JP2016113206A - Discharging device for flexible container bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a problem that an operator cannot leave a place due to requirement for operation of elevating a flexible container bag until all of powder is discharged upon discharging powder and to prevent generation of dust.SOLUTION: A discharging device for flexible container bag comprises: a bag receiving stage on which flexible container bag suspended by an elevation means is loaded; a cylindrical member which is arranged in an elevatable manner to upper side at a predetermined position below an outlet of the flexible container bag and which leads powder from the outlet to discharging address; and a connection means connecting the outlet of the flexible container bag and upper edge part of the cylindrical member in a detachable manner and in a sealed condition. In the device, 1. the outlet of the flexible container bag and upper edge part of the cylindrical member at a predetermined position are connected by connection means; 2. the elevation means lifts the flexible container bag at a predetermined level from bag receiving stage in a state where cylindrical member is connected to hold it; 3. bottom part of the flexible container bag is drawn downward by self-weight of the connection means and cylindrical member and reduction due to discharging of powder in the flexible container bag to automatically discharge powder.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a flexible container bag discharging device that can automatically discharge powder filled in a flexible container bag while preventing manual dust generation during discharging.

  To discharge the powder filled in the flexible container bag, which is a flexible bag, the operator hangs the flexible container bag with a hoist, etc., and operates the hoist up and down appropriately to make it easier to discharge the powder. It is dropped into the receiving container from the discharge port (see, for example, Patent Document 1).

JP 2004-174339 A (FIG. 3)

The discharge of powder from this conventional flexible container bag has the following problems that are desired to be improved.
(1) When the powder is discharged, the flexible flexible container bag is irregularly deformed according to the discharge of the powder and is not smoothly discharged. Therefore, the worker needs to appropriately raise and lower the flexible container bag in order to facilitate discharge. Therefore, the place cannot be left until the entire amount is discharged.
(2) Dust is easily generated when discharging powder.

  The present invention has been made in view of the above facts, and its technical problem is that when the powder is discharged from the outlet of the suspended flexible container bag, it is necessary to raise and lower the flexible container bag until the entire amount is discharged. An object of the present invention is to provide a flexible container bag discharging device that improves the problem of manpower that an operator cannot leave, and prevents the generation of dust during discharging.

According to the present invention, as a flexible container bag discharging device that solves the above technical problem, a flexible container bag that is a flexible bag body that is filled with powder and is suspended by an elevating means with the discharge port at the bottom positioned downward is provided at the bottom. A bag base that supports the periphery and is placed at a fixed position below the outlet of the flexible container bag that is placed so that it can be raised and lowered freely and guides the powder from the outlet to the destination And a connecting means for detachably connecting the discharge port of the placed flexible container bag and the upper end of the cylindrical member in a sealed state, and by the following procedure,
1. The outlet of the bottom of the flexible container bag placed on the bag cradle and the upper end of the cylindrical member at a fixed position are connected by a connecting means,
2. Untie the string that closes the outlet,
3. The flexible container bag is lifted and held by a predetermined amount in a state where the tubular member is connected by the lifting means,
4). Pull down the bottom of the flexible container bag by its own weight of the connecting means and the cylindrical member, and decrease by discharging the powder in the flexible container bag,
There is provided a flexible container bag discharging apparatus characterized by discharging powder.

  Preferably, the lower part of the cylindrical member is inserted into the receiving part of the discharge destination located below so as to freely move in the vertical direction, and covers the outer side of the receiving part and the inserting part of the cylindrical member, and one end is the receiving part. And a telescopic dustproof means having the other end connected to the cylindrical member.

  In addition, the connecting means includes an annular member having a disk portion formed in a size that covers the discharge port of the flexible container bag on the periphery of the upper end of the cylindrical member, and an exhaust port that is covered with an annular seal on the disk portion. And a plurality of cylinders attached to the cylinder member pressed by.

  The “powder” in the present invention includes various properties such as granular, fine, lump, and strip.

  A flexible container bag discharging device constructed in accordance with the present invention is freely installed at a fixed position below a bag receiving base for supporting the peripheral edge of the bottom of a suspended flexible container bag, and the outlet of the flexible container bag. A cylindrical member that guides the powder from the discharge port to the discharge destination, and a connecting means that detachably connects the discharge port and the upper end portion of the tube member. The cylindrical member is connected by the connecting means, and the flexible container bag is raised together with the cylindrical member from the bag cradle by the lifting means, and the bottom of the flexible container bag is held by its own weight and the powder in the flexible container bag. This is done by lowering the body due to the decrease caused by body discharge.

