High-voltage winding production line and method for producing a high-voltage winding

Abstract

The present application relates to a kind of high-voltage winding production line and the method for preparing high-voltage winding, including the preheating mechanism for preheating high-voltage winding preform, for the injection of high-voltage winding preform after preheating injection machine, feed mechanism and demolding mechanism;Feed mechanism is used to deliver high-voltage winding preform after preheating to injection machine, and high-voltage winding preform after injection can be delivered to operating station;Preheating mechanism, feed mechanism, demolding mechanism are all arranged in the same side of injection machine;Feed mechanism and demolding mechanism are sequentially arranged in Y direction.This application can facilitate the replacement of injection mold of injection machine on the other side of injection machine by arranging preheating mechanism, feed mechanism and demolding mechanism on the same side of injection machine, improve the adaptation rate of injection machine, and then can improve injection efficiency and production efficiency;By sequentially arranging feed mechanism and demolding mechanism in Y direction, it is convenient for the operation of high-voltage winding preform, and the production efficiency of high-voltage winding can be improved.

Description

Technical Field

[0001] This invention relates to the field of power transformer technology, and in particular to a high-voltage winding production line and a method for manufacturing high-voltage windings. Background Technology

[0002] Transformers can currently be classified into three types: oil-immersed transformers, dry-type transformers, and gas-fired transformers. Dry-type transformers offer advantages such as being oil-free, fire-resistant, having a long lifespan, energy efficiency, low noise, simple maintenance, and high reliability. Most dry-type transformers currently on the market are either resin-cast high-voltage windings or open-type transformers. A dry-type transformer consists of a core, high-voltage windings, and low-voltage windings. However, current production lines for manufacturing high-voltage windings have relatively low production efficiency. Summary of the Invention

[0003] Therefore, it is necessary to provide a high-voltage winding production line and a method for manufacturing high-voltage windings that can improve the production efficiency of high-voltage windings.

[0004] A high-voltage winding production line includes: a preheating mechanism for preheating high-voltage winding preforms, an injection molding machine for injecting the preheated high-voltage winding preforms, a feeding mechanism, and a demolding mechanism.

[0005] The feeding mechanism is used to transport the preheated high-voltage winding preform to the injection molding machine, and can also transport the injected high-voltage winding preform to the operating station.

[0006] The demolding mechanism is used to receive the high-voltage winding preform from the operating station and demold the high-voltage winding preform to obtain the high-voltage winding.

[0007] The preheating mechanism, the feeding mechanism, and the demolding mechanism are all located on the same side of the injection molding machine; the feeding mechanism and the demolding mechanism are arranged sequentially in the Y direction.

[0008] By placing the preheating mechanism, feeding mechanism, and demolding mechanism on the same side of the injection molding machine, it is convenient to change the injection mold on the other side of the injection molding machine, thereby improving the adaptability of the injection molding machine and thus improving the injection efficiency and the production efficiency of the high voltage winding. By arranging the feeding mechanism and demolding mechanism in sequence in the Y direction, it is convenient to operate the high voltage winding preform, thereby improving the production efficiency of the high voltage winding.

[0009] In one embodiment, the feeding mechanism includes: a first support frame and a support frame for carrying the high-voltage winding preform. The support frame is movably disposed on the first support frame along the X direction. The support frame can transport the preheated high-voltage winding preform to the injection molding machine and can transport the injected high-voltage winding preform to the operating station. The first support frame is disposed at the feed port of the injection molding machine, and the preheating mechanism is disposed on the first support frame. The first support frame and the demolding mechanism are arranged parallel to each other in the Y direction.

[0010] In one embodiment, the feeding mechanism includes a first support frame, a second support frame, and two support frames for carrying the high-voltage winding preform. The two support frames are movably disposed on the first support frame and the second support frame respectively along the X direction. The preheating mechanism is disposed on the first support frame. The second support frame is disposed at the feed port of the injection molding machine. The first support frame, the second support frame, and the demolding mechanism are arranged parallel to each other in the Y direction.

