WO2019039395A1 - Article moulé par insertion - Google Patents

Article moulé par insertion Download PDF

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Publication number
WO2019039395A1
WO2019039395A1 PCT/JP2018/030485 JP2018030485W WO2019039395A1 WO 2019039395 A1 WO2019039395 A1 WO 2019039395A1 JP 2018030485 W JP2018030485 W JP 2018030485W WO 2019039395 A1 WO2019039395 A1 WO 2019039395A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
positioning pin
bus bar
mold
fastening member
Prior art date
Application number
PCT/JP2018/030485
Other languages
English (en)
Japanese (ja)
Inventor
佑次 伊藤
Original Assignee
住友電装株式会社
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 住友電装株式会社 filed Critical 住友電装株式会社
Priority to CN201880053686.7A priority Critical patent/CN110997271B/zh
Priority to JP2019537599A priority patent/JP6819914B2/ja
Publication of WO2019039395A1 publication Critical patent/WO2019039395A1/fr

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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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/24—Feeding the material into 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

Definitions

  • the technology disclosed by the present specification relates to an insert-molded article.
  • Patent Document 1 a positioning structure described in Japanese Utility Model Laid-Open Publication No. 2-82506 (the following Patent Document 1) has been known as a tool for performing insert molding in a state where an insert nut is fitted to a positioning pin.
  • a positioning pin is placed in a recess carved in the lower mold, and an insert nut can be fitted to the positioning pin.
  • An internal thread is provided inside the insert nut.
  • the internal thread when the insert nut is fitted to the positioning pin, the internal thread may interfere with the positioning pin, and the internal thread may be damaged.
  • the insert molded article disclosed by the present specification is an insert molded article formed by a mold provided with a positioning pin projecting from the lower mold toward the upper mold, and a counterbore in which the positioning pin is inserted.
  • a metal fastening member provided with a portion opened downward, and a resin housing integrally formed on the outer surface of the fastening member, the fastening member continuing upward from the upper end of the counterbore
  • the positioning pin has a vertical dimension equal to or less than the vertical dimension of the counterbore.
  • the positioning pin when the fastening member is set in the lower mold, although the positioning pin enters the counterbore from below, the positioning pin does not enter the female screw, so the inside of the female screw is configured. Interference of the peripheral wall with the positioning pin can be avoided. Therefore, it is possible to prevent the inner peripheral wall constituting the female screw portion from being damaged by the positioning pin while positioning the fastening member by the positioning pin.
  • the insert molded article disclosed by the present specification may have the following configuration.
  • the fastening member includes a nut provided with the female screw portion and a bus bar on which the lower end portion of the nut is placed, and the counterbore includes a lower opening of the nut and the bus bar It is good also as composition which consists of a penetration hole which penetrated and was provided in the up-and-down direction. According to such a configuration, since the counterbore is provided by the nut and the bus bar, the positioning pin can simultaneously position the nut and the bus bar.
  • the nut may be a bag-like nut whose upper end opposite to the bus bar is closed, and the upper end of the nut may be exposed to the outside from the housing. According to such a configuration, by setting the bus bar and the nut in the lower die and applying the upper die to the upper end portion of the nut from above, the nut and the bus bar can be held between the upper die and the lower die. Therefore, it is possible to reliably prevent resin from infiltrating between the lower end portion of the nut and the upper surface of the bus bar.
  • the insert molded article disclosed by the present specification it is possible to prevent the inner peripheral wall constituting the female screw portion from being damaged by the positioning pin while positioning the fastening member by the positioning pin.
  • the insert molded article 10 of the present embodiment is configured to include a plurality of bus bars 20 and a resin housing 40 integrally molded with the bus bars 20.
  • the insert molded article 10 is formed by insert molding with a mold 50.
  • the mold 50 is composed of an upper mold 51 and a lower mold 52, and the housing 40 is formed by injecting molten resin into a molding cavity 53 formed between the upper mold 51 and the lower mold 52 in the mold closed state.
  • positioning pins 54 are provided on the bottom surface of the lower mold 52 so as to project upward toward the upper mold 51.
  • the positioning pin 54 has a cylindrical shape.
  • the bus bar 20 is made of a conductive metal material, has a plate-like shape as a whole, and is provided with a horizontal portion 21 set along the bottom surface of the lower mold 52.
  • a through hole 23 through which the positioning pin 54 of the lower die 52 is inserted from below is provided in a substantially central portion of the horizontal portion 21 so as to penetrate in the thickness direction (vertical direction).
  • the inner diameter of the through hole 23 is approximately the same as or slightly larger than the diameter of the positioning pin 54.
  • a positioning recess 55 recessed downward according to the outer shape of the horizontal portion 21 of the bus bar 20 is provided on the bottom surface of the lower mold 52.
  • the horizontal portion 21 of the bus bar 20 is positioned by being fitted into the positioning recess 55 while inserting the positioning pin 54 into the through hole 23.
  • the nut 30 is made of a conductive metal material, and has a bag-like shape as a whole, and has a cylindrical portion 31 opening downward, and a cylindrical portion 31 located on the opposite side of the lower opening 33 in the cylindrical portion 31 And an upper end portion 32 closing the upper end opening of the portion 31.
