Medicine blocking prevention mechanism for dust remover

Abstract

The utility model provides an anti-sticking mechanism for a dust remover, which comprises a dust removal cover, a dust discharge pipe arranged at the top of the dust removal cover and a feeding platform arranged under the dust removal cover, a screen is horizontally arranged at the lower end of the dust removal cover, and the periphery of the screen is attached to the inner wall of the dust removal cover. Spring telescopic rods are vertically and upwards connected to the four corners of the upper surface of the screen correspondingly, fixing blocks are horizontally connected to the top faces of the spring telescopic rods, one sides of the fixing blocks are fixedly connected to the side wall of the dust removal cover, and a cleaning assembly capable of cleaning the screen is arranged on the lower end face of the dust removal cover. A vibration assembly capable of shaking the screen mesh is arranged on the upper side of the screen mesh; the mechanism is simple in structural design and low in cost, the situation that the filtering area of the screen is sharply reduced, the screen is blocked, medicine is blocked is avoided, medicine powder can be prevented from falling off, and the medicine preparation quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of dust collector technology, specifically relating to an anti-clogging mechanism for dust collectors. Background Technology

[0002] In the pre-processing of medicinal materials in the pharmaceutical industry, pneumatic conveying systems are the core equipment for material transfer, and their operational efficiency directly affects the quality of drug preparation. Current processes commonly use negative pressure adsorption dust collectors to convey and filter the crushed medicinal powder. However, this method has significant technical drawbacks in practical applications: when the crushed material contains large, insufficiently crushed medicinal particles, the gas-solid two-phase flow generates turbulence as it passes through the screen filter layer. This causes oversized medicinal particles to form bridge-like accumulations on the screen surface and leads to filter blockage and drug jamming. This phenomenon not only causes a sharp reduction in the effective filtration area of ​​the screen (usually by 40%-60%), but also triggers three major process problems: ① The sudden increase in system pressure due to screen blockage forces the equipment to stop frequently for cleaning, severely disrupting production continuity; ② The fine medicinal powder adhering to the screen surface generates secondary dust due to airflow disturbance, resulting in a material residue loss of about 12-15%, which is wasteful; ③ Unseparated and uncrushed medicinal materials are mixed into the finished powder, leading to major quality defects such as excessive content uniformity in subsequent preparation processes, which seriously restricts the production efficiency and economic benefits of pharmaceutical companies.

[0003] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes an anti-clogging mechanism that cleans the screen in real time to avoid a sharp reduction in the screen's filtration area and blockage of the screen, as well as to prevent powder from falling off and improve the quality of pharmaceutical manufacturing. This mechanism has a simple structure and low cost. Summary of the Invention

[0004] This utility model provides an anti-clogging mechanism for dust collectors. The mechanism features a simple structure and low cost, preventing a sharp reduction in the filtration area of ​​the screen and thus avoiding screen blockage and drug jamming. It also prevents powder from falling out, improving pharmaceutical quality. The specific solution is as follows:

[0005] A dust collector anti-jamming mechanism includes a dust collector hood, a dust discharge pipe disposed on top of the dust collector hood, and a medicine delivery platform disposed directly below the dust collector hood. A screen is horizontally disposed at the lower end of the dust collector hood, and the screen is attached to the inner wall of the dust collector hood around its perimeter. Spring telescopic rods are vertically connected to the four corners of the upper surface of the screen. A fixing block is horizontally connected to the top surface of the spring telescopic rod. One side of the fixing block is fixedly connected to the side wall of the dust collector hood. A cleaning component for cleaning the screen is disposed on the lower end surface of the dust collector hood, and a vibration component for shaking the screen is disposed on the upper surface of the screen.

[0006] Furthermore, the cleaning assembly includes a lead screw motor, a lead screw, a lead screw seat, a sliding sleeve, a connecting rod, and a long scraper. Two lead screw seats are respectively provided on opposite sides of the lower end face of the dust removal hood, and a lead screw is rotatably provided between the two lead screw seats. Sliding sleeves are fitted on the two lead screws respectively. The two lead screws are respectively connected by a lead screw motor. The connecting rod is horizontally connected between the two sliding sleeves. The scraper is vertically arranged on the connecting rod, and the side of the scraper away from the connecting rod abuts against the lower surface of the screen. The two lead screw motors are respectively connected to the controller through signal lines.

[0007] Furthermore, the scraper on the side facing away from the connecting rod is made of rubber material.

