WO2014061457A1 - 成型装置、成形装置ユニット及び成形方法 - Google Patents
成型装置、成形装置ユニット及び成形方法 Download PDFInfo
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- WO2014061457A1 WO2014061457A1 PCT/JP2013/076934 JP2013076934W WO2014061457A1 WO 2014061457 A1 WO2014061457 A1 WO 2014061457A1 JP 2013076934 W JP2013076934 W JP 2013076934W WO 2014061457 A1 WO2014061457 A1 WO 2014061457A1
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- lower mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/54—Compensating volume change, e.g. retraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/005—Compensating volume or shape change during moulding, in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
- B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
- B29C2043/025—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves forming a microstructure, i.e. fine patterning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5816—Measuring, controlling or regulating temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5833—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2905/00—Use of metals, their alloys or their compounds, as mould material
Definitions
- the present invention relates to a molding apparatus, a molding apparatus unit, and a molding method.
- the transfer device of Patent Document 1 includes a mold holder that holds a transfer mold, a substrate table that is disposed opposite to the mold holder and on which a substrate to be molded is disposed, and the mold holder that is placed on the substrate table.
- the substrate table moving means comprises a linear motor.
- a relative positional deviation amount between the substrate table and the mold holder that is generated when the substrate placed on the substrate table is pressed by a mold held by the mold holder is measured.
- the positioning target value is set by adding the positional deviation amount.
- control unit gradually increases the substrate until the position of the substrate table reaches the positioning target value until the pressing force of the mold holding body when the substrate is pressed becomes maximum.
- table moving means moves the position of the substrate table.
- the substrate table moving means does not force the substrate table during the transfer, so that the current flowing through the substrate table moving means can be reduced, and the heat generation from the substrate table moving means is suppressed. is doing.
- the pressing force of the mold holder reaches a maximum, heat or light is applied to the resin (thermosetting or photocuring) that is the molding layer of the substrate to cure the molding layer. Thereafter, the mold holder is separated from the substrate table to obtain a molded substrate.
- Japanese Patent Publication Japanese Patent Laid-Open No. 2007-260791 (published on Oct. 11, 2007)”
- Japanese Patent Publication Japanese Patent Laid-Open No. 2005-205844 (published on August 4, 2005)”
- the present invention has been made in order to solve the above-mentioned problems, and its purpose is to obtain a molded product by preventing a volume decrease when the resin is cured and a positional shift accompanying a cooling process.
- a molding apparatus includes an upper mold and a lower mold, which are a pair of molds, and is molded by sandwiching a resin between the upper mold and the lower mold.
- a first drive unit for moving the upper mold in a first direction approaching the lower mold to press the resin; and a second direction intersecting the first direction.
- a second drive unit that holds the position of the movable lower mold, and the second drive unit is configured to remove the resin sandwiched between the upper mold and the lower mold before releasing the mold. Stop holding the position of the lower mold.
- a molding method is a molding method in which a resin is sandwiched between an upper mold and a lower mold, which are a pair of molds, and the upper mold is It moves in the first direction approaching the lower mold, presses the resin, holds the position of the lower mold that can move in the second direction intersecting the first direction, The holding of the position of the lower mold is stopped before the resin sandwiched between the lower molds is released.
- FIG. 1 is a diagram illustrating a configuration of a molding apparatus 1 according to the present embodiment.
- the molding apparatus 1 has an X axis, a Y axis, and a Z axis that intersect at right angles to each other and a C axis that is a rotation axis.
- the Z-axis direction is the vertical direction (vertical direction), and is orthogonal to the X-axis, Y-axis, and C-axis.
- the vertical direction is the first direction in the Z-axis direction.
- the X axis and the Y axis are directions perpendicular to the Z axis (second direction). That is, the X axis and the Y axis are horizontal directions and are linear directions orthogonal to each other.
- the C axis is the horizontal direction and the rotational direction.
- the X axis is the left-right direction in FIG. 1, and the Y axis is a direction orthogonal to the X axis.
- the molding apparatus 1 includes an upper base member 2, a lower base member 3 disposed below the upper base member 2, a plurality of columns 4 connecting the upper base member 2 and the lower base member 3, and a vertically movable member.
- An upper mold holding portion 8 disposed on the facing surface of the supporting body 7, the lower base member 3 of the supporting body 7, and a table 9 disposed on the facing surface of the supporting body 7 of the lower base member 3. It has.
- the molding apparatus 1 includes a ball screw 6 and a servo motor (first drive unit) 11 for moving the support 7 and the upper mold holding unit 8 in the Z-axis direction, and a table 9 in the X-axis / Y-axis direction.
- An X-axis servomotor mechanism 12 and a Y-axis servomotor mechanism 13, a load cell 15, and a control unit 20 are provided for moving the X-axis servomotor.
- the table 9 moves in the C-axis direction in addition to the X-axis direction and the Y-axis direction.
- the molding apparatus 1 includes a C-axis moving mechanism for moving the table 9 to the C-axis.
- the control unit 20 includes a motor control unit 21, a temperature control unit 31, and a position detection unit (curing determination unit) 41.
- the motor control unit 21 controls the drive of the servo motor 11, the X-axis servo motor mechanism 12 and the Y-axis servo motor mechanism 13, and controls the movement of the table 9 in the C-axis direction.
- the temperature control unit 31 is a control unit for controlling the temperature of the upper mold MU and the lower mold ML.
- the position detection unit 41 acquires the XY coordinate position of the table 9 from the linear scales of the X-axis servomotor mechanism 12 and the Y-axis servomotor mechanism 13.
- the upper mold MU and the lower mold ML are a pair of molds.
- the molding apparatus 1 molds the resin part W by sandwiching the resin part W between the upper mold MU and the lower mold ML.
- the upper mold MU is arranged on the surface of the upper mold holding unit 8 facing the table 9.
- a lower mold ML is disposed on a surface facing the upper mold holding portion 8 of the table 9.
- the upper mold MU and the lower mold ML are molds for molding a resin.
- the upper mold MU and the lower mold ML are paired, and sandwich the resin part W that is a molded article disposed between the upper mold MU and the lower mold ML, and mold the resin part W.
- Resin part W has a thermosetting or photo-curing resin material.
