JP6998644B2 - Dishwashing equipment and dishwashing method - Google Patents

Description

The present invention relates to a dishwashing apparatus and a dishwashing method.

A dishwashing device for washing a large amount of tableware is known (Patent Document 1). In the tableware washing method and tableware storage device described in Patent Document 1, a plurality of horizontally stacked tableware are sequentially sprayed from a nozzle along the stacking direction of the tableware, and the dishes are in contact with each other. It is disclosed that adjacent dishes are separated from each other, and a plurality of dishes are sequentially washed by the flow of washing water flowing into the separated intervals to surely and efficiently remove stains on the dishes.

Japanese Unexamined Patent Publication No. 2008-173258

In the technique described in Patent Document 1, it is possible to spray washing water (liquid) on the tableware to remove most of the stains adhering to the tableware, but there is a problem that even the sticky stains cannot be removed. rice field.

It is an object of the present invention to provide a dishwashing device and a dishwashing method for surely removing stains adhering to tableware.

The dishwashing device of the present invention includes a transport device for transporting tableware, a dipping tank for immersing the tableware transported by the transport device in the dipping liquid, and the transport device while being immersed in the dipping liquid of the dipping tank. It is provided with an injection device for injecting a cleaning liquid onto the tableware conveyed by.

As one aspect of the dishwashing apparatus of the present invention, for example, at least a part of the transport device includes a concave portion recessed from a predetermined reference surface toward the bottom of the immersion tank so as to enter the inside of the immersion tank.

As one aspect of the dishwashing device of the present invention, for example, the transfer device includes a belt-shaped transfer conveyor arranged along the predetermined reference surface and the concave portion on which dishes are placed, and the injection device includes the injection device. It is arranged above the concave portion.

As one aspect of the dishwashing apparatus of the present invention, for example, the concave portion includes a first inclined portion that carries the tableware from the predetermined reference surface toward a flat surface portion that forms a part of the bottom portion, and the flat surface portion. A nozzle of the injection device for injecting the cleaning liquid is provided above the flat surface portion and the second inclined portion, including a second inclined portion carried from the surface to the predetermined reference plane.

The tableware washing method of the present invention is a tableware washing method using the tableware washing device, in which a plurality of tableware are stored in a tableware basket in a state of being stacked, and the main surface to be washed of the tableware in the tableware basket is. The dishes are washed while the dishes are being conveyed in a state of being substantially parallel to the transfer direction by the transfer device and substantially parallel to the direction of injection of the cleaning liquid from the injection device.

As one aspect of the dishwashing method of the present invention, for example, the dishes stored in the tableware basket are conveyed while being partially immersed in the immersion liquid in the immersion tank.

In the dishwashing device of the present invention, since the washing liquid is sprayed from the jetting device in a state where the tableware is immersed, it is possible to wash and wash off the dirt stuck to the tableware while softening it. In addition, by immersing the tableware, it becomes easier to open a space between the tableware stacked by the force of buoyancy, so that the cleaning liquid easily hits the surface of the tableware, and dirt can be removed without applying excessive force. improves. Further, the dirt that has flowed down the tableware can be easily separated from the tableware, and the dirt can be separated smoothly. Further, according to the dishwashing method of the present invention, the main surface to be washed of the tableware is washed by a method in which the spraying direction of the washing liquid coincides with the transporting direction of the tableware, so that the stains on the tableware are surely washed.

The cross-sectional schematic diagram which shows an example of the dishwashing apparatus which concerns on this invention. The front view which shows an example of the dishwashing apparatus which concerns on this invention. The right side view of FIG. 2 which shows an example of the dishwashing apparatus which concerns on this invention. The plan view of FIG. 2 which shows an example of the dishwashing apparatus which concerns on this invention. (A) A perspective view showing an example of a tableware basket and a storage state of tableware of the tableware washing device according to the present invention, (b) a conceptual diagram showing an example of an arrangement of tableware in the tableware basket, (c) a washing state of circular tableware. Schematic diagram showing. The perspective view of the nozzle substrate of the dishwashing apparatus which concerns on this invention. The conceptual diagram which shows an example of the arrangement of the nozzle substrate and the nozzle with respect to the tableware transport direction of the dishwashing apparatus which concerns on this invention. The cross-sectional schematic diagram which shows the specific example of the rough cleaning process of the dishwashing apparatus which concerns on this invention. The plan perspective view of FIG. It is an example of moving the nozzle substrate of the dishwashing apparatus which concerns on this invention, and is the side sectional schematic diagram which shows the state when the cam is 0 °. FIG. 5 is a schematic side sectional view showing a state when the cam is 45 ° following FIG. FIG. 11 is a schematic side sectional view showing a state when the cam is 90 ° following FIG.

