JP2010006544A - Material feeding method and material feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably suppress slackening of sheet-shaped material by suppressing the separation or disorder of each sheet material when the sheet-shaped material is unwound from a laminated roll to be fed into a laminating molding machine. <P>SOLUTION: From the laminated roll 9 wherein three sheet-shaped materials 5a, 5b, 5c are superimposed and wound in a roll shape, the sheet-shaped materials 5a, 5b, 5c are individually separated and pulled out, and end portions of the sheet-shaped materials 5a, 5b, 5c are folded on a work stand 67 to form a fixed end portion 69. At that time, the middle sheet-shaped material 5b is wrapped around a separating roller 35 and a tension adding roller 43, and the outer side sheet-shaped material 5c is wrapped around a separating roller 37 and a tension adding roller 49. The fixed end portion 69 is fed into a material feeding port of the laminating molding machine. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a material supply method and a material supply apparatus for unwinding and supplying each sheet-like material from a laminated roll obtained by laminating a plurality of sheet-like materials in a roll shape.

  As an apparatus for laminating a three-layer sheet material in which metal foils are arranged on both sides of a film-like substrate, for example, a device described in Patent Document 1 below is known. This apparatus forms a laminated roll by winding a single polyimide film as a film-like base material and two copper foils as metal foils into a three-layered state in a superposed state. In addition, a sheet material in a three-layer state is unwound from this laminated roll and put into a laminating machine.

In this way, by forming a laminating roll in which three sheets of material are rolled up in advance, each material is individually unwound from a state of being individually wound into a roll, and then laminated. The production efficiency can be increased with respect to the device to be put into the machine.
JP 2008-6610 A

  However, when unrolling a plurality of laminated sheet-like materials from a laminated roll and putting them into a laminating machine, the outer sheet material has a longer unwinding amount due to the difference in the circumferential length of each sheet-like material in the laminated roll state. Therefore, if it is put into the laminating machine as it is, the looseness of the outer sheet material will gradually increase as the unwinding amount increases, and this loosening will cause wrinkles and creases in the laminated molded product. The quality of the product is deteriorated.

  For this reason, the above cited reference 1 also discloses that a means for preventing the loosening of the outer material due to the difference in circumferential length between the plurality of sheet-like materials is provided. If the leading end portion of the material is put into the laminating machine, separation and disorder of the respective sheet-like materials occur, and it becomes difficult to stably suppress the slackness of the sheet-like material.

  Therefore, the present invention has an object to stably suppress the slackness of the sheet-like material by suppressing the separation and disturbance between the sheet materials when the sheet-like material is unwound from the laminated roll and put into the laminating machine. .

  Invention of Claim 1 is a material supply method which unwinds each sheet-like material from the lamination roll which rolled up in the shape of a roll in the state which laminated a plurality of sheet-like materials, and supplies it to a laminating machine, The lamination roll Each sheet-like material is individually separated and unwound from the other sheet-like material, and the other sheet-like materials except the innermost sheet-like material of the unwound each sheet-like material are passed over the separation roller, and then the other sheet-like materials The tension is applied to a tension applying roller that applies tension to the material, and the respective end portions of the other sheet-like material and the innermost sheet-like material drawn out from the tension applying roller are overlapped with each other. The end portion is bent to form a fixed end portion, and the respective drawing lengths of the respective sheet-like materials from the laminated roll to the fixed end portion are changed from the laminated roll to the laminate. Characterized by a length dimension corresponding to the respective conveying path of the sheet material to the material inlet of the over-shot molding machine.

  Invention of Claim 2 is a material supply method which unwinds each sheet-like material from the lamination roll which carried out the roll shape in the state which laminated | stacked the several sheet-like material, and supplies it to a lamination molding machine, Comprising: The said lamination roll Each sheet-like material is individually separated and unwound from the other sheet-like material, and the other sheet-like materials except the innermost sheet-like material of the unwound each sheet-like material are passed over the separation roller, and then the other sheet-like materials The tension is applied to a tension applying roller that applies tension to the material, and the respective end portions of the other sheet-like material and the innermost sheet-like material drawn out from the tension applying roller are overlapped with each other. The end portions are thermocompression-bonded to form fixed end portions, and the respective drawing lengths of the respective sheet-like materials from the laminated rolls to the fixed end portions are changed from the laminated rolls to the laths. Characterized by a length dimension corresponding to the respective conveying path of the sheet material to the material inlet of the sulfonate molding machine.

