Porcelain insulator head glazing and sanding device

Abstract

The utility model discloses a porcelain insulator head glazing and sanding device, and relates to the technical field of insulator surface processing, the porcelain insulator head glazing and sanding device comprises a conveying mechanism, an inner glazing mechanism, an inner sanding mechanism, an outer glazing mechanism and an outer sanding mechanism are sequentially arranged on the conveying mechanism, and the inner glazing mechanism glazes the head inner surface of a porcelain insulator head through a glaze throwing cover; the inner sand feeding mechanism is connected through a sand throwing assembly to feed sand on the inner surface of the head of the porcelain insulator; the outer glazing mechanism is used for glazing the outer surface of the head of the porcelain insulator through a sponge rolling brush; and the outer sanding mechanism comprises a sand blasting nozzle for sanding the outer surface of the head of the porcelain insulator. According to the utility model, by changing the traditional manual or stand-alone internal and external glaze sand feeding mode, internal and external glaze sand feeding is integrated on one automatic device, so that continuous production is realized, the production efficiency is greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator surface processing, in particular to a glazing and sanding device for the head of a porcelain insulator. Background Art

[0002] The cylindrical head porcelain insulator is a type of suspension insulator structure. Compared with the cone head product, due to its small head size and low structural height, the production cost can be reduced. The cylindrical head insulator is composed of a porcelain part and a fitting, and the two parts are connected by an adhesive in the middle. The sanding process is one of the most important processes. The glaze on the head of the cylindrical head is usually different from the glaze formula of the umbrella part. The purpose is to make the green body receive compressive stress provided by the glaze and thus have higher strength. The porcelain sand adheres to the head glaze, making the connection between the head of the porcelain part and the adhesive part more firm. At the same time, the combined part also bears the strength of the porcelain part connection. Therefore, the sanding process is particularly important.

[0003] In the prior art, most of the sand glaze and sanding are manually applied. Due to manual operation, the unevenness after glazing and sanding may occur due to different personal experience and techniques, making it impossible to standardize glazing and sanding. Moreover, the glazing and sanding efficiency is low, and the quality stability and consistency of the insulator products cannot be effectively guaranteed. Even if mechanized operation is adopted, the existing glazing and sanding equipment and tooling are separate independent entities. During the operation process, the likelihood of damage to the green body will increase due to frequent manual handling and transfer of the green body. Using this solution will not only increase the production cost but also easily cause damage to the green body. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a glazing and sanding device for the head of a porcelain insulator is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A glazing and sanding device for the head of a porcelain insulator, including a conveying mechanism, on which an inner glazing mechanism, an inner sanding mechanism, an outer glazing mechanism, and an outer sanding mechanism are sequentially arranged.

[0007] The inner glazing mechanism includes a first glaze supply component. A glaze throwing cover is arranged at the output end of the first glaze supply component. The glaze throwing cover is fixedly connected to a rotating rod, and the rotating rod is rotatably connected to a first mounting plate. The first mounting plate is arranged on a first lifting frame in a liftable manner.

[0008] The inner sanding mechanism includes a sand storage box, a quantitative sand supply component, a sand throwing component, and a second lifting frame. The sand throwing component is used for throwing sand into the inner wall of the cylindrical head porcelain insulator and is arranged on the second lifting frame in a liftable manner. The sand storage box is connected to the sand throwing component through the quantitative sand supply component.

[0009] The outer glazing mechanism includes a sponge roller brush, which is controlled by a sponge roller brush swinging component and is used for glazing the outer wall of the cylindrical head porcelain insulator.

[0010] The outer sanding mechanism includes a sandblasting nozzle and a third lifting frame. The sandblasting nozzle is connected to a sand box, and the third lifting frame is used to support the porcelain insulator and control its lifting.

[0011] Furthermore, the first glaze supply component includes a water tank and a glaze tank. The water tank is connected to a glaze spraying cover through a water delivery pipe, and the glaze tank is connected to the glaze spraying cover through a glaze delivery pipe. The glaze tank is a constant-pressure airtight mixer, and stirring blades are arranged inside the constant-pressure airtight mixer for stirring the materials in the glaze tank.

