KR20200037961A - Attaching apparatus for film on glass using air - Google Patents

Abstract

The present invention relates to an air-type film attaching device for attaching a film to a glass plate using air and, more specifically, to an air-type film attaching device for attaching a film to a glass plate while curing an adhesive using high-pressure cold air after heating the adhesive using a warm current of air.

Description

Air-type film attachment device {ATTACHING APPARATUS FOR FILM ON GLASS USING AIR}

The present invention relates to an air-type film attaching device for attaching a film to a glass plate using air, and more specifically, after applying heat to the adhesive using warm air, while curing the adhesive using a high-pressure cold air to make the film a glass plate. It relates to an air-type film attachment device to be attached to.

In general, there are two main methods of attaching a film to glass, such as a dry type and a wet type.

In the case of dry type, air remains in some areas in the process of attaching the film to the glass, thereby forming bubbles. Therefore, there was a problem in that the film was not attached to the glass and was lifted up, so that it was not effectively attached and the appearance was not good.

On the other hand, in the case of wet, water is supplied between the film and the glass in the process of attaching the film to the glass in order to solve the above problems, and the supplied water prevents air bubbles from forming between the film and the glass in the process of attaching the film. .

However, in the case of wet using water, in the process of attaching the film, the worker must continuously remove water between the film and the glass, and an additional process of drying the supplied water is required.

Therefore, when the film is wetly attached, the generation of bubbles is suppressed, and instead, the water removal and drying process of the worker is required, thereby increasing the time and cost for producing the glass to which the film is attached.

Thus, as shown in FIG. 1, in Korean Patent Registration No. 10-1095492, the crimping unit 110 for adhering the film to the glass, the film transport unit 120 for transferring the release paper from the film to the crimping unit 110, and the glass are transferred. Proposes a configuration including a film attaching machine 100 made of a glass transfer unit 130.

Particularly, as shown in FIG. 2, the steam supply unit 140 is supplied before the film 102 from which the release paper 103 is peeled is supplied to the pressing unit 110 made of a pair of upper and lower rollers 111 and 112 to attach to the glass. Steam is sprayed on the adhesive side of the film by using.

Therefore, in the film attaching apparatus 100 as described above, instead of spraying water directly, by spraying steam, it is possible to significantly reduce the drying time while preventing air bubbles from forming between the glass and the film.

However, the steam used in Korean Patent Registration No. 10-1095492 as described above is to artificially mix and spray small particles of water, and still uses water, which requires a separate drying time.

In addition, since the film is attached to the glass by applying a strong force at a time using a pressing roller immediately after spraying steam onto the film, a problem that the film is misaligned with the glass frequently occurs.

Korean Registered Patent No. 10-1095492 Korean Registered Patent No. 10-1270943

The present invention is to solve the above-mentioned problems, and after applying heat to the adhesive using warm air, it is intended to provide an air-type film attaching device for attaching a film to a glass plate while curing the adhesive using a high-pressure cold air.

To this end, the air-type film attaching device according to the present invention comprises: a film attaching device for attaching a film to a glass plate, comprising: a crimping roller unit for compressing and bonding the film to an upper surface of the glass plate; A glass plate conveying part for putting the glass plate on the upper part of the conveying roller and transferring it to the pressing roller part; A film transfer unit for transferring only the film to the compression roller unit while removing the release paper attached to the film; A hot air jet unit installed on the upstream side of the compression roller unit and applying heat to the adhesive applied to the bonding surface of the film to apply heat to the adhesive; It is characterized in that it comprises; and installed between the compression roller portion and the warm air blowing portion, applying a high pressure cold air toward the outer surface of the film to press the film onto the glass plate.

At this time, the nozzle portion of the warm air injection portion is installed to be inclined upward toward the downstream side with the compression roller portion to apply heat to the adhesive, and the nozzle portion of the cold air injection portion is installed to be inclined downward toward the upstream side where the warm air injection portion is installed to cool the air. It is preferable to press the outer surface of the film as if sweeping it with a broom, cool the adhesive, and preliminarily bond it before finally bonding it in the pressing roller portion.

In addition, an inspection camera for photographing the film bonding surface; A bubble detection unit that analyzes an image captured by the inspection camera and detects any one or more of the number and size of bubbles existing between the glass plate and the film; And a controller configured to increase the temperature of the warm air supplied to the warm air injection unit and increase the intensity of the cold air supplied to the cold air injection unit when the number of the bubbles is large or large when receiving the detection value of the bubble detection unit. desirable.

