JP2023083057A - Washing device - Google Patents

Abstract

To provide a washing device capable of easily and appropriately recovering garbage washed away from an object to be washed.SOLUTION: A washing device 1 includes a first washing part 11 for washing an object P to be washed with washing water and a recovery part 30 disposed at the first washing part 11. The recovery part 30 includes a filter 31 for recovering garbage washed away from the object to be washed by washing, which includes a through-hole 33 through which the washing water can pass. The filter 31 is provided with a groove part 34 recessed downward in a vertical direction in an installation posture of the washing device 1, in a portion of the filter 31. A groove bottom 35 of the groove part 34 is provided with a suction port 36 for sucking garbage.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to a cleaning apparatus including a cleaning section for cleaning an object to be cleaned with cleaning water, and a recovery section provided in the cleaning section.

2. Description of the Related Art Conventionally, there has been proposed a washing apparatus for washing tableware such as plates and trays, and cooking utensils such as hotel pans (hereinafter collectively referred to as "objects to be washed") while conveying them. For example, one conventional washing apparatus arranges the objects to be washed after being used for cooking etc. side by side on a conveyor extending in the conveying direction, and continuously conveys the objects to be washed together with the conveyor. The object to be cleaned is cleaned by spraying cleaning water or steam toward it (see Patent Document 1, for example).

JP 2017-80160 A

By the way, some conventional washing apparatuses circulate the washing water used in the washing section and reuse it as washing water. For this reason, the conventional washing apparatus is equipped with a filter (so-called strainer, etc.) for removing garbage such as leftover food washed away from the object to be washed from the washing water used for washing. Generally, a filter is provided with through holes such as punch holes, and functions like a so-called sieve to allow washing water to pass through the through holes and collect dust on the filter.

However, when the waste such as leftover food washed away from the object to be washed is fine, such as ground sesame seeds and hijiki seaweed, the conventional washing apparatus prioritizes good circulation of the washing water, and the opening area of the through-hole is reduced. If the size is increased, dust passes through the through hole and cannot be properly removed. In addition, if the opening area of the through-hole is made small enough to prevent ground sesame seeds, hijiki seaweed, etc. from passing through, clogging is likely to occur, and the washing water overflows without returning to the washing tank, making it impossible to properly circulate. . In other words, the conventional washing apparatus has room for improvement in terms of maintaining proper circulation of washing water, collecting garbage such as leftover food washed away from the object to be washed, and the accuracy of garbage collection. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cleaning apparatus capable of easily and properly collecting dust washed away from an object to be cleaned.

In order to achieve the above object, a cleaning apparatus according to the present invention is characterized by the following [1] to [6].
[1]
A cleaning apparatus comprising a cleaning section for cleaning an object to be cleaned with cleaning water and a recovery section provided in the cleaning section,
The recovery unit is
collecting dust washed away from the object to be washed by the washing;
having a filter provided with a through-hole through which the washing water can pass;
The filter is
A groove recessed downward in the vertical direction in the installation posture of the cleaning device is provided in a part of the filter,
A suction port for sucking the dust is provided at the groove bottom of the groove,
Must be cleaning equipment.
[2]
In the cleaning device described in [1] above,
The cleaning unit is
further comprising a cleaning tank capable of collecting and storing the cleaning water that has passed through the through-hole;
The suction port is
arranged so as to be submerged in the cleaning water stored in the cleaning tank;
Must be cleaning equipment.
[3]
In the cleaning apparatus according to [1] or [2] above,
The groove is
The bottom surface of the groove bottom is composed of a plate-like member that does not allow the washing water to pass through,
The bottom surface is provided with the suction port,
Must be cleaning equipment.
[4]
In the cleaning apparatus according to any one of [1] to [3] above,
The recovery unit is
a collection basket for collecting the dust sucked from the suction port;
and a discharge mechanism for sucking dust into the collection basket,
Must be cleaning equipment.
[5]
In the cleaning apparatus according to any one of [1] to [4] above,
The filter is
Having a mesh structure in other places except the bottom of the groove bottom,
Must be cleaning equipment.
[6]
In the cleaning apparatus according to any one of [1] to [5] above,
washing the object to be washed by the plurality of washing units while conveying the object to be washed in the conveying direction;
The recovery unit is
provided in the first cleaning unit among the plurality of cleaning units,
Must be cleaning equipment.

