JP2002302104A - Packaging and filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging and filling machine which need not interrupt a filling and packaging work when switching a film, or need not use any automatic connecting device. SOLUTION: A film stock box 41 for stocking a film P delivered from a film roll 1 is provided between a film delivery device 5 for delivering the film P from the film roll 1 and a tension providing device 11 for holding the film P to give tension to the film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a packaging and filling machine.

[0002]

2. Description of the Related Art In the process of feeding a film drawn from a film roll, a packing and filling machine heats and seals the left and right edges to form a cylindrical intermediate package, and then performs a horizontal seal as a bottom seal. It is a machine that fills the contents to be packed such as konjac and whipped cream, and seals the preceding package and seals the bottom of the next package with the next seal. As the packaging and filling machine, for example, there is one as shown in FIG.

In FIG. 2, reference numeral 1 denotes a film roll on which a heat-sealable synthetic resin film P serving as a packaging material is wound. Reference numeral 2 denotes an upright standing on a base so that the following devices required for filling and packaging can be mounted. And the film roll 1 is supported by two rotatable support rollers 3 and 4 horizontally arranged at an intermediate portion in the height direction on one side of the frame 2. .

A film feeding device 5 is disposed obliquely above the film roll 1 in the film feeding direction. The film feeding device 5 is made of rubber which can be rotated by a film feeding motor 6 through power transmission means 7. A film feeding roller 8 and a rotatable film pressing roller 9 for pressing the film P in cooperation with the film feeding roller 8 when the film P is fed from the film roll 1 by the film feeding roller 8 are provided.

Although not shown, coil springs are provided at both ends in the longitudinal direction of the shaft 10 for rotatably supporting the film pressing roller 9, and the film pressing roller 9 is provided with a coil spring by the coil spring. And is urged to the film feeding roller 8 side via the.

Reference numeral 11 denotes a tension applying device which is disposed obliquely above the film feeding device 5 and on the side away from the film roll 1. The tension applying device 11 includes a rubber rotatable roller 12 and a rotatable roller 12. 2, a rotating force is applied counterclockwise about the shaft 13 as a fulcrum, and the film P wound around the roller 12 is pressed by the roller 12;
The film P is provided with a film holding plate 14 for applying a constant tension to the film P, and a coil spring 16 for applying a counterclockwise rotational force to the film holding plate 14 via an arm 15 attached to the shaft 13.

Reference numeral 17 denotes a film holding roller 9 and a roller 12.
A rotatable tension roller is disposed at a middle portion in the horizontal direction between the tension roller 1 and the lower roller than the film feeding roller 8 and the film pressing roller 9.
7 is a film feeding roller 8 of the film feeding device 5
Is driven, the film P is lowered by its own weight when the film P is unwound from the film roll 1, so that some film P can be stocked, and the film unwinding roller 8 of the film unwinding device 5 is stopped. At this time, it can be raised by the tension acting on the film P.

Although not shown, the tension roller 1
7 is turned on when the tension roller 17 rises and reaches the upper limit position, a drive command is given to the film feeding motor 6 of the film feeding device 5, and the tension roller 17 descends to reach the lower limit position. A switch is provided so as to be turned off sometimes and give a stop command to the film feeding motor 6 of the film feeding device 5.

Reference numeral 18 denotes a meandering correction device arranged above the film roll 1 and on one side of the frame body 2. The meandering correction device 18 includes a member 19 that swings in a direction perpendicular to the paper surface. , A meandering correction roller 20 rotatably provided at upper and lower ends of a member 19 at intervals.

Reference numerals 21 and 22 are located above the tension applying device 11 and are spaced apart from each other in the vertical direction.
And a rotatable idling roller disposed so as to oppose.

Reference numeral 23 denotes a film cylindrical guiding member arranged on the upper side of the other side of the frame 2.
Numeral 3 is formed in a collar shape of clothes.

