JP2009072744A - Automatic cleaning apparatus for flexible container bag, and cleaning method for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic cleaning apparatus for flexible container bag preventing a working environment from being deteriorated. <P>SOLUTION: The automatic cleaning apparatus for a flexible container bag includes: an arrangement means 10 for vertically arranging a cylindrical flexible container bag; a blowing means 20 introducing air into the flexible container bag from the upper part and inflating the flexible container bag; a spray means 30 for spraying a cleaning agent toward the inner surface of the flexible container bag while vertically moving inside the inflated flexible container bag; and a dust collection means 40 sucking air discharged from the lower part of the flexible container bag and collecting dust in the air. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automatic cleaning apparatus for a flexible container bag and a cleaning method therefor.

  A container used for transporting and storing chemicals, foods, etc., especially when the granular material avoids contamination, moisture, or oxidation, etc. Flexible containers with hooks and hooks attached are used.

  The flexible container has an inner bag formed in a size approximately the same size as the outer bag using a synthetic resin film such as a polyethylene film or a polyethylene laminate film, and has a stain resistance and acid resistance required for the flexible container. The outer bag receives most of the force acting on the bag, and at the same time receives the impact force applied to the packaging bag during the operation by the outer bag to protect it.

  Since these flexible containers are expensive, in many cases, the outer bag is reused by cleaning the inside if necessary. In contrast, used inner bags are cleaned with water to remove the remaining contents, and the inside is cleaned and discarded. However, especially when chemicals require environmental consideration, they are carefully washed and dried. Discarded as industrial waste.

Conventionally, there is a cleaning apparatus as shown in Patent Document 1 as a mechanical cleaning means for cleaning the inner bag. In this cleaning device, air is blown into the inner bag, and hot water as cleaning water is sprayed from the spherical nozzle disposed in the flexible container in a state where the flexible container is inflated to clean the inner surface of the flexible container.
JP 2000-51806 A

  However, in the conventional cleaning apparatus, when cleaning water is sprayed during internal cleaning, the powder particles remaining on the inner surface rise, and are ejected from the flexible container to the outside, so that the surrounding work environment may be deteriorated.

  This invention is made | formed in view of the subject which concerns, and it aims at providing the automatic washing apparatus of the flexible container bag which can wash | clean a used flexible container bag efficiently, and its washing | cleaning method.

  A first invention is an automatic cleaning device for cleaning the inside of a flexible container bag having a main body portion and openings formed at both ends of the main body portion, and the opening portion of the flexible container bag is arranged in the vertical direction. An arrangement means for setting in a state of being fixed, a blowing means fixed to the upper part of the flexible container bag, introducing air into the flexible container bag from an upper opening, and inflating the flexible container bag, and an upper part of the flexible container bag Injecting means that is inserted from the opening and injects the cleaning agent into the flexible container bag while moving in the vertical direction inside the flexible container bag, and for discharging the cleaning agent from the lower opening of the flexible container bag Discharging means and the flexible container bag A dust collecting means for separating air from the cleaning agent from a part opening and collecting air dust, and a controller for controlling operating states of the blowing means, the ejecting means and the dust collecting means. And the controller controls the blowing means so as to introduce more air from the lower opening of the flexible container bag than the amount of air sucked into the dust collector from the upper opening to control the flexible container bag. An automatic cleaning device for a flexible container bag, wherein the cleaning agent is sprayed toward an inner surface of the flexible container bag swollen from the spraying means while maintaining the swollen state.

  In a second aspect based on the first aspect, the dust collecting means includes a support portion that supports the lower opening of the flexible container bag, and collects dust in the air discharged from the lower opening. It is the automatic cleaning apparatus of the flexible container bag characterized.

  According to a third invention, in the first or second invention, the arrangement means is installed on a lifting member that supports the upper opening of the flexible container bag and is movable in the vertical direction, and on the upper part of the lifting member. The lifting member and the positioning member have a slope inclined with respect to the moving direction of the lifting member, the lifting member ascends, and the slope of the lifting member is the slope of the positioning member. The flexible container bag is positioned automatically by being brought into contact with the automatic container bag.

