JPS62294463A - Apparatus for continuously applying powder to metal material - Google Patents
Apparatus for continuously applying powder to metal materialInfo
- Publication number
- JPS62294463A JPS62294463A JP13480686A JP13480686A JPS62294463A JP S62294463 A JPS62294463 A JP S62294463A JP 13480686 A JP13480686 A JP 13480686A JP 13480686 A JP13480686 A JP 13480686A JP S62294463 A JPS62294463 A JP S62294463A
- Authority
- JP
- Japan
- Prior art keywords
- metal material
- powder
- fluidized
- tank
- coating
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 47
- 239000007769 metal material Substances 0.000 title claims abstract description 39
- 238000010422 painting Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 26
- 238000000576 coating method Methods 0.000 claims description 26
- 238000005243 fluidization Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 abstract description 15
- 239000000057 synthetic resin Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 7
- 239000003973 paint Substances 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000007654 immersion Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野）
本発明は、金属材、例えば長尺の線材、長尺の棒材等に
合成樹脂をコーテングしてコンクリート内に内装した時
滑べりやすくしたり、あるいは防錆等の目的で粉体塗装
を行なうようにした金属材の連続粉体塗装装置に関する
ものである。Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention is a method of coating a metal material, such as a long wire rod or a long bar material, with a synthetic resin and placing it in concrete. This invention relates to a continuous powder coating device for metal materials that is powder coated for the purpose of making it slippery when installed inside or for the purpose of rust prevention.
（従来の技術）
長尺線材、長尺棒材等の金属材に合成樹脂をコーティン
グする方法として、従来流動浸漬法、あるいは流動循環
法等が多く使用されている。(Prior Art) As a method for coating metal materials such as long wire rods and long rods with synthetic resins, fluid dipping methods, fluid circulation methods, etc. are conventionally often used.
従来流動浸漬法を施工する装置として、例えば第６図に
示すように予熱された素材である線状の金属材１を送風
する空気室２と粉体流動槽４との間に多孔質体３を設け
、空気室２には送風用のブロワ−ｂを連結したもので、
空気と合成樹脂粉との混合流動層に長尺の線材製金属材
１を入口６から挿通し、出ロアから脱出せしめ金属材５
に合成樹脂を吹付ける装置であって、この従来の装置は
構造が簡単で取扱い易く設備コストも安い等の効果はあ
るが、合成樹脂粉の塗装被膜が不均一でピンホール欠陥
が発生し易い欠点がある。それは第７図に示すように金
属材５の下面に空気室２よシ多孔質体３を通過した空気
が流動層となった合成樹脂粉を金属材５に向って吹付け
る際流動層の上昇流粉体が金属材５０両側に吹付けられ
るけれども下面は死角１５となり、この部分に合成樹脂
粉体ａの密着量が少なくなシ塗装被膜が不均一となる。Conventionally, as shown in FIG. 6, a porous body 3 is installed between an air chamber 2 that blows air through a wire-shaped metal material 1, which is a preheated raw material, and a powder fluidization tank 4, as a device for implementing the conventional fluidized dipping method. is provided, and a blower b for blowing air is connected to the air chamber 2.
A long wire metal material 1 is inserted through the inlet 6 into a mixed fluidized bed of air and synthetic resin powder, and is allowed to escape from the outlet lower.
This is a device that sprays synthetic resin onto the surface of the plastic. Although this conventional device has the advantages of a simple structure, easy handling, and low equipment cost, the coating film of the synthetic resin powder is uneven and pinhole defects are likely to occur. There are drawbacks. As shown in FIG. 7, when the air that has passed through the air chamber 2 and the porous body 3 blows the synthetic resin powder forming a fluidized bed toward the metal material 5, the fluidized bed rises. Although the flowing powder is sprayed on both sides of the metal material 50, the lower surface becomes a blind spot 15, and since the amount of synthetic resin powder a adheres to this part is small, the coating film becomes uneven.
且又ピンホールが発生し、この傾向は金属材の線径が大
きくなるほど激しくなる。In addition, pinholes occur, and this tendency becomes more severe as the wire diameter of the metal material increases.
