Powder weighing and conveying device

Abstract

The invention relates to a powder weighing and conveying device which is mainly used for loading, unloading, transporting, weighing and proportioning materials. According to the technical scheme, the device comprises a material storage bin, a weighing sensor, a material mixing bin 9 and a rack, a top plate is arranged at the top of the rack and used for installing the material storage bin, a plurality of feeding pipelines are arranged on one side of the upper portion of the material storage bin and communicated with a material suction fan, and stop valves are arranged at the positions, communicated with the material storage bin, of the feeding pipelines; a weighing sensor is arranged at the lower part of the storage bin and is used for weighing materials in the storage bin; an outlet is formed in the lower portion of the discharging bin, a weighing stop valve is arranged at the position of the outlet, the outlet is communicated with a mixing bin 9, a stirring mechanism is arranged in the mixing bin, a discharging stop valve is arranged on the lower portion of the mixing bin, the weighing stop valve is provided with an upper branch air cylinder drive, and the discharging stop valve is provided with a lower branch air cylinder drive. The working efficiency is improved, the limitation of weather environment to transportation is reduced, the pollution of transportation to the environment is reduced, and the material loss is reduced.

Description

Technical Field

[0001] The invention relates to a powder material weighing and conveying device, which is mainly used for material loading and unloading, transportation, material weighing and proportioning. Background Art

[0002] At present, the conveying of powder materials is carried out by belt conveyor, which is affected by environmental factors. For example, it is impossible to work outdoors due to weather. In addition, dust from powder transportation causes serious environmental pollution. The materials will also be seriously damaged. Belt conveyors are suitable for working in a closed environment. When loading and unloading powder materials, the materials need to be weighed separately. This increases a large part of the cost. Summary of the invention

[0003] In view of the above problems, the present invention provides a powder weighing and conveying device to solve the weighing and environmental pollution problems during powder conveying.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: comprising a storage bin, a weighing sensor, a mixing bin 9 and a frame, a top plate is arranged on the top of the frame for installing the storage bin, a plurality of feed pipes are arranged on one side of the upper part of the storage bin, the feed pipes are connected to the suction fan, a stop valve is arranged at the position where the feed pipes are connected to the storage bin, a weighing sensor is arranged at the lower part of the storage bin, and the weighing sensor weighs the material in the storage bin; An outlet is arranged at the lower part of the discharging bin, a weighing stop valve is arranged at the outlet position, the outlet leads to the mixing bin 9, a stirring mechanism is arranged in the mixing bin, a discharging stop valve is arranged at the lower part of the mixing bin, the weighing stop valve is arranged to be driven by an upper cylinder, and the discharging stop valve is arranged to be driven by a lower cylinder.

[0005] According to the powder weighing and conveying device, the storage bin is arranged at one end of the frame, the feeding direction of the feeding pipe cuts into the circular storage bin, and the lower part of the mixing bin is connected to the feeding cylinder.

[0006] According to the powder weighing and conveying device, it also includes a dust removal device, which includes a dust suction pipe and a dust exhaust pipe. One end of the dust suction pipe is connected to the top of the storage bin, and the other end of the dust suction pipe is connected to the air inlet of the fan, and the air outlet of the fan is connected to the dust exhaust pipe.

[0007] According to the powder weighing and conveying device, the frame is composed of four columns, a top plate is placed on the top of the four columns, and two cross beams are arranged on one side of the frame close to the lower end.

[0008] According to the powder weighing and conveying device, the upper cylinder and the lower cylinder are arranged in pairs.

[0009] According to the powder weighing and conveying device, the air inlet end of the lower cylinder is connected to the electromagnetic reversing valve A, and the air inlet end of the upper cylinder is connected to the electromagnetic reversing valve B. The electromagnetic reversing valve A and the electromagnetic reversing valve B9 are connected to the air source control electromagnetic valve through a three-way connection, and the air source control electromagnetic valve is connected to the high-pressure air source.

