Conveying system for food sealed packaging

Abstract

The conveying system comprises a U-shaped mounting frame, a plurality of supporting seats are mounted at the lower end of the U-shaped mounting frame, two transmission rollers are rotationally connected between the inner walls of the front side and the rear side of the U-shaped mounting frame, a conveying belt is jointly wound on the two transmission rollers, and a plurality of hole bodies are formed in the conveying belt; the driving mechanism is used for driving one driving roller to rotate, the driving mechanism comprises a motor installed on the rear side of the U-shaped installation frame, and the rear end of the driving roller located on the right side extends to the outside and is in transmission connection with an output shaft of the motor through a transmission assembly; and the crushed material collecting mechanism is used for collecting chippings in the food in the conveying process. When the conveying system is used, chippings mingled in products can be effectively removed, powder attached to the conveying belt can also be removed, hot air disinfection is carried out at the same time, and the safety of food transportation is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of food sealed packaging, and particularly to a conveying system for food sealed packaging. Background Art

[0002] The food industry is an important part of the national economy, and food packaging is a key link to ensure food safety, extend the shelf life of food, and facilitate the circulation of food. In the field of snack production, in the manufacturing process of products such as crispy rice cakes, small twist doughnuts, and crispy corn snacks, food conveying systems play a crucial role. During the process of conveying food from the production line to the packaging line, these systems need to ensure the cleanliness, safety, and conveying efficiency of the food;

[0003] Traditional food conveying systems mainly focus on the efficient conveyance of food, but there are obvious deficiencies in the disinfection of the conveying part. Especially in the snack production process, due to the characteristics of the food itself (such as being fragile and prone to producing debris), there are often some food debris and some falling powders during the conveying process. If the debris directly follows the product for packaging, it will affect the quality of the product after actual packaging, and the powder adheres to the conveying system, which is likely to contaminate the conveyor belt, resulting in an impact on the overall food safety. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a conveying system for food sealed packaging. When in use, this conveying system can effectively remove the debris mixed in the product, and can also remove the powder adhering to the conveyor belt, and simultaneously perform hot air disinfection to ensure the safety of food transportation.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A conveying system for food sealing packaging, comprising a U-shaped mounting frame, a plurality of support seats are installed at the lower end of the U-shaped mounting frame, two transmission rollers are rotatably connected between the inner walls of the front and rear sides of the U-shaped mounting frame, a conveying belt is wound around the two transmission rollers, and a plurality of holes are opened on the conveying belt; a driving mechanism, the driving mechanism is used to drive one transmission roller to rotate, the driving mechanism comprises a motor installed at the rear side of the U-shaped mounting frame, the rear end of the transmission roller located on the right side extends to the outside, and is connected to the output shaft of the motor through a transmission assembly; A material collecting mechanism, the debris collecting mechanism is used to collect debris in food during transportation, the debris collecting mechanism includes a first inclined guide plate fixedly connected between the front and rear inner walls of the U-shaped mounting frame, and a strip-shaped discharge port is opened on the rear inner wall of the U-shaped mounting frame; a dust collecting mechanism, the dust collecting mechanism is used to collect diffused dust; a disinfection mechanism, the disinfection mechanism is used to sterilize the conveyor belt at high temperature to ensure the safety of food transportation; a shaking mechanism, the shaking mechanism is used to improve the effect of debris collection and allow adhered debris or seasoning to fall off.

[0007] Preferably, the transmission assembly includes two pulleys, the rear end of the transmission roller located on the left side extends to the outside, the two pulleys are respectively installed on the rear ends of the two transmission rollers, and the two pulleys are connected by belt transmission.

[0008] Preferably, the dust collection mechanism includes a filter box fixedly connected to the rear side of the U-shaped mounting frame, a filter screen is vertically arranged in the filter box, a first piston cylinder is fixedly connected to the front side of the U-shaped mounting frame, a first piston plate which can slide up and down is arranged in the first piston cylinder, the front end of the transmission roller located on the left side extends to the outside and is fixedly connected to a rotating plate, the front eccentric part of the rotating plate is rotatably connected to the lower end of the first piston plate through a connecting rod, and the inner top space of the first piston cylinder is connected to the rear space of the filter box through a first one-way tube.

