Cooling and conveying device for puffed food

Abstract

The invention relates to the technical field of puffed food processing, and discloses a puffed food cooling and conveying device which comprises a conveying belt, a cooling bin is fixedly connected to the outer wall of the top of the conveying belt, a plurality of gas collection tanks are embedded in the outer wall of the top of the cooling bin at equal intervals, and the top of each gas collection tank is in sealed sliding connection with two first sliding rods; a one-way air inlet is formed in the outer wall of one side of the upper portion of the air collecting box, the tops of the two first sliding rods are fixedly connected with the same pressing plate, second supporting springs are fixedly connected between the pressing plate and the air collecting box, a driving mechanism is arranged above the multiple pressing plates, and piston plates are fixedly connected to the bottoms of the first sliding rods. The air conveying pipes located at different positions of the surface of the conveying belt can slowly spray cooling air at a constant speed, puffed food on the conveying belt can be fully cooled, and the situation that the cooling effect is poor due to the fact that the puffed food is gathered together through air cooling in the past is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of puffed food processing, and in particular to a puffed food cooling and conveying device. Background Art

[0002] Puffed food is made from grains, potatoes or beans as the main raw materials, and is made by puffing processes such as baking, frying, microwaving or extrusion. It has a significantly increased volume and a certain degree of puffing. It is a snack food with a crispy texture, fragrant aroma and various styles.

[0003] The Chinese patent with the patent publication number CN214568269U discloses a puffed food cooling and conveying device, which includes a cooling bin, a protective frame and a motor. The protective frame is installed on the top of the cooling bin, and the inner wall of the cooling bin is installed with an air cooling device. The top of the cooling bin is provided with a conveying channel, and a group of rotating rollers are arranged inside the cooling bin. Every two adjacent rotating rollers are connected by teeth meshing on their outer surfaces. It is divided into air cooling and water cooling simultaneous cooling modes. When cooling with air, the puffed food will not be blown to the ground, and at the same time The blown-off seasonings or waste residues can be collected to ensure the cleanliness and hygiene of the working surface; the water-cooling pipe can indirectly contact the puffed food on its surface through the transmission roller. Compared with the cooling method of changing the chamber temperature through water cooling, it is more direct, more efficient and more energy-saving. Because the puffed food is lighter, when the above-mentioned device is cooled by air cooling equipment, the wind blown by the air cooling equipment can make the puffed food on the conveyor belt gather together, resulting in poor cooling effect, and the puffed food is easily broken during the blowing process, which greatly affects the product quality.

[0004] In view of this, the present invention proposes a puffed food cooling and conveying device to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a puffed food cooling and conveying device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A puffed food cooling and conveying device comprises a conveyor belt, a cooling bin is fixedly connected to the top outer wall of the conveyor belt, a plurality of air collecting boxes are equidistantly inlaid on the top outer wall of the cooling bin, and each air collecting box is sealed and slidably connected to two sliding rods 1 on the top, a one-way air inlet is provided on the outer wall on one side above the air collecting box, the tops of the two sliding rods 1 are fixedly connected to the same pressing plate, and a supporting spring 2 is fixedly connected between the pressing plate and the air collecting box, a driving mechanism is provided above the plurality of pressing plates, a piston plate is fixedly connected to the bottom of the sliding rod 1, and the piston plate is sealingly and slidably connected to the inside of the air collecting box, a through opening is provided in the middle of the piston plate, and a sealing mechanism is provided at the bottom of the through opening, a plurality of air pipes are fixedly connected to the bottom of the air collecting box at equal distances, and each air pipe is sealed and slidably connected to a hemispherical tube at the bottom, a plurality of one-way jet holes are provided at the bottom of the hemispherical tube, and a telescopic mechanism is provided above the hemispherical tube.

[0007] Furthermore, the driving mechanism includes two mounting plates, the two mounting plates are fixedly connected to the outer wall of the top of the cooling chamber, and a crankshaft is rotatably connected between the two mounting plates, a plurality of protrusions are staggeredly arranged on the outer wall of the crankshaft, and each protrusion is located directly above the corresponding pressing plate, and a rotating motor is arranged at one end of the crankshaft.

[0008] Furthermore, the sealing mechanism includes two sliding rods 2, which are sealingly and slidingly connected to the piston plate, and the bottom ends of the two sliding rods 2 are fixedly connected to the same sealing plate, and the sealing plate seals the through opening. The top ends of the two sliding rods are fixedly connected to a limiting plate, and a support spring 3 is fixedly connected between the limiting plate and the top outer wall of the piston plate.

