A device for detecting the insulation property of paint film on enameled wire surface

Abstract

The invention discloses a device for detecting the insulation of a paint film on the surface of an enameled wire, and relates to the field of detection technology. The detection device comprises a detection box and a detection ring. A touch screen is installed on a box cover of the detection box, a control box is installed on the inner side of the box cover, the control box is electrically connected to the control screen, the detection ring is electrically connected to the control box, the enameled wire passes through the detection ring, one end of the enameled wire is connected to a circuit, the detection ring performs leakage detection on the enameled wire, when leakage occurs in the enameled wire, the control box detects a leakage pulse current through the detection ring, and determines through the pulse current that there is a problem with the paint film of the enameled wire and that the insulation does not meet the standard, brackets are installed on both sides of the detection box, and shaft racks are installed on the brackets, the rolled enameled wire can be installed on the shaft racks through a supporting shaft so that the enameled wire passes through the detection box, or the shaft racks are not used so that the unrolled enameled wire passes directly through the detection box.

Description

Technical Field

[0001] The invention relates to the field of detection technology, in particular to a device for detecting the insulation of a paint film on the surface of an enameled wire. Background Art

[0002] Enameled wire is mainly composed of conductor and insulation layer. The bare wire is annealed and softened, then painted and baked for many times. If the paint film on the surface of the enameled wire is scratched or damaged, it will cause the enameled wire to be scrapped. The reasons for the scratches and damages include: 1. The enameled wire contacts the machine equipment nearby, causing the paint film on the surface to be damaged; 2. There are impurities in the wheel groove of the guide wheel, causing scratches on the paint film on the surface; 3. The surface barbs of the wire drawing die scratch the paint film of the enameled wire, etc.

[0003] The existing patent publication number CN115932489A, an automatic detection device for the insulation performance of enameled wire, discloses the following technical solution: "The present invention relates to the technical field of insulation detection of enameled wire, specifically to an automatic detection device for the insulation performance of enameled wire, including a detection table, a battery is provided in a battery box, a conductive wire is provided on each of the conductive rings, and a power connection device is provided at each of the two ends of the detection table, the power connection device includes a fixed plate, a terminal is provided in the middle of the fixed plate, a terminal box is provided at the end of the terminal, a lighting lamp is provided near the corner of the lower surface of the shielding plate, a display is provided on the front face of the detection table, and a pressing device is also provided at the right end of the detection table; the automatic detection device for the insulation performance of enameled wire is provided with a power connection device, and the enameled wire end that needs to be connected to electricity is clamped by a clamping plate and a copper sheet under the cooperation of a screw rod and a twist handle to achieve the power connection coordination of the enameled wire, and the indicator light on the display table is connected under the cooperation of a conductive ring and a conductive wire, the enameled wire passes through two conductive rings, and when the outer wall of the enameled wire loses its insulation performance, the conductive ring is started by the enameled wire power connection indicator light to achieve leakage detection of the enameled wire.";

[0004] Although the existing patent discloses a device for detecting the insulation of enameled wires, there are still some shortcomings. During the detection, a conductive ring needs to be used to contact the enameled wire, and the enameled wire needs to be manually passed through the entire detection device. During the contact process between the wire ring and the enameled wire, the enameled wire is constantly moving, and the enameled wire will rub against the conductive ring, causing the paint film of the enameled wire to wear during the insulation detection process, resulting in unnecessary damage. Summary of the invention

[0005] The purpose of the present invention is to provide a device for detecting the insulation property of paint film on the surface of enameled wire to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting the insulation of paint film on the surface of enameled wire, comprising a filter, a touch screen and a bellows, and also comprising a detection box and a detection ring. Brackets are installed on both sides of the detection box, and a driving mechanism for pulling the enameled wire is installed on one of the brackets. The detection ring is installed inside the detection box, and the enameled wire passes through the detection box and the detection ring. A control box is arranged inside the detection box, and the detection ring, the touch screen and the bellows are all electrically connected to the control box. A wiring terminal is led out from the control box and electrically connected to one end of the enameled wire. When the enameled wire leaks electricity, a pulse current is formed in the enameled wire, the detection ring and the control box. The filter is installed at the air inlet of the bellows, the touch screen is installed on the outside of the box cover of the detection box, and the bellows is installed on the inside of the box cover of the detection box.

