JPWO2016035773A1 - Filling and packaging method and filling and packaging machine for liquid packages - Google Patents

Abstract

The present invention provides a laterally sealed portion capable of filling a liquid packaged product without causing air bubbles or granular materials contained in the liquid packaged product to be bitten into the laterally sealed portion and improving productivity. A forming method and a filling and packaging machine using the method are provided. A packaging film to be fed out is folded back at the center, and a side seal is provided with a vertical seal to form a cylinder, and the cylindrical packaging film is filled with a liquid package, A method of forming a horizontal seal portion with a horizontal seal roll, wherein the tube is formed by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll. Pressing at least the folded side portion of the wrapping packaging film, and forming a horizontal seal portion at the pressing position by the pair of horizontal seal rolls. [Selection] Figure 2

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling and packaging method for a liquid package and a filling and packaging machine using the method, and more particularly, a filling and packaging method and a filling and packaging machine capable of preventing biting of a liquid package into a lateral seal portion. About.

  In recent years, automatic filling and packaging of liquid products such as foods and drinks, seasoning liquids, pharmaceuticals, and cosmetics, viscous materials or powders, granular materials, and other objects to be packaged with a soft packaging film has been widely performed.

  Such an automatic filling and packaging machine for an article to be packaged is, for example, a packaging film having a laminated structure of a uniaxial or biaxially stretched base film layer and an unstretched sealant layer, as described in Patent Document 1, Or, a packaging film that has a single-layer structure in which a heat-sensitive adhesive layer is part-coated on the base film layer is folded at the center so that the sealant layer or the heat-sensitive adhesive layer is on the inside, and the side edges of the folded film are overlapped, The packaging film is formed into a cylindrical shape by forming the vertical seal portion extending in the longitudinal direction while being welded to each other by heating and pressurizing with a pair of vertical seal rolls.

  Next, the cylindrically formed film is heated and pressurized sequentially by a plurality of heat seal bars positioned at equal intervals in the circumferential direction around each of the pair of horizontal seal rolls of the horizontal seal device. The packaging bags are made by feeding them downward while being welded to each other and forming intermittently spaced transverse portions in the longitudinal direction of the packaging film in the width direction of the cylindrical packaging film. . At this time, an article to be packaged is continuously supplied into the packaging film or intermittently from the formation of one horizontal seal portion to the next horizontal seal portion on the cylindrical packaging film. In this way, each package bag is filled with an item to be packaged, and the intermediate portion of the lateral seal portion of the continuously manufactured packaging bag is cut by a cutting mechanism, and the package is carried out in a continuous package of single or multiple packages. To do.

JP 04-114841 A

  In such a conventional filling and packaging machine, when the lateral seal portion is formed by the pair of lateral seal rolls as described above, the folded side portion of the packaging film forms the one horizontal seal portion, and then the next Before the horizontal seal part is formed, it is swelled by the spring back, and the filled liquid package is sucked up along the folded side by capillary action and is bitten in the next horizontal seal part. There was a risk of poor sealing.

  In addition, when forming the horizontal seal portion, the lateral seal is applied while extruding the package in the cylindrical packaging film with the heat seal bar of the horizontal seal roll, so that the bite into the horizontal seal portion of the package is applied. However, it is not sufficient, and in particular, if the package includes a granular material such as a dressing, the granular material cannot be extruded with a heat seal bar. There is a risk of being caught in the seal portion. If particulate matter or the like is caught in the lateral seal portion in this way, not only the appearance is impaired, but also foaming occurs to cause a seal failure, and the packaged article may leak out.

  Therefore, in the case of filling and packaging a packaged article including a granular material in particular, from the formation of one horizontal seal part to the cylindrical packaging film as described above, from the formation of the next horizontal seal part. In the meantime, the packing material is intermittently filled to prevent the biting of the granular material into the horizontal seal portion. However, this method is more productive than the case where the packing material is continuously filled. There was a problem that would be extremely reduced.

  Therefore, in the present invention, the liquid package can be filled without bubbles or particles contained in the liquid package being bitten into the horizontal seal portion, and the productivity can be improved. It is an object of the present invention to provide a filling and packaging method for an article to be packaged and a filling and packaging machine using the method.

  In the research for realizing the above object, the inventor wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and wraps the packaging film on the side edge portion. A longitudinal seal portion is formed in the longitudinal direction of the film for making a cylinder, the liquid packaging material is filled in the tubular packaging film, and perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls A method for filling and packaging a liquid package in a packaging film by forming a transverse seal portion extending across the entire width of the packaging film, and at least a folded side of the cylindrical packaging film Of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, by pressing means provided between the heat seal bars, the press position , It found that filling and packaging method of the liquid to be packaged, characterized in that to form the transverse seal portion by the pair of lateral seal rolls is valid and led to the development of the present invention.

  The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the tubular packaging film is arranged in the circumferential direction of the lateral seal roll A plurality of heat seal bars positioned at equal intervals, and by pressing the pressing means provided between the heat seal bars, and in the running direction of the packaging film, At a position before the seal roll, both side surfaces of the cylindrical packaging film are sandwiched by the squeezing means to intermittently squeeze the liquid package, and the working position of the packaging film by the pressing means and the squeezing means In addition, the present invention proposes a filling and packaging method for a liquid article, wherein a horizontal seal portion is formed by the pair of horizontal seal rolls.

