A screening device for forsythia processing

Abstract

The application relates to the technical field of screening devices, in particular to a screening device for forsythia suspensa processing, which comprises a mounting cabinet and a screening mechanism, a mounting cavity is formed in the mounting cabinet; a feeding cylinder is fixedly installed at one end of the mounting cabinet, one end of the feeding cylinder is a feeding end, and the other end is a discharging end; the screening mechanism comprises a screening cylinder, a driving assembly and a blowing assembly; the screening cylinder is rotationally connected to the inside of the mounting cavity, one end of the screening cylinder forms a feeding port, the other end forms a waste outlet, and the discharging end of the feeding cylinder is located inside the feeding port; the driving assembly is fixedly installed outside the mounting cabinet, and the driving assembly is connected with the screening cylinder; the blowing assembly is fixedly installed on the mounting cabinet, a blowing end of the blowing assembly is located in the mounting cavity, the blowing end is located below the discharging end of the feeding cylinder, and the blowing end blows air into the feeding cylinder. Through the above scheme, the forsythia and waste can be synchronously screened, the working strength of the staff is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of screening equipment technology, and in particular to a screening device for processing Forsythia suspensa. Background Technology

[0002] Forsythia, also known as Qingqiao, is a deciduous shrub with spreading or drooping branches. Its branches are brown, brownish-brown, or light yellowish-brown, while the twigs are yellowish-brown or grayish-brown, slightly quadrangular, sparsely covered with lenticels, hollow internodes, and solid pith at the nodes. The leaves are usually simple, or three-lobed to trifoliate compound leaves. Its roots, stems, leaves, and fruits are all used medicinally. As a common traditional Chinese medicine, it possesses various effects such as clearing heat and detoxifying, and antibacterial and anti-inflammatory properties, and is widely used in the field of traditional Chinese medicine. To ensure the efficacy and quality of forsythia, its processing technology is particularly important.

[0003] In existing technologies, the processing of forsythia generally includes steps such as harvesting, drying, cleaning, sorting, and processing. After harvesting, forsythia contains a large amount of impurities such as forsythia stalks and leaves. In existing technologies, screening devices are generally used to remove these impurities.

[0004] Existing screening devices include color sorters and ordinary screening machines. Color sorters offer better screening results, but their equipment cost is relatively high, and the subsequent operation and maintenance costs are also significant. Therefore, ordinary screening devices remain popular in processing. However, when ordinary screening devices screen for impurities such as half-shells and leaves in materials, they need to screen the half-shells and leaves separately. During the screening process, multiple devices or multiple screening operations are required to complete the screening work. This process results in high workload for workers and low screening efficiency. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a screening device for processing Forsythia suspensa, which can simultaneously screen Forsythia suspensa and waste materials, reducing the workload of workers and improving work efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this application provides a screening device for processing Forsythia suspensa, including a mounting cabinet and a screening mechanism. The mounting cabinet has an internal mounting cavity. A feed cylinder is fixedly mounted at one end of the mounting cabinet, with one end being the feed inlet and the other end being the discharge outlet. The screening mechanism includes a screen cylinder, a drive assembly, and a blowing assembly. The screen cylinder is rotatably connected to the interior of the mounting cavity, with one end forming a feed inlet and the other end forming a waste outlet. The discharge outlet of the feed cylinder is located inside the feed inlet. The drive assembly is fixedly mounted on the outside of the mounting cabinet, connected to the screen cylinder, and drives the screen cylinder to rotate. The blowing assembly is fixedly mounted on the mounting cabinet, with its blowing end located inside the mounting cavity and below the discharge outlet of the feed cylinder, blowing air into the feed cylinder.

