An automatically cleanable resistor coating equipment

By designing a resistor coating equipment with a turntable and cleaning components, uniform coating and automatic cleaning of wire-wound resistors were achieved, solving the problems of uneven coating and manual cleaning, and improving coating efficiency and automation.

CN224423202UActive Publication Date: 2026-06-30JIANHU TUOXIN ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANHU TUOXIN ELECTRONICS CO LTD
Filing Date
2025-05-11
Publication Date
2026-06-30

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Abstract

This utility model belongs to the field of resistive coating technology, specifically disclosing an automatically cleanable resistive coating device, including a fixed base; a circular groove is formed at the center of the surface of the fixed base, and a turntable is arranged inside the groove. A drive shaft is fixedly connected to the center of the bottom surface of the turntable, and the other end of the drive shaft is fixedly connected to the output end of a drive motor. The drive motor is installed and fixed inside the fixed base. The top surface of the turntable is conical, and a boss is fixedly installed at the center of the turntable. This utility model is equipped with a cleaning component. After the resistive coating is completed, the surface of the turntable and the inner side of the annular partition can be sprayed and cleaned by the cooperation of a water tank, a water spray pipe, a first spray head, and a second spray head to remove residual coating. The sprayed cleaning liquid mixes with the coating and flows into the recycling tank through the gap between adjacent positioning rods for recycling, thereby realizing automatic cleaning after coating.
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Description

Technical Field

[0001] This utility model relates to the field of resistor coating technology, specifically to an automatically cleanable resistor coating device. Background Technology

[0002] Wire-wound resistors are constructed by winding resistance wire around an insulating frame. The resistance wire is generally made of alloys such as nickel-chromium or manganese-copper, which have a certain resistivity. The insulating frame is made of materials such as ceramics, plastics, or metals coated with an insulating layer, and can be in various shapes such as tubular or flat. The surface of the wire-wound resistor is coated with protective varnish or glass glaze.

[0003] Existing spraying equipment typically places the wire-wound resistor on a conveyor belt for simultaneous conveying and spraying, achieving an automated spraying effect. However, when the wire-wound resistor is conveyed on the conveyor belt, some sides may not be sprayed, requiring a second coating process, resulting in low coating efficiency. Furthermore, after the existing spraying equipment has finished coating, manual cleaning of residual paint is required, leading to a long interval between the two coating processes, further reducing coating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an automatically cleanable resistor coating device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatically cleanable resistance coating device, comprising a fixed base; a circular groove is formed at the center of the surface of the fixed base, a turntable is arranged inside the circular groove, a drive shaft is fixedly connected to the center of the bottom surface of the turntable, the other end of the drive shaft is fixedly connected to the output end of a drive motor, the drive motor is installed and fixed inside the fixed base, the top surface of the turntable is a conical surface, a boss is fixedly installed at the center of the turntable, a positioning component is provided on the surface of the turntable, and a coating component is provided on the surface of the boss.

[0006] Preferably, the positioning component includes a fixing rod; the turntable surface has through holes distributed in a ring, and a sleeve is provided on the turntable surface at the position corresponding to the through holes. The sleeve is vertically arranged and rotatably connected to the turntable surface. The fixing rod is vertically fixed to the sleeve surface, and an insertion hole is opened at the center of the top surface of the fixing rod. A connecting shaft is fixedly connected to the bottom surface of the sleeve at the position corresponding to the through holes. The other end of the connecting shaft passes through the through holes and is fixedly connected to the center of the gear.

[0007] Preferably, the bottom surface of the turntable is provided with a toothed ring, the inner side of the toothed ring is provided with a meshing structure, the toothed ring is meshed with a gear through the meshing structure, and positioning rods are evenly distributed on the surface of the toothed ring, the other end of the positioning rods is fixedly connected to the inner wall of the circular groove.

