JP3138653B2 - Injection molding machine - Google Patents

Injection molding machine

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JP3138653B2
JP3138653B2 JP09040259A JP4025997A JP3138653B2 JP 3138653 B2 JP3138653 B2 JP 3138653B2 JP 09040259 A JP09040259 A JP 09040259A JP 4025997 A JP4025997 A JP 4025997A JP 3138653 B2 JP3138653 B2 JP 3138653B2
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material
resin material
metering chamber
injection
color
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JPH10235700A (en
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重敏 三山
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三山化成株式会社
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Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は射出機、特に、可塑化樹脂をプランジャで押し出す形式の射出機に関するもので、溶融状態にあるアルミニウム等の非鉄金属を成形するダイキャスト成形等にも利用できる。 TECHNICAL FIELD The present invention is an injection machine, in particular, relates to an injection machine of the type extruding the plasticized resin with a plunger, it can also be used for die casting or the like for forming a non-ferrous metal such as aluminum in a molten state .

【0002】 [0002]

【従来の技術】図2は従来の射出機の要部の断面図を示している。 BACKGROUND OF THE INVENTION Figure 2 shows a sectional view of a main portion of a conventional injection machine. 押出用シリンダ(22)とこれに装填されたスクリュ(21)を具備する押出機(2) の樹脂吐出口(24)は、射出機(1) の材料供給路(13)の上流端に接続されており、 Resin discharge port of the extrusion cylinder (22) and which in the loaded screw (21) extruder having a (2) (24) is connected to the upstream end of the material supply passage of the injection machine (1) (13) It has been,
該材料供給路(13)の下流端(130) は、射出用シリンダ(1 Material supply path downstream end (13) (130), the injection cylinder (1
2)内に形成された計量室(15)の内周壁の上部コーナ部(1 Upper corner portion of the inner peripheral wall 2) formed in the metering chamber (15) (1
52) に接続されている。 It is connected to 52). 又、計量室(15)内にはプランジャ(11)が摺動自在に収容されていると共に、該計量室(1 Moreover, the metering chamber with the plunger (11) is slidably accommodated in (15), the metering chamber (1
5)の下流端からは図示しない金型内に樹脂材料を注入する吐出路(17)が延びている。 Discharge passage for injecting the resin material (17) extends into the mold (not shown) from the downstream end of 5).

【0003】このものでは、可塑化された樹脂材料が押出機(2) の樹脂吐出口(24)から吐出されると、これが材料供給路(13)の下流端(130) から射出用シリンダ(12)の計量室(15)内に貯留され、その後、プランジャ(11)が進出せしめられて計量室(15)内の樹脂材料が吐出路(17)から図示しない金型内に射出される。 [0003] In this construction, when plasticized resin material is discharged from the resin discharge port of the extruder (2) (24), which is the injection cylinder from the downstream end of the material supply passage (13) (130) ( stored in 12) of the metering chamber (15), then the plunger (11) is a resin material of the metering chamber (15) is caused to advance is injected into the mold (not shown) from the discharge passage (17).

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、上記従来の射出機では、成形品の色彩を変更すべく吐出路(17) [SUMMARY OF THE INVENTION However, in the conventional injection machine, in order to change the color of the molded article ejection path (17)
から射出する樹脂材料を異なった色彩のものに切り替える場合に、該色彩の切り替え作業が速やかに行えないと言う問題があった。 When switching to what color the resin material different emitted from switching operations of the color saturation there is a problem that not promptly performed. 上記問題点について更に詳述する。 It will be described in more detail above-mentioned problems.

