JP5592066B2 - Tableware washing equipment - Google Patents

Description

  The present invention relates to a tableware cleaning apparatus in a situation where a relatively large amount of tableware, such as dishes, bowls, trays, etc., is used, particularly in school, hospital, etc.

  Conventionally, the following are mainly known as means for treating hot and humid air generated in a tableware washing apparatus.

  There is one that draws hot and humid air from the cleaning chamber, passes it through a condenser to remove the moisture, and then discharges it outside the cleaning device (see Patent Document 1).

A mechanical seal including at least one inlet in fluid communication between the interior of the cleaning machine and the exterior of the machine; a housing including water injection by a spray nozzle; and at least one conduit in fluid communication between the mechanical seal and the housing. An extraction means, wherein the spray nozzle is effective to create a reduced pressure area in the housing for removing hot humid atmosphere from the dishwasher through the conduit while injecting outside air into the dishwasher through the inlet. There is a dishwasher including a take-out means for supplying fresh water spray (see Patent Document 2).
JP 2005-245639 A Japanese Patent Laid-Open No. 2000-37338

  However, the device described in Patent Document 1 sucks hot and humid air whose temperature has risen from the cleaning chamber with a suction means such as a blower. However, it is difficult to suck the entire cleaning chamber uniformly. Yes, if a large amount of air is not introduced from the supply section of the tableware to the conveyor and the outlet section of the tableware and does not flow in the washing room, hot and humid air flows out from the tableware supply section to the conveyor and the tableware outlet Will do. When a large amount of air is introduced from the tableware supply unit and the tableware outlet, it is necessary to remove moisture by passing high-temperature and high-humidity air together with this air through the condenser, and moisture cannot be sufficiently removed by the condenser. Further, it is necessary to increase the suction capacity of the blower, and the noise becomes higher. Furthermore, there is a problem that the configuration becomes complicated due to the necessity of providing suction means such as a condenser and a blower, and the cost is increased.

  In addition, what is described in Patent Document 2 is that a high-pressure cold water spray mechanism is used to suck in high-temperature and high-humidity air from the inside of the machine of the dishwasher, and cools and condenses the outside air to inject the outside of the dishwasher. However, as in the case of Patent Document 1, when a large amount of outside air is introduced, it is necessary to remove the moisture by passing high-temperature and high-humidity air together with this air through a high-pressure cold water spray mechanism, and moisture may not be sufficiently removed. There is. Further, it is necessary to increase the suction capacity of the high-pressure cold water spray mechanism, and a high-pressure pump is required, resulting in higher noise. Furthermore, there is a problem in that the configuration is complicated and the cost is increased due to the necessity of providing a high-pressure pump. Moreover, since the cold water supplied to the high-pressure cold water spray mechanism is discharged without directly contributing to the washing of the dishes, there is a problem that the consumption of water as a whole dishwasher increases.

  The present invention solves the above-described conventional problems, and provides a tableware cleaning device that reduces the air-conditioning heat load of the work room in which the cleaning device is installed and improves the work environment with a simplified configuration. It is intended.

In order to solve the above-described conventional problems, a tableware cleaning apparatus according to the present invention includes a storage tool that stores a plurality of tableware in which a front surface side and a back surface side are stacked in a horizontal direction, and the storage tool is aligned in the stacking direction of the tableware. a conveyance unit Before moving Te, and entrance and unloading port of the storage device, a plurality of positions in the conveying direction of the housing member to be moved by said conveying means, a hot water heated to a predetermined temperature in the housing the dishes in the storage device A plurality of cleaning zones having a nozzle including an intermediate cleaning zone that injects as cleaning water, a rough cleaning zone that is positioned on the carry-in entrance side that injects cold water as cleaning water from the nozzle across the intermediate cleaning zone, and the carry-out port side In the rough cleaning zone, the intermediate cleaning zone, and the finishing cleaning zone, adjacent foods stored in the storage tool by cleaning water sprayed from the nozzles are provided. The high temperature that is washed away by sequentially flowing the cleaning water from the upper part to the lower part and from the upper part to the transverse part, and flowing from the intermediate washing zone toward the carry-in port and the carry-out port. When high-humidity air passes through the rough cleaning zone and the finishing cleaning zone, the high-temperature and high-humidity air, the cleaning water that is the sprayed cold water, and the cleaning water that is the cold water diffused by hitting the storage device and the tableware. Condensation effect due to liquid contact is caused, and further, condensation effect due to contact between the hot and humid air and the wall surface of the rough cleaning zone and the finish cleaning zone, the temperature of which is lowered by the washing water which is the diffused cold water, more for condensation operation within these rough washing zone and the finishing cleaning zone, the cleaning device out from the carry-in port and carry-out port of the hot and humid air To prevent the outflow and is characterized by not comprising other to the condenser or the like.

  According to the tableware cleaning apparatus of the present invention, it is possible to reduce the air-conditioning heat load in the work room in which the cleaning apparatus is installed and improve the work environment with a simplified configuration.

A first invention is a storage device that houses a plurality of dishes stacked surface side and the back side in the horizontal direction, and the conveyance means Before moving the accommodation tool along the overlapping direction of the dishes, loading of the storage equipment A nozzle including an intermediate cleaning zone for injecting hot water heated to a predetermined temperature to the tableware stored in the storage tool as cleaning water at a plurality of positions in the transport direction of the storage tool moved by the transport means, and a mouth and a carry-out port A plurality of cleaning zones, a rough cleaning zone positioned on the carry-in side for injecting cold water as cleaning water from a nozzle across the intermediate cleaning zone, and a finish cleaning zone positioned on the carry-out side, the rough cleaning zone In the intermediate cleaning zone and the finishing cleaning zone, the adjacent tableware stored in the storage device is sequentially separated by the cleaning water sprayed from the nozzle, and the space in the separated space is washed. Washing is performed by flowing water from the upper part to the lower part and from the upper part to the transverse direction, and hot and humid air flowing from the intermediate washing zone toward the carry-in port and the carry-out port is formed in the rough washing zone and the finish washing zone. When passing through the hot and humid air, a condensing action is caused by gas-liquid contact between the washing water that is the cold water that has been jetted and the washing water that is the cold water that has spread on the tableware and the tableware, and the hot and humid air. Condensation is caused by contact between the air and the wall of the rough cleaning zone and the finishing cleaning zone where the temperature is lowered by the cleaning water that is the diffused cold water, and condensation in the rough cleaning zone and the finishing cleaning zone. more for work, it said preventing flow out of the hot and humid the entrance and unloading port of the air to the cleaning device outside that does not include the other to the condenser or the like It is obtained by the cleaning device of dishes to symptoms.

