A device for painting an automobile trim strip

Abstract

This invention relates to a car trim painting device, comprising a tank body. Multiple sets of paint spraying plates are axially arranged on the inner wall of the tank body, and multiple sets of spray nozzles I are arranged on the paint spraying plates. An arc-shaped plate is vertically arranged along the inner edge of the tank body, located between any two adjacent sets of paint spraying plates. Fan-shaped baffles are provided at both the upper and lower ends of the opening of the arc-shaped plate, with an arc-shaped notch at the central angle of the upper fan-shaped baffle. The arc-shaped plate is driven by a hydraulic cylinder on the outside of the tank body. Multiple sets of hydraulic rods drive the corresponding arc-shaped plate to move to the middle of the tank body to form a cylindrical shell. Air inlet pipes and air outlet pipes are respectively provided on the upper and lower sides of the tank body, and both air inlet and outlet pipes are connected to the corresponding arc-shaped plates via corrugated flexible hoses. This invention can simultaneously paint the product and dry the paint layer using hot airflow. The hot airflow does not contact the spray nozzles I, preventing residual paint in the nozzle I orifices from drying and clumping.

Description

Technical Field

[0001] This invention relates to the field of painting equipment technology, and in particular to a painting equipment for automotive trim strips. Background Technology

[0002] As we all know, the main function of car trim strips is to decorate the car and enhance its overall aesthetics. Generally, after the car trim strips are injection molded, their surface needs to be painted.

[0003] Specifically, a car trim strip painting fixture with patent number CN220678276U uses a start-up actuator. At this time, the guide block moves inside the guide groove, and the two clamping blocks can clamp and position the top of the trim strip body. Then, the lifter is started, which lowers the top plate and places the trim strip body inside the tank. After the motor is started, the lifter rotates slowly, which in turn causes the trim strip body to rotate slowly, allowing the opposite side of the trim strip body to be painted. The painting efficiency is high, thereby improving the production efficiency of the trim strip body. However, this device has the following drawbacks when in use: when the painted decorative strip is removed from the tank or the clamping mechanism before it has dried and set, it often comes into contact with other objects or workers' bodies, which damages the paint layer. Therefore, some people directly introduce hot air into the tank to heat and dry the paint layer on the decorative strip to solve the above problems. However, in this method, the hot air will also come into contact with the nozzle side wall orifice, which will dry the residual paint in the side wall orifice and cause it to clump, eventually leading to blockage of the nozzle side wall orifice and affecting subsequent painting work. Summary of the Invention

[0004] The purpose of this invention is to provide a device for spraying paint on automotive trim strips.

[0005] The technical problem of this invention is mainly solved by the following technical solution: A car trim painting device includes a tank with an open top. Multiple sets of paint spray plates are axially arranged on the inner wall of the tank, and multiple sets of spray nozzles I are arranged on the paint spray plates. An arc-shaped plate is vertically arranged at the inner edge of the tank, located between any two adjacent sets of paint spray plates. Fan-shaped baffles are provided at both the upper and lower ends of the opening of the arc-shaped plate, with an arc-shaped notch at the central corner of the upper fan-shaped baffle. The arc-shaped plate is driven by a hydraulic cylinder on the outside of the tank. Multiple sets of hydraulic rods drive the corresponding arc-shaped plate to move to the middle of the tank to form a cylindrical shell. Air inlet pipes and air outlet pipes are respectively provided on the upper and lower sides of the tank, and both air inlet pipes and air outlet pipes are connected to the corresponding arc-shaped plates via corrugated flexible hoses.

[0006] Preferably, the number of paint spraying plates is four sets, wherein the four sets of paint spraying plates are evenly arranged on the inner side wall of the tank, and the paint spraying plates are located between the upper and lower sets of fan-shaped baffles.

[0007] Preferably, there are four sets of arc-shaped plates, the sidewalls of the fan-shaped baffles are fixedly connected to the inner sidewalls of the arc-shaped plates, the central angle of the fan-shaped baffles is 90 degrees, and the four sets of fan-shaped baffles at the bottom form a circular plate structure.

[0008] Preferably, a recessed portion is provided at the bottom center of the tank, a spray nozzle II is suspended inside the recessed portion, a paint inlet pipe I connected to the spray nozzle II is provided on the outside of the recessed portion, and a drain pipe is also provided at the bottom of the recessed portion.

[0009] Preferably, an arc-shaped paint inlet pipe II is provided on the outside of the tank, and the paint inlet pipe II is connected to the corresponding paint spraying plate through a branch pipe.

