JP5861312B2 - Bag-in-box manufacturing apparatus and manufacturing method - Google Patents

Description

  The present invention relates to an apparatus and a manufacturing method for manufacturing a bag-in-box by storing a flexible bag filled with a liquid content in a storage cardboard.

  FIG. 1 is a diagram showing an example of the configuration of a conventional bag-in-box manufacturing apparatus. The bag-in-box manufacturing apparatus shown in FIG. 1 has a single filling line. A continuous long bag 1 is conveyed in the conveying direction indicated by an arrow 2, filled with a predetermined liquid content in a filling unit 3, and extended from the filling unit 3, and an arrow of the conveyor 4 A bag shooter 6 disposed at the front end of the conveyance direction indicated by 5, and a conveyor 9 that supplies the cardboard 7 in the direction of the arrow 8 in the direction orthogonal to the conveyor 4 below the bag shooter 6. It is what it has. In addition, the cap (spout) 10 in which the cap of the bag supplied to the filling machine is not sealed is in a state in which the cap is originally attached in addition to the case where the cap is sealed after filling as indicated by reference numeral 11. May be supplied to the filling machine and the cap may be removed from the filling machine to be filled and re-plugged.

  A long continuous bag 1 is supplied to the filling unit 3, and a predetermined liquid content is supplied into the bag 1 from the spout 10 of the continuous bag 1 (with the cap 11 removed). After filling, the filled continuous bags 1 are cut into one bag 1a each by the cutting unit 12, and conveyed to the shooter 6 in the direction of arrow 5 by the driving roll 4a of the conveyor 4, and the cardboard 7 is The cardboard 7 is supplied to the lower side of the shooter 6 by the roll 9 a (or belt) of the conveyor 9 to be supplied, and the bags 1 a are stored one by one in one cardboard 7.

JP-A-6-135406 JP 2008-168918 A

  In a bag-in-box manufacturing apparatus having one row of filling lines shown in FIG. 1, since the manufacturing time is generally determined by the filling time of the filling machine, it is difficult to manufacture a bag-in-box at high speed. .

  FIG. 2 is a view showing an example of the configuration of a bag-in-box manufacturing apparatus different from FIG. 1, and is an apparatus that increases the manufacturing speed of a bag-in-box, and has, for example, three rows of filling lines It is.

  In the case of the bag-in-box manufacturing apparatus shown in FIG. 2, the same number of shooters 6 and corrugated cardboard 7 supply lines as the number of filling sections 3 are required, which complicates the apparatus and requires a large amount of equipment and installation space. Is required.

  Moreover, as an apparatus provided with the above-mentioned several line filling parts, as shown in FIG. 3, it has two rows of conveyors 4-1 and 4-2 for carrying the bags 1a and 1b, and a single cardboard box. There is an apparatus that can store the bags 1a and 1b at the supply position.

  This device includes two filling sections 3-1, 3-2 for filling a predetermined liquid content in each row in a plurality of continuous long bags 1-1, 1-2. The conveyors 4-1 and 4-2 extend between the conveyors 4-1 and 4-2 extending from the filling units and the leading ends of the conveyors 5-1 and 5-2. Transfer means 13 (slide table unit, belt conveyor, roll conveyor, etc.) that reciprocates in a direction perpendicular to the bag, and a bag shooter disposed on the opposite side of the transfer means 13 with respect to the conveyors 4-1 and 4-2 6 and a lower side of the bag shooter 6 include a conveyor 9 for supplying cardboard 7 in a direction orthogonal to the conveyors 4-1 and 4-2.

  In the case of this apparatus, the mechanism of the transfer means 13 is complicated, and the time required for the transfer reciprocation requires time to move the interval between the two rows of conveyors 4-1 and 4-2.

  Furthermore, as an apparatus for filling at a high speed, which is different from that shown in FIG. 3, there is a rotary filling machine in which the filling section shown in FIG. 4 is a rotary type. The rotary filling machine shown in FIG. 4 conveys the container 22 in the direction indicated by the arrow 23 in the container supply unit 21 and supplies it to the filling unit 24. The filling unit 24 of the filling unit 25 (there are eight filling units in the case of FIG. 4) fills the supplied container with the liquid contents while continuously rotating in the direction of the arrow 26. The filled container 27 is conveyed and collected in the direction indicated by the arrow 29 in the container collection unit 28.

  In general, the rotary filling machine shown in FIG. 4 is intended for containers having a certain degree of rigidity that can stand independently, such as cans, plastic bottles, and paper containers. In the case of a flexible container, a rotary filling machine is not used.