[0008] Preferably, the coating assembly includes a spray pipe; an annular partition is vertically fixed at the position corresponding to the circular groove on the surface of the fixed base, a top plate is horizontally fixed at the top of the annular partition, a spray pipe is provided inside the boss, and the bottom end of the spray pipe is connected to the boss through a bearing, the top end of the spray pipe is in contact with the bottom surface of the top plate, a liquid storage tank is fixedly installed at the center of the surface of the top plate, a micro water pump is connected to one side of the liquid storage tank through a pipe, the other end of the micro water pump is connected to the inside of the spray pipe, and a plurality of atomizing nozzles are evenly distributed on the surface of the spray pipe.

[0009] Preferably, a cleaning component is provided on the top surface of the nozzle, the cleaning component including a fixing ring; the fixing ring is sleeved on the top of the nozzle, and a support ring is fixed on the surface of the nozzle corresponding to the bottom surface of the fixing ring, the fixing ring is disposed on the surface of the support ring, and the fixing ring is rotatably connected to both the nozzle and the support ring, water spray pipes are evenly distributed on the surface of the fixing ring, first nozzles are evenly distributed on the bottom surface of the water spray pipes, and second nozzles are provided at the ends of the water spray pipes.

[0010] Preferably, a water storage tank is provided on the top surface of the top plate, and the bottom end of the water storage tank is connected to the water spray pipe through a hose; a support plate is provided on the bottom surface of the drive motor, and connecting rods are horizontally and symmetrically fixed at both ends of the support plate. The other end of the connecting rod is fixedly connected to the inner wall of the circular groove. The drive motor is installed and fixed on the surface of the support plate, and a recycling trough is provided at the bottom of the circular groove.

[0011] Preferably, the top plate surface has symmetrical openings, and a cover plate structure is provided at the corresponding opening positions on the top plate surface, and the cover plate structure is rotatably connected to the top plate surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the cooperation between the turntable, positioning component and drive motor, enables the drive motor to drive the turntable to rotate, thereby causing the resistor fixed on the surface of the turntable to revolve. Through the meshing connection between the gear and the gear ring set on the bottom surface of the turntable, the gear can rotate on its own axis. Thus, through the connecting shaft, sleeve and fixing rod, the resistor can be driven to rotate on its own axis. Through the rotation and revolution of the resistor, uniform coating can be achieved on the surface of the resistor in only one coating process, thereby improving coating efficiency.

[0014] 2. This utility model is equipped with a cleaning component. After the resistance coating is completed, the surface of the turntable and the inner side of the annular partition can be sprayed and cleaned by the cooperation of the water storage tank, the water spray pipe, the first spray head and the second spray head to remove residual paint. The sprayed cleaning liquid mixes with the paint and flows into the recycling tank through the gap between the adjacent positioning rods for recycling, thereby realizing automatic cleaning after the coating is completed. Attached Figure Description

[0015] Figure 1 An overall three-dimensional structural diagram of an automatically cleanable resistor coating device provided by this utility model;

[0016] Figure 2 A top view of an automatically cleanable resistor coating device provided by this utility model;

[0017] Figure 3 for Figure 2 Sectional view at point AA;

[0018] Figure 4 A schematic diagram of the connection between the gear and the gear ring in an automatically cleanable resistive coating device provided by this utility model.

