A spinning forming equipment for disc-shaped suspension porcelain insulators

Abstract

The invention discloses a spinning forming device for a disc-shaped suspended porcelain insulator, which comprises: a stepping device, a six-station turning device, a first spinning device, a demoulding device, a first blank repairing device, a second spinning device and a third spinning device, wherein the first spinning device comprises a second hydraulic cylinder, a third motor, a third frame and a first cutter, the third motor is mounted on the upper end of the third frame, the second hydraulic cylinder is mounted on the lower end of the third frame, the third motor drives the first cutter with a downward blade to rotate, and the second hydraulic cylinder drives the mold to move toward the blade direction of the first cutter; the invention provides a spinning forming device for a disc-shaped suspended porcelain insulator, which adopts a fully automatic processing method, abandons the traditional rotary cutting forming process, creatively adopts a spinning forming processing method, so that the main force for blank forming is the pressure on the blank, thereby ensuring the compactness of the flange part of the suspended porcelain insulator and reducing the generation of flange gaps.

Description

Technical Field

[0001] The invention relates to the technical field of insulator forming, and more specifically to a spinning forming device for a disc-shaped suspended porcelain insulator. Background Art

[0002] In recent years, my country's disc suspension porcelain insulator industry has undergone tremendous changes. It is not difficult to find that the suspension porcelain insulator industry is a need for the development of power transmission and automation technology. In a sense, the development of the suspension porcelain insulator industry plays an important basic supporting role in the development of power transmission and electrical automation technology. Through continuous efforts of mankind, the suspension porcelain insulator industry has developed to a certain extent.

[0003] Suspension porcelain insulators, referred to as electric porcelain, are widely used in high-speed rail wire insulation, high-voltage wire insulation and other aspects. Suspension porcelain insulator products have very high requirements for mechanical properties and durability in various environments. my country is now vigorously developing high-speed rail and long-distance power transmission, and the demand for suspension porcelain insulator products has also greatly increased. However, the suspension porcelain insulator products produced by the traditional semi-manual and semi-mechanized production method often fail to meet the use requirements in terms of output or quality. Therefore, it is urgent to change the traditional semi-manual and semi-mechanized suspension porcelain insulator molding method, that is, to change the traditional rotary cutting molding method to improve the quality and quantity of suspension porcelain insulator production.

[0004] In the Chinese invention patent No. 961228571, a rotary trowel for forming suspension insulators is disclosed, which processes the lower end of the suspension insulator. It has a plurality of flanges on the forming surface that are substantially on the same circle that form the wrinkles on the lower end of the suspension insulator, and a specified number of blank discharge holes are provided in the circumferential recess of the bell flange base. When the obtained formed body is cut with a plane perpendicular to the rotation center of the rotary trowel, it can prevent the flange gap from being generated when the formed body is dried. In the traditional rotary cutting forming process, the main force for forming the blank is the annular shear force, and the flange part cut out by rotary cutting is not dense enough, which will easily cause the flange gap.

[0005] In view of the above problems, the present invention provides a disc-shaped suspension porcelain insulator spin forming equipment, which adopts a fully automatic processing method to reduce production costs, improve labor efficiency, and abandon the traditional rotary cutting forming process. It creatively adopts the spin forming processing method, so that the main force for forming the blank is the pressure on the blank, thereby ensuring the density of the flange part of the suspension porcelain insulator and reducing the generation of flange gaps. Summary of the invention

[0006] The technical solution adopted by the present invention is to provide a disc-shaped suspended porcelain insulator spinning forming equipment, including: a stepping device, used to sequentially transport the mold with the blank placed to different stations; a six-station flipping device, used to transport the mold to the first spinning device, and transport the blank processed by the first spinning device to the next station; the first spinning device, which spins the blank to be processed on the six-station flipping device into an external contour; a demoulding device, which removes the blank on the mold that has been processed by the first spinning device on the six-station flipping device; a first blank repairing device, which receives the blank from the demoulding device The blank from the mold device is used to trim the remaining blank outside of it; the second spinning device and the third spinning device sequentially spin the blank from the first trimming device; wherein, the first spinning device includes a second hydraulic cylinder, a third motor, a third frame and a first tool, the third motor is installed at the upper end of the third frame, the second hydraulic cylinder is installed at the lower end of the third frame, the output end of the third motor is connected to the first tool, and drives the first tool with the blade facing downward to rotate, the output end of the second hydraulic cylinder is movably connected to the mold, and the output end of the second hydraulic cylinder is toward the blade direction of the first tool.

