WO2014188619A1 - Press apparatus, vacuum frame, and press-forming method - Google Patents
Press apparatus, vacuum frame, and press-forming method Download PDFInfo
- Publication number
- WO2014188619A1 WO2014188619A1 PCT/JP2013/081609 JP2013081609W WO2014188619A1 WO 2014188619 A1 WO2014188619 A1 WO 2014188619A1 JP 2013081609 W JP2013081609 W JP 2013081609W WO 2014188619 A1 WO2014188619 A1 WO 2014188619A1
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- Prior art keywords
- diaphragm
- chamber
- workpiece
- space
- heating
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 119
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 5
- 238000010030 laminating Methods 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 29
- 238000000465 moulding Methods 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 3
- 230000005855 radiation Effects 0.000 claims 2
- 239000000470 constituent Substances 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 17
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B37/1009—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using vacuum and fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B7/00—Presses characterised by a particular arrangement of the pressing members
- B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Definitions
- the present invention relates to a press apparatus, a vacuum frame, and a press molding method used for laminating laminated products.
- a hot press apparatus (hereinafter referred to as “laminate apparatus”) using a diaphragm (elastic film) for laminating laminated products such as solar cell panels is known.
- laminate apparatus using a diaphragm (elastic film) for laminating laminated products such as solar cell panels is known.
- a vacuum chamber is formed between a hot platen and a diaphragm. By evacuating the inside of the vacuum chamber, the work piece placed on the hot platen is pressurized between the hot platen and the diaphragm, and laminating is performed.
- the above conventional laminating apparatus presses a work piece between a flat upper surface of a hot platen and a diaphragm, and therefore cannot be pressed with a uniform pressure unless the work piece is flat on at least one side. Proper lamination could not be performed.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a laminating apparatus capable of laminating a workpiece whose both surfaces are non-flat surfaces.
- An upper diaphragm which is an elastic membrane that partitions the upper space and the main chamber vertically;
- a lower diaphragm which is an elastic film that is disposed opposite to the upper diaphragm and divides the main chamber and the lower space vertically.
- a pressure control device for controlling a pressure difference between the main chamber and the upper space and the lower space;
- a heating device for heating a workpiece disposed in the main chamber;
- the atmospheric pressure control device is A press process for pressing the workpiece heated between the upper diaphragm and the lower diaphragm by lowering the pressure in the main chamber below the pressure in the upper space and the lower space;
- a curing process in which the pressure in the main chamber is made larger than the pressure in the lower space, and the workpiece is heated in a non-vacuum;
- a press apparatus configured to perform the above is provided.
- An upper chamber whose upper surface is closed by an upper diaphragm, which is an elastic membrane, and a lower chamber, whose upper surface is closed by a lower diaphragm, which is an elastic membrane, is sandwiched vertically to form an airtight main chamber, and the main chamber
- the workpiece placed in the main chamber is pressed between the upper diaphragm and the lower diaphragm by lowering the pressure of the upper chamber and the lower chamber.
- the main chamber has a vent for supplying and discharging air, and the vent is An annular portion extending in the extending direction of the vacuum frame; A first portion extending from the annular portion and opening in the outer peripheral surface of the vacuum frame; A second portion extending from the annular portion and opening in the inner peripheral surface of the vacuum frame; A vacuum frame is provided.
- a workpiece is disposed in a main chamber that is airtightly partitioned from an upper space and a lower space by an upper diaphragm and a lower diaphragm, which are a pair of elastic films disposed vertically opposite to each other, While heating the workpiece, the pressure in the main chamber is made lower than the pressure in the upper space and the lower space, and the workpiece heated between the upper diaphragm and the lower diaphragm is heated. Press processing to press, There is provided a press molding method for performing a curing process in which the pressure in the main chamber is made larger than the pressure in the lower space and the workpiece is heated in a non-vacuum state.
- FIG. 1 is a front perspective view of a laminating apparatus according to the first embodiment of the present invention.
- FIG. 2 is an AA arrow view of FIG.
- FIG. 3 is a diagram illustrating the configuration of the vacuum frame.
- FIG. 4 is a view for explaining the procedure of laminating according to the first embodiment of the present invention.
- FIG. 5 is a front perspective view of a laminating apparatus according to the second embodiment of the present invention.
- FIG. 1 is a front perspective view of a laminating apparatus 1 according to the first embodiment of the present invention
- FIG. 2 is a view taken in the direction of arrows AA in FIG.
- the laminating apparatus 1 includes a main body 1a, a control unit 2, an atmospheric pressure control device 3, and a hydraulic pressure control device 4.
- the main body 1 a, the atmospheric pressure control device 3, and the hydraulic pressure control device 4 are each connected to the control unit 2 and operate under the control of the control unit 2.
- the main body 1 a includes an outer chamber 10, an upper heating plate 20, a lower heating plate 40, and a hydraulic cylinder 50 arranged in the outer chamber 10.
- the external chamber 10 is connected to the atmospheric pressure control device 3 via the external chamber supply / exhaust pipe line 3a, and the internal pressure of the external chamber 10 is changed from a vacuum (for example, about 0.1 kPa) to an atmospheric pressure or more (for example, several) by the atmospheric pressure control device 3. (Atmospheric pressure).
- the hydraulic cylinder 50 (drive device) is connected to the hydraulic control device 4 and operates according to the supply and discharge of hydraulic oil by the hydraulic control device 4.
- the cylinder tube 51 of the hydraulic cylinder 50 is fixed to the frame of the external chamber 10.
- the upper heating plate 20 is fixed to the frame of the external chamber 10 with the lower surface horizontal. Further, the lower heating plate 40 is arranged so that the upper surface thereof faces the lower surface of the upper heating plate 20.
- the lower heating plate 40 is fixed to the ram 52 of the hydraulic cylinder 50 on the lower surface, and moves up and down together with the ram 52 in accordance with the supply and discharge of hydraulic oil to and from the hydraulic cylinder 50.
- the upper heating plate 20 and the lower heating plate 40 are provided with an electric heater (not shown) and a temperature sensor (not shown), respectively, and the temperature of the upper heating plate 20 and the lower heating plate 40 is controlled by the control unit 2. Be controlled. Further, on the lower surface of the upper heating platen 20 and the upper surface of the lower heating platen 40, for example, far-infrared rays that generate high-efficiency far-infrared rays with strong absorption by the resin contained in the workpiece W using thermal energy. A layer (for example, a film or a plate) of the radiating material is provided so that the workpiece W can be efficiently heated. That is, the upper heating platen 20 and the lower heating platen 40 function as a heating device that heats the workpiece W.
