JPH0634248Y2 - Film feeding device for vertical bag filling and packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention This invention relates to a vertical bag-making filling and packaging machine in which, when changing the diameter of a packaging film formed into a tubular shape, the interval between the feeding means for the tubular film is changed. The present invention relates to a film feeding device capable of performing adjustment and film setting operations quickly and easily.

BACKGROUND ART Vertical bag-making and filling and packaging machines (generally referred to as "vertical pillow packaging machines"), which are widely used in the field of packaging machines, have a continuous band-shaped packaging film material that is intermittently or continuously placed downwards. In the process of transferring to, while being formed into a tubular shape by a bag-making device, while applying a vertical seal and a horizontal seal at predetermined intervals, after the articles to be packaged are supplied at a required timing,
Further, the tubular film is laterally sealed to obtain a pillow packaging bag.

In this type of vertical pillow packaging machine, as a feeding means of the packaging film formed into a tubular shape, for example, a pair of endless belts are disposed so as to be opposed to each other with a material filling pipe interposed therebetween,
There is a system in which both endless belts are transferred while being in pressure contact with a tubular film located in a filling pipe. In addition, a pair of rollers are rotatably disposed with the overlapping edge portions (portions where vertical sealing is applied) of the packaging film overlapping in the vertical direction sandwiched therebetween, and the rollers are transported while sandwiching the overlapping edge portions. There is also a method.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the vertical pillow packaging machine, the diameter of the packaging film formed into a tubular shape by the bag making machine according to various changes such as dimensional changes of articles to be packaged and other user's requests. Is configured so that it can be changed for each order. This request is
Generally, this is handled by replacing the bag making machine. In this case, like the vertical pillow packaging machine, in the configuration in which the filling pipe is inserted and arranged in the center of the tubular film, the filling pipe also has a diameter corresponding to the dimension of the article for each order change like the bag making machine. Need to replace the pipe. In this way, when the diameter of the filling pipe changes, the distance between the feeding means for the tubular film also has to be adjusted correspondingly.

However, according to the distance distance adjusting device in this kind of feeding means known in the related art, the mechanism and the adjusting operation become extremely complicated, and moreover, a highly accurate distance setting cannot be obtained,
The above-mentioned method using the endless belt has drawbacks such that the endless belt is not pressed against the filling pipe and smooth transfer of the tubular film cannot be achieved. Further, even in the method of sandwiching the overlapping edge portion of the tubular film with a pair of rollers, a complicated and time-consuming adjustment work is required every time the order of the tubular film is changed, and a lot of time loss occurs when the order is changed. It is the current situation.

Further, when changing an order, it is necessary to set a strip-shaped film drawn from a supply source at a predetermined position of the bag making machine and the filling pipe as a preparatory work. In this case, it is pointed out that in the method of transferring the tubular film by the roller, since the roller is arranged close to the filling pipe, the film setting operation becomes complicated.

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to satisfactorily solve the above-mentioned drawbacks incidental to the change of the diameter of the tubular film in the vertical pillow packaging machine described above. It is an object of the present invention to provide a means for adjusting the distance between the feeding means for the strip-shaped film and setting the film easily and quickly.

Means for Solving the Problems In order to overcome the above-mentioned problems and achieve an intended object, the present invention is to form a packaging film into a tubular shape by a bag-making device, and obtain the obtained tubular film into the bag-making product. In a vertical bag-making filling and packaging machine adapted to be fed out below the container, it is arranged in close proximity to the polymerization edge portion of the tubular film facing below the bag-making device, and the polymerization edge portion is sandwiched therebetween. First feeding means composed of a pair of rollers rotatably driven in opposite directions to each other, a position connected to the first feeding means, a position where the overlapping edge portion can be sandwiched, and a position spaced from the overlapping edge portion. Between
Driving means for moving the pair of rollers in a direction intersecting with the film feeding direction, and a guide member facing the inside of the tubular film are disposed so as to face each other, and can be brought into contact with the tubular film and driven in the feeding direction. Second feeding means composed of an endless belt and a film feeding device for feeding the endless belt between a position which is connected to the second feeding means and which can come into contact with the tubular film and a position where it is separated from the film. A fluid pressure cylinder that moves in a direction intersecting the feed direction, and a fluid pressure cylinder that is disposed above the first feeding means and that extends to a position that does not interfere with the overlapping edge portion, and is urged by the driving means. When the pair of rollers are moved toward the overlapping edge portion, the positioning member is brought into contact with the base portion of the bag making machine to stop the roller at a fixed position where the overlapping edge portion can be held. When, Pressure adjusting means connected to the fluid pressure cylinder and causing the endless belt to come into contact with the guide member at a predetermined pressure when the second feeding means is moved toward the tubular film under the urging action of the cylinder. It is composed of and.

