JP2003266040A - Washing apparatus for square container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide a washing apparatus for a square container capable of automatically and beautifully washing all parts of the inner surface of the square container. <P>SOLUTION: A rotary base 25 is provided to the motor shaft 22 of a hydraulic motor 21 and a square gear 29 having a shape, formed by proportionally contracting the shape of the mouth part of the square container 3, is fixed to the shaft case 24 of the hydraulic motor 21. The mounting shaft 31 of a circular small gear 30 meshed with the square gear 29 is held to the rotary base 25 and a roller 34 guided by a recessed groove 33 having a shape, formed by proportionally contracting the shape of the square gear 29, is provided to the mounting shaft 31 of the small gear 30. A brush for washing the container is provided to the mounting shaft of the small gear so as to be capable of regulating the detaching and attaching positions of the brush and a nozzle for ejecting the drain water from the hydraulic motor 21 toward the inner surface of the container is provided and a support table of the square container is raised and lowered by a lift means so as to be capable of covering the brush for washing the container with the square container in a top and bottom reversed state. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectangular container cleaning device for cleaning the inner surface of a rectangular container with the top and bottom turned upside down.

[0002]

2. Description of the Related Art For example, when cooking in a large facility such as a school or a hospital, or when catering for a large-scale lunch, etc., cooked rice or cooked by-products in a deep-bottomed container such as a bucket or bat It is housed and transported.

Then, the collected used container is automatically washed by flowing it into a cleaning line.

As a cleaning device for this container, the present applicant has
The motor shaft of the hydraulic motor is projected above the motor case, a circular gear is fixed to the shaft case of this motor shaft, and the rotary base is provided on the protruding part of the motor shaft above the shaft case. In addition, the mounting shaft of the small gear that meshes with the circular gear is rotatably held, and the mounting shaft of the small gear is provided with a cleaning brush for the inner surface of the container so that the cleaning brush can be removed and the mounting position can be adjusted. It has been proposed that the brush for brush is configured to revolve around a circular gear by causing the rotation of the rotary base to rotate.
No. 1-267082).

According to the container cleaning device having the above-mentioned structure, the container is turned upside down, the container is set so as to cover the cleaning brush, and the rotary base is rotated by the hydraulic motor, so that the container is rotated. The inner surface of the container is automatically cleaned by the cleaning brush that revolves around.

[0006]

By the way, as a container for storing the above-mentioned cooked rice, side food, etc., there is a bucket or a bat having a circular or square shape. It is intended for cleaning, and when cleaning a rectangular container, a means for moving the hydraulic motor in the horizontal two-dimensional direction and a control means for this are added to make the cleaning brush that revolves along with its rotation horizontal. It had to be moved in two dimensions.

However, it is not only very difficult to control the container cleaning brush of the container cleaning apparatus for cleaning a circular container along the corner of the inner surface of the rectangular container, which has a small curvature, to be severely moved. However, there is room for improvement in that the cost for that is high.

The present invention has been made in view of the above circumstances, and its purpose is not only horizontal movement means but also
It is an object of the present invention to provide a cleaning device that makes it possible to easily clean the inner surface of a rectangular container in every corner without requiring costly control means.

[0009]

To achieve the above object, in the present invention, a motor shaft of a hydraulic motor is made to project above a motor case, and this motor shaft is made to project above a shaft case. While providing a rotary base on the protruding shaft, a square gear with a proportionally reduced mouth of the rectangular container to be cleaned is fixed to the shaft case of the motor shaft by making it face the rotary base, and meshes with this square gear. The mounting shaft of the circular small gear is rotatably locked and held by the rotary base in a state of being movable in the radial direction of the motor shaft, and on the surface parts of the pair of upper and lower fixing members provided on the shaft case that face each other. A concave groove having a shape in which the shape of a square gear is proportionally reduced is formed, and a holding member for a roller guided in the concave groove is provided rotatably relative to a mounting shaft of a small gear.

