Screening and winnowing device for tea deep processing and cleaning
The device addresses inefficiencies in traditional tea processing by employing multiple air separations and a self-cleaning mechanism with a sweeping brush structure to enhance screening accuracy and simplify maintenance.
Patent Information
- Application Number
- CN202420512667.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-15
AI Technical Summary
Traditional tea processing devices face inefficiencies in cleaning due to impurities and broken leaves adhering to air separation boxes and clogging screening mesh plates, leading to cumbersome maintenance and reduced screening effectiveness.
A device comprising an air separation box with multiple exhaust fans, a screening box with a vibration motor and a sweeping brush structure, including a servo motor, bidirectional ball screw, and a soft brush, to facilitate efficient separation and cleaning of tea leaves by removing impurities and broken leaves.
The device achieves improved screening accuracy and simplified cleaning by using multiple air separations and a self-cleaning mechanism, ensuring a stable and efficient tea leaf processing operation.
Smart Images
Figure CN222241384U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tea processing, in particular to a screening and air separation device for deep processing and cleaning of tea. Background Art
[0002] Tea processing is the process of handling and processing the picked tea leaves to achieve the purpose of preserving freshness, enhancing fragrance, flavor and improving appearance. In the traditional tea processing process, wind selection and screening of tea leaves are very important links.
[0003] Air separation refers to the use of airflow to separate impurities, light tea leaves, and special-shaped tea leaves from tea leaves, so as to obtain tea leaves of better quality. Traditional air separation devices generally use air separation boxes, which use exhaust fans to generate negative pressure to extract the tea leaves together with the air, thereby achieving preliminary tea separation. However, traditional air separation devices have some problems in cleaning. A large amount of impurities and broken leaves will be generated during tea processing, and these impurities and broken leaves will adhere to the bottom wall of the air separation box, making cleaning work cumbersome and inefficient.
[0004] Screening refers to the separation and classification of tea leaves according to different particle sizes. Traditional screening devices generally use a combination of a screening box and a screening mesh plate, and the tea leaves are separated on the screening mesh plate through the different sizes of mesh holes. However, traditional screening devices also have some problems in cleaning. Since there are some broken leaves in the tea leaves, these broken leaves can easily clog the mesh holes of the screening mesh plate, reducing the screening effect and requiring frequent cleaning and maintenance. Utility Model Content
[0005] In order to solve the above problems, the utility model proposes a screening and air selection device for deep processing and cleaning of tea leaves, comprising an air selection box and a screening box, the side walls of the air selection box and the screening box are provided with a connecting groove connecting the air selection box and the screening box; a feed hopper is installed at one end of the top of the air selection box, an inclined feeding plate is arranged in the air selection box, the top of the inclined feeding plate is inclined downward in the direction away from the feed hopper, a plurality of leaf spreading blocks are fixed on the inner wall of the air selection box, the farther the leaf spreading block is from one end of the feed hopper, the shorter the distance between the bottom of the leaf spreading block and the inclined feeding plate is, an exhaust fan is installed on the side wall of the leaf spreading block, and an exhaust duct is installed above the exhaust fan; a screening mesh plate is arranged in the screening box, a vibration motor is installed below the screening mesh plate, an assisting plate fixed to the inner wall of the screening box is arranged above the screening mesh plate, buffer springs are fixed between the two ends of the top of the screening mesh plate and the bottom of the assisting plate, and a sweeping brush structure for cleaning the screening mesh plate is also arranged in the screening box.
[0006] Furthermore, the sweeping brush structure includes a servo motor installed on the assisting plate, the output end of the servo motor is connected to a bidirectional ball screw, the outer side of the bidirectional ball screw is connected to a transverse mounting block, the transverse mounting block is slidably connected to the assisting plate, and a sliding groove for the transverse mounting block to slide is provided on the assisting plate, the transverse mounting block extends to the bottom of the assisting plate, and a soft brush is pasted on the bottom of the transverse mounting block.
[0007] Furthermore, a cleaning window is hinged on the side wall of the screening box, and the inclined feeding plate can be pulled out by opening the cleaning window; a material collecting window is hinged on the side wall of the screening box, and the tea leaves on the screening mesh plate can be collected by opening the material collecting window, and the soft brush can also be replaced through the material collecting window.
[0008] Furthermore, an inclined plate support seat is fixed in the air separation box, an inclined feeding plate is arranged on the top of the inclined plate support seat, a snap-in slide block is fixed on the bottom of the inclined plate support seat, and a snap-in slide groove is correspondingly opened on the top of the inclined plate support seat.
[0009] Furthermore, a broken leaf collecting hopper fixed to the screening box is arranged below the screening mesh plate, and a broken leaf recovery frame is arranged below the screening box.
