JP6926431B2 - Filling equipment, bag-in-box manufacturing equipment, and bag manufacturing method - Google Patents

Description

The present invention relates to a filling device, a bag-in-box manufacturing device, and a bag manufacturing method.

As a kind of container for storing contents such as liquid, a bag-in-box in which a flexible bag is stored as an inner bag in an outer box made of corrugated cardboard, for example, is known. The back-in-box manufacturing method consists of a transport process in which a row of bags in which a plurality of empty flexible bags are connected is sent along a predetermined transport path, and a filling process in which the flexible bags are filled with contents at a filling station on the transport path. It also includes a cutting process of cutting a row of bags at a cut station provided on the downstream side of the filling station and individually separating the bags, and a storage process of accommodating the flexible bag in the outer box.

It is known that a bag-in-box manufacturing apparatus is provided with a transport path inclined so that the downstream side descends, and a flexible bag filled with contents transports a row of bags by a force of moving to the downstream side by its own weight. (See, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 6-135403

However, in a configuration in which the bag row is pulled downstream by its own weight in an inclined transport path, the vicinity of the filling port of the flexible bag is easily deformed, and the position accuracy in various processes is lowered, so that the processing accuracy is lowered.

Therefore, an object of the present invention is to provide a filling device, a bag-in-box manufacturing device, and a bag manufacturing method capable of improving processing accuracy.

The filling device according to one embodiment of the present invention includes a transport unit that feeds a bag row including a plurality of bags having a filling port in a row along a predetermined transport path, and the bag row at the filling position of the transport path. The bag is provided with a filling portion for injecting the contents through the filling port, and the transport portion is sandwiched between the holding portion that holds the bag row on the upstream side of the filling position of the transport path and the holding portion. The bag row is provided with a feed portion that applies a force to feed the bag row downstream on the downstream side of the filling position of the transport path of the bag row, and the holding portion is arranged along the transport path. It is configured to be movable at a pressing position where the bag row is sandwiched between the transport rail and the transport rail and the bag row is pressed toward the transport rail side and a retracting position where the bag row is allowed to move. It is equipped with a bag holding pad .

According to the present invention, it is possible to provide a filling device capable of improving processing and filling accuracy, a bag-in-box manufacturing device, and a bag manufacturing method.

The side view of the filling apparatus which concerns on embodiment of this invention. Top view of the filling device. The explanatory view which shows the structure of the bag-in-box manufacturing apparatus which concerns on embodiment. The explanatory view which shows the operation of the holding mechanism in the manufacturing apparatus of the bag-in-box. The explanatory view which shows the operation of the holding mechanism in the manufacturing apparatus of the bag-in-box. Explanatory drawing which shows the manufacturing method of a bag-in-box.

Hereinafter, the filling device 10, the bag-in-box 4 manufacturing device 1, and the bag-in-box 4 manufacturing method according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a side view of the filling device 10 according to the present embodiment, and FIG. 2 is a plan view. FIG. 3 is an explanatory view showing the configuration of the manufacturing apparatus 1 of the bag-in-box 4, and FIGS. 4 and 5 are explanatory views showing the configuration of the holding mechanism. FIG. 6 is an explanatory diagram showing a method of manufacturing the bag-in-box 4. Arrows X, Y, and Z in the figure indicate three directions orthogonal to each other. For the sake of explanation in each figure, the configuration is shown enlarged, reduced or omitted as appropriate.

The filling device 10 shown in FIGS. 1 to 3 is used for manufacturing a so-called bag-in-box 4 in which a flexible bag 3 which is a bag serving as an inner bag is housed in an outer box 2 made of cardboard, for example. This is a device for filling the content C1 in the flexible bag 3 having the part 5.

The flexible bag 3 is formed in a bag shape by welding and sealing the four sides of a quadrangular film. At a predetermined position of the flexible bag 3, a filling port portion 5 called a spout, which is formed of a synthetic resin in a tubular shape, is provided. A cap 6 which is a removable spout made of synthetic resin is attached to the filling port 5.

