Static weighing continuous conveying feeder control system

Abstract

The utility model relates to the technical field of feeders, in particular to a static weighing continuous conveying feeder control system which comprises a weighing unit and a discharging unit, support units are arranged on the two sides of the outer wall of the top of the weighing unit, and conveying units are arranged in the support units. A plurality of reflection units distributed at equal intervals are arranged outside the conveying unit, two sensor modules are installed on the inner wall of one side of the support unit through bolts, the discharging unit is located above the support unit, and a control unit is installed on the outer wall of one side of the support unit through bolts. When the unloading unit unloads materials, the weighing unit can accurately weigh the materials on the conveying unit, continuous weighing of the feeder in a static state is achieved, an accurate weighing numerical value can be obtained, the accuracy fed back to the control unit by the feeder is improved, the control unit can accurately control the feeder to operate, and the feeding efficiency is improved. And the problems of poor feeding precision and the like during feeding are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeders, in particular to a static weighing continuous conveying feeder control system. Background Art

[0002] With the in-depth application of automation control technology in agriculture, animal husbandry, industry and other industries, the industry's requirements for the precision and efficiency of feeding are constantly increasing. As one of the most widely used mechanical devices, weighing feeder is used to transport useful raw materials and is an intermediate material transfer device.

[0003] Chinese patent number CN203606016U provides an automatic weighing feeder, which includes a material tank and a weighing feeder. When in use, first insert the two forks in front of the forklift into the fork hole channel on the material tank, and then place the material tank filled with mud on the weighing feeder. At this time, the discharge valve top opening device causes the discharge valve and the cutter to move upward under the control of the guide device, and the agglomerated mud is cut by the cutter and flows into the weighing feeder below; the operator sets the value on the control box in advance, and then presses the start button, at this time, the frequency conversion motor starts, the mud enters the screw conveyor evenly after being stirred by the stirrer, and flows out from the discharge port into the container on the pallet. When the weight of the mud in the container is close to the set value, the speed of the frequency conversion motor is reduced, and the feeding speed is slowed down to improve the weighing accuracy (the feeding speed is set in advance). When the weight of the mud in the container reaches the set value, the frequency conversion motor automatically cuts off the power and stops outputting the mud. At the same time, the pneumatic plug device extends to prevent the mud from sliding, completing a weighing work cycle. The utility model has the advantages of high weighing precision, high efficiency, less manpower and low labor intensity.

[0004] Most weighing feeder control systems control the feeder based on the data feedback from the feeder. However, most existing feeders are dynamic feeders. The weighing accuracy of the weighing roller is poor when the feeder is running and weighing. As a result, when the feeder control system controls the feeder based on the weighing results of the weighing roller, problems such as poor feeding accuracy are easily generated. Therefore, it is urgent to develop a static weighing continuous conveying feeder control system. Utility Model Content

[0005] The utility model aims to provide a static weighing continuous conveying feeder control system to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A static weighing continuous conveying feeder control system comprises a weighing unit and a discharge unit, wherein bracket units are arranged on both sides of the top outer wall of the weighing unit, and a conveying unit is arranged inside the bracket unit, and a plurality of reflection units distributed in an equidistant structure are arranged outside the conveying unit, two sensor modules are installed on the inner wall of one side of the bracket unit by bolts, the discharge unit is located above the bracket unit, and a control unit is installed on the outer wall of one side of the bracket unit by bolts, and the control unit is electrically connected to the discharge unit, the weighing unit and the sensor module respectively through wires.

[0008] Furthermore, the weighing unit is one of a floor scale and a weighing sensor array.

[0009] Furthermore, the bracket unit is formed by welding a plurality of square tubes and two metal baffle plates.

[0010] Furthermore, the conveying unit is a belt-type structure, and is specifically composed of an electric roller, a common roller, a plurality of supporting rollers and a belt.

[0011] Furthermore, the reflection unit is one of a reflective sticker and a reflective plate, and the reflection unit is bonded to the conveying unit by glue, and a material storage area can be formed between two adjacent reflection units.

