A transformer core winding apparatus

Abstract

This utility model relates to the field of transformer core technology, specifically a transformer core winding device. It includes a base plate with connecting plates fixedly connected to both ends of its top surface, and a fixing mechanism located between the two connecting plates. In this utility model, the core is fitted onto two slide rails. An abutment ring presses adjacent rings, and the distance between the two slide rails is adjusted by a support arm, thus fixing the two slide rails. A servo motor is started, driving the slide rod and core to rotate via a sleeve. Copper wire from the coil passes through the space between two rotating rollers, through a wire-passing hole, and inside the slide cylinder. The copper wire is then fixed to the core. A power motor is started, driving adjacent rotating rollers to pull out the copper wire, facilitating winding of the core. A drive motor is started, adjusting the position of the moving frame and slide cylinder via an adjusting screw. The slide cylinder limits the winding position of the copper wire, thereby adjusting the pitch of the coils on the core. Furthermore, the copper wire is shaped by the pressure applied by the slide cylinder, resulting in a tighter fit with the core.

Description

Technical Field

[0001] This utility model relates to the field of transformer core technology, specifically a transformer core winding device. Background Technology

[0002] During the production of a transformer, copper wire needs to be wound around the iron core. Before winding the copper wire, double-sided epoxy paper needs to be wrapped around the iron core as an insulation layer to fix the ends of the copper wire. Then, the iron core is driven to rotate, and the copper wire is tightly wound around the rotating iron core in a spiral manner. When one turn is completed, another layer of insulation paper needs to be wrapped over it, and then a second layer of coil is wound. This process of wrapping multiple layers of insulation paper and multiple layers of coils is repeated to form the core unit of the transformer. However, copper wire and other metal conductors are often wound on a coil, which serves as a container for the conductors. When releasing the wires from the coil, they may naturally bend. When winding them onto the iron core, existing equipment usually rotates the iron core and then controls the release position to make the released copper wire wind onto the iron core. The copper wire relies on the friction between itself and the iron core insulation paper, as well as the tension during winding, to adhere to the iron core surface and be shaped for fixation. However, when covering and winding with insulation paper, the copper wire may experience elastic rebound due to its own elasticity, residual stress, etc., causing pitch changes, which is quite inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a transformer core winding device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A transformer core winding device, comprising:

[0006] The system comprises a base plate, a fixing mechanism for securing the iron core, a U-shaped plate, and a limiting mechanism for restricting the movement path of the copper wire. Connecting plates are fixedly connected to both ends of the top surface of the base plate. The fixing mechanism is located between the two connecting plates. The bottom ends of the two arms of the U-shaped plate are fixedly connected to the top ends of the two connecting plates. Two guide rails are fixedly connected to the top surface of the U-shaped plate. The limiting mechanism is slidably engaged with the U-shaped plate. The limiting mechanism includes a movable frame, which is slidably engaged with the two guide rails. A guide block is fixedly connected to the movable frame. A groove is formed on the top surface of the U-shaped plate, and the guide block is slidably engaged inside the groove. A wire-passing hole is formed on the top surface of the guide block, and a cylinder is fixedly connected to the bottom surface of the guide block. A sliding sleeve is slidably fitted inside the cylinder.

[0007] Furthermore, an adjusting screw is rotatably connected between the two ends of a guide rail, a threaded hole is provided on the movable frame and the threaded hole is screwed into the adjusting screw, a drive box is fixedly connected to one end of the U-shaped plate, and a drive motor is provided inside the drive box, and the motor shaft of the drive motor is fixedly connected to one end of the adjusting screw.

[0008] Furthermore, the fixing mechanism includes:

