JP6646594B2 - Tape application device and horizontal pillow packaging machine - Google Patents

Description

  The present invention relates to a tape sticking device and a horizontal pillow wrapping machine, and more particularly to a device for sticking a tape to a packaging film being conveyed in a direction intersecting a traveling direction.

  As one form of a package, there is a package in which an opening tape is attached to a bag formed by wrapping an object to be packaged with a packaging film. An example of a package provided with this kind of opening tape is disclosed in, for example, FIG. The package according to Patent Literature 1 is intended to facilitate opening and resealing, in which an opening tape is stuck so as to cover a cut provided in advance in a packaging film, and the opening tape is used at the time of opening. Is peeled off to expose the cut, and the contents are taken out. When the opening tape is peeled off, a part of the adhesive remains on the surface of the packaging film. Therefore, when the packaging film is folded, it can be resealed by the adhesive force of the adhesive.

  As a packaging machine for manufacturing a packaging body provided with such an opening tape, there is a vertical pillow packaging machine provided with a tape sticking device disclosed in Patent Document 1. In the tape affixing device disclosed in Patent Document 1, as shown in FIG. 2 and the like, the opening tape is clamped from a state wound in a roll shape by a clamp in a direction orthogonal to the conveying direction of the band-shaped packaging film. The opening tape is pulled out so as to extend above the packaging film so as to overlap with the packaging film, and the opening tape in the pulled-out state is cut into a predetermined length, and is attached to the packaging film.

  The opening tape affixed by the tape affixing device in this manner is transported integrally with the packaging film and supplied to the vertical pillow packaging machine body. The vertical pillow packaging machine body uses the supplied packaging film with an opening tape to wrap the packaged object and produce a package.

  As an apparatus for attaching such an opening tape, for example, there is a tape attaching apparatus disclosed in Patent Document 2. This tape adhering device employs a configuration in which an opening tape wound in a roll shape is pulled out with an suction belt, cut with a cutter, and then thermally welded to a film with a hot plate.

Patent No. 3592072 JP-A-8-230844

  In any of the above-described conventional apparatuses, only when the packaging film is temporarily stopped, the opening tape can be brought into contact with the packaging film to perform the process of sticking. Therefore, it is necessary to convey the packaging film intermittently, and the corresponding packaging machine is limited to the one driven intermittently, for example, the vertical pillow packaging machine disclosed in Patent Document 1. Therefore, for example, it cannot be applied to an apparatus that performs packaging processing while continuously transporting a packaging film, such as a horizontal pillow packaging machine, cannot respond to high speed, and has a problem of poor production efficiency.

  In order to solve the above-mentioned problems, a tape affixing device according to the present invention includes: (1) an opening tape provided on a packaging film transport path in a packaging machine, which is continuously transported without interruption. A tape affixing device for affixing, a means for paying out a band-shaped tape, a cutter means for cutting the fed-out band-shaped tape, and the opening tape cut and formed separately from the band-shaped tape. A transport belt device that transports in a sucked state, a suction drum disposed above an unloading side of the transport belt device, and a receiving drum disposed to face the suction drum with the packaging film interposed therebetween; The suction drum and the receiving drum are arranged so that the rotation axes of the suction drum and the receiving drum extend in a direction intersecting the conveying direction of the packaging film. The suction unit has a suction unit, and in a state in which the suction unit is positioned on the unloading side of the transport belt device and is temporarily stopped, the opening tape on the transport belt device is delivered, and The suction drum is rotated in a state where the delivered opening tape is sucked and held, so that the sucked and held opening tape is brought into contact with the packaging film. The packaging film is sandwiched and pressed between, and at least one of the suction drum and the receiving drum has a heating means for heating the packaging film in the sandwiched state.

  In the embodiment, the means for feeding the belt-shaped tape corresponds to the free roller 37, the course changing roller 38, the feed roller 39, and the like. In the embodiment, the suction section corresponds to the suction table section 72, the front end surface 72a, and the like. The receiving drum corresponds to the heater drum 46 in the embodiment. The heating means corresponds to a sealer 77 provided on the heater drum 46 in the embodiment. In the embodiment, the sealer 77 serving as the heating means is provided on the heater drum 46 serving as the receiving drum. However, the present invention is not limited to this, and the heating means is provided on the suction drum side as described in a modified example. May be. In this case, the heating means may be mounted on both the receiving drum and the suction drum, or may be provided only on the suction drum side. The number of the adsorbing sections may be set arbitrarily, and it is preferable to set a plurality of the adsorbing sections as in the embodiment.

