JP2018111515A - Tape sticking device and lateral type pillow packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape sticking device for sticking an unsealing tape on a packaging film during continuous conveyance.CONSTITUTION: A belt-like tape 36 is unwound from a reel 35 with a feed roller 39 and is supplied to a first drum 51. The belt-like tape is adsorbed with a rotating first drum and is moved along a side face of the first drum. The belt-like tape is cut with a cutter blade 55 of a second drum 52 for each determined size, and then an unsealing tape 32 is formed to be conveyed to the lowest position while adsorbed with the first drum. The conveyed unsealing tape is handed over to an adsorption table part 72 of an adsorption drum 45 rotating at the same circumferential speed as the first drum. The adsorption drum rotates as it is, and the adsorption table part being adsorbing the unsealing tape reaches the lowest position, then, the unsealing tape is brought contact with a packing film and is sandwiched in this state with a sealer 77 of a heater drum 46 and the adsorbing table part, is heated and pressed to be stuck by heat-welding.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a tape applicator and a horizontal pillow wrapping machine, and relates to an apparatus for applying a tape to a packaging film in the middle of conveyance in a direction crossing the traveling direction.

  As one form of the package, there is one in which an opening tape is attached to a bag formed by wrapping an article to be packaged with a packaging film. As an example of a package provided with this kind of opening tape, there is one disclosed in, for example, FIG. The package according to Patent Document 1 is designed to facilitate opening and resealing. An opening tape is attached so as to close a cut provided in the packaging film, and the opening tape is opened at the time of opening. To expose the cut and take out the contents. 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 strength of the adhesive.

  As a packaging machine for manufacturing a package including such an opening tape, there is a vertical pillow packaging machine provided with a tape sticking device disclosed in Patent Document 1. As shown in FIG. 2 and the like, the tape sticking device disclosed in Patent Document 1 is a direction in which the opening tape is orthogonal to the transport direction of the belt-shaped packaging film by the clamp from the state wound in a roll shape. The opening tape is drawn out so as to overlap with the upper part of the packaging film so as to extend to the upper side of the packaging film, cut into a predetermined length, and attached to the packaging film.

  Thus, the opening tape stuck by the tape sticking device is transported integrally with the packaging film and supplied to the vertical pillow packaging machine body. The main body of the vertical pillow wrapping machine manufactures a package by wrapping an article to be packaged using the supplied packaging film with an opening tape.

  Moreover, there exists a tape sticking apparatus disclosed by patent document 2, for example in the apparatus which sticks such an opening tape. This tape sticking apparatus adopts a configuration in which an opening tape wound in a roll shape is pulled out by an adsorption belt, cut by a cutter, and then thermally welded to a film by a hot plate.

Japanese Patent No. 3592072 JP-A-8-230844

  All of the above-described conventional apparatuses can only perform the process of bringing the opening tape into contact with the packaging film and attaching it only when the packaging film is temporarily stopped. Therefore, the packaging film needs to be conveyed intermittently, and the packaging machines that can be handled are limited to those that are intermittently driven, such as the vertical pillow packaging machine disclosed in Patent Document 1, for example. 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, and there is a problem in that it cannot cope with high speed and production efficiency is poor.

  In order to solve the above-described problems, a tape sticking device according to the present invention is (1) a tape for opening on a packaging film that is provided in a packaging film conveyance path in a packaging machine and is continuously conveyed without being intermittent. A device for continuously feeding a strip tape having a tape width corresponding to the length in the longitudinal direction of the opening tape, and a cylindrical main body at the tip of the fed strip tape A first drum that rotates while adsorbed to the side surface of the first drum, and a rotary cutter means that includes a plurality of cutter blades in the rotation direction of the rotation shaft that is arranged in parallel with the rotation shaft of the first drum The opening tape formed by being cut and separated from the belt-like tape while being sandwiched between the cutter blade and the first drum is in a state where it is adsorbed to the first drum The opening tape in the transfer position is brought into contact with the packaging film, heated in the contacted state, and the opening tape and the packaging film are pressurized and heated. A pasting means for pasting is provided. The tape width corresponding to the length in the longitudinal direction of the opening tape is that the tape width is equal to or longer than the length in the longitudinal direction, and preferably equal to the length in the longitudinal direction. If it is equal to the longitudinal direction, the opening tape can be manufactured simply by cutting the strip tape so as to cross at a predetermined pitch. In the embodiment, the means for feeding the belt-shaped tape corresponds to the feed roller 39 and the like. The cutter means corresponds to the second drum 52 in the embodiment.

