JP4074286B2 - Part line polishing method for resin molded products - Google Patents
Part line polishing method for resin molded products Download PDFInfo
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- JP4074286B2 JP4074286B2 JP2004341185A JP2004341185A JP4074286B2 JP 4074286 B2 JP4074286 B2 JP 4074286B2 JP 2004341185 A JP2004341185 A JP 2004341185A JP 2004341185 A JP2004341185 A JP 2004341185A JP 4074286 B2 JP4074286 B2 JP 4074286B2
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- 238000005498 polishing Methods 0.000 title claims description 248
- 229920005989 resin Polymers 0.000 title claims description 219
- 239000011347 resin Substances 0.000 title claims description 219
- 238000000034 method Methods 0.000 title claims description 45
- 238000000465 moulding Methods 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 4
- 238000007517 polishing process Methods 0.000 description 7
- 239000003082 abrasive agent Substances 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
本発明は、樹脂めっき処理前の樹脂成形品のパートラインを研磨する方法に係り、特に凹凸部、角部や曲面部を有する樹脂成形品の周囲に形成されたパートラインを研磨する樹脂成形品のパートライン研磨方法に関する。 The present invention relates to a method for polishing a part line of a resin molded product before a resin plating process, and in particular, a resin molded product for polishing a part line formed around a resin molded product having uneven portions, corner portions, and curved surface portions. This relates to a part line polishing method.
樹脂めっきを施す樹脂成形品については、その樹脂めっきした後、クラック(割れ)が生じやすいので、樹脂成形する際に形成された外周部のパートライン、即ち、ばりや段差を研磨している。また、直接人の手が触れる樹脂成形品については、パートラインを必ず研磨する必要がある。例えば図6に示すように、合成樹脂製の取っ手51では金型成形の際にその接合部に形成されたパートライン52を研磨していた。 Since a resin molded product to be subjected to resin plating is likely to crack after the resin plating, the part line of the outer peripheral portion formed at the time of resin molding, that is, a flash or a step is polished. Moreover, it is necessary to polish a part line about the resin molded product which a human hand touches directly. For example, as shown in FIG. 6, a synthetic resin handle 51 is used to polish a part line 52 formed at the joint portion during molding.
従来は、このような樹脂成形品のパートラインについては、一つ一つの樹脂成形品を手作業で研磨していた。しかし、1個の樹脂成形品の研磨作業に約30秒から2分以上もかかり研磨処理に長時間を要していた。しかも、手作業の研磨はバラツキが多く、製品の一定品質を維持することが困難であった。 Conventionally, for each part line of such resin molded products, each resin molded product has been manually polished. However, it took about 30 seconds to 2 minutes or more to polish one resin molded product, and the polishing process took a long time. Moreover, manual polishing has many variations, and it has been difficult to maintain a constant quality of the product.
そこで、樹脂成形品を自動研磨する技術が提案されている。例えば、特許文献1の特開2000−176807号公報「樹脂成形品のばり取り装置」のように、板状の樹脂成形品の外周部のばりを除去するための樹脂成形品のばり取り方法であって、複数の上記樹脂成形品を積層し、該積層状態の樹脂成形品の外周部に1以上の回転ブラシを接触させた状態で、該回転ブラシを回転駆動しつつ上記積層状態の樹脂成形品と上記回転ブラシとを該樹脂成形品の積層方向に相対移動させて各樹脂成形品の外周部のばりを順次除去することを特徴とする樹脂成形品のばり取り方法が提案されている。 Thus, a technique for automatically polishing a resin molded product has been proposed. For example, as disclosed in Japanese Patent Application Laid-Open No. 2000-176807 “Resin deburring device for resin molded products”, a deburring method for resin molded products for removing deburring on the outer periphery of a plate-shaped resin molded product. A plurality of the resin molded products are stacked, and the one or more rotating brushes are in contact with the outer peripheral portion of the stacked resin molded product, and the rotating brush is rotationally driven while the stacked resin molded products are stacked. There has been proposed a deburring method for a resin molded product, in which the outer peripheral portion of each resin molded product is sequentially removed by relatively moving the product and the rotating brush in the stacking direction of the resin molded product.
また、特許文献1には、積層状態の樹脂成形品を外周部の一部を露出させて積層方向に移動可能に案内支持する第1ガイド部と、上記第1ガイド部上の樹脂成形品の上記露出部分のばりを除去する第1回転ブラシと、上記第1ガイド部に接続して設けられ、上記積層状態の樹脂成形品を外周部の上記第1回転ブラシによるばりの除去が行われない部分を露出させて積層方向に移動可能に案内支持する第2ガイド部と、上記第2ガイド部上の樹脂成形品の上記露出部分のばりを除去する第2回転ブラシと、上記各樹脂成形品の外周部のばりが上記第1及び第2回転ブラシにより順次除去されるように上記積層状態の樹脂成形品を上記第1及び第2ガイド部上で積層方向に移動させる移動機構とを備えていることを特徴とする樹脂成形品のばり取り装置が提案されている。
特許文献1のばり取り方法、ばり取り装置は、スリットを有するような外周形状であっても、樹脂成形品のばり以外の部分に傷を付けることなく、かつ整列状態のままでばりの除去作業を行い、ブロックベルトのブロックのような板状の樹脂成形品の外周部のばりを除去することができる。しかし、合成樹脂製の取っ手のような凹凸部と曲面部を共に有する樹脂成形品の外周部のパートラインは研磨することは困難である。即ち、複雑な形状の樹脂成形品については、そのパートラインを円滑に研磨することができないという問題を有していた。 Even if the deburring method and deburring device of Patent Document 1 have an outer peripheral shape having a slit, the deburring operation is performed without damaging portions other than the flash of the resin molded product and in an aligned state. The flash of the outer peripheral part of a plate-shaped resin molded product like a block of a block belt can be removed. However, it is difficult to polish the part line of the outer peripheral part of the resin molded product having both the uneven part and the curved part such as a handle made of synthetic resin. That is, the resin molded product having a complicated shape has a problem that its part line cannot be polished smoothly.
