JP2010234272A - Garbage treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage treatment device capable of preventing the occurrence of the biting-in of foreign matter by estimating the biting-in of the foreign matter to early emit a stop order in a stage before the foreign matter is perfectly bitten in and capable of easily releasing the biting-in of the foreign matter after stoppage even if the biting-in of the foreign matter occurs. <P>SOLUTION: The occurrence of the biting-in of the foreign matter is estimated on the basis of the number of rotations to stop rotation, the rotation in the direction reverse to a rotary direction estimating the biting-in of the foreign matter is performed to stop rotation, operation for performing the rotation in a positive direction to stop the same is successively repeated a plurality of times to release the biting-in state of the foreign matter and stopped to report that the biting-in state of the foreign matter is released. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a garbage disposal device such as garbage that is installed and used in a kitchen.

Conventionally, in garbage processing equipment such as garbage, the garbage thrown into the pulverization container is ground and pulverized under water supply by a pulverization mechanism, and the pulverized material is discharged together with waste water.
In such a garbage disposal device, if there is hard garbage such as bone inside the crushing device, or if foreign matter such as a spoon or fork falls into the crushing container accidentally, the crushing mechanism bites this. It can happen.
When such a bite occurs, there is a problem that if the apparatus is operated as it is, not only the garbage can be pulverized but also the apparatus is broken.

For this reason, when a biting abnormality occurs, the abnormality is detected and the rotary blade (motor) is operated in an abnormality canceling mode such as reverse rotation. Has been.
However, in the conventional abnormality detection means as disclosed in Document 1, since the monitoring of the change in the rotation speed and the motor current value is continued over a certain time after the decrease in the rotation speed is detected, After being bitten, the occurrence of biting was judged.
For this reason, at the time of stopping, the rotating teeth are in a state where foreign matter is firmly caught, and even if the operation in the biting release mode is performed after that, the torque necessary for the release becomes large and the biting cannot be released. There were many things.

JP 2008-55379 A

  The aspect of the present invention has been made based on recognition of such a problem, and in the garbage trap processing device, a stop command is issued at an early stage before the foreign object is completely bitten by predicting biting. Provided is a scissor treatment device that can prevent occurrence of biting and biting, or can easily release biting after stopping even if biting occurs.

  According to one aspect of the present invention, there is provided a slag treatment device that is provided at a drain outlet of a sink and that pulverizes input slag and discharges the smashed slag together with cleaning water. A processing chamber, a pulverizing mechanism for pulverizing the soot introduced into the cocoon processing chamber by being rotationally driven, a driving mechanism for rotationally driving the pulverizing mechanism, and a controller for controlling the operation of the driving mechanism; A detection mechanism that detects the number of rotations of the crushing mechanism, and when the rotation number of the crushing mechanism detected by the detection mechanism falls below a predetermined value, the control unit immediately After stopping, by performing the biting release operation that repeats the reverse rotation command, stop command, forward rotation command, and stop command multiple times in order, the biting is predicted early and the crushing mechanism Stop spinning, and Possible to attempt the release of the narrowing automatically bite by releasing operation only write to.

According to the aspect of the present invention, it is possible to predict the occurrence of biting before the foreign object is completely bitten, and to immediately stop the rotation of the crushing mechanism, even if biting has occurred at the time of stoppage, A wrinkle treatment device that can easily release biting is provided.

It is sectional drawing which shows the state which installed the soot processing apparatus by one Embodiment of this invention in the sink. It is AA sectional drawing of FIG. 1, and is sectional drawing of a grinding | pulverization mechanism. It is BB sectional drawing of FIG. 2, and is a fragmentary sectional view of a grinding | pulverization mechanism. FIG. 5 is a control block diagram of the cognate processing apparatus, where a solid arrow line represents a power system power path, and a broken arrow line represents a signal system path. It is a chart figure of rotation speed and time which shows an example of the operation state of the coffin treatment apparatus. It is a chart figure which shows an example of the control step of the cohabitation processing apparatus.

