JP2000343013A - Powder fluidized dip coating method and powder fluidized dip coating device - Google Patents
Powder fluidized dip coating method and powder fluidized dip coating deviceInfo
- Publication number
- JP2000343013A JP2000343013A JP11156790A JP15679099A JP2000343013A JP 2000343013 A JP2000343013 A JP 2000343013A JP 11156790 A JP11156790 A JP 11156790A JP 15679099 A JP15679099 A JP 15679099A JP 2000343013 A JP2000343013 A JP 2000343013A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- tank
- powder
- casting
- air
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は粉体流動浸漬塗装方
法および粉体流動浸漬塗装装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder fluid immersion coating method and a powder fluid immersion coating apparatus.
【０００２】[0002]
【従来の技術】金網や工具等に簡易に塗装が可能な粉体
流動浸漬塗装装置がある。図２は、従来の粉体流動浸漬
塗装装置１０の一例である。１２はタンクで、多孔板か
らなる隔壁１４により上下室に仕切られている。上室１
２ａには粉体塗料１６が収納される。下室１２ｂには、
エア供給源に接続されるパイプ１８から上向きにエアが
供給される。下室１２ｂ内に供給されたエアは隔壁１４
を通過して上室ａ内に供給され、粉体塗料１６を浮遊さ
せる。2. Description of the Related Art There is a powder fluidized immersion coating apparatus capable of easily coating a wire net or a tool. FIG. 2 is an example of a conventional powder fluidized immersion coating apparatus 10. Reference numeral 12 denotes a tank, which is divided into upper and lower chambers by a partition wall 14 made of a perforated plate. Upper room 1
The powder paint 16 is stored in 2a. In lower room 12b,
Air is supplied upward from a pipe 18 connected to an air supply source. The air supplied into the lower chamber 12b is
Is supplied into the upper chamber a through which the powder coating material 16 floats.
【０００３】鋳造品等からなる被塗物２０は、鋳造後、
例えば湯口部分の除去 孔加工などの必要な加工がなさ
れ、次いで該加工により付着した油分等を除去するた
め、酸浸漬、アルカリ浸漬、洗浄工程などの表面洗浄処
理がなされた後、別途予熱炉（図示せず）内で所要温
度、例えば１２０℃前後の温度にまで昇温され、治具に
装着され、上記タンク１２内の浮遊している粉体塗料１
６内に浸漬される。これにより、粉体塗料１６が被塗物
２０表面に付着、融解し、塗膜が形成される。タンク１
２内から取り出された被塗物２０は後加熱炉（図示せ
ず）内でさらに塗膜の焼付処理がなされる。[0003] An article 20 to be coated, such as a cast product, is cast.
For example, necessary processing such as removal of the gate section is performed, and then, in order to remove oil and the like adhered by the processing, a surface cleaning treatment such as an acid immersion, an alkali immersion, and a cleaning process is performed. (Not shown), the temperature is raised to a required temperature, for example, a temperature of around 120 ° C., the jig is attached to the jig, and the floating powder coating 1
6 immersed. As a result, the powder coating 16 adheres and melts on the surface of the article 20 to be coated, and a coating film is formed. Tank 1
The coating object 20 taken out from the inside 2 is further subjected to a baking treatment of a coating film in a post-heating furnace (not shown).
【０００４】[0004]
【発明が解決しようとする課題】上記粉体流動浸漬塗装
方法は、塗膜に厚さのばらつきは生じやすいが、装置が
簡易で、工程も少なく、コストがかからないため、種々
の工具等の塗装に利用されている。しかしながら、本発
明者は次のような課題を見いだした。すなわち、塗装装
置そのものは簡易だが、事前の表面処理装置、予熱炉、
後加熱炉が必要で、装置全体では必ずしも簡易とはいえ
ないこと、またこれらの工程が必要で、結構工数もかか
ることを見いだした。また、塗装装置自体でみても、エ
アをパイプ１８から上向きに下室１２ｂ内に供給してい
るので、上室１２ａ内での粉体塗料の浮遊が装置の中央
で大きく、周辺で小さくなるなど均一でなく、そのため
にまた塗膜の均一性が阻害される課題がある。さらに、
工場内で飛散した切子等の異物がタンク１２内に落下す
ることがあり、これらが被塗物表面に付着するなどの課
題もある。According to the above-mentioned powder fluid immersion coating method, the thickness of the coating film tends to vary, but the apparatus is simple, the number of steps is small, and the cost is low. It is used for However, the inventor has found the following problem. In other words, the coating equipment itself is simple, but the surface treatment equipment, preheating furnace,
It has been found that a post-heating furnace is required, and that the whole apparatus is not always simple, and that these steps are necessary and require a lot of man-hours. Further, even in the case of the coating apparatus itself, since air is supplied upward from the pipe 18 into the lower chamber 12b, the floating of the powder coating in the upper chamber 12a is large in the center of the apparatus and small in the periphery. There is a problem that the coating film is not uniform, which also impairs the uniformity of the coating film. further,
There is also a problem that foreign matter such as facets scattered in the factory may fall into the tank 12 and adhere to the surface of the workpiece.
