JP2011068467A - Automatic film joining method and splicer in packing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically replace a film, even in the film unjoinable since a coating layer is arranged on one surface. <P>SOLUTION: A paper strip-like joining film is made by cutting the distal end of a belt-like film 3b for joining over the whole width, and the rear end of a belt-like film 3a supplied to a packing machine and the front end of a preliminary film are set in a butting state, and are arranged so as to straddle both films while facing a sealable non-coated surface by reversing the joining film. Next, the film is joined by sandwiching an end part of both films and the joining film by a seal device 31, and thermally sealing by heating. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is mounted on a packaging machine, and when the used raw roll is used up, the new roll roll is wound around the rear end of the packaging film that has been unwound from the roll. The present invention relates to a joining method and a splicer for automatically joining the leading ends of packaging films.

  As is well known, an automatic packaging machine wraps an article to be packaged using a strip-shaped packaging film continuously supplied from a film supply apparatus, and seals and cuts a predetermined position to produce a package. .

  This film supply device rotatably supports an original roll obtained by winding a packaging film into a roll, and feeds the packaging film from the original roll and supplies it to the packaging machine body side. As a matter of course, the supply of packaging film from one original roll is limited, and when all of the wound packaging film is unwound, the packaging film is transferred from another original roll. There will be a splicer that will do this switching automatically. This splicer rotatably supports a plurality of (usually two) original fabric rolls. And the packaging film (B) is a packaging film by connecting the front-end | tip part of the packaging film (B) of the other original fabric roll to the termination | terminus site | part of the packaging film (A) from one original fabric roll. Following (A), it will be supplied to the packaging machine body side.

  The connection between the two packaging films (A) and (B) is usually performed using an adhesive tape in a state where the ends of the packaging films (A) and (B) are overlapped. In addition, as in the automatic splicing method of a film disclosed in Patent Document 1, there is also a method in which end portions of the film are overlapped and welded and bonded by hot pressing.

JP-A-1-139455

  In the case of the method of joining with an adhesive tape, since it is necessary for an operator to set the adhesive tape on the film edge part beforehand, it takes time and effort. Moreover, in the case of the method of laminating | stacking films and welding and joining by hot press, when the coating is given to the single side | surface of a film, it may be unable to join.

  In order to solve the above-described problems, the present invention is (1) the rear of the film that is supplied to the packaging machine by cutting one end of the film to be bonded over the entire width to create a strip-shaped bonding film. Set so that the end part of the film and the front end part of the spare film are in contact with each other, the non-coating surface that can be sealed is turned over by reversing the bonding film, and is placed across the two films. The end portions of both the films and the bonding film are both sandwiched and sealed by a sealer.

  (2) Joining film creating means for creating a strip-shaped joining film by cutting the leading end of the film fed from the preliminary roll, and the rear end of the film being supplied to the packaging machine, The means for setting the joining film in a state where the front end of the preliminary film after the joining film is abutted, and the joining film created by the joining film creating means are received, and the joining film The non-coating surfaces that can be sealed face each other, and are arranged so as to straddle the two films, and sealing means for heat-sealing the ends of the two films and the bonding film.

  (3) The transfer means includes a first transfer means for receiving the bonding film created by the bonding film creating means and transferring the bonding film to a delivery position, and the first transfer means moved to the delivery position. It is good to provide the 2nd transfer means which arrange | positions the received said bonding film so that it may straddle both said films while receiving the said bonding film to hold | maintain. In the embodiment, the first transfer means is realized by the first vacuum portion 26a, the support arm 26b, and the like. In the embodiment, the second transfer means is realized by the second vacuum 26c or the like. In this case, when the surface of the bonding film held by the first transfer means is an uncoated surface, the opposite surface is held by the second transfer means, so that the non-coated surface can be exposed and overlapped with the film. .

  In the present invention, since no sealing tape is required, it is not necessary to prepare and set a sealing tape, and workability is improved. Moreover, since the film for packaging uses the packaging film as it is, no foreign matter is present during the packaging process, and a clean packaging process can be performed. Even if the film is difficult to join because the coating layer is provided on one side, the film can be automatically replaced.

It is a front view which shows an example of the packaging machine in which the splicer of this invention was integrated. It is a top view which shows suitable one Embodiment of the splicer which concerns on this invention. It is a figure which expands and shows the structure of a part of the splicer. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method. It is a figure explaining the film automatic joining method.

