JPH07215317A - Apparatus for tightening input port of flexible container bag - Google Patents

Abstract

PURPOSE:To make a loop connecting part of a tightening band properly approach an outer periphery of a tightening part by checking the movement of a tightening arm at the start of tightening operation and, on the other hand, releasing movement checking action during tightening operation. CONSTITUTION:A tightening band 83 has a head part 83a held by a head holding part 132 and a circuital part 83c guided by guide grooves 123a, 122a of a rotary finger 123 and stationary finger 122 to be formed into a substantially looped shape. Then, a band pulling mechanism 137 is operated, and a tightening roller 138 is brought into pressure contact with a tightening roller 139 and rotated. Then, the rotation checking action of a tightening arm 121 is released, and the arm 121 becomes rotatable in a direction in which a force is applied. Then, the rotary finger 123 is moved to a tightening position. By this method, the top end of the circuital part 83c of the tightening band 83 penetrates through an insert hole 83b of the head part 83a and further passes through a band drawing passage 136. Thus, the circuital part 83c is pulled by the tightening rollers 138, 139, and an input port 11b of a flexible container is tightened by the band 83.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible container bag which is used in an automatic filling device for filling a flexible container bag with powder and granules and fastens and closes an input port of the flexible container bag filled with contents. The present invention relates to an inlet fastening device.

[0002]

2. Description of the Related Art Conventionally, a flexible container bag (hereinafter abbreviated as "FIBC") has been used to store powders of chemicals and the like. The filling of the above-mentioned powdery or granular material into this flexible container is carried out by an automatic filling device as disclosed in JP-A-5-32232. In the flexible container, the charging port for the powder or granules has a smaller diameter than the bag body, and in the automatic filling device, after charging the powder or granular material into the bag body, the charging port is on one surface. It is fastened by a surface fastener having a large number of loops and having a large number of hooks for hooking the loops on the other surface. This fastening operation is performed in a state where the input port is fixed by the base. It should be noted that the fastening of the above-mentioned input port has been conventionally performed by a manual operation in which an operator ties the input port with a string, but this method is difficult to adopt because it imposes a heavy burden on the work.

On the other hand, when attention is paid to the fastening property when the above-mentioned input port of the flexible container is automatically fastened, the fastening band is arranged in a loop around the above-mentioned input port rather than being fastened by the surface fastener as described above. Then, the other end side of the fastening band is passed through, for example, an annular loop connecting portion provided on one end side of the fastening band, the other end side is pulled to reduce the loop, and the input port is fastened. The method can tighten the input port tightly and surely. In other words, this method has better fastening performance,
It is possible to favorably store the powder or granules that are not susceptible to contact with air or infiltration of water.

As such a fastening device, a PP (polypropylene) band is used, and the other end side of the PP band is passed through a fastening piece (loop connecting portion) provided on one end side of the PP band. One in which the end side is pulled and fastened with respect to the fastening piece, or JP-A-4-102521.
As disclosed in Japanese Patent Laid-Open Publication No. 2000-242242, it is known that one end has an annular loop connecting portion, the other end is passed through the loop connecting portion, and the other end is pulled and fastened. here,
In order to satisfactorily perform the fastening with the above fastening method, it is necessary to fix the loop connecting portion to the other end side which is pulled at the time of fastening. The latter is a so-called Insulok system using a band made of nylon, for example.
Further, the former includes a type in which a PP band is heat-sealed without using a fastening piece.

[0005]

However, in the above-mentioned fastening method, when the loop connecting portion of the fastening band is placed in a fixed state for fastening, the diameter of the fastening portion at the flexible container insertion port becomes small due to the fastening operation. Therefore, when this fastening portion is squeezed into a circular shape to be fastened, a large gap is generated between the outer peripheral portion of the fastening portion and the loop connecting portion. That is, the loop length of the fastened fastening band is considerably longer than the circumference of the fastening portion of the charging port. For this reason, there is a possibility that the flexible container may not be properly fastened.

In order to prevent such a situation,
Calculate the diameter after the fastening of the fastening part at the flexible container input port,
As a result, it is conceivable that the loop connecting part of the fastening band will follow the outer peripheral part of the fastening part after fastening, but for this purpose, highly accurate position control of the fastening arm holding the loop connecting part is required. Therefore, there is a problem in that the configuration becomes complicated.

It is also possible to allow the length of the charging port to have a margin in order to absorb the positional deviation between the fastening part of the charging port and the loop connecting part, but in this case, inside the flexible container. This method cannot be adopted because an unnecessary air layer is generated above the filled powder and granules, which easily causes deterioration of the powder and granules.

[0008]

In order to solve the above-mentioned problems, an insertion port fastening device for a flexible container bag according to a first aspect of the present invention has a loop forming guide portion provided at a front end portion of a fastening arm. A fastening band having a loop connecting portion is guided in a loop shape, and the other end side of the fastening band is fed so as to reduce the diameter of the loop with respect to the loop connecting portion held at a predetermined position of the fastening arm, By connecting the other end portion side to the loop connecting portion, the flexible container bag which is arranged in the loop and whose opening end is fixed to the inlet fixing member is fastened to the inlet of the flexible container bag. In the loading port fastening device, from the fastening start position close to the loading port of the flexible container bag when the fastening arm starts the fastening operation. Movably provided to the inlet direction,
The present invention is characterized in that a movement blocking releasing means is provided for blocking the movement of the fastening arm arranged at the fastening start position and canceling the movement blocking operation during the fastening operation.

A flexible container bag loading port fastening device according to a second aspect of the present invention is the flexible container bag loading port fastening device according to the first aspect, wherein the loading port fixing member and the flexible container bag are relative to each other. It is characterized in that it is provided with a twisting means for twisting an inlet to form a twisted portion in the inlet by rotating the twisting portion to the above, and the twisted portion is fastened by the fastening band.

According to the third aspect of the present invention, there is provided a flexible container bag loading port fastening device, wherein a loop forming guide portion provided at a front end portion of a fastening arm causes a fastening band having a loop connecting portion to form a loop shape. The other end side of the fastening band is guided so as to narrow the diameter of the loop with respect to the loop connecting part held at a predetermined position of the fastening arm, and the other end side is connected to the loop connecting part. Thus, in the flexible container bag loading port fastening device in which the loading port of the flexible container bag, which is arranged in the loop and whose opening end is fixed to the loading port fixing member, is fastened, the fastening arm performs the fastening operation. It is rotatably installed from the fastening start position close to the opening of the flexible container bag when starting Is a position where the center of the inlet is displaced with respect to an imaginary line connecting the rotation center of the fastening arm and the holding position of the loop connecting portion, and prevents rotation of the fastening arm arranged at the fastening start position. On the other hand, it is characterized in that it is provided with a rotation block releasing means for releasing the rotation block operation during the fastening operation.

A flexible container bag loading port fastening device according to a fourth aspect of the present invention is the flexible container bag loading port fastening device according to the third aspect, wherein the fastening arm has a radius in the rotation from the fastening start position. A forward blocking release means for blocking the forward movement of the fastening arm arranged at the fastening start position and for releasing the forward blocking operation during the fastening operation by the fastening band. It has a feature.

[0012]

According to the structure of claim 1, during the fastening operation,
The fastening arm is arranged in advance at a fastening start position close to the insertion port of the flexible container bag. At this time, the movement of the fastening arm from this position is blocked by the movement blocking releasing means. After that, the fastening operation is started in a state where the movement blocking operation by the movement blocking releasing means is released.

