JPH0428505A - Gate device for biaxial kneader - Google Patents
Gate device for biaxial kneaderInfo
- Publication number
- JPH0428505A JPH0428505A JP2134499A JP13449990A JPH0428505A JP H0428505 A JPH0428505 A JP H0428505A JP 2134499 A JP2134499 A JP 2134499A JP 13449990 A JP13449990 A JP 13449990A JP H0428505 A JPH0428505 A JP H0428505A
- Authority
- JP
- Japan
- Prior art keywords
- dam
- section
- kneading
- spaces
- gates
- 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 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 210000000078 claw Anatomy 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- 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
- B29B7/482—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 provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- 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
- B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
-
- 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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/55—Screws having reverse-feeding elements
-
- 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
-
- 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
- B29C48/256—Exchangeable extruder parts
- B29C48/2565—Barrel parts
-
- 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
- B29C48/40—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 two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—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 two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
-
- 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
- B29C48/68—Barrels or cylinders
- B29C48/682—Barrels or cylinders for twin screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、プラスチック・ゴム等の混純によるホモジナ
イジング、マスクバッチ、コンパウンドの製造、ポリマ
ブレンド等のプロセスに使用される２軸混練機のゲート
装置に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a twin-screw kneader used in processes such as homogenization by mixing and purifying plastics and rubbers, mask batches, compound production, and polymer blending. The present invention relates to a gate device.
（従来の技術）
従来、この種のゲート装置としては、第８図及び第９図
に示すものが一般的であった。(Prior Art) Conventionally, as this type of gate device, those shown in FIGS. 8 and 9 have been common.
同図において、２６は２軸混練機のハウジング、２７は
該ハウジング内２６に形成された混練室であり、該混線
室２７に、左右一対のロータ２Ｂ、２９が回転自在に内
装されている。In the figure, 26 is a housing of a two-shaft kneader, 27 is a kneading chamber formed in the housing 26, and a pair of left and right rotors 2B, 29 are rotatably housed in the mixing chamber 27.
前記ロータ２Ｂ、２９の周面には、被混線材を一定方向
に搬送するためのフィード部３０、及び被混線材を混練
するための混練部３Ｉが、それぞれ軸方向に分かれて形
成され、それら各部３０．３１の間には、境界としての
リング状のダム部３２が形成されている。On the peripheral surfaces of the rotors 2B and 29, a feed section 30 for conveying the wire material to be mixed in a certain direction and a kneading section 3I for kneading the wire material to be mixed are formed separately in the axial direction. A ring-shaped dam part 32 is formed as a boundary between each part 30, 31.
３３．３４は上下一対のゲートであり、通常前記ダム部
３２が設けられた軸方向位置に、即ち、ハウジング２６
の軸方向略中央若しくは排出口付近に設けられる。この
上下ゲート３３．３４は、図外の駆動機構によ、て混練
室２７内に突出して互いに接近離反するようにされて各
ゲート３３．３４の円弧状凹部３５と前記ダム部３２と
の間隙ｅ゛が変化するようになっており、このことによ
って、混線室２７内を流れようとする被混線材の流量、
即ち、混線具合を調整できるようになっている。Reference numerals 33 and 34 denote a pair of upper and lower gates, which are normally located at the axial position where the dam portion 32 is provided, that is, the housing 26.
It is provided approximately at the center in the axial direction or near the discharge port. The upper and lower gates 33, 34 are caused to protrude into the kneading chamber 27 and move toward and away from each other by a drive mechanism (not shown), so that there is a gap between the arc-shaped recess 35 of each gate 33, 34 and the dam part 32. e゛ changes, and as a result, the flow rate of the material to be mixed that is about to flow in the mixing chamber 27,
In other words, the degree of crosstalk can be adjusted.
（発明が解決しようとする課題）
ところで、上記従来の技術においては、第９図に示すよ
うに、ダム部３２の外径がフィード部３０及び混練部３
１の外径と路間−に設定されているのが通常であり、左
右ロータ２Ｂ、２９のダム部３２は、第８図に示すＡ点
（ダム部３２同志の接触部）とＢ点（ダム部３２とハウ
ジング２６との接触部）がそれぞれ接点とされていた。(Problem to be Solved by the Invention) In the above-mentioned conventional technology, as shown in FIG.
