Double-roller type corn crusher

Abstract

The invention relates to the technical field of crushers, in particular to a double-roller type corn crusher. The pulverizer comprises a feeding mechanism, a pulverizing mechanism, a refining, drying and screening mechanism and a discharging mechanism, the feeding mechanism is fixedly arranged above the pulverizing mechanism, the refining, drying and screening mechanism is fixedly arranged below the pulverizing mechanism, the discharging mechanism is fixedly arranged below the refining, drying and screening mechanism, the pulverizing mechanism comprises two sets of auxiliary roller assemblies which are symmetrically arranged, and the two sets of auxiliary roller assemblies are symmetrically arranged. The two sets of symmetrically-arranged auxiliary roller assemblies are arranged in the smashing mechanism, the refining, drying and screening mechanism comprises a refining layer and a drying layer, the refining layer is movably connected with the drying layer, the refining layer is arranged above the drying layer, and the discharging mechanism is fixedly arranged below the drying layer and communicates with the drying layer. Through cooperation of the two sets of large auxiliary rollers and the small auxiliary rollers at the bottom, twice crushing of corn particles is achieved, attachment of wet corn to the surfaces of the rollers is effectively reduced, the blocking risk is reduced, and the continuity and stability of crushing operation are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of grinders, and more particularly to a double-roller corn grinder. Background Art

[0002] The double-roller corn grinder is a device widely used in corn processing. It primarily consists of two counter-rotating rollers, typically with a toothed or patterned surface. During operation, corn enters the feed inlet and passes through the gap between the two rollers, where it is crushed by a combination of squeezing, shearing, and grinding, ultimately forming uniform granules or powder that is discharged through the discharge port. This device offers advantages such as a simple structure, low manufacturing cost, and easy operation. It also provides excellent pulverization, meeting user requirements for refined material particle size. Consequently, it is widely used in feed processing, the food industry, and other fields.

[0003] However, the existing double-roller corn grinder still has certain limitations in practical applications. First, its adaptability to materials is relatively narrow, and it is mainly suitable for brittle and dry corn. For corn materials with high humidity or strong viscosity, the crushing effect is significantly reduced, and it may even cause equipment blockage, affecting production efficiency. Secondly, during the crushing process, the roller surface is in direct contact with the corn, generating large friction and impact force, which makes it easy for fine particles of impurities to adhere to the gaps in the roller surface. Long-term use will accelerate the wear of metal components, increase equipment maintenance costs and downtime. These problems not only reduce the working efficiency of the equipment, but also affect the quality of the processed materials, limiting the further promotion and application of the equipment.

[0004] Therefore, how to improve the adaptability of the roller corn grinder to high-humidity and high-viscosity corn while reducing roller surface wear and maintenance requirements has become a technical problem that needs to be urgently solved in this field. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one aspect of the present invention is to provide a double-roller corn crusher, which includes a feeding mechanism, a crushing mechanism, a refining drying and screening mechanism, and a discharging mechanism. The feeding mechanism is fixedly arranged above the crushing mechanism, the refining drying and screening mechanism is fixedly arranged below the crushing mechanism, and the discharging mechanism is fixedly arranged below the refining drying and screening mechanism. The crushing mechanism includes two groups of symmetrically arranged auxiliary roller assemblies, and the two groups of symmetrically arranged auxiliary roller assemblies are arranged in the crushing mechanism. The two groups of auxiliary roller assemblies respectively include a large auxiliary roller and a small auxiliary roller, and a number of crushing teeth are arranged on the outside of the large auxiliary roller and the small auxiliary roller. The refining drying and screening mechanism includes a refining layer and a drying layer, and the refining layer and the drying layer are movably connected. The refining layer is arranged above the drying layer, and the discharging mechanism is fixedly arranged below the drying layer. The discharging mechanism is connected to the drying layer.

[0006] Preferably, the feeding mechanism is funnel-shaped.

