JP2017124526A - Injection molding mold and control method of injection molding mold - Google Patents

Injection molding mold and control method of injection molding mold Download PDF

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JP2017124526A
JP2017124526A JP2016004435A JP2016004435A JP2017124526A JP 2017124526 A JP2017124526 A JP 2017124526A JP 2016004435 A JP2016004435 A JP 2016004435A JP 2016004435 A JP2016004435 A JP 2016004435A JP 2017124526 A JP2017124526 A JP 2017124526A
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temperature
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cavity piece
cavity
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JP6744097B2 (en
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橋本　将臣
Masaomi Hashimoto
将臣 橋本
皓太郎 高石
Kotaro Takaishi
皓太郎 高石
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Enplas Corp
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Enplas Corp
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Abstract

PROBLEM TO BE SOLVED: To achieve injection molding of a resin material whose injection molding temperature is high, and shorten an injection molding cycle.SOLUTION: An injection molding mold 1 comprises: cavity pieces 5, 37 comprising cavity forming parts 16, 17; and mold bodies 6, 38 to which the cavity pieces 5, 37 are attached. The cavity pieces 5, 37 comprises first temperature adjustment channels 13, 44 in which a fluid flows, and first resistance heating heaters 15, 46 which generate heat by energization. Temperature of the mold bodies 6, 38 are maintained to take-out temperature of a molding by a fluid which flows in second temperature adjustment channels 12, 43. A heat insulation material 7 is interposed between the cavity pieces 5, 37 and the mold bodies 6, 38. High temperature water and low temperature water are alternately flowed to the first temperature adjustment channels 13, 44. The cavity pieces 5, 37 are heated to temperature equal to or higher than the take-out temperature of the molding by the high temperature water, and is cooled to the take-out temperature of the molding by the low temperature water.SELECTED DRAWING: Figure 1

Description

この発明は、射出成形工程に応じて金型温度を調節できるようにした射出成形金型及びその制御方法に関するものである。   The present invention relates to an injection mold in which the mold temperature can be adjusted in accordance with an injection molding process, and a control method therefor.

（第１従来技術）
従来から、金型温度を制御して樹脂を射出成形する技術が知られている。例えば、第１従来技術は、金型に媒体流路を形成し、金型の型開きから射出充填が完了するまで媒体流路に熱水を供給し、射出充填の完了から型開きまで媒体流路に冷水を供給することにより、生産性を向上させると共に、射出成形品の寸法精度を向上させるようになっている（特許文献１参照）。 (First prior art)
2. Description of the Related Art Conventionally, a technique for injection molding a resin by controlling a mold temperature is known. For example, in the first prior art, a medium flow path is formed in a mold, hot water is supplied to the medium flow path from the mold opening until the injection filling is completed, and the medium flow is completed from the completion of injection filling to the mold opening. By supplying cold water to the road, productivity is improved and dimensional accuracy of the injection molded product is improved (see Patent Document 1).

（第２従来技術）
また、図２１に示す第２従来技術に係る金型１１１は、キャビティ１１２の近傍にキャビティ部用カードリッジヒータ１１３を設置し、金型１１１の外周部に金型本体用カートリッジヒータ１１４を設置し、この金型本体用カートリッジヒータ１１４よりも外側に冷却水用配管１１５を設置して、成形サイクルを短縮し、低コストで高精度の成形品を製造するようになっている（特許文献２参照）。 (Second conventional technology)
In the mold 111 according to the second prior art shown in FIG. 21, a cavity cartridge heater 113 is installed in the vicinity of the cavity 112, and a mold body cartridge heater 114 is installed in the outer periphery of the mold 111. The cooling water pipe 115 is installed outside the mold body cartridge heater 114 to shorten the molding cycle and to manufacture a highly accurate molded product at low cost (see Patent Document 2). ).

特開昭６０−５４８２８号公報JP-A-60-54828 特開２００２−２４８６２５号公報JP 2002-248625 A

しかしながら、第１従来技術は、射出成形温度が高いスーパーエンジニアリングプラスチック（ＰＥＥＫ、ＰＰＳ、ＰＥＩ等）を射出成形する場合に、金型温度を媒体流路内の熱水だけで射出成形に適した温度（例えば、３００℃）まで上昇させることが困難であった。   However, according to the first prior art, when super engineering plastics (PEEK, PPS, PEI, etc.) having a high injection molding temperature are injection molded, the mold temperature is a temperature suitable for injection molding only with hot water in the medium flow path. It was difficult to raise the temperature (for example, 300 ° C.).

また、第２従来技術に係る金型１１１は、キャビティ部用カートリッジヒータ１１３がキャビティ１１２の温度をスーパーエンジニアリングプラスチックの成形に適した温度（例えば、３００℃）まで上昇させることができるものの、外表面の温度が通電開始から所望温度（例えば、３００℃）まで上昇するのに時間がかかっていた。また、第２従来技術に係る金型１１１は、冷却水用配管１１５がキャビティ１１２から離れた位置にあるため、キャビティ１１２の冷却に時間がかかっていた。したがって、第２従来技術に係る金型１１１は、成形サイクルの短縮が不十分であった。   Further, the mold 111 according to the second prior art has an outer surface, although the cavity cartridge heater 113 can increase the temperature of the cavity 112 to a temperature suitable for super engineering plastic molding (for example, 300 ° C.). It took a long time for the temperature to rise from the start of energization to the desired temperature (for example, 300 ° C.). Further, in the mold 111 according to the second conventional technique, since the cooling water pipe 115 is located away from the cavity 112, it takes time to cool the cavity 112. Therefore, the mold 111 according to the second prior art has not sufficiently shortened the molding cycle.

そこで、本発明は、射出成形温度が高い樹脂材料の射出成形を可能にすると共に、射出成形サイクルを短縮することを目的とする。   Accordingly, an object of the present invention is to enable injection molding of a resin material having a high injection molding temperature and to shorten the injection molding cycle.

本発明は、キャビティ４内に溶融樹脂を射出する射出成形金型１に関するものである。本発明の射出成形金型１は、キャビティ形成部分１６，１７を有するキャビティ駒５、３７と、このキャビティ駒５，３７が取り付けられる金型本体６，３８とを有している。前記キャビティ駒５，３７は、流体が流動する第１温度調節流路１３，４４と、通電により発熱する第１抵抗加熱ヒータ１５，４６とが配置されている。前記金型本体６，３８は、流体が流動する第２温度調節流路１２，４３と通電により発熱する第２抵抗加熱ヒータ１４，４５の少なくとも一つが配置され、前記第２温度調節流路１２，４３を流動する流体と前記第２抵抗加熱ヒータ１４，４５の少なくとも一つによって成形品の取り出し温度に維持される。そして、前記キャビティ駒５，３７と前記金型本体６，３８との間には、断熱材７が介装される。また、前記第１温度調節流路１３，４４及び前記第１抵抗加熱ヒータ１５，４６の少なくとも一部は、前記キャビティ形成部分１６，１７の近傍に配置される。また、前記第１温度調節流路１３，４４は、第１の流体と第２の流体が交互に流動させられる。そして、前記第１の流体は、前記キャビティ駒５，３７を成形品の取り出し温度以上の温度まで加熱する高温水又は蒸気である。また、前記第２の流体は、前記キャビティ駒５，３７を成形品の取り出し温度まで冷却する低温水である。   The present invention relates to an injection mold 1 for injecting a molten resin into a cavity 4. The injection mold 1 of the present invention includes cavity pieces 5 and 37 having cavity forming portions 16 and 17 and mold bodies 6 and 38 to which the cavity pieces 5 and 37 are attached. The cavity pieces 5 and 37 are provided with first temperature control channels 13 and 44 through which fluid flows and first resistance heaters 15 and 46 that generate heat when energized. The mold bodies 6 and 38 are provided with at least one of second temperature control channels 12 and 43 through which a fluid flows and second resistance heaters 14 and 45 that generate heat when energized. , 43 and the at least one of the second resistance heaters 14, 45 are maintained at the temperature at which the molded product is taken out. A heat insulating material 7 is interposed between the cavity pieces 5 and 37 and the mold main bodies 6 and 38. Further, at least a part of the first temperature control flow paths 13 and 44 and the first resistance heaters 15 and 46 are disposed in the vicinity of the cavity forming portions 16 and 17. In addition, the first temperature control flow paths 13 and 44 allow the first fluid and the second fluid to flow alternately. The first fluid is high-temperature water or steam that heats the cavity pieces 5 and 37 to a temperature equal to or higher than the temperature at which the molded product is taken out. The second fluid is low-temperature water that cools the cavity pieces 5 and 37 to the temperature for taking out the molded product.

また、本発明は、キャビティ４内に溶融樹脂を射出する射出成形金型１の制御方法に関するものである。この発明において、前記射出成形金型１は、キャビティ形成部分１６，１７を有するキャビティ駒５，３７と、このキャビティ駒５，３７が取り付けられる金型本体６，３８とを有している。前記キャビティ駒５，３７は、流体が流動する第１温度調節流路１３，４４と、通電により発熱する第１抵抗加熱ヒータ１５，４６とが配置されている。前記金型本体６，３８は、流体が流動する第２温度調節流路１２，４３と通電により発熱する第２抵抗加熱ヒータ１４，４５の少なくとも一つが配置され、前記第２温度調節流路１２，４３を流動する流体と前記第２抵抗加熱ヒータ１４，４５の少なくとも一つによって成形品の取り出し温度に維持される。そして、前記キャビティ駒５，３７と前記金型本体６，３８との間には、断熱材７が介装される。また、前記第１温度調節流路１３，４４及び前記第１抵抗加熱ヒータ１５，４６の少なくとも一部は、前記キャビティ形成部分１６，１７の近傍に配置される。前記第１温度調節流路１３，４４は、第１の流体と第２の流体が交互に流動させられる。前記第１の流体は、前記キャビティ駒５，３７を成形品の取り出し温度以上の温度まで加熱する高温水又は蒸気であり、前記第１の抵抗加熱ヒータ１５，４６が通電されると同時に前記第１温度調節流路１３，４４を流動させられ、前記キャビティ形成部分１６，１７の近傍の温度が成形品の取り出し温度以上の第１の設定温度に到達すると前記第１温度調節流路１３，４４から排出される。前記第１の抵抗加熱ヒータ１５，４６は、前記キャビティ形成部分１６，１７の近傍の温度が前記第１の設定温度以上の温度で且つ前記溶融樹脂の射出成形に適した温度である第２の設定温度に到達すると通電が遮断される。前記第２の流体は、前記キャビティ駒５，３７を成形品の取り出し温度まで冷却する低温水であり、前記第１の抵抗加熱ヒータ１５，４６への通電が遮断された後に前記第１温度調節流路１３，４４を流動させられ、前記キャビティ形成部分１６，１７の近傍の温度が前記成形品の取り出し温度まで低下すると前記第１温度調節流路１３，４４から排出される。   The present invention also relates to a method for controlling the injection mold 1 for injecting molten resin into the cavity 4. In the present invention, the injection mold 1 includes cavity pieces 5 and 37 having cavity forming portions 16 and 17 and mold bodies 6 and 38 to which the cavity pieces 5 and 37 are attached. The cavity pieces 5 and 37 are provided with first temperature control channels 13 and 44 through which fluid flows and first resistance heaters 15 and 46 that generate heat when energized. The mold bodies 6 and 38 are provided with at least one of second temperature control channels 12 and 43 through which a fluid flows and second resistance heaters 14 and 45 that generate heat when energized. , 43 and the at least one of the second resistance heaters 14, 45 are maintained at the temperature at which the molded product is taken out. A heat insulating material 7 is interposed between the cavity pieces 5 and 37 and the mold main bodies 6 and 38. Further, at least a part of the first temperature control flow paths 13 and 44 and the first resistance heaters 15 and 46 are disposed in the vicinity of the cavity forming portions 16 and 17. In the first temperature control channels 13 and 44, the first fluid and the second fluid are alternately flowed. The first fluid is high-temperature water or steam that heats the cavity pieces 5 and 37 to a temperature equal to or higher than the temperature at which the molded product is taken out, and the first resistance heaters 15 and 46 are energized at the same time. When the temperature in the vicinity of the cavity forming portions 16 and 17 reaches the first set temperature that is equal to or higher than the temperature for taking out the molded product, the first temperature adjusting channels 13 and 44 are flowed through the first temperature adjusting channels 13 and 44. Discharged from. The first resistance heaters 15 and 46 are second temperatures in which the temperature in the vicinity of the cavity forming portions 16 and 17 is equal to or higher than the first set temperature and suitable for injection molding of the molten resin. When the set temperature is reached, the power is cut off. The second fluid is low-temperature water that cools the cavity pieces 5 and 37 to the temperature of taking out the molded product, and the first temperature adjustment is performed after the power supply to the first resistance heaters 15 and 46 is cut off. When the flow paths 13 and 44 are made to flow and the temperature in the vicinity of the cavity forming portions 16 and 17 is lowered to the temperature at which the molded product is taken out, the first temperature control flow paths 13 and 44 are discharged.

本発明によれば、金型本体と断熱材で仕切られたキャビティ駒が高温水又は蒸気で加熱されると共に抵抗加熱ヒータで加熱されるため、キャビティ駒が射出成形温度が高い樹脂材料の射出成形を可能する温度まで急速に加熱される。また、本発明によれば、金型本体と断熱材で仕切られたキャビティ駒のみを低温水で冷却できるので、キャビティ駒のキャビティ形成部分を効率的に冷却することが可能になる。その結果、本発明によれば、射出成形サイクルを短縮できる。   According to the present invention, since the cavity piece partitioned by the mold body and the heat insulating material is heated with high-temperature water or steam and heated with a resistance heater, the cavity piece is injection molded of a resin material having a high injection molding temperature. It is heated rapidly to a temperature that allows Further, according to the present invention, only the cavity piece partitioned by the mold body and the heat insulating material can be cooled with the low temperature water, so that the cavity forming portion of the cavity piece can be efficiently cooled. As a result, according to the present invention, the injection molding cycle can be shortened.

