Synthetic silicone rubber insulator and method of processing the same

Abstract

The application belongs to the technical field of insulator production, and particularly relates to a synthetic silicon rubber insulator and a processing method thereof. In view of the problem that too much excess silicon rubber mud is extruded on a table top in the process of manufacturing a silicon rubber insulator, resulting in serious waste of the mud and inconvenience of recycling, the following scheme is proposed, which comprises a core rod, the two ends of the core rod are reserved with end column with a diameter larger than the middle diameter, and the middle of the core rod is wrapped with a plurality of outer layer insulating strings connected in a disc shape, and the outer layer insulating strings are pressure die cast from synthetic silicon rubber material. The application can not only reserve a large space when the core rod wrapped with raw materials is placed and the synthetic silicon rubber insulator body is taken, so as to facilitate operation, but also can be supplemented by the operation of a supplementing barrel for supplementing if there is a gap in the mold cavity in the first round of pressure die casting, so as to ensure that the mold cavity is completely filled, so that the amount of silicon rubber mud extruded outside in the traditional way can be greatly reduced, and waste can be reduced.

Description

Technical Field

[0001] This invention relates to the field of insulator manufacturing technology, and in particular to a synthetic silicone rubber insulator and its processing method. Background Technology

[0002] Silicone rubber is an environmentally friendly material that is non-toxic and pollution-free, and has a long service life. Compared with other traditional insulation materials, it has better durability and pollution resistance, which is of great significance for reducing maintenance frequency and costs in long-term use. With the increasing requirements of the power industry for transmission lines and equipment, synthetic silicone rubber insulators are gradually replacing traditional ceramic insulators and have become a widely used insulation material in modern power systems.

[0003] In existing technologies, silicone rubber insulators require die-casting equipment during manufacturing. Typically, a large amount of silicone rubber clay is first wrapped around the core rod, then the entire assembly is placed in a mold, and finally, through mold closing and pressing, excess silicone rubber clay is extruded. This process not only results in a significant amount of excess silicone rubber clay overflowing each time, causing a messy work surface, but also produces a product with numerous and messy burrs, making subsequent processing complicated. Summary of the Invention

[0004] To address the technical problems of excessive silicone rubber sludge being extruded from the worktable during the current manufacturing process of silicone rubber insulators, resulting in significant waste and inconvenient recycling, this invention adopts the following technical solution:

[0005] A synthetic silicone rubber insulator includes a core rod with end posts at both ends having a diameter larger than the middle diameter. The core rod is wrapped with multiple interconnected outer insulating strings in a disc shape. The outer insulating strings are die-cast from synthetic silicone rubber material. The core rod and the outer insulating strings constitute the body of the synthetic silicone rubber insulator.

[0006] A method for processing a synthetic silicone rubber insulator, comprising the following steps:

[0007] S1. Mix all the raw materials in proportion; then put them into a mixer for thorough mixing and use. The mixer has heat preservation and viscosity adjustment functions. Then take out a portion and wrap it around the outer wall of the core rod in the shape of "candied hawthorn". The viscosity of the synthetic silicone rubber used to wrap the core rod should be moderate, not too sticky, easy to shape and not fall off as the core rod is lifted. Finally, place the whole thing in the mold groove of the lower mold in the die casting molding machine.

[0008] S2. Then control the start of the die casting molding machine to drive the upper mold to press down to complete the mold closing, that is, the initial mold closing. Under the action of gravity, there will inevitably be a small amount of gap near the top of the mold cavity.

[0009] S3. Take out another portion of the raw material and put it into the filling barrel of the die-casting molding machine. The synthetic silicone rubber material in this part can be a little thinner to facilitate injection molding. Then press down on the extrusion plate to fill the remaining gaps in the mold cavity. After the synthetic silicone rubber insulator body is cooled and formed, lift the upper mold and take out the synthetic silicone rubber insulator body.

