JPH03234859A - Automatic washer for rug - Google Patents

Abstract

PURPOSE:To continuously perform operation of automatic washing for a long time by controlling operation of a vacuum pump and swing valve connected to a storage tank of a used detergent or rinsing water sucked in processes for washing, brushing, washing with water, sucking and dehydrating of a rug based on a sensed water level signal of a sensor. CONSTITUTION:In both sucking devices for jetting a detergent on a continuously running rug, washing and brushing the rug, then feeding clear water, rinsing the rug, subsequently sucking the rinsed water, rinsing the rug with clear water and further sucking and dehydrating the rug, a vacuum pump 58 is connected to a tank 53 for storing the used detergent or rinsing water and an openable and closable swing valve 55 is connected to the lower part of the tank 53. A sensor 57 for sensing the water level in the tank 53 is simultaneously provided. When the aforementioned sensor 57 senses the upper limit water level, the vacuum pump 58 is stopped and the swing valve 55 is simultaneously opened. When the lower limit water level is sensed, the swing valve 55 is closed and the vacuum pump 58 is operated to reduce a load thereon. Thereby, continuous operation for a long time can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic washing and flotation device used for washing carpets and other rugs, and in particular, the present invention relates to an automatic washing and flotation device used for washing carpets and other rugs, and in particular, to a device that reliably drains used detergent and rinsing water to the rugs and other objects to be washed. The present invention relates to a cleaning device that removes water from water.

[Conventional technology]

Conventionally, various automatic rug cleaning devices for commercial use that clean rugs have been provided. All of these devices automate the hard labor and skill required for cleaning rugs, which was previously done by hand, making it easier and more efficient. The most commonly used of these devices is a detergent supply device that sprays and supplies detergent to the rug as it is moved along the conveyance path, and a cleaning brushing device that brushes the raised surface of the rug. Then, after spraying fresh water from the rinsing water supply device, the used detergent is removed and collected by suction with the used detergent suction device, and then fresh water is sprayed again from the rinsing water supply device to perform the rinsing operation. The used rinsing water was removed by suction with a clean water suction device, the hair was dried, and finally the hair was styled with a brush.

[Problem to be solved by the invention]

However, in the above-mentioned device, if detergent remains on the rug after washing and there is rinsing water that is dirty water, it takes a long time to dry, and the dirty water can also cause stains on the rug. Also, after drying, residual detergent turns into dust, which has a negative impact on health.

SUMMARY OF THE INVENTION Therefore, the present invention provides an automatic rug cleaning device that reliably absorbs and removes residual detergent and rinsing water after washing the rug, shortens the drying time, and is also hygienic.

[Means to solve the problem]

A suction opening that sprays and brushes the detergent onto the surface to be cleaned that is conveyed on the conveyance path, and contacts the surface to be cleaned; a suction duct that connects the suction opening and the tank; and a suction duct that connects the suction opening and the used detergent. Equipped with a tank that stores rinsing water, a vacuum pump connected to the tank, a swing valve that can be opened and closed at the bottom of the tank, and a sensor that detects the preset upper and lower water levels in the tank. After the rinsing liquid is sprayed by the used detergent suction device which is connected with the first rinsing clean water supply device and the used clean water suction device which is connected with the second rinsing clean water supply device, When the sensor detects the upper limit water level, the vacuum pump is stopped.
The swing valve is opened, and when the sensor detects the lower limit water level, the vacuum pump is activated, the swing valve is closed, and the remaining detergent is removed.
It is equipped with a structure for sucking and draining rinsing water.

Furthermore, the used detergent suction device and the used clean water suction device each include a suction opening that contacts the surface to be cleaned, a plurality of suction ducts that connect the suction opening and a tank, and a suction device that collects the used detergent and used rinsing water. A tank that stores water, multiple vacuum pumps connected to the tank, and a drainage pump connected to the bottom of the tank.

A sensor is provided to detect a preset upper limit water level and a lower limit water level of the water level in the tank, and the plurality of vacuum pumps are operated alternately at set time intervals, and when the sensor detects the upper limit water level, the drain pump is operated. However, the drain pump is configured to stop when the sensor detects the lower limit water level.

[Effect]

A detergent is sprayed onto the surface to be cleaned of a rug, which is an object to be washed, which is transported from the upstream side to the downstream side of the transport path, for brushing, and rinsing water is sprayed for rinsing.

The detergent and rinse water remaining in the rug are then sucked into the tank with a vacuum pump. When the wastewater in the tank reaches a preset upper limit water level, suction is stopped and the drain valve is opened to drain the water, and when the water level in the tank reaches the preset lower limit water level, the drain valve is closed and suction work begins.

