Insulator silica gel umbrella skirt forming device with self-leveling structure

Abstract

The utility model discloses an insulator silica gel umbrella skirt forming device with a self-leveling structure. The insulator silica gel umbrella skirt forming device comprises a structure base, a silica gel injection machine, a winding pipe fixing device and a self-leveling mechanism, the silica gel injection machine is a segmented silica gel injection machine, and the winding pipe fixing device comprises a guide frame, a sliding frame and a self-leveling mechanism. A linear guide rail is arranged on the guide frame; the silica gel injection machine is fixedly arranged at the middle section position of the guide frame; a winding pipe fixing part is arranged on the sliding frame; the self-leveling mechanism comprises two groups of sensor assemblies, a lifting device and a control unit, and the two groups of sensor assemblies are respectively positioned on the winding pipe fixing part and the glue injection machine; the two lifting devices are arranged on the front side and the rear side of the silica gel injection machine correspondingly and used for adjusting the included angle between the axis of the sliding frame and the axis of the silica gel injection machine according to the detection result of the sensor assembly. The composite insulator forming device is simple in structure, convenient to operate, high in forming quality, safe, reliable, suitable for composite insulator production and capable of guaranteeing safety and stability of an electric power system.

Description

Technical Field

[0001] This utility model relates to composite insulator technology in the field of electrical technology, specifically to an insulator silicone shed molding device with a self-leveling structure. Background Technology

[0002] In power systems, insulators, as specialized insulating components, are an indispensable part of high-voltage transmission lines. They primarily support the conductors in overhead transmission lines, increasing creepage distance and preventing current from returning to ground. Furthermore, insulators must withstand the potential difference between the conductors and the towers to ensure the safe and stable operation of the transmission line. Therefore, the performance of insulators directly affects the safety and stability of the transmission line.

[0003] Composite insulators, as a type of insulator, typically consist of a wound tube and silicone sheds molded onto its surface. The silicone sheds not only provide insulation but also offer protection against flashover and UV radiation. To meet the performance requirements of power systems, the molding quality of the silicone sheds is crucial. For some large-diameter composite insulators, the silicone sheds are often molded using a segmented molding method, where silicone is injected into sections of the wound tube and then cured. This method usually requires fixing the wound tube to a guide frame and moving the tube to form different shed sections. However, due to the large size and weight of the wound tube, its stability during molding and movement becomes a technical challenge. During the injection molding process, the wound tube is prone to slight axial misalignment as it moves on the guide frame. This misalignment can lead to molding defects at the ends of the silicone sheds, such as uneven shed end faces or weak adhesion between the sheds and the wound tube, thus affecting the overall performance and service life of the composite insulator.

[0004] Therefore, it is necessary to improve the existing silicone umbrella skirt injection molding equipment to effectively reduce or eliminate axial offset of the winding tube during molding and movement while ensuring production efficiency, thereby improving the molding quality of the silicone umbrella skirt and ensuring the performance and reliability of the composite insulator. Utility Model Content

[0005] The technical problem solved by this utility model is to provide an insulator silicone shed molding device with a self-leveling structure. This device can effectively control the positional stability of the winding tube during molding and movement, reduce or eliminate molding defects, improve the molding quality of the silicone shed, and thus improve the overall performance and service life of the composite insulator, thereby solving the defects in the above-mentioned technical background.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] An insulator silicone shed molding device with a self-leveling structure includes a structural base, a silicone injection machine, a winding tube fixing device, and a self-leveling mechanism.

[0008] The silicone dispensing machine is a segmented dispensing machine, used for segmented dispensing of silicone onto the winding tube to be processed.

[0009] The winding tube fixing device includes a guide frame, a sliding frame, and a self-leveling mechanism; the guide frame is fixed on the structural base, and a linear guide rail is provided on the guide frame; the silicone dispensing machine is fixedly installed in the middle section of the guide frame through the structural base; the sliding frame is slidably connected to the linear guide rail, and a winding tube fixing part is provided on the sliding frame;

[0010] The self-leveling mechanism includes a sensor assembly, a lifting device, and a control unit; the sensor assembly includes a first sensor disposed on the winding tube fixing part and a second sensor disposed on the silicone dispensing machine, the first sensor and the second sensor being a combination of a position sensor and a coaxiality sensor; the lifting device consists of two sets, respectively disposed on the guide frame corresponding to the front and rear sides of the silicone dispensing machine, and is used to adjust the included angle between the axis of the sliding frame and the axis of the silicone dispensing machine according to the detection results of the sensor assembly.

