Insulating cylinder roll-dipping winding device for dry-type transformer

Abstract

The utility model discloses an insulating cylinder roll-dipping winding device for a dry-type transformer. The insulating cylinder roll-dipping winding device comprises a damping cloth releasing machine, a dipping tank and a cloth rolling machine. The damping cloth placing machine comprises a rack, the rack is provided with a high-order frame and a low-order frame, the high-order frame is provided with a cloth placing roller, a damping device and a damping roller are arranged in the middle of the low-order frame, and a combined roller is arranged on the upper portion of the low-order frame. The material soaking tank is located beside the damping cloth placing machine, and the discharging end is matched with the roller type extrusion roller. The cloth rolling machine is arranged beside the material soaking tank and comprises a machine base, a wind-up roller, a motor and an automatic control electric box. Through cooperation of all the components, efficient and stable production is achieved, the quality of the insulating cylinder is improved, the large-scale production requirement is met, and the production cost is reduced. According to details such as a rotating speed sensor, a pneumatic cylinder or an electric cylinder, a liquid level sensor, a liquid supplementing device, an extrusion roller with a roller pair design, a constant-temperature heating device, a winding mold and an automatic control electric box with a built-in PLC (Programmable Logic Controller), the automation, the accurate control and the adaptability of the equipment are further enhanced, the manual intervention is reduced, and the production efficiency and the product consistency are improved.

Description

Technical Field

[0001] This utility model relates to the field of insulating cylinder production technology for dry-type transformers, specifically to a device for impregnating and winding insulating cylinders, which is suitable for impregnating and winding insulating materials on insulating cylinders to improve the insulation performance and mechanical strength of the insulating cylinders. Background Technology

[0002] In the production process of dry-type transformers, the quality of the insulation cylinder directly affects the transformer's performance and safety. Traditional insulation cylinder impregnation and winding equipment has several problems: air bubbles are easily generated during resin impregnation, leading to poor impregnation and winding results; secondly, unstable tension control results in loose winding or wrinkles in the insulation material; the operation is complex, requiring professional personnel for adjustment and operation; and the winding efficiency is low, failing to meet the needs of large-scale production. These problems affect the production quality and efficiency of insulation cylinders, increase production costs, and limit the production capacity of enterprises. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an insulating cylinder roll-wound device with a reasonable structure, simple operation, high winding efficiency, and stable tension control, to overcome the shortcomings of the prior art, improve the production quality of insulating cylinders, reduce production costs, and meet the needs of large-scale production.

[0004] The dry-type transformer insulating cylinder impregnation and winding device according to a first aspect of the present invention is characterized in that it comprises:

[0005] A damping fabric feeding machine includes a frame, which includes a high-level frame and a low-level frame. A feeding roller for placing fabric rolls is installed on the high-level frame. A damping device for controlling the rotation speed of the feeding roller is installed in the middle of the low-level frame. The damping device includes a damping roller installed on the low-level frame. Several combined rollers arranged side by side are installed on the upper part of the low-level frame.

[0006] An impregnation tank is located on the side of the damping fabric feeding machine near the combined roller, including a base frame and a liquid tank located in the middle of the base frame. Lifting and pressing rollers that are parallel to each other are respectively provided on both sides of the tank for guiding the fabric feeding. A slurry roller is provided on the upper part of the tank for pressing the fabric into the interior of the liquid tank. The impregnation tank includes a discharge end and a feed end. A pressing roller for squeezing the impregnated insulating material to remove excess impregnation material is installed on one side of the discharge end.

[0007] A fabric winding machine is located on one side of the extrusion roller in the impregnation tank. It includes a machine base, on which a winding roller is mounted, and a motor for driving the winding roller to rotate. It also includes an automatic control box for driving the motor to rotate.

[0008] The dry-type transformer insulating cylinder impregnation and winding device according to the embodiments of this utility model has at least the following beneficial effects: Through the coordinated work of the damping unloading machine, the impregnation tank, and the winding machine, a highly efficient and stable insulating cylinder production process is achieved. Its beneficial effects are: the coordinated work of each component improves the production efficiency and quality of the insulating cylinder, meeting the needs of large-scale production; the automatic control box achieves precise tension control, ensuring the tightness and neatness of the insulating material winding, and improving the product qualification rate; the setting of the extrusion roller and the slurry roller ensures the treatment effect of the insulating material, meets the special process requirements of the insulating cylinder, and enhances the insulation performance and mechanical strength of the product; the overall structure is reasonable, the operation is simple, reducing labor intensity, improving production efficiency, reducing reliance on professional operators, and lowering production costs.

[0009] According to some embodiments of the present invention, the damping device includes a speed sensor for detecting the rotational speed of the damping roller, and the speed sensor is electrically connected to the automatic control box.