[0010] The beneficial effects of the utility model are as follows:
[0011] 1. Through multiple air selections with multiple exhaust fans, the exhaust fans generate negative pressure to draw away the tea leaves together with the air, remove impurities and light tea leaves, and achieve preliminary separation and arrangement; through the cooperation of the screening mesh plate and the vibration motor, the smaller tea leaves fall into the leaf collection hopper below through the pores of the screening mesh plate, thereby improving the screening accuracy of the tea leaves; a sweeping brush structure is set in the device, including a servo motor, a bidirectional ball screw, a transverse mounting block and a soft brush and other components to clean the screening mesh plate, remove the tea leaves and leaf fragments remaining in the mesh, and maintain a stable and lasting screening effect.
[0012] 2. By opening the cleaning window, you can easily pull out the inclined feeding plate for cleaning, and by opening the collecting window, you can collect the tea leaves on the screening mesh or replace the soft brush. This greatly simplifies the cleaning work of the device and improves the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the internal structure of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the sweeping brush structure in the utility model.
[0015] The accompanying drawings are marked as follows: 1. Air separation box; 2. Screening box; 3. Feed hopper; 4. Inclined feeding plate; 5. Leaf spreading block; 6. Exhaust fan; 7. Exhaust duct; 8. Screening mesh plate; 9. Vibration motor; 10. Assisting plate; 11. Buffer spring; 121. Servo motor; 122. Bidirectional ball screw; 123. Transverse mounting block; 124. Soft brush; 13. Inclined plate support seat; 14. Snap-on slider; 15. Broken leaf collection hopper; 16. Broken leaf recovery frame. DETAILED DESCRIPTION
[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.
[0018] The utility model is further described below in conjunction with the accompanying drawings:
[0019] A screening and air separation device for deep processing and cleaning of tea leaves, such as Figure 1As shown, it includes an air separation box 1 and a screening box 2, and the side walls of the air separation box 1 and the screening box 2 are provided with a connecting groove connecting the air separation box 1 and the screening box 2; a feed hopper 3 is installed at one end of the top of the air separation box 1, and an inclined feeding plate 4 is arranged in the air separation box 1, and the top of the inclined feeding plate 4 is inclined downward in the direction away from the feed hopper 3, and a plurality of leaf spreading blocks 5 are fixed on the inner wall of the air separation box 1. The farther the leaf spreading block 5 is from one end of the feed hopper 3, the shorter the distance between its bottom and the inclined feeding plate 4, and the leaf spreading block 5 An exhaust fan 6 is installed on the side wall, and an exhaust duct 7 is installed above the exhaust fan 6; a screening mesh plate 8 is arranged in the screening box 2, a vibration motor 9 is installed below the screening mesh plate 8, an assisting plate 10 fixed to the inner wall of the screening box 2 is arranged above the screening mesh plate 8, and a buffer spring 11 is fixed between the two ends of the top of the screening mesh plate 8 and the bottom of the assisting plate 10; a broken leaf collecting hopper 15 fixed to the screening box 2 is arranged below the screening mesh plate 8, and a broken leaf recovery frame 16 is arranged below the screening box 2.
[0020] like Figure 1 and Figure 2 As shown, in this embodiment, a sweeping brush structure for cleaning the screening mesh plate 8 is further provided in the screening box 2, and the sweeping brush structure includes a servo motor 121 installed on the assisting plate 10, and the output end of the servo motor 121 is connected to a bidirectional ball screw 122, and the outer side of the bidirectional ball screw 122 is connected to a transverse mounting block 123, the transverse mounting block 123 is slidably connected to the assisting plate 10, and a slide groove for the transverse mounting block 123 to slide is provided on the assisting plate 10, the transverse mounting block 123 extends to the bottom of the assisting plate 10, and a soft brush 124 is pasted to the bottom of the transverse mounting block 123.
[0021] In this embodiment, a cleaning window (not shown in the figure) is hinged on the side wall of the screening box 2, and the inclined feed plate 4 can be pulled out by opening the cleaning window; a material receiving window (not shown in the figure) is hinged on the side wall of the screening box 2, and the tea leaves on the screening mesh plate 8 can be collected by opening the material receiving window, and the soft brush 124 can also be replaced through the material receiving window; an inclined plate support seat 13 is fixed in the air separation box 1, and the inclined feed plate 4 is arranged on the top of the inclined plate support seat 13, and a snap-in slide block 14 is fixed to the bottom of the inclined plate support seat 13, and a snap-in slide groove is correspondingly provided on the top of the inclined plate support seat 13.
