Novel pre-sorting tea leaf fixation machine

Abstract

The utility model discloses a novel pre-sorting tea leaf fixation machine, belongs to the technical field of tea leaf processing, and solves the problem that the quality of tea leaves is influenced as the tea leaves are subjected to fixation without pre-sorting in the conventional tea leaf fixation machine. The green removing device comprises a green removing device and further comprises a pre-sorting device, the pre-sorting device comprises a rack, a vibrating screen and a feeding hopper, the vibrating screen is installed on the rack, and the feeding hopper is installed on the rack above the vibrating screen; the de-enzyming device comprises a de-enzyming cylinder, a heater is arranged at the top of the de-enzyming cylinder, a fan is arranged at one end, close to the pre-sorting device, of the de-enzyming cylinder, an air inlet of the fan is communicated with the heater through a pipeline, and an air outlet of the fan is communicated with an inner cavity of the de-enzyming cylinder through a pipeline; and the heater is also communicated with one end, far away from the pre-sorting device, of the fixation barrel through a pipeline. According to the tea leaf fixation machine, pre-sorting can be carried out before fixation, fixation waste heat can be recycled, the processing cost is effectively reduced, and the quality of tea leaves is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, and more specifically, to a novel pre-sorting tea withering machine. Background Art

[0002] Tea leaf killing refers to a tea-making step that destroys and inactivates the oxidase activity in fresh tea leaves through high temperature, inhibits the enzymatic oxidation of tea polyphenols in fresh tea leaves, evaporates part of the moisture in fresh tea leaves, softens the tea leaves, and makes them easier to roll and shape, while emitting a green smell and promoting the formation of a good aroma. With the development of technology, manual tea leaf killing has been gradually replaced by mechanized tea leaf killing devices.

[0003] As in the prior application of the applicant, the announcement number is: CN217364520U, which discloses a tea withering and rolling machine, which belongs to the field of tea manufacturing technology and solves the problem of single function and low production efficiency of the existing tea withering and rolling machine. The tea withering and rolling machine includes a frame, a mounting bracket is provided on one side above the frame, a withering roller for withering tea leaves is rotatably provided on the mounting bracket, a toothed ring surrounding the outer surface is provided on the withering roller, the toothed ring is connected to a first rotating shaft structure, the first rotating shaft structure is connected to a first motor through a belt transmission structure, a rolling cylinder is provided on the other side above the frame, a rolling mechanism for rolling tea leaves is rotatably provided on the rolling cylinder, and the rolling mechanism is connected to a worm gear transmission mechanism. The utility model provides a tea withering and rolling machine, which can fully wither and roll, effectively improve production efficiency, and has a simple structure and a small overall volume, which can meet the needs of small-scale tea production.

[0004] In the above-mentioned existing tea leaf withering and rolling machine, during withering, tea leaves are directly put into the withering drum through the inlet and outlet, and tea leaves without pre-sorting are directly withered, which not only affects the withering of tea leaves, but also affects the quality of tea leaves. At the same time, the withering drum directly heats the withering drum with a heating plate, and the heat loss is relatively serious, which not only causes a waste of resources, but also has a relatively high cost.

[0005] Therefore, it is necessary to design a new type of pre-sorting tea withering machine to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a new type of tea withering machine with pre-sorting in view of the above-mentioned deficiencies in the prior art, which can perform pre-sorting before withering and recycle the waste heat from withering, effectively reducing processing costs and improving the quality of tea.

[0007] The technical solution of the utility model is as follows: a new type of tea withering machine for pre-sorting, including a withering device and a pre-sorting device, the pre-sorting device including a frame, a vibrating screen and a feed hopper, the vibrating screen is installed on the frame, the feed hopper is installed on the frame above the vibrating screen, and the discharge port of the vibrating screen is located above the feed port of the withering device; the withering device includes a withering cylinder, a heater is provided on the top of the withering cylinder, a fan is provided at one end of the withering cylinder close to the pre-sorting device, the air inlet of the fan is connected to the heater through a pipeline, the air outlet of the fan is connected to the inner cavity of the withering cylinder through a pipeline, and the heater is also connected to the end of the withering cylinder away from the pre-sorting device through a pipeline.

