JPH0219210A - Filling/packing apparatus equipped with packing material splicing device - Google Patents

Abstract

PURPOSE:To dispense with manual work in the splicing of a packing material by arranging a film packing material splicing device between a splitting means and a raw film while arranging a cut-off device, which cuts off the splicing part of the film packing material so as to leave the side edge part on the side opposite to the split side thereof, between the splitting means and a filling pipe. CONSTITUTION:At first, the running of a film packing material is temporarily stopped and the rear end part of one raw film is superposed on the start end part of the other raw film to splice both parts by thermal welding in a splicing device 2. Then, the parts protruding forwardly and rearwardly of said films are cut off by blade bodies 2A, 2B. The film packing material F thus integrated is sterilized in a sterilizing solution tank 5 and split while the side edges thereof are cut off during running by knives 15. When the spliced part F' reaches the position of a cut-off device 13, the running of said packing material is stopped and the spliced parts F' is punched by the cut-off device 13. At this time, the film packing material is held to a spliced state because the side edge part thereof on the side opposite to the split side thereof is not punched.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is utilized in the field of filling and packaging technology, and particularly relates to a filling and packaging device for filling a tube-shaped film packaging material with contents.

[Conventional technology]

Contents such as food are filled and packaged in a tube-shaped film packaging material. In particular, for food products, tube-shaped film packaging materials (hereinafter referred to simply as "
"Film packaging material". ) is used. This film packaging material is formed by drawing out a plastic material into a thin cylindrical bag while applying internal pressure, and then flattening the bag by bringing its inner surfaces into contact with each other, and preparing it for use by making it into a roll-like material, for example. It is something. This film packaging material is in the form of a bag that is completely sealed except for the beginning and end, so bacteria cannot enter from the outside. Then, during use, that is, during filling and packaging, the side edges of the film packaging material are incised while running, and the contents are filled from there, and the side edges are sealed immediately after the filling position, and the film packaging material is are sealed and cut in the width direction at appropriately set intervals in the longitudinal direction, and packages as products are successively obtained. In such a filling and packaging device, when one sheet of material is finished, the operation of the device is temporarily stopped, a new material is loaded, and the film packaging material is pulled out.For example, if the starting end is sealed, this is After cutting, it is placed in the device.

[Problems to be Solved by the Invention] Therefore, in the above-mentioned conventional device, a new original film wrapping material is manually guided between a series of guide rollers of the device from the starting end, and further The work required time-consuming work, such as repositioning. Several film joining methods are known for forming a general film into a tube shape using a forming plate and then filling it, but the above-mentioned film packaging, which has a tube shape from the beginning, There is no known method for joining wood. Furthermore, a filling tube cannot be inserted into a film packaging material whose starting end (and end end) are sealed. Furthermore, if the above-mentioned operation is performed after opening the sealed portion at the starting end, there is a risk that bacteria may enter the film packaging material before filling. Therefore, countermeasures were required.

In response to such a request, the present invention makes it possible to connect the film packaging material, even though the operation of the device is temporarily stopped, without having to manually guide the new film packaging material onto the guide rollers, etc. It is an object of the present invention to provide a filling and packaging material device equipped with a packaging material joining device, which is easy to use, and which only needs to be opened and cut at the starting end seal portion immediately before filling.

[Means to solve the problem]

According to the present invention, the above object is to pull out a tube-shaped film wrapping material pressed flat so that the inner surfaces are in contact with each other from the original fabric and run it, and to run the film wrapping material while the film wrapping material is running. A seal that includes an incision means for incising a side edge, allows a filling tube to face into the film packaging material from the side at an incision start position, and seals the incision part of the film packaging material at a position immediately after the filling tube. A connecting device is disposed between the cutting means and the original fabric to connect the terminal end of the film wrapping material and the starting edge of the film wrapping material of a new original fabric by welding, and This is achieved by disposing a cutting device between the means and the filling tube for cutting off the joint portion of the film wrapping material, leaving the side edge portion opposite to the incision side.

In a preferred embodiment of the present invention, a cross section perpendicular to the film packaging material is provided to separate the inner surfaces of the film that are in contact with each other at a position above the insertion position of the filling tube into the film packaging material. Advantageously, a separating means with a conical head is attached to the filling tube within the film wrapping.