[0009] Preferably, the screen cylinder includes a screening section and a waste section; the screening section is located near the end of the feed cylinder, the screening section is frustum-shaped, one end of the screening section is the feed inlet, and the diameter of the screening section near the feed inlet is larger than the diameter of the end away from the feed inlet; a material-pushing plate is fixed to the inner wall of the screening section, and multiple material-pushing plates are arranged at equal angles along the axial direction of the screening section, the material-pushing plates are located at the end away from the feed inlet; the discharge end of the feed cylinder is located on the side of the material-pushing plate near the feed inlet; one end of the waste section is the waste outlet; the waste section is frustum-shaped, and the diameter of the waste section near the waste outlet is larger than the diameter of the end away from the waste outlet.

[0010] Preferably, the screening cylinder section has uniformly distributed first screening holes on its sidewall, the diameter of which is 0.4cm-0.7cm. All the first screening holes are located on the sidewall of the feeding plate near the feed inlet. The mounting cabinet is provided with a first drawer and a second drawer. Both the first drawer and the second drawer are located below the screening cylinder section. The first drawer covers the discharge area of ​​all the first screening holes, and the second drawer covers the discharge area of ​​the feed inlet.

[0011] Preferably, the waste cylinder section has a second screening hole evenly distributed on its side wall, the diameter of the second screening hole being 1.3cm-1.5cm; the mounting cabinet is provided with a third drawer and a fourth drawer; the third drawer and the fourth drawer are both located below the waste cylinder section, the third drawer covering the discharge range of all the second screening holes, and the fourth drawer covering the discharge range of the waste outlet.

[0012] Preferably, a baffle plate is fixedly installed inside the mounting cabinet, the baffle plate is parallel to the screen cylinder, and the screen cylinder is located inside the baffle plate; there is a gap between the baffle plate and the screen cylinder, the gap being 5cm-10cm; an opening is provided on the side of the baffle plate near the ground; a scraper brush is fixed inside the baffle plate, the length direction of the scraper brush is coplanar with the axial direction of the baffle plate; the scraper brush is located on the side away from the long groove.

[0013] Preferably, a support ring is fixedly installed at one end of the screening cylinder section and the waste cylinder section that are close to each other, and the support ring is rotatably connected to the baffle plate; both ends of the screening cylinder are integrally formed with limit rings, and the outer wall of the limit ring is provided with an annular limit groove; a directional wheel is fixedly provided on the inner side of the baffle plate, and multiple directional wheels are provided at equal angular intervals, and the directional wheels abut against the limit groove.

[0014] Preferably, a scraper is fixed inside the mounting cabinet, the scraper is located inside the feed inlet, and the free end of the scraper elastically abuts against the screen cylinder.

[0015] Preferably, the blowing assembly includes a blower, a blowing plate, and an air inlet duct; the blower is fixed to the mounting cabinet; the blowing plate is fan-shaped, with a cavity formed on its inner side, and a blowing groove is formed on the arc-shaped side of the blowing plate, the blowing groove communicating with the cavity; a connecting pipe is integrally formed at one end of the blowing plate away from the arc-shaped side, and the connecting pipe communicating with the cavity; one end of the air inlet duct is connected to the blower, and the other end is connected to the connecting pipe; a mounting plate is fixed on the inner wall of the mounting cabinet, the mounting plate extending into the feed inlet, and the blowing plate is fixed to the mounting plate; the feed end of the feed cylinder is located above the blowing plate.

[0016] Preferably, the drive assembly includes a mounting frame and a drive motor. The mounting frame includes a support arm and a mounting base. One end of the support arm is fixedly connected to the screen cylinder, and the other end is fixedly connected to the mounting base. Multiple support arms are arranged at equal angular intervals. The output shaft of the drive motor is connected to the mounting base to control the rotation of the mounting base.

[0017] Preferably, a hopper is fixed to the upper side of the mounting cabinet, and a discharge port is formed in the middle of the hopper. The feed end of the feed cylinder is connected to the discharge port.

