A spraying equipment for steel pipe processing

Abstract

The present invention relates to the field of steel pipe spraying, and in particular to a spraying device for steel pipe processing, including a fixed plate, a guide rod, a fixed ring, a spraying ring, a support rod and a driving assembly, etc.; two fixed plates are provided; a plurality of guide rods are detachably connected between all the fixed plates, and all the guide rods are detachably connected; the guide rods are detachably connected to a plurality of support rods; all the guide rods and the support rods are slidably connected to a fixed ring; all the fixed plates are connected to a driving assembly, and the driving assembly is connected to the fixed ring; the fixed ring is rotatably connected to a spraying ring, and a plurality of nozzles are equidistantly arranged in an annular manner on the spraying ring. The present invention adjusts the length of the present invention by installing the number of guide rods, so that the present invention can be adaptively sprayed on steel pipes with lengths that differ by several times, avoiding the need to use spraying equipment of different specifications to separately process steel pipes of different lengths.

Description

Technical Field

[0001] The invention relates to the field of steel pipe spraying, and in particular to a spraying device for steel pipe processing. Background Art

[0002] During the processing of steel pipes, a layer of anti-corrosion coating needs to be sprayed on the steel pipes to prevent the steel pipes from being corroded during subsequent use. The existing steel pipe spraying technology usually performs the spraying operation by fixing the steel pipes on the spraying equipment. However, due to the different requirements for the length of steel pipes in different application scenarios, the length of the steel pipes may differ by several times. The existing spraying equipment is difficult to adapt to the steel pipes with large length differences, resulting in the need to use spraying equipment of different specifications to separately process steel pipes of different lengths. Summary of the invention

[0003] In order to overcome the disadvantage that the existing spraying equipment is difficult to adapt to the spraying of steel pipes with greatly different lengths, and spraying equipment of different specifications is needed to process steel pipes of different lengths respectively, the present invention provides a spraying equipment for steel pipe processing.

[0004] The technical scheme is as follows: a spraying device for steel pipe processing, including a fixed plate and a clamping assembly; two fixed plates are provided; all fixed plates are connected to a clamping assembly; also includes a guide rod, a fixed ring, a spraying ring, a support rod and a driving assembly; a plurality of guide rods are detachably connected between all fixed plates, and all guide rods are detachably connected; the guide rods are detachably connected to a plurality of support rods, and slide grooves are provided on the guide rods and the support rods; all guide rods and support rods are slidably connected to a fixed ring, and the fixed ring cooperates with the slide grooves of the guide rods and the support rods through a protrusion, and the fixed ring is provided with a connecting groove, and the connecting groove is connected to an external paint conveying device through an air pipe; all fixed plates are connected to a driving assembly, and the driving assembly is connected to the fixed ring, and the fixed ring is driven to move left and right by the driving assembly; the fixed ring is rotatably connected to a spraying ring, and the spraying ring is provided with a spraying groove, and a plurality of nozzles are equidistantly arranged in a ring on the spraying ring, and the nozzles are connected to the spraying groove, and the spraying groove is connected to the connecting groove.

[0005] Preferably, the clamping assembly includes a two-way push rod, a clamping rod and a rotating plate I; all the fixed plates are fixedly connected to a plurality of two-way push rods; each telescopic end of all the two-way push rods is fixedly connected to a clamping rod; all the clamping rods are rotatably connected to a plurality of rotating plates I through torsion springs.

[0006] Preferably, it also includes an arc-shaped support plate and a rotating plate II; each two adjacent support rods in front and behind are slidably connected to a common arc-shaped support plate, the arc-shaped support plate is arranged to be arc-shaped, and the arc-shaped support plate is tangent to the two adjacent support rods; the arc-shaped support plate is provided with a protrusion I; the arc-shaped support plate is provided with a protrusion II; the support rods located in the front are rotatably connected to a rotating plate II, and the arc-shaped support plate and the adjacent rotating plate II are slidably connected, and the rotating plate II is provided with a limiting portion, and the arc-shaped support plate and the rotating plate II are both arranged to be deformable materials.

