JP2005059936A - Vertical sealing mechanism in vertical multi-row four side sealing automatic filling-packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical multi-row four side sealing automatic filling-packaging machine which can manufacture a large number of packages of which the four sides are sealed at once. <P>SOLUTION: This vertical multi-row four side sealing automatic filling-packaging machine is an automatic packaging machine 1, and for which forming mechanisms 15 are provided in parallel in an approximately horizontal direction into multiple rows, and which is equipped with a plurality of former pipes 151 which introduce a filling material into a packaging bag under a state being pinched with two sheets of packaging films 421 and 422. This vertical sealing mechanisms 16 are provided in parallel between a plurality of the former pipes 151, and are equipped with a plurality of pairs of vertical heat-sealers 161 and 162 which are confronted with each other across two sheets of the packaging films 421 and 422. Then, both of a plurality of pairs of the vertical heat-sealers 161 and 162 vertically seal two sheets of the packaging films 421 and 422 by pinching them by operating in the opposite directions. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vertical multi-row four-side seal automatic filling and packaging machine that forms a plurality of packages sealed by a four-side seal at a time.

  Conventionally, as a four-side seal automatic filling and packaging machine for producing a four-side sealed package, a roll type automatic filling and packaging machine has been mainly used (see Patent Document 1). In this roll type automatic filling and packaging machine, the number of rows is limited, and therefore the number of packages that can be manufactured at one time is limited. Moreover, when changing the width or length of the packaging bag of the package, complicated parts replacement such as roll replacement has occurred. For this reason, a specification change of a packaging bag can be performed without replacing parts, and a four-side seal automatic filling and packaging machine capable of quickly responding to the specification change has been desired.

  On the other hand, there is a stick type vertical multi-row automatic filling and packaging machine as an automatic filling and packaging machine that can flexibly cope with a change in specification of a packaging bag without replacing parts. Patent Document 2 discloses an example of the vertical multi-row automatic filling and packaging machine. Since the stick type vertical multi-row automatic filling and packaging machine is of a multi-row type, a large number of packages can be manufactured at a time. Moreover, in this vertical multi-row automatic filling and packaging machine, changing the bag width of the package can be dealt with by changing the position of the vertical seal, slitter, etc. Can only respond by.

Such a stick-type vertical multi-row automatic filling and packaging machine forms a substantially cylindrical shape by wrapping a packaging film (wrapping material) around a cylindrical former pipe, and the packaging film formed in this substantially cylindrical shape Vertical seals are made by overlapping both ends. Therefore, the shape of the packaging bag is substantially cylindrical, and the package is sealed with vertical and horizontal seals. In other words, the conventional stick-type vertical multi-row automatic packaging machine is used for manufacturing a stick-shaped or pillow-shaped package.
JP 2003-020002 A JP 2001-199405 A

As described above, the conventional automatic filling and packaging machine has a problem in that a large number of packages sealed in four directions cannot be manufactured at a time because the number of rows is limited when a roll type is used. .
The present invention has been made to solve such problems, and provides a vertical multi-row four-sided automatic filling and packaging machine capable of producing a large number of four-side sealed packages at one time. Objective.

A vertical multi-row four-side seal automatic filling and packaging machine according to the present invention includes a forming mechanism for superimposing two packaging films sent substantially vertically downward into a packaging bag shape, and each of the two packaging films. Filling material is supplied and filled between the two sealed sealing films and the vertical sealing mechanism and the horizontal sealing mechanism that seals the four sides of the packaging bag synchronously while pulling out each pack. A vertical multi-row four-way seal automatic having a filling mechanism for cutting, and a cutter mechanism for cutting the plurality of packaging bags filled with the filling material at the position of the transverse seal and packaging each package in four-side sealed manner A filling and packaging machine, wherein the forming mechanisms are arranged in multiple rows in a substantially horizontal direction and are supplied by the filling mechanism in a state of being sandwiched between the two packaging films. A plurality of former pipes for introducing the filled material into the packaging bag, wherein the vertical sealing mechanism is arranged between the plurality of former pipes and faces each other with the two packaging films interposed therebetween. A pair of first and second longitudinal heat sealers, wherein the plurality of pairs of first and second longitudinal heat sealers both operate in the opposite direction to sandwich the two packaging films and seal vertically It is.
In such a vertical multi-row four-side seal automatic filling and packaging machine, when the plurality of pairs of first and second vertical heat sealers are vertically sealed between a plurality of former pipes, Approaching the film, longitudinal sealing is performed by the multiple pairs of first and second longitudinal heat sealers. At the same time, when the packaging film is transferred, the plurality of pairs of first and second vertical heat sealers do not obstruct the transfer of the two packaging films or heat the packaging film. Keep away from. Therefore, such a configuration makes it possible to manufacture a package that is four-side sealed.
Furthermore, since the vertical multi-row four-way seal automatic packaging machine according to the present invention is a vertical multi-row automatic packaging machine, the number of manufacturing rows of the package is multi-row. Therefore, with such a configuration, a large number of packages sealed in four directions can be manufactured at a time.