[0011] In one embodiment, the first support frame includes a spraying station, and the carrier on the first support frame is capable of conveying the high-voltage winding preform to the spraying station so that the spraying mechanism sprays coupling agent onto the high-voltage winding preform and conveys the sprayed high-voltage winding preform to the preheating mechanism for preheating.

[0012] In one embodiment, the second support frame is used to receive the preheated high-voltage winding preform; the carrier frame disposed on the second support frame can transport the preheated high-voltage winding preform to the injection molding machine, and can transport the injected high-voltage winding preform to the operating station.

[0013] In one embodiment, the first support frame, the second support frame, and the demolding mechanism are all arranged along the X direction and are equally spaced in the Y direction, and the high-voltage winding preform is placed along the X direction during operation and transportation.

[0014] In one embodiment, the high-voltage winding preform is mounted on the support frame via a mandrel, the mandrel is provided with a first anti-rotation component, and the support frame is provided with an mounting groove and a second anti-rotation component;

[0015] The core mold is disposed in the mounting groove, and the first anti-rotation component and the second anti-rotation component cooperate to prevent the core mold from rotating relative to the mounting groove.

[0016] In one embodiment, the core mold is provided with a limiting member that can abut against one side of the mounting groove to limit the position of the core mold relative to the support frame.

[0017] In one embodiment, the high-voltage winding production line further includes a glue-applying mechanism for applying glue to the high-voltage winding preform after demolding to obtain the high-voltage winding; the glue-applying mechanism is located at the end of the demolding mechanism away from the injection molding machine.

[0018] In one embodiment, the high-voltage winding production line further includes a disassembly and positioning plate support frame, which is used to support the high-voltage winding preform on which the positioning plate is installed, and the positioning plate is used to snap-fit ​​with the injection mold of the injection machine.

[0019] The disassembly positioning plate support frame is located on the side of the demolding mechanism away from the injection molding machine.

[0020] This application also provides a method for manufacturing high-voltage windings using the high-voltage winding production line described above, comprising the following steps:

[0021] The preheating mechanism preheats the high-voltage winding preform;

[0022] The feeding mechanism delivers the preheated high-voltage winding preform to the injection molding machine;

[0023] The injection molding machine injects the preheated high-voltage winding preform;

[0024] The feeding mechanism transports the injected high-voltage winding preform to the operating station;

[0025] The demolding mechanism receives the high-voltage winding preform from the operating station, demolds it, and obtains the high-voltage winding.

[0026] In one embodiment, prior to the step of the preheating mechanism preheating the high-voltage winding preform, the method further includes: a spraying mechanism spraying a coupling agent onto the outer periphery of the high-voltage winding preform;

[0027] And / or,

[0028] After the demolding mechanism receives the high-voltage winding preform from the operating station and demolds it to obtain the high-voltage winding, the process further includes: a glue-applying mechanism applying glue to the defects in the demolded high-voltage winding preform.

[0029] In the above scheme, by setting the preheating mechanism, feeding mechanism, and demolding mechanism on the same side of the injection molding machine, it is convenient to change the injection mold on the other side of the injection molding machine, improving the adaptability of the injection molding machine, and thus improving the injection efficiency and the production efficiency of the high-voltage winding. By arranging the feeding mechanism and demolding mechanism sequentially in the Y direction, it is convenient for the operation of the high-voltage winding preform, which can improve the production efficiency of the high-voltage winding. By setting the glue filling mechanism at the end of the demolding mechanism away from the injection molding machine, the stroke of moving the demolded high-voltage winding preform to the glue filling mechanism can be reduced, and it is convenient for manual sequential operation, further improving the production efficiency of the high-voltage winding. Moreover, during the process of the feeding mechanism conveying the high-voltage winding preform to the operating station and the demolding mechanism demolding the high-voltage winding preform, the high-voltage winding preform moves in the same direction, so that there is no need to rotate and change direction when operating the high-voltage winding preform, which can improve the production efficiency of the high-voltage winding. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a high-voltage winding production line according to an embodiment of the present invention;

