Crushing Device and Method for Food Additive Production

Abstract

The present invention relates to the technical field of food additive processing, and specifically, to a pulverizing device and method for food additive production. It includes a housing, a feeding port is provided at the top of the housing, a feeding assembly is provided in the feeding port, a screening assembly is provided below the feeding assembly, and the screening assembly is slidably connected to the inner side wall of the feeding port; in this pulverizing device for food additive production, the feeding assembly provided is used to control the feeding of food additive raw materials, and the screening assembly is used to screen the massive raw materials and powdery raw materials. When feeding into the housing, the feeding assembly can simultaneously press down the screening assembly, increasing the falling height of the massive raw materials, causing the massive raw materials with larger block diameters to break into raw materials with smaller block diameters. At the same time, it can also shake off the powdery raw materials from the massive raw materials, increasing the frictional force between the massive raw materials and the pulverizing rollers, so as to make the massive food additive raw materials crushed more thoroughly.

Description

Technical Field

[0001] The present invention relates to the technical field of food additive processing, and more specifically, to a crushing device and method for food additive production. Background Art

[0002] When producing food additives such as potassium chloride, phosphates, and sulfates, it is necessary to crush their raw materials. Before crushing the raw materials of food additives, in the massive crystal raw materials, there are often raw material powders with smaller particles mixed. If these powdered raw materials enter the crushing mechanism together with the massive raw materials, it will reduce the friction between the crushing roller and the massive crystal, resulting in the phenomenon that the crushing roller "pushes" the massive crystal to slide in the crushing cavity, affecting the crushing effect of the food additive raw materials. In addition, if the block diameter of the food additive raw materials is too large, it will also affect the crushing effect of the crushing roller on the raw materials.

[0003] In view of this, we propose a crushing device and method for food additive production to improve the deficiencies in the prior art. Summary of the Invention

[0004] A crushing device for food additive production is provided to solve the problems raised in the above background art.

[0005] To achieve the above object, one of the objects of the present invention is to provide a crushing device for food additive production, including a housing. A feeding port is provided at the top of the housing. A feeding assembly is provided in the feeding port. A screening assembly is provided below the feeding assembly. The screening assembly is slidably connected to the inner side wall of the feeding port. The feeding assembly is used to control the feeding of food additive raw materials. The screening assembly is used to screen massive raw materials and powdered raw materials. When feeding into the housing, the feeding assembly can press down the screening assembly.

[0006] One side of the screening assembly away from the feeding port is communicated with a crushing assembly. The crushing assembly is used to crush the massive raw materials screened by the screening assembly. A pair of symmetric ventilation slots are opened at the bottom of the side wall of the crushing assembly. A blowing assembly is provided in the two ventilation slots. The blowing assembly is used to blow the crushed raw material powder into the interior of the housing.

[0007] A driving assembly is provided at the bottom of the screening assembly, and the driving assembly is used to drive the screening assembly to make up and down reciprocating motions to shake the powdered raw materials off the block raw materials. In the process of driving the screening assembly to make up and down reciprocating motions, the driving assembly can also break the block raw materials with larger block diameters. A discharging assembly is provided below the screening assembly, and the discharging assembly is rotatably connected to the inner side wall of the shell. The discharging assembly is used to receive the powdered raw materials after screening. The discharging assembly can complete the automatic discharging of the powdered raw materials in the process of pressing the screening assembly downward. In the process of discharging, the discharging assembly can also control the powdered raw materials screened in the crushing assembly to enter the shell.

[0008] As a further improvement of the present technical solution, the feeding assembly includes a limit plate fixedly connected between a pair of inner side walls away from the feeding port, a plurality of limit rods are fixedly connected to the top of the limit plate, and a "U"-shaped plate is slidably connected to one end of the limit rods away from the limit plate, and a plurality of first springs are fixedly connected between the limit plate and the inner top wall of the "U"-shaped plate.

[0009] As a further improvement of the present technical solution, the screening assembly includes a plurality of guide rods fixedly connected to the inner top wall of the feeding port, a plurality of the guide rods are slidably connected with inclined screen plates, and a plurality of second springs are fixedly connected between the inclined screen plates and the inner top wall of the feeding port.

[0010] As a further improvement of the technical solution, the crushing assembly includes a crushing chamber, a main rod is coaxially connected to the crushing chamber, a crushing roller is fixedly connected to one side of the main rod, and the crushing roller is driven by a motor.

