A pump shell surface anticorrosion spraying device

Abstract

The application provides a pump shell surface anticorrosion spraying equipment, and belongs to the technical field of paint spraying devices; the equipment comprises a base, a shroud is fixed on the base, a rotary table is rotatably connected in the shroud, the rotary table is used for positioning and driving the pump shell to rotate, a lifting mechanism is arranged in the shroud, a spray gun for spraying the pump shell is mounted on the side of the lifting mechanism, and the equipment further comprises a filtering mechanism; the filtering mechanism comprises a filter cartridge which is detachably connected to the top of the shroud, the shroud is communicated with the filter cartridge, a rotating drum is rotatably connected in the filter cartridge, and a servo motor is fixed on the side of the filter cartridge. Through the arrangement of the filtering mechanism, the activated carbon particles are turned over in the accommodating cavity during the rotation of the rotating drum, the activated carbon particles at different positions in the accommodating cavity can be contacted with the air inlet hole position, the activated carbon particles are fully utilized, the activated carbon particles at the air inlet hole are prevented from being blocked after long-time use, and the utilization rate of the activated carbon particles is improved.

Description

Technical Field

[0001] This invention relates to the field of paint spraying equipment technology, and in particular to a pump casing surface anti-corrosion spraying equipment. Background Technology

[0002] A centrifugal pump mainly consists of a pump casing, pump shaft, impeller, and motor. The motor drives the impeller to rotate at high speed inside the pump casing via the pump shaft, drawing liquid in through the pump casing's suction port. After the impeller rotates, the liquid is thrown out by centrifugal force and discharged from the pump casing's outlet. During the production process, the pump casing also needs to be coated with anti-corrosion paint. This coating forms a protective film on the surface of the pump casing, isolating it from oxygen, moisture, and corrosive media, thus preventing corrosion. When applying the anti-corrosion paint, the pump casing is placed on a turntable, and the motor drives the pump casing to rotate via the turntable. During the rotation of the pump casing, the paint pump delivers the anti-corrosion paint to the spray gun. The spray gun moves up and down and sprays the anti-corrosion paint to coat the pump casing.

[0003] A search revealed that Chinese invention patent CN109675752B discloses a spraying device for centrifugal pump casing processing. This device eliminates the need for manual spraying, saving manpower and improving work efficiency. It also allows for rapid cooling of the sprayed pump casing, preventing dust from adhering to the paint layer and ensuring the effectiveness of the spraying, thus improving practicality. Furthermore, it can treat excess paint mist generated during the spraying process, preventing pollution of the working environment, protecting worker health, and improving reliability. The device includes a workbench, paint tank, booster pump, spray pipe, spray gun, "U"-shaped box, drive motor, left turntable, right turntable, left shaft, right shaft, first conveyor chain, second conveyor chain, first ball bearing, second ball bearing, left gear, right gear, and multiple sets of conveying devices. It also includes a rotating rack, painting device, drying device, processing box, negative pressure fan, adsorption device, and exhaust pipe.

[0004] The aforementioned patent utilizes a placement plate to drive the pump casing to rotate. During the rotation of the pump casing, the spray gun moves up and down to spray paint to achieve the spraying treatment of the pump casing. The paint mist particles generated during the spraying process are sucked in by an exhaust fan and transported to the placement cylinder. The airflow carries the paint mist particles from the bottom to the top of the placement cylinder. During the flow, they are filtered by activated carbon particles inside the placement cylinder. However, because the paint mist particles in the airflow are in contact with the activated carbon particles at the bottom of the placement cylinder for a long time, a large number of paint mist particles adhere to the inside of the activated carbon particles at the bottom, causing blockage of the pores inside the activated carbon particles at the bottom. Since there are fewer paint mist particles inside the activated carbon particles at the bottom, when the activated carbon particles at the bottom are blocked, the entire activated carbon particles in the placement cylinder need to be replaced. The utilization rate of activated carbon particles is not high. Therefore, this application provides a pump casing surface anti-corrosion spraying device to meet the needs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pump casing surface anti-corrosion spraying device to solve the problem that when the activated carbon particles at the bottom of the placement cylinder become blocked, the activated carbon particles in the placement cylinder need to be replaced as a whole, resulting in low utilization of activated carbon particles.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A pump casing surface anti-corrosion spraying device includes a base, a protective cover fixed on the base, a turntable rotatably connected inside the protective cover for positioning and driving the pump casing to rotate, a lifting mechanism inside the protective cover, and a spray gun for spraying the pump casing mounted on the side of the lifting mechanism. The device also includes:

