A spiral cooling tower for refrigerating articles

Abstract

The present invention discloses a spiral cooling tower for refrigerating articles, and the present invention relates to the technical field of article cooling. The spiral cooling tower for refrigerating articles includes a cooling chamber forming a sealed cooling space, a cooling unit located at the top of the cooling chamber for refrigeration, a feeding unit, a discharging unit and a spiral conveyor located in the cooling chamber for conveying products to be cooled. A flow guiding assembly for guiding the flow of cold air, a strengthening assembly for changing the air volume of the flow guiding assembly and a reflux assembly for changing the cold receiving area of the products are arranged in the cooling chamber. The flow guiding assembly includes: a flow guiding cover located at the central position of the spiral conveyor to guide the flow of cold air to cool the products; and a flow guiding plate installed on the flow guiding cover to convey cold air towards the products. By precisely controlling the flow direction of the cold air, it is ensured that the cold air evenly covers the surfaces of all baked products, thereby accelerating the speed of heat transfer from the products to the surrounding environment, which not only improves the cooling efficiency but also shortens the cooling time.

Description

Technical Field

[0001] The present invention relates to the technical field of article cooling, and particularly to a spiral cooling tower for article refrigeration. Background Art

[0002] Currently, after bakery products are taken out of the oven, since the evaporation process in the bakery products has not ended, depending on the type, size, and shape of the bakery products, this process will still continue for several hours. Therefore, it is necessary to cool the bakery products, and this process is usually carried out using a spiral cooling tower, which can effectively reduce the cooling time of the products and improve production efficiency. However, during the use of the current spiral cooling tower, after the cold air contacts the bakery products, heat exchange occurs and the temperature rises. As a result, when the cold air flowing over the products on the left side of the spiral cooling tower reaches the right side of the spiral cooling tower, the temperature has already changed and is mixed with moisture, resulting in the problem that some products are either over-cooled or over-heated, leading to product deformation, skin wrinkling, or other quality problems.

[0003] For example, a spiral cooling tower disclosed in the patent publication number CN214620275U can drive the transmission chain to drive the inner rotating frame to rotate stably through a rotation driving device, reduce the friction during rotation, simplify the transmission structure of the inner rotating frame, and improve the overall transmission efficiency of the inner rotating frame. However, when the cold air blows onto the bakery products placed on it, the cold air directly passes through the spiral cooling tower frame and blows onto the products on both sides, and the temperatures of the cold air blown onto the products on both sides are different, resulting in deformation, skin wrinkling, or other quality problems for some products. A spiral pasta cooling tower disclosed in the patent publication number CN217686042U can generate a reverse impact airflow between the first rotating plate and the second rotating plate, so that the mutually impacting airflow flows in the horizontal 360° direction after impact to achieve 360° horizontal stable blowing and heat dissipation of the pasta on the spiral rack. However, after the airflow contacts the bakery products, the moisture mixed in still remains in the cold air, and it can only cool the products on the inner ring side of the spiral rack and cannot cool the outer ring side, resulting in uneven cooling of some products, leading to deformation, skin wrinkling, or other quality problems.

[0004] Therefore, a spiral cooling tower for article refrigeration is proposed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a spiral cooling tower for article refrigeration, which solves the problems raised in the background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A spiral cooling tower for refrigerating articles, including a cooling chamber forming a sealed cooling space, a cooling unit located at the top of the cooling chamber for refrigeration, a feeding unit, a discharging unit, and a spiral conveyor located in the cooling chamber for conveying the products to be cooled. A flow guiding assembly for guiding the flow of cold air, a strengthening assembly for changing the air volume of the flow guiding assembly, and a reflux assembly for changing the cold receiving area of the products are arranged in the cooling chamber. The flow guiding assembly includes: a flow guiding cover, a flow guiding plate, a support rod, a guiding rod, a rotating shaft, a power motor, an output shaft, a driving gear, and a driven gear;

[0007] The flow guiding cover is located at the central position of the spiral conveyor to guide the flow of cold air to cool the products. The flow guiding plate is installed on the flow guiding cover to convey cold air towards the products. One end of the support rod is fixed on the flow guiding plate to provide support for the flow guiding plate. One end of the guiding rod is fixed at the bottom of the flow guiding plate, and the other end slides through the flow guiding cover to limit the moving direction of the flow guiding plate;