[0012] Furthermore, the sensor module is an optical sensor, and the sensor module is composed of an optical transmitter and an optical receiver, and the unloading unit is one of a star-shaped unloader and a vibrating feeder.

[0013] Furthermore, the control unit includes an operation panel, a display screen, a signal module, a PLC unit, and a frequency conversion unit, and the operation panel and the display screen are welded on the same circuit board.

[0014] Furthermore, the signal module is one of a Bluetooth and WiFi router, the PLC unit is an editable PLC controller, and the PLC unit is electrically connected to the operation panel, display screen, signal module, and frequency conversion unit through wires. The frequency conversion unit adopts a frequency converter, and the frequency converter is mainly composed of a rectifier AC to DC, a filter, an inverter DC to AC, a braking unit, a drive unit, and a detection unit microprocessor unit.

[0015] Furthermore, when conveying materials, the conveying unit transmits the rotation speed data to the PLC unit in the control unit, and then the PLC unit controls the operation of the frequency conversion unit in the control unit, thereby adjusting the discharge flow of the discharge unit.

[0016] In the above technical scheme, the utility model provides a static weighing continuous conveying feeder control system, (1) the weighing unit designed by the utility model can accurately weigh the material on the conveying unit when the unloading unit is unloading, thereby realizing the continuous weighing of the feeder in a static state, and being able to obtain an accurate weighing value, thereby improving the accuracy of the feeder feedback to the control unit, so that the control unit can accurately control the operation of the feeder and avoid problems such as poor feeding accuracy during feeding; (2) the reflection unit and sensor module designed by the utility model can form a material storage area between two adjacent reflection units , in conjunction with the sensor module, the unloading unit can be controlled, and by adjusting the conveying unit speed and the unloading flow rate of the unloading unit, materials of a certain weight can fall into the material storage area formed by two adjacent reflective units. In conjunction with the weighing unit, the double judgment of the quantitative feeding of the feeder is realized, the feeding accuracy of the feeder is improved, and the recognition basis for the control of the control unit is provided; (3) The control unit designed by the utility model can automatically control according to the operating status of the conveying unit and receive information such as the working status of the frequency conversion unit and the unloading unit, thereby reducing human resources and achieving the purpose of automatic feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the control unit of the present invention;

[0020] Figure 3 is a control flow chart of the present invention;

[0021] Figure 4 It is a flow chart of the method of the present invention.

[0022] Description of reference numerals:

[0023] 1. Weighing unit; 2. Bracket unit; 3. Conveying unit; 4. Reflection unit; 5. Sensor module; 6. Discharging unit; 7. Control unit. Implementation

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1-3 As shown, a static weighing continuous conveying feeder control system provided by an embodiment of the utility model includes a weighing unit 1 and a discharging unit 6. Bracket units 2 are arranged on both sides of the top outer wall of the weighing unit 1, and a conveying unit 3 is arranged inside the bracket unit 2. A plurality of reflective units 4 distributed in an equidistant structure are arranged outside the conveying unit 3. Two sensor modules 5 are installed on the inner wall of one side of the bracket unit 2 by bolts. The discharging unit 6 is located above the bracket unit 2. A control unit 7 is installed on the outer wall of one side of the bracket unit 2 by bolts, and the control unit 7 is electrically connected to the discharging unit 6, the weighing unit 1, and the sensor module 5 through wires.

