CN116637408A - Defoaming system for coating liquid of vehicle clothing - Google Patents

Abstract

The invention discloses a vehicle coating liquid defoaming system, comprising a stirring tank, a defoaming tank, an ultrasonic defoaming mechanism, a vacuum system and a coating mechanism, the stirring tank includes a tank body and a stirring mechanism, and the tank body The bottom of the bottom is an arc-shaped bottom that protrudes downwards. A discharge port is provided at the lowest point in the middle of the arc-shaped bottom. The discharge port is connected to a first liquid outlet pipe. The upper side of the arc-shaped bottom is provided with a Auxiliary frame. The invention separates the air bubbles from the coating liquid through the ultrasonic defoaming mechanism, and then draws the air bubbles out by the vacuum system to achieve the effect of quickly removing the air bubbles; the arc-shaped bottom is scraped by the scraper bar by rotating the auxiliary frame Clean up to reduce the residue of coating liquid at the bottom.

Description

Car coating liquid defoaming system

technical field

The invention relates to the technical field of coating technology, in particular to the technical field of coating liquid defoaming system.

Background technique

Car cover is a kind of polymer material attached to the surface of the car body to protect and change the color; compared with the whole car spray paint, the construction of car cover is simple, has no effect on the original paint of the vehicle, has small color difference, and is easy to remove Therefore, it has become more and more popular in recent years; the production of automobile body coverings includes multiple processing processes, including coating processes, and the current coating processes are all carried out in supporting coating equipment.

The coating liquid needs to be mixed and defoamed before it can be coated. After the existing stirring device stirs and discharges the material, a large amount of liquid will adhere to the inner wall of the stirring tank, resulting in waste of coating liquid and increased After the existing coating liquid is stirred, it takes a long time to defoam. For some coating liquids that need to be defoamed in a short time, it is usually vacuumized to The air bubbles in the coating liquid should be discharged as soon as possible. This method of vacuuming will cause air bubbles to remain, and the air bubbles will not be eliminated thoroughly.

Contents of the invention

The purpose of the present invention is to solve the problems in the prior art, and propose a defoaming system for coating fluid for car clothing, which can solve the above problems.

In order to achieve the above object, the present invention proposes a defoaming system for car coating liquid, including a stirring tank, a defoaming tank, an ultrasonic defoaming mechanism, a vacuum system and a coating mechanism, and the stirring tank passes through the first liquid outlet pipe It is connected with the feed port of the defoaming tank, the first liquid outlet pipe is provided with a first liquid outlet pump, the defoaming tank is provided with an ultrasonic defoaming mechanism, and the top of the defoaming tank is connected with a vacuum system, so The discharge port of the defoaming tank is connected to the coating mechanism through a second liquid outlet pipe, and the second liquid outlet pipe is provided with a second liquid outlet pump. The ultrasonic defoaming mechanism includes a control system, a driving power supply, an ultrasonic A generator and an ultrasonic emission head, and an observation window is opened on the defoaming tank.

As preferably, the vacuum system includes a suction pipe, a vacuum pump, a negative pressure sensor and a negative pressure gauge. The top of the defoaming tank is provided with a suction pipe, and the suction pipe is connected to a vacuum pump. A pressure sensor, the defoaming tank is provided with a negative pressure gauge, the negative pressure gauge is connected to the negative pressure sensor, and the negative pressure sensor controls the constant pressure in the defoaming tank to be -pa to -pa in real time.

Preferably, the uniform ring of the ultrasonic emitting head is arranged on the outer wall of the defoaming tank.

Preferably, both the first liquid outlet pump and the second liquid outlet pump are gear liquid supply pumps.

Preferably, the stirring tank includes a tank body and a stirring mechanism, the bottom of the tank body is a downwardly convex arc-shaped bottom, and a discharge port is opened at the lowest point in the middle of the arc-shaped bottom, and the discharge port A first liquid outlet pipe is connected, and an auxiliary frame is provided on the upper side of the arc-shaped bottom, and the auxiliary frame includes a symmetrically arranged first scraping rod and a second scraping rod, and the first scraping rod and the second scraping rod The shape matches the arc bottom, the two sides of the first scraping rod and the second scraping rod are connected by connecting rods, the two sides of the auxiliary frame are respectively provided with rotating shafts, and the rotating shafts are installed on the inner wall of the tank A first electric telescopic rod is installed on the side of the rotating shaft close to the auxiliary frame, and a clamping block is provided at the output end of the first electric telescopic rod, and the clamping block clamps the middle position of the connecting rod, one of which The rotating shaft is connected with a rotating motor. The stirring mechanism includes a stirring motor, a stirring shaft and a stirring blade. The stirring shaft is installed at the output end of the stirring motor. Stirring blades are installed on the bottom of the stirring shaft, and a second electric telescopic rod is installed inside the stirring shaft. The output end of the second electric telescopic rod is provided with a square plug, and the second scraping rod is provided with a matching Square slot.

