JP6542167B2 - Horizontal pillow packing machine - Google Patents

Description

  The present invention relates to a horizontal pillow packaging machine for producing a three-way sealed package.

  The three-way seal package is a package form in which the package film is bent to sandwich the package from above and below, and the bent portion forms one side of the flat rectangular package and seals the other three sides. The packaging machine which manufactures the three-way seal package which concerns is a strip-like packaging film by passing a strip-like packaging film to the said bag-making machine using the bag-making device which one side of the advancing direction of a film opens, for example. The package film is folded by sequentially feeding the package material into the tubularly formed packaging film using the package material supply device while forming the cylinder shape that is folded at the central portion and the one side surface is opened. The package material is sandwiched from above and below, and the one side opening packaging film is side-sealed by the side seal device disposed on the downstream side of the bag making device, and the top seal device disposed on the downstream side of the side seal device. There is one configured to seal and cut the packaging film in a direction crossing the traveling direction.

  In addition, there is one in which two three-way sealed packages are simultaneously manufactured, such as a packaging machine disclosed in Patent Document 1. In such a packaging machine, both side edges of the strip-shaped packaging film are positioned at the upper center side by passing the strip-shaped packaging film through the bag making machine, and they are brought close to each other without contact. Let them face each other. On the other hand, the package supply device disposed upstream of the bag making apparatus sequentially supplies the packages to be conveyed in two rows to the bag making apparatus. As a result, the folded back side ends of the band-shaped packaging film respectively cover the upper side of the respective packages. Then, the two side edges of each of the strip-shaped packaging films are sealed to the central film portion of the opposing packaging film, and then the sealed portions are cut to form two cylindrical packaging films in parallel. After that, two cylindrical packaging films are cut in the lateral direction to manufacture two three-way sealed packages.

Patent 4754302

  In the case of the three-way sealed package, side seal portions are formed on one of the left and right side edges in the transport direction of the cylindrical packaging film, and the packaging film is folded back on the other side. The side seal portion is usually formed at a position higher than the transport path of the packaging film and at a position about half the thickness of the package. Thus, the side seal portion is formed at an intermediate position in the height direction of the cylindrical film. When the tubular film travels along the transport path in this state, the side seal portion hangs down and comes into contact with the transport path. As a result, when a three-way sealed package is manufactured by sealing and cutting the film area without the package before and after with the top seal device in the upper and lower direction, which is asymmetric in the vertical direction, the drooping part is vertical It is not possible to hold it evenly and pressurize / heat it, and wrinkles may come off.

  In the past, the top seal portion may not be very noticeable because it is at the end of the package, and although some wrinkles were formed, it was considered to be a good product as it is There is a thing. As a result, the yield of non-defective products decreases, which causes a problem of suppressing the generation of wrinkles and the like.

  In order to solve the problems described above, the horizontal pillow packaging machine of the present invention is a cylinder in which (1) the package is sandwiched from above and below, one of the side edges in the transport direction is side sealed and the other is bent. Transport path for transporting a sheet film, a package holding belt device disposed above the delivery side of the transport path, and a downstream side of the transport path, the tubular film is sealed and cut in the width direction A package sealing belt device, comprising: an endless belt that contacts the upper side of the tubular film and prevents the packaged material in the tubular film from being lifted up; The endless belt was disposed to be inclined with respect to the transport direction of the tubular film, and the downstream side was directed to the bent side of the tubular film. The transport path corresponds to the transport path 22 and the belt conveyor 26 in the embodiment.

  As the upper film drops by its own weight, the side seal portion formed on one side of the tubular film hangs downward while moving on the transport path. In the present invention, the upper surface of the cylindrical film is in contact with the endless belt of the package holding belt device, and the upper surface of the cylindrical film is biased in the moving direction of the endless belt. And since the moving direction of the endless belt is inclined at a predetermined angle with respect to the conveying direction, the upper surface of the cylindrical film is pulled outward, and the cylindrical film is forced to twist while moving forward, and the endless belt is endless belt One side edge of the tubular film is raised in the direction of movement of the. In the present invention, since the endless belt arranged in an inclined manner is directed to the bent side of the cylindrical film, the above-mentioned raised side edge is the side edge on which the side seal portion of the cylindrical film is formed Become. Thus, the hanging side seal portion is lifted upward. As a result, if the seal and cut process in the top seal device performed later is performed, the amount of drooping on the side seal portion side decreases, so that heating and pressure are uniformly applied over the entire width direction of the cylindrical film. Control the occurrence of wrinkles and the like.

