JPH0233507B2 - GOSEIJUSHIHYOHITAINOSEIZOHO - Google Patents
GOSEIJUSHIHYOHITAINOSEIZOHOInfo
- Publication number
- JPH0233507B2 JPH0233507B2 JP8821882A JP8821882A JPH0233507B2 JP H0233507 B2 JPH0233507 B2 JP H0233507B2 JP 8821882 A JP8821882 A JP 8821882A JP 8821882 A JP8821882 A JP 8821882A JP H0233507 B2 JPH0233507 B2 JP H0233507B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding material
- temperature
- reservoir tank
- powdered
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 26
- 239000012778 molding material Substances 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000010408 film Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012254 powdered material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 239000004999 plastisol Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000001175 rotational moulding Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009966 trimming 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/18—Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
-
- 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
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
本発明は、粉状合成樹脂形材料、特に粉状熱可
塑性合成樹脂成形材料を用いてスラツシユ成形法
により外皮体を製造する方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an outer shell by a slush molding method using a powdered synthetic resin molding material, particularly a powdered thermoplastic synthetic resin molding material.
従来、自動車用セフテイパツド等の表皮体を成
形する方法としては、(イ)真空成形法、(ロ)プラスチ
ゾル又は粉状材料を用いた回転成形法、(ハ)プラス
チゾル又は粉状材料を用いたスラツシユ成形法、
(ハ)ウレタン系塗料等のスプレースキン成形法等が
知られているが、これらの各方法は何れも投入材
料に対して製品として必要とする材料の歩留りが
悪く、一般的には真空成形法では40〜70重量％、
回転成形法では20〜50重量％、スラツシユ成形法
では20〜40重量％、スプレー法では40〜80重量％
がロスとなつている状況である。 Conventionally, methods for forming skin bodies such as automotive safety pads include (a) vacuum forming, (b) rotational molding using plastisol or powdered materials, and (c) slushing using plastisol or powdered materials. molding method,
(c) Spray skin molding methods for urethane paints, etc. are known, but each of these methods has a poor yield of the material needed for the product relative to the input materials, and vacuum forming methods are generally preferred. 40-70% by weight,
20 to 50% by weight for rotational molding, 20 to 40% by weight for slush molding, and 40 to 80% by weight for spray molding.
is now a loss.
ところで、上記各方法のうち、比較的歩留りの
良好なスラツシユ成形法において、近時、更にそ
の改善法として特公昭54−10581号公報が発行さ
れ、温調用配管を第１領域、第２領域に分けて温
度制御を行なうことにより製品として不要部分の
肉厚を極力薄く形成する方法が提案されている。 By the way, among the above-mentioned methods, the slush molding method, which has a relatively good yield, has recently been published in Japanese Patent Publication No. 54-10581 as an improvement method, in which temperature control piping is placed in the first region and the second region. A method has been proposed in which the thickness of unnecessary parts of the product is made as thin as possible by separately controlling the temperature.
しかしながら、この方法は液状材料を使用する
方法であり、液状材料のため、型内のすべての不
要部分にも薄膜の形成することを抑止できないこ
とを前提とし、不要部分の肉厚を極力薄くしよう
とするに止まり、未だ材料収率の面で完全という
には至らないものである。 However, this method uses a liquid material, and because it is a liquid material, it is premised that it is not possible to prevent the formation of a thin film on all unnecessary parts of the mold, so it is necessary to make the wall thickness of unnecessary parts as thin as possible. However, it is still far from perfect in terms of material yield.
その上、この方法に用いられる金型は電鋳ニツ
ケル等で構成された薄肉型の外面に温調用配管を
施したものであるが、第１領域と第２領域に夫々
異なる温度の熱媒を流すために歪の発生が著しく
金型の耐用寿命に対して極めて悪い作用を及ぼし
ている。 Furthermore, the mold used in this method is a thin-walled mold made of electroformed nickel, etc., with temperature control piping attached to the outer surface, and heating medium at different temperatures is applied to the first and second regions. Due to the flow, distortion is significantly generated, which has a very negative effect on the service life of the mold.
