Winding mold for transformer coil

Abstract

The winding mold comprises a central shaft and a plurality of blades, a plurality of groups of telescopic assemblies capable of stretching out and drawing back in the radial direction are arranged on the peripheral side face of the central shaft at intervals in the circumferential direction, and the blades are distributed on the peripheral side of the central shaft in a surrounding mode. The blades are detachably installed at the outer side ends of the telescopic assemblies in a one-to-one correspondence mode. According to the winding die for the transformer coil, the blades are distributed on the peripheral side of the center shaft in the surrounding mode through the telescopic assemblies, the distance between the blades and the peripheral side face of the center shaft can be flexibly adjusted according to the inner side caliber size of the transformer coil to be wound in the using process, and appropriate blades can be replaced; the multi-purpose effect of one mold is achieved, the input cost of the winding mold is saved, cost is reduced, efficiency is improved, the mold utilization rate is improved, and economic practicability is good; the winding machine is convenient to use and operate, does not limit use scenes, and can be used for winding coils, strips and wires.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transformer manufacturing technical field, concretely relates to a winding mould for transformer coil. BACKGROUND

[0002] The core component of the transformer is composed of a core (or a magnetic core) and a coil, and the coil has two or more windings, wherein the winding connected to the power source is called the primary coil, and the remaining windings are called the secondary coil. The transformer can transform AC voltage, current and impedance. A simple core transformer is composed of a core made of soft magnetic material and two coils with different numbers of turns wrapped around the core. Dry-type transformers or oil-immersed transformers are generally wound into coils of a certain specification using winding equipment installed with a specific winding mold (also known as a winding core mold), and then the coils are fitted and installed on the core or magnetic core.

[0003] At present, the winding mold for the transformer coil generally corresponds to a special winding mold for a specific specification of transformer. Therefore, transformer manufacturing enterprises need to prepare a variety of winding molds corresponding to the specifications of transformer products, which results in high investment cost and long production cycle of winding molds, seriously affecting the winding efficiency of transformer products. When a specific specification of transformer product is in a state of stagnation, a large number of idle winding molds also need to occupy a certain storage space, which increases the burden of transformer manufacturing enterprises. Therefore, the utility model provides a winding mold for transformer coil with a novel structure to solve the above technical problems. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art and providing a winding mold for transformer coil. The plurality of blades are distributed around the outer periphery of the central shaft through the telescopic assembly. The distance between the plurality of blades and the outer periphery of the central shaft can be adjusted flexibly according to the inner diameter size of the transformer coil to be wound. The appropriate blades can also be replaced to achieve the effect of one mold for multiple uses, which helps to save the investment cost of winding molds, reduce costs and increase efficiency, improve mold utilization rate, and is economical and practical. The utility model is easy to use and does not limit the use scene, and can be used for winding coils, strip materials and wire materials. The overall structure is designed cleverly and reasonably, and the preparation and implementation are feasible.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is to design a winding mold for transformer coil, which comprises a central shaft and a plurality of blades. The outer periphery of the central shaft is provided with a plurality of groups of telescopic assemblies capable of radially telescoping. The plurality of blades are distributed around the outer periphery of the central shaft, and the plurality of blades are one-to-one correspondingly detachably installed on the outer side end of the plurality of groups of telescopic assemblies.

[0006] This utility model discloses a winding mold for transformer coils. Several blades are distributed around the outer periphery of a central shaft via a telescopic assembly. During use, the distance between the blades and the outer periphery of the central shaft can be flexibly adjusted according to the inner diameter of the transformer coil to be wound. Suitable blades can also be replaced to achieve a multi-purpose effect, which helps to save on the investment cost of winding molds, reduce costs and increase efficiency, improve mold utilization, and has good economic practicality. It is easy to use and operate, and has no restrictions on the application scenario. It can be used for winding coils, strips, and wires. The overall structural design is ingenious and reasonable, and the manufacturing and implementation are highly feasible.

[0007] A preferred technical solution is that each telescopic assembly includes a drive mechanism and two linkage mechanisms. The drive mechanism is fixed to the middle of the outer peripheral side of the central shaft, and the two linkage mechanisms are hinged to the two ends of the outer peripheral side of the central shaft. The middle of the inner side of the blade is fixed to the end of the drive rod facing outward of the drive mechanism, and the two ends of the inner side of the blade are hinged to the outer ends of the corresponding linkage mechanisms. The telescopic assembly has a simple structural design. The drive mechanism drives the blade to move radially along the central shaft. The linkage mechanisms located at both ends of the central shaft cooperate with the telescopic assembly and provide stable support for the two ends of the blade after adjustment, thereby ensuring that the winding mold for transformer coils has good stability when winding transformer coils.