Numeral 24 denotes a vertical pipe-shaped filling nozzle which is inserted into the film cylindrical guiding member 23 and extends vertically.
Is located immediately below the film cylindrical guide member 23, on the side opposite to the film cylindrical guide member 23 with respect to the filling nozzle 24, and is formed into a cylindrical shape by joining both sides in the width direction. This is a heat sealing device in which a seam on both sides of P is heat-sealed to form a cylindrical film 27 having no non-adhesive portions in the circumferential direction.

Reference numeral 26 denotes a pair of left and right press rollers which are disposed below the heat sealing device 25 and press the heat sealed portion of the tubular film 27 from right and left (in a direction perpendicular to the paper surface). A cylindrical film feed roller that is disposed two on each side on the left and right sides of the sheet 24 and feeds the left and right ends of the cylindrical film 27 from front to back (in a direction parallel to the paper surface) and downward. The cylindrical film feed roller 28 can be driven by a driving device (not shown).

Reference numeral 29 denotes an ironing roller device. The ironing roller device 29 is a pair of levers 30, 30 that can be rotated back and forth with an upper end as a fulcrum by a driving device (not shown). And an ironing roller 31 pivotally supported at the lower end of each lever 30. Ironing roller 3
1 can be driven by a driving device (not shown).

Reference numeral 32 denotes a built-in horizontal seal heater 33 which is disposed below one roller 31 in the ironing roller device 29 and horizontally seals a flattened portion of the cylindrical film 27 which has been flattened. The horizontal seal heater block 32 is horizontally moved by a moving device 34 such as a fluid pressure cylinder so that the horizontal seal heater block 32 can approach and separate from the flat portion of the tubular film 27.

Reference numeral 35 designates a horizontal sealing member which is disposed below the other roller 31 of the ironing roller device 29 and cooperates with the horizontal sealing heater block 32 to reduce the flattened and flattened portion of the cylindrical film 27. The horizontal seal base 35 is horizontally moved by a moving device 36 such as a fluid pressure cylinder so that the horizontal seal base 35 can approach and separate from the flat portion of the tubular film 27. or,
Reference numeral 37 denotes a horizontal sealing portion cutting blade provided on the horizontal sealing table 35 and capable of moving horizontally by a moving device (not shown). The cutting blade 37 moves the horizontal sealing portion of the cylindrical film 27 filled with the filling material 38 horizontally. It is designed to be cut in a direction (a direction perpendicular to the paper surface) to form a filled packaged product 39.

Reference numeral 40 denotes a film remaining amount detector disposed above and in the vicinity of the support roller 4. When the film P is fed out from the film roll 1 and the film roll 1 has a small diameter, the remaining amount of the film P is small. Can be detected.

In the case of manufacturing the filled and packaged product 39, the operation is performed as described below. That is, when the tension roller 17 is at the upper limit position, a switch (not shown) is turned on, and the film feeding motor 6 of the film feeding device 5 is started. For this reason, the film feeding roller 8 is driven via the power transmission means 7, and the film P is fed from the film roll 1, and the fed film P is tensioned by the feeding roller 8.
7 side.

At this time, the film roll 1 is rotated clockwise in FIG. 2 by the tension of the fed film P, and the support rollers 3 and 4 are rotated counterclockwise by the film roll 1. Further, since the film P is pressed by the film pressing roller 9 at the portion of the film feeding roller 8, the feeding of the film P is performed smoothly.

When the film P is unwound from the film roll 1, the tension roller 17 descends under its own weight while applying tension to the film P, and the film unwinding device 5
A small amount of the film P is stocked between the tension applying device 11 and the tension applying device 11. When the tension roller 17 is lowered to the lower limit position, the switch is turned off and the film feeding motor 6 stops, so that the feeding of the film P is also stopped.

On the other hand, since the cylindrical film feed roller 28 is intermittently driven at regular time intervals, the film roll 1
Is pulled by a cylindrical film feed roller 28, and the roller 1 of the tension applying device 11
2. The film cylindrical guiding member 2 through the meandering correcting roller 20 and the idling rollers 21 and 22 of the meandering correcting device 18.
Sent to 3. At this time, the roller 1 of the tension applying device 11
2, the film P is a film holding plate 1 to which a rotational force is applied by a coil spring 16 via an arm 15.
4, the film P is given a constant tension downstream of the rollers 12 in the film advancing direction, and the meandering correcting device 18 corrects the meandering of the film P.

