Anti-blanking deviation rectifying device

Abstract

The utility model relates to the technical field of blanking deviation rectification, and discloses an anti-blanking deviation rectification device which comprises a main frame, installation adjusting mechanisms, a rotary deviation rectification mechanism, an anti-blanking mechanism and a real-time sensing mechanism, the installation adjusting mechanisms are arranged on the two sides of the main frame, the rotary deviation rectification mechanism is rotationally arranged at the top end of the main frame, and the anti-blanking mechanism is arranged on the main frame. And the anti-falling mechanism is arranged on the rotary deviation rectifying mechanism. By means of the design of the telescopic frame, the belt conveyor can flexibly adapt to belt racks of different sizes; the mounting holes are matched with the adjusting holes, so that the height of the device is adjustable, and the device adapts to various rack specifications; the detection driving wheel assembly monitors the position of the belt in real time, the angle of the rotating frame is adjusted through the telescopic hydraulic cylinder, belt deviation correction is achieved, and belt deviation is effectively coped with; in case of serious deviation, the anti-roller is triggered to slide, and the deviation side bracket is fixed; a photoelectric sensor detects approaching of a detection driving wheel, a gathering hydraulic device is started, the belt groove angle is adjusted, and materials are prevented from scattering; and belt deviation is accurately controlled, and materials are prevented from being thrown off.

Description

Technical Field

[0001] This utility model relates to the field of material drop correction technology, specifically a material drop correction device. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are a type of continuous bulk material transport equipment widely used in many industries such as mining, metallurgy, coal, chemical, and ports. Their working principle relies on drive rollers to drive the conveyor belt, thereby achieving continuous material transport. In actual production processes, the operational stability and reliability of belt conveyors play a crucial role in production efficiency and safety.

[0003] However, belt misalignment is a common problem during the operation of belt conveyors due to various factors, including unstable installation foundations, inflexible operating parts, load variations, and impact from falling materials. Belt misalignment can lead to a series of serious problems. On the one hand, it can cause material spillage, wasting resources and polluting the surrounding environment. On the other hand, it can accelerate wear on the belt edges, thus shortening the belt's service life. More seriously, when the belt misalignment is significant, it can cause accidents such as belt tearing and burning, leading to the shutdown of the conveyor line, seriously affecting safe production, and even potentially causing significant economic losses.

[0004] In existing technologies, when some belts are too loose or run off-track too severely, the existing belt correction devices often cannot correct the belts back to their normal positions in a timely and effective manner, resulting in continuous material spillage. This not only affects the normal operation of the belt conveyor but also requires manual labor to handle the spilled material, increasing production costs and labor intensity. Therefore, a material spillage prevention and belt correction device is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides an anti-dropping and correction device to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing material slippage and correcting deviation, comprising:

[0009] The system includes a main frame, an installation and adjustment mechanism, a rotation correction mechanism, an anti-falling material mechanism, and a real-time sensing mechanism. The installation and adjustment mechanism is located on both sides of the main frame, the rotation correction mechanism is rotatably located at the top of the main frame, the anti-falling material mechanism is located above the rotation correction mechanism, and the real-time sensing mechanism is located on the side wall of the main frame.

[0010] Preferably, the installation and adjustment mechanism includes a mounting plate, adjustment holes, and a telescopic frame. One end of the telescopic frame is slidably disposed on the side walls at both ends of the main frame. The mounting plate is disposed on the other end of the telescopic frame. The other end of the telescopic frame has mounting holes. The adjustment holes are arranged in an array on both sides of the mounting plate. The mounting plate and the telescopic frame are connected by bolts passing through the mounting holes and adjustment holes. Four threaded sleeves are fixedly installed in an array on the outer side of the main frame. Fastening bolts are slidably installed on the inner wall of the threaded sleeves.

[0011] This device features a modular dual mounting plate and telescopic frame design, enabling ±300mm lateral adjustment and 50mm stepless height adjustment. It adapts to deformable frames and is compatible with multiple belt specifications. It innovatively integrates an electro-hydraulic servo correction system, dual buffer protection, and a dynamic groove angle compensation system, constructing a closed-loop control system of monitoring, response, buffering, and reset. This effectively solves three major industry problems: belt misalignment, impact damage, and material spillage, significantly improving equipment adaptability and operational reliability.

