JPS62286728A - Method of removing static electricity from resin molded product - Google Patents
Method of removing static electricity from resin molded productInfo
- Publication number
- JPS62286728A JPS62286728A JP13116686A JP13116686A JPS62286728A JP S62286728 A JPS62286728 A JP S62286728A JP 13116686 A JP13116686 A JP 13116686A JP 13116686 A JP13116686 A JP 13116686A JP S62286728 A JPS62286728 A JP S62286728A
- Authority
- JP
- Japan
- Prior art keywords
- product
- static electricity
- water
- resin molded
- water tank
- 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
- 230000003068 static effect Effects 0.000 title claims abstract description 27
- 230000005611 electricity Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229920005989 resin Polymers 0.000 title claims abstract description 14
- 239000011347 resin Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- -1 for example Substances 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 abstract description 2
- 238000007654 immersion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0081—After-treatment of articles without altering their shape; Apparatus therefor using an electric field, e.g. for electrostatic charging
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
ａ、 産業上の利用分野
本発明は樹脂成形品に帯電している静電気の除去方法に
関する。Detailed Description of the Invention 3. Detailed Description of the Invention a. Field of Industrial Application The present invention relates to a method for removing static electricity from a resin molded article.
ｂ、 従来の技術
樹脂成形品において、たとえば、自動二輪車用のレッグ
シール・ドやフレームカバーなどは、ＡＢＳ権脂やポリ
プロピレンなどを用いて射出成形されている。b. Conventional technology Resin molded products, such as leg shields and frame covers for motorcycles, are injection molded using ABS resin, polypropylene, or the like.
これらの樹脂成形品は成形後、静電気を帯び、そのため
搬送９組立中に周囲の塵埃が付着して見苦しくなる。よ
って静電気除去剤（たとえばスリーボンドバンド−２９
Ａ：商品名）を樹脂成形品に嘴ｊｔ’！布して静電気を
除去することがおこなわれている。These resin molded products are charged with static electricity after being molded, and therefore dust from the surrounding area adheres during assembly of the transport 9, making them unsightly. Therefore, static electricity remover (for example, ThreeBond Band-29)
A: Product name) into a resin molded product! Static electricity is removed by wiping it with a cloth.
Ｃ１発明が解決しようとする７１．．１１題点以上のよ
うに静電気を帯びた樹脂成形品に対しては、その静電気
を除去するため、従来がら静電気除去剤を使用している
が、この除去剤が高価であるとともに、各成形品単品毎
に噴＃Ｉ塗布をおこなわねばならず、非常に工数がかか
るという問題点があった。また、この行程を省略して静
電気除去をおこなわないと製品が汚れ商品価値を下げる
という問題点があった。71. What the C1 invention attempts to solve. ．． As mentioned above, static electricity removers are traditionally used to remove static electricity from resin molded products that are charged with static electricity, but this remover is expensive and There was a problem in that spray #I had to be applied for each item, which required a large number of man-hours. Furthermore, if this step is omitted and static electricity is not removed, the product will become dirty and its commercial value will be lowered.
本発明は前記事情に鑑みてなされたもので、前記従来技
術の問題点を解消しｒＷＩ期的な静電気除去方法を提供
しようとするものである。The present invention has been made in view of the above-mentioned circumstances, and aims to solve the problems of the above-mentioned prior art and provide a method for removing static electricity in the rWI period.
ｄ、 問題点を解決するための手段
本発明は前記問題点を解決するため、静電気を帯びた樹
脂成形品を、アースを設けた水槽に浸漬後、引きあげる
ようにしたものである。d. Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is such that a statically charged resin molded product is immersed in a grounded water tank and then pulled out.
以下、本発明の実施例について図面を参照しながら詳細
に説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図は本発明の方法の施工要領を示し、まず、合成樹脂材
、たとえばポリプロピレン、 Ａｓｓ樹脂を用い、射出
成形機によって製品を成形する。成形後、変形しない温
度まで型内で製品を降温□させたあと、自動取出し機に
よって脱型する。脱型された製品は摩擦によって静電気
を帯び、また取出し直後においては約４６℃〜４８℃の
温度を保持している。取出された製品は直ちに、あるい
は一旦、製品パレットなどに載置しておき、次にこの製
品を一般水道の水を貯溜したアース設置の水槽内に投入
し、２〜３秒の間、浸漬する。この工程によって製品表
面に帯電した静電気は水−アースを介して急速に放電さ
れる。The figure shows the construction procedure of the method of the present invention. First, a synthetic resin material such as polypropylene or Ass resin is used to mold a product using an injection molding machine. After molding, the product is cooled in the mold to a temperature that does not deform □, and then removed from the mold using an automatic ejection machine. The demolded product is charged with static electricity due to friction, and maintains a temperature of approximately 46°C to 48°C immediately after being taken out. The removed product is placed on a product pallet immediately or temporarily, and then placed in a grounded water tank containing general tap water and immersed for 2 to 3 seconds. . Through this process, static electricity charged on the product surface is rapidly discharged via water and earth.
