WO2007000930A1 - 射出圧縮成形用金型 - Google Patents
射出圧縮成形用金型 Download PDFInfo
- Publication number
- WO2007000930A1 WO2007000930A1 PCT/JP2006/312499 JP2006312499W WO2007000930A1 WO 2007000930 A1 WO2007000930 A1 WO 2007000930A1 JP 2006312499 W JP2006312499 W JP 2006312499W WO 2007000930 A1 WO2007000930 A1 WO 2007000930A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- molding
- resin
- ejector
- compression
- Prior art date
Links
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- 239000007924 injection Substances 0.000 title claims abstract description 88
- 238000000748 compression moulding Methods 0.000 title claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 146
- 238000007906 compression Methods 0.000 claims abstract description 146
- 229920005989 resin Polymers 0.000 claims abstract description 95
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- 239000010410 layer Substances 0.000 description 30
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- 238000001746 injection moulding Methods 0.000 description 10
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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- 238000007740 vapor deposition Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
-
- 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
-
- 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
-
- 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
- B29C45/14778—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 the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
-
- 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/40—Removing or ejecting moulded articles
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
-
- 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
- B29C2045/14155—Positioning or centering articles in the mould using vacuum or suction
-
- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
Definitions
- the present invention relates to an injection compression molding simultaneous decoration for producing an injection compression molding simultaneous decorative article which is not particularly required for post-processing and has excellent optical properties in an injection compression molding mold. For molds.
- Patent Document 1 As a technique related to the simultaneous injection molding method for obtaining a thin molded product such as a cellular phone window panel, there is a mold described in Patent Document 1. As a technique related to the injection compression molding method, there is a mold described in Patent Document 2.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-314611
- Patent Document 2 Japanese Patent Laid-Open No. 11-179769
- the mold described in Patent Document 1 is formed by a first mold and a second mold.
- the molding space part includes a product molding space part, a resin injection molding space part, and a resin discharging molding space part.
- the product molding space not only the product molding space but also the resin discharging molding space is molded. Therefore, in order to obtain the desired molded product, unnecessary parts formed on the outer periphery of the product must be cut in a subsequent process.
- the gate portion for molding resin injection adopts the side gate method. Therefore, in order to obtain the desired molded product, the side gate traces must be separated from the product.
- Patent Document 1 and Patent Document 2 have a problem in that they are disadvantageous in terms of manufacturing costs.
- the decorative sheet 3 is disposed between the first mold 1 and the second mold 2, and the molding resin 31 is filled between the decorative sheet 3 and the second mold 2 from the gate portion 41.
- the second mold 2 includes a compression block 12 that compresses the molded resin 31 filled by reducing the volume of the molding space 30, an outer peripheral plate 11 that is positioned around the compression block 12, and injection compression molding. It has an ejector pin 24 for projecting simultaneously decorated items as well as 2 molds.
- the ejector pin 24 is attached to the ejector plate 21 disposed in the working space 60 in the second mold 2 so as to be movable back and forth. Fixedly supported.
- the ejector pin 24 is provided so as to move integrally with the compression block 12 when the relative positional relationship between the compression block 12 and the outer peripheral plate 11 changes.
- the compression block 12 After the molded resin 31 is compressed by the compression block 12 to form an injection compression molded simultaneous decorative article, the compression block 12 is moved backward to change the relative positional relationship between the compression block 12 and the outer peripheral plate 11. At this time, the ejector pin 24 moves integrally with the compression block 12, and the ejector pin 24 moves away from the simultaneous injection-molding molded article. Therefore, in the molding space 30, the simultaneous injection compression molding decorative product can move and the position becomes unstable.
- An object of the present invention is to provide an injection compression molding die that can hold the position of an injection compression molded product in a molding space after molding the injection compression molded product.
- the present inventor has further studied in view of the above-mentioned problems, and advances the compression block so that the volume in the molding space is reduced while the outer periphery of the product is closed by the outer peripheral plate, and compression molding is performed.
- the use of the method to be performed was examined and the present invention was obtained.
- the present invention is configured as follows to achieve the above object.
- the molding resin injection is provided in the second mold in the molding space formed by the first mold and the second mold arranged to face each other. After filling the melted molded resin from the force of the gate part, the volume of the molding space is reduced and the filled molded resin is compressed, and the molded resin is solidified to produce an injection compression molded product.
