Dry-type power transformer coil manufacturing equipment and method

Abstract

The invention discloses dry-type power transformer coil manufacturing equipment and method.The manufacturing equipment comprises a base, a wire rod processing part, a wire rod drying part, an intermittent wire inlet part and a wire winding part, the wire rod processing part, the wire rod drying part, the intermittent wire inlet part and the wire winding part are sequentially arranged on the top of the base from left to right, and a wire penetrating pipe serves as a wire supply channel communicating the wire rod processing part, the wire rod drying part and the intermittent wire inlet part; the top of the base is further provided with a reciprocating deflection feeding mechanism used for driving the wire processing part, the wire drying part and the intermittent wire feeding part to conduct linkage action, the wire winding part is composed of a bracket used for winding wires and a wire arranging assembly, and the reciprocating deflection feeding mechanism is further used for driving the wire arranging assembly to conduct reciprocating wire arranging action. The reciprocating deflection feeding mechanism is used for driving the wire processing part, the wire drying part, the intermittent wire feeding part and the wire arranging assembly to perform linkage action, so that wire arranging in the whole cleaning, drying, intermittent wire pushing and winding processes can be realized only by one power source, and unnecessary energy loss is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing technology, specifically to equipment and methods for manufacturing dry-type power transformer coils. Background Technology

[0002] Dry-type transformers are widely used in power transmission and distribution. Whether it is a substation in an urban power grid, a power supply system in an industrial park, or a power distribution facility in a residential community, they all rely on their stable operation. As the core component of a dry-type transformer that realizes electromagnetic energy conversion, the winding quality of the coil directly affects the transformer performance.

[0003] In the prior art, such as the application with application number 202310433501.8, which discloses a motor coil winding device and a method for winding coils, the enameled wire is unwound by a wire unwinding and positioning mechanism, and a guiding mechanism is used to guide the enameled wire so that the enameled wire is aligned with the mold groove, thereby completing the winding of the unwound enameled wire.

[0004] However, the winding and guiding movement of the enameled wire mentioned in the above patent requires multiple power sources for control, which increases energy consumption. At the same time, the unwinding speed of the enameled wire is uncontrollable, which can easily lead to loose or uneven winding. Summary of the Invention

[0005] The purpose of this invention is to provide equipment and method for manufacturing dry-type power transformer coils to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions: Dry-type power transformer coil manufacturing equipment, the manufacturing equipment comprising: The base has a wire processing section, a wire drying section, an intermittent wire feeding section and a winding section arranged sequentially from left to right on its top. A wire threading tube is connected between the wire processing section, the wire drying section and the intermittent wire feeding section. The top of the base is also provided with a reciprocating oscillating feeding mechanism for driving the wire processing section, the wire drying section and the intermittent wire feeding section to perform linkage actions. The winding section consists of a bracket for winding the wire and a wire laying assembly. The reciprocating oscillating feed mechanism is also used to drive the wire laying assembly to perform reciprocating wire laying actions.

[0007] As a preferred embodiment of the manufacturing equipment described in this invention, the reciprocating oscillating feed mechanism includes two side plates fixed to the top of the base, a shaft is movably inserted between the two side plates, a driven wheel is movably sleeved on the outside of the shaft between the two side plates, a slot is opened on the outside of the shaft, a clip is fixedly provided on the inside of the driven wheel and slidably connected to the corresponding slot, and a driving wheel is rotatably installed between the two side plates, and the driving wheel and the driven wheel are connected by belt drive.

[0008] As a preferred embodiment of the manufacturing equipment described in this invention, the reciprocating oscillating feed mechanism further includes a cam plate fixedly connected to one end of a shaft. A protruding post is fixedly provided at the eccentric end of one side of the cam plate. A ball is fixedly connected to the end of the protruding post. A circular block is rotatably sleeved on the outside of the circular block. A straight rod is fixedly provided on the side of the circular block away from the protruding post. An annular cylinder is fixedly connected to one end of the straight rod.

[0009] As a preferred embodiment of the manufacturing equipment described in this invention, the wire processing unit includes a cover fixed to the top of the base and a rotating column rotatably installed on the top of the base. A slot is provided on the outer side of the cover. The rotating column and the cover are concentrically arranged. An annular cylinder is movably sleeved on the outer side of the rotating column. A second slot is provided on the outer side of the rotating column. A second clip is fixedly provided on the inner side of the annular cylinder and slidably connected to the inside of the corresponding second slot. The wire processing unit also includes two turntables, one of which is fixed to the top of the rotating column and the other is rotatably installed at the top of the inner cavity of the cover. The two turntables are fixed with toothed blocks evenly distributed in a ring at the opposite side edges. Gears that mesh with both sets of toothed blocks are rotatably installed on the inner side of the cover between the two turntables. Sponge blocks soaked in anhydrous ethanol are fixed at the center of the opposite side of the two turntables.

