Movable high-precision intelligent belt constant feeder

Abstract

The invention relates to the technical field of belt conveyors, in particular to a movable high-precision intelligent belt constant feeder which comprises a conveying support. The conveying belt is rotationally arranged on the conveying bracket; the feeding hopper is arranged at the feeding end of the conveying belt; the discharging assembly comprises a pressure sensor, a first discharging plate, a second discharging plate and a discharging controller. The pressure sensor is connected with the conveying support and the feeding hopper and used for outputting pressure signals, the first discharging plate and the second discharging plate are both arranged at the bottom of the feeding hopper, the first discharging plate is connected with a first motor, the second discharging plate is connected with a second motor, and the discharging controller is electrically connected with the pressure sensor, the first motor and the second motor. The discharging controller responds to the pressure signal and is used for controlling the first motor and the second motor to act so that the bulk materials can be evenly discharged to the conveying belt in an accumulated discharging mode. The method has the effect of improving the metering accuracy of the total weight of the bulk materials.

Description

Technical Field

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

[0002] Belt conveyor is the main auxiliary equipment for bulk material transfer. It can reduce manual labor intensity and improve the transfer efficiency of bulk materials. In order to accurately measure the transfer weight of bulk materials, weighing equipment is usually installed on the belt conveyor.

[0003] At present, the weighing equipment on the general belt conveyor measures the weight of the bulk material on the conveyor belt through the weighing sensor, and measures the conveying speed of the conveyor belt through the speed sensor. The flow rate of the bulk material is calculated by the measuring instrument, and then the total weight of the bulk material conveyed is obtained by integration to achieve accurate measurement of the bulk material transfer weight.

[0004] In the above weighing method, although the weighing sensor can continuously measure the weight of the bulk material on the conveyor belt, the bulk material on the conveyor belt usually presents an uneven wave shape under different feeding flow rates, which can easily cause large fluctuations in the weight signal measured by the weighing sensor, thereby reducing the accuracy of the total weight measurement of the bulk material. Summary of the invention

[0005] In order to prevent bulk materials on a conveyor belt from being wavy and to improve the accuracy of measuring the total weight of the bulk materials, the present application provides a mobile high-precision intelligent belt quantitative feeder.

[0006] The present application provides a mobile high-precision intelligent belt quantitative feeder, which adopts the following technical solution: A mobile high-precision intelligent belt quantitative feeder, comprising: Delivery stent; A conveying belt is rotatably arranged on a conveying bracket; A loading hopper is arranged at the loading end of the conveyor belt; A blanking assembly, comprising a pressure sensor, a first blanking plate, a second blanking plate and a blanking controller; in, At least two pressure sensors are provided and symmetrically arranged on both sides of the upper hopper. The two ends of the pressure sensor are respectively fixedly connected to the upper hopper and the conveying bracket. The pressure sensor is used to output a pressure signal. A plurality of first and second unloading plates are provided and are alternately arranged at the bottom of the upper hopper. The first and second unloading plates are both rotatably connected to the upper hopper, and the rotation axis of the first unloading plate is parallel to the rotation axis of the second unloading plate. A first gear is disposed at one end of the first blanking plate, and two adjacent first gears are meshed; a second gear is disposed at one end of the second blanking plate away from the first gear, and two adjacent second gears are meshed; One of the first gears is connected to a first motor, which is mounted on the upper hopper; one of the second gears is connected to a second motor, which is mounted on the upper hopper; The material unloading controller is electrically connected to the first motor, the second motor and all the pressure sensors respectively. The material unloading controller responds to the pressure signal output by the pressure sensor and is used to control the start-up of the first motor and the second motor; In the initial state, all the first unloading plates and all the second unloading plates are perpendicular to the unloading direction of the upper hopper, and all the first unloading plates and all the second unloading plates jointly close the bottom of the upper hopper; When the pressure signal is not greater than the first preset value, the unloading controller controls the first motor to drive the first unloading plate perpendicular to the unloading direction of the upper hopper; when the pressure signal is greater than the first preset value, the unloading controller controls the first motor to drive the first unloading plate parallel to the unloading direction of the upper hopper; When the pressure signal is not greater than the second preset value, the unloading controller controls the second motor to drive the second unloading plate perpendicular to the unloading direction of the upper hopper; when the pressure signal is greater than the second preset value, the unloading controller controls the second motor to drive the second unloading plate parallel to the unloading direction of the upper hopper, and the second preset value is greater than the first preset value.

[0007] By adopting the above technical solution, in the initial state, all the first unloading plates and all the second unloading plates jointly close the bottom of the upper hopper, so that the upper hopper can accumulate bulk material first, and the upper hopper and the bulk material are squeezed on the pressure sensor, and the pressure sensor outputs a pressure signal to the unloading controller.

[0008] The unloading controller controls the start-up of the first motor and the second motor according to the pressure signal. Under the action of the meshing first gear transmission, all the first unloading plates can move synchronously under the drive of the first motor. Under the action of the meshing second gear transmission, all the second unloading plates can move synchronously under the drive of the second motor.

