Efficient screening machine for lipoic acid capsule production
By combining airflow cleaning and rotary cleaning mechanisms, the problems of screen clogging and incomplete cleaning in traditional powder screening machines are solved, achieving efficient screening and automated cleaning in the production of thioctic acid capsules and improving production efficiency.
Patent Information
- Application Number
- CN202520329812.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Traditional powder screening machines suffer from problems such as screen clogging, incomplete cleaning, and low automation, which affect the production efficiency of thioctic acid capsules.
It employs an airflow cleaning mechanism and a rotary cleaning mechanism, combined with a high-pressure airflow and negative pressure dust collection design, along with an automated transmission system for the rotary cleaning brush and the screen, to achieve automated cleaning and efficient screening of the screen.
It effectively prevents screen clogging, ensures stable screening efficiency, improves the automation level and production efficiency of the equipment, and simplifies the operation process.
Smart Images

Figure CN223888447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field, and in particular to a high-efficiency powder screening machine for the production of thioctic acid capsules. Background Technology
[0002] In the production of lipoic acid capsules, sieving is a crucial step to ensure that the particle size and purity of the raw materials meet production requirements. Traditional sieving machines typically use vibrating screens, but this method has several significant drawbacks:
[0003] Screen clogging problem: During the screening process, powder can easily clog the screen, leading to a decrease in screening efficiency and even requiring machine shutdown for cleaning, which affects production efficiency.
[0004] Incomplete cleaning: Traditional powder screening machines are usually cleaned manually or with simple airflow, which is difficult to completely remove residual powder from the screen. Long-term use will cause the screen mesh to become smaller, affecting the screening effect.
[0005] Low level of automation: The cleaning and screening processes of traditional powder screening machines mostly rely on manual operation, resulting in low automation, which increases labor costs and operational complexity.
[0006] To address the aforementioned problems, this utility model provides a high-efficiency sieving machine for the production of thioctic acid capsules. By introducing an airflow cleaning mechanism and a rotary cleaning mechanism, it effectively solves the problems of screen clogging and incomplete cleaning, while improving the automation level and production efficiency of the equipment. Utility Model Content
[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0008] Therefore, in order to solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency sieving machine for the production of thioctic acid capsules, including a sieving mechanism and a discharge mechanism;
[0009] The screening mechanism includes a feeding hopper, a screen arranged below the feeding hopper, an airflow cleaning mechanism arranged below the screen, and a rotary cleaning mechanism arranged above the screen.
[0010] The airflow cleaning mechanism includes a cleaning nozzle and a dust collection hood. The cleaning nozzle is equipped with cleaning nozzles and is connected to an air pump. The cleaning nozzle is mounted on a first cleaning slide, which is mechanically connected to a first ball screw. The first ball screw is mechanically connected to a drive motor and is rotatably mounted on a first cleaning slide rail. The dust collection hood is located at the top of the cleaning screen, and a dust collection fan is connected to the top of the dust collection hood. The dust collection fan is connected to a dust collection box through a pipe.
[0011] The rotary cleaning mechanism includes a rotary cleaning brush, which is rotatably mounted on a second cleaning slide. The second cleaning slide is mechanically connected to a second ball screw, which is mechanically connected to a drive motor. The second ball screw is rotatably mounted on a second cleaning slide rail.
[0012] As a preferred embodiment of the high-efficiency sieving machine for the production of thioctic acid capsules described in this utility model, the screen is arranged inside the sieving box, the bottom of the sieving box is connected to the sieving frame by springs, and a vibration motor is arranged on the sieving box.
[0013] In a preferred embodiment of the high-efficiency sieving machine for the production of thioctic acid capsules described in this utility model, the first cleaning slide rail is arranged below the screen, and the working end of the cleaning nozzle is arranged facing the lower surface of the screen.
[0014] As a preferred embodiment of the high-efficiency powder screening machine for the production of thioctic acid capsules described in this utility model, the second cleaning slide rail is arranged above the screen, the surface of the rotating cleaning brush is arranged with brush bristles, the brush bristles are in contact with the upper surface of the screen, and the rotating cleaning brush and the cleaning nozzle are staggered.
