Belt quantitative feeding device

Abstract

This utility model relates to a belt conveyor for quantitative feeding, comprising a belt conveyor, a feeding frame at the initial position of the belt conveyor in the conveying direction, the top and bottom of the feeding frame being open; a support frame is provided below the belt conveyor, and weighing sensors are installed between the belt conveyor frame and the support frame, with the weighing sensors located at the four corners of the belt conveyor frame; the feeding frame is fixed to the support frame via a connecting frame, and a valve plate is provided on the side wall of the feeding frame; a groove is formed on the side wall of one end of the feeding frame in the length direction for the valve plate to slide horizontally, and the valve plate slides along the groove via a sliding assembly; the two side walls of the valve plate in the width direction are in contact with the two side walls of the feeding frame in the width direction, forming a discharge space for material to pass through between the valve plate and the inner wall of the feeding frame. The feeding device of this application can monitor and control the feeding amount in real time, improving the material handling efficiency of the production line.

Description

Technical Field

[0001] This utility model relates to the field of feeding mechanisms, and in particular to a belt quantitative feeding device. Background Technology

[0002] In production lines for powder, coal, metallurgy, mining, mortar, and solid waste treatment, the amount of material fed is directly related to the treatment effect. It is necessary to monitor and control the amount of material fed in real time. Therefore, a belt feeder capable of monitoring and controlling the amount of material fed in real time is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides a belt quantitative feeding device.

[0004] The belt quantitative feeding device provided in this application adopts the following technical solution: A belt-driven quantitative feeding device includes a belt conveyor, wherein a feeding frame is provided at the initial position of the belt conveyor in the conveying direction, and the top and bottom of the feeding frame are both open. A support frame is provided below the belt conveyor, and a weighing sensor is provided between the frame of the belt conveyor and the support frame. The weighing sensor is located at the four corners of the belt conveyor frame. The feeding frame is fixed to the support frame via a connecting frame. A valve plate is provided on the side wall of the feeding frame. A sliding groove for the valve plate to slide horizontally is opened on the side wall at one end of the feeding frame along the length direction. The valve plate slides along the sliding groove via a sliding assembly. The two side walls of the valve plate in the width direction are in contact with the two side walls of the feeding frame in the width direction. A feeding space for material to pass through is formed between the valve plate and the inner wall of the feeding frame.

[0005] Preferably, the sliding assembly includes a cylinder and an auxiliary rod, and two cylinders and two auxiliary rods are provided. The cylinders are fixedly connected to the side walls on both sides of the width direction of the feeding frame. One end of the auxiliary rod is fixedly connected to the corresponding cylinder piston rod, and the other end of the auxiliary rod is fixedly connected to the part of the valve plate located outside the feeding frame. An industrial control computer is installed next to the feeding device. The industrial control computer is equipped with a PLC control system. The four weighing sensors send the detected weight increase value to the PLC control system. The PLC control system takes the average value of the weight increase value and controls the extension and retraction of the piston rod of the cylinder according to the set feeding amount. When the actual feeding amount is greater than the set feeding amount, the piston rod of the cylinder retracts to reduce the feeding space. When the actual feeding amount is less than the set feeding amount, the piston rod of the cylinder extends to expand the feeding space.

[0006] Preferably, a sealing groove is provided on one side of the chute near the inside of the feeding frame. The sealing groove is located on both sides in the thickness direction of the valve plate. A sealing strip is fixedly installed in the sealing groove, and the sealing strip is sealed and fitted to the valve plate.

[0007] Preferably, a stirring roller is provided inside the feeding frame, and stirring blades are provided on the peripheral sidewall of the stirring roller. Multiple sets of stirring blades are equidistantly arranged along the axial direction of the stirring roller, and multiple stirring blades are equidistantly arranged in each set along the circumferential direction of the stirring roller. The two ends of the stirring roller extend beyond the feeding frame in the length direction. The stirring roller is rotatably connected to the sidewall of the feeding frame through bearings. A rotating assembly for rotating the stirring roller is provided on the feeding frame.

[0008] Preferably, the rotating assembly includes a motor, a first gear, a second gear, and a synchronous toothed belt. The motor is fixedly mounted on the side wall of the feeding frame via a mounting bracket. The first gear is coaxially connected to the output shaft of the motor, and the second gear is coaxially connected to the stirring shaft. The synchronous toothed belt is simultaneously sleeved on the first gear and the second gear and kept taut. The synchronous toothed belt meshes with both the first gear and the second gear.

[0009] Preferably, the opening of the feeding frame gradually widens from the direction closest to the belt conveyor to the direction furthest away from the conveyor.