That is, the fastening band is guided by the loop forming guide portion of the fastening arm to form a loop shape so that the opening end surrounds the loading port of the flexible container bag fixed by the loading port fixing member. Next, the other end side of the fastening band held at a predetermined position of the fastening arm is fed so as to reduce the diameter of the loop, and the other end side is coupled to the loop coupling part. Thus, the above-mentioned input port is fastened.

At this time, since the movement preventing operation is canceled by the movement preventing releasing means, the fastening arm loop-connects the fastening band by the pulling force generated by the feeding operation for narrowing the diameter of the loop in the fastening band. The part moves toward the center of the input port.

By such an operation of the fastening arm, the loop connecting portion of the fastening band can be appropriately brought close to the outer peripheral portion of the fastening portion even if the diameter of the fastening portion of the insertion port is reduced by the fastening operation. You can Therefore, it is possible to shorten the loop length of the fastening band which is looped and is fastened by narrowing the diameter of the input port, and the input port can be satisfactorily fastened. Further, it is possible to prevent an extra air layer from being generated in the flexible container bag. Further, it is not necessary to perform highly accurate position control for arranging the loop connecting portion of the fastening band on the outer peripheral portion of the fastening portion after fastening at the insertion port, and a configuration for performing complicated control is unnecessary.

According to the second aspect of the present invention, in the fastening operation, the insertion port fixing member and the flexible container bag are relatively rotated to form a twisted portion at the insertion port, and the twisted portion is formed. The parts are fastened by the fastening band. In this case, although the twisting portion improves the sealing property of the flexible container bag and the diameter of the fastening portion can be kept small, the flexibility of the fastening portion is reduced and the fastening portion can be secured at the time of fastening. Since it hardly moves, the effect of the positional deviation between the fastening portion and the loop connecting portion at the time of fastening becomes significant. Therefore, in a configuration in which a twisted portion is formed in the input port and the twisted portion is fastened, it is preferable to apply a configuration in which the loop connecting portion is moved toward the fastening portion in the load port by moving the fastening arm. The fastening operation becomes possible.

According to the third aspect of the present invention, when the rotation blocking operation for the fastening arm by the rotation blocking releasing means is released during the fastening operation, the fastening arm causes the diameter of the loop in the fastening band to change. The pulling force generated by the squeezing feed operation causes the loop connecting portion of the fastening band to rotate in a direction approaching the fastening portion of the input port. Therefore, as in the case of the structure according to claim 1, the loop length of the fastening band which is looped and fastened by narrowing the diameter of the charging port can be shortened, and the charging port can be satisfactorily fastened. Further, it is possible to prevent an extra air layer from being generated in the flexible container bag, and it is not necessary to perform highly accurate position control of the fastening band with respect to the loop connecting portion.

According to the structure of claim 4, during the fastening operation, the rotation blocking releasing means performs the rotation blocking operation with respect to the fastening arm and the advance blocking releasing means performs the advance blocking operation with respect to the fastening arm. When released, the fastening arm rotates in the direction in which the loop connecting portion of the fastening band approaches the insertion port and in the radial direction of this rotation due to the tensile force generated by the feeding operation that narrows the diameter of the loop in the fastening band. Move by the advance operation of. Therefore, the loop connecting portion of the fastening band can be moved to a more appropriate position, and thereby the insertion port of the flexible container bag can be more favorably fastened.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The inlet fastening device for the flexible container bag of this embodiment is provided in the automatic filling device shown in FIG. This automatic filling device includes an empty bag mounting unit 1, an empty bag stock unit 2, an empty bag transfer unit 3, a filling unit 4, a fastening unit 5, a bag unloading unit 6, and a lifting device transfer unit 7.

In the empty bag mounting section 1 described above, an empty flexible container bag (hereinafter abbreviated as flexible container) 11
However, as shown in the empty bag transfer section 3 of FIG. 13A, the hanging tool 12 is hung from the hanging tool 12 as a loading port fixing member shown in FIGS. 14 and 15.

The hoisting tool 12 is composed of a hoisting tool body 13 shown in FIGS. 14 and 15 and a pair of left and right clamp devices 14, 14.
It has and. The suspender main body 13 has a flat plate portion 13a, an upper tubular portion 13b whose upper portion is widened, a middle tubular portion 13c having a uniform diameter in the vertical direction, and a lower tubular portion 13d whose lower portion is widened from the upper portion to the lower portion. . The flat plate portion 13a has an upper cylindrical portion 13b.
An opening communicating with the upper cylindrical portion 13 is formed in the opening.
The upper end of b is connected. On the outer peripheral surface of the middle tubular portion 13c, the seat plate 1 is provided at a position where the mounting portion 14a of the clamp device 14 is mounted and a position facing the pressing member 14f.
3e is provided.

The pair of clamp devices 14 and 14 are provided at positions facing each other on the outer peripheral surface of the middle tubular portion 13c. The clamp device 14 is a mounting portion 14a to the lifting body 13, a working member 14b that is connected to the mounting portion 14a and extends in the vertical direction, and an operating lever that is connected to the mounting portion 14a and extends in the radial direction of the lifting body 13. 1
4c, a connecting member 14d for connecting the operating member 14b and the operating lever 14c, a supporting member 14e provided on the operating member 14b and extending along the outer peripheral surface of the middle tubular portion 13c, and provided on both ends of the supporting member 14e. The middle tube portion 13
Two pressing members 14f and 14f facing the outer peripheral surface of c are provided. The clamp device 1 on the right side in FIG.
4 is one side of the support member 14e, and the holding member 14 on that side.
f and the seat plate 13e facing this are removed and shown. Then, in this clamp device 14, as shown by the chain double-dashed line in FIG. 15, when the operating lever 14c is pulled upward, the pressing member 14f separates from the seat plate 13e, and thereby the middle tubular portion 13c of the lifting body 13 is moved. The insertion port 11a of the flexible container 11 can be attached. The diameter of the charging port 11a is smaller than that of the flexible container body below the charging port 11a. On the other hand, when the operation lever 14c is pushed down from the state shown by the two-dot chain line to the state shown by the solid line, the holding member 14f is pressed against the seat plate 13e through the insertion port 11a of the flexible container 11, and the flexible container 11 is fixed to the hanging body 13. To be done.

The operation of pushing down the operation lever 14c is as follows.
It is performed by the cylinders 15 and 15 shown in FIG. An operating member 16 is provided on the rod portion 15a of the cylinder 15, and the operating member 16 contacts the raised operating lever 14c and pushes down the operating lever 14c as the rod portion 15a advances. It has become. The operation of the cylinder 15 is performed by an operator operating a foot switch (not shown). The cylinders 15 and 15 are driven by the elevator 18 shown in FIG. 12, and when the suspending tool 12 is carried into the empty bag mounting portion 1, as shown in FIG.
1 to the operable position shown in FIG.
It is designed to rise to the retracted position when it is unloaded from the.

In the empty bag mounting section 1, the above-mentioned hanging tool 12 is held and conveyed by the chain conveyor 17 shown in FIG.

The empty bag stocking unit 2 is a place for stocking the empty flexible container 11 mounted on the hanger 12 in the empty bag mounting unit 1. The transport of the hanging tool 12 in the empty bag stock unit 2 is performed by the chain conveyor 17.

