A blank repairing device for high and low voltage electric porcelain production

Abstract

The present invention relates to the field of electric porcelain production, and in particular to a blank repair device for high and low voltage electric porcelain production. When trimming the inner and outer surfaces, the existing device is not convenient for clamping the inner and outer sides of the blank separately without changing the clamp, which affects the work efficiency. In addition, when trimming the inner wall of the blank, slag is easily accumulated and not easy to be discharged. It is also inconvenient to lift the blank, making it difficult to trim the contact surface. A blank repair device for high and low voltage electric porcelain production includes a base, etc.; an electric turntable is provided on the base, and two support platforms are fixedly connected to the electric turntable, and two placement plates are fixedly connected to the two support platforms, and a support vertical pole is fixedly connected to one side of the base. By horizontally moving the arc panel in different directions, different pads can clamp the inner and outer surfaces of the blank respectively, thereby improving the adaptability of the clamp, eliminating the need to replace different clamps, and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of electric porcelain production, in particular to a blank repairing device for high and low voltage electric porcelain production. Background Art

[0002] High and low voltage batteries are key components used for insulation and supporting conductors in power systems. They are divided into high voltage porcelain and low voltage porcelain due to different usage scenarios. The production of porcelain is based on a blank. The blank is trimmed into the specified size and appearance, and then sintered to form the final porcelain. High voltage porcelain bushing is one of them. It has a truncated cone-shaped insulation structure that is thin at the top and thick at the bottom. It is designed for high voltage power equipment. When trimming the blank, both the inner and outer surfaces need to be trimmed.

[0003] However, the existing device is not convenient for clamping the inner and outer sides of the blank separately without changing the fixture when trimming the inner and outer surfaces, which affects the work efficiency. In addition, slag is easily accumulated when trimming the inner wall of the blank, which is not easy to discharge, and it is not convenient to lift the blank, making it difficult to trim the contact surface. Summary of the Invention

[0004] In order to overcome the shortcomings of the background technology, the present invention provides a blank repairing device for high and low voltage electric porcelain production, which has high clamping adaptability, is convenient for discharging slag, and is convenient for repairing the contact surface.

[0005] The technical implementation plan of the present invention is: a blank repair device for the production of high and low voltage electrical porcelain, including a base, an electric turntable is provided on the base, a plurality of slots are provided on the electric turntable, two support platforms are fixedly connected to the electric turntable, two placement plates are fixedly connected to the two support platforms, a support vertical rod is fixedly connected to one side of the base, a clamping mechanism is provided on the electric turntable, the clamping mechanism is used to clamp the blank, a knife moving mechanism is provided on the upper part of the support vertical rod, and the knife moving mechanism is used to manually feed the blank repairing tool.

[0006] More preferably, the clamping mechanism includes an inner gear ring, which is rotatably connected to the middle part of the electric turntable, and the electric turntable is rotatably connected to four transmission gears, which mesh with the inner gear ring. An outer gear ring is placed on the electric turntable, which meshes with the four transmission gears. An radian frame is fixedly connected to one side of the outer gear ring, and a handle is slidably connected to the radian frame. A magnet block 1 is fixedly connected to the lower end of the handle, and a magnet block 2 is fixedly connected to the outer gear ring, and the magnet block 2 has opposite magnetic properties to the magnet block 1. A clamping rod is slidably connected to the outer gear ring, and the clamping rod The lower part is located in the slot on the electric turntable, and a pressure spring is connected between the card rod and the outer gear ring. A limit bar is fixedly connected to the electric turntable, and the limit bar is in contact with the outer gear ring. Two sliders are slidably connected to each of the placement plates, and the two sliders form a group. An arc panel is slidably connected between the two sliders in each group, and an inner arc surface pad and an outer arc surface pad are fixedly connected to each of the arc panels. A connecting rod is fixedly connected to the lower part of each arc panel, and a guide frame is fixedly connected to the middle of the inner gear ring. An oblique groove is provided on the guide frame, and one end of the connecting rod is located in the oblique groove on the guide frame.

