JP2017218171A - Bag making, filling, and packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag making, filling, and packaging machine preventing occurrence of a defect in bag-packaging articles due to a longitudinal seal defect, by using a lateral seal to prevent a seal defect, which may occur during ultrasonic sealing of the longitudinal seal, from remaining.SOLUTION: A bag making, filling, and packaging machine can suppress occurrence of a seal defect Es in longitudinal sealing Sc, which may be caused by ultrasonic vibration unnecessarily continuously applied to a specific packaged portion by a longitudinal sealing unit 60 while feeding of cylindrical package material Ft is suspended. Adjusting a longitudinal position of the longitudinal sealing unit 60 can cause the packaged portion where the seal defect Es may occur to be included in an area to be provided with a lateral sealing Se by a lateral sealing unit 40 when the feeding of the package material is performed by a package feeding unit 70. Even in the case the seal defect Es has occurred, the packaged portion is sealed with a lateral seal by the lateral sealing device 40 to be prevented from remaining.SELECTED DRAWING: Figure 5

Description

  The present invention vertically seals both side edge portions of a substantially cylindrical packaging material formed from a belt-shaped packaging material to form a cylindrical packaging material, and further fills the cylindrical packaging material with a product to perform horizontal sealing. The present invention relates to a bag making and filling machine for manufacturing a bag package, and more particularly, to a bag making and filling machine for performing vertical sealing by ultrasonic sealing.

  Conventionally, the present applicant has proposed a vertical bag making filling and packaging machine as shown in FIG. 6 as a bag making filling and packaging machine (see Patent Document 1). In the bag-filling and packaging machine 100 shown in FIG. 6 (a diagram based on FIG. 2 of Patent Document 1; reference numerals are in the 100s), the web-shaped packaging material Fw fed out from the winding roll has an appropriate tension. Is provided to the former 130. The web-shaped packaging material Fw is bent by the former 130 into a substantially cylindrical shape in which both side edge portions Fe and Fe are close to each other. A filling cylinder 150 whose upper portion is a hopper 151 is inserted into the former 130, and the bent packaging material passes through a gap having an annular cross section formed between the former 130 and the filling cylinder 150. To do.

  The packaging material that is bent into a substantially cylindrical shape and is sent so as to surround the outer periphery of the filling cylinder 150 is sealed at both side edge portions Fe and Fe by the vertical sealing device 160 to form a cylindrical packaging material Ft. The vertical seal device 160 is configured as an ultrasonic sealer, and includes an ultrasonic oscillator 162 having a horn 161 at the tip, and a disc-shaped anvil 164 disposed to face the horn 161. The ultrasonic oscillator 162 is pressed against the anvil 164 side by the actuator 163. The anvil 164 is rotationally driven by the motor 165 at the same speed as the film or slightly faster, and the part facing the horn 161 is sequentially changed. Both side edge portions Fe and Fe of the packaging material sandwiched between the horn 161 and the anvil 164 are welded by ultrasonic vibration.

  On the side of the filling cylinder 150, a belt-type packaging material feeding device 170 is disposed as a paper feeding means with the cylindrical packaging material Ft interposed therebetween, and the outer circumferential surface of the filling cylinder 150 and the belts 171 and 171 are arranged. By sandwiching the tubular packaging material Ft therebetween, the tubular packaging material Ft is fed downward by the travel of the belts 171 and 171. A package such as confectionery or the like is dropped and filled into a bag formed from the cylindrical packaging material Ft through the filling cylinder 150, and the two transverse heat seal bars 141 arranged opposite to each other constituting the transverse seal device 140 are arranged. No. 141 seals the tubular packaging material Ft to seal in the transverse direction, and seals the upper opening of the bag formed in advance, and forms the bottom of the subsequent bag. In this way, by repeating the operations of dropping, filling, and blocking food into the bag through the filling cylinder 150 in synchronism with the formation and timing of the bag, the bag package B that contains the package in the bag is continuously provided. Can be manufactured. When the horizontal sealing means 140 incorporates a cutter mechanism and performs horizontal sealing on the cylindrical packaging material Ft, the bag packaging body and the succeeding bag B, which are manufactured by preceding the cylindrical packaging material Ft, Can be cut and separated.