  Further, the first and second vertical heat sealers are attached so that their positions can be adjusted in the direction in which the former pipes are arranged side by side. Thereby, since the space | interval of the said 1st and 2nd vertical heat sealer can be changed easily, the bag width of the said package can be changed easily.

  Furthermore, the first and second vertical heat sealers vertically seal the two packaging films on a plane including a substantially center line in a side view of the plurality of former pipes. Thereby, since the vertical sealing can be performed near the middle of the two packaging films, a high-quality packaging body having a substantially symmetrical and favorable shape on the front and back surfaces can be formed.

  Further, in the stop state of the vertical multi-row four-side seal automatic filling and packaging machine, one of the first or second vertical heat sealers is stopped away from the transfer path of the two packaging films compared to the other one. To do. Thereby, when installing a packaging film in the stop state of the vertical multi-row four-way seal automatic filling and packaging machine, the first and second vertical heat sealers that serve as heat sources remain heated, but the first or second Since the distance between the vertical heat sealer 2 and the packaging film can be increased, the packaging film can be prevented from being heated by the first or second vertical heat sealer.

  In addition, the former pipe is provided with a gap holding member that holds the gap between the two packaging films that have passed through the lower end of the former pipe at least as wide as the thickness of the lower end of the former pipe. Thereby, even when the width of the bag portion is wide, the bag portion can be reliably filled with the packaging material, and a high-quality packaging body having a wide bag portion can be reliably formed. .

  Moreover, either the said 1st or 2nd vertical heat sealer is connected integrally. As a result, not the individual vertical heat sealers but the entire vertically connected heat sealers can be adjusted, so the position setting of the vertical heat sealers can be adjusted easily.

  According to the present invention, it is possible to provide a vertical multi-row four-side seal automatic filling and packaging machine capable of producing a large number of four-side sealed packages at one time.

The vertical multi-row four-sided seal automatic filling and packaging machine according to the present invention is for manufacturing a four-side sealed package by laminating two packaging films sent in a substantially vertical direction.
The best mode for carrying out the present invention will be described below with reference to the drawings.

Embodiment 1 of the Invention
First, the overall configuration of a vertical multi-row four-way seal automatic filling and packaging machine according to the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 is a front view showing a vertical multi-row four-side seal automatic filling and packaging machine according to the present invention. In FIG. 1, a vertical multi-row four-way seal automatic filling and packaging machine according to the present invention is indicated generally by the reference numeral 1. Hereinafter, in FIG. 1, the top, bottom, left, and right sides observed from the front side of the paper surface, the back side of the paper surface from the rear side, and the front side are respectively referred to as the upper side, the lower side, the left side, and the right side. Hereinafter, the vertical multi-row four-way seal automatic filling and packaging machine 1 is abbreviated as the automatic packaging machine 1.

  In FIG. 1, 11 is a main body frame, 12 is a hopper, 13 is a quantitative supply mechanism, 14 is a shooter, 15 is a forming mechanism, 16 is a vertical sealing mechanism, 17 is a slit mechanism, 18 is a horizontal sealing mechanism, 19 is a cutter mechanism, Reference numeral 20 denotes a discharge tray, and 21 denotes an operation panel. Moreover, in FIG. 1, 40 is an original fabric roll, 41 is a sheet film (packaging material), 421,422 is a packaging film.

  The raw fabric roll 40 is a roll obtained by winding a sheet film 41 concentrically. The sheet film 41 is a wide sheet film drawn from the original fabric roll 40. The sheet film 41 is made of a transparent or translucent material, for example, a base film such as PET or a heat seal film such as polyethylene having a melting point lower than that of the base film. The sheet film 41 may have a three-layer structure of a base film, an intermediate film, and a heat seal film. Each of the packaging films 421 and 422 is a packaging film on the front side and a packaging film on the rear side of the sheet film 41 that is bisected in the longitudinal direction.

  The main body frame 11 is a support that supports various drive mechanisms and the like of the automatic packaging machine 1. The hopper 12 is a storage container that stores a filling material. The fixed amount supply mechanism 13 is a mechanism which is provided below the hopper 12 and distributes and supplies the filling material supplied from the hopper 12 into a plurality of parts. The shooter 14 is provided below the quantitative supply mechanism 13 and introduces the filling material distributed by the quantitative supply mechanism 13 into the forming mechanism 15.

  The forming mechanism 15 is provided on the lower side of the shooter 14, and is a mechanism for forming two wrapping films 421 and 422 to form a wrapping bag. As will be described later, the forming mechanism 15 includes a former pipe 151 and a pair of former rollers 152 (the other is not shown in FIG. 1). The former pipe 151 is provided below each shooter 14 and guides the filling material introduced from each shooter 14 into the packaging bag. The pair of former rollers is a roller that overlaps two packaging films 421 and 422.

