WO2023149362A1 - 帯状プラスチックフィルムの搬送方法、帯状プラスチックフィルムの搬送ガイドおよび製袋装置 - Google Patents
帯状プラスチックフィルムの搬送方法、帯状プラスチックフィルムの搬送ガイドおよび製袋装置 Download PDFInfo
- Publication number
- WO2023149362A1 WO2023149362A1 PCT/JP2023/002560 JP2023002560W WO2023149362A1 WO 2023149362 A1 WO2023149362 A1 WO 2023149362A1 JP 2023002560 W JP2023002560 W JP 2023002560W WO 2023149362 A1 WO2023149362 A1 WO 2023149362A1
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- WO
- WIPO (PCT)
- Prior art keywords
- plastic film
- belt
- shaped plastic
- roll
- guide
- Prior art date
Links
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- 229920006255 plastic film Polymers 0.000 title claims abstract description 240
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 description 44
- 238000010586 diagram Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
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- 230000002093 peripheral effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011345 viscous material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000002651 laminated plastic film Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/10—Feeding or positioning webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/26—Folding sheets, blanks or webs
- B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/14—Feeding webs from rolls by grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/16—Feeding webs from rolls by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/18—Registering sheets, blanks, or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
- B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
- B65B9/08—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
- B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/035—Controlling transverse register of web by guide bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
- B31B2155/001—Flexible containers made from webs by folding webs longitudinally
Definitions
- the present invention is installed on the upstream side of heat sealing means in a bag-making apparatus for manufacturing a packaging bag, for example, a vertical or horizontal filling and packaging machine, a vertical or horizontal bag-making machine, etc., and continuously from a raw film or the like.
- a belt-shaped plastic film conveying method suitable for folding back a belt-shaped plastic film conveyed by a belt in the width direction while appropriately changing the conveying route, a belt-shaped plastic film conveying guide (bag making guide), and a manufacturing method equipped with the conveying guide Regarding the bag device.
- contents such as liquids, viscous substances, powders and granular substances such as food and drink, seasoning liquids, pharmaceuticals, chemicals, etc. are automatically filled and packaged while forming a belt-shaped plastic film into a bag.
- a filling and packaging machine capable of continuously manufacturing a plurality of packaging bags is known (for example, Patent Literature 1).
- a belt-shaped plastic film is led out from a film raw roll formed by winding the plastic film into a roll through a film guiding mechanism to a conveying guide, which is a film folding mechanism. Fold the plastic film in two along the longitudinal direction. Then, the plastic film is fed out while sandwiching the overlapping edges of the plastic film by a vertical sealing mechanism (vertical sealing roll pair), and is heat-sealed to vertically seal the plastic film into a cylindrical shape. Subsequently, the cylindrical plastic film is laterally heat-sealed by a lateral sealing mechanism (horizontal sealing roll pair) to laterally seal to form a laterally sealed portion that will be the bottom of the packaging bag, and a bottomed cylindrical shape is formed. A liquid or viscous material to be packaged is filled into the plastic film formed by the filling nozzle, and the opening side of the packaging bag is laterally sealed by the horizontal sealing mechanism to form a continuous packaging bag. is configured to
- the position of the original film is adjusted as appropriate so that the center of the belt-shaped plastic film in the width direction immediately after unwinding from the original roll coincides with the machine center related to the filling and packaging machine, and during trial operation.
- the position of the transport guide is adjusted according to the center position in the width direction of the belt-shaped plastic film used by the worker.
- these methods are very time-consuming, and there is a certain distance from the unwinding point of the belt-shaped plastic film to the folding point, and the setting error of the conveying rolls and guides installed in the meantime can interfere with the conveying process.
- a strip of plastic film may meander.
- the center position of the belt-shaped plastic film in the width direction was calculated from the width of the core tube of the original film, but there was an error between the width of the core tube and the belt-shaped plastic film. and could not pinpoint its exact location. Therefore, even if the position of the original film and the position of the transport guide are adjusted, the center position of the belt-shaped plastic film in the width direction will not reach the pair of vertical seal rolls until the rewound belt-shaped plastic film reaches the pair of vertical seal rolls. Sometimes, it deviates from the center of the machine, resulting in misalignment of the ears.
- the conveying path of the belt-shaped plastic film that is continuously transferred from the upstream side to the downstream side of the raw film or the like is appropriately changed, and the belt-shaped plastic film is accurately positioned at the desired position in the width direction. It is an object of the present invention to provide a belt-like plastic film conveying method, a conveying guide for the belt-like plastic film, and a bag making apparatus equipped with the conveying guide.
- the present invention involves wrapping a belt-shaped plastic film transported from an upstream side around the outer surface of a dielectric at least in the central region in its width direction, and maintaining the wound state toward the downstream side.
- the derivative around which the belt-shaped plastic film is wound is moved, rotated, or tilted via a base connected to the conductor, so that the belt-shaped plastic film is provided with frictional resistance against the conductor.
- a method for transporting a belt-shaped plastic film is proposed, characterized in that the transport path of the belt-shaped plastic film is changed by varying the tension of the belt-shaped plastic film and sliding the belt-shaped plastic film along the outer surface of the dielectric. .
- the movement of the derivative is movement in a direction along the axis of the derivative within a horizontal plane including the axis of the derivative
- the rotation of the derivative is: It is preferable that the rotation is about a fulcrum set in advance in a horizontal plane including the axial center of the inductor, and that the tilting of the inductor is tilting in a direction orthogonal to the width direction of the belt-shaped plastic film.
- the present invention provides a conveying guide that winds a belt-shaped plastic film transported from an upstream side on an outer surface thereof and guides the belt-shaped plastic film toward a downstream side, wherein at least a central region in the width direction of the belt-shaped plastic film is wound. and a base connected to the dielectric, and the dielectric strip is moved, rotated or tilted through the base while the strip plastic film is wound thereon, and the strip plastic film is slid along the outer surface of the dielectric. and moving means for changing the conveying path of the belt-shaped plastic film.
- the movement of the derivative is movement in a direction along the axis of the derivative within a horizontal plane containing the axis of the derivative, and the rotation of the derivative is within the horizontal plane containing the axis of the derivative. and the tilting of the inductor is tilting in a direction perpendicular to the width direction of the belt-shaped plastic film,
- the moving means includes a drive source that moves or rotates the inductor via the base, and a center position and/or both edge positions of the belt-like plastic film in the width direction to the upstream side and/or the edge position of the inductor.
- the moving means includes a drive source for tilting the inductor via the base, and a center position and/or both edge positions of the belt-shaped plastic film in the width direction to the upstream side and/or the downstream side of the inductor.
- the base has a shaft that is connected to the rear end of the base and tilts the inductor through the base by being rotated by the drive source;
- the derivative is arranged at least one location on the upstream side, the downstream side, and the immediate vicinity of the side portion thereof, and the region excluding the winding region of the belt-shaped plastic film wound around the derivative is brought into sliding contact with it.
