Surface spraying protection device for fastener steel bar sleeve machining

By designing a surface coating protection device for fastener rebar sleeve processing, the problems of sleeve tipping and paint ingress were solved, achieving stable clamping, uniform coating, and environmental protection.

CN224114273UActive Publication Date: 2026-04-14MAANSHAN SHENFEI MASCH PARTS MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

During the spraying process of rebar sleeves, the sleeves are prone to tipping over, affecting spraying efficiency and quality, and paint can easily enter the inside of the sleeves, causing damage to the threads.

Method used

A protective device was designed, comprising a processing table, a geared motor, a hydraulic rod, a spraying assembly, and a sleeve positioning assembly. The hydraulic rod drives the upper baffle and top plate to move down and clamp the sleeve. The positioning seat prevents paint from entering the sleeve. The gear plate drives the rotating drum to ensure uniform spraying. Combined with a clean air box to filter paint gas, environmental pollution is reduced.

Benefits of technology

It achieves stable clamping of the sleeve and uniform spraying, prevents paint from entering the sleeve, improves spraying quality and efficiency, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reinforcing steel bar sleeve machining, and discloses a surface spraying protection device for fastener reinforcing steel bar sleeve machining, which comprises a machining table, a gear motor is fixedly arranged on the lower surface of the machining table, and an output shaft of the gear motor extends to the upper surface of the machining table and is fixedly provided with a lower tray. A top frame is fixedly mounted on the upper surface of the machining table. According to the surface spraying protection device for fastener steel bar sleeve machining, a hydraulic rod is driven to extend, an upper fence and a top disc are driven to move downwards, a sleeve is clamped between two positioning seats, the sleeve installation action is completed, then during spraying machining, external paint liquid is sprayed to the surface of the sleeve through a connector, a liquid guide ring pipe, a spraying pipe and a paint spraying head in sequence, and the surface of the sleeve is sprayed. And in the machining process, the end of the sleeve is blocked and protected through the positioning base, paint liquid is prevented from entering the sleeve in the spraying process, and therefore the purpose of conducting spraying protection on the sleeve is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of rebar sleeve processing technology, and more specifically to a surface spraying protection device for fastener rebar sleeve processing. Background Technology

[0002] Fasteners are widely used parts for mechanical connections, including screws, nuts, bolts, studs, washers, etc. Their main function is to mechanically fix or bond two or more parts together, ensuring the safe connection of mechanical parts and the normal operation of equipment. Fastener sleeves, as a type of fastener, also play an important role in many fields.

[0003] During the processing of rebar sleeves, in order to ensure the aesthetics of the rebar sleeves, paint needs to be sprayed on the outside of the rebar sleeves. Currently, when spraying rebar sleeves, the sleeves are placed vertically on the processing table, and then the outer wall of the sleeves is sprayed using a surrounding spray nozzle. However, during the spraying process, the sleeves are prone to tipping over under the impact of the paint, affecting the efficiency and quality of the sleeve spraying. Furthermore, after the sleeves tip over, paint may easily enter the inside of the sleeves, affecting the threads on the inside of the sleeves.

[0004] In view of this, the present invention proposes a surface spraying protection device for processing fastener steel bar sleeves. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a surface spraying protection device for processing fastener steel bar sleeves, so as to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a surface spraying protection device for processing fastener rebar sleeves, including a processing table, a reduction motor fixedly installed on the lower surface of the processing table, the output shaft of the reduction motor extending to the upper surface of the processing table and fixedly installed on a lower tray, a top frame fixedly installed on the upper surface of the processing table, a hydraulic rod embedded in the surface of the top frame, an upper baffle fixedly installed at the telescopic end of the hydraulic rod, a top plate rotatably connected to the inner top wall of the upper baffle, a spraying component provided on the inner wall of the upper baffle, and a sleeve positioning component provided between the lower tray and the top plate;

[0007] The spraying assembly includes a liquid guiding ring pipe fixedly installed on the inner wall of the upper enclosure. The liquid inlet end of the liquid guiding ring pipe extends to the outer wall of the upper enclosure and is fixedly connected to a connector. The connector is adapted to the external paint delivery pipe. Several spraying pipes are embedded on the bottom side of the liquid guiding ring pipe. Several paint spraying heads are equidistantly embedded on the surface of the spraying pipes. The output end of the paint spraying head faces the central axis of the upper enclosure.

