Negative-pressure adsorption type impurity separating and screening device for Chinese prickly ash

By using a negative pressure fan to adsorb and a screen vibration mechanism to separate fine impurities from Sichuan peppercorns, the problem of environmental pollution and cleaning difficulties during the separation process is solved, achieving efficient impurity removal and improved cleanliness of the Sichuan peppercorns.

CN224237489UActive Publication Date: 2026-05-15FENGXIAN DINGYU AGRICULTURE & FORESTRY PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FENGXIAN DINGYU AGRICULTURE & FORESTRY PRODUCTS CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing technologies are ineffective at removing fine impurities such as hair, filaments, and dust during the separation of Sichuan peppercorns, leading to environmental pollution and cleaning difficulties, which affect the quality and market value of the peppercorns.

Method used

A negative pressure fan is used to adsorb fine impurities, and the screen is vibrated by an eccentric cam and spring to separate the peppercorns from the impurities.

Benefits of technology

It effectively removes fine impurities, reduces environmental pollution, improves the cleanliness and efficiency of Sichuan peppercorns, and enhances their market value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pepper negative pressure adsorption type impurity separation screener which comprises two supporting frames, a shell is fixedly connected between the two supporting frames, an air suction opening is formed in one side of the shell, a negative pressure fan is fixedly arranged on the other side of the shell, a feeding opening is formed in the top end of the shell, and a discharging opening is formed in the top end of the shell. A discharging port is formed in the bottom end of the shell, a threshing mechanism is arranged at the upper end of the interior of the shell, and a screen vibration mechanism is arranged in the shell. According to the pepper negative pressure adsorption type impurity separating and screening device, the negative pressure fan is arranged to absorb small impurities, such as hair, filaments and dust, passing through the meshes after screening, the small impurities are discharged to a designated storage area through the air outlet pipe, and the small impurities are discharged into the air after being purified by a follow-up purification device; on one hand, environmental pollution caused by too much dust can be avoided, on the other hand, pepper can be cleaner, and the follow-up cleaning efficiency of workers is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pepper screening and separation, and more particularly to a pepper negative pressure adsorption impurity separation and screening device. Background Technology

[0002] Sichuan pepper, a plant with a long history and wide range of uses, is a common seasoning in food. Its pungent and numbing flavor can enhance the taste of dishes. At the same time, in traditional Chinese medicine, Sichuan pepper has the effects of warming the yang and dispelling cold, promoting qi circulation and removing dampness, and killing insects and expelling parasites. It is often used to treat symptoms such as abdominal pain, diarrhea, and cold-dampness pain caused by cold. Sichuan pepper has important value in many aspects.

[0003] As a commonly used condiment and medicinal herb, Sichuan pepper inevitably gets mixed with various impurities during planting and harvesting. These impurities not only affect the quality and taste of the pepper but also reduce its market value. Currently, in the process of separating and removing impurities from Sichuan pepper, threshers and vibrating screens are used to separate large impurities such as pepper leaves, but the collection of some small impurities, such as hair, filaments, and dust, is neglected. These small impurities not only cause environmental pollution, causing workers to inhale dust and affecting their health, but also mix into the separated pepper particles, causing trouble for workers in subsequent cleaning. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a negative pressure adsorption impurity separation and screening device for Sichuan pepper.

[0005] The following technical solution is adopted: a negative pressure adsorption impurity separator for Sichuan pepper includes two support frames, with a housing fixedly connected between the two support frames. An air intake is provided on one side of the housing, and a negative pressure fan is fixedly provided on the other side of the housing. A feed inlet is provided at the top of the housing, and a discharge outlet is provided at the bottom of the housing. A threshing mechanism is provided at the upper part of the housing, and a screen vibration mechanism is provided inside the housing.

[0006] Optionally, the negative pressure fan includes an air outlet pipe, a ventilation mesh is fixedly connected to the inner wall of the air outlet pipe, a first motor is fixedly installed on one side of the ventilation mesh, and a negative pressure fan blade is sleeved on the drive end of the first motor.

[0007] Optionally, the threshing mechanism includes a second motor, which is fixedly connected to the upper rear part of the housing. The drive shaft of the second motor passes through the inner wall of the housing and is fixedly connected to a roller. The drive end of the second motor is rotatably connected to the inner wall of the housing. Four positioning strips are fixedly connected to the side of the roller. Several impact pins are fixedly connected to the top of the four positioning strips. The impact pins are linearly distributed along the central axis of the roller.

[0008] Optionally, the screen vibration mechanism includes a limiting block, the top of which is fixedly connected to the inner wall of the housing, a spring is fixedly connected to the bottom of the limiting block, a screen is fixedly connected to the bottom of the spring, and a plurality of mesh holes are provided at the bottom of the inner wall of the screen.

[0009] Optionally, two clamping plates are fixedly connected to the bottom of the screen, and a third motor is fixedly installed between the two clamping plates. An eccentric cam is sleeved on the drive end of the third motor.