- the upper chamber unit 20U is attached to the lower surface of the upper heating platen 20.
- the upper chamber unit 20U includes an upper diaphragm fixing frame 21U, an upper diaphragm 22U, and an upper diaphragm protection plate 23U.
- the upper diaphragm fixing frame 21U is a substantially cylindrical member disposed with its central axis oriented in the vertical direction, and its upper end is joined in a state of being in airtight contact with the lower surface of the upper heating platen 20. For this joining, various methods such as welding, adhesion, and pressure welding via a sealing material can be used.
- the upper diaphragm fixing frame 21U has a tapered surface with a frustoconical side surface so that its thickness increases as it approaches the upper heating platen 20.
- the hollow portion of the upper diaphragm fixing frame 21U is airtightly closed at the lower end by the upper diaphragm 22U.
- an upper chamber 24U that is airtightly surrounded by the upper heating platen 20, the upper diaphragm fixing frame 21U, and the upper diaphragm 22U is formed. Further, since the upper heating plate 20 of the present embodiment is provided with a vent hole 20a that communicates the lower surface and the side surface thereof (that is, communicates the upper chamber 24U and the external chamber 10), The internal pressure of the external chamber 10 is approximately the same.
- the hollow portion (upper chamber 24U) of the upper diaphragm fixing frame 21U is partitioned by an upper diaphragm protection plate 23U, which is a flat plate arranged in parallel with the lower surface of the upper diaphragm fixing frame 21U (that is, with the upper diaphragm 22U).
- an upper diaphragm protection plate 23U a plate material having air permeability, such as a punching plate or a porous plate, is used in order to prevent a pressure difference between the spaces on both sides thereof.
- the lower chamber unit 40L configured in the same manner as the upper chamber unit 20U is attached upside down with respect to the upper chamber unit 20U. That is, the lower chamber unit 40L includes a lower diaphragm fixing frame 41L joined in a state where the lower end is in airtight contact with the upper surface of the lower heating plate 40, and a lower diaphragm fixing so as to airtightly close a hollow portion of the lower diaphragm fixing frame 41L.
- a lower diaphragm 42L attached to the upper end of the frame 41L, and a lower diaphragm molding plate 43L attached to the inner peripheral surface of the lower diaphragm fixing frame 41L so as to partition the hollow portion vertically.
- the lower heating plate 40 is provided with a vent hole 40a that communicates the upper surface and the side surface thereof.
- One port of a three-port solenoid valve 47 is connected to one end of the vent hole 40a.
- Another port of the three-port solenoid valve 47 is connected to the atmospheric pressure control device 3 via the lower chamber supply / exhaust pipe 3c, and the remaining one port is opened in the external chamber 10.
- the 3-port solenoid valve 47 is controlled by the control unit 2 and is in a state in which the lower chamber 44L and the external chamber 10 are connected (open state) and in a state in which the lower chamber 44L and the atmospheric pressure control device 3 are connected (pressure control state). And switch.
- annular vacuum frame 60 having substantially the same outer diameter as the lower diaphragm fixing frame 41L is airtightly attached to the upper surface of the lower chamber unit 40L.
- FIG. 3A is an enlarged plan view of a part of the vacuum frame 60
- FIG. 3B is a view taken along the line BB in FIG. 3A.
- a tapered surface (or curved surface) 60a is formed so that it is not bent or deteriorated with a small radius of curvature.
- the vacuum frame 60 includes an annular upper member 62, a lower member 64, and an O-ring 66, respectively.
- the upper member 62 and the lower member 64 are stacked one above the other, and the joint is hermetically sealed by an O-ring 66.
- an annular hollow portion 60b annular portion extending in the extending direction over the entire circumference is formed.
- the upper member 62 and the lower member 64 are closely opposed to each other, and a ventilation slit 60c that connects the hollow portion 60b and the main chamber 26 is formed therebetween.
- the ventilation slit 60 c is a slit-shaped ventilation path that extends over the entire circumference of the vacuum frame 60 and opens on the inner peripheral surface of the vacuum frame 60.
- a vent hole 60d that connects the hollow portion 60b and the external chamber 10 is formed.
- the vent hole 60d is enlarged in diameter on one end side (the outer peripheral surface side of the vacuum frame 60) to form a taper screw 60e.
- a main chamber supply / exhaust line 3b (FIG. 1) from the atmospheric pressure control device 3 is connected to the taper screw 60e, and air (air or dry nitrogen or the like) enters the main chamber 26 through the vacuum frame 60 by the atmospheric pressure control device 3. Inert gas) can be supplied and discharged.
- the ventilation slit 60c has a constant cross-sectional dimension over the entire circumference so that the pressure loss when supplying and discharging air to the main chamber 26 through the ventilation slit 60c is substantially uniform over the entire circumference.
- the supply and discharge of air into the main chamber 26 is performed through a hollow portion 60b having a large cross-sectional area and a small pressure loss, and a ventilation slit 60c having a small cross-sectional area and a large pressure loss. Therefore, the supply and discharge of air to and from the main chamber 26 is performed substantially uniformly and gently from the entire circumference of the ventilation slit 60c.
- the hydraulic cylinder 50 (FIG. 1) is driven to raise the lower heating platen 40 so that the upper chamber unit 20U and the vacuum frame 60 are brought into close contact with each other. Form.
- the outer chamber 10 (FIG. 1), the upper chamber 24U, the main chamber 26, and the lower chamber 44L are all in a vacuum.
- the workpiece W is sandwiched between the upper diaphragm 22U and the lower diaphragm 42L, and pressed by the pressure difference between the upper chamber 24U, the lower chamber 44L, and the main chamber 26. Is done. Then, if this state is maintained for a predetermined time, the workpiece W is processed by the radiant heat from the upper heating plate 20 and the lower heating plate 40 (when the thermosetting resin is used, the curing temperature of the resin, the thermoplastic resin is used). If the resin is heated to a temperature equal to or higher than the glass transition point of the resin, the resin contained in the workpiece W (for example, a thermosetting resin such as an epoxy resin or an ethylene vinyl acetate copolymer resin (EVA)) is used. The thermoplastic resin) is softened (and further cured in the case of a thermosetting resin), and the members constituting the workpiece W are joined together.
- a thermosetting resin such as an epoxy resin or an ethylene vinyl acetate copolymer resin (EVA)
- the main chamber 26 When gas is generated from the workpiece W during the pressing process, the main chamber 26 is pressed during the pressing process by the atmospheric pressure control device 3 via the main chamber supply / exhaust pipe line 3b connected to the vacuum frame 60. Can be evacuated. As a result, the gas generated from the workpiece W during the press process can be forcibly discharged from the main chamber 26, and the bonding failure of the workpiece W and the deterioration of the diaphragm due to the generation of the gas can be prevented. it can.