Hereinafter, preferred embodiments of the dishwashing apparatus and the dishwashing method according to the present invention will be described in detail with reference to FIGS. 1 to 12.

1 is a schematic cross-sectional view showing an example of a dishwashing device, FIG. 2 is a front view of the dishwashing device, FIG. 3 is a right side view of FIG. 2, and FIG. 4 is a plan view of FIG. The dishwashing apparatus will be described in detail with reference to FIGS. 1 to 4.

The dishwashing device 1 of the present embodiment includes a transport device 10, a dipping tank 20, an injection device 30, a washing chamber 40, and a machine room 50. The tableware washing device 1 transports a plurality of tableware 3 stacked on the tableware basket 2 by the transport device 10, immerses the tableware 3 in the dipping tank 20 while transporting, and cleans the tableware 3 by the injection device 30.

The transport device 10 includes a transport conveyor 11 that traverses the left-right direction in the dishwashing device 1 as viewed from the front, a drive pulley 12 that rotates the transport conveyor 11 in a predetermined direction and is rotated by driving a drive unit (not shown), and a drive pulley. It is provided with a tail roller 13 provided at the other end of the conveyor 11 corresponding to 12. Although the head drive type has been described, a center drive type in which the drive pulley and the drive unit are independent may be used. In the present embodiment, the belt-shaped transfer conveyor 11 is taken as an example, but the transfer conveyor 11 is for placing the tableware basket 2 for storing the tableware 3 and transporting it in a predetermined direction, and the belt conveyor, the chain conveyor, and the like. A roller conveyor or the like may be adopted.

The immersion tank 20 is provided in the rough cleaning step 100 for partially or wholly immersing the tableware 3 stored in the tableware basket 2 in the immersion liquid S, and includes a bottom portion 21 and a concave portion 22. Further, the concave portion 22 has a shape in which at least a part of the transport conveyor 11 is recessed from a predetermined reference surface 23 (see the broken line in the figure) toward the bottom portion 21 so as to enter the inside of the immersion tank 20, and the bottom portion 21 is formed. A flat surface portion 22a constituting a part of the above, a first inclined portion 22b for carrying the tableware 3 toward the flat surface portion 22a, and a second inclined portion for carrying the tableware 3 from the flat surface portion 22a toward a predetermined reference surface 23. It has a portion 22c.

The conveyor 11 of the conveyor 10 is arranged along the predetermined reference surface 23 and the concave portion 22. Further, a tank strainer 25 for collecting dust contained in the cleaning liquid drained from the immersion tank 20 and a cleaning water recovery tank 26 are provided below the flat surface portion 22a.

The injection device 30 is arranged in a washing chamber 40 provided in the upper part of the tableware 3 conveyed by the conveyor 11. Further, the injection device 30 includes a plurality of nozzle substrates 31, a support pipe 32 for supporting the nozzle substrate 31, and a first water pipe 33 for fixing the support pipe 32. Three nozzle boards 31 are arranged in a direction substantially orthogonal to the transport direction of the tableware basket 2 (arrow A in FIG. 7), and these three nozzle boards 31 are arranged along the transport direction of the tableware basket 2. Two columns are arranged in parallel. The plurality of nozzle substrates 31 arranged in the two rows are fixed to the first water pipe 33 in a staggered manner via the support pipe 32. The details of the injection device 30 will be described later. Further, in the machine room 50, a nozzle driving unit 60, which will be described later, is arranged to drive the nozzle substrate 31 in the left-right direction.