[0012] Furthermore, the rotating rod is driven by a first rotating motor. The first rotating motor is fixedly connected to a first mounting plate. The first mounting plate is connected to a first connecting block. The first connecting block is connected to a first ball screw and cooperates with a first linear guide rail. The first ball screw is driven by a lifting motor.

[0013] Furthermore, the sand throwing component includes a sand throwing bucket, which is driven by a sand throwing rotating motor.

[0014] The quantitative sand supply component includes a connecting block, which is connected to a sand pushing screw. Both are cooperated with a second linear guide rail. Both ends of the sand pushing screw are fixedly connected to the second linear guide rail through bearing seats. A connecting mechanism is connected to the sand pushing screw thread. A sand pushing piston is arranged at the top of the connecting mechanism. A sand pushing plate is arranged at the top of the sand pushing piston. The sand pushing piston is driven by a sand pushing motor.

[0015] Furthermore, the outer glazing mechanism further includes a supplementary glazing brush and an intermediate sponge roller. The supplementary glazing brush is connected to a cylinder, and the cylinder is used to drive the supplementary glazing brush to dip into the sanded glaze bucket to pick up sanded glaze. The intermediate sponge roller is arranged between the supplementary glazing brush and the sponge roller brush and is used to supply sanded glaze to the sponge roller brush through the supplementary glazing brush.

[0016] Furthermore, the inner glazing mechanism further includes a three-jaw positioning component. The three-jaw positioning component includes three rubber-coated roller cylinders, which are rotatably arranged on a jaw bracket. The opening and closing of the jaw bracket are controlled by a second servo motor, and the second servo motor is fixedly connected to an outer frame.

[0017] Furthermore, the outer sanding mechanism further includes a purging component. The purging component includes a blowing nozzle and a universal conduit. The blowing nozzle is arranged on one side of the sandblasting nozzle. One end of the universal conduit is connected to the blowing nozzle, and the other end is connected to an air compressor.

[0018] Further, the third lifting frame includes a third bracket, on which a jacking motor is fixedly connected. The jacking motor is in transmission connection with a screw rod. Both ends of the screw rod are fixed by a third bearing base, and the third bearing base is fixedly connected to the third bracket. A third mounting plate is arranged on the screw rod, and the screw rod is used to drive the third mounting plate to move up and down. A jacking rod is fixedly connected to the third mounting plate, and the jacking rod is used to cooperate with the porcelain insulator.

[0019] Advantageous Effects

[0020] Compared with the prior art, the advantageous effects of the present utility model are as follows: (1) By changing the traditional manual or single - machine method of applying inner and outer glaze and sand, the application of inner and outer glaze and sand is integrated onto an automated device, realizing continuous and uninterrupted production, greatly improving production efficiency and reducing production costs. (2) Through fully automated mechanical work, only by modifying the set parameters can the size, height, and range of glazing and sanding on the product be finely adjusted, improving the consistency of product quality and ensuring the performance of the insulator. Brief Description of the Drawings

[0021] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0022] Figure 1 It is a schematic diagram of the overall structure of a device for glazing and sanding the head of a porcelain insulator.

[0023] Figure 2 It is a schematic diagram of the structure of the inner glaze applying mechanism.

[0024] Figure 3 It is a schematic diagram of the structure of the inner sand applying mechanism.

[0025] Figure 4 It is a schematic diagram of the structure of the outer sand applying mechanism.

[0026] Figure 5 It is a schematic diagram of the structure of the outer sand lifting assembly.

[0027] Figure 6 It is a schematic diagram of the structure of the outer glaze applying mechanism.

