A pharmaceutical material screening device

Abstract

This utility model discloses a pharmaceutical raw material screening device, relating to the technical field of traditional Chinese medicine production equipment. It includes a screen box, a corrugated screen plate, a base, springs, a support, a vibrating motor, and a cover plate. The screen box is elastically connected to the base via springs, with limiting posts preventing detachment and buffering vibration. The vibrating motor directly drives the screen box to vibrate via the support. The cover plate is removable for easy feeding and maintenance. The peak height, trough depth, and wavelength between adjacent peaks of the screen plate gradually increase along the screening direction. This structure extends the raw material's movement path, increases its contact time with the screen plate, facilitates impurity separation and raw material dispersion, and improves screening efficiency. The screen box is equipped with a pad and outlets for impurities and raw materials. Impurities are discharged through an impurity discharge pipe via an inclined surface, while raw materials are discharged along the screen plate through a raw material discharge pipe. This device has high screening efficiency, effectively removes impurities, ensures uniform particle size of raw materials, and is suitable for screening various pharmaceutical raw materials, including traditional Chinese medicine.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine production equipment technology, and in particular to a pharmaceutical raw material screening device. Background Technology

[0002] Currently, most screening equipment used for raw materials of Chinese medicinal herbs on the market generally adopts a planar structure for its sieve plates. In practical applications, this traditional planar sieve plate has the following drawbacks:

[0003] On the one hand, due to the simple structure of the flat screen plate, the movement path of the raw material on the screen surface is relatively short, and the contact time with the screen plate is limited, which makes it difficult for some fine impurities to be fully separated. During the vibrating screening process, some impurities that are close to the screen hole in size but do not meet the passing standard may remain in the raw material due to insufficient contact time, which seriously affects the screening effect and reduces the purity of the raw material.

[0004] On the other hand, when the flat sieve plate vibrates, the raw materials tend to accumulate or agglomerate on the sieve surface. The raw materials of Chinese medicinal materials are diverse in shape, and the flat sieve plate cannot effectively disperse the raw materials, making it difficult to separate impurities and distribute the raw materials evenly, thereby reducing screening efficiency and increasing production time and cost. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a pharmaceutical raw material screening device.

[0006] The present invention discloses a pharmaceutical raw material screening device, including a screen box, inside which a corrugated screen plate is installed. The surface of the screen plate has several screen holes, and along the direction from the beginning to the end of the pharmaceutical raw material screening, the height of the wave crest, the depth of the wave trough, and the wavelength between adjacent wave crests of the screen plate gradually increase.

[0007] Furthermore, the pharmaceutical raw material screening device also includes a base located below the sieve box, and the base and the sieve box are connected by several springs. Both sides of the sieve box are connected to support legs, and the adjacent end faces of the base and support legs are connected to limiting posts. The two ends of the springs are sleeved on the outside of the limiting posts, and the limiting posts are made of rubber.

[0008] Furthermore, a bracket is fixedly connected to the lower surface of the screen box, and a vibration motor is installed at the bottom of the bracket.

[0009] Furthermore, a cover plate is detachably provided on the upper part of the screen box, and a feeding hopper is connected to the end of the cover plate. Hooks are fixedly connected to both sides of the cover plate, and locks are installed on both sides of the screen box at the positions corresponding to the hooks. After the screen box and the cover plate are assembled, the locks and hooks engage.

[0010] Furthermore, the inner end of the screen box is provided with an impurity outlet and a raw material outlet, which are separated by a partition. The impurity outlet and the raw material outlet are respectively connected to an impurity discharge pipe and a raw material discharge pipe.

[0011] Furthermore, a pad is fixed to the bottom of the screen box, and a frame is installed on the side wall around the inside of the screen box. The frame is inclined toward the raw material outlet, and the end of the frame is fixed to the partition. The upper surface of the pad is set as an inclined surface and is inclined toward the impurity outlet.

[0012] Furthermore, the screen plate is installed on the upper part of the frame body by anti-loosening bolts, which are installed at the troughs of the screen plate.