  FIG. 1 shows an example of a packaging machine incorporating the splicer of the present invention, FIG. 2 shows an embodiment of the splicer of the present invention, and FIG. 3 is an enlarged view of a part of the splicer. It shows. Further, FIG. 4 and subsequent figures show diagrams for explaining the action of the splicer. This packaging machine 1 is a blister packaging machine (PTP packaging machine) for producing a PTP sheet, and the drawing shows a part of the upstream side of the blister packaging machine.

  A PTP (Press Through Packaging) sheet is formed with a plurality of pockets on the sheet surface of a plastic sheet, and tablets and capsules are stored in the pockets, and the sheet surface is hermetically sealed with a sheet material such as aluminum foil. It becomes the structure. The splicer 10 of this embodiment is for a plastic sheet that forms a pocket portion. Briefly, the packaging machine 1 is described. A belt-like film 3 continuously fed from a splicer 10 by a feed roller 2 is passed over a roller or the like arranged at an appropriate position, passes through a predetermined path, and a tension adjusting device (dancer roller). ) 4 and supplied to the transfer device 5. The transport device 5 transports both side edges of the strip-shaped film 3 while being guided by guides. A molding device 6 is provided at a predetermined position of the transport path of the transport device 5, and a pocket portion formed of a concave portion protruding downward is formed at a predetermined position of the belt-like film 3. Further, a hopper 7 is provided above the conveying device 5, and an article to be packaged such as a tablet supplied into the hopper 7 is supplied into each pocket by the article supply device 8. Although not shown in the drawings, on the downstream side of the transport device 5, a device for supplying the upper film so as to cover the upper surface of the belt-like film 3, a seal device for sealing the contact portion between the upper film and the belt-like film 3, A cutter device or the like that cuts the sealed predetermined portion vertically and horizontally to form individual PTP sheets is disposed.

  Next, the configuration of the splicer 10 of this embodiment will be described. The splicer 10 according to the present embodiment can hold three original fabric rolls, any one of which is used to supply a belt-like film to the packaging machine body, and the rest is reserved. That is, a rotating shaft 12 that rotates in a vertical plane is rotatably supported by a standing wall 11 installed at a predetermined position of the apparatus. The first, second, and third rotation support shafts 14a, 14b, and 14c are attached to the rotation shaft 12 at intervals of 120 degrees so as to be cantilevered, and the rotation support shafts 14a, 14b, The raw fabric rolls 15a, 15b, and 15c are attached to 14c.

  In the figure, the first rotation support shaft 14a is located directly above, and the second rotation support shaft 14b and the third rotation support shaft 14c are arranged counterclockwise. As shown in the figure, a state in which one rotation support shaft is located directly above and the remaining two rotation support shafts are arranged on the lower left and right is the reference state, and the original fabric roll located above in the reference state (In the figure, the original fabric roll 15a mounted on the first rotation support shaft 14a) is used to request the belt-like film 3 to the packaging machine body side, and the remaining original fabric roll is used as a spare. Of the spare original rolls, the original roll located at the lower left in the figure (in the figure, the original roll 15b mounted on the second rotation support shaft 14b) is a belt-like belt that is currently supplied in advance. When the film runs out, it is joined to the preceding strip film and supplied continuously. Further, when the joining / supplying is completed, the rotating shaft 12 rotates clockwise by 120 degrees at an appropriate timing, and continuously feeds the strip film (in the above example, the original fabric roll). 15b) is located directly above, and in this case, the original roll (new roll 15c in the above example) newly located at the lower left is joined and continued when the belt-like film being supplied is lost. To supply. In this way, the two raw rolls sequentially supply the belt-like film to the packaging machine body.

  For convenience of explanation, the belt-shaped film fed out from the raw roll 15a attached to the first rotation support shaft 14a as required is denoted by reference numeral 3a and from the original roll 15b attached to the second rotation support shaft 14b. The belt-shaped film that is fed out is denoted by reference numeral 3b, and the belt-shaped film that is fed from the original roll 15c attached to the third rotation support shaft 14c is denoted by reference numeral 3c. Any of the strip films 3 a to 3 c becomes the strip film 3 when supplied to the packaging machine 1.

