Automatic feeding device and method for continuous paint dipping of winding type iron core

By using a vacuum-mechanical dual pressurization system and an automated feeding device, the problem of uneven paint adhesion caused by slow air discharge in the dyeing equipment was solved, enabling parallel operation of rapid dyeing and drying, thus improving production efficiency and finished product quality.

CN121508260AActive Publication Date: 2026-02-10SHANGHAI JIOU ELECTRIC POWER TECH CO LTD
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
CN202511905483.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-02-10
Estimated Expiration
2045-12-17

AI Technical Summary

Technical Problem

Existing dyeing equipment takes a lot of time for air to escape due to buoyancy after the iron core is placed, which affects paint adhesion, causes bubbles and uneven dyeing, and reduces production efficiency and finished product quality.

Method used

A vacuum-mechanical dual pressurization system consisting of a circulating vacuum pump and a pressurization component, combined with a tilting component and a paint flow guiding component, is used to achieve rapid paint penetration and bubble removal through vacuum exhaust, mechanical pressurization and a thermal management system. Combined with an automated feeding device, it enables parallel operation of dyeing and drying.

Benefits of technology

Significantly shortens the impregnation cycle, ensures uniform and bubble-free coating adhesion, improves insulation performance and production efficiency, reduces equipment investment and operating costs, and enhances the reliability and consistency of the production process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121508260A_ABST
    Figure CN121508260A_ABST
Patent Text Reader

Abstract

The invention provides an automatic feeding device and method for continuous paint dipping of a winding type iron core, the automatic feeding device comprises a dip dyeing seat, and further comprises a material conveying device and a feeding device which are arranged on one side of the dip dyeing seat, and a dip dyeing device is arranged on the dip dyeing seat; the dip-dyeing device comprises an opening and closing assembly, an overturning assembly, a storage assembly, a pressurizing assembly, a hydraulic output assembly and a paint liquid guide assembly which are arranged on a dip-dyeing tank, through a vacuum-mechanical pressurizing and continuous dip-drying structure, the dip-dyeing period is fundamentally shortened, the production efficiency is improved, and by means of the multi-physics field cooperation and dynamic overturning technology, the dip-dyeing efficiency is improved. Compared with the prior art, bubble dead zones are thoroughly eliminated, it is ensured that paint film adhesion is uniform and free of defects, the insulation performance and the product quality of the iron core are remarkably improved, through full-process automation and high-integration design, labor dependence and operation difficulty are remarkably reduced, meanwhile, the equipment structure and energy utilization are optimized, and the comprehensive operation and production cost is effectively reduced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor production and processing, and particularly relates to an automatic feeding device and method for continuous paint dipping of a wound core. BACKGROUND

[0002] Dipping paint for small motors can improve the moisture resistance of winding insulation, slow down the aging speed of winding insulation, improve heat conduction performance, increase heat dissipation effect, improve the electrical performance and mechanical strength of the winding, and improve the stability of the winding insulation, so that it has the ability to prevent mildew, prevent corona, prevent oil stains, etc. Therefore, a paint dipping and drying device needs to be used when processing small motors.

[0003] Chinese patent CN202111260332.X discloses a paint dipping and drying all-in-one machine for small motor processing, comprising a box body, a first box door and a second box door are connected to the front of the box body, and a first observation port and a second observation port are respectively formed in the front of the first box door, the second box door and the box body. A paint inlet pipe is installed on one side of the box body, and a first threaded rod is connected inside the box body. One end of the first threaded rod penetrates through one side of the box body and is provided with a handle. An oil paint tank is installed on the inner bottom wall of the box body. A fixed plate is installed on one side of the oil paint tank. The drying mechanism comprises a drying box, a heating pipe, a baffle and a purification box. The clamping mechanism comprises a moving block, an air pump, two second threaded rods and a clamping block.

[0004] However, the technical solution has certain deficiencies in use, such as the traditional dipping equipment. After the existing dipping equipment is put into the core, the air in the paint liquid is discharged by the self-buoyancy of the air. The presence of air affects the adhesion of the paint liquid. This natural exhaust method needs to consume a lot of time, and it is easy to have air bubbles on the paint surface after dipping and not to be dipped in place, which affects the production efficiency and the quality of the finished product. SUMMARY

[0005] The present application aims to solve the problems of low dipping efficiency by providing an automatic feeding device and method for continuous paint dipping of a wound core through the cooperation of the dipping device and the feeding device.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: An automatic feeding device for continuous impregnation of wound iron cores includes an impregnation base, a material conveying device and a feeding device on one side of the impregnation base, and an impregnation device mounted on the impregnation base. The impregnation device includes an impregnation tank mounted on the impregnation base, with side tank walls sealed to both sides of the impregnation tank. Two sets of opening and closing tank covers are movably connected to the impregnation tank, and the two sets of opening and closing tank covers are interlocked. The two sets of opening and closing tank covers are provided with grooves. A load-bearing base is fixedly connected inside the impregnation base. A circulating vacuum pump is installed on the impregnation base. The circulating vacuum pump is provided with air pipe a and air pipe b. A pressure gauge is provided on both air pipe a and air pipe b. The two ends of the branch pipe of air pipe a are respectively connected through the two sets of side tank walls. The impregnation device also includes an opening and closing component, a tilting component, a material storage component, a pressurizing component, a hydraulic output component, and a paint guiding component mounted on the impregnation tank.

[0007] The feeding device includes ground rails on both sides of the conveying device, a gantry frame movably connected to the ground rails, a transverse moving module on the side of the top plate of the gantry frame, a lifting module on the transverse moving module, a lifting plate movably connected to the lifting module, a gripping seat under the lifting plate, two sets of grippers movably connected under the gripping seat, an electric reel installed on the side of the lifting plate, a cable wound on the electric reel, the bottom end of the cable passing through the lifting plate and fixedly connected to the gripping seat.

[0008] The opening and closing assembly includes: opening and closing arms, multiple sets of opening and closing arms are fixedly connected to the outside of two sets of opening and closing can lids, and the bottom end of the opening and closing arms is movably connected to the load-bearing seat; arm shaft, the arm shaft is connected through the multiple sets of opening and closing arms; arm plate, the arm plate is movably connected to the arm shaft; cylinder, two sets of cylinders are installed under the arm plate; cylinder seat, the cylinder seat is disposed on the two sets of cylinders, and the cylinder seat is fixedly connected to the load-bearing seat.

[0009] The flipping assembly includes: support plates, two sets of support plates disposed on the inner wall of the dyeing tank; a flipping plate, the flipping plate being movably connected between the two sets of support plates; a motor a, the motor a being mounted on the outer side of one set of support plates; an output wheel a, the output wheel a being disposed on the motor a; a worm a, the worm a being fixedly connected to the outer side of the output wheel a; a worm gear shaft a, the worm gear shaft a being movably connected to one end of the worm a, the worm gear shaft a meshing with the worm a; a gear a, the gear a being disposed at the top end of the worm gear shaft a; an output wheel b, the output wheel b being movably connected to the flipping plate; a chuck, the chuck being disposed on the output wheel b; three sets of chucks being movably connected to the chuck; and a motor b, the motor b being mounted on the outer side of the other set of support plates.

[0010] The flipping assembly further includes: an oil storage ring, which is fixedly connected to the flipping plate; an insulation box a, which is located outside the oil storage ring; an insulation box b, which is located on the other side of the oil storage ring; a heat-conducting ring, which is located inside the oil storage ring; and two sets of electric heaters, which are respectively located inside the insulation box a and the insulation box b.

