Tea leaf fine processing and stalk sorting device

Abstract

The utility model provides a tea fine processing stalk sorting device which comprises a shell, a feeding groove is formed in the top of the shell, a first air blowing mechanism is arranged on the outer side of the shell, an air outlet of the first air blowing mechanism penetrates through the shell and is located below the feeding groove, and a secondary stalk sorting structure right opposite to the air outlet of the first air blowing mechanism is further arranged in the shell. The middle partition plate and the barrier plate are arranged in a shell in an up-and-down mode, and coincident sections with the same height are arranged on the middle partition plate and the barrier plate. The secondary stalk sorting structure is arranged in the shell, the first air blowing mechanism and the second air blowing mechanism which are communicated with the secondary stalk sorting structure are arranged, two winnowing spaces can be separated in the shell through the secondary stalk sorting structure, meanwhile, secondary winnowing of tea leaves is achieved in cooperation with the first air blowing mechanism and the second air blowing mechanism, and therefore the winnowing precision is effectively improved; and compared with single winnowing, the error-tolerant rate is effectively increased.

Description

Technical Field

[0001] The utility model relates to the field of tea processing, in particular to a tea stem picking device for fine processing. Background Art

[0002] Tea stem removal refers to the process of separating the stems from the tea leaves during processing. This step is intended to improve the quality of the tea, as the stems and leaves ferment at different rates and are generally less desirable than the leaves. In traditional tea processing, stem removal can be done manually, or mechanical equipment can be used to automate the process.

[0003] Currently, Chinese patent CN220195574U discloses a tea processing and stem picking device, comprising a first housing with a fan mounted on its side wall and an electric heating grid plate, a baffle vertically provided on the inner wall of the bottom end of the first housing, a ventilation frame embedded in the other side wall of the first housing, a roller rotatably connected to the center of the ventilation frame, a plurality of partitions provided on the outer wall of the roller, and a rectangular groove open to the outside at the top of the first housing; the device also includes a second housing located above the first housing, a conveyor belt for conveying tea leaves provided at the center of the second housing, and a height-adjustable limit plate provided above the conveyor belt for limiting the thickness of the conveyed tea leaves. The utility model conveys tea leaves via a conveyor belt, and then uses a height-adjustable limit plate to regulate the thickness of the tea leaves conveyed at the top of the conveyor belt, thereby achieving uniform transportation of the tea leaves, reducing the difficulty of wind separation and stem picking, and thereby improving the efficiency and quality of tea stem picking.

[0004] However, in actual use, the device completes the tea stem picking work through only a single air separation, which has strict requirements on the wind speed and is prone to missed detection or over-picking, making it inconvenient to complete the tea stem picking work with high precision. Therefore, a tea stem picking device for fine processing is proposed to solve the above problem. Utility Model Content

[0005] The main purpose of the utility model is to provide a tea stem picking device for fine processing, which solves the problem that a single wind selection has strict requirements on wind speed, is prone to missed detection or over-picking, and is not convenient for completing the stem picking work with high precision.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a tea stem picking device for fine processing, comprising a shell, a feed trough is provided on the top of the shell, a first blowing mechanism is provided on the outside of the shell, the air outlet of the first blowing mechanism passes through the shell and is located below the feed trough, and a secondary stem picking structure facing the air outlet of the first blowing mechanism is also provided in the shell, which includes a middle partition and a blocking plate arranged in the shell, the middle partition and the blocking plate are arranged up and down, and have overlapping sections at the same height, a gap is provided between the overlapping sections of the middle partition and the blocking plate for the tea leaves after the first stem picking to pass through, the top of the middle partition is lower than the height of the air outlet of the first blowing mechanism, the side of the shell is also provided with an air outlet and a second blowing mechanism passing through the middle partition, the air outlet of the second blowing mechanism is facing the blocking plate and is located below it, a partition plate is provided on the inner bottom wall of the shell, and the partition plate is located directly below or behind the blocking plate.

[0007] In a preferred embodiment, the first blowing mechanism includes a first fan, a first air outlet pipe is provided at the air outlet end of the first fan, an air outlet at the other end of the first air outlet pipe passes through the shell and extends into the interior thereof, and is located below the feed trough.

[0008] In a preferred embodiment, the second blowing mechanism includes a second fan, and a second air outlet pipe is provided at the air outlet end of the second fan. The air outlet at the other end of the second air outlet pipe passes through the shell and the middle partition and faces the blocking plate, and is located below the blocking plate.

