JP2020090311A - Paper splicing method of bag-manufacturing filling and packaging machine, and bag-manufacturing filling and packaging machine to which paper splicing method can be applied - Google Patents

Abstract

To provide a paper splicing method of a bag-manufacturing filling and packaging machine which has improved paper splicing work for connecting both old and new strip packaging materials by achieving paper splicing while directly confirming picture patterns on a surface of a new packaging material roll held in a roll holder, and to provide a bag-manufacturing filling and packaging machine to which the paper splicing method can be applied.SOLUTION: In a state where a function of tension imparting to a strip packaging material Fw by a dancer roller mechanism of a bag-manufacturing filling and packaging machine is released, an old strip packaging material Fwo is drawn back onto a new packaging material roll Frn. A starting end Fwns of the new strip packaging material Fwn from the new packaging material roll Frn and a terminal end Fwoe of the drawn-back old strip packaging material Fwo are abutted against each other on the surface of the new packaging material roll Frn. In both old and new strip packaging materials, the surface sides on which picture patterns are drawn appear on the surface side, and on the surface of the new packaging material roll Frn, both picture pattern portions on the terminal end side and the starting end side are abutted against each other while being visually observed directly, and in an abutted state of the picture patterns, both end parts are connected with an adhesive tape T.SELECTED DRAWING: Figure 5

Description

The present invention is a bag-filling and packaging machine for forming a packaging bag from a strip-shaped packaging material such as a web-shaped packaging film, filling and accommodating and packaging the product to be packaged in the packaging bag. The present invention relates to a paper splicing method used for connecting a new strip-shaped packaging material to a strip-shaped packaging material such as when reaching the end, and a bag-making filling and packaging machine to which the paper splicing method can be applied.

Conventionally, the strip-shaped packaging material is unwound from a packaging roll that has been wound up with a strip-shaped packaging material such as a strip-shaped film, and the strip-shaped packaging material that has been unwound is passed through a cylinder-making device to be bent into a substantially tubular shape. Forming a tubular wrapping material by sealing both side edges of the band-shaped wrapping material sent by a center sealer, supplying the product into the tubular wrapping material through a cylinder maker, and applying an end seal to the tubular wrapping material. There is known a bag-making filling and packaging machine that fills and wraps a product in a packaging bag while manufacturing the packaging bag. As a bag-making filling and packaging machine, a vertical bag-making filling and packaging machine in which a tube-making device is placed vertically and the product is put into the tubular packaging material from above, or a product in which the tube-making device is placed horizontally is used. There is a horizontal bag-making filling and packaging machine in which is fed into a tubular packaging material by a supply conveyor.

In the bag-making filling and packaging machine, for example, when the feeding of the band-shaped packaging material from the packaging material roll approaches the winding end, the operation of the bag-making filling and packaging machine is usually stopped, and cut near the winding end. A strip-shaped packaging material (referred to as "old strip-shaped packaging material") is connected to a strip-shaped packaging material (referred to as "new strip-shaped packaging material") from a new packaging material roll (referred to as "new packaging material roll") "Paper splicing" work), and the operation of the packaging machine is restarted using the connected strip-shaped packaging material. Registration marks for packaging control are printed on the strip-shaped packaging material at intervals of the length of the packaging bag in the lengthwise direction. In addition, as the printing on the band-shaped packaging material, usually, a printing (referred to as a “pattern”) for product description/advertisement or legal display is provided on a predetermined portion of the surface of the packaging bag. It is repeated every time.

Specifically, the paper splicing operation is performed by placing the end of the old strip-shaped packaging material formed by cutting on the paper splicing table (paper connecting plate), and on the paper splicing table, the new strip-shaped packaging at the end. By aligning the starting end of the material (the original starting end of the new packaging material roll or the starting end formed by cutting) and connecting the ends of both the old and new strip-shaped packaging material with a connecting tape such as adhesive tape Done.

In the paper splicing work in which both the old and new strip-shaped wrapping materials are connected with a connecting tape, the ends of the old and new strip-shaped wrapping materials are misaligned in order to restart the packaging machine smoothly after the splicing. It is preferable that they are connected in a straight and uniform manner without causing bending or bending. Therefore, the paper splicing work is performed by, for example, adsorbing the new and old strip-shaped packaging materials placed on the paper splicing table in the same direction and position on the paper splicing table so that their ends do not move. It is fixed by pressing it on the paper splice table with a rubber magnet.

Conventionally, in a bag-making filling and packaging machine 50 (abbreviated as "packaging machine 50") as shown in FIG. 6, a dancer roller mechanism 62 is used to perform band-shaped packaging in a packaging material feeding portion 11a for feeding the band-shaped packaging material Fw from a packaging material roll Fr. By allowing the amount (length) of feeding the material Fw to have a margin (counting), the length of the band-shaped packaging material Fw consumed by the packaging machine unit 12a of the packaging machine 50 is prepared for fluctuations. The dancer roller mechanism 62 includes a movable dancer roller 62m supported by a weight lever 64 that swings around a swing shaft 65, and a fixed guide roller 62f whose position is fixed to a device frame (not shown). The above-mentioned dragging is caused by winding the strip-shaped packaging material Fw around the rollers 62m and 62f so as to be sewn. By applying the weight of the dancer roller 62m and the weight lever 64 to the strip-shaped packaging material Fw wound around the dancer roller mechanism 62, tension is applied to the strip-shaped packaging material Fw to stabilize the feeding and feeding of the strip-shaped packaging material Fw. Has been secured. The state in which tension is applied to the strip-shaped packaging material Fw by the weight is shown by the weight lever 64 and the strip-shaped packaging material Fw drawn by imaginary lines.

On the downstream side of the dancer roller mechanism 62 (downstream of the feeding of the band-shaped packaging material Fw), a printing device 61 for printing the packaging date (expiration date) and the like is provided. Since the printing position on the packaging bag B is predetermined according to the packaging bag B, the printing position when the printing device 61 prints on the passing band-shaped packaging material Fw is the predetermined printing position on the packaging bag B. When there is a deviation, the position of the adjusting roller 68 is changed so that the deviation is eliminated. The adjusting roller 68 is a roller arranged above the printing device 61, and its position can be adjusted in the vertical direction with respect to the device frame. By changing the position of the adjusting roller 68 (for example, pulling it up), the position of the design pattern of the strip-shaped packaging material Fw passing through the printing device 61 at the time of printing is adjusted (the design pattern is moved upward with respect to the printing device 61). Can be moved). Further, by adjusting the vertical position of the adjust roller 68 (the adjustment range is shown by an imaginary line in FIG. 6), the length of the strip-shaped packaging material Fw fed from the packaging material roll Fr to the packaging machine portion 12a is It is also possible to adjust within a relatively large range. The guide roller 63 arranged at a proper position defines a traveling route for the strip-shaped packaging material Fw, and the strip-shaped packaging material Fw travels and is guided along this traveling route. In addition, as will be described later with reference to FIG. 7, reference numeral 51 is a cylinder making device that bends the strip-shaped packaging material Fw into a substantially cylindrical shape, and reference numeral 53 is a filling cylinder (filling cylinder) into which the product S is introduced and filled. ), reference numeral 54 is a lateral sealing/cutting device that seals/cuts a tubular packaging material Ft formed in a tubular shape from the strip packaging material Fw in the transverse direction.

The paper splice table 66 used to connect the old strip-shaped packaging material Fwo and the new strip-shaped packaging material Fwn is arranged between the packaging material roll Fr and the dancer roller mechanism 62 when viewed along the feeding path of the packaging material. ing. The paper splicing table 66 is arranged at a rear position of the packaging material roll Fr and obliquely downward so that an operator standing directly opposite to the packaging material roll Fr can easily perform the paper splicing work. The new strip-shaped packaging material Fwn fed from the packaging material roll Fr is spliced to the old strip-shaped packaging material Fwo on the paper splicing stand 66. The splicing is performed by connecting the end of the old strip-shaped packaging material Fwo and the start end of the new strip-shaped packaging material Fwn placed on the splicing table 66 with a tape or the like.

When the new strip-shaped packaging material Fwn is spliced to the old strip-shaped packaging material Fwo, the paper is spliced through the following steps (1) to (5), which requires a lot of man-hours and time for the splicing work.
(1) The old strip-shaped packaging material Fwo is fixed on the paper splice table 66 in such a position that the registration mark of the old strip-shaped packaging material Fwo does not interfere with the tape bonding position (that is, the sensor causes In order to avoid that the registration mark cannot be detected, the old strip-shaped packaging material Fwo is aligned at the position where the registration mark position is removed on the paper joint table 66).
(2) The old strip-shaped packaging material Fwo is cut by moving the cutter along the cutter groove 67 on the paper joint table 66.
(3) The new strip-shaped packaging material Fwn is aligned and fixed so that the pattern thereof matches the pattern of the old strip-shaped packaging material Fwo.
(4) The new strip-shaped packaging material Fwn is cut at the position where the patterns are matched.
(5) Both ends, which are formed by cutting the old and new band-shaped packaging materials Fwo and Fwn, are pasted together with a tape or the like.

