Food screening device
Through low-level feeding design and dust separation technology, the problems of inconvenience in feeding and pre-cleaning in the existing technology are solved, and efficient and uniform food screening effect is achieved.
Patent Information
- Application Number
- CN202422441858.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The feed port of the existing food selection and classification device is located at a high place, and it needs to be manually climbed and loaded, which is inefficient; primary agricultural products need to be cleaned in advance to prevent dust from affecting the color selection effect and inconvenient operation.
Design a food screening device, using low-level feeding, screw conveyor, conveyor belt, blower and exhaust duct to achieve dust separation and removal, avoid pre-treatment, and improve operational convenience and efficiency.
It achieves convenient loading at low places and no pre-mounting of dust and impurities, ensuring color selection effect and improving screening efficiency and uniformity.
Smart Images
Figure CN223249892U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food screening, in particular to a food screening device. Background Art
[0002] During food processing, bad grains and impurities need to be removed to ensure the cleanliness and safety of agricultural products and facilitate color sorting. Patent document CN220611340U discloses a food sorting and classification device comprising a double-layer mounting frame, a collection box disposed at one end of the bottom of the double-layer mounting frame, a recycling box disposed at the other end of the bottom of the double-layer mounting frame, a sorting mechanism disposed within the lower shelf of the double-layer mounting frame, a material trough disposed within one side of the upper shelf of the double-layer mounting frame, a sorting mechanism disposed within the other side of the upper shelf of the double-layer mounting frame, and a feed hopper disposed at the top of the double-layer mounting frame.
[0003] However, the above device has the following problems when in use:
[0004] (1) The feed port of the food selection and classification device is generally located at a higher position. When loading the food, manual climbing is required, and the amount of food loaded at a time should not be too much. Manual loading requires frequent use of a mesh basket, which is inefficient.
[0005] (2) If the food being screened is a primary agricultural product such as peanuts, it needs to be cleaned before being put into use. Otherwise, the bran, dust and other substances mixed in it will enter the interior of the color sorter along with the materials, affecting the optical imaging effect of the color sorter and thus affecting the color sorting activity.
[0006] Therefore, we propose a food screening device to solve the above problems. Utility Model Content
[0007] The purpose of the utility model is to solve the problems existing in the prior art, and a food screening device is proposed, which can directly load materials at a low position, making the operation more convenient. After loading, the dust and impurities inside the raw materials can be processed so that they will not affect the subsequent color sorting effect. No pre-processing is required, and the efficiency is higher.
[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0009] A food screening device comprises a screening part, a screw conveyor and a blanking plate, wherein a mounting frame is fixedly mounted on the screening part, an operating room is fixedly mounted on the mounting frame, and an inlet and an outlet are provided on the operating room;
[0010] The upper hopper and lower hopper are fixedly installed on both sides of the screw conveyor, and the lower hopper corresponds to the feed port;
[0011] The discharge port corresponds to the blanking plate, and the blanking plate is located directly below the discharge port;
[0012] A conveyor belt is provided inside the operating room;
[0013] The interior of the operating room is also fixedly installed with horizontal blowing parts and vertical blowing parts;
[0014] A baffle is fixedly installed inside the operating room, and an exhaust duct is embedded in the baffle, which runs through the operating room.
[0015] Preferably, the transverse blowing member is fixedly mounted on the inner wall of the operating room, the vertical blowing member is located in the gap between the conveyor belts, and the vertical projection of the feed port is located in the gap between the transverse blowing member and the vertical projection of the baffle.
[0016] Preferably, both the horizontal blowing member and the vertical blowing member are installed at an angle, and the air outlet directions of both are toward the shielding plate.
[0017] Preferably, a fixed frame is fixedly installed inside the operating room, a movable plate is slidably installed on the fixed frame, a cylinder is provided on the operating room, the output end of the cylinder is fixedly connected to the movable plate, and a push plate is fixedly installed on the other end of the movable plate through a connecting rod, and the push plate is in direct contact with the conveyor belt.
