Automatic withering device for black tea

Abstract

The utility model relates to an automatic withering device for black tea, which relates to the technical field of tea production and comprises a withering trough, a square frame for placing tea to be withered is arranged at the upper part of the withering trough, and a servo motor for driving the square frame to rotate is arranged at the end part of the withering trough; an upper sealing assembly and a lower sealing assembly are arranged in gaps between the two sides of the square frame and the withering groove, the sealing assemblies are movably arranged on the side faces of the withering groove in a penetrating mode, and the ends of the sealing assemblies abut against the square frame all the time; a plurality of partition plates distributed at equal intervals are rotationally arranged in the withering trough, and a driving mechanism for driving the partition plates to rotate is arranged at the end parts of the partition plates. According to the withering device, the rotatable square frame is arranged, so that tea leaves are easier to turn over in the withering process, the withering uniformity and efficiency are improved, and the sealing assembly is arranged to prevent hot air from escaping from a gap between the square frame and the withering groove in the rotating process of the square frame, so that heat energy acts on the tea leaves more intensively; the heat energy utilization efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tea production, in particular to an automatic withering device for black tea. Background Art

[0002] Black tea withering refers to the process in which fresh tea leaves gradually and evenly lose water under certain conditions, undergoing a series of physical and chemical changes that soften and wilt the leaves, making them easier to use in the subsequent rolling process. Black tea can be withered using mechanical equipment, withering troughs and beds being common. During withering, the water evaporates rapidly, causing the chemical composition of the tea leaves to change rapidly. Therefore, it is important to carefully control the temperature, air volume, leaf thickness, stirring, and withering time.

[0003] However, in some existing withering devices, the hot air cannot be evenly distributed, resulting in some tea leaves being insufficiently heated and some tea leaves being overheated. Uneven withering will affect the quality of the tea leaves, making the taste and aroma of the tea leaves poor. During the withering process, the tea leaves may pile up together, forming an obstacle that is difficult for the hot air to penetrate, making it impossible for the hot air to fully contact the tea leaves. In some withering devices, the hot air may be lost without fully contacting the tea leaves, resulting in low thermal energy utilization and high energy consumption, which affects the withering efficiency.

[0004] To this end, we provide a black tea automatic withering device to solve the above problems. Summary of the Invention

[0005] The purpose of the utility model is to provide an automatic withering device for black tea in response to the problems of the background technology.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A device for automatically withering black tea comprises a withering trough, wherein the upper portion of the withering trough is provided with a square frame for placing tea leaves to be withered, and the ends of the withering trough are provided with a servo motor for driving the square frame to rotate; two sets of upper and lower sealing assemblies are provided at the gaps between the two sides of the square frame and the withering trough, and the sealing assemblies are movably arranged on the sides of the withering trough, and their ends are always in contact with the square frame; a plurality of equally spaced partitions are rotatably provided inside the withering trough, and the ends of the partitions are provided with driving mechanisms for driving them to rotate.

[0008] As a further optimization solution of the present invention, two opposite side surfaces of the square frame are set as punching plates, and the other two opposite side surfaces are set as closed plates, and the width of the punching plates is twice the width of the closed plates.

[0009] As a further optimization scheme of the utility model, the sealing assembly comprises a sealing plate; a plurality of equidistantly distributed supporting plates are fixedly arranged on the edge of the square frame away from the sealing plate, a guide rod is fixedly arranged on each supporting plate, a guide sleeve is sleeved on the guide rod, the guide sleeve is fixed on the wilting groove, and a spring is sleeved on the guide rod between the wilting groove and the supporting plate.

[0010] As a further optimization scheme of the utility model, the sealing plate is provided with an elastic block fixedly arranged on the edge of the square frame, the elastic block is provided with a round head on the abutting side of the square frame, and the corners of the square frame are also provided with corresponding round corner portions.

[0011] As a further optimization scheme of the utility model, the both ends of the partition plate are provided with bearing seats for supporting the rotating shafts of the partition plates; the driving mechanism comprises a gear fixedly sleeved on the rotating shaft of the partition plate and a rack located above the gear and engaged with the gear, and a guide rail for guiding the movement of the rack is fixedly arranged on the inner wall of the end portion of the wilting groove.

[0012] As a further optimization scheme of the utility model, the end portion of the rack is fixedly provided with a connecting plate, and the connecting plate is fixedly connected with the sealing plate above the connecting plate.

[0013] The utility model has the advantages of:

[0014] 1. The square frame can be rotated, so that the tea leaves are more easily turned during wilting, thereby accelerating the evaporation of water vapor and the softening process of the tea leaves, and the hot air can evenly blow on all parts of the tea leaves, thereby improving the uniformity and efficiency of wilting, and the distribution of the tea leaves in the square frame is more loose, which is beneficial to the penetration of hot air and heat dissipation, thereby improving the wilting effect.

