JP6324606B1 - Release film peeling method and release film peeling apparatus - Google Patents

Abstract

Disclosed is a release film peeling method and a release film peeling apparatus that can release and remove a release film without causing warping or scratching from a laminated film of a single plate. To do. SOLUTION: The release film 4 side of the laminated film 1 is adsorbed to the laminated film adsorption table 14, and the end of the cover lay film 2 is held by the preliminary peeling roll 13 while moving the laminated film 1 in the X (−) direction. 4, the preliminary peeling margin L is formed, and then the cover lay film 2 side of the laminated film 1 is sucked to the suction head 16, and the laminated film suction table 14 and the peeling roll 30 are moved in the X (+) direction. A release film peeling method and a release film peeling apparatus 10 in which the peeling roll 30 is rolled to peel the release film 4 while winding the release film 4 from the laminated film 1, and is transferred and removed by the transfer belt 33. [Selection] Figure 6

Description

  The present invention relates to a release film peeling method and a release film peeling apparatus.

  Conventionally, a circuit board is used by attaching a cover pattern film for protecting a conductor pattern having a thermosetting adhesive layer on a conductor pattern forming surface of a base board on which a conductor pattern such as copper foil is formed. It has been known. In the coverlay film, a release film as a protective film is laminated on the surface of the thermosetting adhesive layer (this is called a laminated film), and the release film is peeled off from the laminated film. It is heat-pressed to. In peeling the release film laminated on the adhesive layer, it is required to peel the coverlay film without warping or scratching it.

  As a method of peeling the release film from the laminated film of a single plate, air is blown to the corner of the laminated film, the release film on the upper layer side of the corner is turned up, and the released release film is held by the holding means. There is one that moves the holding means along the diagonal line of the corner while blowing air to peel the release film (for example, see Patent Document 1).

  Moreover, in the peeling method which peels off a protective film from the laminated board material on which the board | substrate material (circuit board) and the protective material (release film) were laminated | stacked, a protective material is cut | disconnected by a half cut and a board | substrate material is hold | maintained with the fragment by a half cut There is a method of peeling off the protective material that is grasped and peeled off (see, for example, Patent Document 2).

JP 2008-37572 A JP2015-83504A

  However, the peeling method described in Patent Document 1 is a method in which the release film is turned up and peeled off from the laminated film while air is blown onto the laminated film, and the release time of the release film varies at the start of peeling. In addition, the entire release film may be lifted in the middle of peeling and may stick to other places due to static electricity or the like, which may hinder the peeling or removing process.

  Moreover, since the peeling method of patent document 2 carries out the half cut of the protective material, there exists a subject that the board | substrate material is damaged or a protective material cannot be cut | disconnected. Further, it is conceivable that cutting residue is generated and attached to the substrate material during half-cutting, and there is also a problem that the fragments after half-cutting must be peeled off from the substrate material.

  Therefore, the present invention has been made to solve such a problem, without causing warp or damage to the coverlay film from a single laminated film, peeling the release film, It is an object of the present invention to provide a release film peeling method and a release film peeling apparatus that can be removed.

  [1] In the release film peeling method of the present invention, the release film is formed from a single laminated film composed of a coverlay film having a thermosetting adhesive layer and a release film laminated on the adhesive layer. A release film peeling method for peeling and removing, the step of vacuum adsorbing the release film side of the laminated film to a laminated film adsorption table, and the laminated film with a preliminary peeling roll while moving the laminated film in one direction Rolling the preliminary peeling roll while pressing from the cover lay film side, and lifting the end of the cover lay film from the release film to form a preliminary peeling margin, and laminating on the laminated film adsorption table Releases the adsorption of the film and adsorbs the entire surface of the coverlay film of the laminated film In a state where the vacuum suction is performed on the lid and the suction head sucks the laminated film, the release film having adhesiveness is brought into contact with the release film, and the laminated film suction table and the peeling roll are moved in the other direction. And rolling the release roll to release and release the release film from the laminated film, and removing the release film.

  According to the release film peeling method of the present invention, the preliminary peeling roll is formed by rolling while pressing the preliminary peeling roll from the coverlay film side of the laminated film, and the entire surface of the coverlay film is sucked by the suction head Then, the release film peeling roll part is rolled to peel the release film from the laminated film. By doing in this way, it becomes possible to peel and remove the release film in a single laminated film without causing the coverlay film to be warped or scratched.

  [2] In the release film peeling method of the present invention, in the step of forming the preliminary peeling margin portion, the preliminary peeling roll is rolled while pressing the coverlay film to release the end portion of the coverlay film. It is preferable to lift the film from the film and allow the air to touch the adhesive layer.

  The thermosetting adhesive layer makes it possible to form a preliminary peeling margin by utilizing the fact that the release film does not stick again if the surface is exposed to air unless heated. If peeling is started from, the release film can be easily peeled from the laminated film.

