A cooling tunnel conveyor mechanism

Abstract

The present application belongs to the technical field of conveying mechanism, and particularly relates to a cooling tunnel conveying mechanism, which comprises a conveying frame, a rotating shaft is arranged on the front side of the conveying frame, a conveying net plate is rotatably connected to the rotating shaft through a bearing, the side of the conveying net plate away from the rotating shaft is connected to the conveying frame through an angle adjusting assembly one, and a driving mechanism for limiting and driving bottled juice horizontally placed on the conveying net plate is further arranged on the conveying frame. The driving mechanism comprises two conveying belts which are arranged on the conveying frame in a rotation mode and are symmetrical in front and back. Through the cooperation of the conveying net plate with an adjustable inclination angle and the driving mechanism, the bottled juice is horizontally placed in the isolation area of the conveying net plate, the bottled juice is slowly rolled under the action of gravity by moving along the limiting rod through the inclination of the conveying net plate, the internal liquid of the bottled juice is continuously disturbed, the liquid in all positions of the bottled juice is more easily transferred with the external cold air, the overall cooling is effectively accelerated, and the cooling time is shortened.

Description

Technical Field

[0001] This invention belongs to the field of conveying mechanism technology, and particularly relates to a cooling tunnel conveying mechanism. Background Technology

[0002] In the production of juice and jam, after the product has completed high-temperature filling, it needs to be rapidly cooled through the following process: The filled bottled juice or jam is placed vertically on a conveyor belt. The conveyor belt carries the bottled product at a uniform speed into a cooling tunnel. Low-temperature cold air is introduced into the tunnel, and the cold air acts directly on the surface of the bottled product. Through heat exchange from the outside in (air → bottle → liquid), the product is cooled.

[0003] Because bottled products are always in a vertical, stationary state, the cold air can only have one-way contact with the outer surface of the bottle, and heat exchange relies solely on layer-by-layer conduction from the outside in. This conduction method is slow and cannot achieve efficient interaction between the cold air and the liquid inside the bottle, resulting in low overall heat exchange efficiency.

[0004] To address the issue of insufficient cooling, the industry commonly employs a solution of "extending the length of the cooling tunnel": by increasing the residence time of bottled products within the tunnel, the total heat exchange is forcibly increased to ensure that the liquid's core temperature meets the standard. This approach reduces the cooling efficiency of bottled juices or jams, and at the same time, the overall size of the cooling tunnel increases, occupying more production workshop space and indirectly increasing the company's site investment costs.

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

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

[0007] To achieve the above objectives, this application provides the following technical solution: The present invention provides a cooling tunnel conveying mechanism, including a conveying frame. A rotating shaft is rotatably mounted on the front side of the conveying frame, and a conveying mesh plate is rotatably connected to the rotating shaft via bearings. The side of the conveying mesh plate away from the rotating shaft is connected to the conveying frame via an angle adjustment assembly. The conveying frame is also equipped with a drive mechanism for limiting and driving bottled juice placed horizontally on the conveying mesh plate. The drive mechanism includes two conveyor belts rotatably mounted on the conveying frame and symmetrically arranged front and rear. Multiple limiting rods are rotatably mounted between the two conveyor belts and evenly distributed along their length. The upper halves of both conveyor belts are parallel to the conveying mesh plate, and the two conveyor belts are connected to the conveying frame via a conveying roller assembly, with the tilt angle of the conveyor belts adjustable. Bottled juice is placed horizontally on the tilted conveying mesh plate, and the limiting rods limit the bottled juice. The conveyor belts, through the conveying roller assembly, drive the limiting rods downwards along the conveying mesh plate, and the bottled juice rolls downwards along the conveying mesh plate under the combined action of gravity and the limiting rods.

[0008] According to an advantageous embodiment, the conveyor frame includes a support frame fixedly mounted on the ground, and two symmetrical fixed side plates are fixedly mounted on the support frame, with a cooling air box assembly fixedly mounted between the two fixed side plates.