  According to the vertical bag making and filling machine 100, the web-like packaging material Fw is guided to the former 130 and wound around the filling cylinder 150 to form a packaging material that is bent into a substantially cylindrical shape, and is provided on the side of the cylinder. The packaging material is drawn by the packaging material feeding device 170, and the vertical sealing is performed by the vertical sealing device 160 including the ultrasonic oscillator 162 provided on the one side of the cylinder with respect to both side edge portions Fe and Fe combined on one side of the cylinder. To form a cylindrical packaging material Ft, and the laterally sealing device 140 provided below the cylinder opens and closes, and the top and bottom of the package to be dropped and filled into the filling cylinder 150 are laterally sealed (further cut by a cutting means). . The horizontal seal device 140 is installed on an elevating table that can move up and down as shown in the figure, so that the distance from the cylinder to the horizontal seal position corresponds to the size of the diameter of the cylinder to the extent that wrinkles do not occur in the cylindrical packaging material Ft. By changing the distance, the falling distance of the package can be made as short as possible. By making the packaging material feeding device 170 into a belt type structure having a vacuum function provided in pairs on the left and right sides of the cylinder, the actuator draws paper while vacuuming the cylindrical packaging material Ft by bringing the belt close to the cylinder by an actuator. It can also be done. The vertical sealing device 160 is not a long sealing means such as a bar heater but a spot-like sealing means. Fe and Fe are continuously sealed.

  In general, in a bag making and filling machine, the product as a package is originally intermittently charged, and accordingly, the bag making and filling machine 100 is also bent into a substantially cylindrical shape. A vertical sealing device 160 that seals both side edges Fe and Fe of the packaging material to form the cylindrical packaging material Ft, a horizontal sealing device 140 that welds and seals the cylindrical packaging material Ft transversely, and feed of the packaging material In many cases, intermittent operation is performed while temporarily stopping the operation. Such intermittent operation type bag making and filling and packaging machines ensure reliable sealing while stopped, especially with respect to horizontal seals, compared to continuous feed types that do not stop the feeding of packaging materials. There is sufficient time to perform, there is no need to provide a complicated drive mechanism and moving mechanism corresponding to continuous feeding, the operation and structure are simple, the manufacturing and operating costs of the packaging machine can be reduced, and still high There is a need. In particular, the vertical seal device 160 configured with an ultrasonic sealer can suppress the height of the device and can install the packaging machine in a space-saving manner as compared with a vertical seal device using heat sealing.

  However, in the bag making and filling and packaging machine 100 in which the packaging material feed is intermittently operated, when the vertical seal device 160 is constituted by an ultrasonic sealer, the period during which the packaging material feed is always temporarily stopped In the meantime, in the vertical sealing device 160, ultrasonic vibration may continue to be applied to a specific portion of the packaging material (both side edge portions Fe, Fe) more than necessary. In such a case, sealing failure such as defective sealing or perforation (indicated by Es in FIG. 6) may occur on both side edge portions Fe and Fe of the packaging material to be sealed. The lateral seal device 140 applies the lateral seal Se to the cylindrical packaging material Ft (the region where the lateral seal is planned is also indicated by Se). If such a sealing defect Es remains, the bag package B becomes a package with a poor seal.

  Furthermore, in the bag making and filling machine 100, for example, a state in which the position of the lateral seal to be applied to the tubular packaging material Ft coincides with the position of the lateral seal device 140 is set as the operation reference position of the packaging machine. When making it wait, the state occupied in the said driving | operation reference position is made into the standby state. Therefore, in particular, when restarting the bag-making filling and packaging machine once in a standby state, not only when the feed of the packaging material is intermittent feed, but also when it is continuous feed, When the packaging machine is in a standby state, ultrasonic vibration may continue to be applied to a specific packaging material location more than necessary, and there is a problem of a sealing failure similar to the above.

