A conveying device for food processing with fresh-keeping function

Abstract

The application discloses a food processing conveying device with a fresh-keeping function and relates to the technical field of food conveying. The conveying device comprises a conveying frame, two groups of conveying mechanisms arranged on the inner side of the conveying frame and leaving a gap between the two groups of conveying mechanisms, and filter screen plates. The filter screen plates are arranged in multiple groups, the multiple groups of filter screen plates are arranged on the top of the conveying mechanisms, each group of filter screen plates is provided with two filter screen plates, the top of each filter screen plate is provided with an inclined surface, and each group of filter screen plates is combined to form a concave shape. The T-shaped seat and the connecting rod are driven to move by the rolling of the rollers along the arcuate blocks, the energy storage and reset of the torsion spring are matched, the filter screen plates are periodically converted between the concave shape and the arcuate shape, the materials are subjected to reciprocating sliding and slight tumbling, the continuous contact between the materials and the bearing surface is fundamentally broken, food adhesion is effectively avoided, the structure is stable and reliable, and the conveying device is suitable for complex food processing environments.

Description

Technical Field

[0001] This invention relates to the field of food conveying technology, specifically a food processing conveying device with preservation function. Background Technology

[0002] In continuous food production lines such as frying, braising, baking, and quick-freezing, conveying devices are the core equipment connecting various processing steps. Their performance directly determines the appearance quality, production efficiency, and food safety level of the food. Especially for sticky foods with a surface rich in oil, syrup, or moisture, preventing sticking and cooling preservation during the conveying process are key technical challenges that the industry has long faced.

[0003] Currently, the commonly used fixed flat conveyor belt solution in the industry only reduces adhesion by spraying non-stick coatings or using Teflon materials. This cannot fundamentally break the continuous contact between the material and the bearing surface. The anti-sticking effect on high-viscosity foods such as glutinous rice cakes, braised pig's trotters, and fried sugar cakes is very limited. This not only leads to product damage and deformation and a significant drop in the pass rate, but also causes food residue to accumulate on the conveyor belt surface, breeding bacteria and increasing food safety risks. At the same time, the flat conveyor belt completely covers the bottom of the material, preventing the cooling and preservation airflow from effectively contacting it. This results in uneven cooling of the material from top to bottom, and a slow drop in the center temperature. This not only shortens the preservation time during food processing, but also easily causes oil oxidation and microbial growth, seriously affecting product quality and shelf life. Therefore, this invention provides a food processing conveyor device with preservation function to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the problem that currently, the commonly used fixed flat conveyor belts in the industry only reduce adhesion by spraying non-stick coatings or using Teflon materials. This fails to fundamentally break the continuous contact between the material and the bearing surface, leading to high-viscosity foods easily sticking and breaking, residue accumulation and bacterial growth, and completely obscuring the bottom of the material, resulting in uneven cooling and poor preservation, which seriously affects product quality and shelf life. The invention provides a food processing conveyor device with preservation function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a food processing conveying device with preservation function, comprising: a conveying frame and two sets of conveying mechanisms installed inside the conveying frame, with a gap between the two sets of conveying mechanisms; a filter screen, wherein multiple sets of filter screens are arranged on the top of the conveying mechanisms, each set of filter screens has two screens, and each set of filter screens has an inclined surface on its top, such that each set of filter screens forms a concave shape, and each set of filter screens has a state adjuster on its top, such that each set of filter screens can switch between a concave shape and an arch shape; and an air jet auxiliary device, located inside the conveying frame and below the conveying mechanism, for spraying gas onto the bottom of the food.

[0006] As a further embodiment of the present invention: the state adjuster includes a T-shaped seat disposed below every two filter screens, a first auxiliary seat fixedly connected to the top of the T-shaped seat, a set of suspension seats fixedly connected to the bottom of each filter screen, a connecting rod hinged between the suspension seat and the first auxiliary seat, a support rod disposed below the T-shaped seat, a plurality of arched blocks fixedly connected at equal intervals to the top of the support rod, the support rod being disposed in the gap between the two sets of conveying mechanisms, a roller rotatably connected to the bottom of the T-shaped seat, and the roller abutting against the top of the support rod, a plurality of second auxiliary seats fixedly connected to the top of the conveying mechanism, and each second auxiliary seat being correspondingly disposed on both sides of the filter screen, a rotating shaft fixedly connected to both sides of each filter screen, and one end of the rotating shaft passing through to the outside of the second auxiliary seat and rotatably connected to the second auxiliary seat, a torsion spring being installed between the rotating shaft and the second auxiliary seat.

