JP2003170917A - Method for controlling kind of packaging bag, and packaging bag and packaging device for performing the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for automatically classifying a packaging bag being different in kind display but closely similar in pattern when it is mixed in a manufacturing step without impairing the appearance as a commodity of a product to be packaged by the packaging bag. <P>SOLUTION: A kind identification marker is printed on a part which is exposed outward in the manufacturing step of the packaging bag and hidden by at least one of components of the packaging bag when the bag is completed. The marker is scanned during the manufacturing step to automatically classify a bag in different kind. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag type management method and a packaging bag and apparatus suitable for carrying out the method, and more particularly, for example, the same (major category) product group belonging to the same product group. A method for preventing a packaging bag for a product, which is printed with a very similar pattern in size / shape, but has a different (small classification) type designation, during the manufacturing process, and a method for implementing the method. The present invention relates to a packaging bag and a device used for.

[0002]

2. Description of the Related Art Conventionally, type 1 paper bags for packaging government-purchased rice have been manufactured in the size and shape stipulated by the inspection standard.
The printed patterns are also very similar, and only the display of the place of origin, brand, etc. is slightly different. The same tendency is found in packaging bags for petrochemical products (for example, synthetic resin pellets), and in many cases, if the same type of resin is used, the same product name will be attached and very similar patterns printed with the same dimensions. Only the grade code and lot number display differ slightly depending on the shape.

On the other hand, the manufacturing process of the heavy wrapping paper bag is roughly divided into a printing process, a cylinder making process, and a bottom closing process. Supply of print winding from the printing process to the cylinder making process, and the cylinder making process to the bottom closing process. It has been necessary to confirm the product classification of the above-mentioned subclassifications each time the tubular body is supplied to the process. However, once the packaging bags with different qualities as described above are mixed in the packaging bag group with proper product type labeling, products with different contents from the labeling are shipped to the market from the content filling process. Could be done.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the problem is to make a bag if a bag of a different type is mixed in due to a lack of confirmation by the operator. It is about finding and eliminating before shipping from the factory.

[0005]

In order to solve the above-mentioned problems, the method of the present invention is a method for separating mixed packaging bags of different types during the manufacturing process of the packaging bag, wherein the type identification is made on the packaging bag. Simultaneously with the design of the packaging bag, the sign is exposed outward during the manufacturing process, and at the time of completion, a step of printing it on a portion that is covered by at least one component of the packing bag, and the printed sign. A step of scanning, a step of transmitting the selection signal of the same shape or a different shape by collating the scanned mark with a kind identification mark stored in advance in a comparator, and receiving the selection signal of the different shape, and a finished product And the step of operating the sorting device to remove the product.

Further, in order to carry out the above-mentioned method of the present invention, the packaging bag of the present invention is exposed outward in the manufacturing process of the packaging bag, and when it is completed, it is covered with at least one constituent part of the packaging bag. It is characterized in that a type identification mark is printed on the hidden portion.

Further, in order to carry out the above-mentioned method of the present invention, the apparatus of the present invention covers at least the scanner means for scanning the identification mark printed on the packaging bag and the scanned identification mark with at least one component of the packaging bag. A covering means for hiding, a comparator means for transmitting an operation signal transmitted from the scanner means to a predetermined product type identification mark stored in advance and transmitting a selection signal of the same shape or a different shape, and the selection signal of the different shape. And a sorting means for eliminating packaging bags of different types based on the above.

In the packaging bag of the present invention, the position where the type identification mark is printed is, in the case of a hexagonal bottom valve bag or a hexagonal bottom opening bag, either the upper edge or the lower edge of the outermost layer of the tubular body. It may be in the vicinity, and the same applies to the case of a sewing machine sewing bag. Further, in the case of a government-purchased domestically produced rice type 1 paper bag, the product type identification mark can be provided in the outermost folded portion formed between two slits provided at the opening end of the outermost layer. In the case of a pinch bag, the printed portion of the closed end is preferably located at the outermost layer of the wall surface on which the closing flap is not formed, near the center of the bag in the longitudinal direction along the bottom fold line.

Further, the scanner means of the apparatus of the present invention is a hexagonal bottom valve or a bottom-bottomed bottomer, a pinch bottomer, a single stitch or double-stitched conveyor sewing machine, or a paper band sticker used for finishing a domestically purchased domestic rice type 1 paper bag. A bottom folding device, a crepe tape hanging device, or an opening flap folding device for fixing a paper band, which can be mounted on the installation device, can be used as the covering means of the device of the present invention. If a defective bag removing mechanism is not provided in the completed bag discharging device of the above machines, an appropriate automatic removing mechanism is connected downstream.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.

