A food pretreatment device for food safety testing
By designing a pretreatment equipment for food safety testing, and using electric push rods to drive the cutting knife and cutter to cut vegetables, the inaccurate detection problems caused by existing equipment due to clear stems and leaves and pesticide residues during testing, achieving more accurate and efficient detection results.
Patent Information
- Application Number
- CN202411856117.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-04-04
AI Technical Summary
When testing vegetables, existing food pretreatment equipment for food safety testing, due to clear stems and leaves and pesticide residues, the detection results are inaccurate, the pesticide residues are underestimated or overestimated, and microbial pollution affects the detection accuracy.
A food pretreatment equipment including a processing table, installation box, electric push rod, slider, cutting knife and cutting knife is designed. The cutting knife and cutting knife are driven by the electric push rod to cut the vegetables, realize the separation of stems and leaves, and cut them into small pieces of equal size to reduce detection errors.
Through stem and leaf separation and uniform cutting, the accuracy and representativeness of the detection results are improved, detection errors are reduced, and detection efficiency and speed are improved.
Smart Images
Figure CN119756978A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of food safety, and in particular relates to food pretreatment equipment for food safety detection. Background Art
[0002] Food refers to all kinds of finished products and raw materials for human consumption or drinking, as well as items that are traditionally both food and Chinese medicinal materials. The definition of food is: substances that can be consumed or drunk by humans, including processed food, semi-finished products and unprocessed food. In the production environment of vegetables, in order to avoid pests and increase their yields, pesticides are usually sprayed during the planting process to protect them from pests and other protections to increase their yields. Pesticides will remain on the surface of vegetables. Before processing and selling vegetables, they need to be sampled and tested to prevent excessive pesticide content that does not meet national standards.
[0003] However, the existing food pretreatment equipment for food safety testing often has some problems in actual use: first, the existing industrial testing method for vegetables such as green vegetables is to grind the sample vegetables, then add the testing agent, and obtain the sample solution through homogenization, oscillation, mixing and other operations, and then test the sample. In this process, since the stems and leaves of vegetables such as green vegetables are distinct, the nutritional components of the stems are different from those of the roots and leaves, which may cause an impact on the detection. At the same time, the stems are more likely to accumulate and retain pesticides due to gravity, and the leaves are the exposed part of the plant, so they are more susceptible to microbial contamination. If they are ground together and tested, the test results will not accurately reflect the overall nutritional value of the green vegetables due to the different characteristics of the stems and leaves, and the pesticide residues will be underestimated or overestimated. Finally, the leaves are more susceptible to microbial contamination, which can easily affect the accuracy of microbial indicators. Summary of the invention
[0004] The object of the present invention is to provide a food pretreatment device for food safety detection to solve the problems raised in the above background technology.
[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a food preprocessing device for food safety detection, comprising a processing table, a mounting box is fixedly connected to the top of the processing table, a first electric push rod is fixedly connected to one side of the inside of the mounting box, a slider is fixedly connected to the output end of the first electric push rod, a slide groove is provided on the top of the inner side of the mounting box, the slider is slidably connected to the inside of the slide groove, two pushing blocks are fixedly connected to the bottom of the slider, a plurality of first connecting columns are fixedly connected to the top of the inner side of the mounting box, one end of the plurality of first connecting columns is fixedly connected to a fixed bottom plate, and the inside of the fixed bottom plate is slidably connected to Two second connecting columns are connected, and two pulleys are hinged on the top of the two second connecting columns respectively, and two first springs are movably sleeved on the outer sides of the two second connecting columns, one end of the two first springs are fixedly connected to the fixed bottom plate, and the other ends of the two first springs are fixedly connected to the lower ends of the T-shaped outer sides of the two second connecting columns respectively, one of the lower ends of the two second connecting columns is fixedly connected to the limiting plate, and the lower end of the other second connecting column is fixedly connected to a cutting plate, and a cutting knife is fixedly connected to the middle section of the bottom of the cutting plate, and cutting knives are fixedly connected to both sides of the cutting knife, a feeding assembly is arranged inside the processing table, and a vibration assembly is arranged on one side inside the processing table.