本発明は上述の如き実状に鑑み、上記欠点を解
消し、100％に近い材料収率を得ると共に金型用
寿命とも極めて向上することのできる改善された
スラツシユ成形法による表皮体の製造法を提供す
ることを目的とするものである。 In view of the above-mentioned circumstances, the present invention provides a method for manufacturing a skin body using an improved slush molding method, which eliminates the above-mentioned drawbacks, obtains a material yield close to 100%, and significantly improves the life of the mold. The purpose is to provide
又、本発明の他の目的は、前記液状スラツシユ
法では、余剰ゾルを排出する段階で液体の流れ、
滴等により発生する偏肉のため、均一な薄膜を形
成することが困難であり、更に液状又は粉状材料
による回転成形法では鋭角部に肉厚を生ずること
が困難なために全体的な厚内成形が必要となるこ
とを解決し均一にして、かつ薄肉の表皮体を容易
に得る点にある。 Another object of the present invention is that in the liquid slush method, the flow of liquid,
Due to uneven thickness caused by drops, etc., it is difficult to form a uniform thin film, and furthermore, with rotary molding using liquid or powder materials, it is difficult to create wall thickness at acute corners, so the overall thickness is The purpose is to solve the need for internal molding, make it uniform, and easily obtain a thin skin body.
しかして、上記の如き諸目的を達成する本発明
の特徴は、金型の温度制御領域を第１、第２に分
けることなく必要部分にのみ一定の温度の熱媒を
通すことによつて不要部分の型温度を成形材料の
ゲル化温度以下に保持すると共に、型への歪の発
生を防止すること、そして成形材料として粉状材
料を使用し、余剰材料を拝出後、更に圧搾空気を
型内に噴射して非ゲル化材料を完全に排除し、不
要部分においては何らの薄膜をも形成しないよう
にしたスラツシユ成形による合成樹脂表皮体の製
造法にある。 Therefore, the feature of the present invention that achieves the above-mentioned objects is that the temperature control area of the mold is not divided into the first and second areas, but is passed through a heating medium at a constant temperature only to the necessary areas. In addition to maintaining the mold temperature of the part below the gelling temperature of the molding material, preventing the occurrence of distortion in the mold, and using powdered material as the molding material, and after removing the excess material, compressed air is further applied. A method of manufacturing a synthetic resin skin body by slush molding, in which non-gelling material is completely removed by injection into a mold, and no thin film is formed in unnecessary areas.
以下、本発明方法の具体的な態様を添付図面に
従つて説明する。 Hereinafter, specific embodiments of the method of the present invention will be explained with reference to the accompanying drawings.
第１図は本発明の製造方法を実施する表皮体の
製造装置の概要を示し、図中１は金型装置で、開
口した金型２が型支持部材３にセツトされてい
る。この型支持部材３は図示のように軸７によつ
て対向する一対の支持板６，６に固定され、軸線
Ａ−Ａのまわりで自在に回転する。そして上記軸
７から金型２の温度を調節するための温度調節用
配管１１が挿入され、これは金型２の外面の必要
な部分のみに密着して施されている。 FIG. 1 shows an outline of a skin manufacturing apparatus for carrying out the manufacturing method of the present invention. In the figure, 1 is a mold device, and an open mold 2 is set on a mold support member 3. As shown in the figure, the mold support member 3 is fixed to a pair of opposing support plates 6, 6 by a shaft 7, and freely rotates around the axis AA. A temperature control pipe 11 for regulating the temperature of the mold 2 is inserted from the shaft 7, and is provided in close contact with only the necessary portions of the outer surface of the mold 2.
