JP3094321B2 - Packing and packaging method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of continuously covering a film on a pack containing articles to be conveyed continuously, and then packing the film by sealing the film on the periphery of the pack. The present invention relates to a packing and packaging method in which a film is cut between packs to obtain a packed product.

[0002]

2. Description of the Related Art After a film is continuously covered on a pack containing articles to be packaged continuously, for example, a pack containing tofu, the periphery of the pack and the film are sealed and packaged. A packing method has been carried out in which the film is cut between a pack and a pack to obtain a packed product.

[0003] In carrying out this packing method,
The film to be covered on the pack is supplied from the film roll, but when the supply from one film roll is completed, the leading end of the film from the next film roll is connected to the tail end, and the film is continuously It is being supplied.

[0004]

In such a case, the film is joined by overlapping the tail end and the front end of the film so as to overlap each other, and attaching or welding the film with an adhesive tape from above. Therefore, the joined portion has a laminated portion which cannot be used for packaging. If such a spliced film is successively covered with a pack and packed, a pack covered by such a spliced portion will be produced, and such a packed product cannot be put on the market. Become.

[0005] In such a conventional method, the pack covered by the joint portion is not only wasted, but also an operation of detecting such a pack which does not become a product is required, resulting in an increase in cost. Become. Therefore, a pack packaging method that does not cause such defective packaging is preferable. The present invention has been made in view of the above circumstances, and has as its object to provide a packing and packaging method that does not cause defective packaging due to a seam of a film.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a film is continuously placed on a pack containing articles to be continuously transported, and the film is sealed and packaged on the periphery of each pack. In order to solve the above-mentioned problems in the packing and packaging method in which the film is cut between the packs to obtain a packed product, the following packaging method is provided.

That is, in the packaging method according to the present invention, the raw film ends to be replenished at the film position corresponding to the cutting position between the packs are supplied in abutting relation to each other. In this case, the ends of the raw film butted against each other may be stuck with an adhesive tape so as to reliably add the ends.

When patterns and characters are printed on the film to be covered on the pack, the film edge is controlled so as to abut between the patterns. When printing a production serial number or the like on the film in the middle of transport, the timing of the operation of the film feeder and the printing device is performed so that the printing is performed on the film portion just over the pack on both sides of the butt end. . An appropriate manner may be adopted for the timing of bringing the film ends to be replenished into contact with each other at the film position corresponding to the cutting position between the packs according to the present invention.

[0009]

According to the packaging method of the present invention, the film ends to be replenished are supplied at the film position corresponding to the cut position between the packs to be cut after the packaging, and the abutting portion is located at the position to be cut. The butt seam has no adverse effect on the pack packaging.

Also, when the butt portion of the film is adhered with an adhesive tape to join the films, it is used for joining the film edges to the top surface of the film covering the pack where the seam comes to the end. Only a small amount of adhesive tape remains, which does not cause defective packaging unlike the conventional case. In particular, if a transparent adhesive tape is used, the beauty of the product will not be impaired.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A packing and packaging method according to the present invention will be specifically described below with reference to FIGS. FIG. 1 shows an example of a packing and packaging method according to the present invention, in which a film F is covered on a top surface of a pack P containing tofu TF.
Shows a case in which packaging is performed by sealing around the periphery of the package. The packs P are placed on the conveyor C and continuously sent in the direction of the arrow in the figure. The film F unwound from the film web A is continuously covered on the packs P.

When the sealer S is pressed in this state, the pack P and the film F are sealed at the periphery of the pack P. Pack P and Pack P with Film F Sealed
Is sent to the position of the cutter CU, the cutter CU descends, and the film F between the packs P is cut. In this way, tofu packed products are completed.

The film F for packaging described in FIG. 1 is supplied continuously, for example, in the manner shown in FIG. In FIG. 2, A and B each indicate a film raw material. In FIG. 2, the film is supplied from the film raw material B,
The film source A shows a state of waiting.

Reference numerals 2 and 2-1 denote guide rollers, and the films drawn from the film webs A and B pass through the guide rollers 2 and 2-1, respectively.
−1, the film feed roll 5 at the start,
Sent to 5-1. Reference numeral 6 denotes a print receiving roll drive.
Is a film feed roll.

