JP2612835B2 - Filling and packaging equipment with packaging material splicing equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention is used in the field of filling and packaging technology, and particularly relates to a filling and packaging apparatus for filling a tubular film packaging material with contents.

[Conventional technology]

Contents such as food are filled and packaged in a tubular film packaging material. In particular, in the case of food, a tubular film packaging material (hereinafter simply referred to as “film packaging material”) is used as a packaging material in order to package the food in an aseptic condition. This film packaging material is formed by drawing out a plastic material as a thin cylindrical bag while applying internal pressure, and then flattening the inner surfaces thereof by contacting each other and preparing it for use in, for example, a roll-shaped raw material. Things. Since the film packaging material is completely sealed in a bag shape except for the beginning and end, no bacteria enter from the outside. At the time of use, i.e., at the time of filling and packaging, the side edges of the film packaging material are cut off during running, the contents are filled from there, and the side edges are sealed immediately after the filling position, and the film is also refilled. Are sealed and cut in the width direction at appropriately set intervals in the longitudinal direction, so that packages as products are obtained one after another. Such,
In the filling and packaging apparatus, when one sheet is completed, the operation of the apparatus is temporarily stopped, a new sheet is filled, and the film packaging material is drawn out from the apparatus.For example, if the starting end is sealed, this is cut. And then set it on the device.

[Problems to be solved by the invention]

Therefore, in the above-mentioned conventional apparatus, a new raw film packaging material is manually guided again from the start end between a series of guide rollers of the apparatus, and the position in the width direction is re-positioned. Work was taking place. There are several known film connecting methods for filling a general single film while forming it into a tube using a forming plate. There is no known connection method for wood. Furthermore, the filling tube cannot be inserted in the film packaging material in which the start end (and the end) is sealed. In addition, if the above operation is performed after opening and closing the seal portion at the start end, there is a possibility that bacteria may enter the film packaging material before filling. Therefore, a countermeasure was required.

According to the present invention, in response to such a request, although the operation of the apparatus is temporarily stopped, it is not necessary to manually re-guide the film wrapping material of the new raw material to the guide rollers and the like by enabling the connection of the film wrapping material, It is another object of the present invention to provide a filling and packaging device provided with a packaging material connecting device in which a start end seal portion may be cut out and opened just before filling.

[Means for solving the problem]

According to the present invention, the object is to draw a tubular film packaging material which is flatly pressed so that an inner surface thereof comes into contact with a raw material and run the film packaging material. A seal is provided for providing an incision means for incising a side edge portion, in which a filling tube faces the inside of the film packaging material from the side at the incision start position, and a cut portion of the film packaging material is sealed at a position immediately after the filling tube. Means for connecting the end portion of the film packaging material and the starting end of the new film packaging material at a position between the incising means and the web by welding. And a cutting device for cutting a joint portion of the film wrapping material at a position between the cutting means and the filling tube while leaving a side edge portion opposite to the cutting side. Between the connecting device and the cutting device. It has been is set to allowed to operate The sections winder based on joint detection signals by the sensor, is accomplished by.

As a preferred embodiment of the present invention, a cross section perpendicular to the film packaging material for separating the inner surfaces of the films in contact with the film packaging material at a position above the insertion position of the filling tube into the film packaging material is provided. A separating means having a conical head may be attached to the filling tube within the film wrapping material.

More preferably, the opening means for adsorbing the opening rear edge of the film opened by cutting the joint portion from both sides of the film and expanding the opening is preferably provided immediately before the separating means. .

[Action]

In the present invention as described above, when the end of one packaging material film is completely used and the starting end of the next packaging material film are overlapped, welding of the splicing device is performed. The members are welded together over the entire width of the film.
In the connecting state, the connecting tube is not formed, but is sealed at the connecting portion.

In such a packaging film, when the above-mentioned connecting portion is detected by a sensor, for example, an optical sensor during traveling, and is supplied to the cutting device, the above-mentioned connecting portion is left with a side edge portion opposite to a side edge portion to be cut out for filling. The joint is cut off and removed.

Next, the opening trailing edge of the cut-out portion of the film is manually widened, and the film is fed on both sides of the filling tube so that the film is fed and the film is fed.