The film P that has reached the film cylindrical guiding member 23 is cylindrically formed by the film cylindrical guiding member 23 so that the joints on both sides are not joined, and the filling nozzle 2
4 is fed downward in a state surrounding the outer periphery of the film 4, and the seam on both sides of the film P in the heat sealing device 25 is heat-sealed in the vertical direction to form the tubular film 2 as a package.
7 is formed.

Prior to supplying the filling material 38 to the cylindrical film 27, the ironing roller 31 before and after the ironing roller device 29 is rotated by a driving device (not shown), as shown in FIG. Cylindrical film 2 close to each other
7 is rotated from the front and rear in the radial direction. For this reason, a portion flattened over a predetermined length in the longitudinal direction is formed in the cylindrical film 27, and the cylindrical film 27 further descends by a predetermined amount and stops. Next, the moving device 34,
36 operates, and the horizontal seal heater 33 and the horizontal seal base 35 are operated.
The flat portion of the cylindrical film 27 which is close to and stopped is heat-sealed to form a tightly sealed horizontal seal portion 27a.

Further, at the same time, the horizontal sealing portion cutting blade 37 is operated to cut the middle portion in the height direction of the horizontal sealing portion 27a in the horizontal direction (the direction perpendicular to the paper surface), so that the lower portion of the horizontal sealing portion 27a is previously placed. The packaged product 39 formed as described above falls downward. At this time, the filled and packaged product 39 is sealed by the upper horizontal seal portion 27a of the dropped packed and packaged product 39, and a bottom seal is formed by the horizontal seal portion 27a at the lower end of the tubular film 27. Further, at the time of cutting the horizontal seal portion 27a, the tip of the horizontal seal portion cutting blade 37 is inserted into the recess 32a formed in the horizontal seal heater block 32, so that the horizontal seal portion 27a can be cut without any trouble.

The filling object 38 is supplied from the filling nozzle 24 into the cylindrical film 27 located above the squeezing roller 31 which is adjacent to each other and forms a flattened portion in the cylindrical film 27. Thus, when a predetermined amount of the filling material 38 is supplied into the cylindrical film 27, the ironing rollers 31 are separated from each other, and a gap is formed between the ironing rollers 31, 31. Therefore, by driving the cylindrical film feed roller 28, the portion of the cylindrical film 27 filled with the filling material 38 descends through the gap formed between the front and rear ironing rollers 31, 31. Thus, when the portion of the cylindrical film 27 filled with the filling material 38 passes through the gap between the ironing rollers 31, 31, the ironing rollers 31, 31 again come close to each other, and the cylindrical film 27 is filled. The upper part not filled with the object 38 is pinched and flattened.

For this reason, a space for filling the filling material 38 is formed above the flattened portion of the cylindrical film 27, and the filling material 38 is filled at the lower end of the flattened portion. Thus, a filled package product 39 whose upper portion is sealed is formed.

In such a state, the horizontal seal heater block 32 and the horizontal seal base 35 are operated, and the flattened portion is heat-sealed to form the horizontal seal portion 27a, and the horizontal seal portion cutting blade 37 forms the horizontal seal portion. The seal portion 27a is cut at the middle portion in the height direction, and the filled and packaged product 39 hanging at the lower end of the horizontal seal portion 27a falls downward. Further, a space for supplying the filling material 38 is formed above a portion of the cylindrical film 27 which is sandwiched by the ironing rollers 31.

As described above, as the tubular film 27 is intermittently sent downward and the filled and packaged product 39 is manufactured,
The tension roller 17 is pulled by the film P and gradually rises. When the tension roller 17 reaches the upper limit position, the switch is turned on again, and the film feeding motor 6 of the film feeding device 5 is driven. For this reason, the film P is fed out from the film roll 1, and the film feeding device 5 and the tension applying device 11 are moved downward by the weight of the tension roller 17.
The film P is stored between the
9 is continued.