[0007] More preferably, the knife moving mechanism includes a tool holder 1, the tool holder 1 is slidably connected to the supporting upright, the supporting upright is rotatably connected to a rotating screw 1, the rotating screw 1 is threadedly connected to the tool holder 1, the upper part of the supporting upright is rotatably connected to a swing bracket, the swing bracket is fixedly connected to a limiting block, the upper part of the swing bracket is slidably connected to a tool holder 2, the swing bracket is rotatably connected to a rotating screw 2, the rotating screw 2 is threadedly connected to the tool holder 2.

[0008] More preferably, it also includes a slag discharge mechanism, which is arranged on the placement plate, and is used to clean out the slag inside the blank, and the slag discharge mechanism includes a connecting plate, which is fixedly connected to the tool holder 2, and a movable long rod is slidably connected to the connecting plate, and a reset spring is connected between the movable long rod and the connecting plate, and one end of the movable long rod is fixedly connected to a magnet block, and a guide concave plate is fixedly connected between the four placement plates, and two straight grooves are provided on the guide concave plate, and a round rod is fixedly connected to the middle of the guide concave plate, and a semicircular rotating block is rotatably connected to the round rod, and the surface of the semicircular rotating block is provided with a plurality of planes, and the lower part of the semicircular rotating block is fixedly connected to a plurality of levers.

[0009] More preferably, it also includes a billet lifting mechanism, which is arranged on the electric turntable, and is used to lift the billet a certain distance when the billet rotates. The billet lifting mechanism includes four slide rails, and the four slide rails are fixedly connected to a limit plate, each of the slide rails is slidably connected to a sliding top plate, and the sliding top plate is provided with a guide inclined surface, and the lower portion and side of the sliding top plate are rotatably connected to a plurality of ball bearings, and the ball bearings are in contact with the inner wall of the slide rail, and each of the sliding top plates is fixedly connected to a guide rod on one side, and the guide rod passes through the limit plate, and a return spring is connected between the limit plate and the sliding top plate, and one end of each guide rod is fixedly connected to a heavy ball, and the lower portion of each arc panel is fixedly connected to a side rod, and each side rod is rotatably connected to a rolling ring, and the rolling ring is in contact with the upper surface of the sliding top plate.

[0010] The present invention has the following advantages: 1. By moving the arc panel horizontally in different directions, different pads can clamp the inner and outer surfaces of the blank respectively, which improves the adaptability of the clamp and eliminates the need to replace different clamps, thereby improving work efficiency.

[0011] 2. When trimming the inner wall of the blank, the slag generated will fall and accumulate inside the blank. The guide concave plate can then discharge the slag through the centrifugal force during rotation, and the relative movement between the lever and the guide concave plate can prevent the slag from being blocked during discharge.

[0012] 3. After the blank is clamped, start the electric turntable, which drives the blank to rotate. The electric turntable also drives the slide rail and the sliding top plate to rotate together. Under the action of centrifugal force, the heavy ball will pull the four sliding top plates to move horizontally a distance away from each other. The return spring is compressed, and then the sliding top plate moves horizontally for a distance and moves upward for a distance through the inclined surface to squeeze the rolling ring and the side rod, thereby causing the four arc panels to move upward for a distance. Since the four arc panels and the pads clamp the blank, the upward movement of the arc panels will lift the blank upward for a distance, so that the blank is out of contact with the placement plate, which is convenient for trimming the contact area between the lower surface of the blank and the placement plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the support platform and the placement plate of the present invention.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention.

[0016] Figure 4It is a schematic diagram of the separated three-dimensional structure of the slider and the arc panel of the present invention.

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping rod of the present invention.

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the guide frame and the connecting rod of the present invention.

[0019] Figure 7 This is a schematic diagram of the separated three-dimensional structure of the radian frame and the handle of the present invention.

[0020] Figure 8 It is a schematic diagram of the three-dimensional structure of the slag discharge mechanism of the present invention.

[0021] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0022] Figure 10 It is a schematic diagram of the separated three-dimensional structure of the guide concave plate and the semicircular rotating block of the present invention.

[0023] Figure 11 It is a schematic diagram of the three-dimensional structure of the blank lifting mechanism of the present invention.

