Conveyor correction structure, correction method and spiral freezer

Abstract

The application provides a conveying belt correction structure, a correction method and a spiral quick freezer, which comprises a conveying belt, a transmission component, a tension adjusting component, a tension sensor and a rotating component. The conveying belt is spirally arranged around a main shell to form multiple spiral sections at different heights. The transmission component makes the conveying belt circulate through multiple transmission wheels around the conveying belt except the spiral part. The tension adjusting component is used to adjust the distance between the transmission wheels to change the tension of the conveying belt. The tension sensor is arranged on the conveying belt to detect the tension signal of the conveying belt. The rotating component is used to drive the transmission wheels to rotate forward or reversely. The tension adjusting component, the rotating component, the push rod part and the limiting part are arranged, and the belt turning sensor and the displacement sensor are arranged, so that the situation of the conveying belt being stuck or turned can be detected. The tension of the conveying belt is adjusted, and the conveying belt is reversely rotated and pushed back by the push rod part, so that the conveying belt is returned to the original position and can work normally.

Description

Technical Field

[0001] This invention relates to the field of spiral quick-freezing machine technology, specifically to a conveyor belt correction structure, correction method, and spiral quick-freezing machine. Background Technology

[0002] Existing quick-freezing machines typically use conveyor belt systems to transport materials during operation. However, these conveyor belts are prone to tipping and jamming during prolonged high-speed operation. To prevent this, current technologies generally employ physical methods to enhance conveyor belt stability, such as adding guide wheels or using more wear-resistant materials. However, these techniques often only provide temporary relief and do not address the root cause of the tipping and jamming issues. Furthermore, existing technologies lack real-time monitoring and automatic adjustment mechanisms for the conveyor belt's operating status. When a conveyor belt malfunctions, it often requires shutdown and manual adjustment, significantly impacting production efficiency. Summary of the Invention

[0003] In order to solve the technical problem that manual adjustment is required for the spiral conveyor belt of the quick-freezing machine in the prior art, the present invention proposes a conveyor belt correction structure, a correction method, and a spiral quick-freezing machine.

[0004] The technical solution adopted in this invention is:

[0005] This invention proposes a conveyor belt correction structure, comprising: a conveyor belt, the inner side of which is spirally arranged around the main housing, forming multiple spiral segments at different heights; a transmission component, which uses multiple transmission wheels to circulate the conveyor belt around the spiral portion of the conveyor belt; and further comprising:

[0006] The limiting part is located directly above each spiral segment of the conveyor belt and is equipped with a belt-turning sensor that senses the conveyor belt turning over.

[0007] The push rod section connects to each of the limiting sections and is used to drive the limiting sections down to reset the flipped conveyor belt.

[0008] Specifically, the conveyor belt correction structure also includes:

[0009] A tension adjustment component is used to adjust the spacing between some of the drive wheels to change the tension of the conveyor belt;

[0010] A tension sensor is installed on the conveyor belt to detect the tension signal of the conveyor belt.

[0011] A rotating component is used to drive the main housing and part of the transmission wheel to rotate forward or in reverse.

[0012] The conveyor belt correction structure also includes: displacement sensors that detect the conveying speed of each spiral segment, corresponding to each spiral segment.

[0013] Furthermore, mounting posts are provided on the outer side of the spiral section of the conveyor belt, and multiple displacement sensors are set at different heights on the mounting posts corresponding to each spiral segment.

[0014] The transmission components include:

[0015] The wheel frame, located on one side of the spiral section of the conveyor belt, is used to mount the drive wheels;

[0016] An upper drive wheel and a lower drive wheel are provided. The upper drive wheel is mounted on the upper part of the wheel frame. The conveyor belt extending from the top of the spiral section of the conveyor belt passes around the upper drive wheel. The lower drive wheel is mounted on the lower part of the wheel frame. The conveyor belt extending from the bottom of the spiral section of the conveyor belt passes around the lower drive wheel.

[0017] A combined drive wheel is mounted on the wheel frame and located between the upper drive wheel and the lower drive wheel. The position of some of the drive wheels is adjustable and it is wound around the conveyor belt between the upper drive wheel and the lower drive wheel.

