A transformer winding device

Abstract

The present invention discloses a transformer winding device, which relates to the technical field of winding equipment, including a base plate, wherein the base plate is fixedly connected to an organic shell, a reciprocating mechanism and a placement mechanism for fixing a winding mold are arranged inside the shell, and a guide assembly is arranged on the reciprocating mechanism; the guide assembly includes a fixed block, the fixed block is fixedly connected to a connecting plate through an elastic member, a guide wheel for guiding the paper covered wire is rotatably connected to the connecting plate through a first driving mechanism, a plurality of top plates are slidably connected to the guide wheel, and a driving member for driving the top plate to slide is arranged inside the connecting plate. By arranging the guide wheel, the device can drive the paper covered wire to reciprocate and be evenly wound on the surface of the transformer, and the reciprocating motion of the guide wheel can accurately control the arrangement trajectory of the paper covered wire, so that each layer of winding is tight and evenly distributed, thereby ensuring that the magnetic field distribution of the winding coil is more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of winding equipment, and in particular to a transformer winding device. Background Art

[0002] At present, when winding the transformer windings of oil-immersed power transformers above 110kV on the market, paper-covered wire is generally wound on a separate winding mold to form the transformer winding. After the winding is completed, the winding is dried and then compressed. Finally, the winding is assembled and the insulation between the winding and the core and the windings is assembled in place. The winding operation of the oil-immersed power transformer above 110kV is completed.

[0003] When the existing transformer winding device is performing a winding operation on the transformer winding, the winding die is mounted on the driving shaft, the wire is released from the wire pay-off end, and the driving shaft drives the winding die to rotate and wind the paper-covered wire on the winding die;

[0004] During the winding process of the existing transformer winding device, the equipment generates severe vibration due to the operation of the drive component. The vibration can cause the pay-off end or the winding member to loosen, resulting in an unbalanced rotation speed between the drive shaft and the pay-off end, causing the paper-wrapped wire to become loose on the winding mold and unable to fit tightly on the winding mold, thereby causing a decline in winding quality and a decline in the electrical performance of the transformer. Summary of the Invention

[0005] The purpose of the present invention is to propose a transformer winding device in order to solve the problem that the equipment generates severe vibration due to the operation of the drive component, the vibration may cause the wire-paying end or the winding member to loosen, resulting in an unbalanced rotation speed between the drive shaft and the wire-paying end, thereby causing the paper-wrapped wire to become loose on the winding mold and unable to fit tightly on the winding mold.

[0006] To achieve the above-mentioned object, the present invention adopts the following technology: a transformer winding device: comprising a base plate, to which a housing is fixedly connected, a reciprocating mechanism and a placement mechanism for fixing a winding mold are provided inside the housing, and a guide assembly is provided on the reciprocating mechanism;

[0007] The guide assembly includes a fixed block, the fixed block is fixedly connected to a connecting plate via an elastic member, a guide wheel for guiding the paper-covered wire is rotatably connected to the connecting plate via a first driving mechanism, a plurality of top plates are slidably connected to the guide wheel, and a driving member for driving the top plates to slide is provided inside the connecting plate;

[0008] The paper covered wire is guided by the guide wheel and wound on the surface of the winding mold. Then the first driving mechanism drives the guide wheel to rotate, and the guide wheel drives several top plates to rotate synchronously. The top plates rotate around the driving member, so that after the paper covered wire is separated from the top plates, the top plates are squeezed by the driving member and slide toward the outer wall of the guide wheel, so that the top plate and the outer wall of the guide wheel fit together, and contact and squeeze the paper covered wire wound on the surface of the winding mold, so that the paper covered wire and the surface of the winding mold fit more closely.

[0009] As a further description of a transformer winding device of the above technology:

[0010] The elastic member includes a spring telescopic rod fixedly connected to the interior of the fixed block, the telescopic end of the spring telescopic rod is fixedly connected to the interior of the connecting plate, and the fixed end of the spring telescopic rod is fixedly connected to the interior of the fixed block.