  In addition, by appropriately setting the inclination angle and the length of the endless belt, for example, the side seal portion and the side edge of the cylindrical film on which the side seal portion is formed are side sealed (for example, horizontally) It is good to return to the extended state). The distance from the carry-out end of the material restraining belt device to the top seal device may be as short as possible, and the top seal processing may be performed before the lifted side seal portion hangs down again. As described above, it is most preferable that the side seal portion is returned to the side sealed state by passing through the package holding belt device, and the top seal is performed immediately after that. For example, the side seal portion is raised Even if the side seal portion does not return to the side-sealed state or the side seal portion is slightly lowered after passing through the package restraining belt device, the countermeasure by the package restraining belt device is It is better because the generation of wrinkles and the like can be suppressed compared to the case where it is not performed.

  (2) The cylindrical films are conveyed side by side in the lateral direction on the conveying path, and the side seal portions of the cylindrical films on the left and right sides are respectively positioned on the other cylindrical film side, and the endless It is preferable that two sets of belts be provided and disposed so as to independently contact each of the left and right tubular films, and that the two sets of endless belts be disposed such that the downstream side faces outward. In this way, two packages can be manufactured simultaneously, and the number of products manufactured per unit time can be increased.

  (3) The endless belt may be rotatable in a horizontal plane, and the inclination angle with respect to the transport direction may be adjustable. In this way, when producing packages of different sizes and sizes, the amount by which the upper film surface of the cylindrical film is shifted to the bent side is adjusted, and the side edge provided with the side seal portion is returned horizontally. Because you can

  (4) It is preferable to arrange a belt conveyor which moves along the conveyance direction at least at a portion of the conveyance path facing the endless belt. In this case, the film surface on the lower side of the cylindrical film is biased in the direction along the transport direction, so that forces are applied in different directions above and below the cylindrical film, and the film surface on the upper side of the cylindrical film is It is good because it can correct the position firmly.

  (5) The package may be a drip bag. According to this invention, it is possible to manufacture the three-sided seal package of the drip bag manufactured by the conventional vertical pillow packaging machine using the horizontal pillow packaging machine while suppressing the occurrence of wrinkles.

  According to the present invention, the occurrence of wrinkles and the like in the seal portion of the three-way package can be suppressed as much as possible.

1 is a front view showing a preferred embodiment of a horizontal pillow packaging machine according to the present invention. (A) is a top view which shows an example of a to-be-packaged thing, (b) is the front view, (c) is a top view which shows an example of a package. It is a front view which shows an example of a packaging machine main body. FIG. It is a top view which shows a part of finger conveyor apparatus. It is a front view which shows an example of a to-be-packaged material conveyance supply apparatus. It is an enlarged front view which shows the part. It is a figure which shows a part of alignment device. It is a figure explaining the effect | action of a to-be-wrapped material holding | suppressing belt apparatus.

  Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings. The present invention is not limited to or interpreted as such, and various changes, modifications, and improvements can be added based on the knowledge of those skilled in the art without departing from the scope of the present invention.

  As shown in FIG. 1 and the like, the horizontal pillow packaging machine 10 of the present embodiment includes a packaging machine main body 11 and a film supply device 12 for continuously feeding a strip-like packaging film to the packaging machine main body 11; The apparatus is provided with an article transport and supply device 14 disposed upstream of the packaging machine main body 11 and supplying the article 1 to the packaging machine main body 11 at predetermined intervals.