[0008] Furthermore, the vibration assembly includes a drive motor and a cam. The drive motor is detachably connected to an outer side of the dust collector hood. The output shaft of the drive motor passes through the side wall of the dust collector hood. A cam is fitted on the output shaft of the drive motor and contacts the upper surface of the screen. The drive motor is connected to a controller via a signal line.

[0009] Furthermore, vibration components are provided on opposite sides of the dust removal hood.

[0010] Furthermore, two sliders are vertically arranged on opposite sides of the screen, and corresponding grooves are provided on the side wall of the dust collector hood to facilitate the up-and-down sliding of the sliders.

[0011] The beneficial effects of this utility model are:

[0012] This utility model discloses an anti-clogging mechanism for a dust collector. By incorporating a cleaning component, a vibration component, and a spring telescopic rod, the cleaning and vibration components operate simultaneously when the dust collector adsorbs and filters the powder. At this time, a lead screw motor drives the lead screw to reciprocate, and a sliding plate on the connecting rod scrapes and cleans the lower surface of the screen, removing residual powder and particles exceeding the size limit to prevent clogging. Simultaneously, the drive motor drives a cam to rotate continuously, causing it to strike the screen and create vibration. The elastic force of the spring telescopic rod causes the screen to reciprocate up and down, ensuring that the powder scraped off by the scraper continues to be adsorbed and transported by the dust collector, preventing waste. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a partial bottom view of the present invention.

[0015] Figure 3 This is a schematic diagram of the screen and its connecting components of this utility model.

[0016] Figure 4This is a side view of a component of the screen machine of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Dust hood, 2. Dust discharge pipe, 3. Medicine delivery platform, 4. Screen, 5. Spring telescopic rod, 6. Fixing block, 7. Screw motor, 8. Screw, 9. Screw seat, 10. Sliding sleeve, 11. Connecting rod, 12. Scraper, 13. Drive motor, 14. Cam, 15. Slider, 16. Slide groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] See Figure 1-4 A dust collector anti-jamming mechanism includes a dust collector hood 1, a dust discharge pipe 2 set on the top of the dust collector hood 1, and a medicine delivery platform 3 set directly below the dust collector hood 1. A screen 4 is horizontally provided at the lower end of the dust collector hood 1, and the screen 4 is attached to the inner wall of the dust collector hood 1 around its perimeter. Spring telescopic rods 5 are vertically connected to the four corners of the upper surface of the screen 4. A fixing block 6 is horizontally connected to the top surface of the spring telescopic rod 5. One side of the fixing block 6 is fixedly connected to the side wall of the dust collector hood 1. A cleaning component for cleaning the screen 4 is provided on the lower end surface of the dust collector hood 1, and a vibration component for shaking the screen 4 is provided on the upper side of the screen 4.

[0021] The preferred cleaning assembly includes a lead screw motor 7, a lead screw 8, a lead screw seat 9, a sliding sleeve 10, a connecting rod 11, and a long scraper 12. Two lead screw seats 9 are respectively provided on opposite sides of the lower end face of the dust collector 1. The lead screw seats 9 are detachably connected to the lower end face of the dust collector 1 by screws. A lead screw 8 is rotatably mounted between the two lead screw seats 9. Sliding sleeves 10 are fitted onto the two lead screws 8. The two lead screws 8 are respectively connected by the lead screw motor 7. The connecting rod 11 is horizontally connected between the two sliding sleeves 10. The scraper... The scraper 12 is vertically mounted on the connecting rod 11, and the side of the scraper 12 facing away from the connecting rod 11 abuts against the lower surface of the screen 4. The two lead screw motors 7 are connected to the controller through signal lines. When in use, the controller starts the two lead screw motors 7, and the two lead screw motors 7 drive the two lead screws 8 to rotate. At this time, the sliding sleeve 10 can be driven to move on the lead screw 8, so that the scraper 12 connected to the connecting rod 11 can perform a reciprocating scraping action on the lower surface of the screen 4 to scrape off the powder and accumulated materials on the lower surface of the screen 4.

[0022] The preferred scraper 12 is made of rubber material on the side away from the connecting rod 11, which not only enhances friction but also reduces damage to the lower surface of the screen 4.

