JPH01200922A - Preparation of trim material for vehicle - Google Patents
Preparation of trim material for vehicleInfo
- Publication number
- JPH01200922A JPH01200922A JP63026309A JP2630988A JPH01200922A JP H01200922 A JPH01200922 A JP H01200922A JP 63026309 A JP63026309 A JP 63026309A JP 2630988 A JP2630988 A JP 2630988A JP H01200922 A JPH01200922 A JP H01200922A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- base raw
- charged
- extruder
- base material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 3
- 239000012766 organic filler Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 25
- 238000001125 extrusion Methods 0.000 abstract description 12
- 238000000465 moulding Methods 0.000 abstract description 10
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 6
- -1 polypropylene Polymers 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000003610 charcoal Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 8
- 238000004898 kneading Methods 0.000 description 7
- 238000005453 pelletization Methods 0.000 description 7
- 239000008188 pellet Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000002023 wood 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
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007803 itching Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 239000002699 waste material Substances 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
- B29C43/184—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould shaped by the compression of the material during moulding
-
- 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
- B29C31/044—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds with moving heads for distributing liquid or viscous material into the moulds
-
- 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
-
- 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
- B29C48/405—Intermeshing co-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
- B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
-
- 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
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、自動車等のドアトリム、クォータトリム、
パッケージトレイといった内装材を製造するための方法
に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention is applicable to door trims, quarter trims, etc. of automobiles, etc.
The present invention relates to a method for manufacturing interior materials such as package trays.
（従来の技術）
上記した内装材は、フィラー入り樹脂よりなる基材の表
面に表皮材を接着してなるものが一般的である。従来よ
り、内装材は次のような工程を経て製造されてきた。(Prior Art) The above-mentioned interior materials are generally made by adhering a skin material to the surface of a base material made of a filler-containing resin. Traditionally, interior materials have been manufactured through the following process.
（１）撹拌工程（第５図（イ）参照）
基材原料としては、熱可塑性樹脂（ポリオレフィン系樹
脂あるいはＥＶＡ（エチレンビニル共重合物）樹脂）と
、木粉、炭酸カルシウム（以下、タンカルという。）、
タルク等のフィラーとが使用されてきた。この工程は、
これらを高速撹拌機２０に投入して造粒する過程である
。(1) Stirring process (see Figure 5 (a)) The base materials are thermoplastic resin (polyolefin resin or EVA (ethylene vinyl copolymer) resin), wood flour, and calcium carbonate (hereinafter referred to as tankal). ),
Fillers such as talc have been used. This process is
This is the process of putting these into a high-speed stirrer 20 and granulating them.
次工程である混線押出し■稈に先立って撹拌しておくの
は、フィラー入り樹脂の成形では、フィラーの分散性が
成形の１要なポイントとなるからである。The reason for stirring prior to the next step, cross-wire extrusion (2), is that when molding resin containing fillers, the dispersibility of the filler is an important point in molding.
（２）混練押出し工程（同図（イ）参照）次いで、原料
は混練押出し機２１へ投入される。(2) Kneading and extruding step (see (a) in the figure) Next, the raw materials are fed into the kneading and extruding machine 21.
ここで、原料は約２００℃に加熱されスクリユー軸２２
にて溶融状態で撹拌されながら押出される。Here, the raw material is heated to about 200°C and the screw shaft 22
It is extruded while being stirred in a molten state.
（３）ペレット化工程
混練押出し工程を紅だ原料をペレット化２３する工程で
ある。(3) Pelletization process The kneading and extrusion process is a process of pelletizing the raw material.
（４）スタンピング成形工程
この工程で使用されるスタンピング成形機は押出し機２
４を併設しており、上記のベレットはまずこの押出し機
２４に投入される。押出し機はその内部に単軸のスクリ
ューコンベア２５を内蔵しており、ベレットはここで約
２００〜２３０℃程度に加熱されて溶融混練されながら
成形型２６．２７へ押出され、ここで表皮材２８と共に
冷間成形され、所望形状の製品となる。(4) Stamping molding process The stamping molding machine used in this process is extruder 2.
4 is also installed, and the above-mentioned pellets are first fed into this extruder 24. The extruder has a single-screw conveyor 25 built therein, and the pellets are heated to about 200 to 230°C, melted and kneaded, and extruded to molds 26 and 27, where the skin material 28 It is then cold-formed together to form a product in the desired shape.