[0009] According to an advantageous embodiment, the angle adjustment assembly includes two adjustment screws. The adjustment screws are rotatably mounted on the outer side of the corresponding fixed side plate and close to the rear side via two upper and lower lugs. The lower ends of the two adjustment screws are connected to each other via a sprocket assembly. An adjustment slider is threaded onto the adjustment screws. An angle adjustment rod is fixedly mounted between the two adjustment sliders. The angle adjustment rod is slidably inserted into the rear side of the conveyor mesh plate.

[0010] According to an advantageous embodiment, a waist-shaped hole that runs through the left and right sides is provided on the rear side of the conveyor mesh plate, and the angle adjustment rod is slidably inserted into the waist-shaped hole.

[0011] According to an advantageous embodiment, a connecting seat is fixedly provided on the outer surface of the conveyor belt, and both ends of the limiting rod are rotatably connected to a plug block via a connecting shaft. The plug block is slidably plugged into the corresponding connecting seat, and the surface of the connecting seat is threadedly connected to the corresponding plug block by bolts.

[0012] According to an advantageous embodiment, the conveyor roller group includes three sets of pulleys, each set consisting of two pulleys. Two conveyor belts are mounted together on the three sets of pulleys. The two pulleys in the first set of pulleys are fixedly mounted on the left and right ends of the rotating shaft, respectively. The second set of pulleys is mounted directly below the rotating shaft via an angle adjustment component two. The third set of pulleys is mounted between the rear sides of the two fixed side plates via an angle adjustment component three.

[0013] According to an advantageous embodiment, the angle adjustment assembly two includes two adjustment plates, which are fixedly disposed on the outer side of the corresponding fixed side plate. The adjustment plates are provided with sliding holes, and adjustment screws two are rotatably disposed in the sliding holes. The lower ends of the two adjustment screws two are connected to each other through a sprocket set two. Adjustment sliders two are threadedly connected to the adjustment screws two. A drive shaft one is rotatably disposed between the two adjustment sliders two. Two pulleys in a set of pulleys are respectively fixedly disposed at the left and right ends of the drive shaft one.

[0014] According to an advantageous embodiment, the angle adjustment assembly three includes two adjustment screws three, which are rotatably mounted on the rear side of the corresponding fixed side plate via two upper and lower lugs two. The lower ends of the two adjustment screws three are connected by a sprocket set three. An adjustment slider three is threaded onto the adjustment screw three. A transmission shaft two is rotatably mounted between the two adjustment sliders three. Two pulleys in a set of pulleys are respectively fixed at the left and right ends of the transmission shaft two.

[0015] Compared with existing technologies, the cooling tunnel conveying mechanism provided in this embodiment of the invention has the following beneficial effects: In this solution, by setting an inclined conveyor mesh plate with an adjustable inclination angle in cooperation with the driving mechanism, bottled juice is placed horizontally in the isolation area of ​​the conveyor mesh plate. The inclination of the conveyor mesh plate causes the bottled juice to slowly roll under the action of gravity, moving with the limiting rod. This causes continuous agitation of the liquid inside the bottled juice, facilitating heat transfer between the liquid in all positions inside the bottle and the external cold air, effectively accelerating overall cooling and shortening the cooling time. Without changing the conveying rate, due to the improved cooling efficiency, it is not necessary to extend the length of the cooling fan assembly to ensure the bottled juice reaches the preset cooling temperature. The length of the cooling fan assembly can be shortened as much as possible, reducing the overall size of the cooling tunnel, minimizing the space occupied in the production workshop, and indirectly reducing the enterprise's site investment costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is an external three-dimensional structural diagram of the conveyor frame, conveyor mesh plate, and drive mechanism in this invention.

[0018] Figure 3 This is a three-dimensional view of the front external structure of the conveyor frame in this invention.

[0019] Figure 4 This is a three-dimensional view of the rear external structure of the conveyor frame in this invention.

[0020] Figure 5 for Figure 4 Enlarged structural diagram of section A.

[0021] Figure 6This is a front sectional planar structural diagram of the present invention.