また、特許文献1のばり取り方法、ばり取り装置では、回転ブラシを採用しているので、樹脂成形品の研磨面に回転方向の傷が付きやすく、その後の樹脂めっきに不具合が生じやすので、手に触れたときに違和感が生じる製品になりやすいという問題を有していた。 Further, in the deburring method and deburring apparatus of Patent Document 1, since a rotating brush is employed, the polishing surface of the resin molded product is easily scratched in the rotation direction, and defects in subsequent resin plating are likely to occur. There was a problem that it was easy to become a product that was uncomfortable when touched.
本発明は、かかる問題点を解決するために創案されたものである。すなわち、本発明の目的は、研磨ベルトによる研磨と、板状の研磨材による仕上研磨とを組み合わせることで、凹凸部、角部や曲面部を有する樹脂成形品の周囲に形成されたパートラインを迅速に連続して研磨することができ、かつその研磨面を平滑なものに仕上げることができる樹脂成形品のパートライン研磨方法を提供することにある。 The present invention has been developed to solve such problems. That is, the object of the present invention is to combine part polishing formed by a polishing belt and finish polishing with a plate-shaped abrasive material around a resin molded product having uneven portions, corner portions, and curved portions. It is an object of the present invention to provide a part-line polishing method for a resin molded product, which can be rapidly and continuously polished and the polished surface can be finished to be smooth.
本発明によれば、凹凸部、角部や曲面部を有する樹脂成形品(W)周囲の接合部に、金型成形の際に形成されたパートライン(52)を研磨する樹脂成形品のパートライン研磨方法であって、前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を、研磨開始と終わりで研磨力に差が生じないようにその周速度を使用途中に可変する研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法が提供される。 According to the present invention, the part of the resin molded product that polishes the part line (52) formed at the time of mold molding at the joint around the resin molded product (W) having the concavo-convex part, the corner part and the curved surface part. In the line polishing method, for the concave part of the part line (52) formed in the resin molded product (W), there is no difference in polishing force between the start and end of the part line (52). In this way, the polishing surface of the polishing belt (1) whose peripheral speed is variable during use is brought close to and pressed while being polished, and the corners and curved surfaces of the part line (52) formed on the resin molded product (W) As for the part, while moving the resin molded product (W) in a direction substantially perpendicular to the surface of the polishing belt (1) so that the part line (52) rubs the polishing surface of the polishing belt (1). Part line around the resin molded product (W) 52) is continuously polished so that the part line (52) is smooth, and subsequently, the concave part and the corner part of the part line (52) around the resin molded product (W). For the curved surface portion, the part line around the resin molded product (W) while moving the resin molded product (W) so that the part line (52) rubs the surface of the plate-like abrasive (3). By polishing (52), there is provided a part-line polishing method for a resin molded product, characterized in that finish polishing is performed so as to round the edge portion generated by polishing of the polishing belt (1).
例えば、凹凸部、角部や曲面部を有する樹脂成形品(W)の周囲の接合部に、金型成形の際に形成されたパートライン(52)を研磨する樹脂成形品のパートライン研磨方法であって、前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を、研磨開始と終わりで研磨力に差が生じないようにその周速度を使用途中に可変する研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨するする。 For example, a part-line polishing method for a resin molded product in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven portion, a corner portion, or a curved surface portion. And about the concave-shaped part of the part line (52) in which the said resin molded product (W) was formed, this part line (52) is set so that there may be no difference in polishing force at the start and end of polishing. About the corners and curved surface shape parts of the part line (52) formed on the resin molded product (W) by polishing while pressing the polishing surface of the polishing belt (1) whose peripheral speed is variable during use. The part line around the resin molded product (W) while moving the resin molded product (W) in a substantially horizontal direction so that the part line (52) rubs the polishing surface of the polishing belt (1). By polishing (52) continuously The part line (52) is polished so as to be smooth, and subsequently the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W) The part line (52) around the resin molded product (W) is continuously moved while moving the resin molded product (W) in a substantially horizontal direction so that the surface 52) rubs the surface of the plate-like abrasive (3). By performing polishing, finish polishing is performed so as to round the edge portion generated by the polishing of the polishing belt (1).
