CN220520662U - Film pretreatment device for vehicle - Google Patents

Abstract

The utility model provides a film pretreatment device for a vehicle, and belongs to the technical field of automobile coating. The thin film pretreatment device comprises: the electrophoresis tank is provided with a film liquid and is provided with an inlet notch and an outlet notch; the laminar flow pipes are arranged at the groove bodies at the two sides of the groove outlet opening and extend towards the direction of the groove outlet opening, and are positioned below the liquid level of the film liquid and have a preset distance from the liquid level; and the laminar flow nozzle is arranged on the laminar flow pipe and communicated with the laminar flow pipe, and the laminar flow nozzle is arranged to blow out liquid in the laminar flow pipe to the notch. The utility model solves the problems that the strip quality defect of the automobile body after electrophoresis in the prior art exists, manual polishing treatment is needed, and the cost of manual and polished materials is increased.

Description

Film pretreatment device for vehicle

Technical Field

The utility model relates to the technical field of automobile coating, in particular to a film pretreatment device of a vehicle.

Background

At present, more and more automobile coating pretreatment adopts a thin film technology, namely a layer of nano-scale zirconia ceramic film is generated on the surface of a metal of a car body through chemical reaction. Like traditional phosphating process, the film laminar flow pipe is arranged at the groove inlet end, the direction of the laminar flow nozzle faces the inlet, the distance between the laminar flow nozzle and the liquid level is 400mm, and the surface flow direction of the groove liquid is anticlockwise and opposite to the running direction of the vehicle body. The laminar flow is arranged in the film tank to fully ensure the fluidity of the tank liquid, and chemical reaction byproducts are taken away in time when the film is processed, so that the film forming reaction on the metal surface of the vehicle body is continuously and uniformly carried out, a compact and uniform film coating is obtained, and preparation is made for subsequent electrophoresis.

Because the film bath liquid component is different from the phosphating bath liquid component, resin components are added to improve the film forming quality of the film, the organic matters are easy to generate foam, and a laminar flow nozzle is close to the liquid level (only 400 mm), so that the laminar flow nozzle generates foam when spraying the bath liquid to the surface; when the automobile body goes out the film groove, water in the automobile body flows out from the automobile, falls to the bath liquid level, produces the foam simultaneously, and under anticlockwise laminar flow's effect, the foam flows into the groove end from film groove play groove end flow direction, has the foam on nearly whole surface of water, and when the automobile body goes into the groove, some positions and bath contact, and some positions and foam contact, the contact in-process still accompanies the rupture of foam, causes the film reaction inconsistent, and electrophoresis fringe quality defect appears in the automobile body after the electrophoresis, and this defect needs polishing treatment, has increased manual work and polishing material cost.

Disclosure of Invention

The utility model aims to provide a film pretreatment device for a vehicle, which solves the problems that the quality defect of stripes of a vehicle body after electrophoresis in the prior art is overcome, manual polishing treatment is needed, and the cost of manual and polished materials is increased.

In particular, the present utility model provides a thin film pretreatment device for a vehicle, comprising:

the electrophoresis tank is provided with a film liquid and is provided with an inlet notch and an outlet notch;

the laminar flow pipes are arranged at the groove bodies at the two sides of the groove outlet opening and extend towards the direction of the groove outlet opening, and are positioned below the liquid level of the film liquid and have a preset distance from the liquid level;

and the laminar flow nozzle is arranged on the laminar flow pipe and communicated with the laminar flow pipe, and the laminar flow nozzle is arranged to blow out liquid in the laminar flow pipe to the notch.

Further, the preset distance is 500mm-800mm.

Further, the laminar flow tube comprises a first sub-laminar flow tube and a second sub-laminar flow tube, and the first sub-laminar flow tube is arranged above the second sub-laminar flow tube.

Further, the laminar flow nozzles are arranged on the laminar flow pipe at intervals.

Further, the laminar flow nozzle is arranged in parallel with the liquid level of the thin film liquid.

Further, the method further comprises the following steps:

the stirring tube is arranged at the bottom of the electrophoresis tank;

and the stirring nozzle is arranged on the stirring pipe and communicated with the stirring pipe, so that the film liquid flows from the outlet notch to the inlet notch.

Further, the method further comprises the following steps:

the honeycomb duct is arranged at the notch;

the diversion nozzle is arranged on the diversion pipe and communicated with the diversion pipe, so that the film liquid flows from the inlet notch to the outlet notch.

Further, the electrophoresis tank is a ship-shaped tank body.

According to the utility model, the laminar flow pipes extending towards the direction of the notch are arranged on the groove bodies at two sides of the notch, the laminar flow pipes are positioned below the film liquid, and the laminar flow nozzles are arranged on the laminar flow pipes, so that the liquid in the laminar flow pipes is sprayed towards the direction of the notch, and then when the automobile body is out of the notch, the film liquid flows out of the automobile and falls onto the liquid surface to form foam, but the clockwise surface laminar flow formed by the spraying of the laminar flow nozzles is immediately pushed onto the slope of the notch, so that the foam cannot contact with the automobile body, and further poor film reaction caused by the foam is avoided, and the problems that the automobile body has stripe quality defect after electrophoresis and needs manual polishing treatment in the prior art are solved, and the cost of manpower and polishing materials is increased.