[0010] As a preferred embodiment of the manufacturing equipment described in this invention, the wire drying section includes a ring sleeve and a support plate rotatably mounted on the outside of the shaft via a bearing. The bottom of the ring sleeve is integrally formed with a cover frame, a crossbar is fixedly connected between the ring sleeve and the cover cylinder, and an exhaust pipe is connected to the top of the ring sleeve. The bottom of the inner cavity of the ring is provided with a groove, and both ends of the bottom of the groove are provided with air holes that communicate with the cover frame. A U-shaped branch pipe is connected between the two ends of the cover frame, and a main pipe is connected in the middle of the branch pipe. A movable plate is movably installed inside the cover frame. A pull rod that movably passes through the cover frame is fixedly connected to one side of the movable plate. An L-shaped plate that fits against the outside of the cover frame is fixedly connected to one end of the pull rod that extends to the outside of the cover frame. The end of the L-shaped plate away from the pull rod is fixedly connected to the support plate. A blocking plate is hingedly installed at the position of the air hole inside the groove and at the position of the connecting branch pipe inside the cover frame.

[0011] As a preferred embodiment of the manufacturing equipment described in this invention, the intermittent feed section includes a ring tube fixed to the outside of one of the side plates and two core rods. A rotating drum is rotatably mounted on one end of the ring tube via a bearing. Rotary rollers for supporting the rotating drum are rotatably sleeved on the outside of the two core rods. One end of the shaft passes through the ring tube and the inside of the rotating drum in sequence. A card strip three is also fixedly provided inside the rotating drum and slidably connected to the inside of the card slot. An intermittent feed assembly is provided between the rotating drum and the corresponding side plate.

[0012] As a preferred embodiment of the manufacturing equipment described in this invention, the intermittent feed assembly includes a horizontal seat fixed to one side of the corresponding side plate and a guide groove opened on the outside of the rotating drum. A cross groove is opened through the middle of the horizontal seat, a cross seat is slidably installed inside the cross groove, a lever is fixedly provided at the bottom of the cross seat and slidably connected to the inside of the guide groove, and a support rod is fixedly provided at the top of the cross seat. A U-shaped seat is fixedly provided at the top of the support rod. A swaying protrusion is rotatably installed at the top of the U-shaped seat. An arc rod that moves through the swaying protrusion is fixedly provided on one side of the U-shaped seat. A baffle is fixedly provided at one end of the arc rod that passes through the swaying protrusion. An arc spring located between the swaying protrusion and the U-shaped seat is sleeved on the outside of the arc rod. A straight spring is fixedly connected between the cross seat and the side plate.

[0013] As a preferred embodiment of the manufacturing equipment described in this invention, the wiring assembly includes a driven wheel two rotatably mounted between two side plates and a rotating shaft fixedly connected to the central axis of the driven wheel two. The driven wheel one and the driven wheel two are also connected by belt drive. A heart-shaped protrusion is fixedly sleeved on the outer side of one end of the rotating shaft.

[0014] As a preferred embodiment of the manufacturing equipment described in this invention, the wiring assembly further includes an ear seat fixed to the top of the base. A swing bar is hinged to the top of the ear seat and is arranged coplanarly with the heart-shaped protrusion. A straight spring is fixedly connected between the swing bar and the base. A limiting groove is opened on one side of the swing bar, and a through groove is opened on one side of the bracket. An I-shaped square column is slidably connected inside the through groove. A round rod passing through the limiting groove is fixedly connected to one side of the I-shaped square column. A wire hole is also opened at the upper end of the swing bar.

[0015] The present invention also provides a method for producing dry-type power transformer coils using the above-mentioned dry-type power transformer coil manufacturing equipment, specifically including the following operation steps: S1. Threading and installing the winding core: Insert the wire to be wound into one end of the threading tube, and after the inserted end passes through the wire processing station, the wire drying station and the intermittent wire feeding station in sequence, pass the wire exit end through the wire hole. At the same time, install the winding core on the bracket, and then fix the end of the wire that passes through the wire hole to the winding core. S2, Winding: Simultaneously start the reciprocating oscillating feed mechanism and the winding section to work, so that the intermittent feed section pushes the wire to the winding section in an intermittent manner, and uses the wire laying assembly in conjunction with the rotation of the winding core to evenly wind the wire on the surface of the winding core. S3. Cutting: After winding is completed, the wire is cut and a new winding core is placed on the bracket for the next round of automatic winding.

