Grinding device and technology for zirconia ceramic plunger

Abstract

The invention is suitable for the technical field of zirconia ceramic plungers, and provides a zirconia ceramic plunger grinding device and a process thereof.The zirconia ceramic plunger grinding device comprises a shell, a feeding hopper and a discharging hopper which are communicated with the shell are arranged on the top and the bottom of the shell respectively, and a pretreatment mechanism and a grinding mechanism are arranged in the shell; according to the device, after being fed from the feeding hopper, a blank falls onto a crushing plate, and the blank on the crushing plate is pre-processed and crushed by utilizing a first crushing plate and a second crushing plate on a first rotating roller and a second rotating roller which rotate relatively; according to the invention, the blank is processed into a blank block with a small volume, the ingredient block falls onto the grinding mechanism from the first through groove and the second through groove for subsequent fine grinding, and the manner can crush the large-volume blank block to form the ingredient block with a small volume, so that the first through groove and the second through groove are prevented from being blocked in the falling process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of zirconia ceramic plungers, and particularly relates to a grinding device for a zirconia ceramic plunger and a process thereof. BACKGROUND

[0002] Zirconia ceramics are white, yellow or gray when containing impurities, and generally contain HfO2 and are not easy to separate. Pure ZrO2 has three crystal states at normal pressure. The production of zirconia ceramics requires the preparation of high-purity, good-dispersion, ultra-fine-particle and narrow-particle-size-distribution powders. There are many methods for preparing zirconia ultra-fine powder. The purification of zirconia mainly includes chlorination and thermal decomposition method, alkali metal oxidation decomposition method, lime melting method, plasma arc method, precipitation method, colloid method, hydrolysis method and spray pyrolysis method.

[0003] The Chinese utility model patent with the publication number CN215999783U discloses a pore-free zirconia ceramic plunger grinding device. The device comprises a base, two installation plates are installed on the top of the base through bolts, a top seat is installed on the top of the installation plate through a bolt, two telescopic cylinders are installed on the bottom of the top seat through bolts, a push block is installed on the output end of the telescopic cylinder through a bolt, springs are inserted into the push block, plug rods are welded on the outer wall of the end of the springs close to each other, auxiliary blocks are installed on the outer wall of the end of the plug rods close to each other through bolts, and auxiliary wheels are movably installed in the auxiliary blocks through bearings. The push block can limit the zirconia ceramic plunger through the action of the telescopic cylinder, thereby improving the processing effect of the zirconia ceramic plunger. The springs and the plug rods can facilitate the operator to assemble the zirconia ceramic plungers of different sizes.

[0004] However, the above-mentioned utility model patent has the following technical problems in actual use:

[0005] Firstly, the ceramic plungers to be ground are put into the rotating grooves on the top seat, and then fall between the two grinding rollers to realize the grinding of the ceramic plungers. However, when the ceramic plungers with large volume fall between the two auxiliary blocks, the distance between the two auxiliary blocks cannot meet the passing requirement of the ceramic plungers, so the ceramic plungers will be stuck between the two auxiliary blocks, thereby causing blockage of the subsequent feeding and affecting the passing of the subsequent feeding.

[0006] Secondly, the above-mentioned device lacks a pre-pulverizing device for the ceramic plungers in the top seat, so that the ceramic plungers with large volume need a long time to be pulverized and ground by the grinding rollers after falling between the two grinding rollers, thereby greatly increasing the working time required for grinding. In addition, the large ceramic plungers will also cause blockage of the normal rotation of the grinding rollers, thereby affecting the service life of the above-mentioned device. SUMMARY

[0007] The application provides a grinding device for zirconia ceramic plungers and a process thereof, and aims to solve the problem of lacking a pre-pulverizing device for large-volume ceramic plungers in the above-mentioned device mentioned in the background, which may cause the large-volume ceramic plungers to be stuck between the two auxiliary blocks and unable to fall onto the grinding roller, resulting in the subsequent material falling being blocked, and also increases the grinding and pulverizing time of the large-volume ceramic plungers by the grinding roller, affecting the work efficiency.

