JP2006103177A - Vacuum laminating apparatus and vacuum laminating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To laminate and form a variety of laminates fed from a preceding process by a pressurizing film body of a vacuum laminating apparatus without producing a defective product. <P>SOLUTION: An upper platen 12 and a lower platen 13 opposed to each other are, respectively, provided with pressurizing film bodies 18 and 29, and a vacuum chamber 14 is formed between the upper platen 12 and the lower platen 13. The pressurizing film body 18 is bulged to the lower platen 13, or the pressurizing film body 29 is bulged to the upper platen in accordance to a variety of laminates such as a laminate C or a laminate D to be pressurized, and thereby only one face of the upper face or the lower face of the laminate C or the laminate D is selectively pressurized. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum laminating apparatus and a vacuum laminating method for laminating and forming a laminated body in which laminates are stacked using a pressurized film body in a vacuum chamber.

  Conventionally, a vacuum laminating apparatus and a vacuum laminating method are known in which a laminated body in which a laminate is stacked is pressurized using a pressure film body in a vacuum chamber and laminated. As shown in Patent Document 1, the pressurizing film body of the vacuum laminating apparatus is attached to one of the upper board and the lower board, and pressurizes the laminated body by bulging toward the other board. Things are the most common. Moreover, as shown in Patent Document 2, a device in which a pressure film body that pressurizes the stacked body is provided on both the upper and lower panels of the vacuum stacking apparatus is also known. In Patent Document 2, the laminated body is pressurized toward the upper board by the pressure film body of the lower board, and then is pressed toward the lower board by the pressure film body of the upper board to press both sides of the laminated body. It is described.

  However, both of Patent Document 1 and Patent Document 2 are assumed to be subjected to lamination molding on various laminates sent from the previous process by a vacuum laminating apparatus and to take into account the surface to be pressurized at that time. It has not been. Performing lamination molding of various laminates sent from the previous process with a single vacuum lamination apparatus has great advantages in terms of cost reduction of the production line, but has the following problems. In other words, depending on how the laminates are stacked in the previous process, it is necessary to apply pressure only from the top surface, and when pressed from the bottom surface, it becomes a defective product. Both the non-defective laminates are sent to the vacuum laminator. However, the conventional vacuum laminating apparatus could not be laminated correspondingly. This point will be further described with reference to FIGS. 5 and 6. As in the example of FIG. 5, the laminate a having a small outer shape (or area) is on the upper side, the outer shape (or area) is larger, and a glass plate or the like. When a laminate c in a state where a laminate b made of a brittle body is stacked on the lower side is formed by a vacuum laminator, pressurization by a pressurized film body d from the side of the lower plate adjacent to the laminate b When performing, there existed a problem that the edge part vicinity b1 of the said laminated body b cracked or deform | transformed. Further, as in the example of FIG. 6, a laminate g in which a laminate e having a gap such as a hole is laminated on the lower side and a laminate f having a relatively low strength such as a thin resin plate is laminated on the upper side is obtained by a vacuum laminating apparatus. In the case of laminate molding, there has been a problem that when pressurization is performed from the upper board side by the pressurizing film body h, a part f1 of the upper laminate f is deformed and recessed. As a method for coping with such a problem, it is conceivable to provide a device that vertically inverts the laminated body c or the laminated body g in the pre-process of the vacuum laminating device. There is a problem because it is necessary to consider means for preventing the mutual displacement.

Japanese Patent Laid-Open No. 8-132531 (Claim 1, FIG. 1) Japanese Patent Laid-Open No. 10-641 (0030, 0031, FIG. 3, FIG. 4)

  In view of the above problems, the present invention provides a vacuum laminating apparatus and a vacuum laminating method that can be laminated and molded by pressing with a pressure film body without causing defective products in various laminated bodies sent from the previous step. The purpose is to do. In addition, when laminating various laminates, a vacuum laminator and a vacuum laminate that do not require a dedicated vacuum laminator for each laminate, a device that inverts the laminate, etc., and can reduce costs. It aims to provide a method.

  In the vacuum laminating apparatus according to claim 1 of the present invention, a pressure film body is provided on each of the upper and lower boards facing each other, and a vacuum chamber is formed between the upper board and the lower board. In a vacuum laminating apparatus that pressurizes the laminated body by expanding the pressurized film body of the board toward the other board, it is provided on either the upper or lower board corresponding to the various laminated bodies to be pressurized. The pressed film body is swelled toward the other board, and the laminate is selectively pressurized only from one of the surfaces.

