Pump shell surface anti-corrosion spraying equipment

Abstract

The invention provides anti-corrosion spraying equipment for the surface of a pump shell, and belongs to the technical field of coating spraying devices. Comprising a base, a protective cover is fixed to the base, a rotary table is rotationally connected into the protective cover and used for positioning a pump shell and driving the pump shell to rotate, a lifting mechanism is arranged in the protective cover, and a spray gun used for spraying the pump shell is installed on the side face of the lifting mechanism. The filtering mechanism comprises a filtering cylinder detachably connected to the top of the protective cover, the protective cover is communicated with the filtering cylinder, a rotating cylinder is rotationally connected to the interior of the filtering cylinder, and a servo motor is fixed to the side face of the filtering cylinder. Through the arrangement of the filtering mechanism, in the rotating process of the rotating drum, activated carbon particles are overturned in the containing cavity, so that the activated carbon particles at different positions in the containing cavity can be in contact with the air inlet holes, full utilization of the activated carbon particles is realized, and blockage caused by long-time use of the activated carbon particles at the air inlet holes is effectively prevented; the utilization rate of activated carbon particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating spraying devices, and in particular to an anti-corrosion spraying device for the surface of a pump casing. Background Art

[0002] A centrifugal pump is mainly composed of a pump casing, a pump shaft, an impeller and an electric motor. The motor drives the impeller to rotate at high speed in the pump casing through the pump shaft, so that the liquid is sucked in from the suction port of the pump casing, and is thrown out by centrifugal force after the rotation of the impeller and discharged from the outlet of the pump casing. The pump casing also needs to be sprayed with anti-corrosion paint during the production process. By spraying the anti-corrosion paint, a protective film is formed on the surface of the pump casing to isolate oxygen, moisture and corrosive media to avoid corrosion of the pump casing. When spraying the anti-corrosion paint, place the pump casing on a turntable, and the motor drives the pump casing to rotate through the turntable. During the rotation of the pump casing, the paint pump transports the anti-corrosion paint to the spray gun, and the spray gun moves up and down and sprays the anti-corrosion paint to achieve spraying of the pump casing.

[0003] After searching, the Chinese invention patent with authorization announcement number CN109675752B discloses a spraying device for processing centrifugal pump casing, which does not require manual spraying, saves manpower and improves work efficiency; and can quickly cool the pump casing after spraying to avoid dust sticking to the paint layer, ensure the effect of spraying the pump casing and improve practicality; at the same time, it can process the excess paint mist generated during the spraying process to avoid pollution to the working environment, protect the health of workers and improve reliability; it includes a workbench, a paint box, a booster pump, a spray pipe, a spray gun, a "U"-shaped box, a drive motor, a left turntable, a right turntable, a left rotating shaft, a right rotating shaft, a first transmission chain, a second transmission chain, a first ball bearing, a second ball bearing, a left gear, a right gear and multiple sets of conveying devices, and also includes a rotating rack, a paint spraying device, a drying device, a processing box, a negative pressure fan, an adsorption device and an exhaust pipe.

[0004] The above-mentioned 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 spraying of the pump casing. The paint mist particles generated during the spraying process are sucked by the exhaust fan and transported to the placement tube position. The airflow carries the paint mist particles and flows from the bottom to the top of the placement tube. During the flow, the activated carbon particles in the placement tube filter them. However, since the paint mist particles in the airflow are in contact with the activated carbon particles at the bottom of the placement tube for a long time, a large number of paint mist particles are attached to the inside of the activated carbon particles at the bottom, causing the pores inside the activated carbon particles at the bottom to be blocked, while 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 activated carbon particles in the placement tube need to be replaced as a whole. The utilization rate of the activated carbon particles is not high. Therefore, the present application provides a pump casing surface anti-corrosion spraying equipment 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 tube are blocked, the activated carbon particles in the placement tube need to be replaced as a whole, and the utilization rate of the activated carbon particles is not high.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A pump casing surface anti-corrosion spraying device comprises a base, a shield is fixed on the base, a turntable is rotatably connected inside the shield, the turntable is used to position the pump casing and drive the pump casing to rotate, a lifting mechanism is arranged inside the shield, a spray gun for spraying the pump casing is installed on the side of the lifting mechanism, and further comprises: The filter mechanism comprises a filter cartridge detachably connected to the top of the protective cover, the protective cover is connected to the filter cartridge, a rotating drum is rotatably connected inside the filter cartridge, a servo motor is fixed on the side of the filter cartridge, the output end of the servo motor movably penetrates the filter cartridge and is fixedly connected to the end of the rotating drum, a plurality of accommodating chambers are provided inside the rotating drum, an air outlet pipe is arranged inside the rotating drum, two rows of air inlet holes penetrating the rotating drum are provided on the side of the accommodating chamber away from the air outlet pipe, activated carbon particles are filled in the accommodating chamber, a plurality of air outlet holes are provided on the side of the inner wall of the accommodating chamber close to the air outlet pipe, a through groove is provided at the bottom of the air outlet pipe corresponding to the position of the air outlet holes, a cartridge cover is detachably connected to the side of the filter cartridge away from the servo motor, a centrifugal fan is fixed to the side of the cartridge cover through a bracket, the air outlet end of the air outlet pipe penetrates the cartridge cover and is connected to the centrifugal fan, a sealing ring is fixed on the inner wall of the filter cartridge, and the sealing ring fits the circumferential surface of the rotating drum on the side close to the rotating drum; An internal cleaning mechanism, wherein the internal cleaning mechanism is disposed in the accommodating chamber; An external cleaning component, which is arranged inside the filter cylinder and outside the rotating cylinder; During the operation of the centrifugal fan, the servo motor drives the drum to rotate intermittently to replace the accommodating cavity opposite to the sealing ring. During this process, the internal cleaning mechanism pushes the paint mist particles in the air inlet hole out of the drum, and cooperates with the external cleaning component to remove the paint mist particles outside the drum.

