JP2004074375A - Finishing material for barrel finishing - Google Patents

Finishing material for barrel finishing Download PDF

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Publication number
JP2004074375A
JP2004074375A JP2002241710A JP2002241710A JP2004074375A JP 2004074375 A JP2004074375 A JP 2004074375A JP 2002241710 A JP2002241710 A JP 2002241710A JP 2002241710 A JP2002241710 A JP 2002241710A JP 2004074375 A JP2004074375 A JP 2004074375A
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JP
Japan
Prior art keywords
abrasive
barrel
specific gravity
finishing
mixed
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
JP2002241710A
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Japanese (ja)
Inventor
Tatsuo Takashima
高嶋 達雄
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.)
Takashima Giken Co Ltd
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Takashima Giken 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 Takashima Giken Co Ltd filed Critical Takashima Giken Co Ltd
Priority to JP2002241710A priority Critical patent/JP2004074375A/en
Publication of JP2004074375A publication Critical patent/JP2004074375A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide finishing material for barrel finishing that is uniformly mixed with parts which are objects to be finished, so that they rub each other to achieve effective finishing in short period of time. <P>SOLUTION: The finishing material comprises resin mixed with a number of ceramic grains 1. A number of grains 2 of metal are mixed in it to set its specific gravity at 3-5. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、バレル研磨機において使用するもので、効率よく短時間で綺麗に研磨することが出来る研磨材に関するものである。
【0002】
【従来の技術】
メガネフレームの部品等、細かい成型部品の表面を磨く場合、従来からバレル研磨機が使用されている。又、プレスで打抜かれた金属製部品にはバリが発生しているが、このバリを取り除くためにバレル研磨機が使用される。バレル研磨機にも色々な型式があり、例えば、回転式バレル研磨機、遠心バレル研磨機、流重力バレル研磨機、振動バレル研磨機などが知られている。
【0003】
図3は上記回転式バレル研磨機のバレル断面を示しているが、多角形断面のバレル(イ)は中心Oを軸として回転することで、バレル内に収容している部品(被研磨材)(ロ)、(ロ)・・及び研磨材(ハ)、(ハ)・・は互いに混ざり合って流動する。バレル(イ)が反時計方向(矢印方向)に回転するならば、部品(ロ)、(ロ)・・及び研磨材(ハ)、(ハ)・・は該バレルの回転に伴って上昇し、ある高さから崩れ落ちる。
【0004】
この上昇と崩れ落ちの繰り返しによって部品(ロ)、(ロ)・・は研磨材(ハ)、(ハ)・・と混ざり合って流動することで表面は擦れ合って磨かれる。プレス打抜きされた部品(ロ)、(ロ)・・であれば、研磨材(ハ)、(ハ)・・と擦れ合うことでバリは取り除かれる。
【0005】
図4は遠心バレル研磨機のバレル断面を示している。中心Oから延びる4本のアーム(ニ)、(ニ)・・の先端には夫々バレル(ホ)、(ホ)・・が取付けられ、アーム(ニ)、(ニ)・・の回転に伴ってバレル(ホ)、(ホ)・・は回転する。この場合、バレル(ホ)、(ホ)・・はアーム(ニ)、(ニ)・・の回転軸を中心として回転するが、バレル(ホ)、(ホ)・・の軸M,M・・を中心としては回転しないように成っている。
【0006】
すなわち、各バレル(ホ)、(ホ)・・は向きを変えることなくアーム(ニ)、(ニ)・・の回転軸の周りを回転(公転)することになる。従って、バレル内に収容されている部品及び研磨材は流動して互い擦れ合い、部品の表面が磨かれ、又部品に残っているバリは取り除かれる。
【0007】
一方、流重力バレル研磨機は電気洗濯機の浴槽内に部品と研磨材を混合して収容し多用なものであり、浴槽の回転に伴って流動する部品と研磨材は互いに擦れ合い、部品の表面が磨かれる。又発生しているバリは取り除かれる。さらに、振動バレル研磨機は、バレル内に部品と研磨材を収容し、該バレルに振動を与えることで該部品と研磨材が互いに擦れ合って磨かれる。
【0008】
このように、バレル研磨機には色々な型式があるが、何れのバレル研磨機も部品と研磨材が擦れ合うことで表面が磨かれる訳であるが、従来のバレル研磨機に使用されている研磨材は部品に比較してその比重が小さいこともあり、研磨材同士が寄り集まってしまい、均等に混ざり合うことが出来ない。その結果、部品同士が擦れ合い、研磨材同士が擦れ合うような現象となる。
【0009】
例えば、前記図3に示している回転式バレル研磨機の場合、部品が上昇して崩れ落ちる領域と研磨材が上昇して崩れ落ちる領域が分離してしまう。従って、部品は効率よく磨かれない為に研磨時間は長くなり、又部品同士の擦れ合いによって表面にキズが付くこともある。
【0010】
【発明が解決しようとする課題】
このように、従来のバレル研磨機に使用される研磨材には上記のごとき問題がある。本発明が解決しようとする課題はこの問題点であり、被研磨材である部品と均等に混ざり合って、均等に擦れ合うことが出来、短時間でバレル研磨を行い得るバレル研磨機用研磨材を提供する。
【0011】
【課題を解決する為の手段】
本発明に係るバレル研磨機用研磨材はその比重を大きくし、研磨される部品の比重に近づけたものである。従来の研磨材には色々な形態があって、樹脂にセラミック粉末を混在したもの、セラミックを固めたものなど色々であるが、その比重は約2.3〜2.5である。金属製部品を研磨する場合、従来の比重からなる研磨材では該部品との比重差が大きく、研磨中に部品と分離してしまう。
【0012】
そこで、本発明の研磨材の比重を約3〜5又はそれ以上としている。研磨材の形状は限定しないが、一般には三角錐や円錐などが主であって、比重を大きくするために、内部に金属製粒子を混在する。以下、本発明に係る実施例図面に基づいて詳細に説明する。
【0013】
【実施例】
図1は本発明に係るバレル研磨機用研磨材を示している具体例であり、その形状は円錐形を成している。この円錐研磨材は樹脂製であって、内部にはセラミック粒子1,1・・及び金属製粒子2,2・・が混在している。すなわち高温加熱して溶けた樹脂中に上記セラミック粒子1,1・・及び金属製粒子2,2・・を混入して成形している。ここで、金属製粒子2はその比重が8〜10程度のものが使用され、これを研磨材中に混入することで、該研磨材の比重は3〜5程度にすることが出来る。
【0014】
図2は円柱形の研磨材を示しているが、この研磨材も前記円錐形研磨材と同じように、樹脂中にセラミック粒子1,1・・と金属製粒子2,2・・を混在したものであり、その比重は3〜5と成っている。ところで、本発明の研磨材は樹脂製に限るものではなく、セラミック製とし、すなわちセラミック粉末を固めたものに金属製粒子を混在して構成することも出来る。
【0015】
ところで、メガネフレームの部品は小さくてその形状が複雑化している為に、成形された部品の表面を磨くために従来からバレル研磨が行われて来ている。近年、金属製メガネフレームとして多用されている材質にチタンがあり、このチタンの比重は約4.5である。従来の研磨材の場合、2.3〜2.5の比重である為に、チタン製部品との間に大きな比重差がある為にバレル研磨時に分離してしまい、研磨効率が低下する。
【0016】
又、アルミニウムを材質としたメガネフレーム部品は、その比重が約2.4である為に、従来の研磨材を使用して研磨することが出来る。一方、マグネシウム部品では、その比重が約1.8である為に、従来の研磨材より小さな比重の方が適している。
【0017】