[0009] Furthermore, the telescopic mechanism includes a lifting plate, which is slidably connected to the inside of the gas collecting box, and a plurality of vertical rods are fixedly connected to the outer wall of the bottom of the lifting plate at equal distances, and the plurality of vertical rods are all inserted into the corresponding gas pipes and fixedly connected to the hemispherical tubes, and a support spring is fixedly connected between the lifting plate and the inner wall of the bottom of the gas collecting box.

[0010] Furthermore, a rotating shaft is provided at the bottom of the conveyor belt, and a rotating motor 2 is provided at one end of the rotating shaft, a plurality of convex plates are fixedly connected to the outer wall of the rotating shaft at equal distances, a accommodating cavity is provided inside the convex plate, and a scraper is slidably connected to the outer wall of the accommodating cavity, and a supporting spring 4 is fixedly connected between the scraper and the inner wall of the accommodating cavity.

[0011] Furthermore, a collection bin is provided directly below the rotating shaft, and a collection drawer is slidably connected to the bottom of the collection bin.

[0012] Furthermore, a threaded rod is provided on the inner wall of one side of the collection bin, and a rotating motor three is provided at one end of the threaded rod. A threaded slider is slidably connected to the outer wall of the threaded rod, and the threaded slider is slidably connected to the inner wall of the collection bin.

[0013] Furthermore, the outer wall of the threaded slider close to the rotating shaft is hinged with two cleaning brushes through a torsion spring, and an electric push rod is provided on one side of the cleaning brush. The electric push rod is embedded in the threaded slider, and the telescopic end of the electric push rod contacts the corresponding outer wall of the cleaning brush.

[0014] The beneficial effects of the present invention are: 1. The air pipes under each air collecting box are located at different positions on the surface of the conveyor belt. Under the action of the driving mechanism, the air collecting box supplies air to the air pipe in sequence, and then the gas is ejected slowly and uniformly through the one-way air jet hole, which can fully cool the puffed food on the conveyor belt and avoid the situation in which the puffed food is gathered together by air cooling, resulting in poor cooling effect.

[0015] 2. Under the elastic force of the supporting spring 4, the scraper can be closely attached to the bottom surface of the conveyor belt, so that the puffed food crumbs remaining on the surface of the conveyor belt can be scraped off without manual cleaning, and the conveyor belt can be automatically kept clean.

[0016] 3. The two cleaning brushes on the surface of the threaded slider can be used to clean the scraper and remove food debris attached to the scraper, greatly improving the cleaning effect of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a puffed food cooling and conveying device proposed in Example 1; Figure 2 This is a schematic cross-sectional structure diagram of an air collecting box of a puffed food cooling and conveying device proposed in Example 1; Figure 3 A puffed food cooling and conveying device proposed in Example 1 Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 4 A puffed food cooling and conveying device proposed in Example 1 Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 5 A schematic diagram of the bottom structure of a conveyor belt of a puffed food cooling and conveying device proposed in Example 2; Figure 6 This is a schematic diagram of the outer wall structure of the rotating shaft of a puffed food cooling and conveying device proposed in Example 2; Figure 7 This is a schematic diagram of the cross-sectional structure of a convex plate of a puffed food cooling and conveying device proposed in Example 2; Figure 8 This is a schematic diagram of the structure of a collection bin of a puffed food cooling and conveying device proposed in Example 3; Fig. 9This is a schematic diagram of the structure of a threaded slider of a puffed food cooling and conveying device proposed in Example 3.

