Buffer bed for conveyor belt, conveying system, and conveying control method

Abstract

The present invention discloses a buffer bed for a conveyor belt, a conveying system, and a conveying control method. The buffer bed includes a buffer frame, a buffer strip, and a buffer frame adjustment device. The buffer strip is mounted on the buffer frame, and the buffer frame is mounted on the buffer frame adjustment device. The buffer frame adjustment device is used to drive the buffer frame to move in a first direction or / and a second direction, wherein the first direction is parallel to the conveying direction of the conveyor belt, and the second direction is perpendicular to the conveying direction of the conveyor belt. By providing a buffer frame adjustment device to adjust the position of the buffer frame in the conveying direction or / and perpendicular to the conveying direction, the centering of the material drop point is achieved, ensuring that the buffer bed can receive all the dropped materials and ensuring effective contact between the conveyor belt and the buffer strip, thereby greatly improving the overall buffering effect of the buffer bed, thereby improving the overall buffering effect of the buffer bed under complex working conditions, and greatly improving the adaptability of the buffer bed to complex material flows.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer beds, and in particular to a buffer bed for a conveyor belt, a conveying system, and a conveying control method. Background Art

[0002] The impact bed is primarily used to replace impact rollers, offering excellent overall impact resistance. The surface contact between the impact strip and the conveyor belt effectively prevents damage to the conveyor belt, minimizing material splashing and leakage. It is primarily used to cushion high-drop drop points, unevenly sized drop materials, high-density drop materials, and improve sealing in drop areas.

[0003] like Figures 1 to 3 As shown, conventional buffer beds consist of a buffer frame 1 and buffer strips 2. The buffer strips 2, primarily constructed from a high-quality, highly elastic special rubber layer, effectively absorb the impact of falling materials, significantly reducing the impact on the conveyor belt and effectively improving the stress conditions at the drop point. The buffer strips 2 are made from a smooth, wear-resistant UHMW polyethylene material, reducing friction between the conveyor belt 3 and the buffer strips 2. The steel-structured buffer frame 1 ensures the overall strength of the buffer bed, while also positioning the buffer strips 2 and determining the trough dimensions of the buffer bed.

[0004] like Figure 1 As shown in the figure, under the ideal working condition of the buffer bed, the material flow falls from the drop point to the buffer bed due to the action of gravity. In the first direction F1 (transport direction) along the conveyor belt 3, there is a concentrated drop area 4 with a thickness ranging from 100mm to 400mm depending on the amount of drop. There is a larger scattered drop area 5 in front of the first direction F1, and there is scattered drop in a small area behind the conveyor direction. Under this working condition, the buffer bed is arranged at Figure 1 Positioning the concentrated material drop area 4 slightly below the center of the buffer bed allows the impact of falling materials to be concentrated in the center, maximizing the buffering effect of the entire buffer bed. In the direction perpendicular to the first direction F1, when the distance between the top surface of the buffer bed and the frame surface is too small, the height difference between the buffer strips 2 and the conveyor belt 3 is too small, resulting in severe mutual wear and the risk of tearing the conveyor belt 3. When the distance between the top surface of the buffer bed and the frame surface is too large, the height difference between the buffer strips 2 and the conveyor belt 3 is too large, resulting in poor contact or even no contact between the buffer strips 2 and the conveyor belt 3, and poor buffering effect.

