Automatic raw material crushing device and crushing method and application of automatic raw material crushing device and crushing method in textured protein

Abstract

The invention relates to the technical field of automatic raw material smashing devices, and discloses an automatic raw material smashing device, a smashing method and application of the automatic raw material smashing device in wiredrawing proteina.The automatic raw material smashing device comprises a crushing assembly and a dust removal assembly, a crushing roller is transversely assembled in a crushing box, and a motor is fixedly assembled at the left end of the crushing roller; the dust removal assembly comprises a driving shaft fixed to the right end of the crushing roller, the right end of the driving shaft extends out of the crushing box and is fixedly provided with a negative pressure fan, the crushing roller rotates to drive the crushing teeth and the smashing teeth to conduct extrusion crushing treatment on materials, and the dust removal assembly is used for removing dust in the crushing box. The crushing roller drives the negative pressure fan to rotate through the driving shaft, dust generated during raw material crushing in the crushing box can be sucked into the crushing roller under the negative pressure effect of the dust removal holes, air in the crushing roller is promoted to be sprayed out of the protective cover through the air guide channel and the air guide opening, and dust removal protection during raw material crushing is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic raw material crushing devices, and in particular to an automatic raw material crushing device, a crushing method and application in drawing protein. Background Art

[0002] Soy protein is a protein product rich in high protein and with muscle fiber structure, which is produced with low-temperature edible soybean meal, soy protein isolate and gluten powder as the main raw materials, using advanced technology and equipment under fully automated operation and control. Soy protein has an excellent structure and the organization of real meat fibers, which is very suitable for the processing of various high-grade vegetarian imitation meat foods. The product itself also has good water absorption and oil retention. After proper processing, it is an ideal high-protein meat product additive.

[0003] However, in the production process of soy protein, since soy protein isolate and gluten meal are finished powdered raw materials with a mesh size of more than 100, they do not need to be ground again, while low-temperature edible soybean meal needs to be crushed and ground. However, the existing raw material crushing device can only crush large particles, so it cannot ensure that the material has a finer and more uniform particle size after crushing. This is an inherent disadvantage of the crushing device, and a grinding device must be equipped for further grinding to meet the use standards.

[0004] In a soybean protein drawing raw material crushing equipment with application number CN201620143047.8, the crusher is improved to a partition distance of four evenly distributed baffles, which eliminates the noise at the start of work and reduces the impact on the tool; in a soybean protein drawing raw material crushing negative pressure conveying device with application number CN202021293060.4, the low-temperature edible soybean meal is crushed more finely by cross-distributed tooth rollers and teeth, and the transmission motor, the first pulley, the second pulley, the transmission rod, the first bevel gear and the second bevel gear can grind the crushed low-temperature edible soybean meal particles, and then grind them after crushing.

[0005] At present, the existing crushing devices on the market have fixed blade positions when crushing materials, and crush the materials through high-speed rotation. Since low-temperature edible soybean meal is mostly granular, splashing is prone to occur during the crushing process of low-temperature edible soybean meal, making the sizes of the crushed low-temperature edible soybean meal different, and it is difficult to directly process the low-temperature edible soybean meal into soy products after crushing. At the same time, when the material rotates at high speed, the large particles after crushing naturally fall to the bottom of the crushing chamber, which makes it impossible for this part of the material to be turned over, and then the blade can no longer continue to crush, and it is easy to have a stratification situation where the particle size gradually increases from top to bottom, the crushing effect is poor, and the uneven particle size seriously affects the subsequent material grinding progress and efficiency.

[0006] Therefore, the present invention solves the above-mentioned problems through a raw material automatic crushing device and a crushing method. Summary of the invention

[0007] The purpose of the present invention is to provide a raw material automatic crushing device, a crushing method and application in drawing protein to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: an automatic raw material crushing device, comprising a crushing component and a dust removal component, specifically: The crushing assembly comprises a crushing box, a crushing roller is transversely mounted inside the crushing box, and a motor is fixedly mounted on the left end of the crushing roller, a plurality of groups of crushing tooth groups are integrally formed on the outer wall of the crushing roller along the circumferential direction, and each group of crushing tooth groups has a plurality of groups of crushing teeth linearly arranged along the length direction of the crushing roller, and a plurality of groups of first arc blocks and second arc blocks integrally formed on the outer wall of the crushing roller are arranged between two adjacent groups of crushing tooth groups, the first arc blocks and the second arc blocks have the same arc, each group of the first arc blocks and the second arc blocks are staggered, and a single group of the first arc blocks and the second arc blocks are distributed on a clockwise arc line; The dust removal assembly includes a driving shaft fixed to the right end of the crushing roller, the right end of the driving shaft extends out of the crushing box and is fixedly equipped with a negative pressure fan, and a hollow air guide channel is opened inside the driving shaft, and an air guide port connected to the air guide channel is opened on the driving shaft extending out of the crushing box, and the left end of the driving shaft extends into the crushing roller, and the crushing roller is provided with a dust removal hole connected to its inner cavity.

