JP5656450B2 - Packaging and filling equipment - Google Patents

Description

The present invention relates to a packaging and filling apparatus for filling beverages and the like.

When manufacturing packaging containers that contain liquid foods such as milk, mineral water, tea, juice, soup, alcohol, etc., strip-shaped (band-shaped) packaging laminate materials are used, and packaging laminate materials are heat sealed, ultrasonic sealed, etc. A packaging container is formed by being sealed by. For example, in a packaging filling device, a sealing tape is joined in advance to the edge of a strip-shaped packaging laminate material, the packaging laminate material is formed into a tube shape, and both edges of the packaging laminate material are joined together with the sealing tape After pressing and sealing in the longitudinal direction (longitudinal direction) with a vertical sealing device, while filling the tube-shaped packaging laminate material with liquid food, it is sealed and cut in the lateral direction with a horizontal sealing device, An original container is formed, and the original container is further formed into a predetermined shape to complete a packaging container.

In the packaging and filling apparatus, the belt-shaped packaging laminated material is conveyed in the apparatus. In the case of continuous packing and filling, since the strip-shaped packaging laminate material does not have an infinite length, the next another strip-shaped packaging laminate material is formed by joining a seam. The edge of the other end of the strip-shaped packaging material is aligned with the vertical seal portion surface, which is the edge of the strip-shaped packaging laminate material, and these materials are joined. That is, both edges of the packaging laminated material formed into a tube shape are pressed together with the sealing tape by a vertical sealing device to perform vertical sealing.
When joining the edge portion of the other end to the edge surface of the strip-shaped packaging laminate material, for example, preheating the edge portion of the strip-shaped packaging laminate material with the edge of the other end and sandwiching them, the pressure is applied to one side. A counter roller is rotatably disposed so that the roller is rotatably disposed and pressed, and on the other side, receives pressure from the pressure roller, opposes and supports the roller.
Therefore, as the preheated packaging laminate material is conveyed, the pressure roller and the counter roller are pressed and rotated with both edges of the packaging laminate material being sandwiched, and the surfaces to be joined together are heat sealed. Be joined. (For example, refer to Patent Document 1).

No. 04-051138

As described above, when continuously packing and filling, a belt-like packaging laminate material and the next another belt-like packaging laminate material are formed by joining two seams. At the seam of the vertical seal portion where the two edges of the packaging laminate material formed into a tube shape are overlapped, the thickness is 4 sheets, which is twice the thickness of the normal portion. Therefore, there is an inconvenience that a sufficient seal may not be obtained even if the same heat energy as that in the normal portion is applied.
The present invention meets the above-described needs and desires, and an object thereof is to provide a packaging and filling apparatus that can sufficiently seal a seam at a vertical seal portion.

The packaging and filling apparatus of the present invention that solves this problem continuously forms a seam of a belt-like packaging laminate material and the next another belt-like packaging laminate material by forming a seam, and forms the belt-like packaging material into a tube shape. The liquid food from the filling pipe into the tubular packaging material that is vertically sealed in the vertical line direction of the tube overlapped at both ends of the packaging material and continuously conveyed vertically downward, at a predetermined position above the outlet of the filling pipe Filled up to the liquid level, transversely sealed while pulling down the tube with the sealing jaw and counter jaw in the direction transverse to the tube below the liquid level, preliminarily molded by sandwiching the tube with the molding flap at the same time. in cut and a packaging and filling apparatus for manufacturing a packaging container, the vertical sealing device, a preheating means for heating the opposite ends of the portion to be longitudinally sealed, the portion of the seam is detected, the test Based on the signal, it from an additional pre-heating means for further heating the both end portions which are heated pre a said joint portion, and pressing means for sealing by pressing the the both ends of the portion to be longitudinally sealed, which is heated and wherein and Turkey.

In a preferred embodiment of the present invention, the belt-shaped packaging laminate material has a conductive metal foil, the preheating means is a high frequency induction heating means, and the additional preheating means is a heating roller that heats both ends when the joint portion passes. is there.

According to the present invention as described above, the following advantageous effects can be obtained and remarkable effects can be obtained.
The packaging and filling apparatus according to the present invention continuously joins the belt-shaped packaging laminate material and the next another belt-shaped packaging laminate material by forming a seam of overlap.
Although the belt-like packaging laminate material does not have an infinite length, the next another belt-like packaging laminate material is formed by a seam so that it can be continuously packaged and filled.
In the packaging and filling apparatus of the present invention, the belt-shaped packaging material is formed into a tube shape, and is vertically sealed in the vertical line direction of the tube that is overlapped at both ends of the packaging material.
Since the strip-shaped packaging laminate material is joined, the tubular packaging material can be continuously formed by the formed seam without temporarily stopping the operation of the apparatus.