[0008] The filtration mechanism includes a filter cylinder detachably connected to the top of a protective cover, the protective cover being connected to the filter cylinder, a rotating cylinder being rotatably connected inside the filter cylinder, a servo motor being fixed to the side of the filter cylinder, the output end of the servo motor being movably inserted through the filter cylinder and fixedly connected to the end of the rotating cylinder, several receiving cavities being opened inside the rotating cylinder, an air outlet pipe being provided inside the rotating cylinder, two rows of air inlets penetrating the rotating cylinder being opened on the side of the receiving cavity away from the air outlet pipe, the receiving cavity being filled with activated carbon particles, several air outlet holes being opened on the side of the inner wall of the receiving cavity near the air outlet pipe, a through groove being opened at the bottom of the air outlet pipe corresponding to the position of the air outlet hole, a cylinder cover being detachably connected to the side of the filter cylinder away from the servo motor, a centrifugal fan being fixed to the side of the cylinder cover by a bracket, the air outlet end of the air outlet pipe penetrating the cylinder cover and being connected to the centrifugal fan, a sealing ring being fixed to the inner wall of the filter cylinder, the sealing ring being close to the circumferential surface of the rotating cylinder on the side near the rotating cylinder;

[0009] An internal cleaning mechanism is disposed within the receiving cavity;

[0010] An external cleaning assembly is disposed inside the filter cartridge and located outside the rotating cartridge;

[0011] During the operation of the centrifugal fan, the servo motor drives the rotating drum to rotate intermittently, changing the receiving cavity opposite to the sealing ring. During this process, the inner cleaning mechanism pushes the paint mist particles in the air inlet out of the rotating drum, and works with the outer cleaning component to remove the paint mist particles located outside the rotating drum.

[0012] Preferably, the end of the rotating drum away from the servo motor is provided with a discharge groove that communicates with the receiving cavity, and a cover plate is detachably connected to the end of the rotating drum corresponding to the position of the discharge groove.

[0013] Preferably, the number of accommodating cavities is six, and the single rotation angle of the rotating drum is sixty degrees.

[0014] Preferably, the internal cleaning mechanism includes two rings fixedly sleeved on the air outlet pipe and a connecting rod disposed in the receiving cavity. The air outlet and the through groove are both located between the two rings. An annular groove 1 is formed on the circumference of the rings. An annular groove 2 is formed on both opposite sides of the inner wall of the annular groove 1. A protrusion is provided in the annular groove 2. A set of guide rods is fixed on one side of the connecting rod, and two rows of inserts for cleaning the air inlet are fixed on the other side of the connecting rod. The end of the guide rod away from the connecting rod movably passes through the rotating cylinder and is fixed with a roller. The surface of the roller is movably connected to the inner wall of the annular groove 2. Elastic levers are symmetrically arranged on opposite sides of the connecting rod. During the rotation of the roller along the inner wall of the annular groove 2 by the rotating cylinder, the protrusion in the annular groove 2 squeezes the roller, causing the connecting rod to drive the inserts to open the two adjacent elastic levers and insert them into the air inlet, thereby cleaning the inner wall of the air inlet. A de-adhesive plate is fixedly connected to the connecting rod, and a cutting edge is formed on the side of the de-adhesive plate away from the connecting rod.

[0015] Preferably, the elastic lever includes a fixed part, a bending part, and a folding part connected in sequence. The elastic lever is connected to the connecting rod through the fixed part. The bending part and the folding part are separated from the connecting rod. The ends of the two folding parts near the air inlet holes are inclined towards the space between the two rows of air inlet holes. The ends of the two folding parts near the air inlet holes are close to each other and fit against the inner wall of the receiving cavity. The two rows of inserts are located between the two folding parts. The side of the two rows of inserts that are far apart from each other abuts against the folding parts. When the two symmetrically arranged folding parts move away from each other along the inner wall of the receiving cavity, the folding parts that fit against the inner wall of the receiving cavity push the activated carbon particles away from the air inlet hole position.

[0016] Preferably, a second guide surface is provided on the side of the bent portion away from the bending portion, and a guide strip is provided on the inner wall of the receiving cavity. The guide strip is located between two adjacent rows of air inlets. The cross-section of the guide strip is an isosceles triangle. An arc-shaped first guide surface is symmetrically opened on the two hypotenuses of the guide strip. The side of the second guide surface away from the bent portion is adapted to the first guide surface.

[0017] Preferably, a reinforcing rib is fixed on the side of the bent portion away from the connecting rod, and the length direction of the reinforcing rib is parallel to the axial direction of the bent portion.

[0018] Preferably, a number of prying blocks corresponding to the air inlet are fixed on the side of the bent portion away from the insert block. When the prying blocks slide along the inner wall of the receiving cavity, they pick out the activated carbon particles stuck in the air inlet.

[0019] Preferably, the side of the connecting rod closest to the air outlet pipe is a curved surface that bends toward the air outlet pipe.