According to the washing apparatus having the above configuration [1], the collection unit collects the garbage (so-called leftovers, etc.) washed away from the object to be washed by the washing unit, and has a through hole through which the washing water can pass. has a filter with a A portion of the filter is provided with a groove recessed downward in the vertical direction in the installation posture of the cleaning device. As a result, two types of flows are generated in the wash water at locations other than the grooves of the filter: a flow that passes through the through-holes and a flow that does not pass through the through-holes and heads toward the grooves on the plane of the filter. The flow of cleaning water toward the grooves serves to carry (collect) dirt washed away from the object to be cleaned from locations other than the grooves of the filter to the grooves. The dust collected in the groove is sucked from a suction port provided at the groove bottom of the groove. As a result, the washing apparatus of this configuration can easily and properly collect dust on the filter, and can maintain smooth circulation without washing water overflowing due to clogging of the filter.

According to the cleaning device having the above configuration [2], the suction port is submerged in the cleaning water stored in the cleaning tank capable of collecting and storing the cleaning water that has passed through the through hole of the recovery unit. placed in As a result, in the cleaning device of this configuration, the cleaning water flowing into the groove and the dust collected in the groove are mixed with the cleaning water in the groove and smoothly discharged from the suction port. Garbage is hard to remain.

According to the cleaning device having the configuration [3], the bottom surface of the groove bottom provided with the suction port is formed of a plate-like member that does not allow the cleaning water to pass through the groove. As a result, the cleaning device having this configuration can reliably direct the dust collected in the groove toward the suction port. In other words, the cleaning device having this configuration can suck the dust collected in the groove from the suction port without retaining the dust in the groove.

According to the cleaning device having the configuration [4] above, the collection basket is provided for collecting the dust sucked from the suction port. For example, if a collection basket is arranged outside the housing of the cleaning device, it becomes easier to dispose of the collected waste. Furthermore, the cleaning device of this configuration has a discharge mechanism for discharging the waste into the collection basket. For example, if a device that generates negative pressure is used as the discharge mechanism, negative pressure can be generated using the water flow and water pressure of the wash water passing through the pipes without providing a dedicated discharge pump (Fig. 2). In this way, the cleaning device having this configuration can easily and efficiently collect the dust.

According to the cleaning device having the configuration [5] above, the filter has a mesh structure defining through-holes in portions other than the bottom surface of the groove bottom. By the way, if the cleaning device does not have a mesh structure (that is, it has through holes such as punch holes), fine dust such as ground sesame seeds and hijiki seaweed washed away from the object to be cleaned may cause problems. Since the opening area of the through-hole is large compared to the dust, the dust passes through the through-hole and cannot be properly removed. On the other hand, if the cleaning device simply has a mesh structure, fine (small) dust as described above can be collected, but the through holes may be clogged with dust. However, in the cleaning apparatus of this configuration, as described above, by providing the grooves in the filter, it is possible to generate a flow of cleaning water toward the grooves and mix fine dust with the flow of cleaning water toward the grooves. . As a result, the cleaning device having this configuration can easily collect dust without clogging the through holes.

According to the cleaning apparatus having the above configuration [6], cleaning is performed in a plurality of cleaning units while transporting the object to be cleaned in the transport direction. The recovery section is provided in the first cleaning section among the plurality of cleaning sections. Here, in the above-described conventional washing apparatus, the washing water used for washing is collected, circulated, and reused as washing water. In such a conventional washing apparatus, if dust is mixed in the collected washing water, the washing water containing the dust is used in subsequent washing, and the expected effect of the washing apparatus cannot be obtained. There is a risk. However, the cleaning apparatus of this configuration can properly collect dust in the first stage of cleaning due to the above configuration. ), and thus the contamination of the cleaning tank (mixing of dust into the cleaning tank, etc.) can be suppressed. Note that the first cleaning section refers to the cleaning section arranged on the most upstream side in the transport direction.

As described above, according to the present invention, it is possible to provide a washing apparatus capable of easily and properly collecting dust washed away from an object to be washed.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

FIG. 1 is a schematic side view showing the internal structure of a cleaning device according to an embodiment of the invention. 2 is a schematic enlarged view of the first cleaning section shown in FIG. 1. FIG. 3 is a schematic plan view of the first cleaning section shown in FIG. 1. FIG. 4 is a schematic cross-sectional view of the first cleaning section shown in FIG. 1. FIG. 5 is a perspective view of the filter shown in FIG. 1. FIG.

<Embodiment>
Hereinafter, a cleaning device 1 according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the cleaning apparatus 1 is an apparatus for cleaning an object P to be cleaned with cleaning water while conveying the object P by a conveyor 20 (conveying section).

