Circular vibrating screen for powder production

Abstract

The utility model relates to a circular shaking screen for powder production, which comprises a screening mechanism, a top cover is arranged at the top of the screening mechanism, the right end of the top of the top cover is communicated with a feed hopper, a cleaning mechanism is arranged at the top of the top cover, the cleaning mechanism comprises a speed reducing motor, the speed reducing motor is fixedly arranged at the top of the top cover, and the feed hopper is communicated with the feed hopper. The number of the connecting shafts is two, the upper connecting shaft is fixedly installed at the output end of the gear motor, the lower connecting shaft is rotatably installed in the screening mechanism, three driving shafts are connected between the connecting shafts in a clamped mode, and plum blossom clamping grooves are formed in the tops of the driving shafts and the tops of the lower connecting shafts. According to the circular vibrating screen for powder production, through the arrangement of the cleaning mechanism and the screening mechanism, medicine powder attached to the surface of a screening net plate in the screening mechanism is scraped away, meanwhile, disassembly and maintenance of each layer of screening bin are not affected, maintenance is convenient and better, and the screening efficiency and quality are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of circular vibrating screen technology, specifically a circular vibrating screen for powder production. Background Technology

[0002] The circular vibrating screen vibrates in a circular motion with adjustable amplitude. It has a long material screening path, allowing for multi-layer screening and clear separation of various specifications. It has high screening efficiency and is widely used in many industries such as food, chemical, pharmaceutical, metallurgy, and mining. In particular, it can remove foreign objects and substances with inconsistent particle sizes in the screening of pharmaceutical powders, ensuring the quality and efficacy of the medicines.

[0003] In the process of developing this application, the inventors discovered that the technology has at least the following problems: In the screening process of pharmaceutical powders, the existing circular vibrating screens have a high moisture absorption rate due to the small particle size of the powder. During the screening process, the high moisture content of the powder makes it easy for it to adhere to the screen surface, causing screen blockage and affecting screening efficiency and output. Therefore, further improvements are needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a circular vibrating screen for powder production, which has advantages such as easy cleaning and solves the problem of poor screen maintenance of existing circular vibrating screens.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circular vibrating screen for powder production, comprising a screening mechanism, a top cover being provided on the top of the screening mechanism, a feed hopper being connected to the top right end of the top cover, and a cleaning mechanism being provided on the top of the top cover;

[0006] The cleaning mechanism includes a geared motor and connecting shafts. The geared motor is fixedly installed on the top of the top cover. There are two connecting shafts. The upper connecting shaft is fixedly installed on the output end of the geared motor, and the lower connecting shaft is rotatably installed inside the screening mechanism. Three drive shafts are engaged between the connecting shafts. The top of the drive shaft and the top of the lower connecting shaft are provided with a quincunx slot. The bottom of the drive shaft and the bottom of the upper connecting shaft are fixedly installed with quincunx blocks that are compatible with the quincunx slots. A cleaning scraper is fixedly installed on the outside of the drive shaft.

[0007] Furthermore, the screening mechanism includes a base, on the top of which a plurality of support springs are fixedly installed. A support platform is fixedly installed on the top of the support springs. A vibration motor is fixedly installed on the bottom of the support platform. A screening chamber is detachably installed on the top of the support platform. There are four screening chambers, which are detachably stacked and connected to each other. A discharge pipe is connected to one side of each screening chamber. Screening screens are detachably installed inside the three upper screening chambers and below the discharge pipe.

[0008] Furthermore, the top cover is detachably installed on the top of the upper screening chamber, and the cleaning scraper is in contact with the top of the screening screen plate.

[0009] Furthermore, the three drive shafts are rotatably mounted inside the three screening screen plates via bearings, and the connecting shaft below is rotatably mounted on the top of the support platform.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] This circular vibrating screen for powder production, through the setting of cleaning and screening mechanisms, scrapes off the drug powder adhering to the surface of the screening screen plate inside the screening mechanism, without affecting the disassembly and maintenance of each screening chamber, making maintenance more convenient and ensuring screening efficiency and quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the screening mechanism of this utility model;

[0015] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Base; 2. Support spring; 3. Vibration motor; 4. Support platform; 5. Screening bin; 6. Discharge pipe; 7. Screening mesh; 8. Top cover; 9. Feed hopper; 10. Gear motor; 11. Connecting shaft; 12. Drive shaft; 13. Plum blossom slot; 14. Plum blossom block; 15. Cleaning scraper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 In this embodiment, a circular vibrating screen for powder production includes a screening mechanism. The top of the screening mechanism is provided with a top cover 8. The top right end of the top cover 8 is connected to a feed hopper 9. A cleaning mechanism is provided on the top of the top cover 8.