  The flexible container bag filled with powder and held up by a predetermined amount is pulled down by the lower part of the flexible container bag due to the weight of the connecting means and the cylindrical member and the discharge of the powder in the flexible container bag. Are exhausted.

  Therefore, it is not necessary for the worker to raise and lower the flexible container bag to facilitate discharging during discharging of the powder of the flexible container bag. Once the flexible container bag is set, the worker can leave the place until the whole amount is discharged. Such a problem can be improved. Further, since the discharge port and the cylindrical member are connected in a sealed state, generation of dust can be prevented.

The side view explaining the structure of the flexible container bag discharge apparatus comprised according to this invention. FIG. 2 is a configuration explanatory view of the connecting means shown in FIG. 1. (A) Unconnected state, (b) Connected state. (A)-(d) is a figure which shows the procedure of discharge | emission operation | work. The perspective view of a typical flexible container bag.

  Hereinafter, a flexible container bag discharging apparatus constructed in accordance with the present invention will be described in more detail with reference to the accompanying drawings illustrating preferred embodiments. 1 to 3 are explanatory diagrams of the configuration, and are simply illustrated.

  First, a flexible container bag, which is a typical flexible bag body, will be described with reference to FIG. The flexible container bag denoted by reference numeral 2 includes a cylindrical powder inlet 2b at the top of a cylindrical main body 2a and a cylindrical outlet 2c at the bottom. The inlet 2b is provided with an inlet tie string 2d, and the outlet 2c is provided with an outlet tie string 2e. 2 g of presser cloths with ties to be pressed are provided.

  The flexible container bag 2 is formed of an appropriate material such as cloth, synthetic rubber, or resin depending on the type and properties of the powder to be accommodated. At the upper part of the main body 2a, two hanging ropes 2h for hanging the flexible container bag 2 are provided.

  The flexible container bag discharging apparatus will be described with reference to FIG. The flexible container bag discharging device 4 is a bag receiver for placing the flexible container bag 2 filled with the powder P and suspended by a hoist 6 as an elevating means with the bottom discharge port 2c downward and supporting the peripheral edge of the bottom portion. A cylindrical member 12 that is installed at a fixed position below the base 8 and the discharge port 2c of the flexible container bag 2 that can freely move up and down and guides the powder P from the discharge port 2c to a hopper 10 that is a discharge destination. And the connection means 14 which connects the discharge port 2c of the mounted flexible container bag 2 and the upper end part of the cylinder member 12 in a sealed state so as to be separable. The “fixed position” will be described later.

  The flexible container bag 2 filled with the powder P is hung with its hanging rope 2 h hanging on the hanging bracket 7 of the hoist 6 and is placed on the bag receiving base 8.

  The bag receiving base 8 is formed by welding a steel member such as a round steel pipe or a round steel bar, and has an annular receiving portion 8a for placing the peripheral edge of the bottom portion of the flexible container bag 2, and the receiving portion 8a on the lower hopper 10. A plurality of support columns 8b to be attached to the vehicle.

  The cylindrical member 12 is formed in a cylindrical shape by welding a steel pipe or a steel plate, and a cylindrical main body 12a that is freely inserted in a vertical direction into a receiving portion 10a protruding upward from a hopper 10 positioned below; A disc portion 12b that is welded to the periphery of the upper end of the main body 12a and constitutes a part of the connecting means 14 is provided.

  The connecting means 14 will be described with reference to FIG. 2 together with FIG. The connecting means 14 includes a plurality of the annular member 15 that presses the disk part 12b and the discharge port 2c of the flexible container bag 2 covered on the disk part 12b via the annular seal 14a (Example) Is provided with three cylinders 14b.

  The cylinder 14 b is a double-acting pneumatic cylinder that is attached in a vertical direction on a flat plate portion 12 c provided on the cylindrical member 12, and a rod positioned above is connected to the annular member 15.

  The annular member 15 is formed by welding steel, and an outer annular portion 15a to which the tip of the rod of the cylinder 14b is connected, an inner annular portion 15b that presses the annular seal 14a and the discharge port 2c, and an outer annular portion 15a. And the connection part 15c which connects the inner side annular part 15b radially at three places of the circumferential direction is provided. The outer annular portion 15a need not be annular because the tip of the rod of the cylinder 14b may be connected to the inner annular portion 15b by the connecting portion 15c.

