Fine grinding equipment and grinding method for porcelain insulator

Abstract

The invention discloses fine grinding equipment and a grinding method for porcelain insulators, and relates to the field of insulator production, the fine grinding equipment comprises a pug refining barrel and a grinding box, the bottom end of the grinding box communicates with the top end of the pug refining barrel, two grinding rollers are rotationally connected into the grinding box, the two grinding rollers are arranged in a mutually attached mode, and the two grinding rollers are arranged in a matched mode. A heating roller is rotatably connected to the interior of the pug refining barrel, a protruding end is fixed to the outer side of the heating roller, and the two grinding rollers rotate oppositely, so that falling pug is subjected to primary grinding, large particles in the pug are ground, bubbles in the pug are discharged through extrusion, extrusion and re-grinding are conducted in the pug refining barrel, and the pug refining efficiency is improved. During secondary grinding, the vacuum pump continuously extracts air, keeps a vacuum environment, absorbs bubbles and moisture in the pug and discharges the bubbles and moisture out of the pug cylinder, so that the fineness and the purity of the pug are improved, and meanwhile, through primary grinding, the working pressure of the pug cylinder can be reduced, and the service life of the pug cylinder can be prolonged.

Description

Technical Field

[0001] The invention relates to the field of insulator production, and in particular to fine grinding equipment and a grinding method for porcelain insulators. Background Art

[0002] The production process of porcelain insulators can be divided into five parts: clay making, molding, glazing, firing, assembly and inspection. The molding process includes vacuum clay refining, molding, repairing and drying. Vacuum clay refining is to use a vacuum clay refining machine to remove bubbles in the clay material to form a solid clay segment.

[0003] The existing vacuum mud refining machine usually only undergoes one extrusion process during the extrusion and refining process of the mud material, and the fineness of the mud material needs to be improved. If the extrusion process is repeated, the working pressure of the mud refining machine will increase, which will easily reduce the service life. At the same time, repeated work will increase the working time.

[0004] Therefore, it is necessary to propose a fine grinding device and a grinding method for porcelain insulators to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a fine grinding device and a grinding method for porcelain insulators, so as to solve the problem that the existing vacuum mud refiner usually only undergoes one extrusion process during the extrusion and mud refining process of the mud material, and the fineness of the mud material needs to be improved. If the extrusion process is repeated, the working pressure of the mud refiner will increase, which will easily reduce the service life. At the same time, repeated work will increase the working time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fine grinding device for porcelain insulators, comprising a mud kneading cylinder and a grinding box, the bottom end of the grinding box is connected to the top end of the mud kneading cylinder, the grinding box is rotatably connected to two grinding rollers, the two grinding rollers are arranged in close contact with each other, the mud kneading cylinder is rotatably connected to a heating roller, the outer side of the heating roller is fixed with a protruding end, the protruding end is spirally arranged along the length direction of the heating roller, spikes are fixed on the outer surface of the heating roller, one end of one of the grinding rollers extends out of the grinding box, and a fixing ring is sleeved on the outer side of the protruding end of the grinding box, a connecting rod is fixed to the bottom end of the fixing ring, a spring is fixed to the bottom end of the connecting rod, a hitting ball is fixed to the bottom end of the spring, a fixed ball is arranged on the outer side of the mud kneading cylinder, and the fixed ball and the hitting ball touch each other.

[0007] Preferably, the outer side of the protruding end is in contact with the inner wall of the mud kneading tube, a plurality of the spikes are provided, and the tips of the plurality of spikes face the inner wall of the mud kneading tube, and the length of the plurality of spikes is shorter than the thickness of the protruding end.

[0008] Preferably, a transparent window is provided on the upper surface of the clay kneading tube, and the fixed ball is fixed on the transparent window.

[0009] Preferably, a vacuum pump is fixedly connected to the bottom end of the transparent window, an air pipe is connected to one side of the vacuum pump, and the air pipe is connected to the inside of the mud kneading cylinder.

