A food processing raw material grading and screening machine
By using a combination of a diversion frame and a screening frame with a detachable filter screen in a food processing raw material screening machine, the problem of uneven raw material particle size is solved, precise grading and screening are achieved, and the quality of food processing is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGTAI XIANGRUN FOOD CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-24
Smart Images

Figure CN224542274U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, and in particular to a food processing raw material grading and screening machine. Background Technology
[0002] In the food processing industry, the quality and particle size uniformity of raw materials have a crucial impact on the quality of the final product. Different specifications of food processing raw materials are suitable for different processing procedures and product types. Therefore, grading and screening raw materials before food processing is an essential step. Through grading and screening, raw materials can be separated according to particle size, removing impurities and non-compliant particles, thereby improving the utilization rate of raw materials and ensuring the stability of the food processing process and the consistency of product quality. Chinese patent application CN201920340567.1 discloses a screening mechanism for a food processing plant, including a body, a screening roller, a first discharge hopper, and a second discharge hopper. The screening roller is housed inside the body, and a rotating shaft is located inside the screening roller. A gearbox is located on one side of the rotating shaft, and a baffle is located behind the gearbox. A motor is located on the side of the gearbox away from the body, and a motor support frame is located below the motor. A feed hopper is located above the body, and a transparent cover is located on one side of the feed hopper. The first discharge hopper is located below the body. In this invention, the screening roller is powered by a motor, with speed regulation via a gearbox. The rotating shaft drives the screening roller to rotate. Food samples screened by the screening roller finally fall into a storage bin through the first and second discharge hoppers. This design is simple in structure and has high production efficiency. However, existing screening institutions still have some shortcomings. They cannot accurately grade and screen raw materials, resulting in uneven particle size distribution after screening. There are still many non-compliant particles, which affects the quality of food processing. Summary of the Invention
[0003] In view of the above-mentioned shortcomings in the prior art, this utility model provides a food processing raw material grading and screening machine. Its purpose is to solve the problems of the inability to accurately grade and screen raw materials, resulting in uneven particle size distribution of the screened raw materials and the presence of many non-compliant particles, which affects the quality of food processing. To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: a food processing raw material grading and screening machine, including a support frame, a diversion frame installed at the top of the support frame, a raw material box on one side of the support frame, a feeding mechanism installed on the raw material box, guide rods installed in pairs on the support frame, a screening frame one installed on the guide rod, a screening frame two slidably connected directly below the screening frame one, a screening mechanism installed at the top of one side of the support frame, a guide plate installed on the inner side of the support frame, and a collection box installed directly below the screening frame two; The bottom end of the screening frame is provided with a rectangular groove, a threaded rod is installed on the rectangular groove, a filter screen is fitted on the rectangular groove, and a circular hole matching the threaded rod is provided around the filter screen. The top end of the threaded rod passes through the circular hole and is threadedly connected to a fixing nut. Furthermore, the screening mechanism includes a mounting plate fixedly installed on the top of one side of the support frame. A drive motor is mounted on the mounting plate, and a turntable is driven to the output end of the drive motor. One end of both the screening frame one and the screening frame two are connected to a drive frame. A sliding groove is provided on the drive frame, and a metal rod is installed on the turntable. The metal rod is slidably connected to the sliding groove. Furthermore, the feeding mechanism includes a feeding cylinder fixedly installed at the top of the raw material box, a second drive motor is installed at the top of the feeding cylinder, the output end of the second drive motor extends into the interior of the feeding cylinder and is connected to an auger for transmission, a discharge pipe is installed at the top of one side of the feeding cylinder, a discharge port is installed at the bottom of the discharge pipe, and a discharge port is installed on the raw material box. Furthermore, inclined plates are installed on both sides of the inside of the diversion frame, and a diversion plate is installed on the diversion frame. Furthermore, a rectangular groove is provided at the top of the guide rod, and auxiliary wheels are connected to the bottom of both the screening frame one and the screening frame two. The auxiliary wheels are slidably connected to the rectangular groove two. Furthermore, the first screening frame and the second screening frame have the same structure. The beneficial effects of this utility model are as follows: This utility model discloses a food processing raw material grading and screening machine. It comprises two identical screening frames, Frame 1 and Frame 2, arranged vertically. Frame 1 and Frame 2 are each equipped with a filter screen of different specifications. The filter screens are detachably installed on the screening frames via a threaded rod, a circular hole, and a fixing nut. In practical use, different filter screens with different apertures can be flexibly replaced according to different food processing raw materials and required particle size specifications. When the raw material passes through Screen 1, larger particles are retained, while smaller particles pass through the filter screen and fall into Screen 2 below. In Screen 2, the smaller particles are further screened, thereby achieving precise grading and screening of the raw materials. This effectively solves the problem of the inability to precisely grade and screen raw materials in existing technologies, resulting in a more uniform particle size distribution after screening, greatly reducing the presence of non-compliant particles, and significantly improving the quality of food processing. Attached Figure Description
