JPH04256476A - Device for cleaning open drum can - Google Patents

Abstract

PURPOSE:To automatize the cleaning device for cleaning the open drum cans, which are used for containing a liquid with non-fluidity of highly viscous grease, printing ink, paint, etc., and are made of steel or systhetic resin, in order to reutilize them after used. CONSTITUTION:The drum cans which are delivered from a delivering device A are turned over through an overturning device B, the outer circumferences of the drum s are cleaned with brushes at the cleaning device C, and the brushes are inserted into the drums at the cleaning device D for the rough cleaning of the inside. Continuously, at an intermediate cleaning device and a finish cleaning device E, depending on a soiled condition and on the king of contents, a suitable detergent or solvent is ejected inside the drum cans for cleaning. The detergent and the solvent are reused in circulation through the intermediate and the finish cleaning depending on the soiled condition. The drum cans whose cleaning are finished are carried away through a transfer devices F and G. If a solid matter is found stuck to the bottom of a drum can in the course of cleaning, a separate scraping device is used jointly to remove it during the cleaning operation.

Description

[Detailed description of the invention]

0001

[Industrial application field] Fillings stored in open drums made of steel or synthetic resin, substances that generally have no fluidity, such as oils and fats such as grease and butter, and gel-like substances such as printing ink and paint. In order to reuse the empty container after using other highly viscous substances, it is necessary to clean the inside of the open drum. An object of the present invention is to use an automated system to clean the drum after use, without using human hands as much as possible. That is, the present invention can be applied to oils and fats such as grease, butter, or
It is used in the industry to clean open drums that are empty after use as containers for so-called thriller-like high viscosity substances such as paints and printing inks.

0002

2. Description of the Related Art Conventionally, after using an open drum can made of steel or synthetic resin as a filling container for a non-flowable substance, the empty can is reused, so cleaning of the empty can is as follows.
This work was done manually and required a considerable amount of effort. In particular, empty open drums of printing ink are
Printing ink was often stuck to the bottom and inside surfaces. Scraping and cleaning these stuck deposits and residues requires extensive use of cleaning solvents, multiple cleanings, and the use of manual tools such as metal brushes and other cleaning brushes. The labor required for all manual work was enormous.

0003

[Problems to be Solved by the Invention] An object of the present invention is to automate as much as possible the cleaning work when cleaning open drums that have become empty after filling has been used in order to reuse the drums. It is said that

0004

[Means for solving the problem] The invention of “Claim 1” is:
When cleaning used open drums, there is a loading device (A) mainly consisting of a roller conveyor into which the open drums are loaded, an overturning device (B) that lifts and overturns the drums, and an outer periphery that cleans the outer periphery of the drums. A side cleaning device (C), a rough cleaning device (D) that performs the first cleaning of the inner surface of the drum, an intermediate cleaning device (E) that performs the second cleaning, and a final cleaning device (E') and (B) that performs the third cleaning. ~(
A transfer device (F) for transferring each drum to be cleaned over each device of E'), and a transfer device (F) having a transfer conveyor for transferring open drums after cleaning
G) is integrated as a means to solve the above problem. The invention of "Claim 2" provides, as a pre-process for carrying out the invention of "Claim 1", an overturning mechanism for an open drum and a drying of the contents on the inner surface and/or bottom of the empty drum. A spiral (37) that scrapes off hardened deposits or residual hardened solids on the bottom surface, and a mechanism (41) (42) (43) (44) that reciprocates while rotating the cleaning brushes (38) (39). cylinder(
45) attached to the rear, and a collection storage container conveyor roller conveyor (47) for carrying in and out the scraping/washing waste collection storage container (46). Removal of residual or hardened solid matter
Automating the cleaning work is a means to solve the above problem. The invention of "Claim 3" is for solving the above problem by automation, which is a series of systems that implement the invention of "Claim 2" as a first step and the invention of "Claim 1" as a second step. It is used as a means of

[0005]