More preferably, an opening expanding means is provided immediately before the separating means for sucking the trailing edge of the opening of the film opened by cutting out the connecting portion from both sides of the film to widen the opening. .

[Effect]

In the present invention as described above, when one original packaging film is used, the terminal end and the starting end of the next original packaging film are overlapped and welded by a splicing device. Connect. In this tethered state, they do not form a communicating tube, but are sealed at the tethered portion.

When such a wrapping film is brought to a cutting device, the tether is cut away and removed, leaving a side edge portion opposite to the side edge to be cut open for filling.

Next, the trailing edge of the opening of the cut portion of the film is manually corrugated, and the film is fed so that both sides of the film are positioned on both sides of the filling tube, and filling is performed.

Here, the cutting device may temporarily stop the filling of the filling and packaging device and then stop the traveling of the packaging film to perform the cutting, or may move by a set distance together with the packaging film. Good too.

Next, when a spacing means with a conical head is provided, both films are placed over the conical head when corrugating the rear edge of the opening of the cut portion. Then both films can be easily separated.

Further, when a corrugation means is provided, by detecting the leading edge and activating it at a preferable timing, the corrugation can be performed without manual intervention and without stopping the running of the packaging film.

However, it is better to reduce its running speed during that time.

〔Example〕

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a perspective view showing the general configuration of the apparatus of this embodiment.

In the figure, reference numerals 1 and LA refer to original fabrics made by flattening a tube and then winding it into a roll, and both are always placed so that after one is used, the other is used. A film wrapping material F is pulled out from one of the original rolls (original roll 1 in the figure), and its starting end is connected by heat welding to the terminal end of the film wrapping material F of the previous original roll by a connecting wire W2.

As clearly shown in FIG. 2, the connecting device 2 is formed by a pair of upper and lower heating bars.
Blades 2A and 2B are attached to the front and rear surfaces, respectively, so that the terminal and starting ends that protrude back and forth after heat welding can be cut off by the blades 2A and 2B by pulling them by hand. .

A guide roller 3.4 and a sterilizing liquid tank 5 are arranged in front of the connecting device 2. The sterilizing liquid tank 5 and various devices arranged before it, which will be described later, are provided in a so-called sterile room. A roller 6 is disposed within the sterilizing liquid tank 5, and the running direction of the film wrapping material F is changed upward. Directly above the sterilizing liquid tank 5, there is provided a member 7 whose edges come into contact with both sides of the film wrapping material to scrape off the sterilizing liquid adhering to the surface of the film wrapping material while the film wrapping material is rising. ing.

Next, guide rollers 11.12A, 12B are arranged in the raised position of the film wrapping material for changing the running direction of the film wrapping material horizontally and then downward. The film packaging material F, whose running direction has been changed downward, is conveyed by a feeding means 14 consisting of feeding rollers 14A and 14B with its both side edges being compressed and conveyed downward.

A knife 15 serving as an incision means for incising the side edge (the right edge in the figure) of the film packaging material is disposed immediately before the guide roller 12A. A cutting device 13 as shown in FIG. 3(A) is provided between the guide rollers 12A and 12B. The connecting portion F', in which the parts are connected by heat welding, is cut off leaving the side edge opposite to the position of the knife 15. In the illustrated example, the cutting device 13 cuts the upper and lower molds 13A and 13B. It is designed to punch out a U-shaped groove F''.

Immediately below the guide roller 12B, a corrugating means 30 is provided which detects the trailing edge of the U-shaped groove F# and attracts both sides of the film packaging material at the trailing edge to separate them and create a corrugation. There is.

On the other hand, in FIG. 1, the guide rollers 12A and 12B
Two piston pumps 18 and 19 are installed in the hopper 16 on the upper right side of the hopper 16 via a switching valve 17, and a filling pipe 20 extends downward so that both pumps alternately deliver a fixed amount of the contents. There is. The filling tube 20 enters the inside of the film packaging material F which is bent and cut in the horizontal direction at a position below the guide roller 12B, and has a nozzle body 21 extending vertically and opening downward at the tip. are doing.

