JP6708702B2 - Method for filling and packaging liquid to be packaged and filling and packaging machine using the same - Google Patents

Description

The present invention relates to a method for filling and packaging an object to be packaged (hereinafter, simply referred to as a "liquid object to be packaged"), which is composed of a liquid substance such as a liquid or a viscous substance or a jelly-like substance and may contain a granular substance. TECHNICAL FIELD The present invention relates to a filling and packaging machine used, and more particularly to a method for filling and packaging a liquid packaging object that can prevent the liquid packaging object from being bitten into the lateral seal portion, and a filling and packaging machine using the same.

2. Description of the Related Art In recent years, it has been widely practiced to automatically fill and package liquid food items such as food and drink, seasoning liquids, pharmaceuticals and cosmetics with a soft packaging film.

Such an automatic filling and packaging machine for a liquid package is, for example, as described in Patent Document 1, a packaging film having a laminated structure of a uniaxially or biaxially stretched base film layer and an unstretched sealant layer. Or, the packaging film with a single-layer structure in which the heat-sensitive adhesive layer is part-coated on the base film layer is folded back at the center so that the sealant layer or the heat-sensitive adhesive layer is on the inside, and the side edge portions of the folded film are overlapped. The packaging film is formed into a tubular shape by heating and pressurizing it with a pair of vertical seal rolls and sending it downward while welding each other to form a vertical seal portion extending in the longitudinal direction.

Next, the tubular packaging film is sequentially heated and pressed by a plurality of heat seal bars located at equal intervals in the circumferential direction around each of the pair of horizontal seal rolls of the horizontal seal device. To produce a packaging bag by sending it downward while welding it to each other and forming lateral seal portions extending in the width direction of the tubular packaging film at intervals in the longitudinal direction of the packaging film at intervals. Bag it. In addition, the packaging bag manufactured continuously cut|disconnects the intermediate part of a horizontal sealing location with a cutting mechanism, and carries out in the continuous packaging state in which a single package or multiple packages are continuous.

At this time, the liquid packaged object is continuously filled in the tubular packaging film, and the liquid packaged object is filled from the formation of one horizontal seal portion to the formation of the next horizontal seal portion. The pump for use is stopped and the liquid package is filled in each packaging bag intermittently.

Japanese Patent Laid-Open No. 04-114841

In such a conventional filling and packaging machine, when the horizontal seal portion is formed while continuously filling the liquid object to be packaged as described above, the heat sealing bar of the horizontal seal roll is used to form a tubular packaging film. By laterally sealing while extruding a certain liquid packaged object, it is possible to prevent the liquid packaged object from being caught in the horizontal seal portion. However, for example, when the liquid object to be packaged includes a granular material or the like like dressing, the granular material or the like cannot be pushed out by the heat seal bar and may be caught in the horizontal seal portion. However, if the granular material or the like is caught in the lateral seal portion in this manner, not only the appearance is impaired, but also a sealing failure such as foaming may occur and the liquid packaged object may leak.

Further, in the case of filling and packaging a liquid object to be packaged containing a granular material or the like, from the formation of one horizontal seal portion to the formation of the next horizontal seal portion on the tubular packaging film as described above. In between, by intermittently filling the liquid packaged object, it is possible to prevent the entrapment of particulate matter and the like in the horizontal seal portion, but in this method, compared with the case of continuously filling the liquid packaged object. If the liquid packaged object has a high viscosity, the liquid will not run out easily and may get caught in the horizontal seal portion.

In order to solve the above problems, the applicant first in the traveling direction of the packaging film, at a position before the horizontal seal roll, a pair of diaphragm plates for squeezing out the liquid packaged object in the packaging film, Provided so as to sandwich both sides of the tubular packaging film, intermittently squeeze the continuously filled liquid object to be packaged by the squeezing plate, a horizontal seal portion by the horizontal seal roll at the squeezed location. Proposed to form .

By this method, it was possible to suppress the bite of the liquid packaged object into the horizontal seal part, but against the tubular packaging film during traveling, pressing a pair of diaphragm plates from both sides at once Since the film is narrowed down, the surface of the packaging film may be damaged by friction with the diaphragm plate.