[0008] The application is implemented as follows: a grinding device for zirconia ceramic plungers, comprising: a shell, the top and the bottom of which are respectively provided with a feeding hopper and a discharging hopper which are in communication with the shell, a pretreatment mechanism and a grinding mechanism are arranged in the shell, the pretreatment mechanism is located above the grinding mechanism, and is used for pre-processing the green material fed by the feeding hopper, wherein the pretreatment mechanism has a rotating assembly which is rotationally connected with the inner wall of the shell, and a pulverizing assembly is arranged at the center position of the rotating assembly, the pulverizing assembly is located above the grinding mechanism, and the green material fed via the feeding hopper falls onto the pulverizing assembly and is pre-pulverized by the rotation of the rotating assembly; in this scheme, when the green material is fed by the feeding hopper, it falls onto the pulverizing plate, and the first crushing plate and the second crushing plate on the relatively rotating first rotating roller and the second rotating roller pre-process and crush the green material on the pulverizing plate, so that the green material is processed into green material blocks with smaller volumes, and the green material blocks fall onto the grinding mechanism via the first through slot and the second through slot for subsequent fine grinding, which can crush the large-volume green material blocks, so that the green material blocks with smaller volumes are formed, thereby avoiding the blockage of the first through slot and the second through slot during the falling process, and also reducing the grinding time of the subsequent grinding mechanism, and improving the efficiency in the grinding process.

[0009] In addition, when the first crushing plate (the second crushing plate) presses the green material on the pulverizing plate, the pulverizing plate moves downward in the vertical direction, at this time, the reset spring is deformed and compressed under the pressing force, and when the reset spring is contracted to the shortest stroke, it reversely supports the pulverizing plate, the first crushing plate (the second crushing plate) pulverizes the green material, the green material is discharged along the first through slot and the second through slot, the reset spring rebounds after losing the pressing force, and drives the pulverizing plate to reset, so that the pulverizing plate is elastically shaken, and the residual green material thereon enters the first through slot and the second through slot along the inclined guide slot, and the green material is quickly discharged.

[0010] Preferably, the rotating assembly comprises: a first rotating roller horizontally arranged in the shell, a second rotating roller arranged in parallel on one side of the first rotating roller, the first rotating roller and the second rotating roller are both rotationally connected with the inner wall of the shell, a first motor is fixedly connected to the outer wall of the shell, the output end of the first motor is fixedly connected with one end of the first rotating roller, the other end of the first rotating roller penetrates to the outside of the shell and is fixedly connected with a first transmission wheel, a transmission shaft is also fixedly connected to the outer wall of the shell, a second transmission wheel is fixedly connected to the outer wall of the transmission shaft, the first transmission wheel and the second transmission wheel are drivingly connected through a transmission belt, the transmission shaft is also fixedly connected with a first transmission gear, and the corresponding end of the second rotating roller is fixedly connected with a second transmission gear in meshing connection; in this scheme, the first motor and the transmission shaft are respectively arranged on the outer walls of the two sides of the shell, when the output end of the first motor rotates, it drives the first rotating roller to rotate, at the same time, the transmission shaft is driven to rotate synchronously through the transmission of the first transmission wheel, the second transmission wheel and the transmission belt, the first transmission gear on the transmission shaft drives the second transmission gear in meshing connection to rotate, thereby controlling the second rotating roller to rotate (the rotating direction is opposite to that of the first rotating roller), and then the first crushing plate and the second crushing plate on the outer wall thereof can be conveniently controlled to crush the embryo material on the crushing plate.

[0011] Preferably, the crushing assembly comprises: a crushing plate arranged between the first rotating roller and the second rotating roller, a plurality of first crushing pieces are equidistantly arranged on the outer wall of the first rotating roller along the length thereof, and a plurality of second crushing pieces are equidistantly arranged on the outer wall of the second rotating roller along the length thereof, wherein each first crushing piece is composed of a plurality of first crushing plates distributed at equal angles around the outer wall of the first rotating roller, and each second crushing piece is composed of a plurality of second crushing plates distributed at equal angles around the outer wall of the second rotating roller, a first through groove is formed in the side wall of the crushing plate corresponding to the plurality of first crushing plates, and a second through groove is formed in the side wall of the crushing plate corresponding to the plurality of second crushing plates, the first through groove and the second through groove are arranged in a staggered manner; in this scheme, when the first rotating roller and the second rotating roller rotate towards the crushing plate, the plurality of first crushing plates and the plurality of second crushing plates on the outer walls thereof rotate synchronously, and the first crushing plates and the second crushing plates exert a downward extrusion force on the embryo material on the crushing plate, thereby crushing the embryo material on the crushing plate, at the same time, the crushed embryo material blocks fall along the first through groove and the second through groove on the crushing plate to the grinding mechanism for subsequent fine grinding processing.

