A food crushing and screening equipment
This food crushing and screening equipment, which utilizes high-speed airflow and reciprocating side plate motion, solves the problem of existing equipment requiring multiple repetitive operations, achieving efficient integrated crushing and screening of raw materials to produce powder that meets standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG JIEXIMA MASCH TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-31
AI Technical Summary
Existing food crushing and screening equipment is a split-type operation, requiring multiple repeated steps, and cannot achieve the crushing standard in one go, so the equipment function is not perfect.
A food crushing and screening device is adopted, which uses high-speed airflow and the reciprocating motion of side plates to realize the integrated processing of multiple impact crushing and screening of raw materials. The material is intercepted and crushed by a constant distance between the side plates and the inner wall of the processing box, generating raw material powder that meets the standards.
It achieves efficient integrated crushing and screening of raw materials, simplifies the operation process, and improves the functionality and crushing effect of the equipment.
Smart Images
Figure CN120460047B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of crushing equipment, and in particular to a food crushing and screening device. Background Technology
[0002] As one of the core pillars of the modern consumer goods sector, the efficiency and sophistication of food processing technology directly impact the quality and market competitiveness of end products. In recent years, with consumers' increasing demands for food diversity, nutrient retention, and texture, as well as the rapid development of emerging categories such as pre-prepared foods and functional foods, the importance of raw material pretreatment has become increasingly prominent. Crushing and screening, as indispensable basic processes in the food processing chain, are widely used in fruit and vegetable products, grain grinding, seasoning production, and dietary fiber extraction. Their processing effectiveness directly determines the efficiency and product quality of subsequent processes such as mixing, drying, and shaping.
[0003] Currently, the crushing and screening of food raw materials involves first crushing the raw materials using crushing structures such as crushing hammers and grinding discs, and then screening them using screening structures such as sieves. This traditional method is a separate process rather than an integrated one. In addition, after the raw materials are screened, large particles need to be crushed again, making it impossible to achieve the crushing standard in one go. Therefore, the traditional method requires multiple repetitive steps, and the equipment is not fully functional. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides a food crushing and screening device, the specific technical solution of which is as follows: The present invention provides a food crushing and screening device, comprising a processing box, a feeding channel and a discharging channel installed on the upper and lower sides of the processing box, a top plate located inside the processing box, and two side plates installed at both ends of the top plate. A variable diameter section is provided between the feeding channel and the processing box. The top plate is close to the variable diameter section, and the top plate and the inner wall of the processing box form a horizontal channel. The side plates and the corresponding inner walls of the processing box form a vertical channel. The feeding channel is used to transport raw materials and high-speed airflow. The top plate reciprocates laterally. One end of the side plate is hinged to the end of the top plate, and the other end of the side plate moves in the vertical direction.
[0005] Based on the above implementation, the far end of the side plate is set as an arc surface, and the shortest distance between the arc surface and the corresponding inner wall of the processing box is constant.
[0006] Based on the above implementation, a fixing groove is provided on one side of the back of the side plate, a support plate is provided in the fixing groove, and the side plate rotates on the support plate, with its rotation axis coinciding with the axis of the arc surface. The end of the support plate extends beyond the fixing groove, and a slider is fixed to the end of the support plate. Each slider is vertically equipped with a guide rail.
[0007] Based on the above implementation, the distance between the arc surface and the corresponding inner wall of the processing box can be adjusted.
[0008] Based on the above implementation, several transverse ridges are provided on the inner wall of the processing box and the side wall of the side plate corresponding to the vertical channel.
[0009] Based on the above implementation, a baffle is provided at the hinge position between the top plate and the side plate.
[0010] Based on the above implementation, an air pipe and a cylinder are connected in the feeding channel. The axial direction of the cylinder is parallel to the width direction of the feeding channel. A main shaft is rotatably installed inside the cylinder. Several partitions are provided on the outer wall of the main shaft, and the several partitions divide the internal space of the cylinder into several storage chambers. The cylinder is connected to a secondary channel for discharging raw materials into the receiving chamber.