- a plate is provided in the first mold or the second mold, and the outer plate and the relative position of the injection compression molded product with the ejector pin for ejecting the first mold or the second mold force. The relative relationship between the compression block and the outer peripheral plate without changing the relationship The positional relationship can be changed.
- the ejector pin is arranged such that a part thereof protrudes into the molding space when the molding resin is filled.
- the compression block, the outer peripheral plate, and the ejector pin are provided in the second mold, and the ejector pin is provided in a state of penetrating the compression block. It is.
- the second mold has an operating space portion, and an ejector pin through hole and an ejector are provided in a front partition wall constituting a part of the operating space portion.
- the compression block is fixedly supported outside the front partition, and the compression block has an ejector pin insertion hole communicating with the ejector pin insertion hole of the front partition.
- the outer peripheral plate is slidable around the compression block and can be separated from the front partition, and an ejector plate is arranged in the working space so as to be movable back and forth.
- the ejector pin fixedly supported by the ejector plate penetrates the ejector pin through hole of the front partition and the ejector pin through hole of the compression block.
- the ejector one plate fixing pin having a head for preventing slipping out at the rear is passed through the ejector one plate fixing pin insertion hole, and the front end is fixedly supported by the outer peripheral plate, and the ejector one plate Between the front partition and the front partition, a spring is mounted on the ejector plate fixing pin.
- the second mold further comprises a hole forming insert that passes through the compression block, and the outer peripheral plate, the ejector pin, and the hole forming insert.
- the relative positional relationship between the compression block and the outer peripheral plate can be changed without changing the relative positional relationship.
- the first mold includes suction means for sucking a decorative sheet disposed between the first mold and the second mold.
- the first mold and the second mold in a state in which a decorative sheet is disposed between the first mold and the second mold that are arranged to face each other.
- the mold is closed with an interval corresponding to the thickness of the decorative sheet.
- the compression is performed without changing the relative positional relationship between the outer peripheral plate and the ejector pin, particularly when the compression block after compression of the molding resin moves backward.
- the relative positional relationship between the block and the outer peripheral plate can be changed. Therefore, even if the compression block moves backward and the volume of the molding space increases, the injection compression molded product can be kept in the state where it is held by the ejector pin. As a result, the desired posture can be maintained without the injection compression molded product moving in the molding space.
- the molding is performed even when the thickness of the injection compression molded product is as thin as lmm.
- the distance between the gate and the transfer film is about 1.5mm, so there is less risk of defective products due to ink flow.
- the compression block when the molding resin is filled, a portion of the ejector pin is disposed so as to protrude into the molding space.
- the compression block When the molded resin is compressed, the compression block can be pushed into the outer peripheral plate without changing the relative positional relationship between the outer peripheral plate and the ejector pin. Therefore, an injection compression molded product can be molded with a portion of the ejector pin being embedded.
- the compression block moves backward, only the compression block moves relative to the outer peripheral plate without changing the relative positional relationship between the outer peripheral plate and the ejector pin. Therefore, a part of the ejector pin is embedded in the injection compression molded product, and is securely held by the ejector pin.
- the side on which the compression block is compressed and the side on which the ejector pin protrudes are the sides facing the second mold of the injection compression molded product. Therefore, an injection compression molded product can be molded without damaging the side facing the first mold.
- the decorative sheet is placed closer to the first mold than the molding resin to be filled, so that the decorative sheet is not damaged. Compression molding can be molded simultaneously.
- the ejector one pin is fixedly supported by the ejector one plate, and the ejector one plate fixing pin having a head for preventing the rear portion from being removed is provided in the ejector plate fixing pin insertion hole.
- the front end is fixedly supported by the outer peripheral plate while being passed through. Therefore, the relative positional relationship between the compression block and the outer peripheral plate can be changed without changing the relative positional relationship between the outer peripheral plate and the ejector pin.
- the compression block moves backward and the volume of the molding space increases, the injection compression molded product will It is possible to maintain the desired posture without moving the injection compression molded product in the molding space while maintaining the state held by the ejector pin.
- an injection compression molded product having a hole can be obtained by further including a hole forming nest through which the second mold penetrates the compression block.
- a hole forming nest through which the second mold penetrates the compression block.
