Screening device for rough blanks for ceramic machining

Abstract

The invention discloses a coarse blank screening device for ceramic machining, and relates to the technical field of ceramic machining, the coarse blank screening device comprises a screening box body and a screening and crushing mechanism, the screening and crushing mechanism comprises a plurality of supporting rods and clamping blocks, and the supporting rods are uniformly and fixedly installed at the top end of the interior of the screening box body through bolts; the two clamping blocks are movably connected to the two ends of the supporting rods in a sleeving mode respectively. According to the device, rough blanks for ceramic machining placed on the supporting rods are clamped and crushed through the clamping blocks, the crushed blanks fall into the movable screen groove, when the clamping blocks are driven to move reversely, the sliding plate is driven to move, the movable screen groove is driven to incline downwards through the sliding plate, the blanks which do not pass through the movable screen groove are discharged into the grinding box, and the grinding efficiency is improved. The screening efficiency of rough blanks for ceramics is improved, the blanks which are difficult to crush are prevented from staying on the movable screening groove, the screening effect is improved, meanwhile, the blanks which do not pass through the movable screening groove are ground, the subsequent machining time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic processing, in particular to a screening device for coarse blanks used for ceramic processing. Background Art

[0002] In the delicate and complex process of ceramic processing, the screening of coarse blanks plays a vital role. It is not only a key step to ensure that the quality of the final product meets high standards and meets customer needs, but also an important link to improve subsequent processing efficiency and reduce production costs. By accurately and effectively screening the coarse blanks, impurities can be removed and particles of different sizes can be separated, providing a uniform and delicate raw material basis for subsequent molding, firing and other processes. The Chinese patent application with application number 202420420590.2 discloses "a screening device for ceramic material processing, including a support and a screening member, the screening member includes a screening cylinder, a screw cover and The filter cartridge has openings at both the upper and lower ends of the screening cartridge, and a screw cover is assembled on the top thread of the screening cartridge, a filter cartridge is fixed on the bottom surface of the screw cover, and multiple screens are fixed horizontally in the vertical direction inside the filter cartridge, the middle of the screw cover is vertically rotatably connected to a rotating shaft, and pressure rollers are arranged on the rotating shaft above the multiple screens in the vertical direction, and the pressure rollers are rotatably connected to the rotating shaft, and a first motor is fixed in the middle of the top surface of the screw cover. To overcome the problem of lack of rolling structure on the existing coarse and fine screens, large particles of clay will remain on the coarse and fine screens and cannot fall, and a lot of material will accumulate for a long time, blocking the mesh holes of the coarse and fine screens, affecting the filtration efficiency of the coarse and fine screens." This technical solution only solves the problem that large particles of clay will remain on the coarse screen and the fine screen and cannot fall down, and a large amount of material will accumulate for a long time, blocking the mesh holes of the coarse screen and the fine screen, affecting the filtering efficiency of the coarse screen and the fine screen. However, rolling on the screen can easily cause the screen to be damaged, and when screening the coarse blanks, the blanks that are difficult to break are easy to remain on the screen. When the screening work is carried out for a long time, the existing equipment often cannot handle the coarse blanks retained on the screen well, resulting in the screening effect being affected, resulting in the production efficiency being affected. Summary of the invention

[0003] The object of the present invention is to provide a screening device for coarse blanks for ceramic processing to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a screening device for coarse blanks for ceramic processing, comprising a screening box, a screening and crushing mechanism, a grading and discharging mechanism, a grinding mechanism and a reciprocating mechanism: The screening and crushing mechanism comprises a supporting rod and a clamping block. There are a plurality of supporting rods and they are evenly fixed on the inner top of the screening box by bolts. There are two clamping blocks and they are movably sleeved on both ends of the plurality of supporting rods. The grading discharging mechanism comprises a connecting shaft and a movable screen slot, wherein the connecting shaft is fixedly mounted at the upper middle of the inner part of the screening box by bolts, and the movable screen slots have two ends, and one end close to the middle of the inner part of the screening box is movably sleeved on the connecting shaft; A grinding mechanism, the grinding mechanism comprising a grinding box, two of which are respectively fixed on the left and right sides of the screening box body by bolts; The reciprocating mechanism comprises a reciprocating gear, and the reciprocating gear is movably installed in the middle of the front side of the screening box through a bearing.