[0008] As a further improvement, a plurality of self-locking universal wheels are evenly installed at the bottom of the frame corresponding to the pre-sorting device.

[0009] Furthermore, the vibrating screen comprises a sieve body with a U-shaped cross-section, the sieve body is obliquely installed on a frame, a sieve is provided in the middle of the sieve body, the feed hopper is located above the sieve, a first driving mechanism for driving the sieve body to vibrate is provided on the frame, the end of the sieve body close to the fixing device is open, and a baffle is provided at the end of the sieve close to the fixing device.

[0010] Furthermore, a suspension arm is provided between the top of the screen body and the frame, and the two ends of the suspension arm are rotatably connected to the screen body and the frame respectively; a support wheel is rotatably installed on the bottom end of the screen body, and the support wheel is rollingly installed on the frame; the first driving mechanism includes a first driving motor, and the output end of the first driving motor is connected to the top of the screen body through a crank rocker mechanism.

[0011] Furthermore, a plurality of comb plates are provided on the top of the screen.

[0012] Furthermore, a plurality of through holes are provided at the bottom of the sieve body, and the diameter of the through holes is smaller than the diameter of the sieve holes of the sieve.

[0013] Furthermore, a rotating cylinder is rotatably installed in the withering cylinder through a bearing, one end of the rotating cylinder corresponds to the discharge port of the pre-sorting device, and an end of the withering cylinder away from the pre-sorting device is provided with a discharge box connected to the rotating cylinder, the heater is connected to the discharge box through a pipeline, and the withering cylinder is provided with a second driving mechanism for driving the rotating cylinder to rotate.

[0014] Furthermore, the second driving mechanism includes a second driving motor, a gear ring is provided on the rotating cylinder, the second driving motor is installed on the outer wall of the withering cylinder, and a gear is connected to the output end of the second driving motor, and the gear is meshed with the gear ring.

[0015] Furthermore, spiral blades are also arranged in the rotating cylinder.

[0016] Furthermore, the inner wall of the rotating cylinder and the side walls of the spiral blades are plated with a ceramic film.

[0017] Beneficial Effects

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The utility model of the tea withering machine provides a pre-sorting device on one side of the feeding port of the withering device. Before withering, the tea leaves are fed into the vibrating screen through the feeding hopper. The coarse stems in the tea leaves can be screened out by the vibration of the vibrating screen. The screened tea leaves are then fed into the withering device for withering processing. Pre-sorting can be performed before withering to avoid the coarse stems from being mixed in the tea leaves and participating in the withering, thereby effectively improving the quality of the tea leaves.

[0020] 2. The tea-withering machine of the present invention heats the tea leaves in the withering cylinder by arranging a heater on the withering cylinder. During the withering process, the preheat at the tail of the withering cylinder can be drawn into the heater for heating by a fan, and then blown into the withering cylinder. The residual heat from withering can be recycled to avoid heat loss, thereby effectively reducing processing costs.

[0021] 3. The tea withering machine of the utility model can effectively improve the wear resistance and corrosion resistance of the rotating cylinder and the spiral leaves and extend their service life by coating the rotating cylinder and the outer wall of the spiral leaves with a ceramic film, and effectively prevent the tea leaves from adhering to the rotating cylinder and the spiral leaves, thereby improving the quality and efficiency of withering. At the same time, the ceramic film has good thermal conductivity, which helps to transfer heat to the tea leaves quickly and evenly, so that the tea leaves are heated more evenly, thereby better achieving the withering effect and ensuring the stability of the tea quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 It is an enlarged schematic diagram of the three-dimensional structure of one side of the pre-sorting device in the utility model;

[0024] Figure 3 It is an enlarged schematic diagram of the three-dimensional structure of the other side of the pre-sorting device in the utility model;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0026] Figure 5 for Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0027] Figure 6It is an enlarged schematic diagram of the three-dimensional structure of the withering device in the utility model without the withering tube.

