JP2021023915A - Container washing device - Google Patents

Abstract

To reliably wash even an edge (a port portion) of an opening as a lower end when washing an inner surface of a container (a drum can) in an inverted state.SOLUTION: A first washing device 6 has a three-dimentional nozzle 13 for washing an inner surface 2A of a container 2 and an annular guide member 12 installed on a lower side of an edge 2C of the container 2. When the container 2 in an inverted state is carried into a first washing part C2, the three-dimentional nozzle 13 is inserted into the inside of the container 2, then a washing liquid is injected from the three-dimentional nozzle 13, and the three-dimentional nozzle 13 is revolved and is turned about a turning rotary shaft 23 as a rotation center. Thus, the cleaning liquid is injected to an inner surface 2A of the container 2 forming a three-dimentional moving locus. The washing liquid injected obliquely downward from the three-dimentional nozzle 13 is also injected to the edge 2C of the container 2 by being guided by the guide member 12, which is arc-shaped in cross section. Thus, not only the inner surface 2 but also the edge 2V are simultaneously washed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a container cleaning device, for example, a container cleaning device capable of cleaning the edge of an opening at the lower end when cleaning the inner surface of an inverted drum can.

Conventionally, open-type drums with removable lids generally contain highly viscous substances such as oils and fats and paints, and after use, the inside is washed and reused. A cleaning device for cleaning such an open type drum can has been conventionally known (for example, Patent Document 1).

Jitsufuku 3-17997 Gazette

By the way, in the cleaning device of Patent Document 1, the inside and the outside of the container can be cleaned with the inside can cleaning nozzle and the outside can cleaning nozzle, but the edge of the opening which is the lower end of the inverted container is dirty. Could not be washed.
Therefore, conventionally, it has been necessary to separately provide a nozzle for cleaning the edge of the opening, or for a worker to manually clean the edge of the opening using a tool. The edge of the opening of the drum can has a shape in which the vertical cross section bulges in a substantially circular shape in order to increase the strength, and when the operator manually cleans the edge, the cleaning work is complicated and takes time. There was a problem.

In view of the above circumstances, the present invention according to claim 1 includes a rotating member provided so as to be axially rotatable, and a rotating member provided so as to be axially rotatable and provided in a direction orthogonal to the rotating member. A container cleaning device including a cleaning liquid passage formed between the rotating member and the swirling rotating member, and a cleaning nozzle attached to the swirling rotating member and spraying the cleaning liquid supplied through the cleaning liquid passage toward the container. In
It is characterized by including a guide member for guiding the cleaning liquid ejected from the cleaning nozzle so as to be ejected to the edge of the opening of the container.
Further, according to the third aspect of the present invention, the rotating member provided so as to be axially rotatable, the rotating member provided so as to be axially rotatable and provided in a direction orthogonal to the rotating member, and the rotating member. In a container cleaning device including a cleaning liquid passage formed over the swirling rotating member and a cleaning nozzle attached to the swirling rotating member and spraying the cleaning liquid supplied through the swirling liquid passage toward the container.
The cleaning nozzle is inserted into an inverted container with the bottom facing upward, which is carried into a predetermined cleaning position, and a cleaning liquid is sprayed from the cleaning nozzle before or after cleaning the inner surface of the container. The cleaning liquid is directly sprayed from the lower side toward the edge of the opening at the lower end of the container from the cleaning nozzle located on the lower side of the container to clean the entire edge of the opening of the container. It is a feature.

According to the invention of claim 1, since the cleaning liquid sprayed from the cleaning nozzle is guided by the guide member and then sprayed onto the edge of the container, the edge of the opening in the container can be reliably cleaned. it can.
According to the invention of claim 3, since the cleaning liquid is directly sprayed on the edge of the opening of the container, the edge of the opening in the container can be reliably cleaned.