[0005] In order to ensure that the buffer strip 2 and the conveyor belt 3 maintain reasonable and sufficient contact and ensure the buffering effect, the height difference between the buffer strip 2 and the conveyor belt 3 needs to be maintained between 3 and 10 mm. However, in actual applications, due to various factors such as processing and assembly accuracy, as well as the accumulation of various errors and the wear of the buffer strip itself, the height difference between the buffer strip 2 and the conveyor belt 3 is often difficult to ensure. When the upper surface of the buffer strip is lower than the top surface of the roller, the buffer bed's buffering effect will be greatly reduced. In addition, the material flow of the sand and gravel production line is very complex. The actual drop point of the material flow from the drop port 6 and the simulated drop point often have a large error. Different drop sizes, speeds, and drop volumes make the actual drop area and the assumed drop area far apart. In order to ensure that the buffer bed can fully receive the material flow, the buffer bed length is often taken to a large value, which is costly. Summary of the Invention

[0006] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a buffer bed for a conveyor belt, a conveying system, and a conveying control method to solve the problem in the prior art that the height difference between the buffer bar and the conveyor belt is difficult to maintain within a reasonable range.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] The present invention provides a buffer bed for a conveyor belt, comprising a buffer frame, a buffer strip and a buffer frame adjusting device, wherein the buffer strip is mounted on the buffer frame, the buffer frame is mounted on the buffer frame adjusting device, and the buffer frame adjusting device is used to drive the buffer frame to move in a first direction or / and a second direction, wherein the first direction is parallel to the conveying direction of the conveyor belt, and the second direction is perpendicular to the conveying direction of the conveyor belt.

[0009] Furthermore, the buffer rack adjustment device includes a support base, a first driving mechanism and a sliding bracket, the first driving mechanism and the sliding bracket are both installed on the support base, the sliding bracket is used to support the buffer rack, the sliding bracket can move along the first direction on the support base, and the first driving mechanism is used to drive the sliding bracket to move in the first direction.

[0010] Furthermore, the support base is provided with a guide shaft, the sliding bracket is provided with a guide slider, and the guide slider is installed on the guide shaft and can slide on the guide shaft.

[0011] Furthermore, the first driving mechanism includes a first driver and a telescopic rod, a first mounting plate is provided on the support base, a telescopic rod connecting plate is provided on the sliding bracket, the first driver is installed on the first mounting plate, one end of the telescopic rod is connected to the telescopic rod connecting plate, and the other end of the telescopic rod is linked to the first driver, and the first driver is used to drive the telescopic rod to extend and retract in the first direction.

[0012] Furthermore, the buffer rack adjustment device also includes a lift and a second drive mechanism, the lift and the second drive mechanism are both installed on the sliding bracket, the sliding bracket is provided with a support pad for supporting the buffer rack, the support pad is installed on the lift, and the second drive mechanism is linked with the lift and is used to control the lift to drive the support pad to move in the second direction.

[0013] Furthermore, the second driving mechanism includes a second driver and a transmission shaft linked to the second driver. A second mounting plate is provided on the sliding bracket. The second driver is installed on the second mounting plate and is used to drive the transmission shaft to rotate. The transmission shaft is connected to multiple elevators and is used to drive multiple elevators to move up and down.

[0014] The present application also provides a conveying system, comprising an image sensor, a conveyor, and the buffer bed as described above, wherein the conveyor comprises a conveyor belt, the conveyor belt is placed on the buffer bed, and the image sensor is mounted on the conveyor and is used to capture images of the buffer bed area.

[0015] Furthermore, the buffer rack adjustment device is provided with a first position sensor and a second position sensor, the first position sensor is used to detect the position of the buffer rack in the first direction, and the second position sensor is used to detect the position of the buffer rack in the second direction;

[0016] A sensor sheet is provided on the periphery of the buffer frame, and the sensor sheet is used to enhance the image sensor's ability to identify the position of the buffer bed.

[0017] The present application also provides a conveying control method, which is used in the conveying system as described above, and includes:

[0018] Detect the actual material flow dividing line on the conveyor belt;

[0019] comparing the actual flow boundary with an ideal flow boundary on the buffer bed;

[0020] When the actual material flow dividing line does not coincide with the ideal material flow dividing line, the position of the buffer bed is adjusted to make the ideal material flow dividing line coincide with the actual material flow dividing line.

