JP4977080B2 - Horizontal bag making and filling machine - Google Patents

Description

  The present invention relates to a horizontal bag making and filling machine capable of filling and packaging articles in a rectangular tube bag.

Conventionally, by forming corners at the four corners of a packaging bag obtained by a horizontal bag making and filling machine, it has been made easy to stand on its own or add value to give a high-class feeling. The horizontal bag making and filling machine for obtaining such a rectangular tube-shaped packaged product is provided at each corner when the film is formed into a rectangular tube shape on the way until the film is transferred toward the bag making means. A crease forming device for continuously forming the streak at the corresponding position is provided. Then, after forming the film into a rectangular tube shape by the bag-making means along the lines formed by the crease forming device, a longitudinal seal is applied to the longitudinal edge of the tubular film on the downstream side, and the tubular film Pillow packages having corners at four corners can be obtained by applying a horizontal seal in a direction intersecting with the vertical seal at the front and rear positions sandwiching the article accommodated in (see, for example, Patent Document 1).
JP 2001-301707 A

  In the packaged product obtained by the apparatus disclosed in Patent Document 1, a vertical seal portion having a predetermined width is formed so as to intersect each horizontal seal portion formed at the front and rear positions of the bag. Therefore, it is pointed out that there is a difficulty in restricting the design of the printing applied to the bag, such as handling the side where the vertical seal portion is provided as the back surface of the packaged product. It is possible to obtain a packaged product that does not have a vertical seal portion of a predetermined width by bagging an article using a bag that is sealed in three directions in advance, but in this case, high-speed processing cannot be performed. The difficulty that productivity cannot be raised is pointed out.

  In view of the above-mentioned problems inherent in the prior art, the present invention has been proposed to suitably solve these problems, and does not impair the aesthetics and luxury, and is not restricted in terms of design. It is an object of the present invention to provide a horizontal bag making and filling machine capable of obtaining the above.

In order to overcome the above-mentioned problems and achieve the intended object, a horizontal bag making and filling machine according to claim 1 of the present application is
The folds are parallel to the strip film drawn from the supply source at positions corresponding to the three corners when the film is formed into a rectangular tube shape according to the height and width dimensions of the article, respectively, along the film transport direction. Crease forming means to be formed into,
The three folds are arranged on the downstream side of the fold forming means, and the three folds are used as a reference so as to superimpose both end edges in the longitudinal direction of the belt-like film at a position corresponding to one upper corner. Forming the belt-like film into a rectangular tube shape, and extending the film polymerization edge toward the outer side obliquely upward and guiding it downstream,
Arranged on the downstream side of the bag making means, the rotation axis is inclined to the extending side of the film polymerization edge with respect to the vertical line, and the film polymerization edge is sandwiched and transferred downstream. and fusing the sealing means and a fusing roller for fusing seal the feed rollers and the film polymer edge portion,
Supply means for supplying an article to the obtained tubular film;
Gusset forming means for performing gusset folding before and after the film transfer direction sandwiching the article accommodated in the tubular film;
It is characterized by comprising transverse sealing means for sealing in a direction crossing the film transport direction before and after the film transport direction sandwiching the article accommodated in the tubular film.

  The gist of the invention according to claim 2 is that an inclination angle of the rotation axis of the feed roller and the fusing roller with respect to a vertical line is set in a range of 5 degrees to 20 degrees.

  The gist of the invention according to claim 3 is to provide a transfer conveyor for sucking the cylindrical film formed by the bag making means from the bottom side and transferring it to the fusing and sealing means.

  The gist of the invention according to claim 4 is that a pressing conveyor is provided on the downstream side of the fusing sealing means to press and transfer the cylindrical film containing the article from the upper surface side.

  In the invention which concerns on Claim 5, the upper surface and film superposition | polymerization edge part in the cylindrical film shape | molded by the bag making means extend in the downstream of the said bag making means to the film fusing position by the said fusing sealing means. The gist is to provide a first guide for supporting the side surface opposite to the side and a second guide for supporting the other side surface of the tubular film.

In the invention which concerns on Claim 6, the said articles | goods are the assembly goods which laminated | stacked the soft material,
The supply means includes a sandwiching conveyor that compresses articles with upper and lower belts and feeds them into the cylindrical film,
The gusset forming means includes a pushing piece for pushing the tubular film from both sides at the front and rear positions in the film transfer direction across the sealing body of the transverse sealing means, and a side surface of the article accommodated in the tubular film that operates in synchronization with the pushing piece. The gist of the present invention is to provide holding pieces for holding the film through the film.