[0007] Preferably, it also includes an electric rotating rod I and an electric rotating rod II; the fixed ring is rotatably connected to an electric rotating rod I; the fixed ring is rotatably connected to an electric rotating rod II; and the electric rotating rod I and the electric rotating rod II are both tangent to the arc-shaped support plate.

[0008] Preferably, outer surfaces of the electric rotating rod I and the electric rotating rod II are both made of rubber material.

[0009] Preferably, it also includes a driving push rod and a pushing block; the arc-shaped support plate is set to a deformable material; the support rods located in the front are fixedly connected to a driving push rod; the telescopic ends of all the driving push rods are fixedly connected to a pushing block, and the pushing block is located below the adjacent rotating plate II.

[0010] Preferably, the fixing plate is provided with a telescopic rod, and the telescopic rod is provided with an adjusting cylinder.

[0011] Preferably, the spraying ring is fixedly connected with a cleaning roller, and the cleaning roller is located in front of the spraying ring.

[0012] Preferably, the fixed ring is provided with an air suction groove, and the air suction groove is connected with an external air pump and impurity collecting equipment through an air pipe, and a plurality of air suction holes are provided on the air suction groove, and the air suction holes are located on the left side of the fixed ring.

[0013] Preferably, a shielding film is also included, and the fixing ring is fixedly connected to the shielding film.

[0014] The beneficial effect is that the length of the invention is adjusted by installing the number of guide rods, so that the invention can be adaptively sprayed on steel pipes with lengths that differ by several times, avoiding the problem of using spraying equipment of different specifications to separately process steel pipes of different lengths;

[0015] The present invention supports the steel pipe by an arc-shaped support plate to prevent the middle of the steel pipe from sagging downward, which causes the distance between the middle of the steel pipe and the spraying ring to change, and the spraying ring cannot spray the middle of the steel pipe evenly; and the electric rotating rod I drives the arc-shaped support plate to rotate, so that the arc-shaped support plate avoids the fixed ring, and prevents the arc-shaped support plate from hindering the movement of the fixed ring;

[0016] The present invention uses a pushing block to push the rotating plate II to rotate upward, so that the middle and rear parts of the arc-shaped support plate are deformed downwardly and the bending degree of the arc-shaped support plate is reduced, even if the arc-shaped support plate gradually separates from the lower side of the steel pipe, so that the arc-shaped support plate is no longer in contact with the steel pipe, so that the steel pipe no longer applies pressure to the arc-shaped support plate, thereby avoiding the problem that the steel pipe applies a large pressure to the arc-shaped support plate, resulting in the electric rotating rod I being unable to drive the arc-shaped support plate to rotate through the friction between the electric rotating rod I and the arc-shaped support plate, thereby hindering the movement of the fixing ring;

[0017] The present invention first cleans off the metal debris and dust impurities adhered to the surface of the steel pipe through a cleaning roller to prevent the metal debris and dust impurities from affecting the spraying quality of the steel pipe, and sucks the dust generated by the cleaning roller into an external impurity collection device through an air suction groove to prevent the dust from floating to the right side of the spray ring and affecting the paint layer on the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure disclosed by the spraying equipment for steel pipe processing of the present invention;

[0019] Figure 2 It is a schematic diagram of the combined structure of the fixed plate, fixed ring, bidirectional push rod, gear, drive motor and cleaning roller disclosed in the spraying equipment for steel pipe processing of the present invention;

[0020] Figure 3 The schematic diagram of the combined structure of the fixed plate, the bidirectional push rod, the clamping rod, the rotating plate I, the sliding plate, the electric winding wheel and the rope disclosed in the spraying equipment for processing steel pipes of the present invention;