[0010] According to the powder weighing and conveying device, the weighing sensor is connected to the input end of the PLC through a digital-to-analog conversion module, and the input end of the PLC is connected to the suction fan start switch K2, the suction fan stop switch K3, the dust removal start switch K4, the dust removal stop switch K5, the upper cylinder push-out switch K6, the upper cylinder return switch K7, the lower cylinder push-out switch K, the lower cylinder return switch K9 and the emergency stop switch K10, and the output end of the PLC is connected to the suction fan contactor J1, the dust removal device contactor J2, the electromagnetic reversing valve A contactor J3, the electromagnetic reversing valve A contactor J4, the electromagnetic reversing valve B contactor J5 and the electromagnetic reversing valve B contactor J6.

[0011] According to the powder weighing and conveying device, the suction fan start switch K2, the suction fan stop switch K3 and the suction fan contactor J1 are interlocked, and the dust removal start switch K4, the dust removal stop switch K5 and the dust removal device contactor J2 are interlocked. The upper cylinder push-out switch K6 and the electromagnetic reversing valve A contactor J3 interlock to control the upper cylinder push-out, the upper cylinder return switch K7 and the electromagnetic reversing valve A contactor J4 control the upper cylinder return, the lower cylinder push-out switch K and the electromagnetic reversing valve B contactor J5 interlock to control the lower cylinder push-out, and the lower cylinder return switch K9 and the electromagnetic reversing valve B contactor J6 interlock to control the lower cylinder return.

[0012] Advantages of this device: Increase work efficiency, reduce the restrictions of weather environment on transportation, the use of PLC always works in the best working conditions, reduce the pollution of transportation to the environment, reduce material loss, reduce material weighing and manual workload, and reduce costs.

[0013] Reduce the labor intensity of workers, reduce material loss and cost, facilitate transportation in harsh environments, and accurately weigh materials. This weighing and transportation device is designed to use fans, pipes and weighing devices to reduce material loss, accurately weigh materials, and make transportation work in the best working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is the pneumatic principle diagram of the present invention. Figure 4 It is a circuit schematic diagram of the present invention.

[0015] In the figure: 1. Storage bin; 2. Frame; 21. Column; 22. Top plate; 23. Crossbeam; 3. Feed pipe; 4. Suction fan; 5. Mixing bin; 6. Weighing sensor; 7. Upper cylinder; 8. High-pressure air source; 9. Lower cylinder; 10. Feed barrel; 11. Air source control solenoid valve; 12. Solenoid reversing valve A; 13. Solenoid reversing valve B; 14. Dust suction pipe; 15. Dust removal fan; 16. Dust exhaust pipe; 17. Discharge stop valve; 18. Weighing stop valve. DETAILED DESCRIPTION

[0016] The specific details of the present invention are further described below: The powder weighing and conveying device of the present invention comprises a storage bin 1, a weighing sensor 6, a mixing bin 5 and a frame 2. A top plate 22 is provided on the top of the frame 2 for installing the storage bin 1. A plurality of feed pipes 3 are provided on one side of the upper part of the storage bin 1. The feed pipes 3 are connected to a suction fan 4. A stop valve is provided at the position where the feed pipes 3 are connected to the storage bin 1. A weighing sensor 6 is provided at the lower part of the storage bin 1. The weighing sensor 6 weighs the material in the storage bin 1.

[0017] An outlet is arranged at the lower part of the discharging bin, a weighing stop valve is arranged at the outlet position, the outlet leads to the mixing bin 5, a stirring mechanism is arranged in the mixing bin 5, a discharging stop valve is arranged at the lower part of the mixing bin 5, the weighing stop valve is arranged to be driven by an upper cylinder 7, and the discharging stop valve is arranged to be driven by a lower cylinder 9. The upper cylinder 7 and the lower cylinder 9 are arranged in pairs.

[0018] The rack 2 is composed of four columns 21, a top plate 22 is placed on the top of the four columns 21, and two cross beams 23 are arranged on one side of the rack 2 near the lower end for placing the PLC control cabinet.