[0008] One end of the rotating shaft is movably installed in the cooling chamber, and the side wall is fixed to the other end of the support rod to provide support for the support rod. The power motor is installed in the cooling chamber to drive the flow guiding plate to change its position. One end of the output shaft is fixed to the output end of the power motor to conduct power, and the driving gear is fixed to one end of the output shaft;

[0009] The driven gear meshes with the driving gear to change the speed and conduct the power required for the operation of the flow guiding assembly at the same time. The contact plate is fixed inside the air guiding plate, and protrusions are arranged on the surface to increase the contact area with the air flow. The scraping plate is installed on the support plate to collect the water vapor in the air guiding plate, and the air collecting plate is fixed at the other opening of the air guiding plate to change the flow direction of the air flow.

[0010] Preferably, the strengthening assembly includes: an extension plate, a sliding column, an electromagnet I, a magnet, a spring, and a compensation plate. The extension plate is slidably installed in the flow guiding plate to change the flow rate of the cold air received by the products. One end of the sliding column is fixed in the flow guiding plate, the electromagnet I is fixedly penetrated through the sliding column, and the magnet slides through the sliding column and is magnetically matched with the electromagnet I to change the position of the extension plate.

[0011] One end of the spring is fixed on the extension plate to apply a restoring elastic force to the extension plate, and the compensation plate slides against the extension plate to reduce the air volume loss.

[0012] Preferably, the reflux assembly includes: a driving gear, a transmission shaft I, a driven gear, a transmission shaft II, a support plate, an air guiding plate, a wind breaking plate, and an auxiliary mechanism. The driving gear is meshed with a transmission gear, and one end of the transmission shaft I is movably installed in the cooling chamber, and the other end is fixed at the bottom of the transmission gear;

[0013] The driven gear meshes with the transmission gear. The bottom of the second transmission shaft is movably installed in the cooling chamber, and the other end is fixed to the bottom of the driven gear. One end of the support plate is fixed to the second transmission shaft. The air guiding plate is located outside the screw conveyor and is provided with openings on both sides to process and guide the air blown out by the deflector plate. The air breaking plate is fixed at one of the openings of the air guiding plate to change the flow direction of the gas entering the air guiding plate. The auxiliary mechanism is located in the reflux assembly to change the flow direction of the air flow.

[0014] Preferably, the auxiliary mechanism includes: an electromagnet II, a magnetic ring, an adjusting plate, a mounting shaft, a mounting plate, a fixing rod, a first telescopic rod, and a second telescopic rod. The electromagnet II is fixed to the support plate. The magnetic ring is magnetically coupled with the electromagnet II. The adjusting plate is fixed to the magnetic ring to provide support for the magnetic ring and changes the angle under the drive of the magnetic ring.

[0015] Preferably, the mounting shaft is movably installed in the support plate. The mounting plate is fixed to the mounting shaft. One end of the fixing rod is fixed to the end of the mounting plate away from the mounting shaft. One end of the first telescopic rod is fixed to the end of the fixing rod away from the mounting plate. One end of the second telescopic rod slidably passes through the first telescopic rod, and the other end is equipped with a scraper.

[0016] The present invention provides a screw cooling tower for refrigerating items. Compared with the prior art, it has the following beneficial effects:

[0017] (1) For the screw cooling tower for refrigerating items, by precisely controlling the flow direction of the cold air, it ensures that the cold air evenly covers the surfaces of all baked products, thereby accelerating the speed of heat transfer from the products to the surrounding environment. This not only improves the cooling efficiency but also shortens the cooling time, thus improving the cooling efficiency. The reasonable deflector design helps to avoid the problems of overcooling or overheating in certain areas, ensuring that every part of the product can obtain a consistent cooling effect, maintaining the product quality, contributing to maintaining the best texture, color, and taste of the baked food, and preventing product deformation, skin wrinkling, or other quality problems caused by improper cooling. It can adjust the cold air deflector direction according to different types of baked products, enabling the same set of equipment to flexibly meet the cooling requirements of multiple products and increasing the flexibility of production.