[0007] After adopting the above structure, the automated production of suspension porcelain insulators can be realized. The blank is spun in steps to respectively process the upper end contour and the lower end contour of the suspension insulator. Due to the wrinkles formed at the lower end of the suspension insulator, there are essentially multiple flanges on the same circle, and the flange part is subjected to secondary spun forming treatment.

[0008] Preferably, the stepping device includes a first hydraulic cylinder, a first frame and a first motor, a plurality of first hydraulic cylinders are evenly arranged along the central axis of the first frame, racks for placing the mold are provided on both sides of the upper end of the first frame, and the output shaft of the first motor is connected to a gear for driving the rack to move; the rack and gear transports the mold carrying the blank back and forth through reciprocating motion.

[0009] Preferably, first guide columns and guide sleeves are vertically provided on both sides of the single first hydraulic cylinder; the provision of the first guide columns and guide sleeves can ensure the smooth operation of the first hydraulic cylinder.

[0010] Preferably, the six-station flipping device includes a second motor, a cam divider, a flipping device and a second frame. A platform for placing the flipping device is provided at the upper end of the second frame. The second motor is installed at the lower end of the second frame to drive the cam divider to rotate. The cam divider is used to drive the rotation of the platform at the upper end of the second frame. The flipping device is used to clamp the mold and flip the mold.

[0011] Preferably, the demoulding device comprises a fourth frame and a cylinder, wherein the cylinder is mounted on the upper end of the fourth frame, and the output end of the cylinder is used to release the blank from the mold.

[0012] Preferably, the first trimming device includes a second tool, a fifth frame, a fourth motor and a third hydraulic cylinder. The second tool is installed above the fifth frame. The fourth motor is used to drive the third hydraulic cylinder to rotate as a whole. The output end of the third hydraulic cylinder is connected to the mold and transports the mold toward the cutting edge of the second tool.

[0013] Preferably, a first linear guide rail is vertically provided on the third frame, and the output end of the second hydraulic cylinder is slidably connected to the first linear guide rail.

[0014] Preferably, the second spinning device includes a fifth hydraulic cylinder, a sixth frame, a fifth motor and a third tool. The fifth motor is installed at the upper end of the sixth frame. The fifth motor drives the third tool with the blade facing downward to rotate around. The output end of the fifth hydraulic cylinder drives the mold carrying the blank to move toward the blade of the third tool.

[0015] Preferably, a second linear guide rail is vertically provided on the sixth frame, and the output end of the fifth hydraulic cylinder is slidably connected to the second linear guide rail.

[0016] Preferably, the second tool is used to process the contour of the lower end portion of the suspension porcelain insulator.

[0017] Preferably, a second blank trimming device is further included to receive the blank from the third spinning device and trim the remaining blank outside thereof.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. In the traditional rotary cutting process, the contour of the lower end of the suspension insulator is rotary cut at one time, and the excess material is discharged from the blank discharge hole. The blanks between the concentric flanges cannot complement each other, and the density of the flange part cut out is not enough. The present invention adopts a spinning process to remove part of the blank excess material before processing the contour of the lower end of the suspension insulator, thereby reducing the volume of the blank and facilitating the subsequent spinning. When the blank is spun, the pressure on the blank is much greater than the pressure on the blank in the rotary cutting process, resulting in the blank being able to complement each other between the flanges, and the density of the flange part after the spinning process is greater than the density of the flange part of the blank cut out.