Normally, the dam portions 32 of the left and right rotors 2B and 29 are set at a point A (the contact area between the dam portions 32) and a point B (the contact area between the dam portions 32) shown in FIG. The contact portion between the dam portion 32 and the housing 26 was used as a contact point.
そこで、前記上下ゲート３３．３４の衝合部分は、局部
発熱、摩耗等をさけるため、若しくは加工精度の問題か
ら、鋭角部がなくなるように切除されて平坦面とされ、
必然的に空間ａ、ｂ、ｃが生じるように形成されている
。Therefore, in order to avoid local heat generation, abrasion, etc., or due to problems with processing accuracy, the abutting portions of the upper and lower gates 33 and 34 are cut off to eliminate sharp corners and are made into flat surfaces.
It is formed so that spaces a, b, and c inevitably occur.
従って、２軸混練機が、−船釣なロータ異方向回転・非
充満・非かみ合せタイプである場合、前記Ａ点及びＢ点
付近での被混線材の流れは非常に複雑となっている関係
上、上下ゲート１８．１９が最も接近する絞りこみ時に
おいても、被混線材が前記空間ａ、ｂ、ｃからショート
バス（素抜け）して良好な混練調整ができないという不
都合が生じていた。Therefore, if the two-shaft kneading machine is of the type with rotors rotating in different directions, non-filling, and non-interlocking, the flow of the mixed wire material near points A and B is extremely complicated. For this reason, even during narrowing, when the upper and lower gates 18 and 19 are closest, the materials to be mixed are short-circuited from the spaces a, b, and c, resulting in the inconvenience that good kneading adjustment cannot be achieved. .
本発明は、上述のような実状に鑑みてなされたもので、
その目的とするところは、被混線材のショートパスの発
生を防止して、円滑でかつ確実にしてしかも良好な混練
が効果的に行ないうる混練機を提供するにある。The present invention was made in view of the above-mentioned circumstances, and
The purpose is to provide a kneading machine which can effectively perform smooth, reliable, and good kneading by preventing the occurrence of short passes of the materials to be mixed.
（課題を解決するための手段）
本発明では、上記目的を達成するために、次の技術的手
段を講じた。(Means for Solving the Problems) In the present invention, the following technical measures were taken in order to achieve the above object.
すなわち、請求項（１）記載の発明は、ハウジング２内
に形成された混線室に、一対のロータ３，４が回転自在
に挿通され、該ロータ３，４の周面には、被混線材のフ
ィード部１１及び混練部１２がダム部１４を介して軸方
向に分かれて形成されており、上下一対のゲート １８
．１９が前記ダム部１４に対して互いに接近離反自在に
設けられて被混線材の開度を調整自在とした２軸混練機
のゲート装置において、前記ダム部１４の外径をフィー
ド部１１及び混練機１２の外径よりも小さくしてダム部
１４．１４の間、及びハウジング２とその各ダム部１４
．１４との間に上下ゲート１８．１９の衝合スペースＳ
、、Ｓｔ、Ｓ、を設け、該上下ゲート １８．１９には
、その衝合スペースＳ、、Ｓよ、Ｓ、を閉塞する衝合部
分Ｒ＋、Ｒｚ、ｌ’ｈが形成されていることを特徴とす
る。That is, in the invention described in claim (1), a pair of rotors 3 and 4 are rotatably inserted into a crosstalk chamber formed in a housing 2, and a wire to be mixed is provided on the circumferential surface of the rotors 3 and 4. A feed section 11 and a kneading section 12 are formed separated in the axial direction via a dam section 14, and a pair of upper and lower gates 18 are formed.
．． In the gate device of the two-shaft kneading machine, the gates 19 are provided so as to be able to move toward and away from each other with respect to the dam part 14, and the opening degree of the wire material to be mixed can be adjusted. between the dam part 14.14 and between the housing 2 and each of its dam parts 14.