【0005】上記従来のものに於いて成形品の色彩を変更する場合、新たな色彩の樹脂材料を押出機(2) から吐出させると共に、材料供給路(13)や計量室(15)内に残存する元の色彩の樹脂材料が無くなるまでプランジャ(11) [0005] When changing the color of the molded article at those of the prior, the eject a new color of the resin material from the extruder (2), the material supply passage (13) and measuring chamber (15) in the until the resin material of the original color remaining disappears plunger (11)
を進退動作させて射出動作を繰り返す。 The repeated injection operation by forward and backward movement. そして、吐出路 Then, discharge passage
(17)の下流端から新たな色彩の樹脂材料が吐出されたことが確認されると、その後に該色彩の樹脂材料による射出成形を開始する。 (17) When the resin material of the new color from the downstream end that is ejected is confirmed, and then to start the injection molding of a resin material the color saturation. ところが、同図の想像線で示すように、最も進出した状態にあるプランジャ(11)の先端面とこれに対向する計量室(15)の内面との間には若干のクリアランス(G) が確保されている。 However, as shown in phantom in the figure, the most a slight clearance between the inner surface of the advanced state in the plunger tip surface and the metering chamber opposed thereto of (11) (15) (G) is secured It is. 射出時にプランジャ(1 The plunger at the time of injection (1
1)の先端がこれに対向する計量室(15)の内面に衝突するのを回避して、これらの損傷を防止するためである。 To avoid colliding with the inner surface of the metering chamber tip 1) is opposed to (15), in order to prevent these damages. 従って、プランジャ(11)を進出させても前記クリアランス Therefore, the clearance even if advances the plunger (11)
(G) 部の樹脂は射出されずに計量室(15)内に残存してしまう。 (G) portion of the resin remained to the metering chamber (15) without being emitted. そして、前記クリアランス(G) 部に残存する元の色彩の樹脂材料は、計量室(15)の壁面を伝ってその下流端の下部コーナ部(151) に垂れ落ちて該部分に残存し、 Then, the resin material of the original color remaining in the clearance (G) unit is to remain in partial and drip to the lower corner portion of the downstream end thereof along the wall surface of the metering chamber (15) (151),
これが、吐出路(17)側に円滑に吐出されない。 This is not smoothly discharged to the discharge passage (17) side. このことから、新たな色彩の樹脂材料が吐出路(17)から吐出され始めても、計量室(15)の下部コーナ部(151) に残存した元の色彩の樹脂材料が新たな樹脂材料に混入して徐々に吐出され、新たな色彩の樹脂材料への切り替えが速やかに行えないのである。 Contamination Therefore, even if the new color of the resin material starts discharged from the discharge passage (17), a new resin material original color of the resin material remaining in the lower corner portion (151) of the metering chamber (15) and gradually discharged, is the switch to a new color of the resin material that is not promptly done.

【0006】尚、上記に於いては、色彩の変更を行う場合の問題点について記載したが、使用する樹脂材料を融点や硬度等の特性が異なるものに切り替える場合も上記と同様の問題がある。 [0006] Note that in the above-mentioned, have been described problems when changing color, there is a similar problem as described above when switching to the resin material to be used properties such as melting point and hardness different . 又、押出機(2) から吐出させたアルミニウム等の溶融金属をプランジャ(11)で射出するダイキャクト成形をする場合も上記と同様の問題がある。 Also, there is the same problem as also the case of the Daikyakuto molding for injecting a molten metal such as aluminum that has discharged from the extruder (2) with a plunger (11).

【0007】本願は上記の点に鑑みて成されたもので、 [0007] The present has been made in view of the above,
本発明は材料の変更に速やかに対応できる射出機を提供することを課題とする。 The present invention aims to provide an injection machine which can quickly respond to changes in the material.

【0008】 [0008]

【課題を解決するための手段】上記課題を解決する為に採用した請求項1の発明の技術的手段は、『略水平に設定された中心軸を有する柱状の計量室(15)と、前記計量室(15)の軸線方向の下流端から引き出された吐出路(17) Technical means of the invention of claim 1 employing in order to solve the above problems, there is provided a means for solving] The columnar measuring chamber having a central axis that is set to "substantially horizontal (15), wherein discharge passage drawn from the downstream end of the axial metering chamber (15) (17)
と、前記計量室(15)内の材料を前記吐出路(17)に吐出させる為のプランジャ(11)と、前記計量室(15)の底壁の下流端に繋がる材料供給路(13)とを具備する』ことである。 When the plunger for ejecting the material of the measuring chamber (15) in said discharge passage (17) (11), material supply passage connected to the downstream end of the bottom wall of said metering chamber (15) and (13) including a "that is. なお、前記材料は、熱可塑性の樹脂材料であってもよい(請求項2)。 Incidentally, the material may be a thermoplastic resin material (claim 2).

