JPH0737092B2 - Film laminating device 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 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) made by sticking a laminated film coated with an adhesive to a mount coated with a release agent, and then peeled the laminated film from the mount and stuck the laminated film on the surface of the printed web. After that, in the punching section equipped with a flat die, the unnecessary portion of the printed label with the backing paper, label paper, and transparent laminated film attached and polymerized is punched out, and 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 printing protective 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. When a certain amount of strong tension is applied and the laminated film is pasted on the surface of the printed web in the stretched state, and the unnecessary part is punched out in the punching step in the next step, the stretched laminated film is in the original state. There is a problem that the product shrinks a little when trying to return to, and thus 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 the same problem as described above occurs. The present invention provides a film laminating apparatus in a label printing machine which realizes cost reduction of a product as well as product warp and twist by reducing as much as possible by using only a laminating film without a mount as a print protection material. It is a technical issue to provide.

[0007]

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

Web supply section, printing section 2, flat die 29
It is attached to a label printing machine consisting of a punching section 3 having a punching section and a product winding section, and a sandwiching roller 6 and a heat roller are provided at a position facing the web feeding path 5 between the printing section 2 and the punching section 3. A holding part 9 for holding the web 8 with the roller 7.
The holding roller 6 and the heat roller 7 are provided so that they can be brought into contact with and separated from each other. A film laminating apparatus for a label printing machine, characterized in that a laminating film supplying section 11 for supplying a laminating film 10 to the surface of a printed web 8 so as to be superposed on a roller 7 is provided in the vicinity of the holding section 9. It is related to.

A label printing machine comprising a web feeding section, a flat pressure printing section 2, a punching section 3 having a flat die 29, and a product winding section, which is provided between the printing section 2 and the punching section 3. In the vicinity of the web feeding path 5, an elevating part 30 which is moved up and down by a cylinder device is provided.
The raising and lowering of 30 is made to interlock with the raising and lowering of the printing table 1 of the flat pressure type printing unit 2 and the raising and lowering of the flat die 29 of the punching unit 3.
Is provided with a heat roller 7, and a holding roller 6 is provided so as to face the heat roller 7, and the heat roller 7 and the holding roller 6 hold the printed web 8 printed and supplied from the printing unit 2. A sandwiching unit 9 is provided, and a laminate film supply unit 11 is provided to supply the laminated film 10 to the surface of the printed web 8 so that the laminated film 10 is polymerized by heat of the heat roller 7 and pressure contact between the heat roller 7 and the sandwiching roller 6. The present invention relates to a film laminating apparatus in a label printing machine, characterized in that it is provided in the vicinity of.

[0010]

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.

The flat die 29 descends in the punching section 3 which is the next step, and when the printed label is punched out, the feeding of the printed label is stopped. When the feeding of the printed label is stopped, the holding roller 6 and the heat roller 7 separate from each other.

[0012]

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

FIG. 1 is an explanatory front sectional view of a label printing machine equipped with this device, FIG. 2 is a perspective view of this device, and FIG. 3 is a front view of this device.

In this embodiment, the cylinder rod 14 of the air cylinder 13 is provided between the frames 12 attached to the label printer main body.
An elevating body 4 is provided which is moved up and down by the ascent and descent motion of the
A heat roller 7 having a web width is mounted on the upper part of the web, and the sandwiching roller 6 is mounted on the lower side of the heat roller 7 so as to face the heat roller 7 between the frames 12, and the laminated film 10 is obliquely positioned above the frame 12. This is a structure in which the original fabric hanging portion 17 is provided, and an appropriate number of guide rollers 18 are mounted between the frames 12 to provide a laminate film carrying path 19.

A preheater for preheating the laminate film 10 (not limited to the preheater, any kind of preheat lamp or the like may be used) for preheating the laminate film 10 at a predetermined position of the laminate film carrying path 19.