- the curing process is a process of stabilizing the workpiece W by keeping the workpiece W after bonding at the curing temperature of the resin (in the case of a thermoplastic resin, a temperature equal to or higher than the glass transition point).
- the curing step is performed under non-vacuum (that is, in air or inert gas).
- non-vacuum that is, in air or inert gas
- 0.1 atmosphere or more is referred to as non-vacuum.
- compressed air having a pressure P1 higher than the atmospheric pressure is introduced into the main chamber 26 by the atmospheric pressure control device 3 (FIG. 1).
- the three-port solenoid valve 47 is switched to a state (pressure control state) in which the lower chamber 44L and the atmospheric pressure control device 3 are connected, and the lower chamber 44L is brought into the lower pressure P1 by the atmospheric pressure control device 3. Air having a pressure P2 is introduced into the main chamber 26.
- the upper diaphragm 22U expands greatly toward the upper chamber 24U, and comes into close contact with the upper diaphragm protection plate 23U and becomes flat.
- the upper diaphragm protection plate 23U prevents the upper diaphragm 22U from coming into contact with the upper heating plate 20 heated to a high temperature and being deteriorated or thermally damaged.
- the upper diaphragm protection plate 23U is disposed in parallel and close to the lower surface of the upper heating platen 20, when the upper diaphragm 22U is in close contact with the upper diaphragm protection plate 23U, it is uniform due to the radiant heat from the upper heating platen 20. And it is efficiently heated to an appropriate temperature.
- the upper diaphragm protection plate 23U can be preheated by holding the upper diaphragm protection plate 23U in close contact with the upper diaphragm protection plate 23U before press molding.
- the lower diaphragm molding plate 43L has the same function and effect as the above-described upper diaphragm protection plate 23U.
- the lower diaphragm 42L does not contact the lower diaphragm molding plate 43L, and the lower diaphragm 42L side according to the internal pressure difference. Inflates.
- an internal pressure difference that causes the lower diaphragm 42L to bend along the lower surface of the workpiece W in a state where the workpiece W is placed on the lower diaphragm 42L is obtained in advance by calculation or experimentally.
- the atmospheric pressure control device 3 controls the internal pressure P2 of the lower chamber 44L so that the obtained internal pressure difference is applied to the lower diaphragm 42L.
- the workpiece W is supported at a substantially uniform pressure by the lower diaphragm 42L expanded at the same curvature, so that the entire surface of the workpiece W can be cured with less distortion applied to the workpiece W. Done. As a result, a highly reliable product (workpiece W) with little residual stress is obtained.
- the three-port solenoid valve 47 is switched so that the lower chamber 44L is opened to the external chamber 10 (open state).
- the lower diaphragm 42L greatly expands toward the lower chamber 44L and comes into close contact with the lower diaphragm molding plate 43L and becomes flat.
- the workpiece W is supported by the flat lower diaphragm 42L at a uniform pressure, so that the curing process is performed with little distortion, and as a result, there is little residual stress and a highly reliable product ( A workpiece W) is obtained.
- FIG. 5 is a front perspective view of the laminating apparatus 100.
- the same or similar reference numerals are used for the same or similar components as those in the first embodiment, and the description of overlapping items is omitted.
- the first embodiment described above is an example in which the present invention is applied to a single-stage laminating apparatus, but the second embodiment is one or more intermediate hot plates 130 between the upper hot platen 120 and the lower hot platen 140.
- This is an example in which the present invention is applied to a multi-stage laminating apparatus provided with.
- the laminating apparatus 100 according to the present embodiment includes one intermediate heating platen 130, but has a configuration in which two or more intermediate heating plates 130 are arranged side by side between the upper heating platen 120 and the lower heating platen 140. You can also
- a lower chamber unit 130L and an upper chamber unit 130U are respectively attached to the upper surface and the lower surface of the intermediate heating platen 130.
- the upper chamber unit 130U is the same as the upper chamber unit 120U (corresponding to the upper chamber unit 20U in the first embodiment) attached to the lower surface of the upper heating platen 120, and the lower chamber unit 130L is disposed on the upper surface of the lower heating platen 140. This is the same as the attached lower chamber unit 140L (corresponding to the lower chamber unit 40L in the first embodiment).
- each chamber unit (upper chamber units 120U, 130U, lower chamber units 130L, 140L) is directly connected to the atmospheric pressure control device 103, and the atmospheric pressure control device 103 is connected. Is used to individually control the internal pressure of each chamber unit.
- the time required for evacuation is greatly reduced, and the entire process time can be shortened.
- the vacuum frames 60A and 60B are attached to the upper chamber units 20U and 30U, the upper surfaces of the lower chamber units 130L and 140L on which the workpiece W is placed become completely flat, and the laminating apparatus 100 It is possible to easily carry in / out the workpiece W to / from.
- a pair of receiving plates 120b and 130b protruding from the left and right side surfaces are attached to the upper heating plate 120 and the intermediate heating plate 130 of the laminating apparatus 100, respectively.
- the frame 110 of the laminating apparatus 100 is attached with two pairs of hot platen support mechanisms 112 (only a pair on the front side is shown) arranged to face each other in the width direction (left-right direction in FIG. 5). ing.
- the hot platen support mechanism 112 carries the unprocessed workpiece W into the laminating apparatus 100 or the unprocessed workpiece (product) W from the laminating apparatus 100 when the upper and lower chamber units are spaced apart. This is a mechanism for holding the hot platen immediately above the workpiece W to be conveyed at a predetermined height.
- the hot platen support mechanism 112 includes a movable pin 112a that can reciprocate in the width direction.
- the hot platen support mechanism 112 is connected to the control unit 102, and the drive of the movable pin 112 a is controlled by the control unit 102.
- the movable pin 112a When the movable pin 112a is retracted (moved outward in the width direction of the main body 100a), the hot plate support mechanism 112 does not disturb the vertical movement of the upper heat plate 120 and the intermediate heat plate 130, and the movable pin 112a protrudes (the main body 100a In this state, the plate is disposed so as to contact the receiving plate 120b of the upper heating plate 120 or the receiving plate 130b of the intermediate heating plate 130.
- each hot platen support mechanism 112 is retracted, the intermediate hot platen 130 is placed on the lower hot platen 140, and the upper hot platen 120 is placed on the intermediate hot platen 130. Will be placed.