As shown in FIG. 4, a male screw portion screwed into the cap 6 is formed on the outer periphery of the tip portion in the axial direction of the filling port portion 5. On the outer peripheral surface of the base end portion of the filling port portion 5, a plurality of annular ribs 5a protruding outward are provided as uneven portions. The annular rib 5a is formed so as to be engageable with the guide rail 31, the holding arm 28, and the holder part 29 as the holding mechanism. The flexible bags 3 are transported along the transport path A1 in a state where the filling ports 5 are arranged upward as a bag row 3A configured by connecting a plurality of the flexible bags 3 integrally. Perforations 3a are formed at the cut line at the boundary between the adjacent flexible bags 3 in the bag row 3A.

The filling device 10 includes a transport mechanism 20 that is a transport unit that feeds the bag row 3A along a predetermined transport path A1, and a filling mechanism that is a filling unit that sequentially injects the contents C1 into the empty flexible bag 3 of the bag row 3A. 30 is provided, a cutting mechanism 40 which is a cutting portion for cutting the bag row 3A and individually separating the bag row 3A, and a control unit 50 for controlling the operation of each portion.

The transport path A1 is a path sequentially from the supply position P1 in which the bag row 3A is supported in a roll shape, through the filling position P2 in which the filling process is performed, to the cutting position P3 in which the cutting process is performed. An accommodating mechanism 60 is provided, for example, on the downstream side of the cutting position P3 of the transport path A1. For example, the accommodating mechanism 60 sequentially sets the outer box 2 in the standby position with the upper side open, puts the cut bag into the outer box 2, and carries out the outer box 2.

The transport mechanism 20 includes a roll support section 21 as a supply section, a holding section 22, a filling table 23, a drive roller 24 as a feed section, and a cutting table 25. The transport mechanism 20 sends the bag row 3A downstream at a predetermined speed along a predetermined transport path A1 and holds the flexible bag 3 at a predetermined position at a predetermined timing.

The roll support portion 21 has a support shaft 21a extending in the width direction orthogonal to the transport path A1 at the supply position P1. The roll support portion 21 is inserted into a support hole formed in the center of the bag roll formed by winding the bag row 3A in a roll shape, and rotatably supports the bag roll at the supply position P1.

The holding portion 22 includes a transport rail 26 arranged along the transport path A1, a pressing pad 27, a holding arm 28 as a pressing member, and a holder part 29 as a receiving member.

The transport rail 26 is arranged horizontally. The transport rail 26 defines a horizontal transport path.

The transport rail 26 includes a pair of guide rails 31 extending along the transport path A1, and a slit passage 32 having a width through which the filling port 5 can pass is formed between the pair of guide rails 31. The transport rail 26 is arranged above the bag row 3A and guides the bag row 3A horizontally along the transport path A1.

The pair of guide rails 31 are arranged on both sides of the filling port portion 5 and are configured to be engaged with the annular ribs 5a formed on the outer periphery of the filling port portion 5 arranged upward. The transport rail 26 defines the position of the filling port 5 of each flexible bag 3 at a constant height by holding the filling port 5 in the slit passage 32 by a pair of guide rails 31.

The pressing pad 27 is an elongated member that is made of a fluororesin (Teflon (registered trademark) / PTFE) or urethane / rubber / sponge / felt material and extends in the width direction. The pressing pad 27 extends over the entire length in the width direction at a predetermined position on the downstream side of the supply table. The pressing pad 27 is configured to be movable up and down between the pressing position and the retracting position.

The pressing pad 27 abuts on the lower surface of the flexible bag 3 at the pressing position, and elastically presses the bag row 3A from the lower side toward the upper transport rail 26 to push the bag row 3A into the transport rail 26. Hold it between the two to prevent misalignment. By retracting the pressing pad 27 to the lower retracted position, the pressing pad 27 is separated downward from the bag row 3A and allows the bag row 3A to move.

The holding arm 28 is an arm member whose front portion extends along the transport path A1 and is inclined rearward, and the rear portion bends toward the side of the transport path A1. The holding arm 28 includes a tip edge 28a curved in an arc shape. The base end portion of the holding arm 28 is connected to an air cylinder 38 which is a drive mechanism.

