JP4252437B2 - Garbage processing machine - Google Patents

Description

  The present invention relates to a garbage processing machine for reducing the amount of garbage generated from factories, restaurants, hotels, general households, and the like.

  Garbage is generally rich in moisture. For this reason, various problems such as making it difficult to take to the garbage collection site, dirty storage containers and places, high temperatures, etc., causing decay in a short period of time and causing bad odors. Have For these reasons, in recent years, in order to remove moisture contained in garbage and to reduce weight and volume, a method of irradiating with microwaves, high-temperature air obtained by heat exchange with the combustion heat of the burner is used. Garbage treatment machines based on various methods such as spraying and heating to a high temperature have been developed and are becoming increasingly popular.

  In such a garbage processing machine, a stirring means is provided in order to promote efficient reduction of the garbage, but when the reduced garbage is discharged from the processing container, it is provided in the processing container. In order to increase the discharge efficiency from the discharge port, it is common to use the rotation of the stirring means. Further, the discharge port is generally provided with a discharge port lid that is opened and closed manually or by a drive motor, and a lid open / close detection switch that detects whether the discharge port cover is fully open or fully closed. In other words, it is provided to control the lid opening / closing detection switch so that it does not enter the next operation unless the discharge lid is fully opened or closed. It can be said that it is an important part for controlling the motor stoppage.

  As a conventional lid opening / closing detection switch, an a-contact switch whose contact is open at the time of non-detection is generally used. FIG. 6 is a control block diagram of a conventional garbage disposal machine. From the figure, an open detection switch 50 for detecting a limit for opening the discharge port lid and a close detection switch 51 for detecting a limit for closing the discharge port lid are shown. And is connected to an input terminal of the microcomputer 53 of the control unit 52. Further, a drive motor 56 is connected to an output terminal of the microcomputer 53 via a relay 54 and a motor drive circuit 55.

  In the control of the drive motor 56 by the lid opening / closing detection switch in the above control block diagram, the contact is closed when the lid opening / closing detection switch detects the full opening or closing of the discharge port lid, and a signal from the lid opening / closing detection switch is sent to the control unit 52. To the microcomputer 53. Then, after performing predetermined processing in the microcomputer 53, a signal is output from the microcomputer 53 to the motor drive circuit 55 via the relay 54, so that the drive motor 56 is stopped.

JP 2002-59116 A

  However, when the a-contact switch is used as a lid open / close detection switch in a conventional garbage disposal machine, the drive motor must be controlled via a microcomputer because of the circuit configuration. In this case, since the drive motor cannot be stopped, there is a problem that the discharge port lid and the drive motor are damaged.

  In addition to the lid opening / closing detection switch for detecting the opening / closing of the discharge port lid, the driving motor is stopped regardless of the output of the microcomputer as a method for reliably stopping the driving motor even when the microcomputer runs away as described above. However, there is a problem in that the number of parts increases and the manufacturing cost increases, and at the same time, the structure near the discharge port becomes complicated due to the installation of the switch.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a garbage disposal machine that can detect the opening / closing of the discharge port lid and control the drive motor reliably even if the microcomputer runs away. .

The invention of claim 1 is a processing container for reducing garbage, a discharge port for discharging the garbage reduced in the processing container to the outside, a discharge port lid for opening and closing the discharge port, and driving the discharge port cover A drive motor for controlling the drive motor, lid opening / closing detection means for detecting opening / closing of the discharge port lid and sending a signal to the control section, and the lid opening / closing detection means for control comprising an optical switching element In the garbage processing machine, the lid open / close detection means is connected to an input terminal of a microcomputer of the control unit via a switch, and the drive motor is connected to an output terminal of the microcomputer via a relay and a motor drive circuit. the addition to the b-contact switch, garbage disposal, characterized in that connected to the relay the cover opening and closing detecting means and the secondary side connected to the primary side of the control switch It is.

That is, the garbage processing machine of the present invention is provided with lid opening / closing detection means for detecting opening / closing of the discharge port lid, the lid opening / closing detection means is a b-contact switch, and the lid opening / closing detection means is provided on the primary side of the control switch. The relay is connected to the secondary side . And the control part was set as the structure which stops electricity supply to a drive motor, when a lid | cover opening / closing detection means detects opening / closing of a discharge port cover. Therefore, even when the microcomputer of the control unit runs away, the drive motor can be surely stopped via the control switch. Furthermore, it is not necessary to provide a separate switch for stopping the drive motor in addition to the lid opening / closing detection means.

The garbage processing machine of the present invention is provided with lid opening / closing detection means for detecting opening / closing of the discharge lid, and this lid opening / closing detection means is a b-contact switch, and the lid opening / closing detection means is connected to the primary side of the control switch. The relay is connected to the secondary side . And the control part was set as the structure which stops electricity supply to a drive motor, when a lid | cover opening / closing detection means detects opening / closing of a discharge port cover. Therefore, even when the microcomputer of the control unit goes out of control, the drive motor can be reliably stopped via the control switch, so that the discharge port lid and the drive motor can be prevented from being damaged. Furthermore, since it is not necessary to provide a separate switch for stopping the drive motor in addition to the lid opening / closing detection means, the number of components can be reduced and the manufacturing cost can be reduced, and a space for providing another switch is not required. Therefore, the excellent effect of simplifying the structure near the discharge port is achieved.