- the derivative is a guide roll that is rotatably held via a bearing and has a rotation axis along the width direction of the plastic film, (7)
- the guide roll has a roll cylinder whose roll diameter is kept constant in its width direction, (8)
- the guide roll has a maximum diameter expansion portion in which the roll diameter is the widest at the center in the width direction, and is connected to both sides of the maximum diameter expansion portion, and the width of the guide roll from the maximum diameter expansion portion and a reduced diameter portion in which the roll diameter is gradually reduced toward the end in the direction;
- the maximum-diameter portion includes boundary corner portions forming boundaries with the diameter-reduced portion, and a belt-shaped body that forms a winding surface parallel to the axis of the guide roll between the boundary corner portions.
- the diameter-reduced portion has an edge corner portion that forms a winding end of the strip-shaped plastic film at the smallest diameter-reduced portion where the roll diameter is the most reduced; (10) the diameter-reduced portion has a concave portion that forms a non-contact area with the strip-shaped plastic film between the boundary corner portion and the edge corner portion; (11)
- the guide roll is provided at the end of the roll cylinder in the width direction to slide the belt-shaped plastic film in contact with the belt-shaped plastic film, or to contact the belt-shaped plastic film and roll. having a guide,
- the sub-guide has a moving means capable of moving in a direction of pressing the belt-shaped plastic film or in a direction away from the belt-shaped plastic film. is preferred.
- the present invention includes a rewind roll for sequentially rewinding a belt-shaped plastic film from a roll-shaped original film, and the belt-shaped plastic film rewound by the rewind roll is wound on the outer surface.
- the conveying guide guides from the upstream side to the downstream side by using the conveying guide, and the belt-shaped plastic film folded in at least two is sandwiched at the exit side of the conveying guide, and the belt-shaped plastic film is compressed and heated.
- a bag-making apparatus comprising heat-sealing means for forming one or more seals in the longitudinal direction and/or the width direction to form a belt-like plastic film into a bag-like shape.
- the rewind roll holds the original film and is connected to a roll body rotatably supported via a bearing, and the shaft end of the roll body, and the roll body is connected to the original film.
- moving means for moving along the axis of the roll main body; detecting means for detecting the center position in the width direction of the belt-shaped plastic film immediately after rewinding; and the moving means according to the information detected by the detecting means.
- a control unit that moves the roll body together with the original film along the axis of the roll body to change the center position in the width direction of the strip-shaped plastic film involved in rewinding; (2) the roll body has braking means or driving means for adjusting the rotational speed of the roll body; (3) On the outer surface of the raw film, the belt-shaped plastic film is wound into a roll, and the through-hole formed inside the roll is adapted to the body portion of the roll body, and the roll is Having an annular body rotatable in synchronization with rotation of the main body; is preferred.
- the conductor is moved, rotated, or tilted while the belt-shaped plastic film is wound around the derivative, and the belt-shaped plastic film is slid along the outer surface of the derivative, thereby continuously transporting the film. It is possible to appropriately change (adjust) the conveying route of the belt-shaped plastic film. Therefore, the center position in the width direction or the positions of both edges of the strip of plastic film can be precisely aligned with the desired positions, and the center position in the width direction of the strip of plastic film can be adjusted to the above-mentioned position during transportation in the conventional manner. It is possible to always accurately fold the belt-shaped plastic film without deviating from the machine center associated with the filling and packaging machine, thereby effectively suppressing the occurrence of misalignment of edges and the like.
- the center position and/or both edge positions of the belt-shaped plastic film in the width direction are detected by detection means such as a CCD camera or sensor, and the conveying guide is moved according to the information obtained by the detection means.
- detection means such as a CCD camera or sensor
- the conveying guide is moved according to the information obtained by the detection means.
- the center position in the width direction of the belt-shaped plastic film immediately after being rewound from the original film is detected by a detection means such as a CCD camera or a sensor, and according to the information obtained by the detection means,
- a detection means such as a CCD camera or a sensor
- the positional deviation (meandering) of the plastic film drawn out from the original film is corrected. can be adjusted automatically.
- the position of the plastic film fed out from the original film can be aligned without stopping the filling and packaging machine at the time of exchanging the original film, etc., and productivity can be improved.
- manufacturing costs can be reduced by saving manpower.
- FIG. 1 is a perspective view showing an embodiment of a conveying guide of the present invention
- FIG. 2 is a diagram showing a state in which a belt-shaped plastic film is wound around the conveying guide of (a). It is (a) a top view of the conveyance guide of FIG. 1, (b) Front view, (c) Left side view (a rod is not illustrated). 1. It is a figure which shows the state which moved the conveyance guide of FIG. 1 in the horizontal plane containing this axial center in the direction along the axial center of a guide roll. It is a figure which shows the state which rotated the conveyance guide of FIG. 1 within the horizontal plane containing the axial center of a guide roll. FIG.
- FIG. 5 is a plan view showing another embodiment of the transport guide of the present invention
- 6 is a diagram showing a state in which the conveying guide of FIG. 5 is tilted clockwise with respect to a direction perpendicular to the width direction of the belt-shaped plastic film F.
- FIG. 6 is a diagram showing a state in which the conveying guide of FIG. 5 is tilted counterclockwise with respect to a direction perpendicular to the width direction of the belt-shaped plastic film F.
- FIG. It is a figure which shows other embodiment of the conveyance guide of this invention, (a) is a front view, (b) is a side view. (a) is a diagram showing a state in which the transport guide in FIG.
- Fig. 8 is tilted counterclockwise with respect to a direction perpendicular to the width direction of the belt-shaped plastic film F, and (b) is a diagram showing a state in which it is tilted clockwise. It is a figure which shows a state.
- Fig. 10 is a view showing another embodiment of the conveying guide of the present invention, (a) is a plan view, (b) is a front view, (c) is a left side view (rod is not shown), (d) is ( b) is a cross-sectional view at the AA position.
- Fig. 10 is a view showing another embodiment of the conveying guide of the present invention, (a) is a plan view, (b) is a front view, (c) is a left side view (rod is not shown), (d) is ( b) is a cross-sectional view at the AA position.
- FIG. 10 is a view showing still another embodiment of the conveying guide of the present invention, (a) is a plan view, (b) is a front view, (c) is a left side view (rod is not shown), (d) is It is a cross-sectional view at the BB position of (b).
- FIG. 11 is a perspective view showing still another embodiment of the transport guide of the present invention; 12. (a) of the transport guide in FIG. 12 is a plan view, (b) is a cross-sectional view of the inductor, (c) is a left side view (rod not shown), and (d) is a front view (rod is shown). not shown).
- FIG. 10A is a perspective view and FIG.
- FIG. 17 is a right side view of the vertical filling and packaging machine of FIG. 16;
- FIG. 4 is a cross-sectional view showing the structure of a rewind roll;
- (a) is a diagram showing the configuration of a rewind roll, and
- (b) is a view taken along line DD of FIG. 19(a).
- FIG. 17 is a left side view of the vertical filling and packaging machine of FIG. 16, and is a diagram for explaining the center of the machine in the vertical filling and packaging machine.
- FIG. 17 is a view for explaining the biting center (machine center) of the pair of vertical seal rolls provided in the vertical filling and packaging machine of FIG. 16;
- FIG. 1(a) is a perspective view showing an embodiment of a transport guide 1 of the present invention
- FIG. 1(b) shows a state in which a belt-shaped plastic film F is wrapped around the transport guide 1 of FIG. 1(a).