．． 14 and the upper and lower gates 18 and 19 abutment space S
, , St, S, are provided, and the upper and lower gates 18.19 are formed with abutting portions R+, Rz, l'h that close the abutment spaces S, , S, S, and S, respectively. Features.
また、請求項（２）記載の発明は、前記上下ゲート１８
、１９の衝合部分Ｒ＋、Ｒｚ、Ｒ：＋のうち、少なくと
もダム部１４．１４間にある上下衝合部分Ｒ＋の各端面
には、ゲート１８．１９離反時においても咬合しあう咬
合爪２１．２１が夫々突設されていることを特徴とする
。Further, the invention according to claim (2) provides that the upper and lower gates 18
, 19 abutting portions R+, Rz, R:+, each end face of at least the upper and lower abutting portion R+ located between the dam portion 14.14 has an interlocking claw 21 that engages with each other even when the gate 18.19 is separated. .21 are respectively provided protrudingly.
（作 用）
本発明においては、ダム部１４の外径をフィード部１１
及び混練部Ｉ２の外径よりも小さくし、第１図に示すよ
うに衝合スペースＳｒ、Ｓｔ、Ｓｓを設け、上下ゲー目
８，１９をその衝合スペースＳ、、Ｓ、、Ｓ、＋に至る
まで延設してそのスペースを閉塞する衝合部分Ｒ１゜Ｒ
，、Ｒ，を形成する。(Function) In the present invention, the outer diameter of the dam part 14 is set to the feed part 11.
The outer diameter of the kneading section I2 is smaller than that of the kneading section I2, and abutment spaces Sr, St, Ss are provided as shown in FIG. The abutment part R1゜R that extends until the end and closes the space.
,,R, are formed.
従って、上下ゲート １８．１９が最接近して衝合して
いるときには、従来例において生じていたすき間（空間
ａ、ｂ、ｃ）が住しることがなく、いわゆるショートパ
スが発生しない。尚、上下ゲート１８、１９が離反して
それらの衝合部分Ｒ１，Ｒ，、Ｒ３間に間隙が生じても
、その間隙は、上下ゲート１８．１９の円弧状凹部２０
とダム部１４との間で通常性じる間隙ｅよりも小さく、
ショートバスによる問題はほとんど生じない。Therefore, when the upper and lower gates 18 and 19 are closest to each other, the gaps (spaces a, b, c) that occur in the conventional example do not exist, and so-called short paths do not occur. Incidentally, even if the upper and lower gates 18 and 19 are separated and a gap is created between their abutting portions R1, R, and R3, the gap is formed by the arcuate recess 20 of the upper and lower gates 18 and 19.
and the dam portion 14, which is smaller than the gap e that normally exists between the
Short buses rarely cause problems.
また、本発明においては、特に被混線材の流れが複雑な
ためショートパスの問題が生じやすい各ダム部１４．１
４間にある上下ゲート１８．１９の衝合部分Ｒ８に、咬
合爪２１．２１を突設して、ショートパスの発生をより
完全に防止している。In addition, in the present invention, each dam portion 14.
An engaging claw 21.21 is provided protruding from the abutting portion R8 of the upper and lower gates 18, 19 located between the upper and lower gates 18, 19 to more completely prevent the occurrence of a short pass.
（実施例） 以下、図面に基づいて本発明の一実施例を説明する。(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.
第４図において、１は２軸混練機を示し、ハウジング２
と、該ハウジング２内に回転自在に挿通されたロータ３
，４ と、ロータ駆動手段５と、ゲート装置６とにより
主構成されている。そして、ハウジング２は、中空で軸
方向に２つの混練室７，８に区分されており、ベース９
上に脚１０を介して支持されている。In Fig. 4, 1 indicates a two-shaft kneading machine, and housing 2
and a rotor 3 rotatably inserted into the housing 2.
, 4, a rotor drive means 5, and a gate device 6. The housing 2 is hollow and divided into two kneading chambers 7 and 8 in the axial direction, and a base 9
It is supported on the top via legs 10.