  Further, three support plates 17 extending from the center toward the outer periphery are attached to the rotation shaft 12 between the rotation support shafts 15a, 15b, and 15c. The support plates 17 are also arranged at intervals of 120 degrees. And the 1st roller 18a and the 2nd roller 18b are attached to the outer side of the support plate 17 rotatably. These first and second rollers 18a and 18b are fed with belt-shaped films fed from the original fabric rolls 15a, 15b and 15c, and guide their courses. More specifically, the belt-like film 3b fed out from the original fabric roll located in the lower left (in the figure, the original fabric roll 15b attached to the second rotation support shaft 14b) has the second rollers 18b, The route is changed to the upper side by being stretched around the first roller 18a. Further, a driving roller 19 is disposed at a position facing the first roller 18a, and the belt-like film 3b is sandwiched between the driving roller 19 and the first roller 18a. Therefore, when the driving roller 19 is rotationally driven, the belt-like film 3b sandwiched between the first roller 18a is pulled out and moves forward.

  Furthermore, an air suction port is provided on the surface of the support plate 17 on which the first and second rollers 18a and 18b are attached, and a belt-like shape fed out from a spare original fabric roll (reference numerals 15b and 15c in the figure). The leading edge of the film (reference numerals 3b and 3c in the drawing) stands by in contact with the attached surface of the support plate 17 and sucked at the air suction port.

  The drive roller 19 is linked to the output shaft of the drive motor 20 and rotates when the drive motor 20 rotates. And the drive motor 20 is attached below the support plate 21 arrange | positioned so that it may extend up and down. The support plate 21 rotates forward and backward within a predetermined angle range around the upper rotation shaft 21a. The support plate 21 cooperates with the cylinder rod 22a of the first cylinder 22 at an intermediate point between the rotating shaft 21a and the lower end. As the cylinder rod 22a of the first cylinder 22 extends / shortens, the support plate 21 Rotate. That is, when the cylinder rod 22a is positioned at the minimum shortened position, as shown by the solid line in the figure, the support plate 21 takes a straightly suspended posture (reference posture), and between the drive roller 19 and the first roller 18a. Then, the belt-like film 3b is sandwiched. On the other hand, when the cylinder rod 22a is located at the maximum extension position, the support plate 21 takes a posture (a retracting posture) that is rotated clockwise around the rotation shaft 21a (a retracting posture). Get away.

  One end (lower end) of the movable guide member 23 is provided coaxially with the rotation shaft 21 a of the support plate 21. The movable guide member 23 rotates forward and backward independently of the support plate 21.

Specifically, the movable guide member 23 rotates forward and backward around one end thereof following the extension / reduction operation of the cylinder rod of the second cylinder 27. When the cylinder rod is in the minimum shortened position, as shown in FIGS. 2 and 3, the movable guide member 23 is inclined obliquely in a direction in which the other end (upper end) is separated from the original roll 15a (first Posture), and when the cylinder rod is in the maximum extension position, the movable guide member 23 is in an upright state (second posture) as shown in FIG.

  Further, guide rails 23a having a U-shaped cross section are provided on both side edges of the surface of the movable guide member 23 facing the belt-like film. The lower end of the guide rail 23a protrudes from the movable guide member 23, and the protruding portion has an inverted L-shape (a portion of the U-shape that is in contact with the surface of the movable guide member 23 is missing). ). As a result, as shown in FIGS. 3 and 4 and the like, the cylinder rod 22a is in the shortened position and the support plate 21 (main body) is in the reference posture in which it hangs down straight, and the movable guide member 23 is inclined to the first posture. At some point, the lower end of the guide rail 23a blocks the path of the belt-like film 3b that is sandwiched between the drive roller 19 and the first roller 18a and transferred upward.

  As a result, as shown in FIG. 4, the belt-like film 3b sandwiched between the driving roller 19 and the first roller 18a and receiving the driving force is fed out by a predetermined length, and its tip is near the rotating shaft 21a of the support plate 21. When the driving roller 19 further rotates and the belt-shaped film 3b is fed out from the state where the belt is guided, the both side edges of the leading edge of the belt-shaped film 3b come into contact with the lower leading edge of the guide rail 23a, and the course thereof reaches the guide rail 23a. Bend along. Therefore, as shown in FIG. 5, since both side edges at the front end of the belt-like film 3b are guided by the guide rail 23a, the belt-like film 3 is interposed between the movable guide member 23 and the guide rail 23a (the movable guide member 23). Of the film-like film side surface).

