WO2010140251A1 - Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule - Google Patents

Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule Download PDF

Info

Publication number
WO2010140251A1
WO2010140251A1 PCT/JP2009/060331 JP2009060331W WO2010140251A1 WO 2010140251 A1 WO2010140251 A1 WO 2010140251A1 JP 2009060331 W JP2009060331 W JP 2009060331W WO 2010140251 A1 WO2010140251 A1 WO 2010140251A1
Authority
WO
WIPO (PCT)
Prior art keywords
synthetic resin
mold
resin sheet
die
molding
Prior art date
Application number
PCT/JP2009/060331
Other languages
English (en)
Japanese (ja)
Inventor
浩司 山本
公靖 吉坂
Original Assignee
株式会社サカイヤ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社サカイヤ filed Critical 株式会社サカイヤ
Priority to PCT/JP2009/060331 priority Critical patent/WO2010140251A1/fr
Publication of WO2010140251A1 publication Critical patent/WO2010140251A1/fr

Links

Images

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
    • B29C45/1418—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 inserts being deformed or preformed, e.g. by the injection pressure
    • 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
    • B29C45/03—Injection moulding apparatus
    • B29C45/04—Injection moulding apparatus using movable moulds or mould halves
    • B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert

Definitions

  • the present invention relates to a molding die for manufacturing a synthetic resin molded product using an in-mold molding method and a molding method for manufacturing a synthetic resin molded product using an in-mold molding method. More specifically, the present invention relates to a molding die and a manufacturing method of a synthetic resin molded product that can improve the production efficiency of the synthetic resin molded product using an in-mold molding method.
  • synthetic resin molded products that are directly touched by the user's eyes or directly touched by the user have been provided with a design surface having a smooth surface on the surface of the synthetic resin in order to improve decorativeness and touch. It is coming.
  • Such synthetic resin molded products include automobile interior parts and home appliances, or accessory parts for automobiles and home appliances.
  • a synthetic resin sheet having a printed layer that forms the design surface is used as a skin material on the inner surface of the mold in advance.
  • the synthetic resin molded product having a beautiful design surface is manufactured by injecting the molten synthetic resin to the back side of the synthetic resin sheet, and fusing and integrating the synthetic resin sheet and the molten synthetic resin.
  • a manufacturing method called a molding method has been adopted.
  • the in-mold molding method has a high degree of design freedom and can maintain a high design position accuracy.
  • Transparent design also known as backlighting, the design part where the printed design and characters appear brightly when viewed from the front and light from the back or side of the molded product
  • it has an advantage that it is possible to adjust the degree of light transmission of the transmissive design part by controlling the printing state of the pattern and characters. Also, by improving the manufacturing conditions of the in-mold molding method, it is possible to make the weld lines and gate marks generated in the synthetic resin molded product invisible.
  • the synthetic resin sheet provided with the printed layer forming the design surface is arranged in advance so as to be along the inner surface of the injection mold. Therefore, before the injection molding step, the synthetic resin sheet needs to be drawn in advance along the inner surface of the injection mold and shaped in advance. Further, after shaping the synthetic resin sheet, the shaped synthetic resin sheet needs to be trimmed and cut and separated so as to have a predetermined shape and size. (This trimming can also be performed after injection molding of the molten synthetic resin.) Furthermore, when molding a synthetic resin molded product, the synthetic resin sheet shaped each time on the inner surface of the injection mold is placed in a predetermined position. It was necessary to arrange after alignment. Such a complicated process has been an obstacle for reducing the manufacturing cost of a resin product molded by the in-mold molding method.
  • the present invention has been made to solve such a problem. That is, a mold or a manufacturing method for manufacturing using an in-mold molding method in which a synthetic resin sheet having a printed layer forming a design surface is used as a skin material, and a step of shaping the synthetic resin sheet;
  • An object of the present invention is to provide a synthetic resin molding die and a synthetic resin molding method capable of simultaneously performing the step of injecting a molten synthetic resin.
  • a synthetic resin molding die and a synthetic resin molding method capable of simultaneously trimming the molded synthetic resin sheet portion and cutting and separating from the synthetic resin sheet main body are provided. This is the issue.
  • an object is to automatically and continuously supply the synthetic resin sheet and the shaped synthetic resin sheet to a predetermined position of the mold.
  • the synthetic resin sheet is arranged in advance along the inner surface of the mold and melted in a space defined by the mold and the synthetic resin sheet.
  • a mold for injecting a synthetic resin and molding a synthetic resin molded product integrated with the synthetic resin sheet comprising a first mold and a second mold, A first area and a second area are arranged in each of the first mold and the second mold, and a drawing mold for shaping the synthetic resin sheet is arranged in the first area.
  • a molded synthetic resin sheet is arranged, and then a molding die for injecting a molten synthetic resin is used as a synthetic resin molding die.
  • the molding die disposed in the second region is a synthetic resin molded from a synthetic resin sheet.
  • the synthetic resin molding die according to claim 1 or 2 in the first mold and the second mold, the position of the synthetic resin sheet A synthetic resin molding die having a configuration in which at least one protrusion portion for matching and at least one recess portion corresponding to the protrusion is provided.