[0007] As a further embodiment of the present invention: the state adjuster further includes multiple sets of auxiliary frames fixedly connected to the inner side of the conveyor frame, one of the auxiliary frames having a slider slidably connected to its inner side, and the slider being fixedly connected to the support rod; an adjusting screw is rotatably connected to the inner side of the auxiliary frame, and the slider is threadedly connected to the outer wall of the adjusting screw; a servo motor for driving the adjusting screw to rotate is installed at the bottom of the auxiliary frame, and a limiting groove matching the slider is provided on the inner side of the auxiliary frame.

[0008] As a further embodiment of the present invention: the jet auxiliary device includes two sets of positioning seats fixedly connected to the top of each set of auxiliary frames, each set of positioning seats is provided with multiple positioning seats, and a connecting shaft is rotatably connected to the inner side of each positioning seat. One end of the connecting shaft extends through to the outside of the positioning seat and is provided with an air distribution pipe, and the air distribution pipe is located below the filter screen.

[0009] As a further embodiment of the present invention: the jet auxiliary device further includes a support base fixedly connected to one end of the auxiliary frame, two spur racks are slidably connected to the top of the support base, a spur gear meshing with the spur racks is fixedly connected to one end of the connecting shaft, a positioning plate is fixedly connected to the top of the support base, a connecting block is fixedly connected to one side of the spur racks, and a power spring is installed between the connecting block and the positioning plate.

[0010] As a further embodiment of the present invention: the jet auxiliary device further includes an auxiliary rod fixedly connected to the front end of the rack, an auxiliary wheel rotatably connected to the front end of the auxiliary rod, a hydraulic cylinder fixedly connected to one side of the auxiliary frame, a power plate fixedly connected to the output end of the hydraulic cylinder, a trapezoidal block fixedly connected to the top of the power plate, and the trapezoidal block is disposed between the two auxiliary wheels.

[0011] As a further embodiment of the present invention: a position adjuster is provided between the positioning seat and the air distribution pipe, the position adjuster comprising:

[0012] An adjusting block is slidably connected to the inner side of the connecting shaft, and a power wheel is rotatably connected to the bottom of the adjusting block. A connecting spring is installed between the adjusting block and the connecting shaft.

[0013] Multiple arc-shaped blocks are provided, and each arc-shaped block is correspondingly provided at the bottom of one of the power wheels.

[0014] As a further aspect of the present invention: the curvature of the two sets of arc-shaped blocks at the top of each set of auxiliary frames decreases sequentially from the center to the edge.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention uses rollers to roll along the arched block, driving the T-shaped seat and connecting rod to move. With the help of a torsion spring to store energy and reset, the filter screen is driven to periodically switch between concave and arched shapes, causing the material to slide back and forth and roll slightly. This fundamentally breaks the continuous contact between the material and the bearing surface, effectively preventing food from sticking. The structure is stable and reliable, and it is suitable for complex food processing environments.

[0017] 2. This invention uses a servo motor to drive the adjusting screw to raise and lower the support rod, changing the contact position between the arched block and the roller, and precisely controlling the flipping angle of the filter screen. It can flexibly match the low-intensity flipping requirements of fragile puffed foods to the high-intensity flipping requirements of high-viscosity braised products and fried pastries, greatly expanding the application range of the device.

[0018] 3. The invention sprays cold air upward through the air distribution pipe to form an isolation air film at the bottom of the material. This, together with the periodic mechanical flipping of the filter screen, forms a dual anti-adhesion system of "air film isolation + physical flipping", which overcomes the problem of adhesion during the conveying of ultra-high viscosity food. At the same time, the cold air can quickly remove the heat from the bottom of the material, improve the cooling speed, extend the preservation time, and also blow away filter screen residue to maintain smooth air permeability.