Embodiments Next, the film feeding device of the vertical bag-making filling and packaging machine according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

(About Bag Maker) An overhanging portion extending forward is formed on the upper part of the main frame 10 in the vertical pillow packaging machine, and a supply hopper (not shown) is disposed on the upper surface of this overhanging portion. At the same time, a cylindrical article filling pipe 11 (which functions as a guide member) is provided vertically on the lower surface of the projecting portion so as to communicate with the hopper. As shown in FIGS. 1 and 3, a bracket extending radially outward is provided at an appropriate position of the filling pipe 11.
11a is integrally formed, and the bag-making device 12 is arranged around the upper surface of the bracket 11a. That is, bag making device 12
Is composed of a cylindrical guide tube 12a, a sailor-collar-shaped guide blade 12b formed on the top thereof, and a flange 12c formed on the bottom thereof and extending outward in the radial direction.
Is fixed to the bracket 11a with bolts.
Then, when changing the order of the film, when the bag making device 12 is replaced according to the diameter of the tubular film, the dimensions of the guide tube 12a, the guide blades 12b and the flange 12c change correspondingly.

In addition, the first feeding means 14 in the flange 12c.
The distance between the end directed to (described later) and the outer circumference of the filling pipe 11 is such that when the order of the film 13 is changed,
And it is set so that it is always constant even if the filling pipe 11 is replaced.

(Regarding Film Feeding Means) As shown in FIGS. 1 and 4, on one side of the filling pipe 11, overlapping edges of a film 13 formed in a tubular shape by the bag making machine 12 in the longitudinal direction are overlapped. A first feeding means 14 is arranged along the portion 13a. In addition, the second feeding means 14 is provided at a position facing the first feeding means 14 with the filling pipe 11 interposed therebetween.
The feeding means (15) is provided, and the tubular film (13) located on the outer circumference of the filling pipe (11) under the cooperation of both feeding means (14, 15).
Is transferred downward.

(About First Feeding Means) As shown in FIGS. 1 and 5, the main frame 10 is provided with a pair of brackets 16 and 17 which are separated from each other by a predetermined distance in a direction intersecting the axial direction of the filling pipe 11. It is projected parallel to the pipe 11. A right (in FIG. 1) bracket 17 facing the back side of the filling pipe 11 is provided with a pair of housings 18, 18 arranged in parallel at a predetermined interval in the vertical direction, and a guide rod 19 is provided in each of the housings 18. It is slidably inserted. A support member 20 on which the first feeding means 14 is arranged is fixed to the end of the guide rod 19 on the side away from the left bracket 16.

On one side of the support member 20 which faces the filling pipe 11, two roller sets 21 and 21 are arranged vertically with a predetermined interval, and each roller set 21 is a superposed edge of the tubular film 13. Part 13
It is composed of a pair of feed rollers 22 and 22 that sandwich a. The feed rollers 22, 22 are rotationally driven in mutually opposite directions via a power transmission mechanism described later. Further, as shown in FIG. 4, an air cylinder 23 is arranged on the right bracket 17, and the piston rod 23a of the cylinder 23 is attached to the support member 2 as shown in FIG.
It is fixed at 0. Therefore, by urging the cylinder 23 in the forward and reverse directions, the support member 20 moves in parallel while the guide rods 19, 19 are guided by the corresponding housings 18, 18, as shown in FIGS. 1 and 2. Then, the first feeding means 14 is moved toward and away from the filling pipe 11.