[0007] Preferably, a discharge groove communicated with the accommodating cavity is provided at one end of the rotating drum away from the servo motor, and a cover plate is detachably connected to the end of the rotating drum corresponding to the position of the discharge groove.

[0008] Preferably, the number of the accommodating chambers is six, and the single rotation angle of the rotating drum is sixty degrees.

[0009] Preferably, the inner cleaning mechanism comprises two circular rings fixedly sleeved on the air outlet pipe and a connecting rod arranged in the accommodating cavity, the air outlet hole and the through groove are both located between the two circular rings, an annular groove one is opened on the circumferential surface of the circular ring, annular groove two is opened on opposite sides of the inner wall of the annular groove one, a convex portion is arranged in the annular groove two, a group of guide rods are fixed on one side of the connecting rod, and two rows of plug blocks for cleaning the air inlet hole are fixed on the other side of the connecting rod, one end of the guide rod away from the connecting rod movably penetrates the rotating drum and is fixed with rollers, the surface of the roller is movably connected to the inner wall of the annular groove two, and elastic paddles are symmetrically arranged on the opposite sides of the connecting rod, and during the process of the rotating drum driving the roller to rotate along the inner wall of the annular groove two, the convex portion in the annular groove two squeezes the roller so that the connecting rod drives the plug block to open the two adjacent elastic paddle plates and insert into the air inlet hole, so as to clean the inner wall of the air inlet hole, and a breaking adhesion piece is fixedly connected to the connecting rod, and a cutting edge is opened on the side of the breaking adhesion piece away from the connecting rod.

[0010] Preferably, the elastic shift plate includes a fixed portion, a curved portion and a bent portion which are connected in sequence, the elastic shift plate is connected to the connecting rod through the fixed portion, the curved portion and the bent portion are separated from the connecting rod, one end of the two bent portions close to the air inlet holes is inclined toward between the two rows of air inlet holes, one end of the two bent portions close to the air inlet holes is close to each other and fits against the inner wall of the accommodating chamber, the two rows of plug blocks are located on the side where the two bent portions are close to each other, and the side where the two plug blocks are away from each other is in conflict with the bent portion, and when the two symmetrically arranged bent portions move away from each other along the inner wall of the accommodating chamber, the bent portion that fits against the inner wall of the accommodating chamber pushes the activated carbon particles to the side where the two rows of air inlet holes are away from each other.

[0011] Preferably, a guide surface 2 is provided on the side of the bending portion away from the bending portion, and a guide strip is provided on the inner wall of the accommodating cavity. The guide strip is located between two adjacent rows of air inlet holes. The cross-section of the guide strip is an isosceles triangle. Arc-shaped guide surfaces 1 are symmetrically provided on the two oblique sides of the guide strip, and the side of the guide surface 2 away from the bending portion is matched with the guide surface 1.

[0012] Preferably, a reinforcing rib is fixed to a side of the curved portion away from the connecting rod, and a length direction of the reinforcing rib is parallel to an axial direction of the curved portion.

[0013] Preferably, a plurality of shifting blocks corresponding to the air inlet holes are fixed to a side of the bending portion away from the inserting block, and when the shifting blocks slide along the inner wall of the accommodating cavity, the shifting blocks pick out the activated carbon particles stuck in the air inlet holes.

[0014] Preferably, a side of the connecting rod close to the air outlet pipe is a curved surface bent toward the air outlet pipe.

