Full-automatic winding machine with roebel coil tension buffer

Abstract

This utility model discloses a Rogowski coil tension buffer fully automatic winding machine, including a wire supply unit, a wire feeding unit, a winding unit, a wire traction unit, a transmission unit, and a frame unit for fixing these units. The wire supply unit includes guide wheels that guide the coil skeleton to be wound to the winding shaft. The wire feeding unit feeds the enameled wire through the differential speed of the wire feeding driven pulley and the winding driven pulley. The winding unit guides the enameled wire to perform a winding motion and winds the coil at the wire outlet. The wire traction unit includes upper and lower transmission pulley assemblies, through which the wound Rogowski coil is pulled to the unloading area for unloading. The transmission unit provides power transmission to the wire feeding unit and the winding unit. The advantage of this utility model is that the elastic buffer assembly suppresses tension fluctuations during the winding process.

Description

Technical Field

[0001] This utility model relates to the field of automatic coil winding manufacturing, and in particular to a Rogowski coil tension buffer fully automatic winding machine. Background Technology

[0002] Rogowski coil current sensors are crucial devices in power grid systems for current quality detection and relay protection. The measurement accuracy of Rogowski coils is related to the uniformity and density of the coil winding. Under uniform winding conditions, higher winding density results in stronger anti-interference capabilities and higher measurement accuracy. Due to factors such as mechanical friction and machine vibration, tension fluctuations in the enameled wire occur during the Rogowski coil winding process. This leads to uneven winding and affects measurement accuracy. Tension buffering during the winding process can effectively suppress tension fluctuations and improve winding quality. Existing Rogowski coil winding devices are relatively outdated, and the technology for automatic Rogowski coil winding machines with effective tension buffering measures is not yet mature. Therefore, developing a fully automatic Rogowski coil tension buffering winding machine is an urgent problem to be solved.

[0003] The key technologies of the Rogowski coil tension buffer fully automatic winding machine lie in the structural design of the fully automatic winding equipment and the principle of tension buffering. Regarding the design of the Rogowski coil winding device, patents CN203895268U and CN208422670U propose two different flexible coil winding device structural designs. Regarding the tension buffering and control of the winding machine, patents CN102030223B, CN103050276B, and CN119724913A propose three different tension buffering mechanism designs for the winding machine.

[0004] Document CN203895268U discloses a Rogowski coil winder, in which the winding device achieves winding by rotating the coil frame.

[0005] Document CN208422670U discloses a novel flexible coil winding device, in which the winding transposition adopts a winding method of rotating the coil skeleton.

[0006] Document CN102030223B discloses a superconducting solenoid coil winding machine, which uses additional counterweights to achieve mechanical constant tension control, thereby preventing tension fluctuations.

[0007] Document CN103050276B discloses a constant tension non-destructive superconducting winding device and method. It employs a linear braking element as the brake, facilitating arbitrary setting of the tension of the constant tension winding superconducting wire. A PLC controls the frequency of the frequency converter, thereby controlling the real-time rotational speed of the drive disc and maintaining constant tension. A torque sensor detects the tension, and the brake is used to adjust the tension and suppress tension fluctuations.

[0008] Document CN119724913A discloses a high-temperature superconducting coil winding machine with adjustable tension and winding speed. By employing a control system, a tension sensor, and a high-precision servo motor working in tandem, it achieves precise tension control, avoiding problems such as strip breakage and deformation due to uneven tension, internal stress concentration in the coil, or loose coils with excessive inter-turn resistance. This results in coils with good tightness and consistency, improving coil quality and performance. This winding machine is suitable for winding rigid-frame coils but not for flexible coils such as Rogowski coils. Furthermore, tension adjustment is achieved by controlling the winding motor speed, suppressing tension fluctuations.

[0009] Document CN119964979B discloses a hollow coil processing device and its processing technology. It designs an adjustable-diameter winding cylinder composed of an adjusting cylinder block and an outer cylinder block, which serves as the winding center support for the hollow coil. This enables a production process where the coil is wound at a large cylinder diameter and unloaded at a small cylinder diameter, ensuring coil quality while providing a convenient and reliable unloading method. This patent addresses hollow coil winding and unloading, but is not applicable to Rogowski coil winding and tension buffering.

[0010] Document CN118844255B discloses a coil winding machine, in which the winding device achieves winding by rotating the coil frame. The wire density is adjusted by a mechanical method of adjusting the transmission ratio.