本発明の第１実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 1st Embodiment of this invention. 図２（ａ）が固定側キャビティ駒の平面図であり、図２（ｂ）が固定側キャビティ駒の正面図であり、図２（ｃ）が図２（ａ）のＡ１−Ａ１線に沿って切断して示す固定側キャビティ駒の断面図である。2A is a plan view of the fixed-side cavity piece, FIG. 2B is a front view of the fixed-side cavity piece, and FIG. 2C is cut along line A1-A1 in FIG. 2A. It is sectional drawing of the fixed side cavity piece shown. 図３（ａ）が第１固定側温度調節流路の平面図であり、図３（ｂ）が第１固定側温度調節流路の正面図であり、図３（ｃ）が図３（ａ）のＡ２−Ａ２線に沿って切断して示す第１固定側温度調節流路の断面図であり、図３（ｄ）が第１固定側温度調節流路の斜視図である。FIG. 3A is a plan view of the first fixed-side temperature control channel, FIG. 3B is a front view of the first fixed-side temperature control channel, and FIG. 3C is FIG. ) Is a cross-sectional view of the first fixed-side temperature control channel cut along the line A2-A2, and FIG. 3D is a perspective view of the first fixed-side temperature control channel. 図４（ａ）が第１固定側抵抗加熱ヒータの平面図であり、図４（ｂ）が第１固定側抵抗加熱ヒータの正面図であり、図４（ｃ）が図４（ａ）のＡ３−Ａ３線に沿って切断して示す第１固定側抵抗加熱ヒータの断面図である。4 (a) is a plan view of the first fixed-side resistance heater, FIG. 4 (b) is a front view of the first fixed-side resistance heater, and FIG. 4 (c) is that of FIG. 4 (a). It is sectional drawing of the 1st fixed side resistance heater shown cut along A3-A3 line. 本発明の第１実施形態に係る射出成形金型の制御方法を説明するための図であり、固定側キャビティ駒及び可動側キャビティ駒の温度と射出成形時間との関係を示す図である。It is a figure for demonstrating the control method of the injection mold which concerns on 1st Embodiment of this invention, and is a figure which shows the relationship between the temperature of a fixed side cavity piece and a movable side cavity piece, and injection molding time. 本発明の第１実施形態に係る射出成形金型の制御方法を説明するための図であり、射出成形金型の作動状態を示すタイムチャート図である。It is a figure for demonstrating the control method of the injection mold which concerns on 1st Embodiment of this invention, and is a time chart figure which shows the operating state of an injection mold. 本発明の第１実施形態の変形例１を示す図であり、固定側キャビティ駒の変形例を示す図である。It is a figure which shows the modification 1 of 1st Embodiment of this invention, and is a figure which shows the modification of a stationary-side cavity piece. 図８（ａ）が第１プレートの正面図であり、図８（ｂ）が第１プレートの裏面図である。FIG. 8A is a front view of the first plate, and FIG. 8B is a back view of the first plate. 図９（ａ）が第２、４、６プレートの正面図であり、図９（ｂ）が第２、４、６プレートの裏面図である。FIG. 9A is a front view of the second, fourth, and sixth plates, and FIG. 9B is a rear view of the second, fourth, and sixth plates. 図１０（ａ）が第３、５、７プレートの正面図であり、図９（ｂ）が第３、５、７プレートの裏面図である。FIG. 10A is a front view of the third, fifth and seventh plates, and FIG. 9B is a rear view of the third, fifth and seventh plates. 図１１（ａ）が第８プレートの平面図であり、図１１（ｂ）が第８プレートの正面図であり、図１１（ｃ）が第８プレートの裏面図である。FIG. 11A is a plan view of the eighth plate, FIG. 11B is a front view of the eighth plate, and FIG. 11C is a rear view of the eighth plate. 本発明の第２実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る射出成形金型の第１固定側温度調節流路及び第１可動側温度調節流路を示す図であり、図１３（ａ）が第１固定側温度調節流路及び第１可動側温度調節流路の平面図、図１３（ｂ）が第１固定側温度調節流路及び第１可動側温度調節流路の正面図である。It is a figure which shows the 1st fixed side temperature control flow path and the 1st movable side temperature control flow path of the injection mold which concern on 2nd Embodiment of this invention, Fig.13 (a) is a 1st fixed side temperature control flow. FIG. 13B is a front view of the first fixed side temperature control channel and the first movable side temperature control channel. 本発明の第３実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 4th Embodiment of this invention. 本発明の第５実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 5th Embodiment of this invention. 本発明の第６実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 6th Embodiment of this invention. 本発明の第７実施形態に係る射出成形金型の断面図である。It is sectional drawing of the injection mold which concerns on 7th Embodiment of this invention. 本発明の第８実施形態に係る射出成形金型を説明するための図である。図１９（ａ）は、キャビティ駒の外観斜視図であり、内部の第１温度調節流路及び第１抵抗加熱ヒータを透視できるように描いたキャビティ駒の外観斜視図である。図１９（ｂ）は、キャビティ駒を断熱材を介して金型本体に固定した状態を示す図であり、キャビティ駒を正面側から見た図である。It is a figure for demonstrating the injection mold which concerns on 8th Embodiment of this invention. FIG. 19A is an external perspective view of the cavity piece, and is an external perspective view of the cavity piece drawn so that the internal first temperature control flow path and the first resistance heater can be seen through. FIG. 19B is a diagram illustrating a state in which the cavity piece is fixed to the mold main body via a heat insulating material, and is a view of the cavity piece as viewed from the front side. 本発明の第９実施形態に係る射出成形金型を説明するための図であり、第８実施形態に係る射出成形金型の変形例を示す図である。図２０（ａ）は、キャビティ駒の外観斜視図であり、内部の第１温度調節流路及び第１抵抗加熱ヒータを透視できるように描いたキャビティ駒の外観斜視図である。図２０（ｂ）は、キャビティ駒を断熱材を介して金型本体に固定した状態を示す図であり、キャビティ駒を正面側から見た図である。It is a figure for demonstrating the injection mold which concerns on 9th Embodiment of this invention, and is a figure which shows the modification of the injection mold which concerns on 8th Embodiment. FIG. 20A is an external perspective view of the cavity piece, and is an external perspective view of the cavity piece drawn so that the internal first temperature control flow path and the first resistance heater can be seen through. FIG. 20B is a diagram showing a state in which the cavity piece is fixed to the mold main body via a heat insulating material, and is a view of the cavity piece as seen from the front side. 従来の射出成形金型を示す図である。It is a figure which shows the conventional injection mold.

以下、本発明の実施形態を図面に基づき詳述する。
［第１実施形態］
図１は、本発明の第１実施形態に係る射出成形金型１の断面図である。この図１に示すように、射出成形金型１は、固定側金型２と可動側金型３に大別される。そして、この射出成形金型１は、型締め時に、固定側金型２と可動側金型３の突き合わせ面側にキャビティ４が形成され、このキャビティ４内に図示しないゲートから溶融樹脂が射出され、キャビティ４の形状を転写したような成形品が製造されるようになっている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a cross-sectional view of an injection mold 1 according to the first embodiment of the present invention. As shown in FIG. 1, the injection mold 1 is roughly divided into a fixed mold 2 and a movable mold 3. In the injection mold 1, when the mold is clamped, a cavity 4 is formed on the abutting surface side of the fixed mold 2 and the movable mold 3, and molten resin is injected into the cavity 4 from a gate (not shown). A molded product in which the shape of the cavity 4 is transferred is manufactured.

（固定側金型）
図１に示すように、固定側金型２は、固定側キャビティ駒５と固定側金型本体６とを有している。固定側金型本体６は、固定側キャビティ駒５が断熱材７（例えば、日光化成株式会社製の商品名「ロスナボード」）を介して取り付けられる第１固定側金型本体８と、固定側キャビティ駒５を収容するキャビティ駒収容穴１０が形成された第２固定側金型本体１１と、を有している。第１及び第２固定側金型本体８，１１は、固定側金型本体６の温度を成形品の取り出し温度に維持するために、流体（熱水又は蒸気）を流動させる固定側温度調節流路（１２）が形成されている。この固定側温度調節流路（１２）は、固定側キャビティ駒５の第１固定側温度調節流路１３と区別するために、第２固定側温度調節流路１２と呼称する。なお、第１及び第２固定側金型本体８，１１は、第２固定側温度調節流路１２に代えて、カートリッジヒータ、シーズヒータ等の抵抗加熱ヒータ（１４）を設置してもよい。この第１及び第２固定側金型本体８，１１に設置する抵抗加熱ヒータ（１４）は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ１５と区別するために、第２固定側抵抗加熱ヒータ１４と呼称する。また、第１及び第２固定側金型本体８，１１は、第２固定側温度調節流路１２と第２固定側抵抗加熱ヒータ１４とを併用してもよい。 (Fixed side mold)
As shown in FIG. 1, the fixed mold 2 has a fixed cavity piece 5 and a fixed mold body 6. The fixed-side mold body 6 includes a first fixed-side mold body 8 to which the fixed-side cavity piece 5 is attached via a heat insulating material 7 (for example, a product name “Rossna Board” manufactured by Nikko Kasei Co., Ltd.), and a fixed-side cavity And a second fixed-side mold body 11 in which a cavity piece accommodation hole 10 for accommodating the piece 5 is formed. The first and second fixed-side mold bodies 8 and 11 are fixed-side temperature-adjusted flows that allow fluid (hot water or steam) to flow in order to maintain the temperature of the fixed-side mold body 6 at the temperature for taking out the molded product. A path (12) is formed. This fixed side temperature control channel (12) is referred to as a second fixed side temperature control channel 12 in order to distinguish it from the first fixed side temperature control channel 13 of the fixed side cavity piece 5. The first and second fixed-side mold bodies 8 and 11 may be provided with a resistance heater (14) such as a cartridge heater or a sheathed heater in place of the second fixed-side temperature control channel 12. In order to distinguish the resistance heater (14) installed in the first and second fixed side mold bodies 8 and 11 from the first fixed side resistance heater 15 of the fixed side cavity piece 5, the second fixed side resistance This is referred to as a heater 14. In addition, the first and second fixed-side mold bodies 8 and 11 may use the second fixed-side temperature control flow path 12 and the second fixed-side resistance heater 14 in combination.

また、図１及び図２に示すように、固定側キャビティ駒５は、略円柱形状に形作られ、中心軸ＣＬに沿った一端側に固定側キャビティ形成部分１６が形成されている。この固定側キャビティ形成部分１６は、可動側キャビティ形成部分１７と共にキャビティ４を形成するものであり、固定側キャビティ駒５の一端面に形成された凹所である。また、固定側キャビティ駒５は、中心軸ＣＬに沿った他端側に、径方向外方側へ鍔状に張り出すフランジ部１８が形成されている。そして、この固定側キャビティ駒５は、その中心軸ＣＬに沿った他端側が円板状の断熱材７を介して第１固定側金型本体８に支持され、フランジ部１８が第２固定側金型本体１１の固定側キャビティ駒収容穴１０のストッパ面２０に押し付けられ、固定側金型本体６に固定されるようになっている。このような固定側キャビティ駒５は、断熱材７で第１固定側金型本体８との間の熱伝導が遮断されるようになっている。   As shown in FIGS. 1 and 2, the fixed-side cavity piece 5 is formed in a substantially cylindrical shape, and a fixed-side cavity forming portion 16 is formed on one end side along the central axis CL. The fixed-side cavity forming portion 16 forms the cavity 4 together with the movable-side cavity forming portion 17 and is a recess formed on one end surface of the fixed-side cavity piece 5. In addition, the fixed cavity piece 5 is formed with a flange portion 18 on the other end side along the central axis CL that projects in a hook shape radially outward. The other end of the fixed-side cavity piece 5 along the central axis CL is supported by the first fixed-side mold body 8 via the disk-shaped heat insulating material 7, and the flange portion 18 is connected to the second fixed side. It is pressed against the stopper surface 20 of the fixed-side cavity piece receiving hole 10 of the mold body 11 and is fixed to the fixed-side mold body 6. The fixed-side cavity piece 5 is configured such that the heat conduction between the fixed-side cavity piece 5 and the first fixed-side mold body 8 is blocked by the heat insulating material 7.

また、図１乃至図３に示すように、固定側キャビティ駒５は、その内部に第１固定側温度調節流路１３が形成されている。この第１固定側温度調節流路１３は、固定側キャビティ駒５の内部に一筆書き状に連続するように形成された二条の螺旋状流路２１を有し、その二条の螺旋状流路２１の一端が流体導入路２２に接続され、その二条の螺旋状流路２１の他端が流体排出路２３に接続されている。そして、この第１固定側温度調節流路１３の一部は、キャビティ形成部分１６の近傍に位置している。なお、流体導入路２２及び流体排出路２３は、断熱材７及び第１固定側金型本体８を貫通して、流路切換用のバルブユニット２４に接続されている。   As shown in FIGS. 1 to 3, the fixed-side cavity piece 5 has a first fixed-side temperature control channel 13 formed therein. The first fixed-side temperature control channel 13 has two spiral channels 21 formed so as to be continuous in a single stroke in the fixed-side cavity piece 5, and the two spiral channels 21. Is connected to the fluid introduction path 22, and the other end of the two spiral flow paths 21 is connected to the fluid discharge path 23. A part of the first fixed-side temperature control flow path 13 is located in the vicinity of the cavity forming portion 16. The fluid introduction path 22 and the fluid discharge path 23 pass through the heat insulating material 7 and the first fixed-side mold body 8 and are connected to the valve unit 24 for switching the flow path.

