JP2936252B2 - Container container washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container container washing machine for injecting steam, washing water, washing liquid, etc. into a container container larger than a drum can to wash the inside thereof.

[0002]

2. Description of the Related Art In recent years, a rectangular container having an internal volume several times larger than that of a conventionally used cylindrical drum can has been used.

[0003] Such a container container is much larger in size and weight than a drum can and has a rectangular parallelepiped shape. Therefore, for example, a washing machine for a drum can described in Japanese Utility Model Publication No. 58-45834. Can not be washed using.

Accordingly, when cleaning the inside of the container, the worker has a nozzle for spraying the cleaning liquid and sprays the cleaning liquid or the like toward the inner wall surface from the entrance of the container, or the worker enters the inside of the container. The cleaning liquid was sprayed onto the inner wall surface as appropriate to remove the dirt.

[0005]

However, manual cleaning of container containers having the above-mentioned differences as compared with drum cans is very labor intensive and time-consuming, and the work of discharging residual liquid after cleaning is also the same. It is difficult, and inefficient cleaning by hand requires a large amount of cleaning liquid, and it is difficult to recover the cleaning liquid even when reusing the cleaning liquid.

According to the present invention, the cleaning operation inside the container can be automatically performed in a short time, the inner wall surface can be uniformly cleaned even in the case of a rectangular parallelepiped, and the cleaning water, the cleaning liquid and the like can be easily collected. It is intended to provide a container container washing machine.

[0007]

According to the present invention, there is provided a container container washing machine comprising: a container container;
Arm 12 for gripping the clamp arm 1
An arm drive unit that lifts and turns the container container 2 by rotating the container container 2, and rotates the container container 2 so that the entrance 2 b of the top plate 2 a faces downward. A container rotating device A for displacing the container container 2 onto the conveyor 6 by displacing the container container 2 on the conveyor 6 by displacing the container container 2 to the upper cleaning position, holding the cleaning position while holding the same with the clamp arm 12 and holding the cleaning arm 12 in the opposite direction after cleaning In the container 2 at the washing position, the entrance 2
b, a nozzle elevating device 16 for elevating and lowering a vertically long nozzle support 15 having the nozzle 14 mounted on the upper end thereof, and a case 30 mounted on the lower end of the nozzle support 14 for inserting and extracting the nozzle 14 from the nozzle b. And the nozzle support 1
A nozzle rotating device 17 for horizontally rotating the nozzle 14 by rotating the nozzle 5 with a motor M2, a nozzle oscillating device provided at the upper end of the nozzle support 15 for oscillating the nozzle 14 up and down, It has.

The nozzle support 15 has a double structure comprising an inner pipe 19 and an outer pipe 22. The inner pipe 19 has a fluid pressure passage 21 for supplying a fluid pressure for oscillating the nozzle 14, and an inner and outer pipe. The space between them is a cleaning liquid passage 19a for supplying a cleaning liquid or the like to the nozzle 14.

The nozzle oscillating device includes a hollow nozzle oscillating shaft 24 for pivotally supporting the nozzle 14 at the upper end of the nozzle support 15 in a vertically rotatable manner, and a nozzle support via the hollow nozzle oscillating shaft 24. 15, a fluid pressure cylinder 20 in which a piston 27b is operated by fluid pressure supplied through the nozzle oscillating shaft 24 and the fluid pressure passage 21, and a rack 27a which slides integrally with the piston 27b. Provided on the nozzle swinging shaft 24 and the rack 27
a and a pinion 24b meshing with the piston 27
The nozzle 1416 is vertically swung up and down by the reciprocating sliding of b.

[0010] The nozzle elevating device moves the chain 36 whose base end is fixed to the machine frame 1 via a sprocket 39 attached to the tip of a piston rod S2a of the hydraulic cylinder S2 and a sprocket attached to the machine frame 1. The lower end of the chain is connected to the lower end of the nozzle support 15 to extend and retract the piston rod S2a of the hydraulic cylinder S2 so as to change the length of the middle portion of the chain 36 so that the nozzle support 15 is raised and lowered. .