[0010] In summary, this application includes at least one of the following beneficial technical effects: 1. By sliding the valve plate in conjunction with the weighing sensor, the size of the feeding space can be adjusted to achieve real-time monitoring and control of the feeding amount, thereby improving the material handling efficiency of the production line; 2. By setting up the agitator shaft, the material agglomeration is reduced, and the material is evenly fed onto the belt, improving the weighing accuracy. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a belt quantitative feeding device according to an embodiment of this application.

[0012] Figure 2 This is a schematic diagram illustrating the positional layout of the weighing sensor in an embodiment of this application.

[0013] Figure 3 This is a cross-sectional structural diagram of the feed frame used in an embodiment of this application.

[0014] Explanation of reference numerals in the attached drawings: 1. Belt conveyor; 2. Feeding frame; 21. Chute; 22. Sealing groove; 3. Support frame; 4. Connecting frame; 5. Weighing sensor; 6. Valve plate; 61. Sealing strip; 7. Sliding assembly; 71. Cylinder; 72. Auxiliary rod; 8. Agitating roller; 81. Agitating blade; 82. Bearing; 9. Rotating assembly; 91. Motor; 92. First gear; 93. Second gear; 94. Synchronous toothed belt; 95. Mounting frame. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0016] This application discloses a belt quantitative feeding device.

[0017] Reference Figure 1-3 The belt quantitative feeding device includes a belt conveyor 1, and a feeding frame 2 is set at the initial position of the belt conveyor 1 in the conveying direction. The top and bottom of the feeding frame 2 are both open.

[0018] The opening of the feeding frame 2 gradually widens from the direction closest to the belt conveyor 1 to the direction furthest from the conveyor, making it easy to add materials.

[0019] A support frame 3 is installed below the belt conveyor 1, and a weighing sensor 5 is installed between the frame of the belt conveyor 1 and the support frame 3.

[0020] The feeding frame 2 is fixed to the support frame 3 by the connecting frame 4. A valve plate 6 is provided on the side wall of the feeding frame 2. A groove 21 for the valve plate 6 to slide horizontally is opened on the side wall at one end of the length direction of the feeding frame 2. The valve plate 6 slides along the groove 21 through the sliding component 7. The two side walls of the valve plate 6 in the width direction are in contact with the two side walls of the feeding frame 2 in the width direction. A feeding space for material to pass through is formed between the valve plate 6 and the inner wall of the feeding frame 2.

[0021] The sliding assembly 7 includes a cylinder 71 and an auxiliary rod 72. Two cylinders 71 and two auxiliary rods 72 are provided. The cylinder 71 is fixedly connected to the side walls on both sides of the width direction of the feeding frame 2. One end of the auxiliary rod 72 is fixedly connected to the piston rod of the corresponding cylinder 71, and the other end of the auxiliary rod 72 is fixedly connected to the part of the valve plate 6 located outside the feeding frame 2.

[0022] An industrial control computer is installed next to the feeding device. The industrial control computer is equipped with a PLC control system. The four weighing sensors 5 send the detected weight increase value to the PLC control system. The PLC control system takes the average value of the weight increase value and controls the piston rod of cylinder 71 to extend and retract according to the set feeding amount.

[0023] When the actual feeding amount is greater than the set feeding amount, the piston rod of cylinder 71 retracts to reduce the feeding space; when the actual feeding amount is less than the set feeding amount, the piston rod of cylinder 71 extends to expand the feeding space.

[0024] Weighing sensors 5 are installed at the four corners of the frame of belt conveyor 1 to improve the accuracy of weight increase measurement.

[0025] By sliding the valve plate 6 in conjunction with the weighing sensor 5, the size of the feeding space can be adjusted to achieve real-time monitoring and control of the feeding amount, thereby improving the material handling efficiency of the production line.

[0026] A sealing groove 22 is provided on one side of the chute 21 near the inside of the feeding frame 2. The sealing groove 22 is located on both sides of the valve plate 6 in the thickness direction. A sealing strip 61 is fixedly installed in the sealing groove 22. The sealing strip 61 is sealed and fitted with the valve plate 6 to reduce the possibility of material leakage from the valve plate 6.

[0027] A stirring roller 8 is provided inside the feeding frame 2. Stirring blades 81 are provided on the peripheral side wall of the stirring roller 8. Multiple sets of stirring blades 81 are equidistantly arranged along the axial direction of the stirring roller 8, and multiple stirring blades 81 in each set are equidistantly arranged along the circumference of the stirring roller 8.

[0028] The two ends of the stirring roller 8 extend out of the feeding frame 2 along its length. The stirring roller 8 is rotatably connected to the side wall of the feeding frame 2 through the bearing 82. The feeding frame 2 is provided with a rotating assembly 9 for rotating the stirring roller 8.

