JP2576565B2 - Molding manufacturing method - Google Patents
Molding manufacturing methodInfo
- Publication number
- JP2576565B2 JP2576565B2 JP63029102A JP2910288A JP2576565B2 JP 2576565 B2 JP2576565 B2 JP 2576565B2 JP 63029102 A JP63029102 A JP 63029102A JP 2910288 A JP2910288 A JP 2910288A JP 2576565 B2 JP2576565 B2 JP 2576565B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- additional
- extrusion
- common
- manufacturing
- 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 - Fee Related
Links
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
- B29C48/03—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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は異なる横断面形状を有する複数種の長尺の
モールディングの製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a plurality of types of long moldings having different cross-sectional shapes.
車両用その他のモールディングとして、長尺の合成樹
脂成形品が使用されている。これらの中には基本的な製
造は同じであるが、細部において異なる横断面形状を有
するものがある。従来これらのモールディングは異なる
押出成形型を用いて、それぞれ別の製造工程で製造され
ていた。A long synthetic resin molded product is used as other moldings for vehicles. Some of these have the same basic manufacture but different details in cross section. Conventionally, these moldings have been manufactured in different manufacturing processes using different extrusion molds.
以下、車両用のモールディングを中心に説明する。第
10図は車両の斜視図である。図において、１は車体、２
はフロントウインドウ、３はドア、４はサイドウインド
ウ、５はウインドウモールディング、６はサイドモール
ディングである。Hereinafter, the description will focus on moldings for vehicles. No.
FIG. 10 is a perspective view of the vehicle. In the figure, 1 is a vehicle body, 2
Is a front window, 3 is a door, 4 is a side window, 5 is a window molding, and 6 is a side molding.
第11図は例えば特開昭61−135824号に示された従来の
ウインドウモールディング５を示す第10図のＡ−Ａ断面
図、第12図はＢ−Ｂ断面図、第13図はＣ部拡大図であ
る。ウインドウモールディング５は合成樹脂の押出成形
品であるアッパー部７とサイド部８とがコーナジョイン
ト９により接合されている。アッパー部７は第11図に示
すように、ウインドウプレート10と車体パネル11の間隙
を覆うモールディング本体5aから、ウインドウプレート
10に当接するリップ5b、車体パネル11に当接するリップ
5b′、および間隙に延びる脚部5c、ならびに脚部5cから
両側に伸びてウインドウプレート10および車体パネル11
に係合するひれ部5dが設けられ、合成樹脂により押出成
形されている。モールディング本体5aには装飾フィルム
12、脚部5cには芯材13が埋設されている。FIG. 11 is a sectional view taken along line AA of FIG. 10, showing a conventional window molding 5 disclosed in, for example, JP-A-61-135824, FIG. 12 is a sectional view taken along line BB, and FIG. FIG. The window molding 5 has an upper portion 7 and a side portion 8, which are extrusion molded products of a synthetic resin, joined to each other by a corner joint 9. As shown in FIG. 11, the upper part 7 is moved from the molding body 5a covering the gap between the window plate 10 and the vehicle body panel 11 to the window plate.
Lip 5b that abuts 10 and lip that abuts body panel 11
5b ′, and a leg 5c extending into the gap, and a window plate 10 and a body panel 11 extending to both sides from the leg 5c.
A fin 5d is provided, which is formed by extrusion with a synthetic resin. Decorative film on molding body 5a
12, a core 13 is embedded in the leg 5c.
サイド部８はアッパー部７と同じ横断面形状の共通部
14に付加部15として突条16が設けられて、せき17が形成
され、ウインドウプレート10上を流れる雨水を集めて流
下させ、サイドウインドウ４への横流れを防止するよう
になっている。コーナジョイント９は、このように横断
面形状の異なるアッパー部７とサイド部８を連結して一
体化するものである。The side part 8 is a common part having the same cross-sectional shape as the upper part 7
A ridge 16 is provided on the 14 as an additional portion 15 to form a weir 17, and rainwater flowing on the window plate 10 is collected and caused to flow down, thereby preventing lateral flow to the side window 4. The corner joint 9 connects and integrates the upper portion 7 and the side portion 8 having different cross-sectional shapes as described above.