【０００５】そこで、本発明は上記課題を解決すべくな
されたものであり、その目的とするところは、装置全体
の簡略化、工数の低減化、さらには省エネルギー化を達
成でき、コストの低減化が図れる粉体流動浸漬塗装方法
および粉体流動浸漬塗装装置を提供するにある。Accordingly, the present invention has been made to solve the above-mentioned problems, and has as its object to simplify the entire apparatus, reduce the number of man-hours, achieve energy saving, and reduce the cost. It is an object of the present invention to provide a powder fluidized immersion coating method and a powder fluidized immersion coating device which can achieve the above.
【０００６】[0006]
【課題を解決するための手段】本発明は上記目的を達成
するため次の構成を備える。すなわち、本発明に係る粉
体流動浸漬塗装方法では、タンク内にエアを吹き込み、
タンク内の粉体塗料を浮遊させ、タンク内にあらかじめ
予熱した被塗物を浸漬して被塗物表面に塗膜を形成する
粉体流動浸漬塗装方法において、被塗物たる鋳造物を鋳
型から取出した後、該鋳造物を加熱することなく前記予
熱温度まで冷却して、該鋳造物を前記タンク内に浸漬し
て鋳造物上に塗膜を形成することを特徴としている。The present invention has the following arrangement to achieve the above object. That is, in the powder fluidized immersion coating method according to the present invention, air is blown into the tank,
In a powder flow immersion coating method in which a powder coating in a tank is suspended and a preheated coating is immersed in the tank to form a coating film on the coating surface, a casting as a coating is cast from a mold. After taking out, the casting is cooled to the preheating temperature without heating, and the casting is immersed in the tank to form a coating film on the casting.
【０００７】本発明では、鋳造品を鋳型から取り出した
後、予熱温度まで冷却して後、直ちにタンク内に浸漬す
るようにしている。鋳型から取り出した直後の鋳造品の
表面は酸化皮膜もほとんど形成されておらず、加工油等
の付着もないので、そのまま塗膜が密着性よく形成され
る。また、鋳造時の昇温状態を利用し、加熱することな
く冷却して予熱温度までもってくるので、加熱のための
予熱炉は必要でなく、省エネルギーも図れるという有利
な効果を有する。鋳造品を鋳型から取り出した後、水冷
を経て前記予熱温度まで冷却するようにすると、冷却時
間も短縮できて好適である。In the present invention, the cast product is taken out of the mold, cooled to the preheating temperature, and immediately immersed in the tank. Immediately after being removed from the mold, the surface of the casting has almost no oxide film formed thereon and no adhesion of processing oil or the like, so that the coating film is formed with good adhesion as it is. In addition, since the preheating temperature is obtained by cooling without heating by using the temperature rising state at the time of casting, a preheating furnace for heating is not required, and there is an advantageous effect that energy can be saved. It is preferable that the casting be taken out of the mold and then cooled to the preheating temperature via water cooling since the cooling time can be shortened.
【０００８】また本発明に係る粉体流動浸漬塗装装置
は、タンク内にエアを吹き込み、タンク内の粉体塗料を
浮遊させ、タンク内にあらかじめ予熱した被塗物を浸漬
して被塗物表面に塗膜を形成する粉体流動浸漬塗装装置
において、前記タンクは、粉体塗料を通過させずエアは
通過させる隔壁により上下室に仕切られ、下室に、エア
供給源に接続可能で、下向きに圧縮エアを吹き出す送気
パイプが横方向に配設されて成り、下室から隔壁を通過
したエアにより上室に収納される粉体塗料を上室内で浮
遊させることを特徴としている。[0008] Further, the powder fluid immersion coating apparatus according to the present invention blows air into a tank to float the powder coating in the tank, immerses a pre-heated coating in the tank, and immerses the coating in the tank. In the powder flowing immersion coating apparatus for forming a coating film on the tank, the tank is divided into upper and lower chambers by a partition wall that does not allow the powder coating to pass and allows the air to pass therethrough. An air supply pipe for blowing compressed air is provided in the lateral direction, and the powder paint stored in the upper chamber is floated in the upper chamber by air passing through the partition from the lower chamber.