[0018] (2) For the screw cooling tower for refrigerating items, by dynamically adjusting the cold air supply in each zone, it ensures that the products in each area can obtain an appropriate cooling speed and effect, thereby further reducing product quality problems caused by uneven cooling, such as texture changes and deformation caused by local overheating or overcooling. At the same time, it can better adapt to the needs of different types or sizes of products, achieving an ideal cooling effect without frequently adjusting the equipment settings, improving the flexibility and adaptability of the production line. It only provides an appropriate amount of cooling capacity where needed, avoiding energy waste caused by overcooling, and helping to reduce the overall energy consumption and operating costs.

[0019] (3) The spiral cooling tower for item refrigeration can maximize the utilization of cooling resources by recycling cold airflows. The cold airflows first cool one side and then, after being processed, cool the other side, ensuring that the surface of each product is fully cooled, improving the overall cooling efficiency, and contributing to further achieving a more uniform cooling effect. Since both sides of each product can be cooled under the same conditions, the temperature difference caused by unilateral cooling is reduced, ensuring the consistency of product quality.

[0020] (4) The spiral cooling tower for item refrigeration can flexibly adjust the cooling parameters according to the characteristics and cooling requirements of different baking products by adjusting the air volume and direction. Precise control of the direction and intensity of the cold airflows can help overcome the problem of cooling dead zones caused by irregular product shapes or placement positions, enabling each product to be evenly and effectively cooled, avoiding local overheating or overcooling. Different baking products have different optimal cooling conditions. By setting an auxiliary mechanism with an adjustable function, the production line is allowed to quickly switch to the cooling mode suitable for different types of products, improving the versatility and adaptability of the production line.

[0021] Other features and advantages of the present invention will be described in the subsequent specification, and some will be obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic side sectional view of the cooling chamber of the present invention;

[0024] Figure 3 is a schematic diagram of the position of the flow guiding component of the present invention;

[0025] Figure 4 is a schematic diagram of the position of the air collecting plate of the present invention;

[0026] Figure 5 is a schematic diagram of the combined state of the flow guiding plates of the present invention;

[0027] Figure 6 is a schematic diagram of the disassembled state of the flow guiding plates of the present invention;

[0028] Figure 7 is a schematic diagram of the position of the power motor of the present invention;

[0029] Figure 8 is a schematic diagram of the combined state of the extension plates of the present invention;

[0030] Figure 9 Schematic diagram of the exploded state of the expansion board of the present invention;

[0031] Figure 10 Schematic diagram of the exploded state of the sliding column of the present invention;

[0032] Figure 11 Cross-sectional structure diagram of the air guiding plate of the present invention;

[0033] Figure 12 Schematic diagram of the exploded state of the fixing rod of the present invention;

[0034] Figure 13 Schematic diagram of the exploded state of the first telescopic rod of the present invention.

[0035] In the figure: 1. Cooling room; 11. Cooling unit; 12. Feeding unit; 13. Discharging unit; 14. Screw conveyor; 2. Power motor; 21. Output shaft; 22. Driving gear; 23. Driven gear; 24. Rotating shaft; 25. Support rod; 26. Deflector; 27. Guide rod; 28. Drainage cover; 3. Sliding column; 31. Electromagnet 1; 32. Magnet; 33. Expansion board; 34. Spring; 35. Compensation board; 4. Driving gear; 41. Transmission gear; 42. First transmission shaft; 43. Driven gear; 44. Second transmission shaft; 45. Support plate; 46. Air guiding plate; 47. Wind breaking plate; 48. Contact plate; 49. Scraper; 410. Air collecting plate; 5. Electromagnet 2; 51. Magnetic ring; 52. Adjusting plate; 53. Fixing rod; 54. Mounting plate; 55. Mounting shaft; 56. First telescopic rod; 57. Second telescopic rod; 58. Connecting ring. Detailed implementation manners

[0036] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] In the embodiments of the present application, it is implied that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0038] Please refer to Figures 1 to 3 、 Figures 5 to 8 , Embodiment 1:

[0039] A spiral cooling tower for refrigerating articles, comprising a cooling chamber 1 forming a sealed cooling space, a cooling unit 11 located at the top of the cooling chamber 1 for refrigeration, a feeding unit 12, a discharging unit 13 and a spiral conveyor 14 located in the cooling chamber 1 for conveying products to be cooled. A flow guiding assembly for guiding the flow of cold air is arranged in the cooling chamber 1. The flow guiding assembly includes: a power motor 2, an output shaft 21, a driving gear 22, a driven gear 23, a rotating shaft 24, a support rod 25, a flow guiding plate 26, a guiding rod 27, and a flow guiding cover 28;