The vertical sealing mechanism 16 is a mechanism that is provided below the forming mechanism 15 and vertically seals the two packaging films 421 and 422 as will be described in detail later. The vertical seal mechanism 16 has a pair of vertical heat sealers 161 (the other is not shown in FIG. 1) on the front and rear sides for pairing the two packaging films 421 and 422.
The slit mechanism 17 is a mechanism that is provided below the vertical seal mechanism 16 and slits the vertical seal portions of the two packaging films 421 and 422. The slit mechanism 17 includes a plurality of slitters 171 arranged in multiple rows between the former pipes 151, and the slitter 171 cuts the two packaging films 421 and 422 into a plurality of strips in the longitudinal direction.

  The lateral sealing mechanism 18 is a mechanism that is provided below the slit mechanism 17 and laterally seals the packaging films 421 and 422 that have been slit and cut into a plurality of strips. The cutter mechanism 19 cuts the packaging films 421 and 422 filled with a filling material between two horizontal seals at the position of the horizontal seal, and wraps them in a four-side sealed package (hereinafter abbreviated as a four-side seal package). It is a mechanism to do. The discharge tray 20 is a member that discharges the packaged four-way seal package from the automatic packaging machine 1 to the outside. The operation panel 21 is input / output means for operating a device (not shown) for operating each drive mechanism installed on the rear side of the automatic packaging machine 1.

Further, in FIG. 1, 310 is a paper feed roller, 311 is a pinch roller, 32 is a step roller, 33 is a paper feed control mechanism, 340 is a control roller, 341 is a pinch roller, 35 is a slitter, 36 is a Σ frame, 371 Is a guide roller.
The paper feed roller 310 is a roller that is rotated by a motor or the like (not shown) to transport the sheet film 41. The pinch roller 311 is a roller that is in strong contact with the roll surface of the paper feed roller 310 in an expanded state and sandwiches the sheet film 41 together with the paper feed roller 310. The step roller 32 is a roller that is movable according to the tension of the sheet film 41.

  The paper feed control mechanism 33 is a mechanism that adjusts the tension of the sheet film 41. The paper feed control mechanism 33 has a support member 332 that can rotate around a fulcrum 331, and a step roller 32 is provided at the tip of the support member 332. The paper feed control mechanism 33 detects the inclination of the support member 332 and controls the rotation of the paper feed roller 310 according to the detection result. In addition, the paper feed control mechanism 33 always applies a force in the direction opposite to the paper feed direction (downward in the drawing) to the step roller 32 and applies tension to the sheet film 41. The force applied to the step roller 32 is weaker than the force with which the horizontal sealing mechanism 18 pulls out the packaging films 421 and 422 (sheet film 41).

  The control roller 340 is a roller that can be rotated forward and backward. The control roller 340 functions as a roller for controlling the tension of the packaging films 421 and 422, and although not shown in FIG. 1, a feedback mechanism for controlling looseness of the packaging films 421 and 422 is provided. The pinch roller 341 is a roller that is in strong contact with the roll surface of the control roller 340 in an expanded state and sandwiches the sheet film 41. The slitter 35 is a mechanism that slits a wide sheet film 41 in the longitudinal direction to form the sheet film 41 into two packaging films 421 and 422 that serve as packaging bags.

  The Σ frame 36 is a mechanism that changes the transfer direction of the two packaging films 421 and 422 sent from the right side in the drawing from the substantially horizontal direction to the substantially vertical direction and folds the two packaging films 421 and 422. This Σ frame body 36 is a frame body composed only of a so-called Σ plate frame, and is configured by aligning the apexes of each frame body so that the oblique sides thereof are orthogonal to each other. . Two guide rollers are attached to both the front and rear frames of the Σ frame 36 in the left-right direction in the figure. The front frame guide roller 361 guides the packaging film 421 and the rear frame guide roller (not shown) guides the packaging film 422 substantially vertically downward.

  The guide roller 371 is a roller that is provided below the front frame guide roller 361 and guides the packaging film 421 guided from the frame guide roller 361 to the forming mechanism 15. The guide roller 371 is opposed to a rear guide roller (not shown), which will be described later, with the former pipe 151 interposed therebetween.

Then, operation | movement of the automatic packaging machine 1 concerning this invention is demonstrated using FIG.1 and FIG.2. The automatic packaging machine 1 according to the present invention has a structure in which a wide sheet film 41 is sequentially drawn downward from the fabric roll 40 in accordance with the vertical movement of the lateral seal mechanism 18.
FIG. 2 is a side view of the automatic packaging machine 1 observed from the left side in FIG. In FIG. 2, 153 is a rear former roller, 162 is a rear vertical heat sealer, 181 and 182 are horizontal heat sealers, 362 is a rear frame guide roller, and 372 is a rear guide roller.

