Food detecting and packaging equipment

Abstract

The invention discloses food detecting and packaging equipment which comprises a conveyor, a supporting frame is fixedly connected to the bottom of the conveyor, fixable rolling wheels are fixedly connected to the bottom of the supporting frame, a box door is hinged to the top of a screening box, and a screening and separating mechanism is arranged on the inner wall of the screening box. By arranging the screening and combining mechanism, food particles are continuously pushed, particles falling on the screening and combining mechanism are more uniformly and quickly pushed, and more food particles pass through screening holes, so that the screening efficiency is improved, the problem of mutual extrusion and blockage of the food particles is reduced, and the screening efficiency is improved on the basis of vibration. And along with opening and closing rotation of the opening and closing plate, the food particles roll back and forth on the opening and closing plate and the sliding plate, so that the food particles are uniformly laid on the opening and closing plate, and the falling efficiency of the screening holes is utilized to the maximum extent.

Description

Technical Field

[0001] This invention relates to the field of food testing technology, specifically to a food testing and packaging device. Background Technology

[0002] In a broad sense, food inspection refers to a discipline that studies and evaluates the quality of food and its changes. Based on some basic theories of physics, chemistry, and biochemistry and various technologies, it inspects the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products in accordance with established technical standards, such as international and national food hygiene / safety standards, to ensure that the products are of qualified quality.

[0003] Referring to the agricultural product crushing equipment described in patent application CN 106799353 A, specifically a food raw material screening machine, it includes a screening machine body, a feed inlet at the top of the screening machine body, a vibrating motor frame on the inner wall of the screening machine body, a vibrating motor on the surface of the vibrating motor frame, and the surface of the vibrating motor connected to the screen via a drive shaft. A first discharge port, a second discharge port, and a third discharge port are respectively opened on the side of the screening machine body. A first partition is provided at one end of the first discharge port, and the first partition is fixedly connected to the inner wall of the screening machine body via a fixed shaft. A motor frame is provided on the other side of the screening machine body, and a motor is provided on the surface of the motor frame.

[0004] Currently, when testing and packaging food, it is necessary to conduct detailed inspections on the particle size of the food. Furthermore, during the sieving and filtering of food particles, it is easy for the particles to clump together, adhere, and be squeezed into the sieve holes due to moisture generated during transportation and storage, which limits work efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a food testing and packaging device that solves the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a food testing and packaging equipment, including a conveyor, a screening box fixedly connected to the bottom of the conveyor, a support frame fixedly connected to the bottom of the screening box, a fixed roller fixedly connected to the bottom of the support frame, a door hinged to the top of the screening box, and a screening opening and closing mechanism provided on the inner wall of the screening box.

[0007] The screening and separating mechanism includes:

[0008] Rotating rod A is a circular rod-shaped structure. One end of rotating rod A is rotatably connected to one side of the inner wall of the screening box, and the other end of rotating rod A is fixedly connected to roller A. The bottom of roller A contacts the top of the conveyor. A connecting rod is fixedly connected to the outer wall of roller A, and a rotating sleeve is rotatably connected to the outer wall of the connecting rod. Rotating rod A is used to support and limit the movement of roller A.

[0009] Roller B has a rotating rod B fixedly connected to its inner wall, a bearing sleeve rotatably connected to its outer wall, a fixed rod fixedly connected to its outer wall, one end of the fixed rod being fixedly connected to the inner wall of the screening box, a hinge rod hinged to the outer wall of the rotating sleeve, a rotating ball fixedly connected to one end of the hinge rod, a connecting seat rotatably connected to the outer wall of the rotating ball, and an opening and closing plate fixedly connected to the outer wall of the connecting seat. Roller B serves to support and stabilize roller A through the connection of the connecting rod.

[0010] Preferably, a rotating shaft is fixedly connected to the outer wall of the opening and closing plate, the outer wall of the rotating shaft is rotatably connected to the inner wall of the screening box, a sliding plate A is slidably connected to the inner wall of the opening and closing plate, screening holes are opened on both the sliding plate A and the inner wall of the opening and closing plate, and there are two sliding plates A, with a circular rod rotatably connected to one side of the two sliding plates A to connect the two sliding plates A.

