JP2018138464A - Filling device, producing device of bag in box, and method for producing bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling device, a producing device of a bag in box, and a method of producing a bag capable of preventing unnecessary opening of a plug.SOLUTION: A filling device according to one embodiment of the present invention comprises a conveying section that feeds a bag with a filling port along a predetermined conveying path, a filling section that includes a filling nozzle for injecting contents into the bag through the filling port in an opened state, a filling port holder that holds the filling port of the bag during a filling process of injecting the contents into the bag and releases the holding after the filling processing, and a bag holder for restricting the movement of the bag toward the downstream side by pressing the bag at the same time as releasing the holding of the holding mechanism or even after releasing the holding.SELECTED DRAWING: Figure 1

Description

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

  A flexible bag having an openable / closable cap is used as a container for storing contents such as liquid. Also known is a bag-in box in which a flexible bag is housed in an outer box made of cardboard as an inner bag (see, for example, Patent Document 1).

  For example, a filling device that fills the contents of a flexible bag fills the flexible bag with a transport mechanism that sends a row of a plurality of empty flexible bags along a predetermined transport path, and a filling station on the transport path. A filling mechanism for filling the contents through the mouth, a cutting mechanism for cutting the bag rows individually at a cutting station provided on the downstream side of the filling station, and a housing mechanism for housing individual flexible bags in the exterior box And comprising. The filling mechanism includes a filling nozzle that injects contents into the filling port, and a capping mechanism that opens the cap before the filling process and closes the cap after the filling process. The downstream side of the filling station is provided with an inclined conveyance path so that the downstream side descends. For example, before the filling process, the outer periphery of the cap is held by a holding mechanism provided in the filling station, and when the holding is released after filling and closing, the bag is pulled downstream by the weight of the flexible bag filled with the contents. As a result, the bag row moves downstream.

  As a flexible bag handled by such a filling device, a bag having a hinge cap that opens and closes the filling port by rotation is known.

JP-A-6-135403

  However, when the bag row moves downstream after closing, the hinge cap may open due to interference between a peripheral member such as a holding mechanism that holds the outer periphery of the cap and the hinge cap.

  Therefore, an object of the present invention is to provide a filling device, a bag-in-box manufacturing device, and a bag manufacturing method that can prevent unnecessary opening.

  A filling apparatus according to an aspect of the present invention includes a transport unit that sends a bag having a filling port along a predetermined transport path, and a filling unit that includes a filling nozzle that injects contents into the bag through the filling port. A filling port holder that holds the filling port of the bag during a filling process of injecting contents into the bag and releases the holding after the filling process; and release of the holding of the filling port holder; A bag holder that restricts movement of the bag to the downstream side by pressing the bag at the same time or until after the release of the holding.

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

Explanatory drawing which shows the structure of the filling apparatus concerning embodiment of this invention. The top view which shows a part of filling mechanism of the filling apparatus. The top view which shows the structure of the holding arm of the filling mechanism. The side view of the filling mechanism. The front view of the filling mechanism. Explanatory drawing which shows the filling process in the manufacturing method of the bag in box. Explanatory drawing which shows the filling process in the manufacturing method of the 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 an embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 is a side view illustrating the outline of the configuration of a filling device 10 according to the present embodiment. FIG. 2 is a plan view of the filling mechanism, and FIG. 3 is a plan view showing the holding arm. 4 is a side view of the filling mechanism, and FIG. 5 is a front view. 6 and 7 are explanatory views showing a part of the manufacturing method of the bag-in-box, FIG. 6 is a plan view, and FIG. 7 is a side view.

  As shown in FIG.1 and FIG.2, the filling apparatus 10 is an apparatus which fills the flexible bag 3 which has the filling port 5 with the hinge cap 6 with the content C1. The filling device 10 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 exterior box 2 made of cardboard, for example.

  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 5 called a spout configured in a cylindrical shape with a synthetic resin is provided. The filling port 5 is integrally provided with a hinge cap 6 that is a cap made of synthetic resin.

  As shown in FIGS. 4 and 5, a plurality of annular ribs 5 a projecting outward are provided on the outer peripheral surface of the base end portion of the filling port 5 as uneven portions. The annular rib 5a is formed so as to be engageable with a guide rail 31 or a holding arm 36a as a holding mechanism. In addition, an engaging portion that is a step to be fitted to the hinge cap 6 is formed on the outer periphery of the tip portion in the axial direction of the filling port 5. A hinge cap 6 is attached to the engaging portion.