[0011] The material storage assembly includes: a material frame disposed on the flip plate; two sets of connecting pipes disposed within the material frame; a support pipe, multiple sets of support pipes passing through and connected between the two sets of connecting pipes; a positioning rod movably connected within the multiple sets of support pipes; a conical block, multiple sets of conical blocks fixedly connected to the positioning rod, and the multiple sets of conical blocks movably connected to the multiple sets of support pipes; a limiting ring, the limiting ring fixedly connected to the inner wall of the support pipe; a fixing rod, multiple sets of fixing rods sealingly inserted into the outer wall of the support pipe; a spherical block disposed at the outer end of the fixing rod; and a spring disposed on the outer side of the fixing rod, the tail end of the spring being fixedly attached to the outer wall of the support pipe. Fixed connection; iron core body, multiple sets of iron core bodies are installed on multiple sets of support tubes; iron core outer groove, the iron core outer groove is opened on the iron core body; card seat, the card seat is located under the material frame; deflection slot, three sets of deflection slots are opened on the inner wall of the card seat; electromagnetic seat, three sets of electromagnetic seats are located on the card seat; electromagnet, the electromagnet is embedded in the inner wall of the three sets of deflection slots; oil guide ring, the oil guide ring is fixedly connected to the lower part of the card seat, the oil guide ring is sealed and movably connected to the oil storage ring; limiting groove, three sets of limiting grooves are opened under the oil guide ring, the three sets of limiting grooves are movably inserted with the three sets of claws; oil supply pipe, two sets of oil supply pipes are connected through to the outside of the oil guide ring.

[0012] The pressurization assembly includes: a pressurization tank, with two sets of pressurization tanks connected through the outer sides of the two sets of side tank walls; a piston plate, movably connected inside the pressurization tank; a hydraulic cylinder, installed on the outer side of the pressurization tank; an output rod, located at the output end of the hydraulic cylinder; a telescopic sleeve rod, fixedly connected to the tail end of the output rod; a toothed groove, with multiple sets of toothed grooves formed on the outer wall of the telescopic sleeve rod; a guide rod, with two sets of guide rods connected through the outer side of the pressurization tank; and a sealing element, located at the connection between the guide rod and the pressurization tank.

[0013] The hydraulic output assembly includes: a reversing valve body, with two sets of reversing valve bodies respectively disposed on the outside of the two sets of pressure tanks; a valve core, disposed within the reversing valve body; a valve stem, disposed on the movable part of the valve core; a hydraulic pipe a, which passes through and is connected to the reversing valve body; a hydraulic pipe b, which passes through and is connected to the reversing valve body; a check valve, with multiple sets of check valves respectively disposed at both ends of the hydraulic pipe a and the hydraulic pipe b; an output shaft, which is mounted on one end of the movable part of the valve core; a paint inlet ring, which is fixedly connected to the outside of the reversing valve body; and a paint chamber. A paint inlet chamber is located within the paint inlet ring; two sets of partitions are fixedly connected to the inner wall of the paint inlet chamber; a three-way pipe a is connected through the upper part of the paint inlet ring and is connected through the upper ends of hydraulic pipe a and hydraulic pipe b; a three-way pipe b is connected through the lower part of the paint inlet ring and is connected through the lower ends of hydraulic pipe a and hydraulic pipe b; an output ring is movably connected within the paint inlet chamber; a ring piston block is fixedly connected to the middle section of the outer wall of the output ring; and a locking block is fixedly connected to the outer side of the output ring.

[0014] The paint flow guiding assembly includes: a flow guiding shaft movably connected between two sets of support plates; a gear b disposed at one end of the flow guiding shaft; a worm gear b, with two sets of worm gears b disposed on the flow guiding shaft; a worm wheel shaft b, with two sets of worm wheel shafts b disposed on one side of the flow guiding shaft; a blade a, with the blade a disposed on the two sets of worm wheel shafts b; and multiple blades b, with multiple sets of blades b disposed on the flow guiding shaft.

[0015] A feeding method for an automatic feeding device for continuous impregnation of wound iron cores includes the following steps: Step 1, Batch placement of iron cores: By passing the outer groove of the iron core body through the support tube, multiple iron core bodies can be batch-fitted onto multiple sets of support tubes, thereby realizing the batch connection and placement of iron core bodies and support tubes. By driving the positioning rod to move multiple sets of conical blocks, the conical structure pushes out multiple sets of fixing rods simultaneously to overcome the spring's rebound force, thereby suspending the iron core body in the air. The use of spherical blocks increases the contact area between the iron core body and the paint, improving the paint's adhesion effect. Step 2, Frame Loading Process: The material frame with the iron core placed is transported to the nearest point by the material conveying device; the gantry frame is driven by the lower drive unit to move along the ground rail to above the material frame; the gripping seat is lowered by the horizontal moving module and the lifting module; the material frame is picked up by the two sets of grippers on the gripping seat; and moved to directly above the dyeing tank by the horizontal moving module and the lifting module. The gripping seat and the material frame are then placed above the flip plate inside the dyeing tank through the two sets of open and closed tank lids by the electric reel unwinding cable; the gripping seat is then retracted and the loading is completed. Step 3, frame docking process: The three sets of jaws are driven to extend outward by the drive component inside the chuck, and the three sets of jaws are movably inserted into the three sets of limiting grooves on the oil guide ring. The material frame and the flip plate are locked together by deflection of the deflection groove on the chuck seat. After locking, the material frame is further fixed by contact adsorption between the metal jaws and the electromagnet under the electromagnetic seat to ensure the stability of the iron core during dyeing. Two sets of cylinders drive the opening and closing arms and arm shafts to rotate the two sets of opening and closing tank covers along the load-bearing base to close them, and the seal is achieved through the connection between the cable tray and the support cable. Step 4, First-stage dyeing process: A fixed amount of paint is injected into the dyeing tank through the bottom pipe. The paint submerges the material frame and comes into contact with the iron core body inside the frame for dyeing. The air in the dyeing tank is extracted by a circulating vacuum pump and air pipe a. The air is injected into the pressure tank through air pipe b, so that the environment inside the dyeing tank is in a vacuum. Under vacuum, the air bubbles in the paint and the air bubbles carried by the iron core are quickly discharged under pressure, effectively removing air bubbles in the paint and improving the dyeing efficiency of the paint on the iron core. The piston plate is driven by a hydraulic cylinder to move towards the dyeing tank, so that the paint liquid on the other side of the piston plate and the end connected to the dyeing tank is quickly pushed into the dyeing tank. Under the pressure of the piston plate, the lower chamber of the dyeing tank is quickly filled with paint liquid. The hydraulic pressure in the lower chamber will continue to increase due to the continuous drive of the piston plate. The mechanical hydraulic system combined with the vacuum hydraulic system greatly improves the efficiency of air bubble discharge in the iron core, so that the paint liquid can quickly enter the gaps in the iron core structure to complete the dyeing. Step 5, Second-stage dyeing process: During pressurization, electrical energy is converted into heat energy through the internal resistance of the two sets of electric heaters, and the oil in the oil storage ring is heated through the heat conduction ring. The hot oil is supplied from the oil storage ring to the oil guide ring through the circulating liquid supply of the circulating pumps in the heat preservation box a and heat preservation box b, and then flowed to multiple sets of support pipes through the two sets of oil delivery pipes and connecting pipes. Due to the continuous circulation of the oil and the continuous heating of the heat-conducting ring, the temperature at the center of the support tube and the iron core body rises or falls in a stepwise manner. By establishing a directional temperature field and flow field, coupled with multiple physical effects, precise control of the bubble transport path can be achieved, thereby optimizing the degassing kinetics process. This improves the bubble discharge efficiency and increases the fluidity of the paint. Furthermore, it can optimize the temperature field distribution, ensure uniform curing, and increase the permeability and filling degree of the insulating paint, avoiding paint accumulation and sagging caused by local low temperature and high viscosity. Step Six, Three-Stage Immersion Process: During pressurization and heating, motor a and output wheel a drive the tilting plate and the material frame placed on the tilting plate to deflect, and motor b drives the material frame on the tilting plate to rotate, thereby achieving omnidirectional rotation drive of the iron core in the material frame. This deflection action breaks the adhesion between the bubbles and the surface of the iron core, promotes the detachment of bubbles and the flow of paint, prevents dead zones of bubbles, and improves the integrity and uniformity of the paint film. Step 7, Pressure Holding and Flow Guiding Process: The rotation of motor a and output wheel a drives the worm a to rotate. The meshing of worm wheel shaft a and worm a drives gear a to rotate. After the output rod is pressurized and extended to the specified limit length, the tooth groove contacts and meshes with gear a. The reciprocating rotation of gear a drives the telescopic sleeve rod and piston plate to reciprocate, thereby causing the pressurized paint liquid to vibrate. The vibration of the paint liquid carries out the air bubbles remaining in the inner cavity of the iron core body, further improving the air bubble discharge efficiency, that is, improving the paint liquid adhesion efficiency. After pressurization, the paint is injected from the upper end of hydraulic pipe a through the hydraulic differential, and flows out from the lower end after passing through the reversing valve body. During injection, some paint is continuously diverted to the paint inlet ring through the three-way pipe a, causing the hydraulic pressure in the paint chamber above the ring piston block to continuously increase until the hydraulic pressure can overcome the return torque of the torsion spring in the output ring, causing the output ring to deflect. This deflects the valve stem clockwise through the locking block on the output ring, and the valve stem drives the valve core and output shaft to rotate clockwise, closing hydraulic pipe a and opening hydraulic pipe b. Paint is then injected from the lower end of hydraulic pipe b and flows out from the upper end, passing through the three-way pipe a. The flow from pipe b continuously diverts the liquid into the paint inlet ring, causing the hydraulic pressure in the paint chamber below the piston block to increase continuously. This hydraulic differential drives the valve core and output shaft to rotate counterclockwise, thus achieving reciprocating rotation of the output shaft. The rotation of the output shaft drives the paint guiding assembly to rotate reciprocally through the transmission components on the output shaft. The rotation, through the meshing of worm gear b and worm wheel shaft b, drives blade a and multiple sets of blades b to rotate reciprocally. This rotation drives the flow of paint in the immersion tank, which accelerates the efficiency of bubble removal in the paint, thereby greatly improving the paint adhesion effect, effectively reducing the immersion time, and increasing production efficiency. A measured amount of paint is discharged through the bottom pipe of the impregnation tank. The electrical energy is then converted into heat energy by the internal resistance of two sets of electric heaters. The oil in the oil storage ring is heated through the heat conduction ring. The hot oil is then supplied from the oil storage ring to the oil guide ring through the circulating pumps in the insulation boxes a and b. The oil is then sent to multiple sets of support pipes through two sets of oil delivery pipes and connecting pipes. The upper cavity of the impregnation tank is heated by contact with the air inside the tank. The heat is used to dry and shape the impregnated iron core body, thus completing one impregnation and drying operation.

