A high efficiency coating apparatus for a fuse resistor

CN224823048UActive Publication Date: 2026-10-09HUAIAN HUAZHICHUANG ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522405603.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-10-09
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

圆柱形熔断电阻器在使用过程中需要进行喷涂处理,通常采用喷涂设备完成,然而,在现有的圆柱形工件喷涂设备中,大多仍依赖人工手动夹持工件,操作时,工人需逐一将工件对准卡接座,调整位置后手动固定,这种方式不仅耗时费力,还容易因手部力度不均导致夹持过松或过紧,夹持过松会使工件在转动过程中发生偏移甚至掉落,而夹持过紧则可能压伤工件表面,此外,频繁的手动操作效率低下,也显著增加了工人的劳动强度和疲劳感

Benefits of technology

1、本实用新型中,采用电动推杆驱动圆盘,结合滑块、第一弹簧与弧形夹构成自适应夹持组件,无需人工对准与手动调整,该设计不仅能有效避免因夹持力度不均导致的工件偏移、掉落或表面压伤,还可兼容不同直径的圆柱形熔断电阻器,实现柔性适配,同时,由第一伺服电机为转轴提供精确动力,确保工件匀速稳定旋转,为后续均匀喷涂奠定基础,涂料储存方面,通过储存箱与带密封盖的进料管配合,实现涂料的集中存储与挥发控制,有效防止污染,提升物料管理的安全性与便捷性。

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Abstract

The utility model provides a kind of fusing resistor efficient coating equipment, it is related to resistor field, including fixed mechanism, the outer wall fixed mounting of fixed mechanism has spraying mechanism;The fixed mechanism includes bottom plate, in the utility model, adopt electric push rod drive disc, combine slider, first spring and arc clamp to constitute self-adapting clamping assembly, without artificial alignment and manual adjustment, this design not only can effectively avoid the workpiece deviation, drop or surface bruise caused by uneven clamping force, also can be compatible with different diameter cylindrical fusing resistor, realize flexible adaptation, simultaneously, by first servo motor accurate power is provided for pivot, ensure that workpiece uniform speed steady rotation, lay foundation for subsequent uniform spraying, in the aspect of coating storage, by storage box and the cooperation of feed pipe with sealing cover, realize the centralized storage and volatile control of coating, effectively prevent pollution, improve the security and convenience of material management.
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Description

Technical Field

[0001] This utility model relates to the field of resistors, and in particular to a high-efficiency coating equipment for fusible resistors. Background Technology

[0002] Resistors are one of the most basic components in electronic circuits. Their main functions are to limit current, divide voltage, shunt current, and regulate signal levels.

[0003] The high-efficiency coating equipment for fusible resistors is an automated device specifically designed for surface coating treatment of fusible resistors.

[0004] The existing high-efficiency coating equipment for fusible resistors has the following shortcomings: Cylindrical fusible resistors require spray coating during use, which is usually done using spray coating equipment. However, most existing spray coating equipment for cylindrical workpieces still relies on manual clamping of the workpieces. During operation, workers need to align each workpiece with the clamping seat, adjust the position, and then manually fix it. This method is not only time-consuming and labor-intensive, but also prone to uneven hand force, resulting in clamping that is too loose or too tight. If the clamping is too loose, the workpiece may shift or even fall during rotation, while if the clamping is too tight, it may damage the surface of the workpiece. In addition, frequent manual operation is inefficient and significantly increases the labor intensity and fatigue of workers. Utility Model Content

[0005] This invention can not only effectively avoid workpiece displacement, falling or surface damage caused by uneven clamping force, but also be compatible with cylindrical fusible resistors of different diameters, achieving flexible adaptation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency coating equipment for fusible resistors, comprising a fixing mechanism, wherein a spraying mechanism is fixedly installed on the outer wall of the fixing mechanism; the fixing mechanism includes a base plate, a set of upright plates are fixedly connected to the top of the base plate, a set of rotating shafts are movably inserted into the inner wall of the upright plates, a set of electric push rods are fixedly installed on the outer wall of the rotating shafts, a set of discs are fixedly connected to the shaft end of the electric push rods, sliders are slidably connected to the inner wall of each disc, a first spring is fixedly connected to the outer wall of each slider, a limiting rod is fixedly connected to the inner wall of each disc, and an arc-shaped clamp is fixedly connected to the outer wall of each slider. Through the above components, the cylindrical fusible resistors are automatically clamped without the need for manual alignment and adjustment of the clamping seat.