  [3] In the release film peeling method of the present invention, in the step of the vacuum suction of the laminated film by the suction head, it is preferable that the entire surface of the laminated film including the preliminary peeling margin is sucked by the suction head.

  Since the adsorption head adsorbs the entire surface of the coverlay film including the preliminary peeling margin, it is possible to prevent the coverlay film from warping when the release film is peeled off. Furthermore, since a peeling roll does not contact a coverlay film directly, it can prevent that a coverlay film is damaged.

  [4] In the release film peeling method of the present invention, in the step of peeling and removing the release film, the release film peeled while peeling the release film with the peeling roll is transferred by a transfer belt and separated. It is preferable to separate and remove the release film from the peeling roll and the transfer belt by a plate.

  When the release film is peeled only by the peeling roll, the release film is caught in the peeling roll and it is difficult to remove the release film from the peeling roll. Therefore, if the peeled release film is transferred by the transfer belt and separated from the peeling roll and the transfer belt by the separation plate, the release film is peeled from the coverlay film and removed without the release film being wound around the peeling roll. It becomes possible to do.

  [5] The release film peeling apparatus of the present invention is configured to remove the release film from a single laminated film composed of a coverlay film having a thermosetting adhesive layer and a release film laminated on the adhesive layer. A release film peeling apparatus for peeling and removing, a laminate film suction table capable of reciprocating in one direction while vacuum-sucking the release film side of the laminate film, and holding the laminate film from the coverlay film side A pre-peeling roll that forms a pre-peeling margin at the end of the laminated film in the traveling direction while rolling by moving in one direction of the laminated film adsorption table, and the coverlay film side of the laminated film The suction head for vacuum suction and the laminated film suction table can be moved together. With the suction head adsorbing the laminated film, the peeling roll comes into contact with the release film in the preliminary peeling margin, and the peeling roll rolls due to movement in the other direction of the laminated film adsorption table. A release film peeling roll portion for peeling the release film from the film.

  According to the release film peeling apparatus of the present invention, the preliminary peeling roll is lifted from the release film by rolling the preliminary peeling roll while pressing it from the cover film side of the laminated film, and the preliminary peeling margin is formed. After forming and adsorbing the entire surface of the coverlay film by the adsorption head, the release roll rolls to release the release film from the laminated film. By doing in this way, in a single laminated film, it becomes possible to peel a release film from a laminated film, without generating a curvature or scratching a coverlay film.

  [6] In the release film peeling apparatus of the present invention, the preliminary peeling roll is longer than the width dimension orthogonal to the moving direction of the laminated film and has adhesiveness on the surface. It is preferable that it is a structure which rolls by the movement of the laminated film suction table while pressing.

  The pre-peeling roll configured in this way rolls by moving relative to the laminated film adsorption table while pressing the laminated film without bias using adhesiveness, and is vacuum-adsorbed to the laminated film adsorption table. It is possible to lift the coverlay film from the released film to form the preliminary peeling margin.

  [7] In the release film peeling apparatus of the present invention, the release film peeling roll portion is longer than the width dimension of the laminated film and has adhesiveness on the surface, and on the lower side of the peeling roll. A driven roll disposed at a position away from the peeling roll from the laminated film adsorption table, and a transfer belt for connecting the peeling roll and the driven roll to transfer the peeled release film. A plurality of grooves are formed in the peeling roll and the driven roll, and the transfer belt is mounted in each of the plurality of grooves, and the transfer belt is mounted so as to fit inside the outer peripheral surface of the peeling roll. It is preferable.

  The release film peeling roll portion configured in this manner is peeled off so as to be wound almost evenly over the entire width of the release film by the adhesive peeling roll, and the released release film is lowered by the transfer belt. It is transferred to. Accordingly, the peeled release film can be separated from the peeling roll and transferred by the transfer belt without being wound around the peeling roll.

  [8] In the release film peeling apparatus according to the present invention, the release film peeling roll portion intersects the transfer belt between the release roll and the driven roll, and the driven roll side of the transfer belt extends from the intersecting portion. It is preferable to have a separating plate arranged so as to project outward.

  The release film that is being peeled off by the peeling roll is transferred downward (in the direction away from the peeling roll) by the transfer belt, separated from the transfer belt by the separation plate, and can be removed.

  [9] In the release film peeling apparatus of the present invention, the suction head moves to the position of the circuit board to which the cover lay film is adhered in a state where the cover lay film from which the release film has been peeled is sucked. And it is preferable to have the function to heat-press the said cover-lay film in the predetermined position of the said circuit board.

  By adopting such a configuration, it is possible to realize a release film peeling device that has both a peeling function for peeling and removing a release film from a laminated film and a sticking function for thermocompression bonding of a coverlay film to a circuit board. It becomes.