【０００９】横方向に配設された送気パイプから下向き
にエアが吹き出され、このエアが下室の底面にぶつかっ
て反射され、上昇して隔壁を通過し、上室内に導かれる
ことから、上室内に導入されるエアが平均化し、上室内
の粉体塗料をタンク中央、周辺部で均一に浮遊させるこ
とができる。この場合、タンクの下室内に、上下方向に
一定の幅で伸び、少なくとも前記送気パイプの上方空間
を仕切る複数枚の仕切り板を設けると、下室内で上昇す
るエアが整流され、さらに上室内の粉体塗料を均一に浮
遊させることができる。Air is blown downward from an air supply pipe disposed in the lateral direction, and the air hits the bottom of the lower chamber, is reflected, rises, passes through the partition wall, and is guided into the upper chamber. The air introduced into the upper chamber is averaged, and the powder paint in the upper chamber can be evenly floated at the center and the periphery of the tank. In this case, if a plurality of partition plates extending in the vertical direction at a constant width in the lower chamber of the tank and partitioning at least the space above the air supply pipe are provided, air rising in the lower chamber is rectified, and the upper chamber is further rectified. Powder coating can be evenly floated.
【００１０】また本発明に係る粉体流動浸漬塗装装置で
は、タンク内にエアを吹き込み、タンク内の粉体塗料を
浮遊させ、タンク内にあらかじめ予熱した被塗物を浸漬
して被塗物表面に塗膜を形成する粉体流動浸漬塗装装置
において、前記タンクは、粉体塗料を通過させずエアは
通過させる隔壁により上下室に仕切られ、上室内底部
に、該上室底部を所要高さに複数に仕切る仕切り体が配
設されて成り、下室に供給され、隔壁を通過したエアに
より上室に収納される粉体塗料を上室内で浮遊させるこ
とを特徴としている。[0010] In the powder fluid immersion coating apparatus according to the present invention, air is blown into the tank to float the powder coating in the tank, and the preheated article is immersed in the tank to immerse the article in the tank. In a powder fluidized immersion coating apparatus that forms a coating film on the tank, the tank is partitioned into upper and lower chambers by a partition wall that allows air to pass without passing the powder coating, and the bottom of the upper chamber has a required height. A plurality of partitioning members are arranged in the upper chamber, and the powder paint supplied to the lower chamber and stored in the upper chamber is floated in the upper chamber by the air passing through the partition.
【００１１】上室内底部を所要高さに複数に仕切る仕切
り体を配設したので、上室内に落下した切子等の比較的
重量のある異物は、この仕切り体内に沈み込み、若干の
浮遊をするだけであるので、仕切り体の上方にまで浸漬
される被塗物には付着せず、異物の付着のない良好な塗
膜が得られる。なお、上記塗装装置において、鋳造装置
近傍に隣接配置させることを可能にすべく、移動可能手
段を設けると好適である。これにより、鋳造装置の近く
まで移動させて、鋳造直後の鋳造品にほぼ連続して塗装
を施すことができる。[0011] Since a plurality of partitions are provided for partitioning the bottom of the upper chamber into a plurality of required heights, relatively heavy foreign objects such as cut pieces falling into the upper chamber sink into the partitions and float slightly. Therefore, a good coating film free of foreign matter and not adhered to an object to be immersed up to above the partition body can be obtained. In addition, in the said coating apparatus, it is preferable to provide a movable means so that it can be arrange | positioned adjacent to a casting apparatus. Thus, the casting can be moved to the vicinity of the casting apparatus, and the cast product immediately after casting can be coated almost continuously.
【００１２】[0012]
【発明の実施の形態】以下、本発明の好適な実施の形態
を添付図面に基づいて詳細に説明する。図１は粉体流動
浸漬塗装装置３０を示す。３２はタンクである。タンク
３２は、下部にフランジ部３２ａを有する筒状部３２ｂ
と、上部にフランジ部３２ｃを有する有底容器部３２ｄ
とが、隔壁３４を両フランジ部３２ａ、３２ｃ間に介在
させて、フランジ部３２ａ、３２ｃ間をボルト３６によ
り締めつけることにより連結されてなる。Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a powder fluidized immersion coating apparatus 30. 32 is a tank. The tank 32 has a cylindrical portion 32b having a flange portion 32a at a lower portion.
And a bottomed container part 32d having a flange part 32c at the top
Are connected by interposing a partition wall 34 between the flange portions 32a and 32c and tightening the flange portions 32a and 32c with bolts 36.
【００１３】したがって、タンク３２は、隔壁３４によ
り、上室３８と下室４０とに仕切られている。隔壁３４
は、上室３８に収容する粉体塗料を通過させずエアは上
下に通過させる構造のもの、例えば、多孔板とか、ガラ
スウールの織布とかで形成されている。なお、隔壁３４
が粉体塗料の重量によって弛まないように、隔壁３４下
面側を支持体（図示せず）により適宜支えるようにする
とよい。Accordingly, the tank 32 is partitioned by the partition 34 into an upper chamber 38 and a lower chamber 40. Partition wall 34
Is made of a structure that allows air to pass up and down without passing the powder coating material accommodated in the upper chamber 38, for example, a perforated plate or a woven cloth of glass wool. The partition 34
It is preferable that the lower surface of the partition wall 34 is appropriately supported by a support (not shown) so as not to be loosened by the weight of the powder coating.