As the film P is unwound from the film roll 1, the diameter of the film roll 1 becomes smaller.
When the diameter becomes smaller than the predetermined diameter, the film remaining amount detector 4
It turns out that the remaining amount of the film P in the film roll 1 is small because 0 is turned on and an alarm sounds. Then, the worker prepares the next new film roll 1,
When all of the film rolls 1 mounted on the support rollers 3 and 4 have been fed, the filling and packaging are temporarily interrupted, and the prepared film rolls 1 are placed on the support rollers 3 and 4 so that the film rolls Feed the film P slightly from 1
The leading end of the film P is connected to the trailing end of the previously fed film P using an adhesive tape or the like, and the film P is switched.

However, the amount of the film P stocked in the portion of the tension roller 17 is small, and there is no time margin for switching the film roll 1.
When connecting the trailing end of the fed-out preceding film P and the leading end of the film P in the new film roll 1, the filling and packaging work must be temporarily interrupted.
However, when the filling and packaging work is temporarily interrupted, if the product has a foaming process or a coagulation process in the previous process,
There is a risk that product quality will change.

Therefore, in order to solve such a problem and quickly exchange the film without interrupting the filling and packaging work, a film roll is mounted on each of the two shafts, and the remaining film of one film roll is left. There has been proposed an automatic film connecting device (auto-supplier) that can automatically connect the leading end of the film of the other film roll to the trailing end of the film of the one film roll when the amount decreases.

[0032]

However, the automatic film splicing apparatus has a problem that the apparatus is large in size, requires a large space, and is expensive. As a result, the packing and filling machine itself has a large size. There is a problem that the price increases.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a packaging and filling machine which does not need to interrupt the filling and packaging operation when changing a film and does not need to use an automatic film connecting device.

[0034]

The packing and filling machine of the present invention comprises:
A sheet-like film is formed into a cylindrical shape, and a predetermined portion in the longitudinal direction of the cylindrical portion is sandwiched from the radial direction of the cylindrical portion to form a flat portion, and the packing body is filled with the filling material, and the filled packaged product is formed. A packaging and filling machine adapted to be manufactured, wherein the packaging and filling machine pulls a film wound around a film feeding roller by driving a driving device and rotating the film feeding roller to pull the film from a film roll. A film feeding device that feeds, and a tension applying device that is installed on the downstream side in the film feeding direction of the film feeding device and applies tension to the film by pressing the film before being formed into a tubular shape with a film pressing plate. In the state between the film feeding device and the tension applying device, the film fed from the film roll is stacked in a substantially zigzag shape. Tsu are those with a film stock box to click.

In the film stock box of the packing and filling machine of the present invention, a film feeding instruction plate which can be turned up and down is provided, and the film feeding instruction plate feeds the stock film. When the film feeding device is rotated to the upper limit position, a drive command is given to the driving device of the film feeding device, and when the film feeding instruction plate is turned to the lower limit position by its own weight, a stop command is given to the driving device. It is configured to obtain.

According to the present invention, when the driving device of the film feeding device is driven, the film feeding roller rotates and the film is pulled, and the film fed from the film roll is substantially zigzag in the film stock box. Stocked in a stacked state. For this reason, the film is fed out of the film stock box during the production of the filled packaging product.

When all of the film is unwound from the film roll and the leading end of the new film roll is connected to the trailing end of the preceding film, the leading film is stored in the film stock box. Is connected to the new film roll with the adhesive tape or the like.

According to the present invention, the film can be connected without interrupting the filling / packaging operation, so that the production of the filled / packaged product can be performed efficiently and there is no need to install an automatic film connecting device. Therefore, it is possible to reduce the size of the device, save space, and reduce the cost.