[0011]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a container container washing machine as one embodiment, FIG. 2 is a plan view thereof, FIG. 3 is a front sectional view of a nozzle support, and FIG. FIG. 5 shows the surrounding line I in FIG.
FIG. 6 is an enlarged view including a partial cross section of a portion indicated by.
FIG. 7 is a sectional view taken along the line III-III of FIG. 5.

As shown in FIGS. 1 and 2, the present container washing machine comprises a container turning device A provided at one side of a machine frame 1.
And a cleaning device B disposed in the machine frame 1. The container turning device A turns the container container 2 upside down, and then the cleaning device B cleans the inside of the container container 2.
The container 2 is, for example, a rectangular parallelepiped having an internal volume of 1000 to 3000 liters, and has an entrance 2b formed in the center of the top plate 2a.

The machine frame 1 has a plurality of upright frames 5 arranged at a required interval between a lower frame 3 and an upper frame 4 which frame a steel die.

The container turning device A lifts the container container 2 on the chain conveyor 6 laid on one side of the machine frame 1, and turns the container 2 so that the top plate 2 a faces downward while washing the container position above the machine frame 1. The details are as follows.

A pair of bearings 7, 7 are fixed on one side end 4 ', 4' of the upper frame 4, and a support shaft 8 is rotatably supported on these bearings. A motor M1 is connected to a front end of the support shaft 8 via a gear mechanism 9. Accordingly, the support shaft 8 is rotated in the forward and reverse directions by driving the motor M1.

At the intermediate portion of the support shaft 8, three support members 1
0 are suspended from each other at a required interval, and the lower ends thereof are provided with container containers 2 on a chain conveyor 6.
Is forcibly protruded horizontally from below.

A base end of the clamp arm 12 is provided at an intermediate portion between the two support members 10 and 10 arranged on both sides of the three support members 10 via upper and lower two brackets 10a and 10a, respectively. Is connected to the tip of the clamper 13 via a bracket 12a so as to be horizontally rotatable.

At the center of the three support members 10, hydraulic cylinders S1 and S1 by hydraulic pressure, pneumatic pressure or the like are arranged in front and rear through a stay 10b. , S1a are pin-connected to clamp arms 12, 12, respectively, which are opposed to these.

When the piston rods S1a, S1a of the fluid pressure cylinders S1, S1 are simultaneously retracted, the pair of clamp arms 12, 12 are closed, the container container 2 is clamped by the clampers 13, 13, and the piston rod S
1a and S1a are simultaneously extended and driven, the clamper 13,
13 opens to release the container container 2 that is being clamped.

When the motor M1 is driven while the container 2 on the chain conveyor 6 is clamped by the clampers 13, 13, the clamp arms 12, 12 rotate upward about the support shaft 8, so that the container 2 Is lifted while being clamped, and when it is moved to the washing position above the machine frame 1, the top plate 2 a is in a posture directing directly below. In other words, the container container 2 is placed on the side of the machine frame 1
Is turned upside down by 180 ° while being moved upward.

As shown in FIG. 1, the cleaning apparatus B has a vertically long nozzle support 15 equipped with a nozzle 14 at its upper end, which can appropriately spray cleaning water, steam, a cleaning liquid, etc. (hereinafter referred to as a cleaning liquid, etc.). A nozzle elevating device 16 for elevating and lowering the nozzle support 15, a nozzle rotating device 17 for horizontally rotating the nozzle support 15, a collection tray 18 for collecting used cleaning liquid and the like, and a cleaning liquid and the like directed toward the nozzle 14. And a feed pump for pressure feeding.

The nozzle support 15 is, as shown in FIG.
The inner pipe 19 has a double structure comprising an inner pipe 19 and an outer pipe 22. The inner pipe 19 has a cleaning liquid passage 19a for supplying a cleaning liquid to the nozzle 14, and the inner and outer pipes 19 and 22 have a hydraulic cylinder 20 which will be described later. A fluid pressure passage 21 through which oil flows is provided. As shown in FIG. 5, a lower end of the inner pipe 19 is connected via a pipe joint 19 b to a feed hose 19 a for feeding a cleaning liquid or the like which is fed from a feed pump, and a lower end of the outer pipe 22. An oil hose 22b is connected to the side via a joint 22a. At the upper end of the nozzle support 15, a mounting head 23 is fixed.