[0021] Figure 4 The schematic diagram of the combined structure of the fixing ring, the spraying ring, the gear, the driving motor, the gear ring, the electric rotating rod I, the electric rotating rod II, and the cleaning roller disclosed in the spraying equipment for processing steel pipes of the present invention;

[0022] Figure 5 A cross-sectional view of a fixing ring and a spraying ring disclosed in the spraying equipment for processing a steel pipe of the present invention;

[0023] Figure 6 It is a schematic diagram of the combined structure of the guide rod, the support rod, the arc-shaped support plate and the rotating plate II disclosed in the spraying equipment for processing steel pipes of the present invention;

[0024] Figure 7 The present invention is a schematic structural diagram of a guide rod, a support rod, an arc-shaped support plate, a rotating plate II, a driving push rod and a pushing block disclosed in the spraying equipment for processing steel pipes.

[0025] Explanation of the accompanying drawings: 1-fixed plate, 2-guide rod, 3-fixed ring, 4-spraying ring, 5-support rod, 101-bidirectional push rod, 102-clamping rod, 103-rotating plate I, 104-sliding plate, 105-electric winding wheel, 106-rope, 107-gear, 108-driving motor, 1010-toothed ring, 201-arc support plate, 202-rotating plate II, 203-electric rotating rod I, 204-electric rotating rod II, 301-driving push rod, 302-pushing block, 401-cleaning roller, 402-shielding film, 1001-telescopic rod, 3001-connecting groove, 3002-air suction groove, 4001-spraying groove, 20101-protrusion I, 20102-protrusion II, 20201-limiting part. DETAILED DESCRIPTION

[0026] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] A spraying device for steel pipe processing, such as Figure 1-Figure 7 As shown, it includes a fixing plate 1 and a clamping assembly; two fixing plates 1 are provided; all the fixing plates 1 are connected to a clamping assembly;

[0029] It also includes a guide rod 2, a fixing ring 3, a spraying ring 4, a support rod 5 and a driving assembly; a plurality of guide rods 2 are detachably connected between all the fixing plates 1, and all the guide rods 2 are detachably connected to each other, and the length of the adapted steel pipe can be adjusted by installing the number of guide rods 2; the guide rod 2 is detachably connected to at least two support rods 5, and a slide groove is provided on the guide rod 2 and the support rod 5; all the guide rods 2 and the support rod 5 are slidably connected to the fixing ring 3, and the fixing ring 3 cooperates with the slide grooves of the guide rod 2 and the support rod 5 through the protrusion, and the fixing ring 3 is provided with a connecting groove 3001, and the connecting groove 3001 is connected with an external paint conveying device through an air pipe; all the fixed plates 1 are connected with a driving component in common, and the driving component is connected with the fixed ring 3, and the fixed ring 3 is driven to move left and right by the driving component; the fixed ring 3 is rotatably connected with a spraying ring 4, and the spraying ring 4 is provided with a spraying groove 4001, and a plurality of nozzles are arranged on the spraying ring 4 in an annular manner at equal intervals, and the nozzles are connected with the spraying groove 4001, and the spraying groove 4001 is connected with the connecting groove 3001, and the steel pipe is sprayed through the spraying ring 4.

[0030] The clamping assembly includes a two-way push rod 101, a clamping rod 102 and a rotating plate Ⅰ103; all the fixed plates 1 are fixedly connected to the two two-way push rods 101; each telescopic end of all the two-way push rods 101 is fixedly connected to a clamping rod 102; all the clamping rods 102 are rotatably connected to the two rotating plates Ⅰ103 through torsion springs.

