JP2001301727A - Film sticking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the film sticking workability by reliably preventing a film cutting end from being wound around a sticking roll in a film sticking apparatus in which a delivered film 4 is stuck to a work A with a traveling film stuck thereto by the sticking roll 1, the film is cut by a cutter 2 immediately after the work passes through the sticking roll, and a baffle member 3 for preventing a cut end of the film from being wound around the sticking roll is disposed between the sticking roll and the cutter. SOLUTION: Conductivity is given to the baffle member 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film sticking apparatus, which is used, for example, when a protective film is stuck on a decorative board or an acrylic board.

[0002]

2. Description of the Related Art In plate materials such as decorative plates and acrylic plates, in order to prevent scratches and stains on the surface of the plate material during transportation,
A protective film such as a polyethylene film is temporarily attached, and the protective film is peeled off when using the plate material. FIG.
(A) to (c) show the process of attaching the protective film, and as shown in (a) of FIG. 4, the film 4 'which is unwound from the roll-wound film 5' (adhesive on one side). Is applied to the surface of the running plate A 'by the application roll 1', and the film 4 'is fed out by the travel of the plate A'. When the application of the film to the plate is completed. As shown in FIG. 4 (b), the film 4 ′ is cut by the cutter-2 ′, and FIG.
As shown in (c), when the next plate A 'comes into contact with the attaching roll 1', the film is thereafter attached to the next plate in the same manner as in (a) of FIG.

[0003] In the above, the film cut end 40 '
Is that the film cutting end 40 'is shaken by wind or the like and is attached to the attaching roll 1' until the next plate material comes into contact with the attaching roll 1 '. Usually, a plastic baffle plate 3 'is arranged at a position immediately after the sticking roll 1'.

[0004]

By the way, according to the experience of the present inventor, despite the arrangement of the baffle plate, depending on the surrounding conditions, it is shown in FIGS. 5 (a) and 5 (b). As described above, the cut film end portion 40 'is baffled 3'.
And may be wound around the sticking roll 1 '. Therefore, the present inventor has scrutinized the cause, and it is presumed that the charge is the cause. If the baffle plate is provided with conductivity and grounded, the cut end of the film is wrapped around the attaching roll. Knew that can be prevented.

[0005] The grounds for the generation of the above-mentioned charged electric charges are based on the fact that when the leading end of the plate material passes through the sticking roll and when the trailing end of the plate material leaves the sticking roll, between the sticking roll and the film and between the sticking roll and the film. As a result of a frictional force acting between the edge of the plate material and a cleavage force acting when the film is peeled off from the film winding roll, a dielectric film and a sticking roll (made of rubber) are obtained. Contact charging or frictional charging occurs. Thus, the charge of the sticking roll and the charge of the film have different polarities, and the cut end of the film is attached to the sticking roll.
It is presumed that the cut end of the film is wound around the attaching roll by electrostatic attraction due to electrostatic field dynamics.

SUMMARY OF THE INVENTION It is an object of the present invention to affix an unrolled film to an object to which a film is to be attached by a sticking roll, and to cut the film with a cutter immediately after the object passes through the sticking roll. In a film sticking apparatus in which a baffle member for preventing the cut end of the film from being wound around the sticking roll is provided between the sticking roll and the cutter, the sticking of the cut end of the film is performed. An object of the present invention is to improve the workability of attaching a film by reliably preventing winding around a roll.

[0007]

According to the present invention, there is provided a film sticking apparatus for sticking a film fed out to a running film sticking object with a sticking roll, and the object passing through the sticking roll. Immediately after the cutting, the film is cut by a cutter, and a sticking device is provided between the sticking roll and the cutter to prevent a cut end of the film from being wound around the sticking roll. In the above-mentioned structure, the baffle member is provided with conductivity.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a drawing showing a main part of an embodiment of the film sticking apparatus according to the present invention. FIG.
In the above, reference numeral 1 denotes a sticking roll, and a rubber roll having an outer surface formed of an elastic layer such as a rubber layer can be used. Reference numeral 2 denotes a film cutter, for example, a wire type cutter can be used. Reference numeral 3 denotes a baffle plate disposed between the attaching roll 1 and the cutter 2, which is grounded after imparting conductivity.
Attach the arm 31 and cutter the metal fitting 32 at the tip of the arm.
The bolt hole of the metal fitting 32 is formed as an elongated hole so that the bolt is fastened to the frame 21 with a bolt 33 so that the distance from the attaching roll 1 can be adjusted. As shown in FIG. 2, the baffle plate 3 can be made of a plastic plate or a wooden plate 30 wrapped with a conductive fiber woven cloth 301 and bound by a copper wire 302 to impart conductivity. The metal 31 can be made of metal and grounded.

The film sticking apparatus according to the present invention can be used, for example, for sticking a protective film to a plate material such as a decorative plate, an acrylic plate, a glass plate, a name plate, or the like, in which surface damage or dirt is a fatal defect. In this case, the apparatus of the present invention is installed in a plate material transfer line.