[0011] In summary, existing rigid coil bobbin constant tension winding machines are unsuitable for producing flexible bobbin coils; existing Rogowski coil winding equipment lacks effective tension buffering design; and existing Rogowski coil winding equipment focuses on winding transposition design, lacking integrated automated continuous production equipment that includes a wire supply mechanism, a uniform wire laying mechanism, a tension buffering mechanism, and a winding mechanism. These are the areas that this application needs to focus on improving. Summary of the Invention

[0012] The technical problem to be solved by this utility model is to provide a Rogowski coil tension buffer fully automatic winding machine, which integrates wire supply, automatic wire arrangement, tension buffer and coil winding functions to suppress tension fluctuations during the winding process through elastic buffer components.

[0013] To solve the above technical problems, this utility model provides a Rogowski coil tension buffer fully automatic winding machine, including a wire supply unit, a wire feeding unit, a winding unit, a wire traction unit, a transmission unit, and a frame unit for fixing these units; wherein:

[0014] The wire supply unit includes at least one guide wheel, which is arranged in sequence on the wire feeding device mounting frame of the frame unit. The at least one guide wheel guides the coil bobbin to be wound to the winding shaft for coil winding in sequence.

[0015] The wire feeding unit includes a wire feeding guide assembly, a turntable, a wire feeding driven pulley, and a winding driven pulley. The wire feeding operation is performed by the differential speed of the wire feeding driven pulley and the winding driven pulley.

[0016] The winding unit guides the enameled wire to perform a winding motion and winds the coil at the wire outlet.

[0017] The wire traction unit includes an upper and lower transmission pulley assembly. The wound Rogowski coil is pulled to the unloading area by the upper and lower transmission pulley assembly to complete the unloading.

[0018] The transmission unit provides power transmission for the wire feeding unit and the wire winding unit;

[0019] The wire feeding unit and the wire winding unit are coaxial, meaning that the rotational axis of the wire feeding unit, which performs the rotational motion of feeding the enameled wire, and the rotational axis of the wire winding unit, which performs the rotational motion of winding the enameled wire, coincide with each other.

[0020] The wire feeding guide assembly includes an elastic buffer assembly, which suppresses tension fluctuations during the winding process.

[0021] The wire feeding unit includes a left winding shaft fixing tube, a left winding shaft fixing ring, a wire feeding driven pulley, a left top cone, an enameled wire raw material cylinder, a right top cone, a right winding shaft fixing tube, a right winding shaft fixing ring, a wire feeding guide assembly, a turntable, and a winding driven pulley. The wire feeding operation is achieved through the differential speed of the wire feeding driven pulley and the winding driven pulley. Specifically: the left winding shaft fixing tube is mounted on the winding shaft fixing seat of the frame unit; the left winding shaft fixing ring is mounted on the left winding shaft fixing tube and is used to adjust and fix the installation position of the wire feeding driven pulley; the wire feeding driven pulley is mounted on the left winding shaft fixing tube. It has an internal bearing connected to it; the left top cone is installed on the wire feeding driven pulley; the enameled wire raw material cylinder is installed between the left and right top cones, and rotates together with the wire feeding driven pulley through the top cone connection; the right top cone is installed on the right winding shaft fixing tube; the right winding shaft fixing tube passes through the central shaft of the winding unit and is either directly fixed to other parts or connected through bearings; the right winding shaft fixing ring is installed on the right winding shaft fixing tube and is used to adjust and fix the installation position of the right top cone; the turntable is installed on the winding driven pulley, and the winding driven pulley is installed on the right winding shaft fixing tube through bearings.

[0022] The wire feeding driven pulley drives the enameled wire raw material drum to rotate, and the winding driven pulley drives the turntable and its wire feeding guide assembly to rotate. Both the wire feeding driven pulley and the winding driven pulley are powered by DC servo motors, but they have different transmission ratios. The winding driven pulley rotates at a higher speed than the wire feeding driven pulley, which makes the rotation speed of the wire feeding guide assembly greater than the rotation speed of the enameled wire raw material drum, thereby completing the wire feeding and supply work.

[0023] The wire feeding guide assembly is installed on the turntable and is used to guide the direction of the enameled wire on the enameled wire raw material spool.

