Cooling tunnel conveying mechanism

Abstract

The invention belongs to the technical field of conveying mechanisms, and particularly relates to a cooling tunnel conveying mechanism which comprises a conveying frame, a rotating shaft is rotationally arranged on the front side of the conveying frame, a conveying net plate is rotationally connected to the rotating shaft through a bearing, and the side, away from the rotating shaft, of the conveying net plate is connected with the conveying frame through a first angle adjusting assembly. The conveying frame is further provided with a driving mechanism used for limiting and driving bottled fruit juice transversely placed on the conveying net plate. The driving mechanism comprises two conveying belts which are rotationally arranged on the conveying frame and are symmetrical in the front-back direction. The inclined conveying net plate with the adjustable inclination angle is arranged to be matched with the driving mechanism, bottled fruit juice is transversely placed in an isolation area of the conveying net plate, the bottled fruit juice slowly rolls along with movement of the limiting rod under the action of gravity through inclination of the conveying net plate, liquid in the bottled fruit juice is continuously disturbed, and the bottled fruit juice is conveyed to the storage tank. Heat transfer between liquid at all positions in the bottle body and external cold air is facilitated, overall cooling is effectively accelerated, and the cooling time is shortened.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of conveying mechanism, and particularly relates to a cooling tunnel conveying mechanism. BACKGROUND

[0002] In the production process of fruit juice and jam, after high-temperature filling is completed, the product needs to be cooled quickly through the following process. The filled fruit juice or jam is placed vertically on a conveying net belt. The conveying net belt drives the bottled product into the cooling tunnel at a constant speed. Low-temperature cold air is introduced into the tunnel, and the cold air directly acts on the surface of the bottled product. Through the heat exchange from the outside to the inside of "air-> bottle-> internal liquid", the product is cooled.

[0003] Since the bottled product is always in a vertical and stationary state, the low-temperature cold air can only make one-way contact with the outer surface of the bottle, and the heat exchange only depends on the layer-by-layer conduction from the outside to the inside. This conduction method is slow and cannot realize the efficient interaction between the cold air and the liquid in the bottle, resulting in low overall heat exchange efficiency.

[0004] To solve the problem of insufficient cooling, the industry generally adopts the scheme of "extending the length of the cooling tunnel": by increasing the residence time of the bottled product in the tunnel, the total amount of heat exchange is forced to increase to ensure that the center temperature of the liquid meets the standard. This method reduces the cooling efficiency of the bottled fruit juice or jam, and at the same time, the overall size of the cooling tunnel increases, occupying more production workshop space and indirectly increasing the site investment cost of the enterprise.

[0005] Therefore, there is an urgent need for a cooling tunnel conveying mechanism that can ensure sufficient cooling of bottled fruit juice or jam without increasing the size of the cooling tunnel and reducing the cooling efficiency. SUMMARY

[0006] To solve the above problems, the present application provides a cooling tunnel conveying mechanism to solve the problems mentioned in the background art.

[0007] In order to achieve the above object, the embodiment of the present application provides the following technical scheme: the present application provides a cooling tunnel conveying mechanism, comprising a conveying frame, a rotating shaft is arranged on the front side of the conveying frame, a conveying mesh plate is rotatably connected to the rotating shaft through a bearing, the conveying mesh plate is connected to the conveying frame through an angle adjusting assembly one on the side away from the rotating shaft, and a driving mechanism for limiting and driving the horizontally placed bottled juice on the conveying mesh plate is further arranged on the conveying frame. The driving mechanism comprises two conveying belts which are symmetrically arranged on the conveying frame, a plurality of limiting rods which are uniformly distributed along the length direction of the conveying belts are jointly arranged between the two conveying belts, the upper half of the two conveying belts is parallel to the conveying mesh plate, and the two conveying belts are connected to the conveying frame through a conveying roller group and the inclination angle of the conveying belt is adjustable. The bottled juice is horizontally placed on the inclined conveying mesh plate, the limiting rods limit the bottled juice, the conveying belt drives the limiting rods to move downward along the conveying mesh plate through the conveying roller group, and the bottled juice rolls downward along the conveying mesh plate under the joint action of gravity and the limiting rods.