In addition, about the filling packaging method of the said liquid to-be-packaged material of this invention, it becomes a more preferable solution means to set it as the following structures further. That is,
(1) The presser means comprises a presser bar that presses the tubular packaging film over its entire width.
(2) The presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
(3) The diaphragm means comprises a pair of diaphragm plates;
(4) The pair of diaphragms are displaced to positions close to or away from each other based on the type and filling conditions of the packaging film,
(5) At least one of the pair of diaphragm plates has a gas outlet at the tip, and the liquid packaging is interposed in the cylindrical packaging film by the pressure of the gas blown out from the gas outlet. Squeezing things,
It is.

  The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. A transverse sealing means comprising a pair of lateral seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. A holding means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars of a plurality of heat seal bars positioned at equal intervals. To propose a filling and packaging machine according to claim.

  The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. Thus, it is common to have a squeezing means that is positioned in front of the horizontal seal roll so as to sandwich both side surfaces of the cylindrical packaging film and can be displaced in the direction of approaching and separating from each other. And a pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll. A filling and packaging machine is proposed.

In the filling and packaging machine of the present invention, the following configuration is a more preferable solution. That is,
(1) The presser means comprises a presser bar that presses the tubular packaging film over its entire width.
(2) The presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
(3) The diaphragm means comprises a pair of diaphragm plates;
(4) At least one of the pair of diaphragms has a gas outlet at the tip.
(5) The presser plate is configured to be position-adjustable according to the film width of the tubular packaging film,
(6) The pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the tubular packaging film,
(7) The presser bar is provided adjacent to the heat seal bar on the front side in the rotational direction of each heat seal bar of the horizontal seal roll;
It is.

  In the filling and packaging method of the liquid package according to the present invention and the filling and packaging machine using the method, at least the folding side of the packaging film is provided between the plurality of heat seal bars provided on the peripheral surface of the transverse seal roll. By providing the pressing means for pressing the portion to be pressed, the folded-back side portion of the packaging film from the one horizontal seal portion to the next horizontal seal portion is swelled by the spring back. Since it can prevent, it can prevent effectively that the filled liquid to-be-packaged object is sucked up in the next horizontal seal part along this folding | turning edge part.

  In the present invention, after the packaging film is folded in two, a vertical seal portion is formed on the side edge portion to form a tubular shape, and the tubular packaging film (hereinafter referred to as “tubular film”). When filling and packaging a liquid package in the inside, the tubular film is intermittently sandwiched (squeezed out) from both sides by a squeezing means, and inside the cylindrical film of the liquid package to be supplied from the filling nozzle Temporarily prevent progress in Thereby, on the lower side of the squeezing means, a portion where the liquid package is not interposed is intermittently formed, and in this portion, a lateral seal portion is formed by a pair of lateral seal rolls, It is possible to effectively prevent the liquid packaging material, particularly the granular material contained in the liquid packaging material, from entering the horizontal seal portion. Therefore, even if the liquid package includes particulates, the granular material does not get caught in the horizontal seal portion, and the liquid package is continuously filled and packed by submerged seal filling. Therefore, productivity can be improved.

  The throttle means is preferably composed of a pair of diaphragm plates, and a gas film is provided at the tip of at least one of the pair of diaphragm plates, and the tubular film is formed by the pressure of the gas blown from the gas nozzle. Is oscillated to squeeze out liquid substances, granular substances, and the like intervening in the tubular film, and thereby the biting of the liquid package into the horizontal seal portion can be further effectively suppressed. Furthermore, by utilizing the pressure of the gas, the tubular film can be directly sandwiched by the diaphragm plate to assist the squeezing operation, and there is no possibility that the tubular film is damaged due to an increase in slipperiness.

  Further, in the case where the holding means is formed of a holding plate that holds the folded side portion of the tubular packaging film over its entire length, entry of the liquid article to the folded side portion is completely prevented. In the case where there is no possibility that the liquid package is sucked up into the lateral seal portion along the folded side portion, while the holding means is composed of a holding bar that holds the tubular packaging film over its entire width, The liquid package filled over the entire width of the packaging film as well as the side portions is prevented from being sucked up along the inner wall surface of the packaging film. Can be prevented. Furthermore, when both the above-described presser plate and the presser bar are provided as the presser means, the effect of suppressing biting into the lateral seal portion can be more effectively exhibited.

  In the present invention, the pair of diaphragms can be displaced to positions close to or away from each other based on the type of packaging film and filling conditions, and the presser plate is positioned according to the film width of the tubular film. By being able to adjust, regardless of the thickness of the packaging film, the type of the liquid package, the capacity of the package, etc., it can be effectively used for the production of various packages.

  In addition, the pressing width in the axial direction of the horizontal seal roll by the pressing plate is set to 1 to 50% of the tubular film width, and the press bar is provided adjacent to the heat seal bar of the horizontal seal roll. Thus, the filling of the liquid packaging material into the packaging film is not obstructed, and the internal volume of the packaging bag is not excessively reduced. It is possible to reliably prevent the liquid package from biting into the seal portion.