In addition, it is installed on the upstream side of the warm air injection unit, and is installed inclined downward toward the upstream side, thereby injecting and pressurizing high-pressure air to the glass plate being transported, thereby suppressing up and down vibrations of the glass plate being transported by the transfer roller and foreign matter on the surface of the glass plate It is preferable to further include an air pressurizing portion for removing the.

In addition, the glass plate transfer portion is provided on both sides of the glass plate in the left and right sides in the width direction, and includes a guide for pressing both sides of the glass plate, wherein the guide is moved forward and backward toward the glass plate according to the width of the glass plate to adjust the position. It is preferred.

In the present invention as described above, after applying heat to the adhesive using warm air, the film is attached to the glass plate while curing the adhesive using a high-pressure cold air. Therefore, while preventing the generation of air bubbles, there is no need for a separate drying process after the film is attached, and it is pre-bonded with high-pressure cold air to correct the posture, and finally, a firm adhesion is achieved with a compression roller.

1 is a perspective view showing a film compactor according to the prior art.
FIG. 2 is a partial view showing the steam supply unit of FIG. 1.
3 is a schematic configuration diagram showing an air-type film attachment device according to the present invention.
Figure 4 is a perspective view showing a warm air injection unit and a cold air injection unit according to the present invention.
5 is a view showing an inspection unit according to the present invention.
6 is a view showing the bubble shooting state in FIG. 5.
7 is a view showing a glass plate guide according to the present invention.

Hereinafter, an air-type film attachment device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3, the air-type film attachment device 200 according to the present invention is for attaching the film (F) to the glass plate (G), the pressing roller unit 210, the glass plate transfer unit 220, the film transfer unit 230 , Includes a hot air jet 240 and a cold air jet 250.

At this time, as another preferred embodiment, the inspection camera 261, the image processing unit 261a, air bubbles to adjust the air temperature and intensity of the warm air jet 240 and the cold air jet 250 according to the attachment state of the film F A detection unit 262 and a controller 263 are further included.

As another preferred embodiment, the glass plate (G) by the glass plate conveying unit 220 further includes an air pressing unit 270 and a guide 280 to prevent the posture of the glass plate (G) from being distorted due to vibration during transport during transportation. do.

The air-type film attachment device 200 of the present invention having the above-described configuration applies heat to the adhesive applied to the film (F) using warm air, and then cures the film (F) while curing the adhesive using high-pressure cold air. It is attached to the glass plate (G).

Therefore, while preventing the generation of bubbles on the adhesive surface, there is no need for a separate drying process after attaching the film (F), and it is pre-bonded with high-pressure cold air to correct the posture, and finally, a firm adhesion is achieved in the crimping roller unit 210. do.

In addition, the image of the adhesive surface photographed by the inspection camera 261 is processed by the image processing unit 261a, and when air bubbles are detected as a result, the temperature of the hot air is raised by the controller 263 to increase the fluidity of the adhesive and increase the cold air intensity. To increase the compression force.

Therefore, it is possible to automatically create an optimum film (F) attachment environment that suppresses the generation of bubbles while increasing the adhesion of the film (F) adhered to the glass plate (G). In addition, the film (F) is accurately attached to the glass plate (G) in which the posture is maintained by the air pressure unit (270) and the guide (280).

In more detail, the crimping roller portion 210 is to bond the film F to the upper surface of the glass plate G by bonding it to the upper crimping roller 211 and the lower portion disposed thereon as shown. It consists of a pair of lower crimping rollers 212 arranged.

As is known, the spacing between the upper crimping roller 211 and the lower crimping roller 212 is adjusted according to the thickness of the glass plate G and the film F, and is usually lowered by raising and lowering the upper crimping roller 211 The relative spacing between the rollers 212 is adjusted.

At this time, the glass plate (G) is input by the glass plate transfer unit 220, and at the same time, the film (F) is input by the film transfer unit 230, the film (F) on the glass plate (G) is laminated in the crimp roller unit When passing through the 210, compression and adhesion is achieved.

The crimping roller portion 210 corresponds to a secondary crimping portion or a final bonding portion, and is provided to a subsequent crimping roller portion 210 after primary crimping or pre-bonding by the cold air blowing portion 250 as described below. do.