【0009】上記発明では、材料供給路(13)が計量室(1 [0009] In the invention, the material supply passage (13) is measuring chamber (1
5)の底壁の下流端に繋がっている。 5) are connected to the downstream end of the bottom wall of the. 従って、前回の射出時に吐出路(17)側に射出されなかった材料が残存し易い計量室(15)の底壁の下流端に新たな材料が材料供給路(1 Therefore, the discharge passage during the previous injection (17) material which has not been injected remains in side easily measuring chamber (15) a new material in material supply passage at a downstream end of the bottom wall of the (1
3)から注入される。 It is injected from 3). 従って、前記計量室(15)の底壁の下流端に残っている材料が、材料供給路(13)から注入される新たな材料と共に流動して計量室(15)内全体に拡散し、その後、プランジャ(11)で吐出路(17)側に射出される。 Thus, the material remaining downstream end of the bottom wall of the metering chamber (15), and flows together with the new material injected from the material feed channel (13) spread throughout the metering chamber (15), then , it is injected into the discharge passage (17) side by the plunger (11). 即ち、上記技術的手段によれば、計量室(15)の底壁の下流端には材料供給路(13)からの新たな材料が常に注入された状態になり、該部分に古い材料が残存することがなくなる。 That is, according to the above technical means, ready to new material is constantly injected from the material supply passage at the downstream end of the bottom wall (13) of the metering chamber (15), the old material partial residual it is not necessary to.

【0010】 [0010]

【0011】 [0011]

【0012】 [0012]

【発明の効果】以上説明したように、本発明によれば、 As described in the foregoing, according to the present invention,
前回の射出時に吐出路(17)側に射出されなかった材料が残存し易い計量室(15)の底壁の下流端には材料供給路(1 Material supply passage at the downstream end of the bottom wall of the discharge passage during the previous injection (17) material which has not been injected remaining on side easily measuring chamber (15) (1
3)からの新たな材料が常に注入された状態になって、該部分には古い材料が残存しない。 Ready to new material is constantly injected from 3), the old material does not remain in the partial. 従って、材料の種類や色彩を切り替える場合にも、切り替える前の古い色彩等の材料が速やかに計量室(15)から排出され、該色彩等の切り替えに速やかに対応できる射出機が提供できる。 Therefore, even when switching the type and color of the material is discharged from the front of the old color such materials quickly metering chamber (15) for switching an injection machine can quickly corresponding to the switching of such the color saturation can be provided.

【0013】 [0013]

【0014】 [0014]

【発明の実施の形態】次に、上記した発明の実施の形態を説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the embodiments of the invention described above. 図1は、本発明の実施の形態に係る射出機が組み込まれているプリプラ式の射出成形装置の部分断面図であり、本発明の対象たる射出機(1) とこれに樹脂材料を供給する押出機(2) とから構成されている。 Figure 1 is a partial sectional view of an injection molding apparatus preplasticization the injection machine is built according to the embodiment of the present invention supplies the resin material object serving injector (1) to the present invention is constructed from the extruder (2).

