WO2004078452A1 - 転写成形方法及び転写成形装置 - Google Patents
転写成形方法及び転写成形装置 Download PDFInfo
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- WO2004078452A1 WO2004078452A1 PCT/JP2004/002628 JP2004002628W WO2004078452A1 WO 2004078452 A1 WO2004078452 A1 WO 2004078452A1 JP 2004002628 W JP2004002628 W JP 2004002628W WO 2004078452 A1 WO2004078452 A1 WO 2004078452A1
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- Prior art keywords
- transfer
- film
- transfer film
- mark
- value
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Classifications
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7686—Measuring, controlling or regulating the ejected articles, e.g. weight control
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14172—Positioning or centering articles in the mould using light to define the position of the insert
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76083—Position
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/761—Dimensions, e.g. thickness
- B29C2945/76103—Dimensions, e.g. thickness shrinkage, dilation, dimensional change, warpage
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/76224—Closure or clamping unit
- B29C2945/76227—Closure or clamping unit mould platen
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/7629—Moulded articles
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76451—Measurement means
- B29C2945/76461—Optical, e.g. laser
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76505—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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76568—Position
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
- B29C45/14016—Intermittently feeding endless articles, e.g. transfer films, to the mould
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14827—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using a transfer foil detachable from the insert
Definitions
- the present invention relates to a transfer molding method and a transfer molding apparatus for sandwiching a transfer film between dies and transferring a pattern on the transfer film to a molded product simultaneously with molding.
- the transfer molding apparatus includes a movable mold provided on a movable platen, a fixed mold provided on a fixed platen, an injection nozzle, a transfer film, and a transfer film mounted on the movable plate in the width direction of the transfer film.
- the position of the transfer film is detected by the position detection device and stopped at the transfer position, and then the mold is sandwiched with the transfer film sandwiched.
- the molten resin is injected from the injection nozzle into the cavity formed by closing the mold, and the pattern on the transfer film is transferred at the same time as the molding, and a molded product in which the pattern of the transfer film is transferred to a predetermined position is formed.
- the transfer film is positioned at the transfer position as follows.
- the position detecting device is constituted by a longitudinal sensor which is an optical sensor for detecting the longitudinal mark of the transfer film, and a first and second width sensor which is an optical sensor for detecting the width mark.
- the transfer film is moved in the longitudinal direction until the longitudinal sensor detects the longitudinal mark, and when the longitudinal sensor detects the longitudinal mark, the transfer film by the film feeding device and the film winding device is used. Stop moving.
- the first width direction sensor marks the width direction mark on the transfer film.
- the film feeding device is moved in the width direction of the transfer film until it is detected, and the film winding device is moved in the width direction of the transfer film until the second width sensor detects the width mark.
- the first and second width sensors detect the width mark, the film feeding device and the film winding device are stopped.
- the transfer film is moved to a transfer position by moving the mold in an open state, and then the transfer film is sandwiched in a mold closed state, and the molten resin is injected into the cavity and molded.
- the transfer / molding step of transferring the design of the transfer film to a predetermined position on the molded product is repeated.
- the transfer film is positioned at the transfer position so that the design of the transfer film faces a predetermined position of the mold (molding portion). By repeating the molding process, the position of the design transferred to the molded product may shift.
- the transfer film when the transfer film is wrinkled during the transfer molding, the above-described pattern shift occurs.
- the wrinkles of the transfer film are such that when the transfer film is sandwiched between the molds, the shape of the molded product is convexly curved to the surface thereof, or a plurality of molded portions are formed on the mold. In particular, it occurs greatly.
- the position of the transfer film is aligned with reference to the position of the mark for the longitudinal direction and the mark for the width direction attached to the transfer film. By doing so, there was a problem that the position of the transferred symbol was shifted. These misregistrations can be corrected by capturing the transfer position of the transfer film. However, it was necessary to interrupt transfer molding and reposition the transfer film.
- the present invention has been made in view of the above-described problems, and has as its object to automatically correct the position of a transfer film when a transferred product is a molded product in which the position of the transferred design is displaced, and Another object of the present invention is to provide a transfer molding method and a transfer molding apparatus capable of forming a molded product on which a pattern is transferred. Disclosure of the invention The present invention is configured as follows to achieve the above object.
- a transfer film having at least one of a pattern, a longitudinal mark and a width mark is moved in the longitudinal direction to a transfer position, and the transfer film is fixed.
- Transfer molding is performed in which the molten resin is injected into a cavity formed between the closed molds while being sandwiched between the mold and the movable mold, and simultaneously transferring the pattern to a molded product while molding.
- the first digital value is obtained by detecting the misalignment dimension and misalignment direction of the pattern of the transfer molded article,
- the deviation amount of the mark is obtained as a second digital value
- a transfer molding method for performing correction by moving the transfer film based on the obtained value and direction to be corrected is a transfer molding method for performing correction by moving the transfer film based on the obtained value and direction to be corrected.
- the second digital value is detected using a laser line sensor, and a ratio at which the mark of the transfer film at the transfer position shields the laser line sensor. Is obtained as position information of the transfer film at the transfer position,
- the transfer molding method according to the first aspect wherein the value and the direction to be captured are obtained as a ratio at which the mark of the transfer film at a position where the mark should exist after the correction blocks the laser line sensor.
- the first digital value captures an image of the molded article!
- the transfer molding method according to the first aspect wherein a positional shift amount and a positional shift direction between a position of the symbol transferred to the molded article and a reference position where the symbol should be originally located are obtained based on the image.
- the transfer film is further moved in the longitudinal direction to another transfer position, and the transfer film is moved by the fixed mold and the movable mold. Injection of the molten resin into the cavities formed between the molds that are closed with each other in a sandwiched state, and simultaneously with molding, transfer molding is performed to transfer the symbol to another molded product,
- the third digital value is obtained by detecting the misalignment dimension and misalignment direction of the pattern of another transfer molded product,
- the amount of deviation of the mark is obtained as a fourth digital value
- a transfer molding method in which the transfer film is moved and the correction is repeated based on the obtained value and direction to be corrected until the value falls within an allowable range. .
- a fixed mold and a movable mold arranged so as to be able to be brought into a mold closed state and a mold open state, and a design and a longitudinal direction at a transfer position and transferred to a molded product
- An injection nozzle for injecting a molten resin into a cavity formed between the fixed mold and the movable mold closed with a transfer film having at least one of a mark and a width direction mark interposed therebetween;
- a transfer molding part for transferring the above-mentioned design to a molded product at the same time as molding;
- the transfer film is moved in the longitudinal direction with respect to the mold parting surface before the transfer molding by the transfer molding unit, and the transfer film is moved in at least one of the longitudinal direction and the width direction at the time of position correction.
