Transformer core rubber coating automatic winding machine and adhesive tape winding method thereof

Abstract

The present invention discloses an automatic winding machine for transformer core rubber coating and a tape winding method thereof. The automatic winding machine includes a first fixed fixture and a second fixed fixture that can rotate and are symmetrically mounted on both sides of a symmetry axis of a turntable. The turntable is connected to a rotating drive mechanism that drives its rotation. The outer side of the turntable is provided with a tape supply mechanism, an automatic rubber tapping mechanism, a loading and unloading conveyor line, and also includes a loading and unloading mechanism, which has a structure of moving the transformer at the output end of the loading and unloading conveyor line to the first fixed fixture and moving the transformer on the first fixed fixture to the unloading conveyor line. This scheme winds the tape onto two workpieces through the rotation of the turntable, and does not require manual continuous attachment of the tape to the workpieces. Combined with the loading and unloading conveyor line, the unloading and unloading conveyor line and the loading and unloading mechanism, the loading and unloading can be performed automatically without manual operation, thereby reducing labor intensity. At the same time, the loading and unloading operations can be performed simultaneously, which greatly improves the overall work rhythm and efficiency.

Description

Technical Field

[0001] The invention relates to the field of transformer processing equipment, in particular to a transformer iron core rubber coating automatic winding machine and an adhesive tape winding method thereof. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core (magnetic core). Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc.

[0003] After the transformer is assembled, it is often necessary to wrap multiple layers of insulating tape around the outer periphery of the transformer. For example, the transformer insulating tape wrapping machine with application number 2019201134942 applied by the applicant requires manual placement of the transformer into a fixed claw, and the head of the tape is pasted onto the transformer before the equipment is manually started for winding. Since the tape needs to be pasted each time, the work efficiency is low and the work intensity is high.

[0004] In addition, in the above structure, the staff must first remove the workpiece on the fixed claw and then place the workpiece to be coated on the fixed claw. The loading and unloading must be carried out one after the other and cannot be synchronized. Moreover, both loading and unloading operations require manual operation, with a low degree of automation and high labor intensity. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a transformer core rubber-coated automatic winding machine and a tape winding method thereof.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] The invention discloses an automatic winding machine for rubber coating of transformer core, comprising a first fixed jig and a second fixed jig, both of which have structures for placing and limiting transformers, wherein the first fixed jig and the second fixed jig can both rotate and are symmetrically arranged on both sides of a symmetry axis of a turntable, wherein the turntable is connected to a rotating drive mechanism for driving its rotation, and an adhesive tape supply mechanism, an automatic rubber tapping mechanism, a loading conveyor line and a unloading conveyor line are arranged on the outer side of the turntable, wherein the blade of the automatic rubber tapping mechanism can be moved to the gap between the first fixed jig and the second fixed jig; and further comprising a loading and unloading mechanism, which has a structure for moving the transformer at the output end of the loading conveyor line to the first fixed jig and for moving the transformer on the first fixed jig to the unloading conveyor line.

[0008] Preferably, in the transformer core rubber-coated automatic winding machine, the first fixing fixture and the second fixing fixture have the same structure, and both include a contour-profiling limit groove, and the groove bottom plate of the contour-profiling limit groove is a magnet.

[0009] Preferably, in the automatic winding machine for rubber coating of transformer core, a through hole is formed on the turntable, two support plates are mounted on the through hole, the first fixed jig and the second fixed jig are respectively arranged on a support plate, and a motor for driving the first fixed jig and the second fixed jig to rotate is arranged at the bottom of the support plate.

[0010] Preferably, in the transformer core rubber-coated automatic winding machine, the motor is connected to a power source through two electrode blocks connected to positive and negative poles, and a floating electrode with a fixed connection position and capable of floating up and down is connected to the motor.

[0011] Preferably, in the automatic winding machine for rubber coating of transformer core, a tensioning mechanism is arranged between the tape supply mechanism and the turntable, and the tensioning mechanism includes a first guide limit shaft, a second guide limit shaft and a tensioning shaft located therebetween, and the tensioning shaft is vertically arranged on one end of a swing arm close to the second guide limit shaft, and the other end of the swing arm is pivotally connected to the base, and one end of a spring is connected to the middle position of the swing arm, and the other end of the spring is connected to a fixed block on the side of the base.

[0012] Preferably, in the automatic rubber-coating winding machine for transformer core, the automatic rubber tapping mechanism includes a slider, the slider is slidably disposed on a guide rail and is connected to a telescopic mechanism that drives it to move, the telescopic mechanism includes a motor and a crank-connecting rod mechanism, and the blade is disposed at the front end of the slider.

[0013] Preferably, in the transformer core rubber-coated automatic winding machine, a roller is slidably provided on the slider, and the circumferential surface of the roller is close to the opposite sides of the first fixing fixture and the second fixing fixture.