図１乃至図３に示す第１固定側温度調節流路１３は、流路切換用のバルブユニット２４を介して第１流体供給装置２５、第２流体供給装置２６、又はコンプレッサ２７に接続されている。そして、第１固定側温度調節流路１３は、バルブユニット２４によって第１流体供給装置２５に接続された場合、第１流体供給装置２５から第１の流体が供給され、固定側キャビティ駒５を成形品の取り出し温度（Ｔ１℃）以上の温度（Ｔ２℃）まで加熱するようになっている（図５参照）。また、第１固定側温度調節流路１３は、バルブユニット２４によって第２流体供給装置２６に接続された場合、第２流体供給装置２６から第２の流体が供給され、固定側キャビティ駒５を成形品の取り出し温度（Ｔ１℃）まで冷却するようになっている（図５参照）。また、第１固定側温度調節流路１３は、バルブユニット２４によってコンプレッサ２７に接続された場合、コンプレッサ２７から圧縮空気が供給され、内部に残留する流体（第１の流体又は第２の流体）及び圧縮空気をドレンタンク２８側に排出できるようなっている。第１の流体は、第２の流体よりも温度が高い高温水又は蒸気である。第２の流体は、第１の流体よりも温度が低く、第１の流体及び第１固定側抵抗加熱ヒータ１５によって成形品の取り出し温度以上の温度（Ｔ３℃＞Ｔ２℃）に加熱された固定側キャビティ駒５を成形品の取り出し温度（Ｔ１℃）まで冷却できる低温水である（図５参照）。なお、Ｔ１℃、Ｔ２℃、及びＴ３℃は、射出成形される樹脂材料の種類に異なる。例えば、成形品の取り出し温度（Ｔ１℃）は、約６０℃〜１２０℃になる。また、第１固定側温度調節流路１３を流動した第１の流体は第１液体供給装置２５に還流され、第１固定側温度調節流路１３を流動した第２の流体は第２液体供給装置２６に還流されるようになっている。   1 to 3 is connected to a first fluid supply device 25, a second fluid supply device 26, or a compressor 27 through a valve unit 24 for switching the flow path. Yes. When the first fixed-side temperature control flow path 13 is connected to the first fluid supply device 25 by the valve unit 24, the first fluid is supplied from the first fluid supply device 25, and the fixed-side cavity piece 5 is Heating is performed to a temperature (T2 ° C.) equal to or higher than the temperature (T1 ° C.) of taking out the molded product (see FIG. 5). In addition, when the first fixed side temperature control channel 13 is connected to the second fluid supply device 26 by the valve unit 24, the second fluid is supplied from the second fluid supply device 26, and the fixed side cavity piece 5 It cools to the taking-out temperature (T1 ° C.) of the molded product (see FIG. 5). Further, when the first fixed side temperature control flow path 13 is connected to the compressor 27 by the valve unit 24, the compressed air is supplied from the compressor 27 and the fluid remaining inside (first fluid or second fluid). The compressed air can be discharged to the drain tank 28 side. The first fluid is hot water or steam having a higher temperature than the second fluid. The second fluid has a temperature lower than that of the first fluid, and is fixed by being heated to a temperature (T3 ° C.> T2 ° C.) equal to or higher than the removal temperature of the molded product by the first fluid and the first fixed resistance heater 15. It is the low temperature water which can cool the side cavity piece 5 to the taking-out temperature (T1 degreeC) of a molded article (refer FIG. 5). T1 ° C., T2 ° C., and T3 ° C. differ depending on the type of resin material to be injection-molded. For example, the removal temperature (T1 ° C.) of the molded product is about 60 ° C. to 120 ° C. The first fluid that has flowed through the first fixed-side temperature control channel 13 is returned to the first liquid supply device 25, and the second fluid that has flowed through the first fixed-side temperature control channel 13 is the second liquid supply. The apparatus 26 is configured to be refluxed.

図１、図２、及び図４に示す第１固定側抵抗加熱ヒータ１５は、フレキシブルヒータであり、固定側キャビティ駒５の外周面５ａに螺旋状に形成されたヒータ収容溝３０内に収容されている。この第１固定側抵抗加熱ヒータ１５は、スイッチ３１によって通電がオン・オフされるようになっている。そして、この第１固定側抵抗加熱ヒータ１５は、一部（先端側）が固定側キャビティ形成部分１６の近傍に位置し、第１固定側温度調節流路１３に第１の流体が流動するのと同時に通電され、固定側キャビティ駒５を成形品の取り出し温度以上の温度（Ｔ３℃）に加熱する（図５参照）。   The first fixed resistance heater 15 shown in FIGS. 1, 2, and 4 is a flexible heater, and is housed in a heater housing groove 30 formed in a spiral shape on the outer peripheral surface 5 a of the fixed side cavity piece 5. ing. The first fixed-side resistance heater 15 is turned on / off by a switch 31. And this 1st fixed side resistance heater 15 has a part (tip side) located in the vicinity of the fixed side cavity formation part 16, and the 1st fluid flows into the 1st fixed side temperature control flow path 13. At the same time, energization is performed to heat the fixed cavity piece 5 to a temperature (T3 ° C.) equal to or higher than the temperature for taking out the molded product (see FIG. 5).

図１に示すように、熱電対３２は、第１固定側金型本体８及び断熱材７を貫通し、固定側キャビティ駒５の固定側キャビティ形成部分１６の近傍まで挿入され、固定側キャビティ駒５の固定側キャビティ形成部分１６近傍の温度測定データをコントローラ３３に入力できるようになっている。コントローラ３３は、予めインストールされた制御プログラム及び熱電対３２等からの入力データに基づいて、第１流体供給装置２５、第２流体供給装置２６、コンプレッサ２７、バルブユニット２４、スイッチ３１の作動を制御するようになっている。   As shown in FIG. 1, the thermocouple 32 passes through the first fixed-side mold body 8 and the heat insulating material 7 and is inserted to the vicinity of the fixed-side cavity forming portion 16 of the fixed-side cavity piece 5. 5, temperature measurement data in the vicinity of the fixed side cavity forming portion 16 can be input to the controller 33. The controller 33 controls the operation of the first fluid supply device 25, the second fluid supply device 26, the compressor 27, the valve unit 24, and the switch 31 based on a control program installed in advance and input data from the thermocouple 32 and the like. It is supposed to be.

図１及び図２に示した固定側キャビティ駒５は、３Ｄプリンタによる金属粉末積層法を使用して形成されている。その結果、固定側キャビティ駒５は、複雑な三次元的構造の第１固定側温度調節流路１３が内部に容易且つ確実に形成されると共に、螺旋状のヒータ収容溝３０及び固定側キャビティ形成部分１６が容易且つ確実に形成される。   The fixed-side cavity piece 5 shown in FIGS. 1 and 2 is formed using a metal powder lamination method using a 3D printer. As a result, in the fixed side cavity piece 5, the first fixed side temperature control flow path 13 having a complicated three-dimensional structure is easily and reliably formed inside, and the helical heater housing groove 30 and the fixed side cavity are formed. The portion 16 is easily and reliably formed.

図１に示すように、第１固定側抵抗加熱ヒータ１５の外周側には、ステンレス鋼等の金属で形成された円筒状の遮熱体３４が嵌合されている。そして、この遮熱体３４と第２固定側金型本体１１（キャビティ駒収容穴１０の内面）との間には、隙間（空気層）３５が設けられている。そして、固定側キャビティ駒と５第２固定側金型本体１１との接触箇所は、第２固定側金型本体１１に形成されたキャビティ駒収容穴１０の小径部分３６と第２固定側金型本体１１のストッパ面２０の極限られた部分であり、固定側キャビティ駒５から第２固定側金型本体１１への熱伝導が抑えられ、固定側キャビティ駒５の熱が第２固定側金型本体１１側に逃げにくくなっている。   As shown in FIG. 1, a cylindrical heat shield 34 made of a metal such as stainless steel is fitted to the outer peripheral side of the first fixed resistance heater 15. A gap (air layer) 35 is provided between the heat shield 34 and the second fixed-side mold body 11 (the inner surface of the cavity piece accommodation hole 10). The contact points between the fixed-side cavity piece and the second fixed-side mold body 11 are the small-diameter portion 36 of the cavity piece-receiving hole 10 formed in the second fixed-side mold body 11 and the second fixed-side mold. It is a limited portion of the stopper surface 20 of the main body 11, heat conduction from the fixed side cavity piece 5 to the second fixed side mold body 11 is suppressed, and the heat of the fixed side cavity piece 5 is transferred to the second fixed side mold. It is difficult to escape to the main body 11 side.

（可動側金型）
図１に示す可動側金型３は、可動側キャビティ駒３７と可動側金型本体３８とを有している。可動側金型本体３８は、可動側キャビティ駒３７が断熱材７を介して取り付けられる第１可動側金型本体４０と、可動側キャビティ駒３７を収容するキャビティ駒収容穴４１が形成された第２可動側金型本体４２と、を有している。第１及び第２可動側金型本体４０，４２は、可動側金型本体３８の温度を成形品の取り出し温度に維持するために、流体（熱水又は蒸気）を流動させる可動側温度調節流路（４３）が形成されている。この可動側温度調節流路（４３）は、可動側キャビティ駒３７の第１可動側温度調節流路４４と区別するために、第２可動側温度調節流路４３と呼称する。なお、第１及び第２可動側金型本体４０，４２は、第２可動側温度調節流路４３に代えて、カートリッジヒータ、シーズヒータ等の可動側抵抗加熱ヒータ（４５）を設置してもよい。この第１及び第２可動側金型本体４０，４２に設置する可動側抵抗加熱ヒータ（４５）は、可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ４６と区別するために、第２可動側抵抗加熱ヒータ４５と呼称する。また、第１及び第２可動側金型本体４０，４２は、第２可動側温度調節流路４３と第２可動側抵抗加熱ヒータ４６とを併用してもよい。 (Movable mold)
The movable mold 3 shown in FIG. 1 has a movable cavity piece 37 and a movable mold body 38. The movable side mold body 38 includes a first movable side mold body 40 to which the movable side cavity piece 37 is attached via the heat insulating material 7 and a cavity piece accommodation hole 41 in which the movable side cavity piece 37 is accommodated. 2 movable-side mold main body 42. The first and second movable-side mold bodies 40, 42 are movable-side temperature-adjusted flows that allow fluid (hot water or steam) to flow in order to maintain the temperature of the movable-side mold body 38 at the temperature for taking out the molded product. A path (43) is formed. This movable side temperature control channel (43) is referred to as a second movable side temperature control channel 43 in order to distinguish it from the first movable side temperature control channel 44 of the movable side cavity piece 37. The first and second movable mold body 40, 42 may be provided with a movable resistance heater (45) such as a cartridge heater or a sheathed heater, instead of the second movable temperature control channel 43. Good. The movable resistance heater (45) installed in the first and second movable mold bodies 40, 42 is second movable to distinguish it from the first movable resistance heater 46 of the movable cavity piece 37. This is referred to as a side resistance heater 45. Further, the first and second movable mold main bodies 40 and 42 may use the second movable side temperature adjusting flow path 43 and the second movable side resistance heater 46 in combination.

また、図１及び図２に示すように、可動側キャビティ駒３７は、略円柱形状に形作られ、中心軸ＣＬに沿った一端側に可動側キャビティ形成部分１７が形成されている。この可動側キャビティ形成部分１７は、固定側キャビティ形成部分１６と共にキャビティ４を形成するものであり、可動側キャビティ駒３７の一端面に形成された凹所である。そして、可動側キャビティ駒３７は、中心軸ＣＬに沿った一端側の外周面３７ａが第２可動側金型本体４２に形成されたキャビティ駒収容穴４１の小径部分４７で径方向に位置決めされる。また、可動側キャビティ駒３７は、中心軸ＣＬに沿った他端側に、径方向外方側へ鍔状に張り出すフランジ部４８が形成されている。そして、この可動側キャビティ駒３７は、その中心軸ＣＬに沿った他端側が円板状の断熱材７を介して第１可動側金型本体４０に支持され、フランジ部４８が第２可動側金型本体４２のキャビティ駒収容穴４１のストッパ面５０に押し付けられ、可動側金型本体３８に固定されるようになっている。このような可動側キャビティ駒３７は、断熱材７で第１可動側金型本体４０との間の熱伝導が遮断されるようになっている。   As shown in FIGS. 1 and 2, the movable-side cavity piece 37 is formed in a substantially cylindrical shape, and a movable-side cavity forming portion 17 is formed on one end side along the central axis CL. The movable side cavity forming portion 17 forms the cavity 4 together with the fixed side cavity forming portion 16, and is a recess formed on one end surface of the movable side cavity piece 37. The movable-side cavity piece 37 is positioned in the radial direction by a small-diameter portion 47 of the cavity piece-receiving hole 41 formed in the second movable-side mold body 42 on the outer peripheral surface 37a on one end side along the central axis CL. . Further, the movable cavity piece 37 is formed with a flange portion 48 that protrudes radially outward toward the other end side along the center axis CL. The movable cavity piece 37 is supported at the other end along the central axis CL by the first movable mold body 40 via the disk-shaped heat insulating material 7, and the flange portion 48 is disposed on the second movable side. The mold body 42 is pressed against the stopper surface 50 of the cavity piece accommodation hole 41 and is fixed to the movable mold body 38. Such a movable side cavity piece 37 is configured such that the heat conduction between the movable side cavity piece 37 and the first movable side mold body 40 is blocked by the heat insulating material 7.

また、図１及び図３に示すように、可動側キャビティ駒３７は、その内部に第１可動側温度調節流路４４が形成されている。この第１可動側温度調節流路４４は、可動側キャビティ駒３７の内部に一筆書き状に連続するように形成された二条の螺旋状流路５１を有し、その二条の螺旋状流路５１の一端が流体導入路５２に接続され、その二条の螺旋状流路５１の他端が流体排出路５３に接続されている。そして、この第１可動側温度調節流路４４の一部は、可動側キャビティ形成部分１７の近傍に位置している。なお、流体導入路５２及び流体排出路５３は、断熱材７及び第１可動側金型本体４０を貫通して、流路切換用のバルブユニット２４に接続されている。   As shown in FIGS. 1 and 3, the movable side cavity piece 37 has a first movable side temperature adjusting flow path 44 formed therein. The first movable side temperature control channel 44 includes two spiral channels 51 formed in the movable side cavity piece 37 so as to be continuous in a single stroke, and the two spiral channels 51. Is connected to the fluid introduction path 52, and the other end of the two spiral flow paths 51 is connected to the fluid discharge path 53. A part of the first movable side temperature control flow path 44 is located in the vicinity of the movable side cavity forming portion 17. The fluid introduction path 52 and the fluid discharge path 53 pass through the heat insulating material 7 and the first movable-side mold body 40 and are connected to the valve unit 24 for switching the flow path.

図１乃至図３に示す第１可動側温度調節流路４４は、流路切換用のバルブユニット２４を介して第１流体供給装置２５、第２流体供給装置２６、又はコンプレッサ２７に接続されている。そして、第１可動側温度調節流路４４は、バルブユニット２４によって第１流体供給装置２５に接続された場合、第１流体供給装置２５から第１の流体が供給され、可動側キャビティ駒３７を成形品の取り出し温度（Ｔ１℃）以上の温度（Ｔ２℃）まで加熱するようになっている（図５参照）。また、第１可動側温度調節流路４４は、バルブユニット２４によって第２流体供給装置２６に接続された場合、第２流体供給装置２６から第２の流体が供給され、可動側キャビティ駒３７を成形品の取り出し温度（Ｔ１℃）まで冷却するようになっている（図５参照）。また、第１可動側温度調節流路４４は、バルブユニット２４によってコンプレッサ２７に接続された場合、コンプレッサ２７から圧縮空気が供給され、内部に残留する流体（第１の流体又は第２の流体）及び圧縮空気をドレンタンク２８側に排出できるようなっている。なお、第１可動側温度調節流路４４を流動した第１の流体は第１液体供給装置２５に還流され、第１可動側温度調節流路４４を流動した第２の流体は第２液体供給装置２６に還流されるようになっている。   1 to 3 is connected to the first fluid supply device 25, the second fluid supply device 26, or the compressor 27 through a valve unit 24 for switching the flow channel. Yes. When the first movable side temperature control flow path 44 is connected to the first fluid supply device 25 by the valve unit 24, the first fluid is supplied from the first fluid supply device 25, and the movable side cavity piece 37 is Heating is performed to a temperature (T2 ° C.) equal to or higher than the temperature (T1 ° C.) of taking out the molded product (see FIG. 5). In addition, when the first movable side temperature control channel 44 is connected to the second fluid supply device 26 by the valve unit 24, the second fluid is supplied from the second fluid supply device 26, It cools to the taking-out temperature (T1 ° C.) of the molded product (see FIG. 5). Further, when the first movable side temperature control flow path 44 is connected to the compressor 27 by the valve unit 24, the compressed air is supplied from the compressor 27 and the fluid remaining inside (first fluid or second fluid). The compressed air can be discharged to the drain tank 28 side. Note that the first fluid that has flowed through the first movable side temperature control flow path 44 is returned to the first liquid supply device 25, and the second fluid that has flowed through the first movable side temperature control flow path 44 is the second liquid supply. The apparatus 26 is configured to be refluxed.