[0011] As a further description of a transformer winding device of the above technology:

[0012] The first driving mechanism includes a motor fixedly connected to the inside of the connecting plate, the output end of the motor is fixedly connected to a first gear, the rotating end of the guide wheel is fixedly connected to a second gear, and the second gear and the first gear are meshed with each other.

[0013] As a further description of a transformer winding device of the above technology:

[0014] The driving member includes a rotating rod rotatably connected to the connecting plate, a cam is fixedly connected to the rotating rod, a surface of the cam is provided with a circumferential portion, a side of the circumferential portion is provided with a raised portion, and the diameter of the raised portion is larger than the diameter of the circumferential portion.

[0015] As a further description of a transformer winding device of the above technology:

[0016] One end of the rotating rod is fixedly connected to a third gear, a rack is meshed with the surface of the third gear, the rack is slidably connected to the inside of the connecting plate, a second electric cylinder is provided at one end of the rack, the fixed end of the second electric cylinder is fixedly connected to the inside of the connecting plate, and the telescopic end of the second electric cylinder is fixedly connected to one end of the rack.

[0017] As a further description of a transformer winding device of the above technology:

[0018] A sleeve is fixedly connected to the interior of the guide wheel, the sleeve is slidably connected to the top plate, and a first spring is fixedly connected between the surface of the top plate and the inner wall of the sleeve.

[0019] As a further description of a transformer winding device of the above technology:

[0020] The surface of the cam is slidably connected to one end of the top plate, the upper surface of the top plate, one side of the connecting plate and one side of the guide wheel are all inclined, the reciprocating mechanism includes a slide rail, a slider is slidably connected to the slide rail, a first electric cylinder is provided below the slider, the telescopic end of the first electric cylinder is fixedly connected to the bottom of the slider, and the interior of the slider is fixedly connected to the surface of the fixed block.

[0021] As a further description of a transformer winding device of the above technology:

[0022] The reciprocating mechanism also includes a reciprocating screw rod rotatably connected to the inside of the casing, a movable plate is threadedly connected to the reciprocating screw rod, a positioning rod is slidably connected to the inner wall of the movable plate, the positioning rod is fixedly connected to one side of the casing, the inside of the movable plate is fixedly connected to one side of the slide rail, and the inner wall of the movable plate is fixedly connected to the fixed end of the first electric cylinder.

[0023] As a further description of a transformer winding device of the above technology:

[0024] The placement mechanism includes a driving rod rotatably connected to the inside of the housing, and a clamping plate is threadedly connected to the driving rod, and the winding mold placed on the driving rod is clamped and fixed by the clamping plate.

[0025] As a further description of a transformer winding device of the above technology:

[0026] The outer wall of the housing is rotatably connected to a limit rod, and the height of the limit rod is the same as the horizontal height of the driving rod.

[0027] In summary, due to the use of the above-mentioned technology in a transformer winding device, the beneficial effects of the present invention are:

[0028] 1. By providing a guide wheel, the paper covered wire passes through the internal groove of the guide wheel, the reciprocating screw drives the movable plate to move, and the movable plate drives the guide wheel to reciprocate. The guide wheel can drive the paper covered wire to reciprocate and evenly wind it on the surface of the winding mold. The reciprocating motion of the guide wheel can accurately control the arrangement trajectory of the paper covered wire, so that each layer of winding is tight and evenly distributed, ensuring a more uniform magnetic field distribution of the winding coil, thereby improving the electrical performance of the transformer.

[0029] 2. By providing a top plate, when the paper-covered wire is on the inner groove of the guide wheel, the paper-covered wire is above the top plate, and then the paper-covered wire is wound on the surface of the winding mold. At this time, the guide wheel is driven to rotate, and the guide wheel drives the top plate inside it to rotate synchronously. When the paper-covered wire breaks away from the guide wheel, the top plate moves toward the outside of the guide wheel and fits against the outer wall of the guide wheel, so that the guide wheel drives the top plate to contact the newly wound paper-covered wire, and the guide wheel and the top plate press the newly wound paper-covered wire. Through the guide wheel and the top plate, the paper-covered wire can be wound more tightly on the surface of the winding mold, reducing looseness and gaps between coils.