[0012] Preferably, the rotation correction mechanism includes a rotating frame, a rotating shaft assembly, a rotating bracket, and a telescopic hydraulic cylinder. The rotating shaft assembly is rotatably mounted on the top of the main frame, the rotating frame is fixedly mounted on the top of the rotating shaft assembly, and the rotating brackets are rotatably mounted in pairs on the side wall of the rotating frame. One end of the telescopic hydraulic cylinder is rotatably mounted on the upper part of the main frame, and the other end of the telescopic hydraulic cylinder is rotatably mounted on the side wall of the main frame. A pair of support seats are fixedly mounted on the rotating bracket, and a first roller is rotatably mounted on the top of the two support seats. A pair of second rollers are rotatably mounted on the top of the rotating frame.

[0013] The telescopic frame and array adjustment hole structure can quickly match different belt conveyor frame sizes, and the coplanar idler design ensures smooth operation; the hydraulic fine adjustment for slight deviation, the spring buffer for medium impact, and the hydraulic linkage anti-roller mechanism for automatic convergence in case of severe deviation prevent material spillage and avoid equipment damage; the photoelectric sensor and buffer spring work together to achieve automatic reset after correction, forming a closed loop of detection-response-recovery, which significantly improves the safety of belt conveyor and the service life of equipment.

[0014] Preferably, the anti-dropping mechanism includes a sliding groove, a sliding rod, a sliding seat, an anti-roller, a transmission sleeve, a limiting hook, a limiting spring, a limiting rod, and a gathering hydraulic device. The sliding groove is opened at the upper inner end of the rotating bracket. The sliding rod is fixedly installed on the inner wall of the sliding groove. The sliding seat is slidably installed on the inner wall of the sliding groove. The side wall of the sliding seat is slidably sleeved on the outer wall of the sliding rod. The transmission sleeve is slidably sleeved on the outer wall of the sliding rod. The side wall of the sliding seat is fixedly connected to one end of the side wall of the transmission sleeve. The limiting hook is fixedly installed on the other end of the outer wall of the transmission sleeve. One end of the limiting spring is fixedly installed on the inner wall of the sliding groove. The other end of the limiting spring is fixedly connected to the side wall of the sliding seat. The anti-roller is rotatably installed at the top of the sliding seat. The limiting rods are symmetrically fixed on the rotating frame. The two ends of the gathering hydraulic device are rotatably installed on the side walls of the two rotating brackets, respectively.

[0015] By integrating electro-hydraulic servo correction, dual buffer protection, and dynamic slot angle compensation system, a closed-loop control chain of monitoring-response-buffering-reset is constructed.

[0016] Preferably, the real-time sensing mechanism includes a sensing frame, a buffer spring, a detection and drive wheel assembly, and a photoelectric sensor. The sensing frames are fixedly mounted in pairs on the side wall of the main frame. The detection and drive wheel assembly is rotatably mounted on the side wall of the sensing frame. The photoelectric sensor is fixedly mounted on the side wall of the sensing frame. One end of the buffer spring array is fixedly mounted on the side wall of the sensing frame, and the other end of the buffer spring is fixedly connected to the side wall of the detection and drive wheel assembly.

[0017] The integrated three-level correction system has a primary electro-hydraulic servo correction response of <0.8s, a secondary buffer spring, anti-roller and limit hook to achieve dual impact absorption, and a final photoelectric sensor linkage hydraulic device to dynamically adjust the groove angle.

[0018] Preferably, the drive wheel assembly is connected to the telescopic hydraulic cylinder via a conduit, the fastening bolt is connected to the threaded sleeve via a thread, the length of the second idler roller is shorter than the length of the first idler roller, and the photoelectric sensor is electrically connected to the gathering hydraulic device via a wire.