[0016] The beneficial effects of this invention are as follows: (1) The present invention uses a "vacuum-mechanical" dual pressurization system consisting of a circulating vacuum pump and a pressurization component to force the paint liquid to penetrate and quickly remove air bubbles, which greatly shortens the single dipping cycle. At the same time, the "upper and lower chamber isolation" design of the dipping tank enables parallel operation of dipping and drying. Combined with the automated transportation of the feeding device, the entire production process is made continuous, eliminating the waiting time between processes and fundamentally improving the overall equipment output efficiency.

[0017] (2) The flipping component of this invention enables the iron core to rotate along multiple axes, and combined with the directional flow field generated by the paint guiding component, completely eliminates the dead zone of air bubbles. At the same time, the internal heating system establishes a uniform temperature field by conducting heat through the support tube, which enhances the fluidity of the paint and makes it cure evenly. Together, these factors ensure that the paint film on the iron core body is evenly adhered and free of air bubbles, greatly improving its insulation performance and service life.

[0018] (3) This invention integrates multiple functional units such as dipping, drying, and defoaming into a compact system through highly integrated design, simplifying traditional production lines and reducing initial equipment investment and floor space. Furthermore, its thermal management system, such as the oil storage ring, achieves efficient energy recycling, reducing additional energy consumption. The modular material frame design also facilitates maintenance and rapid material replacement, thereby reducing long-term operation and maintenance costs. From material feeding by the material handling device to the precise gripping by the gantry and grippers of the loading device, and then to the automatic docking and locking of the grippers and electromagnets inside the dipping tank, the entire process achieves fully automated operation. This not only significantly reduces the labor intensity and skill requirements of operators but also effectively avoids quality instability caused by human error, ensuring the reliability and consistency of the production process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the side structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the feeding device of the present invention; Figure 4 This is a partial structural diagram of the feeding device of the present invention; Figure 5 This is a schematic diagram of the overall structure of the dyeing apparatus of the present invention; Figure 6 This is a schematic diagram showing the disassembled structure of the dyeing apparatus of the present invention; Figure 7 This is a schematic diagram of the opening and closing component structure of the present invention; Figure 8 This is a schematic cross-sectional view of the dyeing tank of the present invention; Figure 9 This is a schematic diagram of the overall structure of the flipping component of the present invention; Figure 10 This is a schematic diagram of the flip component structure of the present invention; Figure 11 This is a schematic diagram of the material storage component structure of the present invention; Figure 12 This is a schematic diagram of the core structure of the present invention; Figure 13 This is a schematic diagram of the support tube structure of the present invention; Figure 14 This is a schematic diagram of the material frame docking assembly structure of the present invention; Figure 15 This is a schematic diagram of the overall structure of the pressurization component of the present invention; Figure 16 This is a schematic cross-sectional view of the pressurization component of the present invention; Figure 17 This is a schematic diagram of the hydraulic output component structure of the present invention; Figure 18 This is a schematic diagram of the paint flow guiding component of the present invention.

[0020] The reference numerals in the accompanying drawings of this application are as follows: 1. Dyeing seat; 2. Material conveying device; 3. Feeding device; 301. Ground rail; 302. Gantry frame; 303. Horizontal movement module; 304. Lifting module; 305. Lifting plate; 306. Gripper seat; 307. Gripper; 308. Electric reel; 309. Cable; 4. Dyeing device; 401. Dyeing tank; 402. Side tank wall; 403. Opening and closing tank cover; 4031. Cable tray; 404. Load-bearing seat; 405. Circulating vacuum pump; 4051. Air pipe a; 4052. Air pipe b; 4053. Barometer; 41. Opening and closing assembly; 411. Opening and closing arm. 412. Arm shaft; 413. Arm plate; 414. Cylinder; 415. Cylinder seat; 42. Tilting assembly; 421. Support plate; 422. Tilting plate; 423. Motor a; 424. Output wheel a; 4241. Worm gear a; 4242. Worm gear shaft a; 4243. Gear a; 425. Output wheel b; 4251. Chuck; 4252. Pallet; 426. Motor b; 427. Oil reservoir ring; 4271. Insulation box a; 4272. Insulation box b; 4273. Heat-conducting ring; 4274. Heater; 43. Material storage assembly; 431. Material frame; 432. Connecting pipe; 433. Support tube; 4331, Positioning rod; 4332, Conical block; 4333, Restricting ring; 4334, Fixing rod; 4335, Spherical block; 4336, Spring; 434, Iron core body; 4341, Iron core outer groove; 435, Card holder; 4351, Deflection slot; 4352, Electromagnetic seat; 4353, Electromagnet; 436, Oil guide ring; 4361, Restricting groove; 4362, Oil supply pipe; 44, Pressurization assembly; 441, Pressurization tank; 442, Piston plate; 443, Hydraulic cylinder; 444, Output rod; 4441, Telescopic sleeve rod; 4442, Toothed groove; 445, Guide rod; 4 46. ​​Seal; 45. Hydraulic output assembly; 451. Reversing valve body; 452. Valve core; 453. Valve stem; 454. Hydraulic pipe a; 455. Hydraulic pipe b; 456. Check valve; 457. Output shaft; 458. Paint inlet ring; 4581. Paint chamber; 4582. Baffle; 4583. T-pipe a; 4584. T-pipe b; 459. Output ring; 4591. Ring piston block; 4592. Clamping block; 46. Paint flow guiding assembly; 461. Flow guiding shaft; 462. Gear b; 463. Worm b; 464. Worm wheel shaft b; 465. Blade a; 466. Blade b. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 invention 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 invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] Example 1: As Figures 1-6 As shown, this embodiment provides an automatic feeding device and method for continuous impregnation of wound iron cores, including an impregnation base 1, a material conveying device 2 and a feeding device 3 on one side of the impregnation base 1, and an impregnation device 4 disposed on the impregnation base 1; the impregnation device 4 includes an impregnation tank 401 disposed on the impregnation base 1, side tank walls 402 sealingly connected to both sides of the impregnation tank 401, and two sets of opening and closing tank covers 403 movably connected to the impregnation tank 401, the two sets of opening and closing tank covers 403 engaging with each other, and wire grooves 4031 provided on the two sets of opening and closing tank covers 403. The immersion tank 1 is fixedly connected to a load-bearing base 404. A circulating vacuum pump 405 is installed on the immersion tank 1. The circulating vacuum pump 405 is provided with air pipe a4051 and air pipe b4052. A pressure gauge 4053 is provided on both air pipe a4051 and air pipe b4052. The two ends of the branch pipe of air pipe a4051 are respectively connected to the two sets of side tank walls 402. The immersion device 4 also includes an opening and closing component 41, a tilting component 42, a material storage component 43, a pressurizing component 44, a hydraulic output component 45, and a paint liquid guiding component 46 provided on the immersion tank 401.

