Tea stem separating device
By combining a conical screen cylinder with a vibration mechanism, the conical screen cylinder is driven to vibrate using eccentric protrusions and springs. Combined with a feeding mechanism to control the feeding, the problem of low efficiency in separating tea stems and tea leaves is solved, achieving a highly efficient and continuous separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JISHITANG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
Existing tea stem and tea leaf separation devices are inefficient when there is a large accumulation of tea stems and tea leaves, and simple vibration separation is not effective in separating tea stems and tea leaves.
The design combines a conical screen cylinder with a vibration mechanism. Through the cooperation of eccentric protrusions and springs, the conical screen cylinder vibrates up and down, and the feeding mechanism controls the tea leaves to achieve continuous separation.
It improves the efficiency of separating tea stems and tea leaves, prevents tea leaf accumulation, and ensures the continuity and efficiency of the separation process.
Smart Images

Figure CN224127781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tea stem separation device, belonging to the technical field of tea processing equipment. Background Technology
[0002] A tea stem separator is a fully automatic machine that separates tea stems from tea leaves and is an essential piece of equipment in the tea refining process.
[0003] Existing separation devices typically separate tea stems and leaves by pouring them onto a sieve plate and vibrating them. However, when there is a large amount of tea leaves piled up, simple vibration is not effective in separating them.
[0004] Therefore, this utility model proposes a new solution. Utility Model Content
[0005] The main purpose of this utility model is to solve the problem that existing separation devices, when separating tea stems and tea leaves, usually involve pouring them onto a sieve plate for vibration separation. When there is a large amount of tea leaves piled up, simple vibration is not effective in separating them. Therefore, this utility model provides a tea stem separation device.
[0006] The objective of this utility model can be achieved by adopting the following technical solution:
[0007] A tea stem separation device includes a base plate, with supports fixedly connected to both ends of the base plate. A separation box is installed on the top of the base plate. A conical sieve cylinder located inside the separation box is rotatably installed between the two supports. A vibration mechanism is installed inside the conical sieve cylinder. The vibration mechanism includes a rotating shaft fixedly installed in the middle of the conical sieve cylinder. Vibration blocks that slide up and down on the inner sides of the supports are rotatably installed on the outer walls of both ends of the rotating shaft. Springs are connected to the upper and lower ends of the vibration blocks. A first motor installed on the vibration blocks is fixedly connected to one end of the rotating shaft. A protrusion is connected to the outer wall of the middle part of the rotating shaft. A tea leaf plate connected to the separation box is provided below one end of the conical sieve cylinder. A tea stem box located below the conical sieve cylinder is provided in the middle of the separation box. A feeding mechanism is installed on the top of the separation box.
[0008] Preferably, the outer wall of the conical sieve cylinder is uniformly provided with a plurality of strip-shaped sieve holes.
[0009] Preferably, the middle part of the conical screen cylinder is fixedly connected to an intermediate tube by multiple connecting rods, and both ends of the intermediate tube are equipped with blocking plates, and the blocking plates are provided with first connecting holes.
[0010] Preferably, the vibrating block is located in the middle of the intermediate tube, and a second connecting hole corresponding to the first connecting hole is provided on the outer wall of the rotating shaft.
[0011] Preferably, a mounting groove is provided on one side of the bracket, and the vibrating block is mounted vertically inside the mounting groove.
[0012] Preferably, the front of the bracket is provided with a sliding groove that passes through the mounting groove, and the front and rear sides of the vibrating block are provided with screw holes, and the inner side of the screw holes is threaded with a sliding rod that is slidably connected to the sliding groove.
[0013] Preferably, the side of the vibrating block is provided with a rotating hole that is rotatably connected to the rotating shaft.
[0014] Preferably, the feeding mechanism includes a storage box installed on top of the separation box, and a tea hopper located at the bottom of one end of the storage box away from the tea board at the end of the conical screen cylinder. The bottom end of the tea hopper is connected to a feeding pipe extending to the inside of the conical screen cylinder.
[0015] Preferably, a second motor is provided on the outside of the storage box, and the output end of the second motor is connected to a conveying auger located inside the storage box.
[0016] Preferably, the bottom of the separation box is provided with a through groove that mates with the tea stem box, and handles are connected to both the front and rear sides of the tea stem box.
[0017] The beneficial technical effects of this utility model are as follows: According to the tea stem separation device of this utility model:
[0018] 1. With the setting of the vibration mechanism, the first motor drives the rotating shaft to rotate and simultaneously drives the conical screen cylinder to rotate, thereby tumbling the tea leaves and separating them. Since there is a protrusion eccentrically connected on the outer wall of the middle part of the rotating shaft, together with the setting of the vibration block and spring, the conical screen cylinder will vibrate up and down when the rotating shaft rotates, thereby improving the screening efficiency.