[0028] Among them: 1. frame; 2. vibrating screen; 3. feed hopper; 4. killing cylinder; 5. heater; 6. fan; 7. self-locking universal wheel; 8. rotating cylinder; 9. discharge box; 10. second drive motor; 11. gear ring; 21. screen body; 22. screen; 23. baffle; 24. boom; 25. support wheel; 26. first drive motor; 27. crank rocker mechanism; 28. comb plate; 29. ​​through hole. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0030] See also Figure 1-6 The utility model is a new type of pre-sorting tea-fixing machine, including a fixing device and a pre-sorting device, wherein the pre-sorting device includes a frame 1, a vibrating screen 2 and a feeding hopper 3, the vibrating screen 2 is mounted on the frame 1, the feeding hopper 3 is mounted on the frame 1 above the vibrating screen 2, the discharge port of the vibrating screen 2 is located above the feeding port of the fixing device, specifically, an inclined lower hopper is provided at the discharge port of the vibrating screen 2, and an inclined receiving hopper is provided at the feeding port of the fixing device, the lower hopper is located above the receiving hopper, and the tea leaves screened by the vibrating screen 2 fall into the receiving hopper through the lower hopper In order to facilitate the better transition of the tea leaves to the withering device; the withering device comprises a withering cylinder 4, on the top of which is provided a heater 5, which may be a box with a heating wire installed inside; a fan 6 is provided at one end of the withering cylinder 4 close to the pre-sorting device, the air inlet of the fan 6 is connected with the heater 5 through a pipe, the air outlet of the fan 6 is connected with the inner cavity of the withering cylinder 4 through a pipe, the heater 5 is also connected with the end of the withering cylinder 4 away from the pre-sorting device through a pipe, so as to realize the extraction of the waste heat at the tail end of the withering cylinder 4 to the head end for continued use, thereby forming a hot air circulation heating method for withering the tea leaves.

[0031] The tea withering machine of the utility model is provided with a pre-sorting device at one side of the feeding port of the withering device. Before withering, the tea leaves are fed into the vibrating screen 2 through the feeding hopper. The coarse stems in the tea leaves can be screened out by the vibration of the vibrating screen 2. The screened tea leaves are then fed into the withering device for withering processing. The pre-sorting can be performed before withering to avoid the coarse stems from being mixed in the tea leaves and participating in the withering, thereby effectively improving the quality of the tea leaves.

[0032] At the same time, the withering machine is used to heat and wither the tea leaves in the withering cylinder 4 by arranging a heater 5 on the withering cylinder 4. During the withering process, the preheated tea at the tail of the withering cylinder 4 can be drawn into the heater 5 for heating through the fan 6, and then blown into the withering cylinder 4. The residual heat from withering can be recycled to avoid heat loss, effectively reducing processing costs.

[0033] Preferably, a plurality of self-locking universal wheels 7 are evenly installed at the bottom of the frame 1 corresponding to the pre-sorting device. The self-locking universal wheels 7 are used to support the entire pre-sorting device, so that the pre-sorting device and the fixing device can be separated for easy maintenance, and can also be spliced ​​together for use, which is more convenient to use.

[0034] Preferably, the vibrating screen 2 includes a sieve body 21 with a U-shaped cross-section, the sieve body 21 is obliquely installed on the frame 1, a sieve 22 is provided in the middle of the sieve body 21, the sieve holes of the sieve 22 can facilitate the falling of tea leaves, the feed hopper 3 is located above the sieve 22, and a first driving mechanism for driving the sieve body 21 to vibrate is provided on the frame 1, the end of the sieve body 21 close to the withering device is open, which is convenient for the tea leaves to fall into the withering device, and a baffle 23 is provided at the end of the sieve 22 close to the withering device to prevent the screened coarse stems from falling into the withering device, thereby realizing the pre-sorting of tea leaves and coarse stems. Furthermore, a suspension arm 24 is provided between the top of the screen body 21 and the frame 1, and the two ends of the suspension arm 24 are rotatably connected to the screen body 21 and the frame 1 respectively. A support wheel 25 is rotatably installed on the bottom end of the screen body 21, and the support wheel 25 is rollingly installed on the frame 1; the first driving mechanism includes a first driving motor 26, and the output end of the first driving motor 26 is connected to the top of the screen body 21 through a crank rocker mechanism 27.