- the hydraulic cylinder 150 is driven to move the lower heating plate 140 up and down, the intermediate heating plate 130 and the upper heating plate 120 stacked on the lower heating plate 140 move up and down together with the lower heating plate 140.
- the position of the receiving plate 120b of the upper heating platen 120 is slightly smaller than the movable pin 112a of each heating platen support mechanism 112.
- the hydraulic cylinder 150 is driven to raise the lower heating platen 140 until it becomes higher.
- the movable pin 112a of each hot platen support mechanism 112 is projected to the upper hot platen 120 side.
- the upper heating platen 120 is placed on the intermediate heating platen 130, and the receiving plate 120b is connected to each of the receiving plate 120b.
- the hydraulic cylinder 150 is driven to raise the lower heat platen 140 until it slightly floats from the movable pin 112a of the heat plate support mechanism 112.
- the hydraulic cylinder 150 is moved until the position of the receiving plate 130b of the intermediate hot platen 130 is slightly higher than the movable pin 112a of each hot platen support mechanism 112. Driven to raise the lower heating platen 140.
- each hot platen support mechanism 112 is protruded to the intermediate hot platen 130 side and the hydraulic cylinder 150 is driven to lower the lower hot platen 140
- the receiving plate 130b of the intermediate hot platen 130 is moved.
- the lower surface abuts on the movable pin 112a of each hot platen support mechanism 112, and the intermediate hot platen 130 is placed on the two pairs of movable pins 112a.
- the intermediate heat platen 130 is supported by the two pairs of movable pins 112a and is not lowered any further, so that the lower heat platen 140 is separated from the intermediate heat platen 130.
- the hydraulic cylinder 150 is stopped.
- the intermediate heating platen 130 is placed on the lower heating platen 140, and the receiving plate 130b of the intermediate heating platen 130 is moved from the movable pin 112a of each heating plate support mechanism 112.
- the hydraulic cylinder 150 is driven to raise the lower heat platen 140 until it slightly floats, and then the movable pin 112a of each heat plate support mechanism 112 is retracted.
- an electric heater is used for heating the hot platen, but the heating plate may be heated using other heating means.
- a configuration in which the heating plate is uniformly heated by flowing a heat medium such as silicone oil through a flow path provided in the heating plate can be employed. .
- an upper (lower) diaphragm fixing frame and a vacuum frame formed in a cylindrical shape are used.
- the present invention is not limited to this configuration, and other shapes (for example, It is also possible to use an upper (lower) diaphragm fixing frame or a vacuum frame of a polygonal tube shape.
- a flat plate-shaped lower diaphragm molding plate is used, but a lower diaphragm molding plate having the same shape as the lower surface of the workpiece W can also be used.
- the inner pressure of the main chamber is made sufficiently higher than the inner pressure of the lower chamber, and the lower diaphragm is brought into close contact with the lower diaphragm molding plate, so that the lower diaphragm has the same shape as the lower surface of the workpiece W. Can be molded.
Abstract
Description
上部空間と主チャンバーとを上下に仕切る弾性膜である上部ダイヤフラムと、
前記上部ダイヤフラムと対向して配置され、前記主チャンバーと下部空間とを上下に仕切る弾性膜である下部ダイヤフラムと、
前記主チャンバー内と、前記上部空間及び前記下部空間との気圧差を制御する気圧制御装置と、
前記主チャンバー内に配置される被加工物を加熱する加熱装置と、
を備え、
前記気圧制御装置が、
前記主チャンバー内の気圧を前記上部空間及び前記下部空間の気圧よりも低くして、前記上部ダイヤフラムと前記下部ダイヤフラムとの間で加熱された前記被加工物をプレスするプレス処理と、
前記主チャンバー内の気圧を前記下部空間の気圧より大きくして、前記被加工物を非真空下で加熱するキュア処理と、
を行うように構成されたプレス装置が提供される。 According to one embodiment of the present invention,
An upper diaphragm, which is an elastic membrane that partitions the upper space and the main chamber vertically;
A lower diaphragm, which is an elastic film that is disposed opposite to the upper diaphragm and divides the main chamber and the lower space vertically.
A pressure control device for controlling a pressure difference between the main chamber and the upper space and the lower space;
A heating device for heating a workpiece disposed in the main chamber;
With
The atmospheric pressure control device is
A press process for pressing the workpiece heated between the upper diaphragm and the lower diaphragm by lowering the pressure in the main chamber below the pressure in the upper space and the lower space;
A curing process in which the pressure in the main chamber is made larger than the pressure in the lower space, and the workpiece is heated in a non-vacuum;
A press apparatus configured to perform the above is provided.
弾性膜である上部ダイヤフラムによって下面が塞がれた上部チャンバーと、弾性膜である下部ダイヤフラムによって上面が塞がれた下部チャンバーとで上下に挟み込まれて気密な主チャンバーを形成し、前記主チャンバーの気圧を前記上部チャンバー及び前記下部チャンバーの気圧よりも低くすることによって、前記主チャンバー内に配置された被加工物が前記上部ダイヤフラムと前記下部ダイヤフラムとの間でプレスされるように構成された環状の真空枠であって、
前記主チャンバーにエアを給排する通気孔を有し、該通気孔が、
前記真空枠の延長方向に延びる環状部と、
前記環状部から延びて前記真空枠の外周面に開口する第1部と、
前記環状部から延びて前記真空枠の内周面に開口する第2部と、
を有する真空枠が提供される。 According to one embodiment of the present invention,
An upper chamber whose upper surface is closed by an upper diaphragm, which is an elastic membrane, and a lower chamber, whose upper surface is closed by a lower diaphragm, which is an elastic membrane, is sandwiched vertically to form an airtight main chamber, and the main chamber The workpiece placed in the main chamber is pressed between the upper diaphragm and the lower diaphragm by lowering the pressure of the upper chamber and the lower chamber. An annular vacuum frame,
The main chamber has a vent for supplying and discharging air, and the vent is
An annular portion extending in the extending direction of the vacuum frame;
A first portion extending from the annular portion and opening in the outer peripheral surface of the vacuum frame;
A second portion extending from the annular portion and opening in the inner peripheral surface of the vacuum frame;
A vacuum frame is provided.
