JP2008114482A - Mold apparatus and method for molding by it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve mold releasing properties and to shorten a molding cycle. <P>SOLUTION: A mold apparatus has a first mold fitted on a frame; a second mold facing the first mold, arranged so as to be mutually independently freely forwarded and retreated, and equipped with an inner mold 16 for pressing and an outer mold 17 for opening/closing the mold; an insert mold arranged in either one of the first and second molds; a heating element for heating an original mold 15 for a molded article arranged between the insert mold and the other one of the first and second molds; and a cooling element arranged by adjoining the molded article molded by pressing the insert mold to the original mold 15 for the molded article, cooling the molded article, and forming a temperature difference between the first and second faces of the molded article to release the molded article from the insert. It is possible to prevent mold releasing from failing when a fine molding is performed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mold apparatus and a molding method using the mold apparatus.

  Conventionally, for example, in the process of manufacturing a light guide plate, a semiconductor element, etc., when forming a prototype of a molded product made of resin, that is, when forming nanometer-sized fine irregularities on a molded product prototype, There is known an imprint lithography method (hereinafter referred to as “imprint method”) in which a stamper having a fine pattern composed of unevenness corresponding to the unevenness is pressed against the original mold of the molded product to transfer the fine pattern.

  In the imprint method, first, a molded product prototype is attached to one of the lower press stand and the upper press stand, and a stamper is attached to the other. Subsequently, when the upper press table is lowered while the molded product prototype is heated and the stamper is pressed against the molded product prototype, the fine pattern is transferred to the molded product prototype (see, for example, Patent Document 1).

  Subsequently, the stamper is separated from the original mold of the molded product, and the mold release is performed. At this time, if the mold release fails, the stamper may be damaged or peeled off from the lower press table or the upper press table.

Therefore, for example, the upper press table is formed by an outer mold and an inner mold, a fine pattern is formed on the inner mold, and the inner mold is movably disposed with respect to the outer mold, There is provided a mold apparatus in which a compressed fluid for mold release is ejected therebetween.
JP 2004-335012 A

  However, in the conventional mold apparatus, since the inner mold is surrounded by the outer mold, when the inner mold cannot be satisfactorily released from the molded product, the accuracy of the transferred fine pattern decreases, As a result, the quality of the molded product is degraded.

  The present invention solves the problems of the conventional mold apparatus, and provides a mold apparatus that can improve releasability and improve the quality of a molded product, and a molding method using the mold apparatus. With the goal.

  For this purpose, in the mold apparatus of the present invention, a first mold attached to a frame and a pressurizing element arranged to face the first mold and to be moved forward and backward independently of each other. A second mold having an inner mold and an outer mold for opening and closing the mold, a nest disposed in one of the first and second molds, and the nest and the first and second molds. A heating element for heating a molded product prototype disposed between the mold and the other of the molds, and a molded product molded by pressing the insert against the molded product prototype. And a cooling element that cools the molded product, forms a temperature difference between the first and second surfaces of the molded product, and releases the molded product from the insert.

  According to the present invention, in the mold apparatus, the first mold attached to the frame, and the pressurizing member disposed so as to face the first mold and can be moved forward and backward independently of each other. A second mold having an inner mold and an outer mold for opening and closing the mold, a nest disposed in one of the first and second molds, and the nest and the first and second molds. A heating element for heating a molded product prototype disposed between the mold and the other of the molds, and a molded product molded by pressing the insert against the molded product prototype. And a cooling element that cools the molded product, forms a temperature difference between the first and second surfaces of the molded product, and releases the molded product from the insert.

  In this case, the cooling element that cools the molded article formed by pressing the insert against the original mold of the molded article, forms a temperature difference between the first and second surfaces of the molded article, and releases the molded article from the insert. Therefore, it is possible to prevent failure of mold release when performing fine molding. Therefore, the releasability between the molded product and the insert can be improved, and the insert cannot be damaged or peeled off from the mold apparatus.

  In addition, since the cooling element is disposed adjacent to the molded product, the cooling efficiency of the molded product can be improved and the molding cycle can be shortened.

