Blowing dust removal device for grain counting machine vibration disc feeding station

Abstract

The invention relates to the technical field of blowing dust removal equipment for a vibration disc of a particle counting machine, in particular to a blowing dust removal device for a feeding station of the vibration disc of the particle counting machine, which comprises a dust collection connecting pipe fitting and a pneumatic quick-plug connector which are arranged on an acrylic shield above the feeding station of the vibration disc of the particle counting machine. And a fixed blowing airflow direction can be effectively prevented from being formed.

Description

Technical Field

[0001] This application relates to the technical field of dust removal equipment for vibratory feeders of counting machines, and particularly to a dust removal device for the feeding station of a vibratory feeder in a counting machine. Background Technology

[0002] The statements in this section are merely background information related to this application and do not necessarily constitute prior art.

[0003] Currently, electronic tablet counters are the mainstream product in the field of solid dosage form packaging, used to automatically and accurately count and fill various granular drugs such as tablets and capsules into medicine bottles.

[0004] The working principle of an electronic granule counter: The material to be packaged is placed into the hopper. A three-stage electromagnetic vibrating plate separates and arranges the material in an orderly manner, which then enters the detection and counting channel equipped with infrared emitting and receiving circuits. The infrared light is blocked by the material and cannot be received by the receiving circuit, generating counting pulses. After counting, the material passes through a gate and falls into a medicine bottle via a granule guide. When the count reaches the preset amount, the gate at the bottom of the channel closes, completing the single-bottle counting and filling process.

[0005] Because uncoated tablets generate dust during counting, this dust accumulates on the viewing window of the photoelectric particle counting sensor, leading to a continuous decrease in transmission and reception intensity. Traditional dust removal methods involve slits in each stainless steel vibrating disc, allowing dust to fall into a collection trough. The three-stage vibrating disc collection troughs are connected in series via negative pressure suction pipes. However, this method only addresses a small portion of larger particles. The dust obscuring the viewing window is often smaller, finer, and more adherent. Prolonged dust accumulation affects the counting accuracy of the acquisition system, threatening the quality of the pharmaceutical products.

[0006] Therefore, it is necessary to provide a dust removal and cleaning device for the vibratory feed station of a counting machine to solve the above-mentioned technical problems. Summary of the Invention

[0007] Based on this, and in response to the aforementioned technical problems, this application provides a blowing and dust removal device for the vibratory feed station of a pellet counter.

[0008] The technical solution adopted in this application to solve the problems existing in the prior art is: This application discloses a dust removal and cleaning device for the vibratory feed station of a pellet counter, comprising: The dust collection connection pipe and pneumatic quick-connect fitting are located on the acrylic protective cover above the vibratory feed station of the counting machine, wherein: A bottom negative pressure groove is formed below the acrylic cover, and the dust collection connection pipe is connected to the bottom negative pressure groove; A columnar channel is formed on the side of the bottom negative pressure groove on the acrylic cover, and plugs are provided at both ends of the columnar channel; the columnar channel is connected to the pneumatic quick-connect connector; The columnar channel is equipped with several air blowing holes, through which air is blown onto the vibrating plate of the counting machine. Vacuum fittings are used to connect to vacuum equipment; Pneumatic quick-connect couplings are used to connect to clean compressed air.

[0009] Preferably, The central axis of the columnar channel is lower than the plane where the bottom of the negative pressure groove is located.

[0010] Preferably, The columnar channel blows air onto the vibrating plate of the counting machine through the air blowing hole in a downward direction.

[0011] Preferably, An airflow guiding component is installed inside the air blowing hole.

[0012] Preferably, All airflow guiding components are axial flow air blowing components.

[0013] Preferably, The axial flow air blowing component includes a first outer ring that is bonded to the blowing hole. A fixed shaft is provided at the center of the first outer ring, and the two ends of the fixed shaft are fixedly connected to the first outer ring through several connecting rods. A rotating cylinder is mounted on the outer side of the fixed shaft, and several axial flow fan blades are mounted outside the rotating cylinder.

[0014] Preferably, All airflow guiding components are flip-type airflow blowing parts.

[0015] Preferably, The flipping airflow blowing component includes a second outer ring that is bonded to the blowing hole. The second outer ring is provided with a flipping shaft, and the two ends of the flipping shaft are respectively rotatably disposed in the through holes on both sides of the second outer ring. A rotating disc is fixed on the flipping shaft.

