WO2018016323A1 - 金型装置 - Google Patents

金型装置 Download PDF

Info

Publication number
WO2018016323A1
WO2018016323A1 PCT/JP2017/024716 JP2017024716W WO2018016323A1 WO 2018016323 A1 WO2018016323 A1 WO 2018016323A1 JP 2017024716 W JP2017024716 W JP 2017024716W WO 2018016323 A1 WO2018016323 A1 WO 2018016323A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
molded product
cavity
primary
side mold
Prior art date
Application number
PCT/JP2017/024716
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宏弥 伊藤
剛俊 井上
Original Assignee
株式会社小糸製作所
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 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to CN201780041982.0A priority Critical patent/CN109562547A/zh
Priority to JP2018528478A priority patent/JP7036721B2/ja
Publication of WO2018016323A1 publication Critical patent/WO2018016323A1/ja

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
    • B29C45/16—Making multilayered or multicoloured 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
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated 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

Definitions

  • the present invention relates to a mold apparatus.
  • a technique for producing a two-color molded product by forming a primary molded product and then forming a secondary molded product around the primary molded product is known.
  • the two-color molding technique is used, for example, when producing a light-transmitting cover for a lamp such as a headlamp of a vehicle (see Patent Document 1).
  • two colors are used by using a rotating mold in which a pair of cavity molds are fixed to a rotating member arranged to be rotatable around an axis passing between the primary core side mold and the secondary core side mold.
  • a technique for injection molding a molded product has been devised (see Patent Document 2).
  • the molded product is often held in the core mold when the mold is opened. Therefore, when the common mold used for forming the primary molded product and the secondary molded product is a cavity mold, a mechanism for holding at least the primary molded product in the cavity mold is required. Become. For example, in Patent Document 2, a locking part for locking the primary molded product to the cavity mold is provided so that the primary molded product does not remain in the core mold when the mold is opened. .
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a new technique for holding, for example, a primary molded product used for a two-color molded product in a cavity mold.
  • a mold apparatus holds an incomplete molded product before a two-color molded product among a plurality of molds for manufacturing a two-color molded product by injection molding. And a primary core mold combined with the cavity mold, and a biasing mechanism that is provided in the primary core mold and biases the unfinished molded product toward the cavity mold.
  • the unfinished molded product when opening the cavity mold and the primary core mold, the unfinished molded product is biased toward the cavity mold, thereby holding the unfinished molded product in the cavity mold. be able to.
  • the urging mechanism is incomplete in a state in which the cavity mold and the primary core mold are combined, a contact portion that contacts the cavity mold, and a combination of the cavity mold and the primary core mold.
  • You may have an inner surface part which comprises some inner surfaces of the primary cavity according to a molded article.
  • the incomplete molded product may be biased toward the cavity mold on the inner surface portion.
  • the inner surface urges the incomplete molded product while the abutting portion contacts the cavity mold. It can be held in a cavity mold.
  • a secondary core mold combined with a cavity mold holding an incomplete molded product may be further provided.
  • the secondary core mold is configured so that a secondary cavity corresponding to the two-color molded product is formed in combination with the cavity mold, and the secondary cavity is not in contact with the inner surface portion.
  • the shape which the part of a completed molded product exposes may be sufficient.
  • a part of the incomplete molded product in which the boundary between the urging mechanism and the mold is transferred as a line is covered with the secondary molded product, so that the line is difficult to be visually recognized from the outside.
  • the biasing mechanism may be arranged as a nest in a recess provided in the primary core mold. Thereby, the urging mechanism can be easily arranged without greatly changing the mold configuration.
  • a primary molded product used for a two-color molded product can be held in the cavity mold.
  • FIG. 1A is a schematic diagram showing a filling process of the first color in a manufacturing process of a two-color molded product
  • FIG. 1B is a primary molding by an urging mechanism according to the present embodiment when the mold is opened. It is a schematic diagram which shows the state which hold