または、前記板状の研磨材(3)の回転速度を、その研磨開始と終わりで研磨力に差が生じないように、該板状の研磨材(3)の使用途中に可変し、又は前記板状の研磨材(3)の振動速度を、該板状の研磨材(3)の使用途中に可変する。 Alternatively, the rotational speed of the plate-shaped abrasive material (3), so that its difference in polishing power polishing start and end does not occur, and variable during use of the plate-shaped abrasive material (3), or the The vibration speed of the plate-like abrasive (3) is varied during use of the plate-like abrasive (3).
前記板状の研磨材(3)を偏心させて回転させながら、前記樹脂成形品(W)の周囲のパートライン(52)を仕上研磨する。
前記板状の研磨材(3)の振動の振幅を、その研磨開始と終わりで研磨力に差が生じないように、使用途中に可変させながら、前記樹脂成形品(W)の周囲のパートライン(52)を仕上研磨する。
The part line (52) around the resin molded product (W) is finish-polished while the plate-like abrasive (3) is eccentrically rotated.
Part line around the resin molded product (W) while varying the amplitude of vibration of the plate-like abrasive (3) during use so that there is no difference in polishing force between the start and end of polishing. (52) is finish-polished.
本発明では、凹凸部、角部や曲面部を有する樹脂成形品(W)の周囲に形成されたパートライン(52)に研磨ベルト(1)を離接しながら、該樹脂成形品(W)を研磨し、更に曲面形状部のパートライン(52)を連続研磨することで、平滑な研磨面になるように樹脂成形品(W)を研磨することができる。または逆に曲面形状部のパートライン(52)を研磨した後、凹形状部のパートライン(52)を連続して研磨することができる。
この研磨ベルト(1)の連続研磨に引き続いて、回転又は振動する板状の研磨材(3)に対して、樹脂成形品(W)の周囲のパートライン(52)が擦るように、樹脂成形品(W)を略水平方向に移動させながら、この樹脂成形品(W)周囲のパートライン(52)を連続して仕上研磨でき、円滑に研磨仕上げを完成させることができる。特に、この板状の研磨材(3)による仕上研磨では、上述した研磨ベルト(1)の研磨により発生した樹脂成形品(W)のエッジ部分に、丸みを付けることができるので、この樹脂成形品(W)を樹脂めっきする際に発生する「膨れ」や「クラック」を防止することができる。
しかも、研磨ベルト(1)による研磨と、回転板状の研磨材(3)による仕上研磨とを組み合わせることで、樹脂成形品(W)を迅速に研磨することができる。
In the present invention, the resin molded product (W) is attached to the part line (52) formed around the resin molded product (W) having the concavo-convex portion, the corner portion, and the curved surface portion while the polishing belt (1) is separated from and contacted. By polishing and further polishing the part line (52) of the curved surface portion, the resin molded product (W) can be polished so as to have a smooth polished surface. Or conversely, after polishing the part line (52) of the curved surface portion, the part line (52) of the concave portion can be continuously polished.
Subsequent to the continuous polishing of the polishing belt (1), the resin molding is performed so that the part line (52) around the resin molded product (W) rubs against the rotating or vibrating plate-like abrasive (3). The part line (52) around the resin molded product (W) can be continuously polished while moving the product (W) in a substantially horizontal direction, and the polishing finish can be completed smoothly. In particular, in the finish polishing with the plate-like abrasive (3), the edge portion of the resin molded product (W) generated by the polishing of the polishing belt (1) can be rounded. It is possible to prevent “blowing” and “cracking” that occur when the product (W) is resin-plated.
In addition, the resin molded product (W) can be quickly polished by combining polishing with the polishing belt (1) and finish polishing with the rotating plate-like abrasive (3).
研磨ベルト(1)の研磨開始と終わりでは研磨力の差が大きいので、その周速度を、使用途中に可変することで、研磨効果を一定に維持しながら研磨処理の均質化を図ることができる。 Since there is a large difference in polishing force between the start and end of polishing of the polishing belt (1), the peripheral speed can be varied during use, so that the polishing process can be made uniform while maintaining the polishing effect constant. .
板状の研磨材(3)の回転速度、振動速度等についても、その研磨開始と終わりでは研磨力の差が大きいので、使用途中に可変することで、研磨効果を一定に維持しながら研磨処理の均質化を図ることができる。
板状の研磨材(3)を偏心させて回転させながら、樹脂成形品(W)の周囲のパートライン(52)を仕上研磨することで、研磨面に回転方向の傷を付けないようにすることができる。同様に、板状の研磨材(3)を振動の振幅を可変させながら、樹脂成形品(W)の周囲のパートライン(52)を仕上研磨することで、研磨面に傷を付けないようにすることができる。
Regarding the rotational speed, vibration speed, etc. of the plate-like abrasive (3), there is a large difference in polishing power at the start and end of the polishing. Therefore, it can be varied during use so that the polishing effect is maintained while maintaining the polishing effect constant. Can be homogenized.
By polishing the part line (52) around the resin molded product (W) while rotating the plate-shaped abrasive (3) eccentrically, the polishing surface is not damaged in the rotational direction. be able to. Similarly, by polishing the part line (52) around the resin molded product (W) while varying the amplitude of vibration of the plate-like abrasive (3), the polished surface is not damaged. can do.
