CN214718116U

CN214718116U - Hot flash-dry system for coating of hub water-based paint

Info

Publication number: CN214718116U
Application number: CN202120601773.0U
Authority: CN
Inventors: 张官浩; 袁浩
Original assignee: Xiamen Sunrise Group Co ltd
Current assignee: Xiamen Sunrise Group Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-11-16
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a wheel hub water based paint application heat flash dry system, including drying chamber and the levelling chamber who link up each other, drying chamber and levelling chamber in be equipped with the wheel hub transfer chain, the inboard bottom of drying chamber is equipped with the blast pipe, and the inboard top is equipped with the return air duct, the outside is equipped with circulating hot air mechanism, circulating hot air mechanism's air-out end with the blast pipe is linked together, the air inlet end with the return air duct is linked together, the position department that the levelling chamber inboard is close to the drying chamber is provided with a plurality of by the drying chamber to the indoor air-blower of carrying hot-blast of levelling. The utility model discloses can form the field of preheating of one section temperature gradual change along wheel hub direction of feed in the flow flat indoor, promote the quick dehydration flash-dry of water paint coating, avoid getting into drying chamber after drying because insufficient dehydration, viscosity decline lead to sagging smooth lacquer, go up the thick not enough of membrane, the thick inhomogeneous scheduling problem of membrane, coating drying rate can not be too fast simultaneously, is difficult to produce the orange peel. The coating quality and efficiency are guaranteed.

Description

Hot flash-dry system for coating of hub water-based paint

Technical Field

The utility model relates to a wheel hub application technical field, in particular to wheel hub water based paint application heat flash dry system.

Background

In recent years, with the enactment and implementation of increasingly strict national environmental regulations, the requirement of coating is higher and higher. Many cities have issued policies about 'oil to water' successively, and related restrictions are imposed on oil-based paints, and water-based paints are used to replace oil-based paints, and the trend of 'oil to water' of paints is a trend. However, the conversion from oil to water is not simply performed by changing the paint, and the matched painting equipment also needs to be correspondingly improved.

For coating steel hubs, many manufacturers currently employ two coats of cathodic electrocoat primer and liquid stoving varnish to prevent corrosion. The water-based paint is used for replacing the oil-based paint on a traditional catenary baking paint line suitable for the oil-based paint, when baking paint is processed, the water-based paint takes water as a solvent, and has the characteristics of low volatilization rate and high evaporation latent heat, in the process of leveling, the solvent volatilization speed is low, the dehydration degree of the coating is insufficient, the viscosity of the water-based paint coating is reduced after the water-based paint enters a high-temperature baking room and is quickly heated, the problems of sagging and sliding paint, insufficient film thickness, uneven film thickness and the like easily occur after the baking paint is finished, and the wrapping performance of hole edge coatings such as mesopores, air holes and the like is poor. Therefore, how to avoid the above-mentioned situation and promote the "oil-to-water" transformation of the coating becomes a problem.

SUMMERY OF THE UTILITY MODEL

To the problem, an object of the utility model is to provide a better hot flash dry system of wheel hub water based paint application effect.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a hot flash dry system of wheel hub water based paint application, is including the drying chamber and the levelling chamber that link up each other, drying chamber and levelling chamber in be equipped with the wheel hub transfer chain, the inboard bottom of drying chamber is equipped with the blast pipe, and the inboard top is equipped with the return air duct, and the outside is equipped with circulating hot air mechanism, circulating hot air mechanism's air-out end with the blast pipe is linked together, the air inlet end with the return air duct is linked together, the position department that the levelling chamber inboard is close to the drying chamber is provided with a plurality of air-blowers that carry hot-blast by the drying chamber to the levelling chamber.

Furthermore, the number of the air blowers is two, and the two air blowers are respectively arranged on two side walls of the inner part of the leveling chamber.

Furthermore, a plurality of air supply outlets are formed in the top of the air supply pipe, and plate type filters and pressing frames for fixing the plate type filters are arranged at the air supply outlets. The plate type filter is additionally arranged to adsorb the discharged gas so as to reduce the direct discharge of the malodorous gas.

Furthermore, the circulating hot air mechanism comprises a heating device and a circulating fan, and a heat source of the heating device is natural gas.

Further, the hub conveying line is a suspension conveying line.

The hub conveying line sequentially penetrates through the paint spraying chamber, the leveling chamber and the drying chamber.