前記ロータ３，４は、水平方向に並ぶ左右２軸−対から
成り、一方のロータ３の軸端は前記駆動手段５に連結さ
れ、他方のロータ４と図外のギヤによって噛合されて、
両ロータ３，４は互いに内向き下方向く異方向）に回転
するようになっている。The rotors 3 and 4 consist of a pair of left and right shafts arranged in the horizontal direction, the shaft end of one rotor 3 is connected to the drive means 5, and is meshed with the other rotor 4 by a gear (not shown).
Both rotors 3 and 4 are configured to rotate inwardly and downwardly (in different directions) with respect to each other.
また、各ロータ３，４の周面には、前記各混練室７．８
に対応してフィード部１１と混線部１２が一組ずつ形成
され、両混練室７，８の接続口１３に位置するところに
は、リング状のダム部１４が形成されている。尚、１５
．１６は被混線材の供給口であり、各混線室７，８のフ
ィード部ｌｌ側に夫々開設されており、１７は被混線材
の排出口である。Further, each of the kneading chambers 7.8 is provided on the circumferential surface of each rotor 3, 4.
A feed section 11 and a cross section 12 are formed in correspondence with each other, and a ring-shaped dam section 14 is formed at the connection port 13 of both the kneading chambers 7 and 8. In addition, 15
．． Reference numeral 16 denotes a supply port for the material to be mixed, which is opened on the feed section ll side of each of the mixing chambers 7 and 8, and 17 is a discharge port for the material to be mixed.
そして、フィード部１１及び混練部１２は、第２図に示
すように、その外径が互いに路間−とされ、前記ダム部
１４の外径はそれらの外径よりも小さくされており、こ
のことによって、第１図に示すように、ダム部１４．１
４間、及びダム部１４．１４とハウジング２内面間には
、夫々横方向の衝合スペースｓ、、ｓｚ、ｓ、が形成さ
れる。As shown in FIG. 2, the feed section 11 and the kneading section 12 have their outer diameters spaced apart from each other, and the outer diameter of the dam section 14 is smaller than their outer diameters. By this, as shown in FIG.
Lateral abutment spaces s, sz, s are formed between the dam portions 14 and 14, and between the dam portions 14.14 and the inner surface of the housing 2, respectively.
前記ゲート装置６は、ハウジング２の前後方向において
このダム部１４が設けられている位置に配置され、図外
の駆動手段及びねじ軸等の作用により混練室２の接続口
１３へ互いに接近離反自在とされた上下ゲート １８．
１９を有する。The gate devices 6 are arranged at the position where the dam portion 14 is provided in the front-rear direction of the housing 2, and can freely approach and separate from each other to the connection port 13 of the kneading chamber 2 by the action of a drive means and screw shaft (not shown), etc. Upper and lower gates 18.
It has 19.
この上下ゲート１８．１９の接合側には、夫々ダム部１
４の断面と同心状の円弧状凹部２０が形成されており、
このことによって水平方向中央及び両側に衝合部分ＲＩ
＋ＲＺ＋Ｒ３が設けられて、これら各部分ＲＩ。Dam portions 1 are provided on the joint sides of the upper and lower gates 18 and 19, respectively.
An arcuate recess 20 concentric with the cross section of 4 is formed,
This allows the abutting portions RI to appear in the horizontal center and on both sides.
+RZ+R3 are provided for each of these portions RI.
Ｒｚ、Ｒｉが前記衝合スペースＳｌ、Ｓｔ、Ｓ：ｌに入
り込んで該スペースＳｌ＋ＳＺ＋５３を閉塞するように
なっている。Rz and Ri enter the abutting spaces Sl, St, S:l and block the spaces Sl+SZ+53.