本発明は、凹凸部、角部や曲面部を有する樹脂成形品に形成されたパートラインについて、研磨ベルトによる連続した研磨と、板状の研磨材による仕上げの連続した研磨を組み合わせた樹脂成形品のパートライン研磨方法である。 The present invention relates to a resin molded product that combines continuous polishing with a polishing belt and continuous polishing with a plate-shaped abrasive for part lines formed on a resin molded product having irregularities, corners and curved surfaces. This is a part line polishing method.
以下、本発明の好ましい実施の形態を図面を参照して説明する。
図1は本発明の樹脂成形品のパートライン研磨方法を示す工程図である。図2は本発明の樹脂成形品のパートライン研磨方法を実施する際に使用する研磨ベルトと板状の研磨材との説明構成正面図である。図3は本発明の樹脂成形品のパートライン研磨方法を実施する際に使用する研磨ベルトと板状の研磨材との説明構成平面図である。この図1では、樹脂成形品Wとして合成樹脂製の取っ手を研磨する標準的な研磨工程を説明する。
先ず、これから研磨しようとする樹脂成形品Wを治具(図示していない)にセットする。例えば、合成樹脂製の取っ手では、取っ手の軸止め用の孔やスリットが開けられた部分に、治具を嵌めこみ不要な揺れが生じないようにする。この治具を起動させると共に、研磨ベルト1の研磨面を樹脂成形品Wに近づけるために、研磨ベルト1の内側に配置したパッド2を押圧する。これは、凹凸部、角部や曲面部を有する樹脂成形品Wの外周部に形成されたパートライン52であっても円滑にそのパートライン52を研磨するためである。
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a process diagram showing a part-line polishing method for a resin molded product according to the present invention. FIG. 2 is an explanatory front view of a polishing belt and a plate-like abrasive used when carrying out the part-line polishing method for a resin molded product of the present invention. FIG. 3 is an explanatory configuration plan view of a polishing belt and a plate-like abrasive used when carrying out the part-line polishing method for a resin molded product of the present invention. In FIG. 1, a standard polishing process for polishing a synthetic resin handle as the resin molded product W will be described.
First, the resin molded product W to be polished is set on a jig (not shown). For example, in a handle made of a synthetic resin, a jig is fitted in a portion where a hole or slit for holding a handle shaft is opened so that unnecessary shaking does not occur. While starting this jig | tool, in order to make the grinding | polishing surface of the grinding | polishing belt 1 close to the resin molded product W, the pad 2 arrange | positioned inside the grinding | polishing belt 1 is pressed. This is because even the part line 52 formed on the outer peripheral part of the resin molded product W having the uneven part, the corner part or the curved part is polished smoothly.
この研磨ベルト1による研磨は、樹脂成形品Wに樹脂めっきしたときに、パートライン52のばり又は段差が、膨れ又はクラックの起点となるため、このばり又は段差を除去することを目的とする。 The polishing by the polishing belt 1 is intended to remove the flash or step because the flash or step of the part line 52 becomes a starting point of swelling or cracking when the resin molded product W is resin-plated.
図4の本発明の樹脂成形品の動作状態を示す平面図であり、(a)から(e)までは研磨ベルトによる研磨処理の状態、(f)から(j)は板状の研磨材による仕上研磨処理の状態である。
この樹脂成形品Wの凹形状部のパートライン52は、研磨ベルト1に押し当てながら研磨した後、パッド2を後退させて、この研磨ベルト1を後退させる(図2参照)。このような研磨ベルト1の位置を変化させることにより、凹部を有する樹脂成形品(樹脂成形品Wの1面)であっても自動研磨することができる。この凹形状部のパートライン52が湾曲しているときは、その曲面をなぞるように研磨する。
It is a top view which shows the operation | movement state of the resin molded product of this invention of FIG. 4, (a) to (e) is the state of the grinding | polishing process by an abrasive belt, (f) to (j) is by plate-shaped abrasives. This is a state of finish polishing.
The part line 52 of the concave portion of the resin molded product W is polished while being pressed against the polishing belt 1, and then the pad 2 is retracted to retract the polishing belt 1 (see FIG. 2). By changing the position of the polishing belt 1 as described above, even a resin molded product having a recess (one surface of the resin molded product W) can be automatically polished. When the concave part line 52 is curved, it is polished to follow the curved surface.
この凹形状部のパートライン52に続けて、図4の(a)から(e)に示すように、樹脂成形品Wの周囲のパートライン52を、研磨ベルト1面を擦るように、樹脂成形品Wを略水平方向に移動させながら、この樹脂成形品Wの周囲のパートライン(成形品の2面から3面)を連続研磨する。これにより円滑なパートライン52の研磨を実施することができる。
なお、図示例では、上下方向へ回転する研磨ベルト1に対して、樹脂成形品Wを略水平方向に移動させて樹脂成形品W周囲のパートライン52を研磨する状態について説明している。これ以外に、略水平方向へ回転する研磨ベルト1に対して、樹脂成形品Wを略上下方向に移動させて樹脂成形品Wのパートライン52を研磨することも可能である。樹脂成形品Wの形状に応じてその研磨方向を可変することができる。
Subsequently to the concave part part line 52, as shown in FIGS. 4A to 4E, the part line 52 around the resin molded product W is resin-molded so that the surface of the polishing belt 1 is rubbed. While moving the product W in a substantially horizontal direction, a part line (2 to 3 surfaces of the molded product) around the resin molded product W is continuously polished. Thus, smooth polishing of the part line 52 can be performed.
