JPH0639833A - Kneading device - Google Patents
Kneading deviceInfo
- Publication number
- JPH0639833A JPH0639833A JP4197176A JP19717692A JPH0639833A JP H0639833 A JPH0639833 A JP H0639833A JP 4197176 A JP4197176 A JP 4197176A JP 19717692 A JP19717692 A JP 19717692A JP H0639833 A JPH0639833 A JP H0639833A
- Authority
- JP
- Japan
- Prior art keywords
- kneading
- discharge port
- chamber
- housing
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004898 kneading Methods 0.000 title claims abstract description 102
- 239000000463 material Substances 0.000 claims abstract description 68
- 239000011347 resin Substances 0.000 abstract description 12
- 229920005989 resin Polymers 0.000 abstract description 12
- 238000010008 shearing Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Classifications
-
- 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
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- 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
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/465—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft each shaft comprising rotor parts of the Banbury type in addition to screw parts
-
- 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
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- 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
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- 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
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- 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
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- 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
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
-
- 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
- B29C48/92—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ポリオレフィンの混練
造粒等に使用される混練装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kneading device used for kneading and granulating polyolefins.
【０００２】[0002]
【従来の技術】近年、ポリエチレンおよびポリプロピレ
ン等の製造用混練造粒設備の１系列の能力は益々増大し
ており、またプラスチックの高機能化、高付加価値化に
より樹脂粘度の範囲が拡大している。このため、従来の
２軸混練機と単軸押出機の組合せでは、高粘度樹脂にお
いて押出機の喰い込み不良により能力の限界があり、ま
た押出機での異常発熱のため品質面からも適用が制約さ
れてきている。2. Description of the Related Art In recent years, the capacity of one series of kneading and granulating equipment for producing polyethylene, polypropylene and the like has been increasing more and more, and the range of resin viscosity has been expanded due to high performance and high added value of plastics. There is. For this reason, in the conventional combination of the twin-screw kneader and the single-screw extruder, there is a limit to the capacity of the high-viscosity resin due to the defective biting of the extruder, and the abnormal heat generation in the extruder also limits its application. It has been constrained.
【０００３】そこで前記押出機に代えてギヤポンプを混
練機に接続し、混練物をギヤポンプにより昇圧してペレ
タイザー（造粒設備）に供給するようにした混練装置
が、例えば、特開平4-146103号公報に記載の如く、既に
提案されている。この混練装置は、ハウジングの一端部
に材料供給口が、同他端部に材料排出口が形成され、前
記ハウジング内に前記材料供給口と排出口を連通する混
練室が形成され、該混練室内に混練ロータが回転自在に
備えられた混練機の、前記混練材料排出口にギヤポンプ
が接続されてなるものであった。Therefore, a kneading apparatus, in which a gear pump is connected to the kneading machine instead of the extruder and the pressure of the kneaded material is increased by the gear pump and supplied to a pelletizer (granulating equipment), is disclosed in, for example, JP-A-4-146103. It has already been proposed as described in the publication. In this kneading device, a material supply port is formed at one end of the housing, and a material discharge port is formed at the other end thereof, and a kneading chamber is formed in the housing for communicating the material supply port with the discharge port. In the kneading machine in which the kneading rotor is rotatably provided, a gear pump is connected to the kneading material discharge port.
【０００４】この従来の混練装置においては、ギヤポン
プの入口圧力（混練機の材料排出口の圧力）を制御し、
混練室内における材料の充満度を変化させ、混練物の温
度あるいは混練度を制御していた。In this conventional kneading apparatus, the inlet pressure of the gear pump (the pressure of the material discharge port of the kneader) is controlled,
The temperature of the kneaded material or the kneading degree was controlled by changing the filling degree of the material in the kneading chamber.
【０００５】[0005]
【発明が解決しようとする課題】前記従来の混練装置に
おいて、強混練を行う場合は、材料排出口圧力を約５kg
/cm2程度と高めにセットしていた。この様に材料排出口
の圧力を高く設定すると、該排出口部の軸シール部分よ
り溶融樹脂が漏れ易くなると言う問題があった。また、
混練度の調整を材料排出口の圧力制御により行う従来の
ものでは、圧力センサーの取付位置の違いや、樹脂の粘
度の違いにより、混練度に差が生じると言う問題があっ
た。When performing strong kneading in the above-mentioned conventional kneading device, the material discharge port pressure is about 5 kg.
It was set to a high value of about / cm 2 . When the pressure of the material discharge port is set high as described above, there is a problem that the molten resin is likely to leak from the shaft seal portion of the discharge port portion. Also,
In the conventional one in which the kneading degree is adjusted by controlling the pressure of the material discharge port, there is a problem that the kneading degree varies depending on the mounting position of the pressure sensor and the viscosity of the resin.