[0008] According to an advantageous embodiment, the conveying frame comprises a support frame fixedly arranged on the ground, two fixed side plates which are symmetrically arranged on the left and right are fixedly arranged on the support frame, and a cooling air tank group is jointly fixedly arranged between the two fixed side plates.

[0009] According to an advantageous embodiment, the angle adjusting assembly one comprises two adjusting screws one, the adjusting screws one are rotatably arranged on the outer side of the corresponding fixed side plate and close to the rear side through the upper and lower two ear seats one, the lower ends of the two adjusting screws one are jointly connected through a chain wheel set one, adjusting sliding blocks one are threadedly connected to the adjusting screws one, an angle adjusting rod is jointly fixedly arranged between the two adjusting sliding blocks one, and the angle adjusting rod is slidably inserted into the rear side of the conveying mesh plate.

[0010] According to an advantageous embodiment, a waist-shaped hole which penetrates left and right is arranged at the rear side of the conveying mesh plate, and the angle adjusting rod is slidably inserted into the waist-shaped hole.

[0011] According to an advantageous embodiment, a connecting seat is fixedly arranged on the outer surface of the conveying belt, and a plug block is rotatably connected to the two ends of the limiting rod through a connecting shaft, the plug block is slidably inserted into the corresponding connecting seat, and the surface of the connecting seat is threadedly connected to the corresponding plug block through a bolt.

[0012] According to an advantageous embodiment, the conveying roller group comprises three groups of belt pulley groups each consisting of two belt pulleys, the two conveying belts are jointly sleeved on the three groups of belt pulley groups, the two belt pulleys in the first group of belt pulley groups are fixedly arranged on the left and right ends of the rotating shaft respectively, the second group of belt pulley groups is arranged directly below the rotating shaft through an angle adjusting assembly two, and the third group of belt pulley groups is arranged between the rear sides of the two fixed side plates through an angle adjusting assembly three.

[0013] According to an advantageous embodiment, the angle adjusting assembly two comprises two adjusting plates fixedly arranged outside the corresponding fixed side plates, sliding holes are arranged on the adjusting plates, adjusting screws two are rotatably arranged in the sliding holes, the lower ends of the two adjusting screws two are connected in transmission through a chain wheel set two, adjusting sliding blocks two are threadedly connected to the adjusting screws two, a transmission shaft one is rotatably arranged between the two adjusting sliding blocks two, and two belt pulleys in a belt pulley set are fixedly arranged at the left and right ends of the transmission shaft one.

[0014] According to an advantageous embodiment, the angle adjusting assembly three comprises two adjusting screws three, the adjusting screws three are rotatably arranged at the back sides of the corresponding fixed side plates through two upper and lower ear seats two, the lower ends of the two adjusting screws three are connected in transmission through a chain wheel set three, adjusting sliding blocks three are threadedly connected to the adjusting screws three, a transmission shaft two is rotatably arranged between the two adjusting sliding blocks three, and two belt pulleys in a belt pulley set are fixedly arranged at the left and right ends of the transmission shaft two.

[0015] Compared with the prior art, the cooling tunnel conveying mechanism provided by the embodiment of the application has the following beneficial effects: in the scheme, the conveying net plate with an adjustable inclination angle is arranged in cooperation with the driving mechanism, the bottled juice is placed horizontally in the isolation area of the conveying net plate, the bottled juice is slowly rolled along the limiting rod under the action of gravity by using the inclination of the conveying net plate, the internal liquid of the bottled juice is continuously disturbed, the liquid in all positions in the bottled body is more easily subjected to heat transfer with the external cold air, the overall cooling is effectively accelerated, the cooling time is shortened, and the length of the cooling air bellow set can be shortened as much as possible, the overall size of the cooling tunnel is reduced, the space occupied by the production workshop is reduced, and the site investment cost of the enterprise is indirectly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an external perspective view of the application.

[0017] Figure 2 It is an external perspective view of the conveying frame, the conveying net plate and the driving mechanism in the application.

[0018] Figure 3 It is a front side external perspective view of the conveying frame in the application.

[0019] Figure 4 It is a rear side external perspective view of the conveying frame in the application.

[0020] Figure 5 It is Figure 4 It is an enlarged structure view of part A.

[0021] Figure 6The main view of the present application.

