Roller coating mechanism of stator oil film coating device

By designing the roller coating mechanism of the stator oil film coating device, using polypropylene external material and PLC-controlled coating rollers, the problems of uneven manual coating and foreign matter residue were solved, achieving uniform coating and efficient coating of the stator surface.

CN223988657UActive Publication Date: 2026-03-13无锡隆盛新能源科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In current stator production, rust-preventive oil coating mainly relies on manual operation, which leads to uneven coating and easy foreign matter residue, affecting stator quality.

Method used

A roller coating mechanism for a stator oil film coating device is designed. It uses a wide-type air gripper connected to two coating rollers. The surface of the coating rollers is made of polypropylene material. The uniform application of anti-rust oil is achieved through a PLC controller, and a height adjustment component is set to adapt to stators of different sizes.

Benefits of technology

This method achieves uniform application of anti-rust oil to the stator surface, preventing the coating material from being snagged by the sharp edges of the stator, thus improving coating efficiency and quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223988657U_ABST
    Figure CN223988657U_ABST
Patent Text Reader

Abstract

The utility model discloses a roller coating mechanism of a stator oil film coating device, which comprises a horizontally arranged first connecting plate and a PLC (programmable logic controller), and a vertically arranged second connecting plate is mounted on the first connecting plate; a wide pneumatic claw is mounted on the left side of the upper part of the second connecting plate, the wide pneumatic claw comprises two clamping claws which are arranged in parallel up and down, and the clamping claws are respectively connected with the coating roller through pneumatic claw roller connecting pieces; when the wide pneumatic claw is in a clamping state, the upper coating roller is in contact with the inner peripheral side wall of the stator to be coated, and the lower coating roller is in contact with the outer peripheral side wall of the stator to be coated; according to the anti-rust oil coating device, the wide pneumatic claw is connected with the two coating rollers, so that anti-rust oil can be coated on the inner peripheral side and the outer peripheral side of the stator at the same time, the anti-rust oil can be coated more uniformly in cooperation with rotation of the stator, and the efficiency and the quality of coating the anti-rust oil on the surface of the stator are improved.
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Description

Technical Field

[0001] This utility model relates to the field of stator production equipment technology, specifically to a roller coating mechanism of a stator oil film coating device. Background Technology

[0002] The stator core is made of stator laminations formed by stamping silicon steel coils and then stacking them together. The keyways, small teeth, and other structural edges on the inner and outer circumferential walls of the stator are quite sharp. Currently, most rust-preventive oil coating processes are done manually. Operators use hand-held oil-soaked felt or coating rollers to apply rust-preventive oil to the inner and outer circumferential walls of the stator. The coating effect is not ideal, mainly due to the following two reasons: 1) The coating material, such as felt, can be snagged by the sharp edges of the inner and outer walls of the stator, resulting in foreign matter residue on the inner and outer walls of the stator, affecting the production quality of the stator; 2) Due to the subjective judgment of the operators during coating, the final rust-preventive oil coating is not uniform, and there is even a phenomenon of excessive rust-preventive oil accumulating in a certain area, affecting the quality of the stator oil film coating. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a roller coating mechanism for a stator oil film coating device, which can quickly complete the coating of anti-rust oil on the stator surface, avoid sharp edges on the stator surface from scratching the coating material and causing impurities to remain on the stator surface, and ensure the production quality of the stator.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A roller coating mechanism for a stator oil film coating device includes a horizontally arranged first connecting plate and a PLC controller. A vertically arranged second connecting plate is mounted on the first connecting plate. A wide-type air gripper is mounted on the upper left side of the second connecting plate, and a wide-type gripper control valve connected to the air inlet pipe of the wide-type air gripper is mounted on the upper right side of the second connecting plate. The controlled end of the wide-type air gripper control valve is connected to the output end of the PLC controller. The wide-type air gripper includes two grippers arranged side by side, which are connected to a coating roller through air gripper roller connectors. When the wide-type air gripper is in a clamping state, the upper coating roller contacts the inner peripheral sidewall of the stator to be coated, and the lower coating roller contacts the outer peripheral sidewall of the stator to be coated. The coating roller is connected to an oil storage tank through an oil pump, and the controlled end of the oil pump is connected to the output end of the PLC controller.