[0005] Preferably, the screening and crushing mechanism includes a baffle, a sliding frame and a sliding sleeve. The baffle is fixedly installed on the top of the clamping block by bolts. There are two groups of sliding frames, two in each group, and they are respectively fixedly installed on the front and rear top ends of the two clamping blocks by bolts. The two groups of sliding frames are connected to the front and rear sides of the screening box by sliding activities. The sliding sleeve is fixedly installed on the bottom end of the sliding frame located on the outer side wall of the screening box by bolts.

[0006] Preferably, the screening and crushing mechanism includes a mounting seat, a slide rail and a first discharging plate. There are two groups of mounting seats, each with three seats, which are fixedly installed in the middle of the front and rear side walls of the screening box by bolts. There are two slide rails, which are fixedly installed in two groups of mounting seats by bolts. Each group of mounting seats is located at both ends and the middle of each slide rail. The first discharging plate is fixedly installed at the inner bottom end of the screening box by bolts. A discharging port is provided at the front bottom end of the screening box, and the front bottom end of the first discharging plate is fixedly installed in the discharging port by insertion.

[0007] Preferably, the grading and discharging mechanism includes a guard plate, a slide plate and a return spring. The guard plate is fixedly installed in the middle of the interior of the screening box by bolts and is located above the connecting shaft. There are two slide plates, which are movably connected to the two ends of several support rods and are located between the inner wall of the screening box and the clamping block. There are several return springs, which are movably connected to the two ends of several support rods and are located between the inner wall of the screening box and the slide plate.

[0008] Preferably, the grading discharge mechanism includes a connecting rod, a second discharge plate and a discharge trough, there are two groups of connecting rods with two rods in each group, and the top ends are movably mounted on the front and rear bottom ends of the two slides through rotating shafts, the bottom ends of the two groups of connecting rods are movably mounted on the front and rear sides of the two movable screening slots away from one end of the connecting shaft through rotating shafts, there are two second discharge plates and they are fixedly mounted on the left and right ends of the screening box by bolts, the left and right side walls of the screening box are provided with discharge ports, there are two discharge troughs and they are fixedly mounted on the left and right side walls of the screening box by bolts and are located outside the discharge port, and the end of the second discharge plate away from the connecting shaft passes through the discharge port and is movably mounted in the discharge trough.

[0009] Preferably, the grinding mechanism includes a grinding bucket, a sieve plate and a rotating cylinder. The grinding bucket is fixedly installed inside the grinding box by bolts, the sieve plate is fixedly installed at the inner bottom end of the grinding bucket by bolts, and the rotating cylinder is movably installed in the middle of the top of the grinding box through a bearing.

[0010] Preferably, the grinding mechanism includes a connecting frame, a rotating shaft and a grinding head, the connecting frame is fixedly installed in the middle of the top of the rotating cylinder by bolts, the top of the rotating shaft is fixedly installed in the middle of the connecting frame by bolts, the top of the grinding head is fixedly installed at the bottom of the rotating shaft by bolts, and the grinding head is a conical structure with a larger bottom and a smaller top.

[0011] Preferably, the reciprocating mechanism includes an upper tooth plate, a lower tooth plate, a reciprocating rod and a reciprocating frame, the upper tooth plate is fixedly mounted on the bottom end of a sliding sleeve located at the right end of the front side of the screening box by bolts, the lower tooth plate is fixedly mounted on the bottom end of a sliding sleeve located at the left end of the front side of the screening box by bolts, the reciprocating gear is located between the upper tooth plate and the lower tooth plate and is movably connected to the upper tooth plate and the lower tooth plate by meshing, the upper tooth plate is movably connected to the front side of the screening box, the lower tooth plate is movably connected to the front side of the upper tooth plate, the reciprocating rod is fixedly mounted on the top end of the rotating drum by bolts, and the end of the reciprocating frame away from the grinding box is fixedly mounted on the top ends of two sliding sleeves located on the front and rear sides of the screening box by bolts.

