A withering device for tea processing

Abstract

This utility model relates to a withering device for tea processing. The lower surface of the turning rod (22) is flat and slides in contact with the bottom plate (21). The upper surface of the turning rod (22) forms an arc surface (23). The two sides of the arc surface (23) are provided with inclined surfaces (24) that are smoothly connected to it. The turning block (25) is a rhomboid structure. The tea leaves are evenly spread in the drying box (11) with a certain thickness and dried. The turning rod (22) is periodically controlled to slide along the length direction of the bottom plate (21). The tea leaves pass through the inclined surface (24) and the arc surface (23) on the upper surface of the turning rod (22) in sequence, so that the tea leaves rise first and then fall. Under the action of the turning block (25), they separate first and then gather together, so as to replace the manual automatic turning of the tea leaves in the drying box (11) so that the tea leaves below can be dried, improve the withering uniformity of the tea leaves, improve the turning efficiency and turning uniformity, and avoid affecting the quality of the finished tea leaves.

Description

Technical Field

[0001] This utility model relates to the field of tea production technology, and in particular to a withering device for tea processing. Background Technology

[0002] Withering, also known as water removal, involves spreading freshly picked leaves in a certain thickness and allowing them to dry in the sun until they wilt. During withering, the leaves undergo a series of changes: moisture decreases, the leaf texture softens from brittle to supple, making them easier to roll into strips; respiration accelerates, generating heat; cell membrane permeability increases; and the activity of enzymes in the leaves is enhanced, causing the decomposition and transformation of starch, protein, and insoluble protopectin into glucose, amino acids, and soluble pectin—substances beneficial to tea quality. Polyphenols are also oxidized to varying degrees. Proper and effective withering eliminates the grassy smell of fresh leaves, producing a delicate aroma, and resulting in a mellow, non-bitter tea. Current natural withering methods generally require manual, periodic turning of the tea leaves to ensure even drying and improve withering uniformity. However, manual turning is inefficient and often results in uneven distribution, negatively impacting the quality of the finished tea. Utility Model Content

[0003] The technical problem this invention aims to solve is that existing natural withering processes generally require manual turning of the tea leaves at regular intervals to allow the lower leaves to dry and improve the uniformity of withering. However, manual turning is inefficient and does not turn the tea leaves evenly enough, thus affecting the quality of the finished tea.

[0004] To solve the above problems, this utility model provides a withering device for tea processing. A drying box is provided on the support frame. The bottom of the drying box forms a bottom plate with a porous structure. A flipping rod is provided along the width direction of the bottom plate. The lower surface of the flipping rod is flat and slides in contact with the bottom plate. The upper surface of the flipping rod forms an arc surface. The two sides of the arc surface are provided with inclined surfaces that are smoothly connected to it. Multiple flipping blocks are provided at intervals along the length direction of the upper surface of the flipping rod. The flipping blocks have a rhomboid structure.

[0005] The withering device for tea processing provided by this utility model also has the following technical features:

[0006] The arc surface and the inclined surface are arranged sequentially along the width direction of the flipping rod. The center of the arc surface is close to the lower surface of the flipping rod, and the upper end of the inclined surface is smoothly connected to one end of the arc surface.

[0007] The lower surface of the flipping block is in contact with the arc and inclined surface of the upper surface of the flipping rod, and the length direction of the flipping block is perpendicular to the length direction of the flipping rod.

[0008] Both ends of the flipping rod are equipped with support rods. The upper end of the support rod is higher than the upper end of the drying box and is fixed with a crossbar. Both ends of the crossbar are equipped with sleeves. A motor is installed on the bracket. The output shaft of the motor is fixed with a lead screw. The lead screw is threadedly connected to one of the sleeves. A guide rod is installed on the bracket, and the other sleeve slides along the guide rod.

[0009] The crossbar is set perpendicular to the sleeve, and the lead screw is set parallel to the guide rod.

[0010] A connecting cylinder is provided between the crossbar and the sleeve. The end of the crossbar extends into the connecting cylinder and slides along it. The connecting cylinder is fixed to the sleeve. A guide seat is provided on the bracket along the length of the base plate. A wave groove is opened on the upper surface of the guide seat. A guide pin is provided on the crossbar and slides along the wave groove.

[0011] The support frame is equipped with a collection box, which is located at the bottom of the drying box, and a handle is provided on one side of the collection box.

[0012] This invention has the following beneficial effects: Tea leaves are evenly spread in a drying box at a certain thickness and dried. The turning rod is periodically controlled to slide along the length of the bottom plate. The tea leaves pass through the inclined surface and arc surface on the upper surface of the turning rod in sequence, so that the tea leaves first rise and then fall. Under the action of the turning block, the tea leaves first separate and then gather. This replaces manual turning of the tea leaves in the drying box, so that the tea leaves at the bottom can be dried, improving the uniformity of tea withering, improving the turning efficiency and the uniformity of turning, and avoiding affecting the quality of the finished tea. Attached Figure Description

[0013] Figure 1 This is an isometric view of the present invention;

[0014] Figure 2 This is a schematic diagram of the flipping lever.

