JP2018052582A - Filling device, device for manufacturing bag-in-box, and method for manufacturing bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling device which can improve processing accuracy, a device for manufacturing a bag-in-box, and a method for manufacturing a bag-in-box.SOLUTION: A filling device comprises a transport part which feeds a bag row, which includes continued plural bags having a filling port, along a prescribed transport path, and a filling part which pours a content into the bag of the bag row positioned at a filling position on the transport path through the filling port. The transport part comprises a holding part including a pressing member which presses a portion of the filling port on an upstream side toward the filling position along the transport path, and a bearing member which supports a portion of the filling port on a downstream side at the filling position.SELECTED DRAWING: Figure 1

Description

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

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

  It is known that a bag-in-box manufacturing apparatus includes a conveyance path that is inclined so that the downstream side descends, and the flexible bag filled with the contents conveys the bag row by a force that moves downstream due to its own weight. (For example, refer to Patent Document 1).

JP-A-6-135403

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

  Then, an object of this invention is to provide the filling apparatus which can improve a processing precision, the manufacturing apparatus of a bag in box, and the manufacturing method of a bag.

A filling device according to an aspect of the present invention includes a transport unit that sends a bag row including a plurality of flexible bags having a filling port along a predetermined transport path, and the bag row at a filling position of the transport path. A filling portion for injecting contents into the bag through the filling port,
The transport unit includes a pressing member that presses a portion upstream of the filling port toward the filling position along the transport path, and a receiving member that supports a portion downstream of the filling port at the filling position. And a holding part provided with.

  ADVANTAGE OF THE INVENTION According to this invention, the filling apparatus which can improve a process filling precision, the manufacturing apparatus of a bag in box, and the manufacturing method of a bag can be provided.

The side view of the filling apparatus concerning embodiment of this invention. The top view of the filling apparatus. Explanatory drawing which shows the structure of the manufacturing apparatus of the bag in box concerning embodiment. Explanatory drawing which shows operation | movement of the holding mechanism in the manufacturing apparatus of the bag in box. Explanatory drawing which shows operation | movement 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, a filling device 10, a bag-in-box 4 manufacturing device 1, and a bag-in-box 4 manufacturing method according to embodiments of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a side view of a filling apparatus 10 according to the present embodiment, and FIG. 2 is a plan view. FIG. 3 is an explanatory diagram showing the configuration of the manufacturing apparatus 1 for the bag-in-box 4, and FIGS. 4 and 5 are explanatory diagrams showing the configuration of the holding mechanism. FIG. 6 is an explanatory view showing a method for manufacturing the bag-in-box 4. In the figure, arrows X, Y, and Z indicate three directions orthogonal to each other. In each figure, the structure is appropriately enlarged, reduced, or omitted for explanation.

  A 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 that is a bag as an inner bag is housed in an exterior box 2 made of cardboard, for example. This is a device for filling the contents C <b> 1 in the flexible bag 3 having the part 5.

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

  As shown in FIG. 4, a male screw portion that is 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. A plurality of annular ribs 5a projecting outward are provided on the outer peripheral surface of the base end portion of the filling port portion 5 as engaging portions having uneven portions. The annular rib 5 a is formed so as to be able to engage with a guide rail 31 as a holding mechanism, a holding arm 28, and a holder part 29. The flexible bag 3 is transported along the transport path A1 as a bag row 3A configured by connecting a plurality of flexible bags 3 with the respective filling port portions 5 arranged upward. A perforation 3a is formed in the cut line at the boundary between adjacent flexible bags 3 in the bag row 3A.

  The filling device 10 includes a conveyance mechanism 20 that is a conveyance unit that sends the bag row 3A along a predetermined conveyance path A1, and a filling mechanism that is a filling unit that sequentially injects the contents C1 into the empty flexible bags 3 in the bag row 3A. 30, a cutting mechanism 40 that is a cutting unit that cuts and separates the bag row 3 </ b> A, and a control unit 50 that controls the operation of each unit.

