A surface treatment apparatus for producing metal pipe caps
By adjusting the distance between the abutments using a bevel gear and threaded rod mechanism, the problem of poor adaptability of existing clamping devices to metal caps of different sizes is solved, achieving stable clamping and efficient surface treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN JOPAR MACHINERY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
Smart Images

Figure CN224425187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal pipe cap processing technology, and in particular to a surface treatment device for producing metal pipe caps. Background Technology
[0002] Metal pipe caps are fittings used to seal the ends of metal pipes. They are widely used in piping systems, mechanical equipment, pressure vessels, and other fields, and have functions such as protecting pipelines, preventing leaks, and maintaining system integrity. Surface treatment can adjust the roughness of the cap. For example, polishing and sandblasting processes can make the surface smoother or increase friction to meet different sealing requirements. Smooth surfaces can reduce fluid resistance, while rough surfaces are suitable for connection scenarios that require increased friction. During the processing of metal pipe caps, defects such as scratches and oxide spots may occur, affecting the product image. Polishing, wire drawing, and spraying processes can eliminate surface defects, obtain a uniform gloss or color, and improve the product grade.
[0003] In existing processing, grinding and polishing devices are used to grind and polish the surface of metal caps. The metal caps need to be clamped and fixed before surface treatment. However, the surface treatment is affected by the clamping of the metal caps by ordinary clamping devices. Therefore, a surface treatment device for producing metal caps is proposed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for producing metal pipe caps, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a surface treatment device for producing metal pipe caps, comprising a device plate and a placement plate disposed at the top of the device plate. A connecting column is rotatably connected to the top of the device plate, and the placement plate is fixedly connected to the top of the connecting column. Multiple placement cylinders are arranged in a circular array on the placement plate. A rotating rod is rotatably connected to the bottom of the placement plate. Fixing plates are symmetrically installed inside the multiple placement cylinders. A connecting rod is rotatably connected to each fixing plate. A first bevel gear is installed at one end of each connecting rod, and a threaded rod is installed at the other end of each connecting rod. A connecting cylinder is threadedly connected to each threaded rod. A stop block is installed at one end of each connecting cylinder, and a second bevel gear is installed at the top of each rotating rod.
[0006] As a further technical solution of this utility model, the second bevel gear meshes with the first bevel gear, and each of the placement cylinders is symmetrically provided with through holes that are compatible with the connecting cylinder, and one end of each of the connecting cylinders is located outside the placement cylinder.
[0007] As a further technical solution of this utility model, one end of each of the abutments is provided with an arc surface, the top end of each of the rotating rods extends into the interior of the placement cylinder, and the other end of each of the rotating rods is located below the placement plate and is equipped with a knob.
[0008] As a further technical solution of this utility model, a support plate is installed at the top of the device plate, a horizontal plate is installed at the top of the support plate, a first strip groove is provided through the middle of the horizontal plate, a first connecting rod is installed in the first strip groove, a first connecting block is slidably connected to the first connecting rod, and a strip frame is installed at the bottom of the first connecting block.
[0009] As a further technical solution of this utility model, a second strip groove is provided inside the strip frame, a second connecting rod is installed in the second strip groove, a second connecting block is slidably connected to the second connecting rod, and a concave frame is installed at the bottom of the second connecting block.
[0010] As a further technical solution of this utility model, a connecting plate is slidably arranged on the concave frame, a grinder is installed at the bottom of the connecting plate, connecting pieces are symmetrically installed on the connecting plate, through grooves are symmetrically arranged on the concave frame, a sliding rod is installed in each of the two through grooves, and sliding holes adapted to the sliding rods are provided on the two connecting pieces.
[0011] As a further technical solution of this utility model, the connecting piece is slidably connected to the slide rod, and a spring is sleeved on both slide rods. The bottom of the two springs abuts against the bottom of the through groove, and the top of the two springs abuts against the bottom of the connecting plate.
[0012] This utility model provides a surface treatment device for producing metal pipe caps, which has the following advantages compared with the prior art:
[0013] This design discloses a surface treatment device for producing metal caps. It comprises first and second bevel gears, a threaded rod, and a connecting cylinder. Rotating the rotating rod drives the second bevel gear to rotate, which in turn drives two first bevel gears inside the placing cylinder to rotate in different directions. Simultaneously, this drives two threaded rods to rotate in different directions. As the threaded rods rotate, the connecting cylinder moves outwards, causing the abutment blocks to move outwards as well. Reversing the rotation of the rotating rod brings the two abutment blocks closer together, allowing the distance between them to be adjusted. This adjustment is made according to the inner diameter of different metal caps. The abutment blocks abut against the inner wall of the metal cap, placing the cap on the placing cylinder. The adjustable distance between the abutment blocks allows for placement and fixing of metal caps of different sizes, facilitating the grinding and polishing of the outer surface of the caps. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of a surface treatment device for producing metal pipe caps;
[0015] Figure 2 A side view of the overall structure of a surface treatment apparatus for producing metal pipe caps;
[0016] Figure 3 A surface treatment apparatus for producing metal pipe caps Figure 2 Enlarged structural diagram at point A;
[0017] Figure 4 This is a schematic diagram of the internal structure of the placement cylinder of a surface treatment device for producing metal pipe caps.