[0040] The bottom of the power motor 2 is fixedly installed on the bottom inner wall of the cooling chamber 1 through a motor box. The power motor 2 is used to drive the flow guiding plate 26 to change its position;

[0041] One end of the output shaft 21 is fixedly installed on the output end of the power motor 2 through a coupling. The output shaft 21 is used to conduct the power output by the power motor 2;

[0042] The bottom of the driving gear 22 is fixedly installed on the end of the output shaft 21 away from the power motor 2;

[0043] The driven gear 23 is meshed with the driving gear 22. The driven gear 23 is used to change the rotation speed and conduct the power required for the operation of the flow guiding assembly;

[0044] One end of the rotating shaft 24 is movably installed on the bottom inner wall of the cooling chamber 1 through a shaft gear. The side wall of the rotating shaft 24 is fixedly connected to the other end of the support rod 25. The rotating shaft 24 is used to provide support for the support rod 25. One end of the rotating shaft 24 is fixedly inserted into the driven gear 23 to provide support for the driven gear 23;

[0045] One end of the support rod 25 is fixedly installed on the flow guiding plate 26. The support rod 25 provides support for the flow guiding plate 26 and drives the flow guiding plate 26 to rotate under the drive of the power motor 2;

[0046] The flow guiding plate 26 is slidably installed on the flow guiding cover 28 to convey cold air towards the product;

[0047] One end of the guiding rod 27 is fixedly installed at the bottom of the flow guiding plate 26. The other end of the guiding rod 27 is slidably inserted into the flow guiding cover 28. The guiding rod 27 is used to limit the moving direction of the flow guiding plate 26;

[0048] The flow guiding cover 28 is located directly below the cooling unit 11 and at the central position of the spiral conveyor 14 to guide the flow of cold air to cool the product.

[0049] During use, the cooling unit 11 is controlled by the control center to operate, so that the cooling unit 11 conveys cold air to the screw conveyor 14 in the cooling chamber 1. Subsequently, the feeding unit 12 is controlled by the control center to convey bakery products to be cooled, such as bread, hamburgers, toast, cakes, mooncakes, etc., onto the screw conveyor 14 in the cooling chamber 1, so that the screw conveyor 14 drives these bakery products to move spirally and cool in the cooling chamber 1 until they are conveyed to the discharging unit 13 and then conveyed to the outside of the cooling chamber 1 through the discharging unit 13;

[0050] During the process of cooling these bakery products to facilitate refrigeration, the cold air blown out by the cooling unit 11 is diverted through the diversion cover 28. The power motor 2 is controlled to start by the control center. The output shaft 21 is driven to rotate by the power motor 2, the power gear 22 is driven to rotate by the output shaft 21, the driven gear 23 is driven to rotate by the power gear 22, the rotating shaft 24 is driven to rotate by the driven gear 23, the support rod 25 is driven to rotate by the rotating shaft 24, and the guide plate 26 is driven to rotate by the support rod 25;

[0051] Eighty percent of the cold air conveyed by the cooling unit 11 is diverted downward through the diversion cover 28. During this process, the rotating guide plate 26 conveys this cold air from the diversion cover 28 to the screw conveyor 14, so that this cold air can fully cool one half of the bakery products on the screw conveyor 14. Subsequently, the remaining cold air fully cools the other half of the bakery products on the screw conveyor 14 from the outside of the diversion cover 28, so that the bakery products can be quickly and fully cooled and then conveyed to the outside of the cooling chamber 1 by the discharging unit 13;

[0052] During the rotation of the guide plate 26, the guide plate 26 drives the guide rod 27 to rotate synchronously. The guide rod 27 is slidably adapted to the diversion cover 28, so that the guide rod 27 can move in a circular motion along the diversion cover 28, thereby supporting and limiting the guide plate 26, so that the guide plate 26 can also move in a circular motion along the diversion cover 28, and the rotation direction is opposite to the feeding direction of the screw conveyor 14, so that the cold air flow can quickly flow away from the bakery products for heat exchange, thereby taking away the heat on the bakery products.

