JP2020049805A - Mold for injection molding - Google Patents

Mold for injection molding Download PDF

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JP2020049805A
JP2020049805A JP2018181797A JP2018181797A JP2020049805A JP 2020049805 A JP2020049805 A JP 2020049805A JP 2018181797 A JP2018181797 A JP 2018181797A JP 2018181797 A JP2018181797 A JP 2018181797A JP 2020049805 A JP2020049805 A JP 2020049805A
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rotation
mold
movable
fixed
rotating
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JP7006555B2 (en
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春樹 吉松
Haruki Yoshimatsu
春樹 吉松
修 奥井
Osamu Okui
修 奥井
岩田　浩一
Koichi Iwata
浩一 岩田
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Nidec Corp
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Nidec Corp
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Priority to JP2018181797A priority Critical patent/JP7006555B2/en
Priority to CN201910857580.9A priority patent/CN110948788A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2681—Moulds with rotatable mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/38—Cutting-off equipment for sprues or ingates

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

To provide a mold for injection molding having a configuration capable of cutting a gate-molding part formed in a resin component by suppressing a rotation support member located in a groove of a rotary shaft from rotating with the rotary shaft.SOLUTION: A mold 1 for injection molding has: a rotary shaft 42 having a spiral groove 42a, and penetrating a movable mold 21 in the thickness direction; a rotary part 41 having a cutting part 41d, and connected to the rotary shaft 42; a rotation support member 43b located in the groove 42a; a ring member 43a rotatably holding the rotation support member 43b on the inner circumferential side, and having a contact surface 43e extended in a direction crossing the rotation direction of the rotary shaft 42; a moving member 25 to which the ring member 43a is fixed, and movable in the axial line direction of the rotary shaft 42 with respect to the movable mold 21; and a key member 44 unrotatably supporting the ring member 43a in the rotating direction of the rotary shaft 42 with respect to the moving member 25 in a state in contat with the contact surface 43e of the ring member 43a, and fixed to the moving member 25.SELECTED DRAWING: Figure 1

Description

本発明は、射出成形用金型に関する。   The present invention relates to a mold for injection molding.

固定型と可動型との間に構成されるキャビティ内に溶融樹脂が注入されることにより、樹脂成形品を成形する射出成形用金型が知られている。このような射出成形用金型では、樹脂成形品にゲートまたはランナにおける樹脂成形物が繋がっているため、前記樹脂成形物を取り除く作業が必要である。   2. Description of the Related Art There is known an injection molding die for molding a resin molded product by injecting a molten resin into a cavity formed between a fixed die and a movable die. In such an injection mold, since the resin molded product in the gate or the runner is connected to the resin molded product, it is necessary to remove the resin molded product.

これに対し、例えば特許文献１に開示されるように、固定側型板に対して可動側型板が離間する際に、円形天面にアンダーゲートを有する回転軸を回転させることで、成形品から、ゲートにおける樹脂成形物を切断する射出成形用金型が知られている。この射出成形用金型では、前記回転軸は、外周面に沿って回転中心軸とは所定角度、傾斜する断面半円形の溝を有し、該溝内に、前記可動側型板を支持する受け板によって支持された鋼球が位置付けられる。前記回転軸は、前記受け板が前記可動側型板に対して離れる際に前記鋼球が前記溝に対して移動することにより、回転する。   On the other hand, as disclosed in Patent Document 1, for example, when a movable mold plate is separated from a fixed mold plate, a rotating shaft having an undergate on a circular top surface is rotated to form a molded product. Therefore, an injection mold for cutting a resin molded product at a gate is known. In this injection molding die, the rotation shaft has a groove having a semicircular cross-section that is inclined at a predetermined angle with respect to the rotation center axis along the outer peripheral surface, and supports the movable mold plate in the groove. A steel ball supported by the backing plate is positioned. The rotating shaft rotates when the steel ball moves with respect to the groove when the receiving plate separates from the movable mold plate.

なお、前記特許文献１に開示されている射出成形用金型では、前記受け板には、前記鋼球を支持するための固定スリーブがボルトによって固定されている。   In the injection mold disclosed in Patent Document 1, a fixing sleeve for supporting the steel balls is fixed to the receiving plate by bolts.

特開２００３−８０５６９号公報JP-A-2003-80569

ところで、前記特許文献１に開示される構成では、回転軸の溝内に位置付けられる鋼球を支持する固定スリーブが、ボルトによって受け板に固定されている。そのため、前記鋼球が前記溝に対して移動する際に、前記固定スリーブも前記回転軸とともに回転する可能性がある。これにより、前記固定スリーブに支持された前記鋼球と前記回転軸とが相対移動しにくくなるため、前記回転軸に対して十分な回転力を付与できない可能性がある。そうすると、前記樹脂成形物を切断可能な回転角度まで、前記回転軸を回転させることができない可能性がある。なお、前記鋼球が、回転軸を回転可能に支持する回転支持部材である。   By the way, in the configuration disclosed in Patent Literature 1, the fixing sleeve that supports the steel ball positioned in the groove of the rotating shaft is fixed to the receiving plate by bolts. Therefore, when the steel ball moves with respect to the groove, the fixed sleeve may also rotate with the rotation shaft. This makes it difficult for the steel ball supported by the fixed sleeve and the rotating shaft to relatively move, so that a sufficient rotational force may not be applied to the rotating shaft. Then, there is a possibility that the rotation shaft cannot be rotated to a rotation angle at which the resin molded product can be cut. The steel ball is a rotation support member that rotatably supports the rotation shaft.

本発明の目的は、回転軸の溝内に位置する回転支持部材が前記回転軸とともに回転することを抑制することにより、樹脂部品に形成されたゲート成形部を切断可能な構成を有する射出成形用金型を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide an injection molding apparatus having a configuration capable of cutting a gate molding portion formed on a resin component by suppressing rotation of a rotation support member positioned in a groove of a rotation shaft together with the rotation shaft. To provide a mold.

本発明の一実施形態に係る射出成形用金型は、固定型と、前記固定型に対して型開き方向及び型締め方向に移動可能で、前記固定型との間に溶融樹脂が注入されるキャビティを構成する可動型と、外表面に軸線を中心として螺旋状に延びる溝部を有し、前記可動型を厚み方向に貫通し且つ前記可動型に前記軸線を中心として回転可能に支持された回転軸と、前記キャビティ内に位置する切断部を有し、前記回転軸の軸線方向における前記キャビティ側の一端部に接続される回転部と、前記回転軸の前記溝部内に位置し、前記回転軸を、前記軸線を中心として回転可能に支持する回転支持部材と、内周側で前記回転支持部材を回転可能に保持し、且つ、外周側に前記回転軸の軸線方向に見て前記回転軸の回転方向に対して交差する方向に延びる接触面を有する筒状の支持本体部と、を有する支持部材と、前記支持本体部が固定され、前記可動型を挟んで前記固定型とは反対側に位置し且つ前記可動型に対して前記回転軸の軸線方向に移動可能な移動部材と、前記支持本体部の前記接触面と接触した状態で、前記支持本体部を前記移動部材に対して前記回転軸の回転方向に回転不能に支持するとともに、前記移動部材に固定される回転抑制部材と、を有する。   An injection mold according to an embodiment of the present invention is capable of moving in a fixed mold, a mold opening direction and a mold clamping direction with respect to the fixed mold, and a molten resin is injected between the fixed mold and the fixed mold. A movable die that forms the cavity, and a rotation that has a groove that extends spirally around the axis on the outer surface, penetrates the movable die in the thickness direction, and is rotatably supported by the movable die around the axis. A rotating part having a shaft, a cutting part located in the cavity, and being connected to one end of the rotating shaft in the axial direction on the cavity side, and a rotating part located in the groove of the rotating shaft; A rotation support member rotatably supporting the axis, and holding the rotation support member rotatably on the inner peripheral side, and, on the outer peripheral side, in the axial direction of the rotary shaft, Extends in a direction that intersects the direction of rotation A support member having a cylindrical support main body portion having a contact surface, and the support main body portion being fixed, being located on the opposite side to the fixed die across the movable die, and A movable member movable in the axial direction of the rotating shaft, and the supporting body is non-rotatably supported in the rotating direction of the rotating shaft with respect to the moving member in a state of being in contact with the contact surface of the supporting body. And a rotation suppressing member fixed to the moving member.

本発明の一実施形態に係る射出成形用金型によれば、回転軸の溝内に位置する回転支持部材が前記回転軸とともに回転することを抑制できる。これにより、樹脂部品に形成されたゲート部分を切断可能な射出成形用金型が得られる。   According to the injection molding die according to one embodiment of the present invention, it is possible to suppress the rotation of the rotation support member located in the groove of the rotation shaft together with the rotation shaft. Thus, an injection mold capable of cutting the gate portion formed on the resin component is obtained.