[0024] Figure 12 It is a schematic diagram of the separated three-dimensional structure of the blank lifting mechanism of the present invention.

[0025] The markings of the components in the accompanying drawings are as follows: 1-base, 2-electric turntable, 3-support platform, 4-placement plate, 5-support pole, 61-inner gear ring, 62-transmission gear, 63-outer gear ring, 641-arc frame, 642-handle, 643-magnet block one, 644-magnet block two, 65-clamping rod, 66-pressure spring, 67-limiting bar, 68-slider, 69-arc panel, 610-inner arc surface pad, 611-outer arc surface pad, 612-connecting rod, 613-guide frame , 71- tool holder one, 72- rotating screw one, 73- swing bracket, 74- limit block, 75- tool holder two, 76- rotating screw two, 81- connecting plate, 82- moving long rod, 83- return spring, 84- magnet block, 85- guide concave plate, 86- round rod, 87- semicircular rotating block, 88- lever, 91- slide rail, 92- limit plate, 93- sliding top plate, 931- ball, 94- guide rod, 95- return spring, 96- heavy ball, 97- side rod, 98- rolling ring. DETAILED DESCRIPTION

[0026] The following further describes the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0027] Example 1

[0028] A blank repairing device for high and low voltage electric porcelain production, such as Figure 1-12 As shown, it includes a base 1, an electric turntable 2 is provided on the base 1, a plurality of slots are opened on the electric turntable 2, two support platforms 3 are fixedly connected to the electric turntable 2, and two placement plates 4 are fixedly connected to the two support platforms 3. A supporting vertical rod 5 is fixedly connected to one side of the base 1, and a clamping mechanism is provided on the electric turntable 2, and the clamping mechanism is used to clamp the blank. A knife moving mechanism is provided on the upper part of the supporting vertical rod 5, and the knife moving mechanism is used to manually feed the blank repairing tool.

[0029] The clamping mechanism includes an inner gear ring 61, which is rotatably connected to the middle part of the electric turntable 2. Four transmission gears 62 are rotatably connected to the electric turntable 2, and the four transmission gears 62 are meshed with the inner gear ring 61. An outer gear ring 63 is placed on the electric turntable 2, and the outer gear ring 63 is meshed with the four transmission gears 62. An radian frame 641 is fixedly connected to one side of the outer gear ring 63, and a handle 642 is slidably connected to the radian frame 641. A magnet block 1 643 is fixedly connected to the lower end of the handle 642, and a magnet block 2 644 is fixedly connected to the outer gear ring 63. The magnet block 2 644 has opposite magnetic properties to the magnet block 1 643. A clamping rod 65 is slidably connected to the outer gear ring 63, and the lower part of the clamping rod 65 Located in the card slot on the electric turntable 2, a pressure spring 66 is connected between the card rod 65 and the outer gear ring 63, and a limit bar 67 is fixedly connected to the electric turntable 2, and the limit bar 67 is in contact with the outer gear ring 63. Two sliders 68 are slidably connected to each of the placement plates 4, and the two sliders 68 form a group. An arc panel 69 is slidably connected between the two sliders 68 in each group, and each of the arc panels 69 is fixedly connected with an inner arc surface pad 610 and an outer arc surface pad 611. The lower part of each arc panel 69 is fixedly connected with a connecting rod 612, and the middle part of the inner gear ring 61 is fixedly connected with a guide frame 613, and an oblique groove is opened on the guide frame 613. One end of the connecting rod 612 is located in the oblique groove on the guide frame 613.

[0030] The knife moving mechanism includes a tool holder 71, which is slidably connected to the supporting upright 5, and a rotating screw 72 is rotatably connected to the supporting upright 5. The rotating screw 72 is threadedly connected to the tool holder 71, and a swing bracket 73 is rotatably connected to the upper part of the supporting upright 5. A limiting block 74 is fixedly connected to the swing bracket 73, and a tool holder 2 75 is slidably connected to the upper part of the swing bracket 73. A rotating screw 2 76 is rotatably connected to the swing bracket 73, and the rotating screw 2 76 is threadedly connected to the tool holder 2 75.