[0039]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of an embodiment for carrying out the present invention. In the drawing, portions denoted by the same reference numerals as those in FIG. 2 represent the same components. In the illustrated example, instead of the tension roller 17 shown in FIG. 2, as shown in FIG. 1, the film roll 1 mounted on the support rollers 3 and 4 is provided below the film feeding device 5 and the tension applying device 11. A vertically long rectangular parallelepiped film stock box 41 is provided so as to be located on the radially front surface of the box. In addition, immediately below the film feeding roller 8 of the film stock box 41,
An opening 41a for feeding the film P into the film stock box 41 is formed, and an opening 41b for feeding out the film P stored in the film stock box 41 is formed directly below the roller 12. .

In the film stock box 41, a shaft 42 parallel to the support roller 3 and the like is provided so as to be located near the opening 41a.
The upper end of 3 is fixed. Thus, the film feeding instruction plate 43 can rotate around the shaft 42 in parallel with the paper surface, and when the film P in the film stock box 41 is fed and the remaining amount is small, the film stock box 43 is rotated. The film P in 41 is hooked on the front end of the film feeding instruction plate 43 so that the film feeding instruction plate 43 can be rotated to the upper limit position by tension. Also, the film P is stored in the film stock box 41.
When the stock is stored, the film feeding instruction plate 43 can rotate to the lower limit position (the position shown in FIG. 1) by its own weight.

Although not shown, a portion of the shaft 42 outside the film stock box 41 is a film feeding instruction plate 4.
A cam plate is provided so as to be able to rotate integrally with the film feeder 3, and is turned on by the cam plate when the film feeding instruction plate 43 reaches the upper limit position on the outer side of the film stock box 41. A switch is provided for giving a start command to the film feed motor 6 of the film feed device 5 and turning off the cam plate when the film feed instruction plate 43 reaches the lower limit position to give a stop command to the film feed motor 6. .

Next, the operation of the illustrated example will be described. When the film P is sufficiently stocked in the film stock box 41 in a substantially zigzag manner as shown in FIG. 1 at the time of manufacturing the filled packaging product 39, the film feeding instruction plate 43 is at the lower limit position and the film feeding is performed. The film feeding motor 6 of the apparatus 5 is stopped. Therefore, the film P is not fed from the film roll 1. Thus, in this case, the filled and packaged product 39 is manufactured in the same manner as described with reference to FIG. 2, but in this case, the film P stored in the film stock box 41 is a cylindrical film. The opening 4 is driven by the driving of the feed roller 28.
2b, and is fed downstream via the tension applying device 11.

By the way, the film stock box 41
Almost no tension is applied to the film P stored therein. However, film stock box 4
Since a predetermined tension acts on the film P fed from 1 by being pressed by the film pressing plate 14 in the tension applying device 11, the extension of the film P is kept constant. For this reason, even in the case where characters or patterns are printed on the film P by a printing device (not shown) before reaching the film cylindrical guide member 23, printing is performed at a predetermined position in the longitudinal direction of the film P. And characters and designs do not shift in the longitudinal direction.

When the remaining amount of the film P in the film stock box 41 becomes small, the film P in the film stock box 41 becomes the film feeding instruction plate 43.
Of the film feed indicator 4
Numeral 3 turns upward with the shaft 42 as a fulcrum and rotates clockwise in FIG. When the film feed instruction plate 43 reaches the upper limit position, the switch is operated via the cam plate and the film feed motor 6 of the film feed device 5 is driven. 8 rotates, and as a result, the film P is unwound from the film roll 1 mounted on the support rollers 3 and 4.

The film P fed from the film roll 1 is fed to the downstream side by the film feed roller 8, is fed into the film stock box 41 from the opening 41a, and is stocked in a substantially zigzag shape. When the film P is stocked in the film stock box 41 in this manner, the film feeding instruction plate 43 rotates counterclockwise downward by its own weight. When the film feeding instruction plate 43 reaches the lower limit position, the switch is turned off via the cam plate and the film feeding motor 6 stops, so that the feeding of the film P from the film roll 1 is stopped.