[0008] A further preferred technical solution is that the driving mechanism is either an electric push rod or a cylinder. The driving mechanism has good versatility and is readily available commercially, ensuring the smooth fabrication and implementation of the winding mold for transformer coils according to this invention.

[0009] A further preferred technical solution includes: several mounting plates 1 are fixedly fixed at intervals around the two ends of the outer periphery of the central shaft; a mounting plate 2 is fixedly fixed in the middle of the inner side of the blade; U-shaped connectors 1 are fixedly fixed at both ends of the inner side of the blade; the linkage mechanism includes a connecting rod 1 and a connecting rod 2; the connecting rod 1 has U-shaped connectors 2 at both ends; mounting holes are provided on the mounting plates 1 and 2, the two ends of the connecting rod 2, the two sides of the U-shaped connectors 1 and 2, and the end of the drive rod; the inner end of the connecting rod 1 is hinged together with the corresponding mounting plate 1 through the U-shaped connectors 2, bolt assemblies, and the outer end of the connecting rod 1 is hinged together with the inner end of the connecting rod 2 through the U-shaped connectors 2, bolt assemblies, and the outer end of the connecting rod 2 is hinged together with the corresponding U-shaped connectors 1 on the inner side of the blade through bolt assemblies; and the end of the drive rod is fixedly connected to the mounting plate 2 in the middle of the inner side of the blade through bolt assemblies. The linkage mechanism has a simple structural design and high feasibility of fabrication and implementation. When the drive mechanism drives the blade to move in the radial direction outside the central axis, the linkage mechanism and the drive mechanism have good coordination and synchronization. After the blade is adjusted to the correct position, the linkage mechanism can provide stable support for the blade tip.

[0010] A further preferred technical solution includes several mounting plates 1 fixedly fixed at intervals around the outer periphery of the central shaft, a mounting plate 2 fixedly ... The linkage mechanism has a simple structural design and high feasibility of fabrication and implementation. When the drive mechanism drives the blade to move in the radial direction outside the central axis, the linkage mechanism and the drive mechanism have good coordination and synchronization. After the blade is adjusted to the correct position, the linkage mechanism can provide stable support for the blade tip.

[0011] A further preferred technical solution is that the slider has a U-shaped connector three, and mounting holes are provided on both sides of the U-shaped connector three and the outer end of the connecting rod two. The slider is hinged together through the U-shaped connector three, the bolt assembly, and the outer end of the connecting rod two. The hinged connection between the slider and the outer end of the connecting rod two ensures the flexibility of adjustment when the linkage mechanism moves in conjunction with the drive mechanism, and avoids jamming between the linkage mechanism and the blade.

[0012] A further preferred technical solution is that several of the blades are distributed on the same circumference or the same ellipse.

[0013] To ensure the ease of installation and use of the winding mold for transformer coils in the winding equipment, a further preferred technical solution is that the central shaft is a circular rod with mounting sections milled at both ends.

[0014] The advantages and beneficial effects of this utility model are as follows:

[0015] 1. This utility model discloses a winding mold for transformer coils. Several blades are distributed around the outer periphery of a central shaft via a telescopic assembly. During use, the distance between the blades and the outer periphery of the central shaft can be flexibly adjusted according to the inner diameter of the transformer coil to be wound. Suitable blades can also be replaced to achieve a multi-purpose effect, which helps to save on the investment cost of winding molds, reduce costs and increase efficiency, improve mold utilization, and has good economic practicality. It is easy to use and operate, and has no restrictions on the application scenario. It can be used for winding coils, strips, and wires. The overall structure design is ingenious and reasonable, and the manufacturing and implementation are highly feasible.

[0016] 2. The telescopic component has a simple structural design. The drive mechanism is used to drive the blade to move in the radial direction along the central axis. The linkage mechanism located at both ends of the central axis works in coordination with the telescopic component and provides stable support for both ends of the blade after adjustment, thereby ensuring that the winding mold of this utility model for transformer coils has good stability when winding transformer coils.