  In the present embodiment, the package 1 is a drip bag in which the taste of a full-fledged drip can be easily consumed, and is provided with a hook-type support member. That is, as shown to Fig.2 (a), the to-be-packaged item 1 is equipped with the bag body 3 with which the powder | flour 2 of coffee was filled with the inside, and the hook member 4 attached to the side of the bag body 3. The bag 3 is made of non-woven fabric and filled with coffee powder 2 in a state where one side (the upper part in use, the left side in FIG. 2) is opened. The seal portion 3a is formed and sealed. Furthermore, the perforation 5 for opening is formed in the unsealed part along the said sealing part 3a. Moreover, when filling the powder | flour 2 of coffee in the bag 3, it supplies in the bag 3 from the said opening site | part in the state which made the opening side one side. Therefore, coffee powder 2 is relatively densely filled in the posture at the time of supply, that is, the bottom 3 b side of the bag 3 in use. As a result, as shown in FIG. 2B, the bottom 3b side is relatively thick, has a certain degree of hardness, and is relatively unlikely to be crushed. On the other hand, the thickness on the side of the perforation 5 of the bag body 3 becomes thin and the coffee powder 2 also exists in a relatively sparse state, and is crushed and deformed relatively easily when a biasing force is applied from the outside. At the time of use, the bag body is opened by cutting the perforation 5 prior to dripping, and is set in a cup using the hook member 4. As described above, the package 1 has a flat shape in which the plane is rectangular in its entire shape.

  The to-be-packaged thing 1 which concerns is sealed-stored in the flat outer bag 6 as shown to FIG. 2C, and the package body 28 is manufactured. The outer bag 6 is formed of a packaging film such as an aluminum vapor deposition film, one side of the rectangular shape is folded, and the remaining three sides are sealed (side seal portion 6a, top seal portion 6b) for sealing.

  Although this type of drip bag is conventionally packaged using a three-way seal package, it has been manufactured using a vertical pillow packaging machine. However, in the vertical pillow packaging machine, there is a problem that the number of products manufactured per unit time can not be increased. Therefore, instead of the vertical pillow packaging machine, packaging processing for the drip bag is performed using a horizontal pillow packaging machine that can cope with the increase in processing speed. And in order to manufacture the package of the same size and shape as the package manufactured with the conventional vertical pillow packaging machine, in this embodiment, the cut dimension in the horizontal pillow packaging machine, that is, the length t1 of the outer bag 6 Also, there is not much difference in the length t2 of the package 1 (drip bag), and considering the top seal portion 6b, there is no room for the dimensions in the front-rear direction and the transport direction at the time of wrapping paper processing.

  The film supply device 12 links the output of a drive motor (a motor capable of controlling the speed such as a servomotor) (not shown) to the original fabric roll 16 in which a strip-shaped film 15 such as an aluminum vapor deposition film is wound in a roll. It supplies to the packaging machine main body 11 at a fixed speed, controlling the rotational speed of the film roll 16 suitably. Further, various rollers 17 are disposed at predetermined positions from the original fabric roll 16 to the packaging machine main body 11, and the belt-like film 15 delivered from the original fabric roll 16 is stretched around the roller 17 to provide a predetermined path. Are guided to the packaging machine main body 11. In the present invention, it is not necessary to link the drive motor to the original fabric roll 16 necessarily, and a feed roller may be provided on the transport path of the packaging film and pulled out.

  Although the specific configuration will be described later, the package conveying and feeding apparatus 14 conveys the above-mentioned packaged products 1 in a state in which the above-mentioned packaged products 1 are arranged in two horizontal rows, and the two packaged products 1 arranged side by side At the same time, the sheet is supplied to the packaging machine body 11 of the next stage.

  The packaging machine main body 11 is equipped with the bag making device 20 which sets up the strip | belt-shaped film 15 supplied to the upstream side cylindrically. By passing the bag-making apparatus 20, the belt-like film 15 is lifted so that both side ends are curved upward along the bag-making apparatus, and the bag-like film 15 is made into a bag. At this time, the side edges 15a of the belt-like film 15 are respectively positioned on the upper center side and set so as to be close to each other without contact (see FIG. 4). That is, in the case of an ordinary pillow packaging machine, the side edges of the strip-shaped film 15 formed into a tubular shape overlap sealable surfaces with each other, but in the present embodiment, the side edges 15a are cylindrical It opposes to the center part of the strip-shaped film 15 made into a bag shape. Moreover, the to-be-packaged material conveyance supply apparatus 14 supplies the to-be-packaged goods 1 conveyed in 2 rows to the bag making machine 20 one by one. As a result, the folded back side ends of the strip film 15 each cover the upper side of each package 1.