Furthermore, the boat-shaped electrophoresis tank is arranged, so that the inlet notch and the outlet notch are provided with angles with the tank body, and the laminar flow nozzle can push the dropped film liquid to the outlet notch when spraying the liquid, so that the foam pushed to the slope can be broken in a large amount when reaching the slope, and the foam quantity is further reduced.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

FIG. 1 is a schematic view showing the overall structure of a thin film pretreatment apparatus according to an embodiment of the present utility model;

FIG. 2 is a top view of a thin film pretreatment device according to one embodiment of the present utility model;

in the figure: 1. an electrophoresis tank; 10. a notch is formed; 11. a notch is formed; 2. a laminar flow tube; 20. a first sub-layer flow tube; 21. a second sub-layer flow tube; 22. a laminar flow nozzle; 3. a stirring tube; 30. a stirring nozzle; 4. a flow guiding pipe; 40. a diversion nozzle; 5. a vehicle body.

Detailed Description

In the description of the present embodiment, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

Unless otherwise defined, all terms (including technical and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

FIG. 1 is a schematic view showing the overall structure of a thin film pretreatment apparatus according to an embodiment of the present utility model. FIG. 2 is a top view of a thin film pretreatment device according to one embodiment of the present utility model. In one embodiment, as shown in fig. 1 and 2, the thin film pretreatment device of the vehicle includes an electrophoresis tank 1, and a laminar flow tube 2 disposed within the electrophoresis tank 1. Wherein the electrophoresis tank 1 is provided with an inlet port 10 and an outlet port 11, and a thin film liquid is arranged in the electrophoresis tank 1. The laminar flow tube 2 is arranged at the two side groove bodies of the outlet groove 11 of the electrophoresis tank 1 and extends towards the direction of the outlet groove 11, and in addition, the laminar flow tube 2 is positioned below the liquid level of the film liquid and has a preset distance from the liquid level; the laminar flow tube 2 is provided with a plurality of laminar flow nozzles 22, and the plurality of laminar flow nozzles 22 are communicated with the laminar flow tube 2 and form an included angle with the laminar flow tube 2 so as to blow out the liquid in the laminar flow tube 2 toward the outlet notch 11.

Specifically, a laminar flow pipe 2 positioned below the film liquid is arranged at the notch 11 of the electrophoresis tank 1, the laminar flow pipe 2 extends along the notch 11, and a laminar flow nozzle 22 with an included angle with the laminar flow pipe 2 is arranged on the laminar flow pipe 2, so that the laminar flow nozzle 22 can continuously spray the liquid in the laminar flow pipe 2 to the notch 11, and the liquid dropped by the vehicle body 5 when exiting the electrophoresis tank 1 is reduced, and foam is not formed.

In this embodiment, through set up the laminar flow pipe 2 that extends to notch 11 direction on the cell body of notch 11 both sides, and this laminar flow pipe 2 is located the below of film liquid, and set up laminar flow nozzle 22 on this laminar flow pipe 2, make the liquid in the laminar flow pipe 2 spout to notch 11's direction, and then make automobile body 5 go out when the groove, film liquid flows out from the car, fall to the liquid level, form the foam, but the clockwise surface laminar flow that is sprayed by laminar flow nozzle 22 and is formed immediately pushes away notch 11 department, the foam can not contact with automobile body 5 like this, and then the film reaction defect that the foam arouses has been stopped, thereby solved automobile body 5 and appear the streak quality defect and need artifical polishing processing after the electrophoresis, the problem of manual work and polishing material cost has been increased.

In one embodiment, as shown in fig. 1 and 2, the distance from the laminar flow tube 2 to the liquid surface is 500mm-800mm, and the laminar flow tube 2 includes a first sub-laminar flow tube 20 and a second sub-laminar flow tube 21, and the first sub-laminar flow tube 20 is disposed above the second sub-laminar flow tube 21.

The laminar flow nozzle 22 is disposed on the first sub-laminar flow pipe 20 and the second sub-laminar flow pipe 21 at intervals, and the laminar flow nozzle 22 is disposed parallel to the liquid surface of the thin film liquid.

Specifically, the laminar flow tube 2 includes a first sub-laminar flow tube 20 and a second sub-laminar flow tube 21, and the first sub-laminar flow tube 20 is disposed above the second sub-laminar flow tube 21. Wherein, the first sub-laminar flow pipe 20 and the second sub-laminar flow pipe 21 are respectively provided with a laminar flow nozzle 22 at intervals, and the laminar flow nozzles 22 are arranged in parallel with the liquid level of the film liquid. In addition, the distance between the first sub-laminar flow pipe 20 and the liquid level is 500-570 mm, and the distance between the second sub-laminar flow pipe 21 and the liquid level is 700-800 mm, so that the liquid sprayed by the laminar flow nozzle 22 is below the liquid level, and the generation of foam is reduced.