  On the other hand, as shown in FIG. 9 and subsequent figures, when the second rod 27 is extended and the movable guide member 23 is erected and straightened in the vertical direction, the belt-like film 3b is It can move up almost straight on the line connecting the roll 18b and the first roll 18a.

  In addition, a cradle 25 is provided on the upper extension line of the guide rail 23a when the movable guide member 23 is in the first posture (inclined posture), and the first cutter device 24 is obliquely above the movable guide member 23. Is arranged. The first cutter device 24 is provided with a cutter blade 24a at the tip, and can move forward and backward integrally with the cradle 25 by a cylinder or other driving means. And as shown in FIG. 4 etc., the 1st cutter apparatus 24 moves forward, the surface (receiving surface side) of the receiving stand 25 is the strip | belt-shaped film 3a side rather than the film conveyance surface (guide rail 23a) of the movable guide member 23. The state positioned at is a standby state, and moves backward when cutting the belt-like film. Furthermore, in this embodiment, since the cutter blade 24a is a disk-shaped rotary type, it can advance to the horizontal direction (width direction of the strip | belt-shaped film 3b). A groove 25a is formed on the surface of the cradle 25 facing the cutter blade 24a. The groove 25a is formed so as to extend in the horizontal (lateral) direction, that is, in the width direction orthogonal to the traveling direction of the strip film. Further, when in the standby state, the cutter blade 24a stands by at a position shifted outward from the region through which the belt-like film 3b passes.

  As a result, as shown in FIG. 5, the first cutter device 24 moves backward so that the surface (receiving surface side) of the cradle 25 is substantially flush with the film conveying surface (guide rail 23 a) of the movable guide member 23. The cutter blade 24a is driven when the belt-like film 3b moves forward and the leading edge of the belt-like film 3b covers the surface of the cradle 25, as shown in FIG. The leading edge of the strip-shaped film 3b is cut by moving the blade 24a laterally along the groove 25a of the cradle 25. As a result, the strip-shaped film portion is separated into a bonding film (bonding tape) 28 by cutting and separating the leading end of the strip-shaped film 3b.

  Above the first cutter device 24, a transfer device 26 for transferring the strip-shaped bonding film 28 is provided. The transfer device 26 supports the first vacuum portion 26a that adsorbs the bonding film 28 that is positioned on the receiving base 25 by cutting the front end of the belt-like film 3b by the first cutter device 24, and the first vacuum portion 26a. A supporting arm 26b, a second vacuum portion 26c that receives the bonding film 28 adsorbed by the first vacuum portion 26a and sets it at a sealing position (a bonding position between the band-shaped film 3a and the band-shaped film 3b), and the supporting arm 26b, A base plate 26d to which the second vacuum part 26c is attached is provided. This base plate 26 is also movable forward and backward. The support arm 26b is linked to the cylinder rod of the third cylinder 26e, and rotates forward and backward within a predetermined angle range by a power transmission mechanism using a plurality of gears 26f that rotate forward and backward. Specifically, as described above, the first vacuum portion 26a reciprocates between the position facing the cradle 25 and the position overlapping the base plate 26d.

  On the other hand, the second cutter device 30 and the sealing device 31 are arranged on the opposite side of the transfer device 26 with the belt-like film 3b interposed therebetween. A cradle 32 is disposed at a position facing the second cutter device 30.

  The 2nd cutter apparatus 30 cuts the back part of the strip | belt-shaped film (in the figure, strip | belt-shaped film 3a from the raw fabric roll 15a) currently supplying to the packaging machine 1, and this 2nd cutter apparatus 30 is a tip. While equipped with the rotary cutter blade 30a, it is movable in the width direction of the strip film 3a. A groove 32a is formed on the surface of the cradle 32 facing the cutter blade 30a. Therefore, the cutter blade 30a moves along the groove 32a. Moreover, like the 1st cutter apparatus 24, the cutter blade 30a is located in the state in the outer side of the course of the strip | belt-shaped film 3a in the standby state. The second cutter device 30 and the cradle 32 are fixed at predetermined positions. The second cutter device 30 and the cradle 32 have the same configuration as the first cutter device 24 and the cradle 26, and the first cutter device 24 and the cradle 26 can move forward and backward integrally. On the other hand, the second cutter device 30 and the cradle 32 are different in that they are fixed.

