Material spreading device for material transportation and its spreading construction method

Abstract

The present invention provides a material spreading device for material transportation and its spreading construction method. The device includes a support frame, which is assembled on the material transportation component in a gantry structure; a spreading component, which is assembled on the support frame through a moving component, and a power mechanism for driving the moving component is provided on the support frame; a scraper component on the spreading component forms a temporary storage cavity, and the temporary storage cavity is used for temporarily storing materials during the spreading of the scraper component; a guiding surface, a guiding surface is provided above the spreading component, and the guiding surface enables the temporarily stored materials to form a first guiding path along the guiding surface, and when the force on the materials reaches a predetermined value, the first guiding path forms a rolling path to realize the rolling of the materials during the spreading process. In the present invention, a scraper component with a cavity structure is provided to solve the problems of material accumulation and uneven spreading.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor belt type material conveying control, and particularly to a material spreading device for material conveying and its spreading method. Background Art

[0002] When a general feeder shakes materials onto a conveyor belt for material conveying, the materials are usually concentrated in the middle or on the side of the conveyor belt, and partial bulges will appear in the cross-section of the materials on the conveyor belt. When subsequent measurements need to be carried out on the materials, some measurement activities require the materials to be flat and have a specified material thickness, such as when carrying out continuous radioactive measurement on the sand and soil on the conveyor belt.

[0003] An ordinary material leveling device levels and controls the thickness of materials through a simple vertical baffle. In the actual production process, if the thickness value is set small, there will be no materials in front of the scraper, resulting in accumulation and scattering; while if the thickness value is set large, the baffle cannot contact the materials, and effective leveling and material thickness control cannot be carried out.

[0004] Furthermore, a simple vertical baffle device cannot provide feedback on the material distribution situation, and users cannot detect abnormalities and adjust the upstream material feeding amount in a timely manner. Summary of the Invention

[0005] The purpose of the present invention is to provide a material spreading device for material conveying and its spreading method. The material spreading device uses a leveling scraper with a cavity type, which can provide a certain control redundancy for the leveling and thickness control of materials, and uses machine vision to real-time feedback the material distribution situation, which is helpful for automatic control of material detection and conveying.

[0006] To achieve the above purpose, the present invention is realized through the following technical solutions.

[0007] A material spreading device for material conveying includes:

[0008] A support frame, which is assembled on the material conveying component in a gantry structure manner;

[0009] A spreading component, which is assembled on the support frame through a moving component, and a power mechanism for driving the moving component to move is provided on the support frame;

[0010] A temporary storage cavity is formed in the scraper component on the spreading component, and the temporary storage cavity is used for temporarily storing materials during the spreading of the scraper component;

[0011] A guiding surface is provided above the spreading component. The guiding surface enables the temporarily stored materials to form a first guiding path along the guiding surface, and when the force on the materials reaches a predetermined value, a tumbling path is formed, realizing the tumbling of the materials during the spreading process.

[0012] In this technical solution, a scraper assembly with a cavity structure is provided. Compared with a flat scraper, the scraper assembly can temporarily store excess materials. In thinner areas, the raw materials stored in the accommodating cavity can flow out of the cavity during the paving process to replenish and improve the thin areas again.

[0013] In this technical solution, a guiding path is formed by the guiding surface to complete the guiding movement of the temporarily stored or excess materials, enabling them to move again. During this movement, the materials may enter another temporary storage cavity or may be dispersed to other positions, making the material dispersion more uniform.

[0014] In this technical solution, when the force on the materials in the temporary storage cavity is large enough, or when the materials are piled up enough, with the driving force of the new materials, part of the materials are tumbled and return to the material transmission assembly, realizing multiple paving and dispersion of the materials, and thus effectively controlling the flatness and thickness of the materials.

[0015] As a further improvement of the present invention, the scraper assembly includes a first scraper assembly and a second scraper assembly respectively located on both sides of the support frame. The scrapers in the first scraper assembly and the second scraper assembly form at least two cavity structures with different opening sizes and different cross-sectional areas.