  The reason why it is not used is that it is difficult to set an empty bag in a rotary filling machine that is rotating continuously, and to carry it out after filling and collect it in cardboard because the bag is flexible. It was a problem.

  That is, the flexible bag 31 is as shown in the side views of FIGS. 5 (a) and 5 (b), and the bag body is a bag made of a flexible plastic film wrapping material. A spout (plug) 32 for injecting and discharging liquid contents is connected to a partial opening at the top of the bag body formed into a bag shape by the portion 31a, and sealed with a cap 32a.

  The state when the bag is inserted into the cardboard includes a cubic shape as shown in FIG. 5 (a) or a flat shape as shown in FIG. 5 (b).

  In general, with respect to the posture of the bag 31 stored in the cardboard 34 in the bag-in-box type liquid packaging, the cap 32a portion always faces upward and the seal portion 31a is horizontal and stored in the cardboard 34. However, when the flexible bag 31 is filled with a rotary filling machine, the posture of the filled flexible bag in the cardboard 34 tends to be uneven.

  In order to solve the above problem, as shown in FIG. 6, the flexible bag 31 is set in advance on the cardboard 34 before filling, and the cardboard 34 containing the flexible bag 31 is supplied to the rotary filling machine and filled. However, in this case, there is a problem that the liquid content adheres to the corrugated cardboard 34, or the paper powder foreign matter on the cardboard 34 is mixed into the liquid content.

In addition, in Japanese Patent Application No. 2011-072146, filling is possible with a rotary filling machine, and the liquid content adheres to the corrugated cardboard, or the paper powder foreign matter on the corrugated cardboard is mixed into the liquid content. A retainer has been proposed. FIG. 7 shows the retainer. The retainer 72 shown in FIG. 7 is made of plastic or metal and is made of a material that does not generate dust, and an empty flexible bag can be set therein. The retainer 72 includes an open top surface 72a, a bottom portion 72b, and four side surfaces 72c-1, 72c-2, 72c-3, 72c-4. Of the four side surfaces, 72c-4 is partially opened, and a wall surface 72c-4a is partially formed. Further, a flexible bag holder 72d for holding a flexible bag is provided on the side surface facing the opened side surface 72c-4, that is, the upper end of the side surface 72c-2, and the flexible bag is held by the flexible bag holder 72d. The liquid content is filled in a wet state.

  However, when the retainer 72 is used, when the flexible bag is set on the retainer 72, the flexible bag may be damaged by contact with the side surface. Further, as shown in FIG. When the width of the flexible bag 41 is narrower, the flexible bag 41 comes into contact with the side surfaces 72c-1 and 72c-3 of the retainer 72, so that the bag 80 is kinked in the retainer 72 and the flexible bag 41 is broken. May be bagged.

  Therefore, the present invention does not require a large facility cost or installation space, can be filled at high speed, and liquid content can adhere to the outer box, or paper dust foreign matter in the outer box can be mixed into the liquid content. Furthermore, it aims at providing the manufacturing apparatus and manufacturing method of a bag in box which do not have bag breakage by the wrinkle generation | occurrence | production of a flexible bag.

The invention according to claim 1 of the present invention, after filling the liquid contents in the flexible bag, before filling a device for producing a bag-in-box are housed in corrugated cardboard, the bottom to set the pre-empty flexible bag A retainer that opens ,
Means for setting the empty flexible bag on a retainer;
A filling machine for filling the flexible bag set in the retainer with liquid content;
Means for carrying the retainer in which the flexible bag is set into a filling machine;
Means for carrying out the filled flexible bag set in the retainer;
Means for boxing corrugated cardboard for storing the filled flexible bag; means for transferring and storing the flexible bag filled with the liquid content from the carried retainer into the boxed cardboard;
Means for sealing cardboard containing a flexible bag filled with liquid content;
Means for collecting the empty retainer,
The retainer is
Of the four side surfaces, one is an open tray shape,
Comprising a flexible bag holding means for holding the flexible bag on the side facing the opened side;
The bag-in-box manufacturing apparatus is characterized in that the length between a pair of opposing side surfaces is greater than or equal to the length in the width direction of the empty flexible bag.

The invention according to claim 2 of the present invention, the retainer is a bag-in-box manufacturing apparatus according to claim 1, characterized in that it is used in circulation.

The invention according to claim 3 of the present invention is the bag-in-box manufacturing apparatus according to claim 1, wherein the filling means is a rotary filling machine.