[0025] The feeding device 3 includes ground rails 301 on both sides of the conveying device 2. A gantry frame 302 is movably connected to the ground rails 301. A transverse moving module 303 is provided on the side of the top plate of the gantry frame 302. A lifting module 304 is provided on the transverse moving module 303. A lifting plate 305 is movably connected to the lifting module 304. A gripping seat 306 is provided under the lifting plate 305. Two sets of grippers 307 are movably connected under the gripping seat 306. An electric reel 308 is installed on the side of the lifting plate 305. A cable 309 is wound on the electric reel 308. The bottom end of the cable 309 passes through the lifting plate 305 and is fixedly connected to the gripping seat 306.

[0026] In this embodiment, the material frame 431 with the iron core placed is transported to the nearest point by the material conveying device 2; the gantry frame 302 is driven by the lower end drive component to move along the ground rail 301 to above the material frame 431; the gripping seat 306 is lowered by the transverse module 303 and the lifting module 304; the material frame 431 is picked up by the two sets of grippers 307 on the gripping seat 306; and moved to directly above the dyeing tank 401 by the transverse module 303 and the lifting module 304. The gripping seat 306 and the material frame 431 are placed above the flip plate 422 inside the dyeing tank 401 through the two sets of open and closed tank lids 403 by the electric reel 308 unwinding the cable 309; and the gripping seat 306 and the material frame 431 are then retracted and the loading is completed.

[0027] Example 2: Figures 7-14 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: The opening and closing assembly 41 includes: opening and closing arms 411, multiple sets of opening and closing arms 411 are fixedly connected to the outside of two sets of opening and closing can lids 403, and the bottom end of the opening and closing arms 411 is movably connected to the support seat 404; arm shaft 412, the arm shaft 412 is connected through the multiple sets of opening and closing arms 411; arm plate 413, the arm plate 413 is movably connected to the arm shaft 412; cylinder 414, two sets of cylinder 414 are installed under the arm plate 413; cylinder seat 415, the cylinder seat 415 is provided on the two sets of cylinder 414, and the cylinder seat 415 is fixedly connected to the support seat 404.

[0028] In this embodiment, two sets of cylinders 414 drive the opening and closing arms 411 and arm shaft 412 to rotate the two sets of opening and closing tank covers 403 along the support base 404 to close them. The seal is achieved by connecting the cable 309 to the cable groove 4031, thereby realizing the sealing and closure of the dyeing tank 401.

[0029] The tilting assembly 42 includes: support plates 421, two sets of support plates 421 are disposed on the inner wall of the dyeing tank 401; a tilting plate 422, the tilting plate 422 is movably connected between the two sets of support plates 421; a motor a423, the motor a423 is mounted on the outside of one set of support plates 421; an output wheel a424, the output wheel a424 is disposed on the motor a423; a worm gear a4241, the worm gear a4241 is fixedly connected to the outside of the output wheel a424; and a worm gear shaft a4242, the worm gear shaft a4242 is movably connected to... One end of the worm a4241 is meshed with the worm gear shaft a4242; gear a4243 is located at the top of the worm gear shaft a4242; output wheel b425 is movably connected to the tilting plate 422; chuck 4251 is located on the output wheel b425; pawls 4252, three sets of pawls 4252 are movably connected to the chuck 4251; motor b426 is mounted on the outside of another set of support plates 421.

[0030] The flipping assembly 42 also includes: an oil storage ring 427, which is fixedly connected to the flipping plate 422; an insulation box a 4271, which is located on the outside of the oil storage ring 427; an insulation box b 4272, which is located on the other side of the oil storage ring 427; a heat-conducting ring 4273, which is located inside the oil storage ring 427; and two electric heaters 4274, which are respectively located inside the insulation box a 4271 and the insulation box b 4272.

[0031] In this embodiment, the motor a423 and the output wheel a424 drive the tilting plate 422 and the material frame 431 placed on the tilting plate 422 to deflect, and the motor b426 drives the material frame 431 on the tilting plate 422 to rotate, thereby realizing the all-round rotation drive of the iron core inside the material frame 431. This deflection action breaks the adhesion between the air bubble and the surface of the iron core, promotes the detachment of air bubbles and the flow of paint, prevents dead zones of air bubbles, and improves the integrity and uniformity of the paint film. The three sets of jaws 4252 are driven to extend outward by the internal drive component of the chuck 4251. The three sets of jaws 4252 are movably inserted into the three sets of limiting grooves 4361 on the oil guide ring 436. The material frame 431 is engaged with the flip plate 422 by deflection with the deflection groove 4351 on the chuck seat 435. After engagement, the material frame 431 is further fixed by contact adsorption between the metal jaws 4252 and the electromagnet 4353 under the electromagnetic seat 4352, ensuring the stability of the iron core during dyeing. Electrical energy is converted into heat energy through the internal resistance of two sets of electric heaters 4274, and the oil in the oil storage ring 427 is heated through the heat conduction ring 4273. The hot oil is supplied from the oil storage ring 427 to the oil guide ring 436 through the circulating pump in the insulation box a4271 and insulation box b4272. The oil is then transported to multiple sets of support pipes 433 through two sets of oil delivery pipes 4362 and connecting pipes 432. The heat improves the efficiency of bubble removal on the iron core body 434 during impregnation, and after impregnation, the heat is used to heat the upper cavity to dry and cure the paint film on the surface of the iron core.

[0032] The material storage assembly 43 includes: a material frame 431, which is disposed on the tilting plate 422; two sets of connecting pipes 432 disposed within the material frame 431; multiple sets of support pipes 433 passing through and connecting the two sets of connecting pipes 432; a positioning rod 4331, which is movably connected within the multiple sets of support pipes 433; and multiple sets of conical blocks 4332, which are fixedly connected to the positioning rod 4331. The shaped block 4332 is movably connected to multiple sets of support tubes 433; the limiting ring 4333 is fixedly connected to the inner wall of the support tube 433; the fixing rod 4334, multiple sets of fixing rods 4334 are sealed and inserted into the outer wall of the support tube 433; the spherical block 4335 is located at the outer end of the fixing rod 4334; the spring 4336 is located on the outside of the fixing rod 4334, and the tail end of the spring 4336 is connected to the outer wall of the support tube 433. Fixed connection; iron core body 434, multiple iron core bodies 434 are installed on multiple support tubes 433; iron core outer groove 4341, the iron core outer groove 4341 is opened on the iron core body 434; clamping seat 435, the clamping seat 435 is located below the material frame 431; deflection groove 4351, three sets of deflection grooves 4351 are opened on the inner wall of the clamping seat 435; electromagnetic seat 4352, three sets of electromagnetic seats 4352 are located on the clamping seat 435; electromagnet 4353, electric Magnet 4353 is fitted into the inner wall of three sets of deflection slots 4351; oil guide ring 436 is fixedly connected to the underside of the card seat 435, and the oil guide ring 436 is sealed and movably connected to the oil storage ring 427; limiting groove 4361, three sets of limiting grooves 4361 are opened under the oil guide ring 436, and the three sets of limiting grooves 4361 are movably inserted into the three sets of claws 4252; oil supply pipe 4362, two sets of oil supply pipes 4362 are connected through to the outside of the oil guide ring 436.