<Overall Configuration of Cleaning Apparatus 1>
The cleaning apparatus 1 includes a first cleaning unit 11 that roughly cleans an object P to be cleaned, a second cleaning unit 12 that cleans the object P that has been cleaned by the first cleaning unit 11, and a second cleaning unit 12 that cleans the object P. and a third cleaning part 13 for rinsing and cleaning the cleaned object P. The first cleaning unit 11, the second cleaning unit 12, and the third cleaning unit 13 are arranged along the conveying direction (see arrow Y1 in FIG. 1) in which the objects to be cleaned P are conveyed by the conveyor 20. They are arranged in order from 2. As the objects to be washed P to be washed by the washing device 1, tableware such as plates and trays, and cooking utensils such as hotel pans can be assumed.

The conveyor 20 is a device that conveys the objects P to be cleaned from the entrance 2 of the cleaning device 1 into which the objects P to be cleaned are carried in toward the exit 3 from which the objects P to be cleaned are carried out. The washing device 1 is equipped with an inlet 2 provided on the outer wall (not shown) of the housing of the washing device 1 to wash the washed objects P, while the washed objects P are pushed through the outer wall of the housing of the washing device 1. A conveying passage 4 is formed for conveying until it is discharged from an outlet 3 provided at the bottom. The conveying path 4 is a path through which the objects to be cleaned P pass continuously from the first cleaning section 11 to the third cleaning section 13 described above.

The conveyor 20 includes a chain belt 21 that moves from the entrance 2 to the exit 3 of the cleaning device 1 (specifically, the conveying passage 4) while placing the object to be cleaned P thereon, a driven roller 22 around which the chain belt 21 is wound, and A driving roller 23 is provided. The drive roller 23 is connected to a drive motor (not shown) via a drive belt (not shown).

With this configuration, when the drive motor is driven, the drive roller 23 rotates through the drive belt, and the chain belt 21 wound around the drive roller 23 rotates the driven roller 22 while moving through the conveying path 4. Moving. Thereby, the object to be cleaned P placed on the chain belt 21 can be transported in the transport passage 4 from the first cleaning section 11 to the third cleaning section 13 . In addition, the to-be-washed object P may be washed using a tableware basket.

The first washing section 11 is a section for roughly washing the object P to be washed so as to wash away the garbage R such as leftovers attached to the object P conveyed by the conveyor 20 from the inlet 2 of the washing apparatus 1 with washing water. is. The first cleaning unit 11 includes a cleaning nozzle 61 that sprays cleaning water onto the object P conveyed by the conveyor 20 .

In addition, although one first cleaning unit 11 is provided in the cleaning apparatus 1 in the present embodiment, a plurality of first cleaning units 11 may be provided along the conveying direction of the conveyor 20 .

The cleaning nozzle 61 may be composed of, for example, an upper cleaning nozzle and a lower cleaning nozzle that spray cleaning water from above and below the object P to be cleaned. In this case, the upper cleaning nozzle is arranged above the transport area for transporting the object P to be cleaned, and arranged so as to jet the cleaning water downward toward the object P to be cleaned. On the other hand, the lower cleaning nozzle is arranged below the transport area in which the object P to be cleaned moves, and is arranged so as to spray the cleaning water upward toward the object P to be cleaned. In this embodiment, a curtain-like wash water is jetted from the injection port (not shown) of the washing nozzle 61 .

The first washing unit 11 further includes a washing tank 38 that collects the washing water discharged from the washing nozzles 61 and stores the collected washing water. In the cleaning device 1 according to the present embodiment, the first cleaning unit 11 is provided with a recovery unit 30 that recovers the cleaning water discharged from the cleaning nozzle 61 and the dust R washed away from the object P to be cleaned. The collection unit 30 includes a filter 31 below the washing nozzle 61 for collecting the dust R washed away from the object P to be washed.

When cleaning water (water) is supplied to the cleaning tank 38 at the start of cleaning, for example, it is supplied from the cleaning tank 47 of the third cleaning section 13 to be described later via the cleaning tank 47 of the second cleaning section 12 to the first cleaning section. 11 may be supplied with cleaning water (water), and each cleaning tank 47 may be supplied with tap water.

In this embodiment, the first cleaning unit 11 is provided with a device for collecting the dust R of a suction type described below. Specifically, as shown in FIGS. 1 to 2 and 4, a filter 31 (so-called strainer) is arranged between the cleaning nozzle 61 and the cleaning tank 38. FIG. The filter 31 is attached to the cleaning tank 38 so as to block the upper opening of the cleaning tank 38 .

As shown in FIG. 5, the filter 31 is provided with a groove portion 34 in which a portion of the flat plate-like body portion 32 is recessed downward. The groove portion 34 has a bottom surface 35a formed of a plate member at the groove bottom 35. As shown in FIG. A bottom surface 35a of the groove bottom 35 is provided with a suction port 36 for sucking the dust R washed away from the object P to be cleaned. The suction port 36 is arranged so as to be submerged in the cleaning water stored in the cleaning tank 38 . In other words, the cleaning water is flooded in the grooves 34 .

