Raw material automatic crushing device, crushing method and application in fibrous protein

Abstract

The present invention relates to the technical field of automatic raw material crushing devices, and discloses an automatic raw material crushing device, a crushing method and an application in fibrous protein. The device comprises a crushing assembly and a dust removal assembly, wherein a crushing roller is horizontally installed inside the crushing box, and a motor is fixedly installed at the left end of the crushing roller, and each group of crushing teeth is linearly arranged along the length direction of the crushing roller. The dust removal assembly comprises a driving shaft fixed at the right end of the crushing roller, and the right end of the driving shaft extends out of the crushing box and is fixedly equipped with a negative pressure fan. The crushing roller is rotated to drive the crushing teeth and the crushing teeth to extrude and crush the material. The crushing roller drives the negative pressure fan to rotate through the driving shaft, and the dust inside the crushing box when the raw material is crushed 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 realizing dust removal protection when the raw material is crushed.

Description

Technical Field

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

[0002] Fiber-drawn soy protein is a high-protein product with a muscle fiber structure, produced using low-temperature edible soybean meal, soy protein isolate, and gluten powder as its main raw materials. It is produced using advanced processes and equipment under fully automated operation and control. Fiber-drawn soy protein has an excellent structure and the organization of authentic meat fibers, making it very suitable for processing various high-end vegetarian meat-like foods. The product itself also has good water absorption and oil retention properties. After proper processing, it is an ideal high-protein additive for meat products.

[0003] However, in the production process of soy protein fibrous protein, since soy protein isolate and gluten powder are both finished powdered raw materials with a mesh size of 100 or above, 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 is only used to crush large particles, so it cannot ensure that the material has a fine and uniform particle size after crushing. This is an inherent disadvantage of the crushing device, and it needs to be equipped with a grinding device for further grinding to meet the usage standards.

[0004] In a soybean protein fibrous protein 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 fibrous protein soybean 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, first pulley, second pulley, transmission rod, first bevel gear and 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, resulting in uneven sizes of low-temperature edible soybean meal after crushing, and it is difficult to directly process soy products from the crushed low-temperature edible soybean meal. 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 blades can no longer continue to crush, and it is easy to cause stratification with gradually increasing particle size 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 an automatic raw material crushing device, a crushing method and an application in fibrous protein, so as to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an automatic raw material crushing device, comprising a crushing component and a dust removal component, specifically:

[0009] The crushing assembly includes 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. Several groups of crushing teeth are integrally formed on the outer wall of the crushing roller along the circumferential direction, and each group of crushing teeth includes several groups of crushing teeth linearly arranged along the length direction of the crushing roller. Between two adjacent groups of crushing teeth, there are multiple groups of first and second arc blocks integrally formed on the outer wall of the crushing roller. The first and second arc blocks have the same curvature, and each group of the first and second arc blocks are staggered, and a single group of the first and second arc blocks are distributed on a clockwise arc line.

[0010] The dust removal assembly includes a drive shaft fixed to the right end of the crushing roller, the right end of the drive shaft extends out of the crushing box and is fixedly equipped with a negative pressure fan, and a hollow air guide channel is provided inside the drive shaft, and an air guide port connected to the air guide channel is provided on the drive shaft extending out of the crushing box, and the left end of the drive shaft extends into the interior of the crushing roller, and the crushing roller is provided with a dust removal hole connected to its inner cavity.

[0011] 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.

[0012] 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 is matched with a crushing tooth group, and 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.

[0013] 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. Multiple groups of crushing channels are connected to form an annular retreat channel that matches the crushing teeth.

[0014] Preferably, the left and right side walls of each group of the crushing teeth are both 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.

[0015] Preferably, the crushing assembly also includes a receiving groove opened inside the crushing box, a support plate is slidably assembled in the receiving groove, the bottom of the support plate is fixedly connected to each corresponding group of crushing teeth through a connecting rod, and a driving member matching the support plate is fixed on the top of the receiving groove, and multiple groups of support springs are fixed between the driving member and the support plate.

[0016] 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 adapted to the electromagnet plate.

[0017] Preferably, the lower hopper has a built-in screener, and the screener 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, and 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 fixed on the outer wall of the screen, and a buffer spring is fixedly connected between the top of the slide and the top of the inner wall of the buffer groove, and 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.