[0012] Preferably, a shaking assembly is further arranged below the crushing plate, which has: mounting seats symmetrically fixed to the inner walls of the two sides of the shell, a sunken groove is formed in the top wall of each mounting seat, a return spring is arranged in the sunken groove, and the top end of the return spring is fixed to the bottom wall of the crushing plate; in this scheme, when the first crushing plate (the second crushing plate) extrudes the embryo material on the crushing plate, the embryo material is not completely crushed at this time, the crushing plate is subjected to a downward pressure from the first crushing plate (the second crushing plate) and moves longitudinally downward, at the same time, the return spring is compressed under force, when the return spring is contracted to the shortest stroke, the crushing plate cannot continue to move downward and generates a supporting force on the crushing plate, which offsets the downward moving force of the crushing plate, so that the first crushing plate (the second crushing plate) can crush the embryo material, the crushed first crushing plate (the second crushing plate) moves out along the first through groove and the second through groove, and the return spring rebounds after losing the downward pressure and drives the crushing plate to move upward to reset, the crushing plate generates a shaking during the upward movement, drives the residual embryo material thereon to move to the first through groove and the second through groove, the embryo material with a smaller volume directly falls out along the first through groove and the second through groove, and the embryo material with a larger volume is clamped in the first through groove (the second through groove) for subsequent secondary crushing.

[0013] Preferably, a guide groove is formed in the top wall of the crushing plate and inclined downward from the side edge to the center thereof, and the guide groove is arranged in a V shape; in this scheme, the V-shaped guide groove arranged in the top wall of the crushing plate is used to facilitate the rolling of the embryo material and make it quickly move to the first through groove and the second through groove, the embryo material with a smaller volume directly falls out along the first through groove and the second through groove, and the embryo material with a larger volume is clamped in the first through groove (the second through groove) for subsequent secondary crushing.

[0014] Preferably, the grinding mechanism comprises: two crushing rollers symmetrically arranged in the shell, the two ends of the two crushing rollers are rotationally connected to the inner walls of the shell, a second motor is further fixed to the outer wall of the shell, the output end of the second motor is fixed to the end of one side of the crushing roller, the other end of the two crushing rollers penetrates to the outside of the shell and a drive gear is fixed to the outer wall thereof, and the two drive gears are meshed with each other; in this scheme, when the output end of the second motor rotates, it controls the rotation of one side of the crushing roller, the drive gear on the end of the crushing roller meshes with the drive gear on the end of the other crushing roller, so as to transmit the rotary kinetic energy to the other crushing roller and control the rotation of the other crushing roller, and the two crushing rollers rotate in opposite directions to finely grind the material block falling between them.

[0015] A process for grinding a zirconia ceramic plunger, comprising the following steps:

[0016] S1, the embryo material to be crushed and ground is poured into the shell from the feeding hopper;

[0017] S2, the embryo material falls on the crushing plate, the first rotating roller and the second rotating roller on both sides rotate towards the crushing plate, and the first crushing plate and the second crushing plate on the outer wall thereof are used for crushing the embryo material on the crushing plate, the crushed embryo material falls along the first through groove and the second through groove to the grinding mechanism (the first rotating roller is driven to rotate by the first motor output end, the first transmission wheel on the end of the first rotating roller drives the second transmission wheel and the transmission shaft to rotate through the transmission belt, the first transmission gear on the transmission shaft drives the second rotating roller to rotate through the second transmission gear, the first rotating roller and the second rotating roller rotate towards the crushing plate, and the first crushing plate and the second crushing plate on the outer wall thereof are used for crushing the embryo material on the crushing plate.);

[0018] S3, the pressing force generated by the first crushing plate and the second crushing plate when pressing the embryo material drives the crushing plate to move downward, when the pressure disappears, the crushing plate is reset and shaken off under the influence of the reset spring, so that the embryo material thereon moves to the first through groove and the second through groove along the inclined guide groove and is discharged;

[0019] S4, the embryo material pieces falling from the first through groove and the second through groove fall between the two crushing rollers, and the embryo material falling between the two crushing rollers is finely ground by the two crushing rollers rotating towards each other;

[0020] S5, the ground embryo material falls into the discharge hopper and is discharged along the discharge hopper.