[0009] When the pressure signal is not greater than the first preset value, the bulk material is in an accumulation state; when the pressure signal is greater than the first preset value and not greater than the second preset value, the unloading controller controls the first unloading plate to be parallel to the unloading direction of the upper hopper, so that the bulk material falls from the first unloading plate to the conveyor belt; when the pressure signal is greater than the second preset value, the unloading controller controls the first unloading plate and the second unloading plate to be parallel to the unloading direction of the upper hopper, so that the bulk material falls from the first unloading plate and the second unloading plate to the conveyor belt.

[0010] Since the bulk material is first accumulated in the upper hopper and then falls, the bulk material can fall evenly on the conveyor belt and is not easily affected by the bulk material feeding flow rate; the first unloading plate and the second unloading plate cooperate in dropping the material, so that the falling flow rate of the bulk material can adapt to the different feeding flow rates of the bulk material, making it difficult for the upper hopper to overflow during the accumulation and unloading process.

[0011] This allows the bulk material to be evenly fed onto the conveyor belt at different feeding flow rates, making it less likely for the bulk material to appear wavy on the conveyor belt and for the weight signal measured by the weighing sensor to fluctuate, thereby improving the accuracy of the total weight measurement of the bulk material.

[0012] Optionally, the conveyor belt is arranged on the conveyor bracket through two conveyor rollers, the conveyor rollers are rotatably connected to the conveyor bracket, the end of one of the conveyor rollers is connected to a third motor, the third motor is installed on the conveyor bracket and is electrically connected to the unloading controller, and the third motor is a variable speed motor; When the pressure signal is not greater than the third preset value, the unloading controller controls the third motor to drive the conveying roller at a first speed. When the pressure signal is greater than the third preset value, the unloading controller controls the third motor to drive the conveying roller at a second speed. The second speed is greater than the first speed. The third preset value is greater than the second preset value.

[0013] By adopting the above technical solution, when the pressure signal is greater than the third preset value, the unloading controller can accelerate the conveying of bulk materials by the third motor, so that when the feeding flow of the bulk material exceeds the unloading capacity of the first unloading plate and the second unloading plate, the unloading capacity of the upper hopper can be further improved by accelerating the conveying of bulk materials by the conveyor belt.

[0014] Optionally, the upper hopper is connected to a scraping assembly, which includes a material guide trough and a scraper. The material guide trough is fixed at the bottom end of the upper hopper and is located on the side of the upper hopper close to the unloading end of the conveyor belt. The scraper is arranged at the end of the material guide trough away from the upper hopper, and the scraper extends into the material guide port formed by the material guide trough and the conveyor belt.

[0015] By adopting the above technical solution, when the bulk material falls onto the conveyor belt through the first unloading plate, the conveyor belt conveys the bulk material, the bulk material moves along the material guide trough, and the scraper flattens the top of the bulk material, further making it less likely for the bulk material to be wavy.

[0016] Optionally, the scraper is slidably connected to the material guide trough in a direction approaching or moving away from the conveyor belt, the scraper is fixedly connected with a rack, the rack is meshed with a third gear, the second gear is located on a side of the upper hopper close to the material guide trough, the third gear is coaxially fixed to one of the second gears, when the second gear drives the second unloading plate parallel to the unloading direction of the upper hopper, the third gear drives the scraper to slide away from the conveyor belt.

[0017] By adopting the above technical solution, when the bulk material falls onto the conveyor belt through the first unloading plate and the second unloading plate, the flow rate of the bulk material will increase, and the second gear can drive the scraper to slide off the conveyor belt through the third gear and the rack, so that the bulk material can be completely moved out from the material guide port. On the one hand, the scraper is not easy to limit the increase in the bulk material flow rate, and on the other hand, the material guide trough can smooth the bulk material, so that the bulk material can increase the flow rate and move in a flat state after the increase in flow rate.

[0018] Optionally, the bottom of the upper hopper is conical, the first lower material plate and the second lower material plate are both located at the bottom of the vertical part of the upper hopper, and a stirring assembly is arranged inside the conical bottom of the upper hopper, the stirring assembly includes a first stirring part, the first stirring part includes a two-way telescopic rod and a first stirring rod, both movable ends of the two-way telescopic rod are fixedly connected with a slide plate, the slide plate is slidably arranged on the conical bottom of the upper hopper along the inclined direction, multiple first stirring rods are arranged along the circumferential direction and telescopic direction of the two-way telescopic rod, the first stirring rod is fixed on the rod body of the two-way telescopic rod, and when the movable end of the two-way telescopic rod is telescoped, the rod body of the two-way telescopic rod rotates relative to the movable end.

[0019] By adopting the above technical scheme, since the two movable ends of the two-way telescopic rod slide along the inclined direction of the conical bottom of the upper hopper through the slide, the sliding two-way telescopic rod can make the two movable ends of the two-way telescopic rod telescope, thereby driving the rod body of the two-way telescopic rod to rotate relative to the movable end; since the movable end of the two-way telescopic rod is fixedly connected to the slide, the rod body of the two-way telescopic rod can drive the first stirring rod to rotate, thereby making the conical bottom of the upper hopper less likely to be blocked, making it easy and smooth for the accumulated bulk material to be discharged.

[0020] Optionally, one end of the two movable ends of the two-way telescopic rod located inside the rod body is fixedly connected to a stirring block, and the stirring block is slidably arranged in a spiral groove opened on the inner wall of the two-way telescopic rod body.