As described above, conventionally, in the paper splicing of the band-shaped packaging material, the new band-shaped packaging material Fwn is connected to the old band-shaped packaging material Fwo by using the paper splicing table 66 for connecting the packaging material provided in the traveling path of the packaging material. It is done by connecting with tape. However, in this paper splicing method, the side that the operator who performs the paper splicing operation sees on the paper splice table 66 is the back side of the strip-shaped packaging material, and the surface side on which the pattern is drawn faces the paper splice table 66 side. Therefore, when the strip-shaped packaging material is a packaging material such as an aluminum vapor-deposited film in which the opposite surface side is transparent and invisible, it is difficult to pattern the old and new strip-shaped packaging materials. Further, when the old and new strip-shaped packaging materials are pasted together with a tape, in order to prevent the patterns of both packaging materials from being displaced on the paper splicing table 66, the old and new strips such as a magnet or a suction device are attached to the paper splicing table 66. It was necessary to provide a holding device for holding the band-shaped packaging material.

The applicant of the present invention has found that in the paper splicing tape cutting step, the paper splicing tape having an adhesive surface on one side has a splicing length in which an excess tape portion is left at both ends of the main tape portion corresponding to the strip width of the strip-shaped packaging material. Then, in the paper splicing tape pressing step, the cut paper splicing tape is pressed onto the paper splicing base by the tape setting member with the adhesive surface facing upward and from above both surplus tape portions. In the packaging material end portion attaching process, the end and start ends of the old and new strip-shaped packaging materials are attached to the paper joining tape separately in the width direction, and then in the paper joining tape peeling step, Adhesion between the paper splicing tape and the tape setting member in the surplus tape portion is peeled off, and in the folding step of the surplus tape portion, both surplus tape portions that have been delaminated from the tape setting member are attached to the paper splicing tape. The strip-shaped packaging material is folded back and pasted on the end and start ends of both strip-shaped packaging materials, and the paper joining method of the strip-shaped packaging material, and the end edge of the old strip-shaped packaging material and the new strip-shaped packaging on the paper splicing stand. A paper splicing device that joins the starting ends of the materials with a paper splicing tape, and one side cut to a paper splicing length with surplus tape portions on both ends of the main tape portion corresponding to the strip width of the strip-shaped packaging material. The paper splicing tape having an adhesive surface is provided with a pair of tape setting members that are respectively adhered in the respective surplus tape portions, and the tape setting member is such that the cut out paper splicing tape is adhered on the adhesive surface. With the standby position where the tape can be attached and the longitudinal direction of the paper splicing tape aligned with the band width direction of the strip-shaped wrapping material with the adhesive surface facing upward, the paper splicing tape is formed into the paper splicing at both the excess tape portions. It is movable from above the table to a work position where it is pressed onto the paper splicing table, and when the tape setting member occupies the work position, the end end of the old strip-shaped packaging material and the new strip-shaped packaging material. When the starting end of the tape setting member is attached to the paper splicing tape separately in the width direction of the paper splicing tape, and the tape setting member from which the adhesiveness with the excess tape portions has been removed is returned to the standby position. In the paper splicing device for strip-shaped packaging material, the excess tape portions are folded and pasted onto the end end and the start end of the strip-shaped packaging material attached to the paper splicing tape. Has been proposed (see Patent Document 1).

According to the method and the device for splicing the strip-shaped packaging material in which the splicing is performed, the spliced tape has a splicing length in which excess tape portions are left at both ends of the main tape portion corresponding to the strip width of the strip-shaped packaging material. It is possible to easily press the paper splicing tape on the paper splicing table by cutting out the paper splicing tape and pressing the paper splicing tape on the paper splicing table by the tape setting member in the excess tape portion. Then, the ends (end end and start end) of both the old and new strip-shaped wrapping materials are attached to the adhesive surface of the splicing tape, and both excess tape parts peeled from the tape setting member are folded back and attached to the end end and the start end. Thus, regardless of the width dimension and the material of the strip-shaped packaging material, it is possible to easily splice both the old and new strip-shaped packaging materials on the paper splicing stand.

JP, 2016-204108, A

Therefore, regarding paper splicing in a bag-making filling and packaging machine, a new packaging material roll that is loaded and held in a roll holder when splicing both old and new strip-shaped packaging materials when the packaging material has been used up There is a problem to be solved in that it is possible to easily perform a paper splicing on the surface by using the surface.

An object of the present invention is to solve the above-mentioned problems, and using a new packaging material roll held by a roll holder for a paper splicing work for connecting both old and new strip-shaped packaging materials, a pattern is formed on the surface. It is possible to provide a bag-making filling and packaging machine to which the paper-splicing method can be applied and the paper-splicing method in the bag-making filling and packaging machine that can improve the paper splicing workability while directly checking. ..

The paper splicing method in the bag making filling and packaging machine according to the present invention,
A roll holder that holds a packaging material roll around which the strip-shaped packaging material is wound, and a dancer roller mechanism that stores the strip-shaped packaging material fed from the packaging material roll and that has a function of applying tension to the strip-shaped packaging material. And a packaging machine section that forms a packaging bag from the strip-shaped packaging material fed from the packaging material feeding portion, and fills/wraps the product to be packaged in the packaging bag. The bag-making filling and packaging machine in which the feeding direction of the strip-shaped packaging material from the packaging material roll held by the roll holder is a direction in which the stripping packaging material is pulled down from the front upper side of the operator facing the packaging material roll. At
Release the function of tensioning the band-shaped packaging material that the dancer roller mechanism played,
The end of the strip-shaped packaging material fed from the packaging material roll is formed at a position upstream of the dancer roller mechanism,
A new packaging material roll (hereinafter, this packaging material roll is referred to as a "new packaging material roll") is loaded and held in the roll holder instead of the old packaging material roll,
Pulling back the strip-shaped packaging material with the terminal end formed (hereinafter, this strip-shaped packaging material will be referred to as "old strip-shaped packaging material") in a manner of pulling the new packaging material roll from the lower side to the front upper side,
A start end of a new strip-shaped packaging material (hereinafter referred to as "new strip-shaped packaging material") to be unrolled from the new packaging material roll and the end of the old strip-shaped packaging material pulled back to the new packaging material roll. And on the surface of the new packaging roll.

This bag-making filling and packaging machine is provided with a packaging material feeding section and a packaging machine section, and in the packaging material feeding section, the strip-shaped packaging material fed from the packaging material roll is distributed between a plurality of rollers constituting the dancer roller mechanism. A certain length is stored by being wrapped around in a sewn manner, and tension is applied to the strip-shaped packaging material by the weight of the dancer roller mechanism. By accumulating the band-shaped packaging material in the dancer roller mechanism, it is possible to cope with fluctuations in consumption of the band-shaped packaging material in the packaging machine section, and by applying tension by the dancer roller mechanism, The feeding of the band-shaped packaging material and the feeding to the packaging machine section are stable without causing meandering or slack. In the packaging machine section, a packaging bag is formed by forming a packaging bag from the strip-shaped packaging material fed from the packaging material feeding section, and the product to be packaged is filled and packaged in the packaging bag to manufacture a bag package. The packaging material roll, which is the supply source of the packaging material, originally takes up the band-shaped packaging material on which the pattern is printed, around the central core tube in such a manner that the front side of the packaging material appears on the front side and the sealing surface on the back side is on the inside. It is a thing. In this bag-making filling and packaging machine, the unwinding direction of the strip-shaped packaging material from the packaging material roll held by the roll holder is determined by the operator who is looking at the operator who is loading the packaging material roll or joining the paper. This is the direction to pull down from the upper side to the lower side when facing the roll.

With respect to the dancer roller mechanism, when the packaging material is spliced, the function of applying tension to the strip-shaped packaging material, which has been performed by the dancer roller mechanism, is canceled. This is because the strip-shaped wrapping material does not behave in an unfavorable manner when the strip-shaped wrapping material is cut to splice the paper or the strip-shaped wrapping material is peeled from the core tube to form an end. This is to facilitate the subsequent handling of the strip-shaped packaging material. That is, if the function of the dancer roller mechanism is not cancelled, the tension acting on the strip-shaped packaging material immediately before the strip-shaped packaging material is lost at the time of forming the end of the strip-shaped packaging material, but nevertheless the dancer roller mechanism tries to continue applying tension. Due to this movement, the packaging material stored in the dancer roller mechanism hangs down and becomes unlimited, and then the troublesome operation of pulling up the old strip-shaped packaging material with the end formed to the original position is required. .. Even if the old strip-shaped packaging material is pulled up to its original position, tension is applied by the dancer roller mechanism when it is pulled back to the new packaging material roll, so the old strip-shaped packaging material must be pulled back against such tension. .. In the present invention, by canceling the function of applying tension to the band-shaped packaging material by the dancer roller mechanism, the portion of the old band-shaped packaging material left in the dancer roller mechanism as a dragged state at the time of releasing the tension-providing function is the original. The dancer roller mechanism is maintained in the position and does not further hang down due to the operation of continuing the tensioning of the dancer roller mechanism. Further, even after the end is formed, when the old strip-shaped packaging material is pulled back in the direction of the packaging material roll, the dancer roller mechanism does not apply a tension action, so that it can be pulled back smoothly, and the old strip-shaped packaging material is easily handled. .. The direction in which the old strip-shaped packaging material is pulled back is the direction in which the operator pulls the packaging material roll newly held by the roll holder from the lower side to the front upper side when directly facing the packaging material roll.