[0031] Figure 2 This is a top view of a high-voltage winding production line according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the connection structure of the second support frame, bearing frame, core mold and high voltage winding prefabricated component according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the connection structure of the preheating mechanism, the first support frame, the bearing frame, the core mold, and the high-voltage winding prefabricated component according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the demolding mechanism according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the adhesive filling mechanism according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of a high-voltage winding production line according to another embodiment of the present invention;

[0037] Figure 8 This is a top view of a high-voltage winding production line according to another embodiment of the present invention. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] See Figure 1 , Figure 2 , Figure 7 and Figure 8 Some embodiments of the present invention provide a high-voltage winding production line 10, including a preheating mechanism 100, an injection molding machine 200, a feeding mechanism 300, and a demolding mechanism 400. The preheating mechanism 100 is used to preheat a high-voltage winding preform 800. The injection molding machine 200 is used to inject the preheated high-voltage winding preform 800. The feeding mechanism 300 is used to transport the preheated high-voltage winding preform 800 to the injection molding machine 200, and can also transport the injected high-voltage winding preform 800 to a working station, wherein the working station is located between the feeding mechanism 300 and the demolding mechanism 400. The demolding mechanism 400 is used to receive the high-voltage winding preform 800 from the working station and demold the high-voltage winding preform 800 to obtain a high-voltage winding. Specifically, the injection molding machine 200 injects high-temperature vulcanized silicone rubber onto the outer periphery of the high-voltage winding preform 800.

[0045] Specifically, the high-voltage winding preform 800 includes a winding body and a high-voltage coil, with conductors wound around the winding body to form the high-voltage coil. More specifically, the winding body includes a support body and a winding section, wherein the support body can be a hollow cylinder, such as a hollow round cylinder, a hollow elliptical cylinder, or other hollow cylindrical bodies. The support body may also include several annular members spaced apart along the axial direction of the winding body, such as circular annular members, elliptical annular members, or other annular members; this application does not limit this. The winding section is located on the outer circumferential surface of the support body, and conductors are wound in the winding section to form a high-voltage coil. The high-voltage coil includes several coil segments arranged at intervals along the axial direction of the support body.

[0046] The preheating mechanism 100, the feeding mechanism 300, and the demolding mechanism 400 are all located on the same side of the injection molding machine 200, which facilitates the replacement of injection molds of different specifications on the other side of the injection molding machine 200, thereby improving the versatility of the injection molding machine 200. The feeding mechanism 300 and the demolding mechanism 400 are arranged sequentially in the Y direction to facilitate the operation of the high-voltage winding preform 800 and improve the production efficiency of the high-voltage winding.

[0047] Please see Figure 1 ,Figure 2 , Figure 3 and Figure 4 According to some embodiments of this application, optionally, in a first embodiment, the feeding mechanism 300 includes a first support frame 310, a second support frame 330, and two support frames 320 for carrying the high-voltage winding preform 800. The two support frames 320 are movably disposed on the first support frame 310 and the second support frame 330 along the X direction, respectively. The preheating mechanism 100 is disposed on the first support frame 310. The second support frame 330 is disposed at the feed port of the injection molding machine 200. The first support frame 310, the second support frame 330, and the demolding mechanism 400 are arranged sequentially in the Y direction to facilitate the operation of the high-voltage winding preform 800 and improve the production efficiency of the high-voltage winding.

[0048] Specifically, a first guide rail is provided on the first support frame 310, and a second guide rail 331 is provided on the second support frame 330. The first guide rail and the second guide rail 331 extend along the X direction. Both support frames 320 include a support portion 321 for supporting the high-voltage winding preform 800 and a movable portion 322 mounted on the support portion 321 and facilitating movement. The two support frames 320 are movably mounted on the first guide rail and the second guide rail 331 along the X direction via corresponding movable portions 322, facilitating rapid rotation of the high-voltage winding preform 800. For example, the movable portion 322 can be a moving wheel or a rolling bearing; this application does not limit this to either.