[0013] The beneficial effects of this utility model are as follows: By adopting a corrugated sieve plate structure, the movement path of the raw material during the screening process is effectively extended, and the contact time between the raw material and the sieve plate is increased, so that fine impurities can be separated more fully. In addition, the peak height, trough depth, and wavelength between adjacent peaks of the sieve plate gradually increase from the beginning to the end of the screening of the medicinal raw materials. This unique design allows the raw materials to be more fully dispersed, tumbled, and moved in different wavebands according to their own particle size, shape, and other characteristics during the vibrating screening process. This effectively avoids the accumulation and agglomeration of raw materials, makes it easier for fine impurities to pass through the sieve holes, and allows large particles of raw materials to move more smoothly along the sieve plate to the raw material outlet. This significantly improves the screening efficiency and quality of Chinese medicinal materials, ensuring that the raw materials after screening have uniform particle size and low impurity content. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the sieve plate in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the sieve box in this utility model;

[0017] Figure 4 This is a first-view structural diagram of the present invention after assembly;

[0018] Figure 5 This is a structural schematic diagram of the present invention from a second perspective after assembly;

[0019] Figure 6 This is a half-sectional view of the assembled version of this utility model.

[0020] In the diagram: 1. Screen box; 11. Pad plate; 12. Frame body; 13. Impurity outlet; 14. Raw material outlet; 15. Baffle plate; 16. Impurity discharge pipe; 17. Raw material discharge pipe; 18. Support leg; 19. Lock; 2. Screen plate; 21. Screen hole; 3. Base; 31. Limiting post; 4. Spring; 5. Bracket; 6. Vibrating motor; 7. Cover plate; 71. Feed hopper; 72. Hook; 8. Anti-loosening bolt. Detailed Implementation

[0021] Reference Figure 1-6 The present invention discloses a pharmaceutical raw material screening device, which mainly consists of a screen box 1, a screen plate 2, a base 3, a spring 4, a support 5, a vibrating motor 6, and a cover plate 7, as detailed below:

[0022] The screen box 1 is located above the base 3, and the two are elastically connected by several springs 4. The support legs 18 on both sides of the screen box 1 and the adjacent end face of the base 3 are provided with limit posts 31. The two ends of the springs 4 are respectively sleeved on the outside of the limit posts 31. This elastic connection method allows the screen box 1 to vibrate under the drive of the vibration motor 6. At the same time, the rubber material of the limit posts 31 provides a good damping effect, which not only prevents the springs 4 from falling off, but also buffers the vibration energy and ensures the stability of the device operation.

[0023] The vibration motor 6 is installed at the bottom of the bracket 5 on the lower surface of the sieve box 1. When the vibration motor 6 is working, the vibration it generates is directly transmitted to the sieve box 1 through the bracket 5, which in turn drives the sieve plate 2 and the raw materials of the medicine inside the sieve box 1 to vibrate synchronously. This power transmission method is simple and direct, which can ensure that the vibration energy is efficiently transmitted to the screening components and improve the screening efficiency.

[0024] The cover plate 7 is detachably installed on the upper part of the sieve box 1. The feeding hopper 71 at the end is used to feed the raw materials of the medicine. The hooks 72 on both sides of the cover plate 7 are engaged with the corresponding locks 19 on both sides of the sieve box 1 to achieve quick installation and disassembly. This detachable connection method facilitates cleaning and maintenance of the inside of the sieve box 1.

[0025] The corrugated sieve plate 2 is installed on the upper part of the frame body 12 on the inner side wall of the sieve box 1 by anti-loosening bolts 8. The anti-loosening bolts 8 adopt existing technology. The specific principle and structure of anti-loosening are not detailed here. The anti-loosening bolts 8 are installed at the troughs of the sieve plate 2, and the troughs abut against the upper surface of the frame body 12. Nuts for fixing the anti-loosening bolts 8 are embedded in the frame body 12. This installation method not only ensures the stability of the sieve plate 2, but also facilitates disassembly and replacement. At the same time, the corrugated structure of the sieve plate 2 makes the peak height, trough depth and wavelength between adjacent peaks gradually increase along the direction from the beginning to the end of the screening of the raw materials. Compared with the flat sieve plate, this structure can effectively increase the path length of the raw materials during the screening process, that is, extend the contact time between the raw materials and the sieve plate. On the other hand, the design of gradually increasing peak height, trough depth and wavelength between adjacent peaks helps the raw materials to be better dispersed and moved during vibration, thereby improving the screening effect.