  In the present invention, the fed strip-shaped tape is cut by the cutter means at predetermined lengths. As a result, cut pieces of a predetermined length are sequentially formed from the head of the belt-shaped tape. This cut piece becomes an opening tape to be attached to the packaging film. The opening tape is transported to a position below the suction drum by the transport belt device. During this conveyance, the opening tape is adsorbed by the conveyance belt device, so that it is reliably conveyed to a desired position in a stable posture and state, and faces the adsorption section. Next, the opening tape is delivered to the opposing suction unit, and is held by the suction unit. For this delivery, for example, a mechanism that assists delivery may be used, such as an assist device described in (2) below, but such a mechanism is not necessarily required. For example, the suction unit may be opened on the conveyor belt device. The opening tape may be adsorbed to the adsorbing portion by suction while the suction tape is being brought close to the tape, and the suction of the conveyor belt device is released, and various methods may be employed. The delivery of the opening tape is performed when the rotation of the suction drum / suction unit is temporarily stopped, so that the opening tape can be smoothly and reliably performed. The opening tape sucked and held by the suction unit moves integrally with the revolving movement of the suction unit accompanying the rotation of the suction drum, and comes into contact with the packaging film when rotated by a predetermined angle. In accordance with the contact timing, the packaging film and the unsealing tape are sandwiched between the receiving drum and the suction unit, and are pressed and heated by the heating means. As a result, the opening tape is heat-welded to the packaging film and attached. Further, when the opening tape is brought into contact with the packaging film, the opening tape is rotated and moved. Accordingly, the opening tape can be attached without stopping the packaging film.

  (2) It is preferable that an assist device that lifts the opening tape on the transport belt device be provided on the unloading side of the transport belt device. In this way, the opening tape on the carry-out side is lifted upward by the assist device, separated from the belt surface of the transport belt device, and can be brought close to or in contact with the upper suction portion, so that delivery can be performed smoothly. good. More preferably, if the opening tape is lifted until it comes into contact with the suction section, the delivery can be performed more reliably.

  (3) The suction unit has a plurality of suction units along a circumferential direction of the suction drum, and one of the plurality of suction units is located on the unloading side of the transport belt device and is temporarily stopped. It is good to constitute so that the adsorption | suction part of this may not contact the said packaging film. In this case, since a plurality of suction units are provided on the suction drum, when the transfer to one suction unit is completed, the suction drum rotates and the next suction unit stands by. By providing a plurality of suction portions, delivery of the opening tape to the suction portions and attachment to the packaging film can be performed efficiently and smoothly. Furthermore, when the suction drum is temporarily stopped and the opening tape is being delivered to the suction section, the other suction sections are not in contact with the packaging film. However, it is preferable because the packaging film is not damaged or stressed.

  (4) The number of the suction portions may be an odd number, and the suction portions may receive the opening tape at a lowermost position, and may be attached to the packaging film at a topmost portion. In this way, while one suction unit is delivering the opening tape at the lowest position, none of the suction units is located at the top, so even if the packaging film is continuously transported, it will be temporarily lost. The stopped suction unit does not contact and does not hinder the transport of the packaging film. While the suction unit is at the top, neither suction unit is at the lowest position, so there is no need to temporarily stop the suction drum. Therefore, for example, in a section in which the packaging film moves in the horizontal direction, the attaching process can be performed without stopping the transport of the film.

  (5) The heating means is a sealer provided on a side surface of the receiving drum along a circumferential direction, and equalizes the number of the adsorbing sections and the number of the sealers to be installed. It is good to rotate intermittently synchronously. In this case, the rotation of the suction drum and the receiving drum can be easily controlled. Also, in accordance with the timing at which the opening tape held by the suction portion contacts the packaging film, the sealer of the receiving drum contacts a predetermined portion of the packaging film, and the sealing film and the suction portion sandwich the packaging film and the opening tape. Press and heat with.

  (6) The strip-shaped tape is a tape material with a heat-welding adhesive, and the opening tape may be stuck so as to cover the cuts provided in the packaging film. This is preferable because it can be preferably applied to the production of a package that can be resealed by the adhesive force of the adhesive after opening.

  (7) A horizontal pillow wrapping machine according to the present invention includes a wrapping machine main body that wraps an object to be wrapped with a wrapping film, and a film supply device that continuously supplies the band-shaped wrapping film to the wrapping machine main body. A packaged object transport / supply device that is arranged on the upstream side of the packaging machine body and supplies the packaged object to the packaging machine body; and the tape attaching device according to any one of (1) to (6). It is preferable that the tape attaching device be configured to attach the opening tape to the packaging film being conveyed by the film supply device. There are various types of packages manufactured by the packaging machine body, such as a type in which a sealing portion that seals both side edges of a packaging film is located at the center of the package, and a three-side seal type in which a sealing portion is located at a side edge of the package. ADVANTAGE OF THE INVENTION According to this invention, a packaging film is continuously conveyed without intermittent, and in the horizontal pillow packaging machine which performs a packaging process, the opening tape can be stuck in the direction which intersects with the conveyance direction of a packaging film. . Therefore, it is possible to manufacture the package with the opening tape with high production efficiency.

