JP2019201963A - Conveyor type washer - Google Patents

Abstract

To provide a conveyor type washer capable of reducing an impact of dew condensation water on a conveyed object even when dew condensation water generated in a heat exchanger is discharged inside a housing.SOLUTION: A conveyor type dish washer 1 includes: a duct 70 provided on the top surface of a top plate of a housing which includes a first opening 71d communicating with a first exhaust port 61a provided above a first rinsing region S2, and a second opening 71c communicating with a second exhaust port 3c provided above a first washing region S1; and a heat exchanger 82 connected to the duct and provided to the top plate of the duct that condenses steam generated inside the housing and discharges air whose steam content is reduced. A first guide part 75 is provided in the duct, which is arranged below the heat exchanger and includes a guide surface 75a inclined downward from the first opening to the second opening.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a conveyor type washing machine that performs washing while conveying an object to be washed such as tableware.

  2. Description of the Related Art A conveyor type cleaning machine that performs cleaning while conveying an object to be cleaned such as tableware is known. For example, Patent Document 1 discloses a continuous automatic dishwasher in which a cooler for dehumidifying and cooling wet hot air introduced from a washing room is provided above a washing room in which an object to be washed is washed and rinsed. It is disclosed.

Japanese Utility Model Publication No. 6-39639

  Condensed water is generated when heat is exchanged in the moist hot air generated in the cleaning chamber. In a conveyor type washing machine in which a heat exchanger (cooler) is provided above a washing chamber as described in Patent Document 1, such condensed water drops on an object to be washed just before the end of washing. However, such dew condensation water contains dirt, detergent, and the like of the object to be cleaned, and cannot be said to be clean. Therefore, when returning such dew condensation water to the inside of the housing, the dew condensation water may be dropped onto the object to be transported, and the object to be cleaned may not be sufficiently cleaned.

  Accordingly, an object of the present invention is to provide a conveyor type that can reduce the influence of the condensed water on the object to be conveyed even when the condensed water generated in the heat exchanger is discharged into the housing. It is to provide a washing machine.

  In the conveyor type washing machine of the present invention, the inside of the housing in which the washing area where the washing object is washed and the rinsing area where the washing object is rinsed is formed is arranged in the order of the washing area and the rinsing area by the conveyor device. A conveyor type cleaning machine that performs cleaning and rinsing of an object to be cleaned while being conveyed, a first opening communicating with a first exhaust port provided above the rinsing region, and a second provided above the cleaning region A second opening that communicates with the exhaust port, and is provided on the top surface of the top plate of the housing, and connected to the duct and provided on the top plate of the duct, A heat exchanger that condenses water vapor generated in the air and discharges air with a reduced amount of water vapor contained therein, and the duct is disposed below the heat exchanger, from the first opening to the second opening. First having a guide surface inclined downward Ido portion is provided.

  In the conveyor type washing machine having this configuration, since the first guide portion having the guide surface inclined downward from the first opening portion toward the second opening portion is provided below the heat exchanger, it is dropped from the heat exchanger. The condensed water is guided from the first opening side to the second opening side by the guide surface. As a result, the condensed water is discharged from the second discharge port to the cleaning chamber through the second opening, and is discharged from the first discharge port to the inside of the housing through the first opening. Disappears. That is, the dew condensation water is discharged from the cleaning area upstream of the rinsing area. As the object to be conveyed located upstream in the conveying direction has a longer cleaning time required for completion of the cleaning, even when the condensed water is dripped onto the object to be cleaned, sufficient time for the condensed water to be washed away is secured. The As a result, even if the condensed water generated in the heat exchanger is discharged into the housing, the influence of the condensed water on the conveyed object can be reduced.

  In the conveyor type washing machine of the present invention, the first exhaust port may be provided on the downstream side in the transport direction of the conveyor device with respect to the rinsing nozzle that ejects water to rinse the object to be cleaned. In the conveyor type washing machine having this configuration, since the first guide portion described above is provided, the condensed water dripped from the heat exchanger is not dripped from the first exhaust port. Thus, in order to effectively suppress the leakage of water vapor from the housing, even when the first exhaust port is provided on the downstream side of the rinse nozzle, the dew condensation water drops from the first exhaust port. Never do. As a result, it is possible to prevent the condensed water from adhering to an object to be cleaned just before the end of cleaning or after the cleaning is completed.

  The 2nd exhaust port of the conveyor type washing machine of this invention may be provided in the conveyance direction upstream of the conveyor apparatus rather than the washing nozzle which ejects the water which wash | cleans to-be-washed | cleaned material. According to this configuration, even if the condensed water dripped from the second opening adheres to the object to be cleaned, the condensed water is washed away by the water ejected from the cleaning nozzle and the water ejected from the rinse nozzle. . Thereby, the dew condensation water adhering to a to-be-cleaned object can be washed away more reliably.

  In the conveyor type washer of the present invention, the region is straddled between the second exhaust port and the region where the object to be cleaned is conveyed by the conveyor device in the front-rear direction orthogonal to the conveying direction of the conveyor device and the vertical direction. The 2nd guide part which has a guide surface which is arranged so that it may incline below along the direction of order may be provided. According to this configuration, the dew condensation water discharged from the second discharge port to the inside of the housing is guided to the outside of the above region, so that the dew condensation water is dripped onto the object to be cleaned by the conveyor device. Can be prevented.

  The opening surface in the 1st opening part of the conveyor type washing machine of this invention may be formed in the position higher than the opening surface in a 2nd opening part in a perpendicular direction. According to this configuration, the dew condensation water generated in the heat exchanger and transmitted through the bottom surface of the duct flows into the second opening portion earlier than the first opening portion. Therefore, it is possible to prevent the condensed water generated in the heat exchanger from flowing into the first opening along the bottom surface of the duct.