As shown in FIGS. 16 and 17, the empty bag transfer unit 3 has a rectangular frame frame 21 extending from the empty bag stock unit 2 to the filling unit 4, a carriage 22 provided on the frame frame 21, and this carriage. 22 to mount frame 21
It is provided with a rodless cylinder 23 that is driven inside.

The dolly 22 has four rollers 24 ...
, And these rollers 24 are provided on the frame of the gantry frame 21 which is parallel and substantially L-shaped. As a result, the carriage 22 is movable in the longitudinal direction of the gantry frame 21. A chain conveyor 17 is provided below the carriage 22 at the same height as and parallel to the chain conveyor 17 of the empty bag stock unit 2.
The chain conveyor 17 can transfer the hanging tool 12 between the empty bag stock section 2 and the chain conveyor 17 of the filling section 4. This chain conveyor 17
18 is a sectional view taken along the line AA in FIG. 16 and shows two sprockets 25, 25 on each side, a chain 26 hung on these sprockets 25, 25, and a motor for driving the sprocket 25. It consists of 27.

In the rodless cylinder 23, a sliding portion 23b is fitted to the cylinder body portion 23a from the outside, and the sliding portion 23b is connected to the cylinder body portion 23a from one end side and the other end side. It slides according to the supply of air. One end and the other end of the cylinder body 23a are supported by support members 28, 28 provided on the one end side and the other end side of the gantry frame 21, respectively.
The sliding portion 23b is connected to the carriage 22. Therefore, when the sliding portion 23b is driven, the carriage 22 is moved to the corresponding positions of the empty bag stock portion 2 and the filling portion 4, that is, the hanger 1
Move to position 2 for delivery.

The filling section 4 is, as shown in FIG.
The FIBC 11 that receives the FIBC 11 that has been carried in by the chain conveyor 17 from the empty bag transfer section 3 and unloads the filled FIBC 11 ′ to the fastening section 5, the elevator 32 that raises and lowers the unloading conveyor 31, and the FIBC 11. A filling device 33 for filling the powder and granules, and a chain conveyor 17 for conveying the suspending tool 12 are provided.

The elevator 32 lowers the carry-out conveyor 31 when the flexible container 11 is loaded into the filling section 4, and raises it when the flexible container 11 is filled with the granular material by the filling device 33. The filling device 33 is provided with a hopper 34 for accommodating the powder or granules to be filled in the flexible container 11, and a charging nozzle 3 for charging the powder or granular material supplied from the hopper 34 into the flexible container 11.
5, a blower 36 that supplies air to the charging nozzle 35, and a shutter valve 37 that opens and closes the powder passage from the hopper 34 to the charging nozzle 35.

As shown in FIG. 13 (b), the charging nozzle 35 has a double structure having an outer cylinder 35a and an inner cylinder 35b, and the inside of the inner cylinder 35b serves as a granular material passage 35c.
An air passage 35d is formed between the inner cylinder 35b and the outer cylinder 35a. The blower 36 is connected to the air passage 35d by a pipe 36a as shown in FIG. An annular seal member 38 made of, for example, rubber is provided on the outer peripheral portion of the lower portion of the outer cylinder 35a. The seal member 38 is supplied with compressed air from a compressed air supply means (not shown) when the charging nozzle 35 is inserted into the charging port 11a of the flexible container 11 through the inside of the hanger 12, as shown in FIG. It swells to seal the space between the charging port 11a and the charging nozzle 35.

The fastening portion 5 is, as shown in FIG.
Rotate the carry-out conveyor 41 and the carry-out conveyor 41 that receive the filled flexible container 11 ′ that has been carried in by the carry-out conveyor 31 from the filling unit 4 and carry out the flexible container 11 ′ having the fastened inlet into the bag carry-out unit 6. A rotating machine 42 as a loading means for twisting the loading opening, an elevator 43 for moving up and down the carry-out conveyor 41, a loading opening fastening device 44 for fastening the loading opening 11a of the flexible container 11 ', and a hanging device provided on the fastening part 5 and clamped by the clamping device 14. The clamp release device 45 shown in FIGS. 21 and 22 for releasing the attachment state of the flexible container 11 ′ to the tool 12 and the chain conveyor 17 for carrying the hanging tool 12 are provided.

The rotary machine 42 is shown in FIG. 19 and FIG.
As shown in FIG. 20, which is a sectional view taken along the line BB in FIG. 9, the turntable 46 is supported by the rotation shaft 47,
The rotating shaft 47 is erected on the base plate 48. In the turntable 46, the power of the motor 49 is the speed reducer 50, and the sprocket 5 provided on the speed reducer 50.
1, the sprocket 52 provided on the rotary shaft 47, and the chain 53 hung on the both sprockets 51, 52 are transmitted to the rotary shaft 47 to rotate. The turntable 46 is also rotatably supported by four support rollers 54 provided on the base plate 48.

A cylindrical portion 55 is provided on the lower surface of the turntable 46.
And a cylindrical portion 56 having a diameter smaller than that of the cylindrical portion 55 is provided on the upper surface of the base plate 48. These cylindrical portions 55 and 56 are concentric with the rotating shaft 47, and the lower end portion of the cylindrical portion 55 extends below the upper end portion of the cylindrical portion 56. On the outer peripheral surface of the cylindrical portion 55, at the same height position separated by 180 °, the switch driving portions 57.5 protruding in the radial direction are provided.
7 is provided, and these switch drive units 57.
A switch driving unit 58 is provided at a height position different from that of 57 by 90 °. The switch driving unit 57 57 turns ON / OFF the limit switch 59.
The switch drive unit 58 turns the limit switch 60 on and off. The rotation of the turntable 46 is controlled based on the rotation angle detected by turning on / off the limit switches 59 and 60.

As shown in FIGS. 1 to 3, the insertion port fastening device 44 has a base plate 6 near the central portion in the vertical direction.
1 and the base plate 61 is fixed on the base gear 62. The base gear 62 is rotatably supported by the column 63. The base gear 62 meshes with a drive gear 64, and the drive gear 64 is driven by a base gear drive motor 65. The base gear drive motor 65 includes a bracket 6 attached to the column 63.
Supported by 6. Therefore, the base gear 62
The upper part from is driven by the base gear drive motor 65 and rotates between approximately 90 ° between the fastening operation position shown by the solid line in FIG. 1 and the retracted position shown by the two-dot chain line. The arrival at the fastening operation position by this rotation is detected by the limit switch 67 shown in FIG. 2, and the arrival at the retracted position is detected by the limit switch 68. Further, the stopped state of the base plate 61 at each of the above-mentioned positions is held by an air cylinder 69 as a movement prevention releasing means and a rotation prevention releasing means provided below the base gear 62. In the air cylinder 69, the brake pad 80 provided on the rod portion is brought into pressure contact with the base gear 62, and
It prevents the rotation of 2.