[0018] A method for crushing raw materials is achieved by using the above-mentioned automatic raw material crushing device. The specific steps of the crushing method are as follows:

[0019] S1: The raw materials are introduced into the crushing box through the feed hopper. The motor drives the crushing roller to rotate clockwise. The multiple sets 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 drive shaft. The negative pressure generated by the negative pressure fan is used. The dust inside the crushing box is sucked into the crushing roller under the negative pressure of the dust removal hole when the raw materials are crushed. The air inside the crushing roller is forced to pass through the air guide channel and the air guide port and be ejected from the protective cover to achieve dust removal protection during the crushing of the raw materials.

[0020] S2: As the crushing roller rotates, the crushing teeth will regularly overlap with the pulverizing teeth. In this way, the rotating crushing roller has the function of dredging the materials. At the same time, the materials will also be filled in the crushing channel between the crushing teeth and the pulverizing teeth. Then, in the process of the crushing teeth rotating, when the crushing teeth rotate to overlap with the pulverizing teeth, the extrusion force between the crushing teeth and the pulverizing teeth will be used to squeeze and crush the large particles of materials after crushing, which greatly increases the speed of raw material crushing.

[0021] 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 material is conveyed to the right, which accelerates the mixing of the material and facilitates the crushing and pulverizing teeth to squeeze and crush the material when the material is conveyed to the right. In the process of conveying the material from left to right, it is squeezed and crushed multiple times, which improves the uniformity of the raw material crushing;

[0022] 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 raw material crushing particle size. After the material is extruded, it is directly discharged through the lower hopper.

[0023] The application of the raw material crushing method as described above in fibrous protein first requires crushing the low-temperature edible soybean meal. The automatic raw material 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 the raw material is crushed step by step in the process from feeding to unloading 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.

[0024] Technical effects and advantages of the present invention:

[0025] 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, 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 realizing dust removal protection when the raw materials are crushed.

[0026] 2. The rotating crushing roller of the present invention has the function of guiding the material. At the same time, the material 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 coincide with the pulverizing teeth, the extrusion force between the crushing teeth and the pulverizing teeth is used to squeeze and crush the crushed large particles of material again, thereby greatly improving 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. Several groups of guide plates are combined into a conveying auger. As the crushing roller rotates, the crushed material has the function of being conveyed to the right, thereby accelerating the mixing degree of the material. In the process of conveying the material from left to right, it is squeezed and crushed multiple times, thereby improving the uniformity of raw material crushing.

[0027] 3. The present invention provides a crushing assembly, which can control the magnitude of its magnetic repulsion on the support plate by controlling the current value introduced into the driving part, and then adjust the length of the crushing teeth extending into the crushing channel, and then change the size of the crushing channel, so that 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, facilitate rapid crushing of the material, and slowly reduce the crushing particle size when the raw material is crushed. Therefore, in the process of the raw material from the feed hopper to the lower hopper, the opening of the crushing channel is gradually reduced, so that the raw material can be gradually crushed into small particles, and when the crushing teeth completely overlap with the crushing channel, the crushed material 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 material when it is crushed, and provide convenience for subsequent grinding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention from a first perspective in partial cross-section;

[0030] Figure 3 This is a schematic diagram of the structure of the present invention from a second perspective of a partial cross-section;

[0031] Figure 4 This is a schematic diagram of the overall longitudinal cross-sectional structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the overall structure of the crushing roller of the present invention;

[0033] Figure 6 This is a front view of the crushing roller structure of the second embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the enlarged structure of part A of the present invention;

[0035] Figure 8 This is a schematic diagram of the enlarged structure of part B of the present invention;

[0036] Figure 9 This is a schematic structural diagram of the first usage state of the second embodiment of the present invention;

[0037] Figure 10 This is a schematic structural diagram of the second use state of the second embodiment of the present invention;

[0038] Figure 11 It is a schematic diagram of the cross-sectional structure of the screener of the present invention.

[0039] 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;

[0040] 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;

[0041] Dust removal components: 30, protective cover; 31, drive shaft; 32, negative pressure fan; 33, air guide port;

[0042] 40. Screener; 41. Screen; 42. Bracket; 43. Arc-shaped pressure platform; 44. Buffer trough; 45. Slide; 46. Buffer spring; 47. Slag discharge port; 48. Pull ring. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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.