  ADVANTAGE OF THE INVENTION According to this invention, since the tape for opening can be stuck on the packaging film which is continuously fed, the packaging with the opening tape with good production efficiency can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows one suitable embodiment of the tape sticking apparatus and horizontal pillow packaging machine which concern on this invention. It is the top view. It is the side view. It is a perspective view (the 1) showing a tape pasting device. It is a perspective view (the 2) which shows a tape sticking apparatus. It is the front view. It is the top view. It is the side view.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not construed as being limited thereto, and various changes, modifications, and improvements can be made based on the knowledge of those skilled in the art without departing from the scope of the present invention.

  1 to 3 show an overall view of a preferred embodiment of a horizontal pillow packaging machine according to the present invention. The horizontal pillow packaging machine is provided with a packaging machine main body 1, a film supply device 2 for continuously supplying a band-shaped packaging film 5 to the packaging machine main body 1, and an upstream side of the packaging machine main body 1, and its packaging. And a package transporting / supplying device 4 for supplying packages to the machine body 1 at predetermined intervals.

  The film supply device 2 supports a material roll 6 on which a belt-shaped packaging film 5 is wound in a roll shape, and conveys the packaging film 5 continuously fed from the material roll 6 on a predetermined locus, at a constant speed. And has a function of supplying to the packaging machine body 1. Specifically, the rotation support shaft 11 on which the raw roll 6 is mounted is cantilevered on a bearing provided on the rear box 10 disposed above the upstream end of the packaging machine main body 1. Two rotation support shafts 11 are provided before and after at a predetermined interval. When the packaging film 5 unwound from the web roll 6 attached to one of the rotation support shafts 11 (the right side in FIG. 1) is supplied to the packaging machine main body 1 and the supply of the packaging film 5 from the web roll 6 is completed. The switching to the supply of the packaging film 5 from the material roll 6 mounted on the other rotation support shaft 11 (the left side in FIG. 1) is alternately repeated.

  The rotation support shaft 11 is linked to a drive motor (not shown) (for example, a speed controllable motor such as a servo motor) via an endless chain or other power transmission mechanism, and by appropriately controlling the rotation speed of the drive motor, The packaging film 5 is configured to be continuously supplied to the packaging machine main body 1 at a constant speed. In addition, various rollers 12 are arranged at predetermined positions from the material roll 6 to the packaging machine main body 1, and the packaging film 5 sent out from the material roll 6 is passed over the rollers 12 to form a predetermined path. Through the packaging machine body 1. In the present invention, it is not always necessary to link a drive motor to the rotation support shaft 11, and a feed roller may be provided on the transport path of the packaging film 5 and pulled out.

  The packaged article transporting / supplying device 4 includes, for example, sprockets arranged in front and back, an endless chain wrapped around the sprocket, and a plurality of pushing fingers attached to the endless chain at a predetermined pitch. Thus, when the pushing finger abuts against the rear surface of the packaged object, the packaged object also moves forward on the transport surface 4a with the movement of the pushing finger.

  The packaging machine body 1 includes a bag-making device 15 for forming the supplied packaging film 5 into a cylindrical shape, a center sealing device 16 disposed downstream of the bag-making device 15, and a downstream side of the center sealing device 16. And a carry-out conveyor 18 and the like arranged downstream of the top seal device 17. The bag-making device 15 makes the two side edges of the packaging film 5 contact (polymerize) by passing the band-shaped packaging film 5 continuously supplied from the film supply device 2 and forms the bag into a cylindrical shape. Is what you do. The packaged articles sequentially supplied from the packaged article transporting / supplying device 4 to the packaging machine body 1 are inserted into the bag making device 15. Thereby, the articles to be packaged supplied to the bag making device 15 are arranged at predetermined intervals in the packaging film 5 to be formed into a tubular shape, and are conveyed in the packaging machine main body 1 together with the packaging film 5.

  The center sealing device 16 seals both side edges of the superposed packaging film 5. The center seal device 16 includes, for example, a pair of right and left sealers, and heat seals by sandwiching the overlapped portions of both side edges of the packaging film 5 with the pair of sealers and applying pressure and heat.

  The top sealing device 17 seals and cuts the packaging film 5 in a direction perpendicular to the traveling direction of the packaging film 5 made into a cylindrical shape, that is, in a direction crossing the packaging film 5. The film portion to be sealed / cut is a predetermined position between the front and rear packages. As a result, by passing through the top seal device 17, the leading portion of the tubular packaging film 5 is separated from the subsequent portion, and a package is manufactured. Then, the manufactured package is transported by the unloading conveyor 18.

