JPH11198904A - Filling and packaging apparatus for solid matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent breakage of a packaging film on filling by dropping of solid matters and also to prevent occurrence of pinholes by a method wherein a flexible member covering approximately the entire area at the inner wall surface of the packaging film on a part extending from the lower end of a cylindrical mandrel to a transverse sealing mechanism is provided at the lower end of the mandrel. SOLUTION: On packaging solid matters such as snacks, a sheet-shaped film 12 is wound firstly round the outer circumferential face of a cylindrical mandrel 14 and after the film is formed into a cylindrical film 16 with back sealing made on feeding out of the sheet-shaped film 12, transverse sealing is made with a transverse sealing mechanism and thereby a bag-shaped film having a packaging bag lower end is formed. Under such state, solid matters are filled in a specified quantity into the bag-shaped film through a measuring hopper 27 and a filling passage 24. As a flexible member 30 is provided at a lower end opening 28 of the cylindrical mandrel 14, extending to a bag making means 20 for the cylindrical film, the solid matters are accumulated at the bottom of the bag-shaped film without choking of the inner wall surface of the bag-shaped film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid filling and packaging apparatus, and more particularly, to a solid filling and packaging apparatus capable of preventing breakage of a packaging film and occurrence of pinholes caused when a solid is dropped and filled. About.

[0002]

2. Description of the Related Art Conventionally, various snack products in which corn snacks, potato chips and the like are stored in a predetermined amount in a packaging bag have been sold. These snack products usually drop the produced snack from a hopper into a cylindrical mandrel having a height of about 1 to 2 m, which is installed vertically,
It is manufactured by filling the packaging bag by a fixed amount and sealing the filling port of the packaging bag. For this reason, there is a problem that a snack having a pointed portion, for example, a triangular pyramid-shaped snack, a snack crack, or the like directly collides with the packaging bag, thereby damaging the packaging film or generating a pinhole. In particular, when filling a snack in a relatively high temperature state immediately after production, or when the packaging film is thinned, such a problem becomes conspicuous. As a solution to such a problem, there is known a means for externally cooling a packaging film in a filling and storing portion of a snack in a relatively high temperature state.

[0003] The same problem as described above has also arisen when filling not only snack products but also chicken with bones into a packaging bag.
Filling port of the vertical bag making and filling machine, the shape along the inner surface from the upper end to the lower part of the bag made by the packaging machine,
The lower part of the bag is horizontally sealed on a horizontal sealer which is provided with a pair of skirt portions before and after the horizontal seal at the lower end of the bag and which can be opened and closed after being installed below the filling port. There is known a vertical bag-making filling and packaging machine (Japanese Utility Model Laid-Open No. 6-22204) provided with a cushioning support portion for supporting from both sides.

[0004] However, when a means for cooling the above-mentioned packaging film from the outside is provided, new capital investment and a complicated temperature control mechanism are required. On the other hand, even if the cooling means is provided, when a relatively thin packaging film is used, there is a possibility that the effect of reliably preventing damage to the packaging film and occurrence of pinholes cannot be sufficiently obtained.

Further, in the above-described conventional vertical bag making and filling machine, a skirt portion for protecting the inner surface of the bag from a drop impact of the article to be packaged is provided, but the skirt portion is slightly along the inner surface of the bag. It is molded of plastic or the like so as to be curved. For this reason, it is difficult to extend the skirt portion to the lowermost end of the packaging bag, and even if the skirt portion is extended to a position near the lowermost end of the packaging bag, the gap through which the article to be packaged passes. Therefore, there is a problem that the article to be packaged is clogged between the pair of skirt portions. In particular, when the packaged object is relatively light, such as a snack, such a clogged state becomes remarkable. In addition, there is a possibility that the snack is damaged by a direct hit on the skirt portion.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a simple mechanism for preventing solid matter from being broken and clogging in a cylindrically sealed packaging bag before dropping and filling solid matter. An object of the present invention is to provide a solid-filled packaging apparatus capable of preventing the resulting packaging film from being damaged and generating pinholes.

[0007]

According to the present invention, a flexible member is provided at the lower end of a cylindrical mandrel so as to cover substantially the entire inner wall surface of the packaging film at a portion extending from the lower end to the horizontal sealing mechanism. It has been completed based on the knowledge that the above objectives can be achieved, and the gist of the
A cylindrical mandrel provided in the vertical direction for winding the packaging film around the outer periphery, a packaging film delivery mechanism for hanging the packaging film along the cylindrical mandrel, and a vertical seal for sealing the portion of the packaging film wound around the outer periphery of the cylindrical mandrel and polymerized. A solid filling and packaging apparatus comprising a mechanism, a hopper for supplying solid matter at an upper end of the cylindrical mandrel, and a horizontal sealing mechanism at a predetermined distance from a lower end of the cylindrical mandrel. In the solid material filling and packaging apparatus, a flexible member that covers substantially the entire inner wall surface of a packaging film at a portion from a lower end of the cylindrical mandrel to a horizontal sealing mechanism is provided at a lower end of the cylindrical mandrel.