[0018] Preferably, a guide block is fixedly installed on one side of the fixed frame, the guide block is an arc-shaped structure, and the guide block is also in direct contact with the conveyor belt.
[0019] Preferably, the conveyor belt is a microporous structure.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] (1) The utility model pours raw materials into the upper hopper at a lower position, and the raw materials are discharged through the lower hopper. When the raw materials are transferred, the horizontal blowing parts blow the dust in this link, so that the dust moves, and the raw materials fall normally. Then the exhaust pipe absorbs the gas containing a large amount of dust, thereby achieving a dust removal effect. Directly loading the materials at a lower position is more convenient to operate. After the loading activity, the dust and impurities inside the raw materials can be processed so that they will not affect the effect of color sorting. No pre-processing is required, and the efficiency is higher.
[0022] (2) The utility model is provided with a blanking plate, a conveyor belt, a discharge port, a pushing plate, a cylinder, a fixed frame, a guide block, a movable plate and a connecting rod. The pushing plate can make the raw materials on the conveyor belt fall onto the blanking plate through the discharge port. Since the raw materials are evenly located on the surface of the conveyor belt, the raw materials will also be evenly distributed on the surface of the blanking plate during the falling process, so that all parts of the blanking plate can receive the raw materials, ensuring the consistency of screening at all parts, and can automatically discharge materials at intervals, which is more applicable and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of a food screening device proposed by the present invention;
[0024] Figure 2 This is a schematic diagram of a food screening device proposed in the present invention and a cross-sectional view of the interior of the operating room;
[0025] Figure 3 This is a schematic diagram of the back of the operating room of a food screening device proposed in the present invention;
[0026] Figure 4 This is a schematic diagram of a dust removal component of a food screening device proposed in the present invention;
[0027] Figure 5 This is a schematic diagram of the uniform feeding principle of a food screening device proposed by the present invention.
[0028] In the figure: 1. Screening section; 2. Screw conveyor; 3. Blanking plate; 4. Mounting frame; 5. Operating room; 6. Feed inlet; 7. Upper hopper; 8. Lower hopper; 9. Exhaust pipe; 10. Conveyor belt; 11. Discharge port; 12. Horizontal blowing member; 13. Vertical blowing member; 14. Shielding plate; 15. Pushing plate; 16. Cylinder; 17. Fixed frame; 18. Guide block; 19. Moving plate; 20. Connecting rod. DETAILED DESCRIPTION
[0029] 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.
[0030] See also Figures 1 to 5 A food screening device includes a screening part 1, a screw conveyor 2 and a blanking plate 3. The screening part 1 is fixedly mounted with a mounting frame 4, the mounting frame 4 is fixedly mounted with an operating room 5, and the operating room 5 is provided with an inlet 6 and a discharge port 11;
[0031] An upper hopper 7 and a lower hopper 8 are fixedly installed on both sides of the screw conveyor 2, and the lower hopper 8 corresponds to the feed port 6;
[0032] By pouring the agricultural product raw materials to be screened into the upper hopper 7 at the lower position, the agricultural product raw materials to be screened will move to the upper end under the action of the conveying screw rod inside the screw conveyor 2, and then be discharged through the lower hopper 8. The lower hopper 8 corresponds to the feed port 6 of the operating room 5, so the raw materials will fall directly into the operating room 5 and perform dust removal operations therein.
[0033] The discharge port 11 corresponds to the blanking plate 3, and the blanking plate 3 is located directly below the discharge port 11;
[0034] After the dust and impurity removal operations are completed inside the operating room 5, the raw materials will fall through the discharge port 11 and fall onto the surface of the blanking plate 3. The raw materials can then be transported to the screening part 1, where the optical lens and nozzle assembly inside the screening part jointly complete the screening activity to separate unqualified raw materials from qualified raw materials.
[0035] A conveyor belt 10 is provided inside the operating room 5;
[0036] The raw materials will fall onto the surface of the conveyor belt 10 and then move under the drive of the conveyor belt 10 .