  • the synthetic resin sheet is composed of a continuous synthetic resin sheet.
  • the synthetic resin sheet is arranged in advance along the inner surface of the mold, and the molten synthetic resin is injected into a space defined by the mold and the synthetic resin sheet.
  • a step of feeding a synthetic resin sheet between a first mold and a second mold, and the first mold and the second mold The step of shaping the synthetic resin sheet with the drawing die provided in the first area of the first mold and the shaping mold provided in the second area of the first mold and the second mold Placing the molded synthetic resin sheet and then injecting a molten synthetic resin; and a synthetic resin molding method comprising: shaping the synthetic resin sheet with the drawing mold; and And placed the shaped synthetic resin sheet Thereafter, the synthetic resin molding method is configured to simultaneously perform the step of injecting the molten synthetic resin.
  • the synthetic resin molding method according to claim 6 after placing the shaped synthetic resin sheet into the mold, the molten synthetic resin is added.
  • the step of injecting is a synthetic resin molding method configured to further include a step of cutting and separating a portion of the synthetic resin sheet formed from the synthetic resin sheet.
  • the step of feeding the synthetic resin sheet between the first mold and the second mold includes The synthetic resin molding method further includes a step of aligning the synthetic resin sheet with respect to the first mold and the second mold.
  • the synthetic resin molding method according to claim 6 or 7, wherein the synthetic resin sheet used in the method is a continuous synthetic resin sheet It was a method.
  • a synthetic resin molding die and a synthetic resin molding method capable of simultaneously performing a step of shaping a synthetic resin sheet and a step of injecting a molten synthetic resin.
  • the synthetic resin molding mold and the synthetic resin molding capable of trimming the molded synthetic resin sheet portion and cutting and separating from the synthetic resin sheet main body. It became possible to provide a method.
  • the synthetic resin sheet was shaped and shaped to the position of the drawing die (first region) and the mold (second region)
  • the synthetic resin sheet can be automatically and continuously supplied while aligning with the mold.
  • FIG. 1 shows a basic form of a synthetic resin molding die according to the present invention.
  • FIG. 2 shows a cross section AA of the synthetic resin molding die shown in FIG.
  • FIG. 3 illustrates a process for molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 4 illustrates a process of molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 5 illustrates a process of molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 6 illustrates a process for molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 7 illustrates a process of molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 8 illustrates a process of molding a synthetic resin molded product using the synthetic resin molding die according to the present invention.
  • FIG. 9 is a diagram showing details of a synthetic resin molding die provided with a blade for trimming
  • FIG. 1 shows a basic form of a synthetic resin molding die according to the present invention.
  • FIG. 2 shows a cross section AA of the synthetic resin molding die shown in FIG.
  • the synthetic resin molding die according to the present invention includes a first die (core die) 20 and a second die (cavity die) 30.
  • Each of the first mold (core mold) 20 and the second mold (cavity mold) 30 has a first region 100 provided on the upper stage side of the mold and a second area provided on the lower stage side of the mold.
  • the area 200 is included.
  • a drawing die for shaping the synthetic resin sheet is arranged.
  • a synthetic resin sheet used in an in-mold molding method (a molding method for producing a synthetic resin molded product by fusing and integrating a synthetic resin sheet and a molten synthetic resin) is previously matched with the shape of the molding die.
  • This is a mold for shaping.
  • a synthetic resin sheet 41 is shaped by a combination of a male die 21 and a female die 31 as shown in FIG.
  • the first region 100 is provided with at least one protrusion 35 for positioning the synthetic resin sheet 41 for shaping by drawing and at least one recess 25 corresponding thereto.
  • the recess 25 is provided on the first mold 20 side and the protrusion 35 is provided on the second mold 30 side, but the protrusion 35 is provided on the first mold 20 side.
  • the recess 25 may be provided on the second mold 30 side.
  • a molding die for molding a synthetic resin molded product by an in-mold molding method is arranged.
  • This mold comprises a core part 23 provided on the first mold 20 side and a cavity part 33 provided on the second mold 30 side.
  • An injection molding nozzle, a sprue 32, and a gate 22 are provided as a passage for press-fitting molten synthetic resin.
  • a synthetic resin sheet 41 shaped in the drawing die arranged in the first region 100 is inserted into the cavity portion 33 of the mold, and is formed by the shaped synthetic resin sheet 41 and the core portion 23.
  • a molten synthetic resin is press-fitted into the space, and a synthetic resin molded product is formed.
  • an ejector pin 24 for taking out the molded product from the mold may be provided in the second region of the synthetic resin molding die.
  • the temperature of the synthetic resin sheet for drawing is heated to an appropriate temperature, and the temperature profile of the molten synthetic resin to be press-fitted is appropriately maintained.
  • a device for controlling the temperature of the mold may be added.
  • a pattern or a character may be printed in advance in order to give a decorative property. This printing may be printed on only one side of the synthetic resin sheet 41, or may be printed on both sides to give a three-dimensional effect. In the case of backlighting (also referred to as transparent design), a translucent or non-translucent pattern or character is printed simultaneously on the backlit area (transparent design portion) of the synthetic resin sheet. You can also.