[0021] Furthermore, before comparing the actual material flow boundary line with the ideal material flow boundary line on the buffer bed, the method further includes:

[0022] Detect the falling information of material flow;

[0023] The ideal material flow boundary line is set on the buffer bed according to the material dropping information.

[0024] The beneficial effects of the present invention are as follows: by arranging a buffer frame adjustment device for adjusting the position of the buffer frame in the conveying direction or / and perpendicular to the conveying direction, the centering of the drop point is achieved to ensure that the buffer bed can receive all the dropped materials, ensure effective contact between the conveyor belt and the buffer strip, greatly improve the overall buffering effect of the buffer bed, thereby improving the overall buffering effect of the buffer bed under complex working conditions, greatly improving the adaptability of the buffer bed to complex material flows, and can also greatly reduce the problems of conveyor belt vibration, tearing and severe wear caused by incorrect position of the buffer bed and conveyor belt, effectively improving the service life of the buffer bed and conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a conveying system in the prior art;

[0026] Figure 2 It is a schematic diagram of the front view structure of the buffer bed in the prior art;

[0027] Figure 3 It is a side view structural diagram of a buffer bed in the prior art;

[0028] Figure 4 This is a schematic diagram of the main structure of the buffer bed in the present invention;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the impact bed in the present invention when viewed from above;

[0030] Figure 6 This is a schematic diagram of the main structure of the buffer rack adjustment device of the present invention;

[0031] Figure 7 This is a schematic diagram of the main split structure of the impact bed in the present invention;

[0032] Figure 8 This is a schematic diagram of the split structure of the impact bed in the present invention when viewed from above;

[0033] Figure 9 This is a schematic structural diagram of the buffer bed in the first position state of the present invention;

[0034] Figure 10 1 is a schematic structural diagram of the buffer bed in the second position state of the present invention;

[0035] Figure 11 It is a structural schematic diagram of the conveying system of the present invention;

[0036] Figure 12 It is a structural schematic diagram of the conveying system from the perspective of the image sensor in the present invention.

[0037] In the figure: buffer frame 10, lifting top plate 11, buffer bar 20, buffer frame adjustment device 30, support base 31, guide shaft 311, first mounting plate 312, guide shaft support seat 313, first driving mechanism 32, first driver 321, telescopic rod 322, sliding bracket 33, guide slider 331, telescopic rod connecting plate 332, support pad 333, second mounting plate 334, elevator 34, second driving mechanism 35, second driver 351, transmission shaft 352, coupling 353, image sensor 40, conveyor belt 50, first position sensor 61, second position sensor 62, sensor sheet 63, discharge port 70, actual material flow dividing line A, ideal material flow dividing line B, material flow C, falling material concentration area C1, scattered falling material area C2, first direction F1, second direction F2. DETAILED DESCRIPTION

[0038] To further illustrate the technical means and effects of the present invention to achieve the predetermined purpose of the invention, the following, in conjunction with the accompanying drawings and preferred embodiments, describes in detail the specific implementation, structure, features and effects of the buffer bed for a conveyor belt, the conveying system, and the conveying control method proposed in the present invention:

[0039] Figure 4 It is a schematic diagram of the main structure of the buffer bed in the present invention. Figure 5 It is a schematic diagram of the three-dimensional structure of the impact bed in the present invention when viewed from above. Figure 6 It is a schematic diagram of the main structure of the buffer rack adjustment device in the present invention. Figure 7 It is a schematic diagram of the main split structure of the buffer bed in the present invention. Figure 8 It is a schematic diagram of the split structure of the impact bed in the present invention when viewed from above. Figure 9 It is a schematic structural diagram of the buffer bed in the first position state in the present invention. Figure 10 1 is a schematic structural diagram of the buffer bed in the second position state of the present invention;

[0040] like Figures 4 to 10As shown, the present invention provides a buffer bed for a conveyor belt, including a buffer frame 10, a buffer strip 20 and a buffer frame adjustment device 30, the buffer strip 20 is installed on the buffer frame 10, the buffer frame 10 is installed on the buffer frame adjustment device 30, and the buffer frame adjustment device 30 is used to drive the buffer frame 10 to move in a first direction F1 and / or a second direction F2, wherein the first direction F1 is parallel to the conveying direction of the conveyor belt, and the second direction F2 is perpendicular to the conveying direction of the conveyor belt.