[0018] (III) Beneficial Effects

[0019] This invention provides a screening device for processing Forsythia suspensa. Through a mounting cabinet and an inner screening mechanism, when screening of Forsythia suspensa is required, the material falls into the screen cylinder through the feed cylinder. Inside the screen cylinder, an air-blowing component separates the Forsythia suspensa shells, leaves, and leaves from the material through air separation. The shells and leaves are blown to the waste section, while the heavier Forsythia suspensa remains in the screening section. Inside the screening section, the Forsythia suspensa undergoes secondary screening. Smaller Forsythia suspensa leaks through the first screening hole and enters the first drawer; larger Forsythia suspensa is discharged through the feed inlet and enters the second drawer. Inside the waste section, the air-separated Forsythia suspensa shells and leaves undergo a second screening, further separating them. This device, through its designed screen cylinder, completes air separation and screening simultaneously, reducing the workload of workers and significantly improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of a screening device for processing Forsythia according to the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of the A-structure in the middle;

[0022] Figure 3 A cross-sectional view to highlight the structure of the sieve cylinder;

[0023] Figure 4 A sectional view to highlight the structure of the blower plate.

[0024] Marked in the attached diagram:

[0025] 100. Mounting cabinet; 110. Mounting cavity; 120. Feed cylinder; 130. Hopper; 140. First drawer; 150. Second drawer; 160. Third drawer; 170. Fourth drawer; 180. Baffle plate; 181. Opening; 182. Scraper brush; 190. Directional wheel; 200. Screen cylinder; 210. Screening cylinder section; 211. Feed inlet; 212. Push plate; 213. First screening hole; 220. Waste cylinder section; 221. Waste outlet; 222. Second screening hole; 230. Support ring; 240. Limiting ring; 241. Limiting groove; 300. Drive assembly; 310. Mounting bracket; 311. Support arm; 312. Mounting base; 320. Drive motor; 400. Blowing assembly; 410. Blower; 420. Blowing plate; 421. Cavity; 422. Blowing slot; 423. Connecting pipe; 430. Air inlet pipe; 440. Mounting plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example

[0028] This invention provides a screening device for processing Forsythia suspensa, see [link to relevant documentation]. Figures 1 to 3 The system includes a mounting cabinet 100 and a screening mechanism. The mounting cabinet 100 has an internal mounting cavity 110. A feed cylinder 120 is fixedly mounted at one end of the mounting cabinet 100, with one end serving as the feed inlet and the other as the discharge outlet. A hopper 130 is fixedly mounted on the upper side of the mounting cabinet 100, with a discharge port in its middle. The hopper 130 is connected to the feed inlet of the feed cylinder 120 via the discharge port. During operation, the operator feeds material into the hopper 130, and the material to be screened enters the feed cylinder 120 through the discharge port, ultimately completing the screening process within the screening mechanism.

[0029] The screening mechanism includes a screen cylinder 200, a drive assembly 300, and an air blowing assembly 400. The drive assembly 300 is used to control the rotation of the screen cylinder 200, and the air blowing assembly 400 is used to perform air separation on the materials.

[0030] The screen cylinder 200 is rotatably connected to the interior of the mounting cavity 110. One end of the screen cylinder 200 forms a feed inlet 211, and the other end forms a waste outlet 221. The discharge end of the feed cylinder 120 is located inside the feed inlet 211. During screening, the material undergoes air separation at one end of the feed inlet 211. After air separation, the waste is discharged from the waste outlet 221, and the screened forsythia is discharged from the feed inlet 211.

[0031] Specifically, the screen cylinder 200 includes a screening section 210 and a waste section 220. The screening section 210 is located near the feed cylinder 120 and is frustoconical in shape. One end of the screening section 210 is the feed inlet 211. The diameter of the end of the screening section 210 near the feed inlet 211 is larger than the diameter of the end away from the feed inlet 211, thus forming an inclined surface inside the screening section 210. After the material is screened, during rotation, the Forsythia suspensa can gradually move towards the feed inlet 211. With the frustoconical screening section 210, after air separation, qualified Forsythia suspensa material will fall into the screening section 210 and be discharged from the feed inlet 211 during the rotation of the screening section 210.

