JPH09255159A - Fluidizer of power in bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the fluidization of powder promotable by installing a bal holding means holding a bag in a state of having the cut opening turned up, and also a vibro-imparting means installed in the lower part of a bottom part of this bag so as to vibrate this bottom of the bag, respectively. SOLUTION: When powder in a bag Z is drawn and exhausted to the outside, two lower pressing plate members 114 and 116 or upper pressing plate members 122 and 124 are alternately moved in both directions of access and segregation with each other by means of two corresponding air cylinders 118 and 120 or air cylinders 126 and 128, and thereby a barrel of the bag Z is vibrated. With this vibration, powder in the bag Z is broken apart, preventing any inclination in the storage state of powder from occurring. In addition, a vibrator 140 is operated and the bottom of the bag Z is vibrated, whereby the fluidization of powder in the bag Z is promoted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder fluidizing device in a bag filled with powder except for an upper end portion having a cutting port and held by holding means with the cutting port facing upward. Regarding

[0002]

2. Description of the Related Art Paper (or synthetic resin) bags are cut with a cutting blade to open them, and then powder (powder, particles, relatively small lumps) stored in the bags. etc)
As a powder extraction device in the bag,
Conventionally, various forms have been proposed and put to practical use. However, in the conventional powder extracting device in this kind of bag, when cutting the bag or taking out the powder in the bag, dust, mud, and other foreign substances adhering to the outer surface of the bag are The reality was that we couldn't reliably prevent it from getting into our body.

A new device for solving the above-mentioned problem is disclosed in Japanese Patent Application No. 7-131149, May 2, 1995.
Filed by the applicant on the date. In the powder take-out device in the bag in this application, the upper end of the bag is clamped by the clamping means and hung down, and the upper end is cut by the cutting means and opened. The powder in the bag sinks downward due to its own weight, and an empty portion not filled with powder is formed at the upper end. Since the cutting means cuts the upper end of the bag, which is an empty portion where powder is substantially absent, foreign matter adhering to the outer surface of the bag enters the inside of the bag together with the cutting blade at the time of cutting. However, the problem of being mixed with the powder is surely prevented.

The bag is held by the bag holding means with the cutting opening (opening opening) formed by cutting facing upward. The suction port of the powder suction tube is inserted into the bag through this cutting port, and the powder in the bag is sucked and discharged to the outside. Since the cutting port is directed upward, the powder inside is sucked to the outside, so it is not necessary to invert the bag, and therefore foreign matter adhering to the outer surface of the bag is mixed in the powder.
The above problems can be reliably prevented even during powder suction.

[0005]

In the above apparatus, when the powder in the bag is sucked and discharged, as described above, the suction port of the powder suction tube is inserted into the bag through the cut opening. , Suction and discharge the powder in the bag to the outside. The powder in the bag gradually decreases as the powder is discharged. At that time, if the powder is stored in the bag in a significantly uneven state, or if a part of the powder becomes a solidified lump, and the fluidization of the powder is impeded, the powder may be impaired. Since suction and discharge of the body cannot be performed smoothly and reliably, the suction efficiency may be significantly reduced, and the amount of powder remaining (non-sucked) may increase. Therefore, improvement from this point of view has been desired.

The present invention has been made based on the above facts, and its purpose is to suck and discharge powder in a bag,
A new powder fluidizer in a bag, which improves the suction efficiency and reduces the remaining amount of powder by facilitating the fluidization of powder and performing smooth and reliable suction and discharge of powder. Is to provide.

[0007]

According to the present invention, a bag filled with powder except for an upper end portion having a cutting port, and a bag holding device for holding the bag with the cutting port facing upward Means and
And a vibration imparting means disposed below the bottom portion of the bag so as to vibrate the bottom portion of the bag.

In the present invention constructed as above,
The suction port of the powder suction tube is inserted into the bag through the cutting port, and when the powder in the bag is sucked and discharged to the outside, by appropriately operating the vibration applying means to vibrate the bottom of the bag,
The powder in the bag collapses, the stored state becomes uniform, and the fluidization of the powder is promoted. As a result, the suction efficiency of the powder is improved and the remaining amount of the powder is reduced.

According to the present invention, in addition to the above construction, the bag holding means includes a lower pressing means for pressing both lower side surfaces of the body portion of the bag and an upper both side surface above the lower both side surfaces. Upper pressing means capable of pressing, and the lower pressing means includes a pair of lower pressing plate members facing the lower side surfaces, and a direction in which the lower pressing plate members approach and separate from each other. The upper pressing means includes a pair of upper pressing plate members positioned to face the upper side surfaces, and a moving means for moving the upper pressing plate members toward and away from each other. An apparatus for fluidizing powder in a bag is provided, which includes moving means for moving.

In the present invention constructed as described above,
The pair of lower pressing plate members of the lower pressing means and the pair of upper pressing plate members of the upper pressing means are moved in a direction in which they approach each other by corresponding moving means, and press both sides of the body of the bag with substantially the same pressure. As a result, the upper and lower parts of the body of the bag are clamped from both sides, and the bag is held with the cutting opening facing upward. By appropriately setting the pressing force at this time, the bag can be held without supporting the lower part of the bag by the lower pressing means and the upper pressing means. Of course, the lower part may be supplementarily supported by a support stand or the like, and in this case, the bag is prevented from falling, so that the bag is more stably held.