[0021] By adopting the above technical solution, when the movable end of the two-way telescopic rod is telescoped, the movable end of the two-way telescopic rod can drive the stirring block to move along the telescopic direction, and the stirring block also slides in the spiral groove when moving. Since the sliding direction of the stirring block is a linear direction, the stirring block can drive the rod body of the two-way 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 two-way telescopic rod slides.

[0022] Optionally, the telescopic direction of the bidirectional telescopic rod is parallel to the conveying direction of the conveyor belt, the slide plate is fixedly connected with a slider, the slider is slidably arranged in a first slide hole opened on the upper hopper, and the stirring assembly further includes a second stirring part, and the second stirring part includes a connecting rod and a second stirring rod; There are two connecting rods and two second stirring rods, which correspond to each other one by one. The two connecting rods are symmetrically arranged on both sides of the conveying direction of the conveyor belt and are arranged at an angle. One end of the connecting rod is ball-hinged on a slider close to the material guide trough, and the other end is ball-hinged with one end of the second stirring rod. The second stirring rod is located between the material guide trough and the conveyor belt. The end of the second stirring rod close to the connecting rod is slidably arranged in a second sliding hole opened on the material guide trough.

[0023] By adopting the above technical solution, since the connecting rod is respectively hinged with the slider and the second stirring rod ball, when the bidirectional telescopic rod drives the slide plate to slide, the slide plate can drive the angle between the two connecting rods to open or close through the slider, so that the connecting rod can drive the second stirring rod to slide in the second sliding hole, so that when the first stirring rod stirs the bottom of the upper hopper, the second stirring rod can stir the bulk material between the material guide trough and the conveyor belt, so that the bulk material is not easily blocked between the material guide trough and the conveyor belt.

[0024] Optionally, the slide plate always covers the first slide hole during the sliding process.

[0025] By adopting the above technical solution, since the slide plate can always cover the first slide hole, the bulk material is not easy to fall from the first slide hole, and the sliding of the slider is not easily affected by the bulk material being stuck in the first slide hole.

[0026] Optionally, a slider away from the material guide trough is connected to a transmission part, which 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 roller is rotatably connected to the conveying bracket, and the conveying belt is extruded on the conveying roller.

[0027] By adopting the above technical solution, the conveying roller can drive the transmission roller to rotate through the conveying belt, and the crankshaft on the transmission roller can drive the slider to slide through the transmission rod during the rotation process, so that the sliding of the bidirectional telescopic rod can be assisted by the conveying force of the conveying belt. On the one hand, the sliding of the bidirectional telescopic rod does not require an additional driving source, and on the other hand, the sliding speed and reciprocating frequency of the bidirectional telescopic rod can be increased synchronously when the conveying belt accelerates the conveying of bulk materials.

[0028] Optionally, anti-slip grooves are provided on the side walls of the driving roller.

[0029] By adopting the above technical solution, the transmission roller abuts against the conveyor belt through the anti-skid grooves, which increases the friction between the transmission roller and the conveyor belt, making it less likely for the transmission roller to slip, thereby stabilizing the driving force of the transmission roller on the transmission rod.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the pressure sensor, the first unloading plate, the second unloading plate and the unloading controller, the bulk materials in the upper hopper can be evenly dropped onto the conveyor belt by accumulating the materials, so that the bulk materials on the conveyor belt are not easy to be wavy, thereby improving the accuracy of the total weight measurement of the bulk materials; 2. By providing the guide trough, scraper, rack and third gear, the bulk material can be leveled when it is moved out of the upper hopper, further making it less likely for the bulk material to be wavy; 3. By arranging a bidirectional telescopic rod, a slide plate, a stirring block, a first stirring rod, and opening a spiral groove on the rod 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; 4. By hinge-jointing the connecting rod with the sliding block and the second stirring rod ball respectively, the second stirring rod can stir the bulk material between the material guide trough and the conveyor belt with the driving force generated by the sliding of the bidirectional telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram of another angle of the embodiment of the present application; Figure 3 is a schematic diagram of the structure of the stirring assembly; Figure 4 is a cross-sectional view of the stirring block and the spiral groove; Figure 5 It is a schematic structural diagram of the second stirring part.

[0032] Description of reference numerals: 1. Conveying bracket; 2. Conveying belt; 21. Conveying roller; 22. Third motor; 3. Loading hopper; 31. First slide hole; 4. Unloading assembly; 41. Pressure sensor; 411. Support rod; 42. First unloading plate; 421. First gear; 422. First motor; 43. Second unloading plate; 431. Second gear; 432. Second motor; 44. Unloading controller; 5. Scraping assembly; 51. Guide trough; 511. Second slide hole; 52. Scraper; 53. Rack; 54. Third gear; 6. Stirring assembly; 61. First stirring part; 611. Two-way telescopic rod; 6111 , slide plate; 6112, stirring block; 6113, spiral groove; 6114, 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-skid pattern; 632, transmission rod; 7, moving guide assembly; 71, moving wheel; 711, moving bracket; 712, swing bracket; 72, connecting rod; 73, swing rod; 731, grip; 8, automatic leveling assembly; 81, tilt sensor; 82, electric telescopic rod; 83, leveling controller; 9, receiving hopper. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a mobile high-precision intelligent belt quantitative feeder. Figure 1 A mobile high-precision intelligent belt quantitative feeder includes a conveying bracket 1, a conveying belt 2, an upper hopper 3 and a lowering component 4. The conveying belt 2 is rotatably arranged on the conveying bracket 1, the upper hopper 3 is arranged at the upper end of the conveying belt 2, and the lowering component 4 is arranged on the upper hopper 3, and is used to accumulate the bulk material in the upper hopper 3 and then drop it onto the conveying belt 2.