【００１４】下室４０内には、送気パイプ４２が、横方
向（水平）に向けて、下室４０の上下方向のほぼ中央に
位置して配置されている。送気パイプ４２の一端側は閉
塞され、下面側には、所定の間隔をおいてエア噴出用の
小孔（図示せず）が、送気パイプ４２のほぼ全長にわた
って複数個設けられている。送気パイプ４２の他端側は
下室４０の側壁を気密に貫通して外部に突出している。
この送気パイプ４２の他端側には、コンプレッサー（エ
ア供給源）４４からの圧縮エアを送気パイプ４２に送る
ためのエアホース４６が連結されている。４８はバル
ブ、５０は圧縮エア中の水分を除去するためのフィルタ
ーである。また下室４０内には、上下方向に一定の幅で
伸び、下室４０内で少なくとも送気パイプ４２の上方空
間を仕切る複数枚の仕切り板５２が平行に配設されてい
る。In the lower chamber 40, an air supply pipe 42 is disposed at a substantially vertical center of the lower chamber 40 in the horizontal direction (horizontal). One end of the air supply pipe 42 is closed, and a plurality of small holes (not shown) for ejecting air are provided on the lower surface side at predetermined intervals over substantially the entire length of the air supply pipe 42. The other end of the air supply pipe 42 penetrates the side wall of the lower chamber 40 in an airtight manner and protrudes to the outside.
An air hose 46 for sending compressed air from a compressor (air supply source) 44 to the air supply pipe 42 is connected to the other end of the air supply pipe 42. 48 is a valve, and 50 is a filter for removing moisture in the compressed air. In the lower chamber 40, a plurality of partition plates 52 extending in a vertical direction at a constant width and partitioning at least a space above the air supply pipe 42 in the lower chamber 40 are arranged in parallel.
【００１５】上室３８内底部には、上室３８底部を複数
に仕切る仕切り体５４が配設されている。仕切り体５４
は所要の高さ、例えば１０ｃｍ程度の高さに形成されて
いる。仕切り体５４は図３に示すように格子状のものに
一体に形成し、上室３８に出し入れ自在に設けると好適
である。仕切り体５４は、隔壁３４上に載置するように
してもいが、隔壁３４に重量の負担をかけないように、
上室３８壁面に仕切り体５４を支持する支持突起（図示
せず）を設けて支持するようにしてもよい。あるいは単
に複数の板を平行に配置してもよい。この場合も上室３
８に上下方向のガイド溝（図示せず）を設けるなどして
出し入れ自在に設けると都合がよい。塗装装置３０の下
面側には複数個のキャスター５７等の移動可能手段が設
けられ、これにより塗装装置３０は自在に床面上を移動
可能である。移動可能手段としてはキャスターの他に、
レール上を走行可能な車輪など種々の手段が可能であ
る。A partition member 54 for dividing the bottom of the upper chamber 38 into a plurality of sections is provided at the bottom of the upper chamber 38. Partition body 54
Is formed at a required height, for example, about 10 cm. As shown in FIG. 3, it is preferable that the partition member 54 be formed integrally with a lattice-like member and provided so as to be able to be taken in and out of the upper chamber 38. The partition body 54 may be placed on the partition wall 34, but in order not to put a load on the partition wall 34,
A support protrusion (not shown) for supporting the partition member 54 may be provided on the wall surface of the upper chamber 38 to support the partition member 54. Alternatively, a plurality of plates may simply be arranged in parallel. In this case also upper room 3
It is convenient to provide a vertical guide groove (not shown) at 8 so that it can be freely inserted and removed. Movable means such as a plurality of casters 57 are provided on the lower surface side of the coating device 30, so that the coating device 30 can freely move on the floor surface. As a movable means, besides casters,
Various means are possible, such as wheels that can run on rails.
【００１６】次に、上記好適な塗装装置３０を用いて、
鋳造品に塗装する本発明に係る粉体流動浸漬塗装方法を
説明する。塗装装置３０の上室３８内には所要量の粉体
塗料５６を収容しておく。バルブ４８を緩めて、エア供
給源４４からエアホース４６を介して圧縮エアを送気パ
イプ４２に送る。送気パイプ４２下面側には所要間隔を
おいて複数の小孔が設けられているから、圧縮エアは矢
印のように下方に向かって噴出される。Next, using the preferred coating apparatus 30,
The method of powder immersion coating according to the present invention for coating a cast product will be described. A required amount of the powder coating 56 is stored in the upper chamber 38 of the coating apparatus 30. The valve 48 is loosened to send compressed air from the air supply source 44 to the air supply pipe 42 via the air hose 46. Since a plurality of small holes are provided at a required interval on the lower surface side of the air supply pipe 42, the compressed air is jetted downward as indicated by the arrow.
