JP2013177193A - Automatic filling/packaging machine - Google Patents

Abstract

An object of the present invention is to provide a suitable tension on the surface of a packaging film that is filled with a raw material and is subjected to a first horizontal seal to form a bag shape.
A vertical seal device seals edges along a flow direction of a packaging film to be conveyed to form a vertical seal portion to be substantially cylindrical. A 1st horizontal seal apparatus seals the width direction of the packaging film used as the substantially cylinder shape, forms a 1st horizontal seal part, and makes it a bag shape. The filling device fills the packaging film with the contents when the bag is formed into a bag by the first horizontal sealing device. The second horizontal sealing device forms a second horizontal seal portion by performing sealing in a region including the content accommodation portion in the bag-shaped packaging film filled with the content. The ratio of the content in the accommodation part of the content is increased by the second horizontal seal portion.
[Selection] Figure 1

Description

  The present technology relates to an automatic filling and packaging machine, and more particularly, to an automatic filling and packaging machine that fills a packaging film with contents.

  In a conventional automatic filling and packaging machine, a technique for tensioning a packaging bag is known by performing lateral sealing while applying external pressure to a substantially cylindrical packaging film with a shutter that opens and closes before sealing the lateral seal. Yes. For example, a filling and packaging machine has been proposed in which a solid filling (such as raw oysters) and sealed water is added and then the shutter is closed and the squeeze roller is reversed to cause tension in the cylindrical film due to the contents. (For example, refer to Patent Document 1).

JP-A-10-095401

  In the above-described prior art, the tubular film is fed downward while being squeezed by a squeeze roller, and then is fed backward with the shutter closed, whereby tension can be generated in the tubular film.

  However, in the above-described prior art, since the cylindrical film is conveyed while the shutter is in contact, there is a risk that the surface of the cylindrical film is damaged and the aesthetic appearance of the product is impaired. If the tubular film ruptures due to such scratches, there is a risk of adversely affecting the continuation of production. Moreover, in the above-mentioned prior art, it is necessary to add a process for the reverse feeding of the tubular film, and there is a problem that the process cost of the production line increases.

  The present technology has been created in view of such circumstances, and has an object to provide a suitable tension on the surface of the packaging film that is filled with the raw material and is subjected to the first horizontal seal to form a bag shape. And

  The present technology has been made to solve the above-mentioned problems, and the first side surface of the present technology forms a vertical seal portion by sealing edges along the flow direction of the transported packaging film. A vertical sealing device that has a substantially cylindrical shape, a first horizontal sealing device that seals the width direction of the substantially cylindrical packaging film to form a first horizontal sealing portion to form a bag, and the first Sealing is performed in a region including a filling device that fills the packaging film with the contents when the bag is formed into a bag by a horizontal sealing device, and a content storage portion in the bag-shaped packaging film filled with the contents. An automatic filling and packaging machine comprising: a second horizontal sealing device that forms a second horizontal seal portion. Thereby, the ratio of the content in the accommodating part of the content of a packaging film is increased, and the effect | action of having a suitable tension | tensile_strength on the surface of a packaging film is brought about.

  In the first aspect, the second horizontal seal device may form a wider second horizontal seal portion including the first horizontal seal portion. This brings about the effect | action of giving suitable tension | tensile_strength on the surface of a packaging film, without providing another seal part in the position isolate | separated from the 1st horizontal seal part.

  In the first aspect, the second lateral seal device may form the second lateral seal portion that does not include the first lateral seal portion. Thereby, the 2nd horizontal seal part is provided in the position separated from the 1st horizontal seal part, and the effect of giving suitable tension to the surface of a packaging film is brought about.

  In the first aspect, the filled content may include a fluid. Thereby, the effect | action of making the tension | tensile_strength of the surface of a packaging film suitable at the time of increasing the ratio of the content in the accommodating part of the content of a packaging film is brought about.

  According to the present technology, it is possible to achieve an excellent effect that a suitable tension can be given to the surface of the packaging film which is filled with the raw material and is subjected to the first horizontal seal to form a bag shape.