  The hinge cap 6 is configured to be detachable from the filling port 5. The hinge cap 6 includes a cylindrical cap base 6a and a lid body 6b that is rotatably connected to the outer periphery of the cap base 6a by a resiliently deformable connecting piece and opens and closes the upper opening of the cap base 6a.

  The cap base 6a of the hinge cap 6 has a recess into which the tip of the filling port 5 is inserted and fitted, and a receiving portion that is a step to be fitted to the engaging portion of the filling port 5 is formed on the inner peripheral wall of the recess. Has been.

  The lid 6b is configured to be movable between a closed position for closing the filling port 5 and an open position for opening the filling port 5. In addition, a protruding piece 6e serving as a knob portion protruding outward is integrally formed at a predetermined position on the outer surface of the peripheral edge of the lid 6b. When the user opens and closes the lid body 6b of the hinge cap 6, the connecting piece elastically deforms when the user pinches and moves the protruding piece 6e, and the lid body 6b rotates about a predetermined rotation axis. An engaging flange 6f that engages with the clamp piece 35c is formed on the outer periphery of the cap base 6a of the hinge cap 6.

  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 filling ports 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, a filling unit that sequentially injects the contents C1 into the empty flexible bag 3 in the bag row 3A, and the hinge cap 6. A filling mechanism 30 having a plug processing unit for opening and closing the bag, a cutting mechanism 40 that is a cutting unit that cuts and separates the bag row 3A, 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, 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 transport mechanism 20 has an inclined surface 20a that descends downstream from the filling position.

  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 transport rail 26 disposed along the transport path A <b> 1 and a filling port holder 36.

  The transport rail 26 is disposed horizontally from the supply position P1 to the filling position P2.

  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 sides of the filling port 5 and are configured to be able to engage with an annular rib 5a formed on the outer periphery of the filling port 5 arranged upward. The conveyance 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 filling port holder 36 constituting the holding unit 22 includes a holding arm 36a. The holding arm 36a is configured to be rotatable about a predetermined rotation axis. The holding arm 36a has a holding edge curved in an arc shape. The holding arm 36a has at least a tip portion disposed in the slit passage 32, and is between a holding position S1 that holds the filling port 5 at a holding edge and a retreat position S2 that is outside the slit passage 32 and retracted upward. It is configured to be movable.

  The holding arm 36a is positioned at the holding position S1 during the filling process, thereby engaging the annular rib 5a and holding the filling port 5. The holding arm 36a has a function of supporting a part of the periphery of the filling port 5 being filled by staying at a position engaged with the filling port 5 of the bag row 3A during filling. Further, the holding arm 36a is retracted to the retracted position S2 outside and above the slit passage 32 at a predetermined timing after the filling process, thereby releasing the holding of the filling port 5 and allowing the flexible bag 3 to move downstream. To do.

  The bag holder 39 is disposed outside the chamber 38 and at a predetermined position downstream of the filling port 5 during the filling process. The bag holder 39 includes an air cylinder as a drive mechanism, 39a, and a pressing part 39b provided at the tip of the shaft of the air cylinder 39a.

  The base end portion of the holding part 39b is connected to an air cylinder 39a that is a drive mechanism. The holding part 39b is a pad member made of fluororesin (Teflon (registered trademark) / PTFE) or urethane / rubber / sponge / felt. The holding part 39 b is arranged at a predetermined position on the downstream side of the filling nozzle 34. The holding part 39b is configured to be able to advance and retreat by a holding position S3 that comes into contact with the upper surface of the flexible bag 3 and a retreat position S4 that retreats outside the conveyance path A1 by the operation of the air cylinder 39a. The air cylinder 39a is arranged so that the axial direction of the air cylinder 39a intersects the conveyance path A1 of the flexible bag 3 to be pressed and is preferably vertical. That is, the holding part 39b is arranged in a posture in which it moves forward and backward in a direction orthogonal to the inclined surface 20a that defines the transport path A1 of the flexible bag 3.

  The holding part 39b is arranged at the holding position S3 before the filling process. At the pressing position S3, the bag row 3A is held by contacting the upper surface of the flexible bag 3 and pressing the bag row 3A from above. Further, the holding part 39b moves to the retracted position S4 at a predetermined timing, thereby releasing the holding of the flexible bag 3 and allowing the bag row 3A to move.