1 is a cross-sectional view illustrating a configuration of a laminated film 1. It is a perspective view which shows the structure of the release film peeling apparatus 10 which concerns on embodiment. It is a figure which shows the structure of the laminated film adsorption | suction table unit. It is the figure which looked at the laminated film adsorption | suction table unit 11 and the release film peeling roll part 15 from the Y (+) direction. It is a process flowchart which shows the release film peeling method which concerns on embodiment. It is process explanatory drawing which simplifies and represents the main process of the release film peeling method which concerns on embodiment. It is a figure which expands and shows the peeling and removal process of the release film.

  Hereinafter, the release film peeling method and the release film peeling apparatus 1 which concern on embodiment of this invention are demonstrated, referring FIGS. 1-7.

[Configuration of Laminated Film 1]
FIG. 1 is a cross-sectional view showing the configuration of the laminated film 1. The laminated film 1 is a single plate having a quadrangular planar shape (sometimes referred to as a sheet or strip), a coverlay film 2 having a thermosetting adhesive layer 3, and a release film 4 on the adhesive layer 3. Is a laminated structure. The coverlay film 2 is a film for surface protection such as a flexible wiring board on which a conductive pattern is formed, and is a film such as a polyimide resin or a PET (polyethylene terephthalate) resin. The release film 4 is made of PET resin and the like, and is a film for protecting the surface of the adhesive layer 3. The adhesive layer 3 and the release film 4 are in a laminated state in which the air between the layers is excluded and brought into close contact, and since the adhesive layer 3 is thermosetting, it is separated when the adhesive layer 3 is exposed to air at room temperature. Thus, the release film 4 can be peeled from the adhesive layer 3, that is, the coverlay film 2.

[Configuration of Release Film Peeling Device 10]
FIG. 2 is a perspective view showing the configuration of the release film peeling apparatus 10 according to the embodiment. In the drawings described below, the horizontal direction shown in FIG. 2 is represented by X, the right direction is represented by X (+), the left direction is represented by X (−), the depth direction shown is represented by Y, and the back side is represented by Y. (-), The front side is Y (+), the direction orthogonal to the XY plane is represented by Z, the upper side is Z (+) or upper, and the lower side is Z (-) or lower. The release film peeling apparatus 10 vacuum-sucks the laminated film 1 on the side of the release film 4 (see FIG. 1) and the laminated film suction table unit 11 that vacuum-sucks the laminated film 1 on the coverlay film 2 (see FIG. 1) side. It has a suction head unit 12 and a preliminary peeling roll 13 that presses the laminated film 1 against the laminated film suction table 14 from the cover lay film side. The laminated film adsorption table unit 11, the adsorption head unit 12, and the laminated film 1 shown in FIG. 2 are diagrams showing an arrangement in one state during operation. The material of the preliminary peeling roll 13 has adhesiveness, such as polyolefin rubber, for example, and an adhesive layer may be formed on the outer peripheral surface.

  The laminated film suction table unit 11 includes a laminated film suction table 14 and a release film peeling roll portion 15 attached to the end of the laminated film suction table 14 in the X (−) direction. The laminated film suction table unit 11 can reciprocate in the X direction. When the laminated film suction table unit 11 passes below the preliminary peeling roll 13 in the X (−) direction, the release film 4 is preliminarily peeled, and below the suction head unit 12. When moving in the X (+) direction, the release film peeling roll 15 operates to peel and remove the release film 4 from the coverlay film 2. The detailed configuration of the laminated film adsorption table unit 11 will be described later with reference to FIGS. 3 and 4, and the release film 4 peeling method will be described later with reference to FIGS. 5, 6, and 7.

  The suction head unit 12 is disposed above (Z (+) side) the laminated film suction table unit 11, and the suction head 16 facing the laminated film suction table 14 and the suction head 16 are reciprocated in the Z direction. And a Y-axis drive unit 18 that reciprocates the suction head 16 in the Y direction. The Z-axis drive unit 17 and the Y-axis drive unit 18 are driven with high accuracy by a servo motor and a ball screw mechanism (not shown). The suction head unit 12 has a θ-axis drive 19 that rotates the suction head 16 in the horizontal direction, and the θ-axis drive unit 19 corrects the posture (angle with respect to the X axis or Y axis) of the sucked coverlay film 2. The suction head 16 is provided with a number of suction holes (not shown) for vacuum-sucking the laminated film 1.

  In the X (+) direction of the release film peeling apparatus 10, a substrate suction table 20 that vacuum-sucks a circuit board (not shown) (for example, a flexible wiring board) to which the coverlay film 2 is attached, and a substrate suction table 20. A supply unit 21 for supplying the circuit board and supplying the laminated film 1 to the laminated film suction table 14 is disposed. The material supply unit 21 can reciprocate in the Y-axis direction and the Z-axis direction, respectively. The board suction table 20 moves along the guide rails 22 in the X (−) direction to the lower side of the suction head 16 and heat-presses the coverlay film 2 on the conductor pattern forming surface of the circuit board. The circuit board to which the cover lay film 2 is adhered moves in the X (+) direction along the guide rail 22, is crimped by the crimping roll 23, returns to the board supply position, and is removed.

