JPH03297619A - Manufacture of rain gutter - Google Patents
Manufacture of rain gutterInfo
- Publication number
- JPH03297619A JPH03297619A JP2101164A JP10116490A JPH03297619A JP H03297619 A JPH03297619 A JP H03297619A JP 2101164 A JP2101164 A JP 2101164A JP 10116490 A JP10116490 A JP 10116490A JP H03297619 A JPH03297619 A JP H03297619A
- Authority
- JP
- Japan
- Prior art keywords
- gutter
- thermoplastic resin
- cylindrical
- core material
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000011162 core material Substances 0.000 claims description 42
- 229920005992 thermoplastic resin Polymers 0.000 claims description 41
- 230000003014 reinforcing effect Effects 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 10
- 229920005989 resin Polymers 0.000 description 25
- 239000011347 resin Substances 0.000 description 25
- 238000010438 heat treatment Methods 0.000 description 10
- 210000005069 ears Anatomy 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 8
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、熱伸縮や剛性が改善された軒樋の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing eaves gutters with improved thermal expansion and contraction and rigidity.
（従来の技術）
補強芯材で補強された熱可塑性樹脂製の軒樋は知られて
いる。この種の軒樋は一般に樋本体部と筒状の樋耳部と
からなり、樋本体部と筒状の樋耳部との補強芯材の表面
に熱可塑性樹脂が押出被覆されて構成されている。(Prior Art) Eaves gutters made of thermoplastic resin reinforced with a reinforcing core material are known. This type of eaves gutter generally consists of a gutter body and a cylindrical gutter ear, and the surfaces of the reinforcing core material of the gutter body and the cylindrical gutter ear are extruded and coated with thermoplastic resin. There is.
そして、このような構成の軒樋においては、筒状の軒耳
部の補強芯材の内側に熱可塑性樹脂を均一に押出被覆す
るのは困難である。そのため、筒状の軒耳部の内側には
一般に熱可塑性樹脂は押出被覆されていない。筒状の軒
耳部の補強芯材の内側に熱可塑性樹脂が被覆されている
場合でも、その厚さは不均一である（例えば、実開昭５
９−６３１３７号公報参照）。In the eaves gutter having such a configuration, it is difficult to uniformly extrude and coat the inside of the reinforcing core material of the cylindrical eaves edge with thermoplastic resin. Therefore, the inside of the cylindrical eaves is generally not coated with thermoplastic resin by extrusion. Even when the inner side of the reinforcing core material of the cylindrical eave sill is coated with thermoplastic resin, the thickness is uneven (for example,
(See Publication No. 9-63137).
（発明が解決しようとする課題）
上記のような補強芯材で補強された熱可塑性樹脂製の軒
樋は、全体として熱伸縮や剛性が改善されている。しか
し、筒状の樋耳部の内側には熱可塑性樹脂が被覆されて
いないか、或いは被覆されていても厚さが不均一なため
、軒樋が直射日光に晒されて高温になると、筒状の樋耳
部が変形して樋耳部の機能が充分に発揮されないという
問題がある。(Problems to be Solved by the Invention) The thermoplastic resin eaves gutter reinforced with the reinforcing core material as described above has improved thermal expansion/contraction and rigidity as a whole. However, the inside of the cylindrical gutter ears is not coated with thermoplastic resin, or even if it is coated, the thickness is uneven, so if the eaves gutter is exposed to direct sunlight and becomes hot, the cylindrical There is a problem in that the shaped gutter ears are deformed and the functions of the gutter ears are not fully demonstrated.
本発明は、上記の問題を解決するものであり、その目的
とするところは、筒状の樋耳部の補強芯材の内側にも均
一に熱可塑性樹脂層を形成し、樋耳部の変形を防止し得
る軒樋の製造方法を提供することにある。The present invention solves the above problems, and its purpose is to uniformly form a thermoplastic resin layer inside the reinforcing core material of the cylindrical gutter ear to prevent deformation of the gutter ear. An object of the present invention is to provide a method for manufacturing eaves gutters that can prevent the above.