[0009] Preferably, the crushing assembly also includes a feed hopper fixed on the left side of the top of the crushing box and a lower hopper fixed on the right side of the bottom of the crushing box. The length of the crushing roller is adapted to the length of the inner cavity of the crushing box. A protective cover arranged on the outside of the negative pressure fan is fixed on the right side wall of the crushing box.

[0010] Preferably, a crushing assembly is also included, and the crushing assembly includes a crushing tooth group distributed along the circumferential direction of the inner wall of the crushing box, and each group of crushing tooth groups matches the crushing tooth group, each group of crushing tooth groups includes crushing teeth linearly arranged along the length direction of the crushing box, and the crushing teeth and the crushing teeth are staggered.

[0011] Preferably, a crushing channel is set between two adjacent groups of crushing teeth, the number of the first arc blocks, the second arc blocks and the crushing teeth are the same and correspond one to one, and a crushing channel is set between two adjacent groups of first arc blocks and second arc blocks, and multiple groups of crushing channels are connected to form an annular retreat channel that matches the crushing teeth.

[0012] Preferably, the left and right side walls of each group of crushing teeth are wedge-shaped surfaces, and the pulverizing teeth move in the annular retreat channel. After the pulverizing teeth and the crushing teeth overlap, a wedge-shaped pulverizing groove is formed between the two.

[0013] Preferably, the crushing assembly also includes a storage groove opened inside the crushing box, a support plate is slidably installed in the storage groove, the bottom of the support plate is fixedly connected to each corresponding group of crushing teeth through a connecting rod, a driving member matching the support plate is fixed on the top of the storage groove, and multiple groups of support springs are fixed between the driving member and the support plate.

[0014] Preferably, the height of the crushing teeth is greater than the distance between the supporting plate and the driving member, the driving member is an electromagnet plate, and the supporting plate has a built-in magnet that matches the electromagnet plate.

[0015] Preferably, the lower hopper has a built-in screener, which includes a screen slidably assembled inside the lower hopper, a bracket is fixedly installed on the top outer edge of the screen, and the top of the bracket is set as an arc-shaped pressure platform. Buffer grooves are provided on the front and rear sides of the inner wall of the lower hopper, and the buffer groove is slidably assembled with a slide seat fixed on the outer wall of the screen, a buffer spring is fixedly connected between the top of the slide seat and the top of the inner wall of the buffer groove, a slag discharge port matching the screen is provided on the right side wall of the lower hopper, and a pull ring is fixed in the middle of the bottom of the screen.

[0016] A method for crushing raw materials is achieved by using the above-mentioned automatic crushing device for raw materials. The specific steps of the crushing method are: S1: The raw materials are introduced into the crushing box through the feed hopper, and the motor drives the crushing roller to rotate clockwise. The multiple groups of crushing teeth on the crushing roller are used to achieve preliminary crushing of the raw materials. The crushing roller drives the negative pressure fan to rotate through the driving shaft. The negative pressure generated by the rotation of the negative pressure fan is used. The dust inside the crushing box during the crushing of the raw materials will be sucked into the crushing roller under the negative pressure of the dust removal hole, prompting the air inside the crushing roller to be ejected from the protective cover through the air guide channel and the air guide port, thereby achieving dust removal protection during the crushing of the raw materials; S2: As the crushing roller rotates, the crushing teeth will overlap with the pulverizing teeth regularly. In this way, the rotating crushing roller has the function of guiding the materials. At the same time, the materials will also fill the crushing channel between the crushing teeth and the pulverizing teeth. Then, during the rotation of the crushing teeth, when the crushing teeth rotate to overlap with the pulverizing teeth, the large particles of materials after crushing are squeezed and crushed again by the extrusion force between the crushing teeth and the pulverizing teeth, which greatly increases the speed of raw material crushing. S3: When the crushing teeth and the pulverizing teeth are separated and rotated to between the first arc block and the second arc block, they are combined with the first arc block and the second arc block to form an arc-shaped guide plate. Several groups of guide plates are combined into a conveying auger. As the crushing roller rotates, the crushed materials are conveyed to the right, which accelerates the mixing degree of the materials. When the materials are conveyed to the right, the crushing teeth and the pulverizing teeth are used to extrude and pulverize the materials. In the process of conveying the materials from left to right, the materials are extruded and pulverized for many times, which improves the uniformity of raw material pulverization. S4: As the crushing operation proceeds, the driving part is controlled to work, generating an extrusion force on the support plate, which then overcomes the rebound force of the support spring and pushes the support plate together with the connecting rod and the crushing teeth to move synchronously, increasing the overlapping area between the crushing teeth and the crushing teeth, reducing the opening of the crushing channel, and realizing the control and adjustment of the particle size of the raw material crushing. After the material is extruded, it is directly discharged through the lower hopper.