【0015】押出機(2) のスクリュ(21)は押出用シリンダ(22)に挿入されていると共に、該押出用シリンダ(22) [0015] screw extruder (2) (21) with is inserted into the extrusion cylinder (22), the extrusion cylinder (22)
の後端部には、上記スクリュ(21)を回転させる回転駆動装置(26)が設けられている。 The rear end portion of the rotary drive device (26) is provided for rotating the screw (21). 又、上記押出用シリンダ(2 Moreover, the extrusion cylinder (2
2)の後端部近傍の上面には、熱可塑性の樹脂材料を供給するホッパ(27)が連設されていると共に、該押出用シリンダ(22)の外周には樹脂材料を可塑化する為のヒータ(2 The rear end upper surface in the vicinity of 2), with a hopper supplying the thermoplastic resin material (27) is continuously provided, in order to plasticize the resin material on the outer periphery of the extrusion cylinder (22) of the heater (2
0)が添設されている。 0) it is additionally provided.

【0016】押出機(2) の先端部、即ち、下流側端部に形成された樹脂吐出口(24)は、射出機(1) の材料供給路 The tip of the extruder (2), i.e., the downstream side end portion in the formed resin discharge outlet (24), the material supply passage of the injection machine (1)
(13)の上流端部に接続されている。 It is connected to the upstream end portion (13). 射出機(1) に形成された上記材料供給路(13)は、上記押出機(2) 側に繋がる傾斜路(131) とその先端に続く鉛直路(132) と更に該鉛直路(132) の先端から分岐する第1,第2分岐路(133) The material supply passage formed in the injection machine (1) (13), the extruder (2) leading to the side ramp (131) and a vertical path followed by a tip (132) further 該鉛 straight path (132) first, second branch passage branching from the tip (133)
(134) を具備している。 Are provided with a (134).

【0017】前者の第1分岐路(133) は、略水平に設定された中心軸を具備する円柱状の計量室(15)の下流端近傍の上部コーナ部(152) に接続されている。 [0017] The first branch of the former (133) is connected to the downstream end upper corner portion in the vicinity of a cylindrical metering chamber having a central axis which is set substantially horizontally (15) (152). 又、該計量室(15)は射出用シリンダ(12)の先端部に位置しており更に該計量室(15)の外壁面にはヒータ(16)が添設されている。 Further, the metering chamber (15) is additionally provided a heater (16) is on an outer wall surface of the injection cylinder (12) of the tip portion further located in said weighing chamber (15). 一方、材料供給路(13)に於ける前記第2分岐路(13 Meanwhile, in the second branch passage to the material supply passage (13) (13
4) の下流端(130) は、計量室(15)の底壁の下流端に位置する下部コーナ部(151) に繋がっていると共に、該第2分岐路(134) の途中は、計量室(15)の軸線方向の下流端から引き出された直線状の吐出路(17)を迂回するように曲成されている。 4 the downstream end of) (130) is with and connected to the lower corner portion (151) located at the downstream end of the bottom wall of the metering chamber (15), the middle of the second branch channel (134), the metering chamber It is bent so as to bypass the straight discharge passage drawn from the downstream end of the axial (15) (17). 又、上記吐出路(17)と計量室(15)の中心軸は一直線状に並んでいると共に、計量室(15)の下流側の先端面(153) は円錐状に形成されており、その頂点に吐出路(17)の上流端が接続されている。 Further, the discharge passage (17) and the metering chamber central axis (15) with are arranged in a straight line, downstream of the distal end surface of the metering chamber (15) (153) is formed in a conical shape, its the upstream end of the discharge passage (17) is connected to the vertex.

【0018】上記計量室(15)内にはプランジャ(11)が挿入されており、該プランジャ(11)の外周と計量室(15)の内周は樹脂材料が侵入しない程度に密に接触している。 [0018] The above measuring chamber (15) and plunger (11) is inserted, the outer peripheral and the inner periphery of the metering chamber (15) of the plunger (11) is in intimate contact such that the resin material does not enter ing.
又、プランジャ(11)の先端面(113) は計量室(15)の上記先端面(153) と一致する円錐状に形成されていると共に、該プランジャ(11)は油圧シリンダ(116) のピストン Further, the piston of the plunger tip surface (11) (113) together are formed in a conical shape matching the distal end surface of the metering chamber (15) (153), said plunger (11) is a hydraulic cylinder (116)
(115) と連結されたロッド(114) の先端部に連設されている。 It is continuously provided to the distal end portion of the connecting rods (114) and (115). 又、計量室(15)と同軸状に位置する吐出路(17)の下流端にはノズル(3) が接続されており、該ノズル(3) Further, the downstream end of the metering chamber (15) and the discharge passage which is located coaxially (17) is connected to the nozzle (3), the nozzle (3)
から図示しない金型に樹脂材料が射出されるようになっている。 Resin material is adapted to be injected into the mold (not shown) from.

