CN108393294B

CN108393294B - Electrophoretic coating pre-cleaning equipment

Info

Publication number: CN108393294B
Application number: CN201810143219.5A
Authority: CN
Inventors: 李洪波
Original assignee: Chongqing Guangfu Science And Technology Co Ltd
Current assignee: Chongqing Ruichang New Energy Vehicle Parts Manufacturing Co ltd
Priority date: 2018-02-11
Filing date: 2018-02-11
Publication date: 2020-03-24
Anticipated expiration: 2038-02-11
Also published as: CN108393294A

Abstract

The invention belongs to the technical field of electrophoretic coating auxiliary equipment, and particularly discloses electrophoretic coating pre-cleaning equipment which comprises a base, a cleaning box body and a high-pressure water tank, wherein the cleaning box body and the high-pressure water tank are arranged on the base; the high-pressure water tank is provided with a water outlet pipe which is communicated with the horizontal part and is parallel to the horizontal part. The invention aims to solve the problems of low speed and low efficiency of the electrophoretic coating precleaning of the disc-shaped workpiece.

Description

Electrophoretic coating pre-cleaning equipment

Technical Field

The invention belongs to the technical field of electrophoretic coating auxiliary equipment, and particularly discloses electrophoretic coating pre-cleaning equipment.

Background

Electrophoretic coating is a coating method in which particles of a pigment, a resin, or the like suspended in an electrophoretic fluid are directionally transferred by an applied electric field and deposited on a surface of a substrate, which is one of electrodes. The electrophoretic coating is a special coating film forming method developed in 30 years, and is a construction process which has the most practical significance for water-based paint. The water-soluble and nontoxic paint has the characteristics of water solubility, no toxicity, easy automation control and the like, and can be rapidly and widely applied to industries such as automobiles, building materials, hardware, household appliances and the like. The electrophoretic coating method has the advantages that dust, grease, phosphating solution and the like on the surface of a workpiece need to be cleaned before electrophoretic coating, otherwise, after the workpiece is subjected to electrophoretic coating, substances such as the phosphating solution and the grease are easily oxidized to cause paint breakage, the oxidation speed of the phosphating solution is high, and if the workpiece is not cleaned, the service life of the paint is greatly reduced. In the prior art, most of workpieces needing electrophoretic coating are not flat in surface, the workpieces are provided with a plurality of bent parts, concave surfaces and convex surfaces, the bent parts and the concave surfaces are difficult to clean, especially a plurality of disc-shaped workpieces are provided with a plurality of through holes, and the inner walls of the through holes are difficult to clean, so that a plurality of or even more than ten work procedures of pre-cleaning the workpieces in a plurality of workshops are needed, and high-pressure water guns are adopted in the workshops to clean the workpieces, so that the cleaning speed is low, the cleaning time is long, and the cleaning efficiency is low.

Disclosure of Invention

The invention aims to provide an electrophoretic coating pre-cleaning device, which aims to solve the problems of low speed and low efficiency when a disc-shaped workpiece is subjected to electrophoretic coating pre-cleaning.

In order to achieve the purpose, the basic scheme of the invention is as follows: the electrophoretic coating pre-cleaning equipment comprises a base, a cleaning box body and a high-pressure water tank, wherein the cleaning box body and the high-pressure water tank are arranged on the base, the cleaning box body is in an inverted U shape, the cleaning box body comprises a first vertical part, a second vertical part and a horizontal part, an upper cover is covered on the horizontal part, moving mechanisms are arranged in the first vertical part and the second vertical part respectively and comprise a piston plate, a first switch, a second switch, a high-pressure air injection device, an air pump and an electromagnetic valve, the piston plate is sealed in the first vertical part and the second vertical part in a sliding mode, the first switch is positioned above the piston plate, the second switch is positioned below the piston plate, the high-pressure air injection device is communicated with the cleaning box body, the communicated part is positioned below the piston plate, the high-pressure air injection device is electrically connected with the second switch, the air pump is connected with the high-pressure air injection device, and the, the electromagnetic valve is positioned below the second switch and is respectively and electrically connected with the first switch and the second switch; and the high-pressure water tank is provided with a water outlet pipe, and the water outlet pipe is communicated with the horizontal part and is parallel to the horizontal part.