[0017] The application of the raw material crushing method as described above in drawing protein first requires crushing the low-temperature edible soybean meal. The raw material automatic crushing device and crushing method provided by the present invention can be used to preliminarily crush the low-temperature edible soybean meal, and as the crushing proceeds, the crushing particle size of the device can be gradually adjusted, so that in the process from feeding to unloading of the raw material, the raw material is crushed step by step through the cooperation of the crushing component and the crushing component, and the crushing is more fine. At the same time, when the crushing component and the crushing component are coordinated, they also have the function of grinding the crushed residue, which greatly increases the efficiency of raw material crushing, while improving the crushing quality and reducing the subsequent grinding pressure.

[0018] Technical effects and advantages of the present invention: 1. The present invention utilizes the rotation of the crushing roller to drive the crushing teeth and the pulverizing teeth to extrude and crush the materials. The crushing roller drives the negative pressure fan to rotate through the driving shaft. The negative pressure generated by the rotation of the negative pressure fan is utilized. When the raw materials are crushed, the dust inside the crushing box is sucked into the crushing roller under the negative pressure of the dust removal hole, so that the air inside the crushing roller is ejected from the protective cover through the air guide channel and the air guide port, thereby realizing dust removal protection when the raw materials are crushed.

[0019] 2. The rotating crushing roller of the present invention has the function of guiding materials, and the materials will also be filled in the crushing channel between the crushing teeth and the pulverizing teeth. Then, in the process of the rotation of the crushing teeth, when the crushing teeth rotate to overlap with the pulverizing teeth, the large-particle materials after crushing are squeezed and crushed again by the extrusion force between the crushing teeth and the pulverizing teeth, which greatly improves the speed of raw material crushing. At the same time, when the crushing teeth and the pulverizing teeth are separated and rotated to between the first arc block and the second arc block, the first arc block and the second arc block are combined into an arc-shaped guide plate, and several groups of guide plates are combined into a conveying auger. With the rotation of the crushing roller, the crushed materials are conveyed to the right, which accelerates the mixing degree of the materials. In the process of conveying the materials from left to right, they are squeezed and crushed for many times, which improves the uniformity of raw material crushing.

[0020] 3. The present invention is provided with a crushing assembly, and by controlling the current value introduced into the driving member, the magnitude of the magnetic repulsion force on the supporting plate can be controlled, and then the length of the crushing teeth extending into the crushing channel can be adjusted, and then the size of the crushing channel can be changed, which is convenient in actual use. It can be controlled in real time according to the size of the raw materials to adapt to different raw material particle sizes, and is convenient for rapid crushing of the materials. When the raw materials are crushed, their crushing particle size can be slowly reduced. Therefore, in the process of the raw materials from the feed hopper to the lower hopper, the opening of the crushing channel is gradually reduced, and the raw materials can be gradually crushed into small particles. When the crushing teeth completely overlap with the crushing channel, the crushed materials can be ground based on the overlapping effect of the crushing teeth and the crushing teeth, which can greatly increase the particle uniformity of the raw materials when they are crushed, and provide convenience for subsequent grinding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention in a partial cross-section from a first viewing angle; Figure 3 It is a schematic diagram of the structure of the present invention from a second viewing angle in a partial cross-section; Figure 4 It is a schematic diagram of the overall longitudinal cross-sectional structure of the present invention; Figure 5 This is a schematic diagram of the overall structure of the crushing roller of the present invention; Figure 6 This is a front view of the crushing roller structure of the second embodiment of the present invention; Figure 7 It is a schematic diagram of the enlarged structure of part A of the present invention; Figure 8 It is a schematic diagram of the enlarged structure of part B of the present invention; Fig. 9 This is a schematic diagram of the structure of the first use state of the second embodiment of the present invention; Fig.10This is a schematic diagram of the structure of the second use state of the second embodiment of the present invention; Fig.11 It is a schematic diagram of the cross-sectional structure of the screener of the present invention.