[0053] Please refer to Figure 9 、 Figure 10 The present invention provides Embodiment 2. The technical solutions of this embodiment different from those of Embodiment 1 include:

[0054] An enhancement component for changing the air volume of the diversion component is provided in the cooling chamber 1. The enhancement component includes: a sliding column 3, an electromagnet 31, a magnet 32, an extension plate 33, a spring 34, and a compensation plate 35;

[0055] One end of the sliding column 3 is fixedly installed on the inner wall of the guide plate 26;

[0056] The electromagnet 31 is fixedly penetrated through the sliding column 3;

[0057] The magnet 32 is slidably penetrated through the sliding column 3. There is a magnetic cooperation between the magnet 32 and the electromagnet 31, and the cooperation between the magnet 32 and the electromagnet 31 is used to change the position of the expansion plate 33;

[0058] One end of the spring 34 is fixedly installed on the expansion plate 33, and the other end of the spring 34 is fixedly installed on the inner wall of the diversion plate 26. The spring 34 is used to apply a restoring elastic force to the expansion plate 33;

[0059] One end of the compensation plate 35 is slidably abutted against the expansion plate 33, and the outer wall on the other side of the compensation plate 35 is hinged to the outer wall of the diversion plate 26 through a torsion spring. The compensation plate 35 is used to reduce the air volume loss;

[0060] The expansion plate 33 is slidably installed in the diversion plate 26 to change the flow rate of the cold air received by the product.

[0061] During use, the internal space of the cooling chamber 1 is partitioned, and temperature monitoring is carried out in each partition occupied by the screw conveyor 14;

[0062] When switching different baking products or when the cooling of the current product is unevenly cooled, the enhancement component is started through the control center. By energizing the electromagnet 31, the magnetic repulsion between the electromagnet 31 and the magnet 32 is made. Through the repulsive force, the magnet 32 can move to the side away from the electromagnet 31. At the same time, the magnet 32 is slidably adapted to the sliding column 3, so that the magnet 32 can only move linearly along the sliding column 3 during movement. By changing the magnitude of the repulsive force between the electromagnet 31 and the magnet 32, the distance that the magnet 32 moves along the sliding column 3 is controlled;

[0063] The expansion plate 33 is driven by the magnet 32 to move synchronously. The expansion plate 33 moves out of the diversion plate 26, so that a larger part of the cold air that can be led out from the diversion cover 28 can be led out at the position of the layer of the diversion plate 26. At the same time, when the expansion plate 33 moves out, it will squeeze the compensation plate 35, causing the compensation plate 35 to turn outwards with the torsion spring as the axis, avoiding the airflow from flowing from between the expansion plate 33 and the diversion plate 26 to other places and reducing the airflow loss;

[0064] At the same time, the spring 34 applies a pulling force to the expansion plate 33 towards the side where the diversion plate 26 is located, so that when the magnetism between the electromagnet 31 and the magnet 32 disappears or weakens, the expansion plate 33 can retract into the diversion plate 26 under the action of the spring 34.

[0065] Please refer to Figure 4 、 Figure 11 This invention provides Embodiment 3. The technical solutions of this embodiment different from Embodiment 2 include:

[0066] Inside the cooling chamber 1, there is a reflux component for changing the cold-receiving area of the product. The reflux component includes: a driving gear 4, a transmission gear 41, a first transmission shaft 42, a driven gear 43, a second transmission shaft 44, a support plate 45, a wind guiding plate 46, a wind breaking plate 47, a contact plate 48, a scraper 49, and a wind collecting plate 410;

[0067] The driving gear 4 is meshed and connected with the transmission gear 41, and the driving gear 4 is fixedly sleeved on the rotating shaft 24;

[0068] One end of the first transmission shaft 42 is movably installed at the bottom of the inner wall of the cooling chamber 1 through a bearing, and the other end of the first transmission shaft 42 is fixedly installed at the bottom of the transmission gear 41;

[0069] The driven gear 43 is meshed and connected with the transmission gear 41;

[0070] The bottom of the second transmission shaft 44 is movably installed at the bottom of the inner wall of the cooling chamber 1 through a bearing, and the other end of the second transmission shaft 44 is fixedly installed at the bottom of the driven gear 43;

[0071] One end of the support plate 45 is fixedly installed on the side wall of the second transmission shaft 44;

[0072] The wind guiding plate 46 is located outside the screw conveyor 14 and is provided with openings on both sides, for processing and guiding the air blown out by the deflector 26;