As a preference, several auxiliary blades are arranged staggeredly on the stirring shaft, the auxiliary blades are arranged above the stirring blades, the auxiliary blades are connected with the stirring shaft through a third electric telescopic rod, and the cross section of the auxiliary blades is S-shaped The side of the auxiliary blade close to the stirring shaft is provided with a first groove, the side of the auxiliary blade away from the stirring shaft is provided with a second groove, and the end of the auxiliary blade away from the stirring shaft is provided with a silicone scraper.

Preferably, a through groove is opened on the first groove, and a distribution filter is installed in the through groove.

Preferably, a slot is provided in the middle of the first scraping rod.

Beneficial effects of the present invention: the present invention separates the air bubbles from the coating liquid through the ultrasonic defoaming mechanism, and then extracts the air bubbles by the vacuum system, thereby achieving the effect of rapid de-air bubbles, reducing the waiting time, and the coating after defoaming The liquid can directly enter the coating mechanism for coating; by rotating the auxiliary frame, the stirring mechanism is set horizontally when it is working normally, without affecting the stirring. The shaft is connected, and then the fixing of the clamping block is released, and the auxiliary frame is driven by the stirring shaft to rotate, and the arc-shaped bottom is scraped and cleaned by the scraper rod, so as to reduce the residue of the coating liquid on the bottom and reduce the subsequent cleaning work; when the liquid is discharged, The residual coating liquid on the side wall is scraped off by the auxiliary blade to reduce waste; the distribution filter can break up some solid powder agglomerates during stirring, making the stirring more uniform and improving the stirring efficiency.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural representation of a stirring tank of the present invention;

Fig. 3 is a schematic diagram of a stirring mechanism of the present invention;

Fig. 4 is a working schematic diagram of the auxiliary blade of the present invention;

Fig. 5 is a schematic diagram of the structure of the auxiliary blade of the present invention.

In the figure: 1-stirring tank, 2-defoaming tank, 3-ultrasonic defoaming mechanism, 4-vacuum system, 5-first liquid outlet pipe, 6-second liquid outlet pipe, 7-coating mechanism, 8- Stirring mechanism, 9-auxiliary blade, 11-tank, 12-arc bottom, 13-auxiliary frame, 131-first scraper, 132-second scraper, 133-connecting rod, 14-rotating shaft, 15-th An electric telescopic rod, 16-clamping block, 17-rotating motor, 21-observation window, 31-ultrasonic generator, 32-ultrasonic emission head, 41-exhaust pipe, 42-vacuum pump, 43-negative pressure gauge, 51- The first liquid outlet pump, 61-the second liquid outlet pump, 81-stirring motor, 82-stirring shaft, 83-stirring blade, 84-bracket, 85-second electric telescopic rod, 86-square insert, 91-the first Three electric telescopic rods, 92-first groove, 93-second groove, 94-silicone scraper, 95-distribution filter.

