Coil vacuum dipping equipment and process

Abstract

The present invention discloses a coil vacuum varnishing device, which relates to the technical field of coil vacuum varnishing processing. The coil vacuum varnishing device comprises a coil body, a bottom plate, and a varnishing tank. The coil body comprises multiple groups and is arranged inside the varnishing tank. During the varnishing process of the coil body, the coil vacuum varnishing device circulates the liquid in the varnishing tank. Through the circulation, the paint liquid can be more evenly distributed on various parts of the coil, reducing the pores, defects, and unevenness of the coating, thereby improving the quality and firmness of the coating. In addition, during the circulation process, the circulating paint liquid can better penetrate into the interior of the insulation structure, filling the gaps and pores in the insulation material, enhancing the insulation performance of the electrical coil, effectively preventing problems such as leakage, discharge, and insulation breakdown, and further ensuring the varnishing processing effect of the coil body.

Description

Technical Field

[0001] The present invention relates to the technical field of coil vacuum varnishing processing, in particular to coil vacuum varnishing equipment and a process thereof. Background Art

[0002] During the production and processing of coils, in order to enhance insulation performance, improve mechanical strength and optimize electromagnetic performance, the coils need to be dipped in paint.

[0003] During the process of varnish dipping of coils, vacuum treatment is performed during the process to achieve the goals of improving electrical insulation performance, enhancing electrical performance and life, optimizing the structural performance of electrical coils, improving production efficiency and reducing costs, and improving product quality and life. However, during the vacuum varnish dipping process, due to insufficient wetting pressure of the potting system, excessive use of paint thinner, and the influence of ambient humidity and temperature, bubbles will be generated inside the paint liquid. The presence of bubbles will affect the quality of the coil varnish dipping process. Summary of the Invention

[0004] The object of the present invention is to provide a coil vacuum varnishing equipment and process thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a coil vacuum dipping device, comprising a coil body, a bottom plate and a dipping tank, wherein the coil body is provided in a plurality of groups and arranged inside the dipping tank, the upper end hinge of the dipping tank is provided with a cover plate for covering the dipping tank, the cover plate is provided with a vacuum pump for evacuating the interior of the dipping tank, and further comprising a mounting assembly provided inside the dipping tank for mounting and placing the coil body, a paint injection assembly for injecting paint into the dipping tank, and a vibration assembly for vibrating the dipping tank during the dipping process.

[0006] A rotating assembly for assisting the rotational connection of the paint dipping tank is provided between the bottom plate and the bottom of the paint dipping tank, the rotating assembly comprising a mounting ring fixed to the upper end of the bottom plate, a circular plate being rotatably connected inside the mounting ring, a plurality of support plates for supporting the circular plate are fixed between the circular plate and the bottom of the paint dipping tank, a swing assembly for swinging the circular plate inside the mounting ring is provided above the bottom plate, and a circulation assembly for assisting the paint circulation inside the paint dipping tank is provided below the paint dipping tank;

[0007] The circulation assembly includes a piston cylinder fixed above the circular plate, the lower end of the piston cylinder is slidably connected to a piston rod, the outer side of the piston cylinder is provided with a connecting assembly for connecting the piston rod, the upper end of the piston cylinder is connected to the paint dipping tank with two sets of control pipes, the interiors of the two control pipes are respectively fixed with a first one-way valve and a second one-way valve, the conducting direction of the first one-way valve is from the interior of the paint dipping tank to the interior of the piston cylinder, and the conducting direction of the second one-way valve is opposite to that of the first one-way valve, and the bottom plate is provided with a transmission assembly for driving the piston rod to rise and fall;

[0008] The transmission assembly includes a mounting bracket fixed to the upper end of the base plate, a fixing rod fixed on the mounting bracket, a transmission plate fixed to the outer side of the fixing rod through a connecting block, inclined surfaces are provided on both sides of the transmission plate, and a transmission pin for transmitting against the inclined surfaces is fixed to the outer side of the piston rod.

[0009] Preferably, the connecting assembly includes an L-shaped plate fixed to the lower end of the piston cylinder, and a plurality of first T-shaped rods are slidably connected to the L-shaped plate, one end of each first T-shaped rod is fixed to the piston rod, and a first spring is sleeved on the outer side of each first T-shaped rod.

[0010] Preferably, the swing assembly includes multiple groups of V-grooves opened on the upper end of the circular plate, and two adjacent groups of V-grooves are connected to each other. A connecting plate is provided above the base plate, and a mounting pin is fixed on the connecting plate, and the mounting pin is slidably connected to the V-groove.

[0011] Preferably, the paint injection assembly includes a piston box fixed to the upper end of the base plate, a piston plate is slidably connected to the piston box, the piston box is connected to the interior of the paint dipping tank through a delivery pipe, and a lifting assembly for lifting the piston plate is provided on the base plate.

