Uniform spraying structure for surface coating of nodular iron casting

Abstract

The utility model discloses a uniform spraying structure for coating the surface of a nodular iron casting, relates to the technical field of spraying devices, and aims to solve the problem that leakage points occur during spraying when convex parts appear on the surface of the casting. The uniform spraying structure for coating the surface of the nodular iron casting is provided with a spiral track, a driving rotating rod, a first sliding rod, a circulating block, a clearing piece and a scraping piece, and when the surface is sprayed, a spraying nozzle circularly rotates along the spiral track; the surface of the spheroidal graphite cast pipe is covered during rotation, spraying is more uniform through a continuous progressive forward movement mode, in addition, rotation of the driving rotating rod further drives a scraping piece to rotate, the surface of the spheroidal graphite cast pipe is treated in advance through rotation of the scraping piece, impurities on the surface of the spheroidal graphite cast pipe are treated, and the spraying quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, in particular to a uniform spraying structure for surface coating of ductile iron parts. Background Art

[0002] Ductile iron is a cast iron material with a spheroidal graphite microstructure, also commonly known as ductile iron or ductile iron castings. It has better mechanical properties than ordinary gray cast iron, including higher toughness, strength and impact value. Ductile iron castings are usually used to manufacture parts that need to withstand large loads and impact loads, such as automobile engine blocks, mechanical parts, pipe fittings, etc.

[0003] In contrast, the patent document with publication number CN210787832U discloses a spraying device for ductile iron parts with good spraying effect, including a base plate, a box body is fixedly connected to the left side of the top of the base plate, a liquid inlet pipe is connected to the right side of the top of the box body, a motor box is fixedly connected to the left side of the top of the motor box inner cavity, a motor is fixedly connected to the left side, a driving gear is fixedly connected to the output end of the motor, and a driven gear is meshed with the surface of the driving gear. The utility model achieves the advantage of good spraying effect by arranging the bottom plate, the box body, the liquid inlet pipe, the motor box, the motor, the driving gear, the driven gear, the rotating shaft, the stirring device, the liquid suction pipe, the liquid suction pump, the liquid outlet pipe, the spray box, the horizontal pipe, the first nozzle, the vertical pipe, the second nozzle, the base, the anti-skid pad and the bearing seat, which cooperate with each other, solves the problem of poor spraying effect of the existing spraying device for ductile iron parts, and improves the practicality of the spraying device for ductile iron parts. However, the factors leading to the poor spraying effect also include the defects of the casting itself. When a raised part appears on the surface of the casting, leakage points will appear in the spraying. In the above-mentioned setting, this kind of problem is not solved. Therefore, a uniform spraying structure for surface coating of ductile iron parts is urgently needed to solve the above-mentioned problem.

[0004] In view of the above problems, a uniform spraying structure for surface coating of ductile iron castings is proposed. Utility Model Content

[0005] The utility model aims to provide a uniform spraying structure for coating the surface of ductile iron castings, which solves the problem in the background technology that the surface of ductile iron castings is defective and cannot be uniformly sprayed.

[0006] To achieve the above object, the utility model provides the following technical solution: a uniform spraying structure for coating the surface of ductile iron castings, comprising a support frame, the top end of which is connected to a mounting column, and the outer side of which is fixedly connected to a driving motor;

[0007] The output end of the driving motor is connected to a coating assembly, and the coating assembly includes an active rotating rod, the output end of the driving motor is connected to the active rotating rod, one end of the active rotating rod is connected to a first sliding rod, and the other end of the active rotating rod is connected to a second sliding rod, the outer surface of the second sliding rod is connected to a circulation block, the inner side of the circulation block is connected to a cleaning sheet, the outer surface of the cleaning sheet is connected to a scraping sheet, and the interior of the cleaning sheet is also embedded with a guide groove;

[0008] The outer surface of the first slide bar is sleeved with a spray nozzle, the spray nozzle is connected to the ink tank through an ink tube, the surface of the mounting column is connected with a spiral track, and the spray nozzle and the spray nozzle are sleeved on the outer surface of the spiral track;

[0009] A fixing component is installed on the upper surface of the support frame, and the fixing component includes a mounting frame, a positioning ring is connected to the top of the mounting frame, a clamp is fixedly connected to one side of the positioning ring, an outer ring is also fixedly connected to the top of the mounting frame, a connecting rod is connected to the top of the outer ring, a sliding column is also fixedly connected to the outer side of the outer ring, the sliding column is embedded in the interior of the connecting groove, and a movable clamp is connected to the bottom end of the connecting groove.

