Adjustable grain grinding device

Abstract

The invention discloses an adjustable grain grinding device, and relates to the technical field of grain grinding, the adjustable grain grinding device comprises a grinding mechanism and a material pouring ring mounted in the grinding mechanism, the top of the grinding mechanism is provided with a crushing and discharging mechanism, the bottom of the crushing and discharging mechanism is provided with a discharging support, and the grinding mechanism comprises a grinding box; a bottom supporting frame is fixedly installed on the inner side of the bottom of the grinding box, a grinding motor is fixedly installed at the center position of the bottom of the bottom supporting frame, the output end of the grinding motor is fixedly connected with a grinding rotating rod, and grinding rotating grooves are formed in the periphery of the outer side of the grinding rotating rod in a vertically symmetrical mode; the grinding disc is extruded by the adjusting block to achieve lifting movement of the grinding disc, so that the distance between the through groove in the center of the grinding disc and the conical check block is increased, meanwhile, the distance between the grinding disc and the spiral grinding support is adjusted, and the grinding thickness degree can be controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of grain grinding, and particularly to an adjustable grain grinding device. Background Art

[0002] Grain milling, also known as food processing, refers to the production activities of shelling, grinding and fine processing of grains such as rice, millet, wheat, sorghum, etc. Different food requirements of people can be conveniently obtained by grinding grains into powder to make different foods.

[0003] The patent publication number CN 217189777 U discloses a multi-stage grinding device for grain processing. By setting a grinding disc, a grinding base, an adjusting mechanism, a moving mechanism and a connecting column, the moving mechanism drives the adjusting mechanism to move. The adjusting mechanism pushes the connecting column to rise through the inclined groove of the adjusting plate, and the connecting column drives the grinding base to rise, so that the gap between the grinding disc and the grinding base is reduced. When grains pass through the gap between the grinding disc and the grinding base, they need to be squeezed into smaller particle powders, and thus grain powders with different grinding levels can be obtained. By setting a sealing ring, the sealing ring seals between the grinding base and the grinding box to prevent grains or grain powders from getting stuck between the grinding base and the grinding box. However, the following problems still exist in the actual use of this patent: Although the multi-stage grinding device for grain processing reduces the gap between the grinding disc and the grinding base by pushing the connecting column to rise through the inclined groove of the adjusting plate, and grains need to be squeezed into smaller particle powders when passing through the gap between the grinding disc and the grinding base, so that grain powders with different grinding levels can be obtained. However, during the grinding process, dust particles rub and collide with the equipment wall, pipelines, etc., resulting in charge separation and thus generating static electricity. The finer the dust particles are, the more oxygen is adsorbed on the surface, and the easier it is to generate static electricity. When grinding grains, due to the influence of static electricity, the ground grain powders adhere to the grinding disc, thus affecting the subsequent grinding effect. At the same time, the corresponding crushing of materials cannot be carried out according to the thickness of the grinding particles, resulting in insufficient crushing of grains and thus affecting the efficiency of grain grinding.

[0004] Therefore, an adjustable grain grinding device is proposed to solve the problems mentioned above. Summary of the Invention

[0005] The object of the present invention is to provide an adjustable grain grinding device to solve the problems raised in the above background technology. During the grinding process, dust particles rub and collide with the equipment wall, pipelines, etc., resulting in charge separation, thus generating static electricity. The finer the dust particles, the more oxygen adsorbed on the surface, and the easier it is to carry static electricity. When grinding grains, due to the influence of static electricity, the ground grain powder adheres to the grinding disc, thus affecting the subsequent grinding effect. At the same time, the material cannot be correspondingly broken according to the fineness of the grinding particles, resulting in insufficient crushing of the grains, thus affecting the efficiency of grain grinding.

