A spraying device for corrosion-proof processing of an electric heating tube

Abstract

The utility model belongs to electric heating pipe production equipment technical field especially relates to a kind of spraying device for electric heating pipe anticorrosion processing, including base, the base is fixedly installed with protective cover, the side surface of the protective cover is fixedly installed with control cabinet, the top of the protective cover is fixedly installed with spraying material bucket, spraying mechanism and clamping mechanism are equipped in the spraying device for electric heating pipe anticorrosion processing.The spraying device for electric heating pipe anticorrosion processing, spraying mechanism realizes all-around spraying by annular spraying seat and six groups of spray head, filter device reduces spray head blockage, heating and heat preservation design enhances coating adhesion, electric push rod drive adapts different length electric heating pipe;Clamping mechanism realizes internal clamping with six groups of clamping jaw, avoids spraying omission, spring buffer protects workpiece, material collecting groove and recovery bucket cooperate to reduce material waste, overall improves operation convenience, adaptability and processing quality.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating tube production equipment, specifically a spraying device for anti-corrosion processing of electric heating tubes. Background Technology

[0002] In the anti-corrosion processing of electric heating tubes, the performance of the spraying device directly affects the quality of the heating tubes. Currently, the anti-corrosion spraying devices for electric heating tubes on the market have many shortcomings. Some devices have fixed nozzle positions, which cannot be flexibly adjusted according to the size and shape of the heating tube, resulting in inconsistent coating thickness on the surface of the heating tube, with some areas being too thick or too thin, affecting the anti-corrosion effect. Furthermore, dead corners are easily created during spraying, leading to uneven coating. Impurities in the paint can easily clog the nozzle, increasing maintenance costs. Unstable paint temperature and poor fluidity affect adhesion, and the device's adaptability is limited, making it difficult to meet the spraying needs of heating tubes of different lengths. At the same time, the clamping mechanism mostly uses external clamping, which can easily obstruct the tube wall, causing spraying omissions. It also has poor adaptability to heating tubes of different inner diameters, easily damaging the workpiece surface during clamping. Excess paint is wasted significantly during the spraying process, and the overall efficiency and quality need improvement. Therefore, there is an urgent need to improve the spraying device for anti-corrosion processing of electric heating tubes to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a spraying device for anti-corrosion processing of electric heating tubes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for anti-corrosion processing of electric heating tubes, comprising a base, a support leg fixedly installed at the bottom of the base, a protective cover fixedly installed on the base, a control cabinet fixedly installed on the side of the protective cover, a spraying paint bucket fixedly installed on the top of the protective cover, a door movably installed on the side of the protective cover via a hinge, an observation window provided on the door, and a recycling bin movably installed at the bottom of the base via a thread; the spraying device for anti-corrosion processing of electric heating tubes includes a spraying mechanism and a clamping mechanism, the spraying mechanism including a protective cover, a spraying pump fixedly installed on the protective cover, and the suction port of the spraying pump connected to the spraying paint bucket via a rubber tube.

[0005] Preferably, the side of the spray pump is provided with a filter device, the filter device is provided with a filter screen, and the outlet of the spray pump is connected to the filter device through a rubber tube.

[0006] Preferably, the outlet of the filter device is fixedly connected to the outlet pipe, the end of the outlet pipe is fixedly connected to the annular spraying seat, and the annular spraying seat is fixedly installed in the middle position of the spraying frame.

[0007] Preferably, the discharge pipe has a multi-layer design, with the outer layer made of rock wool, the middle layer being an electric heating coil, and the innermost layer being a spraying conveyor pipe. Six sets of spray nozzles are evenly arranged below the annular spraying seat.

[0008] Preferably, the spraying frame has sliders on both sides, and the protective cover has grooves on both sides that cooperate with the sliders. The sliders are fixedly installed on the top of the piston rod, and the piston rod is movably installed in the electric actuator seat, together with the motor and other components therein, to form an electric actuator.

[0009] Preferably, the clamping mechanism includes a base, a material collection trough is provided in the middle of the base, a filter screen is provided at the bottom of the material collection trough, a clamping seat is provided in the middle of the material collection trough, the clamping seat is frustum-shaped, six sets of guide grooves are provided on the side of the clamping seat, a clamping block is movably installed in the guide groove, and a gripper is fixedly installed on the clamping block.

