A supercritical foamed elastomeric coating spray device

Abstract

The utility model relates to related field of spraying device especially, a kind of supercritical foaming elastomer coating spraying device, including belt conveyor, rack, lifting cylinder, lifting frame, rotary frame, hollow tube, spray head, protection frame, collection tank, feed hose, negative pressure pipe and cleaning pipe etc..The utility model is provided with multiple hollow tubes, it is convenient to install different spray heads on different hollow tubes, it is convenient to adjust downward spray head according to the kind of supercritical foaming elastomer, so that different spray heads spray different coating on supercritical foaming elastomer, improve the adaptability of spraying device, and residual coating in spray head is sucked back at the end of spraying by negative pressure pipe, reduce the influence of the quality of supercritical foaming elastomer by residual coating drop, and by cleaning pipe, cleaning fluid can be input into spray head, it is convenient to clean inside spray head, its cleaning process is more labor-saving, it is favorable to improve cleaning efficiency, improve the practicability of spraying device.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment, and in particular to a supercritical foamed elastomer coating spraying device. Background Technology

[0002] Supercritical foam elastomers refer to materials that, based on elastomer materials, undergo a specific foaming process to form a large number of cellular structures within them. During the production of supercritical foam elastomers, coating spraying equipment is sometimes used to facilitate subsequent processing and meet specific performance or aesthetic requirements. For example, to improve the wear resistance, chemical resistance, water resistance, or aesthetics of supercritical foam elastomers, a coating layer may need to be sprayed onto their surface.

[0003] Existing spraying equipment typically applies coatings to supercritical foam elastomers via nozzles. However, different coatings require different coatings, and different coatings may require different nozzles. For example, porous supercritical foam elastomers may require nozzles with coarser atomization particles and moderate spray pressure, while dense supercritical foam elastomers are better suited to nozzles with finer atomization. Spraying equipment with fixed nozzles is difficult to adapt to different supercritical foam elastomers, reducing the adaptability of the equipment. Furthermore, after use, coatings tend to remain in the nozzles and drip, potentially affecting the quality of subsequent supercritical foam elastomers. Existing spraying equipment also requires cleaning after prolonged use to maintain stability, which is currently done manually, a time-consuming and labor-intensive process that reduces the practicality of the equipment. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a supercritical foamed elastomer coating spraying device to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a supercritical foamed elastomer coating spraying device, comprising a belt conveyor and a frame, wherein the frame is mounted on the belt conveyor and a spraying assembly is provided inside the frame;

[0006] The spraying assembly includes a lifting cylinder, a lifting frame, a rotating frame, a hollow tube, a spray nozzle, a protective frame, a collection tank, a feed hose, a negative pressure tube, a cleaning tube, and a motor; the lifting cylinder is installed on the top surface of the frame; the lifting frame is movably installed inside the frame and connected to the piston rod of the lifting cylinder; the motor is detachably installed on the side surface of the lifting frame; the rotating frame is movably installed inside the lifting frame and coaxially connected to the motor output shaft;

[0007] A protective frame is installed inside the frame, and a collection tank for collecting residual liquid is opened at the bottom inside the protective frame. When the nozzle is rotated to the downward tilting position, it faces the inside of the collection tank.

[0008] The rotating frame is equipped with two or more hollow tubes, each of which is equipped with several nozzles and is connected to a feed hose for inputting paint.

[0009] The feed hose is connected to a negative pressure tube and a cleaning tube. The negative pressure tube is used to provide negative pressure to the hollow tube and the inside of the nozzle, and the cleaning tube is used to introduce cleaning fluid into the hollow tube and the inside of the nozzle.

[0010] Preferably, the front end face of the frame is embedded with an observation window, which is made of a transparent material.

[0011] Preferably, the observation window is made of transparent polycarbonate material.

[0012] Preferably, the bottom inner side of the collection trough has an inclined structure.

[0013] Preferably, a detection sensor is installed at the bottom of the motor, and the detection sensor is a laser rangefinder sensor.

[0014] Preferably, the lifting frame has a U-shaped structure, and there is a gap between the top inner side of the lifting frame and the nozzle.

[0015] Preferably, both the negative pressure tube and the cleaning tube are made of silicone.