[0007] Preferably, a PLC controller is fixedly installed on the outer wall of one of the upright plates, a collection groove is opened at the bottom of the inner wall of the base plate, and a set of guide plates is fixedly connected to the inner wall of the upright plate. The PLC controller can integrate the control logic of each component of the equipment and realize the digital adjustment of parameters.

[0008] Preferably, a set of first servo motors is fixedly installed on the outer wall of the upright plate, a storage box is fixedly connected to the top of the bottom plate, a feed pipe is fixedly connected to the outer wall of the storage box, a sealing cap is threadedly connected to the inner wall of the feed pipe, the output end of the first servo motor is fixedly connected to one end of the rotating shaft, one end of the first spring is fixedly connected to the inner wall of the disc, and the other end of the first spring is fixedly connected to the outer wall of the slider. The storage box, together with the feed pipe with the sealing cap, can realize the centralized storage of paint and prevent paint from evaporating or becoming contaminated through the sealing cap.

[0009] Preferably, the outer wall of each limiting rod is fitted with a second spring, and the outer wall of each arc-shaped clamp is fixedly connected with a silicone insulating pad. The addition of a second spring to the outside of the limiting rod forms a double elastic force with the first spring. The two work together to drive the slider and the arc-shaped clamp to apply sufficient clamping force to the fusible resistor.

[0010] Preferably, the spraying mechanism includes a fixed plate, a lead screw is movably inserted into the inner wall of the fixed plate, a transverse block is threaded through the outer wall of the lead screw, a second servo motor is fixedly installed on the outer wall of the fixed plate, the output end of the second servo motor is fixedly connected to one end of the lead screw, the second servo motor drives the lead screw to rotate, causing the transverse block to move at a constant speed along the lead screw, thereby causing the atomizing nozzle to move synchronously.

[0011] Preferably, an encoder is fixedly installed on the inner wall of the fixed plate, and the outer wall of the encoder is fixedly connected to the other end of the lead screw. The encoder is connected to the lead screw, which can monitor the rotation angle of the lead screw in real time, thereby accurately calculating the moving distance and position of the transverse block and realizing the precise positioning of the atomizing nozzle.

[0012] Preferably, a connecting plate is fixedly connected to the top of the transverse block, and a spray pump is fixedly installed on the top of the connecting plate. The input end of the spray pump is fixedly connected to a telescopic corrugated pipe, an atomizing nozzle is fixedly installed on the inner wall of the connecting plate, and a conveying pipe is fixedly connected to the output end of the spray pump. The conveying pipe is connected to the inside of the atomizing nozzle, and the telescopic corrugated pipe is connected to the inside of the storage tank. The spray pump is connected to the fixed storage tank through the telescopic corrugated pipe. When the transverse block drives the spray pump to move left and right, the corrugated pipe can freely extend and retract, without pipe entanglement or pulling problems, ensuring continuous and stable delivery of paint.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, an electric push rod drives the disc, which, combined with a slider, a first spring, and an arc-shaped clamp, forms an adaptive clamping assembly. No manual alignment or adjustment is required. This design not only effectively prevents workpiece displacement, dropping, or surface damage caused by uneven clamping force, but also allows for compatibility with cylindrical fusible resistors of different diameters, achieving flexible adaptation. Simultaneously, a first servo motor provides precise power to the rotating shaft, ensuring uniform and stable rotation of the workpiece, laying the foundation for subsequent uniform spraying. Regarding paint storage, a storage box combined with a sealed feed pipe enables centralized storage and evaporation control of the paint, effectively preventing contamination and improving the safety and convenience of material management.