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

  FIG. 1 is a sectional view of a mold apparatus according to the first embodiment of the present invention.

  In the figure, 10 is a mold apparatus, 11 is a lower press table as a first mold mounted on a frame (not shown) and a fixed mold, 12 is opposed to the lower press table 11, and An upper press stand as a second mold that is disposed so as to be movable back and forth in the vertical direction and as a movable mold. Each of the lower press table 11 and the upper press table 12 has a rectangular shape, but may have a circular shape.

  A stamper 14 as a nesting is detachably attached to the lower press table 11 on a surface S1 facing the upper press table 12, and the stamper 14 is made of a resin as a molding material and has a plate-like shape. A prototype of a molded product that is a preformed product, that is, a molded product prototype 15 is positioned and disposed. On the surface of the stamper 14 facing the upper press table 12, a fine pattern (not shown) made of fine irregularities is formed. The stamper 14 and the molded product prototype 15 both have a rectangular shape, but may have a circular shape.

  The lower press stand 11 sucks the stamper 14 and sucks the stamping channel 20 as a first channel for positioning the stamper 14 at a predetermined position. The blowout flow path 13 as the second flow path and as the protruding element is formed. The suction channel 20 is formed by penetrating substantially the center of the lower press table 11 in the vertical direction, and is formed at a channel 21 connected to a negative pressure source (not shown) such as a suction pump, and at the tip of the channel 21. In addition, the suction branching portion 22 having a circular shape, and a plurality of openings 23 in the circumferential direction of the suction branching portion 22, in the present embodiment, two openings 23 are opened on the surface S <b> 1. Further, the blow-out flow path 13 is formed by penetrating the outer portion of each opening 23 in the vertical direction, and is connected to a pressure source (not shown) such as a pressure pump, and the flow path. 25 has an opening 26 that opens at the surface S1. The stamper 14 is formed with a blowing flow path 30 at a location corresponding to the blowing flow path 13, and the stamper 14 is connected to the pressurization source via the blowing flow path 30 and the blowing flow path 13. Is done.

  On the other hand, the upper press table 12 surrounds the inner die 16 for pressurization and the inner die 16, and is slidable with respect to the inner die 16 and relatively movable forward and backward. An annular outer mold 17 for opening and closing the mold is provided. The inner mold 16 has a rectangular shape, but may have a circular shape. In order to move the inner die 16 forward and backward, a pressurizing cylinder (not shown) which is a hydraulic cylinder for pressurization as a first drive unit and as a pressurizing device is provided, and the outer die 17 is advanced and retracted. A mold clamping cylinder (not shown) which is a hydraulic cylinder for mold clamping as the second driving unit and as a mold clamping device is provided. In place of the hydraulic cylinder, an air cylinder, a motor (electric motor) or the like can be used.

  The inner mold 16 is provided with a heater 27 as a heating element for heating the molded product prototype 15 and as a heating element, and the heater 27 is connected to a power source (not shown). The outer mold 17 is formed with a medium inflow path 28 as a first medium flow path and a medium outflow path 29 as a second medium flow path penetrating in the horizontal direction. The medium outlet path 29 is connected to a cooling medium supply source (not shown) such as a blower.

  Next, the operation of the mold apparatus 10 having the above configuration will be described.

  FIG. 2 is a diagram showing a control circuit of the mold apparatus according to the first embodiment of the present invention.

  In the figure, 31 is a control unit, 32 is an on-off valve disposed in a pipe line connecting the suction flow path 20 and the negative pressure source, and 33 connects the blowing flow path 13 and the pressure source. It is an on-off valve disposed in the pipeline. 34 is a switch circuit for controlling the energization of the heater 27, 45 is an on-off valve disposed in a pipe line connecting the medium inflow path 28 and the cooling medium supply source, and 46 is a medium outflow path 29 and a cooling medium supply. It is an on-off valve disposed in a pipe line connecting the source.