When the suction port of the powder suction tube is inserted into the bag through the cutting port and the powder in the bag is sucked and discharged to the outside, each of the lower pressing plate member or the upper pressing plate member is , The bag body can be vibrated by alternately moving the corresponding moving means in the approaching direction and the separating direction. As a result, the powder in the bag can be destroyed, and the powder can be prevented from being unevenly stored. Further, by appropriately operating the vibration applying means to vibrate the bottom portion of the bag, fluidization of the powder in the bag can be promoted. As a result, the suction efficiency of the powder is improved and the remaining amount of the powder is reduced.

In addition to the bag holding function, the bag holding means in the present invention also has a function of opening the cut opening of the bag. That is, when opening the cutting port of the bag, first move each of the lower pressing plate members in a direction in which they approach each other so as to press both lower side surfaces with a pressure higher than that for simply holding the bag, It is shaped so that the thickness of both lower side surfaces is reduced by a predetermined amount. As a result, the powder in the bag is pushed upward by the volume corresponding to the reduced thickness.
Next, move each of the upper pressing plate members in the same manner,
Molding is performed so that the thickness of both upper side surfaces is reduced by substantially the same amount as described above. As a result, the powder is pushed upward by the reduced volume as described above. By the above-described two-stage molding action, the thickness of the entire bag is formed thinner than the initial thickness, and the powder is pushed up into the upper end portion of the bag where there was substantially no powder. As a result, the cutting opening that defines the uppermost end of the bag is sufficiently wide and surely opened by the upward movement of the powder, and the insertion of the powder suction means into the bag interferes with the cutting opening. It is carried out smoothly without doing.

Although the bag holding means is provided with the lower pressing means and the upper pressing means, another pressing means may be provided depending on the vertical length of the bag. Therefore, the bag holding means is not limited to the one provided with the upper and lower pressing means.

In the present invention configured as described above,
When each of the lower pressing plate member or each of the upper pressing plate member is moved in a direction in which they approach each other and are separated from each other by the respective moving means, the pressing action on both side surfaces of the body part of the bag is It is carried out relatively evenly over a wide area, so that the body of the bag can be effectively vibrated.

According to the invention, in addition to the first-mentioned construction, the lower pressing means include lower suction means acting respectively on the lower side surfaces of the bag, and the upper pressing means are arranged on the upper side surfaces. An apparatus for fluidizing powder in a bag is provided, which includes an upper suction means each acting on a surface.

According to the present invention, when the bag is held by the pressing action of the lower pressing means and the upper pressing means, each of the lower suction means and each of the upper suction means act during the suction and discharge of the powder. Even if the powder does not exist in the bag corresponding to the lower pressing means and the upper pressing means, the bag can be adsorbed and held without breaking the shape of the bag. And, in this adsorption and holding state,
As described above, since the body and bottom of the bag can be vibrated, the suction and discharge of powder can be performed more smoothly.
The suction efficiency is further improved.

According to the present invention, in addition to the structure described at the beginning, the vibration applying means is mounted on the diaphragm member supported on the stationary body via the elastic supporting means and on the lower surface of the diaphragm member. And a vibrator, the upper surface of the diaphragm member,
A powder fluidizer within the bag is provided that is positioned facing the bottom of the bag.

In the present invention, since the vibrating plate member is supported on the stationary body via the elastic supporting means, the vibrating plate member is vibrated in random directions including up, down, left and right by the operation of the vibrator, and The bottom is also oscillated randomly accordingly. As a result, the fluidization of the powder in the bag is promoted more effectively, so that the suction and discharge of the powder are performed more smoothly, the suction efficiency of the powder is further improved, and the remaining amount of the powder is reduced. It will decrease further.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a powder fluidizing device in a bag constructed according to the present invention will be described in detail below with reference to the accompanying drawings. 1 to 4, reference numeral 2 denotes a powder extracting device in a bag, which is provided with a powder fluidizing device 100 (see FIG. 5) in the bag according to the present invention described later.
Therefore, first, the powder takeout device 2 in the bag will be described. For convenience of description, in FIG. 1 to FIG. 4, “front-back direction” means the left-right direction of FIG. 1 (front-back direction of FIG. 2), and “width direction” means the left-right direction of FIG. 1 (front and back direction).

First, referring to FIGS. 1, 2 and 4, a device 2 for extracting powder in a bag is provided with a frame 4 assembled in a rectangular parallelepiped shape. Support frames 6 and 8 that extend horizontally in the width direction of the frame 4 are provided at predetermined height positions of the frame 4, and rectangular rack support frames that extend horizontally on the support frames 6 and 8. 10 and 12 are provided so as to be movable in the width direction via the guide rail means.