[0010] Preferably, the inner side of the clamp and the movable clamp holds a ductile iron pipe, the ductile iron pipe is embedded in the interior of the spiral track, and the ductile iron pipe is embedded in the center of the spiral track.

[0011] Preferably, the circulation blocks and spray nozzles arranged at the left and right ends of the spiral track remain parallel, the distance between the circulation block and the mounting column is smaller than the distance from the spray nozzle to the mounting column, and the circulation block and the spray nozzle are staggered on the spiral track.

[0012] Preferably, the first slide bar is slidably connected to the spray nozzle, the circulation block is slidably connected to the second slide bar, and the second slide bar and the first slide bar are kept parallel.

[0013] Preferably, a through groove is provided on the inner wall of the cleaning piece, a guide groove is embedded in the through groove, the guide groove is embedded in the through groove obliquely downward, and the other end of the guide groove is attached to the outer surface of the ductile iron pipe.

[0014] Preferably, the chuck and the movable clamp are surrounded on a positioning ring, and six groups of the chuck and the movable clamp are arranged on the positioning ring. The chuck and the movable clamp cooperate with each other to clamp the ductile iron pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a uniform spraying structure for surface coating of ductile iron parts. The structure is provided with a spiral track, an active rotating rod, a first sliding rod, a circulation block, a cleaning sheet and a scraping sheet. When spraying the surface, the spray nozzle rotates cyclically along the spiral track, and the surface of the ductile iron pipe is covered during the rotation. The spraying is made more uniform by continuously moving forward in a progressive manner. In addition, the rotation of the active rotating rod also drives the rotation of the scraping sheet. The surface of the ductile iron pipe is pre-treated by the rotation of the scraping sheet to treat impurities on the surface of the ductile iron pipe and improve the quality of the spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the circulation block and the scraper blade of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the positioning ring and the movable clamp of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the outer ring and the connecting groove of the utility model.

[0021] In the figure: 11, support frame; 12, mounting column; 13, drive motor; 14, ductile iron pipe; 2, coating assembly; 21, spiral track; 22, active rotating rod; 23, first slide bar; 24, circulation block; 25, cleaning piece; 26, second slide bar; 27, spray nozzle; 28, scraping piece; 29, guide groove; 3, fixing assembly; 31, mounting frame; 32, positioning ring; 33, chuck; 34, movable clamp; 35, outer ring; 36, connecting rod; 37, sliding column; 38, connecting groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0024] Combination Figure 1-Figure 4The utility model discloses a uniform spraying structure for coating the surface of a ductile iron casting, comprising a support frame 11, a mounting column 12 is connected to the top of the support frame 11, a driving motor 13 is fixedly connected to the outer side of the mounting column 12, a ductile iron pipe 14 is clamped inside a clamp 33 and a movable clamp 34, and the ductile iron pipe 14 is embedded in a spiral track 21, and the ductile iron pipe 14 is embedded in the center of the spiral track 21;

[0025] When spraying the surface of ductile iron parts, the position of the ductile iron pipe 14 must be fixed first. By fixing the ductile iron pipe 14 in a suspended state, it is convenient to spray the surface. The ductile iron pipe 14 is fixed by the fixing component 3. The specific operation is as follows:

[0026] A fixing assembly 3 is installed on the upper surface of the support frame 11. The fixing assembly 3 includes a mounting frame 31. A positioning ring 32 is connected to the top of the mounting frame 31. A clamp 33 is fixedly connected to one side of the positioning ring 32. An outer ring 35 is also fixedly connected to the top of the mounting frame 31. A connecting rod 36 is connected to the top of the outer ring 35. A sliding column 37 is also fixedly connected to the outer side of the outer ring 35. The sliding column 37 is embedded in the interior of the connecting groove 38. A movable clamp 34 is connected to the bottom end of the connecting groove 38. The clamp 33 and the movable clamp 34 surround the positioning ring 32. Six groups of clamps 33 and movable clamps 34 are arranged on the positioning ring 32. The clamp 33 and the movable clamp 34 cooperate with each other to clamp the ductile iron pipe 14.

