JP5266505B2 - Vertical multi-row filling and packaging equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical and multiple-row packaging machine capable of preventing a lateral wrinkle from being generated in a lateral seal portion when packaging in multiple rows. <P>SOLUTION: In the vertical and multiple-row packaging machine, cylindrical portions 7b are formed in parallel with two laminated films 1 in multiple rows, the cylindrical portions 7b are heated and sealed by a lateral seal bar in the lateral direction, and a lateral seal portion 7c across the whole width is repeatedly formed in each cylindrical portion 7b at intervals in the longitudinal direction, so that a great number of packaging bags 7d are made. An object to be packaged is fed on each row of cylindrical portion 7b from above between forming one of the lateral seal portions 7c on each row of the cylindrical portion 7b and forming the lateral seal portion 7c above the same so that the object to be packaged is packed into the packaging bag. The vertical and multiple-row packaging machine includes a film tension means for tensing the laminated film 1 in the lateral direction, moving downward together with the laminated film 1 while the lateral seal bar is heating, a lifting and moving means for lifting and moving the film tension means, and cutting and dividing means positioned on the downside of the lateral seal bar for cutting and dividing the laminated film 1 into a multiple row. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a film made of food, seasonings, pharmaceuticals, cosmetics, or other fluid or viscous fluids such as jelly, between two films or a film folded back in the width direction. The present invention relates to a vertical filling and packaging apparatus for filling and packaging a package, and more particularly to a vertical and multi-row filling and packaging apparatus for filling and packaging an article to be packaged in parallel in a plurality of rows.

  2. Description of the Related Art In recent years, packaging bags made of plastic films filled with food and drink, seasonings, pharmaceuticals, cosmetics, and other packaging materials made of fluid materials such as liquid, viscous or jelly have been widely used.

  Such a packaging bag is, for example, a laminate in which a base film layer made of, for example, a biaxially stretched ethylene-vinyl alcohol copolymer resin and a sealant layer made of, for example, an unstretched ethylene-vinyl acetate copolymer resin are laminated. Bags can be made from a single laminated film using a conventional vertical multiple-row filling and packaging apparatus described in Patent Document 1, for example.

  This vertical type multi-row filling and packaging apparatus is configured to intermittently run a laminated film from above to below, and first cut the wide laminated film into a plurality of rows of packaging films at a dividing portion during the running, and then package each row. The film is folded back in the width direction so that the sealant layers face each other, and both side edges are overlapped, and the both side edges are heat-sealed in the longitudinal direction with a vertical seal bar while the packaging film is intermittently stopped. By forming the vertical seal portion, the packaging film in each row is formed into a cylindrical shape.

  Next, the plurality of rows of cylindrical packaging films are held side by side with a pair of horizontal seal bars and pulled down, so that the laminated films are intermittently run from top to bottom as described above. The packaging film is heated and sealed in the width direction, and then the pair of lateral seal bars are separated from each other and returned to the original sealing start height, whereby the lateral seal portion over the entire width of the packaging film of each row is packaged. A large number of packaging bags are intermittently formed by repeatedly forming the film in the longitudinal direction at intervals, and further cutting the packaging film in each row at the center position of the horizontal seal portion.

  The vertical multi-row filling and packaging apparatus forms one horizontal seal portion while pulling down the cylindrical packaging film of each row from the upper side to the lower side before forming the other horizontal seal portion on the upper side. By supplying an article to be packaged into the cylindrical laminated film, the covering space in the storage space between one (lower side) horizontal seal part and the other (upper side) horizontal seal part of the packaged packaging bag is made. The filling of the package is performed simultaneously with the bag making.

JP 2004-352313 A

  However, in the conventional vertical multi-row filling and packaging apparatus described in Patent Document 1, the laminated film is cut into a plurality of rows of packaging films by the cutting unit, and then the narrow packaging films in each row are formed into a cylindrical shape to form a bag. In addition, since the packing material is filled, there is a problem that accurate guidance of the packaging film in each row and formation of the vertical seal portion by folding back are difficult, and the seal failure of the vertical seal portion is likely to occur.

  And in order to solve this problem, it is conceivable to provide a dividing portion on the downstream side of the horizontal seal bar and to separate the laminated film after the horizontal sealing, but in this case, a plurality of rows connected horizontally It is necessary to horizontally seal the cylindrical portions together, and when the horizontal sealing is performed, the multiple layers of cylindrical portions are swelled with the packaged items as they are. As a result, vertical wrinkles are likely to be generated in the horizontal seal portion, and this vertical wrinkle may cause an appearance defect of the packaging bag, leakage of the packaged goods due to insufficient sealing strength, or tearing of the bag. There was an inconvenience that there was.

  In addition, the conventional vertical multi-row filling and wrapping apparatus has a hopper for storing an article to be packaged above a portion where a vertical seal portion is formed on each row of wrapping film, and each of the hoppers by a quantitative supply device. Since the articles to be packaged are fed out by the same amount between the packaging films in the row, there is a problem that if the capacity of the hopper is increased, the overall height of the apparatus becomes too high, and if the capacity of the hopper is decreased, the continuous operation time is shortened.

  And in order to solve this problem, it is conceivable that a hopper or the like for storing the packaged goods is provided in another place, and from there, the packaged articles are sent out with a filling nozzle between the packaging films of each row, In this case, the amount of the packages to be sent between the packaging films in each row is not the same amount due to variations in the flow resistance of the filling nozzle, the delivery pressure of the packages, and the like. There was an inconvenience.

  Therefore, according to the present invention, even if the cut portion is provided on the downstream side of the horizontal seal bar so that the laminated film is cut after the horizontal seal to form a plurality of rows of packaging bags in order to avoid the sealing failure of the vertical seal portion, An object of the present invention is to eliminate the above-mentioned inconvenience by providing a vertical multi-row filling and packaging apparatus with little or no wrinkles.

  In addition, the present invention provides a vertical multi-row filling and packaging apparatus that supplies an equal amount of packaging material between a plurality of rows of laminated films without the overall height of the device becoming too high and the continuous operation time being shortened. This is also intended to eliminate the above-mentioned disadvantages.