The working principle of the basic scheme is as follows: the workpiece to be cleaned is placed on the horizontal part of the cleaning box body, then the high-pressure water tank is opened, water in the high-pressure water tank is flushed into the horizontal part, and the workpiece can be cleaned once, but the water amount sprayed out by the high-pressure water tank is only one third of the volume of the cleaning box body. Since the outlet pipe is parallel to the horizontal portion, the sprayed water flows into the first vertical portion or the second vertical portion and pushes the piston plate downward, at which time the water is stored in the first vertical portion or the second vertical portion. When the piston plate touches the second switch, the high-pressure air injection device is opened and high-pressure air in the high-pressure air injection device is flushed into the first vertical part or the second vertical part, the high-pressure air can push the piston plate to move upwards, the piston plate can push water to the horizontal part, and the water can be flushed onto the workpiece to flush the workpiece completely. When the piston plate touches the first switch, the air pump is started, the air pump fills air into the high-pressure air injection device, and the electromagnetic valve is also started to discharge the high-pressure air. And meanwhile, water flows into the other vertical part and pushes the piston plate of the other vertical part downwards, and the steps are repeated until the workpiece is washed back and forth.

The beneficial effect of this basic scheme lies in: 1. in the scheme, the workpiece can be washed back and forth by water in the washing box body, the workpiece can be soaked by the water when the workpiece is washed, the surface exposed out of the workpiece can be cleaned, and the through hole in the workpiece can be cleaned. 2. This scheme adopts high-pressure gas to promote water and make a round trip to erode the work piece, and high-pressure gas's pressure is big, can make water flow fast, improves the effect of washing. 3. When the piston plate touches the first switch, the air pump is started and refills the high-pressure air injection device, and the electromagnetic valve is also opened at the moment to discharge the high-pressure air. When the piston plate touches the second switch, the high-pressure air injection device can inject air to push the piston plate to move upwards so as to push water to flow upwards. The scheme realizes automatic control of air injection, inflation and deflation, and does not need design procedures and use of a control unit.

The first preferred scheme is as follows: preferably, the device also comprises a clamping mechanism, the clamping mechanism comprises an upper clamp arranged at the bottom of the upper cover and a lower clamp arranged at the horizontal part, the upper clamp and the lower clamp are both arc-shaped, arc-shaped grooves are concentrically arranged on the upper clamp and the lower clamp, the grooves are all connected with rolling balls in a rolling way, the lower clamp is also internally concentrically provided with an arc-shaped hollow cavity, a part of the rolling balls extends into the hollow cavity, two ends of the hollow cavity are both rotatably connected with rotating rods, the two rotating rods are wrapped and wound with tensioned friction belts, the friction belts are abutted against the balls, the horizontal part is provided with a strip-shaped through groove which is communicated with a groove on the lower clamp, the clamping mechanism also comprises a motor and a friction wheel, the motor is arranged on the base, the friction wheel is arranged on the output end of the motor, and the friction wheel is abutted to the friction belt. The clamping mechanism in the scheme is used for clamping the disc-shaped workpiece. When the disc-shaped workpiece clamping device is used, the upper cover is opened, a disc-shaped workpiece is placed into the lower clamp, the workpiece is in a vertical state at the moment, then the upper cover is closed, and the upper clamp at the bottom of the upper cover can clamp the upper part of the workpiece. When the water in the cleaning box body washes away the workpiece back and forth, the workpiece is in a vertical state, so that the workpiece can be cleaned more cleanly by the water. And starting the motor, driving the friction wheel to rotate by the motor, contacting the friction wheel with the friction belt, driving the friction belt to rotate by the friction wheel, driving the balls to rotate by the friction belt, and driving the workpiece to rotate by the balls. Because some parts on the work piece are sheltered from by upper fixture and lower fixture, although water still can flow into in the anchor clamps, its cleaning performance is not good, and the work piece is in this scheme constantly rotating, so every part of work piece can both obtain the washing and wash.

The preferred scheme II is as follows: preferably, as a first preferred scheme, the motor is provided with a reduction gearbox, and the friction wheel is arranged at the output end of the reduction gearbox. This scheme of adoption can reduce the rotational speed of friction pulley for its moment of torsion increase prevents to take place the phenomenon of skidding between friction pulley and the friction band.

The preferable scheme is three: preferably, the surface of the ball is provided with a sealing layer. This scheme of adoption can prevent that water from flowing from the junction of ball and recess, causes to wash the box and leaks.

