JPH07215318A - Apparatus for tightening input port of flexible container bag - Google Patents

Abstract

PURPOSE:To put tightening bands available on the market in a cartridge and use them by transferring the tightening band with a peripherally rounding part side in the lead after the tightening band is moved from the take-out-position of the cartridge with a head part side of the band in the lead. CONSTITUTION:When a tightening band 83 drops from a cartridge and is held by a band receiving tool 85, a head part 83a of the band 83 is pushed out by a cylinder 86 in the direction of a band supply disk 87 and is fitted into an engaging recess 87a. Then, the band supply disk 87 turns clockwise, and the receiving tool 85 retreats. The band 83 is introduced into a feed path 91 from the head part 83a by the turning of the disk 87 and moves up to an (a) position. Then, when a change-over gate 92 is changed over and the disk 87 turns counterclockwise, the band 83 is moved with the head part 83a positioned rearward and is introduced into a feed path 93 from the feed path 91 through the gate 92 to move up to a (b) position. Then, air is injected from an air nozzle 95, and the band 83 in the (b) position is sent to an arm part.

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. 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 inlet of the flexible container is automatically fastened, the fastening band is arranged in a collar shape around the above-mentioned inlet rather than being fastened by the surface fastener as described above. Then, the other end side of the fastening band is passed through the fastening portion provided on one end side of this fastening band,
A method of pulling the other end side to make the collar smaller and then fastening the input port can tightly and surely fasten the input port. That is, this type has a better fastening property, and it is possible to favorably hold the powder or granules that are not susceptible to contact with air or infiltration of water.

Therefore, in order to obtain the above-mentioned fastening device, it is conceivable to employ the binding device disclosed in, for example, Japanese Patent Laid-Open No. 4-102521. This binding device uses, for example, a nylon fastening band having an annular fastening portion on one end side. The other end side is passed through the fastening portion, and the other end side is pulled and fastened, which is called a so-called insulock system. It is what is done.

In the above binding device, the binding band is
A large number of binding bands provided between linear strips that are parallel to each other are formed as a band-shaped body with both ends connected to the strips. This fastening band is used for bundling after the band is fed in the longitudinal direction, and each bundling band is sequentially divided into strips on both sides and then linearly fed in a direction orthogonal to the feeding direction of the band. It

[0006]

However, in order to use the binding device using the above band-shaped binding band as a flexible container insertion port fastening device, a fastening band having a size suitable for fastening the flexible container insertion port is used. Equipment such as a molding die for molding the above-mentioned strip-shaped body is required. In addition, in the insertion port fastening device, a mechanism for feeding the band-shaped body and cutting out the fastening band from the band-shaped body is required. For this reason,
There is a problem in that the flexible container inlet fastening device becomes expensive.

On the other hand, as a fastening band having a size suitable for fastening an inlet of a flexible container, a fastening band which is divided into individual pieces is commercially available. Therefore, if such a commercially available fastening band is used, the equipment for forming the fastening band of the above-mentioned strip and the mechanism for feeding the strip and cutting out the fastening band from this strip are not required, and the insertion port fastening is performed at low cost. The device can be obtained. Therefore, there is a demand for development of a flexible container inlet fastening device that can use the commercially available fastening band.

[0008]

In order to solve the above-mentioned problems, a flexible container bag insertion port fastening device 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. The looped part of the fastening band having the head at one end of the part is guided in a loop shape, and this looped part is inserted into the insertion hole formed in the head part and is sent so as to reduce the diameter of the loop. By being connected to
In a flexible container bag loading port fastening device in which a loading port of a flexible container bag arranged in the loop is fastened, the fastening bands are arranged in the same direction with the heads in a row, and a large number of them are placed in a cartridge. It can be taken out sequentially from one end of the cartridge by moving in the arranging direction while accommodating individually,
The fastening band, which has been taken out from the cartridge in the above-mentioned arranging direction, is moved from the take-out position from the cartridge with the head side as the head, and then is conveyed with the orbiting section side as the head, thereby forming the loop. It is characterized in that a fastening band supply means for supplying to the guide portion is provided.