[0016] The beneficial effects of this utility model are:

[0017] This invention incorporates multiple hollow tubes, allowing for the installation of different nozzles on each tube. This enables adjustment of the downward-facing nozzles based on the type of supercritical foam elastomer, allowing different nozzles to spray different coatings onto the supercritical foam elastomer. This improves the adaptability of the spraying device. Furthermore, a negative pressure pipe draws back residual coating from the nozzles at the end of spraying, reducing dripping and minimizing its impact on the quality of the supercritical foam elastomer. A cleaning pipe allows cleaning fluid to be introduced into the nozzles, facilitating internal cleaning and simplifying the cleaning process, thus enhancing cleaning efficiency and the practicality of the spraying device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the spraying device structure of this utility model;

[0019] Figure 2 This is a front view cross-sectional structural diagram of the spraying component of this utility model;

[0020] Figure 3 This is a schematic diagram of the nozzle cleaning state structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the lifting frame connection structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the protective frame structure of this utility model.

[0023] The components include: belt conveyor-1, frame-2, lifting cylinder-3, lifting frame-4, rotating frame-5, hollow tube-6, nozzle-7, protective frame-8, collection tank-9, feed hose-10, negative pressure pipe-11, cleaning pipe-12, motor-13, detection sensor-14, and observation window-15. Detailed Implementation

[0024] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0025] like Figures 1 to 5 As shown, this utility model provides a supercritical foamed elastomer coating spraying device, including a belt conveyor 1 and a frame 2. The belt conveyor 1 is used to transport supercritical foamed elastomer, and the frame 2 is set on the belt conveyor 1. The frame 2 is equipped with a spraying component.

[0026] The spraying assembly includes a lifting cylinder 3, a lifting frame 4, a rotating frame 5, a hollow tube 6, a spray nozzle 7, a protective frame 8, a collection tank 9, a feed hose 10, a negative pressure tube 11, a cleaning tube 12, and a motor 13; the lifting cylinder 3 is locked and fixed to the top surface of the frame 2; the lifting frame 4 is movably installed inside the frame 2 and connected to the piston rod of the lifting cylinder 3; the motor 13 is locked and fixed to the front surface of the lifting frame 4; the rotating frame 5 is rotatably installed inside the lifting frame 4, and the output shaft of the motor 13 is coaxially connected to the rotating frame 5 through a coupling;

[0027] A protective frame 8 is installed on the top inner side of the frame 2. A collection tank 9 for collecting residual liquid is opened at the bottom inner side of the protective frame 8. The bottom inner side of the collection tank 9 is an inclined structure that extends downward from front to back, which facilitates the residual liquid to flow backward and be discharged along the collection tank 9. When the nozzle 7 is rotated to the downward inclined state, it faces the inside of the collection tank 9.

[0028] The rotating frame 5 is equipped with three hollow tubes 6 arranged in an equally spaced ring. Each hollow tube 6 is equipped with several nozzles 7. The function of the nozzles 7 on different hollow tubes 6 can be adjusted according to actual needs. The hollow tube 6 is connected to a feed hose 10 for inputting paint.

[0029] The feed hose 10 is connected to a negative pressure hose 11 and a cleaning hose 12. The negative pressure hose 11 is used to provide negative pressure to the hollow tube 6 and the nozzle 7, and the cleaning hose 12 is used to input cleaning fluid into the hollow tube 6 and the nozzle 7.

[0030] Motor 13 is a servo motor;

[0031] Lifting cylinder 3 is a pneumatic cylinder;

[0032] In this embodiment, an observation window 15 is embedded in the front end face of the frame 2. The observation window 15 is made of transparent material, specifically transparent polycarbonate material, which facilitates observation of the working status inside the frame 2 through the observation window 15.

[0033] In this embodiment, a detection sensor 14 is installed at the bottom of the motor 13. The detection sensor 14 is a laser rangefinder sensor, which facilitates the detection of the distance between the nozzle 7 and the supercritical foam elastomer, and makes it easy to adjust the position of the nozzle 7 and the distance between the supercritical foam elastomer to be appropriate.

[0034] Among them, the lifting frame 4 has a U-shaped structure, and there is a gap between the top of the inner side of the lifting frame 4 and the nozzle 7, so that the rotating frame 5 can drive the nozzle 7 to rotate inside the lifting frame 4.

[0035] In this embodiment, both the negative pressure tube 11 and the cleaning tube 12 are made of silicone.

