Multistage winnowing machine for tea leaves

Abstract

The utility model belongs to the technical field of white tea processing, and discloses a multi-stage winnowing machine for tea leaves, which comprises a main body device for collecting the tea leaves after wind classification screening, and further comprises a material shaking device which is arranged at the top of the main body device and is used for scattering the tea leaves after vibrating and shaking sundries, a feeding device for feeding and continuously dispersing and conveying tea leaves is arranged on one side above the shaking device; the material shaking device comprises a vibrating frame, a screen is installed on the vibrating frame, a waste hopper is arranged below the screen, and a vibrating shaft is installed on one side of the vibrating frame. According to the multi-stage winnowing machine for the tea leaves, due to the arrangement that the tea leaves are scattered through vibration, the situation that winnowing is affected by accumulation of the tea leaves is avoided; through the arrangement of continuous dispersing feeding and scattering, the tea leaves can pass through a winnowing area more uniformly, and the winnowing effect is improved; by arranging the vibration sieve sundries, the sundries in the tea leaves are reduced, and the quality of the tea leaves is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of white tea processing, in particular to a multi-stage air separator for tea leaves. Background Art

[0002] White tea is a slightly fermented tea and a special treasure among Chinese teas. It is named because the finished tea is mostly buds covered with white hairs, like silver and snow. It is one of the six major tea categories in China. White tea is not withered or rolled, but only processed after sun drying or slow fire drying. It has the quality characteristics of complete buds and hairs, full body, fresh hair fragrance, clear yellow-green soup color, and light and sweet taste. The main producing areas of white tea are Fuding, Zhenghe, Zherong, Xinzhou Jiujie, Wuhan, Tianshan, Songxi, Jianyang, Jinggu, Yunnan, etc. in Fujian. The general processing process of tea includes spreading, withering, sorting, shaping, lifting hairs and drying. The tea making process is relatively complicated, and after the tea leaves have gone through the drying process, further screening is required. In order to produce tea with better quality, a winnowing machine is usually used to grade and screen the tea leaves.

[0003] Comparison with the Chinese patent with the authorization announcement number CN218743229U discloses a multi-stage air separator for processing white tea, whose structure includes an air separator, a feed hopper, a discharge hopper, a blower, and an exhaust port. The feed hopper is fixedly connected to the upper end of the air separator, the discharge hopper is installed below the air separator, the blower is installed at the left end of the air separator, and the exhaust port is installed at the right end of the air separator. The exhaust port can be installed with an exhaust fan for exhaust work or a cloth bag for exhaust collection work according to the use requirements. The air separator includes a frame, a material guide platform, a material dividing plate, a material guide valve, a material baffle plate, and a storage box. The material guide platform is equidistantly distributed at the upper end of the frame, the material dividing plate is horizontally installed on the upper end of the frame, the material guide valve is fixed under the material dividing plate, the material baffle plate is vertically installed at the right end of the frame, and the material baffle plate is vertically installed through a notch on the upper surface of the frame end. The storage box is horizontally installed at the bottom of one side of the frame, and the storage box and the material guide platform are installed together by sliding fit.

[0004] The above patent adopts gravity drop method for loading, which cannot disperse the tea leaves well during loading, and the tea leaves accumulate together, which will affect the winnowing effect. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage air separator for tea to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-stage wind separator for tea leaves, comprising a main body device for collecting tea leaves after wind classification screening, and a material shaking device installed on the top of the main body device for vibrating and shaking tea leaves to disperse fallen materials and vibrate and sieve debris, and a feeding device for feeding and continuously dispersing and conveying tea leaves is arranged on one side above the material shaking device;

[0008] The material shaking device includes a vibration frame, a screen is installed on the vibration frame, a waste hopper is arranged below the screen, a vibration shaft is installed on one side of the vibration frame, a buffer block is arranged below the side of the vibration frame away from the vibration shaft, a cam is arranged below the buffer block, a rotating shaft is installed in the cam, and a vibration motor is installed at the rear end of the rotating shaft.

