JP5105783B2 - Vertical sealing device for filling and packaging machine - Google Patents

Description

  The present invention relates to a vertical sealing device installed in a filling and packaging machine that continuously manufactures a packaging bag filled with contents as a bag by heat-sealing a long band-shaped film. The present invention relates to a vertical sealing device of a filling and packaging machine suitable for manufacturing a package in a form in which side-sealing and a filling portion divided into two in the lateral direction are arranged side by side.

  Conventionally, for example, in the process of continuously taking out a long belt-shaped film wound on a flowable product such as a liquid and transporting it from the upper side to the lower side, the both ends are folded into two from the folding device, and the vertical sealing device The folded end is sealed and formed into a cylindrical shape, and the packaging film is sealed in a lateral direction by a lateral sealing device to form a bag, and a filling device nozzle is inserted into this to fill the contents, 2. Description of the Related Art A filling and packaging machine is known that seals using a horizontal sealing device, cuts and separates a package body continuously formed in this way by a cutting device, and continuously forms each package body.

  And, since the vertical seal device is usually used to seal the folded end portion to form a cylinder (so-called three-way seal), it has one pair of front and rear vertical seal rolls. A packaging form (so-called four-way seal) is known that not only seals one side in the longitudinal direction but also seals both ends including the folded portion for the purpose of improving appearance and durability. No. 76003 is presented.

  Further, it is known that a plurality of sets of vertical seal rolls are provided so that different types of materials to be filled in, for example, seasonings are divided into one package in the vertical direction and filled. It is presented in the gazette.

  And the filling and packaging machine provided with a plurality of conventionally used vertical seal rolls needs to move at least one vertical seal roll in the horizontal direction in order to cope with packaging bodies of various dimensions. As shown in FIG. 8, the vertical seal rolls 3a and 3b respectively disposed on the pair of rotating shafts 1a and 1b having rod-shaped heaters 2a and 2b inside are movable along the rotating shafts 1a and 1b. In general, the seal rolls 3a and 3b are fixed to a desired position by a set screw 4a.

Therefore, since the all of the vertical seal rolls 3a, 3 b which are fixed the rotary shaft 1a, a 1b, the pressure adjustment between the seal rolls will be carried out collectively by the rotary shaft 1a, 1b, vertical sealing rolls 3a, can not separate the pressure adjusted for each 3 b.

Also, heated vertical seal rolls 3a disposed to the rotary shaft 1a by a heater 2a disposed on the rotary shaft 1a, the 3b, and vertical seal rolls 3a, 3 b disposed on the rotary shaft 1b by a heater 2b arranged on the rotary shaft 1b since those, it is very difficult to each vertical seal rolls 3a, 3 b are individually adjustable temperature.

Furthermore, when the vertical seal rolls 3a and 3b are moved to change the seal width, it is necessary not only to make the alignment of 3a, 3a and 3b and 3b opposite to each other, but also the vertical seal rolls 3a, 3b, In order to change the position of 3b, it is necessary to loosen the set screw 4a and tighten it again. However, during use, the vertical seal device is heated by the heaters 2a and 2b and is heated to a high temperature. sex is poor, there is a problem that shall put the time to once cool, especially the adjustment of the vertical seal rolls 3a, changing the position of the 3b position change position actually use the filmstrip long There is also a problem that it is extremely troublesome.
Japanese Patent Publication No. 7-76003 JP 2004-115039 A

  An object of the present invention is to solve the above-described problems, and in a filling and packaging machine provided with a plurality of vertical seal rolls, a change in position in the horizontal direction and a temperature for each of the vertical seal rolls. Further, the present invention provides a vertical sealing device for a filling and packaging machine that can be independently set for pressure adjustment and has excellent operability.

