JP2894545B2 - Automatic dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing apparatus for washing an object to be washed such as tableware and the like, and stores the object to be washed in a rack without carrying out preliminary washing such as pickling and hand washing, and carries the object into the washing apparatus. ,
The present invention relates to an automatic dishwashing apparatus for automatically cleaning and draining and drying an object to be washed by sequentially passing the processing chambers by a rack transport mechanism.

[0002]

2. Description of the Related Art Conventionally, in a conveyor-type dishwasher, tableware or a rack containing tableware is placed on a conveyor, and the tableware and the like are sequentially transported to each processing chamber by the conveyor. 2. Description of the Related Art There is known a cleaning apparatus that performs cleaning under pressure by spraying cleaning water from a plurality of shower tubes provided above and below.

[0003] In the case of a conveyor-type cleaning apparatus, since the conveyor conveys dishes and the like at a constant speed, if dirt is firmly attached to the dishes and the like, the conveyer is carried out without obtaining a sufficient cleaning effect. There was a problem that it would. Therefore, in order to remove scorched or strongly adhered dirt,
They wash their hands and put their hands on them.

In a conventional conveyor-type cleaning apparatus, a plurality of shower pipes must be arranged above and below the conveyor. In addition, when pressurized shower cleaning is performed at a constant pressure, each shower pipe is not provided with a shower pipe. A constant pressure pump is connected to each to maintain a constant shower pressure, or a high pressure pump is connected to multiple shower tubes branched from one shower tube to maintain a constant shower pressure. This requires excessive equipment and energy conservation.

Conventionally, each of the processing chambers is separated by a blind-shaped partition made of a flexible material such as vinyl. However, the processing chambers cannot withstand the water pressure in each of the processing chambers. There have also been problems in that water droplets leak out and the dishes come into contact with the vinyl or the like and become soiled.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a washing machine such as tableware in a rack on which the tableware can be placed without swinging or falling. And each rack is sequentially transported and retained in each processing chamber by the rack transport mechanism, and the upper surface of the rack,
A shower pipe is provided in each of the detergent cleaning chamber and the hot water cleaning chamber so as to surround the lower surface and both side faces, and is integrally formed by being connected to the shower pipe in the draining and drying chamber and connected to the shower pipe, and is conveyed above the rack. Reciprocating means for each processing chamber before and after in the transport direction with the air pipe formed across the path
It is an object of the present invention to provide an automatic dishwasher for performing shower washing and air drainage drying while reciprocating .

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has the constitution described in the claims.

[0008]

The object to be washed, such as tableware, is accommodated in the rack so as not to swing or overturn while being supported by the support bars in a gap between a plurality of support bars provided to protrude from the rack bottom surface.

[0009] The rack accommodating the dishes is carried into the automatic dishwashing apparatus from the carry-in entrance and placed. The interior of the automatic dishwashing apparatus includes a carry-in room, a detergent washing room, a hot water washing room, a draining / drying room, and a carry-out port, and each processing room is partitioned by a partition member. After the cleaning or drying processing in each processing chamber is completed, the partitioning member is simultaneously opened between the processing chambers, and is controlled by a control device so that the rack is transported and placed in the next chamber by the rack transport mechanism and then closed at the same time. Have been.

The rack carried into the carry-in room is locked by a rack transfer mechanism by a rack locking means projecting from the entrance of each processing chamber, and is carried into a predetermined position in the next chamber (detergent cleaning chamber) and is left there. You. After the rack is transported, the rack locking means returns to the original position by the reciprocating means while the rack remains.

In the detergent washing room, at the center of the rack,
From the plurality of shower nozzles formed in the shower tube arranged to surround the upper surface, lower surface, and both side surfaces of the rack, a cleaning liquid in which a cleaning agent is melted in hot water or hot water heated by a heater is sprayed onto tableware, Pressurized shower cleaning is performed for a predetermined time. Shower pipe is conveyed is formed in the air tube integral with the shower pipe and draining the drying chamber below hot wash chamber, Shinano inject cleaning liquid, et al., The reciprocating means, the predetermined time, the rack of one end to the other end Reciprocate back and forth
Move .

After completion of the cleaning process in the detergent cleaning chamber, the rack is carried into a hot water cleaning chamber, and a plurality of shower nozzles formed in a shower pipe configured similarly to the shower pipe provided in the detergent cleaning chamber. Then, the hot water heated by the heater is sprayed onto the object to be washed such as tableware, and pressure shower washing is performed. The shower pipe is reciprocated back and forth in the transport direction from one end of the rack to the other end by a reciprocating means for a predetermined time while injecting hot water in the same manner as in the detergent cleaning chamber.
Move .

