JPH0735104B2 - Film laminating apparatus and method for label printing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film laminating apparatus and method for a label printing machine which can reduce the manufacturing cost of labels and improve the quality of products.

[0002]

2. Description of the Related Art A conventional label printing machine supplies a web formed by sticking a label paper coated with an adhesive to a base paper coated with a release agent to a printing section, and the desired printing is performed in the printing section. A protective paper (tack paper) consisting of a laminate film coated with a release agent and a laminate film coated with an adhesive is attached to the surface of the printed web while peeling the laminate film from the mount sheet. Then, in the punching section equipped with a rotary die, the mount, label paper, and transparent laminated film are stuck and the unnecessary portion of the printed label is punched out, and the punching waste and the product from which the unnecessary portion is removed are separated. It is to be wound up.

[0003]

In such a conventional label printing machine, as is apparent from the above-mentioned steps, the mount of the print protection material is actually wasted.

This print protection material is expensive because it uses silicone, and this point must be solved in order to reduce the cost of the product.

Further, the type using this print protection material (tack paper) is one in which the laminate film is peeled from the mount and the laminate film is attached to the printed web, so that the laminate film is laminated to remove the laminate film from the mount. It will put a certain amount of tension on the film. A certain amount of strong tension is applied, the laminate film is pasted on the surface of the printed web in the stretched state, and when the unnecessary part is punched out in the punching part of the next step, the stretched laminate film returns to its original state. There is a problem in that the product shrinks a little when trying to return, and therefore the product warps and twists.

In the case of a type in which tacky paper is not used as a print protection material and only the back surface of the laminate film is provided with an adhesive, the laminate film is wound in an adhesive state by the adhesive, and therefore, to a certain extent. If tension is not applied, the laminated film wound in an adhesive state cannot be peeled off and pulled out, and the same problem as described above occurs.

The present invention is a film for a label printing machine which realizes cost reduction of a product and reduces warpage and twist of the product as much as possible by using only a laminate film without a mount as a print protection material. It is a technical object to provide a laminating apparatus and its method.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

A label printing machine comprising a web supply section 1, a printing section 2, a punching section 3 and a product winding section 4, which is provided between the printing section 2 and the punching section 3 for feeding the web. A sandwiching portion for sandwiching the web 8 with the sandwiching roller 6 and the heat roller 7 is provided at a position opposite to the path 5, so that the laminate film 10 is superposed on the surface of the printed web 8 in the gap between the sandwiching roller 6 and the heat roller 7. The present invention relates to a film laminating apparatus in a label printing machine, characterized in that a laminating film supplying section 11 for supplying the sheet is provided in the vicinity of the holding section 9.

The web 8 supplied from the web supply unit 1 is printed in the printing unit 2, and then the printed web 8 is printed.
In the label printing method that punches out and removes unnecessary parts of
It is provided so that the laminated film 10 can be supplied in a polymerized state to the printed web 8 printed in the printing unit 2,
A film laminating method in a label printing method, characterized in that the laminate film 10 is heat-bonded to the surface of the web 8 and then an unnecessary portion is punched out from a printed label obtained by polymerizing the web 8 and the laminate film 10. It is related to.

A label printing machine comprising a web supply section 1, a printing section 2, a punching section 3 having a rotary die, and a product winding section 4 is provided between the printing section 2 and the punching section 3. A sliding frame 16 which is slid by a cylinder device is provided in the vicinity of the web feeding path 5, and the sliding frame 16
A heat roller 7 is mounted on the shaft, and a sandwiching roller 6 is arranged so as to face the heat roller 7, and a printed web 8 is printed and supplied from the printing unit 2 by the heat roller 7 and the sandwiching roller 6.
A holding section 9 for holding the heat roller 7 is provided on the surface of the web 8 on which the laminated film 10 has been printed.
A laminate film supply unit 11 is provided in the vicinity of the holding unit 9 so as to superimpose it by pressure contact between the holding roller 6 and the holding roller 6, and a web is provided in a laminate film transport path 19 between the laminate film supply unit 11 and the holding unit 9. The present invention relates to a film laminating apparatus in a label printing machine, characterized in that a preheating heater 20 for preheating 8 is provided.