[0011] Preferably, a slide bar is fixedly connected to the outer wall of the opening and closing plate, a sliding plate B is slidably connected to the outer wall of the slide bar, an elastic rope is fixedly connected to the outer wall of the sliding plate B, one end of the elastic rope is fixedly connected to the outer wall of the rotating shaft, a counterweight is fixedly connected to the outer wall of the sliding plate B, a stop block is fixedly connected to one end of the slide bar, and a separation mechanism is provided on the outer wall of the opening and closing plate.

[0012] Preferably, the separation mechanism includes a threaded rod, the outer wall of the opening and closing plate is fixedly connected to the outer wall of the threaded rod, the outer wall of the threaded rod is threadedly connected to an internal threaded sleeve, the outer wall of the internal threaded sleeve is fixedly connected to a separation lever plate, and the outer wall of the internal threaded sleeve is rotatably connected to two separation bars. One end of the separation bar on the left side is fixedly connected to a long plate, and one end of the separation bar on the right side is fixedly connected to the outer wall of the opening and closing plate, thereby fixing the separation bars.

[0013] Preferably, the thread pitch of the outer wall thread of the threaded rod is large and the thread helix angle is greater than 45 degrees. The separating strip is made of rubber and is elastic, so that the separating strip can deform and push the inner thread to slide and rise on the threaded rod.

[0014] Preferably, the outer wall of the threaded rod has an air hole A, a fixed sleeve is fixedly connected to one end of the threaded rod, a spring is fixedly connected to the inner wall of the fixed sleeve, a sliding block is fixedly connected to one end of the spring, the outer wall of the sliding block is slidably connected to the inner wall of the fixed sleeve, and the inner wall of the sliding block is slidably connected to the outer wall of the threaded rod, so that they slide against each other.

[0015] Preferably, the inner wall of the screening hole on the opening and closing plate is provided with an air hole B. One end of the air hole A is connected to the inner wall of the fixed sleeve, and the other end of the air hole A is connected to the inside of the opening and closing plate. The inside of the opening and closing plate is connected to the inner wall of the air hole B, so that air is ejected.

[0016] Preferably, the screening holes on the inner wall of the opening and closing plate are interconnected with the screening holes on the inner wall of the sliding plate A, and the inner wall of the screening holes has a circular groove structure.

[0017] This invention provides a food testing and packaging device, which has the following beneficial effects:

[0018] 1. This invention, by setting up a screening and opening mechanism, causes the opening and closing plate and the sliding plate A to rise and fall synchronously as the hinge rod is continuously pushed up and down, thereby continuously pushing the food particles. This results in more uniform and rapid pushing of the particles falling onto the plate, allowing more food particles to pass through the screening holes, thus improving screening efficiency and reducing the problem of food particles squeezing and clogging each other. Furthermore, based on the vibration, the opening and closing plate rotates, causing the food particles to roll back and forth on the opening and closing plate and the sliding plate A, ensuring that the food particles are evenly spread on them and maximizing the efficiency of the falling particles through the screening holes.

[0019] 2. By setting up a sieving and opening mechanism, this invention avoids the problem that food particles, after passing through the sieving holes, accumulate and are squeezed together in the sieving holes of the opening and closing plate during long-term sieving and filtration, preventing them from falling. Furthermore, when the sliding plate A is pushed into the opening and closing plate, particles higher or lower than the sieving holes in the sliding plate A are squeezed and broken by the inner wall of the opening and closing plate, which greatly avoids clogging of the sieving holes during the sieving process and further ensures the stability of the sieving and filtration operation.

