A stainless steel tube corrosion-resistant coating spraying device
By using clamping components and a motor-driven steel pipe to move and rotate, the number of fixed inner and outer spray heads is reduced, solving the problems of high cost and difficult maintenance of long steel pipe spraying, and achieving efficient and low-cost inner and outer wall spraying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOFENG STEEL GRP
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-07
AI Technical Summary
Existing stainless steel pipe spraying equipment is costly and difficult to maintain when spraying long steel pipes, and individual nozzle malfunctions affect the spraying quality.
The steel pipe is clamped by a first clamping assembly and a second clamping assembly, and the steel pipe is moved and rotated horizontally by a motor. The number of inner and outer spray heads is relatively small, and the inner and outer walls are sprayed simultaneously. It is suitable for long steel pipes.
It reduces equipment costs, improves coating quality, is easy to maintain, and is suitable for long stainless steel pipes.
Smart Images
Figure CN224463003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stainless steel pipe processing equipment, and in particular to a stainless steel pipe corrosion-resistant coating spraying device. Background Technology
[0002] In the production of stainless steel pipes, in order to improve the performance of stainless steel pipes and meet the requirements for corrosion resistance, it is necessary to spray corrosion-resistant coatings on the outer and inner walls of the stainless steel pipes to form a corrosion-resistant layer. For example, the utility model patent: a stainless steel pipe anti-corrosion coating applicator (publication number: CN222931079U) discloses a structure that can complete the coating work on the inner and outer surfaces of the steel pipe in one process. However, in the above structure, since a large number of inner and outer nozzles are required to ensure that the spraying area can fully cover the steel pipe, the equipment cost required for spraying operations when applied to long steel pipes is high. Moreover, among the numerous inner and outer nozzles, the failure of individual nozzles will affect the quality of the spraying, resulting in high maintenance costs during equipment use.
[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content
[0004] This invention proposes a stainless steel pipe corrosion-resistant coating spraying device, which solves the above-mentioned problems existing in the use of the prior art.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A stainless steel pipe corrosion-resistant coating spraying device includes a base, a first clamping seat that can slide horizontally and is drivenly connected to a first motor mounted on the base, a first clamping assembly that is rotatably mounted on the first clamping seat and drivenly connected to a second motor mounted on the first clamping seat, a second clamping seat that can slide horizontally and is opposite to the first clamping seat, a second clamping assembly that is rotatably mounted on the second clamping seat and is opposite to the first clamping assembly, a horizontal inner spray pipe that is fixedly mounted on the base, an inner nozzle with a lateral nozzle at its end, and an outer spray pipe that is fixedly mounted on the base above the sliding path of the first and second clamping seats, the outer spray pipe having a plurality of nozzles facing the inner nozzle.
[0007] Preferably, two horizontal sliding rods are provided below the base. The first and second clamping seats are respectively fixedly connected to a first sliding foot and a second sliding foot that slidably pass through the sliding groove opened on the base and are mounted on the sliding rods. A transmission seat is fixedly connected to the first sliding foot. A transmission screw that is screwed to the transmission seat and connected to the first motor is rotatably provided below the base.
[0008] Preferably, the first clamping assembly includes a first rotating ring, a first fixed half-hoop, and a first movable half-hoop. The first rotating ring is rotatably sleeved on a first support ring formed on a first clamping seat. The first fixed half-hoop is fixedly connected to the end of the first support ring. The first movable half-hoop is hinged to the first fixed half-hoop. The free end of the first movable half-hoop is fastened to the first fixed half-hoop by bolts. The first clamping seat has a first through hole communicating with the first support ring. The first rotating ring is connected to the second motor through the cooperation of a synchronous pulley and a synchronous belt.
[0009] Preferably, the second clamping assembly includes a second rotating ring, a second fixed half-hoop, and a second movable half-hoop. The second rotating ring is rotatably sleeved on a second support ring formed on the second clamping seat. The second fixed half-hoop is fixedly connected to the end of the second support ring. The second movable half-hoop is hinged to the second fixed half-hoop. The free end of the second movable half-hoop is fastened to the second fixed half-hoop by a bolt. The second clamping seat has a second through hole communicating with the second support ring.
