Screening equipment for traditional Chinese medicine powder processing

Abstract

The utility model relates to the field of traditional Chinese medicine powder processing, and discloses a screening device for traditional Chinese medicine powder processing, which comprises a screening box body, a screening frame is rotatably mounted at the upper part in the screening box body, a screening net is arranged in an opening of the screening frame, and symmetrically arranged rotating shafts are rotatably mounted on the left side and the right side in the screening box body through bearings; a plurality of eccentric wheels distributed at equal intervals are arranged on the rotating shaft from front to back, the eccentric wheels on the left side and the right side are designed in a staggered mode, a push-pull notch is formed in the lower portion of the front side of the screening box, and a collecting frame is inserted into the push-pull notch in a front-back sliding mode. Traditional Chinese medicine particles on the screening net can roll left and right along the screening net, the particles can fall down through meshes of the screening net and cannot be stacked, gaps between the left side and the right side of the screening frame and the left side and the right side of the inner wall of the screening box body are extremely small, and unqualified particles cannot fall into a collecting frame.

Description

Technical Field

[0001] The utility model relates to the field of Chinese medicine powder processing, in particular to screening equipment for Chinese medicine powder processing. Background Art

[0002] When Chinese medicinal materials are made into Chinese medicinal powders, a crusher is required to crush the Chinese medicinal materials that meet the requirements of the pharmacopoeia, and then a sand mill and a pulper are used to pulp the crushed Chinese medicinal materials with deionized water so that the effective ingredients in the Chinese medicinal materials are fully dissolved in the water. After that, extraction and freeze-drying are carried out to obtain the corresponding Chinese medicinal powders. In this process, the crushed Chinese medicinal materials need to be screened out with a screening machine to obtain a suitable particle size so that the particle size of the Chinese medicinal materials meets the requirements of subsequent processing.

[0003] A Chinese utility model patent with announcement number CN218486544U discloses a Chinese medicine powder preparation and screening device, which can make the powder screening plate vibrate during the screening process of Chinese medicine powder through the coordination between the screening box, the powder screening plate and the driving mechanism, thereby effectively avoiding the situation that the Chinese medicine powder falls slowly due to the inability of the powder screening plate to vibrate, and further ensures the screening efficiency of Chinese medicine powder. In the above structure, in order to ensure that the screening plate can move left and right, the left and right ends of the screening plate have a certain distance from the left and right inner walls of the screening box, and there is no corresponding shielding structure between them, which makes the Chinese medicinal materials above the screening plate in the screening process may fall into the collection tank below through the gap between the two, so that there will be some unqualified particles inside the Chinese medicine tank after screening. For this reason, we designed a screening device for Chinese medicine powder processing. Utility Model Content

[0004] In order to solve the technical problem that Chinese medicinal materials above the screening plate may fall into the collecting tank below through the gap between the two, resulting in some unqualified particles inside the screening Chinese medicinal materials tank, the utility model provides a screening device for processing Chinese medicinal powder.

[0005] The utility model is implemented by the following technical scheme: a screening device for processing Chinese medicine powder, comprising a screening box, a screening frame is rotatably installed on the top of the screening box, and a screening net is arranged in the opening of the screening frame, and a symmetrically arranged rotating shaft is rotatably installed on the left and right sides of the screening box through bearings, and a plurality of eccentric wheels distributed at equal intervals are arranged on the rotating shaft from front to back, and the eccentric wheels on the left and right sides are staggered;

[0006] A push-pull notch is provided at the lower front side of the screening box body, a collecting frame is inserted in the push-pull notch for forward and backward sliding movement, a slag discharge port is provided at the left end of the screening box body, a sealing plate is clamped in the slag discharge port.

[0007] As a further improvement of the above scheme, the rear ends of the two rotating shafts pass through the screening box and are placed behind it. A driving motor is installed on the rear side of the screening box through a bracket. The output shaft of the driving motor and the rear ends of the two rotating shafts are meshed with each other through a toothed belt and a pulley. The rotation of the driving motor can make the two rotating shafts rotate synchronously, and then the eccentric wheel can rotate accordingly. The rotating eccentric wheel can push the screening frame to swing left and right, back and forth, and up and down.

[0008] As a further improvement of the above scheme, deflection plates are provided in the middle of the front and rear sides below the screening frame, a deflection shaft is installed between the two deflection plates, and the front and rear ends of the deflection shaft are rotatably connected to the inner wall of the screening box through bearings, so that the screening frame will swing back and forth along a set path, and its swing center is the axis of the deflection shaft.

[0009] As a further improvement of the above scheme, the left and right sides of the screening frame are designed with an arc-shaped structure, and the centers of the arc-shaped structures on the left and right sides are collinear with the axis of the deflection shaft. The left and right sides of the lower half of the screening box body are designed to be vertically upward to form a horizontal part, and the left and right sides of the upper part of the screening box body are designed with arcs to form arc-shaped parts, and the centers of the two arc-shaped parts are collinear with the axis of the deflection shaft. When the screening frame swings back and forth up and down, the left and right side surfaces of the screening frame can slide along the arc-shaped parts, so that the gap between the screening frame and the screening box body is extremely small, so that unqualified particles cannot fall into the collection frame, thereby improving the screening effect.