[0031] The driving assembly includes a sliding plate 104, an electric winding wheel 105, a rope 106, a gear 107, a driving motor 108 and a gear ring 1010; all the fixed plates 1 are fixedly connected to a sliding plate 104; all the sliding plates 104 are rotatably connected to an electric winding wheel 105; all the electric winding wheels 105 are wound with a rope 106, and the rope 106 is detachably connected to the fixed ring 3; the fixed ring 3 is rotatably connected to a gear 107; the fixed ring 3 is bolted to a driving motor 108, and the output shaft of the driving motor 108 is fixedly connected to the gear 107; the spray ring 4 is fixedly connected to the gear ring 1010, and the gear ring 1010 is meshed with the gear 107.

[0032] It also includes an arc-shaped support plate 201 and a rotating plate II 202; each two adjacent support rods 5 in front and behind are slidably connected to a common arc-shaped support plate 201, the arc-shaped support plate 201 is set to be arc-shaped, and the arc-shaped support plate 201 is tangent to the two adjacent support rods 5; the arc-shaped support plate 201 is provided with a protrusion I 20101; the arc-shaped support plate 201 is provided with a protrusion II 20102, and the steel pipe is supported by the arc-shaped support plate 201; the support rods 5 located in the front are rotatably connected to a rotating plate II 202, and the arc-shaped support plate 201 and the adjacent rotating plate II 202 are connected in a damping sliding manner, and the rotating plate II 202 is provided with a limiting portion 20201, and the arc-shaped support plate 201 and the rotating plate II 202 are both set to deformable materials.

[0033] It also includes an electric rotating rod I203 and an electric rotating rod II204; the fixed ring 3 is rotatably connected to an electric rotating rod I203; the fixed ring 3 is rotatably connected to an electric rotating rod II204; and the electric rotating rod I203 and the electric rotating rod II204 are both tangent to the arc support plate 201; the electric rotating rod I203 and the electric rotating rod II204 are both driven to rotate by a motor.

[0034] The outer surfaces of the electric rotating rod I 203 and the electric rotating rod II 204 are both made of rubber material, so as to increase the friction between the electric rotating rod I 203 and the electric rotating rod II 204 and the arc-shaped support plate 201 .

[0035] It also includes a driving push rod 301 and a pushing block 302; the arc-shaped support plate 201 is set to a deformable material; the support rods 5 located in the front are fixedly connected to a driving push rod 301; the telescopic ends of all driving push rods 301 are fixedly connected to a pushing block 302, and the pushing block 302 is located below the adjacent rotating plate II 202.

[0036] The fixed plate 1 is provided with a telescopic rod 1001, and the telescopic rod 1001 is provided with an adjustment cylinder. The fixed plate 1 is supported by the telescopic rod 1001 so that the fixed plate 1 remains in an upright state.

[0037] The working steps of the above embodiment are: first, the staff pulls the fixed plate 1, the fixed ring 3 and all the parts connected thereto and several guide rods 2 to the storage place of the steel pipe, then lifts the steel pipe by a crane, then puts the fixed ring 3 and all the parts connected thereto on the steel pipe, and then fixes the rope 106 and the fixed ring 3 together, then the staff pulls the telescopic rod 1001 to rotate toward the opposite sides of the two fixed plates 1, and after the telescopic rod 1001 is stretched to contact the ground, the telescopic rod 1001 is limited by the adjusting cylinder on the telescopic rod 1001, so that the fixed plate 1 is supported by the telescopic rod 1001, so that the two fixed plates 1 stand up, and the two clamping rods 102 on the fixed plate 1 are inserted into the steel pipe, Then, the two clamping rods 102 are pushed to move back to each other by the two-way push rod 101, so as to support the two ends of the steel pipe in turn, and then the two guide rods 2 are installed on the right fixing plate 1, and the slide groove of the guide rod 2 is aligned with the raised part of the fixing ring 3, and then the remaining guide rods 2 are installed one by one on the right guide rod 2 from right to left, so as to increase the length of the guide rod 2. When three guide rods 2 are installed, two support rods 5 are installed on the leftmost guide rod 2 from right to left in turn, and then three guide rods 2 are installed on the leftmost support rod 5 from right to left in turn. The number of guide rods 2 installed can be adjusted according to the length of the steel pipe, and then the guide rod 2 is stopped, and then the leftmost guide rod 2 is installed together with the left fixing plate 1, forming a shape as shown in FIG. Figure 1 Thus, the length of the steel pipe can be adapted by installing the number of guide rods 2, so that the present invention can be adaptively sprayed for steel pipes with lengths that differ by several times, avoiding the need to use spraying equipment of different specifications to separately handle the problem of steel pipes of different lengths.