[0026] Specifically, in this embodiment, a weighing unit 1 and a discharge unit 6 are included. Bracket units 2 are provided on both sides of the top outer wall of the weighing unit 1, and a conveying unit 3 is provided inside the bracket unit 2. A plurality of reflecting units 4 with equidistant structures are provided outside the conveying unit 3. Two sensor modules 5 are installed on the inner wall of one side of the bracket unit 2 by bolts. The discharge unit 6 is located above the bracket unit 2. A control unit 7 is installed on the outer wall of one side of the bracket unit 2 by bolts, and the control unit 7 is electrically connected to the discharge unit 6, the weighing unit 1, and the sensor module 5 by wires. The weighing unit 1 is a floor scale. The bracket unit 2 is composed of a plurality of square tubes and two metal baffle plates welded together. The conveying unit 3 is a belt-type structure, and is specifically composed of an electric roller, an ordinary roller, a plurality of support rollers and a belt. The reflecting unit 4 is an infrared reflecting plate, and the reflecting Unit 4 is bonded to conveying unit 3 by glue, a material storage area can be formed between two adjacent reflection units 4, sensor module 5 is an optical sensor, and sensor module 5 is composed of an optical transmitter and an optical receiver, unloading unit 6 is a star-shaped unloader, control unit 7 includes operation panel, display screen, signal module, PLC unit, frequency conversion unit, operation panel and display screen are welded on the same circuit board, signal module is one of Bluetooth and WiFi router, PLC unit is an editable PLC controller, and PLC unit is electrically connected with operation panel, display screen, signal module and frequency conversion unit through wires, frequency conversion unit adopts frequency converter, and frequency converter is mainly composed of rectification AC to DC, filtering, inverter DC to AC, braking unit, drive unit, detection unit microprocessor unit.

[0027] The utility model provides a static weighing continuous conveying feeder control system. When the unloading unit 6 is unloading, the weighing unit 1 can accurately weigh the material on the conveying unit 3, thereby realizing continuous weighing of the feeder in a static state, and being able to obtain an accurate weighing value, thereby improving the accuracy of the feeder feedback to the control unit, so that the control unit can accurately control the operation of the feeder and avoid problems such as poor feeding accuracy during feeding.

[0028] In one embodiment of the present invention, the conveying unit 3 transmits the rotation speed data to the PLC unit in the control unit 7 when conveying materials, and then the PLC unit controls the operation of the frequency conversion unit in the control unit 7 to adjust the discharge flow of the discharge unit 6.

[0029] A static weighing continuous conveying feeder working method, such as Figure 4 As shown, the following steps are included:

[0030] S1. Start-up: The operation control unit 7 controls the conveying unit 3, the weighing unit 1, the sensor module 5 and the unloading unit 6 to start up, so that the feeder is in operation;

[0031] S2. Sensing setting: With the movement of the conveying unit 3, the multiple reflecting units 4 will also move. When one of the reflecting units 4 passes by the sensor module 5 on the left side of the unloading unit 6, the reflecting unit 4 will reflect the light emitted by the sensor module 5, and then the reflected light will be received by the sensor module 5. Then the control unit 7 will control the unloading unit 6 to operate according to the detection result of the sensor module 5, so that the unloading unit 6 starts to unload, and when the sensor module 5 located on the right side of the unloading unit 6 detects another reflecting unit 4, the unloading unit 6 will stop moving, and then the amount of material unloaded by the unloading unit 6 is determined according to the detection of the weighing unit 1, and then the speed of the conveying unit 3 and the unloading speed of the unloading unit 6 are adjusted according to the amount, so that a certain amount of material is evenly laid in the storage interval formed by the two adjacent reflecting units 5;

[0032] S3. Unloading and weighing: After the above process is adjusted, the control unit 7 can continue to be operated to enable the equipment to perform feeding processing. When the unloading unit 6 unloads in this process, the conveying unit 3 will move with the material, so that the material falling from the unloading unit 6 is spread flat on the conveying unit 3. The weighing unit 1 will weigh in this process. When the weighing value reaches the set value, the unloading unit 6 stops, and the conveying unit 3 continues to operate. The above process is repeated to continue unloading, and the material will be moved out from the other end of the conveying unit 3 as the water supply unit 3 transports it.