The cleaning chamber 40 and the machine chamber 50 are separated by a top plate 4, and the cleaning chamber 40 and the machine chamber 50 are shielded from each other so that the nozzle drive unit 60 does not interfere with the steam generated in the cleaning chamber 40.

Further, in the dishwashing device 1 of the present embodiment, in order from the right side to the left side of the drawing, in order to efficiently wash the tableware 3, the tableware 3 is immersed in the dipping tank 20 and the cleaning liquid is sprayed by the injection device 30. After the cleaning step 100 and the rough cleaning step 100, the main cleaning step 101 in which the cleaning liquid is sprayed onto the tableware 3, the rinse cleaning step 102 in which the cleaning liquid is further sprayed onto the tableware 3 after the main cleaning step 101, and the rinse cleaning step. After 102, a finish cleaning step 103 provided with an injection unit 30a of an injection device 30 for injecting clean water from above and below the tableware 3 is arranged.

A plurality of injection devices 30 provided with nozzle substrates 31 are arranged in each process, but the number and arrangement positions of nozzle substrates 31 are not limited to this embodiment and are appropriately determined in consideration of cleaning efficiency and the like. It is possible to select.

Dishwashing detergent may be used during the process. The detergent is mainly used in the rough cleaning step 100 and the main cleaning step 101. Further, it is desirable that hot water is usually used as the cleaning liquid used in the rough cleaning step 100, the main cleaning step 101, and the rinsing cleaning step 102, and the cleaning liquid temperature is sequentially increased in order of the process to sterilize the tableware 3.

As shown in FIG. 2, the dishwashing device 1 is entirely imaged by a housing 5 having a substantially rectangular shape, and a slot 6 for loading the tableware 3 into the dishwashing device 1 is provided at one end in the longitudinal direction. The other end is provided with an outlet 7 for taking out the tableware 3 from the dishwashing device 1. The conveyor 11 that moves in the dishwashing device 1 is arranged along the longitudinal direction of the dishwashing device 1, and sequentially conveys the tableware 3 to the four steps 100, 101, 102, and 103 described above.

5A and 5B are examples showing the storage state of the tableware 3, where FIG. 5A is a conceptual diagram of the tableware basket 2 and the tableware 3 to be stored, and FIG. 5B is a conceptual diagram illustrating the arrangement of the tableware basket 2 and the tableware 3. c) is a conceptual diagram showing an example of the circular tableware 3.

The tableware basket 2 of the present embodiment is a substantially square container having an opening at the upper side, and stores a plurality of tableware 3 in a state of being arranged in two rows and overlapping in the horizontal direction (see FIG. 5A). Further, the tableware basket 2 is designed so that the stacking direction of the plurality of stored tableware 3 is directed to a direction substantially orthogonal to the transport direction of the tableware basket 2. Further, the tableware 3 is stored in the tableware basket 2 while maintaining a predetermined interval d with respect to the end face of the tableware basket 2 (see FIG. 5B). By providing the interval d, while the plurality of tableware 3 stored in the tableware basket 2 is being conveyed to the transfer conveyor 11, the cleaning liquid ejected from the nozzle substrate 31 of the injection device 30 is superposed on the adjacent tableware. The cleaning efficiency is improved by entering in order while keeping the space 3 and the tableware 3 apart. Although it has been explained that the tableware 3 is arranged in two rows, the tableware 3 may be arranged in one row or three rows, and is not limited to the arrangement.

Further, when the tableware 3 is circular as shown in FIG. 5 (c), the tableware is provided by a plurality of support rods 2a provided in the tableware basket 2 and which are made of round bars having a smooth surface and resin processing on the surface. The edge of 3 is slidably supported. Therefore, the tableware 3 is intermittently rotated (arrow B) while moving in the transport direction (arrow A) due to the force of the cleaning liquid ejected from the nozzle substrate 31. That is, the cleaning liquid hits from one end of the tableware 3, gradually hits the center of the tableware 3, and then hits the other end. As the tableware 3 rotates, the contact position of the cleaning liquid changes, and the dirt adhering to the tableware 3 can be washed evenly. If it can be rotated, it is not limited to a circular shape.