[0024] The wire feeding guide assembly includes an elastic buffer assembly, an end conductor ceramic ring, a movable wire feeding bracket, a fixed wire feeding bracket, a transition conductor ceramic ring, a corner bracket, and a turntable conductor ceramic ring. The elastic buffer assembly includes a spring, a movable spring bracket, and a fixed spring bracket. The end conductor ceramic ring is mounted on the movable wire feeding bracket, which is connected to the fixed wire feeding bracket via a hinge. The fixed wire feeding bracket is mounted on the corner bracket. The transition conductor ceramic ring is mounted on the fixed wire feeding bracket. The corner bracket and the turntable conductor ceramic ring are mounted on the turntable. The two ends of the spring are mounted on the movable wire feeding bracket and the fixed wire feeding bracket, respectively, via the movable spring bracket and the fixed spring bracket. The enameled wire fed from the enameled wire bobbin passes sequentially through the end conductor ceramic ring, the transition conductor ceramic ring, the turntable conductor ceramic ring, and the turntable wire-passing ceramic ring on the turntable before reaching the winding unit. The spring applies a certain tension to the enameled wire to mitigate vibration and impact during operation, thereby suppressing tension fluctuations.

[0025] The winding unit includes a wire cylinder, a sliding bearing seat, a winding guide ceramic ring, and a wire outlet, guiding the enameled wire in a winding motion and completing the coil winding at the wire outlet. Wherein:

[0026] The lead tube is mounted on the driven pulley for winding and mates with the inner ring of the sliding bearing housing. The lead tube has a through hole, one end of which connects to the turntable guide ring, and the other end connects to the winding guide ring, guiding the enameled wire to the lead nozzle. The sliding bearing housing is mounted on the shelf of the frame unit. The winding guide ring and the lead nozzle are mounted on the lead tube. The coil bobbin exits evenly at the lead nozzle after passing through the central shaft of the winding unit. Simultaneously, the enameled wire in the winding guide ring rotates with the lead tube at the lead nozzle, winding itself onto the coil bobbin, thus completing the Rogowski coil winding process.

[0027] The wire feeding unit and winding unit have a central through-hole structure, which serves as a channel for the coil bobbin to be wound, guiding it to the wire outlet of the winding unit for coil winding. The wire outlet is conical in shape, guiding the enameled wire to the winding position.

[0028] The wire traction unit includes a wire exit device mounting plate, an upper drive pulley assembly, a lower drive pulley assembly, a wire exit guide bracket, an upper pulley servo motor, and a lower pulley servo motor. The wire exit device mounting plate is mounted on the wire exit device mounting frame of the frame unit. Both the upper and lower drive pulley assemblies are mounted on the wire exit device mounting plate. The wire exit guide bracket is mounted on the wire exit device mounting plate on one side of the upper and lower drive pulley assemblies to restrict the feeding direction of the Rogowski coil. Both the upper and lower pulley servo motors are mounted on the wire exit device mounting plate, and the drive pulleys of the upper and lower drive pulley assemblies are connected to the motor shafts of the upper and lower pulley servo motors via keys. This provides power for the wire supply unit to complete the feeding and unloading of the Rogowski coils and also allows for uniform wire arrangement by moving the coil frame at a constant speed.

[0029] The transmission unit includes a power shaft, a left power shaft retaining ring, a pay-off drive pulley, a right power shaft retaining ring, a coupling, a winding drive pulley, and a DC servo motor, providing power transmission for the pay-off unit and the winding unit. Specifically: one end of the power shaft is mounted on the power shaft mounting base of the frame unit, and the other end is fixed to the coupling; the left power shaft retaining ring is mounted on the power shaft; the pay-off drive pulley is mounted on the power shaft via a key connection; the right power shaft retaining ring is mounted on the power shaft and, together with the left power shaft retaining ring, adjusts and fixes the installation position of the pay-off drive pulley 94; the coupling is mounted on the winding drive pulley; the winding drive pulley is mounted on the DC servo motor shaft via a key connection; the DC servo motor is mounted on the motor mounting bracket of the frame unit; the motor's rotational power is transmitted through the winding drive pulley, coupling, and power shaft, thereby realizing the rotational drive of the winding pulley assembly and the pay-off pulley assembly.