[0009] Preferably, the front space of the filter box is connected with a connecting pipe, a first hollow tube is fixedly connected between the front and rear inner walls of the U-shaped mounting frame, a plurality of air inlets are provided at the inner bottom of the two first hollow tubes, and the other end of the connecting pipe is connected with the two first hollow tubes through two branch pipes.

[0010] Preferably, the front space of the filter box is connected with a connecting pipe, a first hollow tube is fixedly connected between the front and rear inner walls of the U-shaped mounting frame, a plurality of air inlets are provided at the inner bottom of the two first hollow tubes, and the other end of the connecting pipe is connected with the two first hollow tubes through two branch pipes.

[0011] Preferably, a second inclined guide plate is fixedly connected between the front and rear inner walls of the U-shaped mounting frame, and a guide hopper is provided at the inner bottom of the U-shaped mounting frame.

[0012] Preferably, the jitter mechanism includes a plurality of jitter components, one of the jitter components is installed below the U-shaped tube, and the remaining jitter components are installed above the U-shaped tube. The jitter component includes a connecting cylinder installed on the U-shaped tube. One side of each connecting cylinder close to the U-shaped tube is communicated with the U-shaped tube through a communication port. A piston block that can slide up and down is arranged in each connecting cylinder. One side of each piston block close to the communication port is elastically connected to the inner wall of the corresponding connecting cylinder through a first spring. The other side of each piston block is fixedly connected with a connecting rod, and the other end of each connecting rod is fixedly connected with a jitter rod.

[0013] Preferably, the jitter mechanism includes a plurality of jitter components, one of the jitter components is installed below the U-shaped tube, and the remaining jitter components are installed above the U-shaped tube. The jitter component includes a connecting cylinder installed on the U-shaped tube. One side of each connecting cylinder close to the U-shaped tube is communicated with the U-shaped tube through a communication port. A piston block that can slide up and down is arranged in each connecting cylinder. One side of each piston block close to the communication port is elastically connected to the inner wall of the corresponding connecting cylinder through a first spring. The other side of each piston block is fixedly connected with a connecting rod, and the other end of each connecting rod is fixedly connected with a jitter rod.

[0014] Preferably, a first sealing plate is arranged at the lower end of the connecting pipe inside the filter box. The upper end of the first sealing plate is elastically connected to the inner top of the filter box through a third spring. The rear side of the U-shaped mounting frame is fixedly connected with a mounting plate, and a first collection box is installed on the mounting plate. The first collection box is filled with water. The inner bottom space of the filter box is communicated with the inside of the first collection box through a rectangular blanking port. A second sealing plate is arranged at the lower end of the rectangular blanking port. The lower end of the second sealing plate is elastically connected to the inner bottom of the first collection box through a fourth spring.

[0015] Preferably, one-way valves are installed at one end of the first one-way pipe close to the first piston cylinder, the second one-way pipe, the third one-way pipe and the one-way port. The flow direction of the one-way valve in the first one-way pipe is from the filter box into the first piston cylinder unidirectionally. The flow direction of the one-way valve in the second one-way pipe is from the first piston cylinder into the U-shaped tube unidirectionally. The flow direction of the one-way valve in the third one-way pipe is from the second piston cylinder into the air storage cylinder unidirectionally. The flow direction of the one-way valve inside the one-way port is from top to bottom.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The food is transported by the motor-driven transmission roller. At the same time, the rotation of the transmission roller is used in conjunction with the rotating plate, connecting rod, piston plate and other components to generate intermittent one-way gas flow. The gas is heated by the electric heating wire to form hot air to sterilize the conveyor belt, ensuring the safety of food during transportation and effectively killing bacteria and viruses on the conveyor belt.

[0018] 2. The intermittent negative pressure difference generated by the high-pressure airflow in the U-shaped tube can cause the conveyor belt to vibrate. This vibration not only helps the food debris to fall through the holes on the conveyor belt to ensure the quality of subsequent packaging, but also allows the food seasonings adhering to the conveyor belt to separate from the belt, thereby keeping the conveyor belt clean and extending its service life.