In the packaging and filling apparatus of the present invention, liquid food is filled from a filling pipe into a tubular packaging material that is continuously conveyed vertically downward to a liquid level at a predetermined position above the outlet of the filling pipe. In the transverse direction of the tube, the tube is sandwiched between the sealing jaw and the counter jaw, and then horizontally sealed. The tube is simultaneously sandwiched between the molding flaps and pre-formed, and then cut in the transverse sealing zone to produce a packaging container.
The seam continuously fills the tubular packaging material with liquid food without temporarily stopping the operation of the apparatus, and continuously seals the tubular packaging material continuously. Further, the packaging container is continuously cut without being cut at the horizontal sealing zone.
A packaging container including a seam is manufactured. By removing this container and a plurality of containers before and after the container, continuous operation can be performed and shipment of nonconforming products can be prevented.

In the packaging and filling apparatus according to the present invention, the vertical sealing device includes a preheating means for heating both ends of the portion to be vertically sealed, and an additional portion for detecting the joint portion and heating the preheated both ends. It comprises preheating means and pressing means for pressing and sealing both ends of the heated portion to be vertically sealed.
Continuously form the seam of the wrapping wrapping laminate and the next wrapping wrapping laminate to form a seam of overlap, so the frequency of encounter is very low, but the seam part is a place to be sealed vertically .
As shown in FIG. 2 (a), when the strip-shaped packaging laminate material 1a and the next another strip-shaped packaging laminate material 1b are joined together by forming a seam 1c in which two sheets are overlapped, As shown in FIG. 2 (b), a gap 1e is also formed at the seam at the vertical seal portion where both edges of the laminated material 1 are overlapped, resulting in four thicknesses 1c, 1c, 1c, 1c. The thickness is twice that of the portion.

The preheating means of the vertical seal device heats both ends of the portion to be vertically sealed. Furthermore, in the packaging filling apparatus of this invention, an additional preheating means detects a seam part, and based on this detection signal, it is a seam part and heats the both ends of the location which should be longitudinally sealed.
As described above, the joint portion has a thickness twice that of the normal portion, but can be sufficiently heated by this additional preheating means.

In a preferred embodiment of the present invention, the belt-shaped packaging laminate material has a conductive metal foil, the preheating means is a high frequency induction heating means, and the additional preheating means is a heating roller that heats both ends when the joint portion passes. is there.
When the magnetic flux generated by flowing high-frequency current through the preheating means intersects with the conductive metal foil, a high-frequency circulating current (eddy current) is induced in the metal foil, and this current flows according to the specific resistance of the metal foil, Causes fever.
When the seam is formed, the seam detection device can easily detect the seam by attaching the unique mark to the seam. Further, since a step is generated in the joint portion in appearance, the joint detection device can detect the step and recognize the joint portion.

FIG. 1 is a schematic diagram illustrating packaging filling according to the present invention. FIG. 2 is a cross-sectional view for explaining a joint portion of the vertical seal zone. FIG. 3 is an external view showing a joint portion of the vertical seal zone. FIG. 4 is a schematic perspective view of an example of an apparatus that can be used in the packaging and filling apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 4, the web-like (band-like) packaging laminate material 1 is accommodated in a packaging and filling device in a reel state. The reel-shaped packaging laminate material 1 can produce a considerable number of containers 14.
Since the packaging is continuously packaged, the reel strip-shaped packaging laminate material 1 and the next reel strip-shaped packaging laminate material 1 are joined together by forming a seam of two overlapping sheets.
The packaging laminate material 1 is composed of a paper substrate and a flexible laminate in which polyethylene resin is laminated on both sides of the paper substrate, and an aluminum foil or gas barrier property between the paper substrate and the film as necessary. A barrier layer made of resin or the like is formed, and exterior printing is applied in advance to a portion corresponding to the surface of the packaging container 14.

The fed packaging laminate material 1 is continuously conveyed by a feeding device as a conveying means, is sent to a sealing tape adhering device 3 through a bending roller, a damper roller, and the like, and is wrapped by the sealing tape adhering device. The sealing tape 2 is stuck by heat sealing along one edge of the.
When adhering the sealing tape 2 to the edge of the strip-shaped packaging laminate material 1 in advance, the pressure-roller is rotatably arranged and pressed on one side with the strip-shaped packaging laminate material and the sealing tape 2 sandwiched therebetween, A counter roller is rotatably disposed so as to receive pressure from the pressure roller, face the pressure roller, and support the pressure roller.
As the packaging laminate material is conveyed, the pressure roller and the counter roller are pressed and rotated while sandwiching the packaging laminate material and the sealing tape, and the mating surfaces of the vertical seal portions are sealed and bonded.