[0010] In a preferred embodiment, the die-casting machine includes a worktable, which is rectangular in shape with its long side parallel to the X-axis. A lower mold is fixedly embedded in the center of the worktable, and two symmetrical L-shaped support frames are fixed to the upper surface of the worktable behind the lower mold. A common arc-shaped toothed rod is rotatably connected between the two L-shaped support frames, with the inner arc side of the toothed rod facing the worktable. An upper mold is fixed to the end of the arc-shaped toothed rod near the lower mold. The upper mold is a rectangular box-shaped structure with an upward opening. A mold cavity is reserved on the lower surface of the upper mold, and multiple [parts / areas] are reserved on the back side of the mold cavity (i.e., inside the rectangular box bottom). Each of the raised sections has an injection hole on its side. Multiple injection barrels are fixed at the top opening of the upper mold, and the bottom of the injection barrels has a crooked nozzle injection pipe connected to the injection hole. By setting a rear-flipping upper mold and injection barrels, not only can a large amount of space be reserved when placing the core rod that wraps the raw material and picking up the molded synthetic silicone rubber insulator body, which is convenient for operation, but also if there are still gaps in the mold cavity during the first round of die casting, the injection barrels can be used to fill the gaps, thereby ensuring that the mold cavity is completely filled. This operation can greatly reduce the amount of silicone rubber putty that is squeezed out in the traditional way, thus reducing waste.

[0011] In a preferred embodiment, two symmetrical shaft brackets are fixed to the upper surface of the workbench near the rear center, and the same short shaft is fixed between the two shaft brackets. A radial bearing is sleeved in the middle of the short shaft, and multiple radial spokes are fixed to the outer ring of the radial bearing. The other end of the spokes is fixed to the inner arc side of the arc-shaped toothed rod to improve the stability of the arc-shaped toothed rod when it rotates as a whole. A barrel frame is fixed to the outer wall of the filling barrel near the bottom end, and support legs are fixed to the lower surface of the barrel frame near the four corners.

[0012] In a preferred embodiment, a support base is fixed to the lower surface of the workbench near the edge, and a controller is provided on the upper surface of the support base near the front edge. Symmetrical fixing columns are fixed to the upper surfaces of the two L-shaped back supports near the rear junction, and a common bearing seat is fixed between the tops of the two fixing columns. An anti-slip bearing is embedded in the middle of the bearing seat, and a worm gear is rotatably connected to the middle of the anti-slip bearing. The outer arc side of the arc-shaped gear rack has worm gear teeth that mesh with the worm gear. A motor mounting base is fixed to the top of the two fixing columns on the side away from the lower mold. A geared motor is fixed to the upper surface of the motor mounting base by bolts. A pre-tightening rotating shaft is fixed between the output shaft end of the geared motor and the worm gear. Through the worm gear, the upper mold can be tightly pressed together after it is pushed into place with the lower mold.

[0013] In a preferred embodiment, the preload rotating shaft includes a main bushing fixed to the end of the output shaft of the geared motor, and a sleeve is provided at the end of the main bushing near the worm gear. A plug shaft is inserted into the sleeve, and the end of the plug shaft is fixed to the end of the worm gear and kept coaxial. Three centrally symmetrically distributed extended diameter plates are fixed on the outer circumference of the sleeve, and a return spring is fixed on the same side of each extended diameter plate. A spring baffle adapted to the corresponding return spring is provided at the end of the outer wall of the plug shaft near the main bushing.

[0014] In a preferred embodiment, a ratchet is sleeved and fixed near the bearing seat of the worm gear, and a ratchet abutment is hinged to the top of one of the fixed posts. A magnet is fixed to the side of the ratchet abutment away from the ratchet, and an electromagnet is fixed to the side of the fixed post near the lower surface of the magnet, attracting it. When it is necessary to control the ratchet abutment to disengage from the ratchet, it is only necessary to control the electromagnet to be energized.