[0020] Preferably, the external cleaning component includes an arc-shaped scraper fixed to the inner wall of the filter cylinder. The arc-shaped scraper is located inside the sealing ring, and the blade of the arc-shaped scraper is in contact with the circumferential surface of the rotating cylinder. Several anti-sticking blocks are fixed on the side of the arc-shaped scraper and evenly distributed along the length of the arc-shaped scraper. A storage groove is provided at the bottom of the filter cylinder corresponding to the position below the arc-shaped scraper, and a sealing plate is detachably connected to the bottom of the filter cylinder corresponding to the storage groove.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] In the above scheme, through the setting of the filtration mechanism, during the operation of the centrifugal fan, the airflow carries paint mist particles into the receiving chamber, where activated carbon particles adsorb and filter them. After the activated carbon particles in one of the receiving chambers have filtered the paint mist particles in the airflow for a period of time, the remaining receiving chambers are rotated in sequence to the sealing ring position to filter the paint mist particles, thus extending the service life of the entire filtration mechanism. During the rotation of the drum, the activated carbon particles are flipped in the receiving chamber, so that the activated carbon particles at different positions in the receiving chamber can contact the air inlet, realizing the full utilization of the activated carbon particles and effectively preventing the activated carbon particles at the air inlet from becoming blocked after long-term use, thereby improving the utilization rate of activated carbon particles.

[0023] With the internal cleaning mechanism and external cleaning components, during the rotation of the drum, the rollers of the internal cleaning mechanism are squeezed by the protrusions inside the annular groove, causing the connecting rod to drive the insert block to open the two adjacent elastic baffles and insert into the air inlet hole, thereby cleaning the inner wall of the air inlet hole and preventing paint mist particles from clogging the air inlet hole, thus improving the smoothness of airflow. The insert block pushes the paint mist particles in the air inlet hole out of the drum. During the rotation of the drum, the arc-shaped scraper of the external cleaning component cleans the paint mist particles on the outside of the drum, preventing paint mist particles from adhering to the circumference of the drum and affecting the normal rotation of the drum.

[0024] The flexible baffle is designed to prevent activated carbon particles from entering between the insert block and the air inlet. This prevents the insert block from compressing the activated carbon particles and also prevents the activated carbon particles from affecting the movement of the insert block.

[0025] By setting up guide strips and utilizing the cooperation between guide surface one on the guide strips and guide surface two on the elastic lever plate, the elastic lever plate can be guided when it unfolds, making the unfolding of the elastic lever plate smoother. Attached Figure Description

[0026] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a right sectional view of the air outlet duct of the present invention;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0030] Figure 4 This is a cross-sectional view of the connecting rod of the present invention;

[0031] Figure 5 For the present invention Figure 3 Enlarged view of the structure at point B in the middle;

[0032] Figure 6 For the present invention Figure 3 Enlarged view of the structure at point C;

[0033] Figure 7 For the present invention Figure 3 Enlarged view of the structure at point D;

[0034] Figure 8 This is a cross-sectional view of the guide rod of the present invention;

[0035] Figure 9 This is a three-dimensional structural diagram of the rotating drum of the present invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the arc-shaped scraper of the present invention.

[0037] [Figure Labels]

[0038] 1. Base; 2. Protective cover; 3. Turntable; 4. Spray gun; 5. Filtering mechanism; 501. Filter cartridge; 502. Servo motor; 503. Rotary drum; 504. Receiving cavity; 505. Cylinder cover; 506. Air outlet duct; 507. Centrifugal fan; 508. Sealing ring; 509. Air inlet; 510. Air outlet; 511. Through groove; 6. Internal cleaning mechanism; 601. Circular ring; 602. Annular groove one; 603 6031. Annular groove II; 604. Protrusion; 605. Roller; 606. Guide rod; 607. Connecting rod; 608. Insert block; 609. Elastic lever plate; 6081. Bending part; 6082. Bend part; 6083. Guide surface II; 6084. Lever block; 609. Guide strip; 6091. Guide surface I; 7. External cleaning assembly; 701. Arc-shaped scraper; 702. Anti-adhesion block; 8. Adhesion breaking piece.

[0039] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0040] The anti-corrosion spraying equipment for pump casing surface provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0041] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0042] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0043] like Figures 1-10As shown, an embodiment of the present invention provides a pump casing surface anti-corrosion spraying device, including a base 1, a protective cover 2 fixed on the base 1, a turntable 3 rotatably connected inside the protective cover 2, a support fixed to the bottom of the inner wall of the protective cover 2, a motor fixed inside the support, and the motor driving the turntable 3 to rotate. The rotation of the turntable 3 drives the pump casing to rotate. The turntable 3 is used for positioning the pump casing and driving its rotation. The turntable 3 has a positioning groove adapted to the shape of the pump casing. The pump casing can be positioned by placing it in the positioning groove. A lifting mechanism is provided inside the protective cover 2. The lifting mechanism mainly consists of a guide rail, a motor, a screw, and a... The system consists of an internal threaded block, a guide rail vertically fixed to the bottom of the inner wall of the protective cover 2, a motor fixed to the top of the guide rail, and a screw rotatably connected inside the guide rail. The motor drives the screw to rotate or rotate in the opposite direction, thereby causing the screw to move the internal threaded block up or down along the inner wall of the guide rail. The internal threaded block then moves the spray gun 4 up or down. During the movement of the spray gun 4, the paint pump delivers anti-corrosion paint to the position of the spray gun 4. The spray gun 4 sprays the anti-corrosion paint to coat the surface of the pump casing, thereby preventing corrosion of the pump casing surface. The lifting mechanism is equipped with a spray gun 4 for spraying the pump casing, and also includes:

[0044] The filter mechanism 5 includes a filter cylinder 501 detachably connected to the top of the cover 2. The cover 2 is connected to the filter cylinder 501. A rotating cylinder 503 is rotatably connected inside the filter cylinder 501. A servo motor 502 is fixed to the side of the filter cylinder 501. The output end of the servo motor 502 passes through the filter cylinder 501 and is fixedly connected to the end of the rotating cylinder 503. The output shaft of the servo motor 502 passes through the filter cylinder 501. When the servo motor 502 is started, it drives the filter cylinder 501 to rotate intermittently. The rotating cylinder 503 has several receiving cavities 504 inside. An air outlet pipe 506 is provided inside the rotating cylinder 503. Two rows of air inlets 509 passing through the rotating cylinder 503 are opened on the side of the receiving cavity 504 away from the air outlet pipe 506. The receiving cavity 504 is filled with activated carbon particles, which occupy two-thirds of the space of the receiving cavity 504. In the cavity 504, several air outlet holes 510 are provided on the side of the inner wall near the air outlet pipe 506. A through groove 511 is provided at the bottom of the air outlet pipe 506 corresponding to the position of the air outlet hole 510. A cylinder cover 505 is detachably connected to the side of the filter cylinder 501 away from the servo motor 502. The cylinder cover 505 is fixed to the side of the filter cylinder 501 away from the servo motor 502 by screws. The cylinder cover 505 can be disassembled and assembled by removing and installing the screws. A centrifugal fan 507 is fixed to the side of the cylinder cover 505 by a bracket. The centrifugal fan 507 is fixed to the bracket by bolts. The air outlet end of the air outlet pipe 506 passes through the cylinder cover 505 and is connected to the centrifugal fan 507. A sealing ring 508 is fixed to the inner wall of the filter cylinder 501. The side of the sealing ring 508 near the rotating cylinder 503 fits against the circumferential surface of the rotating cylinder 503. The sealing ring 508 is used for sealing between the filter cylinder 501 and the rotating cylinder 503.

[0045] Internal cleaning mechanism 6 is disposed within the receiving cavity 504;

[0046] External cleaning component 7 is disposed inside the filter cartridge 501 and outside the rotating cartridge 503;

[0047] During the operation of the centrifugal fan 507, the servo motor 502 drives the rotating drum 503 to rotate intermittently, replacing the receiving cavity 504 opposite to the sealing ring 508. During this process, the inner cleaning mechanism 6 pushes the paint mist particles in the air inlet 509 out to the outside of the rotating drum 503, and works with the outer cleaning component 7 to remove the paint mist particles located outside the rotating drum 503.

[0048] like Figure 9 As shown, in this embodiment, the end of the rotating drum 503 away from the servo motor 502 is provided with a discharge chute connected to the receiving cavity 504. A cover plate is detachably connected to the end of the rotating drum 503 corresponding to the position of the discharge chute. When the activated carbon particles in the rotating drum 503 need to be replaced after a long period of use, the filter cartridge 501 is first removed from the top of the cover 2, and then the centrifugal fan 507 is removed from the side of the cover 505 and the centrifugal fan 507 is separated from the air outlet pipe 506. After separation, the cover 505 and filter cartridge are removed. Remove the cover plate from the side of the rotating drum 503 after removing the cover plate. After removing the cover plate, pour the activated carbon particles in the receiving cavity 504 out of the discharge trough. Then add new activated carbon particles into the receiving cavity 504. Install the cover plate in the discharge trough position. Then fix the cylinder cover 505 to the side of the filter cylinder 501. Then install the centrifugal fan 507 on the bracket and connect it to the end of the air outlet pipe 506. Then you can continue to use the filter mechanism 5 to adsorb and filter the paint mist particles generated by spraying anti-corrosion coating.

[0049] like Figure 4 As shown, in this embodiment, there are six accommodating cavities 504, and the single rotation angle of the rotating drum 503 is sixty degrees. The six accommodating cavities 504 rotate sequentially to the corresponding sealing ring 508 position, so as to realize the sequential use of activated carbon particles in the six accommodating cavities 504, thereby extending the service life of the entire filter mechanism 5.