[0018] Furthermore, the combined transmission wheel includes: a first transmission wheel, a second transmission wheel, and a third transmission wheel. The first transmission wheel and the second transmission wheel are spaced apart. The third transmission wheel is located below the first transmission wheel and the second transmission wheel. The conveyor belt passes around the upper transmission wheel, then passes around the second transmission wheel, the third transmission wheel, and the first transmission wheel in sequence, and finally passes around the lower transmission wheel. The tension adjustment component adjusts the height of the shaft of the third transmission wheel.

[0019] The tension adjustment component includes: a lifting motor mounted on the wheel frame, a threaded shaft driven to rotate by the lifting motor, a lifting component threadedly connected to the threaded shaft, and a third transmission wheel connected to the lifting component.

[0020] The conveyor belt correction structure further includes: a support frame disposed on the outside of the spiral portion of the conveyor belt, the mounting column being the upright of the support frame, and the push rod being mounted on the support frame.

[0021] Preferably, the tape flipping sensor is a pressure sensor.

[0022] The present invention also proposes a spiral quick-freezing machine, including the above-mentioned conveyor belt correction structure.

[0023] The present invention also proposes a conveyor belt alignment method, using the above-mentioned conveyor belt alignment structure, comprising the following steps:

[0024] Detect the conveyor belt status;

[0025] When the belt flipping sensor detects that the spiral section of the conveyor belt is flipping, the rotating component is controlled to stop, the tension adjustment component is controlled to adjust the spacing between some of the transmission wheels to increase the belt looseness, the push rod is controlled to drive the limiting part to press down to reset the flipped conveyor belt, and the tension adjustment component is controlled to reset some of the transmission wheels.

[0026] Including the following steps:

[0027] When the displacement sensor detects an abnormal conveying speed in the spiral section of the conveyor belt and the tension sensor detects an abnormal tension value, the rotating component is controlled to stop, the tension adjustment component is controlled to adjust the spacing between some of the transmission wheels to increase the looseness of the conveyor belt, the rotating component is controlled to reverse for a preset time to reset the conveyor belt, and then the tension adjustment component is controlled to reset some of the transmission wheels.

[0028] Compared with the prior art, the present invention, by setting up a tension adjustment component, a rotating component, a push rod part, and a limiting part, and by setting up a belt flipping sensor and a displacement sensor, can detect when the conveyor belt jams or flips. When the tension of the conveyor belt is adjusted, and the conveyor belt is returned to its original position by reversing the direction of rotation and pushing back by the push rod part, the conveyor belt can be restored to normal operation. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a simplified structural diagram of an embodiment of the present invention;

[0031] Figure 2 This is a structural diagram of an embodiment of the present invention;

[0032] Figure 3 This is a control flowchart of the cartridge in an embodiment of the present invention;

[0033] Figure 4 This is a control flowchart for the tape flipping process in an embodiment of the present invention;

[0034] 1. Conveyor belt; 11. Spiral section;

[0035] 21. Upper drive wheel; 22. Lower drive wheel; 23. First drive wheel; 24. Second drive wheel; 25. Third drive wheel; 26. Wheel frame;

[0036] 3. Tension adjustment components;

[0037] 41. Tension sensor; 42. Belt flipping sensor; 43. Displacement sensor;

[0038] 51. Push rod; 52. Limiting part; 53. Push rod motor;

[0039] 6. Supporting frame; 61. Columns;

[0040] 7. Rotating parts. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0043] In the operation of spiral quick-freezing machines, a conveyor belt system (track system) is typically used to transport materials. During prolonged high-speed operation, the spiral portion of the conveyor belt is prone to problems such as belt overturning and jamming due to its spiral configuration. To prevent this, existing technologies generally employ physical methods to enhance the stability of the conveyor belt, such as adding guide wheels or using more wear-resistant materials. However, these technical measures often only temporarily alleviate the problem and do not fundamentally solve the root cause of conveyor belt overturning and jamming. Furthermore, existing technologies lack real-time monitoring and automatic adjustment mechanisms for the conveyor belt's operating status. When a conveyor belt malfunctions, it often requires stopping the machine and manual adjustment, which significantly impacts production efficiency.