このようにウインドウモールディング５は横断面形状
の異なるアッパー部７とサイド部８とからなり、両者は
アッパー部７に相当する共通部14に付加部15としての突
条16が付加した構造になっている。As described above, the window molding 5 includes the upper portion 7 and the side portion 8 having different cross-sectional shapes, and both have a structure in which the ridge 16 as the additional portion 15 is added to the common portion 14 corresponding to the upper portion 7. I have.
第14図は他のウインドウモールディング５を示す第10
図のＡ−Ａ断面図、第15図はＢ−Ｂ断面図である。この
ウインドウモールディング５は、モールディング本体5a
が金属板をロール成形した異形材からなり、クリップ18
により係止部材19に係合するようになっているが、他の
構成は第11図ないし第13図と同様となっており、共通部
14と付加部15から形成されている。FIG. 14 shows another window molding 5 in FIG.
FIG. 15 is a sectional view taken along line AA in FIG. 15, and FIG. 15 is a sectional view taken along line BB in FIG. This window molding 5 is a molding body 5a.
Is made of a rolled metal plate and has a clip 18
11 engages with the locking member 19, but the other configuration is the same as in FIGS.
14 and an additional portion 15.
第16図および第17図はサイドモールディング６を示す
斜視図である。サイドモールディング６は、芯材13を埋
設した合成樹脂の押出成形品からなるモールディング本
体6aを共通部14とし、車種によって付加部15として複数
本の突条16が付加された構造になっている。16 and 17 are perspective views showing the side molding 6. FIG. The side molding 6 has a structure in which a molding body 6a made of an extruded product of a synthetic resin in which a core material 13 is embedded is used as a common part 14, and a plurality of protrusions 16 are added as additional parts 15 depending on the type of vehicle.
第18図は従来のモールデイングの製造方法を示す系統
図である。従来の製造方法は、横断面形状の異なるモー
ルディング20ごとに横断面形状の異なる押出成形型21を
用い、これに装飾フィルム12、芯材13等を供給するとと
もに、押出機22から樹脂を供給して押出成形を行い、押
出成形材23を冷却層24で冷却し、引取機25で引取って、
切断機26で切断してモールディング20を製造している。FIG. 18 is a system diagram showing a conventional molding manufacturing method. The conventional manufacturing method uses an extrusion mold 21 having a different cross-sectional shape for each molding 20 having a different cross-sectional shape, and supplies a decorative film 12, a core material 13 and the like thereto, and supplies a resin from an extruder 22. Extrusion molding is performed, the extruded material 23 is cooled by the cooling layer 24, and is taken by the take-off machine 25,
The molding 20 is cut by a cutting machine 26.
〔発明が解決しようとする課題〕 しかしながら、このような従来の製造方法では、横断
面形状の異なるモールディングの種類ごとに押出成形型
を準備し、別々の工程でモールディングの押出成形を行
っているため、押出成形型の製作費用が高くなる。また
押出成形型の取替に時間を要するとともに、押出開始後
正確な寸法に安定して押出成形できるまでに時間を必要
とし、その間樹脂、芯材等の材料が無駄になる。このた
め上記のような従来の方法は多品種少量生産には適さな
いという問題点があった。[Problems to be Solved by the Invention] However, in such a conventional manufacturing method, an extrusion mold is prepared for each type of molding having a different cross-sectional shape, and the molding is extruded in separate steps. In addition, the manufacturing cost of the extrusion mold is increased. In addition, it takes time to exchange the extrusion mold, and it takes time until the extrusion can be stably extruded to an accurate size after the start of extrusion, during which time materials such as resin and core material are wasted. For this reason, the conventional method as described above has a problem that it is not suitable for high-mix low-volume production.
一方、押出成形に際して、押出成形型の出口付近で、
樹脂部を溶着する方法は知られている（例えば特開昭54
−93055号、同57−185133号、同60−116423号、同58−2
05746号、同59−59426号）。しかしながら、このような
方法も同一の横断面形状のモールディングの製造に用い
られており、横断面形状の異なる異種モールディングの
製造の場合には、モールディングの種類ごとに同数の押
出成形型を用いる必要がある。On the other hand, during extrusion molding, near the exit of the extrusion mold,
A method of welding a resin portion is known (for example, Japanese Patent Application Laid-Open No.
-93055, 57-185133, 60-116423, 58-2
05746, 59-59426). However, such a method is also used for manufacturing moldings having the same cross-sectional shape. In the case of manufacturing different types of moldings having different cross-sectional shapes, it is necessary to use the same number of extrusion dies for each type of molding. is there.
