Multi-stage screening device for traditional Chinese medicine decoction pieces

Abstract

The utility model discloses a multistage screening device for traditional Chinese medicine decoction pieces, and relates to the field of medicinal material screening equipment. The screening device comprises a first screening cylinder and a second screening cylinder, the two ends of the first screening cylinder are communicated and obliquely arranged, a plurality of first screening holes are formed in the outer wall of the first screening cylinder, the two ends of the second screening cylinder are communicated and obliquely arranged, the smallest first screening hole is formed in the high end of the first screening cylinder, and the second screening cylinder is formed in the lower end of the second screening cylinder. The smallest second screening hole is formed in the high end of the second screening cylinder, and the hole diameter of the smallest second screening hole is larger than that of the largest first screening hole. The projection of the first screening cylinder and the projection of the second screening cylinder on the vertical plane intersect. The through end of the bottom end of the first screening cylinder communicates with the through end of the high end of the second screening cylinder through a material lifting mechanism; the problem that an existing screening cylinder is too long when multiple screening grades are set is solved.

Description

Technical Field

[0001] The utility model relates to the field of medicinal material screening equipment, in particular to a multi-stage screening device for Chinese medicinal pieces. Background Art

[0002] After the Chinese herbal medicine is sliced, due to the irregularity of the growth of the raw materials, the tablets are of different sizes and poor uniformity, and the value of tablets of different sizes is also different. Therefore, after the Chinese herbal medicine is sliced ​​and dried, it is generally necessary to screen the slices of the Chinese herbal medicine. At present, the screening of tablets is either a vertical screening box or a cylindrical screening cylinder.

[0003] At present, whether it is for the screening cylinder or the screening box, when the screening level is increased, the occupied space of the screening equipment needs to be greatly increased. For example, when the screening level of the screening box is increased, its height will gradually increase with the increase of the screening level. The screening boxes currently used in the industry are mostly 2-3 layers, and the Chinese medicine slices cannot be screened all at once. The screen needs to be replaced and the screening operation needs to be repeated many times. At the same time, the sieve holes used in the screening box are square, resulting in the selected Chinese medicine slices being greater than the standard requirements. For the screening cylinder, as the screening level increases, the length of the screening cylinder will gradually increase. When the screening cylinder is too long, it has a great impact on the space utilization of the factory building. Utility Model Content

[0004] The utility model aims to provide a multi-stage screening device for Chinese herbal medicine slices to solve the problems of complicated screening operation, inaccurate product grade and excessive length of the equipment when multiple screening levels are set in the existing screening cylinder or screening box.

[0005] In order to solve the above problems, the utility model adopts the following technical means:

[0006] A multi-stage screening device for Chinese herbal medicine pieces, comprising:

[0007] A first screening cylinder, wherein both ends of the first screening cylinder are connected and arranged obliquely, and the outer wall of the first screening cylinder is configured with a plurality of first screening holes, and the apertures of the first screening holes gradually increase along the axial direction of the first screening cylinder;

[0008] A second screening cylinder, wherein both ends of the second screening cylinder are connected and arranged obliquely, and the outer wall of the first screening cylinder is configured with a plurality of second screening holes, and the apertures of the second screening holes gradually increase along the axial direction of the second screening cylinder;

[0009] The smallest first sieve hole is arranged at the high end of the first screening cylinder, the smallest second sieve hole is arranged at the high end of the second screening cylinder, and the aperture of the smallest second sieve hole is larger than the aperture of the largest first sieve hole;

[0010] The projections of the first screening cylinder and the second screening cylinder on a vertical plane are arranged to intersect;

[0011] The bottom through end of the first screening cylinder is communicated with the top through end of the second screening cylinder through a material lifting mechanism.

[0012] Preferably, the first screening drum is configured with an inclined first rotating rod, and the first rotating rod is coaxially connected to a rotating end of a first rotating motor for driving the first screening drum;

[0013] The second screening drum is configured with an inclined second rotating rod, and the second rotating rod is coaxially connected to a rotating end of a second rotating motor for driving the second screening drum.