【００１７】この下方に向かって噴出されたエアは下室
４０内の底面にぶつかって反射され、上昇して隔壁３４
を通過し、上室３８内に導かれることから、上室３８内
に導入されるエアが平均化し、上室３８内の粉体塗料５
６はタンク３２中央、周辺部で均一に浮遊される。この
場合、タンク３２の下室４０内に、複数枚の仕切り板５
２を設けると、下室４０内で上昇するエアが整流され、
上室３８内の粉体塗料５６をさらに均一に浮遊させるこ
とができる。また下室４０からのエアをより均一にする
ために、下室４０内に配置する送気パイプ４２は適宜複
数本所定間隔をおいて平行に配置する（図示せず）よう
にすると好適である。The air jetted downward hits the bottom surface in the lower chamber 40 and is reflected, rises, and rises.
And is guided into the upper chamber 38, so that the air introduced into the upper chamber 38 is averaged, and the powder coating 5
6 is uniformly floated at the center and the periphery of the tank 32. In this case, a plurality of partition plates 5 are provided in the lower chamber 40 of the tank 32.
2, the air rising in the lower chamber 40 is rectified,
The powder coating 56 in the upper chamber 38 can be floated more uniformly. Further, in order to make the air from the lower chamber 40 more uniform, it is preferable that a plurality of air supply pipes 42 arranged in the lower chamber 40 are appropriately arranged in parallel at predetermined intervals (not shown). .
【００１８】上記塗装装置３０は鋳造装置（図示せず）
の近傍に配置される。塗装装置３０の下面にはキャスタ
ー５７等の移動可能手段が設けられているから、塗装を
開始しようとする場合に、鋳造装置の近くに容易に移動
可能である。鋳造装置では常法により鋳造品の鋳造を行
う。本発明では、鋳造品５８を鋳型から取り出した後、
１００〜１５０℃程度の温度（通常の予熱温度）まで冷
却して後、直ちにタンク３２の上室３８の上記浮遊して
いる粉体塗料５６内に浸漬するようにしている。この場
合、鋳造品５８を鋳型から取り出した後、冷却水槽（図
示せず）に入れて、水冷を経て予熱温度まで冷却するよ
うにすると、冷却時間も短縮できて好適である。The coating device 30 is a casting device (not shown).
Is arranged in the vicinity of. Since a movable means such as a caster 57 is provided on the lower surface of the coating device 30, the coating device 30 can be easily moved near the casting device when starting the coating. In a casting apparatus, a cast product is cast by an ordinary method. In the present invention, after removing the casting 58 from the mold,
After cooling to a temperature of about 100 to 150 ° C. (normal preheating temperature), it is immediately immersed in the floating powder coating material 56 in the upper chamber 38 of the tank 32. In this case, it is preferable that the cast product 58 be taken out of the mold, placed in a cooling water tank (not shown), and cooled to the preheating temperature through water cooling, because the cooling time can be shortened.
【００１９】予熱温度まで冷却された鋳造品５８は、チ
ャック装置６０等により、湯口等の塗装の必要でない箇
所を把持し、図１に示すように、塗装装置３０上方まで
搬送した後、チャック装置６０を下降させて、鋳造品５
８を浮遊している粉体塗料５６中に浸漬させる。浸漬時
間は数秒でよい。鋳造品５８の外表面に塗料が付着し、
溶融し、この溶融した塗料の上にさらに粉体塗料が付着
し、所要厚さの塗膜が形成される。鋳型から取り出した
直後の鋳造品の表面は酸化皮膜もほとんど形成されてお
らず、加工油等の付着もないので、そのまま塗膜が密着
性よく形成される。また、鋳造時の昇温状態を利用し、
加熱することなく冷却して予熱温度までもってくるの
で、加熱のための予熱炉は必要でなく、省エネルギーも
図れる。所要時間経過後、鋳造品５８を粉体塗料中から
引き上げた際には、鋳造品５８を揺するようにして、余
分に付着している粉体塗料を振り落とすようにするとよ
い。The cast product 58 cooled to the preheating temperature is gripped by a chuck device 60 or the like at a place such as a sprue that does not require coating, and conveyed to a position above the coating device 30 as shown in FIG. Lower 60 to cast product 5
8 is immersed in the floating powder coating material 56. The immersion time may be a few seconds. Paint adheres to the outer surface of the casting 58,
The powder coating is melted, and the powder coating further adheres to the melted coating to form a coating film having a required thickness. Immediately after being removed from the mold, the surface of the casting has almost no oxide film formed thereon and no adhesion of processing oil or the like, so that the coating film is formed with good adhesion as it is. Also, using the temperature rise state during casting,
Since it is cooled without heating and brought to the preheating temperature, a preheating furnace for heating is not required, and energy can be saved. When the casting 58 is pulled out of the powder coating after the required time has elapsed, the casting 58 may be shaken to shake off any extra powder coating.