The holding arm 28 is configured to be rotatable about a predetermined rotation axis, and has a first position S1 retracted to the outside of the slit passage 32 and a second position S2 in which at least the tip portion is arranged in the slit passage 32. It is configured to be rotatable between and. For example, the holding arm 28 is arranged at the second position S2 in the free state, is pressed toward the first position S1 by the movement of the filling port 5, and can rotate, and is rotatable by an urging member such as a spring material. It is urged to return to the 2nd position S2.

Further, the holding arm 28 is configured to be able to reciprocate from the second position S2 to the third position S3 which has advanced to the downstream side of the transport path A1 by the operation of the air cylinder 38 in a rearward rising state. Reciprocating operation and up and down reciprocating operation. That is, the holding arm 28 descends when moving forward and rises when moving backward.

The holding arm 28 retracts to the outside of the slit passage 32 at the first position S1 to allow the filling port portion 5 to move downstream. At the first position S1 and the second position S2, the holding arm 28 is located slightly above the guide rail 31, and interference with the guide rail 31 due to rotation is avoided.

The holding arm 28 moves downstream and downward by the forward movement from the second position S2 to the third position S3 in the slit passage 32, so that the holding arm 28 enters between the pair of annular ribs 5a and engages with the annular rib 5a. do.

The holding arm 28 has a function of sending the filling port 5 to the downstream side by moving to the downstream side in a state of being engaged with the filling port 5 of the bag row 3A before the filling process. That is, when moving from the second position S2 to the third position S3, the holding arm 28 presses the region on the upstream side of the outer periphery of the filling port 5 toward the downstream side in the slit passage 32 of the transport rail 26. At the forward and downward third position S3, the holding arm 28 engages with the annular rib 5a at the same height as the holder part 29 to hold the filling port 5. The holding arm 28 has a function of supporting a part of the periphery of the filling port 5 during filling by staying at a position engaged with the filling port 5 of the bag row 3A during filling.

The holder part 29 is supported above the filling table 23 at the filling position P2.

The holder part 29 is arranged to face the downstream end of the transport rail 26 and supports the downstream portion of the filling port 5. The holder part 29 is configured in a U shape that opens on the upstream side of the transport path A1. The holder part 29 has an arcuate opening edge 29a configured to be engageable with the annular rib 5a. The holder part 29 has a width dimension into which the filling port portion 5 can be inserted, similarly to the slit passage 32.

The holder part 29 is configured to be rotatable at a support position arranged in the transport path A1 and a retracted position retracted outside the transport path A1. The holder parts 29 are arranged to face each other in the transport path A1 of the transport rail 26 at the support position. At the support position, the annular rib 5a engages with the opening edge 29a of the holder part 29, and a part of the filling port 5 is held. The outer circumference of the filling port 5 is sandwiched at the filling position P2 by the holder part 29 on the downstream side and the holding arm 28 on the upstream side. Further, the holder parts 29 are arranged at a retracted position that does not hinder the movement of the bag row 3A after the filling process. For example, it is desirable that 90% or more of the outer circumference of the filling port 5 is pressed by the opening edge 29a of the holder part 29 and the tip edge 28a of the holding arm 28. About 99% of the total length of the outer circumference of the filling port 5 is held by the tip edge 28a.

The filling table 23 is arranged below the bag row 3A in which the filling port portion 5 is arranged upward at the filling position P2, and is configured to be movable downward according to the filling amount during the filling process. The filling table 23 is arranged adjacent to the downstream side of the pressing pad 27, and includes a plurality of rotating rollers 23a having a rotating shaft extending along the width direction, and a support member 23b for supporting the plurality of rotating rollers 23a. The plurality of rotating rollers 23a are arranged horizontally in parallel. A horizontal support base is formed by the plurality of rotating rollers 23a, and a horizontal transport path A1 is formed on the upper surface thereof. The rotary roller 23a is driven to rotate by the feed movement of the bag row 3A by the feed force of the drive roller 24. The support member 23b supports both ends of the rotating shafts of the plurality of rotating rollers 23a. The support member 23b is configured to be movable up and down, and therefore the filling table 23 is configured to be movable up and down.