[0016] The beneficial effects of this invention are: 1. This invention can drive the wire processing section, wire drying section, intermittent wire feeding section and wire winding section to perform linked actions by the continuous rotation of the upper shaft of the reciprocating oscillating feed mechanism and the left and right reciprocating movement, thereby realizing the automatic cleaning, drying, intermittent wire pushing and wire winding process of the wire. The entire cleaning, drying, intermittent wire pushing and wire winding process only requires one power source, which effectively reduces unnecessary energy consumption. 2. This invention replaces the transmission unwinding mechanism with an intermittent feed method for automatic unwinding. The low speed and pause rhythm of the intermittent feed can significantly reduce friction and tension fluctuations, thereby reducing mechanical damage to the insulation layer. At the same time, it can avoid the inertial deviation of the wire caused by continuous high-speed feed. 3. By setting double-ended air inlets and outlets on the integrally formed cover frame and ring sleeve, the present invention can realize the simultaneous heating of cold air and the supply of hot air to dry the anhydrous ethanol on the surface of the wire, ensuring the continuity of the wire surface drying process and improving the drying effect. In addition, by using the intermittent pushing method, the wire can be intermittently stopped at the wire surface cleaning station and the drying station, which is beneficial to improving the cleaning and drying effect. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a first-view overall structural schematic diagram of the manufacturing equipment of the present invention; Figure 2 This is a second-view overall structural schematic diagram of the manufacturing equipment of the present invention; Figure 3 This is a first-view structural schematic diagram of the wire processing section of the manufacturing equipment of the present invention; Figure 4 This is a second-view structural schematic diagram of the wire processing section of the manufacturing equipment of the present invention; Figure 5 This is a schematic diagram of the wire drying section of the manufacturing equipment of the present invention; Figure 6 This is a partial structural cross-sectional view of the wire drying section of the manufacturing equipment of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged schematic diagram of section A in the middle; Figure 8 This is a schematic diagram of the intermittent feed section of the manufacturing equipment of the present invention; Figure 9 This is a partial cross-sectional view of the reciprocating oscillating feed mechanism of the manufacturing equipment of the present invention; Figure 10 This is a schematic diagram of the winding section structure of the manufacturing equipment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Base; 2. Reciprocating oscillating feed mechanism; 21. Side plate; 22. Shaft; 23. Driving wheel; 24. Driven wheel 1; 25. Cam plate; 26. Protruding column; 27. Sphere; 28. Circular block; 29. ​​Straight rod; 210. Ring cylinder; 3. Wire processing section; 31. Cover cylinder; 32. Groove; 33. Rotating column; 34. Turntable; 35. Gear; 36. Sponge block; 4. Wire drying section; 41. Support plate; 42. Ring sleeve; 43. Cover frame; 44. Crossbar; 45. Exhaust pipe; 46. L-shaped plate; 47. Branch pipe; 48. Main pipe; 49. Settling tank; 410. Blocking plate; 411. Moving plate; 412 5. Pull rod; 6. Intermittent wire inlet section; 7. Ring tube; 8. Rotary drum; 9. Horizontal seat; 10. Lever; 11. Support rod; 12. U-shaped seat; 13. Swinging protrusion; 14. Arc rod; 15. Baffle; 16. Arc spring; 17. Guide groove; 18. Straight spring one; 19. Core rod; 20. Rotary roller; 10. Winding section; 11. Bracket; 12. Cable assembly; 13. Shaft; 14. Ear seat; 15. Heart-shaped protrusion; 16. Swing bar; 17. Straight spring two; 18. Through groove; 19. I-shaped square column; 20. Restriction groove; 21. Round rod; 22. Driven wheel two; 33. Threading tube. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The transformer in this invention is a type of power device in the smart grid industry. The coil is a part of the transformer. The dry-type power transformer coil manufacturing equipment is a type of equipment used to manufacture coils, and is used to perform surface cleaning and automatic winding of round wires to be wound. Example

[0022] Refer to the instruction manual appendix Figure 1 This embodiment is the first embodiment of the present invention, providing a dry-type power transformer coil manufacturing equipment. The manufacturing equipment includes a base 1 and a wire processing section 3, a wire drying section 4, an intermittent wire feeding section 5, and a winding section 6 arranged sequentially from left to right on the top of the base 1. A wire threading tube 7 is used as a wire supply channel connecting the wire processing section 3, the wire drying section 4, and the intermittent wire feeding section 5. The wire processing section 3, the wire drying section 4, and the intermittent wire feeding section 5 are driven to perform linkage actions by a reciprocating oscillating feeding mechanism 2, so as to realize automatic cleaning, drying, intermittent wire pushing, and winding of the wire.

[0023] It should be noted that the present invention can use a single power source to drive the wire processing unit 3, the wire drying unit 4, and the intermittent wire feeding unit 5 to perform coordinated actions, thereby achieving automatic cleaning, drying, and intermittent wire pushing of the wire and reducing unnecessary energy consumption.

[0024] Furthermore, such as Figure 2 , Figure 4 and Figure 8 As shown, the reciprocating oscillating feed mechanism 2 includes two side plates 21 fixed to the top of the base 1. A shaft 22 is movably inserted between the two side plates 21. A driven wheel 24 located between the two side plates 21 is movably sleeved on the outside of the shaft 22. The two side plates 21 are used to restrict the position of the driven wheel 24 to prevent it from moving axially along the shaft 22. A slot is provided on the outside of the shaft 22. A retaining strip is fixedly provided on the inside of the driven wheel 24 and slidably connected to the corresponding slot. The cooperation between the slot and the retaining strip allows the driven wheel 24 to rotate synchronously with the shaft 22 when it rotates. A drive wheel 23 is also rotatably installed between the two side plates 21. The drive wheel 23 is driven to rotate by a drive motor (using a Y-series AC motor) fixedly installed on one side of one of the side plates 21. The drive wheel 23 and the driven wheel 24 are connected by a belt drive.

[0025] Furthermore, the reciprocating oscillating feed mechanism 2 also includes a cam plate 25 fixedly connected to one end of the shaft 22. A protrusion 26 is fixedly provided on the eccentric end of one side of the cam plate 25. A ball 27 is fixedly connected to the end of the protrusion 26. A circular block 28 is rotatably sleeved on the outside of the ball 27. A straight rod 29 is fixedly provided on the side of the circular block 28 away from the protrusion 26. An annular cylinder 210 is fixedly connected to one end of the straight rod 29. The cam plate 25, the protrusion 26 connected to one side of the cam plate 25, the ball 27 connected to one end of the protrusion 26, the circular block 28 rotatably sleeved on the outside of the ball 27, and the straight rod 29 fixedly connecting the circular block 28 and the annular cylinder 210 can constitute the power source of the wire processing unit 3. The continuously rotating shaft 22 drives the power source to drive the wire processing unit 3 to perform surface cleaning on the wire to be wound, so as to remove oil, dust and transportation residues from the surface of the wire.