[0016] In this technical solution, scraper assemblies are provided on both sides of the support frame. Thus, the paving scraper area formed by the scraper assemblies is larger. Compared with a single scraper, during paving, the two scraper assemblies will form a larger working area, and can achieve paving in more places at one time. Moreover, with the use of the moving assembly, the paving at a certain place will pass through the paving of the two scrapers. Further, different openings and cross-sectional areas are formed, so that during the entire paving process, the materials will have multiple movement paths, the dispersion effect is good, and the possibility of material tumbling increases.

[0017] As a further improvement of the present invention, in the two cavity structures with different opening sizes and different cross-sectional areas, at least one cavity structure includes a triangular structure on its cross-section.

[0018] In this technical solution, a triangular structure is included on the cross-section. Thus, at least there is an inclined surface in the triangle. Under the guidance of the inclined surface, the materials can be dispersed along the inclined surface, improving the material dispersion effect.

[0019] As a further improvement of the present invention, the first scraper assembly forms a first cavity structure with a V-shaped opening and an obtuse angle, and the second scraper assembly forms a second cavity structure with a V-shaped opening and an acute / right angle. The first cavity structure is connected to the second cavity structure.

[0020] In this technical solution, a V-shaped opening is adopted. Since the opening is relatively large, when the material enters, it can accommodate more surplus materials, which facilitates the formation of a triangle. And when finally forming a relatively narrow V shape, it also facilitates the formation of a triangle. For these structures, there are certain wavy lines at the opening of the entire cavity structure, so that the material can be dispersed from multiple angles, improving the dispersion effect.

[0021] As a further improvement of the present invention, a first top plate constituting a guiding surface is provided above the first scraper assembly. The first top plate is inclined on the first scraper assembly, and the extension line of the first top plate forms an acute angle with the material transmission assembly.

[0022] In this technical solution, on the first scraper assembly, the first top plate forms a guiding surface and is of an acute angle structure. At this time, the trajectory of guiding the material flow is relatively small, the corner formed by the trajectory is small, and it is easy for the material to be guided to move upward and then roll under the action of gravity, and then return to the material conveying assembly.

[0023] As a further improvement of the present invention, the second cavity structure forms a plurality of branch cavities with V-shaped structures, and the branch cavities communicate with each other.

[0024] In this technical solution, the second cavity structure is further divided into a plurality of branch cavities, so that its movement trajectory is more diversified. The materials enter different branch cavities respectively for corresponding temporary storage and movement dispersion, improving the dispersion effect.

[0025] As a further improvement of the present invention, it further includes a second top plate horizontally laid on the second scraper assembly to form a guiding surface, and the second top plate is a plate-like structure with a circular arc-shaped opening.

[0026] In this technical solution, the second top plate is a plate-like structure and has a circular arc-shaped opening. When the material is dispersed, it has a circular arc trajectory. Compared with the V-shaped structure, the circular arc gives another trajectory, and this trajectory has less direct collision with the material and better effect.

[0027] The present invention also discloses a paving method for the above-mentioned material paving device for material conveying, including the following steps:

[0028] S1 Operation preparation: Through the power mechanism, move the paving assembly on the support frame above the material transmission assembly to be paved, so that the paving assembly is at least in contact with the material;

[0029] S2 Paving operation: Start the material conveying assembly to drive the material to be paved to start paving along the paving assembly;

[0030] During the paving operation, as the material conveying component moves, part of the material is temporarily stored, and when the temporarily stored material reaches the set height, the temporarily stored material moves along the guiding surface to form a first guiding path;

[0031] When the force on the material in the first guiding path reaches a predetermined value, the material rolls along the rolling path and returns to the material transmission component again;

[0032] S3 Paving ends: All the materials in the material conveying component are paved along the paving component in the paving operation of step S2, and when all the materials are paved to the set value, the paving is completed.

[0033] In this technical solution, during paving, a temporary storage cavity is formed by using a scraper, so that the material is temporarily stored. At the same time, a guiding surface is arranged in the temporary storage cavity, etc., so that the temporarily stored material moves along the first guiding path. Specifically, compared with the existing paving method that only uses one scraper, the effect is better.

[0034] In this technical solution, rolling is added. Compared with the rolling by using a scraper in the prior art, in this solution, a cavity is formed by using multiple scraper components, the accommodation capacity of the cavity is relatively large, and when rolling, the starting height will be adjusted with the accumulation of the material. At the same time, through the guidance of the guiding surface, the rolling is dispersed to multiple positions, and the dispersion effect is good.