[0041] In this embodiment, the buffer rack adjustment device 30 can simultaneously drive the buffer rack 10 to move in the first direction F1 and the second direction F2, thereby allowing the buffer rack adjustment device 30 to adjust the position of the buffer rack 10 in the conveying direction and perpendicular to the conveying direction. Of course, in other embodiments, the buffer rack adjustment device 30 can also drive the buffer rack 10 to move only in the first direction F1, thereby allowing the buffer rack adjustment device 30 to adjust the position of the buffer rack 10 in the conveying direction; or the buffer rack adjustment device 30 can also drive the buffer rack 10 to move only in the second direction F2, thereby allowing the buffer rack adjustment device 30 to adjust the position of the buffer rack 10 perpendicular to the conveying direction.

[0042] In this embodiment, Figures 6 to 8 As shown, the buffer rack adjustment device 30 includes a support base 31, a first driving mechanism 32 and a sliding bracket 33. The first driving mechanism 32 and the sliding bracket 33 are both installed on the support base 31. The sliding bracket 33 is used to support the buffer rack 10. The sliding bracket 33 can move along the first direction F1 on the support base 31. The first driving mechanism 32 is used to drive the sliding bracket 33 to move in the first direction F1.

[0043] Furthermore, the support base 31 is provided with a guide shaft 311, and the sliding bracket 33 is provided with a guide slider 331. The guide slider 331 is mounted on the guide shaft 311 and is capable of sliding on the guide shaft 311. The support base 31 is also provided with a guide shaft support seat 313 for mounting the guide shaft 311. The guide shaft 311 is secured to the support base 31 via the guide shaft support seat 313, with both ends and the middle of the guide shaft 311 connected to the guide shaft support seat 313. The guide slider 331 is located at the bottom of the sliding bracket 33. The guide slider 331 and the sliding bracket 33 can be integrally formed or secured to the sliding bracket 33 via bolts. A linear bearing can also be provided within the shaft hole of the guide slider 331 to reduce resistance when the guide slider 331 slides on the guide shaft 311. The guide shaft 311 extends along a first direction F1, thereby enabling the sliding bracket 33 to slide along the guide shaft 311 along the first direction F1.

[0044] Furthermore, the first driving mechanism 32 includes a first driver 321 and a telescopic rod 322, a first mounting plate 312 is provided on the support base 31, and a telescopic rod connecting plate 332 is provided on the sliding bracket 33 ( Figure 8 ), a first actuator 321 is mounted on the first mounting plate 312. One end of the telescopic rod 322 is connected to the telescopic rod connecting plate 332, and the other end of the telescopic rod 322 is linked to the first actuator 321. The first actuator 321 is used to drive the telescopic rod 322 to extend and retract in the first direction F1. The telescopic rod connecting plate 332 is welded integrally to the sliding bracket 33. The first actuator 321 preferably utilizes a servo motor, and the telescopic rod 322 utilizes a nut-screw structure. The first actuator 321 drives the telescopic rod 322 to extend and retract in the first direction F1, and the sliding bracket 33 slides on the guide shaft 311 under the force of the telescopic rod 322. Of course, in other embodiments, the telescopic rod 322 may utilize a telescopic air cylinder or a telescopic oil cylinder, in which case the first actuator 321 is a corresponding air pump or oil pump.