[0073] Both ends of the wind breaking plate 47 are fixedly installed at one of the openings on the side of the wind guiding plate 46, and the wind breaking plate 47 changes the flow direction of the gas entering the wind guiding plate 46;

[0074] One end of the contact plate 48 is fixedly installed inside the wind guiding plate 46, and the surface of the contact plate 48 is provided with protrusions. The contact plate 48 is used to increase the contact area with the air flow;

[0075] The side wall of the scraper 49 is slidably installed on the support plate 45, and the scraper 49 is used to collect the water vapor in the wind guiding plate 46;

[0076] The outer wall of the wind collecting plate 410 is fixedly installed at the other opening on the side of the wind guiding plate 46, and the wind collecting plate 410 is used to change the flow direction of the air flow.

[0077] During use, while the power motor 2 drives the rotating shaft 24 to rotate through the output shaft 21, the driving gear 22, and the driven gear 23, the rotating shaft 24 synchronously drives the driving gear 4 to rotate. The driving gear 4 drives the transmission gear 41 to rotate, and the first transmission shaft 42 provides a supporting force for the transmission gear 41. The transmission gear 41 drives the driven gear 43 to rotate. While the second transmission shaft 44 provides a supporting force for the driven gear 43, the driven gear 43 drives the second transmission shaft 44 to rotate synchronously. The second transmission shaft 44 drives the support plate 45 to rotate, and the support plate 45 drives the scraper 49 to rotate synchronously;

[0078] The fixing plate of the screw conveyor 14 provides a supporting force for the air guiding plate 46, and the air guiding plate 46 provides a supporting force for the air breaking plate 47. At the same time, the air breaking plate 47 guides the cold and warm air mixed with the heat on the baked product to flow downward to the middle and lower part inside the air guiding plate 46. This part of the air flow blows on the contact plate 48, and the contact area with the cold and warm air flow is increased through the contact plate 48, so that the warm air flow in it contacts the relatively low-temperature contact plate 48, thereby causing the water vapor in the cold and warm air flow to condense on the surface of the contact plate 48 and finally drip to the bottom of the inner wall of the air guiding plate 46;

[0079] After the support plate 45 drives the scraper 49 to rotate, the scraper 49 can gather the water vapor at the bottom of the inner wall of the air guiding plate 46 into water droplets and scrape them to one place. A water flow hole can be opened at the bottom of the inner wall of the air guiding plate 46, so that the water droplets flow to the outside of the cooling room 1 through the water flow hole and the water pipe;

[0080] The passive gear 43 is a half gear. When the passive gear 43 is in a non-engaged state with the driving gear 41, the second transmission shaft 44 is reset around its own axis under the action of the spiral spring, so that the scraper 49 is reset from one end of the air guiding plate 46 to the other end. In this way, through the reciprocating scraping of the scraper 49, the water droplets gathered in the air guiding plate 46 are fully discharged;

[0081] At the same time, the cold air flow that has lost water vapor and cooled after condensation returns to the baked product on the screw conveyor 14 again through the air collecting plate 410, so as to cool and lower the temperature of the other side of the baked product.

[0082] Please refer to Figure 12 、 Figure 13 , the embodiment of the present invention also provides another embodiment different from the foregoing embodiment, and the scraper 49 is no longer directly fixedly installed on the support plate 45;

[0083] The reflux assembly further includes an auxiliary mechanism for changing the air flow direction. The auxiliary mechanism includes: an electromagnet two 5, a magnetic ring 51, an adjusting plate 52, a fixing rod 53, a mounting plate 54, a mounting shaft 55, a first telescopic rod 56, a second telescopic rod 57, and a connecting ring 58,

[0084] One end of the electromagnet two 5 is fixedly installed on the support plate 45;

[0085] The magnetic ring 51 is magnetically matched with the electromagnet two 5;

[0086] The side wall of the adjusting plate 52 is fixedly connected to the side wall of the magnetic ring 51, and the side wall is hinged to one end of the air collecting plate 410 through a hinge. The adjusting plate 52 provides support for the magnetic ring 51, and the adjusting plate 52 can change the angle under the drive of the magnetic ring 51;

[0087] The auxiliary mechanism further includes: a fixed rod 53, a mounting plate 54, a mounting shaft 55, a first telescopic rod 56, and a second telescopic rod 57;