[0035] In this technical solution, during rolling and temporary storage, there are movement paths at the same time, which are interrelated with each other. At the same time, there are multiple cavities and rolling paths, so that the temporarily stored or piled materials can be temporarily stored and rolled repeatedly, and through multiple cavities, etc., they will be temporarily stored or dispersed to various positions, and the paving effect is better than that of the scraper.

[0036] As a further improvement of the present invention, in the paving operation of step S2, the material forms at least two temporary storage and paving paths through cavity structures with different cross-sections, and the two temporary storage paths disperse the material onto the material conveying component and perform paving repeatedly.

[0037] In this technical solution, different cross-sections are set, so that the size and position of the temporary storage space are different, enabling the material in the temporary storage space to have more possibilities of dispersion paths and always being flipped in the space, that is, multi-directional flipping, etc.

[0038] As a further improvement of the present invention, several branch cavities are formed in at least one of the cavity structures. By using the branch cavities, the material temporarily stored in the cavity structure is further paved and dispersed along the paths of the branch cavities.

[0039] In this technical solution, several branch cavities are formed in the cavity structure, enabling the material to be further dispersed and paved, thus improving the paving efficiency. Description of the Drawings

[0040] Figure 1 One of the schematic structural diagrams of the material spreading device for material transportation provided by the present invention;

[0041] Figure 2 Another schematic structural diagram of the material spreading device for material transportation provided by the present invention;

[0042] Figure 3 The top view of the material spreading device for material transportation provided by the present invention;

[0043] Figure 4 The front view of the material spreading device for material transportation provided by the present invention;

[0044] Figure 5 The right view of the material spreading device for material transportation provided by the present invention;

[0045] Figure 6 The bottom view of the material spreading device for material transportation provided by the present invention;

[0046] Figure 7 The control schematic diagram of the material spreading device for material transportation provided by the present invention;

[0047] Figure 8 The control schematic diagram in Embodiment 4 provided by the present invention;

[0048] Figure 9 The flowchart of the spreading method of the material spreading device for material transportation provided by the present invention;

[0049] In the figures:

[0050] 10. Material spreading device for material transportation; 20. Support frame; 30. Spreading assembly; 40. Moving assembly; 50. Scraper assembly; 51. Temporary storage cavity; 60. Guiding surface; 70. First cavity structure; 80. Second cavity structure; 1. Power mechanism; 2. Moving assembly; 3. First scraper assembly; 31. Wing plate; 32. First baffle; 33. Side plate; 34. First top plate; 35. Second top plate; 36. Second baffle; 4. Front-end camera; 5. Front-end camera support rod; 6. Slide block; 7. Rear-end camera; 8. Rear-end camera support rod; 9. Cross beam; 11. Base; 12. Slide rail; 13. Lead screw; 14. Control component; 15. Warning component; 16. Second scraper assembly; 17. Data acquisition component. Detailed Description of the Invention

[0051] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. It should be noted, however, that these embodiments are not intended to limit the present invention, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present invention.

[0052] Embodiment 1

[0053] In this embodiment, the core structure of the paving is mainly introduced.

[0054] Referring to the attached Figures 1-6 As shown, the material paving device for material conveying in this embodiment includes

[0055] a support frame 20, which is assembled on the material conveying component (not shown in the figure) in the form of a portal structure;

[0056] a paving component 30, which is assembled on the support frame 20 through a moving component, and a power mechanism 1 for driving the moving component 2 is provided on the support frame 20;

[0057] a temporary storage cavity 51 is formed in the scraper assembly 50 on the paving component 30, and the temporary storage cavity 51 is used for temporarily storing materials during the paving of the scraper assembly 50;

[0058] a guiding surface 60 is provided above the paving component 30, and the guiding surface 60 enables the temporarily stored materials to form a first guiding path along the guiding surface 60, and when the force on the materials reaches a predetermined value, a tumbling path is formed to realize the tumbling of the materials during the paving process.

[0059] In this embodiment, a scraper assembly with a cavity structure is provided. Compared with a flat scraper, the scraper assembly can temporarily store excess materials. In relatively thin areas, the raw materials stored in the accommodating cavity can flow out of the cavity during the paving process to replenish and perfect the thin areas again.