[0026] It should be noted that during the operation of the reciprocating oscillating feed mechanism 2, the drive motor drives the drive wheel 23 to rotate, and the belt drives the driven wheel 24 to rotate continuously. Since the retaining strip on the inner side of the driven wheel 24 is slidably connected to the corresponding retaining groove on the outer side of the shaft 22, the rotating driven wheel 24 will drive the shaft 22 to rotate synchronously, and the continuously rotating shaft 22 will drive the power source to control the wire processing unit 3 to perform the wire surface cleaning action.

[0027] Furthermore, such as Figures 2-4 and Figure 8 As shown, the wire processing unit 3 includes a cover 31 fixed to the top of the base 1 and a rotating column 33 rotatably mounted on the top of the base 1. The cover 31 has a slot 32 on its outer side. The rotating column 33 and the cover 31 are concentrically arranged. The ring cylinder 210 extends through the slot 32 into the inside of the cover 31 and is movably sleeved on the outside of the rotating column 33. The rotating column 33 has a second slot on its outer side. The inner side of the ring cylinder 210 is fixed with a second clip that is slidably connected to the inside of the corresponding second slot. The ring cylinder 210 can rotate synchronously with the rotating column 33 when it rotates through the cooperation between the second slot and the second clip.

[0028] Furthermore, the wire processing unit 3 also includes two turntables 34. One turntable 34 is fixed to the top of the rotating column 33, and the other turntable 34 is rotatably mounted on the top of the inner cavity of the cover 31. The peripheral surfaces of the two turntables 34 are movably fitted against the inner side of the cover 31. A ring-shaped, evenly distributed toothed block is fixedly provided on the opposite edges of the two turntables 34. A gear 35, meshing with both sets of toothed blocks, is rotatably mounted on the inner side of the cover 31 between the two turntables 34. The gear 35 can be used to drive the two turntables 34 to rotate in opposite directions. Anhydrous ethanol-soaked material is fixedly provided at the center of the opposite sides of the two turntables 34. The two sponge blocks 36 are fitted together on opposite sides, and an arc groove with a constricted opening in the middle along the wire feeding direction is opened to ensure that the wire can be smoothly inserted between the two sponge blocks 36. A closed-loop recessed cavity is opened on the top of the lower turntable 34 outside the sponge block 36 to collect the anhydrous ethanol that overflows when the wire squeezes the sponge block 36 in the area between the two sponge blocks 36. At the same time, a liquid replenishment pipe for replenishing anhydrous ethanol to the upper sponge block 36 should be set at the position on the top of the cover 31 corresponding to the central axis of the upper turntable 34 (not specifically drawn in the figure, but can be set according to actual needs).

[0029] It should be noted that during the process of using the continuously rotating shaft 22 to drive the corresponding power source to control the wire processing unit 3 to clean the surface of the wire, the continuously rotating shaft 22 will drive the cam plate 25 to rotate synchronously. Due to the eccentric setting of the protrusion 26 and the ring cylinder 210 being sleeved on the outside of the rotating column 33, during the continuous rotation of the cam plate 25, the ball 27 will swing inside the groove on the circular block 28, causing the circular block 28 to perform a swaying circular motion. This causes the ring cylinder 210 to rotate in both directions and also move up and down. During the reciprocating motion, the drive ring cylinder 210 rotates to drive the rotating column 33 to rotate, and drives the lower rotating disk 34 to rotate synchronously. Then, through the transmission of the gear 35, the upper rotating disk 34 rotates in the opposite direction to the lower rotating disk 34, thereby driving the two sponge blocks 36 to deflect and wipe the surface of the wire, and better squeeze out the anhydrous ethanol in the sponge blocks 36. After wiping, the excess anhydrous ethanol will be absorbed again by the sponge blocks 36. The reciprocating motion of the drive ring cylinder 210 is to avoid affecting the wiping process of the wire.

[0030] Furthermore, such as Figure 2 and Figures 5-8 As shown, the wire drying section 4 includes a ring 42 and a support plate 41 rotatably mounted on the outside of the shaft 22 via a bearing. The bottom of the ring 42 is integrally formed with a cover frame 43. A crossbar 44 is fixedly connected between the ring 42 and the cover cylinder 31. The crossbar 44 can provide auxiliary support for the ring 42, so that the wire drying section 4 and the wire feeding section 5 in the area will not bend due to the large gravity, thus ensuring the stable operation of the wire feeding process. An exhaust pipe 45 is connected to the top of the ring 42.

[0031] Furthermore, a recessed groove 49 is provided at the bottom of the inner cavity of the ring 42. Air holes communicating with the cover frame 43 are provided at both ends of the bottom of the recessed groove 49. An annular perforated plate concentrically arranged with the ring 42 is provided inside the ring 42. A U-shaped branch pipe 47 connects the two ends of the cover frame 43. One-way valves, allowing only air supply to the inside of the cover frame 43, are installed at both ends of the branch pipe 47. A main pipe 48 is connected to the middle of the branch pipe 47. A movable plate 411 is movably installed inside the cover frame 43. Sealing strips are applied to the outer side of the movable plate 411 where it contacts the inner wall of the cover frame 43 and the outer wall of the ring 42. The movable plate 411 divides the cavity between the cover frame 43 and the ring sleeve 42 into two independent sections. A heating plate that runs through the two independent sections is fixedly embedded at the bottom of the inner cavity of the cover frame 43. A pull rod 412 that moves through the cover frame 43 is fixedly connected to one side of the movable plate 411. An L-shaped plate 46 that fits against the outside of the cover frame 43 is fixedly connected to one end of the pull rod 412 that extends to the outside of the cover frame 43. The end of the L-shaped plate 46 that is away from the pull rod 412 is fixedly connected to the support plate 41. A blocking plate 410 is hingedly installed at the position of the air hole inside the sink 49 and at the position of the connecting branch pipe 47 inside the cover frame 43.