FIG. 5 is a cross-sectional view showing an embodiment of the present invention. Top view of the main part of FIG. An enlarged view of a main part of FIG. FIG. 5 is a sectional view showing another embodiment of the present invention. FIG. 5 is a sectional view showing another embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the illustrated examples. In FIG. 1, reference numeral 1 denotes a container cleaning device for cleaning the inner surface 2A and the outer surface 2B of the container 2 (drum can). In this container cleaning device 1, the container 2 supplied to the supply position A in an upright state is conveyed to the reversing position B by the roller conveyor 3, and the container 2 is inverted by the reversing mechanism 4 at the reversing position B to reverse the chain conveyor 5. It is designed to be placed upside down on top. After that, in the inverted container 2, the inner surface 2A of the container 2 is cleaned by the first cleaning device 6 and the second cleaning device 7 while being sequentially and intermittently conveyed in the cleaning area C to the downstream side by the chain conveyor 5. After that, the outer surface 2B of the container 2 is cleaned by the external cleaning device 8, and the inner surface 2A of the container 2 is rinsed by the rinsing cleaning device 11.

In this embodiment, the container 2 to be cleaned is an open type drum with a removable lid, and the lid is removed from the upper end 2C (mouth) in an upright state so that the upper surface (top surface) is exposed. It is in an open state. A lid (not shown) is fitted to the edge 2C which is the upper end opening, and a band-shaped fastener is attached to the entire circumference of the lid and the edge 2C and tightened to fix the lid and the container. The inside of 2 can be sealed.
As shown enlarged in FIG. 3, the edge 2C of the container 2 has a shape in which the vertical cross section bulges substantially circularly over the entire circumferential direction, so that sufficient rigidity of the edge 2C can be obtained. It has become. As shown in FIG. 3, in this embodiment, the container 2 with the lid removed is supported on the chain conveyor 5 in an inverted state with the bottom 2D facing upward, and in that state, the inner surface 2A and the outer surface of the container 2 are supported. It is designed to wash 2B.
In this embodiment, the inner surface 2A of the container 2 in the inverted state is cleaned by the first cleaning device 6 and the second cleaning device 7, and the outer surface 2B of the container 2 is cleaned by the external cleaning device 8. In this case, the inner surface 2A and the outer surface 2B of the container 2 can be cleaned with the cleaning liquid, but it is difficult to clean the edge 2C at the lower end of the container 2 in the inverted state with the cleaning liquid.
Therefore, as will be described in detail later, in this embodiment, the annular guide member 12 is arranged at the cleaning position of the container 2 by the first cleaning device 6, and the three-dimensional nozzle 13 to the container 2 of the first cleaning device 6 is arranged. When the cleaning liquid is sprayed onto the inner surface 2A of the container 2, the cleaning liquid is guided by the guide member 12 and then sprayed onto the edge portion 2C of the container 2, so that the edge portion 2C can be cleaned.

The upstream end of the transport path of the container 2 is a supply position A to which the container 2 is supplied, and a roller conveyor 3 is provided from this supply position A to the reversal position B. Further, a chain conveyor 5 that intermittently conveys the container 2 is arranged from the reversing position B to the entire area of the cleaning region C.
When the container 2 is supplied on the roller conveyor 3 at the supply position A in an upright state by an operator while the roller conveyor 3 is rotating, the container 2 supplied in an upright state to the supply position A becomes It is conveyed to the reversing position B by the roller conveyor 3.
The reversing mechanism 4 arranged at the reversing position B is adapted to hold the container 2 in the upright state and then invert it so that it is placed in an inverted state on the endless chains 5A and 5B on the adjacent downstream side.
The reversing mechanism 4 comprises a support shaft 4A supported in a direction orthogonal to the transport direction of the container 2 and a pair of left and right L-shaped arms 4B and 4B connected to both ends of the support shaft 4A so as to face each other. (Only one side is shown), and left and right grippers 4C and 4C that can move forward and backward while facing each other are attached to the tips of the arms 4B and 4B.
When both arms 4B and 4B are in a standby state with the upstream side in the transport direction facing as shown by the solid line, and the container 2 in an upright state is transported between the arms 4B and 4B by the roller conveyor 3, a pair of left and right containers 2 is transported. By moving the grippers 4C and 4C forward in synchronization, the outer surface 2B (outer peripheral surface) of the container 2 in the upright state is sandwiched from both the left and right sides. After that, both arms 4B and 4B are rotated by 180 ° toward the downstream side in the transport direction with the support shaft 4A as the center of rotation by a rotation mechanism (not shown), and the grippers 4C and 4C are retracted to release the holding state of the container 2. Will be done.
As a result, the container 2 is inverted from the upright state to the inverted state, and is placed on the chain conveyor 5 stopped at the adjacent position. After that, the reversing mechanism 4 is reversed by 180 ° toward the upstream side in the transport direction with the support shaft 4A as the center of rotation by the rotation mechanism, so that the original standby with both arms 4B and 4B facing the upstream side in the transport direction. It is designed to return to the state.
The reversing mechanism 4 at the reversing position B reverses the container 2 in the upright state in this way and places it on the chain conveyor 5 in the inverted state. In this embodiment, in order to ensure the safety of workers at the site, the upper side and both sides of the movable range of the reversing mechanism 4 are covered with a grid-shaped protective fence 14.