図１は、実施形態に係る射出成形用金型の概略構成を示す図である。FIG. 1 is a diagram showing a schematic configuration of an injection mold according to the embodiment. 図２は、図１におけるＩＩ−ＩＩ線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG. 図３は、図２において可動部のみを示す図である。FIG. 3 is a diagram showing only the movable portion in FIG. 図４は、図１におけるＩＶ−ＩＶ線断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 図５は、図１におけるＶ−Ｖ線断面図である。FIG. 5 is a sectional view taken along line VV in FIG. 図６は、図５におけるＶＩ−ＶＩ線断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 図７は、図２に示す状態から、受け板が可動型取付板に対して厚み方向に離間した状態を示す図である。FIG. 7 is a diagram illustrating a state in which the receiving plate is separated from the movable mounting plate in the thickness direction from the state illustrated in FIG. 2. 図８は、回転軸の溝部と回転支持部との位置関係を拡大して示す図である。FIG. 8 is an enlarged view showing the positional relationship between the groove of the rotation shaft and the rotation support portion. 図９は、受け板が可動型取付板に対して厚み方向に移動した際に、回転部が回転軸の軸線を中心として回転し、樹脂成形品に繋がったゲート成形部を切断する様子を固定型側から見た図である。FIG. 9 shows a state in which when the receiving plate moves in the thickness direction with respect to the movable mold mounting plate, the rotating unit rotates about the axis of the rotating shaft, and cuts the gate forming portion connected to the resin molded product. It is the figure seen from the type side.

以下、図面を参照し、本発明の実施の形態を詳しく説明する。なお、図中の同一または相当部分については同一の符号を付してその説明は繰り返さない。また、各図中の構成部材の寸法は、実際の構成部材の寸法及び各構成部材の寸法比率等を忠実に表していない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions have the same reference characters allotted, and description thereof will not be repeated. In addition, the dimensions of the components in the drawings do not accurately represent the dimensions of the actual components, the dimensional ratios of the respective components, and the like.

（射出成形用金型）
図１は、本発明の実施形態に係る射出成形用金型１の概略構成を示す図である。図２は、図１におけるＩＩ−ＩＩ線断面図である。図３は、図２において可動部２０のみを示す図である。図４は、図１におけるＩＶ−ＩＶ線断面図である。なお、図２及び図３では、説明のために、後述の回転機構４０を、一部を除いて断面で示す。 (Injection mold)
FIG. 1 is a diagram showing a schematic configuration of an injection mold 1 according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a diagram showing only the movable unit 20 in FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. In FIGS. 2 and 3, a rotation mechanism 40 described later is shown in a cross section, except for a part, for description.

射出成形用金型１は、図示しない射出装置からキャビティ１ａ内に溶融樹脂が射出されることにより、所定形状を有する樹脂成形品を成形する装置である。本実施形態の射出成形用金型１は、固定型１１に対して可動型２１を離間させる際に、樹脂成形品と繋がったゲート成形部などの非製品部を切断可能である。なお、前記非製品部は、樹脂成形品として機能する部分以外であり且つキャビティ１ａ内で樹脂成形品を成形する際に形成される部分である。   The injection mold 1 is a device for molding a resin molded product having a predetermined shape by injecting a molten resin into a cavity 1a from an injection device (not shown). When the movable mold 21 is separated from the fixed mold 11, the non-product part such as a gate molding part connected to the resin molded product can be cut by the injection molding die 1 of the present embodiment. The non-product part is a part other than a part functioning as a resin molded product and a part formed when the resin molded product is molded in the cavity 1a.

射出成形用金型１は、固定部１０と、可動部２０とを有する。特に図示しないが、固定部１０は、射出成形装置に固定される。可動部２０は、射出成形装置に、固定部１０に対して近づく方向及び離間する方向に移動可能に支持される。なお、前記近づく方向を、型閉じ方向といい、前記離間する方向を型開き方向という。   The injection molding die 1 has a fixed part 10 and a movable part 20. Although not particularly shown, the fixing unit 10 is fixed to the injection molding device. The movable section 20 is supported by the injection molding apparatus so as to be movable in a direction approaching and away from the fixed section 10. The approaching direction is referred to as a mold closing direction, and the separating direction is referred to as a mold opening direction.

固定部１０は、固定型１１と、固定型取付板１２とを有する。固定型１１及び固定型取付板１２は、それぞれ直方体状の部材である。固定型取付板１２は、可動部２０側の面に、固定型１１を収容可能な凹部１２ａを有する。固定型１１は、凹部１２ａ内に収容された状態で固定型取付板１２に図示しないボルト等によって固定される。これにより、固定部１０は、全体として、直方体状である。固定型１１及び固定型取付板１２は、それぞれ、厚さ方向に貫通する貫通穴１１ａ，１２ａを有する。これらの貫通穴１１ａ，１２ａ内には、後述のスプルー３０が位置する。   The fixed part 10 has a fixed die 11 and a fixed mounting plate 12. The fixed die 11 and the fixed mounting plate 12 are each a rectangular parallelepiped member. The fixed type mounting plate 12 has a concave portion 12 a on the surface on the movable portion 20 side, in which the fixed type 11 can be accommodated. The fixed die 11 is fixed to the fixed die mounting plate 12 with bolts or the like (not shown) while being accommodated in the concave portion 12a. Thereby, the fixing part 10 has a rectangular parallelepiped shape as a whole. The fixed die 11 and the fixed mounting plate 12 have through holes 11a and 12a, respectively, penetrating in the thickness direction. A sprue 30 described later is located in each of the through holes 11a and 12a.

可動部２０は、可動型２１と、可動型取付板２２と、受け板２３とを有する。可動型２１、可動型取付板２２及び受け板２３は、それぞれ、直方体状の部材である。   The movable part 20 has a movable die 21, a movable mounting plate 22, and a receiving plate 23. The movable die 21, the movable mounting plate 22, and the receiving plate 23 are each a rectangular parallelepiped member.

可動型取付板２２は、固定部１０側の面に、可動型２１を収容可能な凹部２２ａを有する。可動型２１は、凹部２２ａ内に収容された状態で可動型取付板２２に図示しないボルト等によって固定される。これにより、可動部２０は、全体として直方体状である。可動型２１及び可動型取付板２２は、それぞれ、厚み方向に貫通する貫通穴２１ａ，２２ａを有する。可動型２１の貫通穴２１ａ内には、後述の回転機構４０の回転部４１が位置する。可動型取付板２２の貫通穴２２ｂ内には、後述の回転機構４０の回転軸４２が位置する。   The movable mold mounting plate 22 has a concave portion 22a on the surface on the fixed portion 10 side, in which the movable mold 21 can be accommodated. The movable die 21 is fixed to the movable mounting plate 22 by bolts or the like (not shown) while being accommodated in the concave portion 22a. As a result, the movable portion 20 has a rectangular parallelepiped shape as a whole. The movable mold 21 and the movable mold mounting plate 22 have through holes 21a, 22a penetrating in the thickness direction, respectively. In the through hole 21a of the movable die 21, a rotating part 41 of a rotating mechanism 40 described later is located. A rotating shaft 42 of a rotating mechanism 40 described later is located in the through hole 22b of the movable mounting plate 22.

受け板２３は、可動型取付板２２に対して、固定部１０とは反対側に位置する。受け板２３は、可動型取付板２２側の面に、後述する回転機構４０の支持部材４３を固定するための固定部材４５を収容可能な凹部２３ａを有する。受け板２３及び固定部材４５は、後述するように、可動型２１に対して回転軸４２の軸線方向に移動可能な移動部材２５を構成する。   The receiving plate 23 is located on the opposite side of the fixed part 10 with respect to the movable mounting plate 22. The receiving plate 23 has, on a surface on the side of the movable mounting plate 22, a concave portion 23 a that can accommodate a fixing member 45 for fixing a support member 43 of the rotating mechanism 40 described below. The receiving plate 23 and the fixed member 45 constitute a movable member 25 that can move in the axial direction of the rotary shaft 42 with respect to the movable mold 21 as described later.

これにより、固定型取付板１２、可動型取付板２２及び受け板２３は、固定部１０及び可動部２０が並ぶ方向に積層される。固定型取付板１２に固定された固定型１１と、可動型取付板２２に固定された可動型２１とは、固定部１０及び可動部２０が並ぶ方向に対向する。なお、固定部１０及び可動部２０が並ぶ方向が、固定部１０、可動部２０、固定型１１、固定型取付板１２、可動型２１及び可動型取付板２２の厚み方向である。   Thus, the fixed mounting plate 12, the movable mounting plate 22, and the receiving plate 23 are stacked in a direction in which the fixed unit 10 and the movable unit 20 are arranged. The fixed die 11 fixed to the fixed die mounting plate 12 and the movable die 21 fixed to the movable die mounting plate 22 face each other in the direction in which the fixed part 10 and the movable part 20 are arranged. The direction in which the fixed unit 10 and the movable unit 20 are arranged is the thickness direction of the fixed unit 10, the movable unit 20, the fixed mold 11, the fixed mold plate 12, the movable mold 21, and the movable mold plate 22.

射出成形用金型１は、固定型１１と可動型２１とが最も近づいた状態で、固定型１１と可動型２１との間にキャビティ１ａを有する。このキャビティ１ａには、後述するスプルー３０から溶融樹脂を供給するためのランナ４１ｂ及びゲート４１ｃを介して、スプルー３０から溶融樹脂が供給される。   The injection mold 1 has a cavity 1a between the fixed mold 11 and the movable mold 21 when the fixed mold 11 and the movable mold 21 are closest to each other. The cavity 1a is supplied with molten resin from the sprue 30 via a runner 41b and a gate 41c for supplying the molten resin from the sprue 30 described later.