In this embodiment, by setting the laminar flow tube 2 of the first sub-laminar flow tube 20 and the second sub-laminar flow tube 21, when the vehicle body 5 leaves the electrophoresis tank 1, the dropped liquid can be effectively blown to the notch 11, so that the generation of foam can be more effectively reduced, in addition, the laminar flow nozzle 22 and the liquid level are arranged in parallel, the foam generated when the laminar flow nozzle 22 sprays the liquid can be effectively reduced, and the bad film reaction caused by the foam is further avoided, so that the problems that the vehicle body 5 has stripe quality defect after electrophoresis and needs manual polishing treatment, and the cost of manpower and polishing materials is increased are solved.

In one embodiment, as shown in fig. 1 and 2, the thin film pretreatment device further comprises a stirring tube 3 and a guiding tube 4, wherein the stirring tube 3 is arranged at the bottom of the electrophoresis tank 1, the guiding tube 4 is arranged at the notch 10 of the electrophoresis tank 1, and a stirring nozzle 30 is arranged on the stirring tube 3, the stirring nozzle 30 enables liquid in the stirring tube 3 to be sprayed out towards the notch 10, further enables thin film liquid at the bottom layer of the electrophoresis tank 1 to flow from the notch 11 towards the notch 10, and the guiding tube 4 is also provided with a guiding nozzle 40, so that thin film liquid at the notch 10 flows towards the notch 11, and therefore thin film liquid at the upper layer of the electrophoresis tank 1 flows from the notch 10 towards the notch 11, and accordingly thin film liquid in the whole electrophoresis tank 1 flows in a clockwise direction, as shown by a dotted arrow in fig. 1.

Specifically, the electrophoresis tank 1 is a boat-shaped tank body, so that the inlet notch 10 and the outlet notch 11 have an inclination angle, and the vehicle body 5 can be more stable when entering the electrophoresis tank 1. And be provided with agitator tube 3 in the bottom of electrophoresis tank 1, set up honeycomb duct 4 in the notch 10 department of going into of electrophoresis tank 1, and set up stirring nozzle 30 on agitator tube 3, make the film liquid of electrophoresis tank 1 bottom flow to going into notch 10 department, and also be provided with water conservancy diversion nozzle 40 in honeycomb duct 4 department, make the film liquid of electrophoresis tank 1 upper strata flow from going into notch 10 department to going out notch 11 department, thereby make the film liquid in whole electrophoresis tank 1 form the operating condition that the bottom was clockwise flow as shown by the broken line arrow in fig. 1, and then make automobile body 5 can avoid the production of foam when entering and leaving this electrophoresis tank 1, thereby can effectively reduce the fringe quality defect that appears because of film liquid produces the foam.

In the present embodiment, by providing the boat-shaped electrophoresis tank 1, the vehicle body 5 can be more stable when entering or leaving the electrophoresis tank 1, and the generation of foam can be effectively reduced. In addition, through making the film liquid in the electrophoresis tank 1 flow clockwise for when automobile body 5 goes out the groove, film liquid flows out from the car in, falls to the liquid level, forms the foam, but is immediately sprayed by laminar flow nozzle 22 and forms clockwise surface laminar flow push to play notch 11 department, the foam can not contact with automobile body 5 like this, and then has stopped the film reaction defect that the foam arouses, thereby solved automobile body 5 and appear stripe quality defect and need the manual work to polish the processing after electrophoresis, increased the problem of manual work and polishing material cost.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (8)

1. A thin film pretreatment device for a vehicle, comprising:

the electrophoresis tank is provided with a film liquid and is provided with an inlet notch and an outlet notch;

the laminar flow pipes are arranged at the groove bodies at the two sides of the groove outlet opening and extend towards the direction of the groove outlet opening, and are positioned below the liquid level of the film liquid and have a preset distance from the liquid level;

and the laminar flow nozzle is arranged on the laminar flow pipe and communicated with the laminar flow pipe, and the laminar flow nozzle is arranged to blow out liquid in the laminar flow pipe to the notch.

2. The film pretreatment device as recited in claim 1, wherein the predetermined distance is 500mm to 800mm.

3. The thin film pretreatment device of claim 1, wherein the laminar flow tube comprises a first sub-laminar flow tube and a second sub-laminar flow tube, the first sub-laminar flow tube being disposed above the second sub-laminar flow tube.

4. A thin film pretreatment device as recited in claim 3, wherein said laminar flow nozzles are spaced apart on said laminar flow tube.

5. The thin film pretreatment apparatus according to claim 4, wherein the laminar flow nozzle is disposed in parallel with a liquid surface of the thin film liquid.

6. The thin film pretreatment apparatus according to any one of claims 1 to 5, further comprising:

the stirring tube is arranged at the bottom of the electrophoresis tank;

and the stirring nozzle is arranged on the stirring pipe and communicated with the stirring pipe, so that the film liquid flows from the outlet notch to the inlet notch.

7. The thin film pretreatment device as recited in claim 6, further comprising:

the honeycomb duct is arranged at the notch;

the diversion nozzle is arranged on the diversion pipe and communicated with the diversion pipe, so that the film liquid flows from the inlet notch to the outlet notch.

8. The thin film pretreatment apparatus according to claim 1, wherein the electrophoresis tank is a boat-shaped tank body.