[0010] Preferably, the end of the inner nozzle is fixedly connected to a support sleeve surrounding the inner nozzle, the support sleeve has a spraying window opposite to the nozzle of the inner nozzle, the end of the support sleeve is provided with a plurality of annular array support rods, and the end of the support rods is provided with bullseye wheels.
[0011] Preferably, the end of the support sleeve is provided with a plurality of hinge grooves, and a plurality of the support rods are hinged one by one in the plurality of hinge grooves. The end of the support sleeve is screwed with a limiting cover plate that presses the support rod tightly against the hinge groove to restrict the swing of the support rod.
[0012] Preferably, the support sleeve is screwed to the end of the inner spray pipe, the inner nozzle is screwed to the end of the inner spray pipe, and a material conveying hose connected to the inner nozzle is inserted inside the inner spray pipe.
[0013] In summary, the beneficial effects of this utility model are as follows: the steel pipe is clamped and fixed between the first clamping seat and the second clamping seat by the first clamping assembly and the second clamping assembly; the first clamping seat is driven by the first motor to move the steel pipe horizontally towards the inner spray pipe and the outer spray pipe; the first clamping assembly is driven by the second motor to rotate, thereby rotating the steel pipe; the inner spray head inserted into the steel pipe and the outer spray head located above the moving path of the steel pipe simultaneously spray the anti-corrosion coating on the inner and outer walls of the steel pipe. Since the inner and outer spray heads remain fixed and are few in number during the spraying operation, this spraying device is more suitable for spraying long steel pipes, and the equipment cost is lower and it is easier to maintain. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a structural schematic diagram of the present invention at another time.
[0017] Figure 3 This is a schematic diagram of the structure of the first clamping seat and the first clamping assembly in this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the second clamping seat and the second clamping assembly in this utility model;
[0019] Figure 5 for Figure 1 Enlarged view of point A in the middle;
[0020] Figure 6 This is a schematic diagram of the structure of the inner nozzle, inner spray head, support sleeve, and support rod in this utility model.
[0021] In the diagram: 1. Base; 11. Sliding rod; 12. Transmission screw; 13. Sliding groove; 2. First motor; 3. First clamping seat; 31. First sliding foot; 32. Transmission seat; 33. First support ring; 34. First through hole; 35. Second motor; 4. First clamping assembly; 41. First rotating ring; 42. First fixed half hoop; 43. First movable half hoop; 5. Second clamping seat; 51. Second sliding foot; 52. Second support ring; 53. Second through hole; 6. Second clamping assembly; 61. Second rotating ring; 62. Second fixed half hoop; 63. Second movable half hoop; 7. Inner spray pipe; 71. Inner nozzle; 72. Support sleeve; 721. Spraying window; 722. Hinge groove; 73. Support rod; 74. Bullseye wheel; 75. Limiting cover plate; 76. Material conveying hose; 8. Outer spray pipe; 81. Outer nozzle. Detailed Implementation
[0022] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] As shown in the figure, a stainless steel pipe corrosion-resistant coating spraying device includes a base 1. A first clamping seat 3, which can slide horizontally and is driven by a first motor 2 mounted on the base 1, is provided on the base 1. A first clamping assembly 4, which is driven by a second motor 35 mounted on the first clamping seat 3, is rotatably mounted on the first clamping seat 3. A second clamping seat 5, which can slide horizontally and is opposite to the first clamping seat 3, is provided on the base 1. A second clamping assembly 6, which is opposite to the first clamping assembly 4, is rotatably mounted on the second clamping seat 5. A horizontal inner spray pipe 7 is fixedly mounted on the base 1. An inner nozzle 71 with a lateral nozzle is provided at the end of the inner spray pipe 7. An outer spray pipe 8, located above the sliding path of the first clamping seat 3 and the second clamping seat 5, is fixedly mounted on the base 1. A plurality of outer nozzles 81 with nozzles facing the inner nozzle 71 are provided on the outer spray pipe 8.
[0024] Specifically, the structure in which the first clamping seat 3 and the second clamping seat 5 are slidably disposed on the base 1 is as follows: two horizontal sliding rods 11 are disposed below the base 1, and the first clamping seat 3 and the second clamping seat 5 are respectively fixedly connected to the sliding rods 11 through the sliding grooves opened on the base 1. A transmission seat 32 is fixedly connected to the first sliding seat 31, and a transmission screw 12 is rotatably disposed below the base 1, which is screwed to the transmission seat 32 and connected to the first motor 2.