[0036] Specifically, the feed hose 10 is connected to an external paint output device, the negative pressure pipe 11 is connected to an external negative pressure device, and the cleaning pipe 12 is connected to an external cleaning liquid output device. The lifting cylinder 3 is controlled to drive the lifting frame 4, the rotating frame 5, and the nozzle 7 to move downwards. The distance between the nozzle 7 and the belt conveyor 1 is detected by the inspection sensor 14. Since the thickness of the supercritical foam elastomer is fixed and the size of the nozzle 7 is fixed, the distance between the nozzle 7 and the supercritical foam elastomer can be indirectly determined. When the distance between the nozzle 7 and the supercritical foam elastomer is appropriate, the lifting cylinder 3 stops driving the lifting frame 4 to move. Then, the vertically downward nozzle 7 is adjusted according to the supercritical foam elastomer. The rotating frame 5 is driven to rotate by the motor 13, and the rotating frame 5 drives the hollow tube 6 and the nozzle 7 to rotate, thereby adjusting the downward-facing nozzle 7. Since the motor 13 is a servo motor, the precise position control of the rotating frame 5 can be achieved through closed-loop feedback control. Furthermore, since a transparent observation window 15 is provided, the position of the nozzle 7 can also be observed and adjusted through the observation window 15.

[0037] The supercritical foamed elastomer is placed on the belt conveyor 1. The belt conveyor 1 is controlled to move the supercritical foamed elastomer into the frame 2. The paint is transported to the hollow tube 6 through the corresponding external paint output device and sprayed onto the supercritical foamed elastomer by the nozzle 7. During the movement of the belt conveyor 1, the nozzle 7 can spray the paint onto the supercritical foamed elastomer more comprehensively.

[0038] After the supercritical foamed elastomer is sprayed, the external negative pressure equipment is activated. Negative pressure is supplied to the hollow tube 6 and the inside of the nozzle 7 through the negative pressure pipe 11. Residual paint inside the nozzle 7 is drawn back, preventing dripping. The position of the nozzle 7 can be adjusted to an inclined state via the motor 13. Figure 3 The nozzle 7 is located in the lower right corner of the nozzle. Then, the corresponding external cleaning fluid output device is controlled to input cleaning fluid into the cleaning pipe 12. The cleaning fluid flows into the nozzle 7 through the hollow pipe 6 and is discharged through the nozzle 7. This process cleans the inside of the nozzle 7. The discharged cleaning fluid and residual paint flow into the collection tank 9 for storage. The collection tank 9 can also be connected to an external discharge pipe to discharge the collected cleaning fluid and paint to the outside.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A supercritical foamed elastomer coating spraying device, comprising a belt conveyor, a frame mounted on the belt conveyor, and a spraying assembly disposed within the frame; Its features are, The spraying assembly includes a lifting cylinder mounted on the top surface of the frame, a lifting frame movably mounted inside the frame and connected to the piston rod of the lifting cylinder, a motor detachably mounted on the side surface of the lifting frame, and a rotating frame movably mounted inside the lifting frame and coaxially connected to the output shaft of the motor. A protective frame is installed inside the frame, and a collection tank for collecting residual liquid is opened at the bottom inside the protective frame. When the nozzle is rotated to the downward tilting position, it faces the inside of the collection tank. The rotating frame is equipped with two or more hollow tubes, each of which is equipped with several nozzles and is connected to a feed hose for inputting paint. The feed hose is connected to a negative pressure tube and a cleaning tube. The negative pressure tube is used to provide negative pressure to the hollow tube and the inside of the nozzle, and the cleaning tube is used to introduce cleaning fluid into the hollow tube and the inside of the nozzle.

2. The supercritical foamed elastomer coating spraying device according to claim 1, characterized in that: The front end face of the frame is embedded with an observation window, which is made of transparent material.

3. The supercritical foamed elastomer coating spraying device according to claim 2, characterized in that: The viewing window is made of transparent polycarbonate.

4. The supercritical foamed elastomer coating spraying device according to claim 1, characterized in that: The bottom inner side of the collection tank has an inclined structure.

5. The supercritical foamed elastomer coating spraying device according to claim 1, characterized in that: A detection sensor, which is a laser rangefinder, is installed at the bottom of the motor.

6. The supercritical foamed elastomer coating spraying device according to claim 1, characterized in that: The lifting frame has a U-shaped structure, and there is a gap between the top inner side of the lifting frame and the nozzle.

7. The supercritical foamed elastomer coating spraying device according to claim 1, characterized in that: Both the negative pressure tube and the cleaning tube are made of silicone.

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