[0017] 3. The driving mechanism is either an electric push rod or a cylinder. The driving mechanism is versatile and readily available commercially, ensuring the smooth fabrication and implementation of the winding mold for transformer coils according to this invention.

[0018] 4. The linkage mechanism has a simple structural design and high feasibility of fabrication and implementation. When the drive mechanism drives the blade to move in the radial direction outside the central axis, the linkage mechanism and the drive mechanism have good coordination and synchronization. After the blade is adjusted to the correct position, the linkage mechanism can provide stable support for the blade tip. Attached Figure Description

[0019] Figure 1This is a cross-sectional view of a winding mold for a transformer coil in Embodiment 1.

[0020] Figure 2 This is a view of one end of a winding mold for a transformer coil in Embodiment 1;

[0021] Figure 3 yes Figure 2 A magnified view of a section at point H in the middle;

[0022] Figure 4 This is a view of one end of a winding mold for a transformer coil in Embodiment 2;

[0023] Figure 5 yes Figure 4 A magnified view of a section at point S in the middle;

[0024] Figure 6 This is a one-end view of a winding mold for a transformer coil in Embodiment 3.

[0025] In the diagram: 1. Central shaft; 2. Blade; 3. Drive mechanism; 4. Linkage mechanism; 1-1. Mounting plate one; 1-2. Mounting section; 2-1. U-shaped connector one; 2-2. Mounting plate two; 2-3. T-shaped slide; 3-1. Drive rod; 4-1. Linkage one; 4-1a. U-shaped connector two; 4-2. Linkage two; 4-3. Slider; 4-4. U-shaped connector three. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0027] Example 1

[0028] like Figures 1-3 As shown, a winding mold for transformer coils includes a central shaft 1 and several blades 2. The outer circumferential side of the central shaft 1 is provided with several sets of radially expandable and contractible components. The several blades 2 are distributed around the outer circumferential side of the central shaft 1, and the several blades 2 are detachably installed one-to-one on the outer end of the several sets of expandable and contractible components.

[0029] Preferably, each telescopic assembly includes one drive mechanism 3 and two drive mechanisms 4, wherein the drive mechanism 3 is fixed to the middle of the outer peripheral side of the central shaft 1, and the two drive mechanisms 4 are respectively hinged to the two ends of the outer peripheral side of the central shaft 1. The middle of the inner side of the blade 2 is fixed to the end of the drive rod 3-1 facing outward of the drive mechanism 3, and the two ends of the inner side of the blade 2 are hinged to the outer ends of the corresponding drive mechanisms 4.

[0030] More preferably, the drive mechanism 3 is either an electric push rod or a cylinder.

[0031] More preferably, a plurality of mounting plates 1-1 are fixedly fixed at intervals around the outer periphery of the central shaft 1, a mounting plate 2-2 is fixedly fixed at the middle of the inner side of the blade 2, and U-shaped connectors 2-1 are fixedly fixed at both ends of the inner side of the blade 2. The drive mechanism 4 includes a connecting rod 4-1 and a connecting rod 4-2. The connecting rod 4-1 has U-shaped connectors 4-1a at both ends. The mounting plates 1-1, 2-2, both ends of the connecting rod 4-2, the two sides of the U-shaped connectors 2-1, the two sides of the U-shaped connectors 4-1a, and the drive rod 3- Each end of the drive rod 3-1 is provided with a mounting hole. The inner end of the connecting rod 4-1 is hinged together by a U-shaped connector 4-1a, a bolt assembly and a corresponding mounting plate 1-1. The outer end of the connecting rod 4-1 is hinged together by a U-shaped connector 4-1a, a bolt assembly and an inner end of the connecting rod 4-2. The outer end of the connecting rod 4-2 is hinged together by a bolt assembly and a corresponding U-shaped connector 2-1 on the inner side of the blade 2. The end of the drive rod 3-1 is fixedly connected to the mounting plate 2-2 in the middle of the inner side of the blade 2 by a bolt assembly.

[0032] More preferably, several of the blades 2 are distributed on the same circumference.

[0033] More preferably, the central shaft 1 is a circular rod, and mounting sections 1-2 are milled at both ends of the central shaft 1.