  The horizontal pillow packaging machine of the present embodiment is for manufacturing a package in which an opening tape is attached to a predetermined position of a packaging film. The opening tape is affixed so as to cover the cut formed at a predetermined position of the packaging film. When the opening tape is peeled, the packaged object can be taken out from the cut. Furthermore, when the opening tape is peeled off from the packaging film at the time of opening, a part of the adhesive of the opening tape remains on the surface of the packaging film, and when the packaging film is folded, it can be resealed due to the adhesive force of the remaining adhesive. It has functions that can be used. In order to manufacture such a simple resealable package, the horizontal pillow packaging machine of the present embodiment includes a tape sticking device 20 described below.

  The tape affixing device 20 is mounted on the film supply device 2, forms a cut at a predetermined position of the packaging film 5 continuously conveyed by the film supply device 2, and opens the tape so as to cover the formed cut. The processing is performed in a state where the packaging film 5 is continuously conveyed without intermittent operation.

  Describing along the transport path of the packaging film 5, first, the tape attaching device 20 includes a cutter device 21 that forms a cut 5 a in the width direction orthogonal to the transport direction of the packaging film 5. The cutter device 21 has a configuration in which an upper cutter portion 23 and a lower cutter portion 24 are attached to a pair of first rotating shafts 22 that are vertically arranged opposite to each other with the packaging film 5 conveyed in the horizontal direction therebetween. The pair of first rotating shafts 22 are arranged so as to extend in a direction perpendicular to the transport direction of the packaging film 5, and rotate synchronously by receiving a rotational force of a drive motor (not shown). A cutter blade 23a is built in a tip end surface of the upper cutter portion 23 opposite to a portion where the first rotary shaft 22 is attached. Although not shown, the cutter blade 23a has a shape that forms a perforation for intermittent cutting. In addition, a receiving blade 24a is built in the distal end surface of the lower cutter portion 24 opposite to the mounting portion of the first rotary shaft 22.

  The upper and lower first rotating shafts 22 and, consequently, the upper cutter section 23 and the lower cutter section 24 rotate synchronously, and the cutter blade 23a of the upper cutter section 23 and the receiving blade 24a of the lower cutter section 24 come into contact with each rotation. Then, the contact portion of the packaging film 5 is cut. In the present embodiment, the lengths of the cutter blade 23a and the receiving blade 24a are set to a predetermined length shorter than the film width of the packaging film 5, and are set so as to be positioned at the center of the packaging film 5 in the width direction. That is, both ends in the length direction of the cutter blade 23a and the receiving blade 24a do not reach both side edges of the packaging film 5, but are located inside by a predetermined distance. Then, the cutter device 21 cuts the packaging film 5 in the horizontal direction at intervals corresponding to the packaging pitch. Thereby, perforated cuts 5a are formed in the packaging film 5 at intervals corresponding to the packaging pitch.

  A first camera device 25 is arranged downstream of the cutter device 21. The first camera device 25 photographs the packaging film 5. Then, the inspection device (not shown) performs image processing on the captured video output from the first camera device 25 to determine whether the cut 5a is formed correctly. If the cut 5a is not formed correctly, Outputs a failure detection signal. Based on the defect detection signal, the packaging machine body 1 performs predetermined defective product processing, for example, discards a package having the defective cut as a defective product.

  The tape attaching device main body 31 is disposed downstream of the first camera device 25. The tape affixing device main body 31 contacts and supplies the opening tape 32 having a length longer than the cut 5a to a predetermined position of the packaging film 5 while moving the tape 32 at the same speed as the conveying speed of the packaging film 5 and at the same time. Then, the opening tape 32 is sandwiched and pressurized and heated, and the opening tape 32 is thermally bonded to the packaging film 5. At this time, the predetermined position of the packaging film 5 with which the opening tape 32 is brought into contact is a position covering the cut 5a formed in the previous stage. The specific configuration of the tape attaching device main body 31 will be described later.

  The second camera device 26 is disposed downstream of the supply position of the opening tape 32 to the packaging film 5 in the tape attaching device main body 31. The second camera device 26 captures an image of an area including the opening tape 32 stuck on the packaging film 5. Then, the inspection device (not shown) performs image processing on the captured video output from the second camera device 26, determines whether the opening tape 32 is correctly attached to the position covering the cut 5a, and correctly attaches the tape 32. If not, a failure detection signal is output. Based on the defect detection signal, the packaging machine main body 1 performs predetermined defective product processing, for example, discards a package having the unsealing tape 32 that is not correctly attached to a desired position as a defective product.