[0009] The system includes a motor housing, a sliding rod, two slide rails for fixing the iron core, and two abutment rings. The motor housing is fixedly connected to one side of a connecting plate. A servo motor is housed inside the motor housing, and the motor shaft of the servo motor passes through one connecting plate and is fixedly connected to a sleeve. A sliding hole is opened on one side of the other connecting plate, and the sliding rod is slidably fitted into the sliding hole. Circular through holes are opened at one end of the outer wall of the sliding rod and the outer wall of the sleeve, and a bearing is installed at the other end of the outer wall of the sliding rod. The outer wall of the sliding rod is fixedly fitted into the inner ring of the bearing. The other connecting plate is fixedly connected to the inner ring of the bearing. The slide rod is fixedly connected with a retaining ring, and the outer ring of the bearing is movably engaged inside the retaining ring. Four collars are slidably sleeved on the outer wall of the slide rod. Two sliders are slidably engaged inside each of the two slide rails. Each slider has a support arm rotatably connected to both ends. One end of each of the four support arms on the same slide rail is rotatably connected to the outer wall of the four collars. A rubber pad is fixedly connected to one side of each of the two slide rails. The two abutment rings are slidably sleeved inside the outer wall of the slide rod. An internally threaded cylinder is fixedly connected to the outer wall of each abutment ring. An abutment screw is screwed into the interior of each internally threaded cylinder.

[0010] Furthermore, the top surface of the mobile frame is fixedly connected to two fixed plates, and each of the two fixed plates has a slot on one side. Two rotating rollers are arranged between the two fixed plates, and each of the two rotating rollers has a locking block rotatably sleeved at both ends. The two locking blocks on any rotating roller are respectively slidably locked into the two slots.

[0011] Furthermore, one side of a fixed plate is fixedly connected to two support plates, and a bidirectional screw is rotatably connected between the two support plates. A locking hole is provided on the locking block at one end of any rotating roller, and both locking holes are screwed into the bidirectional screw.

[0012] Furthermore, a rail is fixedly connected to one side of another fixed plate, and two power boxes are slidably engaged inside the rail. Each of the two power boxes is equipped with a power motor, and the motor shafts of the two power motors are fixedly connected to the other end of the two rotating rollers respectively.

[0013] Furthermore, each roller has multiple protruding strips fixedly connected to its outer side wall.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By fitting the iron core onto two slide rails, and then moving two abutment rings to press the adjacent collar, the collars adjust the distance between the two slide rails via the support arm, thus fixing the two slide rails in place. Then, a servo motor is activated, driving the slide rod and iron core to rotate via a sleeve. The copper wire on the reel passes between the two rotating rollers and is released using an automatic wire feeding device, passing through the wire-passing hole and inside the slide cylinder. The copper wire is then fixed to the iron core. Finally, a power motor is activated, driving the adjacent rotating rollers to rotate, causing the two rollers to pull the copper wire upwards on the moving frame. This allows the copper wire to be pulled vertically, reducing bending and facilitating winding around the iron core. The bottom of the slide cylinder abuts against the surface of the iron core, limiting the winding position of the copper wire. In conjunction with starting the drive motor, the position of the moving frame and the slide cylinder is adjusted by adjusting the screw, thereby adjusting the pitch of the coil on the iron core. Furthermore, when the copper wire is wound around the iron core, the pressure applied by the slide cylinder further shapes the copper wire, making it adhere more tightly to the iron core. This reduces pitch changes when the winding stops, making it easier for users to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the limiting mechanism in this utility model;

[0018] Figure 3 This is an exploded view of the limiting mechanism structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing mechanism in this utility model.

[0020] In the diagram: 100, base plate; 110, connecting plate; 111, retaining ring; 200, fixing mechanism; 210, motor box; 211, sleeve; 220, slide rod; 221, collar; 230, slide rail; 231, slider; 232, support arm; 233, rubber pad; 240, abutment ring; 300, U-shaped plate; 310, guide rail; 311, adjusting screw; 320, drive box; 400, limiting mechanism; 410, moving frame; 411, guide block; 420, cylinder; 421, slide cylinder; 430, fixing plate; 431, bidirectional screw; 440, rotating roller; 441, protruding strip; 450, retaining rail; 451, power box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 In this embodiment of the utility model, a transformer core winding device includes:

[0023] The base plate 100 comprises a fixing mechanism 200 for securing the iron core, a U-shaped plate 300, and a limiting mechanism 400 for restricting the movement path of the copper wire. Connecting plates 110 are fixedly connected to both ends of the top surface of the base plate 100. The fixing mechanism 200 is located between the two connecting plates 110. The bottom ends of the two arms of the U-shaped plate 300 are fixedly connected to the top ends of the two connecting plates 110. Two guide rails 310 are fixedly connected to the top surface of the U-shaped plate 300. The limiting mechanism 400... The limiting mechanism 400 includes a movable frame 410 that is slidably engaged with the U-shaped plate 300 and slidably engaged with two guide rails 310. The movable frame 410 is fixedly connected with a guide block 411. The top surface of the U-shaped plate 300 has a sliding groove, and the guide block 411 is slidably engaged inside the sliding groove. The top surface of the guide block 411 has a wire hole, and the bottom surface of the guide block 411 is fixedly connected with a cylinder 420. A sliding cylinder 421 is slidably sleeved inside the cylinder 420.