[0019] 4. This invention adopts an arc-shaped block design with the curvature decreasing from the center to the edge. When the air distribution pipe swings with the filter screen, the power wheel rolls along the arc surface, causing the air distribution pipe to tilt locally. This forms a stepped air blowing state that is precisely adapted to the arched bearing surface, achieving dual angle compensation, ensuring continuous and uniform air film, reducing airflow loss, and further enhancing the cooling and residue scavenging effects. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a specific cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the state adjuster structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the T-shaped seat abutment of the present invention;

[0024] Figure 5 This is a schematic diagram of the auxiliary frame structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the top structure of the auxiliary frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the jet auxiliary device structure of the present invention;

[0027] Figure 8 This is an exploded view of the connecting shaft and adjusting block of the present invention;

[0028] Figure 9 This is a schematic diagram of the air distribution pipe after adjustment according to the present invention.

[0029] In the diagram: 1. Conveyor frame; 2. Conveying mechanism; 3. Filter screen; 4. Air distribution pipe; 5. Torsion spring; 6. Rotating shaft; 7. Auxiliary frame; 8. Support seat; 9. Spur rack; 10. Suspension seat; 11. Support rod; 12. Connecting rod; 13. First auxiliary seat; 14. Arched block; 15. T-shaped seat; 16. Roller; 17. Power plate; 18. Hydraulic cylinder; 19. Connecting shaft; 20. Spur gear; 21. Trapezoidal block; 22. Auxiliary rod; 23. Auxiliary wheel; 24. Slider; 25. Servo motor; 26. Adjusting screw; 27. Positioning seat; 28. Arc block; 29. ​​Adjusting block; 30. Power spring; 31. Positioning plate; 32. Connecting block; 33. Power wheel; 34. Connecting spring; 35. Second auxiliary seat. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0032] Please see Figures 1-9 This embodiment provides a food processing conveying device with preservation function, including: a conveying frame 1 and two sets of conveying mechanisms 2 installed inside the conveying frame 1, with a gap between the two sets of conveying mechanisms 2;

[0033] Filter discs 3 are provided in multiple sets, arranged on top of the conveying mechanism 2. Each set of filter discs 3 consists of two discs. The top of each filter disc 3 has an inclined surface, forming a concave shape. A state adjuster is provided on the top of each set of filter discs 3, allowing the set to switch between a concave and an arched shape. The state adjuster includes a T-shaped seat 15 located below each pair of filter discs 3. A first auxiliary seat 13 is fixedly connected to the top of the T-shaped seat 15. A set of suspension seats 10 is fixedly connected to the bottom of each filter disc 3. A connecting rod 12 is hinged between the suspension seats 10 and the first auxiliary seat 13. Below the T-shaped seat 15, a support rod 11 is provided. Multiple arched blocks 14 are fixedly connected at equal intervals to the top of the support rod 11. The support rod 11 is set in the gap between the two sets of conveying mechanisms 2. A roller 16 is rotatably connected to the bottom of the T-shaped seat 15, and the roller 16 abuts against the top of the support rod 11. Multiple second auxiliary seats 35 are fixedly connected to the top of the conveying mechanism 2, and each second auxiliary seat 35 is correspondingly set on both sides of the filter screen 3. A rotating shaft 6 is fixedly connected to both sides of each filter screen 3, and one end of the rotating shaft 6 passes through to the outside of the second auxiliary seat 35 and is rotatably connected to the second auxiliary seat 35. A torsion spring 5 is installed between the rotating shaft 6 and the second auxiliary seat 35.

[0034] Firstly, the conveying mechanism 2 is composed of components such as a conveyor belt and a motor. Since it is existing technology, it is not described in detail in this solution. The top of the conveyor belt has multiple air holes that extend to the bottom, and each filter screen 3 is composed of a filter screen or has multiple air holes that extend to the bottom.

[0035] The outer side of the conveyor frame 1 is equipped with a shell, and the inner side of the shell is equipped with an air blowing structure for preserving cold air downwards. Since this is existing technology, this solution does not elaborate on it.