[0006] To achieve the above object, the present invention provides the following technical solution: An adjustable grain grinding device includes a grinding mechanism and a feeding ring installed inside the grinding mechanism. A crushing and feeding mechanism is arranged at the top of the grinding mechanism, and a feeding support is arranged at the bottom of the crushing and feeding mechanism. It further includes: The grinding mechanism includes a grinding box. A bottom support frame is fixedly installed on the inner side of the bottom of the grinding box, and a grinding motor is fixedly installed at the central position of the bottom of the bottom support frame. Wherein, the output end of the grinding motor is fixedly connected with a grinding rotating rod, and grinding rotating grooves are symmetrically arranged up and down around the outer side of the grinding rotating rod. Wherein, spiral grinding support frames are fixedly installed at the bottoms of the grinding rotating rod close to the grinding rotating grooves, and a conical stopper is fixedly installed at the bottom of the spiral grinding support frame. Anti-static rings are fixedly installed on the upper and lower parts inside the grinding box. A meshing bevel gear ring is fixedly installed on the top of the two anti-static rings. A rotating ring is rotatably connected to the top of the meshing bevel gear ring. Rotating bevel gears are rotatably connected to the inner circumferences of the rotating ring. The rotating bevel gears are meshed with the meshing bevel gear ring. A first crushing roller is fixedly installed inside the rotating bevel gear. A first crushing knife is fixedly installed on the outer side of the first crushing roller. A number of first springs are fixedly installed inside the first crushing roller. A crushing knocking block is fixedly installed at the end of the first spring. A rotating connecting shaft is fixedly installed on the side of the first crushing roller away from the rotating bevel gear. The rotating connecting shaft is rotatably connected with the grinding rotating rod through the grinding rotating groove. A number of telescopic sliding grooves are formed inside the anti-static ring. An adjusting threaded rod is threadedly connected to the outer side of the anti-static ring close to the telescopic sliding groove. An adjusting knob is fixedly installed on the outer side of the adjusting threaded rod. An adjusting block is rotatably connected to the end of the adjusting threaded rod away from the adjusting knob. A grinding disc is arranged on the top of the adjusting block. A number of connecting springs are fixedly installed at the bottom of the grinding disc. A connecting block is fixedly installed at the bottom of the connecting spring. The connecting block is fixedly installed on the inner side of the anti-static ring.

[0007] Preferably, a top bracket is rotatably connected to the top of the grinding rotating rod, the top bracket is fixedly installed inside the grinding box, a feeding bracket is fixedly installed on the top of the grinding box, an installation ring is fixedly installed on the outer side of the bottom of the grinding box, support legs are fixedly installed around the bottom of the installation ring, and a through groove is formed at the center of the grinding disc.

[0008] Preferably, the crushing and feeding mechanism includes a crushing box, guide plates are symmetrically installed on the inner side of the top of the crushing box, a feeding hopper is fixedly installed on the top of the crushing box, a crushing motor is fixedly installed on one side of the crushing box, the output end of the crushing motor is fixedly connected to a gear transmission assembly, and second crushing rollers are symmetrically installed on one side of the gear transmission assembly.

[0009] Preferably, a number of second springs are fixedly installed inside the second crushing roller, a third crushing knife is fixedly installed at the end of the second spring, a stirring box is fixedly installed at the bottom of the crushing box, a stirring motor is fixedly installed on one side of the stirring box, the output end of the stirring motor is fixedly connected to a first rotating disc, and a number of stirring connecting rods are fixedly installed on one side of the first rotating disc.

[0010] Preferably, a second stirring disc is fixedly installed at the end of the stirring connecting rod far from the first rotating disc, both the first rotating disc and the second stirring disc are rotatably connected to the stirring box, a number of stirring brackets are fixedly installed between the first rotating disc and the second stirring disc, and stirring scrapers are fixedly installed on the outer side of the stirring brackets.

