JP6994750B2 - Paper splicing auxiliary device in wrapping machine - Google Patents

Description

INDUSTRIAL APPLICABILITY The present invention is effective when a band-shaped packaging material used for packaging a product as a package is manually connected to the end of a new packaging material when the packaging material being supplied reaches the end. The present invention relates to a paper splicing assisting device in a packaging machine that functions in the above.

Conventionally, the strip-shaped packaging material is unwound from a winding roll in which the strip-shaped packaging material is wound, and the unwound strip-shaped packaging material is passed through a cylinder-making machine (former) to be bent into a substantially tubular shape, and then from the cylinder-making machine. Both sides of the strip-shaped wrapping material to be sent are sealed with a center sealer to form a tubular wrapping material, and the product is supplied into the tubular wrapping material through a filling cylinder, and the end of the tubular wrapping material at the position between the products. There is known a bag-making filling and packaging machine that manufactures a bag package by packaging a product in a bag while manufacturing a bag by applying an end seal with a sealer. As a bag-making filling and packaging machine, a vertical bag-making filling and packaging machine in which a bag-making device is vertically arranged and products are loaded from above, and a bag-making and filling and packaging machine in which a bag-making device is placed horizontally and products are packaged in a tubular shape by a supply conveyor. There is a horizontal bag-making filling and packaging machine that is fed into the material.

When the strip-shaped packaging material is unwound from the take-up roll near its end, the operation of the bag-making filling and packaging machine is usually interrupted, and a new take-up roll is placed on the finished strip-shaped packaging material (referred to as "old strip-shaped packaging material"). The band-shaped packaging material (referred to as "new band-shaped packaging material") is connected (the work is referred to as "paper splicing" work), and the operation of the bag-making filling packaging machine is restarted with the connected band-shaped packaging material.

Specifically, in the paper splicing work, the old strip-shaped packaging material approaching the end is cut in the transverse direction, the cut end is placed on the paper splicing table, and the cut end is placed on the paper splicing table. This is done by placing the start ends of the new strip-shaped packaging material (similarly, the cut ends) close to each other and connecting both the cut ends of the old and new strip-shaped packaging materials with a connecting tape such as an adhesive tape.

In the paper splicing work, the directions of the old and new strip-shaped packaging materials and the edges on both sides are straight without being connected with inclination or misalignment so that the operation of the bag-making filling and packaging machine can be restarted smoothly. It is preferable to connect them so that they are aligned with each other. For that purpose, when connecting the cut ends of the old and new strip-shaped packaging materials on the paper splicing table with tape, fix the cut ends of both strip-shaped packaging materials in the same direction and position so that they do not move on the paper splicing table. There is a need to. About this fixing method, the method usually used is a method of constructing a paper splicing table as a suction table and adsorbing and fixing the cut end of both strip-shaped packaging materials to the paper splicing table, and a method of adsorbing and fixing the packaging material on the paper splicing table. There is a method of pressing and fixing with a rubber magnet.

As a method of adsorbing and fixing to the paper splicing table, for example, there is one described in Cited Document 1 or Cited Document 2. Cited Document 1 discloses a strip-shaped material adsorption means capable of adsorbing a strip-shaped packaging material for performing termination treatment such as paper splicing in relation to a strip-shaped packaging material termination detection device. The strip-shaped material adsorption means is arranged along the traveling path of the strip-shaped packaging material, and includes a suction plate having a width wider than the width of the strip-shaped packaging material. The suction plate is formed with a slit extending in the transverse direction of the strip-shaped packaging material through which a cutter can pass, and a row of suction holes extending along the slit on both sides of the slit, and serves as a paper splicing table. Each suction hole row sucks and holds the band-shaped packaging material by, for example, the negative pressure generated by the ejector that blows out air.

The band-shaped adsorption means operates immediately when it is determined that the end of the band-shaped packaging material is near, and adsorbs the band-shaped packaging material. The strip-shaped packaging material is adsorbed with the entire width placed on the adsorption plate. By moving the cutting edge of the cutter along the slit formed in the suction plate, the old strip-shaped packaging material that has already been supplied is cut from the strip-shaped packaging material on the take-up roll side. The starting end of the new strip-shaped packaging material is placed in a state of being adsorbed on the suction plate along the cut end of the old strip-shaped packaging material, and the ends of both strip-shaped packaging materials are connected with a paper connecting tape to perform paper splicing.

Cited Document 2 discloses a paper joining method and an apparatus that enable pattern matching. That is, when the end of unwinding of the packaging material from the take-up roll is detected, the control device stops the machine and presses the packaging material with the rubber roll containing the one-way stopper that does not rotate in the transport direction of the packaging material. On the upstream side from the rubber roll with the one-way stopper to the take-up roll, the machine is stopped with excess packaging material left in the reservoir by the dancer roller. Remove the old paper tube of the take-up roll and set the new take-up roll in the take-up holder. The packaging material fixed by the rubber roll with a one-way stopper that can rotate only in the anti-transport direction is pulled out in the direction of the new take-up roll, and the surfaces are matched with each other to perform paper joining work. By simply pulling out the old wrapping material in the direction of the roll, we are trying to perform the paper joining work without any hassle.

By the way, the strip-shaped packaging material unwound from the take-up roll is usually supplied to the packaging machine with the inner surface (printing pear) of the bag facing outward (upper side). The strip-shaped packaging material thus supplied is formed in a cylindrical shape so that the inner surface is on the inside in the cylinder making device. If you want to match the printed pattern on the surface of the old and new strips in the manual paper splicing work of the old and new strips, make a "crease" that crosses the width direction in either the old or new strips. The pattern is used as a guide so that the patterns are connected at the creases.