  In the present invention, the fed strip-shaped tape is cut every predetermined length by the cutter means. As a result, cut pieces having a predetermined length are sequentially formed from the top of the belt-like tape. This cut piece becomes an opening tape to be attached to the packaging film. Since the tape width of the strip tape is set to a length corresponding to the length in the longitudinal direction of the opening tape, the cutting pitch in the cutter means is set to the tape width of the opening tape, that is, the length in the short direction. And the number of manufactured products per short time can be increased. Since this unsealing tape is cut and manufactured and remains in the state of being attracted to the first drum from the delivery position, it is surely conveyed to the desired position in a stable posture and state. Further, since the belt-like tape adsorbed on the first drum is cut by the rotary cutter means, the belt-like tape can be continuously fed without being intermittent. Then, the opening tape at the delivery position is brought into contact with the packaging film by the attaching means, and heated in the contacted state to pressurize and heat the opening tape and the packaging film. Thereby, the tape for opening is heat-welded and affixed on a packaging film. Further, when the opening tape is brought into contact with the packaging film, it may be performed in accordance with the movement of the packaging film, such as rotational movement. Thereby, the tape for opening can be stuck without stopping the packaging film.

  (2) The peripheral speed of the side surface of the first drum is made faster than the moving speed of the strip tape regulated by the feeding means, and the first drum is in the state where the strip tape is adsorbed. It is good to comprise so that it may rotate so that it may move forward relatively with respect to a tape. In this case, since the peripheral speed of the side surface of the first drum is made higher than the moving speed of the strip tape, the first drum in the state where the strip tape is adsorbed is slid relative to the strip tape. On the other hand, since the opening tape that has been cut and separated from the strip tape moves according to the peripheral speed of the first drum, it moves forward relative to the strip tape and is conveyed to the delivery position. Therefore, for example, by changing the peripheral speed of the first drum, the strip tape can be stably moved and fed out at a predetermined constant speed. Regardless of whether or not the peripheral speed of the first drum is variable, the adjustment to make the movement speed when the opening tape moves near the delivery position and the movement speed of the other party to be delivered are the same Since it can be done regardless of speed, it can be done easily.

  (3) The adhering means includes an adsorption drum arranged on the carry-out side of the first drum, and a receiving drum arranged opposite to the adsorption drum across the packaging film, and the adsorption drum And the rotation axis of the receiving drum is arranged so as to extend in a direction intersecting the conveyance direction of the packaging film, and the suction drum has a plurality of suction portions along the circumferential direction, and the plurality of suction drums In a state where one of the parts is performing the delivery process of the opening tape at the delivery position of the first drum, the plurality of suction parts are not in contact with the packaging film, The opening tape that has been sucked and held is brought into contact with the packaging film by rotating in a state in which the delivered opening tape is sucked and held, and the receiving drum, The opening tape and the packaging film are sandwiched and pressed between the attachment portions, and at least one of the suction drum and the receiving drum heats the opening tape and the packaging film in the sandwiched state. It is preferable to have a heating means.

  The receiving drum corresponds to the heater drum 46 in the embodiment. The heating means corresponds to the sealer 77 provided on the heater drum 46 in the embodiment. In the embodiment, the sealer 77 as the heating means is provided on the heater drum 46 side 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 the modification. 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. In the embodiment, the suction part corresponds to the suction base part 72, the distal end surface 72a, and the like. The number of the adsorbing portions may be one, but when a plurality of adsorbing portions are provided as described above, it is possible to efficiently and smoothly transfer the opening tape to the adsorbing portion and apply the tape to the packaging film. Furthermore, when the opening tape is being transferred from the first drum to the suction part, the other suction part is not in contact with the packaging film. It is preferable because the film is not scratched or stressed.

  If it does in this way, the tape for opening in the said delivery position of a 1st drum will oppose an adsorption | suction part. Next, the opening tape is delivered to the adsorbing portion facing each other, and is adsorbed and held by the adsorbing portion. For this delivery, for example, as described in (3) below, it is preferable to use a function to assist delivery so that air is ejected. However, such a function is not necessarily required. While suctioning in the state of being close to the opening tape at the delivery position and releasing the suction of the first drum, the opening tape may be adsorbed to the adsorption portion, and various methods can be taken. The delivery of the opening tape can be performed smoothly and reliably in a short time when the first drum and the suction drum are rotated while their peripheral speeds are matched. The opening tape adsorbed and held by the adsorbing part moves as a unit according to the revolution movement of the adsorbing part accompanying the rotation of the adsorbing drum, contacts the packaging film when rotated by a predetermined angle, and is wrapped by the receiving drum and the adsorbing part. The film and the opening tape are sandwiched and pressurized and heated. Thereby, the tape for opening is heat-welded and affixed on a packaging film. Further, when the opening tape is brought into contact with the packaging film, it is rotated while being moved. Thereby, the tape for opening can be stuck without stopping the packaging film.

  (4) The first drum may have a function of ejecting outward air to the opening tape held at the delivery position. If it does in this way, the opening tape in a delivery position will act so that it may move away from the side of the 1st drum with air, and it can approach or contact a suction part, and it can do delivery smoothly.

  (5) The affixing means includes a receiving drum that is disposed to face the first drum across the packaging film, and is in the delivery position between the receiving drum and the first drum. The opening tape and the packaging film are sandwiched and pressurized, and at least one of the receiving drum and the first drum has a heating means for heating the opening tape and the packaging film in the sandwiched state. It is good to configure. In this way, a simple configuration is preferable.