Further, a brush for cleaning the container, in which a brush-shaped plate member made of silicone rubber which can be elastically deformed is provided on the brush boss, is provided so that the brush can be detached from the mounting shaft of the small gear and the mounting position can be adjusted. A brush for washing the rectangular container is formed on the motor shaft by forming a drainage channel for the drainage from the motor on the motor shaft and providing a nozzle for ejecting the drainage toward the inner surface of the vessel in this drainage channel. It is characterized in that the support table of the rectangular container is provided so as to be able to move up and down by the elevating means (claim 1).

According to the container cleaning apparatus having the above-mentioned structure, when the rotary base is rotated by the hydraulic motor, the mounting shaft of the pinion gear, and thus the container cleaning brush, rotates along with the rotation of the rotary base. At the same time, it is guided by the concave groove and revolves around the square gear.

Therefore, according to the cleaning apparatus having the above-mentioned structure, the rectangular container to be cleaned is turned upside down and deposited on the table, and thereafter, the elevating means and the hydraulic motor are operated to operate the rectangular container. Moves down over the brush for cleaning the container, and the rotation of the rotary base causes the cleaning brush to revolve along the inner surface of the rectangular container, automatically rotating the inner surface of the rectangular container to every corner. Will be cleaned.

When the cleaning is completed, the hydraulic motor is stopped and the lifting means is operated to lift the table and the rectangular container to the original position. At this point, the rectangular container after cleaning is taken out. The new rectangular container to be cleaned is deposited on the table, and by repeating this process, the inner surface of the rectangular container is cleaned automatically.

At this time, in the past, a circular gear was used to revolve the cleaning brush, whereas in the present invention, a horizontal gear, which was required in the prior art, is obtained by modifying the circular gear so that it is a square gear. Not only the operating means but also the costly controlling means are unnecessary, and the inner surface of the rectangular container can be cleanly cleaned in every corner.
According to the present invention, a cleaning device for a rectangular container is provided at low cost.

As the above-mentioned cleaning brush, the one in which the elastically deformable silicon rubber plate member is provided on the brush boss is selected, and therefore, for example, synthetic resin fibers having flexibility are used for the brush boss. Compared to the densely planted one, the plate-shaped member can be cleaned cleanly and easily in every corner.

Further, since the plate-like member is provided so as to be detachable from the mounting shaft of the pinion gear and capable of adjusting the mounting position, it is possible to easily deal with cleaning of rectangular containers having different diameters and depths. .

Further, the drainage from the hydraulic motor is effectively used as cleaning water, and the cleaning water is jetted toward the inner surface of the rectangular container and the cleaning portion of the cleaning brush, so that the inner surface of the container is not polluted. Even if there is, you can wash it off cleanly.

Here, in addition to forming the concave groove for guiding the revolution orbit of the cleaning brush in the two fixing members exclusively provided, as will be apparent from the embodiment, the shaft case of the motor shaft. Two square gears may be provided in the upper and lower parts of the above, and this may be used as a fixing member, and the concave groove may be formed in the surface portion facing the opposite side (claim 2).

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an outline of container cleaning equipment. This container cleaning equipment is provided with a pre-washing unit, a main washing unit, and a rinsing unit after the pretreatment unit 1 for roughly washing the items to be cleaned such as the leftover food adhered to the inner surface of the container. The cleaning processing unit 2 is arranged, and the pre-processing unit 1 is provided with a cleaning device 4 for the rectangular container 3 and a cleaning device 6 for the circular container 5.

The respective containers 3 and 5 are washed with the top and bottom reversed, and as shown in FIG.
Each of the container cleaning devices 4 and 6 is provided with a support table 7 for the container 5 which is turned upside down so as to be able to move up and down along a guide rail 8 and to directly move the table 7 up and down. An elevating means (for example, an air cylinder) 9 is provided on the fixed frame 10.

A control panel 11 of the lifting means 9 is provided with a switch 12 for lifting and stopping the table 7, and above the table 7 above the table 7.
A sensor 13 is provided which detects the height of the bottom surface of the containers 3 and 5 deposited above and automatically stops the lowering of the table 7 based on the detection information of the height.

That is, depending on the depth of the containers 3 and 5 set on the table 7, the lowering position of the table 7 by the elevating means 9, that is, the lowering position of the bottom surface of the container is always raised and lowered. A sensor 13 for automatically stopping the means 9 is provided.