FIG. 6 is a perspective view showing an example of the nozzle substrate 31. The nozzle substrate 31 is a trapezoid body having a substantially trapezoidal cross section with a narrow tip, and a plurality of nozzles 31a for ejecting a cleaning liquid are provided at the tip. Inside the nozzle substrate 31, a plurality of long linear holes having a small diameter are formed, and by communicating each hole with the nozzle 31a, the cleaning liquid ejected from each nozzle 31a suppresses the spread. It is made to be ejected in the state. In the present embodiment, the nozzles 31a are arranged in a straight line along the longitudinal direction of the nozzle substrate 31, but the arrangement is not limited to this.

FIG. 7 is a conceptual diagram showing an arrangement state of the nozzle substrate 31 and the tableware 3. A plurality of dishes 3 arranged in a direction substantially orthogonal to the transport direction are arranged in two rows in parallel along the transport direction, with one nozzle substrate row 31A on the upstream side in the transport direction and the downstream side in the transport direction. The other nozzle substrate row 31B is used. In one nozzle substrate row 31A and the other nozzle substrate row 31B, the arrangement of the nozzles 31a is parallel to the transport direction (arrow A) of the plurality of tableware 3 housed in the tableware basket 2. Multiple staggered patterns are arranged above. That is, the nozzle substrates 31 in one nozzle substrate row 31A and the other nozzle substrate row 31B are arranged at different positions along the transport direction of the tableware 3 so that the cleaning liquid hits the tableware 3 evenly. .. Further, the nozzle substrate 31 is provided so as to be driveable (direction arrow C in the drawing) in a direction substantially orthogonal to the transport direction of the tableware 3 so that the individual tableware 3 can be washed efficiently.

Among the overlapping tableware 3, the arrangement of the nozzles 31a is substantially parallel to the transport direction of the tableware 3, and the movement of each nozzle substrate 31 is substantially orthogonal to the transport direction of the tableware 3. The cleaning liquid is sprayed to the bottom of the tableware 3 so as to sequentially separate the adjacent tableware and the tableware, and the stain removal is improved. Further, as described with reference to FIG. 5B, since a predetermined distance d is maintained with respect to the end face of the tableware basket 2, the adjacent tableware 3 and the tableware 3 are easily separated by the water pressure of the cleaning liquid. ing. The nozzle substrates 31 are arranged in a staggered pattern, and the range in which one nozzle substrate row 31A moves with respect to the transport direction of the tableware 3 and the other nozzle substrate row 31B with respect to the transport direction of the tableware 3. Since the range of movement is set to a different range, the individual tableware 3 can be washed evenly.

FIG. 8 is a schematic cross-sectional view showing a washing state of the tableware 3 in the rough washing step 100, and FIG. 9 is a plan perspective view of FIG.

The tableware 3 carried into the tableware washing device 1 is stored in the tableware basket 2, placed on the transport conveyor 11, and first transported to the rough washing step 100. In the rough cleaning step 100 region, the injection device 30 is arranged above the concave portion 22, and the cleaning liquid is evenly injected onto each tableware 3. Therefore, the nozzle 31a of the nozzle substrate 31 for injecting the cleaning liquid is the flat surface portion 22a. And above the second inclined portion 22c.

Although the nozzle 31a of the nozzle substrate 31 is not provided above the first inclined portion 22b in the present embodiment, it is provided in the same manner as the flat surface portion 22a and the second inclined portion 22c so that the cleaning liquid is sprayed onto each tableware 3. You may do so.

The injection device 30 is attached to a beam 51 extending in a direction (width direction) substantially orthogonal to the transport direction (arrow A) of the tableware 3 provided in the machine room 50. The nozzle drive unit 60 arranged in the machine chamber 50 includes a moving mechanism 61 for moving the nozzle substrate 31 and a driving unit such as a motor (not shown) for driving the moving mechanism 61. The moving mechanism 61 is a driving unit. A rotating shaft 62 that transmits drive from the It has a contact plate 64. The rotation shaft 62 is rotatably attached to the upper part of the beam 51. In the nozzle drive unit 60, the drive unit and the rotation shaft 62 may rotate not only one cam but also a plurality of cams at the same time.