[0014] Preferably, the transformer core rubber coating automatic winding machine also includes

[0015] The turning mechanism is located between the turntable and the unloading conveyor line, and has a structure for rotating the transformer on the turntable by 90° around an axis parallel to the horizontal plane so that the pins of the transformer face downwards;

[0016] An electrical parameter detection mechanism has a structure capable of clamping the primary pin and the secondary pin of the transformer and applying current to test the electrical parameters of the transformer;

[0017] The loading and unloading mechanism also includes a

[0018] A third pneumatic gripper has a structure for moving the transformer between the flipping mechanism and the unloading conveyor line;

[0019] The fourth pneumatic clamp has a structure for moving the transformer flipped on the flipping mechanism to the electrical parameter detection mechanism.

[0020] Preferably, in the transformer core rubber-coated automatic winding machine, the flipping mechanism comprises a rotating cylinder, a mounting plate is arranged on the rotating shaft of the rotating cylinder, and a magnet plate is arranged on the mounting plate.

[0021] The tape winding method of the transformer core rubber coating automatic winding machine comprises the following steps:

[0022] S1, the loading and unloading mechanism drives the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper thereon to respectively grab the output end of the loading conveyor line, the first fixed fixture, the turning mechanism, and the transformer on the electrical parameter detection mechanism, and move the transformer grabbed by the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper to the first fixed fixture, the turning mechanism, the electrical parameter detection mechanism, and the unloading conveyor line;

[0023] S2, after the turntable rotates 180°, the first fixed fixture rotates at least one circle; at the same time, the automatic rubber tapping mechanism cuts the tape between the first fixed fixture and the second fixed fixture; at the same time, the flipping mechanism drives the transformer thereon to flip 90° so that its pins face downward; at the same time, the testing device tests the transformer thereon; at the same time, the unloading conveyor line unloads the material;

[0024] S3, repeat S1-S2.

[0025] The advantages of the technical solution of the present invention are mainly reflected in:

[0026] This solution is exquisitely designed and simple in structure. By setting two fixed fixtures and setting them on a turntable, the tape can be wound around the two workpieces through the rotation of the turntable. There is no need for manual work to continuously attach the tape to the workpieces to be coated, thereby effectively improving the coating efficiency and reducing labor intensity. Combined with the loading and unloading conveyor line, the unloading conveyor line and the loading and unloading mechanism, the feeding can be carried out automatically without manual operation, reducing labor intensity. At the same time, the loading and unloading operations can be carried out simultaneously, greatly improving the overall work rhythm and improving efficiency.

[0027] The first fixing fixture and the second fixing fixture fix the transformer by magnetic adsorption, which greatly simplifies the structure of the fixing fixture and reduces the difficulty of implementation.

[0028] In this solution, the self-rotating structures of the first fixed fixture and the second fixed fixture are electrically connected using a floating motor, which effectively reduces the complexity of wiring, simplifies the overall structure, and reduces the difficulty of implementation.

[0029] The tensioning mechanism of the present invention can effectively ensure that the tape is in a tensioned state, avoid wrinkles, and ensure the stability of the coating.

[0030] The automatic rubber tapping mechanism uses a motor and a crank-connecting rod mechanism, which can move quickly and is easy to control. At the same time, the combination of rollers can effectively attach the cut tape to the two transformers to avoid wrinkles and effectively ensure the quality of the coating.

[0031] The setting of the flipping mechanism can effectively realize the flipping of the transformer, providing convenience for subsequent processing. At the same time, it is fixed by magnetic adsorption, which greatly simplifies the structure of the mechanism and makes it easier to implement. Combined with the electrical parameter detection mechanism and the loading and unloading mechanism, it can automatically perform testing.

[0032] The test mechanism of this solution sets the jack used for pin connection as a waist-shaped hole, which can adapt to the test requirements of transformers of different sizes. It has good versatility and applicability, good flexibility, and is conducive to reducing the number of test devices and reducing enterprise costs.