[0024] Specifically, by fixing the iron core to the fixing mechanism 200, the copper wire on the reel is released using an automatic wire feeding device. The copper wire passes through the wire-passing hole on the guide block 411 and inside the slide cylinder 421 before being fixed to the iron core. Then, the fixing mechanism 200 is activated to rotate the iron core, causing it to automatically wind the copper wire around itself. At this time, the position of the guide block 411 and the slide cylinder 421 can be adjusted by moving the moving frame 410, thus limiting the position of the copper wire wound on the iron core. The slide cylinder 421 can slide freely inside the cylinder 420. The slide cylinder 421 is made of heavy materials such as steel and has a relatively low self-weight. The weight of the slide cylinder 421 ensures that its bottom end remains pressed against the copper wire wound on the iron core. When the iron core is rotated by the fixing mechanism 200 to wind the copper wire, the winding position of the copper wire on the iron core can be adjusted more precisely by moving the moving frame 410 and the slide cylinder 421, thereby adjusting the pitch of the copper wire on the iron core more precisely. The bottom end of the slide cylinder 421 is rounded. When the copper wire is wound on the iron core, the copper wire is subjected to pressure by the heavier slide cylinder 421 when it passes the bottom end of the slide cylinder 421, thereby shaping the copper wire and making the copper wire adhere more tightly to the iron core. The automatic wire feeding device is existing technology and will not be described in detail here.

[0025] Example 1

[0026] like Figure 2-3 As shown, in this embodiment, an adjusting screw 311 is rotatably connected between the two ends of a guide rail 310. A threaded hole is provided on the movable frame 410, and the threaded hole is screwed into the adjusting screw 311. A drive box 320 is fixedly connected to one end of the U-shaped plate 300, and a drive motor is provided inside the drive box 320. The motor shaft of the drive motor is fixedly connected to one end of the adjusting screw 311.

[0027] In this embodiment, the adjustment screw 311 can be rotated by starting the drive motor, so that the adjustment screw 311 can drive the moving frame 410 to move on the two guide rails 310 through the threaded hole. The drive motor can be controlled by the controller, which makes it convenient for users to use.

[0028] like Figure 1 and Figure 4 As shown, in this embodiment, the fixing mechanism 200 includes:

[0029] The system includes a motor housing 210, a slide rod 220, two slide rails 230 for fixing the iron core, and two abutment rings 240. The motor housing 210 is fixedly connected to one side of a connecting plate 110. A servo motor is installed inside the motor housing 210, and the motor shaft of the servo motor passes through one connecting plate 110 and is fixedly connected to a sleeve 211. A sliding hole is opened on one side of another connecting plate 110, and the slide rod 220 is slidably sleeved inside the sliding hole. One end of the outer wall of the slide rod 220 and the outer wall of the sleeve 211 both have circular through holes, and a bearing is installed at the other end of the outer wall of the slide rod 220. The outer wall of the slide rod 220 is fixedly sleeved with the inner ring of the bearing. The other side of the connecting plate 110 is fixed. A retaining ring 111 is connected, and the outer ring of the bearing is movably engaged inside the retaining ring 111. Four collars 221 are slidably sleeved on the outer wall of the slide rod 220. Two sliders 231 are slidably engaged inside the two slide rails 230. Support arms 232 are rotatably connected to both ends of any slider 231. One end of the four support arms 232 located on the same slide rail 230 is rotatably connected to the outer wall of the four collars 221 respectively. Rubber pads 233 are fixedly connected to one side of each of the two slide rails 230. The inner walls of the two abutment rings 240 are slidably sleeved on the outer wall of the slide rod 220. An internal threaded cylinder is fixedly connected to the outer wall of any abutment ring 240. An abutment screw is screwed into the inner wall of any internal threaded cylinder.