[0030] 3. By providing a cam, when the reverse wire-retracting operation is required, the cam is driven to rotate, so that the top plate pushes the paper-covered wire to rise in the groove, and the paper-covered wire slides from the inclined surface side of the connecting plate and the guide wheel, and the paper-covered wire can be adjusted to the groove on the lower side of the guide wheel. Then, the first electric cylinder is driven to work, so that the guide wheel drives the paper-covered wire to descend and be pulled, and the tension of the paper-covered wire is controlled to avoid the problem of the wire freely drooping and grounding due to wire retraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shows a schematic diagram of the overall structure according to the present invention;

[0032] Figure 2 It shows a schematic structural diagram of a movable plate according to the present invention;

[0033] Figure 3 It shows a schematic structural diagram of the reciprocating mechanism according to the present invention;

[0034] Figure 4 It shows a schematic structural diagram of a fixing block according to the present invention;

[0035] Figure 5 It shows a schematic structural diagram of the connecting plate and the guide wheel according to the present invention;

[0036] Figure 6 It shows a schematic structural diagram of the connecting plate and the guide wheel according to another perspective of the present invention;

[0037] Figure 7 It shows a cross-sectional view of the structure of the guide wheel according to the present invention;

[0038] Figure 8 It shows a cross-sectional view of the structure of the connecting plate according to the present invention;

[0039] Figure 9 It shows the structural explosion diagram of the connecting plate and the guide wheel according to the present invention;

[0040] Figure 10 It shows an exploded view of the connection plate and guide wheel according to another perspective;

[0041] Figure 11 A schematic diagram of the driving structure of the guide wheel and the rotating rod according to the present invention is shown;

[0042] Figure 12 A partial structural cross-sectional view of a guide wheel according to the present invention is shown;

[0043] Figure 13 It shows a schematic structural diagram of the top plate and the cam according to the present invention;

[0044] Figure 14 A cross-sectional view of the structure of a top plate according to the present invention is shown.

[0045] Legend:

[0046] 1. Bottom plate;

[0047] 2. Casing;

[0048] 3. Reciprocating mechanism; 31. Reciprocating screw; 32. Moving plate; 33. Slide rail; 34. Slider; 35. First electric cylinder; 36. Positioning rod;

[0049] 40. Guide assembly; 41. Fixed block; 411. Spring telescopic rod; 42. Connecting plate; 421. Motor; 422. First gear; 423. Second electric cylinder; 424. Rack; 43. Guide wheel; 431. Top plate; 432. Second gear; 44. Cam; 441. Circumferential portion; 442. Raised portion; 443. Rotating rod; 444. Third gear; 45. Sleeve; 451. First spring;

[0050] 50. Placement mechanism; 51. Driving rod; 52. Clamp;

[0051] 6. Limit rod. DETAILED DESCRIPTION

[0052] The following will be combined with the accompanying drawings to clearly and completely describe the technical aspects of a transformer winding device in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0053] like Figures 1-14 As shown, the present invention provides: a transformer winding device, comprising a base plate 1, to which a housing 2 is fixedly connected, a reciprocating mechanism 3 and a placement mechanism 50 for fixing a winding mold are provided inside the housing 2, and a guide assembly 40 is provided on the reciprocating mechanism 3;

[0054] The guide assembly 40 includes a fixed block 41, which is fixedly connected to a connecting plate 42 via an elastic member. A guide wheel 43 for guiding the paper-covered wire is rotatably connected to the connecting plate 42 via a first driving mechanism. A plurality of top plates 431 are slidably connected to the guide wheel 43. A driving member for driving the top plates 431 to slide is provided inside the connecting plate 42.