  The present invention advantageously solves the above-described problems, and the vertical multi-row filling and packaging apparatus according to the present invention has a long laminated film folded back in the width direction or two long laminated films. While the laminated film is continuously or intermittently moved from the upper side to the lower side, the laminated film is heated and sealed in the longitudinal direction to form continuous vertical seal portions, so that the laminated film has a plurality of rows. Form parallel cylindrical parts, heat-seal these cylindrical parts in the width direction with a horizontal seal bar, and repeatedly form horizontal seal parts over the entire width of each cylindrical part at intervals in the longitudinal direction. As a result, a large number of packaging bags are made, and the cylindrical shape of each row is formed from the formation of one horizontal seal portion to the cylindrical portion of each row until the formation of the horizontal seal portion above it. Supply packaged items from above In the vertical multi-row filling and packaging apparatus for filling the packaging bag into the packaging bag, the horizontal seal bar performs the heat sealing, and is positioned at least one of the upper side and the lower side of the horizontal seal bar. A film pulling means for pulling the laminated film in the width direction while moving downward together with the laminated film, an up-and-down moving means for moving the film pulling means up and down, and a lower side of the horizontal seal bar. And a cutting means for cutting the laminated film in which the horizontal seal portion is formed in each cylindrical portion into the plurality of rows.

  In addition, the vertical multi-row filling and packaging apparatus according to the present invention is configured to continuously or intermittently form a single long laminated film folded in the width direction or two long laminated films stacked on each other from top to bottom. The laminated film is heated and sealed in the longitudinal direction to form a continuous vertical seal portion, thereby forming cylindrical portions parallel to the laminated film in a plurality of rows. While making a large number of packaging bags by repeatedly forming a horizontal seal portion across the entire width of each cylindrical portion at intervals in the longitudinal direction by heat sealing with a horizontal seal bar in the width direction of the portion, By supplying an article to be packaged from above to the cylindrical portion of each row between the formation of one horizontal seal portion on the cylindrical portion of each row and the formation of the horizontal seal portion above it. Fill the packaging bag with the item to be packaged In the vertical multiple-row filling and packaging apparatus, the package to be packaged supplied from the main tank is located above a main tank that stores the packages and a portion that forms the plurality of rows of cylindrical portions. A sealed sub-tank that is temporarily stored in a pressurized state, and a plurality of fillings that are connected to the sealed sub-tank and that supply the packaged object from above into the plurality of rows of cylindrical portions with equal flow resistance. And a nozzle.

  In the former vertical multi-row filling and packaging apparatus of the present invention, while the horizontal seal bar is performing heat sealing, the film tensioning means located on at least one of the upper side and the lower side of the horizontal seal bar is a film Driven by the lifting / lowering means for moving the pulling means up and down, pulling the laminated film in its width direction while moving downward together with the laminated film, and the cutting means is located below the horizontal seal bar, The laminated film in which the horizontal seal part is formed in the part is cut into a plurality of rows.

  Therefore, according to the vertical multi-row filling and packaging apparatus of the present invention, since the laminated film is cut into a plurality of packaging bags after transverse sealing, accurate guidance of the laminated film and laminated film when forming the vertical seal portion are provided. The vertical seal portion can be easily formed by folding it back, and the occurrence of a seal failure in the vertical seal portion can be effectively avoided, and the cut portion can be provided downstream of the horizontal seal bar. In the case of heat sealing with the horizontal seal bar, the film pulling means located on at least one of the upper side and the lower side of the horizontal seal bar is moving downward with the laminated film while pulling the laminated film in its width direction. Since the horizontal seal bar performs heat sealing in the state where the entire laminated film spreads laterally close to the original width, there are almost no vertical wrinkles in the horizontal seal portion. Not enter want, can be effectively avoided and therefore the vertical wrinkles by packing bags appearance defects and, the leakage or breakage of the bag of the package due to the lack of seal strength due to the vertical wrinkles.

  In the vertical multi-row filling and packaging apparatus of the present invention, it is preferable that the film pulling means is located on the upper side and the lower side of the horizontal seal bar, respectively. In this way, since the film pulling means pulls the laminated film in the width direction on the upper side and the lower side of the horizontal seal bar, the laminated film at the position of the horizontal seal bar can be sufficiently pulled in the width direction, and the vertical wrinkle can be obtained. Can be reliably prevented.

  In the vertical multiple-row filling and packaging apparatus of the present invention, the film pulling means includes a pair of sandwiching means for sandwiching and releasing both side edges in the width direction of the laminated film, and the pair of sandwiching means. It is preferable to have horizontal moving means for moving horizontally in the approaching and separating directions. If it does in this way, a lamination film can be pulled in the width direction, and can be easily spread laterally to near the original width.

Furthermore, in the vertical multi-row filling and packaging apparatus according to the present invention, the elevating / lowering means moves the horizontal seal bar downward together with the film pulling means, and the horizontal seal bar moves downward while moving the heating seal. Do. By doing in this way, since a film tension means can be arrange | positioned in the immediate vicinity of a horizontal seal bar, the laminated | multilayer film of the position of a horizontal seal bar can be reliably pulled by the width direction. In addition, since it is possible to make bags while continuously running the laminated film, it is possible to easily make a large number of packaging bags at a high speed, and when making bags while intermittently running the laminated film. However, since heat sealing can be performed with the horizontal seal bar while the laminated film is running, it is possible to sufficiently secure the heat sealing time with the horizontal seal bar and sufficiently increase the seal strength of the horizontal seal portion.

Furthermore, in the vertical multi-row filling and packaging apparatus according to the present invention, the horizontal seal bar is provided on a pair of horizontal seal rolls, and the elevating and moving means moves the horizontal seal roll downward together with the film pulling means. the moved, the transverse sealing bars, subjected to heat sealing across the laminated film by rotation of the lateral seal rolls, the film tensioning means, during heating the seal by the horizontal seal bars you release said laminated film. In this way, by rotating the horizontal seal roll, the heat sealing time at the horizontal seal bar can be set independently of the running speed of the laminated film, and the material and running speed of the laminated film, the type of package It is possible to increase the degree of freedom of the seal specification.