[0007] Side plates are symmetrically installed on both sides of the detection box, and a guide roller is rotatably installed between the two side plates on the same side. A plurality of annular grooves are provided on the guide roller. One side of the side plate is connected to the bracket through a support rod, and an axle frame is installed on the bracket. The driving mechanism is installed on the axle frame and the side plate in front of the moving direction of the enameled wire.

[0008] The driving mechanism includes a shaft sleeve rotatably mounted inside the shaft frame, and a driving motor and a driving roller mounted on the side plate. The driving roller penetrates the side plate and is connected to the output shaft of the driving motor. The driving roller and the shaft sleeve are driven by a belt.

[0009] A detachable semi-circular clamp is installed above the shaft frame, and the clamp fixes the support shaft and the sleeve supporting the enameled wire roll on the shaft frame. The drive motor rotates the sleeve through the drive roller and the belt. The sleeve is a hollow structure. The reel for winding the enameled wire is inserted into the sleeve, and the sleeve drives the reel to rotate. The reel pulls the enameled wire and makes the enameled wire flow through the detection box.

[0010] A "T"-shaped slideway is provided on one side of the bracket, and a connecting block and a lifting structure are slidably installed in the slideway. The output end of the lifting structure is connected to the connecting block, and the shaft frame is connected to the connecting block. The lifting structure is a hydraulic cylinder, and the support shaft supporting the enameled wire coil is installed on the shaft frame. The larger the diameter of the enameled wire coil, the greater the distance the lifting structure pushes the connecting block out of the slideway, and vice versa, the greater the distance the connecting block is put into the slideway. By adjusting the position of the connecting block by the lifting structure, the enameled wire is always in contact with the guide roller, and flows into and out of the detection box through the guide roller.

[0011] A plurality of racks are arranged inside the detection box, a plurality of tooth grooves are arranged on the upper end surface of the racks, a slide seat is slidably mounted on the racks, a moving motor is installed in the slide seat, a moving gear is installed at the output end of the moving motor, the moving gear is meshed with the racks, a support is installed above the slide seat, and the detection ring is installed on the support.

[0012] An annular groove is provided in the middle of the detection ring, and two delivery tubes are symmetrically provided on the groove. A substrate is installed at one end of the delivery tube, and the other end of the delivery tube is connected to an external liquid supply mechanism. The external liquid supply mechanism injects an aqueous solution with a temperature of 40-60°C into the delivery tube. A solution tank is provided inside the substrate, and the solution tank is connected to the delivery tube. An arc-shaped water tank with a "V"-shaped cross-section is provided in the middle of the substrate in the vertical direction. A plurality of water holes are provided on the water tank. The aqueous solution is sprayed out through the substrate and forms a water curtain outside the enameled wire. The water curtains sprayed by the two substrates completely cover the enameled wire. An electrode tube is provided inside the detection ring. The electrode tube is electrically connected to the control box through the detection line, and one end of the electrode tube is immersed in the water curtain. The electrode tube used for detection does not directly contact the enameled wire, thereby avoiding the problem of direct contact between the electrode tube and the enameled wire, causing the paint film on the surface of the enameled wire to wear;

