JP2012140162A - Paper dust removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper dust removing device in a paper container forming step wherein a band-like packaging material is made cylindrical and it is filled with liquid food, and a paper container is manufactured.SOLUTION: A paper dust removing device 8 includes raking means 11 for paper dust adhering to both ends 5a of a band-like packaging material 5, collecting means 12 the raked paper dust, and a coupling tube 13 for connecting the raking means 11 with the collecting means 12, and the collecting means 12 for paper dust is of vacuum type. The raking means 11 has a recessed shape in cross section, and paired side plates and paired bottom plates covering the ends 5a of the band-like packaging material 5 are formed L in length and W in depth. A brush is implanted by nearly 50% of depth W and a half of length W/2 onto the bottom surface, and the tip end of the brush is pressed down to the band-like packaging material 5 with an overlapping space. The coupling tube 13 is positioned at nearly 0.9L from the upstream to the paired side plates with a length of L, and it is connected to a space area enclosed by the paired side plates and brush.

Description

The present invention relates to a paper dust removing device for a paper container filled with liquid food, and more particularly to a paper dust removing device provided in a paper container filling device for continuously filling liquid food using a band-shaped packaging material to produce a paper container.

Conventionally, the content of patent document 1 is known as a prior art regarding the paper dust removal apparatus of the paper container filling apparatus filled with liquid foods, such as juice and milk. According to Patent Document 1, a strip-shaped packaging material is used in a filling machine to fill a tube-shaped packaging material formed by forming a longitudinal seal portion in the longitudinal direction, and sealed and cut by a lateral seal portion at predetermined intervals. Thus, a paper container is formed.

When the packaging material is charged, there is a problem that it is difficult to remove the paper dust because the adhesive force of the paper dust increases due to electrostatic force. Therefore, as shown in FIG. 8, the paper dust removing device 35 includes a static eliminating device 31, 32 that neutralizes the front side and the back side of the packaging material 30, and a dust collecting device that removes the paper dust adhered to the neutralized packaging material 30. 33 and the dust collector 33 is provided with a dust collection nozzle 34. In the case of DC type ionizers, the static eliminators 31 and 32 are provided with a discharge needle composed of a positive electrode needle and a negative electrode needle (not shown), a high voltage power source for applying a high voltage to each discharge needle, and discharging by applying a high voltage. The packaging material 30 is irradiated with ions released from the needle. As a result, the packaging material 30 is neutralized, the electrostatic force is reduced, and the adhesive force of the paper powder adhering to the packaging material 30 is reduced, thereby improving the dust collection effect.

JP 2006-256675 A

It is difficult to reliably remove the paper dust adhering to the end of the packaging material 30 by static elimination, and the inside of the guide roller and clean chamber is rarely contaminated with paper dust, but there is a possibility that the paper dust may be mixed into the paper container. It was. For this reason, there has been a problem that the manufacturing cost of the paper container is increased because the cost increases when visual inspection, sampling, or the like is performed.

The present invention solves the problems of the paper dust removing device provided in the conventional paper container filling device, reliably prevents paper dust from being mixed into the paper container, and can reduce the manufacturing cost of the paper container. An object is to provide a removal device.

In the first aspect of the present invention, a paper base material provided with a thermoplastic resin on both sides is formed into a cylindrical shape by a vertical seal portion, filled with a content liquid, sealed and cut by a horizontal seal portion, and a pillow-shaped prototype container is continuously formed. This is a paper dust removing device provided in a paper container molding apparatus that forms a top surface and a bottom surface by folding a pair of flap portions of this prototype container by thermocompression bonding. In this paper dust removing device, paper dust scraping means adhering to both end portions of the paper base material and scraping paper dust collecting means are connected via a connecting pipe, and the scraping means are both end portions of the paper base material. The paper dust collecting means is a vacuum type with a brush in contact with the brush.

The invention of claim 2 is the paper dust removing apparatus according to claim 1, wherein both ends of the paper base are covered with a pair of side plates together with the brush.

A third aspect of the present invention is the paper dust removing apparatus according to the first or second aspect, wherein the connecting pipe is connected to an intermediate region of the brush.

The invention according to claim 4 is the paper dust removing device according to claim 2 or 3, wherein an auxiliary brush that contacts both surfaces of the paper base is provided inside the pair of side plates. .

A fifth aspect of the present invention is the paper dust removing device according to the first aspect, wherein the scraping means is formed in a ring shape with a brush contacting the one end portion of the paper base material.

