A green tea fermenter for black tea processing

Abstract

The present invention relates to the technical field of tea processing equipment, and in particular to a green tea fermenter for black tea processing. The present invention provides a green tea fermenter for black tea processing with a turning function. A green tea fermenter for black tea processing comprises a fermentation box, a box door, a fermentation frame, etc. The front side of the fermentation box is provided with a box door that can be slid open, and the bottom of the fermentation box is provided with a fermentation frame that can be slid out. The bottom of the fermentation frame is provided with dense holes, and also comprises a tumbling device, and the tumbling device comprises a rodless cylinder, a telescopic rod and a brush cylinder. A horizontal rodless cylinder is provided on the top of the fermentation box, and the movable part of the rodless cylinder is connected to the telescopic rod, and the telescopic rod extends downward into the fermentation box. The present invention realizes the full turning of the tea leaves in the fermentation frame through the cooperation of the rodless cylinder, the telescopic rod, the brush cylinder and other components, so that the tea leaves can be evenly contacted with the air during the fermentation process, so that the degree of fermentation of the tea leaves is sufficient and stable, and the quality of the tea leaves fermented in the same batch is uniform.

Description

Technical Field

[0001] The invention relates to the technical field of tea processing equipment, in particular to a green tea fermenter for black tea processing. Background Art

[0002] Black tea is one of the six major types of tea. It is a fully fermented tea with a fermentation degree of 80%-90%. It is characterized by mild tea nature, red tea leaves, sweet and mellow taste. The production process of black tea is mainly divided into four steps, namely withering, rolling, fermentation and drying. The fermentation of black tea is generally carried out by placing the rolled green tea leaves in a fermentation basket or fermentation vehicle. Fermentation must control the appropriate temperature, humidity and oxygen required for tea polyphenol enzymes to undergo oxidative polymerization reactions. Generally, the room temperature is required to be between 22 and 30°C and the relative humidity is required to reach above 90%. Fermentation is the most critical part of black tea production. Polyphenol compounds undergo profound changes to form substances such as theaflavins, thearubigins and theabrownins, which give black tea the characteristics of red tea leaves, red leaves and sweet and mellow taste.

[0003] Patent publication number CN203353587U discloses a black tea fermentation device with a refrigeration function, including a closed fermentation chamber, a controller, a convection device that can discharge the air in the fermentation chamber to the outside, a spray device that can humidify the fermentation chamber, and an oxygen tank. A heating lamp is provided in the fermentation chamber, and an air inlet connected to the convection device is provided on the surface wall of the fermentation chamber. The convection device includes an air cooler, and the spray device includes a pipe body with fine holes and a water pump arranged in the fermentation chamber. The oxygen tank is connected to the fermentation chamber through an oxygen gas pipe, and the controller is electrically connected to the convection device, the spray device, and the heating lamp respectively.

[0004] Patent publication number CN203290179U discloses a black tea fermentation device with a humidification function, including a closed fermentation chamber and a steam generating device, the fermentation chamber includes a wall, an exhaust device is installed at the lower part of the wall, the steam generating device includes a steam pipe and a steam generator, and the steam generator is arranged outside the fermentation chamber to send steam into the fermentation chamber through the steam pipe.

[0005] Although the above-mentioned black tea fermentation device can effectively adjust the temperature and humidity of the fermentation environment, during the fermentation process, the thickness of the spread leaves is usually between 8 and 12 cm. When the above-mentioned device is fermenting, the tea leaves are placed in the container and remain motionless, which can easily lead to uneven fermentation of tea leaves in different positions, and then make the quality of the same batch of tea leaves uneven. Later, it is necessary to re-screen and classify according to quality. Therefore, it is necessary to design a tea leaf fermenter with a turning function for black tea processing. Summary of the invention

[0006] In order to overcome the disadvantages of the existing black tea fermentation device that during the fermentation process, the tea leaves are placed in a container and remain motionless, which easily leads to uneven fermentation of tea leaves at different positions and thus uneven quality of the same batch of tea leaves, the present invention provides a green tea fermenter for black tea processing with a turning function.

[0007] The technical implementation scheme of the present invention is: a green tea fermenter for black tea processing, including a fermentation box, a box door and a fermentation frame, the front side of the fermentation box is provided with a box door that can be slid open, the bottom of the fermentation box is provided with a fermentation frame that can be slid out, the bottom of the fermentation frame is evenly spaced with dense holes, and also includes a tumbling device, the tumbling device includes a rodless cylinder, a telescopic rod and a brush cylinder, a horizontal rodless cylinder is provided on the top of the fermentation box, the movable part of the rodless cylinder is connected to the telescopic rod, the telescopic rod extends downward into the fermentation box, the bottom end of the telescopic rod is rotatably installed with a brush cylinder, and the side of the brush cylinder is connected to a driving component.

