Multifunctional negative pressure feeding equipment

Abstract

The multifunctional negative pressure feeding equipment comprises a negative pressure box and a vacuum pump, the negative pressure box comprises a box shell and a drainage pipe, the drainage pipe is installed on one side of the box shell and fixedly connected with the box shell, a pumping and pressing cover is installed on the top of the box shell and fixedly connected with the box shell in a sealed mode, and the vacuum pump is installed on the box shell. A discharging shell is installed at the lower end of the box shell, the discharging shell is connected with the box shell in a sealed mode, a partition assembly is installed in the discharging shell, and the partition assembly is rotationally connected with the discharging shell. The negative pressure principle is used for feeding, dust flying is effectively avoided, the air quality of a production workshop is improved, the health of operators is protected, and the environment-friendly requirement is met. And through cooperation of the separation assembly and the driving motor, the feeding amount and speed can be accurately controlled, the requirements of different production processes are met, and the stability of the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure feeding equipment, specifically a multi-functional negative pressure feeding device. Background Technology

[0002] In the production processes of industries such as pharmaceuticals, food, and chemicals, the feeding of solid materials is a crucial component of the production flow, directly impacting production efficiency, product quality, and the working environment. Taking the pharmaceutical industry as an example, in the production of drug formulations, it is necessary to feed solid materials such as active pharmaceutical ingredients (APIs) and excipients into mixing equipment, reaction vessels, or pulverizing equipment in precise proportions. This process places extremely high demands on the sealing, metering accuracy, and operational safety of the feeding process.

[0003] Traditional feeding equipment mostly adopts gravity-type or positive pressure pushing structures. Gravity-type feeding is usually achieved by manual tilting or a simple funnel device, with materials falling directly from the hopper into the equipment below. Gravity-type feeding relies on manual control of the tilting speed, making it difficult to achieve continuous and uniform feeding, and easily resulting in inconsistent amounts of material.

[0004] Meanwhile, existing feeding equipment is prone to splashing during the feeding of particulate matter due to gravity, and a large amount of dust is also emitted into the workshop environment through the gaps. This not only pollutes the production environment, but may also cause the material composition to become unbalanced due to dust loss, affecting the stability of product quality. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional negative pressure feeding device, which aims to improve the problem that existing feeding devices cannot stably and safely feed materials.

[0006] This utility model is implemented as follows: A multifunctional negative pressure feeding device includes a negative pressure box and a vacuum pump. The negative pressure box includes a box shell and a drain pipe. The drain pipe is installed on one side of the box shell and is fixedly connected to the box shell. A pressure suction cover is installed on the top of the box shell and is sealed and fixedly connected to the box shell. A discharge shell is installed at the lower end of the box shell and is sealed to the box shell. A separator component is installed in the discharge shell and is rotatably connected to the discharge shell. A drive motor for driving the separator component to rotate is fixedly installed at the outer end of the discharge shell.

[0007] Preferably, the housing includes a conical shell and an annular shell for installing the drainage tube. The annular shell is installed on the upper end face of the conical shell, and the annular shell and the conical shell are integrally formed.

[0008] Preferably, the vacuum cover includes a top cover and a connecting pipe connected to the vacuum pump. The connecting pipe is installed at the center of the upper surface of the top cover and is fixedly connected to the top cover.

[0009] Preferably, an auxiliary baffle is installed in the top cover, and the auxiliary baffle is fixedly connected to the top cover.

[0010] Preferably, the discharge shell includes a tube shell and a side cover for mounting the drive motor. The lower end face of the tube shell has a discharge groove, and the side cover is fixedly installed on one side of the tube shell.

[0011] Preferably, the partition assembly includes a central tube and partition plates, the partition plates being uniformly installed on the outer side of the central tube and fixedly connected to the central tube.

[0012] Preferably, a positioning shaft is provided on the inner side of the tube shell for rotating the middle tube, and the positioning shaft is fixedly connected to the tube shell.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This application utilizes the principle of negative pressure for material feeding, effectively preventing dust from flying, improving the air quality in the production workshop, protecting the health of operators, and meeting environmental protection requirements. Through the cooperation of the separating component and the drive motor, the feeding amount and speed can be precisely controlled to meet the needs of different production processes and improve the stability of product quality. The auxiliary baffle protecting the vacuum pump and the positioning shaft providing stable support for the separating component extend the service life of key components and reduce equipment maintenance costs. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of the overall structure in an embodiment of this utility model;

[0015] Figure 2 yes Figure 1 The device shown is a front view without the pressure-removing cover installed;

[0016] Figure 3 yes Figure 2 A cross-sectional view of the device shown along the AA direction;

[0017] Figure 4 This is a side view of the negative pressure box, the pressure extraction cover, and the tube shell in an embodiment of this utility model.