又流動層循環法を実施する装置は第８図に示すようにブ
ロワ−ｂを設けた空気室２に多孔質体３を設け、多孔質
体３の上方に設けた塗装用粉体流動槽４を設け、該流動
槽４に設けた流通路１６をコーティングヘッダー１７の
一端に連結し、コーティングヘッダー１７内を線材等の
金属材５を通過せしめて合成樹脂粉を吹付けて塗装し、
コーティングヘッダー１７の他端に設けた流通路１８は
途中のタンク１９を介して流動層４に連結し合成樹脂粉
を循環せしめて金属材５に塗装するものである。As shown in FIG. 8, the apparatus for carrying out the fluidized bed circulation method includes a porous body 3 provided in an air chamber 2 equipped with a blower b, and a coating powder fluidization tank 4 provided above the porous body 3. A flow path 16 provided in the fluidization tank 4 is connected to one end of a coating header 17, a metal material 5 such as a wire rod is passed through the coating header 17, and synthetic resin powder is sprayed and painted.
A flow path 18 provided at the other end of the coating header 17 is connected to the fluidized bed 4 via a tank 19 in the middle to circulate synthetic resin powder and coat the metal material 5.
この装置は塗装用粉体流動槽４の外部に設けたコーティ
ングヘッダー１７内において金属材５に合成樹脂粉を金
属材５と平行に流して塗装するものであるから、第７図
に示すような粉体の上昇流によるものでないから死角が
なく、第６図に示す装置の欠点をカバーすることができ
る。This apparatus is for coating metal materials 5 by flowing synthetic resin powder in parallel with the metal materials 5 in a coating header 17 provided outside the powder fluidization tank 4 for painting, so that the coating is performed as shown in FIG. 7. Since it is not caused by an upward flow of powder, there is no blind spot, and the drawbacks of the device shown in FIG. 6 can be covered.
しかしながらこの装置の場合は金属材５である線状体の
断面形状が円形でなく撚線、あるいは凹みのある鋼線、
鋼棒（例えば異形ＰＣ鋼棒）等においては粉体が金属材
５と平行に近い状態で流れるため凹部において粉体が衝
突する頻度が少いことによシ付着量が不足となりピンホ
ールができやすい。このため流動浸漬法と比較して線の
進行速度を遅く設定せねばならない、又装置が複雑で設
備コストが高くなる欠点がある。However, in the case of this device, the cross-sectional shape of the wire body that is the metal material 5 is not circular, but is a twisted wire, or a steel wire with a recess.
In steel rods (for example, irregularly shaped PC steel rods), the powder flows almost parallel to the metal material 5, so the powder collides less frequently in the recesses, resulting in insufficient adhesion and pinholes. Cheap. For this reason, compared to the fluidized immersion method, the wire traveling speed must be set slower, and the equipment is complicated and the equipment cost is high.
（発明が解決しようとする問題点）
前記従来の装置によると線状体である金属材がより線で
あったシ、異形のＰＣ鋼棒であったりすると凹部に塗装
用粉体が全周に均一に塗装されず、ピンホールが発生し
やすい欠点がある。又流動層循環法実施の装置によると
線状等金属材の進行速度を遅くしないと粉体の塗装層が
均一にならず不能率であると共に設備費が高くなる等の
問題がある０
（問題点を解決するための手段）
本発明は従来の問題点を解決するために下記の手段を講
じたもので、その構成は塗装室１に設けた空気室２より
多孔質体３で隔てられた塗装用粉体流動槽４内に線状あ
るいは棒状等の金属材５を連続的に通過せしめる入口６
及び出ロアを設け、流動槽４内における金属材５と隔て
た位置に、切欠部８と遮蔽部９とを有する遮蔽板１０を
設けたことを特徴とする金属材の連続粉体塗装装置であ
り、この装置において塗装用粉体流動槽４の連続的通過
用量ロアに粉体が槽外へ流出するのを防止するためのエ
アーノズル１１ （例えばリング状エアーノズル１１）
を設けて粉体が流動槽４の出ロアより流出しないように
して粉体の消費を節約すると同時に粉体により作業環境
の悪化を防止する。(Problems to be Solved by the Invention) According to the above-mentioned conventional apparatus, if the linear metal material is a stranded wire or an irregularly shaped PC steel bar, the coating powder will be deposited in the concave part all around the circumference. The disadvantage is that the coating is not uniform and pinholes are likely to occur. In addition, according to equipment that implements the fluidized bed circulation method, unless the advancing speed of linear metal materials is slowed down, the coating layer of powder will not be uniform, resulting in failure rates and increased equipment costs. Means for Solving the Problems) The present invention takes the following measures to solve the problems of the conventional art.The present invention has a structure in which a painting room 1 is separated from an air chamber 2 by a porous body 3. An inlet 6 that allows a metal material 5 such as a wire or rod shape to continuously pass through the powder fluidization tank 4 for coating.
