Medicinal powder filtering device of capsule filling machine

Abstract

The utility model provides a medicine powder filtering device of a capsule filling machine, which relates to the technical field of pharmaceutical equipment and comprises a filtering box, a fixed sieve is fixedly mounted on the inner circumference of the top of the filtering box, a first rotating shaft is rotatably connected to one side of the top of the fixed sieve, and crankshafts are arranged at two ends, far away from the fixed sieve, of the first rotating shaft. The end, away from the first rotating shaft, of the crankshaft is rotationally connected with a second rotating shaft, and the end, away from the crankshaft, of the second rotating shaft is rotationally connected with a first connecting rod. According to the powder screening device, on one hand, the multiple screens with different screen mesh numbers are arranged for graded screening, meanwhile, the bouncy balls in the middle interlayer are utilized for multi-stage filtering, the problem that powder with different particle sizes cannot be filtered through a single screen is solved, and therefore the filtering efficiency is improved; on the other hand, by arranging the box door and the box cover which are hinged through the hinge, a user can easily open the device, residual medicine powder is removed, the device is prevented from being blocked, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment technology, and in particular to a powder filtration device for a capsule filling machine. Background Technology

[0002] The powder filtration device in a capsule filling machine is a crucial piece of equipment used to ensure the purity and consistency of the powder during the filling process. Its main function is to filter impurities from the powder, ensuring that the filled powder meets quality standards. Typically, this device uses high-precision sieves or filters. These sieves effectively filter out larger particles or impurities, preventing them from entering the capsules. This type of filtration device is often installed in the powder conveying system, using vibration or airflow to push the powder into the filter and remove unqualified particles or impurities. The filter is usually made of stainless steel, offering excellent corrosion and wear resistance, ensuring stability during long-term use. The powder filtration device not only improves the accuracy and quality of capsule filling but also effectively prevents adverse effects on patient health caused by impurities, meeting the quality control requirements of pharmaceutical production.

[0003] Existing filtration devices often use simple sieves or filter cloths to filter drug powders. However, due to the uneven size of drug powder particles and the fixed pore size of the filter screen, problems such as low filtration efficiency or some powder not being able to pass through are common. This results in larger drug powder particles entering the capsules, affecting the quality of the medicine. At the same time, the design of existing filtration devices is often not convenient for cleaning and maintenance, and drug powder residue is easily accumulated, leading to cross-contamination or affecting the normal operation of the equipment.

[0004] Therefore, we propose a powder filtration device for a capsule filling machine. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. Current filtration devices typically use simple sieves or filter cloths to filter drug powders. However, due to the uneven size of drug powder particles and the fixed pore size of the filter screen, the filtration efficiency may be low, or some powder may not pass through smoothly, allowing larger particles to enter the capsules and affecting the quality of the medicine. At the same time, the design of existing filtration devices often lacks convenient cleaning and maintenance functions, which can easily lead to the accumulation of drug powder residues, causing cross-contamination or affecting the normal operation of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A powder filtration device for a capsule filling machine includes a filter box, a fixed screen is fixedly installed on the inner circumference of the top of the filter box, a first rotating shaft is rotatably connected to one side of the top of the fixed screen, crankshafts are provided at both ends of the first rotating shaft away from the fixed screen, a second rotating shaft is rotatably connected to the end of the crankshaft away from the first rotating shaft, a first connecting rod is rotatably connected to the end of the second rotating shaft away from the crankshaft, and a vibrating screen is rotatably connected to the end of the first connecting rod away from the second rotating shaft.

[0008] Multiple slide rails are fixedly installed on both sides of the inside of the filter box. A slider is slidably connected inside the slide rail. A screen is fixedly connected to the side of the slider away from the slide rail. Two screens are vertically distributed, and multiple elastic balls are provided in the interlayer between the two screens.

[0009] Preferably, the mesh counts of the two screens increase sequentially from top to bottom, and the mesh count of the fixed screen is greater than that of the vibrating screen.

[0010] Preferably, both ends of the fixed screen are rotatably connected to a second connecting rod, and the end of the second connecting rod away from the fixed screen is rotatably connected to a fixed seat, which is fixedly installed at the bottom of the vibrating screen.