[0022] In the figure: crushing components: 10, crushing box; 11, feed hopper; 12, lower hopper; 13, motor; 14, crushing roller; 15, crushing teeth; 16, first arc block; 17, second arc block; 18, crushing channel; 19, annular retreat channel; 110, wedge surface; Crushing assembly: 20, crushing teeth; 21, receiving slot; 22, supporting plate; 23, connecting rod; 24, driving member; 25, supporting spring; 26, wedge-shaped crushing slot; Dust removal components: 30, protective cover; 31, driving shaft; 32, negative pressure fan; 33, air guide port; 40. Screener; 41. Screen; 42. Bracket; 43. Arc-shaped pressure platform; 44. Buffer groove; 45. Sliding seat; 46. Buffer spring; 47. Slag discharge port; 48. Pull ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: This embodiment provides Figures 1 to 5 The raw material automatic crushing device shown includes a crushing component and a dust removal component. During the operation of the crushing component, not only can the raw materials be crushed quickly, but also the dust removal component can be driven to work, and then the dust generated by the crushing component can be cleaned synchronously. Specifically: See also Figure 1-Figure 5The crushing assembly includes a crushing box 10, a crushing roller 14 is transversely mounted inside the crushing box 10, and a motor 13 is fixedly mounted on the left end of the crushing roller 14, a plurality of groups of crushing tooth groups are integrally formed along the circumferential direction on the outer wall of the crushing roller 14, and each group of crushing tooth groups has a plurality of groups of crushing teeth 15 linearly arranged along the length direction of the crushing roller 14, and a plurality of groups of first arc blocks 16 and second arc blocks 17 integrally formed on the outer wall of the crushing roller 14 are arranged between two adjacent groups of crushing tooth groups, the first arc blocks 16 and the second arc blocks 17 have the same arc, each group of the first arc blocks 16 and the second arc blocks 17 are staggered, and a single group of the first arc blocks 16 and the second arc blocks 17 are distributed on a clockwise arc line, the crushing assembly also includes a feed hopper 11 fixed on the left side of the top of the crushing box 10 and a lower hopper 12 fixed on the right side of the bottom of the crushing box 10, and the length of the crushing roller 14 is adapted to the length of the inner cavity of the crushing box 10.

[0025] The raw material is introduced into the crushing box 10 through the feed hopper 11, and the motor 13 drives the crushing roller 14 to rotate clockwise. The multiple groups of crushing teeth 15 on the crushing roller 14 are used to achieve preliminary crushing of the raw material. As the crushing roller 14 rotates, the first arc block 16 and the second arc block 17 also rotate to participate in the raw material crushing operation, and the staggered first arc block 16 and the second arc block 17 can increase the mixing uniformity of the material, which is convenient for the crushing teeth 15 to quickly crush the raw material.

[0026] See also Figure 3 and Figure 4 The dust removal assembly includes a drive shaft 31 fixed to the right end of the crushing roller 14, the right end of the drive shaft 31 extends out of the crushing box 10 and is fixedly equipped with a negative pressure fan 32, and a hollow air guide channel is opened inside the drive shaft 31, and an air guide port 33 connected to the air guide channel is opened on the drive shaft 31 extending out of the crushing box 10, and the left end of the drive shaft 31 extends into the crushing roller 14, and the crushing roller 14 is provided with a dust removal hole connected to its inner cavity, and a protective cover 30 arranged on the outside of the negative pressure fan 32 is fixed on the right side wall of the crushing box 10.

[0027] It should be noted that the crushing roller 14 drives the negative pressure fan 32 to rotate through the driving shaft 31, and utilizes the negative pressure generated by the rotation of the negative pressure fan 32. The dust inside the crushing box 10 during raw material crushing will be sucked into the crushing roller 14 under the negative pressure of the dust removal hole, prompting the air inside the crushing roller 14 to pass through the air guide channel and the air guide port 33 and be ejected from the protective cover 30, thereby realizing dust removal protection during raw material crushing.

[0028] Embodiment 2: The present embodiment provides an automatic raw material crushing device, which not only includes the technical features disclosed in Example 1, but also includes a crushing component, and the crushing component includes a crushing tooth group distributed along the circumferential direction of the inner wall of the crushing box 10, and each group of crushing tooth groups is matched with the crushing tooth group, and each group of crushing tooth groups includes crushing teeth 20 linearly arranged along the length direction of the crushing box 10, and the crushing teeth 20 and the crushing teeth 15 are staggered. In this way, the extrusion force between the crushing teeth 15 and the crushing teeth 20 can be used to extrude and crush the crushed large particles again, thereby greatly improving the speed of raw material crushing.

