JP2012170632A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher completely removing food materials stuck to dishes in various shapes and sizes.SOLUTION: The dishwasher 1 includes: a conveyor 2 for conveying dishes 7 while the dishes are mounted on a mounting surface 20; a washing nozzle 51 for jetting liquid toward the dishes 7 mounted on the mounting surface 20 of the conveyor 2; and a washing tub 6 for storing washing liquid 61 for washing the dishes 7. The mounting surface 20 is positioned above a water level line 62 of the washing liquid 61 stored in the washing tub 6. Also, the washing nozzle 51 is positioned below the water level line 62. In this case, preferably, the washing nozzle 51 is positioned within the range of 5 mm to 30 mm of the water level line.

Description

  The present invention relates to a tableware washing apparatus for washing tableware, cooking utensils, and the like that have been conveyed by a conveyor using a washing nozzle.

  Conventionally, in a school, a company, a restaurant, etc., large-sized dishwashing apparatuses that wash dishes and cooking utensils (hereinafter collectively referred to as “tableware”) while being conveyed by a conveyor are used (Patent Document 1, etc.). ). A general structure of such a dishwasher is shown in FIG. In FIG. 6, the code | symbol 91 is a conveyor and mounts and conveys tableware on the tableware mounting surface framed by the grid | lattice form. Reference numeral 92 denotes a cleaning nozzle provided below and above the conveyor 91, which sprays a cleaning agent toward the tableware at a high pressure to remove dirt adhering to the tableware. When using such a tableware washing apparatus, it puts on the conveyor 91 in the state which turned down the bowl, the plate, the tableware, etc., and is made to convey in one direction in that state. In the middle of the conveyance, the dirt is washed by the washing nozzle 92 from below and above the conveyor and conveyed to the outlet provided on the opposite side.

JP 09-224897 A

  However, when washing dishes with such a conventional dishwashing apparatus, the following problems occur.

  In other words, when washing dishes with such a dishwashing device, the food that adheres to the dishes is dropped with the washing nozzle, but in the part where the cleaning agent from the washing nozzle does not hit, You cannot drop such ingredients. In order to drop such foodstuffs, the spraying direction of the cleaning nozzle may be directed in various directions and sprayed at a high pressure in that direction. It is difficult to correspond to tableware having a size.

  In addition, an apparatus has also been proposed in which an object to be cleaned that has been conveyed by a conveyor is immersed in a cleaning tank, and the cleaning object is cleaned by spraying a cleaning liquid with an upper cleaning nozzle or a lower cleaning nozzle. (Japanese Patent Laid-Open No. 2006-67993) In such an apparatus, since the object to be cleaned is cleaned in the cleaning tank, the pressure from the cleaning nozzle is remarkably reduced, and the stubbornly stuck deposit Cannot be dropped effectively.

  Therefore, the present invention has been made paying attention to the above problems, and an object of the present invention is to provide a dishwashing apparatus that can cleanly remove foods adhering to tableware having various shapes and sizes.

  That is, in order to solve the above-mentioned problem, the present invention conveys a tableware placed on a placement surface, and a cleaning nozzle that jets liquid toward the tableware placed on the conveyor, In the tableware washing apparatus comprising a washing tank for storing washing liquid for washing tableware, the placement surface is positioned above the water level line of the washing liquid stored in the washing tank, and from the water level line Also, the washing nozzle is positioned below.

  If it does in this way, the washing | cleaning liquid of the washing tank can be rolled up and sprayed with the washing nozzle provided below the water level line, and the foodstuff which adhered firmly over a wide range can be dropped.

  Moreover, in such an invention, when arrange | positioning a washing nozzle, it arrange | positions 5-30 mm below from a water level line.

  In this way, the foodstuff can be dropped in an optimum state together with the cleaning liquid in the cleaning tank without reducing the pressure from the cleaning nozzle.

  Moreover, the holding | suppressing part which hold | suppresses the tableware mounted on the conveyor from upper direction is provided.

  In this way, it becomes possible to prevent the tableware from being lifted by the cleaning liquid wound up from below.

  In addition, the pressing portion is conveyed in synchronization with the conveyor.