以上述べたように、本発明に係るバレル研磨機用研磨材は、内部に金属製粒子を混在することで、その比重を約3〜5としたものであり、次のような効果を得ることが出来る。
【0018】
【発明の効果】
本発明のバレル研磨機用研磨材はその比重が約3〜5と成っている為に、近年多用されているチタン製のメガネフレーム部品をバレル研磨する場合、該研磨材と部品は均一に混ざり合うことが出来る。これは乾式研磨であっても湿式研磨であっても同じである。従って、研磨時間は短くなって研磨効率は向上する。又、部品と研磨材が均一に混ざり合う為に、部品同士の擦れ合いは減少し、バリが発生した部品同士の接触に基づく表面キズの発生はない。
【0019】
そして、本発明の研磨材は内部に金属製粒子を混在している為に磁石に吸着され、研磨される部品が磁石に吸着しないものであるならば、部品と研磨材を簡単に分離・選別することが出来、研磨材の再利用が出来る。
【図面の簡単な説明】
【図1】本発明に係るバレル研磨機用研磨材。
【図2】本発明に係るバレル研磨機用研磨材。
【図3】回転式バレル研磨機。
【図4】遠心バレル研磨機。
【符号の説明】
1 セラミック粒子
2 金属製粒子
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an abrasive used in a barrel polishing machine, which is capable of efficiently and neatly polishing in a short time.
[0002]
[Prior art]
2. Description of the Related Art In the case of polishing the surface of a fine molded part such as a part of an eyeglass frame, a barrel polishing machine has been conventionally used. In addition, burrs are generated on metal parts punched by a press, and a barrel polishing machine is used to remove the burrs. There are various types of barrel polishers, for example, a rotary barrel polisher, a centrifugal barrel polisher, a flow gravity barrel polisher, and a vibration barrel polisher are known.
[0003]
FIG. 3 shows a barrel cross section of the rotary barrel polishing machine. A barrel (a) having a polygonal cross section is rotated about a center O, and is a component (a material to be polished) housed in the barrel. (B), (b)... And the abrasives (c), (c). If the barrel (a) rotates in the counterclockwise direction (the direction of the arrow), the parts (b), (b) and the abrasives (c) and (c) rise with the rotation of the barrel. , Falling from a certain height.
[0004]
The parts (b), (b),... Are mixed and flow with the abrasives (c), (c),. In the case of the parts (b), (b), etc. that have been stamped out, the burrs are removed by rubbing against the abrasives (c), (c),.
[0005]
FIG. 4 shows a barrel cross section of the centrifugal barrel polishing machine. At the tips of four arms (d), (d),... Extending from the center O, barrels (e), (e) are attached, respectively, with the rotation of the arms (d), (d),. The barrels (e) and (e) rotate. In this case, the barrels (e) and (e) rotate about the rotation axes of the arms (d) and (d), but the axes M and M of the barrels (e) and (e)・ It does not rotate around the center.
[0006]
That is, each barrel (e), (e)... Rotates (revolves) around the rotation axis of the arm (d), (d). Thus, the component and abrasive contained within the barrel flow and rub against each other, polishing the surface of the component and removing any burrs remaining on the component.
[0007]
On the other hand, a flow gravity barrel polishing machine is a versatile type in which components and abrasives are mixed and accommodated in a bathtub of an electric washing machine. The surface is polished. The generated burrs are removed. Further, the vibrating barrel polishing machine accommodates a component and an abrasive in a barrel, and applies vibration to the barrel so that the component and the abrasive rub against each other and are polished.
[0008]
As described above, there are various types of barrel polishing machines, and the surface of each of the barrel polishing machines is polished by rubbing a part and an abrasive material. Since the specific gravity of the material is smaller than that of the parts, the abrasives gather together and cannot be evenly mixed. As a result, a phenomenon occurs in which the parts rub against each other and the abrasives rub against each other.
[0009]
For example, in the case of the rotary barrel polishing machine shown in FIG. 3, a region where the component rises and collapses is separated from a region where the abrasive rises and collapses. Therefore, since the parts are not efficiently polished, the polishing time becomes longer, and the surface may be scratched due to the rubbing between the parts.
[0010]
[Problems to be solved by the invention]
As described above, the abrasive used in the conventional barrel polishing machine has the above-mentioned problems. The problem to be solved by the present invention is this problem, an abrasive for a barrel polisher that can be evenly mixed with a part to be polished, rubbed evenly, and capable of performing barrel polishing in a short time. provide.