[0031] In the actual blank repair work, the insulator sleeve blank is in the shape of a conical hollow cylinder with a narrow top and a wide bottom, and both the inner and outer surfaces need to be trimmed. First, the blank is placed on the placement plate 4 in a narrow-top and wide-bottom posture, and then the four arc panels 69 are located inside the blank. Then, the clamping rod 65 is lifted and the handle 642 is pulled. The handle 642 drives the outer gear ring 63 to rotate through the magnetic force between the magnet block 1 643 and the magnet block 2 644. The rotation of the outer gear ring 63 will drive the inner gear ring 61 to rotate together through the transmission gear 62. The rotation of the inner gear ring 61 will drive the guide frame 613 to rotate together. The guide frame 613 The rotation will squeeze the four connecting rods 612 through the inclined groove to move horizontally in the direction of moving away from each other. The horizontal movement of the connecting rod 612 will drive the four arc panels 69 to move horizontally in the direction of moving away from each other, thereby causing the four arc panels 69 to drive the four outer arc pads 611 to slightly squeeze and support the inner wall of the blank. The pushing handle 642 will encounter resistance. When the handle 642 is continued to be pushed with too much force, the magnet block 1 643 and the magnet block 2 644 will be out of the state of attraction, so that the pushing handle 642 will no longer drive the outer gear ring 63 to rotate. In this way, the clamping of the side of the blank can be overloaded to prevent clamping If the holding force is too great and the blank is damaged, the clamping rod 65 can keep the outer gear ring 63 from rotating after clamping. After clamping, the electric turntable 2 is started first to drive the blank to rotate, and then the rotating screw 72 is rotated to drive the tool holder 71 to move horizontally to trim the outer surface of the blank. After the outer surface trimming is completed, the electric turntable 2 is turned off, the blank is loosened, and then the blank is inverted on the placement plate 4 in a state where it is wide at the top and narrow at the bottom, and the four arc panels 69 are located on the outside of the blank, and then the outer gear ring 63 is rotated by the handle 642 to drive the arc panels 69 and the inner arc pad 610 to trim the outer surface of the blank. After the swing bracket 73 is clamped, the swing bracket 73 is moved to a certain angle. After the swing bracket 73 is rotated, the limit block 74 contacts the upper part of the support upright 5, and the rotating screw 76 is in a horizontal state. The tool holder 2 75 extends from the wide opening above the blank into the interior of the blank as the swing bracket 73 rotates, and then the rotating screw 2 76 is rotated to drive the tool holder 2 75 to move horizontally to trim the inner wall of the blank. By moving horizontally in different directions through the arc panel 69, different pads can clamp the inner and outer surfaces of the blank respectively. This improves the adaptability of the clamp, and there is no need to replace different clamps, thereby improving work efficiency.

[0032] Example 2

[0033] On the basis of Example 1, Figure 8-10As shown, it also includes a slag discharge mechanism, which is arranged on the placement plate 4, and is used to clean out the slag inside the blank. The slag discharge mechanism includes a connecting plate 81, which is fixedly connected to the tool holder 75, and a movable long rod 82 is slidably connected to the connecting plate 81, and a reset spring 83 is connected between the movable long rod 82 and the connecting plate 81, and one end of the movable long rod 82 is fixedly connected to a magnet block 84, and a guide concave plate 85 is fixedly connected between the four placement plates 4, and the guide concave plate 85 has two straight grooves, and a round rod 86 is fixedly connected to the middle of the guide concave plate 85, and a semicircular rotating block 87 is rotatably connected to the round rod 86. The surface of the semicircular rotating block 87 is provided with a plurality of planes, and the lower part of the semicircular rotating block 87 is fixedly connected to a plurality of levers 88.