  According to a fourth aspect of the present invention, in the third aspect, the lifting member and the positioning member are formed in a cylindrical shape whose diameter decreases toward the lower side, and the inner peripheral surface of the lifting member is fitted to the outer peripheral surface of the positioning member, An automatic cleaning apparatus for a flexible container bag, wherein the flexible container bag is positioned.

  According to a fifth invention, in the third invention, the arrangement means includes a wire connected to the lifting member, and a lifting means for lifting the wire and arranging the lifting member at a predetermined position. This is an automatic cleaning device for a flexible container bag.

  A sixth invention is the automatic cleaning device for a flexible container bag according to the fifth invention, wherein the lifting means is a winch.

  A seventh aspect of the invention is the automatic cleaning of the flexible container bag according to any one of the first to sixth aspects, further comprising an outer surface injection means for injecting a cleaning agent toward the outer surface of the flexible container bag. Device.

  According to an eighth aspect of the present invention, the openings of the different diameter cylindrical flexible container bags having both ends opened with a small diameter with respect to the main body are arranged in the vertical direction, and the lower openings of the flexible container bags are disposed in the dust in the air. A first step of storing the dust in a support part of the dust collecting means, and inflating the flexible container bag by introducing air into the flexible container bag from an upper opening of the flexible container bag, and the dust collector A second step of sucking air released from the flexible container bag by using a gas and collecting dust in the air, and spraying a cleaning agent on the inner surface of the flexible container bag in a state where the flexible container bag is inflated And a third step. An automatic cleaning method for a flexible container bag.

  A ninth invention is characterized in that, in the eighth invention, after the third step, the fourth step of introducing air into the flexible container bag and drying the flexible container bag is provided. This is an automatic cleaning method for flexible container bags.

  According to a tenth aspect of the present invention, in the eighth or ninth aspect, as a pre-process of the first step, an upper portion of the flexible container bag is attached to a lifting member having a slope that is movable in the vertical direction and inclined with respect to the moving direction. The opening is supported and raised, and the lifting member abuts a positioning member that is installed on the lifting member and has an inclined surface that is inclined with respect to the moving direction of the lifting member to position the flexible container bag. It is the automatic cleaning method of the flexible container bag characterized by including the positioning process to perform.

  According to 1st invention, the inner surface of a flexible container bag can be reliably wash | cleaned with the cleaning agent sprayed on the inner surface of the flexible container bag of the swelled state. In addition, the air discharged from the flexible container bag can be sucked before the cleaning agent is jetted, and the dust in the air can be collected and removed using the dust collector, which deteriorates the working environment around the automatic cleaning device. There is nothing.

  According to the second invention, since the support portion of the dust collector supports the lower opening of the flexible container bag, the air discharged from the flexible container bag can be reliably sucked into the dust collector.

  According to a third aspect of the invention, the disposing means includes a lifting member that fixes the upper opening of the flexible container bag and is movable in the vertical direction, and a positioning member that is installed on the lifting member. By contacting the positioning member, the flexible container bag is accurately positioned.

  According to a fourth aspect of the present invention, in the third aspect, the lifting member and the positioning member are formed in a cylindrical shape whose diameter decreases toward the lower side, and the inner peripheral surface of the lifting member is fitted to the outer peripheral surface of the positioning member, so Therefore, positioning of the flexible container bag can be achieved with an easy configuration.

  According to the fifth aspect of the present invention, the flexible container bag can be pulled up by a simple means including the wire connected to the lifting member and the lifting means for lifting the wire and placing the lifting member at a predetermined position.

  According to the sixth invention, the flexible container bag can be easily pulled up using the winch.

  According to the seventh aspect, since the outer surface injection means is provided, not only the inner surface of the flexible container bag but also the outer surface can be cleaned.