As shown in FIGS. 3 and 4, the nozzle 14 is mounted on a nozzle bracket 25 rotatably supported by a mounting head 23 with a hollow nozzle oscillating shaft 24.
6 is fixed, and is swung up and down by a fluid pressure cylinder 20 fixed to the side surface of the mounting head 23 as described later.

A communication passage 23a is formed in the mounting head 23 so as to communicate with the cleaning liquid passage 19a formed by the inner pipe 19. In the nozzle bracket 25, the injection base 2 is provided.
6 is formed, and the nozzle oscillating shaft 24 has a flow passage 25 a in the mounting head 23.
A through hole 24a is formed at a position facing 3a, and a through hole (not shown) is formed at a position facing a flow passage 25a in the nozzle bracket 25. This allows
The cleaning liquid or the like is supplied to the injection base 26 through the inner pipe 19, the flow path 23a, the nozzle swing shaft 24, and the flow path 25a, and is injected from the base 26 to the outside.

The cylinder case 20 of the hydraulic cylinder 20
A drive rod 27 having a rack 27a that meshes with a pinion 24b formed at the end of the nozzle swing shaft 24 is slidably disposed at the center of a. The spring 2 accommodated in the upper chamber 20b of the cylinder case 20a
The pressure of the hydraulic oil acts upward on the piston 27b at the lower end of the drive rod 27 at all times. In FIG. 3, 20d
Is a communication path connecting the lower chamber of the cylinder case 20a and the fluid pressure passage 21.

When no pressure is applied to the piston 27b by the operating oil, the drive rod 27 is moved to the sliding lower end by the spring 28, and at this time, the nozzle bracket 2
5 is rotated so that the injection base 26 is directed directly upward as shown by the solid line in FIG. When pressure is applied to the drive rod 27 by hydraulic oil, the drive rod 27 is moved to the sliding upper end, whereby the nozzle bracket 25
As shown by a dotted line in FIG. 4, the injection mouthpiece 26 is turned so as to face diagonally downward. Thereby, the nozzle 14 can be swung up and down by remote control using fluid pressure.

The structure of the nozzle rotating device 17 is as follows. As shown in FIG. 5, the nozzle rotating device 17 has its case 30 mounted on the lower end of the nozzle support 15. The case 30 is movable up and down along a pair of guide rods 29, 29 shown in FIG. 6, the upper and lower ends of which are fixed to the lower frame 3 and the upper frame 4 of the machine frame 1, respectively. Case 3
The lower end of the nozzle support 15 is rotatably connected to the 0 bottom plate 30a and the upper plate 30b by bearings.

As shown in FIGS. 6 and 7, on the bottom plate 30a, a worm 33 meshing with a worm wheel 31 fitted to the lower end of the outer pipe 22 and having a sprocket 31 fixed to the end is rotatable. It is arranged in.

The sprocket 31 has a case 30
A chain 35 is stretched between a sprocket 34 fixed to a drive shaft M2a of a motor M2 attached to the side plate 30c of the motor M2, and the nozzle support 15 is rotated by driving the motor M2. By rotating the nozzle support 15, the nozzle 14 is turned in a horizontal plane.

The structure of the nozzle elevating device 16 is as follows. As shown in FIG. 1, a hydraulic cylinder S2 is swingably mounted on the lower frame 3 so as to face upward. As shown in FIG. 6, a pair of sprockets 39, 39 are coaxially and rotatably mounted on the distal end of the piston rod S2a of the hydraulic cylinder S2. On the other hand, two pairs of sprockets 37, 37, 38, 38 are rotatably mounted on the upper frame 4. And these sprockets 3
Two chains 36, 36 are stretched via 7, 37, 38, 38, 39, 39. Two chains 3
6, 36 are fixed to the upper frame 4 at one end, and the other end is a case 3
It is fixed to 0.

