Rotor feeding structure of sand making machine

Abstract

The rotor feeding structure comprises a sand making machine rotor, the interior of the upper end of the sand making machine rotor is movably connected with a feeding hopper, the outer wall of the feeding hopper is fixedly connected with a lifting mechanism, and the inner wall of the feeding hopper is provided with a smashing mechanism in a positioning mode; the lifting mechanism comprises a semicircular positioning frame, a connecting plate, a supporting plate, an inner positioning threaded hole, a lifting push rod, a connecting threaded ring, a limiting plate, a lower control lifting frame, an inner control air cylinder and a telescopic piston rod. According to the rotor feeding structure of the sand making machine, adjustment can be conducted within a certain range according to working requirements through the arranged lifting mechanism, follow-up maintenance of a rotor and the feeding hopper of the sand making machine is facilitated, materials entering the feeding hopper can be preliminarily stirred and crushed through the arranged stirring and crushing mechanism, and the feeding efficiency of the sand making machine is improved. And the materials are more uniformly distributed, so that the blockage phenomenon of the materials in the rotor is reduced, and the processing efficiency of the rotor is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand making machines, and in particular to a rotor feeding structure of a sand making machine. Background Art

[0002] Sand making machine is a mechanical equipment used to produce machine-made sand. It is widely used in construction, mining, ores, roads, building materials, sand and gravel plants, refractory materials, concrete aggregates, construction waste and other fields. It can crush various rocks, ores, concrete and other materials into sand particles that meet specifications to meet engineering construction and other industrial needs. The rotor is the core component of the sand making machine, which is responsible for high-speed rotation and crushing of materials. The feeding structure is needed in the sand making process.

[0003] The rotor feeding structure of a common sand making machine has a relatively simple structure and certain functional limitations. If the material is not stirred and initially crushed before entering the inner cavity of the rotor, uneven material distribution may occur. After the uneven material enters the rotor, it will affect the balanced operation of the rotor and may cause abnormal vibration and wear of the equipment. If the material directly enters the inner cavity of the rotor, it may cause congestion in the inner cavity of the rotor, which will reduce the processing efficiency of the material because the rotor requires more time and energy to process these untreated materials. At the same time, the feed hopper is usually fixed, which is not convenient for adjustment and cannot be adjusted in time according to needs, which brings certain adverse effects to people's use process. For this reason, we propose a rotor feeding structure for a sand making machine. Summary of the invention

[0004] Technical problems to be solved: In view of the deficiencies in the prior art, the present invention provides a rotor feeding structure for a sand making machine, which has the advantages of improving material uniformity, adjustment, strong adaptability, etc. Through the provided lifting mechanism, the lifting push rod is positioned with the support plate by connecting the threaded ring and the inner positioning threaded hole, and the internal control cylinder inside the lower control lifting frame drives the telescopic piston rod to lift and move, which can drive the lifting push rod and the support plate at its upper end to lift and move together, so that the semicircular positioning frame and the inner wall feed hopper can be lifted and moved. Within a certain range, it can be adjusted according to work requirements, which is convenient for subsequent maintenance of the sand making machine rotor and the feed hopper, and through the provided crushing mechanism, the material can be stably The fixed bracket is positioned on the outer wall of the feed hopper through the positioning plate, and the inclined support plate strengthens the support and stability at the lower end of the stable bracket. The No. 1 rotating rod and the No. 2 rotating rod are positioned with the feed hopper through connecting bearings. The control motor drives the No. 1 rotating rod to drive the No. 1 gear and the No. 1 crushing roller to rotate together. The No. 2 gear meshing with the No. 1 gear will drive the No. 2 rotating rod and the No. 2 crushing roller to rotate together. The No. 1 crushing roller and the No. 2 crushing roller are adapted to each other, and can perform preliminary stirring and crushing on the material entering the feed hopper to make the material more evenly distributed, which helps to reduce the congestion of materials in the rotor and improve the processing efficiency of the rotor, which can 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 rotor feeding structure of a sand making machine, including a sand making machine rotor, the upper end of the sand making machine rotor is internally movably connected with a feed hopper, the outer wall of the feed hopper is fixedly connected with a lifting mechanism, and the inner wall of the feed hopper is positioned with a crushing mechanism, and the lifting mechanism includes a semicircular positioning frame, a connecting plate, a support plate, an internal positioning threaded hole, a lifting push rod, a connecting thread ring, a limit plate, a lower control lifting frame, an internal control cylinder and a telescopic piston rod.