[0036] When the material falls onto the top of the filter screen 3 and passes through the top of the filter screen 3, during the conveying process of the conveying mechanism 2, the roller 16 moves from the lowest point of the arched block 14 to the highest point, pushing the T-shaped seat 15 to drive the two connecting rods 12 to move upward, thereby pushing the two filter screens 3 to rotate upward, causing the torsion spring 5 to twist. When the roller 16 moves from the highest point of the arched block 14 to the lowest point, the filter screen 3 returns to its original position under the action of the torsion spring 5. Since the top of the filter screen 3 itself is in an inclined state, the material can slide back and forth during the conveying process, avoiding food sticking.

[0037] Please see Figure 5The state adjuster also includes multiple sets of auxiliary frames 7 fixedly connected to the inner side of the conveyor frame 1. A slider 24 is slidably connected to the inner side of one of the auxiliary frames 7, and the slider 24 is fixedly connected to the support rod 11. An adjusting screw 26 is rotatably connected to the inner side of the auxiliary frame 7, and the slider 24 is threadedly connected to the outer wall of the adjusting screw 26. A servo motor 25 for driving the adjusting screw 26 to rotate is installed at the bottom of the auxiliary frame 7, and a limiting groove matching the slider 24 is opened on the inner side of the auxiliary frame 7.

[0038] Depending on the different tilt angles required for different foods, the PLC controller adjusts the extension and retraction distance of the hydraulic cylinder 18 output end, while simultaneously activating the servo motor 25. This causes the servo motor 25 output end to drive the adjusting screw 26 downward, thereby adjusting the contact position between the arched block 14 and the roller 16. This changes the upward movement distance of the T-shaped seat 15, thus adjusting the tilt angle of the filter screen 3. This allows the device to handle everything from crushed puffed foods (10°-15° low-intensity turning) to high-viscosity braised products and fried pastries (30°-45° high-intensity turning), thereby improving the overall practicality of the device.

[0039] Please see Figures 1-9 The jet auxiliary device, located inside the conveyor frame 1 and below the conveyor mechanism 2, is used to spray gas onto the bottom of the food. The jet auxiliary device includes two sets of positioning seats 27 fixedly connected to the top of each set of auxiliary frames 7. Each set of positioning seats 27 has multiple seats. A connecting shaft 19 is rotatably connected to the inner side of each positioning seat 27. One end of the connecting shaft 19 extends through to the outside of the positioning seat 27 and is equipped with an air distribution pipe 4, which is located below the filter screen 3. The jet auxiliary device also includes a support seat 8 fixedly connected to one end of the auxiliary frame 7. Two straight racks 9 are slidably connected to the top of the support seat 8. A spur gear 20 meshing with the straight racks 9 is fixedly connected to one end of the connecting shaft 19. A positioning plate 31 is fixedly connected to the top of the support seat 8. A connecting block 32 is fixedly connected to one side of the straight racks 9. A power spring 30 is installed between the connecting block 32 and the positioning plate 31. The device also includes an auxiliary rod 22 fixedly connected to the front end of the rack 9. An auxiliary wheel 23 is rotatably connected to the front end of the auxiliary rod 22. A hydraulic cylinder 18 is fixedly connected to one side of the auxiliary frame 7. A power plate 17 is fixedly connected to the output end of the hydraulic cylinder 18. A trapezoidal block 21 is fixedly connected to the top of the power plate 17 and is positioned between two auxiliary wheels 23. A position adjuster is provided between the positioning seat 27 and the air distribution pipe 4. The position adjuster includes: an adjusting block 29 slidably connected to the inner side of the connecting shaft 19. A power wheel 33 is rotatably connected to the bottom of the adjusting block 29. A connecting spring 34 is installed between the adjusting block 29 and the connecting shaft 19. An arc-shaped block 28 is provided. Multiple arc-shaped blocks 28 are provided. Each arc-shaped block 28 is correspondingly positioned at the bottom of a power wheel 33. The curvature of the two sets of arc-shaped blocks 28 at the top of each set of auxiliary frames 7 decreases sequentially from the center to the edge.