[0006] The roller coating mechanism of the stator oil film coating device described above includes a roller shaft, an oil storage box installed around the roller shaft, oil outlet holes evenly opened on the outer wall of the oil storage box, and an external roller material provided on the outer periphery of the oil storage box to absorb the rust-preventive oil flowing out of the oil outlet holes and apply it to the inner and outer periphery walls of the stator to be coated.

[0007] The roller coating mechanism of the stator oil film coating device described above uses polypropylene as the outer material of the roller.

[0008] In the aforementioned roller coating mechanism of a stator oil film coating device, the roller oil storage box has inner grooves at both ends. A first deep groove ball bearing, which is rotatably fitted to the roller shaft, is installed in the inner groove at the right end of the roller oil storage box. A shoulder is provided on the roller shaft located to the right of the first deep groove ball bearing to restrict the movement of the roller shaft. A second deep groove ball bearing, which is rotatably fitted to the roller shaft, is installed in the inner groove at the left end of the roller oil storage box. The roller shaft located to the left of the first deep groove ball bearing is fastened to the roller shaft.

[0009] The roller coating mechanism of the stator oil film coating device described above is further provided with a height adjustment component for adjusting the height of the coating roller between the roller shaft and the pneumatic gripper roller connector.

[0010] The roller coating mechanism of the stator oil film coating device described above includes a height adjustment component comprising a rotating shaft connector installed on the right side of the rotating shaft, and an open movable groove at the left end of the pneumatic gripper roller connector, wherein the rotating shaft connector is slidably installed in the movable groove; an adjusting bolt is threadedly connected to the side wall of the pneumatic gripper roller connector, and the bottom of the adjusting bolt penetrates through the side wall of the pneumatic gripper roller connector and connects to the rotating shaft connector.

[0011] In the roller coating mechanism of the stator oil film coating device described above, the rotating shaft connector is a square aluminum alloy part with a rotating shaft hole in the middle.

[0012] In the roller coating mechanism of the stator oil film coating device described above, an oil collection box is installed on the lower left side of the second connecting plate, and a groove is provided at the bottom of the second connecting plate. The right side of the oil collection box is connected to the second connecting plate through a metal connector passing through the groove.

[0013] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0014] This invention provides a roller coating mechanism for a stator oil film coating device. By connecting two coating rollers with a wide-type air gripper, it can simultaneously apply rust-preventive oil to the inner and outer circumferences of the stator. The rotation of the stator itself ensures more uniform application of the rust-preventive oil. At the same time, a layer of roller coating material made of polypropylene is provided on the surface of the coating rollers and contacts the surface of the stator. This avoids the roller coating material being affected by the sharp edges of the stator surface during the coating process, preventing impurities from remaining on the stator surface, thus improving the efficiency and quality of rust-preventive oil application on the stator surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the coating roller described in this utility model.

[0017] The components are: 1. First connecting plate, 2. Second connecting plate, 3. Oil collection box, 4. Metal connector, 5. Wide-type pneumatic gripper control valve, 6. Wide-type pneumatic gripper, 7. Clamping jaw, 8. Pneumatic gripper roller connector, 9. Coating roller, 10. Roller shaft, 11. Roller oil storage box, 12. Roller external material, 13. First deep groove ball bearing, 14. Second deep groove ball bearing, 15. Roller shaft fastener, 16. Oil outlet hole, 17. Movable groove, 18. Shaft connector, 19. Adjusting bolt. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] A roller coating mechanism for a stator oil film coating apparatus, such as Figures 1 to 2 As shown, it includes a horizontally arranged first connecting plate 1 and a PLC controller. A vertically arranged second connecting plate 2 is installed on the first connecting plate 1. A wide air gripper 6 is installed on the upper left side of the second connecting plate 2. The wide air gripper 6 includes two grippers 7 arranged side by side. The grippers 7 are connected to the coating roller 9 through the air gripper roller connector 8. The upper coating roller is used to coat the inner peripheral sidewall of the stator to be coated with an oil film, and the lower coating roller 9 is used to coat the outer peripheral sidewall of the stator to be coated with an oil film.