[0015] 2. The sealing assembly can prevent the hot air from escaping from the gap between the square frame and the wilting groove during the rotation of the square frame, so that the heat energy can more concentratedly act on the tea leaves, thereby reducing the energy consumption and improving the heat energy utilization efficiency.

[0016] 3. The plurality of partition plates in the wilting groove can continuously change the airflow path in the wilting groove, so that the hot air can more evenly penetrate the tea leaves, thereby avoiding the formation of hot air dead angles, ensuring that all parts of the tea leaves can be fully affected by the hot air, improving the uniformity and efficiency of wilting, and the continuous rotation can generate airflow disturbance, thereby accelerating the evaporation of water vapor and heat transfer on the surface of the tea leaves, and further improving the wilting speed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the overall structure of the utility model;

[0018] Figure 2The whole structure explosion schematic view of the utility model;

[0019] Figure 3 The whole structure vertical section view of the utility model;

[0020] Figure 4 The sealing assembly structure schematic view of the utility model;

[0021] Figure 5 The driving mechanism and the baffle connecting structure schematic view of the utility model.

[0022] In the drawing,

[0023] 1, withering groove;2, square frame;3, servo motor;4, sealing assembly;401, sealing plate;402, elastic block;403, support plate;404, guide rod;405, guide sleeve;406, spring;5, baffle;501, bearing seat;6, driving mechanism;601, gear;602, rack;603, guide rail;604, connecting plate. Specific implementation

[0024] The following detailed description of the application in conjunction with the drawings, it is necessary to point out that the following detailed description is only used to further illustrate the application, can not be understood as limiting the scope of the application, the skilled person can make some non-essential improvements and adjustments to the application according to the above application.

[0025] Example one

[0026] In order to solve the existing withering device tea leaves difficult to be blown by hot air evenly, the uniformity and efficiency of withering are to be improved, the heat energy in the groove is easy to escape from the gap, the heat energy utilization efficiency is not high, please refer to Figures 1-3 The utility model provides a kind of black tea automatic withering device, including withering groove 1, the upper portion of withering groove 1 is equipped with square frame 2 for placing tea leaves to be withered, the end of withering groove 1 is equipped with servo motor 3 for driving square frame 2 rotation;Two sides of square frame 2 and the gap of withering groove 1 are equipped with two groups of sealing assembly 4, sealing assembly 4 is movably penetrated on the side surface of withering groove 1, and its end portion is always in abutment with square frame 2.The rotatable square frame 2 makes tea leaves more easily be turned over in withering process, distribute more loose in square frame 2, it is favorable to the penetration and heat dissipation of hot air, to accelerate the steam emission and softening process of tea leaves, tea leaves each part can be blown by hot air evenly, improve withering effect and efficiency;The setting of sealing assembly 4 can avoid that hot air escapes from the gap between square frame 2 and withering groove 1 during the rotation of square frame 2, so that heat energy is more concentratedly acted on tea leaves, reduce energy consumption, improve heat energy utilization efficiency.

[0027] Two opposite sides of the square frame 2 are provided with punched plates, and hot air blows against the tea in the square frame 2 through the punched plates; the other two opposite sides are provided with closed plates, and the width of the punched plate is twice the width of the closed plate.

[0028] As shown in Figure 4 , the sealing assembly 4 comprises a sealing plate 401; a plurality of equidistantly distributed supporting plates 403 are fixedly arranged on the edge of the sealing plate 401 away from the square frame 2; a guide rod 404 is fixedly arranged on each supporting plate 403; a guide sleeve 405 is sleeved on the guide rod 404; the guide sleeve 405 is fixed on the withering groove 1; and a spring 406 is sleeved on the guide rod 404 between the withering groove 1 and the supporting plate 403. When the square frame 2 rotates, the square frame 2 extrudes the sealing plate 401, so that the sealing plate 401 moves horizontally, and the sealing plate 401 further drives the guide rod 404 to move along the guide sleeve 405; at this time, the spring 406 is stretched; and with the continuous rotation of the square frame 2, under the restoring force of the spring 406, the sealing plate 401 can always be tightly attached to the square frame 2.

[0029] In order to improve the sealing performance, so that the sealing plate 401 can be more closely attached to the square frame 2, and the possibility of leakage is reduced, an elastic block 402 is fixedly arranged on the edge of the sealing plate 401 close to the square frame 2; the abutting side of the elastic block 402 and the square frame 2 is provided in a round head shape; and the corner of the square frame 2 is also provided with a corresponding round corner part. The round corner part of the square frame 2 cooperates with the round head part of the elastic block 402, reduces the friction and wear degree between the elastic block 402 and the square frame 2, so that the sealing assembly 4 can always be closely attached to the square frame 2 in the rotation process of the square frame 2.