[0015] In a preferred embodiment, the inner circumferential wall of the filling barrel is slidably connected to an extrusion plate, and a handle is reserved on the side of the extrusion plate away from the skew nozzle. When filling the mold cavity, the handle can be squeezed downwards, and when adding material to the filling barrel, the handle can be slowly pulled upwards.

[0016] In a preferred embodiment, symmetrical arc-shaped tie rods are fixed at the left and right ends of the upper mold near the front corners, and the centers of the two arc-shaped tie rods fall on the center line of the short axis. Support columns are fixed at the top of the two L-shaped back supports near the bottom of the arc-shaped tie rods, and roller seats are fixed at the top of the two support columns. Three grooved anti-detachment rollers are provided in the roller seats in a triangular arrangement to assist the upper mold in rising and falling, so as to complete the precise mold closing.

[0017] In a preferred embodiment, side ear posts are fixed to the middle of both sides of the upper mold, and hinge seats are fixed to the upper surface of the vertical plate of the L-shaped back stage near the worktable. Side pressure rods are rotatably connected to the hinge seats. The lower surface of the side pressure rods is provided with arc-shaped slots that match the positions of the corresponding side ear posts. The vertical plate of the L-shaped back stage is provided with grooves near the middle, and magnetic blocks that attract the side pressure rods are embedded in the grooves. Through the side pressure rods, manual compression can be performed to prevent the gaps from becoming too large.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. By setting up a rear-flipping upper mold and a filling barrel, not only can a large amount of space be reserved when placing the core rod that wraps the raw materials and taking out the molded synthetic silicone rubber insulator body, which is convenient for operation, but also if there are still gaps in the mold cavity during the first round of die casting, the filling barrel can be used to fill the gaps, thereby ensuring that the mold cavity is completely filled. This operation can greatly reduce the amount of silicone rubber putty that is squeezed out in the traditional way, thus reducing waste.

[0020] 2. With the pre-tightening rotating shaft, when the arc-shaped toothed rod pushes the upper mold forward and is about to complete the mold closing, it may encounter resistance. At this time, the spring baffle can reduce some of the torque, which protects the reduction motor and also generates continuous downward pressure on the silicone rubber insulator body to be pressed and formed, which helps it to form quickly and maintain good compactness of the finished product.

[0021] 3. The side pressure rods can be manually compressed to prevent the gap from becoming too large. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a synthetic silicone rubber insulator proposed in this invention;

[0023] Figure 2 This is a partial cross-sectional view of a synthetic silicone rubber insulator proposed in this invention.

[0024] Figure 3 This is a schematic diagram of the overall structure of a processing equipment for synthesizing silicone rubber insulators proposed in this invention;

[0025] Figure 4 This is a top view of a processing equipment for synthesizing silicone rubber insulators according to the present invention;

[0026] Figure 5 This invention provides a processing equipment for synthesizing silicone rubber insulators. Figure 4 Schematic diagram of the cross-sectional structure along line AA;

[0027] Figure 6This is a bottom view of a processing equipment for synthesizing silicone rubber insulators according to the present invention;

[0028] Figure 7 This is a side view of a processing equipment for synthesizing silicone rubber insulators according to the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the processing equipment for synthesizing silicone rubber insulators proposed in this invention before processing;

[0030] Figure 9 This is an assembly diagram of the filling tank in a processing equipment for synthesizing silicone rubber insulators according to the present invention;

[0031] Figure 10 This is a schematic diagram of the overall structure of the ratchet position in a processing equipment for synthesizing silicone rubber insulators according to the present invention;

[0032] Figure 11 This is an exploded view of the pre-tightening rotating shaft of a processing equipment for synthesizing silicone rubber insulators according to the present invention.