[0027] When clamping the ductile iron pipe 14, the ductile iron pipe 14 is embedded between the clamp 33 and the movable clamp 34, and the ductile iron pipe 14 is clamped by the mutual approach between the clamp 33 and the movable clamp 34. The clamping of the ductile iron pipe 14 is achieved by controlling the height of the movable clamp 34. When adjusting the movable clamp 34, the connecting rod 36 is rotated, wherein the connecting rod 36 passes through the interior of the connecting groove 38 and maintains a rotational connection. When the connecting rod 36 is rotated, the depth of the connecting rod 36 embedded in the outer ring 35 changes. When the connecting rod 36 is embedded in the interior of the outer ring 35, the connecting rod 36 is lowered, and the lowering of the connecting rod 36 drives the lowering of the connecting groove 38, thereby achieving the lowering of the movable clamp 34. The clamping of the movable clamp 34 at six points makes the clamping more stable, and after clamping, the center point of the ductile iron pipe 14 is kept consistent with the center point of the spiral track 21, so that the distance between the ductile iron pipe 14 and the spiral track 21 is more uniform, and more uniform in the later spraying.

[0028] The output end of the driving motor 13 is connected to the coating component 2, and the coating component 2 includes an active rotating rod 22, the output end of the driving motor 13 is connected to the active rotating rod 22, one end of the active rotating rod 22 is connected to the first sliding rod 23, and the other end of the active rotating rod 22 is connected to the second sliding rod 26, and the outer surface of the second sliding rod 26 is connected to the circulation block 24, the circulation blocks 24 and the spray nozzle 27 arranged at the left and right ends of the spiral track 21 are kept parallel, the distance between the circulation block 24 and the mounting column 12 is smaller than the distance from the spray nozzle 27 to the mounting column 12, the circulation block 24 and the spray nozzle 27 are staggered on the spiral track 21, the inner side of the circulation block 24 is connected to the cleaning sheet 25, and the outer surface of the cleaning sheet 25 is connected to the scraper The cleaning piece 28 is provided with a guide groove 29 embedded inside the cleaning piece 25. A through groove is provided on the inner wall of the cleaning piece 25. The guide groove 29 is embedded inside the through groove. The guide groove 29 is tilted downward and embedded inside the through groove. The other end of the guide groove 29 is attached to the outer surface of the ductile iron pipe 14. The outer surface of the first slide bar 23 is sleeved with a spray nozzle 27. The first slide bar 23 and the spray nozzle 27 are slidably connected. The circulation block 24 and the second slide bar 26 are also slidably connected. The second slide bar 26 and the first slide bar 23 are kept parallel. The spray nozzle 27 is connected to the ink tank through an ink tube. The surface of the mounting column 12 is connected with a spiral track 21. The spray nozzle 27 and the spray nozzle 27 are sleeved on the outer surface of the spiral track 21.

[0029] During the spraying of the surface of the ductile iron pipe 14, the active rotating rod 22 is driven to rotate by the driving motor 13. When the active rotating rod 22 rotates, the first slide bar 23 and the second slide bar 26 are driven to rotate. When the first slide bar 23 and the second slide bar 26 rotate together, the spray nozzle 27 and the circulation block 24 are driven to rotate. Since the spray nozzle 27 and the first slide bar 23 are in a sliding connection relationship, the circulation block 24 and the second slide bar 26 are also in a sliding connection relationship. When the second slide bar 26 and the first slide bar 23 rotate, the circulation block 24 and the spray nozzle 27 are driven to rotate. During this period, the spray nozzle 27 and the circulation block 24 will move along the trajectory of the spiral track 21. At this time The circulation block 24 and the spray nozzle 27 continuously advance forward while rotating. During the advancement, the cleaning piece 25 and the scraping piece 28 on the circulation block 24 contact the surface of the ductile iron pipe 14 to remove the particles and impurities on the surface. The particles and impurities removed by friction are discharged along the discharge groove 29. After cleaning, the spray nozzle 27 sprays the surface of the ductile iron pipe 14. Since the spray nozzle 27 moves around the ductile iron pipe 14, it sprays the outer surface of the ductile iron pipe 14 around the ductile iron pipe 14. During the circling process, the spray nozzle 27 continuously advances until the spray nozzle 27 moves to the end of the spiral track 21 close to the mounting column 12. At this time, the spraying of the entire ductile iron pipe 14 is completed.