[0019] 3. The one-way gas flow generated by the negative pressure difference can collect the seasoning dust diffused when the food is shaken, avoiding the dust from spreading to the surrounding environment and keeping the working environment clean and hygienic.

[0020] 4. When the first piston plate reciprocates up and down, it drives the second piston plate to move synchronously, generating a one-way gas flow, gathering the gas in the gas cylinder, and after use, through the conduction of the solenoid valve and the elastic action of the spring, the gas is pressed into the rear space of the filter box for backblowing, automatically clearing the filter screen, avoiding blockage of the filter screen, and ensuring smooth use next time.

[0021] 5. When the gas enters the filter box, it pushes the second sealing plate downward to discharge the powder mixed with the high-pressure gas into the water body, realizing the automatic discharge operation of the powder, eliminating the need for the user to frequently clean the filter box, and reducing the user's labor intensity.

[0022] To sum up, the food conveying and disinfection device provided by the present invention not only has the functions of efficient hot air disinfection, conveyor belt shaking cleaning, seasoning dust collection, etc., but also has the characteristics of automatic dredging of the filter box and automatic discharge of powder, which significantly improves the efficiency and safety of food conveying and reduces the labor intensity of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a conveying system for food sealing packaging proposed by the present invention;

[0024] Figure 2 for Figure 1 A cross-sectional schematic diagram of the cooperation between the first piston cylinder and the second piston cylinder;

[0025] Figure 3 for Figure 1 Schematic diagram of the rear structure;

[0026] Figure 4 for Figure 1Schematic cross-sectional structure diagram;

[0027] Figure 5 Is an enlarged schematic diagram of a U-shaped tube;

[0028] Figure 6 Is Figure 5 Partial cross-sectional view of;

[0029] Figure 7 Is a schematic diagram of the structural cooperation of a filter box, an air storage box, a collection box, etc.;

[0030] Figure 8 Is Figure 7 Cross-sectional view of at the air storage cylinder of;

[0031] Figure 9 Is Figure 7 Cross-sectional view of at the filter box of;

[0032] In the figure: 1 U-shaped mounting frame, 2 feed hopper, 3 conveyor belt, 4 driving roller, 5 first piston cylinder, 6 rotating plate, 7 connecting pipe, 8 second piston cylinder, 9 first hollow pipe, 10 first one-way pipe, 11 second one-way pipe, 12 motor, 13 transmission assembly, 14 first collection box, 15 discharge port, 16 filter box, 17 air storage cylinder, 18 strip-shaped opening, 19 release pipe, 20 third one-way pipe, 21 one-way opening, 22 first piston plate, 23 second piston plate, 24 U-shaped rod, 25 filter net, 26 connecting rod, 27 U-shaped tube, 28 connecting cylinder, 29 connecting rod, 30 shaking rod, 31 communication port, 32 first spring, 33 piston block, 34 second spring, 35 first sealing plate, 36 third spring, 37 rectangular blanking port, 38 second sealing plate, 39 fourth spring, 40 first inclined guide plate, 41 second inclined guide plate, 42 heating wire, 43 connecting pipe, 44 second hollow pipe, 45 third piston plate. Specific implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] Refer to Figures 1 - 9 , A conveying system for food sealed packaging, including a U-shaped mounting frame 1, a plurality of support seats are installed at the lower end of the U-shaped mounting frame 1, two driving rollers 4 are rotatably connected between the front and rear inner walls of the U-shaped mounting frame 1, a conveyor belt 3 is wound around the two driving rollers 4 together, a plurality of holes are provided on the conveyor belt 3, and the use of the plurality of holes can conveniently pass the broken food through for centralized collection. A second inclined guide plate 41 is fixedly connected between the front and rear inner walls of the U-shaped mounting frame 1, and a feed hopper 2 is arranged at the inner bottom of the U-shaped mounting frame 1.

[0035] As an embodiment of the present invention, it further includes a driving mechanism for driving a single driving roller 4 to rotate. The driving mechanism includes a motor 12 installed at the rear side of the U-shaped mounting frame 1. The rear end of the driving roller 4 on the right side extends to the outside and is drivingly connected to the output shaft of the motor 12 through a transmission assembly 13. The transmission assembly 13 includes two belt pulleys. The rear end of the driving roller 4 on the left side extends to the outside. The two belt pulleys are respectively installed on the rear ends of the two driving rollers 4, and the two belt pulleys are drivingly connected by a belt. In this way, after the motor 12 is started, the two driving rollers 4 can rotate synchronously, so that the conveying belt 3 rotates to convey food.