  The conveyance path 22 which comprises the conveyance surface of the cylindrical film 21 which includes the to-be-packaged goods 1 at the downstream of the bag making apparatus 20 is arrange | positioned. The pinch roller 23, the side seal device 24, and the vertical cutter device 25 are disposed at an appropriate position in the center of the transport path 22 from the upstream side. The pinch roller 23 is composed of a pair of upper and lower rollers, and sandwiches the both side edges 15a of the tubular film 15 formed into a tubular shape and the central portion of the ribbon film 15 opposed thereto with a predetermined pressure from above and below A conveying force is applied to the formed band-shaped film 15.

  The side seal device 24 is located on the upper side of the strip-shaped film 15 formed into a tubular shape, and the lower side of the single large disk-shaped side sealer 24 a and the strip-shaped film 15 formed into a tubular shape. , And consists of two small diameter disk-like holding rollers 24b (disposed in front and back). With the side sealer 24a and the pressing roller 24b arranged at the top and bottom, the central edge portion of the both side edges 15a of the strip-shaped film 15 made into a tubular bag and the strip-shaped film 15 opposed thereto are sandwiched from above and below with a predetermined pressure. And heat at a predetermined temperature. Thus, the side edges 15a are heat-sealed to the opposing film portions, and the sealed portions become the side seal portions 6a. The height position at which the film is held between the side sealer 24 a and the pressing roller 24 b is a position higher than the transport path 22 and about half the thickness of the package 1. Thus, the side seal portion 6 a is formed at an intermediate position in the height direction of the cylindrical film 21. Further, by sealing the both side edges 15a with the side seal portion 6a, two cylindrical films 21 connected to the left and right are formed from the band-like film 15 which is bag-shaped in one large cylindrical shape. become. And the to-be-packaged thing 1 is included in these two cylindrical films 21, respectively.

  The vertical cutter device 25 cuts the central portion of the side seal portion 6a, that is, between the two cylindrical films 21 connected to the left and right, and a slit cutter 25a located on the upper side of the cylindrical film 21; It comprises the receiving blade 25b located on the lower side of the cylindrical film 21. The side seal portion 6a is sandwiched from above and below with a predetermined pressure by the slit cutter 25a and the receiving blade 25b which are arranged vertically. Thereby, the side seal part 6a is cut along the advancing direction of a film, and the cylindrical film 21 on either side is isolate | separated.

  The left and right tubular films 21 move forward on the transport path 22 in a separated state. With this movement, for example, as shown in FIG. 9A, the side seal portion 6a hangs downward and comes into contact with the conveyance path 22.

  On the downstream side of the vertical cutter device 25, a belt conveyor 26 for supporting and conveying the two separated cylindrical films 21 and an article holding belt device 30 are disposed above the belt conveyor 26, and further, A top seal device 27 and a carry-out conveyor 29 are disposed downstream of them.

  The material holding belt device 30 is disposed immediately upstream of the top seal device 27. The material holding belt device 30 in the tubular film 21 is prevented from being lifted upward, and is conveyed while maintaining the horizontal state. I am able to do it. The wrapped product holding belt device 30 basically has a configuration in which an endless belt 62 is stretched around pulleys 61 disposed in the front and rear. Then, two sets of pulleys 61 and endless belts 62 are provided, and the separated left and right tubular films 21 are independently suppressed from above. The left and right endless belts 62 are inclined at a predetermined angle with respect to the transport direction of the tubular film 21 so that the downstream side faces outward. As a result, the distance between the left and right endless belts 62 increases toward the downstream side, and the endless belts 62 are arranged in a reverse V shape along the transport direction in the plan view.

  On the other hand, as described above, the belt conveyor 26 is disposed in parallel with the transport direction. As a result, the package 1 conveyed on the belt conveyor 26 has its lower surface in contact with the belt conveyor 26 and is urged in a direction parallel to the conveyance direction, and the upper surface of the package 1 is the package holding belt device 30. In parallel to the rotational movement direction of the endless belt 62, the belt is biased toward the front diagonally outer side (the left side edge of the left cylindrical film) with respect to the transport direction. Thereby, the film site | part of the upper surface side of the bag 3 which comprises the to-be-packaged goods 1 is pulled by the outer side of a conveyance direction. Then, the side seal portion 6a is pulled upward, and, for example, as shown in FIG. 9 (b), the side seal portion 6a returns to a half position in the thickness direction of the package 1 and becomes horizontal. It becomes a target posture, and reaches the top seal device 27 of the next stage in the said posture.

