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JP2005329458A - Plunger - Google Patents

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Publication number
JP2005329458A
JP2005329458A JP2004178980A JP2004178980A JP2005329458A JP 2005329458 A JP2005329458 A JP 2005329458A JP 2004178980 A JP2004178980 A JP 2004178980A JP 2004178980 A JP2004178980 A JP 2004178980A JP 2005329458 A JP2005329458 A JP 2005329458A
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Japan
Prior art keywords
plunger
cylindrical body
lubricant
tubular body
tip
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JP2004178980A
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Japanese (ja)
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JP4962827B2 (en
Inventor
Ikuo Oshita
育男 大下
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  • Punching Or Piercing (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plunger which is attached freely attachably and detachably to a die by using a general purpose tool ( spanner or the like ), always and easily workable and always kept in an operating state because a minute amount of lubricant enters the inside for each operation by a inserting part for inserting the liquefied lubricant. <P>SOLUTION: The plunger is provided with a tubular body on the outer periphery of which a female screw part is formed and a sliding body which is moved in and out of the inside of the tubular body by an elastic body, wherein a mounting part which is obtained by forming the head end part of the tubular body into a polyhedron is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、金型に螺設する場合に、一般の工具等を使用し、確実に着脱できるプランジャに関するものである。  The present invention relates to a plunger that can be reliably attached and detached using a general tool or the like when screwed into a mold.

従来の技術としては、外側面が金型に嵌着される筒体の内側面の一側部と他側部との間に設けられた弾性体により不勢される摺動体を備えたスプリングプランジャにおいて、前記筒体の内側面と前記摺動体との摺動面にブッシュを装着することを特徴とするスプリングプランジャがあり、前記ブッシュが自己潤滑性材料で形成してなるものである。（特許文献１参照）
特開平１１−２４４９５５号 公報 As a conventional technique, a spring plunger provided with a sliding body that is biased by an elastic body provided between one side portion and the other side portion of an inner side surface of a cylindrical body whose outer surface is fitted into a mold. There is a spring plunger characterized in that a bush is mounted on the sliding surface between the inner surface of the cylindrical body and the sliding body, and the bush is formed of a self-lubricating material. (See Patent Document 1)
Japanese Patent Laid-Open No. 11-244955

上記のスプリングプランジャにおいては、金型に取り付けるのに凹部（２ｉ）に専用の治具を掛けて回すものであり、凹部（２ｉ）に嵌合するツメが折れて取り外しできないことがあり、専用治具のため、緊急時において作業がストップすることがある。
また、自己潤滑性材料は樹脂材であり、固体であるため切断粉等が内部に入り込んだ場合、作動しなくなる場合がある。In the above-mentioned spring plunger, a special jig is hung on the recess (2i) to be attached to the mold, and the claw that fits into the recess (2i) may break and cannot be removed. Due to the equipment, work may stop in an emergency.
Further, since the self-lubricating material is a resin material and is a solid, it may not work when cutting powder or the like enters the inside.

本発明は、従来の問題点に鑑みなされたもので、その目的は、一般の工具（スパナ等）を使用し、金型に対して着脱自在に取り付けられ、いつでも簡単に作業できる。
また、液状の潤滑剤を挿入する挿入部により、作動するごとに微量な潤滑剤が内部に入り込み、常時作動状態を保つことのできるプランジャを提供するものである。The present invention has been made in view of the conventional problems, and an object of the present invention is to use a general tool (such as a wrench) and to be detachably attached to the mold so that it can be easily operated at any time.
Further, the present invention provides a plunger that can keep a constant operating state by inserting a small amount of lubricant into the interior by an insertion portion for inserting a liquid lubricant.

上記問題点を解決する手段として、外周に雌ネジ部を形成してなる筒体の内部に弾性体により出入りする摺動体を備えてなるプランジャにおいて、筒体の先端部を多面体に形成してなる取付部を設けてなること。また、取付部の対角寸法が、筒体の胴径より小さくすると共に、段差状に形成してなること。さらに、取付部が、六角筒形であること。その上、筒体の先端部に潤滑剤挿入部を設けてなることを特徴とする。  As means for solving the above-mentioned problems, in a plunger comprising a sliding body that enters and exits by an elastic body inside a cylindrical body formed with a female screw portion on the outer periphery, the tip of the cylindrical body is formed into a polyhedron. Provide a mounting part. In addition, the diagonal dimension of the mounting portion should be smaller than the barrel diameter of the cylinder and be formed in a stepped shape. Furthermore, the mounting part must be a hexagonal cylinder. In addition, a lubricant insertion portion is provided at the tip of the cylinder.