The container supporting table 7 is provided with a mounting plate portion 14 for the containers 3, 5 which are turned upside down and a holder 15 for fixing the container. Aperture 5 shaped proportionally smaller than the mouth (see FIG. 3) 16
Are formed.

On the other hand, the holder 15 for fixing the container is provided with an engaging portion a of the handle 17 and a locking pin b for preventing the handle 17 from coming out of the engaging portion a, and is also locked. The pin b is configured so that it can be switched to the release prevention state.

A cleaning device 4 for cleaning the rectangular container 3 is shown in FIGS. 4 and 5. In FIGS. 4 and 5, reference numeral 21 in the drawings is a hydraulic motor, and the structure of the hydraulic motor 21 is structurally the same as that shown in Japanese Patent Laid-Open No. 11-267082. Although not described, the motor shaft 22 of this hydraulic motor 21
Is projected above the motor case 23, the motor shaft 22 is projected above the shaft case 24, and the rotary base 25 is fixed to the protruding shaft portion.

As shown in FIG. 6, the rotary base 25
Has a rectangular shape, and the central portion thereof is the motor shaft 22.
Is fixed to the protruding shaft portion of the rotary base 25, and at both ends of the rotary base 25, a long hole c is formed in a direction orthogonal to the central axis of the motor shaft 22, and further along the long hole c. In this state, linear grooves d, d are formed on both sides of the groove.

Incidentally, the motor shaft 22 of the hydraulic motor 21 is formed hollow so that the drainage from the hydraulic motor 21 is introduced into the hollow portion 26, and the end of the motor shaft 22 is connected to the hollow portion 26. , Introduced drainage jet nozzle 2
7 is provided and the cleaning water is sprayed toward the cleaning portion of the cleaning brush 28 described later.

That is, when washing dishes at home, simply rubbing the dishes with a sponge spreads the stain, and at this point, the effect of removing the stain is enhanced by adding water to the sponge. As will be understood, the drainage from the hydraulic motor 21 is effectively used as a follow-up water at the time of cleaning and is sprayed toward the cleaning part of the cleaning brush 28 to improve the cleaning effect. -ing

Regarding the control of the hydraulic motor 21, the rotation is automatically started when the table 7 starts to descend, and the rotation is automatically stopped when the table 7 is lifted after washing the container. ing.

That is, if the rotation of the hydraulic motor 21 is stopped after the lifting of the table 7 is completed, when the container is immediately taken out, the water may be blown off to the surroundings, which may affect the operator. Assuming that there is a certain amount of safety, the rotation is stopped when the table 7 is lifted.

Next, 29 and 29 in the figure are square gears of the same shape in which the mouth of the rectangular container 3 to be cleaned is proportionally reduced, and the openings formed in the mounting plate portion 14 of the container supporting table 7. The motor shaft 22 is aligned with the same phase as the part 16.
Are fixed to the upper and lower parts of the shaft case 24.

Reference numerals 30 and 30 are 18 with respect to the square gear 29.
This small gear 30 is a circular small gear that meshes at a phase of 0 degree.
The mounting shaft 31 is rotatably retained by the rotary base 25 while being movable in the radial direction of the motor shaft 22.

32 is a small gear 3 around the square gear 29.
It is a guiding means for guiding the planetary motion of 0, and a concave groove 33 having a shape in which the shape of the square gear 29 is proportionally reduced is formed in the surface portions of the pair of upper and lower square gears 29, 29 which face each other. The holding member 35 of the roller 34 guided by the groove 33 is held by the mounting shaft 31 of the small gear 30 so as to be relatively rotatable.

The mounting shaft 31 of the pinion gear 30 is rotatably locked and held with respect to the rotary base 25 while being movable in the radial direction of the motor shaft 22. Through the bearing 36, the shaft support member 3
7, the shaft support member 37 is provided with a pair of rollers 38, 38 capable of rolling along the linear grooves d, d of the rotary base 25. The hole c is penetrated from above.

