JPH01254535A - Apparatus for attachment to web - Google Patents

Abstract

PURPOSE:To permit an accurate and neat attachment of a label to wet, by providing a push device having a push roller capable of pressing the web and movable from one and of the label to the other between a label retaining device and the label. CONSTITUTION:Web 1 is carried in an attaching operation position of an attaching device 10 and set at a predetermined tension and a label 2 is held by suction on the retaining surface 23 of a retaining head 22 provided on a label retaining device 20. The retaining head 22 and a press roller 37 of a push device 30 move toward each other and the press roller 37 presses the web 1 against the label 2 held on the retaining surface 23 of the retaining head 22 and rolls from one end of the label 2 to the other while maintaining its press action. It follows, therefore, that the press roller 37 rolls while linear contact with the web 1 to attach the label 2 to the web 1 from one end to the other while forcing out air from between the label 2 and web 1, whereby the label can be affixed to the web accurately and neatly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a web pasting device for pasting labels, other webs, etc. as objects to be pasted onto a web (flexible strip).

[Prior Art] A web such as thermal paper for color printing is wound onto a primary winding bobbin, the end of the winding is attached to a secondary winding bobbin, and then the web is wound between the two winding bobbins. Labels are sometimes affixed to the web, which is stretched with a certain tension, to indicate the product type.

Here, the conventional method of attaching an object to a web is: 1. After pasting the entire surface of the object on one side of the web, 2. The object is crimped onto the web.

[Problem that the invention seeks to solve]

However, in the conventional method of attaching an object to a web, air is introduced between the object and the web in the step (■) above, and the air is trapped in the label in the step (■) above. There is an inconvenience that wrinkles and unevenness are generated in the parts.

An object of the present invention is to reliably and beautifully attach an object to a web.

[Means for Solving the Problems] The present invention provides a web pasting device for pasting an object onto a web that is stretched at a constant tension. The web is pinched between the wave protection object holding device and the object to be applied, which faces the wave protection object holding device with the web sandwiched therebetween and is held on the holding surface of the wave protection object holding device. The device is equipped with a pressing device that moves the pressing tool from one end of the object to the other end.

[Function] According to the present invention, the pressing tool of the pushing device pinches the web between it and the object held on the holding surface of the wave-shielded object holding device, and presses one end of the object. Move from one side to the other end. Therefore, the pressing tool pushes out the air between the object and the web from one end of the object to the other end, while pushing the object against the web from one end of the object to the other end. It will be pasted towards the end. As a result, the object to be applied is reliably and beautifully applied to the web without introducing air between the object and the web.

[Example] Fig. 1 is a schematic front view showing a web pasting device according to an embodiment of the present invention, Fig. 2 is a schematic side view of Fig. 1, and Fig. 3 is a schematic diagram showing the pasting process. .

In this embodiment, a label (object to be affixed) 2 is affixed to a web 1. This web 1 is, for example, thermal paper for color printing, and is wound onto a primary winding bobbin 3A, and its winding end is attached to a secondary winding bobbin 3B. In addition, the web l is supported by both bobbins 3A and 3 by a bobbin support device (not shown).
In a state where B is supported, a certain tension is applied between both pobbins 3A and 3B. Further, the label 2 is provided with an adhesive layer 4 in advance.

The pasting device to includes a wave shield attachment holder M20 and a pushing device 30.
It consists of

The wave shield holding device 20 has a holding head 22 at the tip of a cylinder device 21, which faces one side of the web l (the bottom side in FIG. 1). The holding head 22 includes an adsorption/holding surface 23 that holds the label 2 by vacuum suction, and moves toward/away from the web 1 (moves up and down) under the operation of the cylinder device 21.

24 is a vacuum pipe.

Note that the holding surface 23 of the holding pad 22 is arranged at an angle with respect to the tension setting line of the web l.