In the illustrated example, the state in which the resin molded product W is moved in the substantially horizontal direction with respect to the polishing belt 1 rotating in the vertical direction and the part line 52 around the resin molded product W is polished. In addition to this, it is also possible to polish the part line 52 of the resin molded product W by moving the resin molded product W in the substantially vertical direction with respect to the polishing belt 1 rotating in a substantially horizontal direction. The polishing direction can be changed according to the shape of the resin molded product W.
研磨ベルト1は、研磨した樹脂の目詰まりにより研磨力が低下する。この研磨ベルト1の作動中に、付着した研磨滓を除去しながら樹脂成形品Wを研磨することが可能である。研磨滓を除去しないときは、樹脂成形品Wを数十個程度研磨すると新しい研磨ベルト1に交換していた。しかし、このように途中で研磨滓を除去することで数千個まで研磨することができるようになった。そこで、研磨ベルト1の消費量を下げ、作業コストの低減を図ることができる。 The polishing belt 1 is reduced in polishing power due to clogging of the polished resin. During the operation of the polishing belt 1, it is possible to polish the resin molded product W while removing the attached polishing wrinkles. When the polishing wrinkles were not removed, when several tens of the resin molded products W were polished, the new polishing belt 1 was replaced. However, it has become possible to polish up to several thousand pieces by removing the polishing wrinkles on the way. Therefore, it is possible to reduce the consumption of the polishing belt 1 and reduce the operation cost.
次に、樹脂成形品Wの凹形状部のパートライン52を、回転する板状の研磨材3に押し当てながら仕上研磨し、樹脂成形品Wの周囲のパートライン52が回転する板状の研磨材3面を擦るように、樹脂成形品Wを略水平方向に移動させながら、樹脂成形品Wの周囲のパートライン52を連続して仕上研磨する。なお、この板状の研磨材3の回転研磨に代えて振動させることも可能である。この板状の研磨材3による仕上研磨は、上述した研磨ベルト1の研磨により発生した樹脂成形品Wのエッジ部分が、樹脂めっきした際に、「膨れ」や「クラック」の原因となるので、これらを防止するために、この部分に丸みを付けることを目的とする。 Next, finish polishing is performed while pressing the concave part part line 52 of the resin molded product W against the rotating plate-shaped abrasive 3, and the plate-shaped polishing around which the part line 52 around the resin molded product W rotates. The part line 52 around the resin molded product W is continuously polished while moving the resin molded product W in a substantially horizontal direction so as to rub the surface of the material 3. The plate-like abrasive 3 can be vibrated instead of rotating. The finish polishing by the plate-like abrasive 3 causes “bulging” and “cracking” when the edge portion of the resin molded product W generated by the polishing of the polishing belt 1 is resin-plated. In order to prevent these, the purpose is to round this part.
この回転する板状の研磨材3による仕上研磨も、図4の(f)から(j)に示すように、樹脂成形品Wの周囲のパートライン52を、板状の研磨材3面を擦るように、樹脂成形品Wを略水平方向に移動させながら、樹脂成形品W周囲のパートライン(樹脂成形品の1面から2面、3面まで)を連続して研磨する。これにより円滑なパートライン52の仕上研磨を実施することができる。
なお、図示例では、板状の研磨材3についても研磨ベルト1と同様に、水平方向に配置した回転中心軸で回転する板状の研磨材3に対して、樹脂成形品Wを略水平方向に移動させて樹脂成形品Wのパートライン52を研磨する状態について説明している。これ以外に、上下方向に配置した回転中心軸で回転する板状の研磨材3に対して、樹脂成形品Wを略縦方向に移動させて樹脂成形品Wのパートライン52を研磨することも可能である。
Also in the finish polishing with the rotating plate-like abrasive 3, the surface of the plate-like abrasive 3 is rubbed against the part line 52 around the resin molded product W as shown in FIGS. In this way, while moving the resin molded product W in a substantially horizontal direction, the part lines around the resin molded product W (from the first surface to the second surface and the third surface) are continuously polished. Thereby, the finish polishing of the smooth part line 52 can be implemented.
In the illustrated example, the plate-shaped abrasive 3 also has the resin molded product W substantially in the horizontal direction with respect to the plate-shaped abrasive 3 that rotates about the rotation center axis arranged in the horizontal direction, as in the case of the polishing belt 1. A state in which the part line 52 of the resin molded product W is polished by moving to the above is described. In addition to this, it is also possible to polish the part line 52 of the resin molded product W by moving the resin molded product W in a substantially vertical direction with respect to the plate-shaped abrasive 3 rotating about the rotation center axis arranged in the vertical direction. Is possible.