At this time, the small gear 30 on the upper side, the U-shaped holding member 35 of the guiding means 32, and the small gear 30 on the lower side.
Are mounted on the mounting shaft 31 in that order, and for the upper and lower pinions 30 and 30, these are mounted using the keys.
For the U-shaped holding member 35 fixed to No. 1 and rotatably held by the mounting shaft 31 via the bearing 39, the rollers 38 and 38 of the shaft support member 37 are linearly grooved. It fits in d and d.

Next, regarding the brush 28 for cleaning the container described above, this brush 28 is for cleaning the inner surface of the container with rotation, and is detached from the mounting shaft 31 of the pinion gear 30 and its mounting position is adjusted. It is possible.

Specifically, while a male screw portion 40 is formed on the upper side of the mounting shaft 31, a rod-shaped brush boss 42 having a female screw portion 41 that can be screwed into the male screw portion 40 is vertically spaced. In addition, two plate-like members 43, 43 are attached so as to have a phase of 180 degrees in the circumferential direction, and after adjusting the attachment position of the brush boss 42 with respect to the mounting shaft 31, a split collar for sandwiching the mounting shaft 31. Four
By fixing the brush bosses 42 and 44 to the brush boss 42, the position of the brush boss 42 relative to the mounting shaft 31 is fixed.

The plate-like member 43 is made of, for example, a silicon rubber-based synthetic resin that is elastically deformable, and in terms of shape, it flexibly deforms as the mounting shaft 31 rotates, It is configured to come into contact with the top surface and the peripheral surface of the rectangular container 3 which is turned upside down.

According to the above structure, when the rotary base 25 is rotated by the hydraulic motor 21, the mounting shaft 31 moves along with the rotation of the rotary base 25 and along the linear grooves d. In addition,
With the planetary motion of the mounting shaft 31 by the guiding means 32, the small gear 30 meshed with the square gear 29 and the brush 28 for washing the container provided on the mounting shaft 31 revolves around the square gear 29 while rotating. Like

When cleaning the inner surface of the rectangular container 3, the rectangular container 3 is placed on the container mounting plate portion 14 of the table 7 with the top and bottom reversed, and the handle 17 of the container 3 is held by the holder 1.
5 to lock the rectangular container 3 on the mounting plate portion 14, while operating the lowering switch 12 of the control panel 11 to cover the cleaning brush 28 with the inverted rectangular container 3 upside down. Then, the table 7 is lowered.

With the lowering of the table 7, the hydraulic motor 21 starts to rotate, and the drainage from the hydraulic motor 21 is sprayed from the nozzle 27 toward the cleaning portion of the cleaning brush 28. The brush 28 for cleaning the container provided on the mounting shaft 31 revolves around its own axis, so that the top surface and the peripheral surface of the rectangular container 3 which is turned upside down are provided on the brush 28 for cleaning the container. Plate-shaped member 4
It will be automatically cleaned by 3.

When the cleaning of the inner surface of the container is completed, the raising switch 12 of the control panel 11 is operated to lift the table 7, and accordingly, the rotation of the hydraulic motor is stopped and the cleaning from the nozzle 27 is performed. The spouting of water also stops, and the sensor 13 detects the final lifting of the rectangular container 3, and the pusher cylinder 45 operates based on the information from this, and the washed rectangular container 3
Is sent to the conveyor 47 to the processing section 2 of the next process through the chute 46.

After that, simply by repeating the operation of supplying the rectangular container 3 with the top and bottom reversed and the operation of the elevating switch 12, the prismatic container 3 can be effectively and easily removed by a light work that is not accompanied by dirt. It can be washed fully automatically.

In the cleaning device 4 for the rectangular container 3 having the above structure, the square gear 29 of the cleaning device 4 is replaced by a circular gear, and the concave groove 33 forming the planetary motion guiding means 32 is formed in a circular shape. Then, the cleaning device 4 for the rectangular container 3 can be reconfigured to the cleaning device 6 for the circular container 5. At this time, if the mounting shaft 31 is held so as to be rotatable only with respect to the rotary base 25, Motion guidance means 32
May be omitted.

Further, as shown in FIG. 7, one of the upper and lower (downward in this embodiment) square gear 29 is replaced by a flat guide plate 51 around its pitch circle,
Even if the small gear 30 is changed to the roller 52, or the roller 52 is omitted, the present invention can be implemented.
In the claims, the square gear 29 and the guide plate 5 described above are used.
1 is referred to as a member fixed to the shaft case 24 (fixed member).