Here, after the cutting device temporarily stops filling of the filling and packaging device, the traveling of the film packaging material may also be stopped to perform the cutting, or the cutting device may be moved along with the film packaging material by a set distance to perform the cutting. Is also good. The filling and the temporary stop of the film are performed at a predetermined time based on the signal of the sensor.

Next, when the separation means having a conical head is provided, when the rear edge of the opening of the cut portion is widened, the side edge portion left by the cut removal is communicated with the process. If both films are put on the conical head, the two films can be easily separated from each other.

Further, when the mouth opening means is provided, if the trailing edge is detected and operated at a preferable timing, the side edge portion left by cutting and removing is used as a guide tape for communicating the process, and the mouth opening is performed. This is performed without manual operation and without stopping the running of the film packaging material.

 However, the running speed should be reduced during that time.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

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

In the drawing, reference numerals 1 and 1A denote a raw material obtained by flattening a tube-shaped material and winding it in a roll shape, and both are always disposed so that one can be used and the other can be used. A film wrapping material F is drawn out from one of the webs (the web 1 in the drawing), and the starting end thereof is connected to the terminal end of the film wrapping material F of the previous web by thermal welding by the connection device 2.

As shown in FIG. 2, the connecting device 2 is formed by a pair of upper and lower heating bars, and has blades 2A and 2B attached to the front and rear surfaces, respectively. By pulling out the protruding end and start ends by hand, the blade bodies 2A and 2B can cut off the protruding end and start ends.

Guide rollers 3 and 4 and a germicidal solution tank 5 are arranged on the connecting device 2 and the other side. The germicidal solution tank 5 and various devices to be described later provided therefrom are provided in a so-called sterile room. A roll 6 is provided in the sterilizing liquid tank 5 so that the running direction of the film packaging material F is changed upward. Immediately above the sterilizing solution tank 5, a member 7 is provided for scraping the sterilizing solution adhering to the surface of the film packaging material while the film packaging material is being lifted, the edges being in contact with both surfaces of the film packaging material. ing.

Next, guide rollers 11A, 12A and 12B for changing the running direction of the film packaging material in the horizontal direction and then downward are provided at the raised position of the film packaging material. The film packaging material F whose traveling direction has been changed downwards is
Both side edges are squeezed and conveyed by the feeding means 14 composed of A and 14B and run downward.

Immediately before the guide roller 12A, a knife 15 is provided as a cutting means for cutting a side edge (right edge in the figure) of the film packaging material. Between the guide rollers 12A and 12B, a cutting device 13 such as is often seen in FIG.
Is provided. The cut-off device 13 cuts off a joint portion F 'where the end portions and the start ends of the two film sheets are connected by heat welding, leaving the position of the knife 15 and the side edge on the opposite side of the body. I have. In the illustrated example, the cutting device
13 is punched into a U-shaped groove F "by upper and lower dies 13A and 13B. The cutting device 13 is provided with a sensor (not shown) disposed in front of the cutting device 13 in the film running direction. )
It operates at a predetermined time based on the connection portion detection signal.

Immediately below the guide roller 12B, there is provided an opening means 30 for detecting the leading edge of the U-shaped groove F ", adsorbing the both sides of the film packaging material at the trailing edge thereof, and separating and opening the film. I have.

On the other hand, in FIG. 1, two piston pumps 18 and 19 are disposed on the hopper 16 via a switching valve 17 at the upper right side of the guide rollers 12A and 12B. The filling tube 20 extends downward so as to send out. The filling tube 20 is inserted into the inside of the film packaging material F which is bent and cut in the lateral direction at a position below the guide roller 12B, and has a nozzle body 21 which extends vertically and opens downward at the tip. doing. The nozzle body 21 has a separating means 22 formed of a column having a conical head 22A at the top and a column 22B at the bottom at a position above the position where the filling tube 20 enters the film packaging material. I have. In the present embodiment, the separating means 22
Is formed integrally with the nozzle body 21. Here, the separating means 22 preferably has a diameter (dimension in a direction perpendicular to the film packaging material F), that is, an outer diameter of the base of the conical head 22A larger than a diameter of the filling tube 20. Further, the separating means 22 has a fin-shaped guide member 22C for guiding the inner edge of the film packaging material on the side opposite to the incision portion.
Are provided and form a part of the separating means. The separating / separating means is not limited to the illustrated one. For example, a vertical section perpendicular to the surface of the film packaging material may be formed in a conical shape and extend in the width direction of the film packaging material. In that case, the guide member becomes unnecessary.