[0011] Based on the above implementation, a cover plate is provided on both the front and rear sides of the top plate, and an opening is provided on both the front and rear side walls of the processing box. The cover plate blocks the opening. A sliding body fixedly connected to the cover plate is slidably arranged in the opening. A long groove is provided on the sliding body, and a sliding column is provided in the long groove. The sliding direction of the sliding column in the long groove is perpendicular to the moving direction of the top plate. The processing box is equipped with drive motors on both the front and rear side walls. The output end of the drive motor is equipped with a connecting rod, which is connected to the sliding column. The sliding column is offset from the axis of the drive motor.
[0012] The beneficial effects of this invention are as follows: By utilizing the multiple reversals of high-speed airflow, the raw materials are accelerated and crushed multiple times due to inertia. Furthermore, by maintaining a constant distance between one end of the side plate and the inner wall of the processing chamber, incompletely crushed raw materials can be intercepted, thus achieving screening. Simultaneously, the side plate crushes the raw materials, thereby integrating crushing and screening operations, simplifying the operation, and directly generating standard-compliant raw material powder, thus improving the functionality of the equipment. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic cross-sectional view of the processing box in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the top plate and side plate in an embodiment of the present invention; Figure 5 This is a partial cross-sectional enlarged structural diagram of the side plate in an embodiment of the present invention; Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the central fastening sleeve; Figure 7 yes Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0015] Figure label: 1. Processing box; 2. Feeding channel; 3. Discharge channel; 4. Variable diameter section; 5. Top plate; 6. Side plate; 7. Horizontal channel; 8. Vertical channel; 9. Arc surface; 10. Fixing groove; 11. Support plate; 12. Slider; 13. Guide rail; 14. Horizontal ridge; 15. Rotating column; 16. Adjusting plate; 17. Push-pull rod; 18. Threaded rod; 19. Handwheel; 20. Fastening sleeve; 21. Air pipe; 22. Cylinder; 23. Main shaft; 24. Partition plate; 25. Secondary channel; 26. Feeding motor; 27. Cover plate; 28. Opening; 29. Sliding body; 30. Drive motor; 31. Connecting rod; 32. Sliding column; 33. Long groove; 34. Baffle plate. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0017] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.
[0019] like Figures 1 to 7 As shown, a food crushing and screening device of the present invention includes a processing box 1, a feeding channel 2 and a discharging channel 3 installed on the upper and lower sides of the processing box 1, a top plate 5 located inside the processing box 1 and two side plates 6 installed at both ends of the top plate 5. A variable diameter section 4 is provided between the feeding channel 2 and the processing box 1. The top plate 5 is close to the variable diameter section 4, and the top plate 5 and the inner wall of the processing box 1 form a horizontal channel 7. The side plates 6 and the corresponding inner walls of the processing box 1 form a vertical channel 8. Among them, the feeding channel 2 is used to transport raw materials and high-speed airflow, the top plate 5 moves laterally and reciprocates, one end of the side plate 6 is hinged to the end of the top plate 5, and the other end of the side plate 6 moves in the vertical direction. In this invention, the feeding channel 2 is used to supply high-speed airflow and raw materials. The high-speed airflow accelerates the raw materials, allowing them to enter the processing chamber 1 for crushing. The discharge channel 3 discharges the crushed raw materials. To cooperate with the horizontal channel 7 and vertical channel 8, the feeding channel 2 is flat, which facilitates the feeding of raw materials into the processing chamber 1 in a flat shape, rather than causing them to gather, thus promoting dispersion. The variable diameter section 4 is mainly used to narrow the connection between the feeding channel 2 and the processing chamber 1, thereby accelerating the airflow and the movement speed of the raw materials. The specific shape of the variable diameter section 4 can be as follows: Figure 3 The cone shape shown can also be an arc or other shapes; the top plate 5 and the two side plates 6 form an arc-shaped structure with the opening facing downward. The top plate 5 is horizontal and can move laterally back and forth. The upper surface of the top plate 5 and the top of the inner wall of the processing box 1 form a horizontal channel 7. The outer wall of the side plate 6 and the inner wall of the processing box 1 form a vertical channel 8. The raw materials can move along the horizontal channel 7 and the vertical channel 8. Because the top plate 5 reciprocates laterally and the far end of the side plate 6 moves vertically, the width of the gap between the far end of the side plate 6 and the inner wall of the processing box 1 is constant, that is, the width of the discharge position of the vertical channel 8 is constant. This width can limit the particle size of the raw materials, thereby realizing the screening of the raw materials. When the top plate 5 moves to the left, the top plate 5 pushes the left side plate 6 from the rightward