High-low pressure integrated pouring structure

Abstract

The invention provides a high-low pressure integrated pouring structure which comprises a middle mold and two side molds, the two side molds are a high-voltage winding mold area and a low-voltage winding mold area respectively, and each side mold comprises a driving unit, a lead screw module unit, a curvature adjusting assembly, a plurality of groups of first adjusting arms and a plurality of groups of second adjusting arms. Through the linkage design of the lead screw module unit, the first adjusting arm and the second adjusting arm, the circumference and the edge curvature of the supporting plate can be rapidly adjusted to adapt to winding structures of different sizes and shapes, and the curvature adjusting assembly is designed through a second electric telescopic rod, a gear transmission system and a rotating pull rope to adjust the curvature of the winding structure. The bending degree of the edge of the supporting plate can be accurately adjusted, the limitation of fixed design of a traditional mold is effectively avoided, the winding packaging quality and precision are ensured, the requirement for mold types is reduced through the flexible adjustable structure, special molds do not need to be designed for different windings, the mold manufacturing and replacing cost is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of transformers, and in particular to a high-low voltage integrated casting structure. Background Art

[0002] High and low voltage integrated casting structure is widely used in dry-type transformers. Its main purpose is to encapsulate the high and low voltage windings as a whole to form an integrated structure with good insulation and high mechanical strength. The high voltage winding and the low voltage winding are coated with resin materials as a whole to form an integrated structure. Casting materials with excellent insulation properties such as epoxy resin are used to encapsulate the windings to isolate air and moisture. The windings need to be placed in a special mold before casting to ensure the shape and size of the structure are accurate. According to the needs, reinforced glass fiber or other materials can be set on the outer layer of the winding to enhance the mechanical strength and impact resistance.

[0003] The mold plays an important role in the casting process. Its main functions include providing shape and size control. The mold determines the shape, size and relative position of the casting structure to ensure that the encapsulation effect of the winding and resin meets the design requirements. During the casting process, the mold helps to fix the position of the winding to prevent displacement or misalignment during casting. The structural design in the mold (such as casting holes and vents) helps to evenly distribute the casting material and avoid the generation of bubbles, ensuring that the cured material is defect-free. The mold is usually made of metal or high-strength composite materials and can be used multiple times, greatly improving the efficiency and consistency of the casting process. In modern industry, the design of the mold is crucial to the success of the casting structure, and its manufacture and maintenance are also part of the entire casting process.

[0004] Although the existing high and low voltage integrated casting structure has excellent performance in terms of insulation and mechanical strength, the characteristics of its fixed structural design result in a relatively limited scope of application of the product. In the prior art, the size and shape of most casting structures are fixed at the design stage and cannot be adjusted according to actual needs, making it difficult to adapt to a variety of application scenarios. In addition, windings of different specifications and structures need to be equipped with corresponding molds. The diversity of molds increases production costs. At the same time, the difficulty in adjusting the molds also limits the flexibility of the casting process.

[0005] Therefore, the current high-low pressure integrated casting structure has the problems of poor adaptability, unadjustable structure, and strong limitations in use, which makes it difficult to meet the requirements of modern industry for diversified and efficient production. In view of the above technical defects, designing an adjustable high-low pressure integrated casting structure can not only expand its scope of application, but also reduce production costs, improve production flexibility and equipment performance, which is a technical problem that needs to be solved urgently in the current field. Summary of the invention

[0006] The present invention aims to provide a high-low pressure integrated casting structure which can be flexibly adjusted.

[0007] To achieve the above-mentioned object, the present invention proposes the following technical solution: a high-low voltage integrated casting structure, comprising a middle mold (100) and two side molds (200), wherein the two side molds (200) are respectively a high-voltage winding mold area and a low-voltage winding mold area, and the side molds (200) include:

[0008] A driving unit (201), the driving unit (201) being used to drive and adjust the position of the supporting plate (208);

[0009] A lead screw module unit, the lead screw module unit being mounted at the output end of the drive unit (201), the lead screw module unit comprising a lead screw (202), a nut (203) and a lifting plate (204), the nut (203) being threadedly connected to the lead screw (202), and the nut (203) being rotatably disposed in the lifting plate (204) to drive the lifting plate (204) to move up and down;