In the embodiment, two roller sets 21 and 21 are arranged above and below, but depending on the material of the film 13, the upper and lower roller sets may be arranged.
It is possible to omit 21. Further, instead of the center seal device 46 described later, the feed rollers 28, 28 forming the lower roller set 21 may be seal rollers.

At the upper end of the support member 20, as shown in FIGS. 1 and 3, a positioning member 24 extending toward the filling pipe 11 is provided.
Are arranged horizontally, and the free end 24a of this positioning member 24 is
Are positioned so as to abut the end of the flange 12c of the bag making device 12. The protruding size of the positioning member 24 from the support member 20 is determined by the free end 24 of the positioning member 24.
When the cushioning material 25 arranged in a comes into contact with the flange 12c of the bag making device 12, the sandwiching portions 22a, 22a of the feed rollers 22, 22 are dimensioned to sandwich the overlapping edge portion 13a of the film 13. It is set. That is, the first feeding means is simply moved by urging the air cylinder 23 and moving the support member 20 close to the filling pipe 11 until the cushioning material 25 provided on the positioning member 24 comes into contact with the flange 12c. 14 proper positioning is done.

The positioning member 24 is arranged at a position where it does not interfere with the overlapping edge portion 13a of the tubular film 13, as clearly shown in FIG. The cushioning material 25 is preferably made of an elastic material, and elastically deforms when it comes into contact with the flange 12c to function to absorb the impact. The amount of deformation at this time is set in a range that allows the first feeding means 14 to be positioned at an appropriate position with respect to the filling pipe 11. Further, the air cylinder 23 is connected to an air supply source via pressure adjusting means (for example, a pressure control valve),
While the first feeding means 14 is being positioned, the cushioning material 25 is constantly urged to press the flange 12c with a predetermined pressure so that the position of the first feeding means 14 does not easily change. .

(Regarding Power Transmission Mechanism of First Feeding Means) Two sets of rollers 21, 2 constituting the first feeding means 14
1 is driven by common driving means (not shown), but its power transmission mechanism is the same, so one (upper side)
Only the power transmission mechanism of the roller set 21 will be described.

As shown in FIG. 5, a gear 22b is integrally formed at the end opposite to the end where the sandwiching portion 22a of the feed roller 22 is formed, and meshes with the gear 22b formed on the other pair of rollers 22. And are configured to rotate in mutually opposite directions.
A support shaft 26 is rotatably supported by the support member 20 in the vicinity of one (the side close to the main frame 10) feed roller 22, and a drive gear 27 disposed and fixed to the support shaft 26 is provided. ,
It meshes with the gear 22b of the feed roller 22. Also support shaft 26
Is provided with a timing pulley 28 at an end projecting to the back side of the support member 20 (the side away from the filling pipe 11).
A timing belt 30 is wound between the timing pulley 28 and another timing pulley 29 which is rotatably supported on the back side of the support member 20.

Further, as shown in FIG. 5, a holder 31 for rotatably supporting a bearing (not shown) is arranged on the main frame 10, and a spline shaft 32 extending parallel to the guide rod 19 is provided on the holder 31. Is slidably supported and is integrally rotatable. One end of the spline shaft 32 in the axial direction is connected to the shaft 34 of the timing pulley 29 via a universal joint 33. Also, the holder
A pulley 35 is arranged on a bearing supported by 31, and the pulley 35 is configured to be rotated by a belt 36 which is driven to travel by a driving unit (not shown). That is, when the pulley 35 is rotationally driven, the power is transmitted through the spline shaft 32 → timing pulley 29 → timing belt 30 → timing pulley 28 → driving gear 27 to the both feed rollers.
It is transmitted to 22,22. When the first feeding means 14 moves toward and away from the filling pipe 11, the spline shaft 32 moves correspondingly along the bearing.