[0011] As a further improvement of the present technical solution, the blower assembly includes an installation groove arranged on the outside of the two ventilation grooves, a fan is provided in the installation groove away from the shell, the fan is provided with an air filter plate on the inner cavity side close to the crushing chamber, and a slide plate is slidably connected in the installation groove close to the shell.

[0012] As a further improvement of the present technical solution, the driving assembly includes a pair of guide rails fixedly connected to the bottom of the inclined screen plate, the two guide rails are slidably connected to the inner wall of the shell, a rack is provided between the two guide rails, the rack is slidably connected to the inner wall of the shell, a single-sided gear is meshed on the side of the rack away from the inner wall of the shell, and the single-sided gear is driven by a motor.

[0013] As a further improvement of the technical solution, the unloading assembly includes a lower pressure rod fixedly connected to the bottom of the inclined screen plate and a unloading plate rotatably connected to the slide plate, and the unloading plate is rotatably connected to the inner side wall of the shell.

[0014] The second object of the present invention is to provide a method for operating the above-mentioned pulverizing device for producing food additives, comprising the following steps:

[0015] S1. First, put the raw material into the feeding port. The inside of the feeding port is blocked by the top of the feeding assembly. Press down the top of the feeding assembly, and the raw material slides from the gap between the feeding assembly and the inner wall of the feeding port to the top of the screening assembly. At the same time, the bottom of the feeding assembly drives the screening assembly down, increasing the height that the raw material passes when falling to the top of the screening assembly, thereby shaking the powdered raw material off the block raw material;

[0016] S2. The raw materials falling on the top of the screening component, under the action of their own gravity, the powdered raw materials pass through the screening component and fall below the screening component, and the block raw materials slide toward the crushing component under the action of their own gravity. In the process of the block raw materials sliding toward the crushing component, the driving component drives the screening component to reciprocate up and down along the inner wall of the shell, at which time the block raw materials are bounced up and collide with the inner top wall of the shell, so that the block raw materials are crushed;

[0017] S3, the block raw materials after screening and crushing by the screening component enter the crushing component, and the crushing component crushes the block raw materials into powder. Due to the difference in quality between the powder raw materials and the block raw materials, the powder raw materials are blown into the shell by the blowing component;

[0018] S4. The powdered raw materials screened by the screening component fall to the top of the unloading component. During the downward pressing process of the screening component, the screening component can automatically complete the unloading of the powdered raw materials on the top of the unloading component. At the same time, the unloading component can also open the channel between the crushing component and the shell, and blow the crushed raw materials in the crushing component into the shell through the blowing component. The wind blown by the blowing component can also blow the powder attached to the unloading component away from the top of the unloading component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the pulverizing device for producing food additives, a feeding component is provided to control the feeding of food additive raw materials, and a screening component is provided to screen block raw materials and powdered raw materials. When feeding into the shell, the feeding component can simultaneously press down the screening component to increase the height of the falling block raw materials, so that block raw materials with larger block diameters are broken into raw materials with smaller block diameters. At the same time, the powdered raw materials can also be shaken off the block raw materials, so that the friction between the block raw materials and the pulverizing roller is increased, thereby crushing the block food additive raw materials more thoroughly.

[0021] 2. In the pulverizing device for producing food additives, a pulverizing component is provided to pulverize the block raw materials screened by the screening component, and an air blowing component is used to blow the pulverized raw material powder into the interior of the shell. After the fan blows the wind of the raw material powder into the shell, the raw material powder attached to the discharge plate can also be blown off from the discharge plate.

[0022] 3. In the pulverizing device for producing food additives, a driving assembly is provided to drive the screening assembly to make up and down reciprocating motion, so as to shake the powdered raw materials off the block raw materials. In the process of driving the screening assembly to make up and down reciprocating motion, the driving assembly can also break the block raw materials with larger block diameters. A discharging assembly is provided below the screening assembly, and the discharging assembly is rotatably connected to the inner side wall of the shell. The discharging assembly is used to receive the powdered raw materials after screening. The discharging assembly can complete the automatic discharging of the powdered raw materials in the process of pressing down the screening assembly. In the process of discharging, the discharging assembly can also control the powdered raw materials screened in the pulverizing assembly to enter the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall cutaway view of the present invention;

