JP2010141062A5 - - Google Patents
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- Publication number
- JP2010141062A5 JP2010141062A5 JP2008315118A JP2008315118A JP2010141062A5 JP 2010141062 A5 JP2010141062 A5 JP 2010141062A5 JP 2008315118 A JP2008315118 A JP 2008315118A JP 2008315118 A JP2008315118 A JP 2008315118A JP 2010141062 A5 JP2010141062 A5 JP 2010141062A5
- Authority
- JP
- Japan
- Prior art keywords
- magnet piece
- cavity
- molding die
- mold
- magnet
- 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.)
- Granted
Links
- 238000000465 moulding Methods 0.000 claims 5
- 239000000463 material Substances 0.000 claims 2
- 230000002093 peripheral Effects 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000000875 corresponding Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
Claims (5)
前記イジェクタは、前記マグネットピースの両端部に位置し、
前記イジェクタの先端部が、前記固定型と前記可動型とが組み合わされて形成されたキャビティに突出したことを特徴とするマグネットピース成形用金型。 Magnet piece molding die for forming a fan-shaped magnet piece having a fixed die having an orientation yoke and a movable die having an ejector, which is bonded to the peripheral surface of the shaft and forms a magnet roll. Because
The ejectors are located at both ends of the magnet piece ,
A magnet piece molding die, wherein a tip portion of the ejector projects into a cavity formed by combining the fixed mold and the movable mold .
前記シャフトの周面に対応する円弧面と、
該円弧面の両側から前記キャビティに突出した突出部と、
を備えた請求項１に記載のマグネットピース成形用金型。 The tip of the ejector is
An arc surface corresponding to the peripheral surface of the shaft;
Protrusions protruding into the cavity from both sides of the arc surface ;
Magnet pieces mold according to claim 1 comprising a.
前記イジェクタの先端部は、前記入れ子から前記キャビティに突出した請求項１から請求項３のいずれか１つに記載のマグネットピース成形用金型。 The movable type includes a nesting,
Tip of the front Symbol ejectors magnet pieces forming mold according to any one of claims 1 to 3 which projects into the cavity from the nest.
前記マグネットピース成形用金型を冷却し、前記キャビティ中の前記磁性樹脂材料を固化する工程と、Cooling the magnet piece molding die and solidifying the magnetic resin material in the cavity;
前記可動型を移動させて型開きした後、前記イジェクタを突出させて前記マグネットピースを離型させる工程と、A step of moving the movable mold and opening the mold, and then projecting the ejector to release the magnet piece;
を備えるマグネットピースの製造方法。The manufacturing method of a magnet piece provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008315118A JP5126040B2 (en) | 2008-12-11 | 2008-12-11 | Magnet piece molding die and method of manufacturing magnet piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008315118A JP5126040B2 (en) | 2008-12-11 | 2008-12-11 | Magnet piece molding die and method of manufacturing magnet piece |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010141062A JP2010141062A (en) | 2010-06-24 |
| JP2010141062A5 true JP2010141062A5 (en) | 2011-09-15 |
| JP5126040B2 JP5126040B2 (en) | 2013-01-23 |
Family
ID=42350952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008315118A Expired - Fee Related JP5126040B2 (en) | 2008-12-11 | 2008-12-11 | Magnet piece molding die and method of manufacturing magnet piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5126040B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5825795B2 (en) * | 2011-02-03 | 2015-12-02 | キヤノン株式会社 | Developing device and magnet roller |
| JP5936753B2 (en) * | 2015-06-01 | 2016-06-22 | キヤノン株式会社 | Developing device and magnet roller |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715126B2 (en) * | 1987-05-18 | 1995-02-22 | 本田技研工業株式会社 | Compaction molding method for sintered molded products |
| JP3869024B2 (en) * | 1994-09-13 | 2007-01-17 | 株式会社カネカ | Manufacturing method and manufacturing apparatus for injection molded magnet roll |
| JPH08142108A (en) * | 1994-11-24 | 1996-06-04 | Hitachi Metals Ltd | Manufacture of permanent magnet member for magnet roll |
| JPH09125103A (en) * | 1995-11-07 | 1997-05-13 | Honda Motor Co Ltd | Method and device for compacting tiranium alloy |
| JP3441593B2 (en) * | 1996-03-28 | 2003-09-02 | 株式会社リコー | Developing device |
| JPH1067030A (en) * | 1996-06-17 | 1998-03-10 | Kanegafuchi Chem Ind Co Ltd | Apparatus and method for molding magnet roll |
| JP3308187B2 (en) * | 1997-03-27 | 2002-07-29 | 株式会社ブリヂストン | Manufacturing method of magnet roller |
| JPH1177783A (en) * | 1997-09-08 | 1999-03-23 | Kanegafuchi Chem Ind Co Ltd | Apparatus and method for molding magnet roll |
| JPH11224814A (en) * | 1998-02-04 | 1999-08-17 | Bridgestone Corp | Mold for forming magnet roller and manufacture of magnet roller using the mold |
| JPH11224815A (en) * | 1998-02-04 | 1999-08-17 | Bridgestone Corp | Mold for forming magnet roller and manufacture of the magnet roller using the mold |
| JP3485485B2 (en) * | 1998-12-28 | 2004-01-13 | 住友特殊金属株式会社 | Powder pressing device, punch and powder pressing method |
| JP2002365915A (en) * | 2001-06-05 | 2002-12-20 | Ricoh Co Ltd | Development roller, production thereof, development machine, and imaging device |
| JP3989284B2 (en) * | 2002-04-22 | 2007-10-10 | 株式会社リコー | Magnet block, developing roller, developing device and image forming apparatus |
| JP3936231B2 (en) * | 2002-04-22 | 2007-06-27 | 鈴鹿富士ゼロックス株式会社 | Injection mold |
| JP2007105992A (en) * | 2005-10-13 | 2007-04-26 | Bridgestone Corp | Manufacturing method of magnet roller |
| JP4920984B2 (en) * | 2006-02-03 | 2012-04-18 | 株式会社リコー | Magnet roller, developer carrier, developing device, process cartridge, image forming apparatus |
| JP4949883B2 (en) * | 2007-02-14 | 2012-06-13 | 株式会社リコー | Developer carrying member, developing device, process cartridge, and image forming apparatus |
-
2008
- 2008-12-11 JP JP2008315118A patent/JP5126040B2/en not_active Expired - Fee Related
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