[0010] As a further improvement of the above solution, the upper surface opening of the screening box is designed to form a feeding port, and a feeding frame is welded on the feeding port to facilitate adding the Chinese medicinal materials to be screened into the screening box through the feeding port.

[0011] As a further improvement of the above scheme, the slag discharge port is arranged on the arc-shaped portion, and the bottom end of the slag discharge port is below the upper surface of the screening frame, and the inward side surface of the sealing plate protrudes inward to form a protrusion, and the length, width and thickness of the protrusion match the length, width and depth of the slag discharge port. When the left end of the screening plate is at the lowest end, the bottom end of the slag discharge port is below its upper surface, which allows the remaining Chinese medicinal materials on the screening net to quickly slide down along the surface of the screening plate for cleaning.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model adopts the design of reciprocating up and down swinging on the left and right sides of the screening frame, so that the Chinese medicinal material particles on the screening net can roll left and right along the screening net, so that the particles can fall through the mesh of the screening net without accumulation, and the left and right sides of the screening frame and the left and right sides of the inner wall of the screening box have very small gaps, so that unqualified particles cannot fall into the collection frame, thereby improving the screening effect;

[0014] 2. A slag discharge port is provided on the left side of the screening box, and the bottom end of the slag discharge port is below the upper surface of the screening frame, so that the remaining Chinese medicinal materials on the screening net can quickly slide down along the surface of the screening net for cleaning, making it easy to clean the remaining medicinal material particles on the screening net. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a screening device for processing traditional Chinese medicine powder provided by the utility model;

[0016] Figure 2 for Figure 1 The front and rear isometric drawings of the

[0017] Figure 3 for Figure 1 Schematic diagram of the internal structure;

[0018] Figure 4 for Figure 3 Front view of .

[0019] Description of main symbols:

[0020] 1. Screening box; 101. Arc-shaped part; 102. Horizontal part; 11. Feeding frame; 12. Slag discharge port; 2. Collecting frame; 3. Sealing plate; 4. Screening frame; 41. Screening net; 42. Deflection plate; 43. Deflection shaft; 5. Eccentric wheel; 51. Rotating shaft. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-Figure 4A screening device for processing Chinese medicine powder of the present embodiment comprises a screening box 1, a screening frame 4 is rotatably installed on the upper part of the screening box 1, and a screening net 41 is arranged in the opening of the screening frame 4, and a symmetrically arranged rotating shaft 51 is rotatably installed on the left and right sides of the screening box 1 through bearings, and a plurality of eccentric wheels 5 distributed at equal intervals are arranged on the rotating shaft 51 from front to back, and the eccentric wheels 5 on the left and right sides are staggered. When the left eccentric wheel 5 is at the bottom, the right eccentric wheel 5 is at the top, and the eccentric wheels 5 on both sides can alternately make the left and right sides of the screening frame 4 swing up and down back and forth;

[0024] A push-pull notch is provided at the lower front side of the screening box 1, and a collecting frame 2 is inserted in the push-pull notch for sliding back and forth. A slag discharge port 12 is provided at the left end of the screening box 1, and a sealing plate 3 is clamped in the slag discharge port 12.

[0025] The rear ends of the two rotating shafts 51 pass through the screening box 1 and are placed behind it. A driving motor is installed on the rear side of the screening box 1 through a bracket. The output shaft of the driving motor and the rear ends of the two rotating shafts 51 are meshed with each other through a toothed belt and a pulley. The rotation of the driving motor can make the two rotating shafts 51 rotate synchronously, and then the eccentric wheel 5 can rotate accordingly. The rotating eccentric wheel 5 can push the screening frame 4 to swing left and right, back and forth, and up and down.

[0026] Deflection plates 42 are provided in the middle of the front and rear sides below the screening frame 4, a deflection shaft 43 is installed between the two deflection plates 42, and the front and rear ends of the deflection shaft 43 are rotatably connected to the inner wall of the screening box body 1 through bearings, so that the screening frame 4 will swing back and forth along a set path, and its swing center is the axis of the deflection shaft 43.

[0027] The left and right sides of the screening frame 4 are both designed with an arc-shaped structure, and the centers of the arc-shaped structures on the left and right sides are collinear with the axis of the deflection shaft 43. The left and right sides of the lower half of the screening box body 1 are designed to be vertically upward to form a horizontal portion 102, and the left and right sides of the upper part of the screening box body 1 are designed with arcs to form an arc portion 101, and the centers of the two arc portions 101 are collinear with the axis of the deflection shaft 43. When the screening frame 4 swings back and forth up and down, the left and right side surfaces of the screening frame 4 can slide along the arc portion 101, so that the gap between the screening frame 4 and the screening box body 1 is extremely small, so that unqualified particles cannot fall into the collection frame 2, thereby improving the screening effect.