The nozzle body 21 has a separation means 22, which is located above the entry position of the filling tube 20 into the ilm packaging material (above), and is made of a column having a conical head 22A at the top and a column 22B at the bottom. ing. In this embodiment, the separating means 22 is formed integrally with the nozzle body 21. Here, it is desirable that the diameter (dimension perpendicular to the film packaging material F) of the separation means 22, that is, the outer diameter of the base of the conical head 22A, be larger than the diameter of the filling tube 20. Further, the separation means 22 is provided with a fin-shaped guide member 22C that guides the inner edge of the film packaging material on the opposite side to the incision, and forms a part of the separation means. Note that the separating means is not limited to the one shown in the drawings, and may have a configuration in which, for example, the longitudinal section perpendicular to the surface of the film wrapping material has a conical shape and extends in the width direction of the film wrapping material. In that case, the guide member described above becomes unnecessary.

A pressure roller 23 for pinching the two cut films of the film packaging material is disposed directly below the connection portion of the filling tube 20 to the nozzle body 21, and further directly below the pressure roller 23 is arranged to pinch the two films of the cut film packaging material. At the side edge of the film, a heating element 24 that heats the film while pressing it, and a roll-shaped sealing element 25 are sequentially arranged as sealing means, and the cut film packaging material F is fed under the sealing element 25. It is designed to be sealed while being sent downward by means 14.

At a lower position of the nozzle body 21, there is a laterally long ironing roller 26 that intermittently presses the film packaging material filled with contents from both sides to form a strained portion where no contents are present.
are arranged. Immediately below the ironing roller 26, there is a roller for sealing the ironing portion in the width (horizontal) direction by pressing the film wrapping material while descending at the same speed as the feeding speed of the film wrapping material in synchronization with the ironing roller 26. A known seal unit 27 that reciprocates up and down is arranged. In this embodiment, two adjacent linear seal portions are formed. Further, below the seal unit 27, in synchronization therewith, a known separation unit 28 having a blade 28^ for cutting between the two adjacent linear seal portions is disposed.

Note that 29 is a chute for transporting the separated products one by one to a predetermined position.

Next, the operation of the apparatus of this embodiment as described above will be explained.

First, the running of the film packaging material is temporarily stopped, and the end and start ends of the two original fabrics are joined by heat welding in the joining device 2 in an overlapping state as shown in FIG. 2.

In the case of this embodiment, the portions that protrude forward and backward are cut off by the blades 2A and 2B.

The film wrapping material F, which has been spliced into one piece in this way, passes through guide rollers 3 and 4, and is sterilized in a sterilizing liquid tank 5 while changing its traveling direction upward by a roller 6.

The member 7 scrapes off the sterilizing liquid adhering to the film packaging material F as it travels upward.

After that, the film wrapping material F is moved to the guide roller 11゜12A.
, 12B, the feeding means 14 (feeding rollers 14A and 1
4B). At this time, as shown in FIG. 3(A), the side edges of the film wrapping material F are cut off and incised while the film is running by the knife 15 located just in front of the guide roller 12A. Note that the long ear-like piece F2 that has been cut out is picked up by a roller (not shown) or the like and disposed of.

Thereafter, the film packaging material passes through the guide roller 12A, and then stops traveling when the joint portion F' reaches the position of the cutting device 13, and the portion F' is punched out by the cutting device 13 (Fig. 3). (A)). At this time, the film wrapping material remains connected because the side edge opposite to the incision side is not punched out. Next, when the rear edge of the opening of the U-shaped groove F" formed by punching reaches the head 22A of the nozzle body, the film packaging material stops traveling again, and the rear edge of the opening is cut by the corrugation means 30. After the films on both sides are separated, they are undulated.Then, as shown in FIG. 3(B), the wavy portion is positioned so as to cover the head 22A, and the film wrapping material starts running again. .

Note that when the cutting device detects the joint portion with a sensor and punches out while moving at the same speed as the film wrapping material, the film wrapping material does not stop running. Furthermore, when the corrugating means 30 is corrugated in time with the detection of the trailing edge of the opening, the film packaging material does not stop running. However, in these cases, it is desirable that the film packaging material travel at a slower speed than during normal operation.

Thus, in the film packaging material, the two films that are brought into close contact with each other are separated by the conical head 22A.

At this time, since the maximum diameter of the head 22A (which is also the diameter of the columnar part 22B) is larger than the diameter of the filling tube 20, the incision on the right side edge of the film packaging material is sufficiently opened.
Does not receive any undesirable force from 0. As the two films travel, the distance between them is gradually transmitted in the width direction by the head 228. The side opposite to the incision, that is, the left side edge is a fin-shaped guide member 22C.
The film packaging material is fed without being skewed. Since the two films are spaced symmetrically in the width direction and the distance gradually widens, wrinkles and the like do not occur.

