JPH06102450B2 - Filling and packing paper containers - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a filling container device for a paper container that fills and wraps a liquid such as milk, juice, or sake in a paper container.

<Prior Art> Paper containers are now widely used as liquid containers. By using this paper container,
By assembling the materials and filling and packaging the assembled containers together, there is an advantage that the production cost can be reduced.

In addition, disposal after use has a simple advantage.

Aseptic filling and packaging are generally performed so that the liquid filled in such a paper container can be stored for a long period of time. In order to carry out this aseptic filling and packaging, for example, as shown in JP-A-61-244702, the carton material is made into a tubular shape, transported into a sterile chamber, and the bottom of the container is assembled in the sterile chamber, and a container with a germicide is used. Sterilization, drying, liquid filling, curl folding on the top, folding on the top, and sealing the container.

<Problems to be Solved> As shown in the above publication, by performing the steps after assembling the bottom of the container in a sterile chamber, there is no external influence, but assembling the bottom in the sterile chamber, Since the curling is performed, paper dust is inevitably generated and the inside of the sterile chamber is contaminated by the paper dust.

Further, there is a possibility that the generated paper dust may adhere to the device in the sterile chamber or may be mixed into the container.

Further, since the bottom assembly device of the container is in the aseptic chamber, the aseptic chamber becomes large and it is difficult to maintain a constant atmosphere in the chamber.

Therefore, an object of the present invention is to provide a filling and packaging apparatus for filling and packaging a paper container in which the aseptic chamber is made as small as possible and the influence of paper dust is minimized.

<Means for Solving the Problems> According to the present invention, a folded container material is formed into a tubular shape to form a bottom forming portion for assembling the bottom portion by a mandrel, a bottom portion is formed, air is blown to the opened container, and paper dust is removed by suction. A molding unit having a paper dust removing unit for carrying out the above, and a primary curling device for folding the top, and a disinfectant spraying device which is located below the molding unit and sterilizes an open container conveyed from the molding unit. , A drying device, a filling nozzle, a secondary curling device, an opening heating device, and a sealing device, and a sterile chamber in which the inside is kept at a positive pressure from the outside, and a transfer for transferring the container from the molding unit to the sterile chamber An endless carrier that consists of a device and conveys a container in a sterile chamber is used to increase the size of one of the connecting holes that fix the container to the chain at regular intervals. The paper container filling and packaging apparatus is characterized in that the guide of the cell is in a state of being opened from the other portion at the portion for receiving the container from the molding portion.

<Operation> Assembling the bottom part where paper dust is most likely to be generated in the molding part,
Since the paper is transferred into the aseptic chamber after the primary curling is performed and the paper dust is removed, the influence of the paper powder is reduced in the aseptic chamber.

Further, since it is possible to assemble the bottom of the container at a place other than the aseptic chamber portion, the chamber can be made smaller and it is easy to keep the inside of the chamber in a sterile state.

Furthermore, since the molding unit and the sterile chamber unit are separated from each other, the sterility of the sterile chamber unit is not affected even if an abnormality occurs in the molding unit. Furthermore, because one of the connection holes that make up the transport device for the aseptic chamber is fixed to the chain in a large state, and the cell guide is opened in the part that receives the container from the molding part more than the other part, In the receiving part, the cell is opened more along the guide than in the other part, and the container transferred from above does not hit the cell and can be transferred smoothly from the molding part into the sterile chamber.

<Example> An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic cross-sectional explanatory view showing an example of a filling and packaging apparatus according to the present invention, which is a supply apparatus 10 for supplying a cylindrical paper container material, and a radial shape for forming the bottom of the supplied material. A bottom forming device (not shown) in which a mandrel is arranged, a conveying device for conveying a container with an open top taken out from the bottom forming device, a paper for removing paper dust attached to the container during the conveyance. Aseptic chamber B provided with a powder removal device and a primary curving and folding device 13 for folding the top portion along a ruled line, a conveying device for the molding part A, and a separate conveying device, the molding part A and the aseptic chamber B. It is a filling and packaging device for a paper container, which comprises a transfer device C provided between them.

Here, the aseptic chamber B is composed of a sterilizing agent spraying device 20, a drying device 21, a filling nozzle 22, a secondary curl-folding device 23, an opening heating device, and a sealing device 25 for sealing the opening in accordance with the transport direction.

In each of the above-mentioned devices, the operating part is located in the sterile chamber, the drive source for operating the operating part is located outside the sterile chamber, and the sterile chamber is always kept in a positive pressure state from the outside air. , The condition that the outside air does not enter is kept.