Further, in the paper splicing work on the way from the take-up roll to the cylinder making machine of the packaging machine, since the printed surface of the strip-shaped packaging material in the middle of supply is located on the back side, the worker usually prints. I can't see the pattern directly. A light is applied from the back side of the strip-shaped packaging material to see through the pattern (Patent Document 3), but when the packaging material is a packaging material such as an aluminum-deposited film that suppresses light transmission to almost zero. At the paper splicing work position, two thin-film aluminum film are stacked, so the pattern is difficult to match even when exposed to light, or the pattern cannot be seen at all. If the paper is spliced with the position or angle misaligned, if the misalignment is a slight misalignment of the packaging material feed pitch, it may be automatically absorbed by the paper feed control, but the resulting misalignment may occur. If the amount is more than a certain amount, the misalignment will not be eliminated, defective packaging will occur, and the product, packaging film, etc. will be wasted.

The band-shaped packaging material that is unwound from the take-up roll and sent to the packaging machine passes through the cylinder making machine and is vertically sealed around the filling cylinder to form a tubular packaging material, and is further subjected to horizontal sealing. Since it is not possible to pull it back to the take-up roll side, the dancer roller part and tension lever part can be placed in the middle of the supply path of the packaging material to make the storage part of the band-shaped packaging material. The strip-shaped packaging material that is provided and stored in the storage section will be returned to the take-up roll side. Regarding the amount of band-shaped packaging material that can be pulled back from the dancer roller part and tension lever part, the end of the old band-shaped packaging material that is attached to the paper tube with tape etc. is peeled off from the paper tube, and the new band-shaped packaging material is used. It is difficult to pull it out onto the packaging material.

Therefore, in the paper splicing work, the "packaging material end notice" function is used in advance, the machine is stopped before the band-shaped packaging material is completely used, the band-shaped packaging material is manually unwound, and then the new winding roll is used. Above, it is the work of connecting the strip-shaped packaging materials while matching the pattern on the printed surface. The dancer roller portion and the tension lever portion are generally configured by combining a plurality of rollers so as to be swingable at the ends of the respective levers, and it may take time and effort to manually carry back the strip-shaped packaging material. In addition, the accuracy of the "packaging material end notice" function (the accuracy of the remaining packaging material length) is also limited because it is affected by the outer diameter of the paper tube.

Japanese Unexamined Patent Publication No. 2007-254084 Japanese Unexamined Patent Publication No. 2012-240756 Japanese Unexamined Patent Publication No. 2016-175661

Therefore, in the take-up roll, the strip-shaped packaging material is always wound with the printed surface facing outward, so that the old strip-shaped packaging material at the end of the feeding is pulled back onto the newly set new strip-shaped packaging material. If it can come, it is possible to connect the old and new strip-shaped packaging materials while matching the patterns on the front side printed surfaces.
Regardless of the width dimension and material of the strip-shaped wrapping material, there is a problem to be solved in that it enables easy paper splicing of the strip-shaped wrapping material on the new take-up roll.

An object of the present invention is to solve the above-mentioned problems, and regardless of the width dimension and the material of the strip-shaped packaging material, the old strip-shaped packaging material at the end of feeding is pulled back and put on the newly set new strip-shaped packaging material. By bringing the old and new strip-shaped packaging materials to each other while matching the patterns on the printed surfaces on the front side, it is possible to provide a paper splicing auxiliary device in a packaging machine that facilitates paper splicing of strip-shaped packaging materials.

In order to solve the above problems, the paper splicing assisting device in the packaging machine according to the present invention includes a winding roll support portion for supporting the winding roll around which the strip-shaped packaging material is wound, and is unwound from the winding roll. In a packaging machine that manufactures a package in which a product that is a package is packaged by molding the strip-shaped packaging material, immediately after being unwound from the take-up roll into a packaging machine frame close to the take-up roll support portion. The strip-shaped packaging material is stored and the stored strip-shaped packaging material is provided with a storage portion immediately after feeding, and the amount of packaging material stored in the storage portion immediately after feeding is the strip-shaped packaging material in the storage portion immediately after feeding. By releasing the storage of the wrapping material, at least the end of the strip-shaped wrapping material separated from the winding roll can be pulled back onto the winding roll of the new strip-shaped wrapping material set in the winding roll support portion. It consists of a quantity.

According to the paper splicing assisting device in this wrapping machine, the end of the strip-shaped wrapping material is separated from the take-up roll as the strip-shaped wrapping material unwound from the take-up roll reaches the end. The end of the strip-shaped wrapping material can be separated not only when the end of the strip-shaped wrapping material attached to the take-up paper tube of the take-up roll is peeled off from the take-up paper tube, but also to some extent on the take-up paper tube. Even if the band-shaped packaging material is left in the wound state, the case where the band-shaped packaging material unwound from the winding roll is cut with a cutting tool such as a cutter to obtain the cutting end is also included. In either case, the separation of the ends of the strip packaging is done manually.
The paper splicing auxiliary device is provided with a storage section immediately after feeding to store the strip-shaped packaging material immediately after being unwound from the winding roll in the vicinity of the winding roll support portion, and the storage section immediately after feeding is a stored strip-shaped storage section. The packaging material can be released. Immediately after feeding, the storage is released from the storage unit, and the slackened band-shaped packaging material can be pulled back to the upstream side.

The amount of packaging material stored in the storage section immediately after feeding is such that when the storage of the band-shaped packaging material in the storage section immediately after feeding is released, at least the end of the band-shaped packaging material separated from the winding roll is set to the winding roll support portion. Enough to pull back onto the take-up roll of new strip packaging set in. Therefore, the end of the strip-shaped packaging material can be sufficiently pulled back onto the winding roll of the new strip-shaped packaging material by the amount of the packaging material stored in the storage portion immediately after feeding. The end of the pulled back old strip-shaped packaging material can be manually spliced to the new strip-shaped packaging material on the winding roll of the new strip-shaped packaging material, for example, by using a thin adhesive tape. At that time, since the printed surface of the strip-shaped packaging material is on the outside of the take-up roll, even if the packaging material is opaque such as an aluminum-deposited film, paper splicing is performed while visually checking the pattern matching of the printed surface. be able to.