[0008]

In the solid material filling and packaging apparatus having the above-mentioned structure, a sheet-like film is wound around the outer peripheral surface of a cylindrical mandrel to form a cylindrical shape, and a flexible member is provided at the lower end of the cylindrical mandrel. Therefore, it is possible to extend the flexible packaging member along the inner wall surface of the packaging bag to the lowermost end thereof while ensuring a sufficient gap through which the solid material passes. Therefore,
The flexible film can cover substantially the entire inner wall surface of the packaging film at the portion extending from the lower end of the mandrel to the horizontal sealing mechanism. As a result, the solid film is not damaged, and without being clogged in the unsealed packaging bag formed in the cylindrical shape, the damage of the packaging film caused at the time of the solid material falling and filling,
The occurrence of pinholes can be prevented.

BEST MODE FOR CARRYING OUT THE INVENTION

In the following, snacks are taken as examples of solids.
Embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, a solid filling and packaging apparatus 10 includes a tubular mandrel 14 for forming a sheet film 12 such as polyethylene into a tubular shape, a tubular film delivery mechanism 18 for delivering a tubular film 16 in a longitudinal direction, and , Tubular film 1
A cylindrical film bag making means 20 for shaping 6 into a bag shape;
And a vertical sealing mechanism (vertical sealer 22) for sealing the back of the sheet-like film 12. The cylindrical mandrel 14 is formed of a vertically extending cylinder having a circular cross section, and a solid material filling path 24 is formed therein.
A weighing hopper 27 is provided at the upper end opening 26, and the solid matter measured in a predetermined amount is freely dropped from the upper end opening 26 to fill the cylindrical film 16 whose lower part is sealed via the lower end opening 28. ing. The funnel-shaped weighing hopper 27 covers the entire cross section of the upper end opening 26,
A conical shutter member that can be raised and lowered is installed,
By raising the shutter member and providing a fixed gap between the weighing hopper 27 and the upper end opening 26, a predetermined amount of solid matter is supplied from the weighing hopper 27 to the cylindrical mandrel 14.

On the other hand, the lower end opening 28 of the cylindrical mandrel 14
The flexible member 30 is installed so as to extend from the lower end opening 28 of the cylindrical mandrel to the portion extending to the cylindrical film bag making means 20, that is, to the portion reaching the lowermost end of the cylindrical film 16 to be formed. ing. Such a flexible member 30
Since it is made of a relatively soft material, it is naturally formed in a shape along the inner wall surface of the curved packaging film from the lower end opening 28 of the cylindrical mandrel to the cylindrical film bag making means 20. In addition, by providing a cut in the flexible member 30, it is easy to form the curved shape, and more preferably, the cut is formed in a strip shape. The material of the flexible member 30 is preferably a material having flexibility such that it can be naturally formed in the above-mentioned shape, and furthermore, a material excellent in breakage resistance, cleaning property, heat resistance and the like, for example, a Teflon sheet, a nylon sheet Etc. can be used.
The thickness of the flexible member 30 depends on the weight of the packaged object,
What is necessary is just to set suitably according to a shape and the height of a cylindrical mandrel.
It is preferably about 1 mm to 0.2 mm. If the thickness of the flexible member is smaller than the above range, it is easily broken,
On the other hand, when the thickness is larger than the above range, the flexibility is lowered, and it is difficult to form naturally into the shape along the inner wall surface of the packaging film, which is not preferable.

Next, the cylindrical film feeding mechanism 18
A known drive motor 42, a pair of rollers 44, one of which is a drive roller connected to the drive motor 42, are wound around the pair of rollers 44 and contact the outer surface of the tubular film 16 along the longitudinal direction. The tubular film 16 wound around the outer peripheral surface of the tubular mandrel 14 is intermittently fed out from the lower end opening 28 of the tubular mandrel 14 in the longitudinal direction.
The tubular film bag making means 20 includes a horizontal sealing mechanism including a pair of packaging bag lower end sealers 33 and a packaging bag upper end sealer 34 which are arranged to face each other with the cylindrical film 16 interposed therebetween; Cutter 29 provided between
Consists of

The feeding of the solid material by the measuring hopper 27, the feeding of the cylindrical film 16 by the cylindrical film feeding mechanism 18, the sealing of the cylindrical film 16 by the cylindrical film bagging means 20, and the cutting of the bag film by the cutter 29. The timing of cutting or the like is performed by known computer control, for example, according to a program input in advance.