[0060] In this embodiment, a guiding path is formed by using the guiding surface to complete the guiding movement of the temporarily stored or excess materials, enabling them to move again. During this movement, the materials may enter another temporary storage cavity or may be dispersed to other positions, making the material dispersion more uniform.

[0061] In this embodiment, when the force on the materials in the temporary storage cavity is large enough, or when the material accumulation is sufficient, with the driving of the movement force of the new materials, part of the materials are tumbled and return to the material transmission component again, realizing the multiple paving and dispersion of the materials, and thus effectively controlling the flatness and thickness of the materials.

[0062] When using this embodiment, first, place the entire paving device above the material transmission component. Before the material transmission component moves horizontally, the moving component 2 moves up and down, so that the entire scraper component 50 approaches the material, and the distance between it and the material transmission component differs from the material paving thickness by 1 cm up and down. When paving, the material transmission component drives along the horizontal direction, so that the material is driven to be transmitted. At this time, the scraper component on the paving component causes some materials to be stored in the temporary storage cavity. When the material transmission component moves, the materials above it come into contact with the scraper component, and thus act on the scraper component, causing some of the upper materials to be forced to roll. When there is a lack of materials on the material transmission component, the excess materials in the temporary storage cavity automatically flow to the position where materials are lacking under the action of gravity to fill the materials.

[0063] In this technical solution, the data acquisition component is used to set and acquire data at the positions where paving is required, providing basic data for subsequent precise paving. Then, the acquired data is used for the design of relevant paving.

[0064] In this technical solution, a warning component is added to give a warning for paving when problems or abnormalities occur during paving, avoiding continuous construction and causing more serious abnormalities. Further, when paving, the paving component moves and cooperates with the control of the control component to achieve relatively precise paving control.

[0065] Embodiment 2

[0066] In this embodiment, the scraper component is introduced in detail.

[0067] As shown in the reference drawings, the scraper component in this embodiment includes a first scraper component 3 and a second scraper component 16 respectively located on both sides of the support frame 20. The scrapers in the first scraper component 3 and the second scraper component 16 form at least two cavity structures with different opening sizes and different cross-sectional areas.

[0068] In this embodiment, scraper components are arranged on both sides of the support frame. Thus, the paving scraper area formed by the scraper components is larger. Compared with a single scraper, during paving, the two scraper components will form a larger working area, and more places can be paved at one time. The moving component can also be used to make the paving at a certain place pass through the paving of the two scrapers. Further, different openings and cross-sectional areas are formed, so that during the entire paving process, the materials will have multiple movement paths, the dispersion effect is good, and the possibility of material rolling increases.

[0069] Specifically, in the two cavity structures with different opening sizes and different cross-sectional areas, at least one cross-section of the cavity structure includes a triangular structure.

[0070] In this embodiment, a triangular structure is included in the cross-section. Thus, there is at least an inclined surface in the triangle. Under the guidance of the inclined surface, the material can be dispersed along the guidance of the inclined surface, improving the dispersion effect of the material.

[0071] Preferably, the first scraper assembly 3 forms a first cavity structure 70 with a V-shaped opening and an obtuse angle, and the second scraper assembly 16 forms a second cavity structure 80 with a V-shaped opening and an acute / right angle. The first cavity structure 70 communicates with the second cavity structure 80.

[0072] In this embodiment, a V-shaped opening is adopted, and the opening is relatively large. Thus, when entering, it can accommodate more excess materials, which is convenient for the formation of a triangle. And when finally forming a narrower V shape, it is also convenient for the formation of a triangle. For these structures, the opening of the entire cavity structure has certain wavy lines, so that the material can be dispersed from multiple angles, improving the dispersion effect. During use, the materials incorporated into the two cavity structures are mixed and dispersed as the material transmission assembly moves, improving the overall paving effect.

[0073] Further, a first top plate 34 constituting a guiding surface is provided above the first scraper assembly 3. The first top plate 34 is inclined on the first scraper assembly 3, and the extension line of the first top plate 34 forms an acute angle with the material transmission assembly.

[0074] In this embodiment, on the first scraper assembly, the first top plate forms a guiding surface and has an acute angle structure. At this time, the trajectory of guiding the material flow is smaller, the corner formed by the trajectory is small, and it is easy for the material to be guided to move upward and then roll under the action of gravity, and then return to the material conveying assembly.