As shown in FIG. 4, the water level WS of the cleaning water in the groove 34 is equal to the water level WS of the cleaning tank 38 . As will be described later, the water level WS in the groove 34 is preferably high enough to cause the discharge mechanism 42 to generate negative pressure and suck the dust R from the suction port 36 . For example, if the water level WS is too high, the dust R collected in the groove 34 will flow and spread to a position away from the suction port 36 (a position where the suction force does not reach) and stay or float. , it is difficult to properly collect the dust R. Conversely, if the water level WS is too low, the cleaning water around the suction port 36 may be completely absorbed, making it difficult to stably apply the negative pressure generated by the ejection mechanism 42 to the suction port 36 . This makes it difficult to stably (continuously) suck the dust R from the suction port 36 . Therefore, the water level WS in the groove portion 34 is appropriately set so that the dust R can be sucked.

Further, the filter 31 is formed with an inclined surface 37 so as to connect the surface of the body portion 32 and the bottom surface 35a. The inclined surface 37 is an inner wall surface of the groove portion 34 and is inclined downward from the main body portion 32 toward the groove bottom 35 .

The filter 31 has a mesh structure (that is, the filter 31 has a mesh structure in which a plurality of metal wires are woven together) except for the bottom surface 35a, and the mesh structure provides through holes 33 through which washing water can pass. defined. Specifically, the mesh portion of the mesh structure serves as the through hole 33 . The size of the opening area of the through holes 33 is determined by the size of the mesh. As for the size of the mesh, the number of wires per inch is preferably 20 or more and 50 or less, and the wire diameter of the wire is preferably 0.18 mm or more and 0.5 mm or less. However, the size of the mesh (that is, the opening area of the through-holes 33) is limited to a size that does not allow fine dust R (that is, leftovers) such as ground sesame and hijiki to pass through the through-holes 33. not to be

A bottom surface 35a of the groove bottom 35 is composed of a plate-like member that does not allow washing water to pass therethrough. That is, the filter 31 does not have a mesh structure (that is, the through holes 33) on the bottom surface 35a, as described above. This makes it easier to collect the dust R washed away from the object to be cleaned P into the suction port 36 when collecting the dust R, which will be described later. Note that the plate-like member is not limited to a flat surface.

In this embodiment, the cleaning tank 38 of the first cleaning unit 11 may be provided with a heating device that heats the cleaning water at a constant set temperature.

Furthermore, in the present embodiment, the first cleaning unit 11 includes a pressure feed pump 41 that pressure-feeds the cleaning water stored in the cleaning tank 38 to the cleaning nozzle 61 . As a result, the cleaning water is sprayed onto the object P to be cleaned in the first cleaning unit 11, the sprayed cleaning water is recovered in the cleaning tank 38, the recovered cleaning water is sprayed onto the object P to be cleaned again, and the cleaning water is removed. Can be reused.

Further, the recovery unit 30 includes a discharge mechanism 42 that generates a negative pressure, a suction pipe 43 that sucks the dust R collected in the groove 34 , and a pipe 48 on the downstream side of the pressure feed pump 41 and the discharge mechanism 42 . and a discharge pipe 44 arranged in and connected to both. The suction tube 43 is arranged between the filter 31 and the ejection mechanism 42 and connected to both. A method of generating the negative pressure will be described later.

Furthermore, the collection unit 30 includes a collection basket 39 a for collecting the dust R sucked from the suction port 36 outside the housing (not shown) of the cleaning device 1 . The collection basket 39a has the same mesh structure (through holes 33) as the filter 31, and the dust R sucked from the filter 31 is discharged (discharged) together with the washing water via the discharge mechanism 42. FIG. As shown in FIG. 2, the collection basket 39a is accommodated in a garbage collection tank 39 in which washing water is stored. In this embodiment, the garbage collection tank 39 is arranged outside the housing of the washing device 1, like the collection basket 39a.

Furthermore, the collection unit 30 is provided with an electrode-type or float-type detection unit 39b for detecting the collected dust R. As shown in FIG. The detection part 39b is arranged so as to hang downward from the inner surface of the lid part 39c provided in the collection part 30 toward the inside of the collection basket 39a. Then, the detection unit 39b can detect an increase in the water level in the collection basket 39a or an accumulation of the dust R at a predetermined height. can be controlled so as to notify the exchange of the collection basket 39a to the At this time, by controlling the pressure feed pump 41 of the first washing section 11 to stop, the replacement work of the collection basket 39a can be performed more safely.