The raising and lowering of the flat die 29 and the raising and lowering of the printing table 1 of the printing unit 2 are interlocked with each other. When the holding roller 6 and the heat roller 7 are brought into contact with each other, the proximity sensor 15 and the two fan-shaped plates are superposed. The cylinder rod 14 of the air cylinder 13 is retracted when the rotation detection plate 16 formed as described above comes close to the holding roller 6.
And the heat roller 7 are designed to be separated from each other. That is, when the flat die 29 is lowered, the feeding of the printed label is stopped by a known stop mechanism (not shown) (when the feeding of the printed label is stopped, the printing table 1 of the printing unit 2 is also lowered). Proximity sensor 1 when feeding of printed label is stopped
5 is designed to detect the rotation detection plate 16.

The detection timing of the rotation detection plate 16 by the proximity sensor 15 (the timing when the holding roller 6 and the heat roller 7 separate) and the detection time of the rotation detection plate 16 (the holding roller 6 and the heat roller 7).
The timing (at which they come into contact with each other again) is performed by changing the surface area by sliding the two fan-shaped plates constituting the rotation detection plate 16.

Further, the heat roller 7 rises and descends after a predetermined time. In this apparatus, the rise and fall positions of the heat roller 7 with respect to the web 8 are performed in the non-printed portion 31 of the web 8. In addition, the arrangement positions of the holding roller 6 and the heat roller 7 with respect to the web 8 are designed to be movable back and forth in the web feed direction (specifically, the attachment position of the frame 12 with respect to the label printing machine is designed to be variable. Has been done).

In the drawing, reference numeral 20 is a plate, reference numeral 21 is a punching blade, reference numeral 22 is a heater unit, reference numeral 23 is a guide rod, reference numeral 24 is a cylinder mounting portion, reference numeral 25 is a drying unit, and reference numeral 26 is a feed speed of the web 8. A rotating shaft that rotates in synchronization, reference numeral 27
Is a guide rod receiving portion, and reference numeral 28 is a cover.

Supply tension of the laminated film 10,
The feed speed is designed to be adjustable, the temperature of the heat roller 7 is also designed to be appropriately adjusted, and the pressure contact degree between the heat roller 7 and the holding roller 6 is also designed to be appropriately adjustable. .

Further, the lifting timing of the flat die 29,
The timing for raising and lowering the printing table 1 and the timing for stopping the feeding of the web 8 are provided so that they can be adjusted appropriately.

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 raising and lowering of the heat roller 7 is not limited to the illustrated air cylinder 13, but any mechanism such as a hydraulic cylinder or a rotating mechanism using a drive motor may be used. Further, the sandwiching section 9 may be configured such that the upper side is the sandwiching roller 6 and the lower side is the heat roller 7, contrary to the illustrated structure.

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 intermittently supplied due to the existence of the punching process by the flat die 29. The laminated film 10 is provided on the surface of the web 8 by the heat of the heat roller 7 and the heat roller 7.
And the sandwiching roller 6 are pressed against each other so as to be superposed and adhered (the laminated film 10 becomes a transparent film by heat).

Then, when the flat die 29 is lowered, the feeding of the printed label is stopped by the stop mechanism. With this stop, the proximity sensor 15 detects the rotation detecting plate 16, and accordingly, the air cylinder 13 is detected by this detection. Is operated and the holding roller 6 and the heat roller 7 are separated from each other, and when the detection of the rotation detection plate 16 of the proximity sensor 15 is completed, that is, when the punching of the flat die 29 is completed (in this case, the printing table 1 is used at the same time. The printing is also completed.), The operation of the air cylinder 13 is released, and the holding roller 6 and the heat roller 7 return to the original contact state.

