JP2005221926A - Sheet stripper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet stripper capable of stripping a sheet tightly stuck to a substrate from the substrate with high accuracy without damaging patterns with a simple configuration. <P>SOLUTION: The sheet stripper includes a sheet end clamping means (30) for clamping the end of the sheet (12); moving means (36, 38, 40) for relatively parallel moving the sheet in a stripping direction; a stripping angle holding means (50) for holding the angle to strip the sheet from the substrate constant; and means (52, 54, 56) for moving the stripping angle holding means in parallel with the substrate in synchronization with the moving means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sheet peeling apparatus, and in particular, when patterning with a laser of a printed wiring board, a sheet closely attached to a substrate, which is suitable for use in peeling a PET film from a glass substrate after laser processing, The present invention relates to a sheet peeling apparatus for peeling from a sheet.

  A printed wiring board used in an electronic device such as a computer has a predetermined pattern of wiring such as copper formed on one side (or both sides) of an insulating substrate such as glass.

  In this type of printed wiring board, conventionally, a wiring pattern has been formed by etching. Recently, so-called laser patterning, in which a pattern is drawn with a laser beam, is also being put into practical use.

  In any case, in the manufacturing process of such a printed wiring board, a process of peeling off a light-transmitting resin (for example, PET) film attached to the board before processing after etching or laser patterning is required. Has been. Therefore, for example, Patent Document 1 describes that a pair of conveyors for peeling off the film is arranged above the substrate, and the film is nipped and peeled off by the conveyor.

JP-A-63-37352

  However, disposing the belt conveyor on the substrate as in Patent Document 1 has a problem that the apparatus becomes large and the cost is high.

  On the other hand, if the sheet is peeled off from the substrate at once, the pattern may be bent or chipped.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to peel off a sheet in close contact with a substrate with high accuracy with a simple configuration without damaging the pattern.

  The present invention relates to a sheet peeling apparatus for peeling a sheet in close contact with a substrate from the substrate, a sheet end clamping means for clamping the edge of the sheet, and the sheet edge clamping means and the substrate are peeled off. A moving means that translates relative to the direction, a peeling angle holding means for keeping the angle at which the sheet is peeled from the substrate constant, and a peeling angle holding means that translates relative to the substrate in synchronization with the moving means. The above-described problems are solved by providing the means.

  Further, the peeling angle holding means is a rotatable roller disposed parallel to the substrate to prevent the sheet from being damaged.

  Alternatively, the peel angle holding means is a non-rotating bar arranged in parallel with the substrate, and the configuration is simplified.

  In addition, the peeling angle can be adjusted so that appropriate sheet peeling according to the type and state of the sheet can be performed.

  According to the present invention, with a simple configuration, it is possible to keep a peeling angle constant and to peel a sheet adhered to the substrate from the substrate with high accuracy without damaging the pattern.

  In particular, when the peeling angle holding means is a roller or bar arranged in parallel with the substrate, the relative positional relationship between the sheet end clamping means and the roller or bar and the moving speed of the clamping means should be adjusted. Thus, the peeling angle and the peeling speed can be easily adjusted.

  Hereinafter, an embodiment of the present invention applied to an apparatus for automatically peeling off a PET film sheet that is in close contact with a glass substrate (thin plate) will be described in detail as a process after laser processing with reference to the drawings.

  This embodiment is configured as shown in FIG. 1 (front view), FIG. 2 (side view), and FIG. 3 (plan view).

  In the figure, 12 is a PET film (hereinafter simply referred to as a film) having a film thickness of 0.15 to 0.05 mm and a size of 1850 × 1550 mm to 100 × 100 mm, for example, and as shown in FIG. The glass substrate 10 is in close contact with the substrate 10 protruding from the substrate 10 by about 20 to 70 mm.

  Reference numeral 20 denotes, for example, a glass substrate suction table equipped with a suction blower. As shown in FIG. 5, for example, a triple rectangular substrate suction area 22A, 22B, 22C and a corner suction area 22D are provided outside the inner substrate suction area 22A. By sequentially adsorbing toward the substrate adsorption area 22C and the corner adsorption area 22D, the glass substrate 10 disposed thereon is adsorbed and fixed.

  24A to 24F are film adsorption areas provided with, for example, a suction blower provided outside the substrate adsorption area 22B. For example, by sequentially adsorbing from the right area 24A to the left area 24F in the figure, While extending the wrinkles of the film 12, the entire circumference of the film is adsorbed. When the film is peeled off, the suction is released in the reverse order, and finally the end of the film is sucked only by the area 24A. In the present embodiment, since the film suction area 24A at the right end in the figure also serves as a lower suction plate for holding the film right end on the substrate, the configuration is simple. Note that a lower suction plate independent of the film area suction area 24A may be provided. The holding method is not limited to adsorption by a suction blower.

  Reference numeral 30 denotes a film end clamping mechanism that clamps the entire width of the end of the film 12, and includes an upper suction plate 32 for sucking the end of the film 12 by, for example, a suction blower. The clamp mechanism 30 is moved up and down by an up-and-down mechanism 34, and can be moved in the left-right direction in FIG. 1 by a clamp movement drive motor 36 and a timing belt 38 on a straight (LM) guide 40. .