[0010] A plurality of groups of first adjusting arms (205) and second adjusting arms (207), one end of the first adjusting arm (205) being movably connected to the lifting plate (204), one end of the second adjusting arm (207) being movably connected to the support plate (208), the first adjusting arm (205) and the second adjusting arm (207) being connected via a lock (206), the other end of the second adjusting arm (207) being detachably connected to the lock (206), the plurality of groups of the first adjusting arms (205) and the second adjusting arms (207) cooperating to drive the support plate (208) to move, so as to adjust the outer circumference of the side mold (200);

[0011] A curvature adjustment component (209), wherein the curvature adjustment component (209) is arranged between the second adjustment arm (207) and the support plate (208), and the curvature adjustment component (209) is used to adjust the curvature of both sides of the support plate (208).

[0012] Furthermore, in the present invention, the intermediate mold (100) also includes a screw rod (202), a nut (203) and a lifting plate (204), and also includes a sleeve (101), a plug (102) and a first electric telescopic rod (103), one end of the sleeve (101) is fixedly connected to the support plate (208), one end of the plug (102) is fixedly connected to the lifting plate (204), one end of the plug (102) passes through the sleeve (101) and is fixedly connected to the electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve (101).

[0013] Furthermore, in the present invention, the driving unit (201) is a motor, and the output end of the motor is fixedly connected to the screw rod (202).

[0014] Furthermore, in the present invention, the curvature adjustment component (209) comprises a second electric telescopic rod (2091), a transmission component (2092), a protective cover (2093), a rotating rod (2094), a pull rope (2095) and a pulling rod (2096), one end of the second electric telescopic rod (2091) is movably connected to the second adjustment arm (207), and the other end of the second electric telescopic rod (2091) is movably connected to the transmission component (2092). When the second electric telescopic rod (2091) moves, the transmission component (2092) is used to adjust the curvature of the second adjusting arm (207). The component (2092) drives the rotating rod (2094) to rotate, the transmission component (2092) is arranged on the protective cover (2093), the protective cover (2093) is fixedly connected to the middle part of the support plate (208), the rotating rod (2094) is movably connected to the middle part of the support plate (208), one end of the pull rope (2095) is fixedly connected to the rotating rod (2094), and the other end of the pull rope (2095) is fixedly connected to the pulling rod (2096), and the pulling rod (2096) is fixedly connected to the two side edges of the support plate (208).

[0015] Furthermore, in the present invention, the transmission assembly (2092) includes a toothed plate (2092-a), a return spring (2092-b), a gear (2092-c), a first bevel gear (2092-d), and a second bevel gear (2092-e); the second electric telescopic rod (2091) is movably connected to the toothed plate (2092-a); limiting rods are fixed on both sides of the toothed plate (2092-a); the ends of the limiting rods are in contact with the inner wall of the protective cover (2093); one end of the return spring (2092-b) is fixedly connected to the protective cover (2093). The other end of the return spring (2092-b) is fixedly connected to the bottom of the tooth plate (2092-a), the gear (2092-c) is meshed with the tooth plate (2092-a), the gear (2092-c) is movably connected to the protective cover (2093) through a movable shaft, the gear (2092-c) is fixedly connected to the first bevel gear (2092-d) through a transmission shaft, the first bevel gear (2092-d) is meshed with the second bevel gear (2092-e), and the second bevel gear (2092-e) is fixedly mounted on the rotating rod (2094).

[0016] Furthermore, in the present invention, it also includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit and a power supply unit, wherein the image acquisition unit is used to acquire an image of the support plate (208), the processing unit is used to process the acquired image, the processing unit transmits the image to the display unit via the wireless transmission unit for display, and the power supply unit supplies power to the electrical equipment.

[0017] Furthermore, in the present invention, the image acquisition unit is a camera, which is used to obtain an image of the support plate (208); the processing unit is a single-chip microcomputer, which is used to run a curvature calculation algorithm and perform control; the single-chip microcomputer is connected to the first electric telescopic rod (103), the electric push rod and the second electric telescopic rod (2091); the wireless transmission unit is a wifi module, which is used to transmit data to an external device; the display unit is an LCD screen, which is used to display calculation results and image processing effects in real time.