[0032] A material-pushing plate 212 is fixed to the inner wall of the screening cylinder section 210. Multiple material-pushing plates 212 are spaced at equal angles along the axis of the screening cylinder section 210, with the latter located at the end furthest from the feed inlet 211. The discharge end of the feed cylinder 120 is located on the side of the material-pushing plate 212 closest to the feed inlet 211. During air separation, some waste material and intact forsythia will fall onto the section where the material-pushing plate 212 is located. As the screening cylinder section 210 rotates, the material-pushing plate 212 lifts up the material that has fallen onto this section, causing it to rotate with the screening cylinder section 210. When it rotates to the top, the material will fall again and undergo air separation once more. During continuous air separation, waste material and intact forsythia will be continuously separated. This method improves both air separation efficiency and the cleanliness of the separated material and waste.

[0033] Even better, first screening holes 213 are evenly provided on the side wall of the screening cylinder section 210. The diameter of the first screening holes 213 is 0.4cm-0.7cm, and all the first screening holes 213 are located on the side wall of the feeding plate 212 near the feed inlet 211. The diameter of Forsythia suspensa is generally between 0.5-1cm. Through the provided first screening holes 213, complete Forsythia suspensa can be screened a second time. Smaller Forsythia suspensa will pass through the first screening holes 213, while larger Forsythia suspensa will be discharged through the feed inlet 211.

[0034] One end of the waste cylinder section 220 is the waste outlet 221; the waste cylinder section 220 is frustum-shaped, and the diameter of the end of the waste cylinder section 220 near the waste outlet 221 is larger than the diameter of the end away from the waste outlet 221. Furthermore, an inclined surface is formed inside the waste cylinder section 220, and the waste will be gradually discharged during the rotation of the screen cylinder 200.

[0035] The waste cylinder section 220 has a second screening hole 222 evenly provided on its side wall. The diameter of the second screening hole 222 is 1.3cm-1.5cm. The leaves and forsythia shells / forsythia can be separated through the second screening hole 222.

[0036] Even better, the mounting cabinet 100 is provided with a first drawer 140 and a second drawer 150; both the first drawer 140 and the second drawer 150 are located below the screening cylinder section 210. The first drawer 140 covers the entire discharge area of ​​the first screening holes 213 and is used to collect smaller Forsythia suspensa falling from the first screening holes 213. The second drawer 150 covers the discharge area of ​​the feed inlet 211 and is used to collect larger Forsythia suspensa discharged from the feed inlet 211.

[0037] The mounting cabinet 100 is also equipped with a third drawer 160 and a fourth drawer 170; both the third drawer 160 and the fourth drawer 170 are located below the waste cylinder section 220. The third drawer 160 covers the entire discharge area of ​​the second screening holes 222 and is used for collecting forsythia shells / forsythia. The fourth drawer 170 covers the discharge area of ​​the waste outlet 221 and is used for collecting leaves and waste.

[0038] A baffle plate 180 is fixedly installed inside the mounting cabinet 100. The baffle plate 180 is annular and parallel to the screen cylinder 200, meaning the shape of the baffle plate 180 is the same as that of the screen cylinder 200. The screen cylinder 200 is located inside the baffle plate 180; there is a gap between the baffle plate 180 and the screen cylinder 200, with a gap of 5cm-10cm; an opening 181 is provided on the side of the baffle plate 180 closest to the ground; during operation, materials falling through the first screening hole 213, the second screening hole 222, the feed inlet 211, and the waste outlet 221 can all enter the first drawer 140, the second drawer 150, the third drawer 160, or the fourth drawer 170 through the opening 181. Because of the baffle plate 180, the screened material is prevented from splashing everywhere, greatly ensuring the cleanliness inside the mounting cabinet 100.

[0039] Even better, a scraper brush 182 is fixed inside the baffle plate 180, with the length direction of the scraper brush 182 coplanar with the axial direction of the baffle plate 180; the scraper brush 182 is located on the side away from the long trough. When the inner screen cylinder 200 rotates, the scraper brush 182 can scrape the outer surface of it, thereby pushing back the material stuck in the screening hole and preventing the screening hole from being blocked.