[0010] Preferably, a connecting rod is fixedly installed on the inner side of the clamping block, a cavity is provided in the clamping seat, an installation plate is movably installed in the cavity, an installation groove is provided in the installation plate to cooperate with the radial movement of the connecting rod, a limit block is fixedly installed on the top of the connecting rod, a spring is provided on the connecting rod, the installation plate is fixedly installed on the top of the cylinder, the cylinder is fixedly installed on the bottom of the base, and an isolation cover is fixedly installed on the outer side of the cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This anti-corrosion coating device for electric heating tubes, through its design, employs a ring-shaped spraying base with six evenly distributed nozzles to achieve comprehensive coverage of the heating tube's outer circumference, avoiding dead angles and significantly improving coating uniformity. A filter device with a screen effectively removes impurities from the coating, reducing the probability of nozzle clogging and lowering equipment maintenance frequency. The discharge pipe features a multi-layer design; the interlayer's electric heating coil heats the coating, and the outer layer of rock wool insulation prevents poor coating flow due to low temperatures, improving coating adhesion to the heating tube surface. Simultaneously, the spraying frame, through the cooperation of a slider and a protective cover groove, can move up and down under the drive of an electric push rod to spray the heating tube surface, comprehensively improving the efficiency and quality of anti-corrosion coating.

[0012] 2. This spraying device for anti-corrosion processing of electric heating tubes, through the design of its clamping mechanism, employs a frustum-shaped clamping base in conjunction with six sets of clamping blocks with claws. A cylinder drives the mounting plate to rise and fall, and the mounting groove on the mounting plate drives the connecting rod and clamping blocks to move radially along the guide groove, achieving stable clamping of electric heating tubes of different inner diameters. This solves the problem of spraying omissions caused by the traditional external clamping method obstructing the tube wall, ensuring that the outer circumference of the electric heating tube is fully exposed to the spraying area. The spring design on the inner side of the clamping blocks provides buffering force, preventing excessive clamping force from damaging the surface of the electric heating tube, while also enhancing clamping stability. The combination of the collection tank and the bottom filter screen efficiently collects excess paint dripping during the spraying process. After filtration, it can be recycled and reused through a recycling bin, reducing material waste and improving the overall convenience and adaptability of the clamping operation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the installation structure of the spraying mechanism of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism installation structure of this utility model; Figure 5 This is a partial cross-sectional view of the clamping mechanism of this utility model.

[0014] In the diagram: 1. Base, 2. Support leg, 3. Protective cover, 4. Control cabinet, 5. Chamber door, 6. Observation window, 7. Paint bucket, 8. Recycling bucket, 201. Spray pump, 202. Filter device, 203. Discharge pipe, 204. Spray frame, 205. Circular spray base, 206. Electric heating coil, 207. Nozzle, 208. Slider, 209. Slide groove, 210. Piston rod, 211. Electric push rod base, 301. Collection trough, 302. Filter screen, 303. Clamping base, 304. Guide groove, 305. Clamping block, 306. Claw, 307. Cavity, 308. Mounting plate, 309. Cylinder, 310. Isolation cover, 311. Connecting rod, 312. Limiting block, 313. Mounting groove, 314. Spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] Based on existing technology, some devices have fixed nozzle positions, which cannot be flexibly adjusted according to the size and shape of the heating element. This results in inconsistent coating thickness on the heating element surface, with some areas being too thick or too thin, affecting the anti-corrosion effect. Furthermore, dead zones are easily created during spraying, leading to uneven coating. Impurities in the coating can easily clog the nozzles, increasing maintenance costs. Unstable coating temperature and poor fluidity affect adhesion, and the device has limited adaptability, making it difficult to meet the spraying needs of heating elements of different lengths. Therefore, this device is equipped with a spraying mechanism. Please refer to [link / reference]. Figures 1-4 This utility model provides a technical solution: a spraying device for anti-corrosion processing of electric heating tubes, including a base 1, a support leg 2 fixedly installed at the bottom of the base 1, a protective cover 3 fixedly installed on the base 1, a control cabinet 4 fixedly installed on the side of the protective cover 3, a spraying paint tank 7 fixedly installed on the top of the protective cover 3, a door 5 movably installed on the side of the protective cover 3 via a hinge, an observation window 6 provided on the door 5, and a recycling bin 8 movably installed at the bottom of the base 1 via a thread; the spraying device for anti-corrosion processing of electric heating tubes includes a spraying mechanism and a clamping mechanism, the spraying mechanism includes the protective cover 3, a spraying pump 201 fixedly installed on the protective cover 3, and the suction port of the spraying pump 201 connected to the spraying paint tank 7 via a rubber tube.