[0033] The whole equipment has high integration, is automated, works at a fast pace, and greatly improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a top view of the first embodiment of the present invention (the loading and unloading mechanism is hidden in the figure);

[0035] FIG2 is a front view of the first embodiment of the present invention (the tape supply mechanism and the automatic rubber tapping mechanism are hidden in the figure);

[0036] 3 is a schematic diagram of the structure of the motor and the floating motor for driving the first fixed fixture and the second fixed fixture to rotate in the present invention;

[0037] Figure 4 is a schematic diagram of a rotary drive mechanism of the present invention;

[0038] Figure 5 is a top view of a second embodiment of the present invention having a tensioning mechanism;

[0039] Figure 6 It is a structural schematic diagram of the tensioning mechanism and the tape supply mechanism in the present invention;

[0040] Figure 7 It is a structural schematic diagram of the automatic rubber tapping mechanism in the present invention;

[0041] Figure 8 It is a front view of the third embodiment of the present invention having a turnover mechanism and an electrical parameter detection mechanism (the tape supply mechanism and the automatic rubber tapping mechanism are hidden in the figure);

[0042] Fig. 9 It is a top view of the third embodiment of the present invention having a turning mechanism and an electrical parameter detection mechanism (the loading and unloading mechanism is hidden in the figure);

[0043] Fig.10is a cross-sectional view of the electrical parameter detection mechanism of the present invention;

[0044] Fig.11 It is a top view of the electrical parameter detection mechanism of the present invention. DETAILED DESCRIPTION

[0045] The purpose, advantages and features of the present invention will be illustrated and explained by the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0046] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0047] The transformer core glue automatic winding machine disclosed by the present invention is described below in conjunction with the accompanying drawings. Figure 1 , Attachment Figure 2 As shown, it includes a machine table 30, on which a first fixed fixture 1 and a second fixed fixture 2 are arranged, both of which have a structure for placing and limiting a transformer, the first fixed fixture 1 and the second fixed fixture 2 can both rotate and are symmetrically mounted on both sides of a symmetry axis of a turntable 3, the turntable 3 is connected to a rotating drive mechanism that drives its rotation, and the outer side of the turntable is provided with a tape supply mechanism 5, an automatic rubber tapping mechanism 6, a loading conveyor line 7 and a unloading conveyor line 10, the blade of the automatic rubber tapping mechanism 6 can be moved to the gap between the first fixed fixture 1 and the second fixed fixture 2; the transformer core rubber coating automatic winding machine also includes a loading and unloading mechanism 8, which has a structure for moving the transformer at the output end of the loading conveyor line 7 to the first fixed fixture 1 and moving the transformer on the first fixed fixture 1 to the unloading conveyor line 10.

[0048] Specifically, the first fixing jig 1 and the second fixing jig 2 are respectively used to limit the inductor to be coated with the tape, and they have the same structure. During the coating, only the middle area of ​​the outer periphery of the core needs to be coated with the tape, and during the coating, other areas of the transformer can be sunk into the first fixing jig 1 and the second fixing jig 2. The corresponding first fixing jig 1 and the second fixing jig 2 both include a contoured limiting groove consistent with the local structural shape of the transformer to be sunk therein, and the groove bottom plate of the contoured limiting groove is a magnet, so that the pins of the transformer can be adsorbed in the contoured limiting groove without being skewed due to the pulling force of the tape.

[0049] Under normal circumstances, if attached Figure 1 , Attachment Figure 3 As shown, the first fixed jig 1 and the second fixed jig 2 are located in the upper and lower semicircles of the turntable 3. Since the first fixed jig 1 and the second fixed jig 2 need to rotate, in order to facilitate the realization, a through hole 31 is formed on the turntable 3, and two support plates 32 are mounted on the through hole 31. The first fixed jig 1 and the second fixed jig 2 are respectively arranged on a support plate 32, and a motor 33 for driving the first fixed jig 1 and the second fixed jig 2 to rotate is arranged at the bottom of the support plate 32.

[0050] Since the first fixed fixture 1 and the second fixed fixture 2 need to rotate continuously, if wires are used to power the motor, it is necessary to overcome the rotation and interference problems of the wires, which will greatly increase the complexity of the overall structure. In view of this, in order to solve this problem, the motors 33 to which the first fixed fixture 1 and the second fixed fixture are respectively connected are connected to the power supply through two electrode blocks 331 connected to the positive and negative poles thereof, and the floating electrode 34 is fixed in position and can float up and down.

[0051] As attached Figure 3 As shown, the floating electrode 34 includes a mounting groove 341, in which a conductive electrode 342 is arranged to be liftable. The conductive electrodes 342 of the two floating motors 34 are respectively connected to the positive and negative poles of the power supply through wires. A spring 343 is arranged between the conductive electrode 342 and the mounting groove 341. Under normal conditions, the conductive electrode 342 partially protrudes from the mounting groove 341 and its top surface is slightly higher than the bottom surface of the electrode block 331. At the same time, the area of ​​the conductive electrode 342 protruding from the mounting groove 341 is in a frustum shape, so that the electrode block can be easily fitted with the top surface of the conductive electrode 342. Therefore, as long as the electrode block of the motor is rotated to fit with the conductive electrode 342, the motor can be powered, thereby eliminating the need for a complex wiring power supply structure.