  When the paper feed roller 310 rotates, the paper feed roller 310 and the pinch roller 311 come into strong contact with each other, so that the wide sheet film 41 is drawn from the wide sheet film raw roll 40. At this time, the paper feed control mechanism 33 monitors the tension of the sheet film 41 via the step roller 32 and controls the rotation of the paper feed roller 310 so that the tension of the sheet film 41 is always maintained at a constant amount. The drawn sheet film 41 is sent to the slitter 35 in a state where the sheet film 41 is pressed by the control roller 340 and the pinch roller 341. The slitter 35 slits the fed sheet film 41 and bisects it in the longitudinal direction of the sheet film 41. These two packaging films 421 and 422 are transferred to the Σ frame 36.

  As shown in FIG. 2, each of the front side packaging film 421 and the rear side packaging film 422 is folded back inside the automatic packaging machine 1 by the frame guide rollers 361 and 362 on both sides of the Σ frame 36. Guide rollers 151 and 372 on both sides are guided to a plurality of former pipes 151 and former rollers 152 and 153 provided in the forming mechanism 15. The two guided packaging films 421 and 422 are transported in a substantially vertical direction in the forming mechanism 15 while being sandwiched between the pair of former rollers 152 and 153. At this time, the two packaging films 421 and 422 sandwich the former pipe 151 therebetween, and are sent to the vertical sealing mechanism 16 in this state.

  In the vertical sealing mechanism 16, the two packaging films 421 and 422 are pressed by a plurality of pairs of vertical heat sealers 161 and 162 and are vertically sealed between the plurality of former pipes 151. The two vertically sealed packaging films 421 and 422 are cut into a plurality of strips along the vertical seal by each slitter 171 of the slit mechanism 17, and after this cutting, by the horizontal heat sealers 181 and 182 of the horizontal seal mechanism 18. It is pinched and laterally sealed. At the same time, the filling material is supplied from the hopper 12 through each shooter 14 and the former pipe 151 to the packaging bag formed between the packaging films 421 and 422. The horizontal sealing mechanism 18 moves downward by one pack while holding the packaging films 421 and 422 by the horizontal heat sealers 181 and 182. At this time, the two packaging films 421 and 422 are drawn into the forming mechanism 15, the vertical sealing mechanism 16, and the horizontal sealing mechanism 18 by one pack, and the sheet film 41 for one pack is pulled out from the original fabric roll 40. It is.

  After the sheet film 41 has been pulled out, the lateral sealing mechanism 18 moves back upward, and then laterally seals the packaging films 421 and 422 by the lateral heat sealers 181 and 182. By this horizontal seal, the mouth of the packaging bag filled with the filling material is sealed. This completes one step of sealing the sealing films 421 and 422 on which the filling material is packaged in four directions. Thereafter, the cutter mechanism 19 provided at the lower portion of the horizontal seal mechanism 18 cuts the center of the horizontal seal when the horizontal heat sealers 181 and 182 return, and the packaged four-side seal package is discharged from the discharge tray 20. .

  Next, the vertical sealing mechanism 16 of the automatic packaging machine 1 according to the present invention will be described in detail. In the vertical sealing mechanism 16 of the automatic packaging machine 1 according to the present invention, the vertical heat sealers 161 and 162 provided opposite to the front and rear sides operate simultaneously in the opposite direction, and the two packaging films 421 and 422 are moved from both the front and rear sides. It is pressed and pasted together.

First, the vertical heat sealers 161 and 162 provided on the front and rear sides of the vertical sealing mechanism 16 will be described in detail with reference to FIGS. 3 and 4. In this description, the configuration of the forming mechanism 15 will also be described in detail.
The top view of FIG. 3 shows an example of the configuration of the front vertical heat sealer 161 and its periphery. This plan view is a view observed from the front side. As shown in FIG. 3, the former pipes 151 of the forming mechanism 15 are arranged in multiple rows in a substantially horizontal direction. The former pipe 151 has a wide shape such that a cylinder is crushed, and is arranged so that the wide direction is a parallel arrangement direction. That is, the shape of the former pipe 151 is such that the width viewed from the front side is larger than the width viewed from the left (right) side.

A spacing member 511 is attached to the front side of the lower end of the former pipe 151. The spacing member 511 is a thin member having a substantially rectangular planar shape, and has a shape slightly warped along the longitudinal direction. The warped shape holding member 511 is attached to the lower end of the former pipe 151 so as to be separated from the former pipe 151 in a substantially vertical downward direction. That is, in FIG. 3, the spacing member 511 is warped from the rear side toward the front side as it goes downward. The spacing member 511 spreads the packaging film 421 from the inside to the outside surrounded by the two packaging films 421 and 422 below the lower end of the former pipe 151.
A plurality of former rollers 152 are arranged in a substantially horizontal direction between the former pipes 151 arranged in parallel in multiple rows. These former rollers 152 are rotatably supported by a rotating shaft 521 that is held substantially horizontally in the left-right direction, and the roll surface of the former roller 152 is substantially parallel to the axial direction of the rotating shaft 521.