[0034] When the swing bracket 73 is rotated and the inner wall of the blank is trimmed, the swing bracket 73 will drive the tool holder 2 75 to rotate into the inside of the blank. When the tool holder 2 75 is rotated into the inside of the blank, the tool holder 2 75 will drive the moving long rod 82 and the magnet block 84 to rotate into the inside of the blank. Then, the magnet block 84 will contact and attract the surface of the semicircular rotating block 87 after the tool holder 2 75 is in place. Then, when the tool holder 2 75 moves horizontally, it will drive the connecting plate 81 to move, and the reset spring 83 will be stretched. Since the magnet block 84 attracts the semicircular rotating block 87, the tool holder 2 will move horizontally. 7, when the electric turntable 2 drives the placement plate 4 and the blank to rotate together, the guide concave plate 85 will also rotate, but the semicircular rotating block 87 will not rotate together, so the lever 88 under the semicircular rotating block 87 and the guide concave plate 85 will have relative movement. When the inner wall of the blank is trimmed, the slag generated will fall and accumulate inside the blank, and then the guide concave plate 85 can lead out the slag through the centrifugal force during rotation, and the relative movement between the lever 88 and the guide concave plate 85 can prevent the slag from being blocked when it is led out.

[0035] Example 3

[0036] On the basis of Example 2, Figure 11-12As shown, it also includes a blank lifting mechanism, which is arranged on the electric turntable 2. The blank lifting mechanism is used to lift the blank a certain distance when the blank is rotated. The blank lifting mechanism includes four slide rails 91. The four slide rails 91 are fixedly connected to a limit plate 92. Each of the slide rails 91 is slidably connected to a sliding top plate 93. The sliding top plate 93 is provided with a guide inclined surface. The lower part and side of the sliding top plate 93 are rotatably connected to a plurality of balls 931. The balls 931 are rotatably connected to the The inner wall of the slide rail 91 is in contact with each of the sliding top plates 93, and a guide rod 94 is fixedly connected to one side of each of the sliding top plates 93. The guide rod 94 passes through the limit plate 92, and a return spring 95 is connected between the limit plate 92 and the sliding top plate 93. A heavy ball 96 is fixedly connected to one end of each of the guide rods 94, and a side rod 97 is fixedly connected to the lower part of each of the arc panels 69. A rolling ring 98 is rotatably connected to each of the side rods 97, and the rolling ring 98 is in contact with the upper surface of the sliding top plate 93.

[0037] When the blank is clamped, the electric turntable 2 is started, and the electric turntable 2 drives the blank to rotate. The electric turntable 2 also drives the slide rail 91 and the sliding top plate 93 to rotate together. Under the action of centrifugal force, the heavy ball 96 will pull the four sliding top plates 93 to move horizontally a distance in the direction away from each other. The return spring 95 is compressed, and then the sliding top plate 93 moves horizontally for a distance and moves upward for a distance through the inclined surface squeezing the rolling ring 98 and the side rod 97, thereby causing the four arc panels 69 to move upward for a distance. Since the four arc panels 69 and the pads clamp the blank, the upward movement of the arc panel 69 will lift the blank upward for a distance, so that the blank is out of contact with the placement plate 4, which is convenient for simultaneously trimming the contact area between the lower surface of the blank and the placement plate 4. The balls 931 and the rolling ring 98 on the side and bottom of the sliding top plate 93 can reduce friction.