[0029] See also Figure 8 and Fig. 9 A crushing channel 18 is set between two adjacent groups of crushing teeth 15. The number of first arc blocks 16, second arc blocks 17 and crushing teeth 15 is the same and one-to-one corresponding. A crushing channel 18 is set between two adjacent groups of first arc blocks 16 and second arc blocks 17. Multiple groups of crushing channels 18 are connected to form an annular retreat channel 19 matching the crushing teeth 20. The left and right side walls of each group of crushing teeth 15 are wedge-shaped surfaces 110. The crushing teeth 20 move in the annular retreat channel 19. After the crushing teeth 20 and the crushing teeth 15 overlap, a wedge-shaped crushing groove 26 is formed between the two.

[0030] During the rotation of the crushing roller 14, the crushing teeth 15 will regularly overlap with the pulverizing teeth 20, and the moving direction of the pulverizing teeth 20 in the crushing channel 18 is to rotate from the wide end to the narrow end. In this way, when rotating, the material also flows from the wide mouth to the narrow mouth. In addition, the crushing teeth 15 are staggered with the pulverizing teeth 20 during rotation, so that the material can be squeezed and crushed through the wedge-shaped crushing groove 26. The rotating crushing roller 14 has the function of guiding the material. At the same time, the material will also be filled in the crushing channel 18 between the crushing teeth 15 and the pulverizing teeth 20. Then, during the rotation of the crushing teeth 15, when the crushing teeth 15 rotate to overlap with the pulverizing teeth 20, the extrusion force between the crushing teeth 15 and the pulverizing teeth 20 is used to squeeze and crush the crushed large particles again, thereby greatly improving the speed of raw material crushing.

[0031] When the crushing teeth 15 and the pulverizing teeth 20 are separated and rotated to between the first arc block 16 and the second arc block 17, they are combined with the first arc block 16 and the second arc block 17 to form an arc-shaped guide plate. Several groups of guide plates are combined into a conveying auger. As the crushing roller 14 rotates, the crushed material is conveyed to the right, which accelerates the mixing degree of the material and facilitates the crushing and pulverizing of the material by the crushing teeth 15 and the pulverizing teeth 20 when the material is conveyed to the right. In the process of conveying the material from left to right, the material is extruded and crushed for many times, thereby improving the uniformity of raw material crushing.

[0032] See also Figure 4 and Figure 7The crushing assembly also includes a storage groove 21 opened inside the crushing box 10, and a supporting plate 22 is slidably assembled in the storage groove 21. The bottom of the supporting plate 22 is fixedly connected to each corresponding group of crushing teeth 20 through a connecting rod 23. A driving member 24 matching the supporting plate 22 is fixed on the top of the storage groove 21. A plurality of supporting springs 25 are fixed between the driving member 24 and the supporting plate 22. The height of the crushing teeth 15 is greater than the distance between the supporting plate 22 and the driving member 24. The driving member 24 is an electromagnet plate, and the supporting plate 22 has a built-in magnet that is compatible with the electromagnet plate.

[0033] In actual use, by controlling the current value introduced into the driving member 24, the magnitude of the magnetic repulsion force on the supporting plate 22 can be controlled, and then the length of the crushing teeth 20 extending into the crushing channel 18 can be adjusted, and then the size of the crushing channel 18 can be changed. In actual use, it is convenient to control in real time according to the size of the raw materials to adapt to different raw material particle sizes and facilitate rapid crushing of the materials.

[0034] During specific use, when the raw material is just put into the crushing box 10 from the feed hopper 11, due to the large particle size of the raw material, the current value introduced into the driving member 24 is controlled to be 0 at this time. At this time, the length of the crushing teeth 20 retracted into the crushing channel 18 is the smallest, and the crushing channel 18 is the largest. This is more conducive to crushing the material through the crushing teeth 20 and the crushing teeth 15 using the crushing channel 18, and can achieve basic crushing of the raw material. In this process, after the material is crushed, the cooperation of the crushing teeth 20, the first arc block 16 and the second arc block 17 can prompt the material to start conveying to the right. After a single raw material discharge is completed, the crushing roller 14 can be used to perform a preliminary crushing operation on the material.

[0035] Then, the current value introduced into the driving member 24 is controlled to increase, which can prompt the driving member 24 to generate a magnetic repulsion force on the support plate 22, prompting the support plate 22 to overcome the rebound force of the supporting spring 25 and move synchronously with the connecting rod 23 and the crushing tooth 20, thereby increasing the overlapping area between the crushing tooth 20 and the crushing tooth 15 and reducing the opening of the crushing channel 18, so that the crushed material can be crushed again and the crushing uniformity of the particles can be increased.

[0036] By analogy, the particle size of the raw material can be slowly reduced when it is crushed. Therefore, in the process of the raw material from the feed hopper 11 to the lower hopper 12, the opening of the crushing channel 18 is gradually reduced, so that the raw material can be gradually crushed into small particles. When the crushing teeth 20 completely overlap with the crushing channel 18, the crushed material can be ground based on the overlapping effect of the crushing teeth 20 and the crushing teeth 15, which can greatly increase the particle uniformity of the raw material when it is crushed, providing convenience for subsequent grinding operations.