[0025] Figure 3 It is an overall cutaway front view of the present invention;

[0026] Figure 4 It is a cutaway view of a crushing assembly and an air blast assembly of the present invention;

[0027] Figure 5 It is a structural diagram of the feeding assembly of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0029] Figure 7 It is a structural diagram of the screening assembly of the present invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle;

[0031] Figure 9 It is the front view of the unloading assembly of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 10. Shell; 11. Feeding port;

[0034] 20. Feeding assembly; 21. Limiting plate; 22. Limiting rod; 23. "U"-shaped plate; 24. First spring;

[0035] 30. Screening assembly; 31. Guide rod; 32. Inclined screen plate; 33. Second spring;

[0036] 40. Crushing assembly; 41. Crushing chamber; 42. Main rod; 43. Crushing roller;

[0037] 50. Blower assembly; 51. Mounting slot; 52. Fan; 53. Air filter plate; 54. Slide plate;

[0038] 60. driving assembly; 61. guide rail; 62. rack; 63. single-sided gear;

[0039] 70. Unloading assembly; 71. Lower pressure rod; 72. Unloading plate. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1, please refer to Figures 1-9 As shown, the purpose of this embodiment is to provide a pulverizing device for food additive production, including a shell 10, a feeding port 11 is provided on the top of the shell 10, a feeding assembly 20 is provided in the feeding port 11, a screening assembly 30 is provided below the feeding assembly 20, the screening assembly 30 is slidably connected to the inner wall of the feeding port 11, the feeding assembly 20 is used to control the feeding of food additive raw materials, the screening assembly 30 is used to screen block raw materials and powdered raw materials, and when feeding into the shell 10, the feeding assembly 20 can press the screening assembly 30 downward;

[0042] The side of the screening component 30 away from the feeding port 11 is connected to the crushing component 40, which is used to crush the block raw materials screened by the screening component 30. A pair of symmetrical ventilation slots are provided at the bottom of the side wall of the crushing component 40. The two ventilation slots are provided with a blasting component 50, which is used to blow the crushed raw material powder into the interior of the housing 10;

[0043] A driving assembly 60 is provided at the bottom of the screening assembly 30. The driving assembly 60 is used to drive the screening assembly 30 to reciprocate up and down to shake the powdered raw materials off the block raw materials. In the process of driving the screening assembly 30 to reciprocate up and down, the driving assembly 60 can also break the block raw materials with larger block diameters. A discharge assembly 70 is provided below the screening assembly 30. The discharge assembly 70 is rotatably connected to the inner side wall of the shell 10. The discharge assembly 70 is used to receive the powdered raw materials after screening. The discharge assembly 70 can complete the automatic unloading of the powdered raw materials during the process of pressing the screening assembly 30 downward. During the unloading process, the discharge assembly 70 can also control the powdered raw materials screened in the crushing assembly 40 to enter the shell 10.

[0044] Working principle: When the pulverizing device for producing food additives provided by the present invention is used, the raw material is first placed in the feeding port 11, and the inside of the feeding port 11 is blocked by the top of the feeding component 20. The top of the feeding component 20 is pressed down, and the raw material slides from the gap between the feeding component 20 and the inner wall of the feeding port 11 to the top of the screening component 30. At the same time, the bottom of the feeding component 20 drives the screening component 30 to descend, increasing the height passed by the raw material when falling to the top of the screening component 30, thereby shaking the powdered raw material off the block raw material; the raw material that falls on the top of the screening component 30 passes through the screening component 30 under the action of its own gravity and falls to the bottom of the screening component 30, and the block raw material slides toward the pulverizing component 40 under the action of its own gravity. In the process of the block raw material sliding toward the pulverizing component 40, the driving component 60 drives the screening component 30 to reciprocate up and down along the inner wall of the shell 10. At this time The block material is bounced up and collides with the inner top wall of the shell 10, so that the block material is broken; the block material after screening and crushing by the screening component 30 enters the crushing component 40, and the crushing component 40 crushes the block material into powder. Due to the difference in quality between the powdered material and the block material, the powdered material is blown into the shell 10 by the blowing component 50; the powdered material after screening by the screening component 30 falls to the top of the discharge component 70. During the downward pressing process of the screening component 30, the screening component 30 can automatically complete the discharge of the powdered material on the top of the discharge component 70. At the same time, the discharge component 70 can also open the channel between the crushing component 40 and the shell 10, and blow the crushed material in the crushing component 40 into the shell 10 through the blowing component 50. The wind blown by the blowing component 50 can also blow the powder attached to the discharge component 70 away from the top of the discharge component 70.