[0045] In this embodiment, the buffer frame adjustment device 30 also includes a lifter 34 and a second drive mechanism 35. The lifter 34 and the second drive mechanism 35 are both installed on the sliding bracket 33. The sliding bracket 33 is provided with a support pad 333 for supporting the buffer frame 10. The support pad 333 is installed on the lifter 34. The second drive mechanism 35 is linked with the lifter 34 and is used to control the lifter 34 to drive the support pad 333 to move in the second direction F2. Among them, the lifter 34 is an existing product, and the internal structure can be a nut screw structure or a gear rack structure. For details, please refer to the existing technology. The support pad 333 can be made of a material with a buffering effect, such as rubber. Because the buffer frame 10 will have a certain vibration when it is impacted, the lifter 34 and the lifting top plate 11 ( Figure 5 ) is placed between the support pad 333 with a buffering effect to reduce the impact on the elevator 34.

[0046] Furthermore, the second drive mechanism 35 includes a second driver 351 and a transmission shaft 352 coupled to the second driver 351. A second mounting plate 334 is provided on the sliding bracket 33. The second driver 351 is mounted on the second mounting plate 334 and is used to rotate the transmission shaft 352. The transmission shaft 352 is connected to the plurality of elevators 34 and is used to drive the plurality of elevators 34 upward and downward. The second mounting plate 334 is welded integrally to the sliding bracket 33. The second driver 351 is preferably a servo motor. The second driver 351 drives the elevators 34 upward and downward via the transmission shaft 352, thereby raising and lowering the support pads 333, thereby adjusting the movement of the buffer rack 10 in the second direction F2.

[0047] In this embodiment, there are two second drivers 351 and two transmission shafts 352, and four elevators 34 and four support pads 333. Each transmission shaft 352 is connected to two elevators 34. Each second driver 351 drives two elevators 34 to move up and down via the transmission shaft 352. The two second drivers 351 operate synchronously, thereby simultaneously driving the four support pads 333 to move up and down. Furthermore, the second drive mechanism 35 also includes a coupling 353, which is connected to the transmission shaft 352 and the elevators 34, so that the transmission shaft 352 can drive the two elevators 34 to move up and down.

[0048] In this embodiment, a lifting top plate 11 is provided at the bottom of the buffer frame 10, and the lifting top plate 11 is connected to the support pad 333 of the buffer frame adjustment device 30. By providing the lifting top plate 11, the support pad 333 can make the force on the entire buffer frame 10 more uniform.

[0049] It can be understood that the range of movement of the buffer rack 10 is mainly determined by various factors such as the length of the buffer rack 10 itself, the size of the discharge port, the conveying volume and the working conditions of the production line. Figure 12 The larger the possible material drop range, the greater the required stroke of the first drive mechanism 32 of the buffer rack adjustment device 30. In this embodiment, the stroke of the first drive mechanism 32 is selected to be 400mm. The up and down movement of the elevator 34 is a fine adjustment, and its stroke is 10mm-20mm. When the stroke is 10mm, the range of the height difference between the buffer bar 20 and the conveyor belt 50 that can be achieved by lifting is small, which is suitable for conveying systems with small changes in the material flow C. A stroke of 20mm can basically meet the adjustment requirements for most working conditions. The stroke of the elevator 34 is preferably 20mm. Because there is an upper limit to the height difference between the buffer bar 20 and the conveyor belt 50, a larger stroke is not required.

[0050] Moreover, the entire buffer frame adjustment device 30 is basically under the protection of the buffer frame 10 and the conveyor belt 50, and is protected by the conveyor material guide trough. The probability of large materials appearing on the buffer frame adjustment device 30 is extremely low, and what may appear are relatively fine particles and dust. Therefore, the transmission shaft 352 and the guide shaft 311 need to be surface hardened, and the guide slider 331 needs to move along the first direction F1 on the guide shaft 311. Therefore, the bearing inside the guide slider 331 needs to use self-lubricating graphite copper sleeve bearings or other self-lubricating bearings.

