KR101560221B1 - Film laminator of automatic exhausting bad sector - Google Patents

Abstract

The present invention relates to a film laminate device for automatically discharging a defective area, and is characterized in that a film fed from a substrate and a film feeding part, which are transported on an accompaniment furnace at regular intervals, are passed between laminate parts provided in the above- A film lamination apparatus for attaching a film on a surface of a substrate, the apparatus comprising: detection means for detecting a defective mark of the film before the film is laminated on the substrate; A cutting means for partially cutting the defective region of the film when the detecting means detects a defective mark of the film; A defective area discharging part formed adjacent to the laminated part and discharging a defective area from the film supplied by the film supplying part; And a control unit for controlling the defective area discharging unit and the lamination unit to discharge the defective area of the film using the defective area information supplied from the detecting unit. In the case where defects occur in the supply film in the conventional art, Since the film corresponding to one minute is discarded, the portion other than the defective region of the film is wasted. However, the present invention has the effect of preventing the portion other than the defective region of the film from being wasted.
In addition, by attaching only a good region of the film to the substrate, it is possible to reduce the number of disposal of the substrate normally.
Further, since the defective area of the film is automatically discharged from the defective area discharge part, the productivity is improved.
Further, since the process can be performed with the second release film (protective film) attached before the film is laminated, it has an effect of avoiding adhesion of dust or the like and improving the quality.
In addition, according to the present invention, the second release film, which is peeled off while supplying the film in the film supply unit, can be recycled while discharging the defective area of the film.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a film laminator for automatically discharging a defective area,

The present invention relates to a film laminate apparatus, and more particularly, to a film laminate apparatus for automatically detecting a defective area of a film and discharging only a defective area of the film and attaching a good area to the substrate.

The present invention relates to a film laminate device for automatically discharging a defective area used in a process of joining a substrate to a flexible film or a polarizer in a process of manufacturing a liquid crystal display.

There has been a method of attaching a single film cut to a size similar to a panel to a substrate by a method of laminating a film and a substrate, but a method of continuously supplying a roll type film is mainly used in order to reduce the material cost.

Conventionally, in a roll type film laminate apparatus, an optical monitoring apparatus for monitoring the surface state of the substrate after lamination of the film on the downstream side of the lamination apparatus is provided, and if defects occur, both the film and the substrate are discarded. At this time, the substrate is normal but the film is defective in most cases. Since the laminated substrate is difficult to reuse even if the film is peeled off, there is a problem that the normal substrate is discarded due to film failure.

In order to solve the above problems, there has been studied a method of inspecting the state of the film before film lamination and attaching only the normal region without attaching the defective region to the substrate.

Patent Publication No. 10-1998-0701136

SUMMARY OF THE INVENTION An object of the present invention is to provide a film laminate device which detects a defective area of a film and discharges only a defective area of the film and attaches a good area of the film to the substrate.

In order to achieve the above object, the present invention provides a film laminate apparatus for automatically discharging a defective area, comprising: a substrate feeder for feeding a film fed from a film feeder to a substrate, Wherein the film is laminated on the surface of each of the substrates by passing the film on the surface of the substrate, characterized by comprising: detecting means for detecting a defective mark of the film before the film is laminated on the substrate; A cutting means for partially cutting the defective region of the film when the detecting means detects a defective mark of the film; A defective area discharging part formed adjacent to the laminated part and discharging a defective area from the film supplied by the film supplying part; And a control unit for controlling the defective area discharging unit and the lamination unit so as to discharge the defective area of the film using the defective area information supplied from the detecting unit, wherein the defective area discharging unit includes a release mold for supplying the first release film A film supply roller; A forward / backward roller for attaching the first release film supplied by the release film feed roller to a defective area of the film; Forward and backward means connected to the forward and backward rollers to forward and reverse the forward and backward rollers; And a release film recovery roller for winding the first release film on which the defective area of the film is adhered by the forward and backward rollers.

A film laminate apparatus for attaching a film on a surface of each substrate by passing a film fed from a film feeding section and each substrate conveyed on an accompaniment furnace at regular intervals between lamination sections provided on the lamination furnace, Detecting means for detecting a defective mark of said film before said film is laminated; A cutting means for partially cutting the defective region of the film when the detecting means detects a defective mark of the film; A defective area discharging part formed adjacent to the laminated part and discharging a defective area from the film supplied by the film supplying part; And a control unit for controlling the defective area discharging unit and the lamination unit so as to discharge the defective area of the film using the defective area information supplied from the detecting unit, wherein the defective area discharging unit discharges the defective area of the film to a vacuum A vacuum adsorbing portion for adsorbing the adsorbent; A forward / backward means coupled to one end of the vacuum adsorption unit to forward / backward the vacuum adsorption unit; And a defective film collection box for receiving and storing defective areas of the film adsorbed by the vacuum adsorption part.