Next, the cleaning area C and the first cleaning device 6, the second cleaning device 7, the external cleaning device 8, and the like arranged therein will be described.
In the cleaning region C, the most upstream end is the receiving portion C1 of the container 2, and the inner surface 2A of the container 2 is sequentially cleaned with a high-pressure detergent on the adjacent downstream side of the first cleaning portion C2 and the container 2. A second cleaning portion C3 for cleaning the inner surface 2A with high-pressure hot water is formed, and at the most downstream portion, the inner surface 2A of the container 2 is rinsed by the rinsing cleaning device 11, and the outer surface 2B of the container 2 is externally cleaned. It is a rinse portion C4 to be cleaned by the cleaning device 8. A chain conveyor 5 as a transport means is arranged over the entire cleaning area C, and a control device (not shown) intermittently rotates a motor (not shown) for the endless chains 5A and 5B, so that the chain conveyor 5 is inverted. The container 2 in the state is sequentially and intermittently transported.
The area on the downstream side adjacent to the cleaning area C is a drying area for drying the container 2 after cleaning with hot air, and a drying mechanism (not shown) is arranged therein.
The chain conveyor 5 is configured by arranging a pair of left and right endless chains 5A and 5B in parallel at intervals smaller than the diameter of the container 2, and is horizontal on the upper side of the pair of left and right endless chains 5A and 5B. The container 2 is directly supported and transported in the traveling region.
The receiving portion C1 is arranged in the guard fence 14 at the reversing position B, while both sides and the upper side of the chain conveyor 5 on the downstream side of the receiving portion C1 are covered with the casing 15. The inside of the casing 15 can be sequentially divided into three spaces by four shutters 16A to 16D that can be opened and closed. As a result, the receiving portion C1, the first cleaning portion C2, the second cleaning portion C3, and the rinsing portion C4 are partitioned, and the receiving portion C1 also serves as the latter half of the reversing portion B.
When the chain conveyor 5 is stopped and the shutters 16A to 16D are closed, the container 2 is supplied to the chain conveyor 5 of the receiving portion C1 in an inverted state by the reversing mechanism 4, and then the shutters 16A to 16A to After the 16D is opened, the chain conveyor 5 is intermittently run by a predetermined amount. As a result, when the inverted container 2 is sequentially carried into the first cleaning unit C2, the second cleaning unit C3, and the rinsing unit C4, the shutters 16A to 16D are closed for a required time.
Then, in a state where the shutters 16A to 16D are closed, a high-pressure detergent is sprayed in the first cleaning unit C2 by the three-dimensional nozzle 13 of the first cleaning device 6 inserted from below into the container 2 in the inverted state. Then, the inner surface 2A of the container 2 is cleaned, and then in the adjacent second cleaning unit C3, the three-dimensional nozzle of the second cleaning device 7 is applied to the inner surface 2A of the container 2 in the inverted state from the lower side. 13 is inserted and high-pressure hot water is sprayed to clean the inner surface 2A of the container 2. Further, in the rinse portion C4, the outer surface 2B of the container 2 is cleaned by the external cleaning device 8, and the inner surface 2A of the container 2 is rinsed and cleaned by the rinsing cleaning device 11. A recovery tank 17 for recovering the cleaning liquid, hot water, etc. after cleaning is arranged on the lower side of the chain conveyor 5 in the cleaning area C.