It is a figure which shows the example of an external appearance structure of the automatic filling packaging machine 1 in embodiment of this invention. It is a figure which shows an example of the side view of the 1st horizontal sealing apparatus 7 and the 2nd horizontal sealing apparatus 8 in the 1st Embodiment of this invention. It is a figure which shows the example of a shape of the packaging bag formed in the 1st Embodiment of this invention. It is a figure which shows an example of the front view of the 1st horizontal sealing apparatus 7 and the 2nd horizontal sealing apparatus 80 in the 2nd Embodiment of this invention. It is a figure which shows the example of a shape of the packaging bag formed in the 2nd Embodiment of this invention. It is a figure which shows the example of an external appearance structure of the automatic filling packaging machine 1 in the modification of embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing an external configuration example of an automatic filling and packaging machine 1 according to an embodiment of the present invention. A packaging material shaft is provided on the front right side of the automatic filling and packaging machine 1, and an original film FH around which a packaging film is wound is detachably held on the packaging material shaft. The packaging film wound around the original film FH is supplied to the folding guide 4 through a tension indicated by a circle in the drawing.

  In the upper part of the automatic filling and packaging machine 1, a folding guide 4 for folding the supplied packaging film in half in the longitudinal direction and a filling nozzle 5 for filling the raw material in the folded packaging film are arranged.

  Further, a vertical sealing device 6, a first horizontal sealing device 7, a second horizontal sealing device 8, and a cutter device 9 are provided on the front surface of the automatic filling and packaging machine 1 from the upper side. Furthermore, a control device 10 that controls the operation of each part of the automatic filling and packaging machine 1 is provided on the lower right side of the automatic filling and packaging machine 1.

  The tension 2 is a tension driven by a motor, and performs an operation of pulling out an appropriate amount of packaging film from the raw film FH. The packaging film is passed over the final tension 3 and sent toward the folding guide 4 directly below.

  The folding guide 4 folds the supplied packaging film in the longitudinal direction. The filling nozzle 5 is a nozzle for filling the raw material into the packaging film FX folded in half by the folding guide 4. The folded packaging film FX is sent to the vertical sealing device 6 while sandwiching the filling nozzle 5.

  The filling nozzle 5 feeds the raw material from the upper part of the vertical sealing device 6. The tip of the filling nozzle 5 is located between the vertical sealing device 6 and the first horizontal sealing device 7, and the raw material is filled in the region where the vertical sealing and the first horizontal sealing are performed. The raw material (contents) filled by the filling nozzle 5 is assumed to contain at least a liquid fluid at the time of filling.

  The vertical sealing device 6 seals the edges along the flow direction (vertical direction) of the packaging film FX folded in two by the folding guide 4 to form a vertical seal portion. As the seal by the vertical sealing device 6, for example, heat sealing by applying heat is assumed. By the sealing by the vertical sealing device 6, the packaging film FX folded in half becomes substantially cylindrical.

  The first horizontal sealing device 7 seals the width direction (lateral direction) of the packaging film FX that is substantially cylindrical to form a first horizontal sealing portion. As the sealing by the first horizontal sealing device 7, for example, heat sealing by applying heat is assumed. By the first horizontal sealing by the first horizontal sealing device 7, the packaging film once becomes a bottomed cylindrical shape, and after it is filled with the raw material, it becomes a bag shape.

  The second horizontal seal device 8 forms a second horizontal seal portion by sealing in a region including the content accommodation portion in the bag-shaped packaging film filled with the content. As the sealing by the second horizontal sealing device 8, for example, heat sealing by applying heat is assumed. By the second horizontal seal by the second horizontal seal device 8, the volume of the region including the content accommodation portion is reduced, and the content ratio is increased. Thereby, an appropriate tension can be given in the region including the content accommodation portion.

  The cutter device 9 performs perforation processing or cutting processing on the central portion of the first horizontal seal portion to form individual packaging bags.