[0030] During the entire spraying process, since the circulation block 24 is located in front of the spray nozzle 27 (close to the spiral track 21), the scraper 28 on the circulation block 24 cleans the waste and then sprays it through the spray nozzle 27, so the overall spraying effect is better and the thickness of the spray coating is more uniform.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform spraying structure for coating the surface of a ductile iron casting, comprising a support frame (11), characterized in that: The top end of the support frame (11) is connected to a mounting column (12), and the outer side of the mounting column (12) is fixedly connected to a driving motor (13); The output end of the driving motor (13) is connected to a coating assembly (2), and the coating assembly (2) comprises an active rotating rod (22), the output end of the driving motor (13) is connected to the active rotating rod (22), one end of the active rotating rod (22) is connected to a first sliding rod (23), the other end of the active rotating rod (22) is connected to a second sliding rod (26), the outer surface of the second sliding rod (26) is connected to a circulation block (24), the inner side of the circulation block (24) is connected to a cleaning sheet (25), the outer surface of the cleaning sheet (25) is connected to a scraping sheet (28), and the interior of the cleaning sheet (25) is also embedded with a guide groove (29); The outer surface of the first sliding rod (23) is sleeved with a spray nozzle (27), the spray nozzle (27) is connected to the ink tank through an ink tube, the surface of the mounting column (12) is connected with a spiral track (21), and the spray nozzle (27) and the spray nozzle (27) are both sleeved on the outer surface of the spiral track (21); A fixing assembly (3) is installed on the upper surface of the support frame (11), and the fixing assembly (3) includes a mounting frame (31), the top end of the mounting frame (31) is connected to a positioning ring (32), a side surface of the positioning ring (32) is fixedly connected to a clamp (33), the top end of the mounting frame (31) is also fixedly connected to an outer ring (35), the top end of the outer ring (35) is connected to a connecting rod (36), and the outer side surface of the outer ring (35) is also fixedly connected to a sliding column (37), the sliding column (37) is embedded in the interior of a connecting groove (38), and the bottom end of the connecting groove (38) is connected to a movable clamp (34).

2. The uniform spraying structure for coating the surface of ductile iron castings according to claim 1, characterized in that: The inner sides of the clamp (33) and the movable clamp (34) hold a ductile iron pipe (14), and the ductile iron pipe (14) is embedded in the interior of the spiral track (21), and the ductile iron pipe (14) is embedded in the center position of the spiral track (21).

3. A uniform spraying structure for coating the surface of ductile iron castings according to claim 2, characterized in that: The circulation blocks (24) and the spray nozzles (27) arranged at the left and right ends of the spiral track (21) are kept parallel, the distance between the circulation block (24) and the mounting column (12) is smaller than the distance between the spray nozzles (27) and the mounting column (12), and the circulation block (24) and the spray nozzles (27) are staggeredly arranged on the spiral track (21).

4. The uniform spraying structure for coating the surface of ductile iron castings according to claim 1, characterized in that: The first slide bar (23) and the spray nozzle (27) are slidably connected, the circulation block (24) and the second slide bar (26) are also slidably connected, and the second slide bar (26) and the first slide bar (23) are kept parallel.

5. The uniform spraying structure for coating the surface of ductile iron castings according to claim 1, characterized in that: A through groove is formed on the inner wall of the cleaning sheet (25), and a guide groove (29) is embedded in the through groove. The guide groove (29) is embedded in the through groove at an angle downward, and the other end of the guide groove (29) is attached to the outer surface of the ductile iron pipe (14).

6. A uniform spraying structure for coating the surface of ductile iron castings according to claim 1, characterized in that: The clamp (33) and the movable clamp (34) are surrounded on the positioning ring (32). Six groups of the clamp (33) and the movable clamp (34) are arranged on the positioning ring (32). The clamp (33) and the movable clamp (34) cooperate with each other to clamp the ductile iron pipe (14).

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