Enamel pipe outer surface enameling device for air pre-heater

Abstract

The invention discloses an enamel pipe outer surface enameling device for an air pre-heater, and relates to the technical field of enameling, the device comprises a mounting base, a spraying assembly and a positioning assembly, the lower surface of the mounting base is fixedly connected with a plurality of supporting columns, the lower surface of the mounting base is fixedly connected with two collecting boxes, the lower surfaces of the collecting boxes are provided with blow-off pipes, and the blow-off pipes are fixedly connected with the spraying assembly. Two symmetrical guide rails are arranged on the inner side wall of the mounting seat, a moving box is slidably connected to the inner side walls of the guide rails, a threaded rod is rotatably connected to the inner side walls of the guide rails through bearings, the threaded rod is in threaded connection with the moving box, and the threaded rod penetrates and extends out of the mounting seat. Compared with spraying inside the box body, the enameling device can spray more enamel pipes at a time, spraying materials on the surface of the moving box and in the collecting box can be cleaned manually and easily with water, and cleaning is fast and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of enameling, in particular to an outer surface enameling device for an enamel tube used in an air preheater. Background Art

[0002] Enamel tube is a kind of tube that is made by coating inorganic compound glaze on the surface of heat exchange tube and firing at high temperature to firmly combine metal and inorganic materials into one. Air preheater is a preheating equipment that improves the heat exchange performance of boiler and reduces heat loss. Enamel tube has good heat transfer performance, so it is often used in air preheater.

[0003] Most of the existing enamel tubes are placed in a box for enameling. On the one hand, the volume of the box is small and it is not possible to enamelled the enamel tubes in large quantities. On the other hand, the spraying material adheres to the inner wall of the box and is not easy to clean.

[0004] Based on this, a device for coating the outer surface of an enamel tube for an air preheater is now provided, which can eliminate the drawbacks of the existing device. Summary of the invention

[0005] The object of the present invention is to provide an outer surface enamel coating device for an air preheater enamel tube, so as to solve the shortcomings of the current product in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An enamel coating device for the outer surface of an enamel tube for an air preheater comprises a mounting seat, a spraying assembly, and a positioning assembly. A plurality of support columns are fixedly connected to the lower surface of the mounting seat. Two collecting boxes are fixedly connected to the lower surface of the mounting seat. A sewage pipe is arranged on the lower surface of the collecting box. Two symmetrical guide rails are provided on the inner side wall of the mounting seat. A moving box is slidably connected to the inner side wall of the guide rail. A threaded rod is rotatably connected to the inner side wall of the guide rail through a bearing. The threaded rod is threadedly connected to the moving box. The threaded rod extends through the mounting seat. A motor is fixedly connected to the outer side wall of the mounting seat through a bracket. The output end of the motor is connected to the threaded rod.

[0008] The positioning assembly is arranged on the upper surface of the moving box and is used to position and fix the porcelain tube;

[0009] The spraying assembly is arranged at the side wall of the mounting seat and is used for spraying the porcelain tube.

[0010] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0011] In an optional scheme: the positioning assembly includes a fixed column, an abutment plate, and a turntable. The movable box is rotatably connected to a plurality of rotating shafts through bearings. A turntable is fixedly connected to one end of the rotating shaft. A fixed column is fixedly connected to the upper surface of the turntable. Four abutment plate grooves opposite to each other are opened on the circumference of the fixed column. An abutment plate is slidably connected to the inner side wall of the abutment plate groove. The abutment plate is provided with a chamfer. A second spring is fixedly connected between the abutment plate and the inner side wall of the abutment plate groove.

[0012] In an optional solution: two symmetrical second racks are fixedly connected to the inner side wall of the mounting seat, and a second gear is fixedly connected to the rotating shaft, and the second gear is meshed with the second rack.

[0013] In an optional solution: two symmetrical protective plates are fixedly connected to the upper surface of the mounting seat.

[0014] In an optional scheme: the spraying assembly includes a lifting plate, a guide plate, and a concave guide rail. The outer side wall of the mounting seat is fixedly connected to two symmetrical concave guide rails, the side wall of the lifting plate is fixedly connected to two symmetrical guide plates, the guide plates are slidably connected to the concave guide rails, the side wall of the lifting plate is connected to a plurality of nozzles through bearings, the nozzles are rotatably connected to the feed pipe through a rotating drum, the outer side wall of the mounting seat is fixedly connected to four fixed plates that are symmetrical in pairs, a rotating rod is connected between two adjacent fixed plates through bearings, the rotating rod is fixedly connected to a plurality of cams, the threaded rod and the rotating rod are transmission-connected by a synchronous belt drive, the cam abuts against the lifting plate, and a first spring is fixedly connected between the guide plate and the concave guide rail.

