Tea leaf processing drying and fixing device
By introducing a combination structure of movable plate, disturbance rod and limiting plate into the drying and fixing device, the problem of uneven tea leaf turning is solved, and uniform drying and efficient fixing of tea leaves are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SHULAI AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-14
AI Technical Summary
In existing tea processing drying and fixing devices, the tea leaves are not turned over effectively, and they easily clump together, resulting in uneven drying.
A tea-turning assembly was designed, comprising a movable plate, a disturbance rod, a tension spring, and a limiting plate. The movable plate moves on the concave and convex structure of the limiting plate, causing the disturbance rod to reciprocate within the drying cylinder, dispersing the tea leaves. This is combined with an electric heating rod for heating and drying.
This method achieves uniform drying of tea leaves, prevents them from clumping together, and improves drying efficiency and quality.
Smart Images
Figure CN224498974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, and in particular to a drying and fixing device for tea processing. Background Technology
[0002] The main purpose of fixing is to destroy and deactivate the oxidase activity in fresh leaves through high temperature, inhibit the enzymatic oxidation of tea polyphenols and other substances in the fresh leaves, and prevent discoloration during the drying process; at the same time, it removes the grassy smell and promotes the formation of a good aroma.
[0003] Regarding drying and fixing devices for tea processing, a search revealed a drying-type oolong tea constant-temperature rapid fixing device with patent publication number CN221996688U. This device includes a base and a support plate, with the support plate fixedly connected to the upper left and right ends of the base. A fixing mechanism is connected to the upper end of the base, comprising a fixing unit and a disassembly unit. In operation, the oolong tea leaves to be fixed are first poured into the filter cylinder through a trough. Then, a sealing plate is slid to the inside of the trough, and a cylindrical threaded connection is made to the outer end of a threaded rod, fixing the sealing plate to the inside of the trough. Next, the motor and hot air blower are started. The motor's output shaft rotates, driving the drive gear, which in turn rotates the driven gear, causing the cylindrical rod and connecting rod to rotate together. This rotates the filter cylinder, continuously turning the oolong tea leaves. Simultaneously, hot air is sprayed upwards from the exhaust pipe onto the oolong tea leaves in the filter cylinder, thus drying and fixing the oolong tea leaves.
[0004] Based on the above search and in conjunction with existing technologies, it has been found that existing tea drying and fixing devices similar to those disclosed above only utilize the rotation of the filter cylinder to tumble the oolong tea leaves. This tumbling effect is poor, and the unobstructed tumbling of the tea leaves inside the filter cylinder easily leads to clumping, resulting in uneven drying. Therefore, a tea drying and fixing device is proposed to improve upon these problems. Utility Model Content
[0005] The purpose of this application is to provide a drying and fixing device for tea processing to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: a drying and blanching device for tea processing, comprising a support frame, a drying cylinder horizontally rotatably mounted inside the support frame, and a drive mechanism mounted on the side end of the support frame to drive the drying cylinder to rotate along its axis. The drying cylinder has inlet and outlet ports on its circumferential side, and cover plates are detachably mounted at the inlet and outlet ports.
[0007] The drying cylinder has multiple sliding holes evenly distributed on its circumference, and multiple comb-shaped tea-turning components evenly arranged on its circumference.
[0008] The tea-turning assembly includes a movable plate, disturbance rods, and a tension spring. The movable plate is located outside the drying cylinder, and the length direction of the movable plate is consistent with the axial direction of the drying cylinder. Multiple disturbance rods are fixed at equal intervals on the movable plate along the length direction of the movable plate, and multiple disturbance rods slide through the sliding holes one by one. The tension spring is fixed between the drying cylinder and the movable plate.
[0009] Limiting plates are fixed to the two inner ends of the support frame. The circumferential side of the limiting plate is set in a concave-convex shape, and the concave-convex circumferential side of the limiting plate is in contact with the movable plate.
