JPH0471770B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention involves making a pouch from a sheet-like packaging material made by pasting together a plastic sheet, aluminum foil, etc. in a sterile state, and filling the pouch with objects one after another. The present invention relates to an aseptic bag forming and filling device for filling.

[Prior art and problems]

Generally, an apparatus for automatically filling liquids such as soft drinks, juices, milk, or other viscous substances into pouches formed from film materials under aseptic conditions is vertically shaped as shown in FIG. That is, a filling liquid is supplied from a filling nozzle 2 into a cylindrical bag 1, an appropriate position of the bag 1 is adhered by an adhesive device 3, and then the adhesive part is cut with a cutter 4 to take out the filled product 5. I have to.

Such a vertical filling device is designed to adhere and cut the film with the liquid 6 filled in the cylindrical bag 1, so that the filling liquid gets into the adhesive part and the adhesion is sufficiently performed. In addition, it is impossible to fill with a liquid containing solids because the solids are caught in the bonded portion, making it impossible to bond.

In addition, as shown in FIG. 2, the plastic sheet S2 is folded vertically into two sheets,
7, and on the way, bottom sealers 8, 8 and side sealers 9, 9 perform bottom sealing and side sealing, and then cut vertically with a cutter (not shown) to form a pouch and fill the pouch with the filling material in the next step. Vertical bag making and aseptic filling equipment is also being considered.

However, when a sheet is folded lengthwise into two pieces, not only the left and right folded pieces may not align and shift, but also the plastic sheet used to keep the top surface of the two-folded sheet constant. There is a problem in that the position of the folding member for folding up two sheets must be adjusted according to the width, making the operation complicated.

[Purpose of the invention]

In view of these points, the present invention is easy to operate and has two
To provide an aseptic bag forming and filling device which can produce filling pouches in a completely sterile state in which both pieces of a folded sheet are perfectly aligned and do not shift, and can seal liquids containing solids in a perfect sealing state. purpose.

[Structure of the invention]

This purpose consists of a sterilization tank for sterilizing the continuous sheet by immersing the continuous sheet sent out from the sheet roll in a sterilizing solution, and a sterilization tank that sterilizes the continuous sheet by immersing it in a sterilizing solution, and a stacking device that sterilizes the continuous sheet in the center adjacent to this sterilization layer. A bag-making unit that cuts the two pieces into two pieces, stacks these two pieces one above the other, transports them horizontally, performs bottom sealing and side sealing, and makes pouches; and this bag-making unit. A filling section is provided at the joint between the bag making section and the filling section to produce a pouch in a horizontal state. This is achieved by comprising a delivery device for receiving the bag from the bag portion and delivering it vertically to the conveying device of the filling portion.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 3 to 14.

3 to 5, the filling apparatus M of the present invention includes a bag-making section 10 for making pouches from a continuous sheet wound into a roll, and a bag-making section 10 for filling the pouches made by the bag-making section 10. It consists of a filling part 11 to be filled.

A sterilization tank 12 is adjacent to the bag making section 10, and a support arm 1 extending in the horizontal direction is provided in the sterilization tank 12.
A continuous sheet S from a roll R rotatably supported by rollers 3 and 13 is fed through guide rollers 14, 14, and 14. The sheet S is immersed in a hydrogen peroxide solution (H ₂ O ₂ ) stored in the sterilization tank 12 and extends vertically upward via a bottom roller 15 provided at the bottom of the sterilization tank 12 . It is dried by the provided drying device 16 and sent into the bag making section casing 17.

As shown in FIG. 6, the drying device 16 is provided with scraping nozzles 18, 18 for blowing cold air downward in order to scrape off the H ₂ O ₂ liquid on the sheet, and is provided above the nozzle 18 to blow hot air. It has drying nozzles 19, 19 for blowing out the water, and heating rollers 20, 20 provided above the nozzle 19. The drying device 16 is located in a sterile chamber 21, and the air in this chamber 21 is discharged through an outlet 22.
is discharged from.