As shown in FIGS. 1 to 3, the first cleaning device 6 revolves around a cleaning unit 21 in which a three-dimensional nozzle 13 is swivelly provided on the upper portion and a three-dimensional nozzle 13 around the axis of the cleaning unit 21. 1 Drive unit 25 containing a second servo motor 24 or the like that rotates the servo motor 22 and the three-dimensional nozzle 13 around the rotation axis 23 in the horizontal direction, and an elevating mechanism that raises and lowers the drive unit 25 and the cleaning unit 21. It has 26 and.
The elevating mechanism 26 vertically supports the ball screw 28, which is arranged in the vertical direction and is rotated by the servomotor 27, the cleaning unit 21 and the drive unit 25, and the nut portion 29A, which is the base, is screwed into the ball screw 28. The support member 29 is provided.
The operation of the servomotor 27 is controlled by a control device (not shown), and the control device is a servomotor 27 before the inverted container 2 is carried into the first cleaning unit C2 by the chain conveyor 5. The support member 29 is positioned at the descending end via the. In this state, the upper end of the cleaning unit 21 is located at the descending end recessed downward from the chain conveyor 5 (endless chains 5A, 5B).
On the other hand, when the container 2 is carried into the first cleaning unit C2 by the chain conveyor 5, the control device raises the support member 29 to the rising end via the servomotor 27, so that the three-dimensional nozzle 13 is also raised. It is inserted into the inverted container 2 from between the left and right endless chains 5A and 5B (see FIGS. 1 and 3).
Then, in this state, the high-pressure detergent is injected from the three-dimensional nozzle 13, the three-dimensional nozzle 13 revolves around the axis of the cleaning unit 21, and the three-dimensional nozzle 13 revolves around the rotation axis 23. As a result, the three-dimensional nozzle 13 sprays the high-pressure detergent over the entire inner surface 2A of the container 2 while drawing a three-dimensional movement locus, so that the inner surface 2A of the container 2 is cleaned by the cleaning liquid.
As shown in FIGS. 2 to 3, the cleaning unit 21 includes an outer pipe 30A and an inner pipe 30B arranged inside the outer pipe 30A, and the outer pipe 30A and the inner pipe 30B are maintained in the vertical direction. It is rotatably supported in the state. A swivel rotation shaft 23 is orthogonally connected to the upper portion of the inner pipe 30B and connected horizontally, and a three-dimensional nozzle 13 is attached to the tip of the swivel rotation shaft 23 so as to be substantially orthogonal to it. The inside of the swivel rotary shaft 23 and the inner pipe 30B connected to the rotating shaft 23 is a cleaning liquid passage 30C through which the cleaning liquid flows, and a high-pressure cleaning liquid is supplied from the cleaning liquid supply source to the cleaning liquid passage 30C from the three-dimensional nozzle 13. A high-pressure cleaning liquid is sprayed.
The inner pipe 30B is rotated about an axis by the first servomotor 22, and when the inner pipe 30B is rotated, it is horizontally rotated by an interlocking mechanism such as a bevel gear arranged in the drive unit 25. The three-dimensional nozzle 13 is swiveled around the maintained swivel rotation shaft 23 as the center of rotation. Further, the outer pipe 30A arranged so as to surround the inner pipe 30B is rotated about an axis by the second servomotor 24. The operation of the first servomotor 22 and the second servomotor 24 is controlled by a control device, and at the same time the high-pressure detergent is injected from the three-dimensional nozzle 13, the control device is operated by both servomotors 22 and 22. By controlling the operation of the 24, the high-pressure detergent jetted from the three-dimensional nozzle 13 is sprayed onto the inner surface 2A of the container 2 by the three-dimensional movement locus.
As a cleaning device that revolves and swivels the tertiary nozzle by such two servomotors, for example, JP-A-2018-171609 and JP-A-2018-187586 are known, and detailed description thereof will be described here. Is omitted.