According to the invention of claim 1, in the paper dust removing device, the paper dust scraping means adhering to both ends of the paper base and the scraped paper dust collecting means are connected via a connecting pipe, and the scraping The means is a brush that contacts both ends of the paper base, and the paper dust collecting means is a vacuum type.
For this reason, since the brush which is the scraping means is in direct contact with both ends of the paper base, the paper dust adhering to both ends is physically scraped by the brush, and the paper dust is vacuumed by the paper dust collecting means. Since it can be reliably collected by force, it is possible to reliably prevent paper dust from being mixed into the paper container.

Since the paper powder at both ends of the paper base is simply scraped with a brush, the production cost is low. Furthermore, since it is not necessary to conduct a paper dust mixing inspection by visual inspection or sampling, the operation is simplified, so that the yield of the paper containers is improved and the manufacturing cost of the paper containers can be reduced.

According to the invention of claim 2, since both end portions of the paper base material are covered with the pair of side plates together with the brush, the paper powder scraped by the brush is guided by the pair of side plates without scattering. Since it can collect reliably with the vacuum force of a paper dust collection means, the effect similar to the effect of Claim 1 can be acquired more reliably.

According to the invention of claim 3, since the connecting pipe is connected to the intermediate region of the brush, the paper dust scraped out by the brush is collected by the vacuum force without being scattered from the intermediate region surrounded by the brush. Therefore, the same effect as that of the second aspect can be obtained more reliably.

According to the invention of claim 4, since the auxiliary brush that comes into contact with both surfaces of the paper base material is provided inside the pair of side plates, paper dust attached to both ends of the paper base material can be scraped out. The paper dust collecting effect of the paper base material can be further improved.

According to the invention of claim 5, since the scraping means is formed in a ring shape with the brush contacting the one end portion of the paper base material, the effect similar to the effect of claim 1 and the paper such as a guide roller are provided. Since it can be spot-installed at a place where powder is likely to be generated, it is excellent in mobility and the paper dust collecting effect can be obtained more reliably.

In the first embodiment of the present invention, the belt-like packaging material 5 is continuously drawn out, the end portions 5a on both sides are vertically sealed S1 to form the cylindrical portion 6, and the content liquid N is passed through the filling pipe 7. 1 is a perspective view showing a state in which a paper dust removing device 8 is installed on a belt-shaped packaging material 5 in a paper container forming apparatus 1 in which a paper container 10 is formed by filling the container. It is sectional drawing which shows the structure of the strip | belt-shaped packaging material 5 in 1st embodiment of this invention. It is a top view which shows the structure of the paper dust removal apparatus 8 in 1st embodiment of this invention. It is a BB sectional view of Drawing 1 in a first embodiment of the present invention, and is a figure showing the state of scraping means 11 and connecting pipe 13 of paper dust. It is detailed sectional drawing which shows the state of the scraping means 11 of paper dust in 1st embodiment of this invention. It is detailed sectional drawing which shows the state of the scraping means 11 of paper dust in 2nd embodiment of this invention. In the third embodiment of the present invention, the paper dust scraping means 17 forms a brush 16 at the tip of the pipe 18 in an annular shape and is connected to the vacuum paper dust collecting means 12 by the connecting pipe 13. FIG. It is a perspective view which shows the state of the paper dust removal apparatus 35 comprised by the static elimination apparatus 31 and 32 which neutralizes the front side and back side of the packaging material 30, and the dust collector 33 which removes the static-removed paper powder in a prior art example. is there.

<First embodiment of the present invention>
Below, 1st embodiment of this invention is described based on FIGS.
<Configuration of paper dust removal device>

As shown in FIGS. 1 and 2, in a paper container forming apparatus 1, a belt-like packaging material 5 formed in a roll shape with a thermoplastic material layer 3 and a barrier layer 4 on a paper base 2 is not shown. It is paid out continuously. The belt-like wrapping material 5 is guided by a plurality of guide rollers (not shown), and while being lowered from above, the end portions 5a on both sides are brought together from both sides as indicated by the arrow A and vertically sealed by thermocompression bonding S1 to form a cylinder. A cylindrical portion 6 is formed, and the cylindrical portion 6 is continuously filled with the content liquid N via the filling pipe 7.

A paper dust removing device 8, which will be described in detail later, is installed on the belt-like packaging material 5 fed from the feeding machine. The paper container forming apparatus 1 is installed in a clean chamber (not shown).