（発明が解決しようとする課題）
以上のように、従来の製法は基材原料を−Ｈペレット化
２３した後に、押出し機２４に投入し成形するものであ
る。ペレット化２３が必須の工程であるのは、仮にブレ
ンドされた溶融状態の樹脂原料をそのまま成形装置の押
出し礪２４に投入しても、従来の単軸のスクリューコン
ベア２５では原料の混練能力が低く、押出すことすらで
きないからである。たとえ、僅かにでも押出すことがで
きても、フィラーの分散が悪く、また突出量がばら付い
て（サージング）、製品の品質低下を招くことになる。(Problems to be Solved by the Invention) As described above, in the conventional manufacturing method, after the base material raw material is turned into -H pellets 23, it is charged into the extruder 24 and molded. Pelletization 23 is an essential step because even if the blended molten resin raw materials are directly fed into the extrusion tank 24 of the molding device, the kneading capacity of the raw materials is low with the conventional single-screw conveyor 25. , because it cannot even be extruded. Even if it is possible to extrude even a small amount, the filler is poorly dispersed and the amount of extrusion varies (surging), resulting in a deterioration in product quality.
また、ペレット化工程を経るため、基材原料は混練押出
し工程と、スタンピング成形：［程とで２度に口る熱履
歴を経ることになる。このため、フィラーに木粉等を使
用している場合には、これが焼（プ、その際に生じるガ
スによって他の樹脂フィラーが分解してしまうことがあ
った、。In addition, since it undergoes a pelletizing process, the base material undergoes two thermal cycles: the kneading and extrusion process, and the stamping process. For this reason, when wood flour or the like is used as a filler, other resin fillers may decompose due to the gas produced during baking.
このように、従来の成形機の押出し磯は混練能力が著し
く低いためにペレット化するし程が必須にならざるを得
ないのであるが、ペレット化工程は成形機の押出し機２
４を通過させるのに必要なものに過ぎず、内装材の製造
工程とは本米的に関係しない工程である。つまり、従来
の場合、作業工程に無駄が生じていることになる。In this way, the extrusion process of conventional molding machines has an extremely low kneading capacity, so it is necessary to pelletize it.
It is only necessary to pass step 4, and is not really related to the manufacturing process of interior materials. In other words, in the conventional case, there is waste in the work process.
本発明は上記の問題点に檻み、製品品質の低下を招くこ
となくペレット化工程を省略し、伯業工程の効率化を図
りつる製造方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention addresses the above-mentioned problems and aims to provide a production method that can omit the pelletizing step without deteriorating product quality and improve the efficiency of the manufacturing process.
（課題を解決するための手段）
上記の目的を達成するために、本発明の製造方法にあっ
ては、熱可塑性樹脂と無機あるいは有機フィラーとを撹
拌した後、これを複列のスクリューコンベアを備えた押
出し機に直接投入し、ここで加熱することにより基材原
料を撹拌溶融状態で通過させ、しかる後に冷間成形する
のである。(Means for Solving the Problems) In order to achieve the above object, in the manufacturing method of the present invention, after stirring a thermoplastic resin and an inorganic or organic filler, the mixture is transferred to a double-row screw conveyor. The material is directly charged into an equipped extruder and heated there to allow the base material material to pass through in a molten state while being stirred, and then cold-formed.
（作用）
基材原料である熱可塑性樹脂と無機あるいは有機フィラ
ーとは、まず所定の混合比で物理的に撹拌される。次い
で、そのまま押出し磯へ投入され、ここで加熱と同時に
撹拌される。即ち、押出し機では複数列設けられた各ス
クリューコンベアによって、従来よりも撹拌力が＾めら
れていることから、上記の原料は溶融状態でもよく撹拌
される。(Function) The thermoplastic resin, which is a base material raw material, and the inorganic or organic filler are first physically stirred at a predetermined mixing ratio. Next, the product is put into an extrusion tank as it is, where it is heated and stirred at the same time. That is, in the extruder, the stirring power is higher than that in the past due to the multiple rows of screw conveyors, so the above-mentioned raw materials are well stirred even in a molten state.
しかる後、冷開成形工程において所要の形状に成形され
る。Thereafter, it is molded into a desired shape in a cold-open molding process.
（実施例）
以下、本発明方法を具体化した実施例を図面にしたがっ
て詳細に説明する。(Example) Hereinafter, an example embodying the method of the present invention will be described in detail with reference to the drawings.