この発明の目的は、上記の問題点を解決するため、１
個の押出成形型を用いて、横断面形状の異なる複数種の
長尺のモールディングを、簡単な操作と短い時間で、連
続して効率よく製造することができ、付加部が不要な場
合はその樹脂の押出を停止することが可能なモールディ
ングの製造方法を提案することである。An object of the present invention is to solve the above problems by
Using multiple extrusion molds, multiple types of long moldings with different cross-sectional shapes can be continuously and efficiently manufactured with simple operation and in a short time. An object of the present invention is to propose a method of manufacturing a molding capable of stopping extrusion of a resin.
この発明は、異なる横断面形状を有する複数種の長尺
のモールディングを製造する方法において、各モールデ
ィングの共通部を形成する共通部押出孔と、それぞれの
モールディングの付加部を形成する１以上の付加部押出
孔とを近接位置に有する押出成形型に、別の押出機から
樹脂を供給して各押出孔から同期して押出し、押出され
た共通部および付加部を軟化状態にあるときに接合また
は分離した状態を保って第１のモールディングを製造
し、第１のモールディングの製造が予定量に達した後、
押出された共通部および付加部を分離または接合した状
態を保って第２のモールディングを製造することを特徴
とするモールディングの製造方法である。The present invention relates to a method for manufacturing a plurality of types of long moldings having different cross-sectional shapes, wherein a common portion extrusion hole forming a common portion of each molding and one or more additional holes forming an additional portion of each molding are provided. A resin is supplied from another extruder to an extrusion mold having a part extrusion hole and a close proximity position, and is extruded synchronously from each extrusion hole, and the extruded common part and the additional part are joined or bonded when in a softened state. The first molding is manufactured while keeping the separated state, and after the manufacturing of the first molding reaches a predetermined amount,
A method for manufacturing a molding, comprising manufacturing a second molding while maintaining a state where an extruded common portion and an additional portion are separated or joined.
各押出機から供給する樹脂は同一の樹脂でも異なる樹
脂でもよく、異なる樹脂の場合は相溶性を有する樹脂が
好ましい。また同一の樹脂の場合でも、色調、硬度等の
異なる樹脂を組合せることもできる。The resins supplied from each extruder may be the same resin or different resins. In the case of different resins, resins having compatibility are preferable. Further, even in the case of the same resin, resins having different color tones and hardness can be combined.
モールディングの製造に際して共通部と付加部を接合
したり分離したりする順序は任意であるが、共通部と付
加部とを接合した状態を保って第１のモールディングを
製造した後、共通部と付加部を分離した状態を保って第
２のモールディングを製造するのが好ましい。また付加
部押出孔を複数個設けて、別の押出機に接続し、複数の
付加部を選択的に組合せて接合するように切換えてもよ
い。付加部は下側から上向きに接合させるようにする
と、分離時に自重で落下して分離するので好ましいが、
分離時に付加部押出孔に対応する押出機を停止するとき
は、付加部を上または横から接合することもできる。ま
た付加部の接合または分離を開始する際、付加部を切断
すると、付加部がただちに接合、分離するため付加部が
押出成形品を引張って変形させることがないので好まし
い。The order in which the common part and the additional part are joined or separated in the manufacture of the molding is arbitrary, but after the first molding is manufactured while maintaining the state in which the common part and the additional part are joined, the common part and the additional part are added. It is preferable to manufacture the second molding while keeping the parts separated. Alternatively, a plurality of additional portion extrusion holes may be provided, connected to another extruder, and switched so that a plurality of additional portions are selectively combined and joined. It is preferable that the additional portion be joined upward from the lower side, since it falls under its own weight and separates at the time of separation, but it is preferable.
When the extruder corresponding to the additional section extrusion hole is stopped at the time of separation, the additional section can be joined from above or from the side. Further, when joining or separating the additional portion is started, it is preferable to cut the additional portion, since the additional portion is immediately joined and separated, so that the additional portion does not pull and deform the extruded product.
本発明において製造の対象となるモールディングとし
ては、ウインドウモールディング、サイドモールディン
グ等の車両用のモールディングのほか、建築用サッシ等
の建具、家庭電気製品の飾り条、家具のトリム縁など、
車両用以外の一般のモールディングが含まれる。The moldings to be manufactured in the present invention include window moldings, vehicle moldings such as side moldings, as well as fittings such as architectural sashes, decorative strips for home appliances, and trim edges of furniture.