[0012] Preferably, the reciprocating mechanism includes a reciprocating groove, a gear ring, a driving gear and a motor, the reciprocating groove is opened in the middle of the end of the reciprocating frame away from the screening box body, the reciprocating rod is movably installed in the reciprocating groove, the gear ring is fixedly sleeved on the outside of a reciprocating rod by bolts, and is movably connected to the top of the grinding box, the driving gear is movably installed on the end of the gear ring away from the screening box body through meshing, the motor is fixedly installed on the side of the grinding box away from the screening box body by bolts, and the driving gear is fixedly installed on the top of the motor output shaft by bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention crushes the coarse blanks for ceramic processing placed on the support rod by means of a clamping block, so that the crushed blanks fall into the movable screen slot; when the clamping block is driven to move in the reverse direction, the slide plate is driven to move, and the movable screen slot is driven to tilt downward by the slide plate, so that the blanks that fail to pass through the movable screen slot are discharged into the grinding box, and the coarse blanks are finely ground by the grinding head; the reciprocating frame is driven to reciprocate by driving the rotating drum to rotate, so that the crushing, discharging and blank grinding can be carried out simultaneously, thereby improving the screening efficiency of the coarse blanks for ceramics, avoiding the difficult-to-crush blanks from being stranded on the movable screen slot, improving the screening effect, and grinding the blanks that fail to pass through the movable screen slot, saving the time for subsequent processing, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Provides an overall structural diagram for an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a screening box provided in an embodiment of the present invention; Figure 3 A partial schematic diagram of a graded discharging mechanism provided in an embodiment of the present invention; Figure 4 A schematic diagram of a cross-sectional structure of a screening box provided in an embodiment of the present invention; Figure 5 A schematic diagram of a grinding mechanism and a reciprocating mechanism provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of a grinding box provided in an embodiment of the present invention.

[0015] In the figure: 1, screening box; 2, screening and crushing mechanism; 201, support rod; 202, clamping block; 203, baffle; 204, sliding frame; 205, sliding sleeve; 206, mounting seat; 207, slide rail; 208, first discharging plate; 3, graded discharging mechanism; 301, connecting shaft; 302, movable screen slot; 303, guard plate; 304, slide plate; 305, reset spring; 306, connecting rod; 307, second discharging plate; 308, discharge chute; 4, grinding mechanism; 401, grinding box; 402, grinding bucket; 403, sieve plate; 404, rotating cylinder; 405, connecting frame; 406, rotating shaft; 407, grinding head; 5, reciprocating mechanism; 501, upper tooth plate; 502, lower tooth plate; 503, reciprocating gear; 504, reciprocating rod; 505, reciprocating frame; 506, reciprocating trough; 507, gear ring; 508, driving gear; 509, motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0017] See also Figures 1 to 6 The present invention provides a technical solution: a screening device for coarse blanks for ceramic processing, comprising a screening box 1, a screening and crushing mechanism 2, a grading and discharging mechanism 3, a grinding mechanism 4 and a reciprocating mechanism 5: The screening and crushing mechanism 2 includes a supporting rod 201 and a clamping block 202. There are a plurality of supporting rods 201 and they are evenly fixed on the inner top of the screening box 1 by bolts. There are two clamping blocks 202 and they are movably sleeved on both ends of the plurality of supporting rods 201. The grading discharging mechanism 3 includes a connecting shaft 301 and a movable screen slot 302. The connecting shaft 301 is fixedly installed at the upper middle of the screening box 1 by bolts. There are two movable screen slots 302, and one end close to the middle of the screening box 1 is movably sleeved on the connecting shaft 301. The grinding mechanism 4 includes a grinding box 401, and two grinding boxes 401 are respectively fixed on the left and right sides of the screening box 1 by bolts; The reciprocating mechanism 5 comprises a reciprocating gear 503 , and the reciprocating gear 503 is movably mounted in the middle of the front side of the screening box 1 through a bearing.