Furthermore, multiple vacuum pumps are operated alternately to reduce the load on each vacuum pump while constantly suctioning, and wastewater in the tank is actively drained using a drainage pump that operates at the upper limit water level and stops at the lower limit water level. By doing so, the work time for removing detergent and rinsing water is shortened.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is an overall view schematically showing the structure of an embodiment of the automatic rug cleaning apparatus of the present invention.

The following devices are sequentially arranged from the entrance side toward the downstream side along the transport path 1 for carpets such as carpets. At this time, the transport direction of the rug is indicated by arrow X, and the direction perpendicular to the transport direction is indicated by arrow Y.
Indicated by

An automatic width detection section 2 and a rug detection sensor 3 that detects the rug being conveyed and instructs the automatic width detection section 2 to start operation are arranged at the entrance of the automatic rug cleaning device.

Next, a rug conveyor belt 4 is provided, which has a raw rubber strip pasted on the surface of the endless timing belt to make it non-slip. A cleaning brushing device 5 consisting of a plurality of brushing rolls is disposed on the rug conveying belt 4, and a feed roller 6 and a feed roller 7 are disposed at the entrance and exit sides of the cleaning brushing device 5, respectively. A detergent supply device 8 is disposed between the cleaning brushing device 6 and the cleaning brushing device 5.

A movable used detergent suction device 10 and a first rinsing water supply device 9 that moves following the used detergent suction device 10 are arranged downstream of the cleaning brushing device 5. Next, a used clean water suction device 13 that is movable via the delivery roller 11 and a second rinsing clean water supply device 12 that moves following the used clean water suction device 13 are provided. Furthermore, conveyance path 1
A feed roller 14 and a brush 1 are provided on the most downstream side of the
5 will be placed. Each of these devices is supported by a frame (not shown).

Next, the configuration and operation of each device provided along the transport direction of the rug will be explained.

FIG. 2 shows an explanatory diagram of the automatic width detection unit 2, in which a receiver having a long hole slit 17 arranged in the conveyance path 1 of the rug 16 is a plate 1.
A ball screw shaft 24 is disposed below the conveyance path 1 in a direction perpendicular to the conveyance path 1 and is rotatably supported. This ball screw shaft 24 is connected to the motor 20 and rotates. and,
A nut-shaped female screw 21 is screwed onto the ball screw shaft 24, and the female screw 21 moves in the width direction of the conveyance path 1 (in the direction of arrow Y in the figure) by forward and reverse rotation of the ball screw shaft 24.

A pair of reflective photoelectric switches 22 and 23 are attached to the female screw 21.
are installed at predetermined intervals.

In the automatic width detection unit 2, when the rug detection sensor 3 detects the tip (not shown) of the rug 16, the motor 7-20 is energized, and when both switches 22 and 23 are in the light receiving state, that is, both switches 22 and 23 are both located below the rug 16, the motor 20
rotates forward, the female screw 21 moves toward the side end of the conveyance path 1 (rightward in FIG.
The rotation of the motor 20 stops at a position opposite to the lower part of the motor 6a.

On the other hand, when both switches 22 and 23 are not receiving light, that is, when there is no mat 16 above both switches 22 and 23, the motor 20 rotates in the opposite direction and the female screw 21 rotates to the left. direction, and move toward the center of conveyance path 1 (
The rotation stops at the position where the switch 22 (toward the left in FIG. 2) is in the light receiving state. In this way, the width of the rug 16 is automatically detected.

Next, the rug 16 fed in by the feeding roller 6 is supplied with detergent from the detergent supply device 8 and is brushed and cleaned by the cleaning and brushing device 5.

The washed rug 16 is delivered to the used detergent suction device 10 by a delivery roller ruff. The first rinsing water supply device 9 and the second rinsing water supply device 12 are devices that spray fresh water onto the rug. Used detergent suction device 1
0 is a device that removes the rinsing water supplied by the first rinsing water supply device 9 and the detergent remaining in the rug 16 from the rug 16 by suction, and the used fresh water suction device 13
is a device that removes the rinsing water supplied by the second rinsing water supply device 12 from the rug 16 by suction.

The used detergent suction device 10 connected with the first rinsing water supply device 9 and the used clean water suction device 13 connected with the second rinsing water supply device 12 have the same configuration.

FIG. 3 shows an embodiment of each rinsing water supply device 9.12.