According to the invention which concerns on Claim 1, the package item which is not provided with the vertical seal part of a predetermined width is obtained by making the site | part located in one corner | angular part in a cylindrical film into a fusing seal part. Therefore, the packaging product can freely select a print design without being restricted by the front and back, and can obtain a packaging product with high added value without impairing the aesthetics and the high-class feeling. In addition, products that have been packed using bags that have been made in the past can also be packed and packaged with this device, and the production capacity can be increased compared to conventional products. There is an effect of improving the sex.
Furthermore, by fusing and sealing the edge of the film polymerization with the fusing roller disposed at an inclination, it is possible to prevent the corner after the fusing and sealing in the tubular film from rising upwards and impairing the appearance.
According to invention of Claim 2, it can prevent reliably that the corner | angular part after the fusion sealing in a cylindrical film stands up. In addition, even if the article is a soft material such as a sanitary napkin, the film is prevented from being deformed by suppressing the film from being pulled to the fusing seal side due to excessive inclination of the fusing roller. can do.
According to the invention which concerns on Claim 3, when the strip | belt-shaped film in which the crease was formed previously is shape | molded in a square tube shape, it can shape | mold stably so that each crease part may align with the target corner | angular part. .
According to the invention which concerns on Claim 4, it can prevent that a cylindrical film becomes a rhombus and a parallelogram, and can hold | maintain a square-tube-shaped square state favorably. Further, when the air in the tubular film is pushed upstream during the horizontal sealing, the articles accommodated in the film at predetermined intervals can be prevented from being displaced by the air.
According to the invention which concerns on Claim 5, when shape | molding a strip | belt-shaped film in a rectangular tube shape, it can prevent that the articles | goods in a cylindrical film shift | deviate, and a film can be shape | molded stably in a rectangular tube shape.
According to the invention of claim 6, a package in which a collective product in which soft articles such as sanitary napkins are laminated is compressed in the vertical direction and sent to the film so that the collective product is closely attached in the film. Goods can be obtained. Further, when the gusset is folded, the positional deviation of the article in the film can be corrected to obtain a well-packed rectangular package.

  Next, a preferred embodiment of the horizontal bag making and filling machine according to the present invention will be described below with reference to the accompanying drawings. In addition, in an Example, the collective goods which laminated | stacked soft articles, such as a sanitary napkin and a disposable diaper, by the predetermined number unit are illustrated as an article | item.

  FIG. 1 is a schematic diagram showing the overall configuration of a horizontal bag making and filling machine according to an embodiment, and a supply conveyor (supply means) 10 located on the most upstream side is circulated by a drive motor (not shown). The first conveyor 12 that transports the articles W to the downstream side at predetermined intervals by the pushing members 11 arranged at predetermined intervals, and is connected to the downstream side of the first conveyor 12 and delivered from the first conveyor 12. And a second conveyor (nipping conveyor) 13 for feeding the article W to a tubular film Fa formed into a tubular shape by a bag making means 23 described later. The second conveyor 13 is composed of a pair of belt conveyors 14 and 15 that are spaced apart from each other across the article transport path, and the spacing between the belt surfaces facing each other across the article transport path in both belt conveyors 14 and 15 is The dimension is set such that the article W can be compressed by a predetermined amount. Then, the belt W and the belt conveyors 14 and 15 are circulated by a drive motor (not shown) so that the articles W fed from the first conveyor 12 are compressed from above and below by the belt conveyors 14 and 15 at predetermined intervals. The film is fed toward the film-shaped film Fa. Both belt conveyors 14 and 15 have a plurality of endless belts spaced apart in the width direction, and the downstream end position of each endless belt is a space formed by the inclined edge of the film guide plate 24b on the upper surface of the bag making means 23. The film polymerization edge f (described later) that is polymerized in the shape of a palm of the tubular film Fa is configured to be biased toward the upstream side from the one side facing the other side to the bag making means 23. It is configured not to interfere (see FIG. 4). The upper belt conveyor 14 is configured such that the height can be adjusted in the vertical direction, and the distance from the lower belt conveyor 15 can be adjusted according to the height dimension of the article W.