[0033] In the diagram: 1. Core rod; 2. Outer insulation string; 3. Support base; 4. Workbench; 5. Hinge base; 6. Magnetic block; 7. Support column; 8. Gear motor; 9. Fixed column; 10. Bearing seat; 11. Arc-shaped gear rack; 12. L-shaped back support; 13. Screw roller seat; 14. Arc-shaped tie rod; 15. Injection barrel; 151. Extrusion plate; 152. Offset nozzle; 16. Barrel frame; 17. Upper mold; 171. Injection hole ; 172, Side Ear Post; 18, Lower Mold; 19, Side Pressure Rod; 20, Controller; 21, Shaft Rotor; 22, Radial Bearing; 23, Spoke Rod; 24, Preload Rotating Shaft; 2401, Main Shaft Sleeve; 2402, Extension Diameter Plate; 2403, Return Spring; 2404, Spring Baffle; 2405, Insert Shaft; 25, Ratchet; 2501, Ratchet Stop Rod; 2502, Electromagnet; 26, Worm Gear. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] In this embodiment, refer to Figures 1-2 A synthetic silicone rubber insulator includes a core rod 1, with end posts at both ends of the core rod 1 having a diameter larger than the middle diameter, and the core rod 1 is wrapped with multiple outer insulating strings 2 connected in a disc shape. The outer insulating strings 2 are die-cast from synthetic silicone rubber material. The core rod 1 and the outer insulating strings 2 constitute the body of the synthetic silicone rubber insulator.

[0036] Please see Figures 3-11A method for processing synthetic silicone rubber insulators includes the following steps:

[0037] S1. Mix all the raw materials in proportion; then put them into a mixer for thorough mixing and use. The mixer has a heat preservation function and a viscosity adjustment function. Then take out a portion and wrap it around the outer wall of the core rod 1 in the shape of a "candied hawthorn". The viscosity of the synthetic silicone rubber used to wrap the core rod 1 should be moderate, not too sticky, easy to shape and not fall off as the core rod 1 is lifted. Finally, place the whole thing in the mold groove of the lower mold 18 in the die casting molding machine.

[0038] S2. Then control the start of the die casting molding machine and drive the upper mold 17 to press down to complete the mold closing, that is, the initial mold closing. Under the action of gravity, there will inevitably be a small amount of gaps near the top of the mold cavity.

[0039] S3. Take out another portion of the raw material and put it into the filling barrel 15 of the die-casting molding machine. The synthetic silicone rubber raw material in this part can be appropriately thinner to facilitate injection molding. Then press down on the extrusion plate 151 to fill the remaining gaps in the mold cavity. After the synthetic silicone rubber insulator body is cooled and formed, lift the upper mold 17 and take out the synthetic silicone rubber insulator body.

[0040] Reference Figure 3 , Figure 7 and Figure 9 The die-casting molding machine includes a worktable 4, which is rectangular in shape and has its long side parallel to the X-axis. A lower mold 18 is fixedly embedded in the middle of the worktable 4, and two symmetrical L-shaped back supports 12 are fixed on the upper surface of the worktable 4 behind the lower mold 18. The two L-shaped back supports 12 are rotatably connected to the same arc-shaped toothed rod 11. The inner arc side of the arc-shaped toothed rod 11 faces the worktable 4, and an upper mold 17 is fixed at the end of the arc-shaped toothed rod 11 near the lower mold 18. The upper mold 17 is a rectangular box-shaped structure with an upward opening. A mold cavity is reserved on the lower surface of the upper mold 17, and multiple protrusions are reserved on the back of the mold cavity (i.e., inside the rectangular box bottom). Each protrusion has an injection hole 171 on its side. Multiple injection barrels 15 are fixed at the top opening of the upper mold 17, and a crooked nozzle injection pipe 152 connected to the injection hole 171 is reserved at the bottom of the injection barrel 15.