  36 is a pressure cylinder, 38 is a switching valve for supplying and discharging oil to and from the pressure cylinder 36, 37 is a clamping cylinder, and 39 is to supply and discharge oil to and from the clamping cylinder 37. This is a switching valve.

  FIG. 3 is a view showing a molded product prototype setting step in the first embodiment of the present invention, FIG. 4 is a view showing a heating step in the first embodiment of the present invention, and FIG. 5 is a first view of the present invention. The figure which shows the pressurization process in embodiment, FIG. 6 is the figure which shows the cooling process in the 1st Embodiment of this invention, FIG. 7 is the figure which shows the mold opening process in the 1st Embodiment of this invention, FIG. 8 is a diagram showing a molded product take-out step in the first embodiment of the present invention.

  First, an initialization processing unit (initialization processing unit) (not shown) of the control unit 31 performs initialization processing, and as shown in FIG. 3, the inner mold 16 and the outer mold 17 are placed at the upper position which is the retracted position. In this state, the stamper 14 is placed on the surface S <b> 1 of the lower press stand 11, the opening / closing valve 32 is operated to open, the suction flow path 20 and the negative pressure source are communicated, and the stamper 14 is sucked. Thereby, the stamper 14 can be attached to the lower press stand 11.

  Subsequently, in the molded product prototype setting step, the molded product prototype set processing means (molded product prototype set processing unit) (not shown) of the control unit 31 performs molded product prototype set processing, and as shown in FIG. With the 16 and the outer mold 17 placed in the upper position, a robot (not shown) is operated to place the molded product prototype 15 on the stamper 14 and set it in the mold apparatus 10.

  Next, in the heating process, the mold opening / closing processing means (mold opening / closing processing section) (not shown) of the control unit 31 performs the mold opening / closing process, and the inner mold 16 is placed in the upper position as shown in FIG. Then, the switching valve 39 is operated, the mold clamping cylinder 37 is driven, the outer mold 17 is advanced, and placed at the lower position which is the advance position. As a result, the mold apparatus 10 is closed, and a closed space 41 is formed by the molded product original mold 15, the inner mold 16 and the outer mold 17. Further, a heating processing unit (heating processing unit) (not shown) of the control unit 31 performs heating processing, operates the switch circuit 34, energizes the heater 27, and heats the closed space 41 and the molded product prototype 15.

  Subsequently, in the pressurizing step, the pressurizing processing means (pressurizing processing unit) (not shown) of the control unit 31 performs the pressurizing process, and the outer mold 17 is placed at the lower position as shown in FIG. In this state, the switching valve 38 is operated to drive the pressurizing cylinder 36 to advance the inner mold 16 and put it in the lower position which is the advance position. As a result, the mold apparatus 10 is pressurized, the stamper 14 is pressed against the molded product prototype 15, and the fine pattern of the stamper 14 is transferred to the molded product prototype 15. At this time, a part of the molded product prototype 15 enters the blowout flow path 30. In this way, the molded product 55 is molded from the molded product prototype 15.

  Next, in the cooling process, as shown in FIG. 6, the mold opening / closing processing means operates the switching valve 38 and drives the pressure cylinder 36 with the outer mold 17 placed in the lower position. The inner mold 16 is retracted and placed in the upper position. Thereby, the inner mold 16 is released, and a closed space 41 that functions as a cooling element is formed by the molded product original mold 15, the inner mold 16, and the outer mold 17. Further, a cooling processing means (cooling processing unit) (not shown) of the control unit 31 performs a cooling process, opens the on-off valves 45 and 46, and air as a cooling medium in the closed space 41 through the medium inflow path 28. The lower press table 11, the upper press table 12, the stamper 14 and the molded product 55 are cooled while the air is supplied to the mold apparatus 10 via the medium outlet path 29. To discharge from. In addition to air, an inert gas such as carbon dioxide gas or nitrogen gas can be used as the cooling medium.

  Next, in the mold opening process, as shown in FIG. 7, the mold opening / closing processing means operates the switching valve 39 and drives the mold clamping cylinder 37 in a state where the inner mold 16 is placed at the upper position. The outer mold 17 is retracted and placed in the upper position. Thereby, the outer mold 17 is released and the closed space 41 is opened.

