JP2000279909A - Nozzle angle adjusting mechanism of automatic container washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a nozzle for jetting sodium bicarbonate to a prescribed angle to precisely obtain a driving angle at which a most desirable stripping action can be expected even to the inner peripheral surface of a container, the bottom surface, or the unevenness of the inside of the container. SOLUTION: In a container automatic washer wherein a cylindrical container 1 to be washed is rotated about a horizontal axis P and a nozzle is used to jet washing material (sodium bicarbonate) to the inner surface of the container 1 together with water by using compressed air to strip and wash the soil on the inner surface of the container 1, four air angle cylinders 10a, 10b 10c, 10d connected in series are provided to stepwise adjust the angle of the nozzle 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container cleaning device for cleaning the inside of a container, and more particularly to a container cleaning device (drum) containing various inks, resin paints, etc. The present invention relates to an improvement in an automatic container cleaning device used for cleaning the inside using powdery baking soda and water.

[0002]

2. Description of the Related Art The above-mentioned container is used for enclosing and transporting various inks, resin paints, and the like, and for reuse or mixing and diluting an appropriate ink. In such a case, the initial ink, the ink after mixing and dilution, and the like often adhere to the inner surface of the container and are substantially cured, or in some cases, completely cured.

[0003] In this case, conventionally, washing has been carried out with a volatile solvent such as alcohol, toluene or the like according to the container or an appropriate detergent. Generally, a brush is used to rub the inner surface of the container such as the bottom and the peripheral wall (there is also adherence to the outer surface, but there is almost no problem in achieving the above-mentioned reuse purpose). Such a manual operation requires a great deal of time and labor to peel off, etc., and does not meet the requirement that hundreds of drums and the like must be cleaned and processed daily. There are also problems that the solvent used itself is a harmful substance to the human body and that explosion-proof properties must be considered.

The present inventors have proposed in Japanese Patent Application No. 8-292189 a peeling type cleaning method which can solve such problems and cleanly clean. This technology is
Water and powdery material, in this case powdered sodium bicarbonate (fine powder of sodium bicarbonate [NaHCO ₃ ]), are sprayed onto the target by pressurized air, and a resin paint or the like cured using the impact generated at that time Is peeled off. The water has a function of suppressing scattering of the powdery material at the time of injection, and at the same time, a role of dissolving the sodium bicarbonate.

In this cleaning apparatus, a cleaning material (the above-described powdered sodium bicarbonate) is sprayed together with water from a water spray nozzle onto an inner surface of a container (drum can) rotated about a horizontal axis, and adheres to the inner surface of the container (drum can). It was configured to remove the deposit (ink) and wash the inner surface of the container (drum).
Then, the cleaning material, water, and the cleaning material (peeled pieces of the thin film ink) were received from the opening of the container (drum can) by a gutter (hopper) and discharged.

[0006]

With the development of such a cleaning apparatus, a dangerous cleaning method using a volatile solvent or the like is not employed, and excellent ink is obtained despite the elasticity of the ink of the resin component remaining. Although peeling and cleaning could be achieved, as described above, the container is laid so as to be rotated around the horizontal axis, and a plurality of rotation driving means are provided on the lower surface of the container. However, the following problem has arisen due to the configuration in which the roller contacts and rotates the container.

That is, since baking soda is sprayed in a spot shape on the inner surface of a cylindrical container (drum can or equivalent container), the nozzle is moved in the axial direction of the container while rotating the container. Otherwise, the entire inner peripheral surface of the container cannot be peeled and cleaned. In this case, when spraying is performed on the inner peripheral surface of the container and when spraying is performed on the bottom surface, the angle of the nozzle (the baking soda driving angle) must be changed as a matter of course. Further, depending on the container, ring-shaped concave portions (ribs) are formed at predetermined intervals like a drum can, and the most effective peeling action is obtained when the connection between the side wall and the bottom is blown to a narrowed portion or the like. It is necessary to adjust the driving angle. Furthermore, with a cleaning object, for example, resin ink, paint, etc.
The preferred angle of baking soda for peeling is different between the cured and uncured cases.

In order to solve such a problem, a nozzle is provided with a ball joint interposed therebetween to carry a conduit (conveying baking soda together with air).
And the nozzle is rotated (oscillated) at a predetermined angle,
A structure to obtain a required injection angle (baking soda baking angle) was adopted, and a method of operating this nozzle with an air cylinder (a servo actuator was also possible) was adopted. However, in a normal cylinder, even if the air valve is operated by an electromagnetic valve, it is difficult to control the stroke to stop accurately in a predetermined range, and it is therefore difficult to fix the position of the nozzle at a required angle. The result came out.