[0013] A reflux cavity is provided inside the slide and the support, a channel connecting the groove and the reflux cavity is provided at the bottom of the detection ring, a reflux pipe connecting the reflux cavity is provided on one side of the slide, one end of the reflux pipe extends from the middle of the detection box, the delivery pipe is inserted in the reflux pipe, and one end of the detection line extends from the upper end of the support. When the enameled wire is tested, the external liquid supply mechanism injects an aqueous solution with a temperature of 40-60°C into the delivery pipe, and the aqueous solution is sprayed through the substrate and forms a water curtain outside the enameled wire. The water curtain sprayed by the two substrates completely covers the enameled wire, and one end of the electrode tube is immersed in the water curtain. When the enameled wire leaks electricity, the water curtain connects the circuit between the enameled wire and the electrode tube, so that the circuit between the enameled wire, the electrode tube, the detection line and the control box forms a loop and generates a pulse current. The control box detects the pulse current and displays the leakage through the touch screen. Since the enameled wire is constantly flowing, the entire circuit will be formed when the leakage position appears in the water curtain. When the leakage position is not in the water curtain, the circuit will be disconnected. Through the setting of the water curtain and the flow of the enameled wire, a pulse current is formed. The aqueous solution is sprayed onto the enameled wire, and when the enameled wire flows through the detection ring, the bellows make the air flow around the enameled wire. The aqueous solution has temperature. Through the flow of air and the temperature of 40-60℃, the aqueous solution evaporates quickly on the surface of the enameled wire, reducing the energy consumption required to dry the enameled wire. The conductivity of warm water is better than that of cold water.

[0014] The detection ring is symmetrically provided with two driving grooves in the axial direction, and the driving grooves are located on both sides of the groove. A rotating shaft is installed at the upper end of the groove, and a gear is rotatably installed on the rotating shaft. A driving ring is rotatably installed in the driving groove, and gear rings that fit the groove curved surface are arranged on the end faces of the two driving rings opposite to each other. The gear meshes with the two gear rings for transmission. A micro motor that drives one of the driving rings to rotate is arranged on the outside of the detection ring. A fan-shaped base is installed on the outside of each conveying tube inside the groove, and the conveying tube passes through the middle position of the base. The cross-section of the base is an "I" shape, and an opening is arranged in the middle of the end face of the base that fits the groove. The conveying tube and the detection line both pass through the opening. The conveying tube is a flexible corrugated tube, and sliders are slidably installed at the upper and lower ends of the base, and a cylinder is rotatably installed on the slider. The other end of the cylinder is rotatably connected to the base plate, and the two sliders are respectively connected to the two driving rings;

[0015] A plate sleeve is installed on the slider located above, and the two plate sleeves cooperate with each other to slide and install a carrier plate, and the electrode tube is inserted in the middle of the carrier plate. When the micro motor (not shown in the figure) drives the driving ring to rotate through gears, tooth grooves or wheels and belts, the other driving ring rotates synchronously driven by the gears. The rotation directions of the two driving rings are opposite, so that the two sliders on the same base are close to or away from each other, and then one end of the two cylinders is close to or away from each other. When one end of the two cylinders is close to each other, the two cylinders cooperate with each other to push the substrate to the center position of the detection ring. When one end of the two cylinders is away from each other, the two cylinders cooperate with each other to pull the substrate away from the center position of the detection ring. Through the radial movement of the substrate on the detection ring, the substrate can form a water curtain outside the enameled wires of various different diameters, thereby improving the detection range. During the radial movement of the substrate, the conveying pipe cooperates with the movement of the substrate through the bellows structure. When the slider at the top moves downward, the slider drives the plate sleeve to move downward, and the plate sleeve and the carrier plate slide against each other. When the plate sleeve follows the slider to move downward, the plate sleeve also moves outward in the radial direction of the detection ring, thereby causing relative sliding between the plate sleeve and the carrier plate, and the electrode tube also moves downward driven by the carrier plate. Conversely, when the slider at the top moves upward, the electrode tube also moves upward driven by the carrier plate. The carrier plate follows the movement of the plate sleeve box slider, so that the electrode tube automatically adapts to the change in the diameter of the enameled wire.

[0016] An airbag is arranged in the middle of the base, a through hole is arranged in the middle of the airbag for the delivery pipe to pass through, the middle of the airbag is connected to the base, the airbag is located between the two sliders, and the airbag is connected to the two cylinders through a pipeline;