In the paper splicing assisting device in this packaging machine, the storage portion immediately after feeding supports the parallel first and second guide rolls around which the strip-shaped packaging material is wound and the both guide rolls rotatably at both ends thereof. It is provided with a pair of swing plates that are swingably supported with respect to the packaging machine frame, and the swing plates are wrapped around the first and second guide rolls. The strip-shaped packaging material is stored by storing the strip-shaped packaging material by lengthening the winding path of the material, and the strip-shaped packaging material is wound by shortening the winding path of the strip-shaped packaging material wrapped around the first and second guide rolls. The posture can be switched between the storage and release posture in which the storage of the packaging material is released.
According to the paper splicing assisting device in this wrapping machine, the posture taken by the storage unit immediately after feeding, which is composed of the first and second guide rolls and the oscillating plate that is swingably supported with respect to the wrapping machine frame. When the storage posture is set, the winding path of the strip-shaped packaging material wound around both guide rolls becomes longer due to the positional relationship between the first and second guide rolls, so that the strip-shaped packaging material is in the storage state and immediately after feeding. When the posture taken by the storage unit is changed to the storage / release posture, the positional relationship between the first and second guide rolls changes and the winding path of the strip-shaped packaging material wound around both guide rolls becomes shorter, so that the strip-shaped packaging material becomes It becomes a storage release state.

A rotation operation lever rotatably attached to the packaging machine frame and the tip of which is pivotally attached to one of the swing plates in order to change the posture of the storage unit immediately after feeding, and the packaging. It is provided with a pair of guide portions provided on the machine frame and for guiding the movement of one guide roll which is a common axis for both swing plates, and the storage portion immediately after feeding is the rotation operation lever. By the operation, both the swing plates are rotated and the common shaft is moved while being guided by both the guide portions, so that the posture can be switched between the storage posture and the storage release posture. ing.
According to the paper splicing assisting device in this wrapping machine, a configuration that allows the swing plate to swing with respect to the wrapping machine frame can be obtained by the rotation operation lever and the pair of guide portions. That is, when the rotation operation lever is operated by pivotally attaching the tip of the rotation operation lever to one of the swing plates and providing the swing plate with a common shaft that can move along both guide portions. The movement of both swing plates is restrained by the rotation operation lever whose tip moves in an arc shape and the guide paths of both guide portions, and both swing plates have the first guide roll and the second guide roll. Since it is in a linked state, it swings synchronously, and the posture of the storage unit is changed immediately after feeding.

In the paper splicing assisting device in this packaging machine, both guide portions have a groove fitting structure in which both ends of the common shaft are fitted into the respective vertical grooves formed so as to extend in the vertical direction to the packaging machine frame. It can be configured by a rack and pinion mechanism in which a pinion provided at an end of the common shaft meshes with a guide rack provided in parallel along each of the vertical grooves.
According to the paper splicing assist device in this wrapping machine, the roll shaft of the first guide roll as a common shaft provided on the swing plate is fitted into the vertical groove formed in the wrapping machine frame at its end. Further, the guide racks provided in parallel along the vertical groove mesh with the pinions provided at both ends of the roll shaft of the first guide roll. With such a groove fitting structure and a rack and pinion mechanism, both swing plates are reliably guided and moved by the guide portion in synchronization with each other. Since the common shaft is guided without departing from the flutes, the pinion does not disengage from the mesh with the guide rack .

The first guide roll and the second guide roll are provided with respect to the feeding direction in which the strip-shaped packaging material is fed from the winding roll toward the packaging machine when the storage unit immediately after feeding takes the storage posture. The arrangement may be such that the storage portions are arranged in substantially orthogonal directions, and when the storage unit immediately after the feeding takes the storage / release posture, the arrangement is substantially arranged in the feeding direction.
According to the paper splicing assisting device in this packaging machine, the arrangement of the first guide roll and the second guide roll in line with the feeding direction of the strip-shaped packaging material changes according to the posture taken by the storage unit immediately after feeding. The length of the winding path of the strip-shaped packaging material wound around both guide rolls changes, and the posture taken by the storage unit immediately after feeding can be the storage posture or the storage release posture.
Further, the common shaft is a roll shaft of the first guide roll, and the second guide roll is the roll shaft of the first guide roll and the roll shaft of the first guide roll when the storage unit immediately after feeding takes the storage posture. The arrangement is such that the dynamic operation levers are arranged so as to be close to one vertical plane connecting the rotation shafts, and when the storage unit immediately after feeding takes the storage / release posture, the arrangement is such that the storage unit moves away from the vertical plane. Can be done.
According to the paper splicing assisting device in this packaging machine, by using the roll shaft of the first guide roll for the guide portion, the configuration can be simplified and the posture taken by the storage portion immediately after feeding can be adjusted. By changing the arrangement in which the second guide rolls are lined up with respect to one vertical plane connecting the roll shaft of the first guide roll and the rotation shaft of the rotation operation lever, the strip-shaped packaging material wound around both guide rolls is wound. The length of the hooking route changes, and the posture taken by the storage unit immediately after feeding can be the storage posture or the storage release posture.

The take-up roll support portion is loaded with one take-up roll or two take-up rolls arranged one above the other, and supports the take-up roll rotatably in the loaded state. be able to.
According to the paper splicing assist device in this wrapping machine, the take-up roll support portion is loaded with one take-up roll and rotatably supported in the loaded state when the packaging demand for the wrapping machine is small. When the packaging demand is high, the two take-up rolls are loaded in the floor-saving space with the two take-up rolls arranged one above the other, and the loaded rolls are rotatably supported when the take-up rolls are replaced. , The already loaded new take-up roll can be immediately spliced.