[0040] The bottom of the air distribution pipe 4 is connected to an external air supply pipe via a flexible hose. Since this is existing technology, it is not shown in this solution. During the food conveying process, cold air is sprayed upward through the air distribution pipe 4, causing the filter screen 3 to sweep the food through the bottom airflow during its local reciprocating oscillation, forming an air film at the bottom. This further reduces the food adhesion phenomenon and reduces the effective contact area between the material and the filter screen 3. Together with the periodic mechanical flipping of the filter screen 3, it forms a dual anti-adhesion system of "air film isolation + physical flipping", which further reduces the adhesion and scrap rate of ultra-high viscosity foods such as glutinous rice cake and braised pig's trotters. At the same time, the directional blowing of cold air can quickly remove the heat from the bottom of the material. Combined with the hollow structure, the overall cooling speed is further improved, and food residue in the filter screen holes can be blown out from all directions, thereby improving the overall practicality of the device.

[0041] Multiple auxiliary frames 7 are fixed to each other in pairs, and hydraulic cylinders 18 are only installed on the two auxiliary frames 7 at the very end and the very front. The power plates 17 on one side of each auxiliary frame 7 are fixed to each other in pairs. Under the control of the PLC controller, the output end of the hydraulic cylinder 18 performs intermittent reciprocating extension and retraction, matching the movement path of the T-shaped seat 15. When the T-shaped seat 15 moves from the lowest point to the highest point of the arched block 14, the output end of the hydraulic cylinder 18 extends, and vice versa. During the extension of the output end of the hydraulic cylinder 18, it pushes the trapezoidal block 21 to move upward, and then pushes the auxiliary wheel 23 through the inclined surfaces on both sides via the auxiliary rod 22. The rack 9 moves laterally, which in turn drives a set of spur gears 20 to rotate an air distribution pipe 4 via an auxiliary wheel 23. This allows the air distribution pipe 4 at the top of each auxiliary frame 7 to adapt to the tilting state of every two filter discs 3. When the filter discs 3 tilt, the air distribution pipe 4 can tilt and blow air in the direction of the tilt, ensuring that the bottom of the material is continuously and uninterruptedly covered by an air film throughout the entire turning process. This improves the stability and reliability of the "air film isolation + mechanical turning" dual anti-adhesion system, while optimizing airflow utilization and enhancing the cooling effect at the bottom of the material and the ability to remove filter residue.

[0042] Because the curvature of the two sets of arc-shaped blocks 28 at the top of each auxiliary frame 7 decreases sequentially from the center to the edge, the power wheel 33 moves upward along the inner arc surface of the arc-shaped block 28 during the rotation of the connecting shaft 19. This, in turn, pushes the air distribution pipe 4 to tilt and move in the direction of rotation of the filter screen 3. As the filter screen 3 tilts up, it performs a stepped tilting air blowing operation corresponding to each set of filter screen 3 below. This ensures that the air jet direction is always perpendicular to all positions on the bearing surface of the filter screen 3, forming a continuous, uniform, and stable air film on the entire bearing surface. This eliminates the risk of weak or interrupted air film in the edge area and significantly improves the overall effect of air film isolation and anti-adhesion. At the same time, the attached airflow pattern greatly reduces airflow scattering loss and improves airflow utilization. Under the same air supply conditions, it can further enhance the cooling effect at the bottom of the material and more efficiently blow away food residue in the filter screen pores, keeping the filter screen breathable.

[0043] The above description is merely 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 processing conveying device with preservation function, characterized in that, include: A conveyor frame (1) and two sets of conveying mechanisms (2) installed inside the conveyor frame (1), with a gap between the two sets of conveying mechanisms (2); The filter screen (3) is provided in multiple sets. The multiple sets of filter screens (3) are arranged on the top of the conveying mechanism (2). Each set of filter screens (3) has two screens. The top of each filter screen (3) is provided with an inclined surface, so that each set of filter screens (3) is combined to form a concave shape. The top of each set of filter screens (3) is provided with a state adjuster, so that each set of filter screens (3) can switch between concave and arched shapes. An air jet auxiliary device, located inside the conveyor frame (1) and below the conveyor mechanism (2), is used to spray gas onto the bottom of the food.