- the suction means sucks the decorative sheet
- the calorie decorative sheet can be held in a state along the first mold. Therefore, the deformation of the decorative sheet can be suppressed at the time of filling the molded resin, and a good injection compression molding simultaneous decorative article can be formed.
- an interval corresponding to the thickness of the decorative sheet is provided between the first mold and the second mold when the molding resin is filled and when the molding resin is compressed. Can do. Therefore, gas can be vented through the gap between the first mold and the second mold when the molding resin is filled and when the molding resin is compressed, and a good injection compression molded simultaneous decorative product can be formed.
- FIG. 1 is a schematic cross-sectional view showing a state where the mold is opened.
- the first mold 1 is formed in a square shape or the like as in the prior art.
- a shape for forming the surface of the injection compression molded product is engraved.
- the second mold 2 is formed in a rectangular shape having a width and a height corresponding to the first mold 1.
- the second mold 2 is mounted with a compression block 12 in which the shape for forming the back surface of the injection compression molded product is engraved on the surface facing the first mold 1.
- an outer peripheral plate 11 for configuring the outer peripheral shape of the injection compression molded product is provided.
- the compression block 12 forms the entire back surface of the injection compression molded product.
- the compression block 12 may partially form the back surface of the injection compression molded product, and the outer plate 11 may form the remaining portion.
- the second mold body 14 has an operating space 60.
- the front partition 61 constituting a part of the working space 60 has an ejector pin insertion hole 62 and an ejector one plate fixing pin insertion hole 63.
- the compression block 12 is fixedly supported outside the front partition wall 61.
- the compression block 12 has an ejector pin through hole 64 communicating with the ejector pin through hole 62 of the front partition wall 61.
- An outer peripheral plate 11 that is slidable with the compression block 12 and can be separated from the front partition wall 61 is disposed around the compression block 12.
- An ejector plate 21 is arranged in the working space 60 so as to be movable back and forth.
- An ejector pin 24 fixedly supported on the ejector plate 21 passes through an ejector pin through hole 62 of the front partition wall 61 and an ejector pin through hole 64 of the compression block 12.
- An ejector one plate fixing pin 22 having a head 65 for preventing a rear end is passed through the ejector one plate fixing pin through hole 63 and the front end is fixedly supported by the outer peripheral plate 11.
- a spring 23 mounted on the ejector plate fixing pin 22.
- the outer peripheral plate 11 and the second mold body 14 are separated by a certain distance, for example, about 0.5 mm, by the elastic body 13.
- FIG. 2 is a schematic cross-sectional view showing a state immediately after the mold is closed.
- a molding space 30 is formed by the first mold 1, the outer peripheral plate 11, and the compression block 12. That is, the molding space 30 is formed by the first mold 1 and the second mold 2.
- an ejector pin 24 for projecting an injection compression molded product from the second mold 2 and a hole forming insert 25 for forming a hole in the injection compression molded product are arranged. That is, the ejector pin 24 and the hole forming insert 25 are arranged so that a part thereof protrudes into the molding space 30.
- FIG. 3 is a schematic cross-sectional view showing a state where a molding resin is injected into a mold.
- a molding resin 31 is injected into a molding space 30 from a gate part 41 provided in the compression block 12.
- the gate part 41 is constituted by a valve gate (not shown) of the hot runner 42. After injection of molded resin 31, the valve gate is closed
- the gate portion 41 may be a pin gate of a cold runner.
- the resin does not flow back through the gate during compression. Therefore, a higher compression molding effect can be obtained, which is preferable.
- Examples of the molded resin 31 include general-purpose resins such as polystyrene-based resin, polyolefin-based resin, acrylic-tolyl'-butadiene 'styrene resin, and acrylic resin.
- general-purpose engineering resins such as polyphenylene oxide, polystyrene resins, polycarbonate resins, polyacetyl resins, polycarbonate-modified polyphenylene ether resins, polybutylene terephthalate resins, polysulfones
- Super engineering ring resins such as resin, polyphenylene sulfide resin, polyphenylene oxide resin, polyarylate resin, polyetherimide resin, polyimide resin, liquid crystal polyester resin, polyallyl heat-resistant resin, etc. It can also be used.
- FIG. 4 is a schematic cross-sectional view showing a state in which the molding resin is compressed after the molding resin is injected.