[0006] Preferably, the semicircular positioning frames are located on both sides of the outer wall of the feed hopper, the support plates are located on both sides of the outer wall of the semicircular positioning frames, the connecting plates are located on the outer wall of the semicircular positioning frames, and the inner positioning threaded holes are opened at the upper ends of the support plates.

[0007] Preferably, the connecting thread ring is opened on the outer wall of the upper end of the lifting push rod, the limit plate is located at the lower end of the lifting push rod, the inner control cylinder is located inside the lower control lifting frame, and the telescopic piston rod is located on the inner wall of the inner control cylinder.

[0008] Preferably, the inner wall of the semicircular positioning frame is fixed to the outer wall of the feed hopper by bolts, one side of the connecting plate is fixedly connected to both sides of the outer wall of the semicircular positioning frame, one end of the support plate is fixedly connected to the outer wall of the semicircular positioning frame, and the lifting push rod is positioned with the support plate by connecting the threaded ring and the inner positioning threaded hole.

[0009] Preferably, the inner wall of the limit plate is fixedly connected to the lower end of the outer wall of the lifting push rod, the lower end of the inner control cylinder is fixedly connected to the lower end of the inner wall of the lower control lifting frame, the outer wall of the telescopic piston rod is movably connected to the inner wall of the inner control cylinder, the outer wall of the lifting push rod is movably connected to the inner wall of the lower control lifting frame, and the upper end of the telescopic piston rod is fixedly connected to the inner wall of the lifting push rod.

[0010] Preferably, the crushing mechanism includes a connecting bearing, a positioning plate, a stabilizing bracket, an inclined support plate, a fixing plate, a control motor, a No. 1 rotating rod, a No. 1 gear, a No. 1 crushing roller, a No. 2 rotating rod, a No. 2 gear and a No. 2 crushing roller, the connecting bearing is located on one side of the inner wall of the feed hopper, and the positioning plate is located on the outer wall of the feed hopper and at the lower end of the connecting bearing.

[0011] Preferably, the stabilizing bracket is located on the outer wall of the positioning plate, the inclined support plate is located at the lower end of the stabilizing bracket, the fixed plate is located at the upper end of the stabilizing bracket, the control motor is located on one side of the fixed plate, the No. 1 rotating rod is located on the other side of the fixed plate, the No. 1 gear is located on the outer wall of one end of the No. 1 rotating rod, the No. 1 crushing roller is located on the outer wall of the No. 1 rotating rod, the No. 2 rotating rod is located on one side of the No. 1 rotating rod, the No. 2 gear is located on the outer wall of one end of the No. 2 rotating rod and is meshed with the No. 1 gear, and the No. 2 crushing roller is located on the outer wall of the No. 2 rotating rod and is meshed with the No. 1 crushing roller.

[0012] Preferably, the outer wall of the connecting bearing is fixedly connected to the inner wall of the feed hopper, the inner wall of the positioning plate is fixedly connected to the outer wall of the feed hopper, one side of the stabilizing bracket is fixedly connected to the outer wall of the positioning plate, one end of the inclined support plate is fixedly connected to the lower end of the stabilizing bracket, and the other side of the inclined support plate is fixedly connected to the lower end of the outer wall of the positioning plate.

[0013] Preferably, the lower end of the fixed plate is fixedly connected to the upper end of the stabilizing bracket, one end of the control motor is fixed to one side of the fixed plate by bolts, one end of the No. 1 rotating rod passes through the inner side of the fixed plate and is connected to the control motor, the inner wall of the No. 1 gear and the No. 1 crushing roller are fixedly connected to the outer wall of the No. 1 rotating rod, one end of the No. 2 rotating rod is fixedly connected to one side of the fixed plate and moves through a bearing, and the inner wall of the No. 2 gear and the No. 2 crushing roller are fixedly connected to the outer wall of the No. 2 rotating rod.