[Configuration of Laminated Film Suction Table Unit 11]
FIG. 3 is a diagram showing the configuration of the laminated film suction table unit 11, FIG. 3A is a perspective view showing the overall configuration of the laminated film suction table unit 11, and FIG. 3B is FIG. 3A. It is a figure which expands and shows a part of adsorption | suction hole formation area | region 24 enclosed with the dotted line B shown in FIG. The laminated film adsorption table unit 11 includes a laminated film adsorption table 14 having an adsorption hole forming region 24 in which a large number of adsorption holes 25 are arranged, a table base portion 26 on which the laminated film adsorption table 14 is placed and held, and a laminated film. It has the release film peeling roll part 15 provided in the X (-) direction edge part of the adsorption | suction table 14. As shown in FIG.

  The release film peeling roll unit 15 is longer than the width of the laminated film 1 (dimension in the Y direction), and has a peeling roll 30 having adhesiveness on the surface, and a driven roll disposed at a position away from the peeling roll 30 downward. 31. The driven roll 31 has the same length as the peeling roll 30. Both ends of the peeling roll 30 and the driven roll 31 are rotatably supported by the support plate 32. The support plates 32 are fixed to both ends of the table base portion 26 in the Y direction. The material of the peeling roll 30 is, for example, polyolefin rubber, and an adhesive layer may be formed on the outer peripheral surface. The peeling roll 30 and the driven roll 31 are connected by a transfer belt 33 having a circular cross section. The transfer belt 33 is mounted in grooves 34 and 35 formed in the peeling roll 30 and the driven roll 31, respectively. A separation plate 36 is disposed between the peeling roll 30 and the driven roll 31. The connection relationship between the peeling roll 30, the driven roll 31, and the transfer belt 33 will be described in detail with reference to FIG.

  4 is a view of the laminated film adsorption table unit 11 and the release film peeling roll unit 15 as seen from the Y (+) direction, and FIG. 4A is a cut taken along the cutting line AA shown in FIG. 4B is an enlarged view of the release film peeling roll portion 15 (the portion surrounded by the dotted line C in FIG. 4A). The laminated film suction table 14 is provided with a number of suction holes 25 as shown in FIG. 3B, and the suction holes 25 communicate with the negative pressure chamber 27. The negative pressure chamber 27 is connected to a vacuum pump (not shown) via a nipple 28. By driving the vacuum pump, air is sucked from the suction holes 25 and the laminated film 1 is vacuum-sucked on the release film 4 side. . As shown in FIG. 4A, the outer peripheral upper surface of the peeling roll 30 is arranged to be higher (Z (+) direction) than the laminated film suction table 14, and the driven roll 31 is more than the peeling roll 30. Are also arranged at positions below and in the X (−) direction. A straight line connecting the axis centers of the peeling roll 30 and the driven roll 31 (indicated by a two-dot chain line in the figure) is inclined with respect to the surface of the laminated film suction table 14 by an angle θ.

  As shown in FIG. 4B, grooves 34 and 35 are formed in each of the peeling roll 30 and the driven roll 31. A transfer belt 33 is attached to the grooves 34 and 35. A plurality of grooves 34 and 35 are formed in the Y direction (see FIG. 3A). In the example shown in FIG. 3A, ten transfer belts 33 are provided. However, the release films 4 that have been peeled off may be arranged evenly so as not to hang down between the transfer belts 33. It is not limited to books. The groove 34 formed in the peeling roll 30 has such a depth that the transfer belt 33 does not protrude from the outer peripheral surface of the peeling roll 30. In the groove 35 formed in the driven roll 31, the transfer belt 33 has a depth that slightly protrudes from the outer peripheral surface of the driven roll 31, but may have a depth that does not protrude. The peeling roll 30 rolls by friction with the laminated film 30 as the laminated film suction table 14 moves in the X (+) direction with respect to the suction head 16 on which the laminated film 1 is vacuum-sucked. The transfer belt 33 rotates with the driven roll 31 by the rolling (rotation) of the peeling roll 30, and transfers the peeled release film 4 downward.

  Although the detailed peeling method of the release film 4 will be described later, the release film 4 peeled off by the peeling roll 30 is transferred downward by the transfer belt 33. The release film peeling roll portion 15 is provided with a separation plate 36 for separating and removing the peeled release film 4. As shown in FIGS. 3 and 4, the separation plate 36 includes a plate-like separation portion 37 that extends in the Y direction, and fixed portions 38 that are provided at both ends of the separation portion 37.