[0045] The specific structure of the feeding assembly 20 is disclosed. The feeding assembly 20 includes a limit plate 21 fixedly connected between a pair of inner side walls away from the feeding port 11, a plurality of limit rods 22 are fixedly connected to the top of the limit plate 21, a "U"-shaped plate 23 is slidably connected to one end of the plurality of limit rods 22 away from the limit plate 21, and a plurality of first springs 24 are fixedly connected between the limit plate 21 and the inner top wall of the "U"-shaped plate 23;

[0046] Further, when the "U"-shaped plate 23 is not pressed down, the raw materials added into the feeding port 11 are blocked by the top of the "U"-shaped plate 23, so as to accumulate between the "U"-shaped plate 23 and the inner wall of the feeding port 11. Pressing down the "U"-shaped plate 23 causes a gap to appear between its outer wall and the feeding port 11. At the same time, the bottom of the "U"-shaped plate 23 drives the inclined sieve plate 32 to move downward, thereby increasing the height that the bulk raw materials pass through to reach the inclined sieve plate 32. During this period, the first spring 24 is always in a compressed state. After the feeding is completed, the downward pressure on the "U"-shaped plate 23 is removed, and the "U"-shaped plate 23 resets under the restoring force of the first spring 24, so as to block the bulk raw materials between the top of the "U"-shaped plate 23 and the inner wall of the feeding port 11 again.

[0047] Secondly, the specific structure of the screening assembly 30 is disclosed. The screening assembly 30 includes a plurality of guide rods 31 fixedly connected to the inner top wall of the feeding port 11. An inclined sieve plate 32 is slidably connected to the plurality of guide rods 31. A plurality of second springs 33 are fixedly connected between the inclined sieve plate 32 and the inner top wall of the feeding port 11. The driving assembly 60 includes a pair of guide rails 61 fixedly connected to the bottom of the inclined sieve plate 32. Both of the two guide rails 61 are slidably connected to the inner side wall of the housing 10. A rack 62 is provided between the two guide rails 61. The rack 62 is slidably connected to the inner side wall of the housing 10. A single-sided gear 63 is meshed with one side of the rack 62 away from the inner side wall of the housing 10. The single-sided gear 63 is driven by a motor.

[0048] Further, the motor drives the single-sided gear 63 coaxially connected to its output shaft to rotate. The single-sided gear 63 drives the rack 62 to perform a reciprocating up and down movement. The rack 62 then drives the inclined sieve plate 32 fixedly connected thereto to perform a reciprocating up and down movement. When the inclined sieve plate 32 is pressed down, the second spring 33 is compressed. When the single-sided gear 63 rotates to a state where it is not meshed with the rack 62, the compressed second spring 33 suddenly loses pressure. The inclined sieve plate 32 drives the bulk raw materials at its top to move upward under the restoring force of the second spring 33. The bulk raw materials moving upward collide with the inner top wall of the housing 10, and the raw materials with a larger particle diameter will be crushed into raw materials with a smaller particle diameter, thus facilitating the subsequent crushing of the raw materials.

[0049] Secondly, the specific structure of the discharging assembly 70 is disclosed. The discharging assembly 70 includes a pressing rod 71 fixedly connected to the bottom of the inclined sieve plate 32 and a discharging plate 72 rotatably connected to the sliding plate 54. The discharging plate 72 is rotatably connected to the inner side wall of the housing 10.

[0050] Further, when the inclined sieve plate 32 is pressed down, it drives the pressing rod 71 to press down one end of the discharging plate 72. The middle part of the discharging plate 72 is rotatably connected to the housing 10. According to the lever principle, the end of the discharging plate 72 away from the pressing rod 71 will tilt upward, and the powder on the discharging plate 72 will slide off the discharging plate 72 under the action of its own gravity.

[0051] Since the bulk raw materials for producing food additives need to be crushed, the crushing assembly 40 includes a crushing chamber 41, a main rod 42 is coaxially connected to the crushing chamber 41, and a crushing roller 43 is fixedly connected to one side of the main rod 42, and the crushing roller 43 is driven by a motor.