FIG. 1 is a plan view of the packaging bag identifying step according to the first embodiment of the present invention, FIG. 2 is a completed view of the packaging bag of FIG. 1, and FIG. 3 is an apparatus for identifying the packaging bag of FIG. It is a schematic perspective view, and in order to make the drawing easier to see, an adhesive applying device, a guide for bending the outer layer flap at the opening end for fixing the paper band,
Illustration of a cutter that cuts the plate and the paper band is omitted. 4 is a plan view of the packaging bag identifying step of the second embodiment of the present invention, FIG. 5 is a completed view of the packaging bag of FIG. 4, and FIG. 6 is a packaging bag of the third embodiment of the present invention. FIG. 7 is a plan view of the identification step, FIG. 7 is a completed view of the packaging bag of FIG. 6, and FIG.
FIG. 9 is a plan view of the packaging bag identifying step of the fourth embodiment of the present invention, and FIG. 9 is a completed view of the packaging bag of FIG.

In the drawings, reference numeral 1 is a bag, 1a is a fold, 2a is a closed end, 2b is an open end, 2c is a valve end, 3 is a slit, 4a, 4b, 4c and 4d are flaps, and 5 is Paper band, 6 is an identification mark, 7 is a valve, 8 is a bottom paper, 9 is a bottom folding line, 10a is a sewing part of sewing, 10b is a crepe tape, 11a and 11b are adhesives, 12a is a front conveyor, 12b is A rear (discharge) conveyor, 13 is a scanner, 14 is a cutting position, 15 is a rotary encoder, and 16 is a bridge.

The packaging bag shown in FIG. 1 and FIG. 2 is a "type 1 paper bag (paper band knotting method)" defined in the "inspection standard for government-purchased domestic rice and wheat packaging" based on the Agricultural Products Inspection Act. In FIG. 1, the identification mark 6 is printed in advance on the surface of the outer layer paper at the open end 2b of the one bag wall of the bag body 1 together with a subclassification indication of the variety of rice grains to be packaged, and the mark is a scanner means. Is ready for scanning. The outer layer paper at the open end of the bag wall is provided with slits 3 along both side edges of the bag body, and a flap 4a is formed between the slits. The paper band 5 is preferably adhered to the wall surface of the bag so that the upper end thereof is located at the lower end of the slit 3, and the flap 4a provided on the outer layer paper is bent on the bag wall along the upper edge of the paper band. When adhered, the identification mark 6 is covered and hidden from the outside.

The device shown in FIG. 3 is a known device for attaching the paper band 5 to the opening end of the bag, a scanner 13, a comparator means, and a bridge 16 which is a separating means for excluding different types of packaging bags. And a rotary encoder 1 for adjusting the timing of transmitting the variant signal (or rejection signal) transmitted by the comparator to the separating means.
5 and a rear conveyor 12b for discharging only bags of the same type after separating bags of different types.

When the bag 1 is transferred to the apparatus shown in FIG. 3, first, in the area A, the identification mark 6 is scanned by the scanner 13. The scanning signal is sent to a comparator and collated with a predetermined signal stored in advance in the comparator. If the two signals do not match, a defect signal is emitted.

On the other hand, the adhesives 11a and 11b are applied to the bag itself in parallel with the opening edge 2b in the form of two strips, and the paper band 5 is placed on the adhesive strip 11b.
The paper band is adhered to the wall surface of the bag body. Then, in the region B, all the layers of the front and rear walls of the opening 2b of the bag body 1 are folded back together along the upper edge of the paper band 5 toward the center of the bag body, whereby the flap 4 of the bag body is folded. The paper band 5 is fixed by being bonded to the front (upper) wall surface.

The bag body 1 moves to the region C, where the paper layers of the folded front and rear walls are guided by a guide (not shown) to be folded, except for the flap adhered to the front (upper) wall surface of the bag body. It is raised in the position before it was pushed. On the other hand, the paper band is also cut at the position 14 by a cutting means (not shown) such as a rotary knife.

When the bag body 1 is a different type of packaging bag, the bridge 16 turns downward in response to the operation command based on the defect signal, and moves the bag body downward between the front conveyor 12a and the rear conveyor 12b. Exclude. The encoder 15 serves to adjust the time difference from the scanning of the identification mark 6 by the scanner 13 to the removal by the bridge 16 by a known method.

The packaging bag shown in FIGS. 4 and 5 is a hexagonal bottom valve bag in which a filling valve 7 is provided at one corner of one end 2c. In FIG. 4, the identification mark 6 is printed in advance on the surface of the outermost layer paper at the bottom end 2a of the bag together with other patterns. This bag is processed into a state shown in FIG. 5 by a well-known bottomer (bottom sticking machine), but the bottom closing flap 4c at the bottom 2a is along the bottom folding line 9 and is already folded on the other side. When it is folded and glued on the flap 4b,
The identification mark 6 is hidden under it and cannot be seen from the outside.
Further, when the bottom backing paper 8 is stuck on both bottom surfaces as shown in FIGS. 4 and 5, the identification mark 6 is placed on either of the flaps 4b and 4c.
Even if is printed, it can be covered with the bottom paper 8.