Further, when the filling amount of the liquid packaging target is large with respect to the packaging film width such as a small bag, the tubular packaging film is largely swollen by the filled liquid packaging target and is positioned on both side surfaces. Since a force acts in the direction to spread the squeezing plate, the squeezing plate cannot sufficiently squeeze the liquid packaged object, and the liquid packaged object is caught in the horizontal seal portion, or wrinkles occur. May occur.

Furthermore, when the liquid to be packaged contains a hard solid substance such as granular pepper, when the packaging film is sandwiched by a pair of diaphragm plates, the solid substance is present between the tip portions thereof, Since the solid matter is sandwiched between the pair of diaphragm plates and cannot be squeezed out, the packaging film may be damaged or a hole may be opened.

Further, the pair of diaphragm plates, when the gap between the tip end portions thereof is too narrow, the packaging film may be blocked by traveling and may be clogged, or wrinkles may occur in the packaging film, in the case of being too wide. Is not able to prevent the liquid packaged object from advancing in the packaging film, and the liquid packaged object may be caught in the horizontal seal portion. Was important and its adjustment work was very difficult.

Therefore, in the present invention, without damaging the packaging film, it is possible to continuously fill the liquid packaged object while preventing the inclusion of bubbles and particles contained in the liquid packaged object into the horizontal seal portion. It is an object of the present invention to provide a filling and packaging method that can be performed and a filling and packaging machine using the filling and packaging method.

In the research for realizing the above-mentioned object, the inventor has folded a packaging film, which is continuously fed out in a longitudinal direction, at a central portion so that an adhesive layer or a sealant layer faces each other, and a side edge portion thereof. In, a longitudinal sealing portion is formed continuously in the longitudinal direction of the packaging film into a tubular shape, and while continuously filling the liquid packaging target in the tubular packaging film, one or more pairs of By sandwiching in a direction orthogonal to the longitudinal direction of the packaging film by a horizontal sealing roll, by forming a horizontal sealing portion extending over the entire width of the packaging film, by a method of filling and packaging a liquid packaged object in the packaging film. There
In the running direction of the packaging film, at a position in front of the horizontal seal roll of the most front pair among the one or more pairs, both side surfaces of the tubular packaging film in motion, at least one is elastic. It is sandwiched by a pair of ironing plates made of material intermittently, and the elastic bending of the ironing plates causes the pair of ironing plates to move in a direction in which they are pressed against each other to make a seal, and in the tubular packaging film. While temporarily blocking the fall of the liquid packaged object, the liquid packaged object interposed between the pair of ironing plates is squeezed to the running direction front side as the packaging film travels, The present invention has been developed by discovering that it is effective to horizontally seal the squeezed out portion with the horizontal seal roll.

In the filling and packaging method of the present invention, further,
(1) The pair of ironing plates are arranged on different tables, and the ironing plates come close to the tubular packaging film as the table moves in the longitudinal direction. Or displacing to a separated position,
(2) The two tables are connected to each other at both sides by a pair of connecting plates, and a direction perpendicular to the longitudinal direction of the packaging film is provided along a notch formed in the connecting plate of the one table. By moving to a position where the pair of ironing plates at the same time approaches or separates from the tubular packaging film,
(3) At least one of the pair of ironing plates has a U-shaped end edge extending in the width direction of the packaging film with respect to the packaging film when viewed from the running direction front side of the packaging film. One of a protruding shape, a U-shaped depression with respect to the packaging film, a V-shaped protrusion with respect to the packaging film, a V-shaped depression with respect to the packaging film, or one of the packaging films As a shape that is inclined toward the side portion, so as to contact the packaging film sequentially along the shape of the leading edge,
Is a more preferable solution.