  The receiving drum corresponds to the heater drum 46 in the embodiment. The heating means corresponds to the sealer 77 provided on the heater drum 46 in the embodiment. In the embodiment, the sealer 77 as the heating means is provided on the heater drum 46 side 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 the modification. 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. When mounting the heating unit on the receiving drum side, for example, the pasting unit includes a heater drum arranged to face the first drum across the packaging film, and the heater drum includes the first drum It is preferable to have a sealer that pressurizes and heats the unsealing tape and the packaging film in the delivery position.

  (6) The said strip-shaped tape is a tape material with a heat-welding adhesive, and it is good to affix the said opening tape so that the cut provided in the said packaging film may be covered. If it does in this way, it may be preferably applied to manufacture the package which can be resealed by the adhesive force of an adhesive after opening.

  (7) A horizontal pillow packaging machine according to the present invention includes a packaging machine body that wraps an article to be packaged with a packaging film, a film supply device that continuously supplies the belt-shaped packaging film to the packaging machine body, A packaged article transport and supply device that is arranged on the upstream side of the packaging machine body and that supplies the packaged article to the packaging machine body; and the tape applicator according to any one of (1) to (6). It is good to comprise so that the said tape for opening may be affixed on the said packaging film in the middle of conveyance with the said film supply apparatus with the tape applicator. There are various types of packaging bodies manufactured by the packaging machine main body, such as a type in which a seal portion that seals both side edges of the packaging film is located at the center of the packaging body, and a three-side seal type that is located at the side edges of the packaging body. According to the present invention, in a horizontal pillow packaging machine that continuously conveys a packaging film without being intermittent and performs a packaging process, the opening tape can be applied in a direction that intersects the conveyance direction of the packaging film. . Therefore, production efficiency can be produced for such a package with an opening tape.

  The number of the adsorbing parts is an odd number, and the adsorbing part receives the opening tape at the topmost delivery position, for example, as in the embodiment, and then attaches it to the packaging film at a position rotated by 180 degrees. You should do it. In this case, for example, while the suction part that matches the peripheral speed of the suction drum with the peripheral speed of the first drum is delivering the opening tape, neither suction part comes into contact with the packaging film. Even if the peripheral speed is different from the moving speed of the packaging film, the conveyance of the packaging film may not be hindered. In addition, when the adsorbing portion that has received the delivery is rotated 180 degrees and the adhering and holding opening tape is brought into contact with the packaging film and attached, no adsorbing portion faces the delivery position. It is not necessary to adjust the peripheral speed to the peripheral speed of the first drum, and it is sufficient that the opening tape can be attached while rotating the suction portion in accordance with the transport direction of the packaging film.

  Further, when the heating means is a sealer provided along the circumferential direction on the side surface of the receiving drum, the number of the suction portions installed is equal to the number of the sealers installed, and the suction drum and the receiving drum are It is preferable to rotate while performing acceleration / deceleration control synchronously. In this way, the rotation control of the suction drum and the receiving drum can be easily performed.

  According to the present invention, since the opening tape can be adhered to the packaging film that is continuously fed, packaging with the opening tape can be performed with high production efficiency. The opening tape can be manufactured at a high speed while being continuously fed out without temporarily stopping the belt-like tape.

It is a front view which shows suitable one Embodiment of the tape sticking apparatus and horizontal pillow packaging machine which concern on this invention. FIG. It is the side view. It is a perspective view (the 1) which shows a tape sticking apparatus. It is a perspective view (the 2) which shows a tape sticking apparatus. It is the front view. It is the top view in the state which abbreviate | omitted illustration of the packaging film. It is the side view in the state which abbreviate | omitted illustration of the packaging film. It is the principal part expansion perspective view.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that 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, and FIG. 4 and subsequent figures show a preferred embodiment of a tape applicator. The horizontal pillow packaging machine is disposed on the upstream side of the packaging machine main body 1, the film supply device 2 for continuously supplying the belt-shaped packaging film 5 to the packaging machine main body 1, and the packaging machine main body 1. A packaged article transport and supply device 4 that supplies the packaged article to the machine body 1 at predetermined intervals is provided.

  The film supply device 2 supports an original roll 6 obtained by winding a belt-shaped packaging film 5 into a roll shape, and conveys the packaging film 5 continuously drawn out from the original roll 6 along a predetermined trajectory. It has the function to supply to the packaging machine main body 1. Specifically, the rotation support shaft 11 on which the raw roll 6 is mounted is cantilevered on a bearing portion provided in the back box 10 disposed above the upstream end of the packaging machine body 1. Two rotation support shafts 11 are provided on the front and rear sides at a predetermined interval. When the packaging film 5 fed out from the original fabric roll 6 mounted on one rotation support shaft 11 (right side in FIG. 1) is supplied to the packaging machine body 1, the supply of the packaging film 5 from the original fabric roll 6 is completed. The switching to the supply of the packaging film 5 from the original roll 6 mounted on the other rotation support shaft 11 (left side in FIG. 1) is alternately repeated.

