JP2007021749A

JP2007021749A - Gate cutting device of molded product and gate cutting method of molded product

Info

Publication number: JP2007021749A
Application number: JP2005202793A
Authority: JP
Inventors: Hiroki Shudo; 弘樹周藤; Hiroyuki Ichihara; 裕之市原; Shingo Okui; 伸悟奥井
Original assignee: Star Seiki Co Ltd
Current assignee: Star Seiki Co Ltd
Priority date: 2005-07-12
Filing date: 2005-07-12
Publication date: 2007-02-01
Anticipated expiration: 2025-07-12
Also published as: JP4761300B2

Abstract

<P>PROBLEM TO BE SOLVED: To make the layout of a product holding member and a cutting blade efficient while holding the miniaturization of a gate cutting device itself of a resin molded product by unitizing the product holding member for holding the product part of the resin molded product and the cutting blade for cutting the gate of the resin molded product. <P>SOLUTION: A holding body having a holding recessed part having a shape almost coinciding with that of the product part, an edge tool stand supported so as to be movable in the direction approaching the holding recessed part with respect to the holding body and having a positioning part at the place coinciding with a gate part, an edge tool operating member for moving the edge tool stand and a plurality of molded product holding and cutting units, each of which is composed of the cutting blade provided to the edge tool stand so that its edge coincides with the gate part and a separating operation member for moving the holding body in the direction allowing the product part to go away from a sprue part, are provided corresponding to the respective product part of the resin molded product. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、樹脂成形品を製品部とスプル・ランナ部（以下、単にスプル部と称する。）をゲート部で切断する成形品ゲート切断装置及びゲート切断方法に関する。 The present invention relates to a molded product gate cutting apparatus and a gate cutting method for cutting a resin molded product into a product portion and a sprue / runner portion (hereinafter simply referred to as a sprue portion) at a gate portion.

本出願人は、特許文献１に示すようにランナ保持部及び製品保持部を有した成型品保持部材と、樹脂成型品をゲート部にて切断する一対の切断刃と、成型品保持部材に保持された製品部を把持して固定する製品把持部材を備えた成型品ゲート切断装置において、成型品保持部材のランナ保持部は製品保持部に対して切断刃に近づく方向及び離間する方向へ移動可能に支持されると共に弾性部材の弾性力により常には中立位置に位置するように付勢され、ゲート切断時に発生する応力を弾性部材の弾性変形により吸収する構成の成形品ゲート切断装置を提案した。 As shown in Patent Document 1, the present applicant holds a molded product holding member having a runner holding portion and a product holding portion, a pair of cutting blades for cutting a resin molded product at a gate portion, and a molded product holding member. In the molded product gate cutting device equipped with a product gripping member that grips and fixes the product part, the runner holding part of the molded product holding member can move in the direction approaching and separating from the cutting blade with respect to the product holding part And a molded product gate cutting device configured to absorb the stress generated at the time of gate cutting by elastic deformation of the elastic member while being supported by the elastic member and always biased by the elastic force of the elastic member.

この成形品ゲート切断装置は、成型品保持部材と一対の切断刃とを別々の箇所に設ける必要があるため、例えば環状や放射状のスプル部に多数の製品部を一体成形した樹脂成形品を１回の作業でゲート切断するには、製品部数に対応する個数の成形品保持部及び一対の切断刃を配置する必要がある。しかし、１台の装置に多数組の成形品保持部及び一対の切断刃を配置すること自体、事実上、困難であった。この欠点は、成形品ゲート切断装置を、成形品保持部及び一対の切断刃を製品部の個数分、配置できる大きさとすることにより解決できるが、成形品ゲート切断装置自体が著しく大型化することが避けられず、このような大型の成形品ゲート切断装置を樹脂成形装置相互間の狭小スペースに設置することは、極めて困難であった。 Since this molded product gate cutting device needs to provide a molded product holding member and a pair of cutting blades at different locations, for example, a resin molded product in which a large number of product parts are integrally molded in an annular or radial sprue part is 1 In order to perform gate cutting in a single operation, it is necessary to arrange a number of molded product holding parts and a pair of cutting blades corresponding to the number of product parts. However, it is practically difficult to arrange a large number of molded product holding portions and a pair of cutting blades in one apparatus. This drawback can be solved by making the molded product gate cutting device large enough to arrange the molded product holding part and the pair of cutting blades by the number of product parts, but the molded product gate cutting device itself is significantly enlarged. However, it is extremely difficult to install such a large molded product gate cutting device in a narrow space between resin molding devices.

また、上記した成形品ゲート切断装置は、相対する一対の切断刃により製品部をゲート切断しているが、この切断刃にあっては、ゲート切断時にゲート部の内部応力を低減して製品部を高精度切断する必要から、各切断刃を電気ヒータにより所望の温度に加熱している。しかし、上記したように一対の切断刃を加熱するための電力が増大し、成形コストが高コスト化する要因になっている。
特開２００４−５８２９３公報 In addition, the molded product gate cutting device described above performs gate cutting of the product portion with a pair of opposed cutting blades. In this cutting blade, the internal stress of the gate portion is reduced during gate cutting to reduce the product portion. Therefore, the cutting blades are heated to a desired temperature by an electric heater. However, as described above, the electric power for heating the pair of cutting blades increases, which is a factor that increases the cost of molding.
JP 2004-58293 A

解決しようとする問題点は、従来の成形品ゲート切断装置においては製品部の個数に応じた数の成形品保持部及び一対の切断刃を必要とし、成形品保持部及び一対の切断刃を事実上レイアウトできない点にある。また、製品部の個数に応じた数の成形品保持部及び一対の切断刃をレイアウトするには、装置自体が大型化する点にある。更に、従来の成形品ゲート切断装置は一対の切断刃をそれぞれ加熱しなければならず、消費電力が増大する点にある。 The problem to be solved is that the conventional molded product gate cutting device requires a number of molded product holding units and a pair of cutting blades according to the number of product units, and the molded product holding unit and the pair of cutting blades are actually used. The top layout is not possible. Further, in order to lay out the number of molded product holding portions and a pair of cutting blades according to the number of product portions, the apparatus itself is increased in size. Furthermore, the conventional molded product gate cutting apparatus has to heat a pair of cutting blades, which increases power consumption.

請求項１の成形品ゲート切断装置は、樹脂成形品の製品部とスプル部をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対して保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる複数の成形品保持切断ユニットを樹脂成形品の各製品部に対応して設けたことを特徴とする。 The molded product gate cutting device according to claim 1 is a molded product gate cutting device for cutting a product portion and a sprue portion of a resin molded product at a gate portion, and a holding body having a holding recess having a shape substantially matching the product portion; The tool body is supported so as to be movable in a direction approaching the holding recess with respect to the holding body, and has a positioning part at a position that coincides with the gate part, a tool operating member that moves the tool rest, and the tool rest, Each product of a resin molded product includes a plurality of molded product holding and cutting units, each of which includes a cutting blade provided so that the cutting edge coincides with the gate portion, and a separating operation member that moves the holding body in a direction in which the product portion moves away from the sprue portion. It is provided corresponding to the part.

請求項２の成形品ゲート切断装置は、樹脂成形品の製品部とスプル部をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対して保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる複数の成形品保持切断ユニットを樹脂成形品の各製品部に対応して設けたゲート切断機構と、ゲート切断機構における各成形品保持切断ユニットの保持凹部に対して樹脂成形品の製品部が一致するように移動可能に構成され、樹脂成形品のスプル部を把持する把持部材と、樹脂成形品の各製品部がそれぞれの保持凹部内に保持された際に位置決め部と協働してゲート部近辺をそれぞれ押圧する刃物受け部材と、ゲート切断された保持凹部内の各製品部をそれぞれ吸着して保持する吸着部材と、各吸着部材を、ゲート切断時には保持凹部内の製品部から離間する位置及びゲート切断後においては保持凹部内の製品部に近接する位置にそれぞれ移動させる移動部材とからなる樹脂成形品チャック装置とを備えたことを特徴とする。 The molded product gate cutting device according to claim 2 is a molded product gate cutting device for cutting a product portion and a sprue portion of a resin molded product at a gate portion, and a holding body having a holding recess having a shape substantially coinciding with the product portion; The tool body is supported so as to be movable in a direction approaching the holding recess with respect to the holding body, and has a positioning part at a position that coincides with the gate part, a tool operating member that moves the tool rest, and the tool rest, Each product of a resin molded product includes a plurality of molded product holding and cutting units, each of which includes a cutting blade provided so that the cutting edge coincides with the gate portion, and a separating operation member that moves the holding body in a direction in which the product portion moves away from the sprue portion. The gate cutting mechanism provided corresponding to each part, and the product part of the resin molded product can be moved so that the product part of the resin molded product matches the holding recess of each molded product holding and cutting unit in the gate cutting mechanism. A gripping member that grips the product, a blade receiving member that presses the vicinity of the gate portion in cooperation with the positioning portion when each product portion of the resin molded product is held in each holding recess, and the gate-cut holding member An adsorption member that adsorbs and holds each product portion in the recess, and a position where each adsorption member is separated from the product portion in the holding recess when the gate is cut, and close to the product portion in the holding recess after the gate is cut. And a resin molded product chuck device including moving members respectively moved to positions.