[0019] In this embodiment, the cleaning mechanism includes a reduction motor 10 and a connecting shaft 11. The reduction motor 10 is fixedly installed on the top of the top cover 8. There are two connecting shafts 11. The upper connecting shaft 11 is fixedly installed on the output end of the reduction motor 10, and the lower connecting shaft 11 is rotatably installed inside the screening mechanism. Three drive shafts 12 are engaged between the connecting shafts 11. The top of the drive shaft 12 and the top of the lower connecting shaft 11 are both provided with a plum blossom groove 13. The bottom of the drive shaft 12 and the bottom of the upper connecting shaft 11 are both fixedly installed with plum blossom blocks 14 that are compatible with the plum blossom groove 13. A cleaning scraper 15 is fixedly installed on the outside of the drive shaft 12.

[0020] It should be noted that the drive shaft 12 and the connecting shaft 11 are engaged and driven by the plum blossom slot 13 and the plum blossom block 14, so that they are not affected during the segmented disassembly and maintenance of the screening mechanism.

[0021] Specifically, when the screening mechanism is in operation, the geared motor 10 can be intermittently started to make the upper connecting shaft 11 and the lower connecting shaft 11 drive the three middle driving shafts 12 to rotate, so that the cleaning scraper 15 pushes the powder in the screening mechanism, thereby making the screening uniform and improving the screening effect. When the screening mechanism is not in operation, the geared motor 10 drives the cleaning scraper 15 to scrape off the powder adhering in the screening mechanism, thereby avoiding blockage inside the screening mechanism and ensuring screening efficiency and quality.

[0022] In this embodiment, the screening mechanism includes a base 1, a plurality of support springs 2 are fixedly installed on the top of the base 1, a support platform 4 is fixedly installed on the top of the support springs 2, a vibration motor 3 is fixedly installed on the bottom of the support platform 4, a screening chamber 5 is detachably installed on the top of the support platform 4, there are four screening chambers 5, the four screening chambers 5 are detachably stacked and connected to each other, a discharge pipe 6 is connected to one side of the screening chamber 5, a screening screen plate 7 is detachably installed inside the upper three screening chambers 5 and below the discharge pipe 6, a top cover 8 is detachably installed on the top of the upper screening chambers 5, a cleaning scraper 15 is in contact with the top of the screening screen plate 7, three drive shafts 12 are rotatably installed inside the three screening screen plates 7 respectively through bearings, and a lower connecting shaft 11 is rotatably installed on the top of the support platform 4, the connecting shaft 11 passes through the lower screening screen plate 7 and extends into the lower screening chamber 5.

[0023] The screening chambers 5 are fixed together by bolts and nuts, which allows for easy disassembly and assembly. At the same time, the cleaning mechanism can be operated without affecting the disassembly and maintenance of the screening chambers 5.

[0024] It should be noted that the tops of both the screening screen plate 7 and the support platform 4 are slightly convex arc-shaped, allowing both the screening powder and the sticky cleaning powder to be fed quickly.

[0025] Specifically, when the cleaning mechanism is activated, the top of the screening screen plate 7 can be cleaned to prevent the mesh of the screening screen plate 7 from becoming clogged, thus ensuring screening efficiency and quality.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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 circular vibrating sieve for powder production, characterized in that, Includes a screening mechanism, the top of which is provided with a top cover (8), the top right end of which is connected to a feed hopper (9), and the top of which is provided with a cleaning mechanism; The cleaning mechanism includes a geared motor (10) and a connecting shaft (11). The geared motor (10) is fixedly installed on the top of the top cover (8). There are two connecting shafts (11). The upper connecting shaft (11) is fixedly installed on the output end of the geared motor (10), and the lower connecting shaft (11) is rotatably installed inside the screening mechanism. Three drive shafts (12) are clamped between the connecting shafts (11). The top of the drive shaft (12) and the top of the lower connecting shaft (11) are both provided with a plum blossom slot (13). The bottom of the drive shaft (12) and the bottom of the upper connecting shaft (11) are both fixedly installed with plum blossom blocks (14) that are compatible with the plum blossom slots (13). A cleaning scraper (15) is fixedly installed on the outside of the drive shaft (12).

2. A circular vibrating sieve for powder production according to claim 1, characterized in that: The screening mechanism includes a base (1), a number of support springs (2) are fixedly installed on the top of the base (1), a support platform (4) is fixedly installed on the top of the support springs (2), a vibration motor (3) is fixedly installed on the bottom of the support platform (4), a screening chamber (5) is detachably installed on the top of the support platform (4), there are four screening chambers (5), the four screening chambers (5) are detachably stacked and connected to each other, a discharge pipe (6) is connected to one side of the screening chamber (5), and a screening screen plate (7) is detachably installed inside the upper three screening chambers (5) and below the discharge pipe (6).

3. A circular vibrating sieve for powder production according to claim 2, characterized in that: The top cover (8) is detachably installed on the top of the upper screening chamber (5), and the cleaning scraper (15) is in contact with the top of the screening screen (7).

4. A circular vibrating sieve for powder production according to claim 2, characterized in that: The three drive shafts (12) are rotatably mounted inside the three screening screen plates (7) by bearings respectively, and the lower connecting shaft (11) is rotatably mounted on the top of the support platform (4). The connecting shaft (11) passes through the lower screening screen plate (7) and extends into the lower screening chamber (5).

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