[0011] Preferably, the feeding bracket is fixedly installed at the bottom of the stirring box, the feeding bracket is fixedly installed on the top of the guiding bracket, a sprocket limiting cover is fixedly installed on one side of the feeding bracket, an opening and closing motor is fixedly installed on one side inside the sprocket limiting cover, the output end of the opening and closing motor is fixedly connected to a sprocket transmission assembly, opening and closing bidirectional threaded rods are symmetrically installed on one side of the sprocket transmission assembly, opening and closing threaded sleeves are symmetrically threaded on the outer sides of the two opening and closing bidirectional threaded rods, an opening and closing baffle is fixedly installed on the tops of the two opening and closing threaded sleeves, and the opening and closing baffle is slidably connected to the feeding bracket.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: For this adjustable grain grinding device, the lifting movement of the grinding disc can be realized by the adjusting block pressing the grinding disc, so as to increase the distance between the through groove at the center of the grinding disc and the conical stopper, and at the same time adjust the distance between the grinding disc and the spiral grinding bracket, so as to control the fineness of grinding. When the grains to be ground are required to be finer, the amount of grain feeding is reduced to avoid grain accumulation, which affects the grinding effect of the grains. When the grains to be ground are required to be coarser, the amount of grain feeding is increased to improve the grinding efficiency of the grains. The specific content is as follows: 1. By setting up the grinding mechanism, not only can the grinding motor drive the grinding rotating rod to rotate, causing the grinding rotating rod to drive the first crushing roller and the rotating bevel gear to rotate horizontally. Utilizing the meshing connection between the rotating bevel gear and the meshing bevel gear ring, the meshing bevel gear ring drives the first crushing roller to rotate vertically. The first crushing knife on the outside of the first crushing roller crushes the grains by rolling, and at the same time, the first spring and the crushing knocking block are used to knock and crush the grains, breaking the grains into smaller particles. The grinding rotating rod drives the spiral grinding bracket to rotate, and the spiral grinding bracket rotates and rubs against the grinding disc, thereby grinding the grains. Utilizing the spiral characteristics of the spiral grinding bracket, the grains can be laid flat and ground, grinding the grains into the specified particle size. By reversing the grinding motor, the spiral grinding bracket moves the grains towards the central through-hole position of the grinding disc. The grains that meet the grinding requirements can pass through the through-hole, and the grains that do not pass through the through-hole can continue to be ground until the grinding requirements are met. By rotating the adjustment knob to drive the adjustment screw rod to rotate, the adjustment block slides inside the telescopic chute. By the adjustment block squeezing the grinding disc, the lifting movement of the grinding disc can be achieved, thereby increasing the distance between the through-hole at the central position of the grinding disc and the conical baffle, and at the same time adjusting the distance between the grinding disc and the spiral grinding bracket, thereby being able to control the fineness of the grinding. By setting up the anti-static ring and grounding the anti-static ring, the anti-static effect can be achieved, avoiding the friction and collision between dust particles and the equipment wall, pipeline, etc. during grinding, resulting in charge separation and thus generating static electricity. During the grinding of grains, due to the influence of static electricity, the ground grain powder adheres to the grinding disc, affecting the subsequent grinding effect; 2. By setting up the crushing and feeding mechanism, not only can the crushing motor drive the gear transmission assembly and the second crushing roller to rotate, and the primary crushing of the grains can be achieved through the third crushing knife. Through the elastic force of the second spring, the telescopic adjustment of the third crushing knife can be realized. When crushing harder grains, the third crushing knife can be protected to avoid damage. By the stirring motor driving the first rotating disc to rotate, the first rotating disc drives the stirring connecting rod and the second stirring disc to rotate. Utilizing the first rotating disc and the second stirring disc to drive the stirring bracket and the stirring scraper to rotate, the preliminarily mixed crushing grains can be achieved. By starting the opening and closing motor to drive the sprocket transmission assembly and the opening and closing bidirectional screw rod to rotate, the opening and closing thread sleeve drives the opening and closing baffle to move relatively. By controlling the size of the spacing when the opening and closing baffle expands, the amount of grain feeding can be controlled. When the grains to be ground are required to be finer, the amount of grain feeding is reduced to avoid grain accumulation and thus affecting the grinding effect of the grains. When the grains to be ground are required to be coarser, the amount of grain feeding is increased to improve the grinding efficiency of the grains. Description of the Drawings