  Below the supply conveyor 10, an original fabric roll (supply source) 16 in which a heat-weld belt-like film F made of a material such as polyethylene is wound into a roll is rotatably disposed. Folding crease forming means 18 for providing a crease 17 to the belt-like film F is arranged in the course of transfer until the belt-like film F drawn from the raw fabric roll 16 is transferred to the bag making means 23. As shown in FIG. 2, the crease forming means 18 can be rotated integrally with the rotary shaft 19 which is rotatably arranged in the machine frame and extends in a direction crossing the film transport direction. The three first rotators 20 disposed on the support shaft 21 and the support shaft 21 disposed on the machine frame parallel to the rotation shaft 19 are rotatably disposed at positions corresponding to the first rotators 20. The second rotating body 22 is provided, and the belt-like film F is configured to pass between the rotating bodies 20 and 22.

  The rotating shaft 19 is configured to rotate by a drive motor (not shown) and rotate the first rotating body 20 at the same peripheral speed as the transfer speed of the belt-like film F. Further, on the peripheral surfaces of the first rotating body 20 and the second rotating body 22, a concave portion is formed on one side and a convex portion is formed on the other side, and the convex portion is in contact with the concave portion with the belt-like film F interposed therebetween. In this state, the rotary members 20 and 22 are rotated along with the transfer of the film F so that the folds 17 along the transfer direction are continuously formed on the belt-like film F (see FIG. 2).

  Each of the pair of rotating bodies composed of the paired first rotating body 20 and second rotating body 22 is formed into a rectangular prismatic tube shape by the bag making means 23 according to the height and width dimensions of the article W. The rotating shaft 19 and the support shaft 21 are disposed so as to have a positional relationship in which the crease 17 can be formed with respect to three corners of the film-shaped film Fa. In the embodiment, the folding ridges 17 are formed at positions corresponding to the lower two corners and the upper left (other) corner of the tubular film Fa shown in FIG. Further, the first rotating body 20 and the second rotating body 22 are moved and adjusted in the axial direction of the rotating shaft 19 and the support shaft 21 in accordance with the change in the position of the corner portion corresponding to the size of the different rectangular cylindrical films. It has come to be able to do.

  A bag-making means 23 is disposed on the downstream side of the supply conveyor 10, and the belt-like film F drawn upward from the lower roll 16 is passed through the cylindrical body 24 of the bag-making means 23. The article W is formed into a rectangular tube according to the height and width dimensions of the article W, and the article W is supplied into the obtained tubular film Fa at regular intervals via the supply conveyor 10. It has become. As shown in FIG. 3, the bag making means 23 has a notch 24 a formed at the upper right (one) corner of the cylindrical body 24 formed in a rectangular tube shape. The strip-shaped film F drawn into the cylindrical main body 24 has the longitudinal end edges extending along the transfer direction so as to extend outward from the notch 24a and be polymerized in a palm-like manner. It is formed into a rectangular tube shape based on one crease 17.

As shown in FIG. 3, the cylindrical main body 24 has a pair of guide plates 25, 25 extending obliquely upward toward the outer side at a position corresponding to the notch 24a, extending in parallel to the film transport direction. The film overlapping edge part f is guided between the guide plates 25 and 25 downstream. Note that the inclination angle of the pair of guide plates 25, 25 is preferably set to the same value as the inclination angle θ of the fusing roller 33 described later. The upstream edge of the film guide plate 24b constituting the upper surface of the cylindrical main body 24 is formed so as to incline toward the cutout portion 24a toward the downstream side in the film transfer direction. As shown in FIG. 4, an opening is provided to extend the film outward from the corner on the film polymerization edge f side, and a film guide plate that defines this space is provided. The downstream end portions of the endless belts of the upper belt conveyor 14 are arranged in accordance with the inclined edge 24b. Further, the bag making means 23 is provided with an auxiliary guide 30 for guiding the film overlap edge f on the downstream side of the guide plates 25, 25, and the auxiliary guide 30 is predetermined along the transfer direction of the tubular film Fa. It extends in length. The auxiliary guide 30 is preferably inclined at the same angle as the inclination angle θ of the fusing roller 33.

  As shown in FIG. 1, on the downstream side of the bag making means 23, when the tubular film Fa is transferred, the seal bodies 38, 39 in the lateral seal means 40 described later from the outlet of the bag making means 23 are arranged. A transfer conveyor 26 that supports and transfers the bottom surface of the article W accommodated in the tubular film Fa through the film is disposed until just before the position. The transfer conveyor 26 is composed of an endless belt, and a plurality of suction ports that allow suction of the tubular film Fa by the suction means 27 are continuously drilled in the running direction. Further, a suction chamber 27 as a suction means is disposed in a predetermined range from the outlet of the bag making means 23 to the fusing and sealing means 31, and the tubular film Fa is sucked and held in a suction section by the suction chamber 27. It is configured as follows.