Further, the present invention, the packaging film which is continuously fed out in the longitudinal direction is folded back at the central portion so that the adhesive layer or the sealant layer faces each other, and the side edge portions thereof are continuous in the longitudinal direction of the packaging film. A vertical sealing means that is formed into a cylindrical shape by forming a vertical sealing portion,
While filling the liquid packaging object in the tubular packaging film, in the direction orthogonal to the longitudinal direction of the packaging film, extending over the entire width of the packaging film, the gap in the longitudinal direction of the packaging film. A horizontal sealing means consisting of one or a plurality of pairs of horizontal sealing rolls to form a package by applying a horizontal sealing in
In a filling and packaging machine equipped with
In the traveling direction of the packaging film, at a position in front of the horizontal seal roll of the frontmost pair of the one or more pairs, close to each other so as to sandwich both side surfaces of the tubular packaging film. And a pair of ironing plates that are displaceable in the separating direction,
At least one of the pair of ironing plates has elasticity capable of bending when the running tubular tubular packaging film is sandwiched from both side surfaces, and the tip end portion of the elastic ironing plate is bent. By operating the pair of ironing plates in a direction in which they are pressed against each other, the tubular packaging film is sealed to temporarily prevent the liquid packaged object from falling, and the pair of ironing plates are attached to each other. We propose a filling and packaging machine characterized in that a liquid packaging object interposed therebetween is squeezed out to the front side in the traveling direction as the packaging film travels .

In the filling and packaging machine described above, the following configuration is a more preferable solution. That is,
(1) The pair of ironing plates are arranged on different tables, and the ironing plates come close to the tubular packaging film as the table moves in the longitudinal direction. Or displacing to a separated position,
(2) The two tables are connected to each other at both sides by a pair of connecting plates, and a direction perpendicular to the longitudinal direction of the packaging film is provided along a notch formed in the connecting plate of the one table. By moving to a position where the pair of ironing plates at the same time approaches or separates from the tubular packaging film,
(3) At least one of the pair of ironing plates has a plurality of grooves extending in parallel to the traveling direction of the packaging film on the tip surface of the side facing the packaging film.
(4) At least one of the pair of ironing plates has a tip edge extending in the width direction of the packaging film in a U shape with respect to the packaging film when viewed from the front side in the traveling direction of the packaging film. One of a protruding shape, a U-shaped depression with respect to the packaging film, a V-shaped protrusion with respect to the packaging film, a V-shaped depression with respect to the packaging film, or one of the packaging films Being inclined toward the side of the
Is.

In the method for filling and packaging a liquid packaged object of the present invention and the filling and packaging machine using the same, the liquid packaged object is filled in a tubular packaging film (hereinafter, referred to as “cylindrical film”). While sealing and filling by performing horizontal sealing with one or more pairs of horizontal sealing rolls, in the running direction of the tubular film, in front of the most horizontal pair of horizontal sealing rolls of one or more pairs of horizontal sealing rolls. both sides of the tubular film at a position, at least one of crowded viewed sandwiched and ironing board one pair consisting of an elastic material, the ironing by the deflection due to the elasticity of the plate in the cylindrical film of the liquid material to be packaged Temporarily prevent progress in. Thus, the liquid packed material is shaped filled tubular film, as compared to the slave coming technology, it is possible to reduce damage due to friction on the tubular film, also liquid packed inside the tubular film It is possible to reliably squeeze out the object at least to the front side in the traveling direction of the packaging film, and effectively prevent the liquid packaged object from being caught in the lateral seal portion.

Incidentally, because in the present invention, at least one of the previous SL pair of ironing plates were made of an elastic material that can be flexed when sandwiching both sides of the tubular packaging film traveling, the a pair of squeezing plates, not only close to each other, since the flexed can be operated in a direction of pressing each other with respect to the tubular film, before wrote unnecessary clearance adjustment between the tip of Gokiban At the same time, it becomes easy to adjust the squeezing force (squeezing force) of the liquid packaged object .

Also, in the present invention, prior Symbol pair of ironing plates, on the side of the apical surface facing the tubular film, when provided with a plurality of grooves extending parallel to the running direction of the tubular film, and the Since the contact area between the dust plate and the tubular film is small, the frictional resistance is low, and the damage to the tubular film can be further reduced.

Furthermore, in the present invention, at least one of the pair of ironing plates has a shape in which a leading edge parallel to the width direction of the packaging film is projected in a U shape with respect to the packaging film ( U shape ) , the packaging. U-shaped recess for the film for packaging ( reverse U-shape ) , V-shaped projection for the packaging film ( V-shape ) , V-shaped recess for the packaging film ( reverse V-shape) ) Or a shape inclined toward one side of the packaging film , the pair of ironing plates are arranged so as to sequentially approach or contact the tubular film along the leading edge shape. Therefore, the tension of the tubular film does not suddenly change, the tubular film can be smoothly run, and wrinkles can be prevented from occurring.