  The duct of the conveyor type washing machine of the present invention may be provided with a wall portion that is disposed so as to surround the first opening and is erected from the bottom surface that forms the duct. According to this configuration, even if condensed water generated in the heat exchanger flows into the first opening, it can be prevented from flowing into the first opening through the bottom surface of the duct. In addition, even if condensed water generated in the duct or water used for cleaning discharged from the heat exchanger having a self-cleaning nozzle flows into the first opening side, the first opening part passes along the bottom surface of the duct. Can be prevented from flowing into.

  The duct of the conveyor type washing machine of the present invention is arranged between the top plate forming the duct and the first opening, and is a shield that prevents the condensed water adhering to the top plate from dripping into the first opening. A part may be provided. According to this structure, the dew condensation water adhering to the top plate of the duct can be prevented from flowing into the first opening.

  ADVANTAGE OF THE INVENTION According to this invention, in the washing machine provided with the heat exchanger, it can prevent that the dew condensation water which generate | occur | produced in the heat exchanger adheres to the to-be-washed object which washing | cleaning completed.

It is a perspective view of the conveyor type dishwasher which concerns on one Embodiment. It is a figure which shows schematic structure of the conveyor type dishwasher which concerns on one Embodiment. It is a perspective view which shows a rack rail and a conveyor apparatus. It is the perspective view which decomposed | disassembled and showed the duct. It is a top view of the duct of the state which removed the cover. FIG. 6A is a cross-sectional view of the second guide member as viewed from the conveyance direction, and FIG. 6B is a perspective view of the second guide member. It is sectional drawing which looked at the heat exchanger from the conveyance direction. It is sectional drawing which looked at the 1st exhaust port and 1st opening part which concern on the modification 1 from the front-back direction. FIG. 9A is a perspective view of a shielding part according to the second modification, and FIG. 9B is a cross-sectional view of a shielding part according to a further modification according to the second modification.

  Hereinafter, a conveyor type dishwasher (conveyor type cleaner) 1 according to an embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. In addition, the words “front”, “rear”, “left”, and “right” below refer to the conveyance direction of tableware (object to be cleaned) D as “left-right direction” and the depth direction orthogonal to the left-right direction as “front-rear” Based on “direction”. Further, the terms “upstream” and “downstream” are based on the case where the transport direction of the tableware D is used as a reference.

  The conveyor-type dishwasher 1 is a device that performs washing while conveying an object to be washed such as tableware D accommodated in a rack R. As shown in FIGS. 1 and 2, on the left side of the conveyor type dishwasher 1, a soil table T1 for placing a rack R containing dirty dishes (for example, dishes) D is installed, and on the right side A clean table T2 is placed on which the rack R containing the tableware D after washing (rinsing) is placed.

  The casing 3 of the conveyor-type dishwasher 1 is a box-shaped member formed of a material such as stainless steel, and a space serving as a cleaning chamber (inside the casing) S is formed therein. The housing 3 is supported by four legs 5. The casing 3 includes an upper casing 3 a that forms the cleaning chamber S, a lower casing 3 b that includes the cleaning tank 20, an inlet hood 50, and an outlet hood 60. Inside the housing 3, there are formed a cleaning region composed of a first cleaning region S1 and a second cleaning region S3 and a rinsing region composed of a first rinsing region S2 and a second rinsing region S4. In the upper housing 3a, an inlet 11a and an outlet 11b through which the rack R can pass are formed on two surfaces (left surface and right surface) that are orthogonal to the transport direction (left-right direction) of the rack R and are opposed to each other. ing.

  The upper casing 3a is provided with a curtain 12A and a curtain 12B. The upper end of the curtain 12A is fixed to the upper casing 3a so as to close the inlet 11a of the internal space (cleaning chamber S) of the upper casing 3a. The upper end of the curtain 12B is fixed to the upper casing 3a so as to close the outlet 11b of the internal space of the upper casing 3a. The curtain 12 </ b> A and the curtain 12 </ b> B are formed with strip-shaped cuts to allow the rack R to pass therethrough. An opening / closing door 4 that contributes to opening / closing of the internal space of the cleaning chamber S is provided on the front surface of the upper housing 3a in the front-rear direction.

  The internal space of the upper housing 3a is partitioned by a curtain 12C. In the internal space of the upper housing 3a, a first cleaning region S1 is formed on the inlet 11a side and a first rinse region S2 is formed on the outlet 11b side with the curtain 12C interposed therebetween. The curtain 12C, like the curtain 12A and the curtain 12B, is formed with a strip-shaped cut so that the rack R can pass therethrough. In the internal space of the upper housing 3a, a pair of rack rails 14 and 14 are provided in the front-rear direction so as to bridge between the soil table T1 and the clean table T2. The pair of rack rails 14, 14 extend along the transport direction of the rack R.

  On the front surface of the lower housing 3b, an operation display unit 92 for receiving various operations from the operator and displaying the state of the conveyor type dishwasher 1 is disposed. The operation display unit 92 is controlled by a controller 90 described in detail later. The lower housing 3b is provided with a pair of rack rails 14 and 14 and a conveyor device 16. As shown in FIG. 3, the pair of rack rails 14, 14 includes an upper plate 14 </ b> A used as a rack sliding surface on which the bottom surface Ra of the rack R slides, and a guide roller 18 </ b> A attached to the conveyor device 16. It has a lower plate 14B used as a roller rolling surface that rolls, and a guide bar 14C that prevents lateral displacement of the rack R.

  The conveyor device 16 includes a frame body 17 that extends along the rack rail 14. The frame 17 includes a first frame 17A that extends along the rack rail 14 and is parallel to each other, and a second frame 17B that bridges the end of the first frame 17A. A guide roller 18A that protrudes in the horizontal direction is rotatably supported on the first frame 17A. Two guide rollers 18A are provided before and after the first frame 17A, and roll on the roller rolling surface of the rack rail 14.