  A sealing device 27 is arranged downstream of the second camera device 26. An upper sealer 29 and a lower sealer 30 are attached to a pair of second rotating shafts 28 that are vertically arranged opposite to each other with the packaging film 5 conveyed in the horizontal direction therebetween. The pair of second rotating shafts 28 are arranged so as to extend in a direction perpendicular to the transport direction of the packaging film 5, and rotate synchronously by receiving a rotational force of a drive motor (not shown). The upper sealer 29 and the lower sealer 30 each have a built-in heater, and the sealing surfaces at the tips of each are heated to a predetermined temperature. The upper and lower second rotary shafts 28 and, consequently, the upper sealer 29 and the lower sealer 30 rotate in synchronism, and the seal surface of the upper sealer 29 and the lower sealer 30 come into contact with each rotation. Therefore, at the time of this contact, the package film 5 and the opening tape 32 are sandwiched and heated and pressed. As a result, the opening tape 32 is firmly and completely sealed to the packaging film 5 and integrated, and the cut 5a is sealed.

  Next, a specific configuration of the tape attaching device main body 31 will be described. The tape sticking device main body 31 of the present embodiment includes a rotation support mechanism (not shown) that rotatably supports a reel 35 that has wound up an elongate strip-shaped tape 36 with a heat-welding adhesive that constitutes an unsealing tape; A plurality of free rollers 37 and a course changing roller 38 arranged at predetermined positions forming a path for transporting the band-shaped tape 36 fed from the reel 35 supported by the rotation support mechanism along a predetermined path, and sandwich the band-shaped tape 36. A feed roller 39 that provides a transfer force by the feed roller 39, a transfer belt device 40 that is disposed downstream of the feed roller 39 and transfers the belt-shaped tape 36 in a sucked state, and is disposed in the middle of the tape transfer path of the transfer belt device 40. The tape cutter device 42 and a cut piece formed by cutting the band-shaped tape 36 into predetermined dimensions by the tape cutter device 42 That comprises a suction drum 45 for transporting adsorbed tear tape 32, the heater drum 46 or the like which is opposed to the suction drum 45 across the packaging film 5.

  The feed roller 39 is disposed immediately adjacent to the carry-in side of the conveyor belt device 40, sandwiches the band-shaped tape 36 from above and below, and receives an output of a drive motor (not shown) to rotate a pair of upper and lower feed rollers 39 to rotate the band-shaped tape 36. Is pulled out and supplied to the subsequent conveyor belt device 40.

  The transport belt device 40 includes a drive pulley 50 and a driven pulley 51 disposed outside each of both side edges of the packaging film 5, and an endless belt 52 wrapped around both pulleys. The drive pulley 50 is disposed on the back side of the film supply device 2, and the driven pulley 51 is disposed on the front side of the film supply device 2. Thereby, the endless belt 52 of the transport belt device 40 is disposed so as to cross the packaging film 5 in the width direction. Further, the endless belt 52 of the transport belt device 40 rotates in a vertical plane, and the upper side is a transport section. In the transport section, the endless belt 52 moves from the near side to the far side. Further, the belt width of the endless belt 52 is shorter than the tape width of the band-shaped tape 36 so that both left and right sides of the band-shaped tape 36 project outward from both sides of the endless belt 52.

  Further, a first guide member 55 and a second guide member 56 are arranged in the transport belt device 40 along the transport section. The endless belt 52 moving in the transport section contacts the upper surfaces of the first guide member 55 and the second guide member 56 and moves while being guided. Further, the endless belt 52 has a through hole 52a penetrating in the thickness direction of the belt.

  On the other hand, the first guide member 55 and the second guide member 56 include suction means. By driving the suction means, the through-hole 52 a provided in the endless belt 52 becomes a suction port, and sucks and holds the contacting strip tape 36 and the cut-off opening tape 32. The belt-shaped tape 36 and the opening tape 32 are transported together.

  In addition, the moving speed of the endless belt 52 in the transport belt device 40 is higher than the feeding speed of the belt-shaped tape 36 by the feed roller 39. Accordingly, the moving speed of the belt-shaped tape 36 on the transport belt device 40 is regulated by the feed roller 39, and the endless belt 52 moves relatively forward while sliding on the belt-shaped tape 36 to be attracted.