  The rotation support shaft 11 is linked to a drive motor (not shown) (for example, a motor capable of speed control such as a servo motor) via an endless chain or other power transmission mechanism, and appropriately controls the rotation speed of the drive motor. The packaging film 5 is continuously supplied to the packaging machine body 1 at a constant speed. Various rollers 12 are arranged at predetermined positions from the original fabric roll 6 to the packaging machine main body 1, and the packaging film 5 fed out from the original fabric roll 6 is passed over the rollers 12, thereby providing a predetermined path. It is guided to the packaging machine main body 1 through. In the present invention, it is not always necessary to link the drive motor to the rotation support shaft 11, and a feed roller may be provided on the conveyance path of the packaging film 5 and pulled out.

  The to-be-packaged goods conveyance supply apparatus 4 is comprised, for example by the sprocket arrange | positioned forward and backward, the endless chain spanned over the sprocket, and the several feed finger attached to the endless chain for every predetermined pitch. Thus, when the feed finger hits the rear surface of the article to be packaged, the article to be packaged moves forward on the transport surface 4a as the push finger moves.

  The packaging machine body 1 includes a bag making device 15 for making a bag of the supplied packaging film 5, a center seal device 16 disposed on the downstream side of the bag making device 15, and a downstream side of the center seal device 16. A top seal device 17 disposed on the top side, and a carry-out conveyor 18 disposed on the downstream side of the top seal device 17. The bag making device 15 allows the side edge portions of the packaging film 5 to come into contact with each other (polymerization) by passing the belt-like packaging film 5 continuously supplied from the film supply device 2, and to form a bag in a cylindrical shape. To do. In addition, the articles to be packaged that are sequentially supplied from the article transport and supply device 4 to the packaging machine body 1 are inserted into the bag making machine 15. Thus, the articles to be packaged supplied to the bag making machine 15 are arranged at predetermined intervals in the packaging film 5 that is produced in a cylindrical shape, and are conveyed along with the packaging film 5 in the packaging machine body 1.

  The center seal device 16 seals both side edges of the polymerized packaging film 5. The center seal device 16 includes, for example, a pair of left and right sealers. The pair of sealers sandwiches the overlapped portions of the side edge portions of the packaging film 5 and pressurizes and heats them to perform heat sealing.

  The top seal device 17 seals and cuts the packaging film 5 in a direction orthogonal to the traveling direction of the packaging film 5 produced in a cylindrical shape, that is, in a transverse direction. The film part to be sealed / cut is a predetermined position between the front and back packages. Thereby, the top part of the cylindrical packaging film 5 is isolate | separated from the subsequent by passing the top seal apparatus 17, and a package is manufactured. Then, the manufactured package is conveyed by the carry-out conveyor 18.

  The horizontal pillow packaging machine of this 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, and the object to be packaged can be taken out from the cut when the opening tape is peeled off. Further, if 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 by the adhesive strength of the remaining adhesive. It has functions that can be done. In order to manufacture such a simple re-sealable packaging body, the horizontal pillow packaging machine of this embodiment is provided with the tape sticking apparatus 20 shown 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 close the formed cut Is performed in a state where the packaging film 5 is continuously conveyed without being intermittent. The film transport path in the film supply apparatus 2 is temporarily moved in the horizontal plane toward the upstream side of the horizontal pillow packaging machine at the upper position (first movement section A), and then the course is changed downward to a predetermined distance. After the downward movement (second movement section B), the section includes a section that moves in the horizontal plane (third movement section C) toward the downstream side at a lower position by changing the course, and the tape attaching device 20 A tape sticking process is performed between the first movement section A and the third movement section C.

  If it demonstrates along the conveyance path | route of the packaging film 5, first, the tape sticking apparatus 20 is the width | variety orthogonal to the conveyance direction in the packaging film 5 in the 1st movement area A which moves toward an upstream in an upper position. A cutter device 21 for forming a cut 5a in the direction is provided. The cutter device 21 has a configuration in which an upper cutter portion 23 and a lower cutter portion 24 are respectively attached to a pair of first rotating shafts 22 that are vertically opposed to each other with the packaging film 5 conveyed in the horizontal direction interposed therebetween. The pair of first rotating shafts 22 are arranged so as to extend in a direction orthogonal to the conveyance direction of the packaging film 5, and rotate in synchronization with the rotational force of a driving motor (not shown). A cutter blade 23 a is built in the tip surface of the upper cutter portion 23 on the opposite side to the attachment portion of the first rotary shaft 22. Although not shown, the cutter blade 23a has a shape that forms a perforation that is cut intermittently. In addition, a receiving blade 24 a is built in the tip surface of the lower cutter portion 24 on the side opposite to the attachment portion of the first rotating shaft 22.