Sterile chamber 2 inside the bag making unit casing 17
At the left end in FIGS. 3 and 4 of 3, there is a stacking device 24 for cutting the sheet (film) S fed from the sheet roll R in the longitudinal direction at the center in the width direction to form two sheets. It is provided.

In the overlapping device 24, as shown in FIGS. 7 and 8, two separating rolls 25, 2
5 are arranged in a chevron shape in a plan view, a cutter 26 is provided at the central joining part, and the center of the sheet S is cut by the cutter 26 to produce finely cut pieces S0, S.
1 is pulled out to the left and right, and is guided again to the center of the device 24 by winding pull-out rollers 27, 27 arranged in the feeding direction of the sheet S. Said left and right shredded pieces S
0 and S1 are overlapped by the central overlapping rollers 28, 28, and then pass through the drive rollers 29, 29, the dancer roller 31 provided between the two guide rollers 30, 30, and then the lowermost guide roller 32. They are designed to be guided in a horizontally superimposed state through the

As shown in FIG. 9, a bottom sealer 33,
33 Bottom cooler 34, 34, side sealer 3
5, 35, side coolers 36, 36 and a notch punching member 37 are provided. The bottom sealer 33 and the side sealer 35 are equipped with a heater,
The cut pieces S0 and S1 are sandwiched from above and below to be locally melted and bonded, and the bottom cooler 34 and side cooler 36 cool the bottom seal portion and the side seal portion respectively to prevent them from peeling off again. do.

Further, the notch punching member 37 is a knife 37a.
As shown in FIG. 10, this knife 37a forms a notch n across the cutting line 10 to form a cut when opening the pouch.

Next to the notch punching member 37, as shown in FIG. 11, feed rollers 38, 38 for intermittently drawing out the cut pieces S0, S1 are provided, and near the feed roller 38, the cut pieces S0, S
Cutter that extends in the width direction of 1 (separation cutter)
39, 39 are provided, and when the cut pieces S0, S1 are cut by the cutter 39, they become a pouch P.

An operation panel 40 is provided on the bag making unit casing 17.
The top plate of the casing 17 is provided with air supply ports 41, 41 for supplying sterile air into the chamber 23, and the bottom plate 42 inside the chamber 23 is provided with air discharge ports 43, 43 and a drain. Ports 44, 44 are provided.

The front end in the longitudinal direction of the bag making section 10 (Figs. 3 and 4)
(right end of the figure), as shown in FIGS. 12 and 13, when pre-sterilizing the inside of the chamber 23,
A sheet winding roller 50 is provided for discharging contaminated sheets S0 and S1 that have passed through the sterilization tank 12 and are present in the chamber 23 into the chamber 23. This roll 50 is supported by left and right support arms 51 and can be manually rotated by a handle 52. A ratchet mechanism (not shown) is provided between the support arm 51 and a rotating shaft 53 to which the handle 52 is connected. The rotating shaft 53 is prevented from rotating in reverse. The ratchet mechanism also has a ratchet release handle 54 that allows the rotating shaft 53 to be reversed as required. Disk plates 50a, 50a are fixed to both ends of the rotating shaft 53, and sheets S0, S1 are wound between these disk plates 50a.

A window 55 is provided on the front wall of the chamber 23, and a slit 56 is provided below the window 55 for discharging the sheets S0 and S1, and this slit 56 is opened and closed by a closing plate 57.
This closing plate 57 has left and right guide members 58,
58, and a handle 59 is attached to the center of the closing plate 57 for grasping when moving the closing plate 57.

A guide roll 60 is provided below the slit 56.
is arranged horizontally, and this guide roll 60 is provided with an odometer 61. The odometer 61 determines the rotation of the guide roll 60, that is, the sheet S.
The discharge length of 0, S1 is detected.

An opening/closing window 62 is provided on the front end side wall of the chamber 23.
is formed, and when this opening/closing window 62 is opened, the sheet S
Work such as discharging 0 and S1 out of the slit 56 is performed. At the bottom of the opening/closing window 62, the feed roll 38 in the chamber 23 is inserted into sheets S0, S1.
A release handle 63 is provided for releasing one of the feed rolls from the sheets S0, S1 so that the sheet can be pulled out by the sheet take-up roll 50.

