JP2560394B2 - Molding manufacturing method - Google Patents
Molding manufacturing methodInfo
- Publication number
- JP2560394B2 JP2560394B2 JP63047090A JP4709088A JP2560394B2 JP 2560394 B2 JP2560394 B2 JP 2560394B2 JP 63047090 A JP63047090 A JP 63047090A JP 4709088 A JP4709088 A JP 4709088A JP 2560394 B2 JP2560394 B2 JP 2560394B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- common
- additional
- extrusion
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0063—Cutting longitudinally
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
-
- 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
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (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個の長尺の
モールディングの製造方法に関するものである。The present invention relates to a method for manufacturing a plurality 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構
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 them have the same basic structure but different cross-sectional shapes in detail. Conventionally, these moldings have been manufactured by 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
15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イング、6はサイドモール
ディングである。Hereinafter, the molding for the vehicle will be mainly described. First
FIG. 15 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16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15図のA−A断面
図、第17図はB−B断面図、第18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16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′、および間隙に伸びる脚部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には装飾フイルム
12、脚部5cには芯材13が埋設されている。FIG. 16 is a sectional view taken along line AA of FIG. 15 showing a conventional window molding 5 disclosed in, for example, Japanese Patent Laid-Open No. 61-135824, FIG. 17 is a sectional view taken along line BB, and FIG. It is a figure. The window molding 5 has an upper portion 7 and a side portion 8 which are synthetic resin extruded products and are joined by a corner joint 9. As shown in FIG. 16, the upper portion 7 includes a molding main body 5a that covers a gap between the window plate 10 and the vehicle body panel 11,
Lip 5b that abuts 10 and lip that abuts body panel 11
5b ', the leg portion 5c extending into the gap, and the window plate 10 and the vehicle body panel 11 extending from the leg portion 5c to both sides.
A fin 5d is provided, which is formed by extrusion with a synthetic resin. Decorative film on the 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 as an additional portion 15 on the base 14, and a crest 17 is formed so that rainwater flowing on the window plate 10 is collected and made to flow down to prevent 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 is composed of the upper portion 7 and the side portion 8 having different cross-sectional shapes, and both have a structure in which the protrusion 16 as the additional portion 15 is added to the common portion 14 corresponding to the upper portion 7. There is.
第19図は他のウインドウモールディング5を示す第15
図のA−A断面図、第20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、第16図および第17図の
モールディング5の装飾フイルム12が省略され、モール
ディング本体5aの外表面が均一な面となっている。Fig. 19 shows another window molding 5 Fig. 15
FIG. 20 is a sectional view taken along the line A-A in FIG. In this window molding 5, the decorative film 12 of the molding 5 of FIGS. 16 and 17 is omitted, and the outer surface of the molding body 5a is a uniform surface.
第21図および第22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、装飾フイル
ム12および芯材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。第23図および第24図は他のサイドモールディ
ング6を示し、第21図および第22図のものから装飾フイ
ルム12が省略された構造になっている。21 and 22 are perspective views showing the side molding 6. The side molding 6 has a structure in which a molding body 6a made of a synthetic resin extruded product in which a decorative film 12 and a core material 13 are embedded is used as a common portion 14, and a plurality of protrusions 16 are added as additional portions 15 depending on the vehicle type. Has become. 23 and 24 show another side molding 6, which has a structure in which the decorative film 12 is omitted from those shown in FIGS. 21 and 22.
第25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。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、これに装飾フイルム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を冷却槽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. 25 is a system diagram showing a conventional molding manufacturing method. The conventional manufacturing method uses extrusion molding dies 21 having different cross-sectional shapes for each molding 20 having different cross-sectional shapes, and supplies the decorative film 12, the core material 13 and the like to this, and also supplies the resin from the extruder 22. Perform extrusion molding, cool the extruded material 23 in the cooling tank 24, and take it by the take-off machine 25,
The cutting machine 26 cuts to manufacture the molding 20.
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。However, in such a conventional manufacturing method, an extrusion molding die is prepared for each type of molding having a different cross-sectional shape, and extrusion molding of the molding is performed in separate steps, so that the manufacturing cost of the extrusion molding die is high. Become. Further, it takes time to replace the extrusion mold, and it also takes time until the extrusion can be stably carried out to an accurate dimension after the start of extrusion, during which time materials such as resin and core material are wasted.
