JP2019201965A - Conveyor type washer - Google Patents

Abstract

To provide a conveyor type washer capable of enhancing rigidity of a top plate of a housing and suppressing deformation of the top plate of the housing by a heat exchanger with a simple configuration.SOLUTION: A conveyor type dish washer 1 includes: a duct 70 provided on a top surface of a top plate 3d of a housing 3 forming a washing chamber S, in which steam generated in the washing chamber is circulated; and a heat exchanger 82 connected to the top plate of the duct and provided on the top plate of the duct, which condenses steam and discharges air whose steam content is reduced. The duct includes a box-shaped base part 71 which opens upward perpendicularly and includes a bottom plate 71a in which openings 71c and 71d into which steam flows are formed, and a frame plate 71b erected from the bottom plate, and a cover part 73 for covering the openings of the base part.SELECTED DRAWING: Figure 4

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, in Patent Document 1, a heat exchanger (cooler) that dehumidifies and cools wet hot air introduced from the cleaning chamber is provided above the cleaning chamber in which the object to be cleaned is cleaned and rinsed. An automatic dishwasher is disclosed.

Japanese Utility Model Publication No. 6-39639

  The heat exchanger as described above is relatively heavy, and there is a risk that the top plate of the housing forming the cleaning chamber may be deformed or the strength may be insufficient. When the top plate of the housing is deformed, the state of attachment of the cleaning nozzle to the top plate changes, and the range of cleaning water ejected by the cleaning nozzle changes, which may result in the object being unable to be cleaned stably.

  Therefore, an object of the present invention is to provide a conveyor type washing machine that can increase the rigidity of the top plate of the housing with a simple configuration and can suppress deformation of the top plate of the housing by a heat exchanger. .

  The conveyor type cleaning machine of the present invention is a conveyor type cleaning machine that performs cleaning and rinsing of an object to be cleaned while conveying the object to be cleaned through the inside of the cleaning chamber by a conveyor device. A heat exchanger that is installed on the top surface of the top plate and is connected to the top plate of the duct through which the water vapor generated in the cleaning room flows, and heat exchanger that condenses the water vapor and discharges the air that contains less water vapor. And the duct has a bottom plate in which an opening through which water vapor flows is formed and a frame plate standing from the bottom plate, and covers a box-like base portion that opens vertically upward, and an opening in the base portion And a cover part.

  In the conveyor type washing machine having this configuration, the top plate of the casing is formed by a simple configuration in which a duct having a base portion composed of a bottom plate and a frame plate is arranged on the top surface of the top plate of the casing forming the cleaning chamber. Increases rigidity. Since the heat exchanger is disposed via a duct on the top plate of the casing with increased rigidity, deformation of the top plate of the casing can be suppressed. That is, since the attachment state of the cleaning nozzle to the top plate can be maintained, the object to be cleaned can be stably cleaned.

  In the conveyor type washing machine of the present invention, the frame plate may have a flange that protrudes inward at the upper end. According to this configuration, since the path from the inside of the duct to the outside can be relatively long, the sealing performance can be improved.

  In the conveyor type washing machine of the present invention, a sealing material may be disposed between the collar portion and the cover portion. According to this configuration, the sealing performance can be improved.

  In the conveyor type washing machine of the present invention, the cover portion includes a lid plate and a side plate standing from the lid plate, and the cover portion covers the opening and the side plate covers the outside of the frame plate. It may be provided as follows. According to this configuration, since the side plate covers the outside of the frame plate, even if water vapor leaks from between the side plate and the cover plate, the side plate can prevent the water vapor from leaking to the outside. As a result, the sealing performance can be further improved.

  In the conveyor type washing machine of the present invention, the area of the duct may be larger than the area of the heat exchanger in a plan view as viewed from above. According to this configuration, since the duct is fixed in a wide area with respect to the top plate of the housing as compared with the heat exchanger, the weight of the heat exchanger does not act locally on a part of the top plate. As a result, it can suppress more reliably that a top plate deform | transforms.

  ADVANTAGE OF THE INVENTION According to this invention, the rigidity of the top plate of a housing | casing can be improved with a simple structure and the deformation | transformation of the top plate of a housing | casing by a heat exchanger can be suppressed.

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.

  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 S is formed therein. The housing 3 is supported by four legs 5. The housing 3 has a two-stage structure including an upper housing 3 a that forms the cleaning chamber S and a lower housing 3 b that includes the cleaning tank 20. 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 casing 3 is provided with a curtain 12A and a curtain 12B. The upper end of the curtain 12A is fixed to the casing 3 so as to close the inlet 11a of the internal space (cleaning chamber S) of the casing 3. The upper end of the curtain 12 </ b> B is fixed to the housing 3 so as to close the outlet 11 b of the internal space of the housing 3. 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. On the front surface of the housing 3 in the front-rear direction, an opening / closing door 4 that contributes to opening / closing of the internal space of the cleaning chamber S is provided.