[0008] Furthermore, it also includes a lifting device, which includes a slider and an electric push rod. Slide grooves are symmetrically opened on both sides of the fermentation box. Sliders that horizontally pass through the fermentation box are slidably installed in the slide grooves. A matching groove for the slider is opened at the bottom of the fermentation frame. An electric push rod is installed on the side of the fermentation box, and the movable part of the electric push rod is fixedly connected to the slider.

[0009] Furthermore, it also includes a heating lamp, a fan and a control box. A heating lamp is installed on the inner side of the top of the fermentation box, a fan is provided on the side wall of the fermentation box, and a control box is installed on the outer side of the fermentation box. The heating lamp and the fan are electrically connected to the control box.

[0010] Furthermore, it also includes handles and observation windows. Handles are installed on both sides of the fermentation box, and an observation window made of transparent material is provided on the box door.

[0011] Furthermore, it also includes a lifting frame and a push block. The lifting frame is fixedly installed on the front side of the movable part of the telescopic rod, and a push block is arranged on the inner side of the box door. When the box door slides open, the push block can push the lifting frame to lift up.

[0012] Furthermore, it also includes a knocking device, which includes an L-shaped rod, a fixed block, a bracket, an elastic sphere and a torsion spring. The end of the slider is fixedly connected to the L-shaped rod, a fixed block is installed on the side of the fermentation box, the bracket is rotatably installed on the fixed block, the bottom end of the bracket is connected to the elastic sphere, and a torsion spring is connected between the bracket and the fixed block.

[0013] Furthermore, it also includes a limiting device, which includes a fixing rod, a sleeve and a first elastic member. A positioning hole is provided on the box door. A bent fixing rod is connected to the side of the fermentation box. The end of the fixing rod is slidably connected to the sleeve. A first elastic member is connected between the sleeve and the fixing rod. The sleeve can be extended into the positioning hole to limit the sliding of the box door.

[0014] Furthermore, a collecting device is also included, which includes a collecting frame, a limiting plate, a U-shaped rod and a second elastic member. A slidable collecting frame is provided on the bottom side of the fermentation box, and the collecting frame is located below the fermentation frame. A limiting plate is installed on the rear side of the fermentation box, and a U-shaped rod that can slide along the limiting plate is installed on the rear side of the collecting frame. A second elastic member is connected between the U-shaped rod and the limiting plate.

[0015] The present invention has the following advantages: 1. The present invention realizes the full turning of the tea leaves in the fermentation frame through the cooperation of the rodless cylinder, the telescopic rod and the brush cylinder, so that the tea leaves can be evenly contacted with the air during the fermentation process, so that the degree of tea leaf fermentation is sufficient and stable, and the quality of the tea leaves fermented in the same batch is uniform;

[0016] 2. The present invention is provided with a heating lamp and a fan, which can be controlled by one button through the control box, and can simply and conveniently adjust the temperature and air flow rate in the fermentation box, so that the fermentation environment remains suitable and the quality of the fermented tea is improved;

[0017] 3. The present invention uses an elastic sphere to impact the fermentation frame, so that the tea leaves in the fermentation frame can vibrate, thereby causing the tea leaves to be turned more fully and evenly, thereby accelerating the efficiency of full fermentation;

[0018] 4. The present invention is provided with components such as an observation window and a handle, which can not only observe the changes of tea leaves in real time without affecting the fermentation environment, but also can conveniently move the device through the handle, which is convenient and simple to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a rear view of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the tumbling device of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting device of the present invention.

[0024] Figure 6 It is a schematic diagram of the bottom structure of the fermentation frame of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting frame and the push block of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the striking device of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limiting device of the present invention.

[0028] Fig.10 It is an enlarged view of point A of the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the collecting device of the present invention.