The rack support frames 10 and 12 have 12 racks 10a and 12 having substantially the same structure.
a is detachably supported. Each rack 10a has a rectangular parallelepiped shape with an open upper end, and as shown in FIG. 2, both side portions in the left-right direction are provided with support flanges whose bottom surfaces are horizontal. By mounting and fixing a pair of support flanges on both left and right sides of the rack support frame 10, each rack 1
0a are orderly supported in the space of the rack support frame 10 while being adjacent to each other. Each rack 12a is similarly supported by the rack support frame 12. Each of the racks 10a and 12a is formed in such a size that the bag Z can be stored (placed) therein in an upright state so as to be freely taken out, and at least the upper end of the bag Z projects upward by a predetermined height. A rectangular elongated hole is formed in the center of the bottom of each rack 10a and 12a. As will be described later, this hole has a support plate 26 that is moved up and down by an air cylinder 22 provided in the auxiliary moving carriage 18, The racks 10a and 12a are formed in such a size that they can pass without interfering with the bottoms of the racks 10a and 12a.

The rack support frames 10 and 12 are respectively
The frame 4 is movable between a set position on the inner side in the width direction (the position shown by the solid line in FIG. 2) and a bag storing position on the outer side (the position shown by the two-dot chain line in FIG. 2). With the rack support frames 10 and 12 pulled out to the bag storage positions, the powder-containing bags Z are stored in the racks 10a and 12a in an upright state, and then pushed into the racks to be set to the set position. The area in which the rack support frames 10 and 12 are present defines a bag loading area, and each rack 10a and 12a constitutes a bag loading means.

A pair of lower guide rails are provided on the bottom of the frame 4 so as to extend in the front-rear direction along positions near both sides of the frame 4 in the width direction. A lower moving carriage 14 is movably supported on the lower guide rail, and an electric motor 16 for traveling is attached to the lower moving carriage 14, and the lower moving carriage 14 moves according to the forward rotation and the reverse rotation of the lower guide rail. Can be moved back and forth along. This lower guide rail moves the bag loading area to the lower moving carriage 14
Are provided within the range of reciprocating movement.

A pair of auxiliary guide rails are provided on the lower moving carriage 14 so as to extend in the width direction, and an auxiliary moving carriage 18 is movably supported on the auxiliary guide rails. An air cylinder 19 is attached to the lower end of the lower moving carriage 14 at the left end in FIG. 2 so as to extend in the horizontal direction. The piston rod of the air cylinder 19 is used for the auxiliary carriage 18
The auxiliary moving carriage 18 is moved between the A position on the left side of the lower moving carriage 14 and the B position on the right side of the lower moving carriage 14 according to the contraction and extension actions thereof.

Bag pushing means 20 is provided on the auxiliary moving carriage 18. That is, a horizontally extending plate-like bracket is provided at a predetermined height position on the auxiliary moving carriage 18, and an air cylinder 22 for pushing up the bag is provided at the center thereof.
Cylindrical guides are mounted on both sides of the guide so as to extend parallel to the vertical direction. A guide rod 24 is slidably fitted to each guide. The upper end of the piston rod of the air cylinder 22 and each guide rod 2
The upper end of 4 is connected to the lower surface of an elongated support plate 26 that extends horizontally in the width direction. The support plate 26 is moved up and down while maintaining the horizontal state according to the contraction and extension actions of the piston rod of the air cylinder 22.

A pair of upper guide rails are provided on the ceiling of the frame 4 so as to extend in the front-rear direction along positions near both sides of the frame 4 in the width direction. An upper moving carriage 28 is movably supported on the upper guide rail,
An electric motor 30 for traveling is attached to the upper moving carriage 28, and the upper moving carriage 28 is moved in the front-rear direction along the upper guide rail according to the forward rotation and the reverse rotation thereof. The pair of upper guide rails are provided over substantially the entire area of the frame 4 in the front-rear direction.

A pair of auxiliary guide rails are provided on the upper moving carriage 28 so as to extend in the width direction, and an auxiliary moving carriage 32 is movably supported on the auxiliary guide rails. An air cylinder 34 is attached to the left end portion of the upper moving carriage 28 in FIG. 2 so as to extend in the horizontal direction.
The piston rod of the air cylinder 34 is attached to the auxiliary moving carriage 3
It is connected to the left end of 2 and, depending on its contraction and extension,
The auxiliary moving carriage 32 is moved between the A position on the left side of the upper moving carriage 28 and the B position on the right side.

Referring to FIGS. 1 to 3, the auxiliary moving carriage 32
A horizontally extending plate-like bracket is provided below the bottom of the bag, and an air cylinder 36 for suspending the bag is provided at the center of the bracket, and cylindrical guides are provided on both sides thereof in the vertical direction. It is installed so as to extend in parallel. A guide rod 38 is slidably fitted to each guide.
A clamp frame 39 is attached to the lower end of the piston rod of the air cylinder 36 and the lower end of each guide rod 38. Contraction of the piston rod of the air cylinder 36,
According to the extension action, the clamp frame 39 is moved up and down while maintaining the horizontal state. Clamp frame 3
9 is provided with a clamp means 40, and the clamp means 40
Includes two clamp tools spaced substantially vertically in the clamp frame 39 and having substantially the same construction.