After the washing process in the hot water washing room is completed, a plurality of racks are carried into the draining / drying room and formed in a plurality of air tubes integrally connected to the shower tubes provided in the detergent washing room and the hot water washing room. Draining and drying is performed for a predetermined time by the air jetted from the air nozzle. The air pipe is disposed above the center of the rack across the transport path, and the air pressurized by the blower is jetted downward from the air nozzle to drain and dry dishes and the like. The air pipe is moved back and forth in the transport direction by
It is reciprocated .

After the drying process in the draining drying chamber is completed, the rack is carried out from the carry-out port and stored in a separately provided rack storage shelf.

Although the movement of one rack in the automatic dishwashing apparatus according to the present invention has been described above, the same processing operation is sequentially performed for all racks in each processing chamber.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described below in detail with reference to the drawings. 1 to 5, an automatic dishwashing apparatus 1 according to the present invention includes a loading chamber 7 having a loading port 5 for loading a rack 3 on which an object to be washed such as tableware can be placed without swinging or falling over; A plurality of detergent cleaning chambers 13 for pressurized shower cleaning the object to be cleaned accommodated in the rack 3 with a cleaning liquid jetted from a shower pipe 11 provided with a plurality of shower nozzles 9, and a plurality of shower nozzles 15 for cleaning the object to be cleaned. A hot water washing chamber 19 for pressurized shower washing with hot water sprayed from shower pipes 17 provided at a plurality of locations, and a drainer for drying the object to be cleaned with air sprayed from air pipes 23 provided at a plurality of locations by an air nozzle 21. A drying chamber 25, an outlet 27 for unloading the rack 3 after each of the above processes, a rack transport mechanism 29 for sequentially transporting and unloading the rack 3 in the transport direction, and a transport and partitioning member for the rack 3 Closing and detergent washing in the processing chamber, is configured by arranging a control unit 31 for controlling the hot water washing and draining drying.

The carry-in room 7 is located in front of the automatic dishwashing apparatus 1 and has a carry-in entrance 5 large enough to carry the rack 3 open in the carrying direction.

The rack 3 introduced from the entrance 5 is shown in FIG.
Is placed on the transfer table 33 shown in FIG. The transfer table 33 is composed of a plurality of strip-shaped plate members 35 erected in the transfer direction from the entrance of the loading chamber 7 to the outlet port 27, and is reinforced at a plurality of locations in the middle at a slightly lower position by the strip-shaped reinforcing members 37. ing.

The rack 3 placed on the transfer table 33 is transferred into the detergent cleaning chamber 13 by the rack transfer mechanism 29. The rack transport mechanism 29 has the following configuration. Rails 39 are mounted on both sides of the carriage 33 in parallel from the entrance of the loading chamber 5 to the vicinity of the entrance of the draining / drying chamber 25, and on the rail 39, rotatable wheels 41 are provided at a plurality of locations on both sides. 43 is the downward direction of the draining drying chamber 25
The reciprocating hand stage 45 provided in the location reciprocally travels in the longitudinal conveying direction. Locking means 47 protruding at a plurality of places on both sides of the carriage 43 lock the rack 3 from the rear part.
The rack 3 is transported by the reciprocating means 45 from the original locking position to the next processing chamber entrance.

The carriage 43 on the rail 39 is connected to the carrier 33
Is formed to be the same height as
Locking means 47 protrudingly opposed to four places on both side portions of 3 are rotatably supported by a support shaft, and are reciprocally movable.
By driving the step 45, the rack 3 is locked in a state where the rack 3 is restrained in the transport direction, and when returning to the original position, the rack 3 is rotated in the transport direction without contacting and resisting the rack 3. Then, after detaching from the rack 3, it is configured to rotate and project again by a spring or the like.

The reciprocating means 45 has the following configuration. A sprocket 49 is rotatably supported on an output shaft of a motor 48 provided with a waterproof guard via a transmission mechanism such as a gear. A sprocket 51 rotatably supported opposite to the sprocket 49 is rotatably supported. It is provided at intervals. A timing belt 53 is wound around the sprockets 49 and 51, and is connected to the carriage 43 by a connecting piece 55 provided at a predetermined position of the timing belt 53. The timing belt 5 is driven by the drive of the electric motor 48.
3 is moved to a predetermined position, the limit switch 57 drives the motor 48 to rotate in the opposite direction,
Trolley 43 connected by a timing belt
Travels back and forth in the transport direction. Timing belt 5
3 is controlled by a limit switch 57 so that the rack 3 is conveyed to the next processing chamber by the locking means 47 provided on the cart 43, and reciprocates by a distance for returning the cart 43 to the original position. After completion of the cleaning and drying processes in each processing chamber for a predetermined time, the control means 31 is controlled to drive again.