[0020] 2. According to the present invention, a disc-shaped suspended porcelain insulator spinning forming equipment can send the unformed clay segments from the previous process, i.e., the clay kneading machine, to the six-station flipping device through an industrial robot. The six-station flipping device sends the clay segments to the first spinning device, performs the initial spinning forming on the clay segments, and obtains the approximate shape of the electric porcelain product. The six-station flipping device then sends the electric porcelain product blank to the demoulding device, separates the blank from the clay disc through a cylinder, and the clay blank falls into the mold on the stepping device. The stepping device sends the blank to At the first blank trimming device, the first blank trimming device cuts off the excess mud at the bottom of the blank, and sends the blank to the second spinning device through the stepping device. The second spinning device performs the initial molding of the bottom of the blank, and sends the blank to the second blank trimming device through the stepping device. The second blank trimming device cuts off the excess mud at the bottom of the blank, and sends the blank to the third spinning device through the stepping device. The third spinning device and the fourth spinning device respectively perform the initial molding and final molding of the inside of the blank, and finally send the blank to the third blank trimming device through the stepping device for the final blank trimming process. The insulator spinning forming equipment can well realize the molding of mud segments into insulator products, has a high degree of automation, reduces manpower, and reduces labor costs. Compared with traditional manual rotary cutting molding, it changes the molding method of insulator products, product quality can be better guaranteed, and the products produced have a higher degree of standardization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a suspension porcelain insulator spinning forming device according to an embodiment of the present invention at a first viewing angle;

[0022] Figure 2 It is a structural schematic diagram of a suspension porcelain insulator spinning forming equipment according to an embodiment of the present invention under a second viewing angle;

[0023] Figure 3 It is a structural schematic diagram of the stepping device in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the six-station turning device in the present invention;

[0025] Figure 5 It is a schematic diagram of the first spinning device in the present invention;

[0026] Figure 6 It is a schematic structural diagram of the demoulding device in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the blank repairing device in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the second spinning device in the present invention;

[0029] Fig. 9It is a structural schematic diagram of the suspension porcelain insulator of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the second and third spinning devices in the present invention.

[0031] Description of the numbers in the figure:

[0032] Wherein 10, stepping device; 101, first hydraulic cylinder; 102, first guide column and guide sleeve; 103, first frame; 104, first tray; 105, first motor; 106, gear rack;

[0033] 15. Second blank repairing device;

[0034] 20. Six-station turning device; 201. Second motor; 202. Cam divider; 203. Turning device; 204. First mud tray; 205. Second frame;

[0035] 30, first spinning device; 301, second hydraulic cylinder; 302, first linear guide rail; 303, third motor; 304, third frame; 305, first tool; 306, first pulley; 307, first belt; 308, first output shaft; 309, second mud tray;

[0036] 40. demoulding device; 401. cylinder; 402. fourth frame; 403. air pipe; 404. second guide pin and guide sleeve;

[0037] 50, first blank repairing device; 501, second tool; 502, fifth frame; 503, fourth motor; 504, third hydraulic cylinder; 505, third guide post and guide sleeve; 506, second tray;

[0038] 60, second spinning device; 601, fifth hydraulic cylinder; 602, sixth frame; 603, fifth motor; 604, second belt; 605, second pulley; 606, second output shaft; 607, third tool; 608, second linear guide rail; 609, third tray;

[0039] 70. The third spinning device. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] like Fig. 9 As shown, the upper end of the disc-shaped suspension porcelain insulator is a cylindrical head protruding upward, and the lower end of the disc-shaped suspension porcelain insulator is provided with multiple concentric flanges. The center of the lower end is provided with a blank inner hole, which extends upward into the protruding head, and the wall thickness of the blank inner hole is uniform.

[0043] Example 1

[0044] like Figure 1-2 As shown, a disc-shaped suspension porcelain insulator spinning forming equipment comprises:

[0045] The stepping device 10 is used to sequentially transport the mold with the blank to different stations;

[0046] The six-station turning device 20 is used to transport the mold to the first spinning device 30 and transport the blank processed by the first spinning device 30 to the next station;

[0047] The first spinning device 30 spins the blank to be processed on the six-station turning device 20 to form an external contour;

[0048] A demoulding device 40 is used to remove the blank on the mold processed by the first spinning device 30 from the six-station turning device 20;

[0049] The first blank trimming device 50 receives the blank from the demoulding device 40 and trims the remaining blank outside the blank;

[0050] The second spinning device 60 and the third spinning device 70 sequentially spin the blank from the first trimming device 50;

[0051] The stepping device 10 is divided into two parts, one is from the initial end of the stepping device 10 to the demoulding device 40, and the other is from the initial end of the stepping device 10 to the demoulding device 40. Figure 1As can be seen from the figure, this part is shorter and can accommodate seven molds at the same time, so it is called the short part; the other part is from the first trimming device 50 to the second trimming device 15, which is longer and can accommodate nine molds at the same time, so it is called the long part. For ease of understanding, the mold on the stepping device 10 in the long part stage is called the first clay tray 204, and the mold placed on the stepping device 10 in the short part stage is called the second clay tray 309.