[0025] Specifically, the structure of the first clamping assembly 4 is as follows: The first clamping assembly 4 includes a first rotating ring 41, a first fixed half-hoop 42, and a first movable half-hoop 43. The first rotating ring 41 is rotatably sleeved on a first support ring 33 formed on the first clamping seat 3. The first fixed half-hoop 42 is fixedly connected to the end of the first support ring 33. The first movable half-hoop 43 is hinged to the first fixed half-hoop 42. The free end of the first movable half-hoop 43 is fastened to the first fixed half-hoop 42 by bolts. The first clamping seat 3 has a first through hole 34 communicating with the first support ring 33. The first rotating ring 41 is connected to the second motor 35 through the cooperation of a synchronous pulley and a synchronous belt.
[0026] Specifically, the structure of the second clamping assembly 6 is as follows: The second clamping assembly 6 includes a second rotating ring 61, a second fixed half-hoop 62, and a second movable half-hoop 63. The second rotating ring 61 is rotatably sleeved on the second support ring 52 formed on the second clamping seat 5. The second fixed half-hoop 62 is fixedly connected to the end of the second support ring 52. The second movable half-hoop 63 is hinged to the second fixed half-hoop 62. The free end of the second movable half-hoop 63 is fastened to the second fixed half-hoop 62 by bolts. The second clamping seat 5 has a second through hole 53 communicating with the second support ring 52.
[0027] In the above structure, the first clamping assembly 4 and the second clamping assembly 6 are used to clamp and fix the two ends of the steel pipe, respectively. Specifically, by loosening the bolts, the first movable half-hoop 43 and the second movable half-hoop 63 are swung to open the first fixed half-hoop 42 and the second fixed half-hoop 62, allowing the two ends of the steel pipe to be placed on the first fixed half-hoop 42 and the second fixed half-hoop 62 respectively. Then, the first movable half-hoop 43 and the second movable half-hoop 63 are swung and tightened to the first fixed half-hoop 42 and the second fixed half-hoop 62 respectively using bolts, so that the first movable half-hoop 43 cooperates with the first fixed half-hoop 42 and the second movable half-hoop 63 cooperates with the second fixed half-hoop 62 to respectively clamp and hold the steel pipe. The steel pipe is clamped and fixed between the first clamping seat 3 and the second clamping seat 5 by tightening both ends, thus realizing the feeding of the steel pipe. The first clamping seat 3 and the second clamping seat 5 are used to drive the steel pipe to move horizontally along its axis and maintain rotation. Specifically, the first motor 2 drives the transmission screw 12 to rotate. The transmission screw 12 drives the first clamping seat 3 to slide horizontally on the sliding rod 11 through the screw connection with the transmission seat 32, and simultaneously drives the second clamping seat 5 to slide horizontally on the sliding rod 11. At the same time, the second motor 35 drives the first rotating ring 41 to rotate on the first support ring 33 through the cooperation of the synchronous pulley and the synchronous belt. The first rotating ring 41 drives the first fixed half hoop 4. 2. The rotation of the steel pipe drives the second rotating ring 61 to rotate on the second support ring 52, thus realizing the movement and rotation of the steel pipe. During the movement of the steel pipe toward the inner spray pipe 7 and the outer spray pipe 8, the end of the inner spray pipe 7 passes through the second through hole 53 and enters the first support ring 33, and then into the steel pipe, so that the inner nozzle 71 enters the steel pipe. At the same time, the outer spray pipe 8 and its outer nozzle 81 are located above the moving path of the steel pipe. While the steel pipe moves and rotates, the inner spray pipe 7 and the outer spray pipe 8, which are connected to the external equipment for supplying anti-corrosion coating, spray anti-corrosion coating onto the inner and outer walls of the steel pipe through the side nozzle of the inner nozzle 71 and the nozzle of the outer nozzle 81 facing the steel pipe, respectively. This system enables simultaneous spraying of the inner and outer walls of the steel pipe. After spraying, the first clamping seat 3 and the second clamping seat 5 move the steel pipe to allow the inner nozzle 71 to exit the steel pipe. Once the coating has been initially shaped, the steel pipe can be removed. In the above-mentioned anti-corrosion coating spraying operation on the inner and outer walls of the steel pipe, the steel pipe is driven to move and rotate, which coordinates with the inner nozzle 71 and the outer nozzle 81 to simultaneously complete the spraying operation of the anti-corrosion coating on the inner and outer walls of the steel pipe. The inner nozzle 71 and the outer nozzle 81 are relatively fixed, making this spraying device more suitable for spraying long steel pipes. Moreover, the number of inner nozzles 71 and outer nozzles 81 is small, resulting in lower equipment costs and easier maintenance.