[0036] As an embodiment of the present invention, it further includes a scrap collecting mechanism for collecting the scraps in the food during the conveying process. The scrap collecting mechanism includes a first inclined guide plate 40 fixedly connected between the front and rear inner walls of the U-shaped mounting frame 1, and a strip-shaped discharge port 15 is opened on the rear inner wall of the U-shaped mounting frame 1.

[0037] As an embodiment of the present invention, it further includes a dust collecting mechanism for collecting the diffused dust. The dust collecting mechanism includes a filter box 16 fixedly connected to the rear side of the U-shaped mounting frame 1. A filter net 25 is vertically arranged in the filter box 16, and the filter net 25 can be used to centrally collect the dust. A first piston cylinder 5 is fixedly connected to the front side of the U-shaped mounting frame 1. A first piston plate 22 that can slide up and down is arranged in the first piston cylinder 5. The front end of the driving roller 4 on the left side extends to the outside and is fixedly connected to a rotating plate 6. An eccentric position on the front side of the rotating plate 6 is rotationally connected to the lower end of the first piston plate 22 through a connecting rod 26. When the rotating plate 6 rotates, it will drive the first piston plate 22 to reciprocate up and down. The inner top space of the first piston cylinder 5 is communicated with the rear side space of the filter box 16 through a first one-way pipe 10. A connecting pipe 43 is communicated with the front side space of the filter box 16. A first hollow pipe 9 is fixedly connected between the front and rear inner walls of the U-shaped mounting frame 1. A plurality of air inlets are opened at the inner bottom of the two first hollow pipes 9. The other end of the connecting pipe 43 is communicated with the two first hollow pipes 9 through two branch pipes.

[0038] As an embodiment of the present invention, it further includes a disinfection mechanism for high-temperature sterilization of the conveying belt 3 to ensure the safety of food conveying. The disinfection mechanism includes a U-shaped pipe 27 arranged inside the U-shaped mounting frame 1. The inner top space of the first piston cylinder 5 is communicated with one end of the U-shaped pipe 27 through a second one-way pipe 11. A second hollow pipe 44 is fixedly connected between the front and rear inner walls of the U-shaped mounting frame 1. A plurality of exhaust ports are opened at the inner top of the second hollow pipe 44. An electric heating wire 42 is installed inside the second hollow pipe 44. The other end of the U-shaped pipe 27 is communicated with the second hollow pipe 44 through a connecting pipe 7.

[0039] The shaking mechanism is used to improve the effect of debris collection and can make the adhered debris or seasonings fall off. The shaking mechanism includes a plurality of shaking components. One of the shaking components is installed below the U-shaped tube 27, and the remaining shaking components are installed above the U-shaped tube 27. Each shaking component includes a connecting cylinder 28 installed on the U-shaped tube 27. One side of each connecting cylinder 28 close to the U-shaped tube 27 is communicated with the U-shaped tube 27 through a communication port 31. A piston block 33 that can slide up and down is arranged in each connecting cylinder 28. One side of each piston block 33 close to the communication port 31 is elastically connected to the inner wall of the corresponding connecting cylinder 28 through a first spring 32. The other side of each piston block 33 is fixedly connected with a connecting rod 29, and the other end of each connecting rod 29 is fixedly connected with a shaking rod 30. A gas storage cylinder 17 is fixedly connected to the rear side of the U-shaped mounting frame 1. A third piston plate 45 that can slide back and forth is arranged in the gas storage cylinder 17. A strip-shaped opening 18 is opened on the side wall of the rear space of the gas storage cylinder 17. A second piston cylinder 8 is fixedly connected to the front side of the U-shaped mounting frame 1. A second piston plate 23 that can slide up and down is arranged in the second piston cylinder 8. The second piston plate 23 and the first piston plate 22 are fixedly connected through a U-shaped rod 24. The inner top space of the second piston cylinder 8 is communicated with a one-way port 21. The inner top space of the second piston cylinder 8 is communicated with the front space of the gas storage cylinder 17 through a third one-way tube 20. The front space of the gas storage cylinder 17 is communicated with the inside of the first one-way tube 10 through a release tube 19. A normally open solenoid valve is installed inside the release tube 19, and the normally open solenoid valve is opened and closed synchronously with the motor 12.