[0075] Further, the second cavity structure 80 forms a plurality of branch cavities each having a V-shaped structure, and the branch cavities communicate with each other.

[0076] In this embodiment, the second cavity structure is further divided into a plurality of branch cavities, so that its movement trajectory is more diversified. The materials enter different branch cavities respectively for corresponding temporary storage and movement dispersion, improving the dispersion effect.

[0077] Further, in this embodiment, it further includes a guiding partition (such as the V-shaped baffle 32 in the figure) constituting the branch cavity. Between adjacent branch cavities, they are partially separated by the guiding partition, and the guiding partition forms a second guiding path.

[0078] Refer to the appendix Figure 2It can be seen that in this embodiment, the first cavity structure 70 and the second cavity structure 80 are respectively located on both sides of the moving component 2, and the two together form a relatively large temporary storage cavity with multiple structures. The scraper between the temporary storage cavities causes the material to come into contact with the scraper repeatedly, and thus perform movements such as dispersion.

[0079] Further, it further includes a second top plate 35 horizontally laid on the second scraper assembly 16 to form a guiding surface, and the second top plate 35 is a plate-like structure with an arc-shaped opening.

[0080] In this embodiment, the second top plate is a plate-like structure and has an arc-shaped opening. Thus, when the material is dispersed, it has an arc-shaped trajectory. Compared with the V-shaped structure, the arc-shaped one gives another trajectory, and such a trajectory has less direct collision with the material and better effects.

[0081] Further, referring to the attached Figure 2 As shown, one side of the second top plate 35 is connected to the first top plate 34, and the other side is composed of a plurality of arc segments and line segments, etc. Thus, when the entire second top plate 35 is in direct contact with the material, it has multiple paths, which is convenient for the material to be dispersed from multiple angles.

[0082] Embodiment 3

[0083] In this embodiment, on the basis of Embodiments 1 and 2, the entire paving construction method is introduced.

[0084] The present invention also discloses a paving method for the above-mentioned material paving device for material transportation, including the following steps:

[0085] S1 Operation preparation: Through the power mechanism 1, move the paving component 30 on the support frame 20 above the material transmission component to be paved, so that the paving component 30 is at least in contact with the material;

[0086] Further, the moving component 2 includes a lead screw and a lifting mechanism that moves up and down along the lead screw, and the lifting mechanism moves along the height direction of the support frame through a slider.

[0087] In this embodiment, the support frame 20 includes a cross beam and slide rails arranged on both sides of the cross beam, and the slide rails are installed on the material transportation device through a base. When it is necessary to lift the support frame 20, the cross beam is lifted along the slide rails, and thus the lifting of the paving component 30 is realized.

[0088] S2 Paving operation: Start the material conveying component to drive the material to be paved to start paving along the paving component 30;

[0089] In the paving operation, as the material conveying component moves, part of the material is temporarily stored, and when the temporary storage reaches the set height, the temporarily stored material moves along the guiding surface to form a first guiding path;

[0090] When the force on the material in the first guiding path reaches a predetermined value, the material rolls along the rolling path and returns to the material conveying component again;

[0091] S3 Paving completed: All the materials in the material conveying component are paved along the paving component 30 in the paving operation of step S2, and when all the materials are paved to the set value, the paving is completed.

[0092] In this embodiment, when paving, a temporary storage cavity is formed by the scraper, so that the material is temporarily stored. At the same time, a guiding surface is provided in the temporary storage cavity, etc., so that the temporarily stored material moves along the first guiding path. Specifically, compared with the existing paving method that only uses one scraper, the effect is better.

[0093] In this embodiment, rolling is added. Compared with the rolling by the scraper in the prior art, in this solution, a cavity is formed by multiple scraper assemblies. The accommodation capacity of the cavity is relatively large, and when rolling, the starting height will be adjusted with the accumulation of the material. At the same time, through the guidance of the guiding surface, the rolling is dispersed to multiple positions, and the dispersion effect is good.