  The filling table 23 is arranged below the bag row 3A in which the filling port 5 is arranged upward at the filling position P2. The filling table 23 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. The plurality of rotating rollers 23a constitute an inclined support base, and an inclined conveyance 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 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. The rotation of the driving roller 24 pulls the downstream side from the filling position P2 of the bag row 3A downstream along the transport path A1 before the filling process, thereby applying tension to the bag row 3A. In the present embodiment, since the transport path A1 is inclined downward on the downstream side, it is possible to omit the drive roller 24 and obtain the transport force by the weight of the bag row 3A.

  The filling mechanism 30 accommodates a tank 33 that holds the contents C1, a filling nozzle 34 that communicates with the tank 33, a capping mechanism 35 that attaches and removes a cap, and a filling nozzle 34, a capping mechanism 35, and a holding arm 36a. And a chamber 38.

  The filling nozzle 34 is configured to be movable up and down between a lowered position inserted into the filling port 5 and a raised position retracted from the filling port 5. The filling nozzle 34 is disposed opposite to the filling port 5 of the flexible bag 3 supported on the transport path A1. The filling nozzle 34 is lowered to be inserted into the filling port 5 after the opening process. An opening / closing valve capable of opening and closing the flow path is provided at the tip of the filling nozzle 34. By opening the opening / closing valve of the filling nozzle 34 in a state where the filling nozzle 34 is inserted into the filling port 5 at the lowered position, a filling process for injecting the contents C1 into the flexible bag 3 through the filling port 5 is performed.

  The capping mechanism 35 includes a clamp part 35 a that holds the hinge cap 6. The clamp part 35a is arranged on the upper part of the holding arm 36a, and is configured to be rotatable and coaxial with the holding arm 36a. The clamp part 35a is configured to be capable of moving up and down.

  The clamp part 35a includes a clamp base 35b, a pair of clamp pieces 35c, and a coil spring 35d as an urging member that applies an elastic force in a direction in which the clamp piece 35c is opened.

  The clamp base 35 b is a plate-like member having a recess in which the upper portion of the hinge cap 6 is accommodated on the lower surface thereof, and covers the upper portion of the hinge cap 6. The clamp base 35b can rotate integrally with the clamp piece 35c.

  The pair of clamp pieces 35c are rotatably provided below the clamp base 35b. The clamp piece 35c is configured to be opened and closed by being individually rotated.

  The coil spring 35d is biased in the direction in which the tips of the pair of clamp pieces 35c approach each other by connecting the tips of the pair of clamp pieces 35c.

  The clamp part 35a is configured to be able to hold and release the hinge cap 6 by opening and closing the clamp piece 35c. Further, the clamp part 35a is configured to be movable between the stoppering position S5 and the retracted position S6 by turning and raising / lowering operations. Furthermore, the clamp part 35a is configured to be capable of performing an opening process and a plugging process by moving up and down while holding the hinge cap 6.

  Specifically, the clamp part 35a grips the hinge cap 6 attached to the filling port 5 by closing the clamp piece 35c, and lifts the hinge cap 6 from the filling port 5 by moving up while holding the hinge cap 6. Remove the plug. Further, the clamp part 35a moves to the retracted position S6 retracted from the filling port 5 by rotation. Further, the clamp part 35a moves from the retracted position to the plugging position S5 on the filling port 5, and descends and presses toward the filling port 5 while holding the hinge cap 6, thereby filling the filling port 5 after the filling process. A stoppering process for attaching the hinge cap 6 to the base plate is performed.

  The chamber 38 houses the filling nozzle 34, the capping mechanism 35, and the holding arm 36a.

  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 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 arranged in parallel. A plurality of rotating rollers 25a constitute a support base that is inclined so that the downstream side is lowered, and a transport 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, the manufacturing method of the bag and the bag in box 4 using the manufacturing apparatus 1 of the bag in box 4 will be described with reference to FIGS. 6 and 7 are explanatory diagrams showing the operation of the filling process, and are schematic diagrams in which the configuration is appropriately omitted to show the positional relationship between the clamp piece 35c and the holding arm 36a and the hinge cap 6. FIG.

  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, an opening process for opening the target flexible bag 3 while holding the bag row 3A, and the contents C1. A filling process for filling the bag, a closing process for closing the flexible bag 3 after the filling process, a cutting process for separating the bag row 3A for each flexible bag 3, and a housing process for housing the flexible bag 3 in the exterior box 2. Prepare.