[0006] Preferably, the feeding assembly includes a driving motor, an output end of the driving motor is fixedly connected to a first rotating shaft, an outer side of the first rotating shaft is fixedly connected to a rotating column, an outer side of the rotating column is fixedly connected to a first toggle rod, a second rotating shaft is provided on one side of the first rotating shaft, the second rotating shaft is rotatably connected to a processing table, an outer side of the second rotating shaft is fixedly connected to a toggle block, the first toggle rod and the toggle block are provided correspondingly, a third rotating shaft is rotatably connected to one side of an interior of the processing table, the second rotating shaft and the third rotating shaft are on the same axis, the diameters of the second rotating shaft and the third rotating shaft are equal, the outer sides of the second rotating shaft and the third rotating shaft are fixedly connected to pulleys, and transmission belts are provided on the outer sides of the two pulleys.
[0007] Preferably, the feeding assembly also includes a third rotating shaft, the third rotating shaft is fixedly connected to the processing table, the bottom of the third rotating shaft is in contact with the top of the transmission belt, two material guide plates are fixedly connected on both sides of the third rotating shaft, the two sides of the two material guide plates are not in contact with the side edges of the transmission belt, and a bevel is set on one side of the material guide plate.
[0008] Preferably, the vibration assembly includes a double-headed push rod, two first material storage frames are fixedly connected to both sides of the double-headed push rod, the two first material storage frames are respectively arranged corresponding to the two material guide plates, two second springs are fixedly connected to the bottom of the first material storage frame, the top of the two second springs are fixedly connected to the second material storage frame, a vibration rod is fixedly connected to one side of the second material storage frame, a through groove is provided in the first storage frame corresponding to the vibration rod, a rotating wheel is fixedly connected to the outer side of the third rotating shaft, and a second toggle rod is fixedly connected to the outer side of the rotating wheel.
[0009] Preferably, a support plate is provided at the bottom of the transmission belt, the support plate is fixedly connected to the processing table, the support plate is arranged corresponding to the cutting plate, the length and width of the support plate and the cutting knife are equal, and the square cutting margin at the bottom of the cutting knife is 2mm.
[0010] Preferably, two frame removal grooves are respectively provided on both sides of the processing table, and the two frame removal grooves are respectively arranged corresponding to the two first material storage frames.
[0011] Preferably, the two pushing blocks are arranged in a mirror image, the two second connecting columns are not arranged symmetrically, one of the pulleys is located at the farthest top surface of one of the second connecting columns, and the other pulley is located at the hypotenuse position of the second connecting column.
[0012] Preferably, the guide block is located at the center of the transmission belt, and the heights of two sides of the guide block are higher than the two material guide plates.
[0013] The beneficial effects of the present invention are as follows: 1. The present invention starts the first electric push rod, which drives the cutting knife and the dicing knife to fall and cooperates with the feeding assembly. After the limit plate is lifted, the cut vegetables to be processed are transmitted to the bottom of the cutting plate, and the cutting plate drives the cutting knife and the dicing knife to cut the green vegetables. The cutting knife in the middle separates the stems and leaves of the green vegetables, and the cutting knives on both sides cut the stems and leaves of the green vegetables into small pieces at the same time, so as to separate the stems and leaves of the green vegetables and cut them into small pieces of equal size, thereby reducing the detection error caused by uneven samples, making the results more representative, accurate and reliable, and at the same time increasing the detection efficiency and speed.
[0014] 2. The present invention moves the first electric push rod, which starts to push the slider to move. The movement of the slider drives the pushing block to move. After the pushing block moves, the horizontal distance is displaced. At this time, the first spring pops out to give thrust to the pulley, so that the pulley contacts the end face of the pushing block. At this time, since the two pushing blocks are mirror-imaged and the two second connecting columns are not symmetrically arranged, after the slider moves and the limit plate is lifted, the green vegetables will continue to move to the cutting position for cutting. In this process, the limit plate will block the transmission of the green vegetables, so as to avoid better delivery to the precise position during the transportation of the green vegetables, and avoid the situation that the green vegetables are transported too far or too close during the transportation process, thereby improving the cutting effect and improving work efficiency.
[0015] 3. The present invention starts a driving motor, which drives the first rotating shaft to rotate. The rotation of the first rotating shaft drives the rotating column to rotate. The rotation of the rotating column drives the first toggle lever to rotate. The rotation of the first toggle lever drives the toggle block to rotate. The rotation of the toggle block drives the second rotating shaft to rotate. The rotation of the second rotating shaft drives the pulley to rotate. The rotation of the pulley drives the transmission belt to move. Due to the coordinated rotation of the first toggle lever and the toggle block, intermittent transmission of the transmission belt is realized, which ensures that the green vegetables are accurately positioned, quickly and smoothly shifted during the transportation process.
