Spraying machine for piston rod production

By using a cylinder to drive an arc plate and a rotating device in the piston rod spraying machine, positioning and uniform spraying of piston rods of different diameters and lengths can be achieved, solving the applicability and uniformity problems of traditional spraying machines and improving operating efficiency and spraying quality.

CN223915745UActive Publication Date: 2026-02-17ANHUI XULI MACHINERY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520401984.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-17
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Traditional piston rod spraying machines can only spray piston rods of the same diameter or length, which is cumbersome to operate, has low applicability, and produces poor spray uniformity.

Method used

The spray box uses cylinders arranged in an array around the perimeter to drive the arc plate to move horizontally. Combined with translation components and a rotation device, it achieves axial positioning and uniform spraying of piston rods with different diameters and lengths. The uniform spraying of the paint is ensured by the rotation driven by a servo motor and the extension and retraction adjustment of the spraying components.

Benefits of technology

It improves the versatility and compatibility of the spraying machine, ensures uniformity and quality of coating on the piston rod surface, and reduces operational complexity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223915745U_ABST
Patent Text Reader

Abstract

The utility model discloses a spraying machine for piston rod production, and relates to the technical field of spraying machines for piston rod production, the spraying machine comprises a spraying box, a translation assembly, a spraying assembly and a rotating device, a plurality of first cylinders are distributed around the spraying box in an array mode, and the first cylinders drive arc plates to move horizontally to form concentric circles with different diameters; the horizontal moving assembly comprises a second air cylinder fixed to the spraying box, the second air cylinder drives a rotating shaft to move up and down through a sliding block, fixing of the axes of the piston rods with different lengths is achieved, and the rotating device comprises a servo motor fixed to the bottom of the spraying box. The servo motor drives the rotating plate to rotate at a constant speed, a pump body on the spraying assembly conveys coating to uniformly spray the piston rod rotating at a constant speed through the spray head, the third air cylinder drives the arc-shaped plate to move horizontally, the distance between the spray head and the piston rod is adjusted, the surface of the piston rod is sprayed more uniformly, and the spraying quality is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of spraying machines for piston rod production, and specifically to a spraying machine for piston rod production. Background Technology

[0002] Piston rods are widely used in many industrial fields. During long-term use, piston rods are susceptible to wear, corrosion, and other adverse factors, which reduce the performance and service life of equipment. To improve their corrosion resistance, wear resistance, and high-temperature resistance, their surface needs to be coated. This has driven the development of piston rod coating machines to meet the needs of large-scale, high-quality production.

[0003] Thermal spraying technology has been continuously developing since its emergence in the early 20th century, evolving from its early use in applying decorative coatings to its later applications in mechanical parts repair and surface strengthening. In recent years, the advent of new materials such as high-alloy and zinc-aluminum alloys has led to the rapid development of arc spraying technology. New processes such as supersonic arc spraying and high-speed pulse arc spraying have emerged, significantly improving spraying efficiency and coating quality. This has provided technical support for the development of piston rod spraying machines, enabling them to better achieve automated and precise spraying operations.

[0004] Currently, most piston rod spraying machines use a rotary spraying method. The piston rod is fixed on the operating table, and a motor drives the piston rod to rotate. The rotating piston rod is then sprayed through a spraying pipe. Traditional piston rod spraying methods can only spray piston rods of the same diameter or length, which makes operation cumbersome and results in poor equipment versatility and compatibility. In addition, the spraying equipment cannot extend or retract, leading to poor uniformity of the spraying. Utility Model Content

[0005] The purpose of this utility model is to provide a spraying machine for piston rod production, which solves the following technical problems: Traditional piston rod spraying methods can only spray piston rods of the same diameter or length, which makes them cumbersome to operate and has low applicability. At the same time, the spraying settings cannot be extended or retracted, resulting in poor uniformity of the piston rods sprayed by the spraying machine.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A spraying machine for producing piston rods includes a spraying box. Multiple first cylinders are arranged in an array around the spraying box. An arc plate is fixed to the end of the piston rod of each first cylinder. The first cylinder drives the arc plate to move horizontally and positions the piston rod axially. A translation assembly is fixedly installed on one side of the spraying box. The translation assembly drives a clamp to move vertically and axially fix the piston rod. A spraying assembly is fixed to one side of the bottom of the spraying box. A rotating device is installed at the bottom of the spraying box. The rotating device drives the piston rod to rotate around a central axis.

[0008] As a further embodiment of this utility model: the translation component includes a second cylinder fixed on the spray box, a slider fixedly installed on the piston rod of the second cylinder, a connecting rod horizontally fixed on the slider, a sliding groove opened on the side of the spray box, the connecting rod horizontally passing through the sliding groove and a support plate fixed at its end, a plurality of springs fixed at the bottom of the support plate, a mounting plate fixed at the bottom of the plurality of springs, and a rotating shaft rotatably connected to the bottom of the mounting plate.