[0049] The carrier frame 320, mounted on the first support frame 310, transports the high-voltage winding preform 800 to the preheating mechanism 100 for preheating. The second support frame 330 receives the preheated high-voltage winding preform 800. The carrier frame 320, mounted on the second support frame 330, transports the preheated high-voltage winding preform 800 to the injection molding machine 200 and also transports the injected high-voltage winding preform 800 to the operating station.

[0050] By placing the preheating mechanism 100 on the first support frame 310 and the second support frame 330 at the inlet of the injection molding machine 200, the carrier frame 320 on the first support frame 310 can transfer one preheated high-voltage winding preform 800 to the second support frame 330 for injection, while the other high-voltage winding preform 800 can be transported to the preheating mechanism 100 via the carrier frame 320 on the first support frame 310. This allows the preheating mechanism 100 and the injection molding machine 200 to operate simultaneously, improving the production efficiency of high-voltage windings. Furthermore, the parallel arrangement of the first support frame 310, the second support frame 330, and the demolding mechanism 400 in the Y direction ensures a compact layout while facilitating the movement of the high-voltage winding preform 800, thus improving production efficiency. Additionally, the separate arrangement of the preheating mechanism 100, the first support frame 310, the second support frame 330, and the injection molding machine 200 facilitates maintenance.

[0051] Please see Figure 7 and Figure 8 According to some embodiments of this application, optionally, in a second embodiment, the feeding mechanism 300 includes a first support frame 310 and a support frame 320 for carrying the high-voltage winding preform 800. The support frame 320 is movably disposed on the first support frame 310 in the X direction. The support frame 320 can transport the preheated high-voltage winding preform 800 to the injection molding machine 200 and can transport the injected high-voltage winding preform 800 to the operating station. The first support frame 310 is disposed at the feed port of the injection molding machine 200, and the preheating mechanism 100 is disposed on the first support frame 310. The first support frame 310 and the demolding mechanism 400 are arranged sequentially in the Y direction to facilitate the operation of the high-voltage winding preform 800 and improve the production efficiency of the high-voltage winding.

[0052] By placing the first support frame 310 at the feed inlet of the injection molding machine 200 and the preheating mechanism 100 on the first support frame 310, the carrier frame 320 can not only transport the high-voltage winding preform 800 to the preheating mechanism 100 for preheating, but also transport the preheated high-voltage winding preform 800 to the injection molding machine 200 and the injected high-voltage winding preform 800 to the operating station. During the transport process, the carrier frame 320 only needs to be moved along the X direction, reducing the operating time of the high-voltage winding preform 800, improving the production efficiency of the high-voltage winding, and eliminating the need for additional cranes or trolleys, thus reducing costs. By arranging the first support frame 310 and the demolding mechanism 400 parallel in the Y direction, the high-voltage winding preform 800 does not need to rotate or change direction during operation, improving operating efficiency while maintaining a compact layout, thereby increasing the production efficiency of the high-voltage winding. (See reference) Figure 7 and Figure 8 In this embodiment, the first support frame 310 adopts the same as...Figure 3 The second support frame 330 has the same structure. It can also be used in other embodiments. Figure 4 The structure of the first support frame 310.

[0053] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 According to some embodiments of this application, the preheating mechanism 100 has a preheating chamber 110, which is disposed on the moving path of the support frame 320. Specifically, a first guide rail is disposed at the bottom of the preheating chamber 110. When it is necessary to transport the high-voltage winding preform 800 to the preheating mechanism 100 for preheating, the support frame 320 can be driven to move in the X direction, so that the support frame 320 and the high-voltage winding preform 800 enter the preheating chamber 110 for preheating. The support frame 320 can be electrically driven or manually driven, and this application does not limit this.

[0054] The first support frame 310 and the preheating mechanism 100 are an integral structure. In other embodiments, the first support frame 310 and the preheating mechanism 100 may also be separate structures, as long as the preheating of the high-voltage winding preform 800 can be achieved, and this application does not limit this.