[0040] As an implementation manner of the present invention, a first sealing plate 35 is arranged at the lower end of the connecting pipe 43 inside the filter box 16. The upper end of the first sealing plate 35 is elastically connected to the inner top of the filter box 16 through a third spring 36. A mounting plate is fixedly connected to the rear side of the U-shaped mounting frame 1. A first collection box 14 is installed on the mounting plate. The first collection box 14 is filled with water. Further, a second collection box is also placed on the mounting plate. The second collection box is located in front of the first collection box 14 and cooperates with the discharge port 15. The inner bottom space of a filter box 16 is also placed on the mounting plate and is communicated with the inside of the first collection box 14 through a rectangular blanking port 37. A second sealing plate 38 is arranged at the lower end of the rectangular blanking port 37. The lower end of the second sealing plate 38 is elastically connected to the inner bottom of the first collection box 14 through a fourth spring 39. Check valves are installed inside the first one-way tube 10 near the end close to the first piston cylinder 5, the second one-way tube 11, the third one-way tube 20, and the one-way port 21. The flow direction of the check valve in the first one-way tube 10 is from the filter box 16 into the first piston cylinder 5 unidirectionally. The flow direction of the check valve in the second one-way tube 11 is from the first piston cylinder 5 into the U-shaped tube 27 unidirectionally. The flow direction of the check valve in the third one-way tube 20 is from the second piston cylinder 8 into the gas storage cylinder 17 unidirectionally. The flow direction of the check valve inside the one-way port 21 is from top to bottom.

[0041] In the present invention, when it is necessary to convey food, the food is placed into the right side part of the conveyor belt 3. At this time, the motor 12 and the heating wire 42 are started. After the motor 12 is started, it will drive the two driving rollers 4 to rotate synchronously through the transmission assembly 13 to realize the conveyance of food. During this process, the rotation of the left driving roller 4 will, with the cooperation of the rotating plate 6 and the connecting rod 26, cause the first piston plate 22 to reciprocate up and down. By using the check valves inside the first one-way tube 10 and the second one-way tube 11, intermittent one-way gas flow can be generated in the space behind the filter box 16, the first one-way tube 10, the top space of the first piston cylinder 5, the second one-way tube 11, the U-shaped tube 27, and the second hollow tube 44. Since the heating wire 42 is started, the gas entering the second hollow tube 44 will be heated and finally discharged from a plurality of exhaust ports. By adopting this method, the hot air discharged performs hot air disinfection on the rotating conveyor belt 3 to ensure its actual safety;

[0042] When passing through the intermittent air flow in the U-shaped tube 27, since the high-pressure air flow will generate a lower air pressure, the lower air pressure will cause a plurality of piston blocks 33 to move closer to the U-shaped tube 27 by using the negative pressure difference and compress the first spring 32. When the air flow disappears, under the elastic action of the first spring 32, the piston blocks 33 will move back and use the connecting rod 29 and the shaking rod 30 to impact the inner side of the conveyor belt 3, impact it, and cause the conveyor belt 3 to shake. For the upper conveyor belt 3, this shaking can shake the food, making it easier for the broken food to fall through the plurality of holes on the conveyor belt 3 to the first inclined diversion plate 40 and be discharged from the discharge port 15 for collection. For the lower conveyor belt 3, this shaking can separate the food seasonings adhered to the conveyor belt 3 from the conveyor belt 3 to ensure the cleanliness of the conveyor belt 3;

[0043] It should be noted that after the gas in the filter box 16 is pumped away, due to the negative pressure difference, one-way flow can be generated in the space above the conveyor belt 3, the air inlet, the first hollow tube 9, the connecting pipe 43, and the inside of the filter box 16. This one-way gas flow can collect the seasoning dust diffused during the shaking of the food to prevent the dust from spreading into the surrounding environment;