When the rack 3 is transported and placed in the detergent cleaning chamber 13, the processing chambers are simultaneously closed and sealed by the partition member 59. The partition member 59 is a plate-shaped partition plate, which is guided by guide grooves vertically attached to the inner wall of each processing chamber,
The partition member opening / closing means 61 is slid up and down to open and close. The partition member 59 is suspended from two upper ends thereof with a stainless steel thread, and is fixed to a sliding frame 67 via a pulley 65. The sliding frame 67 is provided on both sides inside the upper part of the automatic dishwashing apparatus 1 from the entrance of the detergent washing chamber 13 to the transfer port 27.
Until rail 69 guide groove to be fitted are formed at both ends of the sliding frame 67 is mounted parallel to the conveying direction, the reciprocating
The sliding frame 67 and the connecting piece 75 fixed to the timing belt 73 are connected by the reciprocating moving means 71 configured similarly to the moving means 45, and reciprocated while being guided by the guide grooves.

The detergent cleaning chamber 13 has a shower cleaning chamber 77 at the upper part and a cleaning liquid tank 79 at the lower part. As shown in FIGS. 2 and 4, the shower tube 11 is disposed in the shower cleaning room 77 so as to surround the rack 3 placed on the carrier 33. Inside, a number of shower nozzles 9 are attached so that the cleaning liquid is sprayed onto the object to be cleaned in the rack 3.

The shower tube 11, the air tube 23 and the connecting member 81 of the shower tube 17 and draining the drying chamber 25 of the hot water wash chamber 19 are formed integrally, said reciprocating means 4
5 is installed above the draining / drying device 25 configured in the same manner as
By means of the reciprocating moving means 83, the wheels 87 provided rotatably at a plurality of places on the separately provided rail 85,
Back and forth travel in the longitudinal conveying direction, while spraying the cleaning liquid from the shower nozzle 9, a shower pipe 11 moves from the front of the rack 3 to the rear.

A cleaning liquid tank 79 stores a cleaning liquid in which a cleaning agent is melted in warm water heated to a predetermined temperature by a heater 89, and the cleaning liquid is supplied from a water supply pipe 93 provided separately by a 1.5 kw pump 91 to a shower pipe. The medium to be washed is washed by injecting a medium pressure shower to the object 11 to wash the object to be washed, and the injecting washing liquid is filtered through a filter 95 to remove dirt, flows into the washing liquid tank 79 and is heated to a predetermined temperature, Circulated by a pump 91.

After the cleaning in the detergent cleaning chamber 13 is completed, the partition member 59 is lifted upward by the partition member opening / closing means 61, and the rack 3 is carried into the hot water cleaning chamber 19 by the rack transport mechanism 29 and is placed. The partition member 59 is pulled down, and each processing chamber is sealed.

The hot water cleaning chamber 19 has a shower cleaning chamber 97 at the upper part and a hot water tank 99 at the lower part. As shown in FIG. 4, the shower tube 17 is provided in the shower cleaning room 99 so as to surround the rack 3 placed on the carrier 33. A large number of shower nozzles 15 are mounted on the upper and lower sides of the shower pipe 17 and on the inside of both sides so that hot water is sprayed on the object to be cleaned in the rack 3. Shower pipe 17 is formed integrally with the air tube 23 of the shower tube 11 and draining the drying chamber 25 of the detergent wash chamber 13, the reciprocating
By the moving means 83, while spraying hot water from the shower nozzle 15, Ru <br/> be moved back and forth from the front of the rack 3 to the rear.

Hot water heated to a predetermined temperature by a heater 101 is stored in a hot water tank 99, and the hot water is supplied by a 1.5 kw pump 103 to a water pipe 105 provided separately.
Hot water sprayed from the shower nozzle 15 is filtered through a filter 107 to remove dirt, flows into a hot water tank 99 and is heated to a predetermined temperature,
Circulated by

After the washing and sterilization treatment in the hot water washing chamber 19 is completed, the partition member 59 is lifted upward by the partition member opening / closing means 61, and the rack 3 is carried into the draining / drying chamber 25 by the rack transport mechanism 29. After that, the partition member 59
Is pulled down, and each processing chamber is sealed.