[0020] 3. By setting up a screening and opening mechanism, this invention achieves a continuous wiping and cleaning effect on the outer wall of the opening and closing plate as the opening and closing plate and the sliding plate A open and close and rotate back and forth. In addition, as the sliding plate A enters and slides out of the opening and closing plate, it scrapes against the inner wall of the opening and closing plate, thus cleaning the outer wall of the sliding plate A. This avoids the problem of a large amount of residue adhering to the outer wall of the opening and closing plate and the sliding plate A, which would make it difficult for food particles to roll. This ensures that the falling efficiency of the screening holes is not affected, improves work efficiency, reduces the number of times the staff needs to clean it, and also improves the work efficiency of the staff.

[0021] 4. This invention, by setting up a separation mechanism, ensures that food particles are evenly dispersed by multiple separation strips when they fall, preventing them from accumulating on the sieve holes at a certain position on the opening and closing plate and sliding plate A. At the same time, the rotation of the separation plate disperses the falling food particles, preventing them from sticking together due to moisture. This would prevent food particles that could normally pass through the sieve holes from passing through, thus avoiding the problem of re-sieving the subsequent product. This further performs pre-treatment of the food particles before sieving, automatically dispersing and preventing adhesion.

[0022] 5. This invention, through the separation mechanism, pushes the inner threaded sleeve to the sliding block position above the threaded rod, which in turn pushes the sliding block into the fixed sleeve. The sliding block compresses the spring, causing it to deform and compressing the air in the fixed sleeve, which then enters the air hole A at the top of the threaded rod. Through air hole A, the air enters the air hole B on the inner wall of the sieve hole and is ejected through air hole B. This achieves a certain degree of drying of the residues that adhere to the inner wall of the numerous sieve holes due to moisture, preventing adhesion. Furthermore, the lifting and lowering vibration of the opening and closing plate, along with the blowing of the air with a smaller diameter and higher pressure from air hole B, further improves the efficiency of food particle removal and the anti-clogging effect. Attached Figure Description

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

[0024] Figure 2 This is a schematic diagram of the screening box of the present invention;

[0025] Figure 3 This is a schematic diagram of the sieving and separating mechanism of the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the sieving and separating mechanism of the present invention. Figure 2 ;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point A;

[0028] Figure 6 This is a schematic diagram of the disassembly structure of the screening and separating mechanism of the present invention. Figure 1 ;

[0029] Figure 7 This is a schematic diagram of the disassembly structure of the screening and separating mechanism of the present invention. Figure 2 ;

[0030] Figure 8 This invention represents a three-dimensional transformation of the screening and separating mechanism. Figure 1 ;

[0031] Figure 9This invention represents a three-dimensional transformation of the screening and separating mechanism. Figure 2 ;

[0032] Figure 10 For the present invention Figure 4 Enlarged view of point B;

[0033] Figure 11 This is a schematic diagram of the separation mechanism of the present invention;

[0034] Figure 12 This is a schematic diagram of the disassembled structure of the separation mechanism of the present invention;

[0035] Figure 13 This is a three-dimensional transformation diagram of the separation mechanism of the present invention.

[0036] In the diagram: 1. Fixed roller; 2. Screening box; 3. Screening opening and closing mechanism; 301. Rotating rod A; 302. Roller A; 303. Connecting rod; 304. Rotating rod B; 305. Roller B; 306. Bearing sleeve; 307. Fixed rod; 308. Rotating sleeve; 309. Hinge rod; 310. Rotating ball; 311. Connecting seat; 312. Sliding plate A; 313. Opening and closing plate; 314. Sliding bar; 315. Screening hole; 316. Rotating shaft; 317. Elastic rope; 318. Sliding plate B; 319. Stop block; 320. Counterweight block; 321. Circular rod; 4. Separation mechanism; 401. Separation bar; 402. Threaded rod; 403. Internal threaded sleeve; 404. Separation lever; 405. Sliding block; 406. Fixed sleeve; 407. Spring; 408. Air hole A; 409. Air hole B; 410. Long plate; 5. Conveyor; 6. Support frame; 7. Box door. Detailed Implementation

[0037] Example 1:

[0038] Please see Figure 1-7 The present invention provides a technical solution: a food testing and packaging equipment, including a conveyor 5, a screening box 2 fixedly connected to the bottom of the conveyor 5, a support frame 6 fixedly connected to the bottom of the screening box 2, and a fixed roller 1 fixedly connected to the bottom of the support frame 6, characterized in that: a box door 7 is hinged to the top of the screening box 2, and a screening opening and closing mechanism 3 is provided on the inner wall of the screening box 2.