The cylindrical portion 6 is hermetically sealed with a horizontal seal S2 at a position corresponding to one paper container, and the horizontal seal S2 is transversely cut and divided into two to continuously form a pillow-shaped original container 9. The Two pairs of flap portions 9a and 9b of the original container 9 are folded to form a top surface 10a and a bottom surface 10b by thermocompression bonding, and a paper container 10 having a rectangular parallelepiped shape is formed together with the other four sets of side surfaces 10c. . Note that the inner end 5a of the vertical seal portion S1 of the cylindrical portion 6 is covered with a strip tape (not shown) by thermocompression bonding, so that it does not touch the content liquid N.

In order to make it easy to mold the paper container 10 on the belt-shaped packaging material 5, folds (not shown) are formed in the vertical direction, the horizontal direction, and the oblique direction. By folding the folds, the rectangular top surface 10a, A rectangular parallelepiped paper container 10 having a bottom surface 10b and four side surfaces 10c is easily formed.

The configuration of the band-shaped packaging material 5 is formed by providing the paper base material 2 with the thermoplastic material layer 3 and the barrier layer 4. More specifically, an outer layer 3a, a paper base 2, an adhesive layer 3b, a barrier layer 4, and two inner layers 3c and 3d are formed in this order from the outer side to the inner side of the belt-like packaging material 5, and the outer side of the paper base 2 The design 2a is printed in advance on the side surface. The outer layer 3a and the inner layer 3d are formed of a low density polyethylene resin, the inner layer 3c is formed of a resin such as polyethylene or an ethylene copolymer, and the barrier layer 4 is formed of an aluminum foil or the like. In addition, the opening part for the content liquid extraction which is not shown in figure in the top surface 10a is formed by removing only the paper base material 2 of the strip-shaped packaging material 5.

The band-shaped wrapping material 5 is formed by cutting a wide wrapping material into a predetermined width by a cutting device (not shown), and paper dust generated at the time of cutting is collected by a dust collector (not shown). In some cases, paper dust remains and adheres to both end portions 5a. The paper powder of the paper base 2 includes resin powder such as polyethylene which is the thermoplastic material layer 3 and foil powder such as aluminum of the barrier layer 4. Therefore, in the following description, these are collectively referred to as paper. Expressed as powder.

As shown in FIGS. 3, 4, and 5, the paper dust removing device 8 for removing paper dust is a paper dust scraping means 11 that adheres to the end portion 5 a of the band-shaped packaging material 5, and the scraped paper. The powder collecting means 12 and the connecting pipe 13 connecting the scraping means 11 and the paper dust collecting means 12 are formed. The paper dust collecting means 12 is a vacuum type.

The scraping means 11 has a concave cross section, and a pair of side plates 14 and a bottom plate 15 covering the end 5a of the band-shaped packaging material 5 are formed with a length L and a depth W. The brush 16 is implanted on the bottom surface 15a of the bottom plate 15 with a length corresponding to 50% of the depth W = W / 2. The length, hardness, and flocking density of the brush 16 are appropriately set according to the material of the belt-like packaging material 5 and the tip of the brush 16 is in contact with the end portion 5a of the belt-like packaging material 5 at an overlap K, The overlap margin K is set so that paper dust can be efficiently removed within a range that does not physically affect the end portion 5a.

Here, the connecting pipe 13 is a space area surrounded by the pair of side plates 14 and the brush 16 at a position of approximately 90% (L1≈0.9L) from the upstream side, which is an intermediate area in the length L direction of the scraping means 11. Corresponding to S, the bottom plate 15 is disposed so as to reach the bottom surface 15a.
<Operation of paper dust removing device>

The paper powder adhering to the end portion 5a of the strip-shaped packaging material 5 can be surely scraped out by the brush 16 that contacts the end portion 5a of the strip-shaped packaging material 5. Since the scraped paper dust can be reliably collected by the vacuum of the paper dust collecting means 12, the paper dust is not mixed into the paper container 10. The connecting pipe 13 is located in a space region S surrounded by the pair of side plates 14 and the brush 16 at a position of approximately 90% (L1≈0.9L) from the upstream side which is an intermediate region in the length L direction of the pair of side plates 14. Since they are arranged correspondingly, the paper dust scraped out from the end 5a can be reliably removed to the paper dust collecting means 12 by the connecting pipe 13 without being dispersed.

