A drum-type black tea fermentation device

Abstract

The present invention relates to the technical field of black tea processing, and discloses a drum-type black tea fermentation device, comprising a base, a vertical plate fixedly mounted on the upper part of the base, a top plate fixedly mounted on the upper part of the vertical plate, a fan fixedly mounted on the upper part of the top plate, a mounting plate arranged on the upper part of the base, a vertical drum arranged on the upper part of the mounting plate, and a connecting assembly arranged on the upper part of the base, wherein the connecting assembly comprises a stirring mechanism arranged on the upper part of the base, a rotating mechanism is arranged on the upper part of the base, a filtering mechanism is arranged on the upper part of the base, a feeding port and an air outlet are connected to the top of the vertical drum respectively, a discharge pipe is connected to the bottom of the vertical drum, and an electric control valve is arranged at the lower part of the discharge pipe. The present invention solves the problem that the existing device has a poor stirring effect on tea leaves, thereby affecting the contact effect between tea leaves and oxygen, and at the same time affecting the heating uniformity of tea leaves, thereby affecting the fermentation effect of tea leaves.

Description

Technical Field

[0001] The invention relates to the technical field of black tea processing, in particular to a drum-type black tea fermentation device. Background Art

[0002] Traditional black tea fermentation generally involves placing the rolled tea leaves in a fermentation tank or fermentation room, maintaining the corresponding temperature and humidity, increasing the temperature and humidity of the fermented leaves, and promoting the moist heat effect of the tea leaves and the Maillard reaction.

[0003] According to a drum-type black tea fermentation device disclosed in patent announcement No. CN 216018917 U, the device adopts a vertical drum to make the tea leaves accumulate in the drum, which is not easy for the water to evaporate quickly, and can ensure the humidity requirement of tea fermentation and improve the tea fermentation effect; however, the device has a poor stirring effect on the tea leaves, thereby affecting the contact effect between the tea leaves and oxygen, and at the same time affecting the uniformity of heating of the tea leaves, thereby affecting the fermentation effect of the tea leaves.

[0004] Therefore, we proposed a drum-type black tea fermentation device to solve the problem. Summary of the invention

[0005] The purpose of the present invention is to provide a drum-type black tea fermentation device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a drum-type black tea fermentation device, comprising a base; A vertical plate fixedly mounted on the upper part of the base; A top plate fixedly mounted on the upper part of the vertical plate; A fan fixedly mounted on the upper part of the top plate; A mounting plate disposed on the upper portion of the base; A vertical roller disposed on the upper portion of the mounting plate; And a connecting component arranged on the upper part of the base, the connecting component includes a stirring mechanism arranged on the upper part of the base, a rotating mechanism is arranged on the upper part of the base, a filtering mechanism is arranged on the upper part of the base, a feeding port and an air outlet are respectively connected to the top of the vertical drum, a discharge pipe is connected to the bottom of the vertical drum, and an electric-controlled valve is arranged at the lower part of the discharge pipe.

[0007] Preferably, the stirring mechanism includes a motor fixedly mounted on the upper part of the mounting plate through a mounting frame, the output end of the motor is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to a driving wheel, the driving wheel is rotatably connected to a transmission belt, the interior of the vertical roller is rotatably connected to a rotating tube through a bearing, the top of the rotating tube is fixedly connected to a driven wheel, the outer wall of the rotating tube is fixedly connected to a stirring rod, the outer wall of the rotating tube is provided with a through hole, and a heating plate is fixedly mounted on the inner wall of the vertical roller.

[0008] Preferably, the rotating mechanism includes a gear fixedly connected to the outer wall of the rotating shaft, the outer wall of the vertical roller is fixedly connected to a tooth block, the outer wall of the vertical roller is fixedly connected to a pressure rod through a rotating rod, the inner wall of the vertical plate is fixedly connected to an inclined pressure block through a fixed plate, the inner wall of the vertical plate is provided with a first slide groove, the inner wall of the first slide groove is fixedly connected to a first slide bar, the outer wall of the first slide bar is slidably connected to a first slider, the inner wall of the first slide groove is fixedly connected to a first spring, the upper part of the mounting plate is provided with an annular groove, the inner wall of the annular groove is slidably connected to a connecting block, a ball bearing is provided at the bottom of the connecting block, and the upper part of the connecting block is fixedly connected to a supporting plate.