- It is a diagram. 2 is (a) a plan view, (b) a front view, and (c) a left side view (a rod is not shown) of the transport guide 1 of FIG.
- FIG. 3 is a diagram showing a state in which the transport guide 1 of FIG. 2 is moved in a horizontal plane including the axis L1 of the guide rolls 20 forming the derivative 2 in a direction along the axis L1.
- FIG. 4 is a diagram showing a state in which the transport guide 1 of FIG.
- FIG. 5 is a plan view showing another embodiment of the conveying guide of the present invention
- FIG. 6 shows the conveying guide of FIG. 7 is a diagram showing a state in which the conveying guide in FIG. 5 is tilted counterclockwise with respect to a direction orthogonal to the width direction of the band-shaped plastic film F.
- the belt-shaped plastic film F is wound around the transport guide 1, and by the rolling of the guide rolls 20 constituting the inductor 2, the belt-shaped plastic film F is folded in two in the width direction just below the guide rolls 20 while transporting the belt-shaped plastic film F downstream. It is.
- the transport guide 1 includes a guide roll 20 as a derivative 2, a base 30 connected to the guide roll 20, and a belt-shaped plastic film F wound around the guide roll 20.
- the guide roll 20 is moved to the installation position. and a moving means 3 for adjusting the
- the derivative 2 is composed of a rollable guide roll 20
- the derivative 2 is not limited to a rollable roll. It is also possible to use a member that slides or slides while contacting the side surface.
- a pair of rods 4a and 4b are provided for guiding the folding of the belt-shaped plastic film F by holding the slidable contact areas facing each other while bringing them into slidable contact.
- 1 to 6 show the case where the pair of rods 4a and 4b are provided at the upstream position of the transport guide 1, the pair of rods 4a and 4b are provided at both sides of the transport guide 1 in the width direction. , or may be provided downstream of the conveying guide 1 .
- the moving means 3 includes a driving source 31 consisting of an actuator such as a hydraulic cylinder or a pneumatic cylinder for moving, rotating or tilting the guide roll 20 via a base 30 connected to the guide roll 20, Detecting means (not shown) for detecting the center position and both edge positions on the upstream side and/or downstream side of the guide roll 20, and the driving source 31 is operated according to the detection result detected by the detecting means, A control unit 32 that moves, rotates, or tilts the guide roll 20 via the base 30 and adjusts the installation position of the guide roll 20 to change the conveying path of the strip-shaped plastic film F.
- a driving source 31 consisting of an actuator such as a hydraulic cylinder or a pneumatic cylinder for moving, rotating or tilting the guide roll 20 via a base 30 connected to the guide roll 20, Detecting means (not shown) for detecting the center position and both edge positions on the upstream side and/or downstream side of the guide roll 20, and the driving source 31 is operated according to the detection result detected by the detecting means,
- the moving means 3 is connected not only to a base 30 (guide roll 20) but also to a pair of rods 4a and 4b, and the pair of rods 4a and 4b are integrally moved, rotated or rotated together with the base 30 (guide roll 20). You can tilt it.
- the detection means may be any means that can detect the width direction center position and/or side edge position of the belt-shaped plastic film F at the upstream and/or downstream position of the guide roll 20.
- Cameras and various edge sensors for example, those that detect the width of the belt-shaped plastic film F with an image sensor, or those that irradiate the belt-shaped plastic film F with an ultrasonic laser or the like, and those that are transmitted or reflected by the detector ) can be used.
- the information detected by the detection means (the center position in the width direction and/or the positions of both edges of the belt-shaped plastic film F) is transmitted to the control unit 32, and the deviation from the set value input in advance to the control unit 32 is calculated. .
- the control unit 32 determines that the deviation from the set value is greater than or equal to the specified range, the control unit 32 determines the installation position of the guide roll 20 from the deviation. 30 is moved, rotated, or tilted to a predetermined position by a driving source 31 to move the guide roll 20 to a desired position.
- the guide roll 20 can be moved within a horizontal plane containing the axis L1 of the guide roll 20, and as shown in FIG.
- the installation position can be adjusted by rotating the center of the rear end in the width direction.
- the guide roll 20 may be moved or rotated in a region other than the horizontal plane including the axis L1.
- the installation position of the guide roll 20 is adjusted by tilting the guide roll 20 in a direction orthogonal to the width direction of the belt-shaped plastic film F.
- the direction orthogonal to the width direction of the belt-shaped plastic film F means that when the shaft 33 is arranged horizontally and the axis of the shaft 33 is orthogonal to the plane of the paper, although the direction along the periphery is used, the arrangement form of the shaft 33 with respect to the base 30 can adopt a form other than the horizontal arrangement, and is not limited to the illustrated one.
- the edge of the belt-shaped plastic film F shifts as shown in the lower plane of FIG.
- the edges of the film F are shifted as shown in plan in the lower portion of FIG.
- the tilt angle can be adjusted within a range of about ⁇ 10° with respect to the horizontal plane.
- a case where the guide roll 20 that can roll as the derivative 2 is used is shown as an example. It can also be used as a member.
- the frictional resistance between the guide roll 20 and the belt-shaped plastic film F fluctuates, and the tension of the belt-shaped plastic film F fluctuates.
- the belt-shaped plastic film F wound around the guide roll 20 slides along the roll cylinder of the guide roll 20 to change the conveying path, and the width direction center position or both edge positions of the belt-shaped plastic film F are changed. , can be precisely matched to a predetermined position. Therefore, for example, when the belt-like plastic film F is folded back in two at the center position in the width direction, the side edges can be accurately overlapped, and the occurrence of edge misalignment can be effectively suppressed.
- FIGS. 8A is a front view of the transport guide 1
- FIG. 8B is a side view of the transport guide 1 (only the support wall 6 is shown in cross section).
- FIG. 9(a) is a diagram showing a state in which the guide roll 20 as the guide 2 is tilted counterclockwise with the protruding tip T of the guide roll 20 as a fulcrum
- FIG. It is a figure which shows the state which made the paper surface clockwise tilt the roll 20.
- FIG. 9(a) is a diagram showing a state in which the guide roll 20 as the guide 2 is tilted counterclockwise with the protruding tip T of the guide roll 20 as a fulcrum
- FIG. It is a figure which shows the state which made the paper surface clockwise tilt the roll 20.
- the transport guide 1 of this embodiment has a guide roll 20 and a base 30 connected to the guide roll 20 .
- the base 30 includes a horizontal portion 30a, an inclined portion 30b extending obliquely downward from one end of the horizontal portion 30a, and a roll shaft 21 of the guide roll 20 connected to the inclined portion 30b. and a support portion 30c that rotatably holds the .
- a case where the guide roll 20 that can roll as the derivative 2 is used is shown as an example. It can also be used as a member.
- a guide 34 passing through an upward convex slit 5 provided in the support wall 6 is provided.
- the transport guide 1 guide roll 20
- the transport guide 1 can be tilted, thereby adjusting the conveying path of the strip-shaped plastic film F.
- FIG. 10(a) is a plan view of the transport guide 1
- FIG. 10(b) is a front view
- FIG. 10(c) is a left side view
- FIG. It is the figure which showed the cross section.