[0016] Preferably, The flipping shaft passes through the center of the second outer ring; the flipping shaft is located on the diameter of the rotating disk.

[0017] Preferably, The airflow guiding assembly includes a tumbling airflow blowing component and an axial flow airflow blowing component, which are spaced apart.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: 1. The dust removal device is made of high-strength polypropylene block: a milling machine is used to machine a hole through the block to open up the air blowing and dust suction passages; a stepped surface is milled on the top and suspended on an acrylic cover above the slotted vibrating plate of the counting machine. The air blowing and dust suction passages are connected to the air source and dust suction equipment respectively, and the two complement each other to ensure efficient dust removal at the vibrating plate station of the counting machine.

[0019] 2. By installing an airflow guiding component inside the air hole 8, a fixed airflow direction can be effectively prevented. Traditional airflow methods with only the air hole 8 tend to create a fixed blowing direction, causing dust to flow and accumulate in a fixed direction. Although the suction connection pipe 1 can remove some dust, some "dead corners" remain, leading to dust accumulation and affecting usability over time. By installing the airflow guiding component inside the air hole 8, the airflow direction can be adjusted in real time, effectively solving the problem of "dead corners" where dust accumulates. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] Figure 1 This is a triaxial side view of a blowing and dust removal device for a vibratory feeder station of a pellet counter according to this application; Figure 2 for Figure 1 Perspective view; Figure 3 for Figure 1 Diagram of actual application scenario; Figure 4 A schematic diagram of the air blowing hole arrangement on the negative pressure groove in one embodiment; Figure 5 This is a schematic diagram of the overall structure of the first air blowing component; Figure 6 This is a schematic diagram of the overall structure of the second air blowing component.

[0022] In the picture: 1. Vacuum suction connection fitting; 2. Through hole from the top of the long side to the inner cavity; 3. Pneumatic quick-connect fitting; 4. Through holes on both sides of the short side; 5. Hexagonal plugs on both sides of the short side; 6. Bottom negative pressure groove; 7. Bottom air blowing slope; 8. Air inlet; 80. Axial flow air blowing component; 800. First outer ring; 801. Fixed shaft; 803. Connecting rod; 804. Rotary drum; 805. Axial flow fan blade; 81. Tilting airflow blowing component; 810. Rotating disc; 811. Second outer ring; 812. Through hole; 9. Acrylic protective cover; 10. Side plate of the counting machine; 11. Vibrating plate of the counting machine. Detailed Implementation

[0023] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationship of the various components or elements in this disclosure, and do not specifically refer to any component or element in this disclosure, nor should they be construed as limiting this disclosure.

[0026] This application discloses a dust removal and cleaning device for the vibratory feed station of a pellet counter, referencing... Figures 1 to 3 It includes a dust suction connecting pipe 1 and a pneumatic quick-connect fitting 3, which are installed on the acrylic protective cover 9 above the vibratory feed station of the counting machine, wherein: A bottom negative pressure groove 6 is formed below the acrylic protective cover 9, and the dust suction connecting pipe 1 is connected to the bottom negative pressure groove 6; A columnar channel is formed on the side of the bottom negative pressure groove 6 on the acrylic protective cover 9, and plugs 5 are provided at both ends of the columnar channel; the columnar channel is connected to the pneumatic quick connector 3; The columnar channel is provided with several air blowing holes 8, through which air is blown onto the vibrating plate 11 of the counting machine; the dust collection connection pipe 1 is used to connect with the dust collection equipment; the pneumatic quick-connect fitting 3 is used to connect with clean compressed air.

[0027] In some embodiments, the central axis of the columnar channel is lower than the plane where the bottom of the bottom negative pressure groove 6 is located. The direction of air blowing from the columnar channel onto the counting machine vibratory plate 11 through the air blowing hole 8 is obliquely downward.

[0028] See again Figures 4 to 6 In some embodiments, the air vent 8 is provided with an airflow guiding component.