Further, the collection unit 30 is provided with a discharge pipe 46 for discharging the sucked dust R into the collection basket 39a and a return pipe 45 for sending the washing water stored in the dust collection tank 39 to the washing tank 38. It is The discharge pipe 46 is arranged between the collection basket 39 a and the discharge mechanism 42 , and the return pipe 45 is arranged between the cleaning tank 38 and the dust collection tank 39 .

The second cleaning section 12 is a section that cleans the article to be cleaned P conveyed by the conveyor 20 from the first cleaning section 11 so as to wash off the dirt adhering to the article to be cleaned P with cleaning water. The second cleaning section 12 includes cleaning nozzles 61 for spraying cleaning water onto the objects to be cleaned P conveyed by the conveyor 20 , similarly to the first cleaning section 11 . Since these configurations are the same as those of the first cleaning unit 11, detailed description thereof will be omitted.

The second washing unit 12 has a washing tank 47 below the washing nozzle 61 that collects the washing water discharged from the washing nozzle 61 and stores the collected washing water. When supplying cleaning water (water) to the cleaning tank 47 at the start of cleaning, for example, the cleaning water (water) is supplied from the cleaning tank 47 of the third cleaning section 13 to the cleaning tank 47 of the second cleaning section 12, which will be described later. Alternatively, clean water may be supplied to the cleaning tank 47 of the third cleaning unit 13 .

In the cleaning tank 47, a plurality of detergent supply devices (not shown) for supplying detergent to the stored cleaning water and a heating device (not shown) for heating the stored cleaning water with electricity or steam are arranged. . The cleaning tank 47 is provided with a number of detergent supply devices corresponding to at least the types of detergents and bleaches used.

Further, the cleaning tank 47 has a temperature measuring device (not shown) for measuring the temperature of the stored cleaning water, and a concentration measuring device (not shown) for measuring the concentration of detergent contained in the cleaning water stored in the cleaning tank 47. omitted) may be arranged. Furthermore, a control device (control unit) may be provided for controlling the temperature of the wash water using these devices and for controlling the concentration of the detergent contained in the wash water. Furthermore, in this embodiment, one second cleaning unit 12 is provided in the cleaning apparatus 1 , but a plurality of second cleaning units 12 may be provided along the conveying direction of the conveyor 20 .

Furthermore, in the present embodiment, the second cleaning section 12 includes a pressure-feeding pump 41 that pressure-feeds the cleaning water stored in the cleaning tank 47 to the cleaning nozzle 61 . As a result, the washing water containing the detergent is sprayed onto the objects P to be washed, the sprayed washing water is collected in the washing tank 47, and the collected washing water is sprayed onto the objects P sequentially conveyed by the conveyor 20. can be done. In this embodiment, the pressure pump 41 is provided in the second cleaning unit 12 and the pressure pump 41 and the cleaning nozzle 61 are connected via a connecting pipe so as to pressure-feed the cleaning water to the cleaning nozzle 61 .

The third washing unit 13 rinses the object P conveyed by the conveyor 20 from the second washing unit 12 and washing the object P after being washed with the detergent, etc., with washing water for rinsing. section. Furthermore, the third washing section 13 is also a section for final washing of the objects P to be washed in order to wash away the washing water adhering to the objects P after rinsing with clean water, which is clean water.

The third washing unit 13 has a washing tank 47 below the washing nozzle 61 that collects the washing water discharged from the washing nozzle 61 and stores the collected washing water. Furthermore, the third cleaning section 13 includes a pressure-feeding pump 41 that pressure-feeds the cleaning water stored in the cleaning tank 47 to the cleaning nozzle 61 . The washing water collected in the washing tank 47 is reused.

A heating device (not shown) for heating the stored cleaning water and a temperature measuring device (not shown) for measuring the temperature of the stored cleaning water are arranged in the cleaning tank 47 of the third cleaning unit 13 . be. Furthermore, a control device (control unit) may be provided for controlling the temperature of washing water using these devices. Furthermore, in this embodiment, one third cleaning section 13 is provided in the cleaning apparatus 1 , but a plurality of third cleaning sections 13 may be provided along the conveying direction of the conveyor 20 .

<Method of collecting dust R in cleaning device 1>
In the present embodiment, multiple stages of cleaning are performed while the object P to be cleaned is transported in the transport direction. Here, collection of the dust R in the first cleaning section 11 that performs cleaning in the first stage will be described. As shown in FIG. 4, the washing water sprayed from the washing nozzle 61 toward the object to be washed P in a curtain shape is sprayed on the object to be washed P, and then flows down toward the collection unit 30 (arrow Y6 in FIG. 4). reference).