  This simplifies the configuration and prevents outflow of hot and humid air generated in the cleaning device to the outside of the cleaning device, reducing the air conditioning heat load in the work room where the cleaning device is installed, and improving the work environment. It can be set as the tableware washing device which aimed at.

  The second invention is the first invention, wherein the carry-in port and the carry-out port are provided with a bendable partition member that freely hangs down without fixing the upper end portion and does not fix the lower end portion, and the hot and humid air diffused cold water A condensing action is caused by contact with the partition member whose temperature has been lowered by the washing water, and this condensing action prevents the hot and humid air from flowing out of the washing apparatus from the carry-in and carry-out openings. The tableware cleaning device is characterized.

  Also from this effect | action, a condensation effect | action arises by contact with hot and humid air and a partition member, and the outflow of the hot and humid air out of the washing | cleaning apparatus can be prevented.

  According to a third aspect of the present invention, there is provided a tableware washing apparatus according to the first or second aspect, wherein cold water is jetted as washing water from a plurality of nozzles provided in the rough washing zone and the finish washing zone.

  Thereby, the gas-liquid contact between the wash water for cold water sprayed in a divided manner and the hot and humid air is promoted, and the temperature of the hot and humid air can be lowered more effectively.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the invention, there is provided a tableware provided with cooling means for stabilizing the temperature of cold water sprayed as cleaning water in the rough cleaning zone and the finishing cleaning zone. This is a cleaning device.

  Thereby, the temperature of cold water can be made constant.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front structural view showing a basic structure of a cleaning apparatus for performing a dish cleaning method which is a tableware according to an embodiment of the present invention, FIG. 2 is a side sectional view taken along line AA of FIG. 1, and FIG. 4 is a top view of the storage device of FIG. 3, FIG. 5 is an overview diagram showing a state in which a plurality of dishes are stacked in the vertical direction, and FIG. 6 is a storage device for the dishes stacked in the vertical direction. FIG. 7 is a view showing the posture of the dish when the storage tool is tilted from the vertical direction to the horizontal direction, and FIG. 8 is a diagram showing a state in which a plurality of dishes are stored in the storage tool. FIG. 9 to FIG. 12 are partially enlarged views of the upper peripheral edge of the dish positioned at the top and the upper peripheral edge of the dish positioned at the rearmost part, and FIGS. It is a figure which shows a state change. In addition, the solid line arrow in FIG. 1 shows the moving direction (conveyance direction) of the storage tool 14.

  As shown in FIG. 1, the cleaning device 1 is divided in a vertical direction by a conveyor 2 that is a conveying means and a partition member 3 positioned below the conveyor 2, and the lower part constitutes an equipment space 5 by a lower outer body 4. doing. The upper part constitutes a cleaning space 7 by the upper shell 6. Moreover, the nozzles 10 and 11 which inject washing water with the pump 9 from the tank 8 which stores washing water are provided.

  A storage tool 14 storing a plurality of dishes 37 is carried onto a conveyor 2 from a carry-in entrance 1a provided in the cleaning device 1, and moves at a predetermined speed in the direction of a solid line arrow in FIG. The container 14 that has been cleaned is carried out from a carry-out port 1 b provided in the cleaning device 1. Further, the carry-in entrance 1a and the carry-out exit 1b are provided with bendable partition members 1c and 1d that are fixed at the upper end and are suspended freely without fixing the lower end. The storage tool 14 moves while hitting the partition members 1c and 1d that are cut in the vertical direction. In addition, the conveyor 2 is comprised in the rail shape so that the washing | cleaning water sprayed from the nozzles 10 and 11 may not be disturbed to the plate | plate 37 accommodated in the storage tool 14. FIG. The tank 8, the pump 9, and the nozzles 10 and 11 are connected by pipes 12 and 13.

  As shown in FIG. 2, the nozzles 10 and 11 are arranged at a predetermined angle (θ2) with respect to the vertical center in the direction orthogonal to the stacking direction of the dishes 37 (the radial direction of the dishes 37). Washing water is sprayed from the upper half side toward the substantially central portion of the dish 37. The nozzles 10 and 11 are arranged with a predetermined angle (θ1) with respect to the vertical plane as shown in FIG. Further, the distance between each of the nozzles 10 and 11 and the dish 37 is arranged at a position as close to the peripheral edge of the dish 37 as possible based on the dish 37 having the largest outer diameter so as to correspond to a plurality of sizes of the dish 37. doing. The predetermined angle (θ1) of the nozzles 10 and 11 is set to, for example, approximately 10 degrees with respect to the vertical plane.

  In the cleaning space 7, a plurality of storage devices 14 storing the dishes 37 along the moving direction of the storage device 14 are positioned on the conveyor 2 at a predetermined interval, and nozzles 10, 11 is provided. The cleaning space 7 is divided into a rough cleaning zone 7a, intermediate cleaning zones 7b and 7c, and a final cleaning zone 7d from the entrance side of the storage tool 14. Each cleaning zone is provided with at least one tank 8 for storing cleaning water, a pump 9 and nozzles 10 and 11 as one unit. The classification and number of cleaning zones, and the number of tanks 8, pumps 9, and nozzles 10 and 11 disposed in each cleaning zone are merely examples, and the present invention is not limited to this.

Each tank 8 in the intermediate cleaning zones 7b and 7c is provided with a heating stage 8a for heating the cleaning water in the tank 8 to a predetermined temperature (for example, 60 to 80 degrees C). Thus, hot water is jetted from the nozzles 10 and 11 in the intermediate cleaning zones 7b and 7c. The heating stage 8a uses steam, an electric heater or the like as a heat source.
Further, each of the tanks 8 in the rough cleaning zone 7a and the finish cleaning zone 7d is not provided with the heating stage 8a. Thus, cold water is jetted from the nozzles 10 and 11 in the rough cleaning zone 7a and the finish cleaning zone 7d. This cold water introduces tap water at a normal temperature level (5 to 40 degrees C) into the tank 8. In addition, in order to make the temperature of cold water constant, you may provide a cooling means separately.