  As shown in FIG. 3, a plurality of vertical heat sealers 161 are arranged in parallel between a plurality of former pipes 151 arranged in multiple rows on the front side of the vertical sealing mechanism 16. The vertical heat sealer 161 has a substantially rectangular parallelepiped shape. Inside the front vertical heat sealer 161, heating means such as a heater (not shown) is incorporated. The vertical heat sealer 161 is heated by the heating by the heating means, and comes into contact with the packaging film 421 to heat the contact surface. Moreover, this heating means may be provided in the vicinity of the contact surface with the packaging film 421, or may be provided in the interior away from this contact surface.

  These vertical heat sealers 161 are attached to the attachment member 531 so that the position thereof can be adjusted with respect to the juxtaposed direction. More specifically, the attachment member 531 has a long shape, and a long attachment hole 541 is formed in the longitudinal direction thereof. Each vertical heat sealer 161 is detachably attached to the attachment hole 541 by a fixing means such as a screw 551. By loosening the screw 551, the position of the longitudinal heat sealer 161 can be adjusted with respect to the longitudinal direction of the attachment member 531. . Since the attachment member 531 is disposed substantially horizontally, the position of the vertical heat sealer 161 can be adjusted in a substantially horizontal direction.

  A cylinder mechanism (not shown) for operating the front vertical heat sealer 161 is connected to the left and right of the mounting member 531. In this cylinder mechanism (not shown), operating arms 561 and 562 for transmitting cylinder operation are projected from the rear side toward the front side. Heads 571 and 572 are connected to these operating arms 561 and 562, and an attachment member 531 is fixed to these heads 571 and 572 and is movable in a direction substantially perpendicular to the paper surface in FIG.

The plan view of FIG. 4 shows an example of the configuration of the rear vertical heat sealer 162 and its surroundings. This plan view is a view observed from the rear side.
As shown in FIG. 4, the rear former roller 153 is arranged in parallel with the former roller 152 between the former pipes 151. Like the former roller 152, these former rollers 153 are also pivotally supported by a rotating shaft 522 held substantially horizontally. The former rollers 152 and 153 are in contact with each other between the two packaging films 421 and 422 in the vicinity of the center in the front-rear direction of the former pipe 151 (see FIG. 5).

  A spacing member 512 similar to the spacing member 511 is attached to the rear side of the lower end of the former pipe 151. The spacing member 512 also spreads the packaging film 422 from the inside surrounded by the two packaging films 421 and 422 toward the outside below the lower end of the former pipe 151. Since the two packaging films 421 and 422 are spread by both of the spacing members 511 and 512, it is possible to prevent the spacing between the two packaging films 421 and 422 from becoming smaller than the lower end of the former pipe 151. Can do.

As shown in FIG. 4, a vertical heat sealer 162 is arranged in parallel with the vertical heat sealer 161 on the rear side of the vertical seal mechanism 16. This vertical heat sealer 162 is a heat sealer in which a heating means (not shown) is built inside, similar to the vertical heat sealer 161. In the case of the rear vertical heat sealer 162, the heating means can be easily replaced by providing the heating means in the interior away from the contact surface with the packaging film 422.
Similar to the vertical heat sealer 161, the vertical heat sealer 162 is detachably attached to the attachment hole 542 of the attachment member 532 by a fixing means such as a screw 552. Thereby, the position of the vertical heat sealer 162 can be adjusted in the longitudinal direction of the mounting member 532, that is, in the substantially horizontal direction.

  Two left and right cylinder mechanisms (not shown) for operating the rear vertical heat sealer 162 are connected to the left and right ends of the mounting member 532. Actuating arms 581 and 582 for transmitting the cylinder operation are provided to project from the rear side to the front side in the two left and right cylinder mechanisms (not shown). The mounting member 532 is fixed to these operating arms 581 and 582 and is movable in a direction substantially perpendicular to the paper surface in FIG.

Next, the cylinder mechanism that operates the vertical heat sealers 161 and 162 of the vertical sealing mechanism 16 will be described in detail with reference to FIGS. 5 and 6.
The cross-sectional view of FIG. 5 shows a cylinder mechanism for operating the front vertical heat sealer 161. One cylinder mechanism for operating the front vertical heat sealer 161 is incorporated at the height of the mounting member 531 near the center of the main body of the automatic packaging machine 1 when viewed from the front. Two sets of operating arms 561 and heads 571 and operating arms 562 and heads 572 are connected to the one cylinder mechanism, and these two sets are configured to operate simultaneously.
The cylinder mechanism for operating the front vertical heat sealer 161 has two cylinders. As will be described later, these two cylinders operate when performing vertical sealing, and the automatic packaging machine 1 stops. Also works when you do.