According to a second aspect of the present invention, there is provided a flexible container bag insertion port fastening device, wherein the fastening band supply means is a fastening band from a cartridge. A first supply path having a start end portion near the take-out position, a second supply path provided between the first supply path and the loop forming guide portion, and a cartridge which is taken out from the cartridge by moving in the alignment direction. The fastening band is engaged with the head of the fastening band, the fastening band is taken in from the head to the first supply path by the forward movement, and is conveyed along the first supply path, while the backward movement causes the fastening band to move to the first position with the orbiting portion at the top. A first conveying unit that conveys along the supply path and a loop forming guide portion side position in the second supply passage that conveys the fastening band along the second supply passage, and loops. A third conveying means for supplying the forming guide portion, a fastening band for guiding the fastening band to the first conveying path at the time of the forward movement by the first conveying means, and a guide gate to the second conveying path at the backward movement; The fastening band taken from the first supply path to the second supply path by the backward movement operation of the first conveying means and the switching gate is blown by the compressed air into the third band.
It is characterized in that it is provided with a second transfer means for blowing away to a position where it can be transferred by the transfer means.

A flexible container bag loading port fastening device according to a third aspect of the present invention is the flexible container bag loading port fastening device according to the second aspect, wherein the fastening band supply means and the fastening arm are the fastening arms. The loop forming guide is provided on the rotatable rotary table at a retracted position that makes the container substantially parallel to the transport direction of the flexible container bag and a fastening operation position facing the flexible container bag, and the first supply path is formed in an arc shape. In the second supply passage, the portion on the first supply passage side is the first
It is characterized in that it extends in the tangential direction of the circular arc in the supply path, bends from this portion by approximately 90 ° and extends in the direction of the loop forming guide portion.

[0011]

According to the structure of the present invention, the fastening band supplied to the loop forming guide portion is guided in a loop by the loop forming guide portion, and the winding portion of the fastening band is formed on the head portion of the fastening band. It is inserted through the insertion hole, and further fed so as to reduce the diameter of the loop and connected to the head. Thereby, the insertion port of the flexible container bag arranged in the loop is fastened.

On the other hand, the fastening band supplied to the loop forming guide portion is of a size suitable for fastening the above-mentioned inlet. The fastening band is commercially available in a unit of 50 or 100 in a state of being individually divided, and is used by being housed in a cartridge. The fastening bands are arranged in the same direction in the cartridge in the same direction in the cartridge, and a large number of the fastening bands are housed. By moving in the direction, the fastening bands can be sequentially taken out from one end of the cartridge.

The fastening band is supplied from the cartridge to the loop forming guide portion by fastening band supply means. In this supplying operation, the fastening band that has been taken out of the cartridge by moving in the above-mentioned arranging direction is moved from the take-out position from the cartridge with the head side as the leading end by the conveying operation of the fastening band supplying means, and then the circulating portion side. Is fed to the loop forming guide portion.

As described above, in the insertion port fastening device of the present invention, the commercially available fastening band can be housed in the cartridge and used, so that it has a low cost structure. That is, if this device uses a dedicated fastening band, for example, a large number of fastening bands connected in a strip shape, a molding die for this band-shaped fastening band, a mechanism for dividing and supplying each fastening band, etc. are required. Therefore, the cost is high, but the present apparatus does not need them.

Further, in the present insertion port fastening device, the fastening band is first transported with the head side first, and then the transporting direction is reversed and the circulation part side is transported first, so that the cartridge is carried out. It is possible to favorably supply the fastening band housed in the loop forming guide portion.

That is, in the fastening band, the head portion having the insertion hole for inserting the circling portion has a bulky shape with respect to the circling portion. Therefore, when the fastening bands are moved in the arrangement direction and sequentially taken out from the cartridge, the gap between the surface of the member that receives the taken-out fastening band and the take-out side end portion of the cartridge has a gap of the head portion of the fastening band. It must be set according to the size. Therefore, when it is attempted to convey the fastening band with the orbiting portion side as the leading end in this state, the tip of the orbiting portion of the fastening band to be conveyed and the tip of the orbiting portion of the next fastening band receive the fastening band. It tends to be caught between the surface of the member and the take-out side end of the cartridge, and the fastening band cannot be conveyed properly.