  As shown in the schematic perspective view of the storage device 14 of the dish 37 in FIG. 3 and the top view of the storage device 14 in FIG. 4, the storage device 14 mainly includes a storage portion 15 and a holding portion 26. The storage unit 15 includes a base plate 16 and a frame 17, and the base plate 16 and the frame 17 are integrated by support columns 18, 19, 20, and 21 having a predetermined length. Further, rod-like supports 22 and 23 having a circular cross section are fixed between the base plate 16 and the frame 17. The holding unit 26 includes a base plate 27 and a frame 28, and the base plate 27 and the frame 28 are integrated by support columns 29, 30, 31, and 32 having a predetermined length. Further, rod-like supports 33 and 34 having a circular cross section are fixed between the base plate 27 and the frame 28. Rotating members 35 are provided at a plurality of positions of the support column 21 of the storage unit 15 and the support column 31 of the holding unit 26, and the storage unit 15 and the holding unit 26 are configured to be rotatable so that the holding unit 26 can be opened and closed. Further, a hook member 36 is provided on the support column 32 of the holding portion 26 so that the holding member 26 is fixed when the holding portion 26 is closed with respect to the storage portion 15. A handle 24 is provided on the frame 17, and the handle 24 is configured to be rotatable by a rotating member 25.

  As shown in FIGS. 5 and 6, the dishes 37 that are unwashed dishes after eating are stacked in a vertical direction (longitudinal direction) by a predetermined number (for example, 20 to 40) with the surface 37 a of the dishes 37 facing up. With this as a unit, the holder 26 of the storage tool 14 in the vertical posture is stored in the storage unit 15 in an open state. The yarn bottom 37d of the back surface 37b of the lowermost plate 37 is placed on the base plate 16, and is pushed in and stored until the peripheral end portion 37c of the plate 37 contacts the supports 22 and 23. Thereafter, the holding portion 26 is turned to a closed state. At this time, the peripheral end portion 37c of the dish 37 is in contact with or close to the supports 33 and 34. As a result, a predetermined number of plates 37 stacked in the vertical direction are supported by the support bodies 22, 23, 33, 34 at a plurality of locations on the peripheral end portion 37 c.

  Further, the total length (L1) of the surface 37a side of the plate 37 positioned at the top (top) of the stacked plates 37 and the back surface 37b side (including the yarn bottom 37d) of the plate 37 positioned at the end (bottom). On the other hand, the plate 37 stacked on the storage tool 14 is stored so as to have a predetermined space (L2) between the surface 37a of the plate 37 positioned at the top (top) and the inner surfaces of the frames 17 and 28. Therefore, the total length (L3) of the inner surfaces of the base plates 16, 27 and the inner surfaces of the frames 17, 28 of the storage tool 14 is (L1) plus (L2). The predetermined space (L2) is set to 10 to 20 millimeters, for example. (S1) indicates the interval between the peripheral end portions 37c of the plates 37 adjacent to each other.

  The plates 37 are stacked in the vertical direction and stored as a unit in the storage device 14 in the vertical orientation, but the storage device 14 is placed in the horizontal (lateral) orientation with the storage portion 15 facing down. The stacked plates 37 can also be stored.

  After the plurality of dishes 37 are stored in the storage device 14, the storage device 14 is placed in a horizontal (lateral) position with the storage portion 15 facing down and is loaded onto the conveyor 2 in the cleaning space 7. FIG. 7 shows the posture state of the plurality of dishes 37 when the storage tool 14 is changed from the vertical direction to the horizontal direction.

  Further, when the storage device 14 is set in the horizontal direction with the storage portion 15 facing down, the lower part on the surface 37a side of the top plate 37 is in contact with the frame 17 (position restricting member) and positioned at the end. A part on the back surface 37b side of the plate 37 is in contact with the base plate 27 (position regulating member), and the positions of both ends are regulated. In a predetermined range corresponding to a predetermined space (L2) between the front surface 37a of the plate 37 and the inner surfaces of the frames 17 and 28 when the storage device 14 is stored in the vertical direction and the plurality of plates 37 are stored. A peripheral end portion 37c of the plate 37 is supported so as to be freely slidable on the support bodies 22, 23, 33, and 34 along the overlapping direction.

  Further, the peripheral end portions 37c of the plurality of dishes 37 freely slide the support bodies 22, 23, 33, and 34 so as to be movable along the overlapping direction, and the peripheral end portions 37c and the top of the plurality of dishes 37 as a whole. Only the front surface 37a side of the plate 37 positioned at the rear and the back surface 37b side of the plate 37 positioned at the end are supported by the base plates 16 and 27 and the frames 17 and 28, which are position control members, to control the position. Thus, within a predetermined range corresponding to the predetermined space (L2), a plurality of dishes 37 in which the front surface 37a side and the back surface 37b side are overlapped in the horizontal direction are moved along the overlap direction, and the vertical direction (longitudinal direction) and the horizontal direction. (Horizontal direction) posture change is stored so as to be freely within a predetermined range.

  When the storage device 14 is placed in the horizontal direction with the storage unit 15 facing down, the center of gravity of the dish 37 is positioned on the back surface 37b side of the dish 37, so that the plurality of dishes 37 are rotated around the back surface 37b side of the dish 37. The end 37c slides on the supports 22, 23, 33, and 34, and the plurality of dishes 37 are in contact with each other, and are inclined at a predetermined angle (θ3) in the same direction so as to overlap. . In addition, the inclination angle of the dish 37 is different between the dish 37 positioned at the head and the dish 37 positioned at the tail, and the dish 37 positioned at the tail is set to have the maximum tilt angle (θ3) of the dish 37 positioned at the head. The inclination angle gradually becomes smaller in the lateral direction.

  Further, the lower peripheral end portion 37c of the plurality of inclined dishes 37 is in contact with the support bodies 22 and 23, and the inclination angle (θ3) of the dish 37 positioned at the top is maximized, and the dish 37 positioned at the rearmost position. Since the angle of inclination gradually decreases in the lateral direction, the height of the peripheral end portion 37c on the upper side of the plurality of dishes 37 starts from the peripheral end part 37c of the dish 37 located at the rearmost position. It is in the state which becomes low gradually toward the peripheral edge part 37c of the plate | plate 37 located in this. In this state, the upper peripheral end portions 37 c of the plurality of dishes 37 are not in contact with the supports 33 and 34 and are separated. The inclination angle of the plurality of dishes 37 varies depending on the diameter of the dish 37 when the predetermined space (L2) is constant, and the inclination angle (θ3) becomes smaller when the diameter of the dish 37 is larger. . Moreover, the space | interval (S2) of the lower side peripheral edge part 37c of the mutually adjacent dishes 37 will be in the state wider than the space | interval (S3) of the upper side peripheral edge part 37c.