[0029] The rotating assembly 9 includes a motor 91, a first gear 92, a second gear 93, and a synchronous toothed belt 94. The motor 91 is fixedly mounted on the side wall of the feeding frame 2 via a mounting bracket 95. The first gear 92 is coaxially connected to the output shaft of the motor 91, and the second gear 93 is coaxially connected to the stirring shaft. The synchronous toothed belt 94 is simultaneously sleeved on the first gear 92 and the second gear 93 and kept taut. The synchronous toothed belt 94 meshes with both the first gear 92 and the second gear 93.

[0030] By using a rotating agitator shaft, material aggregation is reduced, allowing the material to be evenly fed onto the conveyor belt, thus further improving weighing accuracy.

[0031] The implementation principle of a belt quantitative feeding device according to an embodiment of this application is as follows: During feeding, the valve plate 6 is first driven to slide to open the feeding space. Then, the size of the feeding space is adjusted by the sliding of the valve plate 6 in conjunction with the weighing sensor 5. When the actual feeding amount is greater than the set feeding amount, the piston rod of the cylinder 71 retracts to reduce the feeding space. When the actual feeding amount is less than the set feeding amount, the piston rod of the cylinder 71 extends to expand the feeding space, thereby realizing real-time monitoring and control of the feeding amount.

[0032] 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 belt-driven quantitative feeding device, characterized in that: Includes a belt conveyor, wherein a feeding frame is provided at the initial position of the belt conveyor in the conveying direction, and the top and bottom of the feeding frame are both open; A support frame is provided below the belt conveyor, and a weighing sensor is provided between the frame of the belt conveyor and the support frame. The weighing sensor is located at the four corners of the belt conveyor frame. The feeding frame is fixed to the support frame via a connecting frame. A valve plate is provided on the side wall of the feeding frame. A sliding groove for the valve plate to slide horizontally is opened on the side wall at one end of the feeding frame along the length direction. The valve plate slides along the sliding groove via a sliding assembly. The two side walls of the valve plate in the width direction are in contact with the two side walls of the feeding frame in the width direction. A feeding space for material to pass through is formed between the valve plate and the inner wall of the feeding frame.

2. The belt quantitative feeding device according to claim 1, characterized in that: The sliding assembly includes a cylinder and an auxiliary rod, and two cylinders and two auxiliary rods are provided. The cylinders are fixedly connected to the side walls on both sides of the width direction of the feeding frame. One end of the auxiliary rod is fixedly connected to the corresponding cylinder piston rod, and the other end of the auxiliary rod is fixedly connected to the part of the valve plate located outside the feeding frame. An industrial control computer is installed next to the feeding device. The industrial control computer is equipped with a PLC control system. The four weighing sensors send the detected weight increase value to the PLC control system. The PLC control system takes the average value of the weight increase value and controls the extension and retraction of the piston rod of the cylinder according to the set feeding amount. When the actual feeding amount is greater than the set feeding amount, the piston rod of the cylinder retracts to reduce the feeding space. When the actual feeding amount is less than the set feeding amount, the piston rod of the cylinder extends to expand the feeding space.

3. The belt quantitative feeding device according to claim 1, characterized in that: A sealing groove is provided on one side of the chute near the inside of the feeding frame. The sealing groove is located on both sides in the thickness direction of the valve plate. A sealing strip is fixedly installed in the sealing groove, and the sealing strip is sealed and fitted to the valve plate.

4. The belt quantitative feeding device according to claim 1, characterized in that: The feeding frame is equipped with a stirring roller, and the circumferential sidewall of the stirring roller is equipped with stirring blades. Multiple sets of stirring blades are equidistantly arranged along the axial direction of the stirring roller, and multiple stirring blades are equidistantly arranged along the circumferential direction of the stirring roller in each set. The two ends of the stirring roller extend beyond the feeding frame in the length direction. The stirring roller is rotatably connected to the sidewall of the feeding frame through bearings. The feeding frame is equipped with a rotating assembly for rotating the stirring roller.

5. The belt metering device according to claim 4, characterized in that: The rotating assembly includes a motor, a first gear, a second gear, and a synchronous toothed belt. The motor is fixedly mounted on the side wall of the feeding frame via a mounting bracket. The first gear is coaxially connected to the output shaft of the motor, and the second gear is coaxially connected to the stirring shaft. The synchronous toothed belt is simultaneously sleeved on the first gear and the second gear and kept taut. The synchronous toothed belt meshes with both the first gear and the second gear.

6. The belt quantitative feeding device according to claim 1, characterized in that: The opening of the feeding frame gradually widens from the direction closest to the belt conveyor to the direction furthest away from the conveyor.

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