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JP2008221536A - Two-component mixing injection apparatus and mixer - Google Patents

Two-component mixing injection apparatus and mixer Download PDF

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Publication number
JP2008221536A
JP2008221536A JP2007060835A JP2007060835A JP2008221536A JP 2008221536 A JP2008221536 A JP 2008221536A JP 2007060835 A JP2007060835 A JP 2007060835A JP 2007060835 A JP2007060835 A JP 2007060835A JP 2008221536 A JP2008221536 A JP 2008221536A
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Prior art keywords
mixing
rotor
mixer
mixing chamber
resin
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JP2007060835A
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JP5013073B2 (en
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Koji Takeda
浩二 武田
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EXA CO Ltd
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EXA CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/401—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft having a casing closely surrounding the rotor, e.g. with a plunger for feeding the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/405—Mixing heads
    • B29B7/407—Mixing heads with a casing closely surrounding the rotor, e.g. with conical rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/402—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft using a rotor-stator system with intermeshing elements, e.g. teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/405—Mixing heads
    • B29B7/408—Mixing heads with mixing elements on a rotor co-operating with mixing elements, perpendicular to the axis of the rotor, fixed on a stator

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

【課題】吐出圧を高くしても充分な耐圧性を持たせることができる使い捨て型のミキサ構成としつつ、ミキサ交換作業性も非常に容易な２液混合注入装置を提供する。
【解決手段】種類の異なる複数の液の押出注入手段から供給される液を導入して混合攪拌するミキサを、前記押出注入手段が取り付けられるブロックに対して着脱可能としておく。このミキサを、ノズル部を有する樹脂製ミキシングチャンバと、このミキシングチャンバ内に挿入される樹脂製ミキシングロータと、ミキシングロータを内挿したミキシングチャンバを収容して圧力支持をなす金属外套とから構成する。これにより、前記ミキシングロータとこれを内挿するミキシングチャンバの廃棄交換が可能となる。
【選択図】図１Provided is a two-component mixing / injecting apparatus having a disposable mixer configuration capable of providing sufficient pressure resistance even when the discharge pressure is increased, and having very easy mixer replacement workability.
A mixer that introduces and mixes liquids supplied from a plurality of different types of extrusion injection means is detachable from a block to which the extrusion injection means is attached. This mixer is composed of a resin mixing chamber having a nozzle portion, a resin mixing rotor inserted into the mixing chamber, and a metal mantle that accommodates the mixing chamber in which the mixing rotor is inserted and supports pressure. . This makes it possible to discard and replace the mixing rotor and the mixing chamber in which the mixing rotor is inserted.
[Selection] Figure 1

Description

本発明は２液混合注入装置及びそのミキサに係り、特に硬化性樹脂と非硬化性樹脂とを混合して化学反応により硬化させる樹脂を押出注入させるのに好適な２液混合注入装置及びそのミキサに関する。   The present invention relates to a two-liquid mixing and injection apparatus and a mixer thereof, and more particularly to a two-liquid mixing and injection apparatus suitable for extruding and injecting a resin that is cured by a chemical reaction by mixing a curable resin and a non-curable resin. About.

従来、硬化性樹脂と非硬化性樹脂とからなる２液を混合して化学反応により固化する樹脂を注入するための２液混合注入装置が提案されている（特許文献１）。この種の注入装置は、硬化性樹脂と非硬化性樹脂とを独立した通路によりミキサのミキシングチャンバにそれぞれ連続的に供給し、ミキシングチャンバ内でミキシングロータを回転させることにより混練し、適正な状態で固化するように調整して混合された樹脂の吐出を行う。   2. Description of the Related Art Conventionally, there has been proposed a two-liquid mixed injection device for injecting a resin that is solidified by a chemical reaction by mixing two liquids composed of a curable resin and a non-curable resin (Patent Document 1). This type of injection device continuously supplies a curable resin and a non-curable resin to the mixing chamber of the mixer through independent passages, and kneads them by rotating the mixing rotor in the mixing chamber. Then, the mixed resin is discharged so as to be solidified.

一般的な従来の２液混合注入装置では、硬化性樹脂と非硬化性樹脂の押出吐出手段が各々取り付けられるブロックを有している。このブロックにはそれぞれの樹脂通路を設け、ブロック下部に取り付けたミキサのミキシングチャンバに同時に２液の樹脂を一定の割合で供給するようにしている。ミキシングチャンバの内部には供給された樹脂を混合するためのミキシングロータが挿入され、このロータをモータによって強制的に回転駆動することにより、供給された２液を混合攪拌しながら先端ノズル側に送り出し、ノズルから吐出注入するようにしている。   A general conventional two-component mixing and injection apparatus has blocks to which extrusion discharge means for a curable resin and a non-curable resin are respectively attached. Each block is provided with a resin passage so that two liquid resins are simultaneously supplied to the mixing chamber of the mixer attached to the lower part of the block at a constant ratio. A mixing rotor for mixing the supplied resin is inserted inside the mixing chamber, and this rotor is forcibly driven by a motor to feed the two liquids to the tip nozzle side while mixing and stirring. The nozzle is discharged and injected.

このような２液混合樹脂の注入装置では、注入作業が終了した場合や樹脂変えする場合には、ミキシング流路に樹脂が残留するとそれが硬化してしまうので、樹脂流路の洗浄作業が行われる。通常は、各樹脂の押出吐出手段からバルブ切り替えにより洗浄液を押出吐出させてミキサから洗浄液を吐出させ、樹脂流路を洗浄するようにしている。   In such a two-component mixed resin injection device, when the injection operation is completed or when the resin is changed, if the resin remains in the mixing flow path, it hardens. Is called. Normally, the resin flow path is cleaned by extruding and discharging the cleaning liquid by switching valves from the extrusion discharging means of each resin and discharging the cleaning liquid from the mixer.

この洗浄作業の容易化を図るため、前記特許文献１に記載の発明では、ミキサのチャンバ側面に樹脂押出吐出手段を直接接離できるようにし、作業の終了後にはミキサを廃棄するようにした構成が示されている。
特開平８−１１８３４８号公報 In order to facilitate this cleaning operation, in the invention described in Patent Document 1, the resin extrusion / discharge means can be directly contacted and separated from the side surface of the chamber of the mixer, and the mixer is discarded after the operation is completed. It is shown.
JP-A-8-118348

上記従来の構造のものでは、樹脂押出吐出手段をミキサの側面に向けて出入させるための複雑な駆動機構を必要とし、部品点数の増加によるコスト増大を招く欠点がある。また、ミキサには複数の樹脂が個別の押出吐出手段から所定圧力で導入されるが、ミキサ内圧が高くなるとロータを内挿しているミキサチャンバが膨らんでしまって混合攪拌が不完全になる可能性があるため、チャンバ強度を充分に高くしなければならない。ミキサは使用後に廃棄処分されることから、コストを上げた上で処分するという不合理性が存在していた。また、ミキサの交換を簡単に行わせるために、特許文献１に記載の技術では、各樹脂の押出吐出手段を跳ね上げ可能にしてミキサの周囲を開放して交換が容易になるようにしている。このため、ミキサ交換作業性のために複雑な機構を採用しなければならないという欠点がある。   The conventional structure requires a complicated drive mechanism for moving the resin extrusion / discharging means toward and away from the side surface of the mixer, and has a drawback of increasing costs due to an increase in the number of parts. In addition, a plurality of resins are introduced into the mixer at a predetermined pressure from individual extrusion discharge means, but if the mixer internal pressure increases, the mixer chamber in which the rotor is inserted may swell and mixing agitation may be incomplete. Therefore, the chamber strength must be sufficiently high. Since the mixer is disposed of after use, there is an unreasonableness of disposal after raising the cost. In order to easily replace the mixer, the technique described in Patent Document 1 makes it possible to flip up the extrusion discharge means of each resin so that the periphery of the mixer is opened to facilitate the replacement. . For this reason, there exists a fault that a complicated mechanism must be adopted for mixer exchange workability.

本発明は、上記従来の問題点に着目し、吐出圧を高くしても充分な耐圧性を持たせることができる使い捨て型のミキサ構成としつつ、ミキサ交換作業性も非常に容易な２液混合注入装置を提供することを目的とする。   The present invention pays attention to the above-mentioned conventional problems, and a two-component mixing with a very easy mixer replacement workability while having a disposable mixer configuration capable of providing sufficient pressure resistance even when the discharge pressure is increased. An object is to provide an injection device.

上記目的を達成するために、本発明に係る２液混合注入装置は、種類の異なる複数の液の押出注入手段から供給される液を導入して混合攪拌するミキサを、前記押出注入手段が取り付けられるブロックに対して着脱可能としておき、当該ミキサを、ノズル部を有する樹脂製ミキシングチャンバと、このミキシングチャンバ内に挿入される樹脂製ミキシングロータと、ミキシングロータを内挿したミキシングチャンバを収容して圧力支持をなす金属外套とから構成し、前記ミキシングロータとこれを内挿するミキシングチャンバの廃棄交換を可能としたことを特徴としてなる。   In order to achieve the above object, the two-liquid mixing / injecting apparatus according to the present invention is equipped with a mixer for introducing and mixing and agitating liquids supplied from different types of liquid injection / injection means. The mixer is detachable from the block, and the mixer contains a resin mixing chamber having a nozzle portion, a resin mixing rotor inserted into the mixing chamber, and a mixing chamber in which the mixing rotor is inserted. It is composed of a metal mantle that provides pressure support, and the mixing rotor and the mixing chamber in which the mixing rotor is inserted can be discarded and replaced.

前記ミキサのロータはブロックを貫通する回転軸の角形断面の回転伝達軸部を挿入させるとともに、回転伝達軸部とロータの挿入穴と凹凸係合部で係合位置決め可能とすればよい。   The rotor of the mixer may be inserted with a rotation transmission shaft portion having a rectangular cross section of the rotation shaft passing through the block, and can be engaged and positioned by the rotation transmission shaft portion, the insertion hole of the rotor, and the uneven engagement portion.

前記ミキサのミキシングロータは前記ブロックへの対面部に外向きフランジ部を有するとともに、このフランジ部にはブロック側の接合面に当接され前記回転伝達軸部の周囲を囲繞する突条部を設けて線接触接合させている。   The mixing rotor of the mixer has an outward flange portion facing the block, and a flange portion that is in contact with the joint surface on the block side and surrounds the periphery of the rotation transmission shaft portion is provided on the flange portion. Line contact bonding.

前記ミキサのミキシングチャンバは前記ブロックに形成された前記押出注入手段から液供給通路の開口に対面された液導入口を有し、この液導入口は前記ミキシングロータのフランジ部下面を経由してロータ・チャンバ間の隙間流路に連通されている。   The mixing chamber of the mixer has a liquid introduction port facing the opening of the liquid supply passage from the extrusion injection means formed in the block, and the liquid introduction port is a rotor via a lower surface of the flange portion of the mixing rotor. -It is connected to the gap flow path between the chambers.

更に、前記ミキサは前記ブロックに対してフランジ結合構成とし、フランジ外縁を締め付ける締付手段により着脱可能としてなる。   Further, the mixer has a flange coupling configuration with respect to the block, and is detachable by fastening means for fastening the outer edge of the flange.

本発明に係る２液混合注入装置用ミキサは、ノズル部を有する樹脂製ミキシングチャンバと、このミキシングチャンバ内に挿入される樹脂製ミキシングロータと、ミキシングロータを内挿したミキシングチャンバを収容して圧力支持をなす金属外套とから構成し、前記ミキシングロータとこれを内挿するミキシングチャンバの廃棄交換を可能としたものである。   A mixer for a two-component mixing / injecting apparatus according to the present invention accommodates a resin mixing chamber having a nozzle portion, a resin mixing rotor inserted into the mixing chamber, and a mixing chamber in which the mixing rotor is inserted. It is composed of a supporting metal mantle, and the mixing rotor and the mixing chamber in which the mixing rotor is inserted can be discarded and replaced.

この発明に係る２液混合注入装置のミキサは、液の押出注入手段が取り付けられているブロックに対して着脱自在にし、ミキサのロータとチャンバとを金属外套に内挿する構成としているので、ミキサをブロックから取り外し、金属外套から内部の樹脂チャンバと樹脂ロータとを一体で取り出し、これを簡単に廃棄し、新しいチャンバとロータとに交換することができる。金属外套内に樹脂製のミキシングチャンバを収容保持するため、チャンバ自体の肉厚を薄肉構造としても注入時に膨張することが金属外套によって抑えられる。したがって交換廃棄されるチャンバとロータのコストを低減できるとともに吐出機能の必要な耐圧性を確保することができる。   The mixer of the two-liquid mixing / injecting apparatus according to the present invention is configured to be detachable from the block to which the liquid injection / injection means is attached, and the mixer's rotor and chamber are inserted into a metal mantle. Can be removed from the block, the resin chamber and the resin rotor inside can be taken out from the metal jacket, and can be easily discarded and replaced with a new chamber and rotor. Since the resin mixing chamber is accommodated and held in the metal mantle, the metal mantle can prevent the chamber itself from expanding during injection even if the chamber itself has a thin wall thickness. Therefore, it is possible to reduce the cost of the chamber and the rotor to be replaced and discarded, and to secure the pressure resistance required for the discharge function.

以下に、本発明に係る２液混合注入装置及びそのミキサの最良の実施形態につき、図面を参照しながら、詳細に説明をする。
図１は実施形態に係る２液混合注入装置の断面構成を示しており、種類の異なる樹脂液として、硬化性樹脂と非硬化性樹脂を混合して吐出するための装置を示している。当該装置は、硬化性樹脂と非硬化性樹脂の押出注入手段１０、１２の取付ブロック１４を有し、この取付ブロック１４の下部にミキサ１６を取り付けるようにしている。このミキサ１６は、ノズル部を有する樹脂製ミキシングチャンバ１８と、このミキシングチャンバ１８内に挿入される樹脂製ミキシングロータ２０と、ミキシングロータ２０を内挿したミキシングチャンバ１８を収容して圧力支持をなす金属外套２２とから構成し、前記ミキシングロータ２０とこれを内挿するミキシングチャンバ１８の廃棄・交換を可能としたものである。 Hereinafter, the best embodiment of a two-component mixed injection device and its mixer according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a cross-sectional configuration of a two-liquid mixing / injecting apparatus according to an embodiment, and shows an apparatus for mixing and discharging a curable resin and a non-curable resin as different types of resin liquids. The apparatus includes a mounting block 14 for the extrusion injection means 10 and 12 for the curable resin and the non-curable resin, and a mixer 16 is mounted below the mounting block 14. The mixer 16 accommodates a resin mixing chamber 18 having a nozzle portion, a resin mixing rotor 20 inserted into the mixing chamber 18, and a mixing chamber 18 in which the mixing rotor 20 is inserted to provide pressure support. The metal outer jacket 22 is configured to allow the mixing rotor 20 and the mixing chamber 18 into which the mixing rotor 20 is inserted to be discarded and replaced.

まず、図２〜６に樹脂製ミキシングロータ２０の平面図、側面図、図３のＣ−Ｃ線断面図、図２のＡ−Ａ線断面図、図２のＢ−Ｂ線断面図をそれぞれ示す。これらの図に示すように、ミキシングロータ２０は棒軸状に形成されたもので、外周面部に螺旋溝と縦溝を形成することにより、多数のフィン２４が螺旋に沿った形状とされている。前記フィン２４は、押出注入手段１０，１２から圧送される２種の樹脂材料を撹拌混合するためのものであり、また、螺旋状に形成することで樹脂材料を後述するミキシングチャンバ１８の注入ノズル方向へ誘導する役割がある。   2 to 6 are a plan view, a side view, a sectional view taken along the line CC of FIG. 3, a sectional view taken along the line AA of FIG. 2, and a sectional view taken along the line BB of FIG. Show. As shown in these drawings, the mixing rotor 20 is formed in a rod-shaft shape, and a number of fins 24 are formed along the spiral by forming spiral grooves and longitudinal grooves on the outer peripheral surface portion. . The fin 24 is for stirring and mixing the two types of resin materials fed from the extrusion injection means 10 and 12, and is formed in a spiral shape so that the resin material is injected into the injection nozzle of the mixing chamber 18 to be described later. There is a role to guide in the direction.

ミキシングロータ２０の上端部には前記フィン２４の外縁より外向きに張り出したフランジ部２６が形成され、このフランジ部２６を取付ブロック１４に対面させて接合させるようにしている。ミキシングロータ２０の下端部は円錐形状とされている。ミキシングロータ２０の中心部には当該ロータ２０を回転させるための回転伝達軸部２８（図１参照）を挿通させる挿通孔３０が形成され、これがフランジ部２６側に開口している。回転伝達軸部２８は取付ブロック１４を貫通して回転自在に支持された回転軸３２の先端に形成されたものである。その形状は四角断面とされ、これに対応して前記挿通孔３０の断面も四角形状とされ、モータを通じて駆動される回転軸３２の回転が回転伝達軸部２８を介してミキシングロータ２０に回転が伝達されるようにしている。回転伝達軸部２８の途中には凹陥溝３４を互いに平行な平面部に形成され、一方、ミキシングロ−タ２０の挿通孔３０には前記凹陥溝３４に係合する突起３６を形成している。これによって回転軸３２（回転伝達軸部２８）とミキシングロータ２０の軸方向の位置決めがなされることとなる。   A flange portion 26 projecting outward from the outer edge of the fin 24 is formed at the upper end portion of the mixing rotor 20, and the flange portion 26 faces the attachment block 14 and is joined thereto. The lower end portion of the mixing rotor 20 has a conical shape. An insertion hole 30 through which a rotation transmission shaft portion 28 (see FIG. 1) for rotating the rotor 20 is inserted is formed in the central portion of the mixing rotor 20 and opens to the flange portion 26 side. The rotation transmission shaft portion 28 is formed at the tip of the rotation shaft 32 that is rotatably supported through the mounting block 14. The shape thereof is a square cross section, and the corresponding cross section of the insertion hole 30 is also a square shape. The rotation of the rotary shaft 32 driven through the motor is rotated to the mixing rotor 20 via the rotation transmission shaft portion 28. To be communicated. A concave groove 34 is formed in the plane portion parallel to each other in the middle of the rotation transmission shaft portion 28, while a projection 36 that engages with the concave groove 34 is formed in the insertion hole 30 of the mixing rotor 20. . As a result, the rotation shaft 32 (rotation transmission shaft portion 28) and the mixing rotor 20 are positioned in the axial direction.

ミキシングロータ２０のフランジ部２６の上面部には、前記挿通孔３０の周囲、すなわち回転伝達軸部２８の周囲を囲繞するように、半円断面の環状突条３７が設けられている。フランジ部２６はこの環状突条３７を介して取付ブロック１４に線接触することになる。   An annular protrusion 37 having a semicircular cross section is provided on the upper surface of the flange portion 26 of the mixing rotor 20 so as to surround the periphery of the insertion hole 30, that is, the periphery of the rotation transmission shaft portion 28. The flange portion 26 comes into line contact with the mounting block 14 via the annular protrusion 37.

このようなミキシングロータ２０を収容するミキシングチャンバ１８の構成を図７〜図１９に示す。これらは平面図、縦断面図、チャンバ首部の横断面図と縦断面図である。ミキシングチャンバ１８は、円筒形状の下部を円錐状に絞って形成しており、その先端に樹脂材料を吐出するためのノズル３８を設けている。ミキシングチャンバ１８は内部に前述のミキシングロータ２０を収容するが、ロータ軸部のフィン外縁がミキシングチャンバ１８の内周面を摺動回転できるような内径サイズとされている。そして、ミキシングチャンバ１８の上端部には、やや肉厚のフランジ部４０が設けられ、ここにロータ２０のフランジ部２６の嵌入部４２を形成している。この嵌入部４２にフランジ部２６を収容させた状態でミキシングロータ２０がミキシングチャンバ１８に収容されると、両者のフランジ部２６、４０の上面が同一面となるとともに、ロータ側フランジ部２６に形成された環状突条３７部分のみが上面から突出するようになっている。   The structure of the mixing chamber 18 that accommodates such a mixing rotor 20 is shown in FIGS. These are a plan view, a longitudinal sectional view, a transverse sectional view and a longitudinal sectional view of the chamber neck. The mixing chamber 18 is formed by constricting a cylindrical lower portion into a conical shape, and a nozzle 38 for discharging a resin material is provided at the tip of the mixing chamber 18. The mixing chamber 18 accommodates the above-described mixing rotor 20 inside. The inner diameter of the mixing shaft 18 is such that the fin outer edge of the rotor shaft can slide and rotate on the inner peripheral surface of the mixing chamber 18. A slightly thick flange portion 40 is provided at the upper end portion of the mixing chamber 18, and a fitting portion 42 of the flange portion 26 of the rotor 20 is formed here. When the mixing rotor 20 is accommodated in the mixing chamber 18 in a state where the flange portion 26 is accommodated in the fitting portion 42, the upper surfaces of both the flange portions 26 and 40 become the same surface and are formed in the rotor side flange portion 26. Only the formed annular ridge 37 projects from the upper surface.

また、チャンバフランジ部４０の上面には１８０度対向する位置に一対の硬化性樹脂導入口４４と非硬化性樹脂導入口４６が開口している。これら樹脂導入口４４，４６は、ロータ側フランジ部２６の下面部に潜り込んで、ミキシングチャンバ１８とロータ２０の間に樹脂をそれぞれ導入させるようにしている。   In addition, a pair of curable resin inlet 44 and a non-curable resin inlet 46 are opened on the upper surface of the chamber flange portion 40 at positions opposed to each other by 180 degrees. These resin inlets 44 and 46 are inserted into the lower surface portion of the rotor side flange portion 26 so as to introduce the resin between the mixing chamber 18 and the rotor 20, respectively.

なお、チャンバフランジ部４０の上面には、位置決め穴４８が設けられ、取付ブロック１４に設けた位置決め突起（図示せず）を嵌入させることで、樹脂導入口４４，４６を取付ブロック１４に形成した硬化性樹脂通路５０、非硬化性樹脂通路５２（図１参照）とそれぞれ位置合わせできるようにしている。更に、チャンバフランジ部４０の直下のチャンバ外周部に後述の金属外套との位置決め突起５４を設けている（図９，図１０参照）。   In addition, a positioning hole 48 is provided on the upper surface of the chamber flange portion 40, and a resin protrusion 44, 46 is formed in the mounting block 14 by fitting a positioning projection (not shown) provided on the mounting block 14. The position can be aligned with the curable resin passage 50 and the non-curable resin passage 52 (see FIG. 1). Further, a positioning projection 54 with a metal mantle to be described later is provided on the outer periphery of the chamber directly below the chamber flange 40 (see FIGS. 9 and 10).

図１１、１２に上記ミキシングチャンバ１８を収容する金属外套２２の平面図と縦断面図を示している。金属外套２２は、アルミニウム材料からなる金属ケースであり、ミキシングチャンバ１８の収容孔５６を形成しているスリーブ５８と、その上端部のフランジ保持部６０を主たる構成要素としている。スリーブ５８の下端面にはミキシングチャンバ１８のノズル３８を突出させる開口６２が形成されている。開口６２に近い収容孔５６の下端部はミキシングチャンバ１８の下部絞り部分を受けるようにテーパ面を形成している。フランジ保持部６０にはミキシングチャンバ１８のフランジ部４０を収容する段部６４が形成されており、この段部６４の収容孔５６に沿った開口縁の一部に前記位置決め突起５４を嵌入可能な位置決め溝６６を形成し、これに収容されたミキシングチャンバ１８が回転しないように調整される。   FIGS. 11 and 12 show a plan view and a longitudinal sectional view of the metal mantle 22 that accommodates the mixing chamber 18. The metal jacket 22 is a metal case made of an aluminum material, and mainly includes a sleeve 58 forming the accommodation hole 56 of the mixing chamber 18 and a flange holding portion 60 at the upper end thereof. An opening 62 for projecting the nozzle 38 of the mixing chamber 18 is formed in the lower end surface of the sleeve 58. A lower end portion of the accommodation hole 56 close to the opening 62 forms a tapered surface so as to receive a lower throttle portion of the mixing chamber 18. The flange holding portion 60 is formed with a step portion 64 for receiving the flange portion 40 of the mixing chamber 18, and the positioning projection 54 can be fitted into a part of the opening edge along the receiving hole 56 of the step portion 64. A positioning groove 66 is formed and adjusted so that the mixing chamber 18 accommodated therein does not rotate.

そして、金属外套２２は取付ブロック１４に対してフランジ結合することで一体的に固定されるようにしており、このため、フランジ保持部６０の上端外周に張り出しフランジ部６８を設けている。この張り出しフランジ部６８は下面側に片勾配を付して構成される。   The metal mantle 22 is integrally fixed by being flange-coupled to the mounting block 14. For this reason, an overhanging flange portion 68 is provided on the outer periphery of the upper end of the flange holding portion 60. The overhanging flange portion 68 is configured with a single slope on the lower surface side.

一方、図１に示すように、押出注入手段１０，１２が取り付けられる取付ブロック１４の下面にはボス部７０が突設され、その突端面に回転軸３２の軸受スリーブ７２を臨ませ、回転伝達軸部２８が突出させている。また、回転伝達軸部２８を中心として１８０度対向する線対称位置に硬化性樹脂通路５０と非硬化性樹脂通路５２を開口させている。上記ボス部７０の下端部外周には張り出しフランジ部７４を形成し、その上面に片勾配を施している。   On the other hand, as shown in FIG. 1, a boss portion 70 projects from the lower surface of the mounting block 14 to which the extrusion injection means 10 and 12 are attached, and the bearing sleeve 72 of the rotating shaft 32 faces the projecting end surface to transmit the rotation. The shaft portion 28 protrudes. Further, a curable resin passage 50 and a non-curable resin passage 52 are opened at a line-symmetrical position facing each other by 180 degrees around the rotation transmission shaft portion 28. An overhanging flange portion 74 is formed on the outer periphery of the lower end portion of the boss portion 70, and the upper surface thereof is given a single gradient.

このような取付ブロック１４のボス部７０を利用してミキサを取り付けるが、ミキシングロータ２０をミキシングチャンバ１８内に収容した状態で、これを金属外套２２に収容することでミキサが構築され、これを取付ブロック１４のボス部７０にフランジ結合して固定するようにしている。図１に示しているように、ブロック側の張り出しフランジ部７４とミキサ側の張り出しフランジ部６８を対面させ、それらの外縁をテーパを利用して締付手段７６により締め付けることで、一体結合させることができる。また逆に締付手段７６を緩めることで、ミキサの取り外しが簡単にできるようにしている。フランジ結合した状態では、ミキシングロータ２０のフランジ部２６は軸受スリーブ７２に対面し、その外側にてボス部７０の突端面に開口した樹脂通路５０，５２の各々が位置決め穴４８によって規定された状態でミキシングチャンバ１８のフランジ部４０に設けた樹脂導入口４４，４６に対面して取り付けられる。   The mixer is attached using such a boss portion 70 of the attachment block 14, and the mixer is constructed by accommodating the mixing rotor 20 in the mixing chamber 18 in the state where the mixing rotor 18 is accommodated in the metal jacket 22. The boss portion 70 of the mounting block 14 is fixed by being flange-coupled. As shown in FIG. 1, the block-side overhanging flange portion 74 and the mixer-side overhanging flange portion 68 face each other, and the outer edges thereof are tightened by the tightening means 76 using a taper to be integrally coupled. Can do. On the contrary, by loosening the fastening means 76, the mixer can be easily removed. In the flange-coupled state, the flange portion 26 of the mixing rotor 20 faces the bearing sleeve 72, and the resin passages 50 and 52 opened to the protruding end surface of the boss portion 70 on the outside thereof are defined by the positioning holes 48. And are attached so as to face the resin inlets 44 and 46 provided in the flange portion 40 of the mixing chamber 18.

このような２液混合注入装置およびミキサでは、注入作業の終了後に、ミキサを固定している締付手段７６を外し、ミキサを下方に引き下げることでミキシングロータ２０に嵌入している回転伝達軸部２８が引き抜かれ、取付ブロック１４から簡単に分離できる。その後は金属外套２２からミキシングロータ２０を内挿しているミキシングチャンバ１８をそのまま引き出し、これを廃棄するとともに、次の新規なミキシングチャンバ１８に新規なミキシングロータ２０をに入れ込み、これを金属外套２２に装着して取付ブロック１４にフランジ結合させればよい。もちろん、その間に必要に応じて取付ブロック１４の押出注入手段１０，１２の変更や樹脂通路５０，５２の洗浄を行っておく。   In such a two-liquid mixing and injection apparatus and a mixer, after the injection operation is completed, the tightening means 76 that fixes the mixer is removed, and the mixer is pulled down so that the rotation transmission shaft portion is fitted into the mixing rotor 20. 28 is pulled out and can be easily separated from the mounting block 14. Thereafter, the mixing chamber 18 in which the mixing rotor 20 is inserted is pulled out from the metal mantle 22 as it is and discarded, and the new mixing rotor 20 is put into the next new mixing chamber 18, and this is put into the metal mantle 22. What is necessary is just to mount and to flange-mount to the attachment block 14. Of course, in the meantime, the extrusion injection means 10 and 12 of the mounting block 14 are changed and the resin passages 50 and 52 are cleaned as necessary.