[0017] A filter device 202 is provided on the side of the spray pump 201. The filter device 202 contains a filter screen. The outlet of the spray pump 201 is connected to the filter device 202 through a rubber tube.

[0018] The outlet of the filter device 202 is fixedly connected to the outlet pipe 203, and the end of the outlet pipe 203 is fixedly connected to the annular spraying seat 205. The annular spraying seat 205 is fixedly installed in the middle position of the spraying frame 204.

[0019] The discharge pipe 203 has a multi-layer design. The outer layer of the discharge pipe 203 is made of rock wool material, the middle layer is an electric heating coil 206, and the innermost layer is a spraying conveying pipe. Six sets of spray nozzles 207 are evenly arranged below the annular spraying seat 205.

[0020] The spraying rack 204 has sliders 208 on both sides, and the protective cover 3 has grooves 209 on both sides that cooperate with the sliders 208. The sliders 208 are fixedly installed on the top of the piston rod 210, and the piston rod 210 is movably installed in the electric push rod seat 211, which together with the motor and other components therein constitutes the electric push rod.

[0021] Open the chamber door 5 and place the heating element to be sprayed onto the outside of the clamping seat 303. At this time, the cylinder 309 is started via the control cabinet 4, driving the top mounting plate 308 to rise. The mounting groove 313 of the mounting plate 308 drives the connecting rod 311 to move synchronously. Since the clamping seat 303 is frustum-shaped and the clamping block 305 slides along the guide groove 304, the connecting rod 311 will push the clamping block 305 to expand radially outward, so that the gripper 306 fits against the tube wall from inside the heating element to complete the clamping. The limiting block 312 prevents the connecting rod 311 from disengaging from the mounting plate 308, ensuring clamping stability. After closing the chamber door 5, the spraying pump 201 is started via the control cabinet 4. The spraying pump 201 draws anti-corrosion paint from the spraying paint bucket 7. The etching coating is conveyed to the filter device 202 via a rubber tube. The internal filter screen removes impurities from the coating, reducing the risk of nozzle 207 clogging. The filtered coating enters the discharge pipe 203, where the electric heating coil 206 in the jacket of the discharge pipe 203 heats the coating. The outer layer of rock wool material reduces heat loss and ensures that the coating maintains good fluidity. The coating is finally conveyed to the annular spraying seat 205, where six sets of nozzles 207 evenly distributed below it spray the outer circumference of the heating tube in all directions, avoiding dead corners. The piston rod 210 drives the slider 208 to move up and down along the slide groove 209 of the protective cover 3, thereby adjusting the height of the spraying frame 204 and the annular spraying seat 205 to ensure that the nozzle 207 is always aligned with the spraying area. Example

[0022] Based on Embodiment 1, the clamping mechanism mostly adopts an external clamping method, which easily obstructs the tube wall and causes spraying omissions. Furthermore, it has poor adaptability to heating tubes of different inner diameters, easily damages the workpiece surface during clamping, and results in significant waste of excess paint during spraying. Overall efficiency and quality need improvement. Therefore, this device is equipped with a clamping mechanism. Please refer to [link / reference]. Figures 1-5 This utility model provides a technical solution: a spraying device for anti-corrosion processing of electric heating tubes, the clamping mechanism includes a base 1, a material collection groove 301 is provided in the middle of the base 1, a filter screen 302 is provided at the bottom of the material collection groove 301, a clamping seat 303 is provided in the middle of the material collection groove 301, the clamping seat 303 is frustoconical, six sets of guide grooves 304 are provided on the side of the clamping seat 303, a clamping block 305 is movably installed in the guide groove 304, and a clamping claw 306 is fixedly installed on the clamping block 305.

[0023] A connecting rod 311 is fixedly installed on the inner side of the clamping block 305. A cavity 307 is provided in the clamping seat 303. An installation plate 308 is movably installed in the cavity 307. An installation groove 313 is provided in the installation plate 308 to cooperate with the radial movement of the connecting rod 311. A limit block 312 is fixedly installed on the top of the connecting rod 311. A spring 314 is provided on the connecting rod 311. The installation plate 308 is fixedly installed on the top of the cylinder 309. The cylinder 309 is fixedly installed on the bottom of the base 1. An isolation cover 310 is fixedly installed on the outer side of the cylinder 309.