[0020] The coating roller 9 is connected to the oil storage tank via an oil pump, which is used to supply rust-preventive oil to the coating roller. The controlled end of the oil pump is connected to the output end of the PLC controller.

[0021] The lower left side of the second connecting plate 2 is equipped with an oil collection box 3 for collecting the applied rust-preventive oil. The bottom of the second connecting plate 2 is provided with a groove. The right side of the oil collection box 3 is connected to the second connecting plate 2 through a metal connector 4 passing through the groove, which facilitates the disassembly and replacement of the oil collection box 3.

[0022] A wide gripper control valve 5 is installed on the upper right side of the second connecting plate 2. The controlled end of the wide gripper control valve 5 is connected to the output end of the PLC controller. The wide gripper control valve 5 is connected to the air inlet pipe of the wide gripper 6. The PLC controller controls the opening and closing of the wide gripper control valve 5 to control the air pressure change inside the wide gripper 6, thereby realizing the clamping and releasing of the gripper 7.

[0023] The coating roller 9 includes a roller shaft 10, a roller oil storage box 11 is installed around the roller shaft 10, oil outlet holes 16 are evenly opened on the outer wall of the roller oil storage box 11, and roller external material 12 is provided on the outer periphery of the roller oil storage box 11, which can absorb the oil flowing out from the oil outlet holes 16 and apply it to the inner and outer periphery walls of the stator to be coated.

[0024] The outer coating material 12 of the roller is made of polypropylene to ensure that the outer coating material of the roller will not be snagged by the sharp structures on the inner and outer peripheral sidewalls of the stator during the coating process, so as not to cause part of the outer coating material of the roller to remain on the stator surface and affect the stator quality.

[0025] The roller oil storage box 11 has inner grooves at both ends. A first deep groove ball bearing 13 is installed in the inner groove at the right end of the roller oil storage box 11 and is rotatably fitted with the roller shaft 10. A shoulder is provided on the roller shaft 10 located to the right of the first deep groove ball bearing 13 to restrict the movement of the roller shaft 10.

[0026] A second deep groove ball bearing 14 is installed in the inner groove at the left end of the roller oil storage box 11 and is rotatably fitted with the roller shaft 10. The roller shaft 10 located to the left of the first deep groove ball bearing 14 is connected to the roller shaft fastener 15, thereby restricting the roller shaft 10 from moving to the right.

[0027] A height adjustment component for adjusting the height of the coating roller 9 is also provided between the roller shaft 10 and the pneumatic gripper roller connector 8.

[0028] The height adjustment assembly includes a shaft connector 18 installed on the right side of the shaft 10. The shaft connector 18 is a square aluminum alloy part with a shaft hole in the middle. The pneumatic gripper roller connector 8 has an open movable groove 17 at its left end. The shaft connector 18 is slidably installed in the movable groove 17.

[0029] The side wall of the pneumatic gripper roller connector 8 is threaded with an adjusting bolt 19. The bottom of the adjusting bolt 19 passes through the side wall of the pneumatic gripper roller connector 8 and is connected to the rotating shaft connector 18. By rotating the adjusting bolt, the position of the roller rotating shaft 10 is adjusted, thereby adjusting the height of the coating roller 9 to accommodate stators of different sizes.

[0030] This invention provides a roller coating mechanism for a stator oil film coating device. By connecting two coating rollers with a wide-type air gripper, it can simultaneously apply rust-preventive oil to the inner and outer circumferences of the stator. The rotation of the stator itself ensures more uniform application of the rust-preventive oil. At the same time, a layer of roller coating material made of polypropylene is provided on the surface of the coating rollers and contacts the surface of the stator. This avoids the roller coating material being affected by the sharp edges of the stator surface during the coating process, preventing impurities from remaining on the stator surface, thus improving the efficiency and quality of rust-preventive oil application on the stator surface.