[0014] Beneficial effects: Compared with the prior art, the present invention provides a rotor feeding structure for a sand making machine, which has the following beneficial effects: 1. The rotor feeding structure of this sand making machine is provided with a lifting mechanism, and the lifting push rod is positioned with the support plate by connecting the threaded ring and the internal positioning threaded hole. The internal control cylinder inside the lower control lifting frame drives the telescopic piston rod to lift and move, which can drive the lifting push rod and the support plate at its upper end to lift and move together, so that the semicircular positioning frame and the inner wall feed hopper can be lifted and lowered. Within a certain range, it can be adjusted according to work requirements, which is convenient for subsequent maintenance of the sand making machine rotor and feed hopper.

[0015] 2. The rotor feeding structure of the sand making machine has a crushing mechanism, and the stabilizing bracket is positioned on the outer wall of the feed hopper through the positioning plate. The oblique support plate strengthens the support and stability at the lower end of the stabilizing bracket. The No. 1 rotating rod and the No. 2 rotating rod are both positioned with the feed hopper through the connecting bearing. The control motor drives the No. 1 rotating rod to drive the No. 1 gear and the No. 1 crushing roller to rotate together. The No. 2 gear meshing with the No. 1 gear will drive the No. 2 rotating rod and the No. 2 crushing roller to rotate together. The No. 1 crushing roller and the No. 2 crushing roller are adapted to each other, and can perform preliminary stirring and crushing on the materials entering the feed hopper, so that the materials are more evenly distributed. This helps to reduce the congestion of materials in the rotor and improve the processing efficiency of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a rotor feeding structure of a sand making machine according to the present invention.

[0017] Figure 2 This is a partial structural schematic diagram of a feed hopper and a crushing mechanism in a rotor feeding structure of a sand making machine of the present invention.

[0018] Figure 3 It is a partial structural schematic diagram of a crushing mechanism in a rotor feeding structure of a sand making machine according to the present invention.

[0019] Figure 4 This is a partial structural schematic diagram of a lifting mechanism in a rotor feeding structure of a sand making machine according to the present invention.

[0020] Figure 5 This is a schematic diagram of the partial structural decomposition of the lifting mechanism in the rotor feeding structure of a sand making machine of the present invention.

[0021] Figure 6 This is a partial structural plan view of the lifting mechanism in the rotor feeding structure of a sand making machine according to the present invention.

[0022] In the figure: 1. Sand making machine rotor; 2. Lifting mechanism; 3. Crushing mechanism; 4. Feed hopper; 201. Semicircular positioning frame; 202. Connecting plate; 203. Support plate; 204. Internal positioning threaded hole; 205. Lifting push rod; 206. Connecting thread ring; 207. Limiting plate; 208. Lower control lifting frame; 209. Internal control cylinder; 210. Telescopic piston rod; 301. Connecting bearing; 302. Positioning plate; 303. Stable bracket; 304. Oblique support plate; 305. Fixed plate; 306. Control motor; 307. No. 1 rotating rod; 308. No. 1 gear; 309. No. 1 crushing roller; 310. No. 2 rotating rod; 311. No. 2 gear; 312. No. 2 crushing roller. 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 rotor feeding structure of a sand making machine includes a sand making machine rotor 1, the upper end of the sand making machine rotor 1 is internally movably connected with a feed hopper 4, the outer wall of the feed hopper 4 is fixedly connected with a lifting mechanism 2, and the inner wall of the feed hopper 4 is positioned and installed with a crushing mechanism 3, the lifting mechanism 2 includes a semicircular positioning frame 201, a connecting plate 202, a support plate 203, an internal positioning threaded hole 204, a lifting push rod 205, a connecting thread ring 206, a limit plate 207, a lower control lifting frame 208, an internal control cylinder 209 and a telescopic piston rod 210, which can be adjusted within a certain range according to work requirements to facilitate subsequent maintenance of the sand making machine rotor 1 and the feed hopper 4.

[0025] Furthermore, the semicircular positioning frames 201 are located on both sides of the outer wall of the feed hopper 4, the support plates 203 are located on both sides of the outer wall of the semicircular positioning frames 201, the connecting plates 202 are located on the outer wall of the semicircular positioning frames 201, and the inner positioning threaded holes 204 are opened at the upper ends of the support plates 203. The inner positioning threaded holes 204 and the connecting threaded rings 206 are adapted to each other for connection and positioning.