An advance / retreat plate 70 is provided above the base plate 61. As shown in FIG. 3, a pair of parallel slide rails 71, 71 are provided on the lower surface of the advancing / retreating plate 70.
71 is slid by being guided by a pair of rail guides 72, 72 provided on the base plate 61. A ball screw 73 extending parallel to the slide rail 71 is provided between the advancing / retreating plate 70 and the base plate 61. The ball screw 73 is attached to the advancing / retreating plate 70.
The advancing / retreating piece 74 connected to is screwed. A gear 75 is provided at one end, which is the rear end of the ball screw 73, and the gear 75 meshes with a drive gear 76. The drive gear 76 is driven by an advancing / retreating plate drive motor 77 shown in FIG. Therefore, the reciprocating plate 7
0 is driven by the advancing / retreating plate drive motor 77 to advance / retreat to an advancing position and a retracting position as a fastening start position. The arrival at the retracted position by this operation is detected by the position detection plate 78 provided on the lower surface of the advancing / retreating plate 70 shown in FIG. 3 and the proximity sensor 79 provided on the base plate 61 and detecting the position detecting plate 78. It The arrival at the advance position is detected by the position detection plate 78 and a proximity sensor (not shown) provided in front of the proximity sensor 79.

An upper surface plate 81 is provided at one corner in the rear of the advancing / retreating plate 70. At the edge of the upper plate 81, the fastening band cartridge 8
2 is installed. This fastening band cartridge 82
In Fig. 4 (a) and C- in Fig. 4 (a).
As shown in the same figure (b) which is a sectional view taken along the line C, a nylon fastening band 83 has a head portion 8 as a loop connecting portion.
3a are arranged in one direction and housed in a state of being stacked in a line. That is, this fastening band cartridge 82
Is a fastening band 83 that is commercially available in a unit of 50 pieces or 100 pieces in a state of being individually divided as described above.

As shown in FIG. 5, the fastening band 83 is provided with a head portion 83a having an insertion hole 83b at one end of a cord-shaped winding portion 83c, and as shown by a chain double-dashed line in FIG. The end of the revolving part 83c is passed through the insertion hole 83b, and this end is pulled to fasten the inner part of the revolving part 83c in a narrowed state. The fastening band cartridge 82 is mounted on the upper plate 81 in a positional relationship in which the head portion 83a of the fastening band 83 shown in FIG. 4B is located on the advancing direction side of the advancing / retreating plate 70.

The fastening band 83 is taken out from the fastening band cartridge 82 by dropping. This take-out state is detected by the optical band sensor 84 shown in FIG. Further, the fastening band 83 dropped from the fastening band cartridge 82 is the band receiver 8 shown in FIG.
Received by 5. The band receiver 85 is driven by a receiver drive cylinder 86.

As shown in FIGS. 1 and 6, a band supply disk 87 is rotatably provided in the advancing direction of the receiver driving cylinder 86. The band supply disk 87 is driven to rotate by a pinion gear 88 provided on the lower surface of the band supply disk 87, a rack gear 89 meshing with the pinion gear 88, and an air cylinder 90 that linearly drives the rack gear 89.

As shown in FIGS. 6 and 7, the head portion 83 of the fastening band 83 is provided on the outer peripheral portion of the band supply disk 87.
An engaging recess 87a that can be engaged with a is formed. The band supply disk 87 is provided in a circular opening formed in the upper plate 81, and an arcuate gap between the inner peripheral surface of this opening and the outer peripheral surface of the band supply disk 87 is fastened. It serves as the first supply path 91 of the band 83. The upper surface side of the first supply path 91 is closed by a lid (not shown) provided on the upper surface plate 81. The fastening band 83 held by the band receiver 85 engages with the engaging recess 87a of the band supply disc 87 arranged at a position facing the band receiver 85 by the advancing operation of the band receiver 85. .

A switching gate 92 is provided movably in the vertical direction at a position in the first supply path 91 which is rotated approximately 90 ° clockwise from the position of the fastening band cartridge 82. This switching gate 92 is shown in FIG.
As shown in (b), a curved portion 9 having a shape along the band supply disc 87 is provided at a portion facing the band supply disc 87.
2c and a first guide path 92a and a second guide path 92b in the vertical direction. First guideway 92a
Has a guide surface that matches the outer peripheral surface of the first supply passage 91,
The fastening band 83 is guided toward the first supply path 91. The second guide passage 92b has a guide surface extending in the tangential direction of the first supply passage 91, and guides the fastening band 83 in the second supply passage 93 direction shown in FIGS. 1 and 6. The first guide path 92a and the second guide path 92b are respectively the first
The gate drive cylinder 94 shown in FIG. 2 provided below the switching gate 92 vertically moves the switching gate 92 to a position communicating with the supply passage 91.

Further, in the first supply passage 91, as shown in FIG. 6, the air nozzle is provided at a position opposite to the second supply passage 93 side in the tangential direction passing through the second guide passage 92b of the switching gate 92. 95 is provided. The air nozzle 95 is for blowing the fastening band 83 located in the second guide path 92b toward the second supply path 93 by compressed air supplied from a compressed air supply source (not shown).

As shown in FIG. 1, the second supply passage 93 is bent from the position of the switching gate 92 by approximately 90 ° and then extends to the vicinity of the tip of the fastening arm 121. The fastening arm 121 is branched at the terminal end of the second supply path 93, and one of the branched portions is a fixed finger 122 as a loop forming guide that extends laterally and is curved forward. The other of the branch portions further extends forward, and a pivot finger 123, which is curved toward the fixed finger 122 and serves as a loop forming guide portion, is attached to the front end portion by a support shaft 124. Guide grooves 122a and 123a for guiding the circumferential portion 83c of the fastening band 83 are formed in the fixed finger 122 and the rotary finger 123 along the curved inner circumference. The guide groove 122a of the fixed finger 122 reaches the position of the almost end portion of the second supply passage 93.

On the side of the fixed finger 122 of the fastening arm 121 with respect to the second supply path 93, the arm portion supply mechanism 125 is provided.
Is provided. The arm supply mechanism 125 is provided with the sprocket 1 provided near the end of the second supply path 93.
26, advancing and retracting plate 7 near the rear end of the fastening arm 121
0 includes a sprocket 127, a motor 128 for rotating the sprocket 127 that can rotate in the forward and reverse directions, a timing belt 129 hung between the sprockets 126 and 127, and a pusher 130 shown in FIG. The pusher 130 is attached to the timing belt 129, moves with the timing belt 129, and pushes the head portion of the fastening band 83 at the tip end thereof, thereby
It is for transporting. The pusher 130 is
The motor 128 reciprocates by the forward and reverse rotations. Also, the second
As shown in FIG. 1, a band sensor 131 similar to the band sensor 84 is provided at a position upstream of the sprocket 127 in the supply path 93.

At the end of the second supply path 93, as shown in FIG. 10, the pusher 13 of the arm supply mechanism 125 is used.
A head holding portion 132 is formed in which the head portion 83a of the fastening band 83 conveyed by 0 is engaged and held. Further, as shown in FIG. 1, the rotating finger 123 is connected to the rod portion 133 a of the first fastening cylinder 133. The rear end of the second fastening cylinder 134 is connected to the rear end of the first fastening cylinder 133. The rod portion 134 a of the second fastening cylinder 134 is rotatably connected to the advancing / retreating plate 70 via a bracket 135.

In the second fastening cylinder 134, the amount of advance / retreat of the rod portion 134a is smaller than that of the first fastening cylinder 133. Then, the rotary finger 123 is
When the rod portion 133a of the first fastening cylinder 133 advances, it rotates in the direction of the fixed finger 122, and moves to the first fastening position where the tip portion contacts the tip portion of the fixed finger 122, as shown in FIG. . When the rod portion 134a of the second fastening cylinder 134 advances in this state, the rotary finger 123 further rotates in the same direction as shown in FIG. 11, and the annular portion formed by the rotary finger 123 and the fixed finger 122 is formed. The inner diameter of is moved to the second fastening position where it is smaller than that in the first fastening position. In both of the above states, the guide groove 12 of the rotary finger 123 is
3a communicates with the guide groove 122a of the fixed finger 122.