【0019】次に、材料供給路(13)の傾斜路(131) と鉛直路(132) の接続部たる弁口(136)には、円柱状の摺動弁(41)が対応しており、該摺動弁(41)によって弁口(13 Next, the connecting portion serving as the valve port of the ramp of the material supply channel (13) (131) and vertical channel (132) (136), a cylindrical sliding valve (41) corresponds , valve port by sliding valve operating (41) (13
6) の開度が調整されると共に該弁口(136) が開閉されるようになっている。 Valve port (136) is adapted to be opened and closed with the opening of the 6) is adjusted. 具体的には、摺動弁(41)に連設されたロッド(411) は、駆動装置(412) に接続されており、該駆動装置(412) によって摺動弁(41)が進退移動されて弁口(136) の開度調整及び開閉制御がされるようになっている。 Specifically, the slide valve continuously to (41) rods (411) is connected to a drive device (412), by the drive device (412) is sliding valve (41) is moved forward and backward so that the opening control and the on-off control of the valve port (136) is Te. そして、押出機(2) の作動中に弁口(136) The valve port during operation of the extruder (2) (136)
の開度が調整されると、押出機(2) 内の圧力が調整される。 When the opening degree of the is adjusted, the pressure in the extruder (2) is adjusted. 又、上記弁口(136) の開度調整によって、ホッパ(2 Moreover, the opening adjustment of the valve port (136), the hopper (2
7)から供給された樹脂材料が押出機(2) を通過する所要時間が変化し、これにより該樹脂材料の加熱時間が調整され、該加熱時間の調整と上記押出機(2) 内の圧力調整により、樹脂材料の可塑化の程度、即ち、粘度が所定に設定される。 Resin material supplied from the 7) of the extruder (2) change the amount of time required to pass through the, thereby adjusts the heating time of the resin material, the pressure of the heating time adjustment and the extruder (2) in by adjusting the degree of plasticization of the resin material, i.e., the viscosity is set to a predetermined. 又、摺動弁(41)で弁口(136) が全閉状態に維持されると、射出時(プランジャ(11)の進出時)に樹脂材料が押出機(2) 側に逆流するのが防止されるようになっている。 Further, when the slide valve (41) in the valve port (136) is maintained in the fully closed state, that the resin material (advance when the plunger (11)) during injection from flowing back into the extruder (2) side It is adapted to be prevented.

【0020】次に、上記装置の動作の実際を説明する。 Next, it will be described actual the operation of the device.
顔料と無着色のペレット状の熱可塑性樹脂材料を、ホッパ(27)に投入して図示しない運転スイッチを投入すると、ヒータ(20)が発熱すると共にスクリュ(21)が回転し、ホッパ(27)内の樹脂材料が前記ヒータ(20)の熱等によって押出用シリンダ(22)内で次第に可塑化されて行く。 Of pigment and uncolored pelletized thermoplastic resin material, when turning on the operation switch (not shown) was poured into the hopper (27), the screw (21) is rotated together with the heater (20) generates heat, the hopper (27) resin material of the inner go is increasingly plasticized within extrusion cylinder (22) by heat or the like of the heater (20). 又、この樹脂材料と上記含量は、スクリュ(21)によって均一に混練され、これにより、押出機(2) の樹脂吐出口(24)からは着色された樹脂材料が吐出される。 Further, the resin material and the content is uniformly kneaded by the screw (21), thereby, a resin material colored is discharged from the resin discharge port of the extruder (2) (24). 又、 or,
摺動弁(41)で弁口(136) の開度を所定に設定することによって、上記のように樹脂材料の粘度調整がされ、射出に適した粘度に調整された樹脂材料が樹脂吐出口(24)から吐出される。 By setting the opening degree of the valve port (136) to a predetermined in sliding valve (41), the viscosity adjustment of a resin material as described above is a resin material that is adjusted to a viscosity suitable for injection of the resin discharge port discharged from the (24).