【００２０】上記のようにして、鋳造品５８を浮遊して
いる粉体塗料中に浸漬するだけで十分良好な塗膜の形成
が行えた。従来のように、後加熱によりさらに焼き付け
を行ってもよいが、通常は不要である。なお、上室３８
内底部を所要高さに複数に仕切る仕切り体５４を配設し
たので、上室３８内部に切子等の異物が落下した場合に
あっても、異物はこの仕切り体５４内に沈み込み、若干
の浮遊をするだけであるので、仕切り体５４の上方にま
で浸漬される鋳造品５８には付着せず、異物の付着のな
い良好な塗膜が得られた。異物の除去には、仕切り体５
４を上室３８から取り外し、内部を清掃することによっ
て取り除ける。As described above, a sufficiently good coating film could be formed only by immersing the cast product 58 in the floating powder coating material. As in the prior art, further baking may be performed by post-heating, but is usually unnecessary. The upper room 38
Since the partitioning body 54 for partitioning the inner bottom into a required height is provided, even if foreign matter such as a facet falls inside the upper chamber 38, the foreign matter sinks into the partitioning body 54 and slightly. Since it only floated, it did not adhere to the casting 58 immersed above the partition 54, and a good coating film free of foreign matter was obtained. For removing foreign matter, the partition 5
4 can be removed from the upper chamber 38 and removed by cleaning the inside.
【００２１】上記鋳造品５８を冷却して到達する予熱温
度は低すぎると粉体塗料が鋳造品５８表面に付着せず、
塗膜が形成されない。また高すぎると、いわゆるふくれ
が生じて剥がれたり、炭化するので注意を要する。しか
しながら、粉体塗料の種類にもよるが、予熱温度は数１
０℃程度の幅は許容され、したがって、それ程慎重にな
る必要はない。例えば、プラスコートＰＰＡ５７１（商
品名）の粉体塗料は、酸変成ポリオレフィンのポリマー
アロイをベースにしたものであるが、被塗物の予熱温度
は２２０〜３２０℃の許容幅がある。塗膜の厚さは、浸
漬時間や冷却による予熱温度を制御することにより可能
となる。If the preheating temperature reached by cooling the casting 58 is too low, the powder coating does not adhere to the surface of the casting 58,
No coating film is formed. If it is too high, caution is required because so-called blisters occur and peel off or carbonize. However, depending on the type of powder coating, the preheating temperature is several tens.
Widths on the order of 0 ° C. are acceptable and therefore do not need to be very conservative. For example, the powder coating of Plus Coat PPA571 (trade name) is based on a polymer alloy of an acid-modified polyolefin, and the preheating temperature of an object to be coated has an allowable range of 220 to 320 ° C. The thickness of the coating can be controlled by controlling the immersion time and the preheating temperature by cooling.
【００２２】以上本発明につき好適な実施例を挙げて種
々説明したが、本発明はこの実施例に限定されるもので
はなく、発明の精神を逸脱しない範囲内で多くの改変を
施し得るのはもちろんである。Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to these embodiments, and it is noted that many modifications can be made without departing from the spirit of the invention. Of course.
【００２３】[0023]
【発明の効果】本発明に係る粉体流動浸漬塗装方法によ
れば、鋳造品を鋳型から取り出した後、予熱温度まで冷
却して後、直ちにタンク内に浸漬するようにしているの
で、鋳造品の表面は酸化皮膜もほとんど形成されておら
ず、加工油等の付着もなく、そのまま塗膜が密着性よく
形成される。また、鋳造時の昇温状態を利用し、加熱す
ることなく冷却して予熱温度までもってくるので、加熱
のための予熱炉は必要でなく、省エネルギーも図れると
いう有利な効果を有する。鋳造品を鋳型から取り出した
後、水冷を経て前記予熱温度まで冷却するようにする
と、冷却時間も短縮できて好適である。また本発明に係
る粉体流動浸漬塗装装置によれば、横方向に配設された
送気パイプから下向きにエアが吹き出され、このエアが
下室の底面にぶつかって反射され、上昇して隔壁を通過
し、上室内に導かれることから、上室内に導入されるエ
アが平均化し、上室内の粉体塗料をタンク中央、周辺部
で均一に浮遊させることができる。この場合、タンクの
下室内に、上下方向に一定の幅で伸び、少なくとも前記
送気パイプの上方空間を仕切る複数枚の仕切り板を設け
ると、下室内で上昇するエアが整流され、さらに上室内
の粉体塗料を均一に浮遊させることができる。また本発
明に係る粉体流動浸漬塗装装置では、上室内底部を所要
高さに複数に仕切る仕切り体を配設したので、上室内に
落下した切子等の比較的重量のある異物は、この仕切り
体内に沈み込み、若干の浮遊をするだけであるので、仕
切り体の上方にまで浸漬される被塗物には付着せず、異
物の付着のない良好な塗膜が得られる。また、上記塗装
装置において、移動可能手段を設けることにより、鋳造
装置の近くまで移動させて、鋳造直後の鋳造品にほぼ連
続して塗装を施すことができる。According to the powder flow immersion coating method of the present invention, the cast product is taken out of the mold, cooled to the preheating temperature, and immediately immersed in the tank. Has almost no oxide film formed on the surface and no adhesion of processing oil or the like, and the coating film is formed with good adhesion as it is. In addition, since the preheating temperature is obtained by cooling without heating by using the temperature rising state at the time of casting, a preheating furnace for heating is not required, and there is an advantageous effect that energy can be saved. It is preferable that the casting be taken out of the mold and then cooled to the preheating temperature via water cooling since the cooling time can be shortened. According to the powder fluid immersion coating apparatus according to