Next, the glass plate transfer unit 220 is for transferring the glass plate (G) to the crimping roller unit 210 is bonded as described above, for example, a roller in a state where the glass plate (G) is placed on the transfer roller 221 The transfer is made by rotation.

The above-described transport rollers 221 may be installed with transport rollers 221 installed at regular intervals along base frames disposed in the width directions of the left and right sides perpendicular to the transport direction of the glass plate G.

At this time, at least one or more of the plurality of transport rollers 221 may be applied with a driving roller connected to a motor, and all transport rollers 221 may be simultaneously driven by a chain connected to the driving roller.

In addition, a conveyor belt is mounted on the transfer roller 221 as described above, and the glass plate G is transferred while the glass plate G is placed on the conveyor belt rotating along the caterpillar by the transfer roller 221. It might be.

The film transfer unit 230 is to transfer only the film F to the pressing roller unit 210 while removing the release paper (peel paper) P attached to the film F, for example, a supply roller 231, a product It includes a 1 tension roller 232, a winding roller 233 and a second tension roller 234.

At this time, the supply roller 231 is wound with a release paper (P) on the film (F) in a laminated state, so that the film (F) wound on the supply roller (231) is released and the release paper (P) is removed and then the glass plate (G ), Only the film (F) attached to the crimping roller is supplied.

Particularly, the film (F) supplied after the release paper (P) is removed is supplied in a direction in which the adhesive-coated adhesive surface faces the glass plate (eg, below the drawing), where the bonding surface will be described later. It is exposed to the warm air jet 240.

On the other hand, the first tension roller 232 is installed in a position to press the tension to release the release paper (P) separated from the film (F), the winding roller 233 is guided by the first tension roller (232) The release paper P is wound up and collected. To this end, the first tension roller 232 and the winding roller 233 are properly adjusted to a position to apply tension to the release paper P.

The second tension roller 234 is installed to apply tension while the film F, from which the release paper P is separated, is transferred to the compression roller unit 210. For example, the second tension roller 234 presses the outer surface without the adhesive among the films F released from the supply roller 231 to be supplied after the direction is changed.

Next, the warm air jet 240 is separately dried because the film F is preliminarily adhered to the glass plate G together with the cold air jet 250 described later, and air is used instead of water or steam. It is a key component that makes the process unnecessary.

To this end, the hot air jet unit 240 is installed on the upstream side of the crimping roller unit 210 to act before the film F adhesion, and the nozzle unit is installed to face the adhesive surface coated with the adhesive in the film F. Therefore, warm air is applied to the adhesive applied to the bonding surface of the film F to heat the adhesive.

As shown in FIG. 4 (a), the warm air injection unit 240 is, for example, a hot air pipe 241 having a flow path through which air flows, and a nozzle unit 242 provided on one side of the hot air pipe 241, and It includes a warm air supply 243 for supplying warm air at a temperature set by the warm air tube 241.

At this time, the nozzle unit 242 may be formed by installing a plurality of separate nozzles, but may be formed by continuously cutting and opening one side of the hot air pipe 241, and the nozzle unit 242 is joined to the film F It is installed to face.

The hot air supply 243 is to supply hot air heated by compression or a separate heater by a compressor, and is connected to the hot air pipe 241 through a hose and a valve to warm air supplied to the hot air pipe 241 It is ejected through this nozzle part 242.

Therefore, the adhesive applied to the film (F) is melted by warm air to increase the viscosity, and the adhesive with the increased viscosity replaces the role of conventional water or steam. Let the drying process be omitted.

However, it is preferable to set an appropriate temperature in consideration of the type of adhesive applied to the film F and the temperature of the place where the film F is attached. That is, if the temperature is too high, the liquefaction of the adhesive proceeds and flows down, and if the temperature is too low, it is difficult to improve the adhesive properties as described above, so an appropriate temperature is set.

Next, the cold air injection unit 250 cools the film F heated by the warm air sprayed from the above-described hot air injection unit 240, and simultaneously pressurizes the film F with high pressure to form a film on the glass plate G ( F) is preliminarily attached.

To this end, the cold air injection unit 250 is installed between the above-described compression roller unit 210 and the hot air injection unit 240, but by applying high-pressure cold air toward the outer surface of the film F, the film F is a glass plate ( G) Let it pressurize and adhere to the stomach.