[0030] In specific implementation, the support arms 232 on the two parallel sliders 231 located inside the two slide rails 230 form a rhombus with the connected collars 221. By sliding the positions of the two collars 221, the rhombus formed by the support arms 232 and the collars 221 can be changed to alter the distance between the two adjacent sliders 231, thereby adjusting the distance between the two slide rails 230. The two abutment rings 240 are located at both ends of either slide rail 230. In use, the slide rod 220 slides away from the sleeve 211, and then the iron core is fitted onto the two slide rails 230. On the 30, the two abutment rings 240 slide towards each other, causing the two collars 221 in the middle to come into contact. Then, the abutment rings 240 continue to move, contacting the two collars 221 at both ends, moving them towards each other by an equal distance. This causes the two collars 221 to move away from each other via the support arm 232, causing the two slide rails 230 to contact the inner wall of the iron core for fixation. Then, the contact screw is screwed into the internal threaded cylinder to contact the slide rod 220, thereby fixing the position of the two abutment rings 240. Finally, the slide rod 220 is slid so that one end of it... Insert sleeve 211, and then insert pin into the circular through hole on sleeve 211 and slide rod 220 to fix slide rod 220. At this time, the outer ring of the bearing can be inserted into the inside of retaining ring 111. Multiple protrusions are fixedly connected to the outer wall of the outer ring of the bearing, and multiple grooves are opened on the inner wall of retaining ring 111. The protrusions slide and engage with the inside of adjacent grooves. A protrusion is fixedly connected to the inner wall of any sleeve 221, and a guide groove is opened on the outer wall of slide rod 220. The protrusion slides and engages with the inside of the guide groove. When the servo motor is started, it can pass through the sleeve. 211 drives the slide rod 220 to rotate, thereby causing the iron core to rotate and wrap the copper wire around its outer wall. This makes it easier for the user to fix the iron core and rotate it to wrap the copper wire. The rubber pad 233 can increase the friction between the slide rail 230 and the inner wall of the iron core, and improve the fixing effect of the slide rail 230 on the iron core. The bearing can make the slide rod 220 rotate more smoothly. When the slide rail 230 and the iron core are in close contact, the slider 231 abuts against the inner wall of the slide rail 230, so that the slider 231 is not easy to slide inside the slide rail 230.

[0031] Example 2

[0032] Based on Embodiment 1, by setting two rotating rollers 440 to pull the copper wire, the copper wire inside the slide 421 can be kept vertical, which facilitates the winding of the iron core.

[0033] like Figure 2-3As shown, in this embodiment, two fixed plates 430 are fixedly connected to the top surface of the movable frame 410, and a slot is provided on one side of each of the two fixed plates 430. Two rotating rollers 440 are arranged between the two fixed plates 430, and a locking block is rotatably sleeved at both ends of each of the two rotating rollers 440. The two locking blocks on any rotating roller 440 are respectively slidably locked into the two slots. Two support plates are fixedly connected to one side of one fixed plate 430, and a bidirectional screw 431 is rotatably connected between the two support plates. A screw hole is provided on the locking block at one end of each rotating roller 440, and both screw holes are screwed into the bidirectional screw 431. A rail 450 is fixedly connected to one side of the other fixed plate 430, and two power boxes 451 are slidably locked inside the rail 450. A power motor is provided inside each of the two power boxes 451, and the motor shafts of the two power motors are respectively fixedly connected to the other end of the two rotating rollers 440. Multiple protrusions 441 are fixedly connected to the outer wall of each rotating roller 440.