  Invention of Claim 3 is a material supply apparatus which unwinds each sheet-like material from the lamination roll which carried out the roll shape in the state which laminated | stacked the several sheet-like material, and supplies it to a lamination molding machine, Comprising: The said lamination roll A separation roller that separates and guides the other sheet-like materials except for the innermost sheet-like material of each sheet-like material individually separated and unwound from the winding direction in the laminating roll; A tension applying roller that guides and pulls out the sheet-like material drawn from the separation roller in the same direction as the winding direction in the lamination roll, and applies tension to the sheet-like material with the separation roller, and The other sheet-like material pulled out from the tension applying roller and the innermost sheet-like material are fixed to each other by overlapping each other. Each of the sheet-shaped materials from the laminated rolls to the end of the sheet material that has been fixed in an overlapping manner. It is fixed so that it may become the length dimension corresponding to each conveyance path | route of each said sheet-like material to.

  A fourth aspect of the present invention is the material supply method according to the first or second aspect, wherein the widths of the plurality of sheet-like materials in the vicinity of the overlapped end portions are aligned with each other.

  The invention according to claim 5 is the material supply method according to claim 2, characterized in that the end portions of the plurality of sheet-like materials are bent and thermocompression bonded.

  Invention of Claim 6 is the material supply method of Claim 5, Comprising: These sheet-like materials consist of at least 3 sheets provided with metal foil on both sides of a film-form base material, The film-form base When the tip of the material is protruded from the tips of the two metal foils, and the ends of the plurality of sheet-like materials are folded and overlapped, the tip of the projected film-like substrate is bent inward to form a metal. It is characterized by interposing between the foils.

  A seventh aspect of the present invention is the material supply method according to any one of the first, second, fourth, fifth, and sixth aspects, wherein the plurality of sheet-like materials are provided on both sides of the film-like substrate by a metal foil. The separation roller and the tension applying roller are respectively provided corresponding to the film-like substrate and the metal foil on the outer side thereof, and each tension applying roller is rotated with one end side as a fulcrum. Each of the rotating arms is attached to the other end of the rotating arm, and when the fixed ends are formed by overlapping the ends of the plurality of sheet-like materials, the interval between the rotating arms is maintained, and then When the fixed end portion is put into the laminating machine, the interval between the rotating arms is released.

  Invention of Claim 8 is the material supply method of any one of Claim 1, 2, 4-8, Comprising: When throwing the fixed edge part of these sheet-like material into a laminating machine A tension is applied to the innermost sheet-like material among the plurality of sheet-like materials.

  According to the first, second, and third aspects of the present invention, the fixed end portion of the sheet-like material is put into the laminating machine so that the separation and disorder of the plurality of sheet-like materials can be suppressed, and the sheet by the tension applying roller. The slack of the material can be supplied to the laminating machine in a state where the slack of the material is more reliably and stably suppressed.

  In addition, when the end portions of the respective sheet-like materials stacked are heat-pressed, it is possible to prevent the thickness of the material from being increased as in the case of bending, and to cope with the prevention of deterioration of the laminate molding machine.

  According to the invention of claim 4, the sheet-like material is suppressed from being conveyed in an oblique direction with respect to the conveyance direction, the occurrence of defects such as wrinkles and folds is suppressed, and the quality of the laminate molded product is improved. Can do.

  According to the invention of claim 5, the adhesive area between the sheet-like materials is increased by thermocompression bonding with the end portion of the sheet-like material being bent, and the separation and disturbance of the plurality of sheet-like materials are more reliably performed. Can be prevented, and the handleability is improved.

  According to invention of Claim 6, the metal foil of the state which bent the edge part and made it mutually approach can be adhere | attached with a film-form base material, the thickness of the fixed edge part of a sheet-like material increases, and a strain ( (Rigidity) and it is difficult to break, and handling is further improved.

  According to the seventh aspect of the present invention, it is possible to prevent the inner sheet-like material from being unwound due to a larger amount of unwinding than the outer sheet-like material.

  According to the invention of claim 8, in the state where the ends of each sheet-like material are fixed to each other, the innermost sheet-like material can be loosened, and a higher-quality laminate molded product can be obtained. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a material supply apparatus 1 according to the first embodiment of the present invention, and FIG. 2 is a perspective view in which a part of the material supply apparatus 1 is omitted. As shown in FIG. 2, a plurality of sheet-like materials 5 (5a, 5b, 5c) are charged (supplied) into a laminating apparatus 3 as a laminating machine. In addition, in FIG. 3, although the form which uses the two material supply apparatuses 1 is shown, it can further increase with 3 units | sets and 4 units | sets, and only 1 unit | set may be sufficient.

  A plurality of sheet-like materials 5 are rolled up around a core 7 in a state of being stacked on each other to form a laminated roll 9, and each sheet-like material 5 is individually pulled out from the laminated roll 9 by a method described later. Then, it is put into the laminating apparatus 3 in a state of being overlapped by bending each end thereof.