[0010] Preferably, two second motors are fixed to one side of the grinding box, and one end of the two grinding rollers are fixedly connected to the rotating shafts of the two second motors.

[0011] Preferably, one side of the mud kneading cylinder is connected with a connecting port, the bottom end of the grinding box is connected with a funnel, and the bottom end of the funnel is connected with the connecting port.

[0012] Preferably, both ends of the heating roller extend out of the mud kneading tube respectively, and a first motor and a support seat are respectively provided at both ends of the mud kneading tube. One end of the heating roller extends out of the connecting port, a driving shaft is provided on the side of the first motor close to the mud kneading tube, and the extended end of the heating roller is connected to the driving shaft, and the other end of the heating roller is rotatably connected to the support seat.

[0013] Preferably, a discharge port is provided on one side of the bottom end of the mud kneading tube away from the connecting port, and the discharge port is communicated with the interior of the mud kneading tube.

[0014] Preferably, the outer surfaces of the two grinding rollers are both rough surfaces, the top of the grinding box is provided with an opening, a top cover is provided on the opening, and an air pump is fixedly connected to the top of the top cover.

[0015] The present invention also discloses a fine grinding method for porcelain insulators, comprising the following steps: a first step, pouring clay required for making insulators into a grinding box, and automatically falling into a connecting port through preliminary grinding in the grinding box; a second step, as the heating roller and the protruding end rotate, the falling clay is driven to be extruded and re-grinded in a clay kneading tube; during the secondary grinding, a vacuum pump continuously extracts air to maintain a vacuum environment and reduce bubbles and moisture in the clay; a third step, the clay moves along the length direction of the clay kneading tube until it is discharged from a discharge port, thereby completing the output of the clay.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The two grinding rollers rotate relative to each other, so as to perform preliminary grinding on the falling clay, crush the large particles in the clay, and expel the bubbles in the clay by squeezing. As the heating roller and the protruding end rotate, the clay is driven into the clay kneading tube, and then the clay is ground for the second time through the pressurization and re-grinding between the outer side of the heating roller and the inner wall of the clay kneading tube to improve the uniformity of the clay grinding. At the same time, the heating roller will heat the clay and expel the moisture in the clay.

[0018] 2. Furthermore, when the heating roller rotates, it drives multiple spikes to penetrate into the interior of the clay material, so that the gas in the clay material can be discharged smoothly. At the same time, the heat of the heating roller will be transferred to the spikes, and the spikes drive the heat into the interior of the clay material to improve the uniformity of heating.

[0019] 3. During the extrusion and re-grinding in the mud cylinder, the vacuum pump continuously extracts air to maintain a vacuum environment, absorbs the bubbles and moisture in the mud, and discharges them out of the mud cylinder to improve the fineness and purity of the mud. At the same time, after the initial grinding, the working pressure of the mud cylinder can be reduced and the service life can be increased.

[0020] 4. At the same time, when the grinding roller rotates, the grinding roller drives the corresponding connecting rod to rotate outside the grinding box. When the connecting rod rotates, it can drive the striking ball to intermittently collide with the fixed ball. Vibration will be generated during the collision, and the vibration will be transmitted to the inside of the mud kneading tube, so that the sticky mud on the inner wall of the mud kneading tube can fall down, avoiding the problem of mud sticking to the inner wall and being difficult to discharge. At the same time, due to the effect of heating, the moisture of the mud can be reduced and the stickiness can be reduced.

[0021] 5. When the mud is ground and discharged from the discharge port, the top cover can be placed on the opening to block the top of the grinding box to prevent dust and water vapor from entering. At the same time, after the air pump is started, the heating roller and the grinding roller continue to rotate, and the generated wind force can be input into the two grinding rollers. The blowing effect of the wind can quickly dry the residual mud on the grinding roller and the heating roller to reduce stickiness. The wind force can also promote the discharge of the residual mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure is a schematic structural diagram of the fine grinding equipment for porcelain insulators of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the heating roller, the protruding end and the spikes of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the top cover and the air pump of the present invention.

