Coil winding device for transformer

Abstract

The coil winding device for the transformer comprises a machine frame and a rotating mechanism arranged on one side of the machine frame, and further comprises a winding mechanism arranged on one side of the machine frame, the winding mechanism comprises a mounting plate, a fixing plate, a conical block, a limiting unit and a plurality of winding columns, the mounting plate is arranged on the other side of the machine frame, and the fixing plate is arranged on the other side of the machine frame. The mounting plate is provided with a plurality of rod pieces perpendicular to the surface of the mounting plate, one side of the fixing plate is connected with the rod pieces, the fixing plate is provided with a through hole, the winding columns are slidably arranged on the fixing plate in an array mode with the through hole as the center, and the sides, away from the through hole, of the winding columns are connected with springs. When the top of the conical block penetrates through the through hole and slides into the inner sides of the winding columns, the side wall of the conical block extrudes the inner sides of the winding columns, so that the winding columns are far away from one another, the limiting unit is configured to fix the position of the conical block, the distance between the winding columns is adjusted through the conical block so as to adapt to frameworks with different diameters, and the winding columns can be fixed. And the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer coil manufacturing, in particular to a transformer coil winding device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It is basic equipment for power transmission and distribution and is widely used in industry, agriculture, transportation, urban communities and other fields. Its main functions include: voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization (magnetic saturation transformer). The transformer coil is a type of coil that is required for the transformer to operate. Common coils are usually layered, with the turns of the coil arranged in layers along the axial direction and wound continuously. Each layer is like a cylinder. Depending on the design and functional requirements of the transformer, the diameter of the skeleton varies, but the existing winding mechanism can only fix skeletons of a single diameter.

[0003] The Chinese utility model patent with the announcement number CN216980330U discloses a transformer coil winding frame, comprising a frame, on which a copper wire placement rod is fixedly mounted, a power shaft rotatably mounted on the upper end of the frame via a bearing, and a screw fixedly connected to the left end of the power shaft, a fixing plate provided on the screw, a vertical pole vertically mounted on the upper end of the frame, and a wheel frame sleeved on the vertical pole, a rotating shaft rotatably mounted in the wheel frame, and a guide wheel fixedly mounted on the rotating shaft. The utility model provides a fixing plate, with four sets of fixing plates provided, and the four sets of fixing plates can be opened in pairs. In this way, the four sets of fixing plates can be used to support the inner wall of a circular, elliptical, or even square coil barrel, thereby carefully tensioning and fixing coil barrels of different shapes. However, the above technical solution requires adjusting the position of the rotating plate twice to press the four sets of fixing plates against the inner wall of the coil barrel, resulting in low adjustment efficiency. Utility Model Content

[0004] The utility model provides a coil winding device for a transformer, which can solve the above technical problems.

[0005] The utility model is achieved through the following technical solutions:

[0006] A coil winding device for a transformer includes a frame, a winding mechanism, a rotating mechanism, and a coil for supplying wire to a frame sleeved on the winding mechanism. The winding mechanism includes a mounting plate, a fixing plate, a tapered block, and a limiting unit.

[0007] The mounting plate is provided with a plurality of rods perpendicular to its surface, one side of the fixing plate is connected to the plurality of rods, the fixing plate is provided with a through hole, and a plurality of winding posts perpendicular to its surface and sliding radially thereof are arranged in an array with the through hole as the center on the fixing plate, a plurality of limit blocks corresponding to the plurality of winding posts are provided on the fixing plate on the side of the plurality of winding posts away from the through hole, a spring is provided between the limit block and the winding post, a push rod perpendicular to the bottom of the conical block is provided at the bottom, the push rod is sleeved and slid on the rod, the conical block can pass through the through hole horizontally and press against the inner side of the plurality of winding posts, and the limit unit is configured to lock the conical block;

[0008] The rotating mechanism is configured to drive the skeleton sleeved on a plurality of winding poles to rotate around its own axis.

[0009] Furthermore, a guide portion is provided at one end of the wire column close to the through hole, and the guide portion is an inclined surface adapted to the side wall of the tapered block.

[0010] Furthermore, the inclined surface is provided with balls.

[0011] Furthermore, the limiting unit includes a fixing hole formed on one side of the sliding block, and a threaded rod is screwed into the fixing hole.