The washing water that has flowed down toward the recovery unit 30 flows through the through hole 33 of the filter 31 toward the washing tank 38 (see arrow Y8 in FIG. 4), and flows over the body portion 32 toward the groove portion 34 (see arrow Y8 in FIG. 4). 4) and (see arrow Y4 in FIG. 4). In addition, the washing water that flows down toward the collection unit 30 is mixed with garbage R such as leftover food that has been washed away from the object P to be washed. In other words, since the filter 31 has a mesh structure in other portions except for the bottom surface 35a (that is, it is configured so that fine dust R such as ground sesame seeds and hijiki seaweed does not pass through the through holes 33), dust The R is collected from the body portion 32 into the groove portion 34 by the flow of the cleaning water toward the groove portion 34 .

Here, the washing water flowing over the main body part 32 may spread out and flow out of the recovery part 30 . For this reason, a guide portion 50 is provided in the collecting portion 30 as shown in FIG. The guide portion 50 includes a support portion 51 extending from the upstream side toward the downstream side of the washing water flowing over the main body portion 32 (in the vertical direction of the paper surface), and fins that guide the washing water flowing over the main body portion 32 to the groove portion 34. 52 and are configured integrally. As a result, even if the washing water flows out of the recovery section 30, it is guided onto the main body section 32 and particularly toward the groove section 34 by the guide section 50 (see arrow Y4 in FIG. 3). .

As described above, even if the washing water contains dust R washed away from the object to be washed P, the collection unit 30 collects the dust R with the filter 31, separates the dust R from the washing water, and separates the dust R from the washing water. can be collected and stored in the washing tank 38.

The dust R collected in the groove 34 is sucked from the suction port 36 by generating a negative pressure from the discharge mechanism 42 . Specifically, when the washing water is pressure-fed from the pressure-feeding pump 41 toward the discharge pipe 44 and reaches the discharge mechanism 42, the water flow of the washing water pressure-fed from the pressure-feeding pump 41 by the discharge mechanism 42 is used. to generate a negative pressure in the suction tube 43 . Here, as shown in FIG. 2, the opening at the end of the discharge pipe 44 on the side of the discharge mechanism 42 is narrowed. This is because the effect of increasing the flow velocity and lowering the pressure (Bernoulli's theorem) produces a stronger negative pressure. When the negative pressure is generated in this way, the washing water and the dust R that have entered the grooves 34 are sucked at the same time. The sucked cleaning water and dust R join the cleaning water pressure-fed from the pump 41 through the discharge pipe 46 and are discharged to the collection basket 39a (see arrow Y2 in FIG. 2). Thus, in this embodiment, the dust R is collected.

Further, in this embodiment, the collection basket 39a is configured to be removable from the garbage collection tank 39. As shown in FIG. That is, by removing the collection basket 39a from the waste collection tank 39, the collected waste R can be easily disposed of. It should be noted that, when the waste R is being treated, by closing the valve 46a provided in the discharge pipe 46, the washing water and the waste R can be stopped from being discharged from the discharge pipe 46 to the collection basket 39a. Thus, in this embodiment, the collected dust R is treated.

By the way, since washing water is discharged into the garbage collection tank 39 (collection basket 39a) at the same time as the garbage R, the washing water is stored as the garbage R is collected. At this time, if the collected waste R is rice, hijiki, or the like, it is sufficiently larger than the size of the mesh and settles in the collection basket 39a. When the deposition height becomes sufficiently high, the amount of washing water passing through the mesh from the collection basket 39a decreases and the water level rises in the collection basket 39a, or the deposited rice or hijiki itself is detected by the detection unit 39b, and the operator The collection basket 39a is exchanged by .

On the other hand, in the case of fine dust such as ground sesame seeds, the water flows in from the discharge pipe 46 and outflows to the return pipe 45 floats the entire inside of the collection basket 39a with a turbulent flow, causing various forms such as floating deposition and sticking to the mesh surface. Stay. When the amount of stagnation increases, the amount of floating sedimentation and the amount of clogging the mesh surface also increase, and the amount passing through the mesh of the recovery basket 39a decreases. Then, the water level in the collection basket 39a gradually rises and is detected by the detector 39b, and the operator replaces the collection basket 39a. By providing the detection unit 39b in this manner, it is possible to prevent the waste R containing washing water from overflowing the collection basket 39a.

In addition, in this embodiment, when the dishwashing by the washing apparatus 1 is finished, a collection process may be provided for collecting the dust R remaining in the pipe inside the collection unit 30 of the first washing unit 11 . In the collection process, by repeating driving and stopping of the compressing pump 41 a plurality of times, the dust R remaining on the filter 31 and the dust R remaining in the suction pipe 43 can be collected into the collection basket 39a. For example, the operator may collect the dust R remaining on the filter 31 by gathering it in the groove portion 34 and collecting it from the suction pipe 43. Alternatively, when the pressure feed pump 41 is stopped, the pipe 48 and the cleaning nozzle may be collected. Washing water remaining in 61 returns to the washing tank 38 and the water level of the washing tank 38 rises. Since it floats and is recovered from the groove portion 34 when the compressing pump is next started, it may be recovered by repeating this action.