  The vertical sealing device of the filling and packaging machine according to the present invention, which has been made to solve the above-mentioned problems, is a horizontal seal that performs a horizontal seal in the process of continuously taking out a belt-shaped packaging film and transferring it from above to below. A four-side seal or a lateral direction having a longitudinal seal device comprising three longitudinal seal rolls of an apparatus and a base longitudinal seal roll, an intermediate longitudinal seal roll, and a longitudinal seal roll at the distal end arranged in parallel in the lateral direction. A vertical sealing device for a filling and packaging machine that fills a packaged bag that has been divided and sealed, and is arranged in a direction perpendicular to the packaging film by being suspended from a fixed plate fixed to a part of the case body The intermediate vertical seal roll and the front vertical seal roll are fixed to the base vertical seal roll with their axes shifted from each other. Supported by a support member slidable along a support rod projecting from the substrate on the packaging film arrangement side, the arrangement position can be moved in the horizontal direction for each of the vertical seal rolls, and the tip is the intermediate vertical film. By rotating at least one of a pair of adjustment screws that are respectively connected to the support members of the seal roll and the front vertical seal roll and screwed through the substrate, the intermediate vertical seal roll and the front vertical seal roll are rotated. Are respectively arranged so as to be individually movable in the horizontal direction on the substrate holding the vertical seal roll at the base end.

  Further, the base end vertical seal roll is fixed to the base plate of the filling and packaging machine, and the intermediate vertical seal roll and the front end vertical seal roll are respectively displaced from each other in the axis, and the base end vertical seal roll is The roll part is fixed to a pair of rotating shafts held by a holding member slidable along a support shaft protruding from the holding substrate on the packaging film arrangement side, and the arrangement position is independently moved in the horizontal direction. can do.

  Furthermore, the temperature can be adjusted for each vertical seal roll by arranging a unique heater on the rotary shaft of each vertical seal roll of the base vertical seal roll, intermediate vertical seal roll, and front vertical seal roll. It is possible to provide a reliable seal by making it possible to adjust the pressure between the roll portions facing each other for each of the base end vertical seal device, the intermediate vertical seal device and the front end vertical seal device. it can.

Furthermore, the intermediate vertical seal roll is configured such that each rotary shaft is connected to the rotary shaft of the vertical seal roll at the base end through a universal joint so as to be slidable in the axial direction. It is possible to drive using a drive source provided in the vertical seal roll at the base end in a state in which the horizontal movement and the pressure adjustment are possible.

  In addition, the horizontal movement of the intermediate vertical seal roll and the vertical seal roll at the front end can be adjusted by an adjustment screw provided on the substrate to which the vertical seal roll at the base end is fixed, so that it can be easily adjusted by a desired distance. Can be moved and operated.

  According to the present invention having the above means, a four-side seal having a vertical seal roll comprising three vertical seal rolls of a base end vertical seal roll, an intermediate vertical seal and a front end vertical seal roll arranged side by side in the horizontal direction. Or, in a vertical sealing device of a filling and packaging machine that fills a packaging bag that is divided and sealed in the horizontal direction. Not only is it easy to move and operate the middle and tip vertical seal rolls in the horizontal direction. Pressurization and temperature can be adjusted individually for the three vertical seal rolls at the base, middle and end, respectively, and it is possible to easily cope with various four-side seals or packaging bags that are divided and sealed in the horizontal direction.

  Hereinafter, embodiments of the present invention shown in the drawings will be described.

FIG. 1 shows an outline of a filling and packaging machine 2 using a vertical sealing device 1 according to the present invention, and a long and belt-like packaging film F is wound in a roll shape in a box-shaped case body 21. The wrapping film original fabric 3 is disposed so as to be replaceable, and a guide device 4 for taking out the wrapping film F wound around the wrapping film original fabric 3 is disposed upward, and a film folding device is disposed below the guide device 4. 5 is arranged, and further below that, a vertical sealing device 1, a filling device 6, a notch forming device 7, a horizontal sealing device 9, a cutter device 10 and the like according to the present invention are arranged.

