JPS63147622A - Apparatus for coating continuous filament with resin containing dispersed solid powder - Google Patents
Apparatus for coating continuous filament with resin containing dispersed solid powderInfo
- Publication number
- JPS63147622A JPS63147622A JP61294754A JP29475486A JPS63147622A JP S63147622 A JPS63147622 A JP S63147622A JP 61294754 A JP61294754 A JP 61294754A JP 29475486 A JP29475486 A JP 29475486A JP S63147622 A JPS63147622 A JP S63147622A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- extruder
- crosshead
- fibers
- continuous
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 38
- 239000011347 resin Substances 0.000 title claims abstract description 38
- 239000007787 solid Substances 0.000 title claims description 19
- 239000000843 powder Substances 0.000 title claims description 8
- 239000011248 coating agent Substances 0.000 title abstract description 15
- 238000000576 coating method Methods 0.000 title abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 239000011888 foil Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 abstract 2
- 238000000465 moulding Methods 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 7
- 210000002445 nipple Anatomy 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000012778 molding material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009827 uniform distribution Methods 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fillers or of fibrous materials, e.g. short-fibre reinforcements
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
- B29C48/2888—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules in thread form or in strip form, e.g. rubber strips
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の分野］
本発明は、中心部の連続的な繊維を、固体粉末、箔およ
び／または短繊維を分散して含む樹脂により被覆する装
置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for coating a continuous fiber core with a resin containing dispersed solid powders, foils and/or short fibers.
このような装置で製造される製品の例としては、特願昭
６０−１８３８１４号゛に記載された電磁波遮へい性を
有する導電性成形品があり、その成形品は、中央心部に
導電性の連続的なｔｊ４Ｋが存在し、その周りを導電性
の固体粉末、箔および／または短繊維を均一に分散して
含む熱可塑性合成樹脂が被覆して構成されている。An example of a product manufactured using such a device is a conductive molded product with electromagnetic shielding properties described in Japanese Patent Application No. 183814/1983, which has a conductive molded product in the center. A continuous tj4K is present, and a thermoplastic synthetic resin containing conductive solid powder, foil, and/or short fibers uniformly dispersed therein is coated around the tj4K.
［従来技術］
このような成形品を作る装置として、周知の電線被覆装
置が考えられるが、通常の電線被覆装置の場合、短かい
簡単なスクリュー押出機で溶融した樹脂が上部から、ク
ロスヘッドに供給され、クロスヘッド内では、樹脂がニ
ップルとダイスの間隙を流動しながら水平に走る電線上
に同心状に押出成形されるようになっている。この電線
被覆装置は一台当りで一本の被覆しかできず、しかも本
発明が問題にしている製品は樹脂に短繊維などの固体を
分散して含み、電線被覆のように高速で被覆を行なうと
固体などが剪断されてしまい、また流動粘度が高いので
低速でしか被覆を行なうことができず、従って生産性が
低くなる上、電線が水平に走行するので電線の走行方向
の装置長さが大きくなる欠点があった。ざらに、樹脂が
短かい簡単な押出機で上方から供給されるので、固体と
樹脂を適切に混合することができず、製品の性能は不十
分であった。[Prior Art] A well-known wire coating device is considered as a device for making such a molded product, but in the case of a normal wire coating device, molten resin is passed from the top into a crosshead using a short and simple screw extruder. In the crosshead, the resin flows through the gap between the nipple and the die and is concentrically extruded onto a horizontally running wire. This wire coating device can only coat one wire per unit, and the product in question in this invention contains solids such as short fibers dispersed in resin, and coats at high speed like wire coating. Also, since the flow viscosity is high, coating can only be done at low speeds, which reduces productivity.In addition, since the wire runs horizontally, the length of the equipment in the wire running direction is shortened. There was a downside to getting bigger. Additionally, because the resin was fed from above in a short, simple extruder, the solids and resin could not be properly mixed, resulting in poor product performance.