The packaging machine includes a cylinder making machine that bends the strip-shaped packaging material into a substantially tubular packaging material, a vertical sealing portion that seals both side edge portions of the substantially tubular packaging material and forms the tubular packaging material into a tubular packaging material. A bag-making filling and packaging machine provided with a horizontal sealing portion for forming a bag by laterally sealing the tubular packaging material and manufacturing a bag packaging body filled with products, and storing the product immediately after feeding. The film supply path to the cylinder making device on the downstream side of the section is provided with a band-shaped packaging material supply path storage section such as a dancer roller section and a tension lever section capable of sufficiently storing the strip-shaped packaging material. It can be said that there is.
The paper splicing auxiliary device in this packaging machine is a bag-making filling and packaging machine provided with a cylinder making machine, a vertical seal portion and a horizontal sealing portion, and is a take-up roll in a packaging material supply path from a take-up roll support portion to a cylinder maker. It can be applied to a position close to the support portion. Since the bag-making filling and packaging machine is a packaging machine having a high packaging speed, the paper splicing auxiliary device can suitably cope with the case where the consumption of the strip-shaped packaging material is fast. When the bag-making filling and packaging machine is provided with a band-shaped packaging material supply path storage section such as a dancer roller section or a tension lever section capable of sufficiently storing the band-shaped packaging material in the packaging material supply path. , The paper splicing assisting device is arranged in the vicinity of the winding roll support portion of the route from the winding roll support portion to the strip-shaped packaging material supply path storage portion.

As described above, the paper splicing assisting device in the packaging machine according to the present invention has a storage unit immediately after unwinding, which is arranged close to the winding roll support unit and stores the strip-shaped packaging material immediately after being unwound from the winding roll. The strip-shaped packaging material that has been stored can be released from the storage section immediately after feeding, and the strip-shaped packaging material that is in a slackened state can be pulled back to the upstream side by releasing the storage from the storage section immediately after feeding. be. The amount of packaging material stored in the storage section immediately after feeding is such that when the storage of the band-shaped packaging material in the storage section immediately after feeding is released, at least the end of the band-shaped packaging material separated from the winding roll is set to the winding roll support portion. Since the amount is sufficient to pull it back onto the winding roll of the new band-shaped packaging material set in, the end of the band-shaped packaging material is the winding material winding roll of the new band-shaped packaging material with the amount of packaging material stored in the storage section immediately after feeding. It can be fully pulled back up. When the band-shaped packaging material unwound from the take-up roll reaches the end, the band-shaped packaging material manually separated from the paper tube is pulled back and the end is brought onto the newly set new band-shaped packaging material. On the winding roll of the strip-shaped wrapping material, for example, by using a thin adhesive tape, the paper can be manually spliced to the beginning end of the new strip-shaped wrapping material. At that time, since the printed surface of the strip-shaped packaging material is on the outside of the take-up roll, the end of the strip-shaped packaging material and new winding are performed regardless of the material of the strip-shaped packaging material such as an opaque packaging material such as an aluminum vapor-deposited film. It is possible to join the new strip-shaped packaging material of the roll while visually checking the pattern matching between the printed surfaces appearing on the front side.

FIG. 1 is a diagram showing an embodiment of a paper splicing assisting device in a packaging machine. FIG. 2 is a diagram illustrating pulling back of the strip-shaped packaging material using the paper splicing assisting device shown in FIG. FIG. 3 is an explanatory diagram showing the relationship between the paper splicing assisting device and the packaging material feeding path in the packaging machine shown in FIG. FIG. 4 is a perspective view showing an example of a packaging machine to which the paper splicing assisting device in the packaging machine according to the present invention is applied.

Hereinafter, examples of the paper splicing assisting device in the packaging machine according to the present invention will be described with reference to the attached drawings. FIG. 4 is a perspective view showing an example of a packaging machine to which the paper splicing assisting device in the packaging machine according to the present invention can be applied. In the packaging machine shown in FIG. 4, the strip-shaped packaging material is unwound from the winding roll supported by the winding roll support portion, and the unwound strip-shaped packaging material is formed into a tubular packaging material around a vertically placed filling cylinder. Then, a filling cylinder is put into the obtained tubular packaging material through a product that is a package, and the tubular packaging material filled with the product is sealed to manufacture a bag package in which the product is packaged. It is a bag filling and packaging machine.

In the vertical bag-making filling and packaging machine 50 shown in FIG. 4, the strip-shaped packaging material Fw unwound from the take-up roll Fr is guided by the former cylinder-making device 51, and the product to be packaged is charged. It is curved so as to wrap the cylinder 52, and both side edge portions fe and fe are overlapped on the front side of the former 51 in a palm-like shape, for example, and the overlapped both side edge portions fe and fe are provided with a pair of vertical seal bars 53a and 53a. By applying a vertical seal by the sealing device 53, it is formed on the tubular packaging material Ft. The tubular packaging material Ft is pulled down while being sucked by the packaging material feeding devices 54, 54 provided on both the left and right sides of the filling cylinder 52 and operated synchronously, and then paper-fed to the lower side of the filling cylinder 52, and then laterally. By the seal cutter device 60, the tubular packaging material Ft is laterally sealed, and the bag B in which the product is filled at the tip of the tubular packaging material Ft is cut from the tubular packaging material Ft at the site of the horizontal sealing. The finished product, bag package Bp, is manufactured separately.

Each packaging material feeding device 54 is wound around a driving timing pulley 55, a driven timing pulley 56, a guide timing pulley 57, and these timing pulleys 55 to 57, and a series of a large number of suction holes 59 are opened on the surface thereof. It is equipped with a timing belt 58. A negative pressure box (not shown) is arranged inside the timing belt 58 in the region in contact with the tubular packaging material Ft. The tubular packaging material Ft is pulled down below the filling cylinder 52 by the timing belts 58 and 58 while being sucked through the suction holes 59 of the timing belts 58 and 58, and the strip-shaped packaging material Fw is brought down by the winding roll Fr. It is delivered from.

Although not shown in detail, the horizontal seal cutter device 60 arranged below the filling cylinder 52 includes two horizontal seal heater members 61 and 61 arranged opposite to each other. The horizontal sealing heater members 61 and 61 are provided with a heat sealing member that seals the horizontal two rows, and the cutter mechanism 62 (cutter blade and the cutter blade into which the cutter blade is inserted) that laterally cuts the tubular packaging material Ft at the intermediate position of the horizontal two rows. It has a built-in groove). The horizontal seal heater members 61, 61 of the horizontal seal cutter device 60 may be immovable in the vertical direction and only open and close, but instead of this, the vertical and front-back operations are performed. Combined, it circulates and moves in a closed loop orbit such as a box shape or D shape, and moves downward together with the flow of the tubular packaging material Ft in the straight part without stopping the feeding of the packaging material. It may be a box motion that can prolong the sealing time.