  In the first frame 17A, feed claws 18B capable of appearing and retracting are arranged at predetermined intervals. Each feed claw 18B is configured to be swingable by a shaft portion 18C fixed to the first frame. Since the lower end side of the feeding claw 18B is heavy, it returns to the protruding state by its own weight. The frame 17 is connected to a rotating plate 18D (see FIG. 2) that is eccentrically rotated by a motor M (see FIG. 2) such as a geared motor. With such a configuration, the frame body 17 reciprocates in the left-right direction every time the rotating plate 18D rotates once.

  When the frame body 17 moves forward, the feeding claw 18B protrudes from the frame body 17. As a result, the rack R is advanced by the tip of the feed claw 18B being hooked on the bottom rail. When the frame body 17 moves backward, the feeding claw 18B sinks into the frame body 17. Thereby, even if the frame 17 is retracted, the feed claw 18B is not caught on the rack R, and the rack R does not move from that position. Next, when the frame body 17 moves forward, the feed claw 18B protruding from the frame body 17 is caught by the crosspiece at the bottom of the rack R, and the rack R is moved forward. By repeating such an operation, the conveyor device 16 can send the rack R by a predetermined pitch along the pair of rack rails 14 and 14 in the transport direction.

  As shown in FIG. 2, in the first cleaning region S <b> 1, an upper cleaning nozzle (cleaning nozzle) 23 that sprays cleaning water from above the cleaning chamber S, and a lower side that sprays cleaning water from below the cleaning chamber S. A cleaning nozzle (cleaning nozzle) 24 is disposed. The upper cleaning nozzle 23 is connected to the cleaning pump P <b> 1 through the water supply pipe 25. The lower cleaning nozzle 24 is connected to the cleaning pump P <b> 2 via the water supply pipe 26. The suction ports of the cleaning pumps P <b> 1 and P <b> 2 communicate with the cleaning tank 20 and supply water from the cleaning tank 20 to the upper cleaning nozzle 23 and the lower cleaning nozzle 24. The washing tank 20 stores water after washing and rinsing, and excess washing water in the washing tank 20 is discharged to the outside by the overflow pipe 28. The overflow pipe 28 is configured to be removable from the bottom surface of the cleaning tank 20. Thereby, when the user removes the overflow pipe 28, the drain port into which the overflow pipe 28 has been inserted is exposed to the bottom surface of the cleaning tank 20, and the water stored in the cleaning tank 20 can be completely drained. .

  In the first rinsing region S2, an upper rinsing nozzle (rinsing nozzle) 31 that fountains rinsing water from above and a lower rinsing nozzle (rinsing nozzle) 32 that fountains rinsing water from below are arranged. The upper rinse nozzle 31 and the lower rinse nozzle 32 are connected to the rinse pump P3 via the water supply pipe 33. The suction port of the rinse pump P <b> 3 is connected to a hot water storage tank 34 provided in a gas booster (or electric booster) 35 disposed outside the housing 3. The hot water storage tank 34 stores clean water heated to a temperature suitable for rinsing by a gas booster 35 or the like. Water is supplied to the gas booster 35 and the like from an external water source via the heat exchange unit 80.

  In the cleaning chamber S, a cleaning switch 6A for detecting that the rack R has entered the first cleaning area S1 and a rinsing switch 6B for detecting that the rack R has entered the first rinsing area S2 are arranged. Yes. A detection signal when the cleaning switch 6A and the rinsing switch 6B detect the rack R is read by a controller described later. Thereby, it can be detected that the rack R has entered the first cleaning region S1 and the first rinsing region S2.

  The conveyor type dishwasher 1 includes a detergent supply device (not shown) for supplying a detergent into the first cleaning region S1 in the cleaning room S, and a rinse for supplying a rinse agent into the first rinse region S2 in the cleaning room S. An agent supply device (not shown).

  As shown in FIGS. 1 and 2, water vapor generated in the cleaning chamber S flows into the top plate 3d of the upper housing 3a upstream of the upper cleaning nozzle 23 and the lower cleaning nozzle 24 in the transport direction. A second exhaust port 3c is provided. The second exhaust port 3c is provided above the first cleaning region S1. The 2nd exhaust port 3c is connected to the 2nd opening part 71c of the duct 70 mentioned later.

  An inlet hood 50 is provided on the inlet 11a side of the internal space of the upper housing 3a. The inlet hood 50 is a U-shaped member formed of a material such as stainless steel, and includes a top plate 51, a front side plate 52, and a rear side plate 53. The top plate 51 is a part of the top plate of the housing 3 and is provided on an extension line of the top plate 3d of the upper housing 3a in the transport direction. The front side plate 52 covers the front surface in the front-rear direction, and the rear side plate 53 covers the rear surface in the front-rear direction. A space surrounded by the top plate 51, the front side plate 52, and the rear side plate 53 forms a second cleaning region S3. The entrance hood 50 is provided with a curtain 55. The upper end of the curtain 55 is fixed to the top plate 51 so as to close the entrance 50 a of the enclosed space of the entrance hood 50. The outlet 50b of the enclosure space of the inlet hood 50 communicates with the inlet 11a of the internal space of the upper housing 3a.

  An outlet hood 60 is provided on the outlet 11b side of the internal space of the upper housing 3a. The outlet hood 60 is a U-shaped member formed of a material such as stainless steel, and includes a top plate 61, a front side plate 62, and a rear side plate 63. The top plate 61 is a part of the top plate of the housing 3 and is provided on an extension line of the top plate 3d of the upper housing 3a in the transport direction. The front side plate 62 covers the front surface in the front-rear direction, and the rear side plate 63 covers the rear surface in the front-rear direction. A space surrounded by the top plate 61, the front side plate 62, and the rear side plate 63 forms a second rinse region S4. The exit hood 60 is provided with a curtain 65. The upper end of the curtain 65 is fixed to the top plate 61 so as to close the outlet 60 a of the enclosed space of the outlet hood 60. The entrance 60b of the enclosure space of the exit hood 60 communicates with the exit 11b of the internal space of the upper housing 3a.