  The height of the peripheral end 37c on the upper side of the plurality of dishes 37 gradually decreases from the peripheral end 37c of the dish 37 located at the rear end to the peripheral end 37c of the dish 37 located at the top. Yes. As a result, as shown in FIG. 8, a step (S5) is formed in the height direction of the peripheral end portion 37c of the plates 37 adjacent to each other, and the plates 37 adjacent to each other are part of the front surface 37a side and the back surface 37b side. By contacting (for example, the yarn bottom 37d), an interval (S3) is formed between the peripheral end portions 37c. Further, since the plurality of dishes 37 are folded so as to be inclined at a predetermined angle (θ3) in the same direction, the peripheral end portion 37c on the upper side of the dish 37 located at the head and the frame 17 of the storage tool 14 are arranged. (S4) is formed between the two. Further, as shown in FIG. 8, when a part (for example, a thread bottom 37 d) of the back surface 37 b side of the plate 37 positioned at the tail is in contact with the base plates 16, 27, the upper side of the plate 37 positioned at the tail. An interval (S6) is formed between the peripheral end portion 37c of the base plate 16 and the base plates 16 and 27.

  Further, in this embodiment, the rod-like supports 22, 23, 33, 34 having a circular cross section and the peripheral end portion 37c of the plate 37 are almost in point contact, and slip resistance can be reduced. The supports 22, 23 and 33, 34 are preferably processed surfaces having good smoothness, or at least the surface thereof is preferably a resin or the like. In this case, the supports 22, 23, 33, 34 and the peripheral edge 37c of the dish 37 are used. And the movement of the plate 37 can be made smooth, and the separating operation and the posture change of the plates 37 adjacent to each other during cleaning can be more reliably performed.

  In addition, it is necessary to consider the storage tool after storing tableware so that it can be easily carried and the loading and unloading operations into the cleaning device can be easily performed. For this reason, although it changes with kinds, shapes, masses, etc. of tableware, especially the number of the dishes 37 accommodated in the storage tool 14 from the surface of total mass is preferable about 20-40 pieces.

  Further, the number, the cross-sectional shape, the arrangement position, etc. of the supports 22, 23 and 33, 34 of the storage device 14 are not limited to the embodiment, but the shape, size, mass, material of the tableware (dish 37) The optimum conditions may be set in consideration of the inclination posture of the tableware during washing and the stability of the movement from the inclination posture in the vertical direction. In the embodiment, since the cleaning is performed with the storage unit 15 facing down and the storage tool 14 in a horizontal (lateral) position, the mass of the plurality of dishes (dish 37) is used to support the support members 22 and 23 of the storage unit 15. Will receive and support. Therefore, the number of the supports 22 and 23 of the storage unit 15 may be larger than the number of the supports 33 and 34 of the holding unit 26, and in this case, the stability can be further improved.

  As described above, the storage tool 14 is positioned at the top while the peripheral end portions 37c of the plurality of dishes 37 freely slide the support bodies 22, 23, 33, and 34 so as to be movable along the overlapping direction. The positions of only the front surface 37a side of the plate 37 and the rear surface 37b side of the plate 37 positioned at the tail are regulated by the base plates 16 and 27 and the frames 17 and 28 as position regulating members, and the front surface 37a side and the back surface 37b side are regulated. A plurality of dishes 37 stacked in the horizontal direction are stored so that movement along the stacking direction and change in posture in the vertical direction can be freely performed within a predetermined range.

  As a result, the plate 37 having a variation in size, the plate 37 having a small pitch (outer edge) between the peripheral ends 37c, and the plate 37 to which solid matter such as leftovers after eating and meat pieces adhered are stacked and stored as they are. Can be inserted and stored. In addition, it is not necessary to check the degree of fitting of the plurality of dishes 37, and the storage and take-out of the plurality of dishes 37 can be made extremely easy and the storage property can be improved.

  Further, only a predetermined space may be provided and stored with respect to the total length of the stacked dishes 37, and the plurality of dishes 37 can be stored in a compact manner, so that the storage tool itself can be reduced in size and weight. Furthermore, due to the simplification of the structure, there are few components that obstruct the flow of the cleaning water sprayed to the plurality of dishes 37 stored in the storage tool, and the plurality of dishes 37 can be reliably cleaned. In addition, the storage device itself can be reliably cleaned, and the dirt component of the plurality of dishes 37 is caught and does not remain in the storage device. Thus, the structure of the storage tool can be simplified and the storage performance of the dish 37 can be improved.

  When the storage device 14 is placed in a horizontal (lateral) position with the storage unit 15 down, the center of gravity of the plate 37 is positioned on the back surface 37b side of the plate 37, so that the plurality of plates 37 are on the back surface 37b side. The peripheral end portion 37c slides on the support 22, 23, 33, 34 with the lower side facing downward, and the plurality of dishes 37 are inclined at a predetermined angle (θ3) in the same direction so that a part of them is in contact with each other and folded. It will be. Thus, it is not necessary to support and restrain the individual dishes 37 and operate the support mechanism to incline the plurality of dishes 37, and the posture in which the plurality of dishes 37 are inclined only by placing the storage device 14 in the horizontal direction. Therefore, the operation work at the time of washing can be simplified. Further, the plurality of dishes 37 can be charged and transported to the cleaning device in a stabilized state.

  Further, the plurality of dishes 37 are accommodated such that the interval between the lower peripheral end portions 37c of the adjacent dishes 37 is larger than the interval between the upper peripheral end portions 37c. As a result, the plurality of dishes 37 can be loaded and transported to the cleaning device in a more stabilized state. Moreover, when storing after washing | cleaning, the washing water adhering to the surface 37a side and the back surface 37b side of the dish 37 tends to flow out, and can dry more quickly.

  Next, based on FIGS. 9 to 12, basic washing operation, action, and dish separation and posture state change in washing will be described. In the figure, W indicates the flow of the jetted cleaning water.

  FIG. 9A shows a cleaning state of the surface 37a of the dish 37 stored in the storage tool 14 located at the head in the moving direction. The washing water is sprayed from the nozzles 10 and 11 to the interval (S4) in a direction crossing each other. As a result, the washing water from the nozzles 10 and 11 becomes a collision flow on the surface 37a of the dish 37 and diffuses to remove dirt. In particular, the cleaning water splashes between the surface 37a portion of the dish 37 and the frames 17 and 28 and strikes the surface 37a portion to reliably remove the dirt.