The film may be any one of a polarizing plate film, a retardation film, and a brightness enhancement film.

And the cutting means partially cuts the film with a predetermined length according to the number of defective marks recognized by the detecting means.

According to the film laminate apparatus for automatically discharging the defective area of the present invention, when a feed film is defective in a conventionally known technology, the film corresponding to one sheet of the substrate is discarded, so that the portion other than the defective area of the film is wasted However, since the present invention discharges only a defective region of the film, it is possible to prevent a portion other than the defective region of the film from being wasted, thereby reducing the material cost of the film.

In addition, by attaching only a good region of the film to the substrate, it is possible to reduce the number of disposal of the substrate normally.

Further, since the defective area of the film is automatically discharged from the defective area discharge part, the productivity is improved.

Further, since the process can be performed in a state in which the second release film is further adhered until just before the film is laminated, it has an effect of avoiding adhesion of dust or the like and improving quality.

In addition, according to the present invention, the second release film, which is peeled off while supplying the film in the film supply unit, can be recycled while discharging the defective area of the film.

1 is a schematic view showing a film lamination apparatus for automatically discharging a defective area according to a first embodiment of the present invention.
2 is a view showing a structure of a film used in the present invention.
3 is a schematic view showing a state in which the film is partially cut by the cutting means of the present invention.
4 is a schematic view showing the operation sequence of the defective area discharging portion of the present invention.
5 is a schematic view showing a film lamination apparatus for automatically discharging a defective area according to a second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 to 4, a film laminate apparatus for automatically discharging a defective area according to the present invention comprises a substrate 2 fed from a film feeder 10 and a substrate 2 fed on a conveyor belt A film laminate apparatus for passing a film (1) between laminate portions (40) provided in the above-mentioned conveying path to adhere a film (1) on the surface of each substrate (2), comprising: detecting means (20); Cutting means (30); A defective area discharging part (50); And a control unit (60), wherein the defective area discharging unit (50) includes a release film supply roller (501); A forward / backward roller 502; Forward and backward means 504 and a release film collection roller 503.

The film laminate device for automatically discharging the defective area of the present invention is a device for attaching a roll type film to a panel during a process of manufacturing a large LCD module.

The accompaniment is made up of roller conveyors 701.

The conveyor path may include a substrate conveyor 702 on the roller conveyors 701.

The substrate conveyor 702 is installed to be movable up and down and horizontally reciprocated.

The substrate transfer device 702 preferably employs a vacuum adsorption method.

The substrate conveyor 702 can lift the substrate 2 through vacuum suction and supply it to the laminate roller 401.

 In addition, the substrate 2 can be supplied to the laminate portion 40 by a roller conveyor 701.

The substrate 2 to which the film 1 is attached is conveyed by a roller conveyor 701.

As shown in Fig. 2, the second release film 1a is attached to the film 1 in order to prevent foreign matters such as dust from adhering to the film.

Further, the width of the film (1) is set according to the width of the substrate (2).

The film supply unit 10 includes a supply roller 101, guide rollers 102, driving rollers 103, an EPC roller 104, a release film peeling member 105, a nip roller 107 , And a collection roller 108. [

The driving roller 103 is driven by a motor.

The film 1 is mounted on the feeding roller 101 in a roll-curled state.

The film (1) is mounted on the feed roller (101) so that the adhesive side of the film (1) faces downward when the film (1) is loosened by the feed roller (101). The adhesive surface of the film 1 is conveyed downwardly, so that dust or the like is prevented from adhering to the film 1 during the transfer to the laminate portion 40. [

When the film 1 is unwound from the feeding roller 101, the film 1 is conveyed to the detecting means 20, the cutting means, the EPC rollers 102, (Not shown).

Thereafter, the film 1 is peeled off from the second release film 1a while being pressed by a knife edge (not shown) attached to one end of the release film peeling member 105, Is recovered by the collection roller 108 via the nip roller 107. [

The film (1) from which the second release film (1a) has been peeled is supplied to the laminate part (40).

The EPC roller 104 adjusts the pitch with the substrate 2 supplied on the conveying path while the cutting means partially cuts the film 1 as the position is moved.

The detecting means (20) detects a defective mark of the film (1) before the film (1) is laminated on the substrate (2).

The defective mark is previously engraved in the center of the film where the defects are generated by using an ink jet.

The detecting means 20 is preferably an optical sensor (not shown).

Further, the detecting means (20) is located on the film supplying section (10).

The detection means 20 recognizes the presence of the defective mark on the film 1 that has passed through the feeding roller 101, the guide roller 102 and the driving roller 103.

The cutting means (30) partially cuts the defective region of the film (1) when the detecting means (20) detects a defective mark of the film (1).

In addition, the cutting means 30 may be a cutter knife or laser capable of horizontal reciprocating movement.

