A mobile high-precision intelligent belt quantitative feeder

Abstract

The application relates to a mobile high-precision intelligent belt quantitative feeder and relates to the technical field of belt conveyors. The mobile high-precision intelligent belt quantitative feeder comprises a conveying support, a conveying belt rotatably arranged on the conveying support, an upper hopper arranged at an upper feeding end of the conveying belt, a lower discharging assembly comprising a pressure sensor, a first lower discharging plate, a second lower discharging plate and a lower discharging controller. The pressure sensor is connected with the conveying support and the upper hopper and is used for outputting a pressure signal. The first lower discharging plate and the second lower discharging plate are both arranged at the bottom of the upper hopper. The first lower discharging plate is connected with a first motor, and the second lower discharging plate is connected with a second motor. The lower discharging controller is electrically connected with the pressure sensor, the first motor and the second motor respectively. The lower discharging controller responds to the pressure signal and is used for controlling the first motor and the second motor to act so that bulk materials are uniformly discharged on the conveying belt in the form of accumulated discharging. The application has the effect of improving the total weight measurement accuracy of the bulk materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of belt conveyors, and particularly relates to a mobile high-precision intelligent belt quantitative feeder. BACKGROUND

[0002] The belt conveyor is a main auxiliary equipment for bulk material transfer, which can reduce the labor intensity and improve the bulk material transfer efficiency. In order to accurately measure the bulk material transfer weight, a weighing device is usually arranged on the belt conveyor.

[0003] At present, the weighing device on the general belt conveyor measures the weight of the bulk material on the conveying belt through a weighing sensor, and measures the conveying speed of the conveying belt through a speed sensor. The flow of the bulk material is calculated by a metering instrument, and then the total weight of the bulk material conveying is obtained by integration, so as to realize accurate measurement of the bulk material transfer weight.

[0004] In the above weighing mode, although the weighing sensor can continuously measure the weight of the bulk material on the conveying belt, the bulk material on the conveying belt usually presents a wavy shape under different feeding flows, which easily leads to large fluctuation of the weight signal measured by the weighing sensor, thereby reducing the accuracy of the total weight measurement of the bulk material. SUMMARY

[0005] In order to prevent the bulk material on the conveying belt from presenting a wavy shape and improve the accuracy of the total weight measurement of the bulk material, the present application provides a mobile high-precision intelligent belt quantitative feeder.

[0006] The mobile high-precision intelligent belt quantitative feeder provided by the present application adopts the following technical scheme:

[0007] A mobile high-precision intelligent belt quantitative feeder comprises:

[0008] A conveying support;

[0009] A conveying belt is rotationally arranged on the conveying support;

[0010] An upper hopper is arranged at the upper feeding end of the conveying belt;

[0011] A discharging assembly comprises a pressure sensor, a first discharging plate, a second discharging plate and a discharging controller;

[0012] The pressure sensor is arranged on the conveying support and is used to output a pressure signal;

[0013] The pressure sensor is arranged on the conveying support and is used to output a pressure signal;

[0014] The first and second discharging plates are arranged alternately at the bottom of the feeding hopper, and are rotatably connected to the feeding hopper, the rotation axis of the first discharging plate is parallel to the rotation axis of the second discharging plate.

[0015] One end of the first discharging plate is provided with a first gear, and adjacent two first gears are engaged, one end of the second discharging plate away from the first gear is provided with a second gear, and adjacent two second gears are engaged.

[0016] One of the first gears is connected with a first motor, and the first motor is installed on the feeding hopper, one of the second gears is connected with a second motor, and the second motor is installed on the feeding hopper.

[0017] The discharging controller is electrically connected with the first motor, the second motor and all the pressure sensors, and is used for controlling the first motor and the second motor to start in response to the pressure signal output by the pressure sensor.

[0018] In the initial state, all the first discharging plates and all the second discharging plates are perpendicular to the discharging direction of the feeding hopper, and all the first discharging plates and all the second discharging plates jointly close the bottom of the feeding hopper.

[0019] When the pressure signal is not greater than the first preset value, the discharging controller controls the first motor to drive the first discharging plate to be perpendicular to the discharging direction of the feeding hopper; when the pressure signal is greater than the first preset value, the discharging controller controls the first motor to drive the first discharging plate to be parallel to the discharging direction of the feeding hopper.

[0020] When the pressure signal is not greater than the second preset value, the discharging controller controls the second motor to drive the second discharging plate to be perpendicular to the discharging direction of the feeding hopper; when the pressure signal is greater than the second preset value, the discharging controller controls the second motor to drive the second discharging plate to be parallel to the discharging direction of the feeding hopper, and the second preset value is greater than the first preset value.

[0021] Through the above technical scheme, in the initial state, all the first discharging plates and all the second discharging plates jointly close the bottom of the feeding hopper, so that the feeding hopper can first accumulate the bulk material, and the feeding hopper and the bulk material are extruded on the pressure sensor, and the pressure sensor outputs the pressure signal to the discharging controller.

[0022] The discharging controller controls the first motor and the second motor to start according to the pressure signal, under the driving action of the engaged first gears, all the first discharging plates can synchronously act under the driving of the first motor, and under the driving action of the engaged second gears, all the second discharging plates can synchronously act under the driving of the second motor.

[0023] When the pressure signal is not greater than the first preset value, the bulk material is in the accumulation state; when the pressure signal is greater than the first preset value and not greater than the second preset value, the discharging controller controls the first discharging plate to be parallel to the discharging direction of the feeding hopper, so that the bulk material falls from the first discharging plate to the conveying belt; when the pressure signal is greater than the second preset value, the discharging controller controls the first discharging plate and the second discharging plate to be parallel to the discharging direction of the feeding hopper, so that the bulk material falls from the first discharging plate and the second discharging plate to the conveying belt.