[0025] In the figure: 1. first motor; 2. connecting port; 3. driving shaft; 4. kneading tube; 5. transparent window; 6. vacuum pump; 7. air pipe; 8. grinding box; 9. second motor; 10. funnel; 11. discharge port; 12. heating roller; 13. protruding end; 14. spike; 15. fixing ring; 16. connecting rod; 17. fixing ball; 18. striking ball; 19. spring; 20. grinding roller; 21. supporting seat; 22. top cover; 23. air pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] The present invention provides Figure 1 - Figure 3 The fine grinding equipment for porcelain insulators shown in the figure comprises a mud kneading tube 4 and a grinding box 8. The bottom end of the grinding box 8 is connected to the top end of the mud kneading tube 4. The top end of the grinding box 8 is provided with an opening, and a top cover 22 is provided on the opening. The mud material for making the insulator can be poured into the interior of the grinding box 8 through the opening.

[0028] Two grinding rollers 20 are rotatably connected inside the grinding box 8. The two grinding rollers 20 are arranged close to each other. Two second motors 9 are fixed to one side of the grinding box 8. One end of the two grinding rollers 20 is fixedly connected to the rotating shafts of the two second motors 9.

[0029] By starting the two second motors 9, the two second motors 9 drive the corresponding grinding rollers 20 to rotate relative to each other, so as to perform preliminary grinding on the falling mud, crush the large particles in the mud, and expel the bubbles in the mud by squeezing, so that the mud is more delicate. At the same time, the outer surfaces of the two grinding rollers 20 are set to rough surfaces, which can increase friction and make the particles in the mud more susceptible to squeezing and collision, thereby crushing.

[0030] One side of the mud kneading tube 4 is connected to a connecting port 2, the bottom end of the grinding box 8 is connected to a funnel 10, the bottom end of the funnel 10 is connected to the connecting port 2, and a discharge port 11 is provided on the side of the bottom end of the mud kneading tube 4 away from the connecting port 2, the discharge port 11 is connected to the interior of the mud kneading tube 4, and the crushed mud can be input into the connecting port 2 through the funnel 10 for the second step of mud kneading.

[0031] A heating roller 12 is rotatably connected inside the mud kneading cylinder 4, a protruding end 13 is fixed on the outer side of the heating roller 12, and the protruding end 13 is spirally arranged along the length direction of the heating roller 12, and a spike 14 is fixed on the outer surface of the heating roller 12, one end of one grinding roller 20 extends out of the grinding box 8, and a fixing ring 15 is sleeved on the outer side of the protruding end of the grinding box 8, a connecting rod 16 is fixed to the bottom end of the fixing ring 15, a spring 19 is fixed to the bottom end of the connecting rod 16, and a striking ball 18 is fixed to the bottom end of the spring 19, and a fixing ball 17 is arranged on the outer side of the mud kneading cylinder 4, and the fixing ball 17 and the striking ball 18 touch each other.

[0032] The outer side of the protruding end 13 is in contact with the inner wall of the mud training tube 4, a plurality of spikes 14 are provided, and the tips of the plurality of spikes 14 are facing the inner wall of the mud training tube 4, the length of the plurality of spikes 14 is shorter than the thickness of the protruding end 13, the two ends of the heating roller 12 extend out of the mud training tube 4 respectively, the two ends of the mud training tube 4 are respectively provided with a first motor 1 and a support seat 21, one end of the heating roller 12 extends out of the connecting port 2, a driving shaft 3 is provided on the side of the first motor 1 close to the mud training tube 4, and the protruding end of the heating roller 12 is connected to the driving shaft 3, and the other end of the heating roller 12 is rotatably connected to the support seat 21.