Although not shown, the square gear 29 is not shown.
The small gear 30 can be disengaged from the groove and the roller 34 can be removed from the groove 33 in the assembled state of the cleaning device, and the square gear 29 can be divided into two in the diameter direction, and If the split gears of No. 1 are configured to be fixed to the shaft case 24 using, for example, bolts, the container cleaning device can be reconfigured into a device for cleaning containers having different diameters by a simple replacement work of only the split gears. It will be possible.

Further, a set of the container cleaning device is mounted on, for example, a hand cart provided with caster wheels to make the container cleaning device a portable type and connect the hydraulic motor 21 to a pressurized water supply hose. Then, by docking the container cleaning device having the above-described configuration to the existing container cleaning equipment provided with only the underwashing, main-washing and rinsing processing sections, it is possible to upgrade the existing container cleaning equipment.

[0048]

As described above, the cleaning device for a rectangular container according to the present invention is characterized in that the brush for cleaning the container is improved by revolving around using a square gear.
With this simple and rational improvement technology, not only the horizontal movement means but also the costly control means are unnecessary, so that the inner surface of the rectangular container can be automatically cleaned to every corner. According to the present invention, a cleaning device for a rectangular container having an epoch-making structure which has never been provided is provided.
It is offered at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a pretreatment unit for rough cleaning of a container in a container cleaning facility.

FIG. 2 is a plan view of a pretreatment unit for rough washing of a container.

FIG. 3 is an explanatory view of container elevating means.

FIG. 4 is a side view of a container cleaning device for a rectangular container.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is a plan view of a rotary base.

FIG. 7 is a side view showing a cleaning device for a rectangular container according to another embodiment.

[Explanation of symbols]

3 ... Rectangular container, 7 ... Container supporting table, 9 ... Table lifting device, 21 ... Hydraulic motor, 22 ... Motor shaft, 2
3 ... Motor case, 24 ... Shaft case, 25 ... Rotary base, 26 ... Hollow part, 27 ... Nozzle, 28 ... Container cleaning brush, 29 ... Square gear (fixing member), 30 ... Small gear, 31 ... Mounting shaft , 33 ... concave groove, 34 ... roller, 3
5 ... Holding member, 42 ... Brush boss, 43 ... Plate-shaped member, 5
1 ... fixing member.

Claims (2)

[Claims] 1. A rectangular container cleaning device for cleaning an inner surface of a rectangular container in an upside-down state, wherein a motor shaft of a hydraulic motor is projected above a motor case, and the motor shaft is rotated. While projecting above the case and providing a rotary base on the protruding shaft part, the square gear with a shape that proportionally reduces the mouth part of the rectangular container to be cleaned is made to face the rotary base relative to the shaft case of the motor shaft. The mounting shaft of a circular small gear that is fixedly attached to the square gear is rotatably locked and held by the rotary base while being movable in the radial direction of the motor shaft. A groove is formed on the surface of the fixing member that is a relative reduction of the shape of the square gear, and the roller holding member guided by the groove is rotated relative to the mounting shaft of the pinion gear. In addition to being provided so as to be rotatable, a brush for cleaning the container, which is provided with a silicone rubber-based plate member capable of elastic deformation in the brush boss, is provided so that the brush can be detached from the mounting shaft of the pinion and the mounting position can be adjusted. In addition, a drainage path for the drainage from the hydraulic motor is formed on the motor shaft, and a nozzle for ejecting the drainage toward the inner surface of the container is provided in this drainage path, while the rectangular container is washed with the top and bottom reversed. An apparatus for cleaning a rectangular container, wherein a support table for the rectangular container is provided so that it can be raised and lowered by an elevating means so that it can be covered with a brush for use in a container. 2. Two square gears are fixed relative to each other on the upper and lower parts of a shaft case of a motor shaft, and these two square gears are used as fixing members, and a concave groove is formed on the surface of the relative squares. The cleaning device for a rectangular container according to claim 1, which is formed.