[0021] Compared with the prior art, the beneficial effects of the zirconia ceramic plunger grinding device and process of the application are:

[0022] 1, when the embryo material is put into the feeding hopper, it falls on the crushing plate, the first crushing plate and the second crushing plate on the first rotating roller and the second rotating roller are used for pre-processing and crushing the embryo material on the crushing plate, so as to process the embryo material into small embryo material blocks, and the material blocks fall from the first through groove and the second through groove to the grinding mechanism for subsequent fine grinding, this method can crush the large embryo material blocks, form small material blocks, avoid the blockage of the first through groove and the second through groove during falling, and reduce the grinding time of the subsequent grinding mechanism, thereby improving the efficiency in the grinding process.

[0023] 2. When the first crushing plate (second crushing plate) presses down on the blank on the crushing plate, the crushing plate moves vertically downward. At this time, the return spring is deformed and compressed by the downward pressure. When the return spring contracts to its shortest stroke, it provides reverse support to the crushing plate. The first crushing plate (second crushing plate) crushes the blank, and the blank is discharged through the first and second through channels. After the return spring loses the downward pressure, it rebounds and drives the crushing plate to reset, causing the crushing plate to vibrate elastically. This allows the remaining blank on the plate to enter the first and second through channels through its inclined guide chute, achieving rapid discharge of the blank. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the present invention;

[0025] Figure 2 This is a top view of the pretreatment mechanism in this invention;

[0026] Figure 3 This is a schematic diagram of the crushing plate in this invention;

[0027] Figure 4 This is a schematic diagram of the jitter component in this invention;

[0028] Figure 5 This is a top view of the grinding mechanism in this invention;

[0029] In the picture:

[0030] 1. Shell; 11. Feed hopper; 12. Discharge hopper;

[0031] 2. Pre-treatment mechanism; 21. Rotating assembly; 211. First rotating roller; 212. Second rotating roller; 213. First motor; 214. First transmission wheel; 215. Transmission shaft; 216. Second transmission wheel; 217. Transmission belt; 218. First transmission gear; 219. Second transmission gear; 22. Crushing assembly; 221. Crushing plate; 222. First crushing plate; 223. Second crushing plate; 224. First through groove; 225. Second through groove;

[0032] 3. Grinding mechanism; 31. Crushing roller; 32. Second motor; 33. Drive gear;

[0033] 4. Vibration component; 41. Mounting base; 42. Slot; 43. Return spring. Detailed Implementation

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

[0035] The components of the embodiments of the application described and illustrated herein can be arranged and designed in a wide variety of different configurations. Therefore, the following detailed description of the embodiments of the application, as provided in the accompanying drawings, is not intended to limit the scope of the application, but is merely representative of selected embodiments of the application.

[0036] All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the application without creative labor fall within the scope of the protection of the application.

[0037] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0038] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] Please refer to Figures 1-5 The application provides a technical scheme: a grinding device for a zirconia ceramic plunger, comprising: a shell 1, the top and the bottom of which are respectively provided with a feeding hopper 11 and a discharging hopper 12 which are in communication with the shell 1, a pretreatment mechanism 2 and a grinding mechanism 3 are arranged in the shell 1, the pretreatment mechanism 2 is located above the grinding mechanism 3, and is used for pre-processing the blank material fed by the feeding hopper 11, wherein the pretreatment mechanism 2 has: a rotating assembly 21 which is rotatably connected with the inner wall of the shell 1, and a crushing assembly 22 which is arranged at the center position of the rotating assembly 21, the crushing assembly 22 is located above the grinding mechanism 3, and the blank material fed through the feeding hopper 11 falls onto the crushing assembly 22, and the blank material is pretreated and crushed by rotating the rotating assembly 21.