A continuous powder coating apparatus for metal materials, characterized in that a shielding plate 10 having a cutout part 8 and a shielding part 9 is provided at a position separated from the metal material 5 in the fluidizing tank 4. In this device, there is an air nozzle 11 (for example, a ring-shaped air nozzle 11) to prevent the powder from flowing out of the tank into the continuous flow rate lower of the powder fluidization tank 4 for coating.
is provided to prevent the powder from flowing out from the outlet lower part of the fluidizing tank 4 to save consumption of the powder and at the same time prevent deterioration of the working environment due to the powder.
（作用）
本発明は第１図に示すように合成樹脂粉体ａと、ブロワ
−ｂによシ供給された空気室２内の空気を多孔質体３を
通過させて粉体ａを内在させた流動槽４内で空気と粉体
ａとが混合され流動層となり線状あるいは棒状の金属材
５の下面からある距離をおいて流動層の上昇流を部分的
に阻止する遮蔽板１０の遮蔽部９と上昇流が通過する切
欠部８とによシ流動層における粉体ａの上昇流に強弱が
交互に発生し、従来の流動浸漬法で問題になっている金
属材５の下面での溶着不足によるピンホールの発生を阻
止できる。流動槽４からの粉体ａの流失防止として流動
槽４への金属材５０入側はメカニカルシール１２とし、
出側はスリットリングのエアーノズル１１とした。(Function) As shown in FIG. 1, the present invention allows the synthetic resin powder a and the air in the air chamber 2 supplied by the blower b to pass through the porous body 3 to contain the powder a. Air and powder a are mixed in the fluidized fluidized tank 4 to form a fluidized bed, and a shielding plate 10 is installed at a certain distance from the lower surface of the linear or rod-shaped metal material 5 to partially block the upward flow of the fluidized bed. 9 and the notch 8 through which the upward flow passes, the upward flow of the powder a in the fluidized bed alternates in strength and weakness, which causes problems on the lower surface of the metal material 5, which is a problem in the conventional fluidized dipping method. It is possible to prevent pinholes from occurring due to insufficient welding. In order to prevent the powder a from flowing out from the fluidization tank 4, a mechanical seal 12 is provided on the entrance side of the metal material 50 to the fluidization tank 4.
The outlet side was a slit ring air nozzle 11.
遮蔽板１０の形状は第２図及び第３図に示すように半円
形樋状又は平板状で切欠部８と遮蔽部９とを交互に形成
して構成する。この遮蔽板１０の重要な因子は寸法関係
であシ、それは第４図に示すように半円にした樋状の遮
蔽板１０の直径ｄ１→Ａは流動槽４の断面寸法ｄ２→Ｂ
と線状の金属体５の直径ｄ３→Ｃ間で次の相関関係を満
足することによって安定した作業性の良好な被膜の形成
を確保できることを確認している。The shape of the shielding plate 10 is, as shown in FIGS. 2 and 3, in the shape of a semicircular gutter or a flat plate, and is constructed by alternately forming notches 8 and shielding parts 9. An important factor of this shielding plate 10 is the dimension relationship, as shown in FIG.
It has been confirmed that by satisfying the following correlation between the diameter d3 and the diameter d3 of the linear metal body 5→C, it is possible to ensure stable formation of a film with good workability.
２ ｄ３．ｆｆｄｔ ｆ −ｄ２
このような寸法関係において遮蔽板１０の切欠部８と遮
蔽部９の最適な比率は５０〜８０：５０〜２０ である
。2 d3. ffdt f - d2 In such a dimensional relationship, the optimal ratio of the notch 8 of the shielding plate 10 to the shielding part 9 is 50-80:50-20.