A first aspect of the present invention is a soot processing device that is provided at a drain outlet of a sink and pulverizes input slag and discharges the smashed slag together with cleaning water, and a slag processing chamber for supplying slag to be crushed A pulverizing mechanism for pulverizing the soot introduced into the cocoon processing chamber by being rotationally driven, a drive mechanism for rotationally driving the pulverizing mechanism, a control unit for controlling the operation of the drive mechanism, and the pulverizing mechanism A detecting mechanism for detecting the number of rotations, and the control unit immediately stops the drive mechanism when the number of rotations of the crushing mechanism detected by the detection mechanism falls below a predetermined value. After that, the scissor processing device is characterized by performing a biting release operation in which a reverse rotation command, a stop command, a normal rotation command, and a stop command are sequentially repeated a plurality of times.
According to this apparatus, the occurrence of biting is predicted by detecting the rotation speed of the crushing mechanism, and it is determined that biting occurs when the rotation speed falls below a predetermined rotation speed, and the drive for driving the crushing mechanism is performed. Immediately after stopping the mechanism, torque is generated for a short time in the direction opposite to the rotation direction (forward direction) of the crushing mechanism at the time when the occurrence of biting is predicted. In addition, the torque generation in the reverse direction and the forward direction is repeated, and after a predetermined number of times, the operation is stopped. This repeated operation does not need to be performed any more when the bite is released, and it is not preferable to perform the repeated operation more than the required number of times because it damages the destruction of the inside of the soot processing chamber.

In a second aspect based on the first aspect, the driving mechanism includes a braking mechanism that brakes rotation of the crushing mechanism, and the control unit drives the driving mechanism when stopping the driving mechanism. In this case, the driving mechanism is stopped by operating the braking mechanism at the same time as the power supply for cutting is cut off.
According to this soot processing device, it is possible to reliably stop the rotation of the crushing mechanism immediately after the occurrence of biting is predicted.

A third aspect of the present invention is the scissor processing device according to the first or second aspect of the present invention, further comprising notification means for notifying the user after the biting release operation is completed. .
According to this dredging device, when the dredging device stops abnormally, the user is immediately notified of this, so that the user notices this, removes the biting foreign matter, etc., and then grinds again. It is possible to perform an operation for starting.

Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
First, with reference to FIGS. 1 to 4, a wrinkle processing apparatus according to an embodiment of the present invention will be described. FIG. 1 is a cross-sectional view showing an outline when a soot treating apparatus according to an embodiment of the present invention is installed in a sink, and FIG. 2 is a cross-sectional view taken along line AA of FIG. . FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2 and is a partial cross-sectional view of the crushing mechanism. FIG. 4 is a control block diagram of the cognate processing apparatus, where a solid arrow indicates a power system power path, and a broken arrow line indicates a signal system path.

Referring to FIG. 1, the waste disposal apparatus 12 according to an embodiment of the present invention is installed at a lower portion of the drainage port 21 of the sink 20, and the garbage disposal chamber 11 communicates with the drainage port 21 and the garbage in the waste disposal chamber 11. A crushing mechanism 6 for crushing the crushing mechanism, a drive mechanism 10 for rotationally driving the crushing mechanism 6, a control unit 13 for controlling the operation of the drive mechanism 10, and a rotational speed of the drive mechanism 10 are detected. A detection mechanism 14 that feeds back to the control unit 13; a braking mechanism 15 that applies braking so as to stop the rotation of the drive mechanism when the rotational speed is equal to or less than a predetermined value; and a notification means 16 that notifies the control state. It consists of.

FIG. 2 shows an embodiment of the present invention, and is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view taken along the line BB in FIG. According to the present embodiment, the crushing mechanism 6 includes a rotating shaft 3 that is operatively connected to the driving mechanism 10 shown in FIG. 1 at the center, and is strong so that the rotational force from the rotating shaft 3 is transmitted to the rotating plate 4. It is fixed to. A swing hammer 2 for crushing and crushing the garbage is slidably fixed to the upper portion of the rotating plate 4 by a shaft 5, and further surrounds the rotating plate 2 and the periphery of the swing hammer 2. The fixed tooth 1 is fixed by providing a predetermined gap 7.

FIG. 4 is a control block diagram of the cognate processing apparatus, in which a solid arrow line represents a power system power path, and a broken arrow line represents a signal system path.
The drive mechanism 10 includes a rotating shaft 3 connected to a crushing mechanism 6 (not shown) so that power can be transmitted, a detection mechanism 14 for detecting the number of rotations so as to know the rotation state, and a braking mechanism 15 for stopping the drive mechanism 10. The control unit 13 for controlling the drive mechanism 10 includes a power system power line for supplying drive power to the drive mechanism 10 as necessary, and a signal for receiving a rotation speed signal from the detection mechanism 14. When the biting determination is made based on the line and the rotation speed signal, the driving power of the driving mechanism 10 is cut off and the brake mechanism 15 is connected via a switching mechanism 30 that supplies electric power to activate the braking mechanism 15.