[0028] Preferably, in order to ensure the uniformity of spraying, the external spray pipe 8 is arc-shaped, so that a number of external nozzles 81 are arranged in a circle around the axis of the steel pipe above the moving path of the steel pipe.
[0029] Furthermore, based on the above structure, the end of the inner nozzle 7 is fixedly connected to a support sleeve 72 surrounding the inner nozzle 71. The support sleeve 72 has a spraying window 721 opposite to the nozzle of the inner nozzle 71. The end of the support sleeve 72 is provided with a plurality of annular array support rods 73, and the end of the support rods 73 is provided with bullseye wheels 74.
[0030] In the above preferred structure, when the end of the inner nozzle 7 is inserted into the steel pipe, the support sleeve 72 is simultaneously inserted into the steel pipe, so that the bullseye wheels 74 at the ends of several support rods 73 abut against the inner wall of the steel pipe. When the inner nozzle 7 moves and rotates inside the steel pipe, the balls of the bullseye wheels 74 roll against the inner wall of the steel pipe, providing support between the end of the inner nozzle 7 and the steel pipe, so that the inner nozzle 71 remains stable relative to the steel pipe, thereby ensuring the uniformity of the anti-corrosion coating when the inner nozzle 71 sprays the anti-corrosion coating onto the inner wall of the steel pipe. The spraying window 721 allows the coating sprayed from the nozzle of the inner nozzle 71 to pass through and be sprayed onto the inner wall of the steel pipe.
[0031] Preferably, the end of the support sleeve 72 is provided with a plurality of hinge slots 722, and a plurality of support rods 73 are hinged one by one in the plurality of hinge slots 722. The end of the support sleeve 72 is screwed with a limiting cover plate 75 that tightly abuts the support rods 73 in the hinge slots 722 to restrict the swing of the support rods 73. By limiting the swing of the support rods 73 by the limiting cover plate 75, the bullseye wheel 74 at the end of the support rods 73 can keep in contact with the inner wall of the steel pipe. After the spraying operation of the steel pipe is completed, the inner spray pipe 7 continues to move inside the steel pipe, so that the support sleeve 72 passes through the first through hole 34, and the limiting cover plate 75 is removed by a tool. The support rod 73 is swung to be housed in the hinge groove 722, so that the bullseye wheel 74 is away from the inner wall of the steel pipe. This prevents the bullseye wheel 74 from contacting the inner wall of the steel pipe and damaging the incompletely formed anti-corrosion coating during the subsequent withdrawal of the inner nozzle 7 from the steel pipe. The limiting of the support rod 73 in the hinge groove 722 can be achieved by the interference contact between the support rod 73 and the side wall of the hinge groove 722, or by tightening several support rods 73 with elastic rings.