  The conveyance path A1 is a path that sequentially passes from the supply position P1 where the bag row 3A is supported in a roll shape, through the filling position P2 where the filling process is performed, and to the cutting position P3 where the cutting process is performed. For example, a storage mechanism 60 is provided on the downstream side of the cutting position P3 of the transport path A1. For example, the housing mechanism 60 sequentially sets the exterior box 2 at the standby position with the top opened, puts the cut bag into the exterior box 2, and carries out the exterior box 2.

  The transport mechanism 20 includes a roll support unit 21 as a supply unit, a holding unit 22, a filling table 23, a driving roller 24 as a feeding unit, 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 at 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 unit 22 includes a conveyance rail 26 arranged along the conveyance path A1, a pressing pad 27, a holding arm 28 that is a pressing member, and a holder part 29 that is a receiving member.

  The transport rail 26 is disposed horizontally from the supply position P1 through the filling position P2 to the cutting position P3. The transport rail 26 defines a horizontal transport path A1.

  The transport rail 26 includes a pair of guide rails 31 extending along the transport path A <b> 1, 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 disposed on the upper side of 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 side portions of the filling port portion 5 and are configured to be engageable with an annular rib 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 certain 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 made of a fluororesin (Teflon (registered trademark) / PTFE) or urethane / rubber / sponge / felt and extending in the width direction. The pressing pad 27 extends 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 retracted position.

  The pressing pad 27 abuts 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 conveying rail 26, so that the bag row 3 A is connected to the conveying rail 26. To prevent misalignment. The pressing pad 27 is retracted to the lower retracted position, so that it is moved downward from the bag row 3A and allows the bag row 3A to move.

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

  The holding arm 28 is configured to be rotatable about a predetermined rotation axis, and is a first position S1 retracted to the outside of the slit passage 32, and a second position S2 at least a tip portion of which is disposed in the slit passage 32. It is comprised so that rotation is possible. For example, the holding arm 28 is disposed at the second position S2 in the free state, is turned toward the first position S1 by the movement of the filling port portion 5, and can be rotated. It is biased in the direction returning to the second position S2.

  Further, the holding arm 28 is configured to be capable of reciprocating back and forth between the second position S2 and the third position S3 that has advanced downstream from the transport path A1 by the operation of the air cylinder 38. Reciprocating movement and up and down reciprocating movement. That is, the holding arm 28 descends when moving forward and rises when moving backward.

  The holding arm 28 retreats to the outside of the slit passage 32 at the first position S1, thereby allowing the filling port portion 5 to move downstream. In the first position S1 and the second position S2, the holding arm 28 is positioned 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 in the slit passage 32 by the forward movement from the second position S2 to the third position S3, thereby entering between the pair of annular ribs 5a and engaging with the annular ribs 5a. To do.

  The holding arm 28 has a function of sending the filling port portion 5 to the downstream side by moving to the downstream side in a state of being engaged with the filling port portion 5 of the bag row 3A before the filling process. That is, when moving from the second position S <b> 2 to the third position S <b> 3, the holding arm 28 presses the upstream region of the outer periphery of the filling port portion 5 toward the downstream side by the slit passage 32 of the transport rail 26. In the third position S3 that is advanced and lowered, the holding arm 28 is engaged with the annular rib 5a at the same height as the holder part 29, and holds the filling port portion 5. The holding arm 28 has a function of supporting a part of the periphery of the filling port portion 5 being filled by staying at a position engaged with the filling port portion 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 disposed to face the downstream end portion of the transport rail 26 and supports a downstream portion of the filling port portion 5. The holder part 29 is configured in a U shape that opens to 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 in which the filling port portion 5 can be inserted, similarly to the slit passage 32.

  The holder part 29 is configured to be rotatable between a support position disposed in the transport path A1 and a retracted position for retracting outside the transport path A1. The holder part 29 is disposed opposite to the end of the transport path A1 of the transport rail 26 at the support position. The annular rib 5a is engaged with the opening edge 29a of the holder part 29 at the support position, and a part of the filling port portion 5 is held. The holder part 29 on the downstream side and the holding arm 28 on the upstream side sandwich the outer periphery of the filling port 5 at the filling position P2. Further, the holder part 29 is disposed at a retracted position that does not hinder the movement of the bag row 3A after the filling process. For example, it is desirable to hold down 90% or more of the outer periphery of the filling port 5 by the opening edge 29a of the holder part 29 and the tip edge 28a of the holding arm 28. In this embodiment, the arcuate opening edge 29a and the arcuate edge About 99% of the total length of the outer periphery of the filling port portion 5 is held by the tip edge 28a.