図１、図２、及び図４に示す第１可動側抵抗加熱ヒータ４６は、フレキシブルヒータであり、可動側キャビティ駒３７の外周面３７ａに螺旋状に形成されたヒータ収容溝５４内に収容されている。この第１可動側抵抗加熱ヒータ４６は、スイッチ３１によって通電がオン・オフされるようになっている。そして、この第１可動側抵抗加熱ヒータ４６は、一部（先端側）が可動側キャビティ形成部分１７の近傍に位置し、第１可動側温度調節流路４４に第１の流体が流動するのと同時に通電され、可動側キャビティ駒３７を成形品の取り出し温度以上の温度（Ｔ３℃）に加熱する（図５参照）。   The first movable resistance heater 46 shown in FIGS. 1, 2, and 4 is a flexible heater, and is accommodated in a heater accommodating groove 54 formed in a spiral shape on the outer peripheral surface 37 a of the movable cavity piece 37. ing. The first movable resistance heater 46 is turned on / off by a switch 31. The first movable-side resistance heater 46 has a part (front end side) located in the vicinity of the movable-side cavity forming portion 17, and the first fluid flows through the first movable-side temperature adjustment flow path 44. At the same time, energization is performed to heat the movable-side cavity piece 37 to a temperature (T3 ° C.) equal to or higher than the temperature for taking out the molded product (see FIG. 5).

図１に示すように、熱電対３２は、第１可動側金型本体４０及び断熱材７を貫通し、可動側キャビティ駒３７の可動側キャビティ形成部分１７の近傍まで挿入され、可動側キャビティ駒３７の可動側キャビティ形成部分１７近傍の温度測定データをコントローラ３３に入力できるようになっている。   As shown in FIG. 1, the thermocouple 32 passes through the first movable-side mold body 40 and the heat insulating material 7 and is inserted to the vicinity of the movable-side cavity forming portion 17 of the movable-side cavity piece 37. The temperature measurement data in the vicinity of the movable side cavity forming portion 17 of 37 can be input to the controller 33.

図１及び図２に示した可動側キャビティ駒３７は、３Ｄプリンタによる金属粉末積層法を使用して形成されている。その結果、可動側キャビティ駒３７は、複雑な三次元的構造の第１可動側温度調節流路４４が内部に容易且つ確実に形成されると共に、螺旋状のヒータ収容溝５４及び可動側キャビティ形成部分１７が容易且つ確実に形成される。   The movable side cavity piece 37 shown in FIGS. 1 and 2 is formed by using a metal powder lamination method by a 3D printer. As a result, the movable side cavity piece 37 has the first movable side temperature control flow path 44 having a complicated three-dimensional structure formed therein easily and reliably, and the helical heater housing groove 54 and the movable side cavity are formed. The portion 17 is easily and reliably formed.

図１に示すように、第１可動側抵抗加熱ヒータ４６の外周側には、ステンレス鋼等の金属で形成された円筒状の遮熱体５５が嵌合されている。そして、この遮熱体５５と第２可動側金型本体４２（キャビティ駒収容穴４１の内面）との間には、隙間５６（空気層）が設けられている。また、可動側キャビティ駒３７のフランジ部４８の外周面と第２可動側金型本体４２との間には、隙間（空気層）が設けられている。そして、可動側キャビティ駒３７と第２可動側金型本体４２との接触箇所は、第２可動側金型本体４２に形成されたキャビティ駒収容穴４１の小径部分４７と第２可動側金型本体４２のストッパ面５０の極限られた部分であり、可動側キャビティ駒３７から第２可動側金型本体４２への熱伝導が抑えられ、可動側キャビティ駒３７の熱が第２可動側金型本体４２側に逃げにくくなっている。   As shown in FIG. 1, a cylindrical heat shield 55 made of a metal such as stainless steel is fitted on the outer peripheral side of the first movable resistance heater 46. A gap 56 (air layer) is provided between the heat shield 55 and the second movable-side mold body 42 (the inner surface of the cavity piece accommodation hole 41). Further, a gap (air layer) is provided between the outer peripheral surface of the flange portion 48 of the movable side cavity piece 37 and the second movable side mold body 42. And the contact location of the movable side cavity piece 37 and the 2nd movable side die main body 42 is the small diameter part 47 of the cavity piece accommodation hole 41 formed in the 2nd movable side mold main body 42, and the 2nd movable side mold. This is a limited portion of the stopper surface 50 of the main body 42, heat conduction from the movable side cavity piece 37 to the second movable side mold body 42 is suppressed, and the heat of the movable side cavity piece 37 is transferred to the second movable side mold. It is difficult to escape to the main body 42 side.

（射出成形金型の制御方法）
図５乃至図６は、本実施形態に係る射出成形金型１の制御方法を説明するための図である。なお、図５は、固定側キャビティ駒５及び可動側キャビティ駒３７の温度と射出成形時間との関係を示す図である。図６は、射出成形金型１の作動状態を示すタイムチャート図である。なお、射出成形金型１は、固定側金型２の固定側キャビティ駒５と可動側金型３の可動側キャビティ駒３７が同時に作動制御される。 (Control method of injection mold)
5 to 6 are diagrams for explaining a control method of the injection mold 1 according to the present embodiment. FIG. 5 is a diagram showing the relationship between the temperature of the fixed-side cavity piece 5 and the movable-side cavity piece 37 and the injection molding time. FIG. 6 is a time chart showing the operating state of the injection mold 1. In the injection mold 1, the fixed cavity piece 5 of the fixed mold 2 and the movable cavity piece 37 of the movable mold 3 are simultaneously controlled.

（制御の第１ステップ）
本実施形態に係る射出成形金型１を使用した射出成形は、型締めした後、コントローラ３３によってバルブユニット２４が作動制御され、固定側キャビティ駒５の第１固定側温度調節流路１３と可動側キャビティ駒３７の第１可動側温度調節流路４４に第１流体供給装置２５から第１の流体が供給されると共に、コントローラ３３によってスイッチ３１がオンさせられ、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ１５と可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ４６が通電されることにより、成形サイクルがスタートする。その結果、固定側キャビティ駒５は、第１固定側温度調節流路１３を流動する第１の流体と第１固定側抵抗加熱ヒータ１５によって成形品の取り出し温度（Ｔ１℃）以上の温度に加熱される。また、可動側キャビティ駒３７は、第１可動側温度調節流路４４を流動する第１の流体と第１可動側抵抗加熱ヒータ４６によって成形品の取り出し温度（Ｔ１℃）以上の温度に急速に加熱される。なお、固定側キャビティ駒５及び可動側キャビティ駒３７は、予め成形品の取り出し温度以上の温度に加熱された第１の流体が第１固定側温度調節流路１３及び第１可動側温度調節流路４４に供給されるため、第１固定側抵抗加熱ヒータ１５及び第１可動側抵抗加熱ヒータ４６の温度上昇の遅れが第１の流体から供給される熱エネルギーによって補われる。 (First step of control)
In the injection molding using the injection mold 1 according to the present embodiment, after the mold is clamped, the controller 33 controls the operation of the valve unit 24 so that it is movable with the first fixed side temperature control flow path 13 of the fixed side cavity piece 5. The first fluid is supplied from the first fluid supply device 25 to the first movable temperature control channel 44 of the side cavity piece 37 and the switch 31 is turned on by the controller 33, so that the first of the fixed side cavity piece 5 is turned on. The molding cycle starts when the fixed resistance heater 15 and the first movable resistance heater 46 of the movable cavity piece 37 are energized. As a result, the fixed-side cavity piece 5 is heated to a temperature equal to or higher than the take-out temperature (T1 ° C.) of the molded product by the first fluid flowing through the first fixed-side temperature adjusting flow path 13 and the first fixed-side resistance heater 15. Is done. Further, the movable side cavity piece 37 is rapidly heated to a temperature equal to or higher than the temperature (T1 ° C.) of taking out the molded product by the first fluid flowing through the first movable side temperature adjusting flow path 44 and the first movable side resistance heater 46. Heated. In the fixed cavity piece 5 and the movable cavity piece 37, the first fluid heated in advance to a temperature equal to or higher than the temperature at which the molded product is taken out is the first fixed side temperature adjustment flow path 13 and the first movable side temperature adjustment flow. Since it is supplied to the path 44, the delay in temperature rise of the first fixed-side resistance heater 15 and the first movable-side resistance heater 46 is compensated by the thermal energy supplied from the first fluid.

（制御の第２ステップ）
射出成形金型１は、固定側キャビティ駒５と可動側キャビティ駒３７の温度が熱電対３２，３２でそれぞれ測定され、固定側キャビティ駒５及び可動側キャビティ駒３７の温度が成形品の取り出し温度（Ｔ１℃）以上の第１の設定温度（Ｔ２℃）に到達すると（ｔ１秒経過すると）、コントローラ３３によってバルブユニット２４が作動させられ、第１流体供給装置２５から第１固定側温度調節流路１３及び第１可動側温度調節流路４４への第１の流体の供給が停止され、第１固定側温度調節流路１３及び第１可動側温度調節流路４４の第１の流体が第１流体供給装置２５に還流される。 (Second step of control)
In the injection mold 1, the temperatures of the fixed-side cavity piece 5 and the movable-side cavity piece 37 are measured by the thermocouples 32, 32, respectively, and the temperatures of the fixed-side cavity piece 5 and the movable-side cavity piece 37 are the take-out temperature of the molded product. When the first set temperature (T2 ° C.) equal to or higher than (T1 ° C.) is reached (when t1 seconds elapses), the valve unit 24 is operated by the controller 33, and the first fixed side temperature control flow from the first fluid supply device 25 is reached. The supply of the first fluid to the passage 13 and the first movable side temperature adjustment flow path 44 is stopped, and the first fluid in the first fixed side temperature adjustment flow path 13 and the first movable side temperature adjustment flow path 44 is changed to the first fluid. 1 fluid is returned to the fluid supply device 25.

（制御の第３ステップ）
射出成形金型１は、固定側キャビティ駒５と可動側キャビティ駒３７が第１の設定温度（Ｔ２℃）から第２の設定温度（Ｔ３℃）に到達するまで（ｔ１秒からｔ２秒まで）、固定側キャビティ駒５が第１固定側抵抗加熱ヒータ１５のみによって加熱され、可動側キャビティ駒３７が第１可動側抵抗加熱ヒータ４６によってのみ加熱される。 (Third step of control)
The injection mold 1 has the fixed-side cavity piece 5 and the movable-side cavity piece 37 from the first set temperature (T2 ° C.) to the second set temperature (T3 ° C.) (from t1 seconds to t2 seconds). The fixed-side cavity piece 5 is heated only by the first fixed-side resistance heater 15, and the movable-side cavity piece 37 is heated only by the first movable-side resistance heater 46.

（制御の第４ステップ）
そして、射出成形金型１は、固定側キャビティ駒５と可動側キャビティ駒３７の温度が第２の設定温度（Ｔ３℃）に到達すると（ｔ２秒経過すると）、コントローラ３３によってスイッチ３１がオフさせられ、第１固定側抵抗加熱ヒータ１５及び第１可動側抵抗加熱ヒータ４６への通電が遮断される。 (4th step of control)
When the temperature of the fixed-side cavity piece 5 and the movable-side cavity piece 37 reaches the second set temperature (T3 ° C.) (when t2 seconds have elapsed), the injection mold 1 causes the controller 31 to turn off the switch 31. Thus, energization to the first fixed resistance heater 15 and the first movable resistance heater 46 is interrupted.

（制御の第５ステップ）
また、射出成形金型１は、固定側キャビティ駒５と可動側キャビティ駒３７の温度が第２の設定温度（Ｔ３℃）に到達すると（ｔ２秒経過すると）、溶融樹脂が図示しないゲートからキャビティ４内に射出されると共に、バルブユニット２４がコントローラ３３によって作動させられ、コンプレッサ２７と第１固定側温度調節流路１３及び第１可動側温度調節流路４４とがバルブユニット２４を介して接続され、圧縮空気が第１固定側温度調節流路１３及び第１可動側温度調節流路４４に瞬間的に（僅かな時間Δｔだけ）供給され、第１固定側温度調節流路１３及び第１可動側温度調節流路４４に残留している第１の流体がドレンタンク２８に圧縮空気と共に排出される。なお、生産サイクルが僅かに長くなることを許容できる場合には、圧縮空気を第１固定側温度調節流路１３及び第１可動側温度調節流路４４に供給するのを省略してもよい。 (5th step of control)
Further, when the temperature of the fixed cavity piece 5 and the movable cavity piece 37 reaches the second set temperature (T3 ° C.) (when t2 seconds have elapsed), the injection mold 1 causes the molten resin to be discharged from the gate (not shown) to the cavity. 4, the valve unit 24 is operated by the controller 33, and the compressor 27 is connected to the first fixed side temperature adjustment flow path 13 and the first movable side temperature adjustment flow path 44 via the valve unit 24. Then, the compressed air is instantaneously supplied (for a short time Δt) to the first fixed-side temperature control channel 13 and the first movable-side temperature control channel 44, and the first fixed-side temperature control channel 13 and the first The first fluid remaining in the movable side temperature control flow path 44 is discharged to the drain tank 28 together with the compressed air. In addition, when it is possible to allow the production cycle to be slightly longer, the supply of compressed air to the first fixed side temperature control flow path 13 and the first movable side temperature control flow path 44 may be omitted.