[Function] In the invention of "Claim 1", the open drum can (1) to be cleaned is forwardly carried into the carry-in device (A) by the electric roller conveyor (2), and the stopper (3) is fixed. stopped in position. After confirming that the transfer device (B) is in the correct downward position and that no drums are loaded, the stopper (3) is released.
The roller conveyor (2) is activated and moves to the overturner (4) of the overturner (B). Tipping device (B) shown in “Figure 3”
When the drum (1) has been moved to the overturning machine (4), the overturning machine cylinder (5) is activated and the overturning machine (4) is raised and overturned, so that the drum can loaded and fixed on top of it is overturned. The position (1) also rises from the vertical state and falls to the horizontal state. The overturned drum (1) is shown in Figure 4.
After confirming that the outer circumferential side cleaning device (C) shown in FIG. The outer peripheral side cleaning device shown in “Figure 4” (
When the drum (1) is located at C), the drum presser cylinder (12) lowers the drum presser with wheels (11) to the drum (1), and the drum (1) is moved to the drum rotating drive wheel (9). Then, the drive motor (10) is started and the driving wheel (9) rotates, so that the drum (1) starts rotating in the opposite direction. Simultaneously with the activation of the drive motor (10), the brush drive motor (8) is activated, and in conjunction therewith, the cleaning brush (7) rotates in the opposite direction to the rotation of the drum, cleaning the outer circumferential side of the drum (1). Wash. Since the drum (1) is pressed downward by the drum wheel presser (11), the wheels of the drum wheel presser (11) rotate in the opposite direction to the rotating direction of the drum (1). To allow the drum (1) to rotate smoothly. The rotation speed and rotation time of the cleaning brush (7) can be varied depending on the degree of dirt on the outer circumferential side surface, and the cleaning brush (7) can be rotated freely.
) The drive motors (10) are rotated alternately in order to improve the cleaning effect of the brushes (10) and to prevent the brushes from becoming curved by rotating in the same direction. When the cleaning is completed, the drum holding cylinder (12) rises,
The drum wheeled presser foot (11) also rises, and the drum (
1) is released from the pressure bond from the drum rotary driving wheel (9). Next, the lower drum can (1), which has been cleaned on its outer peripheral side, is
It is transferred to the rough cleaning device (D) for the inner surface of the drum shown in FIG. When the drum (1) is transferred to the rough cleaning device (D), the drum reciprocating wheels (17) move horizontally due to the stretching action of the drum reciprocating cylinder (18), so the drum (1) moves. , the cleaning brush (13) is now inserted into the drum (1). Next, the driving wheel (15) is rotated by activation of the driving wheel drive motor (16), and the drum can (1) is rotated in a direction opposite to the rotation direction thereof. Simultaneously with this rotation, the cleaning brush drive motor (14) is driven to rotate the cleaning brush (13) interlocked with the cleaning brush drive motor (14), and cleaning is started. When the cleaning brush (13) rotates, a small amount of solvent is sprayed. After cleaning, each of the drive motors (14) and (16) stops, thereby stopping the rotation of the brush (13) and the drum (1). Next, due to the lifting action of the drum tilting cylinder (19), the base of the rough cleaning device (D) is tilted around the drum tilting fulcrum shaft (20), and after discharging the dirty solvent in the drum (1), The tilting cylinder (19) returns to its original position, and then the drum reciprocating cylinder (18)
) is returned to its original position, and the drum reciprocating wheel (17) is moved back.
The drum (1) returns to its original position and the rough cleaning work is completed. The drum can (1) that has been roughly cleaned is transferred to the intermediate cleaning device (E). In the intermediate cleaning device (E) shown in "Fig. 6", the drum can inclined cylinder (2
3), the base of the drum (1) is tilted around the drum tilting fulcrum shaft (24), and the drive motor (22) is activated to rotate the drum rotating wheel (21) which is interlocked with the drum can. ) rotates, rotating the drum (1). During the rotation, a small amount of detergent or solvent is sprayed into the drum (1) to wash away deposits or residue inside the drum (1). When this cleaning is finished, the drive motor (22) stops, so the rotation of the drum (1) also stops, and then the tilted cylinder (23) returns to its original position, and the drum (1) is in a horizontal position. Return to After the intermediate cleaning, the drum (1) is then transferred to the final cleaning device (E'). The final cleaning device is the same as the intermediate cleaning device (E) in the previous step, and the final cleaning is performed by the same operation. Structurally, the intermediate cleaning device (E) and the final cleaning device (E') are integrated. The drum can (1) that has been subjected to the final cleaning is carried out by the carrying-out conveyor (29) of the carrying-out device (G). Sequentially from the overturning device (B), the outer peripheral side cleaning device (C)
, the rough cleaning device (D), the intermediate cleaning device (E), and the final cleaning device (E') are performed by the transfer device (F). That is, the transfer lever in/out cylinder (28) of the transfer device (F) shown in "Figure 2" operates, and the transfer lever (25
) is lowered, and then the transfer cylinder (27) is actuated to rotate the transfer wheel forward, and as a result, the drum (1) pushed by the transfer lever (25) passes over the drum transfer wheel and is transferred to the next is transferred to the device. Transfer lever (
A pulley is provided at the lower end of 25), and when transferring the drum (1), the pulley freely rotates, without damaging the contact surface with the drum (1). Transfer can be done smoothly. When the transfer is completed, the transfer lever in/out cylinder (28) operates in reverse, and the transfer lever (25)
is raised and held in a horizontal position, and then the transfer wheel (26) is rotated backward by reverse operation of the transfer cylinder (27), and the transfer lever (25) is returned to its original position. As shown in FIG. 2, one transfer lever (25) is arranged between each device from the front part of the overturning device (B) to the rear part of the intermediate cleaning device (E). ) are fixed to one rod, and the rod is moved forward or backward by a transfer cylinder (27) via a transfer wheel (26),
With the transfer lever (25) lowered vertically, each drum can is transferred to the next process device. When the transfer is completed, each transfer lever (25) rises and returns to its original position in a horizontal state, and the operation is repeated. The rotation speed and cleaning time of the brush operating in the rough cleaning device (D) can be freely set using a timer depending on the degree of dirt on the drum. The cleaning brush (13) and the drum (1) are rotated in opposite directions, and by alternately rotating in opposite directions, the cleaning effect of the cleaning brush (13) is improved and the cleaning brush (13) is rotated in opposite directions. This prevents the curvature of the material. Moreover, since the action of the rough cleaning device (D) is the main one of the cleaning device of the present invention, based on the device (D), (B) to (E'
) By interlocking the operation time of each device, it becomes possible to operate each device in conjunction with each other. Furthermore, the rough cleaning device (D)
By employing a fuzzy logic circuit, it is possible to automatically read the dirty state of the drum, and to automate the amount of cleaning solvent, the number of rotations of the cleaning brush, the cleaning time, etc. through fuzzy control. The solvent sprayed into the drum during the operation of each cleaning device varies depending on the type of contents to be filled, and is appropriately selected and used, such as kerosene, light oil, caustic detergent, and organic solvent. When cleaning the rough cleaning device (D), intermediate cleaning device (E), and final cleaning device (E'), detergent or solvent is sprayed. These detergents or solvents are circulated in tanks installed in each device. Furthermore, the degree of contamination from the detergent or solvent used in the process is severe, and the later the equipment is located, the less contamination occurs.
Detergents or solvents used for a certain period of time are removed from the final cleaning equipment (E'
) is used by sequentially transferring it from the tank provided in the intermediate cleaning device (E) to the intermediate cleaning device (E) and from the intermediate cleaning device (E) to the rough cleaning device (F), so it is an effective means for saving resources.