As shown in FIG. 10, a band lead-out passage 136 is formed on the side of the head holding section 132 opposite to the side of the fixed finger 122. A band pulling mechanism 137 is provided in the band drawing passage 136. The band pulling mechanism 137 includes a fastening roller 138 provided at a position on the turning finger 123 side with respect to the band drawing passage 136, a fastening roller 139 provided on the opposite side of the band drawing passage 136 from the fastening roller 138 side, and FIG. The timing pulley 140 provided on the advancing / retreating plate 70, the timing belt 141 hung between the fastening roller 139 and the timing pulley 140, and the motor 14 driving the timing pulley 140.
2 and a third fastening cylinder 143 for moving the fastening roller 138 forward and backward in the direction of the fastening roller 139.

As shown in FIG. 10, the fastening roller 138 is a sliding plate 1 which can move back and forth in the direction of the fastening roller 139.
44, and the rod portion 143a of the third fastening cylinder 143 is connected to the sliding plate 145.
A spring 146 is arranged between 44 and 145. Therefore,
When the rod portion 143a of the third fastening cylinder 143 retracts, the sliding plate 145 moves accordingly, and the sliding plate 144, that is, the fastening roller 138 is pushed by the spring 146, and
As shown in FIG. 1, it moves toward the fastening roller 139. Therefore, in this state, when the motor 142 rotates,
It is sandwiched between the moving timing belt 141 and the fastening roller 138, and the circumscribing portion 83c of the fastening band 83 in the band withdrawing passage 136 is pulled out.

As shown in FIGS. 21 and 22, the clamp releasing device 45 is attached to the stopper 101 provided on the upper portion of the fastening portion 5. This stopper 101
Is for restricting the movement of the hanger 12, that is, the flexible container 11 ′ in the fastening portion 5, and for holding it at a predetermined position,
A pair of suspending tools 12 are arranged in parallel in the transport direction of the chain conveyor 17.

Each stopper 101 is a chain conveyor 1.
7 extends in a direction orthogonal to the conveying direction by 7 and is provided above the chain conveyor 17 and
The frame portion 102 supporting 7 etc., the shaft portion 1 at both ends
01a and 101a are rotatably supported via bearings 103 and 103. A rod portion of an air cylinder 104 supported by a gantry frame 102 is connected to one shaft portion 101a of each stopper 101 via an arm 108. By this air cylinder 104, the stopper 101 hangs downward and contacts the suspending tool 12 from both sides, and the stopper 101 moves in a positioning state where the movement of the suspending tool 12 is regulated and in a horizontal state, and allows the suspending tool 12 to move. It is driven to the retracted state.

The clamp releasing device 45 is individually provided on each of the stoppers 101 corresponding to the pair of clamp devices 14 provided on the hanger 12. The clamp releasing device 45 includes an air cylinder 105, a support bar 106, and a lifting lever 107. The air cylinder 105 is
A rod is provided so as to hang down on the surface of the stopper 101 arranged in the positioned state in the central portion in the longitudinal direction on the side opposite to the hanging tool 12 side. The support bar 106 is provided between the air cylinder 105 and the stopper 101 in parallel with the air cylinder 105. Push-up lever 107
Has one end rotatably connected to the rod of the air cylinder 105, the central portion is rotatably supported by the support bar 106, and the tip end thereof is the operating lever 14 of the hanger 12.
It is located below c. Then, the push-up lever 107
When the rod of the air cylinder 105 advances, the tip portion rotates upward around the support portion by the support bar 106 and pushes up the operation lever 14c of the clamp device 14. As a result, the fixed state of the flexible container 11 'by the clamp device 14 is released. Further, when the stopper 101 is in the retracted state, the clamp release device 45 moves to the upper retracted position as shown by the chain double-dashed line in FIG.

As shown in FIG. 13, the bag unloading section 6 is provided with a transfer conveyor 111 for receiving and transferring the FIBC 11 'filled with the powder and granules carried out from the fastening section 5.

The lifting tool transfer section 7 includes a rodless cylinder 23.
And a cart 22 having a chain conveyor 17,
The structure is the same as that of the empty bag transfer unit 3, and the lifting tool 12 from which the flexible container 11 ′ has been removed in the fastening unit 5 is received from the chain conveyor 17 of the fastening unit 5, and the chain conveyor 17
The rodless cylinder 23 conveys the above-mentioned hanging device 12 to the empty bag mounting portion 1.

The operation of the automatic filling device having the above-mentioned structure and including the inlet fastening device 44 of this embodiment will be described below.

First, in the empty bag mounting unit 1 shown in FIG. 12, an operator attaches an empty flexible container 11 to the lifting tool 12 carried in by the chain conveyor 17 from the lifting tool transfer unit 7. At this time, the hanger 12 shown in FIG. 14 and FIG.
The clamp device 14 provided in the is in a released state in which the operation lever 14c is rotated upward. Therefore, the worker holds the flexible container 11 in a state in which the middle cylinder portion 13c of the suspender body 13 is inserted into the insertion port 11a of the flexible container 11, and operates the foot switch in this state. As a result, the rod portion 15a of the cylinder 15 advances and the operating member 16 descends, and the operating lever 14c of each clamp device 14 moves.
Is pressed down, and the pressing member 14f is pressed against the middle tubular portion 13c via the flexible container 11. This allows flexible container 1
The input port 11 a of No. 1 is fixed to the hanger 12.

Flexible container 11 attached to the hanger 12
The hoisting tool 12 is stocked here by being transferred from the chain conveyor 17 of the empty bag mounting unit 1 to the chain conveyor 17 of the empty bag stock unit 2.

Next, the flexible container 11 of the empty bag stock section 2
Are conveyed to the filling section 4 by the empty bag transfer section 3. At this time, the carriage 22 shown in FIGS. 16 and 17 is first arranged by the rodless cylinder 23 at a position where the chain conveyor 17 and the chain conveyor 17 of the empty bag stock unit 2 can be delivered. Next, when the hoisting tool 12 is transferred from the chain conveyor 17 of the empty bag stock unit 2 to the chain conveyor 17 of the carriage 22, the carriage 22 moves to a transferable position between the chain conveyor 17 and the chain conveyor 17 of the filling unit 4. It is driven by the rodless cylinder 23 to move. After that, the lifting tool 12 is the chain conveyor 1 of the carriage 22.
7 is transferred to the chain conveyor 17 of the filling section 4.

The flexible container 11 carried into the filling section 4 has its bottom arranged on the carry-out conveyor 31 in the lowered state. When the flexible container 11 is arranged on the carry-out conveyor 31, it is driven by the elevator 32 to move the carry-out conveyor 31 to a predetermined position and push the bottom of the flexible container 11 to a predetermined position. Further, the charging nozzle 35 of the filling device 33 descends as shown by the chain double-dashed line in FIG.
1 is inserted into the insertion port 11a.