When forming a terminating end on the strip-shaped wrapping material that is fed from the wrapping material roll and is supplied to the wrapping machine section through the dancer roller mechanism and extends when the wrapping material is spliced, the end forming position to be indexed for the wrapping material. Is positioned upstream of the dancer roller mechanism. The strip-shaped packaging material having the end formed and remaining on the packaging machine side is the old strip-shaped packaging material. The old packaging material roll that has been loaded until then is removed from the roll holder, and the roll holder is loaded and held with the new packaging material roll in which the new strip-shaped packaging material to be spliced is wound. The beginning of the new strip of packaging is usually on the surface of the packaging roll.

Next, the old strip-shaped packaging material is pulled back from the lower side of the new packaging material roll from the lower side to the upper side. Since the dancer roller mechanism does not apply tension to the old strip-shaped packaging material, the old strip-shaped packaging material can be easily pulled back to the new packaging material roll without a feeling of resistance due to the tension. On the new packaging material roll, the feeding direction of the new belt-shaped packaging material and the direction in which the old belt-shaped packaging material is sent to the packaging machine section again (counter pullback direction) are the same, and the new packaging material roll is fed from the new packaging material roll. The start end of the strip-shaped packaging material and the end of the old strip-shaped packaging material pulled back onto the new packaging material roll can be abutted on the surface of the new packaging material roll.

The new packaging material roll, in which the new strip-shaped packaging material is wound, has a large roll diameter, especially in the case of an unused packaging material roll, and has a pattern drawn on the surface that is the outside of the bag and It is not flat but has a relatively large surface. When the end of the old strip-shaped packaging material and the start of the new strip-shaped packaging material are butted against each other, the front side of the old strip-shaped packaging material and the new strip-shaped packaging material on which the pattern is drawn appears on the front side on the surface of the new packaging material roll. Therefore, the operator can directly visually check and match the end-side pattern portion and the start-side portion on the relatively wide surface of the new packaging material roll. The start end of the new strip-shaped packaging material to be fed out from the new packaging material roll and the end of the old strip-shaped packaging material pulled back onto the new packaging material roll are connected on the surface of the new packaging material roll to perform paper splicing.

In the paper splicing method in this bag-making filling and packaging machine, the dancer roller mechanism includes a fixed guide roller whose mounting position is fixed, and a movable dancer roller that can approach and separate from the fixed guide roller. When the movable dancer roller is separated from the fixed guide roller, the movable dancer roller has a function of accumulating the band-shaped wrapping material and applying tension to the band-shaped wrapping material, and brings the movable dancer roller close to the fixed guide roller. As a result, the function of applying the tension is released from the state of applying the tension to the band-shaped packaging material by the dancer roller mechanism, and when the function of applying the tension by the dancer roller mechanism is in the released state, the old band-like shape is released. The pulling back of the packaging material to the new packaging material roll can be performed by applying from the amount of the old band-shaped packaging material that has been generated in the dancer roller mechanism.
The movable dancer roller can be operated by an actuator such as an air cylinder that drives and stops and holds the movable dancer roller. In this case, such an actuator serves as a release holding means capable of air operation. When the moving operation of the movable dancer roller is manual, the tensioning function is released by the manually operable means such as the locking means and the locking means that can keep the movable dancer roller in its state when the movable dancer roller is lifted. The state can be maintained. In this case, the locking means, the locking means, etc. serve as a release holding means that can be manually operated. When the movable dancer roller separates from the fixed guide roller, the amount of wrapping of the band-shaped packaging material that is sewn between these rollers increases, whereby the band-shaped packaging material is stored, and the band-shaped packaging material is stored. Tension can be applied. When the movable dancer roller is brought close to the fixed guide roller to release the tensioning function of the dancer roller mechanism, the amount of stripping of the strip-shaped packaging material generated in the dancer roller mechanism is the old strip-shaped packaging material with the end formed. Is the amount that can be pulled back onto the new packaging material roll. That is, the amount of pullback of the old strip-shaped packaging material to the new packaging material roll can be applied from the amount of dragging generated in the dancer roller mechanism. If the pullback amount of the strip-shaped packaging material is not applied from the amount of pour in the dancer roller mechanism, the strip-shaped packaging material is removed from the old packaging material roll remaining in the roll holder after the operation of the packaging machine unit is stopped and before the end of the strip-shaped packaging material is formed. It is necessary to additionally feed and then terminate, or to feed back the strip-shaped packaging material already supplied from the dancer roller mechanism to the packaging machine section and terminate it, but this is not necessary in the present paper joining method. That is, in order to determine the end forming position of the band-shaped packaging material, it is not necessary to perform the feeding operation of the roll holder after the operation of the packaging machine section is stopped, or to perform the feeding-back operation of the band-shaped packaging material in the packaging machine section.

In the paper joining method in this bag-making filling and packaging machine, when the old strip-shaped packaging material is pulled back onto the new packaging material roll, the end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material are set to the new one. The end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material, which are properly butted against each other on the surface of the packaging material roll, can be joined to each other on the back surface side of the packaging material with an adhesive tape.
The end of the old strip-shaped wrapping material and the start of the new strip-shaped wrapping material are in a butt state where their pattern is confirmed on the peripheral surface of the new wrapping material roll. By connecting the end and the start end in the abutted state on the peripheral surface of the new packaging material roll with a means such as an adhesive tape, the old and new strip-shaped packaging materials are in a pattern in which the pattern pattern is correctly continuous. Paper is spliced. The adhesive tape can be prepared, for example, on the user side of the bag-making filling and packaging machine.

In the paper splicing method in this bag-making filling and packaging machine, in the new packaging material roll on standby before being loaded in the roll holder, at the start end of the new strip-shaped packaging material wound around the new packaging material roll. The adhesive tape can be attached in advance. In the new packaging material roll, by sticking the adhesive tape to the start end of the new strip-shaped packaging material in advance, it is possible to simplify the step of applying the adhesive tape at the time of paper splicing. In this case, if there is an exposed adhesive surface of the adhesive tape, you can protect the adhesive surface by attaching a peeling tape for protecting the adhesive surface to the adhesive surface, and at the time of paper splicing, remove the adhesive tape from the adhesive tape. Can be peeled off and the end of the old strip-shaped packaging material can be attached to the adhesive surface.

In the paper joining method in the bag-making filling and packaging machine in which the adhesive tape is attached in advance to the new strip-shaped packaging material, the standby new packaging material roll is a new packaging material roll mounted on a packaging material roll carriage, Alternatively, it can be a new packaging material roll held by a roll holder different from the roll holder included in the packaging material feeding portion. The packaging material roll cart is a cart on which a heavy packaging material roll can be placed and which can transport the packaging material roll from, for example, its storage location to a packaging machine. In any case, at the beginning of the new strip-shaped packaging material wound as a new packaging material roll, attach the adhesive surface of the adhesive tape to the inner surface that is the sealing surface on the back side of the packaging material. By sticking the tape, the sticking tape can be prepared in advance on the new packaging material roll.

In the paper splicing method in a bag-making filling and packaging machine that splices paper with this adhesive tape, the adhesive tape is cut into a paper splicing length that is longer than the strip width of the old strip-shaped packaging material and the new strip-shaped packaging material. And the excess tape portions protruding from both side edges of the old strip-shaped packaging material and the new strip-shaped packaging material by the adhesive tape are respectively the end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material. It can be folded back and attached to the surface side of the packaging material.
Regarding the adhesive tape, both ends of the tape length are made to protrude partially from both side edges of the band-shaped packaging material in the band width direction, and the protruding two excess tape parts correspond to both side edges in the band width direction. It can be folded back at each position and attached to the front surface of the band-shaped packaging material. By folding back the excess tape and pasting it on the front side of the strip-shaped wrapping material, the edges of both the old and new strip-shaped wrapping materials are protected at both ends in the strip width direction, and the connection between the new and old strip-shaped wrapping materials is ensured. Can be The folded back length is preferably half or less of the band width of the strip-shaped packaging material so that the folded back excess tape portions do not overlap with each other. Also in the width direction of the tape, it is preferable that the tapes are not attached to one of the strip-shaped packaging materials in a biased manner, but half of the tape in the width direction is attached to both the old and new strip-shaped packaging materials.

In the paper splicing method in this bag-making filling and packaging machine, of the adhesive tape that has attached the starting end of the new strip-shaped packaging material to the surface of the new packaging material roll, the portion that was attached to the new packaging material roll Peel from the new packaging material roll, by sticking the portion of the peeled adhesive tape to the end of the old strip-shaped packaging material in a state of being abutted with the start end of the new strip-shaped packaging material, the adhesive tape It can be used as the adhesive tape. The part of the adhesive tape that has been attached to the surface of the new wrapping material roll at the starting end of the new wrapping material may remain attached to the portion attached to the beginning end of the new wrapping material. The part of the adhesive tape which is peeled off from the new packaging material roll is affixed to the end of the old strip-shaped packaging material in a state where it is abutted against the starting end of the new strip-shaped packaging material to form a continuous pattern. The adhesive tape that has been used for attaching the starting end in advance in the new packaging material roll can be used for splicing without discarding it.