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

  The operating condition of the filling table 23 is 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 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 position of the lower surface of the flat and thin flexible bag 3 sent horizontally from the roll support portion 21 is displaced downward according to the bulge of the flexible bag 3 being filled 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 shaft extending in the width direction orthogonal to the transport path A1 on the downstream side of the filling position P2. The rotating shaft of the driving roller 24 is connected to a motor and is driven to rotate at a predetermined timing, thereby applying a force for sending the bag row 3A downstream. By the rotation of the driving roller 24, the downstream side of the bag row 3 </ b> A held by the pressing pad 27 is pulled downstream along the transport path A <b> 1 by the rotation of the driving roller 24, thereby driving the pressing pad 27. Tension is applied to the bag row 3A between the roller 24 and the flexible bag 3 is set in a flat posture.

  The filling mechanism 30 includes a tank 35 that holds the contents C1, a filling nozzle 36 that communicates with the tank 35, and a capping mechanism 37 that attaches and removes the cap.

  The filling nozzle 36 is configured to be movable up and down between a lowered position inserted into the filling port portion 5 and a raised position retracted from the filling port portion 5. The filling nozzle 36 is disposed opposite to the filling port portion 5 of the flexible bag 3 supported on the transport path A1. The filling nozzle 36 is lowered and inserted into the filling port portion 5 after the plug opening process. An opening / closing valve capable of opening and closing the flow path is provided at the tip of the filling nozzle 36. A filling process for injecting the contents C1 into the flexible bag 3 through the filling port 5 is performed by opening the opening / closing valve of the filling nozzle 36 with the filling nozzle 36 inserted into the filling port 5 at the lowered position.

  The capping mechanism 37 includes a holding mechanism that holds the cap 6 and a rotation mechanism that rotates the holding mechanism. The capping mechanism 37 rotates in the forward direction while holding the cap 6 to remove the cap 6 attached to the filling port 5 and rotates it in the opposite direction while holding the cap 6. A capping process for attaching the cap 6 to the filling port 5 after the filling process is possible.

  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 that is provided above the cutting table 25 and configured to be movable 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 disposed adjacent to the downstream side of the driving roller 24, and includes a plurality of rotating rollers 23a whose rotating shaft extends in the width direction, and a support member 25b that supports the plurality of rotating rollers 23a. The plurality of rotating rollers 25a are horizontally arranged in parallel. A plurality of rotating rollers 25a constitute a horizontal support base, and a horizontal conveyance path A1 is formed on the upper surface thereof. The rotating roller 25a is driven and rotated by the feeding movement of the bag row 3A by the feeding force of the driving roller 24, respectively. The support member 25b rotatably supports both ends of the rotation shafts of the plurality of rotation rollers 25a.

  On the downstream side of the cutting table 25, an accommodation mechanism 60 in which the exterior box 2 having an upper opening is arranged is provided. At the storage position, the individual flexible bags 3 that have been subjected to the filling process and the cutting process are sequentially dropped and stored in the waiting exterior box 2.

  Hereinafter, a bag and a method for manufacturing the bag-in-box 4 using the bag-in-box 4 manufacturing apparatus 1 will be described with reference to FIGS. The manufacturing method of the bag-in-box 4 according to the present embodiment includes a conveying process for sending the bag row 3A downstream, a filling process for filling the target bag with the contents C1 while holding the bag row 3A, and a bag row. The cutting process which cut | disconnects 3A for every flexible bag 3, and the accommodation process which accommodates the flexible bag 3 in the exterior box 2 are provided.

  Specifically, when the transport mechanism 20 is driven under the control of the control unit 50, the driving roller 24 rotates to send the bag row 3A downstream. By this feed force, that is, the force pulling downstream, the roll support portion 21 at the supply position P1 sequentially unwinds and supplies the bag row 3A as the support shaft 21a rotates.