[0039] The screening and separating mechanism 3 includes:

[0040] Rotating rod A301 is a circular rod-shaped structure. One end of rotating rod A301 is rotatably connected to one side of the inner wall of screening box 2, and the other end of rotating rod A301 is fixedly connected to roller A302. The bottom of roller A302 contacts the top of conveyor 5. A connecting rod 303 is fixedly connected to the outer wall of roller A302, and a rotating sleeve 308 is rotatably connected to the outer wall of connecting rod 303. Rotating rod A301 is used to support and limit the roller A302.

[0041] Roller B305, with a rotating rod B304 fixedly connected to its inner wall, a bearing sleeve 306 rotatably connected to the outer wall of the rotating rod B304, a fixing rod 307 fixedly connected to the outer wall of the bearing sleeve 306, one end of the fixing rod 307 fixedly connected to the inner wall of the screening box 2, a hinge rod 309 hinged to the outer wall of the rotating sleeve 308, a rotating ball 310 fixedly connected to one end of the hinge rod 309, a connecting seat 311 rotatably connected to the outer wall of the rotating ball 310, and an opening and closing plate 313 fixedly connected to the outer wall of the connecting seat 311, the roller B305 serves to support and stabilize roller A302 through the connection of the connecting rod 303;

[0042] Example 2:

[0043] Please see Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution: a rotating shaft 316 is fixedly connected to the outer wall of the opening and closing plate 313, the outer wall of the rotating shaft 316 is rotatably connected to the inner wall of the screening box 2, a sliding plate A312 is slidably connected to the inner wall of the opening and closing plate 313, screening holes 315 are provided on both the sliding plate A312 and the inner wall of the opening and closing plate 313, and there are two sliding plates A312, with a circular rod 321 rotatably connected to one side of the two sliding plates A312.

[0044] A sliding strip 314 is fixedly connected to the outer wall of the opening and closing plate 313. A sliding plate B318 is slidably connected to the outer wall of the sliding strip 314. An elastic rope 317 is fixedly connected to the outer wall of the sliding plate B318. One end of the elastic rope 317 is fixedly connected to the outer wall of the rotating shaft 316. A counterweight 320 is fixedly connected to the outer wall of the sliding plate B318. A stop block 319 is fixedly connected to one end of the sliding strip 314. A separation mechanism 4 is provided on the outer wall of the opening and closing plate 313.

[0045] Open the box door 7, then put a large amount of food particles that need to be tested and packaged into the screening box 2, and start the conveyor 5. The food particles passing through the screening box 2 fall onto the opening plate 313 and the sliding plate A312, and fall through the screening holes 315 opened on the inner wall of the opening plate 313 and the sliding plate A312. After falling, they reach the top of the conveyor 5, and then, with the transmission movement of the conveyor 5, the screening of food particles is realized, and the food particles are transported out for subsequent packaging work.

[0046] While the conveyor 5 is transmitting data, it drives the roller A302, which is in contact with the top of the conveyor 5, to rotate. When the roller A302 rotates, it drives the connecting rod 303 and the rotating sleeve 308 to rotate synchronously. As the rotating sleeve 308 rotates back and forth on the roller A302, it pushes the hinge rod 309 through a hinge. The hinge rod 309 is rotatably connected to the connecting seat 311 through the rotating ball 310, thereby pushing the connecting seat 311 to the opening and closing plate 313 to reciprocate up and down. The opening and closing plate 313 begins to reciprocate to open and close about the rotating shaft 316.