Each of the clamp tools includes a holding plate 42 which is a pair of clamping members extending over substantially the entire width of the bag Z in the width direction, and a pair of air for moving the pair of holding plates 42 in a direction in which the holding plates 42 come into contact with and separate from each other. And a cylinder 44. Cylindrical guides are attached to the clamp frame 39 so as to extend parallel to the horizontal direction on both sides of each of the air cylinders 44 which are coaxially opposed to each other and positioned horizontally. A guide rod is slidably fitted in each guide. The holding plate 42 is connected to and supported by the tips of the piston rod and the guide rod of the air cylinder 44, respectively. Contraction of the piston rod of each air cylinder 44,
In accordance with the stretching action, the pair of sandwiching plates 42 are moved so as to be spaced apart from each other or to be pressed toward each other (at this time, the upper end portion of the bag Z is sandwiched).

As described above, the range of movement of the lower carriage 14 in the front-rear direction is substantially within the bag loading area, but the range of movement of the upper carriage 28 in the front-rear direction exceeds the bag loading area and is further forward. Can be moved to. Further, in the range of the bag loading area, the lower moving carriage 14 and the upper moving carriage 28 are controlled so as to move in synchronization with each other. Lower trolley 14
In FIGS. 2 to 4, a line in which the auxiliary moving carriages 18 and 32 are positioned at the position A and moves in the front-rear direction in the upper moving carriage 28 is shown by a symbol X, and the auxiliary moving carriages 18 and 32 are A line positioned at the B position and moving in the front-rear direction is indicated by a symbol Y.

Next, the cutting means 50 for cutting and opening the upper end of the bag Z will be described. The front end of the frame 4 (Fig. 1
A left end portion of the above) and a portion on the substantially line X are provided with a pair of air cylinders 51 so as to extend in parallel in the horizontal direction at intervals in the width direction. Each air cylinder 51
A cylindrical guide is arranged in the middle of the so as to extend in the horizontal direction in parallel with the air cylinder 51. A guide rod is slidably fitted in the guide. A support body 56 is connected to the tip ends of the piston rod and the guide rod of each air cylinder 51, and a cutting blade 58 is connected to and supported by the tip end portion of the support body 56. Support 56 and cutting blade 5
8 extends horizontally in the width direction of the frame 4, and the cutting blade 58 has a width exceeding the entire width of the bag Z. The cutting blade 58 is reciprocated in the front-rear direction of the frame 4 together with the support body 56 in accordance with the contraction and extension action of the piston rod of each air cylinder 51. The area where the cutting blade 58 is present defines the bag cutting area.

Referring to FIGS. 1, 3 and 4, a pair of support frames 62 and 64 extending horizontally in the width direction are provided at a predetermined height in front of the bag loading area of the frame 4. It is provided in the position. Guide rails are provided on and along each of the support frames 62 and 64. A movable carriage 66 is movably supported on the guide rails.
An air cylinder 68 is attached to the front left side of the frame 4 so as to extend in the horizontal direction. Air cylinder 6
The piston rod 8 is connected to the left end of the moving carriage 66. Contraction of the piston rod of the air cylinder 68,
According to the extension action, the moving carriage 66 is moved between the position shown by the solid line and the position shown by the two-dot chain line in FIG.

A powder fluidizing device 100 in a bag constructed according to the present invention is mounted on the moving carriage 66.
The powder fluidizing device 100 in the bag, which also has a function as a bag holding means, will be described in detail later.

Next, the powder suction means 70 will be described with reference to FIGS. 3 and 4. On the front right side of the frame 4, a pair of guide frames 71 and 72 are arranged so as to extend in the vertical direction. An air cylinder 74 is mounted on the upper ends of the guide frames 71 and 72 so as to project vertically upward. A support body 76 is connected to the piston rod of the air cylinder 74. The support body 76 is configured to be movable up and down along the guide frames 70 and 72 by a guide means (not shown) provided between the support bodies 70 and 72. An upper end of a powder suction pipe (suction nozzle) 78 is integrally connected to the support body 76. The shape of the powder suction pipe 78 is defined so that the upper end of the powder suction pipe 78 extends in the vertical direction and the intermediate portion extends downward, and the powder suction pipe 78 inclines toward the left side of the frame 4 and the lower end thereof extends in the vertical direction. A lower end of the powder suction pipe 78 defines a suction port portion, and an upper end thereof is connected to a suction pump which is a suction source via a flexible pipe, a pipe member and the like.

Therefore, the powder suction pipe 78 is vertically moved up and down in response to the expansion and contraction operation of the piston rod of the air cylinder 74, and when the suction port is inserted into the bag Z, the suction pump is operated. As a result, the powder in the bag Z can be discharged and transported to a desired container. The region where the powder suction pipe 78 moves up and down to suck the powder thus defines the powder suction region. Therefore, it can be said that the movable carriage 66 equipped with the powder fluidizing device 100 in the bag is movable between the bag cutting area and the powder suction area. In the powder suction area, the bag Z is held by the powder fluidizing device 100 in the bag serving as a bag holding means, with the upper end portion left filled with the powder and the cutting opening facing upward. .