[0014] 2. In this utility model, the spraying mechanism is driven by a second servo motor to drive the lead screw, which in turn drives the transverse block and the atomizing nozzle to move at a constant speed. With the help of an encoder, the positioning is provided in real time to ensure the accurate position of the atomizing nozzle. The paint conveying system uses a telescopic corrugated pipe to connect the spraying pump and the fixed storage box. It can freely extend and retract with the reciprocating motion of the nozzle, effectively avoiding pipeline interference and ensuring a stable supply of paint. The equipment integrates a PLC controller to realize digital control of process parameters, which significantly reduces human error. At the same time, it is equipped with a collection tank and a guide plate to recover excess paint, reduce material waste, and improve resource utilization. Attached Figure Description

[0015] Figure 1 This utility model provides a perspective view of the main structure of a high-efficiency coating equipment for fusible resistors. Figure 2 An enlarged perspective view of the bottom plate connection structure in a high-efficiency coating equipment for fusible resistors is provided for this utility model. Figure 3 An enlarged perspective view of the structure connecting the storage box in a high-efficiency coating equipment for fusible resistors is provided for this utility model. Figure 4 An enlarged perspective view of the arc-shaped clamp connection structure in a high-efficiency coating equipment for fusible resistors is provided for this utility model. Figure 5 This utility model presents an enlarged perspective view of the structure connecting the fixed plate in a high-efficiency coating equipment for fusible resistors.

[0016] Legend: 1. Fixing mechanism; 101. Base plate; 102. Collection tank; 103. Guide plate; 104. PLC controller; 105. Vertical plate; 106. First servo motor; 107. Electric push rod; 108. Disc; 109. Rotating shaft; 110. Feed pipe; 111. Storage box; 112. Silicone insulating pad; 113. Arc clamp; 114. Limiting rod; 115. Second spring; 116. Slider; 117. First spring; 2. Spraying mechanism; 201. Fixing plate; 202. Second servo motor; 203. Telescopic corrugated pipe; 204. Horizontal moving block; 205. Spraying pump; 206. Lead screw; 207. Encoder; 208. Conveying pipe; 209. Connecting plate; 210. Atomizing nozzle. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Please see Figures 1-5 This utility model provides a technical solution: a high-efficiency coating equipment for fusible resistors, including a fixing mechanism 1, with a spraying mechanism 2 fixedly installed on the outer wall of the fixing mechanism 1; the fixing mechanism 1 includes a base plate 101, a set of upright plates 105 fixedly connected to the top of the base plate 101, a set of rotating shafts 109 movably inserted into the inner wall of the upright plates 105, a set of electric push rods 107 fixedly installed on the outer wall of the rotating shafts 109, a set of discs 108 fixedly connected to the shaft end of the electric push rods 107, sliders 116 slidably connected to the inner wall of each disc 108, a first spring 117 fixedly connected to the outer wall of each slider 116, a limiting rod 114 fixedly connected to the inner wall of each disc 108, and an arc-shaped clamp 113 fixedly connected to the outer wall of each slider 116. Through the above components, the cylindrical fusible resistors are automatically clamped without the need for manual alignment and adjustment of the clamping seat.

[0020] like Figure 2 As shown, a PLC controller 104 is fixedly installed on the outer wall of one of the upright plates 105, a collection groove 102 is opened at the bottom of the inner wall of the base plate 101, and a set of guide plates 103 are fixedly connected to the inner wall of the upright plate 105. The PLC controller 104 can integrate the control logic of each component of the equipment and realize the digital adjustment of parameters.

[0021] like Figure 3 and Figure 4 As shown, a set of first servo motors 106 are fixedly installed on the outer wall of the upright plate 105. A storage box 111 is fixedly connected to the top of the base plate 101. A feed pipe 110 is fixedly connected to the outer wall of the storage box 111. A sealing cap is threadedly connected to the inner wall of the feed pipe 110. The output end of the first servo motor 106 is fixedly connected to one end of the rotating shaft 109. One end of the first spring 117 is fixedly connected to the inner wall of the disc 108. The other end of the first spring 117 is fixedly connected to the outer wall of the slider 116. The storage box 111, in conjunction with the feed pipe 110 with a sealing cap, can achieve centralized storage of paint and prevent paint from evaporating or becoming contaminated through the sealing cap.