- the conveying guide 1 includes a non-driven guide roll 20 that abuts against the inner surface of the belt-shaped plastic film F and rolls on bearings 21a, and both ends of the roll shaft 21 of the guide roll 20 are supported by bearings 22a and 23a, respectively.
- the sub-guides are composed of the sub-guide rolls 24 and 25 that roll in contact with the belt-shaped plastic film F.
- the sub-guides contact and slide on the inner surface of the belt-shaped plastic film F.
- it can be a member that makes sliding contact.
- the guide roll 20 and the sub-guide rolls 24 and 25 are configured to rotate separately.
- the guide rolls 24 and 25 may be configured to rotate integrally with the roll shaft 21 .
- the moving means 3 includes detecting means (not shown) for detecting the conveying path of the belt-shaped plastic film F on the entrance side and/or the exit side of the conveying guide 1, and moving the base 30 according to the information detected by the detecting means.
- detecting means for detecting the conveying path of the belt-shaped plastic film F on the entrance side and/or the exit side of the conveying guide 1, and moving the base 30 according to the information detected by the detecting means.
- a drive source such as a hydraulic cylinder or pneumatic cylinder
- the roll shaft 21 is moved, rotated or tilted together with the base 30 as shown in FIGS.
- a control unit (not shown) that changes the conveying path of the strip-shaped plastic film F by adjusting the installation position of the roll shaft 21 is applied.
- the guide roll 20 can be moved together with the bearing 21a of the roll shaft 21 by connecting the support portions 22 and 23 that house and hold the bearing 21a of the roll shaft 21 to the base 30 of the moving means 3.
- the transport guide 1 configured in this way moves in the direction of the axis L1 of the guide roll 20 in the horizontal plane including the axis L1
- the installation position can be adjusted by rotating the guide roll 20 in a horizontal plane including the axis L1 or by tilting the guide roll 20 in a direction perpendicular to the width direction of the belt-shaped plastic film F.
- the roll cylinder has a barrel shape with a large diameter and has a central portion that protrudes (protruding tip T) from the tips of the support portions 22 and 23 .
- the roll cylinder surface of the guide roll 20 is shown in FIG. It is configured in an arc or taper in the range of 1 to 70°, preferably 20 to 60°.
- the guide roll 20 having the roll cylinder having the protruding tip T is used in this way, at the position of the protruding tip T (maximum diameter enlarged portion 20a) where the roll diameter is the maximum, the tension, frictional force, and peripheral speed with respect to the belt-shaped plastic film F are reduced. is maximum, and the tension, frictional force, and peripheral speed with respect to the belt-shaped plastic film are minimized at both end positions (smallest diameter portion) where the roll diameter is the minimum. Therefore, according to the guide roll 20 shown in FIG. 10, the frictional resistance with the band-shaped plastic film F increases at the central portion (protruding tip T) of the roll cylinder.
- the center position of the belt-shaped plastic film F in the width direction moves toward the projecting tip T (easily slides). Therefore, for example, when the belt-shaped plastic film F is folded in two at the center position in the width direction immediately below the transport guide 1, the center position in the width direction and the machine center C (see FIG. 17) described later are aligned. They can be aligned with high accuracy, and both edges in the width direction of the belt-shaped plastic film F can be accurately overlapped.
- Fig. 11 shows still another embodiment of the transport guide 1.
- 11(a) is a plan view
- (b) is a front view
- (c) is a left side view (a rod is not shown)
- (d) is a cross-sectional view taken along line BB in (b).
- the conveying guide 1 of this embodiment is different from the conveying guide 1 of the embodiment shown in FIG. 10 in that the sub-guide rolls 24 as sub-guides are movable along the axes of the rods 4a and 4b (indicated by arrows in the figure). It is configured. In this embodiment, only the sub-guide roll 24 is movable, but both the sub-guide rolls 24 and 25 may be movable.
- the sub-guide roll 24 is provided at the end of the roll shaft 26 different from the roll shaft 21 of the guide roll 20 and the sub-guide roll 25, and is rotatable integrally with the roll shaft 26 by the bearing 26a. Further, the sub-guide roll 24 is configured such that the roll shaft 26 and the bearing 26a can be moved along the axes of the rods 4a and 4b by a slider 35 that holds the roll shaft 26 and the bearing 26a. Further, the sub-guide roll 24 detects the conveying path of the belt-shaped plastic film F on the entrance side and/or the exit side of the conveying guide 1 by detecting means, and moves the slider 35 according to the information detected by the detecting means. It is operated by a drive source (not shown) such as a hydraulic cylinder or pneumatic cylinder.
- the sub-guide roll 24 is moved together with the roll shaft 26 and the bearings 26a in the direction of pressing the belt-shaped plastic film F or in the direction away from the belt-shaped plastic film F. It is possible to change the transport path of the strip-shaped plastic film F by changing the tension and frictional resistance to the .
- FIG. 12A and 12B are perspective views showing another embodiment of the transport guide 1.
- FIG. 13A is a plan view of the transport guide 1 of FIG. It is the figure which showed one part in the cross section, (c) is a left side view, (d) is a front view.
- the conveying guide 1 of this embodiment abuts on the inner surface of the band-shaped plastic film F, and the non-driven guide roll 20 and both ends of the roll shaft 21 of the guide roll 20 are rotatably supported by bearings 22a and 23a, respectively. It has support portions 22 and 23 for supporting, a base 30 connected to the support portions 22 and 23, and a moving means (not shown) for moving the roll shaft 21 and adjusting the installation position of the guide roll 20.
- the guide roll 20 of the present embodiment includes a maximum enlarged diameter portion 20a having the largest roll diameter at the center in the width direction, and the maximum enlarged diameter portion 20a sandwiched between both sides, and gradually rolls toward the ends in the width direction.
- a band-shaped plastic film F is wound around a roll cylinder having a diameter-reduced portion 20b having a reduced diameter.
- the maximum diameter enlarged portion 20a (protruding tip T) of the guide roll 20 protrudes more than the tips of the support portions 22 and 23, and the strip-shaped plastic film F is the maximum of the guide roll 20.
- the belt-shaped plastic film F at the maximum diameter enlarged portion 20 is stretched as described above. Since the tension and the frictional resistance are increased, the belt-shaped plastic film F that has been wrapped around becomes easy to slide along the surface of the roll cylinder toward the maximum enlarged diameter portion 20a (protruding tip T). Therefore, by moving, rotating, or tilting the guide roll 20 via the base 30, the center position in the width direction or the positions of both edges in the width direction of the belt-shaped plastic film F can be quickly and accurately matched to desired positions.
- the center position in the width direction and the machine center C can be matched with high accuracy, and both edges in the width direction of the strip-shaped plastic film F can be accurately overlapped with each other.
- the maximum enlarged diameter portion 20a (protruding tip T) has a convex shape with an R formed at the tip as shown in FIGS.
- FIG. 14 when the maximum diameter portion 20a is made of a belt-shaped body 20a1, when the guide roll 20 is moved, rotated, or tilted through the base 30 as described above, the belt-shaped plastic wrapped around the belt-shaped plastic is displaced. The film F becomes easier to slide toward the belt-like body 20a1, which is the maximum diameter enlarged portion 20a.