[0019] The material storage bin 1 is arranged at one end of the frame 2 , the feeding direction of the feeding pipe 3 is intersecting with the circular material storage bin 1 , and the lower part of the mixing bin 5 is connected to the feeding cylinder 10 .

[0020] The air inlet end of the lower air cylinder 9 is connected to the electromagnetic reversing valve A12, and the air inlet end of the upper air cylinder 7 is connected to the electromagnetic reversing valve B13. The electromagnetic reversing valve A12 and the electromagnetic reversing valve B13 are connected to the air source control electromagnetic valve 11 through a three-way connection, and the air source control electromagnetic valve 11 is connected to the high-pressure air source.

[0021] It also includes a dust removal device, which includes a dust suction pipe 14 and a dust exhaust pipe 16. One end of the dust suction pipe 14 is connected to the top of the storage bin 1, and the other end of the dust suction pipe 14 is connected to the air inlet of the fan, and the air outlet of the fan is connected to the dust exhaust pipe 16.

[0022] When the material is sucked into the storage bin, floating dust is formed in the material bin, and the dust suction pipe 14 sucks the dust away to achieve the purpose of dust removal.

[0023] Specifically, the fan duct 20 is configured as a detachable duct 24 and a feed port 25. The duct is assembled using finished parts and can be connected to the duct through a soft connection, which is convenient for movement and cleaning.

[0024] Specifically, the upper cylinder at the bottom of the mixing bin controls the opening of the weighing stop valve, weighing when closed and releasing the material into the mixing bin when opened.

[0025] The air inlet end of the lower air cylinder 9 is connected to the electromagnetic reversing valve A12, and the air inlet end of the upper air cylinder 7 is connected to the electromagnetic reversing valve B13. The electromagnetic reversing valve A12 and the electromagnetic reversing valve B13 are connected to the air source control electromagnetic valve 11 through a three-way connection, and the air source control electromagnetic valve 11 is connected to the high-pressure air source.

[0026] In this device, the weighing sensor is connected to the input end of the PLC through a digital-to-analog conversion module, and the input end of the PLC is connected to the suction fan start switch K2, the suction fan stop switch K3, the dust removal start switch K4, the dust removal stop switch K5, the upper cylinder push-out switch K6, the upper cylinder return switch K7, the lower cylinder push-out switch K, the lower cylinder return switch K9 and the emergency stop switch K10.

[0027] The output end of the PLC is connected to the suction fan contactor J1, the dust removal device contactor J2, the electromagnetic reversing valve A contactor J3, the electromagnetic reversing valve A contactor J4, the electromagnetic reversing valve B contactor J5 and the electromagnetic reversing valve B contactor J6.

[0028] The suction fan start switch K2, suction fan stop switch K3 and suction fan contactor J1 are interlocked, and the dust removal start switch K4, dust removal stop switch K5 and dust removal device contactor J2 are interlocked. The upper cylinder push switch K6 and electromagnetic reversing valve A contactor J3 interlock to control the upper cylinder push, the upper cylinder return switch K7 and electromagnetic reversing valve A contactor J4 control the upper cylinder return, the lower cylinder push switch K and electromagnetic reversing valve B contactor J5 interlock to control the lower cylinder push, and the lower cylinder return switch K9 and electromagnetic reversing valve B contactor J6 interlock to control the lower cylinder return.

[0029] This device weighs the conveyor in the equipment content. Compared with using different containers for transportation and weighing, it can improve work efficiency and reduce the restrictions of weather environment on transportation. The PLC of this device always works in the best working condition, reducing the pollution of transportation to the environment, reducing material loss, reducing material weighing and labor workload, and reducing costs.