また、一方、上記金型装置１の下方向において
は上記支持板６，６間に、粉状成形材料１０のリ
ザーバータンク４が揚重機５の上に設置されてお
り、揚重機５によつて随時、金型２と密接する位
置まで持ち上げられるようになつている。 On the other hand, in the downward direction of the mold device 1, between the support plates 6, 6, a reservoir tank 4 for powdered molding material 10 is installed on a lifting machine 5. It can be lifted up to a position where it comes into close contact with the mold 2 at any time.
第２図は上記第１図におけるリザーバータンク
４のＢ−Ｂ断面図であり、同図に示すようにリザ
ーバータンク４の開口部分には圧搾空気の噴射配
管８がリザーバータンク４の長手方向に沿つて設
けられ、この下側にはルーバー９があり、粉状成
形材料１０（以下、粉末材料という）のリザーバ
ータンク４への投入あるいは排出を制御する機能
を有している。 FIG. 2 is a cross-sectional view of the reservoir tank 4 taken along the line BB in FIG. A louver 9 is provided below the louver 9, and has a function of controlling the charging or discharging of the powder molding material 10 (hereinafter referred to as powder material) to the reservoir tank 4.
次に、叙上のような成形装置を使用して本発明
表皮体の製造方法を実施する場合の詳細について
第３図を参照して説明する。 Next, the details of carrying out the method for manufacturing a skin body of the present invention using the above-mentioned molding apparatus will be explained with reference to FIG.
ここで、図示実施例はセフテイパツド表皮体と
して平均粒径30ミクロンの粒状塩化ビニル樹脂を
素材とした場合で示す。 In the illustrated embodiment, the safety pad skin is made of granular vinyl chloride resin having an average particle size of 30 microns.
まず、常法によりヘンシエルミキサーを使用し
て製造した軟質塩ビの粉状材料１０をリザーバー
タンク４内に充満する。この場合、リザーバータ
ンク４の容量は金型容量に相当する容量か、少な
くとも金型２の容量以上に構成されている。 First, the reservoir tank 4 is filled with a soft PVC powder material 10 produced by a conventional method using a Henschel mixer. In this case, the capacity of the reservoir tank 4 is configured to be equivalent to the capacity of the mold, or at least larger than the capacity of the mold 2.
そして、金型の温度調節用配管１１に熱媒、例
えばホツトオイルを流して不要部分１２を除く金
型２の必要な部分の温度を120〜125℃に保持す
る。（第３図イ）
続いて金型装置１を軸線Ａ−Ａを中心線として
金型２の開口物がリザーバータンク４の開口と対
面する位置まで回転する。なお、前述の金型温度
120〜125℃は通常、塩ビ粉末材料１０のゲル化温
度であるが、温度調節用配管１１が施されていな
い不要部分１２の金型温度は50〜60℃であり、ゲ
ル化温度以下に保持されている。 Then, a heating medium, such as hot oil, is flowed through the temperature control piping 11 of the mold to maintain the temperature of the necessary portions of the mold 2, excluding the unnecessary portions 12, at 120 to 125°C. (FIG. 3A) Subsequently, the mold device 1 is rotated about the axis A-A to a position where the opening of the mold 2 faces the opening of the reservoir tank 4. In addition, the mold temperature mentioned above
120 to 125°C is usually the gelling temperature of the PVC powder material 10, but the mold temperature in the unnecessary part 12 where the temperature control piping 11 is not provided is 50 to 60°C, which is maintained below the gelling temperature. has been done.