Referring to FIGS. 1 and 3, a scraper of the bag Z and a hopper 80 for collecting empty bags are arranged at the front end of the frame 4, that is, at a position below the bag cutting area and the powder suction area. There is. A screw conveyor 82 for compressing and transporting empty bags is attached to the bottom of the hopper 80 so as to extend in the width direction. The screw conveyor 82 is rotationally driven by an electric motor (not shown). The empty bag from which the powder has been discharged in the powder suction area is dropped into the hopper 80, transferred by the screw conveyor 82 to the left in FIG. 3, and discharged from the discharge port 84.

Next, the operation of the powder take-out device in the bag constructed as described above will be described. First, the outline of the operation will be described. The bag Z taken out in the bag placing area is transferred to the bag cutting area. The bag Z transferred to the bag cutting area is held by the powder fluidizing device 100 in the bag as a bag holding means, and then the upper end portion is cut by the cutting means 50. The bag Z whose upper end has been cut is transferred to the powder suction area with the opening opening facing upward. In the powder suction area, the suction port of the powder suction means 70 is inserted into the bag Z from the opening, and the powder is sucked and discharged. These operation controls are performed by a control device including a microcomputer, a sensor provided in each part, a switch, etc., but description thereof will be omitted here.

Next, the operation will be described in more detail. In the bag loading area, the powder-containing bags Z placed in the respective racks 10a and 12a and arranged in an upright state are taken out one by one in a predetermined predetermined order, and then placed in the bag cutting area. Be transferred. Here, as an example, the operation of taking out and transferring the bag Z placed and stored in the rack 10a arranged in the X line in the seventh position from the right in FIG. 1 will be described. With reference to FIGS. 1, 2 and 4, the upper moving carriage 28 and the lower moving carriage 14 positioned at the right end of FIG. 1 are interlocked to move forward to move to the predetermined bag loading position S1.
Will be stopped. During this movement, the auxiliary moving carriage 32 of the upper moving carriage 28 and the auxiliary moving carriage 18 of the lower moving carriage 14 are respectively positioned at the position A in FIG.

The support cylinder 26 is raised by the air cylinder 22 of the auxiliary moving carriage 18 through the hole at the bottom of the rack 10a, and the bag Z is pushed up to a predetermined height position in an upright state. Next, the clamp frame 39 is lowered to the upper end position of the bag Z by the air cylinder 36 of the auxiliary moving carriage 32. The sandwiching plates 42 of the upper and lower clamp tools are at predetermined spaced positions, and are positioned on both sides of the upper end of the bag Z with a predetermined spacing. The holding plates 42 are moved in the approaching direction by the air cylinders 44 of the upper and lower clamp tools, and the upper end of the bag Z is firmly held. The upper end portion of the bag Z is a region where powder is substantially absent, and is clamped in a state where the inner surfaces thereof are pressed against each other.

The clamp frame 39 is raised to the highest position by the air cylinder 36, and the bag Z is clamped by the clamp means 4.
It is completely pulled out from the rack 10a and suspended while being clamped by 0. The bag pushing means 20 is lowered to the lowest position. In the state where the bag Z is suspended, the upper moving carriage 28 is moved to the left in FIG. 1, moves to the cutting (bag opening) standby position S3 via the position S2, and stops. The auxiliary moving carriage 32 at the position A in FIG. 2 moves on the X line.

Next, the upper carriage 28 is moved to the cutting standby position S.
Moved further left from 3 and cut position S, which is the bag cutting area
Stop at 4. The cutting blade 58 of the cutting means 50 is located at a position close to the left side of the upper end of the bag Z clamped by the clamp means 40, and is positioned at an intermediate portion in the vertical direction of each clamp tool of the clamp means 40. Next, the moving carriage 66 positioned in the powder suction area on the left side of FIG. 3 is moved to the bag cutting area by the air cylinder 68. Next, the bag Z is held by the powder fluidizing device 100 in the bag as a bag holding means described later. Therefore, the bag Z is held together with the clamping means 40 by the powder fluidizing device 100 in the bag.

In this state, the cutting blade 58 moves the air cylinder 5
1 moves at high speed toward the upper end of the bag Z, and cuts across the entire width of the bag Z. After that, the cutting blade 58 is returned to the home position.

After the cutting blade 58 cuts the upper end of the bag Z and is returned to the home position, the upper clamp tool of the two clamping tools of the clamping means 40 releases the upper end of the bag Z. . This action is performed by moving the holding plates 42 in the direction in which they are separated by the air cylinder 44 of the upper clamp tool. As a result, the cut piece at the upper end of the separated bag Z falls into the hopper 80. Then, the lower clamp tool releases the clamp on the upper end of the bag Z in the same manner as described above. The bag Z is held only by the powder fluidizer 100 in the bag. The clamping means 40 is raised to the highest position.

The moving carriage 66 positioned in the bag cutting area on the right side of FIG. 3 is moved to the powder suction area on the left side by the air cylinder 68. The bag Z is positioned in the powder suction area in an upright state with the opening of the bag up. The cutting port of the bag Z is opened sufficiently wide by the powder fluidizing device 100 in the bag as described later. The powder suction pipe 78 is lowered by the air cylinder 74 of the powder suction means 70, and the suction port at the lower end thereof is inserted into the opening of the bag Z. Then, the suction pump provided in association with the powder suction means 70 is operated to suck and discharge the powder. The descending of the powder suction pipe 78 is continued until the suction port portion at the lower end thereof reaches the lowest part of the bag Z.