It is a schematic diagram which shows the structure of the vertical filling packaging machine as one Example of the filling packaging machine of this invention. It is one Embodiment of the perspective view which expands and shows the horizontal seal | sticker part formation part of a filling packaging machine. It is other embodiment which expands and shows the horizontal seal | sticker part formation part of a filling packaging machine, (a) is a perspective view, (b) is an end view in an AA position. It is explanatory drawing which shows the filling method of the liquid package by the horizontal seal | sticker part formation part of the filling packaging machine of embodiment shown in FIG. 2, (a) is the state with which the liquid package was filled in the cylindrical film (B) has shown the state by which the cylindrical film was narrowed down by a pair of aperture plate, (c) has shown the state by which the horizontal seal part was formed in the cylindrical film by a pair of horizontal seal roll.

An embodiment of the present invention will be described below based on the drawings.
FIG. 1 is a schematic diagram showing the configuration of a vertical filling and packaging machine as an embodiment of the filling and packaging machine of the present invention.

  This vertical filling and packaging machine is formed by laminating 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. While running a long packaging film made of the laminated film in the longitudinal direction, the sheet is folded back in the width direction so that the sealant layers face each other, and both side edges are overlapped with each other. While making a large number of packaging bags from packaging film, each package bag automatically loads foods, seasonings, pharmaceuticals, cosmetics and other liquid or viscous or jelly-like fluid materials. Filling. As shown in FIG. 1, the vertical filling and packaging machine mainly includes a film folding portion 1, a vertical seal portion forming portion 2, an article supply portion 3, a first horizontal seal portion forming portion 4 a, 2 side seal part forming part 4b, and the cutting part 5 which cut | disconnects a packaging bag for each single package or multiple packages. Hereinafter, a case where a liquid package including a granular material or the like is used as the package will be described as an example.

  In the film folding section 1 of FIG. 1, while a single long packaging film 6 fed out from a film roll R continuously or intermittently travels from the top to the bottom, it is U-shaped and reversed during the travel. While being guided by two L-shaped guide rods 7, the packaging film 6 is folded back in the width direction so that the sealant layers face each other, and in the figure, the both sides located at the left end of the packaging film 6. Overlapping edges.

  In the vertical seal portion forming portion 2, both side edges of the packaging film 6 folded and overlapped are heated and pressurized in the longitudinal direction (vertical direction) of the packaging film 6 by a pair of vertical seal rolls 8 to vertically seal. A portion 13 is formed, thereby forming a tubular film 15 in which the packaging film 6 is formed into a tubular shape.

  The vertical seal portion forming portion 2 includes a pair of vertical seal rolls 8 that are arranged in a direction perpendicular to the paper surface and extend in parallel with each other in the drawing, and a gear set (not shown) for the pair of vertical seal rolls 8. The motor 9 that is rotationally driven in the opposite direction and at the same speed via the two, and both ends of the support shaft of the vertical seal roll 8 are supported so as to bias the pair of vertical seal rolls 8 toward each other. And a pair of air cylinders 10 provided in the bearing portion.

  Here, each of the pair of vertical seal rolls 8 has one annular flange 8a on the outer peripheral surface thereof, and a heater (not shown) for heating the annular flange 8a therein, and the pair of air cylinders 10 described above. The two side edges of the cylindrical film 15 are heated by the heat transmitted from the heater to the annular flange 8a while being pressed between the annular flanges 8a by pressing the opposite side edges of the tubular film 15 by the pressing force of While the sealant layers of the portions are welded together to form the vertical seal portion 13, the cylindrical film 15 is caused to travel downward by the rotation.

  In the package supply unit 3, the liquid package M supplied from a tank (not shown) through a pump (not shown) and a supply path passes through the pair of vertical seal rolls 8 from above to below. The filling nozzle 11 fills the inside of the tubular film 15 by a predetermined amount.

  In the first horizontal seal portion forming portion 4a, the cylindrical film 15 is heated at a constant interval in the longitudinal direction while being heated over the entire width by a pair of horizontal seal rolls 12, and welded to each other intermittently. A lateral seal portion 14 is formed. Thereafter, in the second horizontal seal portion forming portion 4b, the horizontal seal portion 14 is re-pressed to secure the seal, whereby a large number of packaging bags W are connected in the longitudinal direction of the tubular film 15. Make a bag. Next, individual packaging bags W are obtained by cutting the substantially intermediate portion of the lateral seal portion 14 of the continuous packaging bags W by the cutting portion 5.

  The pair of horizontal seal rolls 12 in the first and second horizontal seal portion forming portions 4a and 4b are driven to rotate at opposite speeds at a constant speed by a motor via a gear set, and the first horizontal seal roll 12 is rotated. As representatively showing the portion forming portion 4a in an enlarged manner in FIG. 2, a plurality (four in the figure) of heat seal bars 12a extending in the axial direction are arranged on the outer peripheral surface at equal intervals in the circumferential direction. The horizontal seal portion 14 is formed or reinforced by sandwiching the tubular film 15 by the heat seal bar 12a. Each horizontal seal roll 12 has a built-in heater for heating the heat seal bar 12a.