[0018] In the diagram: 1. Device plate; 2. Connecting column; 3. Placement plate; 4. Rotating rod; 5. Placement cylinder; 6. Support plate; 7. Horizontal plate; 8. Strip frame; 9. Concave frame; 10. Connecting plate; 11. Grinding tool; 12. First connecting rod; 13. First connecting block; 14. Second connecting rod; 15. Second connecting block; 16. Through groove; 17. Sliding rod; 18. Connecting piece; 19. Spring; 20. Fixing piece; 21. Connecting rod; 22. First bevel gear; 23. Threaded rod; 24. Connecting cylinder; 25. Abutment block; 26. Second bevel gear. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a surface treatment device for producing metal pipe caps, including a device plate 1 and a placement plate 3 set at the top of the device plate 1. A connecting column 2 is rotatably connected to the top of the device plate 1, and the placement plate 3 is fixedly connected to the top of the connecting column 2. Multiple placement cylinders 5 are installed in a circular array on the placement plate 3, and a rotating rod 4 is rotatably connected to the bottom of the placement plate 3.
[0021] Multiple placement cylinders 5 are symmetrically equipped with fixing plates 20 inside. Each fixing plate 20 is rotatably connected to a connecting rod 21. A first bevel gear 22 is installed at one end of each connecting rod 21, and a threaded rod 23 is installed at the other end of each connecting rod 21. A connecting cylinder 24 is threadedly connected to each threaded rod 23. A stop block 25 is installed at one end of each connecting cylinder 24. A second bevel gear 26 is installed at the top of each rotating rod 4, and the second bevel gear 26 meshes with the first bevel gear 22. Each placement cylinder 5 is symmetrically provided with through holes that correspond to the connecting cylinders 24. One end of each connecting cylinder 24 is located outside the placement cylinder 5. One end of each stop block 25 is provided with an arc surface. The top of each rotating rod 4 extends to the placement cylinder 5. Inside the placement cylinder 5, the other end of each rotating rod 4 is located below the placement plate 3 and is equipped with a knob for easy rotation of the rotating rod 4. Rotating the rotating rod 4 drives the second bevel gear 26 to rotate. The second bevel gear 26 meshes with the two first bevel gears 22, driving the two first bevel gears 22 to rotate in different directions. At the same time, it drives the two threaded rods 23 to rotate in different directions through the connecting rod 21. The two connecting cylinders 24 extend outward on the placement cylinder 5, driving the abutment block 25 to move outward together. Reverse rotation of the rotating rod 4 drives the two connecting cylinders 24 to retract inward on the placement cylinder 5, driving the abutment block 25 to move together. The distance between the abutment blocks 25 is adjusted to facilitate clamping metal tube caps of different sizes for surface polishing.
[0022] A support plate 6 is mounted on the top of the device plate 1, and a horizontal plate 7 is mounted on the top of the support plate 6. A first strip groove is provided through the middle of the horizontal plate 7, and a first connecting rod 12 is installed in the first strip groove. A first connecting block 13 is slidably connected to the first connecting rod 12. A strip frame 8 is installed at the bottom of the first connecting block 13, and a second strip groove is provided inside the strip frame 8. A second connecting rod 14 is installed in the second strip groove, and a second connecting block 15 is slidably connected to the second connecting rod 14. A concave frame 9 is installed at the bottom of the second connecting block 15, and a connecting plate 10 is slidably provided on the concave frame 9. A grinder 11 is installed at the bottom of the connecting plate 10, and connecting pieces 18 are symmetrically installed on the connecting plate 10. Through grooves 16 are symmetrically provided on the concave frame 9, and sliding rods 17 are installed in both through grooves 16. The two connecting pieces 18 are provided with fittings that are compatible with the sliding rods 17. The sliding hole, the connecting piece 18 and the sliding rod 17 are slidably connected, and springs 19 are sleeved on both sliding rods 17. The bottom of the two springs 19 abuts against the bottom of the through groove 16, and the top of the two springs 19 abuts against the bottom of the connecting plate 10. The strip frame 8 slides on the first connecting rod 12 through the first connecting block 13 to adjust its position back and forth. At the same time, the position of the grinder 11 is adjusted back and forth. The second connecting block 15 slides left and right on the second connecting rod 14, driving the concave frame 9 to move left and right. At the same time, the position of the grinder 11 is adjusted left and right. Hold the grinder 11 and pull it down. The connecting piece 18 slides down on the sliding rod 17. The connecting piece 18 squeezes the spring 19, so that the grinder 11 slides down and abuts against the metal tube cap. The surface of the metal tube cap is ground and polished. Release the grinder 11 and the spring force of the spring 19 makes the grinder 11 return to its original position.