請求項３の成形品ゲート切断装置は、スプル部に偶数個の製品部を一体に設けた樹脂成形品をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対し、保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる樹脂成形品における製品部数の半分の数の成形品保持切断ユニットを樹脂成形品の製品部に対し、１個おきに設けたゲート切断機構と、ゲート切断機構における各成形品保持切断ユニットの保持凹部に対して樹脂成形品の製品部が一致するように移動可能に構成され、樹脂成形品のスプル部を把持する把持部材と、該把持部材を、樹脂成形品における製品部の相互間隔に応じた角度で回動する回動部材と、樹脂成形品の各製品部がそれぞれの保持凹部内に保持された際に位置決め部と協働してゲート部近辺をそれぞれ押圧する刃物受け部材と、ゲート切断された保持凹部内の各製品部をそれぞれ吸着して保持する吸着部材と、各吸着部材を、ゲート切断時には保持凹部内の製品部から離間する位置及びゲート切断後においては保持凹部内の製品部に近接する位置にそれぞれ移動させる移動部材とからなる樹脂成形品チャック装置とを備えたことを特徴とする。 The molded product gate cutting device according to claim 3 is a molded product gate cutting device for cutting a resin molded product, in which an even number of product parts are integrally provided in a sprue part, at the gate part, and maintaining a shape substantially matching the product part. A holding body having a recess, a tool post that is supported so as to be movable in a direction approaching the holding recess with respect to the holding body, and has a positioning part at a position that coincides with the gate part, and a tool operating member that moves the tool rest And a cutting blade provided on the tool post so that the cutting edge coincides with the gate portion, and a separation actuating member for moving the holding body in a direction in which the product portion moves away from the sprue portion. Half of the number of molded product holding / cutting units for the product portion of the resin molded product, and the gate cutting mechanism provided for every other product, and the resin cutting product holding portion of each molded product holding / cutting unit in the gate cutting mechanism Made A gripping member configured to be movable so that the portions coincide with each other and gripping the sprue portion of the resin molded product, and a rotating member that rotates the gripping member at an angle corresponding to the mutual interval of the product portions in the resin molded product And a blade receiving member that presses the vicinity of the gate portion in cooperation with the positioning portion when each product portion of the resin molded product is held in each holding recess, and each product in the holding recess that is gate-cut. The suction member that sucks and holds the respective parts, and each suction member are moved to a position that is separated from the product part in the holding recess when the gate is cut and a position that is close to the product part in the holding recess after the gate is cut. And a resin molded product chuck device including a moving member.

請求項７のゲート切断方法は、樹脂成形品の製品部を保持凹部内に保持した状態でゲート部に一致する箇所の位置決め部に沿って切断刃を移動してスプル部から製品部を切断した後に、保持体を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させることを特徴とする。 In the gate cutting method according to claim 7, the product portion of the resin molded product is held in the holding recess, and the cutting blade is moved along the positioning portion corresponding to the gate portion to cut the product portion from the sprue portion. Thereafter, the holding member is moved in a direction in which the product part moves away from the sprue part, and the product part is forcibly separated from the sprue part.

請求項８のゲート切断方法は、樹脂成形品の製品部のゲート部に刃物受け部材を位置させた状態でスプル部を保持する成形品チャック手段を、製品部がゲート切断手段の保持部材に設けられた保持凹部に位置するように移動して保持させる工程、保持凹部に保持された製品部のゲート部に対し、刃先がゲート部に一致した状態で移動する切断刃によりゲート切断する工程、保持部材を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させる工程と、成形品チャック手段の吸着部材を移動して保持凹部内に保持された製品部を吸着した後に成形品チャック手段をゲート切断手段から離間移動して取出す工程とからなることを特徴とする。 The gate cutting method according to claim 8 is provided with molded product chuck means for holding the sprue portion with the blade receiving member positioned at the gate portion of the product portion of the resin molded product, and the product portion is provided on the holding member of the gate cutting means. The process of moving and holding it so as to be positioned in the holding recess, the step of cutting the gate with the cutting blade that moves with the blade edge aligned with the gate part with respect to the gate part of the product part held in the holding recess, holding The product is moved in a direction in which the product part moves away from the sprue part to forcibly separate the product part from the sprue part, and the suction part of the molded product chuck means is moved to suck the product part held in the holding recess. And a step of moving the molded product chuck means away from the gate cutting means and taking it out.

請求項９のゲート切断方法は、ゲート切断手段の整数倍の個数の製品部を有した樹脂成形品の製品部の内、（整数−１）個おきの製品部のゲート部に刃物受け部材を位置させた状態で把持部材によりスプル部を把持する成形品チャック手段を、製品部がゲート切断手段の保持部材に設けられた保持凹部に位置するように移動して保持させる工程、保持凹部に保持された製品部のゲート部に対し、刃先がゲート部に一致した状態で切断刃を移動して製品部をゲート切断する工程、保持部材を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させる工程、成形品チャック手段の吸着部材を移動して保持凹部内に保持された製品部を吸着した後に成形品チャック手段をゲート切断手段から離間移動して取出す工程、成形品チャック手段の把持部材を回動して次位の製品部を順に刃物受け部材に一致させる工程を経た後に上記工程を上記整数回数繰返して樹脂成形品の製品部をゲート切断することを特徴とする。 The gate cutting method according to claim 9 is characterized in that the blade receiving member is provided on the gate portion of every (integer-1) product portions among the product portions of the resin molded product having product portions that is an integral multiple of the gate cutting means. The molded product chuck means for gripping the sprue portion with the gripping member in the positioned state is moved and held so that the product portion is positioned in the holding recess provided in the holding member of the gate cutting means, and held in the holding recess The step of moving the cutting blade by moving the cutting blade in a state where the blade edge matches the gate portion with respect to the gate portion of the product portion, and moving the holding member in the direction in which the product portion moves away from the sprue portion. A step of forcibly separating the product portion from the step, a step of moving the suction member of the molded product chuck means to suck the product portion held in the holding recess and then moving the molded product chuck means away from the gate cutting means and taking it out , After the step of rotating the gripping member of the shape chuck means to sequentially match the next product portion with the blade receiving member, the above steps are repeated an integer number of times to gate the product portion of the resin molded product. And

本発明は、樹脂成形品の製品部を保持する製品保持部材とゲート切断する切断刃とをユニット化し、装置自体の小型化を保ちながら製品保持部材及び切断刃のレイアウトを効率化することができる。また、ゲート切断後においては、スプル部から切断刃との位置関係を保ちながら製品部を強制的に分離することにより樹脂の糸引きを防止することができる。樹脂成形品の製品部が多数ある場合であっても、製品保持部材及び切断刃のユニット数を製品部数の半分で構成し、装置自体を低コスト化することもできる。 The present invention unitizes a product holding member that holds a product portion of a resin molded product and a cutting blade that performs gate cutting, and can improve the layout of the product holding member and the cutting blade while keeping the apparatus itself compact. . In addition, after the gate is cut, resin stringing can be prevented by forcibly separating the product portion from the sprue portion while maintaining the positional relationship with the cutting blade. Even when there are a large number of product parts of the resin molded product, the number of units of the product holding member and the cutting blade can be made half of the number of product parts, and the cost of the apparatus itself can be reduced.