[0047] When the opening and closing plate 313 opens and rotates, it drives the sliding plate A312 on the inner wall to rise and fall synchronously. When the sliding plate A312 is raised, the two sliding plates A312 are slidably connected to each other through the circular rod 321, so the two sliding plates A312 squeeze each other and slide into the inner wall of the opening and closing plate 313. As the hinge rod 309 pushes up and down continuously, the opening and closing plate 313 and the sliding plate A312 rise and fall synchronously, realizing the continuous pushing of food particles, which makes the particles falling on it more even and faster, so that the food particles pass through the sieve hole 315 more smoothly, thereby improving the sieving efficiency and reducing the problem of food particles squeezing and clogging each other. In addition, based on the vibration, the food particles also roll back and forth on the opening and closing plate 313 and the sliding plate A312 as the opening and closing plate 313 opens and closes and rotates, so that the food particles are evenly spread on it, avoiding the problem of food particles being concentrated in a certain position on the sieve hole 315, which would affect the sieving efficiency.

[0048] As the sliding plate A312 continuously slides along the inner wall of the opening and closing plate 313, it crushes the particles that are blocked and squeezed in the screening holes 315 of the opening and closing plate 313, allowing them to fall through the screening holes 315. This avoids the problem of food particles passing through the screening holes 315 but accumulating and being squeezed together in the screening holes 315 of the opening and closing plate 313 during long-term screening and filtration, preventing them from falling. Furthermore, the particles blocking the screening holes 315 in the sliding plate A312 will also be crushed by the inner wall of the opening and closing plate 313 as the sliding plate A312 is pushed into the opening and closing plate 313. This greatly avoids clogging of the screening holes 315 during the screening process and further ensures the stability of the screening and filtration operation.

[0049] Furthermore, when the opening and closing plate 313 and the sliding plate A312 open and close back and forth, when the opening and closing plate 313 and the sliding plate A312 rotate and rise to a horizontal state, the sliding plate B318, which is slidably connected to the outer wall of the slide bar 314, loses its downward gravity and is thus pulled back to the pivot 316 by the elastic force of the elastic rope 317. When the opening and closing plate 313 and the sliding plate A312 descend and rotate again, the sliding plate B318 will again slide down the outer wall of the slide bar 314 due to its own gravity. Since the gravity is greater than the elastic force of the elastic rope 317, it will pull the elastic rope 317 to deform, thus realizing the movement of the opening and closing plate 313 and the sliding plate A312 back and forth. As the sliding plate B318 continuously rubs and cleans the outer wall of the opening and closing plate 313, the sliding plate A312 scrapes against the inner wall of the opening and closing plate 313 as it enters and exits the opening and closing plate 313. This also cleans the outer wall of the sliding plate A312, preventing a large amount of residue from adhering to the outer walls of the opening and closing plate 313 and making it difficult for food particles to roll. This ensures that the falling efficiency of the screening hole 315 is not affected, improves work efficiency, reduces the number of times the staff needs to clean it, and also improves the work efficiency of the staff.

[0050] Example 3:

[0051] Please see Figure 1-13 Based on Embodiments 1 and 2, the present invention provides a technical solution: the separation mechanism 4 includes a threaded rod 402, the outer wall of the opening and closing plate 313 is fixedly connected to the outer wall of the threaded rod 402, the outer wall of the threaded rod 402 is threadedly connected to an inner threaded sleeve 403, the outer wall of the inner threaded sleeve 403 is fixedly connected to a separation lever 404, and the outer wall of the inner threaded sleeve 403 is rotatably connected to two separation bars 401, one end of the separation bar 401 on the left side is fixedly connected to a long plate 410, and one end of the separation bar 401 on the right side is fixedly connected to the outer wall of the opening and closing plate 313.

[0052] The thread pitch of the threaded rod 402 on the outer wall is large and the thread helix angle is greater than 45 degrees. The separating strip 401 is made of rubber and has elasticity.

[0053] The outer wall of the threaded rod 402 has an air hole A408. One end of the threaded rod 402 is fixedly connected to a fixing sleeve 406. The inner wall of the fixing sleeve 406 is fixedly connected to a spring 407. One end of the spring 407 is fixedly connected to a sliding block 405. The outer wall of the sliding block 405 is slidably connected to the inner wall of the fixing sleeve 406, and the inner wall of the sliding block 405 is slidably connected to the outer wall of the threaded rod 402.