[0015] As a preferred embodiment of the high-efficiency powder screening machine for the production of thioctic acid capsules described in this utility model, the drive motor is fixedly connected to the second ball screw, and synchronous pulleys are fixedly connected to both the first and second ball screws, and the two sets of synchronous pulleys are mechanically connected by a synchronous belt.
[0016] As a preferred embodiment of the high-efficiency sieving machine for the production of thioctic acid capsules described in this utility model, wherein: a meshing gear is fixedly connected to the rotating cleaning brush, and a fixed rack assembly is arranged on the second cleaning slide rail to cooperate with the meshing gear, and the meshing gear and the fixed rack assembly are meshed and connected for transmission.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model effectively removes residual powder from the screen by combining an airflow cleaning mechanism and a rotary cleaning mechanism, preventing screen blockage and ensuring continuous and stable screening efficiency. Specifically, the airflow cleaning mechanism, through the combined design of a cleaning nozzle and a dust suction hood, can thoroughly remove powder from the lower surface of the screen by using high-pressure airflow and negative pressure dust suction. The rotary cleaning mechanism's rotating cleaning brush effectively removes residual powder from the screen by contacting the brush bristles with the upper surface of the screen, further ensuring the cleanliness of the screen.
[0019] 2. This utility model has a high degree of automation. Through the transmission system of drive motor, ball screw and synchronous belt, the automatic movement and synchronous operation of the cleaning mechanism are realized, reducing manual intervention and improving the automation level of the equipment. Specifically, the drive motor drives the cleaning slide to move through the ball screw, realizing the automatic reciprocating motion of the cleaning nozzle and the rotating cleaning brush. The synchronous belt connects two sets of synchronous pulleys to ensure the synchronous operation of the first ball screw and the second ball screw, which improves the working efficiency and stability of the cleaning mechanism.
[0020] 3. The rotating cleaning brush of this utility model achieves rotation and movement through the meshing transmission of a meshing gear and a fixed rack assembly, further improving the cleaning effect.
[0021] 4. Through the connection design of the vibrating motor and the spring, the screening box can achieve efficient vibrating screening, which improves screening efficiency and production efficiency; the vibrating motor is connected to the screening box through the spring, realizing high-frequency vibration of the screening box and improving screening efficiency. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0024] Figure 2 This is a side view of the structure of this utility model.
[0025] Figure 3 This is a partial cross-sectional view of the present invention.
[0026] Figure 4 This is a schematic diagram of the airflow cleaning mechanism and the rotary cleaning mechanism of this utility model.
[0027] Figure 5This is a partially enlarged structural diagram of the rotating cleaning mechanism of this utility model.
[0028] In the diagram: 100, screening mechanism; 101, feed hopper; 102, screen; 103, screening box; 104, screening frame; 105, vibrating motor;
[0029] 200. Airflow cleaning mechanism; 201. Cleaning nozzle; 202. Dust hood; 203. Cleaning nozzle; 204. First cleaning slide; 205. First ball screw; 206. First cleaning slide rail; 207. Dust collector; 208. Dust collection box; 209. Air pump;
[0030] 300. Rotary cleaning mechanism; 301. Rotary cleaning brush; 3011. Brush bristles; 302. Second cleaning slide; 303. Second ball screw; 304. Drive motor; 305. Second cleaning slide rail; 306. Synchronous pulley; 307. Synchronous belt; 308. Meshing gear; 309. Fixed rack assembly. Detailed Implementation
[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0034] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0035] Reference Figures 1-5This invention provides an efficient powder screening machine for the production of thioctic acid capsules. The screening mechanism 100 mainly consists of a feed hopper 101, a screen 102, a screening box 103, a screening frame 104, and a vibrating motor 105. The feed hopper 101 is located at the top of the screening mechanism 100 and is used to introduce the thioctic acid powder to be screened. The screen 102 is arranged inside the screening box 103 and is responsible for screening the powder. In order to improve screening efficiency, the bottom of the screening box 103 is flexibly connected to the screening frame 104 by a spring. The screening box 103 is also equipped with a vibrating motor 105, which further promotes the effective screening of powder through vibration, significantly improving production efficiency.