In this filling and packaging machine, as shown in FIG. 2, at least between the plurality of (four in the figure) heat seal bars 12 a of the pair of horizontal seal rolls 12, the corrugated side corresponds to at least the folded side 6 a of the tubular film 15. This is characterized in that a pressing means 17 for pressing the portion to be pressed is provided. FIG. 2 shows a case where the presser means 17 includes presser plates 18a and 18b having partial cylindrical surfaces that press the folded side 6a portion of the tubular film 15 over its entire length as an embodiment.
According to the holding plates 18a and 18b, at least a portion including the folded side 6a of the tubular film 15 after one horizontal sealing by the pair of heat seal bars 12a is partially pressed. The folded side 6a between the seal portions 14 does not return (expand) to the original shape by the spring back over the entire length. Accordingly, the liquid package to be packed in the cylindrical film 15 after one horizontal seal is not sucked up along the folded side 6a, and the liquid package is bitten in the next horizontal seal portion 14. There is no fear of it. FIG. 2 shows a case where the packaging bag W is formed of a three-side seal bag. However, the presser plates 18a and 18b are preferably used for a bag that is folded on both sides, such as a back-sealed seal bag. be able to.

  The press plates 18a and 18b only need to be able to press at least the folded side 6a of the tubular film 15, and preferably have a partial cylindrical surface as shown in FIG. The pressing plates 18 a and 18 b preferably have a pressing width in the axial direction of the horizontal seal roll 12 of 1 to 50%, more preferably 1 to 20% of the film width of the tubular film 15. This is to ensure an appropriate and necessary filling volume, and according to this, the presser plates 18a and 18b do not get in the way when filling the liquid package, and the packaging bag. The folded side 6a of the tubular film 15 can be reliably pressed without excessively reducing the inner volume of the tube film 15. Moreover, it is preferable that the plate | board width | variety of the axial direction of the horizontal seal roll 12 of the pressing plates 18a and 18b is 1 to 80% of the width | variety of the heat seal bar 12a.

  Further, since the holding plates 18a and 18b can be easily attached between the heat seal bars 12a with screws, bolts, etc., maintenance is easy and the holding plates 18a and 18b are attached to the film width of the tubular film 15. By adjusting the installation position according to the above, it can be used for manufacturing various packages. Further, the height can be appropriately adjusted by sandwiching shims between the press plates 18 a and 18 b and the roll surface of the horizontal seal roll 12.

  FIG. 3 shows another embodiment of the horizontal seal portion forming portion, in which the pressing means 17 includes presser bars 19a and 19b. FIG. 3 (a) is a perspective view and FIG. 3 (b) is FIG. 3 (a). It is an end elevation in the AA position. The presser bars 19a and 19b are provided adjacent to the heat seal bar 12a at a position in front of the rotation direction of each heat seal bar 12a, preferably at a position 0.1 to 30 mm away from the heat seal bar 12a, more preferably Provided at a position 0.1 to 15 mm apart. In the figure, the presser bars 19a and 19b are provided in parallel with the heat seal bar 12a. However, the present invention is not limited to this, and the heat seal bar 12a is provided in accordance with the viscosity or the filling amount of the liquid package. On the other hand, it may be provided obliquely so that the tubular film 15 can be appropriately pressed. Moreover, if the width of the press bar 19a, 19b in the axial direction of the horizontal seal roll 12 is substantially the same as that of the heat seal bar 12a, the tubular film 15 can be pressed over the entire width, so that one horizontal seal It is possible to prevent the liquid package filled in the cylindrical film 15 after the formation of the portion 14 from being sucked up along the inner wall surface of the cylindrical film 15 as well as the folded side 6a. It is possible to effectively suppress the liquid package from being bitten in the container 14. Note that the presser bars 19a and 19b can exhibit the same effect in a four-side sealed bag as well as a folded bag such as a three-side sealed bag and a back-sealed seal bag.

  The presser bars 19a and 19b have a surface shape that is circular as shown in FIG. 3, or a flat shape or a chevron shape. Is preferably −2 to +5 mm, more preferably 0 to +2 mm with respect to the height of the heat seal bar 12a. According to this, since the packaging film can be surely pressed, it is possible to effectively prevent the liquid package to be packed in the cylindrical film 15 from being sucked up to the next position of the lateral seal portion 14. Can do.

  The presser bars 19a and 19b can be formed of Teflon (registered trademark), silicon, plastic, elastic metal, or the like. However, since the presser bars 19a and 19b are provided adjacent to the heat seal bar 12a, a material having heat insulation properties. Preferably it consists of.

  Furthermore, the width of the presser bars 19a and 19b in the traveling direction of the tubular film 15 is preferably 0.5 to 50 mm, more preferably 2 to 10 mm. According to this, the cylindrical film 15 can be reliably pressed down over the entire width without excessively reducing the internal volume of the packaging bag.

  In addition, as the pressing means 17, the pressing plates 18a and 18b and the pressing bars 19a and 19b may be provided together. In this case, the liquid package to be filled in the tubular film 15 is provided with the folded sides 6a and Suctioning along the inner wall surface of the tubular film 15 can be more effectively prevented, and the liquid package can be effectively suppressed from being bitten into the next horizontal seal portion 14. it can.

  Further, in this filling and packaging machine, as shown in FIG. 2, in the traveling direction of the tubular film 15, the formation position of the lateral seal portion 14 by the pair of lateral seal rolls 12 of the first lateral seal portion forming portion 4 a is determined. It is preferable to provide the throttle means 16 in front. The diaphragm means 16 preferably uses a pair of diaphragm plates 16a and 16b shown in FIG. 2, but any other means can be used as long as the traveling cylindrical film 15 such as a pair of diaphragm rolls can be narrowed from both sides. It may be a mechanism.