General moldings other than those for vehicles are included.
本発明のモールディングの製造方法においては、異な
る横断面形状を有する複数種の長尺のモールディングを
製造する際、押出成形型の共通部押出孔と付加部押出孔
とに、別の押出機から樹脂を供給して、各押出孔から同
期して押出し、押出された共通部および付加部を出口付
近で軟化状態で接合し、または分離した状態を保って第
１のモールディングを製造する。第１のモールディング
の製造が予定量に達した後、押出された共通部および付
加部を分離または接合した状態を保って第２のモールデ
ィングを製造する。分離時には付加部押出孔に樹脂を供
給する押出機は停止するのが好ましいが、そのまま押出
を続けてもよい。分離した状態で押出される付加部は回
収して再度使用される。In the method for manufacturing a molding of the present invention, when manufacturing a plurality of types of long moldings having different cross-sectional shapes, the resin is supplied from another extruder to a common portion extrusion hole and an additional portion extrusion hole of an extrusion die. And extrude synchronously from each extrusion hole, join the extruded common part and the additional part in the softened state near the outlet, or maintain the separated state to produce the first molding. After the production of the first molding reaches the predetermined amount, the second molding is produced while keeping the extruded common part and the additional part separated or joined. At the time of separation, the extruder that supplies the resin to the additional portion extrusion hole is preferably stopped, but the extrusion may be continued as it is. The additional portion extruded in a separated state is recovered and reused.
以下、本発明を図面の実施例に基づいて説明する。第
１図は第11図ないし第13図のモールディングを製造する
実施例の製造方法を示す概略系統図、第２図は接合状態
を示す要部断面図、第３図は分離状態を示す要部断面
図、第４図は第２図および第３図のＤ−Ｄ断面図、第５
図は第２図のＥ−Ｅ断面図、第６図は第３図のＦ−Ｆ断
面図、第７図は第３図のＧ部拡大図、第８図はそのＪ方
向斜視図であり、第10図ないし第18図と同一符号は同一
または相当部分を示す。Hereinafter, the present invention will be described based on embodiments of the drawings. 1 is a schematic system diagram showing a manufacturing method of an embodiment for manufacturing the molding shown in FIGS. 11 to 13, FIG. 2 is a cross-sectional view of a main part showing a joined state, and FIG. 3 is a main part showing a separated state. FIG. 4 is a sectional view taken along line DD of FIGS. 2 and 3, and FIG.
FIG. 6 is a sectional view taken along line EE of FIG. 2, FIG. 6 is a sectional view taken along line FF of FIG. 3, FIG. 7 is an enlarged view of a portion G in FIG. 3, and FIG. 10 to FIG. 18 indicate the same or corresponding parts.
押出成形型21はアダプタ27および押出ダイ28からな
り、モールディング20の共通部14を形成する共通部押出
孔29および付加部15を形成する付加部押出孔30を有し、
それぞれ別の樹脂流路31、31aを経て別の押出機22、22a
に連結されている。押出ダイ28の出口側には共通部14を
上から支持するガイド32が設けられ、これに対向して下
側に接合部材33が設けられ、流体圧シリンダ34により往
復動するようになっている。接合部材33は摺動溝35を有
する受台36の押出ダイ28と近接する部分の上部に、金属
線からなる切断刃37がフレーム36aにより取付けられて
いる。受台36は金属、硬質樹脂等、平滑な表面を有しか
つ付加部15の樹脂が接着しないものが好ましい。The extrusion mold 21 includes an adapter 27 and an extrusion die 28, and has a common part extrusion hole 29 forming the common part 14 of the molding 20 and an additional part extrusion hole 30 forming the additional part 15,
Another extruder 22, 22a via different resin flow paths 31, 31a respectively
It is connected to. A guide 32 for supporting the common portion 14 from above is provided on the outlet side of the extrusion die 28, and a joining member 33 is provided on the lower side to face the guide 32, and is reciprocated by a fluid pressure cylinder 34. . The joining member 33 has a cutting blade 37 made of a metal wire attached by a frame 36a to an upper portion of a portion of the receiving base 36 having the sliding groove 35 in proximity to the extrusion die 28. The pedestal 36 is preferably made of metal, hard resin, or the like, which has a smooth surface and to which the resin of the additional portion 15 does not adhere.