このように凹凸部、角部や曲面部を有する樹脂成形品Wに形成されたパートライン52について、研磨ベルト1による連続した研磨と、回転する板状の研磨材3による連続した仕上研磨が終了したら、冶具から取り外し研磨処理が完了する。上述と同様な工程で次の樹脂成形品Wをセットする。 Thus, for the part line 52 formed on the resin molded product W having uneven portions, corner portions and curved surface portions, continuous polishing by the polishing belt 1 and continuous finish polishing by the rotating plate-shaped abrasive 3 are completed. Then, it is removed from the jig and the polishing process is completed. The next resin molded product W is set in the same process as described above.
研磨ベルト1の周速度は、常に同一周速度で回転させる必要はない。実施例2の研磨方法では、研磨ベルト1の周速度を、使用途中に可変する。新しい研磨ベルト1によれば、生産開始と終わりでは研磨力の差が大きい。それに伴い樹脂成形品Wの状態も生産開始と終わりでは異なる外観になる。この実施例2の周速度を変化させる方法は製品外観を均一に保つことを目的とする。この研磨ベルト1の周速度は樹脂成形品Wの材質、大きさ、パートラインの突出度、研磨ベルト1の種類に応じて勿論変化するものである。 The peripheral speed of the polishing belt 1 does not always need to be rotated at the same peripheral speed. In the polishing method of Example 2, the peripheral speed of the polishing belt 1 is varied during use. According to the new polishing belt 1, the difference in polishing force is large between the start and end of production. Along with this, the state of the resin molded product W also has different appearances at the start and end of production. The method of changing the peripheral speed of the second embodiment aims to keep the product appearance uniform. The peripheral speed of the polishing belt 1 naturally varies depending on the material and size of the resin molded product W, the degree of protrusion of the part line, and the type of the polishing belt 1.
同様に、新しい板状の研磨材3についても、その回転速度を使用途中で可変することにより、研磨処理の均質化を図ることができる。 Similarly, also for the new plate-like abrasive 3, the polishing speed can be made uniform by changing the rotation speed during use.
図5は実施例3の板状の研磨材を偏心回転させる状態の説明図である。
実施例3では、板状の研磨材3を偏心させて回転させながら、樹脂成形品W周囲のパートライン52を仕上研磨する。このように板状の研磨材3を偏心させて回転させると研磨面に回転方向の傷を付けないようにすることができる。
FIG. 5 is an explanatory view of a state in which the plate-like abrasive of Example 3 is eccentrically rotated.
In Example 3, the part line 52 around the resin molded product W is finish-polished while the plate-like abrasive 3 is eccentrically rotated. Thus, if the plate-like abrasive 3 is eccentric and rotated, it is possible to prevent the polishing surface from being scratched in the rotational direction.
実施例4では、板状の研磨材3を振動の振幅を可変させながら、樹脂成形品Wの周囲のパートライン52を仕上研磨する。このように板状の研磨材3をその振動の振幅を可変させる方法でも、研磨面に傷を付けないようにすることができる。 In Example 4, the part line 52 around the resin molded product W is finish-polished while changing the amplitude of vibration of the plate-like abrasive 3. Thus, even if the amplitude of the vibration of the plate-like abrasive 3 is varied, the polished surface can be prevented from being damaged.
なお、本発明は上述した発明の実施の形態に限定されず、研磨ベルト1による研磨と、回転板状の研磨材3による仕上研磨を組み合わせることで、樹脂成形品Wのパートライン52を迅速に連続して研磨することができ、かつその研磨面を平滑なものに仕上げることができる方法であれば、図示したような工程に限定されず、本発明の要旨を逸脱しない範囲で種々変更できることは勿論である。 In addition, this invention is not limited to embodiment of the invention mentioned above, By combining the grinding | polishing by the grinding | polishing belt 1 and the finishing grinding | polishing by the rotating plate-shaped abrasive | polishing material 3, the part line 52 of the resin molded product W can be made quick. The method is not limited to the steps shown in the drawings as long as it can be continuously polished and the polished surface can be smoothed, and various changes can be made without departing from the scope of the present invention. Of course.
本発明の樹脂成形品のパートライン研磨方法は、凹凸部、角部や曲面部を有する樹脂成形品について利用できるだけでなく、板状の単純な形状の樹脂成形品のパートラインの研磨に利用することができる。 The method for polishing a part line of a resin molded product according to the present invention can be used not only for a resin molded product having an uneven part, a corner part or a curved part, but also for polishing a part line of a resin molded product having a simple plate shape. be able to.
1 研磨ベルト
2 パッド
3 板状の研磨材
W 樹脂成形品
52 パートライン
1 Abrasive Belt 2 Pad 3 Plate-like Abrasive Material W Resin Molded Product 52 Part Line
Claims (10)
前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を、研磨開始と終わりで研磨力に差が生じないようにその周速度を使用途中に可変する研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 A method for polishing a part line of a resin molded product, wherein a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven part, a corner part or a curved part. ,
For the concave part of the part line (52) formed in the resin molded product (W) , the peripheral speed of the part line (52) is used so that there is no difference in polishing force between the start and end of polishing. The polishing surface of the polishing belt (1), which is variable in the middle, is brought close to and polished while pressing,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By continuously polishing the part line (52) around the resin molded product (W) while moving the product (W) in a direction substantially perpendicular to the surface of the polishing belt (1), the part line Polish (52) to be smooth,
Subsequently, the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W) are rubbed against the surface of the plate-like abrasive (3). By polishing the part line (52) around the resin molded product (W) while moving the resin molded product (W), the edge portion generated by the polishing of the polishing belt (1) is rounded. A part line polishing method for a resin molded product, characterized in that finish polishing is performed.