[0024] Since the bulk material is accumulated in the feeding hopper and then falls, the bulk material can be uniformly dropped on the conveying belt and is not easily affected by the feeding flow of the bulk material; by cooperating the first discharging plate and the second discharging plate to discharge, the discharging flow of the bulk material can adapt to different feeding flows of the bulk material, so that the feeding hopper is not prone to overflow during the accumulation and discharging process.

[0025] Therefore, the bulk material can be uniformly discharged to the conveying belt at different feeding flow rates, the bulk material is not prone to present a wave shape on the conveying belt, the weight signal measured by the weighing sensor is not prone to fluctuate, and the accuracy of the total weight measurement of the bulk material is improved.

[0026] Optionally, the conveying belt is arranged on the conveying support through two conveying rollers, the conveying rollers are rotationally connected with the conveying support, and the end of one of the conveying rollers is connected with a third motor, the third motor is installed on the conveying support and is electrically connected with the discharging controller, and the third motor is a variable-speed motor.

[0027] When the pressure signal is not greater than a third preset value, the discharging controller controls the third motor to drive the conveying roller at a first rotating speed; when the pressure signal is greater than the third preset value, the discharging controller controls the third motor to drive the conveying roller at a second rotating speed, the second rotating speed is greater than the first rotating speed, and the third preset value is greater than the second preset value.

[0028] By adopting the above technical solution, when the pressure signal is greater than the third preset value, the discharging controller can accelerate the conveying of the bulk material by the third motor, so that when the feeding flow of the bulk material exceeds the discharging capacity of the first discharging plate and the second discharging plate, the discharging capacity of the feeding hopper can be further improved by accelerating the conveying of the bulk material by the conveying belt.

[0029] Optionally, the feeding hopper is connected with a scraping assembly, the scraping assembly includes a guide chute and a scraper, the guide chute is fixedly arranged at the bottom end of the feeding hopper and is located on the side of the feeding hopper close to the discharging end of the conveying belt, and the scraper is arranged at the end of the guide chute away from the feeding hopper and is inserted into the guide opening formed by the guide chute and the conveying belt.

[0030] By adopting the above technical solution, when the bulk material falls from the first feeding plate onto the conveyor belt, the conveyor belt transports the bulk material, the bulk material moves along the guide chute, and the scraper flattens the top of the bulk material, further making the bulk material less likely to be wavy.

[0031] Optionally, the scraper is slidably connected to the guide trough along the direction close to or away from the conveyor belt. The scraper is fixedly connected to a rack, and the rack is engaged with a third gear. The second gear is located on the side of the feeding hopper close to the guide trough. The third gear is coaxially fixedly connected to one of the second gears. When the second gear drives the second discharge plate to be parallel to the discharge direction of the feeding hopper, the third gear drives the scraper to slide away from the conveyor belt.

[0032] By adopting the above technical solution, when the bulk material falls onto the conveyor belt through the first and second feeding plates, the flow rate of the bulk material will increase. The second gear can drive the scraper to slide away from the conveyor belt through the third gear and rack, so that the bulk material can be completely moved out from the guide port. On the one hand, the scraper is less likely to restrict the increase of the bulk material flow rate, and on the other hand, the guide chute can smooth the bulk material, thereby increasing the flow rate of the bulk material and enabling it to move in a flat state after the flow rate is increased.

[0033] Optionally, the bottom of the feeding hopper is conical, and both the first and second discharge plates are located at the bottom of the vertical part of the feeding hopper. An agitation assembly is provided inside the conical bottom of the feeding hopper. The agitation assembly includes a first agitation part, which includes a bidirectional telescopic rod and a first agitation rod. Both movable ends of the bidirectional telescopic rod are fixedly connected to a sliding plate. The sliding plate is slidably disposed on the conical bottom of the feeding hopper along the inclined direction of the conical bottom. Multiple first agitation rods are provided along the circumference and extension direction of the bidirectional telescopic rod. The first agitation rods are fixed on the rod body of the bidirectional telescopic rod. When the movable end of the bidirectional telescopic rod extends or retracts, the rod body of the bidirectional telescopic rod rotates relative to the movable end.

[0034] By adopting the above technical solution, since both movable ends of the bidirectional telescopic rod slide along the inclined direction of the conical bottom of the feeding hopper via the sliding plate, the sliding bidirectional telescopic rod can extend and retract, thereby driving the rod body of the bidirectional telescopic rod to rotate relative to the movable ends. Since the movable ends of the bidirectional telescopic rod are fixedly connected to the sliding plate, the rod body of the bidirectional telescopic rod can drive the first stirring rod to rotate, thereby making it less likely for the conical bottom of the feeding hopper to become blocked, and making the accumulation and discharge of bulk materials easy and smooth.

[0035] Optionally, both movable ends of the bidirectional telescopic rod are fixedly connected to a stirring block at one end inside the rod body, and the stirring block is slidably disposed in a spiral groove opened on the inner side wall of the bidirectional telescopic rod body.

[0036] By adopting the above technical solution, when the movable end of the bidirectional telescopic rod extends or retracts, the movable end of the bidirectional telescopic rod can drive the stirring block to move along the extension and retraction direction. When the stirring block moves, it also slides in the spiral groove. Since the sliding direction of the stirring block is a straight line, the stirring block can drive the rod body of the bidirectional telescopic rod to rotate by squeezing the groove wall of the spiral groove, so that the first stirring rod can stir the bulk material when the bidirectional telescopic rod slides.