  Thus, when the cutter blade 30a is driven when the belt-like film 3a being conveyed is at a position covering the surface of the cradle 32 as shown in FIG. 11 and the like, the cutter blade 30a is moved to the cradle as shown in FIG. It moves along the inside of the 32 groove | channel 32a, and the back predetermined site | part of the strip | belt-shaped film 31 is cut. After this cutting process (actually before cutting), the operation of the feed roller 2 is temporarily stopped, and the conveyance of the belt-like film 3a is temporarily stopped, so that the rear end position of the belt-like film 3a is set to a desired position (the cutter blade 30a). , Positioning position of the groove 32a).

  The seal device 31 is located downstream of the second cutter device 30 in the transport direction of the strip film 3a, and moves forward and backward toward the strip films 3a and 3b by the fourth cylinder 31a and the fourth cylinder 31a. With.

  Furthermore, the roller 33 that changes the path of the strip film 3a from the original roll (the original roll 15a in the figure) located directly above, and the path of the strip film 3a that has been changed by the roller 33. The fixed guide member 34 which guides is provided. The fixed guide member 34 is provided with U-shaped guide rails 34a extending vertically on both side edges of the surface on the belt-like film 3a side, and both side edges of the belt-like film 3a are guided to the guide rails 34a to be stably desired. Can be moved straight up and down. Further, the guide rail 34a of the fixed guide member 34 is located on the same straight line as the gap formed between the guide rail 23a and the movable guide member 23 when the movable guide member 23 is in the second posture. The belt-like film 3b that has moved up along the guide rail 23a is guided so as to further move up straight.

  Further, above the transfer device 26, a roller 36 is provided for transferring the belt-like film 3, and the path is changed to the feed roller 2 side by the roller 36. The roller 36 is supported by a mounting base 39 that moves up and down, and can move up and down together with the mounting base 39. Further, the mounting base 39 is provided with a clamp 40 so that the belt-like film 3a moving upward along the side surface of the mounting base 39 can be sandwiched and fixed. The clamp 40 is normally open so that the belt-shaped film 3a moves upward and can change its path along the roller 36.

  Further, a tension roller 37 is disposed between the roller 36 and the feed roller 2, and a certain tension is applied by urging the belt-like film 3 downward.

  Next, the function of each component will be described while explaining the operation of the splicer 10 having the above configuration. First, as shown in FIG. 4, the belt-like film 3 a fed out from the raw roll 15 a supported by the first rotation support shaft 14 a is stretched around the roller 33 and its path is changed upward, and the fixed guide member 34 is moved. Ascending movement is guided along and is supplied to the packaging machine 1 (not shown). On the other hand, at a predetermined timing before the supply of the belt-like film 3a wound up on the roll 15a is finished, the belt-like film 3b is removed from the spare roll 15b for the next supply. The belt-like film 3b is set between the driving roller 19 and the first roller 18a with the leading end positioned in the vicinity of the rotation shaft 31a of the support plate 21, and is kept waiting. In this state, the tip portion of the support plate 17 is close to the support plate 21, the tip portion of the belt-like film 3 b is sandwiched between the support plate 17 and the support plate 21, and the tip portion stands upright. Can be retained. At this time, the movable guide member 23 is in the first posture.

  When it is detected by the sensor that the remaining amount of the strip-shaped film 3a wound on the original roll 15a has decreased, the drive motor 20 operates and the drive roller 19 rotates by a predetermined amount. Thereby, the belt-like film 3b in the standby state is fed out from the raw roll 15b, and its tip is raised. As a result, as shown in FIG. 5, the leading end of the belt-like film 3b advances obliquely upward along the movable guide member 23 and the guide rail 23a taking the first posture, and further projects backward from the upper end of the movable guide member 23. To the position covering the surface of the cradle 25. When this state is reached, the drive roller 19 stops. In addition, as shown in the drawing, the fact that the leading edge of the belt-like film 3b has reached the position of the cradle 25 may be monitored by providing a separate sensor, or the drive motor 20 can control the rotation angle of a servo motor or the like. In this case, since the distance traveled by the belt-like film 3b when it is rotated by the reference rotation angle is known, and the distance for transporting the belt-like film 3b from the state of FIG. 4 to the state of FIG. 5 is also known, The state shown in FIG. 5 can be obtained by controlling the rotation angle of the drive motor 20.