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が知られている(例えば特公昭54
−11829号、特開昭54−93055号、同57−185133号、同60
−116423号、同58−205746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 Publication No.
-11829, JP-A-54-93055, 57-185133, 60
-116423, 58-205746, 59-59426). However, such a method is also used for manufacturing moldings having the same cross-sectional shape, and in the case of manufacturing different moldings having different cross-sectional shapes, it is necessary to use the same number of extrusion molds 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
して製造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 continuously manufacture a plurality of types of long moldings having different cross-sectional shapes in a simple operation and in a short time by using one extrusion mold to solve the above-mentioned problems. It is to propose a molding method which can be performed.
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
ィングの共通部を一部被覆した状態で形成する共通部押
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、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
し、前記第1または第2のモールディングを製造する工
程の一部の段階において、前記共通部を被覆する被覆部
を切除して、第3または第4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。This invention, in a method of manufacturing a plurality of types of long moldings having different cross-sectional shapes, a common portion extrusion hole formed in a state of partially covering the common portion of each molding, and the addition portion of each molding. A resin is supplied from an extruder to an extrusion mold having one or more additional portion extrusion holes to be formed in close proximity to each other, and the resin is extruded synchronously from each extrusion hole, and the extruded common portion and additional portion are in a softened state. Occasionally, the first molding is manufactured in a state of being joined or separated, and after the production of the first molding reaches a predetermined amount, the extruded common portion and the additional portion are kept in a state of being separated or joined. In some steps of the process of manufacturing the second molding and manufacturing the first or second molding, the coating part that covers the common part is cut off to remove the third or third molding. A method for producing a molding, characterized in that to produce a fourth molding.
被覆部としては、例えば共通部に埋設された装飾部材
を被覆するものがあげられる。共通部押出孔および付加
部押出孔に樹脂を供給する押出機は同一のものでも別の
ものでもよい。As the covering portion, for example, one covering the decorative member embedded in the common portion can be cited. The extruders for supplying the resin to the common-portion extrusion holes and the additional-portion extrusion holes may be the same or different.
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く、この場
合、第1または第2のモールディングを製造する工程に
おける前の段階で被覆部を切除して第3または第4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、別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。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。In manufacturing the molding, the order of joining and separating the common part and the additional part is arbitrary, but after manufacturing the first molding while keeping the common part and the additional part bonded, the common part and the additional part are added. It is preferable to manufacture the second molding while keeping the parts separated, and in this case, the covering part is cut off to remove the third or fourth molding at a step before the step of manufacturing the first or second molding. It is preferable to manufacture the molding. Alternatively, a plurality of additional portion extrusion holes may be provided, and switching may be performed so that another additional portion is selectively combined and joined. It is preferable that the additional portion is joined from the lower side upward so that the additional portion falls by its own weight at the time of separation and separates. Further, it is preferable to cut the additional portion at the time of starting the joining or separation of the additional portion, because the additional portion immediately joins and separates, 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、家庭電器製品の飾り条、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。As the molding to be manufactured in the present invention, in addition to moldings for vehicles such as window moldings and side moldings, fittings such as sashes for construction, ornaments for home appliances, trim edges of furniture, etc.
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、共通部押出孔と付加部押出孔とを有する押
出成形型に、同一または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、押出された被覆部を
有する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。そ
して、上記第1または第2のモールディングの製造工程
の一部の段階において、共通部の被覆部を切除し、第3
または第4のモールディングを製造する。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 producing a molding of the present invention, when producing a plurality of types of long moldings having different cross-sectional shapes, the same or different extrusion is performed in an extrusion mold having a common part extrusion hole and an additional part extrusion hole. The resin is supplied from the machine and synchronously extruded from each extrusion hole. The common part and the additional part having the extruded covering part are joined in a softened state in the vicinity of the outlet, or the first molding while keeping the separated state. To manufacture. After the production of the first molding reaches a predetermined amount, the second molding is produced while keeping the extruded common part and the additional part separated or joined. Then, at some stage of the manufacturing process of the first or second molding, the covering portion of the common portion is cut off,
Alternatively, the fourth molding is manufactured. The additional portion extruded in the separated state is recovered and used again.