On the other hand, if the fastening band is transported with the head side first, the above problems do not occur, and the fastening band can be favorably transported from the take-out position. In addition, if the transporting direction of the fastening band is reversed thereafter, the fastening band can be supplied from the winding section to the loop forming guide section.

According to the second aspect of the present invention, the fastening band moved from the cartridge in the direction in which the fastening bands are arranged and taken out is moved from the head to the first position by the forward movement of the first conveying means engaging with the head. It is taken into the first supply path, and is guided along the first supply path with the guidance of the switching gate.
After that, the fastening band is conveyed along the first supply path by the backward movement of the first conveying means, with the orbiting portion at the front, that is, the state in which the conveying direction is reversed. During reverse conveyance by this backward movement, the fastening band is guided to the switching gate and moves to the second supply path.

Next, the fastening band moved to the second supply passage is blown in the second supply passage to a position where it can be conveyed by the third conveying means by blowing compressed air from the second conveying means. After that, the fastening band is supplied to the loop forming guide portion by the third conveying means.

As described above, since the second conveying means conveys the fastening band by blowing compressed air, it suffices to arrange only an air nozzle in the supply passage,
The structure around the supply path can be simplified. Thereby, the structure of the inlet fastening device can be simplified.
Furthermore, the degree of freedom in the layout of the first to third conveying means can be improved. Further, in the configuration of the second conveying means, the first conveying means that takes in the fastening band from the take-out position from the cartridge into the first supply path and reciprocally conveys the fastening band, and the fastening band is supplied to a predetermined position of the loop forming guide part. It is difficult to apply it to the third transfer means, and it is possible to apply with a simple structure only to the second transfer means provided between the first and third transfer means.

According to the third aspect of the present invention, the fastening band supplying means and the fastening arm face the flexible container bag at the retracted position for making the fastening arm substantially parallel to the carrying direction of the flexible container bag and the loop forming guide portion. Since it is provided on the rotary table that can be rotated to the fastening operation position, the fastening arm is retracted linearly in the opposite direction of the flexible container bag when the flexible container bag is transported, as compared with the case where the fastening arm is retracted linearly. The area required for the fastening device can be effectively reduced.

The first supply passage is formed in an arc shape, and the second supply passage has a portion on the side of the first supply passage extending in the tangential direction of the arc of the first supply passage, and is curved by about 90 ° from this portion. Since it extends in the direction of the loop forming guide portion, compared to the case where the first and second supply paths are linearly provided, the members for providing these supply paths can be made smaller, and the injection port fastening device itself can be made compact. It has become a thing.

[0023]

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, in the hanger 12 shown in FIG. 14 and FIG.
As shown in the empty bag transfer unit 3 in (a), the bag is suspended.

The hoisting tool 12 includes 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 a chain conveyor 17 shown in FIG.

The empty bag stocking section 2 is a place for stocking the empty flexible container 11 mounted on the hanger 12 in the empty bag mounting section 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 section 3 has a rectangular frame frame 21 extending from the empty bag stock section 2 to the filling section 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 inner side 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. Rotating machine 42, elevator 43 for raising and lowering carry-out conveyor 41, flexible container 11
‘Holding tool 1 provided by a clamp device 14 provided at the upper part of the fastening part 5 for fastening the loading port 11a
The clamp release device 45 shown in FIGS. 21 and 22 for releasing the attachment state of the flexible container 11 ′ to the 2 and the hanger 1
A chain conveyor 17 for carrying 2 is 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 inlet fastening device 44 has a base plate 6 near the center 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. The stopped state of the base plate 61 at each of the above positions is held by an air cylinder 69 provided below the base gear 62. The air cylinder 69 prevents the rotation of the base gear 62 by pressing a brake pad 80 provided on the rod portion thereof against the base gear 62.