The transfer device C is located above the transfer guide 30 having an opening of the same size as the transfer carrier between the terminal end of the molding section A and the start end of the sterile chamber B, and the vertical position. Forming part A
When the transportation of the container is stopped, the moving arm 31 descends, and the container is transferred from the molding unit A to the aseptic chamber B along the transfer guide.

Further, as shown in FIG. 2, the carrier device D for carrying the container in the aseptic chamber for transferring the container from the molding unit to the aseptic chamber is provided with cells 40 for fixing the container at a constant interval on an endless chain 41. , Connecting hole for fixing to the chain 41
One of the connecting holes 42B of 42A and 42B is enlarged.

Then, the container delivery portion of the guide 43 that regulates the cell transport direction is set to be open from other portions.

Next, a filling and packaging method using the filling and packaging device will be described.

First, the tubular material of the paper container is inserted into the mandrel of the bottom forming portion from the supply device 10 in a tubular state, and the assembled bottom portion is formed by heat sealing.

Next, the container discharged from the mandrel is blown with aseptic air by a carrier device having a carrier, and the paper dust removing device 12 having a suction mechanism removes the paper dust generated at the time of forming the bottom portion, and then the container. Make a primary curl by folding the top along the ruled line. When the molding unit goes through the previous process and is located at the end of the transfer device, the moving arm descends from above, and the container is transferred to the cell of the transfer device in the sterile chamber part along the moving guide.

At this time, the cell is in a state in which the large connecting hole 42B side is opened along the guide, and even if a slight deviation from the upper molding portion occurs, the container can be smoothly transferred without hitting the cell, and in the next step, the guide is used. Along the shape of the container, it does not adversely affect other processes.

A sterilizing agent such as steam is sprayed on at least the inner surface of the opening of the container transferred to the aseptic chamber, and then dried by hot air.

After filling a predetermined amount of contents from the filling nozzle into the container sterilized in this way, folding is performed again, then the inside and outside surfaces of the opening can be bonded with hot air, and the top part is sealed by the sealing device and filled. The packaging is completed and the sterile tuber B is discharged.

<Effects of the Invention> As described above, according to the present invention, the bottom part assembly in which paper dust is likely to be generated, the part of the primary curl is performed outside the aseptic chamber, and after a certain amount is removed before being transferred to the aseptic chamber part. Since it is transferred, it is possible to prevent contamination by paper dust in the sterile chamber section as much as possible.

Further, since the bottom assembly portion occupying a large area is provided outside the aseptic chamber portion, the aseptic chamber can be made to have the minimum size, and it becomes easy to maintain the atmosphere in the aseptic chamber portion at a constant state.

Further, since the molding unit is provided on the upper side and the aseptic chamber is provided on the lower side, the installation area of the device is reduced, and the cell for fixing the container of the carrier device for carrying the inside of the aseptic chamber is provided in the container molding unit. Since it was configured to open at the delivery part from, it was possible to prevent accidents where the container hits the cell during transfer and the device stops, and smooth operation became possible.

And since the transport mechanism for the molding unit and the sterile chamber is separate, even if an accident occurs in the molding unit where an accident easily occurs due to defective molding, etc., without impairing the sterility of the sterile chamber,
Once the accident at the molding department is resolved, it can be reused as it is.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view showing an embodiment of the present invention, and FIG. 2 is a plan view showing a part of a transfer device in a sterile chamber. A ... Molding unit, B ... Aseptic chamber C ... Transfer device, D ... Conveyor device 10 ... Supply device, 12 ... Paper dust removing device 13 ... Primary curl folding device, 20 ... Disinfectant spraying device 21 …… Drying device, 22 …… Filling nozzle 23 …… Secondary folding device, 24 …… Heating device 25 …… Seal device, 40 …… Cell 41 …… Chain, 42A, 42B …… Connecting hole 43 …… guide

Claims (1)

[Claims] 1. A bottom part forming part for assembling a bottom part by a mandrel to form a folded container material into a tubular shape, and forming a bottom part,
Air is blown to the container in the open state, a paper dust removing unit for removing paper dust by suction, and a molding unit having a primary fold folding device for folding the top, and a molding unit located below the molding unit, Aseptic with a sterilizing agent spraying device for sterilizing the transported open container, a drying device, a filling nozzle, a secondary curl folding device, an opening heating device, and a sealing device, and the inside of which is kept under positive pressure from the outside. A chamber, a transfer device for transferring a container from the molding unit to the aseptic chamber, and an endless transfer device for transferring the container in the aseptic chamber, which connects cells for fixing the container to the chain at regular intervals. A filling and packaging device for a paper container, characterized in that one of the holes is enlarged and a guide of the cell is opened at a portion for receiving the container from the molding portion as compared with other portions.