[0037] In actual use, there are bean skins and bean purses in the low-temperature edible soybean meal, which are not easy to grind. In particular, bean purses are black and have a beany smell. Since bean skins and bean purses will adhere to the tissue fibers after the production of fibrous protein, they are not good-looking and not tasty. Because they are not protein, they still exist in the form of particles after extrusion. Therefore, the present application document designs a sifter 40 to facilitate the separation of bean skins and bean purses during the rotary grinding of soybean meal, specifically: See also Figure 1 , Figure 4 and Fig.11 The lower hopper 12 has a built-in screener 40, which includes a screen 41 slidably assembled inside the lower hopper 12, a bracket 42 is fixedly installed on the top outer edge of the screen 41, the top of the bracket 42 is set as an arc-shaped pressure platform 43, and the arc-shaped pressure platform 43 corresponds to the crushing teeth 15, and buffer grooves 44 are provided on the front and rear sides of the inner wall of the lower hopper 12. The buffer groove 44 is slidably equipped with a slide seat 45 fixed on the outer wall of the screen 41, and a buffer spring 46 is fixedly connected between the top of the slide seat 45 and the top of the inner wall of the buffer groove 44. A slag discharge port 47 matching the screen 41 is provided on the right side wall of the lower hopper 12, and a pull ring 48 is fixed in the middle of the bottom of the screen 41.

[0038] In actual use, during the process of feeding, the ground soybean meal powder is conveyed to the feeding hopper 12 together with the soybean skin and bean purse which are not easy to grind, and the crushing roller 14 is always in a rotating state, and the crushing teeth 15 rotate synchronously. Each time the crushing teeth 15 rotate to contact the arc-shaped pressure platform 43, the arc-shaped pressure platform 43 is squeezed, and then the bracket 42 overcomes the rebound force of the buffer spring 46 to drive the screen 41 to move downward in the feeding hopper 12, and the slide 45 slides in the buffer groove 44 to ensure the stability of the screen 41 when it moves. After 15 and the arc-shaped pressure platform 43 are offset, the screen 41 moves up and resets under the action of the rebound force of the buffer spring 46, so that the reciprocating screen 41 can be used to screen the soybean meal powder that has been ground during feeding, so that the bean skins and bean hairs that are not easy to grind can be screened out. When the accumulation of these bean skins and bean hairs is too much, the pull ring 48 can be manually pulled downward to move the screen 41 down to correspond to the slag discharge port 47, and then the bean skins and bean hairs on the surface of the screen 41 are cleaned off, and then the screen 41 is reset, and the screening work during low-temperature soybean meal grinding is carried out again.

[0039] It is worth noting that there is cooling liquid distributed inside the crushing roller 14, which can timely conduct the heat of the material grinding process during the rotation of the crushing roller 14 to achieve crushing and grinding, and quickly cool the material to achieve the purpose of temperature control and prevent the soybean meal from denaturing after heating and affecting the quality of the fibrous protein.

[0040] Embodiment 3: This embodiment provides a method for crushing raw materials, which is implemented by using the automatic crushing device for raw materials as described in Example 2. The specific steps of the crushing method are: S1: The raw material is introduced into the crushing box 10 through the feed hopper 11, and the motor 13 drives the crushing roller 14 to rotate clockwise. The multiple groups of crushing teeth 15 on the crushing roller 14 are used to achieve preliminary crushing of the raw material, and the crushing roller 14 drives the negative pressure fan 32 to rotate through the driving shaft 31. The negative pressure generated by the rotation of the negative pressure fan 32 is used. When the raw material is crushed, the dust inside the crushing box 10 is sucked into the crushing roller 14 under the negative pressure of the dust removal hole, so that the air inside the crushing roller 14 is ejected from the protective cover 30 through the air guide channel and the air guide port 33, so as to achieve dust removal protection when the raw material is crushed; S2: As the crushing roller 14 rotates, the crushing teeth 15 will overlap with the crushing teeth 20 regularly, so that the rotating crushing roller 14 has the function of guiding the materials, and the materials will also fill the crushing channel 18 between the crushing teeth 15 and the crushing teeth 20. Then, during the rotation of the crushing teeth 15, when the crushing teeth 15 rotate to overlap with the crushing teeth 20, the crushed large particles are squeezed and crushed again by the extrusion force between the crushing teeth 15 and the crushing teeth 20, which greatly improves the speed of raw material crushing; S3: When the crushing teeth 15 and the pulverizing teeth 20 are separated and rotated to between the first arc block 16 and the second arc block 17, they are combined with the first arc block 16 and the second arc block 17 to form an arc-shaped guide plate. Several groups of guide plates are combined into a conveying auger. As the crushing roller 14 rotates, the crushed material is conveyed to the right, which accelerates the mixing degree of the material. When the material is conveyed to the right, the crushing teeth 15 and the pulverizing teeth 20 are used to extrude and pulverize the material. In the process of conveying the material from left to right, the material is extruded and pulverized for multiple times, thereby improving the uniformity of raw material pulverization. S4: As the crushing operation proceeds, the driving member 24 is controlled to work, generating an extrusion force on the support plate 22, which then overcomes the rebound force of the support spring 25 and pushes the support plate 22 together with the connecting rod 23 and the crushing teeth 20 to move synchronously, thereby increasing the overlapping area between the crushing teeth 20 and the crushing teeth 15, reducing the opening of the crushing channel 18, and realizing the control and adjustment of the particle size of the raw material crushing. After the material is extruded, it is directly discharged through the lower hopper 12.