[0055] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 According to some embodiments of this application, the first support frame 310 includes a spraying station. A carrier frame 320 on the first support frame 310 can transport the high-voltage winding preform 800 to the spraying station, allowing the spraying mechanism to spray a coupling agent onto the high-voltage winding preform 800, and then transport the sprayed high-voltage winding preform 800 to the preheating mechanism 100 for preheating. By spraying the coupling agent, the interfacial bonding performance between the high-voltage winding preform 800 and the high-temperature vulcanized silicone rubber can be improved, thereby improving the mechanical properties of the high-voltage winding. Specifically, the spraying station is located on the moving path of the carrier frame 320, i.e., it can be located on both sides of the preheating mechanism 100 along the X direction, facilitating the operation of the high-voltage winding preform 800 and improving the production efficiency of the high-voltage winding. In other embodiments, the spraying station may not be located on the first support frame 310, as long as the spraying of the high-voltage winding preform 800 can be achieved; this application does not limit this.

[0056] Please see Figure 1 , Figure 2 and Figure 3According to some embodiments of this application, optionally, the first support frame 310, the second support frame 330, and the demolding mechanism 400 are all arranged along the X direction and equally spaced in the Y direction, and the high-voltage winding preform 800 is placed along the X direction during operation and transportation. Specifically, the high-voltage winding preform 800 on the first support frame 310 and the second support frame 330 moves along the X direction. During the demolding process of the demolding mechanism 400 demolding the high-voltage winding preform 800, the high-voltage winding preform 800 moves along the X direction.

[0057] By arranging the first support frame 310, the second support frame 330, and the demolding mechanism 400 at equal intervals in the Y direction, the production line layout is neat and compact, facilitating the operation of the high-voltage winding preform 800. Specifically, while the second support frame 330 begins to transport the injected high-voltage winding preform 800 to the operating station, the first support frame 310 can begin to transport the preheated high-voltage winding preform 800 to the second support frame 330, improving the operating efficiency of the high-voltage winding preform 800. The high-voltage winding preform 800 on the first support frame 310 and the second support frame 330 moves along the X direction, and during the demolding process by the demolding mechanism 400, the high-voltage winding preform 800 also moves along the X direction. This eliminates the need for rotation and reversal when operating the high-voltage winding preform 800, facilitating its operation and improving the production efficiency of the high-voltage winding.

[0058] Please see Figure 1 , Figure 3 and Figure 4 According to some embodiments of this application, optionally, the high-voltage winding preform 800 is mounted on the support frame 320 via a mandrel 600. A first anti-rotation member 610 is provided on the mandrel 600, and a mounting groove and a second anti-rotation member 620 are provided on the support frame 320. The mandrel 600 is disposed within the mounting groove, and the first anti-rotation member 610 and the second anti-rotation member 620 cooperate to prevent the mandrel 600 from rotating relative to the mounting groove.

[0059] Specifically, the first anti-rotation component 610 includes two protrusions located on both sides of the shaft head at one end of the mandrel 600, with the extension directions of the two protrusions perpendicular to the axial direction of the mandrel 600. The second anti-rotation component 620 includes two baffles located on both sides of the mounting groove on the support frame 320, with the extension directions of the two baffles parallel to the axial direction of the mounting groove. When the mandrel 600 is placed in the mounting groove of the support frame 320, the two protrusions abut vertically against the top of the two baffles, effectively preventing the high-voltage winding preform 800 from twisting during transport due to the rotation of the mandrel 600, thus avoiding surface damage to the high-voltage winding preform 800. More specifically, the two protrusions are symmetrically arranged relative to the axial direction of the mandrel 600, and the two baffles are symmetrically arranged relative to the axial direction of the mounting groove, resulting in a uniform distribution of the force between the first anti-rotation component 610 and the second anti-rotation component 620, making the support of the support frame 320 for the mandrel 600 more stable.