[0022] Figure 7 for Figure 6 Enlarged structural diagram of section B.

[0023] The attached diagram shows the following components: 1. Conveyor frame; 11. Support frame; 12. Fixed side plate; 2. Rotating shaft; 3. Conveyor mesh plate; 4. Angle adjustment component one; 41. Adjusting screw one; 42. Adjusting slider one; 43. Angle adjustment rod; 5. Drive mechanism; 51. Conveyor belt; 52. Limiting rod; 53. Conveyor roller group; 531. Pulley group; 532. Angle adjustment component two; 5321. Adjusting plate; 5322. Adjusting screw two; 5323. Adjusting slider two; 5324. Drive shaft one; 533. Angle adjustment component three; 5331. Adjusting screw three; 5332. Adjusting slider three; 5333. Drive shaft two; 6. Cooling air box group; 7. Connecting seat; 8. Insertion block; 9. Bottled juice. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will now be described in further detail.

[0025] Please refer to the following: Figure 1 , Figure 2 and Figure 6 A cooling tunnel conveying mechanism is disclosed for cooling bottled juice 9 or jam after filling. The conveying mechanism includes a conveying frame 1, which includes a support frame 11 fixedly mounted on the ground. Two symmetrical fixed side plates 12 are fixedly mounted on the support frame 11, and a cooling air box assembly 6 is fixedly mounted between the two fixed side plates 12. A rotating shaft 2 is rotatably mounted on the front side of the conveying frame 1. A conveying mesh plate 3 is rotatably connected to the rotating shaft 2 via a bearing. The side of the conveying mesh plate 3 away from the rotating shaft 2 is connected to the conveying frame 1 via an angle adjustment component 4. The conveying frame 1 is also equipped with a drive mechanism 5 for limiting and driving the bottled juice 9 placed horizontally on the conveying mesh plate 3. The cooling air box assembly 6 is used to generate cold air to cool the bottled juice 9 on the conveying mesh plate 3. The specific structure of the cooling air box assembly 6 is common knowledge to those skilled in the art, and therefore is not described in detail in this solution.

[0026] See Figure 1 , Figure 2 and Figure 6 The drive mechanism 5 includes two conveyor belts 51 that are rotatably mounted on the conveyor frame 1 and are symmetrical in front and behind. Multiple limiting rods 52 that are evenly distributed along the length of the two conveyor belts 51 are rotatably mounted together. The upper half of the two conveyor belts 51 are parallel to the conveyor mesh plate 3. The two conveyor belts 51 are connected to the conveyor frame 1 through the conveyor roller group 53 and the tilt angle of the conveyor belts 51 is adjustable.

[0027] In actual operation, the two conveyor belts 51 and the adjacent two conveyor belts 51 form an isolation zone, which is evenly distributed along the length of the conveyor belts 51. The worker places the bottled juice 9 horizontally on the conveyor mesh plate 3 within the isolation zone. Because the conveyor mesh plate 3 is in an inclined state, the outer surface of the bottled juice 9 is close to cylindrical, causing it to roll downwards under the action of gravity. However, due to the action of the isolation zone limit rod 52, the bottled juice 9 cannot roll on its own. When the conveyor belt 51, driven by the conveyor roller group 53, moves the limit rod 52 along the surface of the conveyor mesh plate 3, the bottled juice 9, under the action of gravity... As the bottled juice 9 slowly rolls along the conveyor mesh plate 3, the low-temperature air inside the cooling air box assembly 6 acts on the surface of the bottled juice 9 to cool it down. At the same time, the continuous rolling of the bottled juice 9 causes the liquid inside the bottled juice 9 to be constantly disturbed, promoting easier heat transfer between the liquid in all parts of the bottled juice 9 and the external cold air, accelerating the internal cooling of the bottled juice 9, thereby shortening the overall cooling time of the bottled juice 9. Thus, without changing the conveying speed, the length of the cooling air box assembly 6 can be shortened as much as possible, while still ensuring that the bottled juice 9 can reach the preset cooling temperature.