[0018] The screening and crushing mechanism 2 includes a baffle 203, a slide frame 204 and a sleeve 205. The baffle 203 is fixedly installed on the top of the clamping block 202 by bolts. There are two groups of slide frames 204, each group of two, and they are respectively fixedly installed on the front and rear tops of the two clamping blocks 202 by bolts. The two groups of slide frames 204 are connected to the front and rear sides of the screening box 1 by sliding activities. The sleeve 205 is fixedly installed on the bottom of the slide frame 204 located on the outer wall of the screening box 1 by bolts; the baffle 203 is used to prevent the rough blank from bouncing into between the clamping block 202 and the inner wall of the screening box 1 when the rough blank is crushed; The screening and crushing mechanism 2 includes a mounting seat 206, a slide rail 207 and a first discharge plate 208. There are two groups of mounting seats 206, each with three members, which are respectively fixedly installed in the middle of the front and rear side walls of the screening box 1 by bolts. There are two slide rails 207, which are respectively fixedly installed in the two groups of mounting seats 206 by bolts. Each group of mounting seats 206 is respectively located at the two ends and the middle of each slide rail 207. The first discharge plate 208 is fixedly installed at the inner bottom end of the screening box 1 by bolts. A discharge port is provided at the front bottom end of the screening box 1. The front bottom end of the first discharge plate 208 is fixedly installed in the discharge port by insertion. Primary screening is performed by the support rod 201, so that small-volume blanks fall down, and then secondary screening is performed by the movable screening slot 302. The blanks after passing through the movable screening slot 302 fall onto the first discharge plate 208, so that the screened blanks are discharged from the first discharge plate 208. The grading discharging mechanism 3 includes a guard plate 303, a slide plate 304 and a return spring 305. The guard plate 303 is fixedly installed in the middle of the inner part of the screening box 1 by bolts and is located above the connecting shaft 301. There are two slide plates 304, which are respectively movably sleeved at the two ends of a plurality of support rods 201 and are located between the inner wall of the screening box 1 and the clamping block 202. There are a plurality of return springs 305, which are respectively movably sleeved at the two ends of a plurality of support rods 201 and are located between the inner wall of the screening box 1 and the slide plate 304. After the clamping block 202 contacts the slide plate 304, the slide plate 304 is driven to move at the same time, so that the return spring 305 is compressed. When the slide plate 304 moves, the movable screen slot 302 is driven to rotate around the connecting shaft 301 through the connecting rod 306, so that the end of the movable screen slot 302 away from the guard plate 303 rotates downward; The grading discharge mechanism 3 includes a connecting rod 306, a second discharge plate 307 and a discharge trough 308. There are two groups of connecting rods 306, each with two rods, and the top ends are movably mounted on the front and rear bottom ends of the two slides 304 through a rotating shaft. The bottom ends of the two groups of connecting rods 306 are movably mounted on the front and rear sides of the two movable sieve slots 302 away from one end of the connecting shaft 301 through a rotating shaft. There are two second discharge plates 307, which are respectively fixedly mounted on the left and right ends of the screening box 1 by bolts. The left and right side walls of the screening box 1 are both provided with discharge ports. There are two discharge troughs 308, which are respectively fixedly mounted on the left and right side walls of the screening box 1 by bolts, and are located at the discharge port. In addition, the end of the second discharging plate 307 away from the connecting shaft 301 passes through the discharging port and is movably installed in the discharging trough 308; the movable screen slot 302 is tilted so that the blanks retained in the movable screen slot 302 enter the discharging trough 308 through the second discharging plate 307, and when the clamping block 202 moves toward the middle of the screening box 1, the elastic force of the reset spring 305 drives the slide plate 304 to reset, so that the movable screen slot 302 is reset, and the clamping block 202 continuously moves back and forth, so that the coarse blanks are crushed in the support rod 201, and the movable screen slot 302 is reciprocated by shaking back and forth, thereby improving the screening efficiency, and the blanks retained on the movable screen slot 302 are discharged; The grinding mechanism 4 includes a grinding bucket 402, a sieve plate 403 and a rotating cylinder 404. The grinding bucket 402 is fixedly installed inside the grinding box 401 by bolts, the sieve plate 403 is fixedly installed at the bottom of the grinding bucket 402 by bolts, and the rotating cylinder 404 is movably installed in the middle of the top of the grinding box 401 through a bearing; the blanks are gathered on the sieve plate 403 through the grinding bucket 402; The grinding mechanism 4 includes a connecting frame 405, a rotating shaft 406 and a grinding head 407. The connecting frame 405 is fixedly installed in the middle of the top of the rotating cylinder 404 by bolts, the top of the rotating shaft 406 is fixedly installed in the middle of the connecting frame 405 by bolts, and the top of the grinding head 407 is fixedly installed at the bottom of the rotating shaft 406 by bolts. The grinding head 407 is a conical structure with a large bottom and a small top. The rotating shaft 406 is driven to rotate by the connecting frame 405, so that the grinding head 407 rotates with the rotating shaft 406, and the blank on the screen plate 403 is ground by the grinding head 407, and the ground blank passes through the screen plate 403 and is discharged; The reciprocating mechanism 5 includes an upper tooth plate 501, a lower tooth plate 502, a reciprocating rod 504 and a reciprocating frame 505. The upper tooth plate 501 is fixedly mounted on the bottom end of a sliding sleeve 205 located at the right end of the front side of the screening box 1 by bolts, and the lower tooth plate 502 is fixedly mounted on the bottom end of a sliding sleeve 205 located at the left end of the front side of the screening box 1 by bolts. The reciprocating gear 503 is located between the upper tooth plate 501 and the lower tooth plate 502 and is movably connected to the upper tooth plate 501 and the lower tooth plate 502 by meshing. The upper tooth plate 501 is movably connected to the front side of the screening box 1, and the lower tooth plate 502 is fixedly mounted on the bottom end of a sliding sleeve 205 located at the left end of the front side of the screening box 1 by bolts. The reciprocating rod 504 is movably connected to the front side of the upper tooth plate 501 and fixedly installed on the top of the rotating cylinder 404 by bolts. The end of the reciprocating frame 505 away from the grinding box 401 is fixedly installed on the top of the two sliding sleeves 205 located on the front and rear sides of the screening box 1 by bolts respectively; the reciprocating frame 505 is driven to reciprocate by the reciprocating rod 504. When the reciprocating frame 505 moves toward the screening box 1, the two sliding sleeves 205 connected thereto are driven to move simultaneously by the reciprocating frame 505, so that the sliding frame 204 moves simultaneously with the sliding sleeves 205; The reciprocating mechanism 5 includes a reciprocating groove 506, a gear ring 507, a driving gear 508 and a motor 509. The reciprocating groove 506 is arranged in the middle of the end of the reciprocating frame 505 away from the screening box body 1. The reciprocating rod 504 is movably installed in the reciprocating groove 506. The gear ring 507 is fixedly sleeved on the outside of a reciprocating rod 504 by bolts and is movably connected to the top of the grinding box 401. The driving gear 508 is movably installed on the end of the gear ring 507 away from the screening box body 1 through meshing. The motor 509 is fixedly installed on the side of the grinding box 401 away from the screening box body 1 by bolts, and the driving gear 508 is fixedly installed on the top of the output shaft of the motor 509 by bolts; the driving gear 508 is driven to rotate by the motor 509, and the gear ring 507 is driven to rotate by the driving gear 508, so that the rotating cylinder 404 rotates with the gear ring 507.