[0032] It should be noted that a condensation recovery device can be added to the outlet end of the exhaust pipe 45 to condense and recover the anhydrous ethanol vapor generated during heating for reuse. Specifically, during the drying process of the residual anhydrous ethanol on the wiped wire surface, the support plate 41 is driven by the reciprocating shaft 22 to perform reciprocating linear motion. When the support plate 41 moves to the right under the push of the shaft 22 (refer to...), Figure 6 When the L-shaped plate 46 moves to the right synchronously, the moving plate 411 moves to the right synchronously. During the movement of the moving plate 411 to the right, the space in the left section of the cover frame 43 increases, which causes the blocking plate 410 at the left end of the sink 49 to tightly block the corresponding air hole. Correspondingly, the blocking plate 410 at the position of the branch pipe 47 in the left section of the cover frame 43 will open under the action of negative pressure, allowing the clean cold air inside the main pipe 48 to enter the left section of the cover frame 43 from the left end of the branch pipe 47 for heating. As the volume of the right section of the cover frame 43 decreases, the blocking plate 410 at the left end of the cover frame 43 will block the corresponding end of the branch pipe 47 under the action of pressure. Correspondingly, the blocking plate 410 at the right end of the sink 49 will be pushed open under the action of pressure, allowing the heated air inside the right section of the cover frame 43 to be forced into the ring 42 to dry the anhydrous ethanol on the surface of the wire passing through the ring 42. Similarly, when the moving plate 411 moves to the left, the air intake and exhaust conditions of the two sides of the inner side of the cover frame 43 are opposite to those of the moving plate 411 moving to the right. Furthermore, the end of the exhaust pipe 45 extending into the inner side of the annular perforated plate should extend to the inner side of the annular perforated plate. This ensures that the hot air pressed into the inner side of the annular perforated plate will enter through the holes in the annular perforated plate and be discharged from the exhaust pipe 45 after drying the wire.

[0033] Furthermore, such as Figure 1 and Figures 8-9 As shown, the intermittent feed section 5 includes an annular tube 51 fixed to the outside of one of the side plates 21 and two core rods 513. A rotating drum 52 is rotatably mounted on one end of the annular tube 51 via a bearing. Rotary rollers 514 for supporting the rotating drum 52 are rotatably sleeved on the outside of each of the two core rods 513. One end of the shaft 22 is sequentially movably inserted into the annular tube 51 and the rotating drum 52. A locking strip 3 is also fixedly installed inside the rotating drum 52 and slidably connected to the slot 1. The cooperation between the slot 1 and the locking strip 3 allows the rotating drum 52 to rotate synchronously when the shaft 22 rotates, but it does not affect the lateral movement of the shaft 22. During the lateral reciprocating movement of the shaft 22, the locking strip 3 inside the rotating drum 52 will never disengage from the corresponding slot 1. An intermittent feed assembly is provided between the rotating drum 52 and the corresponding side plate 21.

[0034] Furthermore, the intermittent feed assembly includes a horizontal seat 53 fixed to one side of the corresponding side plate 21 and a guide groove 511 opened on the outside of the rotating drum 52. The guide groove 511 consists of two inclined arc grooves and two straight grooves, and the two inclined arc grooves and the two straight grooves are arranged in an alternating head-to-tail closing configuration. A cross groove is opened through the middle of the horizontal seat 53, and a cross seat is slidably installed inside the cross groove. A lever 54 is fixedly provided at the bottom of the cross seat and slidably connected to the inside of the guide groove 511. A support rod 55 is fixedly provided at the top of the cross seat.

[0035] Furthermore, a U-shaped seat 56 is fixedly mounted on the top of the support rod 55. A tilting protrusion 57 is rotatably mounted on the top of the U-shaped seat 56. An arc rod 58 that movably passes through the tilting protrusion 57 is fixedly mounted on one side of the U-shaped seat 56. A baffle 59 is fixedly mounted on one end of the arc rod 58 that passes through the tilting protrusion 57. An arc spring 510 is sleeved on the outside of the arc rod 58 between the tilting protrusion 57 and the U-shaped seat 56. A straight spring 512 is fixedly connected between the cross seat and the side plate 21. When the tilting protrusion 57 is in contact with the baffle 59 under the action of the arc spring 510, the arc spring 510 is still in a compressed state, ensuring that the tilting protrusion 57 will not tilt downwards when the wire is fed in. At the same time, when the lever 54 is in such a state... Figure 8 In the state shown, the straight spring 512 is in a stretched state, so that the lever 54, which is pushed along the inclined arc groove, will not elastically reciprocate along the straight groove when it enters the adjacent straight groove and instantly retracts.