[0051] Figure 11 It is a structural schematic diagram of the conveying system in the present invention. Figure 12 Schematic diagram of the structure of the conveying system under the perspective of the image sensor in the present invention. Figure 11 and Figure 12As shown, the present application also provides a conveying system comprising an image sensor 40, a conveyor (not shown), and the aforementioned buffer bed. The conveyor comprises a conveyor belt 50, which is placed on the buffer bed. The image sensor 40 is mounted on the conveyor and is used to capture images of the buffer bed area. The image sensor 40 is a camera mounted on the material guide chute bracket of the conveyor. The installation height of the image sensor 40 and its distance from the buffer bed can be set according to actual conditions, as long as the image sensor 40's imaging area fully covers the entire buffer bed area and the material flow C above. When the conveying system is operating normally, the camera can monitor the buffer bed area. The camera only needs a viewing angle β of 30° to cover all positions of the buffer bed's forward and backward movement, and the camera's maximum required viewing distance is within 3 meters. Currently, most cameras have a viewing angle of more than 70°, and the camera area fully covers the entire buffer bed area and the material flow C above.

[0052] Furthermore, the buffer rack adjustment device 30 is provided with a first position sensor 61 and a second position sensor 62 . The first position sensor 61 is used to detect the position of the buffer rack 10 in the first direction F1 , and the second position sensor 62 is used to detect the position of the buffer rack 10 in the second direction F2 .

[0053] Furthermore, to facilitate the image sensor 40 to identify the overall position of the impact bed, a sensor sheet 63 is provided on the periphery of the impact bed frame 10. The sensor sheet 63 is used to enhance the image sensor 40's ability to identify the impact bed's position. The sensor sheet 63 is, for example, a brightly colored patch or a luminous patch.

[0054] The present application also provides a conveying control method, which is used in the conveying system as described above, and includes:

[0055] Detect the actual material flow boundary A on the conveyor belt 50. Specifically, the video captured by the image sensor 40 is transmitted to the corresponding display screen and controller. The controller uses video analysis software to analyze the video and confirm the current actual material flow boundary A. Material flow C falls from the discharge port 70 onto the conveyor belt 50. After being buffered by the buffer bed, it is quickly transported forward by the conveyor belt 50. The background of the conveyor belt 50 is divided into two areas: the material area and the empty area. The actual material flow boundary A can be roughly demarcated between these two areas.

[0056] Compare the actual material flow boundary line A with the ideal material flow boundary line B on the buffer bed. The ideal material flow boundary line B can be set based on the length of the buffer bed, meaning it will not change based on the material flow C's material flow information. Alternatively, the ideal material flow boundary line B can be determined based on both the buffer bed length and the material flow information, meaning it will change based on the material flow C's material flow information.

[0057] In this embodiment, the step of determining the ideal material flow dividing line B includes:

[0058] The material flow C's falling material information is detected, and ideal material flow boundaries B are set on the buffer bed based on this information. Specifically, the video captured by the image sensor 40 is transmitted to the corresponding display screen and controller. The controller uses video analysis software to analyze the video, filtering out immovable components and the smoothly running conveyor belt 50 as the background (the exposed components of the buffer rack adjustment device 30 at the bottom of the diagram are actually obscured by the conveyor belt 50). A movable buffer bed model with visibility on both sides of the conveyor belt 50 is then established. Based on the three-dimensional simulation during the design process, a series of ideal material flow boundaries B are preset in the video analysis algorithm. These ideal material flow boundaries B are attached to the buffer rack 10 and move with it. Different ideal material flow boundaries B correspond to different material flow conditions. During debugging, the nonlinear relationship between the position of the ideal material flow boundaries B in the image and the front and rear positions of the buffer rack 10 is determined through testing and model calculations. The material flow conditions include information such as the movement speed, size, and number of the stones in the material flow, and the falling material information of material flow C is determined based on this information.