[0037] A horizontal blowing member 12 and a vertical blowing member 13 are also fixedly installed inside the operating room 5;
[0038] The horizontal blowing member 12 and the vertical blowing member 13 are used to generate wind to separate dust and the like from the raw materials, thereby achieving dust removal.
[0039] A shielding plate 14 is fixedly installed inside the operating room 5 , and an exhaust pipe 9 is embedded in the shielding plate 14 . The exhaust pipe 9 runs through the operating room 5 .
[0040] The shielding plate 14 is used to block the flying dust to prevent it from excessive diffusion. The exhaust pipe 9 generates suction so that the gas containing a large amount of dust can be transported through the exhaust pipe 9. The other end of the exhaust pipe 9 is connected to the fan.
[0041] The horizontal blowing member 12 is fixedly installed on the inner wall of the operating room 5, the vertical blowing member 13 is located in the gap between the conveyor belts 10, and the vertical projection of the feed port 6 is located in the gap between the vertical projections of the horizontal blowing member 12 and the baffle 14.
[0042] In the process of transferring the raw materials from the lower hopper 8 to the feed port 6 of the operating chamber 5, the raw materials are in a falling state under the action of gravity. At this time, they are in the best processable state. The horizontal blowing piece 12 blows the dust in this link to move the dust, and the raw materials fall normally. Then the dust will move to the side of the baffle 14, and the exhaust pipe 9 absorbs the gas containing a large amount of dust, thereby achieving a dust removal effect.
[0043] The vertical blowing member 13 is used to further remove dust from the raw materials that fall on the surface of the conveyor belt 10. Since the conveyor belt 10 is in a constantly moving state, the raw materials will not gather, but only form a thin layer. While ensuring the dust removal effect, the uniformity of the material discharge can also be guaranteed.
[0044] The horizontal blowing member 12 and the vertical blowing member 13 are both installed at an angle, and the air outlet directions of both are toward the baffle 14. This design can ensure that the gas containing a large amount of dust moves toward the side of the baffle 14, thereby facilitating absorption by the exhaust pipe 9.
[0045] A fixed frame 17 is fixedly installed inside the operating room 5, and a movable plate 19 is slidably installed on the fixed frame 17. A cylinder 16 is provided on the operating room 5, and the output end of the cylinder 16 is fixedly connected to the movable plate 19. The other end of the movable plate 19 is fixedly installed with a push plate 15 through a connecting rod 20, and the push plate 15 is in direct contact with the conveyor belt 10.
[0046] In order to prevent the raw materials from splashing into the interior of the conveyor belt 10 during unloading, a shielding device (not shown in the figure) can be provided at the edge of the conveyor belt 10 without affecting the operation of the conveyor belt 10 .
[0047] When the appropriate state is reached, the screw conveyor 2 and the conveyor belt 10 stop running, and then the cylinder 16 is started to move the movable plate 19 on the fixed frame 17. The movement of the movable plate 19 can drive the push plate 15 to move, and the push plate 15 can move the raw materials on the conveyor belt 10. Then the raw materials fall onto the blanking plate 3 through the discharge port 11 and move to the inside of the screening part 1 through the blanking plate 3.
[0048] Since the raw materials are evenly distributed on the surface of the conveyor belt 10, they will also be evenly distributed on the surface of the blanking plate 3 during the falling process, so that all parts of the blanking plate 3 can receive the raw materials, ensuring the screening efficiency of the screening part, and can automatically discharge the materials at intervals, which is more applicable and more efficient.
[0049] A guide block 18 is fixedly mounted on one side of the fixing frame 17 . The guide block 18 is an arc-shaped structure and is also in direct contact with the conveyor belt 10 .
[0050] The existence of the guide block 18 allows the raw materials to be concentrated on one side of the conveyor belt 10, thereby reducing the travel distance of the push plate 15 and effectively reducing energy consumption and operating time.
[0051] The conveyor belt 10 has a microporous structure, and the wind generated by the vertical blowing member 13 can smoothly penetrate the conveyor belt 10, thereby separating dust from the raw materials.