[0052] The rotating disk 3 is preferably a circular disk. Figure 2 , Attachment Figure 4As shown, the central position of the bottom is connected to the rotating drive mechanism 4, and the rotating drive mechanism 4 is preferably powered by a motor 41, and the motor 41 is connected to a flat plate 42 through a reduction box, and a group of support shafts 43 are arranged on the flat plate 42, and the support shafts 43 are connected to the bottom of the rotating disk 3. The structural design here can effectively provide space for the arrangement of the floating electrode. Of course, the rotating mechanism 4 can also be a structure composed of a motor or a rotating cylinder as a power source, combined with a belt transmission mechanism or a chain transmission mechanism, etc., which is a known technology and will not be described in detail. Further, a support platform is also arranged at the bottom of the flat plate 42, and the top of the support platform is connected to the bottom of the flat plate 42 through a bearing.

[0053] As attached Figure 1 As shown, the tape supply mechanism 5 is located at the lower right corner of the turntable 3, and includes a tape mounting seat rotatably arranged on the machine table. The tape mounting seat can use an air expansion shaft to fix the tape. The air expansion shaft can quickly adapt to different types of tape rolls, and the application flexibility is better; of course, as shown in the attached Figure 6 As shown, the tape mounting seat can also be a fixed plate 51, and the fixed plate 51 is rotatably connected to the support shaft 53 on the machine table through a bearing 52. Three triangularly distributed columns 54 are arranged on the upper surface of the fixed plate 51 near its circumference, so that the inner ring of the tape roll can be mounted on the three columns 54 to be fixed.

[0054] Furthermore, when the turntable 3 stops cutting the tape, the tape supply mechanism 5 will release an extra section of tape due to the inertial force. At this time, if the tape is not in a taut state, wrinkles will easily appear on the tape during subsequent wrapping, which greatly hinders the flatness and effectiveness of the wrapping.

[0055] In view of this, as attached Figure 5 As shown, a tensioning mechanism 20 is provided between the tape supply mechanism 5 and the turntable 3. Figure 6 As shown, the tensioning mechanism 20 includes a first guide limiting shaft 201, a second guide limiting shaft 202 and a tensioning shaft 203 located therebetween.

[0056] As attached Figure 6As shown, the first guide limit shaft 201 is fixed on the machine platform and close to the tape supply mechanism 5, and includes a cylinder 2011 and a limit plate 2012 fixed on the outer circumference of the cylinder. The bottom surface of the limit plate 2012 limits the height of the tape. The second guide limit shaft 202 is fixed on the base 205 on the machine platform and extends into the turntable 3. It includes a cylinder 2021 and a baffle 2022 fixed on the outer circumference of the cylinder and forming a limit groove. The distance between the two baffles 2022 is slightly larger than the width of the tape, and they make the upper and lower ends of the tape equal to the height of the transformers on the first fixed fixture and the second fixed fixture.

[0057] As attached Figure 6 As shown, the tensioning shaft 203 is vertically arranged on one end of a swing arm 204 close to the second guide limit shaft 202, and the other end of the swing arm 204 is pivotally connected to the base 205. The middle position of the swing arm 204 is connected to one end of a spring 206, and the other end of the spring 206 is connected to a fixed block 207 on the side of the base 204. Under normal circumstances, the tensioning shaft 203, the first guide limit shaft 201, and the second guide limit shaft 202 are distributed in a triangle, and the tape is located on their left side, so that when the tape is pulled, the tensioning shaft 203 is subjected to force to cause the swing arm 204 to rotate clockwise; when there is no pulling force, the swing arm 204 is reset under the reaction force of the spring 206, so that the tensioning shaft 203 moves and resets to tighten the tape.

[0058] As attached Figure 1 , Attachment Figure 5 As shown, the automatic rubber tapping mechanism 6 is located outside the right side of the turntable 3 and is located side by side with the feeding conveyor line 7, so that the overall structure can be more compact. It includes a slider 62 driven by a cylinder 63 or a telescopic mechanism. The slider 62 is slidably arranged on a guide rail 64, and the blade 61 is arranged at the front end of the slider 62. Of course, the cylinder 63 can also be replaced by other devices or structures to drive radially. In another embodiment, it can be a telescopic mechanism composed of a motor 65 and a crank connecting rod. Specifically, as shown in the attached Figure 7 As shown, the motor 65 is connected to one end of an active rod 66, and the other end of the active rod 66 is pivotally connected to one end of a crank 67. The crank 67 is parallel to the extending direction of the active rod 66 under normal conditions, and the other end of the crank 67 is pivotally connected to the slider 62.

[0059] In addition, the side 621 of the slider 62 is close to the first fixing fixture 1 and / or the second fixing fixture 2, so after the tape is cut, the side of the slider 62 can fit the two head areas of the tape to the side of the transformer, thereby avoiding wrinkles at the free end of the tape. Figure 7As shown, a roller 68 is slidably provided on the slider 62 , and the circumferential surface of the roller 68 is close to the opposite side surfaces of the first fixing fixture 1 and the second fixing fixture 2 .