[0013] Figure 1Schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 Schematic diagram of the cross-sectional three-dimensional structure of the grinding mechanism in the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the bottom support frame and the grinding motor in the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the rotating ring in the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the meshing bevel gear ring in the present invention; Figure 6 Schematic diagram of the cross-sectional three-dimensional structure of the first crushing roller in the present invention; Figure 7 Schematic diagram of the cross-sectional three-dimensional structure of the anti-static ring in the present invention; Figure 8 Schematic diagram of the cross-sectional three-dimensional structure of the crushing and discharging mechanism in the present invention; Figure 9 Schematic diagram of the cross-sectional three-dimensional structure of the second crushing roller in the present invention; Figure 10 Schematic diagram of the three-dimensional structure of the stirring support and the stirring scraper in the present invention; Figure 11 Schematic diagram of the three-dimensional structure of the opening and closing baffle in the present invention.

[0014] In the figure: 1. Grinding mechanism; 101. Grinding box; 102. Bottom support frame; 103. Grinding motor; 104. Grinding rotating rod; 105. Grinding rotating groove; 106. Spiral grinding support; 107. Anti-static ring; 108. Meshing bevel gear ring; 109. Rotating ring; 110. Rotating bevel gear; 111. First crushing roller; 112. First crushing knife; 113. First spring; 114. Crushing knocking block; 115. Rotating connecting shaft; 116. Telescopic chute; 117. Adjusting knob; 118. Adjusting threaded rod; 119. Adjusting block; 120. Grinding disc; 121. Connecting spring; 122. Connecting block; 123. Pouring ring; 124. Top support; 125. Feeding support; 126. Installation ring; 127. Support leg; 128. Conical block; 2. Crushing and discharging mechanism; 201. Crushing box; 202. Feeding plate; 203. Feeding hopper; 204. Crushing motor; 205. Gear transmission assembly; 206. Second crushing roller; 207. Second spring; 208. Third crushing knife; 209. Stirring box; 210. Stirring motor; 211. First rotating disc; 212. Stirring connecting rod; 213. Second stirring disc; 214. Stirring support; 215. Stirring scraper; 216. Discharging support; 217. Sprocket limit cover; 218. Opening and closing motor; 219. Sprocket transmission assembly; 220. Opening and closing bidirectional threaded rod; 221. Opening and closing threaded sleeve; 222. Opening and closing baffle. Detailed implementation manners

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 - 7, the present invention provides a technical solution: an adjustable grain grinding device, including a grinding mechanism 1 and a pouring ring 123 installed inside the grinding mechanism 1. A crushing and feeding mechanism 2 is arranged at the top of the grinding mechanism 1, and a feeding support 216 is arranged at the bottom of the crushing and feeding mechanism 2. The grinding mechanism 1 includes a grinding box 101. A bottom support frame 102 is fixedly installed on the inner side of the bottom of the grinding box 101, and a grinding motor 103 is fixedly installed at the center position of the bottom of the bottom support frame 102. Among them, the output end of the grinding motor 103 is fixedly connected to a grinding rotating rod 104. Grinding rotating grooves 105 are symmetrically arranged up and down around the outer side of the grinding rotating rod 104. Among them, spiral grinding brackets 106 are fixedly installed at the bottom of the grinding rotating rod 104 close to the grinding rotating grooves 105. A conical stop block 128 is fixedly installed at the bottom of the spiral grinding bracket 106. Anti-static rings 107 are fixedly installed on the upper and lower parts inside the grinding box 101. A meshing bevel gear ring 108 is fixedly installed on the top of the two anti-static rings 107. A rotating ring 109 is rotatably connected to the top of the meshing bevel gear ring 108. Rotating bevel gears 110 are rotatably connected to the inner circumferences of the rotating ring 109. The rotating bevel gears 110 are meshed with the meshing bevel gear ring 108. A first crushing roller 111 is fixedly installed inside the rotating bevel gear 110. First crushing knives 112 are fixedly installed on the outer side of the first crushing roller 111. A number of first springs 113 are fixedly installed inside the first crushing roller 111. A crushing knocking block 114 is fixedly installed at the end of the first spring 113. A rotating connection shaft 115 is fixedly installed on the side of the first crushing roller 111 away from the rotating bevel gear 110. The rotating connection shaft 115 is rotatably connected to the grinding rotating rod 104 through the grinding rotating groove 105. By driving the grinding rotating rod 104 to rotate with the grinding motor 103, the grinding rotating rod 104 drives the first crushing roller 111 and the rotating bevel gear 110 to rotate horizontally. By using the characteristic of meshing connection between the rotating bevel gear 110 and the meshing bevel gear ring 108, the meshing bevel gear ring 108 drives the first crushing roller 111 to rotate vertically. The first crushing knives 112 on the outer side of the first crushing roller 111 are used to roll and crush the grains. At the same time, the first springs 113 and the crushing knocking blocks 114 are used to knock and crush the grains, so that the grains are crushed into smaller particles. By driving the spiral grinding bracket 106 to rotate with the grinding rotating rod 104, and by rotating the spiral grinding bracket 106 and generating friction with the grinding disc 120, the grinding of the grains is carried out. By using the spiral characteristic of the spiral grinding bracket 106, the paving and grinding of the grains can be realized, and the grains are ground into specified particle sizes. By starting the grinding motor 103 in reverse, the spiral grinding bracket 106 moves the grains towards the central through groove position of the grinding disc 120. The grains that meet the grinding requirements can pass through the through groove, and the grains that do not pass through the through groove can continue to be ground until the grinding requirements are met.