[0010] It also includes a drying component.
[0011] As a further supplement to this solution, the drying assembly includes an electric heating rod, the axis of which coincides with the axis of the drying cylinder. Both ends of the electric heating rod are fixed to the support frame via connecting columns. The connecting column, which passes through the drying cylinder, is coaxially mounted with a bushing, which is fixed to the drying cylinder.
[0012] As a further supplement to this solution, the drive mechanism includes a drive motor, transmission gears, and a drive gear;
[0013] The drive motor is fixed to one side of the support frame. The drive gear is coaxially fixed to the output end of the drive motor. The transmission gear is coaxially fixed to the bushing and meshes with the drive gear.
[0014] As a further supplement to this solution, the circumferential side of the limiting plate is provided with recesses and protrusions at intervals. When the drying cylinder rotates, the movable plate moves in contact with the recesses and protrusions.
[0015] As a further supplement to this solution, when the movable plate contacts the recessed part, the length of the disturbance rod extending into the inside of the drying cylinder is the longest. When the movable plate contacts the top of the protrusion, the end of the disturbance rod away from the movable plate is flush with the inner wall of the drying cylinder.
[0016] As a further supplement to this solution, rollers are rotatably mounted at both ends of the movable plate, and the rollers contact the recessed and protruding parts.
[0017] In summary, the technical effects and advantages of this utility model are as follows:
[0018] 1. In this utility model, through the coordinated arrangement of the movable plate, the disturbance rod, the tension spring and the limiting plate, the movable plate moves continuously against the concave and convex parts, while the disturbance rod moves back and forth along the radius of the drying cylinder to disturb and disperse the tea leaves inside the drying cylinder.
[0019] 2. In this utility model, when the movable plate moves to the top of the protrusion, the disturbance rod moves outward to the end away from the movable plate and is flush with the inner wall of the drying cylinder. At this time, the tea leaves will not be obstructed by any structure other than the drying cylinder, and can be smoothly discharged from the drying cylinder. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure in this embodiment;
[0022] Figure 2 This is a schematic diagram of the cross-sectional structure in the outward displacement state of the disturbance rod in this embodiment;
[0023] Figure 3 This is a schematic diagram of the cross-sectional structure under the inward displacement state of the disturbance rod in this embodiment;
[0024] Figure 4 This is a schematic diagram of the structure of the drying cylinder in this embodiment;
[0025] Figure 5 This is a schematic diagram of the limiting plate in this embodiment.
[0026] In the diagram: 1. Support frame; 2. Drying cylinder; 201. Sliding hole; 3. Drive motor; 4. Movable plate; 5. Disturbance rod; 6. Tension spring; 7. Limiting plate; 71. Recess; 72. Protrusion; 8. Transmission gear; 9. Drive gear; 10. Connecting column; 11. Loading and unloading ports; 12. Cover plate; 13. Electric heating rod; 14. Roller. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example: Reference Figure 1-5 The drying and fixing device for tea processing shown includes a support frame 1, a drying cylinder 2 horizontally rotatably installed inside the support frame 1, and a drive mechanism installed on the side of the support frame 1 to drive the drying cylinder 2 to rotate along its axis. The drying cylinder 2 is a cylinder body with small holes (not shown in the figure) densely distributed on its surface for internal steam to be discharged. The circumferential side of the drying cylinder 2 is provided with upper and lower feeding ports 11, and a cover plate 12 is detachably installed at the upper and lower feeding ports 11. During the drying process, the cover plate 12 is kept closed to cover the upper and lower feeding ports 11.