[0060] As attached Figure 1 , Attachment Figure 2 As shown, the feeding conveyor line 7 is used to convey the transformer to be coated. It is located outside the right side of the turntable 3. It can be various known conveyor lines, such as belt conveyor lines, chain plate conveyor lines, vibration conveyor lines, etc. It is a known technology and will not be described here. Figure 5 As shown, two limit plates 71 having a size comparable to that of the transformer core are provided on the top of the loading conveyor line 7. The two limit plates 71 form a guide groove. During transportation, the transformer is located in the guide groove to ensure the position accuracy of the transformer during transportation.

[0061] The feeding conveyor line 7 is located outside the right side of the turntable, and as shown in the attached Figure 5 As shown, the limit plate 71 does not extend to the output end of the feeding conveyor line, but reserves a certain gap 72, which can accommodate a transformer; the setting of the gap, on the one hand, can set a sensor here to determine whether there is a transformer, and on the other hand, can provide space for the subsequent grasping of the transformer by the clamp; the front end of the feeding conveyor line is provided with a baffle 73 to prevent the transformer from falling from the feeding conveyor line.

[0062] As attached Figure 1 As shown, the unloading conveyor line 10 is located outside the left side of the turntable, and is parallel to the extension direction of the loading conveyor line 7, but with a certain offset; it can also be various known conveyor lines, preferably a vibrating conveyor line, which is also formed with a guide groove composed of a baffle.

[0063] As attached Figure 2 As shown, the loading and unloading mechanism 8 is used for synchronous loading and unloading of transformers, and at least includes a first pneumatic clamp 81, a second pneumatic clamp 82 and a transfer mechanism 83 that drives them to reciprocate and lift along a conveying direction parallel to the loading conveyor line 7.

[0064] The structures of the first pneumatic clamp 81 and the second pneumatic clamp 82 are the same, which is a known technology and will not be elaborated on. In addition, the moving direction of the clamp of the first pneumatic clamp 81 is perpendicular to the moving direction of the clamp of the second pneumatic clamp. This design facilitates the clamping of the head end of the tape by the second pneumatic clamp 82 during subsequent unloading, thereby fixing it.

[0065] As attached Figure 2As shown, the first pneumatic clamp 81 and the second pneumatic clamp 82 are arranged on a mounting plate 831, and the mounting plate 831 can be slidably arranged on a slide rail (not shown in the figure) which is fixed in a position and extends along the conveying direction of the feeding conveyor line 7. The mounting plate 831 is connected to a pen-shaped cylinder 832, and the pen-shaped cylinder and the slide rail are arranged on a longitudinal plate 833. The longitudinal plate 833 can be slidably arranged on a guide rail 835 on the vertical plate 834, and the longitudinal plate 833 is connected to a longitudinal cylinder 836. At the same time, two springs (not shown in the figure) are arranged between the longitudinal cylinder 836 and the longitudinal plate 833.

[0066] During loading and unloading, the transfer mechanism 83 drives the first pneumatic clamp 81 to move to the top of the output end of the loading conveyor line 7. At this time, the second pneumatic clamp 81 is located above the inner fixed fixture (the first fixed fixture 1). At this time, the transfer mechanism 83 drives the two pneumatic clamps 81 to move downward, and the first pneumatic clamp 81 grabs the transformer at the output end of the loading conveyor line 7, and the second pneumatic clamp grabs the transformer that has been coated on the fixed fixture on the left. Then the transfer mechanism 83 drives the first pneumatic clamp 81 and the second pneumatic clamp 82 to reset. At this time, the first pneumatic clamp is located directly above the fixed fixture on the left for loading, and the second pneumatic clamp 81 is located on the outside of the turntable for unloading, and so on.

[0067] Furthermore, in order to facilitate the subsequent testing of the transformer, the pins of the transformer need to face downwards. When the tape is wrapped, the pins of the transformer are on the side and need to be turned over before transportation. Figure 8 , Attachment Fig. 9 As shown, the transformer automatic tape coating machine also includes

[0068] The turning mechanism 9 is located between the unloading conveyor line 10 and the turntable 3, and has a structure for rotating the transformer thereon by 90° around an axis parallel to the horizontal plane so that the pins of the transformer face downwards;

[0069] The electrical parameter detection mechanism 40 has a structure capable of clamping the primary pin and the secondary pin of the transformer and applying current to test the electrical parameters of the transformer;

[0070] The loading and unloading mechanism also includes a

[0071] The third pneumatic clamp 44 has a structure for moving the transformer between the flipping mechanism and the unloading conveyor line;

[0072] The fourth pneumatic clamp 45 has a structure for moving the transformer flipped on the flipping mechanism to the electrical parameter detection mechanism.