  The top plate 61 of the outlet hood 60 is provided with a first exhaust port 61a through which water vapor generated in the cleaning chamber S flows downstream of the upper rinse nozzle 31 and the lower rinse nozzle 32 in the transport direction. The first exhaust port 61a is provided above the second rinse region S4. The first exhaust port 61a communicates with a first opening 71d of a duct 70 described later.

  On the top surface of the top plate 3d of the upper housing 3a that forms the cleaning chamber S, there is a duct 70 that extends along the transport direction (left-right direction) of the conveyor device 16 and through which water vapor generated in the cleaning chamber S flows. It is placed (provided). In the present embodiment, the duct 70 is fixed to the top plate 3d of the upper housing 3a in a state where it is placed. The area of the duct 70 is larger than the area of the heat exchange unit 80 in a plan view as viewed from above. The duct 70 communicates with a heat exchange unit 80 that condenses the water vapor in the cleaning chamber S and discharges the air whose water vapor content is reduced.

  As shown in FIGS. 2, 4, and 5, the duct 70 has a base portion 71 and a cover portion 73. The base portion 71 is attached to the top plate 3d of the upper housing 3a via the angle member 7 attached to the top plate 3d of the upper housing 3a. The base portion 71 has a bottom plate 71a having a rectangular shape in a plan view as viewed from above and below, and a frame plate 71b standing from an edge portion of the bottom plate 71a. The bottom plate 71a is disposed in contact with the top surface of the top plate 3d of the upper housing 3a.

  The frame plate 71b has a flange portion 71e projecting inward at the upper end. A packing 74 is fixed to the flange 71e which is the upper end of the frame plate 71b. Thereby, when the base part 71 is covered with the cover part 73, the packing 74 and the top plate 73a of the cover part 73 are in contact with each other, and water vapor is prevented from leaking from the inside of the duct 70 to the outside.

  A first opening 71d that communicates with the first exhaust port 61a and a second opening 71c that communicates with the second exhaust port 3c are formed in the bottom plate 71a. The first exhaust port 61a and the first opening 71d have the same size and shape. The second exhaust port 3c and the second opening 71c have the same size and shape. In the present embodiment, the position of the second opening 71c coincides with the position of the second exhaust port 3c of the housing 3, and the position of the first opening 71d is the first exhaust port 61a of the housing 3. The base portion 71 is disposed so as to match the position.

  The bottom plate 71a is provided with a first guide portion 75 and a wall portion 77. The first guide portion 75 includes a guide surface 75a, a first attachment portion 75b, a second attachment portion 75d, a connection portion 75c, and a side surface portion 75e. The first guide part 75 is a member for guiding the condensed water and the cleaning water discharged from the heat exchange unit 80 to the second opening 71c.

  The first guide part 75 forms a plate-like member made of a material such as stainless steel by pressing or the like. The guide surface 75a is disposed below the heat exchange unit 80, and is inclined downward from the first opening 71d side toward the second opening 71c side. The guide surface 75a has, for example, an inclined surface of 3 degrees with respect to the bottom plate 71a. The first attachment portion 75b and the second attachment portion 75d are portions fixed to the bottom plate 71a in the first guide portion 75. The connection portion 75c is a portion that connects the guide surface 75a and the second attachment portion 75d. The side surface portion 75e is erected from the front and rear portions of the guide surface 75a, and is a portion that guides condensed water and the like flowing through the guide surface 75a to the lower side of the guide surface 75a.

  The wall 77 is a member having an L-shaped cross section. The wall 77 is disposed so as to surround the four sides around the first opening 71d, and is erected from the bottom plate 71a. The example of the height of the wall part 77 is 15 mm-20 mm. The height of the wall portion 77 is set to a height at which, for example, the water discharged from the self-cleaning nozzle 86 described in detail later can be stored.

  A packing (not shown) is provided between the bottom plate 71 a and the wall 77. Thereby, it is possible to prevent water from entering the inside of the wall portion 77 from between the bottom plate 71 a and the wall portion 77. In the present embodiment, the wall portion 77 has been described by taking an example in which the wall portion 77 is disposed at a position away from the edge portion of the first opening portion 71d. However, the wall portion 77 is disposed along the edge portion of the first opening portion 71d. May be. That is, the dimensional shape of the inner shape of the wall 77 and the outer shape of the first opening 71d may be the same.

  The cover part 73 includes a top plate 73a and a side plate 73b that stands (hangs down) from the edge of the top plate 73a. A connection port 73c is formed in the top plate 73a. The cover part 73 is attached so as to cover the base part 71. The frame plate 71 b of the base portion 71 is provided so as to contact the side plate 73 b of the cover portion 73. A space S10 surrounded by the base portion 71 and the cover portion 73 of the duct 70 is a space through which water vapor generated in the cleaning chamber S flows. The heat exchange unit 80 is attached to the connection port 73c. The water vapor generated in the cleaning chamber S is supplied to the heat exchange unit 80 via the duct 70 (space S10). The cover portion 73 is provided such that the top plate 73a covers the opening of the base portion 71 and the side plate 73b covers the outside of the frame plate 71b.

  The heat exchange unit 80 is connected to the duct 70 and condenses the water vapor generated in the cleaning chamber S and discharges the air with the reduced amount of water vapor to the outside. As shown in FIGS. 2 and 7, the heat exchange unit 80 includes a housing 81, a heat exchanger 82, a fan 84, and a self-cleaning nozzle 86.

  The casing 81 is a cylindrical body having a rectangular shape when viewed from above and below. Inside the casing 81, there is formed an air flow passage S20 in which the amount of water vapor and water vapor introduced from the duct 70 is reduced. A heat exchanger 82 is disposed in the flow passage S20 extending in the vertical direction. A grill 85 having a plurality of openings is provided at the outlet 85a of the casing 81, which is the most downstream portion of the flow passage S20. Since the fan 85 is covered by the grill 85, it is possible to prevent an operator from coming into contact with the fan 84 and foreign matters from entering the heat exchange unit 80 while allowing air to be discharged.