[0054] The inner wall of the screening hole 315 on the opening and closing plate 313 is provided with an air hole B409. One end of the air hole A408 is connected to the inner wall of the fixed sleeve 406, and the other end of the air hole A408 is connected to the inside of the opening and closing plate 313. The inside of the opening and closing plate 313 is connected to the inner wall of the air hole B409.

[0055] The screening holes 315 on the inner wall of the opening and closing plate 313 are interconnected with the screening holes 315 on the inner wall of the sliding plate A312, and the inner wall of the screening holes 315 is a circular groove structure.

[0056] As the circular rod 321 rises, the sliding plate A312 is pushed into the inner wall of the opening and closing plate 313. This brings the sliding plate A312 closer to the rotating shaft 316, causing the separating strip 401 on the outer wall of the sliding plate A312 and the rotating shaft 316 to push the internal threaded sleeve 403 upwards on the outer wall of the threaded rod 402. One end of the separating strip 401 is rotatably connected to the outer wall of the internal threaded sleeve 403. As the internal threaded sleeve 403 slides and rotates upwards on the outer wall of the threaded rod 402 via the threads, the thread helix angle of the threads on the outer wall of the threaded rod 402 is greater than 45 degrees. This causes the internal threaded sleeve 403 to rotate and rise, driving the outer wall upwards. The separating plate 404 also rotates and rises synchronously, so that when the food particles fall, they are first evenly dispersed by multiple separating bars 401, so that the food particles do not accumulate on the screening holes 315 at a certain position on the opening plate 313 and the sliding plate A312. At the same time, the rotation of the separating plate 404 disperses the falling food particles, preventing the food particles from sticking together and clumping due to moisture, which would prevent the food particles that could originally pass through the screening holes 315 from passing through, and thus causing the problem of subsequent product re-screening. This further performs pre-treatment work on the food particles before screening, and automatically disperses and prevents them from sticking.

[0057] Because the separating bar 401 is elastic, it will push the inner threaded sleeve 403 upward through its own deformation. When the inner threaded sleeve 403 is pushed to the position of the sliding block 405 above the threaded rod 402, it will push the sliding block 405 into the fixed sleeve 406. The sliding block 405 compresses the spring 407 to deform it, and compresses the air in the fixed sleeve 406 into the air hole A408 opened at the top of the threaded rod 402. Through the air hole A408, the air enters into the air hole B409 opened on the inner wall of the screening hole 315. The air is sprayed out through the air hole B409, which dries the residue that adheres to the inner wall of the screening hole 315 due to moisture by airflow, thus preventing adhesion. In addition, the vibration of the opening and closing plate 313 and the blowing of the air with a small diameter and high pressure in the air hole B409 further improve the efficiency of food particle removal and the anti-clogging effect.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A food testing and packaging device, comprising a conveyor (5), wherein a screening box (2) is fixedly connected to the bottom of the conveyor (5), a support frame (6) is fixedly connected to the bottom of the screening box (2), and a fixed roller (1) is fixedly connected to the bottom of the support frame (6), characterized in that: The top of the screening box (2) is hinged with a door (7), and the inner wall of the screening box (2) is provided with a screening opening and closing mechanism (3); The screening and separating mechanism (3) includes: Rotating rod A (301), the rotating rod A (301) is a circular rod structure. One end of the rotating rod A (301) is rotatably connected to one side of the inner wall of the screening box (2). The other end of the rotating rod A (301) is fixedly connected to a roller A (302). The bottom of the roller A (302) is in contact with the top of the conveyor (5). A connecting rod (303) is fixedly connected to the outer wall of the roller A (302). A rotating sleeve (308) is rotatably connected to the outer wall of the connecting rod (303). The rotating rod A (301) is used to support and limit the roller A (302). Roller B (305) has a rotating rod B (304) fixedly connected to its inner wall. A bearing sleeve (306) is rotatably connected to the outer wall of the rotating rod B (304). A fixing rod (307) is fixedly connected to the outer wall of the bearing sleeve (306). One end of the fixing rod (307) is fixedly connected to the inner wall of the screening box (2). A hinge rod (309) is hinged to the outer wall of the rotating sleeve (308). A rotating ball (310) is fixedly connected to one end of the hinge rod (309). A connecting seat (311) is rotatably connected to the outer wall of the rotating ball (310). An opening and closing plate (313) is fixedly connected to the outer wall of the connecting seat (311). Roller B (305) provides stable support for roller A (302) through the connection of the connecting rod (303).