  If it does in this way, since it is made to convey in synchronization with a conveyor, it can prevent that a tableware gets damaged in the middle of conveyance.

  According to the present invention, a conveyor that transports tableware placed on a placement surface, a cleaning nozzle that jets liquid toward the tableware placed on the conveyor, and a cleaning liquid for washing the tableware are provided. In a dishwashing apparatus comprising a washing tank to be stored, the placement surface is positioned above a water level line of the cleaning liquid stored in the washing tank, and a washing nozzle is positioned below the water level line Since it did in this way, the washing | cleaning liquid of a washing tank can be rolled up and injected from the washing nozzle provided below the water level line, and the foodstuff which adhered firmly over a wide range can be dropped now.

Schematic side view of a dishwashing apparatus showing an embodiment of the present invention Schematic perspective view of conveyor in the same form Exploded perspective view of conveyor in the same form The figure which shows the state of the water level line vicinity in the same form The figure which shows the inclination state of the tableware of the exit part of the conveyor in the same form The figure which shows the tableware washing apparatus in a prior art example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The tableware washing apparatus 1 in this embodiment is configured so as to be able to wash the tableware 7 while conveying the tableware 7 and the tableware 7 placed on the conveyor 2. The cleaning nozzles 51 and 52 and the cleaning tank 6 for storing the cleaning liquid 61 for cleaning the tableware 7 are provided. Characteristically, the placement surface 20 of the conveyor 2 is disposed above the water level line 62 of the cleaning liquid 61, and the cleaning nozzle 51 is disposed below the water level line 62. The cleaning liquid 61 in the cleaning tank 6 is rolled up by the sprayed cleaning liquid 61 so that the tableware 7 can be cleaned. Hereinafter, the specific structure of the tableware washing apparatus 1 in this Embodiment is demonstrated.

  The conveyor 2 of this dishwasher is such that the tableware 7 is placed on the placing surface 20 that is the upper surface thereof and conveyed, and as shown in FIGS. 2 and 3, it is provided in a direction orthogonal to the conveying direction. A stay pin 21, a collar member 22 inserted into the stay pin 21 from the axial direction, and a conveyor plate 23 inserted at both ends of the two axial stay pins 21 across the collar member 22 are provided in a lattice shape. It is configured. The stay pins 21 are provided so as to straddle the drive transmission portions 31 provided at both left and right ends in the transport direction, and are attached to the drive transmission portion 31 so as to have a constant interval along the transport direction. On the other hand, the collar member 22 has a hollow cylindrical shape that can be inserted into the stay pin 21 from the axial direction. The collar member 22 is inserted from the end portion of the stay pin 21, and the left and right widths of the conveyor plate 23 are positioned by the end portion. I can do it. In addition to the role of positioning the left and right widths of the conveyor plate 23, the collar member 22 has a role of bringing the conveyor plate 23 upright. That is, when the conveyor plate 23 is inserted into the stay pin 21, if the insertion hole 24 provided in the conveyor plate 23 is thin, the conveyor plate 23 becomes unstable on the stay pin 21, and is in an upright state. You will not be able to keep it. Therefore, by increasing the outer diameter of the collar member 22, the conveyor plate 23 is held at the end thereof, and the standing state of the conveyor plate 23 is maintained. On the other hand, the conveyor plate 23 is made thin so that the vertical distance between the stay pin 21 and the tableware 7 is separated and the cleaning liquid 61 or the like sprayed from below is directed in the vertical direction. It consists of a metal plate. The conveyor plate 23 is provided with two insertion holes 24 for inserting the stay pins 21 in the vicinity of the lower end portion thereof, so that the center of the insertion hole 24 is spaced apart from the upper end portion and is provided in the tableware 7. The lid pawls are not caught on the stay pin 21. Further, the upper end portion of the conveyor plate 23 has a bent portion 25 obtained by bending the plate-like member, and the bent portion 25 forms a round shape at the upper end portion and damages the tableware 7. In addition, the reinforcement of the conveyor plate 23 is promoted. When such a bent portion 25 is provided, the thickness increases in the direction in which the plate-like plate is bent. Therefore, when the conveyor plate 23 is attached to overlap in the transport direction, the bent portions 25 are mutually attached. Attach so that the nonexistent surfaces are back to back. Then, as shown in FIG. 1, the conveyor 2 configured in this manner is inclined at the inlet portion and the outlet portion, and the table 7 is brought close to the water level line 62 of the cleaning liquid 61 by the inclined portion 26 of the inlet portion. For the finished tableware 7, the cleaning liquid 61 accumulated in the recessed portion on the back side of the tableware 7 is dropped at the inclined portion 27 of the outlet portion (see FIG. 5).