[0030] The meanings of the reference numerals in the figure are as follows: 1: fermentation box, 2: box door, 3: fermentation frame, 4: tumbling device, 41: rodless cylinder, 42: telescopic rod, 43: brush cylinder, 5: lifting device, 51: slide groove, 52: slider, 53: groove, 54: electric push rod, 6: heating lamp, 7: fan, 8: control box, 9: handle, 10: observation window, 11: lifting frame, 12: push block, 13: knocking device, 131: L-shaped rod, 132: fixing block, 133: bracket, 134: ball, 135: torsion spring, 14: limiting device, 141: positioning hole, 142: fixing rod, 143: sleeve, 144: first elastic member, 15: collecting device, 151: collecting frame, 152: limiting plate, 153: U-shaped rod, 154: second elastic member. DETAILED DESCRIPTION

[0031] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] Example 1

[0033] A green tea fermentation device for processing black tea, such as Figure 1-Figure 4 As shown, it includes a fermentation box 1, a box door 2 and a fermentation frame 3. The front side of the fermentation box 1 is movably connected with a box door 2 that can be slid open through a slide rail and a fixed block. The bottom of the fermentation box 1 is provided with a fermentation frame 3 that can be slid and taken out. The bottom of the fermentation frame 3 is provided with an array of dense holes to enhance ventilation and air permeability. The diameter of the dense holes is smaller than the size of tea leaves. It also includes a tumbling device 4 for turning the tea leaves. The tumbling device 4 includes a rodless cylinder 41, a telescopic rod 42 and a brush cylinder 43. A horizontal rodless cylinder 41 is installed on the top of the fermentation box 1 by bolts. The movable part of the rodless cylinder 41 is vertically connected with the telescopic rod 42 by fixing glue. The telescopic rod 42 extends downward into the fermentation box 1. A brush cylinder 43 is rotatably installed on the bottom end of the telescopic rod 42. The brush cylinder 43 consists of two parts: a drum and a flexible brush densely covered on the surface of the drum. The side of the brush cylinder 43 is coaxially connected with a drive assembly motor.

[0034] like Figure 5 and Figure 6 As shown, it also includes a lifting device 5 for controlling the height of the fermentation frame, and the lifting device 5 includes a slider 52 and an electric push rod 54. Vertical slide grooves 51 are symmetrically provided on both sides of the fermentation box 1. A slider 52 that horizontally passes through the fermentation box 1 is slidably installed in the slide groove 51, and the slider 52 can move in the vertical direction along the slide groove. A matching groove 53 with the slider 52 is provided at the bottom of the fermentation frame 3. The fermentation frame 53 can be fixedly placed on the slider 52 and lifted and lowered together with the slider 52. An electric push rod 54 is installed on the side of the fermentation box 1 by bolts. The movable part of the electric push rod 54 is fixedly connected to the slider 52 by bolts, and the electric push rod 54 can drive the fermentation frame 3 to rise and fall.

[0035] When the green tea leaves need to be fermented, the tea leaves are spread flat in the fermentation frame 3, and then the fermentation frame 3 is fixed on the slider 52, and then the box door 2 is closed, and the rodless cylinder 41 is controlled to work, pushing the brush cylinder 43 to move in the horizontal direction, and at the same time, the brush cylinder 43 is driven to rotate by the coaxially connected drive assembly motor to realize the tumbling of the tea leaves in the fermentation frame 3. At the same time, the slider 52 can be driven by the electric push rod 54 to make reciprocating linear motion in the vertical direction, driving the fermentation frame 3 to be raised and lowered, and the telescopic rod 42 is compressed by force to drive the brush cylinder 43 to move up and down synchronously with the fermentation frame 3, so that there is enough space on the bottom surface of the fermentation frame 3 for air circulation, and the tea leaves on the bottom side of the fermentation frame 3 remain well ventilated.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 3 As shown, it also includes a heating lamp 6, a fan 7 and a control box 8. A heating lamp 6 is installed on the inner side of the top of the fermentation box 1 through the cooperation of bolts and a lamp holder. The heating lamp 6 is used to heat the inside of the fermentation box 1. A fan 7 is installed on the side wall of the fermentation box 1 through bolts. There are two fans 7 and they are symmetrically distributed on the left and right. The fan 7 is used to form convection to accelerate air circulation and cool down. A control box 8 is installed on the outside of the fermentation box 1 through bolts. The heating lamp 6 and the fan 7 are electrically connected to the control box 8. It also includes a handle 9 and an observation window 10. Handles 9 are rotatably installed on both sides of the fermentation box 1. The handles 9 can be rotated 90 degrees to open in a horizontal state to facilitate holding and carrying the mobile device. The box door 2 is provided with an observation window 10 made of transparent glass. There are two observation windows 10 and they are symmetrical on the left and right.

[0038] During the fermentation process, the heating lamp 6 and the fan 7 can be driven by the controller integrated on the control box 8 to adjust the temperature and air circulation speed in the fermentation box 1 so that the tea leaves are within a suitable fermentation temperature range and have good ventilation. At the same time, the fermentation status in the box can be checked through the observation window 10 on the box door 2.