[0019] In the diagram: 1. Fixed base; 2. Circular groove; 3. Turntable; 4. Drive shaft; 5. Drive motor; 6. Boss; 7. Fixing rod; 8. Sleeve; 9. Cover plate structure; 10. Connecting shaft; 11. Gear; 12. Gear ring; 13. Positioning rod; 14. Liquid storage tank; 15. Miniature water pump; 16. Spray pipe; 17. Atomizing nozzle; 18. Fixing ring; 19. Support ring; 20. First nozzle; 21. Second nozzle; 22. Water storage tank; 23. Spray pipe; 24. Support plate; 25. Connecting rod; 26. Recovery tank; 27. Top plate; 28. Annular partition. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Please see Figures 1-4 This utility model provides a technical solution: an automatically cleanable resistor coating device, including a fixed base 1; a circular groove 2 is formed at the center of the surface of the fixed base 1, a turntable 3 is arranged inside the circular groove 2, a drive shaft 4 is fixedly connected to the center of the bottom surface of the turntable 3, the other end of the drive shaft 4 is fixedly connected to the output end of the drive motor 5, the drive motor 5 is arranged inside the fixed base 1, the top surface of the turntable 3 is a conical surface, a boss 6 is fixedly installed at the center of the turntable 3, a positioning component is arranged on the surface of the turntable 3, and a coating component is arranged on the surface of the boss 6;

[0024] After the drive motor 5 is started, the drive motor 5 drives the drive shaft 4 to rotate, and the drive shaft 4 drives the turntable 3 to rotate. Setting the top surface of the turntable 3 as a cone surface can help with the recycling and cleaning of the paint.

[0025] The positioning component includes a fixing rod 7; the surface of the turntable 3 has through holes distributed in a ring, and a sleeve 8 is provided on the surface of the turntable 3 at the position corresponding to the through holes. The sleeve 8 is vertically arranged and rotatably connected to the surface of the turntable 3. The fixing rod 7 is vertically fixed to the surface of the sleeve 8. An insertion hole is opened at the center of the top surface of the fixing rod 7. A connecting shaft 10 is fixedly connected to the bottom surface of the sleeve 8 at the position corresponding to the through hole. The other end of the connecting shaft 10 passes through the through hole and is fixedly connected to the center of the gear 11.

[0026] The bottom surface of the turntable 3 is provided with a toothed ring 12, and the inner side of the toothed ring 12 is provided with a meshing structure. The toothed ring 12 is meshed with the gear 11 through the meshing structure. Positioning rods 13 are evenly distributed on the surface of the toothed ring 12, and the other end of the positioning rods 13 is fixedly connected to the inner wall of the circular groove 2.

[0027] When coating the resistor, first insert the lead at one end of the resistor into the socket on the top surface of the fixing rod 7 to fix the resistor to the fixing rod 7. Then, when the drive motor 5 is started, the drive motor 5 can drive the turntable 3 to rotate, so that the resistor fixed on the surface of the turntable 3 will revolve. At the same time, through the meshing connection between the gear 11 and the gear ring 12 set on the bottom surface of the turntable 3, the gear 11 can rotate, so that the resistor can be driven to rotate through the connecting shaft 10, the sleeve 8 and the fixing rod 7.

[0028] The coating assembly includes a spray pipe 16; an annular partition 28 is vertically fixed on the surface of the fixed base 1 at the position corresponding to the circular groove 2, and a top plate 27 is horizontally fixed at the top of the annular partition 28; a spray pipe 16 is provided inside the boss 6, and the bottom end of the spray pipe 16 is connected to the boss 6 through a bearing; the top end of the spray pipe 16 contacts the bottom surface of the top plate 27; a liquid storage tank 14 is installed and fixed at the center of the surface of the top plate 27; a micro water pump 15 is connected to one side of the liquid storage tank 14 through a pipe; the other end of the micro water pump 15 is connected to the inside of the spray pipe 16; and a plurality of atomizing nozzles 17 are evenly distributed on the surface of the spray pipe 16.

[0029] The liquid storage tank 14 stores the paint. The paint enters the micro water pump 15 through the pipeline and is pumped into the nozzle 16 by the micro water pump 15. Then it is sprayed out from the atomizing nozzle 17 on the surface of the nozzle 16, thereby coating the resistor fixed on the surface of the fixing rod 7. The nozzle 16 is configured to be rotatably connected to the boss 6, so that when the turntable 3 and the boss 6 rotate, the nozzle 16 will not be rotated.