[0017] Please refer to Figures 2 - 7, several telescopic sliding grooves 116 are formed inside the anti-static ring 107. An adjusting threaded rod 118 is threadedly connected to the outer side of the anti-static ring 107 near the telescopic sliding groove 116. An adjusting knob 117 is fixedly installed on the outer side of the adjusting threaded rod 118. One end of the adjusting threaded rod 118 away from the adjusting knob 117 is rotatably connected to an adjusting block 119. A grinding disc 120 is arranged on the top of the adjusting block 119. Several connecting springs 121 are fixedly installed on the bottom of the grinding disc 120. A connecting block 122 is fixedly installed on the bottom of the connecting spring 121. The connecting block 122 is fixedly installed on the inner side of the anti-static ring 107. The top of the grinding rotating rod 104 is rotatably connected to a top bracket 124. The top bracket 124 is fixedly installed inside the grinding box 101. A feeding bracket 125 is fixedly installed on the top of the grinding box 101. An installation ring 126 is fixedly installed on the outer side of the bottom of the grinding box 101. Support legs 127 are fixedly installed around the bottom of the installation ring 126. A through groove is formed at the central position inside the grinding disc 120. By rotating the adjusting knob 117 to drive the adjusting threaded rod 118 to rotate, the adjusting block 119 slides inside the telescopic sliding groove 116. By squeezing the grinding disc 120 with the adjusting block 119, the lifting movement of the grinding disc 120 can be realized, so as to increase the distance between the through groove at the central position of the grinding disc 120 and the conical stop block 128. At the same time, the distance between the grinding disc 120 and the spiral grinding bracket 106 is adjusted, so as to control the fineness of grinding. By setting the anti-static ring 107 and grounding the anti-static ring 107, the anti-static effect can be realized, avoiding the friction and collision between dust particles and the equipment wall, pipeline, etc. during grinding, resulting in charge separation and thus generating static electricity. When grinding grains, due to the influence of static electricity, the ground grain powder adheres to the grinding disc 120, thus affecting the subsequent grinding effect.