[0044] Example 1:

[0045] This embodiment provides Figures 1 to 5 The raw material automatic crushing device shown in the figure includes a crushing component and a dust removal component. When the crushing component is working, it can not only realize the rapid crushing of the raw materials, but also drive the dust removal component to work, and then can simultaneously clean the dust generated by the crushing component. Specifically:

[0046] See also Figure 1-Figure 5The crushing assembly includes a crushing box 10, a crushing roller 14 is horizontally installed inside the crushing box 10, and a motor 13 is fixedly installed on the left end of the crushing roller 14, and several groups of crushing tooth groups are integrally formed on the outer wall of the crushing roller 14 along the circumferential direction, and each group of crushing tooth groups has several groups of crushing teeth 15 linearly arranged along the length direction of the crushing roller 14, and multiple 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 curvature, each group of first arc blocks 16 and second arc blocks 17 are staggered and a single group of first arc blocks 16 and second arc blocks 17 are distributed on a clockwise arc line, the crushing assembly also includes 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.

[0047] The raw materials are 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 materials. 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. The staggered arrangement of the first arc block 16 and the second arc block 17 can increase the mixing uniformity of the material, making it convenient for the crushing teeth 15 to quickly crush the raw materials.

[0048] 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. 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. The crushing roller 14 is provided with a dust removal hole connected to its inner cavity. 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.

[0049] It should be noted that the crushing roller 14 drives the negative pressure fan 32 to rotate through the drive shaft 31, and utilizes the negative pressure generated by the rotation of the negative pressure fan 32. The dust inside the crushing box 10 when the raw material is crushed will be sucked into the crushing roller 14 under the action of the negative pressure of the dust removal hole, prompting the air inside the crushing roller 14 to be ejected from the protective cover 30 through the air guide channel and the air guide port 33, thereby realizing dust removal protection when the raw material is crushed.

[0050] Example 2:

[0051] This embodiment provides an automatic raw material crushing device, which not only includes the technical features disclosed in Example 1, but also includes a crushing assembly, and the crushing assembly 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 a crushing tooth group. 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 squeeze and crush the crushed large particles again, thereby greatly improving the speed of raw material crushing.

[0052] See also Figure 8 and Figure 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 corresponds one to one. 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 that matches 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.

[0053] During the rotation of the crushing roller 14, the crushing teeth 15 will regularly overlap with the crushing teeth 20, and the moving direction of the crushing teeth 20 in the crushing channel 18 is from the wide end to the narrow end. In this way, during rotation, the material also flows from the wide mouth to the narrow mouth. In addition, the crushing teeth 15 are staggered with the crushing 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 dredging the material. At the same time, the material 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 extrusion force between the crushing teeth 15 and the crushing teeth 20 is used to squeeze and crush the crushed large particles again, thereby greatly improving the speed of raw material crushing.

[0054] 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 of the material and facilitates the use of the crushing teeth 15 and the pulverizing teeth 20 to extrude and crush the material 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 multiple times, thereby improving the uniformity of the raw material crushing.

[0055] See also Figure 4 and Figure 7The crushing assembly also includes a receiving groove 21 opened inside the crushing box 10, and a supporting plate 22 is slidably assembled in the receiving 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 to the top of the receiving groove 21. Multiple groups 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 adapted to the electromagnet plate.

[0056] In actual use, by controlling the current value introduced into the driving member 24, the magnitude of its magnetic repulsion 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, which is convenient in actual use. It can be controlled in real time according to the size of the raw material to adapt to different raw material particle sizes and facilitate rapid crushing of the material.

[0057] 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 the single raw material unloading is completed, the crushing roller 14 can be used to perform a preliminary crushing operation on the material.

[0058] 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 repulsive force on the support plate 22, prompting the support plate 22 to overcome the rebound force of the support 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.

[0059] 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 during crushing, and provide convenience for subsequent grinding operations.

[0060] In actual use, low-temperature edible soybean meal contains bean skins and cornstarch, which are difficult to grind. In particular, cornstarch is black and has a beany smell. Since bean skins and cornstarch adhere to the tissue fibers after the production of fibrous protein, they are not good-looking and not tasty. Since 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 cornstarch during the rotary grinding of soybean meal. Specifically:

[0061] See also Figure 1 、 Figure 4 and Figure 11 The lower hopper 12 has a built-in screener 40, which includes a screen 41 slidably assembled inside the lower hopper 12, and 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. Buffer grooves 44 are provided on the front and back sides of the inner wall of the lower hopper 12. The buffer groove 44 is slidably assembled with a slide 45 fixed on the outer wall of the screen 41, and a buffer spring 46 is fixedly connected between the top of the slide 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.