In FIG. 5, the whole cylinder mechanism is indicated by reference numeral 60, 61 is a central first cylinder, and 62 is a central second cylinder.
The central first cylinder 61 of the central cylinder mechanism 60 is slidably attached to a guide plate (not shown) provided on the main body frame 11 in the front-rear direction (left-right direction in the figure). The central second cylinder 62 is fixed to a fixing plate 63 provided on the main body frame 11. The cylinder head 621 of the central second cylinder 62 is in contact with the bottom surface 610 on the rear side of the central first cylinder 61 and supports the central first cylinder 61 from the rear side.
The operating arm 561 is connected to the cylinder head 611 of the central first cylinder 61 via the connecting portion 64. At the same time, the distal end of the operating arm 561 is connected to the head 571. The head 571 is fixed to an attachment member 531 provided with a vertical heat sealer 161, and the cylinder operation of the cylinders 61 and 62 is transmitted to the attachment member 531.

In the cross-sectional view of FIG. 6, the left and right cylinder mechanisms for operating the rear vertical heat sealer 162 are shown. Here, the left cylinder mechanism will be described, but the right cylinder mechanism is configured similarly. Two cylinder mechanisms for operating the rear vertical heat sealer 162 are built in the main body of the automatic packaging machine 1 near the left and right ends of the mounting member 532 when viewed from the front. Actuating arms 581 and 582 are connected to each of these two cylinder mechanisms. The cylinder mechanism for operating the rear vertical heat sealer 162 is composed of one cylinder. Here, the left cylinder mechanism will be described, but the right cylinder mechanism is configured similarly.
In FIG. 6, reference numeral 70 indicates the entire left cylinder mechanism, and 71 is a left cylinder. The left cylinder 71 of the left cylinder mechanism 70 is attached to a guide plate 72 provided on the main body frame 11. The cylinder head 711 of the left cylinder 71 is connected to the operating arm 581 via the connecting portion 73. The operating arm 581 is fixed to the mounting member 532, and the cylinder operation of the left cylinder 71 is transmitted to the mounting member 532.

  As shown in FIGS. 5 and 6, the guide rollers 371 and 372 are opposed to each other with the former pipe 151 interposed therebetween. The former pipes 152 and 153 of the forming mechanism 15 are opposed to each other with the packaging films 412 and 422 interposed therebetween. The vertical heat sealers 161 and 162 of the vertical sealing mechanism 16 are also opposed to each other with the packaging films 421 and 422 interposed therebetween. That is, these opposing members are arranged substantially line symmetrically with respect to the former pipe 151 or the two packaging films 421 and 422.

By the vertical sealing mechanism 16 configured as described above, the two packaging films 421 and 422 are vertically sealed as follows. Here, the vertical sealing operation will be described with reference to FIGS. 5 and 6 as appropriate.
The original roll 40 is installed in a state where the automatic packaging machine 1 is stopped, and the two packaging films 421 and 422 obtained by dividing the original roll 40 into two equal parts are the front and rear sides of the former pipe 151, the vertical heat sealer 161, 162, etc. At this time, since the central cylinder mechanism 60 releases the retraction of the heads 571 and 572, the front vertical heat sealer 161 projects forward. Similarly, when the automatic packaging machine 1 is stopped, the front vertical heat sealer 161 protrudes to the front side.
As described above, when the automatic packaging machine 1 is in a stopped state, the front vertical heat sealer 161 protrudes forward, and thus is separated from the transfer path through which the packaging film 421 passes as compared with the rear vertical heat sealer 162. Therefore, the packaging film 421 can be separated from the vertical heat sealer 161 serving as a heat source when the packaging film 421 is installed when the automatic packaging machine 1 is stopped, or when the packaging film 421 is changed due to specification changes. Furthermore, by separating the vertical heat sealer 161 from the transfer path of the packaging film 421, a space is generated between the vertical heat sealers 161 and 162, and it is easy to pass the packaging film 421 therebetween.

  As the automatic packaging machine 1 is driven, the two packaging films 421 and 422 sent through the Σ frame 36 are guided to the guide rollers 371 and 372. These guide rollers 371 and 372 are disposed on both front and rear sides of the former pipe 151 as shown in FIGS. Therefore, the former pipe 151 is interposed between the guide rollers 371 and 372. The two packaging films 421 and 422 that have passed through the guide rollers 371 and 372 are guided to the pair of former rollers 152 and 153 with the former pipe 151 interposed therebetween.

  These former rollers 152 and 153 are in close contact as shown in FIGS. For this reason, the two packaging films 421 and 422 sandwiched between the former rollers 152 and 153 are pressed in the front-rear direction by the former rollers 152 and 153 and overlapped in a close state. In addition, since the former rollers 152 and 153 closely contact the two packaging films 421 and 422 with a constant tension between the former pipes 151, the two packaging films 421 and 422 are attached to the former pipes 151. Close to the front and back surfaces. Therefore, the two packaging films 421 and 422 are transported while sliding on the surface of the former pipe 151.

  In this way, the two packaging films 421 and 422 are formed in the forming mechanism 15 so that the portion sandwiching the former pipe 151 swells and the former pipe 151 is in close contact. Further, as shown in FIGS. 5 and 6, on the plane including the substantially center line (this center line is substantially parallel to the longitudinal direction) viewed from the left and right side surfaces of the plurality of former pipes 151, the former rollers 152, Since 153 is in close contact, the two packaging films 421 and 422 are formed into a substantially symmetrical shape with respect to the front-rear direction.