【0021】次に、弁口(136) から材料供給路(13)の鉛直路(132) に吐出された樹脂材料は、第1分岐路(133) Next, valve port resin material discharged vertically passage (132) of the material supply passage from (136) (13), first branch channel (133)
と第2分岐路(134) に分岐して計量室(15)内に注入される。 When injected into the second branch passage branching off metering chamber (134) (15). 即ち、注入工程が実行される。 That is, the injection process is performed. すると、図1の想像線で示す初期位置にあるプランジャ(11)が、第1,第2 Then, the plunger (11) in the initial position shown in phantom in FIG. 1, first, second
分岐路(133) (134) から計量室(15)内に注入される樹脂材料の注入圧力で徐々に後退せしめられる。 Branch channel (133) (134) gradually is retracted by injection pressure of the resin material is injected into the metering chamber (15) from. そして、射出成形に必要な所定量の樹脂材料が計量室(15)内に注入されると、スクリュ(21)が停止すると共に駆動装置(41 When a predetermined amount of the resin material required for injection molding is injected into the metering chamber (15), the drive unit with the screw (21) is stopped (41
2) で摺動弁(41)が降下移動されて弁口(136) が閉鎖状態に維持される。 Sliding valve (41) is lowered moved valve port (136) is maintained in the closed state 2). 次に、油圧シリンダ(116) が作動してプランジャ(11)が進出せしめられ、これにより、計量室 Then, plunger hydraulic cylinder (116) is operated (11) is made to advance, thereby the metering chamber
(15)に貯留された可塑化状態にある樹脂材料が吐出路(1 Resin material discharge passage in the pooled plasticized state (15) (1
7)及びノズル(3) を介して図示しない金型内に射出される。 7) and is injected into the mold (not shown) through the nozzle (3). 即ち、押出工程が実行される。 That is, the extrusion step is performed.

【0022】次に、射出成形する樹脂材料の色彩を切り替える作業について説明する。 Next, a description will be given work to switch the color of the resin material injection molding. 射出成形する樹脂材料の色彩を切り替えるときは、ホッパ(27)に投入する顔料を、新たな色彩のものに変更し、その後、ノズル(3) から吐出される樹脂材料が新たな色彩のものに変化するまで射出動作を繰り返す。 To switch the color of the resin material injection molding, the pigment to be introduced into the hopper (27), and changed to a new color, then the resin material discharged from the nozzle (3) those new colors until the change repeat the injection process. この場合、前回の射出時に吐出路(17)側に射出されなかった樹脂材料が残存している上記計量室(15)の下部コーナ部(151) 部分に第2分岐路(1 In this case, the second branch passage to the lower corner portion (151) portion of the metering chamber discharge passage during the previous injection (17) a resin material that has not been injected in the side is left (15) (1
34) が接続されているから、樹脂材料の色彩を切り替えるべく上記射出動作を繰り返した時に、計量室(15)に新たな色彩の樹脂材料が吐出され始めると、第2分岐路(1 Since 34) is connected, when repeated the injection operation to switch the color of the resin material, the resin material of the new color to the metering chamber (15) starts being discharged, a second branch path (1
34) の下流端(130) から吐出される新たな色彩の樹脂材料が、計量室(15)の先端の下部コーナ部(151) 、即ち、 New color of the resin material discharged from the downstream end (130) of 34), the lower corner portion of the front end of the metering chamber (15) (151), i.e.,
古い色彩の樹脂材料が残存し易い下部コーナ部(151) から吐出する。 Resin material of the old color is discharged from easily lower corner left (151). 即ち、上記下部コーナ部(151) 部分に残存している古い色彩の樹脂材料(前回の射出動作時に吐出路(17)側に射出されなかった樹脂材料)が、第2分岐路 That is, the lower corner portion (151) (resin material that has not been injected into the discharge passage (17) side during the previous injection operation) remaining to have the old color resin material part, a second branch path
(134) から吐出される新たな色の樹脂材料で計量室(15) In new color of the resin material discharged from the (134) measuring chamber (15)
全体に拡散せしめられ、これが吐出路(17)及びノズル Is allowed spread throughout, this discharge passage (17) and the nozzle
(3) から金型内に射出される。 (3) it is injected into the mold from. 従って、上記下部コーナ部(151) 部分に古い色彩の樹脂材料が速やかに射出され、樹脂材料の色の切り替えが円滑・迅速に行える。 Therefore, the lower corner portion (151) the old color of resin material part is injected rapidly, the switching of the color of the resin material performed smoothly and promptly.