The first cleaning device 6 of the first cleaning unit C2 is configured as described above, and on the premise of this, at a position adjacent to the lower side of the container 2 supported by the chain conveyor 5 of the first cleaning unit C2. The guide member 12 is arranged.
As shown in FIGS. 2 to 3, the guide member 12 is formed in an annular shape as a whole, and the cross section (longitudinal cross section) in the direction orthogonal to the circumferential direction is an arc shape with an upper opening. That is, the guide member 12 has a gutter shape formed in an annular shape, and the height of the inner surface on the inner surface is higher than that on the outer side. The maximum outer diameter of the guide member 12 is slightly larger than the outer diameter of the edge 2C which is the opening of the container 2, and the entire upper opening of the guide member 12 is supported by the chain conveyor 5. It is located on the adjacent lower side of the entire edge 2C of the container 2. Further, in order to prevent the cleaning liquid from accumulating in the guide member 12, a plurality of drain holes for draining the liquid are formed at predetermined positions of the guide member 12. Further, the surface of the guide member 12 on which the cleaning liquid is sprayed is preferably mirror-finished in order to suppress attenuation when the cleaning liquid is sprayed. The three-dimensional nozzle 13 of the first cleaning device 6 passes through the central portion of the annular guide member 12, and is moved up and down between the endless chains 5A and 5B of the chain conveyor 5. There is.
As described above, in this embodiment, the guide member 12 is arranged in the first cleaning unit C2 together with the first cleaning device 6. Therefore, as described above, when the high-pressure detergent is sprayed from the three-dimensional nozzle 13 so as to draw a three-dimensional movement locus from the first cleaning device 6, the high pressure is applied diagonally downward as shown in FIG. When the detergent is sprayed, the cleaning liquid is guided by the inner surface of the guide member 12 having an arcuate cross section, and then sprayed onto the edge 2C of the container 2 from below. That is, the first cleaning device 6 cleans the inner surface 2A of the container 2 and at the same time cleans the edge 2C (mouth) located at the lower end. Therefore, according to this embodiment, since the guide member 12 is arranged, not only the inner surface 2A of the container 2 but also the edge 2C at the lower end can be reliably cleaned by the first cleaning device 6.

Next, the second cleaning device 7 of the second cleaning unit C3 will be described. The configuration of the second cleaning device 7 is the same as that of the first cleaning device 6 described above. That is, the second cleaning device 7 includes a cleaning unit 21 having a three-dimensional nozzle 13, a drive unit 25 in which the first servomotor 22 and the second servomotor 24 and the like are housed, and an elevating mechanism 26 for raising and lowering them. ing. The configuration and operation of the second cleaning device 7 is the same as the configuration and operation of the first cleaning device 6, but the second cleaning device 7 uses high-pressure hot water instead of the high-pressure detergent on the inner surface of the container 2. It is designed to inject into 2A.
That is, when the inner surface 2A and the edge 2C of the container 2 are cleaned by the first cleaning device 6 in the first cleaning unit C2, the container 2 is carried into the second cleaning unit C3 by the chain conveyor 5. High-pressure hot water is sprayed from the three-dimensional nozzle 13 of the second cleaning device 7 onto the inner surface 2A of the inner surface 2A to clean the inner surface 2A.
Although the annular guide member 12 is arranged in the first cleaning part C2, the guide member is not arranged in the second cleaning part C3. However, the same guide member as the guide member 12 of the first cleaning unit C2 may be arranged in the second cleaning unit C3.

