JPS58168540A - Extrusion molding metal mold - Google Patents

Extrusion molding metal mold

Info

Publication number
JPS58168540A
JPS58168540A JP57054303A JP5430382A JPS58168540A JP S58168540 A JPS58168540 A JP S58168540A JP 57054303 A JP57054303 A JP 57054303A JP 5430382 A JP5430382 A JP 5430382A JP S58168540 A JPS58168540 A JP S58168540A
Authority
JP
Japan
Prior art keywords
extrusion
mold
tapered
parting
force
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.)
Pending
Application number
JP57054303A
Other languages
Japanese (ja)
Inventor
Hideomi Yamamoto
英臣 山本
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP57054303A priority Critical patent/JPS58168540A/en
Publication of JPS58168540A publication Critical patent/JPS58168540A/en
Pending 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To reduce the generation of mold flash and consequently obtain molded pieces with favorable external appearance by a structure wherein a tapered part is formed at the extrusion end of the parting part of an extrusion molding metal mold with the parting part, the direction of which is the same as that of extrusion. CONSTITUTION:An extrusion space having a nearly same form as that of a molded piece is formed in the extrusion molding metal mold 1 vertically separable into a top force 2 and a bottom force 3. In addition, the tapered part 5 is formed at the extrusion end of the parting part 4, at which the top force 2 and the bottom force 3 abut against each other. Concretely, for example, the tapered part 5 can be formed downwardly inclined with respect to the direction of the parting part or the mold corresponding to the tapered part 5 can be separated from the parting part 4 as a separate body 11 and a tapered top force 21 can be fixed to the top force 2 by clamping with fittings such as bolts or the like and a tapered bottom force 31 can be similarly fixed to the bottom force 3 so as to form the tapered part 5.

Description

【発明の詳細な説明】 本発明は押出成形金型に関するものである。[Detailed description of the invention] The present invention relates to an extrusion mold.

従来、第１図の如く、押出成形金型入を上下方向に分割
した場合、上型Ｂと下型Ｃとの間のパーティング部Ｐに
おいて、第２図の如く、合成樹脂の成型品りのパーディ
ング部Ｐに当る部分にパリＥが出易いものであった。押
出成形金型Ａでは、押出し方向に対して上下、あるいは
左右と分割した場合には、必らずパーディング部Ｐが形
成されるため、初めは正確に密着していても、経年変化
によって、パーティング部Ｐにわずかのすき間が生じる
ことになり、そのすき間に押出樹脂等が入（１） す、パリとなって成型品りに表われることになっていた
。Conventionally, when an extrusion mold insert is divided vertically as shown in Fig. 1, a synthetic resin molded product is separated in a parting part P between an upper mold B and a lower mold C as shown in Fig. 2. Paris E was likely to appear in the part corresponding to the padding part P. In the extrusion mold A, when the extrusion mold A is divided vertically or horizontally in the extrusion direction, a padding part P is always formed. A slight gap would be created in the parting part P, and the extruded resin etc. would enter the gap (1), causing cracks to appear on the molded product.

本発明は、上記のような点に鑑みて為されたものであり
、以下本発明の実施例として示す図面に基いて説明する
。The present invention has been made in view of the above points, and will be explained below based on the drawings shown as embodiments of the present invention.

第８図は本発明の一実施例の斜視図であり、図において
、ｌは押出成形金型、２は上型、ａＶｉ下型、４はパー
ティング部、５はデーバ一部、６ｉｊ押出空間、７ｔ′
１押出挿入口である。押出成形金型ｌは上型２と下型８
とに上下に分割されて形成されており、成型品とほぼ同
一形状の押出空間６が形成されている。そして上型２と
下型８はパーティング部４によって当接しているもので
あり、パーティング部４の押出先端にはテーパ一部６が
形成されている。第４図はパーティング部４の部分断面
図であり、上下方向に移動させて、上型２と下型８を離
した状態であり、パーティング部４の方向に対して下方
へ傾斜せるテーパ一部６が形成されている。第６図は本
発明の他の実施例であり、デーバ一部６の部分の金型を
別体１１にして、上型２にデーバー上型２１を、下型８
にデーバー下型８１をボルト等の固定具８によって締付
固定せしめてｔ−バ一部５を形成してもよい。との場合
、金型加工が容易となり、コストを下げることができ、
しかも取替等ができ、補修が簡単にできるものとなる。FIG. 8 is a perspective view of one embodiment of the present invention, and in the figure, l is an extrusion mold, 2 is an upper mold, aVi lower mold, 4 is a parting part, 5 is a part of the developer, and 6ij is an extrusion space. , 7t'
1 extrusion insertion port. Extrusion mold l has upper mold 2 and lower mold 8
It is formed by being divided into upper and lower parts, and an extrusion space 6 having substantially the same shape as the molded product is formed. The upper die 2 and the lower die 8 are in contact with each other through a parting portion 4, and a tapered portion 6 is formed at the extrusion tip of the parting portion 4. FIG. 4 is a partial sectional view of the parting part 4, showing a state in which the upper mold 2 and the lower mold 8 are separated by moving in the vertical direction, and the taper slopes downward with respect to the direction of the parting part 4. Part 6 is formed. FIG. 6 shows another embodiment of the present invention, in which the mold for the Dever part 6 is made into a separate body 11, the Dever upper mold 21 is placed in the upper mold 2, and the Dever upper mold 21 is placed in the lower mold 8.
The T-bar portion 5 may also be formed by tightening and fixing the Dever lower mold 81 with a fixture 8 such as a bolt. In this case, mold processing becomes easier and costs can be lowered.
Moreover, it can be replaced and repaired easily.