[0038] Although the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A blank repairing device for high and low voltage insulator production, characterized by: The utility model comprises a base (1), wherein the base (1) is provided with an electric turntable (2), wherein the electric turntable (2) is provided with a plurality of slots, wherein the electric turntable (2) is fixedly connected to two support platforms (3), wherein two placement plates (4) are fixedly connected to the two support platforms (3), and one side of the base (1) is fixedly connected to a support vertical rod (5), wherein the electric turntable (2) is provided with a clamping mechanism, wherein the clamping mechanism is used to clamp the blank, and a tool shifting mechanism is provided on the upper part of the support vertical rod (5), wherein the tool shifting mechanism is used to manually feed the blank repairing tool; wherein the clamping mechanism comprises an internal gear. The inner gear ring (61) is rotatably connected to the middle of the electric turntable (2). The electric turntable (2) is rotatably connected to four transmission gears (62). The four transmission gears (62) are meshed with the inner gear ring (61). An outer gear ring (63) is placed on the electric turntable (2). The outer gear ring (63) is meshed with the four transmission gears (62). One side of the outer gear ring (63) is fixedly connected to an arc frame (641). A handle (642) is slidably connected to the arc frame (641). The lower end of the handle (642) is fixedly connected to a magnetic Iron block 1 (643), magnet block 2 (644) is fixedly connected to the outer gear ring (63), magnet block 2 (644) and magnet block 1 (643) are opposite in magnetic properties, a clamping rod (65) is slidably connected to the outer gear ring (63), the lower part of the clamping rod (65) is located in the clamping groove on the electric turntable (2), a pressure spring (66) is connected between the clamping rod (65) and the outer gear ring (63), a limit bar (67) is fixedly connected to the electric turntable (2), the limit bar (67) is in contact with the outer gear ring (63), and each of the placement plates (4 ) are slidably connected to two sliders (68), the two sliders (68) form a group, and an arc panel (69) is slidably connected between the two sliders (68) in each group, and each arc panel (69) is fixedly connected to an inner arc surface pad (610) and an outer arc surface pad (611), and the lower part of each arc panel (69) is fixedly connected to a connecting rod (612), and the middle part of the inner gear ring (61) is fixedly connected to a guide frame (613); an oblique groove is opened on the guide frame (613), and one end of the connecting rod (612) is located in the oblique groove on the guide frame (613);The tool moving mechanism includes a tool holder (71), the tool holder (71) is slidably connected to the support upright (5), the support upright (5) is rotatably connected to a rotating screw (72), the rotating screw (72) and the tool holder (71) are connected by threads, the upper part of the support upright (5) is rotatably connected to a swing bracket (73), the swing bracket (73) is fixedly connected to a limiting block (74), the upper part of the swing bracket (73) is slidably connected to a tool holder (75), the swing bracket (73) is rotatably connected to a rotating screw (76), the rotating screw (76) and the tool holder (75) are connected by threads.

2. A blank repairing device for high and low voltage insulator production according to claim 1, characterized in that: The utility model also includes a slag discharge mechanism, which is arranged on the placement plate (4) and is used to clean out the slag inside the blank. The slag discharge mechanism includes a connecting plate (81), which is fixedly connected to the tool holder (75), a movable long rod (82) is slidably connected to the connecting plate (81), a return spring (83) is connected between the movable long rod (82) and the connecting plate (81), one end of the movable long rod (82) is fixedly connected to a magnet block (84), and a guide concave plate (85) is fixedly connected between the four placement plates (4), two straight grooves are opened on the guide concave plate (85), a round rod (86) is fixedly connected to the middle of the guide concave plate (85), a semicircular rotating block (87) is rotatably connected to the round rod (86), and a plurality of shifting rods (88) are fixedly connected to the lower part of the semicircular rotating block (87).

3. A blank repairing device for high and low voltage insulator production according to claim 2, characterized in that: The surface of the semicircular rotating block (87) is provided with a plurality of planes.

4. A blank repairing device for high and low voltage insulator production according to claim 1, characterized in that: The invention also includes a blank lifting mechanism, which is arranged on the electric turntable (2). The blank lifting mechanism is used to lift the blank by a certain distance when the blank rotates. The blank lifting mechanism includes four slide rails (91). The four slide rails (91) are fixedly connected to a limit plate (92). Each of the slide rails (91) is slidably connected to a sliding top plate (93). The lower part and the side of the sliding top plate (93) are rotatably connected to a plurality of balls (931). The balls (931) are in contact with the inner wall of the slide rail (91). Each of the four slide rails (91) is fixedly connected to a limit plate (92). A guide rod (94) is fixedly connected to one side of the sliding top plate (93), and the guide rod (94) passes through the limit plate (92). A return spring (95) is connected between the limit plate (92) and the sliding top plate (93). A heavy ball (96) is fixedly connected to one end of each guide rod (94). A side rod (97) is fixedly connected to the lower part of each arc panel (69). A rolling ring (98) is rotatably connected to each side rod (97), and the rolling ring (98) contacts the upper surface of the sliding top plate (93).

5. A blank repairing device for high and low voltage insulator production according to claim 4, characterized in that: The sliding top plate (93) is provided with a guide slope.

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