[0041] By setting up a rear-flipping upper mold 17 and a filling barrel 15, not only can a large amount of space be reserved when placing the core rod 1 that wraps the raw materials and taking out the molded synthetic silicone rubber insulator body, which is convenient for operation, but also if there are still gaps in the mold cavity during the first round of die casting, the filling barrel 15 can be used to fill them, thereby ensuring that the mold cavity is completely filled. This operation can greatly reduce the amount of silicone rubber clay that is squeezed out in the traditional way, thus reducing waste.

[0042] Reference Figures 3-5Two symmetrical shaft brackets 21 are fixed on the upper surface of the workbench 4 near the rear center. The same short shaft is fixed between the two shaft brackets 21. A radial bearing 22 is sleeved in the middle of the short shaft. Multiple radial spokes 23 are fixed on the outer ring of the radial bearing 22. The other end of the spokes 23 is fixed on the inner arc side of the arc-shaped toothed rod 11 to improve the stability of the arc-shaped toothed rod 11 when it rotates as a whole. A barrel frame 16 is fixed on the outer wall of the filling barrel 15 near the bottom. Support legs are fixed on the lower surface of the barrel frame 16 near the four corners.

[0043] Reference Figures 5-8 A support base 3 is fixed near the edge of the lower surface of the worktable 4, and a controller 20 is set near the front edge of the upper surface of the support base 3. Two L-shaped backrests 12 are fixed with symmetrical fixed columns 9 near the rear junction of their upper surfaces, and the same bearing seat 10 is fixed between the tops of the two fixed columns 9. An anti-slip bearing is embedded in the middle of the bearing seat 10, and a worm gear 26 is rotatably connected in the middle of the anti-slip bearing. The outer arc side of the arc-shaped gear 11 is reserved with worm gear teeth that mesh with the worm gear 26. A motor mounting base is fixed near the top of the two fixed columns 9 on the side away from the lower mold 18. A reduction motor 8 is fixed to the upper surface of the motor mounting base by bolts. A pre-tightening rotating shaft 24 is fixed between the output shaft end of the reduction motor 8 and the worm gear 26. With the worm gear 26, the upper mold 17 can be tightly pressed together after it is pushed into place with the lower mold 18.

[0044] Reference Figure 7 and Figure 10 The preloaded rotating shaft 24 includes a main shaft sleeve 2401 fixed to the end of the output shaft of the geared motor 8. A sleeve is pre-installed at one end of the main shaft sleeve 2401 near the worm gear 26. A connector shaft 2405 is inserted into the sleeve, with its end fixed to the end of the worm gear 26 and coaxial. Three centrally symmetrically distributed extension diameter plates 2402 are fixed to the outer circumference of the sleeve, and a return spring 2403 is fixed to the same side of each extension diameter plate 2402. The outer wall of the connector shaft 2405 is close to the main shaft... One end of sleeve 2401 is reserved with a spring baffle 2404 that matches the corresponding reset spring 2403. When the arc-shaped toothed rod 11 pushes the upper mold 17 forward and is about to complete the mold closing, it may encounter resistance through the pre-tightened rotating shaft 24. At this time, the spring baffle 2404 can reduce some of the torque, protect the geared motor 8, and also generate continuous downward pressure on the silicone rubber insulator body to be pressed and formed, which helps it to form quickly and maintain good compactness of the finished product.

[0045] Reference Figure 5 and Figure 10A ratchet 25 is sleeved and fixed near the bearing seat 10 on the worm gear 26, and a ratchet push rod 2501 is hinged to the top of one of the fixing posts 9. A magnet is fixed to the side of the end of the ratchet push rod 2501 away from the ratchet 25, and an electromagnet 2502 that attracts the magnet is fixed to the side of the fixing post 9 near the lower surface of the magnet. When it is necessary to control the ratchet push rod 2501 to disengage from the ratchet 25, it is only necessary to control the electromagnet 2502 to be energized.