It is a schematic diagram which shows the structure of the vertical type filling and packaging machine as one Example of the filling and packaging machine of this invention. It is a schematic diagram which expands and shows one Embodiment of the horizontal seal part formation part of a filling packaging machine, a diaphragm plate, and an ironing board. It is a side view (a) and a perspective view (b) explaining one embodiment of a squeezing mechanism by a diaphragm plate and an ironing board, and its drive mechanism. It is a schematic diagram which expands and shows other embodiment of the horizontal seal part formation part of a filling packaging machine, a diaphragm plate, and an ironing board. FIG. 7 is a perspective view showing a state in which a groove portion is provided at the tip end portions of the diaphragm plate and the ironing plate. It is a perspective view which shows the case where the front-end edge of a diaphragm board and an ironing board consists of (a) V shape, (b) inclination shape, and (c) U shape. It is a side view which shows the case where the front-end|tip of a diaphragm plate and an ironing board consists of (a) arc shape and (b) triangular shape.

An embodiment of the present invention will be described below based on an embodiment shown in the drawings.
FIG. 1 is a schematic view 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 type filling and packaging machine laminates, for example, a base film layer made of a biaxially stretched ethylene-vinyl alcohol copolymer resin and a sealant layer made of a non-stretched ethylene-vinyl acetate copolymer resin. While continuously running one long packaging film consisting of the laminated film in the longitudinal direction, it is folded back in the width direction so that the sealant layers face each other and the both side edges are overlapped with each other. While continuously making a large number of packaging bags from the packaging film, each packaging bag is automatically filled with liquid food items such as foods, seasonings, pharmaceuticals, cosmetics and the like. In addition, 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, a package supply portion 3, a first horizontal seal portion forming portion 4a, It is provided with a second horizontal seal portion forming portion 4b and a cutting portion 5 for cutting the packaging bag into single packages or plural packages. Hereinafter, a case where a liquid packaged object including a granular material or the like is used as the packaged object will be described.

In the film folding section 1 of FIG. 1, one long packaging film 6 that is continuously fed from the film roll R is continuously run from the upper side to the lower side, and the U-shaped and reverse While being guided by the 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 both sides thereof are located at the left end portion of the packaging film 6 in the figure. Overlap the edges.

In the vertical seal portion forming part 2, the side edges of the packaging film 6 which are folded back and overlapped are continuously heated and pressed in the longitudinal direction (longitudinal direction) of the packaging film 6 by a pair of vertical seal rolls 8. Thus, the vertical seal portion 13 is formed, thereby forming the tubular film 15 in which the packaging film 6 is tubular.

The vertical seal portion forming unit 2 includes a pair of vertical seal rolls 8 that are arranged in a direction orthogonal to the plane of the drawing and extend horizontally parallel to each other, and a pair of vertical seal rolls 8 (not shown). Both ends of the support shaft of the vertical seal roll 8 are respectively supported so as to urge the motor 9 which is driven to rotate in the opposite direction and at a constant speed, and the pair of vertical seal rolls 8 toward each other via the motor 9. 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 are provided. While pressing the overlapping side edge portions of the tubular film 15 between the annular flanges 8a by the pressing force of, the heating is performed by the heat transmitted from the heater to the annular flange 8a. While the sealant layers of the parts are welded to each other to form the vertical seal part 13, the cylindrical film 15 is caused to run downward by the rotation thereof.

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

In the first lateral seal portion forming portion 4a, the tubular film 15 is heated over its entire width by a pair of lateral seal rolls 12 at regular intervals and pressed while being welded to each other intermittently. The lateral seal portion 14 is formed. After that, in the second horizontal seal portion forming portion 4b, the horizontal seal portion 14 is re-pressed by the pair of horizontal seal rolls 12 in the same manner as the first horizontal seal portion forming portion 4a to secure the seal. As a result, a large number of packaging bags W are continuously made in a state of being connected in the longitudinal direction of the tubular film 15. Then, the substantially intermediate portion of the lateral sealing portion 14 of the continuously wrapped packaging bags W is cut by the cutting portion 5, whereby the individual packaging bags W are obtained.