本発明は、樹脂成形品の製品部を保持する保持部材と切断刃を成形品保持切断ユニットとして構成し、切断刃に対抗して切断部を押える機能を分離することを最良の形態とする。 According to the present invention, the best mode is to configure the holding member and the cutting blade for holding the product portion of the resin molded product as a molded product holding and cutting unit, and to separate the function of pressing the cutting portion against the cutting blade.

以下に実施形態を示す図に従って本発明を説明する。
図１〜図６において、成形品ゲート切断装置１の本体フレーム３は製品収容エリアＡ及びゲート切断エリアＢを有し、製品収容エリアＡ及びゲート切断エリアＢに亘る側縁には第１走行フレーム５が設けられている。該第１走行フレーム５には第１走行体７が長手方向へ往復移動可能に支持されている。また、第１走行体７には第１走行フレーム５の長手方向と直交する方向へ延出する第２走行フレーム９の基端部が固定され、該第２走行フレーム９には第２走行体１１が第２走行フレーム９の長手方向へ往復移動可能に支持されている。 The present invention will be described below with reference to the drawings showing embodiments.
1 to 6, the main body frame 3 of the molded product gate cutting device 1 has a product storage area A and a gate cutting area B, and a first traveling frame on a side edge extending over the product storage area A and the gate cutting area B. 5 is provided. A first traveling body 7 is supported on the first traveling frame 5 so as to be capable of reciprocating in the longitudinal direction. Further, a base end portion of a second traveling frame 9 extending in a direction perpendicular to the longitudinal direction of the first traveling frame 5 is fixed to the first traveling body 7, and the second traveling frame 9 is fixed to the second traveling body 9. 11 is supported so as to be capable of reciprocating in the longitudinal direction of the second traveling frame 9.

これら第１及び第２走行体７、１１は第１及び第２走行フレーム５、９内に軸支され、数値制御可能なサーボモータ等の電動モータ１３、１５に連結されて第１及び第２走行体７、１１に噛合う送りねじ（図示せず）の回転に伴ってそれぞれの方向へ移動される。第１及び第２走行体７、１１を移動する駆動機構としては、第１及び第２走行フレーム５、９内に張設されたタイミングベルトの一部を第１及び第２走行体７、１１に固定し、電動モータ１３、１５の駆動に伴って走行するタイミングベルトにより第１及び第２走行体７、１１を往復移動させるベルト駆動機構等のように従来公知の往復駆動機構であってもよい。 The first and second traveling bodies 7 and 11 are pivotally supported in the first and second traveling frames 5 and 9 and are connected to electric motors 13 and 15 such as servo motors that can be numerically controlled. As the feed screw (not shown) that meshes with the traveling bodies 7 and 11 is rotated, it is moved in the respective directions. As a drive mechanism for moving the first and second traveling bodies 7, 11, a part of the timing belt stretched in the first and second traveling frames 5, 9 is used as the first and second traveling bodies 7, 11. Or a conventionally known reciprocating drive mechanism such as a belt driving mechanism that reciprocally moves the first and second traveling bodies 7 and 11 by a timing belt that travels as the electric motors 13 and 15 are driven. Good.

上記第２走行体１１には起立フレーム１７が設けられ、該起立フレーム１７に対して上下方向へ延出して設けられたレール１９には昇降体２１が所要のストロークで上下方向へ往復移動可能に支持されている。該昇降体２１は上記した第１及び第２走行体７、１１の往復駆動機構と同様の送りねじ駆動機構やベルト駆動機構等からなり、起立フレーム１７に固定された数値制御可能なサーボモータ等の電動モータ２３の駆動に伴って上下方向へ移動される。 The second traveling body 11 is provided with a standing frame 17, and a lifting body 21 can be reciprocated in a vertical direction with a required stroke on a rail 19 that extends in the vertical direction with respect to the standing frame 17. It is supported. The elevating body 21 includes a feed screw driving mechanism, a belt driving mechanism, and the like similar to the reciprocating driving mechanisms of the first and second traveling bodies 7 and 11, and a numerically controllable servo motor fixed to the standing frame 17 or the like. As the electric motor 23 is driven, it is moved in the vertical direction.

昇降体２１にはチャック装置２５が取付けられている。即ち、チャック装置２５の取付けフレーム２７には上下方向に軸線を有し、把持部材の一部を構成する把持作動部材２９が回動可能に軸支され、該把持作動部材２９の下部には取付けフレーム２７の開口部２７ａを挿通して突出し、把持部材の一部を構成する把持爪２９ａが設けられている。該把持作動部材２９は、例えばエアーシリンダ等により構成され、エアーシリンダの作動に伴って移動するロッドにより把持爪２９ａを開閉動作させる。また、把持作動部材２９の基端部には取付けフレーム２７に固定されたエアーアクチエータ等の回動部材３１が連結され、該回動部材３１の作動に伴って把持作動部材２９を、所要の角度、本例においては４５度で往復回動させる。この回動角度は樹脂成形品３３における製品部３３ａの個数と後述するように同時にゲート切断可能な個数に応じて適宜設定される。本例の樹脂成形品３３は、等角度で放射方向に延出する８本のスプル部３３ｂの先端部に製品部３３ａがそれぞれ一体に成形されているものとする。 A chuck device 25 is attached to the elevating body 21. That is, the mounting frame 27 of the chuck device 25 has an axial line in the vertical direction, and a gripping operation member 29 that constitutes a part of the gripping member is pivotally supported. A gripping claw 29a that protrudes through the opening 27a of the frame 27 and constitutes a part of the gripping member is provided. The gripping operation member 29 is composed of, for example, an air cylinder or the like, and opens and closes the gripping claws 29a by a rod that moves in accordance with the operation of the air cylinder. Further, a rotation member 31 such as an air actuator fixed to the attachment frame 27 is connected to the base end portion of the grip operation member 29, and the grip operation member 29 is attached to the required operation member according to the operation of the rotation member 31. The reciprocating rotation is performed at an angle of 45 degrees in this example. This rotation angle is appropriately set according to the number of product parts 33a in the resin molded product 33 and the number of gates that can be simultaneously cut as described later. In the resin molded product 33 of this example, it is assumed that the product portions 33a are integrally formed at the tip portions of the eight sprue portions 33b extending in the radial direction at equal angles.

取付けフレーム２７の下面には、例えば４個の刃物受け部材３５が開口部２７ａの周囲にて等角度、本例にあっては９０度をおいて下方へ所要の長さで突出するように取付けられている。また、取付けフレーム２７の下部には上下方向に延出する４個の上下フレーム３７が、各刃物受け部材３５の外周側にて所要の間隔をおいてそれぞれ固定され、各上下フレーム３７には直線ガイド部材３８が固定されている。 On the lower surface of the mounting frame 27, for example, four blade receiving members 35 are mounted so as to protrude downward with a required length at an equal angle around the opening 27a and 90 degrees in this example. It has been. In addition, four upper and lower frames 37 extending in the vertical direction are fixed to the lower portion of the attachment frame 27 at a predetermined interval on the outer peripheral side of each blade receiving member 35. A guide member 38 is fixed.

そして各直線ガイド部材３８には上下移動体３９が上下方向へ移動可能にそれぞれ支持され、各上下移動体３９は上下フレーム３７に取付けられたエアーシリンダ等の上下作動部材４１により所要のストロークで上下方向へ移動される。また、各上下移動体３９の下部には吸着部材４３が、対応する刃物受け部材３５の外周側に位置するように取付けられている。上記した各刃物受け部材３５は樹脂成形品３３における製品部３３ａとスプル部３３ｂの境界であるゲート部３３ｃの近傍箇所に、また吸着部材４３は樹脂成形品３３における製品部３３ａにそれぞれ位置するように設けられる。 A vertical moving body 39 is supported on each linear guide member 38 so as to be movable in the vertical direction. Each vertical moving body 39 is moved up and down at a required stroke by a vertical operation member 41 such as an air cylinder attached to an upper and lower frame 37. Moved in the direction. Further, an adsorption member 43 is attached to the lower part of each vertical moving body 39 so as to be positioned on the outer peripheral side of the corresponding blade receiving member 35. Each of the blade receiving members 35 described above is positioned in the vicinity of the gate portion 33c which is the boundary between the product portion 33a and the sprue portion 33b in the resin molded product 33, and the suction member 43 is positioned in the product portion 33a in the resin molded product 33. Provided.