[0035] When in use, the conveyor belt 2 is rotated to load the bulk material into the upper hopper 3. The upper hopper 3 allows the bulk material to fall onto the conveyor belt 2 after accumulation. The conveyor belt 2 conveys the bulk material so that the bulk material can fall onto the conveyor belt 2 evenly, thereby making it difficult for the bulk material on the conveyor belt 2 to be wavy, thereby improving the accuracy of measuring the total weight of the bulk material.

[0036] Reference Figure 1The conveying bracket 1 is a rectangular frame and is arranged horizontally. The conveying belt 2 is arranged parallel to the top surface of the conveying bracket 1 through two conveying rollers 21. The two conveying rollers 21 are respectively located at the two ends of the conveying belt 2. Both ends of the conveying rollers 21 are rotatably connected to the conveying bracket 1. The end of the conveying roller 21 near the unloading end of the conveying belt 2 is connected to the third motor 22. The third motor 22 is fixedly connected to the conveying bracket 1. The output shaft of the third motor 22 is coaxially fixedly connected to the conveying roller 21. The third motor 22 is a variable speed motor.

[0037] The upper hopper 3 is in a rectangular hopper shape and is vertically arranged. The bottom of the upper hopper 3 is in a quadrangular pyramid shape. The upper hopper 3 is located directly above the feeding end of the conveyor belt 2 .

[0038] The unloading component 4 includes a pressure sensor 41, a first unloading plate 42, a second unloading plate 43 and a unloading controller 44. Four pressure sensors 41 are provided and are symmetrically arranged on both sides of the upper hopper 3. The four pressure sensors 41 are symmetrically arranged on both sides of the conveying direction of the conveyor belt 2. The pressure sensor 41 is horizontally arranged, and the bottom end is fixed on the conveying bracket 1. The top end of the pressure sensor 41 is fixedly connected to a vertically arranged support rod 411. The support rod 411 is in a round rod shape, and the top end is fixedly connected to the side wall of the upper hopper 3. The pressure sensor 41 is used to output a pressure signal.

[0039] The first blanking plate 42 and the second blanking plate 43 are both rectangular plate-shaped, and are provided in plurality. The first blanking plate 42 and the second blanking plate 43 are alternately arranged at the bottom of the vertical portion of the upper hopper 3. The first blanking plate 42 and the second blanking plate 43 are both rotatably connected to the upper hopper 3. The rotation axis of the first blanking plate 42 is parallel to the rotation axis of the second blanking plate 43, and is also parallel to the conveying direction of the conveyor belt 2.

[0040] Reference Figure 1 and Figure 2 The first unloading plate 42 is fixedly connected to the end away from the unloading end of the conveyor belt 2 with a first gear 421, which is located outside the upper hopper 3. The axis of the first gear 421 coincides with the rotation axis of the first unloading plate 42, and two adjacent first gears 421 are meshed. The second unloading plate 43 is provided with a second gear 431 at one end away from the first gear 421, which is located outside the upper hopper 3. The axis of the second gear 431 coincides with the rotation axis of the second unloading plate 43, and two adjacent second gears 431 are meshed.

[0041] One of the first gears 421 is connected to a first motor 422, the first motor 422 is fixedly connected to the upper hopper 3, and 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, the second motor 432 is fixedly connected to the upper hopper 3, and the output shaft of the second motor 432 is coaxially fixedly connected to the second gear 431.

[0042] The unloading controller 44 is fixedly connected to the conveying bracket 1, and is electrically connected to the first motor 422, the second motor 432, the third motor 22 and all the pressure sensors 41 respectively. The unloading controller 44 responds to the pressure signal output by the pressure sensor 41, and is used to control the start-up of the first motor 422, the second motor 432 and the speed of the third motor 22.

[0043] Reference Figure 1 In the initial state, all the first unloading plates 42 and all the second unloading plates 43 are perpendicular to the unloading direction of the upper hopper 3 , and all the first unloading plates 42 and all the second unloading plates 43 together close the bottom of the upper hopper 3 .

[0044] When the pressure signal is not greater than the first preset value, the unloading controller 44 controls the first motor 422 to drive the first unloading plate 42 perpendicular to the unloading direction of the upper hopper 3; when the pressure signal is greater than the first preset value, the unloading controller 44 controls the first motor 422 to drive the first unloading plate 42 parallel to the unloading direction of the upper hopper 3.

[0045] When the pressure signal is not greater than the second preset value, the unloading controller 44 controls the second motor 432 to drive the second unloading plate 43 perpendicular to the unloading direction of the upper hopper 3; when the pressure signal is greater than the second preset value, the unloading controller 44 controls the second motor 432 to drive the second unloading plate 43 parallel to the unloading direction of the upper hopper 3, and the second preset value is greater than the first preset value.

