Black tea drying equipment using roller structure
Through the inclined rotating drum structure and spiral blade design, the problem of tea gathering at the bottom of the drum is solved, and the automated and thorough discharge of tea is realized, which improves the automation and safety of drying equipment.
Patent Information
- Application Number
- CN202521299938.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2035-06-24
AI Technical Summary
The side discharge ports of existing tumble dryers are fixed, which causes tea leaves to gather at the bottom of the drum, making it difficult to completely discharge, increasing the need for manual intervention and the risk of cross-contamination.
The tilted rotating drum structure is adopted, combined with spiral blades and dual drive components, to realize the automatic discharge of tea leaves, and completely discharge tea leaves through the diversion of spiral blades.
It realizes efficient and automated discharge of tea, reduces manual intervention, reduces labor intensity, and avoids residual affecting the quality of subsequent processing.
Smart Images
Figure CN223283368U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drying equipment, in particular to black tea drying equipment using a drum structure. Background Art
[0002] The rotation of the drum allows the tea leaves to be evenly dehydrated in the hot air, which can evenly penetrate the tea leaves layer, ensuring that each piece of tea can be fully heated, quickly and evenly removing moisture, and retaining the aroma, color and nutrients of the black tea to the greatest extent, thereby improving the quality of the black tea. It has a high degree of automation and reduces human intervention.
[0003] In the prior art, general drum dryers are only provided with a side discharge port, and the position of the discharge port is fixed. During the process of drying tea leaves, since the tea leaves themselves have a certain weight, when the drum rotates, the tea leaves will gradually gather to the bottom of the drum due to gravity. Especially for wet tea with a high water content, its texture is relatively soft and sticky, and it is more likely to form accumulation at the bottom of the drum. Therefore, if you want to discharge it thoroughly during discharge, manual intervention is required, which increases the labor intensity. If it is not thoroughly cleaned and discharged, it will be put into use again. The residual tea leaves may be mixed into the new batch of tea, increasing the risk of cross contamination and adversely affecting the quality and safety of the tea. Therefore, it is necessary to improve a black tea drying equipment using a drum structure to solve the above problems. Utility Model Content
[0004] In order to overcome the problem that the side discharge port is difficult to completely discharge the dried black tea, resulting in residues that affect subsequent processing.
[0005] The technical solution of the utility model is: a black tea drying device using a drum structure, including a support frame, a heating cylinder rotatably connected to the support frame, a drum rotatably connected to the inside of the heating cylinder, a spiral blade fixedly connected to the inside of the drum, a first driving component arranged on the heating cylinder, a positioning component arranged on the support frame and the heating cylinder, and a second driving component arranged on the support frame, the second driving component drives the heating cylinder together with the drum and the spiral blade to tilt to a preset angle, and at the same time, the first driving component drives the drum together with the spiral blade to rotate synchronously inside the heating cylinder to discharge tea leaves.
[0006] Preferably, through holes are evenly opened on the drum, both ends of the drum are tapered, and the spiral blades are arranged on the inner wall of the drum and fit the inner wall.
[0007] Preferably, the first drive assembly includes a first motor fixedly connected to the heating cylinder, a first gear fixedly connected to the output end of the first motor, a second gear meshed with the first gear, and the second gear fixedly connected to the roller. The first motor drives the roller to rotate by meshing with the first gear and the second gear.
[0008] Preferably, the second drive assembly includes a positioning seat fixedly connected to the support frame, a second motor fixedly connected to the support frame, a third gear fixedly connected to the output end of the second motor, a fourth gear engaged with the third gear, a worm fixedly connected to the fourth gear, a worm gear engaged with the worm gear, the worm gear is fixedly connected to the heating tube, and the worm gear is rotatably connected to the positioning seat.
[0009] Preferably, the positioning seat is provided with a limiting hole at a corresponding position of the worm, and the worm rotates inside the limiting hole.
[0010] Preferably, the positioning assembly includes a first positioning rod fixedly connected to the heating tube, a second positioning rod fixedly connected to the heating tube, a first support rod fixedly connected to the support frame, and a second support rod fixedly connected to the support frame.
[0011] Preferably, the first positioning rod is in contact with the first push rod, and the second push rod is in contact with the second positioning rod.
[0012] The beneficial effects of the utility model are as follows: the drum rotates and tilts to cooperate with the spiral blades, so that the dried tea leaves can be discharged quickly, and the tea leaves can be discharged thoroughly through the guidance of the spiral blades. Not only is the efficiency high, but the discharge is also more sufficient and thorough, without the need for manual intervention, which greatly saves labor costs and has a higher degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural schematic diagram of an embodiment of the black tea drying equipment using a drum structure of the present invention;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the drum of the utility model;
[0015] Figure 3 This is a schematic diagram of the heating tube flip structure of the utility model;
[0016] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.