  In the state of FIG. 9A, the plurality of dishes 37 are inclined at a predetermined angle, but the washing water from the nozzles 10 and 11 gives dynamic pressure to the surface 37 a of the dish 37, As the washing water flows from above to below the space between the surface 37a and the frames 17, 28, the lower portion of the surface 37a of the dish 37 is separated from the frames 17, 28 as shown in FIG. 9B. Then, the plurality of dishes 37 positioned from the head to the tail changes from a posture inclined at a predetermined angle to a substantially vertical posture. Further, the washing water flows from the upper side to the lower side of the space between the surface 37a portion of the plate 37 and the frames 17 and 28, thereby removing dirt on the surface 37a of the plate 37.

  FIG. 10A shows the peripheral edge 37c of the dish 37 in which the storage tool 14 is moved by the conveyor 2 with respect to the nozzles 10 and 11 fixedly arranged from the state of FIG. Indicates the state of hitting. The washing water sprayed from the nozzles 10 and 11 has a predetermined width, and the washing water has a velocity distribution in which the flow velocity at the central portion is faster than the flow velocity at the outer peripheral portion. Furthermore, the thickness (width) of the peripheral end portion 37c is small and has a structure having a predetermined curvature. As a result, the washing water is diverted to both sides of the peripheral end portion 37 c when it hits the peripheral end portion 37 c of the dish 37, and the proportion of the flow rate changes in a very short time due to the movement of the storage tool 14. The width in the moving direction of the storage device 14 for the cleaning water sprayed from the nozzles 10 and 11 does not need to be narrowed, and may be, for example, about the pitch dimension of the peripheral end portions 37c of the plates 37 adjacent to each other.

  Therefore, the amount of the diversion component of the washing water from the peripheral edge 37c of the tray 37 positioned at the head to the frames 17 and 28 due to the movement of the storage tool 14 is adjacent to the peripheral edge 37c of the tray 37 positioned at the head. When the amount of the diversion component of the washing water to the second dish 37 side is larger, the surface 37a portion of the dish 37 and the frames 17, 28 are in a separated state as shown in FIG. 9B.

  Furthermore, the amount of the diversion component of the washing water from the peripheral end portion 37c of the dish 37 positioned at the head to the adjacent second dish 37 side by the movement of the storage tool 14 is the peripheral edge portion 37c of the dish 37 positioned at the head. If the amount of the diversion component of the washing water from the frame 17 to the frame 17 or 28 becomes larger, the dynamic pressure and static pressure of the washing water that has entered the interval (S3) between the upper peripheral end portions 37c are located at the top. 10 acts on the back surface 37b of the second plate 37 and the front surface 37a of the second plate 37 to spread them, and the plate 37 located at the head as shown in FIG. , 33 and 34, the peripheral end 37c slides and contacts the frames 17 and 28. At the same time, the plate 37 located at the head and the second plate 37 adjacent to each other are separated from each other.

  Washing water flows from the upper part to the lower part and from the upper part to the lateral part in the spaced intervals, and the dirt on the back surface 37b of the tableware 37 located at the top and the surface 37a of the second tableware 37 is removed and washed. is there. When the cleaning water flows in the spaced intervals, the dirt on the front surface 37a and the back surface 37b of the tableware 37 can be surely removed and the formation of the spaced intervals can be maintained.

  As described above, since the ratio of the partial flow rate changes in a very short time due to the movement of the storage tool 14, the transition from the state shown in FIG. 10 (a) to FIG. 10 (b) is performed almost instantaneously. The plurality of dishes 37 stored in 14 are maintained in a substantially vertical posture. In the state shown in FIG. 10B, dirt on the surface 37a of the second dish 37 adjacent to the back surface 37b of the dish 37 positioned at the head is removed by the flow of the washing water.

  In the state shown in FIGS. 10A and 10B, the plurality of dishes 37 stored in the storage device 14 is maintained in a substantially vertical posture, and is stored at a predetermined angle (θ3). The interval (S3) between the upper peripheral end portions 37c is substantially the same as the interval (S1) between the peripheral end portions 37c when the plates 37 are stacked in the vertical direction and stored in the storage tool 14. As a result, the interval between the peripheral end portions 37c on the upper side of the plates 37 adjacent to each other is widened, and the cleaning water is more likely to enter the interval between the peripheral end portions 37c of the plates 37 adjacent to each other.

  FIG. 11A shows the peripheral edge of the dish 37 in which the storage tool 14 is moved by the conveyor 2 with respect to the nozzles 10 and 11 fixedly arranged from the state of FIG. The state which hits 37c is shown. As in the state change in FIGS. 10 (a) and 10 (b), the washing water from the peripheral end portion 37c of the dish 37 located second by the movement of the storage tool 14 to the dish 37 side located at the head is provided. When the amount of the diversion component is larger than the amount of the diversion component of the washing water from the second to the third plate 37 adjacent to the second plate 37, the rear surface 37b of the plate 37 positioned at the top and the plate 37 positioned second are positioned. The surface 37a is in a separated state as shown in FIG.

  Furthermore, the amount of the diversion component of the washing water from the peripheral end portion 37c of the second dish 37 to the adjacent third dish 37 side by the movement of the storage tool 14 is the peripheral edge of the second dish 37. When the amount of the diversion component of the washing water from the portion 37c to the top plate 37 is increased, the second plate 37 is supported to the top plate 37 as shown in FIG. The body 22, 23, 33, 34 is slid and moved to contact the top plate 37, and at the same time, the second plate 37 and the adjacent third plate 37 are separated from the contacted state. .

  As described above, since the ratio of the partial flow rate changes in a very short time due to the movement of the storage device 14, the state transition from FIG. 11 (a) to FIG. 11 (b) is performed almost instantaneously. The plurality of dishes 37 stored in 14 are maintained in a substantially vertical posture. In the state shown in FIG. 11B, dirt on the surface 37a of the third dish 37 adjacent to the back surface 37b of the second dish 37 is removed by the flow of the washing water. Thereafter, the same operation and action as described above are repeated by moving the storage tool 14, and the tableware 37 stored in the storage tool 14 is sequentially washed.