[0050] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in this embodiment, the internal cleaning mechanism 6 includes two rings 601 fixedly sleeved on the air outlet pipe 506 and a connecting rod 606 disposed in the receiving cavity 504. The air outlet 510 and the through groove 511 are both located between the two rings 601. An annular groove 602 is formed on the circumferential surface of the rings 601. An annular groove 603 is formed on both opposite sides of the inner wall of the annular groove 602. A protrusion 6031 is provided in the annular groove 603. A set of guide rods 605 is fixed on one side of the connecting rod 606, and two rows of inserts 607 for cleaning the air inlet 509 are fixed on the other side of the connecting rod 606. The end of 605 away from the connecting rod 606 movably passes through the rotating drum 503 and is fixed with a roller 604. The surface of the roller 604 is movably connected to the inner wall of the annular groove 603. Elastic levers 608 are symmetrically arranged on both sides of the connecting rod 606. As the rotating drum 503 drives the roller 604 to rotate along the inner wall of the annular groove 603, the protrusion 6031 in the annular groove 603 squeezes the roller 604, causing the connecting rod 606 to drive the insert block 607 to open the two adjacent elastic levers 608 and insert into the air inlet 509, thus cleaning the inner wall of the air inlet 509. A de-adhesion piece 8 is fixedly connected to the connecting rod 606. A cutting edge is provided on the side away from the connecting rod 606. During the tumbling process of the activated carbon particles in the receiving cavity 504, the adhesion-breaking plate 8 and the cutting edge on the adhesion-breaking plate 8 prevent adjacent activated carbon particles from sticking together. A guide sleeve is fixed on the inner wall of the receiving cavity 504. When the guide rod 605 moves, it moves along the inner wall of the guide sleeve. The guide sleeve guides the movement of the guide rod 605, making the movement of the guide rod 605 smoother. During the rotation of the rotating drum 503, when the rotating drum 503 in one of the receiving cavities 504 drives the roller 604 to rotate along the inner wall of the annular groove 603 through the guide rod 605, when the roller 604 rotates... When the roller moves to the protrusion 6031 on the inner wall of the annular groove 603, the protrusion 6031 squeezes the roller 604, causing the roller 604 to drive the connecting rod 606 and the insert 607 to move towards the air inlet 509 of the receiving cavity 504 via the guide rod 605. During the movement of the insert 607 driven by the connecting rod 606, the two rows of inserts 607 squeeze the corresponding elastic plates 608 respectively, opening up the two adjacent elastic plates 608. Then the insert 607 is inserted into the air inlet 509 to clean the inner wall of the air inlet 509, preventing paint mist particles from clogging the air inlet 509, thereby improving the smoothness of airflow.

[0051] like Figure 5As shown, in this embodiment, the elastic lever 608 includes a fixed part, a bending part 6081, and a bending part 6082 connected in sequence. The elastic lever 608 is connected to the connecting rod 606 through the fixed part. Both the bending part 6081 and the bending part 6082 are separated from the connecting rod 606. The ends of the two bending parts 6082 near the air inlet 509 are inclined towards the space between the two rows of air inlet holes 509. The ends of the two bending parts 6082 near the air inlet 509 are close to each other and fit against the inner wall of the receiving cavity 504. The two rows of insert blocks 607 are located between the two bending parts 6082. The side of the two rows of insert blocks 607 that is far away from each other abuts against the bending part 6082. When the two symmetrically arranged bending parts 6082 move away from each other along the inner wall of the receiving cavity 504, the bending parts 6081 that fit against the inner wall of the receiving cavity 504... 2. The activated carbon particles are pushed away from the air inlet 509. The bent part 6081 is a spring sheet that can undergo elastic deformation. The thickness of the bent part 6082 is greater than that of the bent part 6081, and the bent part 6082 is hardened to prevent bending during movement. When the insert block 607 presses the elastic lever 608, the two adjacent bent parts 6082 move away from each other under the pressure of the insert block 607. During the away movement, the bent part 6082 rotates at the bent part 6081. The bent part 6082, which is in contact with the inner wall of the receiving cavity 504, pushes the activated carbon particles to the side of the two rows of air inlets 509 that are far apart from each other, and pushes the activated carbon particles away from the air inlet 509 to prevent the activated carbon particles from obstructing the insertion block 607 from being inserted into the air inlet 509.

[0052] like Figure 5 As shown, in this embodiment, a guide surface 6083 is provided on the side of the bent portion 6082 away from the bent portion 6081. A guide strip 609 is provided on the inner wall of the receiving cavity 504. The guide strip 609 is located between two adjacent rows of air inlets 509. The cross-section of the guide strip 609 is an isosceles triangle. An arc-shaped guide surface 6091 is symmetrically provided on the two hypotenuses of the guide strip 609. The side of the guide surface 6083 away from the bent portion 6082 is adapted to the guide surface 6091. When the insert block 607 presses the elastic lever 608, the two adjacent bent portions 6082 are pressed by the insert block 607 and move away from each other under the guidance of the guide surface 6091 on the guide strip 609. The movement of the bent portion 6082 is smoother through the cooperation of the guide surface 6083 and the guide surface 6091.

[0053] like Figure 5 As shown, in this embodiment, a reinforcing rib is fixed on the side of the bent portion 6081 away from the connecting rod 606. The length direction of the reinforcing rib is parallel to the axial direction of the bent portion 6081. The reinforcing rib is used to prevent the bent portion 6081 from twisting and deforming, so that the bent portion 6081 deforms along its bending direction when deformed.

[0054] like Figure 5 As shown, in this embodiment, a plurality of prying blocks 6084 corresponding to the air inlet 509 are fixed on the side of the bent portion 6082 away from the insert block 607. When the prying blocks 6084 slide along the inner wall of the receiving cavity 504, the prying blocks 6084 pick out the activated carbon particles stuck in the air inlet 509. When the bent portion 6082 slides along the inner wall of the receiving cavity 504, the prying blocks 6084 move with the bent portion 6082. The prying blocks 6084 pick out the activated carbon particles stuck in the air inlet 509, thereby making the movement of the bent portion 6082 smoother.