Next, as shown in FIG. 13 (b), air is sent to the seal member 38 provided on the outer cylinder 35a of the charging nozzle 35, and the expanded seal member 38 forms the inner surface of the charging port 11a of the flexible container 11. It is in close contact with the input port 11a and the outer cylinder 35.
It is sealed between a and. Then, the outer cylinder 35a and the inner cylinder 3
Air is sent from the blower 36 into the flexible container 11 through the air passage 35d between the flexible container 11 and 5b, and the flexible container 11 expands.
Next, in this state, the powder particles are supplied from the filling device 33,
The flexible container 11 is filled. At this time, the shutter valve 37
Is opened, and the granular material stored in the hopper 34 falls into the flexible container 11 through the inner cylinder 35b of the charging nozzle 35. In addition, the air in the flexible container 11 is supplied to the air passage 35.
It is discharged through d. When the filling into the flexible container 11 is completed, the shutter valve 37 is closed and then the air inside the sealing member 38 is evacuated, and the charging nozzle 35 is raised to its original position.

Next, the flexible container 11 ', which has been filled with the granular material,
Is carried out of the filling unit 4 by the carry-out conveyor 31,
It is carried into the fastening portion 5 by the carry-out conveyor 41 arranged at the same height as the carry-out conveyor 31. At this time, the suspending tool 12 is transferred from the chain conveyor 17 of the filling section 4 to the chain conveyor 17 of the fastening section 5, and as shown in FIGS.
Positioning is carried out by the stoppers 101 shown in FIG. At the time of this positioning operation, each stopper 101 is driven by the air cylinder 104 to rotate about 90 ° from the retracted position in the horizontal state to the positioning position in the drooping state shown in FIG.
Each comes into contact with the leading edge portion and the trailing edge portion of the lifting tool body 13 in the transport direction.

When the flexible container 11 'is carried into the fastening portion 5 as described above, it is driven by the elevator 43 to be carried out by the carry-out conveyor 4.
After 1 has been slightly raised, it is driven by the rotating machine 42 also shown in FIGS. 19 and 20, and the carry-out conveyor 41 rotates by a predetermined angle. As a result, the insertion port 11a of the flexible container 11 'is twisted, and this portion becomes a twisted portion having a small diameter. Next, the twisted portion is fastened to the fastening band 83 by the loading port fastening device 44.
Be concluded using.

In this closing operation of the inlet, first, the portion above the base gear 62, that is, the advancing / retreating plate 70, is driven by the base gear drive motor 65 shown in FIG.
At about 90 ° from the retracted position indicated by the two-dot chain line to the fastening operation position indicated by the solid line, and the fixed finger 122 and the rotary finger 12 in an opened state with respect to the fixed finger 122.
3 is opposed to the twisted portion of the insertion port 11a of the flexible container 11 '. The arrival of the advancing / retreating plate 70 at the fastening operation position is detected by the limit switch 67. At this time,
The rod portion of the air cylinder 69 advances, the brake pad 80 presses against the base gear 62, and the rotation of the base gear 62, that is, the advancing / retreating plate 70 is blocked.

Next, the advancing / retreating plate drive motor 77 drives the ball screw 73 to rotate, and the advancing / retreating plate 70 advances. After that, when the position detection plate 78 shown in FIG. 3 is detected by a proximity sensor (not shown), the advancing / retreating plate drive motor 77 stops and the advancing / retreating plate 70 is arranged at a predetermined advancing position. As a result, as shown in FIG. 10, the twisted portion 11b of the insertion port 11a of the flexible container 11 'is placed inside the fixed finger 122. At this time, the rotary finger 123 is in an open state as indicated by a chain double-dashed line in FIG.

Next, when the band sensor 84 detects that the fastening band 83 is falling from the band cartridge 82, the receiver driving cylinder 86 is actuated and the fastening band 83 held by the band receiver 85. Head 8
3a is pushed out toward the band supply disc 87. At this time, the band supply disk 87 is arranged such that the engaging recess 87a faces the band receiving member 85,
The head portion 83a of the fastening band 83 is fitted into the engagement recess 87a. Further, the fall of the head portion 83 a of the next fastening band 83 from the fastening band cartridge 82 is prevented by the rear portion of the band receiving member 85.

Next, the switching gate 92 is driven by the gate drive cylinder 94, and the first guide path 92a is arranged at a position communicating with the first supply path 91. After that, the band supply disk 87 is driven by the air cylinder 90 to rotate in the clockwise direction, and the band receiver 85 retracts. Due to the rotation of the band supply disk 87, the fastening band 83 is taken into the first supply path 91 from the head portion 83a, and a shown in FIG.
Move to position.

Next, the switching gate 92 is connected to the second guide path 92.
b is switched to a position communicating with the first supply path 91, and the band supply disk 87 rotates counterclockwise. As a result, the fastening band 83 moves with the head portion 83a behind, and is taken into the second supply passage 93 from the first supply passage 91 through the second guide passage 92b of the switching gate 92. That is, it moves to the b position.

When the movement of the fastening band 83 to the above-mentioned position b is detected by the band sensor 131 shown in FIG. 1, the first fastening cylinder 133 is activated, and as shown by the solid line in FIG. Moves to a first fastening position that forms a loop with the fixed finger 122.

Next, air is jetted from the air nozzle 95 shown in FIG. 6 to blow the fastening band 83 at the b position to the c position shown in FIG. After that, the arm portion supply mechanism 125 operates, and the fastening band 83 at the c position is sent to the d position shown in the figure by the pusher 130. At this d position, the fastening band 83 has the head portion 83a held by the head holding portion 132 at the terminal end portion of the second supply path 93, and the winding portion 8a.
3c is guided by the guide grooves 123a and 122a of the rotary finger 123 and the fixed finger 122, and has a substantially loop shape. In addition, at this time, the motor 128 that drives the pusher 130 maintains the normal rotation torque. The operating time of the motor 128 at this time is the time set by the timer.

Next, the band pulling mechanism 137 is activated. That is, the third fastening cylinder 143 shown in FIG. 1 operates, the fastening roller 138 is brought into pressure contact with the fastening roller 139, and the motor 142 rotates to cause the fastening roller 138.
139 rotates. Next, the air cylinder 69 shown in FIG.
The rotation prevention operation of the base gear 62 due to is released. Accordingly, the advancing / retreating plate 70, that is, the fastening arm 121.
Can rotate about the base gear 62 in a direction in which a force is applied.

Next, the second fastening cylinder 134 is activated,
The rotating finger 123 moves to the second fastening position shown in FIG. As a result, in the fastening band 83, the distal end portion of the circulating portion 83c penetrates the insertion hole 83b of the head portion 83a and further passes through the band withdrawal passage 136. Then, the circulating portion 83c is pulled by the fastening rollers 138 and 139,
Twisted portion 11b of the inlet 11a in the flexible container 11 '
Are fastened by the fastening band 83.

At this time, the twisted portion 11b is shown in FIG.
As shown in, for example, the state shown by the two-dot chain line is narrowed to the state shown by the solid line and fastened. Also, the twisted portion 11
The center O ₁ of b is the center O ₂ of the base gear 62, which is the center of rotation of the fastening arm 121, and the head 83 a of the fastening band 83.
The position is deviated from the line connecting the head holding portion 132, which is the position of. Therefore, the fastening arm 121 rotates to a position where the distance between the head holding portion 132 and the center O ₁ of the twisted portion 11b is the shortest. In the present embodiment, the fastening arm 121 rotates when the fastening arm 121 rotates.
Is regulated in the state of contacting with.