[0007] Preferably, the crushing mechanism also includes a steel brush, which is fixedly arranged in the crushing mechanism. There are two groups of steel brushes respectively arranged above two groups of symmetrically arranged auxiliary roller assemblies. The steel brushes are horizontally positioned with the auxiliary roller assemblies and the steel brushes are in direct contact with the large auxiliary roller.

[0008] Preferably, the crushing mechanism also includes a rotating motor, a first transmission belt, a second transmission belt and a third transmission belt, the rotating motor is provided with a linkage roller shaft, the large auxiliary roller is provided with a large roller shaft, the small auxiliary roller is provided with a small roller shaft, the large roller shaft and the small roller shaft are connected by a first transmission belt, the group of large roller shafts and the linkage roller shaft are connected by a second transmission belt, and the two groups of large roller shafts are connected by a third transmission belt.

[0009] Preferably, the refinement layer includes a first screen, a slide rod and a slide brush, the first screen is horizontally arranged in the refinement layer, the slide rod is horizontally arranged on the first screen, the slide brush is slidably arranged on the slide rod, the drying layer includes a third screen and a dryer, the third screen is arranged at the bottom of the drying layer, the dryer is arranged outside the drying layer, the dryer includes an air supply pipe, and the dryer is connected to the drying layer through the air supply pipe.

[0010] Preferably, the refinement layer includes a supporting bottom plate, a first buffer and a second screen, the second screen is arranged at the bottom of the refinement layer, the drying layer includes a supporting top plate, the supporting bottom plate is arranged around the bottom of the refinement layer, the supporting top plate is arranged around the top of the drying layer, and the supporting bottom plate and the supporting top plate are movably connected through the first buffer.

[0011] Preferably, the pulverizer further comprises a support base, which is arranged below the refining, drying and screening mechanism, and the discharging mechanism extends out from the center of the support base.

[0012] Preferably, the support base includes a vibration mechanism, the upper portion of the vibration mechanism is fixedly connected to the drying layer, and the lower portion of the vibration mechanism is fixedly connected to the support base.

[0013] Preferably, the support base includes a second buffer member, the upper portion of the second buffer member is fixedly connected to the drying layer, and the lower portion of the second buffer member is fixedly connected to the support base.

[0014] Preferably, the discharging mechanism includes a discharging port and a discharging hopper, the discharging port is communicated with the bottom of the drying layer, and the discharging hopper is a hopper with a slope.

[0015] The beneficial effects of the present invention are as follows: Highly efficient anti-clogging: Through the cooperation of two sets of large auxiliary rollers and the small auxiliary roller at the bottom, the corn particles are crushed twice, effectively reducing the adhesion of wet corn on the roller surface, reducing the risk of clogging, and ensuring the continuity and stability of the crushing operation.

[0016] Improve the fineness of crushing: Use a steel brush to clean the surface of the large auxiliary roller, brush off the incompletely crushed particles and make them fall into the small auxiliary roller for secondary crushing. This not only improves the uniformity and fineness of crushing, but also reduces the frequency of manual cleaning and reduces maintenance costs.

[0017] Self-cleaning and easy maintenance: The steel brush design enables the device to automatically clean the roller surface during operation. At the same time, with the water flushing function, the internal structure can be cleaned without complete disassembly, which significantly improves the practicality and maintenance convenience of the device.

[0018] Optimized wet particle handling: The vibrating screening layer combined with the dryer's hot air dehumidification function effectively reduces the adhesion of wet corn particles to the screen plate. At the same time, hot air evaporation can also reduce the accumulation of sticky particles on the roller assembly, further enhancing the device's anti-clogging ability and crushing efficiency.

[0019] Energy saving and environmental protection: The recycling of hot air not only improves energy utilization, but also reduces the residue problem in the wet corn crushing process, making the overall operation more environmentally friendly and efficient.