[0018] Please refer to Figure 1 , Figures 8 - 10, the crushing and feeding mechanism 2 includes a crushing box 201. Inside the top of the crushing box 201, guide plates 202 are symmetrically installed. At the top of the crushing box 201, a feeding hopper 203 is fixedly installed. On one side of the crushing box 201, a crushing motor 204 is fixedly installed. The output end of the crushing motor 204 is fixedly connected to a gear transmission assembly 205. On one side of the gear transmission assembly 205, second crushing rollers 206 are symmetrically installed. Inside the second crushing rollers 206, a number of second springs 207 are fixedly installed. At the end of the second springs 207, third crushing knives 208 are fixedly installed. At the bottom of the crushing box 201, a mixing box 209 is fixedly installed. On one side of the mixing box 209, a mixing motor 210 is fixedly installed. The output end of the mixing motor 210 is fixedly connected to a first rotating disk 211. On one side of the first rotating disk 211, a number of mixing connecting rods 212 are fixedly installed. The end of the mixing connecting rod 212 far from the first rotating disk 211 is fixedly installed with a second mixing disk 213. Both the first rotating disk 211 and the second mixing disk 213 are rotationally connected to the mixing box 209. Between the first rotating disk 211 and the second mixing disk 213, a number of mixing brackets 214 are fixedly installed. On the outside of the mixing brackets 214, mixing scraping plates 215 are fixedly installed. A feeding bracket 216 is fixedly installed at the bottom of the mixing box 209. By driving the gear transmission assembly 205 and the second crushing rollers 206 to rotate with the crushing motor 204, the primary crushing of grains can be achieved through the third crushing knives 208. Through the elastic force of the second springs 207, the telescopic adjustment of the third crushing knives 208 can be realized. When crushing harder grains, the third crushing knives 208 can be protected to avoid damage. By driving the first rotating disk 211 to rotate with the mixing motor 210, the first rotating disk 211 drives the mixing connecting rods 212 and the second mixing disk 213 to rotate. By driving the mixing brackets 214 and the mixing scraping plates 215 to rotate with the first rotating disk 211 and the second mixing disk 213, the preliminarily mixed grains after crushing can be obtained.

[0019] Please refer to Figures 8 - 11, The blanking support 216 is fixedly installed on the top of the material guiding support 125. One side of the blanking support 216 is fixedly installed with a sprocket limit cover 217. One side inside the sprocket limit cover 217 is fixedly installed with an opening and closing motor 218. The output end of the opening and closing motor 218 is fixedly connected with a sprocket transmission assembly 219. One side of the sprocket transmission assembly 219 is symmetrically installed with an opening and closing bidirectional threaded rod 220. The outer sides of the two opening and closing bidirectional threaded rods 220 are symmetrically threadedly connected with opening and closing threaded sleeves 221. The tops of the two opening and closing threaded sleeves 221 are fixedly installed with an opening and closing baffle 222. The opening and closing baffle 222 is slidably connected with the blanking support 216. By starting the opening and closing motor 218 to drive the sprocket transmission assembly 219 and the opening and closing bidirectional threaded rod 220 to rotate, the opening and closing threaded sleeve 221 drives the opening and closing baffle 222 to move relatively. By controlling the size of the spacing at which the opening and closing baffle 222 expands, the amount of grain blanking is controlled. When the grain to be ground is required to be finer, the amount of grain blanking is reduced to avoid grain accumulation, which affects the grain grinding effect. When the grain to be ground is required to be coarser, the amount of grain blanking is increased to improve the grain grinding efficiency.

[0020] Working principle: Before using this adjustable grain grinding device, it is necessary to first check the overall condition of the device to ensure that it can work properly. According to Figure 1 - Figure 11 As shown, first, the crushing motor 204 drives the gear transmission assembly 205 and the second crushing roller 206 to rotate. The primary crushing of the grain can be achieved through the third crushing knife 208. Through the elastic force of the second spring 207, the telescopic adjustment of the third crushing knife 208 can be realized. When crushing harder grains, the third crushing knife 208 can be protected to avoid damage to the third crushing knife 208. The stirring motor 210 drives the first rotating disk 211 to rotate, so that the first rotating disk 211 drives the stirring connecting rod 212 and the second stirring disk 213 to rotate. The stirring support 214 and the stirring scraper 215 are driven by the first rotating disk 211 and the second stirring disk 213 to rotate, and the crushed grains can be preliminarily mixed. By starting the opening and closing motor 218 to drive the sprocket transmission assembly 219 and the opening and closing bidirectional threaded rod 220 to rotate, the opening and closing threaded sleeve 221 drives the opening and closing baffle 222 to move relatively. By controlling the size of the spacing at which the opening and closing baffle 222 expands, the amount of grain blanking is controlled. When the grain to be ground is required to be finer, the amount of grain blanking is reduced to avoid grain accumulation, which affects the grain grinding effect. When the grain to be ground is required to be coarser, the amount of grain blanking is increased to improve the grain grinding efficiency.