[0014] Furthermore, the first screening cylinder includes first mounting rings sequentially arranged along the axis of the first rotating rod, the first mounting rings are coaxially arranged with the first rotating rod, the inner wall of the first mounting ring is connected to the first rotating rod through a first connecting rod, a first screening section is removably installed between two adjacent first mounting rings, the first sieve holes on each of the first screening sections are arranged with equal diameters, and the apertures of the first sieve holes on different first screening sections gradually increase along the direction from high to low of the first rotating rod.

[0015] Furthermore, the first screening section includes a plurality of first arc-shaped plates coaxially arranged with the first rotating rod, the plurality of first arc-shaped plates are mutually spliced ​​and surrounded to form the first cylindrical screening section, and the first arc-shaped plates are detachably connected to the first mounting ring.

[0016] Furthermore, the second screening cylinder includes second mounting rings sequentially arranged along the axis of the second rotating rod, the second mounting rings are coaxially arranged with the second rotating rod, the inner wall of the second mounting ring is connected to the second rotating rod through a second connecting rod, a second screening section is removably installed between two adjacent second mounting rings, the second screen holes on each second screening section are arranged with equal diameters, and the apertures of the second screen holes on different second screening sections gradually increase along the direction from high to low of the second rotating rod.

[0017] Furthermore, the second screening section includes a plurality of second arc-shaped plates coaxially arranged with the second rotating rod, the plurality of second arc-shaped plates are mutually spliced ​​and surrounded to form the cylindrical second screening section, and the second arc-shaped plates are detachably connected to the second mounting ring.

[0018] Furthermore, the first screening cylinder, the second screening cylinder and the material lifting mechanism are all arranged in the box;

[0019] A vertical screening partition plate is constructed in the box body and is arranged between the first screening cylinder and the second screening cylinder. A plurality of discharge partition plates are arranged between the screening partition plate and the inner wall of the box body. A screening discharge channel is arranged between two adjacent discharge partition plates. Each screening discharge channel is respectively connected to the screening discharge part of the first screening cylinder or the second screening cylinder. The screening discharge channel is arranged through the bottom surface of the box body.

[0020] The top surface of the box body is provided with a feed port connected to the feed end of the first screening cylinder;

[0021] The first rotating motor and the second rotating motor are both arranged on the side wall of the box body.

[0022] Furthermore, the first sieve hole and the second sieve hole are both circular sieve holes.

[0023] Furthermore, the horizontal angle, that is, the inclination, and the rotation speed of the first screening drum and the second screening drum can be adjusted by adjusting the inclination angle of the first screening drum and the second screening drum during installation.

[0024] During use, the utility model has the following beneficial effects:

[0025] During screening, the material is added from the high end of the first screening cylinder. With the rotation of the first screening cylinder, the material gradually moves downward under its own gravity. Under the screening effect of the first sieve holes of different apertures, the screened material falls out and is collected. The unscreened part of the material screened by the first screening cylinder falls out from the bottom of the first screening cylinder and falls on the material lifting mechanism. Under the action of the material lifting mechanism, the material enters the second screening cylinder from a high place again, so that the material continues to be screened in the second screening cylinder under the action of its own gravity. At the same time, by using the cross setting of the first screening cylinder and the second screening cylinder, that is, the intersection setting on the vertical projection plane, the material is screened from top to bottom and from left to right in the first screening cylinder, and after entering the second screening cylinder, the material is screened from top to bottom and from right to left. In this way, in the horizontal direction, the direction of movement of the material in the first screening cylinder and the second screening cylinder is opposite, so that the horizontal length of the screening cylinder can be greatly reduced during multi-stage screening. On the one hand, the space utilization rate of the site is improved, and on the other hand, the distance that the staff walks back and forth can be greatly reduced. During the screening process, the inclination angle and rotation speed of the screening cylinder are adjusted to control the speed at which the material moves in the screening cylinder, so that the same grade of Chinese medicine slices can be fully screened out within the limited length of the same aperture screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 This is a front view structural schematic diagram of the utility model.

[0028] Figure 3 It is a schematic diagram of the structure of the box of the utility model when the bottom is removed.