[0015] Figure 3 for Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0016] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0017] like Figures 1 to 3As shown, the withering device for tea processing of this utility model has a drying box 11 on the support 10. The bottom of the drying box 11 forms a bottom plate 21 with a porous structure. The bottom plate 21 is provided with a flipping rod 22 along its width direction. The lower surface of the flipping rod 22 is flat and slides in contact with the bottom plate 21. The upper surface of the flipping rod 22 forms an arc surface 23. The two sides of the arc surface 23 are provided with inclined surfaces 24 that are smoothly connected to it. The upper surface of the flipping rod 22 is provided with a plurality of flipping blocks 25 at intervals along its length direction. The flipping blocks 25 have a rhomboid structure.

[0018] Tea leaves are evenly spread in the drying box 11 to a certain thickness and dried. The turning rod 22 is periodically controlled to slide along the length of the bottom plate 21. The tea leaves pass through the inclined surface 24 and the arc surface 23 on the upper surface of the turning rod 22 in sequence, so that the tea leaves first rise and then fall. Under the action of the turning block 25, the tea leaves first separate and then gather. This replaces manual turning of the tea leaves in the drying box 11, so that the tea leaves at the bottom can be dried, improving the uniformity of tea withering, improving the turning efficiency and the uniformity of turning, and avoiding affecting the quality of the finished tea.

[0019] Preferably, the arc surface 23 and the inclined surface 24 are arranged sequentially along the width direction of the flipping rod 22, the center of the arc surface 23 is close to the lower surface of the flipping rod 22, and the upper end of the inclined surface 24 is smoothly connected to one end of the arc surface 23.

[0020] Preferably, the lower surface of the flipping block 25 is in contact with the arc surface 23 and the inclined surface 24 of the upper surface of the flipping rod 22, and the length direction of the flipping block 25 is perpendicular to the length direction of the flipping rod 22, so that the tea leaves can simultaneously perform flipping actions of rising and falling, separating and gathering under the action of the flipping rod 22 and the flipping block 25.

[0021] Preferably, both ends of the flipping rod 22 are provided with support rods 31, the upper end of the support rod 31 is higher than the upper end of the drying box 11 and is fixed with a crossbar 32, and both ends of the crossbar 32 are provided with sleeves 33; the bracket 10 is provided with a motor 34, the output shaft of the motor 34 is fixed with a lead screw 35, the lead screw 35 is threadedly connected to one of the sleeves 33, the bracket 10 is provided with a guide rod 36, and the other sleeve 33 slides along the guide rod 36.

[0022] The output shaft of motor 34 drives lead screw 35 to rotate, which in turn moves one of the sleeves 33 and guides it through the other sleeve and guide rod 36, so as to drive crossbar 32, support rod 31 and flipping rod 22 to slide along the length of base plate 21.

[0023] One of the sleeves 33 has an internal thread that engages with the lead screw 35, and the other sleeve 33 has a smooth hole that slides with the guide rod 36.

[0024] The other end of the lead screw 35 and both ends of the guide rod 36 are mounted on the bracket 10 via the support rod 37, and the other end of the lead screw 35 is rotatably connected to the support rod 37, while both ends of the guide rod 36 are fixed to the support rod 37.

[0025] The output shaft of the motor 34 can rotate in both directions, so that the flipping rod 22 can slide back and forth along the length of the base plate 21 to repeatedly flip the tea leaves.

[0026] Preferably, the crossbar 32 is arranged perpendicularly to the sleeve 33, and the lead screw 35 is arranged parallel to the guide rod 36.

[0027] Preferably, a connecting cylinder 38 is provided between the crossbar 32 and the sleeve 33, the end of the crossbar 32 extends into the connecting cylinder 38 and slides along it, and the connecting cylinder 38 is fixed to the sleeve 33; a guide seat 39 is provided on the bracket 10 along the length direction of the base plate 21, a wave groove 40 is provided on the upper surface of the guide seat 39, and a guide pin 41 is provided on the crossbar 32, and the guide pin 41 slides along the wave groove 40.

[0028] When the crossbar 32 slides along the length of the base plate 21, the guide pin 41 slides along the wave groove 40, so that the crossbar 32 slides along its length at the same time. That is, when the flipping rod 22 slides along the length of the base plate 21, it can also move back and forth along the width of the base plate 21 to improve the flipping effect on the tea leaves and further improve the flipping efficiency and flipping uniformity.

[0029] The length of the flipping rod 22 is less than the width of the base plate 21, so that the flipping rod 22 can move back and forth along the width direction of the base plate 21.