[0033] In this embodiment, the iron core body 434 can be fitted onto the support tube 433 by passing the iron core outer groove 4341 on the iron core body 434 through the support tube 433, thereby realizing the batch connection and placement of the iron core body 434 and the support tube 433. By driving the positioning rod 4331, multiple sets of conical blocks 4332 are moved. The conical structure pushes out multiple sets of fixing rods 4334 simultaneously, overcoming the rebound force of the spring 4336. This allows the iron core body 434 to be suspended and lifted. The use of the spherical block 4335 increases the contact area between the iron core body 434 and the paint, thus improving the paint adhesion effect.

[0034] The pressurization assembly 44 includes: a pressurization tank 441, with two sets of pressurization tanks 441 connected through to the outside of two sets of side tank walls 402; a piston plate 442, movably connected inside the pressurization tank 441; a hydraulic cylinder 443, installed on the outside of the pressurization tank 441; an output rod 444, located at the output end of the hydraulic cylinder 443; a telescopic sleeve 4441, fixedly connected to the tail end of the output rod 444; a toothed groove 4442, with multiple sets of toothed grooves 4442 formed on the outer wall of the telescopic sleeve 4441; a guide rod 445, with two sets of guide rods 445 connected through to the outside of the pressurization tank 441; and a sealing element 446, located at the connection between the guide rod 445 and the pressurization tank 441.

[0035] In this embodiment, the piston plate 442 is driven by the hydraulic cylinder 443 to move towards the dyeing tank 401, so that the paint liquid on the other side of the piston plate 442 connected to the dyeing tank 401 is quickly pushed into the dyeing tank 401. Under the pressure of the piston plate 442, the lower cavity of the dyeing tank 401 is quickly filled with paint liquid, and the hydraulic pressure in the lower cavity will continue to increase due to the continuous drive of the piston plate 442. The mechanical hydraulic system combined with the vacuum hydraulic system greatly improves the efficiency of air bubble discharge in the iron core, so that the paint liquid can quickly enter the gaps in the iron core structure to complete the dyeing. The rotation of motor a423 and output wheel a424 drives the worm a4241 to rotate. The meshing of worm shaft a4242 with worm a4241 drives gear a4243 to rotate. After the output rod 444 is pressurized and extended to the specified limit length, the tooth groove 4442 contacts and meshes with gear a4243. The reciprocating rotation of gear a4243 drives the telescopic sleeve rod 4441 and piston plate 442 to reciprocate, which further causes the pressurized paint liquid to vibrate. The vibration of the paint liquid carries out the air bubbles that remain in the inner cavity of the iron core body 434, further improving the air bubble discharge efficiency, that is, improving the paint adhesion efficiency.

[0036] Hydraulic output assembly 45 includes: a reversing valve body 451, with two sets of reversing valve bodies 451 respectively located on the outside of two sets of pressure tanks 441; a valve core 452, located inside the reversing valve body 451; a valve stem 453, located on the movable part of the valve core 452; a hydraulic pipe a 454, which passes through and connects to the reversing valve body 451; a hydraulic pipe b 455, which passes through and connects to the reversing valve body 451; a check valve 456, with multiple sets of check valves 456 respectively located at both ends of the hydraulic pipe a 454 and the hydraulic pipe b 455; an output shaft 457, mounted on one end of the movable part of the valve core 452; a paint inlet ring 458, which is fixedly connected to the outside of the reversing valve body 451; and a paint chamber 4581. 1. A partition plate 4582 is fixedly connected to the inner wall of the paint chamber 4581; 2. A three-way pipe a4583 is connected above the paint inlet ring 458 and is connected to the upper ends of hydraulic pipes a454 and b455; 3. A three-way pipe b4584 is connected below the paint inlet ring 458 and is connected to the lower ends of hydraulic pipes a454 and b455; 4. An output ring 459 is movably connected to the paint chamber 4581; 5. A ring piston block 4591 is fixedly connected to the middle section of the outer wall of the output ring 459; 6. A locking block 4592 is fixedly connected to the outside of the output ring 459.

[0037] In this embodiment, the upper and lower ends of hydraulic pipes a454 and b455 are connected to the pressurizing tank 441. After pressurization, the paint is injected from the upper end of hydraulic pipe a454 through the hydraulic differential, and flows out from the lower end after passing through the reversing valve body 451. During injection, some paint is continuously diverted to the paint inlet ring 458 through the three-way pipe a4583, which continuously increases the hydraulic pressure in the paint chamber 4581 above the ring piston block 4591 until the hydraulic pressure can overcome the return torque of the torsion spring in the output ring 459, causing the output ring 459 to deflect. The valve stem 453 rotates clockwise through the locking block 4592 on the output ring 459. When the valve stem 453 rotates, it drives the valve core 452 and the output shaft 457 to rotate clockwise, causing the hydraulic pipe a454 to close and the hydraulic pipe b455 to flow freely. The paint is injected from the lower end of the hydraulic pipe b455 and flows out from the upper end. It is continuously diverted to the paint inlet ring 458 through the three-way pipe b4584, causing the hydraulic pressure in the paint chamber 4581 below the ring piston block 4591 to continuously increase. Through the hydraulic difference, the valve core 452 and the output shaft 457 rotate counterclockwise, thereby realizing the reciprocating rotation of the output shaft 457. The rotation of the output shaft 457 drives the paint guiding assembly 46 to reciprocate and guide the flow through the transmission component on the output shaft 457.

[0038] The paint flow guiding assembly 46 includes: a guide shaft 461, which is movably connected between two sets of support plates 421; a gear b462, which is located at one end of the guide shaft 461; a worm gear b463, with two sets of worm gears b463 located on the guide shaft 461; a worm wheel shaft b464, with two sets of worm wheel shafts b464 located on one side of the guide shaft 461; a blade a465, which is located on the two sets of worm wheel shafts b464; and multiple blades b466, which are located on the guide shaft 461.

[0039] In this embodiment, the reciprocating rotation of the guide shaft 461 is achieved by the reciprocating rotation drive of the output shaft 457 and the transmission of the transmission component. The rotation drives the blade a465 and multiple sets of blades b466 to reciprocate through the meshing of the worm gear b463 and the worm wheel shaft b464. The rotation drives the flow of paint liquid in the dyeing tank 401, and the flow accelerates the efficiency of bubble discharge in the paint liquid.