- the outer peripheral plate 11 and the second mold body 14 have been separated by the extension force of the elastic body 13 so far.
- the mold closing force greater than the extension force is applied, the elastic body 13 is contracted, and the outer peripheral plate 11 and the second mold body 14 are in contact with each other. Therefore, the relative positional relationship between the outer peripheral plate 11 and the compression block 12 is changed, and the outer peripheral plate 11 is compressed by the molded resin 31 force compression block 12 filled in the molding space 30.
- the amount compressed by the compression block 12 is determined by the outer peripheral plate 11 and the second mold body 1.
- a thin spacer shim (not shown) can be used.
- the relative positional relationship between the outer plate 11 and the ejector pin 24 passing through the compression block 12 and fixed to the ejector plate 21 and the hole forming insert 25 does not change. This is because even if the distance between the outer peripheral plate 11 and the second mold body 14 is reduced, the relative force between the outer peripheral plate 11 and the ejector plate 21 is reduced by the extension force of the spring 23 and the ejector-one plate fixing pin 22. It is also the power to maintain the proper positional relationship.
- the volume in the molding space 30 is reduced by the operation of the compression block 12, but the ejector pin 24 and the hole forming insert 25 are not moved.
- the relative positional relationship between the molded resin 31 and the ejector pin 24 does not substantially change, and the movement of the ejector pin 24 against the injection compression molded product prevents the excessive force from being applied. And a good injection compression molded product can be obtained.
- FIG. 5 is a schematic cross-sectional view showing a state where the compression block is retracted after the molding resin is compressed.
- the ejector pin 24 and the hole forming insert 25 are arranged so that a part thereof protrudes into the molding space 30.
- the compression block 12 moves forward, as shown in FIG. 4, without changing the relative positional relationship between the outer peripheral plate 11, the ejector pin 24, and the hole forming insert 25, the compression block 12 and the outer peripheral plate 11 are moved. The relative positional relationship can be changed. Therefore, an injection compression molded product can be molded in a state where the ejector pin 24 and the hole forming insert 25 are partially embedded.
- the compression block 12 moves backward, as shown in FIG.
- the relative position between the compression block 12 and the outer peripheral plate 11 is not changed without changing the relative positional relationship between the outer peripheral plate 11, the ejector pin 24, and the hole forming nest 25.
- the target position can be changed. Therefore, when the compression block 12 is retracted, the position of the injection compression molded product in the molding space 30 can be accurately fixed by the ejector pin 24 and the hole forming insert 25.
- the ejector pin 24 is provided with an interval in the upward and downward direction. Therefore, the posture of the injection compression molded product can be kept stable.
- FIG. 6 is a schematic cross-sectional view showing a state in which the mold is opened after the compression block is retracted.
- the injection compression molded product is held by the ejector pin 24 and the hole forming insert 25, and the state is shown.
- FIG. 7 is a schematic cross-sectional view showing a state where the injection compression molded product is protruded by the ejector pin 24 after the mold is opened.
- the ejector one plate 21 is moved in a direction approaching the first mold 1 by an ejector one plate operating mechanism (not shown).
- the ejector-one plate operating mechanism is, for example, operated by an air cylinder or an ejector-one rod connected to the first mold 1. Depending on the operation, two methods can be selected.
- injection compression molded products With the movement of the ejector plate 21, the injection compression molded product is protruded into the ejector pin 24 and the hole forming insert 25. After that, injection compression molded products can be obtained by existing means such as sucking by suction of the product take-out robot and methods of pinching and catching.
- the injection compression molding mold according to the present invention is used as a mold for simultaneous injection compression molding.
- the injection compression molding simultaneous decorating mold of the second embodiment will be described with reference to the drawings. The description of the same configuration as in the first embodiment is omitted.
- FIG. 8 is a schematic cross-sectional view showing a state where the mold is opened.
- a decorating sheet 3 is disposed between a first mold 1 and a second mold 2 which are arranged to face each other.
- the decorative sheet 3 is formed of a base sheet 51, a decorative layer 50, and the like.
- the decorative layer 50 has a pattern layer 52, an adhesive layer 53 and the like (see FIG. 15), and is used when only the decorative layer 50 is transferred to the molded resin 31.