[0012] Preferably, the lifting assembly includes a first L-shaped frame fixed to the upper end of the base plate, a threaded rod being rotatably connected to the first L-shaped frame, a threaded tube being threadedly engaged with the threaded rod, one end of the threaded tube being fixed to the upper end of the piston plate, a second L-shaped frame being fixed to the upper end of the first L-shaped frame, a rotating shaft being rotatably connected to the second L-shaped frame, one end of the rotating shaft being fixed to one end of the threaded rod, a driving motor for driving the threaded rod being installed on the second L-shaped frame, and a guide assembly for auxiliary guidance during the lifting and lowering process of the piston plate is provided between the first L-shaped frame and the piston plate.

[0013] Preferably, the guide assembly includes a sleeve fixed to the upper end of the piston plate, a sliding rod is slidably connected to the sleeve, and one end of the sliding rod is fixed to the first L-shaped frame.

[0014] Preferably, the vibration assembly includes a strip plate, the connecting plate is fixed on one side of the strip plate, a plurality of knocking rods for knocking against the outside of the paint dipping tank are arranged and fixed on one side of the strip plate, an extrusion assembly for extruding the strip plate is provided on the rotating shaft, and a reset assembly for resetting the strip plate after extrusion is provided on the first L-shaped frame.

[0015] Preferably, the extrusion assembly includes a driving disk fixed to the outside of the rotating shaft, and a protrusion for pushing against the strip plate is fixed in an annular array on the outside of the driving disk;

[0016] The reset assembly includes a fixing frame fixed on the first L-shaped frame, and a plurality of second T-shaped rods are slidably connected to the fixing frame. One end of each second T-shaped rod is fixed to the strip plate, and a second spring is sleeved on the outer side of each second T-shaped rod.

[0017] Preferably, the installation and placement component includes a mounting rod, a plurality of support platforms are evenly distributed on the outside of the mounting rod, an insertion rod for inserting and installing the coil body is fixed to the upper end of the support platform, a slot for inserting and fixing one end of the mounting rod is fixed inside the paint dipping tank, and a handle for picking up and driving the mounting rod is fixed to the upper end of the mounting rod.

[0018] A coil vacuum impregnation process comprises the following steps:

[0019] S1: During the process of varnishing the coil body, the coil body to be processed is respectively inserted on each insertion rod to install the coil body. After multiple sets of coil bodies are inserted and installed on each support platform of the installation rod, the lower end of the entire installation rod is inserted into the slot so that the coil body installed on the installation rod is inside the varnishing tank, completing the installation and placement of the coil body inside the varnishing tank;

[0020] S2: After the coil body is installed, the motor is driven to drive the rotating shaft to rotate. During the rotation of the rotating shaft, the threaded rod is driven to rotate. During the rotation of the threaded rod, the mutual meshing transmission between the threaded rod and the threaded tube and the sliding guide of the sleeve and the slide rod cause the rear piston plate to move toward the inside of the piston box after being subjected to force.

[0021] S3: During the movement of the piston plate, the paint liquid inside the piston box is transported to the interior of the paint dipping tank through the delivery pipe by the piston plate, and the coil body is immersed in the paint dipping process. During the paint dipping process, the cover plate is closed and the interior of the paint dipping tank is vacuumed, thereby achieving the purpose of improving the insulation performance of the electrical appliance, enhancing the performance and life of the electrical appliance, optimizing the structural performance of the electrical coil, improving production efficiency and reducing costs, and improving product quality and life.

[0022] S4: In the process of the piston plate moving downwardly by the rotation of the rotating shaft, the rotation of the rotating shaft drives the driving disc to rotate synchronously. In the process of the driving disc rotating, the strip plates are caused to reciprocate by the sequential counteraction of the protrusions and the strip plates and the resetting action of the reset assembly on the strip plates after being stressed. In the process of the reciprocating motion of the strip plates, the outer side of the paint dipping tank is struck against each other, causing the paint dipping tank to vibrate. The vibration of the paint dipping tank facilitates the rapid rise of bubbles inside the paint on the paint dipping tank and the discharge of bubbles outwards under the action of the pumping pressure, thereby facilitating the paint dipping process of the auxiliary coil body.

[0023] S5: During the reciprocating motion of the strip plate, the connecting plate is driven to move synchronously. During the motion of the connecting plate, the mounting pins are offset against the inner walls of the V-grooves, driving the circular plate to reciprocate inside the mounting ring. During the reciprocating motion of the circular plate, the paint immersion tank is driven to swing back and forth through the support plate. The reciprocating swing of the paint immersion tank causes the knocking rods to strike against each other at different positions on the outside of the paint immersion tank during the vibration knocking process, thereby ensuring the effect of vibration and de-bubbling inside the paint immersion tank.

[0024] S6: During the reciprocating swing of the circular plate, the piston cylinder is driven to move synchronously. During the movement of the piston cylinder, the connecting function of the connecting assembly drives the piston rod to swing synchronously. During the swing of the piston rod, the transmission pin on the piston rod intermittently abuts against the inclined surface on the transmission plate. Through the abutment between the transmission pin and the inclined surface and the reset action of the connecting assembly on the piston rod after movement, the piston rod, after being subjected to force, reciprocates up and down on the piston cylinder.