[0006] In the residue scraping device according to the invention of “Claim 2”, a cleaning drum conveying roller conveyor (
30) transports the drum (36) to be cleaned. If the bottom of the drum (36) has solidified residues from the used contents, these residues must be removed. The drum can (36) transported by the transport roller conveyor (30) in “Fig. 7”
) is stopped in position by a stopper (31) which stops the drum (36) in position. Clamping device (32) (3) that fixes the stopped drum (36)
3) is fixed. Fixed drum (36)
The drum can (34) fixed to the tipper (34) is raised by the drive of the tipper cylinder (35) shown in FIG. 36) was also overturned and is now in a horizontal position. A spiral (37) for scraping residual contents, a side cleaning brush (38) for cleaning the inner surface of the drum, and a curled end cleaning brush (39) are provided, and the spiral (37)
The cleaning brushes (38) and (39) are springs (4).
0). The spiral (37) is provided at the tip of the spiral shaft (43). The spiral shaft (43) includes a spiral bearing (41),
It is connected to a spiral shaft reciprocating cylinder (45) at the rear end via a spiral shaft rotating sprocket (42). When the spiral shaft drive motor (44) starts, the spiral shaft reciprocating cylinder (44) linked to it
5), the spiral shaft (43) is extended, and the scraping spiral (37), side cleaning brush (38), and curled end cleaning brush (39) are inserted into the drum (36). A steel blade, hard rubber, Teflon plate, ceramic plate, etc. is attached to the tip of the scraping spiral (37), and the rotation of the spiral (37) scrapes the residue at the bottom of the drum. At the same time as the scraping action starts, the side cleaning brush (38) and the curled end cleaning brush (39) move forward while simultaneously rotating while spraying a small amount of solvent inside the drum (36). Perform cleaning. Further, the dry and solidified deposits on the curled portion of the drum can are removed by the curled end cleaning brush (3) due to the action of the spring (40) connected to the spiral (37).
Rough cleaning is performed by step 9). When the tip of the spiral (37) comes into contact with the bottom of the drum (36) and the scraping and cleaning work is completed, the spiral (37) and the cleaning brushes (38) and (39) stop rotating, and When retreating, the scraped off material is scraped out and placed in the collected material storage container (46). When the spiral (37) retreats to the home position, the tipping machine (34) returns to its original position, ie, descends to the vertical state. When the tipping machine (34) returns to its original position, the drum can (36) fixed thereto also returns to its vertical position. When the drum (36) returns to its original position, the clamp cylinder (32) of the fixing device
returns, the clamp shoe (33) is released, and the drum (36) is taken out. The above operations are automated. Similarly to Claim 1, the amount of solvent sprayed into the drum can increases or decreases depending on the adhesion state of the contents at the bottom and side surfaces. Also, the type of solvent is selected that is suitable for the contents. The rotational speed and cleaning time of the cleaning brush are set to conditions suitable for the state of deposits.