Reference numeral 8 denotes a film feed roll with a clutch brake. The film exiting the film feed roll 8 is sent to the packaging device shown in FIG. A cutter 4,4-1 is provided between the film feeding rolls 3,3-1 and the film feeding rolls 5,5-1.
Is provided. A film feed 10 for printing is provided between the print receiving roll drive 6 and the film feed roll 7.
Is arranged.

In the apparatus shown in FIG. 2, the end of the film of the film source B is detected by detecting that the film END mark has been detected outside the limit switch or dancer roll, or that the wrapping apparatus has completed the wrapping of a predetermined number. Is detected, the cutter 4-1 is operated to stop the supply of the film from the original film B. Then, the film before the cutting position is sent to the film feed roll 7 as it is.

The cutting tail end is the print receiving roll 6 in FIG.
When it is detected, for example, by an encoder attached to the rotating shaft of a film feed roll that the film has been sent to a point slightly before the position C, the film feed roller of the film source A is started, and the film supply from the film source A is started. Be started.

The film from the film source A is fed to a print receiving roll 6 by sandwiching it with a suitable film drawing mechanism, for example, a belt. When the tail end of the film from the film source B and the leading end of the film from the film source A are brought into contact with each other, an adhesive tape T is applied to the upper surface of the abutted film in an appropriate manner. As shown in FIG. 3, both ends are connected in a butt state. Thus, the film supply from the film source B is switched to the film supply from the film source A.

The timing of the seams of the films joined in this manner is controlled so that they are located exactly in the middle between the packs P in FIG. When a print or a pattern is attached to the film, the film from the film raw material B and the film from the film raw material A are cut just in the middle of those patterns and the like, and the ends are attached with an adhesive tape T. The timing is controlled so that the film has the same pattern arrangement as the pattern before cutting.

Also, for the film to be sent,
At the print receiving roll 6, printing for packaging such as a production serial number is performed. However, the operation of the packaging mechanism and the operation of the printing device are performed so that printing is performed on the film portion just over the pack on both sides of the butt end. The timing of the film feeding is controlled by the film feeding roll 9 with the clutch brake so that the printed characters, symbols, patterns, and the like match the operation of the downstream packaging device.

In this manner, the spliced film is cut at its butt end by the cutter CU, so that the seam does not cause a defective seal in the packaged product. In this way, a product that is continuously and well packed without waste is produced in both the film and the packed product.

In the above embodiment, the abutted film ends are attached with an adhesive tape and sent.
If you want to avoid sticking the adhesive tape to the film covering the pack, etc., without sticking the butt film end with the adhesive tape, send it with the film ends butt and cover it over the pack and seal it It may be changed as follows.

[0023]

As described above, according to the pack packaging method of the present invention, the film ends to be replenished at the film position corresponding to the cut position between the packs are supplied and packaged by abutting each other. Comes between packs and has no effect on pack packaging. Also, in the case where the butt end portion is attached with an adhesive tape to supply and package the film together, the film attached to the joint only partially adheres to the edge of the film covering the pack. And has no effect on pack packaging.

As described above, according to the pack packaging method of the present invention, even if the film is continuously fed and the pack is wrapped, a defective seal does not occur in the packed product due to the seam of the film.

[Brief description of the drawings]

1A and 1B are drawings showing a state in which tofu is packed by a packing method of the present invention, wherein FIG. 1A is a side view, and FIG.

FIG. 2 is an explanatory view showing a configuration of a film splicing device used in the packing method of the present invention.

FIG. 3 is a sectional view showing a spliced state of films by the apparatus shown in FIG. 2;

[Explanation of symbols]

 A, B Raw film C Conveyor CU Cutter F Film P Pack S Sealer T Adhesive tape TF Tofu 2, 2-1 Guide roller 3, 3-1 Film feed roller 4, 4-1 Cutter 5, 5-1 Film feed roll 6 Print receiving roll 7 Film feed roll 8 Film feed roll 9 Guide roll

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 19/18 B65B 7/28 B65H 43/02 B65B 41/12

Claims (2)

(57) [Claims] 1. A film is continuously placed on a pack containing articles to be continuously transported, and the periphery of each pack and the film are sealed and packed, and the film is placed between the packs. Wherein the raw film ends to be replenished at a film position corresponding to a cutting position between the pack and the pack are supplied while being abutted to each other. Packing and packaging method. 2. The apparatus according to claim 1, wherein said abutting ends of said film are supplied with an adhesive tape.
Packing and packaging method described in 1.