- a film moving unit ;
- a symbol detecting unit for detecting a positional deviation dimension and a positional deviation direction of a symbol of a transferred molded product to obtain a first digital value
- a mark detection unit that obtains the amount of deviation of the mark as a second digital value, wherein at the time of the position correction, the transfer film is the transfer film of the transfer film obtained from the first and second digital values.
- a transfer molding apparatus that is moved in at least one of a longitudinal direction and a width direction by the film moving section based on a value and a direction to be corrected with respect to a transfer position.
- the film moving unit includes: a film delivery device that delivers the transfer film between the fixed mold and the movable mold in a longitudinal direction thereof; and a film delivery device that delivers the transfer film from the film delivery device.
- a film delivery device that delivers the transfer film between the fixed mold and the movable mold in a longitudinal direction thereof
- a film delivery device that delivers the transfer film from the film delivery device.
- a film take-up device To take up the transferred transfer film A film take-up device; a first moving mechanism that movably supports the film feeding device in the width direction of the transfer film; and a support device that supports the film take-up device movably in the width direction of the transfer film.
- a transfer molding apparatus according to a fifth aspect, comprising: a second moving mechanism;
- the mark detection unit includes a laser line sensor, detects a ratio of a mark of the transfer film at the transfer position blocking the laser line sensor, and detects the mark at the transfer position. Calculating the second digital value as position information of the transfer film;
- the transfer molding apparatus according to a fifth aspect, wherein the correction threshold value and the direction are obtained as a ratio of the mark of the transfer film at the position to be present after the correction blocking the laser line sensor.
- the symbol detection unit captures an image of the molded article, and calculates a positional deviation amount between a position of the symbol transferred to the molded article and a reference position where the symbol should be.
- a transfer molding apparatus according to a fifth aspect, wherein the first digital value is obtained based on the image in the direction of displacement is provided.
- the transfer molding section moves the transfer film in a longitudinal direction to another transfer position, and sets the transfer film to the fixed mold and the fixed mold. Mutually sandwiched between movable molds! / Injection of the molten resin into the cavity formed between the molds closed at the end of the mold and transferring the symbol to another molded product simultaneously with molding.
- the symbol detection unit is configured to detect a displacement dimension and a shift direction of a symbol of another transfer-molded product to obtain a third digital value
- the mark detection unit is configured to determine the amount of deviation of the mark as a fourth digital value
- the transfer film is transferred by the film moving unit based on a value and a direction to be corrected with respect to a transfer position of the transfer film obtained from the third and fourth digital values.
- a transfer molding apparatus that is one of the fifth to eighth aspects that is repeatedly moved for correction until the value falls within an allowable range. According to the tenth aspect of the present invention, a plurality of first digital values obtained by detecting the misalignment dimension and misalignment direction by the symbol detecting unit a plurality of times are stored.
- An average value calculation unit that calculates an average value of the plurality of first digital values stored in the storage unit
- a transfer molding apparatus wherein the transfer film is moved based on a value and a direction to be corrected with respect to a transfer position of the transfer film obtained from the average digital value and a second digital value.
- the transfer film when the pattern of the molded product is misaligned, the transfer film is automatically moved by the misalignment dimension in the direction opposite to the direction of the misalignment. Is a pattern is transferred to a predetermined position.
- the transferred pattern becomes a molded product in which the position is shifted
- the position of the transfer film is automatically corrected, and the molded product in which the design is transferred to a predetermined position can be obtained. High accuracy can be maintained for the position of the design transferred to the molded product without interrupting the molding.
- the position deviation of the transfer film is detected again after the position of the transfer film is corrected, and when the position deviation exceeds the allowable range, the position correction is repeated, so that the position of the transfer film is within the allowable range. Can be corrected. Therefore, the pattern can be transferred to a position within the allowable range of the molded product by performing the transfer molding after the position correction.
- the transfer position of the pattern does not fluctuate greatly depending on the molded product formed by continuous transfer molding
- the first digital value is stored and the transfer film is determined based on the average value.
- FIG. 1 is a side view of a transfer molding apparatus according to a first embodiment of the present invention
- FIG. 2 is a cross-sectional view taken along line AA of FIG.
- FIG. 3A is a cross-sectional view illustrating a configuration of a transfer film used in the transfer molding apparatus of FIG. 1,
- FIG. 3B is a schematic perspective view showing the positional relationship between the transfer film used in the transfer molding apparatus of FIG. 1 and the sensor,
- FIGS. 4A, 4B, and 4C are explanatory diagrams of the detection of the longitudinal position performed by the transfer molding apparatus of FIG.
- FIGS. 5A, 5B, and 5C are diagrams for explaining the width direction position detection performed by the transfer molding apparatus of FIG.
- FIGS. 6A, 6B, and 6C are explanatory diagrams of the misregistration of the pattern of the molded product formed by the transfer molding apparatus of FIG.
- FIG. 7 is a sectional view taken along line BB of FIG.
- FIG. 8 is a detailed cross-sectional view taken along the line C--C of FIG.
- FIG. 9 is a perspective view of a film winding mechanism of the transfer molding apparatus of FIG. 1, and FIG. 10 is an enlarged view of a sensor mounting portion of the transfer molding apparatus of FIG.
- FIG. 11 is a perspective view of a mounting portion of the first width direction sensor 1 of the transfer molding device of FIG. 1, and FIG. 12 is a control circuit diagram of the transfer molding device of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- the transfer molding apparatus is configured to inject molten resin into a cavity between the fixed mold 2 attached to the fixed platen 1 and the movable mold 4 attached to the movable platen 3 and both molds. It has an injection-molded part 100 constituted by an outlet nozzle 5.
- the fixed platen 1 is fixed to the gantry 6, and the movable platen 3 is guided by four tie bars 7 fixed to the fixed platen 1, and moves so as to be able to be separated from and attached to the fixed platen 1.
- the parting surface 2a of the fixed mold 2 and the parting surface 4a of the movable mold 4 are pressed against each other, and the molding part of the mold (movable part of the molding part 2b of the fixed mold 2)
- the mold is in a closed state in which the cavity is formed in the molding section 4b) of the mold 4, and in a mold open state in which the parting surfaces 2a, 4a are separated.
- the injection molding section 100 basically uses a fixed mold 2 and a movable mold 4 to form a cavity with the two molds.
- additional components such as an intermediate plate are used. It can also be used.
- the movable platen 3 is provided with a film feeding device 10 and a film winding device 11.
- the film feeding device 10 and the film winding device 11 are used for moving the transfer film 20 with respect to the parting surface 4a of the movable mold 4 (moving in the longitudinal direction of the transfer film 20). Construct a moving unit.
- the transfer film 20 is moved so as to be separated from and parallel to the parting surface 4 a of the movable mold 4.
- the film feeding device 10 and the film winding device 11 are respectively moved by the first moving mechanism 12 and the second moving mechanism 13 in a direction perpendicular to the moving direction of the movable mold 4 (the width of the transfer film 20).