[0010] Preferably, an insulation layer and a temperature sensor are provided on the inner wall of the arc-shaped plate.

[0011] The beneficial effects of this invention are as follows: By moving the arc-shaped plate and the fan-shaped baffle, the spray coating layer in the decorative strip is placed in the sealed cavity formed between the arc-shaped plate and the fan-shaped baffle. At this time, hot air is introduced into the bottom of the sealed cavity through the air inlet pipe and the corrugated hose and flows upward. The flowing hot air dries the paint layer on the surface of the decorative strip. Then it is discharged through the corresponding corrugated hose and the air outlet pipe. By blocking the hot air entering the cavity formed by the components through the moved arc-shaped plate and the fan-shaped baffle, the hot air entering the cavity is prevented from diffusing outward and coming into contact with the nozzles I and II. This prevents the hot air drying the decorative strip from coming into contact with the nozzles I and II, thereby drying and clumping the residual paint in the side wall holes of the nozzles I and II and blocking them, thus affecting the subsequent painting work. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the structure between the arc-shaped plate and the fan-shaped baffle in this invention; Figure 4 This is a schematic diagram of the recessed portion in this invention.

[0013] In the diagram: 1. Tank body, 2. Paint spraying plate, 3. Nozzle I, 4. Arc plate, 5. Fan-shaped baffle, 6. Arc-shaped notch, 7. Hydraulic rod, 8. Air inlet pipe, 9. Air outlet pipe, 10. Corrugated hose, 11. Recess, 12. Nozzle II, 13. Paint inlet pipe I, 14. Drain pipe, 15. Paint inlet pipe II, 16. Branch pipe. Detailed Implementation

[0014] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] A car trim painting device includes a tank 1 with an open top. Multiple sets of paint spraying plates 2 are axially arranged on the inner wall of the tank 1, and multiple sets of spray nozzles 13 are arranged on the paint spraying plates 2. An arc-shaped plate 4 is vertically arranged at the inner edge of the tank 1 between any two adjacent sets of paint spraying plates 2. In this embodiment, an insulation layer and a temperature sensor are arranged on the inner side wall of the arc-shaped plate 4. Fan-shaped baffles 5 are provided at both the upper and lower ends of the opening of the arc-shaped plate 4, with an arc-shaped notch 6 at the central corner of the upper fan-shaped baffle 5. The arc-shaped plate 4 is driven by a hydraulic cylinder 7 on the outside of the tank 1. Multiple sets of hydraulic cylinders 7 drive the corresponding arc-shaped plate 4 to move to the middle of the tank 1 to form a cylindrical shell, at which point the paint spraying plates 2 are located outside this shell. The tank body 1 is provided with an air inlet pipe 8 and an air outlet pipe 9 on its upper and lower sides, respectively. Both the air inlet pipe 8 and the air outlet pipe 9 are connected to the corresponding arc-shaped plate 4 through a corrugated flexible hose 10.

[0016] In this embodiment, there are four sets of paint spraying plates 2, which are evenly arranged on the inner wall of the tank body 1. The paint spraying plates 2 are located between the upper and lower sets of fan-shaped baffles 5.

[0017] In this embodiment, there are four sets of arc-shaped plates 4. The sidewall of the fan-shaped baffle 5 is fixedly connected to the inner sidewall of the arc-shaped plate 4. The central angle of the fan-shaped baffle 5 is 90 degrees. The four sets of fan-shaped baffles 5 at the bottom form a circular plate structure.

[0018] like Figure 2 , 4 As shown, a recessed portion 11 is provided downward in the middle of the bottom of the tank body 1. A nozzle II 12 is suspended inside the recessed portion 11. A paint inlet pipe I 13 connected to the nozzle II 12 is provided on the outside of the recessed portion 11. A drain pipe 14 is also provided at the bottom of the recessed portion 11.

[0019] like Figure 1 , 2 An arc-shaped paint inlet pipe II15 is provided on the outside of the tank body 1 shown. The paint inlet pipe II15 is connected to the cavity in the corresponding paint spraying plate 2 through a branch pipe 16.