そして、本実施例では、第３図に示すように、この衝合
部分Ｒ＋、Ｒｚ、Ｒｓの端面に夫々咬合爪２１が突設さ
れ、上下ゲート１８．１９が離反したときでも、当Ｓ亥
スペースＳ、、Ｓ、、Ｓ、にすき間が生じないようにな
っている。In this embodiment, as shown in FIG. 3, the engaging claws 21 are protruded from the end faces of the abutting portions R+, Rz, and Rs, so that even when the upper and lower gates 18 and 19 are separated, the current S No gaps are created in the spaces S,,S,,S,.
上記構成に係る本実施例において、プラスチック等の被
混線材は、供給口１５から混練室７，８内に供給され、
フィード部１１によって第４図左方に搬送されて混練部
１２において混練される。このとき、同図右側の供給口
１５から被混線材を供給する場合（２段練りの場合）に
は、ゲート装Ｗ６による開度調整により右側の混練室７
の充満度が変化され、材料温度を調節でき、また、左側
の混練室８の供給口１６からは、混練によって発生した
ガスを排気することにより、製品品質の低下を防止でき
る。In this embodiment with the above configuration, the material to be mixed such as plastic is supplied into the kneading chambers 7 and 8 from the supply port 15,
It is conveyed to the left in FIG. 4 by the feed section 11 and kneaded in the kneading section 12. At this time, when the wire material to be mixed is supplied from the supply port 15 on the right side of the figure (in the case of two-stage kneading), the opening degree is adjusted by the gate device W6 to the kneading chamber 7 on the right side.
The degree of filling of the kneading chamber 8 can be changed to adjust the temperature of the material, and the gas generated during kneading can be exhausted from the supply port 16 of the kneading chamber 8 on the left side, thereby preventing deterioration of product quality.
更に、その供給口１６から被混線材を添加して充満度調
整若しくはブレンド調整を行なうことができる。Furthermore, the mixing material can be added through the supply port 16 to adjust the filling degree or blend.
そして、本実施例においては、前記上下ゲート１８、１
９の衝合部分Ｒ，，Ｒ，，Ｒ，は咬合されていて先述の
ように常に閉塞状態を保つので、ダム部１４．１４相互
間及びダム部１４．１４とハウジング２内壁間の衝合ス
ペースｓ、、ｓ、、ｓｚにおいて、従来例のようなショ
ートパスが生じることがなく、ゲート１８．１９による
開度調整を思い通りに制御することができる。In this embodiment, the upper and lower gates 18, 1
Since the abutting portions R, , R, , R, of 9 are interlocked and always maintain a closed state as described above, there is no abutment between the dam portions 14.14 and between the dam portion 14.14 and the inner wall of the housing 2. In the spaces s, s, , sz, a short path unlike the conventional example does not occur, and the opening degree adjustment by the gates 18 and 19 can be controlled as desired.
以上、本発明の一実施例につき説明したが、本発明は、
これに限られるものではない。Although one embodiment of the present invention has been described above, the present invention includes
It is not limited to this.
例えば、第５図に示す如く、フィード部１１及び混練部
１２の各外周面とダム部１４外周面との接続部２２を傾
斜面とし、これに対応する各ゲート１８．１９の端面に
も夫々傾斜面２３を設けて、ダム部１４の外径を小さく
した場合でも樹脂流れが良好になるようにすることがで
きる。For example, as shown in FIG. 5, the connecting portions 22 between the outer circumferential surfaces of the feed section 11 and the kneading section 12 and the outer circumferential surface of the dam section 14 are formed as inclined surfaces, and the corresponding end surfaces of the respective gates 18 and 19 are also provided with slopes. By providing the inclined surface 23, resin flow can be improved even when the outer diameter of the dam portion 14 is made small.
更に、各ゲート１８．１９の衝合部分Ｒ＋、Ｒｇ、Ｒｓ
のうち、最もショートパスの発生し昌いところ、即ちダ
ム部１４．１４相互間の衝合部分Ｒ１にのみ咬合爪２１
を設けるだけで十分な場合があり、また、その部分Ｒ１
にも咬合爪２１を必要としない場合がある。Furthermore, the abutment portions R+, Rg, Rs of each gate 18.19
Of these, the occlusal claw 21 is applied only to the part where the shortest path occurs, that is, the abutting part R1 between the dam parts 14 and 14.