[0017] Two rubber pads are arranged at one end of the substrate away from the cylinder, and the rubber pads are distributed on both sides of the "V"-shaped water tank. When the sliders on the same base are close to each other, the sliders cooperate with each other to squeeze the airbag, and the gas in the airbag enters the cylinder, so that the cylinder is extended, and finally, driven by the cylinder, the two substrates are attached together. When the enameled wire needs to pass through the detection box and the detection ring, one end of the enameled wire needs to be inserted into the detection box. The detection ring is driven by the slide seat to approach one end of the enameled wire that extends into the detection box. At the same time, the driving ring makes the two sliders close to each other, so that the two substrates clamp the enameled wire with the rubber pads. After that, the slide seat drives the detection ring to move, and the detection ring pulls the enameled wire, and one end of the enameled wire extends from the other end of the detection box. The staff can pull out the enameled wire extended from the detection ring. Through the setting of the detection ring and the slide seat, it is no longer necessary to manually pass the enameled wire through the detection ring and the detection box, and the automation of the enameled wire passing through the detection ring is realized.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Use electrode tube and water curtain to replace the detection ring that is in direct contact with the enameled wire. The electrode tube used for detection does not directly contact the enameled wire. The formed water curtain is connected to the enameled wire. When the enameled wire leaks electricity, the water curtain acts as a conductor to conduct the circuit, so that the control box can detect the leakage position and realize the insulation detection of the enameled wire paint film;

[0020] Compared with directly immersing the enameled wire in a pool of aqueous solution, the present invention only uses the formed water curtain to cover the enameled wire, so that the use of aqueous solution is more economical, and the entire detection process is more resource-saving.

[0021] 2. The two driving rings drive the two sliders on the same base to move closer or farther away from each other, so that one end of the two cylinders move closer or farther away from each other. The two cylinders cooperate with each other to pull the substrate away from the center of the detection ring. Through the radial movement of the substrate on the detection ring, the substrate can form a water curtain outside the enameled wires of various different diameters, thereby increasing the detection range.

[0022] The slider drives the plate sleeve to move. While the plate sleeve follows the movement of the slider, the plate sleeve also moves in the radial direction of the detection ring, thereby causing relative sliding between the plate sleeve and the carrier plate. The electrode tube also moves downward or upward driven by the carrier plate. By the carrier plate following the movement of the plate sleeve box slider, the electrode tube also automatically adapts to the change in the diameter of the enameled wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view of the overall structure of the present invention;

[0025] Figure 3An exploded view of the connection between the bracket and the shaft bracket of the present invention;

[0026] Figure 4 For the present invention Figure 2 Stereoscopic image in the middle AA direction;

[0027] Figure 5 A three-dimensional diagram of the connection between the detection ring, the support and the slide seat of the present invention;

[0028] Figure 6 It is a right side view of the detection ring of the present invention;

[0029] Figure 7 For the present invention Figure 6 Cross-section along the middle BB direction;

[0030] Figure 8 It is an exploded diagram of the detection ring of the present invention;

[0031] Fig. 9 It is a three-dimensional diagram of the connection between the base, the slider and the cylinder of the present invention.

[0032] In the figure: 1. detection box; 2. filter screen; 3. touch screen; 4. shaft frame; 5. side plate; 6. drive roller; 7. shaft sleeve; 8. guide roller; 9. bracket; 10. bellows; 11. rack; 12. slide seat; 13. return pipe; 14. detection line; 15. support; 16. detection ring; 17. drive ring; 18. cylinder; 19. substrate; 20. delivery pipe; 21. air bag; 22. carrier plate; 23. electrode tube; 24. gear ring; 25. rotating shaft; 26. gear; 27. base; 28. slider. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] Example: Figure 1 - Fig. 9As shown, the present invention provides a technical solution, a device for detecting the insulation of paint film on the surface of an enameled wire, comprising a filter 2, a touch screen 3 and a bellows 10, and also comprising a detection box 1 and a detection ring 16. Brackets 9 are installed on both sides of the detection box 1, and a driving mechanism for pulling the enameled wire is installed on one of the brackets 9. The detection ring 16 is installed inside the detection box 1, and the enameled wire passes through the detection box 1 and the detection ring 16. A control box is arranged inside the detection box 1, and the detection ring 16, the touch screen 3 and the bellows 10 are all electrically connected to the control box. A wiring terminal is led out from the control box and electrically connected to one end of the enameled wire. When the enameled wire leaks electricity, a pulse current is formed in the enameled wire, the detection ring 16 and the control box. The filter is installed at the air inlet of the bellows 10, the touch screen 3 is installed on the outside of the box cover of the detection box 1, and the bellows 10 is installed on the inside of the box cover of the detection box 1.

