Dust removal device of dust-free tablet press

Abstract

The utility model relates to a dust removal device of a dust-free tablet press, which belongs to the technical field of tablet presses and comprises a tablet press body, a dust storage box is fixed on the upper surface of the tablet press body, and a collecting mechanism for collecting dust is arranged at the right end of the inner bottom wall of the dust storage box. A vibration mechanism for improving the self-cleaning capability of the dust removal device is arranged at the right end of the upper surface of the dust storage box; the collecting mechanism comprises a first flow guide plate, a second flow guide plate, an axial flow fan, a fixed frame, a filter element, a plurality of air outlets and a dust blocking barrel. According to the dust removal device of the dust-free tablet press, by arranging the collecting mechanism, the collecting efficiency of suspended medicine powder in the tablet pressing process is remarkably improved, secondary pollution is effectively avoided, the overall structural form is greatly simplified, installation, debugging and daily management are facilitated, in addition, by introducing automatic elements, manpower resources are greatly saved, and meanwhile the labor intensity of workers is lowered. And the long-term stable and reliable operation performance is also ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tablet presses, in particular to a dust removal device for a dust-free tablet press. Background Art

[0002] Tablet presses are mainly used in the research of tablet process in pharmaceutical industry. Tablet presses are automatic continuous production equipment that presses granular materials into round, special-shaped and tablets with text, symbols and graphics with a diameter not exceeding 13mm. Some pharmaceutical tablet presses produce burrs and dust during tablet pressing. They should be equipped with a tablet screen for dust removal (more than twice) at the same time and must meet GMP specifications.

[0003] Through searching, it was found that Chinese patent announcement number: CN208085062U discloses a dust removal cover for a tablet press, including an annular cover, an air damper valve tube and an adjusting ring piece. The annular cover includes a lower ring seat, a side curved plate and an upper ring seat. The upper ring seat, one end of the air damper valve tube is connected to the surface of the side curved plate. A valve stem and a valve piece are respectively provided inside the air damper valve tube. An inner hole is opened in the middle of the valve piece. A threaded rod is installed through the middle of the adjusting ring piece. Nuts 1 and 2 are threadedly installed in the middle of the threaded rod. The technical solution of this utility model is arranged on the outside of the tablet press seat through two annular covers and cooperates with the air damper valve tube to press the tablet seat. The dust generated during operation is absorbed, the upper and lower positions of the adjusting ring are adjustable and the diameter of the air intake port of the air damper valve pipe is adjustable, which is conducive to controlling the suction force of the dust removal equipment according to the actual working conditions of the equipment, avoiding excessive suction force causing the powder on the tablet press seat to be sucked away, resulting in reduced equipment yield, ensuring dust reduction while avoiding affecting equipment yield. Although this utility model can reduce the dust concentration in the workshop to a certain extent, due to the low dust collection efficiency, a large amount of particles will still remain in the air, and the equipment occupies a large area, it is difficult to adapt to the needs of the compact layout of modern production lines. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a dust removal device for a dust-free tablet press, which has the advantages of high dust collection efficiency. It solves the problem that although the dust concentration in the workshop can be reduced to a certain extent, a large amount of particles will still remain in the air due to the low dust collection efficiency. In addition, the equipment occupies a large area and is difficult to adapt to the compact layout requirements of modern production lines.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a dust removal device for a dust-free tablet press, comprising a tablet press body, a dust storage box fixed to the upper surface of the tablet press body, a collection mechanism for collecting dust provided at the right end of the bottom wall of the dust storage box, and a vibration mechanism for improving the self-cleaning ability of the dust removal device provided at the right end of the upper surface of the dust storage box;

[0006] The collecting mechanism includes a first guide plate, a second guide plate, an axial fan, a fixed frame, a filter element, multiple air outlets and a dust blocking cylinder. The first guide plate is fixed to the bottom between the opposite sides of the front and rear side walls of the inner cavity of the dust storage box, the second guide plate is fixed to the right end between the opposite sides of the front and rear side walls of the inner cavity of the dust storage box, the axial fan is fixed to the right end of the inner top wall of the dust storage box, the fixed frame is fixed to the right end between the opposite sides of the inner top wall and the inner bottom wall of the dust storage box, the filter element is fixed to the inner cavity of the fixed frame, the air outlet is opened at the left end of the upper surface of the dust storage box, and the dust blocking cylinder is arranged in the inner cavity of the air outlet.

[0007] By adopting this technical solution, the collection efficiency of suspended powder during the tableting process is significantly enhanced through the setting of the collection mechanism, effectively avoiding the occurrence of secondary contamination, and greatly simplifying the overall structural form, making it easier to install, debug and manage daily. In addition, by introducing automation elements, it greatly saves human resources while ensuring long-term stable and reliable operating performance.