[0044] In addition, when the leftmost first piston plate 22 reciprocates up and down, the U-shaped rod 24 is used to make the rightmost second piston plate 23 reciprocate up and down. The reciprocating up and down movement of the second piston plate 23, in cooperation with the use of the one-way port 21 and the one-way valve inside the third one-way pipe 20, will generate one-way gas flow among the outside, the second piston cylinder 8 and the air storage cylinder 17. In this way, the gas will accumulate in the front space of the air storage cylinder 17, pushing the third piston plate 45 to move backward and stretching the second spring 34. When the device is used up each time, the transportation of food can be stopped, and the motor 12 can be continuously started for a period of time. Eventually, the motor 12 is turned off, and at the same time, the normally open solenoid valve is de-energized and conducts electricity. Under the elastic action of the second spring 34, the third piston plate 45 moves forward, and the gas is pressed into the rear space of the filter box 16 through the release pipe 19, and is blown back from the rear side of the filter net 25 to dredge it, ensuring the next use. Meanwhile, when the gas enters the filter box 16, the internal air pressure increases, pushing the second sealing plate 38 to move downward and compressing the fourth spring 39. The high-pressure gas will carry the collected powder and discharge it into the water body for powder discharge operation, without the user frequently cleaning the filter box 16.

[0045] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, should be covered by the protection scope of the present invention.

Claims

1. A conveying system for food sealed packaging, characterized in that, Including: A U-shaped mounting frame (1), multiple support seats are installed at the lower end of the U-shaped mounting frame (1), two driving rollers (4) are rotatably connected between the inner walls on the front and rear sides of the U-shaped mounting frame (1), a conveying belt (3) is wound around the two driving rollers (4) together, and a plurality of holes are provided on the conveying belt (3); A driving mechanism for driving one of the driving rollers (4) to rotate. The driving mechanism includes a motor (12) installed at the rear side of the U-shaped mounting frame (1). The rear end of the driving roller (4) on the right side extends to the outside and is in transmission connection with the output shaft of the motor (12) through a transmission assembly (13); A broken material collection mechanism for collecting debris in food during the conveying process. The broken material collection mechanism includes a first inclined diversion plate (40) fixedly connected between the front and rear inner walls of the U-shaped mounting frame (1), and a strip-shaped discharge port (15) is provided on the rear inner wall of the U-shaped mounting frame (1); A dust collection mechanism for collecting diffused dust; A disinfection mechanism for performing high-temperature sterilization on the conveying belt (3) to ensure the safety of food conveying; A shaking mechanism for improving the effect of debris collection and allowing the adhered debris or seasonings to fall off.

2. The conveying system for food sealed packaging according to claim 1, wherein The transmission assembly (13) includes two belt pulleys. The rear end of the driving roller (4) on the left side extends to the outside. The two belt pulleys are respectively installed at the rear ends of the two driving rollers (4), and the two belt pulleys are in transmission connection through a belt.

3. The conveying system for food sealed packaging according to claim 1, characterized in that, The dust collection mechanism includes a filter box (16) fixedly connected to the rear side of the U-shaped mounting frame (1). A filter net (25) is vertically arranged in the filter box (16). A first piston cylinder (5) is fixedly connected to the front side of the U-shaped mounting frame (1). A first piston plate (22) that can slide up and down is arranged in the first piston cylinder (5). The front end of the driving roller (4) on the left side extends to the outside and is fixedly connected to a rotating plate (6). The eccentric part on the front side of the rotating plate (6) is rotatably connected to the lower end of the first piston plate (22) through a connecting rod (26). The inner top space of the first piston cylinder (5) is communicated with the rear side space of the filter box (16) through a first one-way pipe (10).

4. A conveying system for food sealed packaging according to claim 3, wherein, The front side space of the filter box (16) is communicated with a connecting pipe (43). A first hollow pipe (9) is fixedly connected between the front and rear inner walls of the U-shaped mounting frame (1). A plurality of air inlets are provided at the inner bottom of the two first hollow pipes (9). The other end of the connecting pipe (43) is communicated with the two first hollow pipes (9) through two branch pipes.