[0019] The primary electro-hydraulic servo achieves a rapid response of <0.8s through direct connection via conduit. The secondary double buffer structure (buffer spring and limit spring) combined with the design of long and short idler rollers effectively disperses the impact force. The final photoelectric sensor and hydraulic gathering device are electrically linked to form a closed-loop control, realizing dynamic groove angle compensation and automatic reset functions.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a device for preventing material slippage and correcting deviation, which has the following beneficial effects:

[0022] This utility model, through its telescopic frame design, flexibly adapts to belt conveyor frames of different sizes, solving the installation difficulties caused by frame deformation. The cooperation between the mounting holes and adjustment holes allows for height adjustment of the device, accommodating various frame specifications. The detection drive wheel assembly monitors the belt position in real time, and adjusts the rotation frame angle via a telescopic hydraulic cylinder to correct belt deviation, effectively addressing belt offset. In cases of severe deviation, the belt squeezes the detection drive wheel, causing it to rotate on the sensing frame, thereby triggering anti-roller slippage and limit spring buffering. The transmission sleeve and limit hook are linked to fix the support on the deviated side. Simultaneously, a photoelectric sensor detects the proximity of the detection drive wheel, activating the convergence hydraulic device to rotate the support on the opposite side, adjusting the belt groove angle to prevent material spillage. The entire process precisely controls belt deviation, prevents material spillage, and significantly improves the operational stability and material conveying efficiency of the belt conveyor. In summary, this invention solves the problems mentioned in the background technology. Attached Figure Description

[0023] Figure 1 This is a perspective view of the anti-dropping and correction device and the belt position of this utility model;

[0024] Figure 2 This is a perspective view of the anti-dropping and correction device of this utility model;

[0025] Figure 3 This is a front view of the anti-falling material correction device of this utility model;

[0026] Figure 4 This is a top view of the anti-falling material correction device of this utility model;

[0027] Figure 5 This is a right view of the anti-dropping and correction device of this utility model;

[0028] Figure 6 This is a perspective view of the rotation correction mechanism and the anti-dropping mechanism of this utility model.

[0029] Figure 7 For the present utility model Figure 6 Enlarged view of a portion of region A in the middle;

[0030] Figure 8 This is a partial three-dimensional sectional view of the rotation correction mechanism and the anti-dropping mechanism of this utility model;

[0031] Figure 9 For the present utility model Figure 8 Enlarged view of a portion of region B in the middle.

[0032] In the diagram: 1. Main frame; 2. Mounting and adjusting mechanism; 3. Rotation correction mechanism; 4. Anti-dropping mechanism; 5. Real-time sensing mechanism; 6. Belt; 201. Mounting plate; 202. Adjusting hole; 203. Telescopic frame; 204. Mounting hole; 205. Threaded sleeve; 206. Fastening bolt; 301. Rotating frame; 302. Rotating shaft assembly; 303. Rotating bracket; 304. Telescopic hydraulic cylinder; 305. Support seat; 306. First idler roller; 307. Second idler roller; 401. Sliding groove; 402. Sliding rod; 403. Sliding seat; 404. Anti-roller; 405. Transmission sleeve; 406. Limit hook; 407. Limit spring; 408. Limit rod; 409. Gathering hydraulic device; 501. Sensing frame; 502. Buffer spring; 503. Detection and drive wheel assembly; 504. Photoelectric sensor. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model provides a technical solution: a device for preventing material slippage and correcting deviation. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 ,include:

[0035] The main frame 1, the installation and adjustment mechanism 2, the rotation correction mechanism 3, the anti-dropping mechanism 4, and the real-time sensing mechanism 5 are provided. The installation and adjustment mechanism 2 is located on both sides of the main frame 1, the rotation correction mechanism 3 is rotatably located at the top of the main frame 1, the anti-dropping mechanism 4 is located on the rotation correction mechanism 3, and the real-time sensing mechanism 5 is located on the side wall of the main frame 1.

[0036] Please refer to the figure. The installation and adjustment mechanism 2 includes a mounting plate 201, an adjustment hole 202, and a telescopic frame 203. One end of the telescopic frame 203 is slidably disposed on the side walls at both ends of the main frame 1. The mounting plate 201 is disposed on the other end of the telescopic frame 203. The other end of the telescopic frame 203 has a mounting hole 204. The adjustment holes 202 are arranged in an array on both sides of the outside of the mounting plate 201. The mounting plate 201 and the telescopic frame 203 are connected by bolts passing through the mounting hole 204 and the adjustment hole 202. Four threaded sleeves 205 are fixedly installed in an array on one side of the outside of the main frame 1. Fastening bolts 206 are slidably installed on the inner wall of the threaded sleeves 205.