[0028] It should be noted that the surfaces of the conveyor mesh plate 3 and the limiting rod 52 are polished to minimize friction when the bottled juice 9 comes into contact with the conveyor mesh plate 3 and the limiting rod 52. Furthermore, this solution can not only convey bottled juice 9 or jam, but also other bottled beverages or foods that require cooling and have a cylindrical shape.

[0029] See Figure 4 and Figure 5 A connecting seat 7 is fixedly installed on the outer surface of the conveyor belt 51. Both ends of the limiting rod 52 are rotatably connected to the insertion block 8 via a connecting shaft. The insertion block 8 is slidably inserted into the corresponding connecting seat 7, and the surface of the connecting seat 7 is threadedly connected to the corresponding insertion block 8 via bolts. The limiting rod 52 can rotate relative to the conveyor belt 51. When the limiting rod 52 comes into contact with the bottled juice 9 and generates pressure, the limiting rod 52 can relieve the force by rotating, thereby avoiding excessive pressure between the limiting rod 52 and the bottled juice 9 and resulting in excessive friction.

[0030] See Figure 2 , Figure 4 , Figure 6 and Figure 7The angle adjustment assembly 4 includes two adjusting screws 41. The adjusting screws 41 are rotatably mounted on the outer side of the corresponding fixed side plate 12 and near the rear side via two upper and lower lugs. The lower ends of the two adjusting screws 41 are connected via a sprocket assembly. Adjusting sliders 42 are threaded onto the adjusting screws 41. An angle adjusting rod 43 is fixedly mounted between the two adjusting sliders 42. The angle adjusting rod 43 is slidably inserted into the rear side of the conveyor mesh plate 3. A through-hole (or oblong-shaped hole) is provided on the rear side of the conveyor mesh plate 3, and the angle adjusting rod 43 is slidably inserted into the through-hole. When the angle adjusting rod 43 moves up and down, the through-hole allows for "lateral sliding compensation" between the angle adjusting rod 43 and the conveyor mesh plate 3 (preventing the angle adjusting rod 43 from getting stuck when the conveyor mesh plate 3 rotates).

[0031] In actual operation, one of the adjusting screws 41 is equipped with a rotating knob. The operator can control the rotating knob to rotate, and with the cooperation of the sprocket assembly, the two adjusting screws 41 rotate, causing the adjusting slider 42 to move up and down, thereby causing 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 conveyor screen 3 to rotate around the rotating shaft 2 to adjust the angle and change the inclination of the conveyor screen 3.

[0032] See Figure 2 , Figure 6 and Figure 7 To ensure that the upper half of the conveyor belt 51 remains parallel to the conveyor mesh plate 3, the conveyor roller group 53 includes three sets of pulley groups 531, each consisting of two pulleys. The two conveyor belts 51 are mounted on the three sets of pulley groups 531. The two pulleys in the first set of pulley groups 531 are fixedly installed at the left and right ends of the rotating shaft 2, respectively. The second set of pulley groups 531 is positioned directly below the rotating shaft 2 via an angle adjustment component 2 532. The third set of pulley groups 531 is positioned between the rear sides of the two fixed side plates 12 via an angle adjustment component 3 533. A drive motor is fixedly installed on the outer side of one of the fixed side plates 12 near the front, and the output shaft of the drive motor is fixedly connected to one end of the rotating shaft 2.

[0033] In operation, the drive motor drives the rotating shaft 2 to rotate, which in turn drives the corresponding pulleys to rotate, thereby moving the conveyor belt 51. In addition to the pulley group 531 connected to the rotating shaft 2, the other two pulley groups 531 are height-adjusted by angle adjustment components 2 532 and 3 533, respectively. When the tilt angle of the conveyor screen 3 changes, the angle of the upper half of the conveyor belt 51 can be adjusted by changing the position of the two pulley groups 531, thereby ensuring that the upper half of the conveyor belt 51 can always remain parallel to the conveyor screen 3, so that the limiting rod 52 can limit the bottled juice 9 placed horizontally on the surface of the conveyor screen 3.