[0044] To address this, the present invention proposes a conveyor belt correction structure. Specifically, the conveyor belt 1 can be the conveyor belt 1 of a spiral quick-freezing machine, or other spiral-shaped transmission conveyor belt 1 (specifically, a conveyor track). The conveyor belt correction structure includes: a conveyor belt 1, a transmission component, a limiting part 52, and a push rod part. The inner side of the conveyor belt 1 surrounds the vertically arranged main housing of the quick-freezing machine and is spirally arranged on the annular outer wall of the main housing, rotating with the main housing (the specific connection method to the main housing has been disclosed in existing spiral quick-freezing machines and will not be elaborated further), forming multiple spiral segments 11 located at different heights. Each spiral segment 11 is connected sequentially from bottom to top. The transmission component is located on one side of the spiral part of the conveyor belt 1. Multiple transmission wheels are connected to the conveyor belt 1 outside the spiral part, so that the conveyor belt 1 can form a closed loop for normal cyclic transmission. The limiting part 52 is located directly above each spiral segment 11, and the limiting part 52 is provided with a belt flipping sensor 42 on the side facing its corresponding spiral segment 11. When the spiral segment 11 flips upward during transmission, the belt flipping sensor 42 can send a sensing signal. The push rod part is connected to each limiting part 52 at the same time, which is used to drive the limiting part 52 to press down and reset the flipped conveyor belt 1.

[0045] The actual condition of the conveyor belt 1 is determined by sensing whether the conveyor belt 1 is flipped by a flipping sensor 42 installed above each spiral segment, and the limit part is pressed down by the push rod part so that the spiral segment that has flipped can return to its original position.

[0046] In a specific embodiment, the belt flipping sensor 42 can be a pressure sensor. The pressure sensor is simple and reliable. Whenever any layer of the spiral segment 11 of the spiral part of the conveyor belt 1 flips, the pressure generated by the flipping of the conveyor belt 1 can be sensed by the pressure sensor, and a pressure signal can be sent out. This allows the correct determination of whether it is necessary to control the various components to adjust and correct the conveyor belt 1 so that the conveyor belt returns to its original position.

[0047] In a specific embodiment, the conveyor belt correction structure further includes: a tension adjustment component 3 and a rotating component 7. The tension adjustment component 3 is connected to some of the transmission wheels of the transmission component (movable connection, which does not affect the rotation of the transmission wheels). By adjusting the spacing between some of the transmission wheels, the tension of the conveyor belt 1 can be changed. The rotating component 7 is rotatably connected to the shaft of one of the transmission wheels in the transmission component, and is also rotatably connected to the main housing. It can drive the transmission wheel to rotate forward or backward, and simultaneously drive the main housing to rotate forward or backward (specifically through a gear structure, that is, through a motor to drive the transmission wheel and the main housing to rotate simultaneously).

[0048] By setting up a tension adjustment component 3 and a rotating component, the present invention can adjust the tension of the conveyor belt 1 and reverse it to return the conveyor belt 1 to its original position when the conveyor belt 1 jams or flips, so that the conveyor belt 1 can work normally.

[0049] In a specific embodiment, the conveyor belt correction structure further includes: multiple displacement sensors 43, the number of which corresponds one-to-one with the spiral segments 11, and can detect the conveying speed of each spiral segment 11.

[0050] By setting displacement sensor 43, the conveying speed of each spiral section 11 can be detected separately, and the actual situation of the conveyor belt can be accurately determined in conjunction with other sensors.

[0051] In a specific embodiment, a mounting post is provided on the outer side of the spiral section of the conveyor belt 1, and multiple displacement sensors 43 are set at different heights of the mounting post corresponding to each spiral segment 11.

[0052] By setting mounting posts to install each displacement sensor 43, the fixed position of the displacement sensor 43 is stabilized, and the displacement parameters of each spiral segment 11 can be accurately detected.

[0053] In a specific embodiment, the conveyor belt correction structure further includes a tension sensor 41 disposed on the conveyor belt 1 to detect the tension signal of the conveyor belt 1.