  On the downstream side of the bag making means 23, as shown in FIG. 5, the upper surface portion 28a for supporting the upper surface of the tubular film Fa and the side surface opposite to the side on which the film polymerization edge portion f of the tubular film Fa extends. The 1st guide 28 which consists of the side part 28b which supports is provided so that it may extend until the film fusing position by the fusing sealing means 31 mentioned later. Further, a second guide 29 that supports the other side surface of the tubular film Fa so as to face the side surface portion 28b of the first guide 28 across the transfer path of the tubular film Fa extends to the vicinity of the lateral sealing means 40. Is arranged.

  Above the transfer conveyor 26 on the downstream side of the bag making means 23, a fusing seal means 31 for fusing and sealing the film polymerization edge f of the tubular film Fa is disposed. As shown in FIGS. 4 and 5, the fusing and sealing means 31 has a rectangular cylindrical shape 1 by fusing and sealing the edge f of the tubular film Fa so as to face each other with the film overlapping edge f sandwiched therebetween. It has a pair of fusing rollers 33 and 33 that form a fusing seal portion 32 (see FIG. 8) as one corner. Further, on the upstream side of the fusing rollers 33, 33, a pair of feed rollers 34, 34 are disposed that sandwich the film overlapping edge f of the tubular film Fa and continuously rotate in opposite directions. Further, on the downstream side of the fusing rollers 33, 33, a pair of auxiliary rollers 36, 36 for guiding the chips cut by the fusing rollers 33, 33 to the suction pipe 35 of the scrap collecting means are disposed.

  As shown in FIG. 5, the fusing roller 33 and the feed roller 34 are arranged such that the rotation axis C is inclined at a required angle with respect to the vertical line L toward the extending side of the film overlapping edge portion f. Is done. Then, a fusing seal is provided at the corners while the film overlapping edge f is held obliquely from the upper corner portion of the bag body of the tubular film Fa by the fusing rollers 33 and 33 toward the outside. By performing, it is comprised so that the corner | angular part after a fusion | melting seal | sticker may suppress standing up. The inclination angle θ of the rotation axis C of the fusing roller 33 and the feed roller 34 with respect to the vertical line L is preferably set within a range of 5 degrees to 20 degrees, and preferably within a range of 5 degrees to 10 degrees. Most preferred. If the inclination angle θ is smaller than 5 degrees, the effect of suppressing the rise of the corner portion after the fusing seal is low, and if the inclination angle θ is larger than 20 degrees, a sanitary napkin or the like as in this embodiment is used. When a soft and lightweight article W is packaged, the tendency of the formed film to be pulled toward the fusing roller is increased, and there is a possibility that it becomes a parallelogram or a rhombus.

  On the downstream side of the fusing and sealing means 31, a pressing conveyor 37 that presses and transports the article W accommodated in the tubular film Fa from the upper surface side is disposed. The pressing conveyor 37 has an adsorption belt 37a that adsorbs and transfers the upper surface of the tubular film Fa through a suction port using negative suction pressure of air. The pressing conveyor 37 is configured to be able to adjust the pressing height of the article W.

  On the downstream side of the pressing conveyor 37, there is disposed a horizontal sealing means 40 provided with a pair of seal bodies 38, 39 that are vertically opposed to each other across the transfer path of the tubular film Fa so as to be movable toward and away from each other. (See FIG. 6). The horizontal sealing means 40 is required downstream with the transfer of the tubular film Fa in a state where the substantially central position between the front and rear articles W, W in the tubular film Fa is held at a substantially intermediate position of the article height. After moving horizontally by a distance, the tubular film Fa is laterally sealed by being separated from each other. The upper sealing body 38 of the horizontal sealing means 40 includes a knife 41. When the cylindrical film Fa is laterally sealed by the upper and lower sealing bodies 38, 39, the tubular film Fa is cut in the width direction by the knife 41. Configured to do.

  Gusset forming means provided with a pair of pushing pieces 42 and 43 opposed to each other across the transfer path of the tubular film Fa at the front and rear positions in the film transfer direction between which the seal bodies 38 and 39 are sandwiched. 44 is arranged. The gusset forming means 44 is disposed so as to be movable integrally with the movement of the upper and lower seal bodies 38, 39 in the film transfer direction, and the both seal bodies 38 are formed by a pair of pushing pieces 42, 43. , 39 are moved forward and backward in synchronism with the vertical movement, and the gusset is formed by folding inward both sides in the width direction of the front-rear position sandwiching the article W accommodated in the tubular film Fa. Further, as shown in FIG. 7, the pushing pieces 42 and 43 are respectively provided with thin plate-like holding pieces 42a and 43a extending away from the seal bodies 38 and 39 along the film transfer direction. When gusset folding is performed at 42 and 43, the holding pieces 42a and 43a that move together with the pushing pieces 42 and 43 are configured to hold down the side surface of the article W accommodated in the tubular film Fa.