As shown in FIG. 4 (b), the cold air injection unit 250 is similar to the warm air injection unit 240 described above, and a cold air pipe 251 having a flow path through which air flows is formed, and one side of the cold air pipe 251. It includes a nozzle unit 252 provided in the cold air supply 253 for supplying warm air at a temperature set by the cold air pipe 251.

That is, the cold air injection unit 250 is different from the hot air injection unit 240 in that it cools cold air at a low temperature. For supply of cold air, outside air can be introduced in winter and heat pumps can be used in summer.

In particular, the warm air blowing unit 240 has a relatively wide opening in the nozzle unit 242 to blow weak wind to suppress the shaking of the film F, while the cold air blowing unit 250 cools the film F with strong wind and Pressurized to cure the adhesive heated by warm air, and at the same time, the film F is attached.

In addition, the nozzle unit 242 of the warm air jet unit 240 faces the downstream side of the squeeze roller unit 210, but is installed to be inclined upward, while applying heat to the adhesive applied to the film F, the cold air jet unit ( The nozzle portion 252 of 250) is installed to be inclined downward while looking at the upstream side where the warm air blowing portion 240 is located.

Therefore, the outer surface of the film (F) with the cold air of the cold air injection unit 250 (opposite side of the adhesive surface) is swept with a broom, and the heated adhesive is cooled to finally bond in the compression roller unit 210. Allow it to adhere beforehand.

Through this, after the film F is preliminarily adhered to match the correct position of the glass plate G in the cold air injection unit 250, it is finally attached with strong force by the subsequent pressing roller unit 210. , It suppresses the occurrence of air bubbles and the like, and enables accurate attachment.

On the other hand, as shown in Figure 5, the present invention analyzes the effect of the hot air and cold air on the bonding surface to adjust to the optimal film (F) bonding state inspection camera 261, image processing unit 261a, bubble detection unit 262 and a controller 263.

To this end, the inspection camera 261 photographs the bonding surface of the glass and the film (F). It is preferable that the bonding surface is inspected before the final adhesion is preferably made by the pressing roller unit 210 after the pre-bonding is performed.

In the present invention, the influence of the compression roller unit 210 may be considered by inspecting after the compression roller unit 210, but preferably, only the influence of the warm air injection unit 240 and the cold air injection unit 250 is considered. An inspection camera 261 is installed between the cold air injection unit 250 and the compression roller unit 210.

After the film (F) bonding surface is photographed by the inspection camera 261 as described above, image data on the photographed bonding surface is provided to the image processing unit 261a, and the image processing unit 261a performs image processing. The image processing uses a method suitable for detecting bubbles.

As shown in FIG. 6, the bubble detection unit 262 analyzes an image captured by the inspection camera 261 to detect any one or more of the number and size of bubbles existing between the glass plate G and the film F. That is, it detects whether there are many bubbles on the bonding surface or if the bubble is large even if there are few bubbles, and if necessary, all of them are detected.

Although there are various image analysis techniques for analyzing bubble detection, representatively, it is possible to detect by analyzing the number of borders or the boundary area between black and white by using a point where the bubbled portion is whiter than the other joint surface.

When the number of bubbles is large or large, the controller 263 receives the detection value of the bubble detection unit 262 to increase the temperature of the warm air supplied to the warm air injection unit 240, and of the cold air supplied to the cold air injection unit 250. Increases intensity.

The temperature of the hot air and the intensity of the cold air can be controlled by controlling the hot air supply 243 and the cold air supply 253. When the temperature of the hot air is increased, the adhesive is further heated to increase the viscosity, and when the strength of the cold air is increased, the pressing force is increased.

Of course, the present invention is not limited to the above control, and further considers the distribution of air bubbles, the location of occurrence on the adhesive surface, etc., and further classifies the number and size of air bubbles to lower the warm air temperature and cold air intensity. Adjustment is also possible.

Furthermore, the air pressurization unit 270 is for preventing the shaking of the glass plate G, and the hot air jet unit 240 so as not to interfere with hot air jetting from the hot air jet unit 240 and pressing in the cold air jet unit 250 ) On the upstream side, the injection side is installed to be inclined downward.

Therefore, by injecting and pressurizing high-pressure air to the glass plate G being transported, the vertical vibration of the glass plate G by the transport roller 221 is suppressed. In addition, by shooting the air in the opposite direction to the side where the bonding is made to remove foreign substances such as dust on the surface of the glass plate (G).