次に、以上の操作を終るとリザーバータンク４
を乗せている揚重機５を上昇させて金型２とリザ
ーバータンク４を密接せしめ、その状態で両者を
クランプした後、揚重機５を下降させる。（第３
図ロ）
そして、その後、リザーバータンク４に設けた
圧搾空気の噴射配管８とルーバー９を閉鎖した状
態で金型装置１ならびにリザーバータンク４を回
転し、粉末材料１０が重力で金型２内に落下し得
る角度に保持し、前記ルーバー９を用いて金型２
内に粉末材料１０を充満させ（第３図ハ）、再び、
ルーバー９を閉鎖する。 Next, after completing the above operations, the reservoir tank 4
The lifting machine 5 on which the metal mold 2 and the reservoir tank 4 are placed is raised to bring the mold 2 and the reservoir tank 4 into close contact with each other, and after clamping them both in that state, the lifting machine 5 is lowered. (3rd
Then, with the compressed air injection pipe 8 and louver 9 provided in the reservoir tank 4 closed, the mold device 1 and the reservoir tank 4 are rotated, and the powder material 10 flows into the mold 2 by gravity. Hold the mold 2 at an angle where it can fall, and use the louver 9 to remove the mold 2.
The inside is filled with the powder material 10 (FIG. 3 C), and again,
Close louver 9.
かくして、粉末材料１０の充填が終ると、続い
て、金型装置１ならびにリザーバータンク４を再
度回転し粉状材料が重力でリザーバータンク４内
に落下し得る角度に保持した後、ルーバー９を開
いてリザーバータンク４内に余剰の粉末材料１０
を回収すると共に、金型２内に圧搾空気を噴射し
て非ゲル化粉末を金型表面から除去する。 After filling the powder material 10 in this manner, the mold device 1 and the reservoir tank 4 are rotated again to hold the powder material at an angle that allows it to fall into the reservoir tank 4 by gravity, and then the louver 9 is opened. The surplus powder material 10 is stored in the reservoir tank 4.
At the same time, compressed air is injected into the mold 2 to remove the non-gelled powder from the mold surface.
この場合、金型の必要部分にはその加熱された
温度によりゲル化薄膜１３が形成され、付着して
いる。（第３図ニ）
そして揚重機５を次に上昇し、クランプを解放
してリザーバータンクを元の位置まで下降させた
後、金型２の温度調節用配管１１内にある熱媒温
度を高め、金型の必要部分の温度を200〜220℃ま
で上昇させ金型２内のゲル化薄膜１３を溶融硬化
し、次いで熱媒温度を低下させて60〜70℃に冷却
する。（第３図ホ）
このようにして、一連の操作を行なつた後、続
いて、金型装置１を製品取出し位置まで回転し成
形品１４を金型２より脱型する。（第３図ヘ）
かくして、本発明における工程が完了し、成形
品１４即ち、表皮体が製造されることになる。 In this case, a gelled thin film 13 is formed and adhered to necessary parts of the mold due to the heated temperature. (Fig. 3 D) Then, the lifting machine 5 is raised, the clamp is released, and the reservoir tank is lowered to its original position, and then the temperature of the heat medium in the temperature control pipe 11 of the mold 2 is increased. The temperature of the necessary portions of the mold is raised to 200-220°C to melt and harden the gelled thin film 13 in the mold 2, and then the heating medium temperature is lowered to cool to 60-70°C. (FIG. 3E) After performing a series of operations in this manner, the mold device 1 is subsequently rotated to the product removal position and the molded product 14 is removed from the mold 2. (FIG. 3F) Thus, the steps in the present invention are completed, and the molded product 14, that is, the skin body is manufactured.
なお、上記実施例で示した粉末材料は塩化ビニ
ール粉末材料であるが、本発明ではこれ以外にポ
リエチレン、ポリプロピレン等の熱可塑性樹脂か
らなる各種粉末材料も同様に使用することができ
る。その場合、各粉末材料に適したゲル化温度が
選ばれることは当然である。又、金型の形状も図
示例に必らずしも拘束されるものではなく、目的
を逸脱しない範囲において適宜改変が許されるこ
とは云う迄もない。 Although the powder material shown in the above embodiments is a vinyl chloride powder material, various powder materials made of thermoplastic resins such as polyethylene and polypropylene can also be used in the present invention. In that case, it is natural to select a gelling temperature suitable for each powder material. Furthermore, the shape of the mold is not necessarily limited to the illustrated example, and it goes without saying that modifications may be made as appropriate within the scope of the purpose.