【０００６】更に、一部の材料においては、混練室内で
混練作用を受けないでギヤポンプに送り込まれてしま
う、いわゆる、ショートパスが発生すると言う問題があ
った。そこで、本発明は、樹脂漏れやショートパスが生
じず、且つ、混練度を均一に制御できる混練装置を提供
することを目的とする。Furthermore, some materials have a problem that a so-called short path occurs, in which they are fed into the gear pump without being subjected to the kneading action in the kneading chamber. Therefore, an object of the present invention is to provide a kneading device that does not cause resin leakage or short pass and can uniformly control the kneading degree.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に、本発明は次の手段を講じた。即ち、本発明の特徴と
するところは、ハウジングの一端部に材料供給口が、同
他端部に材料排出口が形成され、前記ハウジング内に前
記材料供給口と排出口を連通する混練室が形成され、該
混練室内に混練ロータが回転自在に備えられた混練機
の、前記混練材料排出口にギヤポンプが接続された混練
装置において、前記混練室内面と前記混練ロータとの間
隙を調整自在とするゲート装置が、前記混練材料排出口
近傍に設けられた点にある。In order to achieve the above object, the present invention takes the following means. That is, a feature of the present invention is that a material supply port is formed at one end of the housing and a material discharge port is formed at the other end thereof, and a kneading chamber that connects the material supply port and the discharge port is formed in the housing. In a kneading machine having a kneading rotor formed rotatably provided in the kneading chamber and having a gear pump connected to the kneading material discharge port, a gap between the kneading chamber inner surface and the kneading rotor can be adjusted. A gate device is provided near the kneading material discharge port.
【０００８】[0008]
【作用】前記構成の本発明によれば、材料供給口から供
給された樹脂材料は、混練ロータの回転により混練室内
を通過して材料排出口に至り、ギヤポンプにより高圧力
に昇圧され、次工程の造粒設備に供給される。前記材料
は、混練室内において混練ロータの回転による強いせん
断作用により、ポリマの可塑化、溶融、充填材・添加剤
の混合分散が行われ混練される。この混練度合の制御は
ゲート装置の調整により行われる。According to the present invention having the above-mentioned structure, the resin material supplied from the material supply port passes through the kneading chamber by the rotation of the kneading rotor to reach the material discharge port, and the pressure is increased to a high pressure by the gear pump. Is supplied to the granulation equipment. The above materials are kneaded in the kneading chamber by the strong shearing action of the rotation of the kneading rotor to plasticize and melt the polymer and mix and disperse the filler and the additive. The kneading degree is controlled by adjusting the gate device.
【０００９】即ち、混練室内面と混練ロータとの間隙を
ゲート装置により調整することにより、混練材料の通過
量が制御されるので混練度が制御される。前記間隙を絞
ることにより、未混練物（ゲル）がゲート装置を素抜け
することが防止され、ショートパスが防止される。ま
た、ゲート部の間隙を通過する際、強いせん断作用を受
け、混練物中に含まれるゲルが消去される。That is, by adjusting the gap between the inner surface of the kneading chamber and the kneading rotor by the gate device, the passage amount of the kneading material is controlled, so that the kneading degree is controlled. By squeezing the gap, it is possible to prevent unkneaded material (gel) from passing through the gate device, and to prevent short pass. Further, when passing through the gap of the gate portion, the gel contained in the kneaded material is erased due to the strong shearing action.
【００１０】前記ゲート装置は、材料排出口の近傍に設
けられているので、ゲート装置の影響は混練室全長に及
び、従来のように排出口の圧力を制御しなくても混練度
が調整される。従って、従来のように排出口の圧力を高
圧に制御しなくてもよいので、軸シール部からの樹脂漏
れが防止される。混練度の調整は、従来の樹脂圧力制御
のような２次的パラメータ制御ではなく、ゲート開度制
御という直接制御のため、圧力センサーの取付位置の違
いや樹脂の粘度の違いによる混練度合の差が生じなくな
る。Since the gate device is provided in the vicinity of the material discharge port, the influence of the gate device extends over the entire length of the kneading chamber, and the kneading degree is adjusted without controlling the pressure of the discharge port as in the conventional case. It Therefore, since it is not necessary to control the pressure of the discharge port to a high pressure as in the conventional case, the resin leakage from the shaft seal portion is prevented. Since the kneading degree is adjusted not by the secondary parameter control like the conventional resin pressure control but by direct control of gate opening control, the difference in the kneading degree due to the difference in the mounting position of the pressure sensor and the difference in the resin viscosity. Will not occur.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。図１において、混練装置は混練機1 とギヤポンプ2
とから成る。ギヤポンプ2の出口にペレタイザー3 が接
続されて混練造粒装置が構成されている。前記混練機1
は、ハウジング4 を有し、該ハウジング4 の一端部に材
料供給口5 が、同他端部に材料排出口6 が形成されてい
る。前記ハウジング4 内に前記材料供給口5 と排出口6
を連通する混練室7 が形成されている。該混練室7 内に
混練ロータ8 が回転自在に備えられている。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the kneading device is a kneading machine 1 and a gear pump 2.