［発明の目的］
従って、本発明の目的は、電線被覆装置に比較して生産
性が大きく、被覆部装置の長さが比較的短かく、ざらに
短繊維などの固体及び他の添加物と樹脂の混合が適切に
行なえるような冒頭に述べた種類の装置を提供すること
である。[Objective of the Invention] Therefore, the object of the present invention is to provide high productivity compared to electric wire coating equipment, a relatively short length of the covering equipment, and a wire coating device that can be easily coated with solids such as short fibers and other additives. The object of the present invention is to provide a device of the type mentioned at the outset, in which mixing of resins can be carried out appropriately.
［発明の構成］
上記の目的を達成するには、本発明により、押出機を樹
脂の流れ方向が水平に延びるように配置すると共に、複
数のクロスヘッドをその連続的な繊維の流れ方向が押出
機の樹脂の流れ方向に対して垂直にまたは斜めに交差す
るように配置すれば良い。[Structure of the Invention] In order to achieve the above object, according to the present invention, an extruder is arranged so that the resin flow direction extends horizontally, and a plurality of crossheads are arranged so that the continuous fiber flow direction extends horizontally. They may be arranged perpendicularly or obliquely to the resin flow direction of the machine.
［実 施 例］
以下、本発明の実施例について図面により詳細に説明す
る。[Example] Hereinafter, examples of the present invention will be described in detail with reference to the drawings.
第１図は、本発明による押出機とクロスヘッドの組合わ
せを有する装置の流れ系統を示す。FIG. 1 shows the flow system of an apparatus having an extruder and crosshead combination according to the invention.
本発明により、押出機１が、固体粉末、箔または短かい
繊維を分散して含む樹脂２の流れ方向が水平に延びるよ
うに配置されていると共に、クロスヘッド３は、被覆す
べき中心部の連続的な繊維４の流れ方向が押出機１の樹
脂の流れ方向に対して走行方向に斜めに傾斜して交差す
るよう”に配置されている。押出機１は、樹脂と固体な
どの投入用ホッパー６と、ホッパー６より下流にヒータ
７とを有する。８は被覆された成形品の冷却部、９は連
続する成形品の切断部を示す。According to the invention, the extruder 1 is arranged such that the flow direction of the resin 2 containing dispersed solid powder, foil or short fibers extends horizontally, and the crosshead 3 is arranged so that the resin 2 containing dispersed solid powder, foil or short fibers runs horizontally, and the crosshead 3 The continuous fibers 4 are arranged so that the flow direction of the resin in the extruder 1 is obliquely inclined and crosses the running direction.The extruder 1 is used for charging resin and solids. It has a hopper 6 and a heater 7 downstream from the hopper 6. Reference numeral 8 indicates a cooling section for the coated molded product, and 9 indicates a cutting section for the continuous molded product.
装置の作動を説明すると、樹脂と、その中に分散される
固体粉末、箔および／または短繊維（以下分散されるも
のを代表して固体と呼ぶ）を−緒にホッパー６より投入
すると、押出機１のスクリューにより押し出される間に
ヒータ７により加熱溶融されてそのノズルから、同時に
クロスヘッド３の内部を上方から下方へ走行している被
覆すべき連続的な繊維４の周りへ流動しながら導かれ、
連続的な繊維４の上に被覆される。それから、冷ム０部
８で冷却されて、引取部９で成形品を任意の長さくたと
えば２〜２０ｍｍ＞に切断してペレットとして貯蔵する
ことができる。被覆速度は、成形品が樹脂に固体を分散
して含むので、固体の剪断を防ぐために電線被覆の速度
に比較して１０Ｃｍ〜１０瓦秒の比較的低速が好適であ
る。従って、冷却部８の長さもそれだけ短かくてすむ。To explain the operation of the device, when the resin and the solid powder, foil, and/or short fibers dispersed therein (hereinafter, the dispersed materials are referred to as solids) are fed together from the hopper 6, the extrusion begins. While being extruded by the screw of the machine 1, the fibers are heated and melted by the heater 7, and are introduced from the nozzle while flowing around the continuous fibers 4 to be coated, which are simultaneously running inside the crosshead 3 from above to below. he,
It is coated onto continuous fibers 4. Then, the molded product is cooled in a cold comb section 8, cut into arbitrary lengths, for example, 2 to 20 mm, and stored as pellets in a take-off section 9. Since the molded article contains a solid dispersed in the resin, a relatively low coating speed of 10 cm to 10 cm seconds is preferable compared to the speed of coating the electric wire in order to prevent shearing of the solid. Therefore, the length of the cooling section 8 can be reduced accordingly.