なお、本実施形態では、キャビティ１ａは、固定部１０及び可動部２０が並ぶ方向に見て、円環状である。よって、本実施形態における樹脂成形品Ｍは、図９に示すように円環状の部品である。図９において、符号Ｇが、ゲート４１ｃ内で形成され且つ樹脂成形品Ｍに繋がるゲート成形部である、符号Ｒが、ランナ４１ｂ内で形成されたランナ成形部である。   In the present embodiment, the cavity 1a is annular when viewed in the direction in which the fixed part 10 and the movable part 20 are arranged. Therefore, the resin molded article M in the present embodiment is an annular part as shown in FIG. In FIG. 9, reference symbol G is a gate forming portion formed in the gate 41 c and connected to the resin molded product M, and reference symbol R is a runner forming portion formed in the runner 41 b.

また、図２に示すように、射出成形用金型１は、スプルー３０と、回転機構４０とを有する。スプルー３０は、固定部１０の固定型１１及び固定型取付板１２を貫通した状態で、固定部１０に固定される。スプルー３０は、円筒状の部品であり、先端部が後述の回転機構４０の回転部４１上に位置する。スプルー３０は、内部の通路に溶融樹脂を流すことにより、回転部４１の表面に位置する後述のランナ４１ｂ及びゲート４１ｃを介して、キャビティ１ａ内に溶融樹脂を供給する。   Further, as shown in FIG. 2, the injection molding die 1 has a sprue 30 and a rotating mechanism 40. The sprue 30 is fixed to the fixed part 10 in a state where the sprue 30 penetrates the fixed die 11 and the fixed mounting plate 12 of the fixed part 10. The sprue 30 is a cylindrical component, and its tip is located on a rotating part 41 of a rotating mechanism 40 described later. The sprue 30 supplies the molten resin into the cavity 1a via a later-described runner 41b and a gate 41c located on the surface of the rotating unit 41 by flowing the molten resin into an internal passage.

回転機構４０は、ランナ４１ｂ及びゲート４１ｃによってスプルー３０からキャビティ１ａ内に溶融樹脂を流す機能と、ゲート４１ｃで形成されたゲート成形部Ｇを樹脂成形品Ｍから切断する機能とを有する。具体的には、回転機構４０は、回転部４１と、回転軸４２と、支持部材４３と、一対のキー部材４４と、接続部材４６とを有する。   The rotating mechanism 40 has a function of flowing the molten resin from the sprue 30 into the cavity 1a by the runner 41b and the gate 41c, and a function of cutting the gate molded portion G formed by the gate 41c from the resin molded product M. Specifically, the rotation mechanism 40 includes a rotation unit 41, a rotation shaft 42, a support member 43, a pair of key members 44, and a connection member 46.

回転軸４２は、可動型取付板２２及び受け板２３を厚み方向に貫通する。すなわち、回転軸４２の軸線Ｐは、前記厚み方向に延びる。回転軸４２の軸線Ｐは、スプルー３０の軸線と一致する。回転軸４２は、可動型取付板２２及び受け板２３に回転可能に支持される。回転軸４２は、外表面に軸線Ｐを中心として螺旋状に延びる溝部４２ａを有する。本実施形態では、溝部４２ａは、回転軸４２を固定部１０側から軸線方向に見て、受け板２３側に向かって時計回りに延びる螺旋状である。なお、溝部は、回転軸を固定部側から軸線方向に見て、受け板側に向かって反時計回りに延びる螺旋状でもよい。   The rotating shaft 42 penetrates the movable mounting plate 22 and the receiving plate 23 in the thickness direction. That is, the axis P of the rotating shaft 42 extends in the thickness direction. The axis P of the rotating shaft 42 coincides with the axis of the sprue 30. The rotating shaft 42 is rotatably supported by the movable mounting plate 22 and the receiving plate 23. The rotating shaft 42 has a groove 42a extending spirally around the axis P on the outer surface. In the present embodiment, the groove 42a has a spiral shape that extends clockwise toward the receiving plate 23 when the rotating shaft 42 is viewed from the fixed portion 10 in the axial direction. The groove may be formed in a spiral shape that extends counterclockwise toward the receiving plate when the rotating shaft is viewed from the fixed portion in the axial direction.

回転軸４２には、軸線方向におけるキャビティ１ａ側の一方の端部に、接続部材４６が接続される。接続部材４６は、円柱状の部材である。接続部材４６は、軸線方向の端部が回転軸４２における前記一方の端部に接続される。これにより、接続部材４６は、回転軸４２と一緒に回転する。   A connecting member 46 is connected to the rotating shaft 42 at one end on the cavity 1a side in the axial direction. The connection member 46 is a columnar member. The connecting member 46 has an axial end connected to the one end of the rotating shaft 42. Thereby, the connection member 46 rotates together with the rotation shaft 42.

図３に示すように、接続部材４６は、軸線方向においてキャビティ１ａ側に位置する端部に、回転部４１と接続される取付部４６ａを有する。この取付部４６ａは、軸線方向に見て、接続部材４６の円形の端面が弦に沿って切断された形状を有する。   As shown in FIG. 3, the connection member 46 has an attachment portion 46a connected to the rotating portion 41 at an end located on the cavity 1a side in the axial direction. The mounting portion 46a has a shape in which the circular end face of the connecting member 46 is cut along the chord when viewed in the axial direction.

回転部４１は、回転軸４２よりも径が大きい円柱状の部材であり、回転軸４２とスプルー３０との間で且つ可動型２１の貫通穴２１ａ内に位置する。すなわち、回転部４１の軸線方向の一方の面は、キャビティ１ａ側に位置する。図３に示すように、回転部４１は、接続部材４６の取付部４６ａに接続される。すなわち、回転部４１は、軸線方向の他方の面に取付部４６ａを挿入可能な取付凹部４１ａを有する。この取付凹部４１ａは、円形を弦に沿って切断した形状の開口を有する。回転部４１の取付凹部４１ａ内に接続部材４６の取付部４６ａを挿入することで、回転部４１は、回転軸４２の回転に応じて回転する。すなわち、回転部４１は、回転軸４２と一緒に、回転軸４２の軸線Ｐを中心として回転する。   The rotating portion 41 is a cylindrical member having a larger diameter than the rotating shaft 42, and is located between the rotating shaft 42 and the sprue 30 and in the through hole 21 a of the movable mold 21. That is, one surface in the axial direction of the rotating portion 41 is located on the cavity 1a side. As shown in FIG. 3, the rotating part 41 is connected to the mounting part 46 a of the connecting member 46. That is, the rotating portion 41 has the mounting concave portion 41a into which the mounting portion 46a can be inserted on the other surface in the axial direction. The mounting recess 41a has an opening having a shape obtained by cutting a circle along a chord. By inserting the mounting portion 46 a of the connection member 46 into the mounting recess 41 a of the rotating portion 41, the rotating portion 41 rotates according to the rotation of the rotating shaft 42. That is, the rotating unit 41 rotates about the axis P of the rotating shaft 42 together with the rotating shaft 42.

回転部４１は、軸線方向の一方の面に、複数のランナ４１ｂ及び複数のゲート４１ｃを有する。本実施形態では、ランナ４１ｂ及びゲート４１ｃは、回転部４１の径方向に延びている。複数のランナ４１ｂは、回転部４１の軸線から径方向に放射状に延びている。各ゲート４１ｃは、各ランナ４１ｂの径方向先端部から回転部４１の外周部に向かって延びている。   The rotating unit 41 has a plurality of runners 41b and a plurality of gates 41c on one surface in the axial direction. In the present embodiment, the runner 41b and the gate 41c extend in the radial direction of the rotating part 41. The plurality of runners 41b radially extend from the axis of the rotating unit 41 in the radial direction. Each gate 41c extends from the radial end of each runner 41b toward the outer periphery of the rotating part 41.

なお、回転部４１は、一つのランナ４１ｂ及び一つのゲート４１ｃを有してもよい。   Note that the rotating unit 41 may have one runner 41b and one gate 41c.

回転部４１は、軸線方向の一方の面における外周部に、切断部４１ｄを有する。この切断部４１ｄは、回転部４１の径方向において、ゲート４１ｃの最外周側である。後述するように、回転部４１が回転軸４２と一緒に回転した際に、キャビティ１ａ内で成形された樹脂成形品Ｍに繋がったゲート成形部Ｇは、切断部４１ｄによって切断される。切断部４１ｄは、キャビティ１ａ内に位置する。   The rotating portion 41 has a cutting portion 41d at an outer peripheral portion on one surface in the axial direction. The cut portion 41d is the outermost peripheral side of the gate 41c in the radial direction of the rotating portion 41. As will be described later, when the rotating unit 41 rotates together with the rotating shaft 42, the gate forming unit G connected to the resin molded product M molded in the cavity 1a is cut by the cutting unit 41d. The cutting part 41d is located in the cavity 1a.