浸漬後、水槽から製品を引きあげ水切りをおこない乾燥
する。脱型直後に浸漬処理された場合は、製品自体はな
お、雰囲気温度（常温）より著しく高い温度範囲にある
ため水槽より製品を引きあげると、製品の表面から水分
が急速に蒸発を始めて速やかに乾燥する。After soaking, the product is removed from the water tank, drained, and dried. If the product is immersed immediately after demolding, the temperature will still be significantly higher than the ambient temperature (room temperature), so when the product is removed from the water tank, moisture will begin to evaporate rapidly from the surface of the product. dry.
なお、脱型した前記製品は、製品パレットから一枚づつ
、あるいは製品パレットと共に複数個の製品を水槽に浸
漬することもできる。The demolded products may be immersed one by one from a product pallet, or a plurality of products together with the product pallet may be immersed in a water tank.
また、前記水槽の水は、特に温度設定、温度維持はせず
、日常使用する水温（たとえば１６℃〜１８℃）の一般
水道の水を用いれば、よく、製品の静電気を誘導する性
質が維持できればよい、すなわち、前記温度範囲に限定
されない。また、水槽内の水は汚染した場合は交換する
必要があるが、通常は１日１回の割合で交換する。In addition, the water in the aquarium should not be set or maintained at a particular temperature, and if you use regular tap water at the temperature you use on a daily basis (for example, 16 to 18 degrees Celsius), the product's ability to induce static electricity will be maintained. In other words, it is not limited to the above temperature range. Additionally, if the water in the aquarium becomes contaminated, it must be replaced, but this is normally done once a day.
製品を水槽から引きあげたあと、乾燥するまでの所要時
間は、製品自体の温度、雰囲気の温度及び湿度１通風状
態などによって影響されるが、特に乾燥工程を設けるこ
となく、通常は水切り後、組立などの次工程に対する待
機用、若しくは保管用の製品棚に載置保管（たとえば１
２時間〜２４時間）され、常温で自然乾燥される。The time required for drying the product after it is taken out of the water tank is affected by the temperature of the product itself, the temperature and humidity of the atmosphere, and the ventilation conditions, etc., but it is usually assembled after draining without any special drying process. For example, 1
2 hours to 24 hours) and then air dried at room temperature.
本方法に用いる水槽が絶縁体で形成されている場合は、
アースは、たとえば水槽を内側まで貫通して水中に露出
させるようにすればよい、また水槽が鉄等の導電性材料
で形成されている場合は、水槽の外周部分からアースを
とればよいが、塗装などによって絶縁性皮膜が形成され
ている場合や、水槽内の水の交換を容易にするためゴム
車輪付台車などに水槽が載置されている場合などがあり
、したがって導電性材料で形成された水槽でもアース先
端を水槽内側に貫通し、水中に露出させるか、水槽の上
部開口部よりアース先端を水槽内に投入すればよ（、あ
るいは其他の適当な方法でアースをとればよい。If the water tank used in this method is made of an insulator,
For example, the grounding can be done by penetrating the inside of the aquarium and exposing it underwater, or if the aquarium is made of conductive material such as iron, the grounding can be done from the outer periphery of the aquarium. In some cases, an insulating film is formed by painting, etc., and in some cases, the tank is mounted on a trolley with rubber wheels to make it easier to exchange the water in the tank. Even in a large aquarium, the grounding tip can be passed through the inside of the tank and exposed under water, or the grounding tip can be inserted into the aquarium through the upper opening of the tank (or you can use any other suitable method to connect the ground.
次に本・発明の方法を具体的に実施し、その実施前後に
おける効果の確認を多数の試料についておこなった。す
なわち、ポリプロピレン製の自動二輪用レッグシールド
を射出成形し、脱型したあと、幅×長さ×深さ−５５０
ｘ８００ ｘ５００ ｆｉの鉄板製水槽＜ｔＩ４製クサ
りを地下面に垂らしてアースをとっである）に貯留した
水道水中に２〜３秒間浸漬し、乾燥した。Next, the method of the present invention was specifically implemented, and the effects before and after implementation were confirmed on a large number of samples. In other words, after injection molding a leg shield for motorcycles made of polypropylene and removing the mold, the width x length x depth - 550
It was immersed for 2 to 3 seconds in tap water stored in an iron plate water tank measuring x800 x 500 fi (grounded by hanging a tI4 chain on the underground surface) and dried.