Automatic classification of different types of bags of this type is
During the bottom attaching step, the scanner 13 described above in the well-known double bottom attaching valve bag bottomer, the comparator means, the bridge 16 which is a means for excluding packaging bags of different types, the rotary encoder 15, and the bags of the same type. This can be done by attaching a rear conveyor 12b that discharges only the discharge. The operation of these devices is the same as that of the first embodiment, and detailed description thereof will be omitted.

However, a commercially available double-bottomed valve bag bottomer is provided with an automatic excluding device for excluding a tubular body that has been fed two sheets or obliquely fed, following the automatic tube feeding device. It is also possible to arrange the scanner 13 at the exit of the cylinder device and use this device for eliminating the two-sheet feed / oblique feed cylinders to eliminate the cylinders of different kinds before they are attached to the bottom.

6 and 7 show a so-called "pinch type" open bag with pleats, and the identification mark 6 is printed on the outermost layer of the closed end 2a along the bottom fold line 9. When the bottom closing flap 4c is folded along the bottom folding line and adhered to the front (upper) wall of the bag body, it is covered by the flap 4c and cannot be seen from the outside. Different types of bags of this type are automatically sorted when the first and second embodiments are described in the known pinch / botomer during the bottom attaching process.
Although the enumerated additional means is attached, the operation thereof is not different from those of the embodiments, and thus detailed description thereof will be omitted.

The packaging bag shown in FIGS. 8 and 9 is a perforated sewing machine sewing bag. As shown in FIG. 8, the identification mark 6 is provided at a portion along the edge of the tubular body that is the closed end 2a of the bag body.
It is printed in advance on the surface of the outermost layer paper together with other patterns. The identification mark 6 is covered with the crepe tape 10b when the end portion is closed by sewing with the sewing machine (10a) and cannot be seen from the outside.

In the automatic sorting of different types of bags of this type, during the sewing process of the sewing machine, the additional means listed when the first and second embodiments are described is attached to the known one-side stitch conveyor sewing machine. However, since the operation is the same as that of these embodiments, detailed description will be omitted.

[0025]

As described above in detail, according to the present invention, even if bags of different kinds are mixed in the packaging bag being manufactured,
It can be automatically removed before it is shipped from the bag factory. Further, because of the implementation of the present invention, the identification mark printed on the packaging bag is covered by at least one component thereof when the packaging bag is completed, which impairs the appearance of the product packaged in the bag as a product. There is no such thing.

[Brief description of drawings]

FIG. 1 is a plan view in a packaging bag identifying step according to a first embodiment of the present invention.

FIG. 2 is a completed view of the packaging bag of FIG.

3 is a schematic perspective view of an apparatus for identifying the packaging bag of FIG. 1. FIG.

FIG. 4 is a plan view in a packaging bag identifying step according to a second embodiment of the present invention.

FIG. 5 is a completed view of the packaging bag of FIG.

FIG. 6 is a plan view in a packaging bag identifying step according to a third embodiment of the present invention.

7 is a completed view of the packaging bag of FIG.

FIG. 8 is a plan view in a packaging bag identifying step according to a fourth embodiment of the present invention.

9 is a completed view of the packaging bag of FIG.

[Explanation of symbols]

1: bag body, 1a: fold, 2a: closed end, 2b: open end, 2c: valve end, 3: slit, 4a, 4b, 4
c, 4d: flap, 5: paper band, 6: identification mark,
7: valve, 8: bottom pad, 9: bottom folding line, 10a: sewing part, 10b: crepe tape, 11a, 11
b: adhesive, 12a: front conveyor, 12b: rear (discharge) conveyor, 13: scanner, 14: cutting position, 1
5: rotary encoder, 16: bridge.

Claims (3)

[Claims] 1. A method for separating mixed-type packaging bags of different varieties during the manufacturing process of the packaging bag, wherein a type identification mark is provided on the packaging bag at the same time as the packaging bag design and outside during the manufacturing process. And a step of printing on a portion of the packaging bag which is exposed toward the side of the packaging bag and covered with at least one component of the packaging bag, a step of scanning the printed marker, and the comparator storing the scanned marker in advance. It includes a step of transmitting a selection signal of the same shape or a different shape by collating with the kind identification mark set aside, and a step of receiving the selection signal of the different shape and operating a sorting device of the finished product to eliminate the product. , A method to automatically sort different types of packaging bags mixed during the manufacturing process. 2. In order to carry out the method according to claim 1, the product is exposed to the outside in the manufacturing process of the packaging bag, and when it is completed, it is cultivated in a part that is covered by at least one constituent part of the packaging bag. A packaging bag printed with an identification mark. 3. An apparatus for carrying out the method according to claim 1, wherein at least a scanner means for scanning an identification mark printed on the packaging bag and at least one constituent part of the packaging bag for the scanned identification mark. Covering means for covering with, a scanning signal transmitted from the scanner means is compared with a predetermined type identification mark stored in advance, comparator means for transmitting a selection signal of the same shape or a different shape, and the different shape A different type automatic sorting apparatus including a sorting means for eliminating packaging bags of different types based on a selection signal.