Graded crushing sand making machine

Abstract

The graded crushing sand making machine comprises a working stable frame, a sand making control frame is fixedly connected to the inner wall of the upper end of the working stable frame, a dust removal mechanism is fixedly connected to one side of the working stable frame, and a feeding hopper is fixedly connected to the upper end of the sand making control frame; and the inner side of the upper feeding hopper is movably connected with a primary crusher. According to the graded crushing sand making machine, through the arranged dust removal mechanism, dust and waste gas generated in the production process can be effectively captured and removed, pollution to the working environment is reduced, the working condition and the health level of workers are improved, meanwhile, dust can be prevented from being accumulated on the surface of equipment, and the production efficiency is improved. By arranging the discharging conveying mechanism, equipment failure and shutdown time caused by dust are avoided, so that the production efficiency is improved, continuous and uniform conveying of materials can be achieved, the phenomena of blockage and material breakage are avoided, and the production efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand making machines, in particular to a graded crushing sand making machine. Background Art

[0002] Sand making machine is a high-energy and low-consumption impact crusher with international advanced level. Its performance plays an irreplaceable role in various ore fine crushing equipment. It is currently the most effective and reliable stone crushing machine. It is widely used in metal and non-metallic ores, cement, refractory materials, abrasives, glass raw materials, building aggregates, artificial sand, river pebbles, rocks, ore tailings, artificial sand making of stone chips, building aggregates, highway surface materials, cushion materials, asphalt concrete and cement concrete aggregate production, and various metallurgical slag fine crushing and coarse grinding operations, especially for medium-hard, extra-hard and abrasive materials such as silicon carbide, corundum, sintered bauxite, magnesia, etc. It is more superior than other types of crushers. It can be used in conjunction with hydraulic protection jaw crusher to process various metallurgical slags. It is particularly suitable for construction sand and road sand and gravel.

[0003] Common sand making machines are usually not equipped with dust removal devices when in use. The sand making process will produce a large amount of fine particles. These dusts will be directly discharged into the air, causing serious air pollution. At the same time, the material transportation efficiency is low, affecting the overall production efficiency and bringing certain adverse effects to people's use process. For this reason, we propose a graded crushing sand making machine. Summary of the invention

[0004] Technical problems to be solved: In view of the shortcomings of the prior art, the present invention provides a graded crushing sand making machine, which has the advantages of dust removal, material feeding and transmission, etc. Through the dust removal mechanism, the bracket plate and the inclined stabilizing plate are supported at the lower end of the dust collection box to enhance stability, and the suction pump can provide suction on the outer wall of the dust collection box, and the dust and fine particles during the crushing and sand making on the inner side of the sand making control frame can be sucked into the dust collection net inside the dust collection box through the suction connecting pipe and the stone-proof filter net. Subsequently, the control slot is pulled to open the sealing movable cover, and the dust collection net can be taken out for cleaning, which can effectively capture and remove the dust and exhaust gas generated in the production process, reduce the pollution to the working environment, and improve the working conditions of the workers. Parts and health level, at the same time, it can prevent dust from accumulating on the surface of the equipment, avoid equipment failure and downtime caused by dust, thereby improving production efficiency, the sealing protective pad can enhance the sealing performance on the outer wall of the sealing movable cover, and through the set feeding transmission mechanism, the feeding transmission frame passes through the inner side of the positioning N-type frame, and is positioned with the feeding hopper through the positioning connecting plate, the crushed material on the inside of the feeding hopper can fall into the inner side of the feeding transmission frame, and then the transmission discharge blade is driven to rotate by controlling the motor to drive the inner rotating control rod, so that the material can be continuously transported to the feeding connection block for discharge, which can realize continuous and uniform transportation of materials, avoid blockage and material breakage, further improve production efficiency, and effectively solve the problems in the background technology.

[0005] Technical solution: To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a graded crushing sand making machine, comprising a working stabilizing frame, the inner wall of the upper end of the working stabilizing frame is fixedly connected with a sand making control frame, one side of the working stabilizing frame is fixedly connected with a dust removing mechanism, the upper end of the sand making control frame is fixedly connected with an upper feed hopper, the inner side of the upper feed hopper is movably connected with a primary crusher, the lower end of the sand making control frame is positioned and installed with a unloading transmission mechanism, one side of the sand making control frame is fixedly connected with an intermediate crusher and an ultrafine crusher, the ultrafine crusher is located at the lower end of the intermediate crusher, and the dust removing mechanism comprises a suction connecting pipe, a stone-proof filter net, a bracket plate, an inclined stabilizing plate, a dust collecting box, a sealed movable cover, a control groove, a sealing protective pad, a suction pump, a through connecting hole, a positioning strap, a connecting strap and a dust collecting net.

