JPS6041587A - Method and device for cleaning trans-bag for conveying powdered and granular body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning method and apparatus for a transformer bag for transporting powder and granular materials.

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.

BACKGROUND OF THE INVENTION Bags such as transbags are often used as a means for transporting granular materials such as grain flour, and used bags are often collected and reused.

As one of these reusable bags, we also designed an opening that can be tied and closed at the top and bottom, taking into consideration the ease of filling powder into the bag and discharging powder and granule from the bag. A bag body made of cloth or the like (referred to as a trans bag) is being considered.

By the way, when reusing such bags in general, it is usually necessary to clean the inside of the used bag. However, even though it is an empty transformer bag, it is not easy to thoroughly clean the inside of the bag once it has been filled with powder. It has become even more difficult to do.

Taking these premises into consideration, the present inventor has repeatedly studied methods for cleaning the aforementioned transformer bag, which is highly useful as a type of safety bag, and as a result, has arrived at the present invention.

The gist of the present invention is to suspend an empty transformer bag for transporting powder or granular materials, which has openings that can be tied and closed at the top and bottom, so that an air flow flowing from the top to the bottom passes through the inside. The powder or granular material is made to hold the transformer bag, and further, an air jet is continuously or intermittently blown out from a nozzle located above the upper opening of the transformer bag, or from a nozzle that moves downward from the opening into the transformer bag. This is in the cleaning method for transport transformer bags.

Note that the air jet flow is preferably blown out toward the inner surface of the transformer bag with appropriate pressure and flow rate, and such continuous or intermittent air jet flow imparts shock or vibration to the transformer bag, This effectively blows away or shakes off the powder that has adhered to the inner surface. In addition, the air flow flowing inside the transformer bag has the effect of collecting the internal powder and granules, and by keeping the transformer bag inflated to a certain extent, it has the effect of blowing away or shaking off powder etc. by the air jet flow described above. It has become effective for improving.

Further, the second invention of the present application is characterized in that the cleaning method can be effectively performed in the middle of a series of transformer bag conveyance systems, and the gist thereof is as follows.・Holding means for suspending a transformer bag for transporting powder and granular material having an opening that can be tied and closed at the bottom via a vertically penetrating cylindrical body to which the upper opening is held, and an air outlet at the upper part. and an air distribution device having all lower air suction ports facing each other at a certain interval below the air distribution device, and an air distribution device that is fixedly provided above the air outlet or capable of descending and rising vertically downward from the air outlet. A nozzle for the air jet Suita provided therein, and a positioning device for positioning the transformer bag suspended through the cylindrical body between the air outlet and the suction port of the air distribution device, The cleaning IT for a transformer bag for transporting powder and granular materials is characterized in that an air jet is intermittently applied to the nozzle while circulating air from above to below.

The present invention will be described below based on embodiments shown in the drawings.

In this embodiment, as shown in FIG. 1, a transformer bag 4 is suspended from a cylindrical body 3 at the lower end of a suspension rod 2 which is run along a fixed route by a guide rail 1, and this suspension attachment position A
This figure shows a case where processing including cleaning is performed according to an abbreviated automatic system while moving in the order of F1, cleaning position B1, bundling position C1, and then storage position.

To give an overview of each device at the cleaning position related to the present invention, in the vicinity of the guide rail 1 that is laterally removed from the construction path, there is an upper air outlet 6 and a lower air outlet 6 that is spaced apart and opposed to the upper air outlet 6. A circulating air distribution device 5 including an air suction lower is disposed, and a cyclone device 8 for collecting powder and granular materials is interposed in the middle thereof.

Above the upper air outlet 6 of the air distribution device 5, an air jet blowout device 9 including a nozzle 10 for blowing out Air Couette is disposed, and the nozzle 10 in this example is provided so as to be movable downward. Note that these details will be described later.

Further, in the vicinity of the air distribution device 5, a transformer bag 4 suspended via a cylinder 3 is connected to the upper and lower air outlets by engaging the cylinder 3 with the upper air outlet.
, a positioning device 11 is disposed between the suction lower. Details of this positioning device 11 will also be described later.

With the above configuration, the transformer bag 4 suspended via the suspension rod 2 and the cylindrical body 3 is mounted at the A position as described above, and then transferred to the B position, and the first detection switch 1
2 detects that it has been moved to position B, it is stopped and the positioning device is driven. Then, when the transformer lug 4 is positioned between the upper and lower air outlets and the suction port, it is moved to the second position. The detection switch 13 detects,
Cleaning is performed by operating the air circulation device and air jet blowing device 9.

This cleaning is performed by inflating the transformer bag 4 to a certain extent by air circulation, and in this state, blowing out the air jet continuously or intermittently while lowering the nozzle 10 of the air jet blowing device several times. This is done by blowing away or shaking off the powder particles adhering to the inner surface, and the blown or shaken-off powder particles are collected by a cyclone device 8.

After cleaning, the transformer bag 4 is removed from the air distribution device, moved to position C, where the lower part is tied and closed, and then transferred to position D, where it is stored in a predetermined storage cabinet or the like.

Next, the details of the cleaning device are shown in Figures 2 to 5.
This will be explained based on the diagram.

FIGS. 2, 4, and 5 show the state in which the transformer bag 4 has been moved to the B position and before the air circulation device 5 is positioned at a predetermined position, and the positioning device 11 is in operation. in the previous state.