詳しくは後述するが、キャビティ１ａ内で樹脂成形品Ｍを成形した後、上述の構成を有する回転部４１が軸線Ｐを中心として可動型２１に対して回転すると、樹脂成形品Ｍと、該樹脂成形品Ｍに繋がって成形されたゲート成形部Ｇとが、切断部４１ｄで切断される。これにより、樹脂成形品Ｍを成形した後に、ゲート成形部Ｇを樹脂成形品Ｍから切断する作業が不要になる。   As will be described in detail later, after the resin molded product M is molded in the cavity 1a, when the rotating unit 41 having the above-described configuration rotates about the axis P with respect to the movable mold 21, the resin molded product M and the resin The gate forming portion G connected to and formed with the molded product M is cut by the cutting portion 41d. This eliminates the need to cut the gate molded portion G from the resin molded article M after molding the resin molded article M.

しかも、上述のように、回転部４１が回転軸４２よりも径の大きい円柱状であり、且つ、切断部４１ｄが回転部４１の外周部に位置することにより、キャビティ１ａ内に形成される樹脂成形品Ｍにおいて、回転軸４２よりも径が大きい部分を、回転軸４２の回転に伴う切断部４１ｄの回転によって、容易に切断することができる。   Moreover, as described above, since the rotating portion 41 has a cylindrical shape having a larger diameter than the rotating shaft 42 and the cutting portion 41d is located on the outer peripheral portion of the rotating portion 41, the resin formed in the cavity 1a is formed. In the molded article M, a portion having a larger diameter than the rotating shaft 42 can be easily cut by the rotation of the cutting portion 41d accompanying the rotation of the rotating shaft 42.

支持部材４３は、回転軸４２を受け板２３に対して回転可能に支持する。支持部材４３は、リング部材４３ａと、回転支持部材４３ｂとを有する。リング部材４３ａは、円環状の部材であり、回転軸４２が貫通する。回転支持部材４３ｂは、リング部材４３ａの内周側に、回転可能に支持される。本実施形態では、回転支持部材４３ｂは、球状部材である。回転支持部材４３ｂは、リング部材４３ａの内周面に支持された状態で、回転軸４２の溝部４２ａ内に位置する。リング部材４３ａが、筒状の支持本体部である。   The support member 43 rotatably supports the rotation shaft 42 with respect to the receiving plate 23. The support member 43 has a ring member 43a and a rotation support member 43b. The ring member 43a is an annular member through which the rotating shaft 42 passes. The rotation support member 43b is rotatably supported on the inner peripheral side of the ring member 43a. In the present embodiment, the rotation support member 43b is a spherical member. The rotation support member 43b is located in the groove 42a of the rotation shaft 42 while being supported on the inner peripheral surface of the ring member 43a. The ring member 43a is a cylindrical support main body.

支持部材４３は、受け板２３の凹部２３ａ内で受け板２３に固定された固定部材４５に、一対のキー部材４４によって固定される。図５は、支持部材４３及び固定部材４５が可動型取付板２２に取り付けられた状態を、回転軸４２の軸線方向に見た図である。図６は、図５におけるＶＩ−ＶＩ線断面図である。   The support member 43 is fixed by a pair of key members 44 to a fixing member 45 fixed to the receiving plate 23 in the concave portion 23 a of the receiving plate 23. FIG. 5 is a diagram illustrating a state in which the support member 43 and the fixed member 45 are mounted on the movable mounting plate 22 when viewed in the axial direction of the rotary shaft 42. FIG. 6 is a sectional view taken along line VI-VI in FIG.

支持部材４３のリング部材４３ａは、回転軸４２の軸線方向に見て、可動型取付板２２側の面で且つ外周側の対向する位置に、一対の第１切り欠き部４３ｃを有する。一対の第１切り欠き部４３ｃは、前記軸線方向に見て、リング部材４３ａの外周が弦に沿って切り欠かかれた形状を有する。一対の第１切り欠き部４３ｃは、前記軸線方向において、リング部材４３ａにおける可動型取付板２２側の一部に位置する。すなわち、リング部材４３ａは、一対の第１切り欠き部４３ｃと第１切り欠き部４３ｃが形成されていない部分との間に、段差部４３ｄを有する。   The ring member 43a of the support member 43 has a pair of first notches 43c at a position facing the outer peripheral side on the surface of the movable mounting plate 22 when viewed in the axial direction of the rotating shaft 42. The pair of first notches 43c have a shape in which the outer periphery of the ring member 43a is cut along the chord when viewed in the axial direction. The pair of first notches 43c are located on a part of the ring member 43a on the movable mounting plate 22 side in the axial direction. That is, the ring member 43a has the step 43d between the pair of first notches 43c and the portion where the first notch 43c is not formed.

なお、リング部材４３ａにおいて、一対の第１切り欠き部４３ｃの各側面が、回転軸４２の軸線方向に見て回転軸４２の回転方向に対して交差する方向に延びる接触面４３ｅである。これにより、リング部材４３ａは、内周側で回転支持部材４３ｂを回転可能に保持し、且つ、外周側に回転軸４２の軸線方向に見て回転軸４２の回転方向に対して交差する方向に延びる接触面４３ｅを有する。本実施形態では、リング部材４３ａは、回転軸４２を軸線方向に見て、軸線Ｐを挟んでリング部材４３ａの両側に接触面４３ｅを一対有する。各接触面４３ｅは、リング部材４３ａを回転軸４２の軸線方向に見て、回転軸４２の回転方向に対して交差する方向に延びる平面である。   In the ring member 43a, each side surface of the pair of first notch portions 43c is a contact surface 43e extending in a direction intersecting the rotation direction of the rotation shaft 42 when viewed in the axial direction of the rotation shaft 42. Thus, the ring member 43a holds the rotation support member 43b rotatably on the inner peripheral side, and in the direction intersecting the rotational direction of the rotary shaft 42 when viewed in the axial direction of the rotary shaft 42 on the outer peripheral side. It has an extending contact surface 43e. In the present embodiment, the ring member 43a has a pair of contact surfaces 43e on both sides of the ring member 43a with the axis P interposed therebetween when the rotating shaft 42 is viewed in the axial direction. Each contact surface 43e is a plane that extends in a direction intersecting the rotation direction of the rotation shaft 42 when the ring member 43a is viewed in the axial direction of the rotation shaft 42.

固定部材４５は、貫通穴４５ａを有する円環状の部材である。固定部材４５は、受け板２３の凹部２３ａ内に収容された状態で受け板２３に固定される。貫通穴４５ａ内には、回転軸４２及び支持部材４３が貫通する。固定部材４５は、可動型取付板２２側の面における貫通穴４５ａの周りで且つ対向する位置に、一対の第２切り欠き部４５ｂを有する。一対の第２切り欠き部４５ｂの側面４５ｃは、回転軸４２の軸線方向に見て、回転軸４２の回転方向に対して交差する方向に延びる面である。   The fixing member 45 is an annular member having a through hole 45a. The fixing member 45 is fixed to the receiving plate 23 in a state where the fixing member 45 is accommodated in the concave portion 23 a of the receiving plate 23. The rotating shaft 42 and the support member 43 penetrate into the through hole 45a. The fixing member 45 has a pair of second cutout portions 45b at positions around and facing the through hole 45a on the surface on the movable type mounting plate 22 side. The side surfaces 45c of the pair of second notches 45b are surfaces extending in a direction intersecting the rotation direction of the rotation shaft 42 when viewed in the axial direction of the rotation shaft 42.

一対の第２切り欠き部４５ｂは、固定部材４５が可動型取付板２２に固定され且つ支持部材４３のリング部材４３ａが固定部材４５に支持された状態で、それぞれ、支持部材４３の第１切り欠き部４３ｃと並んで位置する。一対の第１切り欠き部４３ｃ及び一対の第２切り欠き部４５ｂは、キー部材４４を収容可能な一対のキー部材収容部４７を構成する。一対のキー部材収容部４７は、回転軸４２を軸線方向に見て、回転軸４２を挟んで対向する位置に位置する。一対のキー部材収容部４７は、リング部材４３ａ及び固定部材４５に跨って、リング部材４３ａの接線方向に延びる。   The pair of second cutout portions 45b are respectively provided with first cutouts of the support member 43 in a state where the fixed member 45 is fixed to the movable mounting plate 22 and the ring member 43a of the support member 43 is supported by the fixed member 45. It is located alongside the notch 43c. The pair of first cutouts 43c and the pair of second cutouts 45b constitute a pair of key member storage portions 47 that can store the key members 44. The pair of key member accommodating portions 47 are located at positions facing each other with the rotating shaft 42 interposed therebetween when the rotating shaft 42 is viewed in the axial direction. The pair of key member storage portions 47 extend in the tangential direction of the ring member 43a over the ring member 43a and the fixing member 45.

一対のキー部材４４は、それぞれ、直方体状の部材である。一対のキー部材４４は、一対のキー部材収容部４７内に収容された状態で、ボルト等によって固定部材４５に固定される。これにより、一対のキー部材４４は、回転軸４２を軸線方向に見て、回転軸４２を挟んで対向する位置に位置し、支持部材４３のリング部材４３ａの接線方向に延びる。   Each of the pair of key members 44 is a rectangular parallelepiped member. The pair of key members 44 are fixed to the fixing member 45 by bolts or the like while being housed in the pair of key member housing portions 47. As a result, the pair of key members 44 are located at positions facing each other across the rotation shaft 42 when the rotation shaft 42 is viewed in the axial direction, and extend in the tangential direction of the ring member 43 a of the support member 43.