  • a drawing die is arranged in the first region 100 provided on the upper side of the die, and a molding die is provided in the second region 200 provided on the lower side of the die.
  • the present invention is not limited to this, and a forming die may be arranged in the first region 100 and a drawing die may be arranged in the second region 200.
  • the synthetic resin molding die shown in FIGS. 1 and 2 has a configuration in which four identical parts are taken, that is, a configuration in which four sets of the same shape drawing die and four sets of the same shape molding are arranged.
  • the present invention is not limited to this. ⁇ ⁇ One set each of the same shape of the drawing die and molding die may be arranged, or a plurality of drawing die sets having different shapes and a plurality of molding die sets corresponding thereto may be provided.
  • FIG. 3 shows a state in which the synthetic resin sheet 41 is set in the first region 100 where the drawing die of the second mold 30 is arranged.
  • the synthetic resin sheet 41 and the second mold 30 are fitted in advance by providing holes in the synthetic resin sheet 41 in accordance with the projections 35 provided on the second mold 30 side. May be aligned.
  • FIG. 4 shows that the first mold 20 and the second mold 30 were clamped after setting the synthetic resin sheet 41 in the first region where the drawing mold of the second mold 30 was arranged.
  • the synthetic resin sheet 41 is shaped by a combination of the male mold 21 and the female mold 31.
  • FIG. 5 shows a state in which the first mold 20 and the second mold 30 are released after shaping the synthetic resin sheet 41.
  • the shaped synthetic resin sheet 41 is taken out from the first region 100 where the aperture die is arranged.
  • FIG. 6 shows that the molded synthetic resin sheet 41 taken out from the first region 100 where the drawing die is arranged is set in the second region 200 where the molding die is arranged, and the first drawing die is further arranged.
  • the state where a new synthetic resin sheet 41 is set in the region 100 is shown.
  • the shaped synthetic resin sheet 41 and the new synthetic resin sheet 41 are fitted into the projections 35 provided on the second mold 30 side and the holes provided in the synthetic resin sheet, so that the second Alignment with the mold 30 may be performed.
  • FIG. 7 shows that the already formed synthetic resin sheet 41 is set in the second area where the mold of the second mold 30 is arranged, and the first area where the drawing die of the second mold 30 is arranged.
  • a state where the first mold 20 and the second mold 30 are clamped after the new synthetic resin sheet 41 is set is shown.
  • the new synthetic resin sheet 41 is shaped by the combination of the male mold 21 and the female mold 31.
  • the molten synthetic resin is used for injection molding.
  • the space formed by the synthetic resin sheet 41 press-fitted through the nozzle, sprue 32 and gate 22 and the core portion 23 on the second mold 30 side is filled with the molten synthetic resin 42.
  • the molten synthetic resin 42 is cooled in the mold, it is solidified and a synthetic resin molded product integrated with the synthetic resin sheet is completed.
  • FIG. 8 shows a state in which the first mold 20 and the second mold 30 are released after the molten synthetic resin 42 is cooled and solidified in the mold.
  • the synthetic resin molded product integrated with the synthetic resin sheet is taken out from the mold, and further, the shaped synthetic resin sheet 41 is taken out from the first region 100 where the drawing die is arranged.
  • the synthetic resin molded product may be extruded from the mold by using the ejector pins 24 arranged in the second region of the first mold 20.
  • the synthetic resin molded product integrated with the synthetic resin sheet and the synthetic resin sheet can be formed at the same time.
  • FIG. 9 is a view showing details of the synthetic resin molding die in such a case.
  • a blade 36 is arranged on the outer periphery of the cavity portion 33 provided in the second region 200.
  • the first mold 20 may be provided with a relief groove of the blade 36 in correspondence with the blade 36 provided in the second mold 30.
  • a synthetic resin molded product integrated with the synthetic resin sheet 41 is molded. In this case, it becomes possible to complete the trimming of the synthetic resin sheet 41 in the stage of clamping the first mold 20 and the second mold 30, and the portion of the synthetic resin sheet shaped from the synthetic resin sheet Can be cut and separated.
  • Each consisted of a separate sheet.
  • a continuous synthetic resin sheet for example, a continuous synthetic resin sheet 41 wound in a roll shape.
  • both ends of the continuous synthetic resin sheet 41 wound in a roll shape are provided with holes for sprockets at predetermined intervals in advance, and the second mold 30 and the second mold 30 are aligned with the holes for the sprockets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention se rapporte à une matrice de moulage pour objets moulés en résine synthétique, qui peut améliorer la productivité d'objets moulés en résine synthétique à l'aide d'un processus de moulage dans le moule. L'invention se rapporte également à un procédé de production d'objets moulés en résine synthétique. Une matrice destinée à mouler un objet moulé en résine synthétique intégré à une feuille en résine synthétique se compose d'une première matrice et d'une seconde matrice. La première matrice et la seconde matrice comportent respectivement une première région et une seconde région. La première région est pourvue d'une matrice d'emboutissage destinée au moulage de la feuille en résine synthétique, et la seconde région est pourvue d'une matrice de moulage destinée au moulage par injection d'une résine synthétique fondue après mise en place de la feuille en résine synthétique moulée dans celle-ci.
PCT/JP2009/060331 2009-06-05 2009-06-05 Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule WO2010140251A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/060331 WO2010140251A1 (fr) 2009-06-05 2009-06-05 Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/060331 WO2010140251A1 (fr) 2009-06-05 2009-06-05 Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule

Publications (1)

Publication Number Publication Date
WO2010140251A1 true WO2010140251A1 (fr) 2010-12-09

Family

ID=43297397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/060331 WO2010140251A1 (fr) 2009-06-05 2009-06-05 Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule

Country Status (1)

Country Link
WO (1) WO2010140251A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003220623A (ja) * 2002-01-30 2003-08-05 Hoshi Seisakusho:Kk 三次曲面成形表示板の成形方法
JP2007320202A (ja) * 2006-06-01 2007-12-13 Koto Engraving Corp インモールド成形方法及びインモールド成形用金型及びインモールド成形装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003220623A (ja) * 2002-01-30 2003-08-05 Hoshi Seisakusho:Kk 三次曲面成形表示板の成形方法
JP2007320202A (ja) * 2006-06-01 2007-12-13 Koto Engraving Corp インモールド成形方法及びインモールド成形用金型及びインモールド成形装置

Similar Documents

Publication Publication Date Title
CN101883478A (zh) 电子装置壳体、制造该壳体的模具及该壳体制造方法
CA2241509A1 (fr) Moule a injection pour le sursurmoulage d'articles et machine de moulage par injection et methode correspondante
JP2006035858A (ja) レリーフシンボルを有する飾り付き装飾部品
EP1435285A4 (fr) Procede de production de moulages en plastique avec motifs textures
US7875339B2 (en) Thermoplastic resin casing and method for fabricating the same
CN102917560A (zh) 电子装置壳体及其制造方法
JP5790513B2 (ja) 加飾成形品の製造方法
KR20160000996U (ko) 사출 성형용 금형
JP6376035B2 (ja) 加飾成形品の製造方法
US10005249B2 (en) Method of manufacturing an eyeglass lens with gradation and eyeglass lens
WO2010140251A1 (fr) Matrice pour moulage continu dans le moule et procédé de moulage continu dans le moule
CN109895344B (zh) 一种汽车轮眉的加工工艺
JPH0699458A (ja) 両面転写射出成形品の製造方法及び成形金型並びに射出成形品
JP2007283704A (ja) 樹脂成形体及びその製造方法
KR101454159B1 (ko) 필름 인서트 사출성형장치 및 그 방법
JP6908985B2 (ja) インモールドラベル付きブロー容器及びインモールドラベル及び並びにインモールドラベル付きブロー容器の製造方法
JP4073470B1 (ja) フィルムインサート成形品の製造方法
KR930702144A (ko) 다층 성형품의 제조방법
JP5668395B2 (ja) 表面シートを用いたインサート成形用金型及び成形物の製造方法
KR20080110315A (ko) 다색상 안경다리의 제조방법
KR20160094796A (ko) 멀티 사출금형
JP7093229B2 (ja) 加飾成形体の製造方法
CN208084809U (zh) 一种片材切边模具及具有片材切边模具的注塑系统
CN216635194U (zh) 一种汽车车灯快速成型模具
CN220297678U (zh) 一种汽车b柱上饰板成型模具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09845534

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DD 14/03/2012)

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 09845534

Country of ref document: EP

Kind code of ref document: A1