  • FIG. 2A is a schematic diagram showing the rotation process of the holding mold holding the primary molded product in the manufacturing process of the two-color molded product, and FIG. 2B is shown in FIG. 2A when the mold is opened. It is a schematic diagram which shows the state which clamped the metal mold
  • FIG. 3A is a schematic diagram illustrating a filling process of the second color in the manufacturing process of the two-color molded product, and FIG.
  • FIG. 3B is a process of taking out the secondary molded product from the mold in the manufacturing process of the two-color molded product. It is a schematic diagram which shows.
  • FIG. 4A schematically shows a cross section near the urging mechanism when the mold is clamped
  • FIG. 4B schematically shows a cross section near the urging mechanism when the mold is opened.
  • FIG. 5A is a schematic view of the movable part of the urging mechanism and the primary molded product as seen from the cavity side mold
  • FIG. 5B is a schematic view of the primary molded product as seen from the end face side.
  • FIG. 5C is a schematic diagram illustrating a state where the end surface of the primary molded product is covered with the secondary molded product.
  • FIG. 1A is a schematic diagram showing a filling process of the first color in a manufacturing process of a two-color molded product
  • FIG. 1B is a primary molding by an urging mechanism according to the present embodiment when the mold is opened.
  • It is a schematic diagram which shows the state which hold
  • FIG. 2A is a schematic diagram showing the rotation process of the holding mold holding the primary molded product in the manufacturing process of the two-color molded product
  • FIG. 2B is shown in FIG. 2A when the mold is opened.
  • FIG. 3A is a schematic diagram illustrating a filling process of the second color in the manufacturing process of the two-color molded product
  • FIG. 3B is a process of taking out the secondary molded product from the mold in the manufacturing process of the two-color molded product. It is a schematic diagram which shows.
  • a mold apparatus 100 As shown in FIG. 1 (a), a mold apparatus 100 according to the present embodiment is configured as a so-called opposed type two-color molding mold.
  • the mold apparatus 100 includes a primary core-side mold 10 and a secondary core-side mold 12 that are disposed facing each other on the X axis that extends in the horizontal direction, and the primary core-side mold 10 and the secondary core.
  • the rotating member 14 disposed between the core-side molds 12 and configured to be rotatable about the Y axis extending in the vertical direction perpendicular to the X axis and the rotating member 14 in a state of being back to back with the Y axis interposed therebetween.
  • a pair of fixed cavity side molds 16a and 16b having the same shape, a movable platen 18 that supports the primary core side die 10, and a movable platen 20 that supports the secondary core side die 12 are provided. ing.
  • the primary core side mold 10 and the secondary core side mold 12 are so-called movable molds, and the cavity side molds 16a and 16b are so-called fixed molds.
  • the movable platen 18 can move in the X-axis direction with respect to the rotating member 14, and the movable platen 20 can move in the X-axis direction with respect to the rotating member 14.
  • the mold apparatus 100 includes a primary space as a primary cavity formed between a primary core side mold 10 and a cavity side mold 16a that are in contact with each other by mold clamping.
  • a transparent resin material 24 supplied from the heating cylinder 22 supported by the movable platen 18 is injected into the part C 1 to form a primary molded product 26.
  • the primary core side mold 10 and the secondary core side mold 12 and the pair of cavity side molds 16a and 16b are opened.
  • the primary molded product 26 is urged toward the cavity-side mold 16a by an urging mechanism 38, which will be described later, while being held by the cavity-side mold 16a.
  • the next core side mold 10 is detached.
  • the rotating member 14 is rotated 180 ° around the Y axis.
  • the cavity side mold 16a (16b) functions as a holding mold that holds the primary molded product 26 when the mold is opened.
  • the primary core side mold 10 and the secondary core side mold 12 and the pair of cavity side molds 16b and 16a are clamped.
  • a primary space C1 is formed between the primary core side mold 10 and the cavity side mold 16b, and a secondary cavity is formed between the secondary core side mold 12 and the cavity side mold 16a.
  • Secondary space portion C2 is formed.
  • the colored (black) resin material 30 supplied from the heating cylinder 28 is injected into a portion other than the primary molded product 26 in the secondary space C2. Then, the secondary molded product 32 is molded.
  • the secondary space C2 is formed by combining the secondary core side mold 12 and the cavity side mold 16a. Thereby, the two-color molded product 34 in which the primary molded product 26 and the secondary molded product 32 are integrated is manufactured.