[0030] The beneficial effects of this utility model are as follows:

[0031] 1) This utility model uses an elastic buffer component to suppress tension fluctuations during the winding process, avoids the loose stacking of enameled wire, ensures winding quality, and improves the performance of coil products;

[0032] 2) This utility model integrates wire supply, automatic wire arrangement, tension buffer and coil winding functions into an automated continuous production winding machine, forming an automated integrated Rogowski coil winding equipment that can continuously produce. Attached Figure Description

[0033] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0034] Figure 1This is a structural schematic diagram of a specific embodiment of the present utility model;

[0035] Figure 2 This is a schematic diagram of the frame unit of a specific embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the wire supply unit according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the wire feeding unit according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the wire feeding guide assembly according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the winding unit according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the wire traction unit according to an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the transmission unit in an embodiment of the present invention;

[0042] Explanation of markings in the diagram:

[0043] 1—Rack unit;

[0044] 16—Large support bracket; 19—Incoming line device mounting bracket;

[0045] 11—Power shaft mounting bracket; 22—Winding shaft mounting bracket;

[0046] 91—Motor mounting bracket; 85—Shelf;

[0047] 86—Outgoing line device mounting bracket;

[0048] 2—Wire supply unit;

[0049] 25—Inlet guide roller; 28—Lead guide roller;

[0050] 30—Outgoing cable guide roller;

[0051] 3—Laying-out unit;

[0052] 33—Left winding spool fixing tube; 34—Left winding spool fixing ring;

[0053] 35—Driven pulley for wire feeding; 36—Left top cone;

[0054] 37—Enamelled wire raw material canister; 40—Right-sided top cone;

[0055] 58—Right winding spool fixing tube; 41—Right winding spool fixing ring;

[0056] 55—Turntable; 56—Driven pulley for winding;

[0057] 4—Winding unit;

[0058] 60—Wire guide cylinder 60; 62—Sliding bearing seat;

[0059] 66—Ceramic ring for winding and guiding wire; 67—Outlet tip;

[0060] 5—Wire traction unit;

[0061] 70—Outgoing cable mounting plate; 8—Upper drive pulley assembly;

[0062] 9—Lower drive pulley assembly; 82—Cable guide bracket;

[0063] 78—Upper pulley servo motor; 73—Lower pulley servo motor;

[0064] 6—Transmission unit;

[0065] 96—Drive shaft; 93—Left drive shaft retaining ring;

[0066] 94—Wire feeding drive pulley; 95—Right drive shaft retaining ring;

[0067] 97—Coupling; 98—Winding drive pulley;

[0068] 101—DC servo motor;

[0069] 7—Line laying guide assembly;

[0070] 44—End conductor ceramic ring; 43—Modible wire laying bracket;

[0071] 48—Fixed cable laying bracket; 49—Transition conductor ceramic ring;

[0072] 50—Angle bracket; 51—Ceramic ring for turntable wire;

[0073] 46—Spring; 45—Modible spring support;

[0074] 47—Fixed spring bracket. Detailed Implementation

[0075] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0076] like Figure 1As shown, this utility model provides a Rogowski coil tension buffer fully automatic winding machine, including a wire supply unit 2, a wire feeding unit 3, a winding unit 4, a wire traction unit 5, a transmission unit 6, and a frame unit 1 for fixing these units.

[0077] The frame unit 1, including a large support 16, a wire inlet mounting bracket 19, a power shaft fixing seat 11, a winding shaft fixing seat 22, a motor mounting bracket 91, a shelf 85, and a wire outlet mounting bracket 86, serves as the support structure for the Rogowski coil tension buffer fully automatic winding machine and the mounting base for other units.

[0078] The wire supply unit 2 includes an inlet guide wheel 25, a lead guide wheel 28, and an outlet guide wheel 30. The inlet guide wheel 25 is mounted on the inlet device mounting frame 19 and is located on the outer side. The lead guide wheel 28 is mounted on the inlet device mounting frame 19 and is located between the inlet guide wheel 25 and the outlet guide wheel 30. The outlet guide wheel 30 is mounted on the inlet device mounting frame 19 and is located on the inner side. The coil bobbin to be wound reaches the left winding shaft fixing tube 33 of the wire release unit 3 after being guided by the inlet guide wheel 25, the lead guide wheel 28, and the outlet guide wheel 30.

[0079] The wire feeding unit 3 includes a left winding shaft fixing tube 33, a left winding shaft fixing ring 34, a wire feeding driven pulley 35, a left top cone 36, an enameled wire raw material cylinder 37, a right top cone 40, a right winding shaft fixing tube 58, a right winding shaft fixing ring 41, a wire feeding guide assembly 7, a turntable 55, and a winding driven pulley 56. The wire feeding operation is achieved through the differential speed between the wire feeding driven pulley 35 and the winding driven pulley 56.

