Food crushing and screening equipment

Abstract

The invention relates to the technical field of crushing equipment, in particular to food crushing and screening equipment which comprises a treatment box, a feeding channel, a discharging channel, a top plate and two side plates, wherein the feeding channel and the discharging channel are installed on the upper side and the lower side of the treatment box, the top plate is located in the treatment box, and the two side plates are installed at the two ends of the top plate. A reducing part is arranged between the feeding channel and the treatment box, and the top plate is close to the reducing part; by means of multiple times of reversing flowing of high-speed air flow, raw materials can be accelerated and meanwhile subjected to multiple times of impact smashing due to inertia, the distance between one end of each side plate and the inner wall of the treatment box is set to be constant, the raw materials which are not thoroughly smashed can be intercepted, and therefore screening work is achieved; and the side plates synchronously crush the raw materials, so that the crushing work and the screening work are integrally carried out, the operation mode is simplified, raw material powder meeting the standard can be directly generated, and the functionality of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing equipment, in particular to food crushing and screening equipment. Background Art

[0002] As one of the core pillars of the modern consumer goods sector, the food industry's processing technology efficiency and refinement directly impact the quality and market competitiveness of end products. In recent years, with increasing consumer demand for food diversity, nutrient retention, and texture and taste, as well as the rapid development of emerging categories such as prepared foods and functional foods, the importance of raw material pretreatment has become increasingly prominent. Crushing and screening, as essential foundational processes in the food processing chain, are widely used in fruit and vegetable preparation, grain grinding, seasoning production, dietary fiber extraction, and other fields. Their process performance directly determines the efficiency and product quality of subsequent mixing, drying, and molding processes.

[0003] Currently, the crushing and screening of food raw materials is firstly crushed by crushing structures such as crushing hammers and grinding discs, and then screened by screening structures such as screens to complete the crushing and screening work. That is, the traditional processing method is a split type rather than an integrated processing method. In addition, after the raw material screening is completed, the large-particle raw materials will be crushed again, and the crushed raw materials cannot meet the crushing standards at one time. Therefore, the traditional operation requires multiple repeated steps, and the equipment function is not perfect. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a food crushing and screening device, the specific technical solution adopted by the present invention is: A food crushing and screening device of the present invention comprises a processing box, a feed channel and a discharge 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 reducing portion is provided between the feed channel and the processing box, the top plate is close to the reducing portion, and the top plate and the inner wall of the processing box form a horizontal channel, and the side plates and the corresponding inner walls of the processing box form a vertical channel; The feed channel is used to transport raw materials and high-speed airflow, the top plate moves back and forth 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 a vertical direction.

[0005] Based on the above implementation, the distal end of the side plate is configured 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 opened on one side of the back side of the side plate, a support plate is arranged in the fixing groove, and 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, and each slider is vertically provided 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, a plurality of 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 blocking piece is provided at the hinged position between the top plate and the side plate.

[0010] Based on the above embodiment, the feed channel is connected to an air pipe and a cylinder, the axis direction of the cylinder is parallel to the width direction of the feed channel, a main shaft is rotatably arranged in the cylinder, and a plurality of partitions are provided on the outer wall of the main shaft, and the plurality of partitions divide the internal space of the cylinder into a plurality of receiving chambers; The cylinder is connected with a secondary channel for discharging raw materials into the receiving chamber.

[0011] Based on the above implementation, shields are provided on the front and rear sides of the top plate, and openings are provided on the front and rear side walls of the processing box. The shields block the openings, and a sliding body fixedly connected to the shield is slidably provided 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; A driving motor is provided on both the front and rear side walls of the processing box. A connecting rod is provided at the output end of the driving motor. The connecting rod is connected to the sliding column, and the sliding column deviates from the axis of the driving motor.