次に、本発明によるクロスヘッド３、該クロスヘッド３
と押出機１の間の接続部１′の構造の詳細を第２図と第
３図により３１明する。第２図において、接続部１′は
内部に平たい押出孔１０を有し、外部に押出機側に取り
つけられる円形フランジ１１と、クロスヘッドケーシン
グ１３が取りつけられる長方形フランジ１２とを有する
。図示していないが、押出機から押出された樹脂の流路
はフランジ１１に達するより前で円形断面から隅を丸く
した長方形断面へと少しずつ変形されている。クロスヘ
ッドケーシング１３は、接続部１′の孔１０と連続する
テーパー状ノズル１４と゛、ノズル１４と斜めに樹脂の
流れ方向に向かって傾斜する長方形断面の貫通孔１５（
第３図を参照）を有する。クロスヘッドケーシング１３
の貫通孔１５には、上方から、ニップルホルダ１６が嵌
入されてフランジにより取りつけられており、その下端
面がちょうど押出機のノズル１４の孔の上縁と合致する
ような長さを有する。ニップルホルダ１６には被覆すべ
き連続繊維のための６個のニップル１７が挿入固定され
、その先細になっている下端が下方へ突出している。ノ
ズルホルダ１６の上には、ざらに連続的な繊維４のため
のガイド孔１８を有する板１９が取りつけられている。Next, a crosshead 3 according to the present invention, the crosshead 3
The details of the construction of the connection 1' between the extruder 1 and the extruder 1 will be explained in detail with reference to FIGS. 2 and 3. In FIG. 2, the connecting part 1' has a flat extrusion hole 10 inside and a circular flange 11 to be attached to the extruder side and a rectangular flange 12 to which a crosshead casing 13 is attached to the outside. Although not shown, the flow path of the resin extruded from the extruder is gradually deformed from a circular cross section to a rectangular cross section with rounded corners before reaching the flange 11. The crosshead casing 13 has a tapered nozzle 14 that is continuous with the hole 10 of the connecting portion 1', and a through hole 15 that has a rectangular cross section and is inclined obliquely toward the flow direction of the resin.
(see Figure 3). Crosshead casing 13
A nipple holder 16 is fitted into the through hole 15 from above and attached by a flange, and has a length such that its lower end surface exactly matches the upper edge of the hole of the nozzle 14 of the extruder. Six nipples 17 for continuous fibers to be coated are inserted and fixed into the nipple holder 16, and their tapered lower ends protrude downward. Mounted above the nozzle holder 16 is a plate 19 with guide holes 18 for the roughly continuous fibers 4 .
一方、クロスヘッドケーシング１３の貫通孔１５の下方
から、ダイ部材２０がフランジにより嵌入固定されてお
り、ダイ部材２０の長さはその端面がちょうど押出機の
ノズル１４の下縁と一致するような長さである。従って
、ノズルホルダ１６の下端面とダイ部材２０の上端面の
間に横に連続する共通の空間２３が形成されている。ダ
イ部材２０は、６本のニップル１７にそれぞれ対応する
６個のテーパ一孔状ダイ２１を有し、各ダイ２１の下端
に出口孔２２を有する。各ニップル１７とこれに対応す
る各ダイ２１がそれぞれクロスヘッド３を構成する。On the other hand, a die member 20 is fitted and fixed by a flange from below the through hole 15 of the crosshead casing 13, and the length of the die member 20 is such that its end surface exactly coincides with the lower edge of the nozzle 14 of the extruder. It is the length. Therefore, a common space 23 that continues laterally is formed between the lower end surface of the nozzle holder 16 and the upper end surface of the die member 20. The die member 20 has six tapered single-hole dies 21 corresponding to the six nipples 17, respectively, and has an outlet hole 22 at the lower end of each die 21. Each nipple 17 and each corresponding die 21 constitute a crosshead 3.
なお、この実施例では、６個のクロスヘッドを用いたけ
れども、もちろん複数のどんな数のクロスヘッドでも良
く、好ましくは４〜８個のクロスヘッドを用いることが
できる。Although six crossheads are used in this embodiment, any number of crossheads may be used, preferably four to eight crossheads.