[0038] Then, the rope 106 is wound up by rotating the left electric winding wheel 105, and the rope 106 is loosened by rotating the right electric winding wheel 105, thereby pulling the fixed ring 3 to move to the left. During the movement of the fixed ring 3 to the left, the gear 107 is driven to rotate by the driving motor 108. Since the gear 107 is meshed with the gear ring 1010, the gear 107 drives the gear ring 1010 and the spray ring 4 to rotate. At the same time, the paint is input into the connecting groove 3001 through the paint conveying device connected to the fixed ring 3, and then the paint enters the spray ring 4 through the connecting groove 3001, and then is sprayed out from the nozzle on the spray ring 4, thereby spraying the paint on the steel pipe.

[0039] Since some steel pipes are relatively long, the above-mentioned method of supporting and fixing the two ends of the steel pipe cannot provide absolutely stable fixation for the steel pipe with large mass, resulting in unstable spraying work and the phenomenon that the middle part of the steel pipe sags downward, resulting in changes in the distance between the middle part of the steel pipe and the spraying ring 4, and the spraying ring 4 cannot spray the middle part of the steel pipe evenly. Therefore, the steel pipe is supported by the arc support plate 201 to prevent the middle part of the steel pipe from drooping downward. Since the arc support plate 201 is in contact with the steel pipe, the arc support plate 201 is in the moving path of the fixing ring 3, which will hinder the movement of the fixing ring 3, and the contact part between the arc support plate 201 and the steel pipe cannot be sprayed in place. Therefore, when the electric rotating rod Ⅰ203 moves to the left until it contacts the arc support plate 201, the electric rotating rod Ⅰ203 is controlled to rotate clockwise from right to left. Since the electric rotating rod Ⅰ203 is in contact with the arc support plate 201, when the electric rotating rod Ⅰ203 rotates, the arc support plate 201 can be driven to rotate counterclockwise from right to left through the friction between the electric rotating rod Ⅰ203 and the arc support plate 201, that is, the arc support plate 201 slides on the rotating plate Ⅱ202, and when the arc support plate 201 slides to the point where the protrusion Ⅰ20101 contacts the limit portion 20201, the arc support plate 201 cannot continue to slide, and at this time the arc support plate 201 is no longer in contact with the steel pipe, and is no longer in the moving path of the fixed ring 3, thereby avoiding the fixed ring 3, preventing the arc support plate 201 from hindering the movement of the fixed ring 3, and the steel pipe is supported by the remaining arc support plates 201, so the steel pipe will not fall after the arc support plate 201 rotates.

[0040] Due to the heavy weight of the steel pipe, the pressure exerted by the steel pipe on the arc support plate 201 is relatively large, resulting in the electric rotating rod I 203 being unable to drive the arc support plate 201 to rotate through the friction between the electric rotating rod I 203 and the arc support plate 201, thereby hindering the movement of the fixed ring 3. Therefore, when the electric rotating rod I 203 moves to the left until it is about to contact the arc support plate 201, the driving push rod 301 pushes the push block 302 to move upward. When the push block 302 contacts the rotating plate II 202, the push block 302 will push the rotating plate II 202 to deform upward, so that the rotating plate II 202 pushes the arc support plate 2 The front end of 01 is deformed upwardly by flipping, so that the middle and rear parts of the arc support plate 201 are deformed downwardly by concave deformation, and the bending degree of the arc support plate 201 is reduced. Even if the arc support plate 201 is gradually separated from the lower side of the steel pipe, the arc support plate 201 is no longer in contact with the steel pipe, so that the steel pipe no longer applies pressure to the arc support plate 201, thereby avoiding the problem that the steel pipe applies a large pressure to the arc support plate 201, resulting in the electric rotating rod Ⅰ203 being unable to drive the arc support plate 201 to rotate through the friction between the arc support plate 201, so that the arc support plate 201 will still hinder the movement of the fixing ring 3.