  The upper and lower first rotary shafts 22 and the upper cutter part 23 and the lower cutter part 24 rotate synchronously, and the cutter blade 23a of the upper cutter part 23 and the receiving blade 24a of the lower cutter part 24 come into contact with each rotation. Then, the contact part of the packaging film 5 is cut. In the present embodiment, the cutter blade 23 a and the receiving blade 24 a are set to have a predetermined length shorter than the film width of the packaging film 5, and are set so as to be positioned at the central portion in the width direction of the packaging film 5. 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 on the inside by a predetermined distance. Then, the cutter device 21 cuts the packaging film 5 in the lateral direction at intervals corresponding to the packaging pitch. Thereby, the perforated cut 5a is formed in the packaging film 5 at intervals corresponding to the packaging pitch.

  A first camera device 25 is disposed on the downstream side 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, determines whether the cut 5a is formed correctly, and if the cut 5a is not formed correctly, Outputs a defect detection signal. Based on the defect detection signal, the packaging machine body 1 performs predetermined defective product processing, for example, discarding the packaging body having the defective cut as a defective product.

  The tape applicator main body 31 is disposed in the lower space region of the packaging film 5 that is transported through the first movement section A, on the downstream side of the first camera device 25 in the transport direction of the packaging film 5. The tape applicator main body 31 moves the opening tape 32 having a length longer than the cut line 5 a at the same speed as the transport speed of the packaging film 5 to a predetermined position of the packaging film 5 that is moving in the third moving section C. The packaging film 5 and the unsealing tape 32 are sandwiched and pressed and heated, and the unsealing 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 that covers the cut 5a formed in the preceding stage. A specific configuration of the tape applicator main body 31 will be described later.

  A second camera device 26 is arranged on the downstream side of the supply position of the opening tape 32 to the packaging film 5 in the tape applicator main body 31. The second camera device 26 photographs an area including the opening tape 32 attached 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 or not the opening tape 32 is correctly attached to the position covering the cut 5a, and attaches it correctly. If not, a defect detection signal is output. Based on this defect detection signal, the packaging machine main body 1 performs predetermined defective product processing, for example, discards the packaging body having the opening tape 32 that is not correctly attached to a desired position as a defective product.

  A sealing device 27 is disposed on the downstream side 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 arranged vertically opposite to each other with the packaging film 5 conveyed in the horizontal direction interposed therebetween. The pair of second rotation shafts 28 are arranged so as to extend in a direction orthogonal to the conveyance direction of the packaging film 5, and rotate in synchronization with the rotational force of a drive motor (not shown). Each of the upper sealer 29 and the lower sealer 30 has a built-in heater, and the sealing surfaces at the tips of each other are heated to a predetermined temperature. The upper and lower second rotary shafts 28, that is, the upper sealer 29 and the lower sealer 30 rotate in synchronization, and the seal surfaces of the upper sealer 29 and the lower sealer 30 come into contact with each rotation. Therefore, the packaging film 5 and the opening tape 32 are sandwiched and heated and pressurized during this contact. Thereby, the opening tape 32 is firmly sealed and integrated with the packaging film 5 and the cut 5a is sealed.

  Next, the specific structure of the tape sticking apparatus main body 31 is demonstrated. The tape applicator main body 31 of the present embodiment includes a rotary support shaft 34 that rotatably supports a reel 35 around which a wide strip tape 36 with a heat-welding adhesive that constitutes an opening tape is wound, and its rotary support. A free roller 37 disposed at a predetermined position that constitutes a path for conveying the belt-like tape 36 fed from the reel 35 supported by the shaft 34 along a predetermined locus, and a feed roller 39 that sandwiches the belt-like tape 36 and applies a feeding force. The opening tape is arranged on the downstream side of the feed roller 39, cuts the tip of the strip tape 36 to form the opening tape 32, and conveys the formed opening tape 32 while being separated from the subsequent strip tape 36. Adsorption drum for adsorbing and conveying the forming and conveying device 40 and the opening tape 32 conveyed by the opening tape forming and conveying device 40 5, comprises a like heater drum 46 which is attracting drum 45 and face each other across the packaging film 5.

  The feed roller 39 sandwiches the belt-like tape 36 from above and below, receives the output of a drive motor (not shown), and rotates the pair of upper and lower feed rollers 39 to pull out the belt-like tape 36 to form a tape forming and conveying device for the subsequent opening. 40. In this embodiment, the feed roller 39 is controlled to continuously rotate at a constant speed, and continuously feeds the strip tape 36 from the reel 35 at a constant transport speed.

  The tape width W of the belt-like tape 36 is equal to the length of the long side of the opening tape 32. Thus, the opening tape 32 can be manufactured at a high speed one after another by sequentially cutting the belt-like tape 36 from the top at a cutting pitch corresponding to the length D of the short side of the opening tape 32. The cutting tape forming and conveying device 40 performs the cutting process. The opening tape forming and conveying device 40 includes a pair of left and right first drums 51 and second drums 52. As for the 1st drum 51 and the 2nd drum 52, rotating shaft 51a, 52a is arrange | positioned in parallel. The axial directions of the rotary shafts 51a and 52a are arranged so as to extend in the direction orthogonal to the transport direction of the strip tape 36, that is, in the film width direction.