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16図ないし第20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
図および第6図は第2図のE−E断面図、第7図および
第8図は第3図のF−F断面図、第9図は第6図および
第8図の部分拡大図、第10図は第5図のH−H断面図、
第11図は第6図のI−I断面図、第12図は第3図のG部
拡大図、第13図はそのJ方向斜視図であり、第2図は第
5図のH−K断面を示し、第3図は第7図のL−L断面
を示し、第15図ないし第25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. FIG. 1 is a schematic system diagram showing a manufacturing method of an embodiment for manufacturing the molding shown in FIGS. 16 to 20, FIG. 2 is a sectional view of an essential part showing a joined state, and FIG. 3 is an essential part showing a separated state. Sectional view, FIG. 4 is a sectional view taken along line DD of FIG. 2 and FIG.
FIG. 6 and FIG. 6 are EE sectional views of FIG. 2, FIG. 7 and FIG. 8 are FF sectional views of FIG. 3, and FIG. 9 is a partially enlarged view of FIG. 6 and FIG. FIG. 10 is a sectional view taken along line HH of FIG.
FIG. 11 is a sectional view taken along the line I--I of FIG. 6, FIG. 12 is an enlarged view of a portion G of FIG. 3, FIG. 13 is a perspective view thereof in the J direction, and FIG. 2 is HK of FIG. FIG. 3 shows a section taken along the line L--L in FIG. 7, and the same reference numerals as those in FIGS. 15 to 25 designate 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、装飾フイルム12が
被覆部12aで被覆された状態で形成する共通部押出孔2
9、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、平潤な表面を有しか
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 forms a common portion 14 of the molding 20 with the decorative film 12 covered with the coating portion 12a.
9, and has an additional portion extrusion hole 30 forming the additional portion 15,
Separate extruders 22, 22a through 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, and has a flat surface and the resin of the additional portion 15 does not adhere thereto.
また被覆部12aを切除するように、被覆部12aに対向し
て切除部材60が設けられている。切除部材60は被覆部12
aの両端部に当接して切断する2枚の平行な回転カッタ
ー61が流体圧シリンダ62により往復動するようになって
いる。A cutting member 60 is provided so as to face the covering portion 12a so as to cut the covering portion 12a. The cutting member 60 is the covering portion 12
Two parallel rotary cutters 61 that come into contact with both ends of a and cut are reciprocated by a fluid pressure cylinder 62.
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から装飾フイルム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。装飾フイルム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)
The resin raw material is supplied from the supply pipe 41 to the extruder 22 via the hopper 42, and the raw material resin of the addition section 15 is supplied from the supply pipe 41a to the extruder 22a via the hopper 42a, where the molten resin
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. Although the decorative film 12 and the core material 13 are supplied to different positions, they are shown by a single line for simplification.
モールディング20を形成する樹脂43、43aとしては、A
BS樹脂、アクリロニトリル樹脂、塩化ビニル樹脂、メチ
ルメタクリレート樹脂、アイオノマー樹脂等が使用でき
る。装飾フイルム12としては、外表面側に形成されたモ
ールディング本体5aの被覆部12aとの接着性の悪い(離
型性のよい)透明なフッ素樹脂フイルムと、裏面に形成
されたモールディング本体5aとの溶着が可能な相溶性の
ある樹脂シートとの間に、着色樹脂シート、金属蒸着層
などを積層したものが好ましい。The resin 43, 43a forming the molding 20 is A
BS resin, acrylonitrile resin, vinyl chloride resin, methyl methacrylate resin, ionomer resin, etc. can be used. As the decorative film 12, a transparent fluororesin film having poor adhesion (good releasability) with the covering portion 12a of the molding body 5a formed on the outer surface side, and a molding body 5a formed on the back surface It is preferable that a colored resin sheet, a metal vapor deposition layer, and the like are laminated between the resin sheet having compatibility and being capable of being welded.
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
ぞれ被覆部12aを有する共通部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43,43a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 respectively sent from different resin flow paths 31 and 31a to the common part extrusion hole 29 and the addition part extrusion hole 30 and extruded, respectively coated. The common portion 14 having the portion 12a and the additional portion 15 are formed in a separated state. At the start of extrusion molding, as shown in FIG. 3, while the joining member 33 is retracted, the resins 43 and 43a are extruded and a test run is performed, and the addition portion 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、第16図の
共通部14と付加部15が接合し、装飾フイルム12が露出し
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、また流
体圧シリンダ62により回転カッター61を前進させ、被覆
部12aに装飾フイルム12の外表面にまで達する連続した
切目を設けてこれを切除する。この場合切断刃37の上昇
によって付加部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。また被覆部12aの幅方向の切断
は、切除部材60に付属する切断刃により回転カッター61
の前進、後退に同期して行われるようになっているが、
図示は省略されている。When the common part 14 and the additional part 15 are extruded in a stable state with accurate dimensions, the first step is to join the common part 14 and the additional part 15 shown in FIG. 16 to expose the decorative film 12 to the molding. In order to manufacture 20 (in the embodiment, the side portion 8 of the window molding 5), as shown in FIG. 2 and FIG.