[0010] Optionally, the maximum length and width of the sieve are both less than the length and width of the horizontal cross-section in the middle of the shell, and the inner diameter of the mesh is slightly larger than the peppercorn particles.

[0011] Optionally, the number of limiting blocks is four, and the four limiting blocks are symmetrically distributed in pairs at the four corners of the inner wall of the shell, and each of them is fixedly connected to the four corners of the top of the screen by springs.

[0012] Optionally, the negative pressure fan and air intake are located below the screen vibration mechanism.

[0013] The technical effects that can be achieved by the technical means of this utility model are as follows:

[0014] (1) In this utility model, by setting a negative pressure fan, fine impurities such as hair, filaments, and dust that pass through the mesh after screening are absorbed and discharged to the designated storage area through the air outlet pipe. After being purified by the subsequent purification device, they are discharged into the air. On the one hand, this can avoid pollution to the environment due to excessive dust. On the other hand, it can also make the peppercorns cleaner and improve the cleaning efficiency of the staff.

[0015] (2) In this utility model, by setting a screen vibration mechanism, the eccentric force during the rotation of the eccentric cam and the unstable force brought by the spring are used to drive the screen to vibrate, shake the pepper particles off the mesh, and thus separate the pepper from impurities such as leaves. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in half-section.

[0018] Figure 3 This is a three-dimensional structural diagram of the threshing structure of this utility model.

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the screen vibration mechanism of this utility model.

[0020] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the negative pressure fan of this utility model.

[0021] In the diagram: 1. Support frame; 2. Negative pressure fan; 201. Air outlet pipe; 202. Ventilation mesh; 203. Negative pressure fan blades; 204. First motor; 3. Housing; 4. Feed inlet; 5. Air intake; 6. Threshing mechanism; 601. Second motor; 602. Impact pin; 603. Roller; 604. Positioning strip; 7. Screen vibration mechanism; 701. Limiting block; 702. Spring; 703. Screen; 704. Third motor; 705. Clamping plate; 706. Eccentric cam; 707. Mesh; 8. Discharge port. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be noted that the orientations or positional relationships indicated by terms such as "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] A preferred embodiment of the pepper negative pressure adsorption impurity separation and screening device provided by this utility model is, for example... Figures 1 to 5As shown: A negative pressure adsorption impurity separator for Sichuan pepper includes two support frames 1, with a housing 3 fixedly connected between the two support frames 1. An air intake 5 is provided on one side of the housing 3, and a negative pressure fan 2 is fixedly provided on the other side of the housing 3. An inlet 4 is provided at the top of the housing 3, and an outlet 8 is provided at the bottom of the housing 3. A threshing mechanism 6 is provided at the upper part of the interior of the housing 3, and a screen vibration mechanism 7 is provided inside the housing 3. The negative pressure fan 2 and the air intake 5 are located below the screen vibration mechanism 7 to facilitate the absorption of fine impurities passing through the mesh 707. Sichuan pepper to be separated is poured into the inlet 4, allowing the threshing mechanism 6 to thresh the peppers. The threshed Sichuan peppers are output from the device through the outlet 8.

[0026] In this embodiment, the negative pressure fan 2 includes an air outlet pipe 201, a ventilation net 202 is fixedly connected to the inner wall of the air outlet pipe 201, a first motor 204 is fixedly provided on one side of the ventilation net 202, and a negative pressure fan blade 203 is sleeved on the drive end of the first motor 204.

[0027] The above scheme starts the first motor 204, which drives the negative pressure fan blade 203 to rotate, drawing in external air from the air inlet 5. This absorbs fine impurities such as hair, filaments, and dust that have passed through the mesh 707 after sieving, and discharges them to the designated collection area through the air outlet 201. After being purified by the subsequent purification device, the air is discharged into the air.

[0028] In this embodiment, the threshing mechanism 6 includes a second motor 601, which is fixedly connected to the upper rear part of the housing 3. The drive shaft of the second motor 601 passes through the inner wall of the housing 3 and is fixedly connected to a roller 603. The drive end of the second motor 601 is rotatably connected to the inner wall of the housing 3. Four positioning strips 604 are fixedly connected to the side of the roller 603. Several impact pins 602 are fixedly connected to the top of the four positioning strips 604. The several impact pins 602 are linearly distributed along the central axis of the roller 603.

[0029] Using the above method, the second motor 601 is started, and the driving end of the second motor 601 drives the roller 603 to rotate, thereby driving the positioning strip 604 to rotate, so that several impact needles 602 come into contact with and collide with the peppercorns to be separated, thereby achieving the purpose of separation.