  The vacuum laminating apparatus according to claim 2 of the present invention is the vacuum laminating apparatus according to claim 1, wherein a vacuum chamber forming member is disposed at a carry-in port and a carry-out port of the laminated body of the vacuum laminating device. It is characterized in that it is selectively held on the same board side as the pressurizing film used for pressurization.

  In the vacuum lamination method according to claim 3 of the present invention, a pressure film body is provided on each of the opposing upper and lower boards, and a vacuum chamber is formed between the upper and lower boards, In the vacuum lamination method of pressurizing the laminated body by bulging the pressurized film body of the board toward the other board, it is provided on either the upper or lower board corresponding to the various laminated bodies to be pressurized. The pressed film body is expanded toward the other board, and the laminate is selectively pressurized only from one surface.

  The vacuum lamination method according to claim 4 of the present invention is the method according to claim 3, wherein the laminate is formed by stacking a laminate having a small outer shape and a laminate having a larger outer shape and made of a brittle body such as a glass plate. A pressurizing film body close to a laminate having a small outer shape is swelled toward the other board, and the laminate is pressurized only from the side of the laminate having a small outer shape. .

  In the vacuum laminating apparatus and the vacuum laminating method of the present invention, a pressure film body is provided on each of the opposing upper and lower boards, a vacuum chamber is formed between the upper and lower boards, In a vacuum laminating apparatus that pressurizes the laminated body by causing the pressurized film body to bulge out toward the other board, it is applied to the upper and lower boards corresponding to the various laminated bodies to be pressurized. The pressure film body is swelled toward the other board so that the laminated body is selectively pressurized only from either side, so that defective products are generated in various laminated bodies sent from the previous process. And can be laminated without any problems.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view illustrating a state in which a stacked body in which a stacked body having a large outer shape is stacked on the lower side is carried into the vacuum stacking apparatus in the vacuum stacking apparatus of the present embodiment. FIG. 2 is a cross-sectional view showing a state in which the laminated body carried in in the state of FIG. 1 is pressurized toward the lower board by the pressurizing film body provided on the upper board. FIG. 3 is a cross-sectional view showing a state in which a stacked body in which a stacked body having a large outer shape is stacked on the upper side is carried into the vacuum stacking apparatus in the vacuum stacking apparatus of the present embodiment. FIG. 4 is a cross-sectional view showing a state in which the stacked body loaded in the state of FIG. 3 is pressed toward the upper board by the pressurizing film body provided on the lower board. 1 to 4, the same reference numerals indicate the same or corresponding parts.

  An outline of the vacuum laminating apparatus 11 will be described with reference to FIGS. 1 and 2. The vacuum laminating apparatus 11 is provided with an upper board 12 and a lower board 13 facing each other, and the lower board 13 is moved toward the upper board 12. As a result, a vacuum chamber 14 having a rectangular shape in plan view is formed inside. The upper board 12 will be described. A recess 15 is formed in the approximate center of the lower surface of the upper board 12. A plate plate 16 having a heating means such as a heater on the back surface and having a flat bottom surface and a heat insulating plate 17 disposed on the back surface of the plate plate 16 are attached to the recess 15. A pressure film 18 is attached to substantially the entire lower surface of the upper board 12 so as to isolate the plate plate 16 and the like from the vacuum chamber 14. The pressurizing film body 18 is made of a material having elasticity, flexibility, elasticity, and heat resistance (for example, silicon rubber), and is fixed to the lower surface 12 a of the peripheral portion of the upper panel 12 by a plurality of bolts 19. An O-ring 20 is disposed on the lower surface 12 a of the peripheral portion of the upper plate 12 to seal between the upper plate 12 and the pressurizing film body 18. Further, an air flow path 21 is provided inside the upper board 12, and one of the air flow paths 21 is opened in the recess 15, and the other is connected to a vacuum device and a compressed air supply device (not shown). .