[0022] Figure 7 The main view of the present application. Figure 6 The enlarged view of the middle B part.

[0023] In the drawing, the reference signs are as follows: 1, conveying frame; 11, support frame; 12, fixed side plate; 2, rotating shaft; 3, conveying net plate; 4, angle adjusting assembly one; 41, adjusting screw one; 42, adjusting sliding block one; 43, angle adjusting rod; 5, driving mechanism; 51, conveying belt; 52, limiting rod; 53, conveying roller set; 531, pulley set; 532, angle adjusting assembly two; 5321, adjusting plate; 5322, adjusting screw two; 5323, adjusting sliding block two; 5324, transmission shaft one; 533, angle adjusting assembly three; 5331, adjusting screw three; 5332, adjusting sliding block three; 5333, transmission shaft two; 6, cooling air bellow set; 7, connecting seat; 8, plug-in block; 9, bottled juice. DETAILED DESCRIPTION

[0024] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 7 The present application will be described in further detail.

[0025] Please refer to Figure 1 , Figure 2 and Figure 6 , a cooling tunnel conveying mechanism for cooling bottled juice 9 or jam after filling. The conveying mechanism comprises a conveying frame 1, which comprises a support frame 11 fixedly arranged on the ground, two fixed side plates 12 symmetrically arranged on the support frame 11, and a cooling air bellow set 6 fixedly arranged between the two fixed side plates 12. A rotating shaft 2 is arranged on the front side of the conveying frame 1, and a conveying net plate 3 is rotatably connected to the rotating shaft 2 through a bearing. The conveying net plate 3 is connected to the conveying frame 1 through an angle adjusting assembly one 4 on the side away from the rotating shaft 2. The conveying frame 1 is also provided with a driving mechanism 5 for limiting and driving the bottled juice 9 horizontally placed on the conveying net plate 3. The cooling air bellow set 6 is used to generate cold air to cool the bottled juice 9 on the conveying net plate 3. The specific structure of the cooling air bellow set 6 is known to those skilled in the art, and therefore will not be described in detail in this scheme.

[0026] Please refer to Figure 1 , Figure 2 and Figure 6 , the driving mechanism 5 comprises two conveying belts 51 rotatably arranged on the conveying frame 1 and symmetrically arranged front and back. A plurality of limiting rods 52 are uniformly distributed along the length direction of the two conveying belts 51 and rotatably arranged between the two conveying belts 51. The upper half of the two conveying belts 51 is parallel to the conveying net plate 3, and the two conveying belts 51 are connected to the conveying frame 1 through a conveying roller set 53, and the inclination angle of the conveying belt 51 is adjustable.

[0027] Specifically, two conveying belts 51 and the adjacent two conveying belts 51 form an isolation area, the isolation areas are uniformly distributed along the length direction of the conveying belt 51, the staff places the bottled juice 9 horizontally on the conveying mesh plate 3 and in the isolation area, because the conveying mesh plate 3 is in an inclined state, the outer surface of the bottled juice 9 is close to a cylinder, so that it rolls downward under the action of gravity, but the bottled juice 9 cannot roll autonomously due to the action of the limiting rod 52 of the isolation area, when the conveying belt 51 drives the limiting rod 52 to move along the surface of the conveying mesh plate 3 under the drive of the conveying roller group 53, the bottled juice 9 slowly rolls along the conveying mesh plate 3 under the action of gravity, at this time, the low-temperature air in the cooling air box group 6 acts on the surface of the bottled juice 9 to cool it, at the same time, the bottled juice 9 continuously rolls, so that the liquid inside the bottled juice 9 is continuously disturbed, promoting the liquid at all positions inside the bottled juice 9 to be more easily in thermal communication with the external cold air, accelerating the internal cooling of the bottled juice 9, so as to shorten the cooling time of the overall cooling of the bottled juice 9, so as to shorten the length of the cooling air box group 6 as much as possible under the premise of not changing the conveying speed, and still ensure that the overall bottled juice 9 can reach the preset cooling temperature.

[0028] It should be noted that the surfaces of the conveying mesh plate 3 and the limiting rod 52 are polished to reduce the friction between the bottled juice 9 and the conveying mesh plate 3 and the limiting rod 52 as much as possible. At the same time, the scheme can not only convey bottled juice 9 or jam, but also can convey other bottled beverages or foods that need to be cooled and have a cylindrical outer shape.