Therefore, when the piston rod S2a of the hydraulic cylinder S2 is driven to extend, the nozzle support 15 is lowered, and when the piston rod S2a is driven to retract, the nozzle support 15 is raised, and the nozzle 14 is moved. It can be inserted into the container 2 which has been moved to the cleaning position above the frame 1.

The collection tray 18 is a substantially hoof-shaped flat plate having a flange 18a standing upright except the other side of the machine frame 1, and has an entrance 2b for the container 2 moved to the washing position. The used washing liquid and the like flowing down from the machine frame 1 are inclined so as to flow out to the other side of the machine frame 1. Further, a water treatment device (not shown) or the like is provided downstream of the outflow path of the cleaning liquid and the like, thereby reusing the cleaning water and the cleaning liquid.

Next, a series of cleaning operations will be described.
When the container 2 is conveyed to a predetermined position by the chain conveyor 6, the container 2 is turned into a container turning device A.
, And is lifted by being turned up to the cleaning position above the collection tray 18 and held at this position while being held.

When the lifting operation of the container 2 to the washing position is completed, the nozzle lifting device 16 is driven, and
The nozzle 14 is inserted into the container 2 from the access port 2b.

When the nozzle 14 is moved into the container 2, a cleaning pump (not shown) is operated, and the injection nozzle 2 is moved.
Cleaning liquid or the like is injected from 6 to clean the inside of the container 2. At this time, the nozzle 14 is
Since the ink is swung up and down by 0 and swirled around the nozzle support 15 by the nozzle rotating device 17, the cleaning liquid and the like can be uniformly sprayed into the container 2.

The cleaning liquid and the like used for cleaning are supplied to the entrance 2
b, it flows down onto the collection tray 18, is discharged toward the other side of the machine frame 1, and is subjected to post-processing.

When the washing of the container 2 is completed, the container turning device A is driven again, and the washed container 2 is returned to the chain conveyor 6 to complete the washing operation on the container 2. .

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the invention. In the above description, the container container is lifted and turned to make the entrance of the container container downward, but the container container may be turned without being lifted.

[0039]

According to the present invention, the following effects can be obtained.
While holding the container container with the clamp arm, rotate it with the clamp arm so that the entrance of the top plate faces downward, displace it to the washing position above the collection tray, and move to the washing position while holding the container with the clamp arm. Hold and raise the nozzle with the nozzle elevating device, insert the nozzle from the entrance of the downward facing top plate, and freely spray the nozzle direction up, down, left and right inside the container container while spraying the cleaning liquid etc. from the nozzle The container can be cleaned automatically in a short time, the inner wall surface can be cleaned evenly in a rectangular parallelepiped, and the top Since the washing is performed with the opening of the inlet facing downward, it is possible to easily collect the washing liquid and the like.

The container container can be turned and lifted to the cleaning position only by rotating the clamp arm held by the container container.

There is a condition that the pivot portion including the nozzle must be large enough to be inserted and withdrawn from the entrance of the container container. The former drive unit is separated from the container container by rotating the nozzle support with a motor at its lower end, while the latter drive unit is separated from the upper end of the nozzle support. A fluid pressure cylinder is provided in the nozzle and the linear motion is converted into a rotary motion by the rack and pinion method, and the fluid pressure is supplied to the fluid pressure cylinder from the fluid pressure passage provided in the nozzle support itself to remotely control the fluid pressure cylinder. The drive unit can be made compact to easily meet the above conditions.

The nozzle rotating device is attached to the lower end of the nozzle support and can be moved up and down together with the nozzle support. Therefore, the power is indirectly transmitted by separating the nozzle rotating device from the ascending and descending nozzle support. The power transmission mechanism can be simplified as compared with the case where the power transmission mechanism is used.

A fluid pressure passage for a fluid pressure cylinder for oscillating the nozzle and a cleaning fluid passage for supplying a cleaning fluid and the like to the nozzle are both provided on the nozzle support. Since it is used as a fluid pressure passage, the piping structure can be simplified and the nozzle swinging device can be downsized.

The nozzle support becomes heavy due to the mounting of the nozzle oscillating device and the nozzle rotating device, but the piston rod of the hydraulic cylinder expands and contracts while a part of the weight is borne by the chain. By doing so, it can be raised and lowered lightly.

