JPH03281321A - Manufacture of mudguard for automobile - Google Patents
Manufacture of mudguard for automobileInfo
- Publication number
- JPH03281321A JPH03281321A JP8534790A JP8534790A JPH03281321A JP H03281321 A JPH03281321 A JP H03281321A JP 8534790 A JP8534790 A JP 8534790A JP 8534790 A JP8534790 A JP 8534790A JP H03281321 A JPH03281321 A JP H03281321A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- mudguard
- molding material
- cavity
- molding
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000012778 molding material Substances 0.000 claims abstract description 20
- 239000003973 paint Substances 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000004040 coloring Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 230000000873 masking effect Effects 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、自動車の車輪後方のフェンダパネルに装着
されるマッドガードの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a method for manufacturing a mudguard that is attached to a fender panel behind the wheels of an automobile.
従来の技術
マッドガード５０は、第４図に示すように、車体のフェ
ンダパネルに取り付けられる取付部５Ｉと、この取付部
５１の外周縁から下方に延びたスカート部５２と、取付
部５１の外周縁から上方に向り十て滝川形成されたフェ
ンダガード部５３とからなる。そして、第５図に示すよ
うに自動車の車輪５４後方のフェンダパネル５５を被う
ように装着される。As shown in FIG. 4, a conventional mudguard 50 includes a mounting portion 5I that is attached to a fender panel of a vehicle body, a skirt portion 52 that extends downward from the outer periphery of the mounting portion 51, and an outer periphery of the mounting portion 51. It consists of a fender guard part 53 formed in a Takigawa shape extending upward from the fender guard part 53. Then, as shown in FIG. 5, it is attached so as to cover the fender panel 55 behind the wheels 54 of the automobile.
ところで、このようなマッドガード５０に対しては、本
来の泥除は機能の他、装飾機能の要求もあるーｆ二とえ
ば、フェンダガート部５３かフェンダパネル５５と一体
に見えるように、車体色と同し色でフェンダガード部５
３のみを着色する場合かｆＮる。By the way, for such a mudguard 50, in addition to its original mudguard function, there is also a demand for a decorative function. Fender guard part 5 in the same color as
If you want to color only 3, fN.
このような場合、射出成形された成形品に対し、次のよ
うな方法でその着色が行われる。In such cases, the injection molded product is colored by the following method.
■成形品の表面を脱脂する。■Degrease the surface of the molded product.
■着色しない部分の表面にマスキングテープを貼り付け
る。■Paste masking tape on the surface of the part that will not be colored.
■着色する表面にプライマ処理を施す。■Apply primer treatment to the surface to be colored.
■着色部に所定色の塗料を塗布する。■Apply paint of the specified color to the colored area.
■乾燥する。■Dry.
■前記マスキングテープを剥がす。■Peel off the masking tape.
発明が解決しようとする課題
しかしながら、上述のような従来の製造方法にあっては
、マッドガード５０の一部を異色に着色する場合、成形
品の１個１個についてマスキングテープの貼り付は作業
等の煩雑な手作業が必要となるため、生産性が非常に悪
い。Problems to be Solved by the Invention However, in the conventional manufacturing method as described above, when a part of the mudguard 50 is colored in a different color, it is difficult to apply masking tape to each molded product. Productivity is very low because it requires complicated manual work.
課題を解決するための手段
この発明に係るマッドガードの製造方法は、上記の問題
を解決するために、マッドガードの製品形状の一部を形
成したキャビティを存する金型に第１の成形材料を注入
し、この金型の少なくとも一部を取り替えて前記製品形
状の残余のキャビティを形成し、次いでこのキャビティ
内に前記第１の成形材料とは異色の第２の成形材料を注
入して成形した後、少なくとも前記第２の成形材料で形
成された部分の表面に無色の光輝性塗料を塗布すること
を特徴とするものである。Means for Solving the Problems In order to solve the above problems, the method for manufacturing a mudguard according to the present invention includes injecting a first molding material into a mold having a cavity that forms a part of the product shape of the mudguard. , replacing at least a part of this mold to form a remaining cavity in the shape of the product, and then injecting a second molding material having a different color from the first molding material into this cavity and performing molding, It is characterized in that a colorless glitter paint is applied to at least the surface of the portion formed of the second molding material.
作用
上記のように、マッドガードの成形段階において製品に
要求される着色を施すことにより、成形後の塗料塗布作
業が簡略化されるとともに、塗料塗布作業の自動化が可
能になる。Function As described above, by applying the required coloring to the product at the stage of molding the mudguard, the paint application work after molding is simplified and the paint application work can be automated.
実施例 以下、この発明の実施例を図面に基づき詳述する。Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図は第２図に示すマッドガードｌの成形工程を示す
金型２の断面図である。第２図に示すマッドガードｌは
、車体のフェンダパネルに取り付けられる取付部１ａと
、この取付部１ａの外周縁から下方に延びたスカート部
１ｂと、取付１Ｊ１ｂの外周縁から上方に向けて演出形
成されたフェンダガード部１ｃとからなり、取付部１ａ
とフェンダガード部１ｃとが同色、スカート部ｉｂがそ
れらに対して異色に着色されたものである。FIG. 1 is a sectional view of a mold 2 showing the process of molding the mudguard 1 shown in FIG. The mudguard l shown in Fig. 2 has a mounting part 1a attached to the fender panel of the vehicle body, a skirt part 1b extending downward from the outer periphery of the mounting part 1a, and a direction formed upward from the outer periphery of the mounting 1J1b. It consists of a fender guard part 1c and a mounting part 1a.