  The heat exchanger 82 has fins, flow channel tubes (both not shown), and the like. A connection portion 82a to which a water supply pipe is connected is provided at one end of the channel pipe. The water supply pipe supplies water to the flow path pipe. Water is supplied to the water supply pipe from a water source (not shown). A connecting portion 82b to which a drain pipe is connected is provided at the other end of the channel pipe. The drain pipe discharges water that has passed through the flow path pipe. The drain pipe is connected to a hot water storage tank 34 (gas booster 35). That is, the water flowing through the flow path pipe of the heat exchanger 82 is discharged to the hot water storage tank 34. The heat exchanger 82 is in contact with water vapor flowing through the housing 81. The heat exchanger 82 performs heat exchange between water flowing through the flow path pipe and water vapor. When water vapor is condensed by the heat exchanger 82, condensed water is generated. The condensed water generated by the heat exchange unit 80 is discharged into the cleaning chamber S through the duct 70.

  A fan 84 is disposed above the heat exchanger 82. The fan 84 is disposed in the casing 81 in the vicinity of the outlet 85a of the water vapor (air) flow path S20. The fan 84 is fixed to a fixed plate 83 disposed so as to block the flow passage S20. An opening (not shown) is formed in the fixed plate 83, and the fan 84 is disposed so as to cover the opening. As a result, the water vapor generated in the cleaning chamber S is guided to the heat exchanger 82 through the duct 70, and the air containing the reduced amount of water vapor generated in the heat exchanger 82 is guided to the outside of the heat exchange unit 80. .

  In the present embodiment, three fans 84 are provided. The fans 84 are arranged at equal intervals along the circumferential direction around the fixed plate 83. The number of fans 84 is set as appropriate.

  Since the heat exchange unit 80 condenses the water vapor containing the dirt generated in the cleaning chamber S, dirt adheres to the inside of the heat exchange unit 80. For this reason, the self-cleaning nozzle 86 that flushes clean water to the heat exchanging unit 80 to wash away dirt adhered to the inside of the casing 81 and the heat exchanger 82 that form the outer shape of the heat exchanging unit 80, for example. Is provided. Water (cleaning water) ejected from the self-cleaning nozzle 86 is discharged into the cleaning chamber S through the duct 70 together with dirt.

  The self-cleaning nozzle 86 is fixed to the fixed plate 83. Specifically, the shaft portion 88 of the self-cleaning nozzle 86 is fixed to the fixed plate 83. The shaft portion 88 is fixed to the fixing plate 83 with screws. The shaft portion 88 is formed with an inner space for supplying water to the self-cleaning nozzle 86. A first pipe 89 having an inner space formed in a direction (horizontal direction) orthogonal to the axial direction is connected to the shaft portion 88. The first pipe 89 crosses the flow path S20. The first pipe 89 is connected to a second pipe 95 to which clean water is supplied from the outside. One end of the first pipe 89 opposite to the shaft portion 88 side is fixed to the housing 81 with a nut.

  As shown in FIG. 2, FIG. 6A and FIG. 6B, the tableware D is transported by the second exhaust port 3c and the conveyor device 16 in the internal space of the upper housing 3a, that is, the cleaning chamber S. The second guide portion 41 is provided between the region S16. The second guide portion 41 includes a guide surface 41a, a side surface 41b, a first attachment portion 41g, a first connection portion 41c, a second attachment portion 41h, and a second connection portion 41e. The 2nd guide part 41 forms the plate-shaped member formed from materials, such as stainless steel, by press work etc.

  The first attachment portion 41g and the second attachment portion 41h are portions that are fixed to the top plate 3d of the upper housing 3a. The first connection portion 41c is a portion that connects the first attachment portion 41g and the guide surface 41a, and the second connection portion 41e is a portion that connects the second attachment portion 41h and the guide surface 41a. The length of the first connection portion 41c in the vertical direction is longer than the length of the second connection portion 41e in the vertical direction. The guide surface 41a is disposed so as to straddle the region S16 in the front-rear direction, and is inclined downward from the front side toward the rear side. The side surface 41b is bent at both ends in the left-right direction of the guide surface 41a so as to stand upright from both ends in the left-right direction of the guide surface 41a.

  A connection portion between the first connection portion 41c and the guide surface 41a, that is, a portion bent from the first connection portion 41c to the guide surface 41a is formed with a plurality of hole portions 41d arranged in the left-right direction. . Condensation water and cleaning water discharged from the duct 70 (second exhaust port 3c) are guided to the guide surface 41a and the side surface 41b and fall downward from the hole 41d. The rear end of the guide surface 41 a extends to the outside of the rack rail 14. In other words, the position of the hole 41d in the front-rear direction is outside the rack rail 14. For this reason, the dew condensation water and the cleaning water falling downward from the hole 41 d fall to the outside of the rack rail 14.

  The first connection portion 41c and the second connection portion 41e are formed with a plurality of hole portions 41f arranged along the left-right direction. The plurality of holes 41f are formed as passages of water vapor exhausted from the second exhaust port 3c. Water vapor is exhausted from the back surface of the first attachment portion 41g and the second attachment portion 41h to the second exhaust port 3c through the hole portion 41f.

  The conveyor type dishwasher 1 is provided with an electrical box 90A in which a controller 90 that controls the overall operation of the conveyor type dishwasher 1 is incorporated. The controller 90 is a computer system or processor mounted on an integrated circuit. The controller 90 is connected to each other such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). Various operation processes in the conveyor type dishwasher 1 are executed by the CPU, for example, by loading a program stored in the ROM onto the RAM.

  Next, operation | movement of the conveyor type dishwasher 1 in this embodiment is demonstrated. The operator pushes the rack R in which the tableware D before washing is set into the washing room S of the conveyor type dishwasher 1 from the inlet 50 a of the inlet hood 50. When the rack R pushes down the cleaning switch 6A, which is a rack detection switch on the cleaning side, the cleaning switch 6A is turned ON. As a result, the cleaning pump P1 communicating with the upper cleaning nozzle 23 is turned on, and subsequently, the cleaning pump P2 communicating with the lower cleaning nozzle 24 is turned on.