[0030] Embodiment Two

[0031] On the basis of embodiment one, in order to solve the problems that the hot air in the hot air groove of the existing withering device is difficult to uniformly fill the entire groove, hot air dead angles are prone to exist, tea leaves are difficult to be fully affected by hot air at all parts, and the withering speed is not ideal, as shown in Figures 2-3 , Figure 5 , a plurality of equidistantly distributed partition plates 5 are rotationally arranged in the withering groove 1, and the end part of the partition plate 5 is provided with a driving mechanism 6 for driving the rotation of the partition plate 5. The driving mechanism 6 drives the partition plate 5 to continuously reciprocate, and the continuously reciprocating partition plate 5 can optimize the hot air distribution in the withering groove 1, so that the hot air can more uniformly penetrate the tea leaves, avoid the formation of hot air dead angles, help to ensure that the tea leaves at all parts can be fully affected by the hot air, improve the uniformity and efficiency of withering, and the continuously reciprocating partition plate 5 can also generate air flow disturbance, accelerate the evaporation of water vapor and heat transfer on the surface of the tea leaves, and further improve the withering speed.

[0032] Both ends of the partition plate 5 are provided with bearing seats 501 for supporting the rotating shafts thereof; the driving mechanism 6 comprises a gear 601 fixedly sleeved on the rotating shaft of the partition plate 5 and a rack 602 engaged with the gear 601 above the gear 601, a guide rail 603 for guiding the movement of the rack 602 is fixedly arranged on the inner wall of the end portion of the wilting groove 1, and a connecting plate 604 is fixedly arranged at the end portion of the rack 602 and is fixedly connected with the sealing plate 401 above the connecting plate 604. In use, the square frame 2 drives the sealing plate 401 to reciprocate in the rotating process, the sealing plate 401 drives the rack 602 to reciprocate along the guide rail 603, the rack 602 drives the gear 601 to reciprocate, and the gear 601 drives the partition plate 5 to reciprocate.

[0033] The above embodiment only expresses one embodiment of the present application, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. An automatic black tea withering device, comprising a withering tank (1), characterized in that: A square frame (2) for placing tea leaves to be withered is provided on the upper portion of the withering trough (1), and a servo motor (3) for driving the square frame (2) to rotate is provided at the end of the withering trough (1); Two upper and lower sets of sealing components (4) are provided at the gaps between the two sides of the square frame (2) and the withering trough (1); the sealing components (4) are movably provided on the side surfaces of the withering trough (1), and their ends are always in contact with the square frame (2); The withering trough (1) is internally rotatably provided with a plurality of partitions (5) distributed at equal intervals, and the ends of the partitions (5) are provided with driving mechanisms (6) for driving the partitions (5) to rotate.

2. The automatic withering device for black tea according to claim 1, characterized in that: Two opposite side surfaces of the square frame (2) are configured as punching plates, and the other two opposite side surfaces are configured as closed plates, wherein the width of the punching plates is twice the width of the closed plates.

3. The automatic withering device for black tea according to claim 1, characterized in that: The sealing assembly (4) comprises a sealing plate (401); A plurality of equally spaced support plates (403) are fixedly provided on the edge of the sealing plate (401) away from the square frame (2), and a guide rod (404) is fixedly provided on each support plate (403). A guide sleeve (405) is sleeved on the guide rod (404), and the guide sleeve (405) is fixed on the withering trough (1). A spring (406) is sleeved on the guide rod (404) between the withering trough (1) and the support plate (403).

4. The automatic withering device for black tea according to claim 3, characterized in that: An elastic block (402) is fixedly provided on the edge of the sealing plate (401) close to the square frame (2). The elastic block (402) is arranged in a rounded shape on the side abutting against the square frame (2). The corners of the square frame (2) are also arranged in corresponding rounded corners.

5. The automatic withering device for black tea according to claim 1, characterized in that: Both ends of the partition (5) are provided with bearing seats (501) for supporting the rotating shaft thereof; The driving mechanism (6) comprises a gear (601) fixedly mounted on the rotating shaft of the partition (5) and a rack (602) located above the gear (601) and meshing with the gear (601). A guide rail (603) for guiding the movement of the rack (602) is fixedly provided on the inner wall of the end of the withering trough (1).

6. The automatic withering device for black tea according to claim 5, characterized in that: A connecting plate (604) is fixedly provided at the end of the rack (602), and the connecting plate (604) is fixedly connected to the sealing plate (401) above it.

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