KR101997554B1 - Film laminating apparatus for a flat or curved plate member - Google Patents

Abstract

According to one aspect of the present invention, there is provided a film laminating apparatus for a flat or curved plate material, comprising: a first cradle having a suction means for deforming a plate material so as to be adsorbed on a surface; A pressing roll for pressing the film on the surface of the plate material adsorbed on the first stand; A film holder provided on the squeeze roll and fixing the film to be adhered to the surface of the squeeze roll; Support means for movably supporting the press roll; Positioning means for confirming the position of the plate and the film fixed to the press roll; And aligning means for aligning the film and the sheet material based on the position identified by the positioning means.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a film lamination apparatus for a flat plate or a plate having a curved surface,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film laminating apparatus for a plate material having a flat or curved surface, and more particularly, to an apparatus for attaching a film having a predetermined pattern or texture to a surface of a plate material having an arbitrary shape.

The cabinet constituting the outer shape of household appliances such as a refrigerator or a washing machine is processed into a predetermined shape through mechanical processing such as pressing or deep drawing of a panel made of carbon steel or stainless steel.

In order to make these cabinets look more beautiful, they may be given various colors, or they may have a color having two or more tones in order to unify the whole into one color or to enhance the quality. As a method for making the surface of the metal panel having various colors, a method of coating with two colors of paint can be considered, but this method is not used in high-grade products due to low durability and appearance quality.

Alternatively, there is a method of attaching a film having a pattern of a certain type or having a metallic texture to the surface of the panel. This can provide a texture similar to an actual metallic material depending on the quality of the film to be attached, but has a problem that its application range is limited. That is, in the case of home appliances, uneven surfaces such as protrusions and recesses exist, and there are many cases such as flat or curved surfaces, so that it is easy to uniformly apply the film to the panel having such an arbitrary shape not.

1, a conventional film laminating apparatus 10 includes a pair of press rolls 14 disposed on the upper and lower surfaces of a flat plate, a film supply roll 12 for supplying a film to be coated, The film is applied to the surface of the flat plate, and then the cutter 16 cuts the film to a predetermined size. The protective film attached to the back side of the film is wound on the protective film winding roll 18 after the film is peeled off.

The flat plate is washed while sequentially passing through the water supply nozzle 20, the brush 22, the water removal device 24 and the drier 26 and is conveyed to the side of the pressing roll 14 by the roller 30 .

The above-mentioned film laminating apparatus has the advantage that the film can be continuously applied to the flat plate to maintain the uniform quality, and the productivity is high. However, as shown in the figure, the film laminating apparatus is limited to the case where the shape of the member to be coated is flat .

Therefore, in the case of a panel having a curved surface or a protruding portion, the film must be manually applied, but there is a high possibility that the quality is uneven and the productivity is not high.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a film laminating apparatus capable of easily attaching a film to a panel having a projection on the surface of the panel or a curved panel. have.

According to an aspect of the present invention, there is provided a method of manufacturing a plasma display panel, including: a first holder having a suction unit for deforming a plate to be adsorbed on a surface; A pressing roll for pressing the film on the surface of the plate material adsorbed on the first stand; A film holder provided on the squeeze roll and fixing the film to be adhered to the surface of the squeeze roll; Support means for movably supporting the press roll; Positioning means for confirming the position of the plate and the film fixed to the press roll; And aligning means for aligning the film and the sheet material based on the position identified by the positioning means.

In the aspect of the present invention, when the film is adhered to the plate material having a curved surface, the plate material is deformed through the adsorption means provided on the first stand so as to be adsorbed on the surface of the first stand, It is possible to make it possible. As a result, automated film laminating of more various types of plate materials becomes possible, so that uniform quality panels can be obtained and productivity can be improved.

Here, the suction means includes a plurality of suction holes formed on an upper surface of the first holder, And a vacuum pump for forming a negative pressure in the suction hole. In addition, the film holder provided in the pressing roll may have the same configuration.

The supporting means may be configured to move the pressing roll along the film applying direction of the plate material, and in this example, the supporting means includes a rail extending in the longitudinal direction of the first holding plate; A slider installed to move along the rail and to which the press roll is rotatably mounted; A driving motor for rotating the pressing roll; And raising and lowering means for raising and lowering the rail in a vertical direction.