前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を、研磨開始と終わりで研磨力に差が生じないようにその周速度を使用途中に可変する研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 This is a part line polishing method for a resin molded product, in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having uneven portions, corner portions and curved surface portions. And
For the concave part of the part line (52) where the resin molded product (W) is formed , the peripheral speed of the part line (52) is used so that there is no difference in polishing force between the start and end of polishing. The polishing surface of the polishing belt (1), which is variable in the middle, is brought close to and polished while pressing,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By polishing the part line (52) around the resin molded product (W) continuously while moving the product (W) in a substantially horizontal direction, the part line (52) is polished smoothly. And
Subsequently, the part line (52) rubs the surface of the plate-shaped abrasive (3) with respect to the concave shape part, corner part and curved surface shape part of the part line (52) around the resin molded product (W). In addition, by continuously polishing the part line (52) around the resin molded product (W) while moving the resin molded product (W) in a substantially horizontal direction, the polishing belt (1) is polished. A part line polishing method for a resin molded product, characterized in that finish polishing is performed so that the generated edge portion is rounded.
前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその回転速度を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 A method for polishing a part line of a resin molded product, wherein a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven part, a corner part or a curved part. ,
For the concave part of the part line (52) formed in the resin molded product (W), the part line (52) is polished while being pressed against the polishing surface of the polishing belt (1),
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By continuously polishing the part line (52) around the resin molded product (W) while moving the product (W) in a direction substantially perpendicular to the surface of the polishing belt (1), the part line Polish (52) to be smooth,
Subsequently, with respect to the concave shape portion, the corner portion and the curved surface shape portion of the part line (52) around the resin molded product (W), the part line (52) has no difference in polishing force between the start and end of polishing. In this way, while moving the resin molded product (W) so as to rub the surface of the plate-like abrasive (3) whose rotational speed can be changed during use , the part line (52) around the resin molded product (W) ) Is finished and polished so as to round the edge portion generated by polishing the polishing belt (1).
前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその回転速度を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 This is a part line polishing method for a resin molded product, in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having uneven portions, corner portions and curved surface portions. And
For the concave part of the part line (52) in which the resin molded product (W) is formed, the part line (52) is polished while approaching the polishing surface of the polishing belt (1) and pressed,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By polishing the part line (52) around the resin molded product (W) continuously while moving the product (W) in a substantially horizontal direction, the part line (52) is polished smoothly. And
Subsequently, with respect to the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W), the part line (52) has a difference in polishing force between the start and end of polishing. While rotating the resin molded product (W) in a substantially horizontal direction so as to rub the surface of the plate-like abrasive (3) whose rotational speed can be changed during use, the periphery of the resin molded product (W) The part line polishing of the resin molded product is characterized in that the edge line generated by the polishing of the polishing belt (1) is finished and polished so as to be rounded by continuously polishing the part line (52) of Method.
前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその振動速度を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 A method for polishing a part line of a resin molded product, wherein a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven part, a corner part or a curved part. ,
For the concave part of the part line (52) formed in the resin molded product (W), the part line (52) is polished while being pressed against the polishing surface of the polishing belt (1),
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By continuously polishing the part line (52) around the resin molded product (W) while moving the product (W) in a direction substantially perpendicular to the surface of the polishing belt (1), the part line Polish (52) to be smooth,
Subsequently, with respect to the concave shape portion, the corner portion and the curved surface shape portion of the part line (52) around the resin molded product (W), the part line (52) has no difference in polishing force between the start and end of polishing. In this way, while moving the resin molded product (W) so as to rub the surface of the plate-like abrasive (3) whose vibration speed is changed during use , the part line around the resin molded product (W) (52 ) Is finished and polished so as to round the edge portion generated by polishing the polishing belt (1).
前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその振動速度を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 This is a part line polishing method for a resin molded product, in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having uneven portions, corner portions and curved surface portions. And
For the concave part of the part line (52) in which the resin molded product (W) is formed, the part line (52) is polished while approaching the polishing surface of the polishing belt (1) and pressed,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By polishing the part line (52) around the resin molded product (W) continuously while moving the product (W) in a substantially horizontal direction, the part line (52) is polished smoothly. And
Subsequently, with respect to the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W), the part line (52) has a difference in polishing force between the start and end of polishing. While moving the resin molded product (W) in a substantially horizontal direction so as to rub the surface of the plate-like abrasive (3) whose vibration speed can be changed during use, the periphery of the resin molded product (W) The part line polishing of the resin molded product is characterized in that the edge line generated by the polishing of the polishing belt (1) is finished and polished so as to be rounded by continuously polishing the part line (52) of Method.