[0088] One end of the fixed rod 53 is fixedly installed at one end of the mounting plate 54 away from the mounting shaft 55;

[0089] The mounting plate 54 is fixed on the mounting shaft 55;

[0090] Both ends of the mounting shaft 55 are movably installed in the support plate 45 through bearings, and mounting holes adapted to the moving path of the mounting plate 54 are provided on the support plate 45;

[0091] One end of the first telescopic rod 56 is fixedly installed on the end of the fixed rod 53 away from the mounting plate 54;

[0092] One end of the second telescopic rod 57 is slidably inserted into the first telescopic rod 56, and the other end of the second telescopic rod 57 is fixedly installed on the scraping plate 49.

[0093] During use, when switching different baking products or when the cooling of the current product is uneven, the auxiliary mechanism is controlled to start by the control center, so as to energize the electromagnet two 5, change the magnetic relationship between the electromagnet two 5 and the magnetic ring 51, and magnetically attract or repel the magnetic ring 51 through the electromagnet two 5, so that the magnetic ring 51 can drive the adjusting plate 52 to flip with the hinge as the axis. At the same time, one end of the adjusting plate 52 will slide and abut against the fixed rod 53 or one end of the scraping plate 49 close to the fixed rod 53;

[0094] When the adjusting plate 52 flips towards the side where the scraping plate 49 is located under the action of magnetic force, the fixed rod 53 is provided with a supporting force through the mounting plate 54, the fixed rod 53 provides a supporting force for the mounting shaft 55, and the support plate 45 provides a supporting force for the mounting shaft 55, so that the fixed rod 53 and the mounting plate 54 flip with the mounting shaft 55 as the axis. At the same time, the first telescopic rod 56 and the second telescopic rod 57 move away from each other, so that the flow direction of the cold air flowing out through the air collecting plate 410 can be changed. At the same time, since the distance between the air collecting plate 410 and the adjusting plate 52 decreases, the air output is reduced to a certain extent, so that the wind direction and flow rate can be changed according to the cooling conditions of different products;

[0095] When the adjusting plate 52 flips away from the side where the scraping plate 49 is located under the action of magnetic force, the mounting plate 54 and the fixed rod 53 can also flip with the mounting shaft 55 as the axis. At the same time, the first telescopic rod 56 and the second telescopic rod 57 approach each other, so that the flow direction of the cold air flowing out through the air collecting plate 410 can be changed. At the same time, since the distance between the air collecting plate 410 and the adjusting plate 52 increases, the air output and flow rate are increased to a certain extent.

[0096] In another embodiment different from the foregoing embodiments, the contact plate 48 is changed to a porous material plate, and the temperature of the porous material plate is maintained at a low temperature state. At the same time, a knocking component is arranged on the surface of the porous material plate, so that the knocking component can shake off the condensed water vapor in the porous material plate, and the water vapor is collected in the air guiding plate 46.

[0097] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages: By precisely controlling the flow direction of the cold air, it is ensured that the cold air evenly covers the surfaces of all baked products, thereby accelerating the heat transfer speed from the products to the surrounding environment. This not only improves the cooling efficiency but also shortens the cooling time, thus improving the cooling efficiency. A reasonable diversion design helps to avoid the problems of overcooling or overheating in certain areas, ensuring that every part of the product can obtain a consistent cooling effect and maintaining the product quality, which helps to maintain the best texture, color and taste of the baked food, and prevent product deformation, skin wrinkling or other quality problems caused by improper cooling. It can adjust the cold air diversion direction according to different types of baked products, enabling the same set of equipment to flexibly meet the cooling requirements of multiple products, increasing the flexibility of production;

[0098] By dynamically adjusting the cold air supply in each zone, it is ensured that the products in each zone can obtain an appropriate cooling speed and effect, thereby further reducing the product quality problems caused by uneven cooling.