the present invention, air is blown downward from an air supply pipe disposed in a horizontal direction, and the air hits the bottom surface of the lower chamber, is reflected, rises, and rises. , And is guided into the upper chamber, so that the air introduced into the upper chamber is averaged, and the powder coating material in the upper chamber can be evenly floated at the center and the periphery of the tank. In this case, if a plurality of partition plates extending in the vertical direction at a constant width in the lower chamber of the tank and partitioning at least the space above the air supply pipe are provided, the air rising in the lower chamber is rectified, and the upper chamber is further rectified. Powder coating can be evenly floated. Further, in the powder fluidized immersion coating apparatus according to the present invention, since the partitioning body for partitioning the bottom of the upper chamber into a plurality of pieces at a required height is provided, relatively heavy foreign substances such as cut pieces falling into the upper chamber are not separated from the partitioning body. Since it sinks into the body and only floats slightly, it does not adhere to the object to be immersed above the partition body, and a good coating film free of foreign matter can be obtained. Further, in the above-mentioned coating apparatus, by providing the movable means, the coating apparatus can be moved to the vicinity of the casting apparatus, and the coating can be applied almost continuously to the casting immediately after casting.
【図１】粉体流動浸漬塗装装置の説明図である。FIG. 1 is an explanatory view of a powder fluidized immersion coating apparatus.
【図２】従来の粉体流動浸漬塗装装置の説明図である。FIG. 2 is an explanatory view of a conventional powder fluidized immersion coating apparatus.
【図３】仕切り体の一例を示す斜視図である。FIG. 3 is a perspective view showing an example of a partition body.
３０ 粉体流動浸漬塗装装置 ３２ タンク ３４ 隔壁 ３８ 上室 ４０ 下室 ４２ 送気パイプ ４４ エア供給源 ５２ 仕切り板 ５４ 仕切り体 ５６ 粉体塗料 ５７ キャスター（移動可能手段の一例） ５８ 鋳造品（被塗物） ６０ チャック装置 Reference Signs List 30 powder flowing immersion coating device 32 tank 34 partition wall 38 upper chamber 40 lower chamber 42 air supply pipe 44 air supply source 52 partition plate 54 partition body 56 powder paint 57 caster (an example of movable means) 58 casting (coating) Thing) 60 chuck device
Claims (6)
粉体塗料を浮遊させ、タンク内にあらかじめ予熱した被
塗物を浸漬して被塗物表面に塗膜を形成する粉体流動浸
漬塗装方法において、 被塗物たる鋳造物を鋳型から取出した後、該鋳造物を加
熱することなく前記予熱温度まで冷却して、該鋳造物を
前記タンク内に浸漬して鋳造物上に塗膜を形成すること
を特徴とする粉体流動浸漬塗装方法。1. A fluid flow dip coating method in which air is blown into a tank to float a powder coating in the tank, and a preheated coating is immersed in the tank to form a coating on the surface of the coating. In the method, after removing the casting to be coated from the mold, the casting is cooled to the preheating temperature without heating, and the casting is immersed in the tank to form a coating film on the casting. A powder fluidized immersion coating method characterized by forming.
経て前記予熱温度まで冷却することを特徴とする請求項
１記載の粉体流動浸漬塗装方法。2. The powder flowing immersion coating method according to claim 1, wherein, after removing the casting from the mold, the casting is cooled to the preheating temperature via water cooling.
粉体塗料を浮遊させ、タンク内にあらかじめ予熱した被
塗物を浸漬して被塗物表面に塗膜を形成する粉体流動浸
漬塗装装置において、 前記タンクは、粉体塗料を通過させずエアは通過させる
隔壁により上下室に仕切られ、下室に、エア供給源に接
続可能で、下向きに圧縮エアを吹き出す送気パイプが横
方向に配設されて成り、下室から隔壁を通過したエアに
より上室に収納される粉体塗料を上室内で浮遊させるこ
とを特徴とする粉体流動浸漬塗装装置。3. Powder flow immersion coating in which air is blown into a tank to float the powder coating in the tank, and a preheated coating is immersed in the tank to form a coating on the surface of the coating. In the apparatus, the tank is divided into an upper chamber and a lower chamber by a partition that allows air to pass without passing powder paint, and an air supply pipe that can be connected to an air supply source and blows compressed air downward in the lower chamber. A powder fluid immersion coating apparatus, wherein the powder paint contained in the upper chamber is floated in the upper chamber by air passing through the partition from the lower chamber.