[0035] When the vibrating screen in this embodiment is in use, the first drive motor 26 works, and the top of the screen body 21 is driven to move up and down through the crank rocker mechanism 27, and the screen body 21 slides on the frame 1 through the support wheel 25. At this time, the tea leaves can be thrown up and move downward along the screen body 21. After multiple vibrations, the tea leaves can pass through the sieve holes of the screen 22 and fall to the bottom of the screen body 21, while the coarse stems continue to remain on the top of the screen 22, thereby realizing the pre-sorting of the tea leaves, and the pre-sorting efficiency is higher.

[0036] Preferably, a plurality of combing plates 28 are provided on the top of the screen 22, and a plurality of parallel slots are provided on the bottom of the combing plates 28. By providing the combing plates 28 in the screen 22, the falling speed of the tea leaves can be slowed down, so that the tea leaves can only fall by being thrown over the combing plates 28, further improving the efficiency of the tea leaves passing through the screen 22, while the thick stems can fall through the slots.

[0037] Preferably, a plurality of through holes 29 are provided at the bottom of the sieve body 21, and the diameter of the through holes 29 is smaller than the diameter of the mesh holes of the sieve 22 to prevent the tea leaves from falling. Through the provision of the through holes 29, some fine sand particles in the tea leaves can fall through the through holes 29, further improving the screening effect.

[0038] Preferably, a rotating cylinder 8 is rotatably installed in the withering cylinder 4 through a bearing, and the rotating cylinder 8 can rotate relative to the withering cylinder 4. As a container for holding tea leaves, one end of the rotating cylinder 8 corresponds to the discharge port position of the pre-sorting device to ensure that the tea leaves can fall into the rotating cylinder 8. A discharge box 9 connected to the rotating cylinder 8 is provided at one end of the withering cylinder 4 away from the pre-sorting device. The bottom of the discharge box 9 is an open structure to facilitate the falling of tea leaves. The heater 5 is connected to the discharge box 9 through a pipeline to ensure that the exhaust gas in the rotating cylinder 8 can enter the heater 5. The air outlet of the fan 6 is connected to the rotating cylinder 8 to ensure that the hot air can enter the rotating cylinder 8. A second driving mechanism is provided on the withering cylinder 4 to drive the rotating cylinder 8 to rotate. Specifically, the second driving mechanism includes a second driving motor 10, wherein a gear ring 11 is provided on the rotating cylinder 8, the second driving motor 10 is installed on the outer wall of the withering cylinder 4, and the output end of the second driving motor 10 is connected to a gear, and the gear is meshed with the gear ring 11.

[0039] In this embodiment, when in use, the second drive motor 10 works, driving the gear ring 11 to rotate through the gears, and the gear ring 11 drives the rotating cylinder 8 to rotate, thereby achieving heating of the tea leaves while rotating, further improving the withering efficiency and uniformity.

[0040] Preferably, a spiral blade is further provided in the rotating cylinder 8, and the spiral blade is utilized to guide the tea leaves into the discharge box 9 for discharge.

[0041] Preferably, the inner wall of the rotating cylinder 8 and the side walls of the spiral blades are coated with a ceramic film.