It should be noted that an appropriate speed change mechanism, for example, a speed change mechanism formed by combining a ring and a ring cone, is interposed in the power transmission mechanism section, and the peripheral speed of the lower roller set 21 with respect to the upper roller set 21 is set to a high speed. As a result, the film 13 located between the roller sets 21 and 21 can be supported with an appropriate tension.

(Feeding Roller Separation Mechanism) The pair of feeding rollers 22, 22 constituting the roller set 21 are
This mechanism will be described because the nip portions 22a and 22a of the feed rollers 22 and 22 can be separated from each other in order to set the film when the order of the film 13 is changed.

As shown in FIG. 6A, a holding body 38 is rotatably arranged on the supporting member 20 via a pin 37 intersecting the axis of the feed roller 22, and one of the feeding bodies 38 is fed to the holding body 38. A roller 22 (a feed roller on the side that does not directly mesh with the drive gear 27) is rotatably supported. A bolt 39 projecting from the end of the holding body 38 that is separated from the other feed roller 22 and a bolt 41 disposed on the projecting portion 40 projecting toward the filling pipe 11 of the support member 20.
A tension spring 42 is stretched between the feed roller 22 and the other feed roller 22 disposed on the holding body 38, and the clamping portions 22a and 22a are constantly abutted against each other under the elastic action of the tension spring 42. It is configured to touch.

In the vicinity of the end of the holding body 38 where the bolt 39 is provided, a stepped portion that is cut out perpendicularly to the side surface that faces the filling pipe 11.
38a is formed, and the front surface of this step 38a (filling pipe side)
A shaft 43 of a handle (not shown) rotatably supported by the support member 20 faces the shaft. A sleeve 44, which is obtained by cutting a part of a cylinder in the axial direction, is fitted to the shaft 43, and the feed roller 2
In the state where the holding portions 22a, 22a of 2, 2 are in contact with each other, the sleeve 4
The notch 44a of 4 faces the step 38a of the holder 38 in parallel (see FIG. 6 (a)). However, when the handle is rotated in a predetermined direction, the circular arc portion 44b of the sleeve 44 contacts the step portion 38a as shown in FIG.
Move in a direction against the elasticity of 42. That is, the holding body
38 rotates counterclockwise about the pin 37 as a fulcrum, whereby the holding portions 22a, 22a of the feed rollers 22, 22 are separated from each other. The support member 20 has an elongated hole 45 that allows the holder 38 to rotate.
Has been drilled.

(Regarding Center Seal Device) As shown in FIG. 1, a center seal device 46 for vertically sealing the overlapping edge portion 13a of the tubular film 13 is provided between the upper and lower roller sets 21, 21. There is. The basic structure itself of the center seal device 46 is well known in the art, and between the pair of sealers 47, 47 arranged facing each other with a predetermined gap, by passing the overlapping edge portion 13a, the overlapping edge portion 13a is formed. A vertical seal is applied to. This center seal device 46
Like the feed rollers 22 and 22, when the film is set, the pair of sealers 47 and 47 arranged to face each other can be separated from each other. This mechanism will be described.

That is, as shown in FIG. 7A, the center seal device 46 is provided with a base body 51 in which a pair of support plates 49 and 50 are arranged at both longitudinal ends of a stay 48 having a predetermined length. It is disposed and fixed to the support member 20. A pair of guide rods 52, 52 are installed in parallel on both support plates 49, 50, and an air cylinder 55 and a tension spring 63, which will be described later, are mounted on the guide rods 52, 52.
A pair of sealer holding bases 53, 54 that are moved toward and away from each other are slidably arranged. Then, sealers 47, 47 are arranged and fixed on the sealer holding bases 53, 54 in correspondence with the side (front surface side) opposite to the surface directing the stay 48.