Further, the cutting means (30) is located on the film supply part (10).

As shown in Fig. 3, the partial cutting (half cutting) is a process in which only the film 1 is completely cut while cutting in the width direction of the joined body in which the film 1 and the second release film 1a are joined.

If the second release film (1a) is peeled off at the time of discharging the defective film in the defective discharge portion (50), the defective film is cut off and can be easily discharged. When the second release film Is not cut, and there is no restriction on the conveyance of the roll-type film 1.

When the film is partially cut by the cutting means 30, the position of the EPC roller 104 is shifted to adjust the pitch with the substrate 2 supplied on the conveying path.

The laminate portion 40 is composed of a laminate roller 401, a driving roller 402, and a lifting means (not shown).

The laminate roller 401 is preferably made of a rubber roller and is a portion directly contacting the film 1 and the substrate 1. [

The driving roller 402 is driven by a motor and provides a driving force to the laminate roller 401.

The laminate roller 401 and the driving roller 402 further include lifting means (not shown).

The elevating means (not shown) preferably comprises a pneumatic cylinder or a hydraulic cylinder.

The first release film 1a adhered to the film 1 is peeled off and the film 1 exposed to the adhesive is led through the laminate rollers 401 and then the substrate 2 is also fed The laminate roller 401 located on the upper side of the laminate roller 401 descends and the laminate roller 401 located on the lower side moves up to compress the film 1 and the substrate 2 and attach them.

The control unit 60 controls the defective area discharge unit 50 and the laminate unit 40 so as to discharge the defective area of the film 1 using the defective area information supplied from the detection unit 20. [

The defective area discharging part 50 is formed adjacent to the laminate part 40 to discharge the defective area from the film 1 supplied by the film supplying part 10.

The defective area discharging unit 50 includes a release film feed roller 501, a forward / backward roller 502, forward / backward means 504 and a release film collection roller 503.

The release film feed roller 501 feeds the first release film 1b while the first release film 1b is rolled up and mounted.

The first release film 1b can recycle the second release film 1a peeled off from the film 1.

The forward and backward rollers 502 attach the first release film 1b supplied by the release film feed roller 501 to the defective area of the film 1. [ A pressure sensitive adhesive is applied to one surface of the first release film 1b to adhere the defective area of the film 1 to the first release film 1b.

The forward / backward means 504 is connected to the forward / backward rollers 502 to advance / retract the forward / backward rollers 502.

The forward / reverse means 504 comprises a pneumatic cylinder or a hydraulic cylinder.

The release film collection roller 503 winds the first release film 1b to which the defective region of the film 1 is attached by the forward and backward rollers 502.

The operation of the defective area discharge unit 50 will be described below.

The second release film 1a is peeled off by the release film peeling member 105 while the defective area of the film 1 is partially cut by the cutting means 30 and supplied to the laminate portion 40 do.

4 (a), the upper side of the laminate roller 401 and the driving roller 402 are raised and the lower side of the laminate roller 401 and the driving roller 402 are lowered.

4 (b)), the forward and backward rollers 502 are advanced to the laminate portion 40 so that one end of the defective area of the film 1 and the adhesive of the first release film 1b Allow the coated surface to contact.

Thereafter, the defective area of the film 1 attached to the first release film 1b is recovered to the release film recovery roller 503 side by the rotation of the release film recovery roller 503 and the forward / backward roller 502 do.

Thereafter, as shown in FIG. 4C, the forward / backward roller 502 is moved backward and returned to its original position, and the laminate roller 401 and the driving roller 402 are returned to their original positions.

In the conventional art, when the supply film is defective due to the film supply unit, defective surveillance unit, adhesion unit, and film recovery unit, the film recovery unit recovers the film corresponding to one substrate, However, according to an embodiment of the present invention, such a problem can be solved.

According to an embodiment of the present invention, the release film can be recycled while supplying the film in the film supply unit.

In addition, by attaching only a good region of the film to the substrate, it is possible to reduce the number of disposal of the substrate normally.

Further, since the defective area of the film is automatically discharged from the defective area discharge part, the productivity is improved.

Further, since the process can be performed in a state in which the release film (protective film) is further attached before the film is laminated, it has an effect of avoiding adhesion of dust or the like and improving the quality.

Hereinafter, a second embodiment of the present invention will be described with reference to the accompanying drawings, wherein like reference numerals are used to designate like or corresponding parts to those of the first embodiment, and redundant description thereof will be omitted.

5 is a schematic view showing a film lamination apparatus for automatically discharging a defective area according to a second embodiment of the present invention.