The cut portion of the film packaging material F is the nozzle body 2 of the filling tube 20.
Immediately below the connecting portion to 1, it is pinched by a pinching roller 23, then heated by a heating element 24, and then sealed by a sealing body 25 to form a tube shape again.

On the other hand, the raw material contained in the hopper is intermittently fed into the filling pipe 20 via the switching valve 17 from piston pumps 18 and 19 that operate alternately, and is again fed into the film packaging material F which has become tube-shaped. The contents are filled from the lower opening of the nozzle body 21.

Thereafter, a locally squeezed portion is formed by the film packaging material filled with the contents by the strainer roller 26, and this portion is then sealed by the sealing unit 27.
The products are separated by a separation unit and fall into a chute 29 as individual products.

Next, another embodiment of the present invention will be described based on FIG.

In the previous embodiment, the cutting device for removing the joint was a punch, but in this embodiment it is a knife. In FIG. 4, a knife 15 serving as an incision means also serves as a cutting device. When the knife 15 that cuts the side edges receives a command from a sensor (not shown) and reciprocates once in the width direction of the film packaging material as shown by the arrow in the same figure, the joint portion is gouged out as shown in the figure. It will be taken.

At this time, if the knife holder (not shown) is rotatable around its axis, the resistance will be minimized when the knife moves diagonally relative to the film packaging material, and the knife will be cut at a minimum value.
Note that the traveling speed of the film packaging material in the cutting process using the knife 15 is appropriately determined in conjunction with the length of the cut portion.

〔Effect of the invention〕

As described above, the present invention is an apparatus for incising and filling the side edges of a tube-shaped film packaging material.
Since the connecting part is cut leaving the side edge opposite to the above side edge, even if one roll is finished, the film wrapping material for the next roll will be in the same position as the previous film wrapping material. It is pulled out to the point where it is automatically set, and the effect is that there is no need to pass it through the guide rollers again or reposition it as in the past.

In this case, if the nozzle body is provided with a conical head, it becomes extremely easy to pass the nozzle body through the tube. Furthermore,
If the wave means is used, the above-mentioned operations can be automated, which is an advantage.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention, FIG. 2 is an enlarged perspective view showing the connecting device of the device shown in FIG. 1, and FIG. 3(A) is a perspective view of the cutting device of the device shown in FIG. FIG. 3(B) is a perspective view showing the periphery enlarged, FIG. FIG. 3 is a perspective view of the example device in which the cutting means is a knife. 2・・・・・・・・・・・・Connecting device 13...
......... Cutting device 15...
......Incision means (knife) 20...
・・・・・・・・・・Filling tube 22・・・・・・・・・・
...Separation means 22A...Head

Claims (3)

[Claims] (1) A tube-shaped film wrapping material pressed flat so that the inner surfaces are in contact with each other is pulled out from the original fabric and made to run, and the side edges of the film wrapping material are incised while the film wrapping material is running. An incision means is provided, a filling tube is made to face into the film wrapping material from the side at an incision start position, and a sealing means is provided for sealing the incision part of the film wrapping material at a position immediately after the filling tube, A connecting device for connecting the end of the film wrapping material and the starting end of the film wrapping material of a new original fabric by welding is arranged between the cutting means and the original fabric, and the connecting device is arranged between the cutting means and the filling tube. A filling packaging device equipped with a packaging material joining device, characterized in that a cutting device is disposed at a position between the film packaging materials to cut off the joining portion of the film packaging material, leaving the side edge portion opposite to the incision side. (2) A conical head with a vertical section perpendicular to the film packaging material for separating the inner surfaces of the film that are in contact with each other at a position above the insertion position of the filling tube into the film packaging material. A filling and packaging apparatus equipped with a packaging material joining device according to claim 1, wherein the separating means having a section is attached to the filling tube within the film packaging material. (3) An opening expanding means is provided immediately before the separating means for sucking the trailing edge of the opening of the film opened by cutting out the connecting portion from both sides of the film to widen the opening. A filling packaging device equipped with the packaging material joining device described in .