[0022] like Figure 3 As shown, the outer wall of the limiting rod 114 is fitted with a second spring 115, and the outer wall of the arc-shaped clamp 113 is fixedly connected with a silicone insulating pad 112. The addition of a second spring 115 to the outside of the limiting rod 114 forms a double elastic force with the first spring 117. The two work together to drive the slider 116 and the arc-shaped clamp 113 to apply sufficient clamping force to the fusible resistor.

[0023] like Figure 5 As shown, the spraying mechanism 2 includes a fixed plate 201. A lead screw 206 is movably inserted into the inner wall of the fixed plate 201. A transverse block 204 is threaded through the outer wall of the lead screw 206. A second servo motor 202 is fixedly installed on the outer wall of the fixed plate 201. The output end of the second servo motor 202 is fixedly connected to one end of the lead screw 206. The second servo motor 202 drives the lead screw 206 to rotate, thereby causing the transverse block 204 to move at a constant speed along the lead screw 206, and thus causing the atomizing nozzle 210 to move synchronously.

[0024] like Figure 5 As shown, an encoder 207 is fixedly installed on the inner wall of the fixed plate 201. The outer wall of the encoder 207 is fixedly connected to the other end of the lead screw 206. The encoder 207 is connected to the lead screw 206 and can monitor the rotation angle of the lead screw 206 in real time, thereby accurately calculating the moving distance and position of the transverse block 204 and realizing the precise positioning of the atomizing nozzle 210.

[0025] like Figure 5As shown, a connecting plate 209 is fixedly connected to the top of the transverse block 204, and a spray pump 205 is fixedly installed on the top of the connecting plate 209. A telescopic corrugated pipe 203 is fixedly connected to the input end of the spray pump 205. An atomizing nozzle 210 is fixedly installed on the inner wall of the connecting plate 209. A conveying pipe 208 is fixedly connected to the output end of the spray pump 205. The conveying pipe 208 is connected to the inside of the atomizing nozzle 210. The telescopic corrugated pipe 203 is connected to the inside of the storage tank 111. The spray pump 205 is connected to the fixed storage tank 111 through the telescopic corrugated pipe 203. When the transverse block 204 moves the spray pump 205 left and right, the corrugated pipe can freely extend and retract, without pipe entanglement or pulling problems, ensuring continuous and stable delivery of paint.

[0026] The usage and working principle of this device are as follows: Before operation, paint is injected into the storage tank 111 through the feed pipe 110, and the sealing cap is tightened to prevent paint evaporation and pollution. After the equipment is started, the PLC controller 104 first controls the electric push rod 107 to perform a telescopic action, driving the disc 108 closer to the cylindrical fusible resistor. During this process, the outer wall of the cylindrical fusible resistor contacts the outer wall of multiple arc-shaped clamps 113. Under the combined action of the first spring 117 and the second spring 115, the slider 116 on the inner wall of the disc 108 slides radially, causing the arc-shaped clamps 113 to expand outward and automatically clamp the workpiece. The outer wall of the arc-shaped clamps 113 is provided with a silicone insulating pad 112, which can effectively protect the surface of the workpiece from damage. This clamping process does not require manual alignment or adjustment, achieving self-adaptive clamping. Subsequently, the two first servo motors 106 are started, and their output ends drive the rotating shaft 109 to rotate at a constant speed. The rotating shaft 109 drives the electric push rod 107 and the disc 108 to move towards the cylindrical fusible resistor. 08 rotates synchronously, thus enabling the clamped workpiece to rotate stably. At the same time, the second servo motor 202 in the spraying mechanism 2 starts, driving the lead screw 206 to rotate. The lead screw 206 drives the transverse block 204 to move at a constant speed along the axial direction, and also drives the spraying pump 205 and the atomizing nozzle 210 on the connecting plate 209 to move synchronously. The encoder 207 monitors the rotation angle of the lead screw 206 in real time and feeds it back to the PLC controller 104 to achieve precise positioning and stroke control of the transverse block 204. When the spraying pump 205 is working, it draws paint from the storage tank 111 through the telescopic bellows 203 and delivers the paint to the atomizing nozzle 210 through the conveying pipe 208. The atomizing nozzle 210 atomizes the paint and sprays it evenly on the outer circumference of the continuously rotating workpiece to achieve uniform coating of the entire surface. After a single coating operation is completed, the electric push rod 107 is reset, and the user can take out the sprayed fusible resistor to complete the single coating operation.