  According to the eighth aspect, the inner surface of the flexible container bag can be cleaned with the sprayed cleaning agent. Moreover, the air discharged | emitted from the inside of a flexible container bag can be attracted | sucked, and the dust in air can be collected and removed using a dust collector, and the working environment around an automatic washing apparatus is not deteriorated.

  According to the ninth aspect, by introducing air even after the cleaning agent is injected, drying of the inner surface of the flexible container bag can be promoted.

  According to the tenth invention, the positioning of the flexible container bag can be easily achieved using the lifting member and the positioning member.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 and 2 are schematic views of an automatic cleaning apparatus for a flexible container bag according to the present invention. FIG. 1 shows a state before the inner bag 1 as an object to be cleaned is installed, and FIG. 2 shows a cleaning state after the inner bag 1 is installed. 3 is a view as seen from an arrow A in FIG. 1, and FIG. 4 is a cross-sectional view taken along a line BB in FIG. In addition, although a flexible container bag is normally comprised by the double structure provided with the outer bag and the inner bag, although the inner bag 1 which is easy to become dirty is demonstrated as an example below, you may apply to an outer bag. Needless to say.

  The automatic cleaning apparatus for a flexible container bag includes a frame 10 that arranges an inner bag 1 to be cleaned at a predetermined position, a fan 20 that introduces air into the arranged inner bag 1, and an inner bag 1 that is inflated by introducing air. A fountain device 30 provided with a fountain nozzle 32 that ejects cleaning water toward the inner surface of the inner bag 1, a dust collecting device 40 that adheres to the inner surface of the inner bag 1 and collects the dust ejected from the inner bag 1 during cleaning, The moving means 50 for arrange | positioning the inner bag 1 in the predetermined position of the flame | frame 10 and the controller 70 which controls these operation | movement integrated are provided.

  The inner bag 1 is formed using a synthetic resin film in a different diameter cylindrical shape with both ends having a small diameter with respect to the main body, and is mainly used as a flexible container bag for conveying granular materials together with an outer bag (not shown). Used.

  The frame 10 includes a columnar member 11 having a U-shaped cross section (see FIG. 4) disposed in the vertical direction, and a top plate 12 fixed to the upper part of the columnar member 11. The pair of column members 11 are arranged in parallel so that the opening of the U-shaped cross section faces each other, and the moving member 13 is arranged so as to be movable up and down over both the cross sections of the column members 11. A lifting member 15 having a hook-like hook 14 is fixed to the moving member 13, and the lifting member 15 moves up and down together with the moving member 13. The lifting member 15 is formed in a cylindrical shape whose diameter decreases toward the lower side, is fixed to the top plate 12, is fitted on the outer peripheral surface of the positioning member 16 having substantially the same shape as the lifting member 15 (see FIG. 2), and is positioned. A hook 17 provided at the upper opening of the inner bag 1 is hung on the hook 14 of the lifting member 15, and the inner bag 1 is also extended upward as the lifting member 15 is lifted. In the present embodiment, the frame 10, the moving member 13, and the lifting member 15 correspond to the disposing means.

  One end of the first wire 18 of the moving means 50 is connected to the upper end of the moving member 13, and the other end of the first wire 18 is connected to the first weight 25 via a pulley 19 fixed on the top plate 12. Fixed to. The first wire 18 is connected to the second wire 26 disposed along the pillar material 11, and the second weight 27 is connected to the end of the second wire 26. Here, the weight of the first weight 25 is set to be heavier than the total weight of the second weight 27, the moving member 13, the lifting member 15, the inner bag 1, and the like. This weight difference is set so that the operator of the automatic cleaning apparatus can reduce the moving member 13 by, for example, pulling down the second weight 27. Therefore, since the weight of the first weight 25 is heavier than the other members described above, the moving member 13 rises along the frame 10, the inner bag 1 is extended upward, and the lifting member 15 is fitted to the positioning member 16. The inner bag 1 is positioned. A winch that winds the wire instead of moving the moving member 13 by a weight may be provided on the top plate 12, and the moving member 13 may be moved up and down by operating the winch.