[0030] A cleaning component is provided on the top surface of the nozzle 16. The cleaning component includes a fixing ring 18. The fixing ring 18 is sleeved on the top of the nozzle 16. A support ring 19 is fixed on the surface of the nozzle 16 at a position corresponding to the bottom surface of the fixing ring 18. The fixing ring 18 is disposed on the surface of the support ring 19, and the fixing ring 18 is fixedly connected to both the nozzle 16 and the support ring 19. Water spray pipes 23 are evenly distributed on the surface of the fixing ring 18. First nozzles 20 are evenly distributed on the bottom surface of the water spray pipes 23. Second nozzles 21 are provided at the ends of the water spray pipes 23.

[0031] A water storage tank 22 is provided on the top surface of the top plate 27, and the bottom end of the water storage tank 22 is connected to the water spray pipe 23 through a hose; a support plate 24 is provided on the bottom surface of the drive motor 5, and connecting rods 25 are horizontally and symmetrically fixed at both ends of the support plate 24. The other end of the connecting rod 25 is fixedly connected to the inner wall of the circular groove 2. The drive motor 5 is installed and fixed on the surface of the support plate 24, and a recycling trough 26 is provided at the bottom of the circular groove 2.

[0032] After the resistance coating is completed, the cleaning liquid in the water tank 22 enters the spray pipe 23 through the hose, and is then sprayed out by the first nozzle 20 and the second nozzle 21 respectively, thereby cleaning the surface of the turntable 3 and the surface of the annular partition 28. The cleaning water can flow into the recycling tank 26 through the gap between the adjacent positioning rods 13 for recycling. The recycling tank 26 is detachably connected to the fixed base 1, so that the recycling tank 26 can be cleaned.

[0033] The top plate 27 has symmetrical openings on its surface, and a cover plate structure 9 is provided on the surface of the top plate 27 at the corresponding opening positions. The cover plate structure 9 is rotatably connected to the surface of the top plate 27.

[0034] like Figures 1-4 As shown, this utility model discloses an automatically cleanable resistor coating device. During operation, the cover plate structure 9 is first rotated open. When coating the resistor, the lead at one end of the resistor is inserted into the insertion hole on the top surface of the fixing rod 7, fixing the resistor to the fixing rod 7. Then, the drive motor 5 is started, which drives the turntable 3 to rotate, causing the resistor fixed to the surface of the turntable 3 to revolve. Simultaneously, through the meshing connection between the gear 11 and the gear ring 12 on the bottom surface of the turntable 3, the gear 11 rotates, thus driving the resistor to rotate via the connecting shaft 10, sleeve 8, and fixing rod 7. Then, the micro water pump 15 is started, using a micro... The water pump 15 pumps the paint from the storage tank into the spray pipe 16, and then sprays it out from the atomizing nozzle 17 on the surface of the spray pipe 16, thereby coating the resistor fixed to the surface of the fixing rod 7. After the resistor is coated, the cleaning liquid in the water tank 22 enters the spray pipe 23 through the hose, and is then sprayed out by the first nozzle 20 and the second nozzle 21 respectively, thereby cleaning the surface of the turntable 3 and the surface of the annular partition 28. The cleaning water can flow into the recycling tank 26 through the gap between the adjacent positioning rods 13 for recycling. The recycling tank 26 is detachably connected to the fixing base 1, so that the recycling tank 26 can be cleaned, thereby realizing the coating and cleaning process of the resistor.

[0035] It is worth noting that the entire device is controlled by a master control button. Since the device matched with the control button is a common device and belongs to existing common knowledge technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatically cleanable resistor coating equipment, characterized in that: Includes a fixed base (1); a circular groove (2) is provided in the center of the surface of the fixed base (1), a turntable (3) is provided inside the circular groove (2), a drive shaft (4) is fixedly connected to the center of the bottom surface of the turntable (3), the other end of the drive shaft (4) is fixedly connected to the output end of the drive motor (5), the drive motor (5) is installed and fixed inside the fixed base (1), the top surface of the turntable (3) is a conical surface, a boss (6) is installed and fixed in the center of the turntable (3), a positioning component is provided on the surface of the turntable (3), and a coating component is provided on the surface of the boss (6).