The operating conditions of the filling table 23 are set according to the amount of change in the thickness dimension of the flexible bag 3 before and after the filling process. For example, the filling table 23 is lowered according to the amount of increase in thickness during the filling process so that the height position of the filling port 5 of the flexible bag 3 does not change before and after the filling process. That is, the lower surface position of the flat and small thickness flexible bag 3 sent horizontally from the roll support portion 21 is displaced downward according to the swelling of the flexible bag 3 during filling when the nozzle is fixed. The support surface of the filling table 23 is lowered according to the amount of displacement.

The drive roller 24 has a rotation axis extending in the width direction orthogonal to the transport path A1 on the downstream side of the filling position P2. The rotation shaft of the drive roller 24 is connected to the motor and is rotationally driven at a predetermined timing to give a force to send the bag row 3A downstream. Before the filling process, the rotation of the drive roller 24 pulls the downstream side of the filling position P2 of the bag row 3A held by the holding pad 27 to the downstream side along the transport path A1 to drive the holding pad 27. Tension is applied to the bag row 3A with the roller 24, and the flexible bag 3 is set in a flat posture.

The filling mechanism 30 includes a tank 35 holding the content C1, a filling nozzle 36 communicating with the tank 35, and a capping mechanism 37 for attaching and detaching a cap.

The filling nozzle 36 is configured to be movable up and down at a lowering position inserted into the filling port 5 and an ascending position retracted from the filling port 5. The filling nozzle 36 is arranged to face the filling port 5 of the flexible bag 3 supported on the transport path A1. The filling nozzle 36 is inserted into the filling port 5 after the opening process by lowering. An opening / closing valve capable of opening / closing the flow path is provided at the tip of the filling nozzle 36. By opening the open / close valve of the filling nozzle 36 with the filling nozzle 36 inserted into the filling port 5 at the lowered position, the filling process of injecting the contents C1 into the flexible bag 3 through the filling port 5 is performed.

The capping mechanism 37 includes a holding mechanism for holding the cap 6 and a rotating mechanism for rotating the holding mechanism. The capping mechanism 37 is opened by rotating the cap 6 in the forward direction to remove the cap 6 attached to the filling port 5, and rotating the cap 6 in the reverse direction while holding the cap 6. It is configured so that the cap 6 can be closed by attaching the cap 6 to the filling port 5 after the filling process.

The cutting mechanism 40 is provided on the downstream side of the filling mechanism 30. The cutting mechanism 40 includes a cutting table 25 and a cutter 41 provided above the cutting table 25 and configured to be able to move up and down at the cutting position P3.

The cutting table 25 has the same height as the filling table 23 and is provided adjacent to the downstream side of the filling table 23. The cutting table 25 is arranged adjacent to the downstream side of the drive roller 24, and includes a plurality of rotary rollers 23a whose rotary shafts extend along the width direction, and a support member 25b that supports the plurality of rotary rollers 23a. The plurality of rotating rollers 25a are arranged horizontally in parallel. A horizontal support base is formed by the plurality of rotating rollers 25a, and a horizontal transport path A1 is formed on the upper surface thereof. The rotary roller 25a is driven to rotate by the feed movement of the bag row 3A by the feed force of the drive roller 24. The support member 25b rotatably supports both ends of the rotating shafts of the plurality of rotating rollers 25a.

On the downstream side of the cutting table 25, a storage mechanism 60 in which the exterior boxes 2 having an opening on the upper side are arranged is provided. At the accommodating position, the individual flexible bags 3 that have undergone the filling process and the cutting process are sequentially dropped and accommodated in the standby outer box 2.

Hereinafter, a method of manufacturing the bag and the bag-in-box 4 using the bag-in-box 4 manufacturing apparatus 1 will be described with reference to FIGS. 3 to 6. The method for manufacturing the bag-in-box 4 according to the present embodiment includes a transport process for sending the bag row 3A to the downstream side, a filling process for filling the target bag with the contents C1 while holding the bag row 3A, and a bag row. A cutting process for separating the 3A into each flexible bag 3 and a storage process for accommodating the flexible bag 3 in the outer box 2 are provided.

Specifically, when the transport mechanism 20 is driven by the control of the control unit 50, the drive roller 24 rotates, so that the bag row 3A is sent downstream. By this feeding force, that is, the force pulling to the downstream side, the roll support portion 21 at the supply position P1 sequentially unwinds and supplies the bag row 3A by rotating the support shaft 21a.