[0059] When the actual material flow boundary line A and the ideal material flow boundary line B do not overlap, the position of the buffer bed is adjusted to make the ideal material flow boundary line B overlap with the actual material flow boundary line A. The front and rear position requirements and height requirements of the buffer rack 10 can be determined based on the material flow C's falling information. The position of the buffer rack 10 where the actual material flow boundary line A corresponding to the current material flow situation overlaps with the current ideal material flow boundary line B is the required front and rear position of the buffer rack 10. This is confirmed based on the corresponding relationship between the position of the ideal material flow boundary line B in the image determined during debugging and the front and rear position of the buffer rack 10.

[0060] After confirming the corresponding position relationship between the buffer rack 10 before and after adjustment, the corresponding position to which the buffer rack 10 needs to be moved can be determined. The corresponding adjustment amount is calculated based on the current front-to-back position and vertical height information of the buffer rack 10 determined by the first position sensor 61 and the second position sensor 62. This is converted into a control signal to control the operation of the first drive mechanism 32 and the second drive mechanism 35 to move the buffer rack 10 to the corresponding position. The first position sensor 61 and the second position sensor 62 can detect the current position of the buffer rack 10 and are also used to correct errors after the buffer rack 10 is moved.

[0061] When the material flow rate is low, the material pressure on the conveyor belt 50 is low, and the buffer rack 10 needs to be raised to reduce the height difference between the buffer strips 20 and the conveyor belt 50 to strengthen the contact between the buffer strips 20 and the conveyor belt 50 and ensure the buffering effect. When the material flow rate is high, the material pressure on the conveyor belt 50 is high, and the buffer rack 10 requires a larger height difference between the buffer strips 20 and the conveyor belt 50 to ensure the buffering effect. The buffer rack 10 needs to be lowered to reduce wear on the buffer strips 20 and the conveyor belt 50. The required height position of the buffer rack 10 can be determined based on the corresponding relationship between the material flow rate and the height of the buffer rack 10. The corresponding position to which the buffer rack 10 needs to be moved has been determined through video analysis.

[0062] The present application utilizes a buffer rack adjustment device 30 to achieve real-time adjustment of the overall front-to-back position and height of the buffer rack 10, thereby significantly improving the buffer bed's adaptability to complex material flows. By adjusting the front-to-back position of the buffer rack 10, the material drop point is aligned, ensuring that the buffer bed receives all dropped material and enhancing the buffer bed's buffering effectiveness. Height adjustment allows for varying height differences between the buffer bar 20 and the conveyor belt 50 at varying conveying rates, ensuring effective contact between the conveyor belt 50 and the buffer bar 20 and significantly enhancing the overall buffering effectiveness of the buffer bed. Position adjustment in both directions significantly reduces problems such as conveyor belt 50 vibration, tearing, and severe wear of the conveyor belt 50 caused by incorrect positioning of the buffer bed and conveyor belt 50, effectively extending the service life of the buffer bed and conveyor belt 50.

[0063] In this document, directional terms such as "up," "down," "left," "right," "front," and "back" are defined based on the positions of structures in the accompanying drawings and their relative positions to each other, for the sake of clarity and convenience in presenting the technical solution. It should be understood that the use of these directional terms does not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second," etc., used herein, are used solely for distinctions and are not intended to limit quantity or order.

[0064] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A buffer bed for a conveyor belt, characterized in that: The invention comprises a buffer frame (10), a buffer bar (20) and a buffer frame adjusting device (30), wherein the buffer bar (20) is mounted on the buffer frame (10), the buffer frame (10) is mounted on the buffer frame adjusting device (30), and the buffer frame adjusting device (30) is used to drive the buffer frame (10) to move in a first direction (F1) or / and a second direction (F2), wherein the first direction (F1) is parallel to the conveying direction of the conveyor belt, and the second direction (F2) is perpendicular to the conveying direction of the conveyor belt; The buffer rack adjustment device (30) comprises a support base (31), a sliding bracket (33), an elevator (34) and a second driving mechanism (35), wherein the sliding bracket (33) is mounted on the support base (31), the sliding bracket (33) is used to support the buffer rack (10), the elevator (34) and the second driving mechanism (35) are both mounted on the sliding bracket (33), and the second driving mechanism (35) is linked with the elevator (34) and is used to control the elevator (34) to drive the buffer rack (10) to move in the second direction (F2).