[0036] To maintain the continuous and efficient operation of the screen 102, this embodiment designs an airflow cleaning mechanism 200 and a rotary cleaning mechanism 300. The airflow cleaning mechanism 200 includes a cleaning nozzle 201, a dust suction hood 202, a dust suction fan 207, and a dust collection box 208. Cleaning nozzles 203 are evenly arranged on the cleaning nozzle 201, which is connected to an air pump 209. The working ends of the cleaning nozzles 203 face the lower surface of the screen 102 to blow away residual powder on the screen 102. The cleaning nozzle 201 is mounted on a first cleaning slide 204. The first cleaning slide rail 206 is cleverly arranged below the screen 102; the first cleaning slide 204 is mechanically connected to the first ball screw 205, which is driven to rotate by the drive motor 304 and installed on the first cleaning slide rail 206 to realize the automatic movement of the cleaning nozzle 201; the dust hood 202 is located at the top of the screen 102, and the dust fan 207 is connected to the dust hood 202 and the dust collection box 208 through the pipe to effectively collect the powder blown down and avoid environmental pollution.
[0037] The rotary cleaning mechanism 300 is responsible for cleaning the upper surface of the screen 102, including a rotary cleaning brush 301, a second cleaning slide 302, and a second ball screw 303. The rotary cleaning brush 301 is covered with bristles 3011, which are in close contact with the upper surface of the screen 102. The rotating action removes the powder adhering to the screen 102. The rotary cleaning brush 301 is mounted on the second cleaning slide 305 via the second cleaning slide 302. The second cleaning slide 305 is arranged above the screen 102 and is staggered from the airflow cleaning mechanism 200 to avoid mutual interference. The second cleaning slide 302 is mechanically connected to the second ball screw 303. The second ball screw 303 is also driven by a drive motor 304 and mounted on the second cleaning slide 305 to ensure the automatic movement of the rotary cleaning brush 301.
[0038] To further improve the level of automation, the drive motor 304 is not only directly fixedly connected to the second ball screw 303, but also mechanically connected to the second ball screw 303 through the synchronous pulley 306 and the synchronous belt 307, so as to realize the synchronous operation of the two cleaning mechanisms, reduce manual intervention, and improve the automation level of the equipment. In addition, the rotating cleaning brush 301 is also fixed with a meshing gear 308, which meshes with the fixed rack group 309 arranged on the second cleaning slide rail 305. This design not only ensures the stable movement of the rotating cleaning brush 301, but also makes the equipment structure more compact, easy to operate, and easy to maintain and repair.
[0039] This utility model's high-efficiency powder sieving machine, through the aforementioned design, significantly improves sieving efficiency and cleaning effect. The synergistic action of the airflow cleaning mechanism 200 and the rotary cleaning mechanism 300 thoroughly removes residual powder from the upper and lower surfaces of the screen 102, preventing screen 102 from clogging and ensuring continuous and stable sieving efficiency. Simultaneously, its high degree of automation, compact structure, and ease of operation make this equipment extremely valuable in actual production, effectively improving the production efficiency of thioctic acid capsules.
[0040] The specific implementation steps of this utility model are as follows:
[0041] When using the equipment, the first step is feeding. The raw material for producing thioctic acid capsules is introduced into the screening box 103 through the feed hopper 101. The screening box 103 achieves the vibratory screening function through the drive of the vibrating motor 105 and the elastic connection design of the spring. In this step, the raw material is vibrated inside the screening box 103, allowing powder that meets the particle size requirements to pass smoothly through the screen 102 into the next process, while powder that does not meet the requirements is effectively intercepted by the screen 102.
[0042] After the screening operation is completed, the drive motor 304 connects two sets of synchronous pulleys 306 through the synchronous belt 307 to ensure the synchronous operation of the first ball screw 205 and the second ball screw 303.
[0043] The drive motor 304 starts and drives the first cleaning slide 204 to move along a preset trajectory via the first ball screw 205. The cleaning nozzle 201 is fixed to the first cleaning slide 204, and the cleaning nozzle 203 on it sprays high-pressure airflow onto the lower surface of the screen 102 under the action of the air pump 209. This step effectively removes residual powder from the lower surface of the screen 102 and prevents the screen holes from clogging. At the same time, the dust collection hood 202, through the negative pressure generated by the dust collection fan 207, sucks the powder sprayed by the cleaning nozzle 203 and the powder that falls off the lower surface of the screen 102 into the dust collection box 208, thereby avoiding secondary pollution from the powder.