[0055] like Figure 3 As shown, the reciprocating mechanism further includes a reciprocating screw 31 rotatably connected to the interior of the housing 2, a movable plate 32 being threadedly connected to the reciprocating screw 31, a positioning rod 36 being slidably connected to the inner wall of the movable plate 32, the positioning rod 36 being fixedly connected to one side of the housing 2, the interior of the movable plate 32 being fixedly connected to one side of the slide rail 33, and the inner wall of the movable plate 32 being fixedly connected to the fixed end of the first electric cylinder 35;

[0056] like Figure 1 As shown, the placement mechanism 50 includes a driving rod 51 rotatably connected to the inside of the housing 2, and a clamping plate 52 is threadedly connected to the driving rod 51, and the winding mold placed on the driving rod 51 is clamped and fixed by the clamping plate 52;

[0057] like Figure 7 、 Figure 13 and Figure 14 As shown, the driving member includes a rotating rod 443 rotatably connected to the connecting plate 42, and a cam 44 is fixedly connected to the rotating rod 443. The surface of the cam 44 is provided with a circumferential portion 441, and a protrusion 442 is provided on one side of the circumferential portion 441. The diameter of the protrusion 442 is larger than the diameter of the circumferential portion 441.

[0058] The paper-covered wire is guided by the guide wheel 43 and wound on the surface of the winding mold. Then the first driving mechanism drives the guide wheel 43 to rotate, and the guide wheel 43 drives several top plates 431 to rotate synchronously. The top plates 431 rotate around the driving member, so that after the paper-covered wire is separated from the top plates 431, the top plates 431 are squeezed by the driving member and slide toward the outer wall of the guide wheel 43, so that the top plates 431 and the outer wall of the guide wheel 43 fit together, and contact and squeeze the paper-covered wire wound on the surface of the winding mold, so that the paper-covered wire and the surface of the winding mold fit more closely.

[0059] Specifically, during the winding process, existing transformer winding devices generate severe vibrations due to the operation of the drive assembly. This vibration can cause the pay-off end or winding member to loosen, resulting in an unbalanced rotational speed between the drive shaft and the pay-off end. This causes the paper-wrapped wire to become loose on the winding die and fail to fit tightly onto the winding die, resulting in reduced winding quality and reduced transformer electrical performance.

[0060] The reciprocating screw rod 31 and the driving rod 51 in this device are connected to the driving assembly inside the casing 2. The driving assembly is a prior art. The driving assembly can drive the reciprocating screw rod 31 and the driving rod 51 to rotate on the outer wall of the casing 2. In order to solve the above-mentioned problems, the use of the present invention is as follows: the winding mold is placed on the driving rod 51, and the clamping plate 52 is rotated to fix the winding mold on the driving rod 51. Then, the paper-covered wire on the pay-off end passes through the internal groove of the guide wheel 43 and is wound around the surface of the winding mold. Then, the winding operation can be carried out. The driving assembly inside the housing 2 works, and then drives the reciprocating screw rod 31 and the driving rod 51 to rotate. The driving rod 51 rotates and drives the winding mold to rotate, so that the paper-covered wire is wound on the surface of the winding mold. At the same time, the reciprocating screw rod 31 drives the movable plate 32 to slide back and forth on the positioning rod 36. The movable plate 32 drives the connecting plate 42 to reciprocate synchronously. The connecting plate 42 drives the guide wheel 43 to reciprocate. The guide wheel 43 drives the paper-covered wire inside its groove to reciprocate and wind around the surface of the winding mold, so that the paper-covered wire is evenly wound on the surface of the winding mold.

[0061] When the paper-covered wire is in the inner groove of the guide wheel 43, the first driving component inside the connecting plate 42 drives the guide wheel 43 to rotate synchronously, and the guide wheel 43 drives several internal top plates 431 to rotate synchronously, and the multiple top plates 431 rotate around the cam 44. Initially, when the top plate 431 rotates to the circumferential portion 441 of the cam 44, the top plate 431 is received in the groove of the guide wheel 43. At this time, the paper-covered wire is in the inner groove of the guide wheel 43 and contacts the upper surface of the top plate 431. After the paper-covered wire leaves the top plate 431, one end of the top plate 431 rotates to the protrusion 442 of the cam 44. The top plate 431 is squeezed by the protrusion 442 of the cam 44, causing the top plate 431 to slide toward the outside of the guide wheel 43, and the top plate 431 fits against the outer wall of the guide wheel 43. Then, the guide wheel 43 drives the top plate 431 to rotate synchronously, and contacts and squeezes the paper-covered wire wound on the surface of the winding mold, so that the paper-covered wire is tightly wound on the surface of the winding mold.