[0046] When the pressure signal is not greater than the third preset value, the unloading controller 44 controls the third motor 22 to drive the conveying roller 21 at a first speed; when the pressure signal is greater than the third preset value, the unloading controller 44 controls the third motor 22 to drive the conveying roller 21 at a second speed, the second speed is greater than the first speed, and the third preset value is greater than the second preset value.

[0047] The upper hopper 3 is connected to a scraping assembly 5, which includes a material guide trough 51 and a scraper 52. The material guide trough 51 is in the shape of a rectangular trough, and the bottom of the trough is curved in an arc shape. One end of the material guide trough 51 is fixed to the bottom end of the conical bottom of the upper hopper 3. The material guide trough 51 is located on one side of the upper hopper 3 close to the unloading end of the conveyor belt 2, and the notch of the material guide trough 51 faces the conveyor belt 2.

[0048] The scraper 52 is in the shape of a rectangular plate and is slidably arranged at one end of the material guide trough 51 away from the upper hopper 3. The sliding direction of the scraper 52 is the direction of approaching or moving away from the conveyor belt 2. When the scraper 52 slides to the position closest to the conveyor belt 2, a distance is left between the scraper 52 and the conveyor belt 2, and the end of the scraper 52 extends into the material guide port formed by the material guide trough 51 and the conveyor belt 2.

[0049] The end of the scraper 52 away from the conveyor belt 2 is fixedly connected with a rack 53, and the rack 53 is slidably connected with the upper hopper 3 along the sliding direction of the scraper 52. The rack 53 is meshed with a third gear 54, and the third gear 54 is coaxially fixedly connected with one of the second gears 431, and a gap is left between the axis of the third gear 54 and the axis of the second motor 432. When the second gear 431 drives the second unloading plate 43 to be parallel to the unloading direction of the upper hopper 3, the third gear 54 drives the scraper 52 to slide away from the conveyor belt 2 and slide out of the guide port.

[0050] When in use, the third motor 22 is started, and the third motor 22 drives the conveyor belt 2 to rotate at a first speed to load the bulk material into the upper hopper 3. The first unloading plate 42 and the second unloading plate 43 jointly close the top of the conical bottom of the upper hopper 3, so that the bulk material accumulates in the upper hopper 3. The upper hopper 3 and the bulk material are squeezed on the pressure sensor 41, and the pressure sensor 41 outputs a pressure signal to the unloading controller 44.

[0051] When the pressure signal is greater than the first preset value and not greater than the second preset value, the unloading 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 its own meshing first gear 421 to rotate, so that all the first gears 421 rotate synchronously, and the first gear 421 drives the first unloading plate 42 to rotate, so that the first unloading plate 42 is parallel to the unloading direction of the upper hopper 3, so that the bulk material can be evenly dropped from the first unloading plate 42 onto the conveyor belt 2, and the conveyor belt 2 transports the bulk material from the guide trough 51 out of the upper hopper 3, and the scraper 52 scrapes the top of the bulk material flat, so that the bulk material can be weighed in a flat state.

[0052] When the pressure signal is greater than the second preset value and not greater than the third preset value, the unloading 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 engaged with itself to rotate, so that all the second gears 431 rotate synchronously, and the second gear 431 drives the second unloading plate 43 to rotate, so that the second unloading plate 43 is parallel to the unloading direction of the upper hopper 3, so that the bulk material can be evenly dropped from the first unloading plate 42 and the second unloading plate 43 onto the conveyor belt 2, the second gear 431 connected to the third gear 54 drives the third gear 54 to rotate, 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, and the conveyor belt 2 transports the bulk material from the guide trough 51 out of the upper hopper 3, and the guide trough 51 smoothes the top of the bulk material so that the bulk material is weighed in a flat state.

[0053] When the pressure signal is greater than the third preset value, the material discharge controller 44 controls the third motor 22 to drive the conveying roller 21 to rotate at the second speed, so that the conveying belt 2 accelerates the conveying of bulk materials, and the bulk materials are quickly moved out of the upper hopper 3. The material discharge flow rate is controlled by a three-level control method, so that the material discharge flow rate of the bulk materials can adapt to different bulk material feeding flow rates, so that under different bulk material feeding flow rates, the upper hopper 3 can always make the bulk materials uniformly drop onto the conveying belt 2 in an accumulated discharge manner, so that the bulk materials on the conveying belt 2 are not easy to be wavy, thereby improving the accuracy of the total weight measurement of the bulk materials.

[0054] Reference Figure 3 A stirring assembly 6 is arranged inside the conical bottom of the upper hopper 3 , and the stirring assembly 6 includes a first stirring part 61 , a second stirring part 62 and a transmission part 63 . The first stirring part 61 includes a bidirectional telescopic rod 611 and a first stirring rod 612 .

[0055] The two-way telescopic rod 611 is located inside the conical bottom of the upper hopper 3, and the telescopic direction is parallel to the conveying direction of the conveyor belt 2. The two-way telescopic rod 611 is in the shape of a round rod. The two movable ends of the two-way telescopic rod 611 are fixedly connected with a slide plate 6111. The slide plate 6111 is in the shape of a rectangular plate and is slidably set on the conical bottom of the upper hopper 3 along the inclined direction of the conical bottom of the upper hopper 3. A slider 6114 is fixedly connected to the side of the slider 6111 away from the two-way telescopic rod 611. The slider 6114 is in the shape of a rectangular block and is slidably set in the first sliding hole 31 opened on the upper hopper 3. The sliding direction of the slider 6114 is consistent with the sliding direction of the slider 6111. The first sliding hole 31 is rectangular and passes through the wall thickness of the upper hopper 3. The slider 6111 always covers the first sliding hole 31 during the sliding process.