On the support plate 50 located on the right side (in FIG. 7),
An air cylinder 55 is provided, and a movable rod 57, which is inserted into the right side sealer holding base 54 at the tip of a piston rod 55a of the cylinder 55 and has a restriction piece 56 provided on the surface facing the left side support plate 49. Is provided. The air cylinder 55 is of a type that is biased only in the direction in which the piston rod 55a is retracted into the barrel, and when the biasing force is released, the piston rod 55a is elastically actuated by a tension spring 63 described later. Is configured to advance from the barrel.

Further, a pivot pin 58 is provided so as to project substantially at the center of the stay 48,
A connecting plate 59 facing the back side of the sealer holding bases 53, 54 is rotatably supported by the pivot pin 58. Slots 59a, 59a are formed near both ends in the longitudinal direction of the connecting plate 59, and one of the slots 59a is slidably inserted with a restriction pin 60 projecting from the rear surface of the left sealer holding base 53. A restriction pin 60 protruding from the back surface of the sealer holding base 54 on the right side is slidably inserted into the other long hole 59a. Therefore, if the air cylinder 55 is urged so that its piston rod 55a is retracted into the barrel, as shown in FIG.
Moves to the right, and the connecting plate 59 rotates in the counterclockwise direction accordingly, so that the left sealer holding base 53 connected to the other end of the connecting plate 59 moves to the left. As a result, the sealers 47, 47 arranged on the respective sealer holders 53, 54 are separated from each other, and the film 13 can be set.

As shown in FIG. 7 (a), a bracket 61 having a shape bent at both ends in the longitudinal direction is disposed on the back surface of the right side sealer holding base 54 through which the movable rod 57 is inserted.
Screw shafts 62, 62 screwed into both bent parts of 61 and the support plate 49 on the left side
The tension springs 63, 63 are stretched between and. Further, an adjusting screw 64 is screwed into the sealer holding base 53 on the left side,
The end of 64 projects by a predetermined length from the facing surface that faces the sealer holding base 54 on the right side. That is, when the biasing force of the air cylinder 55 is released, both sealer holders 53, 5
4 is close to each other under the elastic action of the tension springs 63, 63, and the end of the adjusting screw 64 screwed into the left sealer holding base 53 is in contact with the facing surface of the right sealer holding base 54. It is positioned (see FIG. 7 (a)).

(Regarding the Second Feeding Means) As shown in FIG. 1, a pair of guide rods 65, 65 are arranged in parallel between the pair of brackets 16, 17 arranged on the main frame 10, and both guide rods 65 are provided. Second feeding means 1 to 65
A holding frame 66 having 5 is slidably arranged. On the front side of the holding frame 66 (the side separated from the main frame 10), a pair of pulleys are vertically spaced apart by a predetermined distance.
67, 67 are rotatably supported, and an endless belt 68 is wound around both pulleys 67, 67. As shown in FIG. 4, the endless belt 68 has a ridge 68a protruding in the widthwise center of the back surface.
The ridges 68a are fitted in the circumferential grooves 67a, 67a formed in the pulleys 67, 67. Therefore, the endless belt 68 runs stably without meandering in the direction intersecting the running direction.

As shown in FIG. 4, an air cylinder 69 is arranged on the bracket 16 in the direction away from the filling pipe 11, and its piston rod 69a is connected to the holding frame 66. Therefore, by biasing the air cylinder 69 in the forward and reverse directions, the holding frame 66 (second feeding means 15) moves toward and away from the filling pipe 11. The air cylinder 69 is connected to an air supply source through pressure adjusting means (for example, a pressure control valve), and when the second feeding means 15 approaches the filling pipe 11, the surface portion of the endless belt 68. Is always pressed against the outer circumference of the pipe 11 with a predetermined pressure to feed the film 13 under the predetermined pressure.

As shown in FIG. 1, a belt guide 70 is swingably supported between both pulleys 67, 67 on the back surface side of the endless belt 68 facing the filling pipe 11. The belt guide 70
On the surface of the endless belt 68 facing the back surface, a guide groove (not shown) corresponding to the protrusion 68a is formed over the entire length in the longitudinal direction, and the protrusion 68a of the endless belt 68 is formed in the guide groove. Drive along. That is, this belt guide 70
Serves to prevent the endless belt 68 from bending in a direction away from the filling pipe 11 and to stably run the endless belt 68.