[0062] By providing a guide wheel 43, this device can drive the paper-covered wire to reciprocate and evenly wind it on the surface of the winding mold. The reciprocating motion of the guide wheel 43 can accurately control the arrangement trajectory of the paper-covered wire, so that each layer of winding is tight and evenly distributed, ensuring that the magnetic field distribution of the winding coil is more uniform, thereby improving the electrical performance of the transformer. At the same time, the guide wheel 43 drives the top plate 431 to rotate, so that the top plate 431 moves and fits the outer wall of the guide wheel 43, so that the guide wheel 43 can squeeze the paper-covered wire, so that the paper-covered wire can be evenly and tightly wound on the winding mold, effectively preventing the paper-covered wire from loosening during the winding process.

[0063] like Figure 4As shown, the elastic member includes a spring telescopic rod 411 fixedly connected to the inside of the fixed block 41, the telescopic end of the spring telescopic rod 411 is fixedly connected to the inside of the connecting plate 42, and the fixed end of the spring telescopic rod 411 is fixedly connected to the inside of the fixed block 41.

[0064] Specifically, when the number of layers of paper-wrapped wire on the surface of the winding mold increases, the diameter of the winding mold changes. Therefore, when the guide wheel 43 moves on the surface of the paper-wrapped wire, the paper-wrapped wire squeezes the guide wheel 43, so that the guide wheel 43 drives the connecting plate 42 to move synchronously, and the connecting plate 42 squeezes the spring telescopic rod 411 inside the fixed block 41, so that the guide wheel 43 can automatically adjust its position according to the change in the number of layers of paper-wrapped wire to squeeze the paper-wrapped wire and the surface of the winding mold.

[0065] like Figures 8 to 11 As shown, the first driving mechanism includes a motor 421 fixedly connected to the inside of the connecting plate 42, the output end of the motor 421 is fixedly connected to the first gear 422, the rotating end of the guide wheel 43 is fixedly connected to the second gear 432, and the second gear 432 and the first gear 422 are engaged with each other.

[0066] When the guide wheel 43 needs to be driven to rotate, the motor 421 can be turned on, and the motor 421 drives the first gear 422 to rotate. The first gear 422 and the second gear 432 are engaged, so that the second gear 432 can drive the guide wheel 43 synchronously, and the rotation of the guide wheel 43 can drive the top plate 431 to rotate synchronously.

[0067] like Figure 7 and Figure 14 As shown, a sleeve 45 is fixedly connected to the interior of the guide wheel 43 , the sleeve 45 is slidably connected to the top plate 431 , and a first spring 451 is fixedly connected between the surface of the top plate 431 and the inner wall of the sleeve 45 .

[0068] Specifically, when the top plate 431 is squeezed by the raised portion 442 of the cam 44, the top plate 431 slides inside the sleeve 45 and squeezes the first spring 451. When the top plate 431 moves to the circumferential portion 441 of the cam 44, the first spring 451 drives the top plate 431 to reset, so that one end of the top plate 431 is attached to the circumferential portion 441 of the cam 44.

[0069] like Figures 8 to 11As shown, the outer wall of the casing 2 is rotatably connected to the limit rod 6, the height of the limit rod 6 is the same as the horizontal height of the driving rod 51, and a second electric cylinder 423 is provided at one end of the rack 424, the fixed end of the second electric cylinder 423 is fixedly connected to the inside of the connecting plate 42, the telescopic end of the second electric cylinder 423 is fixedly connected to one end of the rack 424, the surface of the cam 44 is slidably connected to one end of the top plate 431, and the upper surface of the top plate 431, one side of the connecting plate 42 and one side of the guide wheel 43 are all inclined.