5. The conveying system for food sealed packaging according to claim 3, characterized in that, The disinfection mechanism includes a U-shaped tube (27) arranged inside a U-shaped mounting frame (1). The inner top space of the first piston cylinder (5) is communicated with one end of the U-shaped tube (27) through a second one-way tube (11). A second hollow tube (44) is fixedly connected between the front and rear inner walls of the U-shaped mounting frame (1). A plurality of exhaust ports are provided at the inner top of the second hollow tube (44). An electric heating wire (42) is installed inside the second hollow tube (44). The other end of the U-shaped tube (27) is communicated with the second hollow tube (44) through a connecting tube (7).

6. The conveying system for food sealed packaging according to claim 1, wherein, A second inclined deflector (41) is fixedly connected between the front and rear inner walls of the U-shaped mounting frame (1). A feed hopper (2) is arranged at the inner bottom of the U-shaped mounting frame (1).

7. A conveying system for food sealed packaging according to claim 5, characterized in that, The shaking mechanism includes a plurality of shaking components. One of the shaking components is installed below the U-shaped tube (27), and the remaining shaking components are installed above the U-shaped tube (27). The shaking component includes a connecting cylinder (28) installed on the U-shaped tube (27). One side of each connecting cylinder (28) close to the U-shaped tube (27) is communicated with the U-shaped tube (27) through a communication port (31). A piston block (33) that can slide up and down is arranged inside each connecting cylinder (28). One side of each piston block (33) close to the communication port (31) is elastically connected to the inner wall of the corresponding connecting cylinder (28) through a first spring (32). The other side of each piston block (33) is fixedly connected to a connecting rod (29). The other end of each connecting rod (29) is fixedly connected to a shaking rod (30).

8. A conveying system for food sealed packaging according to claim 7, characterized in that, A gas storage cylinder (17) is fixedly connected to the rear side of the U-shaped mounting frame (1). A third piston plate (45) that can slide back and forth is arranged inside the gas storage cylinder (17). A strip-shaped port (18) is provided on the side wall of the rear space of the gas storage cylinder (17). A second piston cylinder (8) is fixedly connected to the front side of the U-shaped mounting frame (1). A second piston plate (23) that can slide up and down is arranged inside the second piston cylinder (8). The second piston plate (23) is fixedly connected to the first piston plate (22) through a U-shaped rod (24). The inner top space of the second piston cylinder (8) is communicated with a one-way port (21). The inner top space of the second piston cylinder (8) is communicated with the front space of the gas storage cylinder (17) through a third one-way tube (20). The front space of the gas storage cylinder (17) is communicated with the inside of the first one-way tube (10) through a release tube (19). A normally open solenoid valve is installed inside the release tube (19). The normally open solenoid valve is opened and closed synchronously with the motor (12).

9. The conveying system for food sealed packaging according to claim 8, wherein, The connecting pipe (43) is provided with a first sealing plate (35) at the lower end inside the filter box (16). The upper end of the first sealing plate (35) is elastically connected to the inner top of the filter box (16) through a third spring (36). The rear side of the U-shaped mounting frame (1) is fixedly connected with a mounting plate, and a first collection box (14) is mounted on the mounting plate. The first collection box (14) is filled with water. The inner bottom space of the filter box (16) is communicated with the inside of the first collection box (14) through a rectangular blanking port (37). The lower end of the rectangular blanking port (37) is provided with a second sealing plate (38). The lower end of the second sealing plate (38) is elastically connected to the inner bottom of the first collection box (14) through a fourth spring (39).

10. A conveying system for food sealed packaging according to claim 8, characterized in that, One-way valves are installed inside the first one-way pipe (10) near one end of the first piston cylinder (5), the second one-way pipe (11), the third one-way pipe (20) and the one-way port (21). The flow direction of the one-way valve in the first one-way pipe (10) is from the filter box (16) into the first piston cylinder (5) unidirectionally. The flow direction of the one-way valve in the second one-way pipe (11) is from the first piston cylinder (5) into the U-shaped pipe (27) unidirectionally. The flow direction of the one-way valve in the third one-way pipe (20) is from the second piston cylinder (8) into the air storage cylinder (17) unidirectionally. The flow direction of the one-way valve inside the one-way port (21) is from top to bottom.

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