Grading screening machine for rhizoma bletillae freeze-dried powder
By using vibration screening and multi-stage sieving discs, the problems of incomplete screening and difficult maintenance of traditional Bletilla striata freeze-dried powder grading and sieving machines have been solved, achieving efficient and accurate separation of Bletilla striata freeze-dried powder and improved stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU AGRI VOCATIONAL COLLEGE
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional methods for grading and screening Bletilla striata freeze-dried powder have problems such as incomplete screening and difficulty in maintaining the equipment, which affect product uniformity and production efficiency.
The device employs a vibration screening method, combining primary, secondary, and tertiary particle size screening discs. The screening device is driven by a vibration component to perform multi-stage screening and is designed with a detachable structure for easy maintenance and cleaning.
It achieves precise separation of Bletilla striata freeze-dried powder, improves product uniformity and stability, simplifies equipment maintenance, and enhances production efficiency.
Smart Images
Figure CN224208526U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of Bletilla striata freeze-dried powder processing technology, and more specifically relates to a Bletilla striata freeze-dried powder grading and screening machine. Background Technology
[0002] Bletilla striata, also known as Baiji, Gan Gen, Baige, Zhu Lan, and Zi Lan, is an orchid with significant medicinal value. Its rhizome is used in traditional Chinese medicine, possessing astringent, hemostatic, anti-inflammatory, and tissue-regenerating properties, primarily used to treat hemoptysis, hematemesis, hematochezia, and other ailments. The Bletilla striata gum in its stem has anti-aging, thickening, suspending, and moisturizing properties, making it widely applicable in the pharmaceutical and cosmetic industries. Freeze-dried Bletilla striata powder is a product obtained after a series of processing steps. Freeze-drying maximizes the preservation of the original bioactive components of Bletilla striata, making it important in the pharmaceutical and health product industries. Grading and sieving are crucial steps in the production of freeze-dried Bletilla striata powder, directly affecting product quality and performance. However, traditional grading and sieving methods for freeze-dried Bletilla striata powder have many drawbacks.
[0003] 1. Uneven mixing: Some powder screening equipment uses gravity screening. Since the mass of Bletilla striata freeze-dried powder is relatively small, incomplete screening may occur during the gravity screening process, resulting in freeze-dried powders of different particle sizes being mixed together, which affects the uniformity and stability of the product.
[0004] 2. Difficult to maintain and prone to clogging: Moreover, after screening, the device is not easy to maintain, the screen is prone to clogging, and cleaning is difficult, which seriously affects production efficiency.
[0005] Therefore, in order to improve the quality and production efficiency of Bletilla striata freeze-dried powder and meet market demand, it is necessary to develop a new type of Bletilla striata freeze-dried powder grading and screening machine. Utility Model Content
[0006] In view of this, the present invention provides a Bletilla striata freeze-dried powder grading and screening machine, which solves the problems of incomplete screening, difficult maintenance of equipment, and inability to meet the requirements of high precision and high efficiency production in the existing technology for grading and screening Bletilla striata freeze-dried powder.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A Bletilla striata freeze-dried powder grading and screening machine includes a base, a discharge bin, a vibration assembly, and a grading and screening device. The discharge bin is fixed above the base, with a hollow support column connected to its upper end, which is connected to the grading and screening device. The vibration assembly is sleeved on the outside of the support column, with its upper end fixedly connected to the grading and screening device and its lower end fixedly connected to the discharge bin. The grading and screening device has a feed inlet at its top, and its interior contains a primary particle size screening disc, a secondary particle size screening disc, and a tertiary particle size screening disc arranged evenly from top to bottom.
[0009] Furthermore, a shock-absorbing rubber pad is provided at the bottom of the base.
[0010] Furthermore, the discharge hopper is configured as a pull-out structure with a handle on the side.
[0011] Furthermore, the top of the support column is connected to the bottom wall of the grading and screening device by a rubber pad.
[0012] Furthermore, the vibration assembly includes four sets of damping springs, a connecting plate, and a drive unit; the four sets of damping springs are respectively fixed at the four corners of the discharge hopper, and the top is fixedly connected to the connecting plate. The connecting plate has a through hole in the middle and is sleeved on the outside of the support column; the diameter of the through hole is larger than the diameter of the support column; the connecting plate is fixedly connected to the bottom of the grading and screening device; one side of the connecting plate is connected to the drive unit through a connecting rod.
[0013] Furthermore, the drive unit includes a motor and a rotating shaft; the motor is fixedly mounted on the base; one end of the rotating shaft is fixedly connected to the output shaft of the motor, and the other end is fixedly connected to the connecting rod; the center line of the rotating shaft is set at an acute angle to the center line of the output shaft of the motor.