33 is moved forward, the additional portion 15 is joined to the common portion 14, and the rotary cutter 61 is moved forward by the fluid pressure cylinder 62, and a continuous cut reaching the outer surface of the decorative film 12 is formed in the covering portion 12a. To remove. In this case, the additional portion 15 is cut by the rise of the cutting blade 37, the additional portion 15 extruded before cutting naturally falls by its own weight, and the additional portion 15 extruded after cutting is the sliding groove 35 of the pedestal 36. And is welded to the common portion 14 as the pedestal 36 rises. At this time, the common portion 14 is supported from above by the guide 32, and deformation is prevented. Further, the cutting of the covering portion 12a in the width direction is performed by the rotary cutter 61 by the cutting blade attached to the cutting member 60.
It is supposed to be done in synchronization with the forward and backward movement of
Illustration is omitted.
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
が接合しかつ被覆部12aが切除された押出成形材23が得
られる。その後冷却槽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
で所定の長さに切断され、第17図のモールディング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, the joined state is maintained, the two are joined, and the extruded material 23 with the covering portion 12a cut off is obtained. After that, it is cooled in the cooling tank 24 and solidifies, and the take-up machine 25
And the cutting machine 26 while detecting the position with the sensor 47.
It is cut to length with the molding 20 shown in Fig. 17.
(Side part 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工程による第17図のモールディング20の製造が予
定量に達した後、第6図に示すように流体圧シリンダ62
により回転カッター61を後退させ、被覆部12aを切除し
ない状態で共通部14と付加部15を接合し、第20図に相当
する形状のモールディング20(サイド部8)を製造す
る。After the production of the molding 20 shown in FIG. 17 by the first step reaches the planned amount, as shown in FIG.
Thus, the rotary cutter 61 is retracted, the common portion 14 and the additional portion 15 are joined together without cutting off the covering portion 12a, and the molding 20 (side portion 8) having a shape corresponding to FIG. 20 is manufactured.
第1、2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3工程として付加部
15が接合しない第16図のモールディング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7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、また流体圧シリンダ62により
回転カッター61を前進させ、被覆部12aを切除する。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43aの供給を停止し
てもよいが、後に接合を再開する必要があるような場合
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42aに返送さ
れる。こうして被覆部12aを切除した共通部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
が接合しない第16図のモールディング20(アッパー部
7)が製造される。After the production of the molding 20 in which the additional portion 15 is joined in the first and second steps reaches the planned amount, the additional portion is added as the third step.
In order to manufacture the molding 20 of FIG. 16 (the upper portion 7 of the window molding 5 in the embodiment) in which 15 is not joined, the joining member 33 is retracted by the fluid pressure cylinder 34 as shown in FIGS. 3 and 7. The additional portion 15 is dropped while keeping it separated, and the rotary cutter 61 is advanced by the fluid pressure cylinder 62 to cut off the covering portion 12a. In this case, the additional portion 15 is cut by the lowering of the cutting blade 37, and the additional portion 15 extruded after the cutting falls along the sliding groove 35 by its own weight. Here, the supply of the resin 43a by the extruder 22a may be stopped, but when it is necessary to restart the joining later, the extrusion can be continued as it is. In this case, the addition unit 15 is recovered from the recovery machine 45 and returned to the hopper 42a. In this way, the extruded material 23 including only the common portion 14 obtained by cutting off the covering portion 12a is obtained, and the additional portion 15 is formed in the same manner as described above.
The molding 20 (upper part 7) of FIG.
その後第4工程として、前回と同様に切除部材60を後
退させることにより、付加部15が接合せず、かつ被覆部
12aを切除しない、第19図に相当するモールディング20
(アッパー部7)が製造される。After that, as the fourth step, by retreating the cutting member 60 as in the previous time, the additional portion 15 is not joined and the covering portion is not joined.
Molding 20 corresponding to FIG. 19 without cutting off 12a
(Upper part 7) is manufactured.