[0012]

The printed web 8 printed by the printing unit 2 passes through the web feeding path 5 and is sent to the holding unit 9 in which the holding roller 6 and the heat roller 7 are oppositely arranged. The supplied laminated film 10 is attached to the surface of the printed web 8 in the holding section 9 by the heat of the heat roller 7 and the pressure contact between the heat roller 7 and the hold roller 6.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment in which the present apparatus is attached to a multicolor label printing machine having a rotary die in a punching section 3, which will be described below.

FIG. 1 is a front view for explaining a label printer equipped with this device, FIG. 2 is a perspective view of this device, FIG. 3 is a cross-sectional view of this device, and FIG. FIG. 3 is a cross-sectional view of a label in which a laminate film 10 is heat-bonded to a web 8 formed from the above.

In this embodiment, a fulcrum rod 15 is installed on the frame 12 by the cylinder rod 14 of the air cylinder 13 protruding and retracting between the side walls of the frame 12 attached to the main body of the label printing machine.
A sliding frame 16 that slides around the fulcrum shaft is provided, and this sliding frame 16
A heat roller 7 having a web width is hung between the base ends of the holding roller 6, and the holding roller 6 is hung below the heat roller 7 so as to face the heat roller 7 between the frames 12, and the holding roller 6 is hung on the side wall of the frame 12 at a predetermined position. An original web hanging portion 17 of the laminated film 10 having a width is provided, and an appropriate number of guide rollers 18 are vertically mounted between the frames 12 to provide a laminated film carrying path 19.
A preheater 20 for preheating the laminate film 10 (preheating lamp is used in the drawing, but various structures such as a structure for sending hot air can be designed) is provided at a predetermined position of 19.

Reference numeral 21 in the drawing is a preheating heater cover, and reference numeral 22.
Is a heater unit, 23 is an impression cylinder, 24 is a printing unit, 25 is a drying unit, and 26 is a punching dust winding section.

Supply tension of the laminated film 10,
The feed speed is designed to be adjustable, the temperatures of the preheater heater 20 and the heat roller 7 are also adjusted appropriately, and the pressure contact degree between the heat roller 7 and the sandwiching roller 6 can also be adjusted appropriately. Is designed.

The laminate film 10 may be of any type as long as it can be heat-bonded, and for example, a film made of polyester resin, polyamide resin, polyvinyl alcohol resin, polyphenylene sulfide resin, or polyimide resin is adopted.

It should be noted that the sliding movement of the sliding frame 16 is not limited to the illustrated air cylinder 13, but may be any mechanism such as a hydraulic cylinder, a rotating mechanism by a drive motor, and the holding portion 9 has the illustrated structure. On the contrary, a structure in which the upper side is the sandwiching roller 6 and the lower side is the heat roller 7 may be adopted.
Further, the heat roller 7 does not move up and down, but the holding roller 6
It goes without saying that a structure opposite to that shown in the drawing may be used.

Since the present embodiment has the above-mentioned structure, the laminated film 10 mounted on the original web hanging portion 17 is supplied to the printed web 8 which is continuously supplied, and the laminated film 10 is provided on the surface of the web 8. The heat roller 7 heats and the heat roller 7 and the holding roller 6 press-contact with each other to superimpose them (the laminated film 10 becomes a transparent film by heat).

At this time, the laminated film 10 is not heated rapidly by the heat roller 7, but is heated by the preheater 20.
Since it is preheated by means of the above, it is gently heated, so that the heat roller 7 and the sandwiching roller 6 are favorably attached to each other in the sandwiching portion 9.

The printed web 8 having the laminated film 10 adhered to the surface thereof in this manner is continuously punched by the punching section 3 having a rotary die, and the punching scraps are fed to the punching scrap winding section 26, and The product is sent to the product winding section 4.

When the printing press is stopped, for example, when the printing press is stopped for trial printing, the air cylinder
The cylinder rod 14 of 13 is immersed, and the sliding frame 16 is a fulcrum rod 15.
The heating roller 7 and the holding roller 6 are separated from each other by using the shaft as a fulcrum shaft. When the printer is activated again,
The cylinder rod 14 projects, and the heat roller 7 and the holding roller 6 are pressed against each other.