[0052] like Figure 3 As shown, the stepping device 10 in the short stage is lower in height than the stepping device 10 in the long stage. The stepping device 10 includes a first hydraulic cylinder 101, a first frame 103 and a first motor 105. Several first hydraulic cylinders 101 are evenly arranged along the central axis of the first frame 103. A gear rack 106 is provided on the first frame 103, wherein both sides of the upper end of the first frame 103 are provided with a rack for placing the mold, and the output shaft of the first motor 105 is connected with a gear for driving the rack to move. The output end of the first hydraulic cylinder 101 faces upward, and a first tray 104 is installed on the output end. Since the shape of the mold corresponds to the shape of the suspension porcelain insulator, a convex block corresponding to the cylindrical upward protruding head in the suspension porcelain insulator is provided on the mold, and the first tray 104 is movably engaged with the convex block on the mold. In some examples, first guide pillars and guide sleeves 102 are provided on both sides of the first hydraulic cylinder 101 to ensure that the first hydraulic cylinder 101 works smoothly.

[0053] In some examples, the stepping device 10 of the short stage is provided with six first hydraulic cylinders 101, which are arranged in sequence from the starting end, that is, except for the first hydraulic cylinder 101 directly below the demoulding device 40. In some examples, the rack of the short stage is provided with a groove for the first mud pan 204 to nest.

[0054] In some examples, eight first hydraulic cylinders 101 are provided on the stepping device 10 in the long stage, which are arranged in sequence starting from the starting end.

[0055] like Figure 4 As shown, the six-station flipping device 20 includes a second motor 201, a cam divider 202, a flipping device 203 and a second frame 205. The upper end of the second frame 205 is provided with a platform for placing the flipping device 203. The second motor 201 is installed at the lower end of the second frame 205 and is used to drive the cam divider 202 to rotate. The cam divider 202 is used to drive the rotation of the upper platform of the second frame 205. The flipping device 203 is used to clamp the mold and flip the mold.

[0056] In some examples, six flipping devices 203 are evenly placed on the platform, with the flipping device 203 corresponding to the first spinning device 30 as the starting end, that is, the flipping device 203 corresponding to the first spinning device 30 is the first flipping device 203, and the second flipping device 203, the third flipping device 203, the fourth flipping device 203, the fifth flipping device 203 and the sixth flipping device 203 are sequentially called clockwise. In some examples, the gripping function of the flipping device 203 is pneumatically clamped, and its flipping function is driven by a motor, which is a prior art and will not be elaborated on.

[0057] like Figure 5 As shown, the first spinning device 30 includes a second hydraulic cylinder 301, a third motor 303, a third frame 304 and a first tool 305. The third motor 303 is installed at the upper end of the third frame 304, and the second hydraulic cylinder 301 is installed at the lower end of the third frame 304. The output end of the third motor 303 is connected to the first tool 305 and drives the first tool 305 with the blade facing downward to rotate. The output end of the second hydraulic cylinder 301 is movably connected to the second mud pan 309, and the output end of the second hydraulic cylinder 301 is facing the blade direction of the first tool 305.

[0058] In some examples, the first tool 305 is used to process the upper end contour of the suspension porcelain insulator; in some examples, the upper end of the first tool 305 is connected to the first pulley 306 through the first output shaft 308, and the third motor 303 drives the first pulley 306 to rotate through the first belt 307, thereby driving the first tool 305 to rotate around.

[0059] In some examples, a first linear guide rail 302 is vertically disposed on the third frame 304 , and an output end of the second hydraulic cylinder 301 is slidably connected to the first linear guide rail 302 to ensure that the output end of the second hydraulic cylinder 301 moves upward smoothly.