- the belt-shaped plastic film F has boundary corners 20c1 and 20c2 that form boundaries between the maximum diameter enlarged portion 20a and the diameter reduced portion 20b, respectively, and edge corners of the diameter reduced portion 20b where the roll diameter is the most reduced. Strong contact is made at four points with the portions 20d1 and 20d2. Therefore, in the control for changing the conveying path of the belt-shaped plastic film F, highly responsive control can be performed, and the center position in the width direction or the positions of both edges in the width direction of the belt-shaped plastic film F can be quickly moved to desired positions. , can be matched with good accuracy.
- the width D of the strip 20a1 in the direction of the roll shaft 21 is preferably about 0.2 mm to 5.0 mm, especially about 0.5 mm.
- the angle ⁇ 1 between the straight line parallel to the axis L1 of the guide roll 20 shown in FIG. In order to facilitate sliding toward the widest diameter portion 20a (protruding tip T) of the band-shaped plastic film F, it should be configured in an arc or taper within the range of 1 to 70°, preferably 20 to 60°. is preferred.
- the guide roll 20 shown in FIG. 14 can also be set to the same angle.
- the guide roll 20 is provided between the boundary corner portion 20c1 and the edge corner portion 20d1 and between the boundary corner portion 20c2 and the edge corner portion 20d2 of the reduced diameter portion 20b.
- a recess 20e can also be provided to form a non-contact area where the plastic film F does not contact.
- FIG. 16 is a diagram showing a vertical filling and packaging machine as an embodiment of a bag-making apparatus equipped with the conveying guide 1 configured as described above.
- the bag-making apparatus of the present invention is not limited to a vertical filling and packaging machine, but may be a horizontal filling and packaging machine, a vertical or horizontal bag-making machine, or the like.
- a conveying guide for folding back, and heat sealing means for forming a vertical seal portion and/or a horizontal seal portion in the longitudinal direction and/or the width direction of the folded belt-shaped plastic film F to form a bag, and a plurality of packages.
- Reference numeral 100 in FIG. 16 denotes a raw film formed by winding a belt-shaped plastic film F into a roll.
- 103 and 104 are guide rolls for changing the advancing direction of the rewound belt-shaped plastic film F; Posture) is a heaven roll that changes direction.
- the rewind roll 102 has means for suppressing meandering of the strip-shaped plastic film F rewound from the original film 100, as will be described later.
- the film configuration of the strip-shaped plastic film F is not particularly limited as long as it has at least a base layer and a sealant layer. and a sealant layer made of unstretched polyethylene layer, polypropylene layer or the like.
- a laminated plastic film obtained by laminating aluminum foil, aluminum alloy foil, vapor-deposited aluminum layer and/or paper can also be preferably used.
- Reference numeral 107 in FIG. 16 is placed directly below the conveying guide 1, and holds the edge of the superimposed portion of the belt-like plastic film F folded in two, and pressurizes and heats to form the vertically sealed portion S.
- a continuously formed vertical seal roll pair 108 is provided immediately below the vertical seal roll pair 107, and sandwiches the belt-shaped plastic film F having the vertical seal portion S formed thereon, pressurizes and heats the belt-shaped plastic film.
- a pair of horizontal sealing rolls forming a horizontal sealing portion S1 in the width direction of F, and 109 are provided between a pair of vertical sealing rolls 107 and a top roll 105, and are separated by the horizontal sealing portion S1 and the vertical sealing portion S.
- a filling nozzle 110 for filling the inner space of the band-shaped plastic film F with the material to be packaged M is provided downstream of the horizontal sealing roll pair 108, and a cooling roll pair 111 for cooling the horizontal sealing portion S1 is provided. , is provided downstream of the cooling roll pair 110, and cuts a plurality of packaging bags in which the bags are mutually linked at the W lateral sealing portion S1 to separate the packaging bags W into individual bags.
- the conveying guide 1 can be provided at a position 50 to 500 mm, preferably 100 to 300 mm upstream from the vertical sealing roll pair 107, but the conveying guide 1 is located downstream of the installation position of the filling nozzle 109. may be placed in
- the vertical seal roll pair 107 is composed of one drive motor and gear mechanism (not shown) that rotates them in opposite directions at a constant speed, and bearings that support both ends of one of the vertical seal rolls.
- a pair of air cylinders, for example, are provided to press the block against the bearing blocks bearingly supporting the other longitudinal seal roll.
- the case of manufacturing a three-side seal type packaging bag W is shown, but when manufacturing a four-side seal type packaging bag, the belt-shaped plastic film F is folded back on the vertical seal roll pair 7.
- a seal bar for position sealing is further provided, and the pair of vertical seal rolls 7 forms a vertical seal portion S on each of the overlapped side end portions and folded portion of the band-shaped plastic film F. As shown in FIG.
- the pair of horizontal seal rolls 108 includes one horizontal seal portion S1 that cooperates with the vertical seal portion S to form an inner space, and another one that seals the inner space after the inner space is filled with the item to be packaged M. It has two functions of alternately forming two horizontal seal portions S1.
- heat sealing means a case where a seal roll pair (vertical seal roll pair 107 and horizontal seal roll pair 108) is provided is shown, but the heat seal means is at least Any device may be used as long as it can seal the belt-shaped plastic film F folded in two in the longitudinal direction and/or the width direction, and a pair of sealing plates or the like may be used.
- Reference numeral 36 denotes detection means provided directly above the conveying guide 1 .
- the detection means 36 may be of any type as long as it can detect the center position in the width direction or the edge position in the width direction of the belt-shaped plastic film F.
- One that detects the width of the plastic film F, one that irradiates the band-shaped plastic film F with ultrasonic waves or lasers, and one that detects the edge by judging what is transmitted or reflected by the detector) can be used.
- the detection means 36 may be provided between the conveying guide 1 and the pair of vertical sealing rolls 107 .
- the information detected by the detection means 36 (the center position in the width direction or the edge position in the width direction of the belt-shaped plastic film F) is transmitted to the control unit 32, and the deviation from the preset value input in advance is calculated.
- the control unit 32 determines that the deviation from the set value is greater than or equal to the specified range, the guide roll 20 is moved to a predetermined position by the drive source 31 via the base 30 according to a command from the control unit 32. Rotating or tilting causes the belt-shaped plastic film F wound around the guide roll 20 to slide along the roll cylinder of the guide roll 20, thereby changing the conveying path of the belt-shaped plastic film F. It will be.
- the conveying path of the belt-shaped plastic film F is the path until the belt-shaped plastic film F rewound on the rewind roll 102 reaches the pair of vertical seal rolls 107. It means to shift the belt-shaped plastic fill F in the process in the width direction.
- the conveying guide 1 adjusts and controls the installation position of the guide roll 20 around which the inner surface of the belt-shaped plastic film F is wound, and by changing the conveying route of the belt-shaped plastic film F, the width of the belt-shaped plastic film F is changed. It is possible to match the directional center position with a machine center C related to a vertical filling and packaging machine, which will be described later. Therefore, the belt-shaped plastic film F can be folded in two at the center position in the width direction by the transport guide 1 so that the edges can be accurately overlapped. It is possible to avoid ear deviation that was inevitable to occur.