[0037] Optionally, the extension and retraction direction of the bidirectional telescopic rod is parallel to the conveying direction of the conveyor belt, the slide plate is fixedly connected to the slider, the slider is slidably disposed in the first sliding hole opened on the hopper, and the agitation assembly also includes a second agitation part, which includes a connecting rod and a second agitation rod.

[0038] There are two connecting rods and two agitator rods, and they correspond one to one. The two connecting rods are symmetrically arranged on both sides of the conveyor belt in the conveying direction and are set at an included angle. One end of the connecting rod is ball-hinged to the slider near the guide chute, and the other end is ball-hinged to one end of the second agitator rod. The second agitator rod is located between the guide chute and the conveyor belt. The end of the second agitator rod near the connecting rod is slidably set in the second sliding hole opened on the guide chute.

[0039] By adopting the above technical solution, since the connecting rod is ball-hinged with the slider and the second agitator respectively, when the bidirectional telescopic rod drives the slide plate to slide, the slide plate can drive the included angle of the two connecting rods to open or close through the slider, so that the connecting rod can drive the second agitator to slide in the second sliding hole. This allows the second agitator to agitate the bulk material between the guide chute and the conveyor belt when the first agitator agitates the bottom of the hopper, making it less likely for the bulk material to get stuck between the guide chute and the conveyor belt.

[0040] Optionally, the slide plate always covers the first sliding hole during the sliding process.

[0041] By adopting the above technical solution, since the slide plate can always cover the first sliding hole, the loose material is not easy to fall from the first sliding hole, and the sliding of the slider is not easily affected by the loose material getting stuck in the first sliding hole.

[0042] Optionally, a transmission unit is connected to the slider away from the guide trough. The transmission unit includes a transmission roller and a transmission rod. Two transmission rollers are coaxially arranged, and a crankshaft is eccentrically fixed between the two transmission rollers. One end of the transmission rod is rotatably connected to the crankshaft, and the other end is hinged to the slider. The transmission rollers are rotatably connected to the conveyor support and squeeze the conveyor belt onto the transmission rollers.

[0043] By adopting the above technical solution, the conveyor roller can drive the transmission roller to rotate through the conveyor belt. During the rotation of the transmission roller, the crankshaft on the transmission roller can drive the slider to slide through the transmission rod. Thus, the sliding of the bidirectional telescopic rod can be achieved with the help of the conveying force of the conveyor belt. On the one hand, the sliding of the bidirectional telescopic rod does not require an additional drive source. On the other hand, the sliding speed and reciprocating frequency of the bidirectional telescopic rod can be increased synchronously when the conveyor belt accelerates the conveying of bulk materials.

[0044] Optionally, the sidewall of the drive roller is provided with anti-slip texture.

[0045] By adopting the above technical solution, the transmission roller abuts against the conveyor belt through anti-slip patterns, increasing the friction between the transmission roller and the conveyor belt, making it less prone to slippage, and thus making the driving force of the transmission roller on the transmission rod easier to stabilize.

[0046] In summary, this application includes at least one of the following beneficial technical effects:

[0047] 1. By setting up a pressure sensor, a first feeding plate, a second feeding plate, and a feeding controller, the bulk material in the hopper can be evenly discharged onto the conveyor belt through accumulation and discharge, thereby making the bulk material on the conveyor belt less likely to be wavy and improving the accuracy of the total weight measurement of bulk material.

[0048] 2. By setting up a guide chute, scraper, rack and pinion and third gear, the bulk material can be leveled when it is moved out of the feeding hopper, and the bulk material is less likely to be wavy;

[0049] 3. By setting up a bidirectional telescopic rod, a sliding plate, a stirring block, a first stirring rod, and opening a spiral groove on the body of the bidirectional telescopic rod, the bidirectional telescopic rod can drive the first stirring rod to stir the bulk material during the sliding process;

[0050] 4. By hinged connecting rods to sliders and second agitator rods respectively, the second agitator rod can agitate the bulk material between the guide chute and the conveyor belt by means of the driving force generated by the sliding of the bidirectional telescopic rod. Attached Figure Description

[0051] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0052] Figure 2 This is a structural schematic diagram from another angle of an embodiment of this application;

[0053] Figure 3 This is a schematic diagram of the agitator assembly;

[0054] Figure 4 It is a cross-sectional view of the stirring block and the spiral groove;

[0055] Figure 5This is a schematic diagram of the second stirring section.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Conveyor support; 2. Conveyor belt; 21. Conveyor roller; 22. Third motor; 3. Feeding hopper; 31. First sliding hole; 4. Discharging assembly; 41. Pressure sensor; 411. Support rod; 42. First discharging plate; 421. First gear; 422. First motor; 43. Second discharging plate; 431. Second gear; 432. Second motor; 44. Discharging controller; 5. Scraping assembly; 51. Guide chute; 511. Second sliding hole; 52. Scraper; 53. Rack; 54. Third gear; 6. Agitating assembly; 61. First agitator; 611. Bidirectional telescopic rod; 6111 6112. Slide plate; 6113. Stirring block; 6114. Spiral groove; 6115. Slider; 612. First stirring rod; 62. Second stirring part; 621. Connecting rod; 622. Second stirring rod; 63. Transmission part; 631. Transmission roller; 6311. Crankshaft; 6312. Anti-slip texture; 632. Transmission rod; 7. Moving guide assembly; 71. Moving wheel; 711. Moving bracket; 712. Swing bracket; 72. Connecting rod; 73. Swing rod; 731. Handle; 8. Automatic leveling assembly; 81. Tilt sensor; 82. Electric telescopic rod; 83. Leveling controller; 9. Collection hopper. Detailed Implementation