[0070] like Figure 3 As shown, the reciprocating mechanism 3 includes a slide rail 33, a slider 34 is slidably connected to the slide rail 33, a first electric cylinder 35 is provided below the slider 34, the telescopic end of the first electric cylinder 35 is fixedly connected to the bottom of the slider 34, and the interior of the slider 34 is fixedly connected to the surface of the fixed block 41.

[0071] Specifically, during the winding process of the winding mold, when the winding speed is fast and the winding is too tight, too loose or irregular, the paper-wrapped wire needs to be unwound and rewound. When the winding device is reversed and unwinding, the tension between the driving rod 51 and the wire-releasing end needs to be adjusted to prevent the paper-wrapped wire from freely sagging and contacting the ground, causing damage to the surface of the paper-wrapped wire. When the above-mentioned guide wheel 43 is used to adjust the tension, the staff needs to manually place the paper-wrapped wire from above the guide wheel 43 to below the guide wheel 43, and limit the paper-wrapped wire through the groove of the guide wheel 43. The push rod will push the paper-wrapped wire into the inside of the groove, causing the paper-wrapped wire to fall off.

[0072] When the cam 44 is in the working state, the first gear 424 is rotated and the second gear 424 is rotated, so that the cam 44 rotates to 180 degrees. At this time, the circumference 441 of the cam 44 faces downward, and the initial position faces upward. When the cam 44 rotates, it pushes the top plate 431 to rotate, and the top plate 431 slides toward the outside of the guide wheel 43, so that the top plate 431 pushes the paper covered wire to slide toward the outside of the guide wheel 43. Because the paper covered wire is long when it is paid out, the paper covered wire slides on the inclined surface of the top plate 431, and then slides to the inclined surface of the connecting plate 42 and the guide wheel 43, so that the paper covered wire automatically falls under the guide wheel 43. Then the user opens the first gear 424. The electric cylinder 35 drives the slider 34 to slide on the slide rail 33, and the slider 34 drives the fixed block 41 to slide downward, so that the guide wheel 43 slides downward, and then the paper covered wire is placed in the groove of the guide wheel 43. One end of the paper covered wire is above the limit rod 6 and the other end is on the winding mold. The middle part is driven downward by the guide wheel 43, so that the guide wheel 43 moves downward to control the tension of the paper covered wire. When the wire is unwound, the guide wheel 43 drives the paper covered wire to reciprocate for unwinding and winding. Then, when the guide wheel 43 drives the push rod to rotate, the protrusion 442 of the cam 44 is facing upward, so that the push rod will not contact the paper covered wire below and push it out of the groove. After the wire unwinding is completed, the driving cam 44 is reset. At this time, the push plate 431 pushes the paper covered wire out of the groove of the guide wheel 43, and then drives the reciprocating screw rod 31 to drive the guide wheel 43 to retreat, and drives the first electric cylinder 35 to adjust the position of the guide wheel 43 so that the paper covered wire is in the groove above the guide wheel 43, and the winding operation can continue.

[0073] This device drives the guide wheel 43 to slide up and down through the first electric cylinder 35, thereby adjusting the tension of the paper-covered wire when it is unwound, preventing the paper-covered wire from freely sagging and contacting the ground, causing damage to the surface of the paper-covered wire. At the same time, the paper-covered wire can be automatically adjusted to below the wire pulley, reducing the workload of manual operation and improving work efficiency.

[0074] Working principle: First, prepare the winding mold of the oil-immersed power transformer, then place the winding mold on the driving rod 51, and rotate the clamping plate 52 to fix the winding mold on the driving rod 51, then pass the paper covered wire on the wire-releasing end through the internal groove of the guide wheel 43, and wind it around the surface of the winding mold, and then the winding operation can be performed, the driving assembly inside the casing 2 works, and then drives the reciprocating screw rod 31 and the driving rod 51 to rotate, the driving rod 51 rotates and drives the winding mold to rotate, so that the paper covered wire is wound around the surface of the winding mold, and at the same time the reciprocating screw rod 31 drives the movable plate 32 to slide back and forth on the positioning rod 36, the movable plate 32 drives the connecting plate 42 to reciprocate synchronously, the connecting plate 42 drives the guide wheel 43 to reciprocate, and the guide wheel 43 drives the paper covered wire inside its groove to reciprocate around the surface of the winding mold, so that the paper covered wire is evenly wound around the surface of the winding mold;