[0040] Work steps Step 1, Batch placement of iron cores: Through the iron core outer groove 4341 on the iron core body 434 passing through the support tube 433, multiple iron core bodies 434 can be batch-fitted onto multiple sets of support tubes 433, thereby realizing the batch connection and placement of iron core bodies 434 and support tubes 433. By driving the positioning rod 4331, multiple sets of conical blocks 4332 are moved. The conical structure pushes out multiple sets of fixing rods 4334 simultaneously, overcoming the rebound force of the spring 4336. This allows the iron core body 434 to be suspended and lifted. The use of the spherical block 4335 increases the contact area between the iron core body 434 and the paint, thus improving the paint adhesion effect. Step 2, Frame Loading Process: The material frame 431 with the iron core placed is transported to the nearest point by the material conveying device 2; the gantry frame 302 is driven by the lower drive component to move along the ground rail 301 to above the material frame 431; the gripping seat 306 is lowered by the horizontal moving module 303 and the lifting module 304; the material frame 431 is picked up by the two sets of grippers 307 on the gripping seat 306; and moved to directly above the dyeing tank 401 by the horizontal moving module 303 and the lifting module 304. The gripping seat 306 and the material frame 431 are placed above the flip plate 422 inside the dyeing tank 401 through the two sets of open and closed tank covers 403 by the electric reel 308 unwinding the cable 309; the gripping seat 306 is then retracted and the loading is completed. Step 3, frame docking process: The three sets of claws 4252 are driven to extend outward by the driving component inside the chuck 4251, and are movably inserted into the three sets of limiting grooves 4361 on the oil guide ring 436 through the three sets of claws 4252. The material frame 431 is connected to the flip plate 422 by deflection with the deflection groove 4351 on the card seat 435. After engagement, the material frame 431 is further fixed by contact adsorption between the metal claws 4252 and the electromagnet 4353 under the electromagnetic seat 4352, so as to ensure the stability of the iron core during dyeing. Two sets of cylinders 414 drive the opening and closing arms 411 and arm shaft 412 to drive the two sets of opening and closing tank covers 403 to rotate along the support base 404 to close, and seal the connection between the cable trough 4031 and the supporting cable 309. Step 4, First-stage dyeing process: A measured amount of paint is injected into the dyeing tank 401 through the bottom pipe. The paint submerges the material frame 431 and contacts the iron core body 434 inside the frame for dyeing. The air inside the dyeing tank 401 is extracted by the circulating vacuum pump 405 and the air pipe a4051. The air is injected into the pressure tank 441 through the air pipe b4052, so that the environment inside the dyeing tank 401 is in a vacuum. Under vacuum, the air bubbles in the paint and the air bubbles carried by the iron core are quickly discharged under pressure, effectively removing air bubbles in the paint and improving the dyeing efficiency of the paint on the iron core. The piston plate 442 is driven by the hydraulic cylinder 443 to move towards the dyeing tank 401, so that the paint liquid on the other side of the piston plate 442 connected to the dyeing tank 401 is quickly pushed into the dyeing tank 401. Under the pressure of the piston plate 442, the lower cavity of the dyeing tank 401 is quickly filled with paint liquid. The hydraulic pressure in the lower cavity will continue to increase due to the continuous drive of the piston plate 442. The mechanical hydraulic system combined with the vacuum hydraulic system greatly improves the efficiency of air bubble discharge in the iron core, so that the paint liquid can quickly enter the gaps in the iron core structure to complete the dyeing. Step 5, Second-stage dyeing process: During pressurization, electrical energy is converted into heat energy through the internal resistance of two sets of electric heaters 4274, and the oil in the oil storage ring 427 is heated through the heat conduction ring 4273. The hot oil is supplied from the oil storage ring 427 to the oil guide ring 436 through the circulating liquid supply of the circulating pumps in the heat preservation box a4271 and heat preservation box b4272, and then flows to multiple sets of support pipes 433 through two sets of oil delivery pipes 4362 and connecting pipes 432. Due to the continuous circulation of the oil and the continuous heating of the heat-conducting ring 4273, the temperature at the center of the support tube 433 and the iron core body 434 rises or falls in a stepwise manner. By establishing a directional temperature field and flow field, coupled with multiple physical effects, precise control of the bubble transport path is achieved, thereby optimizing the degassing kinetics process. This improves the bubble discharge efficiency and increases the fluidity of the paint. Furthermore, it can optimize the temperature field distribution, ensure uniform curing, and increase the permeability and filling degree of the insulating paint, avoiding paint accumulation and sagging caused by local low temperature and high viscosity. Step Six, Three-Stage Immersion Process: During pressurization and heating, the motor a423 and output wheel a424 drive the tilting plate 422 and the material frame 431 placed on the tilting plate 422 to deflect, and the motor b426 drives the material frame 431 on the tilting plate 422 to rotate, thereby realizing the all-round rotation drive of the iron core inside the material frame 431. This deflection action breaks the adhesion between the air bubbles and the surface of the iron core, promotes the detachment of air bubbles and the flow of paint, prevents dead zones of air bubbles, and improves the integrity and uniformity of the paint film. Step 7, Pressure Holding and Flow Guiding Process: The rotation of motor a423 and output wheel a424 drives the worm a4241 to rotate. The meshing of worm shaft a4242 and worm a4241 drives gear a4243 to rotate. After the output rod 444 is pressurized and extended to the specified limit length, the tooth groove 4442 contacts and meshes with gear a4243. The reciprocating rotation of gear a4243 drives the telescopic sleeve rod 4441 and piston plate 442 to reciprocate, thereby further causing the pressurized paint liquid to vibrate. The vibration of the paint liquid carries out the air bubbles remaining in the inner cavity of the iron core body 434, further improving the air bubble discharge efficiency, that is, improving the paint liquid adhesion efficiency. After pressurization, the paint is injected from the upper end of hydraulic pipe a454 via hydraulic differential pressure. After passing through the reversing valve body 451, it flows out from the lower end. During injection, some paint is continuously diverted to the paint inlet ring 458 through the three-way pipe a4583, causing the hydraulic pressure in the paint chamber 4581 above the ring piston block 4591 to continuously increase until the hydraulic pressure can overcome the return torque of the torsion spring in the output ring 459, causing the output ring 459 to deflect. This causes the valve stem 453 to rotate clockwise through the locking block 4592 on the output ring 459. The valve stem 453 then causes the valve core 452 and the output shaft 457 to rotate clockwise, closing hydraulic pipe a454 and opening hydraulic pipe b455. Paint is then injected from the lower end of hydraulic pipe b455 and flows out from the upper end. The liquid is continuously diverted to the paint inlet ring 458 through the three-way pipe b4584, causing the hydraulic pressure in the paint chamber 4581 below the ring piston block 4591 to continuously increase. The hydraulic differential drives the valve core 452 and the output shaft 457 to rotate counterclockwise, thereby realizing the reciprocating rotation of the output shaft 457. The rotation of the output shaft 457 drives the paint guiding assembly 46 to rotate reciprocally through the transmission component on the output shaft 457. The rotation drives the blade a465 and multiple sets of blades b466 to rotate reciprocally through the meshing of the worm gear b463 and the worm wheel shaft b464. The rotation drives the flow of paint in the dyeing tank 401. The flow accelerates the efficiency of bubble discharge in the paint, thereby greatly improving the paint adhesion effect, effectively reducing the time required for dyeing, and improving production efficiency. A measured amount of paint is discharged through the bottom pipe of the impregnation tank 401. The electrical energy is then converted into heat energy by the internal resistance of two sets of electric heaters 4274. The oil in the oil storage ring 427 is heated through the heat conduction ring 4273. The hot oil is supplied from the oil storage ring 427 to the oil guide ring 436 through the circulating pumps in the insulation boxes a4271 and b4272. The oil is then sent to multiple sets of support pipes 433 through two sets of oil delivery pipes 4362 and connecting pipes 432. The upper cavity of the impregnation tank 401 is heated by contact with the air inside. The heat is used to dry and shape the impregnated iron core body 434, thus completing one impregnation and drying operation.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic feeding device for continuous impregnation of wound iron cores, comprising an impregnation station (1), characterized in that, It also includes a material conveying device (2) and a feeding device (3) on one side of the dyeing seat (1), and a dyeing device (4) is provided on the dyeing seat (1). The dyeing device (4) includes a dyeing tank (401) disposed on the dyeing base (1). The two sides of the dyeing tank (401) are sealed with side tank walls (402). Two sets of opening and closing tank covers (403) are movably connected to the dyeing tank (401). The two sets of opening and closing tank covers (403) are locked together. The two sets of opening and closing tank covers (403) are provided with wire grooves (4031). A load-bearing seat (404) is fixedly connected inside the dyeing base (1). A circulating vacuum pump (405) is installed on the dyeing base (1). The circulating vacuum pump (405) is provided with air pipe a (4051) and air pipe b (4052). A barometer (4053) is provided on both air pipe a (4051) and air pipe b (4052). The two ends of the branch pipe of air pipe a (4051) are respectively connected to the two sets of side tank walls (402). The dyeing apparatus (4) further includes an opening and closing assembly (41), a flipping assembly (42), a material storage assembly (43), a pressurizing assembly (44), a hydraulic output assembly (45), and a paint flow guiding assembly (46) disposed on the dyeing tank (401).