[0014] Furthermore, the primary particle size screening disc, the secondary particle size screening disc, and the tertiary particle size screening disc all include a screen frame and a screen mesh, with the mesh aperture decreasing sequentially; the inner wall of the grading and screening device is provided with three sets of limiting grooves along the axial direction for engaging the primary particle size screening disc, the secondary particle size screening disc, and the tertiary particle size screening disc.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention provides a grading and sieving machine for Bletilla striata freeze-dried powder, employing a vibration screening method. Compared to traditional gravity screening, this effectively overcomes the problem of incomplete screening caused by the small particle size of the freeze-dried powder. Through layered screening by primary, secondary, and tertiary particle size sieving discs, freeze-dried powders of different particle sizes can be precisely separated, greatly improving product uniformity and stability. This ensures the quality stability, efficacy consistency, and safety indicators of Bletilla striata freeze-dried powder in applications in the daily chemical, medical, and pharmaceutical industries. The movable design of each sieving disc in the grading and screening device facilitates daily maintenance and repair by operators. Furthermore, when the screens become clogged, they can be quickly removed for cleaning, effectively solving the problem of difficult screen cleaning, reducing equipment maintenance time, and thus significantly improving production efficiency. The uniformly distributed mesh size of each sieving disc allows for selection of different aperture sizes according to varying powder requirements, enabling the grading and sieving machine to flexibly adapt to diverse production needs and meet the different particle size requirements of various customers for Bletilla striata freeze-dried powder, expanding the equipment's application range. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0018] Figure 1 This is a front view of the present invention.
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0020] Figure 3 Rear view of this utility model.
[0021] In the figure:
[0022] 1-Base; 2-Support column; 3-Connecting plate; 4-Motor; 5-Limiting groove; 6-Shock-absorbing spring; 7-Grading and screening device; 8-First-stage particle size screening disc; 9-Second-stage particle size screening disc; 10-Third-stage particle size screening disc; 11-Inlet; 12-Handle; 13-Connecting rod; 14-Discharge hopper; 15-Rotating shaft. Detailed Implementation
[0023] 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.
[0024] Please see the appendix Figure 1-3 This utility model provides a Bletilla striata freeze-dried powder grading and screening machine, including a base 1, a discharge hopper 14, a vibration component and a grading and screening device 7.
[0025] The base 1 is used to support the entire equipment. The bottom is equipped with shock-absorbing rubber pads to maintain a stable working state, effectively absorb the vibration generated when the sieving machine is working, and avoid abnormal movement trajectory of materials on the screen due to excessive vibration amplitude, thereby improving sieving accuracy and ensuring sieving effect.
[0026] The discharge bin 14 is fixed above the base 1 and is used to collect the Bletilla striata freeze-dried powder that falls after being screened by the grading and screening device 7. The discharge bin 14 is designed as a pull-out structure with a handle 12 on the side for pulling out. The discharge bin 14 is made of stainless steel and coated with polytetrafluoroethylene, which can reduce the adhesion of Bletilla striata freeze-dried powder during the collection process.
[0027] The upper end of the discharge hopper 14 is connected to a hollow support column 2 for connecting the grading and screening device 7; the top of the support column 2 is connected to the bottom wall of the grading and screening device 7 through a rubber pad, so that the grading and screening device 7 can generate a certain displacement relative to the support column 2 when vibrating.
[0028] The upper end of the vibration assembly is fixedly connected to the grading and screening device 7, and the lower end is fixedly connected to the discharge hopper 14, for vibrating the grading and screening device 7; the vibration assembly includes four sets of damping springs 6, a connecting plate 3, and a drive unit; the four sets of damping springs 6 are respectively fixed at the four corners of the discharge hopper 14, and the top is fixedly connected to the connecting plate 3. The connecting plate 3 has a through hole in the middle and is sleeved on the outside of the support column 2; the diameter of the through hole is larger than the diameter of the support column 2; the connecting plate 3 is fixedly connected to the bottom of the grading and screening device 7; one side of the connecting plate 3 is connected to the drive unit through a connecting rod 13.
[0029] The drive unit includes a motor 4 and a rotating shaft 15. The motor 4 is fixedly mounted on the base 1. One end of the rotating shaft 15 is fixedly connected to the output shaft of the motor 4, and the other end is fixedly connected to the connecting rod 13. The center line of the rotating shaft 15 forms an acute angle with the center line of the rotating shaft of the motor 4, and the magnitude of the angle determines the intensity of the vibration. The connecting plate 3 is connected to the motor via the connecting rod 13 and the rotating shaft 15. The motor 4 drives the rotating shaft 15 to rotate, thereby driving the connecting plate 3 to vibrate, which in turn drives the grading and screening device to vibrate.
[0030] The grading and screening device 7 has a feed inlet 11 at the top, and its interior is uniformly arranged from top to bottom with a primary particle size screening disc 8, a secondary particle size screening disc 9, and a tertiary particle size screening disc 10. Each of the primary, secondary, and tertiary particle size screening discs includes a screen frame and a screen mesh, with the aperture of the three screens decreasing sequentially to achieve precise separation of different particle sizes. The grading and screening device 7 has a side door for removing each stage of the screening discs.
[0031] The screen is made of stainless steel wire mesh and coated with polytetrafluoroethylene, which can reduce friction and has good corrosion resistance, reduce the stickiness of Bletilla striata freeze-dried powder on the screen, and further improve screening efficiency and accuracy.