[0046] Reference Figure 5 and Figure 9 The inner circumference of the filling barrel 15 is slidably connected to the extrusion plate 151, and the side of the extrusion plate 151 away from the skew nozzle 152 is reserved with a handle. When filling the mold cavity, you only need to press the handle down, and when you need to add material to the filling barrel 15, you can slowly pull the handle up.

[0047] Reference Figure 7 and Figure 8 The upper mold 17 has symmetrical arc-shaped tie rods 14 fixed at the left and right ends near the front corners, and the centers of the two arc-shaped tie rods 14 fall on the center line of the short axis. The tops of the two L-shaped back supports 12 are fixed with support columns 7 near the bottom of the arc-shaped tie rods 14, and the tops of the two support columns 7 are fixed with roller seats 13. The roller seats 13 are equipped with three grooved anti-detachment rollers arranged in a triangular shape to assist the upper mold 17 in rising and falling, so as to complete the precise mold closing.

[0048] Reference Figure 3 and Figure 9 Side ear posts 172 are fixed to the middle of both sides of the upper mold 17, and hinge seats 5 are fixed to the upper surface of the vertical plate of the L-shaped back stage 12 near the worktable 4. Side pressure rods 19 are rotatably connected to the hinge seats 5. The lower surface of the side pressure rods 19 is provided with arc-shaped slots that match the positions of the corresponding side ear posts 172. The vertical plate of the L-shaped back stage 12 is provided with grooves near the middle, and magnetic blocks 6 that attract the side pressure rods 19 are embedded in the grooves. The side pressure rods 19 can be manually compressed to prevent the gaps from being too large.

[0049] Working principle:

[0050] Before using this device, the controller 20 lifts the upper mold 17 to make room for the core rod 1 and the wrapped base silicone rubber clay. Then, the geared motor 8 is started in reverse to perform the first round of die casting. When the arc-shaped toothed rod 11 pushes the upper mold 17 forward and is about to complete the mold closing, it may encounter resistance through the pre-tightened rotating shaft 24. At this time, the spring baffle 2404 can reduce some of the torque, protect the geared motor 8, and also generate continuous downward pressure on the silicone rubber insulator body to be pressed and formed, which helps it to form quickly and maintain good compactness of the finished product.

[0051] If there is still a gap in the mold cavity after the first round of die casting, it can be replenished by operating the replenishment barrel 15. At this time, press down on the extrusion plate 151 inside the replenishment barrel 15, and the synthetic silicone rubber raw material in the replenishment barrel 15 will be slowly squeezed into the mold cavity through the skewed nozzle injection pipe 152. After cooling and molding, the finished product can be taken out.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A processing method for synthesizing silicone rubber insulators, characterized in that, The processing method includes the following steps: S1. Mix all the raw materials in proportion; then put them into a mixer for mixing and set aside. Then take out a portion and wrap it around the outer wall of the core rod. Finally, place it in the mold groove of the lower mold in the die-casting molding machine. S2. Then control the start of the die-casting molding machine to drive the upper mold to press down to complete the mold closing; S3. Take out another portion of the raw materials and put them into the filling barrel of the die-casting molding machine. Then press down on the extrusion plate to fill the remaining gaps in the mold cavity. After the synthetic silicone rubber insulator body is cooled and formed, lift the upper mold and take out the synthetic silicone rubber insulator body. The die-casting machine includes a worktable, which is rectangular in shape and has its long side parallel to the X-axis. A lower mold is fixedly embedded in the middle of the worktable, and two symmetrical L-shaped back supports are fixed on the upper surface of the worktable behind the lower mold. The two L-shaped back supports are rotatably connected to the same arc-shaped toothed rod, with the inner arc side of the arc-shaped toothed rod facing the worktable. An upper mold is fixed at the end of the arc-shaped toothed rod near the lower mold. The upper mold has a rectangular box-shaped structure with the opening facing upward, and a mold cavity is reserved on the lower surface of the upper mold. The mold cavity has multiple protrusions on its back side, and each protrusion has an injection hole on its side. Multiple injection barrels are fixed at the top opening of the upper mold, and the bottom of the injection barrels has a crooked nozzle that communicates with the injection hole.