[0018] Furthermore, in the present invention, the single chip microcomputer calculates the curvature of the support plate (208) by a curvature measurement algorithm, and the curvature measurement algorithm comprises the following steps:

[0019] Step 1: Obtain a captured image, obtain a side image of the support plate (208) through a camera, and input the image into a single chip microcomputer in a grayscale format;

[0020] Step 2: Histogram equalization to enhance the contrast of the image so as to highlight the edge features of the support plate (208); using the histogram equalization algorithm, the pixel value distribution is stretched to enhance the dark and bright details:

[0021] L: pixel value range (usually 256), MN: total number of pixels in the image, h(i): cumulative number of pixels with gray value i;

[0022] Step 3: Binarization processing, converting the enhanced grayscale image into a binary image, extracting the outline of the support plate (208), selecting a suitable threshold T, setting the points with pixel values ​​higher than T to 1, and setting the points with pixel values ​​lower than T to 0;

[0023]

[0024] Step 4: Large area filtering, remove noise and background interference through morphological operations, retain only the part belonging to the support plate (208), connective domain analysis, find all connected areas, and calculate the area A of each area i ;

[0025] Area filtering, set an area threshold A min , only keep A i ≥A min area;

[0026]

[0027] Step 5: Hole filling: fill the holes in the binary image to ensure the integrity of the edge contour. This can be achieved using the seed filling method or morphological closing operation. Where S is the structural element;

[0028] Step 6: edge detection, using the Canny or Sobel algorithm to extract the side edge of the support plate (208). The Canny algorithm extracts the edge by calculating the gradient strength and direction. The extracted edge is recorded as E(x, y);

[0029] Step 7: Fit the edge curve, use linear regression or polynomial to fit the edge points, calculate the overall trend of the edge, and extract the edge point set P = {(x i ,y i )}, use quadratic polynomial to fit edge curve: y = ax 2 +bx+c, calculate a, b, c by the least squares method;

[0030] Step 8: Calculate the curvature, which is defined as the maximum deviation D between the edge curve and the ideal straight line. The ideal straight line is the straight line between the two end points L(x) = m·x+b.

[0031] Deviation calculation, D = max | y i -L(x i )|.

[0032] Furthermore, in the present invention, the single chip microcomputer runs a curvature calculation algorithm and controls the operation of the second electric telescopic rod (2091) according to the algorithm result to adjust the curvature of the edge of the support plate (208).

[0033] Furthermore, in the present invention, both ends of the pulling rod (2096) are extended to the upper and lower ends of the support plate (208), the number of the pulling ropes (2095) is not less than four, and the support plate (208) is a flexible metal plate.

[0034] Beneficial effects: The technical solution of this application has the following technical effects:

[0035] The present invention can quickly adjust the circumference and edge curvature of the support plate through the linkage design of the screw module unit and the first adjusting arm and the second adjusting arm, adapt to winding structures of different sizes and shapes, and greatly improve the scope of application. The curvature adjustment component can accurately adjust the edge curvature of the support plate through the second electric telescopic rod, gear transmission system and rotating pull rope design, effectively avoiding the limitations of traditional mold fixed design, ensuring the quality and accuracy of winding packaging, and the flexible adjustable structure reduces the demand for mold types, and there is no need to design special molds for different windings, which greatly reduces the cost of mold manufacturing and replacement and improves production efficiency.

[0036] 2. The integration of image acquisition unit, single-chip microcomputer, wireless transmission unit and display unit enables the status and curvature of the support plate to be monitored and displayed in real time. The single-chip microcomputer adjusts the shape of the support plate in real time through the curvature measurement algorithm, thereby improving the degree of automation and operational efficiency. Each functional unit adopts a modular design, which is easy to install, replace and maintain, reducing equipment downtime and improving process production efficiency. The automated adjustment and control design reduces dependence on manual operation. At the same time, precise algorithms are used to reduce errors that may be introduced by manual adjustment, thereby ensuring product consistency and reliability.