本発明の原理を第５図によ・りて説明する。The principle of the present invention will be explained with reference to FIG.
被塗装物である線状の金属材５の下方に設けられた切欠
部８と遮蔽部９を有する遮蔽板１０の上に形成された粉
体ａの流動層は遮蔽板１０の切欠部８を上昇する上昇の
流動層１３と遮蔽部９の上形成される沈降流による堆積
層１４からなり、これらは一体となって循環流となって
いる。従って金属材５がこれらの流動層１３と堆積層１
４を交互に通過することによって上昇流を有する流動層
１３で生ずる金属材５の下面に生ずる粉体ａの溶着量の
不足を堆積層１４で補足し金属材５の下面を含む全体に
均一な塗装用粉体を塗着せしめる。A fluidized layer of powder a formed on a shielding plate 10 having a notch 8 and a shielding part 9 provided below a linear metal material 5, which is an object to be coated, passes through the notch 8 of the shielding plate 10. It consists of a rising fluidized bed 13 and a sedimentary layer 14 formed by a settling flow above the shielding part 9, which together form a circulating flow. Therefore, the metal material 5 is connected to the fluidized layer 13 and the deposited layer 1.
4 alternately, the deposited layer 14 compensates for the insufficient amount of powder a deposited on the lower surface of the metal material 5 caused by the fluidized bed 13 having an upward flow, and the deposited layer 14 compensates for the insufficient amount of powder a deposited on the lower surface of the metal material 5. Apply the paint powder.
遮蔽板１０に設けた切欠部８と遮蔽部９の長さの比率は
前記したように５０〜８０ ： ５０〜２０の程度範囲
が最適である。例えば極端に切欠部８の比率を大きくす
ると従来の流動浸漬法で生じる金属材下面の欠陥が発生
するし、文通に極端に遮蔽部９を大きくすると流動層１
３の環流が弱く流動性がなくな９合成樹脂粉の補給不足
及び堆積層１４に熱がとも９合成樹脂粉量士が固着する
ブロッキング現象を生じ連続処理が不可能となる。従っ
て前記の比率の範囲に設定することにより堆積層１４の
合成樹脂粉体ａが適当に流動層１３と入替り従来の問題
点が解消される。As described above, the ratio of the lengths of the notch 8 and the shielding part 9 provided in the shielding plate 10 is optimally in the range of 50 to 80:50 to 20. For example, if the ratio of the cutout portion 8 is made extremely large, defects will occur on the lower surface of the metal material that occurs in the conventional fluidized dipping method, and if the shielding portion 9 is made extremely large for correspondence, the fluidized bed 1
The reflux of No. 3 is weak and fluidity is lost, leading to insufficient replenishment of synthetic resin powder No. 9 and a blocking phenomenon in which the deposited layer 14 is heated and the synthetic resin no. 9 adheres, making continuous processing impossible. Therefore, by setting the ratio within the above range, the synthetic resin powder a of the deposited layer 14 can be appropriately replaced with the fluidized bed 13, and the conventional problems can be solved.
（実施例）
本発明は問題点を解決するための手段において説明した
構成及び第１図に示す装置を用いて１１、ｏφの鋼線よ
りなる金属材５にエポキシ樹脂コーティングを実施した
。(Example) In the present invention, an epoxy resin coating was applied to a metal material 5 made of a steel wire of 11 oφ using the configuration described in the section for solving problems and the apparatus shown in FIG.
塗装室１の槽長 １２００ ％
遮蔽板１０は半円樋状で格子切欠部（切欠部：遮蔽部−
２：１）
金属材５の線速度 １０〜３０ｍｚ努
いづれにおいてもコーティング厚み１００〜３００μｍ
のピンホールのない良好な塗装被膜を形成することがで
きた。Tank length of painting room 1: 1200% The shielding plate 10 has a semicircular gutter shape with a grid cutout (cutout: shielding)
2:1) Even if the linear velocity of the metal material 5 is 10 to 30 mz, the coating thickness is 100 to 300 μm.
It was possible to form a good paint film with no pinholes.