  Further, although not shown, in the present embodiment, the same drive source as the belt conveyor 26 is used as a drive source of the package holding belt device 30. That is, the output of the servomotor or other drive motor is transmitted to the object holding belt device 30 and the belt conveyor 26 by the power transmission mechanism including the power transmission belt (chain). As a result, it is possible to easily rotate and move the material holding belt device 30 and the belt conveyor 26 at the same speed, and it is possible to stably convey the tubular film 21 in a state of being sandwiched from above and below.

  Furthermore, in the present embodiment, the inclination angle of the endless belt 62 can be adjusted. The adjustment of the inclination angle is, for example, forward and reverse rotation within a predetermined angle range with the center position in the longitudinal direction of the endless belt 62 as the rotation center, for example, the downstream side is outside from the reference posture whose inclination angle is 0 degrees To change to the inclined posture to open, and to gradually increase the inclination angle of the inclined posture. As described above, even if the inclination angle is changed, the power transmission belt accepts the displacement of the angle because the maximum angle is several degrees, and the output of the drive motor is transmitted to the package holding belt device 30. When the inclination angle is adjustable, the center of rotation is not limited to the center in the longitudinal direction as in the present embodiment, and may be set at an arbitrary position.

  The top seal device 27 seals and cuts the cylindrical film 21 in a direction perpendicular to the traveling direction, that is, in a direction transverse to the traveling direction. The film portion to be sealed and cut is a predetermined position between the front and back packaged objects 1, and the top seal portion 6b is formed on the portion. Thereby, by passing through the top seal device 27, the leading portion of the cylindrical film 21 is separated from the subsequent portion, and the package 28 is manufactured. The manufactured package 28 is carried out by the carry-out conveyor 29. Further, since two cylindrical films 21 on the left and right are supplied to the top seal device 27, two packages 28 are manufactured.

  And in this embodiment, since the side seal part 6a of the package 1 is horizontal by the package holding belt device 30, and a cylindrical film becomes an object form by the upper and lower sides, it can seal beautifully, and a top The seal portion 6b can also form a clean top seal portion 6b without corrugation or wrinkle formation.

  The package conveying and feeding device 14 for feeding the two packages 1 at a desired timing with respect to the packaging machine main body 11 includes a finger conveyor device 31 and a belt conveyor device disposed downstream of the finger conveyor device 31. 32 and an alignment device 33 disposed above the belt conveyor device 32. That is, in the present embodiment, as the form of the drip bag which is the package 1, as shown in FIG. 2, the type in which the hook member 4 made of cardboard is attached as the supporting member to the side of the non-woven bag It is used. When the drip bag is conveyed upward from the upper side where the perforation 5 for opening is formed, the bag body 3 is bent at the perforation 5 when pressed by the finger, and positional deviation with respect to the packaging film occurs. As a result, it causes biting at the time of sealing in the packaging machine main body 11. So, in this embodiment, while arrange | positioning the belt conveyor apparatus 32 on the downstream side of the finger conveyor apparatus 31, and arrange | positioning the alignment apparatus 33 above that, it was made to prevent the problem which generate | occur | produces.

  The finger conveyor device 31 includes sprockets 34 disposed at predetermined positions in the front and rear direction, an endless chain 35 wound around the plurality of sprockets 34, and pushing fingers 36 attached to the endless chain 35 at regular intervals. . The transport path 38 is disposed above the endless chain 35, and the tip end side of the pushing finger 36 advances forward along the transport path 38 as the endless chain 35 rotates in a state of projecting above the transport path 38. . Moreover, the to-be-packaged goods 1 are each supplied on the conveyance path 38 between the pushing feed fingers 36 of back and front by the to-be-packaged material supply apparatus which is not shown in figure. At this time, the package 1 is set on the transport path 38 with the perforations 5 directed upstream.

  Thereby, as shown in FIG. 5, the package 1 placed on the transport path 38 is provided with the seal portion 3a which is the peripheral edge on the perforation 5 side on the pushing finger 36 located on the rear side in the transport direction. As the pushing finger 36 is moved forward, the package 1 is also pushed forward, and is moved forward in two rows with the bottom 3b of the bag 3 facing the downstream side.