（課題を解決するための手段）
本発明の軒樋の製造方法は、補強芯材を筒状の樋耳部を
有する軒樋状に賦形し、これを押出機のクロスヘッド金
型に導入して補強芯材の表面に熱可塑性樹脂を押出被覆
するとともに、上記クロスヘッド金型内における筒状の
樋耳部の内側に細長いコアー状金型を挿入し、このコア
ー状金型に別の押出機から熱可塑性樹脂を供給すること
により、筒状の樋耳部の内側に熱可塑性樹脂層を形成す
ることを特徴とする。(Means for Solving the Problems) The method for manufacturing an eaves gutter of the present invention involves shaping a reinforcing core material into the shape of an eaves gutter having a cylindrical gutter ear portion, and introducing this into a crosshead mold of an extruder. Then, a thermoplastic resin is extruded and coated on the surface of the reinforcing core material, and an elongated core-shaped mold is inserted inside the cylindrical gutter part in the crosshead mold, and another core-shaped mold is inserted into this core-shaped mold. It is characterized in that a thermoplastic resin layer is formed inside the cylindrical gutter selvedge by supplying thermoplastic resin from an extruder.
以下、図面を参照しながら、本発明方法を詳細に説明す
る。Hereinafter, the method of the present invention will be explained in detail with reference to the drawings.
第１図は本発明方法の一例を示す概略図、第２図は第１
図に示すクロスヘッド金型の横断面図、第３図は第２図
のＸ−Ｘ断面図である。Fig. 1 is a schematic diagram showing an example of the method of the present invention, and Fig. 2 is a schematic diagram showing an example of the method of the present invention.
A cross-sectional view of the crosshead mold shown in the figure, and FIG. 3 is a cross-sectional view taken along line XX in FIG. 2.
第１図において、１０は補強芯材であって、この補強芯
材１０は、ガラス繊維などの多数のロービング、不織布
、織布、ネット等に、塩化ビニル樹脂や不飽和ポリエス
テル樹脂などの合成樹脂を含浸させて作られている。In FIG. 1, 10 is a reinforcing core material, and this reinforcing core material 10 is made of synthetic resin such as vinyl chloride resin or unsaturated polyester resin, and is made of a large number of rovings such as glass fiber, nonwoven fabric, woven fabric, net, etc. It is made by impregnating it with
先ず、補強芯材ｌＯは加熱炉２０に通され、ここで補強
芯材１０が軟化する程度に加熱され、引続いて賦形用の
上型と下型、或いは多数の賦形用のローラーにより構成
された加熱フォーミング装置３０に通され、ここで樋本
体部と樋耳部とからなる軒樋状に賦形される。この場合
、軒耳部の補強芯材は四角や丸形などのループ型の筒状
に形成され、その終縁部の補強芯材は樋本体部の補強芯
材に単に重ね合わされるが、或いは積層接着される。First, the reinforcing core material 1O is passed through a heating furnace 20, where it is heated to an extent that the reinforcing core material 10 is softened, and then it is heated using an upper mold and a lower mold for shaping, or a large number of rollers for shaping. It is passed through the configured heating forming device 30, where it is shaped into an eave gutter shape consisting of a gutter body and a gutter ear. In this case, the reinforcing core material of the eaves sill is formed into a loop-shaped tube such as square or round, and the reinforcing core material at the end of the reinforcing core material is simply overlapped with the reinforcing core material of the gutter body, or Laminated and glued.
次いで、軒樋状に賦形された補強芯材１ｏは、押出機４
１のクロスヘッド金型４ｏに導入され、そこで樋本体部
と筒状の樋耳部とからなる軒樋状の補強芯材１０の表面
に熱可塑性樹脂が押出被覆される。この表面に被覆され
る熱可塑性樹脂と３
しては、塩化ビニル樹脂やアクリル樹脂などの耐候性の
良い樹脂が好適に用いられる。Next, the reinforcing core material 1o shaped into an eave gutter shape is passed through an extruder 4.
1 into a crosshead mold 4o, where a thermoplastic resin is extruded and coated on the surface of a reinforcing core material 10 in the shape of an eaves gutter, which is made up of a gutter main body and a cylindrical gutter ear. As the thermoplastic resin to be coated on the surface, a resin with good weather resistance such as vinyl chloride resin or acrylic resin is preferably used.
クロスヘッド金型４０は、第２図に示すように軒樋状の
スリットを有し、このスリットから補強芯材１０の表面
に熱可塑性樹脂が被覆された軒樋１００の半製品が導出
される。クロスヘッド金型４０のランド部の長さは、押
出温度、押出速度、使用樹脂等により適宜定められ、そ
のスリットの間隙も所望の軒樋形状に設計される。The crosshead mold 40 has a slit shaped like an eave gutter, as shown in FIG. 2, and a semi-finished product of the eave gutter 100, in which the surface of the reinforcing core material 10 is coated with thermoplastic resin, is led out from this slit. . The length of the land portion of the crosshead mold 40 is appropriately determined depending on the extrusion temperature, extrusion speed, resin used, etc., and the gap between the slits is also designed to have a desired eave gutter shape.