The vertical sealer 22 is provided at a predetermined position in the longitudinal direction on the cylindrical mandrel 14 in order to weld and seal the both ends of the sheet film 12 wound around the cylindrical mandrel 14. It is configured to apply heat toward the inside of the. Therefore, inside the cylindrical mandrel 14, an inner cylinder (not shown) which is disposed substantially concentrically with the cylindrical mandrel 14 and extends in the longitudinal direction from the upper end opening 26 to the vicinity of the lower end opening 28 is provided. May be shielded to some extent to protect the solid passing through the inner cylinder from the heat.

Reference numeral 48 denotes a bobbin of the sheet-like film 12, and a guide roll 50 and a dancer roller 52 are provided.
The sheet-like film 12 is fed out, sent out to the former 54, and formed into the cylindrical film 16 from the former 54 to the outer surface of the cylindrical cylinder 14.

Solid filling and packaging apparatus 1 having the above configuration
The operation of the zero will be described below with reference to FIG. First, the sheet-like film 12 is attached to the cylindrical film 1.
6, the sheet film 12 is wound around the outer peripheral surface of the cylindrical mandrel 14. The wound sheet-like film 12 is turned into a tubular film 16 by sealing the back when the sheet-like film 12 is sent out. Next, in order to further form the cylindrical film 16 into a bag shape, the film is laterally sealed by a horizontal sealing mechanism to form a bag-like film C having a lower end portion of the packaging bag, and at the same time, an upper end portion of the bag-like film D is formed. You.

Next, the solid matter is transferred from the weighing hopper 27 through the upper end opening 26 of the cylindrical mandrel 14 to the filling path 24.
After that, a predetermined amount is filled into the bag-like film C. The solid material does not come into contact with the inner wall surface of the bag-like film and does not become clogged on the inner wall surface of the bag-like film.
Along the bottom of the bag-shaped film 36.

Next, the tubular film 16 is delivered by the tubular film delivery mechanism 18 along the longitudinal direction of the tubular mandrel 14. The length in the longitudinal direction of the bag can be adjusted by adjusting the amount of one delivery. In addition, since the solid matter accumulated in the filling path 24 before the next bag B is formed is filled into the bag-shaped film C during one sending-out, the solid matter filled in each bag-shaped film is filled. Can be kept constant. Next, the upper end of the bag-shaped film C is formed at the same time as the lower end of the bag-shaped film B is formed by the horizontal sealing mechanism, and the bag-shaped film C is formed by the cutter 29.
Is cut off to produce a finished product 60 in the form of a pillow package. By repeating the above cycle, it is possible to continuously produce a finished product 60 without breakage and pinholes in a packaging film in which a bag-like film is filled and sealed with a certain amount of solid matter.

[0018]

According to the present invention, by a simple mechanism, a solid film is prevented from being broken and clogged in a cylindrically formed packaging bag before sealing, and a packaging film generated when the solid material is dropped and filled. The present invention can provide a solid-filled packaging apparatus that prevents breakage of a sheet and generation of pinholes.

[0019]

[Brief description of the drawings]

FIG. 1 is a schematic view of a solid filling and packaging apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view illustrating a solid filling operation according to the embodiment of the present invention.

[Explanation of symbols]

 a solid material 10 solid material filling and packaging apparatus 12 sheet film 14 cylindrical mandrel 16 cylindrical film 18 cylindrical film feeding mechanism 20 cylindrical film bag making means 22 vertical sealer 24 filling path 26 upper opening 27 hopper 28 lower opening 29 cutter Reference Signs List 30 flexible member 33 lower end sealer of packaging bag 34 upper end sealer of packaging bag 36 bottom of bag-shaped film 42 drive motor 44 roller 46 endless belt 48 bobbin 50 guide roll 52 dancer roller 54 former 60 pillow packaging finished product

Claims (3)

[Claims] 1. A cylindrical mandrel provided in a vertical direction for winding a packaging film around an outer periphery, a packaging film delivery mechanism for hanging the packaging film along the cylindrical mandrel, and a packaging film portion wound and polymerized around the outer periphery of the cylindrical mandrel. A vertical hopper for supplying solid matter is provided at the upper end of the cylindrical mandrel, and a horizontal seal mechanism is provided at a predetermined distance from the lower end of the cylindrical mandrel. In the solid filling and packaging apparatus, a flexible member that covers substantially the entire inner wall surface of the packaging film at a portion from the lower end of the cylindrical mandrel to the horizontal sealing mechanism is provided at the lower end of the cylindrical mandrel. Solid filling and packaging equipment. 2. The solid filling and packaging apparatus according to claim 1, wherein a cut is provided in the flexible member. 3. The solid filling and packaging apparatus according to claim 2, wherein the flexible member is formed in a strip shape provided with cuts.