[0011] Preferably, the filter box has a movable opening on the side near the screen, and a door is provided on one side of the movable opening. The door is hinged to the filter box.

[0012] Preferably, a handle is fixedly installed on the side of the door away from the filter box.

[0013] Preferably, the top of the filter box is hinged to a box cover, and the top of the box cover is fixedly connected to a feed hopper.

[0014] Preferably, a fixing ring is fixedly installed on the outer periphery of the filter box, and multiple support legs are fixedly installed on the bottom of the fixing ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, on the one hand, multiple sieves with different mesh sizes are used for grading and screening, while the elastic balls in the middle layer utilize multi-stage filtration to avoid the problem that a single sieve cannot filter powders of different particle sizes, thereby improving filtration efficiency; on the other hand, the hinged door and cover allow users to easily open the equipment to remove residual powder and prevent clogging, which helps extend the service life of the equipment. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a powder filtration device for a capsule filling machine provided by this utility model;

[0018] Figure 2 One of the overall structural cross-sectional views of a powder filtering device for a capsule filling machine provided by this utility model;

[0019] Figure 3 A second cross-sectional view of the overall structure of a powder filtration device for a capsule filling machine provided by this utility model;

[0020] Figure 4 A disassembled diagram of the vibrating screen structure of a medicine powder filtering device for a capsule filling machine provided by this utility model.

[0021] Legend: 1. Filter box; 2. Fixed screen; 3. First rotating shaft; 4. Crankshaft; 5. Second rotating shaft; 6. First connecting rod; 7. Vibrating screen; 8. Slide rail; 9. Sliding block; 10. Screen; 11. Elastic ball; 12. Second connecting rod; 13. Fixed seat; 14. Box door; 15. Box cover; 16. Feed hopper; 17. Fixed ring; 18. Support leg. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Example

[0027] like Figure 1-4 As shown, this utility model provides a technical solution: a powder filtration device for a capsule filling machine, including a filter box 1, a fixed screen 2 fixedly installed on the inner circumference of the top of the filter box 1, a first rotating shaft 3 rotatably connected to one side of the top of the fixed screen 2, and crankshafts 4 provided at both ends of the first rotating shaft 3 away from the fixed screen 2 to convert the rotational motion into a more complex reciprocating motion. A second rotating shaft 5 is rotatably connected to the end of the crankshaft 4 away from the first rotating shaft 3, a first connecting rod 6 is rotatably connected to the end of the second rotating shaft 5 away from the crankshaft 4, and a vibrating screen 7 is rotatably connected to the end of the first connecting rod 6 away from the second rotating shaft 5 to filter larger powder particles and provide preliminary screening for the subsequent screening work of the fixed screen 2;

[0028] Multiple slide rails 8 are fixedly installed on both sides of the inside of the filter box 1 to ensure that the slider 9 can slide freely inside without being affected by excessive friction, thus ensuring that the equipment operates smoothly and efficiently. The slider 9 is slidably connected inside the slide rail 8, and a screen 10 is fixedly connected to the side of the slider 9 away from the slide rail 8. The two screens 10 are vertically distributed, and multiple elastic balls 11 are set in the interlayer of the two screens 10. During the screening process, their elastic vibration helps to accelerate the filtration of the powder on the surface of the screen 10.

[0029] The mesh counts of the two screens 10 increase sequentially from top to bottom. During the screening process, larger particles are first intercepted by the upper screen 10, while smaller particles pass through the upper screen 10 and enter the lower screen 10, ensuring the fineness and efficiency of screening. The mesh count of the fixed screen 2 is greater than that of the vibrating screen 7. Both ends of the fixed screen 2 are rotatably connected to a second connecting rod 12. The end of the second connecting rod 12 away from the fixed screen 2 is rotatably connected to a fixed seat 13. The fixed seat 13 is fixedly installed at the bottom of the vibrating screen 7. A movable opening is provided on the side of the filter box 1 closest to the screen 10 for easy access and removal of the screen 10 that needs to be replaced and cleaned. A door 14 is provided, which can be opened or closed freely. After screening, the staff can quickly clean the inside of the filter box to ensure the efficient operation of the equipment. The door 14 is hinged to the filter box 1. A handle is fixedly installed on the side of the door 14 away from the filter box 1. The top of the filter box 1 is hinged to the cover 15. The top of the cover 15 is fixedly connected to the feed hopper 16. A fixing ring 17 is fixedly installed on the outer periphery of the filter box 1 to enhance the overall structural stability of the filter box 1. Multiple support legs 18 are fixedly installed at the bottom of the fixing ring 17 to support the filter box 1, keep it stable, and prevent the equipment from shifting or tilting during vibration.