本例で使用された基材の原料は、熱可塑性樹脂としての
ポリプロピレン樹脂と、フィラーとしての木粉およびタ
ンカルである。そして、これらは重量化で前者を５０〜
９０％、後者をそれぞれ１０〜３０％の割合で調合され
る。これら原料はまず、内部に撹拌免１を備えたドライ
ブレンダ−２へそれぞれに対応するホッパ３，４を介し
て投入され、ここで混合分散される。The raw materials for the base material used in this example were polypropylene resin as a thermoplastic resin, and wood flour and tankar as fillers. And these are 50~50~
90%, and the latter at a ratio of 10 to 30%. These raw materials are first fed into a dry blender 2 equipped with an agitator 1 inside via corresponding hoppers 3 and 4, where they are mixed and dispersed.
こうした後に、従来と異なり、ペレット化工程を経るこ
となく押出し機５のホッパ６へそのまま投入される。After this, unlike the conventional method, the pellets are directly put into the hopper 6 of the extruder 5 without going through a pelletizing process.
押出し機５はシリンダ７と内蔵のスクリユー軸８ａ、８
ｂとを主体としてなる。スクリュー軸８ａ、８ｂはシリ
ンダ７の軸方向に並列して２列、それぞれ同方向へ緩速
回転可能に支持されている。The extruder 5 has a cylinder 7 and built-in screw shafts 8a, 8.
It consists mainly of b. The screw shafts 8a and 8b are supported in two rows parallel to each other in the axial direction of the cylinder 7 so as to be rotatable slowly in the same direction.
また、押出し機５のシリンダ７には図示しないヒータが
付設されている。さらに、シリンダ７の複数箇所には脱
気孔９．１０が貝通している。各脱気孔９．１０はそれ
ぞれ吸気装置（図示しない）が接続されており、基材原
料中の水分（水蒸気）と気泡分を除去する役割を果して
いる。Further, the cylinder 7 of the extruder 5 is provided with a heater (not shown). Further, the cylinder 7 is provided with deaeration holes 9 and 10 at a plurality of locations. Each deaeration hole 9.10 is connected to an air suction device (not shown), which serves to remove moisture (water vapor) and air bubbles from the base material.
なお、ヒータの設定温度は本例の場合、約１８０〜２２
０℃である。これは、ポリプロピレン樹脂−般の押出し
成形時の設定温度より２０〜３０℃程度低くなっている
。これは、スクリュー軸８ａ、８ｂの複列化によって混
練能力が高められているため、特に原料の可塑状態を高
めなくとも充分に混線可能であること等による。In addition, in this example, the set temperature of the heater is approximately 180 to 22
It is 0°C. This is about 20 to 30°C lower than the temperature set during extrusion molding of polypropylene resin in general. This is because the kneading ability is increased by making the screw shafts 8a and 8b double-rowed, so that sufficient mixing is possible without particularly increasing the plasticity of the raw materials.
かくして、この押出し礪５に投入された基材原料Ｓはヒ
ータで加熱されて溶融状態となる。この場合、従来のよ
うにスクリュー軸が中軸のものの場合には、基材原料は
見かけ比重が軽いため（０，２〜０．５ｇ／ｃ鴎３）、
撹拌が殆んど困難であるが、本例のようにスクリュー軸
８ａ、８ｂを２軸として撹拌能力を増強したものであれ
ば、基材原料Ｓは充分なｌｊｔ痒力を受けて軸方向へ移
動できる。加えて、この際には脱気孔９．１０からの吸
引により原料中の水分とガスとが除去される。上記の撹
理がなされた基材原料Ｓは押出し機５の先端に装着され
、成形型１１．１２へ向けて伸縮可能に延出された投入
用アーム１３から必要量だけ押出される。In this way, the base material S introduced into the extrusion tank 5 is heated by the heater and becomes molten. In this case, if the screw shaft is a central screw shaft as in the past, the apparent specific gravity of the base material is light (0.2 to 0.5 g/c 3).
Stirring is almost difficult, but if the stirring capacity is enhanced by using two screw shafts 8a and 8b as in this example, the base raw material S will receive sufficient ljt itching force and move in the axial direction. Can be moved. In addition, at this time, water and gas in the raw material are removed by suction from the degassing holes 9.10. The base raw material S subjected to the above stirring is attached to the tip of the extruder 5, and is extruded in the required amount from the injection arm 13 extendable and extendable toward the molds 11 and 12.