本発明は以上のような方法からなるものであ
り、次のような種々の技術的効果を奏する。 The present invention consists of the method described above, and has various technical effects as described below.
(1) 金型が、必要な部分のみに温度調節用配管が
存在している金型であり、そのため必要部分は
粉末材料の溶融温度に、不要部分はそれ以下の
温度に保持することができるところから、不必
要部分には粉末材料が付着しにくくなつて表皮
体のトリム作業が不必要になり、更には金型へ
の配管加工費が低減し、そして金型の温度分散
が自然的であり、歪発生を防止して耐用寿命の
飛躍的延長を図ることができる。(1) The mold has temperature control piping only in the necessary parts, so the necessary parts can be kept at the melting temperature of the powder material, and the unnecessary parts can be kept at a temperature lower than that. As a result, powder material is less likely to adhere to unnecessary areas, eliminating the need for trimming the skin, reducing the cost of piping to the mold, and allowing for natural temperature distribution in the mold. This prevents distortion and dramatically extends the service life.
(2) 粉末材料を金型からリザーバータンクへ排出
した後、金型内に圧搾空気を噴出することによ
つて金型内には余剰の粉末材料が存在しなくな
り、そのため100％に近い不必要な材料を回収
でき、更には金型に設けた温度調節用配管と相
俟つて、不必要部分には何らの薄膜も存在する
ことがない。(2) After discharging the powder material from the mold to the reservoir tank, by blowing out compressed air into the mold, there is no excess powder material in the mold, which reduces unnecessary powder material by close to 100%. Furthermore, in conjunction with the temperature control piping provided in the mold, no thin film is present in unnecessary areas.
(3) 粉末材料を入れるリザーバータンクを金型と
密接固定し、これらを回転させるところから、
粉末材料を金型へ投入ならびに金型からリザー
バータンクへ排出することができ、しかもこれ
らの工程時には粉末材料の飛散がなく、材料損
失を防止することができる。(3) The reservoir tank containing the powder material is tightly fixed to the mold, and these are rotated.
The powder material can be charged into the mold and discharged from the mold into the reservoir tank, and there is no scattering of the powder material during these steps, thereby preventing material loss.
(4) かくして本発明の製造方法は以上の点から従
来法に比し、格段に優れた効果を有し、実用性
に富み、工業上有利であることはもとより、経
済性、品質の面でもその実施が期待される方法
である。(4) Thus, from the above points, the manufacturing method of the present invention has much superior effects, is highly practical, and is industrially advantageous, as well as being economical and in terms of quality. This is the method that is expected to be implemented.
第１図は本発明の製造方法の実施に使用する表
皮体成形装置の概要図、第２図は第１図のＢ−Ｂ
断面図、第３図イ〜ヘは本発明方法の製造工程を
示す各工程概要説明図である。
２……金型、４……リザーバータンク、８……
圧搾空気噴出配管、１０……粉状成形材料、１１
……温度調節用配管、１２……不要部分。
Fig. 1 is a schematic diagram of a skin body forming apparatus used for carrying out the manufacturing method of the present invention, and Fig. 2 is a diagram showing B-B in Fig. 1.
The cross-sectional views and FIGS. 3A to 3F are schematic explanatory diagrams showing the manufacturing steps of the method of the present invention. 2...Mold, 4...Reservoir tank, 8...
Compressed air jetting piping, 10... Powdered molding material, 11
...Temperature control piping, 12...Unnecessary parts.