  Subsequently, in the molded product extraction process, a molded product extraction processing means (molded product extraction processing unit) (not shown) of the control unit 31 performs molded product extraction processing, opens the on-off valve 33, and adds to the outlet flow path 13. Communicating with the pressure source, supplying air as the blowing medium to the blowing flow path 13 and blowing it from the opening 26, as shown in FIG. 8, the molded product 55 is ejected, and the molded product 55 is completely removed from the stamper 14. Let mold release. The molded product removal processing means operates the robot to take out the molded product 55. At this time, simply supplying air to the blow-out flow path 13 and blowing the air through the opening 26 to release the molded product 55 may cause the fine pattern transferred to the molded product 55 to be broken at the time of mold release. There is a risk that the stamper 14 may be damaged due to failure of mold release.

  Therefore, in the cooling step, air is supplied into the closed space 41 and is retained in the closed space 41. At this time, the molded product 55 is cooled from the upper surface S5 which is the first surface facing the upper press table 12. Therefore, until the cooling process is completed, a temperature difference is formed between the upper surface S5 of the molded product 55 and the opposite lower surface S6, which is the second surface, and thermal expansion (shrinkage difference) occurs, and the molded product. Sled is formed at 55. As a result, the molded product 55 can be released from the stamper 14. Further, since it is possible to prevent the mold release from failing when performing the fine molding, it is possible to improve the mold release property between the molded product 55 and the stamper 14, and the stamper 14 is damaged or It will not peel off from the press table 11.

  Further, since the closed space 41 has a predetermined capacity, the air that has entered the closed space 41 via the medium inflow path 28 is retained in the closed space 41, and during that time, the molded product 55 is continuously cooled. Therefore, the cooling efficiency of the molded product 55, in particular, the portion where the fine pattern is transferred can be improved, and the molding cycle can be shortened.

  Further, in the cooling process, the inner mold 16 is retracted and placed in the upper position in a state where the outer mold 17 is placed in the lower position. Subsequently, in the mold releasing process, the outer mold 17 is retracted and moved to the upper position. In the meantime, the molded product 55 is always placed on the lower press table 11 side. Therefore, the molded product 55 can be taken out smoothly.

  In the molded product take-out step, the molded product 55 is ejected by the air blown from the opening 26 and cooled, so that the cooling efficiency can be further improved.

  Next, a second embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the same code | symbol is provided and the effect of the same embodiment is used about the effect of the invention by having the same structure.

  FIG. 9 is a sectional view of a mold apparatus according to the second embodiment of the present invention.

  In this case, the stamper 14 as a nesting is detachably attached to the inner mold 16 on a surface S11 facing the lower press table 11, and the lower press table 11 has a surface S12 facing the upper press table 12, A molded product prototype 15 made of resin as a molding material and having a plate shape is positioned and disposed. A fine pattern pt composed of fine irregularities is formed on the surface of the stamper 14 facing the lower press table 11. The upper press table 12 is formed with a suction channel 20 as a first channel for sucking the stamper 14 and positioning it at a predetermined position, and the lower press table 11 is molded. A blow-out flow path 13 is formed as a second flow path for protruding the molded product after being broken and as a protruding element. The suction channel 20 is formed by penetrating substantially the center of the lower press table 11 in the vertical direction, and is formed at a channel 21 connected to a negative pressure source (not shown), at the tip of the channel 21, and has a circular shape. The suction branching portion 22 having a shape, and the openings 23 opened at the surface S11 at two or more locations in the circumferential direction of the suction branching portion 22, in the present embodiment. Further, the blow-out flow path 13 is formed by penetrating a portion outside the position corresponding to each opening 23 in the vertical direction, and connected to a pressure source (not shown), and the flow path 25 The opening part 26 opened by the said surface S12 is provided in the front-end | tip.