Next, the rinse cleaning device 11 and the external cleaning device 8 of the rinse portion C4 will be described. The rinsing cleaning device 11 includes a cylindrical water supply unit 31 provided with a rinsing nozzle 31A at the upper end thereof, and an elevating mechanism 32 for raising and lowering the water supply unit 31. A bifurcated rinsing nozzle 31A is arranged at the upper end of the water supply unit 31, and when the washing water is sprayed from the rinsing nozzle 31, the bifurcated rinsing nozzle 31A is the axial center of the water supply unit 31. Is designed to be rotated around the center of rotation.
The water supply unit 31 is supported in the vertical direction by the elevating mechanism 32, and the rinsing nozzle 31A is recessed downward from the chain conveyor 5 and the rinsing nozzle 31A is above the chain conveyor 5. It is designed to be raised and lowered to the rising end position where it is inserted into the container 2.
The elevating mechanism 32 is a support member 35 in which a ball screw 34 arranged in the vertical direction and rotated by the servomotor 33 and a nut portion 35A serving as a base while supporting the water supply unit 31 in the vertical direction are screwed into the ball screw 34. It has.
The operation of the servomotor 33 is controlled by a control device (not shown), and the control device is controlled via the servomotor 33 at the stage before the inverted container 2 is carried into the rinse portion C4 by the chain conveyor 5. The support member 35 is positioned at the descending end. In this state, the rinsing nozzle 31A of the water supply unit 31 is located at the descending end recessed downward from the chain conveyor 5 (endless chain 5A, 5B).
On the other hand, when the container 2 is carried into the rinse portion C4 by the chain conveyor 5 and stopped, the control device raises the support member 35 to the rising end by the servomotor 33, so that the rinsing nozzle 31A also rises to the rising end. Then, it is inserted into the inverted container 2 from between the left and right endless chains 5A and 5B.
The rinsing nozzle 31A communicates with a washing water supply source (not shown) via a liquid supply passage and a conduit 36 formed in the water supply unit 31. When the washing water is supplied from the washing water supply source to the rinsing nozzle 31A through the conduit 36 and the liquid supply passage, the washing water is ejected from the rinsing nozzle 31A toward the inner surface 2A of the container 2 and the rinsing nozzle 31A. Is rotated around the axis of the water supply unit 31 as the center of rotation. As a result, cleaning water is evenly sprayed over the entire inner surface 2A of the container 2 to perform rinsing cleaning.

Next, the external cleaning device 8 includes an inverted U-shaped cleaning pipe 41 provided with a large number of injection nozzles, and a rotating mechanism 42 for rotating the cleaning pipe 41 along the outer peripheral surface of the container 2.
The cleaning pipe 41 includes a horizontal portion 41A which is an upper end portion and two vertical portions 41B extending vertically downward from both ends thereof, and the outer surface of the container 2 is provided at required points of the horizontal portion 41A and the vertical portion 41B. A plurality of cleaning nozzles are provided toward 2B (bottom 2D and outer peripheral surface). The center of the horizontal portion 41A is held by the rotating mechanism 42, and the inside of the horizontal portion 41A communicates with a cleaning liquid supply source (not shown) via the rotary joint and the conduit 43 of the rotating mechanism 42.
When the container 2 in the inverted state is carried into the rinse portion C4 by the chain conveyor 5 and stopped, the horizontal portion 41A of the inverted U-shaped cleaning pipe 41 is located above the bottom 2D of the container 2 and the cleaning pipe. Both vertical portions 41B of 41 are in a state of being close to the left and right sides of the outer peripheral surface.
When the rotation mechanism 42 is rotated by a servomotor (not shown) in this state, the horizontal portion 41A and both vertical portions 41B of the cleaning pipe 41 rotate around the rotation mechanism 42 in the circumferential direction of the container 2. That is, the cleaning pipe 41 orbits around the container 2, and at that time, the cleaning liquid is supplied from the cleaning liquid supply source to the cleaning pipe 41, so that the horizontal portion 41A and the vertical portion 41B of the cleaning pipe 41 are supplied. The cleaning liquid is sprayed from the cleaning nozzle of No. 1 toward the outer surface 2B of the container 2. As a result, the entire outer surface 2B (bottom 2D, outer peripheral surface) of the inverted container 2 is cleaned with the cleaning liquid.
In the rinse portion C4, the outer surface 2B of the container 2 is cleaned by the external cleaning device 8 and the inner surface 2A of the container 2 is rinsed by the rinsing device 11 at the same time.