[0073] Specifically, as attached Fig. 9As shown, the flipping mechanism 9 includes a rotating cylinder 91, the cylinder axis of the rotating cylinder 91 faces the turntable 3, and is connected to a mounting plate 92, in front of which a magnet plate 93 perpendicular to the mounting plate 92 is arranged. Under normal conditions, the magnet plate 93 is in a vertical state; after flipping, the magnet plate is in a horizontal state, and the second pneumatic clamp 82 can place the transformer it grabs on the flipping mechanism 9 when the magnet plate 93 is in a vertical state.

[0074] As mentioned in the attached Fig.10 , Attachment Fig.11 As shown, the electrical parameter detection mechanism 40 includes a box body 401, and the box body 401 can be a top plate 4011 and two side plates 4012 that enclose a rectangular space, and of course, it can also be a pentahedron or hexahedron structure, which are arranged on a substrate 409, and the combination 401 can be made of various non-metallic materials, preferably PTFE plastic plate.

[0075] As attached Fig.10 , Attachment Fig.11 As shown, the top surface of the box body 401 is provided with two rows of waist-shaped holes 402, 403 for the primary pins and secondary pins of the transformer to pass through, the gap L between the two rows of waist-shaped holes 402, 403 is between 0.5-10cm, and the length of the waist-shaped holes 402, 403 is between 5-10cm, so as to effectively adapt to the detection requirements of transformers with various pin spacings; each of the waist-shaped holes 402, 403 is provided with a conductive spring 404 for connecting with the primary pin and the secondary pin, at this time, the conductive spring 404 can be the contact of the knife switch, the end of the conductive spring 404 is connected to the circuit board 405, the circuit board 405 is connected to the control device, the control device is connected to the test trigger (not shown in the figure), and the test trigger is a trigger button or a trigger pedal; of course, in other embodiments, a proximity switch or the like can be set to detect whether the transformer is placed in place, and a signal is sent to the control device for detection triggering.

[0076] In another preferred embodiment, as shown in the attached Fig.10 , Attachment Fig.11 As shown, the box body 401 is provided with a slide plate 407 which is parallel to the top surface thereof and extends to the outside thereof. Specifically, a card slot 40121 is formed at the inner wall of the two side plates 4012 of the box body 401, and the slide plate 407 can be slidably inserted into the card slot 40121. Fig.11 As shown, both ends thereof extend to the outside of the two ends of the slot 40121, the slide plate 407 can slide back and forth relative to the box body 401 along the first direction X and is provided with waist-shaped holes that match the positions of each waist-shaped hole 402, 403 on the top surface of the box body; as shown in the attached Fig.10As shown, the conductive spring piece 404 is Y-shaped and passes through the waist-shaped hole on the slide plate 407, and the slide plate 407 is located at the two branches 4041 of the conductive spring piece 40404; the control device is also connected to a pushing device 408 that drives the slide plate 404 to slide. Preferably, the slide plate 407 is a PTFE plastic plate, which has the characteristics of high and low temperature resistance, corrosion resistance, high lubricity, and non-adhesion, so that it can better adapt to various use environments, and at the same time enable the slide plate 407 to slide better in the slot 40121, reduce wear, and avoid contamination and leakage problems.

[0077] As attached Fig.11 As shown, the pushing device 408 includes a cylinder 4081 located on the protruding side of the slide plate 404, and a push plate 4082 is provided at the front end of the piston rod of the cylinder 4081, and the push plate 4082 is connected to the cylinder 4081 through a nitrogen spring (not shown in the figure). Of course, the push plate 4082 can also be connected to the cylinder through an elastic telescopic rod or a spring mounted on the outer periphery of the shaft and other structures with elastic deformation ability, thereby playing a buffering role.

[0078] Furthermore, the control device includes a display screen for outputting test data, and is connected to an alarm (not shown in the figure). When the test parameters do not meet the requirements, the control device controls the alarm to sound an alarm, prompting the operator to handle the problem.

[0079] As attached Figure 8 As shown, the third pneumatic clamp 84 is used to remove the transformer on the magnet plate 93 and move it to the electrical parameter detection mechanism 40 when the magnet plate 93 is in a horizontal state, and the fourth pneumatic clamp 85 is used to move the qualified transformer to the unloading conveyor line. Their specific structures are consistent with the second pneumatic clamp 82 and are all arranged on the mounting plate 831. At the same time, the spacing between the third pneumatic clamp 84, the fourth pneumatic clamp 85, the second pneumatic clamp 82 and the first pneumatic clamp 81 is the same, so that multiple loading and unloading operations between multiple workstations can be realized in one translation process, which greatly improves the work rhythm and improves efficiency.