  As shown in FIG. 4, the laminated roll 9 is formed by winding a plurality of long belt-like sheet-like materials 5a, 5b, and 5c around the core 7 in a roll shape. A laminated roll manufacturing apparatus 11 shown in FIG. 4 for producing the laminated roll 9 is provided with a single-layer roll 13a, 13b, 13c in which the respective sheet-like materials 5a, 5b, 5c are separately wound in a roll shape. Laminated rolls for supporting the winding core 7 for winding in a state in which the single layer roll supporting portions 15a, 15b, 15c to be supported and the sheet-like materials 5a, 5b, 5c from the single layer rolls 13a, 13b, 13c are laminated. The support part 17 is provided as a main component.

  In this example, the plurality of sheet-like materials 5a, 5b, and 5c are three pieces, and are composed of a copper foil 5a, a polyimide film 5b, and a copper foil 5c (hereinafter, reference numerals 5a, 5b, and 5c are designated as necessary. Both sheet-like material and polyimide film and copper foil are properly used). That is, the plurality of sheet-like materials here are composed of at least three sheets having metal foils on both sides of the film-like substrate. Therefore, the laminate material 21 manufactured by the laminate material manufacturing apparatus 19 shown in FIG. 5 is a double-sided copper foil laminate (laminate sheet) in which both sides of the polyimide film 5b become copper foils 5a and 5c.

  Of course, the plurality of sheet-like materials may be composed of two sheets consisting of one film-like substrate and one metal foil, and the material is not limited to polyimide film and copper foil. In addition, various materials conceivable for laminate molding can be used.

  The laminated material manufacturing apparatus 19 shown in FIG. 5 includes a material supply facility 23, the above-described laminate forming apparatus 3, and a product winding apparatus 27.

  The material supply equipment 23 unwinds a multilayer work 29 (a laminate of a plurality of sheet-like materials 5a, 5b, 5c) from a plurality (two in this case) of laminating rolls 9 and a material input port 3a of the laminating apparatus 3 To be supplied to The laminate molding apparatus 3 is configured by a known laminate molding apparatus, and a plurality of sheet-like materials 5a, 5b, and 5b constituting the multilayer workpiece 29 by passing the multilayer workpiece 29 from the material supply equipment 23 while being thermocompression bonded. 5c is heat-welded (laminated molding) to form a laminated material 21, and the laminated material 21 thus laminated is wound up by a product winding device 27.

  In addition, when the sheet-like materials 5a, 5b, and 5c are the above-mentioned materials, the thermocompression treatment by the laminate forming apparatus 3 is performed at a pressure of 20 to 80 [bar], a temperature of 180 to 400 [° C.], and a time of 1 to 10 [min]. It is desirable to perform within the range.

  FIG. 6 shows the principle of welding when laminating three sheet-like materials 5a, 5b, and 5c. As shown in FIG. 6A, by putting the sheet-like materials 5a, 5b, 5c before welding into the laminating apparatus 3, some preheating is applied at the material inlet 3a. Thereafter, the thermoplastic layer TP1 on the PI (polyimide) film surface is softened in the heating zone, and the softened thermoplastic layer TP1 is pushed into the mat (Cu) mat-treated surface. It cools and the laminated material 21 of FIG.6 (b) is obtained.

  Next, the material supply equipment 23 which is a characteristic part of the present invention will be described.

  Here, since the multilayer workpiece 29 is formed of a plurality of sheet-like materials 5a, 5b, and 5c (thicknesses are t1, t2, and t3, respectively), when unrolled from the laminated roll 9, the outer sheet The sheet-like material 5c is unwound by 2π × (t2) / 2 longer than the intermediate sheet-like material 5b, and is longer by 2π × (t2 + t3) / 2 per turn than the inner sheet material 5a. It will be unwound.

  Therefore, when the multilayer workpiece 29 is put into the laminate molding apparatus 3, the sheet-like materials 5a, 5b, 5c are not accurately laminated at the material inlet 3a of the laminate molding apparatus 3, and wrinkles are generated, resulting in the laminate material 21. May cause molding defects. Therefore, in order to prevent such a problem from occurring, the material supply apparatus 1 in the material supply facility 23 of the present embodiment includes a circumferential length difference absorption mechanism 30.

  Here, as shown in the said FIG. 3, two units | sets of the material supply apparatus 1 provided with the above-mentioned circumference difference absorption mechanism 30 are used. As shown in FIGS. 1 and 2, the material supply apparatus 1 includes a pair of side plates 31 that rotatably support both ends of the core 7 in the axial direction (direction orthogonal to the paper surface in FIG. 1). Laminating rolls 9 are arranged between the side plates 31 of each other.