[0015] Preferably, the external cleaning component includes an arc scraper fixed on the inner wall of the filter cartridge, the arc scraper is located inside the sealing ring, the blade of the arc scraper is in contact with the circumferential surface of the rotating drum, a number of anti-sticking blocks evenly distributed along the length direction of the arc scraper are fixed to the side of the arc scraper, a storage groove is provided at the bottom of the filter cartridge corresponding to the position below the arc scraper, and a sealing plate is detachably connected to the bottom of the filter cartridge corresponding to the storage groove.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, through the setting of the filtering mechanism, during the operation of the centrifugal fan, the airflow carries the paint mist particles into the receiving chamber, and the 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 multiple receiving chambers are rotated to the sealing ring position in turn to filter the paint mist particles, thereby extending the service life of the entire filtering 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 position, thereby fully utilizing the activated carbon particles, effectively preventing the activated carbon particles at the air inlet from being blocked after long-term use, and improving the utilization rate of the activated carbon particles.

[0017] Through the arrangement of the internal cleaning mechanism and the external cleaning assembly, during the rotation of the drum, the roller of the internal cleaning mechanism is squeezed by the second inner protrusion of the annular groove, so that the connecting rod drives the plug block to open the two adjacent elastic plates and insert it into the air inlet, thereby cleaning the inner wall of the air inlet and preventing the paint mist particles from clogging the air inlet, thereby improving the smoothness of the air flow. The plug block pushes the paint mist particles in the air inlet to the outside of the drum. During the rotation of the drum, the paint mist particles on the outside of the drum are cleaned by the arc-shaped scraper of the external cleaning assembly, thereby preventing the paint mist particles from adhering to the circumferential surface of the drum and affecting the normal rotation of the drum.

[0018] The elastic plate is provided to prevent the activated carbon particles from entering between the plug block and the air inlet hole. On the one hand, it prevents the plug block from compressing the activated carbon particles. On the other hand, it prevents the activated carbon particles from entering between the plug block and the air inlet hole and affecting the movement of the plug block.

[0019] By setting the guide strip and utilizing the cooperation between the first guide surface on the guide strip and the second guide surface on the elastic pick plate, the elastic pick plate can be guided when it is unfolded, so that the elastic pick plate can be unfolded more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0021] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a right sectional view of the air outlet pipe of the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure at center; Figure 4 It is a front cross-sectional view of the connecting rod of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle; Figure 6 For the present invention Figure 4 A magnified view of the structure at C in the middle; Figure 7 For the present invention Figure 4 A magnified view of the structure at D in the middle; Figure 8 It is a front cross-sectional view of the guide rod of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating drum of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the arc scraper of the present invention.

[0022] [Reference Signs] 1. Base; 2. Shield; 3. Turntable; 4. Spray gun; 5. Filter mechanism; 501. Filter cartridge; 502. Servo motor; 503. Rotating cartridge; 504. Accommodating chamber; 505. Cylinder cover; 506. Air outlet pipe; 507. Centrifugal fan; 508. Sealing ring; 509. Air inlet hole; 510. Air outlet hole; 511. Through slot; 6. Internal cleaning mechanism; 601. Ring; 602. Annular slot 1; 603 , annular groove two; 6031, raised portion; 604, roller; 605, guide rod; 606, connecting rod; 607, plug block; 608, elastic plate; 6081, bending portion; 6082, bending portion; 6083, guide surface two; 6084, pull block; 609, guide strip; 6091, guide surface one; 7, external cleaning component; 701, arc scraper; 702, anti-adhesion block; 8, adhesion-breaking sheet.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The pump casing surface anti-corrosion spraying equipment provided by the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0025] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0026] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0027] like Figure 1-Figure 10 As shown, an embodiment of the present invention provides a pump casing surface anti-corrosion spraying device, including a base 1, a shield 2 is fixed on the base 1, a turntable 3 is rotatably connected in the shield 2, a support is fixed at the bottom of the inner wall of the shield 2, a motor is fixed in the support, the motor is used to drive the turntable 3 to rotate, the rotation of the turntable 3 can drive the pump casing to rotate, the turntable 3 is used to position the pump casing and drive the pump casing to rotate, a positioning groove adapted to the shape of the pump casing is opened on the turntable 3, the pump casing can be positioned by placing it in the positioning groove, a lifting mechanism is arranged in the shield 2, and the lifting mechanism is mainly composed of a guide rail, a motor, a screw and The internal thread block is composed of a guide rail vertically fixed at the bottom position of the inner wall of the shield 2, a motor is fixed at the top of the guide rail, a screw is rotatably connected in the guide rail, the motor drives the screw to rotate or reversely rotate, so that the screw drives the internal thread block to move upward or downward along the inner wall of the guide rail, and the internal thread block can drive the spray gun 4 to move upward or downward. During the movement of the spray gun 4, the paint pump transports the anti-corrosion paint to the position of the spray gun 4, and the spray gun 4 sprays the anti-corrosion paint to realize the spraying of the pump shell surface, thereby preventing the pump shell surface from being corroded. The side of the lifting mechanism is equipped with a spray gun 4 for spraying the pump shell, and also includes: The filtering mechanism 5 includes a filter cartridge 501 detachably connected to the top of the protective cover 2, the protective cover 2 is communicated with the filter cartridge 501, a rotating drum 503 is rotatably connected inside the filter cartridge 501, a servo motor 502 is fixed to the side of the filter cartridge 501, an output end of the servo motor 502 movably penetrates the filter cartridge 501 and is fixedly connected to the end of the rotating drum 503, an output shaft of the servo motor 502 passes through the filter cartridge 501, and the servo motor 502 is started, and the servo motor 502 can drive the filter cartridge 501 to rotate intermittently, a plurality of accommodating chambers 504 are provided inside the rotating drum 503, an air outlet pipe 506 is provided inside the rotating drum 503, two rows of air inlet holes 509 penetrating the rotating drum 503 are provided on one side of the accommodating chamber 504 away from the air outlet pipe 506, the accommodating chamber 504 is filled with activated carbon particles, and the activated carbon particles occupy two-thirds of the space of the accommodating chamber 504. A plurality of air outlet holes 510 are provided on the inner wall of the accommodating chamber 504 near the air outlet pipe 506, and 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 cartridge 501 away from the servo motor 502, and the cylinder cover 505 is fixed to the side of the filter cartridge 501 away from the servo motor 502 by screws. The cylinder cover 505 can be disassembled and assembled after the screws are removed. A centrifugal fan 507 is fixed to the side of the cylinder cover 505 through a bracket, and 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 cartridge 501, and the sealing ring 508 is in contact with the circumferential surface of the rotating drum 503 near the rotating drum 503, and the sealing ring 508 is used for sealing between the filter cartridge 501 and the rotating drum 503; An internal cleaning mechanism 6, the internal cleaning mechanism 6 is arranged in the accommodating chamber 504; The external cleaning component 7 is arranged inside the filter cylinder 501 and outside the rotating cylinder 503; During the operation of the centrifugal fan 507, the servo motor 502 drives the drum 503 to rotate intermittently, replacing the accommodating chamber 504 opposite to the sealing ring 508. During this process, the internal cleaning mechanism 6 pushes the paint mist particles in the air inlet hole 509 out of the drum 503, and cooperates with the external cleaning component 7 to remove the paint mist particles outside the drum 503.