  • the two-color molded product 34 is manufactured, and a transparent resin material 24 is injected into the primary space C1 formed by combining the primary core side mold 10 and the cavity side mold 16b. Next molded product 26 is formed.
  • the primary core side mold 10 and the secondary core side mold 12 and the pair of cavity side molds 16b and 16a are opened.
  • the two-color molded product 34 is in a state of being attached to the secondary core side mold 12 due to shrinkage of the resin during molding.
  • the two-color molded product 34 is taken out. This extraction is performed by extruding the two-color molded product 34 attached to the secondary core side mold 12 by the extrusion pin 36 and grasping it with an unillustrated unloader.
  • the rotating member 14 is rotated 180 ° around the Y axis, and the primary core side mold 10 and the secondary core side mold 12 and the pair of cavity side molds 16a and 16b are clamped. Thereafter, the steps shown in FIGS. 1A to 3B are repeated to continuously manufacture the two-color molded product 34.
  • FIG. 4A schematically shows a cross section near the urging mechanism when the mold is clamped
  • FIG. 4B schematically shows a cross section near the urging mechanism when the mold is opened.
  • FIG. The biasing mechanism 38 shown in FIG. 4 (a) is an enlarged view of the area A in FIG. 1 (a)
  • the biasing mechanism 38 shown in FIG. 4 (b) is the area B in FIG. 1 (b).
  • the urging mechanism 38 shown in FIG. 4A urges the primary molded product 26 toward the cavity side mold 16a. Further, the urging mechanism 38 is disposed as a nest in a recess 40 provided in the primary core side mold 10. Thereby, the urging mechanism 38 can be easily arranged without greatly changing the mold configuration.
  • the urging mechanism 38 includes a cylindrical movable portion 42, a cylindrical restriction portion 44 that restricts movement of the movable portion 42, a bolt 46 that fixes the restriction portion 44 to the primary core side mold 10, and a movable portion. And a spring 48 for moving 42 toward the cavity side mold 16a.
  • the movable part 42 has an end face 50 that faces the cavity side mold 16a (16b).
  • the end surface 50 includes a contact portion 50a that contacts the cavity-side mold 16a and a cavity-side mold 16a in a state where the cavity-side mold 16a and the primary core-side mold 10 are combined. And an inner surface portion 50b that constitutes the inner surface of the primary space C1 corresponding to the primary molded product 26 in a state where the primary core side mold 10 is combined.
  • the biasing mechanism 38 performs primary molding at the inner surface portion 50b when the cavity side mold 16a and the primary core side mold 10 are opened.
  • the product 26 is configured to be biased toward the cavity side mold 16a.
  • the inner surface part 50b attaches the primary molded product 26 while the contact part 50a contacts the cavity side mold 16a. Therefore, the primary molded product 26 can be held in the cavity side mold 16a.
  • the urging mechanism 38 is disposed as a nest with respect to the recess 40.
  • the end face 50 of the movable portion 42 is ideally composed of a surface continuous with the surface of the primary core side mold 10 in a state where the primary core side mold 10 and the cavity side mold 16a are clamped. Has been. However, it is difficult to completely eliminate the step between the end face 50 and the surface of the primary core side mold 10. It is also impossible to make the gap between the movable portion 42 and the inner wall 40a of the recess 40 zero.
  • FIG. 5A is a schematic view of the movable portion 42 of the urging mechanism and the primary molded product 26 as seen from the cavity side mold, and FIG. 5B is seen from the end surface 26 a side of the primary molded product 26.
  • FIG. 5C is a schematic diagram showing a state where the end surface 26 a of the primary molded product 26 is covered with the secondary molded product 32.
  • a nesting line L corresponding to the boundary R with the mold 10 is formed. Such a nesting line L is preferably less conspicuous in consideration of the design of the product.
  • the secondary core side mold 12 in the mold apparatus 100 is combined with the cavity side mold 16a into the two-color molded product 34.
  • a corresponding secondary space C2 is formed.
  • the secondary space portion C2 has a shape in which a portion of the end surface 26a of the primary molded product 26 that is in contact with the inner surface portion 50b is exposed.
  • the end surface 26a of the primary molded product 26 to which the boundary between the urging mechanism 38 and the primary core side mold 10 is transferred as a nesting line L is formed into a secondary molded product as shown in FIG. Since it is covered with 32, it becomes difficult to visually recognize the nesting line L from the outside.
  • the present invention can be used for a mold apparatus.