tilting state to the vertical state. At this time, the bottom of the side plate 6 will move downward, that is, the space of the vertical channel 8 becomes smaller, and in the vertical direction, any position on the side plate 6 moves downward, while the top of the side plate 6 remains at a constant height. That is, the side wall of the side plate 6 and the inner wall of the processing box 1 will produce a misaligned movement. When the top plate 5 moves to the right, the left side plate 6 gradually changes from vertical to tilted, the space of the vertical channel 8 becomes larger and accommodates the raw materials. Thus, by using the reciprocating movement of the top plate 5, the left side plate 6 can also reciprocate. Similarly, the right side plate 6 also reciprocates, and the movement timing of the two side plates 6 is staggered. In operation, raw materials and high-speed airflow are fed into the feed channel 2. The high-speed airflow propels the raw materials through the variable diameter section 4, increasing the speed of both the raw materials and the high-speed airflow. Due to inertia, the raw materials impact the top plate 5 and are crushed. Simultaneously, after contacting the top plate 5, the airflow flows laterally and enters the transverse channel 7. The raw materials move laterally within the transverse channel 7. When the airflow enters the vertical channel 8 from the transverse channel 7, the raw materials impact the inner wall of the processing chamber 1 due to inertia, thus undergoing secondary crushing. The crushed raw materials then enter the vertical channel 8 and are further crushed. The top plate 5 moves laterally back and forth. Therefore, when the internal space of the vertical channel 8 decreases, the side plate 6 squeezes and crushes the raw materials in the vertical channel 8. The side plate 6 and the vertical channel 8 move in a staggered manner in the vertical direction, so that the side plate 6 provides a crushing effect for the raw materials and improves the crushing effect. The crushed raw material particles that meet the requirements can be discharged through the gap between the far end of the side plate 6 and the inner wall of the processing box 1. The raw materials that do not meet the standards will be intercepted in the vertical channel 8 and continue to be crushed until they meet the standard requirements, thereby realizing the crushing and screening of raw materials. It should be noted that the airflow velocity changes when it passes through the variable diameter section 4, the horizontal channel 7 and the vertical channel 8. The velocity gradient generated by the velocity change provides shear force to the raw material, thereby breaking the raw material. By utilizing the multiple reversals of high-speed airflow, the raw materials can be accelerated and crushed multiple times due to inertia. Furthermore, by maintaining a constant distance between one end of the side plate 6 and the inner wall of the processing chamber 1, incompletely crushed raw materials can be intercepted, thus achieving screening. Simultaneously, the side plate 6 crushes the raw materials, thereby integrating crushing and screening operations, simplifying the operation, and directly generating standard-compliant raw material powder, thus improving the functionality of the equipment.
[0020] Furthermore, the far end of the side plate 6 is set as an arc surface 9, and the shortest distance between the arc surface 9 and the inner wall of the corresponding processing box 1 is constant; Because the top plate 5 needs to pull the side plate 6 in a reciprocating motion, the tilt angle of the side plate 6 will change periodically. Therefore, if the bottom of the side plate 6 is flat or has another shape, the distance between the bottom of the side plate 6 and the inner wall of the processing box 1 will change. However, if the bottom of the side plate 6 is set to an arc surface 9, such as... Figure 5 As shown, when the bottom of the side plate 6 rotates, the shortest distance between the arc surface 9 and the inner wall of the processing box 1 can remain constant, thereby keeping the particle size of the sieve constant.
[0021] Furthermore, a fixing groove 10 is provided on one side of the back of the side plate 6, and a support plate 11 is provided in the fixing groove 10. The side plate 6 rotates on the support plate 11, and its rotation axis coincides with the axis of the arc surface 9. The end of the support plate 11 extends beyond the fixing groove 10, and the end of the support plate 11 is fixed with a slider 12, and each slider 12 is vertically equipped with a guide rail 13. In this invention, the working surface of the side plate 6 is the front, which is used to cooperate with the inner wall of the processing box 1. The side of the side plate 6 that is away from the inner wall of the processing box 1 is the back. The fixing groove 10 is opened on the back of the side plate 6 and the fixing groove 10 is located near the arc surface 9. The support plate 11, the slider 12 and the guide rail 13 can support and guide the bottom of the side plate 6 to ensure that it can move in the vertical direction and allow the bottom of the side plate 6 to rotate. At the same time, the setting of the fixing groove 10 can ensure that the working surface of the side plate 6 is flat. Since the rotation axis of the side plate 6 on the support plate 11 coincides with the axis of the arc surface 9, the shortest distance between the arc surface 9 and the inner wall of the processing box 1 can remain constant when the side plate 6 moves.