しかして、加熱フォーミング装置３０により補強芯材１
０を軒樋状に賦形する際に、第１図及び第３図に示すよ
うに加熱フォーミング装置３０の一部を経てクロスヘッ
ド金型４０内の筒状の樋耳部内側へと細長いコアー状金
型５０を挿入しておく。なお、４１はクロスヘッド金型
４０の樹脂通路であり、この樹脂通路４１から熱可塑性
樹脂が押出され、それにより樋本体部と筒状の樋耳部と
からなる軒樋状の補強芯材１０の表面に、前述のように
熱可塑性樹脂が押出被覆される。The reinforcing core material 1 is then heated by the heating forming device 30.
0 into an eaves gutter shape, the elongated core is passed through a part of the heating forming device 30 to the inside of the cylindrical gutter ear part in the crosshead mold 40, as shown in FIGS. 1 and 3. A shaped mold 50 is inserted in advance. In addition, 41 is a resin passage of the crosshead mold 40, and the thermoplastic resin is extruded from this resin passage 41, thereby forming the eave gutter-shaped reinforcing core material 10 consisting of the gutter body and the cylindrical gutter ear. The surface is extrusion coated with a thermoplastic resin as described above.
細長いコアー状金型５０は、別の押出機５１に付設され
ている。この細長いコアー状金型５０は、第３図に詳細
を示すように樹脂通路５２を有し、その先端部には環状
スリット５２゛ が形成されている。なお、５０’ は
環状スリット５２”を形成するために設けられた先端補
助コアーである。The elongated core mold 50 is attached to another extruder 51. This elongated core-shaped mold 50 has a resin passage 52, as shown in detail in FIG. 3, and an annular slit 52' is formed at its tip. Note that 50' is a tip auxiliary core provided to form an annular slit 52''.
そして、別の押出機５１から細長いコアー状金型５０へ
熱可塑性樹脂が供給される。この熱可塑性樹脂は補強芯
材１０の表面に押出被覆される熱可塑性樹脂と同じ樹脂
でもよいが、補強芯材１０の表面に押出被覆される熱可
塑性樹脂とは異なり、耐熱性や剛性の高い補強用の熱可
塑性樹脂を用いるのが好ましい。Then, thermoplastic resin is supplied from another extruder 51 to the elongated core-shaped mold 50. This thermoplastic resin may be the same resin as the thermoplastic resin that is extruded and coated on the surface of the reinforcing core material 10, but unlike the thermoplastic resin that is extruded and coated on the surface of the reinforcing core material 10, it has high heat resistance and rigidity. Preferably, a reinforcing thermoplastic resin is used.
耐熱性や剛性の高い補強用の熱可塑性樹脂としては、塩
素化塩化ビニル樹脂、ポリカーボネート樹脂、ポリアミ
ド樹脂、ポリエステル樹脂、或いはポリフェニレンサル
ファイド樹脂のようなエンジニアリング樹脂等が好適で
ある。As the reinforcing thermoplastic resin with high heat resistance and rigidity, engineering resins such as chlorinated vinyl chloride resin, polycarbonate resin, polyamide resin, polyester resin, or polyphenylene sulfide resin are suitable.
別の押出機５１から供給された熱可塑性樹脂は、樹脂通
路５２からその先端部の環状スリット５２゛へと押出さ
れ、そこで筒状の樋耳部の補強芯材１０（第３図に点線
で示している）の内側に被覆される。このようにして、
筒状の樋耳部の内側に熱可塑性樹脂層が形成される。The thermoplastic resin supplied from another extruder 51 is extruded from the resin passage 52 to the annular slit 52' at the tip thereof, where the reinforcing core material 10 of the cylindrical gutter ear (indicated by dotted lines in FIG. 3) is extruded. (shown) is coated on the inside. In this way,
A thermoplastic resin layer is formed inside the cylindrical gutter ear.