2. The automatic feeding device for continuous impregnation of wound iron cores according to claim 1, characterized in that, The feeding device (3) includes ground rails (301) on both sides of the conveying device (2), a gantry frame (302) is movably connected to the ground rails (301), a transverse module (303) is provided on the side of the top plate of the gantry frame (302), a lifting module (304) is provided on the transverse module (303), a lifting plate (305) is movably connected to the lifting module (304), a gripping seat (306) is provided under the lifting plate (305), two sets of grippers (307) are movably connected under the gripping seat (306), an electric reel (308) is installed on the side of the lifting plate (305), a cable (309) is wound on the electric reel (308), and the bottom end of the cable (309) passes through the lifting plate (305) and is fixedly connected to the gripping seat (306).

3. An automatic feeding device for continuous impregnation of wound iron cores according to claim 1, characterized in that, The opening and closing assembly (41) includes: an opening and closing arm (411), multiple sets of the opening and closing arms (411) are fixedly connected to the outside of two sets of opening and closing can lids (403), and the bottom end of the opening and closing arm (411) is movably connected to the load-bearing seat (404); an arm shaft (412), the arm shaft (412) is connected through the multiple sets of the opening and closing arms (411); an arm plate (413), the arm plate (413) is movably connected to the arm shaft (412); a cylinder (414), two sets of the cylinders (414) are installed under the arm plate (413); and a cylinder seat (415), the cylinder seat (415) is provided on the two sets of the cylinders (414), and the cylinder seat (415) is fixedly connected to the load-bearing seat (404).

4. An automatic feeding device for continuous impregnation of wound iron cores according to claim 1, characterized in that, The flipping assembly (42) includes: a support plate (421), two sets of the support plates (421) being disposed on the inner wall of the dyeing tank (401); a flipping plate (422), the flipping plate (422) being movably connected between the two sets of the support plates (421); a motor a (423), the motor a (423) being mounted on the outside of one set of the support plates (421); an output wheel a (424), the output wheel a (424) being disposed on the motor a (423); a worm gear a (4241), the worm gear a (4241) being fixedly connected to the outside of the output wheel a (424); and a worm gear shaft a (4242), the worm gear shaft a (4242) being movably connected to the inner wall of the dyeing tank (401). One end of the worm a (4241) is connected to the worm gear shaft a (4242), which meshes with the worm a (4241); gear a (4243) is located at the top of the worm gear shaft a (4242); output wheel b (425) is movably connected to the flip plate (422); chuck (4251) is located on the output wheel b (425); pawls (4252) are three sets of pawls (4252) movably connected to the chuck (4251); motor b (426) is mounted on the outside of another set of support plates (421).

5. An automatic feeding device for continuous impregnation of wound iron cores according to claim 4, characterized in that, The flipping assembly (42) further includes: an oil storage ring (427), which is fixedly connected to the flipping plate (422); a heat preservation box a (4271), which is located outside the oil storage ring (427); a heat preservation box b (4272), which is located on the other side of the oil storage ring (427); a heat conduction ring (4273), which is located inside the oil storage ring (427); and two sets of electric heaters (4274), which are respectively located inside the heat preservation box a (4271) and the heat preservation box b (4272).

6. An automatic feeding device for continuous impregnation of wound iron cores according to claim 5, characterized in that, The storage assembly (43) includes: a material frame (431) disposed on the flip plate (422); a connecting pipe (432) with two sets of connecting pipes (432) disposed within the material frame (431); a support pipe (433) with multiple sets of support pipes (433) connected through the two sets of connecting pipes (432); a positioning rod (4331) movably connected within the multiple sets of support pipes (433); and a conical block (4332) with multiple sets of conical blocks (4332) fixedly connected to the positioning rod (4331). The conical block (4332) is movably connected to multiple sets of support tubes (433); a limiting ring (4333) is fixedly connected to the inner wall of the support tube (433); a fixing rod (4334) is sealed and inserted into the outer wall of the support tube (433); a spherical block (4335) is disposed at the outer end of the fixing rod (4334); and a spring (4336) is disposed on the outside of the fixing rod (4334), with the tail end of the spring (4336) connected to the support tube (433). The outer wall is fixedly connected; the iron core body (434), multiple sets of the iron core bodies (434) are installed on multiple sets of the support tubes (433); the iron core outer groove (4341), the iron core outer groove (4341) is opened on the iron core body (434); the card seat (435), the card seat (435) is located under the material frame (431); the deflection slot (4351), three sets of the deflection slots (4351) are opened on the inner wall of the card seat (435); the electromagnetic seat (4352), three sets of the electromagnetic seats (4352) are located on the card seat (435); the electromagnet (4353), the so The electromagnet (4353) is fitted into the inner wall of the three sets of deflection slots (4351); the oil guide ring (436) is fixedly connected to the underside of the card seat (435), and the oil guide ring (436) is sealed and movably connected to the oil storage ring (427); the limiting groove (4361) is formed in three sets of limiting grooves (4361) under the oil guide ring (436), and the three sets of limiting grooves (4361) are movably inserted into the three sets of claws (4252); the oil supply pipe (4362) is connected through the outside of the oil guide ring (4362).

7. An automatic feeding device for continuous impregnation of wound iron cores according to claim 1, characterized in that, The pressurization assembly (44) includes: a pressurization tank (441), two sets of pressurization tanks (441) being connected through to the outside of the two sets of side tank walls (402); a piston plate (442), the piston plate (442) being movably connected inside the pressurization tank (441); a hydraulic cylinder (443), the hydraulic cylinder (443) being installed on the outside of the pressurization tank (441); an output rod (444), the output rod (444) being located at the output end of the hydraulic cylinder (443); and an extension rod. Telescopic sleeve (4441), the telescopic sleeve (4441) is fixedly connected to the tail end of the output rod (444); tooth groove (4442), multiple sets of tooth grooves (4442) are opened on the outer wall of the telescopic sleeve (4441); guide rod (445), two sets of guide rods (445) are connected through to the outside of the pressure tank (441); seal (446), the seal (446) is provided at the connection between the guide rod (445) and the pressure tank (441).

8. An automatic feeding device for continuous impregnation of wound iron cores according to claim 7, characterized in that, The hydraulic output assembly (45) includes: a reversing valve body (451), with two sets of reversing valve bodies (451) respectively located on the outside of two sets of pressurized tanks (441); a valve core (452), which is located inside the reversing valve body (451); a valve stem (453), which is located on the movable part of the valve core (452); a hydraulic pipe a (454), which is connected through the reversing valve body (451); and a hydraulic pipe b (455). The hydraulic pipe b (455) is connected through the reversing valve body (451); check valves (456), multiple sets of check valves (456) are respectively provided at both ends of the hydraulic pipe a (454) and the hydraulic pipe b (455); output shaft (457), the output shaft (457) is installed at one end of the movable part of the valve core (452); paint inlet ring (458), the paint inlet ring (458) is fixedly connected to the outside of the reversing valve body (451); paint chamber (4581), the paint chamber (4581) is connected through the hydraulic pipe b (454) and the hydraulic pipe b (45 ... 581) Opened inside the paint inlet ring (458); partition (4582), two sets of partitions (4582) are fixedly connected to the inner wall of the paint chamber (4581); three-way pipe a (4583), the three-way pipe a (4583) is connected through to the top of the paint inlet ring (458), the three-way pipe a (4583) is connected through to the upper end of the hydraulic pipe a (454) and the hydraulic pipe b (455); three-way pipe b (4584), the three-way pipe b (4584) is connected through to the upper end of the paint inlet ring (458). Below the paint inlet ring (458), the three-way pipe b (4584) is connected through to the lower ends of the hydraulic pipe a (454) and the hydraulic pipe b (455); the output ring (459) is movably connected to the paint chamber (4581); the ring piston block (4591) is fixedly connected to the middle section of the outer wall of the output ring (459); the locking block (4592) is fixedly connected to the outside of the output ring (459).

9. An automatic feeding device for continuous impregnation of wound iron cores according to claim 4, characterized in that, The paint flow guiding assembly (46) includes: a flow guiding shaft (461), which is movably connected between two sets of support plates (421); a gear b (462), which is disposed at one end of the flow guiding shaft (461); a worm gear b (463), which is disposed on the flow guiding shaft (461); a worm wheel shaft b (464), which is disposed on one side of the flow guiding shaft (461); a blade a (465), which is disposed on the two sets of worm wheel shafts b (464); and multiple blades b (466), which are disposed on the flow guiding shaft (461).