[0028] like Fig. 9As shown, in this embodiment, a discharge groove connected to the accommodating chamber 504 is provided at one end of the rotating drum 503 away from the servo motor 502, and a cover plate is detachably connected to the end of the rotating drum 503 corresponding to the position of the discharge groove. When the activated carbon particles in the rotating drum 503 need to be replaced after being used for a long time, the filter cartridge 501 is first removed from the top of the protective cover 2, and then the centrifugal fan 507 is removed from the side of the cartridge cover 505 and the centrifugal fan 507 is separated from the air outlet pipe 506. After separation, the cartridge cover 505 is removed from the filter cartridge. 501 is removed, and then the cover plate on the side of the rotating drum 503 is removed. After removal, the activated carbon particles in the accommodating chamber 504 are poured out from the discharge chute, and then new activated carbon particles are added into the accommodating chamber 504. The cover plate is installed at the position of the discharge chute, and then the cylinder cover 505 is fixed to the side of the filter cylinder 501. Then the centrifugal fan 507 is installed on the bracket and connected to the end of the air outlet pipe 506. Then the filtering mechanism 5 can continue to be used to adsorb and filter the paint mist particles generated by the spraying of the anti-corrosion coating.

[0029] like Figure 4 As shown, in this embodiment, the number of the accommodating chambers 504 is six, the single rotation angle of the drum 503 is sixty degrees, and the six accommodating chambers 504 are rotated to the corresponding sealing ring 508 positions in turn, so that the activated carbon particles in the six accommodating chambers 504 can be used in turn, thereby extending the service life of the entire filtering mechanism 5.