[0008] The sleeve positioning assembly includes a lower rotating cylinder rotatably connected to the upper surface of the lower tray and an upper rotating cylinder rotatably connected to the lower surface of the top tray. There are several lower rotating cylinders and several upper rotating cylinders, and the several lower rotating cylinders and upper rotating cylinders are distributed in a circumferential array. The positions of the upper rotating cylinders and the lower rotating cylinders correspond to each other. The top end of the lower rotating cylinder and the bottom end of the upper rotating cylinder are provided with positioning seats for inserting and positioning the two ends of the sleeve. A gear disk is fixedly installed on the outer wall of the upper rotating cylinder, and an internal gear ring is fixedly installed on the inner wall of the upper enclosure. The internal gear ring and the gear disk mesh with each other.

[0009] As a further description of the above technical solution: a control panel is fixedly installed on the front of the top frame, and the control panel is electrically connected to an external power source through wires.

[0010] As a further description of the above technical solution: a limiting slide rod is fixedly installed on the top of the upper enclosure, and the limiting slide rod is slidably connected to the top frame; by setting the limiting slide rod, the movement path of the upper enclosure can be restricted, and the extension and retraction ends of the hydraulic rod can be protected against torsion.

[0011] As a further description of the above technical solution: the positioning seat is detachably connected to the upper and lower rotating cylinders. The positioning seat includes a threaded post and a positioning plate fixedly installed at the end of the threaded post. The threaded post is threadedly connected to the lower and upper rotating cylinders. A positioning post is fixedly installed at the end of the positioning plate away from the threaded post, and the positioning post is adapted to the inner diameter of the outer sleeve. When using the positioning seat to clamp the sleeve, the positioning plate can limit the end face of the sleeve, and the positioning post can limit the inner cavity of the sleeve, ensuring the stability of clamping. Since the threaded post is threadedly connected to the upper and lower rotating cylinders, the positioning seat can be replaced according to the model of the sleeve, enhancing the adaptability of use.

[0012] As a further description of the above technical solution: the surface of the positioning column is provided with a guide slope; by providing a guide slope, the difficulty of placing the sleeve on the surface of the positioning seat can be reduced.

[0013] As a further description of the above technical solution: the surface of the processing table is provided with a lower enclosure, which covers the surface of the lower tray, and an upper enclosure is fitted on top of the lower enclosure; by setting the lower enclosure, the area to be painted is shielded by the upper enclosure and the lower enclosure, which can reduce the harm caused by paint overflowing into the external environment.

[0014] As a further description of the above technical solution: A clean air box is fixedly installed on the right side of the processing table. The clean air box contains activated carbon particles. An air pump is fixedly installed at the bottom of the clean air box, and the air inlet of the air pump extends to the bottom of the clean air box. An air inlet pipe is embedded at the left end of the clean air box, and the air inlet of the air inlet pipe extends to the inside of the lower enclosure. By setting up a clean air box, during the spraying process, the air pump is used to extract air from the inside of the clean air box. The negative pressure is transmitted to the inside of the lower enclosure through the air inlet pipe, which can draw air containing paint into the clean air box. Then, the activated carbon particles are used to adsorb and filter the paint, thereby further achieving the purpose of environmental protection.

[0015] As a further description of the above technical solution: the front of the upper enclosure is provided with an observation window.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. Compared with the prior art, the surface spraying protection device for fastener rebar sleeve processing, when clamping and installing the sleeve, drives the hydraulic rod to extend, causing the upper guard and top plate to move down, and clamping the sleeve between two positioning seats to complete the sleeve installation action. Subsequently, during the spraying process, the external paint is sprayed onto the sleeve surface through the joint, liquid guiding ring pipe, spraying pipe and paint spray head in sequence to achieve the purpose of spraying the sleeve. During the processing, the positioning seats are used to block and protect the end of the sleeve to prevent the paint from entering the interior of the sleeve during the spraying process, thereby achieving the purpose of spraying protection for the sleeve.

[0018] 2. Compared with the prior art, the surface spraying protection device for fastener rebar sleeve processing uses a geared motor to drive the lower tray to rotate slowly during the spraying process. Under the transmission action of the sleeve itself, the top plate can be driven to rotate. During the rotation of the top plate, the gear disk meshes with the internal gear ring, which can drive the upper rotating drum to rotate, and then drive the lower rotating drum and the sleeve itself to rotate. This ensures the uniformity of the spraying process and protects the quality of the spraying process.