各キー部材収容部４７内に収容された各キー部材４４は、支持部材４３のリング部材４３ａにおける第１切り欠き部４３ｃ内に位置し、且つ、固定部材４５の第２切り欠き部４５ｂ内に位置する。各キー部材４４の側面は、各キー部材収容部４７内に各キー部材４４が収容された状態で、リング部材４３ａの第１切り欠き部４３ｃの側面である接触面４３ｅ及び固定部材４５の第２切り欠き部４５ｂの側面４５ｃに接触する。すなわち、各キー部材４４は、側面として、接触面４３ｅと接触する平面を有する。本実施形態の射出成形用金型１は、一対の接触面４３ｅにそれぞれ接触するキー部材４４を一対有する。   Each key member 44 accommodated in each key member accommodating portion 47 is located in the first notch portion 43c of the ring member 43a of the support member 43 and in the second notch portion 45b of the fixing member 45. To position. The side surface of each key member 44 has a contact surface 43e which is a side surface of the first cutout portion 43c of the ring member 43a and a second side surface of the fixing member 45 in a state where each key member 44 is housed in each key member housing portion 47. It contacts the side surface 45c of the two notch portions 45b. That is, each key member 44 has, as a side surface, a plane that is in contact with the contact surface 43e. The injection molding die 1 of the present embodiment has a pair of key members 44 that respectively contact the pair of contact surfaces 43e.

なお、各キー部材４４は、回転軸４２が軸線Ｐを中心として回転する際に支持部材４３のリング部材４３ａが回転方向の力を受けた場合に、リング部材４３ａの回転を抑制可能な位置であれば、第１切り欠き部４３ｃの接触面４３ｅ及び固定部材４５の第２切り欠き部４５ｂの側面４５ｃのうち少なくとも一方の側面に対して隙間を有する位置に位置付けられてもよい。   Note that each key member 44 is at a position where the rotation of the ring member 43a can be suppressed when the ring member 43a of the support member 43 receives a force in the rotation direction when the rotation shaft 42 rotates about the axis P. If so, it may be positioned at a position having a gap with at least one of the contact surface 43e of the first cutout portion 43c and the side surface 45c of the second cutout portion 45b of the fixing member 45.

上述のように、支持部材４３のリング部材４３ａにおける第１切り欠き部４３ｃと固定部材４５の第２切り欠き部４５ｂとによって構成されたキー部材収容部４７内に、キー部材４４を収容した状態で、該キー部材４４を固定部材４５に固定することにより、リング部材４３ａが回転軸４２の軸線方向に移動したり軸線Ｐを中心として回転したりすることを抑制できる。キー部材４４が、リング部材４３ａの接触面４３ｅと接触した状態で、リング部材４３ａを受け板２３に対して回転軸４２の回転方向に回転不能に支持するとともに、受け板２３に固定される回転抑制部材である。固定部材４５の第２切り欠き部４５ｂが、移動部材２５の凹部である。   As described above, a state in which the key member 44 is accommodated in the key member accommodating portion 47 constituted by the first notch portion 43c of the ring member 43a of the support member 43 and the second notch portion 45b of the fixing member 45. By fixing the key member 44 to the fixing member 45, it is possible to suppress the ring member 43a from moving in the axial direction of the rotating shaft 42 or rotating around the axis P. In a state where the key member 44 is in contact with the contact surface 43e of the ring member 43a, the ring member 43a is non-rotatably supported with respect to the receiving plate 23 in the rotation direction of the rotating shaft 42, and is fixed to the receiving plate 23. It is a suppressing member. The second cutout portion 45b of the fixing member 45 is a concave portion of the moving member 25.

すなわち、本実施形態では、移動部材２５は、キー部材４４の一部を収容可能な凹部としての第２切り欠き部４５ｂを有する。キー部材４４は、リング部材４３ａの接触面４３ｅに接触し且つ第２切り欠き部４５ｂの側面４５ｃに接触した状態で、リング部材４３ａを受け板２３に固定する。これにより、回転軸４２の回転方向におけるリング部材４３ａの移動を、キー部材４４によって、より確実に抑制することができる。よって、移動部材２５が可動型２１に対して回転軸４２の軸線方向に移動した際にリング部材４３ａが回転軸４２と一緒に回転することを、より確実に抑制することができる。   That is, in the present embodiment, the moving member 25 has the second cutout portion 45b as a concave portion that can accommodate a part of the key member 44. The key member 44 fixes the ring member 43a to the receiving plate 23 while being in contact with the contact surface 43e of the ring member 43a and the side surface 45c of the second cutout portion 45b. Thus, the movement of the ring member 43 a in the rotation direction of the rotation shaft 42 can be more reliably suppressed by the key member 44. Therefore, when the moving member 25 moves in the axial direction of the rotary shaft 42 with respect to the movable mold 21, the ring member 43a can be more reliably prevented from rotating together with the rotary shaft 42.

また、本実施形態では、リング部材４３ａは、外周側に接触面４３ｅを複数有する。射出成形用金型１は、複数の接触面４３ｅにそれぞれ接触するキー部材４４を複数有する。複数のキー部材４４が、リング部材４３ａの複数の接触面４３ｅに接触した状態で、移動部材２５に固定される。これにより、リング部材４３ａを移動部材２５に対してより確実に固定することができる。   In the present embodiment, the ring member 43a has a plurality of contact surfaces 43e on the outer peripheral side. The injection molding die 1 has a plurality of key members 44 that respectively contact the plurality of contact surfaces 43e. The plurality of key members 44 are fixed to the moving member 25 while being in contact with the plurality of contact surfaces 43e of the ring member 43a. Thereby, the ring member 43a can be more reliably fixed to the moving member 25.

具体的には、リング部材４３ａは、回転軸４２の軸線方向に見て、軸線Ｐを挟んでリング部材４３ａの両側に接触面４３ｅを一対有する。射出成形用金型１は、一対の接触面４３ｅにそれぞれ接触するキー部材４４を一対有する。   Specifically, the ring member 43a has a pair of contact surfaces 43e on both sides of the ring member 43a with respect to the axis P when viewed in the axial direction of the rotating shaft 42. The injection molding die 1 has a pair of key members 44 that respectively contact the pair of contact surfaces 43e.

これにより、一対のキー部材４４が、回転軸４２の軸線方向に見てリング部材４３ａの両側に位置する一対の接触面４３ｅに接触した状態で、移動部材２５に固定される。これにより、リング部材４３ａを、移動部材２５に対して回転軸４２の回転方向により確実に固定することができる。よって、リング部材４３ａが、回転軸４２と一緒に回転することを、一対のキー部材４４によって、より確実に抑制することができる。   As a result, the pair of key members 44 are fixed to the moving member 25 in a state of contacting the pair of contact surfaces 43e located on both sides of the ring member 43a when viewed in the axial direction of the rotating shaft 42. Thus, the ring member 43a can be more reliably fixed to the moving member 25 in the rotation direction of the rotating shaft 42. Therefore, the pair of key members 44 can more reliably suppress the ring member 43a from rotating together with the rotating shaft 42.

接触面４３ｅは、リング部材４３ａを回転軸４２の軸線方向に見て、回転軸４２の回転方向に対して交差する方向に延びる平面である。キー部材４４は、接触面４３ｅと接触する平面を有する。   The contact surface 43e is a plane extending in a direction intersecting the rotation direction of the rotation shaft 42 when the ring member 43a is viewed in the axial direction of the rotation shaft 42. The key member 44 has a flat surface that comes into contact with the contact surface 43e.

これにより、リング部材４３ａを回転軸４２の軸線方向に見て、回転軸４２の回転方向に対して交差する方向に延びる平面である接触面４３ｅに対し、キー部材４４の平面が接触するため、リング部材４３ａが回転軸４２と一緒に回転することをより確実に抑制することができる。   As a result, when the ring member 43a is viewed in the axial direction of the rotation shaft 42, the plane of the key member 44 comes into contact with the contact surface 43e, which is a plane extending in a direction intersecting the rotation direction of the rotation shaft 42. The rotation of the ring member 43a together with the rotation shaft 42 can be suppressed more reliably.