  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 transport path A1. At this time, the pair of guide rails 31 supported at a predetermined height hold the filling port 5 with the hinge cap 6 of the bag row 3A at a predetermined height, and the moving direction of the filling port 5 is in the transport path A1. Will be guided along.

  As shown in FIGS. 6 and 7, in a standby state immediately before the filling port 5 of the flexible bag 3 to be filled reaches the filling position P2, as shown in ST1, the holding arm 36a is arranged at the holding position S1. . At this time, the holding part 39b of the bag holder 39 is in the retracted position S4. The clamp piece 35c of the capping mechanism 35 is in an open state.

  When each flexible bag 3 is moved downstream by the feed movement of the bag row 3A and the filling port 5 of the target flexible bag 3 reaches the filling position P2, the filling port 5 is placed on the holding arm 36a waiting at the holding position S1. By entering and engaging, the filling port 5 is held at the filling position P2 (ST2). At the same time, the clamp piece 35c is rotated and closed by being pressed by the hinge cap 6 at the upper portion of the filling port 5, and the hinge cap 6 is gripped by the clamp portion 35a.

  When the filling port 5 reaches the filling position P2, the controller 50 drives the air cylinder 39a to lower the holding part 39b and move it to the holding position S3, thereby completing the positioning (ST3).

  After the positioning is completed, the control unit 50 drives the capping mechanism 35 to perform a plug opening process. Specifically, the clamp part 35a is moved upward in a state where the hinge cap 6 is gripped, so that the hinge cap 6 is removed and further rotated to move to the retracted position S6. At this time, the holding arm 36a is maintained at the holding position S1.

  Next, the control unit 50 lowers the filling nozzle 34 and inserts it into the filling port 5. Then, a filling process is performed by opening an opening / closing valve arranged in the filling nozzle 34. During the filling process, the filling port 5 is held at a predetermined position by the holding arm 36a, and the upper surface of the flexible bag 3 is held at a predetermined position by being pressed by the pressing part 39b.

  When the predetermined amount of liquid injection is completed, the control unit 50 raises the filling nozzle 34 and retracts it from the filling port 5.

  After the filling process is completed, the capping mechanism 35 is driven to perform the plugging process. Specifically, the clamp part 35a holding the hinge cap 6 removed by the plugging process is moved to the plugging position S5 on the filling port 5 by rotation, and lowered to cover the hinge cap 6 on the filling port 5. Then, the hinge cap 6 is attached. When the stoppering process of the hinge cap 6 is completed, the clamp part 35a is retracted to the retracted position. The clamp piece 35c is rotated by the tensile elastic force of the coil spring 35d and is in an open state.

  After moving the filling port 5 to the filling position P2, the holding arm 36a stays engaged with the annular rib 5a until the filling process is completed, and maintains the state at the filling position P2 so that the filling port 5 is maintained. To fix.

  The controller 50 moves the holding arm 36a to the retracted position S2 at a predetermined timing to release the filling port (ST4).

  The controller 50 releases the holding of the bag row 3A by retracting the holding part 39b to the retracted position S4 simultaneously with the retracting of the retaining arm 36a or after a predetermined time has elapsed (ST5).

  Here, the timing for retracting the holding part 39b is controlled to be the same as or later than the timing for retracting the holding arm 36a. For example, the holding part 39b is retracted within a predetermined time after releasing the holding of the holding arm 36a, for example, within 3 seconds, preferably within 2 seconds. That is, at the time when the holding arm 36a is released, the pressing part 39b is maintained in the pressing position S3 where the pressing part 39b contacts and presses the surface of the flexible bag 3. For this reason, the movement to the downstream side of the flexible bag 3 is controlled by the pressing part 39b.

  When the holding of the flexible bag 3 is released in ST5, the bag row 3A is sent downstream along the conveyance path A1 in which the downstream side is inclined by the weight of the bag row 3A. Therefore, since the holding arm 36a is retracted before the hinge cap 6 moves downstream, it is possible to avoid the hinge cap 6 from interfering with the pressing part 39b during the downstream movement after the filling process.