- the plurality of support columns 4 are arranged on the lower base member 3 with the Z-axis direction as the extending direction, and support the upper base member 2. For example, a total of four support columns 4 are arranged so as to connect the mutually opposing corners of the lower base member 3 and the upper base member 2.
- pillar 4 should just be the number of the grade which can support the upper base member 2, and is not specifically limited to four.
- Servo motor 11 and ball screw 6 are drive units for moving support 7 and upper mold holding unit 8 in the Z-axis direction.
- the servo motor 11 is driven by an instruction from the motor control unit 21 to rotate the ball screw 6.
- the servo motor 11 is disposed on the upper surface of the upper base member 2.
- the ball screw 6 is disposed directly below or via the load cell 15 below the upper base member 2 with the Z axis as the extending direction.
- the support 7 supports the upper mold holding portion 8 from above. Each of the four corners of the support 7 is provided with a support column 4 penetrating therethrough.
- a ball screw 6 is inserted into the inside of the support body 7 from the upper surface side of the support body 7. As the ball screw 6 rotates, the support 7 moves up and down along the extending direction of the ball screw 6, that is, the Z-axis direction.
- the upper mold holding unit 8 and the upper mold MU also move in the Z-axis direction.
- the upper mold holding unit 8 holds the upper mold MU from above. Moreover, although not shown in figure, the upper mold
- the upper mold holding part 8 only needs to include a light source for photo-curing resin curing. In this case, it is not necessary to arrange a heat source or a temperature sensor in the upper mold holding unit 8.
- the load cell 15 detects a pressing force when the resin part W is pressed by the upper mold MU, and outputs the detected pressing force to the control unit 20.
- the load cell 15 is disposed, for example, on the lower surface of the upper base member 2 (the surface facing the support body 7).
- the table 9 moves in the X-axis direction, the Y-axis direction, and the C-axis direction.
- the lower mold ML is disposed on the upper surface of the table 9 (the surface facing the upper mold holding portion 8).
- the table 9 includes a heat source and a temperature sensor.
- the table 9 raises the temperature of the heat source and transfers the heat to the lower mold ML according to an instruction from the temperature control unit 31. Thereby, when the resin component W is a thermosetting resin, it is thermoset. Further, the table 9 outputs temperature information of the lower mold ML detected by the temperature sensor to the temperature control unit 31 according to an instruction from the temperature control unit 31.
- the table 9 may not be provided with a heat source or a temperature sensor.
- the X-axis servo motor mechanism 12 and the Y-axis servo motor mechanism 13 are arranged below the table 9 and between the table 9 and the lower base member 3. Either the X-axis servomotor mechanism 12 or the Y-axis servomotor mechanism 13 may be arranged above and below. As an example, it is assumed that the X-axis servomotor mechanism 12 is disposed below and the Y-axis servomotor mechanism 13 is disposed above.
- the X-axis servo motor mechanism 12 is a drive unit for moving the table 9 and the lower mold ML in the X-axis direction according to an instruction from the motor control unit 21.
- the X-axis servomotor mechanism 12 includes a servomotor 12a and an X-axis linear scale 12b.
- the X-axis position of the table 9 can be detected by the X-axis linear scale 12b.
- the X-axis linear scale 12 b outputs the detected X-axis position of the table 9 to the position detection unit 41.
- the Y-axis servo motor mechanism 13 is a drive unit for moving the table 9 and the lower mold ML in the Y-axis direction according to an instruction from the motor control unit 21.
- the Y-axis servomotor mechanism 13 includes a servomotor 13a and a Y-axis linear scale 13b.
- the Y-axis position of the table 9 can be detected by the Y-axis linear scale 13b.
- the Y-axis linear scale 13 b outputs the detected Y-axis position of the table 9 to the position detection unit 41.
- the control unit 20 is a control unit for performing drive control of each drive unit of the molding apparatus 1.
- the motor control unit 21 is a controller for controlling the servo motors 12a and 13b of the servo motor 11, the X-axis servo motor mechanism 12 and the Y-axis servo motor mechanism 13, and the driving of the C-axis moving mechanism.
- the motor control unit 21 drives the servo motors 12a and 13b and fixes the XYZ axes by causing a current to flow through the servo motors 11, 12a, and 13b.
- the motor control unit 21 drives the servo motor 11 to lower the support 7, the upper mold holding unit 8, and the upper mold MU in the Z-axis direction.
- the motor control unit 21 lowers the upper mold MU in the Z-axis direction until it acquires information from the load cell 15 that the control unit 20 has reached a certain pressing force. Then, when the motor control unit 21 acquires information that the control unit 20 has reached a constant pressing force from the load cell 15, the motor control unit 21 stops the lowering of the upper mold MU and fixes the upper mold MU at that position.
- the motor control unit 21 controls the drive of the servo motors 12a and 13a to adjust the XY coordinate position of the table 9 and adjust the relative position between the upper mold MU and the lower mold ML.
- the motor control unit 21 applies a constant current to the servo motors 12a and 13a, thereby applying a holding force to the table 9. Thereby, the XY coordinate position of the table 9 is fixed.
- the motor control unit 21 acquires information indicating that the curing point of the resin part W has been detected from the position detection unit 41 during the molding process, the motor control unit 21 stops the output of the current flowing through the servo motors 12a and 13a. The holding force of the XY axis is released. In other words, servo free.
- the temperature control unit 31 controls the temperatures of the upper mold MU and the lower mold ML by controlling the driving of heat sources (not shown) disposed in the upper mold holding unit 8 and the table 9, respectively.
- the temperature control unit 31 acquires temperature information of each of the upper mold MU and the lower mold ML from the temperature sensors arranged in the upper mold holding unit 8 and the table 9 respectively.
- the position detection unit 41 acquires the X coordinate position of the table 9 by acquiring information from the linear scale 12b at a predetermined time interval, and acquires the information from the linear scale 13b to acquire Y of the table 9. Get the coordinate position.
- the movement amount per unit time of the table 9 is compared with other periods. Get smaller.
- the position detection unit 41 detects the curing point before the resin component W is released by observing the amount of movement of the table 9 during molding per unit time.
- the position detection unit 41 includes linear scales 12b and 13b. From the XY coordinate position acquired per unit time, the movement amount of the XY coordinate position per unit time in the table 9 is not more than a predetermined value, and the movement amount not more than the predetermined value continues for a predetermined number of times. It is determined that the resin part W has reached the curing point.