[0029] In some embodiments, all airflow guiding components are axial flow air blowing elements 80. (Reference) Figure 5The axial flow air blowing component 80 includes a first outer ring 800 bonded to the blowing hole 8. A fixed shaft 801 is provided at the center of the first outer ring 800. The two ends of the fixed shaft 801 are fixedly connected to the first outer ring 800 through several connecting rods 803. A rotating cylinder 804 is rotatably sleeved on the middle of the fixed shaft 801. Several axial flow fan blades 805 are provided on the outside of the rotating cylinder 804.

[0030] In some embodiments, all airflow guiding components are flip-type airflow blowing elements 81, see reference. Figure 6 The flipping airflow blowing component 81 includes a second outer ring 811 bonded to the blowing hole 8. A flipping shaft is provided inside the second outer ring 811, with both ends of the flipping shaft rotatably disposed within through holes 812 on both sides of the second outer ring 811. A rotating disk 810 is fixedly mounted on the flipping shaft. The flipping shaft passes through the center of the second outer ring 811 and is located on the diameter of the rotating disk 810.

[0031] In other embodiments, the airflow guiding assembly includes a tumbling airflow blowing element 81 and an axial flow airflow blowing element 80, which are spaced apart.

[0032] By incorporating an airflow guiding component within the air outlet 8, a fixed airflow direction can be effectively prevented. Traditional airflow methods with only the air outlet 8 tend to create a fixed blowing direction, causing dust to flow and accumulate in a fixed direction. Although the suction connection pipe 1 can remove some dust, some "dead zones" remain, leading to dust accumulation and affecting usability over time. By incorporating an airflow guiding component within the air outlet 8, the airflow direction can be adjusted in real time, effectively solving the aforementioned "dead zone" dust accumulation problem.

[0033] This application provides two types of airflow guiding components: a flip-type airflow blowing component 81 and an axial-flow airflow blowing component 80. During use, both components can change the direction of airflow through the blowing hole 8, whether it is the rotation of the rotating disk 810 or the axial fan blade 805, thereby solving the above-mentioned technical problems.

[0034] However, if all airflow guiding components are selected as axial flow air blowing elements 80, or if all airflow guiding components are selected as flipping air blowing elements 81, the following drawbacks exist: If the air pressure of clean compressed air is constant and the structure of the airflow guiding components is the same, the entire airflow guiding system will reach a "steady state" after long-term use. That is, the purging intensity, airflow turbulence direction, and rotation speed of all airflow guiding components are constant. This state often occurs in large, long-term use workplaces, especially 24-hour operation. Under these conditions, the aforementioned "dead zone" problem of dust accumulation may still occur.

[0035] For the reasons stated above, in the last embodiment provided in this application, the airflow guiding component includes a tumbling airflow blowing component 81 and an axial flow airflow blowing component 80, which are spaced apart. Since the axial flow airflow blowing component 80 and the tumbling airflow blowing component 81 have different physical structures, their airflow throughput and airflow reversal angles are also inconsistent. When one airflow guiding component rotates, it will "disturb" the other airflow guiding component, preventing it from reaching a "steady state," thus effectively solving the aforementioned problem.

[0036] The specific implementation situation is as follows: To address the issue of dust generation during the counting and packaging process of existing unpackaged tablets, which obscures the optical display window and reduces its acquisition accuracy, a dust removal and blowing device is designed for the vibratory feed station of the counting machine. A groove is cut into the acrylic cover above the second-stage vibratory plate of the counting machine. A high-strength polypropylene block is used, and the top stepped surface is milled. A central opening penetrates the block, and a dust collection connection pipe 1 is installed at the opening. A long side top opening penetrates 2 / 3 of the block's internal cavity to form a through hole 2 from the top of the long side to the internal cavity. A pneumatic quick-connect fitting 3 is installed at the opening. Openings 4 on both sides of the short side of the block penetrate and intersect with the cavity of the opening at the top of the long side. Hexagonal plugs 5 are installed at the openings on both sides of the short side. A negative pressure groove 6 is milled at the bottom of the block. The bottom of the opening side of the long side is retained, and the edge of the groove maintains a 1 cm safety distance from the penetration point of the long side opening. A chamfer is formed at the bottom of the opening side of the long side to form a bevel 7. Air blowing holes 8 are evenly opened and intersect with the cavity of the openings 4 on both sides of the short side of the block. From this point on, the air blowing passage runs from the pneumatic quick-connect fitting 3 to the bottom air blowing slope 7. The pneumatic quick-connect fitting 3 is connected to clean compressed air for blowing away dust from the powder of the medicine tablets. The dust collection connection fitting 1 is connected to the dust collection equipment for collecting and removing dust raised by the vibrating plate station.