An advancing / retreating plate 70, which is a rotary table, 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. The slide rails 71, 71 are provided on the base plate 61 with a pair of rail guides 72. It is guided by 72 and slides. A ball screw 73 extending parallel to the slide rail 71 is provided between the advancing / retreating plate 70 and the base plate 61. An advancing / retreating piece 74 connected to the advancing / retreating plate 70 is screwed to the ball screw 73. 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 advancing / retreating plate 70 is driven by the advancing / retreating plate driving motor 77 to move back and forth between the advancing position and the retracting 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 at 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 FIG. 7B which is a sectional view taken along the line C, a nylon fastening band 83 has heads 83a aligned in one direction,
It is housed in a row. As shown in FIG. 5, the binding band 83 has a cord-shaped winding portion 83c.
Is provided with a head portion 83a having an insertion hole 83b at one end thereof, and as shown by a two-dot chain line in FIG. The portion arranged inward of the portion 83c is fastened 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 drops and is taken out from the fastening band cartridge 82. 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.

In the advancing direction of the receiver driving cylinder 86, as shown in FIGS. 1 and 6, a band feeding disk 87 as a first conveying means is rotatably provided. 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 up and down 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, as shown in FIG. 6, the first supply path 91 is provided with a first supply path 91 at a position opposite to the second supply path 93 side in the tangential direction passing through the second guide path 92b of the switching gate 92. 2 An air nozzle 95 is provided as a conveying means. The air nozzle 95 is driven by compressed air supplied from a compressed air supply source (not shown) to the second guide path 92b.
This is for blowing the fastening band 83 located in the direction toward the second supply path 93.

As shown in FIG. 1, the second supply path 93 is bent to approximately 90 ° from the position of the switching gate 92 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 fixed finger 122 side of the fastening arm 121 with respect to the second supply path 93, an arm portion supply mechanism 125 as a third transfer means is provided. The arm portion supply mechanism 125 includes a sprocket 126 provided near the end of the second supply path 93 and a sprocket 12 provided on the advancing / retreating plate 70 near the rear end of the fastening arm 121.
7, a forward / reverse reversible motor 128 for rotating the sprocket 127, a timing belt 129 hung between the sprockets 126 and 127, and the pusher 13 shown in FIG.
It consists of zero. The pusher 130 is attached to the timing belt 129, and is used to convey the fastening band 83 by moving together with the timing belt 129 and pushing the head portion of the fastening band 83 at the tip. The pusher 130 reciprocates by the forward / reverse rotation of the motor 128. Further, as shown in FIG. 1, a band sensor 131 similar to the band sensor 84 is provided at an upstream position of the sprocket 127 in the second supply passage 93. The arm portion supply mechanism 125, the air nozzle 95, the band supply disk 87, the first supply path 91, and the second supply path 93 constitute a fastening band supply means of the main slot fastening device 44.

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 portion 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. A sprocket 140 provided on the advancing / retreating plate 70, a timing belt 141 hung between the fastening roller 139 and the sprocket 140,
A motor 142 for driving the sprocket 140 and a third fastening cylinder 143 for moving the fastening roller 138 forward and backward with respect to the fastening roller 139 are provided.

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 includes a carrying conveyor 111 for receiving and carrying 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-described structure including the inlet fastening device 44 of this embodiment will be described below.

First, in the empty bag mounting section 1 shown in FIG. 12, the worker attaches an empty flexible container 11 to the lifting tool 12 carried in by the chain conveyor 17 from the lifting tool transfer section 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 unit 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 a 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. 13B, air is sent to the sealing member 38 provided on the outer cylinder 35a of the charging nozzle 35, and the bulging sealing 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 bundling section 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 insertion opening fastening operation, first, the portion above the base gear 62, that is, the advancing / retreating plate 70, 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 ball screw 73 is rotated by being driven by the advancing / retreating plate drive motor 77, and the advancing / retreating plate 70 is advanced. 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, as shown in FIG. 23, the fastening band 8
When the state in which 3 is falling from the band cartridge 82 onto the band receiving surface 70a of the advancing / retreating plate 70 is detected by the band sensor 84, the receiving member drive cylinder 86.
Is operated, the head portion 83a of the fastening band 83 held by the band receiver 85 is pushed out toward the band supply disc 87.