  Further, one side and the other side of the upper board 12 serve as a carry-in port 22a and a carry-out port 23a of the laminate C that is laminated and formed inside the vacuum chamber 14. A cylinder 24 is fixed to the outer side of one side and the other side of the upper plate 12 with the rod 24a facing downward, and the vacuum chamber forming member 25 having a predetermined plate thickness can be held by the rod 24a. . More specifically, a through hole 25a having a hole diameter larger than the diameter of the rod 24a is formed in the vertical direction in the center on the outer side of the vacuum chamber forming member 25. The rod 24a can be inserted into the through hole 25a, and the vacuum chamber forming member 25 can be held from the rod 24a by a double nut 24b detachably provided at the tip of the rod 24a. ing. By contracting the rod 24a of the cylinder 24, the vacuum chamber forming member 25 can be pressed against the peripheral lower surface 12a of the upper board 12 through the pressurizing film body 18. Further, an air flow path 25b is provided inside the vacuum chamber forming member 25, and one of the air flow paths 25b is opened toward the vacuum chamber 14 side. The other side of the air flow path 25b is connected to a vacuum device (not shown) outside the vacuum laminating device 11 and can be opened to the outside.

  Next, the lower board 13 will be described. The lower board 13 has substantially the same structure as the upper board 12. A recess 26 is formed in the center of the lower plate 13 in a plan view. The recess 26 has a heating plate such as a heater on the back surface and a plate plate 27 having a flat top surface, and a heat insulating plate on the back surface of the plate plate 27. 28 is disposed. A pressure film body 29 is attached to substantially the entire upper surface of the lower board 13 so as to cover the plate plate 27 and the like. The pressurizing film body 29 is made of silicon rubber, and is fixed to the upper surface 13 a of the peripheral portion of the lower board 13 by a plurality of bolts 30. An O-ring 31 is disposed on the upper surface 13 a of the peripheral portion of the lower plate 13 to seal between the lower plate 13 and the pressurizing film body 29. In addition, an air flow path 32 is provided inside the lower board 13, and one of the air flow paths 32 is opened in the recess 26, and the other is connected to a vacuum device and a compressed air supply device (not shown). .

  Further, the one side and the other side of the lower board 13 are also a carry-in port 22a and a carry-out port 23a of the laminated body C. Cylinders 33 are fixed to the outer side of one side and the other side of the lower board 13 with the rod 33a facing upward. The vacuum chamber forming member 25 can be held also on the lower plate 13 side by the rod 33a and the nut 33b of the cylinder 33 provided on the lower plate 13 having the same structure as the upper plate 12. . Then, by providing only one vacuum chamber forming member 25 having a predetermined plate thickness (for example, about 20 mm) between the upper plate 12 and the lower plate 13, an air flow path having a predetermined diameter or more in the vacuum chamber forming member 25. 25b can be provided, and in some cases, it is possible to form a cooling medium flow path for preventing the O-rings 20, 31 and the carrier film F from being exposed to high temperatures. On the other hand, when the vacuum chamber forming member is divided and attached to the upper and lower panels as in Patent Document 2, each vacuum chamber forming member has a plate thickness for providing an air flow path having a predetermined diameter or more. It becomes difficult to secure.

  The vacuum chamber forming member of the vacuum laminating apparatus is not essential for the present invention, and the vacuum chamber may be formed by directly contacting the upper board and the lower board. When the vacuum chamber forming member is provided, the vacuum chamber forming member may be either a frame formed around the vacuum chamber or a member provided only at the carry-in port and the carry-out port. Furthermore, the upper board and the lower board may be fixedly provided to each other, and the vacuum chamber forming member may be moved to form a vacuum chamber. Further, the heating means of the vacuum laminating apparatus may be other means such as a resistance heating plate or a heat medium. Furthermore, a cooling medium flow path is provided on the upper and lower boards to prevent the upper and lower boards from rising in temperature, the laminate is cooled via the plate plate, and the O-ring and carrier film are exposed to high temperatures. May be prevented.

  Next, a vacuum lamination method using the vacuum lamination apparatus 11 of this embodiment will be described. In this embodiment, a laminate C or a laminate for a solar cell in which a solar cell, a filler, a back plate and the like are stacked as a laminate A having a small outer shape and a glass plate is stacked as a laminate B having a larger outer shape. The case where the lamination molding of D is performed will be described. As the laminate, the effect of the present invention is great for those using brittle bodies that are easily broken such as glass plates such as liquid crystal panels. However, even if the laminate is a resin plate or the like as shown in FIG. 6, it is a laminate with relatively low strength, and the surface to be pressed to prevent deformation is limited to one surface. Those that are affected by the flow of the molten resin depending on the direction of pressurization are also subject to this.