In the paper splicing method in this bag-making filling and packaging machine, the same pattern is drawn on the strip-shaped packaging material at each pitch of the length of the packaging bag, and the old strip-shaped packaging material is predetermined in the design pattern. If the pattern is finished at the predetermined pattern matching position on the winding end side of the packaging material roll onto the core tube, the strip-shaped packaging material is cut. The end of the old strip-shaped packaging material is formed by peeling the strip-shaped packaging material from the core tube of the packaging material roll, and the new strip-shaped packaging material wound on the new packaging material roll is placed in the predetermined pattern matching position. Or, the start end of the strip-shaped packaging material of the packaging material roll is manufactured by winding the strip-shaped packaging material and the predetermined pattern matching position in the design pattern as the start end. By setting the starting end of the new strip-shaped packaging material as it is, the starting end of the new strip-shaped packaging material can be formed.
Regarding the end of the old strip-shaped packaging material, the strip-shaped packaging material is cut at a predetermined pattern matching position in the pattern, or the pattern is predetermined on the winding end side of the packaging material roll around the core tube. When the band-shaped wrapping material has been finished at the pattern matching position, the band-shaped wrapping material is peeled off from the core tube of the wrapping material roll, whereby the position where the end is formed can be set at a position corresponding to the start end of the new band-shaped wrapping material. By determining the position of the end formation of the strip-shaped packaging material in this way, when the end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material are abutted on the new packaging material roll, the pattern portion on the end side naturally And the part of the design pattern on the starting end side are correctly connected, and both parts of the design pattern when connected are the same as the original design pattern of the strip-shaped packaging material. When the picture pattern ends at the picture pattern matching position, the belt-shaped packaging material is wound around the core tube of the packaging material roll so that the edge is exactly at the picture pattern matching position and the picture pattern begins. It may be wound up, or may be wound up so that the picture pattern starts from the picture pattern matching position after a predetermined unpatterned portion continues from the core tube of the packaging material roll.
Regarding the start end of the new strip-shaped packaging material, the user of the bag-making filling and packaging machine determines the position to be the start end of the new strip-shaped packaging material, and at that position the new strip-shaped packaging material is wound. A roll of packaging material in which the starting position of the packaging material roll is the same position by designating the cutting position in advance in order to facilitate pattern matching after cutting , And such a packaging material roll can be used as it is. In particular, if the new packaging material roll is a one-time-use packaging material roll, before cutting the old strip-shaped packaging material, at the same pattern position as the end of the old strip-shaped packaging material or in the vicinity thereof, and a margin. It is desirable to cut the new strip-shaped packaging material of the new packaging material roll once at the position on the side where there is a mark and set it as the starting end.
The above aspect of forming the end of the old strip-shaped packaging material and the above aspect of forming the start end of the new strip-shaped packaging material can be arbitrarily combined.

This invention is a bag-making filling and packaging machine to which the above paper joining method is applicable,
A roll holder that holds a packaging material roll around which the strip-shaped packaging material is wound, and a dancer roller mechanism that stores the strip-shaped packaging material fed from the packaging material roll and that has a function of applying tension to the strip-shaped packaging material. And a packaging machine section that forms a packaging bag from the strip-shaped packaging material fed from the packaging material feeding portion, and fills/wraps the product to be packaged in the packaging bag. The bag-making filling and packaging machine in which the feeding direction of the strip-shaped packaging material from the packaging material roll held by the roll holder is a direction in which the stripping packaging material is pulled down from the front upper side of the operator facing the packaging material roll. At
The packaging material feeding section includes a release holding means for holding the function of storing the band-shaped packaging material and applying tension to the band-shaped packaging material in a released state,
The strip-shaped packaging material (hereinafter, this strip-shaped packaging material is referred to as "old strip-shaped packaging material") whose end is formed at a position upstream of the dancer roller mechanism and a new packaging material roll loaded in the roll holder. (Hereinafter, this packaging material roll is referred to as "new packaging material roll.") The new strip-shaped packaging material (hereinafter, this strip-shaped packaging material is referred to as "new strip-shaped packaging material") is the new packaging material roll. On the surface of the new wrapping material from the lower side to the upper side of the new wrapping material roll when the starting end of the new wrapping material and the function of applying the tension of the dancer roller mechanism are in the released state by the release holding means. The end of the old strip-shaped packaging material pulled back in the pulling-up state is joined together in an abutted state.

According to this bag-making filling and packaging machine, as in the case of the above invention of the paper joining method, the function of applying tension to the band-shaped packaging material by the dancer roller mechanism and its cancellation, loading of the new packaging material roll into the roll holder, Pulling back the old strip-shaped packaging material to the new packaging material roll side, both ends of both old and new strip-shaped packaging material on the surface of the new packaging material roll and on the front side of the strip-shaped packaging material (particularly, the pattern drawn on the front side) Butting is performed while visually observing, and joining of both ends is performed. In addition, in the paper splicing work that connects both old and new strip-shaped packaging materials, using the new packaging material roll held by the roll holder, while directly checking the front side (pattern pattern) of the strip-shaped packaging material on the surface, It is possible to improve the workability of paper splicing by enabling splicing.

In this bag-making filling and packaging machine, the dancer roller mechanism includes a fixed guide roller whose mounting position is fixed, and a movable dancer roller that can approach and separate from the fixed guide roller. Has a function of storing the band-shaped wrapping material and applying the tension to the band-shaped wrapping material when separated from the fixed guide roller, and the dancer roller mechanism from the state of applying the tension to the band-shaped wrapping material. When the function of applying the tension is released, the dancer roller mechanism has a stripping amount of the strip-shaped packaging material that is equal to or larger than the pullback amount when the old strip-shaped packaging material is pulled back onto the new packaging material roll. The release holding means can hold the function of applying the tension to the strip-shaped packaging material of the dancer roller mechanism in a released state when the movable dancer roller approaches the fixed guide roller. It is possible that the old strip-shaped packaging material can be pulled back to the new packaging material roll in the released state by the means.
When the movable dancer roller is separated from the fixed guide roller, the amount of wrapping of the band-shaped wrapping material that is sewn between these rollers is increased to store the band-shaped wrapping material, and the tension to the band-shaped wrapping material is increased. Can be given. When the dancer roller mechanism releases the tensioning function from the state where tension is applied to the strip-shaped packaging material, the amount of drag that is generated in the dancer roller mechanism is the cut old strip-shaped packaging material up to the new packaging material roll. It is the amount that can be pulled back. When the function of applying tension to the strip-shaped packaging material by the dancer roller mechanism is held in the released state by the release holding means, the old strip-shaped packaging material can be pulled back to the new packaging material roll. At this time, the pullback amount (length) of the old strip-shaped packaging material to the new packaging material roll is applied from the amount of dragging generated in the dancer roller mechanism. Therefore, it is possible to determine a proper cutting position for the strip-shaped packaging material without performing additional feeding or feeding-back operations of the strip-shaped packaging material.

With this bag-making filling and packaging machine, the formation of the end of the old strip-shaped packaging material and the start of the new strip-shaped packaging material, and the connection with adhesive tape, etc. are the same as in the case of the paper splicing method in the bag-making filling and packaging machine. It can be carried out. Regarding the formation of the end of the old strip-shaped packaging material and the start of the new strip-shaped packaging material, the strip-shaped packaging material is drawn with the same pattern for each pitch of the length of the packaging bag, and the old strip-shaped packaging material is When cutting at a predetermined pattern matching position in the pattern, or when the pattern ends at the predetermined pattern matching position on the winding end side of the core roll of the packaging material roll. Forms the end of the old strip-shaped packaging material by peeling the strip-shaped packaging material from the core tube of the packaging material roll, and determines the new strip-shaped packaging material wound on the new packaging material roll in advance. Cutting at the specified pattern matching position, or the band of the packaging material roll manufactured by winding the band-shaped packaging material and starting at the predetermined pattern matching position in the pattern. By setting the starting end of the packaging material as the starting end of the new strip-shaped packaging material as it is, the starting end of the new strip-shaped packaging material can be formed.

According to the paper splicing method in this bag-making filling and packaging machine and the bag-making filling and packaging machine to which the paper splicing method is applicable, after forming the end of the old strip-shaped packaging material, the new strip-shaped packaging to be fed out from the new packaging material roll. The starting end of the material and the end of the old strip-shaped packaging material pulled back onto the new packaging material roll can be abutted on the surface of the new packaging material roll, in which case the operator can The end of the strip-shaped wrapping material and the start end of the new strip-shaped wrapping material can be butt-joined while visually observing. The new packaging material roll has a large roll diameter, and the peripheral surface is not a flat surface, but a relatively large surface, especially when it is an unused new packaging material roll. Since it does not rotate easily, it can be stably used as a pedestal for both ends of the old and new strip-shaped packaging materials when splicing paper. When a pattern is drawn on the strip-shaped packaging material, the front surface of the bag appears on the front side of the packaging material roll, so the operator can see the pattern on the end side of the old strip-shaped packaging material. The part and the pattern-shaped part on the starting end side of the new band-shaped packaging material can be directly and visually butted against each other. Both the old and new strip-shaped packaging materials are spliced together by a means such as an adhesive tape in a butting state where a picture pattern is confirmed on the surface of the new packaging material roll, that is, in a pattern (position) aligned state. ..