In the dipping tank 20 provided in the rough washing step 100, for example, the dipping liquid S is stored in the concave portion 22 to a depth sufficient to immerse the tableware 3 to be washed by about half. The tableware 3 stored in the tableware basket 2 conveyed to the conveyor 11 is immersed in the dipping liquid S of the concave portion 22 to soak the dirt stuck to the tableware 3. The tableware 3 is located above the tableware 3 in a soaked state, and the cleaning liquid is sprayed from a plurality of nozzles 31a provided on the nozzle substrate 31 of the injection device 30. A plurality of slit-shaped discharge ports 22d are formed in the vicinity of the lower portion of the nozzle substrate 31 at the bottom 21 of the immersion tank 20 along the width direction of the conveyor 11. The cleaning liquid sprayed from the nozzle 31a toward the tableware 3 cleans the dirt adhering to the tableware 3 from the tableware 3 and flushes it below the tableware 3, that is, to the bottom 21 of the immersion tank 20. The dust dropped from the tableware 3 in the immersion tank 20 is collected by the tank strainer 25 through the discharge port 22d before being diffused to the entire immersion tank 20, and the cleaning liquid from which the dust has been removed collects the cleaning water. Water is stored in the tank 26. After that, the cleaning liquid is pumped to the nozzle substrate 31 via a pump (not shown) and used for circulation.

The tableware 3 loaded from the charging port 6 is horizontally transported by the transport conveyor 11, but is immersed in the immersion liquid S stored in the immersion tank 20 while being tilted by the first inclined portion 22b, and is immersed in the immersion liquid S stored in the immersion tank 20 by the flat surface portion 22a. Move horizontally again. At that time, the main surface to be cleaned of the tableware 3 in the tableware basket 2 is substantially parallel to the transport direction by the transport conveyor 11 and substantially parallel to the injection direction of the cleaning liquid from the nozzle 31a of the nozzle substrate 31. Then, the tableware 3 is carried while the tableware 3 is partially immersed in the dipping liquid S, and the tableware 3 is washed. Then, the tableware basket 2 containing the tableware 3 that has been washed in the immersed state has a predetermined reference after the tableware 3 is washed with the cleaning liquid from the nozzle 31a of the nozzle substrate 31 while tilting the second inclined portion 22c. It is conveyed horizontally again on the surface 23 and moves to the main cleaning step 101.

In the rough cleaning step 100, the tableware basket 2 containing the plurality of tableware 3 loaded into the tableware washing device 1 from the charging port 6 is placed on the transport conveyor 11 and transported to the tableware 3 in the tableware basket 2. While spraying the liquid, the tableware 3 is immersed in the immersion liquid S of the immersion tank 20 for cleaning.

By spraying the cleaning liquid from the spraying device 30 in the state where the tableware 3 is immersed, the dirt sticking to the tableware 3 can be washed and washed off while being softened. Further, by immersing the tableware 3, it becomes easy to open a space between the tableware 3 and the tableware 3 by the force of buoyancy, so that the cleaning liquid easily hits the surface of the tableware 3 in the non-immersed portion and is immersed. In the portion where the cleaning liquid is not directly hit, the spraying of the cleaning liquid causes violent running water in the immersion liquid S, and the stain removal is improved without applying excessive force. Further, the dirt that has flowed down into the immersion liquid S below the tableware 3 is easily separated from the tableware 3, and the dirt is smoothly separated. If the tableware 3 is circular, it can be rotated, and the entire tableware 3 can be immersed in the dipping liquid S.

The position where the cleaning liquid hits the tableware 3 when the tableware basket 2 is horizontally transported by the flat surface portion 22a, and the position where the cleaning liquid hits the tableware 3 when the tableware basket 2 is inclined and transported by the second inclined portion 22c. Therefore, the efficiency of removing stains from the tableware 3 is improved. Further, when cleaning is performed while being transported in the horizontal direction, even if the dirt adhering to the tableware 3 is left at the lower part of the tableware 3, the direction of the cleaning liquid flowing between the tableware 3 and the tableware 3 is The change makes it easier for dirt to run off.