筒状の樋耳部の内側の熱可塑性樹脂層は、筒状の樋耳部
の内側に被覆され筒状の中空部を残すように形成される
ほか、筒状の樋耳部の内側に全体に充満されるように形
成することもできる。筒状の樋耳部の内側に全体に充満
されるように熱可塑性樹脂層を形成する場合は、細長い
コアー状金型５０の先端補助コアー５０゛ は取除いて
押し出す。The thermoplastic resin layer on the inside of the cylindrical gutter ear is formed so as to cover the inside of the cylindrical gutter ear and leave a cylindrical hollow part, and the thermoplastic resin layer is coated on the inside of the cylindrical gutter ear to leave a cylindrical hollow part. It can also be formed to be filled with. When forming a thermoplastic resin layer so as to completely fill the inside of the cylindrical gutter ear, the tip auxiliary core 50' of the elongated core-shaped mold 50 is removed and extruded.
軒樋状の補強芯材１０の表面及び筒状の樋耳部の内側に
熱可塑性樹脂が押出被覆されてなる軒樋１００の半製品
は、クロスヘッド金型４０のスリットから導出され、引
き続いて冷却金型等からなるサイジング装置６０に通さ
れ、そこで表面仕上げが行われ冷却される。その後、カ
タピラ代引張機等の引張装置７０で引取られ、切断機８
０で一定の長さに裁断して軒樋１００が製造される。A semi-finished product of the eaves gutter 100, in which the surface of the eaves gutter-shaped reinforcing core material 10 and the inside of the cylindrical gutter ear part are extruded and coated with thermoplastic resin, is led out from the slit of the crosshead mold 40, and then It is passed through a sizing device 60 consisting of a cooling mold or the like, where it is surface-finished and cooled. Thereafter, it is taken up by a tensioning device 70 such as a catapillar tensioning machine, and the cutting machine 8
The eaves gutter 100 is manufactured by cutting it to a certain length at 0.
なお、補強芯材１０の表面に被覆される熱可塑性樹脂や
筒状の樋耳部の内側に形成される熱可塑性樹脂層の接着
性が悪い場合は、補強芯材１０の両面に接着剤を塗布し
ておく。In addition, if the adhesiveness of the thermoplastic resin coated on the surface of the reinforcing core material 10 or the thermoplastic resin layer formed inside the cylindrical gutter part is poor, apply adhesive to both sides of the reinforcing core material 10. Apply it.
（作用）
補強芯材を筒状の樋耳部を有する軒樋状に賦形し、これ
を押出機のクロスヘッド金型に導入して補強芯材の表面
に熱可塑性樹脂を押出被覆する際に、クロスヘッド金型
内の筒状の樋耳部の内側に細長いコアー状金型を挿入し
、このコアー状金型に別の押出機から熱可塑性樹脂を供
給すると、この樹脂の押出条件を表面被覆用の樹脂の押
出条件とは個別に設定することができ、しかもこの熱可
塑性樹脂が筒状の樋耳部の内側とコアー状金型との間で
潤滑の役割をなし、それにより筒状の樋耳部の内側に均
−且つ容易に熱可塑性樹脂層を形成することができる。(Function) When the reinforcing core material is shaped into the shape of an eaves gutter having cylindrical gutter ears, this is introduced into the crosshead mold of the extruder, and the surface of the reinforcing core material is extruded and coated with thermoplastic resin. An elongated core-shaped mold is inserted inside the cylindrical gutter ear in the crosshead mold, and a thermoplastic resin is supplied from another extruder to this core-shaped mold, and the extrusion conditions for this resin are adjusted. The extrusion conditions for the surface coating resin can be set separately, and this thermoplastic resin acts as a lubricant between the inside of the cylindrical gutter and the core mold, thereby making the cylindrical A thermoplastic resin layer can be evenly and easily formed inside the shaped gutter selvage.
また、補強芯材の表面に被覆される熱可塑性樹脂と異な
る補強用の熱可塑性樹脂層を、筒状の樋耳部の内側に形
成することが可能となり、この補強用の熱可塑性樹脂層
により筒状の樋耳部をより一層強化することができる。In addition, it is possible to form a reinforcing thermoplastic resin layer on the inside of the cylindrical gutter ear, which is different from the thermoplastic resin coated on the surface of the reinforcing core material, and this reinforcing thermoplastic resin layer The cylindrical gutter ear portion can be further strengthened.
（実施例） 以下、本発明の実施例を示す。(Example) Examples of the present invention will be shown below.