[0060] like Figure 6 As shown, the demoulding device 40 includes a fourth frame 402 and a cylinder 401. The cylinder 401 is installed at the upper end of the fourth frame 402, and the output end of the cylinder 401 is downwardly directed to separate the blank from the flipped second mud tray 309. In some examples, the outer surface of the second mud tray 309 is coated with a layer of isolation film, and the outer surface of the isolation film is provided with a grid pattern to increase the adhesion between the blank and the isolation film. The bottom of the second mud tray 309 is provided with an air inlet for the isolation film. When the air between the isolation film and the second mud tray 309 is evacuated, the isolation film is tightly attached to the second mud tray 309; the output end of the cylinder 401 is connected to an air pipe 403, and the bottom end of the air pipe 403 is movably connected to the air inlet of the second mud tray 309, which is used to inflate the isolation film, and the isolation film expands, so that the blank gradually separates from the second mud tray 309.

[0061] In some examples, second guide pins and guide sleeves 404 are provided on both sides of the cylinder 401 to ensure stable operation of the cylinder 401 .

[0062] like Figure 7 As shown, the first blank repairing device 50 includes a second tool 501, a fifth frame 502, a fourth motor 503 and a third hydraulic cylinder 504. The second tool 501 is installed above the fifth frame 502. The fourth motor 503 is used to drive the third hydraulic cylinder 504 to rotate as a whole. The output end of the third hydraulic cylinder 504 is connected to the mold and transports the mold toward the cutting edge of the second tool 501.

[0063] In some examples, third guide post and guide sleeve 505 are provided on both sides of the third hydraulic cylinder 504 , and the third guide post and guide sleeve 505 and the third hydraulic cylinder 504 are regarded as a whole and are driven by the fourth motor 503 .

[0064] In some examples, the output end of the third hydraulic cylinder 504 is directed upward, and a second tray 506 is mounted on the output end, and the output end is movably connected to the first mud pan 204 via the second tray 506 .

[0065] like Figure 8 As shown, the second spinning device 60 includes a fifth hydraulic cylinder 601, a sixth frame 602, a fifth motor 603 and a third cutter 607. The fifth motor 603 is installed at the upper end of the sixth frame 602. The fifth motor 603 drives the third cutter 607 with the blade facing downward to rotate around, and the output end of the fifth hydraulic cylinder 601 drives the mold carrying the blank to move toward the blade direction of the third cutter 607. The cutter head part of the third cutter 607 is used for the lower end of the suspension porcelain insulator.

[0066] In some examples, the upper end of the third tool 607 is connected to the second pulley 605 via the second output shaft 606, and the fifth motor 603 drives the second pulley 605 to rotate via the second belt 604, thereby driving the third tool 607 to rotate around.

[0067] In some examples, a second linear guide rail 608 is vertically disposed on the sixth frame 602, and the output end of the fifth hydraulic cylinder 601 is slidably connected to the second linear guide rail 608 to ensure that the output end of the fifth hydraulic cylinder 601 moves upward smoothly. In some examples, a third tray 609 is installed on the upper end of the output end of the fifth hydraulic cylinder 601, and the third tray 609 is movably connected to the first mud pan 204.

[0068] like Fig.10 As shown, except for the cutter and the spinning device, the other components and structures of the third spinning device 70 are the same.

[0069] In some examples, the rotation direction of the tool of the third spinning device 70 is opposite to the rotation direction of the tool of the second spinning device 60 .

[0070] Its working principle is:

[0071] 1. Each first hydraulic cylinder 101 lifts up the second mud pan 309, and the gear drives the rack to move a fixed distance toward the first frame 103 away from the six-station turning device 20; the first hydraulic cylinder 101 puts down the second mud pan 309, and the second mud pan 309 falls on the rack, and the gear drives the second mud pan 309 to move forward a fixed distance, so as to achieve the purpose of conveying the second mud pan 309;

[0072] 2. The third flipping device 203 is located directly above the last station of the stepping device 10 in the short stage. The third flipping device 203 opens its jaws, receives the second mud pan 309 and then clamps it. The cam divider 202 rotates to drive the platform to switch stations.

[0073] 3. The first spinning device 30 spins the blank on the first turning device 203 to form an upper contour;

[0074] Fourth, the second spinning device 60 is turned 180 degrees, so that the lower end of the second mud tray 309 with the upper contour spun out faces upward;

[0075] Fifth, the demoulding device 40 delivers the blank to the first clay tray 204, and the first clay tray 204 is transported to the stepping device 10 of the long stage by an external robot;

[0076] 6. The first blank repairing device 50 removes the remaining blank on the first clay plate 204 which is spun by the first spinning device 30;

[0077] 7. The second spinning device 60 and the third spinning device 70 sequentially spin the blank on the first mud tray 204;

[0078] 8. The second blank trimming device 15 removes the remaining blanks on the first clay plate 204 that are spun out by the second spinning device 60 and the third spinning device 70 .