[0075] When the paper-covered wire is in the inner groove of the guide wheel 43, the motor 421 is turned on, and the motor 421 drives the first gear 422 to rotate. The first gear 422 is engaged with the second gear 432, so that the second gear 432 can drive the guide wheel 43 synchronously, and the guide wheel 43 drives the internal multiple top plates 431 to rotate synchronously. The multiple top plates 431 rotate around the cam 44. In the initial state, when the top plates 431 rotate to the circumference 441 of the cam 44, the top plates 431 are received in the groove of the guide wheel 43. At this time, the paper-covered wire is in the guide wheel 43. The top plate 431 is in the inner groove and contacts the upper surface of the top plate 431. After the paper-covered wire is separated from the top plate 431, one end of the top plate 431 rotates to the protrusion 442 of the cam 44. The top plate 431 is squeezed by the protrusion 442 of the cam 44, causing the top plate 431 to slide toward the outside of the guide wheel 43, and the top plate 431 and the outer wall of the guide wheel 43 are in contact. Then, the guide wheel 43 drives the top plate 431 to rotate synchronously, and contacts and squeezes the paper-covered wire wound on the surface of the winding mold, so that the paper-covered wire is tightly wound on the surface of the winding mold.

[0076] When the number of layers of paper-covered wire on the surface of the winding mold increases, the diameter of the winding mold changes. Therefore, when the guide wheel 43 moves on the surface of the paper-covered wire, the paper-covered wire squeezes the guide wheel 43, causing the guide wheel 43 to drive the connecting plate 42 to move synchronously. The connecting plate 42 squeezes the spring telescopic rod 411 inside the fixed block 41, so that the guide wheel 43 can automatically adjust its position according to the change in the number of layers of paper-covered wire to squeeze the paper-covered wire and the surface of the winding mold.

[0077] When the paper covered wire needs to be unwound, the guide wheel 43 is kept fixed, and the second electric cylinder 423 can be driven to work. The second electric cylinder 423 drives the rack 424 to slide axially toward the bottom side of the connecting plate 42, so that the rack 424 and the third gear 444 are meshed. The third gear 444 drives the rotating rod 443 to rotate, and the rotating rod 443 drives the cam 44 to rotate, so that the cam 44 rotates to 180 degrees. At this time, the circumference 441 of the cam 44 faces downward, and the initial position faces upward. When the cam 44 rotates, it also drives the top plate 431 to rotate, and the top plate 431 slides toward the outside of the guide wheel 43, so that the top plate 431 pushes the paper covered wire to slide toward the outside of the guide wheel 43. Because the paper covered wire is long when it is paid off, the paper covered wire slides on the inclined surface of the top plate 431, and then slides to the inclined surface of the connecting plate 42 and the guide wheel 43, so that the paper covered wire automatically falls under the guide wheel 43. Then the user opens the first electric cylinder 35, and the first electric cylinder 35 The guide wheel 43 is driven by the guide roller 43 to adjust the position of the guide wheel 43 so that the paper-wrapped wire is in the groove above the guide wheel 43, and the winding operation can be continued.