- FIG. 9 is a schematic cross-sectional view showing a state immediately after the mold is closed.
- a molding space 30 is formed by the decorative mold 3 and the second mold 2 arranged in the first mold 1 and the first mold 1.
- the ejector pins 24 and the hole forming inserts 25 are partly projected.
- FIG. 10 is a schematic cross-sectional view showing a state where a molding resin is injected into a mold.
- a molding resin 31 is filled from a gate portion 41 into a molding space portion 30 surrounded by a decorative sheet 3, an outer peripheral plate 11 and a compression block 12.
- the first mold 1 and the second mold 2 are configured to be closed with an interval P corresponding to the thickness of the decorative sheet 3. Therefore, it is possible to perform degassing when filling the molded resin 31 through the gap P.
- FIG. 11 is a schematic cross-sectional view showing a state where the molding resin is compressed after the molding resin is injected.
- the volume in the molding space 30 is reduced by the operation of the compression block 12.
- the ejector pin 24 and the hole forming nest 25 do not move, and a state in which a part thereof protrudes into the forming space 30 is maintained. Further, it is possible to vent the molded resin 31 during compression through the gap P between the first mold 1 and the second mold 2.
- FIG. 12 is a schematic cross-sectional view showing a state in which the compression block is retracted after the molding resin is compressed.
- the volume of the molding space 30 increases as the compression block 12 moves backward. At this time, the ejector pin 24 and the hole forming insert 25 do not move, and a part of the ejector pin 24 protrudes into the molding space 30. Therefore, the position in the molding space 30 is fixed by the ejector pin 24 and the hole forming insert 25 in the injection-molded and simultaneously decorated decorative product.
- FIG. 13 is a schematic cross-sectional view showing a state in which the mold is opened after the compression block is retracted.
- the decorative layer 50 of the decorative sheet 3 is peeled off from the base sheet 51 to form a molded resin.
- the injection-compression-molded decorative product is held by the ejector pin 24 and the hole forming nest 25 and is shown.
- FIG. 14 is a schematic cross-sectional view showing a state in which an injection compression molded simultaneous decorative article is protruded by an ejector pin 24 after the mold is opened.
- the ejector one plate 21 is moved in a direction approaching the first mold 1 by an ejector one plate operating mechanism (not shown). With the movement of the ejector plate 21, the injection compression molding simultaneous decoration product is ejected by the ejector pin 24 and the hole forming insert 25.
- FIG. 15 is a schematic cross-sectional view showing the structure of a transfer film as the decorative sheet 3 used in the mold of the second embodiment.
- PET polyethylene terephthalate
- PET polyethylene terephthalate
- Single layer selected The film can be used it can.
- the base sheet 51 may have a thickness of 5 to 500 ⁇ m. Considering good handling properties, it is preferable to use a 25 to 75 m one. Considering good molding stability, it is preferable to use 38 to 50 ⁇ m.
- the release layer 54 becomes a surface positioned on the outermost side when the base sheet 51 is peeled off, and functions as a protective layer for the pattern.
- the release layer 54 is made of acrylic resin, nitrified cotton resin, polyurethane resin, salt rubber rubber resin, vinyl vinyl acetate vinyl resin copolymer, polyamide resin. Polyester-based resin, epoxy-based resin, polycarbonate-based resin, olefin-based resin, atta-tolyl-butadiene styrene resin, and the like.
- the thickness of the release layer 54 is 0.5 to
- the release layer 55 is a layer that has been surface-treated on the base sheet 51.
- the release layer 55 is provided to facilitate the peeling between the base sheet 51 and the peeling layer 54. Therefore, when the peeling can be performed only with the base sheet 51 and the release layer 54, the release layer 55 can be omitted.
- the material of the release layer 55 may be the same as that of the release layer 54.
- the picture layer 52 including characters, symbols, patterns, paint patterns, and the like is sealed between the release layer 54 and the adhesive layer 53.
- the material of this pattern layer 52 is acrylic resin, nitrified cotton resin, polyurethane resin, salt rubber rubber resin, salt rubber resin copolymer resin resin, polyamide resin , Polyester resin, epoxy resin, and the like.
- the picture layer 52 can also be formed of a metal film layer of aluminum, chromium, copper, nickel, indium, tin, silicon oxide, or the like, for example, by a method such as vacuum vapor deposition or plating.