[0041] The present embodiment also proposes an application of the raw material crushing method as described above in drawing protein. When preparing drawing protein, low-temperature edible soybean meal is usually selected as the raw material, and when processing the low-temperature edible soybean meal, the low-temperature edible soybean meal must be crushed first. The raw material automatic crushing device and crushing method provided by the present invention can be used to preliminarily crush the low-temperature edible soybean meal, and as the crushing proceeds, the crushing particle size of the device can be gradually adjusted, so that in the process from feeding to unloading of the raw material, the raw material is crushed step by step through the cooperation of the crushing component and the crushing component, and the crushing is more delicate. At the same time, when the crushing component and the crushing component are coordinated, they also have the function of grinding the crushed residue, which greatly increases the efficiency of raw material crushing, while improving the crushing quality and reducing the subsequent grinding pressure.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The raw material automatic crushing device is characterized by: It includes crushing components and dust removal components, specifically: The crushing assembly comprises a crushing box (10), wherein a crushing roller (14) is transversely mounted inside the crushing box (10), and a motor (13) is fixedly mounted on the left end of the crushing roller (14), and a plurality of groups of crushing tooth groups are integrally formed along the circumferential direction on the outer wall of the crushing roller (14), and each group of crushing tooth groups has a plurality of groups of crushing teeth (15) linearly arranged along the length direction of the crushing roller (14), and a plurality of groups of first arc blocks (16) and second arc blocks (17) integrally formed on the outer wall of the crushing roller (14) are arranged between two adjacent groups of crushing tooth groups, wherein the first arc blocks (16) and the second arc blocks (17) have the same arc, and each group of the first arc blocks (16) and the second arc blocks (17) are staggered and a single group of the first arc blocks (16) and the second arc blocks (17) are distributed on a clockwise arc line; The dust removal component comprises a drive shaft (31) fixed to the right end of the crushing roller (14); the right end of the drive shaft (31) extends out of the crushing box (10) and is fixedly equipped with a negative pressure fan (32); a hollow air guide channel is provided inside the drive shaft (31); an air guide port (33) connected to the air guide channel is provided on the drive shaft (31) extending out of the crushing box (10); the left end of the drive shaft (31) extends into the crushing roller (14); and the crushing roller (14) is provided with a dust removal hole connected to its inner cavity.

2. The automatic raw material crushing device according to claim 1, characterized in that: The crushing assembly further comprises a feed hopper (11) fixed to the left side of the top of the crushing box (10) and a lower hopper (12) fixed to the right side of the bottom of the crushing box (10); the length of the crushing roller (14) is adapted to the length of the inner cavity of the crushing box (10); and a protective cover (30) arranged on the outside of the negative pressure fan (32) is fixed to the right side wall of the crushing box (10).

3. The automatic raw material crushing device according to claim 2, characterized in that: It also includes a crushing assembly, and the crushing assembly includes crushing tooth groups distributed along the circumferential direction of the inner wall of the crushing box (10), and each crushing tooth group matches a crushing tooth group, and each crushing tooth group includes crushing teeth (20) linearly arranged along the length direction of the crushing box (10), and the crushing teeth (20) and the crushing teeth (15) are arranged in an alternating manner.

4. The automatic raw material crushing device according to claim 3, characterized in that: A crushing channel (18) is provided between two adjacent groups of crushing teeth (15); the first arc blocks (16), the second arc blocks (17) and the crushing teeth (15) are of the same number and correspond one to one; a crushing channel (18) is provided between two adjacent groups of first arc blocks (16) and second arc blocks (17); and the plurality of groups of crushing channels (18) are connected to form an annular retreat channel (19) that matches the crushing teeth (20).