[0033] The first motor 1 is started, thereby driving the heating roller 12 and the protruding end 13 to rotate. As the heating roller 12 and the protruding end 13 rotate, the clay material falling in the connecting port 2 can be driven to move toward the support seat 21. After the clay material enters the clay kneading tube 4, the clay material is pressurized and re-grinded between the outer side of the heating roller 12 and the inner wall of the clay kneading tube 4 to grind the clay material for a second time, thereby improving the uniformity of the clay grinding. At the same time, the heating roller 12 will heat the clay material and discharge the moisture in the clay material.

[0034] Furthermore, when the heating roller 12 rotates, it drives multiple spikes 14 to penetrate into the interior of the clay material, so that the gas in the clay material can be discharged smoothly. At the same time, the heat of the heating roller 12 will be transferred to the spikes 14, and the spikes 14 will drive the heat into the interior of the clay material to improve the uniformity of heating.

[0035] A vacuum pump 6 is fixedly connected to the bottom end of the transparent window 5 , and an air pipe 7 is connected to one side of the vacuum pump 6 . The air pipe 7 is connected to the inside of the mud kneading tube 4 . An air pump 23 is fixedly connected to the top end of the top cover 22 .

[0036] While extrusion and re-grinding are carried out in the mud kneading cylinder 4, the vacuum pump 6 continuously extracts air to maintain a vacuum environment, absorbs bubbles and moisture in the mud, and discharges them to the outside of the mud kneading cylinder 4, thereby improving the fineness and purity of the mud. At the same time, since it has undergone the initial grinding, the working pressure of the mud kneading cylinder 4 can be reduced and the service life can be increased.

[0037] At the same time, when the grinding roller 20 rotates, the grinding roller 20 drives the corresponding connecting rod 16 to rotate outside the grinding box 8. When the connecting rod 16 rotates, it can drive the striking ball 18 to intermittently collide with the fixed ball 17. Vibration will be generated during the collision, and the vibration will be transmitted to the inside of the mud training tube 4, so that the sticky mud on the inner wall of the mud training tube 4 can fall down, avoiding the problem of mud sticking to the inner wall and being difficult to discharge. At the same time, due to the effect of heating, the moisture content of the mud can be reduced and the stickiness can be reduced.

[0038] When the mud is ground and discharged from the discharge port 11, the top cover 22 can be placed on the opening to shield the top of the grinding box 8 to prevent dust and moisture from entering from the outside. At the same time, after the air pump 23 is started, the heating roller 12 and the grinding roller 20 continue to rotate, and the generated wind force can be input into the two grinding rollers 20. The blowing effect of the wind can quickly dry the residual mud on the grinding roller 20 and the heating roller 12 to reduce the stickiness, and the wind force can promote the discharge of the residual mud.

[0039] A transparent window 5 is provided on the upper surface of the mud kneading tube 4 , and a fixed ball 17 is fixed on the transparent window 5 , so that personnel can observe the mud kneading process inside the mud kneading tube 4 from the outside.

[0040] The present invention also discloses a fine grinding method for a porcelain insulator, comprising the following steps:

[0041] S1, pour the mud material needed for making the insulator into the grinding box 8, and the mud material will automatically fall into the connection port 2 after preliminary grinding in the grinding box 8;

[0042] S2. As the heating roller 12 and the protruding end 13 rotate, the falling clay is squeezed and re-milled in the clay kneading tube 4. During the secondary milling, the vacuum pump 6 continuously extracts air to maintain a vacuum environment and reduce bubbles and moisture in the clay.

[0043] S3, the clay material moves along the length direction of the clay kneading tube 4 until it is discharged from the discharge port 11, completing the output of the clay material.