[0028] In the figure: the first conveying motor - 1; the porcelain part conveying belt - 2; the first bracket - 3; the first servo motor - 4; the outer frame - 5; the first cylinder - 6; the loading post - 7; the second lead screw - 8; the jaw bracket - 9; the jaw - 10;

[0029] Rubber-coated roller -- 11; Constant-pressure sealed mixer -- 15; Glaze delivery pipe -- 16; First rotating motor -- 17; First synchronous belt -- 18; Rotating rod -- 19; Sleeve -- 20;

[0030] Glaze-spraying cover -- 21; Water tank -- 24; Glaze delivery pipe -- 22; Water delivery pipe -- 23; ----- Water delivery solenoid valve -- 25; First mounting plate -- 26; Lifting motor -- 27; First ball screw -- 28; First linear guide rail -- 29; First bearing base -- 30; First connecting block -- 31;

[0031] Sand-pushing piston -- 34; Sand-spraying rotating motor -- 35; Second synchronous belt -- 36; Coupling -- 37; Sand-spraying bucket -- 38; Sand-pushing motor -- 39; Sand-pushing screw rod -- 40;

[0032] Connecting mechanism -- 41; Bearing seat -- 42; Second linear guide rail -- 43; Connecting block -- 44; Sand-pushing plate -- 45; Second mounting plate -- 46; Lifting motor -- 47; Second ball screw -- 48; Third linear guide rail -- 49; Second bearing base -- 50;

[0033] Second connecting block -- 51, Third synchronous belt -- 52; Second bracket -- 53; Sponge roller brush -- 54; Roller brush servo driver -- 55; Cylinder -- 56; Intermediate sponge roller -- 57; Second rotating motor -- 58; Glaze-supplementing brush -- 59; Brush glaze-supplementing assembly -- 60;

[0034] Sand-coated glaze bucket -- 61; Sponge roller brush swing mechanism -- 62; Sand box -- 63; Sand material conduit -- 64; Sand-blasting nozzle -- 65; Servo lifting mechanism -- 66; Universal conduit -- 67; Air-blowing nozzle -- 68; Jacking motor -- 69; Fourth synchronous belt -- 70;

[0035] Third connecting block -- 71; Third mounting plate -- 72; Third bearing base -- 73; Screw rod -- 74; Bracket -- 75; Third rotating motor -- 76; Thumb rod -- 77; Second servo motor -- 78. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0038] Refer to Figures 1-6 , first conveying motors 1 are respectively arranged at both ends of the porcelain part conveying mechanism. The first conveying motors are roll-connected to 2 porcelain part conveying belts 2. A first bracket 3 is arranged below the porcelain part conveying mechanism, and the whole conveying mechanism is located above the bracket. Two synchronous belts adhered with foamed rubber are used to carry and convey products. The synchronous belts ensure that the conveying distance accuracy is consistent, and the soft characteristics of the foamed rubber protect the products from being damaged.

[0039] Lifting control of the loading mechanism: The loading mechanism is controlled to lift by a first air cylinder 6. The top of the first air cylinder 6 is installed with a loading support column 7, and the first air cylinder 6 controls the loading support column 7 to perform lifting operations.

[0040] The inner glazing mechanism consists of a three-jaw positioning component, a glaze supply device, a glaze spraying and cleaning device, and a moving mechanism.

[0041] The three-jaw positioning component includes a second servo motor 78, a second lead screw 8, a jaw support 9, and jaws 10;

[0042] The second servo motor is fixed on the outer frame 5. The second lead screw 8 is connected to the second servo motor 78 and rotates with the motor. The jaw support 9 is connected to the second lead screw 8, and the jaws 10 are connected to the jaw support 9. The jaws 10 are composed of three rotatable rubber-coated rollers 11, which reduce the friction with the workpiece during the clamping process and are distributed in a triangular shape.

[0043] The glaze supply mechanism consists of a constant-pressure airtight mixer 15 and a glaze delivery pipe 16. The constant-pressure airtight mixer 15 stirs the sanded glaze. The constant-pressure mixer is connected to the glaze delivery pipe 16 below. Compressed air is used to pressurize the constant-pressure mixer, and the glaze is output from the glaze delivery pipe.