For this reason, since there is no possibility that the paper powder scraped by the brush 16 floats and adheres to the band-shaped packaging material 5 again and mixes into the paper container 10, the influence of poor adhesion due to the influence of the paper powder does not occur. The work can be simplified because it is not necessary to monitor the adhesion state and mixing state of paper dust by visual inspection, sampling inspection, or the like. And since the operating rate of a filling device improves by the reduction of the trouble by paper dust, a yield becomes good and the cost of a paper container can be reduced. Since the structure of the paper dust removing device 8 is simple, it can be manufactured at a low cost. It can be configured with a small device, and can be installed in a narrow place with only spot piping.
<Second embodiment of the present invention>

The second embodiment of the present invention will be described with reference to FIG. 6, but the same reference numerals are used for the same configurations as those in FIG. 5, and redundant descriptions are omitted.

As shown in FIG. 6, in addition to the brush 16, an auxiliary brush 16 a that contacts the both surfaces 5 b of the paper substrate 5 is provided on the pair of side plates 14 with a width T = W / 4. For this reason, even when paper dust is wound around and adhered to both ends 5a of the packaging material 5, the auxiliary brush 16a can scrape out the paper dust and reliably discharge it with the connecting tube 13, so that the paper dust 10 is not mixed into the paper container 10. Furthermore, it can prevent reliably.
<Third embodiment of the present invention>

As shown in FIG. 7, the scraping means 17 has a brush 16 formed in an annular shape at the tip of a resin or metal pipe 18, and is connected to the vacuum type paper dust collecting means 12 by a connecting pipe 13. In this scraping means 17, in addition to the end portion 5a of the paper substrate 5, the brush 16 is brought into contact with a place where the paper dust is likely to be generated, such as a guide roller and a guide member, so that the paper dust is surely scraped and sucked in by vacuum. Can be removed.

Since it can be installed in a spot, it has excellent versatility, improved mobility, and a paper dust collecting effect can be reliably obtained. This scraping means 17 reliably and quickly prevents paper dust from being mixed into the paper container even when there is a place where the paper dust adheres to the edge 5a of the paper base 5 or the guide roller due to long-term production. it can. For this reason, troubles caused by paper dust are reduced, so that the yield of the filling device is improved and the operability is improved. Furthermore, since the device is simple, it is inexpensive, can be miniaturized, is easy to carry, and can be installed even in a narrow place, so it has excellent versatility.

The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are included in the present invention. It is. For example, the width T of the auxiliary brush 16a contacting the both surfaces 5b of the paper substrate 5 may be longer or shorter than W / 4, and is determined according to the situation. The connecting pipe 13 can also be arranged at the downstream end position in the length L direction of the pair of side plates 14. The paper dust removing device 8 may be configured to include a set of collecting means 12 corresponding to the set of scraping means 11. When the static eliminator is provided in combination with the present invention, the paper dust is easily separated from the paper base material, and thus the paper dust collecting effect is further improved.

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 manufacture of liquid food packaging.

5 Packaging material 5a End 8 Paper dust removing device 11 Scraping means 12 Collecting means 13 Connecting pipe 14 Side plate 15 Bottom plate 16 Brush K Stacking margin L Length S Spatial region W Depth

Claims (5)

A paper base material provided with a thermoplastic resin on both sides is formed into a cylindrical shape at the vertical seal portion, filled with the content liquid, sealed and cut at the horizontal seal portion to continuously form a pillow-shaped original container, and a pair of the original container A paper dust removing device that is provided in a paper container forming device that forms a top surface and a bottom surface by folding a flap portion and thermocompression bonding,
In this paper dust removing device, a paper dust scraping means adhering to both ends of the paper base and a scraping paper dust collecting means are connected via a connecting pipe, and the scraping means are both ends of the paper base. The paper dust removing device is characterized in that the paper dust collecting means is a vacuum type with a brush in contact with the brush. 2. The paper dust removing device according to claim 1, wherein both ends of the paper base are covered with a pair of side plates together with the brush. 3. The paper dust removing device according to claim 1, wherein the connecting pipe is connected to an intermediate region of the brush. 4. 4. The paper dust removing device according to claim 2, further comprising an auxiliary brush that contacts both sides of the paper base material inside the pair of side plates. 5. 2. The paper dust removing apparatus according to claim 1, wherein the scraping means is formed in a ring shape with a brush that contacts across one end of the paper base.