The flexible bag 3 unwound from the roll support portion 21 and supplied downstream is sent to the filling position P2 along the horizontal transport path A1. At this time, the pair of guide rails 31 supported at a predetermined height keeps the filling port 5 with the cap 6 of the bag row 3A at a predetermined height, and the moving direction of the filling port 5 is the transport path A1. You will be guided along.

As an example of the transport process, as shown in FIG. 4, in ST1, the holding arm 28 is in the second position S2 in the slit passage 32, and the holder part 29 is in the support position. When the control unit 50 rotates and moves the holder part 29 to the retracted position from the state of ST1, the bag row 3A can be moved downstream (ST2). In the state of ST2, each flexible bag 3 moves downstream by the feed movement of the bag row 3A. Then, the holding arm 28 is pressed by the filling port portion 5 moving from the upstream side to temporarily rotate against the urging force of the urging member, and the slit passage which is the path of the filling port portion 5. It is retracted to the first position S1 outside the 32 (ST3). At this time, the control unit 50 again arranges the holder part 29 at the support position. After that, when the holding arm 28 is overcome by the movement of the filling port portion 5, the holding arm 28 is restored to the second position S2 in the slit passage 32 by the restoring force of the urging member (ST4). Further, when the holding arm 28 is moved forward in the transport path A1 by the control unit 50, the holding arm 28 descends with advancing along the rearward ascending path, and descends in a state of being engaged with the filling port portion 5. By being fed, the holding arm 28 is arranged at the third position S3 and the filling port portion 5 is moved to the filling position P2 (ST5). Even after the filling port portion 5 is moved to the filling position P2, the holding arm 28 stays at the third position S3 while being engaged with the annular rib 5a until the filling process is completed, and keeps the state of ST5 at the filling position P2. By maintaining it, the filling port 5 is fixed.

As shown in FIG. 6, when the filling port 5 of the target flexible bag 3 reaches the filling position P2, the filling process is started. Specifically, the holding pad 27 is raised by the control of the control unit 50, and the flexible bag 3 is sandwiched between the holding pad 27 and the transport rail 26. Further, the control unit 50 gives tension by feeding the drive roller 24 in the feeding direction, and stably holds the flexible bag 3 in a horizontal posture.

After the positioning is completed, the control unit 50 drives the capping mechanism 37 to perform the cap opening process (ST6). Specifically, the cap 6 is removed by driving the capping mechanism 37, grasping and rotating the cap 6.

Then, the control unit 50 lowers the filling nozzle 36 and inserts it into the filling port 5 (ST7). Then, by opening the open / close valve arranged on the filling nozzle 36, the liquid injection process is performed and the position is adjusted while lowering the filling table 23. Specifically, as shown in FIG. 3, the control unit 50 fixes the position of the filling nozzle 36 by lowering the filling table 23 at a speed corresponding to the flow rate filled in the flexible bag 3, and fixes the liquid. Prevents misalignment due to increased amount.

When the injection of a predetermined amount of liquid is completed, the control unit 50 raises the filling nozzle 36 and retracts it from the filling port portion 5. At this time, the amount of the liquid is set to the amount that reaches the cap 6 arranged upward, and the amount of the liquid is set so that air bubbles do not mix into the inside of the bag. Since the flexible bag 3 is stably held in a horizontal posture, it is possible to prevent air bubbles from being mixed into the bag portion inside the flexible bag 3 as compared with the cap 6.

After the filling process is completed, the capping mechanism 37 is driven to perform the plugging process. Specifically, the cap 6 removed by the cap opening process is put on the filling port 5 by the capping mechanism 37 and rotated to return to the state of ST5 in FIG. 6 by attaching the cap 6.

After the closing process, the flexible bag 3 is sent downstream toward the cutting position P3 by rotating the drive roller 24 of the transport mechanism 20 in a state where the holding of the bag row 3A is released. Along with this feeding operation, the next flexible bag is conveyed from the upstream side to the filling position P2.