[0009] Preferably, the filtering mechanism includes a connecting sleeve rotatably connected to the outside of the rotating tube through a bearing, a telescopic tube is connected to the upper part of the connecting sleeve, a processing box is fixedly installed on the upper part of the top plate, a mounting groove is provided inside the processing box, a mounting frame is inserted inside the groove, a filter plate is fixedly installed inside the mounting frame, a sealing ring is fixedly connected to the inner wall of the processing box, a second sliding groove is provided on the outer wall of the processing box, a second sliding rod is fixedly connected to the inner wall of the second sliding groove, a second slider is slidably connected to the outer wall of the second sliding rod, a second spring is fixedly connected to the inner wall of the second sliding groove, and a limiting rod is fixedly connected to the outer side of the second slider.

[0010] Preferably, the top end of the rotating tube is connected to the connecting sleeve, and the transmission belt is rotatably connected to the driven wheel. Through the cooperation of the motor, the rotating shaft, the driving wheel, the transmission belt, the rotating tube, the driven wheel, the stirring rod, the through hole and the heating plate, the tea leaves in the vertical drum can be oxygenated, and the tea leaves can be fermented in a certain temperature and humidity environment, and the tea leaves can be stirred, so that the tea leaves can be better contacted with oxygen, and the tea leaves can be heated evenly, so that the fermentation effect of the tea leaves can be better.

[0011] Preferably, the gear is meshed with the tooth block, the top of the support plate is fixedly connected to the vertical roller, and the connecting block is limited to slide in the annular groove. Through the cooperation of the gear, the tooth block, the pressure rod, the inclined pressure block, the first slide groove, the first slide rod, the first slider, the first spring, the annular groove, the connecting block, the ball bearing and the support plate, the vertical roller can be rotated, and the rotation direction is opposite to the rotation direction of the stirring rod, so that the tea leaves can be better stirred. At the same time, when the vertical roller rotates, the pressure rod and the inclined pressure block can be pressed against each other, so that the vertical roller can reciprocate up and down, thereby further enhancing the stirring effect on the tea leaves, so that the tea leaves can be better contacted with oxygen and heated more evenly, so that the fermentation effect can be better.

[0012] Preferably, one end of the first spring is fixedly connected to the first slider, and the outer side of the first slider is fixedly connected to the mounting plate.

[0013] Preferably, the top end of the telescopic tube is connected to the output end of the fan, the right side of the processing box is connected to the input end of the fan through a connecting tube, the sealing ring is arranged at the gap between the mounting frame and the mounting groove, one end of the second spring is fixedly connected to the second slider, the inner side of the limit rod is fitted with the outer side of the mounting frame, and the oxygen introduced into the vertical drum can be filtered through the cooperation of the telescopic tube, the connecting sleeve, the processing box, the mounting frame, the filter plate, the sealing ring, the second slide groove, the second slide rod, the second slider, the second spring and the limit rod, so as to prevent impurities in the oxygen from adhering to the rotating tube and affecting the subsequent oxygen delivery effect, and the filter plate is easy to be disassembled and cleaned manually, so as to prevent the filter holes of the filter plate from being blocked and affecting the air intake effect.