At this time, as shown in FIG. 23, the gap between the band receiving surface 70a and the lower end of the fastening band cartridge 82 is substantially the same as the fastening band 8 on the band receiving surface 70a.
Since the height of the three heads 83a is set, the individual band heads 83a can be sequentially fed by the band receiver 85. Further, the band supply disk 87 is arranged such that the engaging recess 87a faces the band receiving member 85, and the head portion 83a of the fastening band 83 is located in the engaging recess 8.
It is inserted into 7a. Also, the fastening band cartridge 82
The fall of the head portion 83a of the next fastening band 83 is prevented by the rear portion of the band receiver 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 moved 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 position b is detected by the band sensor 131 shown in FIG. 1, the first fastening cylinder 133 is actuated, 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, and the fastening band 83 at the b position is blown 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 squeezed and fastened. Further, the fastening arm 121 rotates to a position where the distance between the head holding portion 132 and the center of the twisted portion 11b is the shortest. In this embodiment, the rotation of the fastening arm 121 is restricted in a state where the fastening arm 121 is in contact with the twisted portion 11b.

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 retreat, and the rotary finger 123 is moved.
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 rotates in the reverse direction, 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. In this state, the fastening arm 121 causes the flexible container 11 in the fastening portion 5 to move.
The position is substantially parallel to the conveyance direction of.

Upon completion of the operation for 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 is lowered 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 operates the lifting tool transfer section 7 which performs the same operation as the empty bag transfer section 3.
Is conveyed to the empty bag mounting unit 1.

As described above, in the present slot fastening device 44, the commercially available fastening band 83 is housed in the fastening band cartridge 82 and used, so that it has a low cost structure. 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 these are not necessary in the present insertion port fastening device 44.

Further, in the present slot fastening device 44, the fastening band 83 is first transported with the head portion 83a side first, and then the transport direction is reversed and the circulation portion 83c side is transported first. By the fastening band cartridge 82
The fastening band 83 housed in the can is favorably supplied to the fixed and rotary fingers 122 and 123.

That is, in the fastening band 83, the winding portion 8
The head portion 83a having the insertion hole 83b through which the 3c is inserted is
It has a bulky shape with respect to the circulating portion 83c. Therefore, when the fastening bands 83 are moved in the arrangement direction in the fastening band cartridge 82 and sequentially taken out from the cartridges 82, the band receiving surface 70 a for receiving the taken-out fastening bands 83 and the take-out side end of the fastening band cartridge 82. It is necessary to set the gap between the parts according to the size of the head portion 83a of the fastening band 83. Therefore, in this state, when the fastening band 83 is to be transported with the circulating portion 83c side as the leading end, as shown in FIG. 23, the next fastening band 83 together with the leading end of the circulating portion 83c of the fastening band 83 to be transported. The leading end of the circling portion 83c is easily caught between the band receiving surface 70a and the take-out side end of the fastening band cartridge 82, so that the fastening band 83 cannot be conveyed properly.

On the other hand, if the fastening band 83 is first conveyed with the head portion 83a side as the head, the above problem does not occur,
The fastening band 83 can be satisfactorily conveyed between the band receiving surface 70a and the fastening band cartridge 82.

Further, in the present inlet fastening device 44, the fastening band 83 is transported by blowing compressed air from the air nozzle 95 in the front part of the second supply passage 93, and therefore, as the transporting means in this case, Only the air nozzle 95 needs to be arranged in the first supply passage 91, and the structure around the first and second supply passages 91 and 93 can be simplified. As a result, the structure of the inlet fastening device 44 is simplified and the flexibility of the band supply disk 87, the air nozzle 95 and the arm part supply mechanism 125 is increased.
Further, in the configuration in which the air nozzle 95 is used for transporting, the fastening band 83 is taken into the first supply path 91 from the take-out position from the fastening band cartridge 82 and reciprocally transported, and the fastening band 83 and the head band 8 are conveyed.
It is difficult to apply to the arm part supply mechanism 125 that supplies 3a so that it is held by the head holding part 132, and it can be applied with a simple structure only as a carrying means between these both carrying means.