Regarding the pullback of the old strip-shaped packaging material to the new packaging material roll, it is possible to apply from the amount of the old strip-shaped packaging material that has been generated in the dancer roller mechanism, so when it is difficult to secure the pullback amount, There is no need to perform additional feeding or feeding back operation of the band-shaped packaging material. That is, after the operation of the packaging machine unit is stopped, it is necessary to perform further feeding operation of the belt-shaped packaging material from the roll holder before forming the end, and it is also necessary to perform the feeding-back operation of the belt-shaped packaging material in the packaging machine unit. Instead, a proper end forming position can be determined for the band-shaped packaging material.
Moreover, since preparation for applying the adhesive tape can be performed during operation of the bag-making filling and packaging machine, the time for stopping the packaging machine to connect the packaging materials can be minimized.
Further, since the function of applying the tension of the dancer roller mechanism is released at the time of splicing the paper, the tension does not act on the old strip-shaped packaging material and does not hinder the pulling back of the old strip-shaped packaging material.
Further, since the new and old strip-shaped packaging materials are spliced in a stable state using the surface of the new packaging material roll, not only the paper splicing stand used in the conventional paper splicing structure is unnecessary, but also the packaging A holding device such as a magnet or a suction device that holds the material on the paper splicing table is also unnecessary.

FIG. 1 is a side view showing an example of a bag-making filling and packaging machine to which the paper splicing method according to the present invention is applied. FIG. 2 is a schematic view showing an embodiment of the paper joining method in the bag making filling and packaging machine according to the present invention, focusing on the band-shaped packaging material and showing the paper joining steps in that order. FIG. 3 is a side view showing the paper joining process in that order, paying attention to the packaging material feeding portion of the bag-making filling and packaging machine to which the paper joining method according to the present invention is applied. FIG. 4 is a side view showing the continuation of the paper joining process shown in FIG. 3 in that order. FIG. 5 is a perspective view showing a joining process using an adhesive tape in the paper joining method in the bag-making filling and packaging machine according to the present invention. FIG. 6 is a diagram showing an example of a paper splice in a conventional vertical bag-making filling and packaging machine. FIG. 7 is a perspective view showing an example of a conventional vertical bag-making filling and packaging machine.

Hereinafter, with reference to drawings, an example of a paper joining method in a bag making filling packaging machine according to the present invention and a bag making filling packaging machine to which the paper joining method can be applied will be described. As a detailed example of the bag-making filling and packaging machine to which the present paper joining method can be applied, there is a vertical bag-making filling and packaging machine as shown in FIG. 7 as an example in a perspective view. Although the bag-making filling and packaging machine is shown as a vertical type, it is not limited to this. It may be a horizontal bag-making filling and packaging machine, or may be another type of bag-making filling and packaging machine that forms a bag from a packaging material fed from a packaging material roll and packages a product inside.

In the vertical bag-making filling and packaging machine 50 shown in FIG. 7 (hereinafter, abbreviated as “packaging machine 50” as in the case of the example shown in FIG. 6), the strip-shaped packaging material Fw is wound around a central core tube. The packaging material roll Fr is taken out, and the packaging material roll Fr is rotatably loaded in the roll holder 60 provided in the frame of the packaging machine 50. The strip-shaped packaging material Fw is delivered from the packaging material roll Fr by an appropriate delivery device and supplied to the former 51 in accordance with the packaging operation performed while the strip-shaped packaging material Fw is consumed in the packaging machine 50. The strip-shaped packaging material Fw sent to the former 51 is bent in a substantially tubular shape so that both end edge portions fe, fe are overlapped in a palm shape, and after passing through the former 51, the longitudinal direction (the feeding direction of the packaging material). While traveling, the vertical sealing device 52 applies vertical seals (vertical seals Sc) to both side edge portions fe, fe to form a tubular packaging material Ft. The vertical sealing device 52 is provided with a pair of vertical heat seal bars 52a and 52b that sandwich both side edge portions fe and fe and pressurize and heat. The product S, which is a package, is put into the cylindrical packaging material Ft through a hopper 58 having an opening 58a opened upward and a filling cylinder (filling cylinder) 53. A bag formed in advance and in which the product S is packaged by the lateral sealing/cutting device 54 by laterally sealing the tubular packaging material Ft in the lateral direction (direction intersecting the feeding direction of the packaging material). At the same time when the package Bp is manufactured, the bag B into which the product S is next put is formed. On the left and right sides of the outer periphery of the filling cylinder body 53, packaging material feeding devices 55, 55, which are suction belts for feeding the tubular packaging material Ft, are arranged.

The horizontal seal cut blocks 54a and 54b that constitute the horizontal seal/cut device 54 are members that operate so as to move toward and away from each other with respect to the tubular packaging material Ft, and a direction that traverses the tubular packaging material Ft when approaching. By sandwiching and pressing and heating, the lateral seal Se on the bottom side for the bag B and the lateral seal Se on the top side of the bag package Bp are formed. The horizontal sealing/cutting device 54 includes a cutter blade 56 that cuts the tubular packaging material Ft in a piercing manner. When both lateral seal cut blocks 54a and 54b approach each other, the upper and lower lateral seal portions sandwich the packaging material to weld the tubular packaging material Ft to form the lateral seal Se, and at the same time, to the one seal cut block 54a. The attached cutter blade 56 pierces the tubular wrapping material Ft and enters the groove 57 formed in the other seal cut block 54b, thereby separating the bag wrapping body Bp from the tubular wrapping material Ft. A printing device 61 that prints the date and the like on the surface of the strip-shaped packaging material Fw, a dancer roller mechanism 62 that secures a required length of storage of the strip-shaped packaging material Fw and applies tension, and a traveling path of the strip-shaped packaging material Fw. The guide roller 63 for guiding the guide and the adjusting roller 68 for adjusting the positions of the strip-shaped packaging material Fw are the same as those already described with reference to FIG. 6, and therefore the repetitive description is omitted here.

FIG. 1 is a side view showing an example of a bag-making filling and packaging machine in which the present paper joining method is used. The bag-making filling and packaging machine 10 (hereinafter, abbreviated as packaging machine 10) includes a packaging material feeding section 11 for feeding the belt-shaped packaging material Fw from the packaging material roll Fr on which the belt-shaped packaging material Fw is wound, and a fed belt-shaped feeding material. The packaging bag 12 is formed from the packaging material Fw, and the packaging machine section 12 is provided for filling and accommodating and packaging the product S to be packaged in the packaging bag B. The packaging machine unit 12 has the same structure as the packaging machine unit 12a of the conventional packaging machine 50 shown in FIG. 6, and the components of the packaging machine unit 12 are the same as those of the packaging machine unit 12a shown in FIG. By giving the same reference numerals to the elements, the repetitive description will be omitted.

The packaging machine 10 shown in FIG. 1 has a dancer roller mechanism 13 for storing the delivered strip-shaped packaging material Fw and providing a dancer roller mechanism 13 for applying a tension to the strip-shaped packaging material Fw, as shown in FIG. There is no difference from the illustrated packaging material feeding portion 11a of the conventional packaging machine 50. However, the packaging machine 10 is a paper for connecting a new strip-shaped packaging material Fw to the strip-shaped packaging material Fw fed from the packaging material roll Fr, which is used in the packaging material feeding portion 11a of the conventional packaging machine 50. No joint 14 is provided. In the dancer roller mechanism 13, a plurality of movable dancer rollers 13m are supported by a dancer arm 13a that can be swung around a swing shaft 13c, and a strip-shaped packaging material Fw includes a plurality of movable dancer rollers 13m and an apparatus frame ( A plurality of fixed guide rollers 13f whose positions are fixed (not shown) are sewn around and wound around. The band-shaped packaging material Fw is stored in the dancer roller mechanism 13 by being wound between the movable dancer roller 13m and the fixed guide roller 13f, and fluctuations in the consumption of the band-shaped packaging material Fw in the packaging machine unit 12 are caused by the dancer arm. It is absorbed as 13a swings. Further, the belt-shaped packaging material Fw is prevented from meandering and is stabilized by being applied with a tension based on the weight of the dancer arm 13a of the dancer roller mechanism 13 and the movable dancer roller 13m.

The strip-shaped wrapping material Fw wound around and guided by the fixed guide roller 13f installed at the final fixed position in the feed direction of the dancer roller mechanism 13 is arranged at the uppermost part of the wrapping material feeding part 11 so that its vertical position can be adjusted. The adjusting roller 18 is fed by a vertical traveling path Wup extending right above. Below the adjusting roller 18, the printing device 17 is arranged so as to face the surface of the strip-shaped packaging material Fw which is the outside of the bag. The printing device 17 performs predetermined printing on the outer surface of the strip-shaped packaging material Fw. The printing device 17 does not change its arrangement position while the same type of product is packaged without switching the band-shaped packaging material Fw.