Further, the depth of the immersion liquid S may be adjustable according to the size and shape of the tableware 3. An appropriate immersion state can be ensured for each type of tableware 3, and the same cleaning effect can be obtained for any tableware 3.

The arrangement of the nozzle substrate 31 of the injection device 30 including the nozzle drive unit 60 and the positional relationship with the predetermined reference surface 23 with the conveyor 11 are the same in the main cleaning step 101 and the rinsing cleaning step 102. , The number of nozzle substrates 31 is not particularly limited.

10 to 12 are schematic side sectional views showing the moving state of the nozzle substrate 31 of the injection device 30 in the lateral width direction of the dishwashing device 1 as seen from the loading port 6, and FIG. 10 is a right side position (cam 0 °). , FIG. 11 is the center position (cam 45 °), and FIG. 12 is the left side position (cam 90 °). A specific example of the moving state of the nozzle substrate 31 will be described in detail with reference to FIGS. 10 to 12. The nozzle substrate 31 of the injection device 30 drawn in FIGS. 10 to 12 has one nozzle substrate row 31A composed of three nozzle substrates 31 shown every other nozzle substrate 31 at the left end and the left end. The second nozzle board 31 is shown to be parallel to two rows along the transport direction of the tableware 3 of the other nozzle board row 31B consisting of the three nozzle boards 31 shown every other. (See FIG. 7).

The injection device 30 includes the nozzle drive unit 60, the top plate 4, the nozzle substrate 31, the nozzle 31a, the support pipe 32, and the first water pipe 33, as well as the concave top plate 4a formed at the bottom of the top plate 4. , The slide shaft 34 slidably supported by the beam 51 and integrated with the first water pipe 33, the sliding valve 35 fixed to one end of the first water pipe 33, and the first water pipe 33 are connected. It has a second water pipe 36 that slides in the sliding valve 35, and a third water pipe 37 that has one end connected to the washing water recovery tank 26 and the other end connected to the second water pipe 36. Further, since the slide shaft 34 is located below the top plate 4, a concave top plate 4a is formed in which a part of the top plate 4 has a concave shape.

The cam contact plate 64 that moves in the horizontal direction while contacting the outer surface of the cam 63 in accordance with the rotation of the rotating shaft 62 of the moving mechanism 61 and the cam 63 is integrated with the first water supply pipe 33, and the cam contact plate 64 The first water supply pipe 33 moves in the horizontal direction in conjunction with the above. Further, a pair of the first water pipe 33 and the slide shaft 34 are integrally connected to the joint portion between the first water pipe 33 and the sliding valve 35 and the tip portion of the first water pipe 33 on the opposite side of the joint portion. Support plate 38 is provided. The slide shaft 34 has a through hole (not shown) formed below the cam contact plate 64, a pair of bearing portions 4b fixed to the beam 51, and a through hole formed in the concave top plate 4a (not shown). Move horizontally inside. That is, the cam contact plate 64, the slide shaft 34, and the first water pipe 33 are integrated, and each is linked with the movement of the first water pipe 33 or the cam contact plate 64.

The cam 63 is positioned in the horizontal direction (cam 0 °) (see FIG. 10). The tip F of the cam 63 and the cam contact plate 64 are in contact with each other. The filtered cleaning liquid in the cleaning water recovery tank 26 is pressure-fed from the third water pipe 37 through the second water pipe 36 to the first water pipe 33 by a pump (not shown), and one nozzle substrate row 31A and the other nozzle are pumped. A plurality of nozzles arranged in parallel as the substrate row 31B While being ejected from the nozzles 31a of the substrate 31, the cleaning liquid always presses the tip of the first water pipe 33 with water pressure in the first water pipe 33 (FIG. 10). See arrow P).

Then, when the cam 63 rotates in the direction in which the tip F of the cam 63 that has been in contact with the cam contact plate 64 rises, the pushing pressure is applied to the first water pipe 33 from the first water pipe 33 whose tip is pressed by water pressure. It is transmitted to the cam contact plate 64 integrated with 33. Then, as the cam 63 rotates, the cam contact plate 64 moves to the left side of the drawing (see arrow G in FIG. 11), which is a direction substantially orthogonal to the transport direction of the tableware 3, while abutting the side surface of the cam 63. The slide shaft 34 and the nozzle substrate 31 move to the left in conjunction with each other (see FIG. 11: cam 45 °).