The pushing device 30 is a moving table 3 provided on a pedestal 31.
2 has a pushing head 33 facing the other surface of the web 1 (plane -E in FIG. 1). The pushing head 33 is moved toward/away from the web l (up and down) by a first cylinder device 34 together with a moving table 32 guided by a sliding guide portion of the pedestal 31, and is moved by a second cylinder device 35. Then, guided by the sliding guide portion of the moving table 32, the web l moves in the direction along the tension setting line (left and right movement).

The pushing head 33 of the pushing device 30 includes a swinging arm 36, and a pushing roller (pressing tool) is attached to the tip of the swinging arm 36.
37 is rotatably supported.

The suppression roller 37 is elastically supported by a spring 38 interposed between it and the pushing head 33, and its moving end is regulated by a stopper 39 provided on the pushing head 33.

That is, the suppressing roller 37 faces the holding door 22 of the wave shield attachment holding device 20 in a state where the web l is sandwiched therebetween, and the holding door 22 is moved by the operation of the first cylinder device M34.
The web 1 can be pressed between the label 2 held on the holding surface 23 of the web 1. Further, the pushing device 30
Due to the operation of the cylinder device 35, the pressure roller 37
is rolled from one end of the label 2 toward the other end.

Next, the operation of the embodiment L will be explained.

The pasting operation by the pasting device 10 is performed as follows.

■The web 1 is carried into the pasting work position of the pasting device 10,
It is set with a constant tension applied. On the other hand, the label 2 is adsorbed and held on the holding surface 23 of the holding pad 22 provided in the wave protection attachment holding device 20 (see FIG. 3(A)).

■Next, the holding head 22 of the object holding device 20 and the pressing roller 37 of the pushing device 30 move forward relative to each other, and the pressing roller 37 engages the label 2 held on the holding surface 23 of the holding head 22. The web 1 is pinched between the
)reference).

(■Next, the pressing roller 37 of the pushing device 30 moves from one end of the label 2 to the other end while maintaining the above-mentioned clamping operation (see FIG. 3(C)).

Therefore, according to the pasting device 10, the pressure roller 37 always rolls while being in line contact with the web 1, and the label 2
The label 2 is attached to the web l from one end of the label 2 to the other end while pushing out the air between the label 2 and the web l from one end of the label 2 to the other end. . As a result, the label 2 is reliably and beautifully attached to the web 1 without introducing air between the label 2 and the web 1, and as a result, without creating wrinkles or unevenness.

Further, according to the pasting device 10, the holding surface 23 of the holding head 22 is arranged at an angle with respect to the tension setting line of the web 1. Therefore, the label 2 held on the holding surface 23 reliably contacts the web l from its one end side, and the suppression roller 37 reliably contacts the label 2 from the one end side of the label 2.
After pressing the web 1 between them, the pressing roller 37 can start moving toward the other end of the label 2. Thereby, air entrapment between the web 1 and the label 2 can be reliably and easily eliminated.

In addition, in carrying out the present invention, the object holding device may hold the object by means other than vacuum suction means.

Furthermore, in one embodiment of the present invention, the pressing tool may be one that slides into contact with the web like a spatula.

The present invention can also be applied to the case of pasting webs together, such as the pasting operation for connecting the same films and the pasting operation for connecting magnetic tape and leader tape.

[Effects of the Invention] As described above, according to the present invention, it is possible to reliably and beautifully attach an object to a web.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing a web pasting device according to an embodiment of the present invention, FIG. 2 is a schematic side view of FIG. 1, and FIG. 3 is a schematic diagram showing the pasting process. l...Web, 2...Label (object to be affixed). lO: Pasting device. 20... object holding device, 23... holding surface. 30...Pushing device. 37... Suppression roller (suppression tool). Agent Patent Attorney Osamu Shiokawa Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) In a web pasting device that affixes a target object to a web stretched with a constant tension, a state in which the web is sandwiched between a target object holding device comprising a holding surface that holds the target object and the web. A pressing tool is provided which faces the object holding device and is capable of pinching the web between the object held on the holding surface of the object holding device; A web pasting device comprising a pushing device that moves from one end of an object to the other end. (2) The web pasting device according to claim 1, wherein the holding surface of the pasted object holding device is arranged at an angle with respect to the tension setting line of the web.