  The support member 45 on which the upper seal body 38 is disposed is provided with a deaeration holding means 46 that deaerates the inside of the bag and holds the article W during lateral sealing. As shown in FIG. 1, the deaeration holding means 46 includes a pressing body 47 located on the downstream side of the upper seal body 38 and a holding body 48 located on the upstream side. The pressing body 47 and the holding body 48 are configured to be movable up and down independently by driving means 49 and 50 such as an air cylinder. The pressing body 47 is composed of an elastic body such as sponge, and presses the tubular film Fa located on the downstream side from the upper surface side when the pressing body 47 is lowered by the driving means 49. Further, the holding body 48 is configured to restrict the position of the upstream end of the article W accommodated in the tubular film Fa located on the upstream side when lowered by the driving means 50 (two points in FIG. 1). (See chain line).

  On the downstream side of the upper seal body 38, a cooling means 51 is provided extending in the width direction of the seal bodies 38, 39 to eject air toward the lateral seal portion provided by the both seal bodies 38, 39. (See FIG. 7).

  As shown in FIG. 1, a belt-type carry-out conveyor 52 having the same transfer level as that of the transfer conveyor 26 is disposed on the downstream side of the horizontal sealing means 40. The opposite end portions of the conveyors 26 and 52 move away from each other when the pair of seal bodies 38 and 39 are close to each other and allow the lower seal body 39 to pass therethrough. When the sheets 39 are separated from each other, the articles W in the cylindrical film Fa can be smoothly transferred from the transfer conveyor 26 to the carry-out conveyor 52 by moving close to each other. Further, the belt traveling speed of the carry-out conveyor 52 is set to be higher than the belt traveling speed of the transfer conveyor 26, and the packaged product 53 obtained by transverse sealing and cutting by the lateral sealing means 40 is used as the end of the tubular film Fa. It is configured so that it can be reliably separated from and transported downstream.

(Effects of Example)
Next, the operation of the horizontal bag making and filling machine according to the above-described embodiment will be described.

  Until the strip-shaped film F drawn out from the raw roll 16 disposed below the supply conveyor 10 is transferred toward the bag making means 23, three sets of the folding sheet forming means 18 shown in FIG. Three folds 17 are formed along the transfer direction so as to be separated in the width direction by the rotating body set. When the band-like film F on which the crease 17 is formed is formed into a cylindrical shape by the bag making means 23, as shown in FIG. 3, two corners below the cylindrical main body 24 and an upper left corner are formed. Each crease 17 is formed in a corresponding shape in a square rectangular tube shape, and both end edges in the longitudinal direction are formed at the upper right corner of the cylindrical body 24. It extends outwardly from the notch 24a and is polymerized in the form of a palm. The film overlap edge f is guided downstream between the pair of guide plates 25, 25.

  The article W is pushed by the pushing member 11 of the first conveyor 12 and delivered to the second conveyor 13, and the article W is compressed by the upper and lower belt conveyors 14 and 15, and the cylindrical film Fa. Is sent to. That is, the article W in which soft items such as sanitary napkins are stacked and stacked can be accommodated in a state of being in close contact with the tubular film Fa. In addition, the downstream end portion of each endless belt of the upper belt conveyor 14 is aligned with an inclined edge that defines a void formed in the upper surface of the cylindrical body 24 as shown in FIG. Since it is arranged so as to be biased downstream from the side opposite to the extending side of f toward the extending side, the article W can be reliably supplied to the tubular film Fa in a compressed state.

  The tubular film Fa formed by the bag making means 23 is transferred to the downstream side together with the articles W by the transfer conveyor 26. At this time, since the bottom surface of the tubular film Fa is transferred to the belt surface of the transfer conveyor 26 while being sucked by the suction chamber 27, the tubular film Fa is suppressed from being biased in the width direction. In other words, the band-like film F is stably formed into a rectangular tube shape by being drawn so that the folding folds 17 are aligned with the corresponding corner portions of the cylindrical body 24 in the bag making means 23. Further, the cylindrical film Fa transferred by the transfer conveyor 26 is supported by the first guide 28 and the second guide 29 on the upper surface and the left and right side surfaces, and the article W in the cylindrical film Fa is displaced. In addition to being prevented, the tubular film Fa can be stably formed in a rectangular tube shape.