In FIG. 4, the control unit 13 includes a power supply circuit 17, a drive circuit 18, and a control circuit 19. The power supply circuit 17 uses power received from a commercial power supply (not shown) as power of the control circuit 19. The power is supplied to the drive power of the drive mechanism 10 (solid arrow in the figure) via the drive circuit 18, and the power from the drive circuit 18 is normally supplied via the switching mechanism 30 to the drive mechanism 10. However, when the biting state is detected, the switching mechanism 30 shuts off the power path from the drive circuit 18 for the rotational drive of the drive mechanism 10 in response to a command from the control circuit 19, and the braking mechanism. 15 is configured to supply appropriate power.
With this configuration, it is possible to predict the occurrence of biting by the number of revolutions, and when the control unit 13 predicts that biting will occur, the power to the drive mechanism 10 is shut off and no rotational force is generated, so that the inertial force is not generated. Only rotational motion. At the same time, since the circuit is configured to operate the braking mechanism 15, the brake can be used effectively, it is possible to stop immediately after the biting prediction, and the probability that the rotation stop can be completed before biting Becomes higher. Even if it is bitten, it is a relatively loose bite, so that it is possible to reduce the operating torque necessary for releasing the bite.
In this embodiment, a DC motor is used as the drive mechanism 10, an electromagnetic brake is used as the brake mechanism 15, and a Hall IC is used as the rotation speed detection mechanism 14.

Next, the operation and action will be described.
The soot introduced from the drain 21 of the sink 20 in FIG. 1 is operated by operating a switch (not shown) that activates the soot treating device 12 installed below the drain 21. A signal for driving the crushing mechanism 6 is output from the control unit 13 to the driving mechanism 10 to perform the crushing operation. Moreover, the control part 13 grasps | ascertains a driving | running state by feeding back the rotation speed measurement information of the drive mechanism 10 from the detection mechanism 14. FIG. When the rotational speed of the drive mechanism 10 is less than or equal to a predetermined value during operation, the control circuit 19 determines that the biting occurs, and the control circuit 19 sends a rotation stop command and a braking command to the drive circuit 18 and the switching mechanism 30. The switching mechanism 30 cuts off the power supply for rotational driving and switches the circuit to operate the braking mechanism 15. By this operation, the rotation of the drive mechanism 10 and the crushing mechanism 6 connected thereto is immediately stopped. Next, the control circuit 19 releases the braking command, and what is the rotation direction (positive direction) at the time when it is determined that the biting occurs? Commands are issued to the drive circuit 18 and the switching mechanism 30 so as to generate rotational torque in the reverse direction. After a predetermined very short time has elapsed, a stop command is issued, and then a command is issued to the drive circuit 18 so as to generate a rotational torque in the positive direction. Further, after repeating the forward and reverse torque generation a predetermined number of times and performing the biting release operation, a stop command is issued, and at the same time, the notification means 16 notifies that an abnormal stop has occurred.

By configuring as shown in FIGS. 1 to 4, the soot treating apparatus of the present invention always detects the number of revolutions during the pulverization operation, and immediately stops the rotation when it is predicted that the biting state will occur. An operation is provided to prevent biting, and based on the determination result, a crushing operation is stopped, the biting release operation is performed a predetermined number of times, and then stopped to notify the occurrence of abnormality. It became possible.

FIG. 5 is a chart of the number of revolutions and time showing an example of the operating state of the soot processing apparatus 12 in the present invention, and FIG. 6 is a chart diagram showing an example of the control steps of the coffin processing apparatus 12.

In FIG. 5, the engine is operated at a rotational speed exceeding about 1000 rpm from the start of operation in the region of S10 to S12, and is operated so as to reach a rotational speed of 1000 rpm from about 1500 rpm shortly. However, there is a place where it is down to around 500rpm.
In the operation plan, this dent is not present, and the rotational speed drops due to the inclusion of foreign matter or the like. However, since the rotational speed higher than 500 rpm can be maintained, it is not determined that the biting is abnormal.
However, since the rotational speed has suddenly decreased before the area of S14 to S18 and has fallen below 500 rpm in the area of S14 to S18, the occurrence of biting is predicted and the biting correspondence mode is entered. S20 to S34 are a biting release operation, a subsequent stop, and a notification mode.
Here, in the biting release operation, the crushing mechanism 6 connected to the drive mechanism 10 does not rotate substantially, so it is impossible to detect the rotation speed, and only the rotation direction and the generated torque are set. It is. In order to release the bite, it is not necessary to move several degrees as the rotation angle, and a rotation angle that substantially leaves a gap between the biting sites is sufficient. In this case, the set torque at the time of start-up during normal operation is used as the torque at this time, and the torque is released without adjustment such as torque increase for releasing the bite. If a large torque is generated, there is a concern that when the bite is released, it will be bounced, causing excessive rotation and damaging the inside, or if the bite cannot be released, it will bite deeply and worsen the situation. The