[0029] Figure 4 This is a schematic diagram of the front view structure of the first screening cylinder after the side panels of the box body of the utility model are removed.

[0030] Figure 5 It is a schematic structural diagram of the second screening cylinder side after the side plate of the box body of the utility model is removed.

[0031] Figure 6 This is a schematic diagram of the front view of the material lifting mechanism of the utility model after the side panels of the box are removed.

[0032] Figure 7 It is a structural schematic diagram of the utility model in which the side plate of the box body is removed and a first screening section is removed from the first screening cylinder.

[0033] Among them, 100-first screening cylinder, 101-first mounting ring, 102-first connecting rod, 103-first screening section, 1031-first arc plate, 200-second screening cylinder, 201-second mounting ring, 202-second connecting rod, 203-second screening section, 2031-second arc plate, 300-material lifting mechanism, 400-first rotating rod, 500-first rotating motor, 600-second rotating rod, 700-box, 800-screening partition plate, 900-discharging partition plate, 1000-screening discharge channel, 1100-feed port, 1200-positioning slip ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Please refer to Figures 1 to 7 As shown, a multi-stage screening device for Chinese herbal medicine pieces comprises:

[0041] A first screening cylinder 100, wherein both ends of the first screening cylinder 100 are connected and arranged obliquely, and the outer wall of the first screening cylinder 100 is configured with a plurality of first sieve holes, and the apertures of the first sieve holes gradually increase along the axial direction of the first screening cylinder 100;

[0042] The second screening cylinder 200 has two ends that are connected and inclined, and the outer wall of the first screening cylinder 100 is configured with a plurality of second sieve holes, and the apertures of the second sieve holes gradually increase along the axial direction of the second screening cylinder 200;

[0043] The smallest first sieve hole is arranged at the high end of the first screening cylinder 100, and the smallest second sieve hole is arranged at the high end of the second screening cylinder 200. The aperture of the smallest second sieve hole is larger than the aperture of the largest first sieve hole.

[0044] The projections of the first screening cylinder 100 and the second screening cylinder 200 on a vertical plane are arranged to intersect;

[0045] The bottom through end of the first screening cylinder 100 is connected with the top through end of the second screening cylinder 200 through a material lifting mechanism 300 .

[0046] In this way, when screening, the material is added from the high end of the first screening cylinder 100. With the rotation of the first screening cylinder 100, the material gradually moves downward under its own gravity. Under the screening effect of the first sieve holes of different apertures, the screened material falls out and is collected. The unscreened part of the material screened by the first screening cylinder 100 falls out from the bottom end of the first screening cylinder 100 and falls onto the material lifting mechanism 300. Under the action of the material lifting mechanism 300, the material re-enters the second screening cylinder 200 from a high place, so that the material continues to be screened in the second screening cylinder 200 under the action of its own gravity. At the same time, by using the cross setting of the first screening cylinder 100 and the second screening cylinder 200, that is, the intersection setting on the vertical projection plane, the material is screened from top to bottom and from left to right in the first screening cylinder 100, and after entering the second screening cylinder 200, the material is screened from top to bottom and from right to left, so that in the horizontal direction, the moving directions of the material in the first screening cylinder 100 and the second screening cylinder 200 are opposite, thereby greatly reducing the horizontal length of the screening cylinder during multi-stage screening. On the one hand, it improves the space utilization rate of the site, and on the other hand, it can also greatly reduce the distance that the staff walks back and forth.

[0047] For further information, please refer to Figure 4 , Figure 5 , Figure 6 as well as Figure 7 As shown, the first screening drum 100 is configured with an inclined first rotating rod 400, and the first rotating rod 400 is coaxially connected to the rotating end of a first rotating motor 500 for driving the first screening drum 100;

[0048] The second screening drum 200 is configured with an inclined second rotating rod 600 , and the second rotating rod 600 is coaxially connected to a rotating end of a second rotating motor for driving the second screening drum 200 .