浸漬前後における静電気の電位の変化は次表のとおりで
あった。表から明らかなように、本発明の方法を実施し
た場合、帯電した静電気は水槽に浸漬したあとは殆ど放
電されていることが判る。The changes in electrostatic potential before and after immersion are shown in the table below. As is clear from the table, when the method of the present invention is carried out, it can be seen that most of the static electricity that has been charged is discharged after being immersed in the water tank.
なお、上記静電気の測定は市販の静電気測定器（商品名
：スタチロンＭ、シシド静電気株式会社製）を使用し、
×１０倍で測定した。The above static electricity was measured using a commercially available static electricity meter (product name: Statylon M, manufactured by Shishido Static Electric Co., Ltd.).
Measurements were made at ×10 magnification.
ｅ、 発明の効果
以上のように樹脂成形品に生じた静電気に対し、従来は
静電気除去剤を噴霧塗布して除去をしていたが、本発明
の方法によれば、以上のように成形品を単にアースを設
けた水槽中の水に数秒間浸漬するだけでよく、引きあげ
られた成形品は次工程待ちの製品棚などにおいて自然乾
燥させればよい。e. Effects of the invention As described above, static electricity generated in resin molded products was conventionally removed by spraying a static electricity remover, but according to the method of the present invention, the static electricity generated in resin molded products can be removed as described above. It is sufficient to simply immerse the molded product in water in a grounded water tank for a few seconds, and then the molded product can be naturally dried on a shelf awaiting the next process.
したがって射出成形後、製品に対する塵埃の付着を防止
し、塵埃の除去作業が不要となり、また静電気除去剤も
使用しないですむ。よって製品原価の低減に効果がある
。たとえば、特定の自動２輪車一台当り使用していた静
電気除去剤費用６０円が節約でき、月産２万台とすれば
１２０万円７月の費用が節約できることになる。Therefore, after injection molding, dust is prevented from adhering to the product, eliminating the need for dust removal work and eliminating the need to use static electricity removers. Therefore, it is effective in reducing product costs. For example, you can save 60 yen in the cost of static electricity remover used for each specific two-wheeled motor vehicle, and if you have a monthly production of 20,000 units, you can save 1.2 million yen in July costs.
図は本発明の施工要領を説明する工程図である。 The figure is a process diagram explaining the construction procedure of the present invention.
Claims (1)
に浸漬後、引きあげることを特徴とする樹脂成形品の静
電気除去方法。 ２）射出成形品を脱型後、製品自体の温度が高いうちに
水槽に浸漬することを特徴とする特許請求の範囲第１項
に記載の樹脂成形品の静電気除去方法。[Claims] 1) A method for removing static electricity from a resin molded product, which comprises immersing a statically charged resin molded product in a grounded water tank and then pulling it out. 2) The method for removing static electricity from a resin molded product according to claim 1, which comprises immersing the injection molded product in a water bath while the product itself is still hot after being demolded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13116686A JPS62286728A (en) | 1986-06-06 | 1986-06-06 | Method of removing static electricity from resin molded product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13116686A JPS62286728A (en) | 1986-06-06 | 1986-06-06 | Method of removing static electricity from resin molded product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62286728A true JPS62286728A (en) | 1987-12-12 |
Family
ID=15051549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13116686A Pending JPS62286728A (en) | 1986-06-06 | 1986-06-06 | Method of removing static electricity from resin molded product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62286728A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2162531A1 (en) * | 1998-05-27 | 2001-12-16 | Serveis De Produccio Empresari | Removal of static electricity from extrusion lines consists of deionising after cutting to size between the stacking zone of the guillotined sheets |
| CN105733017A (en) * | 2014-12-29 | 2016-07-06 | 东丽电池隔膜株式会社 | Method for surface treatment of microporous polyolefin film, surface charging apparatus and microporous polyolefin film |
-
1986
- 1986-06-06 JP JP13116686A patent/JPS62286728A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2162531A1 (en) * | 1998-05-27 | 2001-12-16 | Serveis De Produccio Empresari | Removal of static electricity from extrusion lines consists of deionising after cutting to size between the stacking zone of the guillotined sheets |
| CN105733017A (en) * | 2014-12-29 | 2016-07-06 | 东丽电池隔膜株式会社 | Method for surface treatment of microporous polyolefin film, surface charging apparatus and microporous polyolefin film |
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