モールディング20（ウインドウモールディング５のア
ッパー部７およびサイド部８）の製造方法は、共通部14
の樹脂原料を供給管41からホッパー42を経て押出機22に
供給し、また付加部15の原料樹脂を供給管41aからホッ
パー42aを経て押出機22aに供給し、ここで溶融した樹脂
43、43aを押出成形型21の樹脂流路31、31aに供給する。
一方アンコイラー44から装飾フィルム12、芯材13等を押
出成形型21の共通部押出孔29に供給して押出成形を行
う。装飾フィルム12、芯材13は別の位置に供給される
が、簡略化のため１本の線で図示されている。The manufacturing method of the molding 20 (the upper part 7 and the side part 8 of the window molding 5)
Is supplied from the supply pipe 41 to the extruder 22 via the hopper 42, and the raw material resin of the additional portion 15 is supplied from the supply pipe 41a to the extruder 22a via the hopper 42a, and the molten resin is supplied here.
43, 43a are supplied to the resin flow paths 31, 31a of the extrusion mold 21.
On the other hand, the decorative film 12, the core material 13 and the like are supplied from the uncoiler 44 to the common portion extrusion hole 29 of the extrusion molding die 21 to perform extrusion molding. The decorative film 12 and the core 13 are supplied at different positions, but are shown by one line for simplicity.
押出成形型21では、押出機22、22aから供給された樹
脂43、43aはそれぞれ別の樹脂流路31、31aから共通部押
出孔29および付加部押出孔30に送られて押出され、それ
ぞれ共通部14および付加部15を離間した状態で形成す
る。押出成形開始時は第３図に示すように、接合部材33
を後退させた状態で樹脂43を押出してテストランを行
い、付加部15は落下させておく。落下した付加部15は回
収機45によりペレット化して回収し、返送管46からホッ
パー42aに返送して再使用することができる。In the extrusion mold 21, the resins 43 and 43a supplied from the extruders 22 and 22a are sent from different resin flow paths 31 and 31a to the common part extrusion hole 29 and the additional part extrusion hole 30, respectively, and extruded. The part 14 and the additional part 15 are formed in a separated state. At the start of extrusion, as shown in FIG.
The resin 43 is extruded in a state where is retracted, a test run is performed, and the additional unit 15 is dropped. The dropped additional unit 15 is pelletized and collected by the collection machine 45, and can be returned from the return pipe 46 to the hopper 42a for reuse.
共通部14および付加部15が正確な寸法に安定した状態
で押出されるようになると、第１工程として、共通部14
と付加部15が接合したモールディング20（実施例ではウ
インドウモールディング５のサイド部８）を製造するた
めに、第２図および第５図に示すように、流体圧シリン
ダ34により接合部材33を前進させ、付加部15を共通部14
に接合させる。この場合切断刃37の上昇によっては付加
部15は切断され、切断前に押出されていた付加部15は自
重によって自然落下するとともに、切断後に押出される
付加部15は受台36の摺動溝35に沿って送出され、受台36
の上昇によって共通部14に溶着される。このとき共通部
14はガイド32によって上から支持されており、変形が防
止される。When the common portion 14 and the additional portion 15 are extruded in a stable state with accurate dimensions, as a first step, the common portion 14 and the additional portion 15 are extruded.
In order to manufacture the molding 20 (in the embodiment, the side portion 8 of the window molding 5) in which the joining member 33 is joined to the additional member 15, the joining member 33 is advanced by the fluid pressure cylinder 34 as shown in FIGS. , Adding part 15 to common part 14
To be joined. In this case, the additional portion 15 is cut by the raising of the cutting blade 37, the additional portion 15 that has been extruded before cutting falls naturally by its own weight, and the additional portion 15 that is extruded after cutting is formed by the sliding groove of the receiving base 36. Sent out along 35, cradle 36
Is welded to the common portion 14 by the rise of At this time common part
14 is supported from above by a guide 32 to prevent deformation.