[0018] Figure 5 This is a perspective view of the pressure-removing cover in an embodiment of this utility model;

[0019] Figure 6 This is a perspective view of the separator component in an embodiment of this utility model.

[0020] In the diagram: 1. Negative pressure box; 11. Box shell; 111. Conical shell; 112. Annular shell; 12. Drainage pipe; 2. Pressure suction cover; 21. Top cover; 211. Auxiliary baffle; 22. Connecting pipe; 3. Discharge shell; 31. Pipe shell; 311. Discharge chute; 312. Positioning shaft; 32. Side cover; 4. Separating assembly; 41. Middle pipe; 42. Separating plate; 5. Drive motor; 6. Vacuum pump. Detailed Implementation

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0023] Reference Figure 1 , Figure 2 and Figure 3As shown, a multifunctional negative pressure feeding device includes a negative pressure box 1 and a vacuum pump 6. The negative pressure box 1 includes a box shell 11 and a guide pipe 12. The guide pipe 12 is installed on one side of the box shell 11 and is fixedly connected to the box shell 11. A pressure suction cover 2 is installed on the top of the box shell 11 and is sealed and fixedly connected to the box shell 11. A discharge shell 3 is installed at the lower end of the box shell 11 and is sealed to the box shell 11. A separator component 4 is installed in the discharge shell 3 and is rotatably connected to the discharge shell 3. A drive motor 5 for driving the separator component 4 to rotate is fixedly installed at the outer end of the discharge shell 3. By setting up the negative pressure box 1 and the vacuum pump 6, the feeding is carried out using the negative pressure principle, which can effectively avoid dust flying and improve the production environment. The guide pipe 12 facilitates the entry of materials, and the sealed connection between the pressure suction cover 2 and the box shell 11 ensures the stability of the negative pressure environment. The separator 4 in the discharge shell 3 rotates under the drive of the drive motor 5, enabling precise control of the feeding amount and speed, improving production efficiency and product quality. During use, the raw material sucked into the negative pressure box 1 falls into the discharge shell 3 below, and is then stably discharged by the rotating separator 4 within the discharge shell 3. The housing 11 includes a conical shell 111 and an annular shell 112 for installing the guide pipe 12. The annular shell 112 is installed on the upper end face of the conical shell 111, and is integrally formed with the conical shell 111. The housing 11 adopts an integrally formed structure of the conical shell 111 and the annular shell 112. The conical shell 111 facilitates material concentration and falling, while the annular shell 112 provides convenience for the installation of the guide pipe 12. This structural design makes the flow of material within the housing 11 smoother and reduces the possibility of material residue. The housing 11 can be made of stainless steel, which has good corrosion resistance and strength, and can adapt to different production environments. The drive motor 5 can be a stepper motor, such as the 57 stepper motor, which has the advantages of high precision and convenient speed adjustment.

[0024] Reference Figure 1 and Figure 5As shown, the pressure-reducing cover 2 includes a top cover 21 and a connecting pipe 22 connected to the vacuum pump 6. The connecting pipe 22 is installed at the center of the upper surface of the top cover 21 and is fixedly connected to the top cover 21. The design of the top cover 21 and the connecting pipe 22 of the pressure-reducing cover 2 facilitates connection with the vacuum pump 6 and enables the rapid and effective formation of a negative pressure environment in the negative pressure chamber 1. The connecting pipe 22 being installed at the center of the top cover 21 ensures the uniformity of air extraction and improves the efficiency of negative pressure formation. An auxiliary baffle 211 is installed in the top cover 21 and is fixedly connected to the top cover 21. The auxiliary baffle 211 installed in the top cover 21 prevents materials from being sucked into the vacuum pump 6, protecting the vacuum pump 6, extending its service life, and ensuring the normal operation of the negative pressure equipment. The auxiliary baffle 211 can be made of stainless steel wire mesh and is fixedly connected to the top cover 21 by welding or slot fixing. Connecting pipe 22 can be made of rubber tubing of appropriate diameter to ensure a tight seal. Vacuum pump 6 can be a rotary vane vacuum pump, such as the 2XZ series vacuum pump, which features fast pumping speed and high vacuum level.