[0007] The invention of ``Claim 3'' provides that when there is residual content at the bottom of an open drum, the scraping device according to the invention of ``Claim 2'' scrapes out the residue at the bottom at the same time.
The inside surface and the curled end are cleaned with each cleaning brush, and then the cleaning effect in the open drum cleaning apparatus according to the invention of claim 1 is further improved.

[0008]

Effects of the Invention The invention as claimed in claim 1 cleans open drums by using a loading device (A), an overturning device (B), an outer peripheral side cleaning device (C), a rough cleaning device (D), and an intermediate cleaning device ( E
), the finishing cleaning device (E'), and the unloading device (G) are configured as a series, and the cleaning of the open drum cans to be cleaned is automated, resulting in significant labor savings. In addition, in the rough cleaning device (D), by setting variable timers for the number of rotations of the cleaning brush, cleaning time, etc., it has become possible to automatically adjust the increase or decrease in processing capacity. The invention of "Claim 2" provides that when cleaning an open drum with the apparatus of the invention of "Claim 1", if residue has hardened and adhered to the bottom of the open drum, first, the bottom of the open drum is cleaned. Since it is necessary to remove the residue, the residue can be scraped off using the device according to the invention of "Claim 2", without requiring any manual labor,
The effect of labor saving is significant. Moreover, by scraping and cleaning with the apparatus according to the invention of claim 2, the cleaning effect of the invention of claim 1 becomes greater. Furthermore, “Claim 1
In carrying out the invention, less amount of solvent is used and cleaning time is shorter. The invention of "Claim 3" is a cleaning device that combines the invention of "Claim 2" and the invention of "Claim 1", so even if there is residual content at the bottom, Even if the contents have dried and hardened deposits on the inner surface or curled ends, it is now possible to automate the cleaning process. In particular, the pre-process work of "Claim 2" has further improved the effectiveness of the device operation of "Claim 1." Automation of all processes reduces manual labor, and the labor-saving effect is significant. The present invention makes it possible to reuse open drums, which were conventionally disposable, and has a significant resource saving effect.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an open drum cleaning device according to the invention of claim 1, showing a state in which open drums are being transferred to a carrying device (A) and an overturning device (B).

FIG. 2 is an elevational view of the open drum cleaning device according to the invention of Claim 1, in which open drums are transferred to each of the carry-in devices (A) to the carry-out devices (G), and the overturning device (B ) shows an overturned condition.

FIG. 3 is a side view of the overturning device (B), showing the open drum raised from the vertical position and overturned.

FIG. 4 is a side view of the outer peripheral side cleaning device (C).

FIG. 5 is a side view of the rough cleaning device (D), showing the state before and after the open drum is inserted into the cleaning brush section.

[Figure 6] Intermediate cleaning device (E), final cleaning device (E'
), showing the state before and after a solvent is sprayed into the open drum and the dirty solvent is allowed to flow out by tilting the opening of the open drum downward.

FIG. 7 is a plan view of a device for scraping residue at the bottom of an open drum according to the invention of claim 2.

FIG. 8 is an elevational view of "FIG. 7".

FIG. 9 is a side view of "FIG. 7".