[0012] Furthermore, the limiting unit includes a telescopic rod, a fixed end of the telescopic rod is arranged on the mounting plate, and a movable end of the telescopic rod is connected to the push rod.

[0013] Furthermore, a slot is provided on the outer side of the winding post along its length direction, and an arc-shaped plate is inserted into the slot.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] The cam is fixed to the frame, and the ... BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic structural diagram of a transformer coil winding device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the winding column and the fixing plate according to an embodiment of the present utility model.

[0019] Markings and corresponding parts names in the accompanying drawings:

[0020] 10-frame, 11-rotation mechanism;

[0021] 20-mounting plate, 21-rod, 22-fixing plate, 221-through hole, 23-conical block, 231-push rod, 233-threaded rod, 24-winding column, 241-guide part, 242-ball, 243-arc plate, 244-spring, 25-limiting block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0023] Example

[0024] A coil winding device for a transformer includes a frame 10, a winding mechanism, a rotating mechanism 11, and a coil (not shown in the figure) for supplying wire to a skeleton mounted on the winding mechanism. The frame 1010 can be arranged vertically or horizontally. The rotating mechanism 1111 includes a rotating motor. The rotating motor can be a three-phase asynchronous motor or a stepping motor to ensure the uniformity of winding and tension control.

[0025] The winding mechanism includes a mounting plate, a fixed plate 22, a conical block 23 and a limit unit. The mounting plate is arranged on one side of the frame 10. The mounting plate is provided with a number of rods perpendicular to its surface. One side of the fixed plate 22 is connected to the number of rods. The fixed plate 22 is provided with a through hole 221. The fixed plate 22 is provided with a number of winding posts 24 perpendicular to its surface and sliding radially thereof in an array with the through hole 221 as the center. For example, the fixed plate 22 is provided with a number of radial slide grooves with the through hole 221 as the center, and the winding post 24 is slid into the slide groove.

[0026] A plurality of limit blocks 25 corresponding to the plurality of winding posts 24 are provided on the fixed plate 22 on the side of the plurality of winding posts 24 away from the through hole 221, and a spring 244 is provided between the limit blocks 25 and the winding posts 24. The spring 244 is used to limit the initial position of the winding posts 24 in the slide groove and provide a restoring force.

[0027] A push rod 231 perpendicular to the bottom of the conical block 23 is provided at the bottom, and the push rod 231 is slidably mounted on the rod. For example, the push rod 231 includes a push rod 231 body vertically arranged at the bottom of the conical block 23, and the push rod 231 body is provided with a plurality of sliders corresponding to the plurality of rods along its circumference, and the sliding sleeve is slidably mounted on the rod.

[0028] The tapered block 23 can horizontally pass through the through hole 221 and press against the inner sides of the winding posts 24 . The limiting unit is configured to lock the tapered block 23 .

[0029] The rotating mechanism 11 is configured to drive the skeleton sleeved on a plurality of winding poles 24 to rotate around its own axis.

[0030] A coil winding device for a transformer, comprising a frame 10, a winding mechanism, a rotating mechanism 11, and a coil for supplying wire to a skeleton mounted on the winding mechanism. The winding mechanism comprises a mounting plate, a fixing plate 22, a tapered block 23, and a limiting unit. When in use, the skeleton is inserted into all winding posts 24, and a push rod 231 is slidably mounted on the rod to drive the tapered block 23 to move, so that its top passes through the through hole 221 and presses against the inner side of the winding post 24 and moves along its axial direction. During the movement, the side wall of the tapered block 23 is in contact with the winding post 24. The contact point on the inside changes, generating radial force components of different sizes. Under the action of this force component, all the winding posts 24 move away from each other until they are pressed against the inner wall of the skeleton. After pressing against the inner wall of the skeleton, the limiting mechanism fixes the position of the conical block 23, and the rotating mechanism 11 drives the mounting plate to rotate, thereby driving the skeleton sleeved on the winding posts 24 to rotate around its own axis. With this arrangement, the distance between all the winding posts 24 can be adjusted to tighten the inner wall of the skeleton by adjusting the conical block 23 only once, thereby improving the adjustment efficiency.