  • An internal thread portion 34 is formed above the lower opening 33 in the internal space of the cylindrical portion 31.
  • the diameter of the lower opening 33 is approximately the same as or slightly larger than the diameter of the positioning pin 54. Further, the inner diameter of the female screw portion 34 is smaller than the diameter of the positioning pin 54.
  • the lower opening 33 and the female screw 34 both have a circular hole shape and extend in the vertical direction, and the female screw 34 is continuously provided above the lower opening 33.
  • the upper and lower dimensions of the female screw portion 34 are larger than the upper and lower dimensions of the lower opening 33.
  • the female screw 34 is disposed coaxially with the lower opening 33, and the inner diameter of the female screw 34 is smaller than the inner diameter of the lower opening 33. While an internal thread is formed on the inner peripheral wall constituting the internal thread portion 34, an internal thread is not formed on the inner peripheral wall constituting the lower opening 33.
  • the inner peripheral wall forming the lower opening 33 and the inner peripheral wall forming the female screw portion 34 are connected by a conical taper portion 35, and the upper end of the positioning pin 54 is located at the lower end of the taper portion 35 There is.
  • the bus bar 20 is mounted on the bottom surface of the lower mold 52 as shown in FIG. Position 21 at a predetermined position. Specifically, the positioning pin 54 is fitted in the through hole 23 and the horizontal portion 21 is fitted in the positioning recess 55, whereby the horizontal positioning of the bus bar 20 is performed. Next, the lower end portion of the nut 30 is placed on the upper surface of the bus bar 20. In this state, the positioning pin 54 is engaged with the lower opening 33 to position the nut 30 in the horizontal direction.
  • the positioning pin 54 is inserted into a counterbore formed by the through hole 23 of the bus bar 20 and the lower opening 33 of the nut 30, but is positioned below the female screw 34. That is, since the vertical dimension of positioning pin 54 is equal to or smaller than the vertical dimension of the counterbore (the space formed by through hole 23 and lower opening 33), the thread of female screw portion 34 is damaged by positioning pin 54. There is nothing to do. At this time, the through hole portion 23 and the lower opening portion 33 are coaxially arranged, and the inner peripheral wall forming the through hole portion 23 and the inner peripheral wall forming the lower opening portion 33 are flush with each other in the vertical direction Will be placed.
  • the ceiling surface of the upper mold 51 abuts on the upper end 32 of the nut 30 from above, and the bus bar 20 and the nut 30 are vertically moved by the upper mold 51 and the lower mold 52 It is in the state of being pinched from.
  • a molding cavity 53 is formed between the ceiling surface of the upper mold 51 and the bottom surface of the lower mold 52.
  • the molten resin is injected into the molding cavity 53, and the molten resin cools and hardens to form the housing 40.
  • the upper mold 51 and the lower mold 52 are opened and the insert molded product 10 is taken out.
  • the housing 40 is integrally formed on the bus bar 20 and the outer surface of the nut 30, and is disposed so as to cover the boundary between the bus bar 20 and the nut 30. For this reason, there is a concern that the molten resin may infiltrate from the boundary between the bus bar 20 and the nut 30 during insert molding. However, since the upper surface of the bus bar 20 and the lower end portion of the nut 30 are in firm contact with each other by the upper mold 51 and the lower mold 52, the molten resin does not enter into the boundary portion between the bus bar 20 and the nut 30. It can be performed.
  • the positioning pin 54 is in the counterbore (the through hole 23 and the lower opening 33) from below. Since the positioning pin 54 does not enter the internal thread portion 34 although it enters the state, interference of the inner peripheral wall constituting the internal thread portion 34 with the positioning pin 54 can be avoided. Therefore, while positioning of the fastening member is performed by the positioning pin 54, the inner circumferential wall constituting the female screw portion 34 can be prevented from being damaged by the positioning pin 54.
  • the fastening member includes a nut 30 provided with a female screw 34 and a bus bar 20 on which the lower end of the nut 30 is placed.
  • the counterbore includes a lower opening 33 of the nut 30, a bus bar 20 may be configured to include a through hole 23 vertically penetrated. According to such a configuration, since the counterbore portion is provided by the nut 30 and the bus bar 20, the positioning pin 54 can simultaneously position the nut 30 and the bus bar 20.
  • the nut 30 may be a bag-like nut in which the upper end 32 opposite to the bus bar 20 is closed, and the upper end 32 of the nut 30 may be exposed from the housing 40 to the outside. According to such a configuration, by setting the bus bar 20 and the nut 30 in the lower mold 52 and applying the upper mold 51 to the upper end portion 32 of the nut 30 from above, the nut 30 and the bus bar 20 can be made into the upper mold 51 and the lower mold. It can be held between 52. Therefore, it is possible to reliably prevent resin from entering between the lower end portion of nut 30 and the upper surface of bus bar 20.
  • the fastening member is constituted by the bus bar 20 and the nut 30 in the above embodiment, it may be a fastening member provided with only the nut 30. Also, the nut 30 need not be a bag-like nut, but may be a nut having a penetrating shape.
  • the bus bar 20 may be positioned only by the positioning recess 55.
  • the diameter of the through hole of the bus bar 20 may be set larger than the diameter of the lower opening 33 of the nut 30.
  • the upper end 32 of the nut 30 is exposed to the outside from the housing 40 in the above embodiment, the upper end of the nut may be embedded in the housing 40.