[0042] The tea withering machine of the present invention can effectively improve the wear resistance and corrosion resistance of the rotating cylinder 8 and the spiral leaves and extend their service life by coating the ceramic film inside the rotating cylinder 8 and the outer wall of the spiral leaves; and effectively prevent the tea leaves from adhering to the rotating cylinder and the spiral leaves, thereby improving the quality and efficiency of withering; at the same time, the ceramic film has good thermal conductivity, which helps to transfer heat to the tea leaves quickly and evenly, so that the tea leaves are heated more evenly, thereby better achieving the withering effect and ensuring the stability of the tea quality.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A new type of pre-sorting tea leaf withering machine, including a withering device, characterized in that: It also includes a pre-sorting device, which includes a frame (1), a vibrating screen (2) and a feed hopper (3), wherein the vibrating screen (2) is mounted on the frame (1), and the feed hopper (3) is mounted on the frame (1) above the vibrating screen (2), and the discharge port of the vibrating screen (2) is located above the feed port of the fixing device; the fixing device includes a fixing tube (4), a heater (5) is provided on the top of the fixing tube (4), and a fan (6) is provided at one end of the fixing tube (4) close to the pre-sorting device, an air inlet of the fan (6) is connected to the heater (5) through a pipeline, and an air outlet of the fan (6) is connected to the inner cavity of the fixing tube (4) through a pipeline, and the heater (5) is also connected to one end of the fixing tube (4) away from the pre-sorting device through a pipeline.

2. A new type of pre-sorting tea leaf fixing machine according to claim 1, characterized in that: A plurality of self-locking universal wheels (7) are evenly mounted on the bottom of the frame (1) corresponding to the pre-sorting device.

3. A new type of pre-sorting tea leaf fixing machine according to claim 1, characterized in that: The vibrating screen (2) comprises a screen body (21) with a U-shaped cross section, the screen body (21) is obliquely mounted on a frame (1), a screen mesh (22) is provided in the middle of the screen body (21), the feed hopper (3) is located above the screen mesh (22), a first driving mechanism for driving the screen body (21) to vibrate is provided on the frame (1), the end of the screen body (21) close to the fixing device is open, and a baffle (23) is provided on the end of the screen mesh (22) close to the fixing device.

4. A new type of pre-sorting tea leaf fixing machine according to claim 3, characterized in that: A suspension arm (24) is provided between the top of the sieve body (21) and the frame (1), and the two ends of the suspension arm (24) are rotatably connected to the sieve body (21) and the frame (1) respectively; a support wheel (25) is rotatably mounted on the bottom end of the sieve body (21), and the support wheel (25) is rollingly mounted on the frame (1); the first driving mechanism comprises a first driving motor (26), and the output end of the first driving motor (26) is connected to the top of the sieve body (21) via a crank rocker mechanism (27).

5. A new type of pre-sorting tea leaf fixing machine according to claim 3, characterized in that: A plurality of comb plates (28) are provided on the top of the screen (22).

6. A new type of pre-sorting tea leaf fixing machine according to claim 3, characterized in that: The bottom of the sieve body (21) is also provided with a plurality of through holes (29), and the diameter of the through holes (29) is smaller than the diameter of the sieve holes of the sieve (22).

7. A new type of pre-sorting tea leaf fixing machine according to any one of claims 1 to 6, characterized in that: A rotating cylinder (8) is rotatably mounted in the withering cylinder (4) via a bearing, one end of the rotating cylinder (8) corresponds to the discharge port of the pre-sorting device, and an end of the withering cylinder (4) away from the pre-sorting device is provided with a discharge box (9) connected to the rotating cylinder (8), the heater (5) is connected to the discharge box (9) via a pipeline, and a second driving mechanism for driving the rotating cylinder (8) to rotate is provided on the withering cylinder (4).

8. A new type of pre-sorting tea leaf fixing machine according to claim 7, characterized in that: The second driving mechanism comprises a second driving motor (10), a gear ring (11) is provided on the rotating cylinder (8), the second driving motor (10) is installed on the outer wall of the withering cylinder (4), and the output end of the second driving motor (10) is connected to a gear, and the gear is meshed with the gear ring (11).

9. A new type of pre-sorting tea leaf fixing machine according to claim 7, characterized in that: The rotating cylinder (8) is also provided with spiral blades.

10. A new type of pre-sorting tea leaf fixing machine according to claim 9, characterized in that: The inner wall of the rotating cylinder (8) and the side walls of the spiral blades are both plated with ceramic films.

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