[0049] Specifically, the first screening cylinder 100 includes first mounting rings 101 sequentially arranged along the axis of the first rotating rod 400, the first mounting ring 101 is coaxially arranged with the first rotating rod 400, the inner wall of the first mounting ring 101 is connected to the first rotating rod 400 through a first connecting rod 102, and a first screening section 103 is removably installed between two adjacent first mounting rings 101, and the first sieve holes on each of the first screening sections 103 are arranged with equal diameters, and the apertures of the first sieve holes on different first screening sections 103 gradually increase along the direction from high to low of the first rotating rod 400.

[0050] At the same time, the first screening section 103 includes a plurality of first arc plates 1031 coaxially arranged with the first rotating rod 400 , and the plurality of first arc plates 1031 are spliced ​​together to surround the first cylindrical screening section 103 , and the first arc plates 1031 are detachably connected to the first mounting ring 101 .

[0051] In this way, by disassembling the first screening section 103, the screening process of the first screening cylinder 100 can be interrupted. According to the needs of screening, when the object to be screened does not need to pass subsequent screening, the corresponding first screening section 103 can be disassembled, so that the screened material in the first screening cylinder 100 can be unloaded and the screening process can be quickly ended.

[0052] At the same time, the first arc-shaped plates 1031 that are spliced ​​together can facilitate workers to disassemble and install the first screening section 103.

[0053] Furthermore, similarly, for the second screening cylinder 200, the second screening cylinder 200 includes second mounting rings 201 sequentially arranged along the axis of the second rotating rod 600, the second mounting ring 201 is coaxially arranged with the second rotating rod 600, the inner wall of the second mounting ring 201 is connected to the second rotating rod 600 through a second connecting rod 202, and a second screening section 203 is removably installed between two adjacent second mounting rings 201, and the second sieve holes on each second screening section 203 are arranged with equal diameters, and the apertures of the second sieve holes on different second screening sections 203 gradually increase along the direction from high to low of the second rotating rod 600.

[0054] Moreover, the second screening section 203 includes a plurality of second arc plates 2031 coaxially arranged with the second rotating rod 600 , and the plurality of second arc plates 2031 are spliced ​​together to surround the cylindrical second screening section 203 , and the second arc plates 2031 are detachably connected to the second mounting ring 201 .

[0055] Furthermore, combined with Figure 2 and Figure 3As shown, the first screening drum 100, the second screening drum 200 and the material lifting mechanism 300 are all arranged in a box 700;

[0056] A vertical screening partition plate 800 is constructed in the box body 700 and is arranged between the first screening cylinder 100 and the second screening cylinder 200. A plurality of discharge partition plates 900 are arranged between the screening partition plate 800 and the inner wall of the box body 700. A screening discharge channel 1000 is arranged between two adjacent discharge partition plates 900. Each screening discharge channel 1000 is respectively connected to the screening discharge part of the first screening cylinder 100 or the second screening cylinder 200. The screening discharge channel 1000 is arranged through the bottom surface of the box body 700.

[0057] The top surface of the box body 700 is provided with a feed port 1100 which is connected to the feed end of the first screening cylinder 100;

[0058] The first rotating motor 500 and the second rotating motor are both disposed on the side wall of the box body 700 .

[0059] Furthermore, the first sieve hole and the second sieve hole are both circular sieve holes.

[0060] The outer walls of the aforementioned first mounting ring 101 and the second mounting ring 201 are both coaxially sleeved with a positioning slip ring 1200 , and the outer wall of the positioning slip ring 1200 is fixedly connected to the top end of the unloading partition plate 900 .

[0061] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage screening device for Chinese herbal medicine pieces, characterized in that: include: A first screening cylinder (100), wherein both ends of the first screening cylinder (100) are connected and arranged obliquely, and the outer wall of the first screening cylinder (100) is configured with a plurality of first screening holes, and the apertures of the first screening holes gradually increase along the axial direction of the first screening cylinder (100); A second screening cylinder (200), wherein both ends of the second screening cylinder (200) are connected and arranged obliquely, and the outer wall of the first screening cylinder (100) is configured with a plurality of second screening holes, and the apertures of the second screening holes gradually increase along the axial direction of the second screening cylinder (200); The smallest first sieve hole is arranged at the high end of the first screening cylinder (100), the smallest second sieve hole is arranged at the high end of the second screening cylinder (200), and the aperture of the smallest second sieve hole is larger than the aperture of the largest first sieve hole; The projections of the first screening cylinder (100) and the second screening cylinder (200) on a vertical plane are arranged to intersect; The bottom through-end of the first screening cylinder (100) is connected to the top through-end of the second screening cylinder (200) via a material lifting mechanism (300).