[0029] Referring to Figure 4 and Figure 5 , the outer surface of the conveying belt 51 is fixedly provided with a connecting seat 7, both ends of the limiting rod 52 are rotatably connected with a plug-in block 8 through a connecting shaft, the plug-in block 8 is slidably plugged with the corresponding connecting seat 7, and the surface of the connecting seat 7 is threadedly connected with the corresponding plug-in block 8 through bolts. The limiting rod 52 can rotate relative to the conveying belt 51, when the limiting rod 52 contacts the bottled juice 9 to generate pressure, the limiting rod 52 can be unloaded by rotating, so as to avoid that the limiting rod 52 and the bottled juice 9 generate too much friction due to excessive pressure.

[0030] Referring to Figure 2 , Figure 4 , Figure 6 and Figure 7The angle adjusting assembly 1 4 comprises two adjusting screws 41 which are rotatably arranged outside the corresponding fixed side plate 12 near the rear side, the lower ends of the two adjusting screws 41 are connected by a chain wheel set 1, the adjusting screws 41 are threadedly connected with adjusting sliders 42, the two adjusting sliders 42 are fixedly arranged with an angle adjusting rod 43, and the angle adjusting rod 43 is slidably inserted into the rear side of the conveying mesh plate 3. The rear side of the conveying mesh plate 3 is provided with a waist-shaped hole which penetrates left and right, and the angle adjusting rod 43 is slidably inserted into the waist-shaped hole. When the angle adjusting rod 43 moves up and down, the waist-shaped hole can allow the "lateral sliding compensation" between the angle adjusting rod 43 and the conveying mesh plate 3 (to avoid the angle adjusting rod 43 being stuck when the conveying mesh plate 3 rotates).

[0031] In specific work, one of the adjusting screws 41 is provided with a rotating knob 1, and the staff can control the rotating knob 1 to rotate, so that the two adjusting screws 41 rotate to drive the adjusting sliders 42 to move up and down under the cooperation of the chain wheel set 1, thereby driving the angle adjusting rod 43 to move up and down. The up-and-down movement of the angle adjusting rod 43 can control the rear side of the conveying mesh plate 3 to rotate around the rotating shaft 2 as the rotation point to adjust the angle, and change the inclination of the conveying mesh plate 3.

[0032] Referring to Figure 2 , Figure 6 and Figure 7 , in order to ensure that the upper half of the conveying belt 51 is always parallel to the conveying mesh plate 3, the conveying roller set 53 comprises three groups of pulley sets 531 each consisting of two pulleys, two conveying belts 51 are jointly arranged on the three groups of pulley sets 531, the two pulleys in the first group of pulley sets 531 are fixedly arranged at the left and right ends of the rotating shaft 2, the second group of pulley sets 531 is arranged below the rotating shaft 2 through an angle adjusting assembly 532, and the third group of pulley sets 531 is arranged between the rear sides of the two fixed side plates 12 through an angle adjusting assembly 3. One of the fixed side plates 12 is fixedly arranged with a driving motor outside near the front side, and the output shaft of the driving motor is fixedly connected with one end of the rotating shaft 2.

[0033] In specific work, the rotating shaft 2 is driven to rotate by the driving motor, so that the rotating shaft 2 drives the corresponding pulleys to rotate, thereby driving the conveying belt 51 to move. In addition to the pulley set 531 connected with the rotating shaft 2, the other two groups of pulley sets 531 are respectively adjusted in height through the angle adjusting assembly 2 and the angle adjusting assembly 3, when the inclination angle of the conveying mesh plate 3 changes, the angle of the upper half of the conveying belt 51 can be adjusted by changing the positions of the two groups of pulley sets 531, so that the upper half of the conveying belt 51 can always be parallel to the conveying mesh plate 3, so that the limiting rod 52 can limit the horizontally placed bottled juice 9 on the surface of the conveying mesh plate 3.

