 Heat insulation tank 8 Movable plate 9 Pressure bag 10 Middle lid handle 11 Hot air outlet 12 Operation panel unit 13 Thermistor 14 Heating unit 15 Main heater 16 Thermoelectric Pair 17 Discharge path 18 Catalyst deodorizing section 19 Exhaust fan 20 Catalyst heater 21 Circulation fan 22 Control box 23 Exhaust solenoid valve 24 Compressor 25 Joint SW1 Key switch SW2 Power latch relay SW3 Magnet switch SW5 Start switch SW6 Lead switch SW4-1 Power supply "OFF" switch SW4-2 Power "OFF" switch Q1 Transistor Q2 Transistor T Transformer PT Phototriac TRC Triac CS Control circuit

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B29B 17/00-17/02 C08J 11/00-11/28 B29B 3/00-5/00

Claims (1)

(57) [Claims] 1. A processing container having an opening / closing lid and accommodating a waste plastic material therein, a hot air circulation passage communicating with the processing container and circulating hot air to soften the waste plastic material, comprising a waste plastic material softened provided at the bottom side pressure portion of volume reduction pressurizing includes a power-on means by the key switch, a control means for self-power down after volume reduction processing operation ends, the control The means is volume reduction
When the start switch is input without selecting the
Control to automatically shut off the power by automatically locking the lid
Waste plastic volume reduction machine characterized by doing .