  A rod-shaped fixing bar 28 is fixed to the moving member 13 so as to protrude outward from the column member 11, and the fixing bar 28 is locked to a handle 29 separately provided from the frame 10. By providing the pin 29a for restricting the rotation of the rotatable handle 29, the rotation of the handle 29 locked by the fixing bar 28 is restricted by the pin 29a. As a result, the rotation of the handle 29 is restricted, so that the moving member 13 to which the fixing bar 28 is fixed is also positioned at a predetermined position.

  Two through holes that open into the positioning member 16 are formed in the top plate 12 of the frame 10 in the vertical direction. One is an inlet for air that the fan 20 blows into the inner bag 1, and one is an actuator 31 that moves the fountain nozzle 32 of the fountain device 30 that cleans the inside of the inner bag 1 in the vertical direction. It is a through hole.

  A fan 20 as a blowing means for introducing air into the inner bag 1 is, for example, an axial fan fixed on the top plate 12.

  The fountain device 30 includes a fountain nozzle 32 provided with two injection ports for injecting cleaning water as a cleaning agent onto the inner surface of the inner bag 1, and an actuator 31 that moves the fountain nozzle 32 in the vertical direction. The fountain nozzle 32 is installed at the tip of the rod portion of the actuator 31 so as to be rotatable around the central axis of the rod portion. The fountain nozzle 32 injects the cleaning water onto the inner surface of the inner bag 1 while rotating around the central axis of the rod portion by the reaction force of the cleaning water injection. A passage (not shown) for supplying cleaning water to the fountain nozzle 32 is formed inside the rod portion of the actuator 31, and a cleaning water pipe 33 is connected to the passage to supply the cleaning water to the fountain nozzle 32. . In FIG. 3, the fan 20 which is an axial fan and the actuator 31 provided with the fountain nozzle 32 may be arranged coaxially. In this case, the fan is placed on the central axis of the inner bag 1. By arranging the position 20 and the position of the fountain nozzle 32, it becomes possible to improve the blowing efficiency of the fan 20 and the cleaning effect of the fountain nozzle 32. In the present embodiment, the fountain device 30 corresponds to the ejecting means.

  A cylindrical support member 44 is disposed below the frame 10. The lower part of the support member 44 is fixed by fitting into a drainage groove 45 following a tank (not shown), while the lower opening of the inner bag 1 is closely attached and fixed to the upper inner surface without air leaking. The

  A duct 43 that opens to the fan 41 that constitutes the dust collector 40 opens in the support member 44. The duct 43 is provided with a filter 42 for separating dust in the air. Therefore, the dust collector 40 includes a fan 41, a filter 42, and a duct 43. Air that has been released from the lower opening of the inner bag 1 by the action of the fan 41 is sucked from the support member 44 into the duct 43. Dust is separated from the air by the arranged filter 42. The duct 43 may be connected to the fan 20 so that air circulates. In the present embodiment, the dust collector 40 corresponds to dust collecting means. Further, the washing water is discharged from a drainage groove 45 formed on the floor surface below the dust collector 40 and processed in a tank (not shown). In the present embodiment, the drainage groove 45 and the tank correspond to the drainage means.

  An outer surface cleaning device 60 for cleaning the outer surface of the inner bag 1 is installed on the outer peripheral portion of the inner bag 1. The cleaning water sprayed from the outer surface cleaning device 60 descends while traveling along the outer surface of the inner bag 1 to remove dirt on the outer surface. In the figure, the fixed outer surface cleaning device 60 is described.

  Next, the cleaning process of the automatic cleaning apparatus for the flexible container bag will be described with reference to FIGS. The cleaning process is controlled by the controller 70 after the inner bag 1 to be cleaned is hung on the hook 14 by an operator.