[0032] Preferably, the support sleeve 72 is screwed to the end of the inner spray pipe 7, and the inner nozzle 71 is screwed to the end of the inner spray pipe 7. A material conveying hose 76 connected to the inner nozzle 71 is provided inside the inner spray pipe 7. The screw connection between the support sleeve 72 and the end of the inner spray pipe 7 facilitates the disassembly and assembly of the support sleeve 72. The screw connection between the inner nozzle 71 and the inner spray pipe 7 facilitates the disassembly and assembly of the inner nozzle 71 and the inner spray pipe 7. After the support sleeve 72 is removed, the inner nozzle 71 can be removed, which facilitates the maintenance of the bullseye wheel 74 and the inner nozzle 71 to ensure the quality of the spraying. The material conveying hose 76 allows the inner spray pipe 7 to only serve as a support for the inner nozzle 71 and the support sleeve 72. Since the conveying path to the inner nozzle 71 is relatively long, the material conveying hose 76 also facilitates the maintenance of the material conveying channel.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stainless steel pipe corrosion-resistant coating spraying device, comprising a base (1), characterized in that: The base (1) is provided with a first clamping seat (3) that can slide horizontally and is drivenly connected to a first motor (2) provided on the base (1). The first clamping seat (3) is rotatably provided with a first clamping assembly (4) that is drivenly connected to a second motor (35) provided on the first clamping seat (3). The base (1) is provided with a second clamping seat (5) that can slide horizontally and is opposite to the first clamping seat (3). The second clamping seat (5) is rotatably provided with a second clamping assembly (6) that is opposite to the first clamping assembly (4). The base (1) is fixedly provided with a horizontal inner nozzle (7). The end of the inner nozzle (7) is provided with an inner nozzle (71) with a lateral nozzle. The base (1) is fixedly provided with an outer nozzle (8) located above the sliding path of the first clamping seat (3) and the second clamping seat (5). The outer nozzle (8) is provided with a plurality of outer nozzles (81) with nozzles facing the inner nozzle (71).
2. The stainless steel pipe corrosion-resistant coating spraying device according to claim 1, characterized in that: Two horizontal sliding rods (11) are provided below the base (1). The first clamping seat (3) and the second clamping seat (5) are respectively fixedly connected to the sliding rods (11) through the sliding groove (13) opened on the base (1). The first sliding foot (31) is fixedly connected to the transmission seat (32). The transmission screw (12) is rotatably connected to the transmission seat (32) and is connected to the first motor (2) for transmission.
3. The stainless steel pipe corrosion-resistant coating spraying device according to claim 2, characterized in that: The first clamping assembly (4) includes a first rotating ring (41), a first fixed half hoop (42) and a first movable half hoop (43). The first rotating ring (41) is rotatably sleeved on the first support ring (33) formed on the first clamping seat (3). The first fixed half hoop (42) is fixedly connected to the end of the first support ring (33). The first movable half hoop (43) is hinged to the first fixed half hoop (42). The free end of the first movable half hoop (43) is fastened to the first fixed half hoop (42) by bolts. The first clamping seat (3) has a first through hole (34) communicating with the first support ring (33). The first rotating ring (41) is connected to the second motor (35) through the cooperation of the synchronous pulley and the synchronous belt.
4. The stainless steel pipe corrosion-resistant coating spraying device according to claim 3, characterized in that: The second clamping assembly (6) includes a second rotating ring (61), a second fixed half hoop (62), and a second movable half hoop (63). The second rotating ring (61) is rotatably sleeved on the second support ring (52) formed on the second clamping seat (5). The second fixed half hoop (62) is fixedly connected to the end of the second support ring (52). The second movable half hoop (63) is hinged to the second fixed half hoop (62). The free end of the second movable half hoop (63) is fastened to the second fixed half hoop (62) by bolts. The second clamping seat (5) has a second through hole (53) communicating with the second support ring (52).
5. The stainless steel pipe corrosion-resistant coating spraying device according to claim 4, characterized in that: The inner nozzle (7) is fixedly connected to a support sleeve (72) surrounding the inner nozzle (71). The support sleeve (72) has a spraying window (721) opposite to the nozzle of the inner nozzle (71). The end of the support sleeve (72) is provided with a number of support rods (73) arranged in a ring array. The end of the support rods (73) is provided with a bullseye wheel (74).
6. The stainless steel pipe corrosion-resistant coating spraying device according to claim 5, characterized in that: The end of the support sleeve (72) is provided with a plurality of hinge grooves (722), and a plurality of the support rods (73) are hinged in the plurality of hinge grooves (722). The end of the support sleeve (72) is screwed with a limiting cover plate (75) that presses the support rods (73) tightly against the hinge grooves (722) to restrict the swing of the support rods (73).
7. The stainless steel pipe corrosion-resistant coating spraying device according to claim 6, characterized in that: The support sleeve (72) is screwed to the end of the inner spray pipe (7), the inner nozzle (71) is screwed to the end of the inner spray pipe (7), and a material conveying hose (76) connected to the inner nozzle (71) is inserted inside the inner spray pipe (7).