The draining / drying chamber 25 has a drying chamber 109 at the top,
The lower part is a drainage tank 111. As shown in FIG. 4, an air pipe 23 is provided in the upper part of the drying chamber 109 so as to traverse the transport path, and a number of air nozzles 21 are provided on the lower surface of the air pipe 23 in the rack 3. It is mounted so that air is sprayed on the object to be cleaned. Air tube 23 is formed integrally with the shower tube 17 of the shower tube 11 and a hot water washing chamber 19 of the detergent wash chamber 13, the reciprocating means 8
3, the air nozzle 21 moves back and forth from the front to the rear of the rack 3 while injecting air from the air nozzle 21.

In the drain tank 111, water that has been drained by the injection of air is stored and drained from a drain port. A 0.4 kW blower 113 is provided below the drainage tank, and air is sent to the air pipe 23 by a separately provided blower tube 115.

After the completion of the processing in the draining / drying chamber 25, the partition member 59 is lifted upward by the partition member opening / closing means 61, and the rack 3 is moved by the rack transport mechanism 29 to the carry-out port 2.
7 to be carried out.

Although the cleaning process of one rack has been mainly described above, the racks 3 are carried in and loaded into the carry-in room 7, the detergent washing room 13, the hot water washing room 19 and the draining / drying room 25, respectively. Processing is performed in each processing chamber.

The rack 3 used in the present invention
Does not leak the objects to be washed such as tableware as shown in FIG. It is a cage having a hole large enough to perform shower washing, and has a self-weight and strength that does not move against the reciprocation of the carriage 43 and the shower pressure.

At the bottom of the rack 3, a plurality of support rods 117 for supporting objects to be washed, such as dishes, are erected, and the objects to be washed, such as dishes, are accommodated by the support rods 117. Is done.

In this embodiment, the rack transport mechanism 29
Is configured to reciprocate by an electric motor 48 and a limit switch 57, but is reciprocated by an air cylinder or the like.
Moving means can also be used.

The rack transport mechanism 29 and the reciprocating hand
In the step 83, the wheels 41, 87 reciprocate on the rails 39, 85, and the carriage 43 and the shower pipes 11, 17 and the like move back and forth. It may be moved back and forth by sliding inside.

Sensors are provided in the detergent cleaning chamber 13, the hot water cleaning chamber 19, and the draining / drying chamber 25, respectively. When the rack 3 is not carried into each processing chamber, the pump 9 is used.
The control means 31 can also control such that the blowers 1 and 103 and the blower 113 are not driven.

Further, the rack 3 carried out from the carry-out port 27 can be placed on a separately provided rack transfer vehicle (not shown) and automatically stored in a rack storage shelf.

The rack storage shelves have a plurality of shelves for storing and mounting the racks 3 arranged in a vertical direction. Each of the shelves has a driving roller for sequentially transporting the racks 3 transported by the rack transport vehicle at an entrance thereof. A roller conveyor is provided in which the idler rollers for transporting the rack 3 conveyed by the drive rollers in the transport direction are provided slightly inclined. A sensor is provided at each shelf entrance, and is controlled by the control means so that the drive roller is driven only when a rack to be transferred is detected.

The rack transport vehicle includes a conveyor table provided with a drive roller or a belt for loading and extruding and transporting the rack 3 carried out from the carry-out port 27, and a cart moving from the carry-out port 27 to the rack storage shelf entrance. Moving means such as a cylinder for moving the conveyor table up and down to the height of each floor of the rack storage shelf and using a cylinder or the like; a position confirmation sensor for the conveyor table and the cart; and a rack storage shelf A rack confirmation sensor for detecting the presence or absence of a rack inside, and controlling the extrusion of the rack 3 by the conveyor base, the movement of the carriage, and the vertical movement of the conveyor base to store the rack in any space of the rack storage shelf. Control means.

The rack 3 carried out from the carry-out port 27 is placed on the conveyor table of the rack transfer vehicle, moves to the rack storage shelf, moves the conveyor table up and down, and detects the space of the rack storage shelf. It is extruded and conveyed to the storage shelf by the drive roller of the conveyor stand.

Further, a conveyor is provided so as to connect the two from the carry-out port 27 to the carry-in port 5, and the rack 3 to be subjected to the cleaning process and the rack 3 after the cleaning process are discharged on the conveyor. You can also make it.