[0025] S7: Since the conduction direction of the first one-way valve is from the inside of the paint immersion tank to the inside of the piston cylinder, the conduction direction of the second one-way valve is set opposite to that of the first one-way valve. During the reciprocating up and down motion of the piston rod on the piston cylinder, the paint inside the paint immersion tank is sucked into the inside of the piston cylinder and then flows back to the inside of the paint immersion tank through extrusion, so that the liquid inside the paint immersion tank is circulated. Through circulation, the paint liquid can be more evenly distributed in various parts of the coil, reducing the pores, defects and unevenness of the coating, thereby improving the quality and firmness of the coating. In addition, during the circulation process, the circulating paint liquid can better penetrate into the insulation structure, fill the gaps and pores in the insulating material, enhance the insulation performance of the electrical coil, effectively prevent problems such as leakage, discharge and insulation breakdown, and further ensure the paint processing effect of the coil body.

[0026] This type of coil vacuum dipping equipment vibrates the dipping tank through a vibration component during the dipping process of the coil body. The vibration of the dipping tank facilitates the rapid rise of bubbles inside the dipping paint in the dipping tank and discharges them outward under the action of suction pressure, which facilitates the dipping process of the coil body. In the process of dipping paint, the liquid inside the dipping tank is circulated. Through circulation, the paint liquid can be more evenly distributed in various parts of the coil, reducing the pores, defects and unevenness of the coating, thereby improving the quality and firmness of the coating. In the process of circulation, the circulating paint liquid can better penetrate into the insulation structure, fill the gaps and pores in the insulating material, enhance the insulation performance of the electrical coil, effectively prevent leakage, discharge and insulation breakdown and other problems, and further ensure the dipping effect of the coil body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the installation and placement component structure of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the vibration assembly, reset assembly and extrusion assembly of the present invention;

[0030] Figure 4 This is a schematic structural diagram of the paint injection assembly, lifting assembly and guide assembly of the present invention;

[0031] Figure 5 It is a schematic structural diagram of the rotating assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the circulation component of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the swing assembly of the present invention;

[0034] Figure 8 It is a schematic structural diagram of the transmission assembly of the present invention;

[0035] Figure 9 Schematic diagram of the connection assembly structure of the present invention.

[0036] In the figure: 101, bottom plate; 102, paint dipping tank; 103, cover plate; 104, coil body; 2, installation and placement assembly; 201, installation rod; 202, support platform; 203, insertion rod; 204, slot; 205, handle; 3, paint injection assembly; 301, piston box; 302, piston plate; 303, delivery pipe; 4, lifting assembly; 401, first L-shaped frame; 402, threaded rod; 403, threaded pipe; 404, second L-shaped frame; 405, rotating shaft; 406, driving motor; 5, guide assembly; 501, sleeve; 502, sliding rod; 6, vibration assembly; 601, strip plate; 602, knocking rod; 7, reset assembly; 701, fixing frame; 702, second T-shaped rod; 703, second Spring; 8. Extrusion assembly; 801. Drive disk; 802. Protrusion; 9. Rotation assembly; 901. Mounting ring; 902. Round plate; 903. Support plate; 10. Swing assembly; 1001. V-groove; 1002. Connecting plate; 1003. Mounting pin; 11. Circulation assembly; 1101. Piston cylinder; 1102. Piston rod; 1103. Control tube; 1104. First one-way valve; 1105. Second one-way valve; 12. Connecting assembly; 1201. L-shaped plate; 1202. First T-shaped rod; 1203. First spring; 13. Transmission assembly; 1301. Mounting frame; 1302. Fixing rod; 1303. Connecting block; 1304. Transmission plate; 1305. Inclined surface; 1306. Transmission pin. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1-9 The present invention provides a technical solution: a coil vacuum dipping device, comprising a coil body 104, a bottom plate 101 and a dipping tank 102, wherein the coil body 104 is provided in multiple groups and is arranged inside the dipping tank 102, and the upper end hinge of the dipping tank 102 is provided with a cover plate 103 for covering the dipping tank 102, and the cover plate 103 is provided with a vacuum pump for evacuating the interior of the dipping tank 102, and further comprising a mounting and placement component 2 arranged inside the dipping tank 102 for mounting and placing the coil body 104, a paint injection component 3 for injecting paint into the dipping tank 102 is provided on the bottom plate 101, and a vibration component 6 for vibrating the dipping tank 102 during the dipping process is provided on one side of the dipping tank 102;

[0039] A rotating assembly 9 is provided between the bottom plate 101 and the bottom of the paint dipping tank 102 for assisting the rotational connection of the paint dipping tank 102. The rotating assembly 9 includes a mounting ring 901 fixed to the upper end of the bottom plate 101. A circular plate 902 is rotatably connected to the interior of the mounting ring 901. A plurality of support plates 903 are fixed between the circular plate 902 and the bottom of the paint dipping tank 102 for supporting the circular plate 902. A swing assembly 10 is provided above the bottom plate 101 for swinging the circular plate 902 inside the mounting ring 901. A circulation assembly 11 is provided below the paint dipping tank 102 for assisting the paint circulation inside the paint dipping tank 102.