  FIG. 12A shows a cleaning state when the cleaning water from the nozzles 10 and 11 is moved to the position of the rear surface 37b of the dish 37 located at the end by the movement of the storage tool 14. The cleaning water of the nozzles 10 and 11 enters the space (S6) between the back surface 37b of the plate 37 located at the tail and the base plates 16 and 27, and is located at the surface and the tail of the base plates 16 and 27 of the storage device 14. The rear surface 37b of the plate 37 located at the rear end is removed and cleaned by repeatedly colliding with the back surface 37b of the plate 37. The plurality of dishes 37 stored in the storage device 14 is in a substantially vertical orientation when the back surface 37b of the dish 37 located at the rearmost end is pushed by the cleaning water.

In general, the back surface of the tableware is less dirty than the surface of the tableware, but the above operation reliably removes the stain on the back surface 37b of the plate 37 located at the tail. In the cleaning state shown in FIGS. 9 to 12, the container 14 itself is also cleaned by the flow of the cleaning water sprayed from the nozzles 10 and 11 and the cleaning water from the dish 37. FIG. The cleaning state when the cleaning water from the nozzles 10 and 11 is moved to the position deviated from the base plates 16 and 27 of the storage tool 14 by the movement of the storage tool 14 from the state 12 (a) is shown. At this time, since the washing water from the nozzles 10 and 11 does not hit the plurality of dishes 37, the plurality of dishes 37 return to a state inclined at a predetermined angle (θ3) as in the case of storage as shown in FIG. Become.

  As described above, the cleaning operation shown in FIGS. 9 to 12 is performed in each of the rough cleaning zone 7a, the intermediate cleaning zones 7b and 7c, and the finishing cleaning zone 7d, and the cleaning of the dish 37 stored together with the storage tool 14 is completed. .

  The dish 37 that has been cleaned is stored in the storage tool 14 by being dried, sterilized, or the like in the next step. In one cleaning zone, the cleaning operation shown in FIGS. 9 to 12 may be performed a plurality of times by moving the storage device 14 in one direction, and the cleaning operation is selected as necessary.

  In addition, there is a bowl as a round tableware, but it has the same configuration, washing operation, action, and effect as the dish 37.

  As described above, the cleaning device according to the present embodiment includes the plurality of support bodies 22 along the stacking direction of the peripheral end portion 37c of the dish 37, which is a plurality of dishes in which the front surface 37a side and the back surface 37b side are stacked in the horizontal direction. 23, 33, 34, and among the plurality of dishes 37, the position of the position on the front surface 37 a side of the dish 37 located at the top and the position of the rear surface 37 b side of the dish 37 located at the end is a base plate 16 and 27 and the frames 17 and 28, the plurality of dishes 37 are stored in the storage tool 14 so that movement and posture change along the overlapping direction can be freely performed within a predetermined range. The cleaning water is sequentially sprayed from the nozzles 10 and 11 along the overlapping direction to the peripheral ends of the plurality of stored dishes 37, and the adjacent dishes 37 separated from each other are separated by the cleaning water sprayed from the nozzles 10 and 11. Spaced apart, The flow of the washing water flowing between the intervals in which successively to clean the plurality of disc 37.

  For each individual plate 37, the peripheral edge 37c is supported and restrained freely within a predetermined range without being restrained, and the posture can be freely moved and changed in posture, and the peripheral edge 37c is sequentially injected along the overlapping direction. To do. As a result, the individual dishes 37 immediately follow the flow of the washing water and swing, and the adjacent dishes 37 are separated while sequentially repeating the contact state and the non-contact state. When the washing water flows in the spaced intervals, it is possible to reliably remove dirt and to maintain the formation of the spaced intervals.

  In addition, the plates 37 move and swing along the plurality of supports 22, 23, 33, 34 while sequentially repeating the contact state and the non-contact state in which the plates 37 are separated from each other, and the plates 37 that are adjacent to each other. Will contact each other at a high speed. By this movement and recoil at the time of contact, dirt attached to the dish 37 can be removed, and peeling of the residue can be promoted to improve the cleaning performance. Furthermore, the movement of the peripheral end portion 37c of the dish 37 can surely remove the contamination of the peripheral end portion 37c portion and the storage device 14 itself.

  In this manner, the support of the peripheral end portion 37c of each dish 37 is not required, and the plurality of dishes 37 are stored in the storage device 14 with a predetermined space necessary for the washing water to flow between the dishes 37 adjacent to each other. The storage tool 14 can be reduced in size. As a result, a larger number of storage devices 14 can be put into the cleaning device at the same time for cleaning. Further, as described above, the plates 37 adjacent to each other can be instantaneously separated and the dirt can be reliably removed. Therefore, it is possible to reliably and efficiently remove the dirt on the dish 37 stored compactly in the storage tool.

  Further, in the present embodiment, the wash dishes sprayed from the nozzles 10 and 11 change the plurality of dishes 37 stored in a posture inclined at a predetermined angle into a substantially vertical posture and separate the adjacent plates 37 that are in contact with each other. They are separated. While the adjacent dishes 37 are reliably separated from each other, the washing water always flows in contact with the front surface 37a and the back surface 37b of the dish 37, and further promotes the fall of dirt components by adopting a substantially vertical posture. Thus, the dirt can be removed reliably.

  Further, by spraying the cleaning water from the plurality of nozzles 10 and 11 to the peripheral end portion 37c of the dish 37 along the overlapping direction, the dish 37 is separated in a stable state and sufficient washing water is separated. The dirt can be surely removed by entering the gap. Further, by injecting the cleaning water from the plurality of nozzles 10 and 11 in the direction intersecting with each other at the interval between the peripheral end portions 37c of the plate 37, the cleaning water from the plurality of nozzles 10 and 11 is separated from the collision flow within the interval. Thus, a high-speed washing water flow that diffuses and discharges outward from the peripheral end portion 37c side where no washing water is jetted can be formed, and dirt can be reliably removed.

  The dimension of the predetermined space (L2) may be set to an optimum condition in consideration of an inclination angle (θ3) with respect to the vertical surface of the plurality of dishes 37 and a necessary separation distance when cleaning the dishes 37 adjacent to each other. If the inclination angle (θ3) is too large, the posture of the dish 37 varies and becomes unstable. The separation distance may be a dimension in which the cleaning water flows over the entire surface 37a and back surface 37b of the plates 37 adjacent to each other, and does not require a large distance. Although depending on the type, shape, size, mass, and the like of the plate 37, the inclination angle (θ3) is set to 5 to 10 degrees, for example, and the separation distance is set to 10 to 20 millimeters, for example. Therefore, the dish 37 can be stored compactly in the storage tool 14 and can be washed in this state.