[0055] like Figure 4 As shown, in this embodiment, the side of the connecting rod 606 near the air outlet pipe 506 is a curved surface that bends toward the air outlet pipe 506. The curved surface is used to prevent activated carbon particles from accumulating on the side of the connecting rod 606 near the air outlet pipe 506, and to guide the movement of the activated carbon particles during the flipping process.

[0056] like Figure 6 and Figure 10 As shown, in this embodiment, the external cleaning component 7 includes an arc-shaped scraper 701 fixed to the inner wall of the filter cylinder 501. The arc-shaped scraper 701 is located inside the sealing ring 508, and the blade of the arc-shaped scraper 701 is in contact with the circumferential surface of the rotating cylinder 503. Several anti-sticking blocks 702 are fixed on the side of the arc-shaped scraper 701 and are evenly distributed along the length of the arc-shaped scraper 701. A storage groove is provided at the bottom of the filter cylinder 501 corresponding to the position below the arc-shaped scraper 701. A sealing plate is detachably connected to the bottom of the filter cylinder 501 corresponding to the storage groove. The sealing plate can be fixed to the bottom of the filter cylinder 501 corresponding to the storage groove position by screws. The screws can be removed and installed. To facilitate the installation and removal of the sealing plate, during the rotation of the rotating drum 503, the arc-shaped scraper 701 scrapes away the paint mist particles on the outside of the rotating drum 503 and the paint mist particles on the side of the insert block 607 away from the connecting rod 606, preventing the paint mist particles from adhering to the circumferential surface of the rotating drum 503 and affecting the normal rotation of the rotating drum 503. The anti-adhesion block 702 on the arc-shaped scraper 701 effectively prevents the scraped paint mist particles from adhering to the arc-shaped scraper 701. The scraped paint mist particles fall into the storage groove under their own gravity. The sealing plate can be removed from the bottom of the storage groove to take out the scraped paint mist particles from the storage groove. After taking them out, the sealing plate can be fixed to the bottom of the storage groove.

[0057] Working principle: The pump casing is placed in the positioning slot on the turntable 3, and the positioning slot positions the pump casing. Then, the motor and spray gun 4 are started. The motor drives the pump casing on the turntable 3 to rotate. During the rotation of the pump casing, the motor of the lifting mechanism is started to make the screw rotate in both directions, which causes the screw to drive the internal thread block to move up and down. The internal thread block drives the spray gun 4 to move up and down during the spraying of anti-corrosion coating to achieve spraying on the surface of the pump casing. During the spraying process, paint mist particles are generated around the pump casing.

[0058] The centrifugal fan 507 operates, causing the airflow carrying paint mist particles to enter the filter cylinder 501 from the top of the protective cover 2. The sealing ring 508 seals the space between the rotating cylinder 503 and the filter cylinder 501, allowing the airflow to enter only one of the receiving chambers 504 in the rotating cylinder 503. The airflow carrying paint mist particles enters the receiving chamber 504 through the air inlet 509, where it is adsorbed and filtered by the activated carbon particles in the receiving chamber 504. After filtration, the airflow passes through the air outlet 510 and the through groove 511 in sequence and enters the air outlet pipe 506. Under the action of the centrifugal fan 507, it is discharged from the air outlet of the centrifugal fan 507. After the activated carbon particles in one of the receiving chambers 504 have filtered the paint mist particles in the airflow for a period of time, the servo motor 502 drives the rotating cylinder 503 to rotate intermittently, causing the remaining receiving chambers 504 to rotate in sequence to the position of the sealing ring 508 to filter the paint mist particles, thus extending the service life of the entire filter mechanism 5.

[0059] During the rotation of the drum 503, the activated carbon particles in the multiple receiving cavities 504 are flipped in their respective receiving cavities 504. When one of the receiving cavities 504 rotates to the position of the sealing ring 508, the activated carbon particles at different positions in the receiving cavity 504 can come into contact with the air inlet 509, so as to make full use of the activated carbon particles, effectively prevent the activated carbon particles at the air inlet 509 from becoming blocked after long-term use, and improve the utilization rate of activated carbon particles.