[0036] It should be noted that during the intermittent feeding process of the dried wire, the rotating drum 52 is driven to rotate by the continuous rotation of the shaft 22. Since the bottom end of the lever 54 is always slidably connected to the inside of the guide groove 511, and the lever 54 can only move linearly along the cross groove, when the lever 54 slides along the inclined arc groove during the rotation of the rotating drum 52, the lever 54 will gradually move away from the side plate 21 under the rotation of the rotating drum 52. At this time, the swaying protrusion 57 will always be in contact with the baffle 59 under the action of the arc spring 510, and the upper end of the swaying protrusion 57 will tightly press against the wire. Thus, the swaying protrusion 57, which moves away from the side plate 21 with the lever 54, will press against the wire and push it towards the winding station. At the same time, the cross seat, which moves synchronously with the lever 54, will stretch the straight spring 512. When the lever 54 moves from the inclined arc groove into the adjacent straight groove as the rotating drum 52 rotates, the cross seat will instantly retract to the end of the straight groove near the side plate 21 under the tensile restoring force of the straight spring 512. At the same time, it will drive the lever 54 and the swaying protrusion 57 to reset synchronously. During this process, the swaying protrusion 57 will compress the arc spring 510 along the direction of the arc rod 58 under the resistance of the wire in its retraction direction. This allows the swaying protrusion 57 to smoothly retract to the initial push wire position without affecting the position of the wire.

[0037] Therefore, by driving the drum 52 to rotate continuously, the dried wire can be intermittently pushed. During this intermittent pushing process, the low speed and pause rhythm of the intermittent wire feeding can be used to greatly reduce friction and tension fluctuations, thereby reducing mechanical damage to the insulation layer. At the same time, it can avoid the inertial deviation of the wire caused by continuous high-speed wire feeding. In addition, the intermittent wire feeding component can provide a clamping force to the wire by the swaying protrusion 57, which is pressed by the arc spring 510, after the wire is wound and cut accordingly, preventing the wire from loosening at the moment of cutting. Example

[0038] Refer to the instruction manual appendix Figure 2This embodiment is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the winding section consists of a bracket 61 for winding the wire and a wire laying assembly 62. The reciprocating oscillating feed mechanism 2 is also used to drive the wire laying assembly 62 to perform reciprocating wire laying action. The bracket 61 consists of two side frames and a connecting plate connecting the two side frames. The top of each side frame is provided with a slot, and a U-shaped clamping shaft for clamping the winding core is rotatably installed inside the two slots. One of the U-shaped clamping shafts is driven to rotate by a servo motor (model JSMA-PUC02D) fixedly installed on one side of the corresponding side frame. After the winding core is set up, a matching fastener plate is also needed to fasten the top of the side frame. In addition, a laser Doppler velocimeter (LDA) for testing the wire feeding speed is installed at the position of the intermittent wire feeding section 5. This testing instrument is not specifically drawn in the figure and can be selectively installed according to the actual installation requirements. The setting of this testing instrument is beneficial to control the wire winding speed in conjunction with the servo motor of the winding station.

[0039] Furthermore, such as Figure 10 As shown, the cable assembly 62 includes a driven wheel 6210 rotatably mounted between two side plates 21 and a rotating shaft 621 fixedly connected to the central axis of the driven wheel 6210. The driven wheel 24 and the driven wheel 6210 are also connected by belt drive. A heart-shaped protrusion 623 is fixedly sleeved on the outer side of one end of the rotating shaft 621.

[0040] Furthermore, the cable assembly 62 also includes an ear seat 622 fixed to the top of the base 1. A swing bar 624, coplanar with the heart-shaped protrusion 623, is hinged to the top of the ear seat 622. A straight spring 625 is fixedly connected between the swing bar 624 and the base 1. A V-shaped top block is fixedly provided on the side of the swing bar 624 facing the heart-shaped protrusion 623. When the V-shaped top block on the swing bar 624 is in contact with the circumferential side of the heart-shaped protrusion 623, the straight spring 625 is always in a state of being... In the stretched state, a limiting groove 628 is provided on one side of the swing bar 624, and a through groove 626 is provided on one side of the bracket 61. An I-shaped square column 627 is slidably connected inside the through groove 626. A round rod 629 passing through the limiting groove 628 is fixedly connected to one side of the I-shaped square column 627. The limiting groove 628, the through groove 626, the I-shaped square column 627, and the round rod 629 can form a limiting component for limiting the stable swing of the swing bar 624. A wire hole is also provided at the upper end of the swing bar 624.

[0041] It should be noted that during the winding process of the advancing wire, the speed of the servo motor driving the winding core is controlled by the detected wire feeding speed, so that the wire is evenly wound on the target winding core. During the winding process, the rotating driven wheel 24 drives the driven wheel 6210 to rotate via a belt. The rotating driven wheel 6210 drives the heart-shaped protrusion 623 to rotate. During the rotation of the heart-shaped protrusion 623, since the V-shaped top block on the swing bar 624 is always in contact with the circumferential side of the heart-shaped protrusion 623, the heart-shaped protrusion 623 will intermittently push the swing bar 624 to the side away from the heart-shaped protrusion 623 during continuous rotation, and repeatedly stretch the straight spring 625. In this way, the wire can be evenly wound between layers according to the passive reciprocating swing process of the swing bar 624.