[0037] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered to be part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0038] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned from the practice of the specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, in which:

[0040] Figure 1 It is a schematic diagram of the structure of the present invention.

[0041] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0042] Figure 3 It is a schematic diagram of the local structure of the present invention.

[0043] Figure 4 It is a schematic diagram of the local structure of the present invention.

[0044] Figure 5 It is a schematic diagram of the local structure of the present invention.

[0045] Figure 6 It is a schematic diagram of the connection structure between the motor and the lead screw of the present invention. Figure 7 Schematic diagram of the system of the present invention.

[0046] In the figure, the meaning of each figure mark is as follows: 100, middle mold; 101, sleeve; 102, insert tube; 103, first electric telescopic rod; 200, side mold; 201, drive unit; 202, screw rod; 203, nut; 204, lifting plate; 205, first adjusting arm; 206, lock; 207, second adjusting arm; 208, support plate; 209, curvature adjustment assembly; 2091, second electric telescopic rod; 2092, transmission assembly; 2092-a, tooth plate; 2092-b, return spring; 2092-c, gear; 2092-d, first bevel gear; 2092-e, second bevel gear; 2093, protective cover; 2094, rotating rod; 2095, pull rope; 2096, pulling rod. DETAILED DESCRIPTION

[0047] In order to better understand the technical content of the present invention, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation. In addition, some aspects disclosed in the present invention can be used alone, or in any appropriate combination with other aspects disclosed in the present invention.

[0048] Example 1

[0049] like Figure 1-6 As shown, a high-low voltage integrated casting structure includes a middle mold 100 and two side molds 200, the two side molds 200 are respectively a high-voltage winding mold area and a low-voltage winding mold area, the side mold 200 includes a drive unit 201, a screw module unit, a curvature adjustment assembly 209 and several groups of first adjustment arms 205 and second adjustment arms 207, the drive unit 201 is a motor, the drive unit 201 is used to drive and adjust the position of a support plate 208, and the support plate 208 is a metal plate with a certain flexibility.

[0050] The screw module unit is installed at the output end of the drive unit 201. The screw module unit includes a screw rod 202, a nut 203 and a lifting plate 204. The output end of the motor is fixedly connected to the screw rod 202. The motor drive and single-chip control system are adopted to greatly reduce manual operation and improve work efficiency and adjustment accuracy. The nut 203 is threadedly connected to the screw rod 202. The nut 203 is rotatably set in the lifting plate 204 to drive the lifting plate 204 to rise and fall. Through the screw module unit and the curvature adjustment component 209, the circumference length and curvature of the side mold 200 can be adjusted dynamically with high precision to meet the packaging requirements of different windings.

[0051] One end of the first adjusting arm 205 is movably connected to the lifting plate 204, one end of the second adjusting arm 207 is movably connected to the support plate 208, the first adjusting arm 205 and the second adjusting arm 207 are connected by a lock 206, and the other end of the second adjusting arm 207 is detachably connected to the lock 206. Several groups of first adjusting arms 205 and second adjusting arms 207 cooperate to drive the support plate 208 to move, so as to adjust the outer circumference of the side mold 200. The mold has a wide adjustable range and can adapt to windings of different sizes and shapes, and has strong versatility.

[0052] The curvature adjustment component 209 is disposed between the second adjustment arm 207 and the support plate 208 , and the curvature adjustment component 209 is used to adjust the curvature of both sides of the support plate 208 .

[0053] When in use, in the initial preparation stage, the middle mold 100 and the two side molds 200 are placed in the designated position to prevent the mold barrel, and adjusted to the predetermined shape through the support plate 208. The drive unit 201 is started, and the motor drives the screw 202 to rotate, driving the nut 203 to move along the screw, and then controlling the upper and lower lifting plates 204 to move closer or closer. The side mold circumference can be adjusted, and the lifting of the lifting plate 204 is linked by several groups of first adjustment arms 205 and second adjustment arms 207 to achieve the expansion or contraction of the support plate 208, and adjust the outer circumference of the side mold 200 to meet the size requirements of different windings.