[0016] 4. The present invention starts the double-headed push rod, which starts to move the second material storage frame to the corresponding position of the vibration rod and the second toggle rod. At this time, the rotation of the driving motor will drive the vibration rod to press downward. After the vibration rod is pressed, it will drive the second spring to compress. After the second toggle rod rotates and does not contact the vibration rod, the elasticity of the second spring is released, driving the second material storage frame to shake, thereby detecting the green vegetables, accelerating its reaction rate, and improving the detection rate. The shaking can make the green vegetables contact with the detection agent more violently, thereby improving the detection effect. After the reaction is completed, the double-headed push rod continues to push, so that after it reaches the corresponding position of the frame taking slot, the second material storage frame can be taken out through the frame taking slot for observation, which is convenient for the subsequent cleaning and replacement of the second material storage frame, can improve the detection efficiency, and can avoid residues from the previous detection, thereby ensuring the accuracy and reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of a processing table of the present invention; Figure 3 It is a cross-sectional view of the installation box of the present invention; Figure 4 It is a schematic diagram of the structure of the dicing knife of the present invention; Figure 5 It is a structural schematic diagram of the transmission belt of the present invention; Figure 6 It is a structural schematic diagram of the first toggle lever of the present invention; Figure 7 It is a cross-sectional view of the first material storage frame of the present invention.
[0018] In the figure: 1, processing table; 2, installation box; 3, first electric push rod; 4, slider; 5, slide groove; 6, push block; 7, first connecting column; 8, fixed bottom plate; 9, second connecting column; 10, pulley; 11, first spring; 12, limit plate; 13, cutting plate; 14, cutting knife; 15, cutting knife; 16, driving motor; 17, first rotating shaft; 18, rotating column; 19, first toggle rod; 20, second rotating shaft; 21, toggle block; 22, pulley; 23, transmission belt; 24, third rotating shaft; 25, guide block; 26, guide plate; 27, double-headed push rod; 28, first storage frame; 29, second spring; 30, second storage frame; 31, vibration rod; 32, rotating wheel; 33, second toggle rod; 34, support plate; 35, frame removal slot. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] like Figures 1 to 7As shown, an embodiment of the present invention provides a food preprocessing device for food safety detection, including a processing table 1, a mounting box 2 is fixedly connected to the top of the processing table 1, a first electric push rod 3 is fixedly connected to one side of the inside of the mounting box 2, a slider 4 is fixedly connected to the output end of the first electric push rod 3, a slide groove 5 is opened on the top of the inner side of the mounting box 2, the slider 4 is slidably connected to the inside of the slide groove 5, and two pushing blocks 6 are fixedly connected to the bottom of the slider 4, respectively, a plurality of first connecting columns 7 are fixedly connected to the top of the inner side of the mounting box 2, a fixed bottom plate 8 is fixedly connected to one end of the plurality of first connecting columns 7, two second connecting columns 9 are slidably connected to the inside of the fixed bottom plate 8, two pulleys 10 are hingedly connected to the top of the two second connecting columns 9, two first springs 11 are movably sleeved on the outer sides of the two second connecting columns 9, one end of the two first springs 11 are fixedly connected to the fixed bottom plate 8, and the other ends of the two first springs 11 are fixedly connected to the T-shaped outer lower ends of the two second connecting columns 9, respectively. The lower end of one of the two connecting columns 9 is fixedly connected to a limiting plate 12, the lower end of the other second connecting column 9 is fixedly connected to a cutting plate 13, the middle section of the bottom of the cutting plate 13 is fixedly connected to a cutting knife 14, and both sides of the cutting knife 14 are fixedly connected to cutting knives 15, a feeding assembly is arranged inside the processing table 1, and a vibration assembly is arranged on one side of the processing table 1, by starting the first electric push rod 3, the first electric push rod 3 starts to drive the cutting knife 14 and the cutting knife 15 to fall, and cooperate with the feeding assembly to stop the limiting plate 12 After being lifted up, the cut vegetables that need to be processed are transmitted to the bottom of the cutting plate 13, and the cutting plate 13 drives the cutting knife 14 and the dicing knife 15 to cut the vegetables. The cutting knife 14 in the middle separates the stems and leaves of the vegetables, and the cutting knives 14 on both sides cut the stems and leaves of the vegetables into small pieces at the same time, so as to separate the stems and leaves of the vegetables and cut them into small pieces of equal size, thereby reducing the detection error caused by uneven samples, making the results more representative, accurate and reliable, and at the same time increasing the detection efficiency and speed during detection.