  Subsequently, the motor M for driving the conveyor device 16 is turned on, and the feed claw 18B pushes the rack R, so that the rack R moves toward the outlet 60a side of the outlet hood 60 along the upper plate 14A of the rack rail 14. Are transported. The tableware D on the rack R continues to be cleaned by the upper cleaning nozzle 23 and the lower cleaning nozzle 24. Thereafter, when the rack R pushes down the rinse switch 6B, which is a rack detection switch on the rinse side, the rinse switch 6B is turned ON. As a result, the rinsing pump P3 is turned ON, and the rack R is conveyed by the conveyor device 16, while the tableware D is rinsed by the upper rinsing nozzle 31 and the lower rinsing nozzle 32, and the rack R is unloaded from the outlet 60a of the outlet hood 60. Is done. The motor M of the conveyor device 16 stops when both the cleaning pumps P1, P2 and the rinsing pump P3 are stopped.

  Water heated to a predetermined temperature is ejected from the upper cleaning nozzle 23 and the lower cleaning nozzle 24 to wash the tableware D, or water heated to a predetermined temperature from the upper rinse nozzle 31 and the lower rinse nozzle 32 When the tableware D is rinsed out, water vapor is generated in the cleaning chamber S. Water vapor generated in the cleaning chamber S is guided to the heat exchanger 82 by the fan 84 of the heat exchange unit 80. That is, the water vapor is exhausted from the cleaning chamber S through the first exhaust port 61a and the second exhaust port 3c, flows into the duct 70 through the first opening 71d and the second opening 71c, and the heat exchanger 82. Reach up to. The water vapor is condensed by the heat exchanger 82 and discharged from the heat exchange unit 80 as air in which the amount of water vapor contained is reduced.

  When water vapor is condensed by the heat exchanger 82, condensed water is generated. The condensed water generated by the heat exchange unit 80 is discharged into the cleaning chamber S through the duct 70. Specifically, the dew condensation water discharged from the heat exchange unit 80 drops on the guide surface 75a of the first guide portion 75, and the water guided by the guide surface 75a is second through the second opening 71c. The gas is discharged from the exhaust port 3c to the cleaning chamber S.

  The conveyor type dishwasher 1 of this embodiment can start the above-described self-cleaning mode by an operation by the operation display unit 92, for example. At this time, the water ejected from the self-cleaning nozzle 86 ishes away the dirt adhering to the inside of the casing 81 or the heat exchanger 82. Then, water (cleaning water) ejected from the self-cleaning nozzle 86 is discharged into the cleaning chamber S through the duct 70 together with dirt. Specifically, the cleaning water discharged from the heat exchange unit 80 drops on the guide surface 75a of the first guide portion 75, and the water guided by the guide surface 75a passes through the second opening 71c to the second. The gas is discharged from the exhaust port 3c to the cleaning chamber S.

  Condensation water and cleaning water discharged from the duct 70 to the cleaning chamber S are guided to the guide surface 41a of the second guide portion 41 provided in the cleaning chamber S and fall downward from the hole portion 41d. That is, the dew condensation water and the cleaning water fall to the outside of the rack rail 14.

  Next, the effect of the conveyor type dishwasher 1 of the said embodiment is demonstrated. As shown in FIGS. 2 and 4, in the conveyor type dishwasher 1 of the above-described embodiment, the guide surface 75 a is inclined downward from the first opening 71 d toward the second opening 71 c below the heat exchanger 82. Therefore, the condensed water dripped from the heat exchanger 82 is guided from the first opening 71d side to the second opening 71c side by the guide surface 75a. Accordingly, the dew condensation water is discharged from the second exhaust port 3c to the cleaning chamber S through the second opening 71c, and from the first exhaust port 61a to the cleaning chamber S through the first opening 71d. Condensed water will not be discharged. That is, the condensed water does not adhere to the tableware D that has been cleaned. Even if the condensed water dropped from the second exhaust port 3c adheres to the tableware D, the condensed water is washed away by the water ejected from the upper rinse nozzle 31 and the lower rinse nozzle 32. Thereby, in the conveyor type dishwasher 1 provided with the heat exchanger 82, it is possible to prevent the condensed water generated in the heat exchanger 82 from adhering to the tableware D that has been cleaned.

  Moreover, in the conveyor type dishwasher 1 of the said embodiment, the drainage path originally arrange | positioned in the washing | cleaning room, without providing the exclusive drainage path for discharging | emitting the dew condensation water which generate | occur | produces in the heat exchanger 82 outside the machine. Since the water is discharged outside the machine, the dew condensation water can be discharged at a low cost. Further, since the guide surface 75a of the first guide portion 75 can also serve to guide the steam generated in the cleaning chamber S to the heat exchanger 82, the guidance of the steam becomes smooth.

  In the conveyor type dishwasher 1 of the said embodiment, as FIG. 2, FIG. 6 (a) and FIG.6 (b) show, area | region S16 to which tableware D is conveyed by the 2nd exhaust port 3c and the conveyor apparatus 16 is shown. A second guide portion 41 having a guide surface 41a that is disposed so as to straddle the region S16 in the front-rear direction and is inclined downward from the front side toward the rear side is provided. Thereby, since the dew condensation water discharged | emitted from the 2nd exhaust port 3c to the washing | cleaning chamber S is induced | guided | derived to said area | region S16, it prevents that dew condensation water dripping at the tableware D currently conveyed by the conveyor apparatus 16 it can. Further, since the guide surface 41a guides condensed water or the like to the rear side opposite to the door 4, it is unsanitary for the user even after cleaning after opening and closing the door 4. Condensed water or the like is not attached, and the inside of the housing 3 can be cleaned hygienically.