  The first drum 51 includes a large number of through holes 53 on the side surface 51b of the cylindrical main body. The through-holes 53 are provided in a plurality of rows at a predetermined angular pitch in the circumferential direction for one row arranged linearly in the axial direction. The through hole 53 is linked to a suction pump (not shown) through a suction path provided in the first drum 51. The suction path is formed by cutting the strip-shaped tape 36 that is in contact with the through-hole 53 that is in a predetermined angular range of the circumferentially arranged through-hole 53 and that is connected to the suction pump to form a suction port. The opening tape 32 is adsorbed.

  The second drum 52 includes cutter blades 54 at a predetermined angular pitch on the side surface 52b of the cylindrical main body. The cutter blade 54 extends in the axial direction, and the predetermined cutter blade 54 contacts the side surface 51 b of the first drum 51 at every predetermined angle as the second drum 52 rotates, and cuts the strip-shaped tape 36.

  The peripheral speed on the side surface 51 b of the first drum 51 is higher than the feeding speed of the strip tape 36 by the feed roller 39. Thereby, the moving speed when the strip tape 36 moves along the side surface 51b of the first drum 51 is defined by the feed roller 39, and the first drum 51 adsorbs the strip tape 36 and is wound around the side surface 51b. Thus, it rotates so as to move forward relative to the adsorbing belt-like tape 36 while sliding.

  The rotational speed of the second drum 52 and the rotational speed of the feed roller 39 are appropriately controlled, and the leading end of the strip tape 36 is downstream from the contact position between the cutter blade 54 and the side surface of the first drum 51 by a predetermined length D. The next cutter blade 54 meshes with the side surface of the first drum 51 at the timing of the movement to cut the belt-like tape 36. Thereby, the tape piece of predetermined length is manufactured. Then, the cut piece of tape is separated from the subsequent strip tape 36 and becomes individual opening tapes 32.

  The opening tape 32 formed by being cut is released from the drive by the feed roller 39, receives the conveying force from only the first drum 51, and remains adsorbed to the side surface 51b of the first drum 51. 51 is transported at the same speed as the peripheral speed. As described above, since the peripheral speed of the first drum 51 is higher than the feeding speed of the strip tape 36 by the feed roller 39, the opening tape 32 is gradually separated from the subsequent strip tape 36. Moving. Then, when the suction-opening tape 32 reaches the lowest position in the circumferential direction of the first drum 51, it comes close to the suction drum 45 disposed immediately below and is transferred to the suction drum 45 side. .

  In order to perform this delivery smoothly, the suction to the through hole 53 at the lowest position is stopped. At this time, the suction from the through holes 53 at other positions is continuously performed. As a result, the belt-like tape 36 and the unsealing tape 32 before reaching the lowest position are maintained in the state of being attracted to the first drum 51. Further, since the suction state may be maintained by the negative pressure only by stopping the suction, it is preferable that the air is ejected from the through hole 53 at the lowest position. To stop the suction, for example, an opening / closing valve may be provided for each path to the through hole 53 at the lowest position, and the opening / closing valve may be closed at an appropriate timing. Also, if air is ejected, it is possible to detach from the adsorption of the first drum 51 more reliably.

  The suction drum 45 is disposed immediately below the first drum 51 so as to extend in parallel with the rotation shaft 51a of the first drum 51, and a cylinder that is attached to the rotation shaft 70 and rotates integrally therewith. The rotating body 71 and five suction stand portions 72 arranged on the side surface 71a of the cylindrical rotating body 71 at equal angular intervals along the circumferential direction are provided. The suction table 72 includes a plurality of through holes 72b on the tip surface 72a opposite to the mounting surface to the cylindrical rotator 71, and the inside of the suction table 72 and thus through a suction path provided in the cylindrical rotator 71. And linked to a suction pump (not shown). An opening / closing valve is provided for each path leading to each suction table 72, and suction is performed from a through hole 72 b of any of the five suction tables 72, and through holes 72 b of the other suction tables 72 are A state where no suction is performed can be configured.

  In addition, in a state where a certain suction platform 72 is located at the top and faces the lowermost position of the side surface 51 b of the first drum 51, the front end surface 72 a of the suction platform 72 is close to the side surface 51 b and the first drum 51. It is set so as to be close to or in contact with the opening tape 32 adsorbed on the tape.

  Further, the rotation shaft 70 is controlled to increase / decrease speed, and in the section where each suction stand 72 comes to the top and faces the unsealing tape 32 held by the first drum 51, the periphery of the side surface 51b of the first drum 51 is received. The speed and the peripheral speed of the front end surface 72a of the suction platform 72 are set to the same speed. While rotating at the same speed in this way, the suction to the opening tape 32 on the first drum 51 side is released, and the suction drum 45 is sucked by the suction base 72 located at the top. Is started at an appropriate timing, and the opening tape 32 is sucked and held on the front end surface 72a. The delivery of the opening tape 32 from the first drum 51 to the suction drum 45 is completed.