  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 hold the filling port portion 5 with the cap 6 of the bag row 3A at a predetermined height, and the moving direction of the filling port portion 5 depends on the transport path A1. Will be guided along.

  As an example of the conveying 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. The holding arm 28 is temporarily turned against the urging force of the urging member by being pressed by the filling port portion 5 that moves from the upstream side, and is a slit passage that is a path of the filling port portion 5. It is retracted to the first position S1 outside 32 (ST3). At this time, the controller 50 again places the holder part 29 at the support position. Thereafter, when the holding arm 28 is overcome by the movement of the filling port 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 is lowered along with the rearward rising path and is moved downstream in a state of being engaged with the filling port 5. By being sent, the holding arm 28 is arranged at the third position S3 and the filling port 5 is moved to the filling position P2 (ST5). The holding arm 28 remains in the third position S3 while engaging with the annular rib 5a until the filling process is completed even after the filling port 5 is moved to the filling position P2, and the state of ST5 in the filling position P2 is maintained. By maintaining it, the filling port 5 is fixed.

  As shown in FIG. 6, when the filling port portion 5 of the target flexible bag 3 reaches the filling position P2, the filling process is started. Specifically, under the control of the control unit 50, the pressing pad 27 is raised and the flexible bag 3 is held between the conveyance rail 26. Furthermore, the control part 50 gives tension | tensile_strength by sending the drive roller 24 to a sending direction, and hold | maintains the flexible bag 3 stably in a horizontal attitude | position.

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

  Next, the controller 50 lowers the filling nozzle 36 and inserts it into the filling port 5 (ST7). Then, by opening an on-off valve disposed on the filling nozzle 36, liquid injection processing is performed, and position adjustment is performed while the filling table 23 is lowered. Specifically, as shown in FIG. 3, the control unit 50 lowers the filling table 23 at a speed corresponding to the flow rate filled in the flexible bag 3, thereby fixing the position of the filling nozzle 36. Prevents misalignment due to increased amount.

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

  After completion of the filling process, the capping mechanism 37 is driven to perform a plugging process. Specifically, the cap 6 removed by the capping mechanism 37 is put on the filling port portion 5 and rotated by the capping mechanism 37, so that the cap 6 is attached and the state returns to ST5 in FIG.

  After the closing process, the driving roller 24 of the transport mechanism 20 is rotated in the state where the holding of the bag row 3A is released, thereby sending the flexible bag 3 toward the cutting position P3 downstream as shown in FIG. 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, whereby the predetermined position between the adjacent flexible bags 3 is cut by the cutter 41. At this time, since the flexible bag 3 is stably held in a horizontal posture on the cutting table 25, the bending deformation of the flexible bag 3 is suppressed, and the cutting position P3 can be accurately defined.

  When the flexible bag 3 after cutting is released from the holding of the bag row 3A, by rotating the drive motor of the transport mechanism 20, the flexible bag 3 is sent further downstream, and the inside of the exterior box 2 that is waiting by the storage mechanism 60 Is housed in.

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

  According to the manufacturing apparatus 1 and the manufacturing method of the bag and 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 or splashing during filling. In addition, since the holding arm 28 that holds the flexible bag 3 is provided in the opening of the holder part 29, the plugging process can be performed with high accuracy by the configuration that holds 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 5 a and the holder part 29.

  Moreover, in the said embodiment, the height position of the filling port part 5 can be stabilized by providing the filling table 23 which raises / lowers according to the change of the height dimension by a filling process. For this reason, the filling table 23 descends while filling the flexible bag 3, and the liquid level of the filling port 5 can be made constant to reduce the remaining air.

  In the filling device 10, since the fixed amount feeding is performed in the horizontal conveyance path A1, the position and posture of the flexible bag 3 can be easily defined as compared with the configuration in which the weight feeding is performed in the inclined path. It can be improved. For example, dripping or splashing of the filling process can be prevented by stabilizing the posture of the bag in the filling process. In addition, the stability of the cutting position P3 can be achieved in the cutting process. Furthermore, it becomes possible to attach the plug body straight.

  The present invention is not limited to the above embodiment. In the said embodiment, although the manufacturing method of the bag which fills the contents into the flexible bag 3 as an inner bag of the bag in box 4 was illustrated as an example of the manufacturing method of a bag, it is not restricted to this. For example, the present invention can be applied to a filling process for a continuous pouch in which a bag with a film-type stopper is connected through a perforation.