  As shown in FIGS. 2 and 5, the duct 70 of the above embodiment has a wall portion 77 that is disposed so as to surround the first opening 71 d and is erected from the bottom plate 71 a that forms the duct 70. Yes. Thereby, even if the dew condensation water which generate | occur | produced in the heat exchanger 82 flows into the 1st opening part 71d side, it can prevent flowing into the 1st opening part 71d along the bottom face of the duct 70. FIG. Further, the dew condensation water is generated not only in the heat exchanger 82 but also on the inner wall such as the top plate 73 a of the cover portion 73 of the duct 70. In addition, water ejected from the self-cleaning nozzle 86 may flow into the duct 70. The wall 77 can prevent such condensed water or cleaning water from being discharged from the first exhaust port 61a through the first opening 71d.

  In the conveyor type dishwasher 1, as shown in FIG. 7, the shaft portion 88 of the self-cleaning nozzle 86 is fixed to the fixed plate 83, and the first pipe 89 connected to the shaft portion 88 is connected to the housing 81. It is fixed. Thereby, the first piping 89 functions as a frame, and the rigidity of the fixing plate 83 and the side plate of the housing 81 can be increased. Further, the moment due to the weight of the self-cleaning nozzle 86 is reduced as compared with the case where the self-cleaning nozzle 86 is connected to the first pipe 89 and is fixed to the housing 81 in a so-called single-supported state. As a result, the side plate of the housing 81 is deformed, and the position of the self-cleaning nozzle 86 is changed, so that it is possible to suppress the cleaning range from being narrowed. Further, by fixing the self-cleaning nozzle 86 to the fixing plate 83 extending along the horizontal plane, the shaft portion 88 of the self-cleaning nozzle 86 can be disposed perpendicular to the heat exchanger surface, so that heat exchange is performed. The cleaning water can be uniformly sprayed onto the vessel 82.

  Although one embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.

<Modification 1>
Instead of or in addition to the configuration of the wall 77 provided in the duct 70 of the conveyor type dishwasher 1 of the above embodiment, the opening surface in the first opening 71d is the opening in the second opening 71c in the vertical direction. You may form in a position higher than a surface. Specifically, as shown in FIG. 8, the bottom plate 71a may be formed with a rising portion 171a that rises upward from the bottom plate 71a in the extending direction. Thereby, the opening surface in the 1st opening part 71d becomes a position higher than the opening surface in the 2nd opening part 71c in a perpendicular direction. In this modification, the example has been described in which the upright portion 171a rises obliquely upward from the bottom plate 71a and has a portion extending in the horizontal direction. However, even though the upright portion 171a rises vertically vertically upward, Alternatively, a portion extending in the horizontal direction may not be formed. Also in this case, the same effects as those of the above embodiment and the wall portion 77 can be obtained.

<Modification 2>
As shown in FIG. 5 and FIG. 9A, the duct 70 of the conveyor type dishwasher 1 according to the modified example 2 includes the top of the cover portion 73 in the duct 70 in addition to the configuration of the above-described embodiment and modified example. A shielding part 177e that is disposed between the plate 73a and the first opening 71d and prevents the condensed water adhering to the top board 73a from dripping into the first opening 71d may be provided. The shielding part 177e is formed as a part of the condensed water fall prevention member 177. The shielding part 177e is disposed on the bottom plate 71a so as to incline upward from the first opening 71d toward the second opening 71c.

  The condensed water fall prevention member 177 includes a shielding part 177e, first support parts 177c and 177c, a second support part 177b, an intrusion prevention part 177a, and an attachment part 177d. The condensed water fall prevention member 177 is formed of a material such as stainless steel. The first support portions 177c and 177c and the second support portion 177b extend in the vertical direction from the bottom plate 71a and support the shielding portion 177e. The intrusion prevention unit 177a extends in the vertical direction from the bottom plate 71a. The first support portions 177c and 177c, the second support portion 177b, and the intrusion prevention portion 177a have a mounting portion 177d bent in the horizontal direction at the lower end in the vertical direction. A packing (not shown) is provided between the bottom plate 71a and the mounting portion 177d. Thereby, it can prevent that water penetrate | invades inside the 1st support part 177c, 177c, the 2nd support part 177b, and the intrusion prevention part 177a from between the baseplate 71a and the attaching part 177d.

  Such a condensed water fall prevention member 177 includes a first support part 177c, 177c, a second support part 177b, a first ventilation part 177f surrounded by the intrusion prevention part 177a, a first support part 177c, 177c, and an intrusion prevention part. A second ventilation part 177g surrounded by the part 177a and the shielding part 177e. The first ventilation part 177f is arranged so as to surround the first opening 71d.

  In the duct 70 in which the dew condensation water fall prevention member 177 is arranged on the bottom plate 71a, the water vapor generated in the cleaning chamber S is the first opening 71d, the first ventilation part 177f and the second ventilation part 177g of the condensation water fall prevention member 177. It enters the inside of the duct 70 via the. Condensed water adhering to the top plate 73a or the like of the cover portion 73 of the duct 70 is blocked from falling to the first exhaust port 61a by the shielding portion 177e. Thereby, dew condensation water can be prevented from being discharged to the first exhaust port 61a through the first opening 71d.

  Moreover, since the shielding part 177e is inclined upward from the first opening 71d toward the second opening 71c, that is, upwardly inclined toward the heat exchanger 82, the water vapor flowing from the first opening 71d is removed. The flow to the heat exchanger 82 is facilitated. Thus, since the condensed water fall prevention member 177 also serves as a guide for reducing the air resistance to the duct 70, there is no airflow loss due to air resistance even if the condensed water fall prevention member 177 is added.

  Although the shielding part 177e has been described as an example in which the shielding part 177e is formed as a part of the condensed water fall prevention member 177 in the second modification, the present invention is not limited to this. For example, as shown in FIG. 9B, the shielding part 277e may be formed so as to continue from a wall part 271a standing from the periphery of the first opening 71d. Also in this case, the shielding part 277e is preferably inclined upward from the first opening 71d toward the second opening 71c, that is, upwardly inclined toward the heat exchanger 82.