（発明の効果）
本発明は簡単で故障のおそれのない装置によシ、塗装粉
体を金塊状に均一でしかも連続的に塗装することが可能
となり塗装作業を能率的に行ない得られる等の効果があ
る。(Effects of the Invention) The present invention uses a simple and trouble-free apparatus, which makes it possible to uniformly and continuously coat coating powder in the form of gold nuggets, and enables efficient coating work. effective.
第１図は本発明実施の１例を示す断面図、第２図、第３
図に遮蔽板の斜視図、第４図は塗装室と遮蔽板との寸法
関係説明図、第５図は本発明の作用説明図、第６図は従
来装置の断面図、第７図は塗装不良の説明図、第８図は
従来装置の説明図である。
１は塗装室、２は空気室、３は多孔質体、４は流動槽、
５は金属材、６は入口、７は出口、８は切欠部、９は遮
蔽部、１０は遮蔽板、】１はエアーノズル、１２はメカ
ニカルシール、１３は流動層、１４は堆積層、１５は死
角、１６ 、１８は流通路、１７はコーティングへラダ
ー、１９はタンク、ａは粉体、ｂはブロワ−０Figure 1 is a sectional view showing one example of implementing the present invention, Figures 2 and 3 are
Figure 4 is a perspective view of the shielding plate, Figure 4 is a diagram explaining the dimensional relationship between the coating chamber and the shielding plate, Figure 5 is a diagram explaining the operation of the present invention, Figure 6 is a sectional view of the conventional device, and Figure 7 is painting. FIG. 8 is an explanatory diagram of a conventional device. 1 is a painting room, 2 is an air chamber, 3 is a porous body, 4 is a fluidized tank,
5 is a metal material, 6 is an inlet, 7 is an outlet, 8 is a notch, 9 is a shielding portion, 10 is a shielding plate, 1 is an air nozzle, 12 is a mechanical seal, 13 is a fluidized bed, 14 is a deposited layer, 15 is a blind spot, 16 and 18 are flow paths, 17 is a ladder to coating, 19 is a tank, a is a powder, and b is a blower 0
Claims (2)
塗装用粉体流動槽内に金属材を連続的に通過せしめる入
口及び出口を設け、流動槽内における金属材と隔てた位
置に切欠部と遮蔽部を有する遮蔽板を設けたことを特徴
とする金属材の連続粉体塗装装置。(1) An inlet and an outlet for allowing metal materials to pass continuously are provided in a fluidized powder tank for painting, which is separated by a porous material from the air chamber provided in the painting room, and located at a location in the fluidized tank separated from the metal materials. 1. A continuous powder coating device for metal materials, characterized in that a shielding plate having a cutout portion and a shielding portion is provided.
的通過用の出口に粉体の槽外への流出防止用のエアーノ
ズルを設けた、特許請求の範囲第１項記載の金属材の連
続粉体塗装装置。(2) The metal according to claim 1, wherein an air nozzle for preventing the powder from flowing out of the tank is provided at the outlet for continuous passage of the metal material of the powder fluidization tank for coating in the painting room. Continuous powder coating equipment for materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13480686A JPS62294463A (en) | 1986-06-12 | 1986-06-12 | Apparatus for continuously applying powder to metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13480686A JPS62294463A (en) | 1986-06-12 | 1986-06-12 | Apparatus for continuously applying powder to metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62294463A true JPS62294463A (en) | 1987-12-21 |
Family
ID=15136956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13480686A Pending JPS62294463A (en) | 1986-06-12 | 1986-06-12 | Apparatus for continuously applying powder to metal material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62294463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017138621A1 (en) * | 2016-02-10 | 2017-08-17 | 日本発條株式会社 | Method and device for manufacturing coil spring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234715B2 (en) * | 1983-05-30 | 1987-07-28 | Inoue Japax Res |
-
1986
- 1986-06-12 JP JP13480686A patent/JPS62294463A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234715B2 (en) * | 1983-05-30 | 1987-07-28 | Inoue Japax Res |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017138621A1 (en) * | 2016-02-10 | 2017-08-17 | 日本発條株式会社 | Method and device for manufacturing coil spring |
| US11065641B2 (en) | 2016-02-10 | 2021-07-20 | Nhk Spring Co., Ltd. | Coil spring manufacturing method and coil spring manufacturing device |
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