It consists of and. The pelletizer 3 is connected to the outlet of the gear pump 2 to form a kneading and granulating device. The kneader 1
Has a housing 4, a material supply port 5 is formed at one end of the housing 4, and a material discharge port 6 is formed at the other end thereof. The material supply port 5 and the discharge port 6 in the housing 4
A kneading chamber 7 that communicates with each other is formed. A kneading rotor 8 is rotatably provided in the kneading chamber 7.
【００１２】前記混練ロータ8 は、互いに平行に配置さ
れた２軸一対のものからなり、材料排出口側端部はハウ
ジング4 を貫通して外方に突出しており、該突出端部に
回転継手9 を介して冷却装置が接続されている。混練ロ
ータ8 の材料排出口側端部は、ベアリングやシール部材
10を介してハウジング4 に回転自在に支持されている。The kneading rotor 8 is composed of a pair of biaxial shafts arranged in parallel with each other, and an end portion on the material discharge port side penetrates through the housing 4 and projects outward, and a rotary joint is attached to the projecting end portion. Cooling system is connected via 9. The material discharge port side end of the kneading rotor 8 is
It is rotatably supported by the housing 4 via 10.
【００１３】両ロータ8 は材料供給口側において互いに
ギヤ11で連動連結されている。一方の混練ロータ8 のギ
ヤ側端部は、前記ハウジング4 を貫通して外方に突出
し、該突出端部に、カップリング12を介してロータ軸駆
動装置（図示省略）が連結されている。前記混練ロータ
8 は、材料供給口5 に対応した部分が螺旋状に形成され
たフィード部13とされ、排出口側が翼状に形成された混
練翼部14とされている。Both rotors 8 are interlockingly connected to each other by a gear 11 on the material supply port side. One end of the kneading rotor 8 on the gear side penetrates the housing 4 and projects outward, and a rotor shaft driving device (not shown) is connected to the projecting end via a coupling 12. The kneading rotor
Reference numeral 8 denotes a feed portion 13 in which a portion corresponding to the material supply port 5 is formed in a spiral shape, and a discharge blade side is a kneading blade portion 14 formed in a blade shape.
【００１４】前記混練翼部14の終端、即ち、材料排出口
6 の直前にゲート装置15が設けられている。このゲート
装置15は、ハウジング4 に上下方向摺動自在に嵌合され
た、上下一対のゲート板16を有し、該両ゲート板16は、
ゲート駆動装置17により互いに同量だけ接近または離反
するよう構成されている。図２に示すように、前記ゲー
ト板16に対応する位置の混練ロータ8 の断面形状は、円
形とされている。上下一対のゲート板16の対向端部に
は、該ゲート板16が互いに密着接当したとき混練ロータ
8 の外周面に所定の間隙を形成するよう、半円形の孔18
が形成されている。The end of the kneading blade portion 14, that is, the material discharge port
A gate device 15 is provided just before the 6. The gate device 15 has a pair of upper and lower gate plates 16 fitted in the housing 4 so as to be slidable in the vertical direction.
The gate driving device 17 is configured to approach or move away from each other by the same amount. As shown in FIG. 2, the cross-sectional shape of the kneading rotor 8 at the position corresponding to the gate plate 16 is circular. When the gate plates 16 come into close contact with each other, the kneading rotors are provided at the opposite end portions of the pair of upper and lower gate plates 16.
A semi-circular hole 18 to form a specified gap on the outer peripheral surface of
Are formed.
【００１５】従って、前記ゲート板16を互いに接近また
は離反させることにより、前記間隙が調整され、該間隙
を通過する混練材料の流動抵抗がコントロールされる。
前記ギヤポンプ2 は、その材料入口がダクト19を介して
前記材料排出口6 に密閉状に接続されている。このダク
ト19内に、圧力検出手段20及び温度検出手段21が設けら
れている。Therefore, by moving the gate plates 16 toward or away from each other, the gap is adjusted and the flow resistance of the kneading material passing through the gap is controlled.