[0030] 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 arranged in the accommodating chamber 504, the air outlet hole 510 and the through groove 511 are both located between the two rings 601, an annular groove 1 602 is provided on the circumferential surface of the ring 601, an annular groove 2 603 is provided on both sides of the inner wall of the annular groove 1 602, and a protrusion 6031 is provided in the annular groove 2 603, a group of guide rods 605 are fixed on one side of the connecting rod 606, and two rows of plugs 607 for cleaning the air inlet hole 509 are fixed on the other side of the connecting rod 606, and the guide rods One end of 605 away from the connecting rod 606 movably penetrates 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. The connecting rod 606 is symmetrically provided with elastic plates 608 on both sides. During the process of the rotating drum 503 driving the roller 604 to rotate along the inner wall of the annular groove 603, the raised portion 6031 in the annular groove 603 squeezes the roller 604 so that the connecting rod 606 drives the insert block 607 to open the two adjacent elastic plates 608 and insert them into the air inlet hole 509, so as to clean the inner wall of the air inlet hole 509. The connecting rod 606 is fixedly connected with a breaking adhesion sheet 8. The breaking adhesion sheet 8 is provided with a cutting edge on the side away from the connecting rod 606. When the activated carbon particles are turned over in the accommodating chamber 504, the adhesion-breaking sheet 8 and the cutting edge on the adhesion-breaking sheet 8 prevent the adjacent activated carbon particles from adhering to each other. A guide sleeve is fixed to the inner wall of the accommodating chamber 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 at one of the accommodating chambers 504 drives the roller 604 to rotate along the inner wall of the annular groove 2 603 through the guide rod 605, when the roller 604 rotates When it moves to the raised portion 6031 on the inner wall of the second annular groove 603, the raised portion 6031 squeezes the roller 604, so that the roller 604 drives the connecting rod 606 and the plug block 607 to move toward the air inlet hole 509 of the accommodating cavity 504 through the guide rod 605. In the process of the connecting rod 606 driving the plug block 607 to move, the two rows of plug blocks 607 squeeze the corresponding elastic plates 608 respectively, and open the two adjacent elastic plates 608. Then the plug block 607 is inserted into the air inlet hole 509 to clean the inner wall of the air inlet hole 509 and prevent the paint mist particles from blocking the air inlet hole 509, thereby improving the smoothness of the airflow.

[0031] like Figure 5As shown, in this embodiment, the elastic plate 608 includes a fixed portion and a bent portion 6081 and a bent portion 6082 that are connected in sequence, the elastic plate 608 is connected to the connecting rod 606 through the fixed portion, the bent portion 6081 and the bent portion 6082 are separated from the connecting rod 606, one end of the two bent portions 6082 close to the air inlet hole 509 is inclined toward between the two rows of air inlet holes 509, one end of the two bent portions 6082 close to the air inlet hole 509 is close to each other and fits against the inner wall of the accommodating cavity 504, the two rows of plug blocks 607 are located on the side where the two bent portions 6082 are close to each other, and the side of the two plug blocks 607 that are away from each other conflicts with the bent portion 6082, and when the two symmetrically arranged bent portions 6082 move away from each other along the inner wall of the accommodating cavity 504, the bent portions 6082 that fit against the inner wall of the accommodating cavity 504 The activated carbon particles are sent to the side where the two rows of air inlet holes 509 are away from each other. The bending portion 6081 is a spring sheet that can undergo elastic deformation. The thickness of the bending portion 6082 is greater than that of the bending portion 6081, and the bending portion 6082 is hardened to prevent the bending portion 6082 from bending during movement. When the plug block 607 squeezes the elastic plate 608, the two adjacent bending portions 6082 move away from each other under the squeezing action of the plug block 607. During the divergent movement, the bending portion 6082 rotates at the position of the bending portion 6081, and the bending portion 6082 that is in contact with the inner wall of the accommodating chamber 504 sends the activated carbon particles to the side where the two rows of air inlet holes 509 are away from each other, and pushes the activated carbon particles away from the position of the air inlet holes 509, so as to prevent the activated carbon particles from obstructing the insertion of the plug block 607 into the air inlet holes 509.

[0032] like Figure 5 As shown, in this embodiment, a second guide surface 6083 is provided on the side of the bending portion 6082 away from the bending portion 6081, and a guide strip 609 is provided on the inner wall of the accommodating cavity 504. The guide strip 609 is located between two adjacent rows of air inlet holes 509. The cross section of the guide strip 609 is an isosceles triangle. Arc-shaped guide surfaces 1 6091 are symmetrically provided on the two oblique sides of the guide strip 609. The side of the second guide surface 6083 away from the bending portion 6082 is matched with the first guide surface 6091. When the plug block 607 squeezes the elastic paddle 608, the two adjacent bending portions 6082 are squeezed by the plug block 607 and move away from each other under the guidance of the first guide surface 6091 on the guide strip 609. The movement of the bending portion 6082 is smoother through the cooperation between the second guide surface 6083 and the first guide surface 6091.

[0033] like Figure 5 As shown, in this embodiment, a reinforcing rib is fixed on the side of the bending portion 6081 away from the connecting rod 606, and the length direction of the reinforcing rib is parallel to the axial direction of the bending portion 6081. The reinforcing rib is used to prevent the bending portion 6081 from twisting and deforming, so that the bending portion 6081 deforms along its bending direction when deforming.

[0034] like Figure 5 As shown, in this embodiment, a plurality of shift blocks 6084 corresponding to the air inlet hole 509 are fixed on the side of the bending portion 6082 away from the plug block 607. When the shift block 6084 slides along the inner wall of the accommodating chamber 504, the shift block 6084 picks out the activated carbon particles stuck in the air inlet hole 509. When the bending portion 6082 slides along the inner wall of the accommodating chamber 504, the shift block 6084 moves with the bending portion 6082, and the activated carbon particles stuck in the air inlet hole 509 are picked out by the shift block 6084, thereby making the movement of the bending portion 6082 smoother.