[0040] The circulation component 11 includes a piston cylinder 1101 fixed above the circular plate 902, the lower end of the piston cylinder 1101 is slidably connected to the piston rod 1102, and the outer side of the piston cylinder 1101 is provided with a connecting component 12 for connecting the piston rod 1102, and the upper end of the piston cylinder 1101 is connected to the paint dipping tank 102 by two sets of control pipes 1103, and the interiors of the two control pipes 1103 are respectively fixed with a first one-way valve 1104 and a second one-way valve 1105. The conduction direction of the first one-way valve 1104 is from the interior of the paint dipping tank 102 to the interior of the piston cylinder 1101, and the conduction direction of the second one-way valve 1105 is opposite to that of the first one-way valve 1104. A transmission component 13 for lifting and lowering the piston rod 1102 is provided on the bottom plate 101;

[0041] The transmission assembly 13 includes a mounting frame 1301 fixed to the upper end of the base plate 101. A fixing rod 1302 is fixed to the mounting frame 1301. A transmission plate 1304 is fixed to the outer side of the fixing rod 1302 via a connecting block 1303. The transmission plate 1304 has inclined surfaces 1305 on both sides. A transmission pin 1306 is fixed to the outer side of the piston rod 1102 for contact with the inclined surfaces 1305 to transmit power.

[0042] During the paint dipping process of the coil body 104, the paint dipping tank 102 is vibrated by the vibration component 6. The vibration of the paint dipping tank 102 facilitates the rapid rise of bubbles inside the paint on the paint dipping tank 102 and discharges them outward under the action of suction pressure, which facilitates the paint dipping process of the auxiliary coil body 104. In the process of paint dipping, the liquid inside the paint dipping tank 102 is circulated. Through circulation, the paint liquid can be more evenly distributed in various parts of the coil, reducing the pores, defects and unevenness of the coating, thereby improving the quality and firmness of the coating. In the process of circulation, the circulating paint liquid can better penetrate into the insulation structure, fill the gaps and pores in the insulating material, enhance the insulation performance of the electrical coil, effectively prevent leakage, discharge and insulation breakdown and other problems, and further ensure the paint dipping effect of the coil body 104.

[0043] Preferably, the connecting assembly 12 includes an L-shaped plate 1201 fixed to the lower end of the piston cylinder 1101, and a plurality of first T-shaped rods 1202 are slidably connected to the L-shaped plate 1201, one end of each first T-shaped rod 1202 is fixed to the piston rod 1102, and a first spring 1203 is sleeved on the outer side of each first T-shaped rod 1202; through the plurality of first T-shaped rods 1202, the movement of the piston rod 1102 after being subjected to force is guided, and through the first springs 1203, the reset movement of the piston rod 1102 after movement is facilitated.

[0044] Preferably, the swing assembly 10 includes a plurality of groups of V-grooves 1001 provided on the upper end of the circular plate 902, and two adjacent groups of V-grooves 1001 are arranged to communicate with each other. A connecting plate 1002 is provided above the bottom plate 101, and a mounting pin 1003 is fixed on the connecting plate 1002, and the mounting pin 1003 is slidably connected to the V-groove 1001; during the reciprocating motion of the strip plate 601, the connecting plate 1002 is driven to move synchronously, and during the movement of the connecting plate 1002, the mounting pin 1003 is offset against the inner walls of each V-groove 1001, driving the circular plate 902 to reciprocate inside the mounting ring 901 under force, and during the reciprocating motion of the circular plate 902, the paint dipping tank 102 is driven to swing back and forth through the support plate 903.

[0045] The lacquer filling device 302 is a kind of lacquer filling device, and it is a kind of lacquer filling device that is used for the lacquer filling of the lacquer filling device 301.

[0046] Preferably, the lifting assembly 4 includes a first L-shaped frame 401 fixed to the upper end of the base plate 101, a threaded rod 402 is rotatably connected to the first L-shaped frame 401, a threaded tube 403 is threadedly engaged with the threaded rod 402, one end of the threaded tube 403 is fixed to the upper end of the piston plate 302, a second L-shaped frame 404 is fixed to the upper end of the first L-shaped frame 401, a rotating shaft 405 is rotatably connected to the second L-shaped frame 404, one end of the rotating shaft 405 is fixed to one end of the threaded rod 402, a driving motor 406 for driving the threaded rod 402 is installed on the second L-shaped frame 404, and a shaft 406 for driving the threaded rod 402 is provided between the first L-shaped frame 401 and the piston plate 302. The guide assembly 5 assists in guiding the piston plate 302 during the lifting and lowering process; the guide assembly 5 includes a sleeve 501 fixed to the upper end of the piston plate 302, and a slide rod 502 is slidably connected to the sleeve 501, and one end of the slide rod 502 is fixed to the first L-shaped frame 401; the driving motor 406 drives the rotating shaft 405 to rotate, and during the rotation of the rotating shaft 405, the threaded rod 402 is driven to rotate. During the rotation of the threaded rod 402, the mutual engagement transmission between the threaded rod 402 and the threaded tube 403 and the sliding guiding effect of the sleeve 501 and the slide rod 502 are used to make the piston plate 302 move toward the interior of the piston box 301 after being subjected to force.