[0026] Furthermore, the connecting thread ring 206 is opened on the outer wall of the upper end of the lifting push rod 205, the limit plate 207 is located at the lower end of the lifting push rod 205, the inner control cylinder 209 is located inside the lower control lifting frame 208, and the telescopic piston rod 210 is located on the inner wall of the inner control cylinder 209. The No. 1 crushing roller 309 can drive the telescopic piston rod 210 to drive the lifting push rod 205 to move up and down.

[0027] Furthermore, the inner wall of the semicircular positioning frame 201 is fixed to the outer wall of the feed hopper 4 by bolts, one side of the connecting plate 202 is fixedly connected to the two sides of the outer wall of the semicircular positioning frame 201, one end of the support plate 203 is fixedly connected to the outer wall of the semicircular positioning frame 201, and the lifting push rod 205 is positioned with the support plate 203 by connecting the threaded ring 206 and the inner positioning threaded hole 204, thereby enhancing the firmness and facilitating the disassembly and replacement thereof at a later stage.

[0028] Furthermore, the inner wall of the limit plate 207 is fixedly connected to the lower end of the outer wall of the lifting push rod 205, the lower end of the inner control cylinder 209 is fixedly connected to the lower end of the inner wall of the lower control lifting frame 208, the outer wall of the telescopic piston rod 210 is movably connected to the inner wall of the inner control cylinder 209, the outer wall of the lifting push rod 205 is movably connected to the inner wall of the lower control lifting frame 208, the upper end of the telescopic piston rod 210 is fixedly connected to the inner wall of the lifting push rod 205, and when the inner control cylinder 209 drives the telescopic piston rod 210 to move up and down, it will drive the lifting push rod 205 to move up and down, thereby driving the lifting and lowering of the feed hopper 4, which is convenient for subsequent maintenance.

[0029] Furthermore, the crushing mechanism 3 includes a connecting bearing 301, a positioning plate 302, a stabilizing bracket 303, an inclined support plate 304, a fixing plate 305, a control motor 306, a No. 1 rotating rod 307, a No. 1 gear 308, a No. 1 crushing roller 309, a No. 2 rotating rod 310, a No. 2 gear 311 and a No. 2 crushing roller 312. The connecting bearing 301 is located on one side of the inner wall of the feed hopper 4, and the positioning plate 302 is located on the outer wall of the feed hopper 4 and at the lower end of the connecting bearing 301, which is used for connection positioning to enhance firmness.

[0030] Furthermore, the stabilizing bracket 303 is located on the outer wall of the positioning plate 302, the inclined support plate 304 is located at the lower end of the stabilizing bracket 303, the fixed plate 305 is located at the upper end of the stabilizing bracket 303, the control motor 306 is located on one side of the fixed plate 305, the No. 1 rotating rod 307 is located on the other side of the fixed plate 305, the No. 1 gear 308 is located on the outer wall of one end of the No. 1 rotating rod 307, the No. 1 crushing roller 309 is located on the outer wall of the No. 1 rotating rod 307, the No. 2 rotating rod 310 is located on one side of the No. 1 rotating rod 307, the No. 2 gear 311 is located on the outer wall of one end of the No. 2 rotating rod 310 and is meshed with the No. 1 gear 308, the No. 2 crushing roller 312 is located on the outer wall of the No. 2 rotating rod 310 and is meshed with the No. 1 crushing roller 309, and when the No. 1 crushing roller 309 and the No. 2 crushing roller 312 rotate with each other, the material entering the feed hopper 4 can be preliminarily stirred and crushed to make the material more evenly distributed. This helps to reduce material congestion in the rotor and improve the rotor's processing efficiency.

[0031] Furthermore, the outer wall of the connecting bearing 301 is fixedly connected to the inner wall of the feed hopper 4, the inner wall of the positioning plate 302 is fixedly connected to the outer wall of the feed hopper 4, one side of the stabilizing bracket 303 is fixedly connected to the outer wall of the positioning plate 302, one end of the inclined support plate 304 is fixedly connected to the lower end of the stabilizing bracket 303, and the other side of the inclined support plate 304 is fixedly connected to the lower end of the outer wall of the positioning plate 302, thereby strengthening the supporting force at the lower end of the stabilizing bracket 303 to make it more stable.