[0020] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 It is a structural schematic diagram of the double-roller corn grinder of the present invention; Figure 2 1 is a cross-sectional schematic diagram of a double-roller corn grinder of the present invention; Figure 3 This is a schematic structural diagram of the auxiliary roller assembly of the double-roller corn grinder of the present invention; Figure 4 This is a schematic structural diagram of the material refining, drying and screening mechanism of the double-roller corn grinder of the present invention; Figure 5 This is a schematic structural diagram of the material refining, drying and screening mechanism of the double-roller corn grinder of the present invention; Figure 6 This is a schematic diagram of the discharge mechanism structure of the double-roller corn grinder of the present invention; The corresponding relationship between the reference numerals and component names in the figure is as follows: 1 is the feeding mechanism, 2 is the crushing mechanism, 21 is the auxiliary roller assembly, 211 is the large auxiliary roller, 212 is the small auxiliary roller, 213 is the crushing tooth, 214 is the large roller shaft, 215 is the small roller shaft, 22 is the steel brush, 23 is the rotating motor, 231 is the linkage roller shaft, 24 is the first transmission belt, 25 is the second transmission belt, 26 is the third transmission belt, 3 is the refining drying and screening mechanism, 31 is the refining layer, 311 is the first screen, 312 is the sliding rod, 313 is the sliding brush, 314 is the supporting bottom plate, 315 is the first buffer, 316 is the second screen, 32 is the drying layer, 321 is the third screen, 322 is the dryer, 323 is the air supply pipe, 324 is the supporting top plate, 4 is the discharging mechanism, 41 is the discharging port, 42 is the discharging hopper, 5 is the supporting base, 51 is the vibration mechanism, and 52 is the second buffer. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] The double-roller corn grinder of the present invention includes a feeding mechanism 1, a grinding mechanism 2, two groups of auxiliary roller assemblies 21, a large auxiliary roller 211, a small auxiliary roller 212, grinding teeth 213, a large roller shaft 214, a small roller shaft 215, a steel brush 22, a rotating motor 23, a linkage roller shaft 231, a first transmission belt 24, a second transmission belt 25, a third transmission belt 26, a refining, drying and screening mechanism 3, a refining layer 31, a first screen 311, a sliding rod 312, a sliding brush 313, a supporting bottom plate 314, a first buffer 315, a second screen 316, a drying layer 32, a third screen 321, a dryer 322, an air supply pipe 323, a supporting top plate 324, a discharging mechanism 4, a discharging port 41, a discharging hopper 42, a supporting base 5, a vibration mechanism 51 and a second buffer 52.

[0025] like Figure 12, the feeding mechanism 1 is funnel-shaped and fixedly arranged above the crushing mechanism 2, the refining drying and screening mechanism 3 is fixedly installed below the crushing mechanism 2, and the discharging mechanism 4 is fixedly arranged below the refining drying and screening mechanism 3. Two groups of symmetrically arranged auxiliary roller assemblies 21 are arranged in the crushing mechanism 2, and a number of crushing teeth 213 are arranged outside the large auxiliary roller 211 and the small auxiliary roller 212. The refining layer 31 and the drying layer 32 are movably connected. The refining layer 31 is arranged above the drying layer 32, and the discharging mechanism 4 is fixedly arranged below the drying layer 32. The discharging mechanism 4 is connected to the drying layer 32, and the discharge port 41 is connected to the bottom of the drying layer 32. The discharge hopper 42 is a hopper with a slope.

[0026] like Figure 2 As shown in FIG3 , the steel brush 22 is fixedly arranged in the pulverizing mechanism 2. There are two groups of steel brushes 22 respectively arranged above two groups of symmetrically arranged auxiliary roller assemblies 21. The steel brushes 22 and the auxiliary roller assemblies 21 are horizontally positioned and the steel brushes 22 are in direct contact with the large auxiliary roller 211. The large roller member 214 and the small roller member 215 are connected by a first transmission belt 24. A group of large roller members 214 and the linkage roller member 231 are connected by a second transmission belt 25. The two groups of large roller members 214 are connected by a third transmission belt 26.