[0006] Preferably, the suction connecting pipe is located on the inner wall of the sand making control frame, the stone prevention filter is located on the inner wall of the suction connecting pipe, the bracket plate is located on one side of the working stable frame, the inclined stable plate is located at the lower end of the bracket plate, the dust collection box is located at the upper end of the bracket plate, the sealing movable cover is located at the upper end of the dust collection box, and the control groove is opened at the upper end of the sealing movable cover.

[0007] Preferably, the sealing protection gasket is located on the outer wall of the sealing movable cover, the suction pump is located on one side of the dust collection box, the through connecting hole is opened at the upper end of one side of the dust collection box, the positioning strap is located on the inner wall of the dust collection box, and the dust collection net is located at the lower end of the connecting strap and inside the dust collection box.

[0008] Preferably, the outer wall of the suction connecting pipe passes through the inner wall of the sand making control frame and is fixed, the stone-proof filter is embedded in the inner wall of the suction connecting pipe and is fixed, one side of the bracket plate is fixedly connected to one side of the working stabilizing frame, both ends of the inclined stabilizing plate are fixedly connected to the lower end of the bracket plate, and the lower end of the dust collection box is fixedly connected to the upper end of the bracket plate.

[0009] Preferably, the sealing movable cover is opened and closed by a hinge on the inner side of the upper end of the dust collection box, one side of the sealing protection pad is fitted and positioned with an outer wall of the sealing movable cover by strong glue, one side of the suction pump is fixedly connected to one side of the dust collection box, the outer wall of the positioning strap is fixedly connected to the inner wall of the dust collection box, the connecting strap is integrally formed with the dust collection net, and the lower end of the connecting strap is fixed to the upper end of the positioning strap by bolts.

[0010] Preferably, the material discharge transmission mechanism includes a material discharge hopper, a positioning connecting plate, a support frame, a positioning N-type frame, a material discharge transmission frame, a material discharge connecting block, an internal discharge trough, a control motor, an internal rotating control rod and a transmission discharge blade. The material discharge hopper is located at the lower end of the sand making control frame, and the positioning connecting plate is located on the outer wall of the material discharge hopper.

[0011] Preferably, the support frame is located on the inner side of the working stabilizing frame, the positioning N-shaped frame is located at the upper end of the support frame, the unloading transmission frame is located on the inner side of the positioning N-shaped frame, the unloading connecting block is located on one side of the lower end of the unloading transmission frame, the inner discharge trough is opened on one side of the upper end of the unloading transmission frame, the control motor is located at one end of the unloading transmission frame, the inner rotating control rod and the transmission discharge blades are both located inside the unloading transmission frame, and the transmission discharge blades are located on the outer wall of the inner rotating control rod.

[0012] Preferably, the upper end of the lower hopper is fixedly connected to the lower end of the sand making control frame, the inner wall of the positioning connecting plate is fixedly connected to the outer wall of the lower hopper, both ends of the support frame are fixedly connected to the inner side of the working stability frame, the lower end of the positioning N-type frame is fixedly connected to the upper end of the support frame, and the lower material transmission frame passes through the inner side of the positioning N-type frame and is positioned between the positioning connecting plate and the lower hopper.

[0013] Preferably, one end of the unloading connecting block is embedded in the inner wall of the lower end of the unloading transmission frame and is fixed, one end of the control motor is fixed to one end of the unloading transmission frame by bolts, one end of the inner rotating control rod passes through the inner side of the unloading transmission frame and is connected to the control motor, and the inner wall of the transmission discharge blade is fixedly connected to the outer wall of the inner rotating control rod.