  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. 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 36a is rotated and raised to move to the retracted position, and the pressing part 39b is moved backward to move to the retracted position. As a result, 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 movement of the bag to the downstream side can be restricted by pressing the bag with the holding part 39b simultaneously with the release of the holding of the holding arm 36a or until the release of the holding. Accordingly, the holding arm 36a is already separated from the filling port 5 when the hinge cap 6 moves downstream by releasing the holding of the holding arm 36a after the filling process, so that the hinge cap 6 is held during the movement. Interference with the arm 36a can be avoided. For this reason, it is possible to prevent the hinge cap 6 from opening unnecessarily.

  Further, by holding the flexible bag 3 obliquely from the upper downstream side toward the lower upstream side, the bag row 3A can be prevented from being pulled downstream, and the flexible bag 3 filled with the contents is downstream. It can be prevented from being deformed by being pulled to the side. As a result, the filling port 5 is maintained in an upward posture and the position and direction of the filling port 5 are stabilized, so that the stability of the filling process is improved.

  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 C1 to 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 pouch with a film-type filling port.

  Moreover, although the holding | suppressing part 39b pressed down from the top was illustrated, it is not restricted to this. For example, it is good also as a structure pressed down by pushing up from the bottom, or the structure which clamps the bag 3.

  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 ... Bag in box manufacturing apparatus, 2 ... Exterior box, 3 ... Bag, 3A ... Bag row, 4 ... Bag in box, 5 ... Filling port, 5a ... Annular rib (engagement part), 6 ... Hinge cap, 6a DESCRIPTION OF SYMBOLS ... Cap base, 6b ... Lid, 6e ... Projection piece, 10 ... Filling device, 20 ... Conveyance mechanism, 20a ... Inclined surface, 21 ... Roll support part, 21a ... Support shaft, 22 ... Holding part, 23 ... Filling table, 26 ... transport rail, 30 ... filling mechanism, 31 ... guide rail, 32 ... slit passage, 33 ... tank, 34 ... filling nozzle, 35 ... capping mechanism, 35a ... clamp part, 35b ... clamp base, 35c ... clamp piece, 36 ... Filling port holder, 36a ... Holding arm, 38 ... Chamber, 39 ... Bag holder, 39a ... Air cylinder, 39b ... Holding part, 40 ... Cutting mechanism, 41 ... Motor, 50 ... controller, 60 ... accommodating mechanism, A1 ... conveyance path, C1 ... contents.

Claims (7)

A transport unit that sends a bag having a filling port along a predetermined transport path;
A filling unit comprising a filling nozzle for injecting contents into the bag through the filling port;
A filling port holder for holding the filling port of the bag during a filling process for injecting contents into the bag and releasing the holding after the filling process;
And a bag holder that restricts movement of the bag to the downstream side by pressing the bag until the release of the holding of the filling port holder or after the release of the holding. The filling port holder includes a holding arm configured to be movable between a holding position that engages with an outer periphery of the filling port and a retreat position that retreats from the filling port,
The bag holder includes a pressing part configured to be movable between a pressing position that contacts the surface of the bag when the filling process is completed and a retracted position that is retracted from the bag.
The filling device according to claim 1. The filling port of the bag is provided with a cap configured to be movable between a closed position for closing the filling port and an open position for opening the filling port,
The transport unit has an inclined surface that descends to the downstream side, and includes a transport path through which a bag row including a plurality of the bags is connected,
The filling device according to claim 2, wherein the filling unit includes a capping mechanism for attaching the cap to the filling port after the filling process.   In the state where the filling port of the target bag is arranged at the filling position, the holding arm at the holding position, and the holding part at the holding position, the filling nozzle performs the filling process, and the filling process After the completion of the operation, the holding arm is moved to the retracted position to release the holding, and after the filling process is completed, the holding part is moved to the retracted position simultaneously with the movement of the holding arm or within a predetermined time thereafter. The filling device according to claim 2, further comprising a control unit that releases the holding of the bag.   5. The control unit according to claim 4, wherein after the filling process is completed, the holding part is released by moving the holding part to the retracted position simultaneously with the movement of the holding arm or within 3 seconds thereafter. Filling equipment. 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. A transport process for sending a bag having a filling port along a predetermined transport path;
While holding the filling port at the filling position on the transport path and holding the bag on the downstream side of the filling port, a filling process for filling the filling port with contents,
Releasing the holding of the filling port after completion of the filling process;
Releasing the holding of the bag simultaneously with releasing the holding of the filling port or after releasing the holding of the filling port;
A method for manufacturing a bag comprising: