JP5095425B2 - Screw kneader - Google Patents

Screw kneader Download PDF

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Publication number
JP5095425B2
JP5095425B2 JP2008012124A JP2008012124A JP5095425B2 JP 5095425 B2 JP5095425 B2 JP 5095425B2 JP 2008012124 A JP2008012124 A JP 2008012124A JP 2008012124 A JP2008012124 A JP 2008012124A JP 5095425 B2 JP5095425 B2 JP 5095425B2
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Prior art keywords
screw
chamber
barrel
volatile refrigerant
cooling
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JP2009172493A (en
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幸弘 増田
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Yazaki Corp
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Yazaki Corp
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Priority to JP2008012124A priority Critical patent/JP5095425B2/en
Priority to CN2009801027333A priority patent/CN101925401A/en
Priority to PCT/JP2009/051117 priority patent/WO2009093710A1/en
Publication of JP2009172493A publication Critical patent/JP2009172493A/en
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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
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/421—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with screw and additionally other mixing elements on the same shaft, e.g. paddles, discs, bearings, rotor blades of the Banbury type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/91—Heating or cooling systems using gas or liquid injected into the material, e.g. using liquefied carbon dioxide or steam
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • B29B7/847—Removing of gaseous components before or after mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/54—Screws with additional forward-feeding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/82—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/51—Screws with internal flow passages, e.g. for molten material
    • B29C48/515—Screws with internal flow passages, e.g. for molten material for auxiliary fluids, e.g. foaming agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/85—Cooling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

本発明は、スクリュー式混練機に関し、詳しくは、冷却構造を有するスクリュー式混練機に関する。   The present invention relates to a screw kneader, and more particularly to a screw kneader having a cooling structure.

スクリュー式混練機は、混練対象物が供給された後、スクリューの回転により生じる剪断熱やヒーター熱によって混練対象物・混練物が加熱される構造になっている。ヒーター熱は、スクリューを囲むバレルを介して混練物に与えられるようになっている。一方、冷却に関しては、バレルの内部やスクリューの内部に水などを流すための流路が形成され、この流路を介してバレルやスクリューが冷却され、さらに混練物が冷却される構造になっている。   The screw-type kneader has a structure in which, after a kneading object is supplied, the kneading object / kneaded material is heated by shear heat or heater heat generated by rotation of the screw. Heater heat is applied to the kneaded material through a barrel surrounding the screw. On the other hand, with regard to cooling, a flow path for flowing water or the like is formed inside the barrel or inside the screw, and the barrel or screw is cooled through this flow path, and the kneaded material is further cooled. Yes.

スクリュー式混練機は、上記のような冷却構造を備えることによって、混練物の温度上昇を抑えることに配慮することができるようになっている。
特開２００３−２４５５３４号公報 特開２００４−６６７０５号公報 The screw-type kneader is provided with the cooling structure as described above, so that consideration can be given to suppressing the temperature rise of the kneaded product.
JP 2003-245534 A JP 2004-66705 A

従来のスクリュー式混練機にあっては、スクリューやバレルによる熱交換制御によって混練物の温度を制御するようになっている。しかしながら、スクリューの回転により生じる剪断熱が高い場合、冷却構造による混練物の冷却が追いつかない場合があるという問題点を有している。また、従来のスクリュー式混練機にあっては、スクリュー先端部や、スクリューの混練機能を持たせた部分に、しばしば過剰な発熱が起こってしまうという問題点を有している。これら問題点に挙げた現象は、樹脂の劣化を引き起こすだけにとどまらず、混練性の悪化を引き起こすことにもつながっている。   In a conventional screw kneader, the temperature of the kneaded product is controlled by heat exchange control using a screw or a barrel. However, when the shear heat generated by the rotation of the screw is high, there is a problem that the cooling of the kneaded material by the cooling structure may not catch up. In addition, the conventional screw type kneader has a problem that excessive heat generation often occurs at the screw tip portion or the portion having the screw kneading function. The phenomena listed as these problems not only cause deterioration of the resin but also lead to deterioration of kneadability.

尚、上記問題点の対策として、スクリューの長さ（Ｌ／Ｄ）を延長する、スクリューのエレメント部材の形状・仕様を変更する、などの案が挙げられるが、いずれにしても混練機の大型化につながり、効率的であるとは言えない。   As countermeasures for the above problems, there are proposals such as extending the screw length (L / D) and changing the shape and specifications of the element elements of the screw. It is not efficient.

本発明は、上記した事情に鑑みてなされたもので、効率的な冷却をすることが可能なスクリュー式混練機を提供することを課題とする。   This invention is made | formed in view of an above-described situation, and makes it a subject to provide the screw type kneader which can perform efficient cooling.

上記課題を解決するためになされた請求項１記載の本発明のスクリュー式混練機は、筒状の空洞部となるチャンバを有するバレルと、前記チャンバ内で回転するスクリューとを備えるとともに、前記チャンバに、混練対象物を供給する供給口と、チャンバ先端に位置し混練物を排出する混練物排出部とを形成してなるスクリュー式混練機において、前記バレルの側部に、前記供給口よりも前記チャンバ先端側に位置し前記チャンバに連通する冷却用開口部と、該冷却用開口部よりも前記チャンバ先端側に位置し前記チャンバに連通する吸気用開口部とを貫通形成し、前記冷却用開口部には、揮発性を有する冷媒を前記チャンバ側に向けて吹き付ける揮発性冷媒吹き付け装置に含まれ且つ前記揮発性を有する冷媒を泡もしくは霧状に噴霧するためのノズルを設け、前記吸気用開口部には、前記揮発性冷媒吹き付け装置に含まれ且つ前記揮発性を有する冷媒が気化した後の気体を吸引する吸引機構部を設けることを特徴としている。 The screw-type kneader of the present invention according to claim 1, which has been made to solve the above-mentioned problems, includes a barrel having a chamber serving as a cylindrical hollow portion, a screw rotating in the chamber, and the chamber. In a screw-type kneader formed with a supply port for supplying the object to be kneaded and a kneaded material discharge part that is located at the front end of the chamber and discharges the kneaded material, at the side of the barrel than the supply port a cooling opening communicating the position to said chamber to said chamber distal end, said cooling than the opening located in said chamber distal end and the intake opening communicating through formed in the chamber, for the cooling The opening is included in a volatile refrigerant spraying device that sprays volatile refrigerant toward the chamber and sprays the volatile refrigerant in the form of bubbles or mist. The nozzle is provided, wherein the inlet opening is characterized by providing a suction mechanism for sucking the gas after the refrigerant having the included in the volatile refrigerant spray device and said volatile vaporized.

このような特徴を有する本発明によれば、揮発性を有する冷媒が混練物に直接吹き付けられ、これによって混練物が効率よく冷却される。また、本発明によれば、揮発性を有する冷媒が気化し易い状態で混練物に直接吹き付けられる。気化した後の冷媒は、吸気用開口部を介してチャンバの外に排気される。排気は、チャンバ内の、上記気化した後の冷媒を吸引をするような状態での排気が好ましいものとする。 According to the present invention having such a feature, the volatile refrigerant is directly sprayed onto the kneaded product, whereby the kneaded product is efficiently cooled. Moreover, according to this invention, the volatile refrigerant | coolant is sprayed directly on a kneaded material in the state which is easy to vaporize. The vaporized refrigerant is exhausted out of the chamber through the intake opening. Exhaust is preferably performed in a state in which the vaporized refrigerant in the chamber is sucked.

請求項２記載の本発明のスクリュー式混練機は、請求項１に記載のスクリュー式混練機において、前記冷却用開口部を前記バレルの上側かつ前記混練物の非充満位置に配置形成することを特徴としている。   The screw-type kneader of the present invention according to claim 2 is the screw-type kneader according to claim 1, wherein the cooling opening is disposed on the upper side of the barrel and at a non-filling position of the kneaded product. It is a feature.

このような特徴を有する本発明によれば、混練物がスクリューの軸方向に移動する過程で冷却用開口部に入り込むことはない。混練物の冷却が効率的に行われることになる。   According to the present invention having such characteristics, the kneaded material does not enter the cooling opening in the process of moving in the axial direction of the screw. The kneaded product is efficiently cooled.

請求項３記載の本発明のスクリュー式混練機は、請求項１又は請求項２に記載のスクリュー式混練機において、前記揮発性を有する冷媒を泡もしくは霧状に噴霧するためのノズルを含んで前記揮発性冷媒吹き付け装置を構成することを特徴としている。   A screw type kneader according to a third aspect of the present invention is the screw type kneader according to the first or second aspect, further comprising a nozzle for spraying the volatile refrigerant in the form of bubbles or mist. The volatile refrigerant spraying device is configured.

請求項１に記載された本発明によれば、効率的な冷却をすることが可能なスクリュー式混練機を提供することができるという効果を奏する。さらに、本発明によれば、揮発性を有する冷媒を気化し易い状態で混練物に直接吹き付け、これによって一層効率的な冷却をすることができるという効果を奏する。 According to the first aspect of the present invention, there is an effect that it is possible to provide a screw kneader capable of efficient cooling. Furthermore, according to the present invention, the volatile refrigerant can be directly sprayed onto the kneaded material in a state where it can be easily vaporized, thereby achieving the effect of further efficient cooling.

請求項２に記載された本発明によれば、混練物の冷却を一層効率よく行うことができるという効果を奏する。   According to the second aspect of the present invention, there is an effect that the kneaded product can be cooled more efficiently.

以下、図面を参照しながら説明する。図１は本発明のスクリュー式混練機の一実施の形態を示す模式的な断面図である。   Hereinafter, description will be given with reference to the drawings. FIG. 1 is a schematic sectional view showing an embodiment of the screw kneader of the present invention.

図１において、引用符号１は本発明のスクリュー式混練機を示している。このスクリュー式混練機１は、本形態において、同方向回転噛合型の２軸混練用押出機（一例であるものとする）として構成されている。スクリュー式混練機１は、筒状の空洞部となるチャンバ２を有するバレル３と、チャンバ２内で回転するスクリュー４と、モータ及び減速機を備える駆動部５と、揮発性冷媒吹き付け装置６とを備えて構成されている。   In FIG. 1, reference numeral 1 indicates a screw type kneader of the present invention. In this embodiment, the screw kneader 1 is configured as a twin-screw kneading extruder of the same direction rotating mesh type (assumed as an example). The screw-type kneader 1 includes a barrel 3 having a chamber 2 serving as a cylindrical cavity, a screw 4 that rotates in the chamber 2, a drive unit 5 that includes a motor and a speed reducer, a volatile refrigerant spraying device 6, and the like. It is configured with.

バレル３は、図中左右方向にのび、この一端に駆動部５が設けられている。バレル３の他端は、チャンバ２の先端であり、このチャンバ先端に混練物を排出する混練物排出部７が形成されている。また、バレル３の側部には、例えばペレットなどの混練対象物８を供給する供給口９と、この供給口９よりもチャンバ先端側に位置してチャンバ２に連通する冷却用開口部１０とが貫通形成されている。さらに、バレル３の側部には、冷却用開口部１０よりもチャンバ先端側に位置してチャンバ２に連通する吸気用開口部１１が貫通形成されている。バレル３は、一般的な長さや直径で形成されている。   The barrel 3 extends in the left-right direction in the figure, and a drive unit 5 is provided at one end thereof. The other end of the barrel 3 is the front end of the chamber 2, and a kneaded material discharge portion 7 that discharges the kneaded material is formed at the front end of the chamber 3. Further, on the side of the barrel 3, for example, a supply port 9 for supplying an object 8 to be kneaded such as pellets, and a cooling opening 10 that is located on the front end side of the chamber with respect to the supply port 9 and communicates with the chamber 2. Is formed through. Further, an intake opening 11 is formed in the side portion of the barrel 3 so as to penetrate from the cooling opening 10 to the chamber tip side and communicate with the chamber 2. The barrel 3 is formed with a general length and diameter.

供給口９には、供給前の混練対象物８を入れておくホッパー部１２が連結されている。また、冷却用開口部１０及び吸気用開口部１１には、揮発性冷媒吹き付け装置６を構成する一部が連結されている。供給口９、冷却用開口部１０、及び吸気用開口部１１は、バレル３の上側に配置形成されている。冷却用開口部１０は、混練物が上がってこないような非充満位置に配置形成されている。   Connected to the supply port 9 is a hopper portion 12 in which the kneaded object 8 before supply is placed. The cooling opening 10 and the intake opening 11 are connected to a part of the volatile refrigerant spraying device 6. The supply port 9, the cooling opening 10, and the intake opening 11 are arranged on the upper side of the barrel 3. The cooling opening 10 is arranged and formed at an unfilled position where the kneaded material does not rise.

バレル３の側部やチャンバ先端には、特に図示しないが、側部の各部分や混練物の温度を計測する温度計測手段が設けられている。温度計測手段は、各々、揮発性冷媒吹き付け装置６の後述する制御部（又は混練機全体を制御する制御装置であってもよいものとする）に接続されている。   Although not specifically shown, temperature measuring means for measuring the temperature of each part of the side portion and the kneaded material is provided at the side portion of the barrel 3 and the front end of the chamber. Each of the temperature measuring means is connected to a control unit (or a control device that controls the entire kneader) described later of the volatile refrigerant spraying device 6.

スクリュー４は、駆動部５が作動することにより所定方向に回転するようになっている。スクリュー４が回転することにより、供給口９からチャンバ２に供給された混練対象物８を連続的に混練することができるようになっている。混練対象物８は、混練されて混練物となり、図中左側から右側に移動して、混練物排出部６から押し出されるようになっている。   The screw 4 rotates in a predetermined direction when the drive unit 5 is operated. As the screw 4 rotates, the kneading object 8 supplied from the supply port 9 to the chamber 2 can be continuously kneaded. The kneaded object 8 is kneaded to become a kneaded product, moves from the left side to the right side in the figure, and is pushed out from the kneaded product discharge unit 6.

スクリュー４は、特に限定するものでないが、図中左側から右側に順に構成を挙げると、第一スクリュー部１３、第一混練翼部１４、第一ニーディングディスク部１５、第二スクリュー部１６、第二混練翼部１７、第二ニーディングディスク部１８、及び第三スクリュー部１９の各エレメント部材によって構成されている。   The screw 4 is not particularly limited, but when the configuration is given in order from the left side to the right side in the figure, the first screw part 13, the first kneading blade part 14, the first kneading disk part 15, the second screw part 16, The second kneading blade part 17, the second kneading disk part 18, and the third screw part 19 are configured by the element members.

揮発性冷媒吹き付け装置６は、揮発性を有する冷媒２０を貯留するタンク２１と、揮発性を有する冷媒２０を流す配管２１と、揮発性を有する冷媒２０を泡もしくは霧状に噴霧することが可能なノズル２２と、揮発性を有する冷媒２０が気化した後の気体等を吸引する（排気する）吸引機構部２３と、ノズル２２及び吸引機構部２３の作動（例えばモータなどが作動する）を制御する制御部２４とを備えて構成されている。ノズル２２は、冷却用開口部１０に設けられており、泡もしくは霧状となった揮発性を有する冷媒２０を混練物に直接吹き付けることができるようになっている。   The volatile refrigerant spraying device 6 can spray a tank 21 for storing a volatile refrigerant 20, a pipe 21 through which the volatile refrigerant 20 flows, and the volatile refrigerant 20 in a foam or mist form. Control of the nozzle 22, the suction mechanism 23 that sucks (exhausts) the gas after the volatile refrigerant 20 is vaporized, and the operation of the nozzle 22 and the suction mechanism 23 (for example, the motor or the like operates). And a control unit 24. The nozzle 22 is provided in the cooling opening 10 so that the volatile refrigerant 20 in the form of bubbles or mist can be directly sprayed onto the kneaded product.

混練物の温度が所定の温度以上であると制御部２４が判断し、泡もしくは霧状となった揮発性を有する冷媒２０が混練物に直接吹き付けられると、この時の気化に伴って混練物の熱が奪われ、混練物が効率よく冷却されるようになっている。直接、混練物を冷却することにより、高い冷却効果を発揮することができるようになっている（従来例ではバレル３の内面に接する部分のみで吸熱が行われる。本発明では気化熱＋温度平衡となり、より均一により効率よく冷却をすることができる）。吸引機構部２３は、吸気用開口部１１に設けられている。   When the control unit 24 determines that the temperature of the kneaded material is equal to or higher than a predetermined temperature, and the volatile refrigerant 20 in the form of bubbles or mist is sprayed directly on the kneaded material, the kneaded material is vaporized at this time. The heat is taken away, and the kneaded product is cooled efficiently. By directly cooling the kneaded product, a high cooling effect can be exhibited (in the conventional example, heat is absorbed only at the portion in contact with the inner surface of the barrel 3. In the present invention, heat of vaporization + temperature equilibrium is achieved. And more uniform and efficient cooling). The suction mechanism 23 is provided in the intake opening 11.

揮発性を有する冷媒２０は、多量の不純物を含まない冷媒が好ましいものとする。具体的には、水が一例として挙げられる。そして、この水を泡もしくは霧状に噴霧して使用することが好適である。尚、泡もしくは霧状とする理由は、水を大きな水滴の状態で使用すると、冷えすぎてしまうという恐れを有するからである。また、水を大きな水滴の状態で使用すると、スクリュー４が金属製であることから、急激に冷えることによって寸法がずれ、干渉が生じる（クラック発生）という恐れを有するからである。   The volatile refrigerant 20 is preferably a refrigerant that does not contain a large amount of impurities. Specifically, water is an example. And it is suitable to spray and use this water in foam or mist form. The reason for the foam or mist is that if the water is used in the form of large water droplets, there is a risk that it will be too cold. In addition, when water is used in the form of large water droplets, the screw 4 is made of metal, so that there is a risk that the dimensions will shift and interference may occur (crack generation) due to rapid cooling.

以上、本発明のスクリュー式混練機１によれば、揮発性を有する冷媒２０を混練物に直接吹き付けることから、効率的な冷却をすることができるという効果を奏する。   As described above, according to the screw-type kneader 1 of the present invention, since the volatile refrigerant 20 is directly blown onto the kneaded product, there is an effect that efficient cooling can be performed.

この他、本発明は本発明の主旨を変えない範囲で種々変更実施可能なことは勿論である。   In addition, the present invention can of course be modified in various ways within the scope not changing the gist of the present invention.

例えば、バレル３の内部やスクリュー４の内部に水などを流すための流路を形成し、この流路を介してバレル３やスクリュー４を冷却する従来の冷却構造を、本発明に係る冷却構造に付加したり、逆に本発明に係る冷却構造を従来の冷却構造の補助的な冷却構造として使用したりすることも可能であるものとする。   For example, a conventional cooling structure in which a flow path for flowing water or the like is formed in the barrel 3 or the screw 4 and the barrel 3 or the screw 4 is cooled through the flow path is replaced with the cooling structure according to the present invention. In addition, the cooling structure according to the present invention can be used as an auxiliary cooling structure of the conventional cooling structure.

本発明のスクリュー式混練機の一実施の形態を示す模式的な断面図である。It is a typical sectional view showing one embodiment of a screw kneader of the present invention.

符号の説明Explanation of symbols

１ スクリュー式混練機
２ チャンバ
３ バレル
４ スクリュー
５ 駆動部
６ 揮発性冷媒吹き付け装置
７ 混練物排出部
８ 混練対象物
９ 供給口
１０ 冷却用開口部
１１ 吸気用開口部
１２ ホッパー部
１３ 第一スクリュー部
１４ 第一混練翼部
１５ 第一ニーディングディスク部
１６ 第二スクリュー部
１７ 第二混練翼部
１８ 第二ニーディングディスク部
１９ 第三スクリュー部
２０ 揮発性を有する冷媒
２１ 配管
２２ ノズル
２３ 吸引機構部
２４ 制御部 DESCRIPTION OF SYMBOLS 1 Screw type kneader 2 Chamber 3 Barrel 4 Screw 5 Drive part 6 Volatile refrigerant spraying device 7 Kneaded material discharge part 8 Kneading object 9 Supply port 10 Cooling opening part 11 Intake opening part 12 Hopper part 13 First screw part DESCRIPTION OF SYMBOLS 14 1st kneading blade part 15 1st kneading disk part 16 2nd screw part 17 2nd kneading blade part 18 2nd kneading disk part 19 3rd screw part 20 Volatile refrigerant 21 Piping 22 Nozzle 23 Suction mechanism part 24 Control unit

Claims (2)

筒状の空洞部となるチャンバを有するバレルと、前記チャンバ内で回転するスクリューとを備えるとともに、前記チャンバに、混練対象物を供給する供給口と、チャンバ先端に位置し混練物を排出する混練物排出部とを形成してなるスクリュー式混練機において、
前記バレルの側部に、前記供給口よりも前記チャンバ先端側に位置し前記チャンバに連通する冷却用開口部と、該冷却用開口部よりも前記チャンバ先端側に位置し前記チャンバに連通する吸気用開口部とを貫通形成し、
前記冷却用開口部には、
揮発性を有する冷媒を前記チャンバ側に向けて吹き付ける揮発性冷媒吹き付け装置に含まれ且つ前記揮発性を有する冷媒を泡もしくは霧状に噴霧するためのノズルを設け、
前記吸気用開口部には、
前記揮発性冷媒吹き付け装置に含まれ且つ前記揮発性を有する冷媒が気化した後の気体を吸引する吸引機構部を設ける
ことを特徴とするスクリュー式混練機。 A barrel having a chamber serving as a cylindrical cavity, a screw that rotates in the chamber, a supply port that supplies a kneading object to the chamber, and a kneading that is located at the front end of the chamber and discharges the kneaded material In the screw-type kneader formed with the material discharge part,
A cooling opening located on the side of the barrel that is located closer to the front end of the chamber than the supply port and communicates with the chamber, and an intake air that is located closer to the front end of the chamber than the cooling opening and communicates with the chamber Through the opening for use,
In the cooling opening,
Provided with a volatile refrigerant spraying device for spraying volatile refrigerant toward the chamber and for spraying the volatile refrigerant in the form of bubbles or mist,
In the intake opening,
A screw-type kneader comprising a suction mechanism section that sucks a gas that is contained in the volatile refrigerant spraying apparatus and vaporizes the volatile refrigerant . 請求項１に記載のスクリュー式混練機において、
前記冷却用開口部を前記バレルの上側かつ前記混練物の非充満位置に配置形成する
ことを特徴とするスクリュー式混練機。 In the screw kneader according to claim 1,
The screw-type kneader characterized in that the cooling opening is disposed on the upper side of the barrel and at a non-full position of the kneaded product.
JP2008012124A 2008-01-23 2008-01-23 Screw kneader Expired - Fee Related JP5095425B2 (en)

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JP2008012124A JP5095425B2 (en) 2008-01-23 2008-01-23 Screw kneader
CN2009801027333A CN101925401A (en) 2008-01-23 2009-01-23 Screw type kneader
PCT/JP2009/051117 WO2009093710A1 (en) 2008-01-23 2009-01-23 Screw type kneader

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CA2780990C (en) * 2009-11-25 2018-03-20 Solios Carbone Method and machine for manufacturing paste, in particular carbon paste for making aluminum production electrodes
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JP6132308B2 (en) * 2012-12-27 2017-05-24 日東電工株式会社 Method for producing resin composition for optical semiconductor
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JP6033895B2 (en) * 2015-01-13 2016-11-30 株式会社日本製鋼所 Extruder with vent
CN113580408B (en) * 2021-09-26 2021-12-03 如皋市井上捏和机械厂 Material temperature detection system in kneading machine

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JP3905397B2 (en) * 2002-02-21 2007-04-18 株式会社神戸製鋼所 Kneading device for rubber or rubber-based composition
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