本体フレーム３のゲート切断エリアＢには、例えば正方形状の開口部４５が形成され、該開口部４５の各辺に応じた本体フレーム３には４個の成形品保持切断ユニット４７が同心の４分割位置にて互いに向い合った状態で位置調整可能に固定されている。開口部４５下方の本体フレーム３には取付け板４９が所要の間隔をおいて固定され、該取付け板４９には刃物作動部材の一部を構成するエアーシリンダ等の押上げ作動部材５１が固定されている。そして押上げ作動部材５１の作動軸には刃物作動部材の一部を構成する押上げ板５３が、後述する各成形品保持切断ユニット４７の刃物台７１下部に当接して押上げ可能に固定され、押上げ作動部材５１の作動に伴って押上げ板５３を所要のストロークで上下方向へ移動させる。 For example, a square opening 45 is formed in the gate cutting area B of the main body frame 3, and four molded product holding and cutting units 47 are concentric on the main body frame 3 corresponding to each side of the opening 45. It is fixed so that the position can be adjusted while facing each other at the division position. A mounting plate 49 is fixed to the main body frame 3 below the opening 45 at a predetermined interval, and a push-up operation member 51 such as an air cylinder constituting a part of the blade operation member is fixed to the mounting plate 49. ing. A push-up plate 53 constituting a part of the blade working member is abutted with a lower part of a tool post 71 of each molded product holding / cutting unit 47 described later on the working shaft of the push-up working member 51 and is fixed so as to be pushed up. In accordance with the operation of the push-up operation member 51, the push-up plate 53 is moved in the vertical direction with a required stroke.

尚、押上げ板５３には緩衝部材５５が取付けられ、押上げ作動部材５１の作動に伴って押上げ板５３が上方へ移動する際に、その作動軸を本体フレーム３に押当てて運動エネルギーを吸収することにより押上げ板５３を微速移動させる。また、４個の成形品保持切断ユニット４７の中心箇所（本例において、「中心」とは、４個の成形品保持切断ユニット４７を同心円状に配置した際に想定される円弧の中心を言う。）に位置する押上げ板５３にはスプル保持部材５７（図８に示す）が取付けられ、樹脂成形品３３をゲート切断する際に樹脂成形品３３のスプル部３３ｂを挿嵌して保持させる。 A buffer member 55 is attached to the push-up plate 53. When the push-up plate 53 moves upward in accordance with the operation of the push-up operation member 51, the operating shaft is pressed against the main body frame 3 so that the kinetic energy is increased. Is absorbed at a low speed. Further, the central portion of the four molded product holding / cutting units 47 (in this example, “center” means the center of an arc assumed when the four molded product holding / cutting units 47 are arranged concentrically. .) Is attached to the push-up plate 53, and the sprue portion 33b of the resin molded product 33 is inserted and held when the resin molded product 33 is gate-cut. .

上記した各成形品保持切断ユニット４７の固定台５９には直線ガイド部材６１が固着され、該直線ガイド部材６１には側面がＬ字形の可動台６３が移動可能に支持されている。該可動台６３は本体が可動台６３に固定されると共に作動軸６５ａが固定台５９の固定板５９ａに固定されたエアーシリンダ等の分離作動部材６５が取付けられ、該分離作動部材６５の作動に伴って可動台６３を放射方向へ往復移動させる。 A linear guide member 61 is fixed to the fixed base 59 of each molded product holding and cutting unit 47 described above, and a movable base 63 having an L-shaped side surface is movably supported by the linear guide member 61. The movable base 63 has a main body fixed to the movable base 63 and a separation operating member 65 such as an air cylinder having an operating shaft 65 a fixed to a fixed plate 59 a of the fixed base 59 is attached. Accordingly, the movable table 63 is reciprocated in the radial direction.

可動台６３の起立部６３ａ上部には製品部３３ａの一部形状に一致し、スプル部３３ｂ側の一部が切欠かれた形状の保持凹部６７ａが形成された製品保持部材６７が固定されている。また、起立部６３ａの中心側面（本例の中心側面とは、４個の成形品保持切断ユニット４７を同心円状に配置した際に想定される円弧の中心側の面をいう。）には直線ガイド部材６９が固定され、該直線ガイド部材６９には刃物台７１が上下方向へ移動可能に支持されている。該刃物台７１の上部には製品保持部材６７の両側面に沿って上方へ突出する左右一対の位置決め部７１ａが、その中心側面を樹脂成形品３３のゲート部３３ｃに一致させて設けられている。 A product holding member 67 is fixed to the upper part of the upright portion 63a of the movable base 63. The product holding member 67 is formed with a holding recess 67a having a shape that is partially cut out on the sprue 33b side. . Further, the central side surface of the standing portion 63a (the central side surface in this example refers to a surface on the center side of an arc assumed when the four molded product holding and cutting units 47 are concentrically arranged). A guide member 69 is fixed, and a tool post 71 is supported on the linear guide member 69 so as to be movable in the vertical direction. A pair of left and right positioning portions 71 a projecting upward along both side surfaces of the product holding member 67 are provided on the upper portion of the tool rest 71 so that the center side surface thereof coincides with the gate portion 33 c of the resin molded product 33. .

刃物台７１の中心側面には切断刃７３が、その刃先を位置決め部７１ａの底部から上方へ若干突出した状態で固定されている。該切断刃７３は内蔵された電気ヒータ等の加熱部材（図示せず）により所要の温度に加熱され、樹脂成形品３３の製品部３３ａとスプル部３３ｂをゲート切断する際に、ゲート部３３ｃを加熱切断してゲート部３３ｃにおける内部応力を分散させることによりその切断面を平滑化させる。 A cutting blade 73 is fixed to the central side surface of the tool rest 71 with its cutting edge slightly protruding upward from the bottom of the positioning portion 71a. The cutting blade 73 is heated to a required temperature by a built-in heating member (not shown) such as an electric heater, and when the product portion 33a and the sprue portion 33b of the resin molded product 33 are gate-cut, the gate portion 33c is The cut surface is smoothed by heat cutting to disperse the internal stress in the gate portion 33c.

各刃物台７１の下部には作動駒７５の軸部７５ａが長溝７１ｂに沿って上下方向へ移動可能に支持され、該作動駒７５は長溝７１ｂと軸部７５ａとの間に取付けられた圧縮ばね等の弾性部材７７により、常に下方へ付勢されている。 A shaft portion 75a of an operating piece 75 is supported at the lower part of each tool post 71 so as to be movable in the vertical direction along the long groove 71b. The operating piece 75 is a compression spring attached between the long groove 71b and the shaft portion 75a. The elastic member 77 is always urged downward.

尚、４個の成形品保持切断ユニット４７の一方側に位置する本体フレーム３にはチャック装置２５に対して樹脂成形品３３を供給する成形品供給装置（図示せず）が、また４個の成形品保持切断ユニット４７の他方側に位置する本体フレーム３には製品部３３ａが切断されたスプル部３３ｂを装置外に排出するための排出シュータ７８に接続された排出開口部７９が形成されている。更に、製品収容エリアＡの本体フレーム３にはゲート切断された製品部３３ａを個々に収容する多数の区画を有した複数個、本例においては８個の収容パレット８１がセットされる。 The main body frame 3 positioned on one side of the four molded product holding / cutting units 47 is provided with a molded product supply device (not shown) for supplying the resin molded product 33 to the chuck device 25, and four more. The main body frame 3 located on the other side of the molded product holding and cutting unit 47 is formed with a discharge opening 79 connected to a discharge shooter 78 for discharging the sprue 33b from which the product portion 33a has been cut out of the apparatus. Yes. Further, a plurality of, in this example, eight storage pallets 81 having a plurality of sections for individually storing the gate-cut product portions 33a are set in the main body frame 3 of the product storage area A.