[0018] In the figure: 1. conveyor belt; 2. air collecting box; 3. cooling chamber; 4. mounting plate; 5. rotating motor 1; 6. crankshaft; 7. raised part; 8. air pipe; 9. supporting spring 1; 10. lifting plate; 11. vertical rod; 12. piston plate; 13. sliding rod 1; 14. supporting spring 2; 15. pressing plate; 16. one-way air inlet; 17. through port; 18. sealing plate; 19. one-way air jet hole; 20. supporting spring 3; 21. limit plate; 22. sliding rod 2; 23. rotating motor 2; 24. rotating shaft; 25. collecting chamber; 26. collecting drawer; 27. raised plate; 28. scraper; 29. ​​accommodating chamber; 30. supporting spring 4; 31. rotating motor 3; 32. threaded slider; 33. threaded rod; 34. electric push rod; 35. cleaning brush. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0020] Example 1: Reference Figure 1-Figure 4A puffed food cooling and conveying device comprises a conveyor belt 1, a cooling bin 3 is fixedly connected to the top outer wall of the conveyor belt 1, a plurality of air collecting boxes 2 are inlaid at equal distances on the top outer wall of the cooling bin 3, and two slide bars 13 are sealed and slidably connected to the top of each air collecting box 2, a one-way air inlet 16 is arranged on the outer wall on one side above the air collecting box 2, a same pressing plate 15 is fixedly connected to the top of the two slide bars 13, and a supporting spring 2 14 is fixedly connected between the pressing plate 15 and the air collecting box 2, a driving mechanism is arranged above the plurality of pressing plates 15, a piston plate 12 is fixedly connected to the bottom of the slide bar 13, and the piston plate 12 is sealed and slidably connected to the inside of the air collecting box 2, A through hole 17 is provided in the middle of the piston plate 12, and a sealing mechanism is provided at the bottom of the through hole 17. A plurality of air pipes 8 are fixedly connected to the bottom of the air collecting box 2 at equal distances, and a hemispherical tube is sealed and slidably connected to the bottom end of each air pipe 8. A plurality of one-way air jet holes 19 are provided at the bottom end of the hemispherical tube, and a telescopic mechanism is provided above the hemispherical tube. When the conveyor belt 1 transports the puffed food into the cooling bin 3, the driving mechanism will be started at the same time, and the driving mechanism can press the pressing plate 15 on the cooling bin 3 downward in sequence. When the pressing plate 15 is pressed downward, the supporting spring 2 14 is compressed, so that the piston plate 1 is moved downward under the action of the sliding rod 13. 2 moves downward, at this time, the sealing mechanism seals the through hole 17 to prevent gas from passing through, so that the piston plate 12 can squeeze the gas in the space below it into the gas pipe 8, and at the same time, under the action of the telescopic mechanism, the hemispherical tube at the bottom of the gas pipe 8 can be extended, so that the gas is ejected through the multiple one-way jet holes 19 on the hemispherical tube, and a pressure difference is generated between the space above the piston plate 12 and the outside, so that the external gas enters the space above the piston plate 12 through the one-way air inlet 16. When the driving mechanism does not apply force to the pressing plate 15, the piston plate 12 moves upward under the action of the rebound force of the supporting spring 14. In this process, During the process, the sealing mechanism opens the opening 17, so that the gas in the space above the piston plate 12 can enter the space below the piston plate 12, and the cycle is repeated so that the multiple one-way jet holes 19 can slowly and uniformly eject cooling gas. Because the bottom end of the gas pipe 8 below the gas collecting box 2 is at different positions on the surface of the conveyor belt 1, some of the gas ejected from the one-way jet holes 19 will be sprayed on the surface of the conveyor belt 1, and then the ejected gas will change direction and blow to the gap of the puffed food, so that the puffed food on the conveyor belt 1 can be fully cooled, avoiding the situation in the past where the puffed food is gathered together by air cooling, resulting in poor cooling effect.

[0021] As a further solution in the present invention, the driving mechanism includes two mounting plates 4, the two mounting plates 4 are fixedly connected to the top outer wall of the cooling chamber 3, and a crankshaft 6 is rotatably connected between the two mounting plates 4, a plurality of protrusions 7 are staggeredly arranged on the outer wall of the crankshaft 6, and each protrusion 7 is located directly above the corresponding pressing plate 15, and a rotating motor 5 is arranged at one end of the crankshaft 6, and the crankshaft 6 is driven to rotate by the rotating motor 5, so that the protrusions 7 staggered on the outer wall of the crankshaft 6 can intermittently contact the pressing plate 15 in sequence, so that the pressing plate 15 moves downward.

[0022] As a further solution in the present invention, the sealing mechanism includes two sliding rods 22, which are sealingly and slidingly connected to the piston plate 12, and the bottom ends of the two sliding rods 22 are fixedly connected to the same sealing plate 18, which seals the through-port 17. The top ends of the sliding rods 22 are fixedly connected to the limiting disk 21, and the limiting disk 21 and the top outer wall of the piston plate 12 are fixedly connected with a supporting spring three 20. When the piston plate 12 moves downward, the compressed gas can make the sealing plate 18 close to the bottom of the through-port 17, thereby sealing the through-port 17. When the piston plate 12 moves upward, the compressed gas causes the sealing plate 18 to move downward with the sliding rod 22. At this time, the supporting spring three 20 on the sliding rod 22 is compressed, so that the sealing plate 18 is pushed open by the compressed gas, so that the through-port 17 is opened, allowing the gas to pass through.