[Brief description of the drawings]

FIG. 1 is a front view of a container container washer as one embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a front sectional view showing the structure of a nozzle support.

FIG. 4 is a side sectional view including a partial section of the nozzle support.

FIG. 5 is an enlarged view including a partial cross section of a portion indicated by an encircling line I in FIG.

FIG. 6 is a sectional view taken along line II-II in FIG.

FIG. 7 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 2a Top plate 2b Doorway 2 Container container 6 Conveyor 12 Clamp arm 14 Nozzle 15 Nozzle support 16 Nozzle elevating device 17 Nozzle rotating device 18 Collection tray 19 Inner pipe 19a Cleaning liquid passage 20 Fluid pressure cylinder 21 Fluid pressure passage 22 Outer pipe 24 Nozzle swing shaft 24b Pinion 27a Rack 27b Piston A Container turning device B Cleaning device S2 Hydraulic cylinder S2a Piston rod M2 Motor 36 Chain 30 Case 37-39 Sprocket

Continuation of the front page (56) References JP-A-49-96437 (JP, A) JP-A-57-161487 (JP, U) JP-A-47-14872 (JP, U) JP-A-2-83079 (JP) , U) Japanese Utility Model Hei 1-132288 (JP, U) Japanese Patent Publication No. 56-50631 (JP, B2) Japanese Patent Publication No. 48-10350 (JP, B1) Japanese Public Utility Model No. 48-9966 (JP, Y2) (58) Field surveyed (Int.Cl. ⁶ , DB name) B08B 1/00-11/04

Claims (1)

(57) [Claims] A clamp arm configured to grip the container container conveyed by the conveyor, and an arm drive unit configured to rotate the clamp arm to lift and rotate the container container. Container 2
Is displaced to the cleaning position above the collection tray 18 while rotating so that the entrance 2b of the top plate 2a faces downward, and is held at the cleaning position while being held by the clamp arm 12, and after the cleaning, the clamp arm A container rotating device A for rotating the container container 12 in the opposite direction to return the container container 2 onto the conveyor 6, and an upper end for inserting and extracting the nozzle 14 from the entrance 2b into the container container 2 at the washing position. Nozzle 1 in part
A nozzle lifting device 16 for raising and lowering a vertically long nozzle support 15 on which the nozzle support 4 is mounted, and a case 30 mounted on a lower end of the nozzle support 14 and rotating the nozzle support 15 by a motor M2. A nozzle rotating device 17 for horizontally rotating the nozzle 14, and a nozzle support 1 for oscillating the nozzle 14 up and down.
A nozzle swinging device provided at the upper end of the nozzle support 5. The nozzle support 15 includes an inner pipe 19 and an outer pipe 22.
And a fluid pressure passage 21 for supplying a fluid pressure for driving the nozzle 14 to swing.
Between the inner and outer pipes is a cleaning liquid passage 19a for supplying a cleaning liquid or the like to the nozzle 14. The nozzle oscillating device moves the nozzle 14
5 is connected to the fluid pressure passage 21 of the nozzle supporter 15 via the hollow nozzle oscillating shaft 24 pivotally supported on the upper end of the nozzle support 5 in a vertically rotatable manner. The hydraulic cylinder 20 in which the piston 27b operates by the fluid pressure supplied through the shaft 24 and the fluid pressure passage 21, and the rack 27 sliding integrally with the piston 27b
and a pinion 24b provided on the nozzle swing shaft 24 and meshing with the rack 27a. The nozzle 1416 is vertically swung by the reciprocating sliding of the piston 27b. The device connects the chain 36 whose base end is fixed to the machine frame 1 to the piston rod S2a of the hydraulic cylinder S2.
Nozzle support 1 via a sprocket 39 attached to the end of the nozzle and a sprocket attached to the machine frame 1.
5 is connected to the lower end of the hydraulic cylinder S2 to extend and retract the piston rod S2a of the hydraulic cylinder S2 to change the length of pulling down of the intermediate portion of the chain 36, whereby the nozzle support 15 moves up and down. And container container washing machine.