JP4596512B2 - Packaging and filling device and liquid removing device - Google Patents

Description

  The present invention relates to a packaging and filling apparatus that manufactures a packaging container filled with liquid food such as milk and juice, and a liquid removal apparatus that is disposed in the apparatus and removes a sterilization treatment liquid adhering to the surface of a packaging material.

Conventionally, for example, when manufacturing a packaging container filled with liquid food such as milk (including liquid food), a web-like packaging material made of a flexible laminate is sealed in a longitudinal direction to form a tube. A packaging container is manufactured by filling the packaging material with liquid food and then sealing in the lateral direction.

An outline of an example of the container filling and packaging apparatus is shown in FIG. In the packaging and filling apparatus shown in this example, the packaging material web 41 having a thermoplastic material layer on the inner and outer layers and wound in a roll shape is unwound and conveyed through the packaging and filling apparatus by rollers. The strip tape is joined to one end of the packaging material web by the strip tape applicator 43. The packaging material web passes through the sterilization liquid tank 44 and is sterilized. The sterilization liquid adhering to the surface of the packaging material is removed by the squeezing roller and the air knife 45.

Next, it is formed into a tube shape by the forming roller 46. Both ends of the packaging material are overlapped to form an overlap, and the overlap is sealed in the vertical direction of the tube by the vertical seal element 42 in the vertical direction. The tube is filled with liquid food from the filling pipe 47. The tube is sandwiched between the sealing jaw and the opposing jaw 48 while being sent downward by a length corresponding to one packaging container. Two transverse seal zones are formed by transverse sealing in the transverse direction, and simultaneously formed into a pillow-shaped preform 49 at the same time. The middle of the sealing band of the pillow-shaped preform is cut with a knife or the like to separate into individual pillow-shaped preforms 49, and molded into a final package filling container.

Referring to the partially enlarged view of FIG. 2, the squeezing roller squeezes the sterilization solution and the air knife blows hot air over the entire width of the wrapping material to remove the remaining sterilizing agent. A blow-off process using hot air is performed. When a recess is formed on the surface of the packaging material, an air nozzle portion and a blow nozzle that performs spot blowing in the recess are disposed at a position where the recess passes.
JP 11-348937 A

In the aforementioned aseptic packaging and filling apparatus, a hydrogen peroxide solution is usually used as a sterilization treatment solution. In order to remove from the packaging material as described above, a squeezing roller and a hot air air knife are used. For complete removal, it is necessary to control the surface smoothness of the roller and its pressing pressure, and to control the air volume and temperature of the air knife. If it is not sufficient, hydrogen peroxide remains. Further, the surface of the packaging material has crease lines and straw holes for container molding, and is not flat, so that the effect of a roller or the like cannot be sufficiently obtained. Moreover, if the temperature of the air knife is raised too much, the packaging material may be damaged.

There is a demand for a packaging and filling device and a liquid removing device that do not have the disadvantage that sterilization liquid remains even if the management of the surface smoothness of the roller and its pressing pressure, and the management of the air volume and temperature of the air knife are alleviated.
Even if the surface of the wrapping material has irregularities such as crease lines or straw holes, it does not increase the temperature of the air knife and therefore does not damage the wrapping material, and the sterilization solution can be completely removed. It is necessary.

In this packaging and filling apparatus, after removing a certain amount of sterilization treatment liquid such as hydrogen peroxide liquid with a squeezing roller, the packaging material is vibrated with ultrasonic waves or the like when sprayed with hot air using an air knife, and adhered to the surface. The inventor has obtained the knowledge that the sterilization liquid such as hydrogen peroxide can be removed with an air knife even by a small air volume by floating the droplets from the surface of the packaging material.