  Next, as shown in FIG. 6, the support arm 26b of the transfer device 26 is rotated so that the first vacuum portion 26a is opposed to the cradle 25 from the first position (position overlapping the base plate 26d shown in FIG. 5 and the like). The leading end of the strip film 3b is sandwiched between the cradle 25 and the first vacuum part 26a. Note that the first vacuum part 26a is opposed to the tip side from the groove part 25a. In this state, the first cutter device 24 is operated, the cutter blade 24a is moved closer to the receiving base 25 side and inserted into the groove portion 25a, and the cutter blade 24a is moved along the groove portion 25a. Thereby, the front-end | tip of the strip | belt-shaped film 3b is cut | disconnected and isolate | separated.

  Next, as shown in FIG. 7, while the first cutter device 24 and the receiving No. 25 are moved forward and moved to the standby position, the support arm 26b is rotated clockwise as shown in FIG. 26a is returned to the first position overlapping the base plate 26d. Further, the first vacuum part 26 a starts suction at least before separating from the cradle 25. Thereby, the bonding film 28 is sucked and held in the first vacuum portion 26a returned to the first position.

  Next, as shown in FIG. 9, the second vacuum 26c rotates about 180 degrees, and the vacuum surface 26c 'faces the first vacuum portion 26a. Thereby, the vacuum surface 26 c ′ of the second vacuum 26 c comes into contact with the bonding film 28. In this state, the second vacuum 26c starts suction.

  Further, the cylinder rod of the second cylinder 24 is extended to be in the second posture in which the movable guide member 23 is erected, and the movable guide member 23 is erected. As a result, the movable guide member 23 comes close to the fixed guide member 34, and the guide rail 23a attached to the movable guide member 23 and the guide rail provided to the fixed guide member 34 are arranged vertically on substantially the same straight line. Therefore, the leading end of the belt-like film 3 b protruding from above the guide rail 23 a is inserted and arranged in the guide rail 34 a of the fixed guide member 34.

  When the leading end of the strip-like film 3b is cut to form the bonding film 28, the remaining tip of the strip-like film 3b is movable from the leading end of the movable guide member 23 to the groove 25a of the cradle 25. It is in a state protruding from the guide member 23 to the outside. On the other hand, as is clear from FIG. 9 and the like, the tip (upper end) of the movable guide member 23 in the second posture and the lower end of the fixed guide member 34 are close to each other, so that the tip of the belt-like film 3b is movable as described above. In a state of protruding from the guide member 23, there is a risk that the guide rail 34a of the fixed guide member 34 may not be supplied smoothly. Therefore, before the second posture, the driving roller 19 is once rotated in the reverse direction, the belt-like film 3b is moved backward, the leading end thereof is inserted into the movable guide member 23, and the driving roller after the second posture is reached. 19 is rotated forward. Thereby, as shown in FIG. 9 etc., it can transfer to the state which the front-end | tip of the strip | belt-shaped film 3b is located in the fixed guide member 34a smoothly.

  Next, the suction of the first vacuum part 26a is stopped, and the third cylinder 26e is operated to rotate the support arm 26b, thereby temporarily moving the first vacuum part 26a to the second position. Thereby, as shown in FIG. 10, the bonding film 28 is transferred to the second vacuum 26c. Further, the vacuum surface 26c 'side of the second vacuum 26c is opened, and the second vacuum 26c can be rotated.

  Therefore, as shown in FIG. 11, the second vacuum 26 c further rotates 180 degrees, and the vacuum surface 26 c ′ faces the band-shaped film 3 a side and faces the sealer 31 b of the sealing device 31. At this time, the support arm 26b also rotates and the first vacuum portion 26a returns to the first position.

  Next, the 2nd cutter apparatus 30 act | operates, the cutting blade 30a moves to the horizontal direction along the groove | channel 32a of the receiving stand 32, the band-shaped film 3a is cut in the horizontal direction, and it is unreeled from the original fabric roll 15a. Separate from the strip film. Thereby, the rear end position of the strip-shaped film 3b currently being supplied to the packaging machine is positioned.

  Thereafter, as shown in FIG. 13, the clamp 40 is closed and the belt-like film 3 a is clamped, and the mounting base 39 is moved downward, so that the upper roller 36 is moved downward, and the belt-like film 3 a is also clamped by the clamp 40. Therefore, the lower end position of the belt-like film 3a is lowered by the lowered amount. Specifically, it reaches a position facing the sealer 31 b of the sealing device 31. Further, the driving roller 19 is rotated to feed out the belt-like film 3b, and the tip thereof is moved to a position facing the sealer 31b of the sealing device 31. As a result, the rear end of the belt-like film 3a and the tip of the belt-like film 3b are brought into contact with each other at a position facing the sealer 31b, and held by the second vacuum 26c so as to straddle both the belt-like films 3a and 3b. The bonded bonding films 28 are overlapped.