[0047] Preferably, the vibration component 6 includes a strip plate 601, a connecting plate 1002 is fixed on one side of the strip plate 601, and a plurality of knocking rods 602 for knocking against the outer side of the paint dipping tank 102 are arranged and fixed on one side of the strip plate 601, and an extrusion component 8 for squeezing the strip plate 601 is provided on the rotating shaft 405, and a reset component 7 for resetting the strip plate 601 after squeezing is provided on the first L-shaped frame 401; through the extrusion component 8 and the reset component 7, the strip plate 601 is subjected to force and reciprocates, and in the process of the reciprocating motion of the strip plate 601, the outer side of the paint dipping tank 102 is knocked against it, so that the paint dipping tank 102 vibrates, and through the vibration of the paint dipping tank 102, the bubbles inside the paint on the paint dipping tank 102 are facilitated to rise rapidly and be discharged outward under the action of suction and pressure, so as to facilitate the paint dipping process of the auxiliary coil body 104.

[0048] Preferably, the extrusion assembly 8 includes a driving disk 801 fixed to the outside of the rotating shaft 405, and a protrusion 802 for pushing against the strip plate 601 is fixed in an annular array on the outside of the driving disk 801;

[0049] The reset assembly 7 includes a fixing frame 701 fixed to the first L-shaped frame 401. A plurality of second T-shaped rods 702 are slidably connected to the fixing frame 701. One end of each second T-shaped rod 702 is fixed to the strip plate 601. A second spring 703 is sleeved on the outer side of each second T-shaped rod 702. The plurality of second T-shaped rods 702 guide the movement of the strip plate 601 after being subjected to force, and the plurality of second springs 703 facilitate the reset movement of the strip plate 601 after movement.

[0050] In the process of the piston plate 302 moving downward by the rotation of the rotating shaft 405, the rotation of the rotating shaft 405 drives the driving disk 801 to rotate synchronously. In the process of the rotation of the driving disk 801, the strip plate 601 after being subjected to force is caused to reciprocate by the successive counteraction between the various protrusions 802 and the strip plate 601 and the reset action of the reset component 7 on the strip plate 601 after being subjected to force.

[0051] Preferably, the installation and placement component 2 includes a mounting rod 201, and a plurality of support platforms 202 are evenly distributed on the outside of the mounting rod 201. The upper end of the support platform 202 is fixed with an insertion rod 203 for inserting and installing the coil body 104, and the interior of the paint immersion tank 102 is fixed with a slot 204 for inserting and fixing one end of the mounting rod 201, and the upper end of the mounting rod 201 is fixed with a handle 205 for picking up and driving the mounting rod 201; in the process of paint immersion processing of the coil body 104, the coil body 104 to be processed is respectively inserted on each insertion rod 203, and the coil body 104 is installed. After multiple groups of coil bodies 104 are inserted and installed on each support platform 202 of the mounting rod 201, the lower end of the entire mounting rod 201 is inserted on the slot 204, so that the coil body 104 installed and placed on the mounting rod 201 is inside the paint immersion tank 102, completing the installation and placement of the coil body 104 inside the paint immersion tank 102.

[0052] A coil vacuum impregnation process comprises the following steps:

[0053] S1: During the process of varnishing the coil bodies 104, the coil bodies 104 to be processed are respectively inserted on the respective insertion rods 203, and the coil bodies 104 are installed. After multiple groups of coil bodies 104 are inserted and installed on the respective support platforms 202 of the installation rods 201, the lower ends of the entire installation rods 201 are inserted into the slots 204, so that the coil bodies 104 installed and placed on the installation rods 201 are inside the varnishing tank 102, and the installation and placement of the coil bodies 104 inside the varnishing tank 102 is completed;

[0054] S2: After the coil body 104 is installed, the motor 406 is driven to drive the rotating shaft 405 to rotate. During the rotation of the rotating shaft 405, the threaded rod 402 is driven to rotate. During the rotation of the threaded rod 402, the mutual engagement between the threaded rod 402 and the threaded tube 403 and the sliding guidance of the sleeve 501 and the slide rod 502 cause the rear piston plate 302 to move toward the interior of the piston box 301 after being subjected to force.