- the top roll 105 is arranged at a position about 1000 mm higher than the vertical seal roll pair 107, and the top roll 105 and the vertical seal roll 105 It was necessary to adjust the distortion by applying tension to the running belt-shaped plastic film F between the seal roll pair 107, but according to the vertical filling and packaging machine of this embodiment, the meandering of the belt-shaped plastic film F ( Since the transport path) can be adjusted by the transport guide 1, the arrangement position of the top roll 105 can be lowered (approximately -500 mm), and the vertical filling and packaging machine can be made compact.
- FIG. 17 is a right side view of the vertical filling and packaging machine of FIG. 16
- FIG. 18 is a sectional view showing the structure of the rewind roll 102
- FIG. 19(a) shows the structure of the rewind roll 102
- FIG. 19(b) is a DD arrow view of FIG. 19(a)
- FIG. 20 is a left side view of the vertical filling and packaging machine of FIG.
- FIG. 21 is a diagram for explaining the biting center of the pair of vertical seal rolls 107 in FIG.
- the unwinding roll 102 mainly includes a roll body 120 on which the original film 100 is mounted, moving means 121 connected to the axial end of the roll body 120, and the original film 100. It consists of a detecting means 122 for detecting the center position in the width direction of the band-shaped plastic film F immediately after, and a control section 123 for receiving information from the detecting means 122 and driving the moving means 121 .
- the original film 100 has a paper tube 101 made of an annular body at the center in the radial direction. is attached to the roll body 120 of the unwind roll 102 .
- the annular body formed by winding the strip-shaped plastic film F may be made of not only the paper (paper tube 101) of the present embodiment, but also various materials such as plastic and metal.
- the original film 100 is fixed to the roll body 120 of the rewind roll 102 by fitting annular stoppers 124 to both ends of the paper tube 101, and is configured to rotate integrally with the roll body 120.
- the method of fixing the original film 100 to the roll body 120 is not particularly limited.
- the roll 100 can be fixed to or released from the roll body 120 via the paper tube 101, or fixed mechanically (mechanical chuck) without using an air shaft.
- Both ends of the roll body 120 are rotatably supported by bearings 126 with respect to the rotation support portions 125, and one shaft end is connected to a moving means 121 such as an electric motor, hydraulic pressure, or pneumatic actuator.
- a moving means 121 such as an electric motor, hydraulic pressure, or pneumatic actuator.
- a braking means or driving means 127 may be provided at the other axial end of the roll body 120. By adjusting the rotational speed of the roll body 120 with the braking means or driving means 127, The belt-shaped plastic film F can be fed out at an expected speed.
- the roll body 120 itself is moved along its axis.
- a spline groove that fits the spline teeth may be provided in the formed through portion, and only the original film 100 may be slid along the axis of the roll body 120 using this. , the roll body 120 need not be moved along the axis.
- the stopper 124 is configured to be movable along the axis of the roll body 120, and according to the command from the control unit 123, the stopper 124 is moved. The stopper 124 is actuated to move the original film 100 along with the paper tube 101 along the axis of the roll body 120 .
- a detection means 122 is provided above the raw film 100 for detecting the center position in the width direction of the strip-shaped plastic film F immediately after being rewound from the raw film 100.
- the detecting means 122 may be of any type as long as it can detect the center position of the belt-shaped plastic film F in the width direction.
- a method of detecting the width of a method of irradiating the plastic film F with ultrasonic waves, lasers, etc., and detecting the edge by judging what has been transmitted or reflected by the detector, etc.
- the information (center position in the width direction of the plastic film F) detected by the detection means 122 is transmitted to the control unit 123, and the deviation from the preset value input in advance is calculated.
- the control unit 123 determines that the deviation from the set value is greater than or equal to the specified range
- the movement means 121 of the rewind roll 102 is driven by a command from the control unit 123, and the roll body 120 moves to the deviation. Slide and move based on In the case of the vertical filling and packaging machine shown in FIG. 16, the set value input to the control unit 123 is the center position of the machine that constitutes the vertical filling and packaging machine.
- the center position in the width direction of the belt-shaped plastic film F unwound from the original film 100 is always the center of the machine constituting the vertical filling and packaging machine. It is automatically adjusted so as to pass through the position and can effectively suppress meandering of the plastic film F over the band running downstream. Therefore, even when there is a possibility that the belt-shaped plastic film F may meander greatly due to a difference in tension, such as when the original film 100 is replaced, the belt-shaped plastic film F can be automatically formed into a belt shape without stopping the operation of the vertical filling and packaging machine.
- the running position of the plastic film F can be adjusted.
- the timing of detection by the detection means 122 sliding of the roll body 120
- the timing of detection by the detection means 122 is set to once/0.1 seconds to 10 seconds, so that stable adjustment can be performed.
- the machine center of the machine constituting the vertical filling and packaging machine means the position between the pair of rolls constituting the vertical sealing roll pair 107 and the horizontal sealing roll pair 108 as shown in FIG.
- the bite center of the horizontal seal roll pair 108 is used.
- the gap between the pair of seal rolls is adjusted to a predetermined gap from the beginning, and in the state where the belt-shaped plastic film F is not caught, the seal rolls Although they are in contact with each other, it is possible to use those that are held in a predetermined gap when the belt-shaped plastic film F is bitten. means the center of the gap in which the belt-shaped plastic film F is bitten. , the ends of the belt-shaped plastic film F in the width direction can be accurately aligned.
- the control unit 123 By setting the center position of the belt-shaped plastic film F in the width direction in this manner so as to pass through the center position of the machine that constitutes the vertical filling and packaging machine, even if the belt-shaped plastic film F to be used is changed, the control unit 123 In addition, by feeding out the belt-shaped plastic film F in line with the center of the machine, it is possible to effectively suppress meandering. leakage, pinholes, etc.) can be suppressed.
- the detection means 122 provides markings at the center position in the width direction of the belt-shaped plastic film F and at the required positions of the vertical filling packaging machine (markings that match the center of the machine). are detected at the same time, and the roll body 120 (raw film 100) may be slid along the axis so that the center position of the belt-shaped plastic film F in the width direction coincides with the marking.