[0080] The left winding shaft fixing tube 33 is mounted on the winding shaft fixing seat 22; the left winding shaft fixing ring 34 is mounted on the left winding shaft fixing tube 33 and is used to adjust and fix the installation position of the wire feeding driven pulley 35; the wire feeding driven pulley 35 is mounted on the left winding shaft fixing tube 33 and is connected to it with a bearing inside; the left top cone 36 is mounted on the wire feeding driven pulley 35; the enameled wire raw material cylinder 37 is installed between the left and right top cones and rotates together with the wire feeding driven pulley through the top cone connection; the right top cone 40 is mounted on the right winding shaft fixing tube 58; the right winding shaft fixing tube 58 passes through the central shaft of the winding and feeding mechanism and is either directly fixed to other parts or connected through bearings; the right winding shaft fixing ring 41 is mounted on the right winding shaft fixing tube 58. The right top cone 40 is used to adjust and fix its installation position; the wire feeding guide assembly 7 is mounted on the turntable 55 to guide the enameled wire on the enameled wire raw material cylinder 37; the turntable 55 is mounted on the winding driven pulley 56; the winding driven pulley 56 is mounted on the right winding shaft fixing tube 58 through bearings; the wire feeding driven pulley 35 drives the enameled wire raw material cylinder to rotate, and the winding driven pulley 56 drives the turntable 55 and its wire feeding guide assembly 7 to rotate. Both sets of pulley transmission mechanisms are powered by DC servo motor 101, so they rotate in the same direction but have different transmission ratios. The winding driven pulley 56 rotates faster than the wire feeding driven pulley 35, so that the wire feeding guide unit 7 rotates faster than the enameled wire raw material cylinder 37, thereby completing the wire feeding and supply work.

[0081] The wire feeding guide assembly 7 includes an end wire ceramic ring 44, a movable wire feeding bracket 43, a fixed wire feeding bracket 48, a transition wire ceramic ring 49, a corner bracket 50, a turntable wire ceramic ring 51, a spring 46, a movable spring bracket 45, and a fixed spring bracket 47. The end conductor ceramic ring 44 is mounted on the movable wire feeding bracket 43; the movable wire feeding bracket 43 is connected to the fixed wire feeding bracket 48 via a hinge; the fixed wire feeding bracket 48 is mounted on the angle bracket 50; the transition conductor ceramic ring 49 is mounted on the fixed wire feeding bracket 48; the angle bracket 50 is mounted on the turntable 55; the turntable conductor ceramic ring 51 is mounted on the turntable 55; the spring 46 is mounted on the movable wire feeding bracket 43 and the fixed wire feeding bracket 48 via the movable spring bracket 45 and the fixed spring bracket 47, respectively; the enameled wire coming out of the enameled wire raw material cylinder 37 passes sequentially through the end conductor ceramic ring 44, the transition conductor ceramic ring 49, the turntable conductor ceramic ring 51, and the turntable wire passing ceramic ring 52 on the turntable 55 to reach the winding unit 4. The spring 46 applies a certain tension to the enameled wire to alleviate vibration and impact during operation, thereby suppressing tension fluctuations.

[0082] The winding unit 4 includes a wire cylinder 60, a sliding bearing seat 62, a winding guide ceramic ring 66, and a wire outlet 67. It guides the enameled wire in a winding motion and completes the coil winding at the wire outlet 67. The wire cylinder 60 is mounted on the winding driven pulley 56 and engages with the inner ring of the sliding bearing seat. The wire cylinder 60 has a through hole; one end connects to the turntable guide ceramic ring 52, and the other end connects to the winding guide ceramic ring 66, guiding the enameled wire to the wire outlet 67. The sliding bearing seat 62 is mounted on the shelf 85. The winding guide ceramic ring 66 is mounted on the wire cylinder 60. The wire outlet 67 is mounted on the wire cylinder 60. After passing through the central shaft of the winding and unwinding mechanism, the coil skeleton exits evenly at the wire outlet 67. Simultaneously, the enameled wire in the winding guide ceramic ring 66 rotates and winds along with the wire cylinder 60 at the wire outlet 67, thus winding the enameled wire onto the coil skeleton and completing the Rogowski coil winding process. The enameled wire is wound at the outlet of the outlet nozzle 67, which is conical in shape and guides the enameled wire to the winding position.