[0055] S3: During the movement of the piston plate 302, the varnish liquid in the piston box 301 is transported to the interior of the varnish tank 102 through the delivery pipe 303 by the piston plate 302, and the coil body 104 placed therein is immersed, and the coil body 104 is subjected to varnish dipping. During the varnish dipping process, the cover plate 103 is closed and the interior of the varnish dipping tank 102 is vacuumed, thereby achieving the goals of improving the insulation performance of the electrical appliance, enhancing the performance and life of the electrical appliance, optimizing the structural performance of the electrical coil, improving production efficiency, reducing costs, and improving product quality and life;

[0056] S4: In the process of the piston plate 302 moving downward by the rotation of the rotating shaft 405, the rotation of the rotating shaft 405 drives the driving disk 801 to rotate synchronously. In the process of the rotation of the driving disk 801, the strip plate 601 is caused to reciprocate by the sequential counteraction of each protrusion 802 and the strip plate 601 and the reset component 7 on the strip plate 601 after the force is applied. In the process of the reciprocating motion of the strip plate 601, the outer side of the paint dipping tank 102 is struck against it, causing the paint dipping tank 102 to vibrate. The vibration of the paint dipping tank 102 facilitates the rapid rise of bubbles inside the paint on the paint dipping tank 102 and the discharge of bubbles outward under the action of the pumping pressure, thereby facilitating the paint dipping process of the auxiliary coil body 104.

[0057] S5: During the reciprocating motion of the strip plate 601, the connecting plate 1002 is driven to move synchronously. During the motion of the connecting plate 1002, the mounting pins 1003 are offset against the inner walls of the V-grooves 1001, driving the circular plate 902 to reciprocate inside the mounting ring 901. During the reciprocating motion of the circular plate 902, the support plate 903 drives the paint immersion tank 102 to swing back and forth. The reciprocating swing of the paint immersion tank 102 causes the knocking rods 602 to strike against each other at different positions on the outside of the paint immersion tank 102 during the vibration knocking process, thereby ensuring the effect of vibrating and removing bubbles inside the paint immersion tank 102.

[0058] S6: During the reciprocating swing of the circular plate 902, the piston cylinder 1101 is driven to move synchronously. During the movement of the piston cylinder 1101, the connecting function of the connecting assembly 12 drives the piston rod 1102 to swing synchronously. During the swing of the piston rod 1102, the transmission pin 1306 on the piston rod 1102 intermittently abuts against the inclined surface 1305 on the transmission plate 1304. The abutment between the transmission pin 1306 and the inclined surface 1305 and the reset function of the connecting assembly 12 on the piston rod 1102 after movement cause the piston rod 1102, after being subjected to force, to reciprocate up and down on the piston cylinder 1101.

[0059] S7: Since the conduction direction of the first one-way valve 1104 is from the inside of the paint tank 102 to the inside of the piston cylinder 1101, the second one-way valve 1105 is set in the opposite direction of the conduction direction of the first one-way valve 1104. During the reciprocating up and down motion of the piston rod 1102 on the piston cylinder 1101, the paint inside the paint tank 102 is sucked into the inside of the piston cylinder 1101 and then flows back to the inside of the paint tank 102 through extrusion, so that the liquid inside the paint tank 102 is circulated. Through circulation, the paint liquid can be more evenly distributed in various parts of the coil, reducing the pores, defects and unevenness of the coating, thereby improving the quality and firmness of the coating. In addition, during the circulation process, the circulating paint liquid can better penetrate into the insulation structure, fill the gaps and pores in the insulating material, enhance the insulation performance of the electrical coil, effectively prevent problems such as leakage, discharge and insulation breakdown, and further ensure the paint processing effect of the coil body 104.