[0054] The first adjustment arm 205 and the second adjustment arm 207 are connected by a lock 206, and the detachable design facilitates maintenance and mold adjustment. The curvature adjustment component 209 is used to further adjust the curvature on both sides of the support plate 208 to ensure that the mold adapts to the non-straight characteristics of the winding. During adjustment, the second electric telescopic rod 2091 in the curvature adjustment component is started, and the rotating rod 2094 is driven to rotate through the transmission component 2092, driving the pull rope 2095 and the pulling rod 2096, so as to apply force to accurately adjust the curvature on both sides of the support plate. The image acquisition unit monitors the effect of the bending adjustment in real time, and the single-chip microcomputer controls the movement of the second electric telescopic rod according to the calculated curvature to ensure that the bending adjustment is accurate. After the casting process, after the mold adjustment is completed, the high and low voltage windings are placed in the mold, and the casting materials such as resin are injected through the casting holes on the mold, and solidified under vacuum conditions to form an integrated structure.

[0055] Example 2

[0056] This embodiment is based on the embodiment 1. In this embodiment, the middle mold 100 also includes a screw rod 202, a nut 203 and a lifting plate 204, and also includes a sleeve 101, an insert 102 and a first electric telescopic rod 103. One end of the sleeve 101 is fixedly connected to the support plate 208, one end of the insert 102 is fixedly connected to the lifting plate 204, one end of the insert 102 penetrates into the sleeve 101 and is fixedly connected to the electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve 101. When in use, the first electric telescopic rod 103 can drive the side molds 200 on both sides to approach or move away from the middle mold 100. At the same time, the electric push rod can drive the sleeve 101 to slide on the insert 102 to adjust with the side mold 200.

[0057] In this embodiment, the curvature adjustment component 209 includes a second electric telescopic rod 2091, a transmission component 2092, a protective cover 2093, a rotating rod 2094, a pull rope 2095 and a pulling rod 2096. One end of the second electric telescopic rod 2091 is movably connected to the second adjustment arm 207, and the other end of the second electric telescopic rod 2091 is movably connected to the transmission component 2092. When the second electric telescopic rod 2091 moves, the rotating rod 2094 is driven to rotate through the transmission component 2092. Component 2092 is arranged on the protective cover 2093, the protective cover 2093 is fixedly connected to the middle part of the support plate 208, the rotating rod 2094 is movably connected to the middle part of the support plate 208, one end of the pull rope 2095 is fixedly connected to the rotating rod 2094, and the other end of the pull rope 2095 is fixedly connected to the pulling rod 2096, and the pulling rod 2096 is fixedly connected to the two side edges of the support plate 208, and the two ends of the pulling rod 2096 are extended to the upper and lower ends of the support plate 208, and the number of the pull ropes 2095 is not less than four.

[0058] The transmission assembly 2092 includes a toothed plate 2092-a, a return spring 2092-b, a gear 2092-c, a first bevel gear 2092-d, and a second bevel gear 2092-e. The second electric telescopic rod 2091 is movably connected to the toothed plate 2092-a. Limiting rods are fixed on both sides of the toothed plate 2092-a. The ends of the limiting rods are in contact with the inner wall of the protective cover 2093. One end of the return spring 2092-b is fixedly connected to the protective cover 2093. The return spring The other end of 2092-b is fixedly connected to the bottom of the tooth plate 2092-a, the gear 2092-c is meshed with the tooth plate 2092-a, the gear 2092-c is movably connected to the protective cover 2093 through a movable shaft, the gear 2092-c is fixedly connected to the first bevel gear 2092-d through a transmission shaft, the first bevel gear 2092-d is meshed with the second bevel gear 2092-e, and the second bevel gear 2092-e is fixedly mounted on the rotating rod 2094.