[0044] The glaze spraying and cleaning device includes a first rotating motor 17, a first synchronous belt 18, a rotating rod 19, a sleeve 20, a glaze spraying cover 21, a glaze delivery pipe 22, a water delivery pipe 23, and a water tank 24. The first rotating motor 17 is connected to the first synchronous belt 18 to drive the rotating rod 19 to rotate. A glaze spraying cover 21 is installed at the top of the screw rod. Stirring blades 22 and a water delivery pipe 23 are fixed on both sides of the sleeve. The glaze supply device conveys the glaze to the glaze spraying cover 21, and the glaze is sprayed onto the inner cavity of the insulator under the action of centrifugal force. After the glaze spraying is completed, the glaze spraying mechanism retracts to the original position, and the water delivery solenoid valve 25 is opened to supply water to the glaze spraying cover. At the same time, the glaze spraying cover rotates to clean the glaze spraying cover.

[0045] The first lifting frame includes a first mounting plate 26, a lifting motor 27, a first ball screw 28, a first linear guide 29, a first bearing base 30, and a first connecting block 31;

[0046] The lifting motor 27 and the first ball screw 28 are both mounted on the linear guide. Both ends of the first ball screw 28 are fixedly connected to the first linear guide 29 through the bearing base 30. The lifting motor 27 is connected to the first ball screw 28. The first mounting plate 26 is connected to the first ball screw 28 through the first connecting block 31. The first connecting block 31 is threadedly connected to the first ball screw 28. Driven by the lifting motor 27, the first mounting plate 26 can move along the linear guide.

[0047] The upper internal sand mechanism consists of a sand storage box, a quantitative sand supply device, a sand throwing device, and a moving mechanism. The sand storage box 32 is located directly below the upper internal sand mechanism, and is connected to a sand return groove 33 for recovering porcelain sand.

[0048] The quantitative sand supply assembly includes: a sand pushing piston 34, a sand throwing rotary motor 35, a second synchronous belt 36, a coupling 37, a sand throwing bucket 38, a sand pushing motor 39, a sand pushing screw 40, a connecting mechanism 41, a bearing seat 42, a second linear guide 43, a connecting block 44, and a sand pushing plate 45;

[0049] The sand throwing rotary motor 35 is connected to the second synchronous belt 36. The second synchronous belt 36 is connected to the coupling 37. The coupling 37 is connected to the sand throwing bucket 38. The sand throwing rotary motor 35 drives the sand throwing bucket 38 to rotate. The sand pushing motor 39 is connected to the connecting block 44. The connecting block 44 is connected to the sand pushing screw 40. The sand pushing screw 40 and the connecting block 44 are both mounted on the linear guide. Both ends are fixedly connected to the second linear guide 43 through the bearing seat 42. The connecting mechanism 41 is connected to the sand pushing screw 40. The top of the connecting mechanism 41 is connected to the sand pushing piston 34. The top of the sand pushing piston is provided with a sand pushing plate 45. The second linear guide 43 has a limiting effect on the sand pushing screw 40. Driven by the sand pushing motor 39, the sand pushing piston 34 can move up and down along the linear guide.

[0050] The second lifting frame includes: a second mounting plate 46, a lifting motor 47, a second ball screw 48, a third linear guide 49, a second bearing base 50, a second connecting block 51, a third synchronous belt 52, and a second bracket 53;

[0051] The lifting motor 47 is installed on the second bracket 53 and is connected to the second ball screw 48 through the third synchronous belt 52. Both the second connecting block 51 and the second ball screw 48 are installed on the linear guide rail. Both ends of the second ball screw 48 are fixedly connected to the third linear guide rail 49 through the second bearing base 50. The second mounting plate 46 is connected to the second ball screw 48 through the second connecting block 51. The second connecting block 51 is threadedly connected to the second ball screw 48. Driven by the lifting motor 47, the second mounting plate 46 can move along the linear guide rail.

[0052] The outer glaze and outer sand mechanism consists of an outer glaze device, a sandblasting device, a purging mechanism, a product rotation and lifting device, and a sand material collection box.