The preferable scheme is four: preferably, the bottom of the piston plate is provided with a spring, and one end of the spring, which is far away from the piston plate, is connected with the base. This scheme of adoption, the spring can play the supporting role to the piston board, when preventing that the solenoid valve from letting out high-pressure gas, the piston board moves the mistake down and touches the second switch. Meanwhile, when the piston plate is pushed upwards by high-pressure gas, the elastic restoring force of the spring can also push the piston plate upwards, so that the boosting effect is achieved.

The preferable scheme is five: preferably, the upper parts of the first vertical part and the second vertical part are provided with limit blocks. This scheme of adoption can prevent that high-pressure gas from making the piston plate rush out first vertical portion or the vertical portion of second when promoting the piston plate.

Drawings

FIG. 1 is a schematic structural diagram of an electrophoretic coating pre-cleaning apparatus according to an embodiment;

FIG. 2 is a schematic structural view of an upper clamp and a lower clamp;

fig. 3 is a sectional view of the lower clamp.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the cleaning device comprises a base 1, a cleaning box body 2, a high-pressure water tank 3, a first vertical part 4, a second vertical part 5, a horizontal part 6, a first switch 7, a second switch 8, a piston plate 9, a high-pressure air injection device 10, an electromagnetic valve 11, an upper clamp 12, a lower clamp 13, a groove 14, a ball 15, a hollow cavity 16, a friction belt 17, a rotating rod 18, a friction wheel 19, a motor 20 and a limiting block 21.

As shown in fig. 1 and fig. 2, the electrophoretic coating pre-cleaning apparatus of the present embodiment includes a cleaning tank 2, a high pressure water tank 3, an upper clamp 12, a lower clamp 13, and a motor 20. The cleaning box body 2 is in an inverted U shape, the left side of the cleaning box body 2 is a first vertical part 4, the right side of the cleaning box body is a second vertical part 5, and the middle of the cleaning box body is a horizontal part 6. The high-pressure water tank 3 is arranged on the base 1, a water outlet pipe is arranged on the high-pressure water tank 3, the water outlet pipe is communicated with the horizontal part 6 and is parallel to the horizontal part 6, and the water outlet pipe is aligned to the first vertical part 4. Be equipped with moving mechanism on first vertical portion 4 and the vertical portion 5 of second, moving mechanism includes high-pressure air injection device 10, air pump, spring to and all set up in first vertical portion 4 and the vertical portion 5 of second and by stopper 21, first switch 7, piston plate 9, second switch 8 and the solenoid valve 11 that sets gradually from top to bottom. The upper end of the spring is disposed at the bottom of the piston plate 9 and the lower end of the spring is disposed at the bottom of the first and second upright portions 4 and 5. The high-pressure air injection device 10 is arranged on the base 1, the high-pressure air injection device 10 is communicated with the first vertical portion 4 and the second vertical portion 5, and the air pump is communicated with the high-pressure air injection device 10. The first switch 7 is electrically connected with the electromagnetic valve 11 and the air pump, and the second switch 8 is electrically connected with the electromagnetic valve 11 and the high-pressure air injection device 10. The upper cover is detachably arranged above the horizontal part 6, the upper clamp 12 is arranged at the bottom of the upper cover, the lower clamp 13 is further arranged in the horizontal part 6, and the lower clamp 13 is located on the upper clamp 12 and is placed downwards and aligned. As shown in fig. 3, the upper clamp 12 and the lower clamp 13 are both arc-shaped and symmetrically arranged, arc-shaped grooves 14 are concentrically arranged on the upper clamps, balls 15 are connected in the grooves 14 in a rolling manner, and sealing layers are arranged on the balls 15. Still be equipped with curved cavity 16 in the lower fixture 13 with one heart, in some extensions of ball 15 cavity 16, cavity 16's both ends all rotated and are connected with dwang 18, and the parcel winding has the friction area 17 of tensioning on two dwang 18, and friction area 17 offsets with ball 15, is equipped with the logical groove of bar on the horizontal part 6, lead to groove and the recess 14 intercommunication on the lower fixture 13. The motor 20 is arranged on the base 1, the output end of the motor 20 is provided with a reduction gearbox, the output end of the reduction gearbox is provided with a friction wheel 19, and the friction wheel 19 is abutted to the friction belt 17 through the through groove.