[0019] Working principle: When the present invention is in use, the rough blank for ceramic processing is placed on the support rod 201 inside the screening box 1, and the rough blank is placed between the two clamping blocks 202, and the motor 509 is started, and the driving gear 508 is driven to rotate by the motor 509, and the gear ring 507 is driven to rotate by the driving gear 508, so that the rotating cylinder 404 rotates following the gear ring 507, and when the rotating cylinder 404 rotates, the reciprocating frame 505 is driven to reciprocate by the reciprocating rod 504, and when the reciprocating frame 505 moves toward the screening box 1, the two sliding sleeves 205 connected thereto are driven to move simultaneously by the reciprocating frame 505, so that the sliding frame 204 moves simultaneously with the sliding sleeves 205, and then the clamping block 202 is driven to move toward the middle of the screening box 1 by the sliding frame 204. At this time, the upper tooth plate 501 moves with the sliding sleeve 205, and the reciprocating gear 503 is driven to rotate by the upper tooth plate 501, so that the lower tooth plate 502 drives the sliding sleeve 205 connected thereto to move at the same time, and at this time drives the two clamping blocks 202 to move toward the coarse blank placed on the support rod 201 at the same time, so that the large pieces of coarse blank are crushed, and the small-volume blanks fall from the support rod 201 and fall into the movable screen slot 302. In this process, the support rod 201 is used for primary screening, so that the small-volume blanks fall, and then the movable screen slot 302 is used for secondary screening. The blanks that pass through the movable screen slot 302 fall onto the first discharging plate 208, so that the screened blanks are discharged from the first discharging plate 208, and the blanks that do not pass through the movable screen slot 302 are retained in the movable screen slot 302; When the reciprocating frame 505 moves in the direction away from the screening box 1, it drives the clamping block 202 to move away from the middle of the screening box 1. When the clamping block 202 contacts the slide plate 304, it drives the slide plate 304 to move at the same time, so that the return spring 305 is compressed. When the slide plate 304 moves, the movable screen slot 302 is driven to rotate around the connecting shaft 301 through the connecting rod 306, so that the end of the movable screen slot 302 away from the guard plate 303 rotates downward. At this time, the movable screen slot 302 is tilted, so that the movable screen slot 302 trapped in the movable screen slot 302 is The blanks in the movable screen slot 302 enter the discharge slot 308 through the second discharge plate 307. When the clamp block 202 moves toward the middle of the screening box 1, the slide plate 304 is reset by the elastic force of the reset spring 305, so that the movable screen slot 302 is reset. The clamp block 202 continuously moves back and forth, so that the coarse blanks are crushed in the support rod 201, and the movable screen slot 302 shakes back and forth, thereby improving the screening efficiency, and the blanks retained in the movable screen slot 302 are discharged; The blanks in the discharge trough 308 enter the grinding box 401, and are gathered on the sieve plate 403 through the grinding bucket 402. When the rotating cylinder 404 rotates, the connecting frame 405 is driven to rotate, and the connecting frame 405 drives the rotating shaft 406 to rotate, so that the grinding head 407 rotates with the rotating shaft 406, and the grinding head 407 grinds the blanks on the sieve plate 403, and the ground blanks are discharged after passing through the sieve plate 403.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for raw materials for ceramic processing, comprising a screening box (1), characterized in that: It also includes a screening and crushing mechanism (2), a grading and discharging mechanism (3), a grinding mechanism (4) and a reciprocating mechanism (5): A screening and crushing mechanism (2), the screening and crushing mechanism (2) comprising a supporting rod (201) and a clamping block (202), wherein the supporting rods (201) are in total a plurality and are evenly fixedly mounted on the inner top of the screening box (1), and the clamping blocks (202) are in total two and are movably mounted on both ends of the plurality of supporting rods (201); A grading and discharging mechanism (3), the grading and discharging mechanism (3) comprising a connecting shaft (301) and a movable screen slot (302), the connecting shaft (301) being fixedly mounted at an upper middle portion of the interior of the screening box (1), and the movable screen slots (302) having two ends thereof, both of which are movably mounted on the connecting shaft (301) and close to the middle portion of the interior of the screening box (1); A grinding mechanism (4), the grinding mechanism (4) comprising a grinding box (401), wherein the grinding boxes (401) have two parts fixedly mounted on the left and right sides of the screening box body (1); A reciprocating mechanism (5), the reciprocating mechanism (5) comprising a reciprocating gear (503), the reciprocating gear (503) being movably mounted in the middle of the front side of the screening box (1).