(Power Transmission Mechanism of Second Feeding Means) As shown in FIG. 5, one end of a spline shaft 72 is connected to the shaft of the lower pulley 67 arranged on the holding frame 66 via a universal joint 71. There is. The other end of the spline shaft 72 has a universal joint with the shaft 73 driven by the driving means of the first feeding means 14.
A sleeve 75 connected via 74 is slidably inserted with free rotation being restricted. That is, when the shaft 73 is rotated by the driving means, the rotation of the shaft 73 is transmitted to the pulley 67 via the sleeve 75 → the spline shaft 72, and the endless belt 68 runs in a predetermined direction. The spline shaft
Since 72 is configured to be movable back and forth in the sleeve 75, the holding frame 66 is allowed to move toward and away from the filling pipe 11.

Next, FIG. 8 shows another embodiment of the film feeding device according to the present invention. In the packaging machine according to the embodiment, a film 13 formed into a tubular shape by a bag making machine 12 is used. The filling pipe 11 is not arranged in the traveling article filling zone.
That is, as shown in the drawing, at the bottom of the supply hopper 76 that is correspondingly replaced when the order of the film is changed,
The bag-making device 12 is arranged so as to surround the film-making device, and the film 13 fed from an unillustrated original roll passes between the supply hopper 76 and the bag-making device 12 and is transferred downward. Below the bag making machine 12, a first feeding means 14 and a second feeding means 15 are arranged opposite to each other with a tubular film 13 hanging from the bag making machine 12 interposed therebetween.

At the lower end of the supply hopper 76, as shown in FIG.
A guide plate 77 is disposed so as to hang at a position opposed to the second feeding means 15 with the tubular film 13 interposed therebetween. This guide board
When the second feeding means 15 approaches the tubular film 13 via the air cylinder 69, the film 77 holds the film 13 with the endless belt 68 under a predetermined pressure, Functions to achieve a stable delivery of 13. Also,
The positioning of the first feeding means 14 is performed by positioning the positioning member 24 on the flange 12 of the bag making machine 12 as in the embodiment shown in FIG.
It is done by touching c.

The guide plate 77 is not provided at the lower end of the supply hopper 76, but is arranged, for example, in the frame (not shown) of the packaging machine facing above the bag making machine 12, and the supply hopper is provided.
The gap between 76 and the bag making device 12 may be hung downward. In this case, it goes without saying that the guide plate 77 can be changed in position in accordance with the change in the order of the film 13.

Operation of Embodiment Next, the operation of the film feeding device of the vertical bag-making filling and packaging machine according to the embodiment will be described. As is well known in the wrapping machine, a strip-shaped wrapping film 13 unwound from an original roll 13
Is formed into a tubular shape by the bag making device 12, and the filling pipe 11
Are transported downward along the outer periphery of the product, where the articles are supplied into the tubular film 13.

By the way, when the size of the article to be packed is changed and it is necessary to correspondingly increase or decrease the opening diameter of the tubular film 13, the following operation is performed.
First, each roller set 21 arranged in the first feeding means 14
The nip portions 22a, 22a of the feed rollers 22, 22 are separated from each other via a separating mechanism as shown in FIG. 6 (b). Further, the air cylinder 55 provided in the center seal device 46 is urged to separate the pair of opposed sealers 47, 47 as shown in FIG. 7 (b). In this state, if the air cylinders 23, 69 arranged on the brackets 16, 17 are urged in a predetermined direction, as shown in FIG.
14 and the second feeding means 15 move away from the filling pipe 11.

After that, the bag making device 12 and the filling pipe 11 are replaced with those having corresponding dimensions. At this time, the size of the flange 12c formed integrally with the bag making device 12 also changes correspondingly, but when the guide tube 12a of the bag making device 12 is fitted onto the filling pipe 11, the first flange 12c The separation distance between the end portion directed to the feeding means 14 and the outer peripheral surface of the filling pipe 11 does not change.