  The laminated roll 9 is attached between the pair of side plates 31 after being removed from the laminated roll support portion 17 shown in FIG. 4. As an attachment method to the pair of side plates 31, for example, one side plate 31 is attached. A U-shaped opening is provided on the side, the end of the core 7 is inserted through the opening, and then the opening is closed by another closing member. A similar structure may be used for attaching and detaching the core 7 to and from the laminated roll support portion 17 of FIG.

  As shown in FIG. 1, the pair of side plates 31 on which the laminated rolls 9 are set are installed on the floor surface via leg portions 33 provided in the lower part. In this installed state, two separation rollers 35 and 37 are attached to the upper part of the right side portion of the pair of side plates 31 in FIG.

  The upper separation roller 35 separates and guides the intermediate polyimide film 5b from the multilayer work 29 so as to pull out the intermediate polyimide film 5b in the direction opposite to the winding direction of the laminated roll 9, and the lower separation roller 37 guides the outer copper foil 5c. It is separated from the multilayer work 29 and guided so as to be pulled out in the direction opposite to the winding direction in the laminated roll 9.

  A pair of roller support arms 41 as rotation arms whose one end side is rotatably supported via arm support pins 39 are attached to the pair of side plates 31 further below the lower separation roller 37 described above. A tension applying roller 43 is rotatably mounted between the other end sides of the tip of the roller support arm 41.

  The tension applying roller 43 guides and pulls out the polyimide film 5b drawn from the separation roller 35 in the same direction as the winding direction of the laminated roll 9, and tension between the polyimide film 5b and the separation roller 35. Is granted.

  A pair of roller support arms 47 whose one ends are rotatably supported via arm support pins 45 are attached to the pair of side plates 31 further below the arm support pins 39, and the tips of the pair of roller support arms 47 are attached. A tension applying roller 49 is rotatably mounted between the other end sides of each other.

  The tension applying roller 49 guides and pulls out the copper foil 5c drawn from the separation roller 37 in the same direction as the winding direction in the laminated roll 9, and tension between the copper foil 5c and the separation roller 37. Is granted.

  Here, the interval between the separation roller 35 corresponding to the polyimide film 5b and the tension applying roller 43 is narrower than the interval between the separation roller 37 corresponding to the outer copper foil 5c and the tension applying roller 49.

  These roller support arms 41 and 47 are urged by the urging means so that the roller support arms 41 and 47 rotate in the direction in which the tension applying rollers 43 and 49 press the sheet-like material 5b and 5c. Yes.

  The biasing means of this embodiment has a structure in which wires 51 and 53 having one ends connected to the vicinity of the tips of the roller support arms 41 and 47 are pulled by a slider 57 driven by an electric motor 55. That is, a screw rod 59 is connected to the electric motor 55, and the above-described slider 57 composed of a ball guide nut is screwed to the screw rod 59. The other end of each of the wires 51 and 53 is connected to the slider 57. Further, a wire guide roller 61 is rotatably provided at the corners of the pair of side plates 31, and the wires 51 and 53 are guided by the wire guide roller 61.

  Here, as described above, the outer copper foil 5c and the polyimide film 5b positioned on the inner side thereof have different unwinding amounts due to the difference in circumferential length, so that the rotation angles of the corresponding two roller support arms 41 and 47 also change. It is necessary to let Therefore, in the present embodiment, the connecting portions 63 and 65 of the two roller support arms 41 and 47 and the two wires 51 and 53 that rotate by the movement of one slider 57 and the rotation of the roller support arms 41 and 47. The distance from the center (arm support pins 39, 45) is varied.

  That is, by making the distance between the arm support pin 45 corresponding to the outer sheet-like material 5c and the connecting portion 65 shorter than the distance between the arm support pin 39 corresponding to the inner sheet-like material 5b and the connecting portion 63, The rotation angle of the roller support arm 47 corresponding to the outer sheet-like material 5c is made larger than the rotation angle of the roller support arm 41 corresponding to the inner sheet-like material 5b.

  In the present invention, the urging means described above is not limited to the electric motor 55 but can be realized in various forms such as a spring member and an air cylinder.

  Next, in the material supply apparatus 1 provided with the circumference difference absorbing mechanism 30 as described above, the edge processing in the previous stage (pre-process) of supplying the sheet-like material 5a, 5b, 5c to the laminate molding apparatus 3 is performed. explain.

  First, after unwinding the multilayer work 29 from the laminating roll 9 manufactured by the laminating roll manufacturing apparatus 11 shown in FIG. 4, as shown in FIG. 7 (a), three sheet-like materials 5a, 5b, Separate 5c individually. Then, as shown in FIG.7 (b), the innermost copper foil 5a is pulled out upwards as it is.