  The separation plate 36 is fixed to the support plate 32 by a fixing portion 38 (see also FIG. 3A). As shown in FIG. 4B, the separating portion 37 has an upper end in a direction away from the laminated film suction table 14 intersecting the outer transfer belt 33 (described as a transfer belt 33A), and a lower portion. The side is inclined to project outward from the transfer belt 33A (in a direction away from the laminated film suction table 14). The peeling roll 30 rolls in the direction indicated by the solid line arrow in FIG. 4B and feeds the transfer belt 33 in the same direction. At this time, as shown in FIGS. 3A and 4B, the transfer belt 33 enters from the upper side of the groove 39 provided in the separating portion 37 and comes out to the back side of the lower separating portion 37. The follower roll 31 is reached. By doing so, the release film 4 peeled off by the peeling roll 30 is transferred downward by the transfer belt 33, and is separated and removed from the peeling roll 30 and the transfer belt 33 by the separation plate 36. Next, the release film peeling method will be described in detail with reference to FIGS. 5, 6, and 7.

[Release film peeling method]
FIG. 5 is a process flow diagram showing the release film peeling method according to the embodiment, FIG. 6 is a process explanatory diagram showing the main steps of the release film peeling method in a simplified manner, and FIG. It is an enlarged view which shows a removal process. The process will be described with reference to FIGS. 6 and 7 according to the process flow diagram of FIG. First, as shown to Fig.6 (a), the laminated | multilayer film 1 is supplied on the laminated | multilayer film adsorption | suction table 14, and the release film 4 side is vacuum-sucked (step S1). Feeding of the laminated film 1 to the laminated film suction table 14 is performed by a feeding unit 21 (see FIG. 2). At this stage, the preliminary peeling roll 13 and the suction head 16 stand by at a predetermined position above the laminated film 1 and the preliminary peeling roll portion 15.

  After vacuum-adsorbing the laminated film 1 to the laminated film adsorption table 14, as shown in FIG. 6B, the laminated film adsorption table 14 is moved in the X (−) direction (step S2), and the X ( -) Before the side end portion reaches the lower side of the preliminary peeling roll 13, the preliminary peeling roll 13 is lowered to a position where it can contact the laminated film 1 (step S3). Furthermore, as shown in FIG. 6C, when the laminated film adsorption table 14 is moved in the X (−) direction, the laminated film 1 is pressed when passing through the preliminary peeling roll 13, and includes the adhesive layer 3. Only the tip of the coverlay film 2 is lifted from the coverlay film 2. Lifting the tip of the coverlay film 2 is defined as preliminary peeling.

  The state of preliminary peeling is enlarged and shown in FIG. The cover lay film 2 and the adhesive layer 3 have an adhesive force that cannot be easily peeled off, and the release film 4 and the adhesive layer are in close contact but not fixed. When pressed by the peeling roll 13, the release film 4 is vacuum-sucked by the laminated film suction table 14, so that the cover lay film 2 side is momentarily lifted from the release film 4 and the adhesive layer 3 comes into contact with air. Since the adhesive layer 13 is thermosetting, once it comes into contact with air, it can be easily peeled without sticking even if the release film 4 is pressed again. The lifting range at this time is defined as a preliminary peeling margin L, and the step of lifting the release film 4 by the preliminary peeling roll 13 is defined as a preliminary peeling margin forming step (step S4). The pressing force of the preliminary peeling roll 13 may be such that the pressing force of the preliminary peeling roll 13 comes into contact with the laminated film 1 almost uniformly during the movement of the laminated film 1, and there is no need to positively warp the coverlay film 2. The release film 4 is not lifted on the X (+) side from the preliminary peeling margin L. The preliminary peeling roll 13 is configured to roll by the frictional force with the coverlay film 2 when the laminated film 1 moves in the X (−) direction while being in contact with the laminated film 1.

  After the laminated film 1 passes below the preliminary peeling roll 13, as shown in FIG. 6 (e), the preliminary peeling roller 13 is raised to a standby position (a position away from the laminated film 1) (step S5). The film suction table 14 is stopped (step S6), the suction head 16 is lowered until it contacts the laminated film 1 (step S7), and the cover lay film 2 side of the laminated film 1 is vacuum-sucked (step S8). After the laminated film 1 is vacuum-adsorbed, the adsorption of the laminated film 1 by the laminated film adsorption table 14 is released (step S9). Next, as shown in FIG. 6 (f), the suction head 16 that has sucked the laminated film 1 is raised to a height position at which it can contact the upper surface of the peeling roll 30 (a position where the release film 4 can be peeled) (step). S10).

  Subsequently, as shown in FIG. 6 (g), the laminated film adsorption table 14 is moved in the X (+) direction (step S11), and the laminated film adsorption table 14 ( The peeling roll 30 starts rolling by the movement of the cover lay film 2), and peeling of the release film 4 is started using the adhesiveness of the peeling roll 30 (step S12). Further, the release film 4 is peeled off from the coverlay film 2 and removed by moving the laminated film suction table 14 (coverlay film 2) in the X (+) direction (step S13). The removal of the release film 4 will be described in detail with reference to FIG.