  An embodiment of the present invention will be described below with reference to the drawings.

  1 is an external perspective view of a garbage disposal machine, FIG. 2 is a side configuration diagram, and FIG. 3 is a front configuration diagram. First, as shown in FIG. 1, reference numeral 1 denotes a main body of the garbage processing machine, and 2 denotes an openable / closable door for putting the garbage into the main body 1. Reference numeral 3 denotes an operation unit for controlling the operation of the garbage processing machine, and a processed product container for storing a container for receiving a dried processed product in the main body 1 below the operation unit 3. A storage unit 4 is provided.

  As shown in FIG. 2, reference numeral 5 denotes a processing container housed in the main body 1 for drying the garbage, 6 a burner section for generating combustion heat necessary for drying the garbage, and 7 an odor discharged from the processing container 5. This is an odorous air combustion chamber in which the components are thermally decomposed by the combustion flame of the burner section 6. Reference numeral 8 denotes a deodorization catalyst that is activated by the combustion heat of the burner section 6 to oxidatively decompose odor components. An orthogonal heat exchanger 9 is disposed downstream of the deodorization catalyst 8, and the downstream communicates with the exhaust pipe 10. .

  Further, an odor air intake port 12 is provided at the upper part in the processing container 5, which is provided with an odor air suction fan 11 that sucks odorous air from the processing container 5 and blows it to the odor air combustion chamber 7. The inlet 12 and the odorous air combustion chamber 7 communicate with each other via an odorous air duct 13. That is, the odorous air from the processing vessel 5 is thermally decomposed in the odorous air combustion chamber 7, then completely deodorized through the deodorizing catalyst 8, passes through the orthogonal heat exchanger 9 and is odorless from the exhaust tube 10. The air is discharged outside as air.

  As shown in FIG. 3, a circulation fan 15 is disposed outside the circulation air suction port 14, and the circulation air suction port 14 and the circulation duct 16 are communicated with each other through the circulation fan 15. The rectangular heat exchanger 9 communicates with a box body 17 provided so as to form a gap serving as an air passage around the orthogonal heat exchanger 9. Reference numeral 18 denotes a hot air outlet duct for introducing high-temperature air into the processing container 5. That is, the circulating air suction port 14, the circulating fan 15, the circulating duct 16, the box body 17, the orthogonal heat exchanger 9, and the hot air outlet duct 18 communicate with the processing container 5 to constitute an air circulation path.

  Further, a stirring means 19 for stirring the garbage is provided at the bottom of the processing container 5, and the stirring means 19 has a plurality of stirring arms 21 attached to a rotatable rotating shaft 20. Are equipped with stirring blades 22 for efficiently stirring the garbage at a predetermined angle. Further, an agitation drive means 23 for rotating the rotating shaft 20 of the agitation means 19 is disposed outside.

  Furthermore, 24 is a discharge port for discharging the dry processed product of garbage, and 25 is a processed product container for storing the dry processed product from the discharge port 24. Reference numeral 26 denotes a discharge port lid for opening and closing the discharge port 24. The drive motor 27 opens and closes the discharge port cover 26.

  Here, FIGS. 4A and 4B show the opening and closing of the discharge port lid 26, but the lid opening / closing detection means 28 that detects the opening and closing of the discharge port lid 26 detects the limit of opening of the discharge port lid 26. An open detection switch 29 and a close detection switch 30 for detecting a limit for closing the discharge port lid 26 are provided. 4A shows a state in which the discharge port lid 26 is opened and the open detection switch 29 is activated. FIG. 4B shows a state in which the discharge port lid 26 is closed and the close detection switch 30 is activated. It shows the state. Since both the open detection switch 29 and the close detection switch 30 are b contact switches, the contacts are in a closed state when not detected.

  5 is a control block diagram showing the control unit 31, wherein 32 is a photocoupler that is an optical switching element as a control switch, 33 is a microcomputer, 34 is a relay, and 35 is for driving the drive motor 27. It is a motor drive circuit. The open detection switch 29 and the close detection switch 30 are connected to the input terminal of the microcomputer 33 of the control unit 31 via the primary side of the photocoupler 32. In this embodiment, a photocoupler is used as a control switch. However, the control switch may be an optical switching element and is not limited to the photocoupler of this embodiment.

  On the other hand, the drive motor 27 is connected from the output terminal of the microcomputer 33 via the relay 34 and the motor drive circuit 35. Since one of the relays 34 is connected to the secondary side of the photocoupler 32, photo If current does not flow to the primary side of the coupler 32, current does not flow to the relay 34. That is, when no current flows to the primary side of the photocoupler 32, no current flows to the motor drive circuit 35, and the drive motor 27 stops.