- the position detection unit 41 determines that the resin component W has reached the curing point, the position detection unit 41 outputs information indicating that the curing point of the resin component W has been detected to the motor control unit 21.
- FIG. 2 is a diagram illustrating the molding operation of the molding apparatus 1. As shown to (a) of FIG. 2, on the lower mold
- the motor control unit 21 lowers the upper mold holding unit 8 in the Z-axis direction to bring the upper mold MU and the resin part W into contact with each other. It is sandwiched between the upper mold MU and the lower mold ML. At this time, the upper mold holding portion 8 and the upper mold MU apply a constant pressing force to the resin part W vertically downward by the force from the servo motor 11. Further, the table 9 and the lower mold ML are given a holding force for fixing their positions so as not to move in the X direction and the Y direction by the X axis servo motor mechanism 12 and the Y axis servo motor mechanism 13.
- the temperature control unit 31 heats the upper mold MU and the lower mold ML, and raises the temperature until the temperature reaches a temperature at which the resin part W is cured. Thereby, hardening of the resin component W starts.
- the resin part W is not thermosetting but photocurable, the resin part W is irradiated with curing light.
- the motor control unit 21 moves the X axis and the Y axis on the table 9 side. Release the holding force of the servo motors 12a and 13a (make the servo free).
- the servo-free timing is determined based on the change in the specific volume of the resin part W during molding, that is, the PVT characteristics.
- the motor control unit 21 drives the servo motor 11 to move the upper mold holding unit 8 and the upper mold MU vertically upward. Thereby, the molded resin part W is completed and can be taken out.
- FIG. 3 is a diagram illustrating a state in which the relative positions of XY of the upper mold MU and the lower mold ML are shifted.
- FIG. 3A is a side view illustrating a state where the upper mold MU and the lower mold ML are displaced
- FIG. 3B is a plan view illustrating a state where the upper mold MU and the lower mold ML are displaced.
- FIG. 4 is a plan view showing the relative positions of XY between the upper mold MU and the lower mold ML.
- FIG. 4A shows a state where the relative positions of the XY between the upper mold MU and the lower mold ML are shifted. Represents a state in which there is no relative displacement of XY between the upper mold MU and the lower mold ML.
- the servo motors 12a and 13a are servo-free between the curing point indicating that the resin component W at the time of molding is cured and the release point, thereby curing the resin component W.
- the holding force for holding the XY coordinate position of the subsequent table 9 is not applied.
- the molding of the resin component W can be completed in a state where there is no relative displacement of XY between the upper mold MU and the lower mold ML.
- FIG. 5 is a graph showing a PVT characteristic graph.
- the horizontal axis indicates the temperature
- the vertical axis indicates the specific volume.
- the PVT characteristic represents a correlation between pressure (P) -specific volume (product) (V) -temperature (T). Based on the PVT characteristic model, the process of molding the resin part W can be roughly divided into four processes as shown in FIG. Each process will be described.
- the difference between the dimension of the resin part W at the molding completion point S and the dimensions of the upper mold MU and the lower mold ML is the curing shrinkage of the resin part W.
- FIG. 6 is a diagram illustrating changes in XY coordinates of the table 9 and changes in temperature of the upper mold MU and the lower mold ML in the molding process of the resin component W.
- X axis represents the coordinate position on the X axis of the table 9
- Y axis represents the coordinate position on the Y axis of the table 9
- Tempoture represents the upper mold MU and the lower mold ML. Represents the temperature.
- the X-axis coordinate position in FIG. 6 is X-axis position information acquired by the position detection unit 41 from the linear scale 12b, and the Y-axis coordinate position in FIG. 6 is acquired by the position detection unit 41 from the linear scale 13b.
- Y-axis position information. 6 is temperature information of the upper mold MU and the lower mold ML that the temperature control unit 31 acquires from the upper mold holding unit 8 and the table 9.
- the temperature of the upper mold MU and the lower mold ML rises in the temperature raising process.
- the temperatures of the upper mold MU and the lower mold ML are kept constant at about 140 ° C.
- the resin part W starts to be cured from the point L.
- the curing of the resin part W is completed, and the heating of the upper mold MU and the lower mold ML is stopped at the curing point P. Thereby, the resin component W enters a cooling process. And the specific volume of the resin component W decreases.
- a release point R is a point where the positions of the X axis and the Y axis of the table 9 change greatly.
- FIG. 7 is a diagram in which changes in the XY coordinates of the table 9 in the molding process of the resin part W are plotted at regular intervals.
- the horizontal axis represents the coordinate position on the X axis of the table 9
- the vertical axis represents the coordinate position on the Y axis of the table 9.
- the X-axis coordinate position in FIG. 7 is X-axis position information acquired by the position detection unit 41 from the linear scale 12b, and the Y-axis coordinate position in FIG. 7 is acquired by the position detection unit 41 from the linear scale 13b. Y-axis position information.
- the XY coordinate position of the table 9 has moved slightly in the vicinity of the origin from the initial state that is the origin position. In the vicinity of the curing point P, the amount of movement of the XY coordinate position of the table 9 that moves per unit time is smaller than in other periods, and the XY coordinate position of the table 9 shows a substantially constant position.
- the release point R comes, the XY coordinate position of the table 9 has moved greatly in the X minus and Y plus directions.
- the amount of movement per unit time of the XY coordinate position of the table 9 is minimum in the vicinity of the curing point P after the resin component W is cured, and thereafter is maximum at the release point R as a boundary. I understand.
- the cured state of the resin component W can be grasped by looking at the amount of movement per unit time of the XY coordinate position of the table 9.
- FIG. 8 is a diagram illustrating a processing flow of the molding apparatus 1.
- the resin part W that is a molded product is disposed on the lower mold ML by, for example, being applied. In this way, the resin component W is set between the upper mold MU and the lower mold ML that are separated from each other (step S11).
- the motor control unit 21 controls the drive of each servo motor so that the positions of the upper mold MU and the lower mold ML are aligned. Thereby, the position on the XYC axis of the table 9 is adjusted, and the positions of the upper mold MU and the lower mold ML are adjusted (step S12).