By adjusting the adjusting roller 18 in the vertical direction, the strip-shaped packaging material Fw (cylindrical packaging material Ft) from the adjusting roller 18 to the packaging machine section 12 (in particular, the horizontal sealing/cutting device 54 at the reference position) is reached. The length can be adjusted, and when the pattern pattern is drawn on the strip-shaped packaging material Fw by printing or the like, the position of the pattern pattern on the strip-shaped packaging material Fw in the printing device 17 can be adjusted. Furthermore, by adjusting the position of the adjusting roller 18 when the strip-shaped packaging material Fw is cut at the time of paper splicing, particularly when the bag length is long, the position of the strip-shaped packaging material Fw in the vicinity of the registration mark is present. While avoiding the above, the feed stop position of the strip-shaped packaging material Fw can be adjusted so as to take a position suitable for cutting with respect to the pattern.

The wrapping machine 10 shown in FIG. 1 has a start of a strip-shaped wrapping material (called "new wrapping material") Fwn wound around a new wrapping material roll (called "new wrapping material roll") Frn before paper splicing. It is shown in a state where the strip-shaped wrapping material (referred to as “old strip-shaped wrapping material”) Fwo used in (1) is abutted against the end of Fwo and is spliced with the adhesive tape T. Although the paper splicing portion is exaggerated and a gap is shown in the figure, the paper splice portion is actually attached in a continuous state without a gap. The dancer roller mechanism 13 is shown by a solid line after the paper is spliced from a position (tension release position) in a state where the function of applying tension (hereinafter, referred to as “tension applying function”) is released as shown by an imaginary line. In this way, it is shown that the belt is lowered by its own weight and returned to the position (tensioning position) where the band-shaped packaging material Fw has a tensioning function. Therefore, the paper splicing portion spliced on the new packaging material roll Frn is fed from the new packaging material roll Frn and moved to the storage portion of the dancer roller mechanism 13.

2 to 4 are explanatory views showing an example of a paper joining method in the bag-making filling and packaging machine according to the present invention in transition of its working process. FIG. 2 shows the transition of the paper splicing work process, paying attention to the design pattern on the surface side of the strip-shaped packaging material when the design pattern is drawn on the strip-shaped packaging material. FIGS. 3 and 4 show the transition of the paper splicing work process when the packaging material feeding portion 11 is viewed from the side surface. FIG. 2A shows a picture pattern on the front surface side of the band-shaped packaging material, and the pattern pattern Pa is repeatedly printed on the outer surface of the band-shaped packaging material Fw at intervals corresponding to the length dimension L of the packaging bag. Is drawn. The registration mark Mr is printed on the strip-shaped packaging material Fw at the intervals. In the packaging machine section 12, based on the detection information of the registration mark Mr by the sensor, the feeding control of the band-shaped packaging material Fw, various operation controls of the packaging machine section 12 (sealing operation control such as vertical seal and horizontal seal, product Input control) is performed. The pattern matching at the time of splicing the paper is not actually displayed on the strip-shaped packaging material Fw, but for the sake of explanation, for example, the pattern matching position indicated by “a” in FIG. , Avoiding the position where it interferes with the adhesive tape that is pasted with a paper splice).

It is assumed that the feeding of the strip-shaped packaging material Fw from the packaging material roll Fr approaches the end, and a situation arises in which a paper splicing operation should be performed. At the time of paper splicing, first, the feeding of the strip-shaped packaging material Fw is stopped by stopping the operation of the packaging machine unit 12 or the feeding operation of the packaging material feeding unit 11. The appearance of the strip-shaped packaging material Fw in this state is the same as that shown in FIG. Further, the appearance of the packaging material feeding portion 11 is shown in FIG. Although the band-shaped packaging material Fw wound on the packaging material roll Fr is being consumed, the dancer roller mechanism 13 continues the function of applying tension to the band-shaped packaging material Fw.

Next, as shown in FIG. 3B, the dancer arm 13a and the movable dancer roller 13m of the dancer roller mechanism 13 are lifted and locked by a lock lever 13b so as not to return from the state, so that a strip-shaped packaging material is obtained. It is possible to maintain a state where no weight is applied to Fw. The lock lever 13b is an example of a release holding unit that holds the function of applying tension to the strip-shaped packaging material Fw in a released state. Another example of the release holding means may be an actuator (not shown) such as an air cylinder device. When the end of the strip-shaped packaging material Fw is formed, the function of applying tension to the strip-shaped packaging material Fw by the dancer roller mechanism 13 is released by the locking action of the lock lever 13b, as shown in FIG. 3(b). There is. In this state, as shown in FIG. 3( b ), the band-shaped packaging material Fw in this example is formed so that the band-shaped packaging material Fw close to the end of supply is at an appropriate position, for example, the dancer roller mechanism 13. It is performed by cutting in the transverse direction at a position on the upstream side of delivery (a position between the packaging material roll Fr and the dancer roller mechanism 13). The cut position of the band-shaped packaging material Fw is the pattern matching position a as shown in FIG. 2A, but the pattern matching position a can be appropriately determined in advance by the user side. If the dancer roller mechanism 13 is trying to continue the tensioning function, the strip-shaped packaging material Fw cannot hang up tension against the moment due to the weight of the dancer roller mechanism 13 at the moment when it is cut, and it hangs freely. However, by canceling the tension function by the lock lever 13b, such a behavior of the strip-shaped packaging material Fw is avoided, and the strip-shaped packaging material Fw is loosened without tension (a peg remains), and the subsequent pullback operation is performed. It will be in a standby state that enables. The strip-shaped wrapping material Fw cut at the pattern matching position a becomes the old strip-shaped wrapping material Fwo having the end Fwoe formed.

The process shown in FIG. 2C corresponds to the process shown in FIGS. 3C-1 to 3C-3. As shown in FIG. 3C-1, the old packaging material roll Fr is removed from the roll holder 60. Then, as shown in FIG. 3C-2, the new packaging material roll Frn is loaded and held in the roll holder 60. Further, as shown in FIGS. 2(c) and 3(c-3), the cut old strip-shaped packaging material Fwo is pulled back toward the new packaging material roll Frn and onto the new packaging material roll Frn. The start end Fwns of the new strip-shaped packaging material Fwn wound around the new packaging material roll Frn is on the surface of the new packaging material roll Frn. Since the dancer roller mechanism 13 is released from the tension imparting function to the old strip-shaped packaging material Fwo as described above, the dancer roller mechanism 13 does not pull the old strip-shaped packaging material Fwo against the action of the tension by the dancer roller mechanism 13. The old strip-shaped packaging material Fwo can be smoothly pulled back onto the new packaging material roll Frn. The direction in which the old strip-shaped packaging material Fwo is pulled back is the direction in which the operator pulls it from the lower side to the front upper side when directly facing the new packaging material roll Frn held by the roll holder 60. In the dancer roller mechanism 13, the slack (crawling amount) of the old strip-shaped packaging material Fwo caused by the release of the tension application function is equal to or longer than the length that allows the old strip-shaped packaging material Fwo to be pulled back onto the new packaging material roll Frn. It has a length of. At the time of stocking, the original adhesive tape T0 has already been adhered over the starting end Fwns and the surface of the new packaging material roll Frn, so that it is fixed on the surface of the new packaging material roll Frn. The adhesive tape T0 can be used to join the ends of both the old and new strip-shaped packaging materials Fwo and Fwn.

FIG. 4D shows the next step of FIG. 3C-3. As shown in FIG. 2D and FIG. 4D, the end Fwoe of the old strip-shaped packaging material Feo pulled back onto the new packaging material roll Frn and the new strip-shaped packaging material Fwn fed from the new packaging material roll Frn. The starting end Fwns is abutted on the surface of the new packaging material roll Frn. At the time of abutting, the front side of the old strip-shaped packaging material Fwo and the new strip-shaped packaging material Fwn on which the pattern Pa is drawn appears on the front surface side of the new packaging material roll Frn, and the operator selects the new packaging material roll Frn. On the surface of, the pattern pattern portion Pao on the end side of the old strip-shaped packaging material Fwo and the pattern pattern portion Pan on the start end side of the new strip-shaped packaging material Fwn can be directly and visually observed. Since the position where the old strip-shaped packaging material Fw is cut to form the terminal end Fwoe is the predetermined pattern matching position a corresponding to the start end Fwns of the new strip-shaped packaging material Fwn as described above, the pattern when abutted against each other Regarding the pattern, the part Pao of the design pattern on the end side and the part Pan of the design pattern on the start end side are correctly continuous, and both parts Pao and Pan of the design pattern when connected are the original design pattern Pa of the strip-shaped packaging material Fw. It will be similar. That is, the starting end Fwns of the new strip-shaped packaging material Fwn and the terminal end Fwoe of the pulled back old strip-shaped packaging material Feo are abutted against each other at the patterning position a on the surface of the new packaging material roll Frn, and the pattern is continuous. Becomes

Regarding the start end Fwns of the new strip-shaped packaging material Fwn, when the user purchases the new packaging material roll Frn, the packaging material manufacturer can specify the position in the picture pattern Pa in advance. Alternatively, the user of the bag-making filling and packaging machine determines the position to be the starting end Fwns of the new strip-shaped packaging material Fwn, and cuts the new strip-shaped packaging material Fw wound on the new packaging material roll Frn at that position. It is also possible to obtain the starting point Fwns. The starting end Fwns is the pattern matching position a of the pattern Pa on the strip-shaped packaging material.
In the above example, the end Fwoe of the old strip-shaped packaging material Fwo is formed by cutting at the pattern matching position a in the picture pattern Pa, but also when the user purchases the new packaging material roll Frn, the end Fwoe is also formed. In addition, the packaging material maker can be designated in advance so that the pattern Pa ends at the predetermined pattern alignment position a when the strip-shaped packaging material is fed out as it is consumed. When the pattern finishes at the pattern pattern matching position, the strip-shaped packaging material is the core tube of the packaging material roll when viewed from the winding side of the strip-shaped packaging material Fw in the core material tube at the manufacturing stage of the packaging material roll. Even when it is wound so that the edge is exactly at the picture pattern alignment position and the picture pattern begins, or there is a non-patterned portion of a specified length from the core tube of the packaging material roll. Alternatively, the strip-shaped packaging material Fw may be wound so that the pattern pattern Pa starts from the pattern pattern alignment position a later. It is understood that the user only needs to cut the strip-shaped packaging material Fw at the picture pattern alignment position a where the picture pattern Pa ends, and thus can easily form the terminal end Fwoe. Particularly in the former case, the end of the strip-shaped packaging material Fw peeled off from the core tube can be used as the end Fwoe for immediate paper splicing.