[0035] Side panels 5 are symmetrically installed on both sides of the detection box 1, and a guide roller 8 is rotatably installed between the two side panels 5 on the same side. The guide roller 8 is provided with a plurality of annular grooves, and wire holes for the enameled wire to pass through are provided at positions corresponding to the annular grooves on the detection box 1. One side of the side panel 5 is connected to a bracket 9 through a support rod, and an axis frame 4 is installed on the bracket 9. The driving mechanism is installed on the axis frame 4 and the side panel 5 in front of the moving direction of the enameled wire.

[0036] A "T"-shaped slideway is provided on one side of the bracket 9, and a connecting block and a lifting structure are slidably installed in the slideway. The output end of the lifting structure is connected to the connecting block, and the shaft frame 4 is connected to the connecting block. The support shaft supporting the enameled wire coil is installed on the shaft frame 4. The larger the diameter of the enameled wire coil, the greater the distance the lifting structure pushes the connecting block out of the slideway, and vice versa, the greater the distance the connecting block is put into the slideway. By adjusting the position of the connecting block by the lifting structure, the enameled wire is always in contact with the guide roller 8, and flows into and out of the detection box 1 through the guide roller 8.

[0037] The driving mechanism includes a shaft sleeve 7 rotatably mounted inside the shaft frame 4, and a driving motor and a driving roller 6 mounted on the side plate 5. The driving roller 6 penetrates the side plate 5 and is connected to the output shaft of the driving motor. The driving roller 6 and the shaft sleeve 7 are driven by a belt.

[0038] A detachable semi-annular clamping sleeve is installed above the shaft frame 4, and the clamping sleeve fixes the support shaft and the shaft sleeve 7 supporting the enameled wire coil on the shaft frame 4.

[0039] A plurality of racks 11 are arranged inside the detection box 1, and a plurality of tooth grooves are arranged on the upper end surface of the racks 11. A slide 12 is slidably mounted on the racks 11, and a moving motor is installed in the slide 12. A moving gear is installed at the output end of the moving motor, and the moving gear is meshed with the racks 11. A support 15 is installed above the slide 12, and a detection ring 16 is installed on the support 15.

[0040] An annular groove is provided in the middle of the detection ring 16, and two delivery pipes 20 are symmetrically provided on the groove. A substrate 19 is installed at one end of the delivery pipe 20, and the other end of the delivery pipe 20 is connected to an external liquid supply mechanism. The external liquid supply mechanism injects an aqueous solution with a temperature of 40-60°C into the delivery pipe 20. A solution tank is provided inside the substrate 19, and the solution tank is connected to the delivery pipe 20. An arc-shaped water tank with a "V"-shaped cross-section is provided in the middle of the substrate 19 in the vertical direction. Two rubber pads are provided at the end of the substrate 19 away from the cylinder 18, and the rubber pads are distributed on both sides of the "V"-shaped water tank.

[0041] The water tank is provided with a plurality of water holes, and the aqueous solution is sprayed out through the substrate 19 and forms a water curtain outside the enameled wire. The water curtains sprayed out by the two substrates 19 completely cover the enameled wire. An electrode tube 23 is provided inside the detection ring 16. The electrode tube 23 is electrically connected to the control box through the detection line 14, and one end of the electrode tube 23 is immersed in the water curtain.

[0042] A reflux cavity is provided inside the slide 12 and the support 15, a channel connecting the groove and the reflux cavity is provided at the bottom of the detection ring 16, a reflux pipe 13 connecting the reflux cavity is provided on one side of the slide 12, one end of the reflux pipe 13 extends from the middle of the detection box 1, the delivery pipe 20 is inserted in the reflux pipe 13, and one end of the detection line 14 extends from the upper end of the support 15.