[0059] When this embodiment is used, in the initial preparation stage, the middle mold 100 and the two side molds 200 are placed in the designated position to prevent the mold barrel from being pressed, and are adjusted to a predetermined shape through the support plate 208. The drive unit 201 is started, and the motor drives the screw rod 202 to rotate, driving the nut 203 to move along the screw rod. When the two lifting plates 204 are driven to approach, the lifting plates 204 drive the first adjustment arm 205 and the second adjustment arm 207 to tilt, and the two second adjustment arms 207 respectively drive the second electric telescopic rod 2091 to move. At this time, the second electric telescopic rod can be temporarily stopped, and the second electric telescopic rod 2091 drives the tooth plate 2092-a to slide in the protective cover 2093, and the tooth plate 2092-a moves. -a drives gear 2092-c to rotate, gear 2092-c drives the first bevel gear 2092-d to rotate, the first bevel gear 2092-d drives the second bevel gear 2092-e to rotate, the second bevel gear 2092-e drives the rotating rod 2094 to rotate, the rotating rod 2094 drives multiple pull ropes 2095 on both sides to move, the other end of the pull rope 2095 is fixedly connected to the pulling rod 2096, and the pulling rod 2096 drives the support plate 208 with a certain flexibility to bend.

[0060] When the curvature of the support plate 208 needs to be electrically adjusted, the second electric telescopic rod 2091 is started to drive the tooth plate 2092-a to move. The circumference of the side mold can be adjusted to achieve the expansion or contraction of the support plate 208 and adjust the circumference of the outer circumference of the side mold 200 to meet the size requirements of different windings.

[0061] When the curvature of the support plate 208 is electrically adjusted, the following structure can be used for automatic identification and adjustment. The specific structure also includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit and a power supply unit. The image acquisition unit is used to acquire the image of the support plate 208, the processing unit is used to process the acquired image, the processing unit transmits the image to the display unit through the wireless transmission unit for display, and the power supply unit supplies power to the electrical equipment.

[0062] In this embodiment, the image acquisition unit is a camera, which is used to obtain the image of the support plate 208. The processing unit is a single-chip microcomputer, which is used to run the curvature calculation algorithm and control it. The single-chip microcomputer is connected to the first electric telescopic rod 103, the electric push rod and the second electric telescopic rod 2091. The wireless transmission unit is a wifi module, which is used to transmit data to an external device. The display unit shown is an LCD screen, which is used to display the calculation results and image processing effects in real time.

[0063] In this embodiment, the single chip microcomputer calculates the curvature of the support plate 208 through a curvature measurement algorithm, and the curvature measurement algorithm includes the following steps:

[0064] Step 1: Obtain a captured image, obtain a side image of the support plate 208 through a camera, and input the image into the single chip microcomputer in grayscale format;

[0065] Step 2: Histogram equalization is used to enhance the contrast of the image so as to highlight the edge features of the support plate 208; the pixel value distribution is stretched using a histogram equalization algorithm to enhance the details of the dark and bright parts:

[0066] L: pixel value range (usually 256), MN: total number of pixels in the image, h(i): cumulative number of pixels with gray value i;

[0067] Step 3: Binarization processing, converting the enhanced grayscale image into a binary image, extracting the outline of the support plate (208), selecting a suitable threshold T, setting the points with pixel values ​​higher than T to 1, and setting the points with pixel values ​​lower than T to 0;

[0068]

[0069] Step 4: Large area filtering, remove noise and background interference through morphological operations, retain only the part belonging to the support plate (208), connective domain analysis, find all connected areas, and calculate the area A of each area i ;

[0070] Area filtering, set an area threshold A min , only keep A i ≥A min area;

[0071]

[0072] Step 5: Hole filling: fill the holes in the binary image to ensure the integrity of the edge contour. This can be achieved using the seed filling method or morphological closing operation. Where S is the structural element;

[0073] Step 6: Edge detection, using the Canny or Sobel algorithm to extract the side edge of the support plate 208. The Canny algorithm extracts the edge by calculating the gradient strength and direction. The extracted edge is recorded as E(x, y);

[0074] Step 7: Fit the edge curve, use linear regression or polynomial to fit the edge points, calculate the overall trend of the edge, and extract the edge point set P = {(x i ,y i )}, use quadratic polynomial to fit edge curve: y = ax 2 +bx+c, calculate a, b, c by the least squares method;

[0075] Step 8: Calculate the curvature, which is defined as the maximum deviation D between the edge curve and the ideal straight line. The ideal straight line is the straight line between the two end points L(x) = m·x+b.