Claims

1. A powder weighing and conveying device, characterized in that: It comprises a material storage bin (1), a weighing sensor (6), a mixing bin (5) and a frame (2), wherein a top plate (22) is arranged on the top of the frame (2) for mounting the material storage bin (1), a plurality of feed pipes (3) are arranged on one side of the upper part of the material storage bin (1), the feed pipes (3) are connected to a suction fan (4), a stop valve is arranged at a position where the feed pipes (3) are connected to the material storage bin (1), a weighing sensor (6) is arranged at the lower part of the material storage bin (1), and the weighing sensor (6) weighs the material in the material storage bin (1); An outlet is arranged at the lower part of the discharge bin, a weighing stop valve is arranged at the outlet position, the outlet leads to a mixing bin (5), a stirring mechanism is arranged in the mixing bin (5), a discharge stop valve is arranged at the lower part of the mixing bin (5), the weighing stop valve is arranged to be driven by an upper cylinder (7), and the discharge stop valve is arranged to be driven by a lower cylinder (9).

2. The powder weighing and conveying device according to claim 1 is characterized in that: The material storage bin (1) is arranged at one end of the frame (2), the feeding direction of the feeding pipe (3) is intersecting with the circular material storage bin (1), and the lower part of the mixing bin (5) is connected to the feeding cylinder (10).

3. The powder weighing and conveying device according to claim 1 is characterized in that: It also includes a dust removal device, which includes a dust suction pipe (14) and a dust exhaust pipe (16), one end of the dust suction pipe (14) is connected to the top of the storage bin (1), the other end of the dust suction pipe (14) is connected to the air inlet of the fan, and the air outlet of the fan is connected to the dust exhaust pipe (16).

4. The powder weighing and conveying device according to claim 1 is characterized in that: The frame (2) is composed of four upright posts (21), a top plate (22) is placed on the top of the four upright posts (21), and two cross beams (23) are arranged on one side of the frame (2) close to the lower end.

5. The powder weighing and conveying device according to claim 1 is characterized in that: The upper cylinder (7) and the lower cylinder (9) are arranged in pairs.

6. The powder weighing and conveying device according to claim 1, characterized in that: The air inlet end of the lower air cylinder (9) is connected to the electromagnetic reversing valve A (12), the air inlet end of the upper air cylinder (7) is connected to the electromagnetic reversing valve B (13), the electromagnetic reversing valve A (12) and the electromagnetic reversing valve B (13) are connected to the air source control electromagnetic valve (11) through a three-way connection, and the air source control electromagnetic valve (11) is connected to a high-pressure air source.

7. According to the powder weighing and conveying device, the weighing sensor (6) is connected to the input end of the PLC through a digital-to-analog conversion module. The input end of the PLC is connected to the suction fan (4) start switch K2, the suction fan (4) stop switch K3, the dust removal start switch K4, the dust removal stop switch K5, the upper cylinder (7) push-out switch K6, the upper cylinder (7) return switch K7, the lower cylinder (9) push-out switch K, the lower cylinder (9) return switch K9 and the emergency stop switch K10. The output end of the PLC is connected to the suction fan (4) contactor J1, the dust removal device contactor J2, the electromagnetic reversing valve A (12) contactor J3, the electromagnetic reversing valve A (12) contactor J4, the electromagnetic reversing valve B (13) contactor J5 and the electromagnetic reversing valve B (13) contactor J6.

8. According to the powder weighing and conveying device, the suction fan (4) start switch K2, the suction fan (4) stop switch K3 and the suction fan (4) contactor J1 are interlocked, and the dust removal start switch K4, the dust removal stop switch K5 and the dust removal device contactor J2 are interlocked. The upper cylinder (7) push-out switch K6 and the electromagnetic reversing valve A (12) contactor J3 interlock to control the upper cylinder (7) to push out, the upper cylinder (7) return switch K7 and the electromagnetic reversing valve A (12) contactor J4 control the upper cylinder (7) to return, the lower cylinder (9) push-out switch K and the electromagnetic reversing valve B (13) contactor J5 interlock to control the lower cylinder (9) to push out, and the lower cylinder (9) return switch K9 and the electromagnetic reversing valve B (13) contactor J6 interlock to control the lower cylinder (9) to return.

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