[0029] The drying cylinder 2 has multiple sliding holes 201 evenly distributed on its circumference. The drying cylinder 2 also has multiple comb-shaped tea-turning components evenly distributed on its circumference. Specifically, the tea-turning components include a movable plate 4, a disturbance rod 5, and a tension spring 6. The movable plate 4 is located on the outside of the drying cylinder 2, and the length direction of the movable plate 4 is consistent with the axial direction of the drying cylinder 2. Multiple disturbance rods 5 are fixed at equal intervals on the movable plate 4 along its length direction, and each disturbance rod 5 slides through the sliding hole 201. The tension spring 6 is fixed between the drying cylinder 2 and the movable plate 4. Limiting plates 7 are fixed on both inner ends of the support frame 1. The circumference of the limiting plate 7 is concave and convex, and the concave and convex circumference of the limiting plate 7 is in contact with the movable plate 4.
[0030] Specifically, the limiting plate 7 has recesses 71 and protrusions 72 spaced apart on its circumferential side.
[0031] When the drying cylinder 2 rotates, the movable plate 4 moves against the recessed part 71 and the protruding part 72. When the movable plate 4 moves towards the recessed part 71, the disturbance rod 5 moves towards the inner side of the drying cylinder 2. When the movable plate 4 moves towards the top of the protruding part 72, the disturbance rod 5 moves towards the outer side of the drying cylinder 2. Therefore, during the continuous movement of the movable plate 4 against the recessed part 71 and the protruding part 72, the disturbance rod 5 moves back and forth along the radial direction of the drying cylinder 2, disturbing and dispersing the tea leaves inside the drying cylinder 2. When the movable plate 4 moves to the top of the protruding part 72, the disturbance rod 5 moves outward to the end away from the movable plate 4 and is flush with the inner wall of the drying cylinder 2. At this time, the tea leaves will not be obstructed by any structure other than the drying cylinder 2, and can be smoothly discharged from the drying cylinder 2.
[0032] To reduce the friction between the movable plate 4 and the limiting plate 7, rollers 14 are rotatably installed at both ends of the movable plate 4. The rollers 14 contact the recessed part 71 and the protruding part 72. Compared with the sliding friction between the movable plate 4 and the limiting plate 7, the rolling friction between the rollers 14 and the limiting plate 7 results in less friction and reduces the rotational resistance of the drying cylinder 2.
[0033] The drying and blanching device also includes a drying component, as one embodiment of this invention. Figure 2-4 As shown, the drying assembly includes an electric heating rod 13, the axis of which coincides with the axis of the drying cylinder 2. Both ends of the electric heating rod 13 are fixed to the support frame 1 via connecting columns 10. It should be further noted that, in order to avoid direct contact between the tea leaves and the electric heating rod 13, a protective sleeve (not shown in the figure) must be added to the outside of the electric heating rod 13. A bushing is coaxially mounted on the part of the connecting column 10 that passes through the drying cylinder 2, and the bushing is fixed to the drying cylinder 2.
[0034] In order to be compatible with the above-mentioned drying components, the drive mechanism in this embodiment includes a drive motor 3, a transmission gear 8 and a drive gear 9. The drive motor 3 is fixed to one side of the support frame 1, the drive gear 9 is coaxially fixed to the output end of the drive motor 3, and the transmission gear 8 is coaxially fixedly sleeved on the bushing and meshes with the drive gear 9.
[0035] It should be further explained that the drying component in this solution can also be other conventional drying structures in the prior art, such as the hot air blower set outside the drying cylinder 2 in the published patent; similarly, the drive mechanism can also be other conventional drive structures in the prior art; in addition, all electrical components in this device are electrically connected to an external controller, which is convenient for operators to control.
[0036] The working principle of this utility model is as follows: When in use, rotate the drying cylinder 2 so that the upper and lower feeding ports 11 face upwards, pour the tea leaves to be dried and sterilized into the drying cylinder 2, and close the cover plate 12.