[0035] like Figure 4 As shown, in this embodiment, the side of the connecting rod 606 close to the air outlet pipe 506 is a curved surface that bends in the direction of the air outlet pipe 506. The curved surface is used to prevent the activated carbon particles from accumulating on the side of the connecting rod 606 close to the air outlet pipe 506, and to guide the movement of the activated carbon particles during the flipping process.

[0036] like Figure 6 and Fig.10 As shown, in this embodiment, the external cleaning component 7 includes an arc scraper 701 fixed to the inner wall of the filter cartridge 501, the arc scraper 701 is located inside the sealing ring 508, the blade of the arc scraper 701 is in contact with the circumferential surface of the rotating drum 503, and a plurality of anti-adhesion blocks 702 evenly distributed along the length direction of the arc scraper 701 are fixed to the side of the arc scraper 701, a storage groove is provided at the bottom of the filter cartridge 501 corresponding to the position below the arc scraper 701, and a sealing plate is detachably connected to the corresponding storage groove at the bottom of the filter cartridge 501, and the sealing plate can be fixed to the corresponding storage groove position at the bottom of the filter cartridge 501 by screws, and the screws can be disassembled and assembled To realize the disassembly and assembly of the sealing plate, during the rotation of the drum 503, the arc scraper 701 scrapes off the paint mist particles on the outside of the drum 503 and the paint mist particles on the side of the plug block 607 away from the connecting rod 606, to prevent the paint mist particles from adhering to the circumferential surface of the drum 503 and affecting the normal rotation of the drum 503. The anti-adhesion block 702 on the arc scraper 701 effectively prevents the scraped paint mist particles from adhering to the arc scraper 701. The scraped paint mist particles fall into the storage groove under the action of their own gravity. The scraped paint mist particles can be removed from the storage groove by removing the sealing plate from the bottom of the storage groove, and then the sealing plate can be fixed to the bottom of the storage groove after removal.

[0037] Working principle: Place the pump casing in the positioning groove on the turntable 3, and position the pump casing by the positioning groove. Then start the motor and the spray gun 4. 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 starts to make the screw rotate forward and reverse, so that the screw drives 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 process of spraying the anti-corrosion paint to achieve spraying on the surface of the pump casing. During the spraying process, paint mist particles are generated around the pump casing. The operation of the centrifugal fan 507 causes the airflow to carry the paint mist particles into the filter cartridge 501 from the top of the shield 2. The sealing ring 508 seals the drum 503 and the filter cartridge 501, so that the airflow can only enter one of the accommodating chambers 504 in the drum 503. The airflow carries the paint mist particles into the accommodating chamber 504 along the air inlet hole 509 of the accommodating chamber 504, and the activated carbon particles in the accommodating chamber 504 adsorb and filter the paint mist particles. The filtered airflow passes through the air outlet hole 510 and the through groove 511 in turn and enters the air outlet pipe 506, and is discharged from the air outlet position of the centrifugal fan 507 under the action of the centrifugal fan 507. After the activated carbon particles in one of the accommodating chambers 504 filter the paint mist particles in the airflow for a period of time, the servo motor 502 drives the drum 503 to rotate intermittently, so that the remaining multiple accommodating chambers 504 rotate in turn to the position of the sealing ring 508 to filter the paint mist particles, thereby extending the service life of the entire filter mechanism 5. During the rotation of the drum 503, the activated carbon particles in the multiple accommodating chambers 504 are turned over in the corresponding accommodating chambers 504. When one of the accommodating chambers 504 is rotated to the position of the sealing ring 508, the activated carbon particles at different positions in the accommodating chamber 504 can all contact the position of the air inlet hole 509, so that the activated carbon particles are fully utilized, and the activated carbon particles at the air inlet hole 509 are effectively prevented from being blocked after long-term use, thereby improving the utilization rate of the activated carbon particles. At the same time, during the rotation of the drum 503, when the drum 503 at one of the accommodating 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 to the protrusion 6031 on the inner wall of the annular groove 603, the protrusion 6031 squeezes the roller 604, so that the roller 604 drives the connecting rod 606 and the plug block 607 to move toward the air inlet hole 509 of the accommodating cavity 504 through the guide rod 605, and at the same time, the connecting rod 606 drives the elastic plate 608 to move, so that the elastic plate 608 squeezes the guide strip 609, and the bending portion 6081 of the elastic plate 608 is bent and deformed. During the process of the connecting rod 606 driving the plug block 607 to move, the two rows of plug blocks 607 squeeze the corresponding elastic plates 608 respectively, and the two adjacent elastic plates 608 are stretched apart, and then the plug block 607 is inserted into the air inlet hole 509. The paint mist particles are then removed from the bottom of the storage tank 504 and the paint mist particles are then removed from the bottom of the storage tank 504. When the plug block 607 squeezes the elastic plate 608, the two adjacent bent portions 6082 are squeezed by the plug block 607 and move away from each other under the guidance of the guide surface 1 6091 on the guide bar 609. During the movement away from each other, the bent portion 6082 rotates at the position of the bent portion 6081, and the bent portion 6082 in contact with the inner wall of the accommodating chamber 504 pushes the activated carbon particles to the side where the two rows of air inlet holes 509 are away from each other, and pushes the activated carbon particles away from the position of the air inlet holes 509, so as to prevent the activated carbon particles from hindering the plug block 607 from being inserted into the air inlet hole 509. When the roller 604 is separated from the protrusion 6031, the roller 604 drives the connecting rod 606 to move in the opposite direction through the guide rod 605 under the action of the inner wall of the annular groove 603, and the connecting rod 606 drives the plug 607 to move in the opposite direction to the initial position. At the same time, the two elastic plates 608 are attached to each other and restored to the initial position under the elastic force of their own curved parts 6081. The elastic plates 608 no longer squeeze the activated carbon particles, and the activated carbon particles can be accumulated at the air inlet hole 509 again. When the activated carbon particles in the drum 503 need to be replaced after being used for a long time, the filter cartridge 501 is first removed from the top of the protective cover 2, and then the centrifugal fan 507 is removed from the side of the drum cover 505 and the centrifugal fan 507 is separated from the air outlet pipe 506. After separation, the drum cover 505 is removed from the filter cartridge 501, and then the cover plate on the side of the drum 503 is removed. After removal, the activated carbon particles in the accommodating chamber 504 are poured out from the discharge chute, and then new activated carbon particles are added to the accommodating chamber 504, the cover plate is installed at the position of the discharge chute, and then the drum cover 505 is fixed on the side of the filter cartridge 501, and then the centrifugal fan 507 is installed on the bracket and connected to the end of the air outlet pipe 506, and then the filtering mechanism 5 can continue to be used to adsorb and filter the paint mist particles generated by the spraying of anti-corrosion coatings.