It is also possible to consider an example in which the support means supports the press roll in a vertically movable manner and the first holder is movably provided along the application direction of the film.

The film may be preliminarily trimmed to a predetermined shape, then fed to the surface of the press roll, supplied in a wound state to the film feed roll, applied to the surface of the plate by the press roll, And then trimmed by the cutter.

Further, a metal mesh to be laminated on the surface of the press roll having the film holder may be additionally included. As a result, the deformation of the surface of the plate due to the suction holes provided in the film holder can be minimized. At this time, the metal net may be made of stainless steel.

The pressing roll may be provided with a recess recessed inward from the circumferential surface. In the case where the projection has a protrusion on the surface of the plate material, the recess may allow the protrusion to be accommodated in the recess in the process of applying the film so that the film is applied to the periphery of the protrusion by the compression roll.

Here, the concave portion may include a first incision surface extending toward the center of the pressing roll; And a second incision surface extending from the first incision surface to a circumferential side of the pressing roll. This makes it possible to apply the film using a compression roll even when the surface of the plate is bent vertically or inclined.

According to yet another aspect of the present invention, there is provided a method of manufacturing a plate-like sheet material, comprising: a first cradle having first adsorption means for deforming a plate material so as to be adsorbed on a surface; A second holder having second suction means for causing a film cut in a predetermined shape to be adsorbed on the surface; A pressing roll for attaching the adsorption film to the surface of the second stand, and then pressing the film on the surface of the plate adhered to the first stand; Support means movably supporting the press roll between the first and second cradles; Positioning means for confirming the position of the plate and the film fixed to the press roll; And aligning means for aligning the film and the sheet material based on the position identified by the positioning means.

According to this aspect of the present invention, even if the film to be attached has any shape other than a rectangular shape, it is possible to stably attach the film to the surface of the plate by the compression roll.

Wherein the support means comprises: a rail extending between the first and second platforms; A slider installed to move along the rail and to which the press roll is rotatably mounted; A driving motor for rotating the pressing roll; And raising and lowering means for raising and lowering the rail in a vertical direction.

Then, the film can be supplied to the second holder after being trimmed in advance to a predetermined shape.

According to aspects of the present invention having the above-described structure, the plate member having a curved surface is deformed and adsorbed on the surface of the first holder in a flat shape, thereby enabling the attachment of the film using the pressing roll, It is possible to perform automated film laminating on various types of plate materials, thereby obtaining uniform quality panels and improving productivity.

In addition, a separate holder for adsorbing the film is provided, and a film adsorbed on the holder is adsorbed on the surface of the pressing roll, thereby enabling an automated operation for various types of films.

1 is a perspective view schematically showing a conventional film laminating apparatus.
2 is a side view schematically showing a first embodiment of a film laminating apparatus according to the present invention.
3 is a perspective view showing the compression roll in the embodiment shown in Fig.
4 is a side view showing a process of adsorbing a film in the embodiment shown in FIG.
5 is a side view showing a process of attaching a film in the embodiment shown in FIG.
FIG. 6 is a side view schematically showing a trimming apparatus included in the embodiment shown in FIG. 2. FIG.
7 is a flowchart illustrating a process of attaching a film according to the first embodiment.

Hereinafter, embodiments of the film laminating apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a side view schematically showing a first embodiment of a film laminating apparatus according to the present invention. Referring to FIG. 2, the first embodiment 100 includes a first laminating apparatus 100 for adsorbing and mounting a flat plate 50, And a second holder 120 for adsorbing and mounting the film 60 to be adhered to the flat plate 50.

A plurality of suction holes 112 are formed in the mounting surface 111 of the first mount 110 and a vacuum pump (not shown) for forming a negative pressure in the suction holes 112 is additionally provided. When the vacuum pump is operated, a negative pressure is formed in the suction hole 112 to attract the flat plate 50. Here, the flat plate 50 is formed to have a curved surface as indicated by a dotted line. However, due to the negative pressure of the suction hole 112, the flat plate 50 is attracted toward the stationary surface 111 and deformed into a flat plate shape. The vertical bending portion 51 formed at one end of the flat plate 50 is disposed perpendicular to the stationary surface 111 as shown in FIG.