  Note that the film overlapping edge f extending obliquely to the upper corner of the tubular film Fa is supplied in a stable posture toward the fusing sealing means 31 by being guided by the auxiliary guide 30. The

  The film overlapping edge portion f is transferred to the downstream side while being sandwiched by the feed rollers 34 in the fusing and sealing means 31. Further, the overlap edge portion f is transferred to the downstream side while being sandwiched by the fusing rollers 33, 33 disposed on the downstream side of the feed rollers 34, 34, so that the overlap edge portion f is fused and sealed. The Thereby, the fusing seal | sticker part 32 is continuously formed corresponding to one upper corner | angular part in the cylindrical film Fa. Further, by providing a fusing seal while the film overlapping edge f is held obliquely by the fusing rollers 33 and 33 that are inclined, it is possible to prevent the corner corresponding to the fusing seal portion 32 from rising up after the fusing seal. It is prevented that the appearance is impaired. Further, when the tubular film Fa is transferred, it is possible to prevent the film from being stretched or altered due to the heat effect of the fusing rollers 33 and 33. Furthermore, when fusing and sealing with the fusing rollers 33 and 33, the tubular film Fa is not pulled and deformed into a parallelogram, a rhombus, or the like. In addition, the cylindrical film Fa and the article W are supported on the upper and left and right sides by the first guide 28 and the second guide 29, so that the article W is not misaligned at the time of fusing sealing. It is prevented that 32 is formed diagonally.

  Chips blown by the fusing rollers 33, 33 are sandwiched between auxiliary rollers 36, 36 disposed on the downstream side of the fusing rollers 33, 33, guided to the suction pipe 35 of the waste collecting means, and the tubular film Fa. It is surely disconnected from.

  The tubular film Fa on which the fusing seal portion 32 is formed is transferred toward the horizontal sealing means 40 by the transfer conveyor 26. Further, on the downstream side of the fusing and sealing means 31, the tubular film Fa is pressed from the upper surface side by the pressing conveyor 37 and transferred while being adsorbed and held by the adsorbing belt 37a. The deformation of the film film Fa is suppressed, and the air in the tubular film Fa can be prevented from flowing back to the upstream side when the film is horizontally sealed at the downstream position.

  The upper and lower sealing bodies 38, 39 of the lateral sealing means 40 are close to each other while moving upstream and then downstream. At this time, the opposite ends of the transfer conveyor 26 and the carry-out conveyor 52 are separated from each other, and the lower seal body 39 extends above the transfer path through a gap formed therebetween, and the cylinder is formed between the upper seal body 38 and the upper seal body 38. The film-shaped film Fa is clamped at a substantially central position of the article height.

  Further, at the timing before the sealing bodies 38 and 39 abut, the pushing pieces 42 and 43 of the gusset forming means 44 are operated and the cylindrical film Fa is moved before and after the sealing body 38 and 39 in the film transfer direction. By folding both side surfaces inward, gusset folding is applied to the front and rear side surfaces of the tubular film Fa sandwiching the article W. The pair of seal bodies 38 and 39 moves substantially horizontally by a required distance in accordance with the transfer of the tubular film Fa while sandwiching the tubular film Fa, and horizontally seals and cuts the tubular film Fa. As a result, as shown in FIG. 8, a packaged package 53 in which the fusing seal part 32 is formed at one corner of the square tube shape is obtained. Since the packaged package 53 does not have a vertical seal portion with a predetermined width, the print design can be freely selected without being constrained on the front and back sides, and the added value can be increased without impairing the aesthetics and luxury. Can do.

  Further, when the gusset is folded, the articles W and W positioned in the front and rear in the film transfer direction sandwiching the sealing bodies 38 and 39 by the holding pieces 42a and 43a provided on the pushing pieces 42 and 43 are disposed on both sides through the film. Therefore, the articles W, W are not displaced and the horizontal seal is stabilized and the gusset folds are formed well. As a result, a well-packed rectangular package 53 can be obtained.