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)
PCT/JP2017/024716 2016-07-19 2017-07-05 金型装置 WO2018016323A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780041982.0A CN109562547A (zh) 2016-07-19 2017-07-05 模具装置
JP2018528478A JP7036721B2 (ja) 2016-07-19 2017-07-05 金型装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-141686 2016-07-19
JP2016141686 2016-07-19

Publications (1)

Publication Number Publication Date
WO2018016323A1 true WO2018016323A1 (ja) 2018-01-25

Family

ID=60993301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/024716 WO2018016323A1 (ja) 2016-07-19 2017-07-05 金型装置

Country Status (3)

Country Link
JP (1) JP7036721B2 (zh)
CN (1) CN109562547A (zh)
WO (1) WO2018016323A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005271289A (ja) * 2004-03-23 2005-10-06 Gifu Plast Ind Co Ltd 合成樹脂射出成形品の成形方法及び射出成形用金型装置
JP2009160752A (ja) * 2007-12-28 2009-07-23 Mitsuboshi Kaseihin Kk 成形型及び樹脂成形品の製造方法
JP2011230345A (ja) * 2010-04-27 2011-11-17 Meiki Co Ltd 複合成形品用射出成形機およびその成形方法
JP2014168936A (ja) * 2013-03-05 2014-09-18 Koito Mfg Co Ltd 射出成形方法および金型ならびに二色成形品
JP2015063091A (ja) * 2013-09-25 2015-04-09 ダイキョーニシカワ株式会社 樹脂製窓の回転２色射出成形装置
JP2016215556A (ja) * 2015-05-25 2016-12-22 キヤノン株式会社 液体吐出ヘッドの製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08197578A (ja) * 1995-01-30 1996-08-06 Shin Etsu Polymer Co Ltd 複合成形品の成形方法およびその装置
JP5401076B2 (ja) 2008-10-28 2014-01-29 日本写真印刷株式会社 ２色成形同時絵付け品の成形装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005271289A (ja) * 2004-03-23 2005-10-06 Gifu Plast Ind Co Ltd 合成樹脂射出成形品の成形方法及び射出成形用金型装置
JP2009160752A (ja) * 2007-12-28 2009-07-23 Mitsuboshi Kaseihin Kk 成形型及び樹脂成形品の製造方法
JP2011230345A (ja) * 2010-04-27 2011-11-17 Meiki Co Ltd 複合成形品用射出成形機およびその成形方法
JP2014168936A (ja) * 2013-03-05 2014-09-18 Koito Mfg Co Ltd 射出成形方法および金型ならびに二色成形品
JP2015063091A (ja) * 2013-09-25 2015-04-09 ダイキョーニシカワ株式会社 樹脂製窓の回転２色射出成形装置
JP2016215556A (ja) * 2015-05-25 2016-12-22 キヤノン株式会社 液体吐出ヘッドの製造方法

Also Published As

Publication number Publication date
JP7036721B2 (ja) 2022-03-15
CN109562547A (zh) 2019-04-02
JPWO2018016323A1 (ja) 2019-05-09

Similar Documents

Publication Publication Date Title
JP2014168936A (ja) 射出成形方法および金型ならびに二色成形品
JP6334616B2 (ja) 中空成形品の成形方法および中空成形品の成形装置
JP5300513B2 (ja) 射出成形体の製造方法および射出成形体の製造装置
KR101821859B1 (ko) 광학 소자의 제조를 위한 성형 공구 및 방법
JP2018065281A (ja) 多層成形レンズとその製造方法
JPS6033657B2 (ja) 射出成形用金型
KR101339032B1 (ko) 금형 내 구조적 취약부분을 보강하기 위한 슬라이딩 코어를 갖는 이중사출금형
JP2007216622A (ja) 樹脂成形品の製造方法
WO2018016323A1 (ja) 金型装置
JP4658651B2 (ja) 射出成形体、射出成形体の製造方法および製造装置
JPH0615685A (ja) 射出成形方法及び射出成形機
JP2019001109A (ja) 二色成形品の製造方法および二色成形金型
JP4815331B2 (ja) 射出成形体の製造方法および製造用の金型
JP2018083357A5 (zh)
JP6837765B2 (ja) 金型装置
JP2008126498A (ja) 射出成形体の製造方法および製造用の金型
KR20220085875A (ko) 파팅라인이 없는 사출 성형품 제조장치
JPH11170296A (ja) インサート部材を有する中空製品の成形方法およびその装置
JP4541386B2 (ja) 射出成型体の製造装置
JP4014141B2 (ja) 射出成型体の製造装置
JP2006347809A (ja) 光学素子および光学素子成形金型
JP3782658B2 (ja) 射出成形用金型及び射出成形方法
KR101986574B1 (ko) 클램프 및 조절장치를 가지는 금형유닛
JP2001300950A (ja) 真空注型用シリコン型
KR20120040058A (ko) 금형

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018528478

Country of ref document: JP

Kind code of ref document: A

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

Ref document number: 17830843

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17830843

Country of ref document: EP

Kind code of ref document: A1