The pair of diaphragm plates 16a and 16b as the diaphragm means 16 are arranged so as to sandwich the side surface of the cylindrical film 15, and the diaphragm plates 16a and 16b intermittently pass through both sides of the cylindrical film 15 at a required timing. By being sandwiched (squeezed), it functions to temporarily prevent the liquid package to be filled from descending in the tubular film 15.
The squeezing means 16 also has a function of squeezing out air contained in the liquid package and a function of stabilizing the shape of the packaging bag and the filling amount of the package.

  Due to the above function of the squeezing means 16, the liquid film and the granular material are prevented from descending in the tubular film 15 below the squeezing means 16, and portions where they are not interposed are intermittently formed. Thus, by forming the horizontal seal portion 14 at this portion by the horizontal seal roll 12 at the subsequent stage, it is possible to effectively prevent the liquid material and the granular material from being caught in the horizontal seal portion 14. Therefore, according to the squeezing means 16, the liquid package can be continuously filled and packaged while preventing biting into the lateral seal portion 14.

The pair of diaphragm plates 16a and 16b are configured to be displaceable by, for example, swinging in a direction in which they are close to each other with the tubular film 15 interposed therebetween and in a direction in which they are separated from each other.
The timing of displacement of the aperture means 16, the closing time (time in which they are close to each other), the opening time (time in which they are separated from each other) and the like are controlled by control means such as a microcomputer. A predetermined calculation based on the input values of the filling conditions such as the packaging form and film configuration of the packaging film 6 inputted by the production condition setting means, the filling amount of the article to be packaged and the feeding speed of the packaging film 6 Calculated by performing processing. The control means may also be used as the control means that functions as the main computer of the filling and packaging machine.

The production condition setting means is composed of an input means such as a numeric keypad and a touch panel integrally provided with a monitor for displaying a set value by the input means, and is a packaging form (packaging bag) of the packaging film 6 of the filling and packaging machine. It is possible to set and change filling conditions such as W length (seal pitch)), film configuration, and film feed speed.
The production condition setting means further includes an operation monitor that displays the displacement operation of the throttle means 16 and the lateral seal speed in a graph over time, so that the displacement state of the throttle means 16 can be confirmed visually and appropriately. The displacement timing, the opening / closing time, the proximity distance of the aperture means 16 and the like can be adjusted (input).
Further, the production condition setting means has storage means such as a backup RAM or EEPROM for storing production conditions corresponding to the type and filling conditions of the packaging film 6.

The diaphragm plates 16a and 16b are made of metal, a low-friction resin material such as Teflon (registered trademark), MC nylon, polyacetal, ultra-high molecular polyethylene, or the like, and are attached to at least one end portion of the pair of diaphragm plates 16. Preferably has a gas outlet. From this gas outlet, incombustible gas such as air or nitrogen is blown out continuously or intermittently toward the tubular film 15 with the diaphragm plate 16 displaced in the closing direction. Liquid matter and granular matter intervening in the cylindrical film 15 are effectively squeezed out by vibration due to pressure. Note that the same effect can be expected regardless of whether the gas blowing direction from the gas blowing port is upward, vertical or downward toward the tubular film 15.
In addition, the effect of squeezing out liquids and particulates due to the gas pressure is effectively exhibited by blowing the gas toward the tubular film 15 from the folded side 6a to a range of at least 30% of the film width. . The gas blowing timing, time, pressure, etc. can be set by the production condition setting means.

Next, a filling and packaging method for a liquid package using the diaphragm plates 16a and 16b will be described with reference to FIG. 4A, 4 </ b> B, and 4 </ b> C, the left side view, the center view, and the right side view are a pair of heat seal rolls 12, diaphragm plates 16 a and 16 b, and a press plate 18 a as a presser unit 17. , 18b are a left side view, a front view (only the rear side is shown in the figure) and a right side view, respectively.
FIG. 4A shows a state in which the horizontal seal portion 14 is formed by the pair of heat seal bars 12 a and the liquid package is filled into the tubular film 15 from the filling nozzle 11. At this time, the pair of diaphragm plates 16a and 16b are in an open position separated from each other. Further, the folded side 6a of the tubular film 15 is in a state where it is started to be pressed by the pressing plates 18a and 18b.
FIG. 4 (b) starts the displacement in the direction in which the pair of diaphragm plates 16a and 16b are close to each other in accordance with instructions from the control means to the diaphragm plates 16a and 16b, and narrows the tubular film 15 from both sides. The state where the fall of the liquid to-be packaged object with the cylindrical film 15 was prevented is shown. During this time, the folded side 6a of the tubular film 15 is in a state in which a part in the longitudinal direction is pressed by the pressing plates 18a and 18b.
FIG. 4 (c) shows that the pair of heat seal bars 12a reach 15 locations of the tubular film where the lowering of the packaged object is blocked in FIG. 14 is formed. In accordance with this timing, the diaphragm plates 16a and 16b start to be displaced in the opening direction in accordance with an instruction from the control means, and the filling of the liquid package into the cylindrical film 15 is resumed.
By repeating the operations shown in FIGS. 4A to 4C, the liquid package can be filled and packaged without being bitten by the horizontal seal portion 14 even when continuously filled.