2. The processing method for synthesizing silicone rubber insulators according to claim 1, characterized in that, Two symmetrical shaft brackets are fixed on the upper surface of the workbench near the rear center, and the same short shaft is fixed between the two shaft brackets. A radial bearing is sleeved in the middle of the short shaft. Multiple radial spokes are fixed on the outer ring of the radial bearing, and the other end of the spokes is fixed on the inner arc side of the arc-shaped toothed rod. A barrel frame is fixed on the outer wall of the filling barrel near the bottom, and support legs are fixed on the lower surface of the barrel frame near the four corners.

3. The processing method for synthesizing silicone rubber insulators according to claim 2, characterized in that, A support base is fixed to the lower surface of the workbench near the edge, and a controller is provided on the upper surface of the support base near the front edge. Symmetrical fixed columns are fixed to the upper surfaces of the two L-shaped back supports near the rear junction, and the same bearing seat is fixed between the tops of the two fixed columns. An anti-slip bearing is embedded in the middle of the bearing seat, and a worm gear is rotatably connected to the middle of the anti-slip bearing. The outer arc side of the arc-shaped gear rack is reserved with worm gear teeth that mesh with the worm gear. A motor mounting base is fixed to the top of the two fixed columns on the side away from the lower mold. A geared motor is fixed to the upper surface of the motor mounting base by bolts. A preloaded rotating shaft is fixed between the output shaft end of the geared motor and the worm gear.

4. The processing method for synthesizing silicone rubber insulators according to claim 3, characterized in that, The preloaded rotating shaft includes a main shaft sleeve fixed to the end of the output shaft of the geared motor. A sleeve is reserved at the end of the main shaft sleeve near the worm gear. A plug shaft is inserted into the sleeve. The end of the plug shaft is fixed to the end of the worm gear and keeps coaxial. Three centrally symmetrically distributed extension diameter plates are fixed on the outer circumference of the sleeve. A return spring is fixed on the same side of each extension diameter plate. A spring baffle adapted to the corresponding return spring is reserved at the end of the outer wall of the plug shaft near the main shaft sleeve.

5. The processing method for synthesizing silicone rubber insulators according to claim 4, characterized in that, A ratchet is fitted and fixed near the bearing seat of the worm gear, and a ratchet abutment is hinged to the top of one of the fixed posts. A magnet is fixed to the side of the ratchet abutment away from the ratchet, and an electromagnet is fixed to the side of the fixed post near the lower surface of the magnet.

6. The processing method for synthesizing silicone rubber insulators according to claim 5, characterized in that, The inner circumference of the filling tank is slidably connected to a squeezing disc, and a handle is reserved on the side of the squeezing disc away from the crooked nozzle.

7. The processing method for synthesizing silicone rubber insulators according to claim 1, characterized in that, The upper mold has symmetrical arc-shaped tie rods fixed at the left and right ends near the front corners, and the centers of the two arc-shaped tie rods fall on the center line of the short axis. The tops of the two L-shaped back supports are fixed with support columns near the bottom of the arc-shaped tie rods, and the tops of the two support columns are fixed with roller seats. The roller seats are equipped with three grooved anti-detachment rollers arranged in a triangular shape.

8. The processing method for a synthetic silicone rubber insulator according to claim 7, characterized in that, Side ear posts are fixed to the middle of both sides of the upper mold, and hinge seats are fixed to the upper surface of the vertical plate of the L-shaped back stage near the worktable. Side pressure rods are rotatably connected to the hinge seats. The lower surface of the side pressure rods is provided with arc-shaped slots that match the positions of the corresponding side ear posts. The vertical plate of the L-shaped back stage is provided with grooves near the middle of the front, and magnetic blocks that attract the side pressure rods are embedded in the grooves.

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