The bag making section 10 and the filling section 11 are arranged in parallel with each other, and a pouch delivery device 70 as shown in FIG. 11 is provided at the joint between the two sections 10 and 11. The pouch delivery device 70 has a swinging arm 71, and a first link 72 is provided at the tip of the swinging arm 71.
is rotatably attached, and the lower end of this first link 72 is fixed to a rotating body 73. A clip mechanism 74 is attached to the side wall of this rotating body 73, and this clip mechanism 74 is connected to two clip plates 75, 7.
6, one clip plate 75 has support plates 77,
77 for rotation, and the other clip plate 7
6 is fixed to the support plate 77. The clip plate 75 rotates together with an operating piece 78, and this operating piece 78 is rotated by an operating rod 79 to clamp the pouch P.

The upper end of the first link 72 is pivotally connected to the lower end of a second link 80, and the second link 80 is pivotally connected to a fixing member 81.

On the other hand, the swing arm 71 is fixed to the tip of a support rod 82, and this support rod 82 is pivotally connected to a support body 83, and on the back side of this support body 83, there is a rotating plate fixed to the shaft of the support rod 82. 84 is provided, and this rotating plate 8
4 is rotated by an operating arm 85.

When the swing arm 71 is in the horizontal position as shown by the solid line in the figure, the clip plate 76 is placed in a position supporting the upper end of the pouch P by the action of the first and second links, and the clip plate 75 is opened. placed in position. When the sheet is cut by the cutter 39, the actuating rod 79 pushes the actuating piece 78 and clamps the pouch P. Next, the actuating arm 85 rotates the rotating plate 84 connected to its tip to swing the swinging arm 71 clockwise in the figure to the position shown by the creative line in the figure. At this time, the rotating body 73 gradually rotates downward due to the action of the first and second links 72 and 80, and when the swinging arm 71 becomes vertical, the pouch P becomes vertical to the clip plates 75 and 76. Retained. In this state, the claws 88, 8 attached to the conveyance chain 90 shown in FIG.
8 clamps the left and right ends of the pouch P. At the same time, the actuating arm 86 presses the actuating piece 78 to open the clip plate 76. In this way, the pouch P is filled with the filling part 11.
The transfer device 70 then returns to its original horizontal position and grips the new pouch again.

Note that the bag making section 10 and the filling section 11 do not necessarily need to be arranged in parallel, and may be arranged in series. In this case, a pouch delivery device is formed in accordance with the arrangement of the pouches.

As shown in FIGS. 3 and 4, the filling section 11 has a casing 100 extending in the longitudinal direction, and clean air inlets 102, 102 are attached to a top plate 101 of the casing 100.
An air outlet 10 is provided on the bottom plate of the casing 100.
3, 103 and drain holes 104, 104 are provided. A filling machine 105 is attached to the approximate center of the top plate 101, and the filling machine 105 has a front filling part 106 and a rear filling part 107, both of which are connected by a connecting pipe 108. 10
A filling nozzle 109 hangs down from 6 so as to be extendable and retractable in the vertical direction.

The conveyance chain 90 has left and right sprockets 1.
10, 111, and a drive device for driving these sprockets 110, 111 is installed in a machine room 112 on the rear side of the line where pouches P are conveyed. The pouch P held by the claw 88 of the conveyance chain 90
During transportation, suction cups 113, 113 are provided movably in a direction perpendicular to the transportation direction.
It is opened to the left and right by the . When the pouch P reaches the filling position where the mouth of the pouch P is opened, the filling nozzle 109 descends and fills the pouch P with a predetermined amount of the filling material from the opening. The opening of the pouch P after filling is then impulse-sealed by top sealers 114, 114, and the pouch P is discharged to the outside through a shuttle 115 provided on the side surface of the filling part casing 100.