- Direction the film feeder 10 and the film take-up device 11 are started in the width direction of the film by the first moving mechanism 12 and the second moving mechanism 13 to move the transfer film 20 in the width direction.
- the moving part of the film to be moved is constituted.
- a film feeder 10 is mounted on the upper part of the movable platen 3, and the transfer film 20 is moved in the width direction by the first moving mechanism 12 described above.
- the film winding device 11 includes a film tensioning mechanism 14 attached to the lower part of the movable platen 3 and a film winding mechanism 15 attached to the gantry 6.
- the film tensioning mechanism 14 includes the second moving mechanism 1.
- step 3 the transfer finolem 20 is moved in the width direction.
- the mounting position of the film feeder 10 and the film take-up device 11 is not limited to this, and the film feeder 10 is attached to the lower portion or the left-right portion of the movable platen 3, and the film take-up device 11
- the film feeder 10 and the film winding device 11 may be attached to the gantry 6 or the fixed platen 1.
- the film moving unit applies the transfer finolem 20 to the mold parting surface (parting surface 2a of fixed mold 2 or parting surface 4a of movable mold 4) before performing transfer molding.
- the transfer film 20 can be moved in the longitudinal direction, and preferably, the transfer film 20 can also be moved in the width direction. At the time of position correction, any configuration may be used as long as the transfer film 20 is moved in at least one of the longitudinal direction and the width direction.
- the transfer film 20 has a pattern 21 provided on the surface of the base film 20a at intervals in the longitudinal direction.
- the pattern 21 is peeled off from the base film 20a at the time of molding in the above-described injection molding section 100 and is transferred to a molded product. Therefore, the transfer film 20 is placed on the base film 20a.
- a release protection layer 20b is provided, and a pattern ink layer 20c constituting the pattern 21 is provided thereon.
- An adhesive layer 20 d is provided on the pattern ink layer 20 c, and comes into contact with and adheres to the molten resin at the time of injection molding, and the pattern ink layer 20 c forms the release protection layer 2. It is peeled off from the base film together with 0b and transferred to the molded product.
- the design 21 provided on the transfer film 20 is not limited to the print m, and the design ink layer 20c may be constituted by a metal deposition layer.
- the design ink layer 20c may be constituted by patterns, characters, symbols, etc. used in conventional transfer films, such as a combination of a metal deposition layer and printing. Further, as shown in FIG. 3B, the position of the transfer film 20 when the pattern 21 is transferred to the molded article at the same time as the molding, that is, the transfer of the transfer film 20 is performed. In order to detect the position, a longitudinal mark 22 and a width mark 23 are provided.
- the longitudinal mark 22 (width 3 mm) of the transfer film is placed on one side in the width direction of the transfer film 20 with a space in the longitudinal direction of the transfer film.
- the width direction mark 23 (light receiving width 3 mm) is provided continuously on the other side in the width direction of the transfer film in the longitudinal direction.
- the transfer film 20 is translucent and the marks 22 and 23 are non-translucent, but the marks 22 and 23 may be configured to be semi-translucent.
- the transfer film 20 may be non-translucent or semi-translucent, and the marks 22 and 23 may be translucent.
- this transfer film position detecting device includes a longitudinal direction sensor 30 provided on a mold, and a first ′ second width direction sensor 31, 32. As shown in FIG. 3B, marks 22 and 23 of the transfer film are detected and used to detect the position of the transfer film.
- a mold for example, a movable mold 4 is provided with a longitudinal sensor 30 and a width sensor, for example, first and twenty-first corner direction sensors 31, 32 near the movable mold 4. . It is not always necessary to provide two width direction sensors, and one or three or more width sensors may be provided.
- the longitudinal direction sensor 30 is the movable mold 4 on one side in the width direction near the top
- the first width direction sensor 1 3 1 is the movable mold 4 near the top
- the second width direction sensor 3 2 is the movable mold 4
- Each is attached to the other side in the width direction closer to the lower part.
- the longitudinal direction sensor 30 and the first and second width direction sensors 31 and 32 detect the longitudinal direction mark 22 and the width direction mark 23 of the transfer film 20, and also check the respective marks. This is to detect the shift amount.
- each sensor is constituted by a laser one-line sensor (light receiving width: 3 mm), and includes a light emitting device 33 and a light receiving device 34.
- the light emitter 33 and the light receiver 34 are located on both sides in the thickness direction of the transfer film 20 as shown in FIG. 3, and the light of the light emitter 33 is transmitted through the transfer film 20 and the light receiver 3 is received. 4 receives light.
- the longitudinal direction sensor 30 is configured such that its extending direction is the longitudinal direction of the transfer film, and the light intensity (the size in the longitudinal direction of the film) of the light emitter 33 is the longitudinal direction. Mark 22 Same as the size of the film (size in the longitudinal direction of the film)
- the first '21st distance sensor 31, 32 is configured so that its extending direction is the width direction of the transfer film, and the light intensity (width ) Is substantially the same as the size (width) of the width direction mark 23.
- the light 33 a of the light emitter 33 is moved relative to the longitudinal direction mark 22, as shown in FIG. 4B. Since the light receiver 34 receives an amount of light corresponding to the shift amount, the ratio of the mark blocking the light receiver 34 can be detected based on the received light amount.
- the light 33 a of the light emitter 33 shifts downward with respect to the longitudinal mark 22.
- photoreceiver 3 4 since the light amount of received light commensurate with the amount of deviation S 2, can be detected ratio mark the amount of received light to shield the light receiver 3 4.
- the longitudinal position of the transfer film can be detected by the ratio of the mark 22 blocking the light receiver 34.
- the shift direction of the transfer film can be detected by taking the history of the shielding rate of the light receiver 34.
- the longitudinal direction sensor 30 constitutes a mark detecting unit that detects the transfer position (deviation amount) in the longitudinal direction of the transfer film 20 as a digital value.
- the ⁇ ⁇ direction mark 23 is shown in FIG. 5A when the width direction mark 23 coincides with the first width direction sensor 13 1 when the transfer film 20 is at the transfer position.
- the light 33a of the light emitter 33 is completely blocked by the width direction mark 23, and the light reception amount of the light receiver 34 is zero.
- the width direction mark 23 is shifted to one side in the width direction from the first direction sensor 31, as shown in FIG. 5B, the light 33 a of the light emitting device 33 becomes the width direction mark 23. Since the light receiver 34 receives a light amount corresponding to the shift amount S3, the ratio of the mark blocking the light receiver 34 can be detected based on the received light amount. On the other hand, when the width direction mark 23 is shifted to the other side in the width direction from the first ⁇ 3 ⁇ 4 direction sensor 31 when the transfer film 20 is at the transfer position, as shown in FIG.
- the width direction position of the transfer film can be detected by the ratio of the mark 23 blocking the light receiver 34. Also, when the transfer film moves in the width direction, the shift direction of the transfer film can be detected by taking the history of the shielding ratio of the light receiver 34.