[0053] The outer glaze mechanism includes: a sponge roller brush 54, a roller brush servo driver 55, a second cylinder 56, an intermediate sponge roller 57 and its second rotating motor 58, a glaze replenishing brush 59, a brush glaze replenishing assembly 60, a sanded glaze bucket 61, a sponge roller brush swinging mechanism 62, etc.

[0054] The glaze replenishing brush 59 is connected to the brush glaze replenishing assembly 60. The brush glaze replenishing assembly 60 is connected to the second cylinder 56. The second cylinder 56 drives the brush glaze replenishing assembly 60 to dip the sanded glaze from the sanded glaze bucket 61. The intermediate sponge roller 57 is controlled to rotate by the second rotating motor 58. The sponge roller brush 57 is connected to the sponge roller brush swinging mechanism 62. The sponge roller brush swinging mechanism is connected to the roller brush servo driver 55 to control the roller brush swing. The sponge roller brush 54 dips the glaze from the intermediate sponge roller 57 under the drive of the roller brush servo driver 55, and then brushes the glaze onto the outer surface of the product head under the drive of the roller brush servo driver 55.

[0055] The outer sand mechanism includes a sandblasting assembly, a purging assembly, a product rotation and lifting assembly, and a sand material collection box;

[0056] The sandblasting assembly includes: a sand box 63, a sand material conduit 64, a sandblasting nozzle 65, a servo lifting mechanism 66;

[0057] The sand material falls by its own weight to the position of the sandblasting nozzle 65. Compressed air is introduced into the sandblasting nozzle 65. After the glaze brushing is completed, the compressed air solenoid valve is opened, and compressed air is introduced to blow out the sand material, which is sprayed onto the product head. Driven by the servo lifting mechanism 66 to move downward, the sand material is evenly sprayed on the glaze coating area, and after moving to the lower limit position according to the set position, the sandblasting ends, and the servo lifting mechanism 66 moves upward to reset.

[0058] The purging assembly includes a universal conduit 67 and a blowing nozzle 68;

[0059] Compressed air is introduced to start purging under the control of the solenoid valve. When the sandblasting action starts, purging is also started simultaneously to purge the sand material falling on the product umbrella leaves clean.

[0060] The product rotation and lifting assembly includes: a lifting motor 69, a fourth synchronous belt 70, a third connecting block 71, a third mounting plate 72, a third bearing base 73, a screw rod 74, a third bracket 75, a third rotating motor 76, and a push rod 77;

[0061] The lifting motor 69 is installed on the third bracket 75. The lifting motor 69 is connected to the screw rod 74 through the fourth synchronous belt 70. Both ends of the screw rod 74 are fixed by the third bearing base 73. The third connecting block 71 is connected to the screw rod 74, and the third mounting plate 72 is connected to the third connecting block 71. The upper end of the third mounting plate 72 is connected to the push rod 77. The screw rod 74 is rotated by driving the fourth synchronous belt 70 by the lifting motor 69 to control the rise of the third mounting plate 72, separating the product from the conveyor belt. Then, the turntable drives the product to start rotating under the drive of the third rotating motor 76, and then the glazing and sanding operations are started.

[0062] The sand collecting box is located below the upper outer glazing and outer sanding station to collect the sand falling from the sanding operation.

[0063] The automatic sand recycling device uses a vacuum suction method to recycle the recycled sand at the inner and outer sanding stations respectively and return it to the inner and outer sand boxes.

[0064] The working principle and usage process of the present utility model are as follows:

[0065] The principle is as follows: The loading and unloading stations can cooperate with the manipulator to achieve automatic loading and unloading, or manual loading and unloading operations can be performed. The inner glazing process uses a centrifugal glazing method to splash the glaze onto the inner wall of the head of the insulator, effectively eliminating the disadvantages of the current dipping glazing production method, such as the inner bottom surface of the head being contaminated with glaze and the difficulty in controlling the glazing position accuracy. The glazing position size can be accurately controlled and adjusted (the accuracy can reach below 0.1 mm), and it consists of a glaze supply device, a glazing mechanism, and a moving mechanism; the inner sanding station consists of a sand storage box, a quantitative sand supply device, a sand throwing device, and a moving mechanism. The sand flows from the sand storage box through the quantitative sand supply device and is quantitatively supplied to the sand throwing device. The sand throwing device rotates to throw out the sand, and while throwing the sand, the moving mechanism drives the sand throwing device to move together to complete the inner sanding operation.