（制御の第６ステップ）
また、射出成形金型１は、固定側キャビティ駒５と可動側キャビティ駒３７の温度が第２の設定温度（Ｔ３℃）で維持され、溶融樹脂がキャビティ４に充填された後に保圧された状態で所定時間経過（ｔ３秒経過）すると、バルブユニット２４がコントローラ３３によって作動させられ、第１固定側温度調節流路１３と第１可動側温度調節流路４４に第２流体供給装置２６から第２の流体が供給される。この第２の流体は、第１固定側温度調節流路１３と第１可動側温度調節流路４４を流動して、固定側キャビティ駒５及び可動側キャビティ駒３７の温度を第２の設定温度（Ｔ３℃）から成形品の取り出し温度（Ｔ１℃）まで急速に冷却する。 (Sixth step of control)
In addition, the injection mold 1 was held at a pressure after the temperature of the fixed cavity piece 5 and the movable cavity piece 37 was maintained at the second set temperature (T3 ° C.) and the molten resin was filled into the cavity 4. When a predetermined time elapses in the state (t3 seconds elapses), the valve unit 24 is actuated by the controller 33, and the second fluid supply device 26 enters the first fixed side temperature adjustment channel 13 and the first movable side temperature adjustment channel 44. A second fluid is supplied. The second fluid flows through the first fixed-side temperature adjusting channel 13 and the first movable-side temperature adjusting channel 44, and the temperatures of the fixed-side cavity piece 5 and the movable-side cavity piece 37 are set to the second set temperature. Cool rapidly from (T3 ° C.) to the removal temperature of the molded product (T 1 ° C.).

（制御の第７ステップ）
そして、射出成形金型１は、固定側キャビティ駒５及び可動側キャビティ駒３７の温度が成形品の取り出し温度（Ｔ１℃）に到達すると（ｔ４秒経過すると）、バルブユニット２４がコントローラ３３によって作動させられ、第２流体供給装置２６からの第２の流体の供給が停止されると共に、第２の流体が第１固定側温度調節流路１３と第１可動側温度調節流路４４から第２流体供給装置２６に還流される。 (Seventh step of control)
In the injection mold 1, when the temperature of the fixed cavity piece 5 and the movable cavity piece 37 reaches the temperature (T1 ° C.) for taking out the molded product (when t4 seconds have elapsed), the valve unit 24 is operated by the controller 33. The supply of the second fluid from the second fluid supply device 26 is stopped, and the second fluid is supplied from the first fixed side temperature control channel 13 and the first movable side temperature control channel 44 to the second level. The fluid is returned to the fluid supply device 26.

（制御の第８ステップ）
また、射出成形金型１は、固定側キャビティ駒５及び可動側キャビティ駒３７の温度が成形品の取り出し温度（Ｔ１℃）に到達すると（ｔ４秒経過すると）、可動側金型３が固定側金型２から分離され（型開きされ）、可動側キャビティ駒３７の可動側キャビティ形成部分１７に残っている成形品が図示しないエジェクタピンで取り出される。 (Eighth step of control)
In addition, when the temperature of the fixed cavity piece 5 and the movable cavity piece 37 reaches the temperature (T1 ° C.) for taking out the molded product (when t4 seconds elapses), the injection mold 1 moves the movable mold 3 to the fixed side. The molded product separated from the mold 2 (ie, opened) and remaining in the movable cavity forming portion 17 of the movable cavity piece 37 is taken out by an ejector pin (not shown).

（制御の第９ステップ）
また、射出成形金型１は、成形品の取り出し作業が終了すると（ｔ５秒経過すると）、型締めされ（可動側金型３が固定側金型２に押し当てられ）、次の射出成形サイクルがスタートし、第１固定側温度調節流路１３と第１可動側温度調節流路４４に第１の流体が供給されると共に、第１固定側抵抗加熱ヒータ１５と第１可動側抵抗加熱ヒータ４６が通電される。このように、第１固定側温度調節流路１３と第１可動側温度調節流路４４には、第１の流体と第２の流体が交互に供給され、射出成形サイクルが繰り返される。 (9th step of control)
Further, the injection mold 1 is clamped (the movable mold 3 is pressed against the fixed mold 2) after the removal of the molded product is completed (t5 seconds have elapsed), and the next injection molding cycle is performed. Starts, the first fluid is supplied to the first fixed-side temperature control channel 13 and the first movable-side temperature control channel 44, and the first fixed-side resistance heater 15 and the first movable-side resistance heater 46 is energized. Thus, the first fluid and the second fluid are alternately supplied to the first fixed side temperature control channel 13 and the first movable side temperature control channel 44, and the injection molding cycle is repeated.

（第１実施形態の第１の効果）
本実施形態に係る射出成形金型１によれば、固定側キャビティ駒５は、第１固定側抵抗加熱ヒータ１５の温度上昇の遅れが第１固定側温度調節流路１３を流動する第１の流体の熱で補われる。また、可動側キャビティ駒３７は、第１可動側抵抗加熱ヒータ４６の温度上昇の遅れが第１可動側温度調節流路４４を流動する第１の流体の熱で補われる。したがって、本実施形態の射出成形金型１は、固定側キャビティ駒５が第１固定側抵抗加熱ヒータ１５のみで加熱される場合、及び可動側キャビティ駒３７が第１可動側抵抗加熱ヒータ４６のみで加熱される場合と比較し、固定側キャビティ駒５及び可動側キャビティ駒３７を短時間で射出成形に適した温度（Ｔ３℃）に加熱することができる。その結果、本実施形態に係る射出成形金型１は、成形サイクル（成形品の生産サイクル）を短縮できる。 (First effect of the first embodiment)
According to the injection mold 1 according to the present embodiment, the fixed-side cavity piece 5 includes the first fixed-side temperature control flow path 13 in which the delay in the temperature increase of the first fixed-side resistance heater 15 flows through the first fixed-side temperature adjustment flow path 13. Complemented with fluid heat. Further, in the movable side cavity piece 37, the delay in the temperature rise of the first movable side resistance heater 46 is compensated by the heat of the first fluid flowing in the first movable side temperature adjustment flow path 44. Therefore, in the injection mold 1 of the present embodiment, when the fixed-side cavity piece 5 is heated only by the first fixed-side resistance heater 15, and the movable-side cavity piece 37 is only the first movable-side resistance heater 46. Compared with the case where it heats by (3), the fixed side cavity piece 5 and the movable side cavity piece 37 can be heated to the temperature (T3 degreeC) suitable for injection molding in a short time. As a result, the injection mold 1 according to the present embodiment can shorten the molding cycle (the production cycle of the molded product).

（第１実施形態の第２の効果）
また、本実施形態に係る射出成形金型１は、固定側キャビティ駒５が断熱材７を介して第１固定側金型本体８に取り付けられ、固定側キャビティ駒５から第１固定側金型本体８への熱伝導が防止される。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７が断熱材７を介して第１可動側金型本体４０に取り付けられ、可動側キャビティ駒３７から第１可動側金型本体４０への熱伝導を防止できる。したがって、本実施形態に係る射出成形金型１は、上記第１の効果と相俟って、より一層成形サイクルを短縮できる。 (Second effect of the first embodiment)
Further, in the injection mold 1 according to the present embodiment, the fixed-side cavity piece 5 is attached to the first fixed-side mold main body 8 via the heat insulating material 7, and the fixed-side cavity piece 5 extends to the first fixed-side mold. Heat conduction to the main body 8 is prevented. Further, in the injection mold 1 according to the present embodiment, the movable side cavity piece 37 is attached to the first movable side mold body 40 via the heat insulating material 7, and the first movable side mold is moved from the movable side cavity piece 37. Heat conduction to the main body 40 can be prevented. Therefore, the injection mold 1 according to the present embodiment can further shorten the molding cycle in combination with the first effect.

（第１実施形態の第３の効果）
また、本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ１５の周囲が遮熱体３４で覆われると共に、遮熱体３４と第２固定側金型本体１１との間に隙間３５（空気層）が形成されているため、固定側キャビティ駒５から第２固定側金型本体１１への熱の移動を抑えることができる。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ４６の周囲が遮熱体５５で覆われると共に、遮熱体５５と第２可動側金型本体４２との間に隙間５６（空気層）が形成されているため、可動側キャビティ駒３７から第２可動側金型本体４２への熱の移動を抑えることができる。したがって、本実施形態に係る射出成形金型１は、上記第１及び第２の効果と相俟って、より一層成形サイクルを短縮できる。 (Third effect of the first embodiment)
In addition, the injection mold 1 according to the present embodiment is configured such that the periphery of the first fixed-side resistance heater 15 of the fixed-side cavity piece 5 is covered with the heat-shielding body 34, and the heat-shielding body 34 and the second fixed-side mold. Since the gap 35 (air layer) is formed between the mold body 11 and the mold body 11, heat transfer from the fixed-side cavity piece 5 to the second fixed-side mold body 11 can be suppressed. Further, in the injection mold 1 according to this embodiment, the periphery of the first movable side resistance heater 46 of the movable side cavity piece 37 is covered with the heat shield 55, and the heat shield 55 and the second movable side mold. Since the gap 56 (air layer) is formed between the mold body 42 and the mold body 42, heat transfer from the movable cavity piece 37 to the second movable mold body 42 can be suppressed. Therefore, the injection mold 1 according to the present embodiment can further shorten the molding cycle in combination with the first and second effects.

（第１実施形態の第４の効果）
また、本実施形態に係る射出成形金型１は、固定側キャビティ駒５が第１固定側抵抗加熱ヒータ１５で射出成形に適した第２の設定温度（Ｔ３℃）まで加熱され、可動側キャビティ駒３７が第１可動側抵抗加熱ヒータ４６で射出成形に適した第２の設定温度（Ｔ３℃）まで加熱されるようになっているため、射出温度が高いスーパーエンジニアリングプラスチックの射出成形を短時間で効率的に行うことが可能になる。 (Fourth effect of the first embodiment)
In the injection mold 1 according to the present embodiment, the fixed cavity block 5 is heated by the first fixed resistance heater 15 to the second set temperature (T3 ° C.) suitable for injection molding, so that the movable cavity Since the piece 37 is heated to the second set temperature (T3 ° C.) suitable for injection molding by the first movable resistance heater 46, injection molding of super engineering plastic having a high injection temperature is performed in a short time. It is possible to carry out efficiently.

（第１実施形態の第５の効果）
また、本実施形態に係る射出成形金型１は、固定側キャビティ駒５及び可動側キャビティ駒３７の内部に高温水と低温水を交互に流動させるヒート＆クール成形技術を採用しているため、高精度（高転写精度）で低歪みの成形品を生産できる。 (Fifth effect of the first embodiment)
Moreover, since the injection mold 1 according to the present embodiment employs a heat and cool molding technique in which high-temperature water and low-temperature water flow alternately inside the fixed-side cavity piece 5 and the movable-side cavity piece 37, High-precision (high transfer accuracy) and low-distortion molded products can be produced.

（第１実施形態の第６の効果）
また、本実施形態に係る射出成形金型１は、第１固定側温度調節流路１３及び第１可動側温度調節流路４４が二条の螺旋形状であるため、第１固定側温度調節流路１３及び第１可動側温度調節流路４４が直線状の場合と比較し、流路長さが長くなり、第１固定側温度調節流路１３及び第１可動側温度調節流路４４を流動する第１の流体及び第２の流体と固定側キャビティ駒５及び可動側キャビティ駒３７との接触面積が大きい。その結果、本実施形態に係る射出成形金型１は、第１の流体の熱を固定側キャビティ駒５及び可動側キャビティ駒３７の全体に均一に且つ効率的に伝達でき、固定側キャビティ駒５及び可動側キャビティ駒３７の加熱速度が大きい。また、本実施形態に係る射出成形金型１は、固定側キャビティ駒５及び可動側キャビティ駒３７の全体の温度を均一且つ効率的に吸収でき、固定側キャビティ駒５及び可動側キャビティ駒３７の冷却速度が大きい。 (Sixth effect of the first embodiment)
Moreover, since the 1st fixed side temperature control flow path 13 and the 1st movable side temperature control flow path 44 are the two spiral shapes, the injection mold 1 which concerns on this embodiment has the 1st fixed side temperature control flow path. 13 and the first movable side temperature control flow path 44 are longer than the straight line, and flows through the first fixed side temperature control flow path 13 and the first movable side temperature control flow path 44. The contact area between the first fluid and the second fluid and the fixed-side cavity piece 5 and the movable-side cavity piece 37 is large. As a result, the injection mold 1 according to this embodiment can transmit the heat of the first fluid uniformly and efficiently to the entire fixed cavity piece 5 and the movable cavity piece 37, and the fixed cavity piece 5 And the heating speed of the movable side cavity piece 37 is large. Moreover, the injection mold 1 according to the present embodiment can absorb the entire temperature of the fixed-side cavity piece 5 and the movable-side cavity piece 37 uniformly and efficiently. The cooling rate is large.

（第１実施形態の第７の効果）
また、本実施形態に係る射出成形金型１は、第１固定側温度調節流路１３の少なくとも一部が固定側キャビティ駒５の固定側キャビティ形成部分１６の近傍に位置し、第１可動側温度調節流路４４の少なくとも一部が可動側キャビティ駒３７の可動側キャビティ形成部分１７の近傍に位置しているため、第１固定側温度調節流路１３及び第１可動側温度調節流路４４を流動する第１の流体でキャビティ４近傍を効率的に加熱でき、第１固定側温度調節流路１３及び第１可動側温度調節流路４４を流動する第２の流体でキャビティ４の近傍領域を効率的に冷却できる。その結果、本実施形態に係る射出成形金型１は、ヒート＆クール成形技術の効果を高め、高精度で且つ低歪みの成形品を得ることができる。 (Seventh effect of the first embodiment)
Further, in the injection mold 1 according to the present embodiment, at least a part of the first fixed side temperature control flow path 13 is located in the vicinity of the fixed side cavity forming portion 16 of the fixed side cavity piece 5, and the first movable side Since at least a part of the temperature adjustment channel 44 is located in the vicinity of the movable side cavity forming portion 17 of the movable side cavity piece 37, the first fixed side temperature adjustment channel 13 and the first movable side temperature adjustment channel 44. The vicinity of the cavity 4 can be efficiently heated by the first fluid flowing through the first fluid, and the region near the cavity 4 by the second fluid flowing through the first fixed-side temperature control channel 13 and the first movable-side temperature control channel 44. Can be cooled efficiently. As a result, the injection mold 1 according to the present embodiment can enhance the effect of the heat and cool molding technique and obtain a molded product with high accuracy and low distortion.