[0080] Furthermore, when the detection is unqualified, the unqualified transformer needs to be moved to the unqualified product area. Specifically, a unloading box 50 is arranged next to the input end of the unloading conveyor line 10, and the unloading box 50 is located above the conveying surface of the unloading conveyor line 10 and is connected to a telescopic mechanism 60 that drives it to extend and retract in the direction of the unloading conveyor line 10. The unloading box 50 can be extended to the top of the unloading conveyor line 10, so as to accommodate the unqualified transformer lowered by the fourth pneumatic gripper, which includes a bottom plate 501 and a side plate 502, and the bottom plate 501 includes a flat plate and a slope, and a collection box is arranged at the lower end of the slope.

[0081] When the whole equipment is working, various sensors can be used in combination with a control system composed of a PLC and an industrial computer to control the start and stop and status of each cylinder and motor. This is a known technology and will not be described in detail.

[0082] During operation, in the initial state, first, a transformer is placed on the second fixed fixture 2 close to the tape supply mechanism 5 and fixed, and the tape on the tape supply mechanism 5 is wound around the transformer on the second fixed fixture 2. Then, the loading and unloading mechanism moves a transformer of the loading conveyor line to the first fixed fixture 1, and then the rotary drive mechanism 4 drives the turntable 3 to rotate 180°. When the transformer on the second fixed fixture 2 rotates, the tape is pulled to cover its upper side surface; and in the process of the first fixed fixture 1 rotating to the initial position of the second fixed fixture 2, the transformer thereon will contact with the tape, so that part of its periphery is covered with the tape. At this time, the first fixed fixture 1 rotates at least one circle, and the automatic rubber tapping mechanism 6 is started to cut the tape between the two transformers. At this time, the transformer on the second fixed fixture 2 is coated and can be unloaded. At the same time, when the transformer on the first fixed fixture 1 is subsequently rotated back to its initial position, other areas of the transformer periphery can be fully coated with the tape. In this way, automatic rubber encapsulation can be continuously performed without manual labor.

[0083] S1, then, the loading and unloading mechanism drives the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper thereon to respectively grab the output end of the loading conveyor line, the first fixed fixture, the turning mechanism, and the transformer on the electrical parameter detection mechanism, and move the transformer grabbed by the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper to the first fixed fixture, the turning mechanism, the electrical parameter detection mechanism, and the unloading conveyor line;

[0084] S2, the motor 41 drives the turntable 3 to rotate 180° counterclockwise and then stops, and then the motor connected to the first fixed fixture is powered on and starts to drive the first fixed fixture to rotate counterclockwise for at least one circle, preferably 2 circles. Subsequently, the motor 65 of the automatic rubber tapping mechanism drives the crank connecting rod mechanism to push the slider 62 to cut the tape between the first fixed fixture and the second fixed fixture.

[0085] At the same time, the rotary cylinder of the flipping mechanism drives the magnet plate 93 thereon to rotate 90° counterclockwise, thereby flipping the transformer 90° so that its pins face downward.

[0086] At the same time, the testing device 40 tests the transformer thereon; specifically, the control device pushes the slide plate 407 through the pushing device 408, and after the slide plate 407 is translated, it combines with the waist-shaped holes 402 and 403 on the box body 401 to bring the two branches 4041 of the conductive spring sheet close together and clamp the pins to achieve conduction, so that the control device can detect various parameter signals. After the detection, the control device determines whether the discharge box 50 needs to be extended according to the detection results. If it is unqualified, the telescopic mechanism 60 drives the discharge box 50 to extend to the top of the discharge conveyor line 10 to receive the material and then reset.

[0087] At the same time, the unloading conveyor line is unloading;

[0088] S3, repeat S1-S2.