[0034] See Figure 3 and Figure 6 The angle adjustment component 2 532 includes two adjustment plates 5321, which are fixedly installed on the outer side of the corresponding fixed side plate 12. The adjustment plates 5321 have sliding holes, and the adjustment screws 2 5322 are rotatably installed in the sliding holes. The lower ends of the two adjustment screws 2 5322 are connected by a sprocket set 2. The adjustment sliders 2 5323 are threadedly connected to the adjustment screws 2 5322. The two adjustment sliders 2 5323 are rotatably connected to a drive shaft 1 5324. Two pulleys in a set of pulleys 531 are fixedly installed at the left and right ends of the drive shaft 1 5324 respectively. One of the adjusting screws 5322 has a rotating knob 2 fixedly connected to its upper end. The operator controls the rotating knob 2 to rotate, which, with the cooperation of the sprocket assembly 2, causes both adjusting screws 5322 to rotate simultaneously, driving their respective adjusting sliders 5323 to move upward. This causes a set of pulleys 531 located below the rotating shaft 2 to move upward, thereby loosening the originally taut conveyor belt 51. Then, in cooperation with the angle adjusting component 533, the tilt angle of the conveyor belt 51 is adjusted.

[0035] See Figure 4 and Figure 6 The angle adjustment assembly 3 533 includes two adjusting screws 3 5331. The adjusting screws 3 5331 are rotatably mounted on the rear side of the corresponding fixed side plate 12 via two upper and lower lugs 2. The lower ends of the two adjusting screws 3 5331 are connected via a sprocket set 3. Adjusting sliders 3 5332 are threaded onto the adjusting screws 3 5331. A drive shaft 2 5333 rotatably connects the two adjusting sliders 3 5332. Two pulleys in a pulley set 531 are fixedly mounted on the left and right ends of the drive shaft 2 5333. A rotary knob 3 is fixedly connected to the upper end of one of the adjusting screws 3 5331. After adjusting the conveyor belt 51 to a relaxed state using the angle adjustment component 2 532, the operator rotates the control knob 3, which, in conjunction with the sprocket group 3, causes the two adjustment screws 3 5331 to rotate simultaneously, driving their respective adjustment sliders 3 5332 to move up and down. This allows a set of pulleys 531 located behind the conveyor mesh plate 3 to move up and down to adjust to the appropriate position, ensuring that the conveyor belt 51 is parallel to the conveyor mesh plate 3. Then, the corresponding pulley group 531 is adjusted using the angle adjustment component 2 532 to bring the conveyor belt 51 back to a taut state from the relaxed state.

[0036] By changing the traditional vertical placement of bottled juice 9 to horizontal placement within the isolation area of ​​the conveyor mesh 3, the tilt of the conveyor mesh 3 allows the bottled juice 9 to slowly roll under gravity, moving with the limit rod 52. During this rolling process, the liquid inside the bottled juice 9 is constantly agitated, facilitating heat transfer between all parts of the liquid and the cold air generated by the cooling fan assembly 6. This avoids heat transfer blind spots and effectively accelerates overall cooling, shortening the cooling time. Without changing the conveying speed, the improved cooling efficiency eliminates the need to extend the length of the cooling fan assembly 6 to ensure the bottled juice 9 reaches the preset cooling temperature. The length of the cooling fan assembly 6 can be shortened as much as possible, reducing the overall size of the cooling tunnel, minimizing the space occupied in the production workshop, and indirectly reducing the company's site investment costs.