[0008] Furthermore, an air suction port is provided at the right end of the inner bottom wall of the dust storage box, and the air suction port is located just above the tablet pressing area of ​​the tablet press body.

[0009] By adopting this technical solution, suspended particles can enter the inner cavity of the dust storage box through the air suction port.

[0010] Furthermore, a sealing cover is hingedly connected to the right side of the dust storage box through a door hinge. The size of the sealing cover is larger than the size of the inner cavity of the dust storage box. The sealing cover and the dust storage box are fixed by a connecting rod buckle.

[0011] By adopting this technical solution, the provided sealing cover makes it easier for subsequent staff to clean up the debris in the inner cavity of the dust storage box.

[0012] Furthermore, the cross-sectional shapes of the first guide plate and the second guide plate are both inverted L-shaped, and the size of the second guide plate is larger than that of the first guide plate.

[0013] By adopting this technical solution, the first guide plate and the second guide plate can guide the incoming suspended particles.

[0014] Furthermore, the size of the fixing frame is larger than the size of the inner cavity of the dust storage box, and the number of the air outlets is not less than two and is evenly distributed on the left end of the upper surface of the dust storage box.

[0015] By adopting this technical solution, the clean air after filtration and purification is discharged into the external environment through the air outlet.

[0016] Furthermore, the dust blocking cylinder includes a sealing annular cylinder and a filter plate. The outer diameter of the sealing annular cylinder is adapted to the inner diameter of the air outlet, and the outer diameter of the filter plate is larger than the inner diameter of the air outlet.

[0017] By adopting this technical solution, the dust blocking cylinder can prevent the dust in the inner cavity of the dust storage box 2 from being scattered.

[0018] Furthermore, the vibration mechanism includes a timer, a drive motor, a rotating rod, two rotating rings and two knocking blocks. The timer is fixed to the right end of the upper surface of the dust box, the drive motor is fixed to the right end of the upper surface of the dust box and is located on the left side of the timer, the output shaft of the drive motor passes through the inner top wall of the dust box and extends to the inner cavity of the dust box and is fixed to the rotating rod, the two rotating rings are fixed to the upper and lower ends of the outer surface of the rotating rod, and the two knocking blocks are fixed to the outer surface of the rotating ring.

[0019] By adopting this technical solution, the timing range of the timer can be set, and the controller can be used to control the driving motor to rotate the knocking block, so that the filter element can be knocked, so that the large and difficult-to-decompose objects attached to the surface of the filter element fall to the left end of the dust storage box cavity due to vibration, thereby improving the self-cleaning function of the dust removal device and reducing the subsequent cleaning burden.

[0020] Furthermore, a protective box is provided on the outer surface of the driving motor, and the knocking block performs a circular motion on the outer surface of the rotating rod.

[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0022] 1. The dust removal device of the dust-free tablet press significantly enhances the collection efficiency of suspended powder during the tableting process through the setting of the collection mechanism, effectively avoiding the occurrence of secondary pollution, and greatly simplifies the overall structural form, facilitating installation, commissioning and daily management. In addition, by introducing automation elements, it greatly saves human resources while ensuring long-term stable and reliable operating performance.

[0023] 2. The dust removal device of the dust-free tablet press can set the timing range of the timer and use the controller to control the driving motor to rotate the knocking block, so as to knock the filter element, so that the large and difficult-to-decompose block objects attached to the surface of the filter element fall to the left end of the dust storage box cavity due to vibration, thereby improving the self-cleaning function of the dust removal device and reducing the subsequent cleaning burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the collection mechanism of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the vibration mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the appearance of the dust storage box structure of the present utility model.

[0028] In the figure: 1. Tablet press body; 2. Dust storage box; 3. Collection mechanism; 31. First guide plate; 32. Second guide plate; 33. Axial fan; 34. Fixed frame; 35. Filter element; 36. Air outlet; 37. Dust blocking cylinder; 38. Air suction port; 4. Vibration mechanism; 41. Timer; 42. Drive motor; 43. Rotating rod; 44. Rotating ring; 45. Knocking block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 The dust removal device of the dust-free tablet press in this embodiment includes a tablet press body 1, a dust storage box 2 is fixed to the upper surface of the tablet press body 1, a collection mechanism 3 for collecting dust is provided at the right end of the bottom wall of the dust storage box 2, and a vibration mechanism 4 for improving the self-cleaning ability of the dust removal device is provided at the right end of the upper surface of the dust storage box 2.

[0031] In this embodiment, a sealing cover is hingedly connected to the right side of the dust storage box 2 through a door hinge. The size of the sealing cover is larger than the size of the inner cavity of the dust storage box 2. The sealing cover and the dust storage box 2 are fixed by a connecting rod buckle.