In this positioning device 11, an arc-shaped handle 11b that opens toward the front is attached to the tip of the upper end piston rod of a piston-cylinder device 11a arranged at an inclination. It operates by engaging the circumferential part of the holder and pushing it.

On the other hand, three cylindrical bodies are rotatably supported in a vertical plane about an axis 3ai by a suspension rod 2, and the two suspension rods,
It is provided so that it can be bent in the lateral direction perpendicular to the direction of the transfer guide of the rail 1 by means of a pin 2a on the upper end side.

Therefore, with these configurations, when the handle 11b of the positioning device 11 is pushed diagonally upward, the cylindrical body 3 that engages with the handle 11b maintains a vertical posture along the handle pushing direction and moves at will. It will be done.

As shown in FIGS. 3 and 4, the air outlet 6 of the air distribution device is connected to the cylindrical body 3 that is moved as described above.
The side and upper end surfaces of the annular plate 6a are engaged with the lower end surface of the edge of the annular plate 6a forming the opening and the inner surface of the arcuate hanging wall 6b. Thereby, the cylinder 3 is engaged with the lower part of the air suita port 6 and positioned. Note that the inner surfaces of the annular plate 6a and the hanging wall 6b are made of an elastic material.

The transformer bag 4 thus moved to the B position as shown in FIG.
It will be moved and positioned to the position shown in the figure.

The cylindrical body 3 has a cylindrical shape with an opening penetrating in the vertical direction, and a gripping tool 3b for holding the upper opening of the transformer bag 4 is attached to the lower outer periphery of the cylindrical body 3. This gripping tool 3b functions to tighten the upper opening of the transformer bag 4 held around the outer periphery of the cylindrical body by tilting the lever 3ci. FIG. 4 shows a state in which the hugging grip is released.

Next, the lower air suction lower of this example will be described. This suction lower of this example is configured so that it can be moved up and down slightly by an air cylinder 7a, and the above-mentioned up and down movement is ensured by a bellows section 7b on the lower side. It is normally located at the lower position and is operated to move upward when the transformer bag 4 is positioned at a predetermined position.

As described above, with the above configuration, the installation position of the transformer bag 4 in the air circulation device at position B is determined, and the predetermined cleaning is performed.

In this example, the nozzle 10 that blows out the air jet is used so as to pass through the entire cylindrical body 3 and move downward to the inside of the transformer bag.

The effect of the air jet flow is to continuously or intermittently apply impact pressure to the inside of the transformer bag, thereby blowing away or shaking off the powder particles adhering to the inner surface. Further, the jet air blown out may be further mixed with an appropriate disinfectant such as a volatile antiseptic solution or a powder antiseptic agent for cleaning the inside of the transformer bag to enhance the cleaning effect. As can be understood from these facts, it is preferable that the air jet blown out from the nozzle spreads toward the entire inner surface of the transformer bag.

According to the above-described method and device for cleaning transformer bags according to the present invention, it is possible to fill used transformer bags with powder and clean them relatively easily, and the usefulness thereof is unparalleled. It is.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a diagram illustrating the overall outline of a system including a cleaning device;
2 and 3 show side views of the cleaning device, FIG. 2 shows the transformer bag before positioning, and FIG. 3 shows the transformer bag after positioning. 4 and 5 are diagrams showing the relationship between the upper air flow port, the cylinder, and the positioning device, and FIG. 4 is a side view, and FIG.
The figure is a front view. 1... Idle rail 2... Hanging port, door 2a...
Bottle 3... Cylindrical body 3a... Shaft 3b... Holding grip tool 3c... Lever 4... Transformer bag 5... Air distribution device 6... Air outlet 6a... Annular Plate 6b... Hanging wall 7... Air suction lower a... Air cylinder device 7b... Shapara section 8... Cyclone device 9...
- Air jet device 10... Nozzle 11... Positioning device 11a...
・Piston-cylinder device 1, 1 b...Handle Fig. 2 Fig. 3/12/

Claims (4)

[Claims] (1) An empty bag of a transformer/lug for transporting powder and granular materials, which has openings that can be tied and closed at the top and bottom, is suspended so that the air flow flowing upwardly and downwardly passes through the inside, and further the transformer bag is A method for cleaning a transformer bag for transporting powder and granular materials, characterized by continuously or intermittently blowing air from a nozzle located above the upper opening of the transformer bag, or from a nozzle that moves downward from the opening into the transformer bag. . (2) A method for cleaning a transformer bag for transporting powder and granular materials as set forth in claim 1, characterized in that the direction of the air jet flow blown out from the nozzle spreads over the entire radially outer surface of the transformer bag. . (3) A suspension means for suspending a transformer bag for transporting powder and granular material having openings that can be tied and closed at the top and bottom via a vertically penetrating cylindrical body to which the upper opening is held; an air distribution device having an air outlet and a lower air inlet which is opposed to the air outlet at a certain distance below the air outlet; an air jet blowout nozzle that is provided to be able to descend and rise; and a positioning device that positions the transformer bag suspended through the cylindrical body between the blowout port and the suction port of the air distribution device. A cleaning device for a transformer bag for transporting powder or granular material, characterized in that an air jet is applied continuously or intermittently from the nozzle while circulating air from above to below the transformed transformer bag. (4) The cleaning device for a transformer bag for transporting powder and granular materials as set forth in claim 3, wherein the air jet blowing direction from the nozzle spreads over the entire radially outer surface of the transformer bag.