  When this delivery is completed, the rotation shaft 70 rotates by a predetermined angle in accordance with the timing when the next opening tape 32 sucked by the first drum 51 comes to the lowermost position, and the next suction stand 72 is placed at the top. Then, the next opening tape 32 is delivered. Thereafter, by repeating the above processing, the opening tapes 32 are successively transferred to the respective suction table portions 72 of the suction drum 45, and the opened opening tapes 32 are transferred together with the suction table portions 72 to the cylinders. The rotary body 71 rotates and moves along the side surface 71a.

  On the other hand, when the suction platform 72 that is adsorbing the opening tape 32 reaches the lowermost position, the leading end surface 72a and the opening tape 32 adsorbed to the leading end surface 72a is transported and moved in the lower third movement section C. 5 is contacted. At least while the opening tape 32 is in contact with the packaging film 5, the rotational speed of the rotary shaft 70 is controlled so 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 table parts 72 are provided, for example, a certain suction table part 72 is located near the top, and rotates at a speed corresponding to the peripheral speed of the first drum 51 to perform the delivery process of the opening tape 32. In the running state, any other suction stand 72 does not reach the lowermost position and is not in contact with the packaging film 5. On the other hand, when a certain suction platform 72 is at the lowest position and is rotating at the same speed as the packaging film 5, the rotation of the first drum 51 is not performed because no other suction platform 72 is positioned at the top. There is no need to match the speed. Therefore, the rotation speed of the suction drum 45 can be controlled to an appropriate speed according to each angular position.

  The heater drum 46 is disposed 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 that is attached to the rotating shaft 75 and rotates as a unit, and a side surface 76a of the cylindrical rotating body 76 at equal angular intervals along the circumferential direction. It has five sealers 77 arranged. Each of these sealers 77 incorporates a heater, and the seal surface 77a at the tip is heated to a predetermined temperature. The rotating shafts 70 and 75 arranged opposite to each other with the packaging film 5 interposed therebetween are rotated in synchronism, and the tip surface 72a of the suction stand 72 and the seal surface 77a of the sealer 77 that are paired with each rotation of 72 degrees are the packaging film 5. From above and below. When the packaging film 5 is sandwiched between the pair of suction tables 72 and the sealer 77, the packaging film 5 and the opening tape 32 are heated and pressurized to thermally weld the opening tape 32 to the packaging film 5. More specifically, it is adhered and pasted using a heat-welding adhesive provided in the opening tape 32. Thereby, it can affix on the desired position of the packaging film 5 conveyed continuously, without temporarily stopping the packaging film 5, and can be applied to a horizontal pillow packaging machine.

  Further, in the present embodiment, the opening tape can be formed while continuously feeding the strip-shaped tape 36 without being intermittent, and the cut pitch for the strip-shaped tape 36 can be the length of the short side of the opening tape. , Can increase the number of opening tapes manufactured per unit time, and can smoothly and quickly transport the opening tapes manufactured at such high speed across the side surfaces of each drum and supply them to the packaging film. Since it can be pasted and pasted, it is possible to cope with an increase in the transport speed of the packaging film in the packaging machine.

  In addition, a heater may be built in the suction stand 72, and in the case of being built in, for example, the opening tape 32 is heated while the opening tape 32 is sucked and held, and the heat-welding adhesive is applied. The opening tape 32 can be heat welded to the packaging film 5 in a short time.

  In the embodiment described above, the number of the suction stand portions 72 and the sealers 77 is set equal to five, but the present invention is not necessarily limited to the same number. However, if the number of installations is the same as in the embodiment, it is preferable to rotate both of them in the same manner, which is preferable because rotation control can be easily performed.

  In the embodiment described above, the five suction stand parts 72 are provided, but the number of installations may be any odd number such as three. By making it an odd number, the opening tape 32 is reliably received while rotating in accordance with the rotation speed of the first drum 51 at the top as in the embodiment, and moving at the same speed as the packaging film 5 at the lowermost position. It can be attached to the packaging film 5. Thus, as shown in the embodiment, for example, the opening tape 32 may be attached when the packaging film 5 is being conveyed in the horizontal direction.

  In the present invention, as described above, it is not always necessary to set the number of the suction stand units 72 to an odd number, and an even number may be used. In the case of an even number, it is preferable that the receiving position of the opening tape on the suction drum 45 and the attaching position to the packaging film are not shifted by 180 degrees as in the embodiment, but appropriately different angular positions.

  In the above-described embodiment, the pass / fail determination is performed based on the image data captured using the first camera device 25 and the second camera device 26. However, the pass / fail determination may be performed by various sensors, for example.

  In the above-described embodiment, the opening tape 32 is thermally welded to the packaging film 5 by the tape applicator main body 31, and then the main seal is made by the seal device 27. However, the tape applicator main body 31 provides a desired sealing strength. If possible, the sealing device 27 may not be provided.