A solenoid valve 38 for controlling injection is installed in each of a plurality of injection nozzles 37 arranged at regular intervals in the width direction of the rug 16.
This solenoid valve 38 is connected to a water supply source via a main solenoid valve 39. Then, the position of the female screw 21 of the automatic width detection unit 2 is detected by a counting method, and only the solenoid valves 37 of the number corresponding to this detection signal are opened, and fresh water is supplied only from the nozzle 37 corresponding to the width of the rug 6. inject. Also, in the detergent supply device 8, if a plurality of detergent spray nozzles are provided and the detergent is sprayed only from the nozzle corresponding to the width of the rug, detergent can be saved.

Next, the used detergent suction device 10 and the used clean water suction device 13
The configuration of is explained.

FIG. 4 shows a front view of the opening width adjusting means 30 provided in the used detergent suction device 10 and the used fresh water suction device 13 (the suction opening 31 is shown as a sectional view).

The used detergent suction device 1o and the used fresh water suction device 13 have a width equal to the width of the conveyance path 1, and are provided with a box-shaped suction opening 31 whose lower surface is opened as a suction port 37.
A suction port 37 is arranged corresponding to the surface of the conveyance path. Inside the suction opening 31, the opening width of the suction port 37 of the suction opening 31, which is a member of the opening width adjusting means 30, is changed by moving in the direction of arrow Y in FIG. 4 (width direction of the suction opening 31). A shutter 35 is provided. The shutter 35 is a plate-shaped body that has the shape of the inner surface of the side wall of the suction bow opening 31 in the direction of movement of the conveyance path 1 (arrow X direction), and can completely close a portion of the suction port 37 . A female screw 36 of the opening width adjusting means 30 is fixed to the upper part of the shutter 35. A ball screw shaft 32 is rotatably supported at the upper end of the suction opening 31 in a direction perpendicular to the conveyance path 1 .
are screwed together. This ball screw shaft 32 is connected to a motor 33, and as the motor 33 rotates, the ball screw shaft 32 rotates, and as the ball screw shaft 32 rotates, the female screw 36 and the shutter 35 integrated therewith move in the direction of the arrow shown in the figure (suction opening 31
width direction) to adjust the opening of the suction port 37. In this way, the size of the suction port is changed by the opening width adjusting means 30.

This motor 33 is interlocked with the motor 20 of the automatic width detection section 2, and the shutter 35 is stopped at a position that matches the female screw 21, that is, a position opposite to the side end 16a of the rug 16, and the suction opening of the suction opening 31 is stopped. 37]1 is automatically adjusted to match the width of the rug 16. This aperture width adjustment means 30 is attached with an origin correction device (not shown).

Next, vertical movement means 40 and back and forth movement means 4 that move the movable used detergent suction device 10 and used clean water suction device 13 up and down and back and forth with respect to the traveling direction of the conveyance path 1
1 will be explained with reference to FIGS. 5 and 6. 5 and 6 are a front view and a side view of the second lower moving means 40 and the forward and backward moving means 41, respectively.

Although not shown, the used detergent suction device 10 is connected to the fresh water supply device 9, and the used fresh water suction device 13 is connected to the fresh water supply section 12, and each moves as a body.

The vertical movement means 40 is a cylinder 4 that moves the suction opening 31 up and down with respect to a frame (not shown) via a guide rod 42.
3 and arranged at both ends of the suction opening 31 in the width direction. The forward and backward moving means 41 moves the rug 16 in the transport direction (
A ball screw shaft 44 is rotatably supported on a frame (not shown) located in the direction of arrow 44, and a female screw 46 that is screwed into the ball screw shaft 44, and by forward and reverse rotation of the ball screw shaft 44, the suction opening 31 of the used detergent suction device 10 and the used clean water suction device 13 is opened in the direction indicated by the arrow X through the female screw 46. It moves back and forth in the direction (transport direction of the object to be cleaned). Back and forth movement means 41
are provided in pairs at both ends of the suction opening 31 in the width direction.

The detergent supply device 8, the first rinsing water supply device M9, the used detergent suction device 10, the second rinsing water supply device 12, and the used clean water suction device 13 are controlled by a control unit (not shown) consisting of, for example, a sequence controller. The operation is controlled as follows.

The detergent supply device 8 starts spraying detergent after the rug detection sensor 3 detects the tip of the rug 16, and stops supplying the detergent when the rug 16 is no longer detected.