Detailed ways

Referring to Fig. 1 to Fig. 5, the defoaming system of the coating solution for car clothing includes a stirring tank 1, a defoaming tank 2, an ultrasonic defoaming mechanism 3, a vacuum system 4 and a coating mechanism 7, and the stirring tank 1 passes through the first outlet The liquid pipe 5 is connected to the feed port of the defoaming tank 2, the first liquid outlet pipe 5 is provided with a first liquid outlet pump 51, the defoaming tank 2 is provided with an ultrasonic defoaming mechanism 3, and the defoaming tank 2 is provided with an ultrasonic defoaming mechanism 3. The top of 2 is connected with a vacuum system 4, and the discharge port of the defoaming tank 2 is connected with the coating mechanism 7 through the second liquid outlet pipe 6, and the second liquid outlet pipe 6 is provided with a second liquid outlet pump 61 , the ultrasonic defoaming mechanism 3 includes a control system, a driving power supply, an ultrasonic generator 31 and an ultrasonic emitting head 32, an observation window 21 is provided on the defoaming tank 2, and the vacuum system 4 includes an air extraction pipe 41, a vacuum pump 42 , a negative pressure sensor and a negative pressure gauge 43, the top of the defoaming tank 2 is provided with a suction pipe 41, and the suction pipe 41 is connected with a vacuum pump 42, and a negative pressure sensor is provided in the defoaming tank 2, and the defoaming tank 2 is provided with a negative pressure sensor. The bubble tank 2 is provided with a negative pressure gauge 43, the negative pressure gauge 43 is connected with the negative pressure sensor, and the negative pressure sensor controls the constant pressure in the defoaming tank 2 in real time to be -30pa to -50pa, and the first The liquid outlet pump 51 and the second liquid outlet pump 61 are both gear liquid supply pumps, and the liquid suction pump can reach a negative pressure of -0.2Mpa, which can effectively offset the negative pressure of the vacuum pump. The stirring tank 1 includes a tank body 11 and Stirring mechanism 8, the bottom of the tank body 11 is a downwardly protruding arc-shaped bottom 12, and the lowest point in the middle of the arc-shaped bottom 12 is provided with a discharge port, and the discharge port is connected to a first liquid outlet pipe 5. An auxiliary frame 13 is provided on the upper side of the arc-shaped bottom 12. The auxiliary frame 13 includes a symmetrically arranged first scraping bar 131 and a second scraping bar 132. The first scraping bar 131 and the second scraping bar The shape of 132 matches the arc-shaped bottom 12, the two sides of the first scraping rod 131 and the second scraping rod 132 are connected by connecting rods 133, and the two sides of the auxiliary frame 13 are respectively provided with rotating shafts 14, and the rotating shafts 14 is rotatably installed on the inner wall of the tank body 11, the first electric telescopic rod 15 is installed on the side of the rotating shaft 14 close to the auxiliary frame 13, and the output end of the first electric telescopic rod 15 is provided with a clamping block 16, the The clamping block 16 clamps the middle position of the connecting rod 133, and one of the rotating shafts 14 is connected with a rotating motor 17, and the stirring mechanism 8 includes a stirring motor 81, a stirring shaft 82 and a stirring blade 83, and the stirring shaft 82 is installed on the stirring The output end of the motor 81, the stirring motor 81 is fixed on the support 84, the support 84 is connected with a lifting mechanism, the bottom of the stirring shaft 82 is equipped with a stirring blade 83, and the inside of the stirring shaft 82 is equipped with a second The output end of the electric telescopic rod 85, the second electric telescopic rod 85 is provided with a square plug 86, the second scraper rod 132 is provided with a matching square slot, and the stirring shaft 82 is also provided with a number of auxiliary Blade 9, the auxiliary blade 9 is arranged on the top of the stirring blade 83, the auxiliary blade 9 is connected with the stirring shaft 82 through the third electric telescopic rod 91, the cross section of the auxiliary blade 9 is S-shaped, and the auxiliary blade 9 is close to the stirring shaft One side of 82 is provided with first groove 92, and the side of auxiliary blade 9 away from stirring shaft 82 is provided with second groove 93, and the end of described auxiliary blade 9 away from stirring shaft 82 is provided with silicone scraper 94, and described A through groove is provided on the first groove 92, and a distribution filter screen 95 is installed in the through groove. A slot is provided in the middle of the first scraper bar 131, and a positioning hole is provided on the auxiliary frame 13. On the clamping block 16 Corresponding positioning rods are provided.

After the liquid is discharged from the mixing tank, turn the motor to drive the auxiliary frame 13 to stand up, so that the first scraping rod 131 is in contact with the arc-shaped bottom 12, and then the second electric telescopic rod drives the square plug to protrude from the bottom and insert it into the square slot , then the first electric telescopic rod is shortened, the clamping of the clamping block is released, the first scraper 131 is driven by the stirring shaft to rotate, and the arc-shaped bottom is scraped and cleaned, and the cleaned coating liquid gathers toward the middle slot, Finally, it flows out from the outlet at the bottom to prevent the coating liquid from adhering to the inner wall of the mixing tank and forming dirt that is difficult to clean.

Working process of the present invention:

In the working process of the present invention, when the stirring tank is stirring, the auxiliary frame rotates to the horizontal position, and the stirring blade and the auxiliary blade rotate and stir the coating liquid. When stirring, the stirring shaft rotates clockwise along the direction of the first groove, After the stirring is completed, the third electric telescopic rod 91 drives the auxiliary blade 9 to elongate and contact the inner wall of the stirring tank, and the first liquid suction pump pumps the coating liquid into the defoaming tank, and at the same time, the stirring shaft slowly rotates counterclockwise and gradually descends. Scrape the auxiliary coating liquid on the inner wall of the stirring tank into the second groove and flow into the bottom of the stirring tank. After the coating liquid enters the defoaming tank, the emitting head sends the vibration energy generated by the ultrasonic generator into the liquid Ejection, quickly separate the air bubbles from the coating liquid, the vacuum pump cooperates with the air that diffuses the air bubbles to suck away, and the defoamed coating liquid is pumped into the coating machine by the second liquid suction pump for coating work.