[0021] Wherein, the feeding assembly includes a driving motor 16, the output end of the driving motor 16 is fixedly connected to a first rotating shaft 17, the outer side of the first rotating shaft 17 is fixedly connected to a rotating column 18, the outer side of the rotating column 18 is fixedly connected to a first toggle rod 19, a second rotating shaft 20 is arranged on one side of the first rotating shaft 17, the second rotating shaft 20 is rotatably connected to the processing table 1, the outer side of the second rotating shaft 20 is fixedly connected to a toggle block 21, the first toggle rod 19 is arranged corresponding to the toggle block 21, a third rotating shaft 24 is rotatably connected to one side of the processing table 1, the second rotating shaft 20 and the third rotating shaft 24 are on the same axis, the diameters of the second rotating shaft 20 and the third rotating shaft 24 are equal, the outer sides of the second rotating shaft 20 and the third rotating shaft 24 are fixedly connected to pulleys 22, the outer sides of the two pulleys 22 are provided with transmission belts 23, the feeding assembly also includes the third rotating shaft 24, The third rotating shaft 24 is fixedly connected to the processing table 1, and the bottom of the third rotating shaft 24 is in contact with the top of the transmission belt 23. Two guide plates 26 are fixedly connected on both sides of the third rotating shaft 24, and the two sides of the two guide plates 26 do not contact the sides of the transmission belt 23. One side of the guide plate 26 is provided with an oblique angle, and the driving motor 16 is started, and the driving motor 16 starts to drive the first rotating shaft 17 to rotate, and the rotation of the first rotating shaft 17 drives the rotating column 18 to rotate, and the rotation of the rotating column 18 drives the first toggle rod 19 to rotate, and the rotation of the first toggle rod 19 drives the shift block 21 to rotate, and the rotation of the shift block 21 drives the second rotating shaft 20 to rotate, and the rotation of the second rotating shaft 20 drives the pulley 22 to rotate, and the rotation of the pulley 22 drives the transmission belt 23 to move, and due to the coordinated rotation of the first toggle rod 19 and the shift block 21, intermittent transmission of the transmission belt 23 is realized, which ensures that the positioning of the green vegetables during the transportation process is accurate, and the displacement is rapid and stable.
[0022] Among them, the vibration component includes a double-headed push rod 27, two first material storage frames 28 are fixedly connected on both sides of the double-headed push rod 27, and the two first material storage frames 28 are respectively arranged corresponding to the two material guide plates 26. Two second springs 29 are fixedly connected to the bottom of the first material storage frame 28, and the tops of the two second springs 29 are fixedly connected to the second material storage frame 30. A vibration rod 31 is fixedly connected to one side of the second material storage frame 30. A through groove is opened in the first material storage frame 28 corresponding to the vibration rod 31. A rotating wheel 32 is fixedly connected to the outer side of the third rotating shaft 24, and a second toggle rod 33 is fixedly connected to the outer side of the rotating wheel 32.
[0023] Among them, a support plate 34 is arranged at the bottom of the transmission belt 23, and the support plate 34 is fixedly connected to the processing table 1. The support plate 34 is arranged corresponding to the cutting plate 13. The length and width of the support plate 34 and the cutting knife 15 are equal. The square cutting margin at the bottom of the cutting knife 15 is 2mm. The square cutting margin at the bottom of the cutting knife 15 is 2mm, which can make the vegetables more standardized after cutting and is also convenient for subsequent inspection.
[0024] Among them, two frame removal grooves 35 are respectively opened on both sides of the processing table 1, and the two frame removal grooves 35 are respectively arranged corresponding to the two first storage frames 28. The two frame removal grooves 35 are located inside the processing table 1, and discharge grooves are opened corresponding to the processing table 1 and the frame removal grooves 35, which are convenient for taking out and cleaning the second storage frame 30.
[0025] Among them, the two pushing blocks 6 are mirror-set, the two second connecting columns 9 are not symmetrically set, one of the pulleys 10 is located at the farthest top surface of one of the second connecting columns 9, and the other pulley 10 is located at the hypotenuse position of the second connecting column 9, and the guide block 25 is located at the center position of the transmission belt 23. The heights of both sides of the guide block 25 are higher than the two material guide plates 26. Through the mirror-set setting of the two pushing blocks 6, the first electric push rod 3 can make the two second connecting columns 9 in different working states when pulling the slider 4 to move, so that the sample can be cut more evenly, which is convenient for subsequent processing and detection.