In view of the above problems, the present invention can adjust the nozzle for injecting baking soda to a predetermined angle, and can be applied to the inner peripheral surface, the bottom surface, or the unevenness inside the container. It is another object of the present invention to provide a nozzle angle adjusting mechanism capable of accurately obtaining a driving angle at which the most preferable peeling action can be expected.

[0010]

In order to achieve the above-mentioned object, a nozzle angle adjusting mechanism in an automatic container cleaning apparatus according to the present invention moves a cylindrical container 1 to be cleaned to a horizontal axis P.
It is placed on the rotation driving means 3 so as to be rotatable around, and the roller 3b of the rotation driving means 3 is mounted on the peripheral surface of the container 1.
And a nozzle 4a for injecting powdered baking soda as a cleaning material, a nozzle 4b for sucking and injecting water, and a conduit 4c for conveying baking soda by air. Is provided in a substantially horizontal direction from the opening 1a of the container 1 to the inside thereof, and a second injection driving means 7 for moving the cleaning material injection means 4 in the radial direction of the container 1 is provided. And powdered baking soda is sprayed together with water with compressed air on the inner surface of the container 1 by the cleaning material spraying means 4, and the adhered matter adhering to the inner surface of the container 1 is peeled to remove the inner surface of the container 1. In an automatic container cleaning apparatus configured to discharge the washed deposits, baking soda, and water to the outside, four air angle cylinders 10a, 10b, 10c, and 10d operated by solenoid valves are connected in series. Establishment The air angle cylinder 10a · 1
Ob, 10c, and 10d provide an operation rod 11 that is pushed and pulled in the axial direction of the container 1 and is supported by a base end 13a of a hollow ball joint 13 connected to a conduit 4c of the cleaning material injection unit 4. The arm 15 is pivoted upward, and the other end of the swing arm 18 having one end pivotally connected to the support arm 15 and the nozzle 4 a is pivotally connected to a pivot pin 19.
And the pivot pin 19 is attached to the operation rod 1.
The operation rod 11 is slidably fitted to the long grooved bracket 20 fixed to 1 and the operation rod 11 is operated by four electromagnetic angle cylinders 10a, 10b, 10c, 10
In this case, the angle of the nozzle 4a is adjusted by performing a swing operation in a stepwise manner by the push-pull operation of d.

In the present invention, the above-mentioned ball joint 1
3 is provided obliquely downwardly at an angle of about 25 degrees with respect to the substantially horizontal conduit 4c, and the ball joint 13 is configured to be swingable at an angle of about 25 degrees up and down from its central axis. Is preferred.

[0012]

According to the present invention, a cylindrical container 1 is provided.
When the inner surface is peeled and cleaned by spraying a cleaning material (baking soda) while rotating the baking soda, the baking soda bombardment angle should be set to a high peeling angle (materials such as resinous ink and paint) when cleaning the inner peripheral surface. , Drying degree, etc.) are provided by connecting four air angle cylinders 10a, 10b, 10c, 10d in series, and the stroke of the operation rod 11 can be adjusted by the stepwise operation of each angle cylinder by the solenoid valve control. It is possible to surely adjust the angle of the nozzle 4a accurately,
Can be fixed.

In this case, the ball joint 13 is provided obliquely downward at an angle of approximately 25 degrees with respect to the substantially horizontal conduit 4c, and the ball joint 13 is vertically inclined approximately 25 degrees from the center axis thereof. In this case, the angle can be reliably adjusted in the range, and different injection angles to the inner peripheral surface of the container 1 and the gap between the bottom and the peripheral wall are required. In this case, accurate control can be performed immediately.

The operating rod 11 includes a support arm 15, a swing arm 18, a pivot pin 19, and a bracket 20 with a long groove fixed to the operating rod 11 for slidably fitting the pivot pin 19. As a result, the stepwise strokes of the angle cylinders 10a, 10b, 10c, and 10d can be accurately transmitted to the nozzle 4a while using a simple link mechanism.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a nozzle angle adjusting mechanism in an automatic container cleaning apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an overall schematic view of the automatic container cleaning apparatus, FIG. 2 is an operation system diagram of a nozzle angle adjusting mechanism, and FIG. 3 is a side view of a main part thereof.