[0076] Deviation calculation, D = max | y i -L(x i )|.

[0077] In this embodiment, the single chip microcomputer runs a curvature calculation algorithm and controls the operation of the second electric telescopic rod 2091 according to the algorithm result to adjust the curvature of the edge of the support plate 208, thereby realizing automatic electric adjustment of the curvature of the support plate 208. The curvature of the edge of the support plate can be accurately adjusted, effectively avoiding the limitations of the traditional mold fixing design, and ensuring the quality and accuracy of the winding packaging.

[0078] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A high-low voltage integrated casting structure, comprising a middle mold (100) and two side molds (200), wherein the two side molds (200) are respectively a high-voltage winding mold area and a low-voltage winding mold area, characterized in that: The side mold (200) comprises: A driving unit (201), the driving unit (201) being used to drive and adjust the position of the supporting plate (208); A lead screw module unit, the lead screw module unit being mounted at the output end of the drive unit (201), the lead screw module unit comprising a lead screw (202), a nut (203) and a lifting plate (204), the nut (203) being threadedly connected to the lead screw (202), and the nut (203) being rotatably disposed in the lifting plate (204) to drive the lifting plate (204) to move up and down; A plurality of groups of first adjusting arms (205) and second adjusting arms (207), one end of the first adjusting arm (205) being movably connected to the lifting plate (204), one end of the second adjusting arm (207) being movably connected to the support plate (208), the first adjusting arm (205) and the second adjusting arm (207) being connected via a lock (206), the other end of the second adjusting arm (207) being detachably connected to the lock (206), the plurality of groups of the first adjusting arms (205) and the second adjusting arms (207) cooperating to drive the support plate (208) to move, so as to adjust the outer circumference of the side mold (200); A curvature adjustment component (209), wherein the curvature adjustment component (209) is arranged between the second adjustment arm (207) and the support plate (208), and the curvature adjustment component (209) is used to adjust the curvature of both sides of the support plate (208).

2. A high and low pressure integrated casting structure according to claim 1, characterized in that: The intermediate mold (100) also includes a screw rod (202), a nut (203) and a lifting plate (204), and also includes a sleeve (101), an insert pipe (102) and a first electric telescopic rod (103), one end of the sleeve (101) is fixedly connected to the support plate (208), one end of the insert pipe (102) is fixedly connected to the lifting plate (204), one end of the insert pipe (102) passes through the sleeve (101) and is fixedly connected to the electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve (101).

3. The high-low pressure integrated casting structure according to claim 1, characterized in that: The driving unit (201) is a motor, and the output end of the motor is fixedly connected to the screw rod (202).

4. The high-low pressure integrated casting structure according to claim 1, characterized in that: The curvature adjustment component (209) comprises a second electric telescopic rod (2091), a transmission component (2092), a protective cover (2093), a rotating rod (2094), a pull rope (2095) and a pulling rod (2096); one end of the second electric telescopic rod (2091) is movably connected to the second adjustment arm (207); the other end of the second electric telescopic rod (2091) is movably connected to the transmission component (2092); when the second electric telescopic rod (2091) moves, the transmission component (2092) ) drives the rotating rod (2094) to rotate, the transmission assembly (2092) is arranged on the protective cover (2093), the protective cover (2093) is fixedly connected to the middle part of the support plate (208), the rotating rod (2094) is movably connected to the middle part of the support plate (208), one end of the pull rope (2095) is fixedly connected to the rotating rod (2094), and the other end of the pull rope (2095) is fixedly connected to the pulling rod (2096), and the pulling rod (2096) is fixedly connected to the two side edges of the support plate (208).