次に、樹脂成形品３３のゲート切断作用及び方法を説明する。
先ず、電動モータ１３、１５及び必要に応じて電動モータ２３を駆動制御して第１及び第２走行体７、１１及び昇降体２１をそれぞれ移動してチャック装置２５をゲート切断エリアＢにおける成形品供給装置側に移動させた後に、把持作動部材２９の作動により閉動作する把持爪２９ａにスプル部３３ｂを把持して樹脂成形品３３を受け取る。このとき、把持爪２９ａに把持された樹脂成形品３３は、１個おきの製品部３３ａのゲート部３３ｃが各刃物受け部材３５の下側に位置した状態になっている。（図７参照） Next, the gate cutting action and method of the resin molded product 33 will be described.
First, the electric motors 13 and 15 and, if necessary, the electric motor 23 are driven and controlled to move the first and second traveling bodies 7 and 11 and the elevating body 21 to move the chuck device 25 in the gate cutting area B. After moving to the supply device side, the sprue portion 33b is gripped by the gripping claws 29a that are closed by the operation of the gripping operation member 29, and the resin molded product 33 is received. At this time, the resin molded product 33 gripped by the gripping claws 29a is in a state in which the gate portions 33c of every other product portion 33a are positioned below the blade receiving members 35. (See Figure 7)

次に、上記と同様に電動モータ１３、１５及び必要に応じて電動モータ２３をそれぞれ駆動制御してチャック装置２５を、樹脂成形品３３の１個おきの製品部３３ａが、各成形品保持切断ユニット４７における製品保持部材６７の保持凹部６７ａ上方に位置するように移動させた後に、電動モータ２３を駆動制御して昇降体２１を下方へ移動して樹脂成形品３３の１個おきの製品部３３ａを保持凹部６７ａにそれぞれ係合して保持させる。 Next, similarly to the above, the electric motors 13 and 15 and, if necessary, the electric motor 23 are driven and controlled so that the chuck device 25 and every other product portion 33a of the resin molded product 33 are held and cut by each molded product. After the product 47 is moved so as to be positioned above the holding recess 67a of the product holding member 67 in the unit 47, the electric motor 23 is driven and controlled to move the lifting body 21 downward and every other product portion of the resin molded product 33. 33a is engaged and held in the holding recesses 67a.

このとき、ゲート部３３ｃの上面側に位置する各刃物受け部材３５は、位置決め部７１ａの中心側面で、ゲート部３３ｃ上に位置して保持凹部６７ａ内に保持された製品部３３ａを固定させる。また、把持爪２９ａにより把持されたスプル部３３ｂの反対側はスプル保持部材５７内に挿嵌して保持される。（図８参照） At this time, each blade receiving member 35 located on the upper surface side of the gate portion 33c fixes the product portion 33a located on the gate portion 33c and held in the holding recess 67a on the central side surface of the positioning portion 71a. The opposite side of the sprue portion 33b gripped by the gripping claws 29a is inserted and held in the sprue holding member 57. (See Figure 8)

次に、押上げ作動部材５１を作動して押上げ板５３を上方へ移動し、この上面に当接する刃物台７１を上方へ押上げて切断刃７３の刃先をゲート部３３ｃに作用させることによりスプル部３３ｂから製品部３３ａをゲート切断させる。このとき、刃物台７１は上方へ移動する押上げ板５３に当接する作動駒７５により弾性部材７７が弾性変形し、その弾性力が所定以上になった際に、上方に押上げられて切断刃７３をゲート部３３ｃに作用させるため、各ゲート部３３ｃに対して各切断刃７３をほぼ均一に作用させることができる。また、刃物台７１が上方へ押上げられる際に、緩衝部材５５により押上げ力を緩衝して微速移動させてゲート部３３ｃに対して切断刃７３が急激に作用するのを回避している。更に、切断刃７３自体、加熱部材により加熱されてゲート部３３ｃを加熱しながら切断するため、ゲート部３３ｃにおける内部応力を吸収して切断面を高い精度の平滑状態でゲート切断させる。 Next, the push-up operation member 51 is operated to move the push-up plate 53 upward, and the tool post 71 in contact with the upper surface is pushed upward to cause the cutting edge of the cutting blade 73 to act on the gate portion 33c. The product part 33a is gate-cut from the sprue part 33b. At this time, the tool post 71 is pushed upward when the elastic member 77 is elastically deformed by the operating piece 75 that contacts the push-up plate 53 that moves upward, and the elastic force exceeds a predetermined value. Since 73 acts on the gate part 33c, each cutting blade 73 can be made to act on each gate part 33c substantially uniformly. Further, when the tool rest 71 is pushed upward, the pushing force is buffered by the buffer member 55 and moved at a slow speed to avoid the cutting blade 73 from acting rapidly on the gate portion 33c. Further, since the cutting blade 73 itself is heated by the heating member and cuts while heating the gate portion 33c, the internal stress in the gate portion 33c is absorbed and the cut surface is gate-cut in a highly accurate smooth state.

そして上方へ移動する切断刃７３によるゲート切断が完了したタイミング又はゲート切断が完了する若干早いタイミングで分離作動部材６５を作動して可動台６３を放射方向へ移動し、ゲート切断されて保持凹部６７ａ内に保持された製品部３３ａを放射方向へ引張ってスプル部３３ｂから強制的に分離させる。このとき、少なくとも製品部３３ａは切断刃７３により加熱されて軟化或いは溶融しているため、そのままの状態で切断刃７３を戻すと溶融した樹脂の糸引きが発生する恐れがあるが、上記したようにスプル部３３ｂから製品部３３ａを強制的に分離させることにより糸引きが発生するのを防止している。 The separation operating member 65 is actuated to move the movable base 63 in the radial direction at the timing when the gate cutting by the cutting blade 73 moving upward is completed or at a slightly early timing when the gate cutting is completed, and the gate is cut and the holding recess 67a is cut. The product portion 33a held inside is forcibly separated from the sprue portion 33b by pulling in the radial direction. At this time, since at least the product portion 33a is heated or softened or melted by the cutting blade 73, if the cutting blade 73 is returned as it is, there is a risk that stringing of the molten resin may occur. Forcibly separating the product portion 33a from the sprue portion 33b prevents stringing from occurring.

これにより１度の作業により樹脂成形品３３における１個おきの４個の製品部３３ａをゲート切断させる。（図９及び図１０参照） Thus, every other four product parts 33a in the resin molded product 33 are gate-cut by one operation. (See FIGS. 9 and 10)

次に、各可動台６３が放射方向に移動した状態で各押上げ作動部材５１を復動して各切断刃７３をそれぞれ原位置に戻した後に、電動モータ２３を駆動制御して昇降体２１を若干、上方へ移動させた状態で、各上下作動部材４１を作動して吸着部材４３をそれぞれ下方へ移動して保持凹部６７ａ内に保持されたゲート切断後の製品部３３ａに近接させることにより吸着保持させた後に、各上下作動部材４１を復動して保持凹部６７ａから製品部３３ａを取出す。（図１１参照） Next, after each movable stand 63 is moved in the radial direction, each push-up operation member 51 is moved back to return each cutting blade 73 to its original position, and then the electric motor 23 is driven and controlled to raise and lower the lifting body 21. Are moved upward and the respective vertical operation members 41 are operated to move the suction members 43 downward to bring them close to the product part 33a after cutting the gate held in the holding recess 67a. After sucking and holding, each vertical operation member 41 is moved backward to take out the product portion 33a from the holding recess 67a. (See Figure 11)

次に、上記状態にて各分離作動部材６５を復動してそれぞれの可動台６３を中心側へ移動させた後に、必要により電動モータ２３を駆動して昇降体２１を更に上方へ移動させると共に電動モータ１３、１５を駆動制御して各吸着部材４３により４個の製品部３３ａを吸着保持したチャック装置２５を、例えば製品部３３ａを吸着保持した１番目の吸着部材４３が製品収容エリアＡにセットされた１番目の収容パレット８１における所定の区画に位置するように移動した後に、１番目の吸着部材４３に対応する上下作動部材４１を作動して吸着部材４３を下方へ移動して製品部３３ａを上記区画内に位置させた後に吸着部材４３による吸着保持を解除して収容させた後に該上下作動部材４１を復動して吸着部材４３を原位置に戻す。 Next, in the above-described state, each separation actuating member 65 is moved backward to move each movable base 63 to the center side, and then the electric motor 23 is driven to move the elevating body 21 further upward if necessary. The chuck device 25 that sucks and holds the four product parts 33a by the suction members 43 by driving and controlling the electric motors 13 and 15, for example, the first suction member 43 that sucks and holds the product part 33a is in the product storage area A. After moving so as to be positioned in a predetermined section in the set first storage pallet 81, the vertical operation member 41 corresponding to the first suction member 43 is operated to move the suction member 43 downward to move the product portion. After the 33a is positioned in the compartment, the suction holding by the suction member 43 is released and accommodated, and then the vertical operation member 41 is moved back to return the suction member 43 to the original position.