[0089] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. Transformer core rubber coating automatic winding machine, characterized by: The invention comprises a first fixed jig (1) and a second fixed jig (2), both of which have a structure for placing and limiting a transformer, the first fixed jig (1) and the second fixed jig (2) are both self-rotatable and symmetrically mounted on two sides of a symmetry axis of a turntable (3), the turntable (3) is connected to a rotary drive mechanism for driving its self-rotation, and a tape supply mechanism (5), an automatic rubber tapping mechanism (6), a loading conveyor line (7) and a unloading conveyor line (10) are arranged on the outer side of the turntable, and a blade of the automatic rubber tapping mechanism (6) can be moved to the gap between the first fixed jig (1) and the second fixed jig (2); the transformer core rubber encapsulation automatic winding machine also comprises a loading and unloading mechanism (8), which has a structure for moving the transformer at the output end of the loading conveyor line (7) to the first fixed jig (1) and moving the transformer on the first fixed jig (1) to the unloading conveyor line (10); The transformer automatic tape coating machine also includes: The turning mechanism is located between the turntable and the unloading conveyor line, and has a structure for rotating the transformer on the turntable by 90° around an axis parallel to the horizontal plane so that the pins of the transformer face downwards; An electrical parameter detection mechanism has a structure capable of clamping the primary pin and the secondary pin of the transformer and applying current to test the electrical parameters of the transformer; The loading and unloading mechanism also includes: A third pneumatic gripper has a structure for moving the transformer between the flipping mechanism and the unloading conveyor line; The fourth pneumatic clamp has a structure for moving the transformer flipped on the flipping mechanism to the electrical parameter detection mechanism; The electrical parameter detection mechanism includes a box body, the top surface of the box body is provided with two rows of waist-shaped holes for the primary pins and secondary pins of the transformer to pass through, each of the waist-shaped holes is provided with a conductive spring, the end of the conductive spring is connected to the circuit board, the circuit board is connected to the control device, and the control device is connected to the test trigger, the box body is provided with a slide plate parallel to the top surface and extending to the outside thereof, the slide plate can slide back and forth relative to the box body in a first direction and is provided with waist-shaped holes matching the position of each waist-shaped hole on the top surface of the box body, the conductive spring is Y-shaped and passes through the waist-shaped hole on the slide plate, and the slide plate is located at two branches of the conductive spring; the control device is also connected to a pushing device that drives the slide plate to slide.

2. The transformer core rubber coating automatic winding machine according to claim 1 is characterized in that: The first fixing fixture (1) and the second fixing fixture (2) have the same structure, and both comprise a contour-profiling limiting groove, wherein the groove bottom plate of the contour-profiling limiting groove is a magnet.

3. The transformer core rubber coating automatic winding machine according to claim 1 is characterized in that: The turntable (3) is formed with a through hole (31), two support plates (32) are mounted on the through hole (31), the first fixed fixture and the second fixed fixture are respectively arranged on a support plate (32), and a motor (33) for driving the first fixed fixture and the second fixed fixture to rotate is arranged at the bottom of the support plate (32).

4. The transformer core rubber coating automatic winding machine according to claim 3 is characterized by: The motor (33) is connected to a floating electrode (34) with a fixed position via two electrode blocks on which positive and negative electrodes are connected, so as to be connected to a power source.

5. The automatic transformer tape coating machine according to claim 1 is characterized in that: A tensioning mechanism (20) is provided between the adhesive tape supply mechanism (5) and the turntable (3), the tensioning mechanism comprising a first guide limit shaft, a second guide limit shaft and a tensioning shaft located therebetween, the tensioning shaft being vertically arranged at one end of a swing arm close to the second guide limit shaft, the other end of the swing arm being pivotally connected to the base, one end of a spring being connected to the middle position of the swing arm, the other end of the spring being connected to a fixed block on the side of the base.

6. The automatic transformer tape coating machine according to claim 1, characterized in that: The automatic rubber tapping mechanism comprises a slider, which is slidably arranged on a guide rail and connected to a telescopic mechanism for driving the slider to move, wherein the telescopic mechanism comprises a motor and a crank-connecting rod mechanism, and the blade is arranged at the front end of the slider.

7. The automatic transformer tape coating machine according to claim 6, characterized in that: A roller is slidably disposed on the sliding block, and a circumferential surface of the roller is close to the side surfaces of the first fixing fixture and the second fixing fixture that are opposite to each other.

8. The automatic transformer tape coating machine according to claim 1 is characterized in that: The flip mechanism comprises a rotating cylinder, a mounting plate is arranged on the rotating shaft of the rotating cylinder, and a magnet plate is arranged on the mounting plate.

9. The tape winding method of the transformer core automatic wrapping machine according to any one of claims 1 to 8, characterized in that: The steps include: S1, the loading and unloading mechanism drives the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper thereon to respectively grab the output end of the loading conveyor line, the first fixed fixture, the turning mechanism, and the transformer on the electrical parameter detection mechanism, and move the transformer grabbed by the first pneumatic gripper, the second pneumatic gripper, the third pneumatic gripper, and the fourth pneumatic gripper to the first fixed fixture, the turning mechanism, the electrical parameter detection mechanism, and the unloading conveyor line; S2, after the turntable rotates 180°, the first fixed fixture rotates at least one circle; at the same time, the automatic rubber tapping mechanism cuts the tape between the first fixed fixture and the second fixed fixture; at the same time, the flipping mechanism drives the transformer thereon to flip 90° so that its pins face downward; at the same time, the testing device tests the transformer thereon; at the same time, the unloading conveyor line unloads the material; S3, repeat S1-S2.

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