[0009] Furthermore: the main device includes a frame, a fan is arranged on one side of the frame, an air outlet duct is arranged on the side of the frame away from the fan, four material guide platforms are evenly arranged between the fan and the air outlet duct, a lower hopper is arranged between two adjacent material guide platforms, and a collection box is arranged under the lower hopper.

[0010] Furthermore: the feeding device includes a conveying frame, a conveying belt is installed at the bottom of the conveying frame, a conveying motor is arranged in front of the conveying belt, and a feeding hopper is arranged on one side above the conveying belt.

[0011] Furthermore: the waste hopper is arranged at an angle, and a waste box is arranged at the lower front side of the waste hopper.

[0012] Furthermore: the top of the material guiding platform is conical, and the lower hopper is inclined.

[0013] Furthermore: the feed hopper is connected to the conveying frame by bolts.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. Vibrate and shake the tea leaves to avoid accumulation of tea leaves that may affect winnowing;

[0016] 2. Through the setting of continuous dispersed feeding and dispersed dropping, the tea leaves can pass through the wind selection area more evenly, thus improving the wind selection effect;

[0017] 3. Through the setting of vibration sifting debris, the debris in the tea leaves is reduced and the quality of the tea leaves is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a multi-stage air separator for tea leaves described in the utility model;

[0019] Figure 2 This is an axonometric diagram of the main device of a multi-stage winnowing machine for tea leaves described in the utility model;

[0020] Figure 3 It is a front view of a material shaking device of a multi-stage winnowing machine for tea leaves described in the utility model;

[0021] Figure 4 It is an axonometric diagram of a feeding device of a multi-stage air separator for tea leaves described in the utility model.

[0022] In the accompanying drawings, 101, frame; 102, fan; 103, air outlet duct; 104, material guide table; 105, lower hopper; 106, collecting box; 201, vibration frame; 202, screen; 203, waste hopper; 204, waste box; 205, vibration shaft; 206, buffer block; 207, cam; 208, rotating shaft; 209, vibration motor; 301, conveying frame; 302, conveyor belt; 303, conveying motor; 304, feed hopper. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 A multi-stage air separator for tea, including a main device for collecting tea leaves after wind classification and screening, and also includes a shaking device installed on the top of the main device for vibrating and shaking the tea leaves to disperse the fallen materials and vibrate and screen the debris. A feeding device for feeding and continuously dispersing and conveying tea leaves is arranged on one side above the shaking device.

[0025] In this embodiment: the main device includes a frame 101, a fan 102 is arranged on one side of the frame 101, an air outlet duct 103 is arranged on the side of the frame 101 away from the fan 102, four material guide platforms 104 are evenly arranged between the fan 102 and the air outlet duct 103, a lower hopper 105 is arranged between two adjacent material guide platforms 104, a collecting box 106 is arranged below the lower hopper 105, the top of the material guide platform 104 is conical, and the lower hopper 105 is inclined. When the tea leaves fall to the air outlet side of the fan 102, the fan 102 blows air to sort the tea leaves, and blows tea leaves of different grades to the top of different lower hoppers 105, and slides through the lower hoppers 105 between the material guide platforms 104 to different collecting boxes 106 to complete air selection, and the remaining air from the air selection is discharged through the air outlet duct 103;

[0026] In this embodiment, the material shaking device includes a vibration frame 201, a screen 202 is installed on the vibration frame 201, a waste hopper 203 is arranged below the screen 202, a vibration shaft 205 is installed on one side of the vibration frame 201, a buffer block 206 is arranged below the side of the vibration frame 201 away from the vibration shaft 205, a cam 207 is arranged below the buffer block 206, a rotating shaft 208 is installed in the cam 207, a vibration motor 209 is installed at the rear end of the rotating shaft 208, the waste hopper 203 is inclined, a waste box 204 is arranged below the front side of the waste hopper 203, and a feeding device 206 is arranged below the front side of the waste hopper 203. The tea leaves are continuously conveyed to the screen 202, and at the same time, the vibration motor 209 drives the rotating shaft 208 to drive the cam 207 to rotate, so that the cam 207 continuously hits the buffer block 206, so that the buffer block 206 drives the vibration frame 201 to continuously vibrate around the vibration shaft 205, and the tea leaves are continuously shaken to one side of the vibration shaft 205 to be shaken apart, and at the same time, the sundries inside are shaken through the screen 202 to the waste hopper 203, and then slide into the waste box 204 for collection. After the tea leaves are vibrated and screened, they will fall from one side of the vibration frame 201 to the air outlet side of the fan 102;