[0021] Secondly, drive the grinding rotating rod 104 to rotate by the grinding motor 103, so that the grinding rotating rod 104 drives the first crushing roller 111 and the rotating bevel gear 110 to rotate horizontally. Utilize the meshing connection between the rotating bevel gear 110 and the meshing bevel gear ring 108 to make the meshing bevel gear ring 108 drive the first crushing roller 111 to rotate vertically. Crush the grains by rolling them with the first crushing knives 112 on the outer side of the first crushing roller 111. At the same time, use the first spring 113 and the crushing knocking block 114 to knock and crush the grains, so that the grains are crushed into smaller particles. Drive the spiral grinding bracket 106 to rotate by the grinding rotating rod 104. Rotate the spiral grinding bracket 106 and generate friction with the grinding disc 120 to grind the grains. Utilize the spiral feature of the spiral grinding bracket 106 to achieve the spreading and grinding of the grains, and grind the grains into the specified particle size. Reverse-start the grinding motor 103 to make the spiral grinding bracket 106 move the grains towards the central through slot position of the grinding disc 120. The grains that meet the grinding requirements can pass through the through slot, and the grains that do not pass through the through slot can continue to be ground until the grinding requirements are met.

[0022] Finally, drive the adjusting screw rod 118 to rotate by rotating the adjusting knob 117, so that the adjusting block 119 slides inside the telescopic chute 116. Squeeze the grinding disc 120 by the adjusting block 119 to achieve the lifting movement of the grinding disc 120, thereby increasing the distance between the through slot at the central position of the grinding disc 120 and the conical baffle 128, and at the same time adjusting the distance between the grinding disc 120 and the spiral grinding bracket 106, so as to control the fineness of grinding. Set the anti-static ring 107 and ground the anti-static ring 107 to achieve the anti-static effect, and avoid the friction and collision between dust particles and the equipment wall, pipeline, etc. during grinding, resulting in charge separation and thus generating static electricity. During the grinding of grains, due to the influence of static electricity, the ground grain powder adheres to the grinding disc 120, thus affecting the subsequent grinding effect.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable grain grinding device, comprising a grinding mechanism (1) and a blanking ring (123) installed inside the grinding mechanism (1); A crushing and blanking mechanism (2) is arranged at the top of the grinding mechanism (1), and a blanking support (216) is arranged at the bottom of the crushing and blanking mechanism (2); It is characterized in that It further includes: The grinding mechanism (1) includes a grinding box (101), a bottom support frame (102) is fixedly installed on the inner side of the bottom of the grinding box (101), and a grinding motor (103) is fixedly installed at the center of the bottom of the bottom support frame (102); Wherein, the output end of the grinding motor (103) is fixedly connected with a grinding rotating rod (104), and grinding rotating grooves (105) are symmetrically arranged up and down around the outer side of the grinding rotating rod (104); Wherein, spiral grinding support frames (106) are fixedly installed at the bottoms of the grinding rotating rod (104) close to the grinding rotating grooves (105), and a conical stop block (128) is fixedly installed at the bottom of the spiral grinding support frame (106); Anti-static rings (107) are fixedly installed at the top and bottom inside the grinding box (101), a meshing bevel gear ring (108) is fixedly installed at the top of the two anti-static rings (107), a rotating ring (109) is rotatably connected to the top of the meshing bevel gear ring (108), rotating bevel gears (110) are rotatably connected to the inner circumferences of the rotating ring (109), the rotating bevel gears (110) are meshed with the meshing bevel gear ring (108), and a first crushing roller (111) is fixedly installed inside the rotating bevel gears (110); A first crushing knife (112) is fixedly installed on the outer side of the first crushing roller (111), a number of first springs (113) are fixedly installed inside the first crushing roller (111), a crushing knocking block (114) is fixedly installed at the end of the first spring (113), a rotating connecting shaft (115) is fixedly installed on the side of the first crushing roller (111) away from the rotating bevel gear (110), and the rotating connecting shaft (115) is rotatably connected with the grinding rotating rod (104) through the grinding rotating groove (105); A number of telescopic sliding grooves (116) are formed inside the anti-static ring (107), an adjusting threaded rod (118) is threadedly connected to the outer side of the anti-static ring (107) close to the telescopic sliding groove (116), an adjusting knob (117) is fixedly installed on the outer side of the adjusting threaded rod (118), an adjusting block (119) is rotatably connected to the end of the adjusting threaded rod (118) away from the adjusting knob (117), a grinding disc (120) is arranged at the top of the adjusting block (119), a number of connecting springs (121) are fixedly installed at the bottom of the grinding disc (120), a connecting block (122) is fixedly installed at the bottom of the connecting spring (121), and the connecting block (122) is fixedly installed on the inner side of the anti-static ring (107).