In some cases, it may be sufficient to provide the portion R1
In some cases, the occlusal claw 21 is not required.
即ち、このことは、樹脂の混線時における熱に対する鋭
敏性によって種々に状況が変わってくることに起因する
。That is, this is due to the fact that the situation varies depending on the sensitivity of the resin to heat at the time of crosstalk.
しかし、咬合爪２１を設けないとした場合には、上下ゲ
ート１８．１９の最接近時に上下の衝合部分Ｐ、。However, if the interlocking claws 21 are not provided, the upper and lower abutting portions P, when the upper and lower gates 18 and 19 are closest to each other.
Ｒ，、Ｒ３が接触するように構成することが好ましい。It is preferable that R, , R3 be in contact with each other.
即ち、そのように構成した場合、上下ゲート１８゜１９
が最接近時から離反したときにおける上下の衝合部分Ｒ
，，Ｒ１，Ｒ，間の間隙は、円弧状凹部２０とダム部１
４との間隙ｅよりも常に狭いこととなり、樹脂があまり
鋭敏でないときには、その衝合部分Ｒ，，Ｒ２、Ｒ８間
の間隙がゲート１８．１９による開度調整にほとんど影
響をおよぼさないからである。That is, when configured in this way, the upper and lower gates are 18°19
The upper and lower colliding parts R when the two move away from the closest approach
,, R1, R, the gap between the arcuate recess 20 and the dam part 1
4, and when the resin is not very sensitive, the gap between the abutting portions R, , R2, and R8 has little effect on the opening adjustment by the gate 18.19. It is.
尚、本発明は、第６図に示す如く、当該ゲート装置６を
ハウジング２の排出口１７例のみに設ける場合、若しく
は第７図に示す如く、ハウジング２の軸方向中途部及び
排出口１７側の双方に設ける場合にも、適用可能である
ことは勿論である。The present invention is applicable when the gate device 6 is provided only at the 17 discharge ports of the housing 2, as shown in FIG. Needless to say, it is also applicable to the case where it is provided on both sides.
（発明の効果）
以上説明したように、請求項（１）記載の発明によれば
、ショートパスを防止できることによりゲート装置６に
よる被混線材の混練度調整も思い通りに制御し得、安定
した品質の材料の供給が可能となる。(Effects of the Invention) As explained above, according to the invention set forth in claim (1), since short passes can be prevented, the degree of kneading of the wire material to be mixed by the gate device 6 can be controlled as desired, and stable quality can be achieved. material can be supplied.
また、請求項（２）記載の発明によれば、咬合爪２１の
咬合により上下ゲート１８．１９離反時においても衝合
スペースＳ、、Ｓ、、Ｓ、が閉塞されたままとなるので
、特に熱に対して鋭敏な樹脂であっても前記効果を維持
し得、ゲート装置６の汎用性がより拡大される。In addition, according to the invention described in claim (2), the abutting spaces S, , S, , S remain closed even when the upper and lower gates 18 and 19 are separated due to the occlusion of the occlusal claws 21. Even if the resin is sensitive to heat, the above effect can be maintained, and the versatility of the gate device 6 is further expanded.