[0023] As a further solution in the present invention, the telescopic mechanism includes a lifting plate 10, which is slidably connected to the inside of the gas collecting box 2, and a plurality of vertical rods 11 are fixedly connected to the outer wall of the bottom of the lifting plate 10 at equal distances. The plurality of vertical rods 11 are all inserted into the corresponding gas pipe 8 and fixedly connected to the hemispherical tube. A support spring 9 is fixedly connected between the lifting plate 10 and the inner wall of the bottom of the gas collecting box 2. When the piston plate 12 moves downward, it will contact the lifting plate 10, so that the lifting plate 10 can be pressed to compress the support spring 9 and move downward synchronously. The lifting plate 10 can extend the hemispherical tube from the bottom end of the gas pipe 8 through the vertical rod 11, so that the gas is fully sprayed on the puffed food on the conveyor belt 1. When the piston plate 12 moves upward, the hemispherical tube is retracted into the gas pipe 8 under the action of the rebound force of the support spring 9, so as to avoid obstruction to the movement of the puffed food.

[0024] Working principle: When the conveyor belt 1 transports the puffed food into the cooling bin 3, the driving mechanism will start at the same time. The driving mechanism can press the pressing plate 15 on the cooling bin 3 downward in sequence. When the pressing plate 15 is pressed downward, the support spring 14 is compressed, so that the piston plate 12 moves downward under the action of the slide bar 13. At this time, the sealing mechanism seals the opening 17 to prevent the gas from passing through, so that the piston plate 12 can squeeze the gas in the space below it into the air pipe 8. At the same time, under the action of the telescopic mechanism, the hemispherical tube at the bottom end of the air pipe 8 can be extended, so that the gas is ejected through the multiple one-way jet holes 19 on the hemispherical tube, and a pressure difference will be generated between the space above the piston plate 12 and the outside, so that the external gas enters the piston plate 12 through the one-way air inlet 16. In the space above the piston plate 12, when the driving mechanism does not apply force to the pressing plate 15, the piston plate 12 moves upward under the action of the rebound force of the supporting spring 14. In this process, the sealing mechanism opens the through hole 17, so that the gas in the space above the piston plate 12 can enter the space below the piston plate 12, and the cycle is repeated, so that the multiple one-way jet holes 19 can slowly and uniformly eject cooling gas. Because the bottom end of the air supply pipe 8 below the air collecting box 2 is at different positions on the surface of the conveyor belt 1, some of the gas ejected from the one-way jet holes 19 will be sprayed on the surface of the conveyor belt 1, and then the ejected gas changes direction and blows to the gap of the puffed food, so that the puffed food on the conveyor belt 1 can be fully cooled, avoiding the situation in the past where the puffed food is gathered together by air cooling, resulting in poor cooling effect.

[0025] Example 2: Reference Figure 1-Figure 7 , a puffed food cooling and conveying device, compared with embodiment 1, on the basis of embodiment 1, a rotating shaft 24 is provided at the bottom of the conveyor belt 1, and a rotating motor 23 is provided at one end of the rotating shaft 24, a plurality of convex plates 27 are fixedly connected to the outer wall of the rotating shaft 24 at equal distances, a receiving cavity 29 is provided inside the convex plate 27, and a scraper 28 is slidably connected to the outer wall of the receiving cavity 29, and a support spring 4 30 is fixedly connected between the scraper 28 and the inner wall of the receiving cavity 29, and under the elastic force of the support spring 4 30, the scraper 28 and the conveyor belt 1 are The bottom surface is tightly attached, so that when the conveyor belt 1 transports puffed food, the scraper 28 can scrape off the food crumbs attached to the surface of the conveyor belt 1 to keep the conveyor belt 1 clean. After cleaning for a period of time, the rotating motor 23 rotates the rotating shaft 24 to replace a new scraper 28. The replaced scraper 28 is no longer subjected to the extrusion force, so that under the action of the elastic potential energy of the compressed support spring 4 30, the replaced scraper 28 can continuously reciprocate, so that the food crumbs remaining on the replaced scraper 28 can be shaken off.

[0026] As a further solution of the present invention, a collecting bin 25 is provided directly below the rotating shaft 24, and a collecting drawer 26 is slidably connected to the bottom of the collecting bin 25. The cleaned food waste will fall into the collecting bin 25 and then enter the collecting drawer 26, so that the food waste can be collected and is convenient for subsequent processing by the staff.