[0011] As a further limitation, the silicone injection machine includes upper and lower half molds, each half mold having an injection port and an injection cavity inside. The two half molds can move relative to each other to clamp and fix the winding tube to be processed, and silicone is injected into the surface of the winding tube through the injection port to form a silicone umbrella skirt.

[0012] The upper and lower half-molding bodies are driven by independent cylinders or motors to achieve relative movement;

[0013] The silicone injection machine is also equipped with an auxiliary cooling system, which includes cooling pipes and a coolant circulation device. The cooling pipes are wrapped around the outside of the two half-molds of the silicone injection machine, and the coolant circulation device circulates coolant into the cooling pipes to cool the composite insulator after injection during the silicone curing process.

[0014] As a further limitation, the structural base is also provided with a waste collection device, which is located below the silicone dispensing machine and is used to collect waste generated during the dispensing process as well as uncured silicone.

[0015] As a further limitation, the winding tube fixing part is a bracket or a chuck.

[0016] As a further limitation, the sensor assembly also includes a third sensor, which is disposed on the sliding frame and is used to detect the feeding state of the sliding frame on the guide frame.

[0017] As a further limitation, the control unit is equipped with an audible and visual alarm device. When the sensor signal received by the control unit exceeds a set threshold, the control unit controls the equipment to stop abruptly, and the audible and visual alarm device issues an alarm.

[0018] As a further limitation, of the two sets of lifting devices, one set is a single lifting device unit that rests against the central axis on one side of the sliding frame via a hinge support; while the other set consists of two lifting device units that rest against both sides of the central axis on the other side of the sliding frame via hinge supports.

[0019] The lifting device unit can be a hydraulic lifting device or an electrically controlled lifting device;

[0020] The lifting device unit is also equipped with a position feedback sensor to monitor the movement position and height of the lifting device unit in real time.

[0021] As a further limitation, the lifting device is also equipped with a manual adjustment device.

[0022] Beneficial effects: The insulator silicone umbrella skirt molding device with self-leveling structure of this utility model uses sensor components to monitor the relative position and coaxiality between the winding tube and the silicone injection machine in real time. The lifting device automatically adjusts the axial position of the sliding frame according to the monitoring results, realizing effective control of the positional stability of the winding tube during the silicone umbrella skirt molding process. This ensures the axial stability of the winding tube during molding and movement, and effectively reduces the occurrence of molding defects. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0024] The components include: 1. Limiting block; 2. Structural truss; 3. Guide frame; 4. Linear guide rail; 5. Front bearing support plate; 6. Sliding frame; 7. Winding tube fixing part; 8. Composite insulator winding tube; 9. Silicone umbrella skirt; 10. Silicone injection machine; 11. Rear bearing support plate; 12. Front lifting device unit I; 13. Front lifting device unit II; 14. Rear lifting device unit. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0026] See Figure 1A preferred embodiment of an insulator silicone shed molding device with a self-leveling structure is disclosed. In this embodiment, the device is used to mold silicone sheds 9 on the composite insulator winding tube 8 of a composite insulator. The silicone sheds 9 on the composite insulator winding tube 8 are molded in two stages. During the molding operation, the first half of the composite insulator winding tube 8 is first fed into the silicone injection machine 10 for the first injection molding. After the molding is completed, the second half of the composite insulator winding tube 8 is fed into the silicone injection machine 10 for the second injection molding, so as to realize the segmented molding of the silicone sheds 9 on the composite insulator winding tube 8.

[0027] In another embodiment, the device is also applicable to the molding of silicone skirts for other large-sized composite insulators that are formed three or more times. The number of times the silicone injection machine 10 works and the corresponding moving steps of the composite insulator winding tube 8 can be adjusted according to actual needs.

[0028] In this embodiment, the main body of the device is a silicone dispensing machine 10 and a winding tube fixing device. The guide frame 3 in the silicone dispensing machine 10 and the winding tube fixing device is stably assembled with a structural base (not shown) as a support structure.

[0029] In addition to the guide frame 3, the winding tube fixing device also includes a sliding frame 6 and a self-leveling mechanism. The guide frame 3 includes two parallel track rods, which are supported at the bottom by I-beams with high structural strength. The surface of the track rods is formed with linear guide rails 4. The two track rods are connected by a steel structural truss 2 to enhance the overall stability and load-bearing capacity. This gives the guide frame 3 high strength and stability, enabling it to support the entire device and withstand various external forces and its own weight during the insulator forming process.