2. The food testing and packaging equipment according to claim 1, characterized in that: The outer wall of the opening and closing plate (313) is fixedly connected to a rotating shaft (316), the outer wall of the rotating shaft (316) is rotatably connected to the inner wall of the screening box (2), the inner wall of the opening and closing plate (313) is slidably connected to a sliding plate A (312), both the sliding plate A (312) and the inner wall of the opening and closing plate (313) are provided with screening holes (315), there are two sliding plates A (312), and a circular rod (321) is rotatably connected to one side of the two sliding plates A (312).

3. The food testing and packaging equipment according to claim 2, characterized in that: A slide bar (314) is fixedly connected to the outer wall of the opening and closing plate (313). A sliding plate B (318) is slidably connected to the outer wall of the slide bar (314). An elastic rope (317) is fixedly connected to the outer wall of the sliding plate B (318). One end of the elastic rope (317) is fixedly connected to the outer wall of the rotating shaft (316). A counterweight (320) is fixedly connected to the outer wall of the sliding plate B (318). A stop block (319) is fixedly connected to one end of the slide bar (314). A separation mechanism (4) is provided on the outer wall of the opening and closing plate (313).

4. The food testing and packaging equipment according to claim 3, characterized in that: The separation mechanism (4) includes a threaded rod (402), the outer wall of the opening and closing plate (313) is fixedly connected to the outer wall of the threaded rod (402), the outer wall of the threaded rod (402) is threadedly connected to an inner threaded sleeve (403), the outer wall of the inner threaded sleeve (403) is fixedly connected to a separation lever (404), the outer wall of the inner threaded sleeve (403) is rotatably connected to two separation bars (401), one end of the separation bar (401) on the left side is fixedly connected to a long plate (410), and one end of the separation bar (401) on the right side is fixedly connected to the outer wall of the opening and closing plate (313).

5. The food testing and packaging equipment according to claim 4, characterized in that: The thread pitch of the outer wall thread of the threaded rod (402) is large and the thread helix angle is greater than 45 degrees. The separating strip (401) is made of rubber and has elasticity.

6. The food testing and packaging equipment according to claim 5, characterized in that: The threaded rod (402) has an air hole A (408) on its outer wall. A fixed sleeve (406) is fixedly connected to one end of the threaded rod (402). A spring (407) is fixedly connected to the inner wall of the fixed sleeve (406). A sliding block (405) is fixedly connected to one end of the spring (407). The outer wall of the sliding block (405) is slidably connected to the inner wall of the fixed sleeve (406). The inner wall of the sliding block (405) is slidably connected to the outer wall of the threaded rod (402).

7. The food testing and packaging equipment according to claim 6, characterized in that: The inner wall of the screening hole (315) on the opening and closing plate (313) is provided with an air hole B (409). One end of the air hole A (408) is connected to the inner wall of the fixed sleeve (406), and the other end of the air hole A (408) is connected to the inside of the opening and closing plate (313). The inside of the opening and closing plate (313) is connected to the inner wall of the air hole B (409).

8. The food testing and packaging equipment according to claim 7, characterized in that: The screening holes (315) on the inner wall of the opening and closing plate (313) are connected to the screening holes (315) on the inner wall of the sliding plate A (312), and the inner wall of the screening holes (315) is a circular groove structure.

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