JPH0655585A - Gate cut mechanism in submarine gate - Google Patents

Gate cut mechanism in submarine gate

Info

Publication number
JPH0655585A
JPH0655585A JP12247092A JP12247092A JPH0655585A JP H0655585 A JPH0655585 A JP H0655585A JP 12247092 A JP12247092 A JP 12247092A JP 12247092 A JP12247092 A JP 12247092A JP H0655585 A JPH0655585 A JP H0655585A
Authority
JP
Japan
Prior art keywords
gate
submarine
cut mechanism
ejector
rack
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP12247092A
Other languages
Japanese (ja)
Inventor
Kodama Otaka
鼓玉 尾高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP12247092A priority Critical patent/JPH0655585A/en
Publication of JPH0655585A publication Critical patent/JPH0655585A/en
Withdrawn legal-status Critical Current

Links

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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • 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
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • 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
    • B29C45/38—Cutting-off equipment for sprues or ingates
    • 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

Landscapes

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

Abstract

PURPOSE:To prevent the cutting operation of a second gate after molding. CONSTITUTION:A gate cut mechanism is composed of a hydraulic cylinder 10 for front-rear moving a rack 12, a bracket 9 for installing the cylinder 10 to an ejector (a lower section), the rack 12 for converting a front-rear motion from the hydraulic cylinder into a rotary motion 10 and an ejector pin 11 with a pinion groove.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はサブマリンゲートにおけ
るゲートカット機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gate cut mechanism in a submarine gate.

【０００２】[0002]

【従来の技術】図３（ａ），（ｂ）は従来の示ず断面図
である。図３（ａ）はゲートカット前を、図３（ｂ）は
ゲートカット後を示す。従来の機構では、ゲート部のエ
ジェクターピン１とランナー部のエジェクターピン２を
突出することによりファーストゲート３とセカンドゲー
ト４の接合部５にせん断力を負荷することにより、ファ
ーストゲート３とセカンドゲート４のカットが行なわれ
ていた。2. Description of the Related Art FIGS. 3A and 3B are sectional views not shown in the related art. 3A shows the state before the gate cutting, and FIG. 3B shows the state after the gate cutting. In the conventional mechanism, the ejector pin 1 of the gate portion and the ejector pin 2 of the runner portion are projected to apply a shearing force to the joint portion 5 between the first gate 3 and the second gate 4, thereby causing the first gate 3 and the second gate 4 to be connected. Was being cut.

【０００３】[0003]

【発明が解決しようとする課題】上述した従来のゲート
カット機構では、セカンドゲート部４と成形品６のカッ
トが行なわれず、成形後に成形品６からセカンドゲート
部４をカットする作業が必要であるという欠点があっ
た。In the above-described conventional gate cutting mechanism, the second gate portion 4 and the molded product 6 are not cut, and the work of cutting the second gate portion 4 from the molded product 6 is required after molding. There was a drawback.

【０００４】[0004]

【課題を解決するための手段】本発明のサブマリンゲー
トにおけるゲートカット機構は、ゲート部のエジェクタ
ーを回転させることにより成形品とセカンドゲートの接
合部及びセカンドゲートとファーストゲートの接合部に
せん断力を負荷することによりゲートカットを行う。A gate cutting mechanism in a submarine gate according to the present invention applies a shearing force to a joint between a molded article and a second gate and a joint between a second gate and a first gate by rotating an ejector of the gate. The gate is cut by applying a load.

【０００５】[0005]

【実施例】次に本発明について図面を参照して説明す
る。The present invention will be described below with reference to the drawings.

【０００６】図１は本発明の一実施例を示す断面図、図
２は図１の断面Ａ−Ａ部を示す図である。エジェクター
プレート（下）８にブラケット９を介して油圧シリンダ
ー１０を取付け、油圧シリンダー１０を前後させること
によりラックピニオン機構にて、ピニオン溝付エジェタ
ーピン１１を回転させる。この回転運動によって成形品
６とセカンドゲート４の接合部７及びセカンドゲート４
とファーストゲート３の接合部５にせん断力を負荷する
ことにより、ゲートカットを行う。FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG. The hydraulic cylinder 10 is attached to the ejector plate (lower) 8 via the bracket 9, and the hydraulic pin 10 is moved back and forth to rotate the ejector pin 11 with the pinion groove by the rack and pinion mechanism. Due to this rotational movement, the joint 7 between the molded product 6 and the second gate 4 and the second gate 4
The gate is cut by applying a shearing force to the joint portion 5 of the first gate 3.

【０００７】[0007]

【発明の効果】本発明は、成形後にセカンドゲート４を
カットする作業が不必要となる効果を有する。The present invention has the effect that the work of cutting the second gate 4 after molding is unnecessary.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【図２】図１のＡ−Ａ断面を示す図である。FIG. 2 is a view showing a cross section taken along the line AA of FIG.

【図３】（ａ），（ｂ）は従来の一例を示す断面図であ
る。3A and 3B are cross-sectional views showing an example of the related art.

【符号の説明】[Explanation of symbols]

１ ゲート部のエジェクターピン ２ ランナー部のエジェクターピン ３ ファーストゲート ４ セカンドゲート ５ ファーストゲートとセカンドゲート接合部 ６ 成形品 ７ セカンドゲートと成形品接合部 ８ エジェクタープレート（下） ９ ブラケット １０ 油圧シリンダー １１ ピニオン溝付エジェクター １２ ラック 1 Ejector pin of gate part 2 Ejector pin of runner part 3 First gate 4 Second gate 5 First gate and second gate joint 6 Molded product 7 Second gate and molded product joint 8 Ejector plate (bottom) 9 Bracket 10 Hydraulic cylinder 11 Pinion Grooved Ejector 12 Rack

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 ゲート部のエジェクターピンを回転させ
ることにより成形時に成形品からセカンドゲートをカッ
トすることを特徴とするサブマリンゲートにおけるゲー
トカット機構。1. A gate cutting mechanism for a submarine gate, characterized in that a second gate is cut from a molded product during molding by rotating an ejector pin of the gate portion.
JP12247092A 1992-05-15 1992-05-15 Gate cut mechanism in submarine gate Withdrawn JPH0655585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12247092A JPH0655585A (en) 1992-05-15 1992-05-15 Gate cut mechanism in submarine gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12247092A JPH0655585A (en) 1992-05-15 1992-05-15 Gate cut mechanism in submarine gate

Publications (1)

Publication Number Publication Date
JPH0655585A true JPH0655585A (en) 1994-03-01

Family

ID=14836646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12247092A Withdrawn JPH0655585A (en) 1992-05-15 1992-05-15 Gate cut mechanism in submarine gate

Country Status (1)

Country Link
JP (1) JPH0655585A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0890612A (en) * 1994-09-28 1996-04-09 Nec Corp Submarine gate-type mold for molding resin and resin molding method
WO2011050885A1 (en) * 2009-10-30 2011-05-05 Sony Ericsson Mobile Communications Ab Injection molding method for molding a molding part
CN103692623A (en) * 2013-12-19 2014-04-02 重庆前卫宏华科技有限责任公司 Full-automatic rotary water gap cutting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0890612A (en) * 1994-09-28 1996-04-09 Nec Corp Submarine gate-type mold for molding resin and resin molding method
WO2011050885A1 (en) * 2009-10-30 2011-05-05 Sony Ericsson Mobile Communications Ab Injection molding method for molding a molding part
CN103692623A (en) * 2013-12-19 2014-04-02 重庆前卫宏华科技有限责任公司 Full-automatic rotary water gap cutting machine

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 19990803