JP4257637B2 - Cylindrical tube for winding synthetic resin tube body and method for manufacturing the cylindrical tube - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a cylindrical tube for winding a tube body for a rice bag utilizing scrap generated during the molding of a synthetic resin tube body, and a method for manufacturing the cylindrical tube for winding a tube body for a rice bag. In each process of molding, printing, inspection, and bag making, the scrap portion that is always generated is pelletized, and this is used to form a cylindrical tube of plastic for winding the tube body.
[0002]
[Prior art]
Generally, this type of cylindrical tube for winding a tube body uses a paper tube, and the paper tube remaining after the bag tube body once wound up is recovered and repeatedly used. On the other hand, in forming the tube for a rice bag, there are processes as in the following paragraphs “0003” to “0007”.
[0003]
"Acceptance of materials" Arrival of materials → order specification confirmation (quantity confirmation) → warehouse storage → transportation.
[0004]
"Making of tube body raw material" Raw material creation → Engaged in instructions (raw material specifications, raw material confirmation, blending ratio) → Switch from previous work → Dimension confirmation (thickness, size) → Production of raw material → Shelf Storage → transport.
[0005]
“Tube body printing process” Printing creation → Engage in instructions (original fabric color, thickness, width) → Unravel → Unravel state check (removal of severe wrinkles) → Print confirmation (pattern misalignment, color difference, blur) → Start printing on original fabric → Check printing (pattern misalignment, color difference, faint) → Store on pallet → Transport.
[0006]
“Inspection of the tube body” Inspection work → Engage in instructions (original color, thickness, width) / print confirmation (pattern misalignment, color difference, faint) → Store on pallet → Ship.
[0007]
“Bag making from the tube body” Work to print on the side of the tube body corresponding to the side of the bag making → Confirmation of the printed state on the side of the tube body → Storage in the pallet → Bag making work → Confirmation of seal condition (dimension confirmation) → Packaging → Store on pallet.
[0008]
[Problems to be solved by the invention]
However, in each of the above-described rice bag forming steps, a loss that becomes scrap occurs. That is, a total of 14 locations, 2 locations in the “raw fabric forming process”, 6 locations in the “raw fabric printing process”, 2 locations in the “raw fabric inspection”, and 2 locations in the “bag making process”. Yes.
[0009]
In addition, even a product that has completed a series of processing steps or a bag making process for a rice bag tube body may become unusable due to a design change or display change at the delivery destination and may be handled as a scrap. In such cases, the amount of scrap becomes large, and in the old days, even printed bags with different purposes were sometimes diverted as trash bags, but now they are diverted due to various regulations. Is no longer possible, and as a result, it is discarded.
[0010]
On the other hand, the cylindrical tube that is the winding shaft of the tube body for rice bags is made of paper with laminated kraft paper, etc., so it is necessary to keep the strength by closing both ends of the paper tube with caps to give load resistance. there were. Moreover, since it is made of paper, it is unsuitable for washing after being collected, and there is a problem in terms of hygiene as a winding cylinder of a tube body for rice bags.
[0011]
[Means for solving problems]
Therefore, the present invention is provided to solve these conventional problems and achieve the object of the invention.
[0012]
A first aspect of the present invention is a process for forming a tube body for a bag body by inflation molding in a cylindrical tube for winding a tube body for a rice bag utilizing a defective product generated during the molding of a synthetic resin tube body, and a molded bag body Only the scrap of the tube body generated in the process of printing on the tube body, the inspection process of the printed tube body and the bag making process of the inspected printed tube body is pelletized and extruded A cylindrical body for winding a tube body for a rice bag having a diameter of 90.0 to 95.0 mm, a thickness of 7.0 to 10.0 mm, and a length of 150.0 to 500.0 mm is integrally formed.
[0013]
The second invention is the manufacturing method of a cylindrical tube for the winding of the synthetic resin tube body, a loss which occurs in the molding-raw tube printing, inspection or bag process of raw tube body in the rice bag formed shape Only the scrap is collected and pelletized, and this is put into an extrusion molding machine. The cylindrical body for winding the tube body for rice bags set to a diameter of 90.0 to 95.0 mm, a wall thickness of 7.0 to 10.0 mm, and a length of 150.0 to 500.0 mm Are integrally molded.
[0014]
【Example】
The Example of the part which generates the molding material of the cylindrical tube for tube body windings for rice bags concerning the present invention is described.