（第１実施形態の第８の効果）
また、本実施形態に係る射出成形金型１は、成形品の取り出し時に、第１可動側金型本体４０の温度と可動側キャビティ駒３７の温度が成形品の取り出し温度（Ｔ１℃）に合わせられるため、第１可動側金型本体４０のエジェクタピン収容穴と可動側キャビティ駒３７のエジェクタピン収容穴との位置に熱膨張差に起因するずれを生じることがなく、エジェクタピンが成形品の取り出し時に円滑に作動する。 (Eighth effect of the first embodiment)
Further, in the injection mold 1 according to the present embodiment, when the molded product is taken out, the temperature of the first movable side mold body 40 and the temperature of the movable side cavity piece 37 match the temperature of taking out the molded product (T1 ° C.). Therefore, the position of the ejector pin accommodation hole of the first movable-side mold body 40 and the position of the ejector pin accommodation hole of the movable-side cavity piece 37 does not cause a deviation due to the difference in thermal expansion, and the ejector pin is the molded product. Operates smoothly during removal.

（第１実施形態の変形例１）
図７は、固定側キャビティ駒５の変形例を説明する図である。この図７に示す固定側キャビティ駒５は、金属接合技術を使用して略円柱形状に形成されており、複数の円板状の金属製プレート６１〜６８を積み重ねて一体化することにより、内部に第１固定側温度調節流路７０が形成されている。この固定側キャビティ駒５は、中心軸ＣＬに沿った一端側に固定側キャビティ形成部分１６が形成され、中心軸ＣＬに沿った他端側にフランジ部６１ａが形成されている。なお、この固定側キャビティ駒５は、８枚の円板状の金属製プレート６１〜６８からなっているが、これに限定されず、成形品の大きさ等に応じた最適の枚数の金属製プレートを重ねて形成される。 (Modification 1 of the first embodiment)
FIG. 7 is a view for explaining a modification of the fixed cavity piece 5. The fixed-side cavity piece 5 shown in FIG. 7 is formed in a substantially cylindrical shape by using a metal joining technique, and by stacking and integrating a plurality of disk-like metal plates 61 to 68, A first fixed-side temperature control flow path 70 is formed in the first. The fixed-side cavity piece 5 has a fixed-side cavity forming portion 16 formed on one end side along the central axis CL, and a flange portion 61a formed on the other end side along the central axis CL. The fixed-side cavity piece 5 is composed of eight disk-shaped metal plates 61 to 68, but is not limited to this and is made of an optimal number of metal pieces according to the size of the molded product. It is formed by stacking plates.

図７に示す固定側キャビティ駒５は、中心軸ＣＬの他端側から順に第１乃至第８プレート６１〜６８とすると、第１プレート６１が他のプレート６２〜６８よりも外径寸法が大きく、第１プレート６１がフランジ部６１ａを形作るようになっている。そして、この第１プレート６１は、図８に示すように、流体導入路７１の一部と流体排出路７２の一部が表裏を貫通するように形成されている。図９は、第２プレート６２、第４プレート６４、及び第６プレート６６を示す図である。また、図１０は、第３プレート６３、第５プレート６５、及び第７プレート６７を示す図である。また、図１１は、第８プレート６８を示す図である。   In the fixed-side cavity piece 5 shown in FIG. 7, when the first to eighth plates 61 to 68 are sequentially arranged from the other end side of the central axis CL, the first plate 61 has a larger outer diameter than the other plates 62 to 68. The first plate 61 forms the flange portion 61a. As shown in FIG. 8, the first plate 61 is formed such that a part of the fluid introduction path 71 and a part of the fluid discharge path 72 penetrate the front and back. FIG. 9 is a view showing the second plate 62, the fourth plate 64, and the sixth plate 66. FIG. 10 is a diagram showing the third plate 63, the fifth plate 65, and the seventh plate 67. FIG. 11 is a view showing the eighth plate 68.

第２乃至第８プレート６２〜６８は、図９（ａ）、図１０（ａ）及び図１１（ａ）に示すように、略Ｃ形状の円弧状流路７３，７４が下面側にそれぞれ形成されており、各円弧状流路７３，７４が上下方向（中心軸ＣＬに沿った方向）に重なるように形成されている（図７（ｄ）参照）。なお、第２乃至第７プレート６２〜６７の円弧状流路７３は、同一形状に形成されており、第２乃至第７プレート６２〜６７の下面に凹設された円弧状の溝である。また、第８プレート６８の円弧状流路７４は、第８プレート６８の下面に凹設された円弧状の溝であり、その流路長さが第２乃至第７プレート６２〜６７の円弧状流路７３よりも長く形成されている。また、第２乃至第７プレート６２〜６７は、第１プレート６１の流体排出路７２に接続される流体排出路７２が円弧状流路７３の一端と他端の間を表裏に貫通するように形成されている。   As shown in FIG. 9A, FIG. 10A, and FIG. 11A, the second to eighth plates 62 to 68 are formed with substantially C-shaped arc-shaped flow paths 73 and 74 on the lower surface side, respectively. The arc-shaped flow paths 73 and 74 are formed so as to overlap in the vertical direction (direction along the central axis CL) (see FIG. 7D). The arcuate flow paths 73 of the second to seventh plates 62 to 67 are formed in the same shape, and are arcuate grooves that are recessed in the lower surfaces of the second to seventh plates 62 to 67. The arc-shaped flow path 74 of the eighth plate 68 is an arc-shaped groove recessed in the lower surface of the eighth plate 68, and the length of the flow path is the arc shape of the second to seventh plates 62 to 67. It is formed longer than the flow path 73. Further, the second to seventh plates 62 to 67 are arranged such that the fluid discharge path 72 connected to the fluid discharge path 72 of the first plate 61 penetrates between the one end and the other end of the arc-shaped flow path 73 on the front and back sides. Is formed.

第２プレート６２は、円弧状流路７３の一端が第１プレート６１の流体導入路７１に接続され、円弧状流路７３の他端が中心軸ＣＬに沿って延びる接続路７５を介して第３プレート６３の円弧状流路７３の他端に接続されている。また、第３プレート６３は、円弧状流路７３の一端が中心軸ＣＬに沿って延びる接続路７５を介して第４プレート６４の円弧状流路７３の一端に接続されている。また、第４プレート６４は、円弧状流路７３の他端が中心軸ＣＬに沿って延びる接続路７５を介して第５プレート６５の円弧状流路７３の他端に接続されている。また、第５プレート６５は、円弧状流路７３の一端が中心軸ＣＬに沿って延びる接続路７５を介して第６プレート６６の円弧状流路７３の一端に接続されている。また、第６プレート６６は、円弧状流路７３の他端が中心軸ＣＬに沿って延びる接続路７５を介して第７プレート６７の円弧状流路７３の他端に接続されている。また、第７プレート６７は、円弧状流路７３の一端が中心軸ＣＬに沿って延びる接続路７５を介して第８プレート６８の円弧状流路７４の一端に接続されている。そして、第８プレート６８は、円弧状流路７４の他端が第７プレート６７の流体排出路７２に接続され、第６乃至第２プレート６６〜６２の流体排出路７２を介して第１プレート６１の流体排出路７２に接続されている。これによって、第１プレート６１の流体導入路７１と流体排出路７２は、第２乃至第８プレート６２〜６８の円弧状流路７３，７４及び接続路７５を介して一筆書き状に連続するように接続されている（図７（ｄ）参照）。そして、第１固定側温度調整流路７０は、これら流体導入路７１、円弧状流路７３，７４、及び接続路７５によって形作られている。なお、第８プレート６８の円弧状流路７４は、固定側キャビティ駒５の固定側キャビティ形成部分１６の近傍に位置している（図１１参照）。   In the second plate 62, one end of the arc-shaped flow path 73 is connected to the fluid introduction path 71 of the first plate 61, and the other end of the arc-shaped flow path 73 is connected via the connection path 75 extending along the central axis CL. The other end of the arc-shaped channel 73 of the three plate 63 is connected. The third plate 63 is connected to one end of the arc-shaped flow path 73 of the fourth plate 64 via a connection path 75 having one end of the arc-shaped flow path 73 extending along the central axis CL. The fourth plate 64 is connected to the other end of the arc-shaped flow path 73 of the fifth plate 65 through a connection path 75 having the other end of the arc-shaped flow path 73 extending along the central axis CL. The fifth plate 65 is connected to one end of the arc-shaped channel 73 of the sixth plate 66 through a connection path 75 having one end of the arc-shaped channel 73 extending along the central axis CL. The sixth plate 66 is connected to the other end of the arc-shaped channel 73 of the seventh plate 67 through a connection path 75 having the other end of the arc-shaped channel 73 extending along the central axis CL. The seventh plate 67 is connected to one end of the arc-shaped channel 74 of the eighth plate 68 via a connection path 75 having one end of the arc-shaped channel 73 extending along the central axis CL. The eighth plate 68 has the other end of the arc-shaped flow path 74 connected to the fluid discharge path 72 of the seventh plate 67 and the first plate via the fluid discharge path 72 of the sixth to second plates 66 to 62. 61 fluid discharge paths 72 are connected. As a result, the fluid introduction path 71 and the fluid discharge path 72 of the first plate 61 are continuous in a single stroke through the arc-shaped channels 73 and 74 and the connection path 75 of the second to eighth plates 62 to 68. (See FIG. 7D). The first fixed side temperature adjustment flow path 70 is formed by the fluid introduction path 71, the arc-shaped flow paths 73 and 74, and the connection path 75. The arc-shaped flow path 74 of the eighth plate 68 is located in the vicinity of the fixed-side cavity forming portion 16 of the fixed-side cavity piece 5 (see FIG. 11).

なお、図７に示す固定側キャビティ駒５は、流体導入路７１を流体排出路７２に変更し、流体排出路７２を流体導入路７１に変更してもよい。また、図７に示す固定側キャビティ駒５は、固定側キャビティ形成部分１６の形状を変更することにより、可動側キャビティ駒３７としても使用することが可能である。また、本実施形態に係る固定側キャビティ駒５は、第１固定側抵抗加熱ヒータ（フレキシブルヒータ）を収容するヒータ収容溝が外周面５ａに切削加工される。   Note that the fixed-side cavity piece 5 shown in FIG. 7 may change the fluid introduction path 71 to the fluid discharge path 72 and change the fluid discharge path 72 to the fluid introduction path 71. Further, the fixed-side cavity piece 5 shown in FIG. 7 can also be used as the movable-side cavity piece 37 by changing the shape of the fixed-side cavity forming portion 16. Further, in the fixed-side cavity piece 5 according to the present embodiment, a heater housing groove that houses a first fixed-side resistance heater (flexible heater) is cut into the outer peripheral surface 5a.

以上のような本変形例に係る固定側キャビティ駒５は、図１に示した固定側キャビティ駒５に代えて使用することができる。また、本変形例に係る固定側キャビティ駒５を使用した射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The fixed-side cavity piece 5 according to the present modification as described above can be used in place of the fixed-side cavity piece 5 shown in FIG. Moreover, the injection mold 1 using the fixed cavity piece 5 according to the present modification can obtain the same effects as the injection mold 1 according to the first embodiment.

［第２実施形態］
図１２は、本発明の第２実施形態に係る射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側温度調節流路７６と可動側キャビティ駒３７の第１可動側温度調整流路７７が第１実施形態の第１固定側温度調節流路１３と第１可動側温度調節流路４４と異なる点を除き、他の構成が第１実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１に示した第１実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Second Embodiment]
FIG. 12 is a cross-sectional view of an injection mold 1 according to the second embodiment of the present invention. In the injection mold 1 according to this embodiment, the first fixed side temperature adjustment channel 76 of the fixed side cavity piece 5 and the first movable side temperature adjustment channel 77 of the movable side cavity piece 37 are the same as those of the first embodiment. Except for the difference between the first fixed side temperature control flow path 13 and the first movable side temperature control flow path 44, other configurations are the same as those of the injection mold 1 according to the first embodiment. Therefore, in the injection mold 1 according to the present embodiment, the same reference numerals are given to the same components as those of the injection mold 1 according to the first embodiment shown in FIG. 1, and the injection mold according to the first embodiment. A duplicate description of the mold 1 is omitted.

図１２に示す本実施形態に係る射出成形金型１において、第１固定側温度調節流路７６は、固定側キャビティ形成部分１６の近傍に位置し且つ固定側キャビティ形成部分１６の形状に倣うように形成された円板状の流体溜まり７８と、この流体溜まり７８に第１の流体又は第２の流体を案内する流体導入路２２と、流体溜まり７８の第１の流体又は第２の流体を固定側金型本体６の外部に排出する流体排出路２３と、を有している（図１３参照）。また、図１２に示すように、第１可動側温度調節流路７７は、可動側キャビティ形成部分１７の近傍に位置し且つ可動側キャビティ形成部分１７の形状に倣うように形成された円板状の流体溜まり８０と、この流体溜まり８０に第１の流体又は第２の流体を案内する流体導入路５２と、流体溜まり８０の第１の流体又は第２の流体を可動側金型本体３８の外部に排出する流体排出路５３と、を有している（図１３参照）。   In the injection mold 1 according to the present embodiment shown in FIG. 12, the first fixed-side temperature adjustment flow path 76 is positioned in the vicinity of the fixed-side cavity forming portion 16 and follows the shape of the fixed-side cavity forming portion 16. A disk-shaped fluid reservoir 78 formed on the fluid reservoir 78, a fluid introduction path 22 for guiding the first fluid or the second fluid to the fluid reservoir 78, and the first fluid or the second fluid in the fluid reservoir 78 And a fluid discharge path 23 for discharging to the outside of the stationary mold body 6 (see FIG. 13). Further, as shown in FIG. 12, the first movable side temperature control flow path 77 is located in the vicinity of the movable side cavity forming portion 17 and is formed in a disk shape that follows the shape of the movable side cavity forming portion 17. The fluid reservoir 80, the fluid introduction path 52 for guiding the first fluid or the second fluid to the fluid reservoir 80, and the first fluid or the second fluid in the fluid reservoir 80 are transferred to the movable mold body 38. And a fluid discharge path 53 for discharging to the outside (see FIG. 13).