  Further, as shown in an enlarged manner in FIG. 6, the downstream end of the transport path 38 is located near the upstream end of the belt conveyor device 32 of the next stage. As a result, when the package 1 pushed by the pushing finger 36 reaches the downstream carry-out end of the finger conveyor device 31, the tip end side moves to the belt conveyor 32 side so as to be pushed out by the pushing finger 36. The conveying force from the conveyor device 32 side is also received. Then, when the pushing finger 36 reaches the downstream end of the finger conveyor device 31, it gradually descends and separates from the package 1. At the time of separation, the package 1 is transferred to the belt conveyor device 32, and moves forward by receiving the transport force from the belt conveyor device 32.

  The belt conveyor device 32 includes pulleys 40 provided at appropriate positions in the front and rear direction, and an endless belt 41 wound around the pulleys 40. The drip bag, which is the material to be packaged 1, is conveyed with the endless belt 41 rotating, with the perforation 5 for opening being directed upstream. Also, the transport speed of the belt conveyor device 32 is set approximately equal to or slightly higher than the transport speed of the film in the packaging machine main body 11 in the latter stage (the moving speed of the strip film 15 supplied to the bag making machine 20). ing. For example, when the transport speed of the film and the transport speed of the package 1 in the belt conveyor 32 are equalized, the package 1 is transferred from the belt conveyor 32 to the strip-shaped film 15 moving in the bag making machine 20. It is preferable that the process can be smoothly performed without applying stress to the package 1, but in the present embodiment, by making the transport speed in the belt conveyor device 32 slightly faster, the package 1 can be more reliably transferred to the packaging machine main body 11 side. I tried to deliver.

  The alignment device 33 includes sprockets 44 provided at predetermined positions before and after the upper space of the belt conveyor device 32, an endless chain 45 stretched over the sprockets 44, and blade members 46 attached to the endless chain 45 at regular intervals. Equipped with As shown in FIG. 8, the endless chains 45 are respectively disposed on the left and right sides in the transport direction of the package 1 and connect the ends of the base bar 50 so as to extend over the pair of endless chains 45. The base bar 50 is an elongated plate, and connects the blade member 46 to the base bar 50 via the L-shaped plate 51. The blade member 46 has a flat plate shape, and in a section moving along the transport direction of the package 1, the blade member 46 is positioned on a vertical surface and takes a hanging posture.

  The left and right ends of the lower end of the blade member 46 are formed with projecting pieces 46a that project downward, and a shallow bottom recess 46b is formed between the left and right projecting pieces 46a. The width of the recess 46 b is wider than the width of the endless belt 41. Then, in a section where the blade member 46 moves along the endless belt 41, the endless belt 41 enters the recess 46b, and the left and right projecting pieces 46a are lower than the belt surface of the endless belt 41, that is, the conveyance surface of the package 1 Move forward while maintaining the position.

Further, at the central portion of the lower end of the blade member 46, a recessed notch portion 46c is provided upward. The notch 46 c is for avoiding interference with the pushing finger 36 of the finger conveyor device 31. That is, for example, when the pushing finger 36 of the finger conveyor device 31 delivers the package 1 to the belt conveyor device 32,
Even if the wing member 46 overlaps the pushing finger 36 back and forth, the pushing finger 36 is located in the notch 46 c of the wing member 46 so as not to be in contact with it.

  Furthermore, the moving speed of the blade member 46 in the alignment device 33 is slower than the transfer speed of the package 1 in the belt conveyor device 32. Thereby, as shown in FIG. 6, immediately after the packaged product 1 is delivered onto the belt conveyor device 32, it is separated from the front blade member 46 by a predetermined distance, and as the belt conveyor device 32 is transported When the distance to the front blade member 46 approaches and reaches near the delivery side of the belt conveyor device 32, the front end (the bottom 3b side of the bag 3 of the drip bag in the transport direction) of the packaged object 1 is the front blade member 46. Contact In the state of being in contact with the blade member 46, the package 1 is transported at the moving speed of the blade member 46.