共通部14および付加部15は軟化状態で接合するため、
直ちに溶着して一体化し、接合した状態を保って、両者
が接合した押出成形材23が得られる。その後冷却層24で
冷却されて固化し、引取機25で引取られ、センサー47で
位置を検出しながら切断機26で切断され、モールディン
グ20（サイド部８）が製造される。このとき切断機26で
切断せず、アイドラー48を経てセンサー49で位置を検出
しながら巻取ドラム50に巻取り、後で切断してモールデ
ィング20を得ることもできる。Since the common part 14 and the additional part 15 are joined in a softened state,
Immediately welded and integrated, and maintaining the joined state, an extruded material 23 in which both are joined is obtained. Thereafter, it is cooled and solidified by the cooling layer 24, is taken by the take-off machine 25, is cut by the cutting machine 26 while detecting the position by the sensor 47, and the molding 20 (side portion 8) is manufactured. At this time, the molding 20 can also be obtained by winding onto the winding drum 50 while detecting the position with the sensor 49 via the idler 48 without cutting with the cutting machine 26, and cutting later.
第１工程による付加部15が接合したモールディング20
の製造が予定量に達した後、第２工程として付加部15が
接合しないモールディング20（実施例ではウインドウモ
ールディング５のアッパー部７）を製造するために、第
３図および第６図に示すように流体圧シリンダ34により
接合部材33を後退させ、付加部15を分離した状態を保っ
て落下させる。この場合切断刃37の下降によって付加部
15は切断され、切断後に押出される付加部15は摺動溝35
に沿って自重で落下する。ここで押出機22aによる樹脂4
3aの供給を停止してもよいが、後工程で接合を再開する
ような場合には、そのまま押出を続けることもできる。
この場合付加部15は回収機45から回収されてホッパー42
に返送される。こうして共通部14のみからなる押出成形
材23が得られ、前記と同様にして付加部15が接合しない
モールディング20（アッパー部７）が製造される。The molding 20 to which the additional part 15 from the first step is joined
As shown in FIGS. 3 and 6, in order to manufacture the molding 20 (in the embodiment, the upper portion 7 of the window molding 5) in which the additional portion 15 is not joined as the second step after the production of the molding reaches the predetermined amount. Then, the joining member 33 is retracted by the fluid pressure cylinder 34, and is dropped while keeping the additional portion 15 separated. In this case, the additional portion is
15 is cut, and the additional portion 15 extruded after the cutting is a sliding groove 35.
Falls along its own weight. Here, the resin 4 by the extruder 22a
The supply of 3a may be stopped, but when joining is restarted in a later step, extrusion can be continued as it is.
In this case, the addition unit 15 is collected from the collection machine 45 and
Will be returned to Thus, an extruded material 23 consisting of only the common portion 14 is obtained, and a molding 20 (upper portion 7) in which the additional portion 15 is not joined is manufactured in the same manner as described above.
以上の説明において、共通部14を形成する樹脂43およ
び付加部15を形成する樹脂43aは同一のものでも別のも
のでもよく、また色調、透明度、硬度が異なるものを自
由に選択することができる。例えば実施例のウインドウ
モールディング５の場合、付加部15としての突条16に硬
度の高いものを使用すると、使用中における突条16の変
形を防止することができる。In the above description, the resin 43 forming the common portion 14 and the resin 43a forming the additional portion 15 may be the same or different, and the color tone, transparency, and hardness may be freely selected. . For example, in the case of the window molding 5 according to the embodiment, if a ridge 16 having a high hardness is used as the additional portion 15, deformation of the ridge 16 during use can be prevented.
上記実施例では共通部14と付加部15とを離間した状態
でテストランを行ったが、両者を接合させた状態でテス
トランを行ってもよい。また第１工程として共通部14と
付加部15が接合したモールディング20（サイド部８）を
製造し、第２工程として付加部15が接合しないモールデ
ィング20（アッパー部７）を製造したが、逆でもよい。
第14図および第15図のウインドウモールディング５およ
び第16図および第17図のサイドモールディング６も同様
にして製造される。このほか付加部押出孔30を複数個設
けて、同一または別の押出機に接続し、これに対応して
接合部材33も複数個設けて、異なる付加部15を接合さ
せ、異なる横断面形状を有する多種のモールディングを
製造することもできる。In the above embodiment, the test run was performed with the common unit 14 and the additional unit 15 separated from each other. However, the test run may be performed with the two portions joined. Also, as a first step, a molding 20 (the side part 8) in which the common part 14 and the additional part 15 are joined is manufactured, and as a second step, a molding 20 (the upper part 7) in which the additional part 15 is not joined is manufactured. Good.