  Further, in the bag making and filling machine 100, generally, the region between the vertical seal device 160 and the horizontal seal device 140 is formed in a cylindrical package due to an impact of product input, a flutter of feeding of a packaging material, a packaging environment, and the like. This is a region where the feed of the material Ft becomes unstable. There is a possibility that a portion where the horizontal seal Se is to be subjected to the horizontal seal Se on the tubular packaging material Ft is not correctly subjected to the horizontal seal by the horizontal seal device 140, and a slight positional deviation may occur.

JP-A-01-124508

  Therefore, a cylindrical packaging material is formed by longitudinally sealing the packaging material formed in a substantially cylindrical shape with an ultrasonic seal, and then the product is filled in the cylindrical packaging material to perform lateral sealing. In a bag-filling and packaging machine that manufactures packaging, due to the fact that the ultrasonic vibration of the vertical seal continues to be applied to a specific packaging material part more than necessary, both sides of the packaging material to be sealed have poor seals and holes. There is a problem to be solved in that, when there is a possibility of occurrence of a sealing failure such as opening, the use of a lateral seal prevents the sealing failure, perforation, or the like from remaining as a cause of defective packaging.

  An object of the present invention is to solve the above-mentioned problems, and in the above-described bag-making filling and packaging machine, when the vertical seal is performed by ultrasonic sealing, the above-described seal failure or hole-opening seal is applied to the packaging material. Although there is a possibility that defects may occur, a bag-making filling and packaging machine that uses horizontal seals to prevent such seal defects from remaining in individual bag packages and prevent defective products from being produced as a package. Is to provide.

  In order to solve the above problems, a bag-filling and packaging machine according to the present invention includes an ultrasonic horn and an anvil that are capable of sandwiching both side edges of a substantially cylindrical packaging material bent from a strip-shaped packaging material. An ultrasonic vertical sealing device for forming a cylindrical packaging material by performing vertical sealing by welding the side edge portions by ultrasonic vibration, and a packaging material feeding device for feeding the cylindrical packaging material in its longitudinal direction; A bag-filling and packaging machine provided with a horizontal sealing device for performing horizontal sealing on the cylindrical packaging material filled with a product, wherein the ultrasonic vertical sealing device can be adjusted in position in the feeding direction of the packaging material The portion of the packaging material to which the ultrasonic vibration is applied by the ultrasonic longitudinal sealing device when the feeding of the cylindrical packaging material by the packaging material feeding device is stopped is the packaging material The cylindrical packaging material by the feeding device According feed, in a manner that the transverse seal is included in the area to be applied, it is characterized in that the transverse seal by the transverse sealing device is applied.

  According to this bag-filling and packaging machine, the ultrasonic vibration of the vertical seal is generated in a specific packaging material portion (specific side edge portions sandwiched between ultrasonic vertical sealing devices while the feeding of the cylindrical packaging material is stopped. ) May cause seal failures such as defective seals and perforations at specific side edges of the packaging material due to continued addition to the unnecessarily large amount. The vertical position of the ultrasonic vertical sealing device is adjusted so that a certain part is included in the area where the cylindrical packaging material is fed by the packaging material feeding device and then the horizontal sealing device performs the horizontal sealing. Has been. Therefore, the packaging material part that may cause a sealing failure is subjected to a lateral sealing by the lateral sealing device in a manner that is included in the lateral sealing region, and even if a sealing failure occurs, it is overwritten by the lateral sealing. Since it is sealed, it is possible to avoid a sealing failure from remaining in the bag package.

  When the specification of the bag package has been changed and the vertical pitch length of the package has changed, etc. It may occur that the packaging material portion is not included in the lateral sealing area where the cylindrical packaging material is subsequently applied by the lateral sealing device. In such a case, by adjusting the position of the ultrasonic vertical sealing device in the packaging material feeding direction, the specific packaging material portion can be adjusted to be included in the horizontal sealing region applied by the horizontal sealing device. it can.