  Subsequently, the intermediate polyimide film 5b is pulled out in the same direction as the copper foil 5a through the separation roller 35 and the tension applying roller 43 as shown in FIG. 7C, and further as shown in FIG. 7D. The outer copper foil 5c is pulled out in the same direction as the copper foil 5a and the polyimide film 5b through the separation roller 37 and the tension applying roller 49.

  Then, as shown in FIG. 1, the end portions of the three sheet-like materials 5a, 5b, and 5c drawn out as described above are overlapped with each other on the work table 67 installed on the pair of side plates 31 and bent. .

  At this time, the intermediate polyimide film 5b is placed on the inner copper foil 5a placed on the work table 67, and the outer copper foil 5c is placed thereon. Then, the end portions of the three sheet-like materials 5a, 5b, and 5c that are overlapped with each other are bent as described above to form a fixed end portion 69 that fixes the end portions to each other. At this time, the widths of the sheet-like materials 5a, 5b, and 5c are aligned with each other.

  Here, at the beginning of pulling out the multi-layer workpiece 29 from the laminating roll 9, the tip is substantially at the same position. For this reason, when the drawing paths (conveyance paths) of the three sheet-like materials 5a, 5b, and 5c are different from each other as shown in FIG. 1, the end portions of the three sheet-like materials 5a, 5b, and 5c are When superimposing, in order to pull out the end portion of the outermost copper foil 5c of the drawing path to the work table 67, it is necessary to draw out the sheet-like materials 5b and 5c having a shorter drawing path than that. And about the part with which this sheet-like material 5b and 5c were pulled out excessively, it cut | disconnects suitably etc., and the front-end | tips of each edge part will be aligned.

  At this time, as shown in FIG. 1, the two roller support arms 41 and 47 are substantially parallel to each other with the tip side facing diagonally upward to the right, as shown in FIG. Further, in this state, the wires 51 and 53 are in a tensioned state with almost no slack, and the electric motor 55 is in a stopped state.

  Then, the work table 67 is removed from the material supply apparatus 1 in a state where the end portions of the three sheet-like materials 5a, 5b, and 5c are fixed to each other to form the fixed end portion 69 as shown in FIG. In this state, as shown in FIG. 3, the laminate is set in the vicinity of the material inlet 3 a of the laminating apparatus 3. This set operation is configured to be detachably attached to an attachment wall (not shown) installed on one side in a direction orthogonal to the paper surface in FIG.

  At this time, in the present embodiment, two material supply devices 1 are used, and the lower material supply device 1 shown in FIG. 3 moves the material supply device 1 shown in FIG. 1 clockwise in FIG. It is assumed that the upper material supply device 1 is rotated by 90 degrees, and the upper and lower materials supply apparatus 1 is rotated by 180 degrees in the vertical direction from the rotated state by 90 degrees.

  When the two material supply apparatuses 1 are set as shown in FIG. 3, the respective fixed end portions 69 are input into the material input port 3 a of the laminate forming apparatus 3. At this time, the laminate forming apparatus 3 is continuously operated, and the fixed end portion 69 is input in this operating state, that is, in a state where the pair of rollers 71 in the material input port 3a is rotating.

  At this time, the length of the lead-out path of the copper foil 5a is determined when forming the fixed end portion 69 of FIG. 1 so that the innermost copper foil 5a is not slackened. Specifically, the drawing path (length) of the copper foil 5a can be changed by changing the position of the work table 67 in the left-right direction in FIG.

  In order to prevent the inner copper foil 5a from slackening, L02-L01> L12-L11, L03-L02> L13-L12 in FIGS. Here, L01 is the length of the copper foil 5a between the unwinding position A of the laminating roll 9 in FIG. 3 and the position B between the pair of rollers 71 of the laminating apparatus 3, and L02 is the tension application in FIG. The length L03 of the polyimide film 5b between the roller 43 and the position B is the length of the copper foil 5c between the tension applying roller 49 and the position B in FIG. On the other hand, L11 is the length of the copper foil 5a between the unwinding position C of the laminated roll 9 in FIG. 1 and the corner D of the work table 67, and L12 is the tension applying roller 43 in FIG. L13 is the length of the copper foil 5c between the tension applying roller 49 and the corner D in FIG.

  After the fixed end portion 69 is inserted into the material input port 3a, the electric motor 55 is driven to apply tension to the two outer sheet-like materials 5b and 5c to remove the slack generated during the setting. The circumferential length difference between the three sheet-like materials 5a, 5b, and 5c is absorbed. After that, in FIG. 3, a pair of upper and lower three sheet-like materials 5 a, 5 b and 5 c are laminated while being continuously conveyed by the laminating apparatus 3.