The filling and packaging machine 2 includes a stacking unit and a folding unit in which the packaging film F that is continuously transferred from the packaging film original fabric 3 through the guide device 4 is folded by the film folding device 5 with both ends thereof folded. if necessary, further their intermediate, vertical seal roll 11 of longitudinal sealing device a provided base end 1 is the present invention, the intermediate of the vertical seal rolls 12 and the leading end of the vertical seal rolls 13 seal Then, after the packaging film F is sealed in the lateral direction by the lateral sealing device 8 and filled with the filling material from the filling device 6, the packaging film F is transferred, and further by the lateral sealing device 8. A sealed and continuous four-sided seal or a divisionally sealed packaging bag is formed, and if necessary, it is cooled by the cooling roll device 9 and then individually cut by the cutter device 10 and separated. It is to automatically form individual packaging bag with.

  2 to 7 show the vertical seal device 1 in this embodiment in detail. FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a perspective view, FIG. 6 is a partial sectional perspective view of the main part, and FIG. 7 is an exploded perspective partial view of the distal end of the vertical seal roll 11 at the base end.

  The vertical seal device 1 according to the present invention is, for example, a vertical seal at the base end for forming a seal at both ends of the packaging film F folded by the film folding device 5 shown in FIG. A roll 11, an intermediate vertical seal roll 12, and a vertical seal roll 13 at the tip are disposed.

  More specifically, the vertical seal roll 11 at the base end is, for example, a vertical seal for sealing a folded portion of a folded packaging film in a filling and packaging machine that performs normal three-way sealing in this embodiment shown in FIG. (Not shown) is disposed at a position corresponding to the packaging film F shown in FIG. 1 and suspended from a fixing plate 22 fixed to a part of the case body 21 shown in FIG. A pair of rotary shafts 112 and 112 are pivotally supported by fixing members 111 and 111 arranged in the front-rear direction with a predetermined distance between each other and at least one of which can be moved in the front-rear direction. In addition, a pair of rolls for sealing with the packaging film F shown in FIG. 1 interposed between the rotary shafts 112 and 112 on the inner side (the packaging film side) of the substrate 23. 113, 113 is attached.

  In particular, when one of the fixtures 111, 111 on which the pair of rotating shafts 112, 112 are supported is movable, the pressure between the roll portions 113, 113 attached to the rotating shafts 112, 112 can be reduced. It can be adjusted separately from the vertical seal rolls 12 and 13.

  Further, gears 114, 114 that mesh with each other are attached to the outside of the substrate 23 of the rotary shafts 112, 112. The gear 116 is engaged and the pair of rolls 113 and 113 are rotated by the drive source 115 to form a vertical seal at the base end on the packaging film F. In the present embodiment, the rotating shafts 112 and 112 are formed in a hollow shape, and the heaters 117 and 117 inserted from the base end side are disposed inside the roll portions 113 and 113, respectively. The necessary amount of heat can be directly applied to the roll portions 113, 113, sealing can be performed reliably and useless heat generation can be prevented.

  In the drawing, reference numeral 118 denotes a rotating terminal for supplying a predetermined power to the heater 117.

Next, a description will be given tips of the vertical sheet Lumpur roll 13 necessary when the present embodiment performs the four-side sealed.

Vertical sheet Lumpur roll 13 of the tip, be one that is used to vertical seal primarily edges folded side of the packaging film F shown in FIG. 1, toward the inside in the substrate 23 vertical For example, a pair of rotating shafts 135 is fixed by fixing members 134 and 134 arranged in the front-rear direction in a plate-like support member 133 fixed to the tip of a tubular slide member 132 fitted into, for example, three support rods 131. 135 are supported on the inner side (packaging film side) of the support member 133 of the rotary shafts 135 and 135 with the packaging film F shown in FIG. For this purpose, a pair of roll portions 136 and 136 are provided.

  In particular, the pair of rotating shafts 135 and 135 are attached to the rotating shafts 135 and 135 because they are pivotally supported by the support member 133 in a state where they have a predetermined distance from each other and at least one of them is movable in the front-rear direction. The roll parts 136 and 136 can move integrally in the lateral direction, and the pressure between the roll parts 136 and 136 can be individually adjusted.