[0009] In the preferred embodiment, the secondary stem picking structure also includes an inclined baffle arranged on the back of the middle partition, the inclined baffle is connected to the top end of the middle partition, and the second air outlet duct is located in the gap between the two.

[0010] In a preferred embodiment, two discharge ports are provided on the side of the shell, which are located on both sides of the partition plate, namely the tea stem discharge port and the leaf discharge port.

[0011] In a preferred embodiment, a guide slope inclined toward the tea stem discharge port and the leaf discharge port is provided on the inner bottom wall of the shell.

[0012] In a preferred embodiment, the feed trough is bucket-shaped, and an electric heating mesh plate is provided on its inclined surface.

[0013] In a preferred embodiment, a breaking up mechanism is further provided in the shell and is located between the feed trough and the air outlet of the first blowing mechanism. The breaking up mechanism includes a receiving mechanism and a shaking mechanism located below the receiving mechanism.

[0014] In the preferred embodiment, the receiving mechanism includes a receiving groove with an open front end, and the two sides of the front end of the receiving groove are rotatably connected to the inner wall of the shell through a rotating shaft. Rotation limit rods are provided on both sides of the rear end of the receiving groove, and a limit groove corresponding to the rotation limit rod is provided on the inner wall surface of the shell, and a pull rod is provided, and a reset spring is installed between the pull rod and the rotation limit rod.

[0015] In the preferred embodiment, the shaking mechanism includes a rotating shaft rotatably arranged in the shell and located below the receiving groove. The outside of the rotating shaft is provided with a cam that can interfere with the receiving groove. A driving motor is provided on the outside of the shell, and the output shaft of the driving motor is transmission-connected to one end of the rotating shaft.

[0016] The utility model provides a tea leaf finishing and stem picking device, which arranges a secondary stem picking structure in a shell body and is equipped with a first air blowing mechanism and a second air blowing mechanism connected thereto. The secondary stem picking structure can be used to isolate two air separation spaces in the shell body, and at the same time cooperate with the first air blowing mechanism and the second air blowing mechanism to realize secondary air separation of the tea leaves, thereby effectively improving the air separation accuracy and effectively improving the fault tolerance rate compared with single air separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is the overall structural diagram of the utility model;

[0019] Figure 2 This is a half-section structural diagram of the utility model;

[0020] Figure 3 It is a half-section diagram of part of the structure of the utility model;

[0021] Figure 4 This utility model Figure 1 Another perspective structure diagram;

[0022] Figure 5 This is an exploded structural diagram of the utility model's breaking mechanism;

[0023] In the figure: shell 1; feed trough 2; breaking up mechanism 3; receiving mechanism 31; receiving groove 310; rotating shaft 311; rotation limit rod 312; limiting groove 313; pull rod 314; reset spring 315; shaking mechanism 32; rotating shaft 320; cam 321; driving motor 322; first blowing mechanism 4; first fan 401; first air outlet 402; secondary stem picking structure 5; inclined baffle 501; middle partition 502; blocking plate 503; second blowing mechanism 6; second fan 601; second air outlet 602; partition plate 7; blade discharge port 8; tea stem discharge port 9; guide slope 10. DETAILED DESCRIPTION

[0024] like Figure 1-5As shown, a tea leaf finishing and stem picking device comprises a shell 1, a feed trough 2 is provided on the top of the shell 1, a first blowing mechanism 4 is provided on the outside of the shell 1, and an air outlet of the first blowing mechanism 4 passes through the shell 1 and is located below the feed trough 2. When the tea leaves that need to be picked for stems enter the shell 1 from the feed trough 2, the air blown out by the first blowing mechanism 4 below it is used to perform the first stem picking work on the tea leaves, and this stem picking is a rough stem picking process.

[0025] The shell 1 is also provided with a secondary stem picking structure 5 facing the air outlet of the first blowing mechanism 4, so that the tea leaves that have completed the rough stem picking process are blown into the secondary stem picking structure 5 and undergo a second precision stem picking process. The structure specifically includes a middle partition 502 and a blocking plate 503 fixed in the shell 1. The middle partition 502 and the blocking plate 503 are arranged up and down and have overlapping sections at the same height. A gap is provided between the overlapping sections of the middle partition 502 and the blocking plate 503 for the tea leaves that have passed through the first stem picking. The top end of the middle partition 502 is lower than the height of the air outlet of the first blowing mechanism 4, so that the tea leaves that have completed the first stem picking work fall into the gap between it and the middle partition 502 under the blocking action of the blocking plate 503.