[0026] A pad 11 is fixed at the bottom of the inside of the sieve box 1. Its upper surface is set as an inclined surface that faces the impurity outlet 13. The impurity outlet 13 and the raw material outlet 14 are respectively set at the end of the inside of the sieve box 1. The two are separated by a partition 15. During the sieving process, smaller impurities fall into the pad 11 through the sieve holes 21 and move towards the impurity outlet 13 under the action of the inclined surface. Finally, they are discharged through the impurity discharge pipe 16. The sieved raw materials move towards the raw material outlet 14 along the wavy structure of the sieve plate 2 and fall into the raw material outlet 14. They are discharged through the raw material discharge pipe 17. This separation and discharge relationship ensures the effective separation and collection of impurities and raw materials.

[0027] When the screening device is in operation, the raw materials of the medicine to be screened are first poured into the screen box 1 through the feeding hopper 71 and fall onto the screen plate 2. The vibration motor 6 is started, and the vibration generated will drive the screen plate 2 and the raw materials of the medicine to vibrate synchronously. During the vibration process, the impurities generated will fall into the impurity outlet 13 on the inclined surface of the pad plate 11 under the action of continuous vibration, and then be discharged through the impurity discharge pipe 16. The raw materials of the medicine to be screened will also move towards the raw material outlet 14 with the vibration, fall into the raw material outlet 14, and then be discharged through the raw material discharge pipe 17.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pharmaceutical material screening device, characterized by, Includes a sieve box (1), inside which a corrugated sieve plate (2) is installed. The surface of the sieve plate (2) is provided with several sieve holes (21). Along the direction from the beginning to the end of the screening of the raw materials, the height of the wave peaks, the depth of the wave valleys, and the wavelength between adjacent wave peaks of the sieve plate (2) gradually increase.

2. The pharmaceutical raw material screening apparatus according to claim 1, wherein It also includes a base (3), which is located below the screen box (1), and the base (3) and the screen box (1) are connected by several springs (4). Both sides of the screen box (1) are connected to support legs (18). The adjacent end faces of the base (3) and the support legs (18) are connected to limiting posts (31). The two ends of the springs (4) are sleeved on the outside of the limiting posts (31), and the limiting posts (31) are made of rubber.

3. The pharmaceutical raw material screening apparatus according to claim 1, wherein A bracket (5) is fixedly connected to the lower surface of the sieve box (1), and a vibration motor (6) is installed at the bottom of the bracket (5).

4. The pharmaceutical raw material screening apparatus according to claim 1, wherein The upper part of the screen box (1) is detachably provided with a cover plate (7), the end of the cover plate (7) is connected to the feeding hopper (71), and hooks (72) are fixedly connected to both sides of the cover plate (7). Locks (19) are installed on both sides of the screen box (1) and at the positions corresponding to the hooks (72). After the screen box (1) and the cover plate (7) are assembled, the locks (19) and hooks (72) engage.

5. The pharmaceutical raw material screening apparatus according to claim 1, wherein The screen box (1) is provided with an impurity outlet (13) and a raw material outlet (14) at its internal end. The impurity outlet (13) and the raw material outlet (14) are separated by a partition (15). The impurity outlet (13) and the raw material outlet (14) are respectively connected to an impurity discharge pipe (16) and a raw material discharge pipe (17).

6. The pharmaceutical raw material screening apparatus according to claim 5, wherein A pad (11) is fixed to the bottom of the screen box (1), and a frame (12) is installed on the side wall around the inside of the screen box (1). The frame (12) is inclined toward the raw material outlet (14), and the end of the frame (12) is fixed on the partition (15). The upper surface of the pad (11) is set as an inclined surface and is inclined toward the impurity outlet (13).

7. The pharmaceutical material screening device of claim 6, wherein, The sieve plate (2) is installed on the upper part of the frame body (12) by anti-loosening bolts (8), and the anti-loosening bolts (8) are installed at the trough of the sieve plate (2).

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