Further, in the present insertion port fastening device 44, each of the above-mentioned conveying means of the fastening band 83 and the fastening arm 121 are
This fastening arm 121 is connected to the flexible container 11 'at the fastening portion.
Since the retractable position for making the direction substantially parallel to the transporting direction and the fixed and rotating fingers 122, 123 are provided on the advancing / retreating plate 70 rotatable in the fastening operation position facing the flexible container 11 ′, the fastening arm 121 is provided. It is possible to effectively reduce the area required for the inlet fastening device 44, as compared with the case where the flexible container 11 ′ is linearly retracted in the conveyance direction of the ′ ′.

Further, the first supply passage 91 is formed in an arc shape, and the second supply passage 93 has a first portion on the side of the first supply passage 91 as a first portion.
It extends in the tangential direction of the circular arc in the supply path 91, and is curved by approximately 90 ° from this portion to fix and rotate the fingers 122,
Since it extends in the 123 direction, the first and second supply paths 9
Compared with the case where the 1.93 are linearly provided, the members for providing the supply paths 91, 93, that is, the advancing / retreating plate 70 and the fastening arm 121 can be made smaller, and the inlet fastening device 44 itself is small. Has become.

Further, in the present slot fastening device 44, when fastening the slot 11a of the flexible container 11 'by the fastening band 83, the fastening state of the fastening arm 121 is released and the fastening held by the head holding portion 132. Head 83 of band 83
The fastening arm 121 rotates to a position where the distance between a 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 fastened by narrowing the diameter of the charging port 11a.
It is possible to fasten a. Also, flexible container 11
It is also possible to prevent the formation of an extra air layer in the ′. 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 structure 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 as described above is adopted, the above-described advantages of forming the twisted portion 11b are obtained. After making the best use of it, a favorable fastening operation becomes possible.

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 can also be performed by a cylinder. In this case, when the operation of the air cylinder 69 is canceled and the operation of the cylinder is canceled at the time of fastening with the fastening band 83, the fastening arm 121 can be moved forward and the degree of freedom in the moving direction of the fastening arm 121 can be increased. Is increased, and a better fastening operation is possible.

[0092]

As described above, in the flexible container bag insertion opening fastening device according to the first aspect of the present invention, the fastening bands are arranged in the same direction with the heads in a row, and a large number of them are stored in the cartridge. At the same time, it is possible to sequentially take out from one end of the cartridge by moving in the above-mentioned arranging direction. After moving from the take-out position,
It is configured such that it is provided with a fastening band supply means for supplying the loop forming guide portion by conveying the wrapping portion side first.

With this, since the commercially available fastening band can be housed in the fastening band cartridge and used, this apparatus can be constructed at a low cost. In addition, there is an effect that the fastening band housed in the cartridge can be satisfactorily supplied to the loop forming guide portion.

According to a second aspect of the present invention, there is provided a flexible container bag input port fastening device, wherein the flexible band is provided with the fastening band supply means. A first supply path having a start end portion near the take-out position, a second supply path provided between the first supply path and the loop forming guide portion, and a cartridge which is taken out from the cartridge by moving in the alignment direction. The fastening band is engaged with the head of the fastening band, the fastening band is taken in from the head to the first supply path by the forward movement, and is conveyed along the first supply path, while the backward movement causes the fastening band to move to the first position with the orbiting portion at the top. A first conveying unit that conveys along the supply path and a loop forming guide portion side position in the second supply passage that conveys the fastening band along the second supply passage, and loops. A third conveying means for supplying the forming guide portion, a fastening band for guiding the fastening band to the first conveying path at the time of the forward movement by the first conveying means, and a guide gate to the second conveying path at the backward movement; The fastening band taken from the first supply path to the second supply path by the backward movement operation of the first conveying means and the switching gate is blown by the compressed air into the third band.
It is the structure provided with the 2nd conveyance means which blows off to the position which can be conveyed by a conveyance means.

Thus, in addition to the effect of the first aspect of the invention, in the structure in which the first to third conveying means are provided in the conveying path of the fastening band, the structure of the inlet fastening device can be simplified and It is possible to improve the degree of freedom in layout of the first to third conveying means.