[0027] like Figure 4 、 5 As shown, the first screen 311 is horizontally arranged in the refinement layer 31, the slide rod 312 is horizontally arranged on the first screen 311, the sliding brush 313 is slidably arranged on the slide rod 312, the second screen 316 is arranged at the bottom of the refinement layer 31, the third screen 321 is arranged at the bottom of the drying layer 32, the dryer 322 is arranged outside the drying layer 32, and the dryer 322 is connected to the drying layer 32 through the air supply pipe 323. The support bottom plate 314 is arranged around the bottom of the refinement layer 31, and the support top plate 324 is arranged around the top of the drying layer 32. The support bottom plate 314 and the support top plate 324 are movably connected through the first buffer member 315.

[0028] like Figure 6 As shown, the support base 5 is arranged below the refining drying and screening mechanism 3, the discharging mechanism 4 passes through the center of the support base 5, the top of the vibration mechanism 51 is fixedly connected to the drying layer 32, the bottom of the vibration mechanism 51 is fixedly connected to the support base 5, the top of the second buffer 52 is fixedly connected to the drying layer 32, and the bottom of the second buffer 52 is fixedly connected to the support base 5.

[0029] During use, corn particles enter the crushing mechanism 2 through the feeding mechanism 1 at the top of the device. Two sets of auxiliary roller assemblies 21 and steel brushes 22 are provided in the crushing mechanism 2. The rotating motor 23 is turned on to make the linkage roller shaft 231 drive the second transmission belt 25 to rotate. The second transmission belt 25 drives the large roller shaft 214 to rotate. The large roller shaft 214 drives the first transmission belt 24 and the third transmission belt 26 to rotate. The first transmission belt 24 drives the large auxiliary roller 211 and the small auxiliary roller 212 to rotate relative to each other. The third transmission belt 26 drives the two sets of large auxiliary rollers 211 to rotate relative to each other. When the large auxiliary roller 211 rotates, the steel brush 22 sweeps across the crushing teeth 213. During the rotation and crushing process of the large auxiliary roller 211, corn crumbs will adhere to the surface and then be crushed again by the small auxiliary roller 212 at the bottom. This can reduce the adhesion of wet corn to the roller surface, thereby improving the overall anti-clogging effect of the device.

[0030] The crushed corn falls into the fine drying screening mechanism 3, and first falls on the first screen 311. The sliding brush 313 on the sliding slide rod 312 prevents the wet corn particles from agglomerating. The corn particles screened for the first time fall on the second screen 316 for rescreening, thereby improving the overall crushing refinement of the device. The corn particles screened for the second time fall on the third screen 321. The dryer 322 blows hot air into the drying layer 32 through the air supply pipe 323 for drying. The particle size of the dried corn particles becomes smaller. The corn particles that are not completely crushed in the drying layer 32 need to be crushed again. The wet particles will stick to the third screen 321 and pass through the conveyor belt. The hot air delivered is dehumidified, and part of the hot air can also evaporate upward, which can also reduce the sticky particles attached to the roller crushing assembly to a certain extent, thereby improving the actual use effect of the entire device. The vibration mechanism 51 vibrates the support top plate 324 to perform a third screening (the support bottom plate 314 buffers the vibration impact of the vibration mechanism 51 on the support bottom plate 314 through the first buffer member 315, and the second buffer member 52 is supported between the drying layer 32 and the support base 5 to prevent the drying layer 32 from tilting when the vibration mechanism 51 vibrates). The corn crumbs after the third screening fall from the discharge port 41 and slide out of the discharge hopper 42.

[0031] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-roller corn grinder, characterized by: The pulverizer comprises a feeding mechanism (1), a pulverizing mechanism (2), a fine drying and screening mechanism (3) and a discharging mechanism (4), wherein the feeding mechanism (1) is fixedly arranged above the pulverizing mechanism (2), the fine drying and screening mechanism (3) is fixedly arranged below the pulverizing mechanism (2), and the discharging mechanism (4) is fixedly arranged below the fine drying and screening mechanism (3). The pulverizing mechanism (2) comprises two sets of symmetrically arranged auxiliary roller assemblies (21), the two sets of symmetrically arranged auxiliary roller assemblies (21) are arranged in the pulverizing mechanism (2), and the two sets of auxiliary roller assemblies (21) are arranged in the pulverizing mechanism (2). The component (21) includes a large auxiliary roller (211) and a small auxiliary roller (212), and a plurality of crushing teeth (213) are provided outside the large auxiliary roller (211) and the small auxiliary roller (212). The refining and drying screening mechanism (3) includes a refining layer (31) and a drying layer (32). The refining layer (31) and the drying layer (32) are movably connected. The refining layer (31) is provided above the drying layer (32). The discharging mechanism (4) is fixedly provided below the drying layer (32), and the discharging mechanism (4) is communicated with the drying layer (32).