Claims

1. A coil vacuum impregnation device, comprising: A coil body (104), a bottom plate (101) and a paint immersion tank (102), wherein the coil body (104) comprises multiple groups and is arranged inside the paint immersion tank (102), the upper end hinge of the paint immersion tank (102) is provided with a cover plate (103) for covering the paint immersion tank (102), and the cover plate (103) is provided with a vacuum pump for evacuating the interior of the paint immersion tank (102); It is characterized by further comprising: A mounting assembly (2) for mounting and placing the coil body (104) is provided inside the paint immersion tank (102); a paint injection assembly (3) for injecting paint into the paint immersion tank (102) is provided on the bottom plate (101); and a vibration assembly (6) for vibrating the paint immersion tank (102) during the paint immersion process is provided on one side of the paint immersion tank (102); A rotating assembly (9) is provided between the bottom plate (101) and the bottom of the paint immersion tank (102) for assisting the paint immersion tank (102) in rotational connection, the rotating assembly (9) comprising a mounting ring (901) fixed to the upper end of the bottom plate (101), a circular plate (902) being rotatably connected inside the mounting ring (901), a plurality of support plates (903) being fixed between the circular plate (902) and the bottom of the paint immersion tank (102), a swinging assembly (10) for swinging the circular plate (902) inside the mounting ring (901) being provided above the bottom plate (101), and a circulation assembly (11) for assisting paint circulation inside the paint immersion tank (102) being provided below the paint immersion tank (102); The circulation component (11) includes a piston cylinder (1101) fixed above the circular plate (902), the lower end of the piston cylinder (1101) is slidably connected to the piston rod (1102), the outer side of the piston cylinder (1101) is provided with a connecting component (12) for connecting the piston rod (1102), the upper end of the piston cylinder (1101) and the paint immersion tank (102) are connected to two groups of control pipes (1103), the interiors of the two control pipes (1103) are respectively fixed with a first one-way valve (1104) and a second one-way valve (1105), the conduction direction of the first one-way valve (1104) is from the interior of the paint immersion tank (102) to the interior of the piston cylinder (1101), and the conduction direction of the second one-way valve (1105) is opposite to that of the first one-way valve (1104), and the bottom plate (101) is provided with a transmission component (13) for transmitting the piston rod (1102) to move up and down. The transmission assembly (13) includes a mounting frame (1301) fixed to the upper end of the base plate (101), a fixing rod (1302) fixed to the mounting frame (1301), a transmission plate (1304) fixed to the outer side of the fixing rod (1302) via a connecting block (1303), inclined surfaces (1305) formed on both sides of the transmission plate (1304), and a transmission pin (1306) for resisting against the inclined surface (1305) for transmission fixed to the outer side of the piston rod (1102); The swing assembly (10) includes a plurality of groups of V-shaped grooves (1001) provided on the upper end of the circular plate (902), two adjacent groups of V-shaped grooves (1001) are arranged in communication with each other, a connecting plate (1002) is provided above the bottom plate (101), a mounting pin (1003) is fixed on the connecting plate (1002), and the mounting pin (1003) is slidably connected to the V-shaped groove (1001); The paint injection assembly (3) includes a piston box (301) fixed to the upper end of the bottom plate (101), a piston plate (302) being slidably connected to the piston box (301), the piston box (301) being connected to the interior of the paint dipping tank (102) via a delivery pipe (303), and a lifting assembly (4) for lifting and lowering the piston plate (302) is provided on the bottom plate (101); The lifting assembly (4) comprises a first L-shaped frame (401) fixed to the upper end of the base plate (101), a threaded rod (402) being rotatably connected to the first L-shaped frame (401), a threaded tube (403) being threadedly engaged with the threaded rod (402), one end of the threaded tube (403) being fixed to the upper end of the piston plate (302), a second L-shaped frame (404) being fixed to the upper end of the first L-shaped frame (401), a rotating shaft (405) being rotatably connected to the second L-shaped frame (404), one end of the rotating shaft (405) being fixed to one end of the threaded rod (402), a driving motor (406) for driving the threaded rod (402) being installed on the second L-shaped frame (404), and a guide assembly (5) for assisting in guiding the piston plate (302) during the lifting process is provided between the first L-shaped frame (401) and the piston plate (302); The vibration component (6) includes a strip plate (601), the connecting plate (1002) is fixed to one side of the strip plate (601), a plurality of knocking rods (602) for knocking against the outer side of the paint dipping tank (102) are arranged and fixed on one side of the strip plate (601), an extrusion component (8) for extruding the strip plate (601) is provided on the rotating shaft (405), and a reset component (7) for resetting the strip plate (601) after being squeezed is provided on the first L-shaped frame (401).

2. The coil vacuum impregnation equipment according to claim 1, characterized in that: The connecting assembly (12) comprises an L-shaped plate (1201) fixed to the lower end of the piston cylinder (1101), and a plurality of first T-shaped rods (1202) are slidably connected to the L-shaped plate (1201), one end of each first T-shaped rod (1202) is fixed to the piston rod (1102), and a first spring (1203) is sleeved on the outer side of each first T-shaped rod (1202).

3. The coil vacuum impregnation equipment according to claim 2, characterized in that: The guide assembly (5) comprises a sleeve (501) fixed to the upper end of the piston plate (302), a sliding rod (502) being slidably connected to the sleeve (501), and one end of the sliding rod (502) is fixed to the first L-shaped frame (401).

4. The coil vacuum impregnation equipment according to claim 3, characterized in that: The extrusion assembly (8) comprises a driving disk (801) fixed on the outside of the rotating shaft (405), and a protrusion (802) for pushing against the strip plate (601) is fixed on the outer annular array of the driving disk (801); The reset assembly (7) comprises a fixing frame (701) fixed on the first L-shaped frame (401), a plurality of second T-shaped rods (702) being slidably connected to the fixing frame (701), one end of each second T-shaped rod (702) being fixed to the strip plate (601), and a second spring (703) being sleeved on the outer side of each second T-shaped rod (702).

5. The coil vacuum impregnation equipment according to claim 4, characterized in that: The installation and placement component (2) comprises an installation rod (201), a plurality of support platforms (202) are evenly distributed on the outside of the installation rod (201), an insertion rod (203) for inserting and installing the coil body (104) is fixed at the upper end of the support platform (202), a slot (204) for inserting and fixing one end of the installation rod (201) is fixed inside the paint dipping tank (102), and a handle (205) for picking up and driving the installation rod (201) is fixed at the upper end of the installation rod (201).