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第３実施形態］
図１４は、本発明の第３実施形態に係る射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ８１と可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ８２が第１実施形態の第１固定側抵抗加熱ヒータ１５と第１可動側抵抗加熱ヒータ４６と異なる点を除き、他の構成が第１実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１に示した第１実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Third Embodiment]
FIG. 14 is a cross-sectional view of an injection mold 1 according to the third embodiment of the present invention. In the injection mold 1 according to this embodiment, the first fixed-side resistance heater 81 of the fixed-side cavity piece 5 and the first movable-side resistance heater 82 of the movable-side cavity piece 37 are the first fixed in the first embodiment. Except for the difference from the side resistance heater 15 and the first movable side resistance heater 46, other configurations are the same as those of the injection mold 1 according to the first embodiment. Therefore, in the injection mold 1 according to the present embodiment, the same reference numerals are given to the same components as those of the injection mold 1 according to the first embodiment shown in FIG. 1, and the injection mold according to the first embodiment. A duplicate description of the mold 1 is omitted.

本実施形態に係る射出成形金型１は、固定側キャビティ駒５の内部で且つ中心軸ＣＬに沿う位置（中心部）に、第１固定側抵抗加熱ヒータ８１としての棒状ヒータ（カートリッジヒータ、シーズヒータ等）がフレキシブルヒータに代えて配置されている。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７の内部で且つ中心軸ＣＬに沿う位置（中心部）に、第１可動側抵抗加熱ヒータ８２としての棒状ヒータ（カートリッジヒータ、シーズヒータ等）がフレキシブルヒータに代えて配置されている。   The injection mold 1 according to the present embodiment has a rod-shaped heater (cartridge heater, seeds) as a first fixed-side resistance heater 81 inside the fixed-side cavity piece 5 and at a position (center) along the central axis CL. Heater etc.) are arranged instead of the flexible heater. Further, the injection mold 1 according to the present embodiment has a rod-shaped heater (cartridge heater) as the first movable side resistance heater 82 in the movable side cavity piece 37 and at a position (center part) along the central axis CL. , Sheathed heater, etc.) are arranged in place of the flexible heater.

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第４実施形態］
図１５は、本発明の第４実施形態に係る射出成形金型１の断面図であり、第２実施形態の射出成形金型１の構成を一部変更した射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ８１と可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ８２が第２実施形態の第１固定側抵抗加熱ヒータ１５と第１可動側抵抗加熱ヒータ４６と異なる点を除き、他の構成が第２実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１２に示した第２実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１及び第２実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Fourth Embodiment]
FIG. 15 is a cross-sectional view of an injection mold 1 according to the fourth embodiment of the present invention, and is a cross-sectional view of the injection mold 1 in which the configuration of the injection mold 1 of the second embodiment is partially changed. is there. In the injection mold 1 according to this embodiment, the first fixed-side resistance heater 81 of the fixed-side cavity piece 5 and the first movable-side resistance heater 82 of the movable-side cavity piece 37 are the first fixed in the second embodiment. Except for the differences from the side resistance heater 15 and the first movable side resistance heater 46, other configurations are the same as those of the injection mold 1 according to the second embodiment. Accordingly, in the injection mold 1 according to this embodiment, the same components as those of the injection mold 1 according to the second embodiment shown in FIG. The description which overlaps with the description of the injection mold 1 will be omitted.

本実施形態に係る射出成形金型１は、固定側キャビティ駒５の内部で且つ中心軸ＣＬに沿う位置（中心部）に、第１固定側抵抗加熱ヒータ８１としての棒状ヒータ（カートリッジヒータ、シーズヒータ等）がフレキシブルヒータに代えて配置されている。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７の内部で且つ中心軸ＣＬに沿う位置（中心部）に、第１可動側抵抗加熱ヒータ８２としての棒状ヒータ（カートリッジヒータ、シーズヒータ等）がフレキシブルヒータに代えて配置されている。   The injection mold 1 according to the present embodiment has a rod-shaped heater (cartridge heater, seeds) as a first fixed-side resistance heater 81 inside the fixed-side cavity piece 5 and at a position (center) along the central axis CL. Heater etc.) are arranged instead of the flexible heater. Further, the injection mold 1 according to the present embodiment has a rod-shaped heater (cartridge heater) as the first movable side resistance heater 82 in the movable side cavity piece 37 and at a position (center part) along the central axis CL. , Sheathed heater, etc.) are arranged in place of the flexible heater.

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第５実施形態］
図１６は、本発明の第５実施形態に係る射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ８３と可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ８４が第１実施形態の第１固定側抵抗加熱ヒータ１５と第１可動側抵抗加熱ヒータ４６と異なる点を除き、他の構成が第１実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１に示した第１実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Fifth Embodiment]
FIG. 16 is a sectional view of an injection mold 1 according to the fifth embodiment of the present invention. In the injection mold 1 according to this embodiment, the first fixed-side resistance heater 83 of the fixed-side cavity piece 5 and the first movable-side resistance heater 84 of the movable-side cavity piece 37 are the first fixed in the first embodiment. Except for the difference from the side resistance heater 15 and the first movable side resistance heater 46, other configurations are the same as those of the injection mold 1 according to the first embodiment. Therefore, in the injection mold 1 according to the present embodiment, the same reference numerals are given to the same components as those of the injection mold 1 according to the first embodiment shown in FIG. 1, and the injection mold according to the first embodiment. A duplicate description of the mold 1 is omitted.

本実施形態に係る射出成形金型１は、固定側キャビティ駒５の外周面５ａに、第１固定側抵抗加熱ヒータ８３としてのコイルヒータがフレキシブルヒータに代えて嵌合されている。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７の外周面３７ａに、第１可動側抵抗加熱ヒータ８４としてのコイルヒータがフレキシブルヒータに代えて嵌合されている。   In the injection mold 1 according to this embodiment, a coil heater as a first fixed-side resistance heater 83 is fitted to the outer peripheral surface 5a of the fixed-side cavity piece 5 in place of the flexible heater. In the injection mold 1 according to this embodiment, a coil heater as the first movable resistance heater 84 is fitted to the outer peripheral surface 37a of the movable cavity piece 37 instead of the flexible heater.

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第６実施形態］
図１７は、本発明の第６実施形態に係る射出成形金型１の断面図であり、第２実施形態の射出成形金型１の構成を一部変更した射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、固定側キャビティ駒５の第１固定側抵抗加熱ヒータ８３と可動側キャビティ駒３７の第１可動側抵抗加熱ヒータ８４が第２実施形態の第１固定側抵抗加熱ヒータ１５と第１可動側抵抗加熱ヒータ４６と異なる点を除き、他の構成が第２実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１２に示した第２実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１及び第２実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Sixth Embodiment]
FIG. 17 is a cross-sectional view of an injection mold 1 according to the sixth embodiment of the present invention, and is a cross-sectional view of the injection mold 1 in which the configuration of the injection mold 1 of the second embodiment is partially changed. is there. In the injection mold 1 according to this embodiment, the first fixed-side resistance heater 83 of the fixed-side cavity piece 5 and the first movable-side resistance heater 84 of the movable-side cavity piece 37 are the first fixed in the second embodiment. Except for the differences from the side resistance heater 15 and the first movable side resistance heater 46, other configurations are the same as those of the injection mold 1 according to the second embodiment. Accordingly, in the injection mold 1 according to this embodiment, the same components as those of the injection mold 1 according to the second embodiment shown in FIG. The description which overlaps with the description of the injection mold 1 will be omitted.

本実施形態に係る射出成形金型１は、固定側キャビティ駒５の外周面５ａに、第１固定側抵抗加熱ヒータ８３としてのコイルヒータがフレキシブルヒータに代えて嵌合されている。また、本実施形態に係る射出成形金型１は、可動側キャビティ駒３７の外周面３７ａに、第１可動側抵抗加熱ヒータ８４としてのコイルヒータがフレキシブルヒータに代えて嵌合されている。   In the injection mold 1 according to this embodiment, a coil heater as a first fixed-side resistance heater 83 is fitted to the outer peripheral surface 5a of the fixed-side cavity piece 5 in place of the flexible heater. In the injection mold 1 according to this embodiment, a coil heater as the first movable resistance heater 84 is fitted to the outer peripheral surface 37a of the movable cavity piece 37 instead of the flexible heater.

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第７実施形態］
図１８は、本発明の第７実施形態に係る射出成形金型１の断面図であり、第１実施形態の射出成形金型１の構成を一部変更した射出成形金型１の断面図である。本実施形態に係る射出成形金型１は、第２固定側金型本体１１と第２可動側金型本体４２が省略されている点を除き、他の構成が第１実施形態に係る射出成形金型１と同様である。したがって、本実施形態に係る射出成形金型１は、図１に示した第１実施形態に係る射出成形金型１と同一の構成部分に同一符号を付し、第１実施形態に係る射出成形金型１の説明と重複する説明を省略する。 [Seventh Embodiment]
FIG. 18 is a cross-sectional view of an injection mold 1 according to the seventh embodiment of the present invention, and is a cross-sectional view of the injection mold 1 in which the configuration of the injection mold 1 of the first embodiment is partially changed. is there. The injection mold 1 according to the present embodiment is the same as the injection mold according to the first embodiment except that the second fixed-side mold body 11 and the second movable-side mold body 42 are omitted. The same as the mold 1. Therefore, in the injection mold 1 according to the present embodiment, the same reference numerals are given to the same components as those of the injection mold 1 according to the first embodiment shown in FIG. 1, and the injection mold according to the first embodiment. A duplicate description of the mold 1 is omitted.

本実施形態に係る射出成形金型１は、第１実施形態に係る射出成形金型１と同様の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the same effects as the injection mold 1 according to the first embodiment.

［第８実施形態］
図１９は、本発明の第８実施形態に係る射出成形金型１を説明するための図である。なお、図１９（ａ）は、キャビティ駒８５の外観斜視図であり、内部の第１温度調節流路８６及び第１抵抗加熱ヒータ８７を透視できるように描いたキャビティ駒８５の外観斜視図である。また、図１９（ｂ）は、キャビティ駒８５を断熱材８８を介して金型本体９０に固定した状態を示す図であり、キャビティ駒８５を正面側から見た図である。 [Eighth Embodiment]
FIG. 19 is a view for explaining an injection mold 1 according to the eighth embodiment of the present invention. FIG. 19A is an external perspective view of the cavity piece 85, and is an external perspective view of the cavity piece 85 drawn so that the first temperature control flow path 86 and the first resistance heater 87 inside can be seen through. is there. FIG. 19B is a view showing a state in which the cavity piece 85 is fixed to the mold main body 90 via the heat insulating material 88, and is a view of the cavity piece 85 seen from the front side.

本実施形態に係るキャビティ駒８５は、平面視した形状が矩形形状のベース板９１の上に、第１乃至第３の角棒状ブロック９２ａ〜９２ｃを密着させて並べたような形状になっている。このキャビティ駒８５は、組み合わされる他のキャビティ駒９３との間にキャビティ９４を形成するようになっており、外表面９５ａ〜９５ｇがキャビティ形成部分になっている。そして、このキャビティ駒８５の内部には、第１温度調節流路８６が形成されている。この第１温度調節流路８６は、キャビティ駒８５の外表面９５ａ〜９５ｇに沿うように、キャビティ駒８５の外表面９５ａ〜９５ｇの近傍に形成され、一端から他端まで一筆書き状に連続して形成されており、一端が第１の流体又は第２の流体を流入させる流体導入路９６に接続され、他端が流体排出路９７に接続されている。また、キャビティ駒８５は、ベース板９１側に第１抵抗加熱ヒータ８７としてのフレキシブルヒータが収容されている。この第１抵抗加熱ヒータ８７は、ベース板９１の底面側に形成されたヒータ収容溝内に収容され、一部がキャビティ駒８５の外表面９５ａ，９５ｄ，９５ｇの近傍に位置している。なお、第１の流体と第２の流体は、第１温度調節流路８６に交互に供給される。また、金型本体９０は、図示しない第２温度調節流路と第２抵抗加熱ヒータの少なくとも一つが配置され、成形品の取り出し温度に維持されるようになっている。   The cavity piece 85 according to the present embodiment has such a shape that the first to third square bar-shaped blocks 92a to 92c are arranged in close contact with each other on a base plate 91 having a rectangular shape in plan view. . The cavity piece 85 forms a cavity 94 between other cavity pieces 93 to be combined, and outer surfaces 95a to 95g are cavity forming portions. A first temperature control flow path 86 is formed inside the cavity piece 85. The first temperature control flow path 86 is formed in the vicinity of the outer surfaces 95a to 95g of the cavity piece 85 so as to extend along the outer surfaces 95a to 95g of the cavity piece 85, and is continuous in a single stroke from one end to the other end. One end is connected to a fluid introduction path 96 through which the first fluid or the second fluid flows, and the other end is connected to a fluid discharge path 97. The cavity piece 85 houses a flexible heater as the first resistance heater 87 on the base plate 91 side. The first resistance heater 87 is housed in a heater housing groove formed on the bottom surface side of the base plate 91, and a part thereof is positioned in the vicinity of the outer surfaces 95 a, 95 d, and 95 g of the cavity piece 85. Note that the first fluid and the second fluid are alternately supplied to the first temperature control flow path 86. In addition, the mold body 90 is provided with at least one of a second temperature adjusting flow path and a second resistance heater (not shown) so as to be maintained at a temperature for taking out the molded product.

本実施形態に係る射出成形金型１は、第１実施形態の射出成形金型１と同様に、ヒート＆クール成形技術の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the effects of the heat and cool molding technique, similarly to the injection mold 1 of the first embodiment.

［第９実施形態］
図２０は、本発明の第９実施形態に係る射出成形金型１を説明するための図であり、第８実施形態に係る射出成形金型１の変形例を示す図である。なお、図２０（ａ）は、キャビティ駒８５の外観斜視図であり、内部の第１温度調節流路８６及び第１抵抗加熱ヒータ９８を透視できるように描いたキャビティ駒８５の外観斜視図である。また、図２０（ｂ）は、キャビティ駒８５を断熱材８８を介して金型本体９０に固定した状態を示す図であり、キャビティ駒８５を正面側から見た図である。 [Ninth Embodiment]
FIG. 20 is a view for explaining an injection mold 1 according to the ninth embodiment of the present invention, and is a view showing a modification of the injection mold 1 according to the eighth embodiment. 20A is an external perspective view of the cavity piece 85, and is an external perspective view of the cavity piece 85 drawn so that the first temperature control flow path 86 and the first resistance heater 98 inside can be seen through. is there. FIG. 20B is a view showing a state in which the cavity piece 85 is fixed to the mold body 90 via the heat insulating material 88, and is a view of the cavity piece 85 as seen from the front side.