  The upper press table 12 includes an inner die 16 and an annular outer die 17 that surrounds the inner die 16 and is slidable relative to the inner die 16 and relatively movable forward and backward. Prepare. In order to move the inner die 16 forward and backward, a pressure cylinder (not shown) as a first driving unit and as a pressurizing device is provided, and in order to move the outer die 17 forward and backward, a second driving unit is provided. A mold clamping cylinder (not shown) as a mold clamping device is provided.

  The inner mold 16 is provided with a heater 27 as a first heating element for heating the molded product prototype 15 and as a heating body, and the heater 27 is connected to a power source (not shown). . The outer mold 17 is formed with a medium inflow path 68 as a first medium flow path and a medium outflow path 69 as a second medium flow path penetrating in the horizontal direction. The medium outflow path 69 is connected to a heating medium supply source (not shown) such as an air heater as a second heating element.

  Further, the lower press table 11 is adjacent to the molded product prototype 15 in the vicinity of the surface S12 at a position corresponding to the molded product prototype 15, and serves as a third medium flow path and as a first cooling element. The temperature control channel 61 is disposed, and the temperature control channel 61 is connected to a cooling medium supply source (not shown) such as a temperature controller, and water as a cooling medium is supplied from the cooling medium supply source.

  Next, the operation of the mold apparatus 10 having the above configuration will be described.

  FIG. 10 is a diagram showing a control circuit of the mold apparatus according to the second embodiment of the present invention.

  In the figure, 31 is a control unit, 32 is an on-off valve disposed in a pipe line connecting the suction flow path 20 and the negative pressure source, and 33 connects the blowing flow path 13 and the pressure source. It is an on-off valve disposed in the pipeline. Also, 34 is a switch circuit for controlling the energization of the heater 27, 75 is an on-off valve disposed in a pipe line connecting the medium inflow path 68 and the heating medium supply source, and 76 is a medium outflow path 69 and a heating medium supply. An open / close valve 77 is provided in the pipe line connecting the source, and an open / close valve 77 is provided in the pipe line connecting the temperature control flow path 61 and the cooling medium supply source.

  36 is a pressure cylinder, 38 is a switching valve for supplying and discharging oil to and from the pressure cylinder 36, 37 is a clamping cylinder, and 39 is to supply and discharge oil to and from the clamping cylinder 37. This is a switching valve.

  FIG. 11 is a diagram showing a molded product prototype setting step in the second embodiment of the present invention, FIG. 12 is a diagram showing a heating step in the second embodiment of the present invention, and FIG. 13 is a second diagram of the present invention. The figure which shows the pressurization process in embodiment, FIG. 14 is the figure which shows the cooling process in the 2nd Embodiment of this invention, FIG. 15 is the figure which shows the mold opening process in the 2nd Embodiment of this invention, FIG. 16 is a diagram showing a molded product removal step in the second embodiment of the present invention.

First, as shown in FIG. 11, the initialization processing means places the stamper 14 on the surface S11 of the inner mold 16 with the inner mold 16 and the outer mold 17 placed in the upper position, and opens and closes the stamper. The valve 32 is operated to be opened, the suction flow path 20 and the negative pressure source are communicated, and the stamper 14 is sucked. Thereby, the stamper 14 can be attached to the upper press stand 12. In this case, when the thickness of the inner die 16 is δ1, the thickness of the stamper 14 is δ2, and the thickness of the outer die 17 is δ3,
δ1 + δ2 = δ3
The surface S13 of the stamper 14 facing the lower press table 11 and the surface S14 of the outer mold 17 facing the lower press table 11 are high. In the vertical direction.

  Subsequently, in the molded product prototype setting step, the molded product prototype set processing means operates a robot (not shown) with the inner mold 16 and the outer mold 17 placed in the upper position as shown in FIG. The molded product prototype 15 is placed on the surface S12 and set in the mold apparatus 10.