[0032] The grading and screening device 7 can be cylindrical, with the primary particle size screening disc 8, the secondary particle size screening disc 9, and the tertiary particle size screening disc 10 all being disc-shaped. The tertiary particle size screening disc is movably connected inside the grading and screening device 7. Three sets of limiting grooves 5 are axially arranged on the inner wall of the grading and screening device 7 for engaging the primary particle size screening disc 8, the secondary particle size screening disc 9, and the tertiary particle size screening disc 10. The primary particle size screening disc 8, the secondary particle size screening disc 9, and the tertiary particle size screening disc 10 can be pulled out of the grading and screening device 7, allowing for flexible removal and convenient replacement and cleaning by personnel. The remaining powder after screening by the grading and screening device 7 can enter the discharge hopper 14 for final processing.
[0033] The working process of this utility model is as follows: the equipment is connected to the power supply and the motor 4 is driven; the motor 4 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the connecting rod 13 to rotate, thereby driving the connecting plate 3 and the grading and screening device 7 to vibrate; the Bletilla striata freeze-dried powder to be graded and screened is added to the grading and screening device 7 through the feed port 11. Under the action of vibration, particles of different sizes in the Bletilla striata freeze-dried powder will pass through the primary particle size screening disc 8, the secondary particle size screening disc 9 and the tertiary particle size screening disc 10 respectively, and the primary particle size screening disc 8, the secondary particle size screening disc 9 and the tertiary particle size screening disc 10 will respectively screen out freeze-dried powder of different particle sizes; after screening, the operator can remove the screening discs of each particle size by pulling them out, and collect and package the Bletilla striata freeze-dried powder of different particle sizes respectively; the remaining freeze-dried powder falls into the discharge hopper 14 through the support column 2 for final processing.
[0034] This utility model's Bletilla striata freeze-dried powder grading and sieving machine adopts a vibration screening method, effectively overcoming the problem of incomplete screening caused by the small particle size of Bletilla striata freeze-dried powder in traditional gravity screening methods. Through multi-stage particle size screening discs, precise separation of Bletilla striata freeze-dried powder of different particle sizes is achieved, improving product uniformity and stability. Meanwhile, the detachable design and pull-out structure of the equipment facilitate daily maintenance and cleaning, improving production efficiency.
[0035] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A grading and sieving machine for Bletilla striata freeze-dried powder, characterized in that, It includes a base (1), a discharge bin (14), a vibration assembly, and a grading and screening device (7); the discharge bin (14) is fixed above the base (1), and the upper end is connected to a hollow support column (2), which is connected to the grading and screening device (7); the vibration assembly is sleeved on the outside of the support column (2), the upper end is fixedly connected to the grading and screening device (7), and the lower end is fixedly connected to the discharge bin (14); the grading and screening device (7) is provided with a feed inlet (11) at the top, and the interior is provided with a first-stage particle size screening disc (8), a second-stage particle size screening disc (9), and a third-stage particle size screening disc (10) arranged evenly from top to bottom.
2. The Bletilla striata freeze-dried powder grading and sieving machine according to claim 1, characterized in that, The base (1) is provided with a shock-absorbing rubber pad at the bottom.
3. The Bletilla striata freeze-dried powder grading and sieving machine according to claim 1, characterized in that, The discharge hopper (14) is configured as a pull-out structure, with a handle (12) on the side.
4. The Bletilla striata freeze-dried powder grading and sieving machine according to claim 1, characterized in that, The top of the support column (2) is connected to the bottom wall of the grading and screening device (7) by a rubber pad.
5. A Bletilla striata freeze-dried powder grading and sieving machine according to claim 1, characterized in that, The vibration assembly includes four sets of damping springs (6), a connecting plate (3), and a drive unit; the four sets of damping springs (6) are respectively fixed at the four corners of the discharge hopper (14), and the top is fixedly connected to the connecting plate (3). The connecting plate (3) has a through hole in the middle and is sleeved on the outside of the support column (2); the diameter of the through hole is larger than the diameter of the support column (2); the connecting plate (3) is fixedly connected to the bottom of the grading and screening device (7); one side of the connecting plate (3) is connected to the drive unit through a connecting rod (13).
6. A Bletilla striata freeze-dried powder grading and sieving machine according to claim 5, characterized in that, The drive unit includes a motor (4) and a rotating shaft (15); the motor (4) is fixed on the base (1); one end of the rotating shaft (15) is fixedly connected to the output shaft of the motor (4), and the other end is fixedly connected to the connecting rod (13); the center line of the rotating shaft (15) is set at an acute angle to the center line of the output shaft of the motor (4).
7. A Bletilla striata freeze-dried powder grading and sieving machine according to claim 1, characterized in that, The primary particle size screening disc (8), the secondary particle size screening disc (9), and the tertiary particle size screening disc (10) all include a screen frame and a screen mesh, with the mesh aperture decreasing sequentially. The grading and screening device (7) has three sets of limiting grooves (5) arranged axially on its inner wall for engaging the primary particle size screening disc (8), the secondary particle size screening disc (9), and the tertiary particle size screening disc (10).