[0058] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0059] This application discloses a mobile, high-precision intelligent belt quantitative feeder. (Refer to...) Figure 1 A mobile high-precision intelligent belt quantitative feeder includes a conveyor support 1, a conveyor belt 2, a feeding hopper 3, and a discharging component 4. The conveyor belt 2 is rotatably mounted on the conveyor support 1, the feeding hopper 3 is mounted on the feeding end of the conveyor belt 2, and the discharging component 4 is mounted on the feeding hopper 3 and is used to allow the loose material in the feeding hopper 3 to accumulate first and then fall onto the conveyor belt 2.

[0060] In use, the conveyor belt 2 is rotated to load the bulk material into the hopper 3. The hopper 3 allows the bulk material to accumulate and then fall onto the conveyor belt 2. The conveyor belt 2 transports the bulk material, ensuring that the bulk material falls evenly onto the conveyor belt 2. This prevents the bulk material on the conveyor belt 2 from forming waves and improves the accuracy of the total weight measurement of the bulk material.

[0061] Reference Figure 1The conveyor support 1 is a rectangular frame and is horizontally arranged. The conveyor belt 2 is arranged parallel to the top surface of the conveyor support 1 by two conveyor rollers 21. The two conveyor rollers 21 are located at both ends of the conveyor belt 2, and both ends of the conveyor rollers 21 are rotatably connected to the conveyor support 1. The end of the conveyor roller 21 near the material feeding end of the conveyor belt 2 is connected to a third motor 22. The third motor 22 is fixedly connected to the conveyor support 1, and the output shaft of the third motor 22 is coaxially fixedly connected to the conveyor roller 21. The third motor 22 is a variable speed motor.

[0062] The feeding hopper 3 is rectangular and vertically arranged. The bottom of the feeding hopper 3 is a four-sided pyramid shape. The feeding hopper 3 is located directly above the feeding end of the conveyor belt 2.

[0063] The feeding assembly 4 includes a pressure sensor 41, a first feeding plate 42, a second feeding plate 43, and a feeding controller 44. Four pressure sensors 41 are provided and symmetrically arranged on both sides of the feeding hopper 3. The four pressure sensors 41 are symmetrically arranged on both sides of the conveyor belt 2 in the conveying direction. The pressure sensors 41 are horizontally arranged and their bottom ends are fixed to the conveyor support 1. The top of the pressure sensor 41 is fixed to a vertically arranged support rod 411. The support rod 411 is circular and its top end is fixed to the side wall of the feeding hopper 3. The pressure sensor 41 is used to output pressure signals.

[0064] The first feeding plate 42 and the second feeding plate 43 are both rectangular plates, and there are multiple of them. The first feeding plate 42 and the second feeding plate 43 are alternately arranged at the bottom of the vertical part of the feeding hopper 3. The first feeding plate 42 and the second feeding plate 43 are rotatably connected to the feeding hopper 3. The rotation axis of the first feeding plate 42 is parallel to the rotation axis of the second feeding plate 43 and parallel to the conveying direction of the conveyor belt 2.

[0065] Reference Figure 1 and Figure 2 A first gear 421 is fixedly connected to the end of the first feeding plate 42 away from the feeding end of the conveyor belt 2. The first gear 421 is located outside the feeding hopper 3, and its axis coincides with the rotation axis of the first feeding plate 42. Adjacent first gears 421 mesh. A second gear 431 is provided at the end of the second feeding plate 43 away from the first gear 421. The second gear 431 is located outside the feeding hopper 3, and its axis coincides with the rotation axis of the second feeding plate 43. Adjacent second gears 431 mesh.

[0066] One of the first gears 421 is connected to a first motor 422, which is fixedly connected to the feeding hopper 3. The output shaft of the first motor 422 is coaxially fixedly connected to the first gear 421. One of the second gears 431 is connected to a second motor 432, which is fixedly connected to the feeding hopper 3. The output shaft of the second motor 432 is coaxially fixedly connected to the second gear 431.

[0067] The feeding controller 44 is fixedly connected to the conveying bracket 1. The feeding controller 44 is electrically connected to the first motor 422, the second motor 432, the third motor 22 and all the pressure sensors 41. The feeding controller 44 responds to the pressure signal output by the pressure sensor 41 and is used to control the start of the first motor 422 and the second motor 432 and the speed of the third motor 22.

[0068] Reference Figure 1 In the initial state, all the first discharge plates 42 and all the second discharge plates 43 are perpendicular to the discharge direction of the feeding hopper 3, and all the first discharge plates 42 and all the second discharge plates 43 together close the bottom of the feeding hopper 3.

[0069] When the pressure signal is not greater than the first preset value, the feeding controller 44 controls the first motor 422 to drive the first feeding plate 42 perpendicular to the feeding direction of the feeding hopper 3; when the pressure signal is greater than the first preset value, the feeding controller 44 controls the first motor 422 to drive the first feeding plate 42 parallel to the feeding direction of the feeding hopper 3.

[0070] When the pressure signal is not greater than the second preset value, the feeding controller 44 controls the second motor 432 to drive the second feeding plate 43 perpendicular to the feeding direction of the feeding hopper 3; when the pressure signal is greater than the second preset value, the feeding controller 44 controls the second motor 432 to drive the second feeding plate 43 parallel to the feeding direction of the feeding hopper 3, and the second preset value is greater than the first preset value.