- the motor control unit 21 applies a constant current to the servo motors 12a and 13a to apply a holding force to the table 9 in order to fix the position of the table 9.
- the motor control unit 21 drives the servo motor 11 to rotate the ball screw 6 and lowers the upper mold holding unit 8 to lower the upper mold MU (step S13).
- the motor control unit 21 applies a constant current to the servomotor 11 in order to fix the position of the upper mold MU in the Z-axis direction.
- the position of the upper mold MU in the Z-axis direction is fixed, and a constant pressing force is applied to the resin component W and the lower mold ML.
- the temperature control unit 31 heats the upper mold MU and the lower mold ML by driving the heat sources of the upper mold holding unit 8 and the table 9, respectively.
- the temperature control unit 31 acquires temperature information from the heaters of the upper mold holding unit 8 and the table 9, and when the temperature reaches a predetermined constant temperature, the upper mold holding unit and the lower mold ML are set to a constant temperature.
- the driving of the heat sources of 8 and table 9 is controlled.
- the upper mold MU and the lower mold ML are heated to a predetermined temperature and are held constant at the predetermined temperature (step S15).
- the position detection unit 41 determines that the movement amount of the XY coordinate position per unit time of the table 9 is less than or equal to a predetermined value from the XY coordinate position acquired per unit time from the linear scales 12b and 13b. Yes, it is determined whether or not the movement amount per unit time in the table 9 is minimized by determining whether or not the movement amount equal to or less than the predetermined value has continued for a predetermined number of times (step S16).
- step S16 if the position detection part 41 determines with the movement amount per unit time of the table 9 having become the minimum (YES of step S16), the position detection part 41 will give the information to the effect that the hardening point was detected to the motor control part 21. Output to.
- the motor control unit 21 detects information indicating that the curing point has been detected from the position detection unit 41, the holding power of the servo motors 12a and 13a is released, and the XY axes of the table 9 become servo-free (step S17).
- the motor control unit 21 controls the drive of the servo motor 11 to control the upper mold.
- the upper mold MU is raised by raising the holding unit 8 (step S19).
- the molded resin part W is completed, and the resin part W can be taken out from the upper mold MU and the lower mold ML.
- the molding apparatus 1 includes a position detection unit 41 that determines whether or not the resin component W sandwiched between the upper mold MU and the lower mold ML is cured.
- the position detector 41 determines in advance the amount of movement of the XY coordinate position per unit time of the table 9 from the XY coordinate position acquired per unit time from the linear scales 12b and 13b as in step S16. It is determined whether or not the movement amount per unit time in the table 9 has become the minimum by determining whether or not the movement amount that is equal to or less than the predetermined value has continued for a predetermined number of times.
- this position detection part 41 determines with the movement amount per unit time of the table 9 having become the minimum, it determines with the resin component W having hardened, and the hardening point before the resin component W demolds. Is output to the motor control unit 21.
- the motor control unit 21 stops the position of the table 9 on the XY axes by setting the servo motors 12a and 13a to a free state.
- the lower mold ML can be moved in the XY-axis direction, and even if the volume decreases when the resin part W is cured, the lower mold ML is moved by the pressing force of the upper mold MU in the lower Z-axis direction.
- the upper mold MU follows the XY position of the upper mold MU.
- FIG. 9 is a diagram showing the film thickness of the surface after molding of the resin part W, (a) shows the film thickness of the surface of the resin part W when not servo-free, and (b) shows the present embodiment. As described in the embodiment, the film thickness of the surface of the resin component W when the servo is free is shown. Compared with (a) in FIG. 9, it can be seen that (b) in FIG. 9 is uniform with no unevenness of the film thickness on the surface of the resin component W.
- FIG. 10 is a diagram showing surface film thickness variation between a plurality of resin parts when not servo-free, and (a) is a table showing surface film thickness variation between a plurality of resin parts. b) is a graph showing the film thickness variation of the surface between several resin components.
- FIG. 11 is a diagram showing surface film thickness variation between a plurality of resin parts when servo-free as described in the present embodiment, and (a) is a film on the surface between a plurality of resin parts. It is a table
- the horizontal axis represents the wafer number
- the vertical axis represents the eccentricity
- FIG. 12 is a diagram illustrating the configuration of the molding apparatus unit 5 according to the second embodiment.
- the molding device unit 5 includes a molding device 1a and a DSC (Differential Scanning Calorimetry) device 50.
- DSC Different Scanning Calorimetry
- the molding apparatus 1a is different from the molding apparatus 1 in that a control unit 20a is provided instead of the control unit 20 of the molding apparatus 1.
- Other configurations of the molding apparatus 1a are the same as those of the molding apparatus 1.
- the control unit 20a has a configuration in which the control unit 20 includes a transmission / reception unit 23 and a timer 25. Other configurations of the control unit 20a are the same as those of the control unit 20. That is, the control unit 20 a includes a motor control unit 21, a transmission / reception unit 23, a timer 25, a temperature control unit 31, and a position detection unit 41.
- the DSC device 50 includes a transmission / reception unit 51, a storage unit 52, a calorific value calculation unit 53, and a reaction rate calculation unit (curing determination unit) 54.
- the timer 25 starts counting at the same time that the temperature control unit 31 starts heating the heat sources of the upper mold holding unit 8 and the table 9. Then, the timer 25 outputs the elapsed time after the start of counting to the transmission / reception unit 23.
- the temperature control unit 31 outputs temperature information obtained from the upper mold MU and the lower mold ML to the transmission / reception unit 23.
- the transmission / reception unit 23 functions as an interface with the DSC device 50.
- the transmission / reception unit 23 is connected online with a transmission / reception unit 51 which is an interface unit of the DSC device 50.
- the method for connecting the transmission / reception unit 23 and the transmission / reception unit 51 may be either wired or wireless.
- the transmission / reception unit 23 outputs the elapsed time acquired from the timer 25 and the temperature information acquired from the temperature control unit 31 to the transmission / reception unit 51 of the DS device 50. In addition, when the transmission / reception unit 23 acquires the servo-free instruction information output from the transmission / reception unit 51 of the DSC device 50, the transmission / reception unit 23 outputs the acquired servo-free instruction information to the motor control unit 21.
- the motor control unit 21 When the motor control unit 21 acquires the servo-free instruction information from the transmission / reception unit 23, the motor control unit 21 stops the output of the current flowing through the servo motors 12a and 13a and releases the holding force of the table 9 on the XY axes. In other words, servo free.