[0030] The working process of this utility model:

[0031] Step 1: The powder enters the filter box 1 from the feed hopper 16. The powder will first pass through the vibrating screen 7 for preliminary screening. The vibrating screen 7 has a small mesh size and mainly filters larger powder particles to ensure that larger particles cannot enter the subsequent filtration stage.

[0032] Step two: The powder passing through the vibrating screen 7 enters the fixed screen 2. The vibrating screen 7 helps the powder pass through the screen 10 by vibrating. The vibration effect can effectively prevent the powder from clogging the screen and filter smaller particles through the finer screen 10. At the same time, the mesh size of the two screens 10 increases from top to bottom, so that the powder can be further refined and filtered. The elastic ball 11 set between the two screens 10 can bounce up and down when the powder reaches the screen 10, further accelerating the filtration speed. Meanwhile, the mesh size of the screen 10 is greater than that of the fixed screen 2, so that the device can further filter out the fine particles in the powder and ensure that the particle size of the powder screened out is consistent.

[0033] Step 3: After the filtration work of screen 10 is completed, the filtered medicine powder is collected at the bottom of the equipment. At this time, the vibration and internal structure design of the equipment ensure that the medicine powder does not remain on the screen for a long time, thereby avoiding accumulation and cross-contamination. Through the easy-to-open and close box door 14 and box cover 15, users can clean and maintain the equipment in a timely manner, keep the equipment running normally, and ensure that the quality of medicines is not affected.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for filtering a powder of a medicine for a capsule filling machine, comprising a filtering box (1), characterized in that: A fixed screen (2) is fixedly installed on the inner circumference of the top of the filter box (1). A first rotating shaft (3) is rotatably connected to one side of the top of the fixed screen (2). A crankshaft (4) is provided at both ends of the first rotating shaft (3) away from the fixed screen (2). A second rotating shaft (5) is rotatably connected to one end of the crankshaft (4) away from the first rotating shaft (3). A first connecting rod (6) is rotatably connected to one end of the second rotating shaft (5) away from the crankshaft (4). A vibrating screen (7) is rotatably connected to one end of the first connecting rod (6) away from the second rotating shaft (5). Multiple slide rails (8) are fixedly installed on both sides of the inside of the filter box (1). A slider (9) is slidably connected inside the slide rail (8). A screen (10) is fixedly connected to the side of the slider (9) away from the slide rail (8). Two screens (10) are vertically distributed. Multiple elastic balls (11) are provided in the interlayer between the two screens (10).

2. A device for filtering powder according to claim 1, characterized in that: The mesh counts of the two screens (10) increase sequentially from top to bottom, and the mesh count of the fixed screen (2) is greater than that of the vibrating screen (7).

3. A device for filtering powder according to claim 2, characterized in that: The fixed screen (2) is rotatably connected to both ends of a second connecting rod (12), and a fixed seat (13) is rotatably connected to the end of the second connecting rod (12) away from the fixed screen (2). The fixed seat (13) is fixedly installed at the bottom of the vibrating screen (7).

4. A filter device for powder medicaments for capsule filling machines according to claim 1, characterized in that: The filter box (1) has a movable opening on the side near the screen (10), and a door (14) is provided on one side of the movable opening. The door (14) is hinged to the filter box (1) by a hinge.

5. A device for filtering powder according to claim 4, characterized in that: A handle is fixedly installed on the side of the box door (14) away from the filter box (1).

6. A filter device for powder medicaments for capsule filling machines according to claim 1, characterized in that: The top of the filter box (1) is hinged to a box cover (15), and the top of the box cover (15) is fixedly connected to a feed hopper (16).

7. A filter device for powder according to claim 1, characterized in that: A fixing ring (17) is fixedly installed on the outer periphery of the filter box (1), and a plurality of support legs (18) are fixedly installed on the bottom of the fixing ring (17).

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