Vacuum suction machine with weighing function

Abstract

The utility model discloses a vacuum material suction machine with a weighing function, and relates to the technical field of material conveying equipment. A plurality of weighing sensors are evenly installed on the periphery of the bottom of the vacuum hopper body and fixed to the machine frame, a material suction opening is formed in the side wall of the vacuum hopper body, a vacuum upper cover is fixed to the upper end of the vacuum hopper body, an air suction opening is connected to the upper portion of the vacuum upper cover, and a plurality of filter elements arranged in a staggered mode are installed in the vacuum upper cover. An air bag is installed on the outer side of the vacuum upper cover and communicated with the interior of the vacuum upper cover through a pipeline provided with a pulse valve. A pneumatic butterfly valve is installed on a discharging nozzle at the bottom of the vacuum hopper body, a flow-aiding blowing pipe is installed on the periphery of the vacuum hopper body and located above the discharging nozzle, a plurality of blowing openings facing the interior of the vacuum hopper body are installed on the flow-aiding blowing pipe, and a beating air hammer is further installed on the side wall of the vacuum hopper body. Dynamic weighing in the material suction process is achieved, materials are accurately controlled, meanwhile, the vacuum pump works stably, discharging is smooth, and the bridging phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically to a vacuum material feeder with weighing function. Background Technology

[0002] Traditional vacuum feeders utilize negative pressure to convey materials, but lack real-time weighing capabilities. This results in material quantity control relying on manual experience or additional weighing equipment, leading to low efficiency and significant errors. Existing vacuum feeders employ components such as level sensors and pneumatic valves, which can assist in material quantity control, but cannot directly achieve dynamic weighing during the feeding process. Therefore, those skilled in the art have developed a vacuum feeder with weighing functionality to address the problems mentioned in the background section. Summary of the Invention

[0003] The purpose of this invention is to provide a vacuum material feeder with weighing function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a frame, weighing sensors, a vacuum bucket, a suction port, a vacuum cover, an air intake port, a filter element, an air tank, a pulse valve, a discharge nozzle, a pneumatic butterfly valve, a flow-assisted jet pipe, and a striking hammer; several weighing sensors are evenly installed around the bottom perimeter of the vacuum bucket, and the weighing sensors are fixed on the frame; a suction port is provided on the side wall of the vacuum bucket; a vacuum cover is fixed to the upper end of the vacuum bucket, and an air intake port is connected to the upper part of the vacuum cover; several staggered filter elements are installed inside the vacuum cover; an air tank is installed on the outside of the vacuum cover, and the air tank is connected to the inside of the vacuum cover through a pipe equipped with a pulse valve; a pneumatic butterfly valve is installed at the discharge nozzle at the bottom of the vacuum bucket; a flow-assisted jet pipe is installed above the discharge nozzle on the outer periphery of the vacuum bucket, and several jet nozzles facing into the vacuum bucket are installed on the flow-assisted jet pipe; a striking hammer is also installed on the side wall of the vacuum bucket.

[0005] Furthermore, the number of weighing sensors is three.

[0006] Furthermore, the filter element is fixed to a hanging plate inside the vacuum cover, and the number of filter elements is at least eight.

[0007] Furthermore, the number of spray nozzles is at least five, and they are evenly distributed on the side wall of the vacuum bucket.

[0008] Furthermore, the impact hammer is located above the flow-assisted jet pipe.

[0009] The beneficial effects of adopting the above structure are as follows: The vacuum feeder with weighing function described in this utility model realizes dynamic weighing during the feeding process, accurately controls the material, and at the same time, the vacuum pump works stably, the material is discharged smoothly, and there is no bridging phenomenon. It has the advantages of high automation, stable accuracy, and convenient maintenance. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the present invention;

[0011] Figure 2 yes Figure 1 Side view;

[0012] Figure 3 yes Figure 1 Top view;

[0013] Figure 4 This is a perspective view of the present invention.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Frame, 2. Weighing sensor, 3. Vacuum hopper, 4. Suction port, 5. Vacuum cover, 6. Air inlet, 7. Filter element, 8. Air tank, 9. Pulse valve, 10. Discharge nozzle, 11. Pneumatic butterfly valve, 12. Flow-aiding jet pipe, 13. Impact hammer, 14. Jet nozzle, 15. Hanging plate, 16. Pipeline, 17. Air hole. Detailed Implementation