As shown in FIG. 7, the guides 280 are installed on the above-mentioned glass plate transport unit 220, and are provided on both sides of the glass plate G in the left and right sides in the width direction to press both sides of the glass plate G.

That is, as shown in FIG. 1, the glass plate conveying unit 220 is provided with a guide 280 that presses the side surface of the glass plate G in at least one location to guide the linear movement of the glass plate G at regular intervals.

At this time, when the guide 280 is installed between different devices, it is installed at a position lower than the thickness of the glass plate G so as not to interfere with the operation of the devices so as not to protrude above the upper surface of the glass plate G.

In addition, the position of the guide 280 is adjusted by moving forward and backward toward the glass plate G to be adjustable according to the width of the glass plate G. The operation of the guide 280 can be implemented through a cylinder or various gear assemblies, and is preferably interlocked so that the guides 280 on both sides of the left and right sides operate simultaneously.

In the above, specific examples of the present invention have been described above. However, the spirit and scope of the present invention is not limited to these specific embodiments, and various modifications and variations are possible within a range that does not change the gist of the present invention. If you grow up, you will understand.

Therefore, the above-described embodiments are provided to completely inform the scope of the invention to those skilled in the art to which the present invention pertains, and should be understood as illustrative in all respects and not restrictive. The invention is only defined by the scope of the claims.

210: crimping roller portion
220: glass plate transfer unit
230: film transfer unit
240: warm air jet
250: cold air jet
261: inspection camera
261a: image processing unit
262: bubble detection unit
263: controller
270: air pressure
280: Guide
G: Glass plate
F: film
P: Hyungji Lee

Claims (5)

In the film (F) attachment device for attaching the film (F) to the glass plate (G),
A crimping roller portion 210 for crimping and bonding the film F to the upper surface of the glass plate G;
A glass plate conveying unit 220 for raising the glass plate G on the upper portion of the conveying roller 221 and transferring it to the crimping roller unit 210;
And while removing the release paper (P) attached to the film (F), the film transfer unit 230 for transferring only the film (F) to the compression roller unit 210;
A hot air jet unit 240 installed on the upstream side of the compression roller unit 210 and applying heat to the adhesive applied to the bonding surface of the film F to heat the adhesive; And
It is installed between the crimping roller unit 210 and the hot air jet unit 240, the cold air jet unit that pressurizes the film (F) onto the glass plate (G) by applying high pressure cold air toward the outer surface of the film (F) 250); Air-type film attachment device comprising a. According to claim 1,
The nozzle unit 242 of the warm air jet unit 240 is installed to be inclined upward toward the downstream side where the crimping roller unit 210 is applied to heat the adhesive,
The nozzle unit 242 of the cold air injection unit 250 is installed to be inclined downward toward the upstream side where the warm air injection unit 240 is located, and presses the outer surface of the film (F) with cold air as if sweeping the air. The air-type film attachment device characterized in that the adhesive is cooled and preliminarily adhered before the final adhesion in the compression roller part (210). According to claim 2,
An inspection camera 261 photographing the bonding surface of the film (F);
A bubble detection unit 262 that analyzes an image photographed by the inspection camera 261 and detects any one or more of the number and size of bubbles existing between the glass plate G and the film F; And
When the detection value of the bubble detection unit 262 is received, if the number of bubbles is large or large, the temperature of the warm air supplied to the warm air injection unit 240 is increased, and the intensity of cold air supplied to the cold air injection unit 250 is increased. Controller for increasing the (263); Air-type film attachment device further comprising a. The method according to any one of claims 1 to 3,
It is installed on the upstream side of the warm air blowing unit 240, and is installed inclined downward toward the upstream side, thereby injecting and pressurizing high-pressure air to the glass plate G being transported, so that the glass plate G being transported by the transport roller 221 Air suppression unit for suppressing the up and down vibration of the glass plate (G) to remove foreign substances on the surface; air-type film attachment device further comprising a. According to claim 4,
The glass plate conveying unit 220 includes guides 280 provided on both sides of the glass plate G in the width direction left and right, and pressing both sides of the glass plate G, wherein the guide 280 is the glass plate G Air film attachment device, characterized in that the position is adjusted by moving forward and backward toward the glass plate (G) according to the width of the.

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