Automatic negative-pressure dust-free closed feeding device

Abstract

The utility model relates to an automatic negative-pressure dust-free closed feeding device. Comprising a treatment cavity with an inner cavity formed inside, a cover plate fixedly arranged at the top of the treatment cavity, a funnel-shaped material guiding cavity arranged at the bottom of the treatment cavity in a communicating mode, a discharging opening formed in the bottom of the material guiding cavity, an electric cover arranged at the discharging opening and a negative pressure assembly arranged on the cover plate. According to the utility model, the processing cavity, the cover plate, the material guiding cavity and the sealing pipe form a closed space, so that open nodes such as an unpacking opening and a conveying pipeline in the traditional equipment are eliminated, the sealing performance is improved, and the safety is improved. The vacuum pump is connected with the sliding pipe, the air pressure in the treatment cavity is adjusted, materials can be guided into the treatment cavity through negative pressure, manual intervention is reduced, and leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of material feeding, and in particular to an automatic negative pressure dust-free sealed feeding device. Background Technology

[0002] In the pharmaceutical industry, the powder material feeding process has long faced challenges such as dust pollution, material loss, cross-contamination, and safety risks. Traditional manual or mechanical feeding methods, due to their open operation and poor sealing, often result in frequent dust leaks, making it difficult to meet high cleanliness or explosion-proof requirements.

[0003] Therefore, there is a need for an automatic negative pressure dust-free closed feeding device with good sealing performance and high safety. Utility Model Content

[0004] In view of this, the present invention aims to propose an automatic negative pressure dust-free sealed feeding device to solve the problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] An automatic negative pressure dust-free sealed feeding device includes a processing chamber with an internal cavity, a cover plate fixedly installed on the top of the processing chamber, a funnel-shaped guide chamber connected to the bottom of the processing chamber, a discharge port opened at the bottom of the guide chamber, an electric cover installed at the discharge port, and a negative pressure component installed on the cover plate.

[0007] The negative pressure assembly includes a vacuum pump fixedly installed on the top surface of the cover plate, a connecting pipe connected to the vacuum pump, and a sliding pipe connected to the connecting pipe. One end of the sliding pipe extends into the processing chamber and is equipped with a protective component.

[0008] A sealing pipe is connected to the upper part of the processing chamber, and a sealing valve is installed on the sealing pipe.

[0009] Furthermore, the protective component includes a shield and connecting blocks. The shield has an inner cavity, and the end of the sliding tube is located inside the shield. Multiple connecting blocks are spaced around the end of the sliding tube. One end of the connecting block is fixedly connected to the inner wall of the shield, and the other end is fixedly connected to the sliding tube.

[0010] Furthermore, an electric rod is fixedly provided on the top surface of the cover plate, and a connecting rod is fixedly provided at the end of the electric rod, and the connecting rod is fixedly connected to the sliding tube.

[0011] Furthermore, the bottom surface of the cover plate is fixedly provided with an installation ring around the sliding tube, and the bottom of the installation ring is provided with a slot that conforms to the top contour of the blocking cover.

[0012] Furthermore, the processing chamber is also provided with a buffer assembly, which is directly opposite the sealing tube. The buffer assembly includes a rotating shaft rotatably connected to the top of the processing chamber and a baffle plate fixedly connected to the rotating shaft.

[0013] Furthermore, both ends of the rotating shaft extend to the outside of the processing cavity and are fitted with torsion springs. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the processing cavity.

[0014] Furthermore, the processing chamber is also equipped with a stirring assembly, which includes a motor, a rotating column, and partitions. The rotating column is rotatably connected to two opposite sides of the processing chamber. Multiple partitions are fixedly arranged at intervals around the rotating column. The motor is fixedly installed on the outer wall of the processing chamber, and the output shaft of the motor is fixedly connected to the rotating column.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] In this invention, the processing chamber, cover plate, material guide chamber, and sealing pipe form a closed space, eliminating open nodes such as unpacking ports and conveying pipes in traditional equipment, thus increasing sealing performance and improving safety. A vacuum pump connected to a sliding tube regulates the internal air pressure of the processing chamber, allowing material to be introduced into the chamber through negative pressure, reducing manual intervention and minimizing leakage. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the protective component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the barrier cover of this utility model;

[0022] Figure 5 This is a schematic diagram of the torsion spring and rotating shaft structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the stirring assembly structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Processing chamber; 101. Feeding chamber; 102. Discharge port; 103. Electric cover; 2. Cover plate; 3. Vacuum pump; 301. Connecting pipe; 302. Sliding pipe; 4. Electric rod; 401. Connecting rod; 5. Baffle cover; 501. Connecting block; 6. Mounting ring; 601. Slot; 7. Baffle plate; 701. Rotating shaft; 702. Torsion spring; 8. Motor; 801. Rotating column; 802. Partition plate; 10. Sealing pipe; 1001. Sealing valve. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0029] The following will refer to the appendix. Figures 1 to 6 The present invention will be described in detail with reference to the embodiments.