[0027] In this embodiment: the feeding device includes a conveying frame 301, a conveying belt 302 is installed at the bottom of the conveying frame 301, a conveying motor 303 is arranged in front of the conveying belt 302, and a feeding hopper 304 is arranged on one side above the conveying belt 302. The feeding hopper 304 is bolted to the conveying frame 301. The white tea leaves are poured into the feeding hopper 304, so that they fall onto the conveying belt 302 through the feeding hopper 304. At the same time, the conveying frame 301 supports the conveying motor 303 to drive the conveying belt 302 to continuously transport the tea leaves to the screen 202.

[0028] Working principle: Pour white tea leaves into the feed hopper 304, and let them fall onto the conveyor belt 302 through the feed hopper 304. At the same time, the conveyor frame 301 supports the conveying motor 303 to drive the conveyor belt 302 to continuously convey the tea leaves to the screen 202. Then the vibration motor 209 drives the rotating shaft 208 to drive the cam 207 to rotate, so that the cam 207 continuously hits the buffer block 206, so that the buffer block 206 drives the vibration frame 201 to continuously vibrate around the vibration shaft 205, and the tea leaves are continuously shaken to one side of the vibration shaft 205. , shake it loose, and at the same time make the internal debris fall through the screen 202 into the waste hopper 203, and slide into the waste box 204 for collection. After the tea leaves are vibrated and screened, they will fall from one side of the vibration frame 201 to the air outlet side of the fan 102. At this time, the fan 102 blows air to sort the tea leaves, and blows tea leaves of different grades to different lower hoppers 105, and slides through the lower hoppers 105 between the guide platforms 104 to different collection boxes 106, completing the air selection, and the remaining air from the air selection is discharged through the air outlet pipe 103.

[0029] 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 multi-stage wind separator for tea, comprising a main device for collecting tea leaves after wind classification screening, characterized in that: It also includes a shaking device installed on the top of the main device for vibrating and shaking the tea leaves to disperse the fallen tea leaves and sieve the debris. A feeding device for feeding and continuously dispersing and conveying the tea leaves is provided on one side above the shaking device. The material shaking device comprises a vibration frame (201), a screen (202) is installed on the vibration frame (201), a waste hopper (203) is arranged below the screen (202), a vibration shaft (205) is installed on one side of the vibration frame (201), a buffer block (206) is arranged below the side of the vibration frame (201) away from the vibration shaft (205), a cam (207) is arranged below the buffer block (206), a rotating shaft (208) is installed in the cam (207), and a vibration motor (209) is installed at the rear end of the rotating shaft (208).

2. A multi-stage air separator for tea according to claim 1, characterized in that: The main device comprises a frame (101), a fan (102) is arranged on one side of the frame (101), an air outlet pipe (103) is arranged on the side of the frame (101) away from the fan (102), four material guide platforms (104) are evenly arranged between the fan (102) and the air outlet pipe (103), a lower hopper (105) is arranged between two adjacent material guide platforms (104), and a collection box (106) is arranged below the lower hopper (105).

3. A multi-stage air separator for tea according to claim 1, characterized in that: The feeding device comprises a conveying frame (301), a conveying belt (302) is installed at the bottom of the conveying frame (301), a conveying motor (303) is arranged in front of the conveying belt (302), and a feeding hopper (304) is arranged on one side above the conveying belt (302).

4. A multi-stage air separator for tea according to claim 1, characterized in that: The waste hopper (203) is arranged at an angle, and a waste box (204) is arranged at the lower front side of the waste hopper (203).

5. A multi-stage air separator for tea according to claim 2, characterized in that: The top of the material guide platform (104) is conical, and the lower hopper (105) is inclined.

6. A multi-stage air separator for tea according to claim 3, characterized in that: The feed hopper (304) is bolted to the conveying frame (301).

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