The invention according to claim 4 of the present invention is a method for manufacturing a bag-in-box by filling a flexible bag with a liquid content and then storing it in a corrugated cardboard. Before filling, an empty flexible bag is set in a retainer in advance. And a process of
Carrying the retainer in which the flexible bag is set into a filling machine;
Filling the flexible bag set in the retainer with liquid content;
Carrying out the filled flexible bag in a state of being set in the retainer;
A step of boxing a cardboard for storing the filled flexible bag;
Transferring the flexible bag filled with the liquid content from the carried retainer to the boxed cardboard and storing it;
Sealing the cardboard containing the flexible bag filled with the liquid content;
A method for producing a bag-in-box using a step of recovering an empty retainer,
Furthermore, the retainer is
Of the four side surfaces, one is an open tray shape,
Comprising a flexible bag holding means for holding the flexible bag on the side facing the opened side;
The bag-in-box manufacturing method is characterized in that the length between a pair of opposing side surfaces is greater than or equal to the length in the width direction of the empty flexible bag.

  According to the bag-in-box manufacturing apparatus and the manufacturing method of the present invention, it is possible to perform high-speed filling without requiring a large facility cost and installation space, and to reduce damage to the flexible bag when the flexible bag is set on the retainer. Can be prevented, and the bag can be prevented from being broken. Furthermore, the liquid contents can be prevented from adhering to the outer box, and the paper powder foreign matter in the outer box can be prevented from being mixed into the liquid contents.

The figure which shows an example of a structure of the manufacturing apparatus of the conventional bag in box. The figure which shows an example of a structure of the manufacturing apparatus of the bag in box different from FIG. The figure which shows the manufacturing apparatus of a bag-in-box provided with the filling part of multiple lines. The figure which shows the rotary type filling machine whose filling part is a rotary type. The side view of a flexible bag. (A) is a cube-shaped flexible bag. (B) shows a flat flexible bag. The figure which shows having set the flexible bag to the cardboard beforehand before filling. The figure which shows the retainer conventionally proposed. The figure for demonstrating the problem of the retainer of FIG. The schematic diagram which shows schematic structure of the bag in box manufacturing apparatus of this invention. The schematic diagram of the retainer which concerns on this invention. (A) is a schematic configuration diagram. (B) is a figure which shows that a bottom part opens and closes. The schematic diagram which looked at the retainer which set the flexible bag from the upper surface. The figure for demonstrating the method of setting an empty flexible bag to a retainer. (A) is a figure which shows supplying a flexible bag to a retainer. (B) The figure which shows having inserted the stopper pushing tool into the flexible bag stopper. (C) is a figure which shows pushing a plug into the projection part of a retainer. The figure which shows the case where the retainer based on this invention is arrange | positioned in parallel and a flexible bag is set. The figure which shows the case where a flexible bag is transferred to a cardboard from a retainer by the transfer apparatus which concerns on this invention.

  Hereinafter, an embodiment for carrying out a bag-in-box manufacturing apparatus according to the present invention will be described with reference to the drawings.

  FIG. 9 is a schematic diagram showing a schematic configuration of a bag-in-box manufacturing apparatus according to the present invention. The bag-in-box manufacturing apparatus includes a retainer (filling box) 142, a flexible bag set device 143 that is a means for setting an empty flexible bag 141 in advance to the retainer 142, and a liquid content in the flexible bag set in the retainer. , A carry-in conveyor 145 that is a means for carrying a retainer in which a flexible bag is set into the filling machine 144, and a carry-out conveyor 146 that is a means for carrying out the state in which the filled flexible bag is set in the retainer. And a corrugated board making device 148 that is a means for making a corrugated cardboard 147 for storing the filled flexible bag, and a flexible bag filled with the liquid content from the carried retainer is transferred to the boxed cardboard for storage. Transfer is a means to Device 149, a bag-in-box sealing device 150 that is a means for sealing the cardboard in which the flexible bag filled with the liquid content is stored, and a recovery conveyor 151 that is a means for recovering the empty retainer. ing.

  The retainer 142 is shown in detail in FIG. FIG. 10A schematically shows the retainer 142. The retainer 142 is made of plastic or metal and is made of a material that does not generate dust, and an empty flexible bag is set therein. I can do it. The retainer 142 is a tray-shaped retainer in which one of the four side surfaces 142a-1 to 142a-4 is opened, and the side surface 142a-1 facing the opened side surface 142a-3 is arranged on the side surface 142a-1. A flexible bag holder 142b, which is a flexible bag holding means for holding the flexible bag, is provided. The flexible bag holder 142b has two protrusions 142b-1 and 142b-2 at its tip. Also, the top surface is open, and the bottom 142a-5 can be opened and closed in the direction indicated by the arrow 175a with the rotating part 174 as the rotation axis, as shown in FIG. 10B. In addition, the retainer 142 can be tilted in the direction indicated by the arrow 175b regardless of the rotation.