- the film thickness of the pattern layer 52 is preferably set in the range of 0.5 ⁇ m to 50 ⁇ m in order to obtain sufficient design properties. In the case of a metal film layer, 50A to 1200A is preferable.
- the adhesive layer 53 is for bonding the pattern layer 52 to the surface of the molded product.
- the materials are acrylic resin, nitrified cotton resin, polyurethane resin, salt rubber rubber resin, vinyl chloride, vinyl acetate copolymer resin, polyamide resin, polyester resin, epoxy Resin, polycarbonate resin, olefin resin, acrylonitrile butadiene styrene Examples include rosin and the like.
- the thickness of the adhesive layer 53 is preferably 0.5 to 50 m.
- a force-decorated film that has been decorated using a transfer film can also be used.
- the design layer is formed directly on the base film without a release layer.
- the base film will also be integrated with the injection compression molding simultaneous decorating product.
- the base material sheet 51 for a decorative film may have a thickness of 25 to 1000 ⁇ m. In view of good handling properties, it is preferable to use one having a thickness of 50 to 600 ⁇ m. In consideration of good molding stability, it is preferable to use 100 to 500 m.
- the molded product could be stably produced without any variation in the dimensions of the molded product even when it was continuously molded using the product take-out robot. Needless to say, no post-processing after gate cutting is required on the outer periphery of the molded product.
- the third embodiment is another embodiment of the second embodiment.
- the injection compression molding simultaneous decorating mold according to the third embodiment will be described below based on the drawings. The description of the same configuration as in the second embodiment is omitted.
- FIG. 16 is a schematic cross-sectional view showing a state where the mold is opened.
- the first mold 1 is provided with suction means 70 for sucking the decorative sheet 3 disposed between the first mold 1 and the second mold 2.
- the suction means 70 includes a communication portion 71 that communicates with a mold cavity la for forming a forming space formed in the first mold 1, and a suction device 72 that sucks air through the communication portion 71. .
- the suction means 70 sucks the decorative sheet 3 so that the decorative sheet 3 can be held in a state of being along the mold cavity la. wear. Therefore, deformation of the decorative sheet 3 can be suppressed when the molded resin 31 is filled.
- the compression block 12, the outer peripheral plate 11, and the ejector pin 24 are provided in the second mold 2.
- the first mold 1 can be provided with the compression block 12, the outer peripheral plate 11, and the ejector pin 24.
- the ejector pins 24 are provided at intervals in the vertical direction, but the number of the ejector pins 24 can be changed as appropriate. Also, the installation position of the ejector pin 24 can be changed as appropriate. For example, the ejector pin 24 can be provided with a space in the left-right direction.
- the molding space formed by the first mold and the second mold arranged to face each other is filled with the molding resin melted with the gate portion force, and then the volume of the molding space is reduced. It can be applied to various injection compression molding dies for compressing molded resin filled in a reduced amount and solidifying the molded resin to obtain an injection compression molded product.
- FIG. 1 A schematic cross-sectional view showing a state in which the mold of the first embodiment is opened.
- FIG. 2 is a schematic sectional view showing a state immediately after the mold according to the first embodiment is closed.
- FIG. 3 is a schematic cross-sectional view showing a state where molding resin is injected into the mold of the first embodiment.
- FIG. 4 is a schematic cross-sectional view showing a state where the molding resin is compressed after the molding resin of the first embodiment is injected.
- FIG. 5 is a schematic cross-sectional view showing a state where the compression block is retracted after the molding resin of the first embodiment is compressed.
- FIG. 6 is a schematic cross-sectional view showing a state where the mold is opened after the compression block of the first embodiment is retracted.
- FIG. 7 is a schematic cross-sectional view showing a state where an injection compression molded product is protruded by an ejector pin after the mold of the first embodiment is opened.
- FIG. 8 is a schematic cross-sectional view showing a state in which the mold according to the second embodiment is opened.
- FIG. 9 is a schematic cross-sectional view showing a state immediately after the mold according to the second embodiment is closed.
- FIG. 10 is a schematic cross-sectional view showing a state where molding resin is injected into the mold of the second embodiment.
- FIG. 11 is a schematic cross-sectional view showing a state where the molding resin is compressed after the molding resin of the second embodiment is injected.