Claims (1)
た金型を使用し、該配管に所要温度の熱媒を通す
ことによつて金型の必要部分のみを粉状成形材料
の溶融温度に加熱し、残余の不要部分の型温度を
前記成形材料のゲル化温度以下に保持させて該金
型内へ粉状成形材料を投入し、次いで余剰の成形
材料を排出し、更に金型内に圧搾空気を噴出して
該金型内の非ゲル化成形材料を完全に排除して型
内の必要部分のみに溶融薄膜による表皮体を形成
させる一方、不要部分は何らの薄膜をも形成させ
ないようにしたことを特徴とする合成樹脂表皮体
の製造法。 ２ 外面の必要部分のみに温度調節用配管を配し
た金型と、粉末成形材料を収容し、前記金型に対
し接離可能なリザーバータンクとを利用し、前記
配管に熱媒体を流すことによつて金型の必要部分
のみを粉状成形材料の溶融温度まで加熱し、次に
粉状成形材料を収容した前記リザーバータンクを
金型と密接固定し、両者を共に回転することによ
つてリザーバータンク内から金型内へ前記粉状成
形材料を投入し、しかる後、再度前記両者を回転
することによつて粉状成形材料を金型からリザー
バータンクへ排出し、更に前記金型内に圧搾空気
を噴出して金型内の余剰の粉状成形材料を排出し
て金型内の必要部分のみに溶融皮膜からなる表皮
体を形成する反面、金型内の不要部分には上記表
皮体を形成せしめないようにしたことを特徴とす
る合成樹脂表皮体の製造法。[Scope of Claims] 1. Powder molding of only the necessary parts of the mold by using a mold with temperature control piping arranged only in the necessary parts of the outer surface and passing a heating medium at the required temperature through the pipes. Heating to the melting temperature of the material, keeping the mold temperature of the remaining unnecessary portion below the gelling temperature of the molding material, charging the powdered molding material into the mold, and then discharging the excess molding material, Furthermore, compressed air is blown into the mold to completely eliminate the non-gelled molding material in the mold, forming a skin of a molten thin film only in the necessary parts of the mold, while leaving no thin film in unnecessary parts. A method for producing a synthetic resin skin body characterized by preventing the formation of 2. By using a mold in which temperature control piping is arranged only in necessary parts of the outer surface, and a reservoir tank that accommodates powder molding material and can be moved into and out of contact with the mold, a heat medium is allowed to flow through the piping. Therefore, only the necessary portions of the mold are heated to the melting temperature of the powdered molding material, and then the reservoir tank containing the powdered molding material is closely fixed to the mold, and both are rotated together. The powdered molding material is put into the mold from the tank, and then both are rotated again to discharge the powdered molding material from the mold into the reservoir tank, and then compressed into the mold. Air is ejected to discharge excess powder molding material inside the mold, and a skin made of molten film is formed only on the necessary parts of the mold. A method for producing a synthetic resin skin body characterized by preventing formation of the skin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8821882A JPH0233507B2 (en) | 1982-05-25 | 1982-05-25 | GOSEIJUSHIHYOHITAINOSEIZOHO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8821882A JPH0233507B2 (en) | 1982-05-25 | 1982-05-25 | GOSEIJUSHIHYOHITAINOSEIZOHO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58205718A JPS58205718A (en) | 1983-11-30 |
| JPH0233507B2 true JPH0233507B2 (en) | 1990-07-27 |
Family
ID=13936746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8821882A Expired - Lifetime JPH0233507B2 (en) | 1982-05-25 | 1982-05-25 | GOSEIJUSHIHYOHITAINOSEIZOHO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233507B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60139412A (en) * | 1983-12-27 | 1985-07-24 | Honda Motor Co Ltd | Method and apparatus for measuring resin skin material |
| JPS62253417A (en) * | 1986-04-25 | 1987-11-05 | Mitsuboshi Belting Ltd | Method of slush molding skin material and its molding equipment |
| DE3636755A1 (en) * | 1986-10-29 | 1988-05-05 | Basf Ag | METHOD FOR PRODUCING HOLLOW BODIES |
-
1982
- 1982-05-25 JP JP8821882A patent/JPH0233507B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58205718A (en) | 1983-11-30 |
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