[0030] Overall, this utility model relates to an automatic negative pressure dust-free sealed feeding device, including a processing chamber 1 with an inner cavity, a cover plate 2 fixedly installed on the top of the processing chamber 1, a funnel-shaped guide chamber 101 connected to the bottom of the processing chamber 1, a discharge port 102 opened at the bottom of the guide chamber 101, an electric cover 103 installed at the discharge port 102, and a negative pressure component installed on the cover plate 2.

[0031] The negative pressure assembly includes a vacuum pump 3 fixedly installed on the top surface of the cover plate 2, a connecting pipe 301 connected to the vacuum pump 3, and a sliding pipe 302 connected to the connecting pipe 301. One end of the sliding pipe 302 extends into the interior of the processing chamber 1 and is equipped with a protective component. A sealing pipe 10 is connected to the upper part of the processing chamber 1, and a sealing valve 1001 is provided on the pipe of the sealing pipe 10.

[0032] In this embodiment, the processing chamber 1, cover plate 2, material guide chamber 101, and sealing pipe 10 form a closed space, eliminating open nodes such as unpacking ports and conveying pipes in traditional equipment, increasing sealing performance and improving safety. The vacuum pump 3 is connected to the sliding pipe 302 to adjust the air pressure inside the processing chamber 1, allowing the material to be introduced into the processing chamber 1 through negative pressure, reducing manual intervention and minimizing leakage.

[0033] The sealing tube 10 is used to connect the processing chamber 1 to the material discharge point. The protective component can prevent the material from entering the regulating tube and affecting the operation of the vacuum pump 3 when feeding under negative pressure.

[0034] In practice, the electric cover 103 and the sealing valve 1001 are first closed, and the vacuum pump 3 is started to evacuate the processing chamber 1 to create a negative pressure state. Then, the sealing valve 1001 is opened, and the material enters the processing chamber 1 through the sealing pipe 10. When the material in the processing chamber 1 reaches saturation or the pressure returns to normal, the bottom electric cover 103 is opened, and the material enters the downstream equipment (such as a reactor) through the feed inlet 102 via the feed guide chamber 101. After feeding is completed, the electric cover 103 is closed.

[0035] Among them, such as Figures 2 to 4 As shown, the above-mentioned protective components include a shield 5 and a connecting block 501. The shield 5 has an inner cavity, and the end of the sliding tube 302 is located inside the shield 5. Multiple connecting blocks 501 are spaced around the end of the sliding tube 302. One end of the connecting block 501 is fixedly connected to the inner wall of the shield 5, and the other end is fixedly connected to the sliding tube 302.

[0036] In this embodiment, the end of the sliding tube 302 extends into the inner cavity of the blocking cover 5, and the two are rigidly connected by multiple annular array connecting blocks 501. When the sealing tube 10 guides the material, it can play a certain role in blocking the splashed dust and prevent it from entering the sliding tube 302 and affecting the operation of the vacuum pump 3.

[0037] Based on the above settings, such as Figure 2As shown, an electric rod 4 is fixedly installed on the top surface of the cover plate 2, and a connecting rod 401 is fixedly installed at the end of the electric rod 4. The connecting rod 401 is fixedly connected to the sliding tube 302. The electric rod 4 drives the sliding tube 302 to slide up and down. When the sealing tube 10 guides the material, the electric rod 4 drives the sliding tube 302 to slide upward, so that the top of the barrier cover 5 abuts against the bottom surface of the cover plate 2, and a sealed space is formed inside the barrier cover 5, further preventing dust from entering the sliding tube 302.

[0038] It should be noted that the sliding tube 302 is a rigid tube, the connecting tube 301 is a flexible tube, and multiple sealing rings are provided at the connection between the sliding tube 302 and the cover plate 2. This structure increases the overall sealing performance and prevents leakage accidents.

[0039] In order to further enhance the seal between the shield 5 and the cover plate 2 during the fit, in this embodiment, as follows: Figure 3 As shown, a mounting ring 6 is fixedly provided on the bottom surface of the cover plate 2 around the sliding tube 302, and a slot 601 conforming to the top contour of the blocking cover 5 is provided at the bottom of the mounting ring 6.

[0040] In practice, when the shield 5 moves upward, its top will enter the slot 601 and cooperate with it, further increasing the sealing and preventing dust from entering the shield 5.

[0041] As a preferred structure in this embodiment, in order to reduce the pressure of material impacting the inner wall of the processing chamber 1 when the sealing tube 10 guides the material, a buffer assembly is also provided in the processing chamber 1 in this embodiment. The buffer assembly is directly opposite the sealing tube 10. The buffer assembly includes a rotating shaft 701 rotatably connected to the top of the processing chamber 1 and a baffle plate 7 fixedly connected to the rotating shaft 701.