R Film roll W Packaging bag 1 Film folding part 2 Vertical seal part forming part 3 Package supply part 4a First horizontal seal part forming part 4b Second horizontal seal part forming part 5 Cutting part 6 Packaging film 6a Folding side 7 Guide rod 8 Vertical seal roll 8a Annular flange 9 Motor 10 Air cylinder 11 Filling nozzle 12 Horizontal seal roll 12a Heat seal bar 13 Vertical seal part 14 Horizontal seal part 15 Cylindrical film 16 Diaphragm means 16a, 16b Diaphragm plate 17 Presser means 18a , 18b Presser plates 19a, 19b Presser bar

In the research for realizing the above object, the inventor wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and wraps the packaging film on the side edge portion. A longitudinal seal portion is formed in the longitudinal direction of the film for making a cylinder, the liquid packaging material is filled in the tubular packaging film, and perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls It is a method of filling and packaging a liquid package in a packaging film by forming a horizontal seal portion extending across the entire width of the packaging film, sandwiched in the direction,
At least the folded side of the cylindrical packaging film is pressed by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and the press A horizontal seal portion is formed at the position by the pair of horizontal seal rolls, and the pressing means includes a press bar that presses the tubular packaging film over the entire width, and the roll of the horizontal seal roll of the press bar The maximum height from the shaft surface is in the range of more than 0 mm to +5 mm with respect to the height of the heat seal bar. It came to develop.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the pair of horizontal seal lows A packaging material for filling liquid packaging material, characterized in that a transverse sealing portion is formed by the pressing means, and the holding means comprises a holding plate for pressing the folded portion of the tubular packaging film between the heat seal bars over the entire length. Suggest a method.

The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction. At the position before the horizontal seal roll, the both sides of the cylindrical packaging film are sandwiched by the squeezing means to squeeze out the liquid packaging material intermittently, and the action of the packaging film by the holding means and the squeezing means A horizontal seal portion is formed at the position by the pair of horizontal seal rolls, and the pressing means includes a press bar that presses the tubular packaging film over the entire width, and the roll of the horizontal seal roll of the press bar A method for filling and packaging a liquid article to be packaged, characterized in that the maximum height from the shaft surface is in the range of more than 0 mm to +5 mm with respect to the height of the heat seal bar .
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction. At the position before the horizontal seal roll, the both sides of the cylindrical packaging film are sandwiched by the squeezing means to squeeze out the liquid packaging material intermittently, and the action of the packaging film by the holding means and the squeezing means A horizontal seal portion is formed at the position by the pair of horizontal seal rolls, and the pressing means includes a press plate that presses the folded portion of the tubular packaging film between the heat seal bars over the entire length. We propose a method for filling and packaging liquid packages.

In addition, about the filling packaging method of the said liquid to-be-packaged material of this invention, it becomes a more preferable solution means to set it as the following structures further. That is,
(1) pre-Symbol throttle means, that a pair of diaphragm plates,
( 2 ) The pair of diaphragms are displaced to positions close to or away from each other based on the type and filling condition of the packaging film,
( 3 ) At least one of the pair of diaphragms has a gas outlet at the tip, and the liquid packaging is interposed in the cylindrical packaging film by the pressure of the gas blown out from the gas outlet. Squeezing things,
It is.

The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. A vertical sealing means that extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. In a filling and packaging machine comprising a pair of lateral seal rolls that form a package by laterally sealing at a distance in the longitudinal direction of the horizontal seal rolls, and located at regular intervals in the circumferential direction of the lateral seal rolls the plurality of heat-sealing bars, between the heat seal bar, have a pressing means holds down a portion corresponding to at least the folded edges of the packaging film, the presser means, wherein Becomes Jo of the packaging film from presser bar for pressing over the entire width, the maximum height from the roll axis surface of presser bar the transverse seal rolls is in the range of 0mm super ~ + 5 mm with respect to the heat seal bar height We propose a filling and packaging machine.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. A transverse sealing means comprising a pair of lateral seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. A plurality of heat seal bars located at equal intervals, and between the heat seal bars, there is a pressing means for pressing at least a portion corresponding to the folded side of the packaging film, E means, proposes a filling and packaging machine characterized by comprising the pressing plate for pressing the cylindrical back portion of the packaging film between the heat seal bar over the entire length.

The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. Thus, it is common to have a squeezing means that is positioned in front of the horizontal seal roll so as to sandwich both side surfaces of the cylindrical packaging film and can be displaced in the direction of approaching and separating from each other. , The transverse seal roll peripheral direction of the plurality of heat-sealing bars located at equal intervals, between the heat seal bar, have a pressing means holds down a portion corresponding to at least the folded edges of the packaging film, the The presser means includes a presser bar that presses the tubular packaging film over the entire width, and the maximum height of the presser bar from the roll shaft surface of the horizontal seal roll is greater than 0 mm with respect to the heat seal bar height. A filling and packaging machine characterized by being in the range of +5 mm is proposed.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. Thus, it is common to have a squeezing means that is positioned in front of the horizontal seal roll so as to sandwich both side surfaces of the cylindrical packaging film and can be displaced in the direction of approaching and separating from each other. A pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, Proposed is a filling and packaging machine characterized in that the presser means comprises a presser plate that holds the folded portion of the tubular packaging film between the heat seal bars over its entire length.