  In this bag making filling and packaging machine, the cylindrical packaging material can be fed intermittently or continuously by the packaging material feeding device. When the packaging material is fed intermittently, both side edges sandwiched by the ultrasonic vertical seal device receive ultrasonic vibration more than necessary while the packaging material feed is intermittently stopped. Although it becomes the specific packaging material part which may generate | occur | produce a sealing defect by continuing, even in such a case, it can be sealed so that the sealing defect which may arise in a vertical seal is overwritten by a horizontal seal. In addition, even when the packaging material feed is a continuous type, when the packaging machine is in a standby state or when the operation is temporarily stopped, the same phenomenon as the case where the packaging material feed is intermittent feed may occur. However, even in such a case, it is possible to seal so that a seal failure that may occur in the vertical seal is overwritten by the horizontal seal.

  In this bag making filling and packaging machine, the horizontal sealing device can incorporate a cutter mechanism that cuts into the bag package and the subsequent bag package manufactured in advance between the horizontal seal regions. When the cutter mechanism is incorporated in the horizontal seal device, the horizontal seal region applied to the cylindrical packaging material can be separated into the bag package body manufactured in advance and the subsequent bag package body. A portion of the packaging material that may cause a sealing failure is generated, and even if it is cut at that portion by the cutter mechanism, it does not remain as a sealing failure in the preceding and subsequent bag packages.

  According to the bag-making filling and packaging machine of the present invention, an ultrasonic vertical sealing device that performs vertical sealing by welding both side edges of a substantially cylindrical packaging material by ultrasonic vibration, and the cylindrical packaging material in its longitudinal direction A bag making filling and packaging machine equipped with a packaging material feeding device and a horizontal sealing device for laterally sealing a cylindrical packaging material, and the ultrasonic vertical sealing device is installed so that its position can be adjusted in the packaging material feed direction The portion of the packaging material to which the ultrasonic vibration is applied by the ultrasonic vertical sealing device when the feeding of the cylindrical packaging material by the packaging material feeding device is stopped follows the feeding of the cylindrical packaging material by the packaging material feeding device. Since the horizontal seal is provided by the horizontal seal device in a mode included in the region where the horizontal seal is applied, the ultrasonic wave is applied when the feeding of the cylindrical packaging material by the packaging material feeding device is stopped. For vertical sealing with vertical sealing device Therefore, the portion of the packaging material that may cause a sealing failure is present in an area where the lateral sealing is performed later by the lateral sealing device, and the lateral sealing is overwritten or cut in the part. Therefore, it is possible to avoid the bag package from becoming a defective seal.

FIG. 1 is a perspective view showing an embodiment of a bag making and filling machine according to the invention. It is a front view which shows the combination state of the former | foamer, filling cylinder, and vertical seal apparatus which are used for the bag making filling packaging machine shown in FIG. It is explanatory drawing which shows opening and closing of the ultrasonic longitudinal seal apparatus used for the bag making filling packaging machine shown in FIG. It is sectional drawing regarding the ultrasonic longitudinal seal apparatus used for the bag making filling packaging machine shown in FIG. It is a figure explaining an example of the operation | movement aspect of the bag making filling packaging machine by this invention. It is a perspective view which shows an example of the conventional bag making filling packaging machine which performs vertical sealing by ultrasonic sealing.

  Embodiments of a bag making and packaging machine according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an embodiment of a bag making filling and packaging machine according to the present invention, and FIG. 2 is a diagram showing a former, a filling cylinder and an ultrasonic vertical sealing device used in the bag making filling and packaging machine shown in FIG. It is a front view which shows a combination state. Moreover, about the bag making filling packaging machine shown in FIG. 1, explanatory drawing which shows opening and closing of an ultrasonic vertical sealing apparatus is shown by FIG. 3, and sectional drawing of the ultrasonic vertical sealing apparatus is shown by FIG. . The basic structure of the bag making and filling machine shown in FIG. 1 is the same as the conventional bag making and filling machine described with reference to FIG. In this embodiment, the bag making and packaging machine is charged through a filling cylinder in which products to be packaged are placed vertically, and a bag is produced from the packaging material while the bag is filled with the product to produce a bag package. It is embodied as a vertical bag making filling and packaging machine.