次に、第４図に、本発明による押出機とクロスヘッドを
有する装置の、第１図と異なる流れ系統を示す。１階に
は、本発明による押出機１とクロスヘッド３が、および
その下流に冷却部８とペレタイザ２５が設けられている
。中二階には、樹脂Ａ（ポリスチレン）の供給装置２６
と、樹脂Ｂ（ポリフェニレンオキサイド士添加剤）の供
給装＠２７が設けられ、これらの供給装置はそれぞれ押
出機１のホッパー２８に連結されている。ざらに中二階
には、樹脂に分散される短繊維のための供給装置２９が
設けられていて、押出機１のホッパー２８の下流の別の
ホッパー３０に連結されている。中二階には、ざらに被
覆すべき中心部の連続繊維４の送出し装置３１が設けら
れてお゛す、この送出し装置から出る連続繊維４がクロ
スヘッド３に導かれ、そこで短繊維を分散して含む溶融
した樹脂により被覆されて、さらに冷却部８で冷却され
てからペレタイザ２５によりペレットに切断される。こ
の装置では、押出機内部で短繊維が樹脂と混合されなが
ら流れる間に１／３〜１／４に切断されるのを防ぐため
に、短繊維を押出機の途中で供給するようにしている。Next, FIG. 4 shows a different flow system from FIG. 1 of an apparatus having an extruder and a crosshead according to the present invention. On the first floor, an extruder 1 and a crosshead 3 according to the invention, and downstream thereof a cooling section 8 and a pelletizer 25 are installed. On the mezzanine floor, there is a supply device 26 for resin A (polystyrene).
and a supply device @ 27 for resin B (polyphenylene oxide additive) are provided, and these supply devices are connected to the hopper 28 of the extruder 1, respectively. A feeding device 29 for short fibers to be dispersed in the resin is provided in the mezzanine floor and is connected to a further hopper 30 downstream of the hopper 28 of the extruder 1 . The mezzanine floor is provided with a delivery device 31 for the continuous fibers 4 in the center to be roughly coated.The continuous fibers 4 coming out of this delivery device are guided to the crosshead 3, where they are converted into short fibers. It is coated with a dispersed molten resin, further cooled in a cooling section 8, and then cut into pellets by a pelletizer 25. In this device, the short fibers are fed midway through the extruder in order to prevent the short fibers from being cut into 1/3 to 1/4 while flowing while being mixed with resin inside the extruder.
これによって、押出し中の短繊維の切断ｔま１／２程度
の切断ですむ。As a result, cutting of short fibers during extrusion can be cut by about 1/2 t.
本発明の装置に適用できる対象製品としては、特願昭６
０−１８３８１４号に記載された導電性成形材料の他に
、中心部としてカーボン繊維、ガラス繊維、アラミド繊
維を用い、その周りの樹脂に分散される固体として、中
心部に用いた繊維の短かいもの、炭酸カルシウムなどの
充填材を用いた繊維強化材料がある。また、本発明の装
置を電線被覆にも適用することができる。Target products to which the device of the present invention can be applied are:
In addition to the conductive molding materials described in No. 0-183814, carbon fibers, glass fibers, and aramid fibers are used as the core, and short fibers used in the core are used as solids that are dispersed in the surrounding resin. There are fiber-reinforced materials using fillers such as carbonate and calcium carbonate. Furthermore, the device of the present invention can also be applied to wire coating.
なお、ペレットを作る方法には、切断した長い繊維と樹
脂を捏和してペレットを作る従来方法もあるが、捏和す
る際に長繊維が切断される欠点があるのに対し、本発明
の装置で作った連続する成形品をペレットに切断すれば
、中心部の連続繊維の長さが常に任意の長さに切断され
たペレット長と同じであり、成形用材料として高い価値
を有する。There is also a conventional method for making pellets by kneading cut long fibers and resin, but this method has the disadvantage that the long fibers are cut during kneading, whereas the method of the present invention When a continuous molded product made by the device is cut into pellets, the length of the continuous fibers in the center is always the same as the length of the pellet cut to an arbitrary length, and it has high value as a molding material.