[0019] 3. Compared with existing technologies, this surface spraying protection device for fastener rebar sleeve processing can limit the movement path of the upper enclosure by setting a limiting slide bar, and can also provide anti-torsion protection for the extension and retraction end of the hydraulic rod; when using the positioning seat to clamp the sleeve, the positioning plate can limit the end face of the sleeve, and the positioning column can limit the inner cavity of the sleeve, ensuring the stability of clamping. The threaded connection between the threaded column and the upper and lower rotating cylinders allows the positioning seat to be replaced according to the sleeve model, enhancing the adaptability of use; by setting a guide slope, the difficulty of placing the sleeve on the surface of the positioning seat can be reduced.

[0020] 4. Compared with existing technologies, this surface spraying protection device for fastener rebar sleeve processing reduces the harm caused by paint spillage into the external environment by setting a lower enclosure and using the upper and lower enclosures to shield the area to be painted; by setting a clean air box, during the spraying process, an air pump is used to draw air into the clean air box, and the negative pressure is transmitted to the inside of the lower enclosure through the air inlet pipe, which can draw air containing paint into the clean air box, and then use activated carbon particles to adsorb and filter the paint, further achieving the purpose of environmental protection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional cross-section of the upper enclosure of this utility model;

[0023] Figure 3 This is a top-section three-dimensional structural diagram of the upper enclosure of this utility model;

[0024] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a three-dimensional structural diagram of the positioning seat of this utility model.

[0026] The attached diagram is labeled as follows: 1. Processing table; 2. Gear motor; 3. Lower tray; 4. Top frame; 5. Hydraulic rod; 6. Upper enclosure; 7. Top plate; 8. Liquid guide ring pipe; 9. Connector; 10. Spraying pipe; 11. Spray head; 12. Lower drum; 13. Upper drum; 14. Positioning seat; 1401. Threaded column; 1402. Positioning plate; 1403. Positioning pin; 1404. Guide slope; 15. Gear disc; 16. Internal gear ring; 17. Control panel; 18. Limiting slide bar; 19. Lower enclosure; 20. Clean air box; 21. Air pump; 22. Air inlet pipe; 23. Observation window. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The surface spraying protection device for processing fastener steel bar sleeves involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Reference Figures 1 to 5This utility model provides a surface spraying protection device for processing fastener rebar sleeves, including a processing table 1, a reduction motor 2 fixedly installed on the lower surface of the processing table 1, the output shaft of the reduction motor 2 extending to the upper surface of the processing table 1 and fixedly installed on a lower tray 3, and a top frame 4 fixedly installed on the upper surface of the processing table 1.

[0029] A control panel 17 is fixedly installed on the front of the top frame 4. The control panel 17 is electrically connected to an external power source via wires.

[0030] The surface of the top frame 4 is fitted with a hydraulic rod 5, and the telescopic end of the hydraulic rod 5 is fixedly installed with an upper enclosure 6. The inner top wall of the upper enclosure 6 is rotatably connected to a top plate 7.

[0031] A limiting slide rod 18 is fixedly installed on the top of the upper enclosure 6, and the limiting slide rod 18 is slidably connected to the top frame 4.

[0032] By setting the limit slide bar 18, the movement path of the upper enclosure 6 can be restricted, and the extension and retraction ends of the hydraulic rod 5 can be protected against torsion.

[0033] An observation window 23 is provided on the front of the upper enclosure 6.

[0034] By setting up the observation window 23, it is convenient to observe the processing status inside the upper enclosure 6.

[0035] The inner wall of the upper enclosure 6 is equipped with a spraying assembly, and a sleeve positioning assembly is provided between the lower tray 3 and the top tray 7.

[0036] The spraying assembly includes a liquid guiding ring pipe 8 fixedly installed on the inner wall of the upper enclosure 6. The liquid inlet end of the liquid guiding ring pipe 8 extends to the outer wall of the upper enclosure 6 and is fixedly connected to a connector 9. The connector 9 is adapted to the external paint delivery pipe. Several spraying pipes 10 are embedded on the bottom side of the liquid guiding ring pipe 8. Several paint spraying heads 11 are equidistantly embedded on the surface of the spraying pipes 10. The output end of the paint spraying head 11 faces the central axis of the upper enclosure 6.