[0094] In this embodiment, when rolling and temporarily storing, there are simultaneously moving paths, which are interrelated with each other. There are multiple cavities and rolling paths at the same time, so that the temporarily stored or piled materials can be temporarily stored and rolled repeatedly. And through multiple cavities, etc., the materials will be temporarily stored or dispersed to various positions. Compared with the scraper, the paving effect is better.

[0095] Further, in the paving operation of step S2, the material forms at least two temporary storage and paving paths through cavity structures with different cross-sections, and the two temporary storage paths disperse the material onto the material conveying component and perform paving repeatedly.

[0096] In this embodiment, different cross-sections are set, so that the size and position of the temporary storage space are different, enabling the materials in the temporary storage space to have more possibilities of dispersion paths and to be continuously flipped in the space, that is, multi-directional flipping, etc.

[0097] In order to improve the dispersion effect, several branch cavities are formed in at least one of the cavity structures. By using the branch cavities, the materials temporarily stored in the cavity structure are further paved and dispersed along the paths of the branch cavities.

[0098] In this embodiment, several branch cavities are formed in the cavity structure, enabling the materials to be further dispersed and paved, thus improving the paving efficiency.

[0099] Embodiment 4

[0100] In this embodiment, a warning component is added, etc., to improve the overall paving efficiency.

[0101] Specifically, referring to Figures 1 to 7 , a material spreading device 10 for material conveying of belt conveying includes a gantry support frame 20, a spreading assembly 30, a moving assembly 40 composed of a lifting mechanism, a material position abnormal monitoring and alarm system, and a control system. The spreading assembly 30 is a semi-closed cavity jointly formed by two V-shaped baffles, two wing plates 31 with an included angle of 75° with the side plates, and side plates 33, that is, it includes a first scraper assembly 3 and a second scraper assembly 16. Refer to the attached Figure 1 As shown, the second scraper assembly 16 passes through the wing plate 31, the first baffle 32 with an acute angle of the wing plate 31, and the side plate 33. Specifically, there can be two first baffles 32, one of which is separately connected to the second top plate 35, and the other is connected to the side plate 33 for leveling the material on the conveyor belt; Refer to the attached Figure 2 As shown, the first scraper assembly 3 is directly formed by directly connecting two second baffles 36. Specifically, the second baffle 3 is an inclined plate, and the cross-section of the inclined plate is a triangular structure.

[0102] The moving assembly 40 is specifically composed of a power mechanism 1 composed of a screw rod lifting mechanism and a servo motor and a screw rod 13, which drives the spreading assembly 30 to move up and down in the vertical direction; the material position abnormal monitoring and alarm system is composed of two cameras, a data analysis module, and an alarm module in the front and back, which monitors the flatness of the position of the material on the conveyor belt;

[0103] Furthermore, in order to improve the monitoring accuracy, a plurality of distance sensors can also be arranged below the spreading assembly 30 to monitor the distance between the spreading assembly 30 and the material. When a plurality of distances are equal, it is considered that the spreading is completed.

[0104] Bases 11 are arranged on both sides of the gantry support frame and are fixed on the conveyor belt (i.e., the material transmission assembly) frame. Each of the two side bases is connected to a guide rail 12, and a cross beam 9 spans across the upper ends of the guide rails;

[0105] Sliders 6 of the two guide rails are arranged on both sides of the spreading assembly 30 and are paired with the slide rails 12 on both sides of the gantry support frame to ensure that the leveling scraper can move smoothly in the vertical direction;

[0106] Specifically, in the whole spreading assembly, for the second scraper assembly 16, it forms two branch cavities with a large and a small V-shaped opening. In the two branch cavities, one has an opening angle of 90° opening structure, and the other forms a larger opening through the side plate and the first baffle, specifically a large opening structure of 150°;

[0107] Specifically, the branch cavity with a smaller opening includes a wing plate 31 located below the second top plate 35, whose extension line forms a 30° angle with the lead screw 13, and a first baffle 32 perpendicular to the lead screw 13. The branch cavity with a larger opening includes side plates 33 located below the second top plate 35. There are two side plates 33, and the two side plates 33 form a V-shaped structure. The extension line of the side plate 33 near the smaller branch cavity forms an acute angle with the lead screw 13, and the second top plate 35 forms a 75° angle with the plane of the material conveying assembly.