[0056] Reference Figure 4 The two movable ends of the two-way telescopic rod 611 are fixedly connected to one end of the rod body with a stirring block 6112. The stirring block 6112 is semicircular and slidably arranged in a spiral groove 6113 provided on the inner wall of the rod body of the two-way telescopic rod 611. The cross section of the spiral groove 6113 along the extension direction is semicircular, and the two spiral grooves 6113 have opposite rotation directions. When the movable end of the two-way telescopic rod 611 is extended and retracted, the rod body of the two-way telescopic rod 611 rotates relative to the movable end under the drive of the stirring block 6112.

[0057] Reference Figure 3 The first stirring rod 612 is provided with multiple ones along the circumferential direction and the telescopic direction of the bidirectional telescopic rod 611. The first stirring rod 612 is in the shape of a circular rod, and one end in the axial direction is fixed on the rod body of the bidirectional telescopic rod 611. The axial direction of the first stirring rod 612 is consistent with the diameter direction of the bidirectional telescopic rod 611.

[0058] Reference Figure 3 and Figure 5The second stirring part 62 includes a connecting rod 621 and a second stirring rod 622. There are two connecting rods 621 and the second stirring rod 622, and they correspond to each other. 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. The connecting rod 621 and the second stirring rod 622 are both circular rods. One end of the connecting rod 621 in the axial direction is ball-hinged on the slider 6114 close to the material guide trough 51, and the other end is ball-hinged with one end of the second stirring rod 622 in the axial direction. The second stirring rod 622 is located between the material guide trough 51 and the conveyor belt 2. The end of the second stirring rod 622 close to the connecting rod 621 is slidably arranged in the second sliding hole 511 opened on the bottom of the material guide trough 51. The second sliding hole 511 is rectangular and perpendicular to the conveying direction of the conveyor belt 2. The second stirring rod 622 is vertically arranged.

[0059] Reference Figure 3 The transmission part 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. The axis direction of the crankshaft 6311 is parallel to the axis direction of the transmission roller 631. The transmission roller 631 is located on the side of the upper hopper 3 away from the guide trough 51. The transmission roller 631 is rotatably connected to the conveying bracket 1, and the axis direction is parallel to the axis direction of the conveying roller 21. The transmission roller 631 squeezes the conveying belt 2 on the conveying roller 21. The side wall of the transmission roller 631 is provided with an anti-slip pattern 6312.

[0060] The transmission rod 632 is in the shape of a rectangular rod. One end of the transmission rod 632 is rotatably connected to the crankshaft 6311 , and the other end is hinged to the slider 6114 .

[0061] When in use, the conveying roller 21 drives the transmission roller 631 to rotate through the conveying 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 two-way telescopic rod 611 to move back and forth through the slide plate 6111, the two-way telescopic rod 611 performs cyclic telescopic movement during the reciprocating movement, the stirring block 6112 drives the rod body of the two-way telescopic rod 611 to rotate through the spiral groove 6113, the rod body of the two-way telescopic rod 611 drives the first stirring rod 612 to stir the bulk material at the conical bottom of the upper hopper 3 to prevent the conical bottom of the upper hopper 3 from being blocked.

[0062] The slider 6114 drives the two connecting rods 621 to swing, so that the angle between the two connecting rods 621 opens or contracts, and the connecting rod 621 drives the second stirring rod 622 to slide. During the sliding process, the second stirring rod 622 stirs the bulk material between the material guide trough 51 and the conveyor belt 2 to prevent the bulk material from being blocked between the material guide trough 51 and the conveyor belt 2.

[0063] Reference Figure 1A movable guide assembly 7 is provided on the conveying bracket 1, and the movable guide assembly 7 includes a movable wheel 71, a connecting rod 72 and a swing rod 73. Four movable wheels 71 are provided, and the four movable wheels 71 are respectively located at four vertex positions of the bottom surface of the conveying bracket 1. The movable wheel 71 is rotatably connected to a movable bracket 711. The movable bracket 711 is vertically arranged, and the top end is rotatably connected to the conveying bracket 1.

[0064] The two movable brackets 711 near the upper hopper 3 are both fixedly connected with swing brackets 712, and the swing brackets 712 are arranged horizontally. The connecting rod 72 is in the shape of a round rod, and the two ends of the connecting rod 72 in the axial direction are respectively hinged to the ends of the two swing brackets 712 away from the movable bracket 711.

[0065] The swing rod 73 is in the shape of a round rod with a bent middle portion. One end of the swing rod 73 in the axial direction is hinged to the middle portion of the connecting rod 72 , and one end of the swing rod 73 away from the connecting rod 72 is fixedly connected to a grip rod 731 .