上述したように、本発明のプランジャによれば、一般の工具（スパナ等）を使用し、いつでも簡単に取り付け、取り外し作業ができ、多角形面にて螺設できるため、従来のようにツメが折れることなく確実に作業できると共に、潤滑剤挿入部を設けることにより潤滑剤が常に内部に入り込み、切断粉は入り込みにくい構造としている。  As described above, according to the plunger of the present invention, a general tool (such as a spanner) can be used, and it can be easily attached and detached at any time, and can be screwed on a polygonal surface. Work can be performed without breaking, and by providing a lubricant insertion portion, the lubricant always enters the inside, and the cutting powder does not easily enter.

プランジャ１は、外周に雌ネジ部２ａを形成してなる筒体２の内部に、スプリングによる弾性体３により出入りするピン形の摺動体４を備えてなると共に、筒体２の先端部を六角筒形に形成してなる取付部５を一体に設けてなるものである。
なお、弾性体３は六角レンチ等で螺設する押部６にて内設してなる。The plunger 1 is provided with a pin-shaped sliding body 4 that is moved in and out by an elastic body 3 by a spring inside a cylindrical body 2 formed with a female screw portion 2a on the outer periphery, and the distal end portion of the cylindrical body 2 is a hexagon. A mounting portion 5 formed in a cylindrical shape is integrally provided.
The elastic body 3 is internally provided by a pressing portion 6 that is screwed with a hexagon wrench or the like.

つぎに、取付例を説明する。
主に、打抜プレス金型や成形プレス金型の被加工物を押上げたり押下げたりする時に使用するもので、例えば下型Ｓの取付穴Ｓａにプランジャ１を、取付部５に六角レンチＲやスパナ等を差し込み、回転させることにより螺設する。
その後、プレス加工時にて被加工物Ｈを押上げるものである。
なお、取り外しも同様に行うものである。Next, an example of attachment will be described.
Mainly used when pushing up or down the workpiece of a punching press mold or molding press mold. For example, the plunger 1 is attached to the mounting hole Sa of the lower mold S, and the hexagon wrench is attached to the mounting portion 5. Insert an R or a spanner and rotate it.
Thereafter, the workpiece H is pushed up at the time of pressing.
The removal is performed in the same manner.

つぎに、第２実施例のプランジャを説明する。
プランジャ２１は、上記と同様な構造に加え、取付部２５の側部に貫通する潤滑剤挿入部２５ａを設けてなるものである。Next, the plunger of the second embodiment will be described.
In addition to the structure similar to the above, the plunger 21 is provided with a lubricant insertion portion 25a penetrating the side portion of the attachment portion 25.

このプランジャ２１は、下型Ｓ１に取り付けた後、空間部Ｋ内に潤滑剤Ｚ（潤滑油等）を入れることにより、潤滑剤挿入部２５ａから内部に入り込み、摺動体２４をスムーズに作動させることができる。  After the plunger 21 is attached to the lower mold S1, by inserting a lubricant Z (lubricating oil or the like) into the space K, the plunger 21 enters the inside from the lubricant insertion portion 25a, and smoothly operates the sliding body 24. Can do.

第３実施例のプランジャ３１は、筒体３２の先端面に凹状の潤滑剤挿入部３５ａを設けてなるもので、切断粉を入りにくくするためカエリ３５ａ１を設けてなるものである。  The plunger 31 of the third embodiment is provided with a concave lubricant insertion portion 35a on the distal end surface of the cylindrical body 32, and is provided with a burr 35a1 to make it difficult for cutting powder to enter.

上記の各実施例において、大きさや材質等は必要によって決めればよい。
また、取付部の形状も六角形に限定せず、四角形等でもよい。
さらに、本発明はスプリングプランジャ（先端部にピン形の摺動体を設けてなる）を主として記載（第１実施例〜第３実施例）しているが、ボールプランジャ（先端部に球体の摺動体を設けてなる）にも使用できるものである。（第４実施例）
このプランジャ４１は、球体による摺動体４４を設けると共に、六角筒形に形成してなる取付部４５を設けてなるもので、工作・工作物・工作治具・工作機械等のテーブルや移動面にボールプランジャを埋め込み、被加工物の移動をスムーズに行うことができるものである。In each of the above embodiments, the size, material, etc. may be determined as necessary.
Further, the shape of the mounting portion is not limited to a hexagon, and may be a square or the like.
Further, the present invention mainly describes a spring plunger (provided with a pin-shaped sliding body at the tip portion) (first to third embodiments), but a ball plunger (a spherical sliding body at the tip portion). Can also be used. (Fourth embodiment)
The plunger 41 is provided with a sliding body 44 made of a spherical body and a mounting portion 45 formed in a hexagonal cylindrical shape. The plunger 41 is attached to a table or moving surface of a work, a workpiece, a tool, a machine tool, or the like. By embedding a ball plunger, the workpiece can be moved smoothly.