[0042] The passive reciprocating swing process of the swing bar 624 is as follows: when the tip of the V-shaped top block abuts against the recessed area outside the heart-shaped protrusion 623, the swing bar 624 is in a position as follows: Figure 10 As shown, when the V-shaped top block moves from the recessed area to its corresponding protruding end, the swing bar 624 will gradually swing to the right to the other end of the winding core. Then, during the movement from the protruding end to the corresponding recessed area, the swing bar 624 will swing from right to left.

[0043] Furthermore, based on the aforementioned dry-type power transformer coil manufacturing equipment, this invention also provides a method for manufacturing dry-type power transformer coils, specifically including the following operational steps: S1. Threading and installing the winding core: Insert the wire to be wound into one end of the threading tube 7, and after the inserted end passes through the wire processing station, the wire drying station and the intermittent wire feeding station in sequence, pass the wire exit end through the wire hole. At the same time, install the winding core on the bracket 61, and then fix one end of the wire that passes through the wire hole on the winding core. S2, winding: Simultaneously start the reciprocating oscillating feed mechanism 2 and the winding section 6 to work, so that the intermittent feed section 5 pushes the wire to the winding section 6 in an intermittent manner, and uses the wire laying assembly 62 in conjunction with the rotation of the winding core to evenly wind the wire on the surface of the winding core. S3. Cutting: After winding is completed, the wire is cut and a new winding core is placed on the bracket 61 for the next round of automatic winding.

[0044] The working principle of the aforementioned manufacturing equipment is as follows: The wire to be wound is inserted into one end of the threading tube 7. After the inserted end passes through the wire processing station, the wire drying station, and the intermittent wire feeding station in sequence, the exit end of the wire passes through the wire hole at the upper end of the swing bar 624. Simultaneously, the winding core is installed on the bracket 61. Then, the end of the wire passing through the wire hole is fixed to the winding core. At the same time, the drive motor and servo motor are started, causing the drive motor to continuously rotate the shaft 22. This is related to the power source constituting the wire processing section 3. Under structural constraints, the shaft 22 is also controlled to move left and right in the horizontal direction. In this way, the continuous rotation and reciprocating movement of the shaft 22 can be used to control the two sponge blocks 36 to deflect and wipe the surface of the wire, control the continuous supply of hot air into the ring to dry the anhydrous ethanol remaining on the surface of the wire, control the swaying protrusion 57 to push the wire against the winding station, and control the heart-shaped protrusion 623 to push the swing bar 624 to uniformly reciprocate the wire during the winding process, so as to achieve the purpose of fully automated production.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. Dry-type power transformer coil manufacturing equipment, characterized in that, The manufacturing equipment includes: The base (1) has a wire processing section (3), a wire drying section (4), an intermittent wire feeding section (5) and a winding section (6) arranged sequentially from left to right on the top of the base (1). A wire threading tube (7) is provided between the wire processing section (3), the wire drying section (4) and the intermittent wire feeding section (5). The top of the base (1) is also provided with a reciprocating oscillating feeding mechanism (2) for driving the wire processing section (3), the wire drying section (4) and the intermittent wire feeding section (5) to perform linkage actions. The winding section consists of a bracket (61) for winding the wire and a wire laying assembly (62). The reciprocating oscillating feed mechanism (2) is also used to drive the wire laying assembly (62) to perform reciprocating wire laying actions.

2. The dry-type power transformer coil manufacturing equipment according to claim 1, characterized in that, The reciprocating oscillating feed mechanism (2) includes two side plates (21) fixed on the top of the base (1). A shaft (22) is inserted through the two side plates (21). A driven wheel (24) located between the two side plates (21) is movably sleeved on the outside of the shaft (22). A slot is opened on the outside of the shaft (22). A clip is fixed on the inside of the driven wheel (24) and slidably connected to the corresponding slot. A drive wheel (23) is also rotatably installed between the two side plates (21). The drive wheel (23) and the driven wheel (24) are connected by belt drive.

3. The dry-type power transformer coil manufacturing equipment according to claim 2, characterized in that, The reciprocating oscillating feed mechanism (2) also includes a cam plate (25) fixedly connected to one end of the shaft (22). A protrusion (26) is fixedly provided on the eccentric end of one side of the cam plate (25). A ball (27) is fixedly connected to the end of the protrusion (26). A round block (28) is rotatably sleeved on the outside of the ball (27). A straight rod (29) is fixedly provided on the side of the round block (28) away from the protrusion (26). A ring cylinder (210) is fixedly connected to one end of the straight rod (29).

4. The dry-type power transformer coil manufacturing equipment according to claim 3, characterized in that, The wire processing unit (3) includes a cover (31) fixed on the top of the base (1) and a rotating column (33) rotatably installed on the top of the base (1). The cover (31) has a slot (32) on its outer side. The rotating column (33) and the cover (31) are concentrically arranged. The ring cylinder (210) is movably sleeved on the outer side of the rotating column (33). The rotating column (33) has a second slot on its outer side. The ring cylinder (210) has a second clip that is slidably connected to the inside of the corresponding second slot. The wire processing unit (3) also includes two turntables (34), one of which is fixed to the top of the rotating column (33), and the other is rotatably installed on the top of the inner cavity of the cover (31). The two turntables (34) are fixed with toothed blocks evenly distributed in a ring at the opposite side edges. The inner side of the cover (31) between the two turntables (34) is rotatably installed with gears (35) that mesh with both sets of toothed blocks. The two turntables (34) are fixed with sponge blocks (36) soaked in anhydrous ethanol at the center of opposite sides.