  As shown in FIG. 7, the peeling roll 30 rolls by the movement of the laminated film suction table 14 in the X (+) direction, and peels off the release film 4 by using the adhesiveness of the surface. . At this time, in the case of the configuration of only the release roll 30, the release roll 30 entrains the release film 4, but the release roll 30 is released downward by the transfer belt 33 without entraining the release film 4. The film 4 is transferred (the moving direction is indicated by a dotted line). Since the separation plate 36 is disposed during the transfer of the release film 4, the release film 4 can be separated from the peeling roll 30 and the transfer belt 33 by the separation unit 37 and removed. Since the peeling roll 30 rolls due to friction with the release film 4, static electricity is hardly generated. After the release / removal process (step S13) of the release film 4 is completed, the laminated film suction table 14 returns to the initial position where the next laminated film 1 is fed.

  The operation of the suction head 16 after the release / removal process (step S13) of the release film 4 is completed will be described with reference to FIG. The suction head unit 12 is in a state where the suction head 16 sucks the cover lay film 2 from which the release film 4 has been peeled, up to the attachment position of a circuit board (not shown) to which the cover lay film 2 is attached. It moves in the (−) direction, and the cover lay film 2 is thermocompression bonded to the circuit board. In a state where the circuit board is vacuum-sucked by the board suction table 20, the circuit board moves along the guide rail 22 below the suction head 16 and stops at the sticking position. Therefore, the release film peeling apparatus 10 is an apparatus having a function of peeling and removing the release film 4 from the laminated film 1 and a function of sticking the coverlay film 2 to the substrate. The circuit board to which the coverlay film 2 is adhered is further crimped by the crimping roll 23 when returning to the material removal position.

  In the release film peeling method described above, a single-layer laminated film 1 to a release film 4 constituted by a coverlay film 2 having a thermosetting adhesive layer 3 and a release film 4 laminated on the adhesive layer 3 are used. Is a release film peeling method in which the release film 4 side of the laminated film 1 is vacuum-sucked to the laminated film adsorption table 14 and the laminated film 1 is moved in one direction (X (−) direction). While moving the finger peeling roll while pressing the laminated film 1 from the coverlay film 2 side with the preliminary peeling roll 13, the end of the coverlay film 2 is lifted from the release film 4 to form the preliminary peeling margin L. Process, and releasing the adsorption of the laminated film 1 to the laminated film adsorption table 14, The process of vacuum-sucking the entire surface of the film 2 to the suction head 16, and in a state where the suction head 16 sucks the laminated film 1, the release film 4 is brought into contact with an adhesive peeling roll 30 to separate the laminated film suction table 14 and the peeling film. A step of rolling the peeling roll 30 by moving the roll 30 in the other direction (X (+) direction), peeling off the release film 4 from the laminated film 1 and removing it.

  According to such a release film peeling method, the preliminary peeling roll 13 is rolled while being pressed from the coverlay film 2 side of the laminated film 1 to form the preliminary peeling margin L, and the suction head 16 is used to cover the coverlay film. After the entire surface of 2 is adsorbed, the release roll 30 is rolled to peel the release film 2 from the laminated film 1. By doing in this way, in the single-layer laminated film 1, it is possible to peel and remove the release film 4 from the laminated film 1 without causing the coverlay film 2 to be warped or scratched. Become.

  In the step of forming the preliminary peeling margin L (step S4), the preliminary peeling roll 13 is rolled while pressing the cover lay film 2 to lift the end of the cover lay film 2 from the release film 4, and the adhesive layer 3 Let the air touch.

  The thermosetting adhesive layer 3 can form the preliminary peeling margin L by utilizing the fact that the release film does not adhere again unless heated when the surface is exposed to air. If peeling is started from the surrogate L, the release film 4 can be easily peeled from the laminated film 1.

  In the step in which the suction head 16 vacuum-sucks the laminated film 1, the entire surface of the laminated film 1 including the preliminary peeling margin L is sucked by the suction head 16. By doing so, it is possible to prevent the coverlay film 2 from warping when the release film 4 is peeled off. Furthermore, since the peeling roll 30 does not contact the cover lay film 2, it is possible to prevent the cover lay film 2 from being damaged.

  In the process of peeling and removing the release film 4, the release film 4 peeled off while being peeled off by the peeling roll 30 is transferred by the transfer belt 33 and released from the peeling roll 30 and the transfer belt 33 by the separation plate 36. The film 4 is separated and removed.

  If the release film 4 is peeled only by the peeling roll 30, the release film 4 is caught in the peeling roll 30 and is difficult to remove. Therefore, if the release film 4 peeled off by the peeling roll 30 is transferred by the transfer belt 33 and separated from the peeling roll 30 and the transfer belt 33 by the separation plate 36, the release film 4 does not wrap around the peeling roll 30, The release film 4 can be peeled off from the coverlay film 2 and removed.