<Other variations>
In the said embodiment and modification, the 2nd exhaust port 3c gives and demonstrates the example provided in the conveyance direction upstream rather than the upper side washing nozzle 23 and the lower side washing nozzle 24 which eject the water which wash | cleans the tableware D. However, the second exhaust port 3c may be provided at any position as long as it is a cleaning region (the first cleaning region S1 and the second cleaning region S3). For example, it may be arranged on the top plate 3d of the cleaning chamber S between the upper cleaning nozzle 23 and the upper rinse nozzle 31 in the transport direction, or may be provided on the top plate 51 of the inlet hood 50. Moreover, when the 2nd exhaust port 3c is provided in the top plate 3d of the upper housing | casing 3a, the entrance hood 50 does not need to be provided.

  In the said embodiment and modification, although the 1st exhaust port 61a gave and demonstrated the example provided in the top plate 61 of the exit hood 60, the 1st exhaust port 61a is a rinse area | region (1st rinse area | region S2). And the second rinsing region S4) may be provided at any position. For example, the second rinsing region S4 may be provided on the top plate 3d of the cleaning chamber S downstream of the upper rinsing nozzle 31 and the lower rinsing nozzle 32. . In this case, the exit hood 60 may not be provided.

  In the embodiment and the modification described above, the example in which the second guide portion 41 is provided only below the second exhaust port 3c has been described. However, the second guide portion 41 may also be provided below the first exhaust port 61a. In the embodiment and the modification, the guide surface 41a has been described as being inclined downward from the front side to the rear side in the front-rear direction. However, the guide surface 41a may be inclined downward from the rear side to the front side. Good. Also in this case, it is possible to prevent the condensed water from dripping onto the tableware D being conveyed by the conveyor device 16.

  In the above-described embodiment and the modification, the duct 70 has been described by taking an example in which the base part 71 and the cover part 73 are configured. For example, a box-like member having an opening like the cover part 73 is used as a housing. The duct 70 may be arranged directly on the top surface of the top plate 3 and constituted by the top plate of the housing 3 and the box-shaped member. That is, a part of the duct 70 may be configured by the top plate of the housing 3. In this case, the first exhaust port 61 a provided in the top plate of the housing 3 is the same as the first opening 71 d provided in the duct 70, and the second exhaust port 3 c provided in the top plate of the housing 3 is provided. This is the same as the second opening 71 c provided in the duct 70.

  In the said embodiment or modification, although the example which applied this invention to the conveyor type dishwasher 1 of the structure conveyed with the tableware D accommodated in the rack R was given and demonstrated, for example, the tableware D is directly You may apply this invention to the dishwasher provided with the conveying apparatus (flight conveyor) which can convey the tableware D in the mounted state.

  The present invention may appropriately combine the contents described in the embodiment and other modifications.

  DESCRIPTION OF SYMBOLS 1 ... Conveyor type tableware washing machine (conveyor type washing machine), 3 ... Housing, 3c ... Second exhaust port, 3d ... Top plate, 23 ... Upper washing nozzle (washing nozzle), 24 ... Lower washing nozzle (washing nozzle) ), 31 ... Upper rinsing nozzle (rinsing nozzle), 32 ... Lower rinsing nozzle (rinsing nozzle), 41 ... Second guide part, 41a ... Guide surface, 41f ... Hole, 50 ... Inlet hood, 60 ... Outlet hood, 61 ... Top plate, 61a ... First exhaust port, 70 ... Duct, 71 ... Base part, 71c ... Second opening part, 71d ... First opening part, 73 ... Cover part, 75 ... First guide part, 75a ... Guide Surface, 77 ... Wall, 80 ... Heat exchange unit, 81 ... Housing, 82 ... Heat exchanger, 171a ... Upright part, 177 ... Condensed water fall prevention member, 177e, 277e ... Shielding part, D ... Tableware (to be cleaned) Stuff).

Claims (7)

The inside of the housing in which the washing area where the washing object is washed and the rinsing area where the washing object is rinsed is formed is conveyed by the conveyor device in the order of the washing area and the rinsing area. A conveyor type washing machine that performs washing and rinsing of objects,
A first opening that communicates with a first exhaust port provided above the rinse region, and a second opening that communicates with a second exhaust port provided above the cleaning region, A duct provided on the top of the top plate;
A heat exchanger that is connected to the duct and provided on the top plate of the duct, and that condenses water vapor generated inside the housing and discharges air in which the amount of water vapor contained is reduced, and
The duct is provided with a first guide portion disposed below the heat exchanger and having a guide surface inclined downward from the first opening toward the second opening. .   The conveyor type washer according to claim 1, wherein the first exhaust port is provided on the downstream side in the transport direction of the conveyor device with respect to a rinse nozzle that ejects water to rinse the object to be cleaned.   3. The conveyor type washer according to claim 1, wherein the second exhaust port is provided on the upstream side in the transport direction of the conveyor device with respect to a cleaning nozzle that ejects water for cleaning the object to be cleaned.   Between the second exhaust port and the region where the object to be cleaned is conveyed by the conveyor device, the region is disposed so as to straddle the front-rear direction orthogonal to the conveying direction and the vertical direction of the conveyor device. And the 2nd guide part which has a guide surface which inclines below along the said front-back direction is provided, The conveyor type washing machine as described in any one of Claims 1-3.   The conveyor type washing machine according to any one of claims 1 to 4, wherein the opening surface in the first opening is formed at a position higher than the opening surface in the second opening in the vertical direction.   The conveyor type cleaning according to any one of claims 1 to 4, wherein the duct is provided so as to surround the first opening, and is provided with a wall portion erected from a bottom surface forming the duct. Machine.   The duct is provided with a shielding portion that is disposed between the top plate forming the duct and the first opening, and prevents condensation water adhering to the top plate from dripping into the first opening. The conveyor type washing machine according to any one of claims 1 to 6.

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