[0031] In another embodiment, a guide portion 241 is provided at one end of the winding post near the through hole 221. The guide portion 241 is an inclined surface adapted to the side wall of the conical block 23, providing a smooth transition for the conical block 23 to enter the inner side of the plurality of winding posts 24, so that the conical block 23 can move more smoothly along the axial direction of the winding post 24.

[0032] In another embodiment, the inclined surface is provided with a ball 242, and the sliding friction between the inner side of the conical block 23 and the winding rod 24 is converted into rolling friction, thereby reducing the friction force of the contact surface, reducing the wear between the contact surfaces, and making the sliding of the conical block 23 smoother.

[0033] In another embodiment, the limiting unit includes a fixing hole opened on one side of the slider 232, in which a threaded rod 233 is screwed. The slider 232 moves on the rod to drive the conical block 23 connected to the push rod 231 to move. When it moves to a position, the screw is tightened to fix the slider 232 on the rod to fix the position of the conical block 23.

[0034] In another embodiment, the limiting unit includes a telescopic rod, the fixed end of the telescopic rod is set on the mounting plate 20, and the movable end of the telescopic rod is connected to the push rod 231. The telescopic rod drives the push rod 231 to drive the conical block 23 through the through hole 221 into the inner side of the winding column 24 and move along the axial direction of the winding column 24. When the conical block 23 moves to a position, the telescopic rod pauses to lock the position of the conical block 23. Such a structure is simple and easy to manufacture.

[0035] In another embodiment, an anti-slip pad is glued to the outer surface of the winding post 24, and the surface of the anti-slip pad is provided with anti-slip grooves. The anti-slip pad can effectively increase the friction between the winding post 24 and the inner wall of the skeleton, increase the stability of the skeleton on the winding post 24, maintain the stability of the skeleton during the winding process, and prevent sliding or displacement.

[0036] In another embodiment, the cross-sectional area of the winding post 24 is square, which can better fit with the square frame. A slot is provided on the outer side of the winding post 24 along its length direction, and an arc-shaped plate 243 is inserted into the slot. The arc can fit the inner wall of the circular frame, increase the contact area of the winding post 24 with the frame, distribute the pressure more evenly, and increase the stability of the winding post 24 fixation. Such a setting can improve applicability.

[0037] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A coil winding device for a transformer, comprising a frame, a winding mechanism, a rotating mechanism, and a coil for supplying wire to a frame mounted on the winding mechanism, characterized in that: The winding mechanism includes a mounting plate, a fixing plate, a tapered block and a limiting unit. The cam is provided with a plurality of rods perpendicular to its surface, one side of the fixing plate is connected to the plurality of rods, the fixing plate is provided with a through hole, and the fixing plate is arrayed with a plurality of winding posts perpendicular to its surface and sliding radially along the through hole, with the through hole as the center, and the fixing plate is provided with a plurality of limit blocks corresponding to the plurality of winding posts on the fixing plate away from the through hole, and a spring is provided between the limit block and the winding post, and a push rod is provided at the bottom of the conical block, and the push rod is sleeved and slid on the rod, and the push rod includes a push rod body vertically arranged at the bottom of the conical block, and the push rod body is provided with a plurality of sliders corresponding to the plurality of rods along its circumference, and the slider sleeve is slid on the rod, and the conical block can horizontally pass through the through hole and press against the inner sides of the plurality of winding posts, and the limiting unit is configured to lock the conical block; The rotating mechanism is configured to drive the skeleton sleeved on the plurality of winding poles to rotate around its own axis.

2. A transformer coil winding device according to claim 1, characterized in that: A guide portion is provided at one end of the winding post close to the through hole, and the guide portion is an inclined surface adapted to the side wall of the tapered block.

3. A transformer coil winding device according to claim 2, characterized in that: The inclined surface is provided with balls.

4. A transformer coil winding device according to claim 1, characterized in that: The limiting unit includes a fixing hole opened on one side of the sliding block, and a threaded rod is screwed into the fixing hole.

5. The transformer coil winding device according to claim 1, characterized in that: The limiting unit includes a telescopic rod, a fixed end of the telescopic rod is arranged on the mounting plate, and a movable end of the telescopic rod is connected to the push rod.

6. The transformer coil winding device according to claim 1, characterized in that: A slot is provided on the outer side of the winding post along its length direction, and an arc-shaped plate is inserted into the slot.

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