[0040] A support ring 230 is fixedly installed at one end of the screening cylinder section 210 and the waste cylinder section 220 that are close to each other. The support ring 230 is rotatably connected to the baffle plate 180. The support ring 230 supports the middle part of the entire screen cylinder 200.

[0041] Both ends of the screen cylinder 200 are integrally formed with limiting rings 240, and the outer wall of the limiting rings 240 is provided with annular limiting grooves 241. A guide wheel 190 is fixedly installed on the inner side of the baffle plate 180. Multiple guide wheels 190 are arranged at equal angles and abut against the limiting grooves 241. Specifically, the guide wheel is detachably connected to the baffle plate 180. An installation port is provided on the baffle plate 180. After the guide wheel passes through the installation port, the mounting seat 312 of the guide wheel is fixed to the baffle plate 180, and the guide wheel abuts against the limiting grooves 241. Thus, the guide wheel limits the rotation of both ends of the screen cylinder 200.

[0042] A scraper is fixed inside the mounting cabinet 100, located inside the feed inlet 211, with its free end elastically abutting against the screen cylinder 200. Even better, the scraper can have a certain degree of elasticity, allowing for rapid control of the scraper's discharge from the screen cylinder 200 after screening.

[0043] See Figure 1 and Figure 2 The drive assembly 300 is fixedly installed on the outside of the mounting cabinet 100. The drive assembly 300 is connected to the screen cylinder 200 and drives the screen cylinder 200 to rotate. The rotation of the screen cylinder 200 is controlled by the drive assembly 300.

[0044] The drive assembly 300 includes a mounting frame 310 and a drive motor 320. The mounting frame 310 includes a support arm 311 and a mounting base 312. One end of the support arm 311 is fixedly connected to the screen cylinder 200, and the other end is fixedly connected to the mounting base 312. Multiple support arms 311 are arranged at equal angular intervals. The output shaft of the drive motor 320 is connected to the mounting base 312 to control the rotation of the mounting base 312. The connection method between the drive motor 320 and the mounting base 312 can be a belt connection, a gear transmission connection, or a chain connection, whichever is more specific.

[0045] When the material falls from the feed cylinder 120, the blowing assembly 400 is used to perform air separation on the material during the falling process. The blowing assembly 400 is fixedly installed on the mounting cabinet 100. The blowing end of the blowing assembly 400 is located inside the mounting cavity 110 and below the discharge end of the feed cylinder 120. The blowing end blows air into the feed cylinder 120, and the material air separation is completed during the blowing process.

[0046] See Figure 1 and Figure 4 The blower assembly 400 includes a blower 410, a blower plate 420, and an air inlet duct 430.

[0047] Blower 410 is fixed to mounting cabinet 100; air blowing plate 420 is fan-shaped, with a cavity 421 formed on the inner side of air blowing plate 420, and air blowing groove 422 is opened on the arc-shaped side of air blowing plate 420, which connects to cavity 421. A connecting pipe 423 is integrally formed at the end of air blowing plate 420 away from the arc-shaped side, and the connecting pipe 423 connects to cavity 421; one end of air inlet pipe 430 is connected to blower 410, and the other end is connected to connecting pipe 423. During operation, blower 410 blows air onto air blowing plate 420, and air blowing plate 420 performs air separation on materials. Mounting plate 440 is fixed to the inner wall of mounting cabinet 100, and mounting plate 440 extends into feed inlet 211. Air blowing plate 420 is fixed to mounting plate 440. During installation, feed end of feed cylinder 120 is located above air blowing plate 420.

[0048] This invention provides a screening device for processing Forsythia suspensa, the working process of which is as follows: When screening Forsythia suspensa is required, the material to be screened is continuously fed into the hopper 130, and the material in the hopper 130 is continuously fed into the discharge port. The material enters the feed cylinder 120 through the discharge port and finally falls out from the discharge end of the feed cylinder 120. During this process, the screen cylinder 200 is rotated under the drive of the drive component 300, and the blowing component 400 continues to blow air.