5. The automatic raw material crushing device according to claim 4, characterized in that: The left and right side walls of each group of crushing teeth (15) are both wedge-shaped surfaces (110). The crushing teeth (20) move in the annular retreat channel (19). After the crushing teeth (20) and the crushing teeth (15) overlap, a wedge-shaped crushing groove (26) is formed between the two.

6. The automatic raw material crushing device according to claim 5, characterized in that: The crushing assembly also includes a receiving groove (21) provided inside the crushing box (10), a supporting plate (22) being slidably mounted inside the receiving groove (21), the bottom of the supporting plate (22) being fixedly connected to each corresponding group of crushing teeth (20) via a connecting rod (23), a driving member (24) matching the supporting plate (22) being fixed at the top of the receiving groove (21), and a plurality of supporting springs (25) being fixed between the driving member (24) and the supporting plate (22).

7. The automatic raw material crushing device according to claim 6, characterized in that: The height of the crushing teeth (15) is greater than the distance between the support plate (22) and the driving member (24); the driving member (24) is an electromagnet plate; and the support plate (22) has a built-in magnet that matches the electromagnet plate.

8. The automatic raw material crushing device according to claim 7, characterized in that: The lower hopper (12) has a built-in screen (40), the screen (40) comprising a screen (41) slidably mounted inside the lower hopper (12), a bracket (42) fixedly mounted on the top outer edge of the screen (41), the top of the bracket (42) being arranged as an arc-shaped pressure platform (43), buffer grooves (44) being provided on both the front and rear sides of the inner wall of the lower hopper (12), the buffer groove (44) being slidably mounted with a slide seat (45) fixed on the outer wall of the screen (41), a buffer spring (46) being fixedly connected between the top of the slide seat (45) and the top of the inner wall of the buffer groove (44), a slag discharge port (47) matching the screen (41) being provided on the right side wall of the lower hopper (12), and a pull ring (48) being fixed in the middle of the bottom of the screen (41).

9. A method for crushing raw materials, which is realized by using the automatic crushing device for raw materials as claimed in claim 8, characterized in that: The specific steps of the crushing method are: S1: The raw material is introduced into the crushing box (10) through the feed hopper (11), and the motor (13) drives the crushing roller (14) to rotate clockwise. The multiple groups of crushing teeth (15) on the crushing roller (14) are used to achieve preliminary crushing of the raw material. The crushing roller (14) drives the negative pressure fan (32) to rotate through the driving shaft (31). The negative pressure generated by the rotation of the negative pressure fan (32) is used. When the raw material is crushed, the dust inside the crushing box (10) is sucked into the crushing roller (14) under the negative pressure of the dust removal hole, so that the air inside the crushing roller (14) is ejected from the protective cover (30) through the air guide channel and the air guide port (33), thereby achieving dust removal protection when the raw material is crushed; S2: As the crushing roller (14) rotates, the crushing teeth (15) will regularly overlap with the crushing teeth (20), so that the rotating crushing roller (14) has the function of guiding the materials, and the materials will also be filled in the crushing channel (18) between the crushing teeth (15) and the crushing teeth (20). Then, during the rotation of the crushing teeth (15), when the crushing teeth (15) rotate to overlap with the crushing teeth (20), the crushed large particles of materials are squeezed and crushed again by the squeezing force between the crushing teeth (15) and the crushing teeth (20), thereby greatly improving the speed of raw material crushing; S3: When the crushing teeth (15) and the pulverizing teeth (20) are separated and rotated to between the first arc block (16) and the second arc block (17), they are combined with the first arc block (16) and the second arc block (17) to form an arc-shaped guide plate. A plurality of groups of guide plates are combined to form a conveying auger. As the crushing roller (14) rotates, the crushed material is conveyed to the right, thereby accelerating the mixing degree of the material. When the material is conveyed to the right, the crushing teeth (15) and the pulverizing teeth (20) are used to extrude and pulverize the material. In the process of conveying the material from left to right, the material is extruded and pulverized for multiple times, thereby improving the pulverization uniformity of the raw material. S4: As the crushing operation proceeds, the driving member (24) is controlled to work, generating a squeezing force on the support plate (22), thereby overcoming the rebound force of the support spring (25) and pushing the support plate (22) together with the connecting rod (23) and the crushing teeth (20) to move synchronously, thereby increasing the overlapping area between the crushing teeth (20) and the crushing teeth (15), reducing the opening of the crushing channel (18), and realizing the control and adjustment of the particle size of the raw material crushing. After the material is squeezed, it is directly discharged through the lower hopper (12).

10. Use of the raw material pulverization method according to claim 9 in drawing protein.

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