Next, as shown in FIG. 2(e) and FIG. 4(e), the old double strip-shaped packaging material Fwo and the new strip-shaped packaging material Fwn are in the abutting state of both ends Fwoe, Fwns where the pattern Pa is confirmed, The adhesive tape T is adhered and connected to join the paper. The adhesive tape T is attached across the end Fwoe of the old strip-shaped packaging material Fwo and the start end Fwns of the new strip-shaped packaging material Fwn to perform splicing. As shown in FIG. 2(e), a range spanning the end Fwoe and the start end Fwns is pasted with a sticking tape T (shown with some hatching). The picture pattern Pa on the outer side surface of the strip-shaped packaging material is a picture pattern that is continuously connected.

As shown in FIG. 4(f), the strip-shaped packaging material to which the paper splicing has been performed restores the tension-giving function of the dancer roller mechanism 13 by removing the release state of the tension-giving function to the strip-shaped packaging material Fw by the lock lever 13b. By doing so, tension is applied. The old strip-shaped packaging material Fwo and the new strip-shaped packaging material Fwn connected to the old strip-shaped packaging material Fwo are pulled by the tension, and the new strip-shaped packaging material Fwn is fed from the new packaging material roll Frn. The old strip-shaped packaging material Fwo and the new strip-shaped packaging material Fwn are stored in the dancer roller mechanism 13 as storage portions. In this case, the splicing position of the strip-shaped packaging material Fw may move to the storage portion of the dancer roller mechanism 13 as shown in the figure.

FIG. 5 is a perspective view showing in detail how the ends of both the old and new strip-shaped packaging materials are connected by sticking the sticking tape T. As shown in FIG. 5, with respect to the adhesive tape T, half of the tape width on the peripheral surface of the new packaging material roll Frn is on the back surface side (seal surface side) of the starting end Fwns of the new strip-shaped packaging material Fwn. Paste it on. In that state, the old strip-shaped packaging material Fwo is drawn to the start end Fwns of the new strip-shaped packaging material Fwn, and the end Fwoe of the old strip-shaped packaging material Fwo is pasted on the tape width half of the remaining sticking tape T on the back surface side (seal surface side). wear. The adhesive tape T is cut into a length longer than the band width of the band-shaped packaging material Fw, and the excess tape portions Te and Te protruding from both ends are folded back at the portions corresponding to the side edge parts of the band-shaped packaging material Fw to obtain the old tape. It is preferable that the end (Fwoe) of the strip-shaped packaging material (Fwo) and the start end (Fwns) of the new strip-shaped packaging material (Fwn) are attached to the front surface (print surface) side. Since the cut-out edge of the adhesive tape T does not face outward, it is easy to handle and the adhesive is reliable and stable.

In the paper splicing method in this bag-making filling and packaging machine, the tape T0 (Fig. 3 (c-2)) attached in advance to the start end Fwns of the new strip-shaped packaging material Fwn for the new packaging material roll that is on standby before being loaded into the roll holder 60. , (C-3)) are attached, and when the new packaging material roll Frn is loaded/held in the roll holder 60 and is spliced with the old strip-shaped packaging material Fwo, the adhesive tape T0 is used to set the starting end Fwns. Both the old and new strip-shaped packaging materials Fwo and Fwn, which are abutted with the terminal end Fwoe, can be joined together on the new packaging material roll Frn. In this case, the adhesive tape T0, which had the starting end Fwns of the new strip-shaped packaging material Fwn attached to the surface of the new packaging material roll Frn, should be attached to the portion attached to the starting end Fwns of the new strip-shaped packaging material Fwn. While maintaining, peel off the part that was stuck to the new packaging material roll Frn from the new packaging material roll Frn, and then butt the end Fwoe and the start end Fwns of both the old and new strip-shaped packaging materials Fwo and Fwn, and the pattern pattern is continuous. In this state, the part of the adhesive tape T0 that has been peeled off is attached to the end Fwoe of the old strip-shaped packaging material Fwo.
Instead of the adhesive tape that has been applied in advance, another adhesive tape T is prepared on the user side of the bag-making filling and packaging machine, and a new band-shaped packaging material Fwn start end and Fwns old band-shaped packaging material Fwo end Fwoe are provided. It is also possible to stick the prepared sticking tape T over the end Fwoe and the start end Fwns in a state where the parts of the pattern are butted so as to be continuous.

As a method of preparing the adhesive tape in advance, a packaging material roll cart capable of carrying the packaging material roll Fr and carrying it, and a packaging material different from the packaging material roll holder 60 provided in the packaging machine 10 and operating. In the new packaging material roll Frn mounted/held in the roll holding part, the adhesive tape T is applied so that an adhesive surface is attached to the inside (sealing surface) of the starting material Fwns of the wound new strip-shaped packaging material Fwns. It can be pasted in advance. Also in this case, when sticking to the old strip-shaped packaging material Fwo, it is preferable to stick the sticking tape T such that the entire length of the sticking tape T in the tape length direction and the whole width in the tape width direction are sticked out, and the sticky part is partially protruded. preferable. Further, as a packaging material roll Fr to be mass-produced, a packaging material roll in which the start end and the end of the band-shaped packaging material Fw are at the same position is manufactured as a packaging material roll Fr to be mass-produced, and the packaging material roll is used as a new packaging material. It is desirable to use it as a roll. In addition, when the new packaging material roll Frn is used up, it is desirable to cut once near the same pattern as the end of the old packaging material roll Fr before applying the adhesive tape T.

As described above with reference to the examples, the pattern cannot be seen unless the strip-shaped packaging material Fw is turned over in an opaque packaging material such as an aluminum vapor-deposited film. However, according to the paper splicing method of the present invention, For example, the band-shaped wrapping material Fw is cut in the state of being patterned to the start end Fwns of the new band-shaped wrapping material Fwn to form the terminal end Fwoe, and the pattern pattern appearing on the surface side is formed on the peripheral surface of the new wrapping material roll Frn. It is only necessary to check the pattern matching by directly observing the end Fwoe of the old strip-shaped packaging material Fwo against the start end Fwns of the new strip-shaped packaging material Fwn and sticking them with the sticking tape T so that both ends are connected. It is possible to reduce the number of paper splicing work steps and perform paper splicing with a simple operation.

When the strip-shaped packaging material Fw is cut to form the end Fwoe of the old strip-shaped packaging material Fwo, for example, in FIG. 3B, when the strip-shaped packaging material Fw is cut, the strip-shaped packaging material Fw is cut by the dancer roller mechanism 13. There is a case where the termination forming position is not a proper position because the amount is not sufficient. In this case, when the old strip-shaped packaging material Fwo is pulled back to the new packaging material roll Frn, it is necessary to adjust the adjusting roller 18 and send back the old strip-shaped packaging material Fwo already supplied to the packaging machine unit side 12. Alternatively, if the end forming position can be determined in advance, it is necessary to additionally feed the strip-shaped packaging material Fw from the old packaging material roll Fr loaded in the roll holder 60 and then to determine the end-forming position of the strip-shaped packaging material. was there. According to the present invention, by predetermining the amount of scooping occurring in the dancer roller mechanism 13, it becomes unnecessary to perform additional feeding and feeding back operations for such a band-shaped packaging material, and excessive attention is paid to the end forming position. The strip-shaped packaging material can be pulled back to the new packaging material roll without the need.

Although the embodiment of the bag-making filling and packaging machine according to the present invention has been described as a vertical bag-making filling and packaging machine, the present invention is not limited to this type of bag-making filling and packaging machine, and can also be used as a horizontal bag-making filling and packaging machine. Also, it is obvious that the present invention can be applied to various packaging machines that continuously supply the packaging material in the form of a web, form continuous bags from the packaging material in the form of a web, or cut into individual bags and fill and package the product. Is.