[0022] Furthermore, the distance between the arc surface 9 and the inner wall of the corresponding processing box 1 can be adjusted. When it is necessary to adjust the sieve particle size, the shortest distance between the arc surface 9 and the inner wall of the processing box 1 can be adjusted, that is, the arc surface 9 is allowed to move laterally in the horizontal direction. To achieve the adjustment of position 9 on the arc surface, the following method can be used: Figure 2 , Figure 4 , Figure 5 and Figure 6As shown in the structure, the guide rail 13 slides laterally on the inner wall of the processing box 1. A rotating column 15 is rotatably installed inside the processing box 1. Adjusting discs 16 are provided at both ends of the rotating column 15. Two push-pull rods 17 are eccentrically arranged on the end face of the adjusting disc 16. The push-pull rods 17 are rotatably connected to the corresponding guide rail 13. One end of the rotating column 15 extends to the outside of the processing box 1, and a threaded rod 18 is provided at the end of the rotating column 15. A handwheel 19 is provided at the end of the threaded rod 18. A fastening sleeve 20 is sleeved on the outside of the threaded rod 18. A boss is provided in a local area of the inner wall of the fastening sleeve 20. The boss is provided with threads that are screwed to the threaded rod 18. In this way, when it is necessary to adjust the position of the guide rail 13, the handwheel 19 and the rotating column 15 can be rotated to make the adjusting disc 16 pull the guide rail 13 to move through the push-pull rod 17. The fastening sleeve 20 can fasten the threaded rod 18 to the outer wall of the processing box 1, thereby locking the position of the handwheel 19 and the rotating column 15.
[0023] Furthermore, several transverse ribs 14 are provided on the inner wall of the processing box 1 corresponding to the vertical channel 8 and on the side wall of the side plate 6. When the side plate 6 moves in a misaligned manner with the inner wall of the processing box 1 and crushes the raw materials, in order to improve the crushing effect, the relative movement of several transverse ridges 14 on the side plate 6 and several transverse ridges 14 on the inner wall of the processing box 1 can be used to realize the shear crushing work of the raw materials and improve the crushing effect.
[0024] Furthermore, a baffle 34 is provided at the hinge position between the top plate 5 and the side plate 6; Since the top plate 5 and the side plate 6 are hinged, when the raw material passes through the connection between the top plate 5 and the side plate 6, the powdery raw material is easy to fill the hinge position, which will prevent the top plate 5 and the side plate 6 from rotating normally. Therefore, the baffle 34 can be used to block the hinge position. Since the top plate 5 and the side plate 6 need to move relative to each other, the baffle 34 can be a spring sheet, a shielding cloth, a soft rubber layer, or other structures.
[0025] Furthermore, an air pipe 21 and a cylinder 22 are connected to the feeding channel 2. The axial direction of the cylinder 22 is parallel to the width direction of the feeding channel 2. A main shaft 23 is rotatably arranged inside the cylinder 22. Several partitions 24 are arranged on the outer wall of the main shaft 23, and the partitions 24 divide the internal space of the cylinder 22 into several storage chambers. A secondary channel 25 for discharging raw materials into the receiving chamber is provided on the cylinder 22; like Figure 1 and Figure 3As shown, the air pipe 21 is used to introduce high-speed airflow into the feed channel 2, and the secondary channel 25 is used to supply raw materials. Since several partitions 24 divide the internal space of the cylinder 22, the secondary channel 25 can be isolated from the feed channel 2, preventing air from being discharged through the secondary channel 25. The rotation of the main shaft 23 can be powered by the feeding motor 26. When the main shaft 23 and several partitions 24 rotate, the receiving chamber between two adjacent partitions 24 will move to the position of the secondary channel 25 and receive the raw materials. When the receiving chamber moves to the position of the feed channel 2, the raw materials in the receiving chamber will naturally fall into the feed channel 2, thereby realizing the feeding of raw materials.