[0015]
1 and 2, reference numeral 1 denotes a molding machine body in a raw material molding process, 2 denotes a molding machine material charging hopper, 3 denotes a resin material extrusion screw, 4 denotes a die for feeding and feeding the resin material to the next process, 5 Is a printing machine for printing on a tube body for rice bags, and includes a plurality of printing sections C1, C2,... Cm, Cn. 4 and 5, 6 is a rice bag tube loosening machine, 7 is a rice bag tube winder, 8 is a pinch roller, 9 is a rubber roller, 10 is a traverse, and 11 is a rice bag tube body. It is a winder.
[0016]
In FIG. 6, 13 is an extrusion molding machine main body for forming a long cylindrical body for winding a tube body, 14 is a scrap feeding hopper due to loss generated in the process of processing the tube body for rice bags and the bag making process, and 15 is a resin. An extrusion screw 16 for the material is a molding die for the long cylindrical body A ′. In FIG. 7, A is a cylindrical tube for winding a tube body for rice bags processed by the extrusion molding machine 16, and there are various sizes. As an example, a diameter R = 90.0 to 95.0 mm, a wall thickness T = The length is 7.0 to 10.0 mm, and the length L is set to 150.0 to 500.0 mm.
[0017]
[Location of material loss in the manufacturing process of tube body for rice bags]
The material loss that is the material of the cylindrical body A for taking up the tube body for rice bags has been changed in design and display in the "molding", "printing process", "inspection", "bag making" processes and customers. Occurs when it becomes unusable.
[0018]
In the “raw fabric forming step (FIG. 8)”, the resin material is put into the hopper 2 of the molding machine 1, and the resin material is transferred and supplied by the extrusion screw 3. In the original fabric creation 11, the first loss (a) occurs in the work of the instruction sheet 12 such as the raw material specification, the raw material confirmation, and the blending rate. Next, the resin material is transferred and supplied to the die 4 by the extrusion screw 3. At this time, a second loss (buzzing loss (b)) occurs due to switching from the previous work. When producing the original fabric with the die, a third loss (c) occurs in the dimension confirmation 13 such as the thickness, width, size, and the like. Further, a fourth loss (dimension loss (d)) occurs after the raw fabric creation start 14. The product excluding the defects is stored in the shelf 15 and then transferred to the printing process by the transporter 16.
[0019]
In the “printing process (FIG. 9)”, printing is started by the print creating unit 51 that reaches a plurality of printing units C ₁ , C ₂ ,. After that, a fifth loss (e) occurs in the work of the instruction sheet 52 for the original color, thickness, width, and the like. Further, in the next unraveling operation by the unraveling machine 6, the unraveling state is confirmed by the confirmation unit 61 to remove severe wrinkles, and a sixth loss (unraveling loss (f)) also occurs at this time. Here, a seventh loss (matching loss (g)) also occurs. Subsequently, an eighth loss (initial registration loss (h)) occurs in the confirmation operation by the print confirmation unit 53 such as pattern misalignment, color difference, and fading. Then, when the printing operation is started by the printing start unit 54, a ninth loss (connection loss i)) occurs. In addition, a tenth loss (printing loss (j)) occurs in the confirmation work in the print confirmation unit 55 such as pattern misalignment, color difference, and fading. The product excluding the defects is stored on the pallet 62 and then transferred to the inspection process by the transporter 63.
[0020]
In the “inspection process (FIG. 10)”, after engaging in the instruction 72 of the original fabric color, thickness, width, etc. from the inspection work in the inspection section 71, in the print confirmation work such as pattern misalignment, color difference, fading, An eleventh loss (printing loss (k)) occurs. Further, a twelfth loss (inspection loss (l)) occurs from the confirmation work in the print confirmation unit 73. The product excluding defects is stored in the pallet 72 and then transferred to the bag making process. In this case, when bag making is not required, the product is shipped from the shipping unit 73.
[0021]
In the “bag making process (FIG. 11)”, in the case where printing is performed on the side surface portion of the tube body corresponding to the side face of the bag making, Patent No. 2,626,660 owned by the applicant of the present application (Title for flat bag making) Molding is carried out by the manufacturing method of the printed body on the front and back sides of the bag body when the contents are packed in the finished bag body in the synthetic resin tube body and the manufacturing method of the bag body by the synthetic resin tube body) Do.