[0032] Furthermore, the lower end of the fixed plate 305 is fixedly connected to the upper end of the stable bracket 303, one end of the control motor 306 is fixed to one side of the fixed plate 305 by bolts, one end of the No. 1 rotating rod 307 passes through the inner side of the fixed plate 305 and is connected to the control motor 306, the inner wall of the No. 1 gear 308 and the No. 1 crushing roller 309 are fixedly connected to the outer wall of the No. 1 rotating rod 307, one end of the No. 2 rotating rod 310 is fixedly connected to one side of the fixed plate 305 and moves through the bearing, the inner wall of the No. 2 gear 311 and the No. 2 crushing roller 312 are fixedly connected to the outer wall of the No. 2 rotating rod 310, when the No. 1 rotating rod 307 drives the No. 1 gear 308 to rotate, the No. 1 gear 308 and the No. 2 gear 311 engage with each other to drive the No. 2 rotating rod 310 to drive the No. 2 crushing roller 312 to rotate together, so as to perform preliminary stirring and crushing of the material.

[0033] Working principle: A rotor feeding structure of a sand making machine comprises a sand making machine rotor 1, a lifting mechanism 2, a crushing mechanism 3 and a feeding hopper 4. When in use, the material can be poured into the feeding hopper 4, and the sand making machine rotor 1 is responsible for receiving and dispersing the material. Through the provided lifting mechanism 2, the lifting push rod 205 is positioned with the support plate 203 by connecting the threaded ring 206 and the inner positioning threaded hole 204. The inner control cylinder 209 inside the lower control lifting frame 208 drives the telescopic piston rod 210 to lift and move, which can drive the lifting push rod 205 and the support plate 203 at its upper end to lift and move together, so that the semicircular positioning frame 201 and the feeding hopper 4 on the inner wall can be lifted and moved. Within a certain range, it can be adjusted according to work requirements, which is convenient for subsequent maintenance of the sand making machine rotor 1 and the feeding hopper 4. By setting The crushing mechanism 3, the stabilizing bracket 303 is positioned on the outer wall of the feed hopper 4 through the positioning plate 302, the oblique support plate 304 strengthens the support and stability at the lower end of the stabilizing bracket 303, the No. 1 rotating rod 307 and the No. 2 rotating rod 310 are both positioned with the feed hopper 4 through the connecting bearing 301, the control motor 306 drives the No. 1 rotating rod 307 to drive the No. 1 gear 308 and the No. 1 crushing roller 309 to rotate together, the No. 2 gear 311 meshing with the No. 1 gear 308 will drive the No. 2 rotating rod 310 and the No. 2 crushing roller 312 to rotate together, the No. 1 crushing roller 309 and the No. 2 crushing roller 312 are adapted to each other, and can perform preliminary stirring and crushing on the material entering the feed hopper 4, so that the material is more evenly distributed, which helps to reduce the congestion of the material in the rotor and improve the processing efficiency of the rotor.

[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 rotor feeding structure for a sand making machine, comprising a sand making machine rotor (1), characterized in that: The upper end of the sand making machine rotor (1) is movably connected to a feed hopper (4), the outer wall of the feed hopper (4) is fixedly connected to a lifting mechanism (2), the inner wall of the feed hopper (4) is positioned and installed with a crushing mechanism (3), and the lifting mechanism (2) comprises a semicircular positioning frame (201), a connecting plate (202), a supporting plate (203), an inner positioning threaded hole (204), a lifting push rod (205), a connecting threaded ring (206), a limit plate (207), a lower control lifting frame (208), an inner control cylinder (209) and a telescopic piston rod (210).

2. The rotor feeding structure of a sand making machine according to claim 1, characterized in that: The semicircular positioning frames (201) are located on both sides of the outer wall of the feed hopper (4), the support plates (203) are located on both sides of the outer wall of the semicircular positioning frames (201), the connecting plates (202) are located on the outer wall of the semicircular positioning frames (201), and the inner positioning threaded holes (204) are opened at the upper ends of the support plates (203).