[0027] The PLC controller 104, the first servo motor 106, the second servo motor 202, the spray pump 205, the atomizing nozzle 210, and the electric push rod 107 used in this application are all common equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-efficiency coating equipment for fusible resistors, characterized in that, It includes a fixing mechanism (1), and a spraying mechanism (2) is fixedly installed on the outer wall of the fixing mechanism (1); The fixing mechanism (1) includes a base plate (101), a set of upright plates (105) are fixedly connected to the top of the base plate (101), a set of rotating shafts (109) are movably inserted into the inner wall of the upright plates (105), a set of electric push rods (107) are fixedly installed on the outer wall of the rotating shafts (109), a set of discs (108) are fixedly connected to the shaft end of the electric push rods (107), a slider (116) is slidably connected to the inner wall of the discs (108), a first spring (117) is fixedly connected to the outer wall of the sliders (116), a limiting rod (114) is fixedly connected to the inner wall of the discs (108), and an arc-shaped clamp (113) is fixedly connected to the outer wall of the sliders (116).

2. The high-efficiency coating equipment for fusible resistors according to claim 1, characterized in that: A PLC controller (104) is fixedly installed on the outer wall of one of the upright plates (105), a collection groove (102) is opened at the bottom of the inner wall of the base plate (101), and a set of guide plates (103) are fixedly connected to the inner wall of the upright plate (105).

3. The high-efficiency coating equipment for fusible resistors according to claim 1, characterized in that: A set of first servo motors (106) are fixedly installed on the outer wall of the upright plate (105). A storage box (111) is fixedly connected to the top of the bottom plate (101). A feed pipe (110) is fixedly connected to the outer wall of the storage box (111). A sealing cap is threadedly connected to the inner wall of the feed pipe (110). The output end of the first servo motor (106) is fixedly connected to one end of the rotating shaft (109). One end of the first spring (117) is fixedly connected to the inner wall of the disc (108). The other end of the first spring (117) is fixedly connected to the outer wall of the slider (116).

4. The high-efficiency coating equipment for fusible resistors according to claim 1, characterized in that: The outer wall of each limiting rod (114) is fitted with a second spring (115), and the outer wall of each arc-shaped clamp (113) is fixedly connected with a silicone insulating pad (112).

5. The high-efficiency coating equipment for fusible resistors according to claim 1, characterized in that: The spraying mechanism (2) includes a fixed plate (201), a lead screw (206) is movably inserted into the inner wall of the fixed plate (201), a transverse block (204) is threaded through the outer wall of the lead screw (206), and a second servo motor (202) is fixedly installed on the outer wall of the fixed plate (201). The output end of the second servo motor (202) is fixedly connected to one end of the lead screw (206).

6. The high-efficiency coating equipment for fusible resistors according to claim 5, characterized in that: An encoder (207) is fixedly installed on the inner wall of the fixing plate (201), and the outer wall of the encoder (207) is fixedly connected to the other end of the lead screw (206).

7. The high-efficiency coating equipment for fusible resistors according to claim 5, characterized in that: A connecting plate (209) is fixedly connected to the top of the transverse block (204), and a spray pump (205) is fixedly installed on the top of the connecting plate (209). A telescopic corrugated pipe (203) is fixedly connected to the input end of the spray pump (205). An atomizing nozzle (210) is fixedly installed on the inner wall of the connecting plate (209). A conveying pipe (208) is fixedly connected to the output end of the spray pump (205). The conveying pipe (208) is connected to the interior of the atomizing nozzle (210), and the telescopic corrugated pipe (203) is connected to the interior of the storage tank (111).