  A predetermined space is provided between the first guide member 55 and the second guide member 56 arranged before and after in the traveling direction, and the tape cutter device 42 is arranged in the space. In order to secure the predetermined space, the free pulley 58 is disposed at a predetermined position below each of the first guide member 55 and the second guide member 56. The endless belt 52 is stretched over the pair of free pulleys 58. As a result, the endless belt 52 moving in the first conveyance section on the first guide member 55 changes its course downward when reaching the front end position of the first guide member 55, and the detour path defined by the two free pulleys 58 To reach the rear end position of the second guide member 56, and then move in the second transport section on the second guide member 56. The free pulley 58 disposed below the first guide member 55 is located closer to the apparatus than the front end of the first guide member 55 along the traveling direction of the endless belt 52, and disposed below the second guide member 56. The free pulley 58 is located at a position farther in the apparatus than a rear end of the second guide member 56 along the traveling direction of the endless belt 52. As a result, the interval between the pair of free pulleys 58 is longer than the separation distance between the upper surfaces of the first guide member 55 and the second guide member 56, and the detour from the first guide member 55 to the second guide member 56 is performed. As for the route, a space that spreads downward is secured.

  The tape cutter device 42 is disposed by utilizing the expanded space and the like. That is, the tape cutter device 42 includes a pair of rotating members 60 arranged vertically above and below the belt-shaped tape 36, a cutter blade 61 attached to the upper rotating member 60, and a receiving blade 62 attached to the lower rotating member 60. Is provided. The pair of rotating bodies 60 rotate synchronously by receiving the rotating force of a drive motor (not shown). Each time the upper and lower rotating bodies 60 make one rotation, the cutter blade 61 and the receiving blade 62 come into contact with each other and cut the band-shaped tape 36.

  The rotation speed of the rotating body 60, the conveyance speed of the conveyance belt device 40, and the rotation speed of the feed roller 39 are appropriately controlled, and the leading end of the belt-shaped tape 36 has moved downstream by a predetermined length from the tape cutter device 42. At the timing, the cutter blade 61 and the receiving blade 62 mesh with each other to cut the band-shaped tape 36. Thereby, a piece of tape having a predetermined length is manufactured. The predetermined length to be cut is the same as the length of the opening tape 32. The cut tape pieces are separated from the subsequent belt-shaped tape 36 to become individual opening tapes 32. The cut-off opening tape 32 is released from being driven by the feed roller 39, receives a conveying force only from the conveying belt device 40, and is conveyed at the same speed as the moving speed of the endless belt 52. As described above, since the moving speed of the endless belt 52 of the transport belt device 40 is higher than the feeding speed of the belt-shaped tape 36 by the feed roller 39, the opening tape 32 is gradually removed from the subsequent belt-shaped tape 36. Move forward while moving away from Then, the transport belt device 40 is temporarily stopped at a timing when the opening tape 32 reaches immediately below the suction drum 45. At least while the transport belt device 40 is temporarily stopped, the feed roller 39 is also temporarily stopped, and the feeding of the belt-shaped tape 36 is stopped.

  An assist device 65 is arranged below the suction drum 45 and around the second guide member 56 of the transport belt device 40. The assist device 65 includes a bifurcated push-up member 66 and a cylinder 67 that moves the push-up member 66 up and down. The push-up member 66 straddles the second guide member 56 from below, and the tip 66a of the push-up member 66 moves up and down at a position close to both sides of the second guide member 56. That is, when the push-up member 66 is at the lowered position, the tip 66 a of the push-up member 66 is located at the same level as or lower than the upper surface of the second guide member 56. When the push-up member 66 is raised by driving the cylinder 67 from this state, the tip 66a of the push-up member 66 is also raised, supporting both side edges of the opening tape 32 from below and lifting the same. At this time, when the suction of the second guide member 56 is released, the opening tape 32 smoothly rises. In this manner, the opening tape 32 is delivered to the suction drum 45 while being pushed up from below.

  The area where the suction is released may be the entire second guide member 56 or only the area immediately below the suction drum 45. If only the area immediately below is set, the suction continues in the other areas, so that, for example, the state in which the succeeding band-shaped tape 36 is suction-held can be maintained.

  The suction drum 45 has a rotating shaft 70 disposed above the endless belt 52 so as to extend in parallel with the moving direction of the endless belt 52, and a cylindrical rotating member mounted on the rotating shaft 70 and integrally rotating. A body 71 and five suction bases 72 arranged at equal angular intervals along a circumferential direction on a side surface 71 a of the cylindrical rotating body 71 are provided. The suction platform 72 includes a plurality of through holes 72b in a tip surface 72a opposite to the mounting surface to the cylindrical rotary body 71, and through a suction path provided inside the suction base 72 and thus in the cylindrical rotary body 71. To the suction pump (not shown). An opening / closing valve is provided for each path leading to each suction base 72, and suction is performed through a through hole 72 b of an arbitrary suction base 72 of the five suction bases 72, and a through hole 72 b of another suction base 72 is provided. A state in which suction is not performed can be configured.