The used detergent suction device 10 and the used fresh water suction device 13 are
Normally, the rug 16 is raised to an initial position on the transport path, and when a sensor (not shown) installed at a predetermined position detects the tip of the rug 16 being transported, the first rinsing water supply device 9 is driven to spray fresh water onto the rug 16. In this state, the rug 16 is conveyed a certain distance. When this conveyance is detected by a sensor (not shown), the cylinder 43 of the vertical moving means 40 discharges the used detergent suction device 10, and at the same time, the spraying of fresh water is stopped. Then, the used detergent suction device 10 moves in the transport direction of the rug 16 at a speed faster than the transport speed of the rug 16 while handling the rug 16 by driving the back-and-forth movement means 41, and lifts up when the rug 16 has moved to a predetermined distance. do. After waiting while the rug 16 moves by the length handled by the used detergent suction device 10, the used detergent suction device 10 descends again and the rug 16 passes through the used detergent suction device 10 for a certain distance. Perform the suction operation until the rug 1
At the same time as 6 passes, it rises and retreats to return to its initial position. The operation of the second rinsing water supply device 12 and the used clean water suction device 13 is controlled at the same timing as the operation of the first rinsing water supply device 9 and the used detergent suction device 10.

Next, the used detergent suction device 10 and the used clean water suction device 1
The suction mechanism of No. 3 will be explained with reference to the diagram shown in FIG.

A suction opening 31 having a lower surface opened and serving as a suction port 37 is connected to a tank 53 via a suction duct 52 .

A filter 54 is disposed in the tank 53 at the lower part of the outlet of the suction duct 52, and a swing valve 55 whose opening and closing is controlled by a timer or counter is provided at the lower end.
will be established. One end of a suction duct 56 is connected to the upper end of the tank 53, and the other end is connected to a dry vacuum pump 58. The dry vacuum pump 58 is provided with an exhaust port 59 to facilitate suction work.

The suction opening 31 of the used detergent suction device 1o and the used fresh water suction device 13 configured in this way is lowered by the cylinder 43 of the vertical movement means 40, and at the same time, the dry vacuum pump 58
is activated and performs powerful suction. The suction opening 3 of the used detergent suction device 10 and the used fresh water suction device 13 is placed on the rug 16.
When the first suction port 37 contacts and moves, detergent and rinsing water remaining in the rug 16 are sucked out. The suctioned detergent and rinsing water (sewage) pass through the suction duct 52 and enter the tank 53.
discharged inside. The discharged detergent and waste water are filtered through filter 5.
4, where the collected garbage, scum, etc. are removed, and only the waste water accumulates in the tank 53.

The dry vacuum pump 58 stops when a preset time or value is reached, and then the swing valve 55 is rotated and opened to naturally drain the wastewater accumulated in the tank 53. When the stoppage of the dry vacuum pump 58 reaches a preset time or numerical value, the swing valve 55 is rotated to close the valve to stop drainage, and the dry vacuum pump 58 is started to start suction work again.

FIG. 8 shows a device for detecting the amount of sewage stored in the tank 53 using a water level sensor 57. This water level sensor 5
7 uses a position sensor such as a float switch or a capacitive switch. The water level sensor 57 is attached to the side wall of the tank 53, and the water level (
The upper limit water level) and the waste water level (lower limit = 16 water level) at which the swing valve 55 is closed are set in advance, and when the water level sensor 57 detects that the waste water has reached the set upper limit water level, the swing valve 55 is rotated and opened. The waste water is naturally discharged, and at the same time, the dry vacuum pump 58 is stopped. When the water level sensor 57 detects that the waste water is discharged from the swing valve 55 and the waste water in the tank 53 has reached the set lower limit water level, the swing valve 55 is rotated to close the valve, and the dry vacuum pump 58 is started. It is configured to start water absorption work again.

In the air containing wastewater sucked into the tank 53, only heavy water accumulates at the bottom, and the gas and liquid are separated, and only air is sucked from the top of the tank 53 through the suction duct 56.

In the automatic rug cleaning device, a used detergent suction device]
, ○ and other embodiments of the used fresh water suction device 13 are shown in the ninth example.
This will be explained using figures.

A plurality of ducts 62 (two in this embodiment) are connected to the upper part of the suction opening 61 which opens on the lower surface, and the other end of the duct 62 is opened into the tank 63. A filter 64 is installed under the opening of the duct 62.

A plurality of suction ducts 1-66 are provided in the upper part of the tank 63, and the tips of each suction duct 66 are connected to respective dry vacuum pumps 68 (dry vacuum pump 681, dry vacuum pump 682).
Connect to. The dry vacuum pump 681 or the dry vacuum pump 682 is repeatedly activated and stopped at each set time, and is controlled so that the dry vacuum pump 681 and the dry vacuum pump 682 are not activated or stopped at the same time.