Landscapes

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

Abstract

Un article moulé par insertion 10 décrit dans la présente invention est moulé au moyen d'un moule 50 qui comprend une broche de positionnement 54 faisant saillie à partir d'un moule inférieur 52 vers un moule supérieur 51. L'article moulé par insertion 10 est pourvu : d'un élément de fixation métallique (un écrou 30 et une barre omnibus 20) qui comprend une partie de lamage (une partie d'ouverture inférieure 33 et une partie de trou de pénétration 23) avec une ouverture inférieure pour insérer la broche de positionnement 54 ; et un logement de résine 40 moulé intégralement sur une surface externe de l'élément de fixation. L'élément de fixation comporte une partie de vis femelle 34 s'étendant vers le haut à partir d'une extrémité supérieure de la partie de lamage. Une dimension verticale de la broche de positionnement 54 est inférieure ou égale à une dimension verticale de la partie de lamage.
PCT/JP2018/030485 2017-08-22 2018-08-17 Article moulé par insertion WO2019039395A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880053686.7A CN110997271B (zh) 2017-08-22 2018-08-17 嵌件成型品
JP2019537599A JP6819914B2 (ja) 2017-08-22 2018-08-17 インサート成形品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017159126 2017-08-22
JP2017-159126 2017-08-22

Publications (1)

Publication Number Publication Date
WO2019039395A1 true WO2019039395A1 (fr) 2019-02-28

Family

ID=65438723

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/030485 WO2019039395A1 (fr) 2017-08-22 2018-08-17 Article moulé par insertion

Country Status (3)

Country Link
JP (1) JP6819914B2 (fr)
CN (1) CN110997271B (fr)
WO (1) WO2019039395A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11204955A (ja) * 1998-01-09 1999-07-30 Yazaki Corp 電気接続箱へのワイヤーハーネスの固定構造
JP2000156922A (ja) * 1998-11-17 2000-06-06 Yazaki Corp 箱体におけるバスバーの配索構造
WO2008099614A1 (fr) * 2007-02-16 2008-08-21 Panasonic Corporation Unité de condensateur et son procédé de fabrication

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0681999B2 (ja) * 1991-06-13 1994-10-19 株式会社栗本鐵工所 プラスチック管用ユニオンソケットの製造方法
JP2766577B2 (ja) * 1992-02-07 1998-06-18 シャープ株式会社 成形用金型
JP2005177898A (ja) * 2003-12-17 2005-07-07 Ngk Spark Plug Co Ltd 切削工具本体および切削工具
JP4189752B2 (ja) * 2004-03-31 2008-12-03 住友電装株式会社 インサート成形品の製造方法
CN101112784A (zh) * 2007-07-12 2008-01-30 惠州市格林塑胶电子有限公司 带螺母嵌件的塑料件及其加工方法
CN102015473B (zh) * 2008-02-27 2013-05-22 Apc产品有限公司 用于适于自动嵌件模制的塑料容器的封闭件
JP5433366B2 (ja) * 2009-10-05 2014-03-05 三菱航空機株式会社 耐雷ファスナ、航空機組立品、および耐雷ファスナの締結方法
JP5657466B2 (ja) * 2011-04-28 2015-01-21 愛三工業株式会社 インサート成形品の製造方法及びインサートナット
JP2013035208A (ja) * 2011-08-08 2013-02-21 Yazaki Corp 金型及びインサート樹脂成形方法
DE102012019849B4 (de) * 2012-10-10 2023-11-02 Böllhoff Verbindungstechnik GmbH Bauteil mit Dichtstopfen sowie Verfahren zum Einformen eines Bauteileinsatzes
CN205929245U (zh) * 2016-07-29 2017-02-08 维沃移动通信有限公司 一种注塑嵌件及注塑模具

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11204955A (ja) * 1998-01-09 1999-07-30 Yazaki Corp 電気接続箱へのワイヤーハーネスの固定構造
JP2000156922A (ja) * 1998-11-17 2000-06-06 Yazaki Corp 箱体におけるバスバーの配索構造
WO2008099614A1 (fr) * 2007-02-16 2008-08-21 Panasonic Corporation Unité de condensateur et son procédé de fabrication

Also Published As

Publication number Publication date
CN110997271B (zh) 2021-11-23
JP6819914B2 (ja) 2021-01-27
JPWO2019039395A1 (ja) 2020-02-27
CN110997271A (zh) 2020-04-10

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