本実施形態では、受け板２３は、可動型取付板２２に対して厚み方向に移動可能である。すなわち、受け板２３は、可動型２１に対して回転軸４２の軸線方向に移動可能な移動部材である。図７は、受け板２３が、可動型取付板２２に対して厚み方向に離間した状態を示す図である。図８は、回転軸４２の溝部４２ａと回転支持部材４３ｂとの位置関係を拡大して示す図である。図９は、受け板２３が可動型取付板２２に対して厚み方向に移動した際に、回転部４１が回転軸４２の軸線Ｐを中心として回転し、樹脂成形品Ｍに繋がったゲート成形部Ｇを切断する様子を固定型１１側から見た図である。なお、受け板２３の移動機構については、従来の可動型の移動機構と同様であるため、詳しい説明を省略する。   In the present embodiment, the receiving plate 23 is movable in the thickness direction with respect to the movable mounting plate 22. That is, the receiving plate 23 is a movable member that can move in the axial direction of the rotary shaft 42 with respect to the movable mold 21. FIG. 7 is a diagram illustrating a state in which the receiving plate 23 is separated from the movable mounting plate 22 in the thickness direction. FIG. 8 is an enlarged view showing the positional relationship between the groove 42a of the rotation shaft 42 and the rotation support member 43b. FIG. 9 is a view illustrating a state in which the rotating portion 41 rotates about the axis P of the rotating shaft 42 when the receiving plate 23 moves in the thickness direction with respect to the movable mold mounting plate 22, and the gate forming portion connected to the resin molded product M. FIG. 3 is a diagram showing a state in which G is cut as viewed from a fixed mold 11 side. Since the moving mechanism of the receiving plate 23 is the same as the conventional movable moving mechanism, detailed description is omitted.

上述のように受け板２３が可動型取付板２２に対して厚み方向に離間することにより、固定部材４５を介して受け板２３に固定された支持部材４３の回転支持部材４３ｂは、回転軸４２の螺旋状の溝部４２ａに対し、回転軸４２の軸線方向で且つ可動型取付板２２から離間する方向に移動する。このとき、回転支持部材４３ｂは回転軸４２の螺旋状の溝部４２ａに沿って移動するため、回転支持部材４３ｂによって、回転軸４２には軸線Ｐを中心として回転する力が加わる。   As described above, when the receiving plate 23 is spaced apart from the movable mounting plate 22 in the thickness direction, the rotation supporting member 43b of the supporting member 43 fixed to the receiving plate 23 via the fixing member 45 Is moved in the axial direction of the rotary shaft 42 and in the direction away from the movable mounting plate 22 with respect to the spiral groove 42a. At this time, since the rotation support member 43b moves along the spiral groove 42a of the rotation shaft 42, a force for rotating the rotation shaft 42 about the axis P is applied by the rotation support member 43b.

本実施形態では、既述のとおり、回転軸４２の溝部４２ａは、回転軸４２を固定部１０側から軸線方向に見て、受け板２３側に向かって時計回りに延びる螺旋状である。そのため、上述のように、回転支持部材４３ｂが回転軸４２の溝部４２ａに対して回転軸４２の軸線方向で且つ可動型取付板２２から離間する方向に移動すると、回転軸４２は、回転軸４２を固定部１０側から軸線方向に見て、反時計回りに回転する。   In the present embodiment, as described above, the groove 42a of the rotating shaft 42 has a spiral shape that extends clockwise toward the receiving plate 23 when the rotating shaft 42 is viewed in the axial direction from the fixed portion 10 side. Therefore, as described above, when the rotation support member 43b moves in the axial direction of the rotation shaft 42 and in the direction away from the movable mounting plate 22 with respect to the groove 42a of the rotation shaft 42, the rotation shaft 42 Is rotated counterclockwise when viewed from the fixing portion 10 side in the axial direction.

このように回転軸４２が反時計回りに回転すると、図９に示すように、回転部４１も、固定部１０側から見て反時計回りに回転する。これにより、回転部４１が可動型２１に対して移動する。   When the rotating shaft 42 rotates counterclockwise in this way, as shown in FIG. 9, the rotating unit 41 also rotates counterclockwise when viewed from the fixed unit 10 side. Thereby, the rotating part 41 moves with respect to the movable mold 21.

したがって、キャビティ１ａ内で樹脂成形品Ｍを成形した後、上述のように受け板２３を可動型取付板２２に対して厚み方向に離間させて、回転軸４２及び回転部４１を回転させることにより、樹脂成形品Ｍに繋がって回転部４１のゲート４１ｃで形成されたゲート成形部Ｇを、樹脂成形品Ｍから分離させることができる。   Accordingly, after the resin molded article M is molded in the cavity 1a, the receiving plate 23 is separated from the movable die mounting plate 22 in the thickness direction as described above, and the rotating shaft 42 and the rotating portion 41 are rotated. The gate molded portion G connected to the resin molded product M and formed by the gate 41c of the rotating portion 41 can be separated from the resin molded product M.

よって、上述の構成により、射出成形用金型１内で樹脂成形品Ｍからゲート成形部Ｇを分離できるため、射出成形品Ｍを射出成形した後にゲート成形部Ｇを除去する作業が不要になる。   Therefore, according to the above-described configuration, since the gate molding portion G can be separated from the resin molded product M in the injection molding die 1, it is not necessary to remove the gate molded portion G after injection molding the injection molded product M. .

そして、本実施形態では、一対のキー部材４４が、支持部材４３のリング部材４３ａにおける第１切り欠き部４３ｃと固定部材４５の第２切り欠き部４５ｂとによって構成されるキー部材収容部４７内に収容された状態で、固定部材４５に固定される。一対のキー部材４４は、リング部材４３ａの接線方向に延びる。   In the present embodiment, the pair of key members 44 are provided in the key member housing 47 formed by the first cutout 43 c of the ring member 43 a of the support member 43 and the second cutout 45 b of the fixing member 45. Is fixed to the fixing member 45 in the state of being housed. The pair of key members 44 extend in a tangential direction of the ring member 43a.

このような構成を有するキー部材４４によって、上述のように受け板２３を可動型取付板２２に対して厚み方向に離間させて回転軸４２及び回転部４１を回転させる際に、リング部材４３ａが回転軸４２と一緒に回転することを抑制できる。これにより、可動部２０に対して回転軸４２及び回転部４１をより確実に回転させることができるため、樹脂成形品Ｍに繋がったゲート成形部Ｇを、回転部４１によって、樹脂成形品Ｍからより確実に分離させることができる。   By the key member 44 having such a configuration, when the receiving plate 23 is separated in the thickness direction from the movable mounting plate 22 to rotate the rotating shaft 42 and the rotating portion 41 as described above, the ring member 43a Rotation with the rotation shaft 42 can be suppressed. Thereby, the rotating shaft 42 and the rotating part 41 can be more reliably rotated with respect to the movable part 20, so that the gate forming part G connected to the resin molded article M is separated from the resin molded article M by the rotating part 41. Separation can be performed more reliably.

以上より、本実施形態では、射出成形用金型１は、固定型１１と、固定型１１に対して型開き方向及び型締め方向に移動可能で、固定型１１との間に溶融樹脂が注入されるキャビティ１ａを構成する可動型２１と、外表面に軸線Ｐを中心として螺旋状に延びる溝部４２ａを有し、可動型２１を厚み方向に貫通し且つ可動型２１に軸線Ｐを中心として回転可能に支持された回転軸４２と、キャビティ１ａ内に位置する切断部４１ｄを有し、回転軸４２の軸線方向におけるキャビティ１ａ側の一端部に接続される回転部４１と、回転軸４２の溝部４２ａ内に位置し、回転軸４２を、軸線Ｐを中心として回転可能に支持する回転支持部材４３ｂと、内周側で回転支持部材４３ｂを回転可能に保持し、且つ、外周側に回転軸４２の軸線方向に見て回転軸４２の回転方向に対して交差する方向に延びる接触面４３ｅを有する筒状のリング部材４３ａと、を有する支持部材４３と、リング部材４３ａが固定され、可動型２１を挟んで固定型１１とは反対側に位置し且つ可動型２１に対して回転軸４２の軸線方向に移動可能な受け板２３と、リング部材４３ａの接触面４３ｅと接触した状態で、リング部材４３ａを受け板２３に対して回転軸４２の回転方向に回転不能に支持するとともに、受け板２３に固定されるキー部材４４と、を有する。   As described above, in the present embodiment, the injection mold 1 is movable with respect to the fixed mold 11 in the mold opening direction and the mold clamping direction with respect to the fixed mold 11, and the molten resin is injected between the fixed mold 11 and the fixed mold 11. And a groove 42a extending helically around the axis P on the outer surface thereof, penetrates the movable mold 21 in the thickness direction, and rotates the movable mold 21 about the axis P. A rotatable shaft 42 rotatably supported, a rotatable portion 41 having a cutting portion 41d located in the cavity 1a, and connected to one end of the rotatable shaft 42 on the side of the cavity 1a in the axial direction; A rotation support member 43b that is rotatably supported about the axis P, and a rotation support member 43b that is rotatably held on the inner peripheral side, and that the rotation shaft 42 is Rotate in the axial direction of The support member 43 having a cylindrical ring member 43a having a contact surface 43e extending in a direction intersecting the rotation direction of the support member 43, and the fixed die 11 to which the ring member 43a is fixed and the movable die 21 is sandwiched. The receiving plate 23, which is located on the opposite side and is movable in the axial direction of the rotary shaft 42 with respect to the movable mold 21, and the ring member 43 a with respect to the receiving plate 23 in contact with the contact surface 43 e of the ring member 43 a. And a key member 44 fixed to the receiving plate 23 while being supported so as not to rotate in the rotation direction of the rotating shaft 42.