[0052] The working process of the present invention is as follows: the agricultural product raw materials to be screened are poured into the upper hopper 7 at a lower position, and then the agricultural product raw materials to be screened are moved to the upper end under the action of the conveying screw rod inside the screw conveyor 2, and then fall onto the surface of the conveyor belt 10 through the lower hopper 8 and the feeding port 6, and then move under the drive of the conveyor belt 10.
[0053] As the raw materials are transferred from the lower hopper 8 to the inlet 6 of the operating chamber 5, they fall under the action of gravity. The horizontal blowing element 12 blows the dust in this process, causing it to move while the raw materials fall normally, thus achieving a dust removal effect. The vertical blowing element 13 can further remove the raw materials that fall on the surface of the conveyor belt 10. The dust then moves to the side of the shielding plate 14, and the exhaust pipe 9 absorbs the air containing a large amount of dust.
[0054] Since the conveyor belt 10 is in a state of continuous movement, during the movement, the raw materials of the guide block 18 are concentrated on one side of the conveyor belt 10. When the raw materials at the initial position move to the end of the operating chamber 5, the screw conveyor 2 and the conveyor belt 10 stop running, and then the cylinder 16 is started to move the movable plate 19 on the fixed frame 17. The movement of the movable plate 19 can drive the push plate 15 to move, and the push plate 15 can move the raw materials on the conveyor belt 10. Then the raw materials fall onto the blanking plate 3 through the discharge port 11, and move to the inside of the screening part 1 through the blanking plate 3. The screening part 1 adopts conventional color sorting technology and is composed of a lighting part, an imaging part, an identification part, an air jet part and a control part. The utility model is not repeated here. The final screening activity is completed by color sorting technology to separate unqualified raw materials from qualified raw materials.
[0055] Since the raw materials are evenly distributed on the surface of the conveyor belt 10, they will also be evenly distributed on the surface of the blanking plate 3 during the falling process, so that all parts of the blanking plate 3 can receive the raw materials, ensuring the screening efficiency of the screening part, and can automatically discharge the materials at intervals, which is more applicable and more efficient.
[0056] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A food screening device, comprising a screening portion (1), a screw conveyor (2) and a blanking plate (3), characterized in that: A mounting frame (4) is fixedly mounted on the screening portion (1), an operating room (5) is fixedly mounted on the mounting frame (4), and an inlet (6) and an outlet (11) are provided on the operating room (5); An upper hopper (7) and a lower hopper (8) are fixedly mounted on both the head and tail sides of the screw conveyor (2), and the lower hopper (8) corresponds to the feed port (6); The discharge port (11) corresponds to the blanking plate (3), and the blanking plate (3) is located directly below the discharge port (11); A conveyor belt (10) is provided inside the operating room (5); A horizontal blowing member (12) and a vertical blowing member (13) are also fixedly installed inside the operating room (5); A baffle plate (14) is fixedly installed inside the operating room (5), and an exhaust pipe (9) is embedded in the baffle plate (14), and the exhaust pipe (9) runs through the operating room (5).
2. A food screening device according to claim 1, characterized in that: The transverse blowing member (12) is fixedly mounted on the inner wall of the operating room (5), the vertical blowing member (13) is located in the gap between the conveyor belts (10), and the vertical projection of the feed port (6) is located in the gap between the vertical projections of the transverse blowing member (12) and the shielding plate (14).
3. A food screening device according to claim 1 or 2, characterized in that: The horizontal blowing member (12) and the vertical blowing member (13) are both installed at an angle, and the air outlet directions of both are toward the shielding plate (14).
4. A food screening device according to claim 1 or 2, characterized in that: A fixed frame (17) is fixedly installed inside the operating room (5), a movable plate (19) is slidably installed on the fixed frame (17), and a push plate (15) is fixedly installed on the other end of the movable plate (19) through a connecting rod (20), and the push plate (15) directly contacts the conveyor belt (10).
5. A food screening device according to claim 4, characterized in that: The conveyor belt (10) has a microporous structure.