The pair of lateral seal rolls 12 in the first and second lateral seal portion forming portions 4a and 4b are rotationally driven in opposite directions at a constant speed by a motor via a gear set to rotate on the outer peripheral surface. Has a plurality of (four in the figure) heat seal bars 12a located at equal intervals in the direction and extending in the axial direction. The heat seal bars 12a sandwich the tubular film 15 to form the lateral seal portion 14. Form or reinforce. Each horizontal seal roll 12 has a built-in heater for heating the heat seal bar 12a.

In the filling and packaging machine of this embodiment, as shown in FIG. 2, the horizontal seal portion formed by the pair of horizontal seal rolls 12 of the first horizontal seal portion forming portion 4a located closest to the front in the traveling direction of the tubular film 15. in front of the 14 formation position of at least one pair (in Figure 2 a pair) of the diaphragm plate 16a, and 16b, a pair of squeezing plates 17a, are provided and 17b, the present invention described below, the pair of squeezing of which This is an example in which only the plates 17a and 17b are provided.
A pair of squeezing plates 17a, 17b are arranged so as to sandwich both side surfaces of the tubular film 15, intermittently sandwiching both sides of the tubular film 15 inflated by the filling of the liquid-like to be packaged at a predetermined timing in function to temporarily block the drop in the tubular film 15 of liquid material to be packaged to be continuous filling.
Incidentally, this bookmarks Gokiban 17a, 17b also has a function to stabilize the filling amount of the liquid packed material shape and a liquid packed material features and packaging bag out ironing air contained in .

In the present invention, at least one of the pair of ironing plates 17 is provided with the tubular film 15 that is running. The feature is that it is made of an elastic material that can bend when sandwiched from both sides. There are signs, for example, the tensile elastic modulus is 5000 MPa or less, preferably 100 to 300 MPa. Resin material or metal material with elasticity equivalent to that (thin metal with elasticity or thin It can be composed of a plurality of stacked metal pieces).

In addition, at least one of the ironing plates 17a and 17b is provided with Teflon (registered trademark) or MC. It is made of resin materials such as nylon, polyacetal, and ultra-high molecular weight polyethylene. When using a material with low frictional resistance such as Freon (registered trademark), the slip property is improved. Therefore, damage to the tubular film 15 can be reduced.

This is because the pair of ironing plates 17a and 17b has elasticity such as Teflon (registered trademark). When it is made of a resin material, as shown in FIG. 4, the tips of the ironing plates 17a and 17b It becomes possible to bend the blades and to move them in the direction in which they are pressed against each other. Temporarily lower the liquid packaged object in the tubular film 15 in the sealed state with the plates 17a and 17b. It is possible to reliably prevent the liquid packaged object from being bitten into the lateral seal portion 14 because it can be prevented. Because it can be prevented. In FIG. 4, both the pair of ironing plates 17a and 17b are The case where the ironing plate 17a on one side is made of a hard metal is shown although it is made of a material having elasticity such as a resin material. Even if the other ironing plate 17b is made of a material having elasticity such as a resin material, Similar effects can be expected. The material of the ironing plate 17b and the combination thereof The plate thickness should be selected according to the viscosity of the liquid package and the amount and type of particulate matter contained. Preferably.

Further, when the elastic material is used as described above, in the closed state, a pair of ironing Since it is only necessary to adjust the mutual pressing force of the plates 17a and 17b, it is not necessary to adjust the proximity distance or the like. , Control is simple and replacement and maintenance of the ironing plates 17a, 17b are very easy become.

This Works Gokiban 17a, by the function of the 17b, the tubular film 15, the ironing plate 17a, the lower side of 17b, drops such as liquid and the granules been hampered, point that they do not intervene Are formed intermittently, and by forming the horizontal seal portion 14 by the horizontal seal roll 12 in the subsequent stage at this position, it is possible to reliably bite the liquid matter and the granular material into the horizontal seal portion 14. Can be blocked. Moreover, the tubular film 15, as described above, one also less for Ru narrowed down Tsu by the pair of squeezing plates 17a, 17b made of an elastic material, and Gokiban 17a, frictional resistance between 17b is reduced The damage to the tubular film 15 can be suppressed.