The material inlet of the gear pump 2 is hermetically connected to the material outlet 6 via a duct 19. A pressure detecting means 20 and a temperature detecting means 21 are provided in the duct 19.
【００１６】前記圧力検出手段20は、ダクト19の混練物
の圧力を検出して、該圧力が一定圧を保つようにギヤポ
ンプ2の回転数をコントロールする。この一定圧力と
は、混練物がダクト19内に充満した状態の圧力であり、
前記「従来の技術」で示した圧力制御するものの制御圧
力よりも低いレベルにある。前記温度検出手段21は、混
練物の温度を検出して、前記ゲート装置15のゲート開度
（間隙）をコントロールすることにより、混練物の温度
を制御するものである。The pressure detecting means 20 detects the pressure of the kneaded material in the duct 19 and controls the number of revolutions of the gear pump 2 so that the pressure remains constant. This constant pressure is the pressure when the kneaded material is filled in the duct 19,
The pressure is controlled at a level lower than that of the pressure control shown in the above-mentioned "prior art". The temperature detecting means 21 detects the temperature of the kneaded material and controls the gate opening (gap) of the gate device 15 to control the temperature of the kneaded material.
【００１７】前記構成の実施例によれば、材料供給口5
から混練室7 へ供給された樹脂材料は、回転する混練ロ
ータ8 のフィード部13により混練翼部14側に送られる。
混練翼部14へ送られてきた材料は、回転する混練翼部14
により、強いせん断作用を受け、ポリマの可塑化、溶
融、充填材・添加剤の混合分散が行われ混練される。混
練された材料は、ゲート装置15のゲート板16と混練ロー
タ8 間の間隙を通り材料排出口6 に送られる。そしてダ
クト19を通りギヤポンプ2 に至り、該ギヤポンプ2 によ
り高圧力に昇圧され、ペレタイザー3 に供給される。According to the embodiment having the above structure, the material supply port 5
The resin material supplied from the kneading chamber 7 to the kneading chamber 14 is sent to the kneading blade portion 14 side by the feed portion 13 of the rotating kneading rotor 8.
The material sent to the kneading blade portion 14 is rotated by the kneading blade portion 14.
As a result, the polymer is subjected to a strong shearing action to plasticize the polymer, melt, and mix and disperse the filler and the additive to be kneaded. The kneaded material is sent to the material discharge port 6 through the gap between the gate plate 16 of the gate device 15 and the kneading rotor 8. Then, the gas passes through the duct 19 to reach the gear pump 2, is pressurized to a high pressure by the gear pump 2, and is supplied to the pelletizer 3.
【００１８】前記材料の混練度合（混練物の温度）の制
御は、温度検出手段21による温度検出により、ゲート装
置15の開度を調整することにより行われる。そして、圧
力検出手段20により、混練物のダクト19内充満度合を検
出し、ギヤポンプ2 の回転数を制御する。その結果、材
料排出口6 内の圧力上昇が防止されるので、シール部材
10からの材料漏洩が防止される。The kneading degree of the materials (the temperature of the kneaded material) is controlled by detecting the temperature by the temperature detecting means 21 and adjusting the opening degree of the gate device 15. Then, the pressure detecting means 20 detects the filling degree of the kneaded material in the duct 19 and controls the rotation speed of the gear pump 2. As a result, the rise in pressure inside the material discharge port 6 is prevented, and the seal member
Material leakage from 10 is prevented.
【００１９】また前記ゲート装置15の間隙を絞ることに
より、未混練物（ゲル）がゲート装置15を素抜けするこ
とが防止され、ショートパスが防止される。更に、材料
がゲート装置15の間隙を通過する際、強いせん断作用を
受け、混練物中に含まれるゲルが消去される。図３に示
すものは、本発明の他の実施例であり、混練機として２
段式のものが示されている。ハウジング4 に形成された
混練室7 は、その長手方向に沿って、第１混練室22と第
２混練室23に区画されている。第１混練室22と第２混練
室23とは第１ゲート装置24によって区画されている。ハ
ウジング4 には、第１混練室22の始端部に連通する材料
供給口5 と、第２混練室23の始端部に連通する脱気口25
と、及び、第２混練室23の終端部に連通する材料排出口
6 とが形成されている。Further, by squeezing the gap of the gate device 15, it is possible to prevent unkneaded material (gel) from passing through the gate device 15 and to prevent a short pass. Furthermore, when the material passes through the gap of the gate device 15, it undergoes a strong shearing action, and the gel contained in the kneaded material is erased. FIG. 3 shows another embodiment of the present invention, in which a kneading machine
A tiered version is shown. The kneading chamber 7 formed in the housing 4 is divided into a first kneading chamber 22 and a second kneading chamber 23 along the longitudinal direction thereof. The first kneading chamber 22 and the second kneading chamber 23 are partitioned by a first gate device 24. The housing 4 has a material supply port 5 communicating with the starting end of the first kneading chamber 22 and a degassing port 25 communicating with the starting end of the second kneading chamber 23.