The fender guard portion 1c and the fender guard portion 1c are the same color, and the skirt portion ib is a different color from them.
前記金型２は、第１金型３．第２金型４および第３金型
５に３分割してあり、キャビティ６か図外のランチに連
通されるようになっている。二のキャビティ６は、マッ
ドガードｌのスカート部ｌｂを含まない、取付部１ａと
フェンダガート部１Ｃの形状を形成している。The mold 2 includes a first mold 3. It is divided into three parts, a second mold 4 and a third mold 5, and communicates with a cavity 6 or a launch (not shown). The second cavity 6 forms the shape of the mounting part 1a and the fender guard part 1C, which does not include the skirt part lb of the mudguard l.
成形工程として、第１図（ａ）に示すように、まず、こ
の金型２のキャビティ６内に、射出フリツク（図示せず
）から図外のランナを介して、第１の成形材料７として
の熱可塑性樹脂（たとえば、グラファイト入りポリプロ
ピレン（ＧＦＰＰ）。In the molding process, as shown in FIG. 1(a), a first molding material 7 is first injected into the cavity 6 of the mold 2 from an injection flick (not shown) through a runner (not shown). thermoplastic resins (e.g. graphite-filled polypropylene (GFPP)).
グラファイト入りナイロン（ＧＦＰＡ）、カーホンファ
イバーナイロン（ＣＦＰＡ）等）を注入する。この第１
の成形材料７は、マッドガートｌのフェンダガード部１
ｃに要求される色に着色されている。Inject graphite-filled nylon (GFPA), carphone fiber nylon (CFPA), etc.). This first
The molding material 7 is the fender guard part 1 of the mud guard l.
It is colored in the color required for c.
次に、第１の成形材料７か固化すると、第１図（ｂ）に
示すように、第１金型３を別の第１金型８に取り替える
。この第１金型８は、第１金型３に対してマッドガード
ｌのスカート部１ｂを形成するキャビティ９を付加する
ように形成されている。したがって、この第１金型８を
他の第２金型４および第３金型５に組み付けることによ
り、マッドガードｌの製品形状キャビティ■０か形成さ
れる。なお、この第１金型３．８の交換時、第１の成形
材料７で形成された製品形状の一部１１は第２金型４及
び第３金型５内にそのまま保持される。Next, when the first molding material 7 solidifies, the first mold 3 is replaced with another first mold 8, as shown in FIG. 1(b). This first mold 8 is formed so as to add a cavity 9 that forms the skirt portion 1b of the mudguard 1 to the first mold 3. Therefore, by assembling this first mold 8 to the other second mold 4 and third mold 5, the product-shaped cavity 0 of the mudguard 1 is formed. Note that when the first mold 3.8 is replaced, a part 11 of the product shape formed with the first molding material 7 is held as it is in the second mold 4 and the third mold 5.
次いて、第１金型８．第２金型４および第３金型５の型
締め後、第１図（ｃ）に示すように、キャビティ９内に
、第１の成形材料７と異色（マットカート１のスカート
部１ｂに要求される色）に着色されｆコ第２の成形材料
１２の熱可塑性樹脂（第１の成形材料７と同一あるいは
異なる熱可塑性樹脂）を注入する。これにより製品形状
の残余の部分１３が形成される。そして、注入された樹
脂全体が固化すると、製品形状の成形品（１１と１３か
らなる）ができる。Next, the first mold 8. After the second mold 4 and the third mold 5 are clamped, as shown in FIG. A thermoplastic resin of the second molding material 12 (the same or different thermoplastic resin as the first molding material 7) is injected. This forms the remaining portion 13 of the product shape. When the entire injected resin solidifies, a product-shaped molded article (consisting of 11 and 13) is produced.
このような成形工程が終了すると、続いて、その成形品
に対して、次のように無色透明の光輝性塗料（ウレタン
系またはアクリル系の塗料等）を塗布する作業を行う。When such a molding process is completed, the molded product is then coated with a colorless and transparent glittering paint (urethane-based or acrylic-based paint, etc.) as follows.
■成形品の表面を脱脂する。■Degrease the surface of the molded product.
■成型品の表面にプライマ処理を施す。■Apply primer treatment to the surface of the molded product.
■成形品の表面に前記光輝性塗料を吹き付ける（電着、
はけ塗り等てしよい）。■Spraying the glittering paint on the surface of the molded product (electrodeposition,
(Brushing, etc. is fine.)
■乾燥する。■Dry.
以上の工程により、取付部１ａとフェンダガート部１ｃ
とが同色、スカート部１ｂがそれらに対して異色に着色
されたマッドガートＩを得ることかできる。Through the above steps, the mounting part 1a and the fender guard part 1c are
It is possible to obtain a mud guard I in which the skirt portion 1b is colored the same color and the skirt portion 1b is colored differently from the skirt portion 1b.