[0022] The working principle of the utility model is as follows:
[0023] The feed hopper 3 is used to introduce the tea leaves into the air separation box 1. The tea leaves slide on the inclined feeding plate 4. Due to the presence of the leaf spreading blocks 5, the originally piled tea leaves are gradually separated and spread out, that is, the stacking height of the tea leaves on the inclined feeding plate 4 becomes lower. A plurality of leaf spreading blocks 5 are provided, and the farther away from the leaf spreading blocks 5 at one end of the feed hopper 3, the shorter the distance between the bottom of the leaf spreading blocks and the inclined feeding plate 4. Multiple spreading and gradual separation are performed to avoid direct too low spreading that may cause the tea leaves to be stuck. Multiple air separations are performed through multiple exhaust fans 6, and the exhaust fans 6 generate negative pressure to draw away the tea leaves together with the air, remove impurities and light tea leaves, further improve the air separation effect, and achieve preliminary separation and arrangement.
[0024] A screening mesh plate 8 is provided in the screening box 2 for separating tea leaves of different particle sizes. Smaller tea leaves fall into the tea leaves collecting hopper 15 below through the pores of the screening mesh plate 8; an assisting plate 10 fixed to the inner wall of the screening box 2 is provided above the screening mesh plate 8, and a buffer spring 11 is fixed between the two ends of the top of the screening mesh plate 8 and the bottom of the assisting plate 10; it helps maintain the smooth movement of the screening mesh plate 8 and reduces the impact of vibration.
[0025] After the air selection and screening are completed, the inclined feeding plate 4 can be easily extracted for cleaning by opening the cleaning window. The tea leaves on the screening mesh plate 8 can be collected or the soft brush 124 can be replaced by opening the material receiving window.
[0026] In order to prevent broken leaves from clogging the mesh holes of the screening mesh plate 8, the servo motor 121 can be started to drive the bidirectional ball screw 122 to rotate, thereby driving the transverse mounting block 123 to move along the axial direction of the bidirectional ball screw 122, so that the soft brush 124 brushes the screening mesh plate 8 to remove the broken leaves remaining in the screening mesh plate 8 and clogging the mesh holes.
[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A screening and air separation device for deep processing and cleaning of tea leaves, comprising an air separation box (1) and a screening box (2), wherein the side walls of the air separation box (1) and the screening box (2) are provided with a connecting groove connecting the air separation box (1) and the screening box (2); characterized in that: A feed hopper (3) is installed at one end of the top of the air separation box (1), and an inclined feeding plate (4) is arranged inside the air separation box (1). The top of the inclined feeding plate (4) is inclined downward in a direction away from the feed hopper (3). A plurality of leaf spreading blocks (5) are fixed to the inner wall of the air separation box (1). The farther the leaf spreading block (5) is from one end of the feed hopper (3), the shorter the distance between the bottom of the leaf spreading block (5) and the inclined feeding plate (4) is. An exhaust fan (6) is installed on the side wall of the leaf spreading block (5). An exhaust duct (7) is installed above the machine (6); a screening mesh plate (8) is arranged in the screening box (2), a vibration motor (9) is installed below the screening mesh plate (8), an assisting plate (10) fixed to the inner wall of the screening box (2) is arranged above the screening mesh plate (8), buffer springs (11) are fixed between the two ends of the top of the screening mesh plate (8) and the bottom of the assisting plate (10), and a sweeping brush structure for cleaning the screening mesh plate (8) is also arranged in the screening box (2).
2. A screening and air separation device for deep processing and cleaning of tea leaves according to claim 1, characterized in that: The sweeping brush structure comprises a servo motor (121) mounted on the assisting plate (10); the output end of the servo motor (121) is connected to a bidirectional ball screw (122); the outer side of the bidirectional ball screw (122) is connected to a transverse mounting block (123); the transverse mounting block (123) is slidably connected to the assisting plate (10); a slide groove for the transverse mounting block (123) to slide is provided on the assisting plate (10); the transverse mounting block (123) extends to the bottom of the assisting plate (10); and a soft brush (124) is attached to the bottom of the transverse mounting block (123).
3. A screening and air separation device for deep processing and cleaning of tea leaves according to claim 1, characterized in that: The side wall of the screening box (2) is hinged with a cleaning window, and the inclined feeding plate (4) can be pulled out by opening the cleaning window; the side wall of the screening box (2) is hinged with a material collecting window, and the tea leaves on the screening mesh plate (8) can be collected by opening the material collecting window, and the soft brush (124) can also be replaced through the material collecting window.
4. A screening and air separation device for deep processing and cleaning of tea leaves according to claim 3, characterized in that: An inclined plate support seat (13) is fixed in the air separation box (1), an inclined feeding plate (4) is arranged on the top of the inclined plate support seat (13), a clamping slide block (14) is fixed on the bottom of the inclined plate support seat (13), and a clamping slide groove is correspondingly provided on the top of the inclined plate support seat (13).
5. The screening and air separation device for deep processing and cleaning of tea leaves according to claim 1, characterized in that: A broken leaf collecting hopper (15) fixed to the screening box (2) is arranged below the screening mesh plate (8), and a broken leaf recovery frame (16) is arranged below the screening box (2).