Claims

1. A fine grinding device for porcelain insulators, comprising a clay kneading cylinder (4) and a grinding box (8), characterized in that: The bottom end of the grinding box (8) is connected to the top end of the mud kneading tube (4); the grinding box (8) is internally connected to two grinding rollers (20) for rotation; the two grinding rollers (20) are arranged to fit each other; the mud kneading tube (4) is internally connected to a heating roller (12) for rotation; a protruding end (13) is fixed to the outside of the heating roller (12); the protruding end (13) is spirally arranged along the length direction of the heating roller (12); a spike (13) is fixed to the outer surface of the heating roller (12) 4), one end of one grinding roller (20) extends out of the grinding box (8), and a fixing ring (15) is sleeved on the outer side of the protruding end of the grinding box (8), a connecting rod (16) is fixed to the bottom end of the fixing ring (15), a spring (19) is fixed to the bottom end of the connecting rod (16), a striking ball (18) is fixed to the bottom end of the spring (19), and a fixing ball (17) is arranged on the outer side of the mud kneading tube (4), and the fixing ball (17) and the striking ball (18) touch each other.

2. The fine grinding device for porcelain insulators according to claim 1, characterized in that: The outer side of the protruding end (13) is in contact with the inner wall of the mud kneading tube (4), a plurality of the spikes (14) are provided, and the tips of the plurality of spikes (14) face the inner wall of the mud kneading tube (4), and the length of the plurality of spikes (14) is shorter than the thickness of the protruding end (13).

3. The fine grinding device for porcelain insulators according to claim 1, characterized in that: The upper surface of the clay kneading tube (4) is provided with a transparent window (5), and the fixed ball (17) is fixed on the transparent window (5).

4. The fine grinding device for porcelain insulators according to claim 3 is characterized in that: The bottom end of the transparent window (5) is fixedly connected to a vacuum pump (6), one side of the vacuum pump (6) is connected to an air pipe (7), and the air pipe (7) is connected to the inside of the clay kneading tube (4).

5. The fine grinding device for porcelain insulators according to claim 1, characterized in that: Two second motors (9) are fixed on one side of the grinding box (8), and one end of the two grinding rollers (20) is fixedly connected to the rotating shafts of the two second motors (9).

6. The fine grinding device for porcelain insulators according to claim 1, characterized in that: One side of the mud kneading cylinder (4) is connected to a connection port (2), the bottom end of the grinding box (8) is connected to a funnel (10), and the bottom end of the funnel (10) is connected to the connection port (2).

7. The fine grinding device for porcelain insulators according to claim 1, characterized in that: The two ends of the heating roller (12) extend out of the mud training tube (4) respectively, and the two ends of the mud training tube (4) are respectively provided with a first motor (1) and a support seat (21), one end of the heating roller (12) extends out of the connection port (2), a driving shaft (3) is provided on the side of the first motor (1) close to the mud training tube (4), and the extended end of the heating roller (12) is connected to the driving shaft (3), and the other end of the heating roller (12) is rotatably connected to the support seat (21).

8. The fine grinding device for porcelain insulators according to claim 1, characterized in that: A discharge port (11) is provided on a side of the bottom end of the mud kneading tube (4) away from the connection port (2), and the discharge port (11) is communicated with the interior of the mud kneading tube (4).

9. The fine grinding device for porcelain insulators according to claim 1, characterized in that: The outer surfaces of the two grinding rollers (20) are both rough surfaces. The top of the grinding box (8) is provided with an opening, and a top cover (22) is provided on the opening. The top of the top cover (22) is fixedly connected to an air pump (23).

10. A fine grinding method for porcelain insulators, characterized in that: The fine grinding device for porcelain insulators according to any one of claims 1 to 9 further comprises the following steps: S1, pouring the clay required for making the insulator into the interior of the grinding box (8), and automatically falling into the interior of the connection port (2) through preliminary grinding in the grinding box (8); S2, as the heating roller (12) and the protruding end (13) rotate, the falling clay material is driven to be squeezed and re-milled in the clay kneading cylinder (4). During the secondary milling, the vacuum pump (6) continuously extracts air to maintain a vacuum environment and reduce bubbles and moisture in the clay material; S3, the clay material moves along the length direction of the clay kneading tube (4) until it is discharged from the discharge port (11), thus completing the output of the clay material.

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