As shown in FIG. 12, when the longitudinal direction of the cam 63 is positioned substantially vertically (cam 90 ° with respect to FIG. 10), the first water pipe 33 and the nozzle substrate 31 move to the leftmost side. In the movements shown in FIGS. 10 to 12, since the cam 63 is rotated by water pressure, the load on the driving unit such as the motor that drives the rotating shaft 62 is reduced, and the power consumption can be saved.

Then, the cam 63 is further rotated in the direction in which the tip F is lowered by the drive unit, and the cam contact plate 64 is drawn while the other tip side opposite to the tip F rises and comes into contact with the cam contact plate 64. The first water pipe 33, the slide shaft 34, and the nozzle substrate 31 are moved to the right side while being moved to the right side. At this time, a load for moving the first water pipe 33, which is pressed to the left by water pressure, toward the right side is applied to the drive unit. Due to the rotation of the cam 63, the cam contact plate 64 moves in a direction substantially orthogonal to the transport direction of the tableware 3 (left-right direction in the drawing), and at the same time, the nozzle substrate 31 also moves in the same direction as the cam contact plate 64.

In the present embodiment, the cam 63 is rotated counterclockwise, but it may be clockwise.

Due to the above-mentioned movement, the cleaning liquid is generated between the plurality of tableware 3 stored in the tableware basket 2 and the tableware 3 while the nozzle substrate 31 moves in a direction substantially orthogonal to the transport direction of the tableware 3. It is possible to get into the order and wash the tableware 3 surely.

Further, the movements of the plurality of arranged nozzle substrates 31 may be the same or different. For example, in FIG. 12, the nozzle substrate 31S of one nozzle substrate row 31A arranged on the front side and the nozzle substrate 31T of the other nozzle substrate row 31B arranged on the back side are abbreviated as the transport direction of the tableware 3. Overlapping may be performed within a range that allows movement in orthogonal directions. The moving range and moving order of the nozzle substrate 31 are not limited to this embodiment and can be appropriately selected in consideration of cleaning efficiency.

Further, although the rotation of the cam 63 using the water pressure of the first water pipe 33 has been described, it is also possible to move the nozzle substrate 31 by using the rotation of the cam 63 by a drive unit such as a motor. In the rough cleaning step 100 of the present embodiment, the injection device 30 located above the flat surface portion 22a and the injection device 30 located above the second inclined portion 22c share the same drive unit and the rotating shaft 62. There is. For example, the cam 63 located above the flat surface portion 22a is located at 90 ° (see FIG. 12), and the cam 63 located above the second inclined portion 22c is located at 0 ° (see FIG. 10). When the cam is rotated, the nozzle substrate 31 located above the flat surface portion 22a is moved by the drive unit, and the nozzle substrate 31 located above the second inclined portion 22c is the water pressure of the drive unit and the first water supply pipe 33. I try to move by using it. The moving means of the nozzle substrate 31 can be selected depending on the arrangement relationship of the injection device 30 and the like in each process.

When the cam 63 of the moving mechanism 61 rotates, the plurality of nozzle boards 31 move in a direction substantially orthogonal to the transport direction of the tableware 3, that is, in the width direction of the transport conveyor 11, but both ends. By moving each nozzle substrate 31 located in the above to the vicinity of the side portion of the conveyor 11, it is possible to inject the cleaning liquid over the entire area of the conveyor 11. Therefore, no matter where the tableware basket 2 is placed and transported in the width direction of the conveyor 11, the plurality of tableware 3 stored in the tableware basket 2 is washed with the adjacent tableware 3 and the tableware 3 separated from each other. can do.

The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, size, numerical value, form, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

The dishwashing apparatus and the dishwashing method according to the present invention are applicable to the field of dishwashing apparatus for surely cleaning stains on dishes.