[0010] According to some embodiments of the present invention, pneumatic cylinders or electric cylinders for driving the lifting and pressing rollers to move up and down are respectively installed at both ends of the immersion tank.

[0011] According to some embodiments of the present invention, the liquid tank is equipped with a liquid level sensor and a liquid replenishment device, and the liquid level sensor and the liquid replenishment device are respectively connected to the automatic control box.

[0012] According to some embodiments of the present invention, the extrusion roller adopts a counter-roller design with two rollers rotating relative to each other, and the surface of the rollers is engraved with textures that can effectively prevent the insulating material from slipping.

[0013] According to some embodiments of this utility model, a constant temperature heating device is provided inside the dip roller.

[0014] According to some embodiments of the present invention, a winding die is installed on the winding roller.

[0015] According to some embodiments of this utility model, the automatic control box has a built-in PLC controller and control circuit.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0019] 100. Damped fabric feeding machine; 101. Fabric feeding roller; 102. Damping device; 103. Damping roller; 104. Combined roller; 200. Dipping tank; 201. Liquid tank; 202. Lifting and pressing roller; 203. Dipping roller; 204. Extrusion roller; 300. Fabric winding machine; 301. Rewinding roller; 302. Automatic control box. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 The dry-type transformer insulating cylinder impregnation and winding device according to the first aspect of the present invention is characterized in that it comprises:

[0025] A damping fabric feeding machine 100 includes a frame, which includes a high-level frame and a low-level frame. A feeding roller 101 for feeding fabric rolls is installed on the high-level frame. A damping device 102 for controlling the rotation speed of the feeding roller 101 is installed in the middle of the low-level frame. The damping device 102 includes a damping roller 103 installed on the low-level frame. A plurality of combined rollers 104 arranged side by side are installed on the upper part of the low-level frame.

[0026] The impregnation tank 200 is located on the side of the damping fabric feeding machine 100 near the combined roller 104. It includes a base frame and a liquid tank 201 located in the middle of the base frame. Lifting and pressing rollers 202, which are parallel to each other and are used for guiding the fabric feeding, are respectively provided on both sides of the tank. A paste-coating roller 203 is provided on the upper part of the tank for pressing the fabric into the liquid tank 201. The impregnation tank 200 includes a discharge end and a feed end. A pressing roller 204 is installed on one side of the discharge end for squeezing the impregnated insulating material to remove excess impregnation material.

[0027] The fabric rolling machine 300 is located on one side of the impregnation tank 200 and the extrusion roller 204. It includes a machine base, on which a take-up roller 301 is mounted, and a motor for driving the take-up roller 301 to rotate. It also includes an automatic control box 302 for driving the motor to rotate.

[0028] The dry-type transformer insulating cylinder impregnation and winding device according to the embodiments of this utility model has at least the following beneficial effects: Through the coordinated operation of the damping unloading machine 100, the impregnation tank 200, and the winding machine 300, a highly efficient and stable insulating cylinder production process is achieved. Its beneficial effects are: the coordinated operation of each component improves the production efficiency and quality of the insulating cylinder, meeting the needs of large-scale production; the automatic control box 302 achieves precise tension control, ensuring the tightness and neatness of the insulating material winding, and improving the product qualification rate; the setting of the extrusion roller 204 and the slurry roller 203 ensures the treatment effect of the insulating material, meets the special process requirements of the insulating cylinder, and enhances the insulation performance and mechanical strength of the product; the overall structure is reasonable, the operation is simple, reducing labor intensity, improving production efficiency, reducing reliance on professional operators, and lowering production costs.

[0029] According to some embodiments of this utility model, the damping device 102 includes a speed sensor for detecting the rotational speed of the damping roller 103, and the speed sensor is electrically connected to the automatic control box 302. By monitoring the rotational speed of the damping roller 103 in real time through the speed sensor and feeding the data back to the automatic control box 302, precise control of the fabric unwinding speed is achieved. The automatic control box 302 can adjust the resistance of the damping device 102 in a timely manner based on the rotational speed information, ensuring that the fabric maintains stable tension during unfolding and effectively preventing uneven winding caused by fabric slack or excessive tension. This precise tension control not only improves the stability of the production process but also enhances product quality and consistency, reduces the defect rate caused by tension fluctuations, thereby enhancing the reliability and market competitiveness of the entire insulating cylinder impregnation and winding device.