[0043] The detection ring 16 is symmetrically provided with two driving grooves in the axial direction. The driving grooves are located on both sides of the groove. A rotating shaft 25 is installed at the upper end of the groove. A gear 26 is rotatably installed on the rotating shaft 25. A driving ring 17 is rotatably installed in the driving groove. The two driving rings 17 are provided with gear rings 24 that fit the curved surface of the groove on the opposite end faces. The gear 26 is meshed with the two gear rings 24 for transmission. A micro motor that drives one of the driving rings 17 to rotate is arranged on the outside of the detection ring 16. The gear is installed on the output shaft of the micro motor, and the gear groove is opened on the outer circle of the driving ring 17.

[0044] Inside the groove, a fan-shaped base 27 is installed on the outside of each delivery pipe 20. The delivery pipe 20 passes through the middle of the base 27. The cross section of the base 27 is an "I" shape. An opening is provided in the middle of the end surface of the base 27 that fits the groove. The delivery pipe 20 and the detection line 14 pass through the opening. The delivery pipe 20 is a flexible corrugated tube. Slide blocks 28 are slidably installed at the upper and lower ends of the base 27. The cylinder 18 is rotatably installed on the slider 28. The other end of the cylinder 18 is rotatably connected to the base plate 19. The two sliders 28 are respectively connected to the two drive rings 17;

[0045] A plate sleeve is installed on the upper slider 28 , and the two plate sleeves cooperate with each other to slide and install the carrier plate 22 , and the electrode tube 23 is inserted in the middle position of the carrier plate 22 .

[0046] When one end of the two cylinders 18 moves away from each other, the two cylinders 18 cooperate with each other to pull the substrate 19 in the direction away from the center of the detection ring 16. Through the radial movement of the substrate 19 on the detection ring 16, the substrate 19 can form a water curtain outside the enameled wires of various diameters, thereby increasing the detection range. During the radial movement of the substrate 19, the delivery pipe 20 cooperates with the movement of the substrate 19 through the bellows structure. When the slider 28 located above moves downward, the slider 28 drives the plate sleeve to move downward, and the plate sleeve and the carrier plate 22 slide against each other. When the plate sleeve follows the slider 28 to move downward, the plate sleeve also moves outward in the radial direction of the detection ring 16, thereby causing relative sliding between the plate sleeve and the carrier plate 22, and the electrode tube 23 also moves downward under the drive of the carrier plate 22. Conversely, when the slider 28 located above moves upward, the electrode tube 23 also moves upward under the drive of the carrier plate 22. Through the carrier plate 22 following the movement of the plate sleeve box slider 28, the electrode tube 23 also automatically adapts to the change in the diameter of the enameled wire.

[0047] An airbag 21 is arranged in the middle of the base 27. A through hole for the conveying pipe 20 to pass through is arranged in the middle of the airbag 21. The middle position of the airbag 21 is connected to the base 27. The airbag 21 is located between the two sliders 28. The airbag 21 is connected to the two cylinders 18 through a pipeline.

[0048] The working principle of the present invention is as follows: the support shaft for supporting the enameled wire coil is installed on the shaft frame 4, the reel for winding the enameled wire is inserted into the shaft sleeve 7, the control system in the control box is controlled by the touch screen 3, one end of the enameled wire is inserted into the detection box 1, the detection ring 16 is driven by the slide 12 to approach the end of the enameled wire inserted into the detection box 1, the micro motor drives the drive ring 17 to rotate through the gears and tooth grooves, the other drive ring 17 is driven by the gear 26 to rotate synchronously, and the rotation directions of the two drive rings 17 are opposite, so that the two sliders 28 on the same base 27 are close to each other, so that one end of the two cylinders 18 is close to each other, when the one end of the two cylinders 18 is close to each other When the detection ring 16 is moved, the two cylinders 18 cooperate with each other to push the substrate 19 to the center position of the detection ring 16, and the two sliders 28 cooperate with each other to squeeze the airbag 21, and the gas in the airbag 21 enters the cylinder 18 to extend the cylinder 18. Finally, driven by the cylinder 18, the two substrates 19 are fitted together, and the two substrates 19 clamp the enameled wire with rubber pads. After that, the slide 12 drives the detection ring 16 to move, and the detection ring 16 pulls the enameled wire and extends one end of the enameled wire from the other end of the detection box 1. The staff pulls out the enameled wire extending from the detection ring 16, and winds the enameled wire around the reel for winding the enameled wire, and one end of the enameled wire is electrically connected to the wiring terminal.