[0071] When the pressure signal is not greater than the third preset value, the feeding controller 44 controls the third motor 22 to drive the conveying roller 21 at the first speed; when the pressure signal is greater than the third preset value, the feeding controller 44 controls the third motor 22 to drive the conveying roller 21 at the second speed, the second speed is greater than the first speed, and the third preset value is greater than the second preset value.

[0072] The feeding hopper 3 is connected to a leveling component 5, which includes a guide trough 51 and a scraper 52. The guide trough 51 is rectangular and the bottom of the trough is curved into an arc shape. One end of the guide trough 51 is fixed to the bottom of the conical bottom of the feeding hopper 3. The guide trough 51 is located on the side of the feeding hopper 3 near the discharge end of the conveyor belt 2, and the opening of the guide trough 51 faces the conveyor belt 2.

[0073] The scraper 52 is rectangular and is slidably disposed at the end of the guide trough 51 away from the feed hopper 3. The sliding direction of the scraper 52 is towards or away from the conveyor belt 2. When the scraper 52 slides to the position closest to the conveyor belt 2, there is a gap between the scraper 52 and the conveyor belt 2, and the end of the scraper 52 extends into the guide opening formed by the guide trough 51 and the conveyor belt 2.

[0074] A rack 53 is fixedly connected to the end of the scraper 52 away from the conveyor belt 2. The rack 53 is slidably connected to the feeding hopper 3 along the sliding direction of the scraper 52. The rack 53 is engaged with a third gear 54, which is coaxially fixed to one of the second gears 431. There is a gap between the axis of the third gear 54 and the axis of the second motor 432. When the second gear 431 drives the second discharge plate 43 to be parallel to the discharge direction of the feeding hopper 3, the third gear 54 drives the scraper 52 to slide away from the conveyor belt 2 and cause the scraper 52 to slide out of the guide port.

[0075] When in use, the third motor 22 is started, and the third motor 22 drives the conveyor belt 2 to rotate at the first speed, loading the bulk material into the feeding hopper 3. The first feeding plate 42 and the second feeding plate 43 together seal the top of the conical bottom of the feeding hopper 3, so that the bulk material accumulates in the feeding hopper 3. The feeding hopper 3 and the bulk material are pressed against the pressure sensor 41, and the pressure sensor 41 outputs the pressure signal to the feeding controller 44.

[0076] When the pressure signal is greater than the first preset value but not greater than the second preset value, the feeding controller 44 controls the first motor 422 to start. The first motor 422 drives the first gear 421 to rotate, and the first gear 421 drives the first gear 421 that it meshes with to rotate, so that all the first gears 421 rotate synchronously. The first gear 421 drives the first feeding plate 42 to rotate, so that the first feeding plate 42 is parallel to the feeding direction of the feeding hopper 3, so that the bulk material can fall evenly from the first feeding plate 42 onto the conveyor belt 2. The conveyor belt 2 transports the bulk material from the guide chute 51 out of the feeding hopper 3. The scraper 52 scrapes the top of the bulk material to make the bulk material weigh in a flat state.

[0077] When the pressure signal is greater than the second preset value but not greater than the third preset value, the feeding controller 44 controls the second motor 432 to start. The second motor 432 drives the second gear 431 to rotate, and the second gear 431 drives the second gear 431 that it meshes with to rotate, so that all the second gears 431 rotate synchronously. The second gear 431 drives the second feeding plate 43 to rotate, so that the second feeding plate 43 is parallel to the feeding direction of the feeding hopper 3, so that the bulk material can fall evenly from the first feeding plate 42 and the second feeding plate 43 onto the conveyor belt 2. The second gear 431 connected to the third gear 54 drives the third gear 54 to rotate, and the third gear 54 drives the rack 53 to slide. The rack 53 drives the scraper 52 to slide away from the conveyor belt 2. The conveyor belt 2 transports the bulk material from the guide chute 51 out of the feeding hopper 3. The guide chute 51 smooths the top of the bulk material, so that the bulk material is weighed in a flat state.

[0078] When the pressure signal exceeds the third preset value, the feeding controller 44 controls the third motor 22 to drive the conveyor roller 21 to rotate at the second speed, causing the conveyor belt 2 to accelerate the conveying of bulk materials and quickly move the bulk materials out of the feeding hopper 3. A three-level control method is used to control the material discharge flow rate, allowing the material discharge flow rate to adapt to different bulk material feeding flow rates. Therefore, under different bulk material feeding flow rates, the feeding hopper 3 can always ensure that the bulk materials are evenly discharged onto the conveyor belt 2 in an accumulated manner, making the bulk materials on the conveyor belt 2 less prone to wavy patterns and improving the accuracy of the total weight measurement of the bulk materials.

[0079] Reference Figure 3 The feeding hopper 3 has an agitation component 6 inside its conical bottom. The agitation component 6 includes a first agitation part 61, a second agitation part 62, and a transmission part 63. The first agitation part 61 includes a bidirectional telescopic rod 611 and a first agitation rod 612.

[0080] The bidirectional telescopic rod 611 is located inside the conical bottom of the feeding hopper 3, and its telescopic direction is parallel to the conveying direction of the conveyor belt 2. The bidirectional telescopic rod 611 is circular in shape, and both movable ends of the bidirectional telescopic rod 6111 are fixedly connected to the sliding plate 6111. The sliding plate 6111 is rectangular in shape and is slidably disposed on the conical bottom of the feeding hopper 3 along the inclined direction of the conical bottom. The side of the sliding plate 6111 away from the bidirectional telescopic rod 6111 is fixedly connected to the slider 6114. The slider 6114 is rectangular in shape and is slidably disposed in the first sliding hole 31 opened on the feeding hopper 3. The sliding direction of the slider 6114 is consistent with the sliding direction of the sliding plate 6111. The first sliding hole 31 is rectangular and penetrates the wall thickness of the feeding hopper 3. The sliding plate 6111 always covers the first sliding hole 31 during the sliding process.