  Further, the moving speed of the storage device 14 correlates with the amount and speed of washing water jetting and the time during which the washing water flows while the adjacent dishes 37 are separated from each other. If the speed is made slower and if there is little dirt, the moving speed should be made faster and set according to the situation. The moving speed of the normal storage tool 14 is set to 0.5 to 1 meter per minute, for example.

  In the above-described cleaning state, the plurality of dishes 37 were changed from the posture inclined at a predetermined angle by the cleaning water to the substantially vertical posture, but the posture inclined at the predetermined angle (θ3) was slightly changed to the vertical direction to incline the posture. Alternatively, the plates 37 adjacent to each other may be separated from the contact state to the non-contact state, and the cleaning water may be flowed to perform cleaning. In this case, the distance between the upper sides of the plates 37 adjacent to each other in a non-contact state is as narrow as, for example, 10 millimeters or less. It can be washed by flowing into the space 37c and further flowing downward from the dish 37.

  The angle of change of the posture of the dish 37 from the posture inclined at a predetermined angle (θ3) to the vertical direction is, for example, the amount of washing water from the nozzles 10, 11, the jetting speed, and the movement of the container 14 within the washing space 7. Can be adjusted by speed etc. By adjusting at least one of reducing the amount of cleaning water from the nozzles 10 and 11, reducing the spraying speed, and increasing the moving speed of the storage tool 14 in the cleaning space 7. The change angle of the posture in the vertical direction tends to be small, and the spacing between the upper sides of the adjacent tableware is also narrowed. What is necessary is just to set this to optimal conditions with the shape of a tableware, mass, and the grade of dirt.

  Further, when the washing water is jetted while being inclined while reducing the change angle of the posture in the vertical direction from the posture inclined by the predetermined angle (θ3) of the plate 37, as shown in FIGS. 7 and 8, they are adjacent to each other. A step (S5) is formed in the height direction of the peripheral end portion 37c of the plate 37, and the nozzles 10 and 11 are provided with a predetermined angle (θ1) with respect to the vertical plane, whereby the nozzle 10 The washing water sprayed from 11 and 11 is caught by hitting the step (S5) portion, and easily enters the interval between the peripheral end portions 37c on the upper side of the plate 37.

  Due to the action of trapping the washing water by the step (S5) described above, the plurality of dishes 37 can be sequentially separated and washed in the inclined posture. In this case, the plurality of dishes 37 stored in the storage tool 14 are also inclined.

  Although not shown, the container 14 is moved back and forth by a driving means from one direction to clean the dish 37, or the container 14 is fixed and the nozzles 10 and 11 are moved back and forth by the driving means. By washing the dish 37, it is possible to reduce the size of the washing apparatus and save space. This is particularly suitable when the number of dishes 37 to be cleaned is relatively small.

  Further, in the cleaning apparatus of the present embodiment, cold water is jetted as cleaning water from the nozzles 10 and 11 in the rough cleaning zone 7a. Thus, moisture is first given to the dirt adhered to the dish 37, which is tableware, to soften the dirt, and the dirt is removed by the flow of the washing water at spaced intervals.

  In the intermediate cleaning zones 7b and 7c, hot water of, for example, 60 to 80 degrees C is ejected from the nozzles 10 and 11 as cleaning water. Furthermore, a detergent is mixed into the tank 8 as necessary, and washing water containing the detergent is sprayed. Thereby, the dirt adhering to the dish 37 is more reliably removed.

  In the finish cleaning zone 7d, cold water is jetted from the nozzles 10 and 11 as cleaning water. The detergent components used in the intermediate cleaning zones 7b and 7c are washed away to further ensure the removal of dirt.

  In the intermediate cleaning zones 7b and 7c, hot water of 60 to 80 degrees C is jetted as cleaning water from the nozzles 10 and 11, so that the temperature rises throughout the cleaning zone 7 and further steam is generated in a high temperature and humidity state. It becomes. When this hot and humid air flows out of the cleaning device in a state of being visually recognized as hot and humid hot air and water vapor particles from the carry-in port 1a and the carry-out port 1b of the storage device 14, work is performed in the vicinity of the carry-in port 1a and the carry-out port 1b. The temperature and humidity of the room where the cleaning device is installed become high, and the load on the air-conditioning equipment for processing this increases.

  In the embodiment of the present invention, cold water is jetted as cleaning water from the nozzles 10 and 11 of the rough cleaning zone 7a and the final cleaning zone 7d on the carry-in port 1a and the carry-out port 1b side. The hot and humid air generated in the intermediate cleaning zones 7b and 7c flows from the nozzles 10 and 11 to the rough cleaning zone 7a and the final cleaning zone 7d in which cold water is jetted as cleaning water.

  When hot and humid air passes through the rough cleaning zone 7a and the final cleaning zone 7d toward the carry-in entrance 1a and the carry-out exit 1b, the low temperature (cold water) wash water and the storage device 14 and the dishes sprayed from the nozzles 10 and 11 37, it comes into gas-liquid contact with the low-temperature wash water that has diffused by hitting 37. Due to the gas-liquid contact between the hot and humid air and the washing water having a low temperature, the temperature of the hot and humid air is lowered and a condensing action is generated. Further, the diffused cleaning water hits the wall surface constituting the rough cleaning zone 7a and the finishing cleaning zone 7d, and the temperature is lowered, and condensation occurs due to the condensation action on the wall surface.

  By these actions, high-temperature and high-humidity air passes through the rough cleaning zone 7a and the finish cleaning zone 7d, so that the high-temperature and high-humidity air is dehumidified and dehumidified, and is not visually recognized as water vapor particles. It flows out from the outlet 1b. This prevents the hot and humid air generated in the cleaning device from flowing out of the cleaning device, reduces the air conditioning heat load in the work room where the cleaning device is installed, and improves the work environment. It can be a cleaning device.

  In addition, the action of the washing water used for washing dishes ensures the prevention of high temperature and high humidity air from flowing out of the washing device without the need for a condenser, blower, high pressure pump, high pressure cold water spray mechanism, etc. In addition, simplification and downsizing of the configuration can be achieved, and noise can be reduced.