[0026] The side of the shell 1 is also provided with an air outlet and a second blowing mechanism 6 that passes through the middle partition 502. The air outlet of the second blowing mechanism 6 is facing the blocking plate 503 and is located below it. The wind blown by the second blowing mechanism 6 can be used to carry out secondary stem picking of tea leaves that fall between the middle partition 502 and the blocking plate 503, thereby completing the precision stem picking process.

[0027] A partition plate 7 is fixedly provided on the inner bottom wall of the shell 1 to separate the tea leaves that have completed the stem picking process from the tea stems. The partition plate 7 is located directly below or behind the blocking plate 503.

[0028] It should be noted that the feed chute 2 is located on one side of the top of the shell 1, so as to reserve space for the secondary stem picking structure 5 in the shell 1.

[0029] In the preferred embodiment, the first blowing mechanism 4 includes a first fan 401, and a first air outlet pipe 402 is provided at the air outlet end of the first fan 401. The air outlet at the other end of the first air outlet pipe 402 passes through the shell 1 and extends into the interior thereof, and is located below the feed trough 2, so that the first fan 401 is used to generate wind for the first air selection, and the wind is transported to the shell 1 through the first air outlet pipe 402.

[0030] In the preferred embodiment, the second blowing mechanism 6 includes a second fan 601, and a second air outlet pipe 602 is provided at the air outlet end of the second fan 601. The air outlet at the other end of the second air outlet pipe 602 passes through the shell 1 and the middle partition 502 and faces the blocking plate 503, and is located below the blocking plate 503, so that the second fan 601 is used to generate wind for the second air selection, and the wind is transported to the secondary stem picking structure 5 through the second air outlet pipe 602.

[0031] This design can achieve refined tea stem picking by setting two air inlet volumes of different sizes, thereby improving the efficiency and accuracy of tea stem picking.

[0032] In the preferred embodiment, the secondary stem picking structure 5 also includes an inclined baffle 501 fixed on the back of the middle partition 502. The inclined baffle 501 is connected to the top of the middle partition 502, and the second air outlet pipe 602 is located in the gap between the two. The inclined baffle 501 can guide the tea stems during the first stem picking and prevent the tea stems from falling onto the second air outlet pipe 602.

[0033] In a preferred embodiment, the side of the shell 1 is provided with two discharge ports, which are located on both sides of the partition plate 7, namely the tea stem discharge port 9 and the leaf discharge port 8.

[0034] In addition, a guide slope 10 inclined toward the tea stem discharge port 9 and the leaf discharge port 8 is provided on the inner bottom wall of the shell 1, thereby facilitating the tea stems and leaves to be discharged from the corresponding tea stem discharge port 9 and leaf discharge port 8 respectively.

[0035] In the preferred embodiment, the feed trough 2 is bucket-shaped, and an electric heating mesh plate 201 is provided on its inclined surface, so that the feed trough 2 can be kept at a certain temperature through the electric heating mesh plate 201, thereby drying the wet tea leaves and avoiding large-area adhesion, which affects the air selection accuracy.

[0036] In addition, the shell 1 is also provided with a breaking up mechanism 3 located between the feed trough 2 and the air outlet of the first blowing mechanism 4. The breaking up mechanism 3 includes a receiving mechanism 31 and a shaking mechanism 32 located below it. The tea leaves entering from the feed trough 2 can be broken up by the breaking up mechanism 3, and the feeding speed during air selection can be controlled at the same time, thereby further improving the wind accuracy.

[0037] In the preferred embodiment, the receiving mechanism 31 includes a receiving groove 310 with an open front end, and its top is also open. The two sides of the front end of the receiving groove 310 are rotatably connected to the inner wall of the shell 1 through a rotating shaft 311, and a rotation limit rod 312 is fixed on both sides of the rear end of the receiving groove 310. A limit groove 313 corresponding to the rotation limit rod 312 is provided on the inner wall surface of the shell 1, and a pull rod 314 is provided. A reset spring 315 is installed between the pull rod 314 and the rotation limit rod 312 to facilitate the receiving groove 310 to rotate around the rotating shaft 311. The rotation limit rod 312 and the limit groove 313 can play a limiting role, and the reset spring 315 can reset it.

[0038] In the preferred embodiment, the shaking mechanism 32 includes a rotating shaft 320 rotatably arranged in the shell 1 and located below the receiving groove 310. The rotating shaft 320 is rotatably arranged in the shell 1 through a bearing. The external fixed sleeve of the rotating shaft 320 is provided with a cam 321 that can interfere with the receiving groove 310. A driving motor 322 is provided on the outside of the shell 1, and the output shaft of the driving motor 322 is transmission-connected to one end of the rotating shaft 320.