  First, in step (a), an operator hangs the inner bag 1 as an object to be cleaned on the hook 14. At this time, the lower opening of the inner bag 1 is fitted into the support member 44. After hanging the inner bag 1 on the hook 14, the operator turns the handle 29 to unlock the fixing bar 28. When the lock of the fixing bar 28 is released, the moving member 13 on which the inner bag 1 is hung rises along the pillar material 11 of the frame 10. With this rise, the inner bag 1 is pulled up, and in step (b), the lifting member 15 of the moving member 13 that pulls up the inner bag 1 is fitted into the positioning member 16 and positioned at a predetermined position where the inner bag 1 is cleaned.

  In the subsequent step (c), first, the fan 20 is operated to send air into the inner bag 1 to inflate the inner bag 1. Simultaneously with the operation of the fan 20, the dust collector 40 also operates to start sucking air. Since the lower opening of the inner bag 1 is fixed in the support member 44 in a state where the air is sent into the inner bag 1, the air is reliably sent into the dust collector 40. In this way, dust in the air is collected by the dust collector 40 and does not leak to the outside, and the working environment can be prevented from deteriorating. In addition, in order to maintain the inner bag 1 of the flexible container in an inflated state, the sending amount of the fan 20 is made larger than the air suction amount of the dust collector 40.

  In step (d), the fountain nozzle 32 starts to inject cleaning water, and the fountain nozzle 32 moves downward by operating the fountain device 30 while injecting cleaning water. Depending on the degree of contamination of the inner bag 1, the fountain nozzle 32 may be reciprocated several times up and down. The fountain nozzle 32 rotates by the reaction force of the sprayed cleaning water, and sprays the cleaning water evenly on the inner surface of the inner bag 1 to clean the inner surface of the inner bag 1. The sprayed cleaning water flows into the drainage groove 45 together with the air that has not been sucked into the dust collector 40 and is purified in a tank (not shown).

  In addition, cleaning water is sprayed from the outer surface cleaning device 60 toward the outer surface of the inner bag 1 to clean the outer surface.

  After cleaning, the operator turns off the controller 70 to stop the operation of the fan 20 and the dust collector 40. For example, by pulling down the second weight 27, the lifting member 15 is pulled down, and the handle 29 is moved at a predetermined position. The fixing bar 28 is fixed through. After the fixing bar 28 is fixed, the washed inner bag 1 is removed from the hook 14.

  Further, air may be introduced into the inner bag 1 for a predetermined time after washing. By introducing air after washing, drying in the inner bag 1 can be promoted and the washing time can be shortened.

  As described above, according to the automatic cleaning apparatus for a flexible container bag of the present invention, the blowing means for introducing air into the inner bag from the upper opening of the inner bag and the cleaning agent are sprayed toward the inner surface of the inner bag. Since it is provided with the spraying means and the dust collecting means for collecting dust in the air discharged from the lower opening of the inner bag, the inner surface of the inner bag can be reliably washed with the sprayed cleaning agent, The air discharged from the inner bag can be sucked to collect and remove dust in the air, so that the working environment around the automatic cleaning device is not deteriorated.

  The present invention is not limited to the embodiment described above, and various modifications and changes can be made within the scope of the technical idea, and it is obvious that these are equivalent to the present invention.

Schematic which shows the automatic washing apparatus of the flexible container bag of this invention. Schematic which shows the automatic washing apparatus of a flexible container bag similarly. The arrow view seen from the arrow A of FIG. Sectional drawing of the cross section BB of FIG. The figure explaining the washing | cleaning process of a flexible container bag. The figure explaining the washing | cleaning process of a flexible container bag similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner bag 10 Frame 11 Column 12 Top plate 13 Moving member 14 Hook 15 Lifting member 16 Positioning member 20 Fan 21 Column member 25 1st weight 27 2nd weight 30 Fountain device 31 Actuator 32 Fountain nozzle 33 Washing water piping 40 Dust collection Device 41 Fan 42 Filter 43 Duct 44 Support member 50 Moving means 60 External surface cleaning device 70 Controller