The pair bookmarks Gokiban 17a, 17b is displaceably constructed in the direction away direction, and mutually adjacent to each other across the tubular film 15 between as described above. A pair of to Gokiban 17a, the 17b, the pressing direction of the tubular film 15 is not limited particularly, be pressed into a substantially vertical or oblique direction to each other with respect to the running direction of the tubular film 15 it can.
In particular, pair bookmarks Gokiban 17a, a 17b, as shown in FIG. 2, when (in the drawing downward direction) running direction both side surfaces of the tubular film 15 is arranged so as to press obliquely against the is without running the tubular film 15 is inhibited, also, it is possible to close the by Gokiban 17a, 17b by the lateral sealing rolls 12 to position immediately before the formation position of the lateral seal part 14, installed The space can be reduced and the takt time can be improved.

This Works Gokiban 17a, mechanisms squeezing by 17b, and an example of the driving mechanism shown in FIG. In this example, it controls the servo motor 18 based on a command from the control means described later, Gokiban 17a and with the ball screw mechanism 19 as a feeding device, to determine accurately the timing and location of 17b of the displacement There is.
In addition to the servo motor 18, an air cylinder, a stepping motor, a solenoid, a magnet, an electromagnet, or the like can be used as a drive source, and a ball screw mechanism 19, a rack mechanism, a cam mechanism, or a crank mechanism can be used as a feeding device. Etc. can be used.

The base 20a and the other of the base 20b of the hand is integrally joined to each other via a member not shown, to the one of the base 20a, on the guide rails 25a, and Gokiban 17a is disposed The table 21a is movably provided via a slider 26a, and the table 21a is connected to a ball nut portion 19b screwed to a ball screw shaft 19a which is rotationally driven by the servomotor 18.
The other base 20b, on the guide rail 25b, and a table 21b in which Gokiban 17b are disposed, movably provided through the slider 26b.

Both sides of the two tables 21a and 21b are connected by a pair of connecting plates 22, and a notch 22a provided on a side of the connecting plate 22 on the base 20a side has a projection 23 provided on the table 21a. The table 21a and the table 21b are configured to move in a direction toward and away from each other by fitting and inserting the convex portion 23 and moving the convex portion 23 in the left-right direction in the drawing along the cutout portion 22a.

As a result, when the power from the servo motor 18 is transmitted to the ball screw shaft 19a and the ball nut 19b is pushed in the vertical direction in the figure, the table 21a connected to the ball nut 19b moves through the slider 26a to the guide rail. 25a is moved up and down, and along with it, it is moved leftward and rightward along the notch 22a via the projection 23.
On the other hand, since the table 21b is connected to the table 21a by the connecting plate 22 as described above, the table 21b moves up and down via the slider 26b and the guide rail 25b in accordance with the movement of the table 21a, and comes close to the table 21a. And will move in the direction of separation.

Therefore, according to this configuration, the servo motor 18 is driven according to the command from the control means, and accordingly, the table 21a and the table 21b are simultaneously displaced in the direction of approaching or separating from each other. it can be displaced on the table 21a and table 21b and Gokiban 17a plus disposed respectively, to close to or away positioned mutually and Gokiban 17b.

The timing of displacement of the ironing plates 17a and 17b, the opening/closing time, etc. are controlled by a control means such as a microcomputer, and, for example, the packaging form and the film configuration of the packaging film 6 input by the production condition setting means described later can be used. It is calculated by performing a predetermined calculation process based on the input values of the filling conditions such as the product type, the filling amount of the liquid packaged object, the feeding speed of the packaging film 6, and the like. The control means may also serve as the control means that functions as the main computer of the filling and packaging machine.

As the production condition setting means, for example, a touch panel integrally provided with an input means such as a ten-key pad and a monitor for displaying a set value by the input means is used, and the packaging film 6 of the filling and packaging machine is packaged. It is possible to set and change the filling conditions such as the form (length of the packaging bag W (seal pitch)), the type of film configuration and the like, and the film feeding speed.
The production condition setting means, further, to Gokiban 17a, has an operating monitor for displaying at over time graph displacement operation and the transverse sealing speed of 17b, visually could Gokiban 17a, 17b displacement it is possible to check the status, as appropriate, the timing and the closing time of the displacement, and Gokiban 17a, 17b close distance, etc. is adapted to be adjusted (input).
Further, the production condition setting means has a storage means such as a backup RAM or an EEPROM for storing the production conditions according to the type of the packaging film 6 and the filling conditions .