[0030] The sliding frame 6 is slidably connected to the linear guide rail 4 and can slide smoothly along the linear guide rail 4 by external force. The sliding frame 6 is provided with a winding tube fixing part 7 for fixing the composite insulator winding tube 8. In this embodiment, the winding tube fixing part 7 is a chuck structure, which can firmly clamp both ends of the composite insulator winding tube 8, preventing the composite insulator winding tube 8 from shaking or shifting on the sliding frame 6 during processing.

[0031] The silicone injection machine 10 is a segmented injection machine, comprising upper and lower half-mold bodies. Each half-mold body has an injection port and an injection cavity on its inner side. The two half-mold bodies can move relative to each other to clamp and fix the composite insulator winding tube 8 to be processed, and silicone is injected into the surface of the composite insulator winding tube 8 through the injection port to form a silicone awning 9. The upper and lower half-mold bodies are driven by independent cylinders to achieve relative movement, thereby realizing the clamping and injection operation of the composite insulator winding tube 8.

[0032] A waste collection device is installed below the silicone dispensing machine 10 to collect waste generated during the dispensing process and uncured silicone, thereby maintaining a clean working environment and reducing waste. The waste collection device can be a collection box with a collection trough, the bottom of which can be equipped with a drain port for easy discharge of waste and uncured silicone.

[0033] The self-leveling mechanism includes a sensor assembly, a lifting device, and a control unit. The sensor assembly includes a first sensor disposed on the winding tube fixing part 7 and a second sensor disposed on the silicone dispensing machine 10. The first and second sensors are a combination of a position sensor and a coaxiality sensor, which can monitor the relative position and coaxiality between the composite insulator winding tube 8 and the silicone dispensing machine 10 in real time.

[0034] There are two sets of lifting devices, which are respectively set on the front and rear sides of the silicone dispensing machine 10 on the guide frame 3. In this embodiment, the lifting device group located on the front side of the silicone dispensing machine 10 includes two lifting device units, namely the front lifting device unit I 12 and the front lifting device unit II 13 in the figure, which are symmetrically arranged along the central axis of the guide frame 3. The tops of the front lifting device unit I 12 and the front lifting device unit II 13 are welded to the lower surface of the front bearing plate 5 through hinge supports, and are assembled on the lower surface of the structural truss 2 through the front bearing plate 5. The lifting device group located on the rear side of the silicone dispensing machine 10 only includes the rear lifting device unit 14. The rear lifting device unit 14, the front lifting device unit I 12 and the front lifting device unit II 13 are all hydraulic lifting mechanisms. The rear lifting device unit 14 passes through the central axis of the guide frame 3 and is welded to the lower surface of the rear bearing plate 11 through hinge supports at the top, and is assembled on the lower surface of the structural truss 2 through the rear bearing plate 11.

[0035] The lifting device is used to adjust the angle between the axis of the sliding frame 6 and the axis of the silicone dispensing machine 10 according to the detection results of the sensor assembly, thereby realizing the self-leveling function. Its leveling methods include front and rear leveling and left and right side leveling.

[0036] Position feedback sensors are installed at the bottom of the front lifting unit I 12, the front lifting unit II 13, and the rear lifting unit 14 to monitor the movement position and height of each lifting unit in real time, thereby ensuring the accuracy and stability of the lifting action. In addition, each lifting unit is also equipped with a manual adjustment device to facilitate manual fine-tuning when automatic adjustment cannot meet the requirements, further improving the flexibility and adaptability of the device.

[0037] In this embodiment, during the silicone umbrella skirt molding process, the composite insulator winding tube 8 is first fixed to the sliding frame 6 via the winding tube fixing part 7. The sliding frame 6 then slides along a linear guide rail, feeding the front section of the composite insulator winding tube 8 into the silicone injection station of the silicone injection machine 10. The silicone injection machine 10 completes the processes of upper molding, injection, molding, and demolding. During the upper molding and demolding processes, the movement of the upper and lower half-molds in the silicone injection machine 10 causes the composite insulator winding tube 8 with the silicone umbrella skirt 9 to return to the sliding frame 6, resulting in an external impact and slight displacement. At this time, the sensor assembly starts working. The first and second sensors respectively detect the position and coaxiality of the winding tube fixing part 7 and the silicone injection machine 10, transmitting the detection signals to the control unit. Based on the received signals, the control unit calculates and analyzes, controlling the corresponding front lifting device unit I 12 and front lifting device unit II. 13. The rear lifting device unit 14 operates to adjust the angle between the axis of the sliding frame 6 and the axis of the silicone injection machine 10, ensuring the stability of the axis of the composite insulator winding tube 8 during the molding process. This automatic adjustment mechanism greatly reduces the axis offset caused by the movement of the winding tube or the injection process, effectively improving the molding quality of the silicone umbrella skirt. After the axis is stabilized, the sliding frame 6 feeds on the linear guide rail 4, causing the rear section of the composite insulator winding tube 8 to enter the working position of the silicone injection machine 10, and then completes the process of upper mold, injection, molding, and demolding again through the silicone injection machine 10, until the molding of the silicone umbrella skirt 9 on the composite insulator winding tube 8 is completed.