  Moreover, in the latter vertical type multi-row filling and packaging apparatus of the present invention, the main tank for storing the packaged objects stores the packaged articles and sends them to the sealed subtank, and the sealed subtank is a laminated film. A plurality of filling nozzles that are located above the portions forming the plurality of rows of cylindrical portions, temporarily store the articles to be packaged supplied from the main tank in a pressurized state, and have the same flow resistance. Then, connected to the hermetically sealed sub tank, the articles to be packaged are supplied from above into the plurality of rows of cylindrical portions.

  Therefore, according to the vertical multi-row filling and packaging apparatus of the present invention, the articles to be packaged are sent from the main tank to the sub tank, so that the continuous operation time can be extended for a long time without enlarging the sub tank and increasing the overall height of the apparatus. In addition, a plurality of filling nozzles having the same flow resistance can be connected to the sealed sub-tank to feed the packaged objects from above into the plurality of rows of cylindrical portions. The packaged items can be supplied in the same amount without variation.

  In the vertical multi-row filling and packaging apparatus of the present invention, it is preferable that the main tank is also hermetically sealed, and the packaged material is transferred to the hermetically sealed sub-tank by being pressurized inside. In this way, since the pump is not used to transfer the package, it is possible to prevent the quality of the package from being changed due to frictional heat or agitation of the pump.

  Further, in the vertical multiple-row filling and packaging apparatus of the present invention, when the plurality of main tanks are provided, the main tanks are selectively connected to the sealed sub-tanks, and the packaged items are transferred to the sealed sub-tanks. preferable. By doing so, the main tank that is not connected to the sealed sub-tank can be filled with the articles to be packaged, so that the continuous operation time can be further increased.

  The vertical multi-row filling and packaging apparatus according to the present invention continuously or intermittently extends from the top to the bottom one long laminated film folded in the width direction or two long laminated films stacked on each other. The laminated film is heated and sealed in the longitudinal direction to form a continuous vertical seal portion, thereby forming cylindrical portions parallel to the laminated film in a plurality of rows. While making a large number of packaging bags by repeatedly forming a horizontal seal portion across the entire width of each cylindrical portion at intervals in the longitudinal direction by heat sealing with a horizontal seal bar in the width direction of the portion, By supplying an article to be packaged from above to the cylindrical portion of each row between the formation of one horizontal seal portion on the cylindrical portion of each row and the formation of the horizontal seal portion above it. Fill the package bag with the item to be packaged In the vertical multi-row filling and packaging apparatus, the horizontal seal bar is positioned on at least one of the upper side and the lower side of the horizontal seal bar while moving downward together with the laminated film while the horizontal seal bar is performing the heat sealing. Film pulling means for pulling the laminated film in the width direction thereof, lifting / lowering moving means for moving the film pulling means up and down, and the horizontal seal portion positioned on the lower side of the horizontal seal bar. Cutting means for cutting the formed laminated film into the plurality of rows, and located above the main tank for storing the packaged articles and the portions forming the plurality of rows of cylindrical portions, A sealed sub-tank that temporarily stores the packaged material supplied from the tank in a pressurized state, and the plurality of rows of cylinders connected to the sealed sub-tank Wherein from above portion for supplying articles to be packaged, may comprise a plurality of filling nozzles of the flow path resistance is equal, the.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view schematically showing a vertical multi-row filling and packaging apparatus as an embodiment of the vertical multiple-row filling and packaging apparatus of the present invention as viewed obliquely from above. It is explanatory drawing which shows the function of the vertical multi-row filling packaging apparatus of the said Example. It is a perspective view which shows typically the structure of the horizontal seal | sticker part formation part in the vertical multi-row filling packaging apparatus of the said Example. It is a top view which shows typically the structure of the said horizontal seal | sticker part formation part. It is a side view which shows typically the structure of the said horizontal seal part formation part. It is a perspective view which shows typically the structure of the film tension mechanism in the said horizontal seal | sticker part formation part. It is a perspective view which expands and schematically shows a part of film tension mechanism in the said horizontal seal | sticker part formation part. It is a flowchart which shows the operation | movement procedure of the said horizontal seal | sticker part formation part. It is explanatory drawing which shows the outline of the operation state of the said horizontal seal | sticker part formation part. (A), (b) is explanatory drawing which shows the detail of the operation state of the said horizontal seal | sticker part formation part. It is a flowchart which shows the operation | movement procedure of the to-be-packaged goods supply part of the vertical type | mold multi-row filling packaging apparatus of the said Example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view schematically showing a vertical multi-row filling and packaging apparatus as an embodiment of the vertical multi-row filling and packaging apparatus of the present invention as viewed obliquely from above. These are explanatory drawings which show the function of the vertical type multi-row filling and packaging apparatus of the said Example.

  The vertical multi-row filling and packaging apparatus of this embodiment includes a base film layer made of, for example, biaxially stretched ethylene-vinyl alcohol copolymer resin, and a sealant made of, for example, unstretched ethylene-vinyl acetate copolymer resin. Two long laminating films laminated with layers are stacked, and a number of packaging bags are continuously made in parallel in 4 rows from the laminated films, while foods and seasonings are put in each packaging bag. It automatically fills materials to be packaged made of fluid materials such as materials, pharmaceuticals, cosmetics, and other liquid or viscous or jelly-like materials. As shown in FIGS. A vertical seal portion forming portion 2, an article supply portion 3, a horizontal seal portion forming portion 4, a cutting portion 5, a cutting portion 6, and at least these vertical seal portion forming portion 2 and an article supply portion 3. Horizontal seal part forming part And controlling the operation of the cutting unit 6 consists unshown and conventional controller, individual sections will now be described.