In specific implementation, the upper cover is opened, the workpiece is placed into the lower clamp 13, then the upper cover is closed, and the upper clamp 12 is also closed to the upper part of the workpiece. The high-pressure water tank 3 is opened, the water of the high-pressure water tank 3 is sprayed out of the water outlet pipe to the horizontal portion 6, the volume of the sprayed water is one third of the volume of the cleaning box body 2, the water can wash a workpiece and flow into the first vertical portion 4, the water can push the piston plate 9 downwards until the piston plate 9 touches the second switch 8, the second switch 8 controls the high-pressure air injection device 10 to be started, the electromagnetic valve 11 is also controlled to be closed, the high-pressure air injection device 10 sprays high-pressure gas into the first vertical portion 4, the high-pressure gas pushes the piston plate 9 upwards at the moment, the piston plate 9 pushes the water on the piston plate to the horizontal portion 6 again, the water can wash the workpiece once at the moment, and the water can flow into the second vertical portion 5. The piston plate 9 moves upwards and then touches the first switch 7, the first switch 7 controls the air pump and the electromagnetic valve 11 to be opened, the air pump fills air into the high-pressure air injection device 10, the electromagnetic valve 11 is opened, and high-pressure air in the first vertical part 4 is discharged. After the water has flowed into the second upright 5, the second upright 5 repeats the steps of the first upright 4. The motor 20 is started, the motor 20 drives the output end of the reduction gearbox to rotate, the output end of the reduction gearbox drives the friction wheel 19 to rotate, the friction wheel 19 drives the friction belt 17 to rotate, the friction belt 17 drives the balls 15 to rotate, and the balls 15 drive the workpiece to rotate.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. Electrophoresis application is cleaning equipment in advance, including the base, its characterized in that: the cleaning box body is of an inverted U shape and comprises a first vertical part, a second vertical part and a horizontal part, an upper cover is covered on the horizontal part, moving mechanisms are arranged in the first vertical part and the second vertical part respectively and comprise a piston plate, a first switch, a second switch, a high-pressure air injection device, an air pump and an electromagnetic valve, the piston plate is sealed in the first vertical part and the second vertical part in a sliding mode, the first switch is located above the piston plate, the second switch is located below the piston plate, the high-pressure air injection device is communicated with the cleaning box body and is located below the piston plate, the high-pressure air injection device is electrically connected with the second switch, the air pump is connected with the high-pressure air injection device and is electrically connected with the first switch, and the electromagnetic valve is located below the second switch, the electromagnetic valve is electrically connected with the first switch and the second switch respectively; and the high-pressure water tank is provided with a water outlet pipe, and the water outlet pipe is communicated with the horizontal part and is parallel to the horizontal part.

2. The electrocoating precleaning apparatus of claim 1, wherein: still include fixture, fixture is including setting up the last anchor clamps in upper cover bottom and setting up the lower anchor clamps at the horizontal part, it all is arc and goes up all concentric curved recess that is equipped with on anchor clamps and the lower anchor clamps with lower anchor clamps to go up anchor clamps, equal roll connection has the ball in the recess, still be equipped with curved cavity with one heart in the anchor clamps down, in the partly cavity that extends to of ball, the both ends of cavity all rotate and are connected with the dwang, and the parcel winding has the friction area of tensioning on two dwangs, and friction area offsets with the ball, be equipped with the logical groove of bar on the horizontal part, lead to the groove intercommunication on groove and the lower anchor clamps, fixture still includes motor and friction pulley, the motor sets up on the base, and the friction pulley sets up on the output of motor, and the friction pulley passes logical groove and offsets with the friction area.

3. The electrocoating precleaning apparatus of claim 2, wherein: the motor is provided with a reduction gearbox, and the friction wheel is arranged at the output end of the reduction gearbox.

4. The electrocoating precleaning apparatus of claim 2, wherein: and a sealing layer is arranged on the surface of the ball.

5. The electrocoating precleaning apparatus of claim 1, wherein: the bottom of the piston plate is provided with a spring, and one end of the spring, which is far away from the piston plate, is connected with the base.

6. The electrocoating precleaning apparatus of claim 1, wherein: the upper parts of the first vertical part and the second vertical part are both provided with limiting blocks.