  In the bag-filling and packaging machine 1 shown in FIGS. 1 to 4, the belt-shaped packaging material Fw is wound up in a roll shape, and the belt-shaped packaging material Fw is unwound from the winding roll Fr and partly stored. In addition, a feeding mechanism 10 that applies appropriate tension, an attachment device 20 such as a printing device that performs printing on the belt-shaped packaging material Fw, and a former that bends the continuously-rolled belt-shaped packaging material Fw into a substantially cylindrical packaging material. 30. A longitudinal sealing device 60 for forming a cylindrical packaging material Ft by applying a vertical seal to the packaging material bent into a substantially cylindrical packaging material, and in a transverse direction to the cylindrical packaging material Ft formed by applying a vertical seal. A horizontal sealing device 40 that performs sealing, a filling cylinder 50 that is inserted into the former 30 and into which a package is placed, and a suction-type packaging material feeding device 70 that feeds the cylindrical packaging material Ft are provided.

  As shown in FIG. 1, the packaging material feeding device 70 is a suction paper feeding device that feeds paper while sucking the cylindrical packaging material Ft from the outside thereof. Specifically, the packaging material feeding device 70 includes paper feeding belts 71 and 71 that are arranged to face both sides in the diameter direction of the cylindrical packaging material Ft. Each paper feed belt 71 is formed with a plurality of suction holes 72 arranged in a line in the longitudinal direction at the center in the width direction. Each paper feed belt 71 is wound around a drive pulley 73, a driven pulley 74, and a guide pulley 75 that are driven by a motor. A suction means (not shown) sucks air through the suction hole 72. With the driving force from the driving pulley 73, the cylindrical packaging material Ft that contacts the paper feeding belt 71 is fed downward while sucking from the outside. The cylindrical packaging material Ft fed by paper moves relative to the vertical sealing device 60, whereby the side edge portions Fe and Fe are continuously sealed as the vertical seal Sc.

  As shown in FIG. 2, the former 30 has a sailor portion 31 that bends the belt-like wrapping material Fw in a substantially cylindrical shape, and a wrapping material that is connected to the sailor portion 31 and bent in a substantially cylindrical shape ( Hereinafter, it is provided with a cylindrical portion 32 through which the “substantially cylindrical curved packaging material” is passed. The sailor part 31 is formed on the curved sailor body 33 that acts on the belt-shaped packaging material Fw and bends in a substantially cylindrical shape, and the tip edge portions 34a, 34a of the sailor body 33 that face each other, and the belt-shaped packaging material Fw. The both side edge portions Fe and Fe are overlapped, and the overlapped portion 34 that allows the side edge portions Fe and Fe that are overlapped to pass through is overlapped. The sailor body 33 wraps around the cylindrical portion 32 in a smooth curved shape from the back side to the front side, and the overlapping portion 34 is formed at the lower front end of the sailor body 33.

  The cylindrical portion 32 includes a cylindrical main body 35 that extends below the overlapping portion 34 of the sailor portion 31 while remaining in a cylindrical shape and terminates at a lower end 36. The cylindrical main body 35 is formed with a slit 37 that is connected to the overlapping portion 34 and extends so as to extend vertically and through which the overlapping side edge portions Fe and Fe protrude to the front side. Yes.

  The filling cylinder 50 inserted into the former 30 is a cylindrical body made of metal (stainless steel), and is inserted into the cylindrical portion 32 of the former 30 with a gap 51 therebetween. The formed packaging material can pass through a gap 51 between the inner peripheral surface of the cylindrical portion 32 and the outer peripheral surface of the filling cylinder 50. In the example shown in FIG. 2, the filling cylinder 50 has a form that extends further downward from the lower end 36 of the cylindrical portion 32 of the former 30. The filling cylinder 50 also has a function of feeding the cylindrical packaging material Ft in cooperation with the packaging material feeding device 70 on the outer peripheral surface thereof.