  The seal 14a is formed of an elastic synthetic rubber having a square cross section having substantially the same outer diameter as that of the disc portion 12b.

  The connecting means 14 is formed in such a size that it can pass up and down inside the annular receiving portion 8 a of the bag receiving base 8.

The unconnected state and the connected state of the connecting means 14 will be described.
(1) Unconnected state (FIG. 2 (a)):
The rod of the cylinder 14b is extended so that the space between the disc portion 12b and the seal 14a and the annular member 15 inner annular portion 15b is opened, and the discharge port 2c is passed through this portion to cover the portion of the disc portion 12b and the seal 14a. State.
(2) Connection state (FIG. 2 (c)):
A state in which the rod of the cylinder 14b in a non-connected state is contracted and the discharge port 2c is pressed and held by the annular member 15 against the seal 14a of the disc portion 12b.

  The lower part of the cylindrical member 12 is inserted into the cylindrical receiving part 10a of the hopper 10 located below so as to be freely movable in the vertical direction. One end (lower end) covering the outside of the receiving portion 10a and the insertion portion of the cylindrical member 12 is connected to the receiving portion 10a and the other end (upper end) is connected to the lower surface of the flat plate portion 12c of the cylindrical member 12, and is extendable in the insertion direction. The flexible joint 16 which is a bellows as a dustproof means is provided. The flexible joint 16 is a well-known one formed of synthetic rubber or the like.

  A description will be given mainly with reference to FIG. The “fixed position” of the cylindrical member 12 is a position where the flexible joint 16 positioned between the lower surface of the flat plate portion 12c of the cylindrical member 12 and the receiving portion 10a of the hopper 10 is compressed by the weight of the connecting means 14 in the non-connected state. (The position shown in the figure). This “fixed position” state may be defined by providing a positioning stopper between the tubular member 12 and the receiving portion 10a.

  In the receiving part 10a of the hopper 10, an air connection port 18 with an automatic valve for supplying air for cleaning into the flexible container bag 2 which has been emptied by discharging the powder P, and an automatic valve connected to the dust collector The attached dust collecting port 20 is further provided with a butterfly valve 22 which is an on-off valve.

  The discharge operation by the flexible container bag discharge device 4 will be described with reference to FIG.

(1) Placement of flexible container bag (FIG. 3 (a)):
The flexible container bag 2 filled with the powder P is hung by hanging the hanging rope 2h on the hanging metal fitting 7 of the hoist 6 and lowered onto the bag cradle 8, and the hanging position of the flexible container bag 2 by the hoist 6 is set. Hold in this state. The connecting means 14 is brought into a non-connected state (FIG. 2A) by extending the cylinder 14b, and the discharge port 2c of the flexible container bag 2 is set on the cylindrical member 12.

(2) Connection by connecting means (FIG. 3B):
The rod of the cylinder 14b of the connecting means 14 is contracted and lowered, and the discharge port 2c of the flexible container bag 2 is pressed against the upper end portion of the cylindrical member 12 to be in a connected state (FIG. 2 (a)). 2e (FIG. 2 (a)) is opened and the discharge port 2c is opened.

(3) Lifting the flexible container bag (FIG. 3 (c)):
After connecting the discharge port 2c, the flexible container bag 2 is raised from the bag receiving base 8 by the hoist 6 with a predetermined amount H in a state where the tubular member 12 is connected, and is held at that position.

(4) Powder discharge (FIG. 3 (d)):
The bottom of the flexible container bag 2 is pulled downward by the weight of the cylindrical member 12 connected to the connecting means 14 to discharge the powder P, and further pulled downward by the decrease due to the discharge of the powder P in the flexible container bag 2. The lower part of the bag 2 has a funnel shape in which the powder P is easy to be discharged, and the discharge is promoted and the powder falls. This state is maintained until all the powder in the flexible container bag 2 is discharged. If necessary, the flexible container bag may be deformed with a pusher or the like to promote discharge.

  The predetermined amount H may be set at a position where the discharge is satisfactorily performed according to the discharge state due to the difference in properties of the powder P or the like.

  The effect of the flexible container bag discharging apparatus 4 as described above will be mainly described with reference to FIG.