[0028] The upper surface of the screening box 1 is opened to form a feeding port, on which a feeding frame 11 is welded, so as to facilitate adding the Chinese medicinal materials to be screened into the screening box 1 through the feeding port.

[0029] The slag discharge port 12 is arranged on the arc-shaped portion 101, and the bottom end of the slag discharge port 12 is below the upper surface of the screening frame 4, and the inner side surface of the sealing plate 3 protrudes inward to form a protrusion, and the length, width and thickness of the protrusion match the length, width and depth of the slag discharge port 12. When the left end of the screening plate is at the lowest end, the bottom end of the slag discharge port 12 is below its upper surface, which allows the remaining Chinese medicinal materials on the screening net to quickly slide down along the surface of the screening plate for cleaning.

[0030] The implementation principle of a screening device for processing Chinese medicine powder in the embodiment of the present application is as follows: in actual use, firstly, the power supply of the driving motor is turned on, and the two rotating shafts 51 will rotate accordingly under the action of the driving motor. Since the screening frame 4 is placed on the two eccentric wheels 5, when the eccentric wheel 5 on the left is deflected upward, the eccentric wheel 5 on the right will gradually deflect downward, so that the eccentric wheels 5 on both sides alternately push the screening frame 4, so that the left and right sides of the screening frame 4 swing up and down back and forth, and the crushed Chinese medicine particles are added to the inside of the screening box 1 through the feeding frame 11 and placed above the screening net 41. The Chinese medicine particles on the screening net 41 will roll back and forth on the screening net 41, and the particles that meet the requirements among the Chinese medicine particles will fall into the collecting frame 2 through the mesh on the screening net 41 for collection, while the particles that do not meet the requirements will remain above the screening net 41, and then the collecting frame 2 can be pulled out;

[0031] By designing the left and right sides of the screening frame 4 to swing up and down reciprocatingly, the Chinese medicinal material particles on the screening net 41 can roll left and right along the screening net 41, so that the particles can fall through the mesh of the screening net without accumulation, and the left and right sides of the screening frame 4 and the left and right sides of the inner wall of the screening box 1 have very small gaps, so that unqualified particles cannot fall into the collection frame 2, thereby improving the screening effect;

[0032] By setting a slag discharge port 12 on the left side of the screening box 1, and the bottom end of the slag discharge port 12 is below the upper surface of the screening frame 4, the remaining Chinese medicinal materials on the screening net 41 can quickly slide down along the surface of the screening net 41 for cleaning, which is convenient for cleaning the remaining medicinal material particles on the screening net 41.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A screening device for processing Chinese medicine powder, comprising a screening box (1), characterized in that: A screening frame (4) is rotatably mounted on the upper part of the screening box (1), and a screening net (41) is arranged in the opening of the screening frame (4). A symmetrically arranged rotating shaft (51) is rotatably mounted on the left and right sides of the screening box (1) via bearings. A plurality of eccentric wheels (5) are arranged on the rotating shaft (51) from front to back at equal intervals, and the eccentric wheels (5) on the left and right sides are staggered. A push-pull notch is provided at the lower front side of the screening box (1), a collecting frame (2) is inserted and slidably inserted in the push-pull notch, a slag discharge port (12) is provided at the left end of the screening box (1), a sealing plate (3) is clamped in the slag discharge port (12).

2. A screening device for processing Chinese medicine powder according to claim 1, characterized in that: The rear ends of the two rotating shafts (51) pass through the screening box (1) and are placed behind it. A driving motor is installed on the rear side of the screening box (1) via a bracket. The output shaft of the driving motor is meshed with the rear ends of the two rotating shafts (51) via a toothed belt and a pulley for transmission.

3. A screening device for processing Chinese medicine powder according to claim 1, characterized in that: Deflection plates (42) are provided in the middle of the front and rear sides below the screening frame (4), a deflection shaft (43) is installed between the two deflection plates (42), and the front and rear ends of the deflection shaft (43) are rotatably connected to the inner wall of the screening box body (1) through bearings.

4. A screening device for processing Chinese medicine powder as claimed in claim 3, characterized in that: The left and right sides of the screening frame (4) are both designed as arc-shaped structures, and the centers of the arc-shaped structures on the left and right sides are collinear with the axis of the deflection shaft (43); The left and right sides of the lower half of the screening box (1) are designed to be vertically upward to form a horizontal portion (102), and the left and right sides of the upper half of the screening box (1) are designed to be arc-shaped to form an arc-shaped portion (101), and the centers of the two arc-shaped portions (101) are collinear with the axis of the deflection shaft (43).

5. A screening device for processing Chinese medicine powder according to claim 1, characterized in that: The upper surface of the screening box (1) is opened to form a feeding port, and a feeding frame (11) is welded to the feeding port.

6. A screening device for processing Chinese medicine powder according to claim 1, characterized in that: The slag discharge port (12) is arranged on the arc-shaped portion (101), and the bottom end of the slag discharge port (12) is located below the upper surface of the screening frame (4), and the inner side surface of the sealing plate (3) protrudes inward to form a raised portion, and the length, width and thickness of the raised portion match the length, width and depth of the slag discharge port (12).

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