- the adjustment (centering) of the center position in the width direction of the belt-shaped plastic film F by movement of the original film 100 is performed by the rewind roll 102 (roll body 120, moving means 121, detection means 122 and control unit 123). Therefore, there is no need to modify the machine body of bag making equipment such as vertical filling and packaging machines, it can be retrofitted to existing bag making equipment, and the model of bag making equipment It has the advantage of high versatility because it does not choose
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Abstract
Description
(1)前記誘導体の移動は、該誘導体の軸芯を含む水平面内で該誘導体の軸芯に沿った方向への移動であり、前記誘導体の回動は、該誘導体の軸芯を含む水平面内で予め設定された支点を中心とする回動であり、前記誘導体の傾動は、帯状プラスチックフィルムの幅方向に直交する方向に対する傾動であること、
(2)前記移動手段は、前記ベースを介して前記誘導体を移動または回動させる駆動源と、前記帯状プラスチックフィルムの幅方向の中心位置および/または両端縁位置を、該誘導体の上流側および/または下流側で検出する検知手段と、該検知手段にて検出された検出結果にしたがい、該駆動源を作動させる制御部と、を有すること、
(3)前記移動手段は、前記ベースを介して前記誘導体を傾動させる駆動源と、前記帯状プラスチックフィルムの幅方向の中心位置および/または両端縁位置を、該誘導体の上流側および/または下流側で検出する検知手段と、該検知手段にて検出された検出結果にしたがい、該駆動源を作動させる制御部と、を有すること、
(4)前記ベースは、該ベースの後端部につながり、前記駆動源により回転させることにより前記誘導体を、該ベースを介して傾動させる軸体を有すること、
(5)前記誘導体は、その上流側、下流側および側部直近の少なくとも1か所に配置され、該誘導体に巻き掛けられた帯状プラスチックフィルムの巻き掛け領域を除く領域を、摺接させつつその摺接領域を向かい合わせに保持する一対のロッドを有すること、
(6)前記誘導体は、軸受けを介して転動可能に保持され、前記プラスチックフィルムの幅方向に沿う回転軸芯を有するガイドロールであること、
(7)前記ガイドロールは、ロール径がその幅方向において一定に保持されたロール胴を有すること、
(8)前記ガイドロールは、ロール径がその幅方向の中央部で最も拡大された最大拡径部と、該最大拡径部の両側にそれぞれつながり、該最大拡径部から該ガイドロールの幅方向の端部に向けて漸次にロール径が縮小された縮径部とを有すること、
(9)前記最大拡径部は、前記縮径部との境界をそれぞれ形成する境界角部と、該境界角部の相互間でガイドロールの軸芯に平行な巻き掛け面を形成する帯状体とを備え、前記縮径部は、ロール径が最も縮小された最小縮径部に、帯状プラスチックフィルムの巻き掛け端を形成する端縁角部を有すること、
(10)前記縮径部は、前記境界角部と前記端縁角部との間に前記帯状プラスチックフィルムとの非接触域を形成する凹部を有すること、
(11)前記ガイドロールは、ロール胴の幅方向の端部に、前記帯状プラスチックフィルムに接触して該帯状プラスチックフィルムを摺動させるか、または、該帯状プラスチックフィルムに接触して転動するサブガイドを有すること、
(12)前記サブガイドは、前記帯状プラスチックフィルムを押圧する向き、または該帯状プラスチックフィルムから離れる向きに移動可能な移動手段を有すること、
が好ましい。
(1)前記巻き戻しロールは、前記フィルム原反を保持し、軸受けを介して回転可能に支持されたロール本体と、該ロール本体の軸端につながり、該ロール本体をフィルム原反とともに、該ロール本体の軸芯に沿って移動させる移動手段と、巻き戻し直後の帯状プラスチックフィルムの幅方向の中心位置を検知する検知手段と、該検知手段にて検知された情報にしたがい該移動手段によって該ロール本体を該フィルム原反とともに該ロール本体の軸芯に沿って移動させて、巻き戻しに係わる帯状のプラスチックフィルムの幅方向の中心位置を変化させる制御部と、を有すること、
(2)前記ロール本体は、該ロール本体の回転速度を調整する制動手段または駆動手段を有すること、
(3)前記フィルム原反は、その外表面において前記帯状のプラスチックフィルムをロール状に巻き回すとともに、その内側に形成された貫通孔部を、前記ロール本体の胴体部分に適合させて、該ロール本体の回転に同期して回転可能な環状体を有すること、
が好ましい。
なお、図1~6では、一対のロッド4a、4bを、搬送ガイド1の上流位置に設けた場合について示したが、一対のロッド4a、4bは、搬送ガイド1の幅方向両側部にそれぞれ隙間を隔てて設けることもできるし、搬送ガイド1の下流位置に設けることもできる。
なお、図14に示すように最大拡径部20aが帯状体20a1からなる場合、ガイドロール20を前記したようにベース30を介して、移動、回動もしくは傾動させると、巻き掛けられた帯状プラスチックフィルムFは、最大拡径部20aである帯状体20a1に向かってスライドし易くなる。しかも、帯状プラスチックフィルムFは、最大拡径部20aと縮径部20bとの境界をそれぞれ形成する境界角部20c1、20c2と、縮径部20bのうちのロール径が最も縮小された端縁角部20d1、20d2との4点で強く接触することになる。そのため、帯状プラスチックフィルムFの搬送経路を変更する制御において、応答性の高い制御を行うことができ、該帯状プラスチックフィルムFの幅方向中心位置または幅方向両端縁位置を所期した位置に迅速に、精度よく一致させることができる。なお、帯状体20a1のロール軸21方向の幅寸法Dは0.2mm~5.0mm程度、とりわけ0.5mm程度とすることが好ましい。
なお、搬送ガイド1は、縦シールロール対107から上流側に50~500mm、好ましくは100~300mmの位置に設けることができるが、該搬送ガイド1は、充填ノズル109の設置位置よりも下流側に設置してもよい。
なお、本実施形態では、ヒートシール手段として、シールロール対(縦シールロール対107および横シールロール対108)を設けた場合を一例として示しているが、該ヒートシール手段は、幅方向において少なくとも2つに折り返された帯状プラスチックフィルムFを長手方向および/または幅方向にシールすることができればどのようなものであってもよく、一対のシール板などを用いてもよい。
20 ガイドロール
20a 最大拡径部
20a1 帯状体
20b 縮径部
20c1、20c2 境界角部
20d1、20d2 端縁角部
20e 凹部
21 ロール軸
21a 軸受け
22、23 支持部
22a、23a 軸受け
24,25 サブガイドロール
26 ロール軸
26a 軸受け
3 移動手段
30 ベース
30a 水平部
30b 傾斜部
30c 支持部
31 駆動源
32 制御部
33 軸体
34 ガイド
35 スライダー
36 検知手段
4a、4b ロッド
5 スリット
6 支持壁
100 フィルム原反
101 紙管
102 巻き戻しロール
103、104 ガイドロール
105 天ロール
107 縦シールロール対
108 横シールロール対
109 充填ノズル
110 冷却ロール対
111 走間カッター
120 ロール本体
121 移動手段
122 検知手段
123 制御部
124 ストッパー
125 回転支持部
126 軸受け
127 制動手段または駆動手段
F 帯状プラスチックフィルム
W 包装袋
M 被包装物
S 縦シール部
S1 横シール部
T 突出先端
P 支点
C 機械中心
Claims (19)
- 上流側から移送される帯状プラスチックフィルムをその幅方向の少なくとも中央域で誘導体の外表面に巻き掛け、その巻き掛け状態を維持しながら下流側へ向けて該帯状プラスチックフィルムを搬送するに当たり、