  In the example shown in FIG. 1 and FIG. 2, a laminate C in a state in which a laminate A having a small outer shape is placed on the upper side and a laminate B having a larger outer shape is placed on the lower side is It is an example of laminate molding. In this example, the vacuum chamber forming member 25 is held on the upper plate 12 side by the cylinder 24 of the upper plate 12, and the laminated body C is disposed on the lower surface and the lower surface of the vacuum chamber forming member 25 held on the upper plate 12. It is carried in by the carrier film F from the carry-in port 22a formed between the upper surfaces of the pressurizing film bodies 29 provided on the peripheral upper surface 13a of the board 13. And if the laminated body C is carried in to the approximate center of the vacuum laminating apparatus 11, the movement of the carrier film F will be stopped.

  Next, the lower board 13 is raised so that the lower surface of the vacuum chamber forming member 25 and the upper surface of the pressure film body 29 located on the peripheral upper surface 13 a of the lower board 13 are brought into contact with each other. A vacuum chamber 14 is formed. Then, a vacuum device (not shown) is operated, and the air inside the vacuum chamber 14 formed in the space surrounded by the pressurized film body 18, the pressurized film body 29, and the vacuum chamber forming member 25 through the air flow path 25 b. To be in a vacuum state (strictly, a reduced pressure state). At the same time, air is sucked through the air passages 21 and 32 of the upper board 12 and the lower board 13, and the pressure film bodies 18 and 29 of the upper board 12 and the lower board 13 27 is kept in close contact with each other. Further, since the carrier film F is pressed and held by the lower surface of the vacuum chamber forming member 25 having a predetermined plate thickness, the laminated body C is in a state of being close to the pressure film body 29 on the plate plate 27 of the lower board 13. I keep it. Therefore, even when the laminated body C is pressed toward the pressure film body 29 on the plate plate 27 at the time of pressurization by the pressure film body 18, the carrier film F is not forcibly pulled downward.

  When the inside of the vacuum chamber 14 is in a predetermined vacuum state, as shown in FIG. 2, the air passage 21 of the upper panel 12 is switched to communicate with the atmosphere or compressed air supply device, and the plate plate 16 of the upper panel 12 Air is supplied between the pressurized film bodies 18. Then, the pressurizing film body 18 of the upper board 12 adjacent to the laminate A having a small outer shape is swelled toward the pressurizing film body 29 on the plate plate 27 of the other lower board 13, and the laminate C is lifted from the upper surface. Pressurize. At this time, the air flow path 32 of the lower board 13 is communicated with the vacuum device, and the pressure film body 29 remains in close contact with the plate plate 27. In this way, by pressing the laminate C with the pressurizing film body 18 adjacent to the laminate A having a small outer shape, the entire bottom surface of the laminate B having a large outer shape is on the plate plate 27 of the lower board 13. The pressure film body 29 can be contacted substantially evenly, and the vicinity of the end portion is not cracked.

  When the laminate C is pressurized by the pressurizing film body 18 for a predetermined time, the air flow path 21 of the upper panel 12 is switched to communicate with the vacuum device, and the air flow path 25b of the vacuum chamber forming member 25 is changed. Open to the atmosphere and return the inside of the vacuum chamber 14 to atmospheric pressure. As a result, the pressurized film body 18 is separated from the laminated body C and is in close contact with the plate plate 16. Then, the lower board 13 is lowered to open the vacuum chamber 14, and the laminated body C, which has been laminated and formed by the carrier film F, is carried out of the vacuum laminating apparatus 11 from the carry-out port 23a, and the next laminated body C is removed. It is carried into the vacuum laminating apparatus 11 from the carry-in port 22a.

   In the example shown in FIGS. 3 and 4, the laminate D in a state where the laminate B having a large outer shape is stacked on the upper side and the laminate A having a smaller outer shape is stacked on the lower side is used. This is an example of laminate molding. In this example, the vacuum chamber forming member 25 is held on the lower plate 13 by the cylinder 33 of the lower plate 13, and the laminate D is placed between the vacuum chamber forming member 25 held on the lower plate 13 and the upper plate 12. It is carried into the vacuum laminating apparatus 11 from the carry-in port 22b. In this example, as shown in FIG. 4, the inside of the vacuum chamber 14 is evacuated, and then the pressure film body 29 of the lower board 13 close to the laminate A having a lower outer shape is directed toward the upper board 12. Since the laminate D is swelled and pressurized, the laminate B having a large upper outer shape is not broken. At that time, since the carrier film F is pressed and held by the upper surface of the vacuum chamber forming member 25 having a predetermined plate thickness, the carrier film F is not forcibly pulled upward when the pressure film 29 is pressed. . When the lamination molding is completed, the vacuum chamber 14 is opened, and the laminate D is carried out from the carry-out port 23b in which the vacuum chamber forming member 25 is held by the lower panel 13.