[0041] When the fixed ring 3 moves to the left side of the arc-shaped support plate 201 and the electric rotating rod II 204 moves to the left until it contacts the arc-shaped support plate 201, the electric rotating rod II 204 is controlled to rotate counterclockwise from right to left, thereby driving the arc-shaped support plate 201 to rotate clockwise from right to left, so that the arc-shaped support plate 201 is reset to the lower side of the steel pipe, and then the arc-shaped support plate 201 supports the steel pipe again.

[0042] When the electric rotating rod II 204 drives the arc support plate 201 to reset, the rotating plate II 202 has pushed the front end of the arc support plate 201 to flip and deform upward, so that the bending degree of the arc support plate 201 is reduced, that is, the highest point of the arc support plate 201 moves downward. Therefore, the arc support plate 201 will not contact the steel pipe when it is reset and rotated, thereby avoiding the problem of scratching the paint just sprayed on the steel pipe when the arc support plate 201 is reset; then, when the arc support plate 201 rotates to contact the rear support rod 5, the arc support plate 201 will no longer be tangent to the rear support rod 5 because the bending degree of the arc support plate 201 is reduced. Therefore, the arc support plate 201 will be squeezed by the support rod 5 after continuing to rotate, causing the arc support plate 201 to be deformed, and under the guidance of the side of the support rod 5, the arc support plate 201 moves to the upper side of the support rod 5, and then when the arc support plate 201 rotates until the protrusion II 20102 located on its front side contacts with the limiting portion 20201, the arc support plate 201 is reset. At this time, the push rod 301 is driven to pull the push block 302 downward, so that the rotating plate II 202 is no longer limited by the push block 302, and then the arc support plate 201 and the rotating plate II 202 resume their deformation, so that the arc support plate 201 contacts the steel pipe again to support the steel pipe.

[0043] Then, when the fixing ring 3 moves to the left until it contacts the fixing plate 1 on the left, the steel pipe is sprayed. Then, after the staff uses a crane to hang the steel pipe, the staff disassembles the fixing plate 1 on the left from the guide rod 2, and then separates the fixing ring 3 from the rope 106. Then, the two-way push rod 101 is used to pull the clamping rod 102 and the rotating plate Ⅰ103 to move toward each other, so that the clamping rod 102 no longer fixes the steel pipe, and then the left fixing plate 1 is pulled to the left, thereby pulling the left two-way push rod 101 and the clamping rod 102 out of the steel pipe, and then the right fixing plate 1 and the guide rod 2 are pushed to the right to pull the right two-way push rod 101 and the clamping rod 102 out of the steel pipe, and the steel pipe is no longer restricted by the two-way push rod 101 and the clamping rod 102. Then, the staff uses a crane to lift the sprayed steel pipe to the steel pipe storage place;