  The drive transmission parts 31 provided at both ends of the stay pin 21 are provided at both ends of the stay pin 21 to rotationally drive the conveyor 2 and are configured to be engaged with the sprockets 34 that form a rotating part. Here, the roller transmission 32 is attached to the two front and rear stay pins 21, and the outer plate 33 is attached to the outer side of the roller ring 32 so as to constitute the drive transmission unit 31. Then, the roller ring 32 is meshed with the sprocket 34 that is the drive mechanism 3, and the conveyor 2 is rotated endlessly by rotating the sprocket 34 with a motor (not shown).

  Further, the presser portion 4 provided above the conveyor 2 is configured to prevent the tableware 7 from being lifted by jetting from below. In this embodiment, the holding member 4 is configured by circling a lattice-like member. Has been. Further, since the tableware 7 may be lifted by strong blow-up only with this lattice-like member, the weight 41 is suspended from the left and right width portions in the transport direction to prevent the tableware 7 from being lifted. . When the tableware 7 is pressed by the pressing unit 4, the tableware 7 is conveyed in synchronization with the lower conveyor 2 by the same motor.

  The washing tank 6 stores a cleaning liquid 61 for washing the tableware 7 placed on the placement surface 20 of the lower conveyor 2, and the placement surface 20 of the lower conveyor 2 is connected to the water level line 62. In addition, the cleaning liquid 61 is stored so as to be positioned above. Here, the cleaning liquid 61 may be a liquid mixed with detergent, hot water, or the same liquid as the liquid ejected from the cleaning nozzles 51 and 52.

  Further, cleaning nozzles 51 and 52 are provided on the placement surface 20 and the lower side of the lower conveyor 2 configured as described above and the upper pressing portion 4 side. The cleaning nozzles 51 and 52 are configured to eject the cleaning liquid 61 at a high pressure, and are provided at a plurality of locations along the transport direction. Of these cleaning nozzles 51 and 52, the cleaning nozzle 51 provided below the conveyor 2 is provided below the water level line 62, whereby the cleaning liquid 61 in the storage tank is also rolled up and sprayed upward. I try to let them. In the case where the cleaning nozzle 51 is provided below the water level line 62, if the cleaning nozzle 51 is located too low, the water pressure from the cleaning nozzle 51 is reduced and the tableware 7 cannot be cleaned. On the other hand, if the cleaning nozzle 51 is located at the limit of the water level line 62, the cleaning liquid 61 in the storage tank cannot be rolled up. If the cleaning liquid 61 is reduced during the cleaning, the cleaning liquid 61 is removed. It can no longer be rolled up. For this reason, in this embodiment, the cleaning nozzle 51 is provided within the range of 5 mm to 30 mm (preferably 25 mm to 30 mm) from the water level line 62. Moreover, since the effect of the spreading | diffusion by injection will not be acquired if the position of the mounting surface 20 is too close to the water level line 62, it mounts in the range of 5 mm-20 mm (preferably (10 mm-20 mm)) from the water level line 62. The placement surface 20 is positioned.

  Next, the operation when the tableware 7 is cleaned using the tableware washing apparatus 1 configured as described above will be described.

  When the tableware 7 is washed, first, a large food material is dropped at a front-stage leftover processing unit (not shown), and then the placing surface 20 of the conveyor 2 is placed with the tableware 7 reversed from the inclined portion 26 on the entrance side. Put it on. When the conveyor 2 is transported and driven in this state, the tableware 7 transports the upper limit of the water level line 62 of the storage tank, and the cleaning liquid 61 from the cleaning nozzle 51 provided below the water level line 62 in the middle. Washed by. At the time of this cleaning, the cleaning liquid 61 stored in the storage tank is rolled up by the cleaning liquid 61 sprayed from the cleaning nozzle 51, thereby spraying the cleaning liquid 61 upward over a wide area and sticking strongly inside the tableware 7. Drop the ingredients.