[0034] Example 2

[0035] like Figures 4-5As shown, a winding mold for transformer coils differs from the winding mold in Embodiment 1 in that: several mounting plates 1-1 are fixedly fixed at intervals around the outer periphery of the central shaft 1; a mounting plate 2-2 is fixedly fixed at the middle of the inner side of the blade 2; T-shaped grooves 2-3 are fixedly fixed at both ends of the inner side of the blade 2; and the length direction of the T-shaped grooves 2-3 is consistent with the length direction of the central shaft 1. The driving mechanism 4 includes a connecting rod 4-1 and a connecting rod 4-2. The connecting rod 4-1 has U-shaped connectors 4-1a at both ends. The mounting plates 1-1, 2-2, and 4-1a have their own arms and driving rods. Mounting holes are provided at both ends of 3-1. Mounting holes are provided on the inner side of the connecting rod 4-2 and sliding block 4-3 is provided on the outer side. The inner side of the connecting rod 4-1 is hinged together by U-shaped connector 4-1a, bolt assembly and corresponding mounting plate 1-1. The outer side of the connecting rod 4-1 is hinged together by U-shaped connector 4-1a, bolt assembly and inner side of the connecting rod 4-2. The sliding block 4-3 on the outer side of the connecting rod 4-2 is slidably installed in the T-shaped groove 2-3 corresponding to the inner side end of the blade 2. The end of the drive rod 3-1 is fixedly connected to the mounting plate 2-2 in the middle of the inner side of the blade 2 by bolt assembly.

[0036] Preferably, the slider 4-3 has a U-shaped connector 4-4, and mounting holes are provided on both sides of the U-shaped connector 4-4 and the outer end of the connecting rod 4-2. The slider 4-3 is hinged together by the U-shaped connector 4-4, the bolt assembly and the outer end of the connecting rod 4-2.

[0037] Example 3

[0038] like Figure 6 As shown, a winding mold for transformer coils differs from the winding mold in Embodiment 1 in that several of the blades 2 are distributed on the same ellipse.

[0039] In addition, the outline shape formed by several blades 2 can be flexibly adjusted according to the product to be processed, which can be achieved simply by replacing the blades 2 with the corresponding shape.

[0040] The working principle of this utility model for a winding mold for transformer coils is as follows:

[0041] Based on the inner diameter of the transformer coil to be wound, the control system activates the drive mechanism 3 corresponding to several blades 2 to adjust the blades 2 to a suitable position. The circumferential or elliptical outline formed by the blades 2 after adjustment is equal to the inner diameter of the transformer coil to be wound. Blades 2 with appropriate shape and size can also be replaced according to the shape of the transformer coil to be wound. The subsequent winding of the transformer coil is then carried out. After the transformer coil is wound, the control system activates the drive mechanism 3 corresponding to several blades 2 to make the blades 2 radially retract a certain distance, which facilitates the removal of the finished coil from the winding mold and ensures the convenience of coil unloading.

[0042] This utility model discloses a winding mold for transformer coils. Several blades are distributed around the outer periphery of a central shaft via a telescopic assembly. During use, the distance between the blades and the outer periphery of the central shaft can be flexibly adjusted according to the inner diameter of the transformer coil to be wound. Suitable blades can also be replaced to achieve a multi-purpose effect, which helps to save on the investment cost of winding molds, reduce costs and increase efficiency, improve mold utilization, and has good economic practicality. It is easy to use and operate, and has no restrictions on the application scenario. It can be used for winding coils, strips, and wires. The overall structural design is ingenious and reasonable, and the manufacturing and implementation are highly feasible.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A winding die for a transformer coil, characterized in that, It includes a central shaft (1) and several blades (2). The outer circumferential side of the central shaft (1) is provided with several sets of radially expandable and contractible components. Several blades (2) are distributed around the outer circumferential side of the central shaft (1), and several blades (2) are detachably installed on the outer end of several sets of expandable and contractible components. Each telescopic assembly includes a drive mechanism (3) and two linkage mechanisms (4). The drive mechanism (3) is fixed in the middle of the outer peripheral side of the central shaft (1), and the two linkage mechanisms (4) are hinged to the two ends of the outer peripheral side of the central shaft (1). The middle of the inner side of the blade (2) is fixed to the end of the drive rod (3-1) of the drive mechanism (3) facing outward, and the two ends of the inner side of the blade (2) are hinged to the outer ends of the corresponding linkage mechanism (4).

2. The winding mold for transformer coils as described in claim 1, characterized in that, The drive mechanism (3) is either an electric push rod or a cylinder.