3. The rotor feeding structure of a sand making machine according to claim 2, characterized in that: The connecting thread ring (206) is formed on the outer wall of the upper end of the lifting push rod (205), the limiting plate (207) is located at the lower end of the lifting push rod (205), the inner control cylinder (209) is located inside the lower control lifting frame (208), and the telescopic piston rod (210) is located on the inner wall of the inner control cylinder (209).

4. The rotor feeding structure of a sand making machine according to claim 3 is characterized in that: The inner wall of the semicircular positioning frame (201) is fixed to the outer wall of the feed hopper (4) by means of bolts; one side of the connecting plate (202) is fixedly connected to both sides of the outer wall of the semicircular positioning frame (201); one end of the supporting plate (203) is fixedly connected to the outer wall of the semicircular positioning frame (201); and the lifting push rod (205) is positioned with the supporting plate (203) by means of a connecting thread ring (206) and an inner positioning thread hole (204).

5. The rotor feeding structure of a sand making machine according to claim 4, characterized in that: The inner wall of the limit plate (207) is fixedly connected to the lower end of the outer wall of the lifting push rod (205), the lower end of the inner control cylinder (209) is fixedly connected to the lower end of the inner wall of the lower control lifting frame (208), the outer wall of the telescopic piston rod (210) is movably connected to the inner wall of the inner control cylinder (209), the outer wall of the lifting push rod (205) is movably connected to the inner wall of the lower control lifting frame (208), and the upper end of the telescopic piston rod (210) is fixedly connected to the inner wall of the lifting push rod (205).

6. The rotor feeding structure of a sand making machine according to claim 5, characterized in that: The crushing mechanism (3) comprises a connecting bearing (301), a positioning plate (302), a stabilizing bracket (303), an inclined supporting plate (304), a fixing plate (305), a control motor (306), a first rotating rod (307), a first gear (308), a first crushing roller (309), a second rotating rod (310), a second gear (311) and a second crushing roller (312); the connecting bearing (301) is located on one side of the inner wall of the feed hopper (4); and the positioning plate (302) is located on the outer wall of the feed hopper (4) and at the lower end of the connecting bearing (301).

7. The rotor feeding structure of a sand making machine according to claim 6, characterized in that: The stabilizing bracket (303) is located on the outer wall of the positioning plate (302), the oblique supporting plate (304) is located at the lower end of the stabilizing bracket (303), the fixing plate (305) is located at the upper end of the stabilizing bracket (303), the control motor (306) is located on one side of the fixing plate (305), the number one rotating rod (307) is located on the other side of the fixing plate (305), and the number one gear (308) is located at one end of the number one rotating rod (307). The first crushing roller (309) is located on the outer wall of the first rotating rod (307), the second rotating rod (310) is located on one side of the first rotating rod (307), the second gear (311) is located on the outer wall of one end of the second rotating rod (310) and is meshed with the first gear (308), and the second crushing roller (312) is located on the outer wall of the second rotating rod (310) and is meshed with the first crushing roller (309).

8. The rotor feeding structure of a sand making machine according to claim 7, characterized in that: The outer wall of the connecting bearing (301) is fixedly connected to the inner wall of the feed hopper (4), the inner wall of the positioning plate (302) is fixedly connected to the outer wall of the feed hopper (4), one side of the stabilizing bracket (303) is fixedly connected to the outer wall of the positioning plate (302), one end of the inclined support plate (304) is fixedly connected to the lower end of the stabilizing bracket (303), and the other side of the inclined support plate (304) is fixedly connected to the lower end of the outer wall of the positioning plate (302).

9. The rotor feeding structure of a sand making machine according to claim 8, characterized in that: The lower end of the fixed plate (305) is fixedly connected to the upper end of the stabilizing bracket (303); one end of the control motor (306) is fixedly connected to one side of the fixed plate (305) by means of bolts; one end of the first rotating rod (307) passes through the inner side of the fixed plate (305) and is connected to the control motor (306); the inner walls of the first gear (308) and the first crushing roller (309) are fixedly connected to the outer wall of the first rotating rod (307); one end of the second rotating rod (310) is fixedly connected to one side of the fixed plate (305) and moves through a bearing; the inner walls of the second gear (311) and the second crushing roller (312) are fixedly connected to the outer wall of the second rotating rod (310).

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