2. The food processing conveying device with preservation function according to claim 1, characterized in that, The state adjuster includes a T-shaped seat (15) disposed below each pair of filter trays (3). A first auxiliary seat (13) is fixedly connected to the top of the T-shaped seat (15). A set of suspension seats (10) is fixedly connected to the bottom of each filter tray (3). A connecting rod (12) is hinged between the suspension seat (10) and the first auxiliary seat (13). A support rod (11) is disposed below the T-shaped seat (15). Multiple arched blocks (14) are fixedly connected at equal intervals to the top of the support rod (11). The support rod (11) is disposed in the gap between the two sets of conveying mechanisms (2). (15) has a roller (16) rotatably connected to its bottom, and the roller (16) abuts against the top of the support rod (11). The top of the conveying mechanism (2) is fixedly connected to a plurality of second auxiliary seats (35), and each second auxiliary seat (35) is correspondingly arranged on both sides of the filter screen (3). Each side of the filter screen (3) is fixedly connected to a rotating shaft (6), and one end of the rotating shaft (6) passes through to the outside of the second auxiliary seat (35) and is rotatably connected to the second auxiliary seat (35). A torsion spring (5) is installed between the rotating shaft (6) and the second auxiliary seat (35).

3. A food processing conveying device with preservation function according to claim 2, characterized in that, The state adjuster also includes multiple sets of auxiliary frames (7) fixedly connected to the inner side of the conveyor frame (1). One of the auxiliary frames (7) has a slider (24) slidably connected to its inner side, and the slider (24) is fixedly connected to the support rod (11). An adjusting screw (26) is rotatably connected to the inner side of the auxiliary frame (7), and the slider (24) is threadedly connected to the outer wall of the adjusting screw (26). A servo motor (25) for driving the adjusting screw (26) to rotate is installed at the bottom of the auxiliary frame (7), and a limiting groove matching the slider (24) is opened on the inner side of the auxiliary frame (7).

4. A food processing conveying device with preservation function according to claim 3, characterized in that, The jet auxiliary device includes two sets of positioning seats (27) fixedly connected to the top of each set of auxiliary frames (7). Each set of positioning seats (27) has multiple seats. Each positioning seat (27) has a connecting shaft (19) rotatably connected to its inner side. One end of the connecting shaft (19) extends through to the outside of the positioning seat (27) and is provided with an air distribution pipe (4). The air distribution pipe (4) is located below the filter screen (3).

5. A food processing conveying device with preservation function according to claim 4, characterized in that, The jet auxiliary device also includes a support base (8) fixedly connected to one end of the auxiliary frame (7). Two straight racks (9) are slidably connected to the top of the support base (8). A spur gear (20) meshing with the straight racks (9) is fixedly connected to one end of the connecting shaft (19). A positioning plate (31) is fixedly connected to the top of the support base (8). A connecting block (32) is fixedly connected to one side of the straight rack (9). A power spring (30) is installed between the connecting block (32) and the positioning plate (31).

6. A food processing conveying device with preservation function according to claim 5, characterized in that, The jet auxiliary device also includes an auxiliary rod (22) fixedly connected to the front end of the rack (9). An auxiliary wheel (23) is rotatably connected to the front end of the auxiliary rod (22). A hydraulic cylinder (18) is fixedly connected to one side of the auxiliary frame (7). A power plate (17) is fixedly connected to the output end of the hydraulic cylinder (18). A trapezoidal block (21) is fixedly connected to the top of the power plate (17), and the trapezoidal block (21) is disposed between the two auxiliary wheels (23).

7. A food processing conveying device with preservation function according to claim 6, characterized in that, A position adjuster is provided between the positioning seat (27) and the air distribution pipe (4), the position adjuster comprising: An adjusting block (29) is slidably connected to the inner side of the connecting shaft (19). A power wheel (33) is rotatably connected to the bottom of the adjusting block (29). A connecting spring (34) is installed between the adjusting block (29) and the connecting shaft (19). Arc-shaped blocks (28), multiple arc-shaped blocks (28) are provided, and each arc-shaped block (28) is correspondingly provided at the bottom of one of the power wheels (33).

8. A food processing conveying device with preservation function according to claim 7, characterized in that, The curvature of the two sets of arc blocks (28) at the top of each set of auxiliary frames (7) decreases sequentially from the center to the edge.

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