When the fastening of the flexible container 11 ′ by the fastening band 83 is completed, the first fastening cylinder 133 and the second fastening cylinder 134 perform the retreat operation, and the rotary finger 123.
Is opened with respect to the fixed finger 122. Further, the band pulling mechanism 137 stops its operation, and the arm portion supplying mechanism 125 causes the pusher 130 to move to the second position shown in FIG.
The operation is stopped in the state of being withdrawn from the supply path 93.

Next, the advancing / retreating plate drive motor 77 reversely rotates, and the advancing / retreating plate 70 moves to the position detecting plate 78 shown in FIG.
Is retracted to a predetermined retracted position detected by the proximity sensor 79. Thereafter, the advancing / retreating plate 70 is driven by the base gear drive motor 65 and rotates to the retracted position detected by the limit switch 68 shown in FIG.

Upon completion of the operation of fastening the inlet, next,
The attachment state of the flexible container 11 'to the hanger 12 by the clamp device 14 is released. At this time, the clamp release device 4
The air cylinder 105 of No. 5 rotates about 90 ° from the retracted position in the horizontal state shown by the chain double-dashed line in FIG. 22 to the operable position in the hanging state shown by the solid line as the stopper 101 rotates to the above-described positioning state. . Then, the air cylinder 105
The rod portion advances, the push-up lever 107 that rotates upward pushes the operation lever 14c upward, the clamp device 14 is released from the clamp state, and the flexible container 11 'is removed from the hanging tool 12.

Thereafter, the stopper 101 and the clamp releasing device 45 return to their original retracted positions, and
The rotary machine 42 reversely rotates the carry-out conveyor 41 by the amount of the previous rotation for twisting the flexible container 11 '. This is an operation for returning the twist of the wiring or the like.

Next, driven by the elevator 43, the carry-out conveyor 41 descends to the same height position as the carry conveyor 111 of the bag carry-out section 6, and the flexible container 11 'is carried out from the carry-out conveyor 41 to the carry conveyor 111. After that, FIBC 1
1'is transported to a predetermined position by the transport conveyor 111 and stored at that position, or transported to another storage position or the like by a forklift or the like.

On the other hand, the lifting tool 12 from which the flexible container 11 'has been removed performs the same operation as the empty bag transferring section 3 with the lifting tool transfer section 7.
Is conveyed to the empty bag mounting unit 1.

As described above, in the present inlet fastening device 44, the fastening band 83 is used to feed the flexible container 11 ′ into the inlet 11.
When fastening a, the fastening state of the fastening arm 121 is released, and the fastening band 83 held by the head holding portion 132.
The fastening arm 121 is rotated to a position where the distance between the head portion 83a and the center of the input port 11a is the shortest. As a result, even if the diameter of the fastening portion of the input port 11a is reduced by the fastening operation, the head portion 83a of the fastening band 83 can be appropriately brought close to the outer peripheral portion of the fastening portion.
Therefore, it is possible to shorten the loop length of the fastening band 83 that is looped and is fastened by narrowing the diameter of the charging port 11a, satisfactorily fastening the charging port 11a, and extra air in the flexible container 11 '. The formation of layers can also be prevented. Further, it is not necessary to perform highly accurate position control for aligning the head portion 83a of the fastening band 83 with the outer peripheral portion of the fastening portion after fastening in the insertion port 11a, and a configuration for performing complicated control is unnecessary. ing.

When the input port 11a is fastened, the twisted portion 11b is formed in the input port 11a, and the twisted portion 11b is fastened by the fastening band 83.
Even better fastening operation is possible. That is, when the twisted portion 11b is formed, the twisted portion 11b improves the sealing performance of the flexible container 11 ', and the inlet 11a is provided.
The diameter of the fastening portion can be kept small. However, since the flexibility of the fastening portion decreases and the fastening portion hardly moves during fastening, the insertion port 11a at the time of fastening, that is, the center of the fastening portion and the head portion 83 of the fastening band 83.
The influence of the positional deviation from a becomes significant. Therefore, in the configuration in which the twisted portion 11b is formed and the twisted portion 11b is fastened, if the configuration in which the fastening arm 121 is moved is adopted as described above, the above-mentioned twisted portion 11b is formed. A good fastening operation is possible while taking advantage of the advantages.

Further, in the mechanism for supplying the fastening band 83, the commercially available fastening band 83 is housed in the fastening band cartridge 82 for use, so that the structure is low in cost. That is, when the present insertion port fastening device 44 uses a dedicated fastening band 83, for example, a large number of band-shaped fastening bands 83, the forming die of the band-shaped fastening band 83 and each fastening band 83 are separated. A supply mechanism and the like are required, which results in a high-cost configuration, but the present inlet fastening device 44 does not require these and has a low-cost configuration.

When supplying the fastening band 83,
Fastening band 8 dropped from fastening band cartridge 82
Since 3 is first sent out from the head portion 83a and then inverted and sent from the circling portion 83c, the fastening band 83 can be smoothly conveyed. That is, when the fastening band 83 dropped from the fastening band cartridge 82 is first sent out from the winding portion 83c, the winding portion 83c
Since the head portion 83a, which is bulkier than c, is caught on the fastening band cartridge 82, each fastening band 8
It becomes difficult to send 3 sequentially and appropriately. Moreover, if this is done properly, a complicated mechanism for this is required.

Since the fastening band 83 is conveyed in the second supply path 93 between the switching gate 92 and the arm supply mechanism 125 by blowing air from the air nozzle 95, a space for the supply mechanism is provided. At the portion of the advancing / retreating plate 70, which is difficult to secure and tends to have a complicated structure, it is possible to carry by a simple structure.

In this embodiment, the advancing / retreating plate 7
0, that is, the forward / backward drive of the fastening arm 121 is performed by the ball screw 73 driven by the forward / backward plate drive motor 77, but it is also possible to perform it by a cylinder that also serves as forward / backward blocking releasing means. In this case, at the time of fastening by the fastening band 83, if the operation of the air cylinder 69 is released and the operation of the cylinder is released, the fastening arm 1
21 can also be moved forward and the degree of freedom in the moving direction of the fastening arm 121 can be increased, and a better fastening operation can be performed.

[0085]

As described above, in the flexible container bag loading port fastening device according to the first aspect of the invention, loading is performed from the fastening start position close to the loading port of the flexible container bag when the fastening arm starts the fastening operation. The structure is provided with a movement blocking releasing means that is movable in the mouth direction and that blocks movement of the fastening arm arranged at the fastening start position and that releases the movement blocking operation during the fastening operation.

As a result, even if the fastening operation reduces the diameter of the fastening portion at the insertion port of the flexible container bag, the loop connecting portion of the fastening band can be appropriately brought close to the outer peripheral portion of the fastening portion. Therefore,
It is possible to shorten the loop length of the fastening band that is looped and is fastened by narrowing the diameter of the charging port, so that the charging port can be satisfactorily fastened. Further, it is possible to prevent an extra air layer from being generated in the flexible container bag. Further, it is not necessary to perform highly accurate position control for arranging the loop connecting portion of the fastening band on the outer peripheral portion of the fastening portion after fastening at the insertion port, and a configuration for performing complicated control is unnecessary. Produce an effect.

A flexible container bag loading port fastening device according to a second aspect of the present invention is the flexible container bag loading port fastening device according to the first aspect, wherein the loading port fixing member and the flexible container bag are relative to each other. It is configured such that it is provided with an inlet twisting means that is rotated to form a twisted portion at the inlet, and the twisted portion is fastened by the fastening band.