In the filling and packaging machine of the present invention, the following configuration is a more preferable solution. That is,
(1) pre-Symbol throttle means, that a pair of diaphragm plates,
( 2 ) At least one of the pair of diaphragms has a gas outlet at the tip.
( 3 ) The presser plate is configured to be position adjustable by the film width of the tubular packaging film,
( 4 ) The pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the tubular packaging film,
( 5 ) The presser bar is provided adjacent to the heat seal bar on the front side in the rotational direction of each heat seal bar of the horizontal seal roll,
It is.

In the research for realizing the above object, the inventor wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and wraps the packaging film on the side edge portion. A longitudinal seal portion is formed in the longitudinal direction of the film for making a cylinder, the liquid packaging material is filled in the tubular packaging film, and perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls It is a method of filling and packaging a liquid package in a packaging film by forming a horizontal seal portion extending across the entire width of the packaging film, sandwiched in the direction,
At least the folded side of the cylindrical packaging film is pressed by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and the press A horizontal seal portion is formed at the position by the pair of horizontal seal rolls, and the presser means includes a presser bar that presses the tubular packaging film over the entire width, and the presser bar has surface shapes on both sides. lowered arcuate, or chevron shaped, the maximum height from the roll axis surface of the lateral seal rolls of that is, with a range of 0mm super ~ + 5 mm with respect to the heat seal bar height, each heat-sealing in the direction of rotation of the front position of the bar, filling and packaging method of a liquid packed material, characterized by being located away 0.1~30mm from the heat seal bar is valid Locate the Rukoto, it was led to the development of the present invention.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the pair of horizontal seal lows A packaging material for filling liquid packaging material, characterized in that a transverse sealing portion is formed by the pressing means, and the holding means comprises a holding plate for pressing the folded portion of the tubular packaging film between the heat seal bars over the entire length. Suggest a method.

The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction. At the position before the horizontal seal roll, the both sides of the cylindrical packaging film are sandwiched by the squeezing means to squeeze out the liquid packaging material intermittently, and the action of the packaging film by the holding means and the squeezing means in position, will form a transverse seal portion by the pair of lateral seal rolls, presser bar, the surface shape bilateral lowered arcuate, or chevron shaped, the roll shaft surface of the lateral seal rolls of their maximum height, the well as a range of 0mm super ~ + 5 mm with respect to the heat seal bar height, in front position in the rotational direction of each Hitoshi ruber, located away 0.1~30mm from the heat seal bar from The present invention proposes a method for filling and packaging a liquid package, which is characterized by the above.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method of filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the cylindrical packaging film is disposed around a circumference of the lateral seal roll. A plurality of heat seal bars positioned at equal intervals in the direction are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction. At the position before the horizontal seal roll, the both sides of the cylindrical packaging film are sandwiched by the squeezing means to squeeze out the liquid packaging material intermittently, and the action of the packaging film by the holding means and the squeezing means A horizontal seal portion is formed at the position by the pair of horizontal seal rolls, and the pressing means includes a press plate that presses the folded portion of the tubular packaging film between the heat seal bars over the entire length. We propose a method for filling and packaging liquid packages.

In addition, about the filling packaging method of the said liquid to-be-packaged material of this invention, it becomes a more preferable solution means to set it as the following structures further. That is,
(1) The diaphragm means comprises a pair of diaphragm plates;
(2) The pair of diaphragms are displaced to positions close to or away from each other based on the type and filling condition of the packaging film,
(3) At least one of the pair of diaphragm plates has a gas blowing port at the tip, and the liquid packaging is interposed in the tubular packaging film by the pressure of the gas blown from the gas blowing port. Squeezing things,
(4) the pressing bar, the width of the running direction of the packaging film is the Dearuko 0.5 to 50 mm,
It is.

The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. A vertical sealing means that extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. In a filling and packaging machine comprising a pair of lateral seal rolls that form a package by laterally sealing at a distance in the longitudinal direction of the horizontal seal rolls, and located at regular intervals in the circumferential direction of the lateral seal rolls A plurality of heat seal bars, each having a pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat sealing bars, the pressing means, Becomes Jo of the packaging film from presser bar for pressing over the entire width, the maximum height from the presser bar, the surface shape bilateral lowered arcuate, or chevron shaped, the transverse sealing roll roll shaft surface in its Is within the range of more than 0 mm to +5 mm with respect to the height of the heat seal bar , and is positioned 0.1 to 30 mm away from the heat seal bar at the front position in the rotation direction of each heat seal bar . We propose a filling and packaging machine characterized by
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. A transverse sealing means comprising a pair of lateral seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. A plurality of heat seal bars located at equal intervals, and between the heat seal bars, there is a pressing means for pressing at least a portion corresponding to the folded side of the packaging film, E means, proposes a filling and packaging machine characterized by comprising the pressing plate for pressing the cylindrical back portion of the packaging film between the heat seal bar over the entire length.