The packaging and filling apparatus according to the present invention is formed into a tube shape by sealing the web-like packaging material conveyed downward in the longitudinal direction along the edge of the packaging material with a longitudinal sealing device.
The tubular packaging material is filled with liquid food via a filling pipe, and is sealed in a lateral direction at a set distance of the tubular packaging material by a horizontal sealing device disposed below the vertical sealing device,
An apparatus for obtaining a packaging container by cutting the packaging material at the horizontal seal portion by a cutting device disposed below the horizontal seal device,
Having a liquid removal device on the upstream side for removing the treatment liquid containing the bactericide attached to the surface of the web-like packaging material;
The liquid removing device includes an air knife portion that blows air over the entire width of the packaging material, and an ultrasonic vibration portion that imposes a vibration motion on the packaging material portion that is being blown ,
The treatment liquid adhering to the surface of the packaging material is floated from the surface of the packaging material by the vibration motion, and the treatment liquid is removed by blowing air from the air knife portion .

The liquid removing apparatus according to the present invention is formed in a tube shape by sealing the web-like packaging material conveyed downward in the longitudinal direction along the edge of the packaging material with a longitudinal sealing device,
The tubular packaging material is filled with liquid food via a filling pipe, and is sealed in a lateral direction at a set distance of the tubular packaging material by a horizontal sealing device disposed below the vertical sealing device,
A liquid removing device disposed upstream of a packaging and filling device for obtaining a packaging container by cutting the packaging material at the lateral sealing portion by a cutting device disposed below the lateral sealing device;
The liquid removal apparatus removes a treatment liquid containing a bactericide attached to the surface of the web-like packaging material,
The liquid removing device includes an air knife portion that blows air over the entire width of the packaging material, and an ultrasonic vibration portion that imposes a vibration motion on the packaging material portion that is being blown ,
The treatment liquid adhering to the surface of the packaging material is floated from the surface of the packaging material by the vibration motion, and the treatment liquid is removed by blowing air from the air knife portion .

The packaging and filling device and the liquid removing device according to the present invention wrap the droplets containing the sterilizing agent adhered to the surface of the packaging material by vibrating the packaging material to which the sterilization treatment liquid is adhered with an ultrasonic vibration device when blowing hot air with an air knife. By floating from the surface of the material, sterilization liquid such as hydrogen peroxide is removed with an air knife even with a small air flow. Therefore, removal of hydrogen peroxide is ensured.
In addition, even a small air volume from the air knife can be removed, and the air knife air volume can be reduced and energy efficiency can be improved.
Furthermore, it is not necessary to raise the temperature of the air knife more than necessary, and damage to the packaging material can be reduced.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic partially enlarged side view of a liquid removing apparatus provided in a packaging and filling apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic side view of a liquid removing apparatus provided in the packaging and filling apparatus in the embodiment of the present invention.
FIG. 3 is a schematic perspective view of a packaging and filling apparatus that can be used in the present invention.

The liquid removing apparatus according to the present invention is disposed on the upstream side of the packaging and filling apparatus as shown in FIG.
In the packaging and filling apparatus, the web-shaped packaging material 41 wound in a roll shape is unwound and conveyed in the packaging and filling apparatus by rollers. The strip tape is joined to one end of the packaging material web by the strip tape applicator 43. The web-shaped packaging material passes through the sterilization processing liquid tank 44 and is sterilized. The sterilization liquid adhering to the surface of the packaging material is removed by the squeezing roller and the air knife 45. A tube is formed by the forming roller 46. Both ends of the packaging material are overlapped to form an overlap, and the overlap is sealed in the vertical direction of the tube by the vertical seal device 42 in the vertical direction. The tube is filled with liquid food from the filling pipe 47. The lateral seal device 48 laterally seals in the transverse direction to form two lateral seal zones, which are continuously formed into a pillow-shaped preform 49. The middle of the sealing band of the pillow-shaped preform is cut with a knife or the like to separate into individual pillow-shaped preforms 49, and molded into a final package filling container.
The liquid removing apparatus according to the present invention removes the processing liquid adhering to the surface of the web-shaped packaging material that has passed through the sterilizing processing liquid tank 44.