[0049] A blowing assembly 400 is installed below the feed cylinder 120. During the material falling process, the blowing assembly 400 performs air separation on the material, separating the forsythia shells, leaves, and forsythia leaves. The forsythia shells and leaves are blown to the waste cylinder section 220, while the heavier forsythia leaves remain in the screening cylinder section 210. When some forsythia shells and leaves fail to enter the waste cylinder section 220, they will remain at the part of the material guide plate 212. When the feed cylinder 120 rotates, it will drive this part of the forsythia shells and leaves to pass through the air separation again until they are completely inside the waste cylinder section 220. At the same time, since the screening cylinder section 210 is cylindrical in shape and has an inclined surface inside, during the rotation, it will also throw out the complete forsythia leaves at the part of the material guide plate 212, separating them from the forsythia shells and leaves.

[0050] Inside the screening cylinder section 210, since the screening cylinder section 210 has a first screening hole 213, the Forsythia after air separation will undergo a second screening during the outward rotation process. The smaller Forsythia leaks out through the first screening hole 213 and enters the first drawer 140; the larger Forsythia is discharged through the feed inlet 211 and enters the second drawer 150.

[0051] Inside the waste cylinder section 220, a second screening hole 222 is provided to screen the forsythia shells and leaves after air separation, thereby separating the forsythia shells and leaves.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Without conflict, the embodiments and features in the embodiments of this invention can be combined with each other.

[0054] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A screening device for processing Forsythia suspensa, comprising a mounting cabinet (100) and a screening mechanism, characterized in that: The mounting cabinet (100) has an mounting cavity (110) inside; a feeding cylinder (120) is fixedly installed at one end of the mounting cabinet (100), with one end of the feeding cylinder (120) being the feeding end and the other end being the discharging end; The screening mechanism includes a sieve cylinder (200), a drive assembly (300), and a blowing assembly (400). The screen cylinder (200) is rotatably connected to the interior of the mounting cavity (110). One end of the screen cylinder (200) forms a feed inlet (211), and the other end forms a waste outlet (221). The discharge end of the feed cylinder (120) is located inside the feed inlet (211). The drive assembly (300) is fixedly installed on the outside of the mounting cabinet (100), the drive assembly (300) is connected to the screen cylinder (200), and drives the screen cylinder (200) to rotate; The blowing assembly (400) is fixedly installed on the mounting cabinet (100). The blowing end of the blowing assembly (400) is located inside the mounting cavity (110). The blowing end is located below the discharge end of the feed cylinder (120). The blowing end blows air into the feed cylinder (120). The screen cylinder (200) includes a screening cylinder section (210) and a waste cylinder section (220). The screening cylinder section (210) is located at one end close to the feed cylinder (120). The screening cylinder section (210) is frustum-shaped. One end of the screening cylinder section (210) is the feed inlet (211). The diameter of the end of the screening cylinder section (210) close to the feed inlet (211) is larger than the diameter of the end away from the feed inlet (211). The inner wall of the screening cylinder section (210) is fixed with a material-pulling plate (212). Multiple material-pulling plates (212) are arranged at equal angles along the axial direction of the screening cylinder section (210). The material-pulling plate (212) is located at the end away from the feed inlet (211). The discharge end of the feed cylinder (120) is located on the side of the material-pulling plate (212) close to the feed inlet (211). One end of the waste cylinder section (220) is the waste outlet (221); the waste cylinder section (220) is frustum-shaped, and the diameter of the end of the waste cylinder section (220) near the waste outlet (221) is larger than the diameter of the end away from the waste outlet (221); The screening cylinder section (210) has first screening holes (213) evenly distributed on its side wall.