同様にして電動モータ１３、１５をそれぞれ駆動制御して２番目の吸着部材４３を２番目の収容パレット８１における所要の区画に、３番目の吸着部材４３を３番目の収容パレット８１における所要の区画に、４番目の吸着部材４３を４番目の収容パレット８１における所要の区画にそれぞれ順に位置させた状態でそれぞれの上下作動部材４１を順に作動して対応する吸着部材４３に吸着保持された製品部３３ａをそれぞれの区画内に収容させる。 Similarly, the electric motors 13 and 15 are respectively driven and controlled so that the second suction member 43 is a required section in the second storage pallet 81 and the third suction member 43 is a required section in the third storage pallet 81. In addition, in a state in which the fourth suction member 43 is sequentially positioned in the required section of the fourth storage pallet 81, the respective vertical operation members 41 are sequentially operated, and the product portions sucked and held by the corresponding suction member 43 33a is accommodated in each compartment.

次に、電動モータ１３、１５を駆動制御してチャック装置２５をゲート切断エリアＢにおける各成形品保持切断ユニット４７の上方へ戻す途中、または戻した後に、回動部材３１を作動して把持作動部材２９を所要の角度、本例においては４５度、回動させることにより樹脂成形品３３においてゲート切断されていない残りの４個の製品部３３ａを、対応する各成形品保持切断ユニット４７における製品保持部材６７の保持凹部６７ａに一致させる。このとき、樹脂成形品３３における残りの製品部３３ａのゲート部３３ｃの上方には、対応する刃物受け部材３５がそれぞれ位置している。（図１２参照） Next, during or after returning the chuck device 25 to the upper side of each molded product holding / cutting unit 47 in the gate cutting area B by drivingly controlling the electric motors 13 and 15, the rotating member 31 is operated to perform gripping operation. By rotating the member 29 at a required angle, 45 degrees in this example, the remaining four product parts 33a that are not gate-cut in the resin molded product 33 are replaced with products in the corresponding molded product holding and cutting units 47. It is made to correspond with the holding | maintenance recessed part 67a of the holding member 67. FIG. At this time, the corresponding blade receiving member 35 is located above the gate part 33c of the remaining product part 33a in the resin molded product 33, respectively. (See Figure 12)

次に、上記と同様に電動モータ２３を駆動制御して樹脂成形品３３においてゲート切断されていない残りの各製品部３３ａを保持凹部６７ａ内に位置するように移動してそれぞれの刃物受け部材３５とにより製品部３３ａを固定させた後に、押上げ作動部材５１を作動して上方へ移動する切断刃７３により各製品部３３ａのゲート部３３ｃをゲート切断した後に、分離作動部材６５を作動して保持凹部６７ａ内に保持された製品部３３ａを放射方向へ移動してスプル部３３ｂから強制的に分離させる。 Next, the electric motor 23 is driven and controlled in the same manner as described above, and the remaining product parts 33a that are not gate-cut in the resin molded product 33 are moved so as to be positioned in the holding recesses 67a. After fixing the product portion 33a by the above, after the gate portion 33c of each product portion 33a is gate-cut by the cutting blade 73 that operates the push-up operation member 51 and moves upward, the separation operation member 65 is operated. The product portion 33a held in the holding recess 67a is moved in the radial direction and is forcibly separated from the sprue portion 33b.

これにより２回の作業により樹脂成形品３３におけるすべての製品部３３ａをゲート切断する。 Thereby, all the product parts 33a in the resin molded product 33 are gate-cut by two operations.

尚、ゲート切断されて各吸着部材４３にそれぞれ吸着保持された残りの４個の製品部３３ａは、上記と同様に電動モータ１３、１５を駆動制御してチャック装置２５を、例えば１番目の吸着部材４３が５番目の収容パレット８１における所定の区画に、２番目の吸着部材４３が６番目の収容パレット８１における所要の区画に、３番目の吸着部材４３が７番目の収容パレット８１における所要の区画に、４番目の吸着部材４３が８番目の収容パレット８１における所要の区画へそれぞれ順に位置するように移動制御にした状態で各吸着部材４３による吸着保持を解除してそれぞれの区画内に順に収容させる。 The remaining four product parts 33a that are gate-cut and sucked and held on the respective suction members 43 are driven and controlled by the electric motors 13 and 15 in the same manner as described above to control the chuck device 25, for example, the first suction part. The member 43 is a predetermined section of the fifth storage pallet 81, the second suction member 43 is a predetermined section of the sixth storage pallet 81, and the third suction member 43 is a predetermined section of the seventh storage pallet 81. With the movement controlled so that the fourth suction member 43 is sequentially positioned to the required section in the eighth storage pallet 81 in the section, the suction holding by each suction member 43 is released, and the section is sequentially placed in each section. Contain.

また、各収容パレット８１の各区画に対する製品部３３ａの収容後においては、製品部３３ａが切離されたスプル部３３ｂは、電動モータ１３、１５及び必要に応じて電動モータ２３をそれぞれ駆動制御してチャック装置２５を排出開口部７９の上方へ移動し、該位置にて把持爪２９ａによるスプル部３３ｂの把持を解除することにより排出開口部７９内に投入して成形品ゲート切断装置１外へ排出させる。その後、電動モータ１３、１５及び必要に応じて電動モータ２３をそれぞれ駆動制御してチャック装置２５を成形品供給装置側へ移動して次の樹脂成形品３３を把持爪２９ａに把持させた後に、上記と同様にしてゲート切断させる。 In addition, after the product portion 33a is accommodated in each compartment of each accommodation pallet 81, the sprue portion 33b from which the product portion 33a is separated controls the drive of the electric motors 13 and 15 and the electric motor 23 as necessary. Then, the chuck device 25 is moved above the discharge opening 79, and the gripping claw 29 a is released from the gripping claw 29 a at that position to release the molded product gate cutting device 1. Let it drain. Then, after driving and controlling the electric motors 13 and 15 and the electric motor 23 as necessary, the chuck device 25 is moved to the molded product supply device side and the next resin molded product 33 is gripped by the gripping claws 29a. The gate is cut in the same manner as described above.

本実施例は、樹脂成形品３３の製品部３３ａを保持する保持手段とゲート切断する切断刃７３を成形品保持切断ユニット４７としてユニット化することにより成形品ゲート切断装置１自体の小型化を保ちながらレイアウトを効率化して各種形状の樹脂成形品３３に対応することができる。 In the present embodiment, the holding means for holding the product portion 33a of the resin molded product 33 and the cutting blade 73 for cutting the gate are unitized as a molded product holding / cutting unit 47 so that the molded product gate cutting device 1 itself can be kept compact. However, the layout can be improved and the resin molded product 33 having various shapes can be handled.

また、ゲート切断後においてはスプル部３３ｂから製品部３３ａを強制的に分離させることにより溶融した樹脂の糸引き発生を防止し、製品部３３ａを高品質にゲート切断することができる。 Further, after the gate is cut, the product portion 33a is forcibly separated from the sprue portion 33b to prevent the molten resin from being stringed, and the product portion 33a can be gate cut with high quality.

更に、多数の製品部３３ａを有した樹脂成形品３３にあっては、少なくとも製品部３３ａの数の半分の台数の成形品保持切断ユニット４７により製品部３３ａをゲート切断することができ、装置自体を小型化及び低コスト化することができる。 Further, in the resin molded product 33 having a large number of product parts 33a, the product part 33a can be gate-cut by the molded product holding / cutting units 47, which is at least half the number of the product parts 33a. Can be reduced in size and cost.