[0033] Working principle: The operation control unit 7 controls the conveying unit 3, the weighing unit 1, the sensor module 5 and the unloading unit 6 to start up, so that the feeder starts to operate; with the movement of the conveying unit 3, the multiple reflective units 4 will also move, and when one of the reflective units 4 passes by the sensor module 5 on the left side of the unloading unit 6, the reflective unit 4 will reflect the light emitted by the sensor module 5, and then the reflected light will be received by the sensor module 5, and then the control unit 7 will control the unloading unit 6 to operate according to the detection result of the sensor module 5, so that the unloading unit 6 starts to unload, and when the sensor module 5 on the right side of the unloading unit 6 detects another reflective unit 4, the unloading unit 6 will stop moving, and then the unloading unit 6 is determined according to the detection of the weighing unit 1. The amount of material unloaded by element 6, and then the speed of the conveying unit 3 and the unloading speed of the unloading unit 6 are adjusted according to the amount, so that a certain amount of material is evenly laid in the storage interval formed by two adjacent reflecting units 5; after the above process is adjusted, the control unit 7 can continue to be operated to make the equipment perform feeding processing. When the unloading unit 6 unloads in this process, the conveying unit 3 will move with the material, so that the material falling from the unloading unit 6 is spread flat on the conveying unit 3. In this process, the weighing unit 1 will weigh. When the weighing value reaches the set value, the unloading unit 6 stops, and the conveying unit 3 continues to operate. The above process is repeated to continue unloading, and the material will be moved out from the other end of the conveying unit 3 as the water supply unit 3 transports it.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A static weighing continuous conveying feeder control system, characterized in that: The invention comprises a weighing unit (1) and a discharge unit (6), wherein a bracket unit (2) is arranged on both sides of the top outer wall of the weighing unit (1), and a conveying unit (3) is arranged inside the bracket unit (2), and a plurality of reflection units (4) are arranged outside the conveying unit (3) and are distributed in an equidistant structure, and two sensor modules (5) are installed on the inner wall of one side of the bracket unit (2) by bolts, and the discharge unit (6) is located above the bracket unit (2), and a control unit (7) is installed on the outer wall of one side of the bracket unit (2) by bolts, and the control unit (7) is electrically connected to the discharge unit (6), the weighing unit (1), and the sensor module (5) respectively through wires.

2. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The weighing unit (1) is one of a floor scale and a weighing sensor array.

3. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The bracket unit (2) is formed by welding a plurality of square tubes and two metal baffle plates.

4. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The conveying unit (3) is a belt-type structure, and is specifically composed of an electric roller, a common roller, a plurality of supporting rollers and a belt.

5. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The reflective unit (4) is a reflective sticker or a reflective plate, and the reflective unit (4) is bonded to the conveying unit (3) by glue, and a material storage area can be formed between two adjacent reflective units (4).

6. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The sensor module (5) is an optical sensor, and the sensor module (5) is composed of an optical transmitter and an optical receiver. The unloading unit (6) is a star-shaped unloader or a vibrating feeder.

7. A static weighing continuous conveying feeder control system according to claim 1, characterized in that: The control unit (7) comprises an operation panel, a display screen, a signal module, a PLC unit, and a frequency conversion unit. The operation panel and the display screen are welded on the same circuit board.

8. A static weighing continuous conveying feeder control system according to claim 7, characterized in that: The signal module is one of Bluetooth and WiFi routers, the PLC unit is an editable PLC controller, and the PLC unit is electrically connected to the operation panel, display screen, signal module, and frequency conversion unit through wires. The frequency conversion unit adopts a frequency converter, and the frequency converter is mainly composed of a rectifier-AC to DC converter, a filter, an inverter-DC to AC converter, a braking unit, a drive unit, and a detection unit microprocessor unit.

9. A static weighing continuous conveying feeder control system according to claim 7, characterized in that: When conveying materials, the conveying unit (3) transmits the rotation speed data to the PLC unit in the control unit (7), and then the PLC unit controls the operation of the frequency conversion unit in the control unit (7), thereby adjusting the discharge flow rate of the discharge unit (6).

Images