2. A screening device for rough blanks for ceramic processing according to claim 1, characterized in that: The screening and crushing mechanism (2) comprises a baffle (203), a sliding frame (204) and a sliding sleeve (205); the baffle (203) is fixedly mounted on the top of the clamping block (202) by means of bolts; the sliding frames (204) are in total two groups, each group having two, and are respectively fixedly mounted on the top of the front and rear sides of the two clamping blocks (202) by means of bolts; the two groups of sliding frames (204) are connected to the front and rear sides of the screening box (1) by means of sliding activities; the sliding sleeve (205) is fixedly mounted on the bottom of the sliding frame (204) located on the outer side wall of the screening box (1) by means of bolts.

3. A screening device for rough blanks for ceramic processing according to claim 2, characterized in that: The screening and crushing mechanism (2) comprises a mounting seat (206), a slide rail (207) and a first discharge plate (208); the mounting seat (206) comprises two groups, each group comprising three members, and the members are respectively fixedly mounted in the middle of the front and rear side walls of the screening box (1) by means of bolts; the slide rails (207) comprise two members, and the members are respectively fixedly mounted in the two groups of mounting seats (206) by means of bolts; each group of mounting seats (206) is respectively located at the two ends and the middle of each slide rail (207); the first discharge plate (208) is fixedly mounted in the inner bottom end of the screening box (1) by means of bolts; a discharge port is provided at the front bottom end of the screening box (1); the front bottom end of the first discharge plate (208) is fixedly mounted in the discharge port by means of insertion.

4. A screening device for rough blanks for ceramic processing according to claim 3, characterized in that: The grading and discharging mechanism (3) comprises a guard plate (303), a slide plate (304) and a return spring (305); the guard plate (303) is fixedly mounted in the middle of the screening box (1) by means of bolts and is located above the connecting shaft (301); there are two slide plates (304) which are respectively movably sleeved at the two ends of a plurality of support rods (201) and are located between the inner wall of the screening box (1) and the clamping block (202); there are several return springs (305) which are respectively movably sleeved at the two ends of a plurality of support rods (201) and are located between the inner wall of the screening box (1) and the slide plates (304).