[0034] In practice, when the copper wire passes through the threading hole, it can be simultaneously passed between the two rotating rollers 440. The distance between the two rotating rollers 440 can be adjusted by rotating the bidirectional screw 431. The bidirectional screw 431 is a screw with both positive and negative threads. When it rotates, it can drive the two rotating rollers 440 to move towards or away from each other, so that the two rotating rollers 440 clamp the copper wire. Then, the two power motors are started to drive the two rotating rollers 440 to rotate, so that the two rotating rollers 440 pull the copper wire upwards towards the moving frame 410. This keeps the copper wire inside the slide cylinder 421 vertical after being pulled, which is convenient for the iron core to wind. The ribs 441 on the two rotating rollers 440 are staggered, so that the copper wire between the two rotating rollers 441 can be bent by the ribs 441, which improves the clamping effect of the rotating rollers 440 on the copper wire, thus making it easier for the rotating rollers 440 to pull the copper wire inside the slide cylinder 421.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A transformer core winding device, characterized in that, include: The bottom plate (100) has connecting plates (110) fixedly connected to both ends of the top surface; A fixing mechanism (200) is located between the two connecting plates (110); The bottom ends of the two arms of the U-shaped plate (300) are fixedly connected to the top of the two connecting plates (110), and the top surface of the U-shaped plate (300) is fixedly connected to two guide rails (310). A limiting mechanism (400) is slidably engaged with the U-shaped plate (300). The limiting mechanism (400) includes a movable frame (410), which is slidably engaged with two guide rails (310). A guide block (411) is fixedly connected to the movable frame (410). A sliding groove is provided on the top surface of the U-shaped plate (300), and the guide block (411) is slidably engaged inside the sliding groove. A wire hole is provided on the top surface of the guide block (411), and a cylinder (420) is fixedly connected to the bottom surface of the guide block (411). A sliding cylinder (421) is slidably sleeved inside the cylinder (420).

2. The transformer core winding device according to claim 1, characterized in that, An adjusting screw (311) is rotatably connected between the two ends of a guide rail (310). The movable frame (410) has a threaded hole that is screwed into the adjusting screw (311). A drive box (320) is fixedly connected to one end of the U-shaped plate (300), and a drive motor is installed inside the drive box (320). The motor shaft of the drive motor is fixedly connected to one end of the adjusting screw (311).

3. The transformer core winding device according to claim 1 or 2, characterized in that, The top surface of the movable frame (410) is fixedly connected to two fixed plates (430), and each of the two fixed plates (430) has a slot on one side. Two rotating rollers (440) are arranged between the two fixed plates (430), and each of the two rotating rollers (440) has a locking block rotatably sleeved at both ends. The two locking blocks on any rotating roller (440) are respectively slidably locked into the two slots.

4. The transformer core winding device according to claim 3, characterized in that, Two support plates are fixedly connected to one side of a fixed plate (430), and a bidirectional screw (431) is rotatably connected between the two support plates. A locking hole is provided on the locking block at one end of any rotating roller (440), and both locking holes are screwed into the bidirectional screw (431).

5. The transformer core winding device according to claim 4, characterized in that, Another fixed plate (430) is fixedly connected to a rail (450) on one side, and two power boxes (451) are slidably engaged inside the rail (450). Both power boxes (451) are equipped with power motors, and the motor shafts of the two power motors are fixedly connected to the other end of the two rotating rollers (440).

6. The transformer core winding device according to claim 3, characterized in that, Each roller (440) has multiple protrusions (441) fixedly connected to its outer side wall.

7. The transformer core winding device according to claim 1, characterized in that, The fixing mechanism (200) includes: A motor box (210) is fixedly connected to one side of a connecting plate (110). A servo motor is installed inside the motor box (210), and the motor shaft of the servo motor passes through a connecting plate (110) and is fixedly connected to a sleeve (211). A sliding hole is opened on one side of another connecting plate (110). The slide rod (220) is slidably sleeved inside the slide hole. One end of the outer wall of the slide rod (220) and the outer wall of the sleeve (211) are provided with circular through holes. The other end of the outer wall of the slide rod (220) is provided with a bearing. The outer wall of the slide rod (220) is fixedly sleeved with the inner ring of the bearing. A retaining ring (111) is fixedly connected to one side of another connecting plate (110). The outer ring of the bearing is movably sleeved inside the retaining ring (111). Four retaining rings (221) are slidably sleeved on the outer wall of the slide rod (220). Two slide rails (230) each have two sliders (231) slidably engaged inside. Each slider (231) has a support arm (232) rotatably connected to both ends. One end of the four support arms (232) located on the same slide rail (230) is rotatably connected to the outer wall of four collars (221). A rubber pad (233) is fixedly connected to one side of each of the two slide rails (230). Both abutment rings (240) are slidably sleeved with the outer wall of the slide rod (220). An internal threaded cylinder is fixedly connected to the outer wall of each abutment ring (240), and an abutment screw is screwed into the interior of each internal threaded cylinder.

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