[0037] It should be noted that although this solution changes the originally vertically placed bottled juice 9 to horizontally placed bottles, spatially increasing the area of ​​the conveyor belt 51 compared to vertical placement, potentially resulting in a significantly smaller number of horizontally placed bottles on a single conveyor path, in actual cooling tunnel use, vertically placed bottled juice 9 usually needs to maintain a large spacing. Excessive density can lead to uneven cooling and impeded gas flow between bottles. Therefore, regardless of whether vertical or horizontal placement is used, the number of bottled juice 9 on a single conveyor path will not differ significantly.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A cooling tunnel conveyor mechanism comprising a conveyor frame, characterised in that: The front side of the conveying frame is rotationally provided with a rotating shaft, a conveying mesh plate is rotationally connected to the rotating shaft through a bearing, the side of the conveying mesh plate away from the rotating shaft is connected to the conveying frame through an angle adjusting assembly one, 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 rotationally arranged on the conveying frame and symmetrically arranged front and back, a plurality of limiting rods are rotationally arranged between the two conveying belts and are uniformly distributed along the length direction of the 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 set and the inclination angle of the conveying belts is adjustable. The bottled juice is horizontally placed on the inclined conveying mesh plate, the limiting rods limit the bottled juice, the conveying belts drive the limiting rods to move downward along the conveying mesh plate through the conveying roller set, and the bottled juice rolls downward along the conveying mesh plate under the joint action of gravity and the limiting rods.

2. A cooling tunnel conveyor according to claim 1, characterised in that, The conveying frame comprises a support frame fixedly arranged on the ground, two fixed side plates symmetrically arranged on the support frame, and a cooling air box set fixedly arranged between the two fixed side plates.

3. A cooling tunnel conveyor according to claim 2, wherein, The angle adjusting assembly one comprises two adjusting screws one, the adjusting screws one are rotationally 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 drivingly connected through a chain wheel set one, the adjusting screws one are threadedly connected with adjusting sliding blocks one, the two adjusting sliding blocks one are fixedly arranged with an angle adjusting rod, and the angle adjusting rod is slidingly inserted into the rear side of the conveying mesh plate.

4. A cooling tunnel conveyor according to claim 3, wherein, The rear side of the conveying mesh plate is provided with a waist-shaped hole penetrating left and right, and the angle adjusting rod is slidingly inserted into the waist-shaped hole.

5. A cooling tunnel conveyor according to claim 1, wherein, The outer surface of the conveying belt is fixedly provided with a connecting seat, the two ends of the limiting rod are rotationally connected with an insertion block through a connecting shaft, the insertion block is slidingly inserted into the corresponding connecting seat, and the surface of the connecting seat is threadedly connected with the corresponding insertion block through a bolt.

6. A cooling tunnel conveyor according to claim 2, wherein, The conveying roller set comprises three groups of belt pulley sets each consisting of two belt pulleys, the two conveying belts are jointly sleeved on the three groups of belt pulley sets, the two belt pulleys in the first group of belt pulley sets are fixedly arranged at the left and right ends of the rotating shaft, the second group of belt pulley sets is arranged below the rotating shaft through an angle adjusting assembly two, and the third group of belt pulley sets is arranged between the rear sides of the two fixed side plates through an angle adjusting assembly three.

7. A cooling tunnel conveyor according to claim 6, wherein, The angle adjusting assembly two comprises two adjusting plates, the adjusting plates are fixedly arranged on the outer side of the corresponding fixed side plate, a sliding hole is formed in the adjusting plate, an adjusting screw two is rotationally arranged in the sliding hole, the lower ends of the two adjusting screws two are drivingly connected through a chain wheel set two, the adjusting screw two is threadedly connected with an adjusting sliding block two, and the two adjusting sliding blocks two are rotationally arranged with a transmission shaft one, and the two belt pulleys in the belt pulley set are fixedly arranged at the left and right ends of the transmission shaft one.

8. A cooling tunnel conveyor according to claim 6, wherein, The angle adjusting assembly three comprises two adjusting screws three, the adjusting screws three are rotationally arranged at the rear side of the corresponding fixed side plate through the upper and lower two ear seats two, the lower ends of the two adjusting screws three are connected through the chain wheel set three, the adjusting screws three are threadedly connected with adjusting sliding blocks three, the two adjusting sliding blocks three are rotationally arranged with a transmission shaft two, and two belt pulleys in a belt pulley set are fixedly arranged at the left and right ends of the transmission shaft two.

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