  The vertical sealing device 60 is disposed at a position directly below the overlapping portion 34 of the former 30, and is an ultrasonic vertical sealing device including an ultrasonic horn 61, an ultrasonic generator 62, and an anvil 64. The ultrasonic horn 61, the ultrasonic generator 62, and the anvil 64 are unitized as an ultrasonic seal unit. The vertical sealing device 60 applies the vertical seal Sc by pressurizing and vibrating and melting and welding both side edge portions Fe and Fe of the moving packaging material while maintaining the state of protruding to the front side through the slit 37. The vertical sealing device 60 is a sealing device for spot-sealing both side edge portions Fe and Fe, but the substantially cylindrical bent packaging material is moved relative to the vertical sealing device 60 in the vertical direction by the packaging material feeding device 70. As a result, the continuous vertical seal (ultrasonic seal) Sc is applied to the side edge portions Fe and Fe, and the substantially cylindrical bent packaging material is formed into the cylindrical packaging material Ft. The vertical sealing device 60 has a reduced height as compared with a bar-shaped vertical heat sealing device, which contributes to shortening the height of the packaging machine.

  The ultrasonic horn 61 is a substantially rod-shaped body made of metal, and protrudes toward the anvil 64 side from the ultrasonic wave generation unit 62 on the base end side. The anvil 64 is a metal cylinder, and the circumferential surface faces the tip of the ultrasonic horn 61. In the ultrasonic generator 62, high-frequency electrical energy is converted into mechanical vibration energy by a converter composed of a piezoelectric element, the mechanical vibration energy is amplified by a booster, and further ultrasonically directed toward the anvil 64 through a resonator called a horn 61. Vibration is transmitted. Both side edge portions Fe and Fe sandwiched between the ultrasonic horn 61 and the anvil 64 are generated by rubbing the boundary surfaces by vibration energy transmitted to the ultrasonic horn 61. It is melt welded by the frictional heat.

  As shown in FIG. 1, the lateral sealing device 40 includes two lateral heat seal bars 41, 41 arranged to face each other, and pressurizes and wraps the tubular packaging material Ft between the lateral heat seal bars 41, 41. By heating, a transverse seal (lateral seal Se) is performed to seal the upper opening of the bag P1 formed in advance, and to form the bottom of the subsequent bag P2. A cutter device 45 is incorporated in the horizontal sealing device 40 as in the case of a conventional packaging machine. As the cutter device 45, a cutter blade 46 is incorporated in one side heat seal bar 41 so as to be able to advance and retreat, and in the other side heat seal bar 41, in order to cut the sandwiched packaging material Ft, A groove 47 into which the advanced cutter blade 46 enters is formed.

  Details of the vertical sealing device 60 will be described later with reference to FIGS. 3 and 4. The vertical seal device 60 is provided in a state of being accommodated inside the rotation arm 65, and the rotation arm 65 is rotated with respect to an attachment arm 67 attached to an apparatus frame (not shown) by a hinge 66. It is provided to be movable. The vertical seal device 60 can be operated by placing the rotating arm 65 at the loading position (a) in FIG. The vertical bag making and packaging machine 1 can be set and maintained by rotating from the loading position (a) and placing it in the retracted position (b).

  As shown in FIG. 4A, the mounting arm 67 includes a screw mechanism 68 so that the turning arm 65 and the hinge 66 can be advanced and retracted relative to the cylindrical portion 32. The screw mechanism 68 includes a motor 68a, a gear mechanism 68b that transmits the rotation output thereof, and a screw shaft 68c that is rotated by the gear mechanism 68b. The rotation of the screw shaft 68c causes the hinge 66 and the rotating arm 65 to move forward and backward with respect to the cylindrical portion 32 of the former 30 together with the support 66a screwed into the screw shaft 68c. The position of the vertical sealing device 60 with respect to both side edge portions Fe and Fe of the packaging material can be adjusted by the adjusting operation by the rotation of the screw shaft 68c in accordance with the size of the former 30 corresponding to the bag design and the like.