[0042] In this embodiment, the baffle plate 7 is fixedly connected to the rotating shaft 701. When the material is ejected from the sealing tube 10, it will impact the baffle plate 7, dispersing the impact force of the material. The surface of the baffle plate 7 is designed with a corrugated or honeycomb structure to increase the contact area and reduce local pressure.

[0043] Based on the above settings, such as Figure 5 As shown, both ends of the rotating shaft 701 extend to the outside of the processing chamber 1 and are fitted with torsion springs 702. One end of the torsion spring 702 is fixedly connected to the rotating shaft 701, and the other end is fixedly connected to the processing chamber 1. This configuration enables the baffle plate 7 to have a reset function, allowing it to adjust its angle according to the material impact force of the sealing tube 10 while also resetting, further increasing the buffering effect of the buffer assembly and extending the service life of the processing chamber 1.

[0044] Furthermore, in this embodiment, to facilitate the uniformity of the material within the processing chamber 1 and to simplify the feeding operation, such as... Figure 6As shown, the processing chamber 1 is also equipped with a stirring assembly, which includes a motor 8, a rotating column 801, and a partition 802. The rotating column 801 is rotatably connected to two opposite sides of the processing chamber 1. Multiple partitions 802 are fixedly arranged at intervals around the rotating column 801. The motor 8 is fixedly installed on the outer wall of the processing chamber 1, and the output shaft of the motor 8 is fixedly connected to the rotating column 801.

[0045] In practice, the motor 8 will drive the rotating column 801 to rotate, which in turn drives the partition 802 to stir the material accumulated in the processing chamber 1, preventing it from accumulating and blocking the discharge port 102.

[0046] When in use, this feeding device can be fixed to the ground or the wall using a bracket, depending on the actual situation, and no further limitations are made here.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic negative pressure dust-free closed feeding device, characterized in that: it comprises a processing cavity (1) with an inner cavity formed inside, a cover plate (2) fixedly arranged on the top of the processing cavity (1), a funnel-shaped material guiding cavity (101) communicatedly arranged at the bottom of the processing cavity (1), a discharging port (102) opened at the bottom of the material guiding cavity (101), an electric cover (103) arranged at the discharging port (102), and a negative pressure assembly arranged on the cover plate (2). The negative pressure assembly comprises a vacuum pump (3) fixedly arranged on the top surface of the cover plate (2), a communication pipe (301) connected with the vacuum pump (3), and a sliding pipe (302) connected with the communication pipe (301), one end of the sliding pipe (302) penetrating into the inside of the processing cavity (1) and being provided with a protection assembly. The upper position of the processing cavity (1) is communicated with a sealing pipe (10), and a sealing valve (1001) is arranged on the pipeline of the sealing pipe (10).

2. The automatic negative pressure dust-free closed feeding device according to claim 1, characterized in that: the protection assembly comprises a blocking cover (5) and a connecting block (501), the inside of the blocking cover (5) is provided with an inner cavity, the end of the sliding pipe (302) is located in the blocking cover (5), a plurality of connecting blocks (501) are arranged at intervals around the end of the sliding pipe (302), one end of the connecting block (501) is fixedly connected with the inner side wall of the blocking cover (5), and the other end is fixedly connected with the sliding pipe (302).

3. The automatic negative pressure dust-free closed feeding device according to claim 2, characterized in that: an electric rod (4) is fixedly arranged on the top surface of the cover plate (2), a connecting rod (401) is fixedly arranged on the end of the electric rod (4), and the connecting rod (401) is fixedly connected with the sliding pipe (302).

4. The automatic negative pressure dust-free closed feeding device according to claim 3, characterized in that: an installation ring (6) is fixedly arranged around the sliding pipe (302) on the bottom surface of the cover plate (2), and an insertion slot (601) conforming to the top profile of the blocking cover (5) is opened on the bottom of the installation ring (6).

5. The automatic negative pressure dust-free closed feeding device according to claim 4, characterized in that: a buffer assembly is further arranged in the processing cavity (1), the buffer assembly faces the sealing pipe (10), and the buffer assembly comprises a rotating shaft (701) rotatably connected with the top of the processing cavity (1) and a blocking plate (7) fixedly connected with the rotating shaft (701).

6. The automatic negative pressure dust-free closed feeding device according to claim 5, characterized in that: both ends of the rotating shaft (701) extend to the outside of the processing cavity (1) and are sleeved with a torsional spring (702), one end of the torsional spring (702) is fixedly connected with the rotating shaft (701), and the other end is fixedly connected with the processing cavity (1).

7. The automatic negative pressure dust-free closed feeding device according to claim 6, characterized in that: ​ ​ ​ ​ ​ ​ The processing cavity (1) is also provided with a stirring assembly, which comprises a motor (8), a rotating column (801) and a partition plate (802). The rotating column (801) is rotatably connected to two opposite sides of the processing cavity (1). A plurality of partition plates (802) are fixedly arranged on the circumferential side of the rotating column (801). The motor (8) is fixedly arranged on the outer wall of the processing cavity (1). The output shaft of the motor (8) is fixedly connected with the rotating column (801).

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