  The internal space of the housing 3 is partitioned by a curtain 12C. In the internal space of the housing 3, a cleaning region S1 is formed on the inlet 11a side and a 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 housing 3, a pair of rack rails 14, 14 are provided in the front-rear direction so as to bridge between the soil table T 1 and the clean table T 2. 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, the cleaning region S <b> 1 includes an upper cleaning nozzle (cleaning nozzle) 23 for spraying cleaning water from above the cleaning chamber S, and a lower cleaning nozzle for spraying cleaning water from below the cleaning chamber S. (Cleaning nozzle) 24 is arranged. 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 rinsing region S2, an upper rinsing nozzle (rinsing nozzle) 31 for spraying rinsing water from above and a lower rinsing nozzle (rinsing nozzle) 32 for spraying 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 cleaning area S1 and a rinsing switch 6B for detecting that the rack R has entered the rinsing area S2 are arranged. 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 cleaning area S1 and the rinsing area S2.

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

  As shown in FIGS. 1 and 2, the water vapor generated in the cleaning chamber S flows into the top plate 3 d of the housing 3 upstream of the upper cleaning nozzle 23 and the lower cleaning nozzle 24 in the transport direction. Two exhaust ports 3c are provided. The 2nd exhaust port 3c is connected to the 2nd opening part 71c of the duct 70 mentioned later. The top plate 3d is a thin plate, and an example of the thickness is 1.0 m to 1.5 mm.

  An inlet hood 50 is provided on the inlet 11 a side of the internal space of the housing 3. 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 provided on an extension line of the top plate 3d of the housing 3 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. The top plate 51, the front side plate 52, and the rear side plate 53 form a surrounding space S3 of the inlet hood 50. 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 block the inlet 50a of the surrounding space S3 of the inlet hood 50. The outlet 50b of the enclosure space S3 of the inlet hood 50 communicates with the inlet 11a of the internal space of the housing 3.

  An outlet hood 60 is provided on the outlet 11 b side of the internal space of the housing 3. 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 provided on an extension line of the top plate 3d of the housing 3 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. The top plate 61, the front side plate 62, and the rear side plate 63 form an enclosed space S4 of the outlet hood 60. 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 block the outlet 60 a of the surrounding space S <b> 4 of the outlet hood 60. The inlet 60b of the enclosure space S4 of the outlet hood 60 communicates with the outlet 11b of the internal space of the housing 3.

  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 communicates with a first opening 71d of a duct 70 described later.

  On the top surface of the top plate 3d of the casing 3 that forms the cleaning chamber S, 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 circulates is mounted. Is installed (provided). In this embodiment, the duct 70 is fixed to the top plate 3d of the housing 3 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 3 d of the housing 3 via the angle member 7 attached to the top plate 3 d of the housing 3. 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 71 a is disposed in contact with the top surface of the top plate 3 d of the housing 3.

  The frame plate 71b has a flange portion 71e projecting inward at the upper end. A packing (seal material) 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 (cover 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. 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 FIG. 2, 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, an air flow passage in which the amount of water vapor and water vapor introduced from the duct 70 is reduced is formed. The frame plate 71b disposed on the front side of the base portion 71 in a plan view viewed from the vertical direction is disposed directly below the front surface of the casing 81, and the frame plate 71b disposed on the rear side of the base portion 71 is Arranged just below the rear surface of the body 81. In addition, the flange portion 71e formed on the frame plate 71b supports the bottom surface of the housing 81 from below (via the top plate 73a of the cover portion 73).

  A heat exchanger 82 is disposed in the flow path 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. 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 to which a water supply pipe is connected is provided at one end of the flow 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). The other end of the flow channel pipe is provided with a connection portion to which a drain pipe is connected. 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. The fan 84 is fixed to a fixed plate 83 arranged so as to block the flow path. 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.

  As shown in FIG. 2, in the internal space of the upper housing 3 a, that is, the cleaning chamber S, the second guide portion is provided between the second exhaust port 3 c and the region S <b> 16 where the tableware D is conveyed by the conveyor device 16. 41 is provided. The 2nd guide part 41 forms the plate-shaped member formed from materials, such as stainless steel, by press work etc. The 2nd guide part 41 is arrange | positioned so that area | region S16 may be straddle | crossed in the front-back direction, and has a guide surface which inclines below toward the back side from the front side. Condensation water and cleaning water discharged from the duct 70 (second exhaust port 3c) are guided to the guide surface and fall downward. The rear end of the guide surface extends to the outside of the rack rail 14. For this reason, the dew condensation water and the cleaning water falling downward from the guide surface fall to the outside of the rack rail 14.

  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, the effect of the conveyor type dishwasher 1 of the said embodiment is demonstrated. As shown in FIGS. 2 and 4, the top plate 3 d of the conveyor type dishwasher 1 is not only thin (1.0 m to 1.5 mm) as described above, but also a plane viewed from the top and bottom. Large in visual size. Therefore, it is not strong against the weight acting from the top surface. In this respect, in the conveyor type dishwasher 1 according to the above embodiment, the base portion including the bottom plate 71a and the frame plate 71b erected from the bottom plate 71a on the top surface of the top plate 3d of the housing 3 forming the cleaning room S. The rigidity of the top plate 3d of the housing 30 is enhanced by a simple configuration in which the duct 70 having the 71 is disposed. Since the heat exchanger 82 is disposed via the duct 70 on the top plate 3d of the housing 3 with increased rigidity, deformation of the top plate 3d of the housing 3 can be suppressed. That is, since the attachment state of the upper washing nozzle 23 with respect to the top plate 3d can be maintained, the tableware D can be washed stably.