As shown in FIG. 1, this cleaning apparatus is substantially the same as that proposed in Japanese Patent Application No. 8-292189 mentioned at the outset. Designed for drums containing ink. 2 is this container 1
Is a mounting table on which the container 1 is laid so that the axis P of the container 1 is substantially horizontal (slightly inclined so that the opening side is lowered). The rotation driving means 3 which rotates is shown. Here, an air motor 3a is used for the rotation driving means 3 in consideration of explosion proof, whereby a pair of front, rear, left and right constituting the mounting base 2 for supporting the front and rear lower surfaces in the direction of the axis P of the container 1 is used. Are driven by a chain transmission, and the container 1 is rotated, for example, two to three times per minute.

Reference numeral 8 denotes a conveyor conveying means for conveying the container 1 to a washing position while lying down and moving the container 1 from the washing position. Similarly, an air motor is used for explosion proof. Therefore, the transport to the cleaning position, the stop at the cleaning position, and the unloading from the cleaning position are performed by a simple drive with an appropriate control method. The conveyor itself of the conveyor transporting means 8 belongs to a known technology of an endless system, and a detailed description thereof will be omitted. This conveyor may employ a pusher system using an air cylinder without using an end chain. Although not shown, the conveyor transporting means 8 is provided with mounting tables at predetermined intervals at which the containers 1 can be mounted and transported at three locations, and also comes into sliding contact with the bottom of the rotating container 1. A holder is provided to support it in a state.

Reference numeral 9 denotes the mounting table 2 in the washing position.
Is a vertically moving means which moves up and down with respect to the conveyor conveying means 8, and is configured to receive the container 1 on the conveyor conveying means 8 on the mounting base 2 and raise it to the washing position. An air cylinder is also used for the lifting means 9 in consideration of explosion protection.
And the mounting base 2 are integrally lifted and lowered.

Reference numeral 4 denotes a cleaning material spraying means for spraying powdered sodium bicarbonate as a cleaning material inside the container 1.
Is a first ejection drive means for moving the cleaning material ejection means 4 in and out of the opening 1a of the container 1 in a substantially horizontal direction. The cleaning material spraying means 4 includes a nozzle 4a for spraying a mixture of pressurized air and a cleaning material (fine powder of sodium bicarbonate [NaHCO ₃ ]) and a water spray nozzle 4b.
And a hollow conduit 4c that supports them and that carries the baking soda by air.
It is composed of

The first spray driving means 5 moves the conduit 4c (hollow) of the cleaning material spray means 4 toward and away from the container 1. Here, the open surface 1a of the container 1 is used.
The container 4 comprises a lini pusher rack 5a having a rack formed on the lower surface provided along the axial direction of the container 1 and a lini pusher driving means (motor) 5b meshing with the lini pusher rack 5a. It is configured to be movable along the axis P direction. 6a is a hose connecting the cleaning material spraying means 4 and the cleaning material pumping means 17, one end of which is connected to the base end of the conduit 4c,
Through this conduit 4c, it reaches the nozzle 4a.

7. The cleaning material injection means 4 is connected to the container 1
The second injection drive means 7 is moved (elevated) in the radial direction of the frame. Here, the second injection drive means 7 is constituted by an air cylinder (not shown) vertically arranged on a frame fixed to the floor.
The cleaning material nozzle 4a, the water injection nozzle 4b, and the first
The cleaning material ejecting means 4 including the ejection driving means 5 is entirely moved in the vertical direction, that is, in the radial direction of the container 1. In FIG. 1, a hopper 12 is provided at the cleaning position to receive the cleaning material, water, and exfoliated material that has blown into the container 1 and flowed out from the opening 1a, and the residue that has fallen into the hopper 12 is cleaned. It is discharged to the outside by the object discharge mechanism 14.

Then, the angle of the nozzle 4a is adjusted in accordance with the operation of the air cylinder for the vertical displacement adjustment, whereby the nozzle 4a is set to an angle effective for peeling and jetting (with the inner surface of the container 1 horizontal). The angle is adjusted so as to change the direction from a horizontal state to a direction along the axis P of the container 1 so as to correspond to the bottom surface of the container 1 so that the incident angle with respect to the horizontal plane is 35 to 60 degrees. Here, the nozzle angle adjusting mechanism is configured as follows.

As shown in FIGS. 2 and 3, a solenoid valve (here, disposed in a switchboard for the purpose of explosion protection, performs an air switching operation within the switchboard, but is expensive but has a normal explosion-proof function. The four air angle cylinders 10a, 10b, 10c, and 10d operated by the air angle cylinder can be used to secure a required stroke, and the air angle cylinder can be used. An operation rod 11 that is pushed and pulled in four stages in the axial direction of the container 1 by cylinders 10a, 10b, 10c, and 10d is provided. 11a is the operation rod 1
1 is a rod bracket that slidably holds the first bracket 1 and is attached to the conduit 4c.