[0014] The present invention provides a drum-type black tea fermentation device. The drum-type black tea fermentation device has the following beneficial effects: (1) The drum-type black tea fermentation device, by providing a stirring mechanism, can supply oxygen to the tea leaves in the vertical drum under the action of the motor, rotating shaft, driving wheel, transmission belt, rotating tube, driven wheel, stirring rod, through hole and heating plate, so that the tea leaves can be fermented in a certain temperature and humidity environment, and the tea leaves can be stirred, so that the tea leaves can be better contacted with oxygen, and the tea leaves can be heated evenly, so that the fermentation effect of the tea leaves can be better; (2) The drum-type black tea fermentation device, by providing a rotating mechanism, can make the vertical drum rotate under the action of the gear, the gear block, the pressure rod, the inclined pressure block, the first slide groove, the first slide rod, the first slider, the first spring, the annular groove, the connecting block, the ball bearing, and the support plate, and the rotation direction is opposite to the rotation direction of the stirring rod, so that the tea leaves can be stirred better. At the same time, when the vertical drum rotates, the pressure rod and the inclined pressure block can be pressed against each other, so that the vertical drum can reciprocate up and down, thereby further enhancing the stirring effect of the tea leaves, making the tea leaves more in contact with oxygen and heated more evenly, so that the fermentation effect can be better. (3) The drum-type black tea fermentation device can filter the oxygen introduced into the vertical drum by arranging a filtering mechanism under the action of the telescopic tube, the connecting sleeve, the processing box, the mounting frame, the filter plate, the sealing ring, the second slide groove, the second slide rod, the second slider, the second spring and the limit rod, thereby preventing impurities in the oxygen from adhering to the rotating tube and affecting the subsequent oxygen delivery effect. The filter plate is easy to be disassembled and cleaned manually, thereby preventing the filter holes of the filter plate from being blocked and affecting the air intake effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3This is a schematic diagram of the stirring mechanism structure of the present invention; Figure 4 It is a schematic diagram of the structure of the rotating mechanism of the present invention; Figure 5 It is a schematic diagram of the local structure of the rotating mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the filtering mechanism of the present invention; In the figure: 1, base; 2, vertical plate; 3, connecting assembly; 31, stirring mechanism; 311, motor; 312, rotating shaft; 313, driving wheel; 314, transmission belt; 315, rotating tube; 316, driven wheel; 317, stirring rod; 318, through hole; 319, heating plate; 32, rotating mechanism; 321, gear; 322, gear block; 323, pressing rod; 324, inclined pressing block; 325, first slide groove; 326, first slide rod; 327, first slide block; 32 8. first spring; 329. annular groove; 3210. connecting block; 3211. ball bearing; 3212. support plate; 33. filtering mechanism; 331. telescopic tube; 332. connecting sleeve; 333. processing box; 334. mounting frame; 335. filter plate; 336. sealing ring; 337. second slide groove; 338. second slide rod; 339. second slide block; 3310. second spring; 3311. limiting rod; 4. top plate; 5. fan; 6. mounting plate; 7. vertical roller. DETAILED DESCRIPTION

[0016] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0017] Example 1 like Figure 1-6As shown, the present invention provides a technical solution: a drum-type black tea fermentation device, comprising a base 1, a vertical plate 2 fixedly mounted on the upper part of the base 1, a top plate 4 fixedly mounted on the upper part of the vertical plate 2, a fan 5 fixedly mounted on the upper part of the top plate 4, a mounting plate 6 arranged on the upper part of the base 1, a vertical drum 7 arranged on the upper part of the mounting plate 6, and a connecting assembly 3 arranged on the upper part of the base 1, the connecting assembly 3 comprising a stirring mechanism 31 arranged on the upper part of the base 1, a rotating mechanism 32 arranged on the upper part of the base 1, a filtering mechanism 33 arranged on the upper part of the base 1, a feeding port and an air outlet are respectively connected at the top of the vertical drum 7, and the vertical drum 7 A discharge pipe is provided at the bottom, and an electric-controlled valve is provided at the lower part of the discharge pipe. The stirring mechanism 31 includes a motor 311 fixedly mounted on the upper part of the mounting plate 6 through a mounting frame. A rotating shaft 312 is fixedly connected to the output end of the motor 311. The rotating shaft 312 is rotatably connected to a driving wheel 313. The driving wheel 313 is rotatably connected to a transmission belt 314. A rotating tube 315 is rotatably connected to the inside of the vertical drum 7 through a bearing. A driven wheel 316 is fixedly connected to the top of the rotating tube 315. A stirring rod 317 is fixedly connected to the outer wall of the rotating tube 315. A through hole 318 is opened on the outer wall of the rotating tube 315. A heating plate 319 is fixedly installed on the inner wall of the vertical drum 7.

[0018] In this embodiment, the top end of the rotating tube 315 is connected to the connecting sleeve 332, and the transmission belt 314 is rotatably connected to the driven wheel 316. Through the cooperation of the motor 311, the rotating shaft 312, the driving wheel 313, the transmission belt 314, the rotating tube 315, the driven wheel 316, the stirring rod 317, the through hole 318, and the heating plate 319, the tea leaves in the vertical drum 7 can be oxygenated, and the tea leaves can be fermented in a certain temperature and humidity environment. The tea leaves can also be stirred, so that the tea leaves can be better in contact with oxygen, and the tea leaves can be heated evenly, so that the fermentation effect of the tea leaves can be better.