[0054] The tension sensor 41 can detect the instantaneous tension fluctuations caused by abnormalities when the conveyor belt jams or flips, and can be combined with other sensors to determine the jamming or flipping situation of the conveyor belt.

[0055] In a specific embodiment, the transmission component includes: a wheel frame 26, an upper transmission wheel 21, and a lower transmission wheel 22, as well as a combined transmission wheel. The wheel frame 26 is specifically located on one side of the spiral portion of the conveyor belt 1 (on one side of the driving component, since the conveyor belt 1 spirally wraps around the driving component). The wheel frame 26 has multiple transmission wheel mounting positions, where the shafts of the transmission wheels can be mounted, allowing the transmission wheels to rotate along their shafts at the mounting positions. The upper transmission wheel 21 is mounted on the upper part of the wheel frame 26, flush with the upper part of the spiral portion of the conveyor belt 1, for transmission... The conveyor belt 1, which is led out from the uppermost spiral segment 11 of the spiral section 1, is laterally led out and wound around the upper drive wheel 21. The lower drive wheel 22 is installed at the lower part of the wheel frame 26 and is flush with the lower part of the spiral section of the conveyor belt 1. The conveyor belt 1, which is led out from the lowermost spiral segment 11 of the spiral section of the conveyor belt 1, is laterally led out and wound around the lower drive wheel 22. The combined drive wheel includes multiple drive wheels, which are installed on the wheel frame 26 and located between the upper drive wheel 21 and the lower drive wheel 22. The position of some of the drive wheels is adjustable and they are wound around the conveyor belt 1 that passes between the upper drive wheel 21 and the drive wheel.

[0056] By setting up transmission components, the conveyor belt 1 can still bypass the transmission components to form a cycle after passing through the spiral. At the same time, a combined transmission wheel located between the upper and lower rollers is set up to facilitate the adjustment of the wheel spacing without affecting the normal cycle transmission of the conveyor belt 1.

[0057] In a specific embodiment, the combined transmission wheel includes a first transmission wheel 23, a second transmission wheel 24, and a third transmission wheel 25. The first transmission wheel 23 and the second transmission wheel 24 are positioned at intervals, and the third transmission wheel 25 is vertically movable. The third transmission wheel 25 is located below the first transmission wheel 23 and the second transmission wheel 24. The conveyor belt 1 passes over the upper transmission wheel 21 and then sequentially passes over the second transmission wheel 24, the third transmission wheel 25, and the first transmission wheel 23. Specifically, the conveyor belt 1 first passes over the top of the second transmission wheel 24, then passes over the left side of the second transmission wheel 24 and extends downwards, and then passes over the third transmission wheel 25 in a U-shape. Starting from the right side of the first drive wheel 23, then passing over the top and left side of the first drive wheel 23 and extending downward to the lower drive wheel 22, the tension adjustment component 3 is installed on the wheel frame 26, which can adjust the height of the shaft of the third drive wheel 25, so that the relative height between the third drive wheel 25 and the first and second drive wheels 24 can be changed. Since the conveyor belt 1 also needs to pass around the third drive wheel 25 when passing around the first and second drive wheels 24, this arrangement of combined drive wheels, and due to the limitation of the first and second drive wheels 24, the up and down movement of the third drive wheel 25 will not affect the normal circulation of the conveyor belt.

[0058] In a specific embodiment, the tension adjustment component 3 includes: a lifting motor mounted on the wheel frame 26, a threaded shaft driven to rotate by the lifting motor, a lifting member threadedly connected to the threaded shaft, and a third transmission wheel 25 connected to the lifting member. Specifically, the threaded shaft is vertically positioned, and the lifting member has a horizontal shaft hole and a vertical threaded hole. When the lifting motor rotates forward, the lifting member drives the third transmission wheel 25 to move upward along the threaded shaft; when the lifting motor rotates in reverse, the lifting member drives the third transmission wheel 25 to move downward along the threaded shaft.

[0059] The tension adjustment component 3 has a simple and reliable structure and is driven by a screw. Once it is raised or lowered to the correct position, it is stable and will not shift, which would cause the position of the third transmission wheel 25 to change and affect the transmission of the conveyor belt 1.