5. The dry-type power transformer coil manufacturing equipment according to claim 4, characterized in that, The wire drying section (4) includes a ring sleeve (42) and a support plate (41) rotatably mounted on the outside of the shaft (22) via a bearing. The bottom of the ring sleeve (42) is integrally formed with a cover frame (43). A crossbar (44) is fixedly connected between the ring sleeve (42) and the cover cylinder (31). An exhaust pipe (45) is connected to the top of the ring sleeve (42). The inner cavity of the ring (42) is provided with a groove (49) at the bottom. Both ends of the bottom of the groove (49) are provided with air holes that communicate with the cover frame (43). A U-shaped branch pipe (47) is connected between the two ends of the cover frame (43). A main pipe (48) is connected in the middle of the branch pipe (47). A movable plate (411) is installed inside the cover frame (43). A pull rod (412) that moves through the cover frame (43) is fixedly connected to one side of the movable plate (411). An L-shaped plate (46) that fits against the outside of the cover frame (43) is fixedly connected to one end of the pull rod (412) that extends to the outside of the cover frame (43). An L-shaped plate (46) that fits against the outside of the cover frame (43) is fixedly connected to one end of the L-shaped plate (46) that is away from the pull rod (412). A blocking plate (410) is hingedly installed at the position of the air hole inside the groove (49) and at the position of the connecting branch pipe (47) inside the cover frame (43).

6. The dry-type power transformer coil manufacturing equipment according to claim 5, characterized in that, The intermittent feed section (5) includes an annular tube (51) fixed on the outside of one of the side plates (21) and two core rods (513). A rotating drum (52) is rotatably mounted on one end of the annular tube (51) via a bearing. Rotary rollers (514) for supporting the rotating drum (52) are rotatably sleeved on the outside of the two core rods (513). One end of the shaft (22) is sequentially movably inserted into the annular tube (51) and the rotating drum (52). A card strip three is also fixedly installed inside the rotating drum (52) and slidably connected to the inside of the card slot. An intermittent feed assembly is provided between the rotating drum (52) and the corresponding side plate (21).

7. The dry-type power transformer coil manufacturing equipment according to claim 6, characterized in that, The intermittent feed assembly includes a horizontal seat (53) fixed on one side of the corresponding side plate (21) and a guide groove (511) opened on the outside of the rotating drum (52). A cross groove is opened through the middle of the horizontal seat (53), and a cross seat is slidably installed inside the cross groove. A lever (54) is fixedly provided at the bottom of the cross seat and slidably connected inside the guide groove (511). A support rod (55) is fixedly provided at the top of the cross seat. The top of the support rod (55) is fixedly provided with a U-shaped seat (56), and a swaying protrusion (57) is rotatably installed on the top of the U-shaped seat (56). An arc rod (58) that moves through the swaying protrusion (57) is fixedly provided on one side of the U-shaped seat (56). A baffle (59) is fixedly provided at one end of the arc rod (58) that passes through the swaying protrusion (57). An arc spring (510) located between the swaying protrusion (57) and the U-shaped seat (56) is sleeved on the outside of the arc rod (58). A straight spring (512) is fixedly connected between the cross seat and the side plate (21).

8. The dry-type power transformer coil manufacturing equipment according to claim 7, characterized in that, The wiring assembly (62) includes a driven wheel two (6210) rotatably mounted between two side plates (21) and a rotating shaft (621) fixedly connected to the central axis of the driven wheel two (6210). The driven wheel one (24) and the driven wheel two (6210) are also connected by belt drive. A heart-shaped protrusion (623) is fixedly sleeved on the outer side of one end of the rotating shaft (621).

9. The dry-type power transformer coil manufacturing equipment according to claim 8, characterized in that, The wiring assembly (62) also includes an ear seat (622) fixed to the top of the base (1). The top of the ear seat (622) is hinged to a swing bar (624) that is coplanar with the heart-shaped protrusion (623). A straight spring (625) is fixedly connected between the swing bar (624) and the base (1). A limiting groove (628) is provided on one side of the swing bar (624), and a through groove (626) is provided on one side of the bracket (61). An I-shaped square column (627) is slidably connected inside the through groove (626). A round rod (629) that passes through the limiting groove (628) is fixedly connected to one side of the I-shaped square column (627). A wire hole is also provided at the upper end of the swing bar (624).

10. A method for manufacturing dry-type power transformer coils, comprising using the dry-type power transformer coil manufacturing equipment as described in claim 9 to produce dry-type power transformer coils, characterized in that, The specific steps include the following: S1. Threading and installing the winding core: Insert the wire to be wound into one end of the threading tube (7), and after the inserted end passes through the wire processing station, the wire drying station and the intermittent wire feeding station in sequence, pass the wire exit end through the wire hole. At the same time, install the winding core on the bracket (61), and then fix one end of the wire that passes through the wire hole on the winding core. S2, winding: Simultaneously start the reciprocating oscillating feed mechanism (2) and the winding part (6) to work, so that the intermittent feeding part (5) pushes the wire to the winding part (6) in an intermittent manner, and uses the wire assembly (62) in conjunction with the rotation of the winding core to evenly wind the wire on the surface of the winding core. S3. Cutting: After the winding is completed, the wire is cut and a new winding core is placed on the bracket (61) for the next round of automatic winding.

Images