  When the unwinding of the sheet-like materials 5a, 5b, 5c from the laminating roll 9 is almost completed, the two roller support arms 41, 47 are rotationally displaced to a position indicated by a two-dot chain line in FIG. Thus, the difference in circumferential length of each sheet-like material 5a, 5b, 5c for one laminated roll 9 is absorbed.

  In the present embodiment, the length of each sheet-like material 5a, 5b, 5c from the laminating roll 9 to the fixed end 69 is set to be different from the laminating roll 69 to the material input port 3a of the laminating apparatus 3. It is an appropriate length dimension corresponding to (depending on) the respective transport paths of the sheet-like materials a, 5b, and 5c.

  As described above, according to the present embodiment, the circumferential length difference between the three sheet-like materials 5a, 5b, and 5c, which is generated when the multilayer work 29 is pulled out from the laminated roll 9, is determined by the two roller support arms 41, 47 is absorbed by gradually rotating, and the slack of the outer two sheet-like materials 5b and 5c, which is larger than the innermost copper foil 5a, can be suppressed.

  At this time, in the present embodiment, since the end portions of the respective sheet-like materials 5a, 5b, and 5c are bent and the fixed end portion 69 is formed, the end portions are separated or disturbed. Therefore, it is possible to stably apply the tension by the rotation of the roller support arms 41 and 47 based on the operation of the electric motor 55 immediately after that, and it is possible to reliably absorb the circumference difference.

  In this way, the circumferential difference absorbing mechanism 30 is stably operated to suppress the slack of the three sheet-like materials 5a, 5b, and 5c, thereby suppressing the occurrence of defects such as wrinkles and folds. Quality can be improved.

  In the present embodiment, the end portions of the three sheet-like materials 5a, 5b, and 5c can be fixed by a simple operation of bending the end portions of the sheet-like materials 5a, 5b, and 5c.

  Furthermore, according to the present embodiment, by aligning the width when superimposing, the sheet-like materials 5a, 5b, 5c are suppressed from being conveyed in an oblique direction with respect to the conveying direction, and wrinkles, folds, etc. It is possible to more reliably suppress the occurrence of defects and improve the quality of the laminate molded product.

  Of the sheet-like materials 5a, 5b, and 5c, the middle and outer sheet-like materials 5b and 5c pass through the separation rollers 35 and 37 and the tension applying rollers 43 and 49, respectively. Therefore, it is effective to align the width when the end portions are overlapped as described above.

  FIG. 8 is a front view showing a material supply apparatus 1 according to the second embodiment of the present invention. In the second embodiment, the fixed end portion 69 formed by overlapping the end portions of the three sheet-like materials 5a, 5b, and 5c is bonded by heating.

  That is, the bent end portions of the three sheet-like materials 5a, 5b, and 5c are placed on the iron 75 that rises in temperature at the tip of the heater 73, which is a heating means, and the pressure head 77 is pressed from above. Then, the thermoplastic layer of the intermediate polyimide film 5b is softened and bonded to the copper foils 5a and 5c on both sides thereof. The fixing means 78 is constituted by the heater 73 and the pressure head 77 described above.

  The pressure head 77 is attached to the tip of the swing arm 79, and the swing arm 79 swings around the swing support shaft 83 via the support member 81. The swing support shaft 83 is rotatably attached to the heater 73 via a bracket 84, and the swing arm 79 is rotated in the clockwise direction in FIG. Thus, the pressure head 77 pressurizes the fixed end portion 69 overlapped.

  An operating portion 87 is provided on the proximal end side of the swing arm 79, and the swing arm 79 is swung counterclockwise by pressing the operation portion 87 as indicated by an arrow E, and is fixed by the pressure head 77. Release the pressure applied to the end 69.

  Note that the pressure applied to the fixed end portion 69 of the pressure head 77 is sufficiently lower than the pressure applied at the time of welding in the laminate molding apparatus 3, thereby suppressing carbonization due to melting of the material and applying to the laminate molding apparatus 3. Prevents foreign matter from entering the product when materials are added.

  As described above, when fixing the end portions of the three sheet-like materials 5a, 5b, and 5c, the end portions of the sheet-like materials 5a, 5b, and 5c that are overlapped with each other are laminated by heating. When thrown into the molding apparatus 3, the separation and disturbance of the respective sheet-like materials 5a, 5b, 5c can be more reliably prevented as compared with the case where they are simply bent.

  In addition, when the end portions of the three sheet-like materials 5a, 5b, and 5c are heat-pressed as described above, it is possible to prevent an increase in the thickness of the laminated material as in the case of bending, and a laminate molding apparatus 3 can also be prevented.