[0009] As a further embodiment of this utility model: the rotating device includes a servo motor fixed to the bottom of the spray box, and a rotating plate is fixedly installed on the output shaft of the servo motor.

[0010] As a further embodiment of this utility model: the spraying assembly includes a material box fixed to the bottom edge of the spraying box, a pump body fixedly installed on the upper part of the material box, a spraying hose connected to the pump body, and spray nozzles evenly distributed on the spraying hose.

[0011] As a further embodiment of this utility model: a third cylinder is fixed at the upper end of the material box of the spraying box, an arc-shaped plate is fixed at the end of the third cylinder, and a spraying hose is fixed on the arc-shaped plate.

[0012] As a further embodiment of this utility model, a rubber pad is fixed to the end of the arc plate.

[0013] As a further embodiment of this utility model: two support rods are fixedly installed on the side inside the spray box, and a fan is fixedly installed on the two support rods.

[0014] As a further embodiment of this utility model, a base is fixedly installed at the bottom of the spray box.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model uses multiple first cylinders arranged in an array around the spray box to drive the arc plate to move horizontally, forming concentric circles of different diameters, which can quickly position the axis of piston rods of different diameters.

[0017] (2) The second cylinder drives the slider to move up and down, thereby driving the rotating shaft to move up and down, so as to fix the piston rod shaft of different lengths, which greatly improves the versatility and compatibility of the equipment.

[0018] (3) The rotating plate is driven to rotate evenly by the servo motor. The pump body on the spraying assembly sprays the paint from the nozzle onto the surface of the piston rod rotating at a constant speed. The third cylinder drives the arc plate to move horizontally and adjusts the distance between the nozzle and the piston rod, so that the surface of the piston rod is sprayed more evenly, which greatly improves the spraying quality of the piston rod. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0021] Figure 2 This is a left view of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the spraying assembly of this utility model;

[0023] Figure 4 This is a top view of the entire utility model.

[0024] In the diagram: 1. Spraying box; 2. First cylinder; 3. Arc plate; 4. Translation assembly; 5. Spraying assembly; 6. Rotation device; 7. Second cylinder; 8. Slider; 9. Connecting rod; 10. Sliding groove; 11. Support plate; 12. Spring; 13. Mounting plate; 14. Rotating shaft; 15. Servo motor; 16. Rotating plate; 17. Material box; 18. Pump body; 19. Spraying hose; 20. Spray nozzle; 21. Third cylinder; 22. Arc plate; 23. Rubber pad; 24. Support rod; 25. Fan; 26. Base. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4As shown, this utility model is a spraying machine for piston rod production, including a spraying box 1. Multiple first cylinders 2 are arranged in an array around the spraying box 1. An arc plate 3 is fixed to the end of the piston rod of each of the first cylinders 2. The first cylinders 2 drive the arc plate 3 to move horizontally, axially positioning the piston rod. The horizontal movement of the arc plate 3 can form concentric circles of different diameters, facilitating rapid axial positioning of piston rods of different diameters. A translation component 4 is fixedly installed on one side of the spraying box 1, driving a clamp to move up and down to axially fix the piston rod. A spraying component 5 is fixed to one side of the bottom of the spraying box 1. A rotating device 6 is installed at the bottom of the spraying box 1, driving the piston rod to rotate around its central axis.

[0027] The translation component 4 includes a second cylinder 7 fixed on the spray box 1. A slider 8 is fixedly installed on the piston rod of the second cylinder 7. A connecting rod 9 is horizontally fixed on the slider 8. A sliding groove 10 is provided on the side of the spray box 1. The connecting rod 9 can move up and down in the sliding groove 10. A support plate 11 is fixed at the end of the connecting rod 9 horizontally passing through the sliding groove 10. A plurality of springs 12 are fixed at the bottom of the support plate 11. The springs 12 use their elastic deformation to buffer external forces, reduce the impact of the rotating shaft 14 on the piston rod, and reduce the risk of piston rod damage. A mounting plate 13 is fixed at the bottom of the plurality of springs 12. A rotating shaft 14 is rotatably connected to the bottom of the mounting plate 13. The rotating shaft 14 can rotate around the mounting plate 13.

[0028] The rotating device 6 includes a servo motor 15 fixed to the bottom of the spray box 1. A rotating plate 16 is fixedly installed on the output shaft of the servo motor 15. The rotating plate 16 drives the piston rod to rotate, thereby driving the rotating shaft 14 to rotate.

[0029] The spraying assembly 5 includes a material box 17 fixed to the bottom edge of the spraying box 1. A pump body 18 is fixedly installed on the upper part of the material box 17. A spraying hose 19 is connected to the pump body 18. Spray nozzles 20 are evenly distributed on the spraying hose 19. The paint is transported by the pump body 18 and sprayed evenly from the spray nozzles 20 through the spraying hose 19.