本実施形態に係るキャビティ駒８５は、第８実施形態に係るフレキシブルヒータに代えて、第１抵抗加熱ヒータ９８としての棒状ヒータが複数設置されている。これら第１抵抗加熱ヒータ（棒状ヒータ）９８は、キャビティ駒８５の外表面（キャビティ形成部分）９５ａ〜９５ｇの近傍に位置するように設置されている。なお、本実施形態に係るキャビティ駒８５は、第１抵抗加熱ヒータ９８の構成を除き、他の構成が第８実施形態に係るキャビティ駒８５と共通するので、第８実施形態に係るキャビティ駒８５と共通する構成部分に同一符号を付し、重複する説明を省略する。   The cavity piece 85 according to the present embodiment is provided with a plurality of bar heaters as the first resistance heater 98 instead of the flexible heater according to the eighth embodiment. These first resistance heaters (bar heaters) 98 are installed so as to be positioned in the vicinity of the outer surfaces (cavity forming portions) 95a to 95g of the cavity piece 85. Since the cavity piece 85 according to the present embodiment has the same configuration as the cavity piece 85 according to the eighth embodiment except for the structure of the first resistance heater 98, the cavity piece 85 according to the eighth embodiment. The same reference numerals are given to the same components as those in FIG.

本実施形態に係る射出成形金型１は、第１実施形態と同様に、ヒート＆クール成形技術の効果を得ることができる。   The injection mold 1 according to the present embodiment can obtain the effect of the heat and cool molding technique as in the first embodiment.

１……射出成形金型、４……キャビティ、５……固定側キャビティ駒（キャビティ駒）６……固定側金型本体（金型本体）、７……断熱材、１２……第２固定側温度調節流路（第２温度調節流路）、１３……第１固定側温度調節流路（第１温度調節流路）、１４……第２固定側抵抗加熱ヒータ（第２抵抗加熱ヒータ）、１５……第１固定側抵抗加熱ヒータ（第１抵抗加熱ヒータ）、１６……固定側キャビティ形成部分（キャビティ形成部分）、１７……可動側キャビティ形成部分（キャビティ形成部分）、３７……可動側キャビティ駒（キャビティ駒）、３８……可動側金型本体（金型本体）、４３……第２可動側温度調節流路（第２温度調節流路）、４４……第１可動側温度調節流路（第１温度調節流路）、４５……第２可動側抵抗加熱ヒータ（第２抵抗加熱ヒータ）、４６……第１可動側抵抗加熱ヒータ（第１抵抗加熱ヒータ）   DESCRIPTION OF SYMBOLS 1 ... Injection molding die, 4 ... Cavity, 5 ... Fixed side cavity piece (cavity piece) 6 ... Fixed side die main body (mold main body), 7 ... Thermal insulation, 12 ... Second fixing Side temperature control flow path (second temperature control flow path), 13... First fixed side temperature control flow path (first temperature control flow path), 14... Second fixed side resistance heater (second resistance heater) ), 15... First fixed side resistance heater (first resistance heater), 16... Fixed side cavity forming portion (cavity forming portion), 17... Movable side cavity forming portion (cavity forming portion), 37. ... movable side cavity piece (cavity piece), 38 ... movable side mold body (die body), 43 ... second movable side temperature control channel (second temperature control channel), 44 ... first movable Side temperature control flow path (first temperature control flow path), 45... Data (second resistance heater), 46 ...... first movable-side resistance heater (first resistance heater)

Claims (9)

キャビティ内に溶融樹脂を射出する射出成形金型において、
キャビティ形成部分を有するキャビティ駒と、このキャビティ駒が取り付けられる金型本体とを有し、
前記キャビティ駒は、流体が流動する第１温度調節流路と、通電により発熱する第１抵抗加熱ヒータとが配置され、
前記金型本体は、流体が流動する第２温度調節流路と通電により発熱する第２抵抗加熱ヒータの少なくとも一つが配置され、前記第２温度調節流路を流動する流体と前記第２抵抗加熱ヒータの少なくとも一つによって成形品の取り出し温度に維持され、
前記キャビティ駒と前記金型本体との間には、断熱材が介装され、
前記第１温度調節流路及び前記第１抵抗加熱ヒータの少なくとも一部は、前記キャビティ形成部分の近傍に配置され、
前記第１温度調節流路は、第１の流体と第２の流体が交互に流動させられ、
前記第１の流体は、前記キャビティ駒を成形品の取り出し温度以上の温度まで加熱する高温水又は蒸気であり、
前記第２の流体は、前記キャビティ駒を成形品の取り出し温度まで冷却する低温水である、
ことを特徴とする射出成形金型。 In an injection mold that injects molten resin into the cavity,
A cavity piece having a cavity forming portion, and a mold body to which the cavity piece is attached,
The cavity piece is provided with a first temperature control channel through which a fluid flows and a first resistance heater that generates heat when energized,
The mold body is provided with at least one of a second temperature control flow path through which a fluid flows and a second resistance heater that generates heat when energized, and the fluid flowing through the second temperature control flow path and the second resistance heating. At least one of the heaters maintains the temperature at which the molded product is removed,
Between the cavity piece and the mold body, a heat insulating material is interposed,
At least a part of the first temperature control flow path and the first resistance heater is disposed in the vicinity of the cavity forming portion,
In the first temperature control channel, the first fluid and the second fluid are alternately flowed,
The first fluid is high-temperature water or steam that heats the cavity piece to a temperature equal to or higher than the removal temperature of the molded product,
The second fluid is low-temperature water that cools the cavity piece to a temperature at which a molded product is taken out.
An injection mold characterized by that. 前記キャビティ駒は、略円柱形状であり、中心軸に沿った方向の一端側に前記キャビティ形成部分が形成され、
前記第１温度調節流路は、前記キャビティ駒の内部に一筆書き状に連続するように形成された二条の螺旋状流路を有し、前記二条の螺旋状流路の一端が流体導入路に接続され、前記二条の螺旋状流路の他端が流体排出路に接続された、
ことを特徴とする請求項１に記載の射出成形金型。 The cavity piece has a substantially cylindrical shape, and the cavity forming portion is formed on one end side in the direction along the central axis,
The first temperature control flow path has a double spiral flow path formed in the cavity piece so as to be continuous in a single stroke, and one end of the double spiral flow path is connected to a fluid introduction path. The other end of the two spiral flow paths is connected to the fluid discharge path,
The injection mold according to claim 1. 前記キャビティ駒は、略円柱形状であり、中心軸に沿った方向の一端側に前記キャビティ形成部分が形成され、
前記第１温度調節流路は、前記キャビティ駒の内部に形成され、略Ｃ形状の円弧状流路が前記中心軸に沿って間隔を開けて複数（１〜ｎ）形成され、前記円弧状流路を前記中心軸の他端側から一端側へ向けて順次第１乃至第ｎ円弧状流路とすると、前記第１円弧状流路の一端が流体導入路と流体排出路のいずれか一方に接続され、前記第１円弧状流路の他端が第２円弧状流路の他端に第１接続路を介して接続され、前記第ｎ円弧状流路の一端が第（ｎ−１）円弧状流路の一端と第（ｎ−１）接続路を介して接続され、前記第ｎ円弧状流路の他端が前記流体導入路と前記流体排出路のいずれか他方に接続され、前記第２円弧状流路の一端から前記第（ｎ−１）円弧状流路の他端までが第２乃至第（ｎ−２）接続路のうちの一つで一筆書き状に連続するように接続された、
ことを特徴とする請求項１に記載の射出成形金型。 The cavity piece has a substantially cylindrical shape, and the cavity forming portion is formed on one end side in the direction along the central axis,
The first temperature control channel is formed inside the cavity piece, and a plurality of (1 to n) substantially C-shaped arc-shaped channels are formed at intervals along the central axis. When the first to nth arc-shaped flow paths are sequentially formed from the other end side to the one end side of the central axis, one end of the first arc-shaped flow path is connected to one of the fluid introduction path and the fluid discharge path. The other end of the first arcuate channel is connected to the other end of the second arcuate channel via the first connection channel, and one end of the nth arcuate channel is the (n-1) th circle. One end of the arc-shaped flow path is connected to the other end of the fluid introduction path and the fluid discharge path, and the other end of the n-th arc-shaped flow path is connected to the other of the fluid introduction path and the fluid discharge path. One end of the two arc-shaped flow paths to the other end of the (n-1) th arc-shaped flow path is connected in one stroke in one of the second to (n-2) connection paths. It connected to,
The injection mold according to claim 1. 前記キャビティ駒は、略円柱形状であり、中心軸に沿った方向の一端側に前記キャビティ形成部分が形成され、
前記第１温度調節流路は、前記キャビティ駒の内部に形成され、前記キャビティ形成部分の近傍に位置する流体溜まりと、前記流体溜まりに流体を案内する流体導入路と、前記流体溜まりから流体を排出する流体排出路と、を有する、
ことを特徴とする請求項１に記載の射出成形金型。 The cavity piece has a substantially cylindrical shape, and the cavity forming portion is formed on one end side in the direction along the central axis,
The first temperature control flow path is formed inside the cavity piece, a fluid reservoir located in the vicinity of the cavity forming portion, a fluid introduction path for guiding fluid to the fluid reservoir, and discharging the fluid from the fluid reservoir. A fluid discharge path to
The injection mold according to claim 1. 前記第１抵抗加熱ヒータは、フレキシブルヒータであって、前記キャビティ駒の外周面に螺旋状に形成されたヒータ収容溝内に収容され、
前記フレキシブルヒータの外周側に円筒状の遮熱体が嵌合された、
ことを特徴とする請求項２乃至４のいずれかに記載の射出成形金型。 The first resistance heater is a flexible heater, and is housed in a heater housing groove formed in a spiral shape on the outer peripheral surface of the cavity piece,
A cylindrical heat shield was fitted to the outer peripheral side of the flexible heater,
An injection mold according to any one of claims 2 to 4, characterized in that: 前記第１抵抗加熱ヒータは、コイルヒータであって、前記キャビティ駒の外周面に嵌合され、
前記コイルヒータの外周側に円筒状の遮熱体が嵌合された、
ことを特徴とする請求項２乃至４のいずれかに記載の射出成形金型。 The first resistance heater is a coil heater, which is fitted to the outer peripheral surface of the cavity piece,
A cylindrical heat shield was fitted to the outer peripheral side of the coil heater,
An injection mold according to any one of claims 2 to 4, characterized in that: 前記第１抵抗加熱ヒータは、棒状ヒータであって、前記キャビティ駒の内部で且つ前記中心軸に沿う位置に配置され、
前記キャビティ駒の外周側に円筒状の遮熱体が嵌合された、
ことを特徴とする請求項２乃至４のいずれかに記載の射出成形金型。 The first resistance heater is a rod-shaped heater, disposed inside the cavity piece and at a position along the central axis,
A cylindrical heat shield is fitted to the outer peripheral side of the cavity piece,
An injection mold according to any one of claims 2 to 4, characterized in that: キャビティ内に溶融樹脂を射出する射出成形金型の制御方法において、
前記射出成形金型は、キャビティ形成部分を有するキャビティ駒と、このキャビティ駒が取り付けられる金型本体とを有し、
前記キャビティ駒は、流体が流動する第１温度調節流路と、通電により発熱する第１抵抗加熱ヒータとが配置され、
前記金型本体は、流体が流動する第２温度調節流路と通電により発熱する第２抵抗加熱ヒータの少なくとも一つが配置され、前記第２温度調節流路を流動する流体と前記第２抵抗加熱ヒータの少なくとも一つによって成形品の取り出し温度に維持され、
前記キャビティ駒と前記金型本体との間には、断熱材が介装され、
前記第１温度調節流路及び前記第１抵抗加熱ヒータの少なくとも一部は、前記キャビティ形成部分の近傍に配置され、
前記第１温度調節流路は、第１の流体と第２の流体が交互に流動させられ、
前記第１の流体は、前記キャビティ駒を成形品の取り出し温度以上の温度まで加熱する高温水又は蒸気であり、前記第１の抵抗加熱ヒータが通電されると同時に前記第１温度調節流路を流動させられ、前記キャビティ形成部分の近傍の温度が成形品の取り出し温度以上の第１の設定温度に到達すると前記第１温度調節流路から排出され、
前記第１の抵抗加熱ヒータは、前記キャビティ形成部分の近傍の温度が前記第１の設定温度以上の温度で且つ前記溶融樹脂の射出成形に適した温度である第２の設定温度に到達すると通電が遮断され、
前記第２の流体は、前記キャビティ駒を成形品の取り出し温度まで冷却する低温水であり、前記第１の抵抗加熱ヒータへの通電が遮断された後に前記第１温度調節流路を流動させられ、前記キャビティ形成部分の近傍の温度が前記成形品の取り出し温度まで低下すると前記第１温度調節流路から排出される、
ことを特徴とする射出成形金型の制御方法。 In the control method of the injection mold for injecting molten resin into the cavity,
The injection mold has a cavity piece having a cavity forming portion, and a mold body to which the cavity piece is attached,
The cavity piece is provided with a first temperature control channel through which a fluid flows and a first resistance heater that generates heat when energized,
The mold body is provided with at least one of a second temperature control flow path through which a fluid flows and a second resistance heater that generates heat when energized, and the fluid flowing through the second temperature control flow path and the second resistance heating. At least one of the heaters maintains the temperature at which the molded product is removed,
Between the cavity piece and the mold body, a heat insulating material is interposed,
At least a part of the first temperature control flow path and the first resistance heater is disposed in the vicinity of the cavity forming portion,
In the first temperature control channel, the first fluid and the second fluid are alternately flowed,
The first fluid is high-temperature water or steam that heats the cavity piece to a temperature that is equal to or higher than the temperature at which the molded product is taken out. When the temperature in the vicinity of the cavity forming portion reaches a first set temperature that is equal to or higher than the take-out temperature of the molded product, the fluid is discharged from the first temperature control flow path,
The first resistance heater is energized when a temperature in the vicinity of the cavity forming portion reaches a second set temperature that is equal to or higher than the first set temperature and suitable for injection molding of the molten resin. Is shut off,
The second fluid is low-temperature water that cools the cavity piece to the temperature at which the molded product is taken out, and is flowed through the first temperature control flow path after the power supply to the first resistance heater is interrupted. , When the temperature in the vicinity of the cavity forming portion is reduced to the take-out temperature of the molded product, it is discharged from the first temperature control flow path.
An injection mold control method characterized by the above. 前記第１温度調節流路は、前記第１の抵抗加熱ヒータへの通電が遮断された後、前記第２の流体が流動させられる前に、圧縮空気が注入される、
ことを特徴とする請求項８に記載の射出成形金型の制御方法。 The first temperature control flow path is injected with compressed air before the second fluid is made to flow after the energization to the first resistance heater is interrupted.
The method for controlling an injection mold according to claim 8.
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