[0044] Then the staff pulls the telescopic rod 1001 to rotate to the left, and after stretching the telescopic rod 1001 until it touches the ground, the staff limits the telescopic rod 1001 through the adjustment tube on the telescopic rod 1001, so that the left fixed plate 1 is supported by the telescopic rod 1001, so that the left fixed plate 1 remains in an upright state; then the staff hangs a new steel pipe to the left side of the right two-way push rod 101 and the clamping rod 102, and then the staff pushes the right fixed plate 1 and the guide rod 2 to move to the left, so that the right two-way push rod 101 and the clamping rod 102 are inserted into the steel pipe, so as to fix the right end of the steel pipe; then Then the staff puts the fixing ring 3 and the spraying ring 4 on the new steel pipe with the electric rotating rod Ⅰ203 facing to the right, and fixes the rope 106 to the fixing ring 3 again. Then the staff turns the adjusting cylinder on the telescopic rod 1001 so that the adjusting cylinder on the telescopic rod 1001 no longer limits the telescopic rod 1001. After the telescopic rod 1001 is retracted, the staff pushes the left fixing plate 1 to the right, thereby inserting the left two-way push rod 101 and the clamping rod 102 into the steel pipe to fix the left end of the steel pipe, and then puts the fixing ring 3 and the spraying ring 4 on the steel pipe, and then starts to spray the new steel pipe.

[0045] Example 2

[0046] On the basis of Example 1, Figure 4-Figure 5 As shown, the spray ring 4 is fixedly connected to a cleaning roller 401, and the cleaning roller 401 is located in front of the spray ring 4. The cleaning roller 401 is used to clean off metal debris adhering to the surface of the steel pipe to prevent the metal debris from blocking the paint from being sprayed on the steel pipe.

[0047] The fixed ring 3 is provided with an air suction groove 3002 , and the air suction groove 3002 is connected with an external air pump and impurity collection equipment through an air pipe, and the air suction groove 3002 is provided with a plurality of air suction holes arranged in an annular manner and at equal intervals, and the air suction holes are located on the left side of the fixed ring 3 .

[0048] It also includes a shielding film 402, and the fixing ring 3 is fixedly connected to the shielding film 402. The shielding film 402 blocks dust from entering between the fixing ring 3 and the steel pipe, thereby further providing dust-proof protection for the spraying work of the steel pipe.

[0049] The working steps of the above embodiment are: since a large amount of metal debris will be generated when the steel pipe is cut, and some of the metal debris will adhere to the surface of the steel pipe, and in order to facilitate taking and placing, the steel pipe is usually piled up and stored on the floor of the warehouse, which makes it easy for dust impurities to adhere to the surface of the steel pipe. Both the metal debris and the dust impurities will block the paint from being sprayed on the steel pipe, resulting in spots on the surface of the steel pipe after spraying. Therefore, during the spraying process of the spray ring 4 on the steel pipe, the cleaning roller 401 is driven to rotate by the spray ring 4, so that the metal debris and dust impurities adhering to the surface of the steel pipe are first cleaned off by the cleaning roller 401 to prevent the metal debris and dust impurities from affecting the spraying quality of the steel pipe.