  In the film stacking section 1, two long laminated films 7 that are continuously fed from the two film rolls R and sandwiched by two rollers 8 are partially overlapped and the traveling direction is lowered. And continuously supplied to the vertical seal portion forming portion 2. Between the two rollers 8, two laminated films 7 are inserted from above to below, and between the two laminated films 7, the four filling nozzles 9 of the package supply unit 3 are inserted from above. In order to allow the insertion of the filling nozzle 9, the two rollers 8 have a small diameter at least in the axial position corresponding to each filling nozzle 9.

  In the longitudinal seal portion forming portion 2, the two laminated films 7 are overlapped in the longitudinal direction of the laminated film 7 by longitudinal seal rolls 10 at both side edges in the width direction and at three intermediate positions. 2), five vertical seal portions 7a are formed as shown in FIGS. 2 and 9, thereby forming four cylindrical portions 7b side by side in the laminated film 7.

  The vertical seal portion forming unit 2 includes a pair of the vertical seal rolls 10 extending in parallel with each other, a pair of feed rolls 11 disposed below the vertical seal roll 10, and the vertical seal rolls 10 and 10 A pair of motors 12 that rotationally drive each pair of feed rolls 11 in opposite directions and with the vertical seal roll 10 and the feed roll 11 synchronized, and each pair of the vertical seal roll 10 and the feed roll 11 Are provided with two pairs of air cylinders 13 provided at both end bearing portions of one of the pairs of the longitudinal seal roll 10 and the feed roll 11 so as to urge the rolls in the approaching direction.

  Here, each of the vertical seal rolls 10 has outer peripheral flanges at five locations on the outer peripheral surface thereof, and has heaters for heating the outer peripheral flanges therein, and both the side edges and the intermediate 3 on which the laminated film 7 is overlapped. By sandwiching and heating the location between the outer peripheral flanges, the laminated film 7 is heated and sealed between the side edges and the middle three locations to form the vertical seal portion 7a, and the laminated film is rotated by the rotation. 7 is moved downward. Each of the feed rolls 11 has an outer peripheral flange at two locations on the outer peripheral surface thereof, sandwiches the laminated film 7 between the outer peripheral flanges, and causes the laminated film 7 to travel downward by rotation thereof.

  In the packaged article supply unit 3, the four filling nozzles 9 fill the packaged articles in the same amount into the inside of the four cylindrical parts 7b of the laminated film 7 formed by the vertical seal unit forming unit 2. . The packaged article supply unit 3 includes the four filling nozzles 9 and is disposed in the vicinity of the two pressurized main tanks 14 and 15 and the film stacking unit 1 so that the four filling nozzles 9 are provided. A packaged supply path 17 that connects between the connected sealed sub-tank 16, the two pressurized main tanks 14, 15 and between them and the sealed sub-tank 16, and the two pressurized main tanks 14, 15. Two compressed air supply passages 18 for supplying compressed air to the inside, and an air discharge passage 19 for discharging the air in the sealed sub tank 16 are provided.

  The packaged article supply unit 3 further includes two air on-off valves 20 and 21 provided in the compressed air supply path 18 and two liquid level sensors 22 provided in the two pressurized main tanks 14 and 15, respectively. , 23, two main tank switching valves 24, 25 provided in the package supply path 17, a package supply opening / closing valve 26 and an air vent valve 27, and an air vent valve 28 provided in the air discharge path 19. The four filling nozzles 9 are each provided with four articles to be packaged supply opening / closing valves 29. At least the air opening / closing valves 20, 21, liquid level sensors 22, 23, and the main tank switching valve 24 are provided. , 25, the packaged object supply opening / closing valve 26, and the packaged object supply opening / closing valve 29 are each constituted by an electromagnetic valve, and the operation is controlled by the control device described above.

  Here, the four filling nozzles 9 have the same shape, the same thickness and the same length so that the flow path resistances are equal to each other, and two laminated films 7 are sandwiched between two rollers 8. It enters between the laminated films 7 from the position before the overlap, passes between the pair of vertical seal rolls 10 and extends downward in each of the four cylindrical portions 7b of the laminated film 7, and the above-described on-off valve 26, By the operation as described later of 29, every time the horizontal seal portion 7c is formed in the next horizontal seal portion forming portion 4, the article to be packaged is quickly flowed into the cylindrical portion 7b on the upper side of the horizontal seal portion 7c.

  In the horizontal seal portion forming portion 4, the laminated film 7 after filling the packaged material in each cylindrical portion 7 b is placed at a constant interval (interval corresponding to the width of the packaging bag) in the longitudinal direction of the laminated film 7. While pulling both side edges of the laminated film 7 in the width direction of the laminated film 7 to heat seal over the entire width to form a lateral seal portion 7c, a packaging bag 7d connected to four bags in the lateral direction of the laminated film 7 is laminated film. 7 in the longitudinal direction.

  FIG. 3 is a perspective view schematically showing the configuration of the horizontal seal portion forming portion 4, FIG. 4 and FIG. 5 are a plan view and a side view schematically showing the configuration of the horizontal seal portion forming portion 4, This horizontal seal portion forming portion 4 has a pair of horizontal seal rolls 31 each having a horizontal seal bar 30 extending in the axial direction on the outer peripheral surface and having a heater for heating the horizontal seal bar 30 inside, A pair of motors (not shown) that rotationally drive the horizontal seal rolls 31 and one end (right side in FIG. 5) of both ends of the pair of horizontal seal rolls 31 are fixedly supported and the other (in FIG. 5). A left-hand side roller bearing portion of the left side) is supported in a U-shaped lateral seal roll support frame 32 as viewed from above, and is supported on the lateral seal roll support frame 32. A horizontal seal unit having a pair of air cylinders 33 that press both end bearings of one of the horizontal seal rolls 31 so as to bias the pair of horizontal seal rolls 31 toward each other. 34, a horizontal seal unit elevating mechanism 35 as elevating and moving means for moving the horizontal seal unit 34 up and down via the horizontal seal roll support frame 32, and a horizontal seal unit 34 via the horizontal seal roll support frame 32 And a supported film tensioning unit 36 as a film tensioning means.