[0049] The driving motor rotates the shaft sleeve 7 through the driving roller 6 and the belt, and the shaft sleeve 7 drives the reel to rotate. The reel pulls the enameled wire, so that the enameled wire flows through the detection box 1 and the detection ring 16.

[0050] The detection ring 16 moves to the middle position of the detection box 1 under the drive of the slide 12. When the enameled wire is detected, the external liquid supply mechanism injects a water solution with a temperature of 40-60°C into the delivery tube 20. The water solution is sprayed through the substrate 19 and forms a water curtain outside the enameled wire. The water curtain sprayed by the two substrates 19 completely covers the enameled wire, and one end of the electrode tube 23 is immersed in the water curtain. When the enameled wire leaks electricity, the water curtain connects the circuit between the enameled wire and the electrode tube 23, so that the circuit between the enameled wire, the electrode tube 23, the detection line 14 and the control box forms a loop and generates a pulse current. The control box detects the pulse current, displays the leakage through the touch screen 3, and completes the insulation test of the enameled wire paint film.

[0051] Since the enameled wire is constantly flowing, the entire circuit will be formed when the leakage position appears in the water curtain. When the leakage position is not in the water curtain, the circuit will be disconnected, and a pulse current will be formed through the setting of the water curtain and the flow of the enameled wire.

[0052] The aqueous solution is sprayed onto the enameled wire, and when the enameled wire flows through the detection ring 16, the bellows 10 makes air flow around the enameled wire, and the aqueous solution has temperature. Through the air flow and the temperature of 40-60°C, the aqueous solution quickly evaporates on the surface of the enameled wire.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for detecting the insulation of a paint film on the surface of an enameled wire, comprising a filter screen (2), a touch screen (3) and a bellows (10), characterized in that: It also comprises a detection box (1) and a detection ring (16), wherein brackets (9) are installed on both sides of the detection box (1), wherein a driving mechanism for pulling the enameled wire is installed on one of the brackets (9), wherein the detection ring (16) is installed inside the detection box (1), and the enameled wire passes through the detection box (1) and the detection ring (16), wherein a control box is arranged inside the detection box (1), wherein the detection ring (16), the touch screen (3) and the bellows (10) are all electrically connected to the control box, wherein a terminal is drawn out from the control box and electrically connected to one end of the enameled wire, and when the enameled wire leaks electricity, a pulse current is formed in the enameled wire, the detection ring (16) and the control box, wherein the filter is installed at the air inlet of the bellows (10), wherein the touch screen (3) is installed on the outside of the box cover of the detection box (1), and wherein the bellows (10) is installed on the inside of the box cover of the detection box (1); The detection box (1) is provided with a plurality of racks (11) inside, the upper end surface of the racks (11) is provided with a plurality of tooth grooves, a slide seat (12) is slidably mounted on the racks (11), a moving motor is mounted inside the slide seat (12), a moving gear is mounted at the output end of the moving motor, the moving gear is meshed with the racks (11), a support (15) is mounted above the slide seat (12), and the detection ring (16) is mounted on the support (15); The detection ring (16) is provided with an annular groove in the middle, and two delivery pipes (20) are symmetrically arranged on the groove. A substrate (19) is installed at one end of the delivery pipe (20), and the other end of the delivery pipe (20) is connected to an external liquid supply mechanism. The external liquid supply mechanism injects an aqueous solution with a temperature of 40-60° C. into the delivery pipe (20). A solution tank is provided inside the substrate (19), and the solution tank is connected to the delivery pipe (20). An arc-shaped water tank with a "V"-shaped cross section is provided in the middle of the substrate (19) in the vertical direction. The water tank is provided with a plurality of water holes. The aqueous solution is sprayed out through the substrate (19) and forms a water curtain outside the enameled wire. The water curtains sprayed by the two substrates (19) completely cover the enameled wire. An electrode tube (23) is provided inside the detection ring (16). The electrode tube (23) is electrically connected to the control box through the detection line (14), and one end of the electrode tube (23) is immersed in the water curtain. A reflux cavity is provided inside the slide seat (12) and inside the support seat (15); a channel connecting the groove and the reflux cavity is provided at the bottom of the detection ring (16); a reflux pipe (13) connecting the reflux cavity is provided on one side of the slide seat (12); one end of the reflux pipe (13) extends from the middle of the detection box (1); the delivery pipe (20) is inserted into the reflux pipe (13); and one end of the detection line (14) extends from the upper end of the support seat (15); The detection ring (16) is symmetrically provided with two drive grooves in the axial direction, the drive grooves are located on both sides of the groove, a rotating shaft (25) is installed at the upper end of the groove, a gear (26) is rotatably installed on the rotating shaft (25), a drive ring (17) is rotatably installed in the drive groove, and gear rings (24) that fit the groove curved surface are provided on the mutually opposite end surfaces of the two drive rings (17), the gear (26) meshes with the two gear rings (24) for transmission, a micro motor that drives one of the drive rings (17) to rotate is provided on the outside of the detection ring (16), and a micro motor that drives one of the drive rings (17) to rotate is installed on the inside of the groove on the outside of each conveying tube (20). A fan-shaped base (27) is provided, and a delivery pipe (20) passes through the middle of the base (27). The cross section of the base (27) is an "I" shape. An opening is provided in the middle of the end surface of the base (27) that fits the groove. The delivery pipe (20) and the detection line (14) both pass through the opening. The delivery pipe (20) is a flexible corrugated pipe. Slide blocks (28) are slidably mounted at the upper and lower ends of the base (27). A cylinder (18) is rotatably mounted on the slide block (28). The other end of the cylinder (18) is rotatably connected to a base plate (19). The two slide blocks (28) are respectively connected to two drive rings (17); A plate sleeve is installed on the slider (28) located at the top, and the two plate sleeves cooperate with each other to slide and install a carrier plate (22), and the electrode tube (23) is inserted in the middle position of the carrier plate (22).