[0052] The improvement lies in that after the power is turned on, the motor drives the main rod 42 coaxially connected to its own output shaft to rotate, and the main rod 42 drives the crushing roller 43 in the crushing chamber 41 to rotate around the main rod 42, thereby crushing the block raw materials into powder (this is the existing technology and will not be elaborated on).

[0053] Since it is necessary to separate the crushed raw materials from the uncrushed raw materials, the blowing assembly 50 includes a mounting groove 51 arranged on the outside of the two ventilation grooves, a fan 52 is arranged in the mounting groove 51 away from the shell 10, and the fan 52 is provided with a filter plate 53 on the side of the inner cavity close to the crushing chamber 41, and a slide plate 54 is slidably connected to the mounting groove 51 close to the shell 10.

[0054] The improvement lies in that when the discharge plate 72 discharges the powdered raw material on its top, the end of the discharge plate 72 away from the lower pressure rod 71 is tilted up, and the slide plate 54 is pulled out from the mounting groove 51. The wind blown out by the fan 52 rotates and blows the powdered raw material in the crushing chamber 41 into the shell 10. In the process, the raw material powder attached to the discharge plate 72 can also be blown off from the top of the discharge plate 72.

[0055] Embodiment 2, this embodiment is based on the content provided in embodiment 1, and its purpose is to provide a method for operating the pulverizing device for food additive production proposed in embodiment 1, and the specific steps are as follows:

[0056] S1. First, put the raw material into the feeding port 11. The inside of the feeding port 11 is blocked by the top of the "U"-shaped plate 23. The top of the "U"-shaped plate 23 is pressed down, and the raw material slides from the gap between the "U"-shaped plate 23 and the inner wall of the feeding port 11 to the top of the inclined screen plate 32. At the same time, the bottom of the "U"-shaped plate 23 drives the inclined screen plate 32 to descend, increasing the height that the raw material passes when falling to the top of the inclined screen plate 32, thereby shaking the powdered raw material off the block raw material;

[0057] S2. The raw materials falling on the top of the inclined screen plate 32 pass through the inclined screen plate 32 and fall onto the discharge plate 72 under the action of their own gravity. The block raw materials slide toward the crushing chamber 41 under the action of their own gravity. In the process of the block raw materials sliding toward the crushing chamber 41, the single-sided gear 63 drives the inclined screen plate 32 to reciprocate up and down along the inner wall of the shell 10 by driving the rack 62. At this time, the block raw materials are bounced up and collide with the inner top wall of the shell 10, so that the block raw materials are crushed;

[0058] S3, the block material after screening and crushing by the inclined screen plate 32 enters the crushing chamber 41, and is crushed into powder by the crushing roller 43. Due to the difference in quality between the powder material and the block material, the powder material is blown into the housing 10 by the wind blown by the fan 52;