The take-up roll Fr is supported by a take-up roll support portion provided on the packaging machine frame behind the bag-making filling and packaging machine 50. A loading shaft 70 for fitting and mounting the paper tube of the take-up roll Fr is horizontally provided on the take-up roll support portion. The unused take-up roll Fr is a very long strip-shaped packaging material Fw that is tightly wound around a paper tube Rc, and therefore has a considerable weight. In consideration of the workability of transporting the take-up roll Fr and loading onto the loading shaft 70, the loading position of the take-up roll Fr is usually located on the back side of the vertical bag-making filling / packaging machine 50 and at a low position near the installation floor. It is said that.

During operation of the bag-making filling and packaging machine 50, the loading shaft 70 is rotationally driven by a servomotor (not shown) for feeding, and the strip-shaped packaging material Fw is taken from the take-up roll Fr according to the consumption in the packaging machine. The feeding timing, feeding speed, and feeding amount are controlled. The strip-shaped packaging material Fw unwound from the take-up roll Fr is supplied to the former 51 via the packaging material joint portion 71, the tension lever portion 72, the adjust roll portion 73, and the like. In the packaging material supply path, a printing device 74 and various sensors for controlling the packaging material supply, as well as a plurality of guide rolls 75 are arranged at appropriate positions to guide the band-shaped packaging material Fw. In the tension lever portion 72, the band-shaped packaging material Fw having a certain length can be stored, the slack of the band-shaped packaging material Fw is absorbed, and the feeding of the band-shaped packaging material Fw from the take-up roll Fr is stopped. Also makes it possible to continue to manufacture several bags.

The paper splicing assisting device 1 according to the present invention is arranged in relation to the take-up roll Fr. In the vertical bag-making filling and packaging machine 50 shown in FIG. 4, the strip-shaped packaging material Fw unwound from the take-up roll Fr can be provided by replacing the band-shaped packaging material Fw before reaching the tension lever portion 72 with the packaging material joint portion 71.

FIG. 1 shows an embodiment of the paper splicing assisting device 1 according to the present invention as a perspective view. As shown in FIG. 1, the packaging machine frames 2 and 2 are arranged so as to face each other on the left and right behind a packaging machine such as the vertical bag-making filling and packaging machine 50. Although the outlines of the packaging machine frames 2 and 2 are drawn for the sake of explanation, those arranged on the back side in a partially transparent state are also shown in the figure. Further, although the packaging machine frames 2 and 2 are arranged in a pair facing each other in the figure, they may be one connected frame. The take-up roll support portion is arranged close to the wrapping machine frames 2 and 2, but is not shown because it is separated from the wrapping machine frames 2 and 2. Between the left and right packaging machine frames 2 and 2, there is a storage unit 3 immediately after feeding that can store the strip-shaped packaging material Fw immediately after being unwound from the take-up roll Fr and can release the stored strip-shaped packaging material Fw. It is provided.

Immediately after feeding, the storage unit 3 rotatably supports the first guide roll 4 and the second guide roll 5 parallel to each other around which the strip-shaped packaging material Fw is wound, and both guide rolls 4 and 5 at both ends thereof. It includes a pair of swing plates 6 and 6 that are swingably supported with respect to the packaging machine frames 2 and 2. The rotation axes of the first guide roll 4 and the second guide roll 5 are arranged horizontally, and the pair of swing plates 6 and 6 are arranged vertically and opposed to each other and symmetrically.

In order to swing the swing plates 6 and 6 to change the posture of the storage portion 3 immediately after feeding, the packaging machine frames 2 and 2 have a rotation operation lever 8 and 8 and guide portions 10 and 10 (described later). Is provided. That is, the rotation shaft 11 for the rotation operation levers 8 and 8 is hung between the packaging machine frames 2 and 2, and the rotation shaft 11 rotates to the packaging machine frames 2 and 2 at both ends thereof. It is possible to support the axis. Rotation operation levers 8 and 8 are fixedly attached to the rotation shaft 11 at the base ends 8b and 8b thereof in the vicinity of the opposite inner side of the packaging machine frames 2 and 2. The tips 8a and 8a of the rotation operating levers 8 and 8 are pivotally attached to the swing plates 6 and 6 by the pivot shafts 12 and 12 (the tips 8a and the pivot shaft 12 are shown only for the swing plate 6 on the front side). ing.

In order to rotate the rotation operation levers 8 and 8, an operation air operating mechanism 14 is swingably attached to one of the packaging machine frames 2 at the upper end portion thereof . The output rod 15 of the air operating mechanism 14 is pivotally attached to the base end 16b of the intermediate lever 16 attached to the rotating shaft 11, and the tip 16a of the intermediate lever 16 is the rotation operating lever 8 on the rotating shaft 11. It is fixedly attached to the base end 8b of . Therefore, when the output rod 15 of the air operating mechanism 14 advances / retracts from the cylinder (operation (a)) due to air pressure, the intermediate lever 16 rotates around the rotating shaft 11 together with the rotating shaft 11 ((b). ) Operation). The rotation of the rotation shaft 11 causes the rotation operation levers 8 and 8 to rotate around the base end 8b on either side of the packaging machine frame 2 (operation (c)), and both swing plates 6 , 6 are rocked. In each swing plate 6, the rotation axes of the first guide roll 4 and the second guide roll 5 and the pivot axis 12 of the tip 8a of the rotation operation lever 8 are dispersed near the vertices of a triangle as shown in the figure. It is formed on a triangular plate arranged in a row. Immediately after feeding, the storage unit 3 and the operating system from the air operating mechanism 14 to the rotation operating levers 8 and 8 are provided inside the packaging machine frames 2 and 2.