Specifically, since the load state is unknown at start-up, which is the initial stage of operation, operation is performed with a torque of several percent to tens of percent of the maximum output that can be used by the device, and the rotational speed can be measured. Since the method of entering the rotational speed control at the time of reaching is used, the rotation command is stopped before full rotation, the rotation command is issued in the reverse direction, and the rotation command is repeatedly stopped. Therefore, the looseness of the gap at the biting portion is increased, and therefore, the bited portion can be easily removed.
In addition, after stopping the biting release operation, the user is informed and notified that the biting mode is stopped, so that the user can check the crushing mechanism 6 and prompt the user to check the biting state and remove foreign matter. Is possible.

FIG. 6 is a flowchart schematically showing operation steps in the control circuit in FIG. Here, the start step indicates a time zero point in FIG. After the start of operation, the number of revolutions increases steadily, and soon after reaching the target value (about 1100 rpm), the speed increases to the second target value (about 1500 rpm). Although the rotation speed has decreased in the middle, since the rotation speed is higher than 500 rpm that makes the bite prediction judgment, the operation is continued as it is (S10 to S12). However, in S12, the rotation speed is 500 rpm or less. If detected, a rotation braking command is issued in S16, and it is checked whether or not it is stopped in S18. In S20, counting of the biting release operation performed from S22 to S32 is started, and the biting release operation is started. In S34, it is determined whether or not the release operation has reached a predetermined number of times. In S36, since the predetermined number of repetitions N has been reached, a stop command is issued. Further, a command not to supply power to the drive circuit is issued in S38, and then a notification command is issued in S40 to notify that the stop mode is after the biting release operation. Finally, in S42, a reset standby mode is set.
By setting to the reset waiting mode, the switch operation that was effective in the normal state is invalidated, and the drive circuit is set not to function. It is possible to configure so that the switch operation does not function unless the user performs a reset operation from the outside.
With this configuration, it is possible to implicitly indicate that the stop is due to an abnormality even when the user is not present at the time of occurrence of the abnormality, and it is possible to prompt internal confirmation.

As mentioned above, although preferred embodiment of this invention was described, it cannot be overemphasized that a various change can be added to embodiment mentioned above.
For example, in this embodiment, the brake mechanism is an electromagnetic brake, but it may be a short brake by a method of short-circuiting the drive circuit, and various mechanisms such as a brake that mechanically brakes are adopted. be able to.

DESCRIPTION OF SYMBOLS 1 ... Fixed tooth 2 ... Swing hammer 3 ... Rotating shaft 4 ... Rotating plate 5 ... Shaft 6 ... Grinding mechanism 7 ... Gap 8 ... Small hole 10 ... Drive mechanism 11 ... Soot processing chamber 12 ... Soot processing apparatus 13 ... Control part 14 ... Detection Mechanism 15 ... Brake mechanism 16 ... Notification means 17 ... Power supply circuit 18 ... Drive circuit 19 ... Control circuit 20 ... Sink 21 ... Drain port 30 ... Switching mechanism

Claims (3)

A soot processing device that is provided at the drain outlet of the sink and pulverizes the soot that has been thrown in and discharges the ground soot together with the washing water,
A cocoon processing chamber for putting cocoons to be crushed;
A pulverizing mechanism for pulverizing the soot introduced into the slag processing chamber by being rotationally driven; a drive mechanism for rotationally driving the pulverizing mechanism;
A control unit for controlling the operation of the drive mechanism;
A detection mechanism for detecting the number of rotations of the crushing mechanism,
When the rotational speed of the crushing mechanism detected by the detection mechanism is a predetermined value or less, the control unit,
After immediately stopping the drive mechanism,
A scissor treatment device that performs a biting release operation in which a reverse rotation command, a stop command, a normal rotation command, and a stop command are sequentially repeated a plurality of times. The drive mechanism includes a brake mechanism that brakes the rotation of the crushing mechanism, and when the drive mechanism is stopped, the control unit shuts off power supply for driving the drive mechanism, and at the same time, the brake mechanism The wrinkle processing apparatus according to claim 1, wherein the driving mechanism is stopped by operating the sway. The wrinkle processing apparatus according to claim 1, further comprising a notification unit that notifies a user of the fact after the biting release operation is completed.

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