10 Bag-making filling and packaging machine 11, 11a Packaging material feeding section 12, 12a Packaging machine section 13 Dancer roller mechanism 13a Dancer arm 13b Lock lever 13c Swing shaft 13f Fixed guide roller 13m Movable dancer roller 17 Printing device 18 Adjusting roller 50 Vertical type Bag-making filling and packaging machine 51 Former 52 Vertical sealing devices 52a, 52b Vertical heat seal bar 53 Filling cylinder (filling cylinder)
54 horizontal sealing/cutting device 54a, 54b horizontal sealing/cutting block 55, 55 packaging material feeding device 56 cutter blade 57 groove 58 hopper 58a input port 59 arm 60 roll holder 61 printing device 62 dancer roller mechanism 62m movable dancer roller 62f fixed guide roller 63 guide roller 64 weight lever 65 swing shaft 66 paper joint 67 cutting groove 68 adjusting roller Fr packaging material roll Fw strip-shaped packaging material Fwo old strip-shaped packaging material end Fwoe
Fwn New band-shaped packaging material Fwns
fe, fe Side edge part Ft Cylindrical packaging material Wup Vertical traveling route Sc Vertical seal Se Horizontal seal S Product B Bag Bp Bag package Pa Picture pattern Mr Registration mark a Pattern alignment position T Adhesive tape Te Surplus tape part T0 Adhesion Tape L Length of packaging bag

Claims (11)

A roll holder that holds a packaging material roll around which the strip-shaped packaging material is wound, and a dancer roller mechanism that stores the strip-shaped packaging material fed from the packaging material roll and that has a function of applying tension to the strip-shaped packaging material. And a packaging machine section that forms a packaging bag from the strip-shaped packaging material fed from the packaging material feeding portion, and fills/wraps the product to be packaged in the packaging bag. The bag-making filling and packaging machine in which the feeding direction of the strip-shaped packaging material from the packaging material roll held by the roll holder is a direction in which the stripping packaging material is pulled down from the front upper side of the operator facing the packaging material roll. At
Release the function of tensioning the band-shaped packaging material that the dancer roller mechanism played,
The end of the strip-shaped packaging material fed from the packaging material roll is formed at a position upstream of the dancer roller mechanism,
A new packaging material roll (hereinafter, this packaging material roll is referred to as a "new packaging material roll") is loaded and held in the roll holder instead of the old packaging material roll,
Pulling back the strip-shaped packaging material with the terminal end formed (hereinafter, this strip-shaped packaging material will be referred to as "old strip-shaped packaging material") in a manner of pulling the new packaging material roll from the lower side to the front upper side,
A start end of a new strip-shaped packaging material (hereinafter referred to as "new strip-shaped packaging material") to be unrolled from the new packaging material roll and the end of the old strip-shaped packaging material pulled back to the new packaging material roll. A paper joining method in a bag-making filling and packaging machine, comprising: The dancer roller mechanism includes a fixed guide roller whose mounting position is fixed, and a movable dancer roller that can approach and separate from the fixed guide roller, and the movable dancer roller separates from the fixed guide roller. Occasionally, the band-shaped wrapping material has a function of storing by tensioning the band-shaped wrapping material and imparting a tension to the band-shaped wrapping material. When the function of applying the tension is released from the state of applying the tension to the, and the function of applying the tension by the dancer roller mechanism is in the released state, the pullback of the old strip-shaped packaging material to the new packaging material roll is performed. 2. The paper splicing method in the bag-making filling and packaging machine according to claim 1, wherein the dancer roller mechanism is applied by applying the amount of the old strip-shaped packaging material that has been scooped out. When the old strip-shaped packaging material is pulled back onto the new packaging material roll, the end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material are butted against each other on the surface of the new packaging material roll, and properly. The bag-making filling package according to claim 1 or 2, wherein the end of the old strip-shaped packaging material and the start end of the new strip-shaped packaging material that are abutted to each other are joined together by an adhesive tape on the back surface side of the packaging material. Paper splicing method in machine. In the new packaging material roll that is on standby before being loaded into the roll holder, since the adhesive tape is previously attached to the starting end of the new strip-shaped packaging material that is wound around the new packaging material roll. The method of joining paper in a bag-making filling and packaging machine according to claim 3. The new packaging material roll in the standby state is a new packaging material roll mounted on a packaging material roll cart or a new packaging material roll held by a roll holder different from the roll holder included in the packaging material feeding section. The paper joining method in the bag making filling and packaging machine according to claim 4, which comprises The adhesive tape is cut out to a paper splicing length longer than the band width of the old strip-shaped packaging material and the new strip-shaped packaging material, and the old strip-shaped packaging material and the new strip-shaped packaging material by the adhesive tape. The excess tape portions protruding from both ends of the belt are folded and attached to the front surface side of the packaging material at the end of the old packaging material and the beginning of the new packaging material. 5. The method of joining paper in the bag-making filling and packaging machine according to any one of 5 above. Of the adhesive tape that has been attached to the surface of the new packaging material roll at the starting end of the new strip-shaped packaging material, the portion that has been attached to the new packaging material roll is peeled off from the new packaging material roll, and is peeled off. The adhesive tape is used as the adhesive tape by affixing a portion of the adhesive tape to the end of the old belt-shaped packaging material in a state of being abutted against the start end of the new belt-shaped packaging material. The paper splicing method in the bag making filling and packaging machine according to item 3. The same packaging pattern is drawn on the strip-shaped packaging material for each pitch of the length of the packaging bag,
The old strip-shaped packaging material is cut at a predetermined pattern matching position in the pattern, or the pattern is a predetermined pattern matching position on the winding end side of the packaging material roll onto the core tube When the end of the old strip-shaped packaging material is formed by peeling the strip-shaped packaging material from the core tube of the packaging material roll,
The new strip-shaped packaging material wound on the new packaging material roll is cut at the predetermined pattern matching position, or the strip-shaped packaging material is rolled up and the predetermined pattern in the pattern is determined. The starting end of the new strip-shaped packaging material is formed by using the starting end of the strip-shaped packaging material of the packaging material roll manufactured with the picture pattern matching position as the starting end as it is as the starting end of the new strip-shaped packaging material. The paper joining method in the bag-making filling and packaging machine according to any one of claims 1 to 7. A roll holder that holds a packaging material roll around which the strip-shaped packaging material is wound, and a dancer roller mechanism that stores the strip-shaped packaging material fed from the packaging material roll and that has a function of applying tension to the strip-shaped packaging material. And a packaging machine section that forms a packaging bag from the strip-shaped packaging material fed from the packaging material feeding portion, and fills/wraps the product to be packaged in the packaging bag. The bag-making filling and packaging machine in which the feeding direction of the strip-shaped packaging material from the packaging material roll held by the roll holder is a direction in which the stripping packaging material is pulled down from the front upper side of the operator facing the packaging material roll. At
The packaging material feeding section includes a release holding means for holding the function of storing the band-shaped packaging material and applying tension to the band-shaped packaging material in a released state,
The strip-shaped packaging material (hereinafter, this strip-shaped packaging material is referred to as "old strip-shaped packaging material") whose end is formed at a position upstream of the dancer roller mechanism and a new packaging material roll loaded in the roll holder. (Hereinafter, this packaging material roll is referred to as "new packaging material roll.") The new strip-shaped packaging material (hereinafter, this strip-shaped packaging material is referred to as "new strip-shaped packaging material") is the new packaging material roll. On the surface of the new wrapping material from the lower side to the upper side of the new wrapping material roll when the starting end of the new wrapping material and the function of applying the tension of the dancer roller mechanism are in the released state by the release holding means. A bag-making filling and packaging machine, which is formed by joining together the end of the old strip-shaped packaging material pulled back in a manner of being pulled up and abutting it. The dancer roller mechanism includes a fixed guide roller whose mounting position is fixed, and a movable dancer roller that can approach and separate from the fixed guide roller, and the movable dancer roller separates from the fixed guide roller. Occasionally, the function of storing the band-shaped packaging material and applying the tension to the band-shaped packaging material is achieved, and the function of tensioning is released from the state where the dancer roller mechanism applies the tension to the band-shaped packaging material. At this time, the dancer roller mechanism causes a hoisting amount of the strip-shaped packaging material that is equal to or larger than the pullback amount when the old strip-shaped packaging material is pulled back onto the new packaging material roll. When the movable dancer roller approaches the fixed guide roller, the function of applying the tension to the band-shaped packaging material of the dancer roller mechanism can be held in the released state, and the old state is maintained in the released state by the release holding means. 10. The bag-making filling and packaging machine according to claim 9, wherein the belt-shaped packaging material can be pulled back to the new packaging material roll. The same packaging pattern is drawn on the strip-shaped packaging material for each pitch of the length of the packaging bag,
The old strip-shaped packaging material is cut at a predetermined pattern matching position in the pattern, or the pattern is a predetermined pattern matching position on the winding end side of the packaging material roll onto the core tube When the end of the old strip-shaped packaging material is formed by peeling the strip-shaped packaging material from the core tube of the packaging material roll,
The new strip-shaped packaging material wound on the new packaging material roll is cut at the predetermined pattern matching position, or the strip-shaped packaging material is rolled up and the predetermined pattern in the pattern is determined. The starting end of the new strip-shaped packaging material is formed by using the starting end of the strip-shaped packaging material of the packaging material roll manufactured with the picture pattern matching position as the starting end as it is as the starting end of the new strip-shaped packaging material. The bag-making filling and packaging machine according to claim 9 or 10, further comprising:

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