[0024] Excess paint dripping during the spraying process falls into the collection trough 301 in the middle of the base 1. After being filtered again by the filter screen 302 at the bottom of the collection trough 301, it flows into the recycling bin 8 at the bottom of the base 1 through the pipe, realizing the recycling of paint and reducing waste. After the spraying is completed, the spraying pump 201 and the heating device are turned off, and the control cylinder 309 drives the mounting plate 308 to descend. The gripper 306 retracts under the restoring force of the spring 314, releasing the electric heating tube. The chamber door 5 is opened to take out the workpiece, and the recycling bin 8 can be unscrewed to process and reuse the recycled paint.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A spraying device for anti-corrosion processing of electric heating tubes, comprising a base (1), characterized in that: The base (1) is fixedly installed with a support leg (2), a protective cover (3) is fixedly installed on the base (1), a control cabinet (4) is fixedly installed on the side of the protective cover (3), a paint spraying bucket (7) is fixedly installed on the top of the protective cover (3), a door (5) is installed on the side of the protective cover (3) by means of a hinge, an observation window (6) is provided on the door (5), and a recycling bucket (8) is installed on the bottom of the base (1) by means of a thread. The spraying device for anti-corrosion processing of electric heating tubes includes a spraying mechanism and a clamping mechanism. The spraying mechanism includes a protective cover (3). A spraying pump (201) is fixedly installed on the protective cover (3). The suction port of the spraying pump (201) is connected to the spraying material tank (7) through a rubber tube.

2. The spraying device for anti-corrosion processing of electric heating tubes according to claim 1, characterized in that: The side of the spray pump (201) is provided with a filter device (202), and the filter device (202) is provided with a filter screen. The outlet of the spray pump (201) is connected to the filter device (202) through a rubber tube.

3. The spraying device for anti-corrosion processing of electric heating tubes according to claim 2, characterized in that: The outlet of the filter device (202) is fixedly connected to the outlet pipe (203), and the end of the outlet pipe (203) is fixedly connected to the annular spraying seat (205). The annular spraying seat (205) is fixedly installed in the middle position of the spraying frame (204).

4. The spraying device for anti-corrosion processing of electric heating tubes according to claim 3, characterized in that: The discharge pipe (203) is a multi-layer design. The outer layer of the discharge pipe (203) is made of rock wool material, the middle layer is an electric heating coil (206), and the innermost layer is a spraying conveying pipe. Six sets of nozzles (207) are evenly arranged below the annular spraying seat (205).

5. The spraying device for anti-corrosion processing of electric heating tubes according to claim 4, characterized in that: The spraying rack (204) has sliders (208) on both sides, and the protective cover (3) has grooves (209) on both sides that cooperate with the sliders (208). The sliders (208) are fixedly installed on the top of the piston rod (210), and the piston rod (210) is movably installed in the electric actuator seat (211).

6. The spraying device for anti-corrosion processing of electric heating tubes according to claim 5, characterized in that: The clamping mechanism includes a base (1), a material collection trough (301) is provided in the middle of the base (1), a filter screen (302) is provided at the bottom of the material collection trough (301), a clamping seat (303) is provided in the middle of the material collection trough (301), the clamping seat (303) is frustum shaped, six sets of guide grooves (304) are provided on the side of the clamping seat (303), a clamping block (305) is movably installed in the guide groove (304), and a clamping claw (306) is fixedly installed on the clamping block (305).

7. A spraying device for anti-corrosion processing of electric heating tubes according to claim 6, characterized in that: A connecting rod (311) is fixedly installed on the inner side of the clamping block (305). A cavity (307) is provided in the clamping seat (303). An installation plate (308) is movably installed in the cavity (307). An installation groove (313) is provided in the installation plate (308) to cooperate with the radial movement of the connecting rod (311). A limit block (312) is fixedly installed at the top of the connecting rod (311). A spring (314) is provided on the connecting rod (311). The installation plate (308) is fixedly installed on the top of the cylinder (309). The cylinder (309) is fixedly installed on the bottom of the base (1). An isolation cover (310) is fixedly installed on the outer side of the cylinder (309).

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