[0099] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0100] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0101] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral cooling tower for refrigerating goods, comprising a cooling room (1) forming a closed cooling space, a cooling unit (11) located at the top of the cooling room (1) for refrigeration, a feeding unit (12) located in the cooling room (1) for conveying products to be cooled, a discharging unit (13) and a screw conveyor (14), characterized in that: The cooling room (1) is provided with a flow guide component for guiding the flow of cold air, a reinforcement component for changing the air volume of the flow guide component, and a return flow component for changing the cooling area of ​​the product, wherein the flow guide component comprises: A guide hood (28) is located at the center of the screw conveyor (14) and guides the flow of cold air to cool the product; The guide plate (26) is installed on the guide cover (28) to convey cold air to the product; the enhancement component comprises: An expansion plate (33) is slidably mounted inside the guide plate (26) to change the flow rate of cold air received by the product; The reflux assembly comprises: A driving gear (4) meshingly connected with a transmission gear (41); A transmission shaft (42) having one end fixed to the bottom of the transmission gear (41) and the other end movably mounted in the cooling room (1); A driven gear (43) meshed with the transmission gear (41); A second transmission shaft (44), the bottom of which is movably mounted in the cooling room (1), and the other end of which is fixed to the bottom of the passive gear (43); A support plate (45), one end of which is fixed on the second transmission shaft (44); An air guide plate (46) is located outside the screw conveyor (14) and has openings on both sides for processing and guiding the air blown out by the guide plate (26); An air-breaking plate (47) is fixed at an opening on one side of the air-inducing plate (46) to change the flow direction of the gas entering the air-inducing plate (46); The auxiliary mechanism, located in the return assembly, changes the direction of the air flow.

2. A spiral cooling tower for refrigerating goods according to claim 1, characterized in that: The flow guide assembly also includes: A support rod (25) having one end fixed to the guide plate (26) to provide support for the guide plate (26); A guide rod (27), one end of which is fixed to the bottom of the guide plate (26), and the other end of which is slidably inserted into the guide cover (28) to limit the moving direction of the guide plate (26); One end of the rotating shaft (24) is movably mounted in the cooling room (1), and the other end of the side wall is fixed to the support rod (25) to provide support for the support rod (25).

3. A spiral cooling tower for refrigerating articles according to claim 1, characterized in that: The flow guide assembly also includes: A power motor (2) is installed in the cooling room (1) to drive the guide plate (26) to change its position; An output shaft (21), one end of which is fixed to the output end of the power motor (2) to transmit power; A power gear (22) is fixed to one end of the output shaft (21); The driven gear (23) is meshed with the power gear (22) and transmits the power required for the operation of the flow guide component while changing the rotation speed.

4. A spiral cooling tower for refrigerating articles according to claim 1, characterized in that: The enhancement component also includes: A sliding column (3), one end of which is fixed in the guide plate (26); An electromagnet (31) is fixedly mounted on the sliding column (3); The magnet (32) is slidably disposed on the sliding column (3) and magnetically cooperates with the electromagnet (31) to change the position of the expansion plate (33).

5. A spiral cooling tower for refrigerating articles according to claim 1, characterized in that: The enhancement component also includes: A spring (34), one end of which is fixed on the expansion plate (33) and applies a resetting elastic force to the expansion plate (33); The compensation plate (35) is slidably abutted against the expansion plate (33) to reduce air volume loss.

6. A spiral cooling tower for refrigerating goods according to claim 1, characterized in that: The flow guide assembly also includes: A contact plate (48) is fixed inside the air induction plate (46) and has protrusions on its surface to increase the contact area with the airflow; A scraper (49) is mounted on the support plate (45) and collects water vapor in the draft plate (46); The air collecting plate (410) is fixed to the opening on the other side of the air inducing plate (46) to change the flow direction of the airflow.

7. A spiral cooling tower for refrigerating articles according to claim 1, characterized in that: The auxiliary mechanism includes: Electromagnet 2 (5), fixed on the support plate (45); The magnetic ring (51) is magnetically matched with the second electromagnet (5); The adjustment plate (52) is fixed on the magnetic ring (51) to provide support for the magnetic ring (51) and changes its angle under the drive of the magnetic ring (51).

8. A spiral cooling tower for refrigerating articles according to claim 7, characterized in that: The auxiliary mechanism also includes: A mounting shaft (55) is movably mounted in the support plate (45); A mounting plate (54) fixed on the mounting shaft (55); A fixing rod (53), one end of which is fixed to an end of the mounting plate (54) away from the mounting shaft (55); A telescopic rod (56) having one end fixed to an end of the fixed rod (53) away from the mounting plate (54); One end of the telescopic rod 2 (57) is slidably inserted into the telescopic rod 1 (56), and the other end is provided with a scraper (49).

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