ス差ｌ↓
先ず、ガラスロービング（＃４４００： 日東紡製）を
長手方向に２０本配列させて流動床に導入し、そこで解
繊しながら圧力空気により吹き上げられて浮遊状態にあ
る塩化ビニル樹脂配合粉（ＴＫ４００：信越化学製）を
流動含浸させ、これを加熱炉に通して１９０°Ｃに加熱
し、引き続いて表面温度２００°Ｃの一対の加熱ピンチ
ロールに通し熱圧着して上記樹脂配合粉を完全に溶融さ
せ、厚さ約０．６ｍｍ、幅３００ｍｍ、ガラスロービン
グ含有量３０容量％のシート状補強芯材を作成した。First, 20 glass rovings (#4400: manufactured by Nittobo) are arranged in the longitudinal direction and introduced into a fluidized bed, where they are defibrated and blown up by pressurized air to form a floating state of vinyl chloride resin. Powder (TK400: manufactured by Shin-Etsu Chemical Co., Ltd.) is fluidized and impregnated, passed through a heating furnace and heated to 190°C, and then passed through a pair of heated pinch rolls with a surface temperature of 200°C and thermocompressed to form the above resin blended powder. was completely melted to create a sheet-shaped reinforcing core material with a thickness of about 0.6 mm, a width of 300 mm, and a glass roving content of 30% by volume.
この補強芯材を加熱炉に通し、８０°Ｃに加熱軟化させ
加熱フォーミング装置により樋本体部と筒状の樋耳部と
からなる軒樋状に賦形成形した後冷却した。引き続いて
、賦形された補強芯材を押出機のクロスヘッド金型に導
入し、この表面に塩化ビニル樹脂配合物を１８５°Ｃで
約０ 、５ｍｍの厚さに溶融押出して被覆した。This reinforcing core material was passed through a heating furnace, heated and softened at 80° C., formed into a gutter shape consisting of a gutter main body and a cylindrical gutter ear using a heating forming device, and then cooled. Subsequently, the shaped reinforcing core material was introduced into a crosshead mold of an extruder, and its surface was coated with a vinyl chloride resin compound by melt extrusion to a thickness of about 0.5 mm at 185°C.
この際、加熱フォーミング装置の一部を経てクロスヘッ
ド金型の筒状の樋耳部の内側に細長いコアー状金型を挿
入し、このコアー状金型に別の押出機から塩素化塩化ビ
ニル樹脂配合物を溶融しながら供給し、筒状の樋耳部の
内側に１８５°Ｃで約１ｆｆｌＩ＋の厚さに押出被覆し
た。At this time, an elongated core-shaped mold is inserted into the cylindrical gutter part of the crosshead mold through a part of the heating forming device, and the chlorinated vinyl chloride resin is inserted into this core-shaped mold from another extruder. The formulation was melt fed and extrusion coated on the inside of a cylindrical trough at 185°C to a thickness of about 1 fflI+.
次いで、サイジング装置により表面仕上げを行い、冷却
して引張機で引き取り、軒樋を製造した。この軒樋にお
いて、筒状の樋耳部の内側の被覆樹脂層は、外側表面の
被覆樹脂層と同様に均一な厚さに被覆されていた。Next, the surface was finished using a sizing device, cooled, and pulled out using a tensioning machine to manufacture eaves gutters. In this eaves gutter, the coating resin layer on the inside of the cylindrical gutter ear was coated with a uniform thickness like the coating resin layer on the outside surface.
この軒樋を４１１１の長さに裁断して試験片とし、これ
を８０°Ｃのオーブン中に５時間放置した後、樋耳部の
変形状態を観察したところ、樋耳部の変形は認められな
かった。This eaves gutter was cut to a length of 4111 mm to make a test piece, and after leaving it in an oven at 80°C for 5 hours, the state of deformation of the gutter ears was observed, and no deformation of the gutter ears was observed. There wasn't.
演ｍ
筒状の樋耳部の内側に、塩素化塩化ビニル樹脂配合物を
１８５℃で充填して軒樋を製造した。Performance: An eaves gutter was manufactured by filling the inside of a cylindrical gutter ear with a chlorinated vinyl chloride resin compound at 185°C.
それ以外は、実施例１と同様に行った。この軒０
樋において、筒状の樋耳部の内側の被覆樹脂層は隙間な
く均一に全体に充填されていた。Other than that, the same procedure as in Example 1 was carried out. In this eave 0 gutter, the coating resin layer inside the cylindrical gutter ear was uniformly filled throughout without any gaps.