[0032] See also Figure 2In order to improve the collection efficiency of suspended powder, the collection mechanism 3 in this embodiment includes a first guide plate 31, a second guide plate 32, an axial flow fan 33, a fixing frame 34, a filter element 35, a plurality of air outlets 36 and an ash blocking cylinder 37. The first guide plate 31 is fixed to the bottom between the opposite sides of the front and rear walls of the inner cavity of the dust storage box 2, the second guide plate 32 is fixed to the right end between the opposite sides of the front and rear walls of the inner cavity of the dust storage box 2, the axial flow fan 33 is fixed to the right end of the top wall of the dust storage box 2, the axial flow fan 33 is used to reduce noise pollution, and the fixing frame 34 is fixed to the top wall of the dust storage box 2 and the dust blocking cylinder 37. At the right end between the opposite sides of the inner bottom wall, the filter element 35 is fixed in the inner cavity of the fixed frame 34, and can move toward the direction of the filter element 35 as guided by the first guide plate 31 and the second guide plate 32. At this time, when the powder particles pass through the filter element 35 composed of HEPA filter material, most of the pollutants are retained, and the air outlet 36 is opened at the left end of the upper surface of the dust storage box 2, and the dust blocking cylinder 37 is arranged in the inner cavity of the air outlet 36. The clean air after filtration and purification is discharged into the external environment through the air outlet 36. The dust blocking cylinder 37 can prevent the dust in the inner cavity of the dust storage box 2 from being scattered.

[0033] In this embodiment, an air suction port 38 is provided at the right end of the inner bottom wall of the dust storage box 2. The air suction port 38 is located just above the tablet pressing area of ​​the tablet press body 1. After the power switch is turned on, the axial fan 33 generates a strong suction force so that the suspended powder particles in the tablet pressing area are quickly sucked into the air suction port 38. The cross-sectional shape of the first guide plate 31 and the second guide plate 32 are both inverted L-shaped, and the size of the second guide plate 32 is larger than that of the first guide plate 31.

[0034] Among them, the size of the fixed frame 34 is larger than the size of the inner cavity of the dust storage box 2, the number of air outlets 36 is not less than two and is evenly distributed at the left end of the upper surface of the dust storage box 2, and the dust blocking cylinder 37 includes a sealing annular cylinder and a filter plate. The outer diameter of the sealing annular cylinder is adapted to the inner diameter of the air outlet 36, and the outer diameter of the filter plate is larger than the inner diameter of the air outlet 36.

[0035] In addition, the filter element 35 is made of HEPA high-efficiency air filter material and has a high-density microporous structure, which can effectively intercept solid particles with a diameter of less than 0.3 microns.

[0036] It should be noted that the provision of the collecting mechanism 3 significantly enhances the collection efficiency of the suspended powder during the tableting process, effectively avoids the occurrence of secondary pollution, and greatly simplifies the overall structural form, making installation, commissioning and daily management easier.

[0037] See also Figures 3 to 4In order to improve the self-cleaning function of the dust removal device, the vibration mechanism 4 in this embodiment includes a timer 41, a drive motor 42, a rotating rod 43, two rotating rings 44 and two knocking blocks 45. The timer 41 is fixed to the right end of the upper surface of the dust storage box 2, and the drive motor 42 is fixed to the right end of the upper surface of the dust storage box 2 and is located on the left side of the timer 41. The staff can set the timing range of the timer 41. When the interval timed by the timer 41 reaches the set interval time, a signal can be transmitted to the controller. The controller controls the start of the drive motor 42, and the output shaft of the drive motor 42 penetrates It passes through the inner top wall of the dust storage box 2 and extends to the inner cavity of the dust storage box 2 and is fixed to the rotating rod 43. Two rotating rings 44 are fixed to the upper and lower ends of the outer surface of the rotating rod 43. Two knocking blocks 45 are fixed to the outer surface of the rotating ring 44. The output shaft of the driving motor 42 rotates to drive the rotating rod 43 to rotate. The rotation of the rotating rod 43 causes the two rotating rings 44 fixed on its surface to rotate. When the two rotating rings 44 rotate to the left, they can knock the filter element 35, thereby enabling the large pieces of objects that are difficult to decompose attached to the filter element 35 to vibrate and fall to the left end of the inner cavity of the dust storage box 2.

[0038] In this embodiment, a protective box is provided on the outer surface of the driving motor 42 , and the knocking block 45 performs a circular motion on the outer surface of the rotating rod 43 .

[0039] It can be understood that the vibration mechanism 4 is capable of vibrating the large, difficult-to-decompose objects attached to the surface of the filter element 35 into the inner cavity of the dust storage box 2, thereby improving the self-cleaning function of the dust removal device and reducing the subsequent cleaning burden.