  Further, as shown in FIG. 9 (a), when each of the end portions of the three sheet-like materials 5a, 5b, 5c is bent, in the state of being bent so as to meander multiple times (here, three times), By bonding by heating as in the second embodiment, there are three or more bonding portions 89 as shown in FIG. 9B, and the shift between the plurality of sheet-like materials 5a, 5b, and 5c is more reliably performed. This can be prevented, handling is improved, and the loading operation into the laminate forming apparatus 3 is facilitated.

  Further, as shown in FIG. 10, the tip of the polyimide film 5b is projected beyond the tips of the copper foils 5a and 5c to form a film projection 5b1, and the end portions of the three sheet-like materials 5a, 5b and 5c. Are folded and overlapped, the film projection 5b1 at the tip of the projected polyimide film 5b is folded inward and interposed between the copper foils 5a and 5c.

  In this state, by bonding by heating as in the second embodiment, the copper foils 5c that are bent and approached can be bonded together by the protruding portions 5b1 of the polyimide film 5b, and the sheet-like materials 5a and 5b , 5c are fixed to each other, and the fixed end portion 69 is increased in thickness, resulting in a strain (rigidity) that hardly breaks and further improves handling.

  FIG. 11 shows a third embodiment of the present invention. The third embodiment is different from the first embodiment shown in FIG. 1 in that a pair of sheet-like materials 5a, 5b, and 5c are fixed as shown in FIG. An interval holding member 91 for holding the interval between the roller support arms 41 and 47 is interposed.

  The interval holding member 91 is rotatably attached to the roller support arm 47 side via a support pin 93, and the tip end side is detachably connected to the side edge of the roller support arm 41 by an appropriate method. As this connection structure, for example, a bifurcated receiving portion that receives the roller support arm 41 is formed at the tip of the interval holding member 91.

  In the state where the distance between the roller support arms 41 and 47 is maintained as shown in FIG. 11A by such a distance holding member 91, the two outer sheet materials 5b and 5c having different circumferential lengths are applied to the tension applying roller. By hung over 43 and 49, it can prevent that the sheet-like material 5b becomes longer than the sheet-like material 5c of the outer side, and tension cannot be given.

  When the end portions of the sheet-like materials 5a, 5b, and 5c are fixed using the interval holding member 91 as shown in FIG. 11A, the fixed end portion 69 is attached to the laminate forming apparatus 3 as shown in FIG. Then, the interval holding member 91 is removed from the roller support arm 41 to release the interval holding, and thereafter, the electric motor 55 is driven and the circumferential length difference absorbing mechanism 30 is operated in the same manner as described above.

  FIG. 12 shows a fourth embodiment of the present invention. The fourth embodiment is provided with a movable guide roller 95 for guiding the innermost copper foil 5a with respect to the first embodiment shown in FIG.

  As shown in FIG. 12A, the movable guide roller 95 has an inner copper foil 95 whose surface on the side of the polyimide film 5b is substantially fixed when fixing the ends of the three sheet-like materials 5a, 5b, 5c. The position is such that it comes into contact with a straight line, and is attached to the side plate 3 so as to be movable leftward from this position in FIG.

  For the movement of the movable guide roller 95, for example, a guide groove 97 is provided in the side plate 31 along the moving direction, and both end portions of the movable guide roller 95 are movably inserted into the guide groove 97. Be able to fix in position.

  In the state of FIG. 12A, the material supply device 1 is set in the vicinity of the laminate molding device 3 as shown in FIG. 12B in the same manner as in FIG. 3, and the fixed end 69 is put into the material of the laminate molding device 3. After being put into the mouth 3a, the movable guide roller 95 is moved upward in FIG. 12B to remove the slack of the inner copper foil 95.

  Thereby, the slackness of the copper foil 5a located on the innermost side can be suppressed and the quality of the laminate molded product can be further enhanced.

It is a front view which shows the material supply apparatus concerning the 1st Embodiment of this invention. It is the perspective view which abbreviate | omitted a part of material supply apparatus of FIG. It is a front view which shows the state which throws in several sheet-like material to a lamination molding apparatus using the material supply apparatus of FIG. It is a front view of a lamination roll manufacturing apparatus. It is a front view of the manufacturing apparatus of laminated material. It is explanatory drawing which shows the welding principle at the time of laminating three sheet-like materials. It is explanatory drawing which shows the operation | work which unwinds a multilayer workpiece | work from a lamination roll, isolate | separates three sheet-like materials, and draws out sequentially. It is a front view which shows the material supply apparatus concerning the 2nd Embodiment of this invention. The modification of 2nd Embodiment is shown, (a) is a partial front view which shows the state which bends and heats the edge part of a sheet-like material 3 times, (b) shows the position adhere | attached by (a). It is a perspective view of the edge part of the sheet-like material shown. It is a partial front view which shows the other modification of 2nd Embodiment of this. The 3rd Embodiment of this invention is shown, (a) is a front view corresponding to FIG. 1, (b) is a front view corresponding to FIG. The 4th Embodiment of this invention is shown, (a) is a front view corresponding to FIG. 1, (b) is a front view corresponding to FIG.