2. The device for detecting the insulation property of the paint film on the surface of an enameled wire according to claim 1, characterized in that: Side plates (5) are symmetrically mounted on both sides of the detection box (1); a guide roller (8) is rotatably mounted between the two side plates (5) on the same side; a plurality of annular grooves are arranged on the guide roller (8); one side of the side plate (5) is connected to a bracket (9) via a support rod; an axle frame (4) is mounted on the bracket (9); and a driving mechanism is mounted on the axle frame (4) and the side plate (5) in front of the moving direction of the enameled wire.

3. The device for detecting the insulation property of the paint film on the surface of an enameled wire according to claim 2, characterized in that: The driving mechanism comprises a shaft sleeve (7) rotatably mounted inside the shaft frame (4), and a driving motor and a driving roller (6) mounted on the side plate (5); the driving roller (6) penetrates the side plate (5) and is connected to the output shaft of the driving motor; a belt is used to drive the driving roller (6) and the shaft sleeve (7); A detachable semi-annular clamping sleeve is installed above the shaft frame (4), and the clamping sleeve fixes the support shaft and the shaft sleeve (7) supporting the enameled wire coil on the shaft frame (4).

4. A device for detecting the insulation of paint film on the surface of an enameled wire according to any one of claims 2 or 3, characterized in that: A "T"-shaped slideway is provided on one side of the bracket (9), a connecting block and a lifting structure are slidably installed in the slideway, the output end of the lifting structure is connected to the connecting block, and the shaft frame (4) is connected to the connecting block.

5. The device for detecting the insulation property of the paint film on the surface of an enameled wire according to claim 1, characterized in that: An airbag (21) is disposed in the middle of the base (27), a through hole for the delivery pipe (20) to pass through is disposed in the middle of the airbag (21), the middle of the airbag (21) is connected to the base (27), the airbag (21) is located between the two sliders (28), and the airbag (21) is connected to the two cylinders (18) through a pipeline; Two rubber pads are provided at one end of the base plate (19) away from the cylinder (18), and the rubber pads are distributed on both sides of the "V"-shaped water groove.

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