[0030] According to some embodiments of this utility model, pneumatic or electric cylinders are respectively installed at both ends of the impregnation tank 200 to drive the lifting and pressing rollers 202 to move up and down. The pneumatic or electric cylinders can precisely control the height position of the lifting and pressing rollers 202, thereby adapting to insulating materials of different thicknesses and specifications, ensuring that the fabric maintains appropriate tension and position during the impregnation process. Through pneumatic or electric drive, the adjustment of the lifting and pressing rollers 202 is faster and more accurate, improving the automation level and ease of operation of the equipment. This precise control helps prevent the fabric from becoming loose or misaligned during the impregnation process, ensuring that the fabric is fully and evenly impregnated with the treatment liquid, thereby improving the quality and performance of the insulating cylinder. Furthermore, the use of pneumatic or electric cylinders allows the equipment to better adapt to the needs of continuous production, reducing manual intervention, lowering labor intensity, and improving production efficiency.

[0031] According to some embodiments of this utility model, the liquid tank 201 is equipped with a liquid level sensor and a liquid replenishment device, which are respectively connected to the automatic control box 302. The liquid level sensor can monitor the liquid level in the liquid tank 201 in real time and feed the data back to the automatic control box 302. When the liquid level is lower than a preset value, the automatic control box 302 can promptly activate the liquid replenishment device to replenish the impregnation material in the liquid tank 201, ensuring the continuity and stability of the impregnation process. This automated liquid replenishment method not only improves the automation level of the equipment but also effectively avoids production interruptions caused by insufficient liquid level, thereby improving production efficiency. At the same time, by precisely controlling the liquid level, the wetting effect of the insulating material is guaranteed, thereby improving the quality and performance of the insulating cylinder. In addition, this design reduces manual intervention, lowers labor intensity, and improves the reliability and safety of the production process.

[0032] According to some embodiments of this utility model, the extrusion roller 204 adopts a counter-roller design with two rollers rotating relative to each other. The surface of the rollers is engraved with textures that effectively prevent the insulating material from slipping. This counter-roller design enables uniform and stable extrusion of the impregnated insulating material, effectively removing excess impregnation material and ensuring a uniform liquid content. The anti-slip texture on the roller surface increases the friction between the rollers and the insulating material, preventing slippage or displacement during extrusion and ensuring the accuracy and stability of the extrusion effect. This design not only improves the processing quality of the insulating material but also enhances the reliability of equipment operation, reduces the defect rate caused by material slippage, and further improves the production efficiency and automation level of the entire insulating cylinder impregnation and winding device.

[0033] According to some embodiments of this utility model, a constant temperature heating device is provided inside the slurry dipping roller 203. This device maintains the slurry on the surface of the roller 203 at its optimal viscosity, ensuring a uniform coating of slurry on the insulating material surface, thus improving the performance and molding effect of the insulating material. Precise temperature control ensures the stability and consistency of the slurry, avoiding viscosity changes caused by temperature fluctuations, thereby improving the quality and performance of the insulating cylinder. Furthermore, the use of the constant temperature heating device reduces slurry waste, lowers production costs, and increases production efficiency.

[0034] According to some embodiments of this utility model, a winding die is installed on the winding roller 301. The winding die can effectively improve the stability and accuracy of the winding process, ensuring that the insulating material is neatly arranged during winding, avoiding wrinkles or misalignment, thereby improving the appearance quality and electrical performance of the product. The use of the winding die can also adapt to insulating materials of different diameters and widths, enhancing the versatility and flexibility of the equipment. In addition, through coordinated operation with the automatic control box 302, the winding die can realize automated winding operation, improving production efficiency, reducing manual intervention, and further enhancing the intelligence level and market competitiveness of the entire insulating cylinder impregnation and winding device.

[0035] According to some embodiments of this utility model, the automatic control box 302 incorporates a PLC controller and control circuit. The PLC controller, as the core control unit, enables highly automated control of the entire insulating cylinder impregnation and winding device. It receives signals from various sensors, such as the speed sensor of the damping cloth unloading machine 100 and the liquid level sensor of the impregnation tank 200, and combines these with preset control logic and algorithms to precisely coordinate and control each actuator, ensuring the stability and efficiency of the entire production process. The control circuit is responsible for transmitting instructions from the PLC controller to each actuator, such as motors, pneumatic cylinders, and solenoid valves, achieving precise regulation of equipment operation. This highly integrated control system not only improves the automation level of the equipment but also enhances the reliability and stability of the system, reduces manual intervention, lowers operational difficulty and labor intensity, and further improves production efficiency and product quality.

[0036] like Figure 1 As shown, the insulating cylinder impregnation and winding equipment of this utility model has a reasonable overall layout. All components are closely connected through a precise mechanical structure and electrical control system, forming a highly efficient and stable insulating cylinder production system. During operation, the insulating material is released from the feeding roller 101, guided and tensioned by the combined roller 104, and then enters the impregnation tank 200 to saturate. Excess impregnation material is then removed by the extrusion roller 204, followed by sizing by the sizing roller 203, and finally wound onto the insulating cylinder by the winding machine 300. Throughout the process, the automatic control box 302 monitors and controls the operating status of each component in real time, ensuring the stability and efficiency of the winding process.