前記帯状プラスチックフィルムが巻き掛けられた該誘導体を、該誘導体につながるベースを介して移動、回動もしくは傾動させて該帯状プラスチックフィルムの、該誘導体に対する摩擦抵抗、該帯状プラスチックフィルムの張力を変動させて該帯状プラスチックフィルムを該誘導体の外表面に沿いスライドさせることにより該帯状プラスチックフィルムの搬送経路を変更することを特徴とする帯状プラスチックフィルムの搬送方法。 - 前記誘導体の移動は、該誘導体の軸芯を含む水平面内で該誘導体の軸芯に沿った方向への移動であり、前記誘導体の回動は、該誘導体の軸芯を含む水平面内で予め設定された支点を中心とする回動であり、前記誘導体の傾動は、帯状プラスチックフィルムの幅方向に直交する方向に対する傾動であることを特徴とする請求項1に記載した帯状プラスチックフィルムの搬送方法。
- 上流側から移送される帯状プラスチックフィルムを外表面に巻き掛けて下流側へ向けて誘導する搬送ガイドであって、
前記帯状プラスチックフィルムの幅方向の少なくとも中央域を巻き掛ける誘導体と、該誘導体につながるベースと、該帯状プラスチックフィルムを巻き掛けたまま該ベースを介して誘導体を移動、回動もしくは傾動させて、該帯状プラスチックフィルムを該誘導体の外表面に沿いスライドさせることにより、該帯状プラスチックフィルムの搬送経路を変更する移動手段と、を備えることを特徴とする帯状プラスチックフィルムの搬送ガイド。 - 前記誘導体の移動は、該誘導体の軸芯を含む水平面内で該誘導体の軸芯に沿った方向への移動であり、前記誘導体の回動は、該誘導体の軸芯を含む水平面内で予め設定された支点を中心とする回動であり、前記誘導体の傾動は、帯状プラスチックフィルムの幅方向に直交する方向に対する傾動であることを特徴とする請求項3に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記移動手段は、前記ベースを介して前記誘導体を移動または回動させる駆動源と、前記帯状プラスチックフィルムの幅方向の中心位置および/または両端縁位置を、該誘導体の上流側および/または下流側で検出する検知手段と、該検知手段にて検出された検出結果にしたがい、該駆動源を作動させる制御部と、を有することを特徴とする請求項3または4に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記移動手段は、前記ベースを介して前記誘導体を傾動させる駆動源と、前記帯状プラスチックフィルムの幅方向の中心位置および/または両端縁位置を、該誘導体の上流側および/または下流側で検出する検知手段と、該検知手段にて検出された検出結果にしたがい、該駆動源を作動させる制御部と、を有することを特徴とする請求項3または4に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記ベースは、該ベースの後端部につながり、前記駆動源により回転させることにより前記誘導体を、該ベースを介して傾動させる軸体を有することを特徴とする請求項6に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記誘導体は、その上流側、下流側および側部直近の少なくとも1か所に配置され、該誘導体に巻き掛けられた帯状プラスチックフィルムの巻き掛け領域を除く領域を、摺接させつつその摺接領域を向かい合わせに保持する一対のロッドを有することを特徴とする請求項3または4に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記誘導体は、軸受けを介して転動可能に保持され、前記プラスチックフィルムの幅方向に沿う回転軸芯を有するガイドロールであることを特徴とする請求項3または4に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記ガイドロールは、ロール径がその幅方向において一定に保持されたロール胴を有することを特徴とする請求項9に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記ガイドロールは、ロール径がその幅方向の中央部で最も拡大された最大拡径部と、該最大拡径部の両側にそれぞれつながり、該最大拡径部から該ガイドロールの幅方向の端部に向けて漸次にロール径が縮小された縮径部とを有することを特徴とする請求項9に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記最大拡径部は、前記縮径部との境界をそれぞれ形成する境界角部と、該境界角部の相互間でガイドロールの軸芯に平行な巻き掛け面を形成する帯状体とを備え、前記縮径部は、ロール径が最も縮小された最小縮径部に、帯状プラスチックフィルムの巻き掛け端を形成する端縁角部を有することを特徴とする請求項11に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記縮径部は、前記境界角部と前記端縁角部との間に前記帯状プラスチックフィルムとの非接触域を形成する凹部を有することを特徴とする請求項11に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記ガイドロールは、ロール胴の幅方向の端部に、前記帯状プラスチックフィルムに接触して該帯状プラスチックフィルムを摺動させるか、または、該帯状プラスチックフィルムに接触して転動するサブガイドを有することを特徴とする請求項9に記載した帯状プラスチックフィルムの搬送ガイド。
- 前記サブガイドは、前記帯状プラスチックフィルムを押圧する向き、または該帯状プラスチックフィルムから離れる向きに移動可能な移動手段を有することを特徴とする請求項14に記載した帯状プラスチックフィルムの搬送ガイド。
- ロール状に巻回されたフィルム原反から帯状プラスチックフィルムを順次に巻き戻す巻き戻しロールと、
該巻き戻しロールにて巻き戻された帯状プラスチックフィルムを、外表面に巻き掛けて上流側から下流側に向けて誘導する請求項3~15のいずれか1項に記載の搬送ガイドと、
該搬送ガイドの出側において、少なくとも2つに折り返された前記帯状プラスチックフィルムを挟持し、加圧、加熱して該帯状プラスチックフィルムの長手方向および/または幅方向に1または2以上のシール部を形成して帯状プラスチックフィルムを袋状とするヒートシール手段と、
を備える製袋装置。 - 前記巻き戻しロールは、前記フィルム原反を保持し、軸受けを介して回転可能に支持されたロール本体と、該ロール本体の軸端につながり、該ロール本体をフィルム原反とともに、該ロール本体の軸芯に沿って移動させる移動手段と、巻き戻し直後の帯状プラスチックフィルムの幅方向の中心位置を検知する検知手段と、該検知手段にて検知された情報にしたがい該移動手段によって該ロール本体を該フィルム原反とともに該ロール本体の軸芯に沿って移動させて、巻き戻しに係わる帯状のプラスチックフィルムの幅方向の中心位置を変化させる制御部と、を有することを特徴とする請求項16に記載した製袋装置。
- 前記ロール本体は、該ロール本体の回転速度を調整する制動手段または駆動手段を有することを特徴とする、請求項17に記載した製袋装置。
- 前記フィルム原反は、その外表面において前記帯状のプラスチックフィルムをロール状に巻き回すとともに、その内側に形成された貫通孔部を、前記ロール本体の胴体部分に適合させて、該ロール本体の回転に同期して回転可能な環状体を有することを特徴とする請求項17または18に記載した製袋装置。
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JP2004292078A (ja) * | 2003-03-25 | 2004-10-21 | Sekisui Plastics Co Ltd | 発泡シートの重なり防止機構 |
JP2015059027A (ja) * | 2013-09-19 | 2015-03-30 | 株式会社Screenホールディングス | 搬送装置、画像記録装置、および検出方法 |
JP2016045377A (ja) * | 2014-08-22 | 2016-04-04 | グラフテック株式会社 | 電子写真方式のラベルプリンタ |
JP2016137989A (ja) * | 2015-01-29 | 2016-08-04 | 株式会社沖データ | 蛇行修正装置、ロール媒体搬送装置、及び画像処理装置 |
JP2016210481A (ja) * | 2015-05-11 | 2016-12-15 | 株式会社進洋 | 製袋機 |
JP2017160052A (ja) * | 2016-03-07 | 2017-09-14 | 富士フイルム株式会社 | ウェブ位置制御装置 |
JP2017196744A (ja) * | 2016-04-25 | 2017-11-02 | セイコーエプソン株式会社 | 画像形成装置、記録媒体の搬送制御方法 |
JP2019070694A (ja) * | 2017-10-06 | 2019-05-09 | 株式会社リコー | ベルト装置、及び、画像形成装置 |
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