As a result, in addition to the effect of the invention of claim 1, the influence of the deterioration of the fastening property due to the fact that the twisted portion reduces the flexibility of the fastening portion and the fastening portion hardly moves during fastening is suppressed. However, by forming the twisted portion, the sealing performance of the flexible container bag is improved, and the advantage that the diameter of the fastening portion can be kept small is used, and good fastening operation is possible. Play.

In the flexible container bag loading port fastening device of the third aspect of the invention, the flexible container bag loading device is rotatably provided from a fastening start position close to the loading port of the flexible container bag when the fastening arm starts the fastening operation. Further, the fastening start position is a position in which the center of the insertion opening is displaced with respect to a virtual straight line connecting the rotation center of the fastening arm and the holding position of the loop connecting portion, and the fastening arm arranged at the fastening start position. While blocking the rotation of the
This is a configuration including a rotation block releasing means for releasing the rotation block operation.

As a result, as in the case of the first aspect of the invention, the loop length of the fastening band which becomes a loop and is fastened by narrowing the diameter of the inlet can be shortened and the inlet can be satisfactorily fastened. You can Further, it is possible to prevent an extra air layer from being generated in the flexible container bag, and it is possible to obtain an effect that high-precision position control of the fastening band with respect to the loop connecting portion is unnecessary.

Further, the flexible container bag loading port fastening device of the invention of claim 4 is the flexible container bag loading port fastening device of claim 3, wherein the fastening arm is provided so as to be able to advance from the fastening start position. The advance blocking release means is provided for blocking the advance of the fastening arm arranged at the fastening start position and canceling the advance blocking operation during the fastening operation by the fastening band.

With this, in addition to the effect of the invention of claim 3, at the time of fastening, the loop connecting portion of the fastening band can be moved to a more appropriate position by the rotating operation and the advancing operation of the fastening arm. With this, the effect that the inlet of the flexible container bag can be more favorably fastened is achieved.

[Brief description of drawings]

FIG. 1 is a plan view showing an insertion port fastening device for a flexible container bag according to an embodiment of the present invention.

FIG. 2 is a front view showing the input port fastening device.

FIG. 3 is a side view of the inlet fastening device.

4 (a) is a front view of the fastening band cartridge shown in FIG. 1, and FIG. 4 (b) is CC in FIG. 4 (a).
FIG.

FIG. 5 is a perspective view showing a fastening band housed in the fastening band cartridge.

FIG. 6 is an enlarged view of the vicinity of the band supply disc shown in FIG.

FIG. 7 is a sectional view taken along the line DD in FIG.

8A is a perspective view of the switching gate shown in FIG. 1, and FIG. 8B is a perspective view of the switching gate viewed from a different direction from FIG.

9 is an enlarged plan view showing a main part of the arm part supply mechanism shown in FIG. 1. FIG.

FIG. 10 is an enlarged plan view showing the vicinity of the tip of the fastening arm when the rotary finger shown in FIG. 1 is moving to the first fastening position.

FIG. 11 is an enlarged plan view showing the vicinity of the tip of the fastening arm when the rotary finger is moving to the second fastening position.

FIG. 12 is a schematic plan view showing an automatic filling device provided with the above-mentioned inlet fastening device.

FIG. 13 (a) is a schematic front view showing an empty bag transfer section, a filling section, a fastening section, and a bag unloading section of the automatic filling device, and FIG. 13 (b) is shown in FIG. It is a longitudinal cross-sectional view of the charging nozzle.

FIG. 14 is a plan view of the hanger shown in FIG.

FIG. 15 is a front view of the hanging device.

16 is an enlarged view of the empty bag transfer unit shown in FIG.

FIG. 17 is a front view of the empty bag transfer unit.

18 is a sectional view taken along the line AA in FIG.

FIG. 19 is a plan view of the rotating machine shown in FIG.

20 is a sectional view taken along the line BB in FIG.

21 is a plan view of the upper part of the fastening portion shown in FIG. 13. FIG.

FIG. 22 is a front view of the upper part of the fastening portion.

23 is a schematic explanatory diagram showing a fastening operation by the loading port fastening device shown in FIG. 1. FIG.

[Explanation of symbols]

5 Fastening Part 11 Flexible Container Bag 11a Input Port 11b Twisting Part 12 Lifting Tool (Input Port Fixing Member) 42 Rotating Machine (Input Port Twisting Means) 44 Input Port Fastening Device 61 Base Plate 62 Base Gear 65 Base Gear Drive Motor 69 Air Cylinder (movement blocking releasing means, rotation blocking releasing means) 70 advancing / retreating plate 71 slide rail 72 rail guide 73 ball screw 77 advancing / retreating plate drive motor 83 fastening band 83a head (loop connecting portion) 83b insertion hole 83c orbiting portion 121 fastening arm 122 Fixed finger (loop formation guide part) 123 Rotating finger (loop formation guide part) 132 Head holding part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsukasa Oku, 351 Ejiri, Takaoka-shi, Toyama Prefecture Hokuko Co., Ltd.

Claims (4)

[Claims] 1. A loop connecting part having a loop connecting part at one end thereof is guided in a loop shape by a loop forming guide part provided at a front end part of the connecting arm, and the loop connecting part is held at a predetermined position of the connecting arm. In contrast, the other end side of the fastening band is fed so as to narrow the diameter of the loop, and the other end side is connected to the loop connecting part so that it is arranged in the loop and the opening end part is inserted. In a flexible container bag loading port fastening device in which a loading port of a flexible container bag fixed to a fixing member is fastened, the fastening arm starts fastening close to the loading port of the flexible container bag when starting the fastening operation. It is provided so that it can move from the position toward the insertion opening, and prevents movement of the fastening arm arranged at the fastening start position, while at the time of the fastening operation. , Inlet Fastening device flexible intermediate bulk container, characterized in that it comprises a movement preventing canceling means for canceling the movement preventing operation. 2. A loading port twisting means for rotating the loading port fixing member and the flexible container bag relatively to form a twisting part at the loading port, and the twisting part is fastened by the fastening band. The inlet fastening device for a flexible container bag according to claim 1, wherein 3. A loop connecting portion having a loop connecting portion at one end thereof is guided in a loop shape by a loop forming guide portion provided at a front end portion of the fastening arm, and the loop connecting portion is held at a predetermined position of the fastening arm. In contrast, the other end side of the fastening band is fed so as to narrow the diameter of the loop, and the other end side is connected to the loop connecting part so that it is arranged in the loop and the opening end part is inserted. In a flexible container bag loading port fastening device in which a loading port of a flexible container bag fixed to a fixing member is fastened, the fastening arm starts fastening close to the loading port of the flexible container bag when starting the fastening operation. Is rotatably provided from the position, and the fastening start position is a virtual straight line connecting the rotation center of the fastening arm and the holding position of the loop connecting portion. The center of the insertion opening is displaced with respect to the rotation preventing release means for preventing rotation of the fastening arm arranged at the fastening start position and canceling the rotation blocking operation during the fastening operation. An inlet fastening device for a flexible container bag, which is characterized by comprising: 4. The fastening arm is provided so as to be able to advance in the radial direction in the rotation from the fastening start position to prevent the fastening arm arranged at the fastening start position from going forward, and at the time of fastening operation by the fastening band. 4. The flexible container bag loading port fastening device according to claim 3, further comprising advance blocking releasing means for releasing the advance blocking operation.