[0037] The sleeve positioning assembly includes a lower rotating cylinder 12 rotatably connected to the upper surface of the lower tray 3 and an upper rotating cylinder 13 rotatably connected to the lower surface of the top plate 7. There are several lower rotating cylinders 12 and several upper rotating cylinders 13, and the several lower rotating cylinders 12 and upper rotating cylinders 13 are arranged in a circumferential array. The upper rotating cylinder 13 and the lower rotating cylinder 12 are positioned correspondingly. The top end of the lower rotating cylinder 12 and the bottom end of the upper rotating cylinder 13 are provided with positioning seats 14 for inserting and positioning the two ends of the sleeve.

[0038] The positioning seat 14 is detachably connected to the upper rotating cylinder 13 and the lower rotating cylinder 12. The positioning seat 14 includes a threaded post 1401 and a positioning plate 1402 fixedly installed at the end of the threaded post 1401. The threaded post 1401 is threadedly connected to the lower rotating cylinder 12 and the upper rotating cylinder 13. A positioning post 1403 is fixedly installed at the end of the positioning plate 1402 away from the threaded post 1401. The positioning post 1403 is adapted to the inner diameter of the outer sleeve.

[0039] It is worth noting that when using the positioning seat 14 to clamp the sleeve, the positioning plate 1402 can limit the end face of the sleeve, and the positioning pin 1403 can limit the inner cavity of the sleeve to ensure the stability of clamping. The threaded pin 1401 is threadedly connected to the upper rotating cylinder 13 and the lower rotating cylinder 12, and the positioning seat 14 can be replaced according to the model of the sleeve.

[0040] The surface of the positioning post 1403 is provided with a guide slope 1404.

[0041] By setting the guide slope 1404, the difficulty of placing the sleeve on the surface of the positioning seat 14 can be reduced.

[0042] It is worth noting that the surface coating protection device for processing the fastener rebar sleeve, when clamping and installing the sleeve, first places the sleeve on the surface of the positioning seat 14 on the surface of the lower rotating cylinder 12, then adjusts the position of the top plate 7 so that the positioning seat 14 on the surface of the upper rotating cylinder 13 corresponds to the sleeve, and then drives the hydraulic rod 5 to extend, driving the upper baffle 6 and the top plate 7 to move down, clamping the sleeve between the two positioning seats 14, thus completing the installation of the sleeve.

[0043] Furthermore, when the sleeve installed between the positioning seats 14 is sprayed, the external paint is sprayed onto the surface of the sleeve through the connector 9, the liquid guiding ring pipe 8, the spray pipe 10 and the paint spray head 11 in sequence, so as to achieve the purpose of spraying the sleeve. During the process, the positioning seats 14 are used to block and protect the end of the sleeve to prevent the paint from entering the inside of the sleeve during the spraying process, thereby achieving the purpose of spraying and protecting the sleeve.

[0044] A gear disk 15 is fixedly installed on the outer wall of the upper rotating cylinder 13, and an internal gear ring 16 is fixedly installed on the inner wall of the upper enclosure 6. The internal gear ring 16 and the gear disk 15 mesh with each other.

[0045] It is worth noting that during the spraying process, the lower tray 3 is slowly rotated by the reduction motor 2. Under the transmission action of the sleeve itself, the top plate 7 can be driven to rotate. During the rotation of the top plate 7, the gear disk 15 meshes with the internal gear ring 16, which can drive the upper rotating drum 13 to rotate, thereby driving the lower rotating drum 12 and the sleeve itself to rotate. This ensures the uniformity of the spraying process and protects the quality of the spraying process.

[0046] The surface of the processing table 1 is provided with a lower enclosure 19, which covers the surface of the lower tray 3, and an upper enclosure 6 is fitted on top of the lower enclosure 19.

[0047] This surface coating protection device for fastener rebar sleeve processing, by setting a lower enclosure 19, uses the upper enclosure 6 and the lower enclosure 19 to shield the area to be painted, which can reduce the damage caused by paint overflowing into the external environment.

[0048] A clean air box 20 is fixedly installed on the right side of the processing table 1. The clean air box 20 contains activated carbon granules. An air pump 21 is fixedly installed at the bottom of the clean air box 20. The air inlet of the air pump 21 extends to the bottom of the clean air box 20. An air inlet pipe 22 is embedded at the left end of the clean air box 20. The air inlet of the air inlet pipe 22 extends to the inside of the lower enclosure 19.

[0049] It is worth noting that by setting up the clean air box 20, during the spraying process, the air pump 21 is used to draw air from the inside of the clean air box 20. The negative pressure is transmitted to the inside of the lower enclosure 19 through the air inlet pipe 22, which can draw the air containing paint into the clean air box 20. Then, activated carbon particles are used to adsorb and filter the paint, thereby achieving the purpose of environmental protection.