  Further, before the pair of sealing bodies 38, 39 of the lateral sealing means 40 sandwich the tubular film Fa, the pressing body 47 of the deaeration holding means 46 located on the downstream side of the sealing bodies 38, 39 operates. By pressing the tubular film Fa from above by a predetermined amount, the air inside the bag is pushed upstream, so that the article W accommodated in the tubular film Fa is in close contact with the film. Prior to the operation of the pressing body 47, the holding body 48 of the deaeration holding means 46 located on the upstream side of the sealing bodies 38 and 39 is operated, and the upstream side of the article W accommodated in the upstream tubular film Fa. Edge position regulation is performed. Accordingly, it is possible to prevent the position of the article W from being deviated due to the deaeration in the bag by the pressing body 47 and the air pushed to the upstream side when the sealing bodies 38 and 39 sandwich the tubular film Fa. Moreover, since the article W accommodated in the tubular film Fa is pressed from the upper surface side through the film also by the pressing conveyor 37 disposed on the upstream side of the horizontal sealing means 40, the tubular film Fa. The positional deviation of the upstream articles W accommodated at regular intervals is reliably prevented.

  When the pair of seal bodies 38, 39 move away from each other to release the tubular film Fa, the packaged package 53 that has been laterally sealed and cut is laterally sealed by the carry-out conveyor 52 operating at high speed. Immediately downstream from the means 40. In addition, at the timing after the sealing bodies 38 and 39 release the tubular film Fa, the pushing pieces 42 and 43 of the gusset forming means 44 are retracted, and the leading ends of the transfer conveyor 26 and the carry-out conveyor 52 are opposed to each other. , The gap between the opposing portions of the conveyors 26 and 52 is reduced, and the delivery of the tubular film Fa (article W) between the conveyors is performed without any trouble. In addition, the cooling means arrange | positioned in the downstream of the sealing body 38 toward the horizontal seal part given by both the sealing bodies 38 and 39 at the predetermined timing after the sealing bodies 38 and 39 release the cylindrical film Fa. Air is sprayed from 51 to be cooled. That is, even in a polyethylene-based film, the lateral seal portion is cooled early and reliably sealed, and the seal portion may break due to the expansion force of the article W stored in a compressed state. Absent. Further, it is possible to prevent the horizontal seal portion from being contracted or wrinkled by latent heat.

  The horizontal bag making and filling machine of the example is obtained by fusing and sealing the film polymerization edge portion f polymerized in a palm shape at a position corresponding to one corner portion in the tubular film Fa formed into a square tube shape, Since the bag-packed package 53 having no vertical seal portion of a predetermined width is manufactured, the articles that are bag-packed using one bag that has been bag-made in advance are processed by the horizontal bag-filling machine. By packaging, the packaging capacity can be increased and productivity can be improved.

(Example of change)
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
1. In the embodiment, the article W has been described as a collective product in which a plurality of soft objects are stacked and stacked. However, the target article W is not limited to this, and may be a single article W. Also, the properties of the article W are not limited.
2. In the embodiment, the case where the folds 17 are formed by sandwiching the belt-like film F between the pair of rotating bodies 20 and 22 is described. However, as long as the folds 17 can be formed along the film transfer direction, A configuration in which a fixedly arranged guide plate and a rotating body that rotates so as to be in contact with a groove provided in the guide plate with a film interposed therebetween may be adopted.
3. In the embodiment, the case where the suction chamber 27 for sucking the film onto the belt surface of the transfer conveyor 26 is disposed between the bag making means 23 and the fusing and sealing means 31 is described. It is not limited to this. For example, the suction chamber 27 may be disposed between the fusing sealing means 31 and the horizontal sealing means 40, and in this case, it is possible to suppress deformation of the tubular film Fa during the horizontal sealing. Moreover, the structure which each arrange | positions the suction chamber 27 between the bag making means 23 and the fusing sealing means 31 and between the fusing sealing means 31 and the horizontal sealing means 40 can be adopted.
4). In the embodiment, the holding pieces 42a and 43a are integrally formed with the pushing pieces 42 and 43 of the gusset forming means 44. However, the holding pieces 42a and 43a are not limited to this configuration. As a separate body from 42 and 43, a configuration that operates individually at different timings can be adopted. By separately driving the holding pieces 42a and 43a in this way, the operation considering the operation timing with the deaeration holding means 46 can be performed, and gusset formation and lateral sealing can be performed while the article W is surrounded from all sides. In addition, the square tubular form of the packaged package 53 can be more reliably formed. The holding pieces 42a and 43a may be made of an elastic body such as a sponge.
5. The various other configurations are not limited to the configurations and methods of the embodiments, and various known techniques can be employed.