[0026] Working principle: The green vegetables are placed on the surface of the transmission belt 23. After the placement is completed, the driving motor 16 is started. The driving motor 16 starts to drive the first rotating shaft 17 to rotate. The rotation of the first rotating shaft 17 drives the rotating column 18 to rotate. The rotation of the rotating column 18 drives the first toggle rod 19 to rotate. The rotation of the first toggle rod 19 drives the toggle block 21 to rotate. The rotation of the toggle block 21 drives the second rotating shaft 20 to rotate. The rotation of the second rotating shaft 20 drives the pulley 22 to rotate. The rotation of the pulley 22 drives the transmission belt 23 to move. Due to the coordinated rotation of the first toggle rod 19 and the toggle block 21, the transmission belt 23 is intermittently transmitted, which ensures that the green vegetables are accurately positioned, quickly and smoothly shifted during the transportation process. At this time, the first electric push rod 3 is started, and the first electric push rod 3 starts to push the slider 4 to move. The movement of the slider 4 drives the push block 6 to move. After the push block 6 moves, the horizontal distance is displaced. At this time, the first spring 11 pops out to give thrust to the pulley 10, so that the pulley 10 contacts the end face of the push block 6. At this time, since the two push blocks 6 are mirror-imaged, the two second connecting columns 9 are not symmetrically arranged. After the slider 4 moves, the limit plate 12 is lifted, and the cutting plate 13 drives the cutting knife 14 and the cutting knife 15 to fall, cooperating with the feeding assembly. After the limit plate 12 is lifted, The cut vegetables to be processed are transmitted to the bottom of the cutting plate 13, and the cutting plate 13 drives the cutting knife 14 and the dicing knife 15 to cut the green vegetables. The cutting knife 14 in the middle separates the stems and leaves of the green vegetables, and the cutting knives 14 on both sides cut the stems and leaves of the green vegetables into small pieces at the same time, so as to separate the stems and leaves of the green vegetables and cut them into small pieces of equal size, thereby reducing the detection error caused by uneven samples, making the results more representative, accurate and reliable. At the same time, since they are cut into small pieces of equal size, the detection efficiency can be increased during detection, and the detection speed is improved; After the vegetables fall into the second material storage frame 30 through the guidance of the guide plate 26, the detection agent is added into the second material storage frame 30, and the double-headed push rod 27 is started at this time. The double-headed push rod 27 starts to push the first material storage frames 28 on both sides, and the movement of the first material storage frame 28 drives the second material storage frame 30 to move, and the second material storage frame 30 is moved to the corresponding position of the vibration rod 31 and the second toggle rod 33. At this time, the rotation of the driving motor 16 will drive the pulley 22 to rotate, and the rotation of the pulley 22 drives the third rotating shaft 24 to rotate through the transmission belt 23. The rotation of the third rotating shaft 24 drives the rotating wheel 32 to rotate, and the rotation of the rotating wheel 32 drives the second toggle rod 33 to rotate, and the second toggle rod 33 rotates and contacts the vibration rod 31. After the second toggle rod 33 contacts the vibration rod 31, it will press it downward. After the vibration rod 31 is pressed, the second spring 29 will be compressed. After the second toggle rod 33 rotates and no longer contacts the vibration rod 31, the elasticity of the second spring 29 is released, driving the second storage frame 30 to shake, thereby detecting the green vegetables, accelerating its reaction rate and improving the detection rate. The shaking can make the green vegetables contact with the detection agent more violently, so that the detection effect is better. After the reaction is completed, the double-headed push rod 27 continues to push, so that after it reaches the corresponding position of the frame removal slot 35, the second storage frame 30 can be taken out through the frame removal slot 35 for observation, which is convenient for the subsequent cleaning and replacement of the second storage frame 30, which can improve the detection efficiency and avoid the residue from the previous detection, thereby ensuring the accuracy and reliability of the detection results.