[0037] This device, through its modular dual mounting plate 201 and telescopic frame 203 design, achieves ±300mm lateral adjustment and 50mm stepless height adjustment, adaptively deformable frame, and compatibility with multiple belt specifications 6; it innovatively integrates electro-hydraulic servo correction, dual buffer protection, and dynamic groove angle compensation system, constructing a closed-loop control of monitoring-response-buffering-reset, effectively solving three major industry problems of belt 6 misalignment, impact damage, and material spillage, significantly improving equipment adaptability and operational reliability.

[0038] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The rotation correction mechanism 3 includes a rotating frame 301, a rotating shaft assembly 302, a rotating bracket 303, and a telescopic hydraulic cylinder 304. The rotating shaft assembly 302 is rotatably mounted on the top of the main frame 1, the rotating frame 301 is fixedly mounted on the top of the rotating shaft assembly 302, the rotating brackets 303 are rotatably mounted in pairs on the side wall of the rotating frame 301, one end of the telescopic hydraulic cylinder 304 is rotatably mounted on the upper part of the main frame 1, and the other end of the telescopic hydraulic cylinder 304 is rotatably mounted on the side wall of the main frame 1. A pair of support seats 305 are fixedly mounted on the rotating brackets 303, and a first roller 306 is rotatably mounted on the top of the two support seats 305. A pair of second rollers 307 are rotatably mounted on the top of the rotating frame 301.

[0039] The telescopic frame 203 and array adjustment hole 202 structure can quickly match different belt conveyor frame sizes, and the coplanar idler design ensures smooth operation; the hydraulic fine adjustment for slight deviation, the spring buffer for medium impact, and the automatic convergence hydraulic device 409 linked to the anti-roller 404 mechanism in case of severe deviation prevent material spillage and avoid equipment damage; the photoelectric sensor 504 and the buffer spring 502 work together to achieve automatic reset after correction, forming a detection-response-recovery closed loop, which significantly improves the safety of belt 6 transportation and equipment life.

[0040] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 9 The anti-dropping mechanism 4 includes a sliding groove 401, a sliding rod 402, a sliding seat 403, an anti-roller 404, a transmission sleeve 405, a limiting hook 406, a limiting spring 407, a limiting rod 408, and a gathering hydraulic device 409. The sliding groove 401 is located inside the upper part of the rotating bracket 303. The sliding rod 402 is fixedly installed on the inner wall of the sliding groove 401. The sliding seat 403 is slidably installed on the inner wall of the sliding groove 401. The side wall of the sliding seat 403 is slidably sleeved on the outer wall of the sliding rod 402. The transmission sleeve 405 is slidably sleeved on the inner wall of the rotating bracket 303. The outer wall of the sliding rod 402, the side wall of the sliding seat 403, and one end of the side wall of the transmission sleeve 405 are fixedly connected. The limiting hook 406 is fixedly installed on the outer wall of the other end of the transmission sleeve 405. One end of the limiting spring 407 is fixedly installed on the inner wall of the sliding groove 401, and the other end of the limiting spring 407 is fixedly connected to the side wall of the sliding seat 403. The anti-roller 404 is rotatably installed on the top of the sliding seat 403. The limiting rod 408 is symmetrically fixed on the rotating frame 301. The two ends of the gathering hydraulic device 409 are rotatably installed on the side walls of the two rotating brackets 303 respectively.

[0041] By integrating electro-hydraulic servo correction, dual buffer protection, and dynamic slot angle compensation system, a closed-loop control chain of monitoring-response-buffering-reset is constructed.

[0042] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 The real-time sensing mechanism 5 includes a sensing frame 501, a buffer spring 502, a detection and drive wheel assembly 503, and a photoelectric sensor 504. The sensing frames 501 are fixedly mounted in pairs on the side wall of the main frame 1. The detection and drive wheel assembly 503 is rotatably mounted on the side wall of the sensing frame 501. The photoelectric sensor 504 is fixedly mounted on the side wall of the sensing frame 501. One end of the buffer spring 502 array is fixedly mounted on the side wall of the sensing frame 501, and the other end of the buffer spring 502 is fixedly connected to the side wall of the detection and drive wheel assembly 503.

[0043] The integrated three-level correction system has a primary electro-hydraulic servo correction response of <0.8s, a secondary buffer spring 502, an anti-roller 404 and a limit hook 406 to achieve dual impact absorption, and a final photoelectric sensor-linked hydraulic actuator 409 to dynamically adjust the groove angle.