Also, the other on the outside of the support member 133 in the rotary shaft 135 and 135 were attached to the drive source 137 such as a motor which is fixed to the case as well as engaged with each other gear of the vertical seal rolls 11 of the base end to said substrate 23 one gear machine the pair of roll portion by structure 136, 136 comprising a gear to form a front end of the longitudinal seal 13 to rotate the packaging film F. In this embodiment, the rotary shaft 135, 135 as in the case of longitudinal sheet Lumpur roll 11 of the base end is formed to be hollow. Heater 139, 139 from the proximal end is superior to similarly heat efficiency in the case of the vertical sheet Lumpur roll 11 of the proximal end because it is inserted in the interior. In the drawings, reference numeral 140 denotes a rotary terminal for supplying a predetermined power to the heater 139.

In addition, the said supporting member 133 constituting the vertical sheet Lumpur roll 13 of the tip, the which is connected the distal end of the adjustment screw 141 screwed with the substrate 23 through, by rotating the adjustment screw 141 Further, since the horizontal position of the roll parts 136 and 136 can be adjusted by the support rod 131 , the horizontal movement operation is simple and fine adjustment is easy.

Next, the desired position of the packaging film F shown in FIG. 1 that is disposed between the vertical seal roll 11 at the base end and the vertical heat roll 13 at the front end and is formed into a cylindrical shape by the vertical seal roll 11 at the base end. Next, an intermediate vertical heat roll 12 used for forming a vertical seal and dividing the cylinder in the horizontal direction will be described.

Vertical sheet Lumpur roll 12 intermediate in this embodiment a pair of which toward the wrapping film F side shown in FIG. 1 is projected to and opposed to the front-rear direction to each other in the longitudinal direction end portion of the substrate 23 the support members 121 and 122 made of the substrate, and each holding member 125, 125 of the U-shaped and rotatably supporting the rotary shaft 128, 128 having a roll portion 123 to-edge outer circumference to expose the roll unit 123, 123 the slide grooves with is arranged slidably in the lateral direction, are connected together by assembling bracket 126 the holding member 125 and 125 are disposed in the vertical seal roll 11 side of the base end, the holding member 125 and 125 slide and move in the horizontal direction as one body.

In addition, the one holding member 125 is adjusted device 127 is interposed for movably supporting the holding member 12 5 in the longitudinal direction, thereby enabling adjusting the spacing of the holding member 12 5, 12 5.

Also, together with the rotary shaft 124, 124 are formed to be hollow, projecting through the axial center Oldham coupling 119, 119 of the roll unit 113, 113 constituting the vertical sheet Lumpur roll 11 of the proximal end The drive shafts 128 are inserted into the drive shafts 128, and the drive shafts 128, 128 are formed with grooves 129, 129 that are open at the ends. The grooves 129, 129 are formed on the rotary shafts 124, 124. It fits into an engaging projection (not shown) projecting from the hollow portion. Accordingly, since the roll unit 123, 123 is driven via the drive shaft 128, 128 by the driving force from the roll unit 113, 113 for rotation by a driving source 115 of the vertical sheet Lumpur roll 11 of the base end parts This is advantageous in terms of price increase and maintenance due to the decrease in sales. In addition, since the driving force is transmitted to the roll parts 123 and 123 by the grooves 129 and 129 and the engaging protrusions, the driving force is transmitted even if the roll parts 113 and 113 move in the lateral direction. Since the shafts 128 and 128 are connected to the roll portions 113 and 113 via Oldham couplings 119 and 119, the roll portions 113 and 113 in the base vertical seal roll 11 or the roll portion 123 in the intermediate vertical seal roll 13 Even when the holding member 125 or the holding member 124 is moved in the front-rear direction in order to adjust the pressing force of 123, the driving force from the vertical seal roll 11 at the base end is effectively transmitted to the intermediate vertical seal roll 12. It is done.