Explanation of symbols

3 Laminating machine (laminating machine)
5 (5a, 5b, 5c) Sheet material 5a Inner copper foil (metal foil)
5b Polyimide film (film-like substrate)
5b1 film protrusion (tip of protruding film-like substrate)
5c Outside copper foil (metal foil)
9 Laminating rolls 35, 37 Separating rollers 41, 47 Roller support arm (rotating arm)
43, 49 Tension roller 69 Fixed end portions (overlapping end portions) of a plurality of sheet-like materials
78 Fixing means

Claims (8)

A material supply method for unwinding and supplying each sheet-like material from a laminating roll obtained by laminating a plurality of sheet-like materials into a roll, and supplying each sheet-like material individually from the laminating roll After separating and unwinding, the other sheet-like material except the innermost sheet-like material of each unwound sheet material is passed over the separation roller, and then tension is applied to the other sheet-like material. The other sheet-like material drawn out from the tension-applying roller and the innermost sheet-like material are overlapped with each other, and the overlapped end is bent to a fixed end. Each sheet-like material is drawn out from the lamination roll to the fixed end portion, and the material from the lamination roll to the lamination molding machine. Material supply method characterized by a length dimension corresponding to the respective conveying path of the sheet material to the entrance.   A material supply method for unwinding and supplying each sheet-like material from a laminating roll obtained by laminating a plurality of sheet-like materials into a roll, and supplying each sheet-like material individually from the laminating roll After separating and unwinding, the other sheet-like material except the innermost sheet-like material of each unwound sheet material is passed over the separation roller, and then tension is applied to the other sheet-like material. The other sheet-like material pulled out from the tension-applying roller and the innermost sheet-like material are overlapped with each other, and the overlapped ends are heat-pressed. A fixed end portion is formed, and the length of each sheet-like material drawn from the laminated roll to the fixed end portion is determined from the laminated roll to the material of the laminating machine. Material supply method characterized by a length dimension corresponding to the respective conveying path of the sheet material to inlet. A material supply device for unwinding each sheet-like material from a laminating roll that is wound in a roll in a state of laminating a plurality of sheet-like materials and supplying the sheet-forming material to a laminating machine. A separation roller that separates and guides other sheet-like materials except for the innermost sheet-like material of each of the taken-out sheet materials in a direction opposite to the winding direction in the stacking roll, and a sheet drawn from the separation roller The sheet-like material is guided in the same direction as the winding direction in the laminated roll and pulled out, and a tension applying roller that applies tension to the sheet-like material with the separation roller, and the tensioned roller drawn out from the tension applying roller A fixing means for fixing each of the other sheet-like materials and the end portions of the innermost sheet-like material on top of each other. Each of the sheet-like materials from the lamination roll to the material input port of the laminate molding machine has a pulling length of each sheet-like material from the lamination roll to the end portion fixed by overlapping. A material supply device, wherein the material supply device is fixed so as to have a length corresponding to each conveyance path.   3. The material supply method according to claim 1, wherein the widths of the plurality of sheet-like materials in the vicinity of the overlapped end portions are aligned with each other.   The material supply method according to claim 2, wherein the ends of the plurality of sheet-like materials are bent and heat-pressed.   The plurality of sheet-like materials are composed of at least three sheets provided with metal foils on both sides of the film-like base material, and the leading ends of the film-like base members protrude from the leading ends of the two metal foils. 6. The material supply method according to claim 5, wherein when the end portions of the material are folded and overlapped, the tip of the projected film-like substrate is bent inward and interposed between the metal foils. .   The plurality of sheet-like materials are composed of at least three sheets provided with metal foils on both sides of the film-like substrate, and the separation roller and the tension applying roller correspond to the film-like substrate and the metal foil on the outside thereof. Each of the tension applying rollers is attached to the other end of a rotating arm that rotates around one end, and the fixed ends are formed by overlapping the ends of the plurality of sheet-like materials. The distance between the respective rotary arms is held when the fixed end is inserted into the laminating machine, and the distance between the rotary arms is released. , 2, 4, 5, 6. The material supply method according to claim 1.   The tension is applied to the innermost sheet-like material among the plurality of sheet-like materials when the fixed end portions of the plurality of sheet-like materials are put into a laminating machine. , 4-8. The material supply method of any one of 4-8.

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