[0083] The wire feeding unit 3 and the winding unit 4 are coaxial, meaning that the rotation center axis of the wire feeding unit for feeding the enameled wire coincides with the rotation center axis of the winding unit for winding the enameled wire. Specifically, the rotation center of the enameled wire raw material cylinder 37, the turntable 55, and the wire feeding guide component 7 coincides with the rotation center of the wire guide cylinder 60 of the winding unit 4. This effectively shortens the wire feeding stroke, reduces process interference, and further reduces potential tension impacts that may be caused by external interference.

[0084] The wire traction unit 5 includes a wire exit device mounting plate 70, an upper drive pulley assembly 8, a lower drive pulley assembly 9, a wire exit guide bracket 82, an upper pulley servo motor 78, and a lower pulley servo motor 73. The wire exit device mounting plate 70 is mounted on the wire exit device mounting bracket 86; the upper drive pulley assembly 8 and the lower drive pulley assembly 9 are both mounted on the wire exit device mounting plate 70; the wire exit guide bracket 82 is mounted on the wire exit device mounting plate 70 on one side of the upper drive pulley assembly 8 and the lower drive pulley assembly 9 to restrict the feeding direction of the Rogowski coil; the upper pulley servo motor 78 and the lower pulley servo motor 73 are both mounted on the wire exit device mounting plate 70, and their motor shafts are connected by a key to the drive pulley on which the upper and lower drive pulley assemblies are mounted; the wound Rogowski coil is pulled to the feeding area by the upper and lower pulley drive assemblies to complete the feeding, and at the same time, the upper and lower pulley drive assemblies also provide wire feeding power to the wire supply unit 2.

[0085] The transmission mechanism 6 includes a power shaft 96, a left power shaft retaining ring 93, a wire feeding drive pulley 94, a right power shaft retaining ring 95, a coupling 97, a winding drive pulley 98, and a DC servo motor 101, which provides power transmission for the wire feeding unit 3 and the winding unit 4.

[0086] One end of the power shaft 96 is mounted on the power shaft fixing seat 11, and the other end is fixed on the coupling 97; the left power shaft fixing ring 93 is mounted on the power shaft 96; the wire feeding drive pulley 94 is mounted on the power shaft 96 via a key connection; the right power shaft fixing ring 95 is mounted on the power shaft 96, and together with the left power shaft fixing ring 93, adjusts and fixes the installation position of the wire feeding drive pulley 94; the coupling 97 is mounted on the winding drive pulley 98; the winding drive pulley 98 is mounted on the DC servo motor shaft via a key connection; the DC servo motor 101 is mounted on the motor mounting bracket 91; the rotational power of the motor is transmitted through the winding drive pulley 98, the coupling 97, and the power shaft 96, thereby realizing the rotational drive of the wire feeding pulley group.

[0087] The working process for this application is as follows:

[0088] like Figure 3 As shown, the coil bobbin to be wound arrives at the left winding shaft fixing tube 33 of the wire feeding unit 3 after being guided by the inlet guide wheel 25, the lead guide wheel 28 and the outlet guide wheel 30 of the wire supply unit 2.

[0089] like Figure 4 As shown, the coil frame to be tested passes through the center through hole of the left winding shaft fixing tube 33, then through the center through hole of the left top cone 36, the center through hole of the enameled wire raw material tube 37, the center through hole of the right top cone 40 and the center through hole of the right winding shaft fixing tube 58, and finally reaches the wire nozzle 67 of the winding unit 4. It is then moved out evenly through the center through hole of the wire nozzle 67 and the coil winding is completed at this point.

[0090] Meanwhile, the enameled wire raw material drum 37 rotates together with the wire feeding driven pulley 35 under the clamping of the left and right top cones. The enameled wire that has been guided to the wire feeding guide assembly 7 beforehand rotates together with the wire feeding guide assembly 7, the turntable 55 and the winding driven pulley 56. The rotation direction around the wire feeding driven pulley is the same, but the transmission ratio of the two sets of pulleys is different. The speed of the winding driven pulley 56 is greater than that of the wire feeding driven pulley 35, so that the speed of the wire feeding guide assembly 7 is greater than that of the enameled wire raw material drum 37, thereby completing the wire feeding and supply work.