[0034] Referring to Figure 3 and Figure 6 The angle adjusting assembly two 532 comprises two adjusting plates 5321 fixedly arranged outside the corresponding fixed side plates 12, sliding holes are formed in the adjusting plates 5321, adjusting screws two 5322 are rotatably arranged in the sliding holes, the lower ends of the two adjusting screws two 5322 are connected by a chain wheel set two, adjusting blocks two 5323 are threadedly connected to the adjusting screws two 5322, a transmission shaft one 5324 is rotatably arranged between the two adjusting blocks two 5323, and two belt pulleys in the belt pulley set 531 are fixedly arranged at the left and right ends of the transmission shaft one 5324. The upper end of one of the adjusting screws two 5322 is fixedly connected with a rotating knob two, the rotating knob two is rotated by the worker, the two adjusting screws two 5322 are simultaneously rotated under the cooperation of the chain wheel set two, the adjusting blocks two 5323 are driven to move upward, the belt pulley set 531 below the rotating shaft 2 is moved upward, the conveying belt 51 in the taut state is loosened, and then the conveying belt 51 is adjusted in the inclined angle in cooperation with the angle adjusting assembly three 533.

[0035] Referring to Figure 4 and Figure 6 The angle adjusting assembly three 533 comprises two adjusting screws three 5331 rotatably arranged at the rear side of the corresponding fixed side plates 12 through upper and lower ear seats two, the lower ends of the two adjusting screws three 5331 are connected by a chain wheel set three, adjusting blocks three 5332 are threadedly connected to the adjusting screws three 5331, a transmission shaft two 5333 is rotatably arranged between the two adjusting blocks three 5332, and two belt pulleys in the belt pulley set 531 are fixedly arranged at the left and right ends of the transmission shaft two 5333. The upper end of one of the adjusting screws three 5331 is fixedly connected with a rotating knob three. After the conveying belt 51 is adjusted to the relaxed state by the angle adjusting assembly two 532, the rotating knob three is rotated by the worker, the two adjusting screws three 5331 are simultaneously rotated under the cooperation of the chain wheel set three, the adjusting blocks three 5332 are driven to move upward and downward, the belt pulley set 531 at the rear side of the conveying net plate 3 is moved upward and downward to the appropriate position, the conveying belt 51 and the conveying net plate 3 are ensured to be in the parallel state, and then the belt pulley set 531 is adjusted by the angle adjusting assembly two 532, so that the conveying belt 51 is again in the taut state from the relaxed state.

[0036] By changing the traditional vertical placement of the bottled juice 9 to horizontal placement in the isolation area of the conveying net plate 3, the bottled juice 9 is slowly rolled along the limiting rod 52 under the action of gravity by tilting the conveying net plate 3. During the rolling process, the internal liquid of the bottled juice 9 is constantly disturbed, which facilitates the heat transfer between the internal liquid and the cold air generated by the cooling air box group 6, avoids the heat transfer blind area, effectively accelerates the overall cooling, and shortens the cooling time. Without changing the conveying speed, due to the improved cooling efficiency, the length of the cooling air box group 6 does not need to be lengthened to ensure that the bottled juice 9 reaches the preset cooling temperature, the length of the cooling tunnel can be shortened as much as possible, the overall size of the cooling tunnel is reduced, the space occupation of the production workshop is reduced, and the enterprise site investment cost is indirectly reduced.

[0037] It needs to be specially pointed out that although the present scheme changes the originally vertically placed bottled juice 9 to horizontal placement, the horizontal placement of a single bottled juice 9 increases the area of the conveying belt 51 compared with the vertical placement, which may result in a much smaller number of horizontally placed bottled juice 9 on a single conveying path. However, in the actual use process of the cooling tunnel, the vertically placed bottled juice 9 also needs to maintain a relatively large spacing, because too high density will cause uneven cooling, poor gas flow between the bottle bodies, and other problems, therefore, whether the vertical placement or the horizontal placement is adopted, the number of bottled juice 9 on a single conveying path will not have a large difference.