In addition, in this embodiment, a return pipe 45 is provided so that the cleaning water stored in the garbage collection tank 39 is also reused. Specifically, since the cleaning tank 38 and the dust collection tank 39 are connected by the return pipe 45, the water level WS of the cleaning tank 38 and the water level WS of the dust collection tank 39 are kept at the same height (Pascal's principle).

In other words, washing water is discharged from the washing tank 38 to the dust collecting tank 39 in accordance with the collection of the dust R, and the same amount of washing water as discharged to the dust collecting tank 39 is returned via the return pipe 45 to collect the dust. It is sent from the bath 39 to the cleaning bath 38 (see arrow Y3 in FIG. 2 and arrow Y3 in FIG. 3). Thus, in this embodiment, the cleaning water stored in the garbage collection tank 39 is also reused.

<Action/effect>
According to the cleaning device 1 of the present embodiment, by providing the groove portion 34 in the filter 31, the types of flow of cleaning water on the filter 31 (body portion 32) can be increased. Specifically, in the conventional cleaning apparatus, the only flow of cleaning water is through the through hole 33 of the filter 31 and toward the cleaning tank 38 (see arrow Y8 in FIG. 4). Therefore, the dust R washed away from the object to be cleaned P remains on the main body portion 32 . However, in the present embodiment, by providing the groove portion 34 in the main body portion 32, it is possible to generate a flow of washing water toward the groove portion 34 (see arrow Y4 in FIG. 4). As a result, the dust R can be collected in the groove portion 34 from above the filter 31 (body portion 32).

In addition, filter 31 has inclined surface 37 in groove 34 . As a result, it is possible to properly generate the flow of the washing water toward the groove portion 34, so that the dust R can be collected in the groove portion 34 more reliably.

Furthermore, according to the cleaning device 1 of this embodiment, the suction port 36 is arranged so as to be submerged in the cleaning water stored in the cleaning tank 38 . As a result, the cleaning water flowing into the groove 34 and the dust R collected in the groove 34 are mixed with the cleaning water in the groove 34 and smoothly discharged from the suction port 36 . is hard to remain.

Furthermore, according to the cleaning device 1 of the present embodiment, the bottom surface 35a of the groove bottom 35 is composed of a plate-like member that does not allow the cleaning water to pass therethrough. Thereby, when the dust R is sucked, the dust R collected in the groove portion 34 can be properly collected in the suction port 36 .

Further, according to the cleaning device 1 of the present embodiment, the dust R collected in the groove portion 34 is sucked by the discharge mechanism 42, and the sucked dust R is discharged (discharged) to the collection basket 39a. . As a result, the dust can be collected easily and efficiently with a simple structure.

Furthermore, according to the cleaning device 1 according to the present embodiment, the filter 31 has a mesh structure defining the through holes 33 at other locations than the bottom surface 35 a of the groove bottom 35 . As a result, even if the dust R washed away from the object to be cleaned P is fine, such as ground sesame seeds and hijiki, the through hole 33 is not clogged with the dust R, and the dust R is not clogged with the dust R, and the washing tank 38 is thus allowed to be filled with the dust. It can be easily recovered without being mixed.

Furthermore, according to the cleaning apparatus 1 according to the present embodiment, a plurality of stages of cleaning are performed while the object P to be cleaned is transported in the transport direction, and the first cleaning section 11 performs the first stage of cleaning among the plurality of stages of cleaning. conduct. As a result, it is possible to properly collect the dust R in the first stage of washing and prevent it from reattaching to the object P to be washed. In addition, the reattachment of the dust R to the object to be cleaned P transports the dust R to the second cleaning section 12 and the third cleaning section 13, which are the next steps. It is possible to suppress the contamination of the second cleaning unit 12 and the cleaning tank 47 of the third cleaning unit by the dust R being mixed therein.

<Other forms>
It should be noted that the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

For example, in the present embodiment, the body portion 32 and the groove portion 34 are configured integrally, but they may be configured separately. By separating only the body portion 32 of the filter 31 from the cleaning device 1, cleaning can be easily performed by removing only the body portion 32 of the filter 31, and the mesh of the body portion 32 (that is, the openings of the through holes 33) can be adjusted according to the dust R to be washed away. area) can be changed. The garbage R to be washed away is assumed to be, for example, leftover food that may adhere to the object to be washed P due to the menu of meals or the like.

