JPS5854620A - Injection molding machine for plastic magnet - Google Patents

Injection molding machine for plastic magnet

Info

Publication number
JPS5854620A
JPS5854620A JP15326181A JP15326181A JPS5854620A JP S5854620 A JPS5854620 A JP S5854620A JP 15326181 A JP15326181 A JP 15326181A JP 15326181 A JP15326181 A JP 15326181A JP S5854620 A JPS5854620 A JP S5854620A
Authority
JP
Japan
Prior art keywords
molding machine
injection molding
magnetic circuit
plastic magnet
electromagnet
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
JP15326181A
Other languages
Japanese (ja)
Inventor
Ryoji Maruyama
良次 丸山
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.)
I Pex Inc
Original Assignee
Dai Ichi Seiko Co 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 Dai Ichi Seiko Co Ltd filed Critical Dai Ichi Seiko Co Ltd
Priority to JP15326181A priority Critical patent/JPS5854620A/en
Publication of JPS5854620A publication Critical patent/JPS5854620A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets

Abstract

PURPOSE:To enable to manufacture the compact type injection molding machine by a method wherein a part of injection molding machine, say a tiebar is utilized as a part of magnetic circuit. CONSTITUTION:The tieber made of magnetic material may be utilized as a part of magnetic circuit. When an electromagnet is excited, a magnetic circuit is formed to make intermediate pole shoe needless enabling to manufacture the compact type injection molding machine.

Description

【発明の詳細な説明】 本発明は、プラスチックマグネット用射出成形機に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an injection molding machine for plastic magnets.

従来のプラスチックマグネット用射出成形機としては、
例えば第１図及び第２図に示したものが知られている。As a conventional injection molding machine for plastic magnets,
For example, those shown in FIGS. 1 and 2 are known.

第１図において１は射出成形機、２は電磁石、３は磁気
回路を構成するための中間磁極板、４は非磁性材料から
成るタイツ々−である。In FIG. 1, 1 is an injection molding machine, 2 is an electromagnet, 3 is an intermediate magnetic pole plate for constructing a magnetic circuit, and 4 is a pair of tights made of non-magnetic material.

第２図においても同様に１′は射出成形機、−１は電磁
石、３′は磁気回路を構成するための中間磁極板、４′
は非磁性材料から成るタイツ々−である。以上のように
構成されている射出成形機は何れの場合も中間磁極板を
必要とするので、射出成形機の太きさが大きくなってし
まうという欠点があった。Similarly, in Fig. 2, 1' is an injection molding machine, -1 is an electromagnet, 3' is an intermediate magnetic pole plate for configuring a magnetic circuit, and 4'
are tights made of non-magnetic material. In any case, the injection molding machine configured as described above requires an intermediate magnetic pole plate, which has the drawback of increasing the thickness of the injection molding machine.

従って、本発明は中間磁極板を必要とせずに小型に構成
し得る射出成形機を提共せんとするものであって、以下
第３図に示した一実施例によシこれを説明すれば、１１
は射出成形機、１２は電磁石、１３は磁性材料から成る
タイツ々−である。Therefore, the present invention aims to provide an injection molding machine that can be constructed in a small size without requiring an intermediate magnetic pole plate.This will be explained below using an embodiment shown in FIG. , 11
1 is an injection molding machine, 12 is an electromagnet, and 13 is a pair of tights made of magnetic material.

以上のように構成された本発明による実施例は、電磁石
１２が励磁されると第３図に矢印で示した如く磁気回路
が形成される。従って中間磁極板が不要となり、それだ
け射出成形機が小型に構成され得る。In the embodiment of the present invention constructed as described above, when the electromagnet 12 is excited, a magnetic circuit is formed as shown by the arrow in FIG. Therefore, the intermediate magnetic pole plate is not required, and the injection molding machine can be made smaller accordingly.

以上述べたように本発明によれば、タイツ々−を　　゛
磁性材料によシ作ることによって磁気回路の一部として
利用するようにしたから、射出成形機を小型に構成する
ことができ効果的である。As described above, according to the present invention, the tights are made of magnetic material and used as part of the magnetic circuit, so the injection molding machine can be made smaller and more effective. It is.