上下に対向して配置された一対の弾性膜である上部ダイヤフラム及び下部ダイヤフラムによって上部空間及び下部空間とそれぞれ気密に仕切られた主チャンバー内に被加工物を配置し、
前記被加工物を加熱しながら、前記主チャンバー内の気圧を前記上部空間及び前記下部空間の気圧よりも低くして、前記上部ダイヤフラムと前記下部ダイヤフラムとの間で加熱された前記被加工物をプレスするプレス処理を行い、
前記主チャンバー内の気圧を前記下部空間の気圧より大きくして、前記被加工物を非真空下で加熱するキュア処理を行うプレス成形方法が提供される。 According to one embodiment of the present invention,
A workpiece is disposed in a main chamber that is airtightly partitioned from an upper space and a lower space by an upper diaphragm and a lower diaphragm, which are a pair of elastic films disposed vertically opposite to each other,
While heating the workpiece, the pressure in the main chamber is made lower than the pressure in the upper space and the lower space, and the workpiece heated between the upper diaphragm and the lower diaphragm is heated. Press processing to press,
There is provided a press molding method for performing a curing process in which the pressure in the main chamber is made larger than the pressure in the lower space and the workpiece is heated in a non-vacuum state.
図1は本発明の第1実施形態に係るラミネート装置1の正面透視図であり、図2は図1のA-A矢視図である。ラミネート装置1は、本体1a、制御部2、気圧制御装置3及び油圧制御装置4を備えている。本体1a、気圧制御装置3及び油圧制御装置4は、それぞれ制御部2に接続されており、制御部2の制御下で動作する。 (First embodiment)
FIG. 1 is a front perspective view of a
次に、本発明の第2実施形態に係るラミネート装置100について説明する。図5は、ラミネート装置100の正面透視図である。なお、以下の説明においては、上記の第1実施形態と同一又は類似の構成要素に対して同一又は類似の符号を用い、重複する事項について説明を省略する。 (Second Embodiment)
Next, the
2、102…制御部
3、103…気圧制御装置
4、104…油圧制御装置
20、120…上部熱盤
30、130…中間熱盤
40、140…下部熱盤
50…油圧シリンダ
W…被加工物(積層体) DESCRIPTION OF SYMBOLS 1,100 ... Laminating apparatus 2,102 ... Control part 3,103 ... Atmospheric pressure control apparatus 4,104 ... Hydraulic control apparatus 20,120 ... Upper hot platen 30,130 ... Intermediate hot platen 40,140 ... Lower
Claims (34)
- 上部空間と主チャンバーとを上下に仕切る弾性膜である上部ダイヤフラムと、
前記上部ダイヤフラムと対向して配置され、前記主チャンバーと下部空間とを上下に仕切る弾性膜である下部ダイヤフラムと、
前記主チャンバー内と、前記上部空間及び前記下部空間との気圧差を制御する気圧制御装置と、
前記主チャンバー内に配置される被加工物を加熱する加熱装置と、
を備え、
前記気圧制御装置が、
前記主チャンバー内の気圧を前記上部空間及び前記下部空間の気圧よりも低くして、前記上部ダイヤフラムと前記下部ダイヤフラムとの間で加熱された前記被加工物をプレスするプレス処理と、
前記主チャンバー内の気圧を前記下部空間の気圧より大きくして、前記被加工物を非真空下で加熱するキュア処理と、
を行うように構成されたプレス装置。 An upper diaphragm, which is an elastic membrane that partitions the upper space and the main chamber vertically;
A lower diaphragm, which is an elastic film that is disposed opposite to the upper diaphragm and divides the main chamber and the lower space vertically.
A pressure control device for controlling a pressure difference between the main chamber and the upper space and the lower space;
A heating device for heating a workpiece disposed in the main chamber;
With
The atmospheric pressure control device is
A press process for pressing the workpiece heated between the upper diaphragm and the lower diaphragm by lowering the pressure in the main chamber below the pressure in the upper space and the lower space;
A curing process in which the pressure in the main chamber is made larger than the pressure in the lower space, and the workpiece is heated in a non-vacuum;
A press device configured to perform - 前記気圧制御装置が、前記被加工物の下面が湾曲した凸面である場合に、前記キュア処理において、前記下部ダイヤフラムが前記被加工物の下面に沿って湾曲して前記被加工物を略均一な圧力で支持するように、前記主チャンバー内と前記下部空間との気圧差を制御するように構成された、
ことを特徴とする請求項1に記載のプレス装置。 When the atmospheric pressure control device is a convex surface where the lower surface of the workpiece is curved, in the curing process, the lower diaphragm is curved along the lower surface of the workpiece so that the workpiece is substantially uniform. Configured to control the pressure difference between the main chamber and the lower space so as to support with pressure,
The press apparatus according to claim 1. - 前記下部空間内に前記ダイヤフラムと対向する平坦な上面を有するダイヤフラム成形板を備え、
前記気圧制御装置が、前記被加工物の下面が平坦面である場合に、前記キュア処理において、前記下部ダイヤフラムが前記ダイヤフラム成形板に密着して平坦に成形されて前記被加工物を略均一な圧力で支持するように、前記主チャンバー内と前記下部空間との気圧差を制御する、
ことを特徴とする請求項1に記載のプレス装置。 A diaphragm molding plate having a flat upper surface facing the diaphragm in the lower space;
When the lower surface of the workpiece is a flat surface, the pressure control device is configured so that, in the curing process, the lower diaphragm is in close contact with the diaphragm forming plate and is formed flat to make the workpiece substantially uniform. Control the pressure difference between the main chamber and the lower space so as to support with pressure,
The press apparatus according to claim 1. - 前記上部ダイヤフラムを下面に備え、前記上部空間を気密に囲う上部チャンバーユニットと、
前記下部ダイヤフラムを上面に備え、前記下部空間を気密に囲う下部チャンバーユニットと、
前記上部チャンバーユニットと前記下部チャンバーユニットの間に配置され、上下に貫通する中空部を有する真空枠と、
前記上部チャンバーユニット及び前記下部チャンバーユニットの少なくとも一方を上下に駆動する駆動装置と、
を備え、
前記駆動装置の駆動により前記上部チャンバーユニットと前記下部チャンバーユニットとで前記真空枠を挟み込むことによって前記主チャンバーが形成される、
ことを特徴とする請求項1から請求項3のいずれか一項に記載のプレス装置。 An upper chamber unit that includes the upper diaphragm on a lower surface and hermetically surrounds the upper space;
A lower chamber unit that includes the lower diaphragm on an upper surface and hermetically surrounds the lower space;
A vacuum frame disposed between the upper chamber unit and the lower chamber unit and having a hollow portion penetrating vertically;
A driving device for driving up and down at least one of the upper chamber unit and the lower chamber unit;
With
The main chamber is formed by sandwiching the vacuum frame between the upper chamber unit and the lower chamber unit by driving the driving device.