On the other hand, when the flexible bag 3 reaches the cutting position P3, the cutting mechanism 40 is driven to lower the cutter 41 to cut a predetermined position between the adjacent flexible bags 3 by the cutter 41. At this time, since the flexible bag 3 is stably held on the cutting table 25 in a horizontal posture, the bending deformation of the flexible bag 3 is suppressed, and the cutting position P3 can be accurately defined.

The flexible bag 3 after cutting is sent further downstream by rotating the drive motor of the transport mechanism 20 in a state where the holding of the bag row 3A is released, and inside the exterior box 2 which has been waiting by the accommodating mechanism 60. Is housed in.

As described above, the flexible bag 3 sequentially sent from the upstream is repeatedly subjected to the processes of positioning, opening, filling, closing, cutting, and accommodating. When the filling process and the closing process for the predetermined number of flexible bags 3 that are sequentially sent are completed, the holding arm 28 is retracted and moved to the retracted position as shown in ST8 of FIG. 5, and the holder part 29 is rotated. Move it to the retracted position. Further, by lowering the holding pad 27, the holding of the bag row 3A is released, and the process is completed.

According to the manufacturing apparatus 1 and the manufacturing method of the bag and the bag-in-box 4 according to the present embodiment, the following effects can be obtained. That is, the holding mechanism can stabilize the behavior of the flexible bag 3 and prevent dripping and splashing during filling. Further, since the holding arm 28 for holding the flexible bag 3 is provided in the opening of the holder part 29, the closing process can be performed with high accuracy by the configuration of holding the entire circumference of the filling port portion 5. Further, since the entire circumference of the filling port portion 5 is held, the cap 6 can be reliably plugged horizontally with respect to the annular rib 5a and the holder part 29.

Further, in the above embodiment, the height position of the filling port 5 can be stabilized by providing the filling table 23 that moves up and down in response to the change in the height dimension due to the filling process. Therefore, the filling table 23 descends while filling the flexible bag 3, so that the liquid level height of the filling port 5 can be made constant and the residual air can be reduced.

In the filling device 10, since the fixed amount feed is performed on the horizontal transport path A1, the position and posture of the flexible bag 3 can be easily defined as compared with the configuration in which the weight feed is performed on the inclined path, so that the accuracy of various processes can be improved. Can be improved. For example, by stabilizing the posture of the bag in the filling process, it is possible to prevent dripping and splashing in the filling process. In addition, the stability of the cutting position P3 can be achieved in the cutting process. Furthermore, the plug body can be mounted straight.

The present invention is not limited to the above embodiment. In the above embodiment, as an example of the method of manufacturing a bag, a method of manufacturing a bag in which the contents are filled in the flexible bag 3 as the inner bag of the bag-in-box 4 has been illustrated, but the present invention is not limited to this. For example, it can be applied to a filling process for a continuous pouch in which a film-type bag with a spout is connected through a perforation.

Further, the pressing pad 27 that presses the holding portion from the bottom toward the upper guide rail 31 has been illustrated, but the present invention is not limited to this. For example, it may be pressed against a member provided from the top to the bottom, or may be sandwiched between a pair of opposing members.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention. Further, the specific configuration, material, and the like of each part are not limited to those illustrated in the above embodiment, and can be changed as appropriate.
The inventions described in the claims of the original application of the present application are described below.
(1) A transport unit that feeds a row of bags including a plurality of bags having a filling port in a row along a predetermined transport path.
A filling portion for injecting the contents into the bag in the bag row at the filling position of the transport path through the filling port is provided.
The transport unit imparts a holding unit that holds the bag row on the upstream side of the filling position of the transport path and a force that sends the bag row downstream on the downstream side of the filling position of the transport path. A filling device including a feed section.
(2)
The holding portion includes a transport rail arranged along the transport path and a holding pad that sandwiches the bag row between the transport rails and presses the bag row toward the transport rail side. (1) The filling device according to the above.
(3)
The filling table according to (1), wherein the filling port is arranged below the bag row arranged upward at the filling position, and is provided with a filling table configured to be lowered according to the filling amount during the filling process. Filling device.
(4)
The transport rail is arranged on the bag row and has a passage configured so that the filling port arranged upward can pass through.
The holding portion includes a pressing member that presses a portion on the upstream side of the filling port toward the downstream side in the passage of the transport rail.
A receiving member arranged at the filling position and supporting a portion on the downstream side of the filling port,
The filling device according to (2).
(5)
At the cutting position on the downstream side of the filling position, a cutting portion for cutting the boundary between adjacent bags in the bag row is provided.
The filling portion is configured to be insertable into the filling port after the opening process, and is attached to a filling nozzle for injecting the contents into the bag and a filling port of each bag in the bag row sent from the upstream. The filling device according to (1), comprising a capping mechanism for removing the cap and attaching the cap to the filling port after the filling process.
(6)
The filling device according to any one of (1) to (5) and
A bag-in-box manufacturing apparatus comprising a storage mechanism for accommodating the bag filled with contents in an outer box.
(7)
A transport process in which a row of bags in which a plurality of empty bags having a filling port are connected is sent along a predetermined transport path, and a transport process.
While holding the bag row on the upstream side of the filling position on the transport path, giving a feeding force to send the bag row downstream on the downstream side of the filling position, and filling the bag with the contents. With filling process,
A cutting process in which a row of bags is cut at a cutting position provided on the downstream side of the filling position and the bags are separated from each other.
A method of manufacturing a bag.