- the positional relationship between the second width direction sensor 32 and the width direction mark 23 is the same as described above, and the position of the width direction mark 23 can be measured by the second ⁇ direction sensor 32.
- the width direction sensors 31 and 32 are mark detection units that detect the transfer position (deviation amount) in the width direction of the transfer film as a digital value.
- the transfer molding method of the present invention includes a transfer molding step, a molded article inspection step, and a transfer film position correction step.
- the transfer step is performed continuously by continuously transferring a transfer film in which pictures 21 are arranged at an interval between the fixed mold 2 and the movable mold 4 as conventionally performed.
- the transfer film 20 is moved while the fixed mold 2 and the movable mold 4 are opened, and the pattern 21 is transferred to the mold section of the mold, for example, the mold section 2b facing the mold section 2b of the fixed mold 2.
- the first step to be the position, and after the first step, the movable mold 4 is moved to put the transfer film 20 in the mold closed state, and the molten resin is injected into the cavity a ⁇ to form the mold.
- the transfer film 20 is positioned and set in advance in the width direction, and the transfer amount of the transfer film by the film moving unit is set in advance. It only moves intermittently in the longitudinal direction. This positioning is performed by detecting the positions of the marks 22 and 23 provided on the transfer film by the sensors 30, 31 and 32, as described later.
- the molded article inspection step is performed at any time in a step of detecting a positional deviation dimension and a positional deviation direction of a symbol of the molded article transferred and molded in the transfer molding step. If there is a displacement, the transfer film position correction step is performed. If there is no displacement, the above-described transfer molding step is continuously performed without performing the transfer film position correction step.
- the misalignment dimension of the symbol on the molded product is the dimension in which the symbol transferred on the molded product is displaced from the originally provided predetermined position, and the symbol is displaced from the prescribed position in the misalignment direction. Direction.
- the positional displacement dimension in the longitudinal direction 1 ⁇ And also detect that it is shifted toward the front in the longitudinal direction (position shift direction).
- This longitudinal direction is the longitudinal direction of the transfer film 20.
- the positional shift dimension H! detects that it is shifted to one side in the width direction (position shift direction).
- This width direction is the width direction of the transfer film 20.
- the displacement H in the width direction is measured at the front portion 21a in the long direction and the rear portion 21b in the long direction of the pattern 21 transferred in FIG. 6B.
- the positional deviation dimension H 1 in the width direction By measuring the position deviation dimension H 1 in the width direction in this manner at a plurality of locations, the positional deviation size of H 2 width direction of the longitudinal front part 2 1 a as shown in FIG. 6 C, longitudinal back side It is possible to know that the pattern 21 is skewed and transferred by the difference IH 2 —H 3 I in the displacement dimension H 3 in the width direction of 21 b.
- the positional displacement dimension H 1 in the width direction but so as to detect by connexion oblique displacement to be measured at a plurality of places, to be measured more ⁇ office longitudinal misalignment dimensions
- the measurement is not limited to two locations and may be performed at three or more locations.
- the above-described measurement of each displacement dimension L and detection of the displacement direction are performed by a symbol detection unit such as an image processing using an image recognition device such as an ITV.
- the pattern detection unit captures an image of the molded product at the time of or after the molded product is taken out, and obtains a displacement value of the design of the molded product as a digital value.
- the ITV here is an image recognition device that photographs a molded article with a television camera, analyzes the photographed image, and detects the position of the symbol. Specifically, the molded product is photographed from the position where the design is reflected, and the photographed image is subjected to color recognition or pattern recognition, and the image data in the image data from the outer frame position of the molded product to the design 21 is obtained. By measuring the distance, the position of the symbol in the molded product is measured. The information on the measured position of the symbol is compared with a predetermined position set in advance, and the shift amount and the shift direction are output as digital values.
- This molded article inspection step is performed after the transfer molding step described above is repeated a plurality of times, that is, after a plurality of molded articles have been discharged, and is performed on the single molded article. You can.
- the process is performed on the next one molded product from which 10 molded products have been discharged.
- the position of the symbol may be detected by performing the process for each transfer molding process, that is, for each detected molded product. That is, the molded article inspection process is performed as needed.
- the transfer film position correcting step the transfer film 20 is moved to a position at the transfer position of the transfer film based on the displacement dimensions L and Hi of the pattern 21 of the molded product. This is the step of correcting.
- the shielding ratio of each sensor 30, 31, 32 is set to 50%, and the transfer position of the transfer film that can correct the misalignment dimension L x , H x of the pattern 21 of the molded product Is calculated, and the position of the transfer film is moved from the calculated position so that each of the sensors 30, 31, and 32 has the required shielding ratio.
- the transfer film 20 that can correct the displacement dimension 1 ⁇ is used. The position is detected, the transfer film 20 is moved toward the rear side in the longitudinal direction, and the movement of the transfer film is stopped when the shielding ratio of the transfer film position detection device reaches that value.
- the longitudinal position of the transfer film 20 after position correction is detected by the above-described longitudinal mark 22 and the longitudinal sensor 30, and the detected longitudinal direction is detected.
- the length of movement of the transfer film 20 in the longitudinal direction is detected from the difference between the position and the longitudinal transfer position before position correction detected as shown in FIGS. 4A to 4C described above.
- This moving amount is compared with the above-described misalignment dimension 1 ⁇ of the pattern of the molded product, and if they do not match, the transfer film 20 is moved in the longitudinal direction again by the difference to make them match.
- This Yotsute can only accurately position compensation by moving the longitudinal position displacement dimension L x the transfer film 2 0.
- the transfer position of the transfer film 20 and the position after the position correction can be detected as a digital value, the difference between the positions can be detected as a digital value.
- the transfer film 20 can be moved so that the difference between the positional deviation dimension and the above-mentioned position coincides, and the deviation of the design of the molded product can be corrected.
- the width direction mark 23 and the first ⁇ second width direction sensors 31 and 32 are used to determine the width direction position of the transfer film 20 after the position correction.
- the amount of movement of the transfer film 20 in the width direction is detected based on the difference between the detected width direction position and the widthwise transfer position before position correction detected as shown in FIG.
- the transfer film 20 can be accurately moved in the width direction by the displacement amount to correct the position.
- the front side and the rear side in the longitudinal direction of the transfer film 20 are moved in the same manner as described above. Correct the position. That is, the value of the shielding ratio to be taken by the first and second width direction sensors 31 and 32 after the correction is obtained, and the transfer film is moved so that the two sensors 31 and 32 take this value respectively.
- the ⁇ direction sensor has a pair at intervals in the longitudinal direction as described above, and the film moving section has the front and rear sides of the mold as described above. Therefore, a film moving unit configured to move the transfer film 20 in the width direction is required. This specific configuration will be described later.
- a molded article inspection step is also performed at the same time. In other words, the transfer film position correction process is automatically performed so that the transfer film is positioned to correct the pattern shift of the molded product detected in the molded product inspection process, and the molding transfer process is interrupted.