The press apparatus according to any one of claims 1 to 3, wherein: - 前記加熱装置が、
前記上部チャンバーユニットが下面に固定された上部熱盤と、
前記上部熱盤を加熱する上部熱盤加熱手段と、
前記下部チャンバーユニットが上面に固定された下部熱盤と、
前記下部熱盤を加熱する下部熱盤加熱手段と、
を備え、
前記上部熱盤の下面及び前記下部熱盤の上面に遠赤外線放射材料の層が設けられている、
ことを特徴とする請求項4に記載のプレス装置。 The heating device is
An upper heating plate in which the upper chamber unit is fixed to the lower surface;
Upper heating platen heating means for heating the upper heating platen;
A lower heating plate in which the lower chamber unit is fixed to the upper surface;
A lower heating plate heating means for heating the lower heating plate;
With
A layer of far infrared radiation material is provided on the lower surface of the upper heat plate and the upper surface of the lower heat plate,
The press apparatus according to claim 4. - 前記上部チャンバーユニット及び前記下部チャンバーユニットが、それぞれ上下に貫通する中空部を有するダイヤフラム固定枠を備え、
前記ダイヤフラム固定枠の各々は、上下方向における一端面が前記上部熱盤の下面又は前記下部熱盤の上面に密着固定され、上下方向における他端面に形成された前記中空部の開口が前記上部ダイヤフラム又は前記下部ダイヤフラムによって気密に塞がれている、
ことを特徴とする請求項5に記載のプレス装置。 The upper chamber unit and the lower chamber unit each include a diaphragm fixing frame having a hollow portion penetrating vertically.
Each of the diaphragm fixing frames has one end surface in the up-down direction closely fixed to the lower surface of the upper heat plate or the upper surface of the lower heat plate, and the opening of the hollow portion formed in the other end surface in the up-down direction is the upper diaphragm Or is hermetically closed by the lower diaphragm,
The press apparatus according to claim 5. - 前記上部熱盤には、前記上部空間にエアを給排する第1通気孔が形成されていて、
前記下部熱盤には、前記下部空間にエアを給排する第2通気孔が形成されている、
ことを特徴とする請求項5又は請求項6に記載のプレス装置。 The upper heat plate is formed with a first vent hole for supplying and discharging air to the upper space,
The lower heat plate is formed with a second ventilation hole for supplying and discharging air to the lower space.
The press apparatus according to claim 5 or 6, characterized by the above. - 前記第1通気孔が前記上部熱盤の下面と側面とを連絡し、
前記第2通気孔が前記下部熱盤の上面と側面とを連絡する、
ことを特徴とする請求項7に記載のプレス装置。 The first vent communicates a lower surface and a side surface of the upper heating plate;
The second vent communicates an upper surface and a side surface of the lower heating plate;
The press apparatus according to claim 7. - 前記上部熱盤、前記上部チャンバーユニット、前記真空枠、前記下部チャンバーユニット及び前記下部熱盤を収容し、前記気圧制御装置に接続された外部チャンバーを備え、
前記第1通気孔及び前記第2通気孔が前記外部チャンバーに開放されていて、
前記外部チャンバーの気圧を制御することによって、前記上部空間及び前記下部空間の気圧が制御されるように構成されている、
ことを特徴とする請求項7又は請求項8に記載のプレス装置。 The upper heating platen, the upper chamber unit, the vacuum frame, the lower chamber unit and the lower heating plate are accommodated, and includes an external chamber connected to the atmospheric pressure control device,
The first vent hole and the second vent hole are open to the external chamber;
By controlling the pressure of the external chamber, the pressure of the upper space and the lower space is controlled.
The press apparatus according to claim 7 or 8, wherein - 前記上部熱盤、前記上部チャンバーユニット、前記真空枠、前記下部チャンバーユニット及び前記下部熱盤を収容し、前記気圧制御装置に接続された外部チャンバーと、
3ポート切換弁と、を備え、
前記3ポート切換弁の第1ポートが前記第2通気孔に接続されていて、
前記3ポート切換弁の第2ポートが前記外部チャンバーに開放されていて、
前記3ポート切換弁の第3ポートが前記気圧制御装置に接続されていて、
前記第1ポートと前記第2ポートとが接続されるように前記3ポート切換弁が切り換えられたときに、前記外部チャンバーの気圧を制御することによって、前記下部空間の気圧が制御され、
前記第1ポートと前記第3ポートとが接続されるように前記3ポート切換弁が切り換えられたときに、前記下部空間の気圧が前記気圧制御装置によって直接制御される、
ことを特徴とする請求項7又は請求項8に記載のプレス装置。 An outer chamber connected to the atmospheric pressure control apparatus, containing the upper heating plate, the upper chamber unit, the vacuum frame, the lower chamber unit and the lower heating plate;
A three-port switching valve,
A first port of the three-port switching valve is connected to the second vent hole;
A second port of the three-port switching valve is opened to the external chamber;
A third port of the three-port switching valve is connected to the atmospheric pressure control device;
When the three-port switching valve is switched so that the first port and the second port are connected, the atmospheric pressure of the lower space is controlled by controlling the atmospheric pressure of the external chamber,
When the three-port switching valve is switched so that the first port and the third port are connected, the atmospheric pressure in the lower space is directly controlled by the atmospheric pressure control device.