  When a certain suction base 72 is located at the lowermost position and faces the endless belt 52 of the transport belt device 40, the front end surface 72 a of the suction base 72 is close to the endless belt 52 and is pushed up by the push-up member 66. The opening tape 32 is set so as to come into contact with the front end surface 72a. Further, the rotating shaft 70 is controlled so as to rotate intermittently, and temporarily stops in a state where each suction base 72 comes to the lowermost position and faces the endless belt 52. During this temporary stop, the push-up member 66 rises, pushing up the opening tape 32 and bringing it into contact with the tip end surface 72 a of the suction platform 72. At this time, the suction drum 45 starts suctioning the suction base 72 located below at an appropriate timing, and suction-holds the opening tape 32 on the front end surface 72a. Thus, the delivery of the opening tape 32 from the conveyor belt device 40 to the suction drum 45 is completed. When the transfer is completed, the rotating shaft 70 rotates by a predetermined angle, and the next suction stage 72 is positioned at the lowermost position to wait. Further, while the rotation shaft 70 rotates by a predetermined angle, the band-shaped tape 36 is fed out by a predetermined length and cut, and a process is performed in which the opening tape 32 formed by the cut is positioned immediately below the suction drum 45. Thereafter, by repeating the above-described processing, the opening tape 32 is sequentially transferred to each suction base 72 of the suction drum 45, and the transferred opening tape 32 is transferred to the suction base 72 together with the suction base 72. The rotary member 71 rotates and moves along the side surface 71 a of the rotary member 71.

  On the other hand, when the suction platform 72 sucking the opening tape 32 reaches the top, the tip end surface 72a, and furthermore, the opening tape 32 sucked by it comes into contact with the packaging film 5 conveyed and moved upward. At least while the opening tape 32 is in contact with the packaging film 5, the rotation speed of the rotating shaft 70 is controlled such that the moving speed of the opening tape 32 is equal to the moving speed of the packaging film 5.

  In the present embodiment, since five suction base portions 72 are provided, for example, in a state where a certain suction base portion 72 is temporarily stopped at the lowest position and the transfer process of the standby / opening tape 32 is executed, Also does not reach the top, and does not come into contact with the packaging film 5. On the other hand, when a certain suction base 72 is located at the top and is rotating at the same speed as the packaging film 5, no other suction base 72 is located at the lowest position, so that it is necessary to temporarily stop. In addition, the rotation can be performed.

  The heater drum 46 is arranged in parallel with the suction drum 45 with the packaging film 5 interposed therebetween. The heater drum 46 has a rotating shaft 75, a cylindrical rotating body 76 mounted on the rotating shaft 75 and integrally rotating, and an equiangular interval along a circumferential direction on a side surface 76 a of the cylindrical rotating body 76. It has five sealers 77 arranged. Each of these sealers 77 has a built-in heater, and the sealing surface 77a at the tip is heated to a predetermined temperature. The rotating shafts 70 and 75 opposed to each other with the packaging film 5 interposed therebetween rotate in synchronization with each other, and each time the rotation shafts are rotated by 72 degrees, the pair of the leading end surface 72a of the suction base 72 and the sealing surface 77a of the sealer 77 are attached to the packaging film 5. Between the top and bottom. When the packaging film 5 is sandwiched between the pair of suction bases 72 and the sealer 77, the packaging film 5 and the opening tape 32 are heated and pressed to thermally weld the opening tape 32 to the packaging film 5. More specifically, it is adhered by using a heat-welding adhesive included in the opening tape 32.

  Further, a heater may be built in the suction base portion 72. In the case where the heater is built in, for example, the opening tape 32 is heated while the opening tape 32 is being moved while being sucked and held, and the heat-welding adhesive is applied. It is preferable because the tape 32 is softened and the opening tape 32 can be thermally welded to the packaging film 5 in a short time.

  In the above-described embodiment, both the suction base 72 and the sealer 77 are set to be equal to five. However, the present invention does not necessarily have to have the same number. However, it is preferable to use the same number of installations as in the embodiment, since both need only be rotated intermittently in the same manner, so that rotation control can be easily performed.

  In the above-described embodiment, five suction base portions 72 are provided, but the number of installation portions may be an arbitrary odd number such as three. By making the number odd, it is possible to reliably receive the opening tape 32 in a state of being temporarily stopped at the lowermost position as in the embodiment, and to affix to the packaging film 5 while moving at the same speed as the packaging film 5 at the top. it can. Thus, for example, as shown in the embodiment, the opening tape 32 can be attached while the packaging film 5 is being conveyed in the horizontal direction. Further, as in the embodiment, the cutter device 21 and the first camera device are used. 25, the second camera device 26, the sealing device 27, and the like can be arranged collectively in a section where the packaging film 5 is transported in the horizontal direction.