As described above, in the present embodiment, the inner surface 2A of the container 2 in the inverted state in the first cleaning portion C2 of the cleaning region C is cleaned by the first cleaning device 6, and at the same time, the cleaning liquid guided by the guide member 12. Is sprayed onto the edge 2C of the container 2 from the lower side, and the edge 2C is washed. After that, the inner surface 2A of the container 2 in the inverted state is cleaned by the high-pressure hot water jetted from the second cleaning device 7 in the second cleaning unit C3. After that, in the rinse portion C4, the outer surface 2B of the container 2 is cleaned by the external cleaning device 8, and at the same time, the inner surface 2A of the container 2 is rinsed and cleaned by the rinsing cleaning device 11.
In this way, the container 2 in which the inner surface 2A and the outer surface 2B have been cleaned is discharged to the downstream side of the rinse portion C4 of the cleaning area C along with the intermittent transportation of the chain conveyor 5, and then the drying area (not shown) is dried. The drying process is performed by the mechanism.

As described above, since the guide member 12 is arranged at the position of the first cleaning device 6 of the first cleaning unit C2, the detergent as a cleaning liquid is sprayed from the three-dimensional nozzle 13 to the inner surface 2A of the container 2. At the time of cleaning, the edge 2C (mouth), which is the lower end of the container 2, can also be cleaned with the cleaning liquid at the same time in the cleaning process.
Therefore, after cleaning by the container cleaning device 1 of this embodiment, it is not necessary for the on-site worker to perform the cleaning work of the edge 2C of the container 2, so that the work load on the worker is reduced and the container 2 as a whole is reduced. The time required for cleaning work can be shortened.
Further, in the present embodiment, since the edge portion 2C can be cleaned without providing a dedicated nozzle for cleaning the edge portion 2C of the container 2, the complicated configuration can be suppressed and the consumption amount of the cleaning liquid can be suppressed. Can also be reduced.

Next, FIG. 4 shows another embodiment relating to the first cleaning device 6. In this embodiment, the guide member 12 is formed to have a diameter slightly larger than the mouth portion 2C of the container 2, and the upper opening of the guide member 12 having an arcuate cross section is formed in the container 2 on the chain conveyor 5. The guide member 12 is arranged so as to face the edge portion 2C of the above. Other configurations are the same as those in the first embodiment described above.
In this embodiment, the three-dimensional nozzle 13 is inserted into the inner surface 2A of the container 2 and the cleaning liquid is sprayed to clean the inner surface 2A, and then the three-dimensional nozzle 13 is set to a height below the edge 2C of the container 2. The cleaning liquid is sprayed obliquely upward from the three-dimensional nozzle 13 while being positioned and maintaining the three-dimensional nozzle 13 at a predetermined angle. At that time, since the three-dimensional nozzle 13 is rotated around the axis of the cleaning unit 21, the cleaning liquid jetted from the three-dimensional nozzle 13 is guided by the inner surface of the guide member 12 and then the container 2. It is designed to be sprayed over the entire circumferential direction of the edge 2C.
Even in the example shown in FIG. 4, the same actions and effects as those in the first embodiment can be obtained.

Next, FIG. 5 shows another embodiment relating to the first cleaning device 6. This embodiment has the same configuration as the embodiment shown in FIG. 4, but the cleaning operation is different.
That is, in this embodiment, first, the three-dimensional nozzle 13 is inserted into the inner surface 2A of the container 2 and the cleaning liquid is sprayed to clean the inner surface 2A. After that, the three-dimensional nozzle 13 is positioned at a height below the edge 2C of the container 2, and the three-dimensional nozzle 13 is maintained at a predetermined angle toward the edge 2C of the container 2 from the three-dimensional nozzle 13. The cleaning liquid is sprayed diagonally upward. That is, the cleaning liquid is directly injected from the three-dimensional nozzle 13 onto the edge 2C of the container 2. At that time, since the three-dimensional nozzle 13 is rotated around the axis of the cleaning unit 21, the cleaning liquid ejected from the three-dimensional nozzle 13 is directly injected over the entire circumferential direction of the edge 2C of the container 2. It is supposed to be done. Even in the examples shown in FIG. 5, the same actions and effects as those in each of the above examples can be obtained. The cleaning liquid may be directly sprayed from the three-dimensional nozzle 13 onto the edge 2C of the container 2 before cleaning the inner surface 2A.