[0038] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pump casing surface anti-corrosion spraying device, comprising a base (1), a shield (2) fixed on the base (1), a turntable (3) rotatably connected inside the shield (2), the turntable (3) being used to position the pump casing and drive the pump casing to rotate, a lifting mechanism being provided inside the shield (2), a spray gun (4) for spraying the pump casing being installed on the side of the lifting mechanism, characterized in that: Also includes: A filtering mechanism (5), the filtering mechanism (5) comprising a filter cartridge (501) detachably connected to the top of a protective cover (2), the protective cover (2) being connected to the filter cartridge (501), a rotating drum (503) being rotatably connected inside the filter cartridge (501), a servo motor (502) being fixed to the side of the filter cartridge (501), an output end of the servo motor (502) movably passing through the filter cartridge (501) and being fixedly connected to the end of the rotating drum (503), a plurality of accommodating chambers (504) being provided inside the rotating drum (503), an air outlet pipe (506) being provided inside the rotating drum (503), two rows of air inlet holes (509) penetrating the rotating drum (503) being provided on a side of the accommodating chamber (504) away from the air outlet pipe (506), the accommodating chamber (504) being filled with activated carbon particles, and an inner wall of the accommodating chamber (504) being close to the air outlet pipe (506). 6), a plurality of air outlet holes (510) are provided on one side of the filter cartridge (501), a through groove (511) is provided at the bottom of the air outlet pipe (506) at a position corresponding to the air outlet holes (510), a side of the filter cartridge (501) away from the servo motor (502) is detachably connected to a cartridge cover (505), a centrifugal fan (507) is fixed to the side of the cartridge cover (505) via a bracket, an air outlet end of the air outlet pipe (506) passes through the cartridge cover (505) and is connected to the centrifugal fan (507), a sealing ring (508) is fixed to the inner wall of the filter cartridge (501), a side of the sealing ring (508) close to the rotating drum (503) is in contact with the circumferential surface of the rotating drum (503), an end of the rotating drum (503) away from the servo motor (502) is provided with a discharge groove connected to the accommodating chamber (504), and a cover plate is detachably connected to the end of the rotating drum (503) corresponding to the position of the discharge groove.

2. The pump casing surface anti-corrosion spraying equipment according to claim 1 is characterized in that: An internal cleaning mechanism (6) is provided in the accommodating chamber (504), an external cleaning assembly (7) is provided in the filter cartridge (501), and the external cleaning assembly (7) is located outside the rotating drum (503). During operation of the centrifugal fan (507), the servo motor (502) drives the rotating drum (503) to rotate intermittently, and the accommodating chamber (504) opposite to the sealing ring (508) is replaced. During this process, the internal cleaning mechanism (6) pushes the paint mist particles in the air inlet hole (509) out of the rotating drum (503), and cooperates with the external cleaning assembly (7) to remove the paint mist particles outside the rotating drum (503).