[0012] The beneficial effects of the present invention are: By utilizing multiple reversing flows of high-speed airflow, the raw materials can be accelerated and crushed multiple times due to inertia. By using the constant setting of the distance between one end of the side plate and the inner wall of the processing box, the raw materials that are not completely crushed can be intercepted, thereby realizing screening work, and the side plate simultaneously crushes the raw materials, thereby realizing the integration of crushing and screening work, simplifying the operation method, and can directly generate raw material powder that meets the standards, thereby improving the functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 yes Figure 1 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 2 is a schematic structural diagram of the top plate and side plates in an embodiment of the present invention; Figure 5 This is a schematic diagram of a partially enlarged cross-section of a side panel in an embodiment of the present invention; Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle fastening sleeve; Figure 7 yes Figure 2 Schematic diagram of the locally enlarged structure at point A in the middle.

[0015] Reference numerals: 1. Processing box; 2. Feed channel; 3. Discharge channel; 4. Variable diameter part; 5. Top plate; 6. Side plate; 7. Horizontal channel; 8. Vertical channel; 9. Arc surface; 10. Fixed groove; 11. Support plate; 12. Slider; 13. Guide rail; 14. Horizontal edge; 15. Rotating column; 16. Adjusting disk; 17. Push-pull rod; 18. Threaded rod; 19. Handwheel; 20. Fastening sleeve; 21. Air pipe; 22. Cylinder; 23. Spindle; 24. Partition; 25. Auxiliary channel; 26. Feeding motor; 27. Shield; 28. Opening; 29. Sliding body; 30. Driving motor; 31. Connecting rod; 32. Sliding column; 33. Long groove; 34. Baffle. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present 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 feed channel 2 and a discharge 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 reducing portion 4 is provided between the feed channel 2 and the processing box 1, the top plate 5 is close to the reducing portion 4, and the top plate 5 and the inner wall of the processing box 1 form a horizontal channel 7, and the side plates 6 and the corresponding inner walls of the processing box 1 form a vertical channel 8; The feed channel 2 is used to transport raw materials and high-speed airflow, the top plate 5 reciprocates horizontally, 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 the present invention, the feed channel 2 is used to supply high-speed airflow and raw materials. The high-speed airflow can be used to accelerate the raw materials, so that the raw materials enter the processing box 1 and are crushed. The discharge channel 3 is used to discharge the crushed raw materials. In order to cooperate with the horizontal channel 7 and the vertical channel 8, the shape of the feed channel 2 is flat, which can facilitate the raw materials to be fed into the processing box 1 in a flat shape, rather than gathering the raw materials, making it convenient to disperse the raw materials. The diameter-changing portion 4 is mainly used to converge the connection position of the feed channel 2 and the processing box 1 to narrow the channel, thereby accelerating the airflow and the moving speed of the raw materials. The specific shape of the diameter-changing portion 4 can be as follows Figure 3 The cone shown may also be an arc or other shape; the top plate 5 and the two side plates 6 form an arched structure with the opening facing downward, the top plate 5 is horizontal and can perform transverse reciprocating motion, a transverse channel 7 is formed between the upper surface of the top plate 5 and the top of the inner wall of the processing box 1, and a vertical channel 8 is formed between the outer wall of the side plate 6 and the inner wall of the processing box 1, and the raw materials can move along the transverse channel 7 and the vertical channel 8; When the top plate 5 moves to the left, the top plate 5 pushes the left side plate 6 to gradually rotate from the right inclined 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 position, that is, the side wall of the side plate 6 and the inner wall of the processing box 1 will produce a staggered movement. When the top plate 5 moves to the right, the left side plate 6 gradually changes from vertical to inclined, the space of the vertical channel 8 becomes larger and stores the raw materials. The reciprocating movement of the top plate 5 enables the left side plate 6 to also reciprocate. Similarly, the right side plate 6 also reciprocates, and the movement timings of the two side plates 6 are staggered. During use, the raw material and the high-speed airflow are transported into the feed channel 2, and the high-speed airflow pushes the raw material through the diameter-reducing portion 4 area. The movement speed of the raw material and the high-speed airflow is faster. The raw material hits the top plate 5 due to inertia and is crushed. At the same time, after the airflow contacts the top plate 5, it flows horizontally to the left and right and enters the horizontal channel 7. The raw material moves horizontally in the horizontal channel 7. When the airflow enters the vertical channel 8 from the horizontal channel 7, the raw material hits the inner wall of the processing box 1 due to inertia, thereby performing a secondary crushing process on the raw material. The crushed raw material enters the vertical channel 8 and is crushed by The top plate 5 performs a horizontal reciprocating motion. Therefore, when the internal space of the vertical channel 8 is reduced, the side plates 6 squeeze and crush the raw materials in the vertical channel 8. In addition, the side plates 6 and the vertical channel 8 are displaced in the vertical direction, so that the side plates 6 provide a crushing effect for the raw materials, thereby improving the crushing effect. After crushing, the 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, while 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 achieving the crushing and screening of the raw materials. It should be noted that the airflow velocity changes when it flows through the diameter-reducing portion 4, the transverse 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 multiple reversing flows of high-speed airflow, the raw materials can be accelerated and crushed multiple times due to inertia. By using the constant setting of the distance between one end of the side plate 6 and the inner wall of the processing box 1, the raw materials that are not completely crushed can be intercepted, thereby realizing screening work, and the side plate 6 simultaneously crushes the raw materials, thereby realizing the integration of crushing and screening work, simplifying the operation method, and can directly generate raw material powder that meets the standards, thereby improving the functionality of the equipment.