[0015] In an optional solution: a plurality of racks are fixedly connected to the side wall of the concave guide rail, the nozzles correspond to the racks one by one, the nozzles are fixedly connected to a first gear, and the first gear is meshed with the racks.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Compared with spraying inside the box, the enameling device of the present invention can spray more enameled tubes at one time, and the sprayed materials on the surface of the moving box and inside the collecting box can be easily cleaned with water manually, which is quick and convenient.

[0018] 2. In the present invention, while the threaded rod rotates, the synchronous belt driving member drives the rotating rod to rotate, and the rotation of the rotating rod drives a plurality of cams to rotate. The cams abut against the lifting plate, and the cams rotate, driving the first gear to reciprocate up and down. The first gear drives the nozzle to spray the porcelain tube up and down, so that the material is sprayed on the surface of the porcelain tube more evenly, thereby improving the spraying effect.

[0019] 3. The present invention drives the first gear to reciprocate up and down while the lifting plate reciprocates up and down. The first gear cooperates with the rack while reciprocating up and down to rotate the nozzle. The material sprayed by the rotating nozzle is evenly sprayed on the surface of the porcelain tube, further improving the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 This is a first viewing angle diagram of the present invention.

[0022] Figure 3 It is a partial cross-sectional view of the present invention.

[0023] Figure 4 It is a schematic diagram of the concave guide rail structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the cam structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the positioning component of the present invention.

[0026] Figure 7 It is a schematic diagram of the internal structure of the fixing column of the present invention.

[0027] Notes on figure numbers: 1 mounting base, 2 collecting box, 3 motor, 4 spraying assembly, 5 positioning assembly, 6 moving box, 7 lifting plate, 8 nozzle, 9 threaded rod, 10 rotating rod, 11 synchronous belt drive, 12 cam, 13 fixed plate, 14 guide plate, 15 concave guide rail, 16 first spring, 17 first gear, 18 rack, 19 feed pipe, 20 fixed column, 21 second gear, 22 second rack, 23 protective plate, 24 abutment plate, 25 turntable, 26 rotating shaft, 27 second spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] In one embodiment, Figure 1-Figure 7As shown, an enamel coating device for the outer surface of an enamel tube for an air preheater comprises a mounting seat 1, a spraying assembly 4, and a positioning assembly 5. A plurality of support columns are fixedly connected to the lower surface of the mounting seat 1. Two collecting boxes 2 are fixedly connected to the lower surface of the mounting seat 1. A sewage pipe is arranged on the lower surface of the collecting box 2. Two symmetrical guide rails are provided on the inner side wall of the mounting seat 1. A moving box 6 is slidably connected to the inner side wall of the guide rail. A threaded rod 9 is rotatably connected to the inner side wall of the guide rail through a bearing. The threaded rod 9 is threadedly connected to the moving box 6. The threaded rod 9 extends through the mounting seat 1. A motor 3 is fixedly connected to the outer side wall of the mounting seat 1 through a bracket. The output end of the motor 3 is connected to the threaded rod 9.

[0030] The positioning assembly 5 is arranged on the upper surface of the moving box 6 and is used to position and fix the porcelain tube;

[0031] The spraying assembly 4 is arranged at the side wall of the mounting seat 1 and is used for spraying the porcelain tube.

[0032] Start the two motors 3, the two motors 3 drive the two threaded rods 9 to rotate, and the two threaded rods 9 drive the moving box 6 to move, so as to transport the porcelain tubes placed on the fixed column 20 to the position of the spraying assembly 4;

[0033] The surface of the mobile box 6 and the sprayed materials inside the collecting box 2 are cleaned manually with water, and the sewage is discharged from the sewage outlet at the bottom of the collecting box 2, and the cleaning can be completed. The cleaning is quick and convenient;

[0034] Compared with spraying inside the box, the enameling device can spray more enameled tubes at one time.

[0035] In one embodiment, the positioning assembly 5 includes a fixed column 20, an abutment plate 24, and a turntable 25. The movable box 6 is rotatably connected to a plurality of rotating shafts 26 through bearings. The turntable 25 is fixedly connected to one end of the rotating shaft 26. The upper surface of the turntable 25 is fixedly connected to the fixed column 20. Four abutment plate grooves opposing each other are opened on the circumference of the fixed column 20. The inner side walls of the abutment plate grooves are slidably connected to the abutment plates 24. The abutment plates 24 are provided with chamfers. A second spring 27 is fixedly connected between the abutment plate 24 and the inner side walls of the abutment plate grooves.