本発明の第１実施形態を示すプランジャの一部縦断正面図。  The partial longitudinal section front view of the plunger which shows 1st Embodiment of this invention. 本発明の第１実施形態を示すプランジャの平面図。  The top view of the plunger which shows 1st Embodiment of this invention. 本発明の第１実施形態を示すプランジャの使用状態図。  The use condition figure of the plunger which shows a 1st embodiment of the present invention. 本発明の第２実施形態を示すプランジャの一部縦断正面図。  The partial longitudinal cross-sectional front view of the plunger which shows 2nd Embodiment of this invention. 本発明の第２実施形態を示すプランジャの平面図。  The top view of the plunger which shows 2nd Embodiment of this invention. 本発明の第３実施形態を示すプランジャの一部縦断正面図。  The partial longitudinal cross-sectional front view of the plunger which shows 3rd Embodiment of this invention. 本発明の第４実施形態を示すプランジャの一部縦断正面図。  The partial longitudinal cross-sectional front view of the plunger which shows 4th Embodiment of this invention. 本発明の第４実施形態を示すプランジャの平面図。  The top view of the plunger which shows 4th Embodiment of this invention.

符号の説明Explanation of symbols

１−−−プランジャ
２−−−筒体
３−−−弾性体
４−−−摺動体
５−−−取付部1 --- Plunger 2 --- Cylinder 3 --- Elastic body 4 --- Sliding body 5 --- Mounting part

Claims (4)

外周に雌ネジ部を形成してなる筒体の内部に弾性体により出入りする摺動体を備えてなるプランジャにおいて、筒体の先端部を多面体に形成してなる取付部を設けてなることを特徴とするプランジャ。  In a plunger having a sliding body that moves in and out by an elastic body inside a cylindrical body formed with a female screw portion on the outer periphery, an attachment portion formed by forming the tip of the cylindrical body into a polyhedron is provided. The plunger. 取付部の対角寸法が、筒体の胴径より小さくすると共に、段差状に形成してなることを特徴とする請求項１記載のプランジャ。  The plunger according to claim 1, wherein the diagonal dimension of the mounting portion is made smaller than the body diameter of the cylindrical body and is formed in a stepped shape. 取付部が、六角筒形であることを特徴とする請求項１又は２記載のプランジャ。  The plunger according to claim 1 or 2, wherein the mounting portion is a hexagonal cylinder. 筒体の先端部に潤滑剤挿入部を設けてなることを特徴とするプランジャ。  A plunger characterized in that a lubricant insertion portion is provided at the tip of a cylindrical body.
JP2004178980A 2004-05-20 2004-05-20 Plunger Expired - Lifetime JP4962827B2 (en)

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JP2004178980A JP4962827B2 (en) 2004-05-20 2004-05-20 Plunger

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JP2004178980A JP4962827B2 (en) 2004-05-20 2004-05-20 Plunger

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JP2005329458A true JP2005329458A (en) 2005-12-02
JP4962827B2 JP4962827B2 (en) 2012-06-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009285717A (en) * 2008-05-30 2009-12-10 Ikuo Oshita Spring plunger unit
CN106001265A (en) * 2016-06-03 2016-10-12 江苏威尔迪威阀业有限公司 Automatic ejection device for all-welded ball valve dies

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187618A (en) * 1984-10-08 1986-05-06 Miyako Hirao Compounding of granular perfume
JPS61138425A (en) * 1984-12-06 1986-06-25 シュプレッヘル　エネルギー Motor protection switch
JPH08257657A (en) * 1995-03-28 1996-10-08 Daiwa Kogyo Kk Ejector unit for press die
JP2001123533A (en) * 1999-10-27 2001-05-08 Kanai:Kk Jointing device
JP2003170230A (en) * 2001-12-10 2003-06-17 Suzuki Co Ltd Molding apparatus
JP2005046894A (en) * 2003-07-30 2005-02-24 Toyota Motor Corp Ejector unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6187618A (en) * 1984-10-08 1986-05-06 Miyako Hirao Compounding of granular perfume
JPS61138425A (en) * 1984-12-06 1986-06-25 シュプレッヘル　エネルギー Motor protection switch
JPH08257657A (en) * 1995-03-28 1996-10-08 Daiwa Kogyo Kk Ejector unit for press die
JP2001123533A (en) * 1999-10-27 2001-05-08 Kanai:Kk Jointing device
JP2003170230A (en) * 2001-12-10 2003-06-17 Suzuki Co Ltd Molding apparatus
JP2005046894A (en) * 2003-07-30 2005-02-24 Toyota Motor Corp Ejector unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009285717A (en) * 2008-05-30 2009-12-10 Ikuo Oshita Spring plunger unit
CN106001265A (en) * 2016-06-03 2016-10-12 江苏威尔迪威阀业有限公司 Automatic ejection device for all-welded ball valve dies

Also Published As

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JP4962827B2 (en) 2012-06-27

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