  Next, the operation in the above configuration will be described. When the door 2 of the main body 1 is opened and garbage is put into the processing container 5 and the operation unit 3 is operated, combustion is first started in the burner unit 6, and the combustion heat of the combustion exhaust gas generated by this combustion is After the odor air combustion chamber 7, the deodorization catalyst 8, and the orthogonal heat exchanger 9 are heated, they are discharged to the outside through the exhaust tube 10.

  Furthermore, when the stirring means 19 is rotated by the stirring drive means 23 before and after the start of combustion, and the circulation fan 15 is started at the same time, the air in the processing container 5 flows into the circulation duct 16 from the circulation air suction port 14 and enters the box. It is sent to the body 17 and flows into the orthogonal heat exchanger 9 through the gap in the box 17. Then, the air passing through the orthogonal heat exchanger 9 exchanges heat with the combustion heat of the burner section 6 to become high-temperature air, flows into the processing vessel 5 from the hot air outlet duct 18, and is crushed and stirred to increase the surface area. Waste will be dried efficiently.

  On the other hand, the odorous air generated in the processing container 5 due to the drying treatment is ejected from the odorous air inlet 12 through the odorous air inlet 13 to the odorous air combustion chamber 7 by the odorous air suction fan 11. The components are thermally decomposed by the combustion flame of the burner section 6, and the odor components remaining without being thermally decomposed in the odor air combustion chamber 7 flow into the deodorization catalyst 8 downstream of the odor air combustion chamber 7 and are completely oxidized and decomposed. Will be.

  Thereafter, when the drying process proceeds and the temperature detecting means provided in the processing container 5 detects a predetermined temperature, it is determined that the garbage has been dried, the combustion thermal power of the burner unit 6 is lowered, and the combustion is stopped after operating for a predetermined time. . Then, the circulation fan 15, the odorous air suction fan 11 and the stirring means 20 are operated for a predetermined time to cool the processing container 5 and the dried product, thereby completing the drying process of the garbage. Then, the drive motor 27 of the discharge port lid 26 is actuated to open the discharge port 24 provided in the processing container 5, and the agitation means 19 discharges the dried processed product from the discharge port 24 to the processed product container 25, thus completing all operations. To do.

  Here, the control of the drive motor 27 driving the discharge port lid 26 will be described with reference to FIG. First, when the discharge port lid 26 is opened and the open detection switch 29 is activated, the contact of the open detection switch 29 is changed from the closed state to the open state, and no current flows through the photocoupler 32. Then, no current flows through the relay 34 connected to the secondary side of the photocoupler 32, so that the current from the motor drive circuit 35 to the drive motor 27 is cut off. Similarly, the current from the motor drive circuit 35 to the drive motor 27 is also cut off when the discharge port lid 26 is closed and the close detection switch 30 is activated.

  That is, when the open detection switch 29 or the close detection switch 30 whose contact is the b contact is activated, the contact is opened and no current flows, so that the current to the drive motor 27 via the photocoupler 32, the relay 34 and the motor drive circuit 35. Therefore, the discharge port lid 26 driven by the drive motor 27 cannot be opened or closed any further. Therefore, even if the microcomputer 33 runs away for some reason and the drive motor 27 continues to rotate, if the open detection switch 29 or the close detection switch 30 is activated, the current to the drive motor 27 is cut off. Thus, the drive motor 27 can be stopped.

  Furthermore, since it is not necessary to provide a separate switch without the microcomputer 33 in order to reliably stop the drive motor 27 of the discharge port lid 26, the number of parts can be reduced and the manufacturing cost can be kept low. Since the space to be provided is not necessary, an excellent effect is achieved such that the structure near the discharge port 24 can be simplified.

It is an external appearance perspective view of the Example of this invention. It is a side block diagram of the Example of this invention. It is a front block diagram of the Example of this invention. It is a block diagram explaining the discharge outlet cover of the Example of this invention. 4A shows a state where the discharge port lid is opened, and FIG. 4B shows a state where the discharge port lid is closed. It is a control block diagram of the Example of this invention. It is a conventional control block diagram.

Explanation of symbols

5 Processing Container 24 Discharge Port 26 Discharge Port Cover 27 Drive Motor 28 Cover Open / Close Detection Unit 29 Open Detection Switch 30 Close Detection Switch 31 Control Unit 32 Control Switch (Photocoupler)

Claims (1)

A processing container for reducing garbage, a discharge port for discharging the garbage reduced in the processing container to the outside, a discharge port lid for opening and closing the discharge port, a drive motor for driving the discharge port cover, and the drive A control unit for controlling the motor; lid opening / closing detection means for detecting opening / closing of the discharge port lid and sending a signal to the control unit; and the control unit for controlling the lid opening / closing detection means via a control switch comprising an optical switching element. In the garbage processing machine, which is connected to the input terminal of the microcomputer and the drive motor is connected to the output terminal of the microcomputer via a relay and a motor drive circuit , the lid open / close detection means is a b-contact switch. The garbage disposal machine , wherein the lid open / close detection means is connected to the primary side of the control switch and the relay is connected to the secondary side .

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