Also, to Gokiban 17a, 17b, as shown as an example mistake 17a to FIG. 5, at the tip, the surface of the tubular film 15 side, parallel to the running direction of the tubular film 15 It is preferable to form a plurality of grooves 27 by using the above. According to this, since the Gokiban 17a, the contact area between 17b and the tubular film 15 is reduced, it is possible to reduce the frictional resistance, it is possible to reduce damage to the tubular film 15. Also, Gokiban 17a, the tip of 17b, Teflon when coated by a material having a low frictional resistance, such as (R) also inhibit damage to the tubular film 15 to improve slipperiness be able to.

Further, a pair bookmarks Gokiban 17a, at least one of the 17b, inclined the leading edge extending in the width direction of tubular film 15 U-shaped, inverted U-shape, V-shape, an inverted V-shape or one side shape It is preferable that When the tip edge of Gokiban 17a to the embodiment in FIG 6 is formed of V-shaped (a), whereas when tilted to the side (b), shows the case made of U-shaped (c), either Also in this case, since the tubular film 15 is gradually sandwiched and squeezed from both side surfaces from the protruding tip portion, the tubular film 15 can travel smoothly without a sudden change in tension. We particularly, was Gokiban 17a, 17b of the leading edge, it is inclined downward toward the vertical seal part 13 side of the tubular film 15, and gradually narrow down from the vertical seal part 13 side toward the folded-back side In such a case, wrinkles do not occur on the tubular film 15, especially on the folded side, and the liquid packaged object can be completely squeezed out from the position of the horizontal seal portion 14.

Also, will Gokiban 17a, 17b of the tip portion, the other square, as shown in FIGS. 2 and 4, as shown in the side view of FIG. 7, toward the arc (a) and the tubular film 15 It is preferable to select a shape according to various conditions such as a tapered triangular shape (b). For example, if the tubular film 15 is made of a thin film of soft, to the tip edge ing from arc by using Gokiban 17a, 17 b, it is possible to reduce damage to the tubular film 15 and and when the viscosity of the liquid packed material is high, when the amount of particulates contained in the liquid packed material in is large, the use of Gokiban 17a, 17 b to ing from angular or triangular Thereby, the tubular film 15 can be firmly held from the front and back, and the liquid packaged object can be reliably squeezed out.

DESCRIPTION OF SYMBOLS 1 Film folding|returning part 2 Vertical sealing part formation part 3 Package supply part 4a 1st horizontal sealing part formation part 4b 2nd horizontal sealing part formation 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 films 16a, 16b Throttle plate 17a, 17b Ironing plate 18 Servo motor 19 Ball screw mechanism 19a Ball screw 19b Ball nuts 20a, 20b Bases 21a, 21b Table 22 Connecting plate 22a Notch 23 Convex portions 25a, 25b Guide rails 26a, 26b Slider 27 Groove R Film roll W Packaging bag M Liquid packaged object

Claims (9)