That is, when a large number of dry vacuum pumps are installed, all the vacuum pumps are controlled so that the suction operation from the suction port 61 is always performed at staggered times so that the operation and stop of all the vacuum pumps are not synchronized with each other.

One end of a drainage duct 65 connected to a drainage pump 69 is connected to the lower part of the tank 63 to actively drain the sewage inside the tank 63. A water level sensor 67 is provided on the side wall of the tank 63. The drain pump 69 is controlled to start when the water level sensor 67 detects a preset upper limit water level, drain the dirty water in the tank, and stop when the water level sensor 67 detects a preset lower limit water level.

By configuring the used detergent suction device W10 and the used fresh water suction device 13 in this way, the load on each dry vacuum pump can be reduced, the system can be operated continuously for a long time, and the waste in the rug 16 can be constantly removed. Used detergent and waste water can be reliably removed with powerful suction power, reducing drying time.

Then, the hair is styled using the brushing brush 15 disposed on the most downstream side, and the cleaning work is completed.

〔Effect of the invention〕

As described above, the present invention is an apparatus for automatically cleaning rugs such as carpets and mats, which suctions and removes used detergent and used rinsing water with strong suction power, improves the cleaning effect, and Since there is no residual detergent, the inconvenience of detergent scattering as dust after drying is eliminated. In addition, by reliably suctioning out used rinsing water, drying time is shortened and work efficiency is improved.

Furthermore, by preparing multiple vacuum pumps in parallel, the load is reduced and continuous operation for a long time is possible.

=19-

[Brief explanation of drawings]

Figure 1 is a schematic overall view of an embodiment of the present invention, Figure 2 is a front view of the automatic width detection section, Figure 3 is a schematic diagram of a rinsing water supply device, and Figure 4 is a diagram showing used detergent and used clean water. A front view of the opening width adjusting means with the suction opening of the suction device in cross section, FIG. 5 is an explanatory view of the vertical movement means, FIG. 6 is an explanatory view of the forward and backward movement means, and FIG. 7 is a used detergent suction device. FIG. 8 is an explanatory diagram showing another embodiment of the suction mechanism, and FIG. 9 is an explanatory diagram showing still another embodiment of the suction mechanism. 1... Conveyance path, 5... Cleaning brushing device, 8...
. . . Detergent supply device, 9 . . . First rinsing water supply device, 10
......Used detergent suction device, 12...
... Second rinsing water supply device, = 20 - ... Used fresh water suction device, - Raising brush, 6] - ... Sucking [opening, 62 ... ...Suction duct, 63...Tank, ...Swing valve, 67...Sensor 68...Dry vacuum pump. 13... 15 ・ ・ 31. 52. 53. 55... 57. 58,

Claims (2)

[Claims] (1) A used detergent suction device that sprays detergent and brushes the cleaning surface of the object to be washed that is transported on a conveyance path, and is connected to a first rinsing water supply device, and a second rinsing water supply device. An automatic rug cleaning device that sprays a rinsing liquid and suctions and removes residual detergent and rinsing water from an object to be washed by using a used clean water suction device that is connected to the device, wherein the used detergent suction device and the used clean water The suction device includes a suction opening that contacts the surface to be cleaned, a suction duct that connects the suction opening and the tank, a tank that stores the sucked used detergent and used rinsing water, and a vacuum pump that is connected to the tank. It is equipped with a swing valve placed at the bottom of the tank that can be opened and closed, and a sensor that detects the upper and lower limit water levels set in advance for the water level in the tank. When the sensor detects the upper limit water level, the vacuum pump is stopped and the vacuum pump starts swinging. An automatic rug cleaning device characterized in that a valve is opened, and when a sensor detects a lower limit water level, a vacuum pump is activated and a swing valve is closed. (2) The used detergent suction device and the used clean water suction device consist of a suction opening that comes into contact with the surface to be cleaned, a plurality of suction ducts that connect the suction opening and a tank, and the suctioned used detergent and used water suction device. A tank for storing rinsing water, a plurality of vacuum pumps connected to the tank, a drainage pump connected to the lower part of the tank, and a sensor for detecting preset upper and lower water levels of the water level in the tank, A claim characterized in that the plurality of vacuum pumps are configured to operate alternately at set times, and when the sensor detects the upper limit water level, the drain pump is operated, and when the sensor detects the lower limit water level, the drain pump is stopped. The automatic rug cleaning device according to item 1.