FIG. 3 shows a process of attaching a film (weakly adhesive film) using the film attaching apparatus according to the present invention. FIG. 3 (b) shows a state in which the plate material A is passing through the attaching roll 1 and the film 4 is being attached, and FIG. The drawing shows the state immediately after the film 4 has passed through the attaching roll 1 and the film 4 has been cut by the cutter 2. In the above description, when the leading end a of the plate material passes through the attaching roll 1 and the trailing end b of the plate material is located at
When the roll 1 escapes, a shear slip occurs between the edge of the plate material and the sticking roll, and charges of different polarities are applied to the dielectric (rubber layer) of the sticking roll and the film dielectric. Generated by the triboelectric phenomenon. In addition, the adhesive roll wound film 5
When the film is unwound, a peeling force acts on the film surface due to cleavage of the adhesive interface, and contact charging occurs. Therefore, FIG.
At (c), the film cutting end 40 is attached with
The electric charge having a polarity different from that of the charged electric charge of the fuel cell 1 is charged.

However, when the baffle is made of only a dielectric (for example, plastic) as in the prior art,
The electrostatic field based on the different polarity charge between the sticking roll and the cut end of the film is not affected by the baffle plate, and the cut end of the film is cut by the clon force based on the two different charges. -Aspirated towards the In contrast,
In the film sticking apparatus according to the present invention, the baffle plate 3
Is grounded with conductivity, the electrostatic field based on the charged electric charge of the film cut end 40 and the electrostatic electric field based on the charged electric charge of the sticking roll 1 are terminated in the baffle plate 3, and the electric charges of different polarity are formed. The charged sticking roll 1 and the cut film end 40 are electrostatically shielded from each other. Therefore, the electrostatic attraction of the cut end of the film to the sticking roll due to the charge can be eliminated, and the winding of the cut end of the film around the sticking roll can be prevented.

Since the electrostatic field based on the above-mentioned different-polarity charge varies depending on the charged state and the position of the grounding baffle, it is possible to adjust the position of the baffle and adjust the position of the baffle according to the charged state. desirable.

In the above embodiment, the baffle is made conductive by wrapping it with a conductive fiber folded cloth. However, as long as the baffle can be provided with an electrostatic shielding function, the means for imparting conductivity is not limited. The baffle may be made of metal, or a conductive paint may be applied to a plastic or wooden baffle.

[0014]

Example [Example] A rubber roll having a diameter of 200 mm was used as a sticking roll, and a plastic plate having a width of 80 cm was wrapped with a metal fiber woven cloth (trade name: Celmec, Kasuga Electric Co., Ltd.). The baffle plate bonded with copper wire is inclined at an angle of 45 ° (θ in FIG. 3A) and the horizontal distance from the tip to the surface of the sticking roll [w in FIG. 3A].
Was set to a cutter frame (grounded state) with a metal arm so that the diameter was 10 mm. When a protective film was stuck to the plate using a decorative plate as the plate and a polyethylene film as the protective film, no case occurred in which the cut end of the film was wound around the sticking roll.

[Comparative Example] The same procedure as in the example was performed except that the plastic plate alone was used as the baffle plate and the attachment of the metal fiber woven fabric was omitted. -Wrapping around the cable.

[0016]

According to the present invention, the film to be fed is attached to a running plate by a sticking roll, and the film is cut by a cutter immediately after the plate passes through the sticking roll. Attachment row of cut end
In a pasting device in which a blocking member for preventing winding around the roll is disposed between the pasting roll and the cutter,
A charge is generated due to the pressure of the sticking roll on the plate material or the peeling of the roll-wound film, and the phenomenon that the cut end of the film is wound around the sticking roll due to the charged charge is caused. Recognition, the baffle plate is provided with an electrostatic shielding function to prevent the winding thereof, so that the protection film can be smoothly adhered to the plate material with a good yield.

[Brief description of the drawings]

FIG. 1 is a drawing showing an embodiment of a film sticking apparatus according to the present invention.

FIG. 2 is a drawing showing an example of a baffle used in the present invention.

FIG. 3 is a view showing a process of attaching a film by the film attaching apparatus according to the present invention.

FIG. 4 is a view showing a conventional film sticking apparatus.

FIG. 5 is a view showing a state in which a cut end portion of a film is wound around a sticking roll in a conventional film sticking apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pasting roll 2 Cutter 3 Conductivity imparting baffle 4 Film A Film pasting object

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E095 AA01 BA02 CA01 DA03 DA24 DA42 DA48 DA52 DA90 FA06 3F062 AB03 BA08 BC03 BD01 BE02 BF03 BF31 BG04

Claims (1)

[Claims] An advancing film is attached to a running film sticking object by a sticking roll, and the film is cut by a cutter immediately after the object passes through the sticking roll. In a pasting device in which a baffle member for preventing the cut end from being wound around the affixing roll is disposed between the affixing roll and the cutter, conductivity is imparted to the baffle member. Film sticking device.