  Tableware whose temperature has increased in the intermediate cleaning zones 7b and 7c and the storage device storing the tableware are cooled by passing through the finishing cleaning zone 7d, and can be handled more easily when being carried out from the outlet 1b.

  Further, the carry-in entrance 1a and the carry-out exit 1b are provided with bendable partition members 1c and 1d that are fixed at the upper end and are suspended freely without fixing the lower end. The low-temperature washing water sprayed from the nozzles 10 and 11 and the low-temperature washing water diffused by hitting the storage device 14 and the dish 37 are further diffused by hitting the partition members 1c and 1d, and condensing by reducing the temperature of the partition members 1c and 1d. Condensation due to action occurs. Therefore, also from this action, it is possible to prevent outflow of hot and humid air to the outside of the cleaning device.

  In addition, although the normal temperature level (5-40 degree C) tap water was introduced into the tank 8 in each tank 8 in the rough cleaning zone 7a and the finish cleaning zone 7d, the tap water is directly supplied to the nozzles 10 and 11. Water may be supplied and drained. In addition, well water having a stable temperature may be used.

  Moreover, by injecting cold water as wash water from a plurality of nozzles located in the wash zone located on the carry-in port 1a and the carry-out port 1b side, the low-temperature wash water and the high-temperature and high-humidity air that are jetted in a plurality of divisions Gas-liquid contact is promoted, and the temperature of hot and humid air can be lowered more effectively.

  As described above, according to the tableware cleaning device of the present invention, the simplified configuration prevents the hot and humid air generated in the cleaning device from flowing out of the cleaning device, and the operation in which the cleaning device is installed. It can be set as the tableware washing device which reduced the air-conditioning heat load of the room and improved the work environment.

  The present invention is not limited to tableware, and can also be applied to cleaning objects to be cleaned such as machined parts.

BRIEF DESCRIPTION OF THE DRAWINGS The front block diagram which shows the basic composition of the tableware washing | cleaning apparatus of one Example of this invention. The sectional side view in the AA of FIG. The general-view perspective view of the storage tool of the plate which is an example of tableware. The top view of the storage tool of FIG. The general-view figure which shows the state which piled up several dishes in the perpendicular direction. The front view which shows the state which accommodated the plate piled up in the perpendicular direction in the storage tool. The figure which shows the attitude | position of the plate in the state which fell the storage tool from the vertical direction to the horizontal direction. When a plurality of dishes are stored in a storage tool and the storage tool is horizontally oriented, a partial enlargement of the upper peripheral edge of the upper dish and the upper peripheral edge of the uppermost dish located at the top Figure. (A) (b) The figure which shows the separation | separation of a dish and the attitude | position state change at the time of washing | cleaning. (A) (b) The figure which shows the separation | separation of a dish and the attitude | position state change at the time of washing | cleaning. (A) (b) The figure which shows the separation | separation of a dish and the attitude | position state change at the time of washing | cleaning. (A) (b) The figure which shows the separation | separation of a dish and the attitude | position state change at the time of washing | cleaning.

DESCRIPTION OF SYMBOLS 1 Cleaning apparatus 1a Carry-in port 1b Carry-out port 1c Partition member 1d Partition member 2 Conveyor (conveyance means)
DESCRIPTION OF SYMBOLS 3 Partition member 4 Lower outer shell 5 Equipment space 6 Upper outer shell 7 Cleaning space 7a Rough cleaning zone 7b Intermediate cleaning zone 7c Intermediate cleaning zone 7d Finishing cleaning zone 8 Cleaning water tank 8a Heating means 9 Pump 10, 11 Nozzle 12, 13 Piping 14 Storage tool 15 Storage part 16 Base plate (position regulating member)
17 Frame (position regulating member)
18, 19, 20, 21 Prop 22, 23 Support 24 Handle
25 Rotating member 26 Holding part 27 Base plate (position regulating member)
28 Frame (position regulating member)
29, 30, 31, 32 Prop 33, 34 Support 35 Rotating member 36 Hook member 37 Dish (tableware, object to be cleaned)
37a The surface of the plate 37b The back of the plate 37c The peripheral edge of the plate 37d The thread bottom

Claims (4)

And storing tool accommodating a plurality of dishes stacked surface side and the back side in the horizontal direction, and the conveyance means Before moving the accommodation tool along the overlapping direction of the dishes, and the entrance and unloading port of the storage device, A plurality of cleaning zones having nozzles including an intermediate cleaning zone for injecting hot water heated to a predetermined temperature to the tableware stored in the storage tool as cleaning water at a plurality of positions in the transport direction of the storage tool moved by the transport means; A rough cleaning zone located on the carry-in side for injecting cold water as wash water from a nozzle across the intermediate wash zone, and a finish wash zone located on the carry-out side, the rough wash zone, the intermediate wash zone, In the final cleaning zone, the adjacent tableware stored in the storage device is sequentially separated by the cleaning water sprayed from the nozzle, and the cleaning water is supplied from the upper portion within the spaced interval. When the hot and humid air flowing from the intermediate cleaning zone to the carry-in port and the carry-out port passes through the rough washing zone and the finish washing zone while washing by flowing in the horizontal direction from the partial direction and from the upper part. , Causing a condensing action by gas-liquid contact between the hot and humid air, the washing water that is the sprayed cold water, and the washing water that is the cold water diffused by hitting the container and the tableware, and the hot and humid air, and Condensing action occurs due to contact with the wall surface of the rough cleaning zone and the finish cleaning zone, the temperature of which is lowered by the cleaning water that is diffused cold water,
More for condensation operation within these rough washing zone and the finishing washing zone to prevent outflow of the cleaning device out from the carry-in port and carry-out port of the hot and humid air, without the other to the condenser or the like Tableware cleaning apparatus characterized by the above. The partition member having a bendable partition member that is suspended at a carry-in port and a carry-out port so that the upper end portion is fixed and the lower end portion is not fixed, and the temperature is lowered by washing water that is hot and humid air and diffused cold water Washing of tableware according to claim 1, wherein a condensing action is caused by contact with the air and the condensing action prevents the hot and humid air from flowing out of the washing device from the carry-in and carry-out ports. apparatus. 3. The tableware washing apparatus according to claim 1, wherein cold water is jetted as washing water from a plurality of nozzles in the rough washing zone and the finishing washing zone. The tableware washing apparatus according to any one of claims 1 to 3, further comprising a cooling unit that stabilizes the temperature of cold water sprayed as washing water in the rough washing zone and the finishing washing zone.