In the above embodiment, the first cleaning device 6 and the second cleaning device 7 are configured by using two servomotors (22, 24), respectively, and are disclosed in, for example, Japanese Patent No. 4636956. As described above, a cleaning device using a single servomotor as a drive source may be used.
Further, in the above embodiment, the drainage holes are formed at the required points of the annular guide member 12, but the holes are divided at the edges 2C supported by the endless chains 5A and 5B of the chain conveyor 5. A plurality of fan-shaped guide members 12 may be adopted, in which case the drain hole provided in the guide member 12 can be omitted.
Further, in the above embodiment, the shape of the guide member 12 is annular in accordance with the columnar container 2, but the shape is not limited to this, and can be appropriately changed according to the shape of the container 2.
Further, since the portion of the edge 2C of the container 2 supported by the endless chains 5A and 5B cannot be cleaned with the cleaning liquid as it is, a lifting rotation mechanism is provided to lift the container 2 and then rotate it by a predetermined angle during cleaning. Is also good. In the case of the installation type instead of the intermittent transfer method as in the above embodiment, such a lifting rotation mechanism is not required.
Further, although the elevating mechanism 26 of the above embodiment is composed of a ball screw 28, a support member 29, and a servomotor 27, another elevating mechanism such as an air cylinder may be adopted.
Further, the present invention is not limited to a line-type device that cleans a plurality of containers 2 while being transported one after another by a transport means, but is a stationary container cleaning that carries and cleans the containers 2 one by one at a predetermined cleaning position. It can also be applied to devices.

1 ‥ Container cleaning device 2 ‥ Container 2A ‥ Inner surface 2C ‥ Edge 6 ‥ 1st cleaning device 12 ‥ Guide member 13 ‥ Three-dimensional nozzle (cleaning nozzle) 21 ‥ Cleaning unit 23 ‥ Swivel rotation shaft (swivel rotation member) 30A ‥ Outer pipe 30B ... Inner pipe (rotating member) 30C ... Cleaning liquid passage

Claims (3)

A rotating member provided so as to be axially rotatable, a swirling rotating member provided so as to be axially rotatable and provided in a direction orthogonal to the rotating member, and a cleaning liquid passage formed between the rotating member and the swirling rotating member. In a container cleaning device including a cleaning nozzle attached to the swivel rotating member and ejecting the cleaning liquid supplied through the cleaning liquid passage toward the container.
A container cleaning device including a guide member that guides the cleaning liquid ejected from the cleaning nozzle to be ejected to the edge of the opening of the container. The guide member is arranged along the edge of the container, and the shape of the vertical cross section of the guide member is arcuate.
The cleaning liquid is ejected from the cleaning nozzle into the inside of the container carried into the predetermined cleaning position in an inverted state where the edge of the opening is the lower end, and the cleaning liquid ejected from the cleaning nozzle is the above. The container cleaning device according to claim 1, wherein the container cleaning device is guided by a guide member and sprayed onto the edge of the opening. A rotating member provided so as to be axially rotatable, a swirling rotating member provided so as to be axially rotatable and provided in a direction orthogonal to the rotating member, and a cleaning liquid passage formed between the rotating member and the swirling rotating member. In a container cleaning device including a cleaning nozzle attached to the swivel rotating member and ejecting the cleaning liquid supplied through the cleaning liquid passage toward the container.
The cleaning nozzle is inserted into an inverted container with the bottom facing upward, which is carried into a predetermined cleaning position, and a cleaning liquid is sprayed from the cleaning nozzle before or after cleaning the inner surface of the container. The cleaning liquid is directly sprayed from the lower side toward the edge of the opening at the lower end of the container from the cleaning nozzle located on the lower side of the container to clean the entire edge of the opening of the container. A featured container cleaning device.

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