[0037] For example, an uncoated compound sulfamethoxazole tablet weighs approximately 0.5313g, is 5mm thick, and has a diameter of 11mm. The dust removal device is installed at a height of 25mm, which is the distance from the bottom of the air-blowing ramp to the vibrating plate. When the tablets are conveyed by the vibrating plate, the surface powder is shaken off. By adjusting the pneumatic needle valve to a pressure of 0.1MPa, the dust is blown up without affecting the orderly movement of the tablets on the vibrating plate. The raised dust is then collected by a dust collection system with a wind speed of 9-11m / s. Before this invention, the electronic tablet counter head needed to be cleaned every 2 hours to ensure counting accuracy; after implementation, no cleaning is required per shift. Each shift produces 2.25 million tablets over 6 hours, and the amount of dust collected in the dust collection system is 0.10-0.12kg.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A dust removal and blowing device for the vibratory feed station of a pellet counter, characterized in that: include: The dust collection connection pipe (1) and the pneumatic quick-connect fitting (3) are installed on the acrylic protective cover (9) above the vibratory feeder station of the counting machine, wherein: A bottom negative pressure groove (6) is formed below the acrylic protective cover (9), and the dust suction connecting pipe (1) is connected to the bottom negative pressure groove (6); A columnar channel is formed on the side of the bottom negative pressure groove (6) on the acrylic protective cover (9), and plugs (5) are provided at both ends of the columnar channel; the columnar channel is connected to the pneumatic quick connector (3); The columnar channel is provided with several air blowing holes (8), and the columnar channel blows air onto the vibrating plate (11) of the counting machine through the air blowing holes (8); A vacuum connection fitting (1) is used to connect to a vacuuming facility; The pneumatic quick-connect fitting (3) is used to connect to clean compressed air.

2. The dust removal and blowing device for the vibratory feeder station of a pellet counter according to claim 1, characterized in that: The central axis of the columnar channel is lower than the plane at the bottom of the negative pressure groove (6).

3. A dust removal and blowing device for the vibratory feeder station of a pellet counter according to claim 2, characterized in that: The columnar channel blows air through the air hole (8) onto the vibrating plate (11) of the counting machine in an oblique downward direction.

4. The dust removal and blowing device for the vibratory feeder station of a pellet counter according to claim 3, characterized in that: An airflow guiding component is provided inside the air blowing hole (8).

5. A dust removal and blowing device for the vibratory feeder station of a pellet counter according to claim 4, characterized in that: All airflow guiding components are axial flow air blowing components (80).

6. A dust removal and blowing device for a vibratory feeder station of a pellet counter according to claim 5, characterized in that: The axial flow air blowing component (80) includes a first outer ring (800) bonded to the blowing hole (8). A fixed shaft (801) is provided at the center of the inner side of the first outer ring (800). The two ends of the fixed shaft (801) are fixedly connected to the first outer ring (800) through several connecting rods (803). A rotating cylinder (804) is rotatably sleeved on the middle of the fixed shaft (801), and several axial flow fan blades (805) are provided outside the rotating cylinder (804).

7. A dust removal and blowing device for a vibratory feeder station of a pellet counter according to claim 4, characterized in that: All airflow guiding components are flip-type airflow blowing components (81).

8. A dust removal and blowing device for a vibratory feeder station of a pellet counter according to claim 4, characterized in that: The flipping airflow blowing component (81) includes a second outer ring (811) bonded to the blowing hole (8). The second outer ring (811) is provided with a flipping shaft, and the two ends of the flipping shaft are respectively rotatably disposed in the through holes (812) on both sides of the second outer ring (811). A rotating disk (810) is fixed on the flipping shaft.

9. A dust removal and blowing device for a vibratory feeder station of a pellet counter according to claim 6, characterized in that: The flipping shaft passes through the center of the second outer ring (811); the flipping shaft is located on the diameter of the rotating disk (810).

10. A dust removal and blowing device for a vibratory feeder station of a pellet counter according to claim 4, characterized in that: The airflow guiding assembly includes a flip-type airflow blowing element (81) and an axial-flow airflow blowing element (80), which are spaced apart.

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