以上のように、この実施例は、成形工程後の塗料塗布工
程を非常に簡略化することができる。また、マスキング
テープの着脱などの作業を必要としないため、塗料塗布
工程を自動化することが可能であり、生産性を大きく向
上させることができる。As described above, this embodiment can greatly simplify the paint application process after the molding process. Furthermore, since operations such as attaching and detaching masking tape are not required, the paint application process can be automated, and productivity can be greatly improved.
なお、上述の実施例では、取付部１ａとフェンダガード
部１ｃとを同色、スカート部１ｂを異色に着色し１こマ
ッドガート１を形成する場合について説明したが、この
発明では、金型のキャビティ形状を変えることにより、
取付部１ａとスカート部１ｂとを同色、フェンダガート
部ＩＣを異色に形成することができるのはいうまでもな
い。In addition, in the above-mentioned embodiment, the mounting part 1a and the fender guard part 1c are colored in the same color, and the skirt part 1b is colored in a different color to form one mud guard 1. However, in this invention, the mold cavity shape By changing
It goes without saying that the mounting part 1a and the skirt part 1b can be formed in the same color, and the fender guard part IC can be formed in a different color.
発明の効果
以上の説明で明らかなように、この発明に係る自動車用
マッドガードの製造方法によれば、成形段階で製品に要
求される着色を施すので、成形後の塗料塗布作業が簡略
化されろとともに、塗料塗布作業の自動化が可能になり
、生産性を大きく向上することができる。Effects of the Invention As is clear from the above explanation, according to the method for manufacturing an automobile mudguard according to the present invention, the required coloring of the product is applied at the molding stage, so the paint application work after molding is simplified. At the same time, it becomes possible to automate the paint application work and greatly improve productivity.
第１図はこの発明の一実施例における成形工程を示す金
型の断面図、第２図はその一実施例により製造されたマ
ットカードを示す斜視図、第３図は第２図の切断線１−
１に沿う断面図、第４図は従来例により製造されたマッ
ドガードを示す斜視図、第５図はマッドガートが自動車
に装着された状態を示す斜視図である。
トマッドガート、２ 金型、６．９・キャピテイ、７・
第１の成形材料、１０・・製品形状キャビティ、Ｉ２・
・・第２の成形材料。
第
図
（ａ）
（ｂ）
９
Ｌ□−−、−ｙFIG. 1 is a sectional view of a mold showing the molding process in an embodiment of the present invention, FIG. 2 is a perspective view of a mat card manufactured by the embodiment, and FIG. 3 is a cutting line of FIG. 2. 1-
1 is a sectional view taken along line 1, FIG. 4 is a perspective view showing a mudguard manufactured according to a conventional example, and FIG. 5 is a perspective view showing the mudguard installed in an automobile. Tomadgat, 2 Mold, 6.9・Capitei, 7・
First molding material, 10... Product shape cavity, I2...
...Second molding material. Figures (a) (b) 9 L□--, -y
Claims (1)
ティを有する金型に第１の成形材料を注入し、この金型
の少なくとも一部を取り替えて前記製品形状の残余のキ
ャビティを形成し、次いでこのキャビティ内に前記第１
の成形材料とは異色の第２の成形材料を注入して成形し
た後、少なくとも前記第２の成形材料で形成された部分
の表面に無色の光輝性塗料を塗布することを特徴とする
自動車用マッドガードの製造方法。(1) Injecting a first molding material into a mold having a cavity forming a part of the product shape of the mudguard, replacing at least a part of the mold to form the remaining cavity of the product shape, and then In this cavity, the first
For automobiles, the method comprises injecting and molding a second molding material having a different color from the molding material, and then applying a colorless glitter paint to at least the surface of the portion formed with the second molding material. How to make mudguards.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8534790A JPH03281321A (en) | 1990-03-30 | 1990-03-30 | Manufacture of mudguard for automobile |
| EP19910302849 EP0449666B1 (en) | 1990-03-30 | 1991-04-02 | Method for forming mud guard |
| DE1991614559 DE69114559T2 (en) | 1990-03-30 | 1991-04-02 | Process for making a fender. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8534790A JPH03281321A (en) | 1990-03-30 | 1990-03-30 | Manufacture of mudguard for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03281321A true JPH03281321A (en) | 1991-12-12 |
Family
ID=13856140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8534790A Pending JPH03281321A (en) | 1990-03-30 | 1990-03-30 | Manufacture of mudguard for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03281321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640152A (en) * | 2013-11-15 | 2014-03-19 | 成都航天模塑股份有限公司 | Mud guard mold and injection molding process thereof |
-
1990
- 1990-03-30 JP JP8534790A patent/JPH03281321A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640152A (en) * | 2013-11-15 | 2014-03-19 | 成都航天模塑股份有限公司 | Mud guard mold and injection molding process thereof |
| CN103640152B (en) * | 2013-11-15 | 2015-11-04 | 成都航天模塑股份有限公司 | Mud guard mould and Shooting Technique thereof |
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