When the film P is fed out from the film roll 1 and the diameter of the film roll 1 is reduced, the remaining film detector 40 reduces the remaining amount of the film P (for example, 20 to 30 m) in the film roll 1. Is detected, a buzzer sounds, and an alarm is given to the worker. When the film P is completely unwound from the film roll 1, the operator mounts a new film roll 1 on the support rollers 3 and 4, and advances the leading end of the film P from the mounted film roll 1 to move ahead. The front end of the film P unwound from the new film roll 1 is connected to the rear end of the film P with an adhesive tape or the like.

In the illustrated example, since a sufficient length of the film P is stocked in the film stock box 41, there is a time margin for connecting the film P, and the filling and packaging operation is interrupted. The connection of the film P is possible without it. Accordingly, efficient production of the filled and packaged product 39 can be performed.

By the way, the size of commercially available konjac is 180
mm, the filling speed is about 45 bags / min, and the consumption of the film P is 8.1 m / min.
Is stored in the film stock box 41 for 20 m, there is a time of 2 minutes and 30 seconds before the film P in the film stock box 41 is fed, and the leading end of the film P in the new film roll 1 is moved forward. Enough time to connect to the back end.

In the case of whipped cream, the weight is 2.5k
The pitch of the film P required for the size of g (24.5N) is 350 mm and the packaging speed is 10 bags / min.
Is 3.5 m / min. Therefore, assuming that the stock amount in the film stock box 41 is 20 m, the film P
For 5 minutes or more.

In the illustrated example, there is no need to install an automatic film connecting apparatus, so that the apparatus can be reduced in size and space can be saved, and the cost is reduced.

The packing and filling machine of the present invention is not limited to the above-described example, but various modifications can be made without departing from the scope of the present invention.

[0052]

As described above, according to the packaging and filling machine according to the first and second aspects of the present invention, the film can be unwound from the rear end of the preceding film and the film roll without interrupting the filling and packaging operation. It is possible to connect the leading end of the subsequent film, and therefore, it is possible to efficiently manufacture filled and packaged products, and it is not necessary to install an automatic film connecting apparatus, so that the apparatus can be downsized. It is possible to achieve an excellent effect that the space can be saved and the price is reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view of a packaging and filling machine of the present invention.

FIG. 2 is an overall side view of a conventional packaging and filling machine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 film roll 5 film feeding device 6 film feeding motor (drive device) 8 film feeding roller 11 tension applying device 14 film holding plate 27 cylindrical film (package) 38 filling material 39 filling and packaging product 41 film stock box 43 film feeding Indicator P film

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65H 23/188 B65H 23/188 BF Term (Reference) 3E050 AA06 AB04 BA01 BA03 CA01 CA07 CA08 CB01 CB07 CC01 DC02 DC05 DC08 DD04 DF01 FA01 FB07 GA06 GB02 3F064 AA01 BB02 DA01 3F105 AA01 AB07 BA02 BA27 BA31 CA02 CA15 CB01 DA04 DB19 DC01

Claims (2)

[Claims] 1. A packing material, in which a sheet-like film is formed in a tubular shape and a flat portion is formed by sandwiching a predetermined position in a longitudinal direction of the tubular portion from a radial direction of the tubular portion, is filled with an object to be filled. ,
A packaging and filling machine adapted to manufacture a filled packaging product, wherein the packaging and filling machine pulls a film wound around a film unwinding roller by driving a driving device to rotate the film unwinding roller. Feeding device for feeding the film from the film roll, and tension applying for applying tension to the film by pressing the film before being formed into a tubular shape, which is installed on the downstream side in the film feeding direction of the film feeding device, with a film pressing plate. A film stock box for stocking the film fed from the film roll in a substantially zigzag shape, between the film feeding device and the tension applying device. Packaging and filling machine. 2. A film feeding instruction plate which can be turned up and down is provided in the film stock box.
When the film feeding instruction plate is rotated to the upper limit position by feeding the stock film, a drive command is given to the driving device of the film feeding device, and the film feeding instruction plate is moved to the lower limit position by its own weight. 2. The packaging and filling machine according to claim 1, wherein a stop command can be given to said driving device when said packaging device is rotated to a maximum position.