[0019] 2. Through the setting of the feeding mechanism, the second motor controls the conveying auger to transport tea leaves from the storage box into the tea hopper and through the feeding pipe into the conical screen cylinder. This can control the continuous feeding of tea leaves, thereby carrying out continuous separation work. At the same time, it can prevent too much tea leaves from entering at one time, which would cause accumulation and affect the separation efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;
[0021] Figure 2 This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;
[0022] Figure 3 This is a schematic diagram of the bracket connection according to a preferred embodiment of the present invention;
[0023] Figure 4 This is a schematic diagram of a conical sieve cylinder structure according to a preferred embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of a rotating shaft structure according to a preferred embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of a vibration block structure according to a preferred embodiment of the present invention.
[0026] In the diagram: 1. Base plate; 2. Support frame; 3. Separation box; 4. Conical sieve cylinder; 5. Rotating shaft; 6. Vibrating block; 7. Spring; 8. First motor; 9. Protrusion; 10. Tea leaf plate; 11. Tea stem box; 401. Sieve hole; 402. Intermediate tube; 403. Blocking plate; 404. First connecting hole; 501. Second connecting hole; 201. Mounting groove; 202. Sliding groove; 601. Screw hole; 602. Sliding rod; 603. Rotating hole; 12. Storage box; 13. Tea hopper; 14. Feeding pipe; 15. Second motor; 16. Conveying auger; 17. Through groove; 18. Handle. Detailed Implementation
[0027] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0028] like Figures 1-6 As shown, the tea stem separation device provided in this embodiment includes a base plate 1, with brackets 2 fixedly connected to both ends of the base plate 1. A separation box 3 is installed on the top of the base plate 1. A conical sieve cylinder 4 located inside the separation box 3 is rotatably installed between the two brackets 2. A vibration mechanism is installed inside the conical sieve cylinder 4. The vibration mechanism includes a rotating shaft 5 fixedly installed in the middle of the conical sieve cylinder 4. Vibration blocks 6, which slide up and down on the inner side of the brackets 2, are rotatably installed on the outer walls of both ends of the rotating shaft 5. Springs 7 are connected to both the upper and lower ends of the vibration blocks 6. A first motor 8 installed on the vibration blocks 6 is fixedly connected to one end of the rotating shaft 5. A protrusion 9 is connected to the outer wall of the middle part of the rotating shaft 5. A tea leaf plate 10 connected to the separation box 3 is provided below one end of the conical sieve cylinder 4. A tea stem box 11 located below the conical sieve cylinder 4 is provided in the middle of the separation box 3. A feeding mechanism is installed on the top of the separation box 3. With the vibration mechanism, the first motor 8 drives the rotating shaft 5 to rotate, which in turn drives the conical screen cylinder 4 to rotate synchronously, thereby tumbling the tea leaves and separating them. Since there is a protrusion 9 eccentrically connected to the outer wall of the middle part of the rotating shaft 5, together with the setting of the vibration block 6 and the spring 7, when the rotating shaft 5 rotates, it will drive the conical screen cylinder 4 to vibrate up and down, thereby improving the screening efficiency.
[0029] In this embodiment, as Figure 1 , Figure 2and Figure 3 As shown, the outer wall of the conical sieve cylinder 4 is uniformly provided with multiple strip-shaped sieve holes 401. The middle part of the conical sieve cylinder 4 is fixedly connected to a central tube 402 by multiple connecting rods. Both ends of the central tube 402 are equipped with blocking plates 403. The blocking plates 403 are provided with first connecting holes 404. The vibrating block 6 is located in the middle of the central tube 402. The outer wall of the rotating shaft 5 is provided with a second connecting hole 501 corresponding to the first connecting hole 404. The outer wall of the conical sieve cylinder 4 is uniformly provided with multiple strip-shaped sieve holes 401. The width of the sieve holes 401 is larger than the size of the tea stems and smaller than the size of the tea leaves. The tea stems can fall into the tea stem box 11 through the sieve holes 401, while the tea leaves cannot pass through and will roll into the tea leaf plate 10 at one end from the inside of the conical sieve cylinder 4. Through the setting of the blocking plates 403, the first connecting holes 404 and the second connecting holes 501, the conical sieve cylinder 4 and the rotating shaft 5 are connected by bolts, which facilitates maintenance.
[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a mounting groove 201 is provided on one side of the bracket 2, and the vibrating block 6 is movably mounted inside the mounting groove 201. A sliding groove 202 penetrating the mounting groove 201 is provided on the front of the bracket 2. Screw holes 601 are provided on both the front and rear sides of the vibrating block 6. A sliding rod 602 that is slidably connected to the sliding groove 202 is threaded onto the inner side of the screw hole 601. A rotating hole 603 that is rotatably connected to the rotating shaft 5 is provided on the side of the vibrating block 6. The sliding groove 202 and the sliding rod 602 limit the up-and-down vibration of the vibrating block 6. The screw holes 601 on both the front and rear sides of the vibrating block 6 and the screw rod 602 connected to one end of the sliding rod 602 that mates with the screw hole 601 facilitate the mounting and dismounting of the vibrating block 6.