[0014] Beneficial effects: Compared with the prior art, the present invention provides a graded crushing sand making machine, which has the following beneficial effects: 1. This kind of graded crushing sand making machine, through the dust removal mechanism set up, the bracket plate and the inclined stabilizing plate are supported at the lower end of the dust collection box to enhance stability, the suction pump can provide suction on the outer wall of the dust collection box, and the dust and fine particles generated during the crushing and sand making on the inner side of the sand making control frame can be sucked into the dust collection net inside the dust collection box through the suction connecting pipe and the stone-proof filter net. Subsequently, the control groove is pulled to open the sealing movable cover, and the dust collection net can be taken out for cleaning. It can effectively capture and remove the dust and exhaust gas generated in the production process, reduce pollution to the working environment, and improve the working conditions and health level of workers. At the same time, it can prevent dust from accumulating on the surface of the equipment, avoid equipment failure and downtime caused by dust, thereby improving production efficiency. The sealing protective pad can enhance the sealing on the outer wall of the sealing movable cover.

[0015] 2. This kind of graded crushing sand making machine has a material discharging transmission mechanism, and the material discharging transmission frame passes through the inner side of the positioning N-type frame, and is positioned with the material discharging hopper through the positioning connecting plate. The crushed material inside the material discharging hopper can fall into the inner side of the material discharging transmission frame, and then the transmission discharge blade is driven to rotate by controlling the inner rotating control rod driven by the control motor, so that the material can be continuously transported to the material discharging connection block for discharge, thereby realizing continuous and uniform material transportation, avoiding blockage and material breakage, and further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a graded crushing sand making machine of the present invention.

[0017] Figure 2 It is a partial structural schematic diagram of the dust removal mechanism and the material feeding and conveying mechanism in a graded crushing sand making machine of the present invention.

[0018] Figure 3 This is a partial structural schematic diagram of a material discharge and transmission mechanism in a graded crushing sand making machine of the present invention.

[0019] Figure 4 It is a partial structural schematic diagram of the dust removal mechanism and the material feeding and conveying mechanism in a graded crushing sand making machine of the present invention.

[0020] Figure 5It is a partial structural schematic diagram of the dust removal mechanism in a graded crushing sand making machine of the present invention.

[0021] Figure 6 This is a schematic diagram of the partial structural breakdown of the dust removal mechanism in a graded crushing sand making machine of the present invention.

[0022] In the figure: 1. Working stabilizing frame; 2. Sand making control frame; 3. Dust removal mechanism; 4. Upper feeding hopper; 5. Discharging conveying mechanism; 6. Primary crusher; 7. Intermediate crusher; 8. Ultrafine crusher; 301. Suction connecting pipe; 302. Stone-proof filter screen; 303. Bracket plate; 304. Oblique stabilizing plate; 305. Dust collection box; 306. Sealed movable cover; 307. Control pull groove; 308. Sealed protective pad ; 309, suction pump; 310, through-connecting hole; 311, positioning strap; 312, connecting strap; 313, dust collecting net; 501, discharge hopper; 502, positioning connecting plate; 503, support frame; 504, positioning N-type frame; 505, discharge transmission frame; 506, discharge connecting block; 507, inner discharge trough; 508, control motor; 509, inner rotating control lever; 510, transmission discharge blade. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figure 1-6 As shown, a graded crushing sand making machine comprises a working stable frame 1, a sand making control frame 2 is fixedly connected to the inner wall of the upper end of the working stable frame 1, a dust removing mechanism 3 is fixedly connected to one side of the working stable frame 1, an upper feeding hopper 4 is fixedly connected to the upper end of the sand making control frame 2, a primary crusher 6 is movably connected to the inner side of the upper feeding hopper 4, a material discharge transmission mechanism 5 is positioned and installed at the lower end of the sand making control frame 2, an intermediate crusher 7 and an ultrafine crusher 8 are fixedly connected to one side of the sand making control frame 2, the ultrafine crusher 8 is located at the lower end of the intermediate crusher 7, and the dust removing mechanism 3 comprises a suction connection pipe 301, an anti-dust pipe 302, and a dust removing mechanism 310. The stone filter 302, the support plate 303, the inclined stabilizing plate 304, the dust collection box 305, the sealed movable cover 306, the control groove 307, the sealed protective pad 308, the suction pump 309, the through-hole 310, the positioning strap 311, the connecting strap 312 and the dust collection net 313 can effectively capture and remove the dust and exhaust gas generated in the production process, reduce the pollution to the working environment, improve the working conditions and health level of the workers, and at the same time, prevent the dust from accumulating on the surface of the equipment, avoid equipment failure and downtime caused by dust, and thus improve production efficiency.

[0025] Furthermore, the suction connecting pipe 301 is located on the inner wall of the sand making control frame 2, the stone prevention filter 302 is located on the inner wall of the suction connecting pipe 301, the bracket plate 303 is located on one side of the working stable frame 1, the inclined stable plate 304 is located at the lower end of the bracket plate 303, the dust collection box 305 is located at the upper end of the bracket plate 303, the sealing movable cover 306 is located at the upper end of the dust collection box 305, and the control groove 307 is opened at the upper end of the sealing movable cover 306, which is convenient for opening the sealing movable cover 306 and cleaning the interior of the dust collection box 305.

[0026] Furthermore, the sealing protection pad 308 is located on the outer wall of the sealing movable cover 306, the suction pump 309 is located on one side of the dust collection box 305, the through connection hole 310 is opened at the upper end of one side of the dust collection box 305, the positioning strap 311 is located on the inner wall of the dust collection box 305, and the dust collection net 313 is located at the lower end of the connecting strap 312 and inside the dust collection box 305, for collecting dust and the like.

[0027] Furthermore, the outer wall of the suction connecting pipe 301 passes through the inner wall of the sand making control frame 2 and is fixed, the stone-proof filter 302 is embedded in the inner wall of the suction connecting pipe 301 and is fixed, one side of the bracket plate 303 is fixedly connected to one side of the working stabilizing frame 1, both ends of the inclined stabilizing plate 304 are fixedly connected to the lower end of the bracket plate 303, the lower end of the dust collection box 305 is fixedly connected to the upper end of the bracket plate 303, and the bracket plate 303 is supported at the lower end of the dust collection box 305 to enhance its stability.

[0028] Furthermore, the sealing movable cover 306 is opened and closed by a hinge on the inner side of the upper end of the dust collection box 305, one side of the sealing protection pad 308 is fixedly attached to the outer wall of the sealing movable cover 306 by strong glue, one side of the suction pump 309 is fixedly connected to one side of the dust collection box 305, the outer wall of the positioning strap 311 is fixedly connected to the inner wall of the dust collection box 305, the connecting strap 312 and the dust collection net 313 are integrally formed, and the lower end of the connecting strap 312 and the upper end of the positioning strap 311 are fixed by bolts to enhance firmness and facilitate disassembly and assembly at a later time.

[0029] Furthermore, the material discharge transmission mechanism 5 includes a material discharge hopper 501, a positioning connecting plate 502, a support frame 503, a positioning N-type frame 504, a material discharge transmission frame 505, a material discharge connecting block 506, an inner discharge trough 507, a control motor 508, an inner rotating control rod 509 and a transmission discharge blade 510. The material discharge hopper 501 is located at the lower end of the sand making control frame 2, and the positioning connecting plate 502 is located on the outer wall of the material discharge hopper 501 for connection and positioning.

[0030] Furthermore, the support frame 503 is located on the inner side of the working stabilizing frame 1, the positioning N-shaped frame 504 is located on the upper end of the support frame 503, the unloading transmission frame 505 is located on the inner side of the positioning N-shaped frame 504, the unloading connecting block 506 is located on one side of the lower end of the unloading transmission frame 505, the inner discharge trough 507 is opened on one side of the upper end of the unloading transmission frame 505, the control motor 508 is located at one end of the unloading transmission frame 505, the inner rotating control rod 509 and the transmission discharge blade 510 are both located inside the unloading transmission frame 505, and the transmission discharge blade 510 is located on the outer wall of the inner rotating control rod 509, which can continuously and evenly transport the material in the unloading transmission frame 505.

[0031] Furthermore, the upper end of the lower hopper 501 is fixedly connected to the lower end of the sand making control frame 2, the inner wall of the positioning connecting plate 502 is fixedly connected to the outer wall of the lower hopper 501, both ends of the support frame 503 are fixedly connected to the inner side of the working stability frame 1, the lower end of the positioning N-type frame 504 is fixedly connected to the upper end of the support frame 503, the lower material transmission frame 505 passes through the inner side of the positioning N-type frame 504 and is positioned between the positioning connecting plate 502 and the lower hopper 501, and the material in the lower hopper 501 can fall into the interior of the lower material transmission frame (505) through the inner discharge trough 507.