Claims (10)

An automatic cleaning device for cleaning the inside of a flexible container bag having a main body part and openings formed at both ends of the main body part,
An arrangement means for setting the opening of the flexible container bag in a state of being arranged in the vertical direction;
A blowing means fixed to the upper portion of the flexible container bag, introducing air into the flexible container bag from an upper opening, and inflating the flexible container bag;
Injecting means that is inserted from the upper opening of the flexible container bag and injects a cleaning agent into the flexible container bag while moving in the vertical direction inside the flexible container bag;
Discharging means for discharging the cleaning agent from the lower opening of the flexible container bag;
A dust collecting means for sucking air separated from the cleaning agent from a lower opening of the flexible container bag and collecting dust in the air;
A controller for controlling operating states of the blowing means, the jetting means, and the dust collecting means;
The controller inflated the flexible container bag by controlling the blowing means so as to introduce more air from the lower opening of the flexible container bag than the amount of air sucked into the dust collector from the upper opening. While maintaining the state
An automatic cleaning apparatus for a flexible container bag, wherein the cleaning agent is sprayed toward an inner surface of the flexible container bag inflated from the spraying means.   The flexible container bag according to claim 1, wherein the dust collecting means includes a support portion that supports a lower opening of the flexible container bag, and collects dust in the air discharged from the lower opening. Automatic cleaning equipment. The arrangement means includes a lifting member that supports the upper opening of the flexible container bag and is movable in the vertical direction, and a positioning member installed on the lifting member.
The lifting member and the positioning member have slopes inclined with respect to the moving direction of the lifting member,
The flexible container bag according to claim 1, wherein the flexible container bag is positioned by raising the lifting member and contacting the inclined surface of the lifting member with the inclined surface of the positioning member. Automatic cleaning device.   The lifting member and the positioning member are formed in a cylindrical shape whose diameter is reduced toward the lower side, and the inner peripheral surface of the lifting member is fitted to the outer peripheral surface of the positioning member, whereby the flexible container bag is positioned. The automatic cleaning apparatus for a flexible container bag according to claim 3.   4. The automatic flexible container bag according to claim 3, wherein the placement unit includes a wire connected to the lifting member, and a lifting unit that lifts the wire and places the lifting member at a predetermined position. 5. Cleaning device.   6. The automatic cleaning apparatus for a flexible container bag according to claim 5, wherein the pulling means is a winch.   The automatic cleaning apparatus for a flexible container bag according to any one of claims 1 to 6, further comprising an outer surface injection unit that injects a cleaning agent toward an outer surface of the flexible container bag. Dust collecting means for vertically arranging the openings of different-diameter cylindrical flexible container bags whose both ends are opened with respect to the main body, and for collecting dust in the air at the lower openings of the flexible container bags A first step of storing in a support part of
Air is introduced into the flexible container bag from the upper opening of the flexible container bag to inflate the flexible container bag, and the air discharged from the flexible container bag is sucked into the air using the dust collector. A second step of collecting the dust inside,
A third step of spraying a cleaning agent on the inner surface of the flexible container bag in a state where the flexible container bag is inflated;
An automatic cleaning method for a flexible container bag, comprising:   The flexible container bag according to claim 8, further comprising a fourth step of introducing air into the flexible container bag and drying the flexible container bag after the third step is completed. Automatic cleaning method.   As a pre-process of the first process, the upper opening of the flexible container bag is supported and raised on a lifting member having a slope that is movable in the vertical direction and is inclined with respect to the moving direction, and the upper part of the lifting member 9. A positioning step of positioning the flexible container bag by bringing the lifting member into contact with a positioning member having a slope inclined with respect to a moving direction of the lifting member. The automatic cleaning method for a flexible container bag according to claim 9.

Images