[0081] Reference Figure 4 The two movable ends of the bidirectional telescopic rod 611 are each fixedly connected to an agitator block 6112 located at one end of the rod body. The agitator block 6112 is semi-circular in shape and is slidably disposed within a spiral groove 6113 opened on the inner side wall of the bidirectional telescopic rod 611. The cross-section of the spiral groove 6113 along the extension direction is semi-circular, and the two spiral grooves 6113 rotate in opposite directions. When the movable ends of the bidirectional telescopic rod 611 extend or retract, the rod body of the bidirectional telescopic rod 611 rotates relative to the movable ends under the drive of the agitator block 6112.

[0082] Reference Figure 3 Multiple first stirring rods 612 are provided along the circumference and extension direction of the bidirectional telescopic rod 611. The first stirring rods 612 are circular rods, and one end of the first stirring rod 612 is fixed to the rod body of the bidirectional telescopic rod 611 in the axial direction. The axial direction of the first stirring rod 612 is consistent with the diameter direction of the bidirectional telescopic rod 611.

[0083] Reference Figure 3 and Figure 5The second agitator 62 includes a connecting rod 621 and a second agitator 622. There are two connecting rods 621 and two agitator 622, and they correspond one to one. The two connecting rods 621 are symmetrically arranged on both sides of the conveyor belt 2 in the conveying direction and are arranged at an angle. Both the connecting rod 621 and the agitator 622 are circular rods. One end of the connecting rod 621 in the axial direction is ball-hinged to the slider 6114 near the guide trough 51, and the other end is ball-hinged to one end of the second agitator 622 in the axial direction. The second agitator 622 is located between the guide trough 51 and the conveyor belt 2. The end of the second agitator 622 near the connecting rod 621 is slidably arranged in the second sliding hole 511 opened on the bottom of the guide trough 51. The second sliding hole 511 is rectangular and perpendicular to the conveying direction of the conveyor belt 2. The second agitator 622 is arranged vertically.

[0084] Reference Figure 3 The transmission unit 63 includes a transmission roller 631 and a transmission rod 632. Two transmission rollers 631 are coaxially arranged, and a crankshaft 6311 is eccentrically fixed between the two transmission rollers 631. The axis of the crankshaft 6311 is parallel to the axis of the transmission rollers 631. The transmission rollers 631 are located on the side of the feeding hopper 3 away from the guide chute 51. The transmission rollers 631 are rotatably connected to the conveying bracket 1, and their axis is parallel to the axis of the conveying roller 21. The transmission rollers 631 press the conveyor belt 2 onto the conveying roller 21. Anti-slip textures 6312 are provided on the side wall of the transmission rollers 631.

[0085] The transmission rod 632 is rectangular in shape. One end of the transmission rod 632 is rotatably connected to the crankshaft 6311, and the other end is hinged to the slider 6114.

[0086] In use, the conveyor roller 21 drives the transmission roller 631 to rotate via the conveyor belt 2. The transmission roller 631 drives the crankshaft 6311 to rotate. The crankshaft 6311 drives the transmission rod 632 to swing. The transmission rod 632 drives the slider 6114 to slide back and forth. The slider 6114 drives the bidirectional telescopic rod 611 to move back and forth via the slide plate 6111. The bidirectional telescopic rod 611 performs cyclic extension and retraction during its reciprocating movement. The stirring block 6112 drives the rod body of the bidirectional telescopic rod 611 to rotate via the spiral groove 6113. The rod body of the bidirectional telescopic rod 611 drives the first stirring rod 612 to stir the loose material at the conical bottom of the hopper 3 to prevent blockage at the conical bottom of the hopper 3.

[0087] The slider 6114 drives the two connecting rods 621 to swing, causing the included angle of the two connecting rods 621 to open or close. The connecting rods 621 drive the second stirring rod 622 to slide. During the sliding process, the second stirring rod 622 stirs the loose material between the guide chute 51 and the conveyor belt 2 to prevent the loose material from blocking the guide chute 51 and the conveyor belt 2.

[0088] Reference Figure 1The conveying support 1 is provided with a movable guide assembly 7, which includes movable wheels 71, connecting rods 72 and swing rods 73. There are four movable wheels 71, which are located at the four top corners of the bottom surface of the conveying support 1. The movable wheels 71 are rotatably connected to the movable support 711. The movable support 711 is set vertically and its top end is rotatably connected to the conveying support 1.

[0089] Two movable supports 711 near the feeding hopper 3 are each fixedly connected to a swing support 712, which is horizontally positioned. The connecting rod 72 is circular in shape, and its two ends along the axial direction are respectively hinged to the ends of the two swing supports 712 away from the movable supports 711.

[0090] The swing rod 73 is a circular rod with a curved middle section. One end of the swing rod 73 along the axial direction is hinged to the middle of the connecting rod 72, and the end of the swing rod 73 away from the connecting rod 72 is fixedly connected to the grip rod 731.