The window molding 5 in FIGS. 14 and 15 and the side molding 6 in FIGS. 16 and 17 are manufactured in the same manner. In addition, a plurality of additional portion extrusion holes 30 are provided, connected to the same or different extruders, and a plurality of joining members 33 are provided correspondingly, and different additional portions 15 are joined to form different cross-sectional shapes. Various types of moldings can be manufactured.
第９図は他の実施例における接合部材33を示す断面図
である。この接合部材33は、摺動溝35を有する２個のロ
ーラ51、52がガイドフレーム53に取付けられたローラ式
のものであり、ローラ51、52が回転して付加部15を押付
けるようになっている。FIG. 9 is a sectional view showing a joining member 33 in another embodiment. The joining member 33 is of a roller type in which two rollers 51 and 52 having sliding grooves 35 are attached to a guide frame 53, and the rollers 51 and 52 rotate so as to press the additional portion 15. Has become.
本発明によれば、押出成形型の共通部押出孔と付加部
押出孔に別の押出機から樹脂を供給して押出し、押出さ
れた共通部と付加部を接合または分離した状態を保って
第１のモールディングを製造し、第１のモールディング
の製造量が予定量に達した後、押出された共通部と付加
部を分離または接合した状態を保って第２のモールディ
ングを製造するようにしたので、１個の押出成形型を用
いて横断面形状の異なる複数種のモールディングを連続
して効率よく製造することができ、押出成形型の交換お
よびそれに伴うテストランが不要となるとともに、分離
時における樹脂の供給を停止でき、これにより型および
材料費が節減され、製造時間も短縮される。According to the present invention, the resin is supplied from another extruder to the common portion extrusion hole and the additional portion extrusion hole of the extrusion mold and extruded, and the extruded common portion and the additional portion are joined or separated while maintaining the joined state. Since the first molding is manufactured, and after the production amount of the first molding reaches a predetermined amount, the second molding is manufactured while keeping the extruded common part and the additional part separated or joined. 1. It is possible to continuously and efficiently manufacture a plurality of types of moldings having different cross-sectional shapes by using one extrusion mold, thereby eliminating the necessity of extruding mold replacement and the accompanying test run. The supply of resin can be stopped, which saves mold and material costs and reduces production time.
第１図は実施例の製造方法を示す概略系統図、第２図は
接合状態を示す要部断面図、第３図は分離状態を示す要
部断面図、第４図は第２図および第３図のＤ−Ｄ断面
図、第５図は第２図のＥ−Ｅ断面図、第６図は第３図の
Ｆ−Ｆ断面図、第７図は第３図のＧ部拡大図、第８図は
そのＪ方向斜視図、第９図は他の実施例の接合部材の断
面図、第10図は車両の斜視図、第11図および第14図は従
来のウインドウモールディングを示す第10図のＡ−Ａ断
面図、第12図および第15図はＢ−Ｂ断面図、第13図はＣ
部拡大図、第16図および第17図は従来のサイドモールデ
ィングを示す斜視図、第18図は従来のモールディングの
製造方法を示す系統図である。 各図中、同一符号は同一または相当部分を示し、５、
６、20はモールディング、14は共通部、15は付加部、21
は押出成形型、22、22aは押出機、23は押出成形材、24
は冷却槽、25は引取機、26は切断機、29は共通部押出
孔、30は付加部押出孔、33は接合部材である。FIG. 1 is a schematic system diagram showing a manufacturing method of the embodiment, FIG. 2 is a cross-sectional view of a main part showing a joined state, FIG. 3 is a cross-sectional view of a main part showing a detached state, FIG. 3 is a sectional view taken along line DD, FIG. 5 is a sectional view taken along line EE in FIG. 2, FIG. 6 is a sectional view taken along line FF in FIG. 3, FIG. 8 is a perspective view in the J direction, FIG. 9 is a sectional view of a joining member of another embodiment, FIG. 10 is a perspective view of a vehicle, and FIGS. 11 and 14 show a conventional window molding. FIG. 12 is a sectional view taken along the line BB, FIG. 12 and FIG.
16 and 17 are perspective views showing a conventional side molding, and FIG. 18 is a system diagram showing a method for manufacturing the conventional molding. In the drawings, the same reference numerals indicate the same or corresponding parts, and 5,
6, 20 are moldings, 14 is a common part, 15 is an additional part, 21
Is an extrusion mold, 22, 22a is an extruder, 23 is an extruded material, 24
Is a cooling tank, 25 is a take-off machine, 26 is a cutting machine, 29 is a common part extrusion hole, 30 is an additional part extrusion hole, and 33 is a joining member.