[0040] Specifically, the device is further provided with a control assembly for controlling the feeding amount of the blank in the feeding hopper 11. The control assembly comprises a rotating shaft rotatably connected in the feeding hopper 11, and a turnover plate sleeved on the outer wall of the rotating shaft. When the turnover plate is horizontal, it blocks the feeding hopper 11, thereby isolating the upper and lower spaces to prevent the blank from falling. A third motor is fixedly connected to the outer wall of the feeding hopper 11, and the output end of the third motor is fixedly connected to one end of the rotating shaft. When the output end of the third motor rotates, it controls the rotation of the turnover plate. The blank falling amount is adjusted according to the rotation angle of the turnover plate, thereby controlling the falling and preventing the crushing plate 221 from being stacked with too much blank, which affects the subsequent crushing.

[0041] Further, the rotating assembly 21 comprises a first rotating roller 211 horizontally arranged in the shell 1, and a second rotating roller 212 arranged in parallel on one side of the first rotating roller 211. The first rotating roller 211 and the second rotating roller 212 are both rotatably connected to the inner wall of the shell 1. A first motor 213 is fixedly connected to the outer wall of the shell 1, and the output end of the first motor 213 is fixedly connected to one end of the first rotating roller 211. The other end of the first rotating roller 211 penetrates to the outside of the shell 1 and is fixedly connected with a first transmission wheel 214. A transmission shaft 215 is also fixedly connected to the outer wall of the shell 1, and a second transmission wheel 216 is fixedly connected to the outer wall of the transmission shaft 215. The first transmission wheel 214 and the second transmission wheel 216 are transmissionally connected through a transmission belt 217. The transmission shaft 215 is further fixedly connected with a first transmission gear 218, and the corresponding end of the second rotating roller 212 is fixedly connected with a second transmission gear 219 which is in meshing connection with the second rotating roller 212.

[0042] Further, the crushing assembly 22 comprises a crushing plate 221 arranged between the first rotating roller 211 and the second rotating roller 212. A plurality of first crushing pieces are equidistantly arranged along the length of the outer wall of the first rotating roller 211, and a plurality of second crushing pieces are equidistantly arranged along the length of the outer wall of the second rotating roller 212. Each first crushing piece is composed of a plurality of first crushing plates 222 which are equiangularly distributed on the outer wall of the first rotating roller 211, and each second crushing piece is composed of a plurality of second crushing plates 223 which are equiangularly distributed on the outer wall of the second rotating roller 212. The side wall of the crushing plate 221 towards the first rotating roller 211 is provided with a first through groove 224 corresponding to the plurality of first crushing plates 222, and the side wall of the crushing plate 221 towards the second rotating roller 212 is provided with a second through groove 225 corresponding to the plurality of second crushing plates 223. The first through groove 224 and the second through groove 225 are arranged in a staggered manner.

[0043] Further, a shaking assembly 4 is arranged below the crushing plate 221. The shaking assembly 4 comprises mounting seats 41 fixedly connected to the inner walls of the shell 1 on both sides. A recessed groove 42 is formed in the top wall of each mounting seat 41. A return spring 43 is arranged in the recessed groove 42, and the top end of the return spring 43 is fixedly connected to the bottom wall of the crushing plate 221.

[0044] Specifically, when the reset spring 43 is in a free relaxed state, limit plates are fixedly installed on the two side walls of the shell 1, are located above the crushing plate 221, and have bottom walls abutting against the top wall of the crushing plate 221, so as to limit the rebound of the crushing plate 221 and prevent the crushing plate 221 from being dislocated or skewed when rebounding.

[0045] Further, a material guiding groove is formed in the top wall of the crushing plate 221 and is inclined and sunken from the side edge to the center.

[0046] Further, the grinding mechanism 3 comprises two crushing rollers 31 symmetrically arranged in the shell 1, both ends of the two crushing rollers 31 are rotationally connected to the inner wall of the shell 1, a second motor 32 is further fixedly connected to the outer wall of the shell 1, the output end of the second motor 32 is fixedly connected to the end of one of the two crushing rollers 31, the other end of each of the two crushing rollers 31 penetrates to the outside of the shell 1 and a driving gear 33 is fixedly connected to the outer wall of the shell 1, and the two driving gears 33 are in meshing engagement.