- the DSC device 50 calculates the heat generation amount of the resin component W and calculates the reaction rate in order to see the cured state of the resin component W molded by the molding device 1a. That is, the cure point before the resin part W is released is detected by calculating the DSC device 50 reaction rate.
- the transmission / reception unit 51 functions as an interface with the control unit 20a.
- the transmission / reception unit 51 acquires the servo-free instruction information from the reaction rate calculation unit 54
- the transmission / reception unit 51 outputs the acquired servo-free instruction information to the transmission / reception unit 23.
- the transmission / reception unit 51 acquires the elapsed time and temperature information from the transmission / reception unit 23
- the transmission / reception unit 51 outputs the acquired elapsed time and temperature information to the heat generation amount calculation unit 53.
- the storage unit 52 stores in advance a calorific value (referred to as a calorific value REF) necessary for curing the resin material of the resin part W.
- the calorific value REF stored in the reaction rate calculator 23 is measured in advance using, for example, the DSC device 50.
- the heat generation amount REF is a heat generation amount considered that the resin material of the resin component W is sufficiently cured, and is a heat generation amount before the resin component W is released from the upper mold MU and the lower mold ML.
- the calorific value calculation unit 53 acquires the elapsed time and temperature information output from the transmission / reception unit 51, the calorific value of the resin component W being molded (referred to as a calorific value SAM) from the acquired elapsed time and temperature information. ) In real time.
- the calorific value calculation unit 53 outputs the calculated calorific value SAM to the reaction rate calculation unit 54.
- the reaction rate calculation unit 53 determines whether or not the resin material of the resin part W being molded is cured. The reaction rate calculation unit 53 determines that the resin is cured when it detects that the amount of heat generated by the resin of the resin part W sandwiched between the upper mold MU and the lower mold ML exceeds a predetermined value.
- the reaction rate calculation unit 53 calculates the reaction rate of the resin part W being molded from the heat generation amount SAM calculated by the heat generation amount calculation unit 53 and the heat generation amount REF stored in the storage unit 52.
- the reaction rate calculator 23 calculates the reaction rate as shown in the following (Equation 1).
- (Reaction rate) (1 ⁇ (Heat generation amount SAM) / (Heat generation amount REF)) ⁇ 100 (Formula 1)
- the reaction rate calculation unit 53 regards the resin part W as cured, and outputs servo-free instruction information, which is information indicating that a curing point has been detected, to the transmission / reception unit 51.
- FIG. 13 is a diagram showing the relationship between the elapsed time from the start of heating to the resin part W and the reaction rate.
- the horizontal axis represents the elapsed time since the temperature control unit 31 started heating the upper mold MU and the lower mold ML, and the vertical axis represents the reaction rate.
- FIG. 20 is a diagram showing the heat generation behavior calculated by the DSC device.
- the temperature profile applied to the upper mold MU and the lower mold ML the elapsed time and temperature of several resin materials (“resin-1,” “resin-2,” “resin-3”), and heat generation The relationship with quantity is shown.
- FIG. 21 shows an example of molding conditions when the reaction rate is 80% or more with a silicone resin.
- FIG. 21 is a diagram illustrating the relationship between the molding conditions of the silicone resin and the reaction rate.
- “Condition” shown in FIG. 21 represents the temperature and time applied during molding, “REF” represents the above (heat generation amount REF), “SAM” represents the above (heat generation amount SAM), and “reaction rate”. Represents the above (reaction rate).
- the calorific value REF becomes 146.1 [J / g].
- the calorific value of 146.1 [J / g] is a calorific value that can be said to be completely cured.
- FIG. 14 is a diagram illustrating a processing flow of the molding apparatus unit 5.
- steps S11 to S14 are processed in the same manner.
- step S14 the lowering of the upper mold MU stops.
- the temperature control unit 31 starts heating the upper mold MU and the lower mold ML by driving the heat sources of the upper mold holding unit 8 and the table 9, respectively. And the temperature control part 31 will output to the transmission / reception part 23, if the temperature information from the heat source of the upper mold
- the timer 25 starts counting the heat sources of the upper mold holding unit 8 and the table 9 of the temperature control unit 31 and starts counting, and outputs the counted elapsed time to the transmission / reception unit 23.
- the transmission / reception unit 23 outputs the temperature information and the elapsed time to the transmission / reception unit 51, whereby the temperature information and the elapsed time are output from the transmission / reception unit 51 to the calorific value calculation unit 53.
- the heat generation amount calculation unit 53 calculates the heat generation amount SAM of the resin part W being molded from the temperature information acquired from the transmission / reception unit 51 and the elapsed time, and outputs the calculated heat generation amount SAM to the reaction rate calculation unit 54.
- reaction rate calculation unit 54 acquires the heat generation amount SAM acquired from the heat generation amount calculation unit 53 and the heat generation amount REF stored in the storage unit 52, the reaction rate calculation unit 54 starts calculating the reaction rate according to the above (Equation 1). (Step S24).
- the temperature control part 31 acquires the temperature information acquired from the heat source of the upper mold
- the driving of the heat sources of the mold holding unit 8 and the table 9 is controlled.
- the upper mold MU and the lower mold ML are heated to a predetermined temperature and are held constant at the predetermined temperature (step S15).
- the heat generation amount SAM of the resin component W calculated by the heat generation amount calculation unit 53 increases, and the reaction rate calculation unit 54 determines whether or not the reaction rate has reached 80% or more, thereby determining the resin. It is determined whether or not the part W has reached the curing point P (step S26).
- the reaction rate calculation unit 54 determines that the reaction rate has reached 80% or more, it outputs servo-free instruction information to the transmission / reception unit 51 as detecting a curing point, and the transmission / reception unit 51 outputs the servo-free instruction information.
- the data is output to the transmission / reception unit 23.
- the transmission / reception unit 23 outputs the servo-free instruction information acquired from the transmission / reception unit 51 to the motor control unit 21. Then, when the motor control unit 21 acquires the servo-free instruction information from the transmission / reception unit 23, the holding power of the servo motors 12a and 13a is released, and the XY axes of the table 9 become servo-free (step S17).