［本発明の効果］
本発明の装置では、押出機を固体粉末、箔および／また
は短繊維を含む樹脂の流れ方向が水平に延びるように配
置したので、電線被覆装置に比較して押出機の長さを長
くすることができ、従って、従来複数工程を要した樹脂
と固体などの混合を一工程で適切に行なうことができ、
固体の分散が均一になる。同時に、複数のクロスヘッド
を、連続的な繊維の流れ方向が押出機の樹脂の流れ方向
に対して垂直にまたは斜めに交差するように配置したの
で、電線被覆装置に比較して、中心部の連続的な繊維の
案内のために要する装置の軸方向長さがきわめて短かく
なって装置全体の長さが短縮されると共に、複数個のク
ロスヘッドを一体化して用いているので、押゛出中樹脂
に分散して含まれる固体の剪断を防ぐために従来の電線
被覆装置に比較して低速であるにもかかわらず、生産性
が増大した。また、従来の繊維含有ペレットに比べて、
本発明で作られるペレットの芯部の繊維長は１０〜１０
０倍長くすることができ、成形用材料として好都合であ
る。[Effects of the present invention] In the apparatus of the present invention, the extruder is arranged so that the flow direction of the resin containing solid powder, foil and/or short fibers extends horizontally, so the extruder is The length can be increased, and therefore, mixing of resin and solids, which conventionally required multiple steps, can be done properly in one step.
Uniform distribution of solids. At the same time, multiple crossheads were arranged so that the flow direction of the continuous fibers crossed perpendicularly or diagonally to the flow direction of the resin in the extruder. The axial length of the device required for continuous fiber guidance is extremely short, reducing the overall length of the device, and since multiple crossheads are integrated, the extrusion Productivity was increased despite the lower speed compared to conventional wire coating equipment to prevent shearing of the solids dispersed in the resin. In addition, compared to conventional fiber-containing pellets,
The fiber length of the core of the pellets produced by the present invention is 10 to 10
It can be made 0 times longer and is convenient as a molding material.
第１図は本発明の押出機とクロスヘッドの組合わせを含
む装置の流れ系統、図、第２図は本発明の押出機とクロ
スヘッドの縦断面図、第３図は第２図の線■−■に沿っ
て切断した部分横断面図、第４図は本発明の押出はとク
ロスヘッドの組合わせを含む装置の、第１図と異なる流
れ系統図である。
１ ・・・押出機
１′・・・接続部
３ ・・・クロスヘッド
４ ・・・中心部の連続的な繊維
第１ｆｆｌ
第２図Fig. 1 is a diagram showing a flow system of an apparatus including a combination of an extruder and crosshead of the present invention, Fig. 2 is a longitudinal sectional view of the extruder and crosshead of the present invention, and Fig. 3 is a line taken along the line of Fig. 2. FIG. 4, which is a partial cross-sectional view taken along the line 1--2, is a flow diagram different from that shown in FIG. 1...Extruder 1'...Connection part 3...Crosshead 4...Continuous fiber 1ffl in the center Fig. 2
Claims (1)
は短繊維を分散して含む樹脂により被覆する装置であつ
て、樹脂を押し出すための押出機と、この押出機からの
樹脂が連続的な繊維の上に同心状に流れるように押出機
に接続されたクロスヘッドとを備えた装置において、押
出機を樹脂の流れ方向が水平に延びるように配置すると
共に複数のクロスヘッドをその連続的な繊維の流れ方向
が押出機の樹脂の流れ方向に対して垂直にまたは斜めに
交差するように配置したことを特徴とする装置。A device that coats a continuous fiber in the center with a resin containing dispersed solid powder, foil, and/or short fibers, and includes an extruder for extruding the resin, and a continuous resin from the extruder. In an apparatus equipped with a crosshead connected to an extruder so that the resin flows concentrically over the fibers, the extruder is arranged so that the flow direction of the resin extends horizontally, and a plurality of crossheads are connected in a continuous manner. An apparatus characterized in that the flow direction of the fibers is arranged perpendicularly or obliquely to the flow direction of the resin in the extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61294754A JPH0739125B2 (en) | 1986-12-12 | 1986-12-12 | Equipment for coating continuous fibers with resin containing solid powder dispersed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61294754A JPH0739125B2 (en) | 1986-12-12 | 1986-12-12 | Equipment for coating continuous fibers with resin containing solid powder dispersed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63147622A true JPS63147622A (en) | 1988-06-20 |
| JPH0739125B2 JPH0739125B2 (en) | 1995-05-01 |