[0004] Figure 1 This is a front view of a food processing raw material grading and screening machine according to the present invention; Figure 2 This is a schematic diagram of the structure of a food processing raw material grading and screening machine according to the present invention; Figure 3 This is a schematic diagram of the feeding mechanism of a food processing raw material grading and screening machine according to the present invention. Figure 4 This is an enlarged view of the screening mechanism of a food processing raw material grading and screening machine according to the present invention; Figure 5 This is a schematic diagram of the screening mechanism of a food processing raw material grading and screening machine according to the present invention; Figure 6 This is a cross-sectional view of the flow divider frame of a food processing raw material grading and screening machine according to the present invention; Figure 7 This is an enlarged view of the filter screen of a food processing raw material grading and screening machine according to the present invention; Figure 8 This utility model relates to a food processing raw material grading and screening machine. Figure 1 Enlarged view of point A in the middle. Reference table for attached figures: 1. Support frame; 2. Diverter frame; 201. Diverter plate; 202. Inclined plate; 3. Raw material box; 4. Feeding mechanism; 401. Feeding cylinder; 402. Drive motor II; 403. Screwdriver; 404. Discharge pipe; 405. Discharge port; 406. Discharge outlet; 5. Guide rod; 501. Rectangular trough II; 502. Auxiliary wheel; 6. Screening frame I; 601. Rectangular trough I; 602. Threaded rod; 603. Filter screen; 604. Circular hole; 605. Fixing nut; 7. Screening frame II; 8. Screening mechanism; 801. Mounting plate; 802. Drive motor I; 803. Turntable; 804. Drive frame; 805. Slide chute; 806. Metal rod; 9. Collection box; 10. Guide plate. Detailed Implementation
[0005] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively. To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. like Figures 1 to 8 As shown, a food processing raw material grading and screening machine includes a support frame 1, a diversion frame 2 installed at the top of the support frame 1, a raw material box 3 on one side of the support frame 1, a feeding mechanism 4 installed on the raw material box 3, guide rods 5 installed in pairs on the support frame 1, a screening frame 6 installed on the guide rods 5, a screening frame 7 slidably connected directly below the screening frame 6, a screening mechanism 8 installed at the top of one side of the support frame 1, a guide plate 10 installed on the inner side of the support frame 1, and a collection box 9 installed directly below the screening frame 7. A rectangular groove 601 is provided at the bottom of the screening frame 6. A threaded rod 602 is installed on the rectangular groove 601. A filter screen 603 is fitted on the rectangular groove 601. Circular holes 604 matching the threaded rod 602 are provided around the filter screen 603. The top of the threaded rod 602 passes through the circular holes 604 and is threadedly connected to a fixing nut 605. With the above scheme, both screening frames 6 and 7 are equipped with detachable filter screens 603. Through the cooperation of threaded rods 602, circular holes 604 and fixing nuts 605, filter screens 603 of different specifications can be easily replaced. In the actual screening process, the raw materials first enter screening frame 6, where larger particles are intercepted, and smaller particles pass through the filter screen 603 and fall into screening frame 7 for further screening, thus achieving graded screening of the raw materials. Compared with the traditional single screening method, this graded screening method greatly improves the screening efficiency and can quickly distinguish raw materials of different particle sizes, meeting the different requirements of food processing for raw material particle size. The screening mechanism 8 includes a mounting plate 801 fixedly installed on the top of one side of the support frame 1. A drive motor 802 is mounted on the mounting plate 801. The output end of the drive motor 802 is connected to a turntable 803. One end of the screening frame 6 and the screening frame 7 are both connected to a drive frame 804. A sliding groove 805 is provided on the drive frame 804. A metal rod 806 is mounted on the turntable 803. The metal rod 806 is slidably connected to the sliding groove 805. Through the above scheme, the drive motor 802 drives the turntable 803 to rotate, and the metal rod 806 on the turntable 803 moves in a circular motion. Since the metal rod 806 is slidably connected to the slide groove 805 on the drive frame 804, the metal rod 806 will push the drive frame 804 to reciprocate during the circular motion, thereby driving the screening frame 6 and the screening frame 7 to reciprocate on the guide rod 5, so as to realize the screening of raw materials. The feeding mechanism 4 includes a feeding cylinder 401 fixedly installed at the top of the raw material box 3. A second drive motor 402 is installed at the top of the feeding cylinder 401. The output end of the second drive motor 402 extends into the interior of the feeding cylinder 401 and is connected to an auger 403 for transmission. A discharge pipe 404 is installed on the top of one side of the feeding cylinder 401. A discharge port 405 is installed at the