[0066] The automatic glazing and sanding process steps for the inner surface of the head of the cylindrical ceramic insulator are as follows:

[0067] Step 1: After starting, the conveyor belt automatically transports the product to the glazing station, and the product is placed with its head facing up. After the equipment automatically detects the product, the three-jaw positioning mechanism is started to clamp and position the product;

[0068] Step 2: The moving mechanism sends the glazing device into the set position inside the head cavity of the product;

[0069] Step 3: The glaze spraying mechanism starts to drive the glaze spraying umbrella disk to rotate. Meanwhile, the glaze supply solenoid valve opens, and glaze spraying begins.

[0070] Step 4: The moving mechanism runs downward at a constant speed to the set lower limit position, so that the glaze is evenly splashed onto the set surface of the inner cavity of the product head.

[0071] Step 5: The glaze supply solenoid valve and the rotational movement are closed, and the glaze spraying mechanism runs downward to the starting origin.

[0072] Step 6: The cleaning solenoid valve opens, water supply to the glaze spraying umbrella disk is started, and meanwhile, the glaze spraying umbrella disk starts to rotate to clean the umbrella disk.

[0073] Step 7: The conveyor belt starts, and the product is sent to the next inner sanding station.

[0074] Step 8: After the inner sanding station detects the product, the sand spraying cylinder runs upward to the in-place position and then starts the rotational movement. Meanwhile, the sand pushing motor starts to drive the sand pushing piston to move upward to push out the sand material, and the moving mechanism is controlled by the servo motor to move to the lower limit position at the set speed, and the sand material is splashed onto the glazed part of the product head.

[0075] Step 9: The sand spraying cylinder stops rotating and continues to run downward to the origin position.

[0076] Step 10: The metering sand supply valve opens, the set amount of sand (adjustable) is added to the intermediate transfer funnel, and the intermediate transfer funnel transfers the sand material into the sand spraying cylinder to prepare for the next sand spraying.

[0077] Automation process for glazing and sanding the outer surface of the head of the cylindrical head porcelain insulator:

[0078] Step 1: The product after inner sanding is conveyed to the outer glazing and sanding station by the conveyor belt.

[0079] Step 2: The rotating disk rises to lift the product off the conveyor belt and starts to rotate.

[0080] Step 3: The glazing brush is driven by the servo motor to lean against the outer surface of the product head at the set position (adjustable) and rotates in the direction opposite to the rotation direction of the product to apply the glaze to the product surface by rolling the brush.

[0081] Step 4: After brushing for the set time (adjustable), the brush returns to the original position, then leans against the intermediate sponge brush, and the glazing brush replenishes the glaze. After the glaze replenishment is completed, it returns to the origin to wait for the next cycle.

[0082] Step 5: The glaze replenishment brush extends downward into the glaze bucket to dip the glaze, then returns to the original position after lifting and leans against the intermediate brush for glaze replenishment. After the glaze replenishment is completed, the glaze replenishment brush returns to the original position to wait for the next cycle.

[0083] Step 6, synchronized with Step 5, the sandblasting nozzle moves downward. After reaching the set position (which can be adjusted), sandblasting is started. At the same time, the nozzle moves upward at the set speed and to the set position. After reaching the position, sandblasting stops and it continues to move upward and return to the original position. During sandblasting, the purging device is also started to purge the sand on the umbrella surface of the product. The purging is delayed and closed after the sandblasting ends (the duration can be set).

[0084] Step 7, the rotating disk stops rotating and moves downward to place the product back on the conveyor belt, and the lifting mechanism resets.