又、バーディング部４は押出し方向に対して上下でなく
ても、左右方向に分割するものであってもかまわない。Further, the barding section 4 does not have to be vertically disposed in the extrusion direction, but may be divided horizontally.

ここで、押出機の先端から押出挿入ロア１’ｌ：合成樹
脂を押出して、成型品を押出空間より押出成形した場合
に、たとえ、パーティング部４の水平部ｄにパリが発生
しても、その先端のデーバ一部６によって、そぎとられ
るように、ノ（りが成型品より削り取られて、成型品に
はパリがなくなるものである。Here, extrusion insertion lower 1'l from the tip of the extruder: When a synthetic resin is extruded and a molded product is extruded from the extrusion space, even if paris occurs in the horizontal part d of the parting part 4. The groove is scraped off from the molded product by the deva portion 6 at the tip thereof, so that the molded product is free of cracks.

本発明は上記のように、パーティング部の押出先端側に
傾斜せるキーパ一部を形成したために、パリが発生しに
〈＜、成型品が外観上良くない、パリ取り等の加工が必
要でなくなるものである。As described above, the present invention forms a part of the keeper that is inclined toward the extrusion tip side of the parting part, so that burrs are not generated. It is something that will disappear.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の押出金型の一例の斜視図、第２図は第１
図の金型によって成形された成型品の斜視図、第８図、
第６図はそれぞれ本発明の実施例の斜視図、第４図は本
発明のパーティング部の部分断面図である。 １は押出成形金型、２は上型、８は下型、４ｉｊバーチ
インクｆｆｉ、　５はデーバ一部である。 特許出願人 松下電工株式会社 代理人弁垣、士　　竹　元　敏　丸 （ほか２名）Figure 1 is a perspective view of an example of a conventional extrusion die, and Figure 2 is a perspective view of an example of a conventional extrusion die.
FIG. 8 is a perspective view of a molded product formed by the mold shown in the figure.
FIG. 6 is a perspective view of an embodiment of the present invention, and FIG. 4 is a partial sectional view of a parting portion of the present invention. 1 is an extrusion mold, 2 is an upper mold, 8 is a lower mold, 4ij birch ink ffi, and 5 is a part of the developer. Patent applicant Matsushita Electric Works Co., Ltd. Agent Bengaki, Toshimaru Takemoto (and 2 others)

Claims (1)

【特許請求の範囲】[Claims] １）押出方向と同方向のパーティング部を有する押出成
形金型において７に＊パーディング部の押出先端にデー
バ一部を形成してなることを特徴とする押出成形金型。1) An extrusion mold having a parting part in the same direction as the extrusion direction, characterized in that a part of the deva is formed at the extrusion tip of the parting part.
JP57054303A 1982-03-31 1982-03-31 Extrusion molding metal mold Pending JPS58168540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57054303A JPS58168540A (en) 1982-03-31 1982-03-31 Extrusion molding metal mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57054303A JPS58168540A (en) 1982-03-31 1982-03-31 Extrusion molding metal mold

Publications (1)

Publication Number Publication Date
JPS58168540A true JPS58168540A (en) 1983-10-04

Family

ID=12966799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57054303A Pending JPS58168540A (en) 1982-03-31 1982-03-31 Extrusion molding metal mold

Country Status (1)

Country Link
JP (1) JPS58168540A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04209714A (en) * 1990-12-04 1992-07-31 Akiko:Kk Spherical lump dry ice producing machine
JP2011025408A (en) * 2009-07-21 2011-02-10 Sumitomo Rubber Ind Ltd Die plate for rubber extruder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04209714A (en) * 1990-12-04 1992-07-31 Akiko:Kk Spherical lump dry ice producing machine
JP2011025408A (en) * 2009-07-21 2011-02-10 Sumitomo Rubber Ind Ltd Die plate for rubber extruder

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