[0019] When the device is in use, tea leaves are first added into the vertical drum 7 from the feeding port manually, and then the motor 311 is turned on. The motor 311 drives the rotating shaft 312 to rotate. Under the action of the driving wheel 313, the transmission belt 314, and the driven wheel 316, the rotating tube 315 can be rotated synchronously, so that the stirring rod 317 fixedly connected to the outer wall of the rotating tube 315 can be rotated synchronously, and then the tea leaves in the vertical drum 7 can be stirred. The tea leaves can be heated by the heating plate 319. At the same time, external oxygen can be introduced into the telescopic tube 331 through the fan 5, and then introduced into the rotating tube 315 through the connecting sleeve 332, and finally discharged outwardly from the through hole 318, so that the tea leaves can be fermented in a certain temperature and humidity environment. At the same time, by stirring the tea leaves, the contact effect between the tea leaves and oxygen can be better, and the tea leaves can be heated evenly, so that the fermentation effect of the tea leaves can be better.

[0020] Example 2 Based on Example 1, a preferred embodiment of a drum-type black tea fermentation device provided by the present invention is as follows Figures 1 to 6 As shown: the rotating mechanism 32 includes a gear 321 fixedly connected to the outer wall of the rotating shaft 312, a tooth block 322 is fixedly connected to the outer wall of the vertical roller 7, a pressure rod 323 is fixedly connected to the outer wall of the vertical roller 7 through a rotating rod, an inclined pressure block 324 is fixedly connected to the inner wall of the vertical plate 2 through a fixed plate, a first slide groove 325 is provided on the inner wall of the vertical plate 2, a first slide rod 326 is fixedly connected to the inner wall of the first slide groove 325, a first slider 327 is slidably connected to the outer wall of the first slide rod 326, a first spring 328 is fixedly connected to the inner wall of the first slide groove 325, an annular groove 329 is provided on the upper part of the mounting plate 6, a connecting block 3210 is slidably connected to the inner wall of the annular groove 329, a ball 3211 is provided at the bottom of the connecting block 3210, and a support plate 3212 is fixedly connected to the upper part of the connecting block 3210.

[0021] The gear 321 is meshed with the tooth block 322, the top of the support plate 3212 is fixedly connected to the vertical roller 7, and the connecting block 3210 is limited to slide in the annular groove 329. Through the cooperation of the gear 321, the tooth block 322, the pressure rod 323, the inclined pressure block 324, the first slide groove 325, the first slide bar 326, the first slider 327, the first spring 328, the annular groove 329, the connecting block 3210, the ball 3211, and the support plate 3212, the vertical roller 7 can be rotated, and the rotation direction is opposite to the rotation direction of the stirring rod 317, so that the tea leaves can be better stirred. At the same time, when the vertical roller 7 rotates, the pressure rod 323 and the inclined pressure block 324 can be pressed, so that the vertical roller 7 can reciprocate up and down, thereby further enhancing the stirring effect on the tea leaves, so that the tea leaves can be better contacted with oxygen and heated more evenly, so that the fermentation effect can be better.

[0022] Furthermore, one end of the first spring 328 is fixedly connected to the first slider 327 , and the outer side of the first slider 327 is fixedly connected to the mounting plate 6 .

[0023] When the rotating shaft 312 rotates, the gear 321 fixedly connected to the outer wall of the rotating shaft 312 can be rotated. Since the gear 321 is meshed with the tooth block 322, and under the action of the connecting block 3210, the annular groove 329, and the supporting plate 3212, the vertical roller 7 fixedly connected to the upper part of the supporting plate 3212 can be rotated. At the same time, under the action of the ball 3211, the relative friction between the supporting plate 3212 and the mounting plate 6 can be reduced, so that the vertical roller 7 can rotate more smoothly, and the wear between the gear 321 and the tooth block 322 can be reduced, thereby extending the service life of the parts. The vertical roller 7 can move, thereby achieving a better stirring effect on the tea leaves, and when the vertical roller 7 rotates, the pressing rod 323 can be pressed against the inclined pressing block 324, and under the action of the first sliding rod 326 and the first sliding block 327, the mounting plate 6 fixedly connected to the outer side of the first sliding block 327 can be moved downward. Since the connecting block 3210 is limited and slides in the annular groove 329, the vertical roller 7 can be moved downward synchronously, and then the stirring rod 317 and the tea leaves can be moved relative to each other, which can achieve a better stirring effect on the tea leaves, thereby achieving a better contact effect between the tea leaves and the oxygen and the heating plate 319, and then achieving a better fermentation effect of the tea leaves.