[0025] Reference Figure 2 and Figure 4 As shown, the discharge shell 3 includes a tube shell 31 and a side cover 32 for mounting the drive motor 5. A discharge groove 311 is formed on the lower end face of the tube shell 31, and the side cover 32 is fixedly installed on one side of the tube shell 31. The tube shell 31 and side cover 32 structure of the discharge shell 3 facilitates material discharge through the discharge groove 311 at the lower end of the tube shell 31, while the side cover 32 provides a fixed position for mounting the drive motor 5, enabling the drive motor 5 to stably drive the separating component 4 to rotate, thus ensuring the smooth operation of the feeding process.

[0026] Reference Figure 3 and Figure 6 As shown, the separating component 4 includes a central tube 41 and separating plates 42. The separating plates 42 are evenly installed on the outer surface of the central tube 41 and are fixedly connected to the central tube 41. The design of the central tube 41 and separating plates 42 in the separating component 4, with the separating plates 42 evenly installed on the outer surface of the central tube 41, allows the material to be separated into a certain quantity during rotation, achieving precise control of the feeding amount. The feeding speed can also be adjusted by controlling the rotation speed of the drive motor 5. A positioning shaft 312 for rotating the central tube 41 is provided on the inner side of the tube shell 31, and the positioning shaft 312 is fixedly connected to the tube shell 31. The positioning shaft 312 on the inner side of the tube shell 31 provides stable support for the rotation of the central tube 41, ensuring the smoothness of the rotation of the separating component 4 and preventing swaying or deviation during rotation, further improving the accuracy of feeding amount and speed control.

[0027] Working Principle: When the equipment is in use, the vacuum pump 6 is started, creating a negative pressure environment in the negative pressure box 1 through the connecting pipe 22. Material enters the negative pressure box 1 through the inlet pipe 12, and under the action of negative pressure, the material is quickly sucked into the box shell 11. The drive motor 5 is started, driving the separating component 4 to rotate. The separating plate 42 separates the material into a certain amount, and as the separating component 4 rotates, the material is discharged through the discharge chute 311, realizing the feeding process. According to the requirements of the production process, the rotation speed of the separating component 4 can be controlled by adjusting the speed of the drive motor 5, thereby achieving precise control of the feeding amount and speed.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional negative pressure feeding device, comprising a negative pressure box (1) and a vacuum pump (6), characterized in that, The negative pressure box (1) includes a box shell (11) and a drain pipe (12). The drain pipe (12) is installed on one side of the box shell (11) and is fixedly connected to the box shell (11). A pressure-drawing cover (2) is installed on the top of the box shell (11). The pressure-drawing cover (2) is sealed and fixedly connected to the box shell (11). A discharge shell (3) is installed at the lower end of the box shell (11). The discharge shell (3) is sealed and connected to the box shell (11). A separator component (4) is installed in the discharge shell (3). The separator component (4) is rotatably connected to the discharge shell (3). A drive motor (5) for driving the separator component (4) to rotate is fixedly installed at the outer end of the discharge shell (3).

2. The multifunctional negative pressure feeding device according to claim 1, characterized in that, The housing (11) includes a conical shell (111) and an annular shell (112) for installing the drainage pipe (12). The annular shell (112) is installed on the upper end face of the conical shell (111), and the annular shell (112) and the conical shell (111) are integrally formed.

3. The multifunctional negative pressure feeding device according to claim 2, characterized in that, The pressure-reducing cover (2) includes a top cover (21) and a connecting pipe (22) connected to the vacuum pump (6). The connecting pipe (22) is installed at the center of the upper end face of the top cover (21) and is fixedly connected to the top cover (21).

4. The multifunctional negative pressure feeding device according to claim 3, characterized in that, An auxiliary baffle (211) is installed in the top cover (21), and the auxiliary baffle (211) is fixedly connected to the top cover (21).

5. The multifunctional negative pressure feeding device according to claim 4, characterized in that, The discharge shell (3) includes a tube shell (31) and a side cover (32) for mounting the drive motor (5). The lower end face of the tube shell (31) is provided with a discharge groove (311), and the side cover (32) is fixedly installed on one side of the tube shell (31).

6. The multifunctional negative pressure feeding device according to claim 5, characterized in that, The partition assembly (4) includes a central tube (41) and a partition plate (42). The partition plate (42) is evenly installed on the outer side of the central tube (41) and is fixedly connected to the central tube (41).

7. A multifunctional negative pressure feeding device according to claim 6, characterized in that, The inner side of the tube shell (31) is provided with a positioning shaft (312) for the rotational installation of the middle tube (41), and the positioning shaft (312) is fixedly connected to the tube shell (31).

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