6. A coil vacuum dipping process, which refers to the coil vacuum dipping equipment according to claim 5, characterized in that: The following steps are involved: S1: During the process of performing a paint dipping process on the coil body (104), the coil body (104) to be processed is respectively inserted on each insertion rod (203), and the coil body (104) is installed. After multiple groups of coil bodies (104) are inserted and installed on each support platform (202) of the installation rod (201), the lower end of the entire installation rod (201) is inserted into the slot (204), so that the coil body (104) installed and placed on the installation rod (201) is located inside the paint dipping tank (102), completing the installation and placement of the coil body (104) inside the paint dipping tank (102); S2: After the coil body (104) is installed and placed, the rotating shaft (405) is driven to rotate by the driving motor (406). During the rotation of the rotating shaft (405), the threaded rod (402) is driven to rotate. During the rotation of the threaded rod (402), the piston plate (302) moves toward the interior of the piston box (301) through the mutual meshing transmission between the threaded rod (402) and the threaded tube (403) and the sliding guide effect of the sleeve (501) and the slide rod (502). S3: During the movement of the piston plate (302), the varnish liquid inside the piston box (301) is transported to the interior of the varnish tank (102) through the piston plate (302) via the transport pipe (303), and the coil body (104) after placement is immersed therein, and the coil body (104) is subjected to varnishing. During the varnishing process, the cover plate (103) is covered and the interior of the varnish tank (102) is vacuumed, thereby achieving the purpose of improving the insulation performance of the electrical appliance, enhancing the performance and life of the electrical appliance, optimizing the structural performance of the electrical coil, improving production efficiency, reducing costs, and improving product quality and life; S4: In the process of the piston plate (302) moving downward by the rotation of the rotating shaft (405), the rotation of the rotating shaft (405) drives the driving disk (801) to rotate synchronously. In the process of the driving disk (801) rotating, the strip plate (601) is reciprocated by the sequential counteraction between each protrusion (802) and the strip plate (601) and the resetting action of the reset component (7) on the strip plate (601) after the force is applied. In the process of the reciprocating motion of the strip plate (601), the outer side of the varnish jar (102) is struck against the strip plate, causing the varnish jar (102) to vibrate. The vibration of the varnish jar (102) facilitates the rapid rise of bubbles inside the varnish on the varnish jar (102) and the discharge of bubbles outwards under the action of the pumping pressure, thereby facilitating the varnishing process of the auxiliary coil body (104); S5: During the reciprocating motion of the strip plate (601), the connecting plate (1002) is driven to move synchronously. During the motion of the connecting plate (1002), the mounting pin (1003) is offset against the inner wall of each V-shaped groove (1001), driving the circular plate (902) to reciprocate inside the mounting ring (901). During the reciprocating motion of the circular plate (902), the paint immersion tank (102) is driven to swing back and forth through the support plate (903). The reciprocating swing of the paint immersion tank (102) causes the knocking rods (602) to strike against each other at different positions on the outside of the paint immersion tank (102) during the vibration knocking process, thereby ensuring the effect of vibrating and removing bubbles inside the paint immersion tank (102); S6: During the reciprocating swing of the circular plate (902), the piston cylinder (1101) is driven to move synchronously. During the movement of the piston cylinder (1101), the piston rod (1102) is driven to swing synchronously through the connecting action of the connecting assembly (12). During the swing of the piston rod (1102), the transmission pin (1306) on the piston rod (1102) is intermittently abutted against the inclined surface (1305) on the transmission plate (1304). Through the abutting action of the transmission pin (1306) and the inclined surface (1305) and the reset action of the connecting assembly (12) on the piston rod (1102) after movement, the piston rod (1102) subjected to force is caused to reciprocate up and down on the piston cylinder (1101); S7: Since the conducting direction of the first one-way valve (1104) is from the inside of the varnish immersion tank (102) to the inside of the piston cylinder (1101), the second one-way valve (1105) is set in the opposite direction to the conducting direction of the first one-way valve (1104). When the piston rod (1102) reciprocates up and down on the piston cylinder (1101), the varnish inside the varnish immersion tank (102) is sucked into the inside of the piston cylinder (1101) and then flows back to the inside of the varnish immersion tank (102) through extrusion, so that the liquid inside the varnish immersion tank (102) is circulated. Through the circulation, the varnish liquid can be more evenly distributed in various parts of the coil, reducing the pores, defects and unevenness of the coating, thereby improving the quality and firmness of the coating. In addition, during the circulation process, the circulating varnish liquid can better penetrate into the interior of the insulation structure, fill the gaps and pores in the insulation material, enhance the insulation performance of the electrical coil, effectively prevent leakage, discharge and insulation breakdown problems, and further ensure the varnish processing effect of the coil body (104).

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