[0020] Furthermore, the distal end of the side plate 6 is configured 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; Since the top plate 5 needs to pull the side plate 6 to perform reciprocating motion, the inclination angle of the side plate 6 will change periodically. Therefore, if the shape of the bottom of the side plate 6 is a plane or other shape, the distance between the bottom of the side plate 6 and the inner wall of the processing box 1 will change. If the shape of the bottom of the side plate 6 is set to a circular 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 be kept constant, thereby making the sieved particle size constant.

[0021] Furthermore, a fixing groove 10 is provided on one side of the back of the side plate 6, a support plate 11 is provided in the fixing groove 10, and 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 a slider 12 is fixed to the end of the support plate 11, and each slider 12 is vertically provided with a guide rail 13; In the present invention, the working surface of the side panel 6 is the front surface, which is used to cooperate with the inner wall of the processing box 1. The side of the side panel 6 that faces away from the inner wall of the processing box 1 is the back surface. The fixing groove 10 is opened on the back surface of the side panel 6, and the fixing groove 10 is located close to 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 panel 6 to ensure that it can move in the vertical direction and allow the bottom of the side panel 6 to rotate. At the same time, the setting of the fixing groove 10 can ensure that the working surface of the side panel 6 is flat; since the rotation axis of the side panel 6 on the support plate 11 coincides with the axis of the arc surface 9, when the side panel 6 moves, the shortest distance between the arc surface 9 and the inner wall of the processing box 1 can be kept constant.

[0022] Furthermore, the distance between the arc surface 9 and the inner wall of the corresponding processing box 1 can be adjusted; When the screening particle size needs to be adjusted, 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 horizontally; To adjust the position of the arc surface 9, the following method can be used: Figure 2 、 Figure 4 、 Figure 5 and Figure 6The structure shown in FIG1 is that the guide rail 13 slides horizontally on the inner wall of the processing box 1, and a rotating column 15 is rotatably provided in the processing box 1. Adjustment disks 16 are provided at both ends of the rotating column 15. Two push-pull rods 17 are relatively eccentrically provided on the end surface of the adjusting disk 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 provided on the outer side of the threaded rod 18. A boss is provided in a local area of the inner wall of the fastening sleeve 20, and a thread screwed connection with the threaded rod 18 is provided on the boss. In this way, when the position of the guide rail 13 needs to be adjusted, the handwheel 19 and the rotating column 15 can be rotated to make the adjusting disk 16 pull the guide rail 13 to move through the push-pull rod 17; the setting of 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, a plurality of transverse ridges 14 are provided on the inner wall of the processing box 1 and the side wall of the side plate 6 corresponding to the vertical channel 8; When the side plate 6 and the inner wall of the processing box 1 are displaced and the raw materials are crushed, in order to improve the crushing effect, the relative movement of several transverse edges 14 on the side plate 6 and several transverse edges 14 on the inner wall of the processing box 1 can be utilized to achieve shear-like crushing of the raw materials and improve the crushing effect.