[0066] An automatic leveling component 8 is provided on the conveying bracket 1, and the automatic leveling component 8 includes a tilt sensor 81, an electric telescopic rod 82 and a leveling controller 83. The tilt sensor 81 is fixed on the conveying bracket 1 and is used to output a tilt signal of the conveying bracket 1; four electric telescopic rods 82 are provided, and are respectively located at four top corners of the conveying bracket 1. The electric telescopic rods 82 are vertically arranged and fixedly connected to the conveying bracket 1, and the movable end of the electric telescopic rod 82 is located at its bottom end; the leveling controller 83 is fixed on the conveying bracket 1, and is electrically connected to the electric telescopic rod 82 and the tilt 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.

[0067] A receiving hopper 9 is provided at the unloading end of the conveyor belt 2. The receiving hopper 9 is vertically arranged, and the top end is fixedly connected to the conveyor bracket 1. The top and bottom ends of the receiving hopper 9 are both open, and the bottom of the receiving hopper 9 is a contracted trapezoid, and the side of the bottom of the receiving hopper 9 close to the conveyor belt 2 is inclined in a vertical downward direction toward a direction away from the conveyor belt 2.

[0068] When in use, push the conveying bracket 1, the conveying bracket 1 moves on the ground through the moving wheel 71, pull the grip 731, the grip 731 drives the connecting rod 72 to move through the swing rod 73, and the connecting rod 72 drives the swing bracket 712 to swing to adjust the travel direction of the moving wheel 71, so that the feeder can be easily moved to the use position.

[0069] When the feeder moves to the use position, the electric telescopic rod 82 is started, and the inclination sensor 81 outputs the inclination 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 to automatically adjust the conveying bracket 1 to a horizontal state.

[0070] The implementation principle of a mobile high-precision intelligent belt quantitative feeder in an embodiment of the present application is as follows: when in use, the third motor 22 is started, and the third motor 22 drives the conveying roller 21 to rotate at a first speed to load the bulk material into the upper hopper 3. The first unloading plate 42 and the second unloading plate 43 close the upper hopper 3 to accumulate the bulk material in the upper hopper 3. The unloading 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 unloaded, so that the bulk material can be evenly dropped onto the conveyor belt 2 at different feeding flow rates, so that the bulk material on the conveyor belt 2 is not easy to be wavy, thereby improving the accuracy of the total weight measurement of the bulk material.

[0071] The conveying roller 21 drives the transmission roller 631 to rotate through the conveying belt 2, and the transmission roller 631 drives the two-way telescopic rod 611 to slide through the crankshaft 6311 and the transmission rod 632. When the two-way telescopic rod 611 is extended or retracted, the rod body of the two-way telescopic rod 611 drives the first stirring rod 612 to stir the bulk material. The two-way telescopic rod 611 drives the second stirring rod 622 to slide through the connecting rod 621, so that the second stirring rod 622 stirs the bulk material, so that during the accumulation and discharge of the bulk material, the bulk material is not easily blocked at the conical bottom of the upper hopper 3, and is not easily blocked at the material guide trough 51 and the conveying belt 2.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mobile high-precision intelligent belt quantitative feeder, characterized in that: include: Delivery stent (1); A conveying belt (2) is rotatably mounted on the conveying support (1); A loading hopper (3) is arranged at the loading end of the conveying belt (2); A material unloading assembly (4), comprising a pressure sensor (41), a first material unloading plate (42), a second material unloading plate (43) and a material unloading controller (44); in, At least two pressure sensors (41) are provided and symmetrically arranged on both sides of the upper hopper (3). The two ends of the pressure sensor (41) are respectively fixedly connected to the upper hopper (3) and the conveying bracket (1). The pressure sensor (41) is used to output a pressure signal. A plurality of first material removal plates (42) and second material removal plates (43) are provided and are alternately arranged at the bottom of the upper hopper (3); the first material removal plates (42) and the second material removal plates (43) are both rotatably connected to the upper hopper (3); and the rotation axis of the first material removal plates (42) is parallel to the rotation axis of the second material removal plates (43); A first gear (421) is disposed at one end of the first blanking plate (42), and two adjacent first gears (421) are meshed; a second gear (431) is disposed at one end of the second blanking plate (43) away from the first gear (421), and two adjacent second gears (431) are meshed; One of the first gears (421) is connected to a first motor (422), and the first motor (422) is installed on the upper hopper (3); one of the second gears (431) is connected to a second motor (432), and the second motor (432) is installed on the upper hopper (3); The material unloading controller (44) is electrically connected to the first motor (422), the second motor (432) and all the pressure sensors (41) respectively. The material unloading 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 material discharge plates (42) and all the second material discharge plates (43) are perpendicular to the material discharge direction of the upper hopper (3), and all the first material discharge plates (42) and all the second material discharge plates (43) together close the bottom of the upper hopper (3); When the pressure signal is not greater than a first preset value, the unloading controller (44) controls the first motor (422) to drive the first unloading plate (42) perpendicular to the unloading direction of the upper hopper (3); when the pressure signal is greater than the first preset value, the unloading controller (44) controls the first motor (422) to drive the first unloading plate (42) parallel to the unloading direction of the upper hopper (3); When the pressure signal is not greater than a second preset value, the unloading controller (44) controls the second motor (432) to drive the second unloading plate (43) perpendicular to the unloading direction of the upper hopper (3); when the pressure signal is greater than the second preset value, the unloading controller (44) controls the second motor (432) to drive the second unloading plate (43) parallel to the unloading direction of the upper hopper (3), and the second preset value is greater than the first preset value.