Immediately below the connection portion of the filling tube 20 to the nozzle body 21, a pressing roll 23 for pressing the two films of the cut film packaging material is disposed, and further immediately below the pressing roll 23, At the side edge of the film, a heating body 24 for heating the film while pressing the film, and a roll-shaped seal body 25 are sequentially arranged as sealing means, and the cut film packaging material F is fed under the seal body 25. It is adapted to be sealed while being sent downward by means 14.

At the lower position of the nozzle body 21, an ironing roll 26, which is long in the lateral direction, is formed which intermittently presses the film packaging material filled with the contents from both sides to form an ironing portion where no contents exist. Immediately below that, in synchronization with the ironing roll 26, the film is pressed at the same speed as the feed speed of the film packaging material to press the film packaging material and seal the ironed portion in the width (lateral) direction. A known seal unit 27 that reciprocates up and down is provided. In this embodiment, two adjacent linear seal portions are formed. Further, below the seal unit 27, a known separating unit 28 having a blade body 28A that cuts between the two linear seal portions close to each other is disposed in synchronization with the seal unit 27.

Reference numeral 29 denotes a chute for transporting the separated products one by one to a predetermined position.

Next, the operation of the present embodiment will be described as described above.

First, the running of the film packaging material is temporarily stopped, and the end portions and the start ends of the two webs are connected by heat welding in the connecting device 2 in a state of being overlapped as shown in FIG. Then, in the case of the present embodiment, the portion that protrudes back and forth is cut off by the blade bodies 2A and 2B.

The film packaging material F thus joined and integrated is passed through the guide rollers 3 and 4 and is sterilized in the sterilizing liquid tank 5 while changing its running direction upward by the roll 6.
The sterilizing liquid adhered to the film packaging material F traveling upward is scraped off by the member 7.

After that, the film packaging material F is guided by the guide rollers 11, 12A, 12B.
Is sent downward by the feeding means 14 (feeding rolls 14A and 14B). At this time, as shown in FIG. 3 (A), the side edge of the film packaging material F is cut off by the knife 15 immediately before the guide roller 12A while the film packaging material F is running. The cut long ear-shaped pieces _FZ are picked up by a roll or the like (not shown) and disposed.

Thereafter, the film wrapping material passes through the guide roller 12A, and when the connecting portion F 'comes to the position of the cutting device 13, the running thereof is stopped based on a film connecting portion detection signal of a sensor (not shown). The part F 'is punched out by the cutting device 13 (FIG. 3A). At that time, the film packaging material remains connected because the side edge portion opposite to the incision side is not punched. Therefore, the remaining side edge portion functions as a guide tape for pulling down the trailing side from the joint portion of the film packaging material, and the process of guiding the film packaging material to the guide roller again is interrupted. Next, when the film trailing 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 pulled downward is temporarily stopped again, and after the opening, The edge is opened after the film on both sides is separated by the opening means 30. Then, the film is slowly fed manually or automatically, and the expanded portion is moved to the head as shown in FIG. The film packaging material is positioned so as to cover the portion 22A, and starts running again at a predetermined speed.

When the cutting device detects a spliced portion with a sensor and punches out while moving at the same speed as the film packaging material, the film packaging material does not stop running. Also, when the mouth opening means 30 opens the mouth in a timely manner by detecting the trailing edge of the opening, the film packaging material does not stop running. However, in these cases, it is desirable that the traveling speed of the film packaging material is lower than that of the normal operation.

Thus, in the film packaging material, the two adhered films are separated by the conical head 22A. At that time, the head
The maximum diameter of 22A (also the diameter of the column 22B) is
Because of the larger diameter, the cutout on the right edge of the film wrapping material is sufficiently open so that it does not receive any undesired force from the filling tube 20. Then, the separation of the two films is gradually transmitted in the width direction by the head 22A as the vehicle runs. Then, the side opposite to the incised portion, that is, the left side edge is guided by the fin-shaped guide member 22C, and the film packaging material is fed without skew. Since the separation between the two films is symmetric in the width direction and the distance is gradually increased, no wrinkles or the like are generated.