Next, after the packaging film 13 whose order has been changed is set in the replaced bag making device 12 and filling pipe 11, the air cylinder 23 is biased in the reverse direction to move the first feeding means 14 closer to the filling pipe 11. . At this time, the first feeding means 14
As shown in FIG. 1, the cushioning material 25 at the free end 24a of the positioning member 24 disposed on the supporting member 20 of the above-mentioned contacting the flange 12c of the bag making machine 12, and in this state, the first feeding means 14 Positioning is done. That is, as described above, the distance between the end of the flange 12c of the bag making machine 12 and the outer periphery of the filling pipe 11 is determined by the bag making machine 12 when the order of the film 13 is changed.
Also, since there is no change even if the filling pipe 11 is exchanged, the first feeding means 14 and the filling pipe 11 are always positioned at a constant interval by merely bringing the positioning member 24 into contact with the flange 12c. Therefore, it is not necessary to separately provide a complicated interval adjusting mechanism, and the cost can be reduced.

Further, the air cylinder 69 is reversely biased to move the second feeding means 15 close to the filling pipe 11, and the endless belt
68 is pressed against the outer circumference of the filling pipe 11. In this case, if the urging pressure of the air cylinder 69 is set to a predetermined pressure, the endless belt 69 is always in pressure contact with the pipe 11 at a predetermined pressure even if the diameter dimension of the tubular film 13 changes. it can. That is, since the tubular film 13 located on the outer periphery of the filling pipe 11 can be fed in a state of being sandwiched by the pipe 11 and the endless belt 69 at a predetermined pressure, stable feeding of the film 13 can be achieved. .

Then, the first feeding means 14 and the second feeding means 15
After moving to the filling pipe 11, the nipping portions 22a, 22a of the feed rollers 22, 22 arranged in the first feeding means 14
Are brought close to each other to sandwich the overlapping edge portion 13a of the film 13 (see FIG. 6 (a)). In addition, the biasing force of the air cylinder 55 of the center seal device 46 is released, and the opposing sealer 4
The preparatory work for order change is completed by moving 7, 47 close to each other with the overlapping edge portion 13a interposed therebetween.

Also in the embodiment shown in FIG. 8, the first feeding means.
The positioning member 24 abuts on the flange 12c of the bag making device 12 that is exchanged when the order of the film 13 is changed so that the tubular film 13 hanging from the bag making device 12 is positioned. Further, the second feeding means 15 is a supply means for exchanging the order of the film 13 if the second film feeding means 15 comes close to the cylindrical film 13 hanging from the bag making device 12 by urging the air cylinder 69. The guide plate 77 hanging from the hopper 76 is contacted and positioned under a predetermined pressure.

In the embodiment, the case where the air cylinder is used as the driving means of the feeding means has been described. However, the present invention is not limited to this, and the feeding means is provided on the filling pipe, the guide plate and the flange of the bag making machine. A hydraulic cylinder, an electric cylinder, a rack and pinion mechanism, or the like can be appropriately used as long as it can be pressed by pressure.

Effects of the Invention As described above, the vertical bag-making filling and packaging machine according to the present invention has the following beneficial effects.

When changing orders, the first step is to set the film.
Since the second feeding means and the second feeding means can be carried out in a state of being separated from the lower position of the bag making machine, workability is extremely excellent and the time required for the work can be shortened.

The pair of rollers in the first feeding means is always set at an appropriate position by the action of the positioning member even when the bag making machine or the filling pipe having a different size is exchanged.