  Here, the horizontal seal unit elevating mechanism 35 includes a ball screw shaft 37 screwed into a ball nut fixed to the horizontal seal roll support frame 32, and the ball screw shaft 37 is rotationally driven via a belt-type transmission mechanism 38. Motor 39 and a pair of guide rails 40 for guiding the up-and-down movement of the horizontal seal roll support frame 32. The rotation of the ball screw shaft 37 by the motor 39 causes the horizontal seal roll support frame 32 to move horizontally. The seal unit 34 and the film pulling unit 36 can be moved up and down together at an arbitrary speed, whereby the horizontal seal portion forming unit 4 moves up and down one of the pair of horizontal seal rolls 31 and at the same time the other The so-called box motion is performed, and the lateral seal portion 7c is moved in accordance with the continuous downward movement of the laminated film 7 as described later. It is possible to form people in.

  FIG. 6 is a perspective view schematically showing the configuration of the film tension unit 36 in the lateral seal portion forming portion 4, and FIG. 7 is a perspective view schematically showing an enlarged part of the film tension unit 36. The film pulling unit 36 includes a pair of brackets 41 that are fixedly supported by the horizontal seal roll support frame 32 at the center portion that is bent with respect to the upper and lower ends, and one upper portion at the upper and lower ends of the brackets 41. Four pairs of guide rods 42 that are cantilevered and face each other on the upper and lower sides of the pair of horizontal seal rolls 31, and each pair of guide rods that are located on the upper and lower sides of the horizontal seal rolls 31, respectively. 42, two pairs of sliders 43 guided to move toward and away from each other at 42, and abutted against one guide rod 42 of each pair screwed to the side of each slider 43 And a fixing screw (not shown) for fixing the slider 43 in any axial position of the guide rod 42, thereby securing together spacing of the slider 43 of each pair to the width of the laminate film 7.

  The film pulling unit 36 is also provided with four pairs of guide rods 44 respectively supported by two pairs of sliders 43, and with each pair of guide rods 44 positioned on the upper and lower sides of the transverse seal roll 31, respectively. Two pairs of clip units 45 as clamping means guided by movement in the separation direction, and two pairs of air cylinders 46 as horizontal movement means for urging each pair of clip units 45 toward each other. , And each pair of clip units 45 is biased in a direction away from each other, and also has four pairs of compression springs 47 as horizontal moving means, where each clip unit 45 projects from one end. A pair of clip claws 45a, and an air cylinder and a return spring are built-in. By closing the side edges of the laminated film 7 by stopping the supply of compressed air, the clip springs 45a can be separated from each other by the return spring to release the side edges of the laminated film 7. .

  FIG. 8 is a flowchart showing the operation procedure of the horizontal seal portion forming portion 4 together with the operation, FIG. 9 is an explanatory diagram showing an outline of the operation state of the horizontal seal portion forming portion 4, and FIGS. ) Is an explanatory view showing details of an operating state of the lateral seal portion forming portion 4. That is, in the procedure shown in FIG. 8, the horizontal seal portion forming unit 4 turns on the air cylinder 46 for inserting the clip unit 45 (suppressed compressed air supply) in step S9 as will be described later. As shown in FIG. 1, the clip claw 45a is inserted to the position where the side edge of the laminated film 7 is sandwiched, and in step S11, the lateral seal unit 34 is returned to the predetermined ascending limit position. Then, the horizontal seal unit 34 (and the clip unit 45) starts to descend (movement in the Y direction in FIG. 9).

  When the descending speed of the horizontal seal unit 34 matches the traveling speed of the laminated film 7, the clip unit 45 is turned ON (compressed air supply) in step S2 to close the clip claw 45a. The both side edges of the laminated film 7 are sandwiched between the clip unit 45 on the upper side and the lower side of the seal roll 31, respectively. Then, in step S4, the air cylinder 46 for inserting the clip unit 45 is turned off (compressed air supply is stopped). In step S5, the clip units 45 paired by the compression springs 47 for returning the clip units 45 are urged in the direction away from each other, and the laminated film 7 is stretched in the width direction (X in FIG. 9). Direction).

  Next, in step S6, among the pair of horizontal seal rolls 31, in FIG. 10 (a), the left roll is rotated clockwise and the right roll is rotated counterclockwise, as shown in FIG. 10 (a). While the pair of horizontal seal bars 30 are positioned to face each other, the air cylinder 33 urges one horizontal seal roll 31 to approach the other horizontal seal roll 31 (Z direction in FIG. 9). In step S7, as shown in FIG. 10B, the laminated film 7 is heated while being sandwiched by the pair of horizontal seal bars 30 while being handled upward by the above-described rotation, and each cylindrical portion of the laminated film 7 is heated. 7b is formed with a horizontal seal portion 7c extending over its entire width, and an object to be packaged sandwiched between the horizontal seal bars 30 is handled from the horizontal seal portion 7c into the upper cylindrical portion 7b to form the horizontal seal portion 7c. In the case of When the luber 30 starts heat sealing with the laminated film 7 sandwiched therebetween, in step S8, the clip unit 45 is turned OFF (compressed air supply is stopped), the clip claw 45a is opened, and the horizontal seal is rotated by the rotation of the horizontal seal roll 31. While allowing the laminated film 7 to be fed to the unit 34, the lowering speed of the horizontal seal unit 34 is delayed by the feed amount of the horizontal seal roll 31.

  In addition, because the viscosity of the article to be packaged is low, the article to be packaged sandwiched between the horizontal seal bars 30 is moved from the horizontal seal part 7c into the upper and lower cylindrical parts 7b simply by sandwiching the laminated film 7 with the horizontal seal bar 30. The laminated film 7 may be heated while being sandwiched between a pair of horizontal seal bars 30 that stop rotating at positions facing each other to form the horizontal seal portion 7c. Heat sealing of the horizontal seal portion 7 c can be performed while keeping the descending speed of the horizontal seal unit 34 coincident with the traveling speed of the laminated film 7.

  Thereafter, in step S9, the air cylinder 46 for inserting the clip unit 45 is turned ON (compressed air supply), and the clip claw 45a is attached to the side edge of the laminated film 7 as shown in FIG. When the horizontal seal unit 34 reaches the predetermined lower limit position in step S10, the lowering of the horizontal seal unit 34 is finished, and in step S11, the horizontal seal unit 34 is started to rise. Then, the horizontal seal unit 34 is returned to the above ascending limit position.