  In the present invention, as described above, the laminate C and the laminate D that can be pressurized only from any one surface are selectively pressurized only from the surface suitable for pressurization, so that one vacuum is formed. The laminating apparatus 11 can efficiently laminate and mold various laminated bodies without causing defective products. The various laminates are detected by detection means such as a CCD camera or a phototube provided in the transport path when they are sent in random order from the previous process for each predetermined lot. Then, a signal is transmitted from the detection means to the vacuum laminating apparatus directly or via a control device such as a PLC to pressurize the laminated body only from the upper surface or only from the lower surface. Further, a signal may be sent from a control device such as a PLC to the vacuum laminating device in accordance with a product number inputted in advance.

  Further, the present invention is not enumerated one by one, but is not limited to the above-described embodiment, and it goes without saying that the present invention can be applied to those modified by a person skilled in the art based on the gist of the present invention. It is. For example, in the present invention, three or more types of laminates may be laminated and formed by one of two vacuum lamination apparatuses, and the number of vacuum lamination apparatuses used in the entire system is not necessarily limited to one. The laminate pressed by the vacuum laminating apparatus may be re-pressurized as it is, or after another laminate is further stacked, by another vacuum laminating apparatus or a flattening press apparatus. In that case, a surface different from the surface pressed by the previous vacuum laminating apparatus may be pressed.

In the vacuum lamination apparatus of this embodiment, it is sectional drawing which shows the state in which the laminated body on which the laminated body with a large external shape was piled down was carried in to the vacuum lamination apparatus. It is sectional drawing which shows the state by which the laminated body carried in in the state of FIG. 1 is pressurized toward the lower board by the pressurization film body provided in the upper board. In the vacuum lamination apparatus of this embodiment, it is sectional drawing which shows the state in which the laminated body on which the laminated body with a large external shape was piled up was carried in to the vacuum lamination apparatus. It is sectional drawing which shows the state by which the laminated body carried in in the state of FIG. 3 is pressurized toward the upper board | substrate by the pressurization film body provided in the lower board | substrate. It is an expanded sectional view showing the state where a layered product was pressed from an improper surface by a pressure film in a vacuum laminating device, and a defective product was generated. It is an expanded sectional view showing the state where a layered product was pressed from an improper surface by a pressure film in a vacuum laminating device, and a defective product was generated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Vacuum laminating apparatus 12 Upper board 12a Peripheral part lower surface 13 Lower board 13a Peripheral part upper surface 14 Vacuum chamber 15,26 Recessed part 16,27 Plate board 17,28 Thermal insulation board 18,29 Pressurized film body 19,30 Bolt 20,31 O Ring 21, 25b, 32 Air flow path 22a, 22b Carry-in port 23a, 23b Carry-out port 24, 33 Cylinder 24a, 33a Rod 24b, 33b Nut 25 Vacuum chamber forming member 25a Through hole A Laminate with small outer shape B Shape of outer shape Large laminate C, D Laminate F Carrier film

Claims (4)

A pressure film body is provided on each of the upper and lower boards facing each other, a vacuum chamber is formed between the upper board and the lower board, and the pressure film body of one board faces the other board. In a vacuum laminating apparatus that pressurizes the laminate by swelling,
Corresponding to various laminates to be pressurized, pressurized film body provided on either one of the upper and lower panels is swelled toward the other panel, and the laminate is selected only from one side A vacuum laminator characterized by pressurizing. Vacuum chamber forming members are disposed at the inlet and outlet of the laminate of the vacuum laminator,
The vacuum laminating apparatus according to claim 1, wherein the vacuum chamber forming member is selectively held on the same side as a pressurizing film body used for pressurizing the laminated body. A pressure film body is provided on each of the upper and lower boards facing each other, a vacuum chamber is formed between the upper board and the lower board, and the pressure film body of one board faces the other board. In the vacuum lamination method of pressurizing the laminate by bulging,
Corresponding to the various laminates to be pressed, the pressurized film body provided on one of the upper and lower panels is swelled toward the other panel, and the laminate is selectively only from one side. A vacuum lamination method characterized by applying pressure.   The laminate is a laminate in which a laminate having a small outer shape and a laminate having a larger outer shape and made of a brittle body such as a glass plate are stacked, and a pressure film adjacent to the laminate having a small outer shape The vacuum laminating method according to claim 3, wherein the body is bulged toward the other board, and the laminate is pressurized only from the side of the laminate having a small outer shape.

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