The guide portion 10 that regulates the swing of the swing plate 6 together with the pivot shaft 12 of each rotation operation lever 8 is provided by the groove fitting structure 20 and the rack and pinion mechanism 22 provided in each packaging machine frame 2. be. The roll axis of the first guide roll 4 is a common axis for both swing plates 6 and 6. In each wrapping machine frame 2, the groove fitting structure 20 is configured by being fitted into a vertical groove 21 formed so that the end of the roll shaft of the first guide roll 4 extends in the vertical direction in the wrapping machine frame 2. Has been done. A guide rack 23 in which the rack teeth 24 extend along the vertical groove 21 while facing the groove fitting structure 20 side is attached to the outer surface of each packaging machine frame 2, and the first guide roll 4 is attached. A pinion 25 is attached to a shaft end that penetrates each packaging machine frame 2 and projects outward. The rack and pinion mechanism 22 is configured such that the pinion 25 meshes with the rack teeth 24 of the guide rack 23. Since the roll shaft of the first guide roll 4 has entered the vertical groove 21, the mesh of the rack and pinion mechanism 22 will not be disengaged. Further, the operation of both swing plates 6 and 6 is ensured to be synchronized by the meshing of the rack and pinion mechanisms 22 and 22 on both sides. The first guide roll 4 has a strip-shaped packaging material Fw wrapped around its peripheral surface and is rotatable so that it can be fed while guiding the strip-shaped packaging material Fw, while the pinion attached to the shaft end. It has a double structure capable of two rotations so that the 25 can rotate while meshing with the rack teeth 24 of the guide rack 23.

The swing plates 6 and 6 are in a state of being linked to each other via the first guide roll 4 and the second guide roll 5, and have integrity. Since the tip 8a of the rotation operation lever 8 that moves in an arc shape is pivotally mounted on the swing plate 6 and is directly driven, the locus of the pivot shaft 12 of the rotation operation lever 8 in the swing plate 6 rotates. The locus of the tip 8a of the operating lever 8 is the same, and the movement path of the roll axis of the first guide roll 4 is restricted by the vertical groove 21 of the guide portion 10 and the rack and pinion mechanism 22 of the first guide roll 4. Therefore, when the air actuating mechanism 14 is operated and the rotation operation lever 8 is rotated, the swinging motions of the swinging plates 6 and 6 are uniquely determined and swinging in synchronization with each other. Therefore, the storage unit 3 immediately after feeding balances from both the left and right sides between the storage posture for storing the strip-shaped packaging material Fw and the storage / release posture for releasing the stored strip-shaped packaging material Fw, as its posture will be described later. Will be changed.

FIG. 2 shows a state (a) in which the strip-shaped packaging material Fw of the take-up roll Fr is used up, and a state (b) of paper splicing to the strip-shaped packaging material of the new take-up roll. The take-up rolls are installed in two upper and lower stages, and in FIG. 2A, the upper take-up roll Fr1 and the lower take-up roll Fr2 are wrapped in a band shape when the band-shaped packaging material Fw is used up. The feeding path of the material Fw is shown. Further, FIG. 2B shows an mode in which paper is spliced to the upper take-up roll Fr1 or the lower take-up roll Fr2, respectively. The take-up roll support portion may be loaded with the take-up roll Fr in one stage instead of the upper and lower two stages in response to a request such as packaging speed. When loading two take-up rolls, as shown in the figure, they are placed in a floor-saving space by arranging them side by side in two stages, and when the take-up rolls are replaced, new take-ups that have already been loaded are loaded. It can be immediately spliced to the roll.

Since the rotating shaft 11 rotatably supported by the packaging machine frames 2 and 2 is arranged below the vertical groove 21 in which the roll shaft (common shaft) of the first guide roll 4 is inserted, the rotation shaft 11 is rotated. The moving shaft 11 and the roll shaft of the first guide roll 4 are always in the vertical position where the roll shaft of the first guide roll 4 is in the upper position and the rotation shaft 11 is in the lower position regardless of the posture of the swing plate 6. They are arranged side by side. As shown in FIG. 2A, when the packaging machine is operated to pay out the strip-shaped packaging material Fw from the take-up roll Fr, the rotation operation lever 8 occupies a substantially upright position, and the swing plate 6 The first guide roll 4 occupies the position where the groove 21 of the guide portion 10 is most raised, and the second guide roll 5 of the swing plate 6 separates from the take-up rolls Fr and Fr and rotates with the first guide roll 4. It approaches the vertical plane connecting the shaft 11 from the winding roll Fr, Fr side, and occupies a position lower than the pivot shaft 12 of the rotation operation lever 8, and the storage portion 3 immediately after feeding is band-shaped packaged. It is in the storage posture P1 for storing the material Fw.

Immediately after feeding, when the storage unit 3 takes the storage posture P1, the first guide roll 4 and the second guide roll 5 are used with respect to the feeding direction XX in which the strip-shaped packaging material Fw is fed from the winding roll Fr toward the packaging machine. The arrangement is such that they are lined up in a direction substantially orthogonal to each other (vertical direction YY). In the storage posture P1 taken by the storage unit 3 immediately after feeding, the winding path of the strip-shaped packaging material Fw wound around both the guide rolls 4 and 5 becomes long due to such a positional relationship between the first guide roll 4 and the second guide roll 5. As a result, the strip-shaped packaging material Fw is in a stored state.

As shown in FIG. 2B, when the operation of the packaging machine is stopped and the end of the used strip-shaped packaging material Fw is spliced to the strip-shaped packaging material Fw of the new take-up roll Fr, the rotation operation lever is used. 8 occupies a position tilted sideways, the first guide roll 4 of the rocking plate 6 occupies the position where the groove 21 of the guide portion 10 is most lowered, and the second guide roll 5 of the rocking plate 6 is the first. It separates from the vertical plane connecting the guide roll 4 and the rotation shaft 11 toward the take-up rolls Fr and Fr, enters the space between the take-up rolls Fr and Fr, and has substantially the same height as the first guide roll 4. The storage unit 3 immediately after feeding out is in the storage / release posture P2 for releasing the stored band-shaped packaging material Fw.