[0060] Simultaneously, during the rotation of the rotating drum 503, when the rotating drum 503 in one of the receiving cavities 504 drives the roller 604 to rotate along the inner wall of the annular groove 603 via the guide rod 605, when the roller 604 rotates to the protrusion 6031 on the inner wall of the annular groove 603, the protrusion 6031 squeezes the roller 604, causing the roller 604 to drive the connecting rod 606 and the insert block 607 to move towards the air inlet 509 of the receiving cavity 504 via the guide rod 605. At the same time, the connecting rod 606 drives the elastic plate 608 to move, causing the elastic plate 608 to squeeze the guide strip 609. The bent part 6081 of the elastic plate 608 undergoes bending deformation. During the movement of the insert block 607 driven by the connecting rod 606, the two rows of insert blocks 607 squeeze the corresponding elastic plates 608 respectively, opening up the two adjacent elastic plates 608, and then the insert block 607 is inserted into the air inlet. In hole 509, the inner wall of air inlet 509 is cleaned to prevent paint mist particles from clogging the air inlet 509, thereby improving the smoothness of airflow. The rotating drum 503 continues to rotate, and the arc-shaped scraper 701 scrapes away the paint mist particles on the outside of the rotating drum 503 and the paint mist particles on the side of the insert block 607 away from the connecting rod 606, preventing the paint mist particles from adhering to the circumferential surface of the rotating drum 503 and affecting the normal rotation of the rotating drum 503. The anti-sticking block 702 on the arc-shaped scraper 701 effectively prevents the scraped paint mist particles from adhering to the arc-shaped scraper 701. The scraped paint mist particles fall into the collection groove under their own gravity. The sealing plate can be removed from the bottom of the collection groove to take out the scraped paint mist particles from the collection groove. After taking them out, the sealing plate can be fixed to the bottom of the collection groove. When cleaning the air inlet 509 in the remaining receiving cavity 504, the above steps can be repeated.

[0061] When the insert 607 presses the elastic lever 608, the two adjacent bent portions 6082 are pressed by the insert 607 and move away from each other under the guidance of the guide surface 6091 on the guide strip 609. During the away movement, the bent portion 6082 rotates at the bending portion 6081 position. The bent portion 6082, which is in contact with the inner wall of the receiving cavity 504, pushes the activated carbon particles to the side of the two rows of air inlets 509 that are far apart from each other, and pushes the activated carbon particles away from the air inlet 509 position to prevent the activated carbon particles from obstructing the insert 607 from being inserted into the air inlet 509.

[0062] After the roller 604 separates from the protrusion 6031, the roller 604, under the action of the inner wall of the annular groove 603, drives the connecting rod 606 to move in the opposite direction through the guide rod 605. The connecting rod 606 drives the insert block 607 to move in the opposite direction to the initial position. At the same time, the two elastic deflectors 608, under the elastic force of their own bending parts 6081, stick together and return to the initial position. The elastic deflectors 608 no longer squeeze the activated carbon particles, and the activated carbon particles can be piled up again at the air inlet 509 position.

[0063] When the activated carbon particles in the rotating drum 503 need to be replaced after a long period of use, first remove the filter cylinder 501 from the top of the cover 2, then remove the centrifugal fan 507 from the side of the cylinder cover 505 and separate the centrifugal fan 507 from the air outlet pipe 506. After separation, remove the cylinder cover 505 from the filter cylinder 501, then remove the cover plate on the side of the rotating drum 503. After removal, pour the activated carbon particles in the receiving cavity 504 out from the discharge trough, then add new activated carbon particles into the receiving cavity 504, install the cover plate in the discharge trough position, then fix the cylinder cover 505 to the side of the filter cylinder 501, then install the centrifugal fan 507 on the bracket and connect it to the end of the air outlet pipe 506. Then the filtration mechanism 5 can continue to be used to adsorb and filter the paint mist particles generated by spraying anti-corrosion coating.

[0064] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand this invention even without these detailed descriptions.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A kind of pump shell surface anticorrosion spraying equipment, including base (1), the base (1) is fixed with shroud (2), shroud (2) is rotationally connected with rotary table (3) in, rotary table (3) is used to position and drive pump shell rotation, shroud (2) is provided with lifting mechanism inside, lifting mechanism side is equipped with for the spray gun (4) of being used to the spraying of pump shell, it is characterized in that, Also includes: Filter mechanism (5), the filter mechanism (5) includes detachable connection in the top of the cover (2) filter cartridge (501), cover (2) is communicated with filter cartridge (501), the rotating connection is set up in filter cartridge (501) inside drum (503), servo motor (502) is fixed on the side of filter cartridge (501), the output end of servo motor (502) is movably penetrated through filter cartridge (501) and is fixedly connected with the end of drum (503), a plurality of containing cavities (504) are set up in the inside of drum (503), the air outlet pipe (506) is arranged in the inside of drum (503), two rows of air inlet holes (509) are set up on the side, away from the air outlet pipe (506) of containing cavity (504), the containing cavity (504) is filled with activated carbon particles, a plurality of air outlet holes (510) are set up on the side, close to the air outlet pipe (506) of containing cavity (504) inner wall, the bottom of air outlet pipe (506) is set up with the groove (511) corresponding air outlet hole (510) position, the side of cylinder cover (505) is detachably connected with the side, away from servo motor (502) of filter cartridge (501), the centrifugal fan (507) is fixed on the side of cylinder cover (505) through support, the air outlet end of air outlet pipe (506) is penetrated through cylinder cover (505) and is communicated with centrifugal fan (507), the inner wall of filter cartridge (501) is fixed with sealing ring (508), the side, close to drum (503) of sealing ring (508) is attached to the circumference of drum (503) surface, the end, away from servo motor (502) of drum (503) is set up with the discharge chute, and the discharge chute is communicated with containing cavity (504), the end of drum (503) is detachably connected with the cover plate corresponding discharge chute position; The inner cleaning mechanism (6) is arranged in the containing cavity (504), the outer cleaning assembly (7) is arranged in the filter cartridge (501), and the outer cleaning assembly (7) is located outside the drum (503), during the working process of the centrifugal fan (507), the servo motor (502) drives the intermittent rotation of the drum (503), and the containing cavity (504) opposite to the sealing ring (508) is replaced, in the process, the paint mist particles in the air inlet hole (509) are pushed out to the outside of the drum (503), and the paint mist particles located outside the drum (503) are removed in cooperation with the outer cleaning assembly (7); The internal cleaning mechanism (6) includes two rings (601) fixedly sleeved on the air outlet pipe (506) and a connecting rod (606) set in the receiving cavity (504). The air outlet (510) and the through groove (511) are both located between the two rings (601). An annular groove 1 (602) is opened on the circumference of the ring (601). An annular groove 2 (603) is opened on both opposite sides of the inner wall of the annular groove 1 (602). A protrusion (6031) is provided in the annular groove 2 (603). A set of guide rods (605) is fixed on one side of the connecting rod (606). Two rows of inserts (607) for cleaning the air inlet (509) are fixed on the other side of the connecting rod (606). The end of the guide rod (605) away from the connecting rod (606) The rotating drum (503) is connected to a roller (604). The surface of the roller (604) is movably connected to the inner wall of the annular groove (603). The connecting rod (606) is symmetrically provided with elastic levers (608) on both sides. During the rotation of the rotating drum (503) along the inner wall of the annular groove (603), the protrusion (6031) in the annular groove (603) squeezes the roller (604), causing the connecting rod (606) to drive the insert (607) to open the two adjacent elastic levers (608) and insert them into the air inlet (509), thereby cleaning the inner wall of the air inlet (509). A de-adhesion piece (8) is fixedly connected to the connecting rod (606). The de-adhesion piece (8) has a cutting edge on the side away from the connecting rod (606).