- the position of the design 21 can be maintained at an appropriate position for a plurality of molded articles that are continuously molded without causing the molded article to be molded.
- the misalignment dimension of the pattern 21 of the molded article is detected as a first digital value, and the position where the transfer film 20 should exist when the correction is completed is determined based on the second digital value. The position of the transfer film 20 is automatically stopped when they match.
- information on the detected transfer position of the transfer film 20 and the misalignment dimension of the pattern of the molded product is input to the controller, and the controller outputs a control signal to the film moving unit to output the control signal to the film moving unit.
- Move 0. the position of the transfer film 20 is continuously detected by the sensor 1 and the feedback is fed back to the controller to correct the positional deviation obtained from the positional deviation dimension.
- the film moving section is stopped when the value of the shielding ratio of each sensor that can be obtained coincides, and the correction of the transfer film is completed.
- the transfer film 20 is moved by the displacement dimension in the direction opposite to the displacement direction, and then the transfer molding process is performed, so that the pattern 21 can be correctly transferred to the predetermined position of the molded product. it can.
- the pattern 21 may not be correctly transferred to a predetermined position of the molded product.
- the position of the pattern 21 of the molded product obtained by transfer molding after correcting the position of the transfer film 20 is detected again, and if there is a misalignment, the transfer film 20 is again detected. Is performed. This is repeated so that the pattern 21 of the molded product is correctly transferred to a predetermined position.
- the molded product inspection process is performed again, and if there is a positional shift of the pattern 21 of the molded product, the position correction process of the transfer film 20 is performed again. It is preferable to repeat the process.
- the difference between the misalignment dimension of the pattern 21 of the molded product transferred and molded before the position correction of the transfer film 20 and the positional deviation dimension of the pattern 21 of the molded product transferred and molded after correcting the position of the transfer film 20 Is detected.
- an allowable range is set for the misalignment dimension of the pattern 21 transferred to the molded product, and when the misalignment dimension is within the allowable range, the position correction of the transfer film 20 is not performed, and the misalignment dimension is set. When the value exceeds the allowable range, the position of the transfer film 20 is corrected.
- the allowable range is set arbitrarily depending on the molded product. For example, it is set as a value of ⁇ 0.1 mm to soil 0.05 mm.
- a film feeding device 10 and a film winding device 11 are provided as a film moving unit, and the first 'second direction sensors 31 and 32 are provided, and the first direction sensor 31 is provided. Since the second width direction sensor 32 is closer to the film feeding device 11 of the mold (movable mold 4) near the film feeder 10 of the mold (movable mold 4), the first moving mechanism. 1 to move the film feeder 10 in the width direction, and to control the second moving mechanism 13 to move the film winding device 11 in the width direction, and to control the first ⁇ ⁇ direction sensor. The above is performed at the position in the width direction detected by 31 and the position in the width direction detected by the second width direction sensor 32.
- the transfer film 20 can be moved in the width direction on both sides in the movement direction of the transfer film 20 with the mold (movable mold 4) as a boundary, and the position can be quickly and accurately corrected in the width direction. it can.
- a bracket 40 is attached to the movable platen 3, and the movable body 41 is provided on the bracket 40 so as to be movable in the moving direction of the movable platen 3 and moves.
- a third moving mechanism 42 for moving the moving body 41 in the direction of movement of the movable platen 3 is provided between the body 41 and the bracket 40.
- a screw rod 42a screwed to the moving body 41 is rotatably connected to the bracket 40, and the screw rod 42a is tightened and loosened so that the moving body 41 moves the movable platen 3. It is configured to move in the direction.
- the moving body 41 is screwed with the screw rod 42a by the lock nut 42b.
- the third moving mechanism 42 may be configured by rotating a screw rod 42a with a cylinder and a motor, and screwing a nut to the screw rod 42a.
- the moving body 41 is provided with a housing 43 in the width direction of the transfer film 20, and is provided for moving the housing 43 in the width direction with respect to the moving body 41.
- the first moving mechanism 12 is provided.
- a delivery reel 44 and a delivery roller 45 are rotatably supported on the housing 43.
- the transfer reel 24 is rotated.
- the sending reel 44 is driven by the first motor 46 to rotate in the forward and reverse directions.
- the delivery reel 44 has a pair of flanges 44 b attached to a shaft 44 a and is detachably attached to the housing 43.
- the first moving mechanism 12 has a motor 12b mounted on a guide frame 12a, and a nut 12d screwed on a screw rod 12c rotated by the motor 12b.
- the nut 12 d is free to move along the guide frame 12 a.
- the guide frame 12 a is fixed to the moving body 41, and the nut 12 d is fixed to the housing 43. I have.
- a guide frame 47 is provided on the moving body 41, and a slider 48 that moves along the guide frame 47 is fixed to the housing 43, and the housing 43 is attached to the moving body 41. It is configured to be able to move smoothly.
- the transfer film 20 is fed out by setting the sending reel 44 to the normal rotation or the free rotation, and is sent out from the sending roll 45.
- the moving body 41 is configured to move in the moving direction of the movable platen 3 by the third moving mechanism 42, the delivery roll 45 moves together with the housing 43 in the moving direction of the movable platen 3 to perform transfer.
- the distance between the parting surface 4a of the movable mold 4 and the transfer film 20 can be adjusted by adjusting the feeding position of the film 20.
- the transfer film 20 wound on the delivery reel 44 moves in the width direction. 0 can be moved in the width direction.
- the transfer film sent from the film feeder 10 passes between the two dies 2 and 4 and is sent by the film pulling mechanism 14.
- the specific structure of the film tension mechanism 14 will be described.
- the film pulling mechanism 14 includes a driving roll 50 and a driven roll 51, and the driving roll 50 is configured to be rotatable by a second motor 52.
- the driven roll 51 is provided so as to be able to be pressed and separated from the driving roll 50, and the transfer film 20 is passed between the driving roll 50 and the driven roll 51 in a separated state.
- the drive roller 50 is driven in the state of being pressed to convey the transfer film 20 to apply tension. .
- the delivery reel 44 of the film delivery device 10 is braked by the first motor 46.
- the drive roll 50 and the second motor 52 are provided in the first housing 53, and the driven roll 51 is provided in the second housing 54.
- the first housing 53 and the second housing 54 are swingably connected to each other, and an urging member, for example, a spring 55 is attached across the first housing 53 and the second housing 54.
- the driving roll 50 and the driven roll 51 are separated from each other.
- the second housing 54 By mounting the spring 55, the second housing 54 is urged to swing toward the first housing 53 in the approaching direction, so that the driving roll 50 and the driven roller 51 are pressed against each other.
- the film pulling mechanism 14 (for example, the first housing 53) is attached to the movable platen 3 via the second moving mechanism 13.