尚、本発明はタイツ々−を磁気回路の一部として利用す
る場合について述べたが、他の部材を利用することも可
能である。Although the present invention has been described with reference to the case where the tights are used as part of the magnetic circuit, it is also possible to use other members.

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

第１図及び第２図は従来のプラスチックマグネット用射
出成形機の概略断面図、第３図紘本発明によるプラスチ
ックマグネット用射出成形機の概略断面図である。 １．１’、１１・・・射出成形機、２．２’、１２・・
・電磁石、３．３’−・・中間磁極板、４．４’、１３
・・・タイ＋＃々−０ ＜１．’；’：ＪＡｔ 代理人弁理士　　　　篠　原　泰　司°１．・“・：！
ｉ−表ｒ゛ 第１図 第２図 １．−口′ 第３　図1 and 2 are schematic sectional views of a conventional injection molding machine for plastic magnets, and FIG. 3 is a schematic sectional view of an injection molding machine for plastic magnets according to the present invention. 1.1', 11...injection molding machine, 2.2', 12...
・Electromagnet, 3.3'--Intermediate magnetic pole plate, 4.4', 13
...Tie+#-0 <1. ';': JAt Representative Patent Attorney Yasushi Shinohara°1.・“・：!
i-Table r゛Figure 1Figure 2 1. -Mouth' Figure 3

Claims (1)

【特許請求の範囲】[Claims] 成形機の一部例えばタイツ々−を磁気回路の一部として
利用するようにしたことを特徴とする。プラスチックマ
グネット用射出成形機。It is characterized in that a part of the molding machine, such as tights, is used as part of the magnetic circuit. Injection molding machine for plastic magnets.
JP15326181A 1981-09-28 1981-09-28 Injection molding machine for plastic magnet Pending JPS5854620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15326181A JPS5854620A (en) 1981-09-28 1981-09-28 Injection molding machine for plastic magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15326181A JPS5854620A (en) 1981-09-28 1981-09-28 Injection molding machine for plastic magnet

Publications (1)

Publication Number Publication Date
JPS5854620A true JPS5854620A (en) 1983-03-31

Family

ID=15558582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15326181A Pending JPS5854620A (en) 1981-09-28 1981-09-28 Injection molding machine for plastic magnet

Country Status (1)

Country Link
JP (1) JPS5854620A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130410A (en) * 1983-01-17 1984-07-27 Japan Steel Works Ltd:The Mold clamping apparatus for plastic magnetic injection molding machine
JPS61190913A (en) * 1985-02-08 1986-08-25 Toshiba Mach Co Ltd Magnetic field injection-molding machine
JPS62138431U (en) * 1985-10-30 1987-09-01
JPS6430819U (en) * 1987-08-19 1989-02-27
JPH01207916A (en) * 1988-02-16 1989-08-21 Matsushita Electric Ind Co Ltd Manufacture of magnet roll

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121198A (en) * 1974-08-16 1976-02-20 Nippon Special Steel Co Ltd IHOSEIRINGUJOJUSHIJISHAKUNO SEIZOHOHO
JPS5584640A (en) * 1978-12-22 1980-06-26 Daido Steel Co Ltd Production of anisotropic resin magnet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121198A (en) * 1974-08-16 1976-02-20 Nippon Special Steel Co Ltd IHOSEIRINGUJOJUSHIJISHAKUNO SEIZOHOHO
JPS5584640A (en) * 1978-12-22 1980-06-26 Daido Steel Co Ltd Production of anisotropic resin magnet

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130410A (en) * 1983-01-17 1984-07-27 Japan Steel Works Ltd:The Mold clamping apparatus for plastic magnetic injection molding machine
JPH0423408B2 (en) * 1983-01-17 1992-04-22 Japan Steel Works Ltd
JPS61190913A (en) * 1985-02-08 1986-08-25 Toshiba Mach Co Ltd Magnetic field injection-molding machine
JPS62138431U (en) * 1985-10-30 1987-09-01
JPH0539619Y2 (en) * 1985-10-30 1993-10-07
JPS6430819U (en) * 1987-08-19 1989-02-27
JPH01207916A (en) * 1988-02-16 1989-08-21 Matsushita Electric Ind Co Ltd Manufacture of magnet roll
JP2563436B2 (en) * 1988-02-16 1996-12-11 松下電器産業株式会社 Magnet roll manufacturing method

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