前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させ、かつ該板状の研磨材(3)を偏心させて回転させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 A method for polishing a part line of a resin molded product, wherein a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven part, a corner part or a curved part. ,
For the concave part of the part line (52) formed in the resin molded product (W), the part line (52) is polished while being pressed against the polishing surface of the polishing belt (1),
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By continuously polishing the part line (52) around the resin molded product (W) while moving the product (W) in a direction substantially perpendicular to the surface of the polishing belt (1), the part line Polish (52) to be smooth,
Subsequently, the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W) are rubbed against the surface of the plate-like abrasive (3). By polishing the part line (52) around the resin molded product (W) while moving the resin molded product (W) and rotating the plate-shaped abrasive (3) eccentrically , A part line polishing method for a resin molded product, characterized in that finish polishing is performed so as to round off an edge portion generated by polishing the polishing belt (1).
前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させ、かつ該板状の研磨材(3)を偏心させて回転させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 This is a part line polishing method for a resin molded product, in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having uneven portions, corner portions and curved surface portions. And
For the concave part of the part line (52) in which the resin molded product (W) is formed, the part line (52) is polished while approaching the polishing surface of the polishing belt (1) and pressed,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By polishing the part line (52) around the resin molded product (W) continuously while moving the product (W) in a substantially horizontal direction, the part line (52) is polished smoothly. And
Subsequently, the part line (52) rubs the surface of the plate-shaped abrasive (3) with respect to the concave shape part, corner part and curved surface shape part of the part line (52) around the resin molded product (W). Further, the part line (52) around the resin molded product (W) is moved while the resin molded product (W) is moved in a substantially horizontal direction and the plate-like abrasive (3) is eccentrically rotated. A part-line polishing method for a resin molded product, characterized in that finish polishing is performed so as to round the edge portion generated by polishing of the polishing belt (1) by continuous polishing.
前記樹脂成形品(W)に形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を前記研磨ベルト(1)面に対して略直角方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)が平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその振動の振幅を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を移動させながら、該樹脂成形品(W)周囲のパートライン(52)を研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 A method for polishing a part line of a resin molded product, wherein a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having an uneven part, a corner part or a curved part. ,
For the concave part of the part line (52) formed in the resin molded product (W), the part line (52) is polished while being pressed against the polishing surface of the polishing belt (1),
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By continuously polishing the part line (52) around the resin molded product (W) while moving the product (W) in a direction substantially perpendicular to the surface of the polishing belt (1), the part line Polish (52) to be smooth,
Subsequently, with respect to the concave shape portion, the corner portion and the curved surface shape portion of the part line (52) around the resin molded product (W), the part line (52) has no difference in polishing force between the start and end of polishing. Thus, while moving the resin molded product (W) so as to rub the surface of the plate-like abrasive (3) whose amplitude of vibration is changed during use , the part line around the resin molded product (W) ( A part-line polishing method for a resin molded product, characterized in that finish polishing is performed so as to round the edge portion generated by polishing the polishing belt (1) by polishing 52).
前記樹脂成形品(W)の形成されたパートライン(52)の凹形状部については、該パートライン(52)を研磨ベルト(1)の研磨面を近づけ、押し当てながら研磨し、
前記樹脂成形品(W)に形成されたパートライン(52)の角部や曲面形状部については、該パートライン(52)が前記研磨ベルト(1)の研磨面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)の周囲のパートライン(52)を連続して研磨することにより、該パートライン(52)を平滑になるように研磨し、
引き続いて、前記樹脂成形品(W)の周囲のパートライン(52)の凹形状部、角部や曲面形状部について、該パートライン(52)が、研磨開始と終わりで研磨力に差が生じないようにその振動の振幅を使用途中に可変する板状の研磨材(3)面を擦るように、該樹脂成形品(W)を略水平方向に移動させながら、該樹脂成形品(W)周囲のパートライン(52)を連続して研磨することにより、前記研磨ベルト(1)の研磨により発生したエッジ部分に丸みを付けるように仕上研磨する、ことを特徴とする樹脂成形品のパートライン研磨方法。 This is a part line polishing method for a resin molded product, in which a part line (52) formed at the time of mold molding is polished at a joint around a resin molded product (W) having uneven portions, corner portions and curved surface portions. And
For the concave part of the part line (52) in which the resin molded product (W) is formed, the part line (52) is polished while approaching the polishing surface of the polishing belt (1) and pressed,
About the corner | angular part and curved surface shape part of the part line (52) formed in the said resin molded product (W), this resin molding is carried out so that this part line (52) may rub the grinding | polishing surface of the said polishing belt (1). By polishing the part line (52) around the resin molded product (W) continuously while moving the product (W) in a substantially horizontal direction, the part line (52) is polished smoothly. And
Subsequently, with respect to the concave part, corner part and curved surface part of the part line (52) around the resin molded product (W), the part line (52) has a difference in polishing force between the start and end of polishing. The resin molded product (W) is moved while moving the resin molded product (W) in a substantially horizontal direction so as to rub the surface of the plate-like abrasive (3) whose amplitude of vibration is changed during use. Part line of a resin molded product, characterized in that the peripheral part line (52) is continuously polished so that the edge portion generated by the polishing of the polishing belt (1) is finish-polished so as to be rounded. Polishing method.
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