- the movable platen 3 is provided with a bracket 56,
- a moving body 57 is provided at 56 so as to be movable in the moving direction of the movable platen 3.
- a fourth moving mechanism 58 for attaching the moving body 57 to the bracket movably in the moving direction of the movable platen 3 is provided.
- a screw ⁇ 58 a screwed to the moving body 57 is rotatably connected to the bracket 56, and the moving rod 57 is moved by tightening and loosening the screw rod 58 a. .
- the moving body 57 is screwed with the screw rod 58a by the lock nut 58b.
- the fourth moving mechanism 58 may be configured by rotating a screw rod 58a with a cylinder and a motor, and screwing a nut to the screw rod 58a.
- the moving body 57 has a bow!
- a tensioning mechanism 14 is provided movably in the width direction of the transfer film 20.
- the second moving mechanism 13 for moving the film tensioning mechanism 14 in the width direction with respect to the moving body 57. Is provided.
- the second moving mechanism 13 is similar to the first moving mechanism 12 in that a motor 13b is mounted on a guide frame 13a, and a screw rod 1 rotated by the motor 13b is provided. A nut 13d is screwed into 3c, and the nut 13d is movable along the guide frame 13a.
- the guide frame 13a is fixed to the moving body 57, and a nut 13 d is fixed to the film pulling mechanism 14 (first housing 53) .
- the second moving mechanism 13 and the first moving mechanism 12 are not limited to those described above.
- the film tension mechanism 14 can be moved in the direction of movement of the movable platen 3 to move the transfer film 20 in the thickness direction, and the film tension mechanism 14 can be moved in the width direction of the transfer film 20.
- the transfer film 20 can be moved in the width direction.
- the transfer film 20 is sent to the film winding mechanism 15 by the film tension mechanism 14 and wound up. The specific configuration of the film winding mechanism 15 will be described.
- the film winding mechanism 15 is an end of the apparatus main body 8.
- the film can be freely moved to a film removal position protruding outward beyond 8 a (the end 8 a in the moving direction of the movable platen 3) and a film winding position in the apparatus body 8.
- the film winding mechanism 15 can be positioned inside the apparatus main body 8 during the molding operation, so that the film winding mechanism 15 does not get in the way when passing outside the apparatus main body 8.
- the film winding mechanism 15 may be moved out of the apparatus body 8. As a result, the film can be easily removed.
- the film winding mechanism 15 is mounted so that two upper and lower guide rails 60 parallel to each other extend in the film moving direction with respect to the apparatus main body 8 (the gantry 6).
- the end of the guide rail 60 protrudes outward from the end 8 a of the apparatus body 8.
- the guide rail 60 is provided so as to be connected to the apparatus body 8 (the gantry 6) by a connecting member 66.
- the guide rail 60 has a hexagonal cross section as shown in FIG. 8, and is connected by a plate 68.
- the length of the guide rail 60 can be freely adjusted, and the guide rail 60 has a storage posture in which the guide rail 60 is stored in the device main body 8 and a protruding posture which protrudes from the end 8 a of the device main body 8. Can be.
- the guide rail is composed of a base guide rail 60 a and a front guide rail 6 O b connected to the apparatus main body 8 (the gantry 6) by the connecting member 66. , And are connected to each other with a hinge 60c so as to be freely bent.
- the hinge 60c is configured such that the side piece 81 and the other side piece 82 are rotatably connected by a pin 83, and the front guide rail 60b is fixed to one side piece 81 of the hinge 60c.
- the base guide rail 60 a is fixed to the other side piece 82.
- the side piece 81 has a pair of pin bearings 81a, and the other side piece 82 has a pin bearing 82b on the mounting part 82a.
- the plate 82c is provided at the moving position, and the pin bearing portions 81a and 82b are connected to each other by the pin 83.
- the leading guide rails 60b protrude from the end 8a of the apparatus main body 8 and have the above-described protruding posture.
- the front guide rail 60b When the front guide rail 60b is bent, it is stored in the apparatus main body 8 and assumes the storage posture described above. In the storage position, the front guide rail 60b may be configured to bend in the direction opposite to the arrow shown in FIG. 7 (ie, upward in FIG. 7). With this configuration, the portion protruding from the apparatus main body 8 can be reduced by bending the front guide guide 60b in the same direction as the winding reel 61 described later.
- the front guide rail 60b By attaching the hinge configured as described above between the front guide rail 60b and the base guide rail 60a, the front guide rail 60b can be bent by the hinge 60c to be in the storage position. it can.
- the pin bearings 8 1 a and 8 2 b are fixed to the guide rail so as to face the side where the moving body 64 is not provided, and the pin bearings are moved in the direction indicated by the arrow in FIG.
- the guide rail is configured to be bendable so that the moving body 64 and the hinge 60 c do not interfere with each other.
- the guide rail 60 may be configured to be extendable and contractible in order to make the storage posture stored in the apparatus main body 8 and the protruding posture protruding from the end 8 a of the apparatus main body 8.
- a bracket 67 is provided at the end of the base guide rail 60a on the side where the hinge 60c is not attached, and the third motor 62 is fixed to the bracket 67.
- the third motor 62 includes a rotating body 63 that is driven to rotate by driving the third motor 62.
- the guide rail 60 is provided with a movable body 64 movable between a film transfer position and a film winding position.
- the moving body 64 is provided with wheels 69 that contact the upper rails 61 from below and wheels 69 that contact the lower rails 62 from above and are sandwiched between the guide rails 60 from above and below. In this state, it can move smoothly along the guide rail 60.
- the wheels 69 provided on the moving body 64 are provided with free grooves, which fit into the guide rails having a hexagonal cross section, fall off from the guide rails, and extend in the width direction of the guide rails. To prevent misalignment.
- the winding reel 6 1 is rotatably supported by a moving moving body 6 4 in a state of being held in a rotatable manner.
- a rotating disk 6 5 is provided at the tip of the winding reel 6 1 with a winding reel 6 1. Is fixed perpendicularly to the rotation axis of.
- the rotating disk 65 and the third motor rotating body 63 come into contact with each other, preferably press-contact.
- the third motor 62 is driven to rotate the rotating disk 65, the rotational force is transmitted to the rotating circle 65 by friction acting between the two members, and the winding reel 61 rotates.
- the rotating body 63 has a rubber ring 63b attached to the outer peripheral surface of the rotating disk 63a to increase the frictional resistance.
- the longitudinal direction sensor 30 and the first and second width direction sensors 3 1 and 3 2 are arranged in the moving direction of the movable platen 3 (thickness direction of the transfer film 20), the moving direction of the transfer film 20 (longitudinal direction). )
- the transfer film 20 can be freely moved in the width direction of the transfer film 20.
- the position can be adjusted in the longitudinal direction according to the size of the pattern 21 and the size of the mold, and the position can be adjusted in the moving direction of the movable plate according to the size of the mold (the size in the movable plate moving direction).