If a preheating heater is provided at a predetermined position of the laminating film carrying path 19, the laminating film 10 is not heated abruptly by the heating roller 7 but is preheated by the preheating heater, so that it is gently heated. Therefore, 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 way is a flat die 29.
Punching is carried out intermittently in the punching section 3 which has a punch, and the punching dust is sent to the punching dust winding section, and the product is sent to the product winding section. At the time of punching with the flat die 29, the feeding of the printed label on which the laminate film 10 is adhered is stopped by the stop mechanism, but when the feeding of the printed label is stopped, the sandwiching roller 6 and the heat roller 7 come into contact with each other. In this state, the heat of the heat roller 7 is applied to the laminated film 10 in the stopped state.
Traces of heat (distortion, deformation such as strain) occur in the product, which significantly reduces the product value. The problem is that the laminated film 10 can be
This is a problem peculiar to the present embodiment, which adopts the heat-bonding method and does not occur in the type of sticking to.

In the apparatus according to the present embodiment, the holding roller 6 and the heat roller 7 are separated from each other by the detection of the rotation detection plate 16 of the proximity sensor 15 when the feeding of the printed label is stopped due to the lowering of the flat die 29. Therefore, such a problem does not occur.

In this 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 is used as the print protection material. In this case, the unevenness of the adhesive on the back surface of the laminated film 10 may prevent the laminated film 10 from being evenly attached to the printed web 8. However, according to the present embodiment, such a problem can be avoided. . Then, in this embodiment, there is no mount on the laminate film 10, therefore it is not necessary to peel off the laminate film 10 from the mount, and since the adhesive is not attached to the laminate film, the laminate film 10 is supplied. , Strong tension is not required, so unlike the conventional example, the laminated film is stretched.
Since 10 is not attached to the printed web 8, the product does not warp or twist 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 the present embodiment, the laminated film 10 is inline.
It is possible to quickly heat-bond them.

In the printing unit 2 of the present embodiment, if a predetermined unit is attached, the pressure type, not the flat pressure type shown,
It is of course possible to employ the rotary printing unit 2.

[0032]

As described above, the present invention is provided with a film laminating apparatus in a label printing machine which can reduce the manufacturing cost and can print a label which does not warp or twist the product.

[Brief description of drawings]

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

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

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

[Explanation of symbols]

 1 Printing Platform 2 Printing Section 3 Punching Section 5 Web Feeding Path 6 Clamping Roller 7 Heat Roller 8 Web 9 Clamping Section 10 Laminated Film 11 Laminated Film Supply Section 29 Flat Die 30 Lifting Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazuyuki Fukuda Inventor Kazuyuki Fukuda, Inakaba, Sakae-cho, Minamikanbara-gun, Niigata 1300 Sanjo Machinery Co., Ltd. 1300 Sanjo Machinery Works Co., Ltd.

Claims (2)

[Claims] 1. A label printing machine comprising a web supplying section, a printing section, a punching section having a flat die, and a product winding section, the web feeding being provided between the printing section and the punching section. A sandwiching part for sandwiching the web between the sandwiching roller and the heat roller is provided at a position opposite to the road, and the sandwiching roller and the heat roller are freely contactable and separable. Labels characterized by being provided in the vicinity of the sandwiching section to supply a laminate film in the gap between the sandwiching roller and the heat roller so as to superimpose the laminate film on the surface of the printed web in conjunction with the lifting timing of Film laminating equipment for printing machines. 2. A label printing machine comprising a web supply section, a pressure printing section, a punching section having a flat die, and a product winding section, the web being provided between the printing section and the punching section. A lifting unit that moves up and down by a cylinder device is provided in the vicinity of the feeding path. A sandwiching roller is provided so as to face the heat roller, and a sandwiching portion for sandwiching a printed web that is printed and supplied from the printing unit by the heat roller and the sandwiching roller is provided, and the laminated film is printed on the web. A laminating film supply section is provided near the sandwiching section so as to superimpose the heat on the surface of the heat roller by the heat of the heat roller and the pressure contact between the heat roller and the sandwiching roller. Film laminating apparatus in Le printing press.