[0047] Specifically, the device can also adjust the distance between the two crushing rollers 31, wherein a horizontal sliding groove is formed in the side wall of the shell 1 corresponding to the two ends of the crushing roller 31, the end of the crushing roller 31 slides in the sliding groove, and two telescopic cylinders are further fixedly connected to the outer wall of the shell 1, the two telescopic cylinders are symmetrically located outside the two sliding grooves, the output end of each of the two telescopic cylinders is movably connected to the end of the corresponding crushing roller 31, when the output ends of the two telescopic cylinders are synchronously extended, the distance between the two crushing rollers 31 is reduced, and when the output ends of the two telescopic cylinders are synchronously retracted, the distance between the two crushing rollers 31 is synchronously increased.

[0048] A process for a grinding device of a zirconia ceramic plunger, comprising the following steps:

[0049] S1, the embryo material to be crushed and ground is put into the shell 1 from the feeding hopper 11;

[0050] S2, the embryo material falls onto the crushing plate 221, the first rotating roller 211 and the second rotating roller 212 on the two sides rotate towards the crushing plate 221, and the first crushing plate 222 and the second crushing plate 223 on the outer wall thereof crush and extrude the embryo material on the crushing plate 221, and the crushed embryo material falls downwards along the first through groove 224 and the second through groove 225 to the grinding mechanism 3;

[0051] S3, the pressing force generated by the first crushing plate 222 and the second crushing plate 223 when pressing the embryo material drives the crushing plate 221 to move downwards, and when the pressing force disappears, the crushing plate 221 is reset and shaken off under the influence of the reset spring 43, so that the embryo material thereon moves to the first through groove 224 and the second through groove 225 along the inclined material guiding groove and is discharged;

[0052] S4, the embryo material block falling from the first through groove 224 and the second through groove 225 falls between the two crushing rollers 31, and the embryo material falling between the two crushing rollers 31 is finely ground by the two crushing rollers 31 rotating towards each other;

[0053] S5, the embryo material after being ground falls into the discharge hopper 12 and is discharged along the discharge hopper 12.

[0054] The working principle and use process of the present application are as follows:

[0055] The embryo material is put into by the feeding hopper 11, falls on the crushing plate 221, then the first motor 213 output end rotates to control the first rotating roller 211 to rotate, and the first rotating roller 211 and the second rotating roller 212 rotate by the first transmission wheel 214, the second transmission wheel 216, the transmission shaft 215, the transmission belt 217, the first transmission gear 218 and the second transmission gear 219, and the first broken plate 222 and the second broken plate 223 on the first rotating roller 211 and the second rotating roller 212 crush the embryo material on the crushing plate 221;

[0056] The crushed embryo material falls along the first through groove 224 and the second through groove 225 between the two crushing rollers 31, then the second motor 32 output end rotates, and the two crushing rollers 31 rotate relative to each other to crush the embryo material by the two drive gears 33, and the crushed embryo material is discharged along the discharge hopper 12.

[0057] The above only describes the preferred embodiment of the present application and does not limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding apparatus for a zirconia ceramic plunger, characterized by: Include: The shell (1) is provided with feed hopper (11), discharge hopper (12) on its top and its bottom respectively; The shell (1) is provided with pretreatment mechanism (2) and grinding mechanism (3), the pretreatment mechanism (2) is located above the grinding mechanism (3), and is used for pre-processing the green material put into the feed hopper (11); Wherein, the pretreatment mechanism (2) has: And the rotating assembly (21) is rotatably connected to the inner wall of the shell (1), and the center position is provided with and the crushing assembly (22), the crushing assembly (22) is located above the grinding mechanism (3), and the green material falling to the crushing assembly (22) is put into the feed hopper (11), and the green material is pretreated and crushed by rotating the rotating assembly (21).