  Reference numeral 50 denotes a film peeling angle holding roller according to the present invention, which is synchronized with the roller moving drive motor 52 and the ball screw 54 in the same direction at a half speed of the film end clamping mechanism 30 on the linear advance (LM) guide 56. Have been to move.

  60 is a robot arm for supplying and discharging the glass substrate 10 to and from the PET film peeling apparatus, 62 is a PET film collection space for storing the peeled film, and 64 is a static electricity removing apparatus.

  Hereinafter, the operation of the stripping device will be described with reference to FIG.

  First, in step 100, the glass substrate 10 to which the PET film 12 is closely attached is mounted on the glass substrate suction table 20 by the robot arm 60. At this time, in order to prevent damage to the pattern, it is desirable to match the direction of the main pattern 11 with the direction of peeling the film, as shown in FIG.

  Next, in step 110, the substrate suction areas 22A to 22C, the corner suction areas 22D, and the film suction areas 24A to 24F cause the glass substrate 10 and the end of the film 12 protruding from the glass substrate 10 (about 20 to 700 mm). 5), as shown in FIG. 5, the suction is sequentially released so that only the right end of the film 12 is sucked only by the lower suction plate 24A.

  Next, at step 120, as indicated by symbol A in FIG. 1, the film end clamping mechanism 30 is moved to the upper position of the lower suction plate 24A and lowered by the vertical mechanism.

  When lowered, the upper suction plate 32 and the lower suction plate 24A coincide with each other and the right end portion of the film 12 is transferred from the lower suction plate 24A to the upper suction plate 32 in step 130, as indicated by symbol B in FIG.

  Next, at step 140, as shown in FIG. 9, the film end clamping mechanism 30 is raised by the vertical mechanism 34 to mechanically clamp the end of the film 12 with the upper suction plate 32. If the suction by the upper suction plate 32 is strong and can withstand film peeling, the independent clamping mechanism 30 can be omitted and the upper suction plate 32 can be used for clamping.

  Next, the routine proceeds to step 150 where the film end clamping mechanism 30 guided by the linear guide 40 is run in the left direction of the figure as indicated by reference numeral C by the timing belt 40 driven by the clamp movement drive motor 36. Then, stripping of the film 12 is started. At this time, the film peeling angle holding roller 50 is moved with a half speed of the clamping mechanism 30 by the ball screw 54 driven by the roller moving motor 52 as shown in FIG. Directionality is kept constant.

  Next, the process proceeds to step 160, and when the peeled portion reaches the moving end as shown by reference numeral D, the suction / clamping of the film 12 is released, the film 12 is dropped into the collection space 62, and the film peeling of the substrate is finished. To do.

  In the present embodiment, the peeling angle can be easily adjusted by changing the relative position of the roller 50 and the glass substrate 10 and the moving speed of the clamp mechanism 30.

  Further, in this embodiment, since the film peeling angle holding means is the roller 50, the film 12 and the roller surface are not rubbed and the film surface is not damaged. It is also possible to use a non-rotating bar instead of the roller 50.

  In the above embodiment, the clamp mechanism 30 moves on the rectilinear guide 40 using the timing belt 38, and the film peeling angle holding roller 50 moves on the rectilinear guide 56 using the ball screw 54. The configuration for moving these is not limited to this.

  The present invention is suitable for use when automatically peeling off a PET film that is in close contact with a glass substrate, particularly as a treatment after laser processing. In addition, the application object of this invention is not limited to this, It is applicable when peeling off the sheet | seat in general contact | adhered to the board | substrate from a board | substrate.

Front view of an embodiment of the present invention Same side view Same top view The top view which similarly shows the glass substrate where the film was stuck The top view which similarly shows a substrate adsorption table Flow chart showing the stripping procedure in this embodiment A plan view showing the pattern and the desired direction of stripping Front view showing the same state Front view showing the clamped state

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Glass substrate 12 ... PET film 20 ... Glass substrate adsorption table 22A-22C ... Substrate adsorption area 22D ... Corner adsorption area 24A-24F ... Film adsorption area 24F ... Lower adsorption plate 30 ... Film edge clamp mechanism 32 ... Upper adsorption Plate 34 ... Clamp up / down mechanism 36 ... Drive motor for clamp movement 38 ... Timing belt 40, 56 ... Straight (LM) guide 50 ... Film peeling angle holding roller 52 ... Drive motor for roller movement 54 ... Ball screw

Claims (4)

In the sheet peeling device for peeling off the sheet adhered to the substrate from the substrate,
Sheet end clamping means for clamping the end of the sheet;
A moving means for relatively moving the sheet end clamping means and the substrate in the direction of peeling the sheet;
A peeling angle holding means for holding the angle at which the sheet is peeled from the substrate constant;
Means for moving the peeling angle holding means in parallel with the substrate in synchronization with the moving means;
A sheet peeling apparatus comprising:   The sheet peeling apparatus according to claim 1, wherein the peeling angle holding unit is a rotatable roller disposed in parallel with the substrate.   The sheet peeling apparatus according to claim 1, wherein the peeling angle holding means is a non-rotating bar disposed in parallel with the substrate.   The sheet peeling apparatus according to any one of claims 1 to 3, wherein the peeling angle is adjustable.

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