[0030] The wave groove 40 is formed by multiple inclined grooves with opposite and staggered directions. The two ends of the inclined grooves are at different distances from the drying box 11, so that the crossbar 32 slides along its length at the same time.

[0031] Both sides of the drying box 11 are mounted on the support 10 via guide seats 39 to support the drying box 11.

[0032] Preferably, the support 10 is provided with a collection box 12, which is located at the bottom of the drying box 11. A handle 13 is provided on one side of the collection box 12. The collection box 12 collects impurities or tea leaves that fall from the through holes in the bottom plate of the drying box 11, thereby achieving preliminary filtration of the tea leaves in the drying box 11 and facilitating subsequent processes.

[0033] The working principle of this utility model is as follows:

[0034] Tea leaves are evenly spread in the drying box 11 to a certain thickness and dried. The output shaft of the motor 34 is periodically started to rotate forward and backward, driving the lead screw 35 to rotate forward and backward, which moves one of the sleeves 33. The other sleeve 33 guides the guide rod 36, causing the crossbar 32, support rod 31 and turning rod 22 to slide along the length of the base plate 21. The tea leaves pass through the inclined surface 24 and arc surface 23 on the upper surface of the turning rod 22 in sequence, causing the tea leaves to rise and then fall. Under the action of the turning block 25, the tea leaves first separate and then gather, thus replacing the manual turning of the tea leaves in the drying box 11. This allows the tea leaves below to dry, while the guide pin 41 slides along the wave groove 40, causing the crossbar 32 to slide along its length. That is, while the turning rod 22 slides along the length of the bottom plate 21, it can also move back and forth along the width of the bottom plate 21 to improve the turning effect of the tea leaves, improve the uniformity of tea leaf withering, further improve the turning efficiency and uniformity, and avoid affecting the quality of the finished tea leaves. The collection box 12 collects the impurities or tea leaves that fall from the through holes of the bottom plate 21 of the drying box 11, thus achieving preliminary filtration of the tea leaves in the drying box 11, which is convenient for subsequent processes.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A withering device for tea processing, characterized in that, A drying box (11) is provided on the support (10). The bottom of the drying box (11) forms a bottom plate (21) with a porous structure. The bottom plate (21) is provided with a flipping rod (22) along its width direction. The lower surface of the flipping rod (22) is flat and slides in contact with the bottom plate (21). The upper surface of the flipping rod (22) forms an arc surface (23). The two sides of the arc surface (23) are provided with inclined surfaces (24) that are smoothly connected to it. The upper surface of the flipping rod (22) is provided with multiple flipping blocks (25) at intervals along its length direction. The flipping blocks (25) are rhomboid in shape.

2. The withering device for tea processing according to claim 1, characterized in that, The arc surface (23) and the inclined surface (24) are arranged sequentially along the width direction of the flipping rod (22). The center of the arc surface (23) is close to the lower surface of the flipping rod (22), and the upper end of the inclined surface (24) is smoothly connected to one end of the arc surface (23).

3. The withering device for tea processing according to claim 1, characterized in that, The lower surface of the flipping block (25) is in contact with the arc surface (23) and inclined surface (24) of the upper surface of the flipping rod (22), and the length direction of the flipping block (25) is perpendicular to the length direction of the flipping rod (22).

4. The withering device for tea processing according to claim 1, characterized in that, The flipping rod (22) is provided with support rods (31) at both ends. The upper end of the support rod (31) is higher than the upper end of the drying box (11) and is fixed with a crossbar (32). Both ends of the crossbar (32) are provided with sleeves (33). The bracket (10) is provided with a motor (34). The output shaft of the motor (34) is fixed with a lead screw (35). The lead screw (35) is threadedly connected to one of the sleeves (33). The bracket (10) is provided with a guide rod (36). The other sleeve (33) slides along the guide rod (36).

5. The withering apparatus for tea processing according to claim 4, characterized in that, The crossbar (32) is set perpendicular to the sleeve (33), and the lead screw (35) is set parallel to the guide rod (36).

6. The withering apparatus for tea processing according to claim 4, characterized in that, A connecting cylinder (38) is provided between the crossbar (32) and the sleeve (33). The end of the crossbar (32) extends into the connecting cylinder (38) and slides along it. The connecting cylinder (38) is fixed to the sleeve (33). A guide seat (39) is provided on the bracket (10) along the length direction of the base plate (21). A wave groove (40) is opened on the upper surface of the guide seat (39). A guide pin (41) is provided on the crossbar (32). The guide pin (41) slides along the wave groove (40).

7. The withering apparatus for tea processing according to claim 1, characterized in that, The bracket (10) is provided with a collection box (12), which is located at the bottom of the drying box (11). A handle (13) is provided on one side of the collection box (12).

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