[0050] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A surface coating protection device for processing fastener rebar sleeves, comprising a processing table (1), characterized in that: A geared motor (2) is fixedly installed on the lower surface of the processing table (1). The output shaft of the geared motor (2) extends to the upper surface of the processing table (1) and a lower tray (3) is fixedly installed thereon. A top frame (4) is fixedly installed on the upper surface of the processing table (1). A hydraulic rod (5) is embedded in the surface of the top frame (4). An upper enclosure (6) is fixedly installed at the telescopic end of the hydraulic rod (5). A top plate (7) is rotatably connected to the inner top wall of the upper enclosure (6). A spraying assembly is provided on the inner wall of the upper enclosure (6). A sleeve positioning assembly is provided between the lower tray (3) and the top plate (7). The spraying assembly includes a liquid guiding ring pipe (8) fixedly installed on the inner wall of the upper enclosure (6). The liquid inlet end of the liquid guiding ring pipe (8) extends to the outer wall of the upper enclosure (6) and is fixedly connected to a connector (9). The connector (9) is adapted to the external paint delivery pipe. Several spraying pipes (10) are embedded on the bottom side of the liquid guiding ring pipe (8). Several paint spraying heads (11) are equidistantly embedded on the surface of the spraying pipes (10). The output end of the paint spraying head (11) faces the central axis of the upper enclosure (6). The sleeve positioning assembly includes a lower rotating cylinder (12) rotatably connected to the upper surface of the lower tray (3) and an upper rotating cylinder (13) rotatably connected to the lower surface of the top plate (7). There are several lower rotating cylinders (12) and several upper rotating cylinders (13), and the several lower rotating cylinders (12) and upper rotating cylinders (13) are arranged in a circular array. The upper rotating cylinder (13) and the lower rotating cylinder (12) are positioned correspondingly. The top end of the lower rotating cylinder (12) and the bottom end of the upper rotating cylinder (13) are provided with positioning seats (14) for inserting and positioning the two ends of the sleeve. A gear disk (15) is fixedly installed on the outer wall of the upper rotating cylinder (13), and an internal gear ring (16) is fixedly installed on the inner wall of the upper enclosure (6). The internal gear ring (16) and the gear disk (15) mesh with each other.

2. The surface coating protection device for processing fastener rebar sleeves according to claim 1, characterized in that: A control panel (17) is fixedly installed on the front of the top frame (4), and the control panel (17) is electrically connected to an external power source through wires.

3. The surface spraying protection device for processing fastener rebar sleeves according to claim 1, characterized in that: A limiting slide rod (18) is fixedly installed on the top of the upper enclosure (6), and the limiting slide rod (18) is slidably connected to the top frame (4).

4. The surface coating protection device for processing fastener rebar sleeves according to claim 1, characterized in that: The positioning seat (14) is detachably connected to the upper rotating cylinder (13) and the lower rotating cylinder (12). The positioning seat (14) includes a threaded post (1401) and a positioning plate (1402) fixedly installed at the end of the threaded post (1401). The threaded post (1401) is threadedly connected to the lower rotating cylinder (12) and the upper rotating cylinder (13). A positioning post (1403) is fixedly installed at the end of the positioning plate (1402) away from the threaded post (1401). The positioning post (1403) is adapted to the inner diameter of the outer sleeve.

5. The surface spraying protection device for processing fastener rebar sleeves according to claim 4, characterized in that: The surface of the positioning post (1403) is provided with a guide slope (1404).

6. The surface coating protection device for processing fastener rebar sleeves according to claim 1, characterized in that: The surface of the processing table (1) is provided with a lower enclosure (19), which covers the surface of the lower tray (3), and an upper enclosure (6) is fitted on top of the lower enclosure (19).

7. A surface coating protection device for processing fastener rebar sleeves according to claim 6, characterized in that: A clean air box (20) is fixedly installed on the right side of the processing table (1). The clean air box (20) contains activated carbon particles. A vacuum pump (21) is fixedly installed at the bottom of the clean air box (20). The air inlet of the vacuum pump (21) extends to the bottom of the clean air box (20). An air inlet pipe (22) is embedded at the left end of the clean air box (20). The air inlet of the air inlet pipe (22) extends to the inside of the lower enclosure (19).

8. The surface spraying protection device for processing fastener rebar sleeves according to claim 1, characterized in that: The upper enclosure (6) has an observation window (23) on its front.