  In the conveyor type dishwasher 1 of the above embodiment, the frame plate 71b has the flange portion 71e projecting inward at the upper end, so that the path from the inside of the duct 70 to the outside can be made relatively long. it can. Thereby, the sealing performance of the duct 70 can be improved. Moreover, since the packing 74 is arrange | positioned between the collar part 71e and the top plate 73a of the cover part 73, a sealing performance can be improved.

  In the conveyor type dishwasher 1 of the said embodiment, the side board 73b of the cover part 73 is provided so that the outer side of the frame board 71b may be covered. Thereby, even if water vapor leaks from between the frame plate 71b and the top plate 73a, it is possible to prevent the water vapor from leaking to the outside by the side plate 73b. As a result, the sealing performance can be further improved.

  In the conveyor type dishwasher 1 of the above embodiment, 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. Thereby, compared with the heat exchange unit 80, since the duct 70 is fixed in a wide area with respect to the top plate 3d of the housing 3, the weight of the heat exchange unit 80 acts locally on a part of the top plate 3d. There is no. As a result, it can suppress more reliably that the top plate 3d deform | transforms.

  In the conveyor type dishwasher 1 of the above embodiment, the frame plate 71b disposed on the front side of the base portion 71 in a plan view viewed from the top and bottom direction is disposed directly below the front surface of the housing 81, and The frame plate 71 b disposed on the rear side is disposed directly below the rear surface of the housing 81. Since the frame plate 71b stands vertically from the bottom plate 71a, the frame plate 71b has a strong structure against weight. For this reason, the top plate of the cover part 73 is not bent. The weight of the heat exchange unit 80 including the heat exchanger 82 is transmitted from the frame plate 71b to the top plate 3d of the housing 3 via the bottom plate 71a. That is, the weight of the heat exchange unit 80 is dispersed and acts on the top plate 3 d of the housing 3.

  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.

  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 upstream of the upper rinse nozzle 31 and the lower rinse nozzle 32. 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.

  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 the upper side rinse nozzle 31 and the lower side rinse. As long as it is downstream from the nozzle 32, it may be provided at any position. For example, it may be provided on the top plate 3d of the cleaning chamber S on the downstream side of the upper rinse nozzle 31 and the lower rinse nozzle 32.

  In the said embodiment and modification, the frame board 71b gave and demonstrated the example which has the collar part 71e which protrudes inside in the upper end, However, Packing is carried out at the upper end of the frame board 71b in which the collar part 71e is not formed. 74 may be in contact with the top plate 73 a of the cover portion 73. Moreover, in the said embodiment and modification, the packing 74 does not necessarily need to be provided.

  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 dishwasher (conveyor type washing machine), 3 ... Housing, 3c ... Second exhaust port, 3d ... Top plate, 50 ... Inlet hood, 60 ... Outlet hood, 61 ... Top plate, 61a ... First Exhaust port, 70 ... duct, 71 ... base part, 71a ... bottom plate, 71b ... frame plate, 71c ... second opening part, 71d ... first opening part, 71e ... collar part, 73 ... cover part, 73a ... top plate ( Lid plate), 73b ... side plates, 74 ... packing (seal material), 80 ... heat exchange unit, 81 ... housing, 82 ... heat exchanger, D ... tableware (object to be cleaned).

Claims (5)

A conveyor type washing machine that performs washing and rinsing of the object to be cleaned while conveying the object to be cleaned by a conveyor device,
Provided on the top surface of the top plate of the housing forming the cleaning chamber, a duct through which water vapor generated in the cleaning chamber flows,
A heat exchanger that is connected to the top plate of the duct and is provided on the top plate of the duct, and that condenses the water vapor and discharges air with a reduced amount of water vapor included, and
The duct is
A box-like base portion having a bottom plate formed with an opening through which the water vapor flows and a frame plate standing from the bottom plate, and opening vertically upward;
A conveyor type washing machine having a cover portion covering the opening of the base portion.   The conveyor-type washing machine according to claim 1, wherein the frame plate has a flange portion projecting inward at an upper end.   The conveyor type washing machine according to claim 2, wherein a sealing material is disposed between the flange portion and the cover portion. The cover portion includes a lid plate and a side plate standing from the lid plate,
The said cover part is a conveyor type washing machine as described in any one of Claims 1-3 provided so that the said cover plate may cover the said opening, and the said side plate may cover the outer side of the said frame plate.   The conveyor type washing machine according to any one of claims 1 to 4, wherein an area of the duct is larger than an area of the heat exchanger in a plan view viewed from vertically above.

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