As for the packaging laminated material 1, the pull tab is stuck by the pull tab sticking apparatus as needed. The packaging laminated material 1 is sent to the sterilization tank 4 and sterilized with a sterilization liquid such as hydrogen peroxide in the sterilization tank 4. The packaging laminate material 1 is sent to the air knife 5, dried by the air knife 5, and then sent to the sterilization chamber 40. The packaging laminate material 1 is gradually deformed by the upper molding ring 6 and other molding rings to be molded into a cylindrical shape. The packaging laminate material 1 is sealed in the longitudinal direction heated and pressed by the preheating heating means 8 of the longitudinal sealing device, and the fluid food supplied through the filling pipe 7 is filled into the packaging laminate material 1.

When both ends of the packaging laminate material formed into a cylindrical shape are pressed together with the sealing tape by a longitudinal seal device and vertically sealed, the strip-shaped packaging laminate material and the strip-shaped packaging material on the other edge are sandwiched between A pressure roller is rotatably disposed on the inner side and pressed, and a counter roller is rotatably disposed on the outer side of the cylinder so as to receive pressure from the pressure roller and to oppose and support the pressure roller. As the packaging laminate material is conveyed, the pressure roller and the counter roller are pressed and rotated with the edges of the packaging laminate material sandwiched between them, and the mating surfaces of the vertical seal portions are sealed and bonded.

The cylindrical packaging laminated material 12 is guided by a roller, sent to the lateral sealing device 10, and sandwiched and sealed in the lateral direction. A container 13 is formed. And the original container 13 is conveyed by the last shaping | molding conveyance apparatus, and is shape | molded by the final shape, and the packaging container 14 which accommodates a fluid food is completed.

As described above, the belt-shaped packaging laminate material and the next another belt-shaped packaging laminate material are formed and joined together.
As illustrated in FIG. 2 (a), when the seam 1c and the next other belt-like packaging laminate material 1b are overlapped to form a seam 1c, and are formed into a tube shape. At the seam at the vertical seal portion where both edges of the packaging laminate material 1 are overlapped, the thickness is four as shown in FIG.

As shown in FIG. 1, the high frequency induction heating means of the preheating means 8 of the vertical seal device heats both end portions 1a and 1b of the portion to be vertically sealed. In the packaging and filling apparatus of this aspect, the detection device 22 of the additional preheating means detects the joint portion (not shown in FIG. 1). The seam detection device 22 detects the step of the seam portion on the appearance and recognizes the seam portion.
Based on this detection signal, the controller 23 transmits a control signal, and the heating rollers 21 and 20 of the additional preheating means are sandwiched in the direction of the arrow by the roller support members 24 at both ends of the portion to be vertically sealed, and should be vertically sealed Heat both ends of the spot.
The seam portion is twice as thick as the normal portion, but is sufficiently heated by this additional preheating means.
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.

The present invention can be applied to the production of packaging and filling beverages such as juice and milk in packaging containers.

1 ·· Packaging material 8 ·· Preheating means 20 ·· Heating roller 21 · · Heating roller 22 · · Seam detection device 23 · · Controller

Claims (2)

Continuously forming a seam of the belt-like packaging laminate material and the next another belt-like packaging laminate material by forming a seam, forming the belt-like packaging material into a tube shape, and superimposing them at both ends of the packaging material A liquid food is filled from the filling pipe into the tubular packaging material that is vertically sealed in the vertical line direction and continuously conveyed vertically downward to a liquid level at a predetermined position above the outlet of the filling pipe. The tube is transversely sealed while being pulled down with the seal jaw and counter jaw in the cross direction of the tube, and the tube is simultaneously molded with the molding flap, and then cut into the transverse seal zone to produce a packaging container. A packaging and filling device for
Vertical sealing device, a preheating means for heating the end portions of the vertical seal to portions to detects a portion of the seam, on the basis of the detection signal, further the both ends were heated pre a said joint portion It consists of additional preheating means for heating, and pressing means for pressing and sealing the both end portions of the heated portion to be vertically sealed,
A packaging and filling apparatus.   The strip-shaped packaging laminate material has a conductive metal foil, the preheating means is a high-frequency induction heating means, and the additional preheating means is a heating roller that heats the both ends when a joint portion passes. The packaging filling device according to 1.