2. The screening device for processing Forsythia according to claim 1, characterized in that: The diameter of the first screening hole (213) is 0.4cm-0.7cm, and all the first screening holes (213) are located on the side wall of the feeding plate (212) near the feed inlet (211); The mounting cabinet (100) is provided with a first drawer (140) and a second drawer (150); the first drawer (140) and the second drawer (150) are both located below the screening cylinder section (210), the first drawer (140) covers the discharge range of all the first screening holes (213); the second drawer (150) covers the discharge range of the feed inlet (211).

3. The screening device for processing Forsythia according to claim 1, characterized in that: The waste cylinder section (220) has a second screening hole (222) evenly provided on its side wall, and the diameter of the second screening hole (222) is 1.3cm-1.5cm; The mounting cabinet (100) is provided with a third drawer (160) and a fourth drawer (170); the third drawer (160) and the fourth drawer (170) are both located below the waste cylinder section (220), the third drawer (160) covers the discharge range of all the second screening holes (222), and the fourth drawer (170) covers the discharge range of the waste outlet (221).

4. The screening device for processing Forsythia according to claim 3, characterized in that: A baffle plate (180) is fixedly installed on the inner side of the installation cabinet (100); The baffle plate (180) is parallel to the screen cylinder (200), and the screen cylinder (200) is located inside the baffle plate (180); there is a gap between the baffle plate (180) and the screen cylinder (200), and the gap is 5cm-10cm; The baffle plate (180) has an opening (181) on one side near the ground; a scraper brush (182) is fixed inside the baffle plate (180), and the length direction of the scraper brush (182) is coplanar with the axial direction of the baffle plate (180); the scraper brush (182) is located on the side away from the long groove.

5. The screening device for processing Forsythia according to claim 4, characterized in that: A support ring (230) is fixedly installed at one end of the screening cylinder section (210) and the waste cylinder section (220) that are close to each other, and the support ring (230) is rotatably connected to the baffle plate (180); Both ends of the screen cylinder (200) are integrally formed with limiting rings (240), and the outer side wall of the limiting rings (240) is provided with an annular limiting groove (241); the inner side of the baffle plate (180) is fixedly provided with a directional wheel (190), and multiple directional wheels (190) are provided at equal angle intervals, and the directional wheels (190) abut against the limiting groove (241).

6. The screening device for processing Forsythia according to claim 1, characterized in that: A scraper is fixed inside the mounting cabinet (100), the scraper is located inside the feed inlet (211), and the free end of the scraper elastically abuts against the screen cylinder (200).

7. The screening device for processing Forsythia according to claim 1, characterized in that: The blowing assembly (400) includes a blower (410), a blowing plate (420), and an air inlet duct (430). The blower (410) is fixed on the mounting cabinet (100); the blower plate (420) is fan-shaped, and a cavity (421) is formed on the inner side of the blower plate (420). A blower groove (422) is provided on the arc-shaped side of the blower plate (420), and the blower groove (422) is connected to the cavity (421). A connecting pipe (423) is integrally formed at one end of the blower plate (420) away from the arc-shaped side, and the connecting pipe (423) is connected to the cavity (421); one end of the air inlet pipe (430) is connected to the blower (410), and the other end is connected to the connecting pipe (423). An installation plate (440) is fixed on the inner wall of the installation cabinet (100), the installation plate (440) extends into the feed inlet (211), and the blower plate (420) is fixed on the installation plate (440); The feed end of the feed cylinder (120) is located above the blower plate (420).

8. The screening device for processing Forsythia according to claim 1, characterized in that: The drive assembly (300) includes a mounting bracket (310) and a drive motor (320); The mounting frame (310) includes a support arm (311) and a mounting base (312). One end of the support arm (311) is fixedly connected to the screen cylinder (200), and the other end is fixedly connected to the mounting base (312). Multiple support arms (311) are arranged at equal angles. The output shaft of the drive motor (320) is connected to the mounting base (312) to control the rotation of the mounting base (312).

9. The screening device for processing Forsythia according to claim 1, characterized in that: A hopper (130) is fixed on the upper side of the mounting cabinet (100), and a discharge port is formed in the middle of the hopper (130). The feeding end of the feeding cylinder (120) is connected to the discharge port.

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