また更に、各成形品保持切断ユニット４７においては１個の切断刃７３によりゲート切断するため、該切断刃７３を加熱する際の消費電力を低減することができる。 Furthermore, in each molded product holding / cutting unit 47, since the gate is cut by one cutting blade 73, power consumption when the cutting blade 73 is heated can be reduced.

本発明は、以下のように変更実施することができる。
１．上記説明は、押上げ板５３を上方へ移動して各成形品保持切断ユニット４７の刃物台７１を同時に押上げて切断刃７３によりゲート部３３ｃを切断する構成及び方法としたが、各成形品保持切断ユニット４７の可動台６３に設けられたエアーシリンダ等の作動部材（図示せず）によりそれぞれの刃物台７１を個々に、又は同期して押上げてゲート部３３ｃをゲート切断する構成および方法であってもよい。 The present invention can be modified as follows.
1. Although the above description has been made of the configuration and method of moving the push-up plate 53 upward to simultaneously push up the tool post 71 of each molded product holding and cutting unit 47 and cutting the gate portion 33c with the cutting blade 73, each molded product. Configuration and method for gate-cutting the gate portion 33c by pushing up the respective tool rests 71 individually or synchronously by an operating member (not shown) such as an air cylinder provided on the movable base 63 of the holding and cutting unit 47 It may be.

２．上記説明の樹脂成形品３３は、放射方向へ延出する８本のスプル部３３ｂの先端に製品部３３ａをそれぞれ一体形成したものとしたが、スプル部としては、環状で、その外周側に偶数個、望ましくは４個以上の製品部を等間隔に一体形成したものであってもよい。 2. In the resin molded product 33 described above, the product portions 33a are integrally formed at the tips of the eight sprue portions 33b extending in the radial direction. However, the sprue portion is annular and has an even number on the outer peripheral side. Individual, preferably four or more product parts may be integrally formed at equal intervals.

３．上記説明は、樹脂成形品に設けられた８個の製品部を２回の作業によりゲート切断するため、４個の成形品保持切断ユニット４７をレイアウトした構成としたが、樹脂成形品における製品部の個数に応じた数の成形品保持切断ユニットをレイアウトして１回の作業によりゲート切断してもよい。また、２回の作業によりゲート切断を行う際には、樹脂成形品の製品部の個数を、少なくとも４個以上の偶数個にすればよい。 3. In the above description, since the eight product parts provided in the resin molded product are gate-cut by two operations, the four molded product holding / cutting units 47 are laid out. The number of molded product holding / cutting units corresponding to the number of pieces may be laid out and gates may be cut by one operation. Further, when performing gate cutting by two operations, the number of product parts of the resin molded product may be at least an even number of four or more.

４．成形品保持切断ユニット４７の設置台数を奇数個とする場合にあっては、該成形品保持切断ユニット４７の整数倍の製品部を有した樹脂成形品を、該整数回数の作業でゲート切断することができる。 4). When the number of the molded product holding / cutting units 47 is an odd number, the resin molded product having a product portion that is an integral multiple of the molded product holding / cutting unit 47 is gate-cut by the integer number of operations. be able to.

樹脂成形品ゲート切断装置の概略を示す全体斜視図である。It is a whole perspective view which shows the outline of the resin molded product gate cutting device. チャック装置を拡大して示す斜視図である。It is a perspective view which expands and shows a chuck device. チャック装置の略体中央断面図である。It is an approximate body center sectional view of a chuck device. 成形品保持切断機構を拡大して示す斜視図である。It is a perspective view which expands and shows a molded article holding | maintenance cutting mechanism. 成形品保持切断機構の側面図である。It is a side view of a molded article holding and cutting mechanism. 保持切断ユニットの略体中央断面図である。It is an approximate body center sectional view of a holding cutting unit. 成形品保持切断機構に対する樹脂成形品の供給状態を示す平面図である。It is a top view which shows the supply state of the resin molded product with respect to a molded product holding | maintenance cutting mechanism. 製品部の保持状態を示す部分断面図である。It is a fragmentary sectional view which shows the holding state of a product part. 刃物台の押上げ及びゲート切断状態を示す説明図である。It is explanatory drawing which shows the raising of a tool post, and a gate cutting state. 製品部の強制分離状態を示す説明図である。It is explanatory drawing which shows the forced separation state of a product part. 製品部の吸着保持及び取出し状態を示す説明図である。It is explanatory drawing which shows the adsorption | suction holding | maintenance and taking-out state of a product part. 残りの製品部をゲート切断位置に回動した状態を示す説明図である。It is explanatory drawing which shows the state which rotated the remaining product parts to the gate cutting position.

符号の説明Explanation of symbols

１成形品ゲート切断装置
２５チャック装置
２９把持作動部材
２９ａ把持爪
３５刃物受け部材
４３吸着部材
４７成形品保持切断ユニット
５１刃物作動部材の一部を構成する押上げ作動部材
５３刃物作動部材の一部を構成する押上げ板
６３可動台
６５分離作動部材
６７製品保持部材
６７ａ保持凹部
７１刃物台
７３切断刃 DESCRIPTION OF SYMBOLS 1 Molded product gate cutting device 25 Chuck device 29 Grasping operation member 29a Grasping claw 35 Cutlery receiving member 43 Adsorption member 47 Molded product holding / cutting unit 51 Push-up actuating member 53 constituting a part of the cutter operating member 53 Part of the cutter operating member Lifting plate 63 movable base 65 separation actuating member 67 product holding member 67a holding recess 71 tool post 73 cutting blade

Claims

樹脂成形品の製品部とスプル部をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対して保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる複数の成形品保持切断ユニットを樹脂成形品の各製品部に対応して設けた成形品ゲート切断装置。 In a molded product gate cutting device that cuts a product part and a sprue part of a resin molded product at a gate part, a holding body having a holding concave part that substantially matches the product part, and a direction approaching the holding concave part with respect to the holding body A tool post having a positioning portion at a position coinciding with the gate portion, a tool operating member for moving the tool post, and a tool tip provided on the tool stand so that the cutting edge coincides with the gate portion. Molded product gate cutting provided with a plurality of molded product holding and cutting units corresponding to each product part of the resin molded product, including a cutting blade and a separating operation member that moves the holding body in a direction in which the product part moves away from the sprue part apparatus.

樹脂成形品の製品部とスプル部をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対して保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる複数の成形品保持切断ユニットを樹脂成形品の各製品部に対応して設けたゲート切断機構と、ゲート切断機構における各成形品保持切断ユニットの保持凹部に対して樹脂成形品の製品部が一致するように移動可能に構成され、樹脂成形品のスプル部を把持する把持部材と、樹脂成形品の各製品部がそれぞれの保持凹部内に保持された際に位置決め部と協働してゲート部近辺をそれぞれ押圧する刃物受け部材と、ゲート切断された保持凹部内の各製品部をそれぞれ吸着して保持する吸着部材と、各吸着部材を、ゲート切断時には保持凹部内の製品部から離間する位置及びゲート切断後においては保持凹部内の製品部に近接する位置にそれぞれ移動させる移動部材とからなる樹脂成形品チャック装置とを備えた成形品ゲート切断装置。 In a molded product gate cutting device that cuts a product part and a sprue part of a resin molded product at a gate part, a holding body having a holding concave part that substantially matches the product part, and a direction approaching the holding concave part with respect to the holding body A tool post having a positioning portion at a position coinciding with the gate portion, a tool operating member for moving the tool post, and a tool tip provided on the tool stand so that the cutting edge coincides with the gate portion. And a gate cutting mechanism provided with a plurality of molded product holding and cutting units corresponding to each product portion of the resin molded product, and a cutting member and a separating operation member that moves the holding body in a direction in which the product portion moves away from the sprue portion. A gripping member configured to be movable so that the product part of the resin molded product is aligned with the holding recess of each molded product holding and cutting unit in the gate cutting mechanism, and a resin molded product When each product part is held in each holding recess, the blade receiving member that presses the vicinity of the gate part in cooperation with the positioning part, and each product part in the holding recess cut by the gate are adsorbed respectively. Resin comprising a holding member to be held and a moving member that moves each of the suction members to a position that is separated from the product portion in the holding recess when the gate is cut and a position that is close to the product portion in the holding recess after the gate is cut. A molded product gate cutting device comprising a molded product chuck device.