  When the two formed packaging films 421 and 422 are sent between the vertical heat sealers 161 and 162, the central cylinder mechanism 60 simultaneously pulls the operating arms 561 and 562, via the headers 571 and 572. Then, the attachment member 531 is pulled back. At the same time, the cylinder mechanisms 70 at the left and right ends (the other not shown) push the operating arms 581 and 582 to push the mounting member 532 forward. As a result, the vertical heat sealers 161 and 162 sandwich the two packaging films 421 and 422 from the front and rear sides. The two sandwiched packaging films 421 and 422 are heated from both the front and rear sides, and are heat-sealed by melting the heat-sealing film formed inside thereof.

  After the heat sealing, the central cylinder mechanism 60 releases the retraction of the heads 571 and 572 and causes the operating arms 561 and 562 to protrude to their original positions. The cylinder mechanisms 70 at the left and right ends (the other not shown) also release the pushing of the working arms 581 and 582 and pull the working arms 581 and 582 to their original positions. When the pressing by the vertical heat sealers 161 and 162 is released, an interval is generated between them, and the packaging films 421 and 422 can be pulled down by the lowering operation of the horizontal seal mechanism 18.

  Thus, since the vertical heat sealers 161 and 162 heat seal the packaging films 421 and 422 between the former pipes 151, the vertical sealing mechanism 16 vertically seals the two packaging films 421 and 422. These portions and the bulging portions filled with the filling material are alternately formed in the width direction. Furthermore, as shown in FIGS. 5 and 6, the vertical heat sealers 161 and 162 are pressed against each other on the plane including the substantially center line viewed from the left and right side surfaces of the plurality of former pipes 151, so that heat sealing is performed. The two packaging films 421 and 422 are bonded together in a substantially symmetrical shape with respect to the front-rear direction.

  As described above, the automatic packaging machine 1 according to the present invention can form a four-side sealed package from the two packaging films 421 and 422 transferred in a substantially vertical direction. Since the automatic packaging machine 1 concerning this invention manufactures a package body in multiple rows simultaneously, a large number of four-side sealed packages can be manufactured at a time. Further, since a four-sided seal is used to add added value such as quality and luxury to the package, the automatic packaging machine 1 according to the present invention produces a high-quality four-sided seal package. It becomes possible.

  Furthermore, in this automatic packaging machine 1, since the position of the vertical heat sealers 161 and 162 of the vertical seal mechanism 16 can be easily adjusted, the bag width of the four-side seal package can be easily changed. Furthermore, in the vertical multi-row automatic packaging machine, the operation settings such as the transfer speed of the packaging films 421 and 422 can be easily changed, so that the length of the four-side sealed package can be easily changed. . Further, by changing the shape of the former pipe 151, the shape of the bag portion filled with the filling material can be easily changed. Thereby, the shape of the former pipe 151 and the appropriate amount of the filling material can be changed to form a four-side sealed package with a desired margin provided inside the bag.

  Furthermore, in the automatic packaging machine 1 according to the present invention, the two packaging films 421 and 422 are vertically sealed on a plane including a substantially center line viewed from the left and right side surfaces of the plurality of former pipes 151. -It is possible to form a four-side sealed package having a shape that is substantially symmetrical with respect to the back direction. Thereby, it becomes possible to manufacture a higher-quality packaging body having a good shape and a high-class feeling.

  In addition, in the automatic packaging machine 1 concerning this invention, the manufacturing speed of a package is improved by shortening the length of the former pipe 151 or shortening the distance from the fixed supply mechanism 13 to the forming mechanism 15. It is possible to make it. In addition, in the automatic packaging machine 1 according to the present invention, by changing the size and shape of the former pipe 151, not only a liquid material or a powder material but also a relatively large solid material can be filled. is there.

Embodiment 2 of the Invention
In the second embodiment of the present invention, the case where the rear vertical heat sealer in the vertical seal mechanism 16 is integrally configured will be described. The top view of FIG. 7 shows another example of the configuration of this integrally configured rear longitudinal heat sealer. In FIG. 7, the rear vertical heat sealer is indicated by reference numeral 80.

  As shown in FIG. 7, the vertical heat sealer 80 includes a base 81 and a heat seal portion 82. The base 81 has a substantially rectangular parallelepiped shape and is a member for connecting the heat seal portions 82 together. The heat seal part 82 is a member similar to the vertical heat sealer 162, and abuts against the packaging film 422 to perform heat seal. A plurality of heat seal portions 82 are arranged in multiple rows on the base 81, and each heat seal portion 82 is provided substantially in parallel in the short direction (perpendicular to the paper surface) of the base 81. Such a vertical heat sealer 80 incorporates a heating means such as a heater for heating the heat seal portion 82. This heating means may be incorporated in each of the heat seal portions 82 or may be incorporated in the base 81 to heat the entire heat seal portion 82.