[0044] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 The drive wheel assembly 503 is connected to the telescopic hydraulic cylinder 304 through a conduit, the fastening bolt 206 is connected to the threaded sleeve 205 through a thread, the length of the second idler roller 307 is less than the length of the first idler roller 306, and the photoelectric sensor 504 is electrically connected to the gathering hydraulic device 409 through a wire.

[0045] The primary electro-hydraulic servo achieves a rapid response of <0.8s through direct connection via conduit. The secondary double buffer structure (buffer spring 502 and limit spring 407) combined with the design of long and short idler rollers effectively disperses the impact force. The final photoelectric sensor and hydraulic gathering device are electrically linked to form a closed-loop control, realizing dynamic groove angle compensation and automatic reset functions.

[0046] This solution involves first fixing the two mounting plates 201 of the device to the crossbeams on both sides of the frame of the belt 6 using bolts. Then, the user controls the telescopic frame 203 to slide and adjust the position of the device on the frame of the belt 6 at both ends of the main frame 1, ensuring that the device is located at the exact center of the frame of the belt 6, and positioning the belt 6 on the first idler 306 and the second idler 307, and in contact with them. The user then fixes the telescopic frame 203 by tightening the fastening bolts 206, thereby achieving the technical effect of adapting to the size of the belt 6 frame.

[0047] The user then installs the main frame 1 relative to the belt 6 frame by means of the mating bolts between the mounting hole 204 and the adjustment hole 202 (the bolts for the bolt connection are not shown in the diagram), thereby adjusting the relative height of the main frame 1 relative to the belt 6 frame and placing the first idler 306 and the second idler 307 on the same plane as the idlers on the commonly used idler frame, thereby achieving the technical effect of adjusting the height of the device.

[0048] When the belt conveyor is working, if the belt 6 deviates from its normal position and shifts to one side, the edge of the belt 6 will push the detection wheel assembly on that side (this is existing technology and will not be described in detail here) to contact and rotate. This will drive the telescopic hydraulic cylinder 304 to extend through the guide tube (not shown in the figure), thereby adjusting the angle of the rotating frame 301 and driving the belt 6 back to its normal position. This will correct the belt 6 and solve the technical problem of belt 6 shifting.

[0049] When belt 6 deviates significantly, it will continue to compress the detection wheel assembly 503, causing it to rotate on the side wall of the sensing frame 501. At this time, the buffer spring 502 will act as a buffer, reducing the impact force between belt 6 and the detection wheel assembly 503, protecting them from damage. Belt 6 will then contact the anti-roller 404, pushing the anti-roller 404 and support seat 305 to slide within the sliding groove 401. At this time, the limit spring 407 will buffer the impact force between the anti-roller 404 and belt 6, thereby causing the transmission sleeve 405 and the limit hook 406 to slide along the sliding rod 402, hooking the limit rod 408. Meanwhile, the detection wheel assembly 503, compressed by belt 6, continues to rotate on the side wall of the sensing frame 501. The photoelectric sensor 504 will detect the... As the drive wheel assembly 503 approaches, it causes the gathering hydraulic device 409 to retract. The limit hook 406 on the rotating bracket 303 on the deviated side has hooked the limit rod 408, and the rotating bracket 303 is fixed. The retraction of the gathering hydraulic device 409 can drive the rotating bracket 303 on the opposite side to rotate to that side, thereby causing the belt 6 and the material to deviate to that side. By increasing the groove angle of the belt 6 on the opposite side, the material is prevented from falling, effectively solving the technical problem of serious belt deviation and material spillage in the prior art. When the belt 6 returns to the normal position, the drive wheel assembly 503 is no longer pushed by the belt 6. Under the elastic force of the buffer spring 502, the drive wheel assembly 503 is pushed back to the initial position. The photoelectric sensor 504 will sense the change in the position of the drive wheel, thereby driving the gathering hydraulic device 409 back to the initial position.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing material slippage and correcting deviation, characterized in that, include: The main frame (1), the installation and adjustment mechanism (2), the rotation correction mechanism (3), the anti-dropping mechanism (4), and the real-time sensing mechanism (5) are provided. The installation and adjustment mechanism (2) is located on both sides of the main frame (1), the rotation correction mechanism (3) is rotatably located at the top of the main frame (1), the anti-dropping mechanism (4) is located on the upper part of the rotation correction mechanism (3), and the real-time sensing mechanism (5) is located on the side wall of the main frame (1).