[0091] An automatic leveling assembly 8 is provided on the conveying support 1. The automatic leveling assembly 8 includes an angle sensor 81, electric telescopic rods 82, and a leveling controller 83. The angle sensor 81 is fixed on the conveying support 1 and is used to output the tilt signal of the conveying support 1. Four electric telescopic rods 82 are provided and are located at the four corners of the conveying support 1. The electric telescopic rods 82 are vertically arranged and fixed to the conveying support 1. The movable end of the electric telescopic rod 82 is located at its bottom end. The leveling controller 83 is fixed on the conveying support 1 and is electrically connected to the electric telescopic rods 82 and the angle sensor 81 respectively. The leveling controller 83 responds to the tilt signal and is used to control the extension and retraction of all the electric telescopic rods 82.

[0092] The unloading end of the conveyor belt 2 is provided with a receiving hopper 9. The receiving hopper 9 is set vertically and its top end is fixed to the conveyor support 1. The top and bottom ends of the receiving hopper 9 are open. The bottom of the receiving hopper 9 is a tapered trapezoid. The bottom of the receiving hopper 9 is inclined in a vertical downward direction away from the conveyor belt 2 on the side closest to the conveyor belt 2.

[0093] In use, push the conveyor bracket 1, which moves on the ground via the moving wheels 71. Pull the handle 731, which drives the connecting rod 72 to move via the swing rod 73. The connecting rod 72 drives the swing bracket 712 to swing, thereby adjusting the direction of travel of the moving wheels 71, making it easy for the feeder to move to the use position.

[0094] When the feeder moves to the working position, the electric telescopic rod 82 is activated. The tilt sensor 81 outputs the tilt signal of the conveying bracket 1 to the leveling controller 83. The leveling controller 83 controls the extension length of the four electric telescopic rods 82 so that the conveying bracket 1 is automatically adjusted to a horizontal state.

[0095] The implementation principle of a mobile high-precision intelligent belt quantitative feeder according to an embodiment of this application is as follows: When in use, the third motor 22 is started, and the third motor 22 drives the conveyor roller 21 to rotate at a first speed, loading the bulk material into the feeding hopper 3. The first feeding plate 42 and the second feeding plate 43 close the feeding hopper 3, so that the bulk material is accumulated in the feeding hopper 3. The feeding controller 44 controls the first motor 422, the second motor 432 and the third motor 22 to operate according to the pressure signal output by the pressure sensor 41, so that the bulk material is accumulated and discharged, so that the bulk material can fall evenly onto the conveyor belt 2 at different feeding flow rates, thereby making the bulk material on the conveyor belt 2 less likely to be wavy, and improving the accuracy of the total weight measurement of the bulk material.

[0096] The conveyor roller 21 drives the transmission roller 631 to rotate via the conveyor belt 2. The transmission roller 631 drives the bidirectional telescopic rod 611 to slide via the crankshaft 6311 and the transmission rod 632. When the bidirectional telescopic rod 611 extends or retracts, it drives its own rod body to rotate via the stirring block 6112 and the spiral groove 6113. The rod body of the bidirectional telescopic rod 611 drives the first stirring rod 612 to stir the bulk material. The bidirectional telescopic rod 611 drives the second stirring rod 622 to slide via the connecting rod 621, so that the second stirring rod 622 stirs the bulk material. Thus, during the process of bulk material accumulation and discharge, the bulk material is not easy to block the conical bottom of the feeding hopper 3, nor is it easy to block the guide chute 51 and the conveyor belt 2.