Note that below the filling nozzle 109 of the casing 100, there is a filling nozzle 10 as shown in FIG.
A filling nozzle pre-sterilizer 120 for pre-sterilizing the casing 9 with heated steam is provided, and this pre-sterilizer 120 has two guide rods 121, 121 extending in the width direction of the casing. A frame 122 is fixed to this guide rod 121 , and a receiving tube 123 in which the filling nozzle 109 is housed is supported by the frame 122 via a presser frame 124 . This presser frame 124 has slide rods 125 and 1.
The upper end of the slide rod 125 is fixed, and the slide rod 125 is engaged with the frame 122 so as to be vertically slidable. The upper end of a rack 126 is fixed to the side surface of the presser frame 124, and a pinion 128 that extends in the vertical direction and is fixed to the inner end of an operating shaft 127 is engaged with the rack 126. Casing 10 of the operating shaft 127
A handle 129 is fixed to the projecting end that projects outward, and by rotating the handle 129, the receiving cylinder 123 can be moved up and down.

The guide rod 121 and the operating shaft 127 are slidably supported by bearings b, bb... 127 extends through the center of the connecting plate 130, and rotation of the operating shaft 127 causes the presser handle 131 to rotate.
operations are becoming more and more restricted.

The portions of the guide rod 121 and the actuating shaft 131 located inside the casing 100 are fitted with a bellows 13.
2, 132, . . . 132 and placed outside the casing is inserted into the casing, bacteria are prevented from entering the filling chamber. The receiving tube 123 communicates with the outside of the casing via a connecting bellows pipe 133. Bellows tube 13
A nozzle pipe 134 is connected to the nozzle pipe 13.
By constricting the outlet 4, the temperature of the heated steam increases during sterilization of the filling nozzle 109, and sterilization is completed.

During pre-sterilization of the filling nozzle 109, the connecting plate 130 is pushed in and the receiving tube 123 is inserted into the filling nozzle 1.
09, the handle 129 is rotated to raise the receiving cylinder 123 via the pinion 128 and the rack 126, and the filling nozzle 109 is received in the receiving cylinder 123. After that, presser foot handle 13
1 to apply a brake to the rotation of the operating shaft 127 and start pre-sterilization. When the pre-sterilization is completed, the receiving tube 123 is lowered and moved from directly below the filling nozzle 109 to its original position.

The bag making section 10 and the filling section 11 are provided with H ₂ O ₂ spray nozzles for pre-sterilizing the inside of each casing, and the inside of each casing is made to prevent bacteria from entering each casing during operation of the device. Positive pressure is maintained by clean air.

[Action of the invention]

Next, the operation of the present invention will be explained.

Before operating this device and filling the pouch P with the filling material, it is necessary to pre-sterilize the inside of the device.
When pre-sterilizing the bag-making section 10, the stacked sheets S0 and S1 are pulled out of the chamber 23 and wound around the take-up roll 50 as shown in FIG. The dirty sheets S0 and S1 located in the chamber 23 are removed while operating the sealers 33 and 35 (blade 3
9, one of the drive rollers 38 is raised and rotated without being operated. ) Pull out the casing 17. At this time, the chamber 23 is discharged from the H ₂ O ₂ nozzle.
The inside of the chamber 23 is made sterile by spraying H ₂ O ₂ inside.

At this time, the inside of the filling part 11 is also pre-sterilized by the H ₂ O ₂ injection from the H ₂ O ₂ nozzle, and if necessary, the inside of the filling nozzle 109 is also sterilized by the filling nozzle pre-sterilizer 120 shown in FIG. It is then pre-sterilized.

Once pre-sterilization is completed, filling begins.
The wide sheet S from the sheet roll R is in the sterilization tank 1.
2 to dry, and then stacked into two sheets by a sheet stacking device 24. In such a sheet stacking device, even if the width of the sheet S changes, if the widthwise center of the sheet S is always placed on the cutter 26, the position of the upper piece l1 of the sheets S0 and S1 (Fig. 7) will always be maintained. It becomes constant, and there is no need to change the position of a conventional folding member such as a triangular plate depending on the sheet width, making the operation easy. Sheet S ₀ , ₁
After that, the portion facing the upper side (cut side) _l1 is sealed with a bottom sealer 33 to become the bottom of the pouch P. On the other hand, since the upper side _l1 , which always overlaps at a certain position, serves as an opening, the filler can be smoothly filled from this upper side _l1 side as described later.