2. A grinding apparatus for a zirconia ceramic plunger as claimed in claim 1, characterized in that: The rotating assembly (21) comprises: The first rotating roller (211) is horizontally arranged in the shell (1), one side of which is provided with the second rotating roller (212), and the first rotating roller (211) and the second rotating roller (212) are rotatably connected to the inner wall of the shell (1); The outer wall of the shell (1) is fixedly connected with the first motor (213), the output end of which is fixedly connected with one end of the first rotating roller (211), and the other end of the first rotating roller (211) penetrates to the outside of the shell (1) and is fixedly connected with the first transmission wheel (214), the outer wall of the shell (1) is also fixedly connected with the transmission shaft (215), the outer wall of which is fixedly connected with the second transmission wheel (216), and the first transmission wheel (214) and the second transmission wheel (216) are drivingly connected through the transmission belt (217); The transmission shaft (215) is also fixedly connected with the first transmission gear (218), and the corresponding end of the second rotating roller (212) is fixedly connected with the second transmission gear (219) engaged therewith.

3. A grinding apparatus for a zirconia ceramic plunger as claimed in claim 2, wherein: The crushing assembly (22) comprises: The crushing plate (221) is arranged between the first rotating roller (211) and the second rotating roller (212), a plurality of first crushing pieces are arranged on the outer wall of the first rotating roller (211) at equal intervals along the length thereof, and a plurality of second crushing pieces are arranged on the outer wall of the second rotating roller (212) at equal intervals along the length thereof; Wherein, each first crushing piece is composed of a plurality of first crushing plates (222) distributed at equal angles around the outer wall of the first rotating roller (211), and each second crushing piece is composed of a plurality of second crushing plates (223) distributed at equal angles around the outer wall of the second rotating roller (212); The side wall of the crushing plate (221) towards the first rotating roller (211) is provided with a first through groove (224) corresponding to a plurality of first crushing plates (222), and the side wall of the crushing plate (221) towards the second rotating roller (212) is provided with a second through groove (225) corresponding to a plurality of second crushing plates (223); The first through groove (224) and the second through groove (225) are arranged in staggered intervals.

4. A grinding apparatus for a zirconia ceramic plunger as claimed in claim 3, characterized in that: The shell (1) is provided with a shaking assembly (4) below the crushing plate (221), which has: Mounting seats (41) are symmetrically fixed to the inner walls of the two sides of the shell (1), a sunken groove (42) is formed in the top wall of each mounting seat (41), a reset spring (43) is arranged in the sunken groove (42), and the top end of the reset spring (43) is fixed to the bottom wall of the crushing plate (221).

5. An apparatus for lapping a zirconia ceramic plunger as defined in claim 3, wherein: A material guiding groove is formed in the top wall of the crushing plate (221), which is inclined and sunken from the side edge to the center.

6. An apparatus for lapping a zirconia ceramic plunger as defined in claim 1, wherein: The grinding mechanism (3) comprises: Two crushing rollers (31) are symmetrically arranged in the shell (1), the two ends of the two crushing rollers (31) are rotatably connected to the inner walls of the shell (1), a second motor (32) is further fixed to the outer wall of the shell (1), and the output end of the second motor (32) is fixed to the end of one of the crushing rollers (31); The other end of each of the two crushing rollers (31) penetrates to the outside of the shell (1) and is fixed to the outer wall of the shell (1) and has a driving gear (33), and the two driving gears (33) are meshed with each other.

7. A process for grinding a zirconia ceramic plunger as claimed in any one of claims 1 to 6, characterized in that: The method comprises the following steps: S1, the embryo material to be crushed and ground is put into the shell (1) from the feeding hopper (11); S2, the embryo material falls onto the crushing plate (221), the first rotating roller (211) and the second rotating roller (212) on the two sides rotate towards the crushing plate (221), and the first crushing plate (222) and the second crushing plate (223) on the outer wall thereof are used to crush the embryo material on the crushing plate (221), and the crushed embryo material falls along the first through groove (224) and the second through groove (225) to the grinding mechanism (3); S3, the crushing force generated by the first crushing plate (222) and the second crushing plate (223) when pressing the embryo material drives the crushing plate (221) to move downward, and when the crushing force disappears, the crushing plate (221) is reset and shaken off under the influence of the reset spring (43), so that the embryo material thereon moves along the inclined material guiding groove to the first through groove (224) and the second through groove (225) and is discharged; S4, the embryo material pieces falling from the first through groove (224) and the second through groove (225) fall between the two crushing rollers (31), and the two crushing rollers (31) rotating towards each other are used to finely grind the embryo material falling between them; S5, the ground embryo material falls into the discharge hopper (12) and is discharged along the discharge hopper (12).

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