  Next, in the heating step, as shown in FIG. 12, the mold opening / closing processing means operates the switching valve 39 and drives the mold clamping cylinder 37 in a state where the inner mold 16 is placed at the upper position. The outer mold 17 is advanced and placed in the lower position. As a result, the mold apparatus 10 is closed, and a closed space 41 as a heating element and as a second cooling element is formed by the stamper 14, the molded product prototype 15 and the outer mold 17. Further, the heat treatment means activates the switch circuit 34 to energize the heater 27 to heat the closed space 41 and the molded product prototype 15. Further, the heat treatment means opens the on-off valves 75 and 76, supplies heated air as a heating medium into the closed space 41 via the medium inflow path 68, and stays in the closed space 41. In the meantime, the stamper 14 and the molded product prototype 15 are heated, and then the air is discharged from the mold apparatus 10 through the medium outflow passage 69.

  Next, in the pressurizing step, the pressurizing means operates the switching valve 38 and drives the pressurizing cylinder 36 in a state where the outer mold 17 is placed at the lower position as shown in FIG. Then, the inner mold 16 is advanced and placed in the lower position which is the advance position. As a result, the mold apparatus 10 is pressurized, the stamper 14 is pressed against the molded product prototype 15, and the fine pattern of the stamper 14 is transferred to the molded product prototype 15. In this way, the molded product 55 is molded from the molded product prototype 15.

  Subsequently, in the cooling step, the cooling processing means operates the open / close valve 77 to open, supplies water to the temperature control flow path 61, and cools the molded product 55.

  Further, as shown in FIG. 14, the mold opening / closing processing means operates the switching valve 38 in a state where the outer mold 17 is placed at the lower position, and drives the pressure cylinder 36 to retract the inner mold 16. And place it in the upper position. Thereby, the molded product 55 is released.

  As the inner mold 16 is placed in the upper position, the closed space 41 is formed by the stamper 14, the molded product original mold 15 and the outer mold 17, so that air as a cooling medium is supplied to the closed space 41, The molded product 55 can be cooled by air. In that case, a cooling medium supply source (not shown) such as a blower is connected to the medium inflow path 68 and the medium outflow path 69 in addition to the heating medium supply source, and the pipe is switched by a switching valve. Air is supplied to the closed space 41 through the medium outflow passage 69 and is retained in the closed space 41, while the lower press table 11, the upper press table 12, the stamper 14 and the molded product 55 are cooled. Air is discharged from the mold apparatus 10.

  Next, in the mold opening process, as shown in FIG. 15, the mold opening / closing processing means operates the switching valve 39 and drives the mold clamping cylinder 37 with the inner mold 16 placed in the upper position. The outer mold 17 is retracted and placed in the upper position. Thereby, the outer mold 17 is released and the closed space 41 is opened.

  Subsequently, in the molded product take-out step, the molded product take-out processing means operates and opens the on-off valve 33 to connect the blow-out flow path 13 and the pressurizing source so that air as the blow-out medium is blown out. , And blown out from the opening 26, as shown in FIG. 16, the molded product 55 is ejected and the molded product 55 is completely released from the stamper 14. The molded product removal processing means operates the robot to take out the molded product 55. At this time, when the inner mold 16 is simply retracted by the mold opening / closing processing means and the molded product 55 is released, the fine pattern transferred to the molded product 55 is destroyed or the release fails at the time of releasing. The stamper 14 may be damaged.

  Therefore, in the cooling step, water is supplied to the temperature control flow path 61, and the molded product 55 is cooled. At this time, the molded product 55 is cooled from the lower surface S15 which is the first surface facing the lower press table 11. Therefore, until the cooling step is completed, a temperature difference is formed between the lower surface S15 of the molded product 55 and the upper surface S16 opposite to the second surface, and thermal expansion occurs, causing the molded product 55 to warp. Is formed. As a result, the molded product 55 can be released from the stamper 14. Further, since it is possible to prevent the mold release from failing when performing the fine molding, it is possible to improve the mold release property between the molded product 55 and the stamper 14, and the stamper 14 is damaged or It will not peel off from the press table 11.