[0060] Please see Figure 1 , Figure 3 and Figure 4 According to some embodiments of this application, optionally, a limiting member 630 is provided on the core mold 600. The limiting member 630 can abut against the side of the mounting groove away from the first anti-rotation member 610 to limit the position of the core mold 600 relative to the support frame 320. Specifically, the limiting member 630 protrudes from the shaft head at one end of the core mold 600. By providing the limiting member 630, on the one hand, it is convenient to position the high-voltage winding preform 800 and the core mold 600 on the support frame 320, and on the other hand, it can prevent the high-voltage winding preform 800 from falling off due to the sliding of the core mold 600 during transportation, thus preventing damage to the surface of the high-voltage winding preform 800.

[0061] Please see Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the high-voltage winding production line 10 further includes a glue-applying mechanism 500. The glue-applying mechanism 500 is used to apply glue to the demolded high-voltage winding preform 800 to obtain a high-voltage winding. The glue-applying mechanism 500 is located at the end of the demolding mechanism 400 away from the injection molding machine 200. By placing the glue-applying mechanism 500 at the end of the demolding mechanism 400 away from the injection molding machine 200, the stroke required to move the demolded high-voltage winding preform 800 to the glue-applying mechanism 500 can be reduced, and manual sequential operation is facilitated, further improving the production efficiency of the high-voltage winding. It should be understood that: See... Figure 6 The glue-applying mechanism 500 can adopt a known structure.

[0062] For example, the glue application mechanism 500 includes a working platform 510 and a glue application bracket 520. A lower heating plate 530 is disposed on the working platform 510, and an upper heating plate 540 is disposed on the glue application bracket 520 opposite to the lower heating plate 530. The lower heating plate 530 is movably disposed on the working platform 510 in the X direction. The upper heating plate 540 is adjustablely disposed on the glue application bracket 520 in the Z direction.

[0063] When applying adhesive, the high-voltage winding preform 800 can be placed on the lower heating plate 530. By adjusting the position of the lower heating plate 540, the position of the high-voltage winding preform 800 can be adjusted so that the high-voltage winding preform 800 is located between the upper heating plate 540 and the lower heating plate 530. This drives the upper heating plate 540 to move downward, so that the upper heating plate 540 and the lower heating plate 530 simultaneously abut against the high-voltage winding preform 800, thereby providing the temperature and pressure required for adhesive application.

[0064] Please see Figure 1 , Figure 2 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the high-voltage winding production line 10 further includes a disassembly positioning plate support frame 700. The disassembly positioning plate support frame 700 is used to support the high-voltage winding preform 800 on which the positioning plate is installed, facilitating manual operation. The positioning plate is used to snap into the injection mold of the injection molding machine 200. It should be understood that: before injection, the positioning plate is installed on the high-voltage winding preform 800. During injection, the positioning plate can be snapped into the injection mold of the injection molding machine 200, so that the positioning plate is fixed in the injection mold, thereby fixing the high-voltage winding preform 800 in the injection mold. This can effectively prevent the position of the high-voltage winding preform 800 from shifting due to the large injection pressure during the injection of silicone rubber, thus affecting the quality of the high-voltage winding.

[0065] The disassembly positioning plate support frame 700 is located on the side of the demolding mechanism 400 away from the injection molding machine 200. Furthermore, in the Y direction, the disassembly positioning plate support frame 700 is positioned between the glue filling mechanism 500 and the preheating mechanism 100. Since the high-voltage winding preform 800 is equipped with a positioning plate after demolding, the disassembly positioning plate support frame 700 can receive the demolded high-voltage winding preform 800, and the positioning plate on the high-voltage winding preform 800 can be removed from the disassembly positioning plate support frame 700.

[0066] By setting the disassembly positioning plate support frame 700 on the side of the demolding mechanism 400 away from the injection machine 200, and in the Y direction, setting the disassembly positioning plate support frame 700 between the glue filling mechanism 500 and the preheating mechanism 100, the layout is compact, which facilitates the timely receipt of the high voltage winding preform 800 after demolding, and also facilitates the timely transfer of the high voltage winding preform 800 after the positioning plate is removed to the glue filling mechanism 500, thereby improving the production efficiency of the high voltage winding.