[0039] like Figure 7 As shown, it also includes a lifting frame 11 and a push block 12. The lifting frame 11 is fixedly installed on the front side of the movable part of the telescopic rod 42 by bolts. The lifting frame 11 is an inverted triangle as a whole. The push block 12 is welded on the inner side of the box door 2. When the box door 2 slides open, the push block 12 can push the lifting frame 11 to lift.

[0040] When the box door 2 is opened, the push block 12 moves to the left together with the box door 2. During the movement, the push block 12 contacts the inclined surface of the lifting frame 11, pushing the lifting frame 11 to rise, thereby causing the telescopic rod 42 to contract and the brush cylinder 43 to rise, so as to facilitate the sliding and fixing of the fermentation frame 3.

[0041] Example 3

[0042] On the basis of Example 2, Figure 8 As shown, it also includes a knocking device 13 for knocking the fermentation frame 3 to make it vibrate, and the knocking device 13 includes an L-shaped rod 131, a fixed block 132, a bracket 133, an elastic sphere 134 and a torsion spring 135. The L-shaped rod 131 is welded to the end of the slider 52, and the fixed block 132 is installed on the side of the fermentation box 1 by bolts. The bracket 133 is rotatably installed on the fixed block 132. The bracket 133 is a U-shaped frame opened to the side of the fermentation box 1. The bottom end of the bracket 133 is connected to the elastic sphere 134 by a threaded connection. The elastic sphere 134 can rotate with the bracket 133 to knock on the fermentation frame. A torsion spring 135 is connected between the bracket 133 and the fixed block 132, and the torsion spring 135 is made of stainless steel.

[0043] When the fermentation frame 3 moves up and down with the electric push rod 54, the slider 52 also moves up and down along the slide groove 51. When the L-shaped rod 131 at the right end of the slider 52 rises to the highest point, it pushes the bracket 133 to rotate clockwise, and the elastic sphere 134 rotates to the side of the fermentation frame 3 to knock the fermentation frame 3, causing the fermentation frame 3 to vibrate, and then rotates back to the initial position under the resetting action of the torsion spring 135. When the slider 52 rises and rotates again next time, the knocking is repeated, thereby making the tea leaves in the frame move more violently, promoting enzymatic oxidation, and making the tea leaves ferment more fully.

[0044] like Fig. 9 and Fig.10As shown, it also includes a limiting device 14 for clamping and fixing the box door 2, and the limiting device 14 includes a fixing rod 142, a sleeve 143 and a first elastic member 144. A circular positioning hole 141 is opened in the middle of the left side of the box door 2, and a bent L-shaped fixing rod 142 is connected to the side of the fermentation box 1. The end of the fixing rod 142 extends vertically to the side of the box door, and the end of the fixing rod 142 is slidably connected to the sleeve 143. A first elastic member 144 is connected between the sleeve 143 and the fixing rod 142. The first elastic member 144 adopts a stainless steel compression spring or a rubber elastic sleeve. The sleeve 143 can be extended into the positioning hole 141 to limit the sliding of the box door 2.

[0045] When the tea leaves need to be turned over, the door 2 is closed first. During the movement of the door 2, the sleeve 143 is pressed down on the fixing rod 142. When the positioning hole 141 in the middle of the left side of the door 2 moves to be flush with the sleeve 143, the sleeve 143 is extended into the positioning hole 141 under the resetting action of the first elastic member 144 and is clamped and fixed, so as to prevent the door 2 from accidentally sliding open and causing the tea leaves to scatter.

[0046] like Fig.11 As shown, it also includes a collecting device 15 for collecting fallen objects during the tumbling of tea leaves, the collecting device 15 includes a collecting frame 151, a limiting plate 152, a U-shaped rod 153 and a second elastic member 154. A slidable collecting frame 151 is provided on the bottom side of the fermentation box 1, and the center of the frame surface of the collecting frame 151 is slightly recessed downward to facilitate collection. The collecting frame 151 is located below the fermentation frame 3, and the limiting plate 152 is installed on the rear side of the fermentation box 1 by bolts. A U-shaped rod 153 that can slide along the limiting plate 152 is welded on the rear side of the collecting frame 151, and the U-shaped rod 153 is open to the rear side, and the opening width is consistent with the width of the limiting plate. A second elastic member 154 is connected between the U-shaped rod 153 and the limiting plate 152. The second elastic member 154 is made of stainless steel compression spring, and the collecting frame 151 can pop out automatically under the action of the second elastic member.