5. The high-low pressure integrated casting structure according to claim 4, characterized in that: The transmission assembly (2092) includes a toothed plate (2092-a), a return spring (2092-b), a gear (2092-c), a first bevel gear (2092-d), and a second bevel gear (2092-e). The second electric telescopic rod (2091) is movably connected to the toothed plate (2092-a). Limiting rods are fixed on both sides of the toothed plate (2092-a). The ends of the limiting rods are in contact with the inner wall of the protective cover (2093). One end of the return spring (2092-b) is fixedly connected to the protective cover (2093). The other end of the spring (2092-b) is fixedly connected to the bottom of the tooth plate (2092-a), the gear (2092-c) is meshed with the tooth plate (2092-a), the gear (2092-c) is movably connected to the protective cover (2093) through a movable shaft, the gear (2092-c) is fixedly connected to the first bevel gear (2092-d) through a transmission shaft, the first bevel gear (2092-d) is meshed with the second bevel gear (2092-e), and the second bevel gear (2092-e) is fixedly mounted on the rotating rod (2094).

6. The high-low pressure integrated casting structure according to claim 5, characterized in that: It also includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit and a power supply unit. The image acquisition unit is used to acquire an image of the support plate (208). The processing unit is used to process the acquired image. The processing unit transmits the image to the display unit via the wireless transmission unit for display. The power supply unit supplies power to the electrical equipment.

7. The high-low pressure integrated casting structure according to claim 6, characterized in that: The image acquisition unit is a camera, which is used to acquire an image of the support plate (208); the processing unit is a single-chip microcomputer, which is used to run a curvature calculation algorithm and perform control; the single-chip microcomputer is connected to the first electric telescopic rod (103), the electric push rod and the second electric telescopic rod (2091); the wireless transmission unit is a wifi module, which is used to transmit data to an external device; and the display unit is an LCD screen, which is used to display calculation results and image processing effects in real time.

8. The high-low pressure integrated casting structure according to claim 7, characterized in that: The single chip computer calculates the curvature of the support plate (208) by using a curvature measurement algorithm, and the curvature measurement algorithm comprises the following steps: Step 1: Obtain a captured image, obtain a side image of the support plate (208) through a camera, and input the image into a single chip microcomputer in a grayscale format; Step 2: Histogram equalization to enhance the contrast of the image so as to highlight the edge features of the support plate (208); using the histogram equalization algorithm, the pixel value distribution is stretched to enhance the dark and bright details: L: pixel value range (usually 256), MN: total number of pixels in the image, h(i): cumulative number of pixels with gray value i; Step 3: Binarization processing, converting the enhanced grayscale image into a binary image, extracting the outline of the support plate (208), selecting a suitable threshold T, setting the points with pixel values ​​higher than T to 1, and setting the points with pixel values ​​lower than T to 0; Step 4: Large area filtering, remove noise and background interference through morphological operations, retain only the part belonging to the support plate (208), connective domain analysis, find all connected areas, and calculate the area A of each area i ; Area filtering, set an area threshold A min , only keep A i ≥A min area; Step 5: Hole filling: fill the holes in the binary image to ensure the integrity of the edge contour. This can be achieved using the seed filling method or morphological closing operation. Where S is the structural element; Step 6: edge detection, using the Canny or Sobel algorithm to extract the side edge of the support plate (208). The Canny algorithm extracts the edge by calculating the gradient strength and direction. The extracted edge is recorded as E(x, y); Step 7: Fit the edge curve, use linear regression or polynomial to fit the edge points, calculate the overall trend of the edge, and extract the edge point set P = {(x i ,y i )}, use quadratic polynomial to fit edge curve: y = ax 2 +bx+c, calculate a, b, c by the least squares method; Step 8: Calculate the curvature, which is defined as the maximum deviation D between the edge curve and the ideal straight line. The ideal straight line is the straight line between the two end points L(x) = m·x+b. Deviation calculation, D = max | y i -L(x i )|.

9. The high-low pressure integrated casting structure according to claim 8, characterized in that: The single chip computer runs a curvature calculation algorithm and controls the operation of the second electric telescopic rod (2091) according to the algorithm result to adjust the curvature of the edge of the support plate (208).

10. The high-low pressure integrated casting structure according to claim 1, characterized in that: Both ends of the pulling rod (2096) extend to the upper and lower ends of the support plate (208), the number of the pulling ropes (2095) is not less than four, and the support plate (208) is a flexible metal plate.

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