  In this way, during the continuous feeding of the laminated film 7 downward, the formation of the horizontal seal portion 7c over the entire width of each tubular portion 7b of the laminated film 7 by the horizontal seal portion forming portion 4 is repeated. Since the package supply unit 3 allows the same amount of articles to flow from the four filling nozzles 9 into the four cylindrical portions 7b on the upper side of the formed horizontal seal portion 7c, The articles to be packaged that have flowed into the shape portion 7b are sealed by the upper and lower horizontal seal portions 7c, respectively, and sealed by the same amount in the four side-by-side packaging bags 7d.

  By the way, in order to enable the inflow of the same amount of articles to be packaged, the article supply unit 3 is pressurized in the two pressurized main tanks 14 and 15 by the compressed air from the compressed air supply path 18. The packaged material stored in step 1 is transferred into the sealed sub-tank 16 through the packaged product supply path 17 and temporarily stored in the sealed sub-tank 16 in a uniform pressurized state. By opening the two packaged object supply opening / closing valves 29 simultaneously for the same time, the packaged objects are fed out from the sealed sub-tank 16 to the four filling nozzles 9 in equal pressure and in the same amount, and the four filling nozzles 9 The same amount of flow resistance is caused to flow out from the four filling nozzles 9 with the same flow resistance.

  FIG. 11 is a flowchart showing the operation procedure when the packaged article supply unit 3 transfers the packaged goods from the two pressurized main tanks 14 and 15 to the sealed sub-tank 16 together with the operation. When the surface (liquid level) of the object to be packaged in one main tank 14 is lowered to the predetermined lower limit height, in step S22, the level sensor 22 detects the decrease in the liquid level. The on / off valve 24 on the main tank 14 side is turned off (closed), and then the on / off valve 25 on the other main tank 15 side is turned on (opened) in step S24. The package (liquid) flows out to the sealed tank 16. Then, while the other main tank 15 is connected to the hermetic sub-tank 16 in this way, one main tank 14 is filled with an article to be packaged.

  Thereafter, in step S26, when the surface (liquid level) of the object to be packaged in the other main tank 15 is lowered to a predetermined lower limit height, in step S27, the level sensor 23 detects the lowering of the liquid level, thereby step S28. Then, the opening / closing valve 25 on the main tank 15 side is turned off (closed), and then in step S29, the opening / closing valve 24 on the one main tank 14 side is turned on (opened). In step S30, the main tank 14 The packaged material (liquid) inside flows out to the sealed sub tank 16. Then, while one main tank 14 is connected to the hermetic sub-tank 16 in this way, the other main tank 15 is filled with an article to be packaged. That is, the two pressurized main tanks 14 and 15 are selectively connected to the sealed sub tank 16.

  In the carving unit 5, as described above, the four side-by-side packaging bags 7 are made, and the laminated film 7 in a state in which an article to be packaged is filled with each vertical seal portion 7a as in the case of the vertical seal roll 10. While continuously pulling downward by a feed roll (not shown) having an outer peripheral flange to be clamped and driven by a motor, as shown in FIG. 2, it is made to correspond to the center position of each width of the middle three vertical seal portions 7a. The sheet is cut vertically by three cutting blades 48 fixedly arranged on the upper side of the feed roll, whereby the laminated film 7 is cut into four rows of packaging films. Note that the number of rows to be cut can be reduced to two rows or the cut can be stopped by retracting part or all of the three cutting blades 48 according to the required specifications for the packaging bag.

  And in the cutting part 6, the horizontal seal part 7c of the laminated film 7 cut into four or two rows of packaging films, or not cut into pieces and the packaging bags are connected side by side at the center position in the vertical direction, Cut the length of one bag or any number of multiple bags over the entire width. The cutting unit 6 includes a cut unit 49 and a cut unit lifting mechanism 50 that moves the cut unit 49 up and down. The cut unit 49 cuts the lateral seal portion 7c of the laminated film 7 over the entire width. The pair of cut plates 51 for dividing the laminated film 7 into one bag or a plurality of bags and one of the pair of cut plates 51 are fixedly supported and the other cut plate 51 is used as one cut plate. A cut plate support frame 52 having a box shape as viewed from above, which is supported so as to be movable back and forth with respect to 51, and one of the cut plates 51 of the pair of cut plates 51 so that the cut plates 51 are in contact with or slid with each other And a pair of air cylinders 53 for moving 51 forward and backward.

  Similarly to the horizontal seal unit lifting mechanism 35, the cut unit lifting mechanism 50 includes a ball screw shaft (not shown) screwed into a ball nut fixed to the cut plate support frame 52, and a belt-type transmission mechanism 54. And a pair of guide rails (not shown) for guiding the up-and-down movement of the cut plate support frame 52. The rotation of the ball screw shaft by the motor 55 causes the cut plate support frame 52 to move. The cutting part 6 can be moved up and down at an arbitrary speed, so that the cutting unit 6 moves up and down one of the pair of cut plates 51 and at the same time performs a so-called box motion on the other, thereby continuously moving the laminated film 7 downward. The horizontal seal portion 7c can be cut one after another according to the above.

  Therefore, according to the vertical multiple-row filling and packaging apparatus of this embodiment, a large number of packaging bags 7d can be continuously filled in four rows in parallel, and the laminated film can be formed after the formation of the lateral seal portion 7c. 7 is divided into a plurality of rows of packaging bags 7d, so that accurate guidance of the laminated film 7 can be easily performed when the vertical seal portion 7a is formed, and the occurrence of a seal failure in the vertical seal portion 7a is effectively avoided. can do.