  In the above-described embodiment, the unsealing tape unloaded from the first drum 51 is received by the suction drum 45, and is sandwiched and pasted between the suction drum 45 and the heater drum 46, but the present invention is limited to this. For example, without providing the suction drum 45, the opening tape located at the delivery position such as the lowest position of the first drum 51 is brought into direct contact with the packaging film 5, and the sealer between the first drum 51 and the heater drum 46 is obtained. 77, the opening tape 32 and the packaging film 5 may be sandwiched and pressed and heated to be attached. In this case, the rotation direction of the first drum 51 may be reversed from that of the embodiment in accordance with the conveyance direction of the packaging film, and the arrangement of each device may be appropriately reversed or the like accordingly.

  As described above, various aspects of the present invention have been described using the embodiments and the modifications. However, these embodiments and descriptions are not intended to limit the scope of the present invention, and are for understanding the present invention. It is added 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, and includes combinations of various aspects of the present invention disclosed in the present specification. Among the present inventions, the configuration for which a patent is sought is specified in the appended claims, but the present invention is disclosed in this specification even if the configuration is not specified in the claims. I would like to remind you that there is a possibility of claiming this configuration in the future.

DESCRIPTION OF SYMBOLS 1 Packing machine main body 2 Film supply apparatus 4 Packaged article conveyance supply apparatus 5 Packaging film 5a Cut 6 Original fabric roll 20 Tape sticking apparatus 21 Cutter apparatus 25 First camera apparatus 26 Second camera apparatus 27 Sealing apparatus 31 Tape sticking apparatus main body 32 Opening tape 35 Reel 36 Strip tape 37 Free roller 39 Feed roller 40 Opening tape forming and conveying device 42 Tape cutter device 45 Adsorption drum 46 Heater drum 51 First drum 52 Second drum 53 Through hole 54 Cutter blade 72 Adsorption stand 77 Sheila

Claims (7)

A tape applicator for attaching an opening tape to the packaging film that is provided in the conveyance path of the packaging film in the packaging machine and continuously conveyed without being intermittent,
Means for continuously feeding a strip-shaped tape having a tape width corresponding to the length in the longitudinal direction of the opening tape;
A first drum that rotates in a state in which the leading end of the fed strip-shaped tape is adsorbed to the side surface of the cylindrical main body;
A rotary cutter means comprising a plurality of cutter blades in the rotation direction of the rotary shaft arranged in parallel with the rotary shaft of the first drum;
With
The opening tape formed by being cut and separated from the belt-like tape between the cutter blade and the first drum is moved to the delivery position while being adsorbed to the first drum. ,
The opening tape in the delivery position is brought into contact with the packaging film, and is provided with a pasting means that heats and presses the opening tape and the packaging film by heating in the contacted state. A tape sticking device.   The peripheral speed of the side surface of the first drum is made faster than the moving speed of the strip tape regulated by the feeding means, and the first drum is in a state where the strip tape is adsorbed to the strip tape. The tape sticking device according to claim 1, wherein the tape sticking device is configured to rotate so as to move forward relatively. The affixing means comprises an adsorption drum arranged on the carry-out side of the first drum, and a receiving drum arranged opposite to the adsorption drum across the packaging film,
Arranged so that the rotation shafts of the suction drum and the receiving drum extend in a direction intersecting the transport direction of the packaging film,
The suction drum has a plurality of suction portions along a circumferential direction, and one of the plurality of suction portions is in a state in which the opening tape is delivered at the delivery position of the first drum. The plurality of adsorbing portions are not in contact with the packaging film,
The adsorbing drum is rotated in a state where the received opening tape is adsorbed and held so that the adsorbing and holding opening tape is brought into contact with the packaging film,
The opening tape and the packaging film are sandwiched and pressed between the receiving drum and the suction part,
The tape sticking apparatus according to claim 1, wherein at least one of the suction drum and the receiving drum has a heating unit that heats the unsealed tape and the packaging film in the sandwiched state.   The tape pasting apparatus according to claim 3, wherein the first drum has a function of ejecting outward air to the opening tape held at the delivery position. The affixing means comprises a receiving drum arranged opposite to the first drum across the packaging film,
Between the receiving drum and the first drum, the opening tape and the packaging film in the delivery position are sandwiched and pressed,
The tape sticking device according to claim 1 or 2, wherein at least one of the receiving drum and the first drum has a heating means for heating the unsealed tape and the packaging film in the sandwiched state. The strip tape is a tape material with a heat-welding adhesive,
The tape applicator according to any one of claims 1 to 5, wherein the opening tape is applied so as to cover a cut provided in the packaging film. A packaging machine body for wrapping an article to be wrapped with a packaging film;
A film supply device for continuously supplying the belt-shaped packaging film to the packaging machine body;
A to-be-packaged article transport and supply device that is disposed on the upstream side of the wrapping machine main body and that supplies the wrapping article to the wrapping machine main body;
The tape applicator according to any one of claims 1 to 6, comprising:
A horizontal pillow wrapping machine configured to affix the opening tape to the wrapping film that is being conveyed by the film supply device using the tape applicator.

Images