The press apparatus according to claim 7 or 8, wherein - 前記第1通気孔及び前記第2通気孔の少なくとも一方が前記気圧制御装置に接続されている、
ことを特徴とする請求項7又は請求項8に記載のプレス装置。 At least one of the first vent hole and the second vent hole is connected to the atmospheric pressure control device;
The press apparatus according to claim 7 or 8, wherein - 前記加熱装置が、
前記上部チャンバーユニットが下面に固定されるとともに、前記下部チャンバーユニットが上面に固定され、前記上部熱盤と前記下部熱盤との間に配置された一つ以上の中間熱盤と、
前記一つ以上の中間熱盤をそれぞれ加熱する一つ以上の中間熱盤加熱手段と、
を備え、
前記中間熱盤の上面及び下面に遠赤外線放射材料の層が設けられている、
ことを特徴とする請求項5から請求項11のいずれか一項に記載のプレス装置。 The heating device is
The upper chamber unit is fixed to the lower surface, the lower chamber unit is fixed to the upper surface, and one or more intermediate heating plates disposed between the upper heating plate and the lower heating plate;
One or more intermediate heating plate heating means for respectively heating the one or more intermediate heating plates;
With
A layer of far-infrared radiation material is provided on the upper and lower surfaces of the intermediate heating platen,
The press apparatus according to any one of claims 5 to 11, wherein the press apparatus is characterized in that: - 前記中間熱盤には、
前記上部チャンバーにエアを給排する第1通気孔と、
前記下部チャンバーにエアを給排する第2通気孔と、が形成されている、
ことを特徴とする請求項12に記載のプレス装置。 In the intermediate heating plate,
A first vent for supplying and discharging air to the upper chamber;
A second vent hole for supplying and discharging air to the lower chamber is formed,
The press apparatus according to claim 12. - 前記第1通気孔が前記中間熱盤の下面と側面とを連絡し、
前記第2通気孔が前記中間熱盤の上面と側面とを連絡する、
ことを特徴とする請求項13に記載のプレス装置。 The first vent communicates a lower surface and a side surface of the intermediate heating plate;
The second vent communicates the upper surface and the side surface of the intermediate heating plate;
The press apparatus according to claim 13. - 前記上部ダイヤフラムと前記上部熱盤又は前記中間熱盤との間に配置され、前記上部ダイヤフラムと前記上部熱盤又は前記中間熱盤との接触を防止するダイヤフラム保護板を備えた、
ことを特徴とする請求項5から請求項14のいずれか一項に記載のプレス装置。 A diaphragm protection plate disposed between the upper diaphragm and the upper heating plate or the intermediate heating plate, and preventing contact between the upper diaphragm and the upper heating plate or the intermediate heating plate;
The press apparatus according to any one of claims 5 to 14, wherein - 前記駆動装置が油圧シリンダであり、該油圧シリンダのラムに前記下部熱盤が固定されている、
ことを特徴とする請求項5から請求項15のいずれか一項に記載のプレス装置。 The driving device is a hydraulic cylinder, and the lower heating plate is fixed to a ram of the hydraulic cylinder;
The press apparatus according to any one of claims 5 to 15, wherein - 前記真空枠には、前記気圧制御装置に接続された、前記主チャンバーにエアを給排する第3通気孔が形成されている、
ことを特徴とする請求項4から請求項16のいずれか一項に記載のプレス装置。 The vacuum frame has a third vent hole connected to the atmospheric pressure control device for supplying and discharging air to the main chamber.
The press apparatus according to any one of claims 4 to 16, wherein the press apparatus is characterized in that - 前記第3通気孔が、
前記真空枠の延長方向に延びる環状部と、
前記環状部から延びて前記真空枠の外周面に開口する第1部と、
前記環状部から延びて前記真空枠の内周面に開口する第2部と、
を有することを特徴とする請求項17に記載のプレス装置。 The third vent hole is
An annular portion extending in the extending direction of the vacuum frame;
A first portion extending from the annular portion and opening in the outer peripheral surface of the vacuum frame;
A second portion extending from the annular portion and opening in the inner peripheral surface of the vacuum frame;
The press apparatus according to claim 17, comprising: - 前記第2部が、前記真空枠の延長方向に広がるスリット状に形成されている、
ことを特徴とする請求項18に記載のプレス装置。 The second part is formed in a slit shape extending in the extending direction of the vacuum frame,
The press device according to claim 18. - 前記第1部を気体が通過する際の圧力損失よりも、前記第2部を気体が通過する際の圧力損失の方が大きくなるように構成されている、
ことを特徴とする請求項18又は請求項19に記載のプレス装置。 The pressure loss when the gas passes through the second part is larger than the pressure loss when the gas passes through the first part.
The press apparatus according to claim 18 or 19, characterized by the above. - 前記気圧制御装置が、前記プレス処理において、前記主チャンバー内の気圧を真空にし、前記上部空間及び前記下部空間の気圧を大気圧にする、
ことを特徴とする請求項1から請求項20のいずれか一項に記載のプレス装置。 In the press process, the atmospheric pressure control device makes the atmospheric pressure in the main chamber a vacuum, and makes the atmospheric pressure in the upper space and the lower space atmospheric pressure,
The press apparatus according to any one of claims 1 to 20, wherein: - 前記気圧制御装置が、前記プレス処理前又は前記キュア処理において、前記上部ダイヤフラムが膨張して前記ダイヤフラム保護板に密着するように、前記上部空間と前記主チャンバー内との気圧差を制御する、
ことを特徴とする請求項1から請求項21のいずれか一項に記載のプレス装置。 The atmospheric pressure control device controls the atmospheric pressure difference between the upper space and the main chamber so that the upper diaphragm expands and adheres to the diaphragm protection plate before the pressing process or in the curing process.
The pressing apparatus according to any one of claims 1 to 21, wherein the pressing apparatus is characterized in that - 前記ダイヤフラム成形板及び前記ダイヤフラム保護板の少なくとも一方には通気孔が形成されている、
ことを特徴とする請求項3又は請求項5に記載のプレス装置。 At least one of the diaphragm molding plate and the diaphragm protection plate has a vent hole.
The press apparatus according to claim 3 or 5, characterized in that. - 前記被加工物が積層体であり、前記被加工物を加熱下でプレスして前記被加工物の構成部材を一体に接合するラミネート加工を行うことが可能に構成された、
ことを特徴とする請求項1から請求項23のいずれか一項に記載のプレス装置。 The workpiece is a laminate, and is configured to be capable of performing a laminating process in which the workpiece is pressed under heating to integrally join the components of the workpiece.
The press apparatus according to any one of claims 1 to 23, wherein: - 弾性膜である上部ダイヤフラムによって下面が塞がれた上部チャンバーと、弾性膜である下部ダイヤフラムによって上面が塞がれた下部チャンバーとで上下に挟み込まれて気密な主チャンバーを形成し、前記主チャンバーの気圧を前記上部チャンバー及び前記下部チャンバーの気圧よりも低くすることによって、前記主チャンバー内に配置された被加工物が前記上部ダイヤフラムと前記下部ダイヤフラムとの間でプレスされるように構成された環状の真空枠であって、
前記主チャンバーにエアを給排する通気孔を有し、該通気孔が、
前記真空枠の延長方向に延びる環状部と、
前記環状部から延びて前記真空枠の外周面に開口する第1部と、
前記環状部から延びて前記真空枠の内周面に開口する第2部と、
を有する真空枠。 An upper chamber whose upper surface is closed by an upper diaphragm, which is an elastic membrane, and a lower chamber, whose upper surface is closed by a lower diaphragm, which is an elastic membrane, is sandwiched vertically to form an airtight main chamber, and the main chamber The workpiece placed in the main chamber is pressed between the upper diaphragm and the lower diaphragm by lowering the pressure of the upper chamber and the lower chamber. An annular vacuum frame,
The main chamber has a vent for supplying and discharging air, and the vent is
An annular portion extending in the extending direction of the vacuum frame;
A first portion extending from the annular portion and opening in the outer peripheral surface of the vacuum frame;
A second portion extending from the annular portion and opening in the inner peripheral surface of the vacuum frame;
Having a vacuum frame. - 前記第2部が、前記真空枠の延長方向に広がるスリット状に形成されている
ことを特徴とする請求項25に記載の真空枠。 26. The vacuum frame according to claim 25, wherein the second part is formed in a slit shape extending in the extending direction of the vacuum frame. - 前記第1部を気体が通過するための圧力損失よりも、前記第2部を気体が通過するための圧力損失の方が大きくなるように構成された、
ことを特徴とする請求項25又は請求項26に記載の真空枠。 The pressure loss for the gas to pass through the second part is configured to be larger than the pressure loss for the gas to pass through the first part.