[0011]
[Means for solving the problem]
The abrasive for a barrel polishing machine according to the present invention has its specific gravity increased so as to approach the specific gravity of a part to be polished. Conventional abrasives have various forms, such as a mixture of a resin and a ceramic powder or a solidified ceramic, and the specific gravity is about 2.3 to 2.5. When a metal part is polished, a conventional abrasive having a specific gravity has a large difference in specific gravity from the part and is separated from the part during polishing.
[0012]
Therefore, the specific gravity of the abrasive of the present invention is set to about 3 to 5 or more. Although the shape of the abrasive is not limited, it is generally a triangular pyramid or a cone, and metal particles are mixed therein to increase the specific gravity. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[0013]
【Example】
FIG. 1 is a specific example showing a polishing material for a barrel polishing machine according to the present invention, which has a conical shape. This conical abrasive is made of resin, and contains ceramic particles 1, 1,... And metal particles 2, 2,. That is, the ceramic particles 1, 1,... And the metal particles 2, 2,. Here, the metal particles 2 having a specific gravity of about 8 to 10 are used, and by mixing this into the abrasive, the specific gravity of the abrasive can be made about 3 to 5.
[0014]
FIG. 2 shows a cylindrical abrasive, which also contains ceramic particles 1, 1,... And metallic particles 2, 2,. And its specific gravity is 3-5. By the way, the abrasive of the present invention is not limited to resin, but may be made of ceramic, that is, a mixture of hardened ceramic powder and metal particles.
[0015]
By the way, since the parts of the eyeglass frame are small and their shapes are complicated, barrel polishing has been conventionally performed to polish the surface of the formed parts. In recent years, titanium has been frequently used as a metal eyeglass frame, and the specific gravity of titanium is about 4.5. In the case of a conventional abrasive, since it has a specific gravity of 2.3 to 2.5, there is a large difference in specific gravity with a titanium part, so that the abrasive is separated during barrel polishing, and the polishing efficiency is reduced.
[0016]
Also, since the spectacle frame parts made of aluminum have a specific gravity of about 2.4, they can be polished using a conventional abrasive. On the other hand, since the specific gravity of a magnesium component is about 1.8, a specific gravity smaller than that of a conventional abrasive is more suitable.
[0017]
As described above, the abrasive for a barrel polishing machine according to the present invention has a specific gravity of about 3 to 5 by mixing metal particles inside, and has the following effects. Can be done.
[0018]
【The invention's effect】
Since the specific gravity of the abrasive for a barrel polishing machine of the present invention is about 3 to 5, when the titanium eyeglass frame parts which have been frequently used in recent years are barrel-polished, the abrasive and the parts are uniformly mixed. Can fit. This applies to both dry polishing and wet polishing. Accordingly, the polishing time is shortened and the polishing efficiency is improved. Also, since the components and the abrasive are mixed uniformly, the friction between the components is reduced, and there is no occurrence of surface flaws due to the contact between the burrs.
[0019]
The abrasive of the present invention is adsorbed by the magnet because metal particles are mixed therein, and if the part to be polished does not adhere to the magnet, the part and the abrasive can be easily separated and sorted. And the abrasive can be reused.
[Brief description of the drawings]
FIG. 1 is an abrasive for a barrel polishing machine according to the present invention.
FIG. 2 is an abrasive for a barrel polishing machine according to the present invention.
FIG. 3 is a rotary barrel polishing machine.
FIG. 4 is a centrifugal barrel polishing machine.
[Explanation of symbols]
1 ceramic particles 2 metal particles