- the molded resin part W is completed. Thereby, the resin component W can be taken out from the upper mold MU and the lower mold ML.
- the DSC apparatus 50 has been described as being provided outside the molding apparatus 1a.
- the present invention is not limited to this, and the DSC apparatus 50 is provided in the control unit 20a of the molding apparatus 1a. Also good.
- FIGS. 15 to 17 a third embodiment of the present invention will be described with reference to FIGS. 15 to 17 as follows.
- members having the same functions as those in the drawings described in the first and second embodiments are denoted by the same reference numerals and description thereof is omitted.
- FIG. 15 is a diagram illustrating a configuration of a molding apparatus 1b according to the third embodiment.
- the molding apparatus 1b differs from the molding apparatus 1 in that a motor control unit 21b is provided instead of the motor control unit 21.
- the other configuration of the molding apparatus 1b is the same as that of the molding apparatus 1.
- the motor control unit 21b includes a current value detection unit (curing determination unit) 22 in the motor control unit 21.
- the current value detection unit 22 determines whether or not the resin component W has reached the curing point P when the resin component W is being molded. The current value detection unit 22 determines whether or not the current value applied to the servo motors 12a and 13a exceeds a predetermined value, so that the resin component W is cured when the resin component W is molded. It is determined whether or not.
- the current value detection unit 22 determines that the current value applied to the servo motors 12a and 13a exceeds a predetermined value, the current value detection unit 22 considers that the resin component W has become a curing point. Then, the holding force of the motor control unit 21 and the servo motors 12a and 13a is released, and the XY axes of the table 9 are servo-free.
- FIG. 16 is a diagram showing loads applied to the motors of the XY axes of the molding apparatus 1.
- Xi represents the load applied to the X-axis servomotor 12a
- Yi represents the load applied to the Y-axis servomotor 13a
- TU represents the temperature of the upper mold MU
- TL Represents the temperature of the lower ML.
- the temperatures of “TU” and “TL” decrease from 140 ° C.
- “Xi” and “Yi” indicate that the direction of the load is reversed and the load is increasing.
- the current value detection unit 22 considers that the resin component W is cured. Then, the motor control unit 21b is servo-free, and as indicated by a point SF in FIG. 16, the current value ⁇ flowing through the servomotors 12a and 13a is substantially zero.
- the position detection unit 41 has the XY coordinate position of the table 9.
- the amount of movement of the XY coordinate position of the table 9 when determining that the amount of movement is minimized and the current value applied to the servo motors 12a and 13a at that time are associated in advance and stored in the current value detection unit 22. You may keep it.
- the current value before entering the mold (current value less than the current value at the time of mold release) may be stored in the current value detector 22 as a preset constant current value.
- the current value applied to the servo motors 12a and 13a when the reaction rate is 80% is stored in the current value detection unit 22 as a predetermined constant current value. It may be left.
- FIG. 17 is a diagram illustrating a processing flow of the molding apparatus 1b. Similarly to FIG. 8, steps S11 to S15 are processed in the same manner. In step S15, the upper mold MU and the lower mold ML are heated to a predetermined temperature and are held constant at the predetermined temperature (step S15). .
- the current value detection unit 22 determines whether or not the current value applied to the servo motors 12a and 13a exceeds a predetermined value (step S36).
- step S36 When the current value detection unit 22 determines that the current value applied to the servo motors 12a and 13a exceeds a predetermined value (YES in step S36), the motor control unit 21 holds the servo motors 12a and 13a. The force is released, and the XY axes of the table 9 are servo-free (step S17).
- the molded resin part W is completed. Thereby, the resin component W can be taken out from the upper mold MU and the lower mold ML.
- FIG. 18 is a diagram illustrating a configuration of a molding apparatus 1c according to the fourth embodiment.
- the molding apparatus 1c is different from the molding apparatus 1 in that the control unit 20 includes a timer (curing determination unit) 25c.
- Other configurations of the molding apparatus 1 c are the same as those of the molding apparatus 1.
- the timer 25 determines whether or not the resin part W has reached the curing point P when the resin part W is being molded.
- the curing point can be determined in advance by the heating temperature and time depending on the resin material. For this reason, if the heating temperature of the resin component W is constant, it is possible to determine whether or not the resin component W has reached the curing point only by looking at the heating time.
- the temperature applied by the temperature control unit 31 and the time required for the resin component W to reach the curing point according to the temperature are stored in association with each other.
- FIG. 19 is a diagram showing the flow of processing of the molding apparatus 1c.
- step S11 to S14 the same processing is performed from step S11 to S14.
- the temperature control unit 31 next drives the heat sources of the upper mold holding unit 8 and the table 9 respectively.
- heating of the upper mold MU and the lower mold ML is started and the timer 25c starts counting (step S44).
- the temperature control part 31 acquires the temperature information from the heat source of the upper mold
- the driving of the heat sources of the holding unit 8 and the table 9 is controlled.
- the upper mold MU and the lower mold ML are heated to a predetermined temperature and are held constant at the predetermined temperature (step S15).
- the curing of the resin part W sandwiched between the upper mold MU and the lower mold ML proceeds, and the timer 25c determines whether or not the resin part W has reached the curing point P.
- the timer 25c determines whether or not a predetermined time set in advance has elapsed since the heating of the upper mold MU and the lower mold ML was started (step S46).
- the timer 25c determines that a predetermined time has elapsed after the heating of the mold MU and the lower mold ML is started, the timer 25c displays information indicating that the curing point has been detected as a motor control unit. To 21.
- the motor control unit 21 detects information indicating that the curing point has been detected from the timer 25c, the holding power of the servo motors 12a and 13a is released, and the XY axes of the table 9 become servo-free (step S17).
- the molded resin part W is completed. Thereby, the resin component W can be taken out from the upper mold MU and the lower mold ML.
- a molding apparatus is a molding apparatus that includes an upper mold and a lower mold, which are a pair of molds, and molds the resin by sandwiching a resin between the upper mold and the lower mold.
- a first drive unit for moving in a first direction approaching the lower mold to press the resin, and a position of the lower mold capable of moving in a second direction intersecting the first direction The second drive unit stops holding the position of the lower mold before the resin sandwiched between the upper mold and the lower mold is released. .
- a molding method is a molding method in which a resin is sandwiched between an upper mold and a lower mold, which are a pair of molds, and the first mold approaches the lower mold.