第１図乃至第４図は本発明の一実施例を示し、第１図は
２軸混練機の縦断面図、第２図はロータの要部側面図、
第３図は衝合部分の一部縦断面図、第４図は２軸混練機
の全体側面図、第５図はダム部付近の形状の他の変形例
を示す要部断面図、第６図及び第７図は本発明が適用さ
れ得る他の２軸混練機の全体側面図、第８図及び第９図
は従来例を示し、第８図は２軸混練機の縦断面図、第９
図はロータの要部側面図である。
１・−・２軸混練機、２・・−ハウジング、３，４・−
・ロータ、１１− フィード部、１２・−混練部、１４
−ダム部、１８．１９−ゲート、２１・・・咬合爪、Ｓ
ｌ、Ｓｌ、Ｓ３・・・衝合スペース、Ｒ，、Ｒ，、Ｒ，
−・衝合部分。1 to 4 show one embodiment of the present invention, FIG. 1 is a longitudinal sectional view of a two-shaft kneader, FIG. 2 is a side view of the main part of the rotor,
Fig. 3 is a partial vertical cross-sectional view of the abutment part, Fig. 4 is an overall side view of the two-shaft kneader, Fig. 5 is a cross-sectional view of the main part showing another modification of the shape near the dam part, and Fig. 6 7 and 7 are overall side views of other twin-screw kneading machines to which the present invention can be applied, FIGS. 8 and 9 show conventional examples, and FIG. 8 is a vertical sectional view of the twin-screw kneading machines. 9
The figure is a side view of the main parts of the rotor. 1.--Two-shaft kneader, 2.--Housing, 3, 4.-
・Rotor, 11- Feed section, 12--Kneading section, 14
-Dam part, 18.19-Gate, 21... Articulating claw, S
l, Sl, S3... Collision space, R,, R,, R,
-・Abutment part.
Claims (2)
のロータ（３）（４）が回転自在に挿通され、該ロータ
（３）（４）の周面には、被混線材のフィード部（１１
）及び混練部（１２）がダム部（１４）を介して軸方向
に分かれて形成されており、上下一対のゲート（１８）
（１９）が前記ダム部（１４）に対して互いに接近離反
自在に設けられて被混線材の開度を調整自在とした２軸
混練機のゲート装置において、前記ダム部（１４）の外
径をフィード部（１１）及び混練機（１２）の外径より
も小さくしてダム部（１４）（１４）の間、及びハウジ
ング（２）とその各ダム部（１４）（１４）との間に上
下ゲート（１８）（１９）の衝合スペース（Ｓ＿１）（
Ｓ＿２）（Ｓ＿３）を設け、該上下ゲート（１８）（１
９）には、その衝合スペース（Ｓ＿１）（Ｓ＿２）（Ｓ
＿３）を閉塞する衝合部分（Ｒ＿１）（Ｒ＿２）（Ｒ＿
３）が形成されていることを特徴とする２軸混練機のゲ
ート装置。(1) A pair of rotors (3) and (4) are rotatably inserted into the kneading chamber formed in the housing (2), and the peripheral surfaces of the rotors (3 and 4) are covered with wires to be mixed. Feed section (11
) and a kneading section (12) are formed separately in the axial direction via a dam section (14), and a pair of upper and lower gates (18)
(19) are provided so as to be able to move toward and away from each other with respect to the dam part (14), so that the opening degree of the mixed wire material can be freely adjusted. is smaller than the outer diameter of the feed section (11) and the kneader (12), and between the dam sections (14) (14), and between the housing (2) and each of its dam sections (14) (14). The abutment space (S_1) of the upper and lower gates (18) and (19) is
S_2) (S_3) are provided, and the upper and lower gates (18) (1
9) has its collision spaces (S_1) (S_2) (S
(R_1) (R_2) (R_
3) A gate device for a twin-screw kneader, characterized in that:
＿１）（Ｒ＿２）（Ｒ＿３）のうち、少なくともダム部
（１４）（１４）間にある上下衝合部分（Ｒ＿１）の各
端面には、ゲート（１８）（１９）離反時においても咬
合しあう咬合爪（２１）（２１）が夫々突設されている
ことを特徴とする請求項（１）記載の２軸混練機のゲー
ト装置。(2) The abutting portion (R) of the upper and lower gates (18) and (19)
_1) Of (R_2) and (R_3), at least each end face of the upper and lower abutting portions (R_1) between the dam parts (14) (14) has the gates (18) and (19) interlocked with each other even when separated. A gate device for a two-shaft kneading machine according to claim 1, characterized in that the engaging claws (21) (21) are respectively provided in a protruding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134499A JPH0643060B2 (en) | 1990-05-24 | 1990-05-24 | Gate device for twin-screw kneader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134499A JPH0643060B2 (en) | 1990-05-24 | 1990-05-24 | Gate device for twin-screw kneader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428505A true JPH0428505A (en) | 1992-01-31 |