[0024] Example 3 Based on Example 1, a preferred embodiment of a drum-type black tea fermentation device provided by the present invention is as follows Figures 1 to 6 As shown: the filtering mechanism 33 includes a connecting sleeve 332 rotatably connected to the outside of the rotating tube 315 through a bearing, a telescopic tube 331 is connected to the upper part of the connecting sleeve 332, a processing box 333 is fixedly installed on the upper part of the top plate 4, a mounting groove is provided inside the processing box 333, a mounting frame 334 is inserted into the groove, a filter plate 335 is fixedly installed inside the mounting frame 334, a sealing ring 336 is fixedly connected to the inner wall of the processing box 333, a second sliding groove 337 is provided on the outer wall of the processing box 333, a second sliding rod 338 is fixedly connected to the inner wall of the second sliding groove 337, a second sliding block 339 is slidably connected to the outer wall of the second sliding rod 338, a second spring 3310 is fixedly connected to the inner wall of the second sliding groove 337, and a limiting rod 3311 is fixedly connected to the outer side of the second sliding block 339.

[0025] In this embodiment, the top of the telescopic tube 331 is connected to the output end of the fan 5, the right side of the processing box 333 is connected to the input end of the fan 5 through a connecting pipe, the sealing ring 336 is arranged at the gap between the mounting frame 334 and the mounting groove, one end of the second spring 3310 is fixedly connected to the second slider 339, the inner side of the limiting rod 3311 is fitted with the outer side of the mounting frame 334, and the oxygen introduced into the vertical drum 7 can be filtered through the cooperation of the telescopic tube 331, the connecting sleeve 332, the processing box 333, the mounting frame 334, the filter plate 335, the sealing ring 336, the second slide groove 337, the second slide bar 338, the second slide bar 339, the second spring 3310, and the limiting rod 3311, so as to prevent impurities in the oxygen from adhering to the rotating tube 315 and affecting the subsequent oxygen delivery effect, and the filter plate 335 is easy to be disassembled and cleaned manually, so as to prevent the filter holes of the filter plate 335 from being blocked and affecting the air intake effect.

[0026] When oxygen needs to be introduced, firstly, the external oxygen is introduced into the processing box 333, and then the oxygen in the processing box 333 can be transported to the telescopic tube 331 through the fan 5, and then discharged from the through hole 318 through the connecting sleeve 332 and the rotating tube 315, so that the vertical drum 7 can be treated with oxygen, and when the oxygen passes through the processing box 333, the oxygen introduced can be filtered under the action of the filter plate 335, so as to prevent impurities in the oxygen from adhering to the inner wall of the rotating tube 315 and the through hole 318, which will affect the subsequent Furthermore, when the filter plate 335 needs to be disassembled, the limiting rod 3311 only needs to be pushed manually. Under the action of the second sliding rod 338 and the second sliding block 339, the limiting rod 3311 fixedly connected to the outer side of the second sliding block 339 can be moved away from the outer side of the mounting frame 334. Then, the mounting frame 334 can be taken out manually, so as to facilitate manual cleaning of the filter plate 335 fixedly installed inside the mounting frame 334, and prevent the filter holes of the filter plate 335 from being blocked, which affects the subsequent use.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum-type black tea fermentation device, comprising a base (1); A vertical plate (2) fixedly mounted on the upper portion of the base (1); A top plate (4) fixedly mounted on the upper portion of the vertical plate (2); A fan (5) fixedly mounted on the upper portion of the top plate (4); A mounting plate (6) disposed on the upper portion of the base (1); A vertical roller (7) disposed on the upper portion of the mounting plate (6); and a connecting assembly (3) arranged on the upper part of the base (1), characterized in that: The connecting assembly (3) comprises a stirring mechanism (31) arranged on the upper part of the base (1), a rotating mechanism (32) is arranged on the upper part of the base (1), a filtering mechanism (33) is arranged on the upper part of the base (1), a feeding port and an air outlet are respectively connected to the top of the vertical drum (7), a discharge pipe is connected to the bottom of the vertical drum (7), and an electric control valve is arranged at the lower part of the discharge pipe.