[0067] Please see Figure 1 , Figure 2 , Figure 5 , Figure 7 and Figure 8 According to some embodiments of this application, optionally, the demolding mechanism 400 includes a frame 410, a core mold clamping assembly 420 disposed at one end of the frame 410, and a release assembly 430. The core mold clamping assembly 420 is used to clamp the core mold 600 so that the position of the core mold 600 relative to the core mold clamping assembly 420 is fixed. The release assembly 430 is used to demold the high-voltage winding preform 800 sleeved on the core mold 600 to obtain the high-voltage winding. The core mold clamping assembly 420 can adopt a known structure, as long as it can clamp the core mold 600 so that the position of the core mold 600 relative to the core mold clamping assembly 420 is fixed, and this application does not limit it.

[0068] The release assembly 430 includes a retaining ring 431, a clamping member 432, and a first driving member 433. The retaining ring 431 is annular and is used to fit around the outer periphery of the mandrel 600 and abut against the end of the high-voltage winding preform 800. The clamping member 432 includes a second driving member 4321 and two opposing clamping portions 4322. The second driving member 4321 drives the two clamping portions 4322 to move closer or further apart to clamp or release the retaining ring 431. After the clamping member 432 clamps the retaining ring 431, the first driving member 433 drives the clamping member 432 to move axially along the mandrel 600, thereby causing the retaining ring 431 and the high-voltage winding preform 800 abutting against the retaining ring 431 to move axially away from the mandrel clamping assembly 420 to release the high-voltage winding preform 800 fitted on the mandrel 600.

[0069] See Figure 1 , Figure 2 , Figure 7 and Figure 8 This application also provides a method for manufacturing high-voltage windings using the above-mentioned high-voltage winding production line 10, comprising the following steps:

[0070] Step 1: The preheating mechanism 100 preheats the high-voltage winding preform 800. By driving the carrier frame 320 on the first support frame 310 to move along the positive X direction, the high-voltage winding preform 800 can be transported to the preheating mechanism 100 for preheating. Here, the positive X direction is the direction away from the injection molding machine 200 along the X direction.

[0071] Step 2: The feeding mechanism 300 conveys the preheated high-voltage winding preform 800 to the injection molding machine 200. In the second embodiment, the preheated high-voltage winding preform 800 can be conveyed to the injection molding machine 200 by driving the carrier frame 320 on the first support frame 310 to move in the negative X direction. In the first embodiment, the preheated high-voltage winding preform 800 can be transported to the second support frame 330 by using a crane or trolley or other handling equipment. The preheated high-voltage winding preform 800 can be conveyed to the injection molding machine 200 by driving the carrier frame 320 on the second support frame 330 to move in the negative X direction. Here, the negative X direction is the direction along the X direction towards the injection molding machine 200.

[0072] Step 3: The injection molding machine 200 injects the preheated high-voltage winding preform 800.

[0073] Step 4: The feeding mechanism 300 transports the injected high-voltage winding preform 800 to the operating station. In the second embodiment, the injected high-voltage winding preform 800 can be transported to the operating station by driving the carrier 320 on the first support frame 310 to move in the positive X direction. In the first embodiment, the injected high-voltage winding preform 800 can be transported to the operating station by driving the carrier 320 disposed on the second support frame 330 to move in the positive X direction.

[0074] Step 5: The demolding mechanism 400 receives the high-voltage winding preform 800 from the operating station and demolds it to obtain the high-voltage winding. The high-voltage winding preform 800 on the operating station can be transported to the demolding mechanism 400 for demolding using a crane or trolley or other handling equipment.

[0075] Optionally, according to some embodiments of this application, before the preheating mechanism 100 preheats the high-voltage winding preform 800, the process further includes: a spraying mechanism spraying a coupling agent onto the outer periphery of the high-voltage winding preform 800. Specifically, the spraying mechanism sprays the coupling agent onto the outer periphery of the high-voltage winding preform 800 at the spraying station of the first support frame 310.