2. A multi-stage screening device for Chinese herbal medicine slices according to claim 1, characterized in that: The first screening drum (100) is configured with an inclined first rotating rod (400), and the first rotating rod (400) is coaxially connected to a rotating end of a first rotating motor (500) for driving the first screening drum (100); The second screening drum (200) is configured with an inclined second rotating rod (600), and the second rotating rod (600) is coaxially connected to a rotating end of a second rotating motor used for driving the second screening drum (200).

3. A multi-stage screening device for Chinese herbal medicine slices according to claim 2, characterized in that: The first screening cylinder (100) comprises first mounting rings (101) arranged in sequence along the axis of the first rotating rod (400); the first mounting rings (101) are coaxially arranged with the first rotating rod (400); the inner wall of the first mounting ring (101) is connected to the first rotating rod (400) via a first connecting rod (102); a first screening section (103) is detachably mounted between two adjacent first mounting rings (101); the first sieve holes on each of the first screening sections (103) are arranged with equal diameters; and the apertures of the first sieve holes on different first screening sections (103) gradually increase along the direction from high to low of the first rotating rod (400).

4. A multi-stage screening device for Chinese herbal medicine slices according to claim 3, characterized in that: The first screening section (103) comprises a plurality of first arc-shaped plates (1031) coaxially arranged with the first rotating rod (400); the plurality of first arc-shaped plates (1031) are connected to each other to surround the first screening section (103) in a cylindrical shape; the first arc-shaped plates (1031) are detachably connected to the first mounting ring (101).

5. A multi-stage screening device for Chinese herbal medicine slices according to claim 2, characterized in that: The second screening cylinder (200) comprises second mounting rings (201) arranged in sequence along the axis of the second rotating rod (600); the second mounting rings (201) are coaxially arranged with the second rotating rod (600); the inner wall of the second mounting ring (201) is connected to the second rotating rod (600) via a second connecting rod (202); a second screening section (203) is detachably mounted between two adjacent second mounting rings (201); the second sieve holes on each second screening section (203) are arranged with equal diameters; and the apertures of the second sieve holes on different second screening sections (203) gradually increase along the direction from high to low of the second rotating rod (600).

6. A multi-stage screening device for Chinese herbal medicine slices according to claim 5, characterized in that: The second screening section (203) comprises a plurality of second arc-shaped plates (2031) coaxially arranged with the second rotating rod (600); the plurality of second arc-shaped plates (2031) are connected to each other to surround the second screening section (203) in a cylindrical shape; the second arc-shaped plates (2031) are detachably connected to the second mounting ring (201).

7. A multi-stage screening device for Chinese herbal medicine slices according to claim 2, characterized in that: The first screening cylinder (100), the second screening cylinder (200) and the material lifting mechanism (300) are all arranged in a box body (700); A vertical screening partition plate (800) is constructed in the box body (700) and is arranged between the first screening cylinder (100) and the second screening cylinder (200); a plurality of discharge partition plates (900) are arranged between the screening partition plate (800) and the inner wall of the box body (700); a screening discharge channel (1000) is arranged between two adjacent discharge partition plates (900); each screening discharge channel (1000) is respectively connected to the screening discharge portion of the first screening cylinder (100) or the second screening cylinder (200); and the screening discharge channel (1000) is arranged to pass through the bottom surface of the box body (700); The top surface of the box body (700) is provided with a feed port (1100) which is in communication with the feed end of the first screening cylinder (100); The first rotating motor (500) and the second rotating motor are both arranged on the side wall of the box body (700).

8. The multi-stage screening device for Chinese herbal medicine slices according to claim 1, characterized in that: The first sieve hole and the second sieve hole are both circular sieve holes.

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