  As shown in FIG. 7, when the wing member 46 moves upward and separates from the package 1, the package 1 moves at the transport speed of the belt conveyor device 32, and the packaging machine main body 11 (bag making machine 20) Supplied to Since the blade member 46 ascends and separates from the package 1 as the endless chain 45 rotates, the position (reference position) at which the blade member 46 separates from the package 1 is determined. The positional relationship is also uniquely determined. Therefore, the package 1 at the position where the wing members 46 are separated, for example, the distance to the bag making device 20 is constant, and it moves from the position at the transfer speed of the belt conveyor device 32 and reaches the bag making device 20, The film is supplied in a band film 15. This is the same for the packages 1 sequentially transported forward and backward.

  Therefore, once the package 1 is in contact with the wing member 46, the package 1 is aligned on the front basis and supplied to the packaging machine main body 11 at the same timing after being aligned. Therefore, by adjusting the operation timing of the top seal device 27 in the packaging machine main body 11, the position of the belt-like film 15 supplied to the packaging machine main body 11, etc. to the position and timing that the wing member 46 separates from the package 1 Thus, the package 28 can be manufactured without the package 1 being misaligned or the like and without the package 1 being caught.

  In particular, in the present embodiment, since the bottom 3 b side of the bag 3 filled with coffee powder 2 and having a stable shape is brought into contact with the wing member 46, when the package 1 contacts the wing member 46. It is hard to deform the package 1 and it is hard to occur position shift by the modification.

  Furthermore, in the present embodiment, the protrusion 46a is positioned below the belt surface of the endless belt 41, whereby the package 1 can be reliably brought into contact with the blade member 46 and positioned. That is, the width in the transport direction of the package 1 is made wider than the belt width of the endless belt 41. Even if a gap is generated between the recess 46 b and the endless belt 41, the package 1 contacts at least the left and right end portions of the blade member 46 and is positioned.

  Furthermore, in the present embodiment, the time during which the package 1 is in contact with the blade member 46 is shortened, positioning is performed instantaneously, and the conveyance by the belt conveyor device 32 is returned. In order to do this, the transport speed of the belt conveyor device 32 and the speed difference of the moving speed of the blade members 46 are appropriately adjusted, and the belt conveyor device 32 is transported immediately before the blade members 46 separate. Package 1 catches the blade member 46 so that the tip is in contact.

  Furthermore, in the present embodiment, the drive motor of the belt conveyor device 32 is provided separately from the alignment motor 33 and the drive motor on the packaging machine main body 11 side, and operates based on an independent drive source. This is because, as described above, fine adjustment is required for adjusting the speed difference, and mechanical adjustment such as gear ratio becomes complicated, so it is easy to make an optimal setting using another drive motor. There is.

  Furthermore, the position at which the blade member 46 separates from the package 1 is close to the bag making device 20, that is, near the delivery side of the belt conveyor device 32, and soon after separation, the package 1 forms the bag It is good to be supplied in 20.

  Although the conveyance speed by the belt conveyor device 32 is made faster than the movement speed of the blade members 46, preferably, the speed difference is small. By reducing the speed difference, it is possible to reduce the stress applied to the package 1 when the package 1 contacts the blade member 46. However, if the speed difference is small, the moving distance of the belt conveyor device 32 needs to be increased, which causes the apparatus to be large, and the speed difference is appropriately set in consideration of that.

  Furthermore, in the present embodiment, a stopper member 53 that protrudes rearward is provided below the rear surface of the blade member 46. The stopper member 53 is formed of a thick L-shaped member, and the lower end of the stopper member 53 protrudes rearward. And the lower surface of the projected portion becomes the first locking surface 53a, and the rear surface becomes the second locking surface 53b.

  The first locking surface 53 a forms a fixed gap with the endless belt belt surface of the belt conveyor device 32, and in the state where the tip of the packaged object 1 is in contact with the blade member 46, The tip end, that is, the bottom 3b of the bag 3 is located in the gap. As a result, when the bottom 3b of the bag 3 is intended to be lifted upward, the bottom 3b contacts the first locking surface 53a to prevent the lifting.