After the powder in the bag Z is completely sucked, the powder suction tube 78 is raised and returned to the original position (the position shown by the solid line in FIG. 3). Bag Z by powder fluidizer 100 in the bag
Is released and the empty bag Z is dropped into the hopper 80. The upper moving carriage 28 moves to the bag loading area again, and is positioned on the upper and lower portions of the next rack 10a together with the lower moving carriage 14. The above cycle is repeated.

In the above-mentioned powder extracting apparatus 2 in the bag, the upper end of the bag Z is clamped by the clamp means 40 and hung down. In this state, the clamped upper end is cut by the cutting means 50 and opened.
The upper end of the bag Z is an empty portion where powder is not substantially present. That is, the powder in the bag Z sinks downward due to its own weight, and an empty portion not filled with powder is formed at the upper end. That is, in the device 2, the cutting means 50 is
It is configured to cut the upper end of the bag Z, which is an empty portion substantially free of powder. As a result, there is surely a problem that dust, mud, and other foreign matter adhering to the outer surface of the bag Z enter the inside of the bag Z together with the cutting blade 58 at the time of cutting and mix into the powder. To be prevented.

The bag Z is held by the powder fluidizing device 100 in the bag with the opening formed by cutting facing upward. The suction port of the powder suction means 70 is inserted into the bag Z through this opening. By the operation of the powder suction means 70, the powder in the bag Z is sucked to the outside through the suction port,
Is discharged. That is, in the device 2, the bag Z is inverted and the powder is not taken out by dropping the powder from the opening, but the powder inside is sucked to the outside with the opening facing upward. It As a result, it is possible to reliably prevent the problem that foreign matter adhering to the outer surface of the bag Z is mixed into the powder.

Next, the apparatus 100 for fluidizing powder in the bag according to the present invention will be described. With reference to FIG.
Support members 102 and 104 are provided on the front side of 6 and support members 106 and 108 are provided on the rear side thereof so as to extend in the vertical direction at intervals. Lower pressing means 110 is provided below each of the supporting members 102 to 108, and upper pressing means 112 is provided above. The lower pressing means 110 and the upper pressing means 112 constitute a bag holding means.

The lower pressing means 110 includes a pair of lower pressing plate members 114 and 116 which are substantially rectangular, and a moving means for moving the lower pressing plate members 114 and 116 toward and away from each other. . The means of transportation is
Air cylinder 1 supported by support members 102 and 104
18. It includes a cylindrical sleeve (not shown) supported by the support members 102 and 104 with the air cylinder 118 sandwiched in the width direction at intervals, and a guide rod (not shown) slidably supported by each sleeve. Air cylinder 1
The tip of the piston rod 18 and the tip of the guide rod are connected to the lower pressing plate member 114. The moving means also includes an air cylinder 120 supported by the support members 106 and 108, a cylindrical sleeve (not shown) supported by the support members 106 and 108 with the air cylinder 120 being sandwiched at intervals in the width direction, and each sleeve. It includes a guide rod (not shown) slidably supported. The tip of the piston rod and the tip of the guide rod of the air cylinder 120 are connected to the lower pressing plate member 116.

The upper pressing means 112 includes a pair of lower pressing plate members 122 and 124 which are substantially rectangular, and a moving means for moving the upper pressing plate members 122 and 124 toward and away from each other. . The means of transportation is
Air cylinder 1 supported by support members 102 and 104
26, a cylindrical sleeve (not shown) supported by the support members 102 and 104 with the air cylinder 126 sandwiched in the width direction at intervals, and a guide rod (not shown) slidably supported by each sleeve. . The tip of the piston rod and the tip of the guide rod of the air cylinder 126 are connected to the upper pressing plate member 122.
The moving means also includes an air cylinder 128 supported by the support members 106 and 108, a cylindrical sleeve (not shown) supported by the support members 106 and 108 with the air cylinder 136 sandwiched at intervals in the width direction and each sleeve. It includes a guide rod (not shown) slidably supported. The tip of the piston rod and the tip of the guide rod of the air cylinder 128 are connected to the upper pressing plate member 124.

In FIG. 5, reference numeral 130 is a moving carriage 66.
It is a support table provided in the central part in the front-rear direction, and its upper end is formed flat so that the bottom part of the bag Z is placed. With the bag Z placed on the support 130, the lower pressing plate members 114 and 116 are positioned so as to be opposed to each other with a space therebetween with the lower both side surfaces of the body portion of the bag Z sandwiched therebetween. The plate members 122 and 124 are the bag Z.
Are positioned so as to be opposed to each other with a space therebetween, with both upper side surfaces of the body portion of the body sandwiched therebetween.

On the back surface of the support base 130, a vibrator 140 constituting a vibration applying means is mounted. The construction of the vibrator 140 itself is well known to those skilled in the art,
Commercially available (for example, commercially available from Murakami Seiki Co., Ltd. under the model name "KEE series" and the product name "Eurus vibrator"). Therefore, the vibrator 140 can directly apply the product. The vibrator 140 is configured by fixing an eccentric weight to the rotating shaft of the electric motor.