[0037] In actual operation, operators only need to set the relevant process parameters, such as the tension of the insulating material, winding speed, and impregnation time, on the human-machine interface of the automatic control box 302, and the equipment can automatically complete the entire production process of the insulating cylinder. For example, when producing a batch of insulating cylinders of a specific specification, the operator inputs the corresponding parameters on the control interface according to the product requirements. After receiving these parameters, the automatic control box 302 will automatically adjust the damping device 102 of the damping unloading machine 100, the height of the lifting pressure roller 202, the pressure and speed of the extrusion roller 204, the amount of slurry applied by the slurry dipping roller 203, and the speed of the winding roller 301 of the winding machine 300, to ensure that the insulating material is wound according to the set process requirements.

[0038] During the winding process, the automatic control box 302 collects data in real time through a sensor network, such as changes in the tension of the insulating material, the liquid level of the impregnating material, and its temperature. When the tension sensor detects fluctuations in the tension of the insulating material, the automatic control box 302 immediately adjusts the damping device 102 of the damping unwinding machine 100 and the rotation speed of the winding roller 301 of the winding machine 300 to restore the tension to the set range. Simultaneously, the liquid level sensor and temperature sensor feed back the liquid level and temperature information in the impregnation tank 200 to the control box. Based on this data, the control box controls the liquid replenishment system and heating device to ensure sufficient impregnation material and a suitable temperature, thereby guaranteeing the wetting effect of the insulating material.

[0039] In addition, the combined roller 104 also plays an important role in the winding process. The guide roller accurately guides the insulating material to the starting position of the take-up roller 301, preventing the insulating material from deviating; the tension adjusting roller further fine-tunes the tension of the insulating material by adjusting the winding angle and length of the insulating material on the roller, ensuring the uniformity of the tension; the flattening roller applies appropriate pressure when the insulating material is wound, eliminating any wrinkles that may occur, so that the insulating material is tightly and flatly wound on the drum.

[0040] In summary, the insulating cylinder roll-wound equipment of this utility model achieves efficient and high-quality production of insulating cylinders through the coordinated work of various components and the precise control of the automatic control box 302. It has significant technical advantages and practical value and can be widely used in the field of dry-type transformer production.

[0041] The embodiments described above with reference to the accompanying drawings have been described in detail. However, the embodiments are not limited to those described above. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. An insulating cylinder impregnation and winding device for dry-type transformers, characterized in that, include: A damping fabric feeding machine (100) includes a frame, the frame including a high-level frame and a low-level frame, a feeding roller (101) for feeding fabric rolls is installed on the high-level frame, a damping device (102) for controlling the rotation speed of the feeding roller (101) is installed in the middle of the low-level frame, the damping device (102) includes a damping roller (103) installed on the low-level frame, and a plurality of combined rollers (104) arranged side by side are installed on the upper part of the low-level frame; The impregnation tank (200) is located on the side of the damping cloth feeding machine (100) near the combined roller (104), including a base frame and a liquid tank (201) located in the middle of the base frame. Lifting and pressing rollers (202) for guiding cloth conveying and parallel to each other are respectively provided on both sides of the material tank. A paste-coating roller (203) for pressing the cloth into the interior of the liquid tank (201) is provided on the upper part of the material tank. The impregnation tank (200) includes a discharge end and a feed end. A pressing roller (204) for squeezing the impregnated insulating material to remove excess impregnation material is installed on one side of the discharge end. The fabric rolling machine (300) is located on one side of the extrusion roller (204) of the impregnation tank (200), and includes a base on which a take-up roller (301) is mounted, and a motor for driving the take-up roller (301) to rotate, and also includes an automatic control box (302) for driving the motor to rotate.

2. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: The damping device (102) includes a speed sensor for detecting the rotational speed of the damping roller (103), and the speed sensor is electrically connected to the automatic control box (302).

3. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: At each end of the immersion tank (200), a pneumatic cylinder or an electric cylinder is installed to drive the lifting and pressing roller (202) to move up and down.

4. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: The liquid tank (201) is equipped with a liquid level sensor and a liquid replenishment device, and the liquid level sensor and the liquid replenishment device are respectively connected to the automatic control box (302).

5. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: The extrusion roller (204) adopts a two-roller design with two rollers rotating relative to each other, and the surface of the rollers is engraved with textures that can effectively prevent the insulating material from slipping.

6. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: The dip roller (203) is equipped with a constant temperature heating device.

7. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: A winding die is installed on the winding roller (301).

8. The insulating cylinder impregnation and winding device for dry-type transformers according to claim 1, characterized in that: The automatic control box (302) has a built-in PLC controller and control circuit.

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