  The second locking surface 53b allows contact with the hook member 4 of the package 1 moved forward. That is, for example, the conveying force from the belt conveyor device 32 is large, and the tip of the article 1 is moved forward relative to the wing member 46 even after the tip of the article 1 contacts the wing member 46, and the tip of the article 1 is crushed In this case, the hook member 4 contacts the second locking surface 53b to inhibit further relative forward movement. Thereby, it is suppressed as much as possible that the bottom part 3b side of the bag 3 collapses.

  In the embodiment described above, the package 1 is transported with the bottom 3b side of the bag body 3 on the front side, but the transport posture of the package 1 is reversed back and forth and the side on which the perforations 5 are formed is the transport You may do it.

  In the embodiment described above, the package is a drip bag of coffee, the hook member 4 is attached to the side surface of the bag 3, and the hook member 4 is not positioned at the periphery of the bag 3 in the transport state. In the existing type, when the peripheral edge is pushed inward, the pressed portion is likely to be dented or deformed, but the present invention is not limited to this, and the package is a drip bag of other types. It may be an item other than the drip bag. However, when it is pushed from the back, it works effectively for those with a structure that is easily deformed.

  According to the present embodiment, while suppressing the occurrence of wrinkles and the like in the seal portion, even if the dimensional difference between the packaged product and the bag body is small without biting, manufacturing at high speed using a horizontal pillow packaging machine The same packaging form as in the case of using a vertical pillow packaging machine, which is a conventional packaging method for drip bags, can be employed.

  In the embodiment described above, the package 1 is a drip bag, but the present invention is not limited to this and can be applied to various articles. In the embodiment described above, the horizontal pillow packaging machine of the type in which the left and right separate cylindrical films are formed and two packages are manufactured is described. However, the horizontal pillow in which one normal package is manufactured It is applicable also to a packaging machine. In this case, the material holding belt device 30 is inclined and disposed such that the downstream end of the endless belt 62 is located on the side where the side seal portion is not formed.

  While the various aspects of the invention have been described above using embodiments and variants, these embodiments and descriptions have not been made for the purpose of limiting the scope of the invention, but rather to understand the invention. It should be added that it was provided to help. The scope of the present invention is not limited to the configurations and processes explicitly described in the specification, and includes within its scope combinations of various aspects of the present invention disclosed herein. Among the present inventions, the configuration to be patented is specified in the appended claims, but the present treatment is disclosed in the present specification even if the configuration is not specified in the claims. In the future, I would like to say that there is a possibility of claiming a configuration in the future.

DESCRIPTION OF SYMBOLS 1 Packaged item 10 Horizontal pillow packaging machine 11 Packaging machine main body 12 Film supply apparatus 14 Packaged article conveyance supply apparatus 21 Tubular film 27 Top seal apparatus 30 Packaged article holding belt apparatus 31 Finger conveyor apparatus 32 Belt conveyor apparatus 33 Alignment Device 36 Pushing finger 41 endless belt 46 blade member 62 endless belt

Claims (5)

A transport path for transporting the tubular film in which the package is sandwiched from above and below and one of the side edges in the transport direction is side-sealed and the other is bent;
An article restraining belt device disposed above the delivery side of the transport path;
It has a top seal device which is disposed on the downstream side of the transport path and seals and cuts the tubular film in the width direction.
The package pressing belt device includes an endless belt that contacts the upper side of the tubular film and suppresses lifting of the package in the tubular film upward.
The horizontal pillow packaging machine according to claim 1, wherein the endless belt is disposed to be inclined with respect to the transport direction of the tubular film, and the downstream side is directed to the bent side of the tubular film. The cylindrical films are conveyed side by side in parallel on the conveyance path,
The side seal portions of the left and right cylindrical films are positioned on the other cylindrical film side,
Two sets of the endless belts are provided and arranged so as to independently contact each of the left and right tubular films,
The horizontal pillow packaging machine according to claim 1, wherein the two sets of the endless belts are disposed such that the downstream side faces outward.   The horizontal pillow packaging machine according to claim 1, wherein the endless belt is rotatable in a horizontal plane, and an inclination angle with respect to the transport direction is adjustable.   The horizontal pillow packaging machine according to any one of claims 1 to 3, wherein at least a portion of the transport path facing the endless belt is arranged with a belt conveyor that moves along the transport direction.   The horizontal pillow packaging machine according to any one of claims 1 to 4, wherein the material to be packaged is a drip bag.