As shown in FIG. 2, the liquid removing apparatus includes an air knife unit 11 that blows air over the entire width of the packaging material, and an ultrasonic vibration unit 13 that imposes a vibration motion on the packaging material portion that is being blown.
The air knife unit 11 blows hot air over the entire width of the packaging material 41. The hot air is sent from a hot air source (not shown) through the supply pipe 16 and is discharged from a blowout port facing the packaging material 41 of the air knife unit 11. A hot air nozzle 14 is provided to extend in parallel with the packaging material surface from the outlet. As indicated by a number of arrows in FIG. 1, the hot air is blown obliquely downward with respect to the packaging material surface.

The ultrasonic vibration part 13 of this embodiment is provided in the vicinity of the lower surface on the opposite side of the packaging material surface to which the hot air is blown, immediately below. From this proximity distance, an oscillating motion is imposed on the portion of the packaging material being blown. By oscillating motion, the treatment droplets adhering to the surface of the packaging material are lifted even slightly from the surface of the packaging material, so that even a slight air volume can be removed with air.
The specifications relating to ultrasonic vibration can be appropriately selected from the application, scale, and other environmental parameters.
As shown in FIG. 1, after sterilization treatment liquid such as hydrogen peroxide solution is removed from the packaging material 41 to some extent by the squeezing roller 12, hot air is blown by the air knife 11 of the liquid removal device. The packaging material 41 to which is attached is vibrated by an ultrasonic vibration device. The droplets adhering to the packaging material surface float from the packaging material surface, are removed from the packaging material surface with a slight amount of hot air, and are transported along with the hot air from the air knife.
After completely removing the sterilizing solution, the packaging material 41 proceeds to the next processing step in the apparatus as shown in FIG.

In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

  A packaging container filled with liquid food such as milk and juice can be produced.

It is a general | schematic partial expanded side view of the liquid removal apparatus provided in the packaging filling apparatus in the Example of this invention. It is a schematic side view of the liquid removal apparatus provided in the packaging filling apparatus in the Example of this invention. It is the schematic of the example of a packaging container manufacturing apparatus.

DESCRIPTION OF SYMBOLS 11 Air knife part 12 Diaphragm roller 13 Ultrasonic vibration part 14 Nozzle 41 Packaging material

Claims (2)

The web-like packaging material conveyed downward is sealed in the longitudinal direction along the edge of the packaging material with a vertical sealing device to form a tube shape,
The tubular packaging material is filled with liquid food via a filling pipe, and is sealed in a lateral direction at a set distance of the tubular packaging material by a horizontal sealing device disposed below the vertical sealing device,
An apparatus for obtaining a packaging container by cutting the packaging material at the horizontal seal portion by a cutting device disposed below the horizontal seal device,
Having a liquid removal device on the upstream side for removing the treatment liquid containing the bactericide attached to the surface of the web-like packaging material;
The liquid removing device includes an air knife portion that blows air over the entire width of the packaging material, and an ultrasonic vibration portion that imposes a vibration motion on the packaging material portion that is being blown ,
A packaging and filling apparatus , wherein the treatment liquid adhering to the surface of the packaging material is floated from the surface of the packaging material by the vibration motion, and the treatment liquid is removed by blowing air from the air knife portion . The web-like packaging material conveyed downward is sealed in the longitudinal direction along the edge of the packaging material with a vertical sealing device to form a tube shape,
The tubular packaging material is filled with liquid food via a filling pipe, and is sealed in a lateral direction at a set distance of the tubular packaging material by a horizontal sealing device disposed below the vertical sealing device,
A liquid removing device disposed upstream of a packaging and filling device for obtaining a packaging container by cutting the packaging material at the lateral sealing portion by a cutting device disposed below the lateral sealing device;
The liquid removal apparatus removes a treatment liquid containing a bactericide attached to the surface of the web-like packaging material,
The liquid removing device includes an air knife portion that blows air over the entire width of the packaging material, and an ultrasonic vibration portion that imposes a vibration motion on the packaging material portion that is being blown ,
A liquid removing apparatus , wherein the treatment liquid adhering to the surface of the packaging material is floated from the surface of the packaging material by the vibration motion, and the treatment liquid is removed by blowing air from the air knife portion .

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