2. The double-roller corn grinder according to claim 1, characterized in that: The feeding mechanism (1) is funnel-shaped.

3. The double-roller corn grinder according to claim 1, characterized in that: The pulverizing mechanism (2) further comprises a steel brush (22), wherein the steel brush (22) is fixedly arranged in the pulverizing mechanism (2), and two groups of the steel brushes (22) are respectively arranged above two groups of symmetrically arranged auxiliary roller assemblies (21), wherein the steel brushes (22) and the auxiliary roller assemblies (21) are positioned horizontally, and the steel brushes (22) are in direct contact with the large auxiliary roller (211).

4. The double-roller corn grinder according to claim 1, characterized in that: The pulverizing mechanism (2) further comprises a rotating motor (23), a first transmission belt (24), a second transmission belt (25) and a third transmission belt (26); the rotating motor (23) is provided with a linkage roller member (231); the large auxiliary roller (211) is provided with a large roller member (214); the small auxiliary roller (212) is provided with a small roller member (215); the large roller member (214) and the small roller member (215) are connected via the first transmission belt (24); the group of large roller members (214) and the linkage roller member (231) are connected via the second transmission belt (25); and the two groups of large roller members (214) are connected via the third transmission belt (26).

5. The double-roller corn grinder according to claim 1, characterized in that: The refinement layer (31) includes a first screen (311), a slide rod (312) and a slide brush (313), wherein the first screen (311) is horizontally arranged in the refinement layer (31), the slide rod (312) is horizontally arranged on the first screen (311), and the slide brush (313) is slidably arranged on the slide rod (312). The drying layer (32) includes a third screen (321) and a dryer (322), wherein the third screen (321) is arranged at the bottom of the drying layer (32), and the dryer (322) is arranged outside the drying layer (32). The dryer (322) includes an air supply pipe (323), and the dryer (322) is connected to the drying layer (32) through the air supply pipe (323).

6. The double-roller corn grinder according to claim 5, characterized in that: The refinement layer (31) includes a supporting bottom plate (314), a first buffer member (315) and a second screen (316), wherein the second screen (316) is arranged at the bottom of the refinement layer (31). The drying layer (32) includes a supporting top plate (324), wherein the supporting bottom plate (314) is arranged around the bottom of the refinement layer (31), and the supporting top plate (324) is arranged around the top of the drying layer (32). The supporting bottom plate (314) and the supporting top plate (324) are movably linked via the first buffer member (315).

7. The double-roller corn grinder according to claim 1, characterized in that: The pulverizer further comprises a support base (5), wherein the support base (5) is arranged below the refining, drying and screening mechanism (3), and the discharging mechanism (4) extends out from the center of the support base (5).

8. The double-roller corn grinder according to claim 7, characterized in that: The support base (5) comprises a vibration mechanism (51), wherein the upper portion of the vibration mechanism (51) is fixedly connected to the drying layer (32), and the lower portion of the vibration mechanism (51) is fixedly connected to the support base (5).

9. The double-roller corn grinder according to claim 7, characterized in that: The support base (5) comprises a second buffer member (52), the upper portion of the second buffer member (52) is fixedly connected to the drying layer (32), and the lower portion of the second buffer member (52) is fixedly connected to the support base (5).

10. The double-roller corn grinder according to claim 1, characterized in that: The discharging mechanism (4) comprises a discharging port (41) and a discharging hopper (42), wherein the discharging port (41) is communicated with the bottom of the drying layer (32), and the discharging hopper (42) is a hopper with a slope.

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