[0097] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mobile, high-precision intelligent belt feeder, characterized in that, include: Conveyor support (1); The conveyor belt (2) is rotatably mounted on the conveyor support (1); The feeding hopper (3) is located at the feeding end of the conveyor belt (2); The feeding assembly (4) includes a pressure sensor (41), a first feeding plate (42), a second feeding plate (43), and a feeding controller (44); in, At least two pressure sensors (41) are provided and are symmetrically arranged on both sides of the feeding hopper (3). The two ends of the pressure sensor (41) are fixedly connected to the feeding hopper (3) and the conveying bracket (1) respectively. The pressure sensor (41) is used to output pressure signal. Multiple first feeding plates (42) and second feeding plates (43) are provided and are alternately arranged at the bottom of the feeding hopper (3). The first feeding plate (42) and the second feeding plate (43) are rotatably connected to the feeding hopper (3). The rotation axis of the first feeding plate (42) is parallel to the rotation axis of the second feeding plate (43). A first gear (421) is provided at one end of the first feed plate (42), and two adjacent first gears (421) mesh. A second gear (431) is provided at the end of the second feed plate (43) away from the first gear (421), and two adjacent second gears (431) mesh. One of the first gears (421) is connected to a first motor (422), which is mounted on the feeding hopper (3); and one of the second gears (431) is connected to a second motor (432), which is mounted on the feeding hopper (3). The feeding controller (44) is electrically connected to the first motor (422), the second motor (432) and all the pressure sensors (41) respectively. The feeding controller (44) responds to the pressure signal output by the pressure sensor (41) and is used to control the start of the first motor (422) and the second motor (432). In the initial state, all the first discharge plates (42) and all the second discharge plates (43) are perpendicular to the discharge direction of the feeding hopper (3), and all the first discharge plates (42) and all the second discharge plates (43) together close the bottom of the feeding hopper (3); When the pressure signal is not greater than the first preset value, the feeding controller (44) controls the first motor (422) to drive the first feeding plate (42) perpendicular to the feeding direction of the feeding hopper (3); when the pressure signal is greater than the first preset value, the feeding controller (44) controls the first motor (422) to drive the first feeding plate (42) parallel to the feeding direction of the feeding hopper (3); When the pressure signal is not greater than the second preset value, the feeding controller (44) controls the second motor (432) to drive the second feeding plate (43) perpendicular to the feeding direction of the feeding hopper (3); when the pressure signal is greater than the second preset value, the feeding controller (44) controls the second motor (432) to drive the second feeding plate (43) parallel to the feeding direction of the feeding hopper (3), and the second preset value is greater than the first preset value; The conveyor belt (2) is mounted on the conveyor support (1) via two conveyor rollers (21). The conveyor rollers (21) are rotatably connected to the conveyor support (1). A third motor (22) is connected to the end of one of the conveyor rollers (21). The third motor (22) is mounted on the conveyor support (1) and electrically connected to the unloading controller (44). The third motor (22) is a variable speed motor. When the pressure signal is not greater than the third preset value, the feeding controller (44) controls the third motor (22) to drive the conveying roller (21) at the first speed. When the pressure signal is greater than the third preset value, the feeding controller (44) controls the third motor (22) to drive the conveying roller (21) at the second speed. The second speed is greater than the first speed, and the third preset value is greater than the second preset value. The feeding hopper (3) is connected to a leveling component (5). The leveling component (5) includes a guide trough (51) and a scraper (52). The guide trough (51) is fixed at the bottom of the feeding hopper (3) and located on the side of the feeding hopper (3) close to the discharge end of the conveyor belt (2). The scraper (52) is located at the end of the guide trough (51) away from the feeding hopper (3). The scraper (52) extends into the guide opening formed by the guide trough (51) and the conveyor belt (2). The scraper (52) is slidably connected to the guide trough (51) in the direction of being close to or away from the conveyor belt (2). The scraper (52) is fixedly connected to a rack (53), and the rack (53) is meshed with a third gear (54). The second gear (431) is located on the side of the hopper (3) close to the guide trough (51). The third gear (54) is coaxially fixedly connected to one of the second gears (431). When the second gear (431) drives the second discharge plate (43) to be parallel to the discharge direction of the hopper (3), the third gear (54) drives the scraper (52) to slide away from the conveyor belt (2). The bottom of the feeding hopper (3) is conical. The first feeding plate (42) and the second feeding plate (43) are both located at the bottom of the vertical part of the feeding hopper (3). An agitation assembly (6) is provided inside the conical bottom of the feeding hopper (3). The agitation assembly (6) includes a first agitation part (61). The first agitation part (61) includes a bidirectional telescopic rod (611) and a first agitation rod (612). The two movable ends of the bidirectional telescopic rod (611) are fixedly connected to a sliding plate (612). 11) The slide plate (6111) is slidably set on the conical bottom of the feeding hopper (3) along the inclined direction of the conical bottom of the feeding hopper (3). Multiple first stirring rods (612) are set along the circumference and extension direction of the bidirectional telescopic rod (611). The first stirring rod (612) is fixed on the rod body of the bidirectional telescopic rod (611). When the movable end of the bidirectional telescopic rod (611) extends or retracts, the rod body of the bidirectional telescopic rod (611) rotates relative to the movable end. The two movable ends of the bidirectional telescopic rod (611) are both fixedly connected to a stirring block (6112) at one end inside the rod body. The stirring block (6112) is slidably disposed in a spiral groove (6113) opened on the inner side wall of the bidirectional telescopic rod (611). The bidirectional telescopic rod (611) is driven to slide. When the bidirectional telescopic rod (611) extends or retracts, it drives its own rod body to rotate through the stirring block (6112) and the spiral groove (6113). The rod body of the bidirectional telescopic rod (611) drives the first stirring rod (612) to stir the bulk material.

2. The mobile high-precision intelligent belt quantitative feeder according to claim 1, characterized in that, The extension and retraction direction of the bidirectional telescopic rod (611) is parallel to the conveying direction of the conveyor belt (2). The slide plate (6111) is fixedly connected to the slider (6114). The slider (6114) is slidably disposed in the first sliding hole (31) opened on the feed hopper (3). The stirring assembly (6) also includes a second stirring part (62). The second stirring part (62) includes a connecting rod (621) and a second stirring rod (622). There are two connecting rods (621) and two agitators (622), and they correspond one to one. The two connecting rods (621) are symmetrically arranged on both sides of the conveying direction of the conveyor belt (2) and are arranged at an angle. One end of the connecting rod (621) is ball-hinged to the slider (6114) near the guide trough (51), and the other end is ball-hinged to one end of the second agitator (622). The second agitator (622) is located between the guide trough (51) and the conveyor belt (2). The end of the second agitator (622) near the connecting rod (621) is slidably arranged in the second sliding hole (511) opened on the guide trough (51).

3. A mobile high-precision intelligent belt quantitative feeder according to claim 2, characterized in that, The sliding plate (6111) always covers the first sliding hole (31) during the sliding process.

4. A mobile high-precision intelligent belt quantitative feeder according to claim 2, characterized in that, A transmission unit (63) is connected to the slider (6114) away from the guide trough (51). The transmission unit (63) includes a transmission roller (631) and a transmission rod (632). Two transmission rollers (631) are coaxially arranged. A crankshaft (6311) is eccentrically fixed between the two transmission rollers (631). One end of the transmission rod (632) is rotatably connected to the crankshaft (6311), and the other end is hinged to the slider (6114). The transmission roller (631) is rotatably connected to the conveyor bracket (1) and squeezes the conveyor belt (2) onto the conveyor roller (21).

5. A mobile high-precision intelligent belt quantitative feeder according to claim 4, characterized in that, The transmission roller (631) has anti-slip texture (6312) on its side wall.

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