2. The buffer bed for a conveyor belt according to claim 1, characterized in that: The buffer frame adjustment device (30) includes a first driving mechanism (32), the first driving mechanism (32) is installed on the support base (31), the sliding bracket (33) can move along the first direction (F1) on the support base (31), and the first driving mechanism (32) is used to drive the sliding bracket (33) to move in the first direction (F1).

3. The buffer bed for a conveyor belt according to claim 2, characterized in that: The support base (31) is provided with a guide shaft (311), the sliding bracket (33) is provided with a guide slider (331), and the guide slider (331) is installed on the guide shaft (311) and can slide on the guide shaft (311).

4. The buffer bed for a conveyor belt according to claim 2, characterized in that: The first driving mechanism (32) includes a first driver (321) and a telescopic rod (322); a first mounting plate (312) is provided on the support base (31); a telescopic rod connecting plate (332) is provided on the sliding bracket (33); the first driver (321) is mounted on the first mounting plate (312); one end of the telescopic rod (322) is connected to the telescopic rod connecting plate (332); the other end of the telescopic rod (322) is linked to the first driver (321); and the first driver (321) is used to drive the telescopic rod (322) to extend and retract in the first direction (F1).

5. The impact bed for a conveyor belt according to claim 1, characterized in that: The sliding bracket (33) is provided with a support pad (333) for supporting the buffer rack (10), and the support pad (333) is installed on the elevator (34).

6. The impact bed for a conveyor belt according to claim 5, characterized in that: The second driving mechanism (35) includes a second driver (351) and a transmission shaft (352) linked to the second driver (351); a second mounting plate (334) is provided on the sliding bracket (33); the second driver (351) is mounted on the second mounting plate (334) and is used to drive the transmission shaft (352) to rotate; the transmission shaft (352) is connected to the plurality of elevators (34) and is used to drive the plurality of elevators (34) to move upward and downward.

7. A conveying system, characterized in that: The invention comprises an image sensor (40), a conveyor, and a buffer bed according to any one of claims 1 to 6, wherein the conveyor comprises a conveyor belt (50), the conveyor belt (50) is placed on the buffer bed, and the image sensor (40) is installed on the conveyor and is used to collect images of the buffer bed area.

8. The conveying system according to claim 7, characterized in that The buffer rack adjustment device (30) is provided with a first position sensor (61) and a second position sensor (62), wherein the first position sensor (61) is used to detect the position of the buffer rack (10) in the first direction (F1), and the second position sensor (62) is used to detect the position of the buffer rack (10) in the second direction (F2); A sensing sheet (63) is provided on the periphery of the buffer frame (10), and the sensing sheet (63) is used to enhance the image sensor (40)'s ability to identify the position of the buffer bed.

9. A method for controlling conveying, characterized in that: The conveying control method is used for the conveying system according to any one of claims 7 to 8, and the conveying control method includes: Detecting an actual material flow dividing line (A) on the conveyor belt (50); Comparing the actual flow boundary (A) with the ideal flow boundary (B) on the buffer bed; When the actual material flow dividing line (A) does not coincide with the ideal material flow dividing line (B), the position of the buffer bed is adjusted to make the ideal material flow dividing line (B) coincide with the actual material flow dividing line (A).

10. The conveying control method according to claim 9, characterized in that: Before comparing the actual material flow dividing line (A) with the ideal material flow dividing line (B) on the buffer bed, the method further includes: Detect the falling material information of the material flow (C); The ideal material flow boundary line (B) is set on the buffer bed according to the material dropping information.

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