1 ... Manufacturing equipment, 2 ... Exterior box, 3 ... Flexible bag, 3A ... Bag row, 4 ... Bag-in-box, 5 ... Filling port (filling port), 5a ... Circular rib, 6 ... Cap, 10 ... Filling device, 20 ... Conveying mechanism, 21 ... Roll support part, 21a ... Support shaft, 22 ... Holding part, 23 ... Filling table, 23a ... Rotating roller, 23b ... Support member, 24 ... Drive roller, 25 ... Cutting table, 25a ... Rotating roller , 25b ... Support member, 26 ... Conveyance rail, 27 ... Holding pad, 28 ... Holding arm, 28a ... Tip edge, 29 ... Holder parts, 29a ... Opening edge, 30 ... Filling mechanism, 31 ... Guide rail, 32 ... Slit passage , 35 ... tank, 36 ... filling nozzle, 37 ... capping mechanism, 40 ... cutting mechanism, 41 ... cutter, 50 ... control unit, 60 ... accommodating mechanism, A1 ... transport path, C1 ... contents, P1 ... supply position, P2 ... Filling position, P3 ... Cutting position.

Claims (5)

A transport unit that feeds a row of bags including a plurality of bags having a filling port along a predetermined transport path, and a transport unit.
A filling portion for injecting the contents into the bag in the bag row at the filling position of the transport path through the filling port is provided.
The transport unit is located at a holding portion that holds the bag row on the upstream side of the filling position of the transport path and on the downstream side of the filling position of the transport path of the bag row sandwiched by the holding portion . A feeding unit for giving a force to feed the bag row downstream is provided .
The holding portion is a pressing position for pressing the bag row toward the transport rail side with the bag row sandwiched between the transport rail arranged along the transport path and the bag row. A filling device including a holding pad configured to be movable at a retracted position that allows the movement of the. The first aspect of the present invention, wherein the filling port is arranged on the lower side of the bag row arranged upward at the filling position, and the filling table is provided so as to be lowered according to the filling amount during the filling process. Filling device. The transport rail is arranged on the bag row and has a passage configured so that the filling port arranged upward can pass through.
The holding portion includes a pressing member that presses a portion on the upstream side of the filling port toward the downstream side in the passage of the transport rail.
A receiving member arranged at the filling position and supporting a portion on the downstream side of the filling port,
The filling device according to claim 1. At the cutting position on the downstream side of the filling position, a cutting portion for cutting the boundary between adjacent bags in the bag row is provided.
The filling portion is configured to be insertable into the filling port after the opening process, and is attached to a filling nozzle for injecting the contents into the bag and a filling port of each bag in the bag row sent from the upstream. The filling device according to claim 1, further comprising a capping mechanism for removing the cap and attaching the cap to the filling port after the filling process. The filling device according to any one of claims 1 to 4,
A bag-in-box manufacturing apparatus comprising a storage mechanism for accommodating the bag filled with contents in an outer box.

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