- the position can be adjusted in the width direction according to the width of the transfer film 20.
- the first moving body 71 is mounted along the lateral guides 70 mounted on the brackets 40 and 56, respectively, so as to be movable in the moving direction of the movable platen 3, respectively.
- a vertical rod 72 is slidably supported on each of the first moving bodies 71 in the moving direction (up and down direction) of the transfer film 20, and a second moving body 73 is mounted on each of the vertical rods 72.
- Each of the second moving bodies 73 is mounted vertically, and is movable in the vertical direction.
- a bracket 74 is attached to the second moving body 73 independently in the width direction of the transfer film 20.
- the light emitting device 33 and the light receiving device 34 are respectively attached to the bracket 74 to form a longitudinal sensor 30 and first and second width sensors 31 1 and 32.
- the first moving body 71 is fixed by tightening the first screw 75, and when the first moving body 71 is loosened, the first moving body 71 moves along the lateral guide 70.
- the vertical rod 72 is fixed by tightening the second screw 76, and when it is loosened, the vertical rod 72 moves up and down with respect to the first moving body 71.
- the bracket 74 includes a mounting piece 74a and a sensor mounting piece 74b, and the sensor mounting piece 74a extends along the groove 73a of the second moving body 73. Is fixed by bolts 7 7 movably supported, and when the port 7 7 is loosened, the bracket 7 4 moves along the groove 7 3 a with respect to the second moving body 7 3 to the width of the transfer film 20. Move in the direction.
- the light emitting device 33 and the light receiving device 34 are attached to the sensor mounting piece 7 4b of each bracket 74, and the transfer film 20 enters between the light emitting device 33 and the light receiving device 34.
- a pair of guides 78 are provided for ease of use.
- the mounting structure of the sensor shown in Figs. 10 and 11 is the same as the longitudinal sensor 30
- the first and second width direction sensors 31 and 32 have different mounting positions, they have two symmetrical configurations.
- the structure for mounting the longitudinal direction sensor 30 and the second width direction sensor 32 is a structure that is symmetrical to the configuration shown in Fig. 11.
- control of the transfer molding apparatus having the above configuration will be described.
- the transfer molding apparatus in FIG. 1 is driven under the control of a control mechanism.
- the drive mechanism is provided with a controller 90.
- the controller 90 includes a longitudinal direction sensor 30, and a first ⁇ second width direction sensor 31, 32.
- An output signal including information on the amount of received light from the detector 34 is input.
- the controller 90 calculates the amount of deviation between each mark and each sensor based on the input information on the amount of received light, detects the transfer position of the transfer film 20 (the position at the time of transfer) as a digital value, and stores it. I do.
- the molded product b to which the symbol 21 has been transferred is transferred by the robot arm 91 to outside the molding part of the mold. Thereafter, the misalignment dimension (eg, L X) H i) and misalignment direction of the pattern of the molded product are detected as digital values by the image recognition device 92, and the detected misalignment dimensions L i, ⁇ L i h position Information on the shift direction is input to the controller 90.
- This operation can be performed at any timing. For example, it may be performed every 500 times.
- the controller 90 determines whether or not it is necessary to correct the position of the transfer film 20 based on the value of the input misalignment dimension of the design of the molded product.
- the controller 90 determines that it is necessary to correct the position by moving the transfer film 20 in the longitudinal direction, based on the positional deviation dimension 1 ⁇ in the longitudinal direction and the positional deviation direction, the first 90
- the third motors 46, 52, 62 are driven and controlled to move the transfer film 20 in the longitudinal direction in the direction opposite to the direction of displacement.
- the longitudinal sensor 30 monitors the longitudinal position of the transfer film 20 based on a change in the amount of light received by the longitudinal sensor 130 simultaneously with the movement of the transfer film 20.
- the first, second, and third motors 46, 52, and 62 are activated. Stop and stop the transfer film.
- the controller 90 needs to move the transfer film 20 in the width direction to correct the position. If it is determined that there is a transfer film 2, the motors 12b and 13b of the first and second moving mechanisms 12 and 13 are driven and controlled based on the displacement size and the displacement direction in the width direction. 0 is moved in the width direction in the direction opposite to the displacement direction.
- the first 'second width direction sensors 3 1, 3 2 rotate in the same manner as described above based on the change in the amount of light received by the first width direction sensors 3 1, 3 2 simultaneously with the movement of the transfer film 20. monitoring the position in the width direction of the shooting film 2 0, the controller 9 0, that the position of the transfer film 2 0 position transfer film width-direction displacement dimension H x described above can complement i £ is located Upon detection, the motors 12b and 13b are stopped. Thereby, the width direction position correction of the transfer film 20 is completed.
- the transfer molding operation is performed several times. For example, do it six times. Thereafter, the molded product is transferred to the image recognition device 92 in the same manner as described above, and the misalignment dimension and direction of the design of the molded product are detected again.
- controller 90 determines that the position needs to be corrected, the above-described position correction operation is performed again.
- the misalignment dimension of the pattern 21 of the molded product b transferred and molded before the position correction of the transfer film 20 and the pattern of the molded product b transferred and molded after the position of the transfer film 20 is corrected.
- the difference between the 21 displacement dimensions may be detected.
- the transfer film 20 is moved by this difference.
- the motors 44, 52, 65, 12b, and 13b are stopped.
- controller 90 determines that there is no need to perform position correction by repeating this, a normal transfer molding operation is performed.
- the determination of the position correction in this description is made based on whether the positional deviation dimension of the pattern 21 of the molded product is within the allowable range.
- the operation of moving the transfer film 20 to correct the position may be performed after the transfer film 20 is moved to the transfer position as usual, or the transfer of the transfer film 20 may be performed. It may be performed before moving to the position.
- the sensors 30, 31, and 32 are used to detect the protruding direction of the mark and to detect the position and the deviation direction of the transfer film.
- the history of the shielding rates of 30, 30, 31, 32 is taken, but the present invention is not limited to this.
- two light emitters and two light receivers are provided in one sensor at different positions, The direction of the shift can be detected by comparing the shielding rates of the two light receivers.
- the frequency of detection of a pattern shift of a molded product by the symbol detection unit can be performed at an arbitrary timing, and the frequency of detection can be appropriately changed according to molding conditions. For example, after correcting the position of the transfer film, it is possible to increase the frequency of detecting the misregistration of the pattern, and to reduce the frequency of detection as the amount of misregistration gradually decreases. .
- information obtained by detecting the misregistration of the molded product by the symbol detection unit is stored, and the information is accumulated when a predetermined condition is satisfied, such as when a predetermined amount of information is accumulated or when a predetermined time has elapsed.
- An average value may be obtained by averaging the information values, and the position of the transfer film may be corrected based on the average value.