The incised portion of the film packaging material F is
Immediately below the connection portion, the tube is sandwiched by the sandwiching rolls 23, and then heated again by the heating body 24 and then again formed into a tube which is sealed by the seal body 25.

On the other hand, in the filling tube 20, the raw material as the content in the hopper is supplied from alternately operated piston pumps 18, 19 to the switching valve 17.
The above-mentioned contents are filled from the lower opening of the nozzle body 21 into the film packaging material F which has been intermittently fed through the tube and has become a tubular shape again.

Thereafter, the film wrapping material filled with the contents is locally formed with an ironing roll 26 by an ironing roll 26, and the portion is then sealed by a sealing unit 27.
The products are separated by the separating unit and fall into the chute 29 as individual products.

Next, another embodiment of the present invention will be described with reference to FIG.

In the previous embodiment, the cutting device for removing the joint portion was made by punching, but in this embodiment, it was made by a knife. In FIG. 4, a knife 15 as a cutting means also functions as a cutting device. The knife 15 whose side edge is incised makes a reciprocation in the width direction of the film packaging material as indicated by an arrow in FIG. It will be.
At this time, if the knife holder (not shown) is rotatable around its axis, the resistance of the knife film packaging material becomes a minimum value when the knife is skewed, so that the knife is not cut. . The running speed of the film packaging material in the cutting step by the knife 15 is appropriately determined in combination with the length of the cut portion.

〔The invention's effect〕

As described above, the present invention relates to an apparatus for cutting and filling a side edge of a tubular film packaging material, wherein the end portions and the starting end portions of the two original film packaging materials are overlapped and welded together, and then the above side Since the joint is cut off leaving the side edge opposite to the edge, even if one sheet is completed, the film sheet of the next sheet is pulled out to the predetermined position by the previous sheet. Automatically set, and the effect of eliminating the trouble of re-passing between the guide rollers and correcting the position as in the related art is obtained.

At this time, if a conical head is provided on the nozzle body, the operation of passing the nozzle body through the tube becomes extremely easy. Furthermore, if the opening means is used, the above-mentioned various operations can be automated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an apparatus according to one embodiment of the present invention, FIG. 2 is an enlarged perspective view showing a connecting device of the apparatus shown in FIG. 1, and FIG. FIG. 3 (B) is a perspective view showing a state in which the cut-out portion reaches the head of the nozzle body in the apparatus of FIG. 1, and FIG. 4 (B) is another perspective view of the present invention. It is a perspective view in case an incision means is a knife in an Example apparatus. 2 ... connecting device 13 ... cutting device 15 ... cutting means (knife) 20 ... filling tube 22 ... separating means 22A ... head 24,25 ... sealing means (24 ... heating body, 25 ...) (Seal body) 30… Opening means F… Film packaging material

Claims (3)

(57) [Claims] 1. A tubular film packaging material which is pressed flat so that its inner surface is in contact with the raw material is pulled out of the raw material and allowed to run, and the side edges of the film packaging material are moved while the film packaging material is running. A cutting means provided with a cutting means for incising, a filling tube facing the inside of the film packaging material from the side at the incision start position, and a sealing means for sealing a cut portion of the film packaging material at a position immediately after the filling tube; A welding member over the entire width of the film packaging material for connecting the end of the film packaging material and the start end of the new film packaging material by welding at a position between the incision means and the web. A cutting device that cuts a joint portion of the film packaging material at a position between the incising means and the filling tube while leaving a side edge portion opposite to the incision side; Sensor arranged between the device and the cutting device Filling and packaging apparatus provided with connecting detection signal to be set to allowed to operate The sections winding devices based, the packaging material connecting device, characterized in that with. 2. A vertical cross section perpendicular to the film packaging material for separating the inner surfaces of the film in contact with the film packaging material at a position above the position where the filling tube is inserted into the film packaging material. A filling and packaging apparatus provided with a packaging material connecting device according to claim 1, wherein said separating means having a head is attached to the filling tube in the film packaging material. 3. An opening means which is provided immediately before the separating means so as to adsorb the trailing edge of the opening of the film which has been opened by cutting the connecting portion from both sides of the film and open the opening. A filling and packaging apparatus provided with the packaging material connection apparatus according to 2).