The vacuum frame according to claim 25 or claim 26. - 上下に対向して配置された一対の弾性膜である上部ダイヤフラム及び下部ダイヤフラムによって上部空間及び下部空間とそれぞれ気密に仕切られた主チャンバー内に被加工物を配置し、
前記被加工物を加熱しながら、前記主チャンバー内の気圧を前記上部空間及び前記下部空間の気圧よりも低くして、前記上部ダイヤフラムと前記下部ダイヤフラムとの間で加熱された前記被加工物をプレスするプレス処理を行い、
前記主チャンバー内の気圧を前記下部空間の気圧より大きくして、前記被加工物を非真空下で加熱するキュア処理を行うプレス成形方法。 A workpiece is disposed in a main chamber that is airtightly partitioned from an upper space and a lower space by an upper diaphragm and a lower diaphragm, which are a pair of elastic films disposed vertically opposite to each other,
While heating the workpiece, the pressure in the main chamber is made lower than the pressure in the upper space and the lower space, and the workpiece heated between the upper diaphragm and the lower diaphragm is heated. Press processing to press,
A press molding method for performing a curing process in which the pressure in the main chamber is made larger than the pressure in the lower space and the workpiece is heated in a non-vacuum state. - 前記キュア処理において、前記被加工物の下面が湾曲した凸面である場合に、前記下部ダイヤフラムが前記被加工物の下面に沿って湾曲して前記被加工物を略均一な圧力で支持するように、前記主チャンバー内と前記下部空間との気圧差を制御する、
ことを特徴とする請求項28に記載のプレス成形方法。 In the curing process, when the lower surface of the workpiece is a curved convex surface, the lower diaphragm is curved along the lower surface of the workpiece to support the workpiece with a substantially uniform pressure. Controlling the pressure difference between the main chamber and the lower space;
The press molding method according to claim 28. - 平坦な上面を有するダイヤフラム成形板を、前記下部ダイヤフラムと対向して前記下部空間内に配置し、
前記被加工物の下面が平坦面である場合に、前記キュア処理において、前記下部ダイヤフラムが前記ダイヤフラム成形板の上面と密着して平坦に成形されて前記被加工物を略均一な圧力で支持するように、前記主チャンバーと前記下部空間との気圧差を制御する、
ことを特徴とする請求項29に記載のプレス成形方法。 A diaphragm molding plate having a flat upper surface is disposed in the lower space so as to face the lower diaphragm,
When the lower surface of the workpiece is a flat surface, in the curing process, the lower diaphragm is in close contact with the upper surface of the diaphragm forming plate and is formed flat to support the workpiece with a substantially uniform pressure. So as to control the pressure difference between the main chamber and the lower space,
30. The press molding method according to claim 29. - 前記上部ダイヤフラムと対向して前記上部空間側に熱盤を配置し、
前記上部ダイヤフラムと前記熱盤との間に、前記上部ダイヤフラムと前記熱盤との接触を防止するダイヤフラム保護板を配置し、
前記プレス処理前又は前記キュア処理において、前記上部ダイヤフラムが前記上部空間側に膨張して前記ダイヤフラム保護板と密着するよう、前記主チャンバーと前記上部空間との気圧差を制御する、
ことを特徴とする請求項28から請求項30のいずれか一項に記載のプレス成形方法。 A hot platen is arranged on the upper space side to face the upper diaphragm,
Between the upper diaphragm and the hot platen, a diaphragm protection plate for preventing contact between the upper diaphragm and the hot platen is disposed,
Before the pressing process or the curing process, the pressure difference between the main chamber and the upper space is controlled so that the upper diaphragm expands toward the upper space and comes into close contact with the diaphragm protection plate.
The press molding method according to any one of claims 28 to 30, wherein: - 前記上部ダイヤフラムと前記下部ダイヤフラムの間に、上下に貫通する中空部を有する真空枠を配置し、
前記下部ダイヤフラム上に前記被加工物を載せてから、前記上部ダイヤフラムと前記下部ダイヤフラムの少なくとも一方を上下に移動させて、前記上部ダイヤフラムと前記下部ダイヤフラムとで前記真空枠を気密に挟み込むことによって前記主チャンバーを形成する、
ことを特徴とする請求項28から請求項31のいずれか一項に記載のプレス成形方法。 Between the upper diaphragm and the lower diaphragm, a vacuum frame having a hollow portion penetrating vertically is disposed,
The workpiece is placed on the lower diaphragm, and then at least one of the upper diaphragm and the lower diaphragm is moved up and down to sandwich the vacuum frame between the upper diaphragm and the lower diaphragm in an airtight manner. Forming the main chamber,
32. The press molding method according to any one of claims 28 to 31, wherein: - 前記プレス処理において、前記主チャンバー内の気圧を真空にし、前記上部空間及び前記下部空間の気圧を大気圧にする、
ことを特徴とする請求項28から請求項32のいずれか一項に記載のプレス成形方法。 In the pressing process, the atmospheric pressure in the main chamber is evacuated, and the atmospheric pressure in the upper space and the lower space is atmospheric pressure.
The press molding method according to any one of claims 28 to 32, wherein: - 前記被加工物が積層体であり、前記被加工物を加熱下でプレスして前記被加工物の構成部材を一体に接合するラミネート加工を行う、
ことを特徴とする請求項28から請求項33のいずれか一項に記載のプレス成形方法。 The work piece is a laminate, and the work piece is pressed under heating to perform a laminating process for integrally bonding the constituent members of the work piece.
The press molding method according to any one of claims 28 to 33.
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