Next, the operation of the powder fluidizing device 100 in the bag constructed as described above will be described. With reference to FIGS. 1 and 5, the bag Z transferred to the bag cutting area by the clamping means 40 is between the lower pressing plate members 114 and 116 facing each other with a space therebetween, and the upper pressing plate member 122. And is located between 124 and 124. The bottom of the bag Z is placed on the support base 130 (see FIG. 1). By operating the air cylinders 118 and 120, 126 and 128, the lower pressing plate members 114 and 116 and the upper pressing plate members 122 and 124 are moved by a predetermined stroke in a direction in which they approach each other, and the body portion of the bag Z is handled. Both side surfaces (areas filled with powder) are pressed with a predetermined pressing force. As a result, the bag Z is held by the lower pressing means 110 and the lower pressing means 112 which constitute the holding means. After that, the upper end of the bag Z is cut by the cutting blade 58 as described above. The cutting blade 58 and the clamping means 40 are separated from the upper end of the bag Z. The bag Z is moved to the powder suction area by the moving carriage 66 (see the position indicated by the chain double-dashed line in FIG. 3).

First, the air cylinders 118 and 120 are actuated to move the lower pressing plate members 114 and 116 by a predetermined stroke in a direction in which they come closer to each other, and the bag Z is moved.
By pressing both lower side surfaces of the body portion, the thickness of the lower both side surfaces is reduced by a predetermined amount (see FIG. 6). As a result, the powder in the bag Z is pushed upward by the volume corresponding to the reduced thickness. Next, the air cylinders 126 and 128 are operated, and the upper pressing plate members 122 and 12 are activated.
4 are moved by a predetermined stroke in a direction in which they approach each other, and the upper side surfaces of the body portion of the bag Z are pressed to reduce the thickness of the upper side surfaces by a predetermined amount (see FIG. 7). ). As a result, the powder is pushed upward by the reduced volume as described above. By the above-described two-step molding action, the thickness of the entire bag Z is formed thinner than the initial thickness, and the powder is pushed up into the upper end portion of the bag Z where there was substantially no powder. As a result, the cutting edge that defines the uppermost end of the upper end of the bag Z is sufficiently wide and surely opened by the lifting action of the powder.

Then, as shown in FIG. 3, a powder suction tube 78 is provided.
Is lowered, is inserted into the bag through the opening of the bag Z, and the powder is sucked and discharged. When the powder in the bag Z is sucked and discharged to the outside, the lower pressing plate members 114 and 116 or the upper pressing plate members 122 and 124 are brought closer to each other by the corresponding air cylinders 118 and 120 or air cylinders 126 and 128. The body of the bag Z can be vibrated by moving the bag Z alternately in the moving direction and the separating direction. As a result, the powder in the bag Z can be collapsed, and the powder can be prevented from being unevenly stored. Further, by vibrating the bottom portion of the bag Z by operating the vibrator 140, fluidization of the powder in the bag Z can be promoted. As a result, the suction efficiency of the powder is improved and the remaining amount of the powder is reduced.

FIG. 8 and FIG. 9 show another embodiment of the lower pressing means 110 and the upper pressing means 112 of the powder fluidizing device 100 in the bag. 8 and 9, parts that are substantially the same as those of the device shown in FIG. 5 are designated by the same reference numerals, and description thereof will be omitted. Cylindrical sleeves 150 and 152 are attached to the support members 102 and 104, respectively.
Guide rods 154 and 156 are slidably supported by and 152. The lower pressing plate member 114 is connected to the tip of the guide rod 154. An upper pressing plate member 122 is connected to the tip of the guide rod 156. Similarly, cylindrical sleeves 160 and 162 are attached to the support members 106 and 106, and the guide rods 164 and 16 are attached to the sleeves 160 and 162.
6 is slidably supported. A lower pressing plate member 116 is connected to the tip of the guide rod 164.
An upper pressing plate member 124 is connected to the tip of the guide rod 166.

The lower pressing means 110 includes lower suction means acting on both lower side surfaces of the body of the bag Z, and the upper pressing means 112 includes upper suction means acting on both upper side surfaces of the body of the bag Z. Is included. The lower suction means includes suction pads 170 and 172 provided on the facing surfaces of the lower pressing plate members 114 and 116. The upper suction means includes suction pads 174 and 176 provided on the facing surfaces of the upper pressing plate members 122 and 124. Each suction pad 170 to 176 is on one end side (sides facing each other)
It is composed of a container-shaped member having an opening, and has a substantially rectangular shape when viewed from the front-rear direction. At least the opening peripheral edge of each of the suction pads 170 to 176 is composed of a seal member made of synthetic rubber or synthetic resin. Each suction pad 170-1
76 is connected to a vacuum pump, which is a suction source, through a pipe means including a flexible pipe member 178 (neither is shown). Note that the suction pads 170 and 172 are configured such that their pipes and the like are suctioned independently of the suction pads 174 and 176 at the same time.
The pipes and the like of the suction pads 176 and 176 are configured to be sucked simultaneously and independently of the suction pads 170 and 172.