  In the present embodiment, the position of the vertical seal device 60 can be adjusted in the vertical direction. For example, a screw mechanism 88 equivalent to the screw mechanism 68 shown in FIG. 4A can be used as the vertical adjustment mechanism as a mechanism that makes it possible to adjust the position of the vertical seal device 60 in the vertical direction. That is, as shown by way of example in FIG. 4B, a motor is provided so that a rotating arm 65 that accommodates a vertical seal device 60 as an ultrasonic seal unit can be vertically adjusted with respect to an attachment arm 67. A screw mechanism 88 including a gear mechanism 88b and a screw 88c is provided. That is, the hinge 66 is the screw shaft 88c, the motor 88a is installed on the support 66a, and the output rotation of the motor 88a is transmitted to the screw shaft 88c via the gear mechanism 88b. By rotating the screw shaft 88c, the rotational arm 65 can be moved in the vertical direction together with the vertical seal device 60 with respect to the support 66a. Note that the screw mechanism 88 is an example, and it goes without saying that various other modifications can be applied to the mechanism that allows the vertical seal device 60 to change its position in the vertical direction.

  FIG. 5 illustrates an example of the operation mode of the bag making filling and packaging machine 1. FIG. 5 is a perspective view basically showing only the main structure of the bag making and filling and packaging machine shown in FIG. 1. Therefore, the same reference numerals as those used in FIG. Detailed description will be omitted again. As shown in FIG. 5, while the feed of the cylindrical packaging material Ft is stopped, the ultrasonic vibration by the vertical sealing device 60 is caused by a specific packaging material portion (both side edge portions Fe sandwiched between the ultrasonic vertical sealing devices). If it is added to the specific part of Fe, Fe) more than necessary, there is a possibility that seal defects Es such as defective seals and perforations will occur in the specific parts of the side edge parts Fe, Fe ( FIG. 5 is an extreme example in which a seal failure Es occurs in the vertical seal every intermittent stop).

  In the present embodiment, since the installation position of the vertical seal device 60 can be adjusted, the portion of the packaging material that may cause the sealing failure Es of the ultrasonic vertical seal is then moved by the packaging material feeding device 70. When the cylindrical packaging material Ft is fed, the tubular packaging material Ft can be brought into the region of the horizontal seal Se by the horizontal seal device 40. That is, in the packaging material portion where the sealing failure Es may occur, a region where the horizontal seal Se will be applied in the future by the horizontal seal device 40 by adjusting the installation position of the vertical seal device 60. After that, when the feed of the cylindrical packaging material Ft is actually resumed and the lateral sealing is actually performed by the lateral sealing device 40, the packaging material part that may cause the sealing failure Es is Just arrived at the position where the horizontal seal is applied, and the seal is performed so as to be overwritten by the horizontal seal.

  The mounting position of the vertical sealing device 60 is basically such that the distance between the mounting position and the horizontal sealing position by the horizontal sealing device 40 is an integral multiple of the pitch length L of the bag P (bag packaging body B) (illustrated). In this example, it is set to be 3 times). Since the packaging material between the position of the vertical sealing device 60 and the position of the horizontal sealing device 40 is also a zone where feeding is unstable, such a dimensional regulation can be adapted according to individual circumstances. There is also a need to do. By making it possible to adjust the mounting position of the vertical seal device 60 in the vertical direction, it is possible to make a fine adjustment in such a case.

  When the specification of the bag package B is changed and the vertical pitch length L of the bag P is changed, the ultrasonic vibration of the vertical seal device 60 is stopped when the feeding of the tubular packaging material Ft is stopped. It may happen that the particular packaging material part that receives the cylindrical packaging material Ft is not included in the region of the lateral seal Se that is subsequently applied by the lateral seal device 40. Even in such a case, by adjusting the position of the vertical sealing device 60 in the packaging material feeding direction, the specific packaging material portion is included in the region of the horizontal seal Se applied by the horizontal sealing device 40. Can do.