  Therefore, as shown in FIG. 14, the fourth cylinder 31a of the sealing device 31 is operated, the sealer 31b moves forward toward the strip films 3a and 3b, and the strip film is between the sealer 31b and the second vacuum 26c. 3a, 3b and the bonding film 28 are pressurized and heated and heat-sealed. At this time, the belt-like films 3a and 3b are made of a film material that can be sealed only on one side, and both the belt-like films 3a and 3b are arranged so that the outer side (the bonding film 28 side) can be sealed. Then, by reversing the direction of the bonding film 28 with the second vacuum 26c, the sealable surface of the bonding film 28 can be directed to the sealable surface of both the strip films 3a, 3b, and heat sealing can be performed. Both the band-like films 3a and 3b are joined.

  Thereafter, as shown in FIG. 15, the sealer 31b is moved backward, the roller 36 is also moved upward, the clamp 40 is also released, and the belt-like film 3a can be moved forward, so that the belt-like film 3b is moved to the belt-like film 3a. It is pulled and conveyed with the forward movement of. Therefore, thereafter, the supply of the strip film to the packaging machine 1 is performed by the strip film 3b of the raw roll 15b.

  Then, in preparation for continuous supply of the film when the strip-shaped film 3b from the raw fabric roll 15b is completed, as shown in FIG. 16, the support plate 21 is positioned at the retracted position and the rotating shaft 12 is rotated, The rotation support shafts 14a, 14b, and 14c are revolved 120 degrees clockwise. Thereby, the rotation support shaft 14b and the original fabric roll 15b are positioned directly above, the rotation support shaft 14c and the original fabric roll 15c are positioned on the lower left, and the rotation support shaft 14a is positioned on the lower right.

  Thereafter, the belt-like film is fed out from the raw roll 15c, and the processing procedure described in FIG. 4 and subsequent steps is executed to automatically connect the leading end of the belt-like film 3c fed out from the raw roll 15c to the rear end of the belt-like film 3b. be able to. Moreover, a new original fabric roll is supplied to the lower right rotation support shaft 14a at an appropriate timing. By repeating these processes, automatic joining / supplying of the belt-like film can be performed.

  In the above embodiment, the splicer for the belt-like film for forming the pocket portion of the PTP sheet has been described. However, the splicer for the upper film may be used, and it may be applied as a splicer for various other packaging machines. it can. Furthermore, various materials can be used for the film.

3, 3a, 3b, 3c Strip films 15a, 15b, 15c Original roll 18a First roller 18b Second roller 19 Drive roller 20 Drive motor 21 Support plate 23 Movable guide member 23
25 Receptacle 26 Transfer Device 26a First Vacuum Part 26b Support Arm 26c Second Vacuum Part 28 Bonding Film 33 Roller 34 Fixed Guide Member

Claims (3)

Cut one end of the film to be bonded over the entire width to create a strip-shaped bonding film,
Set the back end of the film being supplied to the packaging machine and the front end of the spare film butted together,
Inverting the bonding film so that the non-coating surfaces that can be sealed face each other, and arranged so as to straddle the both films, and both end portions of the films and the bonding film are sandwiched and bonded together by a sealer. The film automatic bonding method in the packaging machine. A joining film creating means for creating a strip-shaped joining film by cutting the tip of the film fed out from the preliminary raw roll,
Means for setting the rear end of the film being supplied to the packaging machine and the front end of the preliminary film after making the bonding film in a state of abutting each other;
A transfer means for receiving the joining film created by the joining film creating means and arranging the joining film so as to straddle both films while allowing the non-coating surfaces of the joining film to face each other.
Sealing means for heat-sealing the ends of the two films and the bonding film;
A splicer characterized by comprising:   The transfer means receives the bonding film created by the bonding film creation means and transfers the bonding film to a delivery position, and the bonding held by the first transfer means that has moved to the delivery position. The splicer according to claim 2, further comprising: a second transfer unit configured to receive the bonding film and to arrange the received bonding film so as to straddle both the films.

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