Claims (3)

バレル研磨機に使用される研磨材において、内部には金属製粒子を混在してその比重を約3〜5としたことを特徴とするバレル研磨機用研磨材。An abrasive used for a barrel polishing machine, wherein metal particles are mixed therein to have a specific gravity of about 3 to 5, which is used for a barrel polishing machine. バレル研磨機に使用される研磨材において、該研磨材はセラミックを混入した樹脂製とし、その内部には金属製粒子を混在してその比重を約3〜5としたことを特徴とするバレル研磨機用研磨材。An abrasive used in a barrel polishing machine, wherein the abrasive is made of a resin mixed with a ceramic, and metal particles are mixed therein to have a specific gravity of about 3 to 5. Abrasive for machine. バレル研磨機に使用される研磨材において、該研磨材はセラミック粉末を固めたセラミック製とし、内部には金属製粒子を混在してその比重を約3〜5としたことを特徴とするバレル研磨機用研磨材。An abrasive used in a barrel polishing machine, wherein the abrasive is made of ceramic obtained by solidifying ceramic powder, and metal particles are mixed therein to have a specific gravity of about 3 to 5. Abrasive for machine.
JP2002241710A 2002-08-22 2002-08-22 Finishing material for barrel finishing Pending JP2004074375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002241710A JP2004074375A (en) 2002-08-22 2002-08-22 Finishing material for barrel finishing

Publications (1)

Publication Number Publication Date
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Family Applications (1)

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Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100674848B1 (en) 2005-04-01 2007-01-26 삼성전기주식회사 High Capacitancy Metal-Ceramic-Polymer Dielectric Material And Preparing Method For Embedded Capacitor Using The Same
WO2012042681A1 (en) * 2010-09-28 2012-04-05 新東工業株式会社 Polishing unit and polishing method by polishing unit
KR200463067Y1 (en) 2012-02-21 2012-10-16 안수진 Barrel Polishing Apparatus of Low Speed

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100674848B1 (en) 2005-04-01 2007-01-26 삼성전기주식회사 High Capacitancy Metal-Ceramic-Polymer Dielectric Material And Preparing Method For Embedded Capacitor Using The Same
WO2012042681A1 (en) * 2010-09-28 2012-04-05 新東工業株式会社 Polishing unit and polishing method by polishing unit
KR200463067Y1 (en) 2012-02-21 2012-10-16 안수진 Barrel Polishing Apparatus of Low Speed

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