[0030] The spray box 1 has a third cylinder 21 fixed at the upper end of the material box 17. The end of the third cylinder 21 is fixed with an arc plate 22. A spray hose 19 is fixed on the arc plate 22. The bottom length of the spray hose 19 can be freely extended and retracted to ensure that the spray hose 19 moves with the arc plate 22 when it moves back and forth.

[0031] A rubber pad 23 is fixed to the end of the arc plate 3. The rubber pad 23 can prevent the piston rod from deforming due to excessive local pressure.

[0032] Two support rods 24 are fixedly installed on the side inside the spray box 1. A fan 25 is fixedly installed on the two support rods 24. The fan 25 is used to quickly dry the piston rod after spraying, thereby improving the spraying efficiency.

[0033] A base 26 is fixedly installed at the bottom of the spray box 1.

[0034] The working principle of this utility model is as follows: The operator places the piston rod on the rotating plate 16 and starts the first cylinder 2. The first cylinder 2 drives the arc plate 3 to move horizontally to quickly position the piston rod at the axis. At this time, the second cylinder 7 is started, which drives the slider 8 to move downward, thereby driving the connecting rod 9 to move downward. The rotating shaft 14 on the connecting rod 9 fixes the piston rod at the axis. The servo motor 15 at the bottom of the spray box 1 drives the rotating plate 16 to rotate. The rotating plate 16 drives the piston rod to rotate at a constant speed, thereby driving the rotating shaft 14 to rotate. At this time, the pump body 18 sprays the paint from the material box 17 through the spray hose 19 and sprays it evenly from the nozzle 20 to spray the piston rod evenly. The third cylinder 21 drives the arc plate 22 to move back and forth, which can adjust the distance between the nozzle 20 and the piston rod, so that the surface of the piston rod is sprayed more evenly. After the spraying is completed, the fan 25 is started to quickly dry the sprayed piston rod.

[0035] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A spray machine for piston rod production, characterized in that The utility model provides a spraying box, the spraying box is provided with a plurality of first air cylinders (2) arranged around the spraying box (1), the end of the piston rod of the first air cylinder (2) is fixed with a circular arc plate (3), the first air cylinder (2) is used to drive the circular arc plate (3) to move horizontally, the piston rod is positioned on the axis, one side of the spraying box (1) is fixedly provided with a translation assembly (4), the translation assembly (4) is used to drive the axial fixed piston rod to move up and down, one side of the bottom of the spraying box (1) is fixedly provided with a spraying assembly (5), the bottom of the spraying box (1) is provided with a rotating device (6), and the rotating device (6) is used to drive the piston rod to rotate around the central axis.

2. The spray machine for producing a piston rod according to claim 1, characterized in that The translation assembly (4) comprises a second air cylinder (7) fixed on the spraying box (1), a sliding block (8) is fixedly installed on the piston rod of the second air cylinder (7), a connecting rod (9) is horizontally fixed on the sliding block (8), a sliding groove (10) is formed in the side edge of the spraying box (1), the connecting rod (9) horizontally penetrates through the sliding groove (10) and is fixed with a support plate (11) at the end, a plurality of springs (12) are fixed at the bottom of the support plate (11), a mounting plate (13) is fixed at the bottom of the plurality of springs (12), and a rotating shaft (14) is rotatably connected to the bottom of the mounting plate (13).

3. The spray machine for producing a piston rod according to claim 1, characterized in that The rotating device (6) comprises a servo motor (15) fixed at the bottom of the spraying box (1), and a rotating plate (16) is fixedly installed on the output shaft of the servo motor (15).

4. The spray machine for producing a piston rod according to claim 1, characterized in that The spraying assembly (5) comprises a material box (17) fixed at the edge of the bottom of the spraying box (1), a pump body (18) is fixedly arranged at the upper portion of the material box (17), a spraying hose (19) is connected to the pump body (18), and nozzles (20) are uniformly distributed on the spraying hose (19).

5. The spray machine for producing a piston rod according to claim 1, characterized in that The spraying box (1) is provided with a third air cylinder (21) at the upper end of the material box (17), an arc-shaped plate (22) is fixed at the end of the third air cylinder (21), and the spraying hose (19) is fixed to the arc-shaped plate (22).

6. The spray machine for producing a piston rod according to claim 1, characterized in that The end of the circular arc plate (3) is fixed with a rubber pad (23).

7. The spray machine for producing a piston rod according to claim 1, characterized in that Two support rods (24) are fixedly installed on the side edge of the spraying box (1), and a fan (25) is fixedly installed on the two support rods (24).

8. The spray machine for producing a piston rod according to claim 1, characterized in that A base (26) is fixedly installed at the bottom of the spraying box (1).