The packaging film, which is continuously fed out in the longitudinal direction, is folded back at the central part so that the adhesive layer or the sealant layer faces each other, and a vertical seal portion is continuously provided in the longitudinal direction of the packaging film on the side edge portion thereof. It is formed into a tubular shape and is sandwiched in a direction orthogonal to the longitudinal direction of the packaging film by one or a plurality of pairs of horizontal sealing rolls while continuously filling a liquid packaging object in the tubular packaging film. The method for filling and packaging a liquid packaged object in a packaging film by forming a lateral seal portion extending over the entire width of the packaging film,
In the running direction of the packaging film, at a position in front of the horizontal seal roll of the most front pair among the one or more pairs, both side surfaces of the tubular packaging film in motion, at least one is elastic. It is sandwiched by a pair of ironing plates made of material intermittently, and the elastic bending of the ironing plates causes the pair of ironing plates to move in a direction in which they are pressed against each other to make a seal, and in the tubular packaging film. While temporarily blocking the fall of the liquid packaged object, the liquid packaged object interposed between the pair of ironing plates is squeezed to the running direction front side as the packaging film travels, A method for filling and packaging a liquid to-be-packaged product, which is characterized in that the squeezed out portion is horizontally sealed by the horizontal sealing roll. The pair of ironing plates are arranged on different tables, respectively, and the ironing plates move close to or away from the tubular packaging film as the table moves in the longitudinal direction of the packaging film. The method for filling and packaging a liquid packaged object according to claim 1, wherein the liquid packaging object is displaced to a position. Both sides of the two tables are connected to each other by a pair of connecting plates, and one of the tables is moved in a direction orthogonal to the longitudinal direction of the packaging film along a notch provided in the connecting plate. Thereby, the pair of ironing plates are simultaneously displaced to positions close to or apart from the tubular packaging film, and the liquid packaging object filling and packaging method according to claim 2. At least one of the pair of ironing plates has a shape in which a tip edge extending in the width direction of the packaging film projects in a U shape with respect to the packaging film when viewed from the front side in the traveling direction of the packaging film. , A U-shaped recess with respect to the packaging film, a V-shaped protrusion with respect to the packaging film, a V-shaped recess with respect to the packaging film, or one side of the packaging film The liquid packaging according to any one of claims 1 to 3, wherein the packaging film has a shape inclining toward the packaging film so that the packaging film is brought into contact with the packaging film in sequence along the leading edge shape. Filling and packaging method of goods. The packaging film, which is continuously fed out in the longitudinal direction, is folded back at the central part so that the adhesive layer or the sealant layer faces each other, and a vertical seal portion is continuously provided in the longitudinal direction of the packaging film on the side edge portion thereof. A vertical sealing means formed into a tubular shape,
While filling the liquid packaging object in the tubular packaging film, in the direction orthogonal to the longitudinal direction of the packaging film, extending over the entire width of the packaging film, the gap in the longitudinal direction of the packaging film. A horizontal sealing means consisting of one or a plurality of pairs of horizontal sealing rolls to form a package by applying a horizontal sealing in
In a filling and packaging machine equipped with
In the traveling direction of the packaging film, at a position in front of the horizontal seal roll of the frontmost pair of the one or more pairs, close to each other so as to sandwich both side surfaces of the tubular packaging film. And a pair of ironing plates that are displaceable in the separating direction,
At least one of the pair of ironing plates has elasticity capable of bending when the running tubular tubular packaging film is sandwiched from both side surfaces, and the tip end portion of the elastic ironing plate is bent. By operating the pair of ironing plates in a direction in which they are pressed against each other, the tubular packaging film is sealed to temporarily prevent the liquid packaged object from falling, and the pair of ironing plates are attached to each other. A filling and packaging machine, which squeezes out a liquid material to be packaged in between to the front side in the traveling direction as the packaging film travels . The pair of ironing plates are arranged on different tables, respectively, and the ironing plates move close to or away from the tubular packaging film as the table moves in the longitudinal direction of the packaging film. The filling and packaging machine according to claim 5, wherein the filling and packaging machine moves to a position. Both sides of the two tables are connected to each other by a pair of connecting plates, and one of the tables is moved in a direction orthogonal to the longitudinal direction of the packaging film along a notch provided in the connecting plate. The filling and packaging machine according to claim 6, wherein the pair of ironing plates are simultaneously displaced to positions close to or away from the tubular packaging film. Wherein at least one of the pair of squeezing plates, the tip surface of the side facing to the packaging film, any of the claims 5-7, characterized in that it has an extended building plurality of grooves in the running direction of the該包wearing film The filling and packaging machine according to item 1. At least one of the pair of ironing plates has a shape in which a tip edge extending in the width direction of the packaging film projects in a U shape with respect to the packaging film when viewed from the front side in the traveling direction of the packaging film. , A U-shaped recess with respect to the packaging film, a V-shaped protrusion with respect to the packaging film, a V-shaped recess with respect to the packaging film, or one side of the packaging film The filling and packaging machine according to any one of claims 5 to 8, wherein the filling and packaging machine has a shape that is inclined toward.

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