[0050] Since a large amount of floating dust will be generated during the cleaning process of the cleaning roller 401, some of the dust will float toward the direction of the spray ring 4 and affect the spraying work of the steel pipe. Therefore, when the cleaning roller 401 is cleaning, an air pump connected to the suction groove 3002 is used to suck air into the suction groove 3002, and air is sucked to the left of the fixed ring 3 through the suction holes on the suction groove 3002, so that the dust generated by the cleaning roller 401 is sucked into the external impurity collection device, thereby preventing the dust from floating toward the direction of the spray ring 4 and affecting the spraying work of the steel pipe.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A spraying device for steel pipe processing, comprising a fixing plate (1) and a clamping assembly; two fixing plates (1) are provided; all fixing plates (1) are connected to a clamping assembly; characterized in that: The invention also comprises a guide rod (2), a fixing ring (3), a spraying ring (4), a support rod (5) and a driving assembly; a plurality of guide rods (2) are detachably connected between all the fixing plates (1), and all the guide rods (2) are detachably connected to each other; a plurality of support rods (5) are detachably connected to the guide rod (2), and a sliding groove is provided on the guide rod (2) and the support rod (5); all the guide rods (2) and the support rod (5) are slidably connected to the fixing ring (3), and the fixing ring (3) cooperates with the sliding grooves of the guide rods (2) and the support rods (5) through a protrusion, and the fixing ring (3) ) is provided with a connecting groove (3001), and the connecting groove (3001) is connected to an external paint conveying device through an air pipe; all the fixed plates (1) are connected to a driving assembly, and the driving assembly is connected to the fixed ring (3), and the fixed ring (3) is driven to move left and right through the driving assembly; the fixed ring (3) is rotatably connected to a spraying ring (4), and the spraying ring (4) is provided with a spraying groove (4001), and a plurality of nozzles are arranged in an annular manner at equal intervals on the spraying ring (4), and the nozzles are connected to the spraying groove (4001), and the spraying groove (4001) is connected to the connecting groove (3001); The clamping assembly comprises a bidirectional push rod (101), a clamping rod (102) and a rotating plate I (103); all the fixed plates (1) are fixedly connected to a plurality of bidirectional push rods (101); each telescopic end of all the bidirectional push rods (101) is fixedly connected to a clamping rod (102); all the clamping rods (102) are rotatably connected to a plurality of rotating plates I (103) via torsion springs; It also includes an arc-shaped support plate (201) and a rotating plate II (202); each of the two adjacent support rods (5) in the front and rear are slidably connected to a common arc-shaped support plate (201), the arc-shaped support plate (201) is arranged in an arc shape, and the arc-shaped support plate (201) is tangent to the two adjacent support rods (5); the arc-shaped support plate (201) is provided with a protrusion I (20101); the arc-shaped support plate (201) is provided with a protrusion II (20102); the support rods (5) located in the front are rotatably connected to a rotating plate II (202), and the arc-shaped support plate (201) and the adjacent rotating plate II (202) are connected in a damping sliding manner, and the rotating plate II (202) is provided with a limiting portion (20201), and the arc-shaped support plate (201) and the rotating plate II (202) are both arranged to be deformable materials.

2. A spraying equipment for steel pipe processing according to claim 1, characterized in that: It also includes an electric rotating rod I (203) and an electric rotating rod II (204); the fixed ring (3) is rotatably connected to an electric rotating rod I (203); the fixed ring (3) is rotatably connected to an electric rotating rod II (204); and the electric rotating rod I (203) and the electric rotating rod II (204) are both tangent to the arc-shaped support plate (201).

3. A spraying equipment for steel pipe processing according to claim 2, characterized in that: The outer surfaces of the electric rotating rod I (203) and the electric rotating rod II (204) are both made of rubber material.

4. A spraying equipment for steel pipe processing according to any one of claims 2-3, characterized in that: It also includes a driving push rod (301) and a pushing block (302); the arc-shaped support plate (201) is configured to be a deformable material; the support rods (5) located in the front are all fixedly connected to a driving push rod (301); the telescopic ends of all the driving push rods (301) are all fixedly connected to a pushing block (302), and the pushing block (302) is located below the adjacent rotating plate II (202).

5. A spraying equipment for steel pipe processing according to claim 4, characterized in that: The fixed plate (1) is provided with a telescopic rod (1001), and the telescopic rod (1001) is provided with an adjustment cylinder.

6. The spraying equipment for steel pipe processing according to claim 4, characterized in that: The spraying ring (4) is fixedly connected to a cleaning roller (401), and the cleaning roller (401) is located in front of the spraying ring (4).

7. A spraying equipment for steel pipe processing according to claim 6, characterized in that: The fixed ring (3) is provided with an air suction groove (3002), and the air suction groove (3002) is connected to an external air pump and impurity collection equipment through an air pipe, and a plurality of air suction holes are provided on the air suction groove (3002), and the air suction holes are located on the left side of the fixed ring (3).

8. The spraying equipment for steel pipe processing according to claim 7, characterized in that: It also includes a shielding film (402), and the fixing ring (3) is fixedly connected to the shielding film (402).

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