[0036] A batch of multiple spray-coated porcelain tubes are sleeved on the fixing column 20, and the abutment plate 24 and the second spring 27 cooperate to abut against the inner wall of the porcelain tube, so that the porcelain tube is quickly fixed, and the fixing operation is quick and convenient.

[0037] In one embodiment, two symmetrical second racks 22 are fixedly connected to the inner wall of the mounting base 1 , and the second gear 21 is fixedly connected to the rotating shaft 26 , and the second gear 21 is meshed with the second rack 22 .

[0038] During the movement of the moving box 6, the second gear 21 cooperates with the second rack 22 to drive the rotating shaft 26 to rotate, the rotating shaft 26 rotates to drive the turntable 25 to rotate, the turntable 25 drives the fixed column 20 to rotate, and the fixed column 20 drives the porcelain tube to rotate, so that the surrounding side of the porcelain tube can be evenly sprayed with the material.

[0039] In one embodiment, two symmetrical protection plates 23 are fixedly connected to the upper surface of the mounting base 1 .

[0040] The protection plate 23 prevents the material from being sprayed onto the second rack 22 .

[0041] In one embodiment, the spraying assembly 4 includes a lifting plate 7, a guide plate 14, and a concave guide rail 15. The outer side wall of the mounting seat 1 is fixedly connected with two symmetrical concave guide rails 15. The side wall of the lifting plate 7 is fixedly connected with two symmetrical guide plates 14. The guide plate 14 and the concave guide rail 15 are slidably connected. The side wall of the lifting plate 7 is connected with a plurality of nozzles 8 through a bearing. The nozzles 8 are rotatably connected to the feed pipe 19 through a rotating drum. The outer side wall of the mounting seat 1 is fixedly connected with four fixed plates 13 that are symmetrical in pairs. A rotating rod 10 is connected between two adjacent fixed plates 13 through a bearing. The rotating rod 10 is fixedly connected with a plurality of cams 12. The threaded rod 9 and the rotating rod 10 are connected through a synchronous belt drive 11. The cam 12 abuts against the lifting plate 7. A first spring 16 is fixedly connected between the guide plate 14 and the concave guide rail 15.

[0042] When the threaded rod 9 rotates, the rotating rod 10 is driven to rotate through the synchronous belt driving part 11. The rotation of the rotating rod 10 drives several cams 12 to rotate. The cams 12 abut against the lifting plate 7. The cams 12 rotate, driving the first gear 17 to reciprocate up and down. The first gear 17 drives the nozzle 8 to spray the porcelain tube up and down, so that the material is sprayed on the surface of the porcelain tube more evenly, thereby improving the spraying effect.

[0043] In one embodiment, a plurality of racks 18 are fixedly connected to the side wall of the concave guide rail 15 , and the nozzles 8 correspond to the racks 18 one by one. The nozzles 8 are fixedly connected to the first gear 17 , and the first gear 17 meshes with the racks 18 .

[0044] When the lifting plate 7 reciprocates up and down, it drives the first gear 17 to reciprocate up and down. When the first gear 17 reciprocates up and down, it cooperates with the rack 18 to rotate the nozzle 8. The material sprayed by the rotating nozzle 8 is evenly sprayed on the surface of the porcelain tube, further improving the spraying effect.

[0045] The above embodiment discloses a device for coating the outer surface of an enamel tube for an air preheater, and its specific working principle and process are as follows:

[0046] S1: First, a batch of multiple spray-coated porcelain tubes are placed on the fixing column 20, and the abutment plate 24 and the second spring 27 are used to abut against the inner wall of the porcelain tube, so as to quickly fix the porcelain tube. The fixing operation is quick and convenient.

[0047] S2: Start the two motors 3, the two motors 3 drive the two threaded rods 9 to rotate, and the two threaded rods 9 drive the moving box 6 to move, so as to transport the porcelain tubes placed on the fixed column 20 to the position of the spraying assembly 4;

[0048] S3: The spraying material is transported from the threaded rod 9 to the nozzle 8 by a pump, and then sprayed out from the nozzle 8;

[0049] S4: During the movement of the moving box 6, the second gear 21 cooperates with the second rack 22 to drive the rotating shaft 26 to rotate, the rotating shaft 26 drives the rotating disk 25 to rotate, the rotating disk 25 drives the fixed column 20 to rotate, and the fixed column 20 drives the porcelain tube to rotate, so that the surrounding side of the porcelain tube can be evenly sprayed with materials;

[0050] S5: When the threaded rod 9 rotates, the rotating rod 10 is driven to rotate through the synchronous belt driving member 11. The rotating rod 10 rotates to drive a plurality of cams 12 to rotate. The cams 12 abut against the lifting plate 7. The cams 12 rotate, driving the first gear 17 to reciprocate up and down. The first gear 17 drives the nozzle 8 to spray the porcelain tube up and down, so that the material is sprayed on the surface of the porcelain tube more evenly, thereby improving the spraying effect.