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (8)

1. a car clothing coating liquid defoaming system, is characterized in that: comprise stirring tank (1), defoaming tank (2), ultrasonic defoaming mechanism (3), vacuum system (4) and coating mechanism (7 ), the stirring tank (1) is connected with the feed port of the defoaming tank (2) by the first liquid outlet pipe (5), and the first liquid outlet pump (51) is provided on the first liquid outlet pipe (5) , the defoaming tank (2) is provided with an ultrasonic defoaming mechanism (3), the top of the defoaming tank (2) is connected with a vacuum system (4), and the discharge port of the defoaming tank (2) It is connected with the coating mechanism (7) through a second liquid outlet pipe (6), the second liquid outlet pipe (6) is provided with a second liquid outlet pump (61), and the ultrasonic defoaming mechanism (3) includes Control system, driving power supply, ultrasonic generator (31) and ultrasonic emitting head (32), the defoaming tank (2) is provided with an observation window (21). 2. The vehicle coating liquid defoaming system as claimed in claim 1, characterized in that: said vacuum system (4) comprises an air extraction pipe (41), a vacuum pump (42), a negative pressure sensor and a negative pressure gauge (43 ), the top of the defoaming tank (2) is provided with a suction pipe (41), and the suction pipe (41) is connected with a vacuum pump (42), and a negative pressure sensor is provided in the defoaming tank (2), so Described defoamer tank (2) is provided with negative pressure gauge (43), and described negative pressure gauge (43) is connected with described negative pressure sensor, and the constant pressure in negative pressure sensor real-time control defoamer tank (2) is -30pa to -50pa. 3. The vehicle coating fluid defoaming system according to claim 1, characterized in that: the ultrasonic emitting head (32) is uniformly arranged on the outer wall of the defoaming tank (2). 4. The vehicle coating liquid defoaming system according to claim 1, characterized in that: the first liquid outlet pump (51) and the second liquid outlet pump (61) are both gear liquid supply pumps. 5. The vehicle coating liquid defoaming system as claimed in claim 1, characterized in that: the stirring tank (1) comprises a tank body (11) and a stirring mechanism (8), and the tank body (11) The bottom is an arc-shaped bottom (12) protruding downwards, and the lowest point in the middle of the arc-shaped bottom (12) is provided with a discharge port, and the discharge port is connected with a first liquid outlet pipe (5). The upper side of the arc-shaped bottom (12) is provided with an auxiliary frame (13), and the auxiliary frame (13) includes a symmetrically arranged first scraping bar (131) and a second scraping bar (132), and the first scraping bar (131) and the shape of the second scraping bar (132) are matched with the arc-shaped bottom (12), and both sides of the first scraping bar (131) and the second scraping bar (132) are connected by connecting rods (133) , the two sides of the auxiliary frame (13) are respectively provided with rotating shafts (14), and the rotating shafts (14) are rotatably mounted on the inner wall of the tank body (11), and the rotating shafts (14) are close to one side of the auxiliary frame (13). The first electric telescopic rod (15) is installed on the side, and the output end of the first electric telescopic rod (15) is provided with a clamping block (16), and the clamping block (16) clamps the connecting rod (133) In the middle position, one of the rotating shafts (14) is connected with a rotating motor (17), and the stirring mechanism (8) includes a stirring motor (81), a stirring shaft (82) and a stirring blade (83), and the stirring shaft (82 ) is installed on the output end of the stirring motor (81), the stirring motor (81) is fixed on the support (84), the support (84) is connected with a lifting mechanism, and the bottom of the stirring shaft (82) is equipped with a stirring The blade (83), the inside of the stirring shaft (82) is equipped with a second electric telescopic rod (85), the output end of the second electric telescopic rod (85) is provided with a square insert (86), and the second scraper Matching square slots are provided on the rod (132). 6. The defoaming system for car coating liquid as claimed in claim 5, characterized in that: the stirring shaft (82) is also provided with several auxiliary blades (9) in a staggered manner, and the auxiliary blades (9) are arranged on Above the stirring blade (83), the auxiliary blade (9) is connected with the stirring shaft (82) through the third electric telescopic rod (91), the cross section of the auxiliary blade (9) is S-shaped, and the auxiliary blade (9) is close to One side of the stirring shaft (82) is provided with a first groove (92), and the side of the auxiliary blade (9) away from the stirring shaft (82) is provided with a second groove (93), and the auxiliary blade (9) is away from One end of the stirring shaft (82) is provided with a silicone scraper (94). 7. The vehicle coating liquid defoaming system according to claim 6, characterized in that: said first groove (92) is provided with a through groove, and a distribution filter (95) is installed in the through groove. 8. The vehicle coating liquid defoaming system according to claim 5, characterized in that: a slot is provided in the middle of the first scraping rod (131).