【0023】尚、上記実施の形態では、無着色の樹脂材料と顔料をホッパ(27)から供給したが、着色されたペレット状の熱可塑性樹脂材料をホッパ(27)から供給してもよく、又、これら樹脂材料と共に導電性材料,カーボンファイバー,ステンレスファイバー,更にガラス繊維等を混入させてもよい。 [0023] In the above embodiment has been supplied uncolored resin material and the pigment from the hopper (27) may supply colored pellets of a thermoplastic resin material from the hopper (27), the conductive material with such a resin material, carbon fiber, stainless steel fiber, may be further mixed with glass fibers or the like. 更に、上記実施の形態のものでは、計量室(15)で材料を計量する計量式の容量成形である。 Furthermore, those of the above embodiment is the capacity shaping of metered weighing the material in the weighing chamber (15). 従って、発泡剤等が添加されている場合には該発泡剤等が弁口(136) の開度調整によって押出機(2) 内で樹脂材料と均一に混練されながら加熱時間の調整と該押出機(2) 内の圧力調整(摺動弁(41)による)で粘度調整された材料が発泡溶融されると共にこれが計量室(15)に導かれて射出される発泡成形(ガス発泡・化学発泡・大豆粕残発泡)をする場合でも本願の発明は適用できる。 Thus, out pressing and adjusting the heating time while being uniformly kneaded with the resin material by opening control in an extruder (2) of the blowing agent or the like valve port (136) when such a foaming agent is added machine (2) foam molding which is emitted is led to a metering chamber (15) with pressure adjustment (by sliding valve (41)) were viscosity adjusted material is foamed melt in the (gas foaming, chemical foaming · present invention even when the soybean meal remaining foam) can be applied.

【0024】更に、上記実施の形態では、樹脂材料を射出成形する場合について説明したが、押出機(2) でアルミニウム等の非鉄金属を溶融させ、これを計量室(15)に導いて射出するダイキャスト成形をする場合でも、本願の発明は適用できる。 Furthermore, in the above embodiment, the description has been given of the case of injection molding a resin material, a nonferrous metal such as aluminum is melted in an extruder (2), injection guided to the metering chamber (15) of this even when the die casting, the present invention can be applied. 又、上記実施の形態では、材料供給路(13)の途中から分岐させた第1,第2分帰路(133) Further, in the above embodiment, first, second minute return branched from the middle of the material supply passage (13) (133)
(134) の両者を計量室(15)に接続したが、下方の第2分帰路(134) のみを計量室(15)に接続してもよい。 I connected both (134) to the metering chamber (15), it may be connected to only the second minute return lower (134) to the metering chamber (15).