1 Dishwashing device 2 Dishwashing basket 3 Tableware 4 Top plate 4a Concave top plate 10 Conveyor device 11 Conveyor conveyor 20 Immersion tank 21 Bottom 22 Concave part 22a Flat part 22b First inclined part 22c Second inclined part 23 Predetermined reference surface 30 Injection Equipment 31 Nozzle board 31a Nozzle 32 Support pipe 33 First water supply pipe 34 Slide shaft 35 Sliding valve 40 Cleaning room 50 Machine room 51 Beam 60 Nozzle drive unit 61 Moving mechanism 62 Rotating shaft 63 Cam 64 Cam contact plate 100 Rough cleaning process 101 Main cleaning process 102 Rinse cleaning process 103 Finish cleaning process

Claims (6)

At least, while immersing in the immersion liquid, perform a rough cleaning step by spraying the cleaning liquid and a main cleaning step by spraying the cleaning liquid, and perform cleaning while transporting a plurality of dishes stored horizontally stacked in a tableware basket. In the dishwasher
A transport device for transporting tableware stored in the tableware basket,
A dipping tank in which the tableware stored in the tableware basket transported by the transport device is partially immersed in the dipping solution, and a dipping tank.
It is provided with an injection device for injecting a cleaning liquid onto the tableware stored in the tableware basket, which is conveyed by the transfer device while being immersed in the immersion liquid of the immersion tank.
The immersion tank is provided in the rough cleaning step located in a step prior to the main cleaning step, and is recessed from a predetermined horizontal reference surface toward the bottom of the immersion tank so that the immersion liquid can be stored. Has a horizontal shape
A part of the transport device is provided with a concave portion recessed from the reference surface toward the bottom so as to enter the inside of the immersion tank.
The transport device includes a belt-shaped transport conveyor that is arranged along the predetermined reference surface and the concave portion and on which the tableware basket is placed.
The sprayer is located above the recess and above the tableware to be transported and comprises a plurality of nozzles that are aligned and eject the cleaning liquid.
The cleaning liquid ejected from the plurality of nozzles arranged in a straight line enters between the adjacent dishes and the dishes in the tableware basket, and the dishes in the unimmersed portion are washed with the cleaning liquid and immersed. Wash the dishes in the area with running water in the immersion liquid generated by the washing liquid.
At the bottom of the immersion tank, near the bottom of the plurality of nozzles, a discharge port leading to a tank strainer provided below the bottom is provided, and dust dropped from the tableware passes through the discharge port. Is collected by the tank strainer.
Dishwashing equipment. The dishwashing apparatus according to claim 1.
A dishwashing device in which a plurality of nozzles of the injection device are arranged so that the longitudinal direction arranged in a straight line is substantially parallel to the transport direction by the transport device. The dishwashing apparatus according to claim 2.
A dishwashing device in which a plurality of nozzles of the injection device are movable in a direction substantially orthogonal to the transfer direction of the transfer device. The dishwashing apparatus according to claim 2 or 3.
The plurality of nozzles of the injection device are arranged in a straight line along the longitudinal direction of the nozzle substrate.
The nozzle boards are arranged so that the arrangement of the nozzles is substantially parallel to the transport direction of the transport device, and a plurality of the nozzle boards are arranged in a direction substantially orthogonal to the transport direction of the transport device. A dishwashing device that constitutes a row of nozzle boards . The dishwashing apparatus according to any one of claims 1 to 4.
The concave portion has a first inclined portion that carries the tableware from the predetermined reference surface toward a flat surface portion forming a part of the bottom portion, and a second portion that carries the tableware from the flat surface portion toward the predetermined reference surface. A dishwashing device in which a plurality of nozzles of the injection device for injecting a cleaning liquid, including an inclined portion, are provided above the flat surface portion and the second inclined portion. A dishwashing method using the dishwashing apparatus according to any one of claims 1 to 5.
A plurality of tableware are stored in the tableware basket in a stacked state, and the main surface to be washed of the tableware in the tableware basket is substantially parallel to the transport direction by the transport device, and a plurality of nozzles of the jet device. A dishwashing method for washing dishes while transporting the tableware basket in a state where the dishes are arranged in a straight line and substantially parallel to the longitudinal direction.

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