[0079] Example 2

[0080] This embodiment is different from the embodiment 1 in that one ends of the two parts of the stepping device 10 in the embodiment 1 are close to each other, while in this embodiment, the stepping device 10 in the short stage transports the second mud tray 309 to the fifth turning device 203 .

[0081] In some examples, the stepping device 10 in the short stage transports the second mud tray 309 to the fourth turning device 203 .

[0082] The above is an explanation of the preferred embodiments of the present invention, but it cannot be understood as a limitation of the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A spinning forming device for a disc-shaped suspension porcelain insulator, comprising: A stepping device is used to sequentially transport the mold with the blank to different workstations; A six-station turning device is used to transport the mold to the first spinning device and transport the blank processed by the first spinning device to the next station; The first spinning device spins the blank to be processed on the six-station turning device to form an external contour; A demoulding device for removing the blank from the mold processed by the first spinning device on the six-station turning device; The first blank trimming device receives the blank from the demoulding device and trims the remaining blank outside the blank; The second spinning device and the third spinning device sequentially spin the blank from the first blank trimming device; Wherein, the first spinning device comprises a second hydraulic cylinder, a third motor, a third frame and a first tool, the third motor is mounted on the upper end of the third frame, the second hydraulic cylinder is mounted on the lower end of the third frame, the output end of the third motor is connected to the first tool, and drives the first tool with the blade downward to rotate, the output end of the second hydraulic cylinder is movably connected to the mold, and the output end of the second hydraulic cylinder is toward the blade direction of the first tool; The six-station flipping device includes a second motor, a cam divider, a flipping device and a second frame, the upper end of the second frame is provided with a platform for placing the flipping device, the second motor is installed at the lower end of the second frame, and is used to drive the cam divider to rotate, the cam divider is used to drive the rotation of the upper platform of the second frame, and the flipping device is used to clamp the mold and flip the mold; The demoulding device comprises a fourth frame and a cylinder, wherein the cylinder is mounted on the upper end of the fourth frame, and the output end of the cylinder is used to separate the blank from the mold; The first blank repairing device includes a second tool, a fifth frame, a fourth motor and a third hydraulic cylinder. The second tool is installed above the fifth frame. The fourth motor is used to drive the third hydraulic cylinder to rotate as a whole. The output end of the third hydraulic cylinder is connected to the mold and transports the mold toward the cutting edge of the second tool. The second spinning device comprises a fifth hydraulic cylinder, a sixth frame, a fifth motor and a third cutter, wherein the fifth motor is mounted on the upper end of the sixth frame, the fifth motor drives the third cutter with the blade facing downward to rotate around, and the output end of the fifth hydraulic cylinder drives the mold carrying the blank to move toward the blade direction of the third cutter; The third spinning device is the same as the second spinning device except that the cutter is different, and other components and structures are the same as those of the second spinning device.

2. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 1, characterized in that: The stepping device includes a first hydraulic cylinder, a first frame and a first motor. Several first hydraulic cylinders are evenly arranged along the central axis of the first frame. Racks for placing the mold are provided on both sides of the upper end of the first frame. The output shaft of the first motor is connected to a gear for driving the rack to move.

3. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 2, characterized in that: First guide columns and guide sleeves are vertically arranged on both sides of the single first hydraulic cylinder.

4. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 1, characterized in that: A first linear guide rail is vertically arranged on the third frame, and the output end of the second hydraulic cylinder is slidably connected to the first linear guide rail.

5. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 1, characterized in that: A second linear guide rail is vertically disposed on the sixth frame, and the output end of the fifth hydraulic cylinder is slidably connected to the second linear guide rail.

6. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 1, characterized in that: The second tool is used for machining the contour of the lower end portion of the suspension porcelain insulator.

7. The spinning forming equipment for disc-shaped suspension porcelain insulators according to claim 1, characterized in that: It also includes a second blank trimming device, which receives the blank from the second spinning device and trims the remaining blank outside.

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