[0017] Explanation of the accompanying drawings: 1. Support frame; 21. Heating cylinder; 22. Drum; 23. Spiral blade; 31. First motor; 32. First gear; 33. Second gear; 41. First positioning rod; 42. Second positioning rod; 43. First push rod; 44. Second push rod; 51. Positioning seat; 52. Second motor; 53. Third gear; 54. Fourth gear; 55. Worm; 56. Worm wheel. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] See also Figures 1-4 The utility model provides an embodiment: a black tea drying device using a drum structure, comprising a support frame 1, a heating cylinder 21 rotatably connected to the support frame 1, a drum 22 rotatably connected to the inside of the heating cylinder 21, a spiral blade 23 fixedly connected to the inside of the drum 22, a first driving component arranged on the heating cylinder 21, a positioning component arranged on the support frame 1 and the heating cylinder 21, and a second driving component arranged on the support frame 1. The second driving component drives the heating cylinder 21 together with the drum 22 and the spiral blade 23 to tilt to a preset angle. At the same time, the first driving component drives the drum 22 together with the spiral blade 23 to rotate synchronously inside the heating cylinder 21 to discharge tea leaves, add tea leaves to the inside of the drum 22, and drive the drum 22 to rotate by the first driving component, so that the tea leaves inside the drum 22 are dried. The tea leaves are heated by the heating cylinder 21 while being tumbled. A heating element is provided inside the heating cylinder 21. The heating element, such as a resistance wire or an electric heating wire, heats and dries the tea leaves to evaporate moisture. After drying is completed, the heating cylinder 21 and the drum 22 are rotated and tilted by the second driving component, and the reverse drive of the first driving component is coordinated to flip the drum 22. The tilting and rotation of the drum 22 are coordinated with the spiral blades 23 to guide the flow, so that the tea leaves are discharged. Through holes are evenly opened on the drum 22. The two ends of the drum 22 are tapered. The spiral blades 23 are arranged on the inner wall of the drum 22 and fit the inner wall. Heat is transferred to the tea leaves faster through the through holes. The through holes are small and close-fitting, so that the tea leaves will not pass through the through holes. The angles of the tapers at both ends of the drum 22 can be determined according to production and the amount of tea leaves that can be dried at one time.
[0020] See also Figure 1 、 Figure 3 In this embodiment, the first driving assembly includes a first motor 31 fixedly connected to the heating cylinder 21, a first gear 32 fixedly connected to the output end of the first motor 31, and a second gear 33 meshed with the first gear 32. The second gear 33 is fixedly connected to the drum 22. The first motor 31 drives the drum 22 to rotate by meshing with the first gear 32 and the second gear 33. The drum 22 rolls so that the tea leaves inside can roll with it, so that the tea leaves inside can also be heated evenly, avoiding the problem of tea leaves accumulated inside being difficult to heat. The uniform heating can effectively improve the drying efficiency.
[0021] See also Figure 4In this embodiment, the second driving assembly includes a positioning seat 51 fixedly connected to the support frame 1, a second motor 52 fixedly connected to the support frame 1, a third gear 53 fixedly connected to the output end of the second motor 52, a fourth gear 54 meshed with the third gear 53, a worm 55 fixedly connected to the fourth gear 54, and a worm wheel 56 meshed with the worm 55. The worm wheel 56 is fixedly connected to the heating cylinder 21, and the worm 55 is rotatably connected to the positioning seat 51 to control the flipping angle of the drum 22. The self-locking performance between the worm wheel 56 and the worm 55 can reduce the load of the second motor 52, avoid damage to the second motor 52 caused by a large load, ensure the service life, and make the drum 22 flip and rotate in coordination, so that the tea leaves are discharged faster and more thoroughly without excessive human intervention. 51 opens a limiting hole at the corresponding position of the worm 55, and the worm 55 rotates inside the limiting hole, and the worm 55 rotates smoothly through the limiting hole to avoid a chain reaction caused by the rotation of the worm 55 and avoid structural damage. The self-locking between the worm wheel 56 and the worm 55 is simply that the rotation of the worm 55 can drive the worm wheel 56 to rotate synchronously, but the worm wheel 56 cannot drive the worm 55 to rotate, so that when the worm 55 does not rotate, the worm wheel 56 cannot rotate. It is a one-way transmission characteristic. Due to the existence of self-locking, this reverse torque cannot drive the worm 55 to rotate, thereby automatically locking the load to prevent it from reversing due to gravity or external force. No additional brake is required, so that when the heating cylinder 21 is tilted to discharge, the heating cylinder 21 is prevented from reversing due to gravity, and the reversal force directly acts on the second motor 52.