[0059] S4. The powdered raw material after being screened by the inclined screen plate 32 falls to the top of the discharge plate 72. When the inclined screen plate 32 is pressed down, the pressing rod 71 is driven to press down one end of the discharge plate 72, and the middle part of the discharge plate 72 is rotatably connected to the shell 10. According to the lever principle, the end of the discharge plate 72 away from the pressing rod 71 will tilt upward, and the powder on the discharge plate 72 will slide off the discharge plate 72 under the action of its own gravity. When the discharge plate 72 removes the powdered raw material on its top, the end of the discharge plate 72 away from the pressing rod 71 tilts up, and the slide plate 54 is pulled out of the mounting groove 51. The wind blown out by the rotation of the fan 52 can blow the powdered raw material in the pulverizing chamber 41 into the shell 10, and can also blow the raw material powder attached to the discharge plate 72 off from the top of the discharge plate 72.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pulverizing device for the production of food additives, characterized in that: It comprises a shell, a feeding port is arranged on the top of the shell, a feeding assembly is arranged in the feeding port, a screening assembly is arranged below the feeding assembly, the screening assembly is slidably connected to the inner wall of the feeding port, and when feeding into the shell, the feeding assembly can press the screening assembly downward; The side of the screening component away from the feeding port is connected to a crushing component, which is used to crush the block raw materials screened by the screening component. A pair of symmetrical ventilation slots are provided at the bottom of the side wall of the crushing component. Blowing components are provided in the two ventilation slots. The blowing components are used to blow the crushed raw material powder into the interior of the shell; A driving assembly is provided at the bottom of the screening assembly, and the driving assembly is used to drive the screening assembly to reciprocate up and down. In the process of driving the screening assembly to reciprocate up and down, the driving assembly can also crush the block materials with larger block diameters. A discharging assembly is provided below the screening assembly, and the discharging assembly is rotatably connected to the inner side wall of the shell. The discharging assembly is used to receive the powdered raw materials after screening. The discharging assembly can automatically discharge the powdered raw materials during the process of pressing the screening assembly downward. During the discharging process, the discharging assembly can also control the powdered raw materials screened in the crushing assembly to enter the shell; The screening assembly comprises a plurality of guide rods fixedly connected to the top wall of the feeding port, the plurality of guide rods are slidably connected with inclined screen plates, and a plurality of second springs are fixedly connected between the inclined screen plates and the top wall of the feeding port; The pulverizing assembly includes a pulverizing chamber; The air blowing assembly includes a mounting groove arranged outside the two ventilation grooves, a fan is arranged in the mounting groove far away from the shell, a wind filter plate is arranged on the inner cavity side of the fan close to the crushing chamber, and a slide plate is slidably connected in the mounting groove close to the shell; The unloading assembly comprises a pressing rod fixedly connected to the bottom of the inclined screen plate and a unloading plate rotatably connected to the slide plate, and the unloading plate is rotatably connected to the inner side wall of the shell body.

2. The pulverizing device for producing food additives according to claim 1, characterized in that: The feeding assembly includes a limit plate fixedly connected between a pair of inner side walls away from the feeding port, a plurality of limit rods fixedly connected to the top of the limit plate, a "U"-shaped plate slidably connected to one end of the limit rods away from the limit plate, and a plurality of first springs fixedly connected between the limit plate and the inner top wall of the "U"-shaped plate.

3. The pulverizing device for producing food additives according to claim 1, characterized in that: A main rod is coaxially connected in the crushing chamber, a crushing roller is fixedly connected to one side of the main rod, and the crushing roller is driven by a motor.

4. The pulverizing device for producing food additives according to claim 1, characterized in that: The driving assembly includes a pair of guide rails fixedly connected to the bottom of the inclined screen plate, both guide rails are slidably connected to the inner wall of the shell, a rack is provided between the two guide rails, the rack is slidably connected to the inner wall of the shell, a single-sided gear is meshed on the side of the rack away from the inner wall of the shell, and the single-sided gear is driven by a motor.

5. A method for operating the pulverizing device for producing food additives as claimed in claim 1, characterized in that: The method comprises the following steps: S1. First, put the raw material into the feeding port. The inside of the feeding port is blocked by the top of the feeding assembly. Press down the top of the feeding assembly, and the raw material slides from the gap between the feeding assembly and the inner wall of the feeding port to the top of the screening assembly. At the same time, the bottom of the feeding assembly drives the screening assembly down, increasing the height that the raw material passes when falling to the top of the screening assembly, thereby shaking the powdered raw material off the block raw material; S2. The raw materials falling on the top of the screening component, under the action of their own gravity, the powdered raw materials pass through the screening component and fall below the screening component, and the block raw materials slide toward the crushing component under the action of their own gravity. In the process of the block raw materials sliding toward the crushing component, the driving component drives the screening component to reciprocate up and down along the inner wall of the shell, at which time the block raw materials are bounced up and collide with the inner top wall of the shell, so that the block raw materials are crushed; S3, the block raw materials after screening and crushing by the screening component enter the crushing component, and the crushing component crushes the block raw materials into powder. Due to the difference in quality between the powder raw materials and the block raw materials, the powder raw materials are blown into the shell by the blowing component; S4. The powdered raw materials screened by the screening component fall to the top of the unloading component. During the downward pressing process of the screening component, the screening component can automatically complete the unloading of the powdered raw materials on the top of the unloading component. At the same time, the unloading component can also open the channel between the crushing component and the shell, and blow the crushed raw materials in the crushing component into the shell through the blowing component. The wind blown by the blowing component can also blow the powder attached to the unloading component away from the top of the unloading component.

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