[0027] Working principle: Under the elastic force of the supporting spring four 30, the scraper 28 will be in close contact with the bottom surface of the conveyor belt 1, so that when the conveyor belt 1 transports puffed food, the scraper 28 can scrape off the food crumbs attached to the surface of the conveyor belt 1 to keep the conveyor belt 1 clean. After cleaning for a period of time, the rotating motor 23 rotates the rotating shaft 24 to replace a new scraper 28. The replaced scraper 28 is no longer subjected to the extrusion force, so that under the elastic potential energy of the compressed supporting spring four 30, the replaced scraper 28 can continuously reciprocate, so that the food crumbs remaining on the replaced scraper 28 can be shaken off, and the cleaned food waste will fall into the collecting bin 25, and then enter the collecting drawer 26, so that the food waste can be collected, which is convenient for the staff to handle later.

[0028] Example 3: Reference Figure 1-Figure 9 , a puffed food cooling and conveying device, compared with embodiment 2, on the basis of embodiment 2, a threaded rod 33 is provided on the inner wall of one side of the collecting bin 25, and a rotating motor three 31 is provided at one end of the threaded rod 33, a threaded slider 32 is slidably connected to the outer wall of the threaded rod 33, and the threaded slider 32 is slidably connected to the inner wall of the collecting bin 25, when the replaced scraper 28 is in a horizontal state, the rotating motor two 23 stops running, and then the rotating motor three 31 is started, driving the threaded rod 33 connected thereto to rotate, thereby moving the threaded slider 32 on the threaded rod 33.

[0029] As a further solution of the present invention, the outer wall of one side of the threaded slider 32 close to the rotating shaft 24 is hinged to two cleaning brushes 35 through a torsion spring, and an electric push rod 34 is provided on one side of the cleaning brush 35. The electric push rod 34 is embedded in the threaded slider 32, and the telescopic end of the electric push rod 34 contacts the corresponding outer wall of the cleaning brush 35. The threaded slider 32 will move with the two cleaning brushes 35. During this process, the electric push rod 34 is started, and the telescopic end of the electric push rod 34 will apply force to the cleaning brushes 35, so that the two cleaning brushes 35 are close to each other. At this time, the torsion spring on the cleaning brush 35 will be deformed by the force, so that the two cleaning brushes 35 can be replaced. The scraper 28 is tightly attached to the surface, and as the threaded slider 32 moves, the scraper 28 can be cleaned by the cleaning brush 35 to remove the remaining food debris on the replaced scraper 28, thereby improving the cleaning efficiency of the scraper 28, and when the scraper 28 at the bottom of the conveyor belt 1 needs to be replaced, the threaded slider 32 will be in the space between the rotating motor 23 and the convex plate 27, so as not to hinder the movement of the convex plate 27, and when in the space between the rotating motor 23 and the convex plate 27, the telescopic end of the electric push rod 34 is continuously extended and retracted, so that the cleaning brush 35 can be continuously shaken, and the cleaning brush 35 can be cleaned.

[0030] Working principle: When the replaced scraper 28 is in a horizontal state, the rotating motor 23 stops running, and then the rotating motor 31 starts, driving the threaded rod 33 connected thereto to rotate, thereby moving the threaded slider 32 on the threaded rod 33, and the threaded slider 32 will move with the two cleaning brushes 35. In this process, the electric push rod 34 is started, and the telescopic end of the electric push rod 34 will apply force to the cleaning brush 35, so that the two cleaning brushes 35 are close to each other. At this time, the torsion spring on the cleaning brush 35 will be deformed by the force, so that the two cleaning brushes 35 can be in close contact with the surface of the replaced scraper 28. The movement of the slider 32 allows the scraper 28 to be cleaned through the cleaning brush 35, and the remaining food debris on the replaced scraper 28 can be removed, thereby improving the cleaning efficiency of the scraper 28. When the scraper 28 at the bottom of the conveyor belt 1 needs to be replaced, the threaded slider 32 will be in the space between the rotating motor 23 and the convex plate 27, so as not to hinder the movement of the convex plate 27. When in the space between the rotating motor 23 and the convex plate 27, the telescopic end of the electric push rod 34 is continuously extended and retracted, so that the cleaning brush 35 can be continuously shaken, and the cleaning brush 35 can be cleaned.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A puffed food cooling and conveying device, comprising a conveyor belt (1), wherein a cooling bin (3) is fixedly connected to the top outer wall of the conveyor belt (1), It is characterized in that The top outer wall of the cooling chamber (3) is inlaid with a plurality of air collecting boxes (2) at equal distances, and the top of each air collecting box (2) is sealed and slidably connected to two slide bars (13), a one-way air inlet (16) is provided on the outer wall on one side above the air collecting box (2), the tops of the two slide bars (13) are fixedly connected to the same pressing plate (15), and a supporting spring (14) is fixedly connected between the pressing plate (15) and the air collecting box (2), a driving mechanism is provided above the plurality of pressing plates (15), and the slide bars are A piston plate (12) is fixedly connected to the bottom (13), and the piston plate (12) is sealingly slidably connected to the inside of the gas collecting box (2), a through hole (17) is provided in the middle of the piston plate (12), and a sealing mechanism is provided at the bottom of the through hole (17), a plurality of gas pipes (8) are fixedly connected to the bottom of the gas collecting box (2) at equal distances, and each gas pipe (8) is sealingly slidably connected to a hemispherical tube at the bottom end, a plurality of one-way jet holes (19) are provided at the bottom end of the hemispherical tube, and a telescopic mechanism is provided above the hemispherical tube.