  FIG. 11 is a schematic view of the retainer 142 with the flexible bag 141 set as viewed from above. A length Wr between a pair of opposing side surfaces of the retainer 141 shown in FIG. 11 (between the side surface 142a-2 and the side surface 142a-4) is larger than a length Wb in the width direction of the empty flexible bag 141, or It is equivalent. Thereby, when the flexible bag 141 is filled with the liquid content, the flexible bag 141 does not come into contact with the side surface 142a-2 and the side surface 142a-4.

  FIG. 12 is a diagram showing a case where an empty flexible bag 141 is set on the retainer 142. A flexible bag connected in a strip shape (not shown) is separated into one flexible bag 141 and then supplied to the retainer 142 (FIG. 12 ( a)). In this case, when the cap is sealed on the cap 141a of the flexible bag 141, the cap is removed. Next, the plug pusher 173 is inserted between the hinges 141a-2 and 141a-3 of the plug 141a (FIG. 12B), and the flexible bag holder 142b is further inserted between the hinges 141a-1 and 141a-2. The plug 141a is pushed in by the plug pusher 173 so that the protrusions 142b-1 and 142b-2 come (FIG. 12C). In this way, the empty flexible bag 141 is set on the retainer 142.

FIG. 12 illustrates the case where there is only one retainer 142, but in order to correspond to the filling speed of the filling machine, two or more retainers arranged in parallel as shown in FIG. May be.

  A process until the flexible bag 141 is filled with the liquid content and stored in the cardboard box will be described with reference to FIGS. The retainer 142 in which the flexible bag 141 is set is carried into the filling machine 144 by a carry-in conveyor 145 using a belt conveyor, for example.

  The filling machine 144 according to the present invention shown in FIG. 9 is a rotary filling machine, for example, so that the plug 141a of the flexible bag 141 set in the retainer 142 matches the position of a filling nozzle (not shown) of the filling machine 144. A retainer alignment jig is provided. In the case of the filling machine 144 shown in FIG. 9, there are eight filling units, and filling is performed while continuously rotating in the direction of the arrow 140.

  When filling, the flexible bag 141 set on the retainer 142 has the stopper 141a held by the retainer 142, and a filling nozzle (not shown) is accurately inserted into the stopper 141a by the retainer positioning jig. I can do it.

  As the cardboard box making apparatus 148 for making the cardboard box 147 for storing the filled flexible bag, a generally used cardboard box making apparatus can be adopted.

  The filled flexible bag is sealed by a cap (not shown) with a cap (not shown), and is transferred to the transfer device 149 by a carry-out conveyor 145 using, for example, a belt conveyor in a state where it is set in a retainer.

  The transfer device 149 is a device for transferring and storing the flexible bag filled with the liquid content from the carried retainer into the boxed cardboard, and after the retainer is conveyed onto the opened cardboard, the cardboard As shown in FIG. 14 above, the bottom 142a-5 of the retainer opens by rotating in the direction of the arrow 175a with the rotating part 174 as the rotation axis, and the plug holding mechanism 142b opens the holding of the plug 141a. Thus, the flexible bag filled with the liquid content falls in the direction indicated by the arrow 176 and is stored in the cardboard. In addition, the flexible bag can be dropped and stored on the cardboard by tilting the retainer in the direction indicated by the arrow 175b regardless of the rotation.

  As the bag-in-box sealing device 150 for sealing the cardboard containing the flexible bag filled with the liquid content, a generally used sealing device can be adopted.

  On the other hand, the empty retainer is conveyed to the flexible bag setting device 143 by the collection conveyor 151, and then the empty flexible bag 141 is set again. Thus, the retainer is used in a circulating manner.

  As described above, according to the bag-in-box manufacturing apparatus and manufacturing method of the present invention, the flexible bag is more accurately attached to the retainer than when a plurality of manufacturing apparatuses used for conventional high-speed filling are installed. It can be set so that it can be held in the container, and can be filled with a rotary type filling machine, so it can be filled at high speed without requiring large equipment costs and installation space, and the liquid content can be stored in the outer box. It can prevent adhering or mixing of the paper dust foreign material in the outer box into the liquid content. Moreover, since the flexible bag set to the retainer does not contact the side surface of the retainer, wrinkles do not occur, and as a result, breakage of the flexible bag can be prevented. Furthermore, there is an advantage that the retainer can be used in a circulating manner.