| JPH0643060B2 JPH0643060B2 (en) | 1994-06-08 |
Family
ID=15129753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2134499A Expired - Lifetime JPH0643060B2 (en) | 1990-05-24 | 1990-05-24 | Gate device for twin-screw kneader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0643060B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572425U (en) * | 1992-03-10 | 1993-10-05 | 株式会社日本製鋼所 | Kneading degree adjusting device for extruder |
| WO1995028224A1 (en) * | 1994-04-18 | 1995-10-26 | Kabushiki Kaisha Kobeseikosho | Kneading machine |
| WO2007007488A1 (en) * | 2005-07-11 | 2007-01-18 | Kabushiki Kaisha Kobe Seiko Sho | Meshing-type two-axis extruder and kneading degree adjusting device |
| WO2009096450A1 (en) * | 2008-01-30 | 2009-08-06 | Kabushiki Kaisha Kobe Seiko Sho | Kneading degree adjusting apparatus, extruder, and continuous kneader |
| US7635217B2 (en) * | 2008-01-03 | 2009-12-22 | Wenger Manufacturing, Inc. | Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly |
| US10532491B2 (en) * | 2016-09-30 | 2020-01-14 | Toyota Jidosha Kabushiki Kaisha | Twin-screw extrusion kneader with movable portions to control viscosity of electrode paste and manufacturing method for electrode paste therewith |
-
1990
- 1990-05-24 JP JP2134499A patent/JPH0643060B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572425U (en) * | 1992-03-10 | 1993-10-05 | 株式会社日本製鋼所 | Kneading degree adjusting device for extruder |
| WO1995028224A1 (en) * | 1994-04-18 | 1995-10-26 | Kabushiki Kaisha Kobeseikosho | Kneading machine |
| US5672005A (en) * | 1994-04-18 | 1997-09-30 | Kabushiki Kaisha Kobeseikosho | Kneader |
| CN1045064C (en) * | 1994-04-18 | 1999-09-15 | 株式会社神户制钢所 | Kneading machine |
| WO2007007488A1 (en) * | 2005-07-11 | 2007-01-18 | Kabushiki Kaisha Kobe Seiko Sho | Meshing-type two-axis extruder and kneading degree adjusting device |
| US7677787B2 (en) | 2005-07-11 | 2010-03-16 | Kobe Steel, Ltd. | Intermeshing type twin screw extruder and mixing degree adjusting device |
| US7635217B2 (en) * | 2008-01-03 | 2009-12-22 | Wenger Manufacturing, Inc. | Extruder having variable mid-barrel restriction and adjacent high intensity mixing assembly |
| JP2009178918A (en) * | 2008-01-30 | 2009-08-13 | Kobe Steel Ltd | Kneading degree adjusting apparatus, extruder, and continuous kneader |
| WO2009096450A1 (en) * | 2008-01-30 | 2009-08-06 | Kabushiki Kaisha Kobe Seiko Sho | Kneading degree adjusting apparatus, extruder, and continuous kneader |
| JP4555351B2 (en) * | 2008-01-30 | 2010-09-29 | 株式会社神戸製鋼所 | Kneading degree adjusting device, extruder, and continuous kneader |
| CN101932415A (en) * | 2008-01-30 | 2010-12-29 | 株式会社神户制钢所 | Kneading degree adjusting apparatus, extruder, and continuous kneader |
| US8118475B2 (en) | 2008-01-30 | 2012-02-21 | Kobe Steel, Ltd. | Kneading degree adjusting apparatus, extruder and continuous kneader |
| EP2239122A4 (en) * | 2008-01-30 | 2017-10-11 | Kabushiki Kaisha Kobe Seiko Sho | Kneading degree adjusting apparatus, extruder, and continuous kneader |
| US10532491B2 (en) * | 2016-09-30 | 2020-01-14 | Toyota Jidosha Kabushiki Kaisha | Twin-screw extrusion kneader with movable portions to control viscosity of electrode paste and manufacturing method for electrode paste therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0643060B2 (en) | 1994-06-08 |
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