- the film winding mechanism 15 may be arranged so as to be movable in the width direction of the transfer film by the second moving mechanism without providing the film pulling mechanism.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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MXPA05009330A MXPA05009330A (es) | 2003-03-03 | 2004-03-03 | Metodo de transferencia y moldeo y aparato para transferencia y moldeo. |
JP2005503067A JP3990424B2 (ja) | 2003-03-03 | 2004-03-03 | 転写成形方法及び転写成形装置 |
US10/546,526 US7582246B2 (en) | 2003-03-03 | 2004-03-03 | Transferring and molding method and transferring and molding apparatus |
BRPI0407995-7A BRPI0407995A (pt) | 2003-03-03 | 2004-03-03 | processo e aparelho de transferência e moldagem |
EP04716748A EP1600273A4 (en) | 2003-03-03 | 2004-03-03 | METHOD AND DEVICE FOR TRANSFERRING BY DECALCOMANIA |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-055705 | 2003-03-03 | ||
JP2003055705 | 2003-03-03 |
Publications (1)
Publication Number | Publication Date |
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WO2004078452A1 true WO2004078452A1 (ja) | 2004-09-16 |
Family
ID=32958667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/002628 WO2004078452A1 (ja) | 2003-03-03 | 2004-03-03 | 転写成形方法及び転写成形装置 |
Country Status (9)
Country | Link |
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US (1) | US7582246B2 (ja) |
EP (1) | EP1600273A4 (ja) |
JP (1) | JP3990424B2 (ja) |
KR (1) | KR20050113606A (ja) |
CN (1) | CN100482438C (ja) |
BR (1) | BRPI0407995A (ja) |
MX (1) | MXPA05009330A (ja) |
TW (1) | TWI325813B (ja) |
WO (1) | WO2004078452A1 (ja) |
Cited By (4)
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JP2008076251A (ja) * | 2006-09-21 | 2008-04-03 | Kurabo Ind Ltd | 試料ブロックの面出し方法 |
JP2012232420A (ja) * | 2011-04-28 | 2012-11-29 | Nissha Printing Co Ltd | 枚葉加飾シート準備装置及び射出成形システム |
JP2020062865A (ja) * | 2018-10-19 | 2020-04-23 | パナソニックIpマネジメント株式会社 | 加飾成形方法及び加飾成形装置 |
US11007689B2 (en) | 2018-02-08 | 2021-05-18 | Panasonic Intellectual Property Management Co., Ltd. | Method of manufacturing in-mold decorative molded article |
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JP2006272883A (ja) * | 2005-03-30 | 2006-10-12 | Nissha Printing Co Ltd | 転写成形装置及び転写成形方法 |
JP4477084B2 (ja) * | 2007-10-04 | 2010-06-09 | 日本写真印刷株式会社 | 成形同時加飾方法 |
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JP5410384B2 (ja) * | 2010-08-09 | 2014-02-05 | 日本写真印刷株式会社 | 転写加飾品の製造方法、転写加飾装置及び転写加飾品 |
JP5623673B2 (ja) * | 2012-10-15 | 2014-11-12 | シャープ株式会社 | 成型装置、成型装置ユニット及び成形方法 |
DE102016118259A1 (de) * | 2016-09-27 | 2018-03-29 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zum Verarbeiten von Folien sowie eine Vorschubeinrichtung, ein Spritzgusswerkzeug und ein System |
CN107253312B (zh) * | 2017-08-07 | 2023-04-14 | 广东思为客科技股份有限公司 | 一种塑胶水管自动植入螺母的注塑设备及其方法 |
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2004
- 2004-03-02 TW TW093105417A patent/TWI325813B/zh not_active IP Right Cessation
- 2004-03-03 CN CNB2004800058990A patent/CN100482438C/zh not_active Expired - Fee Related
- 2004-03-03 KR KR1020057015006A patent/KR20050113606A/ko active IP Right Grant
- 2004-03-03 JP JP2005503067A patent/JP3990424B2/ja not_active Expired - Fee Related
- 2004-03-03 US US10/546,526 patent/US7582246B2/en not_active Expired - Fee Related
- 2004-03-03 EP EP04716748A patent/EP1600273A4/en not_active Withdrawn
- 2004-03-03 MX MXPA05009330A patent/MXPA05009330A/es active IP Right Grant
- 2004-03-03 WO PCT/JP2004/002628 patent/WO2004078452A1/ja active Application Filing
- 2004-03-03 BR BRPI0407995-7A patent/BRPI0407995A/pt not_active IP Right Cessation
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JPH04158015A (ja) * | 1990-10-22 | 1992-06-01 | Nissha Printing Co Ltd | 転写フィルム送り装置 |
JPH04363217A (ja) * | 1990-12-14 | 1992-12-16 | Niyuurii Kk | 成形機におけるシートの位置修正装置及びその方法 |
JPH05154869A (ja) * | 1991-12-09 | 1993-06-22 | Meiki Co Ltd | 転写成形における転写フィルムの位置決め方法および装置 |
JPH07178767A (ja) * | 1994-10-24 | 1995-07-18 | Dainippon Printing Co Ltd | 絵付用射出成形方法およびその装置 |
JPH1044183A (ja) * | 1996-07-31 | 1998-02-17 | Dainippon Printing Co Ltd | 射出成形同時絵付方法及び装置 |
JP2002198386A (ja) * | 2000-12-25 | 2002-07-12 | Sainekkusu:Kk | 半導体装置の樹脂封止装置 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008076251A (ja) * | 2006-09-21 | 2008-04-03 | Kurabo Ind Ltd | 試料ブロックの面出し方法 |
JP2012232420A (ja) * | 2011-04-28 | 2012-11-29 | Nissha Printing Co Ltd | 枚葉加飾シート準備装置及び射出成形システム |
US11007689B2 (en) | 2018-02-08 | 2021-05-18 | Panasonic Intellectual Property Management Co., Ltd. | Method of manufacturing in-mold decorative molded article |
JP2020062865A (ja) * | 2018-10-19 | 2020-04-23 | パナソニックIpマネジメント株式会社 | 加飾成形方法及び加飾成形装置 |
JP7117634B2 (ja) | 2018-10-19 | 2022-08-15 | パナソニックIpマネジメント株式会社 | 加飾成形方法及び加飾成形装置 |
Also Published As
Publication number | Publication date |
---|---|
JP3990424B2 (ja) | 2007-10-10 |
JPWO2004078452A1 (ja) | 2006-06-08 |
MXPA05009330A (es) | 2006-01-30 |
US20060172025A1 (en) | 2006-08-03 |
KR20050113606A (ko) | 2005-12-02 |
CN1756638A (zh) | 2006-04-05 |
BRPI0407995A (pt) | 2006-03-07 |
EP1600273A1 (en) | 2005-11-30 |
TWI325813B (en) | 2010-06-11 |
EP1600273A4 (en) | 2009-03-18 |
CN100482438C (zh) | 2009-04-29 |
US7582246B2 (en) | 2009-09-01 |
TW200422169A (en) | 2004-11-01 |
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