[0062] In actual use, during the discharge process, the ground soybean meal powder is conveyed to the discharge hopper 12 together with the bean skin and bean purse that 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 and drives the screen 41 to move downward in the discharge hopper 12. 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. In this way, 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 purses that are not easy to grind can be screened out. When the amount of these bean skins and bean purses accumulated is too much, the pull ring 48 can be manually pulled down to move the screen 41 down to correspond to the slag discharge port 47, and then the bean skins and bean purses on the surface of the screen 41 are cleaned off, and then the screen 41 is reset to perform the screening work during low-temperature soybean meal grinding again.

[0063] 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 being denatured after being heated and affecting the quality of the fibrous protein.

[0064] Example 3:

[0065] This embodiment provides a method for crushing raw materials, which is implemented using the automatic raw material crushing device described in Example 2. The specific steps of the crushing method are as follows:

[0066] 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 drive 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. The air inside the crushing roller 14 is forced to pass through the air guide channel and the air guide port 33 and be ejected from the protective cover 30, thereby achieving dust removal protection when the raw material is crushed;

[0067] S2: As the crushing roller 14 rotates, the crushing teeth 15 will regularly overlap with the crushing teeth 20. In this way, the rotating crushing roller 14 has the function of guiding the materials. At the same time, 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 extrusion force between the crushing teeth 15 and the crushing teeth 20 is used to squeeze and crush the crushed large particles again, thereby greatly improving the speed of raw material crushing.

[0068] S3: When the crushing teeth 15 and the crushing 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 of the material and facilitates the crushing and crushing of the material by the crushing teeth 15 and the crushing teeth 20 when the material is conveyed to the right. In the process of conveying the material from left to right, it is squeezed and crushed multiple times, thereby improving the uniformity of the raw material crushing;

[0069] 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, 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 raw material crushing particle size. After the material is extruded, it is directly discharged through the lower hopper 12.

[0070] This embodiment also proposes an application of the raw material crushing method as described above in fibrous protein. When preparing fibrous 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 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.

[0071] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 scope of protection of the present invention.

Claims

1. Automatic raw material crushing device, characterized in that: 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 teeth are integrally formed on the outer wall of the crushing roller (14) along the circumferential direction, and each group of crushing teeth 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 teeth, 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 assembly includes a drive shaft (31) fixed to the right end of the crushing roller (14), the right end of the drive shaft (31) extending out of the crushing box (10) is fixedly equipped with a negative pressure fan (32), and a hollow air guide channel is provided inside the drive shaft (31), and an air guide port (33) communicating with the air guide channel is provided 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 communicating with its inner cavity; The crushing assembly further comprises a crushing tooth group 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 comprises 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. 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 crushing channels (18) are connected to form an annular retreat channel (19) that matches the crushing teeth (20); 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.

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). 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: The crushing assembly further comprises a receiving groove (21) provided inside the crushing box (10), a supporting plate (22) being slidably mounted in 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).

4. The automatic raw material crushing device according to claim 3, characterized in that: 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 adapted to the electromagnet plate.

5. The automatic raw material crushing device according to claim 4, characterized in that: The lower hopper (12) has a built-in screen (40), and the screen (40) includes a screen (41) slidably mounted inside the lower hopper (12), a bracket (42) is fixedly mounted on the top outer edge of the screen (41), and the top of the bracket (42) is set as an arc-shaped pressure platform (43), and buffer grooves (44) are provided on both the front and rear sides of the inner wall of the lower hopper (12), and the buffer groove (44) is slidably mounted with a slide (45) fixed on the outer wall of the screen (41), and a buffer spring (46) is fixedly connected between the top of the slide (45) and the top of the inner wall of the buffer groove (44), and 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).

6. A method for crushing raw materials, which is achieved by using the automatic raw material crushing device according to claim 5, 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), the motor (13) drives the crushing roller (14) to rotate clockwise, and 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 drive shaft (31). The negative pressure generated by the rotation of the negative pressure fan (32) is used, and the dust inside the crushing box (10) during the crushing of the raw material is sucked into the crushing roller (14) under the action of 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 during the crushing of the raw material; 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 material, and the material 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 are squeezed and crushed again by the extrusion force between the crushing teeth (15) and the crushing teeth (20), thereby greatly increasing 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, 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 squeeze and crush the material. In the process of conveying the material from left to right, the material is squeezed and crushed multiple times, thereby improving the uniformity of the raw material crushing. 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).

7. Use of the raw material pulverization method according to claim 6 in drawing protein.

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