Claims

1. A roll coating mechanism of a stator film coating apparatus, characterized by: The utility model relates to a kind of coating roller and coating device, including horizontally arranged first connecting plate (1) and PLC controller, first connecting plate (1) is installed with vertically arranged second connecting plate (2);The upper left side of second connecting plate (2) is installed with wide type air claw (6), the right side of second connecting plate (2) is installed with wide type claw control valve (5) being connected with the air inlet pipe of wide type air claw (6), the controlled end of wide type claw control valve (5) is connected with the output end of PLC controller;Wide type air claw (6) includes two claws (7) being arranged in parallel in upper and lower, and claw (7) is connected with coating roller (9) by air claw roller connecting piece (8) respectively;When wide type air claw (6) is in clamping state, upper coating roller (9) is contacted with the inner circumferential side wall of the stator to be coated, and lower coating roller (9) is contacted with the outer circumferential side wall of the stator to be coated;Coating roller (9) is communicated with oil storage tank by oil pump, and the controlled end of oil pump is connected with the output end of PLC controller.

2. A roll coating mechanism for a stator oil film coating apparatus according to claim 1, characterized in that: The coating roller (9) includes a roller shaft (10), a roller oil storage box (11) is installed on the side of the roller shaft (10), a plurality of oil outlet holes (16) are uniformly arranged on the outer wall of the roller oil storage box (11), and a roller outer attached material (12) is arranged on the outer side of the roller oil storage box (11) to absorb and apply the rust-proof oil flowing out of the oil outlet holes (16) to the inner circumferential side wall and the outer circumferential side wall of the stator to be coated.

3. A roll coating mechanism for a stator oil film coating apparatus according to claim 2, characterized in that: The roller outer attached material (12) is made of polypropylene material.

4. A roll coating mechanism for a stator oil film coating apparatus according to claim 2, characterized in that: The roller oil storage box (11) is provided with an inner groove at each end, a first deep groove ball bearing (13) is installed in the inner groove at the right end of the roller oil storage box (11) and is rotatably connected with the roller shaft (10), and a shaft shoulder is arranged on the roller shaft (10) to the right of the first deep groove ball bearing (13) to limit the movement of the roller shaft (10). A second deep groove ball bearing (14) is installed in the inner groove at the left end of the roller oil storage box (11) and is rotatably connected with the roller shaft (10), and the roller shaft (10) to the left of the second deep groove ball bearing (14) is connected with a roller shaft fastener (15).

5. A roll coating mechanism for a stator oil film coating apparatus according to claim 2, wherein: The height adjustment assembly is arranged between the roller shaft (10) and the air claw roller connecting piece (8) to adjust the height of the coating roller (9).

6. A roll coating mechanism for a stator film coating apparatus according to claim 5, wherein: The height adjustment assembly includes a shaft connecting piece (18) installed on the right end of the roller shaft (10), an open movable groove (17) is arranged at the left end of the air claw roller connecting piece (8), and the shaft connecting piece (18) is slidably installed in the movable groove (17). An adjusting bolt (19) is threadedly connected to the side wall of the air claw roller connecting piece (8), and the bottom of the adjusting bolt (19) penetrates the side wall of the air claw roller connecting piece (8) and is connected with the shaft connecting piece (18).

7. A roll coating mechanism for a stator film coating apparatus according to claim 6, wherein: The shaft connecting piece (18) is a square aluminum alloy piece with a shaft hole arranged in the middle.

8. A roll coating mechanism for a stator film coating apparatus according to claim 1, wherein: An oil collecting box (3) is installed on the left side of the second connecting plate (2), and a groove is arranged at the bottom of the second connecting plate (2). The oil collecting box (3) is connected with the second connecting plate (2) by a metal connecting piece (4) penetrating through the groove.