[0047] During the turning process of the tea leaves, it is inevitable that some impurities mixed in the tea leaves will fall from the dense holes at the bottom of the fermentation frame 3. At this time, the collecting frame 151 is located directly below the fermentation frame 3. Under the limiting action of the box door 2, the U-shaped rod 153 on the rear side of the collecting frame 151 extends out along the limiting plate 152, and the second elastic member 154 is compressed. When the box door 2 is opened, the collecting frame 151 pops out automatically under the resetting action of the second elastic member 154, which is convenient for the processing of the collected impurities.

[0048] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A green tea fermenter for processing black tea, comprising a fermentation box (1), a box door (2) and a fermentation frame (3), wherein the front side of the fermentation box (1) is provided with a box door (2) that can be slid open, the bottom of the fermentation box (1) is provided with a fermentation frame (3) that can be slid out, and the bottom of the fermentation frame (3) is provided with dense holes at equal intervals; Its characteristics are: It also includes a tumbling device (4), the tumbling device (4) including a rodless cylinder (41), a telescopic rod (42) and a brush cylinder (43), a horizontal rodless cylinder (41) is provided on the top of the fermentation box (1), the movable part of the rodless cylinder (41) is connected to the telescopic rod (42), the telescopic rod (42) extends downward into the fermentation box (1), the bottom end of the telescopic rod (42) is rotatably mounted with a brush cylinder (43), and the side of the brush cylinder (43) is connected to a driving component; The fermentation box (1) also includes a lifting device (5), the lifting device (5) including a slider (52) and an electric push rod (54), the fermentation box (1) is symmetrically provided with slide grooves (51), the slide grooves (51) are slidably installed with sliders (52) that horizontally pass through the fermentation box (1), the bottom of the fermentation frame (3) is provided with a groove (53) that matches the slider (52), the side of the fermentation box (1) is provided with an electric push rod (54), and the movable part of the electric push rod (54) is fixedly connected to the slider (52); It also includes a heating lamp (6), a fan (7) and a control box (8); the heating lamp (6) is installed on the inner side of the top of the fermentation box (1); the fan (7) is provided on the side wall of the fermentation box (1); the control box (8) is installed on the outer side of the fermentation box (1); the heating lamp (6) and the fan (7) are both electrically connected to the control box (8); It also includes a lifting frame (11) and a push block (12), wherein the lifting frame (11) is fixedly mounted on the front side of the movable part of the telescopic rod (42), and the push block (12) is arranged on the inner side of the box door (2), and when the box door (2) slides open, the push block (12) can push the lifting frame (11) to lift up; The invention also comprises a knocking device (13), wherein the knocking device (13) comprises an L-shaped rod (131), a fixed block (132), a bracket (133), an elastic sphere (134) and a torsion spring (135); the end of the slider (52) is fixedly connected to the L-shaped rod (131); the side of the fermentation box (1) is provided with a fixed block (132); the bracket (133) is rotatably mounted on the fixed block (132); the bottom end of the bracket (133) is connected to the elastic sphere (134); and a torsion spring (135) is connected between the bracket (133) and the fixed block (132).

2. A green tea fermenter for black tea processing according to claim 1, characterized in that: It also comprises a handle (9) and an observation window (10). The handles (9) are installed on both sides of the fermentation box (1), and the box door (2) is provided with an observation window (10) made of a transparent material.

3. The green tea fermenter for black tea processing according to claim 1, characterized in that: The fermentation box (1) further comprises a limiting device (14), wherein the limiting device (14) comprises a fixing rod (142), a sleeve (143) and a first elastic member (144); a positioning hole (141) is provided on the box door (2); a bent fixing rod (142) is connected to the side of the fermentation box (1); the end of the fixing rod (142) is slidably connected to the sleeve (143); a first elastic member (144) is connected between the sleeve (143) and the fixing rod (142); and the sleeve (143) can extend into the positioning hole (141) to limit the sliding of the box door (2).

4. The green tea fermenter for black tea processing according to claim 1, characterized in that: The fermentation box (1) also includes a collecting device (15), the collecting device (15) including a collecting frame (151), a limiting plate (152), a U-shaped rod (153) and a second elastic member (154). The bottom side of the fermentation box (1) is provided with a slidable and removable collecting frame (151), the collecting frame (151) is located below the fermentation frame (3), the limiting plate (152) is installed at the rear side of the fermentation box (1), the U-shaped rod (153) is installed at the rear side of the collecting frame (151) and can slide along the limiting plate (152), and the second elastic member (154) is connected between the U-shaped rod (153) and the limiting plate (152).

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