For example, in the present embodiment, the body portion 32 is configured to be parallel to the horizontal direction, but it may be configured to be inclined toward the groove portion 34 .

For example, in the present embodiment, as a function of the ejection mechanism 42, negative pressure is generated to suck the dust R in the groove portion 34, but it is not limited to this as long as the dust R can be sucked.

For example, in the present embodiment, the collecting section 30 is provided with the guide section 50, but the guide section 50 may not be provided.

Here, the features of the embodiment of the cleaning apparatus according to the present invention described above are summarized and listed briefly in [1] to [6] below.
[1]
A cleaning apparatus (1) comprising a cleaning section (first cleaning section 11) for cleaning an object (P) to be cleaned with cleaning water, and a recovery section (30) provided in the cleaning section,
The recovery unit (30)
collecting dust (R) washed away from the object to be washed by the washing;
Having a filter (31) provided with a through hole (33) through which the washing water can pass,
The filter (31) is
A groove (34) recessed downward in the vertical direction in the installation posture of the cleaning device (1) is provided in a part of the filter (31),
A suction port (36) for sucking the dust is provided in the groove bottom (35) of the groove,
A cleaning device (1).
[2]
In the cleaning device (1) according to [1] above,
The cleaning unit is
further comprising a cleaning tank (38) capable of collecting and storing the cleaning water that has passed through the through hole (33);
The suction port (36) is
arranged to be submerged in the wash water stored in the wash tank (38);
A cleaning device (1).
[3]
In the cleaning apparatus (1) according to [1] or [2] above,
The groove (34) is
The bottom surface (35a) of the groove bottom (35) is composed of a plate-like member that does not allow the washing water to pass through,
The bottom surface (35a) is provided with the suction port (36),
A cleaning device (1).
[4]
In the cleaning apparatus (1) according to any one of [1] to [3] above,
The recovery unit (30)
a collection basket (39a) for collecting the dust sucked from the suction port (36);
a discharge mechanism for sucking dust into the collection basket (39a);
A cleaning device (1).
[5]
In the cleaning apparatus (1) according to any one of [1] to [4] above,
The filter (31) is
The groove bottom (35) has a mesh structure other than the bottom surface (35a),
A cleaning device (1).
[6]
In the cleaning apparatus (1) according to any one of [1] to [5] above,
washing the object to be washed (P) in a plurality of washing units while conveying the object (P) in the conveying direction;
The recovery unit (30)
provided in the first cleaning unit among the plurality of cleaning units,
A cleaning device (1).

Reference Signs List 1 cleaning device 11 first cleaning unit 12 second cleaning unit 13 third cleaning unit 20 conveyor 30 recovery unit 31 filter 32 main body 33 through hole 34 groove 35 groove bottom 35a bottom surface 36 suction port 38 cleaning tank 39 recovery tank 39a recovery basket 39b detection part 39c cover part 41 pressure feed pump 42 discharge mechanism 50 guide part 51 support part 52 fin 61 washing nozzle P object to be washed R dust

Claims (6)

A cleaning apparatus comprising a cleaning section for cleaning an object to be cleaned with cleaning water and a recovery section provided in the cleaning section,
The recovery unit is
collecting dust washed away from the object to be washed by the washing;
having a filter provided with a through-hole through which the washing water can pass;
The filter is
A groove recessed downward in the vertical direction in the installation posture of the cleaning device is provided in a part of the filter,
A suction port for sucking the dust is provided at the groove bottom of the groove,
cleaning equipment. The cleaning device according to claim 1,
The cleaning unit is
further comprising a cleaning tank capable of collecting and storing the cleaning water that has passed through the through-hole;
The suction port is
arranged so as to be submerged in the cleaning water stored in the cleaning tank;
cleaning equipment. In the cleaning device according to claim 1 or claim 2,
The groove is
The bottom surface of the groove bottom is composed of a plate-like member that does not allow the washing water to pass through,
The bottom surface is provided with the suction port,
cleaning equipment. In the cleaning device according to any one of claims 1 to 3,
The recovery unit is
a collection basket for collecting the dust sucked from the suction port;
and a discharge mechanism for sucking dust into the collection basket,
cleaning equipment. In the cleaning device according to any one of claims 1 to 4,
The filter is
Having a mesh structure in other places except the bottom of the groove bottom,
cleaning equipment. In the cleaning device according to any one of claims 1 to 5,
washing the object to be washed by the plurality of washing units while conveying the object to be washed in the conveying direction;
The recovery unit is
provided in the first cleaning unit among the plurality of cleaning units,
cleaning equipment.

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