- FIG. 12 is a schematic cross-sectional view showing a state where the compression block is retracted after the molding resin of the second embodiment is compressed.
- FIG. 13 A schematic cross-sectional view showing a state in which the mold is opened after the compression block of the second embodiment is retracted.
- ⁇ 17 Schematic diagram showing a state in which the injection-molding and simultaneous decoration product is separated from the ejector pin force and the position in the molding space is unstable in a conventional mold
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020087001671A KR101318458B1 (ko) | 2005-06-29 | 2006-06-22 | 사출압축성형용 금형 |
JP2007523419A JP4809836B2 (ja) | 2005-06-29 | 2006-06-22 | 射出圧縮成形用金型 |
EP06767157.8A EP1897669B1 (en) | 2005-06-29 | 2006-06-22 | Die for injection compression molding |
BRPI0613506-4A BRPI0613506A2 (pt) | 2005-06-29 | 2006-06-22 | matriz para moldagem por compressão-injeção |
CN2006800232816A CN101218084B (zh) | 2005-06-29 | 2006-06-22 | 注射压缩成型用模具 |
Applications Claiming Priority (2)
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JP2005190467 | 2005-06-29 | ||
JP2005-190467 | 2005-06-29 |
Publications (1)
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WO2007000930A1 true WO2007000930A1 (ja) | 2007-01-04 |
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ID=37595184
Family Applications (1)
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PCT/JP2006/312499 WO2007000930A1 (ja) | 2005-06-29 | 2006-06-22 | 射出圧縮成形用金型 |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1897669B1 (ja) |
JP (1) | JP4809836B2 (ja) |
KR (1) | KR101318458B1 (ja) |
CN (1) | CN101218084B (ja) |
BR (1) | BRPI0613506A2 (ja) |
MY (1) | MY150110A (ja) |
RU (1) | RU2410238C2 (ja) |
TW (1) | TW200722269A (ja) |
WO (1) | WO2007000930A1 (ja) |
Cited By (4)
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JP5965092B2 (ja) * | 2014-04-04 | 2016-08-03 | 日本写真印刷株式会社 | 射出成形用金型及び樹脂成形品の製造方法 |
JP2017065168A (ja) * | 2015-09-30 | 2017-04-06 | 大日本印刷株式会社 | 加飾樹脂成形品の製造方法 |
WO2018003355A1 (ja) * | 2016-06-29 | 2018-01-04 | Nissha株式会社 | 加飾成形品の製造方法及び金型 |
WO2020162865A1 (en) * | 2019-02-04 | 2020-08-13 | Hewlett-Packard Development Company, L.P. | Molding objects |
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EP2295219B1 (en) * | 2009-09-10 | 2012-10-24 | Research In Motion Limited | Method and system for injection molding |
JP5456548B2 (ja) * | 2010-04-12 | 2014-04-02 | 住友重機械工業株式会社 | 樹脂成形金型及び射出成形方法 |
CN102528971A (zh) * | 2010-12-23 | 2012-07-04 | 欣旺达电子股份有限公司 | 一种弹性脱模装置 |
DE102011102830B4 (de) | 2011-05-30 | 2014-11-13 | Hbw-Gubesch Kunststoff-Engineering Gmbh | Herstellung von foliendekorierten Kunststoffteilen mit Durchbrüchen oder tiefen Einschnitten mittels IMD-Spritzguss |
US10464280B2 (en) | 2011-08-30 | 2019-11-05 | Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. | Trim component for vehicle interior |
CN107253336B (zh) * | 2011-08-30 | 2021-06-11 | 上海延锋金桥汽车饰件***有限公司 | 一种用于制造车辆装饰组件的方法以及一种用于车辆内部的装饰组件 |
JP5875411B2 (ja) * | 2012-03-06 | 2016-03-02 | 株式会社足立ライト工業所 | 射出圧縮成形法および射出圧縮成形用金型 |
JP5925601B2 (ja) * | 2012-05-30 | 2016-05-25 | 株式会社足立ライト工業所 | 射出成形方法および射出成形用金型 |