bottom end of the discharge pipe 404. A discharge port 406 is installed on the raw material box 3. With the above scheme, after the raw material enters the feeding cylinder 401 from the discharge port 406 of the raw material box 3, it is stably and quickly transported to the diversion frame 2 through the discharge pipe 404 and discharge port 405 under the push of the auger 403. This not only improves the feeding speed and reduces the labor intensity of manual feeding, but also ensures the continuity and stability of feeding, and avoids the problem of reduced screening effect caused by uneven feeding. Inclined plates 202 are installed on both sides of the inside of the diversion frame 2, and a diversion plate 201 is installed on the diversion frame 2. Through the above scheme, when the raw materials enter the diversion frame 2 through the feeding mechanism 4, the inclined plate 202 and the diversion plate 201 guide and disperse the raw materials, so that the raw materials are evenly distributed on the screening frame 6, avoiding local accumulation of raw materials on the screening frame 6, ensuring that the filter screen 603 in each part can fully play its screening role, thereby improving the screening accuracy, reducing the mixing of non-compliant particles, and providing high-quality raw materials for food processing. The top of the guide rod 5 is provided with a rectangular groove 501, and the bottom of both the screening frame 6 and the screening frame 7 are connected to auxiliary wheels 502, which are slidably connected to the rectangular groove 501. With the above scheme, the auxiliary wheel 502 slides in the rectangular groove 501, providing stable guidance for the operation of the screening frame, reducing shaking and deviation, making the screening frame run more smoothly and stably, which helps to ensure the accuracy and reliability of the screening process, improve the screening quality, and extend the service life of the equipment. Screening frame 6 and screening frame 7 have the same structure. Through the above scheme, screening frame 6 and screening frame 7 have the same structure, thereby achieving precise grading and screening of raw materials. This effectively solves the problem that existing technologies cannot accurately grade and screen raw materials. Qualified raw materials after screening by screening frames 6 and 7 fall into collection box 9 under the guidance of guide plate 10. Collection box 9 can conveniently collect and transfer the screened raw materials, facilitating subsequent food processing steps. The above description is only a preferred embodiment of this utility model patent and is not intended to limit this utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model patent should be included within the protection scope of this utility model patent.
Claims
1. A food processing raw material grading and screening machine, characterized in that, Includes a support frame (1), a diversion frame (2) installed at the top of the support frame (1), a raw material box (3) on one side of the support frame (1), a feeding mechanism (4) installed on the raw material box (3), a pair of guide rods (5) installed on the support frame (1), a screening frame one (6) installed on the guide rod (5), a screening frame two (7) slidably connected directly below the screening frame one (6), a screening mechanism (8) installed at the top of one side of the support frame (1), a guide plate (10) installed on the inner side of the support frame (1), and a collection box (9) installed directly below the screening frame two (7). The bottom end of the screening frame (6) is provided with a rectangular groove (601), a threaded rod (602) is installed on the rectangular groove (601), a filter screen (603) is sleeved on the rectangular groove (601), and a circular hole (604) matching the threaded rod (602) is provided around the filter screen (603). The top end of the threaded rod (602) is threaded through the circular hole (604) and connected to a fixing nut (605).
2. The food processing raw material grading and screening machine according to claim 1, characterized in that: The screening mechanism (8) includes a mounting plate (801) fixedly installed on the top of one side of the support frame (1). A drive motor (802) is installed on the mounting plate (801). The output end of the drive motor (802) is connected to a turntable (803). One end of the screening frame (6) and the screening frame (7) are both connected to a drive frame (804). A sliding groove (805) is provided on the drive frame (804). A metal rod (806) is installed on the turntable (803). The metal rod (806) is slidably connected to the sliding groove (805).
3. The food processing raw material grading and screening machine according to claim 1, characterized in that: The feeding mechanism (4) includes a feeding cylinder (401) fixedly installed at the top of the raw material box (3). A second drive motor (402) is installed at the top of the feeding cylinder (401). The output end of the second drive motor (402) extends into the inside of the feeding cylinder (401) and is connected to an auger (403). A discharge pipe (404) is installed on the top of one side of the feeding cylinder (401). A discharge port (405) is installed at the bottom of the discharge pipe (404). A discharge port (406) is installed on the raw material box (3).
4. The food processing raw material grading and screening machine according to claim 1, characterized in that: Inclined plates (202) are installed on both sides of the inside of the diversion frame (2), and a diversion plate (201) is installed on the diversion frame (2).
5. A food processing raw material grading and screening machine according to claim 1, characterized in that: The top of the guide rod (5) is provided with a rectangular groove (501), and the bottom ends of the screening frame (6) and the screening frame (7) are both connected to auxiliary wheels (502), and the auxiliary wheels (502) are slidably connected to the rectangular groove (501).
6. The food processing raw material grading and screening machine according to claim 1, characterized in that: The first screening frame (6) and the second screening frame (7) have the same structure.