[0026] Furthermore, a cover plate 27 is provided on both the front and rear sides of the top plate 5, and an opening 28 is provided on both the front and rear side walls of the processing box 1. The cover plate 27 blocks the opening 28. A sliding body 29 fixedly connected to the cover plate 27 is slidably arranged in the opening 28. A long groove 33 is provided on the sliding body 29. A sliding column 32 is provided in the long groove 33. The sliding direction of the sliding column 32 in the long groove 33 is perpendicular to the moving direction of the top plate 5. A drive motor 30 is provided on both the front and rear side walls of the processing box 1. A connecting rod 31 is provided at the output end of the drive motor 30. The connecting rod 31 is connected to the sliding column 32, and the sliding column 32 is offset from the axis of the drive motor 30. like Figure 1 , Figure 4 and Figure 7 As shown, the baffle 27 is used to block the opening 28 to prevent air from being discharged from the processing box 1 through the opening 28. To improve the sealing performance, a sealing gasket or other sealing structure can be installed on the baffle 27. When the drive motor 30 is running, it can drive the sliding column 32 to make circular motion through the connecting rod 31. The sliding column 32 moves back and forth in the long groove 33 and pushes the sliding body 29 to move laterally. The sliding body 29 can drive the baffle 27 to move laterally, thereby providing power to the top plate 5.
[0027] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A food crushing and screening device, characterized in that, The device includes a processing box, a feeding channel and a discharging channel installed on the upper and lower sides of the processing box, a top plate located inside the processing box, and two side plates installed at both ends of the top plate. A variable diameter section is provided between the feeding channel and the processing box. The variable diameter section is used to narrow the connection between the feeding channel and the processing box. The top plate is close to the variable diameter section, and the top plate and the inner wall of the processing box form a horizontal channel. The side plates and the corresponding inner walls of the processing box form a vertical channel. The feeding channel is used to transport raw materials and high-speed airflow. The top plate reciprocates laterally. One end of the side plate is hinged to the end of the top plate, and the other end of the side plate moves in the vertical direction. The end of the side plate away from the top plate is set as an arc surface, and the shortest distance between the arc surface and the corresponding inner wall of the processing box is constant; A fixing groove is provided on one side of the back of the side plate, and a support plate is provided in the fixing groove. The side plate rotates on the support plate, and its rotation axis coincides with the axis of the arc surface. The end of the support plate extends beyond the fixing groove, and a slider is fixed to the end of the support plate. Each slider is vertically equipped with a guide rail.
2. The food crushing and screening equipment according to claim 1, characterized in that, The distance between the arc surface and the corresponding inner wall of the processing box can be adjusted.
3. The food crushing and screening equipment according to claim 2, characterized in that, Several horizontal ridges are provided on the inner wall of the processing box and the side wall of the side plate corresponding to the vertical channel.
4. The food crushing and screening equipment according to claim 3, characterized in that, A baffle is provided at the hinge position between the top plate and the side plate.
5. The food crushing and screening equipment according to claim 4, characterized in that, An air pipe and a cylinder are connected to the feeding channel. The axis of the cylinder is parallel to the width of the feeding channel. A main shaft is rotatably installed inside the cylinder. Several partitions are provided on the outer wall of the main shaft, and the partitions divide the internal space of the cylinder into several storage chambers. The cylinder is connected to a secondary channel for discharging raw materials into the receiving chamber.
6. The food crushing and screening equipment according to claim 5, characterized in that, Both the front and rear sides of the top plate are provided with shields, and both the front and rear side walls of the processing box are provided with openings. The shields block the openings. A sliding body fixedly connected to the shield is slidably arranged in the opening. A long groove is provided on the sliding body. A sliding column is provided in the long groove. The sliding direction of the sliding column in the long groove is perpendicular to the moving direction of the top plate. The processing box is equipped with drive motors on both the front and rear side walls. The output end of the drive motor is equipped with a connecting rod, which is connected to the sliding column. The sliding column is offset from the axis of the drive motor.