When the bag Z is held by the pressing action of the lower pressing plate members 114 and 116 and the upper pressing plate members 122 and 124, the suction pads 170 and 172 or the suction pad 174 are used when the powder is sucked and discharged.
And 176 are suction-operated by a vacuum pump, so that suction pads 170 and 172 and suction pads 174 and 1
Even if the powder does not exist in the portion of the bag Z corresponding to 76, the bag Z can be held without breaking the shape of the bag Z. As a result, the powder is smoothly sucked and discharged. It is needless to say that the lower pressing means 110 and the upper pressing means 112 shown in FIGS. 8 and 9 can also perform the same press-molding action as described above.

On the movable carriage 66, a diaphragm member 180
Are supported via a plurality of coil springs 182 which are elastic supporting means. The diaphragm member 180 is formed of a rectangular plate member, and the upper surface thereof is positioned on the bottom portion of the bag Z with a space. The upper surface of the diaphragm member 180 may be positioned so as to contact the bottom of the bag Z. The vibrator 140 is attached to the lower surface of the diaphragm member 180.

The vibrating plate member 180 is vibrated in random directions including up, down, left and right by the operation of the vibrator 140, and the bottom of the bag Z is also randomly vibrated accordingly. As a result, the fluidization of the powder in the bag Z is more effectively promoted, so that the suction and discharge of the powder are performed more smoothly, the suction efficiency of the powder is further improved, and the remaining amount of the powder is reduced. Is further reduced. The vibrator 140 is operated appropriately or intermittently according to the powder suction state.

Although the embodiment of the powder fluidizing apparatus in the bag according to the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the present invention. Can be modified or modified. For example, each of the air cylinders used in the above-described embodiment is a hydraulic cylinder.

[0062]

According to the powder fluidizing device in the bag constructed according to the present invention, when the powder in the bag is sucked and discharged, the fluidization of the powder is promoted to suck and discharge the powder. By performing smoothly and reliably, the suction efficiency is improved and the remaining amount of powder is reduced.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a powder extracting device in a bag provided with an embodiment of a powder fluidizing device in a bag configured according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a top view schematically showing only a part of FIG.

5 is a schematic front view of a powder fluidizing device in a bag according to the present invention, which is provided in the powder extracting device in a bag shown in FIG.

FIG. 6 is a schematic front view showing one operation mode of the present invention.

FIG. 7 is a schematic front view showing another operation mode of the present invention.

FIG. 8 is a schematic front view showing another embodiment of the powder fluidizing device in the bag.

FIG. 9 is a partial view of FIG. 8 seen from above.

[Explanation of symbols]

 2 powder removing device 10a and 12a rack 14 lower moving trolley 18 auxiliary moving trolley 20 bag lifting means 26 supporting plate 28 upper moving trolley 32 auxiliary moving trolley 40 clamping means 42 clamping plate 50 cutting means 66 moving trolley 70 powder Suction means 78 Powder suction pipe 100 Powder fluidizing device in bag 110 Lower pressing means 112 Upper pressing means 114, 116 Lower pressing plate member 122, 124 Upper pressing plate member 118, 120, 126, 128 Air cylinder 130 Support base 140 Vibrator 170, 172, 174, 176 Suction pad 180 Vibrating plate member 182 Coil spring Z bag

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ichiro Fukui 3-38-11 Hongo, Bunkyo-ku, Tokyo Tokuju Kosakusho Co., Ltd. (72) Inventor Tsunemi Hayashi 632 Higashishiji, Numazu City, Shizuoka Akamu Engineer Ring Co., Ltd. (72) Inventor Mamoru Asada, 632, Ashimu Engineer Ring Co., Ltd., Higashishiji, Numazu City, Shizuoka Prefecture (72) Innobu Son Ogawa, 632, Akatake Engineer Ring Co., Ltd., Higashishiji Road, Numazu City, Shizuoka Prefecture

Claims (4)

[Claims] 1. A bag filled with powder except for an upper end portion having a cutting opening, a bag holding means for holding the bag with the cutting opening facing upward, and a bottom portion of the bag vibrating. And a vibration imparting means disposed below the bottom portion of the bag. 2. The bag holding means includes lower pressing means for pressing both lower side surfaces of a body portion of the bag, and upper pressing means for pressing upper both side surfaces above the lower both side surfaces. The lower pressing means includes a pair of lower pressing plate members positioned to face the lower both side surfaces, and a moving means for moving each of the lower pressing plate members toward and away from each other. The upper pressing means includes a pair of upper pressing plate members positioned to face both upper side surfaces of the upper pressing member, and moving means for moving each of the upper pressing plate members in a direction of approaching and separating from each other. The powder fluidization device in the bag according to 1. 3. The lower pressing means includes lower suction means acting on both lower side surfaces of the bag, and the upper pressing means comprises:
2. The powder fluidizing device in a bag according to claim 1, further comprising upper suction means acting on both upper side surfaces of the bag. 4. The vibration applying means includes a vibrating plate member supported on a stationary body via elastic supporting means, and a vibrator mounted on a lower surface of the vibrating plate member, and an upper surface of the vibrating plate member. The powder fluidizer in a bag according to claim 1, wherein is positioned facing the bottom of the bag.