[0060] In a specific embodiment, the conveyor belt correction structure also includes a support frame 6 disposed on the outside of the spiral part of the conveyor belt 1. The support frame 6 has multiple columns 61, which are connected by a transverse connecting rod to form a frame. The mounting column for the displacement sensor 43 is one of the columns 61, and the push rod is also mounted on one of the columns 61 on the support frame 6 to facilitate the push rod to move up and down.

[0061] Specifically, the push rod part includes a push rod motor 53 and a vertically arranged push rod 51. The push rod 51 is located on the side of the spiral section of the conveyor belt 1, specifically mounted on the column of the support frame 6. One side of the column is provided with a locking position that restricts the lateral movement of the push rod, so that the push rod 51 can only move vertically up and down. A limiting part 52 is laterally connected to the side of the push rod 51 and extends into the gap of the spiral section of the conveyor belt 1, that is, each limiting part 52 is located directly above each spiral segment 11 of the conveyor belt 1. The push rod motor 53 pushes the push rod 51 in the same way as the tension adjustment component 3, which is also provided with a screw driven by the push rod motor 53. The end of the push rod can be fixedly connected to a threaded fitting, such as a nut, that mates with the screw, so that the push rod motor can rotate the screw to drive the push rod.

[0062] In other embodiments, a cylinder can be directly used to replace the push rod motor in the above embodiments, and the extension and retraction can be achieved directly through the extension rod of the cylinder, resulting in a simpler structure.

[0063] The present invention also proposes a spiral quick-freezing machine, including the above-mentioned conveyor belt correction structure.

[0064] By employing the aforementioned conveyor belt correction structure, the spiral quick-freezing machine can quickly correct any abnormalities that occur on the conveyor belt. For example, if the conveyor belt flips or jams, the tension adjustment component can be used to increase the looseness of the conveyor belt, making it easier to correct the conveyor belt.

[0065] like Figure 3 , 4 As shown, the present invention also proposes a conveyor belt correction method, using the above-mentioned conveyor belt correction structure, specifically including the following steps:

[0066] Detect the conveyor belt status;

[0067] When the belt flipping sensor detects that the spiral section of the conveyor belt is flipping, it means that the conveyor belt has flipped. The rotating component is controlled to stop, the tension adjustment component is controlled to adjust the distance between the transmission wheels to increase the belt looseness, the push rod is controlled to drive the limit part to press down to reset the flipped conveyor belt, and finally the tension adjustment component is controlled to reset some of the transmission wheels.

[0068] When tape flips, manual flipping is not required. The flipping sensor and push rod automatically flip the tape, causing the spiral section that flipped to return to its original position.

[0069] If the abnormality reappears after the tension adjustment component resets some of the transmission wheels, the machine will stop immediately and an alarm will be triggered.

[0070] In a specific embodiment, if the displacement sensor detects that the conveying speed of the spiral section of the conveyor belt is abnormal, and the tension sensor detects an abnormal tension value (exceeding the tension value detected under normal circumstances, or the tension value of a previous period of time);

[0071] The rotating component is controlled to stop, the tension adjustment component is controlled to adjust the spacing between some of the transmission wheels to increase the looseness of the conveyor belt, the rotating component is then controlled to reverse for a preset time to reset the conveyor belt, and finally the tension adjustment component is controlled to reset some of the transmission wheels.

[0072] When the conveyor belt jams, it stops conveying the belt directly, loosens the belt by adjusting the tension, and then reverses the rotation to make the jammed belt return to its original position and return to normal. Then, the tension adjustment component is used to restore the belt tension so that it can resume conveying.

[0073] Specifically, the abnormal conveyor speed is determined by detecting whether the conveyor speed of the spiral section of the conveyor belt exceeds the original preset transmission speed range. If the conveyor belt exhibits abnormal transmission speed and the tension value of the conveyor belt also becomes abnormal, it is determined that the conveyor belt is jammed.