  At this time, the tableware 7 tends to float by the jetting, but the lifting is prevented by the pressing portion 4 provided above the conveyor 2, and the tableware 7 is washed while being placed on the placement surface 20. .

  And from the upper side of the tableware 7 similarly, the tableware 7 is wash | cleaned with the washing nozzle 52, and it conveys downstream. Then, the tableware 7 that has been cleaned is inclined at the inclined portion 27 on the outlet side, and the cleaning liquid 61 accumulated in the recessed portion on the back side of the tableware 7 is dropped to the cleaning tank 6 side as shown in FIG. Go.

  Thus, according to the said embodiment, the conveyor 2 which conveys the tableware 7 in the state which mounted the mounting surface 20, and the washing nozzle which injects a liquid toward the tableware 7 mounted on the said conveyor 2 51, and a cleaning tank 6 for storing a cleaning liquid 61 for cleaning the tableware 7, the above-described device is disposed above the water level line 62 of the cleaning liquid 61 stored in the cleaning tank 6. Since the surface 20 is positioned and the cleaning nozzle 51 is positioned below the water level line 62, the cleaning liquid 61 in the cleaning tank 6 can be rolled up and sprayed, and the stubbornly adhered food is dropped over a wide range. Will be able to.

  Moreover, when arrange | positioning the washing nozzle 51, since it arrange | positioned 5 mm-30 mm below from the water level line 62, without reducing the pressure from the washing nozzle 51, and an optimal state with the washing | cleaning liquid 61 of the washing tank 6 The tableware 7 can be washed.

  Furthermore, since the pressing portion 4 for pressing the tableware 7 placed on the conveyor 2 from above is provided, the tableware 7 can be prevented from being lifted by the water pressure from the cleaning nozzle 51.

  Moreover, since this press part 4 was conveyed in synchronism with the conveyor 2, it can prevent that the tableware 7 is damaged in the middle of conveyance.

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment.

  For example, in the above embodiment, the conveyor 2 having the standing conveyor plate 23 is used. However, when washing tableware or the like that does not have a claw, a lattice conveyor such as a wire mesh is used. May be.

  In the above embodiment, the cleaning liquid 61 is ejected from the cleaning nozzles 51 and 52. However, the cleaning liquid 61 may be the same liquid as the liquid in the cleaning tank 6, or may be a different liquid. May be.

DESCRIPTION OF SYMBOLS 1 ... Tableware washing apparatus 2 ... Conveyor 21 ... Stay pin 22 ... Color member 23 ... Conveyor plate 24 ... Insertion hole 25 ... Bending part 26 ... Inclined part on the entrance side 27: Inclined part 3 on the outlet side ... Drive mechanism 31 ... Drive transmission part 32 ... Roller ring 33 ... Outer plate 34 ... Sprocket (circular part)
4 ... Holding part 41 ... Weight 51, 52 ... Cleaning nozzle 6 ... Cleaning tank 61 ... Cleaning liquid 62 ... Water level line 7 ... Tableware

Claims (4)

A conveyor for transporting tableware placed on the mounting surface;
A cleaning nozzle for injecting liquid toward the tableware placed on the conveyor;
In a dishwashing apparatus comprising a washing tank for storing a washing liquid for washing dishes,
A tableware washing apparatus, wherein the placement surface is positioned above a water level line of the cleaning liquid stored in the washing tank, and a cleaning nozzle is positioned below the water level line. The dish washing apparatus according to claim 1, wherein the washing nozzle is disposed 5 mm to 30 mm below the water level line. The tableware washing apparatus according to claim 1, further comprising:
The tableware washing apparatus of Claim 1 which provided the pressing part which hold | suppresses the tableware mounted on the conveyor from upper direction. The tableware washing apparatus according to claim 3, wherein the pressing unit is configured by a conveyor that conveys tableware in synchronization with the conveyor.

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