Furthermore, heaters 130 , 130 inserted from the base end side of the hollow rotary shafts 112, 112 in the vertical seal roll 11 at the base end are disposed inside the roll portions 123, 123. In addition, it is possible to directly apply an amount of heat necessary for the sealing, and it is possible to reliably perform sealing and to prevent unnecessary heat generation.

Furthermore, the same in the case of the vertical sheet Lumpur roll 13 of the tip even in the middle of the longitudinal sheet Lumpur roll 12, the assembly bracket 126 for connecting the support member 124, 124 is screwed through the substrate 23 The tip of the adjustment screw 142 is connected, and by rotating the adjustment screw 142, the assembly bracket 126 is slid along the support members 121 and 122 to adjust the lateral position of the roll parts 123 and 123. can do.

  In the drawing, reference numeral 14 denotes a heating device for sending heated air before vertical sealing and heating a planned sealing portion before sealing the packaging film to facilitate sealing.

1 is a schematic view of a filling and packaging machine using a vertical sealing device according to an embodiment of the present invention. The top view which shows embodiment of this invention shown in FIG. The front view which shows embodiment of this invention shown in FIG. Sectional drawing which follows the AA line of FIG. The perspective view which shows embodiment of this invention shown in FIG. The partial cross section perspective view of the principal part in embodiment of this invention shown in FIG. The disassembled perspective partial view in the front-end | tip of the vertical seal roll of the base end in embodiment of this invention shown in FIG. Explanatory drawing which shows a prior art example.

DESCRIPTION OF SYMBOLS 1 Vertical sealing apparatus, 2 Filling packaging machine, 11 Vertical sealing roll, 12 Vertical sealing roll, 13 Vertical sealing roll, 23 Substrate, 121,122 support member, 124 Rotating shaft, 125 Holding member, 133 Support member, 119,123, 131 support rod , 136 rotating roll, 139 drive source, 117,139 heater, 141, 142 adjustment screw

Claims (4)

  In the process of continuously taking out the belt-shaped packaging film and transferring it from the upper side to the lower side, a horizontal sealing device for applying a horizontal seal, a vertical seal roll at the base end arranged in the horizontal direction, and an intermediate vertical seal roll And a vertical sealing device of a filling and packaging machine for filling a filling bag into a packaging bag that has a vertical sealing device comprising three vertical sealing rolls at the front end and is sealed in a four-way seal or a lateral direction. The intermediate vertical seal roll and the front vertical seal roll are fixed to a substrate that is suspended from a fixing plate fixed to a part of the case body and arranged in a direction perpendicular to the packaging film. Are slidable along a support rod projecting on the side of the wrapping film from the substrate fixing the vertical seal roll at the base end with their axes shifted from each other. It is supported by a material and can be moved in the lateral direction for each of the vertical seal rolls, and the tip is connected to the intermediate vertical seal roll and the support member of the vertical seal roll at the tip to penetrate the substrate. By rotating at least one of the pair of adjustment screws screwed in, the intermediate vertical seal roll and the front vertical seal roll individually move laterally to the substrate holding the base vertical seal roll, respectively. A vertical sealing device for a filling and packaging machine, wherein the vertical sealing device is arranged in a possible manner.   Individual heaters are arranged on the rotary shafts of the vertical seal roll of the base end, the vertical seal roll of the middle, and the vertical seal roll of the tip, and the temperature can be adjusted for each vertical seal roll. The vertical sealing apparatus of the filling and packaging machine according to claim 1.   The filling according to claim 1 or 2, wherein pressure adjustment between the respective roll portions facing each other is possible for each vertical seal roll of the base end vertical seal roll, the intermediate vertical seal roll, and the front end vertical seal roll. Vertical sealing device for packaging machines.   In the intermediate vertical seal roll, each rotary shaft is connected to the rotary shaft of the base vertical seal roll via a universal joint so as to be slidable in the axial direction. The vertical sealing device for a filling and packaging machine according to claim 1, 2 or 3, wherein the vertical sealing roll can be driven using a drive source provided in the vertical sealing roll at the proximal end in a state in which the movement and pressurization adjustment are possible.

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