[0074] It should be noted that the terminology used above is for describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0075] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0076] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0079] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A conveyor belt correction structure, comprising: The conveyor belt is spirally arranged around the main unit housing, forming multiple spiral segments at different heights. The transmission component, which circulates the conveyor belt by means of multiple transmission wheels wound around the conveyor belt excluding the spiral portion, is characterized by further comprising: The limiting part is located directly above each spiral segment of the conveyor belt and is equipped with a belt-turning sensor that senses the belt turning over. The belt-turning sensor is a pressure sensor. The push rod part connects to each of the limiting parts and is used to drive the limiting parts to press down, so that the flipped conveyor belt is reset. A tension adjustment component is used to adjust the spacing between some of the drive wheels to change the tension of the conveyor belt; A tension sensor is installed on the conveyor belt to detect the tension signal of the conveyor belt. A rotating component is used to drive the main housing and part of the transmission wheels to rotate forward or in reverse. Conveyor belt calibration methods include: Detect the conveyor belt status; When the belt flipping sensor detects that the spiral section of the conveyor belt is flipping, the rotating component is controlled to stop, the tension adjustment component is controlled to adjust the spacing between some of the transmission wheels to increase the belt looseness, the push rod is controlled to drive the limiting part to press down to reset the flipped conveyor belt, and the tension adjustment component is controlled to reset some of the transmission wheels.

2. The conveyor belt correction structure as described in claim 1, characterized in that, Also includes: Displacement sensors are installed for each spiral segment to detect the conveying speed of each spiral segment.

3. The conveyor belt correction structure as described in claim 2, characterized in that, The outer side of the spiral section of the conveyor belt is provided with a mounting post, and multiple displacement sensors are set at different heights of the mounting post corresponding to each spiral segment.

4. The conveyor belt correction structure as described in claim 1, characterized in that, The transmission component includes: The wheel frame, located on one side of the spiral section of the conveyor belt, is used to mount the drive wheels; An upper drive wheel and a lower drive wheel are provided. The upper drive wheel is mounted on the upper part of the wheel frame. The conveyor belt extending from the top of the spiral section of the conveyor belt passes around the upper drive wheel. The lower drive wheel is mounted on the lower part of the wheel frame. The conveyor belt extending from the bottom of the spiral section of the conveyor belt passes around the lower drive wheel. A combined drive wheel is mounted on the wheel frame and located between the upper drive wheel and the lower drive wheel. The position of some of the drive wheels is adjustable and it is wound around the conveyor belt between the upper drive wheel and the lower drive wheel.

5. The conveyor belt correction structure as described in claim 4, characterized in that, The combined transmission wheel includes a first transmission wheel, a second transmission wheel, and a third transmission wheel. The first transmission wheel and the second transmission wheel are spaced apart. The third transmission wheel is located below the first transmission wheel and the second transmission wheel. The conveyor belt passes around the upper transmission wheel, then passes around the second transmission wheel, the third transmission wheel, and the first transmission wheel in sequence, and finally passes around the lower transmission wheel. The tension adjustment component adjusts the height of the shaft of the third transmission wheel.

6. The conveyor belt correction structure as described in claim 5, characterized in that, The tension adjustment component includes: a lifting motor mounted on the wheel frame, a threaded shaft driven to rotate by the lifting motor, a lifting component threadedly connected to the threaded shaft, and a third transmission wheel connected to the lifting component.

7. The conveyor belt correction structure as described in claim 3, characterized in that, Also includes: The support frame is located on the outside of the spiral section of the conveyor belt, the mounting column is the upright column of the support frame, and the push rod is mounted on the support frame.

8. A spiral quick-freezing machine, characterized in that, Includes the conveyor belt correction structure as described in any one of claims 1 to 7.

9. A conveyor belt calibration method, characterized in that, Using the conveyor belt correction structure as described in any one of claims 1 to 7, the steps include: When the displacement sensor detects an abnormal conveying speed in the spiral section of the conveyor belt and the tension sensor detects an abnormal tension value, the rotating component is controlled to stop, the tension adjustment component is controlled to adjust the spacing between some of the transmission wheels to increase the looseness of the conveyor belt, the rotating component is controlled to reverse for a preset time to reset the conveyor belt, and then the tension adjustment component is controlled to reset some of the transmission wheels.

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