[0020] During use, the top of the decorative strip is clamped and fixed by the clamping mechanism. The lower half of the decorative strip, the portion to be painted, is inserted into the can 1 via a lifting device. At this time, the positions of the various devices inside the can 1 are as follows: Figure 1 , 2As shown, by rotating the decorative strip, the paint in the storage tank is injected into the paint inlet pipe II15 by a pump, and then introduced into the cavity of multiple sets of paint spraying plates 2 and sprayed out by several nozzles I3, thereby spraying the entire outer wall of the decorative strip. At the same time, the paint is also injected into the nozzle II12 through the paint inlet pipe I13 in the same way, thereby spraying the bottom of the decorative strip. The above technical solution is the prior art, so it will not be described in detail. At this time, since the arc plate 4 is far away from the middle of the tank 1, it will not affect the paint mist sprayed by the nozzle I3 from contacting the decorative strip. In addition, the four sets of fan-shaped baffles 5 below are located outside the recessed part 11, which also prevents them from affecting the paint mist sprayed by the nozzle II12 from contacting the bottom of the decorative strip.

[0021] After the painting is completed, the hydraulic rod 7 drives the arc-shaped plate 4 to move the fan-shaped baffle 5 towards the middle of the tank body 1. At the same time, the arc-shaped plate 4 moves the fan-shaped baffle 5, so that the four sets of arc-shaped plates 4 located in the middle of the tank body 1 form a cylindrical shell, which covers the decorative strip. The circular plate formed by the four sets of fan-shaped baffles 5 at the bottom seals the opening of the recessed part 11, while the four sets of arc-shaped notches 6 in the four sets of fan-shaped baffles at the top form a circular through hole, which fits over the part of the decorative strip that does not need to be painted. In this way, the sprayed layer of the decorative strip is set in the sealed cavity formed by the arc-shaped plate 4 and the fan-shaped baffle 5. At this time, the hot airflow is introduced into the bottom of the above-mentioned sealed cavity through the air inlet pipe 8 and the corrugated hose 10 and flows upward. The flowing hot airflow dries the paint layer on the surface of the decorative strip. Then it is discharged through the corresponding corrugated hose 10 and the air outlet pipe 9. The hot airflow entering the cavity formed by the above components is prevented from spreading outward and coming into contact with the nozzles I3 and II12 by the shielding of the moved arc plate 4 and fan-shaped grid plate 5. This prevents the hot airflow drying the decorative strip from coming into contact with the nozzles I3 and II12, thereby drying and clumping the residual paint in the side wall holes of the nozzles I3 and II12 and blocking them, thus affecting the subsequent painting work.

[0022] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A car trim spraying device, comprising a tank with an open top, characterized in that: Multiple sets of paint spraying plates are axially arranged on the inner wall of the tank, and multiple sets of spray nozzles I are arranged on the paint spraying plates. An arc-shaped plate is also vertically arranged at the inner edge of the tank, located between any two adjacent sets of paint spraying plates. The upper and lower ends of the opening of the arc-shaped plate are provided with fan-shaped baffles, and the central corner of the upper fan-shaped baffle is provided with an arc-shaped notch. The arc-shaped plate is driven by a hydraulic cylinder on the outside of the tank. Multiple sets of hydraulic rods drive the corresponding arc-shaped plate to move to the middle of the tank to form a cylindrical shell. Air inlet pipes and air outlet pipes are respectively provided on the upper and lower sides of the tank. The air inlet pipes and air outlet pipes are connected to the corresponding arc-shaped plates through corrugated hoses.

2. The automotive trim strip painting device according to claim 1, characterized in that: The number of spray paint plates is four sets, which are evenly arranged on the inner side wall of the tank. The spray paint plates are located between the upper and lower sets of fan-shaped baffles.

3. The automotive trim strip painting device according to claim 1, characterized in that: The number of arc-shaped plates is four, and the side wall of the fan-shaped baffle is fixedly connected to the inner side wall of the arc-shaped plate. The central angle of the fan-shaped baffle is 90 degrees, and the four lower fan-shaped baffles form a circular plate structure.

4. The automotive trim strip painting device according to claim 1, characterized in that: A recessed portion is provided at the bottom center of the tank, and a spray nozzle II is suspended inside the recessed portion. A paint inlet pipe I connected to the spray nozzle II is provided on the outside of the recessed portion, and a drain pipe is also provided at the bottom of the recessed portion.

5. The automotive trim strip painting device according to claim 1, characterized in that: An arc-shaped paint inlet pipe II is provided on the outside of the tank, and the paint inlet pipe II is connected to the corresponding paint spraying plate through a branch pipe.

6. The automotive trim strip painting device according to claim 1, characterized in that: An insulation layer and a temperature sensor are provided on the inner wall of the arc-shaped plate.

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