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] See as Figure 1 —— Figure 4As shown, this specific embodiment adopts the following technical solution: It includes a frame 1, weighing sensors 2, a vacuum hopper 3, a suction port 4, a vacuum cover 5, an air intake port 6, a filter element 7, an air tank 8, a pulse valve 9, a discharge nozzle 10, a pneumatic butterfly valve 11, a flow-assisted jet pipe 12, and a striking hammer 13; three weighing sensors 2 are evenly installed around the bottom perimeter of the vacuum hopper 3, and the weighing sensors 2 are fixed on the frame 1, using a three-point weighing method to ensure stability; a suction port 4 is provided on the side wall of the vacuum hopper 3, and the suction port 4 is inserted into the material through a material pipe; a vacuum cover 5 is fixed to the upper end of the vacuum hopper 3, and the upper part of the vacuum cover 5 is connected to... The suction port 6 is connected to the vacuum pump. At least eight staggered filter elements 7 are installed on the hanging plate 15 inside the vacuum cover 5. The filter elements 7 pass through the hanging plate 15. When the vacuum pump is working, the negative pressure generated by the filter elements 7 filters out the material and prevents the vacuum pump from being blocked. An air bag 8 is installed on the outside of the vacuum cover 5. The air bag 8 is connected to the inside of the vacuum cover 5 through a pipe 16 with a pulse valve 9. The pipe 16 has air holes 17 corresponding to the position of each filter element 7. When the vacuum pump is working, the air bag 8 is connected to a high-pressure air source. The pulse valve 9 works at certain intervals to blow away the material powder attached to the filter element 7, effectively ensuring the working efficiency of the vacuum pump.

[0018] The discharge nozzle 10 at the bottom of the vacuum hopper 3 is equipped with a pneumatic butterfly valve 11. By opening the pneumatic butterfly valve 11, material is discharged. On the outer periphery of the vacuum hopper 3, above the discharge nozzle 10, a flow-aiding jet pipe 12 is installed. The flow-aiding jet pipe 12 is equipped with several jet nozzles 14 facing into the vacuum hopper 3, which supply external air to the flow-aiding jet pipe 12. Gas is sprayed onto the material at the bottom of the vacuum hopper 3 through the jet nozzles 14 to loosen the material and facilitate better discharge. On the side wall of the vacuum hopper 3, above the flow-aiding jet pipe 12, a striking air hammer 13 is installed. The striking air hammer 13 is used to strike the side wall of the vacuum hopper 3 to prevent material bridging and obstruction of discharge.

[0019] When this invention is in operation, the vacuum pump is turned on, generating negative pressure to draw the material into the vacuum hopper 3. The weighing sensor 2 begins to measure, and at the same time, the dynamic compensation module of the weighing sensor 2 uses an algorithm to eliminate the interference of negative pressure fluctuations on weighing. When the rated weight is reached, the vacuum pump stops working, the pneumatic butterfly valve 11 opens, and the material begins to be discharged. At the same time, the blowing nozzle 14 and the striking hammer 13 work to help the material be discharged better and prevent bridging. When the weighing sensor 2 reaches the set minimum value, the pneumatic butterfly valve 11 closes, the vacuum pump starts working, and the material is replenished.

[0020] Important components such as the weighing sensor 2, pulse valve 9, pneumatic butterfly valve 11, and striking hammer 13 are all externally mounted, which facilitates maintenance.

[0021] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum feeder with weighing function, characterized in that: It comprises a frame, weighing sensors, a vacuum hopper, a suction port, a vacuum cover, an air intake port, filter elements, an air tank, a pulse valve, a discharge nozzle, a pneumatic butterfly valve, a flow-assisted jet pipe, and impact hammers. Several weighing sensors are evenly installed around the bottom perimeter of the vacuum hopper, and these sensors are fixed to the frame. A suction port is located on the side wall of the vacuum hopper. A vacuum cover is fixed to the top of the vacuum hopper, and an air intake port is connected to the upper part of the vacuum cover. Several staggered filter elements are installed inside the vacuum cover. An air tank is installed on the outside of the vacuum cover, and the air tank communicates with the interior of the vacuum cover through a pipe equipped with a pulse valve. A pneumatic butterfly valve is installed at the discharge nozzle at the bottom of the vacuum hopper. A flow-assisted jet pipe is installed above the discharge nozzle on the outer periphery of the vacuum hopper, and several jet nozzles facing into the vacuum hopper are installed on the flow-assisted jet pipe. Impact hammers are also installed on the side wall of the vacuum hopper.

2. The vacuum material feeder with weighing function according to claim 1, characterized in that: The number of weighing sensors is three.

3. A vacuum material feeder with weighing function according to claim 1, characterized in that: The filter element is fixed on the hanging plate inside the vacuum cover, and there are at least eight filter elements.

4. A vacuum material feeder with weighing function according to claim 1, characterized in that: The number of spray nozzles is at least five, and they are evenly distributed on the side wall of the vacuum bucket.

5. A vacuum material feeder with weighing function according to claim 1, characterized in that: The impact hammer is located above the flow-assisted jet pipe.

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