The endless belt in the second feeding means is pressed against the guide member facing the inside of the tubular film with a predetermined pressure by the urging action of the fluid pressure cylinder. Therefore, the tubular film is stably fed while being clamped by the endless belt and the guide member at an appropriate pressure.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a vertical bag-making filling and packaging machine showing a film feeding device according to an embodiment in the vicinity of a filling pipe, and FIG. 2 is a state in which the film feeding device is separated from the filling pipe. The front view of the essential parts of the vertical bag-making filling and packaging machine shown in FIG. 3, FIG. 3 is a cross-sectional plan view taken along the line III-III in FIG. 1, and FIG. 4 is the transverse view of the packaging machine showing the moving mechanism section of the film feeding device. A plan view and FIG. 5 are cross-sectional plan views of a packaging machine showing a power transmission mechanism portion of a film feeding device, and FIG. 6 (a) shows a pair of feed rollers arranged in the first feeding means in proximity to each other. FIG. 6 (b) is a partially cutaway plan view showing the state, and FIG. 7 (a) is a partially cutaway plan view showing the pair of feed rollers arranged in the first feeding means in a separated state. Is a spine which shows the center seal device arranged in the first feeding means in a state in which the pair of sealers are close to each other. FIG. 7 (b) is a rear view showing the center seal device arranged in the first feeding means with a pair of sealers separated from each other, and FIG. 8 is a view showing another embodiment of the present invention. FIG. 9 is a front view of a main portion of a vertical bag-making filling and packaging machine showing the film feeding device in the vicinity of the filling pipe, and FIG. 9 is a vertical sectional view of the vertical bag-making filling and packaging machine shown in FIG. FIG. 11 ... Filling pipe, 12 ... Bag making machine 13 ... Film, 13a ... Overlap edge 14 ... First feeding means 15 ... Second feeding means 22 ... Feed roller, 23 ... Air Cylinder 46 …… Center seal device 67 …… Pulley, 68 …… Endless belt 69 …… Air cylinder, 77 …… Guide plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenji Oya Inventor Kenji Oya 4-380, Nakaodai, Nishi-ku, Nagoya, Aichi Fujikikai Co., Ltd. Nagoya Plant (56) Reference JP-A-55-29453 (JP, A) Sho 62-16323 (JP, A) JP 1-167007 (JP, A) JP 1-124508 (JP, A)

Claims (2)

[Scope of utility model registration request] 1. A packaging film (13) is formed into a tubular shape by a bag making device (12), and the obtained tubular film (13) is fed below the bag making device (12). In the vertical bag-making filling and packaging machine, the bag-making device (12) is arranged in close proximity to the overlapping edges (13a, 13a) of the tubular film (13) facing downward, and the overlapping edges (13a). , 13a), and a first feeding means (14) consisting of a pair of rollers (22, 22) which are rotationally driven in opposite directions, and are connected to the first feeding means (14) to carry out the polymerization. The position where the edge portions (13a, 13a) can be caught and the overlapping edge portions (13a, 13a)
between the pair of rollers (22,
The driving means (23) for moving the film (22) in a direction intersecting the film feeding direction and the guide member (11 or 77) facing the inside of the tubular film (13) are arranged so as to face each other. A second feeding means (15) composed of an endless belt (68) that can be brought into contact with (13) and is driven in the feeding direction, and the tubular film (13) connected to the second feeding means (15). ), A fluid pressure cylinder (69) for moving the endless belt (68) in a direction intersecting the film feeding direction, and a position between the position where the endless belt (68) is separated from the film (13). Is disposed above the feeding means (14) and extends to a position where it does not interfere with the overlapping edge portions (13a, 13a), and the pair of rollers ( When the 22,22) is moved toward the overlapping edge portions (13a, 13a), the base of the bag making machine (12) is By abutting the (12c), said rollers (22, 22) the polymer edge portion (13a, 1
3a) Positioning member (2
4) is connected to the fluid pressure cylinder (69), and the cylinder (6
When the second feeding means (15) is moved toward the tubular film (13) under the biasing action of 9), the endless belt (6)
A film feeding device for a vertical bag-making filling and packaging machine, characterized in that the pressure adjusting means for contacting the guide member (11 or 77) with the guide member (11 or 77) at a predetermined pressure. 2. The first feeding means (14) is provided with a center seal device (46) for vertically sealing the overlapping edge portions (13a, 13a) of the tubular film (13). Film feeding device for vertical bag-making filling and packaging machine.