The first cradle 110 is disposed so as to be movable forward, backward and leftward relative to the ground, and is arranged to be rotatable about the line S1. This movement is realized by the first actuator 114 provided in the cradle 110. The arrangement for movably disposing the first actuator and the first cradle can utilize conventionally known ones, A detailed description thereof will be omitted.

The second cradle 120 is disposed adjacent to the first cradle. A suction hole 122 is also formed in the mounting surface 121 of the second mounting base 120 so as to generate a negative pressure like the first mounting base. The suction hole 122 provided in the second holder 120 is provided as a film holder for attracting and fixing the film 60 to the stationary surface 121.

The first and second cameras 130 and 132 recognize the position of the flat plate 50 so that the first and second cameras 130 and 132 are not shown. To the control unit so that the control unit aligns the film and the flat plate during the film deposition process. The controller is electrically connected to the first actuator to adjust the position of the first holder based on information obtained by the cameras.

A rail 140 is provided on the upper portion of the first and second cradles. The rails 140 are formed longer than the ridges in which the first and second holders are disposed and are vertically movable by a pair of cylinders 141 provided at both ends. The rail 140 is provided with a slider 143 configured to move left and right along the rail. The slider 143 has its own driving means, and its movement is controlled by the control unit.

A pressing roll 150 is rotatably mounted on the lower portion of the slider 143. The squeezing roll 150 is rotated clockwise or counterclockwise in FIG. 2, and is rotatable about a line S2 as a center axis by a driving motor 142 provided on the slider 142 . Accordingly, the pressing roll 150 can be adjusted so as to maintain a predetermined position in the course of adsorbing the film or applying the film to the flat plate. In addition, the pressing roll 150 can be moved to any position among the first and second mounting surfaces.

The cutter roll 150 includes a cutout portion having a first cutout surface 151 extending from the circumferential surface of the press roll 150 to the center and a second cutout surface 151 extending from the end of the first cutout surface 151 And a second incision surface 152 extending in the direction orthogonal to the circumferential surface. The cut-out portion is formed to be able to apply a film to the lower side of the bent portion 51 of the flat plate 50, which will be described later.

3 is a perspective view showing the press roll 150. As shown in the drawing, a plurality of suction holes 153 are formed on the surface of the squeeze roll 150 so that the film can be adsorbed on the surface of the squeeze roll 150, and a stainless steel mesh 154 having a mesh- . The stainless steel mesh 154 is provided to prevent marks from appearing on the surface of the film due to the pressure applied during the adhesion of the film.

In other words, when there is no stainless steel net, when the suction hole 153 formed on the surface of the press roll is pressed onto the flat plate, a mark like the shape of the suction hole is generated. However, It is possible to prevent the suction hole from directly contacting the film. Here, the net is made of stainless steel in consideration of corrosion prevention, but it is not limited thereto and may be made of any material.

FIG. 5 is a side view showing a process of transferring a film 60 adsorbed and fixed to the second holder 120 to the surface of the pressing roll 150. Referring to FIG. 3, the negative pressure formed in the suction hole 122 keeps the film 60 adsorbed on the surface of the second holder. In this state, the pressing roll 150 is positioned such that the point P1 located at the end of the first incision surface 151 is aligned with the left end of the film 50, and then rotated in the direction of the arrow in Fig. And moving the film (50) to the surface of the squeeze roll (150) as it moves.

Here, since the negative pressure applied to the mounting surface of the second mounting table 120 is set to be smaller than the negative pressure applied to the surface of the pressing roll 150, the film 60 is placed on the second mounting table But when the pressing roll is touched, it is detached from the second holding table and is transferred to the pressing roll.

Thus, the entire film is transferred to the surface of the squeeze roll while rotating the squeeze roll 150. The length of the outer circumference of the squeeze roll excluding the cutout is equal to or greater than the length of the film. In Fig. 3, since the length of the film is set to be smaller than the length of the squeeze roll, one end of the film is placed at the position P2 where the second incision surface is not reached.

4 is a side view showing a process of attaching the film attached to the press roll 150 to the flat plate 50. [ Referring to FIG. 4, the squeeze roll is moved from the second cradle to the first cradle by the slider and the rail, and then descends from the upper surface of the first cradle to the flat plate 50.