- the resin is sandwiched between the upper mold and the lower mold, holding the position of the lower mold capable of moving in the second direction crossing the first direction, and pressing the resin. Before releasing the mold, the holding of the position of the lower mold is stopped.
- the first driving unit for moving the upper mold in the first direction approaching the lower mold to press the resin, and the second direction intersecting the first direction. Since the second drive unit that holds the position of the movable lower mold is provided, the relative positions of the upper mold and the lower mold can be fixed and the resin can be cured. The second driving unit stops holding the position of the lower mold before the resin sandwiched between the upper mold and the lower mold is released.
- the lower mold can be moved in the second direction, and the volume is reduced when the resin is cured. Even so, the lower mold follows the position of the upper mold by the pressing force of the upper mold in the first direction. Thereby, the position shift accompanying the volume reduction at the time of the said resin hardening
- a curing determination unit that determines whether or not the resin sandwiched between the upper mold and the lower mold is cured, and a table on which the lower mold is placed, A motor for moving the table in the second direction, and the curing determination unit detects a holding force by which the motor holds the position of the lower mold, and after the start of curing of the resin, the holding When it is detected that the force has reached a predetermined value, it is determined that the resin sandwiched between the upper mold and the lower mold is cured, and the second driving unit stops holding the position of the lower mold. Also good.
- the molding apparatus includes a curing determination unit that determines whether or not the resin sandwiched between the upper mold and the lower mold is cured, and the curing determination unit cures the resin When it is detected that a predetermined time has elapsed after the start, it is determined that the resin sandwiched between the upper mold and the lower mold is cured, and the second driving unit stops holding the position of the lower mold. You may do it.
- the molding apparatus unit includes the molding apparatus and a curing determination unit that determines whether or not the resin sandwiched between the upper mold and the lower mold is cured, and the curing determination is performed.
- the unit determines that the resin sandwiched between the upper mold and the lower mold is cured, and The second drive unit may stop holding the position of the lower mold.
- the second holding unit stops holding the position of the lower mold. Thereby, the position shift accompanying the volume reduction at the time of the said resin hardening
- curing can be prevented, and a molded article can be obtained.
- a curing determination unit that determines whether or not the resin sandwiched between the upper mold and the lower mold is cured, and a table on which the lower mold is placed.
- the curing determination unit detects the position of the table in the second direction, and detects that the amount of movement of the table per unit time has become minimum after the resin starts curing, And the resin sandwiched between the lower mold and the lower mold may be determined to be cured. Also by this, the position shift accompanying the volume reduction at the time of the said resin hardening
- the present invention can be applied not only to molding apparatuses and molding methods that require fine processing accuracy because the XY drive shaft during resin curing can be controlled, but also to a wide range of general molding apparatuses and molding methods.
- Molding device unit 1, 1a, 1b, 1c Molding device 5 Molding device unit 6 Ball screw 8 Upper mold holding portion 9 Table 11 Servo motor (first drive portion) 12a / 13a Servo motor (second drive unit) 12b / 13b Linear scale 15 Load cell 20 Control unit 21 Motor control unit 21b Motor control unit 22 Current value detection unit (curing determination unit) 25 timer 25c timer (curing determination unit) 31 Temperature control unit 41 Position detection unit (curing determination unit) 50 DSC device 51 Transmission / reception unit 52 Storage unit 53 Heat generation amount calculation unit 54 Reaction rate calculation unit (curing determination unit) ML Lower mold MU Upper mold P Curing point R Release point W Resin parts