[0038] In the description of the present application, it needs to be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms “first”, “second”, “No. 1”, “No. 2” are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second”, “No. 1”, “No. 2” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “multiple” is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0040] In this application, unless otherwise clearly indicated and limited, the terms "setting", "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] The embodiments of the specific implementation are the preferred embodiments of the application, not limited by the protection scope of the application, therefore, any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A cooling tunnel conveying mechanism, comprising a conveying frame, characterized in that: The front side of the conveyor frame is rotatably provided with a rotating shaft, and a conveying mesh plate is rotatably connected to the rotating shaft through a bearing. The side of the conveying mesh plate away from the rotating shaft is connected to the conveyor frame through an angle adjustment component. The conveyor frame is also provided with a driving mechanism for limiting and driving the bottled juice placed horizontally on the conveying mesh plate. The driving mechanism includes two conveyor belts rotatably arranged on the conveyor frame and symmetrically arranged in front and back. A plurality of limit rods evenly distributed along the length direction of the two conveyor belts are arranged to rotate together. The upper half of the two conveyor belts are kept parallel to the conveyor mesh plate. The two conveyor belts are connected to the conveyor frame through a conveyor roller group and the inclination angle of the conveyor belts is adjustable. The bottled juice is placed horizontally on the inclined conveyor mesh plate, and the limit rod limits the bottled juice. The conveyor belt drives the limit rod to move down along the conveyor mesh plate through the conveyor roller group. The bottled juice rolls down along the conveyor mesh plate under the combined action of gravity and the limit rod.

2. A cooling tunnel conveying mechanism according to claim 1, characterized in that: The conveying rack comprises a supporting frame fixedly arranged on the ground, two fixed side plates symmetrical to each other are fixedly arranged on the supporting frame, and a cooling air box group is fixedly arranged between the two fixed side plates.

3. A cooling tunnel conveying mechanism according to claim 2, characterized in that: The angle adjustment assembly includes two adjusting screws, which are rotatably arranged on the outer side of the corresponding fixed side plate and close to the rear side through two upper and lower ear seats. The lower ends of the two adjusting screws are connected through a sprocket group. An adjusting slider is threadedly connected to the adjusting screw. An angle adjustment rod is fixed between the two adjusting sliders, and the angle adjustment rod is slidably plugged into the rear side of the conveying mesh plate.

4. A cooling tunnel conveying mechanism according to claim 3, characterized in that: A waist-shaped hole is provided on the rear side of the conveying mesh plate and passes through the waist-shaped hole. The angle adjustment rod is slidably inserted into the waist-shaped hole.

5. The cooling tunnel conveying mechanism according to claim 1, characterized in that: A connecting seat is fixedly provided on the outer surface of the conveyor belt, and both ends of the limit rod are rotatably connected to the plug-in blocks through the connecting shaft. The plug-in blocks are slidably plugged into the corresponding connecting seats, and the surface of the connecting seat is threadedly connected to the corresponding plug-in blocks through bolts.

6. A cooling tunnel conveying mechanism according to claim 2, characterized in that: The conveying roller group includes three groups of pulley groups, each group consists of two pulleys, and the two conveyor belts are jointly mounted on the three groups of pulley groups. The two pulleys in the first group of pulley groups are respectively fixed at the left and right ends of the rotating shaft, the second group of pulley groups is set directly below the rotating shaft through the angle adjustment component two, and the third group of pulley groups is set between the rear sides of the two fixed side plates through the angle adjustment component three.

7. A cooling tunnel conveying mechanism according to claim 6, characterized in that: The angle adjustment component 2 includes two adjustment plates, which are fixedly arranged on the outer sides of the corresponding fixed side plates. A sliding hole is opened on the adjustment plate, and an adjusting screw 2 is rotatably arranged in the sliding hole. The lower ends of the two adjusting screws 2 are jointly connected through a sprocket group 2 for transmission. An adjusting slider 2 is threadedly connected to the adjusting screw 2. A transmission shaft 1 is jointly rotated between the two adjusting sliders 2, and two pulleys in a group of pulley groups are respectively fixedly arranged at the left and right ends of the transmission shaft 1.

8. The cooling tunnel conveying mechanism according to claim 6, characterized in that: The angle adjustment component three includes two adjusting screws three, which are rotatably arranged on the rear side of the corresponding fixed side plate through the upper and lower ear seats two, and the lower ends of the two adjusting screws three are jointly connected through the sprocket group three for transmission, and the adjusting screw three is threadedly connected to the adjusting slider three, and a transmission shaft two is set between the two adjusting sliders three for common rotation, and the two pulleys in a group of pulley groups are respectively fixedly arranged on the left and right ends of the transmission shaft two.

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