[0031] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the feeding mechanism includes a storage box 12 installed on top of the separation box 3. At the bottom of one end of the storage box 12 is a tea hopper 13 located at the end of the conical screen cylinder 4 furthest from the tea leaf plate 10. The bottom end of the tea hopper 13 is connected to a discharge pipe 14 extending into the inner side of the conical screen cylinder 4. A second motor 15 is located on the outside of the storage box 12, and the output end of the second motor 15 is connected to a conveying auger 16 located inside the storage box 12. The second motor 15 controls the conveying auger 16 to feed tea leaves from the storage box 12 into the tea hopper 13 and through the discharge pipe 14 into the conical screen cylinder 4. This allows for continuous feeding of tea leaves, enabling continuous separation while preventing excessive tea leaves from accumulating and affecting separation efficiency.
[0032] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the bottom of the separation box 3 has a through groove 17 that mates with the tea stem box 11, and handles 18 are connected to both the front and rear sides of the tea stem box 11. The through groove 17 and handles 18 allow for easy pulling out and insertion of the tea stem box 11 from both sides, making operation convenient.
[0033] In this embodiment, as Figures 1-6 As shown, the working process of the tea stem separation device provided in this embodiment is as follows:
[0034] Step 1: In use, the second motor 15 controls the conveying auger 16 to convey tea leaves from the storage box 12 into the tea hopper 13 and through the feed pipe 14 into the conical screen cylinder 4;
[0035] Step 2: The first motor 8 drives the rotating shaft 5 to rotate, which in turn drives the conical screen cylinder 4 to rotate synchronously, thereby tumbling the tea leaves and separating them. Since there is a protrusion 9 eccentrically connected on the outer wall of the middle part of the rotating shaft 5, together with the setting of the vibrating block 6 and the spring 7, when the rotating shaft 5 rotates, it will drive the conical screen cylinder 4 to vibrate up and down, thereby improving the screening efficiency.
[0036] Step 3: The sieved tea stems can fall into the tea stem box 11 through the sieve holes 401, while the tea leaves cannot pass through and will roll from the inside of the conical sieve cylinder 4 onto the tea leaf plate 10 at one end.
[0037] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.
Claims
1. A tea stem separation device, comprising a bottom plate (1), both ends of the bottom plate (1) are fixedly connected with supports (2), characterized in that, A separation box (3) is installed on the top of the base plate (1). A conical sieve cylinder (4) located inside the separation box (3) is rotatably installed between the two supports (2). A vibration mechanism is installed inside the conical sieve cylinder (4). The vibration mechanism includes a rotating shaft (5) fixedly installed in the middle of the conical sieve cylinder (4). Vibration blocks (6) that slide up and down on the inner side of the supports (2) are rotatably installed on the outer walls of both ends of the rotating shaft (5). Springs (7) are connected to both ends of the vibration blocks (6). A first motor (8) installed on the vibration blocks (6) is fixedly connected to one end of the rotating shaft (5). A protrusion (9) is connected to the outer wall of the middle part of the rotating shaft (5). A tea board (10) connected to the separation box (3) is provided below one end of the conical sieve cylinder (4). A tea stem box (11) located below the conical sieve cylinder (4) is provided in the middle of the separation box (3). A feeding mechanism is installed on the top of the separation box (3).
2. A tea stem separating device according to claim 1, characterised in that The outer wall of the conical sieve cylinder (4) is uniformly provided with a plurality of strip-shaped sieve holes (401).
3. A tea stem separating device according to claim 1, characterized in that, The middle part of the conical screen cylinder (4) is fixedly connected to an intermediate tube (402) by multiple connecting rods. Both ends of the intermediate tube (402) are equipped with a blocking plate (403), and the blocking plate (403) is provided with a first connecting hole (404).
4. A tea stem separating apparatus according to claim 3, wherein The vibrating block (6) is located in the middle of the intermediate tube (402), and a second connecting hole (501) corresponding to the first connecting hole (404) is provided on the outer wall of the rotating shaft (5).
5. The device according to claim 1, wherein The bracket (2) has an installation groove (201) on one side, and the vibration block (6) is installed on the inner side of the installation groove (201) with vertical movement.
6. A tea stem separating apparatus according to claim 5, wherein The bracket (2) has a sliding groove (202) that passes through the mounting groove (201) on the front side. The vibrating block (6) has screw holes (601) on both the front and rear sides. The inner side of the screw hole (601) is threaded with a sliding rod (602) that is slidably connected to the sliding groove (202).
7. A tea stem separating apparatus according to claim 6, characterised in that The vibrating block (6) has a rotating hole (603) on its side that is rotatably connected to the rotating shaft (5).
8. The device according to claim 1, wherein The feeding mechanism includes a storage box (12) installed on the top of the separation box (3). At the bottom of one end of the storage box (12) is a tea hopper (13) located at the end of the conical screen cylinder (4) away from the tea board (10). The bottom end of the tea hopper (13) is connected to a feeding pipe (14) extending to the inside of the conical screen cylinder (4).
9. A tea stem separating apparatus according to claim 8, characterised in that, A second motor (15) is provided on the outside of the storage box (12), and the output end of the second motor (15) is connected to a conveying auger (16) located inside the storage box (12).
10. The device according to claim 1, wherein The bottom of the separation box (3) is provided with a through groove (17) that matches the tea stem box (11), and handles (18) are connected to both the front and rear sides of the tea stem box (11).