  In the present invention, as described above, it is not always necessary to set the number of the adsorbing base portions 72 to be an odd number, and it may be an even number. In the case of an even number, the receiving position of the unsealing tape on the suction drum 45 and the attaching position to the packaging film are not necessarily shifted by 180 degrees as in the embodiment, but may be set to different angular positions as appropriate.

  In the above-described embodiment, the quality is determined based on the image data captured using the first camera device 25 and the second camera device 26. However, the quality may be determined using various sensors, for example.

  In the above-described embodiment, the tape 32 for opening is heat-welded to the packaging film 5 by the main body 31 of the tape affixing device, and then the main sealing is performed by the sealing device 27. If necessary, the sealing device 27 may not be provided.

  As described above, various aspects of the present invention have been described using the embodiments and the modified examples. However, these embodiments and the description are not intended to limit the scope of the present invention, and are not intended to limit the scope of the present invention. Please note that it was provided to contribute. The scope of the present invention is not limited to the configurations and manufacturing methods explicitly described in the specification, but also includes combinations of various aspects of the present invention disclosed in the specification. Of the present invention, the structure for which a patent is sought is specified in the appended claims. However, even if the present invention is not specified in the claims, it is disclosed in the present specification. It is worth noting that this configuration may be claimed in the future.

DESCRIPTION OF SYMBOLS 1 Wrapping machine main body 2 Film supply apparatus 4 Conveyed thing conveyance supply apparatus 5 Packaging film 5a Cut 6 Raw material roll 20 Tape sticking device 21 Cutter device 25 First camera device 26 Second camera device 27 Sealing device 31 Tape sticking device main body 32 Opening tape 35 Reel 36 Band-shaped tape 37 Free roller 38 Path change roller 39 Feed roller 40 Conveyor belt device 42 Tape cutter device 45 Suction drum 46 Heater drum 52 Endless belt 52 a Through hole 65 Assist device 72 Suction table 77 Sealer

Claims (7)

A tape attaching device that attaches an opening tape to the packaging film that is provided on a packaging film transport path in a packaging machine and is continuously transported without intermittent,
Means for paying out a belt-like tape;
Cutter means for cutting the fed belt-shaped tape,
A conveyor belt device that conveys the opening tape formed by being cut and separated from the belt-shaped tape in a sucked state,
An adsorption drum arranged above the unloading side of the transport belt device,
A receiving drum disposed opposite to the suction drum with the packaging film interposed therebetween,
With
Arranged so that a rotation axis of the suction drum and the receiving drum extends in a direction intersecting with a conveying direction of the packaging film,
The suction drum has a suction unit, and in a state where the suction unit is positioned on the unloading side of the transport belt device and is temporarily stopped, the opening tape on the transport belt device is transferred. ,
The suction drum is rotated in a state where the delivered opening tape is suction-held, so that the suction-held opening tape is brought into contact with the packaging film,
The receiving drum presses the packaging film sandwiched between the suction unit and the suction unit,
At least one of the suction drum and the receiving drum includes a heating unit that heats the sandwiched packaging film.   2. The tape sticking device according to claim 1, further comprising an assist device that lifts the unsealing tape on the transport belt device, on an unloading side of the transport belt device. 3. The suction unit has a plurality of suction units along a circumferential direction of the suction drum,
In a state where one of the plurality of suction units is positioned on the unloading side of the conveyor belt device and is temporarily stopped, the plurality of suction units are configured to be in non-contact with the packaging film. Item 3. The tape sticking device according to Item 1 or 2. The number of the suction portions is an odd number,
The tape sticking apparatus according to claim 3, wherein the suction unit receives the opening tape at a lowermost position, and sticks the tape to the packaging film at a topmost position. The heating means is a sealer provided on a side surface of the receiving drum along a circumferential direction,
5. The tape according to claim 3, wherein the number of the suction units and the number of the sealers are equal, and the suction drum and the receiving drum rotate intermittently synchronously. 6. Pasting device. The belt-shaped tape is a tape material with a heat-welding adhesive,
The tape sticking device according to any one of claims 1 to 5, wherein the opening tape is stuck so as to cover a cut provided in the packaging film. A packaging machine body that wraps the packaged object with a packaging film,
A film supply device that continuously supplies the band-shaped packaging film to the packaging machine body,
A packaged object transport / supply device that is arranged on the upstream side of the packaging machine body and supplies the packaged object to the packaging machine body,
It is provided with the tape sticking device according to any one of claims 1 to 6,
A horizontal pillow wrapping machine, wherein the opening tape is attached to the wrapping film being conveyed by the film supply device by the tape affixing device.

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