The conduit 4c of the cleaning material injection means 4
End 13 of hollow ball joint 13 connected to
a, and the other end of the swing arm 18 having one end pivotally connected to the support arm 15 and the nozzle 4a is pivotally connected to the other end by a pivot pin 19. The pivot pin 19 is slidably fitted to a long grooved bracket 20 fixed to the operation rod 11. As a result, the operating rod 11 is operated by the four air angle cylinders 10a, 10b, 10c
The swing operation is performed stepwise by the push-pull operation of 10d, whereby the angle of the nozzle 4a is adjusted.

The ball joint 13 is provided obliquely downward at an angle of about 25 degrees with respect to the substantially horizontal conduit 4c, and the ball joint 13 is vertically moved at an angle of about 25 degrees from the center axis thereof. It is configured to be swingable.

[0025]

According to the present invention, when cleaning a container by spraying a cleaning material (baking soda) while laying down and rotating a cylindrical container, the shape of the container, the degree of dryness of the material to be cleaned, and the like are determined. The required baking soda driving (spraying) angle can be easily and accurately adjusted by operating the nozzle stepwise using four angle cylinders and a link mechanism. It has a remarkable effect that the cleaning efficiency can be increased. The other effects according to the present invention are as described in detail in the above-mentioned embodiments and examples of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an entire automatic container cleaning apparatus according to the present invention.

FIG. 2 is an operation system diagram of a nozzle angle adjusting mechanism of a cleaning container in the automatic container cleaning device according to the present invention.

FIG. 3 is a side view of a nozzle angle adjusting mechanism of a cleaning container in the automatic container cleaning apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 1a Opening opening 3 Rotation drive means 3b Roller 4 Cleaning material injection means 4a Nozzle 4b Nozzle (water) 4c Conduit 5 First injection drive means 7 Second injection drive means 10a Angle cylinder 10b Angle cylinder 10c Angle cylinder 10d Angle cylinder 11 Operating rod 13 Ball joint 13a Base end of ball joint 15 Support arm 18 Swing arm 19 Pivot pin 20 Bracket with long groove P Horizontal axis

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[Procedure amendment]

[Submission date] February 21, 2000 (200.2.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010]

In order to achieve the above-mentioned object, a nozzle angle adjusting mechanism in an automatic container cleaning apparatus according to the present invention moves a cylindrical container 1 to be cleaned to a horizontal axis P.
It is placed on the rotation driving means 3 so as to be rotatable around, and the roller 3b of the rotation driving means 3 is mounted on the peripheral surface of the container 1.
And a nozzle 4a for injecting powdered baking soda as a cleaning material, a nozzle 4b for sucking and injecting water, and a conduit 4c for conveying baking soda by air. Is provided in a substantially horizontal direction from the opening 1a of the container 1 to the inside thereof, and a second injection driving means 7 for moving the cleaning material injection means 4 in the radial direction of the container 1 is provided. And powdered baking soda is sprayed together with water with compressed air on the inner surface of the container 1 by the cleaning material spraying means 4, and the adhered matter adhering to the inner surface of the container 1 is peeled to remove the inner surface of the container 1. In an automatic container cleaning apparatus configured to discharge the washed deposits, baking soda, and water to the outside, four air angle cylinders 10a, 10b, 10c, and 10d operated by solenoid valves are connected in series. Establishment The air angle cylinder 10a · 1
Ob, 10c, and 10d provide an operation rod 11 that is pushed and pulled in the axial direction of the container 1 and is supported by a base end 13a of a hollow ball joint 13 connected to a conduit 4c of the cleaning material injection unit 4. An arm 15 is pivoted upward and the ball joint 13 is substantially horizontally
It is provided obliquely downward at about 25 degrees with respect to the pipe 4c.
And the ball joint 13 moves from its central axis.
The support arm 15 and the other end of a swing arm 18 whose one end is pivotally connected to the nozzle 4a are pivotally connected to each other by a pivot pin 19 at about 25 degrees. A pivot pin 19 is slidably fitted to a long groove bracket 20 fixed to the operation rod 11, and the operation rod 11 is operated by four air angle cylinders 10a, 10b, 10c. The nozzle 4a is swung in a stepwise manner by a push-pull operation of 10d.
In which the angle is adjusted.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

In the present invention, the above-mentioned ball joint 1
3 is provided obliquely downwardly at an angle of about 25 degrees with respect to the substantially horizontal conduit 4c, and the ball joint 13 is configured to be swingable at an angle of about 25 degrees up and down from its central axis. It is preferable that the angle is equal to the neck of the nozzle 4.
While using the ball joint 13 for swinging, the flow velocity decreases
To obtain a smooth flow of cleaning material that does not cause
Which can provide effective collision energy
It has the meaning of covering the angle, and the relationship between the two
It is a value derived by experiment.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