5, a film laminate apparatus for automatically discharging a defective area according to the present invention includes a substrate 2 fed from a film feeding section 10 and a substrate 1 fed from a film feeding section 10, (1) on the surface of each substrate (2) by passing the film (1) between the laminate portions (40) provided in the above-mentioned conveying path, the film laminate apparatus comprising: detecting means (20); Cutting means (30); A defective area discharging part (50); And a control unit 60. The defective area discharge unit 50 includes a vacuum adsorption unit 505, a forward / backward unit 506, and a defective film collection box 507.

The vacuum adsorption unit 505 adsorbs the defective area of the film 1 in a vacuum.

The forward / backward means 506 is coupled to one end of the vacuum adsorption unit 505 to evacuate the vacuum adsorption unit 505.

The forward / reverse means 506 may be a pneumatic cylinder or a hydraulic cylinder.

The film collection box 507 receives and stores a defective area of the film 1 adsorbed by the vacuum adsorption unit 505.

The film collection box 507 is preferably located below the forward / backward means 506.

The operation of the defective area discharging part 50 according to the present embodiment is as follows.

The second release film 1a is peeled off by the release film peeling member 105 while the defective area of the film 1 is partially cut by the cutting means 30 and supplied to the laminate portion 40 do.

After this, the upper side of the laminate roller 401 and the driving roller 402 are raised, and the lower side of the laminate roller 401 and the driving roller 402 are lowered.

Thereafter, the vacuum adsorption unit 505 is advanced by the forward / backward means 506 to come close to the release film peeling member 105, and the defective region of the film 1 is adsorbed by the vacuum adsorption of the vacuum adsorption unit 505 Absorbed.

Thereafter, the vacuum adsorption unit 505 is backwardly moved by the forward / backward means 506 and the defective region of the film 1 adsorbed by the vacuum adsorption unit 505 is stored in the film collection box 507. [

According to the present embodiment, the defective area discharging portion 50 can be configured without using the first release film 1b, and the defective area of the film 1 can be easily discharged.

The film (1) is characterized by being one of a polarizing plate film, a retardation film and a brightness enhancement film.

Characterized in that the cutting means (30) partially cuts the film (1) with a predetermined length according to the number of defective marks recognized by the detecting means (20).

For example, if the number of defective marks is 1, 100 mm is cut, and if 2 defective marks are 2, 200 mm can be cut.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

1: Film 1a: Second release film
1b: first release film 2: substrate
10: film supply unit 20: detection means
30: Cutting means 40: Laminate part
50: defective area discharging part 60:
101: Feed roller 102: Guide roller
103: driving roller 104: EPC roller
105: release film peeling member 107: nip roller
108: collection roller 401: laminate roller
402: drive roller 501: release film feed roller
502: forward and backward roller 503: release film recovery roller
504: forward / backward means 505: vacuum suction portion
506: forward / backward means 507: defective film collection box
701: Roller conveyor 702: Substrate conveyor

Claims (4)

Each of the substrates 2 and the film 1 attached to the second release film 1a are supplied from the film supply unit 10 and the film 1 is transported on the accompaniment path at regular intervals, A film laminate device for attaching a film (1) on the surface of each substrate (2) by passing between laminate portions (40)
Detection means (20) for detecting a defective mark of the film (1) before the film (1) is laminated on the substrate (2);
Cutting means (30) for partially cutting the defective region of the film (1) when the detecting means (20) detects a defective mark of the film (1);
A defective area discharging part 50 formed adjacent to the laminate part 40 and discharging a defective area from the film 1 supplied by the film supplying part 10; And
And a control unit (60) for controlling the defective area discharge unit (50) and the laminate unit (40) so as to discharge the defective area of the film (1) using the defective area information supplied from the detection unit and,

The laminate part (40)
A roller positioned above and below the substrate,
Up and down means for raising and lowering the roller,

The defective area discharging portion (50)
A release film feed roller 501 for feeding the first release film 1b;
A forward / backward roller (502) for attaching the first release film (1b) supplied by the release film feed roller (501) to a defective area of the film (1);
A forward / backward means (504) connected to the forward / backward roller (502) to forward / backward the forward / backward roller (502); And
And a release film recovery roller (503) for recovering a defective area of the film (1) by the forward and backward rollers (502)

When the defective area of the film 1 is supplied to the laminate part 40, the roller located on the upper side of the roller of the laminate part rises and the roller located on the lower side moves down And the forward / backward roller (502) advances to return the defective area of the film (1) to the release film collection roller (503) side.
The film laminate apparatus of claim 1, wherein the roller of the laminate (40) comprises a laminate roller (401) and a driving roller (402).
The film laminate apparatus of claim 2, wherein the laminate roller (401) is made of a rubber roller and is in direct contact with the film.
2. The apparatus according to claim 1, wherein the cutting means (30)
(1) and the second release film (1a) attached to the film (1) at a predetermined length according to the number of defective marks recognized by the detection means (20) And the film is partially cut so as to completely cut only the film (1).

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