[0037] The tea leaves are heated and dried using the drying assembly. During the rotation of the drying cylinder 2 driven by the drive mechanism, the movable plate 4 moves against the recessed part 71 and the protruding part 72. When the movable plate 4 moves toward the recessed part 71, the disturbance rod 5 moves toward the inner side of the drying cylinder 2. When the movable plate 4 moves toward the top of the protruding part 72, the disturbance rod 5 moves toward the outer side of the drying cylinder 2. As the movable plate 4 continues to move against the recessed part 71 and the protruding part 72 in the above-mentioned manner, the disturbance rod 5 moves back and forth along the radial direction of the drying cylinder 2 to disturb and disperse the tea leaves inside the drying cylinder 2.
[0038] After the tea leaves are dried, the drying cylinder 2 is rotated so that the upper and lower feed inlets 11 face downwards. At this time, the movable plate 4 moves to the top of the protrusion 72, and the disturbance rod 5 moves outwards to the end away from the movable plate 4 and is flush with the inner wall of the drying cylinder 2. At this time, the tea leaves will not be obstructed by any structure other than the drying cylinder 2, so they can be smoothly discharged from the drying cylinder 2.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drying and fixing device for tea processing, comprising a support frame (1), a drying cylinder (2) horizontally rotatably mounted inside the support frame (1), and a driving mechanism mounted on the side end of the support frame (1) to drive the drying cylinder (2) to rotate along its axis, wherein the drying cylinder (2) is provided with an inlet and outlet (11) on its circumferential side, and a cover plate (12) is detachably mounted at the inlet and outlet (11), characterized in that: The drying cylinder (2) has multiple sliding holes (201) evenly distributed on its circumference side, and multiple comb-shaped tea-turning components are evenly arranged on its circumference side. The tea-turning assembly includes a movable plate (4), a disturbance rod (5), and a tension spring (6). The movable plate (4) is located on the outside of the drying cylinder (2), and the length direction of the movable plate (4) is consistent with the axial direction of the drying cylinder (2). A plurality of disturbance rods (5) are fixed at equal intervals on the movable plate (4) along the length direction of the movable plate (4), and the plurality of disturbance rods (5) slide through the sliding hole (201) one by one. The tension spring (6) is fixed between the drying cylinder (2) and the movable plate (4). The support frame (1) has two inner ends fixed with limiting plates (7). The circumferential side of the limiting plate (7) is set to be concave and convex, and the concave and convex circumferential side of the limiting plate (7) is in contact with the movable plate (4). It also includes a drying component.
2. The drying and fixing device for tea processing according to claim 1, characterized in that: The drying assembly includes an electric heating rod (13), the axis of which coincides with the axis of the drying cylinder (2). Both ends of the electric heating rod (13) are fixed to the support frame (1) by connecting columns (10). A bushing is coaxially mounted on the part of the connecting column (10) that passes through the drying cylinder (2), and the bushing is fixed to the drying cylinder (2).
3. The drying and fixing device for tea processing according to claim 2, characterized in that: The drive mechanism includes a drive motor (3), a transmission gear (8), and a drive gear (9); The drive motor (3) is fixed to one side of the support frame (1), the drive gear (9) is coaxially fixed to the output end of the drive motor (3), and the transmission gear (8) is coaxially fixed to the bushing and meshes with the drive gear (9).
4. The drying and fixing device for tea processing according to claim 1, characterized in that: The limiting plate (7) has a recess (71) and a protrusion (72) spaced apart on its circumferential side. When the drying cylinder (2) rotates, the movable plate (4) moves in contact with the recess (71) and the protrusion (72).
5. A drying and fixing device for tea processing according to claim 4, characterized in that: When the movable plate (4) contacts the recess (71), the length of the disturbance rod (5) extending into the inner side of the drying cylinder (2) is the longest. When the movable plate (4) contacts the top of the protrusion (72), the end of the disturbance rod (5) away from the movable plate (4) is flush with the inner wall of the drying cylinder (2).
6. The drying and fixing device for tea processing according to claim 5, characterized in that: Both ends of the movable plate (4) are rotatably mounted with rollers (14), which are in contact with the recess (71) and the protrusion (72).