2. The automatically cleanable resistor coating equipment according to claim 1, characterized in that: The positioning component includes a fixing rod (7); the surface of the turntable (3) has through holes distributed in a ring, and a sleeve (8) is provided on the surface of the turntable (3) at the position corresponding to the through hole. The sleeve (8) is vertically arranged and rotatably connected to the surface of the turntable (3). The fixing rod (7) is vertically fixed to the surface of the sleeve (8). An insertion hole is opened at the center of the top surface of the fixing rod (7). A connecting shaft (10) is fixedly connected to the bottom surface of the sleeve (8) at the position corresponding to the through hole. The other end of the connecting shaft (10) passes through the through hole and is fixedly connected to the center of the gear (11).

3. The automatically cleanable resistor coating equipment according to claim 2, characterized in that: The bottom surface of the turntable (3) is provided with a toothed ring (12), and the inner side of the toothed ring (12) is provided with a meshing structure. The toothed ring (12) is meshed with the gear (11) through the meshing structure. Positioning rods (13) are evenly distributed on the surface of the toothed ring (12), and the other end of the positioning rods (13) is fixedly connected to the inner wall of the circular groove (2).

4. The automatically cleanable resistor coating equipment according to claim 1, characterized in that: The coating assembly includes a spray pipe (16); a ring-shaped partition (28) is vertically fixed on the surface of the fixed base (1) at the position corresponding to the circular groove (2), and a top plate (27) is horizontally fixed at the top of the ring-shaped partition (28). The spray pipe (16) is provided inside the boss (6), and the bottom end of the spray pipe (16) is connected to the boss (6) through a bearing. The top end of the spray pipe (16) is in contact with the bottom surface of the top plate (27). A liquid storage tank (14) is installed and fixed at the center of the surface of the top plate (27). A micro water pump (15) is connected to one side of the liquid storage tank (14) through a pipe. The other port of the micro water pump (15) is connected to the inside of the spray pipe (16). Several atomizing nozzles (17) are evenly distributed on the surface of the spray pipe (16).

5. The automatically cleanable resistor coating equipment according to claim 4, characterized in that: A cleaning component is provided on the top surface of the nozzle (16), the cleaning component includes a fixing ring (18); the fixing ring (18) is sleeved on the top of the nozzle (16), a support ring (19) is fixed on the surface of the nozzle (16) at the position corresponding to the bottom surface of the fixing ring (18), the fixing ring (18) is provided on the surface of the support ring (19), and the fixing ring (18) is rotatably connected to both the nozzle (16) and the support ring (19), water spray pipes (23) are evenly distributed on the surface of the fixing ring (18), first nozzles (20) are evenly distributed on the bottom surface of the water spray pipes (23), and a second nozzle (21) is provided at the end of the water spray pipes (23).

6. The automatically cleanable resistor coating equipment according to claim 5, characterized in that: The top surface of the top plate (27) is provided with a water storage tank (22), and the bottom end of the water storage tank (22) is connected to the water spray pipe (23) through a hose; the bottom surface of the drive motor (5) is provided with a support plate (24), and the two ends of the support plate (24) are horizontally and symmetrically fixed with connecting rods (25). The other end of the connecting rods (25) is fixedly connected to the inner wall of the circular groove (2). The drive motor (5) is installed and fixed on the surface of the support plate (24). The bottom of the circular groove (2) is provided with a recycling trough (26).

7. The automatically cleanable resistor coating equipment according to claim 6, characterized in that: The top plate (27) has symmetrical openings on its surface, and a cover plate structure (9) is provided on the surface of the top plate (27) at the corresponding opening position. The cover plate structure (9) is rotatably connected to the surface of the top plate (27).