[0030] In this embodiment, the screen vibration mechanism 7 includes a limiting block 701. The top end of the limiting block 701 is fixedly connected to the inner wall of the housing 3. A spring 702 is fixedly connected to the bottom end of the limiting block 701. A screen 703 is fixedly connected to the bottom end of the spring 702. Several mesh holes 707 are opened at the bottom of the inner wall of the screen 703. Two clamping plates 705 are fixedly connected to the bottom end of the screen 703. A third motor 704 is fixedly installed between the two clamping plates 705. An eccentric cam 706 is sleeved on the drive end of the third motor 704. There are four limiting blocks 701. The four limiting blocks 701 are symmetrically distributed in pairs at the four corners of the inner wall of the housing 3, and each is fixedly connected to the top four corners of the screen 703 by the spring 702.

[0031] The above scheme activates two third motors 704. The drive end of the third motors 704 rotates, causing the eccentric cam 706 to rotate. The eccentric force generated by the rotation of the eccentric cam 706 and the unstable force from the spring 702 cause the screen 703 to vibrate, shaking the peppercorn particles off through the mesh 707. It should be noted that the maximum length and width of the screen 703 are both smaller than the length and width of the horizontal cross-section in the middle of the shell 3, ensuring sufficient space for the screen 703 to operate during the sieving process. The inner diameter of the mesh 707 is slightly larger than the peppercorn particles. This prevents larger impurities other than peppercorns from falling, thus achieving the purpose of sieving.

[0032] Working principle: When operating and using this utility model, as follows... Figures 1 to 5 As shown, the peppercorns to be separated are poured into the housing 3 through the feed inlet 4. Simultaneously, the second motor 601 is started. The drive end of the second motor 601 drives the roller 603 to rotate, which in turn drives the positioning strip 604 to rotate. This causes several impacting needles 602 to contact and collide with the peppercorns to be separated, thus achieving separation. The separated peppercorn particles and impurities then fall into the screen vibration mechanism 7. Two third motors 704 are then started. The drive ends of the third motors 704 rotate, driving the eccentric cam 706 to rotate. The rotation of the eccentric cam 706... The eccentric force and the unstable force brought by the spring 702 during the process cause the screen 703 to vibrate, shaking the peppercorns off the mesh 707. The first motor 204 is started, driving the negative pressure fan blade 203 to rotate, drawing in external air from the air intake 5. This air can absorb the fine impurities that have passed through the mesh 707 after screening, such as hair, filaments, and dust, and discharge them to the designated collection area through the air outlet 201. After being purified by the subsequent purification device, the air is discharged. The screened peppercorns are finally discharged from the discharge port 8 and collected by the staff.

[0033] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A negative pressure adsorption impurity separator for Sichuan pepper, comprising two support frames (1), characterized in that: A housing (3) is fixedly connected between the two support frames (1). A suction port (5) is provided on one side of the housing (3), and a negative pressure fan (2) is fixedly provided on the other side of the housing (3). A feed inlet (4) is provided at the top of the housing (3), and a discharge port (8) is provided at the bottom of the housing (3). A threshing mechanism (6) is provided at the upper part of the inside of the housing (3), and a screen vibration mechanism (7) is provided inside the housing (3). The negative pressure fan (2) includes an air outlet pipe (201), and a ventilation net (202) is fixedly connected to the inner wall of the air outlet pipe (201). A first motor (204) is fixedly provided on one side of the ventilation net (202), and a negative pressure fan blade (203) is sleeved on the drive end of the first motor (204).

2. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 1, characterized in that: The threshing mechanism (6) includes a second motor (601), which is fixedly connected to the upper rear part of the housing (3). The drive shaft of the second motor (601) passes through the inner wall of the housing (3) and is fixedly connected to a roller (603). The drive end of the second motor (601) is rotatably connected to the inner wall of the housing (3). Four positioning strips (604) are fixedly connected to the side of the roller (603). Several impact pins (602) are fixedly connected to the top of the four positioning strips (604). The several impact pins (602) are linearly distributed along the central axis of the roller (603).

3. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 1, characterized in that: The screen vibration mechanism (7) includes a limiting block (701), the top of the limiting block (701) is fixedly connected to the inner wall of the housing (3), the bottom of the limiting block (701) is fixedly connected to a spring (702), the bottom of the spring (702) is fixedly connected to a screen (703), and the bottom of the inner wall of the screen (703) is provided with a plurality of mesh holes (707).

4. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 3, characterized in that: The bottom end of the screen (703) is fixedly connected to two clamping plates (705), and a third motor (704) is fixedly installed between the two clamping plates (705). An eccentric cam (706) is sleeved on the drive end of the third motor (704).

5. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 3, characterized in that: The maximum length and width of the sieve (703) are both smaller than the length and width of the horizontal cross-section in the middle of the shell (3), and the inner diameter of the mesh (707) is slightly larger than the peppercorn particles.

6. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 3, characterized in that: The number of the limiting blocks (701) is four. The four limiting blocks (701) are symmetrically distributed in pairs at the four corners of the inner wall of the shell (3), and are all fixedly connected to the four corners of the top of the screen (703) by springs (702).

7. The Sichuan pepper negative pressure adsorption impurity separation and screening device according to claim 1, characterized in that: The negative pressure fan (2) and the air inlet (5) are located below the screen vibration mechanism (7).