2. A mobile high-precision intelligent belt quantitative feeder according to claim 1, characterized in that: The conveyor belt (2) is arranged on the conveyor bracket (1) through two conveyor rollers (21), and the conveyor rollers (21) are rotatably connected to the conveyor bracket (1), and the end of one of the conveyor rollers (21) is connected to a third motor (22), the third motor (22) is installed on the conveyor bracket (1), and is electrically connected to the unloading controller (44), and the third motor (22) is a variable speed motor; When the pressure signal is not greater than a third preset value, the unloading controller (44) controls the third motor (22) to drive the conveying roller (21) at a first rotational speed; when the pressure signal is greater than the third preset value, the unloading controller (44) controls the third motor (22) to drive the conveying roller (21) at a second rotational speed, the second rotational speed being greater than the first rotational speed, and the third preset value being greater than the second preset value.

3. A mobile high-precision intelligent belt quantitative feeder according to claim 2, characterized in that: The upper hopper (3) is connected to a scraping assembly (5), which comprises a material guide trough (51) and a scraper (52). The material guide trough (51) is fixedly arranged at the bottom end of the upper hopper (3) and is located on a side of the upper hopper (3) close to the unloading end of the conveyor belt (2). The scraper (52) is arranged at an end of the material guide trough (51) away from the upper hopper (3). The scraper (52) extends into a material guide opening formed by the material guide trough (51) and the conveyor belt (2).

4. The mobile high-precision intelligent belt quantitative feeder according to claim 3 is characterized in that: The scraper (52) is slidably connected to the guide trough (51) in a direction approaching or moving away from the conveyor belt (2); the scraper (52) is fixedly connected to a rack (53); the rack (53) is meshed with a third gear (54); the second gear (431) is located on a side of the upper 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 unloading plate (43) to be parallel to the unloading direction of the upper hopper (3), the third gear (54) drives the scraper (52) to slide away from the conveyor belt (2).

5. The mobile high-precision intelligent belt quantitative feeder according to claim 3 is characterized in that: The bottom of the upper hopper (3) is conical, the first lower material plate (42) and the second lower material plate (43) are both located at the bottom of the vertical part of the upper hopper (3), and a stirring assembly (6) is arranged inside the conical bottom of the upper hopper (3), the stirring assembly (6) comprises a first stirring part (61), the first stirring part (61) comprises a bidirectional telescopic rod (611) and a first stirring rod (612), and the two movable ends of the bidirectional telescopic rod (611) are both fixedly connected to a slide plate (61 11), a slide plate (6111) is slidably arranged on the conical bottom of the upper hopper (3) along the inclined direction of the conical bottom of the upper hopper (3), a plurality of first stirring rods (612) are arranged along the circumferential direction and the telescopic direction of the bidirectional telescopic rod (611), the first stirring rod (612) is fixed on the rod body of the bidirectional telescopic rod (611), and when the movable end of the bidirectional telescopic rod (611) is telescoped, the rod body of the bidirectional telescopic rod (611) rotates relative to the movable end.

6. The mobile high-precision intelligent belt quantitative feeder according to claim 5, characterized in that: The two movable ends of the bidirectional telescopic rod (611) are located in one end of the rod body and are both fixedly connected to a stirring block (6112). The stirring block (6112) is slidably arranged in a spiral groove (6113) provided on the inner side wall of the bidirectional telescopic rod (611).

7. The mobile high-precision intelligent belt quantitative feeder according to claim 5, characterized in that: The telescopic direction of the bidirectional telescopic rod (611) is parallel to the conveying direction of the conveying belt (2); the slide plate (6111) is fixedly connected with a slider (6114); the slider (6114) is slidably arranged in a first slide hole (31) provided on the upper hopper (3); the stirring assembly (6) further comprises a second stirring part (62); the second stirring part (62) comprises a connecting rod (621) and a second stirring rod (622); Two connecting rods (621) and two second stirring rods (622) are provided, and they correspond one to one. The two connecting rods (621) are symmetrically arranged on both sides of the conveying direction of the conveying belt (2) and are arranged at an angle. One end of the connecting rod (621) is ball-hinged on a slider (6114) close to the material guide trough (51), and the other end is ball-hinged with one end of the second stirring rod (622). The second stirring rod (622) is located between the material guide trough (51) and the conveying belt (2). One end of the second stirring rod (622) close to the connecting rod (621) is slidably arranged in a second sliding hole (511) opened on the material guide trough (51).

8. The mobile high-precision intelligent belt quantitative feeder according to claim 7, characterized in that: The slide plate (6111) always covers the first slide hole (31) during the sliding process.

9. The mobile high-precision intelligent belt quantitative feeder according to claim 7, characterized in that: The slider (6114) away from the material guide trough (51) is connected to a transmission part (63), and the transmission part (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). 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 conveying bracket (1), and the conveying belt (2) is squeezed on the conveying roller (21).

10. The mobile high-precision intelligent belt quantitative feeder according to claim 9, characterized in that: Anti-slip grooves (6312) are provided on the side walls of the driving roller (631).

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