CN103786310B (zh) * | 2012-11-02 | 2016-05-18 | 佛山市王土汇铿印刷有限公司 | 一种imd压料成型模 |
TWI519404B (zh) * | 2012-12-04 | 2016-02-01 | 緯創資通股份有限公司 | 成型機及其操作方法 |
FR3018472B1 (fr) * | 2014-03-17 | 2017-01-06 | Snecma | Moule, en particulier moule d'injection et procede de moulage par injection utilisant un tel moule |
RU2596748C2 (ru) * | 2014-05-12 | 2016-09-10 | Государственное научное учреждение "Институт механики металлополимерных систем имени В.А. Белого Национальной академии наук Беларуси" (ИММС НАН Беларуси) | Горячеканальная форма для инжекционного прессования крупногабаритных цилиндрических изделий |
US10479007B2 (en) * | 2017-03-17 | 2019-11-19 | Rehrig Pacific Company | Injection molded component and method of injection molding |
CN110406022A (zh) * | 2018-04-27 | 2019-11-05 | 扬明光学股份有限公司 | 射出成型模具与使用其的射出成型装置与光学元件制造方法 |
WO2020006290A1 (en) | 2018-06-28 | 2020-01-02 | Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. | Vehicle trim component |
KR102460193B1 (ko) * | 2020-10-19 | 2022-10-31 | 미주정밀 주식회사 | 제품 취출 장치를 구비한 압축 확산 사출 성형 금형 |
KR20230114695A (ko) * | 2022-01-25 | 2023-08-01 | 김혁중 | 사출압을 이용한 게이트 자동 개폐형 핫런너 밸브장치 |
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- 2006-06-22 JP JP2007523419A patent/JP4809836B2/ja active Active
- 2006-06-22 KR KR1020087001671A patent/KR101318458B1/ko active IP Right Grant
- 2006-06-22 RU RU2008103267/05A patent/RU2410238C2/ru not_active IP Right Cessation
- 2006-06-22 CN CN2006800232816A patent/CN101218084B/zh active Active
- 2006-06-22 WO PCT/JP2006/312499 patent/WO2007000930A1/ja active Application Filing
- 2006-06-22 BR BRPI0613506-4A patent/BRPI0613506A2/pt not_active IP Right Cessation
- 2006-06-22 EP EP06767157.8A patent/EP1897669B1/en active Active
- 2006-06-23 MY MYPI20062989A patent/MY150110A/en unknown
- 2006-06-23 TW TW095122798A patent/TW200722269A/zh unknown
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Cited By (7)
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JP5965092B2 (ja) * | 2014-04-04 | 2016-08-03 | 日本写真印刷株式会社 | 射出成形用金型及び樹脂成形品の製造方法 |
JP2017065168A (ja) * | 2015-09-30 | 2017-04-06 | 大日本印刷株式会社 | 加飾樹脂成形品の製造方法 |
WO2018003355A1 (ja) * | 2016-06-29 | 2018-01-04 | Nissha株式会社 | 加飾成形品の製造方法及び金型 |
JP2018001489A (ja) * | 2016-06-29 | 2018-01-11 | Nissha株式会社 | 加飾成形品の製造方法及び金型 |
CN109311195A (zh) * | 2016-06-29 | 2019-02-05 | 日写株式会社 | 装饰成型品的制造方法和模具 |
US11090846B2 (en) | 2016-06-29 | 2021-08-17 | Nissha Co., Ltd. | Method for manufacturing decorative molding and mold for the method |
WO2020162865A1 (en) * | 2019-02-04 | 2020-08-13 | Hewlett-Packard Development Company, L.P. | Molding objects |
Also Published As
Publication number | Publication date |
---|---|
CN101218084B (zh) | 2011-05-25 |
BRPI0613506A2 (pt) | 2011-01-11 |
TWI376303B (ja) | 2012-11-11 |
JP4809836B2 (ja) | 2011-11-09 |
KR101318458B1 (ko) | 2013-10-16 |
TW200722269A (en) | 2007-06-16 |
RU2008103267A (ru) | 2009-08-10 |
EP1897669A4 (en) | 2010-09-01 |
CN101218084A (zh) | 2008-07-09 |
RU2410238C2 (ru) | 2011-01-27 |
KR20080041629A (ko) | 2008-05-13 |
MY150110A (en) | 2013-11-29 |
EP1897669A1 (en) | 2008-03-12 |
JPWO2007000930A1 (ja) | 2009-01-22 |
EP1897669B1 (en) | 2018-08-15 |
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