Immediately after feeding When the storage unit 3 takes the storage / releasing posture P2, the first guide roll 4 and the second guide roll 5 are set in the feeding direction XX in which the strip-shaped packaging material Fw is fed from the winding roll Fr toward the packaging machine. On the other hand, they are arranged so that they are lined up in a direction substantially along the line. In the storage / release posture P2, due to such a positional relationship between the first guide roll 4 and the second guide roll 5, the winding path of the strip-shaped packaging material Fw wound around both guide rolls 4 and 5 is shortened, so that the strip-shaped packaging material is shortened. Fw is in the storage / release state. The old strip-shaped packaging material Fw, which has been released from the storage unit 3 immediately after feeding and is in a slackened state, can be pulled back to the upstream side, that is, the outer surface which is the printed surface of the new take-up roll Fr.

As described above, according to the paper splicing assisting device 1, the arrangement relationship between the first guide roll 4 and the second guide roll 5 with respect to the feeding direction of the strip-shaped packaging material Fw changes according to the posture taken by the storage unit 3 immediately after feeding. Therefore, the length of the winding path of the strip-shaped packaging material Fw wound around both guide rolls 4 and 5 changes, and the posture taken by the storage unit 3 immediately after feeding is the storage posture P1 taken to store the strip-shaped packaging material Fw. It is possible to switch between the storage and release posture P2 taken to release the storage of the stored strip-shaped packaging material Fw.

The amount of the packaging material stored in the storage unit 3 immediately after feeding is at least the amount of the old band-shaped packaging material Fro separated from the old winding roll Fr by releasing the storage of the band-shaped packaging material Fw in the storage unit 3 immediately after feeding. The amount is sufficient to allow the terminal Ef to be pulled back onto the take-up roll Fr of the new strip-shaped packaging material Fwn set on the take-up roll support portion. Therefore, the terminal Ef of the old band-shaped packaging material Fwo can be sufficiently pulled back onto the new winding roll Frn by the amount of the packaging material stored in the storage unit 3 immediately after feeding.

The procedure for joining paper is as follows. When the strip-shaped packaging material Fw unwound from the take-up roll Fr reaches the end, the end Ef of the old strip-shaped packaging material Fwo is separated from the old take-up roll Fro. The separation of the end Ef of the old strip-shaped packaging material Fwo is not limited to the case where the attachment end Ef of the old strip-shaped packaging material Fwo attached to the take-up paper tube of the take-up roll Fro is peeled off from the take-up paper tube. Even if some old strip-shaped packaging material Fwo is left in the winding paper tube, the old strip-shaped packaging material Fwo unwound from the old winding roll Fro is cut with a cutting tool such as a cutter. The case where the cutting end Ef is used is also included. In either case, the separation of the ends of the old strip-shaped packaging material Fwo is performed manually.

The terminal Ef of the old strip-shaped packaging material Fwo pulled back onto the new take-up roll Frn is manually spliced to the new strip-shaped packaging material Fwn on the new take-up roll Frn, for example, by using a thin adhesive tape Ta. Will be done. At that time, since the printed surfaces of the old and new strip-shaped packaging materials Fwo and Frn are both on the same outside, even if the strip-shaped packaging material Fw is an opaque packaging material such as an aluminum vapor-deposited film, the pattern matching of the printed surface is visually observed. You can splice the paper while checking with.

As described above, the wrapping machine to which the paper splicing assisting device 1 is applied is made of a vertical type capable of high-speed operation and having a former 51 as a cylinder making device, a vertical sealing portion 53, and a horizontal sealing portion 60. The bag filling / packaging machine 50 may be used, but a band-shaped packaging material Fw such as a tension lever portion (dancer roller portion) 72 is sufficiently stored in the packaging material supply path leading to the former 51 which is the downstream side of the storage portion 3 immediately after feeding. It may be provided with a strip-shaped packaging material supply channel storage unit that can be used. In such a case, the paper splicing assisting device 1 can be applied between the take-up roll support portion and the tension lever portion 72.

FIG. 3 shows a strip-shaped packaging material supply path storage section capable of sufficiently storing the strip-shaped packaging material Fw such as the tension lever section (dancer roller section) 72 in the packaging material supply path on the downstream side of the storage section 3 immediately after feeding. An example provided is shown. Immediately after feeding out, the storage unit 3 can pull back the old strip-shaped packaging material Fwo to the new winding roll Frn side without pulling back the strip-shaped packaging material Fw that has been fed out to the downstream side to the upstream side, but more. When it is desired to obtain the pull-back amount of the old strip-shaped packaging material Fwo that has been fed out to the downstream side of the storage section 3 immediately after feeding, for example, the tension lever section 72, the tension returning operation is performed by the tension lever section 72. It is also possible to pull it back to the Frn side of the new take-up roll.

FIG. 3B shows a state in which the swing angle θ2 of the tension lever portion 72 cannot be sufficiently taken by the peripheral equipment 81 such as a pump or a pipe when trying to obtain a larger pull-back amount. In such a case, as shown in FIG. 3A, the swing angle of the rotation center 80 of the tension lever portion 72 is such that the tension arm and the roller of the tension lever portion 72 do not interfere with the surrounding equipment 81. By lowering the height to the middle of the vertical range, a large swing angle θ1 can be secured. Since the amount of packaging material stored in the strip-shaped packaging material supply channel storage section increases corresponding to the large swing angle θ1, the amount of packaging material to be pulled back to the take-up roll side can be increased by loosening this.

Bag-making filling and packaging machines equipped with cylinder makers, vertical seals and horizontal seals usually allow workers to access the back side of the packaging machine for the replacement of take-up roll Fr and the paper splicing of packaging materials. It is installed in. When the take-up roll Fr is replaced, the work of connecting the start end of the replaced new take-up roll Fr to the end of the old strip-shaped packaging material that has been used is performed. In order to efficiently perform such paper splicing work, the paper splicing device 1 is located at a position where it is easy to perform the paper splicing work close to the take-up roll support portion in the packaging material supply path from the take-up roll support portion to the cylinder making machine. Be placed. Although the paper splicing assisting device 1 has been described as being applied to the vertical bag-making filling and packaging machine, it is clear that the paper splicing assisting device 1 may be applied to the horizontal bag-making filling and packaging machine.