[0022] See also Figure 4 In this embodiment, the positioning assembly includes a first positioning rod 41 fixedly connected to the heating tube 21, a second positioning rod 42 fixedly connected to the heating tube 21, a first push rod 43 fixedly connected to the support frame 1, and a second push rod 44 fixedly connected to the support frame 1. The first positioning rod 41 and the second positioning rod 42 are in contact with the first push rod 43 and the second push rod 44 respectively, so that the rotation angle of the heating tube 21 is limited to prevent the heating tube 21 from rotating too much. The first positioning rod 41 is in contact with the first push rod 43, and the second push rod 44 is in contact with the second positioning rod 42. The rotation angle is fixed by contact and the rotation angle is limited, thereby ensuring the stability of the heating tube 21 during operation.
[0023] When working, tea leaves are added to the interior of the drum 22 and heated by the heating tube 21, the first motor 31 drives the first gear 32, the first gear 32 drives the second gear 33, and the second gear 33 drives the drum 22, so that the drum 22 rotates inside the heating tube 21. The rotation of the drum 22 causes the tea leaves to tumble inside the drum 22. After drying is completed, the second motor 52 drives the third gear 53, the third gear 53 drives the fourth gear 54, the fourth gear 54 drives the worm 55, the worm 55 drives the worm gear 56, and the worm gear 56 drives the heating tube 21, so that the heating tube 21 turns over. When the first positioning rod 41 contacts the first push rod 43, the second motor 52 stops driving. At this time, the heating tube 21 and the drum 22 tilt, and then the drive output end of the first motor 31 is reversed, thereby reversing the drum 22. The reversal of the drum 22 cooperates with the spiral blade 23 to quickly discharge the tea leaves. After discharge is completed, the second motor 52 is reversed to make the second positioning rod 42 contact the second push rod 44.
[0024] Through the above steps, the drum 22 rotates and tilts to cooperate with the spiral blades 23, so that the dried tea leaves can be discharged quickly, and the tea leaves can be completely discharged through the guidance of the spiral blades 23, so as to solve the problem that it is difficult to completely discharge the dried black tea from the side discharge port, resulting in residues that affect subsequent processing.
Claims
1. A black tea drying device using a drum structure, comprising a support frame (1), characterized in that: The invention also includes a heating cylinder (21) rotatably connected to the support frame (1), a roller (22) rotatably connected inside the heating cylinder (21), a spiral blade (23) fixedly connected inside the roller (22), a first driving component arranged on the heating cylinder (21), a positioning component arranged on the support frame (1) and the heating cylinder (21), and a second driving component arranged on the support frame (1), wherein the second driving component drives the heating cylinder (21) together with the roller (22) and the spiral blade (23) to tilt to a preset angle, and at the same time, the first driving component drives the roller (22) together with the spiral blade (23) to rotate synchronously inside the heating cylinder (21) to discharge tea leaves.
2. The black tea drying equipment using a drum structure according to claim 1, characterized in that: Through holes are evenly formed on the roller (22), and both ends of the roller (22) are tapered. The spiral blades (23) are arranged on the inner wall of the roller (22) and fit the inner wall.
3. The black tea drying equipment using a drum structure according to claim 1, characterized in that: The first driving assembly comprises a first motor (31) fixedly connected to the heating cylinder (21), a first gear (32) fixedly connected to the output end of the first motor (31), and a second gear (33) meshed with the first gear (32). The second gear (33) is fixedly connected to the roller (22). The first motor (31) drives the roller (22) to rotate by meshing with the first gear (32) and the second gear (33).
4. The black tea drying equipment using a drum structure according to claim 1, characterized in that: The second driving assembly includes a positioning seat (51) fixedly connected to the support frame (1), a second motor (52) fixedly connected to the support frame (1), a third gear (53) fixedly connected to the output end of the second motor (52), a fourth gear (54) meshed with the third gear (53), a worm (55) fixedly connected to the fourth gear (54), and a worm wheel (56) meshed with the worm wheel (55), wherein the worm wheel (56) is fixedly connected to the heating cylinder (21), and the worm wheel (55) is rotatably connected to the positioning seat (51).
5. The black tea drying equipment using a drum structure according to claim 4, characterized in that: The positioning seat (51) is provided with a limiting hole at a corresponding position of the worm (55), and the worm (55) rotates inside the limiting hole.
6. The black tea drying equipment using a drum structure according to claim 1, characterized in that: The positioning assembly comprises a first positioning rod (41) fixedly connected to the heating tube (21), a second positioning rod (42) fixedly connected to the heating tube (21), a first support rod (43) fixedly connected to the support frame (1), and a second support rod (44) fixedly connected to the support frame (1).
7. The black tea drying equipment using a drum structure according to claim 6, characterized in that: The first positioning rod (41) contacts the first push rod (43), and the second push rod (44) contacts the second positioning rod (42).