2. The drum-type black tea fermentation device according to claim 1, characterized in that: The stirring mechanism (31) comprises a motor (311) fixedly mounted on the upper part of the mounting plate (6) via a mounting frame; the output end of the motor (311) is fixedly connected to a rotating shaft (312); the rotating shaft (312) is rotatably connected to a driving wheel (313); the driving wheel (313) is rotatably connected to a transmission belt (314); a rotating tube (315) is rotatably connected to the interior of the vertical roller (7) via a bearing; a driven wheel (316) is fixedly connected to the top of the rotating tube (315); a stirring rod (317) is fixedly connected to the outer wall of the rotating tube (315); a through hole (318) is provided on the outer wall of the rotating tube (315); and a heating plate (319) is fixedly mounted on the inner wall of the vertical roller (7).

3. The drum-type black tea fermentation device according to claim 1, characterized in that: The rotating mechanism (32) comprises a gear (321) fixedly connected to the outer wall of the rotating shaft (312); a gear block (322) is fixedly connected to the outer wall of the vertical roller (7); a pressure rod (323) is fixedly connected to the outer wall of the vertical roller (7) via a rotating rod; an inclined pressure block (324) is fixedly connected to the inner wall of the vertical plate (2) via a fixing plate; a first sliding groove (325) is provided on the inner wall of the vertical plate (2); and a first sliding rod (323) is fixedly connected to the inner wall of the first sliding groove (325). 326), the outer wall of the first sliding rod (326) is slidably connected to a first sliding block (327), the inner wall of the first sliding groove (325) is fixedly connected to a first spring (328), an annular groove (329) is provided on the upper part of the mounting plate (6), a connecting block (3210) is slidably connected to the inner wall of the annular groove (329), a ball bearing (3211) is provided at the bottom of the connecting block (3210), and a support plate (3212) is fixedly connected to the upper part of the connecting block (3210).

4. The drum-type black tea fermentation device according to claim 1, characterized in that: The filtering mechanism (33) comprises a connecting sleeve (332) rotatably connected to the outside of the rotating tube (315) via a bearing, the upper part of the connecting sleeve (332) being connected to a telescopic tube (331), the upper part of the top plate (4) being fixedly mounted with a processing box (333), the interior of the processing box (333) being provided with a mounting groove, the interior of which is plugged with a mounting frame (334), the interior of which is fixedly mounted with a filter plate (335), the inner wall of the processing box (333) being fixedly connected with a sealing ring (336), the outer wall of the processing box (333) being provided with a second sliding groove (337), the inner wall of the second sliding groove (337) being fixedly connected with a second sliding rod (338), the outer wall of the second sliding rod (338) being slidably connected with a second sliding block (339), the inner wall of the second sliding groove (337) being fixedly connected with a second spring (3310), and the outer side of the second sliding block (339) being fixedly connected with a limiting rod (3311).

5. The drum-type black tea fermentation device according to claim 2, characterized in that: The top end of the rotating tube (315) is connected to the connecting sleeve (332), and the transmission belt (314) is rotationally connected to the driven wheel (316).

6. The drum-type black tea fermentation device according to claim 3, characterized in that: The gear (321) is meshed with the tooth block (322), the top of the support plate (3212) is fixedly connected to the vertical roller (7), and the connection block (3210) is limitedly slidable in the annular groove (329).

7. The drum-type black tea fermentation device according to claim 3, characterized in that: One end of the first spring (328) is fixedly connected to the first slider (327), and the outer side of the first slider (327) is fixedly connected to the mounting plate (6).

8. The drum-type black tea fermentation device according to claim 4, characterized in that: The top end of the telescopic tube (331) is connected to the output end of the fan (5), the right side of the processing box (333) is connected to the input end of the fan (5) via a connecting tube, the sealing ring (336) is arranged at the gap between the mounting frame (334) and the mounting groove, one end of the second spring (3310) is fixedly connected to the second slider (339), and the inner side of the limit rod (3311) is arranged to fit the outer side of the mounting frame (334).

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