以上の説明において、第2、4工程では装飾フイルム
12は不要であるが、これを省略すると正常な形状を維持
できないことがあるので、装飾フイルム12と同形状で、
モールディング本体5aとの溶着性のよい安価な樹脂フイ
ルムを装飾フイルムの代りに供給して埋設するのが好ま
しい。この場合、両フイルムの切換の際には、両フイル
ムの端部を接続テープで接続して供給することができ
る。In the above description, the decorative film is used in the second and fourth steps.
12 is unnecessary, but if you omit it, it may not be possible to maintain a normal shape, so it is the same shape as the decorative film 12,
It is preferable that an inexpensive resin film having a good weldability with the molding body 5a is supplied and embedded instead of the decorative film. In this case, when switching between both films, the ends of both films can be connected by a connecting tape and supplied.
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。The resin 43 forming the common portion 14 and the resin 43a forming the additional portion 15 may be the same or different, and those having different color tones, transparency and hardness can 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.
上記実施例では別の押出機22、22aから押出成形型21
の共通部押出孔29および付加部押出孔30に樹脂を供給す
るようにしたが、同一の押出機から樹脂流路を押出成形
型21内で分岐させて供給してもよい。また共通部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
1〜2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、その後第3〜4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)を製造した方が、押出成形性が安定して好ま
しいが、逆でもよい。In the above embodiment, the extrusion mold 21 is fed from another extruder 22, 22a.
Although the resin is supplied to the common-portion extrusion hole 29 and the additional-portion extrusion hole 30, the resin flow path may be branched from the same extruder and supplied in the extrusion molding die 21. Further, although the test run is performed in a state where the common portion 14 and the additional portion 15 are separated from each other, the test run may be performed in a state where both are joined. In addition, in the first and second steps, the molding 20 (side section 8) in which the common section 14 and the additional section 15 are joined is manufactured, and in the third to fourth steps, the molding 20 (upper section 7) in which the additional section 15 is not joined is manufactured. This is preferable because the extrusion moldability is stable, but it may be reversed.
さらに接合部材33、切除部材60の駆動源としては、流
体圧シリンダに代えてボール駆動等により往復動させて
もよい。Further, as a drive source for the joining member 33 and the cutting member 60, reciprocation may be performed by ball drive or the like instead of the fluid pressure cylinder.
第21図ないし第24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。The side molding 6 shown in FIGS. 21 to 24 is 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14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. 14 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
押出孔に押出機から樹脂を供給して押出し、押出された
被覆部を有する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
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し、前記第1または第2のモール
ディングを製造する工程の一部の段階において、前記共
通部を被覆する被覆部を切除して、第3または第4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り、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, a resin is supplied from an extruder to the common part extrusion hole and the additional part extrusion hole of the extrusion mold and extruded, and the common part having the extruded covering part and the additional part are joined or separated. The first molding is manufactured to reach a predetermined amount, and the second common molding is manufactured by keeping the extruded common part and the additional part separated or joined. At some stages of the process of manufacturing the first or second molding, the coating part that covers the common part is cut off to manufacture the third or fourth molding, so that one extrusion is performed. Multiple types of moldings with different cross-sectional shapes can be continuously and efficiently manufactured using a molding die, eliminating the need to replace the extrusion die and the accompanying test run. There is reduced, it is shortened manufacturing 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図および第6図は第2図のE−E断面図、第7
図および第8図は第3図のF−F断面図、第9図は第6
図および第8図の部分拡大図、第10図は第5図のH−H
断面図、第11図は第6図のI−I断面図、第12図は第3
図のG部拡大図、第13図はそのJ方向斜視図、第14図は
他の実施例の接合部材の断面図、第15図は車体の斜視
図、第16図および第19図は従来のウインドウモールディ
ングを示す第15図のA−A断面図、第17図および第20図
はB−B断面図、第18図はC−C部拡大図、第21図ない
し第24図は従来のサイドモールディングを示す斜視図、
第25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、12は装飾フイルム、12aは被
覆部、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、60は切除部材である。FIG. 1 is a schematic system diagram showing a manufacturing method of an embodiment, FIG. 2 is a cross-sectional view of an essential part showing a joined state, FIG. 3 is a cross-sectional view of an essential part showing a separated state, and FIG. 3 is a sectional view taken along line DD of FIG. 3, FIGS. 5 and 6 are sectional views taken along line EE of FIG. 2, and FIG.