[0108] The lead screw 13 of the lifting mechanism is connected to the midpoint position of the vertical projection of the paving assembly 30. The driving mechanism 1 provides driving force to drive the lead screw 13 to move up and down. The lead screw 13 drives the paving assembly 30 to move up and down in the vertical direction to adjust the distance from the conveyor belt, and further control the thickness of the material.

[0109] The driving mechanism 1 is a servo motor with a brake. After the driving mechanism 1 rotates a given angle, it will brake the driving mechanism 1 to fix the position of the lead screw 13, and thus fix the position of the paving assembly 30.

[0110] The top of the moving assembly also includes a limit switch for automatically adjusting the position of the scraper to 0.

[0111] The control system can also communicate with the outside, analyze the material leveling and thickness control commands of the external control system for the material leveling device, and participate in Figure 7 The specific process of the material leveling and thickness control is as follows:

[0112] (1) After power-on, the control system checks the status of the limit switch. If the limit switch is on, it means that the paving assembly 30 is at the 0-thickness position; if the limit switch is off, it means that the paving assembly 30 is at a non-zero thickness position. The control system controls the driving mechanism 1 composed of the servo motor to move the lead screw 13 downward until the limit switch is on. At this time, the paving assembly 30 is at the 0-thickness position.

[0113] (2) The control system analyzes the thickness control signal, and calculates the distance and direction that the paving assembly 30 needs to move by calculating the thickness information and the position information of the current paving assembly 30.

[0114] (3) Convert the distance that the lead screw 13 needs to move into the angle that the servo motor 1 needs to rotate, and convert the moving direction of the lead screw 13 into the rotating direction that the servo motor 1 needs to rotate.

[0115] (4) The control system controls the servo motor 1 to execute the conversion result in step (3).

[0116] After step (4) is completed, the control system outputs a servo motor brake signal to ensure that the lead screw 13 does not move, and records the position of the leveling scraper 30 at this time;

[0117] In this embodiment, in order to monitor the paving effect of the material, a data acquisition component is also provided, which acquires data during the paving process or after the paving is completed, and then judges the paving effect. When the paving effect is not ideal, the warning component 15 is used to give a warning reminder.

[0118] The entire monitoring system consists of two cameras, a data analysis and processing module, and an alarm component. The front camera 4 is connected to the cross beam 9 by the front camera support rod 5, monitors the distribution of the material on the conveyor belt before the material passes through the leveling scraper 30, and gives an abnormal reminder for abnormal situations; the rear camera 7 is connected to the cross beam 9 by the rear camera support rod 8, monitors the distribution of the material on the conveyor belt after the material passes through the leveling scraper 30, and gives an abnormal reminder for abnormal situations;

[0119] Preferably, the front camera 4 and the rear camera 7 are equipped with fill lights to ensure clear captured pictures;

[0120] Furthermore, several distance sensors can be selected to form a monitoring component, which is then connected to the data analysis and processing module and the alarm component. When the monitoring component detects abnormal data, it is sent to the data analysis and processing module, and then it is judged whether it exceeds the set value. If it exceeds, an alarm is given through an existing alarm component such as an audible and visual alarm.

[0121] In this embodiment, the abnormal material paving includes the following situations:

[0122] The first type is the abnormal distribution of the material on the conveyor belt, which means that due to the relatively small distance value between the paving component 30 and the conveyor belt (i.e., the material transmission component), the material overflows the cavity of the paving component 30, and the material accumulates in front of the paving component 30. At this time, the material will scatter outward from both sides of the conveyor belt; at this time, it can be directly seen through the camera, or it can be detected by the distance sensor that the distance between some materials and the paving component is too large, especially the materials located outside the material transmission component.

[0123] The second type is that the abnormal distribution of the material on the conveyor belt also includes that after the material passes through the paving component 30, due to the relatively large distance value between the paving component 30 and the conveyor belt, the material cannot be effectively leveled by the paving component 30, resulting in a bulge on the cross section of the material during transmission;

[0124] The main function of the data analysis and processing module is to classify the photos of the material distribution on the conveyor belt using a neural network into two categories: normal and abnormal. A large number of photos of possible abnormal material distributions are used in advance to train the neural network. The trained neural network classifies the input material photos, and the output results are normal material distribution and abnormal material distribution;