フロントページの続き (72)発明者 田村 達也 神奈川県横浜市戸塚区上矢部町字藤井 320番地 橋本フォーミング工業株式会 社内 (56)参考文献 特開 昭63−112138（ＪＰ，Ａ) 特開 昭59−158239（ＪＰ，Ａ) 特開 昭62−222824（ＪＰ，Ａ)Continuation of the front page (72) Inventor Tatsuya Tamura 320, Fujii, Kamiyabe-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture In-house Hashimoto Forming Industry Co., Ltd. (56) References JP-A-63-112138 (JP, A) JP-A-59 -158239 (JP, A) JP-A-62-222824 (JP, A)
Claims (3)
モールディングを製造する方法において、各モールディ
ングの共通部を形成する共通部押出孔と、それぞれのモ
ールディングの付加部を形成する１以上の付加部押出孔
とを近接位置に有する押出成形型に、別の押出機から樹
脂を供給して各押出孔から同期して押出し、押出された
共通部および付加部を軟化状態にあるときに接合または
分離した状態を保って第１のモールディングを製造し、
第１のモールディングの製造が予定量に達した後、押出
された共通部および付加部を分離または接合した状態を
保って第２のモールディングを製造することを特徴とす
るモールディングの製造方法。1. A method of manufacturing a plurality of types of long moldings having different cross-sectional shapes, comprising: a common portion extrusion hole forming a common portion of each molding; and at least one forming an additional portion of each molding. A resin is supplied from another extruder to an extrusion mold having an additional portion extrusion hole at a close position and extruded synchronously from each extrusion hole, and the extruded common portion and the additional portion are joined when in a softened state. Or manufacture the first molding while keeping it separate,
A method for manufacturing a molding, comprising manufacturing a second molding while maintaining a state in which an extruded common part and an additional part are separated or joined after the first molding reaches a predetermined amount.
ディングを製造した後、共通部と付加部を分離した状態
を保って第２のモールディングを製造する請求項１記載
の方法。2. The method according to claim 1, wherein the first molding is manufactured by joining the common portion and the additional portion, and then the second molding is manufactured while keeping the common portion and the additional portion separated.
部の樹脂の供給を停止する請求項２記載の方法。3. The method according to claim 2, wherein the supply of the resin in the additional section is stopped when manufacturing the second molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63029102A JP2576565B2 (en) | 1988-02-10 | 1988-02-10 | Molding manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63029102A JP2576565B2 (en) | 1988-02-10 | 1988-02-10 | Molding manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01204714A JPH01204714A (en) | 1989-08-17 |
| JP2576565B2 true JP2576565B2 (en) | 1997-01-29 |
Family
ID=12266981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63029102A Expired - Fee Related JP2576565B2 (en) | 1988-02-10 | 1988-02-10 | Molding manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2576565B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0745379Y2 (en) * | 1989-11-22 | 1995-10-18 | 東海興業株式会社 | Automotive windshield sealing equipment |
| JP3072941B2 (en) * | 1992-06-26 | 2000-08-07 | 東海興業株式会社 | Manufacturing method of automotive molding |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5126166A (en) * | 1974-08-23 | 1976-03-03 | Hashimoto Forming Kogyo Co | Goseijushitono soshokuheno kochakushita soshokuzai oyobisono seizoho |
| JPS5337776A (en) * | 1976-09-21 | 1978-04-07 | Hashimoto Forming Kogyo Co | Plastic extrusion moldings fastened to metallic cores and their manufacturing process |
| JPS57185133A (en) * | 1981-05-09 | 1982-11-15 | Toyoda Gosei Co Ltd | Manufacture of extrudate with surface gloss |
| JPS62222825A (en) * | 1986-03-25 | 1987-09-30 | Kinugawa Rubber Ind Co Ltd | Apparatus for opening and closing outflow part of elastic material |
| JPS62222824A (en) * | 1986-03-25 | 1987-09-30 | Kinugawa Rubber Ind Co Ltd | Apparatus for preparing weather strip containing core material |
| JPS63112138A (en) * | 1986-10-30 | 1988-05-17 | Toyoda Gosei Co Ltd | Method and apparatus for producing rubber extrusion |
-
1988
- 1988-02-10 JP JP63029102A patent/JP2576565B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01204714A (en) | 1989-08-17 |
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