2. A puffed food cooling and conveying device according to claim 1, It is characterized in that The driving mechanism comprises two mounting plates (4), the two mounting plates (4) being fixedly connected to the top outer wall of the cooling chamber (3), and a crankshaft (6) being rotatably connected between the two mounting plates (4), a plurality of protrusions (7) being staggeredly arranged on the outer wall of the crankshaft (6), and each protrusion (7) being located directly above the corresponding pressing plate (15), and a rotating motor (5) being arranged at one end of the crankshaft (6).

3. A puffed food cooling and conveying device according to claim 2, It is characterized in that The sealing mechanism comprises two sliding rods (22), the sliding rods (22) are sealingly slidably connected to the piston plate (12), and the bottom ends of the two sliding rods (22) are fixedly connected to the same sealing plate (18), and the sealing plate (18) seals the through opening (17), and the top ends of the two sliding rods (22) are fixedly connected to a limit plate (21), and a support spring (20) is fixedly connected between the limit plate (21) and the top outer wall of the piston plate (12).

4. A puffed food cooling and conveying device according to claim 3, It is characterized in that The telescopic mechanism comprises a lifting plate (10), the lifting plate (10) being slidably connected to the inside of the gas collecting box (2), and a plurality of vertical rods (11) being fixedly connected at equal distances to the bottom outer wall of the lifting plate (10), the plurality of vertical rods (11) being inserted into corresponding gas transmission pipes (8) and fixedly connected to the hemispherical tubes, and a support spring (9) being fixedly connected between the lifting plate (10) and the bottom inner wall of the gas collecting box (2).

5. The puffed food cooling and conveying device according to claim 1, It is characterized in that A rotating shaft (24) is provided at the bottom of the conveyor belt (1), and a rotating motor (23) is provided at one end of the rotating shaft (24). A plurality of convex plates (27) are fixedly connected at equal distances to the outer wall of the rotating shaft (24). A receiving cavity (29) is provided inside the convex plate (27), and a scraper (28) is slidably connected to the outer wall of the receiving cavity (29). A supporting spring (30) is fixedly connected between the scraper (28) and the inner wall of the receiving cavity (29).

6. A puffed food cooling and conveying device according to claim 5, It is characterized in that A collection bin (25) is provided directly below the rotating shaft (24), and a collection drawer (26) is slidably connected to the bottom of the collection bin (25).

7. A puffed food cooling and conveying device according to claim 6, It is characterized in that A threaded rod (33) is provided on the inner wall of one side of the collection bin (25), and a rotating motor (31) is provided at one end of the threaded rod (33). A threaded slider (32) is slidably connected to the outer wall of the threaded rod (33), and the threaded slider (32) is slidably connected to the inner wall of the collection bin (25).

8. The puffed food cooling and conveying device according to claim 7, It is characterized in that The outer wall of one side of the threaded slider (32) close to the rotating shaft (24) is hinged with two cleaning brushes (35) via a torsion spring, and an electric push rod (34) is provided on one side of the cleaning brush (35). The electric push rod (34) is embedded in the threaded slider (32), and the telescopic end of the electric push rod (34) contacts the outer wall of the corresponding cleaning brush (35).

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