[0024] Furthermore, a baffle 34 is provided at the hinged 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 position of the top plate 5 and the side plate 6, the powdered raw material is easily filled in the hinge position, which will cause the top plate 5 and the side plate 6 to be unable to rotate 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 structure such as a spring, a cloth, or a soft rubber layer.

[0025] Furthermore, the feed channel 2 is connected to an air pipe 21 and a cylinder 22. The axis of the cylinder 22 is parallel to the width of the feed channel 2. A main shaft 23 is rotatably provided in the cylinder 22. A plurality of partitions 24 are provided on the outer wall of the main shaft 23. The partitions 24 divide the internal space of the cylinder 22 into a plurality of receiving chambers. The cylinder 22 is connected to a secondary channel 25 for discharging raw materials into the receiving chamber; 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 auxiliary channel 25 is used to supply raw materials. Since a number of partitions 24 separate the internal space of the cylinder 22, the auxiliary channel 25 can be isolated from the feed channel 2 to prevent air from being discharged through the auxiliary channel 25. The rotation of the main shaft 23 can be powered by the feeding motor 26. When the main shaft 23 and a number of partitions 24 rotate, the storage chamber between the two adjacent partitions 24 will move to the position of the auxiliary channel 25 and receive the raw materials. When the storage chamber moves to the position of the feed channel 2, the raw materials in the storage chamber will naturally fall into the feed channel 2, thereby realizing the feeding of the raw materials.

[0026] Furthermore, shields 27 are provided on both the front and rear sides of the top plate 5, and openings 28 are provided on the front and rear side walls of the processing box 1. The shields 27 block the openings 28. A sliding body 29 fixedly connected to the shield 27 is slidably provided in the opening 28. The sliding body 29 has a long groove 33, and a sliding post 32 is provided in the long groove 33. The sliding direction of the sliding post 32 in the long groove 33 is perpendicular to the moving direction of the top plate 5. A drive motor 30 is provided on 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 a 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 the air in the processing box 1 from being discharged through the opening 28. In order 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 perform circular motion through the connecting rod 31. The sliding column 32 reciprocates 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 for the top plate 5.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A food crushing and screening equipment, characterized in that: The invention comprises a processing box, a feed channel and a discharge 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 reducing portion is provided between the feed channel and the processing box, the top plate is close to the reducing portion, and the top plate and the inner wall of the processing box form a horizontal channel, and the side plates and the corresponding inner walls of the processing box form a vertical channel; The feed 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 a vertical direction.

2. A food crushing and screening device according to claim 1, characterized in that: The distal end of the side plate is configured as an arc surface, and the shortest distance between the arc surface and the corresponding inner wall of the processing box is constant.

3. The food crushing and screening equipment according to claim 2, characterized in that: 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, 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, and each slider is vertically provided with a guide rail.

4. The food crushing and screening equipment according to claim 3, characterized in that: The distance between the arc surface and the corresponding inner wall of the processing box can be adjusted.

5. The food crushing and screening equipment according to claim 4, characterized in that: A plurality of 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.

6. The food crushing and screening equipment according to claim 5, characterized in that: A blocking piece is provided at a hinged position between the top plate and the side plate.

7. The food crushing and screening equipment according to claim 6, characterized in that: The feed channel is connected to an air pipe and a cylinder, the axis of the cylinder is parallel to the width of the feed channel, a main shaft is rotatably arranged in the cylinder, and a plurality of partitions are arranged on the outer wall of the main shaft, and the partitions divide the internal space of the cylinder into a plurality of receiving chambers; The cylinder is connected with a secondary channel for discharging raw materials into the receiving chamber.

8. The food crushing and screening equipment according to claim 7, characterized in that: Shields are provided on both the front and rear sides of the top plate, and openings are provided on the front and rear side walls of the processing box. The shields block the openings, and a sliding body fixedly connected to the shields is slidably provided 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; A driving motor is provided on both the front and rear side walls of the processing box. A connecting rod is provided at the output end of the driving motor. The connecting rod is connected to the sliding column, and the sliding column deviates from the axis of the driving motor.

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