8 and 9 are sectional views taken along line FF in FIG. 3, and FIG.
Fig. 8 and Fig. 8 are partially enlarged views, and Fig. 10 is HH of Fig. 5.
A sectional view, FIG. 11 is a sectional view taken along the line II of FIG. 6, and FIG. 12 is a sectional view of FIG.
FIG. 13 is an enlarged view of part G in FIG. 13, FIG. 13 is a perspective view of the same in the J direction, FIG. 14 is a cross-sectional view of a joining member of another embodiment, FIG. 15 is a perspective view of a vehicle body, and FIGS. 15 is a sectional view taken along the line AA of FIG. 15, showing a window molding of FIG. 17, FIG. 17 and FIG. 20 is a sectional view taken along the line BB of FIG. 18, FIG. 18 is an enlarged view of a portion CC, and FIGS. A perspective view showing the side molding,
FIG. 25 is a system diagram showing a conventional molding manufacturing method. In the drawings, the same reference numerals indicate the same or corresponding parts, and 5,
6, 20 are moldings, 12 is a decorative film, 12a is a covering part, 14 is a common part, 15 is an adding 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, 33 is a joining member, and 60 is a cutting member. is there.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−112138(JP,A) 特開 昭61−44617(JP,A) 特開 昭53−132061(JP,A) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 63-112138 (JP, A) JP 61-44617 (JP, A) JP 53-132061 (JP, A)
Claims (4)
モールディングを製造する方法において、各モールディ
ングの共通部を一部被覆した状態で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、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
し、前記第1または第2のモールディングを製造する工
程の一部の段階において、前記共通部を被覆する被覆部
を切除して、第3または第4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 elongated moldings having different cross-sectional shapes, wherein a common portion extrusion hole formed by partially covering a common portion of each molding and an addition portion of each molding. Forming 1
The resin is supplied from the extruder to the extrusion mold that has the above-mentioned additional portion extrusion holes in close proximity, and the resin is extruded synchronously from each extrusion hole, and the extruded common portion and additional portion are joined when in a softened state. Alternatively, the first molding is manufactured in a separated state, and after the manufacturing of the first molding reaches a predetermined amount, the second common molding is maintained in a state in which the extruded common part and the additional part are separated or joined. And a third or a fourth molding is manufactured by cutting off a coating part that covers the common part in a part of the step of manufacturing the first or the second molding. Molding manufacturing method.
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し、かつ第1また
は第2のモールディングを製造する工程における前の段
階で被覆部を切除して第3または第4のモールディング
を製造する請求項1記載の方法。2. A first molding is manufactured by joining a common part and an additional part to manufacture a first molding, and then manufacturing a second molding while keeping the common part and the additional part separated. 2. The method according to claim 1, wherein the third or fourth molding is manufactured by cutting off the coating portion at a step before the step of manufacturing the molding.
のである請求項1または2記載の方法。3. The method according to claim 1, wherein the covering portion covers the embedded decorative member.
供給する押出機は同一または別のものである請求項1な
いし3のいずれかに記載の方法。4. The method according to claim 1, wherein the extruders for supplying the resin to the common-portion extrusion holes and the additional-portion extrusion holes are the same or different.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63047090A JP2560394B2 (en) | 1988-02-29 | 1988-02-29 | Molding manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63047090A JP2560394B2 (en) | 1988-02-29 | 1988-02-29 | Molding manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01221218A JPH01221218A (en) | 1989-09-04 |
JP2560394B2 true JP2560394B2 (en) | 1996-12-04 |
Family
ID=12765485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63047090A Expired - Fee Related JP2560394B2 (en) | 1988-02-29 | 1988-02-29 | Molding manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2560394B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061335A (en) * | 1989-09-25 | 1991-10-29 | Hashimoto Forming Industry Co., Ltd. | Method of, and apparatus for manufacturing elongate plastic articles |
JP6257343B2 (en) * | 2014-01-17 | 2018-01-10 | シロキ工業株式会社 | Molding manufacturing method |
JP2016155323A (en) * | 2015-02-25 | 2016-09-01 | トキワケミカル工業株式会社 | Manufacturing method of extrusion molded article having core material |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63112138A (en) * | 1986-10-30 | 1988-05-17 | Toyoda Gosei Co Ltd | Method and apparatus for producing rubber extrusion |
-
1988
- 1988-02-29 JP JP63047090A patent/JP2560394B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH01221218A (en) | 1989-09-04 |
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