[0023] The working principle of this utility model is as follows: A metal cap requiring surface treatment is fitted over the placement cylinder 5. Rotating the rotating rod 4 drives the second bevel gear 26 to rotate. The second bevel gear 26 meshes with two first bevel gears 22, causing the two first bevel gears 22 to rotate in different directions. Simultaneously, the connecting rod 21 drives two threaded rods 23 to rotate in different directions. The two connecting cylinders 24 extend outward on the placement cylinder 5, simultaneously moving the abutment blocks 25 outward together. Reverse rotation of the rotating rod 4 causes the two connecting cylinders 24 to retract inward on the placement cylinder 5, moving the abutment blocks 25 together, thus adjusting the distance between the abutment blocks 25 for easier adjustment. Metal caps of different sizes are clamped and their surfaces are polished. The polisher 11 is held and pulled down. The strip frame 8 slides on the first connecting rod 12 via the first connecting block 13 to adjust its position back and forth. At the same time, the position of the polisher 11 is adjusted back and forth. The second connecting block 15 slides left and right on the second connecting rod 14, causing the concave frame 9 to move left and right. At the same time, the position of the polisher 11 is adjusted left and right. The connecting piece 18 slides down on the slide rod 17. The connecting piece 18 compresses the spring 19, causing the polisher 11 to slide down and abut against the metal cap to polish the surface of the metal cap. The placement plate 3 is rotated to polish the metal caps in sequence.
[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A surface treatment device for producing a metal pipe cap, comprising a device plate (1) and a placement disc (3) provided at the top end of the device plate (1), characterized in that, The top of the device plate (1) is rotatably connected to a connecting column (2), the placement plate (3) is fixedly connected to the top of the connecting column (2), a plurality of placement cylinders (5) are installed in a ring array on the placement plate (3), and a rotating rod (4) rotatably connected to the bottom of the placement plate (3). A plurality of placement cylinders (5) are symmetrically equipped with fixing plates (20), each fixing plate (20) is provided with a connecting rod (21) rotatably connected thereto, one end of each connecting rod (21) is equipped with a first bevel gear (22), the other end of each connecting rod (21) is equipped with a threaded rod (23), each threaded rod (23) is threadedly connected with a connecting cylinder (24), one end of each connecting cylinder (24) is equipped with a stop block (25), and the top end of each rotating rod (4) is equipped with a second bevel gear (26).
2. A surface treatment apparatus for producing a metal pipe cap according to claim 1, characterized in that, The second bevel gear (26) meshes with the first bevel gear (22). Each of the placement cylinders (5) is symmetrically provided with through holes that are compatible with the connecting cylinder (24). One end of each connecting cylinder (24) is located outside the placement cylinder (5).
3. The surface treatment apparatus for producing a metal pipe cap according to claim 1, characterized by Each of the abutments (25) has an arc surface at one end, and the top of each of the rotating rods (4) extends into the interior of the placement cylinder (5). The other end of each of the rotating rods (4) is located below the placement plate (3) and is equipped with a knob.
4. A surface treatment apparatus for producing a metal pipe cap according to claim 3, wherein A support plate (6) is installed at the top of the device plate (1), and a horizontal plate (7) is installed at the top of the support plate (6). A first strip groove is provided through the middle of the horizontal plate (7). A first connecting rod (12) is installed in the first strip groove. A first connecting block (13) is slidably connected to the first connecting rod (12). A strip frame (8) is installed at the bottom of the first connecting block (13).
5. The surface treatment apparatus for producing metal pipe caps according to claim 4, characterized in that, The inside of the strip frame (8) is provided with a second strip groove, in which a second connecting rod (14) is installed. A second connecting block (15) is slidably connected to the second connecting rod (14), and a concave frame (9) is installed at the bottom of the second connecting block (15).
6. The surface treatment apparatus for producing metal pipe caps according to claim 5, characterized in that, A connecting plate (10) is slidably disposed on the concave frame (9). A grinder (11) is installed at the bottom of the connecting plate (10). Connecting pieces (18) are symmetrically disposed on the connecting plate (10). Through grooves (16) are symmetrically disposed on the concave frame (9). Slide rods (17) are installed in both through grooves (16). Slide holes that are compatible with slide rods (17) are provided on both connecting pieces (18).
7. The surface treatment apparatus for producing metal pipe caps according to claim 6, characterized in that, The connecting piece (18) is slidably connected to the slide rod (17). Springs (19) are sleeved on both slide rods (17). The bottom of the two springs (19) abuts against the bottom of the through groove (16), and the top of the two springs (19) abuts against the bottom of the connecting plate (10).