According to a third aspect of the present invention, there is provided a flexible container bag loading port fastening device, wherein the fastening band supply means and the fastening arm are the fastening arm. And a loop forming guide portion are provided on a rotatable table that is rotatable between a retracted position that makes the container substantially parallel to the transport direction of the flexible container bag and a fastening operation position that faces the flexible container bag, and the first supply path is formed in an arc shape. And the second supply path is the first supply path side portion being the first
The structure is such that it extends in the tangential direction of the circular arc in the supply path, curves from this portion by approximately 90 °, and extends in the direction of the loop forming guide portion.

As a result, the area required for the inlet fastening device can be effectively reduced, and the members for providing the first and second supply paths can be reduced in size, and the inlet fastening device itself can be miniaturized. There is an effect that can be.

[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 an explanatory diagram showing a state where the fastening band is taken out from the fastening band cartridge shown in FIG. 1. FIG.

[Explanation of symbols]

5 Fastening part 11 Flexible container bag (empty bag) 11 'Flexible container bag (actual bag) 11a Input port 11b Twisted part 44 Input port fastening device 61 Base plate 62 Base gear 70 Forward / backward plate (rotating table) 70a Band receiving surface 82 Fastening Band cartridge 83 Fastening band 83a Head portion 83b Insertion hole 83c Circulating portion 87 Band supply disk (first transport means, fastening band supply means) 91 First supply path (fastening band supply means) 92 Switching gate 93 Second supply path (fastening) Band supply means) 95 Air nozzle (second transfer means, fastening band supply means) 121 Fastening arm 122 Fixed finger (loop formation guide part) 123 Rotating finger (loop formation guide part) 125 Arm part supply mechanism (third transfer means, Fastening band supply means) 13 Head holding unit

Front Page Continuation (72) Inventor Tsukasa Koku, 351 Ejiri, Takaoka, Toyama Prefecture

Claims (3)

[Claims] 1. A loop forming guide portion provided at a front end portion of a fastening arm guides a loop portion of a fastening band having a head portion at one end portion of the loop portion, and the loop portion is provided at the head portion. Inserting the flexible container bag that is inserted through the formed insertion hole, is sent so as to narrow the diameter of the loop, and is connected to the head, so that the insertion port of the flexible container bag arranged in the loop is fastened In the mouth fastening device, the fastening bands are arranged in the same direction with the heads in a line and are housed in a cartridge in large numbers,
By moving in the arranging direction, it is possible to sequentially take out from the one end of the cartridge, and the fastening band that has been taken out from the cartridge in the arranging direction is moved from the take-out position from the cartridge with the head side as the head. A flexible container bag insertion port fastening device comprising: fastening band feeding means for feeding the loop forming guide portion by feeding the looped portion side first. 2. The fastening band supply means is provided between a first supply path whose starting end is near the position where the fastening band is taken out of the cartridge, and between the first supply path and the loop forming guide portion. The second supply path is engaged with the head portion of the fastening band that has been taken out from the cartridge by moving in the above-mentioned arranging direction, and the fastening band is taken in from the head portion to the first supply path by the forward movement, and follows the first supply path. On the other hand, while being conveyed, the fastening band is provided at the loop forming guide portion side position in the second supply path by the first feeding means for carrying the fastening band along the first supply path with the orbiting portion at the head, and the fastening band is provided as the second fastening band. The third conveying means that conveys along the supply path and supplies to the loop forming guide part and the fastening band are guided to the first conveying path when the first conveying means moves forward, and to the second conveying path when returning. Do The fastening band taken from the first supply path to the second supply path by the switching gate, the backward movement of the first transfer means and the switching gate can be transferred by the third transfer means by blowing compressed air. 2. The flexible container bag loading port fastening device according to claim 1, further comprising a second transporting unit that blows it to a position. 3. The fastening band supply means and the fastening arm rotate to a retracted position for making the fastening arm substantially parallel to the transport direction of the flexible container bag and a fastening operation position where the loop forming guide portion faces the flexible container bag. Is provided on a rotatable table, the first supply path is formed in an arc shape, and the second supply path has a portion on the first supply path side extending in a tangential direction of the arc in the first supply path,
The insertion port fastening device for a flexible container bag according to claim 2, wherein the flexible container bag is curved at about 90 ° from this portion and extends toward the loop forming guide portion.