1 Paper splicing auxiliary device 2, 2 Packaging machine frame 3 Immediately after feeding Storage section 4 1st guide roll 5 2nd guide roll 6, 6 Swing plate 8, 8 Rotation operation lever 8a, 8a Tip 10, 10 Guide section 11 times Dynamic shaft 12, 12 Pivot shaft 14 Air actuation mechanism 15 Output rod 16 Intermediate lever 16a Tip 20 Groove fitting structure 21 Vertical groove 22 Rack pinion mechanism 23 Guide rack 24 Rack teeth 25 Pinion 50 Vertical bag filling and packaging machine 51 Former 52 Filling cylinder 53 Vertical seal device 53a, 53a Vertical seal bar 54, 54 Packaging material feed device 55 Drive timing pulley 56 Driven timing pulley 57 Guide timing pulley 58 Timing belt 59 Suction hole 60 Horizontal seal cutter device 61 , 61 Horizontal seal heater member 62 Cutter mechanism 70 Loading shaft 71 Packaging material joint 72 Tension lever 73 Adjust roll 74 Printing device 75 Guide roll 80 Tension lever rotation center 81 Pump and other equipment P1 Storage posture P2 Storage Release posture F Wind-up roll Fro Old wind-up roll Frn New wind-up roll Fw Old band-shaped packaging material Fw Old band-shaped packaging material Fw New band-shaped packaging material Ef Termination Ta Adhesive tape fe, fe Both sides edge part Ft Cylindrical packaging material B bag Bp bag Package θ1, θ2 Swing angle

Claims (6)

It is provided with a take-up roll support portion for supporting the take-up roll from which the strip-shaped packaging material is wound, and a package in which the band-shaped packaging material unwound from the take-up roll is molded to wrap the product as a package. In the packaging machine to manufacture
The packaging machine frame close to the take-up roll support portion is provided with a roll-out immediate storage portion that can store the strip-shaped packaging material immediately after being unwound from the take-up roll and can release the stored strip-shaped packaging material. ,
The amount of the packaging material stored in the storage section immediately after feeding is such that at least the end of the strip-shaped packaging material separated from the take-up roll is released by releasing the storage of the strip-shaped packaging material in the storage section immediately after feeding. It is a paper splicing auxiliary device consisting of an amount that can be pulled back onto the take-up roll of the new strip-shaped packaging material set on the take-up roll support portion.
Immediately after feeding, the storage portion rotatably supports the parallel first and second guide rolls around which the strip-shaped packaging material is wound and both guide rolls at both ends thereof, and also with respect to the packaging machine frame. It is provided with a pair of swing plates that are swingably supported, and the swing plates have a long winding path for the strip-shaped packaging material to be wound around the first and second guide rolls. The storage of the strip-shaped packaging material is released by shortening the storage posture in which the strip-shaped packaging material is stored and the winding path of the strip-shaped packaging material wound around the first and second guide rolls. The posture can be switched between the posture and the posture.
A rotation operation lever rotatably attached to the packaging machine frame and the tip of which is pivotally attached to one of the swing plates in order to change the posture of the storage unit immediately after feeding, and the packaging. It is provided on the machine frame and is provided with a pair of guide portions that guide the movement of one of the guide rolls, which is a common axis for both swing plates.
Immediately after feeding, the storage portion has the storage posture and the storage portion by rotating both swing plates and moving the common shaft while being guided by both guide portions by operating the rotation operation lever. The posture can be switched between the released posture and the released posture.
Paper splicing auxiliary device in a packaging machine consisting of. Both guide portions are parallel to a groove fitting structure that fits into each vertical groove formed so that both ends of the common shaft extend in the vertical direction to the packaging machine frame and parallel to each vertical groove. The paper splicing assisting device in a packaging machine according to claim 1 , wherein the guide rack provided is composed of a rack and pinion mechanism in which pinions provided at the ends of the common shaft are engaged with each other. The first guide roll and the second guide roll are provided with respect to the feeding direction in which the strip-shaped packaging material is fed from the winding roll toward the packaging machine when the storage unit immediately after feeding takes the storage posture. The packaging machine according to claim 1 or 2 , wherein the wrapping machines are arranged in substantially orthogonal directions, and when the storage unit immediately after feeding takes the storage / releasing posture, the wrapping machines are arranged so as to be substantially arranged in the feeding direction. Paper splicing auxiliary device in. The common shaft is a roll shaft of the first guide roll, and the second guide roll is a rotation operation with the roll shaft of the first guide roll when the storage unit immediately after feeding takes the storage posture. The arrangement is such that the levers are arranged close to one vertical plane connecting the rotating shafts of the lever, and the storage portion is arranged away from the vertical plane when the storage portion immediately after feeding takes the storage release posture.
The paper splicing assisting device in the packaging machine according to any one of claims 1 to 3. The take-up roll support portion comprises loading one take-up roll or two take-up rolls side by side and rotatably supporting the take-up roll in the loaded state. The paper splicing assisting device in the packaging machine according to any one of claims 1 to 4 . The packaging machine includes a cylinder making machine that bends the strip-shaped packaging material into a substantially tubular packaging material, a vertical sealing portion that seals both side edge portions of the substantially tubular packaging material and forms the tubular packaging material into a tubular packaging material. A bag-making filling and packaging machine provided with a horizontal sealing portion for forming a bag by laterally sealing the tubular packaging material and manufacturing a bag packaging body filled with products, and storing the product immediately after feeding. The packaging material supply path to the cylinder making device on the downstream side of the section is provided with a band-shaped packaging material supply path storage section such as a dancer roller section and a tension lever section capable of sufficiently storing the band-shaped packaging material. The paper splicing assisting device in the packaging machine according to any one of claims 1 to 5 .

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