上記ミキサとこのミキサを利用した２液混合注入装置では、ミキサ取付状態において、樹脂を押出注入すると、樹脂導入口４４，４６に供給された樹脂圧力がロータ側フランジ部２６をボス部７０の突端面に押し付けるように作用する。フランジ部４０には環状突条３７が設けられており、これが押しつぶされて大きなシール機能を発揮することができる。集中的に線接触している部分が加圧されるので、シール効果が高い。また、ミキシングロータ２０には回転軸３２の伝達軸部２８が嵌入するが、凹陥溝３４を利用して伝達軸部２８の挿入深さが決められているので、着脱が極めて簡単に行える。かつ、四角断面で回転伝達を行うようにしているので、伝達軸部２８だけが空回りするようなことも防止できるようになっている。これによってミキサの引き抜きによって簡単にミキサを分離できる利点が得られる。   In the above-described mixer and the two-component mixing / injecting apparatus using this mixer, when the resin is extruded and injected in the mixer mounting state, the resin pressure supplied to the resin introduction ports 44 and 46 causes the rotor side flange portion 26 to protrude from the boss portion 70. Acts to press against the surface. The flange portion 40 is provided with an annular protrusion 37, which can be crushed to exhibit a large sealing function. Since the portion in intensive line contact is pressurized, the sealing effect is high. Further, although the transmission shaft portion 28 of the rotating shaft 32 is fitted into the mixing rotor 20, since the insertion depth of the transmission shaft portion 28 is determined by using the recessed groove 34, it can be attached and detached very easily. And since rotation transmission is performed in a square cross section, it is possible to prevent only the transmission shaft portion 28 from idling. This provides the advantage that the mixer can be easily separated by pulling out the mixer.

更に、本実施形態では、ミキシングチャンバ１８とミキシングロータ２０を樹脂成型品としているが、ロータ２０は耐疲労性と優れた耐摩擦摩耗特性があるエンジニアリングプラスチックを用いればよく、例えばポリアセタールコポリマーを用いればよい。さらにミキシングチャンバ１８としてはポリプロピレンを用いて低コスト化を図ることができる。これはミキサの圧力保持を金属外套２２に負わせ、これに収容されるミキシングチャンバ１８は薄肉形態で作成することができるからである。   Furthermore, in this embodiment, the mixing chamber 18 and the mixing rotor 20 are resin molded products. However, the rotor 20 may be made of an engineering plastic having fatigue resistance and excellent frictional wear resistance. For example, if a polyacetal copolymer is used. Good. Further, the mixing chamber 18 can be made of polypropylene by using a low cost. This is because the pressure holding of the mixer is imposed on the metal mantle 22 and the mixing chamber 18 accommodated therein can be made in a thin-walled form.

本発明は電子機器の樹脂モールディング分野や薬剤の塗布、定量供給などに適用することができる。   The present invention can be applied to the resin molding field of electronic devices, drug application, quantitative supply, and the like.

実施形態に係る２液混合注入装置の要部断面図である。It is principal part sectional drawing of the 2 liquid mixing injection apparatus which concerns on embodiment. ミキシングロータの平面図である。It is a top view of a mixing rotor. ミキシングロータの側面図である。It is a side view of a mixing rotor. ミキシングロータのＣ−Ｃ線断面図である。It is CC sectional view taken on the line of a mixing rotor. ミキシングロータのＡ−Ａ線断面図である。It is an AA line sectional view of a mixing rotor. ミキシングロータのＢ−Ｂ線段面図である。It is a BB line stepped view of a mixing rotor. ミキシングチャンバの平面図である。It is a top view of a mixing chamber. ミキシングチャンバの縦断面図である。It is a longitudinal cross-sectional view of a mixing chamber. ミキシングチャンバの胴部断面図である。It is a trunk | drum sectional drawing of a mixing chamber. ミキシングチャンバのフランジ部段面図である。It is a flange part step surface view of a mixing chamber. 金属外套の平面図である。It is a top view of a metal mantle. 金属外套の縦断面図である。It is a longitudinal cross-sectional view of a metal mantle.

符号の説明Explanation of symbols

１０、１２………押出注入手段、１４………取付ブロック、１６………ミキサ、１８………ミキシングチャンバ、２０………ミキシングロータ、２２………金属外套、２４………フィン、２６………外向きフランジ部、２８………回転伝達軸部、３０………挿通孔、３２………回転軸、３４………凹陥溝、３６………突起、３７………環状突条、３８………ノズル、４０………チャンバフランジ部、４２………フランジ嵌入部、４４………硬化性樹脂導入口、４６………非硬化性樹脂導入口、４８………位置決め穴、５０………硬化性樹脂通路、５２………非硬化性樹脂通路、５４………位置決め突起、５６………収容孔、５８………スリーブ、６０………フランジ保持部、６２………開口、６４………段部、６６………位置決め溝、６８………張り出しフランジ部、７０………ボス部、７２………軸受スリーブ、７４………張り出しフランジ部、７６………締付手段。 10, 12 ... Extrusion injection means, 14 ... ... Mounting block, 16 ... ... Mixer, 18 ... ... Mixing chamber, 20 ... ... Mixing rotor, 22 ... ... Metal jacket, 24 ... ... Fins, 26 ......... Outward flange, 28 ......... Rotation transmission shaft, 30 ......... Insertion hole, 32 ......... Rotation shaft, 34 ......... Recessed groove, 36 ......... Protrusion, 37 ......... Ring Projection, 38 ......... Nozzle, 40 ......... Chamber flange, 42 ......... Flange fitting, 44 ......... Curable resin inlet, 46 ... Non-curable resin inlet, 48 ......... Positioning hole, 50 ......... Curable resin passage, 52 ......... Non-curable resin passage, 54 ......... Positioning projection, 56 ......... Accommodating hole, 58 ......... Sleeve, 60 ......... Flange holding part, 62 ......... Opening, 64 ......... Step, 66 ......... Positioning groove, 68 ... ... protruding flange portion 70 ......... boss, 72 ......... bearing sleeve, 74 ......... overhanging flange portion 76 ......... clamping means.