成形型１１．１２には基材原料の投入に先立ち、予め表
皮材１４がセットされる。表皮材１４としては、基材原
料Ｓとの接着性を考慮して、その裏面側が基材原料中の
樹脂原料と同系のポリプロピレン、ポリエチレン等のも
のであることが望ましい。また、ポリエステル等の不織
布であってもよい。The skin material 14 is set in advance in the molds 11 and 12 prior to charging the base material. The skin material 14 is desirably made of polypropylene, polyethylene, or the like similar to the resin raw material in the base material on the back side in consideration of adhesiveness with the base material S. Alternatively, a nonwoven fabric such as polyester may be used.
表皮材１４のセット後、成形型１１．１２内に基材原料
Ｓを投入し型締めすると、原料Ｓは型内で圧延され所定
形状に成形され、同時に表皮材１４に溶融接着する。し
かして、所定時間経過して基材原料Ｓが冷却固化すれば
、所望とする形状の内装材が取出される。After setting the skin material 14, the base material S is put into the mold 11.12 and the mold is clamped, and the raw material S is rolled in the mold and formed into a predetermined shape, and at the same time is fused and bonded to the skin material 14. When the base material S is cooled and solidified after a predetermined period of time has elapsed, an interior material having a desired shape is taken out.
こうして取出された製品は、基材原料の押出し時に充分
に脱気されていることから、発泡化が抑制されており、
製品の強度が確保されている。また、従来と異なり、熱
履歴も押出し時の１回だけであるため、基材原料の熱変
質も抑制され、製品の品質低下の防止が図れる。The product extracted in this way is sufficiently degassed during extrusion of the base material, so foaming is suppressed.
The strength of the product is ensured. Moreover, unlike the conventional method, the thermal history is only one time during extrusion, so thermal deterioration of the base material is also suppressed, and deterioration in product quality can be prevented.
〈発明の効果） 本発明の効果は次のようである。<Effect of the invention) The effects of the present invention are as follows.
■スクリューコンベアを複列として基材原料の撹拌能力
を増強したため、原料が溶融状態にあっても押出すこと
ができるため、ベレット化工程を省略できる。このため
、工程数が削減されて作業効率の向上が図れる。■The screw conveyor is double-rowed to increase the ability to stir the base raw material, allowing the raw material to be extruded even when it is in a molten state, so the pelletizing process can be omitted. Therefore, the number of steps can be reduced and work efficiency can be improved.
■基材原料の熱履歴の回数を減らすことができるため、
原料の熱変質を抑制して製品の高品質化に寄与する。■The number of thermal histories of the base material can be reduced, so
It suppresses thermal deterioration of raw materials and contributes to higher quality products.
第１図は本例方法に使用する５Ａ直の概略図、第２図か
ら第４図はそれぞれ成形工程を示す断面図、第５図（イ
）から（ハ）はそれぞれ従来の方法を示す説明図である
。
５・・・押出し機
８ａ、８ｂ・・・スクリュー軸
１１．１２・・・成形型
Ｓ・・・基材原料Fig. 1 is a schematic diagram of the 5A straight used in the method of this example, Figs. 2 to 4 are cross-sectional views showing the molding process, and Figs. 5 (a) to (c) are explanations showing the conventional method, respectively. It is a diagram. 5... Extruder 8a, 8b... Screw shaft 11.12... Molding mold S... Base material raw material
Claims (1)
後、これを複列のスクリューコンベアを備えた押出し機
に直接投入し、ここで加熱することにより基材原料を撹
拌溶融状態で通過させ、しかる後に冷間成形することを
特徴とする車両用内装材の製造方法。After stirring the thermoplastic resin and the inorganic or organic filler, it is directly fed into an extruder equipped with a double-row screw conveyor, where it is heated to pass the base material in a stirred and molten state, and then A method for manufacturing a vehicle interior material, characterized by cold forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63026309A JPH0617022B2 (en) | 1988-02-05 | 1988-02-05 | Vehicle interior material manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63026309A JPH0617022B2 (en) | 1988-02-05 | 1988-02-05 | Vehicle interior material manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01200922A true JPH01200922A (en) | 1989-08-14 |
| JPH0617022B2 JPH0617022B2 (en) | 1994-03-09 |
Family
ID=12189772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63026309A Expired - Lifetime JPH0617022B2 (en) | 1988-02-05 | 1988-02-05 | Vehicle interior material manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617022B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758577A (en) * | 2008-11-14 | 2010-06-30 | 张海忠 | Polypropylene forming machine |
-
1988
- 1988-02-05 JP JP63026309A patent/JPH0617022B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758577A (en) * | 2008-11-14 | 2010-06-30 | 张海忠 | Polypropylene forming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617022B2 (en) | 1994-03-09 |
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