At this time, the position P1 is aligned so that the bent portion 51 and the flat plate intersect with each other. Then, the pressing roll 150 is rotated in the direction of the arrow to attach the film to the surface of the flat plate 50. At this time, since the length of the film is trimmed according to the length of the flat plate, when the flat plate P1 is aligned to the predetermined position, the flat plate P2 is aligned with the flat plate. Prior to that, a protective film for protecting the adhesive layer applied to the film is attached to the surface of the film. After removing the protective film, the film is attached to the flat plate while rotating and moving the pressing roll 150 in the direction of the arrow.

Here, the negative pressure formed on the press roll is set to be smaller than the adhesive force of the adhesive layer of the film so that the attached film is not transferred again to the press roll.

On the other hand, the film 50 is trimmed to have a desired shape before being placed on the second holder. An example of such a trimming apparatus is shown in Fig. Referring to FIG. 6, the trimming apparatus 200 uses a film 50 fed in a state of being wound around a supply roll 12, and adjusts the tension of the film supplied from the supply roll 12 to an appropriate level And a drawing roll 12 'for drawing the film remaining after being trimmed is provided at the rear end of the tensile roll 212. The drawing roll 12'

The film fed by the feed roll 12 is conveyed into the cutter 220 by a conveyor belt 214 driven by a drive motor 216. The film thus transferred is delivered in a predetermined form by a cutter 222 provided in the cutter 220 and can be cut into an accurate shape by a sensor 224 for checking the length and position of the fed film . A holder 230 is additionally provided at the exit of the cutter 220 to prevent the film from moving during the cutting process.

The films cut by the trimming apparatus 200 as described above are fed one by one to the second holder and attached to the flat plate.

If the width of the film to be attached is constant, for example, in the case of a film having a rectangular shape, the trimming apparatus and the second holder may be omitted. In this case, in the conventional film laminating apparatus shown in Fig. 1, the supply of the flat plate may be supplied in a state of being adsorbed by the first holder instead of the roller 30. [ If there is no bent portion 51 on the flat plate, the cut portion formed on the pressing roll 150 may be omitted and may have a general circumferential shape.

Now, the process of attaching the film to the flat plate according to the first embodiment will be described with reference to FIG.

First, the film is cut into a predetermined shape using the above-mentioned trimming apparatus. Specifically, a film material supplied in the form of a winding roll is input to the trimming apparatus 200 (step S01), and the position of the fed film is confirmed through the sensor 224 (step S02). Then, the cutter 220 ) (Step S03). Here, the shape in which the film is cut is determined in consideration of a deformed state due to a process of adsorbing a flat plate, which will be described later. That is, if the shape of the plate is transformed from a straight line to a curved line due to the adsorption process, the cut film must be cut into a curve like the shape of a deformed plate. This also applies to the case where the film is applied over the entire surface of the flat plate and the case where the film is applied only to a part of the flat plate.

However, if the degree of deformation is not large, the film may be cut without considering deformation.

Thereafter, the cut film 121 is supplied to the mounting surface 121 of the second holder 120 of the first embodiment to be adsorbed (step S04), and the position of the adsorbed film is confirmed by using a camera or the like (step S05) , The film is aligned with respect to the press roll 150 (step S06). In the aligning step, the film may be moved and aligned with the second holding table itself, or the position of the pressing roll may be adjusted and aligned as described above.

When the alignment of the film is completed, the film is adsorbed on the surface of the press roll as described in FIG. 4 (S07), and the adhesive protective film attached to the surface of the film is removed (S08). The protective film may be removed by hand, or a separate facility or tool for removing the protective film may be used.

Separately from the trimming, the flat plate is cleaned using the cleaning apparatus shown in FIG. That is, water is sprayed onto the surface of the flat plate, and then the foreign substance is removed using the brush (step S11) and dried (step S12). The flat plate thus cleaned and dried is placed on the stationary surface 111 of the first cradle 110 (step S13). Then, a negative pressure is applied to the flat plate using the vacuum pump so that the flat plate is deformed and adsorbed on the flat surface (step S14). If the initial shape of the plate is planar, it may not be deformed.

After the position of the adsorbed flat plate is confirmed by using the camera or the like (step S15), the position is aligned with the press roll (step S16). When the step S16 is completed, the position between the film and the flat plate is aligned in a predetermined state, so that the film is attached to the surface of the flat plate as described in FIG. 5 (S20). After the attachment of the film is completed, the negative pressure applied to the suction hole is removed and the plate is restored to its original shape before the plate is deformed (S24).