Therefore, in the present embodiment, it is not necessary to use the tack paper, that is, the laminated film 10 with the mount as an expensive print protection material, and therefore the cost can be reduced accordingly, and the tack paper can be used as the print protection material. When used, it may occur that the laminated film 10 cannot be evenly attached to the printed web 8 due to the non-uniformity of the adhesive on the back surface of the laminated film 10. However, according to the present embodiment, such a problem is also avoided. You can

In this embodiment, the laminated film is used.
10 does not have a mount, therefore it is not necessary to peel off the laminate film 10 from the mount, and since the laminate film does not have an adhesive, a strong tension is not required when supplying the laminate film 10, therefore, Unlike the conventional example, since the laminated film 10 is not attached to the printed web 8 in the stretched state, the product is not warped or twisted even if an unnecessary part is punched out in the punching part 3 which is the next step.

As described above, according to the label printing machine provided with the apparatus according to this embodiment, the laminated film 10 is in-line.
It is possible to quickly heat-bond them.

The punching unit 3 may be provided with both a rotary die and a flat die, and the apparatus according to this embodiment may be attached to a label printing machine that can selectively use both. In the case of this label printing machine, when the use of the flat die is selected and the label feeding is stopped for punching by the flat die, the printing process and the polymerization process of the laminating film 10 and the web 8 are not hindered. That is, the flat die unit is incorporated in the punching section 3 so as to maintain the continuous feeding of the web 8 in the printing process and the polymerizing process of the laminate film 10 and the web 8.

[0028]

As described above, the present invention provides a film laminating apparatus and method for a label printing machine which can reduce the manufacturing cost and can print a label which does not warp or twist the product. become.

[Brief description of drawings]

FIG. 1 is an explanatory front view of the present invention.

FIG. 2 is a perspective view of the present invention.

FIG. 3 is a sectional view of the present invention.

FIG. 4 is a sectional view of a part of the label according to the present invention.

[Explanation of symbols]

 1 web supply part 2 printing part 3 punching part 4 product winding part 5 web feed path 6 holding roller 7 heat roller 8 web 9 holding part 10 laminate film 11 laminate film supply part 16 sliding frame 19 laminate film carrying path 20 preheat heater

Front page continuation (72) Inventor Kazuyuki Fukuda 1300, Inojiba, Inakaba, Sakae-cho, Minamikanbara-gun, Niigata Inside Sanjo Machine Works Co., Ltd. Sanjo Machine Works Co., Ltd.

Claims (3)

[Claims] 1. A label printing machine comprising a web supply section, a printing section, a punching section, and a product winding section, wherein the web feeding path is located between the printing section and the punching section. A holding section for holding the web with a holding roller and a heat roller is provided, and a laminate film supply section for supplying a laminate film to the surface of the printed web in a gap between the holding roller and the heat roller so as to polymerize the laminated film is provided in the holding section. A film laminating apparatus for a label printing machine, which is provided in the vicinity. 2. A label printing method for printing a web supplied from a web supply section in a printing section and subsequently punching out and removing an unnecessary portion of the printed web, wherein a laminated film is formed on the printed web printed in the printing section. A label characterized in that it is provided so as to be supplied in a polymerized state, the laminate film is heat-bonded to the surface of the web, and then unnecessary portions are punched out from the printed label obtained by polymerizing the web and the laminate film. Film laminating method in printing method. 3. A label printing machine comprising a web supply section, a printing section, a punching section having a rotary die, and a product winding section, the web feeding being provided between the printing section and the punching section. A sliding frame that is slid by a cylinder device is provided in the vicinity of the path, a heating roller is mounted on the sliding frame, and a sandwiching roller is arranged facing the heating roller.
A sandwiching unit for sandwiching a printed web that is printed and supplied from the printing unit by the heating roller and the sandwiching roller is provided, and the heat of the heating roller and the pressure contact between the heating roller and the sandwiching roller are applied to the surface of the printed web of the laminate film. A laminate film supply unit that supplies so as to polymerize by is provided in the vicinity of the sandwiching unit, and a preheater that preheats the web is provided in the laminate film transport path between the laminate film supplying unit and the sandwiching unit. Laminating device for label printing machine.