[0032] Furthermore, one end of the unloading connecting block 506 is embedded in the inner wall of the lower end of the unloading transmission frame 505 and is fixed, one end of the control motor 508 is fixed to one end of the unloading transmission frame 505 by bolts, one end of the inner rotating control rod 509 passes through the inner side of the unloading transmission frame 505 and is connected to the control motor 508, the inner wall of the transmission discharge blade 510 is fixedly connected to the outer wall of the inner rotating control rod 509, and when the inner rotating control rod 509 rotates, it will drive the transmission discharge blade 510 to rotate together, thereby realizing continuous and uniform transportation of materials, avoiding blockage and material breakage, and further improving production efficiency.

[0033] Working principle: A graded crushing sand making machine, including a working stabilizing frame 1, a sand making control frame 2, a dust removal mechanism 3, an upper feed hopper 4, a lower material transmission mechanism 5, a primary crusher 6, an intermediate crusher 7 and an ultra-fine crusher 8. When in use, the working stabilizing frame 1 is at the bottom to enhance the overall stability, the material can enter from the upper feed hopper 4, and is initially stirred and crushed by the primary crusher 6 to make the material more evenly distributed, and the material enters the interior of the sand making control frame 2, and is crushed by the intermediate crusher 7 and the ultra-fine crusher 8. The dust collecting box 305 is supported by the dust removal mechanism 3, the bracket plate 303 and the inclined stabilizing plate 304 at the lower end to enhance stability. The suction pump 309 can provide suction on the outer wall of the dust collecting box 305. The dust and fine particles generated during the crushing of the sand inside the sand control frame 2 can be sucked into the dust collecting net 313 inside the dust collecting box 305 through the suction connecting pipe 301 and the anti-stone filter net 302. The control groove 307 is then pulled to open the seal. The movable cover 306 can be used to take out the dust collection net 313 for cleaning, which can effectively capture and remove the dust and exhaust gas generated during the production process, reduce the pollution to the working environment, and improve the working conditions and health level of workers. At the same time, it can prevent dust from accumulating on the surface of the equipment, avoid equipment failure and downtime caused by dust, thereby improving production efficiency. The sealing protective pad 308 can enhance the sealing performance on the outer wall of the sealing movable cover 306. Through the set unloading transmission mechanism 5, the unloading transmission frame 505 passes through the inner side of the positioning N-shaped frame 504, and is positioned with the unloading hopper 501 through the positioning connecting plate 502 and bolts. The crushed material on the inside of the unloading hopper 501 can fall into the inner side of the unloading transmission frame 505, and then the inner rotating control rod 509 is driven by the control motor 508 to drive the transmission discharge blade 510 to rotate, so that the material can be continuously transported to the unloading connection block 506 for discharge, which can realize continuous and uniform material transportation, avoid blockage and material breakage, and further improve production efficiency.

[0034] It should be noted that, in this article, relational terms such as first and second (number one, number two), 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. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A graded crushing sand making machine, comprising a working stabilizing frame (1), characterized in that: The inner wall of the upper end of the working stabilizing frame (1) is fixedly connected to a sand making control frame (2); a dust removal mechanism (3) is fixedly connected to one side of the working stabilizing frame (1); an upper feed hopper (4) is fixedly connected to the upper end of the sand making control frame (2); a primary crusher (6) is movably connected to the inner side of the upper feed hopper (4); a material discharge transmission mechanism (5) is positioned and installed at the lower end of the sand making control frame (2); and an intermediate crusher (7) and an ultrafine crusher (8) are fixedly connected to one side of the sand making control frame (2). The ultrafine crusher (8) is located at the lower end of the intermediate crusher (7), and the dust removal mechanism (3) includes a suction connection pipe (301), a stone-proof filter screen (302), a support plate (303), an inclined stabilizing plate (304), a dust collection box (305), a sealing movable cover (306), a control groove (307), a sealing protective pad (308), a suction pump (309), a through connection hole (310), a positioning strap (311), a connecting strap (312) and a dust collection net (313).

2. A graded crushing sand making machine according to claim 1, characterized in that: The suction connection pipe (301) is located on the inner wall of the sand making control frame (2), the stone prevention filter (302) is located on the inner wall of the suction connection pipe (301), the support plate (303) is located on one side of the working stabilizing frame (1), the inclined stabilizing plate (304) is located at the lower end of the support plate (303), the dust collection box (305) is located at the upper end of the support plate (303), the sealing movable cover (306) is located at the upper end of the dust collection box (305), and the control groove (307) is opened at the upper end of the sealing movable cover (306).

3. A graded crushing sand making machine according to claim 2, characterized in that: The sealing protection pad (308) is located on the outer wall of the sealing movable cover (306), the suction pump (309) is located on one side of the dust collection box (305), the through connection hole (310) is opened at the upper end of one side of the dust collection box (305), the positioning strap (311) is located on the inner wall of the dust collection box (305), and the dust collection net (313) is located at the lower end of the connecting strap (312) and is located inside the dust collection box (305).

4. A graded crushing sand making machine according to claim 3, characterized in that: The outer wall of the suction connection pipe (301) penetrates the inner wall of the sand making control frame (2) and is fixed thereto; the stone prevention filter (302) is embedded in the inner wall of the suction connection pipe (301) and is fixed thereto; one side of the support plate (303) is fixedly connected to one side of the working stabilizing frame (1); both ends of the inclined stabilizing plate (304) are fixedly connected to the lower end of the support plate (303); and the lower end of the dust collection box (305) is fixedly connected to the upper end of the support plate (303).

5. A graded crushing sand making machine according to claim 4, characterized in that: The sealing movable cover (306) is opened and closed by means of a hinge on the inner side of the upper end of the dust collection box (305); one side of the sealing protective pad (308) is fixedly attached to the outer wall of the sealing movable cover (306) by means of strong glue; one side of the suction pump (309) is fixedly connected to one side of the dust collection box (305); the outer wall of the positioning strap (311) is fixedly connected to the inner wall of the dust collection box (305); the connecting strap (312) is integrally formed with the dust collection net (313); and the lower end of the connecting strap (312) is fixedly connected to the upper end of the positioning strap (311) by means of bolts.

6. A graded crushing sand making machine according to claim 5, characterized in that: The material discharge transmission mechanism (5) comprises a material discharge hopper (501), a positioning connection plate (502), a support frame (503), a positioning N-shaped frame (504), a material discharge transmission frame (505), a material discharge connection block (506), an inner discharge trough (507), a control motor (508), an inner rotating control rod (509) and a transmission discharge blade (510); the material discharge hopper (501) is located at the lower end of the sand making control frame (2), and the positioning connection plate (502) is located on the outer wall of the material discharge hopper (501).

7. A graded crushing sand making machine according to claim 6, characterized in that: The support frame (503) is located on the inner side of the working stabilizing frame (1); the positioning N-shaped frame (504) is located at the upper end of the support frame (503); the unloading transmission frame (505) is located on the inner side of the positioning N-shaped frame (504); the unloading connection block (506) is located on one side of the lower end of the unloading transmission frame (505); the inner discharge groove (507) is opened on one side of the upper end of the unloading transmission frame (505); the control motor (508) is located at one end of the unloading transmission frame (505); the inner rotating control rod (509) and the transmission discharge blade (510) are both located inside the unloading transmission frame (505); and the transmission discharge blade (510) is located on the outer wall of the inner rotating control rod (509).

8. A graded crushing sand making machine according to claim 7, characterized in that: The upper end of the lower hopper (501) is fixedly connected to the lower end of the sand making control frame (2), the inner wall of the positioning connecting plate (502) is fixedly connected to the outer wall of the lower hopper (501), both ends of the support frame (503) are fixedly connected to the inner side of the working stabilizing frame (1), the lower end of the positioning N-shaped frame (504) is fixedly connected to the upper end of the support frame (503), and the lower material transfer frame (505) passes through the inner side of the positioning N-shaped frame (504) and is positioned between the positioning connecting plate (502) and the lower hopper (501).

9. A graded crushing sand making machine according to claim 8, characterized in that: One end of the material unloading connection block (506) is embedded in the inner wall of the lower end of the material unloading transmission frame (505) and is fixed thereto; one end of the control motor (508) is fixed to one end of the material unloading transmission frame (505) by means of bolts; one end of the inner rotating control rod (509) passes through the inner side of the material unloading transmission frame (505) and is connected to the control motor (508); and the inner wall of the transmission discharge blade (510) is fixedly connected to the outer wall of the inner rotating control rod (509).

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