2. The adjustable grain grinding device according to claim 1, characterized in that: The top of the grinding rotating rod (104) is rotatably connected to a top bracket (124), the top bracket (124) is fixedly installed inside the grinding box (101), a feeding bracket (125) is fixedly installed on the top of the grinding box (101), an installation ring (126) is fixedly installed on the outer side of the bottom of the grinding box (101), support legs (127) are fixedly installed around the bottom of the installation ring (126), and a through groove is formed at the central position inside the grinding disc (120).

3. The adjustable cereal grinding device according to claim 2, wherein: The crushing and feeding mechanism (2) includes a crushing box (201), guide plates (202) are symmetrically installed on the inner side of the top of the crushing box (201), a feeding hopper (203) is fixedly installed on the top of the crushing box (201), a crushing motor (204) is fixedly installed on one side of the crushing box (201), the output end of the crushing motor (204) is fixedly connected to a gear transmission assembly (205), and second crushing rollers (206) are symmetrically installed on one side of the gear transmission assembly (205).

4. The adjustable cereal grinding device according to claim 3, characterized in that: A number of second springs (207) are fixedly installed inside the second crushing roller (206), the ends of the second springs (207) are fixedly installed with third crushing knives (208), a stirring box (209) is fixedly installed at the bottom of the crushing box (201), a stirring motor (210) is fixedly installed on one side of the stirring box (209), the output end of the stirring motor (210) is fixedly connected to a first rotating disc (211), and a number of stirring connecting rods (212) are fixedly installed on one side of the first rotating disc (211).

5. The adjustable cereal grinding device according to claim 4, wherein: One end of the stirring connecting rod (212) far from the first rotating disc (211) is fixedly installed with a second stirring disc (213), both the first rotating disc (211) and the second stirring disc (213) are rotatably connected to the stirring box (209), a number of stirring brackets (214) are fixedly installed between the first rotating disc (211) and the second stirring disc (213), and stirring scraping plates (215) are fixedly installed on the outer sides of the stirring brackets (214).

6. The adjustable cereal grinding device according to claim 5, characterized in that: A feeding bracket (216) is fixedly installed at the bottom of the stirring box (209), the feeding bracket (216) is fixedly installed on the top of the feeding bracket (125), a sprocket limiting cover (217) is fixedly installed on one side of the feeding bracket (216), an opening and closing motor (218) is fixedly installed on one side inside the sprocket limiting cover (217), the output end of the opening and closing motor (218) is fixedly connected to a sprocket transmission assembly (219), opening and closing bidirectional threaded rods (220) are symmetrically installed on one side of the sprocket transmission assembly (219), opening and closing threaded sleeves (221) are symmetrically threaded on the outer sides of the two opening and closing bidirectional threaded rods (220), an opening and closing baffle (222) is fixedly installed on the top of the two opening and closing threaded sleeves (221), and the opening and closing baffle (222) is slidably connected to the feeding bracket (216).

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