  FIG. 2 is a diagram showing an example of a lateral view of the first horizontal sealing device 7 and the second horizontal sealing device 8 in the first embodiment of the present invention. In the figure, the direction from the top to the bottom is the flow direction of the packaging bag.

  The 1st horizontal sealing apparatus 7 consists of a pair of seal roll which pinches | interposes the packaging film FX used as the substantially cylindrical shape. Each of the pair of seal rolls is provided with a heat seal blade at a position corresponding to each other, and heat is applied while pressing the packaging film FX to form a bag-shaped packaging film 11. To do. A cartridge heater or the like is provided in the shaft of the seal roll, and is set to a temperature necessary for heat-sealing the sandwiched packaging film FX. When the pressing length in the rotation direction of the heat seal blade in the first horizontal sealing device 7 is H1, the heat seal length in the flow direction in the packaging film 11 is also H1.

The second horizontal sealing device 8 is composed of a pair of sealing rolls sandwiching a bag-like packaging film 11. Each of the pair of seal rolls is provided with a heat seal blade at a position corresponding to each other, and heat is applied to the packaging film 11 while being pressed against the packaging film 11 to form the packaging film 21. A cartridge heater or the like is provided in the shaft of the seal roll, and the temperature is set to a temperature required for heat sealing the sandwiched packaging film 11. The position of heat sealing by the second horizontal sealing device 8 can be adjusted up and down in the flow direction of the packaging film by the control device 10. That is, the timing at which the second horizontal seal device 8 applies the second horizontal seal is variable. And the degree of expansion can be adjusted by making the timing for applying the second horizontal seal variable in this way. In the second horizontal sealing device 8, the pressing length in the rotation direction of the heat seal blade is H2, the heat seal length after the second horizontal seal is H3, and the length of the overlapping portion of the first horizontal seal and the second horizontal seal is H12. Then, the following equation is obtained.
H1 + H2-H12 = H3
Here, when H1 <H2, the relationship of H12 ≦ H1 and H2 ≦ H3 is established. In particular, when the range of the second horizontal seal completely includes the range of the first horizontal seal, the relationship of H12 = H1 and H2 = H3 is established.

  Here, in the first embodiment, the heat sealing area by the second horizontal sealing device 8 is set to include the heat sealing area by the first horizontal sealing device 7. That is, the heat seal length H2 in the second horizontal sealing device 8 is set to be longer than the heat seal length H1 in the first horizontal sealing device 7. Thereby, the volume of the packaging film 21 becomes smaller than the volume of the packaging film 11. Since there is no change in the contents filled in the packaging film 11 and the packaging film 21, the ratio of the contents increases as a result, and the surface of the packaging film 21 can have a suitable tension.

  FIG. 3 is a diagram showing a shape example of the packaging bag formed in the first embodiment of the present invention. FIGS. 7A and 7B show the packaging film 11 that has been heat-sealed by the first horizontal sealing device 7, and FIGS. 10C and 10D show heat-sealing by the second horizontal sealing device 8. FIG. The packaging film 21 made is shown.

  In the packaging film 11, the first horizontal seal portion 14 is formed after the vertical seal portion 13 is formed. At this time, the length of the packaging bag of the packaging film 11 is L1, the length of the accommodating portion 12 in the packaging bag is N1, the volume is C1, and the actual filling amount is V1.

  On the other hand, a second horizontal seal portion 24 is formed on the packaging film 21 so as to include the first horizontal seal portion 14. At this time, the length of the accommodating portion 22 in the packaging bag of the packaging film 21 is N2, and the volume is C2. The length of the packaging bag is L1 as in the case of the packaging film 11, and the actual filling amount is V1 as in the case of the packaging film 11.