上述の構成において、受け板２３が可動型２１に対して回転軸４２の軸線方向に移動することにより、回転軸４２の外表面に螺旋状に延びる溝部４２ａに沿って、受け板２３に固定された支持部材４３の回転支持部材４３ｂが相対移動する。これにより、回転軸４２は、軸線Ｐを中心として回転する。そうすると、キャビティ１ａ内に位置する切断部４１ｄを有し、回転軸４２の軸線方向におけるキャビティ１ａ側の一端部に接続される回転部４１も、回転軸４２と一緒に軸線Ｐを中心として回転する。よって、キャビティ１ａ内への樹脂注入によって形成された樹脂成形品Ｍが円環状で且つ該樹脂成形品Ｍの内周側にゲート成形部Ｇが形成されている場合に、切断部４１ｄによって、ゲート成形部Ｇを容易に切断することができる。   In the above-described configuration, the receiving plate 23 is fixed to the receiving plate 23 along the groove 42 a spirally extending on the outer surface of the rotating shaft 42 by moving the receiving plate 23 in the axial direction of the rotating shaft 42 with respect to the movable mold 21. The rotation support member 43b of the support member 43 moves relatively. Thereby, the rotation shaft 42 rotates about the axis P. Then, the rotating portion 41 having the cutting portion 41d located in the cavity 1a and connected to one end of the rotating shaft 42 on the side of the cavity 1a in the axial direction also rotates about the axis P together with the rotating shaft 42. . Therefore, when the resin molded product M formed by injecting the resin into the cavity 1a is annular and the gate molded portion G is formed on the inner peripheral side of the resin molded product M, the gate 41 is cut by the cut portion 41d. The molded part G can be easily cut.

また、上述の構成では、支持部材４３において回転支持部材４３ｂを回転可能に保持するリング部材４３ａは、外周側に回転軸４２の軸線方向に見て回転軸４２の回転方向に対して交差する方向に延びる接触面４３ｅを有し、接触面４３ｅに接触した状態で受け板２３にキー部材４４が固定されている。これにより、受け板２３の移動によって回転軸４２の溝部４２ａに対して回転支持部材４３ｂが相対移動した際に、リング部材４３ａが、回転軸４２と一緒に回転方向に回転することを抑制することができる。よって、受け板２３の移動によって、回転軸４２を介して回転部４１をより確実に回転させることができる。したがって、キャビティ１ａ内で、樹脂成形品Ｍに繋がったゲート成形部Ｇを、回転部４１の切断部４１ｄによって、より確実に切断することができる。   Further, in the above-described configuration, the ring member 43a that rotatably holds the rotation support member 43b in the support member 43 has a direction that intersects the rotation direction of the rotation shaft 42 when viewed in the axial direction of the rotation shaft 42 on the outer peripheral side. The key member 44 is fixed to the receiving plate 23 in a state of being in contact with the contact surface 43e. Accordingly, when the rotation support member 43b relatively moves with respect to the groove 42a of the rotation shaft 42 due to the movement of the receiving plate 23, the ring member 43a is prevented from rotating in the rotation direction together with the rotation shaft 42. Can be. Therefore, the movement of the receiving plate 23 allows the rotating part 41 to be more reliably rotated via the rotating shaft 42. Therefore, in the cavity 1 a, the gate forming portion G connected to the resin molded product M can be more reliably cut by the cutting portion 41 d of the rotating portion 41.

本実施形態の構成において、接触面４３ｅは、リング部材４３ａの外周側における軸線方向の一部に位置する。キー部材４４は、リング部材４３ａを、受け板２３に対して回転軸４２の回転方向及び軸線方向に固定する。   In the configuration of the present embodiment, the contact surface 43e is located at a part in the axial direction on the outer peripheral side of the ring member 43a. The key member 44 fixes the ring member 43 a to the receiving plate 23 in the rotation direction and the axial direction of the rotation shaft 42.

リング部材４３ａを、キー部材４４によって、受け板２３に対して回転軸４２の回転方向及び軸線方向に固定することができる。よって、リング部材４３ａを、簡単な構成によって、受け板２３により確実に固定することができる。   The ring member 43a can be fixed to the receiving plate 23 in the rotation direction and the axial direction of the rotation shaft 42 by the key member 44. Therefore, the ring member 43a can be securely fixed to the receiving plate 23 with a simple configuration.

（その他の実施形態）
以上、本発明の実施の形態を説明したが、上述した実施の形態は本発明を実施するための例示に過ぎない。よって、上述した実施の形態に限定されることなく、その趣旨を逸脱しない範囲内で上述した実施の形態を適宜変形して実施することが可能である。 (Other embodiments)
The embodiment of the present invention has been described above, but the above-described embodiment is merely an example for implementing the present invention. Therefore, without being limited to the above-described embodiment, the above-described embodiment can be appropriately modified and implemented without departing from the spirit thereof.

前記実施形態では、射出成形用金型１は、固定型１１及び可動型２１を有する。しかしながら、射出成形用金型１は、複数の金型を有してもよい。この場合、前記複数の金型は、キャビティを構成可能で且つ相対移動可能な複数の金型を含む。   In the above embodiment, the injection mold 1 has a fixed mold 11 and a movable mold 21. However, the injection mold 1 may have a plurality of molds. In this case, the plurality of molds include a plurality of molds capable of forming a cavity and relatively moving.

前記実施形態では、回転機構４０の回転支持部材４３ｂは、球状部材である。しかしながら、回転支持部材は、例えば円柱状など、回転軸４２の溝部４２ａに対して回転可能な形状であれば、他の形状を有してもよい。   In the embodiment, the rotation support member 43b of the rotation mechanism 40 is a spherical member. However, the rotation support member may have another shape, such as a column shape, as long as it can rotate with respect to the groove 42a of the rotation shaft 42.

前記実施形態では、一対のキー部材４４が、支持部材４３のリング部材４３ａにおける第１切り欠き部４３ｃと固定部材４５の第２切り欠き部４５ｂとによって構成されるキー部材収容部４７内に収容された状態で、固定部材４５に固定される。   In the embodiment, the pair of key members 44 are accommodated in the key member accommodating portion 47 formed by the first notch portion 43c of the ring member 43a of the support member 43 and the second notch portion 45b of the fixing member 45. In this state, it is fixed to the fixing member 45.

しかしながら、キー部材と固定部材とが単一の部材でもよい。この場合には、前記単一の部材と受け板との間にリング部材を挟み込んだ状態で、前記単一部材を前記受け板に固定すればよい。なお、この場合でも、回転軸の回転による前記リング部材の回転を抑制するために、前記単一部材によって前記リング部材を回転不能に指示する必要がある。例えば、前記単一部材は、前記リング部材の接触面に接触し且つ前記回転軸の軸線方向に見て前記回転軸の回転方向に対して交差する方向に延びる面を有する。   However, the key member and the fixing member may be a single member. In this case, the single member may be fixed to the receiving plate with the ring member sandwiched between the single member and the receiving plate. In addition, even in this case, in order to suppress the rotation of the ring member due to the rotation of the rotation shaft, it is necessary to indicate that the ring member cannot be rotated by the single member. For example, the single member has a surface that contacts the contact surface of the ring member and extends in a direction crossing the rotation direction of the rotation shaft when viewed in the axial direction of the rotation shaft.

前記実施形態では、一対のキー部材４４を用いてリング部材４３ａの回転を抑制する。しかしながら、１つまたは３つ以上のキー部材によって、リング部材の回転を抑制してもよい。   In the embodiment, the rotation of the ring member 43a is suppressed by using the pair of key members 44. However, the rotation of the ring member may be suppressed by one or three or more key members.

また、リング部材の回転を抑制する構成は、上述のようなキー部材を用いる構成に限定されない。すなわち、前記リング部材の回転を抑制する構成は、回転軸が回転した際に前記リング部材の回転を抑制可能な構成であれば、どのような構成でもよい。   Further, the configuration for suppressing the rotation of the ring member is not limited to the configuration using the key member as described above. That is, the configuration for suppressing the rotation of the ring member may be any configuration as long as the rotation of the ring member can be suppressed when the rotation shaft rotates.

前記実施形態では、回転部４１は、回転軸４２よりも径が大きい円柱状である。しかしながら、回転部は、回転軸と同じ径を有してもよいし、前記回転軸よりも小さい径を有してもよい。   In the above embodiment, the rotating part 41 has a columnar shape having a larger diameter than the rotating shaft 42. However, the rotating part may have the same diameter as the rotating shaft, or may have a smaller diameter than the rotating shaft.

前記実施形態では、樹脂成形品Ｍは、円環状の部材である。しかしながら、樹脂成形品は、回転部の切断部によって、ゲート成形部を分離可能な形状であれば、どのような形状を有してもよい。   In the embodiment, the resin molded product M is an annular member. However, the resin molded product may have any shape as long as the gate molded portion can be separated by the cut portion of the rotating portion.

本発明は、樹脂を用いて射出成形した後に、非製品部を樹脂成形品から分離させる射出成形用金型に利用可能である。   INDUSTRIAL APPLICABILITY The present invention is applicable to an injection mold for separating a non-product part from a resin molded product after injection molding using a resin.