の幅で伸び、少なくとも前記送気パイプの上方空間を仕
切る複数枚の仕切り板が配設されていることを特徴とす
る請求項３記載の粉体流動浸漬塗装装置。4. A plurality of partition plates extending at a constant width in the vertical direction and partitioning at least a space above the air supply pipe are provided in a lower chamber of the tank. The powder fluidized immersion coating apparatus according to the above.
粉体塗料を浮遊させ、タンク内にあらかじめ予熱した被
塗物を浸漬して被塗物表面に塗膜を形成する粉体流動浸
漬塗装装置において、 前記タンクは、粉体塗料を通過させずエアは通過させる
隔壁により上下室に仕切られ、上室内底部に、該上室底
部を所要高さに複数に仕切る仕切り体が配設されて成
り、下室に供給され、隔壁を通過したエアにより上室に
収納される粉体塗料を上室内で浮遊させることを特徴と
する粉体流動浸漬塗装装置。5. Powder flowing immersion coating in which air is blown into a tank to float a powder coating in the tank, and a preheated coating is immersed in the tank to form a coating on the surface of the coating. In the device, the tank is partitioned into upper and lower chambers by a partition that allows air to pass without passing powder paint, and at the bottom of the upper chamber, a partition body that partitions the bottom of the upper chamber into a required height is disposed. A powder fluid immersion coating apparatus characterized in that the powder paint supplied to the lower chamber and stored in the upper chamber by the air passed through the partition wall is floated in the upper chamber.
能とすべく、移動可能手段を設けたことを特徴とする請
求項３、４または５記載の粉体流動浸漬塗装装置。6. The powder flowing immersion coating apparatus according to claim 3, wherein a movable means is provided so as to be able to be disposed adjacent to the casting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11156790A JP2000343013A (en) | 1999-06-03 | 1999-06-03 | Powder fluidized dip coating method and powder fluidized dip coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11156790A JP2000343013A (en) | 1999-06-03 | 1999-06-03 | Powder fluidized dip coating method and powder fluidized dip coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000343013A true JP2000343013A (en) | 2000-12-12 |
Family
ID=15635373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11156790A Pending JP2000343013A (en) | 1999-06-03 | 1999-06-03 | Powder fluidized dip coating method and powder fluidized dip coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000343013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100510081B1 (en) * | 2002-08-31 | 2005-08-24 | 현찬경 | method and device for panel coating in panel water tank |
-
1999
- 1999-06-03 JP JP11156790A patent/JP2000343013A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100510081B1 (en) * | 2002-08-31 | 2005-08-24 | 현찬경 | method and device for panel coating in panel water tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100666513B1 (en) | System for catalytic coating of a substrate | |
| EP2042245B1 (en) | Box cleaner for cleaning wafer shipping box | |
| US20080145531A1 (en) | Method for Catalyst Coating of a Substrate | |
| WO1998019333A1 (en) | Processor and processing method, and robot device | |
| JP2000343013A (en) | Powder fluidized dip coating method and powder fluidized dip coating device | |
| US11692280B2 (en) | Electrodeposition coating method and electrodeposition coating apparatus | |
| JPH06179991A (en) | Device and method for cleaning | |
| JP2007297687A (en) | Coating treatment device and coating treatment method | |
| US5423131A (en) | Apparatus for drying cleaned workpieces | |
| KR101779501B1 (en) | Plating solution level maintenance apparatus | |
| JP3447881B2 (en) | Method for drying semiconductor wafer | |
| US8272344B2 (en) | Wet coating system having annealing chamber | |
| JP2006272298A (en) | Container washing device | |
| JPS644600B2 (en) | ||
| JP6927065B2 (en) | Electrodeposition coating method and electrodeposition coating equipment | |
| CN115475714B (en) | Metal product plastic spraying assembly line and plastic spraying process thereof | |
| JPH0121021Y2 (en) | ||
| JP2502325B2 (en) | Device for removing coating film on the inner peripheral surface of the drum end | |
| JPS6145155Y2 (en) | ||
| JPH02285095A (en) | Device for electrodeposition-coating electrical appliance case | |
| JPH02243798A (en) | Electrodeposition coating device for electrical equipment case | |
| JP2016140773A (en) | Cleaning device of fixture for painting | |
| JPH04118067A (en) | Coating device | |
| JPS632669B2 (en) | ||
| JP2565637Y2 (en) | painting booth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060523 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20081212 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090106 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090213 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090811 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091208 |