[0039] With such a design, the rotating shaft 320 can be driven to rotate by the power of the driving motor 322, thereby driving the cam 321 outside it to rotate. By utilizing the interference relationship between the protruding part of the cam 321 and the bottom of the receiving groove 310, the receiving groove 310 can be rotated around the rotating shaft 311, thereby breaking up the tea leaves and causing them to fall from the front opening and enter and exit the first air separation.

[0040] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A tea stem picking device for fine processing, characterized by: The invention comprises a shell (1), a feed trough (2) is provided on the top of the shell (1), a first blower mechanism (4) is provided on the outside of the shell (1), an air outlet of the first blower mechanism (4) passes through the shell (1) and is located below the feed trough (2), and a secondary stem picking structure (5) is further provided in the shell (1) facing the air outlet of the first blower mechanism (4), which comprises a middle partition (502) and a blocking plate (503) provided in the shell (1), the middle partition (502) and the blocking plate (503) being arranged up and down and having an overlapping section at the same height, and ... A gap is provided between the overlapping section of the middle partition (502) and the blocking plate (503) for the tea leaves to pass through after the first stem picking. The top of the middle partition (502) is lower than the height of the air outlet of the first blowing mechanism (4). The side of the shell (1) is also provided with an air outlet and a second blowing mechanism (6) passing through the middle partition (502). The air outlet of the second blowing mechanism (6) faces the blocking plate (503) and is located below it. A partition plate (7) is provided on the inner bottom wall of the shell (1). The partition plate (7) is located directly below or behind the blocking plate (503).

2. The tea stem picking device according to claim 1, characterized in that: The first air blowing mechanism (4) comprises a first fan (401), an air outlet end of the first fan (401) is provided with a first air outlet pipe (402), an air outlet at the other end of the first air outlet pipe (402) passes through the housing (1) and extends into the interior thereof, and is located below the feed trough (2).

3. The tea stem picking device according to claim 2, characterized in that: The second air blowing mechanism (6) comprises a second air blower (601), the air outlet end of the second air blower (601) is provided with a second air outlet pipe (602), the air outlet at the other end of the second air outlet pipe (602) passes through the housing (1) and the middle partition plate (502), faces the blocking plate (503), and is located below the blocking plate (503).

4. The tea stem picking device according to claim 3, characterized in that: The secondary stem picking structure (5) further comprises an inclined baffle (501) arranged on the back of the middle partition (502), the inclined baffle (501) being connected to the top end of the middle partition (502), and the second air outlet pipe (602) being located in the gap between the two.

5. The tea stem picking device according to claim 1, characterized in that: The side of the shell (1) is provided with two discharge ports, which are located on both sides of the partition plate (7), respectively, and are a tea stem discharge port (9) and a leaf discharge port (8).

6. The tea stem picking device according to claim 5, characterized in that: A guide slope (10) inclined toward the tea stem discharge port (9) and the leaf discharge port (8) is provided on the inner bottom wall of the shell (1).

7. The tea stem picking device according to claim 1, characterized in that: The feed trough (2) is bucket-shaped, and an electric heating mesh plate (201) is provided on its inclined surface.

8. The tea stem picking device according to claim 1 or 7, characterized in that: The housing (1) is also provided with a scattering mechanism (3) located between the feed trough (2) and the air outlet of the first blowing mechanism (4). The scattering mechanism (3) includes a receiving mechanism (31) and a shaking mechanism (32) located below the receiving mechanism.

9. The tea stem picking device according to claim 8, characterized in that: The receiving mechanism (31) includes a receiving groove (310) with an open front end, both sides of the front end of the receiving groove (310) are rotatably connected to the inner wall of the shell (1) through a rotating shaft (311), and both sides of the rear end of the receiving groove (310) are provided with a rotation limit rod (312), and a limit groove (313) corresponding to the rotation limit rod (312) is provided on the inner wall surface of the shell (1), and a pull rod (314) is provided, and a reset tension spring (315) is installed between the pull rod (314) and the rotation limit rod (312).

10. The tea stem picking device according to claim 9, characterized in that: The shaking mechanism (32) comprises a rotating shaft (320) rotatably arranged in the housing (1) and located below the receiving groove (310); a cam (321) is sleeved on the outside of the rotating shaft (320) and can interfere with the receiving groove (310); a driving motor (322) is arranged on the outside of the housing (1); and an output shaft of the driving motor (322) is transmission-connected to one end of the rotating shaft (320).

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