【0025】更に、計量室(15)の中心軸は吐出路(17)に向けて低くなる様に多少傾斜していても良く、又、計量室(15)の内周壁に材料が残存し易い凹部等が形成されているときには、該部分にも材料供給路(13)からの新たな材料を注入してもよい。 Furthermore, the metering chamber (15) central axis of the it may be somewhat as lower inclined toward the discharge passage (17), also the metering chamber (15) inner wall material remains in easy of when the recess or the like is formed may be injected a new material from the material supply path to partial (13). 凹部に残存している古い材料が材料供給路(13)からの新たな材料と一緒に計量室(15)全体に拡散するからである。 This is because the spread throughout the metering chamber (15) together with new material from the old material remaining in recesses material supply passage (13). 更に、計量室(15)の中心軸の傾斜角度が水平に限定されるものではない。 Furthermore, it is not intended to be limited to the horizontal tilt angle of the central axis of the metering chamber (15). 更に、計量室(15)の中心軸は吐出路(17)に向けて高くなるように若干傾斜していてもよい。 Furthermore, it may also be slightly inclined to be higher toward the discharge passage is the central axis of the metering chamber (15) (17). この場合も、プランジャ(11)を押し出したときには、計量室(15)の底壁の下流端に材料が垂落ちて該部分に残存するからである。 In this case, when the extrusion plunger (11), the material at the downstream end of the bottom wall of the metering chamber (15) is because remaining partial down vertical.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の形態に係る射出機を具備するプリプラ式射出装置の一部切欠の断面図 Cross-sectional view of a portion cutaway of the preplasticization injection device comprising an injection device according to the embodiment of the present invention; FIG

【図2】従来例の説明図 FIG. 2 is an explanatory view of a conventional example

【符号の説明】 DESCRIPTION OF SYMBOLS

(1) ・・・射出機 (2) ・・・押出機 (11)・・・プランジャ (13)・・・材料供給路 (15)・・・計量室 (17)・・・吐出路 (1) ... injection machine (2) ... extruder (11) ... plunger (13) ... material supply passage (15) ... measuring chamber (17) ... discharge passage

Claims (2)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】 略水平に設定された中心軸を有する柱状の計量室(15)と、 前記計量室(15)の軸線方向の下流端から引き出された吐出路(17)と、 前記計量室(15)内の材料を前記吐出路(17)に吐出させる為のプランジャ(11)と、 前記計量室(15)の底壁の下流端に繋がる材料供給路(13) 1. A columnar measuring chamber having a central axis which is set in a substantially horizontal (15), discharge passage drawn from the downstream end of the axial direction of the measuring chamber (15) and (17), the metering chamber material said discharge passage in (15) and plunger (11) for ejecting (17), the metering chamber material supply passage connected to the downstream end of the bottom wall (15) (13)
    とを具備する射出機。 Injection machine having a door.
  2. 【請求項2】 前記材料は、熱可塑性の樹脂材料である請求項1の射出機。 Wherein said material is an injection machine according to claim 1 which is a thermoplastic resin material.
JP09040259A 1997-02-25 1997-02-25 Injection molding machine Expired - Fee Related JP3138653B2 (en)

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US9024517B2 (en) 2010-03-03 2015-05-05 Cree, Inc. LED lamp with remote phosphor and diffuser configuration utilizing red emitters
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US8931933B2 (en) 2010-03-03 2015-01-13 Cree, Inc. LED lamp with active cooling element
US9024517B2 (en) 2010-03-03 2015-05-05 Cree, Inc. LED lamp with remote phosphor and diffuser configuration utilizing red emitters
US9057511B2 (en) 2010-03-03 2015-06-16 Cree, Inc. High efficiency solid state lamp and bulb
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US9500325B2 (en) 2010-03-03 2016-11-22 Cree, Inc. LED lamp incorporating remote phosphor with heat dissipation features
US9217544B2 (en) 2010-03-03 2015-12-22 Cree, Inc. LED based pedestal-type lighting structure
US9310030B2 (en) 2010-03-03 2016-04-12 Cree, Inc. Non-uniform diffuser to scatter light into uniform emission pattern
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