[0044] While the drive motor 304 is working, it drives the second cleaning slide 302 to move via the second ball screw 303. The rotating cleaning brush 301 is mounted on the second cleaning slide 302 and rotates and moves through the meshing transmission of the meshing gear 308 and the fixed rack group 309. The bristles 3011 of the rotating cleaning brush 301 are in close contact with the upper surface of the screen 102, effectively removing residual powder from the upper surface of the screen 102 through brushing action, further ensuring the cleanliness of the screen 102.
[0045] Throughout the cleaning process, the airflow cleaning mechanism 200 and the rotary cleaning mechanism 300 work together to improve cleaning efficiency and ensure uniform cleaning of the screen 102.
[0046] In summary, this utility model, through precise mechanical transmission and efficient cleaning mechanism design, achieves efficient screening of raw materials and automatic cleaning of screen 102, providing strong technical support for the production of products such as thioctic acid capsules.
[0047] Through the above steps, this invention achieves a highly efficient and automated screening and cleaning process, significantly improving the efficiency and quality of thioctic acid capsule production.
[0048] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.
[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A high-efficiency powder screening machine for the production of thioctic acid capsules, characterized in that: Includes a screening mechanism (100) and a discharge mechanism; The screening mechanism (100) includes a feeding hopper (101), a screen (102) is arranged below the feeding hopper (101), an airflow cleaning mechanism (200) is arranged below the screen (102), and a rotary cleaning mechanism (300) is arranged above the screen (102). The airflow cleaning mechanism (200) includes a cleaning nozzle (201) and a dust collection hood (202). A cleaning nozzle (203) is arranged on the cleaning nozzle (201), and an air pump (209) is connected to the cleaning nozzle (201). The cleaning nozzle (201) is installed on a first cleaning slide (204), and the first cleaning slide (204) is mechanically connected to a first ball screw (205). The first ball screw (205) is mechanically connected to a drive motor (304), and the first ball screw (205) is rotatably installed on a first cleaning slide rail (206). The dust collection hood (202) is arranged at the top of the cleaning screen (102), and a dust collection fan (207) is connected to the top of the dust collection hood (202). The dust collection fan (207) is connected to a dust collection box (208) through a pipe. The rotary cleaning mechanism (300) includes a rotary cleaning brush (301), which is rotatably mounted on a second cleaning slide (302). The second cleaning slide (302) is mechanically connected to a second ball screw (303), which is mechanically connected to a drive motor (304). The second ball screw (303) is rotatably mounted on a second cleaning slide rail (305).
2. The high-efficiency sieving machine for the production of thioctic acid capsules as described in claim 1, characterized in that: The screen (102) is arranged inside the screening box (103). The bottom of the screening box (103) is connected to the screening frame (104) by a spring. A vibration motor (105) is arranged on the screening box (103).
3. The high-efficiency sieving machine for the production of thioctic acid capsules as described in claim 1, characterized in that: The first cleaning slide rail (206) is arranged below the screen (102), and the working end of the cleaning nozzle (203) is arranged facing the lower surface of the screen (102).
4. The high-efficiency sieving machine for the production of thioctic acid capsules as described in claim 1, characterized in that: The second cleaning slide rail (305) is arranged above the screen (102), and the surface of the rotating cleaning brush (301) is provided with bristles (3011). The bristles (3011) are in contact with the upper surface of the screen (102), and the rotating cleaning brush (301) and the cleaning nozzle (203) are arranged in a staggered manner.
5. The high-efficiency sieving machine for the production of thioctic acid capsules as described in claim 1, characterized in that: The drive motor (304) is fixedly connected to the second ball screw (303). Both the first ball screw (205) and the second ball screw (303) are fixedly connected to a synchronous pulley (306). The two sets of synchronous pulleys (306) are mechanically connected by a synchronous belt (307).
6. The high-efficiency sieving machine for the production of thioctic acid capsules as described in claim 1, characterized in that: A meshing gear (308) is fixedly connected to the rotating cleaning brush (301), and a fixed rack assembly (309) is arranged on the second cleaning slide rail (305) to cooperate with the meshing gear (308). The meshing gear (308) and the fixed rack assembly (309) are meshed and connected for transmission.