[0022]
A thirteenth loss (m) occurs in the seal state confirmation operation in the seal state confirmation unit 82 after the printing operation in the side surface printing operation unit 81 of the tube body. The finished product excluding the defective product is stored in the pallet 83 and processed by the bag making operation unit 84, and then the seal state confirmation unit 85 confirms the size in the sealed state. Bag loss (n)) occurs. The finished product excluding the defective product is packed in the packing unit 86 and then stored on the pallet 87.
[0023]
In addition, after passing through the seal state confirmation unit 82, the packaging unit 86 may pack the product and store it on the pallet 87.
[0024]
Further, in the inspection process, the operation of printing the inspected rice bag tube body transferred after being stored on the pallet 73 on the side surface portion of the tube body corresponding to the side surface of the bag making is omitted, and the bag making operation unit is directly performed. 84 may be transferred.
[0025]
"Molding process of cylindrical tube for winding up tube body for rice bags"
(1) Collect the plastic resin rice bag loss, that is, scraps a to n, which are generated in the "molding", "printing process", "inspection", and "bag making" processes.
(2) The collected scraps a to n of the tube body are processed into pellets using an existing apparatus.
(3) The pellet material is fed from the hopper 14 of the extrusion molding machine 13 and is sent to the mold 16 by the screw 15 to extrude the long synthetic resin cylinder A ′.
(4) By cutting the extruded long synthetic resin cylindrical body A ′ into a predetermined length, a cylindrical tube for winding the tube body is obtained.
[0026]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained. Collecting scrap generated in each of the "molding", "printing process", "inspection", and "bag making" processes of rice bags and pelletizing them to form a cylindrical body for winding up a tube for rice bags Thus, it is possible to improve the environmental sanitation by reliably performing the waste generation process associated with the production of rice bags. In addition, since the cylindrical body for winding up the tube body for the rice bag is made of synthetic resin, the strength is increased and it can be used repeatedly, so that the cost can be reduced as compared with the conventional paper tube.
[Brief description of the drawings]
FIG. 1 is a plan view of a rice bag tube forming machine for forming a cylindrical body for winding a tube body for a rice bag according to the present invention.
FIG. 2 is a schematic front view of a tube forming machine for rice bags.
FIG. 3 is a side view of a tube body printing machine for rice bags.
FIG. 4 is a front view of a rice bag tube loosening machine.
FIG. 5 is a side view of a rice bag tube loosening machine.
FIG. 6 is a schematic front view of a cylindrical body forming machine for winding a tube body for a rice bag.
FIG. 7 is a perspective view of a cylindrical tube for winding a tube body for a rice bag formed by a cylindrical body forming machine.
FIG. 8 is a drawing showing a process for forming a tube body for a rice bag.
FIG. 9 is a printing process diagram of a tube body for a rice bag.
FIG. 10 is an inspection process diagram of a tube body for a rice bag.
FIG. 11 is a bag manufacturing process diagram of a tube body for rice bags.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rice bag tube forming machine body 2 ... Hopper 3 ... Extrusion screw 4 ... Die 5 ... Printing machine body 6 ... Unwinding machine body 7 ... Tube body winder 8 ... Pinch roller 9 ... Roller roller 10 ... Traverse 11 ... Tension controller 12 ... Linear guide roll 13 ... Extruder body 14 for take-up cylindrical tube ... Hopper 15 ... Extrusion screw 16 ... Die A ... Cylindrical tube for winding A ′ …… Long cylindrical body

Claims (2)

In the process of forming the tube body for bag body by inflation molding, the process of printing on the tube body for molded bag body, the inspection process of the tube body for printed bag body, and the bag making process of the printed tube body for inspection A rice bag that is made by pelletizing only the tube body scrap that is generated, and is set to 90.0 to 95.0 mm in diameter , 7.0 to 10.0 mm in wall thickness , and 150.0 to 500.0 mm in length by extrusion molding using a long cylindrical mold A cylindrical tube for winding a synthetic resin tube body, wherein the cylindrical body (A) for winding the tube body is integrally formed . Only scrap that becomes a loss in the forming, original tube printing, inspection, and bag making processes of rice bag forming in rice bag molding is collected and pelletized, and this is put into an extrusion molding machine and the diameter is 90.0 to 95.0 mm, A method of manufacturing a cylindrical tube for winding a synthetic resin tube body, wherein a cylindrical body for winding a tube body for a rice bag set to a thickness of 7.0 to 10.0 mm and a length of 150.0 to 500.0 mm is integrally formed.

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