2. The anti-dropping and deviation correction device according to claim 1, characterized in that: The installation and adjustment mechanism (2) includes a mounting plate (201), an adjustment hole (202), and a telescopic frame (203). One end of the telescopic frame (203) is slidably disposed on the side walls of both ends of the main frame (1). The mounting plate (201) is disposed on the other end of the telescopic frame (203). The other end of the telescopic frame (203) has a mounting hole (204). The adjustment holes (202) are arranged in an array on both sides of the mounting plate (201). The mounting plate (201) and the telescopic frame (203) are connected by bolts passing through the mounting hole (204) and the adjustment hole (202). Threaded sleeves (205) are fixedly installed in an array on one side of the main frame (1). There are four threaded sleeves (205). Fastening bolts (206) are slidably installed on the inner wall of the threaded sleeves (205).

3. The anti-dropping and deviation correction device according to claim 2, characterized in that: The rotation correction mechanism (3) includes a rotating frame (301), a rotating shaft assembly (302), a rotating bracket (303), and a telescopic hydraulic cylinder (304). The rotating shaft assembly (302) is rotatably mounted on the top of the main frame (1), and the rotating frame (301) is fixedly mounted on the top of the rotating shaft assembly (302). The rotating brackets (303) are rotatably mounted in pairs on the side wall of the rotating frame (301). One end of the telescopic hydraulic cylinder (304) is rotatably mounted on the upper part of the main frame (1), and the other end of the telescopic hydraulic cylinder (304) is rotatably mounted on the side wall of the main frame (1). A pair of support seats (305) are fixedly mounted on the rotating brackets (303), and a first idler roller (306) is rotatably mounted on the top of the two support seats (305). A pair of second idler rollers (307) are rotatably mounted on the top of the rotating frame (301).

4. The anti-dropping and deviation correction device according to claim 3, characterized in that: The anti-dropping mechanism (4) includes a sliding groove (401), a sliding rod (402), a sliding seat (403), an anti-roller (404), a transmission sleeve (405), a limiting hook (406), a limiting spring (407), a limiting rod (408), and a gathering hydraulic device (409). The sliding groove (401) is located inside the upper end of the rotating bracket (303). The sliding rod (402) is fixedly mounted on the inner wall of the sliding groove (401). The sliding seat (403) is slidably mounted on the inner wall of the sliding groove (401). The side wall of the sliding seat (403) is slidably sleeved on the outer wall of the sliding rod (402). The transmission sleeve (405) is slidably sleeved on the outer wall of the sliding rod (402). The sliding seat (403) is fixedly connected to the side wall of one end of the transmission sleeve (405) on the outer wall of the sliding rod (402). The limiting hook (406) is fixedly installed on the outer wall of the other end of the transmission sleeve (405). One end of the limiting spring (407) is fixedly installed on the inner wall of the sliding groove (401). The other end of the limiting spring (407) is fixedly connected to the side wall of the sliding seat (403). The anti-roller (404) is rotatably installed on the top of the sliding seat (403). The limiting rod (408) is symmetrically fixed on the rotating frame (301). The two ends of the gathering hydraulic device (409) are respectively rotatably installed on the side walls of the two rotating supports (303).

5. The anti-dropping and correction device according to claim 4, characterized in that: The real-time sensing mechanism (5) includes a sensing frame (501), a buffer spring (502), a detection and drive wheel assembly (503), and a photoelectric sensor (504). The sensing frames (501) are fixedly mounted in pairs on the side wall of the main frame (1). The detection and drive wheel assembly (503) is rotatably mounted on the side wall of the sensing frame (501). The photoelectric sensor (504) is fixedly mounted on the side wall of the sensing frame (501). One end of the buffer spring (502) array is fixedly mounted on the side wall of the sensing frame (501), and the other end of the buffer spring (502) is fixedly connected to the side wall of the detection and drive wheel assembly (503).

6. The anti-dropping and deviation correction device according to claim 5, characterized in that: The drive wheel assembly (503) is connected to the telescopic hydraulic cylinder (304) via a conduit, the fastening bolt (206) is connected to the threaded sleeve (205) via a thread, the length of the second idler roller (307) is less than the length of the first idler roller (306), and the photoelectric sensor (504) is electrically connected to the gathering hydraulic device (409) via a wire.

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