According to the present invention, the racks accommodating the objects to be washed such as tableware are sequentially transported to a predetermined position by the rack transport mechanism and kept in each processing chamber for a predetermined time. Sufficient cleaning effect can be obtained even for strong dirt attached to the like.

Each shower tube provided in the detergent washing room and the hot water washing room and the air tube provided in the draining / drying room are connected and integrally formed, and the front end of the rack is washed and drained and dried. Since it moves back and forth to the rear end in the transport direction, it does not require a plurality of shower pipes and pumps or a high-pressure pump, which contributes to simplification of equipment and energy saving, as well as to- be-cleaned objects. The cleaning effect on is improved.

Further, since each processing chamber is sealed by a plate-like partitioning member for partitioning each processing chamber, washing water does not leak to other processing chambers, and the partitioning member is opened and closed up and down. In addition, tableware and the like can be conveyed without coming into contact with the partition member and becoming soiled.

Further, since the processing from the loading of the rack to the unloading of the rack is automated by the control means, no great effort is required and a great effect can be obtained.

[0048]

According to the present invention having the above-described structure, the racks carried into each processing chamber are provided with a drain dryer.
For each processing chamber stroke provided at the lower position or upper position of
By the return movement means, it is sequentially conveyed to the next processing chamber, and after being washed and drained and dried, it is carried out of the carry-out port. Obtainable.

[Brief description of the drawings]

FIG. 1 is a front sectional view of an automatic dishwashing apparatus according to the present invention.

FIG. 2 is a sectional view taken along the line AA of the automatic dishwashing apparatus according to the present invention.

FIG. 3A is a front view illustrating a main part of a rack transport mechanism. (B) It is a top view which shows the principal part of a rack conveyance mechanism.

FIG. 4 is a schematic diagram of a main part showing a connection state of a shower pipe and an air pipe provided in each processing chamber.

FIG. 5 is a perspective view of a rack.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Automatic tableware washing apparatus 3 Rack 5 Carry-in 7 Carry-in room 9 Shower nozzle 11 Shower tube 13 Detergent washing room 15 Shower nozzle 17 Shower tube 19 Hot water washing room 21 Air nozzle 23 Air tube 25 Drainage drying room 27 Carry-out port 29 Rack transport mechanism 31 Control means 45 Reciprocating means 47 Locking means 59 Partition member 61 Partition member opening / closing means 81 Connecting member 83 Reciprocating means

Claims (2)

(57) [Claims] 1. A loading chamber having a loading port for loading a rack on which a washing object such as tableware can be placed without swinging or falling, and a plurality of shower nozzles for washing the washing object stored in the rack. A detergent cleaning chamber for spraying a cleaning liquid from a shower pipe provided at a plurality of locations to perform pressurized shower cleaning, and a hot water cleaning for subjecting the object to be cleaned to pressurized shower cleaning by spraying hot water from a shower pipe provided with a shower nozzle at a plurality of locations. a chamber, said the draining drying chamber air nozzle to the object to be cleaned is draining dried by jetting air from the air tube provided multiple places, unloading opening for unloading a rack which accommodates the object to be cleaned, the transport
A partition member opening / closing means that opens and closes each processing chamber by operating at times
Automatic dishwashing equipment that is installed in each processing room.
Simultaneously lock the racks transported on the track
Transfer racks to the room
After moving from the room entrance to the next room entrance, return to the original position.
Reciprocating hand for each processing chamber stroke that drives the transfer table
A stage is provided below the draining / drying chamber, and while the objects to be cleaned in the racks transported and placed in the respective chambers are stopped, they are washed and drained and dried for a predetermined time, and the racks are sequentially transported and unloaded in the transport direction. An automatic dishwashing apparatus, comprising: a rack transport mechanism for carrying out the cleaning; and control means for transporting the rack and washing the detergent, hot water and draining and drying in each processing chamber. 2. The cleaning room and the hot water cleaning room according to claim 2 ,
Surround the top, bottom, and both sides of each rack.
Place a shower tube on the rack of the draining room.
An air pipe is provided across the transport path in the direction
And the air tube rotate to multiple locations on the connecting member that is integrally formed
Arrange free wheels on the track to drive the connecting member
The reciprocating means for each processing chamber stroke is located above the draining / drying chamber.
2. The automatic dishwashing apparatus according to claim 1, wherein the automatic dishwashing apparatus is provided in a washing machine.