[0085] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A device for glazing and sanding the head of a porcelain insulator, characterized in that It includes a conveying mechanism, on which an inner glaze application mechanism, an inner sand application mechanism, an outer glaze application mechanism, and an outer sand application mechanism are sequentially arranged. The inner glaze application mechanism includes a first glaze supply assembly. At the output end of the first glaze supply assembly, there is a glaze throwing cover, which is fixedly connected to a rotating rod. The rotating rod is rotatably connected to a first mounting plate, and the first mounting plate is arranged on a first lifting frame in a liftable manner. The inner sand application mechanism includes a sand storage box, a quantitative sand supply assembly, a sand throwing assembly, and a second lifting frame. The sand throwing assembly is used to throw sand onto the inner wall of the cylindrical head porcelain insulator and is arranged on the second lifting frame in a liftable manner. The sand storage box is connected to the sand throwing assembly through the quantitative sand supply assembly. The outer glaze application mechanism includes a sponge roller brush, which is controlled by a sponge roller brush swinging assembly and is used to apply glaze to the outer wall of the cylindrical head porcelain insulator. The outer sand application mechanism includes a sand blasting nozzle and a third lifting frame. The sand blasting nozzle is connected to a sand box, and the third lifting frame is used to support the porcelain insulator and control the lifting of the porcelain insulator.

2. The glaze and sanding device for the head of a porcelain insulator according to claim 1, wherein, The first glaze supply assembly includes a water tank and a glaze tank. The water tank is connected to the glaze throwing cover through a water delivery pipe, and the glaze tank is connected to the glaze throwing cover through a glaze delivery pipe. The glaze tank is a constant-pressure airtight mixer, and a stirring blade is arranged inside the constant-pressure airtight mixer for stirring the materials in the glaze tank.

3. The glaze and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The rotating rod is driven by a first rotating motor, which is fixedly connected to the first mounting plate. The first mounting plate is connected to a first connecting block, and the first connecting block is connected to a first ball screw and cooperates with a first linear guide rail. The first ball screw is driven by a lifting motor.

4. A glazing and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The sand throwing assembly includes a sand throwing bucket, which is driven by a sand throwing rotating motor. The quantitative sand supply assembly includes a connecting block, which is connected to a sand pushing screw. Both of them cooperate with a second linear guide rail. Both ends of the sand pushing screw are fixedly connected to the second linear guide rail through bearing seats. A connecting mechanism is connected to the sand pushing screw thread. At the top of the connecting mechanism, there is a sand pushing piston, and at the top of the sand pushing piston, there is a sand pushing plate. The sand pushing piston is driven by a sand pushing motor.

5. A glazing and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The outer glaze application mechanism further includes a glaze replenishing brush and an intermediate sponge roller. The glaze replenishing brush is connected to a cylinder, and the cylinder is used to drive the glaze replenishing brush to dip into the sanded glaze bucket to pick up sanded glaze. The intermediate sponge roller is arranged between the glaze replenishing brush and the sponge roller brush and is used to supply sanded glaze to the sponge roller brush through the glaze replenishing brush.

6. The glaze and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The inner glaze application mechanism further includes a three-jaw positioning assembly, which includes three rubber-coated roller cylinders. The rubber-coated roller cylinders are rotatably arranged on a jaw support. The opening and closing of the jaw support are controlled by a second servo motor, which is fixedly connected to an outer frame.

7. A glazing and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The outer sand application mechanism further includes a purging assembly, which includes a blowing nozzle and a universal conduit. The blowing nozzle is arranged on one side of the sand blasting nozzle. One end of the universal conduit is connected to the blowing nozzle, and the other end is connected to an air compressor.

8. A glazing and sanding device for the head of a porcelain insulator according to claim 1, characterized in that, The third lifting frame includes a third bracket, on which a jacking motor is fixedly connected. The jacking motor is in transmission connection with a screw rod. Both ends of the screw rod are fixed by a third bearing base, and the third bearing base is fixedly connected to the third bracket. A third mounting plate is arranged on the screw rod, and the screw rod is used to drive the third mounting plate to move up and down. A jacking rod is fixedly connected to the third mounting plate, and the jacking rod is used to cooperate with the porcelain insulator.

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