That is, in the first embodiment, after the bag shape is formed and the filling amount V1 is filled, the second horizontal seal having the heat seal length H2 longer than the first horizontal seal having the heat seal length H1 is applied. As a result, the length of the storage portion of the packaging bag is reduced from N1 to N2. Thereby, the raw material accommodation volume of a packaging bag decreases from C1 to C2, and the ratio of the raw material filling amount with respect to the raw material accommodation capacity increases as follows.
V1 / C2> V1 / C1

  As described above, according to the first embodiment of the present invention, by forming the wider second horizontal seal portion 24 including the first horizontal seal portion 14, the ratio of the content in the content storage portion. The surface of the packaging bag can be stretched. Further, by forming the second horizontal seal portion 24 so as to overlap the first horizontal seal portion 14, a stronger seal can be provided.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Since the entire configuration of the automatic filling and packaging machine 1 of the second embodiment is the same as that of the first embodiment described above, description thereof is omitted here. The second embodiment differs from the first embodiment in the shape of the heat seal blade and the timing of pressing in the second horizontal sealing device.

  FIG. 4 is a diagram illustrating an example of a front view of the first horizontal sealing device 7 and the second horizontal sealing device 80 according to the second embodiment of the present invention. In the figure, the direction from the top to the bottom is the flow direction of the packaging bag.

  As in the first embodiment, the first horizontal sealing device 7 according to the second embodiment has a width direction (lateral direction) of the packaging film FX in which the vertical seal portion 33 is formed to be substantially cylindrical. Seal to form a first transverse seal. The first horizontal sealing device 7 is composed of a pair of sealing rolls that sandwich a packaging film FX that is substantially cylindrical. Each of the pair of seal rolls is provided with a heat seal blade 71 at a position corresponding to each other, and the first horizontal seal portion 34 is formed by applying heat while pressing against the packaging film FX. The packaging film 31 becomes. A cartridge heater or the like is provided inside the shaft 72 of the seal roll, and is set to a temperature necessary for heat-sealing the sandwiched packaging film FX. By the first horizontal sealing by the first horizontal sealing device 7, the packaging film once becomes a bottomed cylindrical shape, and after it is filled with the raw material, it becomes a bag shape.

  The second horizontal seal device 80 according to the second embodiment forms a second horizontal seal portion by sealing in a region including the content accommodation portion in the bag-shaped packaging film filled with the content. Although the heat seal area by the second horizontal sealing device 8 in the first embodiment is set so as to include the heat seal area by the first horizontal sealing device 7, the second horizontal seal in the second embodiment. The heat sealing area of the device 80 is set so as not to include the heat sealing area by the first horizontal sealing device 7. Therefore, the raw material container is in communication with the top and bottom of the second horizontal seal portion. That is, the second horizontal seal portion is provided at a position separated from the first horizontal seal portion. Therefore, the heat seal blade 81 provided at a position corresponding to each of the pair of seal rolls in the second horizontal seal device 80 is more in the width direction of the packaging film than the heat seal blade 71 of the first horizontal seal device 7. It is set short in (horizontal direction).

  In addition, the timing is controlled so that the heat sealing area by the second horizontal sealing device 80 does not include the heat sealing area by the first horizontal sealing device 7. That is, the second horizontal seal portion 45 is formed by applying heat while pressing against the packaging film 31 so as not to overlap the first horizontal seal portion 34.

  FIG. 5 is a diagram showing an example of the shape of the packaging bag formed in the second embodiment of the present invention. FIGS. 7A and 7B show the packaging film 31 that has been heat-sealed by the first horizontal sealing device 7, and FIGS. 10C and 10D show heat-sealing by the second horizontal sealing device 80. FIG. The wrapped packaging film 41 is represented.

  Similarly to the first embodiment, the packaging film 31 is formed with the first horizontal sealing portion 34 after the vertical sealing portion 33 is formed. At this time, the volume of the accommodating part in the packaging bag of the packaging film 31 is C3, and the actual filling amount is V3. The length in the width direction (lateral direction) of the first horizontal seal portion 34 is N3.

  On the other hand, the packaging film 41 is formed with a second lateral seal portion 45 at a position not including the first lateral seal portion 34. The length in the width direction (lateral direction) of the second horizontal seal portion 45 is N4. At this time, the volume of the accommodating part in the packaging bag of the packaging film 41 is set to C4. The actual filling amount of the packaging bag is V3 as in the case of the packaging film 31.