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A food pretreatment device for food safety testing, comprising a processing table (1), the top of which is fixedly connected to a mounting box (2), characterized in that: A first electric push rod (3) is fixedly connected to one side of the interior of the installation box (2); a slider (4) is fixedly connected to the output end of the first electric push rod (3); a slide groove (5) is provided on the top of the interior of the installation box (2); the slider (4) is slidably connected to the interior of the slide groove (5); two push blocks (6) are fixedly connected to the bottom of the slider (4); a plurality of first connecting columns (7) are fixedly connected to the top of the interior of the installation box (2); one end of the plurality of first connecting columns (7) is fixedly connected to a fixed bottom plate (8); two second connecting columns (9) are slidably connected to the interior of the fixed bottom plate (8); and two pulleys (10) are hingedly connected to the tops of the two second connecting columns (9). Two first springs (11) are movably sleeved on the outer sides of the two second connecting columns (9), one end of the two first springs (11) is fixedly connected to the fixed bottom plate (8), and the other ends of the two first springs (11) are respectively fixedly connected to the lower ends of the T-shaped outer sides of the two second connecting columns (9), one of the lower ends of the second connecting columns (9) is fixedly connected to a limiting plate (12), the lower end of the other second connecting column (9) is fixedly connected to a cutting plate (13), the middle section of the bottom of the cutting plate (13) is fixedly connected to a cutting knife (14), and both sides of the cutting knife (14) are fixedly connected to a slicing knife (15), a feeding assembly is arranged inside the processing table (1), and a vibration assembly is arranged on one side inside the processing table (1).
2. A food pretreatment device for food safety testing according to claim 1, characterized in that: The feeding assembly comprises a driving motor (16), the output end of the driving motor (16) is fixedly connected to a first rotating shaft (17), the outer side of the first rotating shaft (17) is fixedly connected to a rotating column (18), the outer side of the rotating column (18) is fixedly connected to a first toggle rod (19), a second rotating shaft (20) is arranged on one side of the first rotating shaft (17), the second rotating shaft (20) is rotatably connected to the processing table (1), the outer side of the second rotating shaft (20) is fixedly connected to a toggle block (21), the first toggle rod (19) and the toggle block (21) are arranged correspondingly, a third rotating shaft (24) is rotatably connected to one side of the processing table (1), the second rotating shaft (20) and the third rotating shaft (24) are on the same axis, the diameters of the second rotating shaft (20) and the third rotating shaft (24) are equal, the outer sides of the second rotating shaft (20) and the third rotating shaft (24) are fixedly connected to pulleys (22), and the outer sides of the two pulleys (22) are sleeved with transmission belts (23).
3. A food pretreatment device for food safety testing according to claim 2, characterized in that: The feeding assembly further comprises a third rotating shaft (24), the third rotating shaft (24) being fixedly connected to the processing table (1), the bottom of the third rotating shaft (24) being in contact with the top of the transmission belt (23), two guide plates (26) being fixedly connected to both sides of the third rotating shaft (24), the two sides of the two guide plates (26) not being in contact with the side edges of the transmission belt (23), and one side of the guide plate (26) being provided with an oblique angle.
4. A food pretreatment device for food safety testing according to claim 3, characterized in that: The vibration assembly comprises a double-headed push rod (27), two first material storage frames (28) are fixedly connected to the two sides of the double-headed push rod (27), the two first material storage frames (28) are respectively arranged corresponding to the two material guide plates (26), the bottom of the first material storage frame (28) is fixedly connected to two second springs (29), the tops of the two second springs (29) are fixedly connected to the second material storage frame (30), one side of the second material storage frame (30) is fixedly connected to a vibration rod (31), the first material storage frame (28) is provided with a through groove corresponding to the vibration rod (31), the outer side of the third rotating shaft (24) is fixedly connected to a rotating wheel (32), and the outer side of the rotating wheel (32) is fixedly connected to a second toggle rod (33).
5. A food pretreatment device for food safety testing according to claim 4, characterized in that: A support plate (34) is provided at the bottom of the transmission belt (23), the support plate (34) is fixedly connected to the processing table (1), the support plate (34) is provided corresponding to the cutting plate (13), the length and width of the support plate (34) and the dicing knife (15) are equal, and the square cutting margin at the bottom of the dicing knife (15) is 2 mm.
6. A food pretreatment device for food safety testing according to claim 5, characterized in that: Two frame removal grooves (35) are respectively provided on both sides of the processing table (1), and the two frame removal grooves (35) are respectively arranged corresponding to the two first material storage frames (28).
7. A food pretreatment device for food safety testing according to claim 6, characterized in that: The two pushing blocks (6) are arranged in mirror image, the two second connecting columns (9) are not arranged symmetrically, one of the pulleys (10) is located at the farthest top surface of one of the second connecting columns (9), and the other pulley (10) is located at the hypotenuse of the second connecting column (9).
8. A food pretreatment device for food safety testing according to claim 7, characterized in that: The guide block (25) is located at the center of the transmission belt (23), and the heights of both sides of the guide block (25) are higher than the two material guide plates (26).