[0125] See Figure 7 , the monitoring process of the material position abnormal monitoring and alarm system is specifically as follows:

[0126] (1) The front-end camera 4 captures the material conditions on the conveyor belt in front of the leveling scraper 30 every 1 second;

[0127] (2) After marking the picture with "front-end", it is transmitted to the data analysis and processing module;

[0128] (3) The neural network classifies the input picture and outputs the classification result;

[0129] (4) If the output result of step (3) is "normal material distribution", the control system outputs a normal material signal outward; if the output result of step (3) is "abnormal material distribution", the control system controls the alarm module to perform an alarm operation and outputs an abnormal material signal outward;

[0130] (5) The process executed by the rear-end camera is the same as that of the front-end camera, that is, the above steps (1) to (4) are repeated.

[0131] In this embodiment, specifically during monitoring, it is preferably to set a number of distance sensors. Compared with cameras and the like, the data acquisition component composed of distance sensors has high accuracy and can obtain information in a timely manner, and can better perform the entire paving monitoring.

[0132] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

[0133] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0134] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Material spreading device for material transportation, Characterized in that, Comprising, A support frame, which is assembled on the material transportation component in the form of a portal structure; A spreading component, which is assembled on the support frame through a moving component, and a power mechanism for driving the moving component to move is provided on the support frame; A temporary storage cavity is formed in the scraper component on the spreading component, and the temporary storage cavity is used for temporarily storing materials during the spreading of the scraper component; A guiding surface is provided above the spreading component, and the guiding surface enables the temporarily stored materials to form a first guiding path along the guiding surface, and when the force on the materials in the first guiding path reaches a predetermined value, a rolling path is formed to realize the rolling of the materials during the spreading process; The scraper component includes a first scraper component and a second scraper component respectively located on both sides of the support frame, and the scrapers in the first scraper component and the second scraper component form at least two cavity structures with different opening sizes and different cross-sectional areas.

2. The material spreading device for material transportation according to claim 1, Characterized in that, In at least one of the two cavity structures with different opening sizes and different cross-sectional areas, the cross-section includes a triangular structure.

3. The material spreading device for material transportation according to claim 1, Characterized in that, The first scraper component forms a first cavity structure with a V-shaped opening and an obtuse angle, and the second scraper component forms a second cavity structure with a V-shaped opening and an acute / right angle, and the first cavity structure is connected to the second cavity structure.

4. The material spreading device for material transportation according to claim 3, Characterized in that, A first top plate constituting the guiding surface is arranged above the first scraper component, the first top plate is inclined on the first scraper component, and the extension line of the first top plate forms an acute angle with the material transportation component.

5. The material spreading device for material transportation according to claim 3, Characterized in that, The second cavity structure forms a plurality of branch cavities with V-shaped structures, and the branch cavities are connected to each other.

6. The material spreading device for material transportation according to claim 1, Characterized in that, It further includes a second top plate horizontally laid on the second scraper component to form the guiding surface, and the second top plate is a plate-like structure with an arc-shaped opening.

7. The spreading method of the material spreading device for material transportation according to any one of claims 1-6, Characterized in that, It includes the following steps: S1 Operation preparation: Through the power mechanism, move the spreading component on the support frame above the material transportation component to be spread, so that the spreading component is at least in contact with the materials; S2 Spreading operation: Start the material transportation component to drive the materials to be spread to start spreading along the spreading component; During the spreading operation, as the material transportation component moves, part of the materials are temporarily stored, and when the temporary storage reaches the set height, the temporarily stored materials move along the guiding surface to form a first guiding path; When the force on the materials in the first guiding path reaches a predetermined value, the materials roll along the rolling path and return to the material transportation component again; S3 Paving is completed: All the materials in the material conveying assembly are paved along the paving assembly in the paving operation of step S2, and when all the materials are paved to the set value, the paving is completed.

8. The paving method according to claim 7, wherein, in the paving operation of step S2, the materials form at least two temporary storage and paving paths through cavity structures with different cross-sections, and the two temporary storage paths disperse the materials onto the material conveying assembly for repeated paving.

9. The paving method according to claim 8, wherein, several branch cavities are formed in at least one of the cavity structures, and by using the branch cavities, the materials temporarily stored in the cavity structure are further paved and dispersed along the paths of the branch cavities.

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