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Abstract
Description
(成型装置1の構成)
図1を用いて成型装置1の構成について説明する。図1は、本実施の形態に係る成型装置1の構成を表す図である。
次に、図2を用いて成型装置1の動作の概略について説明する。
次に、図5を用いてPVT特性について説明する。図5はPVT特性のグラフを示す図である。図5では、横軸は温度を示し、縦軸は比容積を示している。
上型MUが下降し、樹脂部品Wが上型MUと下型MLとに挟まれ、上型MUの押圧力が最大となると、次に、上型MU及び下型MLの温度が上昇する。すると、樹脂部品Wは昇温に伴い熱膨張していく。そして、樹脂部品Wはゲル化点Gの手前になるとゲル化前の硬化反応に伴う硬化収縮が生じる。
ゲル化点Gからさらに樹脂部品Wを昇温させると、樹脂部品Wが上型MU及び下型MLの内部に密着し、樹脂部品Wの面内方向の寸法変化が規制される。また、樹脂部品Wは、硬化反応に伴い急激に硬化収縮する。
硬化時間に応じて、樹脂部品Wの硬化反応に伴う硬化収縮が停止し、応力緩和が起こる。この硬化点Pでは、ほぼ樹脂部品Wの熱硬化は完了している。このため、樹脂部品Wが、この硬化点Pとなると、上型MU及び下型MLの加熱を停止する。これにより、この硬化点P以降は樹脂部品Wの冷却プロセスに入る。
硬化点P以降、冷却に伴い樹脂部品Wの比容積は低下する。しかし、樹脂部品Wは上型MU及び下型MLの内部でそれぞれと密着しているため、上型MU及び下型MLにより寸法変化が規制される。
さらに、冷却されている樹脂部品Wは、離型点Rで、密着していた上型MU及び下型MLの内部から離間し、樹脂部品W内に残存する応力を開放する形で、樹脂部品Wの寸法の急激な変化が生じる。そして、冷却によりさらに、樹脂部品Wは収縮する。そして、樹脂部品Wの温度が初期状態の点Lでの温度となると、成形完了点Sとなる。成形完了点Sとなると、樹脂部品Wの成形は完了し、上型保持部8を上昇させることで、樹脂部品Wから上型MUを離間させる。これにより、成形された樹脂部品Wを得ることができる。
図6は、樹脂部品Wの成形プロセスにおけるテーブル9のXY座標の変化及び上型MU及び下型MLの温度変化の様子を表す図である。
次に、図8等を用いて、成型装置1の処理の流れについて説明する。図8は、成型装置1の処理の流れを表す図である。
次に、図12~図14、図20を用いて、本発明の第2の実施形態について説明すれば、以下のとおりである。なお、説明の便宜上、前記実施形態にて説明した図面と同じ機能を有する部材については、同じ符号を付記し、その説明を省略する。
(反応率)=(1-(発熱量SAM)/(発熱量REF))×100 (式1)
そして、反応率演算部53は、反応率が80%以上となると、樹脂部品Wは硬化したと見なし、硬化点を検出した旨の情報であるサーボフリー指示情報を送受信部51に出力する。
次に、図15~図17を用いて、本発明の第3の実施形態について説明すれば、以下のとおりである。なお、説明の便宜上、前記実施形態1、2にて説明した図面と同じ機能を有する部材については、同じ符号を付記し、その説明を省略する。
次に、図18、図19を用いて、本発明の第4の実施形態について説明すれば、以下のとおりである。なお、説明の便宜上、前記実施形態1~3にて説明した図面と同じ機能を有する部材については、同じ符号を付記し、その説明を省略する。
本発明の一態様に係る成型装置は、一対の金型である上型と下型を備え、当該上型及び下型の間に樹脂を挟んで成形する成型装置であって、上記上型を上記下型に近づく第1の方向に移動させて上記樹脂を押圧させるための第1の駆動部と、上記第1の方向と交差する第2の方向への移動が可能な上記下型の位置を保持する第2の駆動部とを備え、上記第2の駆動部は、上記上型と下型とに挟まれた樹脂が離型をする前に、上記下型の位置の保持を停止する。
5 成型装置ユニット
6 ボールネジ
8 上型保持部
9 テーブル
11 サーボモータ(第1の駆動部)
12a・13a サーボモータ(第2の駆動部)
12b・13b リニアスケール
15 ロードセル
20 制御部
21 モータ制御部
21b モータ制御部
22 電流値検出部(硬化判定部)
25 タイマー
25cタイマー(硬化判定部)
31 温度制御部
41 位置検出部(硬化判定部)
50 DSC装置
51 送受信部
52 記憶部
53 発熱量演算部
54 反応率演算部(硬化判定部)
ML 下型
MU 上型
P 硬化点
R 離型点
W 樹脂部品
Claims (5)
- 一対の金型である上型と下型を備え、当該上型及び下型の間に樹脂を挟んで成形する成型装置であって、
上記上型を上記下型に近づく第1の方向に移動させて上記樹脂を押圧させるための第1の駆動部と、
上記第1の方向と交差する第2の方向への移動が可能な上記下型の位置を保持する第2の駆動部とを備え、
上記第2の駆動部は、上記上型と下型とに挟まれた樹脂が離型をする前に、上記下型の位置の保持を停止することを特徴とする成型装置。 - 上記上型と下型とに挟まれた樹脂が硬化したか否かを判定する硬化判定部と、
上記下型が載置されたテーブルと、
上記テーブルを上記第2の方向へ移動させるためのモータとを備え、
上記硬化判定部は、上記モータが上記下型の位置を保持する保持力を検出し、上記樹脂の硬化開始後、上記保持力が所定の値となったこと検出すると、上記上型と下型とに挟まれた樹脂が硬化したと判定し、上記第2の駆動部は、上記下型の位置の保持を停止することを特徴とする請求項1に記載の成型装置。 - 上記上型と下型とに挟まれた樹脂が硬化したか否かを判定する硬化判定部を備え、
上記硬化判定部は、上記樹脂の硬化開始後、所定の時間が経過したこと検出すると、上記上型と下型とに挟まれた樹脂が硬化したと判定し、上記第2の駆動部は、上記下型の位置の保持を停止することを特徴とする請求項1に記載の成型装置。 - 請求項1に記載の成型装置と、
上記上型と下型とに挟まれた樹脂が硬化したか否かを判定する硬化判定部とを備え、
上記硬化判定部は、上記上型と下型とに挟まれた樹脂の発熱量が所定の値を超えたことを検出すると、上記上型と下型とに挟まれた樹脂が硬化したと判定し、上記第2の駆動部は、上記下型の位置の保持を停止することを特徴とする成型装置ユニット。 - 一対の金型である上型と下型の間に樹脂を挟んで成形する成型方法であって、
上記上型を上記下型に近づく第1の方向に移動させて上記樹脂を押圧し、
上記第1の方向と交差する第2の方向への移動が可能な上記下型の位置を保持し、
上記上型と下型とに挟まれた樹脂が離型をする前に、上記下型の位置の保持を停止することを特徴とする成型方法。
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CN201380004210.1A CN103958149B (zh) | 2012-10-15 | 2013-10-03 | 成型装置、成型装置单元以及成形方法 |
JP2014509020A JP5623673B2 (ja) | 2012-10-15 | 2013-10-03 | 成型装置、成型装置ユニット及び成形方法 |
US14/353,437 US20150224686A1 (en) | 2012-10-15 | 2013-10-03 | Molding apparatus, molding apparatus unit, and molding method |
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JP4213051B2 (ja) | 2004-01-26 | 2009-01-21 | アルプス電気株式会社 | 射出成形機の型締め装置 |
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EP1849590B1 (de) | 2006-04-29 | 2013-05-15 | Fette GmbH | Presse |
CN101808795B (zh) * | 2007-10-05 | 2013-08-14 | 日本碍子株式会社 | 成型模具及成型方法 |
CN201186473Y (zh) * | 2008-01-30 | 2009-01-28 | 万子潜 | 一种模内热转印自动送膜机 |
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JPH04179517A (ja) * | 1990-11-13 | 1992-06-26 | Kawasaki Yukou Kk | 複合樹脂等のプレス成形品の良否判定方法 |
JP2007260791A (ja) * | 2006-03-27 | 2007-10-11 | Toshiba Mach Co Ltd | 転写装置および転写方法 |
JP2012153080A (ja) * | 2011-01-28 | 2012-08-16 | Toshiba Mach Co Ltd | 成形材料の成形装置および成形材料の成形方法 |
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US20160297115A1 (en) | 2016-10-13 |
TW201420301A (zh) | 2014-06-01 |
US9987774B2 (en) | 2018-06-05 |
JPWO2014061457A1 (ja) | 2016-09-05 |
US20150224686A1 (en) | 2015-08-13 |
TWI505924B (zh) | 2015-11-01 |
JP5623673B2 (ja) | 2014-11-12 |
CN103958149B (zh) | 2015-07-08 |
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