The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. Thus, it is common to have a squeezing means that is positioned in front of the horizontal seal roll so as to sandwich both side surfaces of the cylindrical packaging film and can be displaced in the direction of approaching and separating from each other. A pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, pressing means consists presser bar for pressing over the entire width of the packaging film of the tubular, presser bar, the surface shape on both sides of the lower Therefore arcuate, or chevron shaped, its of said lateral seal rolls highest height from the roll axis surface, with a range of 0mm super ~ + 5 mm with respect to the heat seal bar height, in front position in the rotational direction of the heating Toshiruba, 0.1 to 30 mm from the heat seal bars A filling and packaging machine characterized by being located remotely is proposed.
The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. Thus, it is common to have a squeezing means that is positioned in front of the horizontal seal roll so as to sandwich both side surfaces of the cylindrical packaging film and can be displaced in the direction of approaching and separating from each other. A pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, Proposed is a filling and packaging machine characterized in that the presser means comprises a presser plate that holds the folded portion of the tubular packaging film between the heat seal bars over its entire length.

In the filling and packaging machine of the present invention, the following configuration is a more preferable solution. That is,
(1) The diaphragm means comprises a pair of diaphragm plates;
(2) At least one of the pair of diaphragms has a gas outlet at the tip.
(3) The presser plate is configured to be position-adjustable depending on the film width of the tubular packaging film,
(4) The pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the tubular packaging film,
(5) the pressing bar, the width of the running direction of the packaging film is the Dearuko 0.5 to 50 mm,
It is.

Claims (16)

The packaging film fed out in the longitudinal direction is folded at the center so that the adhesive layer or sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylinder. The horizontal sealing portion that fills the cylindrical packaging film with a liquid object and is sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of lateral seal rolls and extends across the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming
At least the folded side of the cylindrical packaging film is pressed by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and the press A method for filling and packaging a liquid article, wherein a horizontal seal portion is formed at a position by the pair of horizontal seal rolls. The packaging film fed out in the longitudinal direction is folded at the center so that the adhesive layer or sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylinder. The horizontal sealing portion that fills the cylindrical packaging film with a liquid object and is sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of lateral seal rolls and extends across the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming
While pressing at least the folded side of the cylindrical packaging film by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll,
The packaging material is intermittently squeezed by sandwiching both side surfaces of the cylindrical packaging film by a squeezing means at a position in front of the horizontal seal roll in the running direction of the packaging film. A method for filling and packaging a liquid article to be packaged, characterized in that a lateral seal portion is formed by the pair of lateral seal rolls at an operating position of the pressing means and the squeezing means.   The method for filling and packaging a liquid package according to claim 1 or 2, wherein the pressing means comprises a pressing bar that presses the cylindrical packaging film over the entire width.   The method for filling and packaging a liquid package according to claim 1 or 2, wherein the holding means is a holding plate that holds down the folded side portion of the cylindrical packaging film over its entire length.   The method for filling and packaging a liquid article according to any one of claims 2 to 4, wherein the squeezing means comprises a pair of squeezing plates.   6. The filling and packaging method for a liquid package according to claim 5, wherein the pair of diaphragms are displaced to positions close to or away from each other based on the type and filling conditions of the packaging film.   At least one of the pair of squeezing plates has a gas blowout port at the tip, and the liquid packaged material interposed in the cylindrical packaging film is squeezed by the pressure of the gas blown out from the gas blowout port. The method for filling and packaging a liquid package according to claim 5 or 6, wherein: The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. Vertical sealing means to perform,
While filling the cylindrical packaging film with a liquid package, it extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film, and is spaced in the longitudinal direction of the packaging film. A horizontal sealing means comprising a pair of horizontal seal rolls that form a package by applying a horizontal seal;
In a filling and packaging machine comprising:
A plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having presser means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars. Filling and packing machine. The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. Vertical sealing means to perform,
While filling the cylindrical packaging film with a liquid package, it extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film, and is spaced in the longitudinal direction of the packaging film. A horizontal sealing means comprising a pair of horizontal seal rolls that form a package by applying a horizontal seal;
In a filling and packaging machine comprising:
A squeezing means that is positioned so as to sandwich both side surfaces of the cylindrical packaging film at a position in front of the lateral seal roll in the running direction of the packaging film and that can be displaced in the direction of approaching and separating from each other And having
A plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having presser means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars. Filling and packing machine.   The filling and packaging machine according to claim 8 or 9, wherein the presser means includes a presser bar that presses the tubular packaging film over the entire width.   The filling and packaging machine according to claim 8 or 9, wherein the presser means comprises a presser plate that presses a folded side portion of the cylindrical packaging film over its entire length.   The filling and packaging machine according to any one of claims 9 to 11, wherein the squeezing means includes a pair of squeezing plates.   The filling and packaging machine according to claim 12, wherein at least one of the pair of diaphragm plates has a gas outlet at a tip portion.   The filling and packaging machine according to any one of claims 11 to 13, wherein the pressing plate is configured to be position-adjustable depending on a film width of the cylindrical packaging film.   The pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the tubular packaging film, according to any one of claims 11 to 14. Filling packaging machine.   The filling and packaging machine according to claim 10, wherein the presser bar is provided adjacent to the heat seal bar on the front side in the rotation direction of each heat seal bar of the horizontal seal roll.

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