DESCRIPTION OF SYMBOLS 1 ... Continuous elongate bag 1-1, 1-2 ... Continuous multiple rows of elongate bags 1a, 1b ... Bag cut into one 2 ... Continuous length Arrows 3 indicating the direction in which the bags are conveyed 3... Filling sections 3-1, 3-2... 2 filling sections 4... Conveyors 4-1 and 72 extending from the filling sections. ... conveyor 4a in two rows conveying bags 1a, 1b ... drive roll 5 of conveyor 4 ... arrows 5-1, 5-2 indicating the tip direction of conveyor 4 ... conveyer 4-1, 72 showing the conveyance direction 72 ... shooter 7 ... corrugated cardboard 8 ... arrow showing the cardboard feeding direction 9 ... conveyor 9a ... conveyor 9 roll 10 ... cap sealed Unplugged spout
11 ... Cap plug with sealing cap 12 ... Cutting part 13 ... Transfer means 21 for reciprocating movement ... Container supply part 22 ... Container 23 ... Direction for transporting container 22 An arrow 24 indicates a filling unit 25... A filling unit 26. An arrow 27 indicates a direction in which the filling unit rotates. A container 28 after filling. A container recovery unit 29. Arrow 31 indicating the direction in which the container 27 is transported and collected 31... Flexible bag 31 a... Sealed portion 32 of flexible bag 31. Spout 32 a. 72 ... Retainer 72a ... Open top surface 72b ... Bottom 72c-1, 72c-2, 72c-3, 72c-4 ... Side 72c-4a ... Wall 72d · Flexible bag holder 80 ······················································································· ··· Retainers 142a-1 to 142a-4 ··· Four side surfaces 142a-5 ··· Bottom portion 142b ··· Flexible bag holders 142b-1 and 142b-2 ··· projections 143 of the flexible bag holder ..Flexible bag setting device 144... Filling machine 145. Box sealing device 151 ... recovery conveyor 173 ... plug pusher 174 ... rotating part 175a ... bottom An arrow 175b indicating the direction of rotation about the rotating part as an axis of rotation 175b an arrow indicating a direction in which the retainer is inclined 176 an arrow 177a indicating a direction in which the flexible bag filled with the liquid content falls An arrow 177b indicating the rotation direction of the bottom when dropping the arrow Wr indicating a direction in which the retainer tilts when dropping the flexible bag Wb between the opposing side surfaces of the retainer Wb The width of the flexible bag

Claims (4)

An apparatus for manufacturing a bag-in-box by filling a flexible bag with liquid content and then storing it in a cardboard, and before filling, a retainer with an open bottom for setting an empty flexible bag in advance,
Means for setting the empty flexible bag on a retainer;
A filling machine for filling the flexible bag set in the retainer with liquid content;
Means for carrying the retainer in which the flexible bag is set into a filling machine;
Means for carrying out the filled flexible bag set in the retainer;
Means for boxing corrugated cardboard for storing the filled flexible bag; means for transferring and storing the flexible bag filled with the liquid content from the carried retainer into the boxed cardboard;
Means for sealing cardboard containing a flexible bag filled with liquid content;
Means for collecting the empty retainer,
The retainer is
Of the four side surfaces, one is an open tray shape,
Comprising a flexible bag holding means for holding the flexible bag on the side facing the opened side;
A bag-in-box manufacturing apparatus, wherein a length between a pair of opposing side surfaces is greater than or equal to a length in a width direction of an empty flexible bag. The bag-in-box manufacturing apparatus according to claim 1 , wherein the retainer is used in a circulating manner.   The bag-in-box manufacturing apparatus according to claim 1, wherein the filling means is a rotary filling machine. A method of manufacturing a bag-in-box by filling a flexible bag with a liquid content and then storing it in a cardboard, and before filling, a step of setting an empty flexible bag in a retainer in advance,
Carrying the retainer in which the flexible bag is set into a filling machine;
Filling the flexible bag set in the retainer with liquid content;
Carrying out the filled flexible bag in a state of being set in the retainer;
A step of boxing a cardboard for storing the filled flexible bag;
Transferring the flexible bag filled with the liquid content from the carried retainer to the boxed cardboard and storing it;
Sealing the cardboard containing the flexible bag filled with the liquid content;
A method for producing a bag-in-box using a step of recovering an empty retainer,
Furthermore, the retainer is
Of the four side surfaces, one is an open tray shape,
Comprising a flexible bag holding means for holding the flexible bag on the side facing the opened side;
A method for manufacturing a bag-in-box, wherein a length between a pair of opposing side surfaces is greater than or equal to a length in a width direction of an empty flexible bag.

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