[0091] like Figure 5As shown, the enameled wire drawn from the enameled wire raw material cylinder 37 passes sequentially through the end conductor ceramic ring 44, transition conductor ceramic ring 49, and turntable conductor ceramic ring 51 of the wire feeding guide assembly 7, and then sequentially passes through the turntable through-hole and the winding driven pulley through-hole at the corresponding positions via the turntable wire-passing ceramic ring 52 before entering the through-hole of the conductor cylinder 60 on the winding unit 4. The other end of the through-hole is the winding through-hole ceramic ring 66. The enameled wire passes through the through-hole and exits at the winding through-hole ceramic ring 66, reaching the wire exit nozzle 67, where it completes the winding process together with the coil skeleton to be wound, which also arrives at this location. The tension impact experienced by the enameled wire during the wire feeding and feeding strokes is effectively buffered at the spring 46, thereby suppressing tension fluctuations, ensuring the stability of the enameled wire feeding, and ensuring the winding quality.

[0092] like Figure 6 As shown, the enameled wire led out from the winding guide ceramic ring 66 is fixed in advance to the coil frame to be wound from the center through hole of the wire outlet 67. Since the wire drum 60 installed on the winding driven pulley 56 rotates together with the pulley, the winding guide ceramic ring 66 installed on the wire drum 60 also rotates together, and drives the enameled wire to wind around the coil frame to be wound, so as to wind the enameled wire onto the coil frame and complete the coil winding.

[0093] like Figure 7 As shown, the wound coil enters the upper and lower transmission pulley assembly of the wire traction unit 5, is firmly clamped between the two sets of pulleys, and is pulled onto the wire guide bracket 82. This provides the power for continuous loading and unloading of the coil skeleton, and the constant pulley speed ensures the uniform movement of the coil skeleton, ensuring the uniformity of wire laying. The wire guide bracket 82 restricts the direction of the coil wire laying, ensuring that it is unloaded in the correct position.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic Rogowski coil tension buffer winding machine, characterized in that: It includes a wire supply unit, a wire feeding unit, a wire winding unit, a wire traction unit, a transmission unit, and a frame unit for fixing these units; wherein: The wire supply unit includes at least one guide wheel, which is arranged and installed on the wire feeding device mounting frame of the frame unit. The at least one guide wheel guides the coil bobbin to be wound to the winding shaft for coil winding. The wire feeding unit includes a wire feeding guide assembly, a turntable, a wire feeding driven pulley, and a winding driven pulley. The wire feeding operation is performed by the differential speed of the wire feeding driven pulley and the winding driven pulley. The winding unit guides the enameled wire to perform a winding motion and winds the coil at the wire outlet. The wire traction unit includes an upper and lower transmission pulley assembly. The wound Rogowski coil is pulled to the unloading area by the upper and lower transmission pulley assembly to complete the unloading. The transmission unit provides power transmission for the wire feeding unit and the wire winding unit; The wire feeding unit and the wire winding unit are coaxial in structure, and the wire feeding guide component includes an elastic buffer component, which suppresses tension fluctuations during the winding process.

2. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The wire feeding unit and the wire winding unit have a central through hole structure. This central through hole is a channel for the coil skeleton to be wound, guiding the coil skeleton to the wire outlet of the winding unit for coil winding.

3. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The wire feeding unit further includes a left winding shaft fixing tube, a left winding shaft fixing ring, a left top cone, an enameled wire raw material cylinder, a right top cone, a right winding shaft fixing tube, and a right winding shaft fixing ring. The left winding shaft fixing tube is installed on the winding shaft fixing seat of the frame unit, the left winding shaft fixing ring is installed on the left winding shaft fixing tube, and the wire feeding driven pulley is installed on the left winding shaft fixing tube, with a bearing inside connecting it. The left top cone is installed on the wire feeding driven pulley, and the enameled wire raw material cylinder is installed between the left and right top cones, rotating together with the wire feeding driven pulley through the top cone connection. The right top cone is installed on the right winding shaft fixing tube, which passes through the central shaft of the winding unit and is either directly fixedly connected to other parts or connected through a bearing. The right winding shaft fixing ring is installed on the right winding shaft fixing tube, the turntable is installed on the winding driven pulley, and the winding driven pulley is installed on the right winding shaft fixing tube through a bearing.

4. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The wire feeding driven pulley drives the enameled wire raw material drum to rotate, and the winding driven pulley drives the turntable and its wire feeding guide assembly to rotate. Both the wire feeding driven pulley and the winding driven pulley are powered by DC servo motors and have different transmission ratios. The winding driven pulley rotates at a higher speed than the wire feeding driven pulley, so that the rotation speed of the wire feeding guide assembly is greater than the rotation speed of the enameled wire raw material drum, thus completing the wire feeding and supply work.

5. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The wire feeding guide assembly further includes an end wire ceramic ring, a movable wire feeding bracket, a fixed wire feeding bracket, a transition wire ceramic ring, a corner bracket, and a turntable wire ceramic ring. The end wire ceramic ring is installed on the movable wire feeding bracket, which is connected to the fixed wire feeding bracket via a hinge. The fixed wire feeding bracket is installed on the corner bracket. The transition wire ceramic ring is installed on the fixed wire feeding bracket. The corner bracket and the turntable wire ceramic ring are installed on the turntable. The enameled wire fed from the enameled wire raw material spool passes sequentially through the end wire ceramic ring, the transition wire ceramic ring, the turntable wire ceramic ring, and the turntable wire-passing ceramic ring on the turntable to reach the winding unit.

6. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The elastic buffer assembly includes a spring, a movable spring bracket, and a fixed spring bracket. The two ends of the spring are respectively mounted on the movable wire feeding bracket and the fixed wire feeding bracket via the movable spring bracket and the fixed spring bracket. The spring suppresses tension fluctuations by applying a certain tension to the enameled wire to alleviate vibration and impact during operation.

7. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The winding unit includes a wire tube, a sliding bearing seat, a winding guide ceramic ring, and a wire outlet. The wire tube is mounted on the winding driven pulley and mates with the inner ring of the sliding bearing seat. The wire tube has a through hole, one end of which is connected to the turntable guide ceramic ring, and the other end is connected to the winding guide ceramic ring, guiding the enameled wire to the wire outlet. The sliding bearing seat is mounted on the shelf of the frame unit, and the winding guide ceramic ring and the wire outlet are mounted on the wire tube. The coil bobbin passes through the central axis of the winding unit and then exits evenly at the lead nozzle. At the same time, the enameled wire in the winding ceramic ring also rotates and winds along with the lead cylinder at the lead nozzle, winding the enameled wire onto the coil bobbin, thus completing the Rogowski coil winding process.

8. The Rogowski coil tension buffer fully automatic winding machine according to claim 7, characterized in that: The outlet nozzle is conical in shape.

9. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The wire traction unit includes a wire exit device mounting plate, an upper drive pulley assembly, a lower drive pulley assembly, a wire exit guide bracket, an upper pulley servo motor, and a lower pulley servo motor. The wire exit device mounting plate is mounted on the wire exit device mounting frame of the frame unit. Both the upper and lower drive pulley assemblies are mounted on the wire exit device mounting plate. The wire exit guide bracket is mounted on the wire exit device mounting plate on one side of the upper and lower drive pulley assemblies to restrict the feeding direction of the Rogowski coil. Both the upper and lower pulley servo motors are mounted on the wire exit device mounting plate, and the drive pulleys of the upper and lower drive pulley assemblies are connected to the motor shafts of the upper and lower pulley servo motors via keys. This provides power for the wire supply unit and is used to move the coil frame at a constant speed to achieve uniform wire arrangement.

10. The Rogowski coil tension buffer fully automatic winding machine according to claim 1, characterized in that: The transmission unit includes a power shaft, a left power shaft retaining ring, a pay-off drive pulley, a right power shaft retaining ring, a coupling, a winding drive pulley, and a DC servo motor. One end of the power shaft is mounted on a power shaft mounting base in the frame unit, and the other end is fixed to the coupling. The left power shaft retaining ring is mounted on the power shaft. The pay-off drive pulley is mounted on the power shaft via a key connection. The right power shaft retaining ring is mounted on the power shaft and, together with the left power shaft retaining ring, adjusts and fixes the position of the pay-off drive pulley. The coupling is mounted on the winding drive pulley. The winding drive pulley is mounted on the DC servo motor shaft via a key connection. The DC servo motor is mounted on a motor mounting bracket in the frame unit. The rotational power of the motor is transmitted through the winding drive pulley, the coupling, and the power shaft.

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