  The release film peeling apparatus 10 presses the laminated film 1 from the cover lay film 4 side, the laminated film adsorption table 14 that can reciprocate in one direction (X direction) while vacuum-adsorbing the release film 4 side of the laminated film 1, A preliminary peeling roll 13 that forms a preliminary peeling margin L at the end of the laminated film 1 in the traveling direction while rolling by moving in one direction (X (−) direction) of the laminated film adsorption table 14, and the laminated film 1 Can be moved together with the suction head 16 that vacuum-sucks the cover lay film 2 side and the laminated film suction table 14, and is peeled off at the preliminary peeling margin L while the suction head 16 sucks the laminated film 1. The roll 30 comes into contact with the release film 4 and is peeled off by moving the laminated film suction table 14 in the other direction (X (+) direction). Lumpur 30 has a release film peeling roll unit 15 for peeling the release film 4 laminated film 1 while rolling, the.

  According to the release film peeling apparatus 10 described above, the preliminary peeling roll 13 is rolled while being pressed from the cover lay film 2 side of the laminated film 1 so that the end of the cover lay film 2 is lifted from the release film 4 to be spared. After the separation margin L is formed and the entire surface of the cover lay film 2 is adsorbed by the adsorption head 16, the separation roll 16 rolls to peel off the release film 4 from the laminated film. By doing in this way, in the laminated film 1 of a single board, the coverlay film 2 does not warp. Moreover, since the release film peeling roll part does not contact the coverlay film 2, it becomes possible to peel the release film 4 from the laminated film 1 without scratching.

  The preliminary peeling roll 13 is longer than the width dimension (Y direction dimension) orthogonal to the moving direction of the laminated film 1 and has adhesiveness on the surface, and holds the laminated film 1 while holding the laminated film 1. It is the structure which rolls by movement. The pre-peeling roll 13 configured as described above rolls by moving relatively while pressing the laminated film 1 without bias using the adhesiveness, and from the release film 4 adsorbed on the laminated film adsorption table 14. It is possible to form the preliminary peeling margin L by lifting the coverlay film 2.

  The release film peeling roll unit 15 is longer than the width dimension of the laminated film 1 and has a sticky surface on the surface, and on the lower side of the peeling roll 30, it is separated from the laminated film adsorption table 14 than the peeling roll 30. And a transfer belt 33 that connects the peel roll 30 and the driven roll 31 and transports the peeled release film 4. The release roll 30 and the driven roll 31 include a plurality of transfer rolls 33. Grooves 34 and 35 are formed, and a transfer belt 33 is attached to each of the plurality of grooves, and the transfer belt 33 is attached so as to fit inside the outer peripheral surface of the peeling roll 30.

  The release film peeling roll unit 15 configured as described above is peeled off so as to be wound up almost uniformly over the entire width of the release film 4 by the adhesive peeling roll 30, and the peeled release film is transferred. The belt 33 is transported downward. Therefore, the released release film 4 can be separated and transferred from the peeling roll 30 by the transfer belt 33 without being wound around the peeling roll 30.

  Moreover, the release film peeling roll part 15 cross | intersects the transfer belt 33 between the peeling roll 30 and the driven roll 31, and the separating plate arrange | positioned so that the driven roll 31 side may protrude outside the transfer belt 33 from the crossing part. 36. The release film 4 being peeled off by the peeling roll 30 is transferred downward (in a direction away from the peeling roll 30) by the transfer belt 33, separated from the transfer belt 33 by the separation plate 36, and can be removed.

  In addition, the suction head 16 moves to a position where a circuit board (not shown) to which the cover lay film 2 is adhered is attached in a state where the cover lay film 2 from which the release film 4 has been peeled is sucked. It is preferable that the cover lay film 2 has a function of thermocompression bonding at a position. By adopting such a configuration, a release film peeling apparatus 10 having both a peeling function for peeling and removing the release film from the laminated film 14 and a sticking function for thermocompression bonding the coverlay film 2 to the circuit board is realized. It becomes possible.

  It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

  In the above-described embodiment, the example in which the release film 4 is peeled from the single laminated film 1 and removed is described. However, the number of laminated films to be peeled is not limited to one and can be increased further. is there. For example, a plurality of laminated films may be arranged on the laminated film suction table 14 in the Y direction, the X direction, or the Y direction and the X direction, and the release film may be peeled from each. In such a case, the circuit board may be arranged on the substrate adsorption table 20 in accordance with the arrangement of the laminated films, and the cover lay film from which the release film has been peeled may be attached.

  Moreover, in embodiment mentioned above, although the laminated | multilayer film 1 has peeled the release film 4 from what was formed in the single plate, for example, the long laminated | multilayer film wound by the roll is laminated film adsorption | suction table 14. Before feeding the material, the material may be fed by cutting into a single laminated film.

  Moreover, in embodiment mentioned above, although the release film peeling roll part 15 is integrally movable with the lamination film adsorption | suction table and can move to a X direction, after the adsorption | suction head 16 adsorb | sucks the lamination film 1, it is a release film peeling roll. It is good also as a structure which can move the part 15 independently with respect to a lamination | stacking film adsorption | suction table. In such a case, after the suction head 16 sucks the laminated film 1, if the laminated film suction table is moved to the initial position and then the release film peeling roll unit 15 is moved, the same as in the above-described embodiment. The release film 4 can be peeled and removed by a simple method.