[0025]

According to the invention, the cylindrical shape to be cleaned is
The container is mounted on the rotation drive means so that the container can be rotated around the horizontal axis.
Placed, the roller of the rotation drive means on the peripheral surface of the container
It is configured to rotate by contacting with
Nozzle that injects powdered baking soda, nozzle that injects and injects water
Cleaning means provided with a conduit for pneumatically conveying water and baking soda
Is retracted in a substantially horizontal direction from the opening of the container to the inside.
And a cleaning material spraying means.
A second ejection driving means for moving the container in a radial direction of the container.
Provided by the cleaning material spraying means on the inner surface of the container.
And spray the powdered baking soda with compressed air and water.
Removes deposits on the inner surface of the container and cleans the inner surface of the container
And drain the washed deposits, baking soda and water to the outside.
In the automatic container cleaning device configured in the above, when cleaning the container by spraying a cleaning material (baking soda) while laying down and rotating the cylindrical container, depending on the shape of the container, the degree of dryness of the material to be cleaned, etc. of the required baking soda driving the (injection) angle, Bruno
There is also a configuration that swings the chisel using a ball joint
In the, using four angles cylinder and link mechanism, by stepwise operated reliably nozzle, readily, can be adjusted precisely cleaning position the cleaning width (peeling width), as a result This has a remarkable effect that the cleaning efficiency for peeling can be increased. And the angle of the nozzle
Is initially provided at an angle of about 25 degrees with respect to the horizontal, and
With this as the center, an individual system is set up and down in an angle range of approximately 25 degrees.
By making it possible to swing accurately with a cylinder, cleaning material
Do not maintain a high injection speed without obstructing the airflow.
At the desired position of the laid cylindrical container, the desired width
Can give an effective peeling action, and also has a cleaning effect
There is an advantage that the rate can be increased. Other effects according to the present invention are as described in detail in the above-described embodiments and embodiments of the present invention.

Continued on the front page F term (reference) 3B116 AA28 AB33 BA06 BA38 BB22 BB38 BB47 BB55 BB62 CD43 3B201 AA28 AB33 BA06 BA38 BB22 BB38 BB47 BB55 BB62 BB92 BB98 CD43

Claims (2)

[Claims] 1. A cylindrical container 1 to be cleaned is mounted on a rotary drive means 3 so as to be rotatable about a horizontal axis P, and rollers 3b of the rotary drive means 3 are mounted on the peripheral surface of the container 1. And a nozzle 4a for injecting powdered baking soda as a cleaning material, a nozzle 4b for sucking and injecting water, and a conduit 4c for conveying baking soda by air. Is provided in a substantially horizontal direction from the opening 1a of the container 1 to the inside thereof, and a second injection driving means 7 for moving the cleaning material injection means 4 in the radial direction of the container 1 is provided. And powdered baking soda is sprayed together with water with compressed air on the inner surface of the container 1 by the cleaning material spraying means 4, and the adhered matter adhering to the inner surface of the container 1 is peeled to remove the inner surface of the container 1. Washed and washed deposits, baking soda and water In the configuration containers automatic cleaning device to discharge to the outside, the four air angle cylinder 10a which is operated by solenoid valve
10b, 10c, 10d connected in series, and the air angle cylinders 10a, 10b, 10c, 10
(d), an operation rod 11 that is pushed and pulled in the axial direction of the container 1 is provided, and the support arm 15 is placed on the base end 13a of the hollow ball joint 13 connected to the conduit 4c of the cleaning material spraying means 4. The support arm 15 and the other end of the swing arm 18 whose one end is pivotally connected to the nozzle 4a are pivotally connected by a pivot pin 19, and the pivot pin 19 is The operation rod 11 is slidably fitted to a long grooved bracket 20 fixed to the operation rod 11, and the operation rod 11 is stepped by pushing and pulling four air angle cylinders 10a, 10b, 10c, and 10d operated by solenoid valves. A nozzle angle adjustment mechanism in an automatic container cleaning apparatus configured to adjust the angle of the nozzle 4a by a specific swing operation. 2. The ball joint 13 is provided obliquely downward at an angle of about 25 degrees with respect to the substantially horizontal conduit 4c, and the ball joint 13 is vertically inclined at an angle of about 25 degrees from its central axis. The nozzle angle adjusting mechanism in the automatic container cleaning apparatus according to claim 1, wherein the nozzle angle adjusting mechanism is configured to be swingable.