[0076] After the demolding mechanism 400 receives the high-voltage winding preform 800 from the self-operating station and demolds it to obtain the high-voltage winding, the process further includes: a glue-applying mechanism 500 applying glue to any defects in the demolded high-voltage winding preform 800. The demolded high-voltage winding preform 800 can be transported to the glue-applying mechanism 500 using a crane or trolley for glue application.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A high-voltage winding production line, characterized in that, include: A preheating mechanism for preheating high-voltage winding preforms, an injection machine for injecting the preheated high-voltage winding preforms, a feeding mechanism, a demolding mechanism, a glue filling mechanism, and a disassembly and positioning plate support frame. The feeding mechanism is used to transport the preheated high-voltage winding preform to the injection molding machine, and can also transport the injected high-voltage winding preform to the operating station. The demolding mechanism is used to receive the high-voltage winding preform from the operating station and demold the high-voltage winding preform to obtain the high-voltage winding. The preheating mechanism, the feeding mechanism, and the demolding mechanism are all located on the same side of the injection molding machine; the feeding mechanism and the demolding mechanism are arranged sequentially in the Y direction. The feeding mechanism includes a first support frame, a second support frame, and two support frames for supporting the high-voltage winding preform. The two support frames are movably mounted on the first support frame and the second support frame respectively along the X direction. The preheating mechanism is mounted on the first support frame. The second support frame is mounted at the feed port of the injection molding machine. The first support frame, the second support frame, and the demolding mechanism are arranged parallel to each other in the Y direction. The first support frame includes a spraying station, and the carrier frame on the first support frame can transport the high-voltage winding preform to the spraying station so that the spraying mechanism can spray coupling agent onto the high-voltage winding preform and transport the sprayed high-voltage winding preform to the preheating mechanism for preheating. The second support frame is used to receive the preheated high-voltage winding preform; the carrier frame disposed on the second support frame can transport the preheated high-voltage winding preform to the injection molding machine, and can transport the injected high-voltage winding preform to the operating station; The first support frame, the second support frame, and the demolding mechanism are all arranged along the X direction and are equally spaced in the Y direction. The high-voltage winding preform is placed along the X direction during operation and transportation. The high-voltage winding prefabricated component is mounted on the support frame via a core mold. A first anti-rotation component is provided on the core mold, and an installation groove and a second anti-rotation component are provided on the support frame. The core mold is disposed in the mounting groove, and the first anti-rotation component and the second anti-rotation component cooperate to prevent the core mold from rotating relative to the mounting groove; The glue-applying mechanism is used to apply glue to the high-voltage winding preform after demolding to obtain the high-voltage winding; the glue-applying mechanism is located at the end of the demolding mechanism away from the injection molding machine; The disassembly positioning plate support frame is used to support the high voltage winding prefabricated component on which the positioning plate is installed, and the positioning plate is used to snap-fit ​​and connect with the injection mold of the injection machine. The disassembly positioning plate support frame is located on the side of the demolding mechanism away from the injection molding machine.

2. The high-voltage winding production line according to claim 1, characterized in that, The core mold is provided with a limiting member, which can abut against one side of the mounting groove to limit the position of the core mold relative to the support frame.

3. A method for manufacturing high-voltage windings using a high-voltage winding production line as described in any one of claims 1 to 2, characterized in that, Includes the following steps: The preheating mechanism preheats the high-voltage winding preform; The feeding mechanism delivers the preheated high-voltage winding preform to the injection molding machine; The injection molding machine injects the preheated high-voltage winding preform; The feeding mechanism transports the injected high-voltage winding preform to the operating station; The demolding mechanism receives the high-voltage winding preform from the operating station, demolds it, and obtains the high-voltage winding.

4. The method for preparing a high-voltage winding according to claim 3, characterized in that, Before the step of the preheating mechanism preheating the high-voltage winding preform, the method further includes: a spraying mechanism spraying a coupling agent onto the outer periphery of the high-voltage winding preform; And / or, After the demolding mechanism receives the high-voltage winding preform from the operating station and demolds it to obtain the high-voltage winding, the process further includes: a glue-applying mechanism applying glue to the defects in the demolded high-voltage winding preform.

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