And the material discharge port communicating with the end of the second kneading chamber 23.
6 and are formed.
【００２０】混練ロータ8 は、前記第１及び第２混練室
22,23 を貫通しており、その長手方向に沿って、第１フ
ィード部26、第１混練翼部27、第２フィード部28、及
び、第２混練翼部29が形成されている。第１フィード部
26は材料供給口5 に、第２フィード部28は脱気口25に各
々対応している。前記第２混練翼部23の終端部と材料排
出口6 との間に、第２ゲート装置15が設けられている。
この第２ゲート装置15と前記第１ゲート装置24は、前記
図１に示したゲート装置と同様の構造である。また、図
３では圧力検出手段及び温度検出手段は図示省略されて
いるが、図１のものと同様に設けられている。The kneading rotor 8 comprises the first and second kneading chambers.
A first feed section 26, a first kneading blade section 27, a second feed section 28, and a second kneading blade section 29 are formed along the longitudinal direction of the first and second feed sections 26, 22. 1st feed section
Reference numeral 26 corresponds to the material supply port 5, and the second feed section 28 corresponds to the degassing port 25. A second gate device 15 is provided between the end of the second kneading blade portion 23 and the material discharge port 6.
The second gate device 15 and the first gate device 24 have the same structure as the gate device shown in FIG. Further, although the pressure detecting means and the temperature detecting means are omitted in FIG. 3, they are provided similarly to those in FIG.
【００２１】尚、本発明は前記各実施例に限定されるも
のではない。The present invention is not limited to the above embodiments.
【００２２】[0022]
【発明の効果】本発明によれば、樹脂漏れやショートパ
スが生じず、且つ、混練度を均一に制御できる。According to the present invention, resin leakage and short pass do not occur, and the kneading degree can be controlled uniformly.
【図１】本発明の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】ゲート装置の断面図である。FIG. 2 is a cross-sectional view of a gate device.
【図３】本発明の他の実施例を示す断面図である。FIG. 3 is a sectional view showing another embodiment of the present invention.
１ 混練機 ２ ギヤポンプ ４ ハウジング ５ 材料供給口 ６ 材料排出口 ７ 混練室 ８ 混練ロータ １５ ゲート装置 1 kneader 2 gear pump 4 housing 5 material supply port 6 material discharge port 7 kneading chamber 8 kneading rotor 15 gate device
Claims (1)
他端部に材料排出口が形成され、前記ハウジング内に前
記材料供給口と排出口を連通する混練室が形成され、該
混練室内に混練ロータが回転自在に備えられた混練機
の、前記混練材料排出口にギヤポンプが接続された混練
装置において、 前記混練室内面と前記混練ロータとの間隙を調整自在と
するゲート装置が、前記混練材料排出口近傍に設けられ
たことを特徴とする混練装置。1. A material supply port is formed at one end of the housing, and a material discharge port is formed at the other end thereof, and a kneading chamber is formed in the housing for communicating the material supply port with the discharge port. In a kneading machine in which a kneading rotor is rotatably provided, in the kneading device in which a gear pump is connected to the kneading material discharge port, a gate device that can adjust a gap between the kneading chamber inner surface and the kneading rotor is A kneading device provided near the kneading material discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4197176A JP3035082B2 (en) | 1992-07-23 | 1992-07-23 | Kneading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4197176A JP3035082B2 (en) | 1992-07-23 | 1992-07-23 | Kneading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0639833A true JPH0639833A (en) | 1994-02-15 |
| JP3035082B2 JP3035082B2 (en) | 2000-04-17 |
Family
ID=16370070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4197176A Expired - Lifetime JP3035082B2 (en) | 1992-07-23 | 1992-07-23 | Kneading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3035082B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015093446A (en) * | 2013-11-13 | 2015-05-18 | 株式会社神戸製鋼所 | Continuous kneader |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5005506B2 (en) | 2007-11-02 | 2012-08-22 | 株式会社神戸製鋼所 | Kneading degree adjustment method |
-
1992
- 1992-07-23 JP JP4197176A patent/JP3035082B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015093446A (en) * | 2013-11-13 | 2015-05-18 | 株式会社神戸製鋼所 | Continuous kneader |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3035082B2 (en) | 2000-04-17 |
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