  The vertical heat sealer 80 is attached to the attachment member 532 so that the heat seal portion 82 is disposed at the position of the vertical heat sealer 162. That is, in this attached state, the heat seal portion 82 is disposed between the former pipes 151 so as to face the vertical heat sealer 161. The vertical heat sealer 80 performs vertical sealing by pressing and pulling operations by the cylinder mechanisms 70 at the left and right ends (the other is not shown), similarly to the plurality of vertical heat sealers 162. At this time, since the entire heat seal portion 82 is integrally configured via the base 81, it operates simultaneously.

  As described above, in the case of the vertical heat sealer 80 in which the heat seal portion 82 is integrally connected by the base 81, the position can be easily adjusted as compared with the case where each of the vertical heat sealers 162 is adjusted. . Further, when the heating means is built in the base 81, the heating means built in the vertical heat sealer 162 can be easily replaced and the working efficiency can be improved as compared with replacing the heating means built in the vertical heat sealer 162 individually. it can.

  In addition, in this embodiment, although the case where the back side vertical heat sealer 80 was integrally connected via the base 81 was demonstrated, not only this but the front side vertical heat sealer is connected integrally. Alternatively, the longitudinal heat sealers on both the front and rear sides may be integrated.

It is a front view which shows the vertical multi-row four-way seal automatic filling and packaging machine in the embodiment of the present invention. It is a side view which shows the vertical multi-row four-way seal automatic filling and packaging machine in the embodiment of the present invention. It is a front view which shows one structural example of the vertical seal | sticker mechanism in embodiment of this invention. It is a rear view which shows the example of 1 structure of the vertical seal | sticker mechanism in embodiment of this invention. It is a side view which shows one structural example of the vertical seal | sticker mechanism in embodiment of this invention. It is a side view which shows one structural example of the vertical seal | sticker mechanism in embodiment of this invention. It is a top view which shows the other structural example of the vertical seal | sticker mechanism in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vertical multi-row automatic filling and packaging machine (automatic packaging machine), 11 Main body frame, 12 Hopper, 13 Fixed quantity supply mechanism, 14 Shuter, 15 Forming mechanism, 151 Former pipe, 152,153 Former roller, 16 Vertical seal mechanism 161, 162 Vertical heat sealer, 17 Slit mechanism, 18 Horizontal seal mechanism, 19 Cutter mechanism, 20 Discharge mechanism, 21 Operation panel 310 Paper feed roller, 311 Pinch roller, 32 Step roller, 33 Paper feed control mechanism, 340 Control roller , 341 Pinch roller, 35 slitter, 36 Σ frame, 361, 362 Frame guide roller, 371, 372 Guide roller 40 Original roll, 41 Sheet film, 421, 422 Packaging film

Claims (6)

A forming mechanism that overlaps two packaging films sent substantially vertically downward to form a packaging bag;
A vertical sealing mechanism and a horizontal sealing mechanism for sealing the four sides of the packaging bag by synchronously vertical sealing and horizontal sealing while pulling out each of the two packaging films one by one;
A filling mechanism for supplying and filling a filling material between the two sealed packaging films;
A vertical multi-row four-sided automatic filling and packaging machine having a cutter mechanism that cuts a plurality of the packaging bags filled with the filling material at the position of the horizontal seal and divides the packaging into four-side sealed packages. And
The forming mechanism is arranged in multiple rows in a substantially horizontal direction, and a plurality of former pipes that introduce the filling material supplied by the filling mechanism into the packaging bag while being sandwiched between the two packaging films. With
The vertical seal mechanism includes a plurality of pairs of first and second vertical heat sealers arranged in parallel between the plurality of former pipes and facing each other with the two packaging films interposed therebetween,
A plurality of pairs of first and second vertical heat sealers operate in the opposite direction and sandwich the two packaging films to vertically seal the vertical multi-row four-side seal automatic filling and packaging machine.   2. The vertical multi-row four-side seal automatic filling and packaging machine according to claim 1, wherein the first and second vertical heat sealers are attached so that their positions can be adjusted in the direction in which the former pipes are juxtaposed.   The first and second vertical heat sealers vertically seal the two packaging films on a plane including a substantially center line in a side view of the plurality of former pipes. The vertical multi-row four-side seal automatic filling and packaging machine described.   In the stopped state of the vertical multi-row four-way seal automatic filling and packaging machine, one of the first or second vertical heat sealer is stopped away from the transfer path of the two packaging films compared to the other. The vertical multi-row four-side seal automatic filling and packaging machine according to any one of claims 1 to 3.   An interval holding member is provided in the former pipe to hold an interval between two packaging films that have passed through the lower end of the former pipe at least as wide as a thickness of the lower end of the former pipe. Item 5. The vertical multi-row four-way seal automatic filling and packaging machine according to any one of Items 1 to 4.   6. The vertical multi-row four-side seal automatic filling and packaging machine according to claim 1, wherein either the first or second vertical heat sealer is integrally connected.

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