  In addition, when air is supplied to the closed space 41 in the cooling process, the closed space 41 has a predetermined capacity. Therefore, air that has entered the closed space 41 through the medium inflow path 68 is retained in the closed space 41. Meanwhile, the molded product 55 is continuously cooled. Therefore, the cooling efficiency of the molded product 55, in particular, the portion where the fine pattern is transferred can be improved, and the molding cycle can be shortened.

  In each of the above embodiments, the heater 27 is disposed on the upper press table 12 and the molded product prototype 15 is set on the lower press table 11, but the heater is disposed on the lower press table 11, A molded product prototype can also be set on the upper press table 12.

  The present invention is not limited to the above embodiments, and various modifications can be made based on the gist of the present invention, and they are not excluded from the scope of the present invention.

It is sectional drawing of the metal mold apparatus in the 1st Embodiment of this invention. It is a figure which shows the control circuit of the metal mold | die apparatus in the 1st Embodiment of this invention. It is a figure which shows the molded product prototype setting process in the 1st Embodiment of this invention. It is a figure which shows the heating process in the 1st Embodiment of this invention. It is a figure which shows the pressurization process in the 1st Embodiment of this invention. It is a figure which shows the cooling process in the 1st Embodiment of this invention. It is a figure which shows the mold opening process in the 1st Embodiment of this invention. It is a figure which shows the molded article extraction process in the 1st Embodiment of this invention. It is sectional drawing of the metal mold | die apparatus in the 2nd Embodiment of this invention. It is a figure which shows the control circuit of the metal mold | die apparatus in the 2nd Embodiment of this invention. It is a figure which shows the molded product prototype setting process in the 2nd Embodiment of this invention. It is a figure which shows the heating process in the 2nd Embodiment of this invention. It is a figure which shows the pressurization process in the 2nd Embodiment of this invention. It is a figure which shows the cooling process in the 2nd Embodiment of this invention. It is a figure which shows the mold opening process in the 2nd Embodiment of this invention. It is a figure which shows the molded article extraction process in the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mold apparatus 11 Lower press stand 12 Upper press stand 14 Stamper 15 Molded article original mold 16 Inner mold 17 Outer mold 27 Heater 41 Closed space 55 Molded article 61 Temperature control flow path S5, S15 Upper surface S6, S16 Lower surface

Claims (7)

(A) a first mold attached to the frame;
(B) a second mold having an inner mold for pressurization and an outer mold for opening and closing the mold, which are opposed to the first mold and are independently movable forward and backward;
(C) a nesting disposed in one of the first and second molds;
(D) a heating element for heating a molded product prototype disposed between the insert and the other of the first and second molds;
(E) It is arranged adjacent to a molded product formed by pressing the insert against the molded product prototype, and the molded product is cooled to form a temperature difference between the first and second surfaces of the molded product. And a cooling element for releasing the molded product from the insert. (A) the insert is disposed in a first mold;
(B) The mold apparatus according to claim 1, wherein the molded product prototype is placed on the insert.   When the inner mold is in the retracted position and the outer mold is in the advanced position, a closed space for cooling the molded product from the first surface is formed between the molded product and the second mold. The mold apparatus according to claim 1 or 2. (A) the nesting is disposed in a second mold;
(B) The mold apparatus according to claim 1, wherein the molded product prototype is placed on the first mold.   The mold apparatus according to claim 1 or 4, wherein a medium flow path for cooling the molded product from the first surface is formed in the first mold.   The mold apparatus according to any one of claims 1 to 5, wherein a blow-out flow path for projecting a molded product is formed in the second mold by blowing out a blow-out medium. A first mold attached to the frame, an inner mold for pressurization and an outer mold for opening and closing the mold, which are opposed to the first mold and independently of each other, are provided. In a molding method using a mold apparatus having a second mold and a nest disposed in one of the first and second molds,
(A) A molded product prototype is set between the insert and the other of the first and second molds,
(B) heating the molded product prototype,
(C) molding the molded product by pressing the insert against the molded product prototype;
(D) The molded product is cooled by a cooling element disposed adjacent to the molded product, and a temperature difference is formed between the first and second surfaces of the molded product to release the molded product from the insert. A molding method using a mold apparatus.

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