Family
ID=17811869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61294754A Expired - Lifetime JPH0739125B2 (en) | 1986-12-12 | 1986-12-12 | Equipment for coating continuous fibers with resin containing solid powder dispersed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0739125B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460883A (en) * | 1992-03-19 | 1995-10-24 | Minnesota Mining And Manufacturing Company | Composite abrasive filaments, methods of making same, articles incorporating same, and methods of using said articles |
| US5491025A (en) * | 1992-03-19 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Abrasive filaments comprising abrasive-filled thermoplastic elastomer |
| US5529652A (en) * | 1987-07-11 | 1996-06-25 | Kabushiki Kaisha Kobe Seiko Sho | Method of manufacturing continuous fiber-reinforced thermoplastic prepregs |
| US6431847B1 (en) * | 1999-04-06 | 2002-08-13 | Woodshed Technologies, Inc. | Apparatus for compounding resin and fiber |
| US6875385B2 (en) | 1999-04-06 | 2005-04-05 | Woodshed Technologies, Inc. | Method of compounding resin and fiber |
| US7169340B2 (en) | 1999-04-06 | 2007-01-30 | Hawley Ronald C | Resin and fiber compounding process for molding operations |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832154A (en) * | 1971-08-28 | 1973-04-27 | ||
| JPS4892464A (en) * | 1972-03-11 | 1973-11-30 | ||
| JPS4977961A (en) * | 1972-11-30 | 1974-07-26 | ||
| JPS5796408A (en) * | 1980-12-09 | 1982-06-15 | Hitachi Cable | Extrusion crosshead for covering coating material on core wire |
-
1986
- 1986-12-12 JP JP61294754A patent/JPH0739125B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832154A (en) * | 1971-08-28 | 1973-04-27 | ||
| JPS4892464A (en) * | 1972-03-11 | 1973-11-30 | ||
| JPS4977961A (en) * | 1972-11-30 | 1974-07-26 | ||
| JPS5796408A (en) * | 1980-12-09 | 1982-06-15 | Hitachi Cable | Extrusion crosshead for covering coating material on core wire |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5529652A (en) * | 1987-07-11 | 1996-06-25 | Kabushiki Kaisha Kobe Seiko Sho | Method of manufacturing continuous fiber-reinforced thermoplastic prepregs |
| US5460883A (en) * | 1992-03-19 | 1995-10-24 | Minnesota Mining And Manufacturing Company | Composite abrasive filaments, methods of making same, articles incorporating same, and methods of using said articles |
| US5491025A (en) * | 1992-03-19 | 1996-02-13 | Minnesota Mining And Manufacturing Company | Abrasive filaments comprising abrasive-filled thermoplastic elastomer |
| US5518794A (en) * | 1992-03-19 | 1996-05-21 | Minnesota Mining And Manufacturing Company | Abrasive article incorporating composite abrasive filament |
| US5571296A (en) * | 1992-03-19 | 1996-11-05 | Minnesota Mining And Manufacturing Company | Method of making composite abrasive filaments |
| US5737794A (en) * | 1992-03-19 | 1998-04-14 | Minnesota Mining And Manufacturing Company | Composite abrasive filaments, methods of making same, articles incorporating same, and methods of using said articles |
| US5837179A (en) * | 1992-03-19 | 1998-11-17 | Minnesota Mining And Manufacturing Copmany | Method of making abrasive filaments comprising abrasive-filled thermoplastic elastomer |
| US6431847B1 (en) * | 1999-04-06 | 2002-08-13 | Woodshed Technologies, Inc. | Apparatus for compounding resin and fiber |
| US6875385B2 (en) | 1999-04-06 | 2005-04-05 | Woodshed Technologies, Inc. | Method of compounding resin and fiber |
| US7169340B2 (en) | 1999-04-06 | 2007-01-30 | Hawley Ronald C | Resin and fiber compounding process for molding operations |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0739125B2 (en) | 1995-05-01 |
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