Claims (18)

A first cradle having an adsorption means for adsorbing a plate material having projections or curved surfaces to a flat surface so as to deform it into a flat plate shape;
A pressing roll for pressing the film on the surface of the plate material adsorbed on the first stand;
A film holder provided on the squeeze roll and fixing the film to be adhered to the surface of the squeeze roll;
Support means for movably supporting the press roll;
Positioning means for confirming the position of the plate and the film fixed to the press roll; And
And alignment means for aligning the film and the plate material based on the position identified by the positioning means,
Wherein the pressing roll is provided with a concave portion recessed inwardly from a circumferential surface thereof,
The concave portion,
A first incision surface extending toward the center of the squeeze roll; And
And a second incision surface extending in a circumferential direction of the press roll in a direction orthogonal to the end of the first incision surface,
Wherein the first incision surface and the second incision surface extend along a longitudinal direction of the press roll. The method according to claim 1,
The suction means includes a plurality of suction holes formed on an upper surface of the first holder; And
And a vacuum pump for forming a negative pressure in the suction hole. The method according to claim 1,
Wherein the support means is configured to move the press roll along the film application direction of the plate material. The method of claim 3,
Wherein the support means comprises: a rail extending in the longitudinal direction of the first cradle;
A slider installed to move along the rail and to which the press roll is rotatably mounted;
A driving motor for rotating the pressing roll; And
And raising and lowering means for raising and lowering the rail in a vertical direction. The method according to claim 1,
Wherein the supporting means movably supports the press roll in an up-and-down direction, and the first holder is movably provided along the application direction of the film. The method according to claim 1,
Characterized in that the film is pre-trimmed to a predetermined shape and then fed to the surface of the press roll. The method according to claim 1,
Characterized in that the film further comprises a cutter which is supplied in a wound state on the film supply roll and which is applied to the surface of the plate by the press roll and then cuts the film. The method according to claim 1,
Wherein the film holder comprises: a plurality of suction holes provided in the pressing roll; And
And a vacuum pump for forming a negative pressure inside the suction hole. 9. The method of claim 8,
Further comprising a metal net laminated to the surface of the press roll. 10. The method of claim 9,
Wherein the metal mesh is made of stainless steel. delete delete A first holding table having first suction means for causing the plate material having projections or curved surfaces to be adsorbed on a flat plate surface so as to deform the flat plate;
A second holder having second suction means for causing a film cut in a predetermined shape to be adsorbed on the surface;
A pressing roll for attaching the adsorption film to the surface of the second stand, and then pressing the film on the surface of the plate adhered to the first stand;
Support means movably supporting the press roll between the first and second cradles;
Positioning means for confirming the position of the plate and the film fixed to the press roll; And
And alignment means for aligning the film and the sheet material based on the position identified by the positioning means,
Wherein the pressing roll is provided with a concave portion recessed inwardly from a circumferential surface thereof,
The concave portion,
A first incision surface extending toward the center of the squeeze roll; And
And a second incision surface extending in a circumferential direction of the press roll in a direction orthogonal to the end of the first incision surface,
Wherein the first incision surface and the second incision surface extend along a longitudinal direction of the press roll. 14. The method of claim 13,
The support means comprising: a rail extending between the first and second cradles;
A slider installed to move along the rail and to which the press roll is rotatably mounted;
A driving motor for rotating the pressing roll; And
And raising and lowering means for raising and lowering the rail in a vertical direction. 14. The method of claim 13,
Characterized in that the film is pre-trimmed to a predetermined shape and then fed to the second holder. 14. The method of claim 13,
Further comprising a metal net laminated to the surface of the press roll. 17. The method of claim 16,
Wherein the metal mesh is made of stainless steel. 14. The method of claim 13,
Further comprising a film holder provided on the squeeze roll and fixing the film to be adhered to the surface of the squeeze roll,
Wherein the film holder comprises: a plurality of suction holes provided in the pressing roll; And
And a vacuum pump for forming a negative pressure inside the suction hole,
Wherein the press roll is provided with a recess recessed inwardly from a circumferential surface.

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