  DESCRIPTION OF SYMBOLS 1 ... Laminated film, 2 ... Coverlay film, 3 ... Adhesive layer, 4 ... Release film, 10 ... Release film peeling apparatus, 11 ... Laminated film adsorption table unit, 13 ... Preliminary peeling roll, 14 ... Laminated film adsorption table, DESCRIPTION OF SYMBOLS 15 ... Release film peeling roll part, 16 ... Adsorption head, 30 ... Release roll, 31 ... Driven roll, 33 ... Transfer belt, 34, 35 ... Groove, 36 ... Separation plate, L ... Preliminary peeling margin part

Claims (9)

A release film peeling method for peeling and removing the release film from a single-layer laminated film composed of a coverlay film having a thermosetting adhesive layer and a release film laminated on the adhesive layer. ,
A step of vacuum adsorbing the release film side of the laminated film to a laminated film adsorption table;
While moving the laminated film in one direction, the preliminary peeling roll rolls the preliminary peeling roll while pressing the laminated film from the coverlay film side with the preliminary peeling roll, so that the end of the coverlay film is lifted from the release film. Forming a separation margin; and
Releasing the adsorption of the laminated film to the laminated film adsorption table, and vacuum adsorbing the coverlay film side of the laminated film to an adsorption head;
With the suction head adsorbing the laminated film, the release film having adhesiveness is brought into contact with the release film, and the peeling roll is rolled by moving the laminated film adsorption table and the peeling roll in the other direction. And peeling and removing the release film from the laminated film,
including,
The release film peeling method characterized by the above-mentioned. In the release film peeling method of Claim 1,
In the step of forming the preliminary peeling margin, the preliminary peeling roll is rolled while pressing the cover lay film to lift the end of the cover lay film from the release film, and the adhesive layer is exposed to air. Let
The release film peeling method characterized by the above-mentioned. In the release film peeling method according to claim 1 or 2,
In the step of vacuum suction of the laminated film by the suction head, the whole surface of the laminated film including the preliminary peeling margin is sucked by the suction head.
The release film peeling method characterized by the above-mentioned. In the release film peeling method according to any one of claims 1 to 3,
In the step of peeling and removing the release film, the release film peeled off while being peeled off by the release roll is transferred by a transfer belt, and the release film is released from the release roll and the transfer belt by a separation plate. Separating and removing,
The release film peeling method characterized by the above-mentioned. A release film peeling apparatus for peeling and removing the release film from a single laminated film composed of a coverlay film having a thermosetting adhesive layer and a release film laminated on the adhesive layer. ,
A laminated film adsorption table capable of reciprocating in one direction while vacuum adsorbing the release film side of the laminated film;
A pre-peeling roll that presses the laminated film from the coverlay film side and rolls by moving the laminated film suction table in one direction to form a pre-peeling margin at the end of the laminated film on the traveling direction side; ,
A suction head for vacuum-sucking the coverlay film side of the laminated film;
In a state where the laminated film suction table can move integrally, and the suction head sucks the laminated film, a peeling roll abuts on the release film at the preliminary peeling margin, and the laminated film suction table A release film peeling roll part for peeling the release film from the laminated film while the peeling roll is rolling by movement in the other direction;
Having
The release film peeling apparatus characterized by the above-mentioned. In the release film peeling apparatus according to claim 5,
The preliminary peeling roll is longer than the width dimension orthogonal to the moving direction of the laminated film and has adhesiveness on the surface, and rolls by moving the laminated film suction table while holding the laminated film. Is the configuration,
The release film peeling apparatus characterized by the above-mentioned. In the release film peeling apparatus according to claim 5 or 6,
The release film peeling roll portion is longer than the width dimension of the laminated film and has adhesiveness on the surface, and is separated from the laminated film adsorption table below the peeling roll on the lower side of the peeling roll. A driven roll disposed at a position, and a transfer belt that connects the release roll and the driven roll to transfer the released release film,
A plurality of grooves are formed in the peeling roll and the driven roll, and the transfer belt is attached to each of the plurality of grooves,
The transfer belt is mounted so as to fit inside the outer peripheral surface of the peeling roll,
The release film peeling apparatus characterized by the above-mentioned. In the release film peeling apparatus in any one of Claims 1-7,
The release film peeling roll section has a separation plate arranged so as to intersect the transfer belt between the peeling roll and the driven roll, and so that the driven roll side protrudes outside the transfer belt from the intersection. doing,
The release film peeling apparatus characterized by the above-mentioned. In the release film peeling apparatus according to claim 5,
The suction head moves to a position where a circuit board to which the cover lay film is adhered is attached in a state where the cover lay film from which the release film has been peeled is sucked, and the cover lay film is moved to a predetermined position on the circuit board. Has the function of thermocompression bonding,
The release film peeling apparatus characterized by the above-mentioned.

Images