[0078] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to the transformer winding device and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer winding device, comprising a base plate (1), a housing (2) fixedly connected to the base plate (1), a reciprocating mechanism (3) and a placement mechanism (50) for fixing a winding die being provided inside the housing (2), characterized in that: The reciprocating mechanism (3) is provided with a guide assembly (40); The guide assembly (40) includes a fixed block (41), the fixed block (41) is fixedly connected to a connecting plate (42) via an elastic member, a guide wheel (43) for guiding the paper-covered wire is rotatably connected inside the connecting plate (42) via a first driving mechanism, a plurality of top plates (431) are slidably connected inside the guide wheel (43), and a driving member for driving the top plates (431) to slide is provided inside the connecting plate (42); The driving member comprises a rotating rod (443) rotatably connected to the connecting plate (42); a cam (44) is fixedly connected to the rotating rod (443); a surface of the cam (44) is provided with a circumferential portion (441); a convex portion (442) is provided on one side of the circumferential portion (441); and a diameter of the convex portion (442) is larger than a diameter of the circumferential portion (441); The paper-covered wire is guided by the guide wheel (43) and wound on the surface of the winding mold. Then, the first driving mechanism drives the guide wheel (43) to rotate, and the guide wheel (43) drives a plurality of top plates (431) to rotate synchronously. The top plates (431) rotate around the driving member, so that after the paper-covered wire is separated from the top plates (431), the top plates (431) are squeezed by the driving member and slide toward the outer wall of the guide wheel (43), so that the top plates (431) and the outer wall of the guide wheel (43) fit together, and contact and squeeze the paper-covered wire wound on the surface of the winding mold, so that the paper-covered wire and the surface of the winding mold fit more tightly.

2. A transformer winding device according to claim 1, characterized in that: The elastic member comprises a spring telescopic rod (411) fixedly connected to the interior of the fixed block (41), the telescopic end of the spring telescopic rod (411) being fixedly connected to the interior of the connecting plate (42), and the fixed end of the spring telescopic rod (411) being fixedly connected to the interior of the fixed block (41).

3. A transformer winding device according to claim 2, characterized in that: The first driving mechanism comprises a motor (421) fixedly connected to the interior of the connecting plate (42); an output end of the motor (421) is fixedly connected to a first gear (422); a rotating end of the guide wheel (43) is fixedly connected to a second gear (432); the second gear (432) and the first gear (422) are meshed with each other.

4. A transformer winding device according to claim 3, characterized in that: One end of the rotating rod (443) is fixedly connected to a third gear (444), a rack (424) is meshedly provided on the surface of the third gear (444), the rack (424) is slidably connected to the inside of the connecting plate (42), a second electric cylinder (423) is provided at one end of the rack (424), a fixed end of the second electric cylinder (423) is fixedly connected to the inside of the connecting plate (42), and a telescopic end of the second electric cylinder (423) is fixedly connected to one end of the rack (424).

5. A transformer winding device according to claim 4, characterized in that: A sleeve (45) is fixedly connected to the interior of the guide wheel (43), the sleeve (45) and the top plate (431) are slidably connected, and a first spring (451) is fixedly connected between the surface of the top plate (431) and the inner wall of the sleeve (45).

6. A transformer winding device according to claim 5, characterized in that: The surface of the cam (44) is slidably connected to one end of the top plate (431); the upper surface of the top plate (431), one side of the connecting plate (42), and one side of the guide wheel (43) are all inclined; the reciprocating mechanism (3) includes a slide rail (33); a slider (34) is slidably connected to the slide rail (33); a first electric cylinder (35) is provided below the slider (34); a telescopic end of the first electric cylinder (35) is fixedly connected to the bottom of the slider (34); and the interior of the slider (34) is fixedly connected to the surface of the fixed block (41).

7. A transformer winding device according to claim 6, characterized in that: The reciprocating mechanism (3) further comprises a reciprocating screw (31) rotatably connected to the interior of the housing (2); a movable plate (32) is threadedly connected to the reciprocating screw (31); a positioning rod (36) is slidably connected to the inner wall of the movable plate (32); the positioning rod (36) is fixedly connected to one side of the housing (2); the interior of the movable plate (32) is fixedly connected to one side of the slide rail (33); and the inner wall of the movable plate (32) is fixedly connected to the fixed end of the first electric cylinder (35).

8. A transformer winding device according to claim 7, characterized in that: The placement mechanism (50) includes a driving rod (51) rotatably connected to the inside of the housing (2), and a clamping plate (52) is threadedly connected to the driving rod (51), and the winding mold placed on the driving rod (51) is clamped and fixed by the clamping plate (52).

9. The transformer winding device according to claim 8, characterized in that: The outer wall of the housing (2) is rotatably connected to a limit rod (6), and the height of the limit rod (6) is the same as the horizontal height of the driving rod (51).

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