[0051] S6: When the lifting plate 7 reciprocates up and down, it drives the first gear 17 to reciprocate up and down. When the first gear 17 reciprocates up and down, it cooperates with the rack 18 to make the nozzle 8 rotate. The material sprayed by the rotating nozzle 8 is evenly sprayed on the surface of the porcelain tube, further improving the spraying effect;

[0052] The surface of the mobile box 6 and the sprayed material inside the collecting box 2 can be cleaned manually with water, and the sewage is discharged from the sewage outlet at the bottom of the collecting box 2, so that the cleaning can be completed, and the cleaning is quick and convenient.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An enamel coating device for the outer surface of an enamel tube for an air preheater, characterized in that: The invention comprises a mounting seat (1), a spraying assembly (4), and a positioning assembly (5); a plurality of support columns are fixedly connected to the lower surface of the mounting seat (1); two collecting boxes (2) are fixedly connected to the lower surface of the mounting seat (1); a sewage discharge pipe is arranged on the lower surface of the collecting box (2); two symmetrical guide rails are arranged on the inner side wall of the mounting seat (1); a moving box (6) is slidably connected to the inner side wall of the guide rail; a threaded rod (9) is rotatably connected to the inner side wall of the guide rail through a bearing; the threaded rod (9) is threadedly connected to the moving box (6); the threaded rod (9) extends through the mounting seat (1); a motor (3) is fixedly connected to the outer side wall of the mounting seat (1) through a bracket; and an output end of the motor (3) is connected to the threaded rod (9); The positioning assembly (5) is arranged on the upper surface of the moving box (6) and is used to position and fix the porcelain tube; The spraying assembly (4) is arranged on the side wall of the mounting seat (1) and is used for spraying the porcelain tube.

2. The device for coating the outer surface of an enamel tube for an air preheater according to claim 1, characterized in that: The positioning assembly (5) comprises a fixed column (20), an abutment plate (24), and a turntable (25); the moving box (6) is rotatably connected to a plurality of rotating shafts (26) through bearings; one end of the rotating shaft (26) is fixedly connected to the turntable (25); the upper surface of the turntable (25) is fixedly connected to the fixed column (20); four abutment plate grooves facing each other are provided on the circumference of the fixed column (20); the inner side wall of the abutment plate groove is slidably connected to the abutment plate (24); the abutment plate (24) is provided with a chamfer; a second spring (27) is fixedly connected between the abutment plate (24) and the inner side wall of the abutment plate groove.

3. The device for coating the outer surface of an enamel tube for an air preheater according to claim 2, characterized in that: Two symmetrical second racks (22) are fixedly connected to the inner side wall of the mounting seat (1), and the rotating shaft (26) is fixedly connected to a second gear (21), and the second gear (21) is meshed with the second rack (22).

4. The device for coating the outer surface of an enamel tube for an air preheater according to claim 1, characterized in that: Two symmetrical protection plates (23) are fixedly connected to the upper surface of the mounting seat (1).

5. The device for coating the outer surface of an enamel tube for an air preheater according to claim 1, characterized in that: The spraying assembly (4) comprises a lifting plate (7), a guide plate (14), and a concave guide rail (15); the outer side wall of the mounting seat (1) is fixedly connected to two symmetrical concave guide rails (15); the side wall of the lifting plate (7) is fixedly connected to two symmetrical guide plates (14); the guide plates (14) and the concave guide rails (15) are connected in a sliding manner; the side wall of the lifting plate (7) is connected to a plurality of nozzles (8) via bearings; the nozzles (8) are rotatably connected to a feed pipe (19) via a rotating drum; The outer wall of the mounting seat (1) is fixedly connected with four symmetrical fixed plates (13), two adjacent fixed plates (13) are connected with a rotating rod (10) via a bearing, the rotating rod (10) is fixedly connected with a plurality of cams (12), the threaded rod (9) and the rotating rod (10) are connected by a synchronous belt drive member (11), the cam (12) abuts against the lifting plate (7), and a first spring (16) is fixedly connected between the guide plate (14) and the concave guide rail (15).

6. The device for coating the outer surface of an enamel tube for an air preheater according to claim 5, characterized in that: A plurality of racks (18) are fixedly connected to the side wall of the concave guide rail (15), the nozzles (8) correspond to the racks (18) one by one, the nozzles (8) are fixedly connected to a first gear (17), and the first gear (17) meshes with the racks (18).

Images