The utility model discloses following beneficial effect has: 1. the hot air dried at higher temperature in the drying chamber close to the leveling chamber is blown to the leveling chamber through the air blower, a preheating field with gradually increased temperature is formed in the flow flat chamber along the feeding direction of the hub, the preheating can be gradually carried out, the rapid dehydration of the water-based paint coating is promoted, and after the water-based paint coating enters the drying chamber for drying, the situations of sagging and sliding paint, insufficient film thickness, uneven film thickness and the like are greatly reduced; 2. the leveling chamber is gradually preheated, so that the rapid volatilization of water in the water-based paint coating can be promoted, and the orange peel phenomenon caused by too rapid drying and poor leveling property can be avoided; 3. can preheat the dehydration fast before the baking finish, the levelling time is shorter, and is less to the influence of application efficiency, and the productivity has certain guarantee.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the drying chamber structure of the present invention;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

fig. 4 is a top view of the structure of the drying chamber of the present invention;

fig. 5 is a side view of the structure of the drying chamber of the present invention.

Description of the main component symbols: 1. a hub conveying line; 2. a paint spray booth; 3. a leveling chamber; 4. a blower; 5. a drying chamber; 6. an air supply pipe; 7. an air supply outlet; 8. a plate filter; 9. pressing the frame; 10. a return air duct; 11. and a circulating hot air mechanism.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

1-5, including drying chamber 5 and the levelling chamber 3 that link up each other, be equipped with wheel hub transfer chain 1 in drying chamber 5 and the levelling chamber 3, the inboard bottom of drying chamber 5 is equipped with blast pipe 6, the inboard top is equipped with return air duct 10, the outside is equipped with circulating hot air mechanism 11, circulating hot air mechanism 11's air-out end is linked together with blast pipe 6, the air inlet end is linked together with return air duct 10, the inboard position department that is close to drying chamber 5 of levelling chamber 3 is provided with a plurality of air-blowers 4 that carry hot-blast by drying chamber 5 to levelling chamber 3.

The number of the air blowers 4 is two and the two air blowers are respectively arranged on two side walls inside the leveling chamber 3. The top of the blast pipe 6 is provided with a plurality of blast ports 7, and the positions of the blast ports 7 are provided with plate type filters 8 and pressing frames 9 for fixing the plate type filters 8. The circulating hot air mechanism 11 comprises a heating device and a circulating fan, and the heat source of the heating device is natural gas. The wheel hub conveying line 1 is a suspension conveying line. Still including the paint spray booth 2 that is used for the wheel hub spraying, paint spray booth 2 link up with levelling room 3 mutually, and wheel hub transfer chain 1 passes paint spray booth 2, levelling room 3 and drying chamber 5 in proper order.

When the hub finish paint is coated, the hub subjected to electrophoretic primer treatment enters the paint spraying chamber 2 to be sprayed with water-based paint, and the water-based paint is conveyed into the leveling chamber 3 through the hub conveying line 1 after being sprayed. Because the air blower 4 arranged in the leveling chamber 3 can blow the hot air dried at higher temperature in the drying chamber 5 to the leveling chamber 3, the temperature of the part close to the drying chamber 5 in the leveling chamber 3 is higher than that of the part close to the spray-painting chamber 2, and a preheating field with gradually increased temperature is formed along the conveying direction of the hub. Therefore, in the leveling chamber 3, the temperature of the hub gradually rises, and the sprayed water-based paint coating is fully dehydrated under the action of hot air and then is conveyed into the drying chamber 5 for baking.

Under the effect of dehydration and leveling in the leveling chamber 3, the quality problem of the water paint coating after drying is less, the problems of sagging and slippery paint, insufficient upper film thickness, uneven film thickness and the like which are easy to appear in the process of changing hub coating line oil into water conversion can be avoided, and the coating quality is good and the coating efficiency is high.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a hot flash dry system of wheel hub water based paint application which characterized in that: including the drying chamber and the levelling chamber that link up each other, drying chamber and levelling chamber in be equipped with the wheel hub transfer chain, the inboard bottom of drying chamber is equipped with the blast pipe, and the inboard top is equipped with the return air duct, and the outside is equipped with circulating hot air mechanism, circulating hot air mechanism's air-out end with the blast pipe is linked together, the air inlet end with the return air duct is linked together, the position department that levelling chamber inboard is close to the drying chamber is provided with a plurality of air-blowers that carry hot-blast by the drying chamber to the levelling chamber.

2. The hub water paint coating hot flash drying system of claim 1, wherein: the number of the air blowers is two, and the two air blowers are respectively arranged on two side walls of the inner part of the leveling chamber.

3. The hub water paint coating hot flash drying system of claim 1, wherein: the top of the blast pipe is provided with a plurality of blast outlets, and the blast outlets are provided with plate filters and pressing frames for fixing the plate filters.

4. The hub water paint coating hot flash drying system of claim 1, wherein: the circulating hot air mechanism comprises a heating device and a circulating fan, and a heat source of the heating device is natural gas.

5. The hub water paint coating hot flash drying system of claim 1, wherein: the hub conveying line is a suspension conveying line.

6. The hub water paint coating hot flash drying system of claim 1, wherein: the hub conveying line sequentially penetrates through the paint spraying chamber, the leveling chamber and the drying chamber.