  The flexible container bag discharging device 4 is freely installed up and down at a fixed position below the bag receiving base 8 supporting the peripheral edge of the bottom of the suspended flexible container bag 2 and the outlet 2c of the flexible container bag 2, A cylindrical member 12 for guiding the powder P from the discharge port 2c to the discharge destination 10 and a connecting means 14 for detachably connecting the discharge port 2c and the upper end of the cylindrical member 12 in a sealed state are provided. The work is performed by connecting the discharge port 2c and the cylindrical member 12 by the connecting means 14, holding the flexible container bag 2 together with the cylindrical member 12 from the bag cradle 8 by the lifting means 6, and holding the bottom of the flexible container bag 2. This is done by pulling downward due to the weight of the connecting means 14 and the cylindrical member 12 and the decrease due to the discharge of the powder P in the flexible container bag 2.

  In the flexible container bag 2 filled with the powder P and held up by a predetermined amount, the lower part of the flexible container bag 2 is pulled down by the weight of the connecting means 14 and the cylindrical member 12 and the decrease due to the discharge of the powder P in the flexible container bag 2. The powder is easily discharged automatically.

  Therefore, there is no need for the operator to raise and lower the flexible container bag to discharge the powder from the outlet of the flexible container bag, and once set, the worker can leave the place until all are discharged. Can be improved. Further, since the discharge port and the cylindrical member are connected in a sealed state, generation of dust can be prevented.

  Moreover, the cylindrical member 12 is inserted into the receiving portion 10a of the discharge destination 10 positioned below the cylindrical member 12 so as to freely move in the vertical direction, and covers the outer side of the receiving portion 10a and the insertion portion of the cylindrical member 12. Includes a telescopic dust-proof means 16 whose other end is connected to the cylindrical member 12 at the receiving portion 10a.

  Therefore, generation of dust can be prevented more reliably.

  Further, the connecting means 14 includes a disk part 12b formed in a size that covers the discharge port 2c of the flexible container bag 2 on the periphery of the upper end of the cylindrical member 12, and an annular seal 14a on the disk part 12b. A plurality of cylinders 14b attached to the cylindrical member 12 that presses the covered outlet 2c with the annular member 15 are provided.

  Therefore, the connecting means 14 reliably connects the discharge port 2c and the cylinder member 12 so that there is no leakage of dust, and has sufficient weight to pull the flexible container bag 2 downward when discharging the powder.

2: Flexible container bag 2c: Discharge port 2e: Tie 4: Flexible container discharge device 6: Hoist (lifting means)
8: Bag rest 10: Hopper (discharge destination)
10a: receiving part 12: cylinder member 12b: disk part 14: connecting means 14a: seal 14b: cylinder 15: annular member 16: flexible joint (dust-proof means)

Claims (3)

A bag cradle for placing a flexible container bag, which is a flexible bag body filled with powder and suspended by an elevating means with the outlet at the bottom downward, supporting the peripheral edge of the bottom;
A cylindrical member that is freely set up and down at a fixed position below the discharge port of the flexible container bag placed and guides the powder from the discharge port to the discharge destination,
A connecting means for connecting the discharge port of the mounted flexible container bag and the upper end of the cylindrical member in a separable state in a separable manner,
The following steps
1. The outlet of the bottom of the flexible container bag placed on the bag cradle and the upper end of the cylindrical member at a fixed position are connected by a connecting means,
2. Untie the string that closes the outlet,
3. The flexible container bag is lifted and held by a predetermined amount in a state where the tubular member is connected by the lifting means,
4). Pull down the bottom of the flexible container bag by its own weight of the connecting means and the cylindrical member, and decrease by discharging the powder in the flexible container bag,
Discharging powder,
A flexible container bag discharging apparatus characterized by that. The cylindrical member
The lower part is inserted freely in the vertical direction into the receiving part of the discharge destination located below,
Covering the outside of the receiving portion and the insertion portion of the tubular member, one end is provided with a retractable dustproof means having the receiving portion connected to the tubular member at the other end,
The flexible container bag discharging apparatus according to claim 1. The connecting means is
A disk part formed in a size that covers the outlet of the flexible container bag on the periphery of the upper end of the cylindrical member;
A plurality of cylinders attached to a cylindrical member that presses the discharge port covered by an annular seal on the disc part with an annular member;
The flexible container bag discharging apparatus according to claim 1, wherein the flexible container bag discharging apparatus is provided.