[0023] The preferred vibration assembly includes a drive motor 13 and a cam 14. The drive motor 13 is detachably connected to an outer side of the dust collector 1. The output shaft of the drive motor 13 passes through the side wall of the dust collector 1. The cam 14 is sleeved on the output shaft of the drive motor 13 and contacts the upper surface of the screen 4. The drive motor 13 is connected to the controller via a signal line. When in use, the controller starts the drive motor 13. The drive motor 13 drives the output shaft to rotate, which in turn drives the cam 14 to rotate continuously. The cam 14 continuously strikes the upper surface of the screen 4. Under the action of the spring telescopic rod 5, the screen 4 shakes up and down continuously, thereby preventing the accumulation of powder in the screen holes of the screen 4 and preventing the screen holes from clogging.

[0024] The preferred dust cover 1 is provided with vibration components on opposite sides.

[0025] The preferred screen 4 has two vertically arranged sliders 15 on opposite sides, and the corresponding dust collector hood 1 has a groove 16 on its side wall to facilitate the sliding of the sliders 15 up and down. The arrangement of the sliders 15 and the groove helps to ensure the stability of the screen 4 when it shakes up and down.

[0026] The working principle of this utility model is as follows: When the dust collector adsorbs, filters, and conveys the powder on the delivery platform 3, the controller simultaneously controls the start of two lead screws 7 and two drive motors 14. The drive motor 13 drives the output shaft to rotate, which in turn drives the cam 14 to rotate continuously. The cam 14 continuously strikes the upper surface of the screen 4. Under the action of the spring telescopic rod 5, the screen 4 shakes up and down continuously. The powder that falls off can continue to be adsorbed, filtered, and conveyed by the dust collector, thereby avoiding the accumulation of powder in the screen holes of the screen 4 and preventing the screen holes from clogging. At the same time, the two lead screw motors 7 drive the two lead screws 8 to rotate. At this time, the sliding sleeve 10 can be moved on the lead screw 8, which allows the scraper 12 connected to the connecting rod 11 to perform a reciprocating scraping action on the lower surface of the screen 4 to scrape off the powder and accumulated material attached to the lower surface of the screen 4.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust collector anti-jamming mechanism, characterized in that: The device includes a dust hood (1), a dust discharge pipe (2) set on the top of the dust hood (1), and a medicine delivery platform (3) set directly below the dust hood (1). A screen (4) is horizontally provided at the lower end of the dust hood (1), and the screen (4) is attached to the inner wall of the dust hood (1) around its perimeter. Spring telescopic rods (5) are vertically connected to the four corners of the upper surface of the screen (4). A fixing block (6) is horizontally connected to the top surface of the spring telescopic rod (5). One side of the fixing block (6) is fixedly connected to the side wall of the dust hood (1). A cleaning component for cleaning the screen (4) is provided on the lower end surface of the dust hood (1), and a vibration component for shaking the screen (4) is provided on the upper side of the screen (4).

2. The anti-jamming mechanism for a dust collector according to claim 1, characterized in that: The cleaning assembly includes a lead screw motor (7), a lead screw (8), a lead screw seat (9), a sliding sleeve (10), a connecting rod (11), and a long scraper (12). Two lead screw seats (9) are respectively provided on opposite sides of the lower end face of the dust removal hood (1). A lead screw (8) is rotatably provided between the two lead screw seats (9). Sliding sleeves (10) are respectively fitted on the two lead screws (8). The two lead screws (8) are respectively connected by the lead screw motor (7). The connecting rod (11) is horizontally connected between the two sliding sleeves (10). The scraper (12) is vertically arranged on the connecting rod (11), and the side of the scraper (12) away from the connecting rod (11) abuts against the lower surface of the screen (4). The two lead screw motors (7) are respectively connected to the controller through signal lines.

3. The anti-jamming mechanism for a dust collector according to claim 2, characterized in that: The scraper (12) on the side opposite to the connecting rod (11) is made of rubber material.

4. The anti-jamming mechanism for a dust collector according to claim 1, characterized in that: The vibration assembly includes a drive motor (13) and a cam (14). The drive motor (13) is detachably connected to an outer side of the dust collector (1). The output shaft of the drive motor (13) passes through the side wall of the dust collector (1). The cam (14) is sleeved on the output shaft of the drive motor (13) and contacts the upper surface of the screen (4). The drive motor (13) is connected to the controller through a signal line.

5. The anti-jamming mechanism for a dust collector according to claim 1, characterized in that: The dust removal hood (1) is provided with vibration components on its opposite sides.

6. The anti-jamming mechanism for a dust collector according to claim 1, characterized in that: The screen (4) has two vertical sliders (15) on opposite sides, and the corresponding dust collector (1) has a groove (16) on its side wall suitable for the sliders (15) to slide up and down.

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