5. A screening device for rough blanks for ceramic processing according to claim 4, characterized in that: The grading discharge mechanism (3) comprises a connecting rod (306), a second discharge plate (307) and a discharge trough (308). The connecting rods (306) are provided in two groups, each group having two rods, and the top ends are movably mounted on the front and rear bottom ends of the two slide plates (304) through a rotating shaft. The bottom ends of the two groups of connecting rods (306) are movably mounted on the front and rear sides of the ends of the two movable screening slots (302) away from the connecting shaft (301) through a rotating shaft. There are two second discharge plates (307) and they are fixedly mounted on the left and right ends of the screening box (1) through bolts. The left and right side walls of the screening box (1) are provided with discharge openings. There are two discharge troughs (308) and they are fixedly mounted on the left and right side walls of the screening box (1) through bolts and are located outside the discharge opening. The end of the second discharge plate (307) away from the connecting shaft (301) passes through the discharge opening and is movably mounted in the discharge trough (308).

6. A device for screening coarse blanks for ceramic processing according to claim 5, characterized in that: The grinding mechanism (4) comprises a grinding bucket (402), a sieve plate (403) and a rotating cylinder (404); the grinding bucket (402) is fixedly mounted inside a grinding box (401) by means of bolts; the sieve plate (403) is fixedly mounted at the bottom end of the grinding bucket (402) by means of bolts; and the rotating cylinder (404) is movably mounted in the middle of the top end of the grinding box (401) by means of a bearing.

7. A screening device for rough blanks for ceramic processing according to claim 6, characterized in that: The grinding mechanism (4) comprises a connecting frame (405), a rotating shaft (406) and a grinding head (407); the connecting frame (405) is fixedly mounted in the middle of the top end of the rotating cylinder (404) by means of bolts; the top end of the rotating shaft (406) is fixedly mounted in the middle of the connecting frame (405) by means of bolts; the top end of the grinding head (407) is fixedly mounted in the bottom end of the rotating shaft (406) by means of bolts; the grinding head (407) is in the shape of a cone with a larger bottom and a smaller top.

8. A screening device for rough blanks for ceramic processing according to claim 7, characterized in that: The reciprocating mechanism (5) comprises an upper tooth plate (501), a lower tooth plate (502), a reciprocating rod (504) and a reciprocating frame (505); the upper tooth plate (501) is fixedly mounted on the bottom end of a sliding sleeve (205) located at the right end of the front side of the screening box (1) by means of bolts; the lower tooth plate (502) is fixedly mounted on the bottom end of a sliding sleeve (205) located at the left end of the front side of the screening box (1) by means of bolts; the reciprocating gear (503) is located between the upper tooth plate (501) and the lower tooth plate (502) and is in contact with the reciprocating gear (503). The upper tooth plate (501) and the lower tooth plate (502) are movably connected by meshing, the upper tooth plate (501) is movably connected to the front side of the screening box (1), the lower tooth plate (502) is movably connected to the front side of the upper tooth plate (501), the reciprocating rod (504) is fixedly mounted on the top of the rotating cylinder (404) by bolts, and the end of the reciprocating frame (505) away from the grinding box (401) is fixedly mounted on the top of two sliding sleeves (205) located on the front and rear sides of the screening box (1) by bolts.

9. A device for screening coarse blanks for ceramic processing according to claim 8, characterized in that: The reciprocating mechanism (5) comprises a reciprocating groove (506), a gear ring (507), a driving gear (508) and a motor (509); the reciprocating groove (506) is arranged in the middle of one end of the reciprocating frame (505) away from the screening box (1); the reciprocating rod (504) is movably mounted in the reciprocating groove (506); the gear ring (507) is sleeved on the outside of a reciprocating rod (504) by bolts and is movably connected to the top of the grinding box (401); the driving gear (508) is movably mounted on one end of the gear ring (507) away from the screening box (1) by meshing; the motor (509) is fixedly mounted on one side of the grinding box (401) away from the screening box (1) by bolts; and the driving gear (508) is fixedly mounted on the top of the output shaft of the motor (509) by bolts.

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