In addition, since the two stacked sheets S0 and S1 move in a horizontal state in the bag making section 10, both sheets S0 and S1 are at an intermediate position where the pouch P is created.
The overlapping position of the pouch P does not shift and is a regular pouch P.
is made.

The pouch P cut by the cutter 39 at the end of the bag-making section 10 is transferred from a horizontal position to a vertical position by a transfer device 70 to facilitate filling, and then transferred to a conveyance chain 90, where it is opened by a suction cup 113. After filling, top sealer 11
After sealing the opening with 4, chute port 1
It is discharged from 15.

〔Effect of the invention〕

According to the present invention, since the sheet is cut at the center in the width direction by the cutter of the stacking device, the overlapping position of both cut edges is always kept constant to form the upper edge, and the opposing portions of the cut edges are It is sealed with a bottom sealer and becomes the bottom of the pouch. Therefore, the filling material can be smoothly filled into the pouch from the overlapping upper side with high accuracy.
In addition, since the filler is filled into each separated pouch in the filling section, when opening the pouch during filling, the front and rear pouches are not pulled or the front and rear pouches are not affected. Furthermore, since the continuous sheet before bag making is immersed in a sterilization tank, sterilization can be applied to both sides of the sheet.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a conventional vertical filling device, FIG. 2 is an explanatory diagram of a pouch making state in a conventional bag making device, FIG. 3 is a plan view of the filling device of the present invention, and FIG.
The figures are the same front view, Fig. 5 is the same side view, Fig. 6 is a schematic diagram of the drying device, Fig. 7 is a plan view of the sheet stacking device, Fig. 8 is the same front view, and Fig. 9 is the manufacturing process. A schematic diagram of the inside of the bag section, FIG. 10 is an explanatory diagram of the notch formation position, FIG. 11 is a perspective view of the delivery device, FIG. 12 is a perspective view of the joint between the bag making section and the filling section, and FIG. 13 is the bag making section. FIG. 14 is a perspective view of the filling nozzle pre-sterilizer. 10... Bag making section, 11... Filling section, 12... Sterilization layer, 16... Drying device, 24... Layering device, 23... Chamber, 50... Winding roll,
56...Slit, 70...Pouch delivery device,
90... Conveyance chain, 109... Filling nozzle,
120...Filling nozzle pre-sterilizer.

Claims (1)

[Scope of Claims] 1. A sterilization tank for sterilizing the continuous sheet by immersing the continuous sheet delivered from the sheet roll in a sterilizing solution; The sheet is cut in the center into two pieces, and these two pieces are stacked one above the other and transported horizontally to perform bottom sealing and side sealing, and then are separated and separated one by one. a bag-making unit for making a pouch; a filling unit connected to the bag-making unit and configured to fill the separated pouch from the upper side while transporting the pouch in a sterile state using a transport device; a transfer device provided at a joint between the bag making section and the filling section for receiving a pouch in a horizontal state from the bag making section and delivering it in a vertical state to the conveying device of the filling section; The stacking device consists of a separation roll arranged in a chevron shape, a cutter installed at the junction of the separation rolls to cut the center of the sheet in the width direction, and a cutter that once cuts the two cut pieces on both sides. It has a pair of pull-out rollers that are pulled out in opposite directions, and a pair of overlapping rollers that are then brought close together and overlapped, and the bag-making section is a portion that faces the cut side of the sheet and corresponds to the bottom of the pouch. A bottom sealer for sealing the pouch, a side sealer for sealing the part corresponding to the side of the pouch,
A sterile bag making and filling device comprising a separation cutter for cutting the side-sealed portion to produce a separation pouch. 2. The conveyance device of the filling section includes a conveyance chain equipped with claws for protecting both sides of the pouch, and a suction cup provided along the conveyance chain for adhering to the sides of the pouch to open the mouth of the pouch. ,
The aseptic bag making and filling apparatus according to claim 1, characterized in that it has a filling nozzle for filling the pouch with a filling material, and a top sealer for sealing the mouth of the pouch after filling.