１ 射出成形用金型
１ａ キャビティ
１０ 固定部
１１ 固定型
１２ 固定型取付板
１２ａ 凹部
２０ 可動部
２１ 可動型
２１ａ 貫通穴
２２ 可動型取付板
２２ａ 凹部
２３ 受け板
２３ａ 凹部
２５ 移動部材
３０ スプルー
４０ 回転機構
４１ 回転部
４１ａ 取付凹部
４１ｂ ランナ
４１ｃ ゲート
４１ｄ 切断部
４２ 回転軸
４２ａ 溝部
４３ 支持部材
４３ａ リング部材（支持本体部）
４３ｂ 回転支持部材
４３ｃ 第１切り欠き部
４３ｄ 段差部
４３ｅ 接触面
４４ キー部材（回転抑制部材）
４５ 固定部材
４５ａ 貫通穴
４５ｂ 第２切り欠き部
４５ｃ 側面
４６ 接続部材
４６ａ 取付部
４７ キー部材収容部
Ｍ 樹脂成形品
Ｇ ゲート成形部
Ｒ ランナ成形部 DESCRIPTION OF SYMBOLS 1 Injection molding die 1a Cavity 10 Fixed part 11 Fixed die 12 Fixed die mounting plate 12a Depression 20 Movable part 21 Movable die 21a Through hole 22 Movable die mounting plate 22a Depression 23 Receiving plate 23a Depression 25 Moving member 30 Sprue 40 Rotating mechanism 41 rotating part 41a mounting concave part 41b runner 41c gate 41d cutting part 42 rotating shaft 42a groove part 43 supporting member 43a ring member (supporting body part)
43b Rotation support member 43c First notch portion 43d Step portion 43e Contact surface 44 Key member (rotation suppression member)
45 Fixing member 45a Through hole 45b Second notch 45c Side surface 46 Connecting member 46a Attachment part 47 Key member accommodation part M Resin molded product G Gate molding part R Runner molding part

Claims (7)

固定型と、
前記固定型に対して型開き方向及び型締め方向に移動可能で、前記固定型との間に溶融樹脂が注入されるキャビティを構成する可動型と、
外表面に軸線を中心として螺旋状に延びる溝部を有し、前記可動型を厚み方向に貫通し且つ前記可動型に前記軸線を中心として回転可能に支持された回転軸と、
前記キャビティ内に位置する切断部を有し、前記回転軸の軸線方向における前記キャビティ側の一端部に接続される回転部と、
前記回転軸の前記溝部内に位置し、前記回転軸を、前記軸線を中心として回転可能に支持する回転支持部材と、内周側で前記回転支持部材を回転可能に保持し、且つ、外周側に前記回転軸の軸線方向に見て前記回転軸の回転方向に対して交差する方向に延びる接触面を有する筒状の支持本体部と、を有する支持部材と、
前記支持本体部が固定され、前記可動型を挟んで前記固定型とは反対側に位置し且つ前記可動型に対して前記回転軸の軸線方向に移動可能な移動部材と、
前記支持本体部の前記接触面と接触した状態で、前記支持本体部を前記移動部材に対して前記回転軸の回転方向に回転不能に支持するとともに、前記移動部材に固定される回転抑制部材と、
を有する、射出成形用金型。 Fixed type,
A movable mold that is movable in the mold opening direction and the mold clamping direction with respect to the fixed mold, and forms a cavity in which a molten resin is injected between the fixed mold and the movable mold.
A rotating shaft having a groove extending spirally around the axis on the outer surface, penetrating the movable mold in the thickness direction, and supported rotatably around the axis by the movable mold;
A rotating portion having a cutting portion located in the cavity, and being connected to one end portion on the cavity side in the axial direction of the rotating shaft;
A rotation support member that is located in the groove of the rotation shaft and rotatably supports the rotation shaft around the axis, and rotatably holds the rotation support member on the inner peripheral side, and A support member having a cylindrical support main body having a contact surface extending in a direction intersecting with the rotation direction of the rotation shaft when viewed in the axial direction of the rotation shaft;
A movable member to which the supporting body is fixed, the movable member being located on the opposite side to the fixed mold with respect to the movable mold and movable in the axial direction of the rotating shaft with respect to the movable mold;
In a state in which the support body is in contact with the contact surface of the support main body, the support main body is non-rotatably supported in the rotation direction of the rotation shaft with respect to the moving member, and a rotation suppressing member fixed to the moving member. ,
A mold for injection molding. 請求項１に記載の射出成形用金型において、
前記接触面は、前記支持本体部の外周側における軸線方向の一部に位置し、
前記回転抑制部材は、前記支持本体部を、前記移動部材に対して前記回転軸の回転方向及び軸線方向に固定する、射出成形用金型。 The injection mold according to claim 1,
The contact surface is located at a part in the axial direction on the outer peripheral side of the support body,
The injection molding die, wherein the rotation suppressing member fixes the support main body to the moving member in the rotation direction and the axial direction of the rotation shaft. 請求項１または２に記載の射出成形用金型において、
前記移動部材は、前記回転抑制部材の一部を収容可能な凹部を有し、
前記回転抑制部材は、前記支持本体部の前記接触面に接触し且つ前記凹部の側面に接触した状態で、前記支持本体部を前記移動部材に固定する、射出成形用金型。 The injection mold according to claim 1 or 2,
The moving member has a recess capable of accommodating a part of the rotation suppressing member,
The injection molding die, wherein the rotation suppressing member fixes the support main body portion to the moving member in a state of being in contact with the contact surface of the support main body portion and the side surface of the concave portion. 請求項１から３のいずれか一つに記載の射出成形用金型において、
前記支持本体部は、外周側に前記接触面を複数有し、
前記複数の接触面にそれぞれ接触する前記回転抑制部材を複数有する、射出成形用金型。 The injection mold according to any one of claims 1 to 3,
The support body has a plurality of the contact surfaces on an outer peripheral side,
An injection molding die having a plurality of the rotation suppressing members that respectively contact the plurality of contact surfaces. 請求項４に記載の射出成形用金型において、
前記支持本体部は、前記軸線方向に見て、前記軸線を挟んで前記支持本体部の両側に前記接触面を一対有し、
前記一対の接触面にそれぞれ接触する前記回転抑制部材を一対有する、射出成形用金型。 The injection mold according to claim 4,
The support body portion has a pair of the contact surfaces on both sides of the support body portion with respect to the axis, as viewed in the axial direction,
An injection molding die having a pair of the rotation suppressing members that respectively contact the pair of contact surfaces. 請求項１から５のいずれか一つに記載の射出成形用金型において、
前記接触面は、前記支持本体部を前記回転軸の軸線方向に見て、前記回転軸の回転方向に対して交差する方向に延びる平面であり、
前記回転抑制部材は、前記接触面と接触する平面を有する、
射出成形用金型。 The injection mold according to any one of claims 1 to 5,
The contact surface is a plane that extends in a direction intersecting the rotation direction of the rotation shaft when the support main body is viewed in the axial direction of the rotation shaft,
The rotation suppressing member has a plane that contacts the contact surface,
Mold for injection molding. 請求項１から６のいずれか一つに記載の射出成形用金型において、
前記回転部は、前記回転軸よりも径が大きい円柱状であり、
前記切断部は、前記回転部の外周部に位置する、射出成形用金型。 The injection mold according to any one of claims 1 to 6,
The rotating portion has a cylindrical shape having a diameter larger than the rotating shaft,
The injection molding die, wherein the cutting portion is located on an outer peripheral portion of the rotating portion.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114043676A (en) * 2021-11-30 2022-02-15 广东烨嘉光电科技股份有限公司 Injection mold for producing biconvex lens
CN114701115A (en) * 2022-03-31 2022-07-05 南通制桶厂有限公司 Processingequipment of plastic drum production usefulness

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642139U (en) * 1992-11-20 1994-06-03 矢崎化工株式会社 Injection mold
JP2011218628A (en) * 2010-04-07 2011-11-04 Misumi Corp Structure for mounting turning gate pin

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2670089B2 (en) * 1988-06-09 1997-10-29 株式会社新興セルビック Mold for resin molding
JPH06102349B2 (en) * 1991-01-08 1994-12-14 株式会社日本製鋼所 Rotary injection mold and gate cutting method
JPH07205212A (en) * 1994-01-14 1995-08-08 Honda Motor Co Ltd Gate cutter for mold
JP3713452B2 (en) * 2001-09-14 2005-11-09 高雄機械株式会社 Injection mold
CN203831733U (en) * 2014-04-25 2014-09-17 杭州飞尔达精密模具有限公司 Automatic cutting-off mechanism used for injection mold side gate
CN207172645U (en) * 2017-08-22 2018-04-03 东莞市誉鑫塑胶模具有限公司 A kind of simple pattern inscribe mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642139U (en) * 1992-11-20 1994-06-03 矢崎化工株式会社 Injection mold
JP2011218628A (en) * 2010-04-07 2011-11-04 Misumi Corp Structure for mounting turning gate pin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114043676A (en) * 2021-11-30 2022-02-15 广东烨嘉光电科技股份有限公司 Injection mold for producing biconvex lens
CN114701115A (en) * 2022-03-31 2022-07-05 南通制桶厂有限公司 Processingequipment of plastic drum production usefulness
CN114701115B (en) * 2022-03-31 2024-05-31 山东儒亿包装科技股份有限公司 Processing device for plastic bucket production

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