3. The pump casing surface anti-corrosion spraying equipment according to claim 1 is characterized in that: The number of the accommodating chambers (504) is six, and the single rotation angle of the rotating drum (503) is sixty degrees.

4. The pump casing surface anti-corrosion spraying equipment according to claim 2 is characterized in that: The internal cleaning mechanism (6) comprises two circular rings (601) fixedly sleeved on the air outlet pipe (506) and a connecting rod (606) arranged in the accommodating chamber (504); the air outlet hole (510) and the through groove (511) are both located between the two circular rings (601); an annular groove 1 (602) is provided on the circumferential surface of the circular ring (601); an annular groove 2 (603) is provided 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 group of guide rods (605) is fixed on one side of the connecting rod (606); two rows of plugs (607) for cleaning the air inlet hole (509) are fixed on the other side of the connecting rod (606); a portion of the guide rod (605) away from the connecting rod (606) is provided with a protrusion (6031); The end of 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 second annular groove (603). The connecting rod (606) is symmetrically provided with elastic plates (608) on opposite sides. When the rotating drum (503) drives the roller (604) to rotate along the inner wall of the second annular groove (603), the protrusion (6031) in the second annular groove (603) squeezes the roller (604), so that the connecting rod (606) drives the insert block (607) to open two adjacent elastic plates (608) and insert them into the air inlet hole (509), thereby cleaning the inner wall of the air inlet hole (509). A breaking adhesion sheet (8) is fixedly connected to the connecting rod (606), and a cutting edge is provided on the side of the breaking adhesion sheet (8) away from the connecting rod (606).

5. The pump casing surface anti-corrosion spraying equipment according to claim 4 is characterized in that: The elastic plate (608) comprises a fixed portion, a curved portion (6081) and a bent portion (6082) which are connected in sequence. The elastic plate (608) is connected to the connecting rod (606) via the fixed portion. The curved portion (6081) and the bent portion (6082) are both separated from the connecting rod (606). One end of the two bent portions (6082) close to the air inlet holes (509) is inclined toward between the two rows of air inlet holes (509). The two bent portions (6082) close to the air inlet holes (509) are One end of the two blocks (607) is close to each other and fits with the inner wall of the accommodating chamber (504), the two rows of plug blocks (607) are located on the side where the two bent portions (6082) are close to each other, and the side where the two blocks (607) are away from each other contacts the bent portion (6082), and when the two symmetrically arranged bent portions (6082) move away from each other along the inner wall of the accommodating chamber (504), the bent portion (6082) that fits with the inner wall of the accommodating chamber (504) moves the activated carbon particles to the side where the two rows of air inlet holes (509) are away from each other.

6. The pump casing surface anti-corrosion spraying equipment according to claim 5 is characterized in that: A second guide surface (6083) is provided on a side of the bending portion (6082) away from the curved portion (6081); a guide strip (609) is provided on the inner wall of the accommodating cavity (504); the guide strip (609) is located between two adjacent rows of air inlet holes (509); the cross section of the guide strip (609) is an isosceles triangle; arc-shaped guide surfaces (6091) are symmetrically provided on two oblique sides of the guide strip (609); and a side of the second guide surface (6083) away from the bending portion (6082) is adapted to the first guide surface (6091).

7. The pump casing surface anti-corrosion spraying equipment according to claim 5 is characterized in that: A reinforcing rib is fixed to a side of the curved portion (6081) away from the connecting rod (606), and the length direction of the reinforcing rib is parallel to the axial direction of the curved portion (6081).

8. The pump casing surface anti-corrosion spraying equipment according to claim 5 is characterized in that: A plurality of shifting blocks (6084) corresponding to the air inlet holes (509) are fixed to a side of the bending portion (6082) away from the inserting block (607); when the shifting blocks (6084) slide along the inner wall of the accommodating cavity (504), the shifting blocks (6084) pick out the activated carbon particles stuck in the air inlet holes (509).

9. The pump casing surface anti-corrosion spraying equipment according to claim 4, characterized in that: A side of the connecting rod (606) close to the air outlet pipe (506) is a curved surface that bends in the direction of the air outlet pipe (506).

10. The pump casing surface anti-corrosion spraying equipment according to claim 2, characterized in that: The external cleaning component (7) comprises an arc-shaped scraper (701) fixed to the inner wall of the filter cartridge (501), the arc-shaped scraper (701) being located inside the sealing ring (508), the blade of the arc-shaped scraper (701) being in contact with the circumferential surface of the rotating drum (503), a plurality of anti-adhesion blocks (702) evenly distributed along the length direction of the arc-shaped scraper (701) being fixed to the side surface of the arc-shaped scraper (701), a receiving groove being provided at the bottom of the filter cartridge (501) corresponding to the position below the arc-shaped scraper (701), and a sealing plate being detachably connected to the bottom of the filter cartridge (501) corresponding to the receiving groove.

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