この軒樋を４ｍの長さに裁断して試験片とし、これを８
０°Ｃのオーブン中に５時間放置した後、樋耳部の変形
状態を観察したところ、樋耳部の変形は認められなかっ
た。This eaves gutter was cut to a length of 4 m to make a test piece, and this was
After being left in an oven at 0°C for 5 hours, the state of deformation of the gutter ears was observed, and no deformation of the gutter ears was observed.
（発明の効果）
上述の通り、本発明の軒樋の製造方法によれば、補強芯
材の外面と同様に筒状の樋耳部の内側にも均−且つ容易
に熱可曹性樹脂層を形成することができる。(Effects of the Invention) As described above, according to the eaves gutter manufacturing method of the present invention, the thermoplastic resin layer can be uniformly and easily formed on the inside of the cylindrical gutter ear as well as on the outer surface of the reinforcing core material. can be formed.
したがって、本発明により製造される軒樋は、直射日光
に晒される高温環境下で使用しても、被覆樹脂の不均一
に起因する樋耳部の変形が防止され、樋耳部の機能が充
分に発揮される。Therefore, even when the eaves gutter manufactured according to the present invention is used in a high-temperature environment exposed to direct sunlight, the deformation of the gutter ear due to unevenness of the coating resin is prevented, and the gutter ear has sufficient functionality. It is demonstrated in
第１図は本発明方法の一例を示す概略図、第２図は第１
図に示すクロスヘッド金型の横断面図、第３図は第２図
のＸ−Ｘ断面図である。
１０・・・補強芯材、２０・・・加熱炉、３０・・・加
熱フォーミング装置、４０・・・クロスヘッド金型、４
１・・・クロスヘッド金型の樹脂通路、５０・・・細長
いコアー状金型、５２・・・細長いコアー状金型の樹脂
通路、５２′・・・細長いコアー状金型の環状スリット
、６０・・・サイジング装置、７０・・・引取装置。Fig. 1 is a schematic diagram showing an example of the method of the present invention, and Fig. 2 is a schematic diagram showing an example of the method of the present invention.
A cross-sectional view of the crosshead mold shown in the figure, and FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. DESCRIPTION OF SYMBOLS 10... Reinforcement core material, 20... Heating furnace, 30... Heating forming device, 40... Cross head mold, 4
DESCRIPTION OF SYMBOLS 1... Resin passage of crosshead mold, 50... Elongated core-shaped mold, 52... Resin passage of elongated core-shaped mold, 52'... Annular slit of elongated core-shaped mold, 60 ... Sizing device, 70... Taking device.
Claims (1)
これを押出機のクロスヘッド金型に導入して補強芯材の
表面に熱可塑性樹脂を押出被覆するとともに、上記クロ
スヘッド金型内における筒状の樋耳部の内側に細長いコ
ア−状金型を挿入し、このコアー状金型に別の押出機か
ら熱可塑性樹脂を供給することにより、筒状の樋耳部の
内側に熱可塑性樹脂層を形成することを特徴とする軒樋
の製造方法。1. Shape the reinforcing core material into the shape of an eaves gutter having a cylindrical gutter ear,
This is introduced into the crosshead mold of the extruder, and the surface of the reinforcing core material is extruded and coated with thermoplastic resin, and an elongated core-shaped mold is placed inside the cylindrical gutter lugs in the crosshead mold. A method for manufacturing an eaves gutter, characterized by forming a thermoplastic resin layer on the inside of a cylindrical gutter ear by inserting a thermoplastic resin into the core-shaped mold from another extruder. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101164A JP2874951B2 (en) | 1990-04-17 | 1990-04-17 | Eaves gutter manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2101164A JP2874951B2 (en) | 1990-04-17 | 1990-04-17 | Eaves gutter manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03297619A true JPH03297619A (en) | 1991-12-27 |
| JP2874951B2 JP2874951B2 (en) | 1999-03-24 |
Family
ID=14293399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2101164A Expired - Lifetime JP2874951B2 (en) | 1990-04-17 | 1990-04-17 | Eaves gutter manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2874951B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8313801B2 (en) | 2003-11-25 | 2012-11-20 | Magnequench, Inc. | Coating formulation and application of organic passivation layer onto iron-based rare earth powders |
-
1990
- 1990-04-17 JP JP2101164A patent/JP2874951B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8313801B2 (en) | 2003-11-25 | 2012-11-20 | Magnequench, Inc. | Coating formulation and application of organic passivation layer onto iron-based rare earth powders |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2874951B2 (en) | 1999-03-24 |
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