10. A feeding method for an automatic feeding device for continuous impregnation of wound iron cores according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1, Batch placement of iron cores: By passing the iron core outer groove (4341) on the iron core body (434) through the support tube (433), multiple iron core bodies (434) can be batch-fitted onto multiple sets of support tubes (433), thereby realizing the batch connection and placement of iron core bodies (434) and support tubes (433); By driving the positioning rod (4331), multiple sets of conical blocks (4332) are moved. Through the conical structure, multiple sets of fixing rods (4334) are pushed out simultaneously to overcome the rebound force of the spring (4336), thereby suspending the iron core body (434) in the air. By using the spherical block (4335), the contact area between the iron core body (434) and the paint liquid is increased, thereby improving the paint liquid adhesion effect. Step 2, Frame Loading Process: The material frame (431) with the iron core placed is transported to the nearest point by the material conveying device (2); the gantry frame (302) is driven by the lower drive component of the gantry frame (302) to move along the ground rail (301) to above the material frame (431); the gripping seat (306) is lowered by the horizontal moving module (303) and the lifting module (304); and the gripping seat (306) is lifted by the two sets of grippers (307) on the gripping seat (306). The material frame (431) is picked up and moved to the top of the dyeing tank (401) via the transverse module (303) and the lifting module (304). The electric reel (308) unwinds the cable (309) and places the gripping seat (306) and the material frame (431) above the flip plate (422) inside the dyeing tank (401) through two sets of open and closed tank lids (403). The gripping seat (306) is then retracted and the loading is completed. Step 3, frame docking process: The three sets of claws (4252) are driven to extend outward by the driving component inside the chuck (4251), and the three sets of claws (4252) are movably inserted into the three sets of limiting grooves (4361) on the oil guide ring (436). The material frame (431) and the flip plate (422) are connected by deflection with the deflection groove (4351) on the card seat (435). After the connection is established, the material frame (431) is further fixed by contact adsorption between the metal claws (4252) and the electromagnet (4353) under the electromagnetic seat (4352), so as to ensure the stability of the iron core during dyeing. Two sets of cylinders (414) drive the opening and closing arms (411) and the arm shaft (412) to drive the two sets of opening and closing tank covers (403) to rotate along the support seat (404) to close, and seal the connection between the cable trough (4031) and the supporting cable (309); Step 4, First-stage dyeing process: The air in the dyeing tank (401) is extracted by the circulating vacuum pump (405) and air pipe a (4051). The air is injected into the pressurized tank (441) through air pipe b (4052), so that the environment inside the dyeing tank (401) is in a vacuum. Under vacuum, the bubbles in the paint liquid and the bubbles carried by the iron core are quickly discharged under pressure, effectively removing the bubbles in the paint liquid and improving the dyeing efficiency of the paint liquid on the iron core. The piston plate (442) is driven by the hydraulic cylinder (443) to move towards the dyeing tank (401), so that the paint liquid on the other side of the piston plate (442) connected to the dyeing tank (401) is quickly pushed into the dyeing tank (401). Under the pressure of the piston plate (442), the lower cavity of the dyeing tank (401) is quickly filled with paint liquid. The hydraulic pressure in the lower cavity will continue to increase due to the continuous drive of the piston plate (442). The efficiency of bubble discharge in the iron core is greatly improved by the combination of mechanical hydraulic pressure and vacuum hydraulic pressure, so that the paint liquid can quickly enter the gap of the iron core structure to complete the dyeing. Step 5, Second-stage dyeing process: During pressurization, electrical energy is converted into heat energy through the internal resistance of two sets of electric heaters (4274), and the oil in the oil storage ring (427) is heated through the heat conduction ring (4273). The hot oil is supplied from the oil storage ring (427) to the oil guide ring (436) through the circulating liquid supply of the circulating pump in the heat preservation box a (4271) and heat preservation box b (4272), and then flows to multiple sets of support pipes (433) through two sets of oil delivery pipes (4362) and connecting pipes (432). Due to the continuous circulation of the oil and the continuous heating of the heat-conducting ring (4273), the temperature at the center of the support tube (433) and the iron core body (434) rises or falls in a stepwise manner. By establishing a directional temperature field and flow field, multiple physical effects are coupled to achieve precise control of the bubble transport path, thereby optimizing the degassing dynamics process, thereby improving the bubble discharge efficiency and increasing the fluidity of the paint. Furthermore, the temperature field distribution can be optimized to ensure curing uniformity and increase the permeability and filling degree of the insulating paint, avoiding paint accumulation and sagging caused by local low temperature and high viscosity. Step 6, Three-stage dyeing process: During pressurization and heating, the motor a (423) and output wheel a (424) drive the tilting plate (422) and the material frame (431) placed on the tilting plate (422) to deflect, and the motor b (426) drives the material frame (431) on the tilting plate (422) to rotate, thereby realizing the all-round rotation drive of the iron core in the material frame (431). The deflection action destroys the adhesion between the bubbles and the surface of the iron core, promotes the detachment of bubbles and the flow of paint, prevents dead zones of bubbles, and improves the integrity and uniformity of the paint film; Step 7, Pressure Holding and Flow Guiding Process: The rotation of motor a (423) and output wheel a (424) drives the worm a (4241) to rotate. The meshing of worm shaft a (4242) and worm a (4241) drives gear a (4243) to rotate. After the output rod (444) is pressurized and extended to the specified limit length, the tooth groove (4442) contacts and meshes with gear a (4243). Through the forward and reverse reciprocating rotation of gear a (4243), the telescopic sleeve rod (4441) and piston plate (442) are driven to reciprocate and extend. This further causes the pressurized paint liquid to vibrate. The vibration of the paint liquid carries out the air bubbles that remain in the inner cavity of the iron core body (434), further improving the air bubble discharge efficiency, that is, improving the paint liquid adhesion efficiency. After pressurization, the paint is injected from the upper end of hydraulic pipe a (454) through the hydraulic differential. After passing through the reversing valve body (451), it flows out from the lower end. During injection, some paint is continuously diverted to the paint inlet ring (458) through the three-way pipe a (4583), causing the hydraulic pressure in the paint chamber (4581) above the ring piston block (4591) to continuously increase until the hydraulic pressure can overcome the return torque of the torsion spring in the output ring (459), causing the output ring (459) to deflect. Through the locking block (4592) on the output ring (459), the valve stem (453) is driven to rotate clockwise. The valve stem (453) drives the valve core (452) and the output shaft (457) to rotate clockwise, causing hydraulic pipe a (454) to close and hydraulic pipe b (455) to be unobstructed. The paint is injected from the lower end of hydraulic pipe b (455) and flows out from the upper end. The liquid flows out and is continuously diverted to the paint inlet ring (458) through the three-way pipe b (4584), causing the hydraulic pressure in the paint chamber (4581) below the ring piston block (4591) to continuously increase. The hydraulic pressure difference drives the valve core (452) and the output shaft (457) to rotate counterclockwise, thereby realizing the reciprocating rotation of the output shaft (457). The rotation of the output shaft (457) drives the paint guide assembly (46) to rotate reciprocally through the transmission component on the output shaft (457). The rotation drives the blade a (465) and multiple sets of blades b (466) to rotate reciprocally through the meshing of the worm gear b (463) and the worm wheel shaft b (464). The rotation drives the flow of paint in the dyeing tank (401), and the flow accelerates the efficiency of bubble discharge in the paint, thereby greatly improving the paint adhesion effect, effectively reducing the time required for dyeing, and improving production efficiency.

Citation Information

Patent Citations

  • Paint dipping and drying all-in-one machine for small motor machining

    CN113814109A

  • Uniform paint-dipping device for motor stator

    CN109013184A

  • Automatic feeding robot for paint dipping

    CN115634800A

  • Coil paint dipping device for motor rotor winding production

    CN116961344A

  • Motor stator dip coating equipment

    CN207947708U