[0038] In another embodiment, in order to ensure the feeding accuracy of the sliding frame 6 on the linear guide rail 4, the sensor assembly also includes a third sensor. The third sensor is set on the sliding frame 6 and is used to monitor the moving speed and position of the sliding frame 6 on the linear guide rail 4 in real time, so as to ensure that the sliding frame 6 can slide smoothly and accurately along the linear guide rail 4, thereby further improving the molding accuracy and overall quality of the silicone umbrella skirt.

[0039] In addition, the control unit is equipped with a pre-installed audible and visual alarm. Once the position or coaxiality deviation detected by the sensor components exceeds a preset threshold, the control unit will immediately trigger an emergency stop mechanism, and the audible and visual alarm will activate to alert the operator and prompt them to take appropriate measures. This design not only enhances the safety of the equipment but also facilitates timely detection and resolution of problems by the operator, ensuring the smooth operation of the production process.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that those skilled in the art will appreciate that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding device for silicone shed skirts of insulators with a self-leveling structure, characterized in that, The device includes a structural base, a silicone dispensing machine, a spiral wound tube fixing device, and a self-leveling mechanism; The silicone dispensing machine is a segmented dispensing machine; The winding tube fixing device includes a guide frame, a sliding frame, and a self-leveling mechanism; the guide frame is fixed on the structural base, and a linear guide rail is provided on the guide frame; the silicone dispensing machine is fixedly installed in the middle section of the guide frame through the structural base; the sliding frame is slidably connected to the linear guide rail, and a winding tube fixing part is provided on the sliding frame; The self-leveling mechanism includes a sensor assembly, a lifting device, and a control unit; the sensor assembly includes a first sensor disposed on the winding tube fixing part and a second sensor disposed on the silicone dispensing machine, the first sensor and the second sensor being a combination of a position sensor and a coaxiality sensor; the lifting device consists of two sets, respectively disposed on the guide frame corresponding to the front and rear sides of the silicone dispensing machine, and is used to adjust the included angle between the axis of the sliding frame and the axis of the silicone dispensing machine according to the detection results of the sensor assembly.

2. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, The silicone injection machine includes upper and lower half mold bodies. Each half mold body is provided with an injection port and has an injection cavity inside. The two half mold bodies can move relative to each other to clamp and fix the winding tube to be processed, and inject silicone into the surface of the winding tube through the injection port to form a silicone umbrella skirt.

3. The insulator silicone shed forming device with self-leveling structure according to claim 2, characterized in that, The upper and lower halves of the mold are driven by independent cylinders or motors to achieve relative movement.

4. The insulator silicone shed forming device with self-leveling structure according to claim 2, characterized in that, The silicone injection molding machine is also equipped with an auxiliary cooling system, which includes cooling pipes and a coolant circulation device. The cooling pipes are wrapped around the outside of the two half-molds of the silicone injection molding machine, and coolant is circulated into the cooling pipes through the coolant circulation device.

5. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, The base of the structure is also equipped with a waste collection device, which is located below the silicone dispensing machine.

6. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, The fixing part of the winding tube is a bracket or a chuck.

7. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, The sensor assembly also includes a third sensor, which is mounted on the sliding frame and is used to detect the feeding status of the sliding frame on the guide frame.

8. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, The control unit is equipped with an audible and visual alarm device. When the sensor signal received by the control unit exceeds the set threshold, the control unit will control the equipment to stop suddenly, and the audible and visual alarm device will sound an alarm.

9. The insulator silicone shed forming device with self-leveling structure according to claim 1, characterized in that, Of the two sets of lifting devices, one set consists of a single lifting device unit that rests against the central axis of one side of the sliding frame via a hinge support; while the other set consists of two lifting device units that rest against both sides of the central axis of the other side of the sliding frame via hinge supports.

10. The insulator silicone shed molding device with self-leveling structure according to claim 9, characterized in that, The lifting device unit is either a hydraulic lifting device or an electrically controlled lifting device, and a position feedback sensor is also installed on the lifting device unit to monitor the movement position and height of the lifting device unit in real time.

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