2. The pump case surface corrosion prevention spraying apparatus according to claim 1, characterized by, The number of the receiving cavities (504) is six, and the single rotation angle of the rotating cylinder (503) is sixty degrees.

3. The pump case surface corrosion-proof spraying apparatus according to claim 1, characterized in that, The elastic lever (608) includes a fixed part, a bent part (6081), and a folded part (6082) connected in sequence. The elastic lever (608) is connected to the connecting rod (606) through the fixed part. The bent part (6081) and the folded part (6082) are both separated from the connecting rod (606). The two folded parts (6082) are inclined towards the space between the two rows of air inlets (509) at the end near the air inlet. One end of the hole (509) is close to each other and fits against the inner wall of the receiving cavity (504). Two rows of inserts (607) are located between two bends (6082). The side of the two rows of inserts (607) that is far away from each other touches the bend (6082). When the two symmetrically arranged bends (6082) move away from each other along the inner wall of the receiving cavity (504), the bends (6082) that fit against the inner wall of the receiving cavity (504) push the activated carbon particles away from the air inlet hole (509).

4. The pump case surface corrosion-proof spraying apparatus according to claim 3, characterized in that, The bent portion (6082) is provided with a guide surface two (6083) on the side away from the bent portion (6081). A guide strip (609) is provided on the inner wall of the receiving cavity (504). The guide strip (609) is located between two adjacent rows of air inlets (509). The cross-section of the guide strip (609) is an isosceles triangle. An arc-shaped guide surface one (6091) is symmetrically opened on the two hypotenuses of the guide strip (609). The side of the guide surface two (6083) away from the bent portion (6082) is adapted to the guide surface one (6091).

5. The pump case surface corrosion-proof spraying apparatus according to claim 3, wherein A reinforcing rib is fixed on the side of the bent portion (6081) away from the connecting rod (606), and the length direction of the reinforcing rib is parallel to the axial direction of the bent portion (6081).

6. The pump case surface corrosion-proof spraying apparatus according to claim 3, wherein On the side of the bent portion (6082) away from the insert block (607), there are a number of pry blocks (6084) corresponding to the air inlet (509). When the pry block (6084) slides along the inner wall of the receiving cavity (504), the pry block (6084) picks out the activated carbon particles stuck in the air inlet (509).

7. The pump case surface corrosion-proof spraying apparatus according to claim 1, wherein The connecting rod (606) has a curved surface that bends toward the air outlet pipe (506) on the side near the air outlet pipe (506).

8. The pump case surface corrosion-proof spraying apparatus according to claim 1, wherein The external cleaning component (7) includes an arc-shaped scraper (701) fixed to the inner wall of the filter cylinder (501). The arc-shaped scraper (701) is located inside the sealing ring (508). The blade of the arc-shaped scraper (701) is in contact with the circumferential surface of the rotating cylinder (503). Several anti-sticking blocks (702) are fixed on the side of the arc-shaped scraper (701) and are evenly distributed along the length of the arc-shaped scraper (701). A storage groove is provided at the bottom of the filter cylinder (501) corresponding to the position below the arc-shaped scraper (701). A sealing plate is detachably connected to the bottom of the filter cylinder (501) corresponding to the storage groove.

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