It is a schematic block diagram which shows the whole horizontal bag-making filling machine which concerns on an Example. It is a schematic plan view which shows the crease forming means based on an Example. It is a schematic side view which shows the state which looked at the bag making means which concerns on an Example from the upstream. It is a schematic plan view which shows the bag making means and melt | fusion cutting means which concern on an Example. It is a schematic side view which shows the state which looked at the fusing roller in the fusing sealing means which concerns on an Example from the upstream. It is a schematic side view which shows the state which looked at the horizontal sealing means which concerns on an Example from the upstream. It is explanatory drawing which shows the relationship between the sealing body of the horizontal sealing means which concerns on an Example, a gusset formation means, and a cooling means. It is a schematic perspective view which shows the bag-packed package manufactured with the horizontal bag-making filling machine which concerns on an Example.

Explanation of symbols

10 Supply conveyor (supply means), 13 Second conveyor (Nipping conveyor)
16 Raw roll (supply source), 17 fold fold, 18 fold fold forming means, 23 bag making means 26 transfer conveyor, 28 first guide, 29 second guide, 31 fusing sealing means 37 pressing conveyor, 38 upper seal body ( Sealing body), 40 Horizontal sealing means 42 Pushing piece, 42a Holding piece, 43 Pushing piece, 43a Holding piece 44 Gusset forming means, W article, F strip film, Fa cylindrical film C Rotating axis, L Vertical line, θ Inclination angle

Claims (6)

Positions corresponding to the three corners when the film (F) is formed into a rectangular tube shape according to the height and width dimensions of the article (W) on the strip-like film (F) drawn from the supply source (16) Fold forming means (18) for forming the folds (17) in parallel along the film transfer direction, respectively,
The downstream side of the crease forming means (18), and the both end edges in the longitudinal direction of the belt-like film (F) are superposed in a palm-like manner at positions corresponding to one upper corner. The belt-like film (F) is formed into a rectangular tube shape with reference to the folding fold (17) of the book, and the film polymerization edge (f) extends obliquely upward toward the outside and is guided downstream. Bag making means (23);
Arranged on the downstream side of the bag making means (23), the rotation axis (C) is inclined to the extending side of the film polymerization edge (f) with respect to the vertical line (L), the film polymerization fusing the sealing means having edges and a feed roller (34, 34) and the film polymer edge portion (f) fusing roller (33, 33) for blowing seal which sandwich the (f) transferring to the downstream side (31 )When,
Supply means (10) for supplying the article (W) to the obtained tubular film (Fa),
Gusset forming means (44) for performing gusset folding before and after the film transfer direction sandwiching the article (W) accommodated in the tubular film (Fa),
A lateral shape characterized by comprising transverse sealing means (40) for sealing in a direction intersecting the film transport direction before and after the film transport direction sandwiching the article (W) accommodated in the tubular film (Fa). Bag making and filling machine.   The inclination angle (θ) with respect to the vertical line (L) of the rotation axis (C) of the feed roller (34, 34) and the fusing roller (33, 33) is set within a range of 5 degrees to 20 degrees. Item 2. The horizontal bag making and filling machine according to Item 1.   The horizontal product according to claim 1 or 2, further comprising a transfer conveyor (26) for sucking the cylindrical film (Fa) formed by the bag making means (23) from the bottom side and transferring it to the fusing and sealing means (31). Bag filling machine.   The press conveyor (37) for pressing and transferring the tubular film (Fa) containing the article (W) from the upper surface side on the downstream side of the fusing sealing means (31). The horizontal bag making and filling machine according to one item.   The upper surface of the tubular film (Fa) formed by the bag making means (23) and the film polymerization edge between the downstream of the bag making means (23) and the film fusing position by the fusing seal means (31). The first guide (28) for supporting the side opposite to the side on which (f) extends and the second guide (29) for supporting the other side of the tubular film (Fa) are provided. The horizontal bag making and filling machine according to any one of the above. The article (W) is a collective product in which soft materials are laminated,
The supply means (10) includes a sandwiching conveyor (13) that compresses the article (W) with upper and lower belts and sends the article (W) to the tubular film (Fa),
The gusset forming means (44) includes a pushing piece (42, 43) for pushing the cylindrical film (Fa) from both sides to the front and rear positions in the film transfer direction across the sealing body (38) of the lateral sealing means (40). The holding piece (42a, 43a) which operates in synchronization with the pushing piece (42, 43) and presses the side surface of the article (W) accommodated in the tubular film (Fa) through the film, respectively. The horizontal bag making and filling machine according to any one of the above.

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