  Further, although the holding pad 27 that presses from the bottom toward the upper guide rail 31 is illustrated as the holding portion, the holding pad is not limited thereto. For example, you may press against the member provided below from the top, and it is good also as a structure clamped with a pair of opposing member.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. In addition, the specific configuration, material, and the like of each unit are not limited to those illustrated in the above embodiment, and can be changed as appropriate.

  DESCRIPTION OF SYMBOLS 1 ... Manufacturing apparatus, 2 ... Outer box, 3 ... Flexible bag, 3A ... Bag row, 4 ... Bag in box, 5 ... Filling port part (filling port), 5a ... Annular rib, 6 ... Cap, 10 ... Filling device, DESCRIPTION OF SYMBOLS 20 ... Conveyance 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 ... conveying rail, 27 ... pressing pad, 28 ... holding arm, 28a ... tip edge, 29 ... holder part, 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 ... storage mechanism, A1 ... transport path, C1 Contents, P1 ... supply position, P2 ... filling position, P3 ... cutting position.

Claims (8)

A transport unit that sends a bag row including a plurality of bags having a filling port along a predetermined transport path; and
A filling portion for injecting contents through the filling port into the bags in the bag row at the filling position of the transport path,
The transport unit includes a pressing member that presses a portion upstream of the filling port toward the filling position along the transport path, and a receiving member that supports a portion downstream of the filling port at the filling position. And a holding device. The transport unit includes a transport rail that is disposed on the bag row and includes a passage configured to allow the filling port disposed upward to pass therethrough,
The pressing member is configured to be movable between a first position retracted out of the passage and a second position in the passage, and is configured to be movable along the transport path in the passage.
The filling device according to claim 1, wherein an outer periphery of the filling port at the filling position is sandwiched between the receiving member and the pressing member.   The filling device according to claim 2, wherein the receiving member is movable between a support position for supporting the filling port in the transport path and a retreat position for retracting from the passage of the filling port. The filling port is configured in a cylindrical shape and includes an engaging portion having an uneven portion on the outer periphery,
The transport rail includes a pair of guide rails that are arranged on both sides of the filling port with the passage interposed therebetween, and are configured to be engageable with the engaging portion.
The receiving member is disposed opposite to the downstream end of the transport rail, has an arc-shaped opening edge configured to be open on the upstream side of the transport path and engage with the uneven portion,
The filling device according to claim 3, wherein the pressing member has a leading edge configured to be engageable with the uneven portion. The holding portion includes a pressing pad that presses the bag row toward the conveyance rail with the bag row interposed between the conveyance rail and the conveyance portion from the filling position of the conveyance path. A holding unit that holds the bag row on the upstream side, and a feeding unit that applies a force to send the bag row downstream on the downstream side of the filling position of the transport path,
The transport path from the holding part through the filling position to the feeding part is horizontal,
In the cutting position downstream of the filling position, provided with a cutting portion for cutting the boundary portion between adjacent bags in the bag row,
The filling portion is configured to be inserted into the filling port after the opening process, and is attached to a filling nozzle for injecting contents into the bag and a filling port of each bag in the bag row sent from the upstream side. And a capping mechanism for removing the cap and attaching the cap to the filling port after the filling process. A filling device according to any one of claims 1 to 5,
A bag-in-box manufacturing apparatus comprising: a storage mechanism that stores the bag filled with contents in an exterior box. Sending a bag row of a plurality of empty bags having a filling port along a predetermined transport path;
Moving the pressing member from the upstream side to the downstream side of the filling position on the transport path, and pressing the filling port toward the receiving member disposed on the downstream side;
Filling the bag with contents while holding the filling port at the filling position by the pressing member and the receiving member;
A bag manufacturing method comprising: cutting a bag row at a cutting position provided on a downstream side of a filling position and cutting the bag for each bag. The pressing member is retracted from the passage of the filling port after completion of the filling,
The bag manufacturing method according to claim 7, wherein the receiving member is retracted from the passage of the filling port after the filling is completed.