スプル部に偶数個の製品部を一体に設けた樹脂成形品をゲート部にて切断する成形品ゲート切断装置において、製品部にほぼ一致する形状の保持凹部を有した保持体と、保持体に対し、保持凹部に近づく方向へ移動可能に支持され、ゲート部に一致する箇所に位置決め部を有した刃物台と、該刃物台を移動させる刃物作動部材と、該刃物台に、刃先がゲート部に一致するように設けられた切断刃と、保持体を製品部がスプル部から遠ざかる方向へ移動させる分離作動部材とからなる樹脂成形品における製品部数の半分の数の成形品保持切断ユニットを樹脂成形品の製品部に対し、１個おきに設けたゲート切断機構と、ゲート切断機構における各成形品保持切断ユニットの保持凹部に対して樹脂成形品の製品部が一致するように移動可能に構成され、樹脂成形品のスプル部を把持する把持部材と、該把持部材を、樹脂成形品における製品部の相互間隔に応じた角度で回動する回動部材と、樹脂成形品の各製品部がそれぞれの保持凹部内に保持された際に位置決め部と協働してゲート部近辺をそれぞれ押圧する刃物受け部材と、ゲート切断された保持凹部内の各製品部をそれぞれ吸着して保持する吸着部材と、各吸着部材を、ゲート切断時には保持凹部内の製品部から離間する位置及びゲート切断後においては保持凹部内の製品部に近接する位置にそれぞれ移動させる移動部材とからなる樹脂成形品チャック装置とを備えた成形品ゲート切断装置。 In a molded product gate cutting device for cutting a resin molded product in which an even number of product parts are integrally provided in a sprue part at a gate part, a holding body having a holding recess having a shape substantially matching the product part, and a holding body On the other hand, it is supported so as to be movable in a direction approaching the holding recess, and has a turret having a positioning portion at a position coinciding with the gate portion; The molded product holding / cutting unit is half the number of product parts in the resin molded product comprising a cutting blade provided so as to match with a separation actuating member that moves the holding body in a direction in which the product part moves away from the sprue part. It is configured to be movable so that the product part of the resin molded product coincides with the holding recess of each molded product holding and cutting unit in the gate cutting mechanism and the gate cutting mechanism provided every other piece for the product part of the molded product A gripping member for gripping the sprue part of the resin molded product, a rotating member for rotating the gripping member at an angle corresponding to the mutual interval of the product part in the resin molded product, and each product part of the resin molded product. A blade receiving member that presses the vicinity of the gate portion in cooperation with the positioning portion when held in each holding recess, and an adsorption member that sucks and holds each product portion in the holding recess that has been gate-cut. And a moving member that moves each suction member to a position that is separated from the product portion in the holding recess when the gate is cut and a position that is close to the product portion in the holding recess after the gate is cut. And a molded product gate cutting device.

請求項１乃至３の切断刃は、所要の温度に加熱された成形品ゲート切断装置。 The cutting blade of Claims 1 thru | or 3 is the molded product gate cutting device heated to required temperature.

請求項１乃至３における各成形品保持切断ユニットの刃物台は、共通の刃物作動部材により移動可能とした成形品ゲート切断装置。 4. A molded product gate cutting apparatus in which the tool post of each molded product holding and cutting unit according to claim 1 is movable by a common blade operating member.

請求項１乃至３における各成形品保持切断ユニットの刃物台は、成形品保持切断ユニット毎に設けられた刃物作動部材により移動可能にした成形品ゲート切断装置。 4. A molded product gate cutting device in which the tool post of each molded product holding and cutting unit according to claim 1 is movable by a blade operating member provided for each molded product holding and cutting unit.

樹脂成形品の製品部を保持凹部内に保持した状態でゲート部に一致する箇所の位置決め部に沿って切断刃を移動してスプル部から製品部を切断した後に、保持体を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させる成形品のゲート切断方法。 After holding the product part of the resin molded product in the holding recess, move the cutting blade along the positioning part at the location that matches the gate part to cut the product part from the sprue part, and then the product part will spur the holding body. A gate cutting method for a molded product that moves in a direction away from the part to forcibly separate the product part from the sprue part.

樹脂成形品の製品部のゲート部に刃物受け部材を位置させた状態でスプル部を保持する成形品チャック手段を、製品部がゲート切断手段の保持部材に設けられた保持凹部に位置するように移動して保持させる工程、保持凹部に保持された製品部のゲート部に対し、刃先がゲート部に一致した状態で移動する切断刃によりゲート切断する工程、保持部材を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させる工程と、成形品チャック手段の吸着部材を移動して保持凹部内に保持された製品部を吸着した後に成形品チャック手段をゲート切断手段から離間移動して取出す工程とからなる成形品のゲート切断方法。 Molded product chuck means for holding the sprue portion with the blade receiving member positioned at the gate portion of the product portion of the resin molded product so that the product portion is located in the holding recess provided in the holding member of the gate cutting means A step of moving and holding, a step of cutting the gate with a cutting blade that moves with the blade edge aligned with the gate portion with respect to the gate portion of the product portion held in the holding recess, and the product portion moves away from the sprue portion Forcibly separating the product part from the sprue part by moving in the direction, and moving the suction member of the molded product chuck means to adsorb the product part held in the holding recess and then cutting the molded product chuck means to gate A gate cutting method for a molded product comprising a step of moving away from the means and taking it out.

ゲート切断手段の整数倍の個数の製品部を有した樹脂成形品の製品部の内、（整数−１）個おきの製品部のゲート部に刃物受け部材を位置させた状態で把持部材によりスプル部を把持する成形品チャック手段を、製品部がゲート切断手段の保持部材に設けられた保持凹部に位置するように移動して保持させる工程、保持凹部に保持された製品部のゲート部に対し、刃先がゲート部に一致した状態で切断刃を移動して製品部をゲート切断する工程、保持部材を製品部がスプル部から遠ざかる方向へ移動してスプル部から製品部を強制的に分離させる工程、成形品チャック手段の吸着部材を移動して保持凹部内に保持された製品部を吸着した後に成形品チャック手段をゲート切断手段から離間移動して取出す工程、成形品チャック手段の把持部材を回動して次位の製品部を順に刃物受け部材に一致させる工程を経た後に上記工程を上記整数回数繰返して樹脂成形品の製品部をゲート切断する成形品のゲート切断方法。 Of the product parts of the resin molded product having product parts that are an integral multiple of the gate cutting means, sprue by the gripping member with the blade receiving member positioned at the gate part of every (integer-1) product parts. A step of moving and holding the molded product chuck means for gripping the part so that the product part is positioned in the holding recess provided in the holding member of the gate cutting means, and the gate part of the product part held in the holding recess , The step of moving the cutting blade with the blade edge aligned with the gate portion to gate the product portion, and moving the holding member in the direction in which the product portion moves away from the sprue portion to forcibly separate the product portion from the sprue portion A step of moving the suction member of the molded product chuck means to suck the product portion held in the holding recess and then moving the molded product chuck means away from the gate cutting means to take it out; a gripping member of the molded product chuck means Turning to the gate cut method of a molded article of the step gate cut the product part of the resin molded article number of repetitions the integer after the process of matching the order blade receiving member product of the next order.

請求項７乃至９の切断刃は、所要の温度に加熱された成形品のゲート切断方法。 The cutting blade according to claim 7 is a gate cutting method of a molded product heated to a required temperature.

請求項７乃至９における各成形品保持切断ユニットの刃物台は、共通の刃物作動部材により移動可能とした成形品のゲート切断方法。 10. A method of cutting a molded product gate, wherein the tool rest of each molded product holding and cutting unit according to claim 7 is movable by a common blade operating member.

請求項７乃至９における各成形品保持切断ユニットの刃物台は、成形品保持切断ユニット毎に設けられた刃物作動部材により移動可能にした成形品のゲート切断方法。 10. The method of cutting a molded product gate, wherein the tool rest of each molded product holding and cutting unit according to claim 7 is movable by a blade operating member provided for each molded product holding and cutting unit.