[0040] The working principle of the above embodiment is:

[0041] (1) When removing dust from the tablet press body 1, after turning on the power switch, the axial flow fan 33 generates a strong suction force so that the suspended powder particles in the tablet pressing area are quickly sucked into the air inlet 38, and then can move toward the filter element 35 guided by the first guide plate 31 and the second guide plate 32. At this time, when the powder particles pass through the filter element 35 composed of HEPA filter material, most of the pollutants are intercepted, and the clean air after filtration and purification is discharged into the external environment through the air outlet 36. The dust blocking cylinder 37 can prevent the dust in the inner cavity of the dust storage box 2 from being scattered.

[0042] (2) In order to improve the self-cleaning function of the dust removal device and reduce the subsequent cleaning burden, the staff can set the timing range of the timer 41. When the interval time of the timer 41 reaches the set interval time, a signal can be sent to the controller. The controller controls the start of the drive motor 42. The output shaft of the drive motor 42 rotates to drive the rotating rod 43 to rotate. The rotation of the rotating rod 43 causes the two rotating rings 44 fixed on its surface to rotate. When the two rotating rings 44 rotate to the left, they can knock on the filter element 35, thereby causing the large pieces of objects that are difficult to decompose attached to the filter element 35 to vibrate and fall to the left end of the inner cavity of the dust storage box 2.

Claims

1. A dust removal device for a dust-free tablet press, comprising a tablet press body (1), characterized in that: A dust storage box (2) is fixed to the upper surface of the tablet press body (1); a collection mechanism (3) for collecting dust is provided at the right end of the inner bottom wall of the dust storage box (2); and a vibration mechanism (4) for improving the self-cleaning ability of the dust removal device is provided at the right end of the upper surface of the dust storage box (2); The collecting mechanism (3) comprises a first guide plate (31), a second guide plate (32), an axial flow fan (33), a fixing frame (34), a filter element (35), a plurality of air outlets (36) and an ash blocking cylinder (37), wherein the first guide plate (31) is fixed to the bottom between the front and rear side walls of the inner cavity of the dust storage box (2), the second guide plate (32) is fixed to the right end between the front and rear side walls of the inner cavity of the dust storage box (2), the axial flow fan (33) is fixed to the right end of the inner top wall of the dust storage box (2), the fixing frame (34) is fixed to the right end between the inner top wall and the inner bottom wall of the dust storage box (2), the filter element (35) is fixed to the inner cavity of the fixing frame (34), the air outlet (36) is opened at the left end of the upper surface of the dust storage box (2), and the ash blocking cylinder (37) is arranged in the inner cavity of the air outlet (36).

2. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: An air suction port (38) is provided at the right end of the inner bottom wall of the dust storage box (2), and the air suction port (38) is located just above the tablet pressing area of ​​the tablet pressing machine body (1).

3. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: The right side of the dust storage box (2) is hingedly connected to a sealing cover via a door hinge. The size of the sealing cover is larger than the size of the inner cavity of the dust storage box (2). The sealing cover and the dust storage box (2) are fixed via a connecting rod buckle.

4. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: The cross-sectional shapes of the first guide plate (31) and the second guide plate (32) are both inverted L-shaped, and the size of the second guide plate (32) is larger than the size of the first guide plate (31).

5. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: The size of the fixing frame (34) is larger than and adapted to the size of the inner cavity of the dust storage box (2), and the number of the air outlets (36) is not less than two and is evenly distributed at the left end of the upper surface of the dust storage box (2).

6. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: The ash blocking cylinder (37) comprises a sealing annular cylinder and a filter plate. The outer diameter of the sealing annular cylinder is adapted to the inner diameter of the air outlet (36), and the outer diameter of the filter plate is larger than the inner diameter of the air outlet (36).

7. The dust removal device of the dust-free tablet press according to claim 1, characterized in that: The vibration mechanism (4) comprises a timer (41), a drive motor (42), a rotating rod (43), two rotating rings (44) and two knocking blocks (45), wherein the timer (41) is fixed to the right end of the upper surface of the dust storage box (2), the drive motor (42) is fixed to the right end of the upper surface of the dust storage box (2) and is located on the left side of the timer (41), the output shaft of the drive motor (42) passes through the inner top wall of the dust storage box (2) and extends to the inner cavity of the dust storage box (2) and is fixed to the rotating rod (43), the two rotating rings (44) are fixed to the upper and lower ends of the outer surface of the rotating rod (43), and the two knocking blocks (45) are fixed to the outer surface of the rotating ring (44).

8. The dust removal device of the dust-free tablet press according to claim 7, characterized in that: A protective box is provided on the outer surface of the driving motor (42), and the knocking block (45) performs a circular motion on the outer surface of the rotating rod (43).

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