  The tube packaging material Ft may be fed intermittently or continuously. In the case of intermittent feeding, the stop of the feeding of the cylindrical packaging material Ft that is likely to cause the sealing failure Es occurs as an intermittent stop for each packaging cycle. In the case of continuous feeding, the feeding of the cylindrical packaging material Ft is stopped. This stop occurs when the bag making filling and packaging machine is temporarily stopped or in a standby state.

  As described above, according to the embodiment of the present invention, the specific packaging material portion that may cause the sealing failure Es is applied to the region of the lateral seal Se by using the lateral seal Se of the bag P (bag packaging body B). It is made to cover with a horizontal seal as an aspect to be included. Even if a sealing failure Es has occurred in a specific packaging material portion, it is sealed or cut so as to be overwritten at the time of horizontal sealing, so the sealing failure Es does not remain in the bag package B. It is possible to avoid the occurrence of defective products of the bag package B due to defective sealing. In the present embodiment, the horizontal sealing device 40 is a heating type, but may be an ultrasonic type horizontal sealing device.

DESCRIPTION OF SYMBOLS 1 Vertical type bag making packaging machine 10 Feeding mechanism 20 Attached apparatus 30 Former 31 Sailor part 32 Cylindrical part 33 Sailor main body 34 Overlapping part 34a, 34a End edge part 35 Cylindrical main body 36 Lower end 37 Slit 40 Horizontal sealing means 41, 41 Heat seal bar 45 Cutter device 46 Cutter blade 47 Groove 50 Filling cylinder 51 Clearance 60 Vertical seal device (ultrasonic seal device) 61 Ultrasonic horn 62 Ultrasonic wave generator 64 Anvil 65 Rotating arm 66 Hinge 66 66a Support body 67 Mounting arm 68 Screw mechanism 68a Motor 68b Gear mechanism 68c Screw shaft 70 Packaging material feeder 71 Paper feed belt 72 Suction hole 73 Drive pulley 74 Driven pulley 75 Guide pulley 88 Screw mechanism 88a Motor 88b Gear mechanism 88c Screw shaft 100 Vertical bag making and packaging machine 130 Former 140 Horizontal seal device 141 Horizontal heat seal bar 150 Filling cylinder 151 Hopper 160 Vertical seal device 161 Horn 162 Ultrasonic oscillator 163 Actuator 164 Anvil 165 Motor 170 Packaging material feeding device 171 Belt Fr Winding roll Fw Band-shaped packaging material Fw Web-shaped packaging material Fe , Fe Both side edges Ft Cylindrical packaging material P, P1, P2 Bag L Package length B Bag package Sc Vertical seal Se Horizontal seal Es Seal failure

Claims (3)

It has an ultrasonic horn and an anvil that can sandwich both side edge portions of a substantially cylindrical packaging material formed from a belt-like packaging material, and welds the side edge portions by ultrasonic vibration to provide a vertical seal. Ultrasonic vertical sealing device for forming into a cylindrical packaging material, a packaging material feeding device for feeding the cylindrical packaging material in its longitudinal direction, and a horizontal seal for applying a horizontal seal to the cylindrical packaging material filled with a product In a bag making and filling machine equipped with a device,
The ultrasonic vertical sealing device is installed so as to be position-adjustable in the feeding direction of the packaging material, and the ultrasonic vertical sealing device when the feeding of the cylindrical packaging material by the packaging material feeding device is stopped The part of the packaging material to which the ultrasonic vibration is applied is included in an area where the lateral seal is applied in accordance with the feeding of the cylindrical packaging material by the packaging material feeding device. A bag making filling and packaging machine characterized in that a horizontal seal is applied. The bag making and filling and packaging machine according to claim 1, wherein feeding of the cylindrical packaging material by the packaging material feeding device is intermittent feeding or continuous feeding. 2. The cutter mechanism according to claim 1, wherein the lateral sealing device incorporates a cutter mechanism that cuts into the bag package body and the subsequent bag package body that are manufactured in advance between the lateral seal regions. The bag making filling and packaging machine according to 2.

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