  Moreover, even if the cut portion 5 is provided on the downstream side of the horizontal seal bar 30 as described above, the film tension unit 36 positioned on the upper side and the lower side of the horizontal seal bar 30 is laminated film when the horizontal seal bar 30 is heated and sealed. Since the laminated film 7 is pulled in the width direction while moving downward together with the sheet 7, the horizontal seal bar 30 performs heat sealing in a state where the entire laminated film 7 is expanded laterally to near the original width. Therefore, there is little or no vertical wrinkle in the horizontal seal portion 7c. Therefore, the appearance of the packaging bag 7d due to vertical wrinkles, the leakage of the package due to insufficient sealing strength due to vertical wrinkles, or the packaging bag 7d. Breaking can be avoided effectively.

  Further, according to the vertical multiple-row filling and packaging apparatus of this embodiment, the film pulling unit 36 is positioned on the upper side and the lower side of the horizontal seal bar 30, respectively, and the laminated film 7 on the upper side and the lower side of the horizontal seal bar 30. Since the film is pulled in the width direction, the laminated film 7 at the position of the horizontal seal bar 30 can be sufficiently pulled in the width direction, thereby preventing the occurrence of vertical wrinkles.

  Furthermore, according to the vertical multiple-row filling and packaging apparatus of this embodiment, the film tension unit 36 includes a pair of clip units 45 that sandwich and release both side edges of the laminated film 7 in the width direction, and a clip that forms the pair. Since it has the air cylinder 46 and the compression spring 47 which horizontally move the unit 45 in the approaching and separating directions, the laminated film 7 can be easily expanded laterally to near the original width by pulling in the width direction. it can.

  Furthermore, according to the vertical type multi-row filling and packaging apparatus of this embodiment, the horizontal seal unit lifting mechanism 35 moves the horizontal seal unit 34 and thus the horizontal seal bar 30 together with the film pulling unit 36 downward. Since the film seal unit 36 can be disposed in the immediate vicinity of the horizontal seal bar 30 since the heat sealing of the horizontal seal portion 7c is performed while moving downward, the laminated film 7 at the position of the horizontal seal bar 30 is arranged in the width direction. Can be pulled more reliably. Further, since the laminated film 7 can be made while continuously running, a large number of packaging bags 7d can be easily made at high speed, and the laminated film 7 can be made intermittently while making the bag. Even when the laminated film 7 is running, heat sealing can be performed with the horizontal seal bar 30 while the laminated film 7 is traveling, so that sufficient heat sealing time is secured in the horizontal seal bar 30 and the sealing strength of the horizontal seal portion 7c is sufficiently secured. Can be increased.

  Further, according to the vertical multiple-row filling and packaging apparatus of this embodiment, the horizontal seal bar 30 is provided on the pair of horizontal seal rolls 31, and the horizontal seal unit lifting mechanism 35 is provided with the horizontal seal unit 34 and thus the horizontal seal. Since the roll 31 is moved downward together with the film pulling unit 36, the heat sealing time at the horizontal seal bar 30 can be set independently of the traveling speed of the laminated film 7 by the rotation of the horizontal seal roll 31. The degree of freedom of the seal specifications such as the material of 7 and the traveling speed and the type of the package can be increased, and the package to be sandwiched between the horizontal seal portions 7c is moved upward by the rotation operation of the pair of horizontal seal bars 30. Can be handled.

  Furthermore, in the vertical multi-row filling and packaging apparatus of this embodiment, the main tanks 14 and 15 for storing the articles to be packaged store the articles to be sent to the pressurizing subtank 16, and the subtank 16 is Located above the portion where the four rows of cylindrical portions 7b are formed in the laminated film 7, the articles to be packaged supplied from the main tanks 14 and 15 are temporarily stored in a pressurized state, and the flow resistance is mutually reduced. Four equal filling nozzles 9 are connected to the sub-tank 16 to supply the packaged articles from above into the four rows of cylindrical portions 7b.

  Therefore, according to the vertical multi-row filling and packaging apparatus of this embodiment, the articles to be packaged are sent from the main tanks 14 and 15 to the sub tank 16, so that the sub tank 16 is continuously enlarged without increasing the overall height of the apparatus. Since the operation time can be extended and the four filling nozzles 9 having the same flow resistance are connected to the sub-tank 16, the articles to be packaged are supplied into the four rows of cylindrical portions 7b from above. It is possible to supply the articles to be packaged by the same amount without variation between the four rows of cylindrical portions 7b.

  Further, according to the vertical multiple-row filling and packaging apparatus of this embodiment, the main tanks 14 and 15 are also hermetically sealed, and the objects to be packaged are transferred to the sub tank 16 by being pressurized, so that the objects to be packaged are Since the pump is not used for the transfer, the quality change of the packaging object due to the frictional heat of the pump or the stirring can be prevented.

  In the vertical multiple-row filling and packaging apparatus of this embodiment, two main tanks 14 and 15 are provided, and the main tanks 14 and 15 are selectively connected to the sub-tank 16 to transfer an object to be packaged to the sub-tank. Therefore, since the main tanks 14 and 15 that are not connected to the sub tank 16 can be filled with the articles to be packaged, the continuous operation time can be further increased.

  While the present invention has been described based on the illustrated examples, the present invention is not limited to the above-described examples, and can be appropriately changed within the scope of the claims. The structure can be appropriately selected from known ones according to the type and amount of the objects to be packaged, and the number of rows of the cylindrical portions 7b can be appropriately selected as necessary. In addition, the film stacking portion 1 is a method in which the two long laminated films 7 that are continuously fed from the two film rolls R and run are sandwiched by two rollers 8 and partially overlapped. One long laminated film 7 fed out from one film roll R may be folded in the width direction and overlapped.

  Further, the horizontal seal portion forming unit 4 does not have the horizontal seal roll 31 for rotating the horizontal seal bar 30, and one or both of the pair of horizontal seal bars 30 are boxed by the air cylinder 33 and the horizontal seal unit lifting mechanism 35. The cutting unit 5 may cut the packaging bag 7d in each row at the position of the vertical seal portion 7a by retreating the cutting blade 48 depending on the specification required by the customer or the subsequent process. In addition to being left in a horizontal connection, a cutter for forming a perforation or a vertical groove may be provided instead of the cutting blade 48 or in exchange for it so that it can be easily cut later.