That is, in the second embodiment, after the bag shape is formed and the filling amount V3 is filled, the second horizontal seal portion 45 that does not divide the storage portion into a part of the content storage portion of the packaging bag is provided. By applying, the capacity of the packaging bag that can accommodate the raw material is reduced from C3 to C4. Thereby, the ratio of the raw material filling amount with respect to the raw material accommodation volume increases as follows.
V3 / C4> V3 / C3

  As described above, according to the second embodiment of the present invention, by forming the second horizontal seal portion 45 that does not include the first horizontal seal portion 34, the proportion of the content in the content accommodation portion is increased. The surface of the packaging bag can be stretched.

  Next, modifications of the embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 6 is a diagram illustrating an external configuration example of the automatic filling and packaging machine 1 according to a modification of the embodiment of the present invention. This modification is further provided with a cooling device 85 in the overall configuration of the first embodiment described above.

  The cooling device 85 cools the packaging film immediately after the second horizontal seal is applied by the second horizontal seal device 8. The cooling device 85 includes, for example, a Peltier element or a cooling fluid, and performs cooling by pressing the cooled metal against the packaging film.

  According to this modification, the seal portion is quickly cooled by the cooling device 85, so that the seal portion can be stabilized and the change in the seal portion due to the expansion pressure can be suppressed to a minimum.

  In the above-described embodiment, the packaging machine using the seal roll has been described, but the present invention is not limited to this. For example, a packaging machine using a heater bar as disclosed in Japanese Patent Application Laid-Open No. 09-272511 may include the second horizontal sealing device according to the embodiment of the present invention.

  As described above, according to the embodiment of the present invention, the contents are accommodated by forming the second horizontal seal portion in the region including the contents accommodating portion in the bag-shaped packaging film filled with the contents. The proportion of the contents in the portion can be increased, and the surface of the packaging bag can be stretched. In this embodiment, since the contact with the surface of the packaging film is minimized, it is possible to provide tension without rubbing the surface of the packaging film. Further, in this embodiment, since no handling operation is required in the process from filling to sealing, the production speed can be improved.

DESCRIPTION OF SYMBOLS 1 Automatic filling packaging machine 2, 3 tension 4 Folding guide 5 Filling nozzle 6 Vertical sealing apparatus 7 1st horizontal sealing apparatus 8, 80 2nd horizontal sealing apparatus 9 Cutter apparatus 10 Control apparatus 11, 21, 31, 41 Packaging film 12, 22 Packaging Bag Housing Part 13, 33 Vertical Seal Part 14, 34 First Horizontal Seal Part 24, 45 Second Horizontal Seal Part 71 Heat Seal Blade of First Horizontal Seal Device 72 Seal Roll Shaft 81 of First Horizontal Seal Device 81 Heat sealing blade of the second horizontal sealing device 85 Cooling device FH Original film FX Packaging film

Claims (4)

A vertical sealing device that seals edges along the flow direction of the packaging film to be conveyed to form a vertical seal portion to form a substantially cylindrical shape,
A first horizontal sealing device that seals the width direction of the substantially cylindrical packaging film to form a first horizontal sealing portion to form a bag;
A filling device that fills the packaging film with the contents when the bag is formed into a bag by the first horizontal sealing device;
And a second horizontal seal device for forming a second horizontal seal portion by sealing in a region including a content storage portion in the bag-shaped packaging film filled with the content. Filling packaging machine.   2. The automatic filling and packaging machine according to claim 1, wherein the second horizontal sealing device forms the wider second horizontal sealing portion including the first horizontal sealing portion.   2. The automatic filling and packaging machine according to claim 1, wherein the second horizontal seal device forms the second horizontal seal portion that does not include the first horizontal seal portion.   2. The automatic filling and packaging machine according to claim 1, wherein the contents to be filled contain a fluid.

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