Claims (6)

種類の異なる複数の液の押出注入手段から供給される液を導入して混合攪拌するミキサを、前記押出注入手段が取り付けられるブロックに対して着脱可能としておき、当該ミキサを、ノズル部を有する樹脂製ミキシングチャンバと、このミキシングチャンバ内に挿入される樹脂製ミキシングロータと、ミキシングロータを内挿したミキシングチャンバを収容して圧力支持をなす金属外套とから構成し、前記ミキシングロータとこれを内挿するミキシングチャンバの廃棄交換を可能としたことを特徴とする２液混合注入装置。   A mixer for introducing and mixing and agitating liquids supplied from different types of extrusion injection means is detachable from a block to which the extrusion injection means is attached, and the mixer is a resin having a nozzle portion. A mixing chamber made of resin, a resin mixing rotor inserted into the mixing chamber, and a metal mantle that accommodates the mixing chamber in which the mixing rotor is inserted and forms a pressure support, and the mixing rotor is inserted into the mixing chamber. A two-liquid mixing and injection device characterized in that the mixing chamber can be discarded and replaced. 前記ミキサのロータはブロックを貫通する回転軸の角形断面の回転伝達軸部を挿入させるとともに、回転伝達軸部とロータの挿通孔と凹凸係合部で係合位置決め可能としてなることを特徴とする請求項１に記載の２液混合注入装置。   The mixer rotor is configured to insert a rotation transmission shaft portion having a rectangular cross section of a rotation shaft that penetrates the block, and can be engaged and positioned by the rotation transmission shaft portion, the insertion hole of the rotor, and the uneven engagement portion. The two-component mixed injection device according to claim 1. 前記ミキサのミキシングロータは前記ブロックへの対面部に外向きフランジ部を有するとともに、このフランジ部にはブロック側の接合面に当接され前記回転伝達軸部の周囲を囲繞する突条部を設けて線接触接合させていることを特徴とする請求項２に記載の２液混合注入装置。   The mixing rotor of the mixer has an outward flange portion facing the block, and a flange portion that is in contact with the joint surface on the block side and surrounds the periphery of the rotation transmission shaft portion is provided on the flange portion. The two-liquid mixed injection device according to claim 2, wherein the two-liquid mixed injection device is line contact bonded. 前記ミキサのミキシングチャンバは前記ブロックに形成された前記押出注入手段から液供給通路の開口に対面された液導入口を有し、この液導入口は前記ミキシングロータのフランジ部下面を経由してロータ・チャンバ間の隙間流路に連通されていることを特徴とする請求項１に記載の２液混合注入装置。   The mixing chamber of the mixer has a liquid introduction port facing the opening of the liquid supply passage from the extrusion injection means formed in the block, and the liquid introduction port is a rotor via a lower surface of the flange portion of the mixing rotor. The two-liquid mixing / injecting apparatus according to claim 1, wherein the two-liquid mixing / injecting apparatus is communicated with a gap flow path between the chambers. 前記ミキサは前記ブロックに対してフランジ結合構成とし、フランジ外縁を締め付ける締付手段により着脱可能としてなることを特徴とする請求項１に記載の２液混合注入装置。   2. The two-liquid mixed injection device according to claim 1, wherein the mixer has a flange coupling configuration with respect to the block, and is detachable by a fastening means for fastening an outer edge of the flange. ノズル部を有する樹脂製ミキシングチャンバと、このミキシングチャンバ内に挿入される樹脂製ミキシングロータと、ミキシングロータを内挿したミキシングチャンバを収容して圧力支持をなす金属外套とから構成し、前記ミキシングロータとこれを内挿するミキシングチャンバの廃棄交換を可能とした２液混合注入装置用ミキサ。   A resin mixing chamber having a nozzle portion, a resin mixing rotor inserted into the mixing chamber, and a metal mantle that accommodates the mixing chamber in which the mixing rotor is inserted and supports pressure, and the mixing rotor. And a mixer for a two-component mixing / injecting apparatus that enables the waste exchange of the mixing chamber to be inserted.
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JP2019150786A (en) * 2018-03-05 2019-09-12 日本ソセー工業株式会社 Rotary mixer in two-liquid mixing type injection machine
WO2019172223A1 (en) * 2018-03-05 2019-09-12 日本ソセー工業株式会社 Rotary mixer in two-liquid mixture injection machine
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JP2022096263A (en) * 2020-12-17 2022-06-29 日本ソセー工業株式会社 Mixing rotor in rotary mixer for multi-liquid mixing device
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JP2022096263A (en) * 2020-12-17 2022-06-29 日本ソセー工業株式会社 Mixing rotor in rotary mixer for multi-liquid mixing device
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CN114368076A (en) * 2021-12-21 2022-04-19 杭州雅飞机械制造有限公司 A kind of polymer mixed material handwheel technology and equipment
CN114368076B (en) * 2021-12-21 2022-08-05 杭州雅飞机械制造有限公司 A kind of polymer mixed material handwheel technology and equipment
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