[Explanation of symbols]

A Carrying device 1 Open drum can 2 to be cleaned
Electric roller conveyor 3 Stopper B Overturning device 4 Overturning device 5 Overturning device cylinder 6 Open drum can transfer wheel C
Outer peripheral side cleaning device 7 Cleaning brush 8 Brush drive motor 9 Open drum rotary drive wheel 10
Open drum rotary wheel drive motor 11
Open drum presser foot with wheels 12
Open drum presser cylinder with wheels D
Rough cleaning device 13 Cleaning brush 14 Cleaning brush drive motor 15
Open drum rotating wheel 16 Open drum rotating wheel drive motor 17 Open drum reciprocating wheel 18 Open drum reciprocating cylinder 19 Open drum tilting cylinder 20 Open drum tilting fulcrum shaft E Intermediate cleaning device E' Finish cleaning device 21 Open drum rotating wheel 22
Open drum rotating wheel drive motor 23
Open drum tilt cylinder 24
Open drum tilt fulcrum shaft F Transfer device 25 Transfer lever 26 Transfer wheel 27 Transfer cylinder 28 Transfer lever entry/exit cylinder G
Unloading device 29 Unloading conveyor 30 Washing drum transport roller conveyor 3
1 Stopper 32 Clamp cylinder 33 Clamp shoe 34 Tipping device 35 Tipping device cylinder 36 Cleaning drum 37 Scraping spiral 38 Side cleaning brush 39 Curl end cleaning brush 40
Spring 41 Spiral bearing 42 Spiral shaft rotating sprocket 43
Spiral shaft 44 Spiral shaft drive motor 45
Spiral shaft reciprocating cylinder 46
Collection container

Claims (3)

[Claims] 1. A carry-in device (A) having a stopper (3) at an end in the direction of movement of an electric roller conveyor (2) for moving cleaning drums (1), an overturner (4), and an overturner (4); A tipping machine cylinder (5) that operates the machine (4), a wheel (6) that transfers the drum (1), and a driving wheel drive motor ( 10), a cleaning brush (7), a brush drive motor (8) for driving the cleaning brush (7), a drum rotary drive wheel (9), and a presser foot with drum wheels. An outer peripheral side cleaning device (C) equipped with a drum holding cylinder (12) for lowering the drum (11), a cleaning brush (13), and a cleaning brush (13);
13); a drum reciprocating cylinder (18) that reciprocates a drum reciprocating wheel (17) that reciprocates the drum (1); A driving wheel drive motor (16) that drives a drum rotary wheel (15) that rotates the drum relative to the cleaning brush (13) when the drum is in a fixed position for rough cleaning, and a drive wheel drive motor (16) that drives the drum can after the cleaning, tilts the drum. The drum can tilting cylinder (19) moves the drum can tilting fulcrum shaft (24) by raising the drum can tilting cylinder (23) and the rough cleaning device (D) provided with the drum can tilting fulcrum shaft (20) serving as the tilting fulcrum. An intermediate cleaning device (E) is provided with a wheel drive motor (22) that tilts the drum at a fulcrum and drives a drum rotation wheel (21), and a final cleaning device has the same mechanism as the intermediate cleaning device (E). Apparatus (E') and series (B), (C), (D)
, (E) and (E'), a transfer lever (25) for transferring each drum to be cleaned, and a transfer lever (25) for raising and lowering the transfer lever (25) between a horizontal position and a vertical position. A transfer cylinder (27) that drives a lever lifting cylinder (28) and a transfer wheel (26) that transfers the drum.
) and a transfer device (F) equipped with a transfer device (F) and a transfer device (G) including a transfer conveyor (29) from which drums that have been cleaned are transferred form an open system that can perform a series of continuous operations. Drum cleaning equipment. 2. A carry-in/out electric roller conveyor (30) for carrying open drums to be cleaned is provided with a stopper (31) for stopping the drums in a fixed position and a clamp (32) for fixing the drums that have been stopped in conveyance. )(33) and
A tipping device (34) (35) for tipping the fixed drum in the horizontal direction of the rising direction is provided, and a tipping device (34) (35) is provided to tip the drum (36) at a position opposite to the opening of the drum (36) which is tipped over. There is a spiral (37) that scrapes the remaining contents at the bottom, and a steel blade, hard rubber, or Teflon plate is attached to the tip of the spiral (37), and a side cleaning brush (38) and a curled end are attached to the spiral (37). Cleaning brush (3
9) is connected with a spring (40), and the spiral (37) and both cleaning brushes (38) and (39) are connected to a spiral bearing (41) as a driving mechanism for rotation.
A cylinder (45) is provided at the rear of the spiral shaft rotating sprocket (42), a spiral shaft (43), and a spiral shaft drive motor (44) for reciprocating the rotational drive mechanism. (36
), there is a collected material storage container (46) for storing scraped collected materials, and the container is provided on a transport roller conveyor (47). A device for scraping and cleaning bottom residue. [Claim 3] When cleaning open drums,
An open drum cleaning apparatus having a structure according to a system in which the invention of claim 2 is carried out as a first step, and then the invention of claim 1 is carried out as a second step.