  And the to-be-packaged supply part 3 may have many more pressurization type main tanks instead of the two main tanks 14 and 15, or has one larger pressurization type main tank. In addition, the main tank for transferring the packaged object to the sub tank 16 by a pump may be provided instead of the pressurization type.

  Thus, according to the vertical multi-row filling and packaging apparatus of the present invention, since the laminated film is cut into a plurality of rows of packaging bags after the horizontal sealing, accurate guidance of the laminated film and the laminated film when forming the vertical seal portion are provided. The vertical seal portion can be easily formed by folding it back, and the occurrence of a seal failure in the vertical seal portion can be effectively avoided, and the cut portion can be provided downstream of the horizontal seal bar. In the case of heat sealing with the horizontal seal bar, the film pulling means located on at least one of the upper side and the lower side of the horizontal seal bar is moving downward with the laminated film while pulling the laminated film in its width direction. Since the horizontal seal bar performs heat sealing in the state where the entire laminated film spreads laterally close to the original width, there are almost no vertical wrinkles in the horizontal seal part or Not enter Geez, can be effectively avoided and therefore the vertical wrinkles by packing bags appearance defects and, the leakage or breakage of the bag of the package due to the lack of seal strength due to the vertical wrinkles.

  In addition, according to the vertical multiple-row filling and packaging apparatus of the present invention, the articles to be packaged are sent from the main tank to the sub tank, so that the continuous operation time can be extended for a long time without enlarging the sub tank and increasing the overall height of the apparatus. In addition, a plurality of filling nozzles having the same flow resistance can be connected to the sealed sub-tank to feed the packaged objects from above into the plurality of rows of cylindrical portions. The packaged items can be supplied in the same amount without variation.

DESCRIPTION OF SYMBOLS 1 Film overlap part 2 Vertical seal part formation part 3 Package supply part 4 Horizontal seal part formation part 5 Carving part 6 Cutting part 7 Laminated film 7a Vertical seal part 7b Cylindrical part 7c Horizontal seal part 7d Packaging bag 8 Roller 9 Filling Nozzle 10 Vertical seal roll 11 Feed roll 12 Motor 13 Air cylinder 14, 15 Main tank 16 Sub tank 17 Package supply path 18 Compressed air supply path 19 Air discharge path 20, 21 Air on-off valve 22, 23 Liquid level sensor 24, 25 Main tank switching valve 26, 29 Packaged object supply opening / closing valve 27, 28 Air vent valve 30 Horizontal seal bar 31 Horizontal seal roll 32 Horizontal seal roll support frame 33 Air cylinder 34 Horizontal seal unit 35 Horizontal seal unit lifting mechanism 36 Film tension unit 37 Ball screw shaft 38 Belt type Moving mechanism 39 Motor 40 Guide rail 41 Bracket 42, 44 Guide rod 43 Slider 45 Clip unit 45a Clip claw 46 Air cylinder 47 Compression spring 48 Cutting blade 49 Cut unit 50 Cut unit lifting mechanism 51 Cut plate 52 Cut plate support frame 53 Air cylinder 54 Belt type transmission mechanism 55 Motor R Film roll

Claims (6)

While a single long laminated film folded in the width direction or two long laminated films stacked on each other are continuously or intermittently run from top to bottom, the laminated film is moved in the longitudinal direction. By forming a continuous vertical seal portion by heat sealing, a cylindrical portion parallel to the laminated film is formed in a plurality of rows, and these cylindrical portions are heated and sealed with a horizontal seal bar in the width direction. A large number of packaging bags are formed by repeatedly forming a horizontal seal portion over the entire width of each cylindrical portion at intervals in the longitudinal direction, and one horizontal seal to the cylindrical portions of each row A plurality of vertical types that fill the packaging bag with the articles to be packaged by supplying the articles to be packaged from above to the cylindrical sections of each row between the formation of the part and the formation of the horizontal seal part above the part. In the row filling and packaging device,
A film which is positioned on at least one of the upper side and the lower side of the horizontal seal bar and pulls the laminated film in the width direction while moving downward together with the laminated film while the horizontal seal bar is performing the heat sealing. Tension means;
Elevating and moving means for moving the film pulling means up and down;
Positioning means for dividing the laminated film in which the horizontal seal portion is formed in each cylindrical portion into the plurality of rows, located below the horizontal seal bar;
The equipped,
The horizontal seal bar is provided in a pair of horizontal seal rolls and performs heat sealing with the laminated film sandwiched by rotation of the horizontal seal roll while moving downward together with the horizontal seal roll,
The elevating and moving means moves the horizontal seal roll provided with the horizontal seal bar downward together with the film pulling means,
The vertical multi-row filling and packaging apparatus , wherein the film pulling means releases the laminated film during heat sealing by the horizontal seal bar .   2. The vertical multi-row filling and packaging apparatus according to claim 1, wherein the film pulling means is located on an upper side and a lower side of the horizontal seal bar, respectively. The film pulling means is
A pair of clamping means for clamping and releasing both side edges in the width direction of the laminated film;
Horizontal moving means for horizontally moving the pair of clamping means toward and away from each other;
The vertical multi-row filling and packaging apparatus according to claim 1 or 2, characterized by comprising: A main tank for storing the packaged items;
A hermetically sealed tank that is located above the portion that forms the plurality of rows of cylindrical portions, and that temporarily stores the articles to be packaged supplied from the main tank in a pressurized state;
A plurality of filling nozzles connected to the hermetically sealed tank and supplying articles to be packaged from above into the plurality of rows of cylindrical portions, and having equal flow path resistances;
The vertical multi-row filling and packaging apparatus according to any one of claims 1 to 3 , further comprising: 5. The vertical multi-row filling and packaging apparatus according to claim 4, wherein the main tank is also hermetically sealed, and the packaged material is transferred to the hermetically sealed tank by pressurizing the inside thereof. 6. The plurality of vertical tanks according to claim 4 or 5, wherein a plurality of the main tanks are provided, and the main tanks are selectively connected to the sealed tank to transfer the packaged items to the sealed tank. Row filling packaging equipment.

Images