3. The winding mold for transformer coils as described in claim 2, characterized in that, The central shaft (1) has several mounting plates (1-1) fixedly fixed at intervals around its outer periphery at both ends. The blade (2) has a mounting plate (2-2) fixedly fixed at the middle of its inner side. The blade (2) has a U-shaped connector (2-1) fixedly fixed at both ends of its inner side. The linkage mechanism (4) includes a connecting rod (4-1) and a connecting rod (4-2). The connecting rod (4-1) has a U-shaped connector (4-1a) at both ends. The mounting plates (1-1), the mounting plates (2-2), the connecting rod (4-2) at both ends, the two sides of the U-shaped connector (2-1), the two sides of the U-shaped connector (4-1a), and the drive rod (3) are all fixedly fixedly fixedly fixedly at both ends of the connecting plates (1-1), the connecting plates (2-2), the connecting rod (4-2), ... drive rod (3) are all fixedly fixedly fixedly fixedly at both ends of the connecting plates (1-1), the connecting plates (2-2), the connecting rod (4-2), the drive rod (3) are all fixedly fixedly fixedly fixedly at both ends of the connecting plates (1-1), the connecting rod (2-2), the drive rod (3) are all fixedly fixedly fixedly fixedly at both ends of the connecting plates (1-1), the connecting rod (2-2), the drive rod (3) are all fixedly fixedly fixedly -1) Mounting holes are provided at both ends. The inner end of the connecting rod (4-1) is hinged together by the U-shaped connector (4-1a), the bolt assembly and the corresponding mounting plate (1-1). The outer end of the connecting rod (4-1) is hinged together by the U-shaped connector (4-1a), the bolt assembly and the inner end of the connecting rod (4-2). The outer end of the connecting rod (4-2) is hinged together by the bolt assembly and the corresponding U-shaped connector (2-1) on the inner side of the blade (2). The end of the drive rod (3-1) is fixedly connected together by the bolt assembly and the mounting plate (2-2) in the middle of the inner side of the blade (2).

4. The winding mold for transformer coils as described in claim 2, characterized in that, The central shaft (1) has several mounting plates (1-1) fixedly fixed at intervals around its outer periphery. The blade (2) has a mounting plate (2-2) fixedly fixed at the middle of its inner side. The blade (2) has T-shaped grooves (2-3) fixedly fixed at both ends of its inner side. The length direction of the T-shaped grooves (2-3) is consistent with the length direction of the central shaft (1). The linkage mechanism (4) includes a connecting rod (4-1) and a connecting rod (4-2). The connecting rod (4-1) has U-shaped connectors (4-1a) at both ends. The mounting plates (1-1), (2-2), and (4-1a) are provided with mounting holes on both sides of the mounting plate (1-1), the mounting plate (2-2), and the end of the drive rod (3-1). The inner end of the connecting rod 2 (4-2) is provided with a mounting hole and the outer end is provided with a slider (4-3). The inner end of the connecting rod 1 (4-1) is hinged together by the U-shaped connector 2 (4-1a), the bolt assembly and the corresponding mounting plate 1 (1-1). The outer end of the connecting rod 1 (4-1) is hinged together by the U-shaped connector 2 (4-1a), the bolt assembly and the inner end of the connecting rod 2 (4-2). The slider (4-3) at the outer end of the connecting rod 2 (4-2) is slidably installed inside the T-shaped groove (2-3) corresponding to the inner side end of the blade (2). The end of the drive rod (3-1) is fixedly connected together by the bolt assembly and the mounting plate 2 (2-2) in the middle of the inner side of the blade (2).

5. The winding mold for transformer coils as described in claim 4, characterized in that, The slider (4-3) has a U-shaped connector three (4-4), and mounting holes are provided on both sides of the U-shaped connector three (4-4) and the outer end of the connecting rod two (4-2). The slider (4-3) is hinged together by the U-shaped connector three (4-4), the bolt assembly and the outer end of the connecting rod two (4-2).

6. The winding die for a transformer coil as described in any one of claims 1 to 5, characterized in that, Several of the blades (2) are distributed on the same circumference or the same ellipse.

7. The winding die for transformer coils as described in claim 6, characterized in that, The central shaft (1) is a circular rod, and mounting sections (1-2) are milled at both ends of the central shaft (1).

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