Tea stalk removing and sorting machine

Abstract

The utility model relates to the technical field of tea production equipment, in particular to a tea stalk removing and sorting machine which comprises a rack and a vibration sorting bed obliquely arranged on the rack. A through groove parallel to the advancing direction of tea leaves is formed in the sorting surface of the vibration sorting bed, and the size of the through groove is matched with that of tea stems; a plurality of sorting plates parallel to the sorting surface of the sorting bed are arranged above the vibration sorting bed, and the distances between the sorting plates and the sorting surface are gradually reduced in the advancing direction of the tea leaves. The tea leaf sorting device has the advantages that sorting plate sorting and electrostatic sorting are combined for use, the accuracy is high, the mistaken sorting rate is low, tea leaf stirring is little, and the breakage rate is low. The tea can be cyclically sorted for multiple times according to needs, and the overall quality of the sorted tea is easy to control according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of tea production equipment, in particular to a tea stalk removing and sorting machine. Background Art

[0002] During the processing of white tea, sorting out tea stalks from tea leaves is an important process in the tea refining process. Among them, manual sorting has low work efficiency, and the efficiency of using electrostatic sorting and vibration sorting alone is also low and the impurity removal is not thorough enough.

[0003] A Chinese utility model with the application number 202022414301.2, a white tea electrostatic impurity removal device, includes a frame, a feeding chute, a sieve mesh, a tea stalk chute, an electrostatic roller, a scraper and an impurity chute; the feeding chute is inclined and fixedly connected to the frame; the sieve mesh is arc-shaped and connected to the bottom end of the feeding chute; the tea stalk chute is fixedly connected to the bottom end of the frame and is located below the sieve mesh; the electrostatic roller is rotatably connected to the frame, the electrostatic roller is located above the sieve mesh, and the rotating shaft of the electrostatic roller is collinear with the central axis of the sieve mesh. The electrostatic roller of the above technical solution can repeatedly stir the tea leaves located in the sieve mesh, so that the residual tea and tea stalks are sieved out by the sieve mesh together, but the sorting accuracy is low, the tea leaf breakage rate is high, and the appearance of the finished tea after white tea refining is not complete enough. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a tea stalk removing and sorting machine with high sorting efficiency and accuracy, which can greatly improve the quality of tea.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is to provide a tea stalk removing and sorting machine, which includes a frame and a vibration sorting bed inclined on the frame; the vibration sorting bed is connected to a driving device;

[0006] A through groove parallel to the advancing direction of the tea leaves is arranged on the sorting surface of the vibration sorting bed, and the size of the through groove is adapted to the tea stalks; a plurality of sorting plates parallel to the sorting surface of the sorting bed are arranged above the vibration sorting bed, and the distances between the plurality of sorting plates and the sorting surface gradually decrease along the advancing direction of the tea leaves;

[0007] The included angle between the sorting plate and the advancing direction of the tea leaves is an acute angle, one end of the sorting plate is connected to the side wall of the vibration sorting bed, and the other end is connected to the discharge port;

[0008] An electrostatic sorting component is arranged at the discharge end of the vibration sorting bed.

[0009] The beneficial effects of the present utility model are as follows: The tea stalk removing and sorting machine of the present utility model utilizes the characteristics of tea leaves and tea stalks. For example, tea leaves are irregularly shaped and hairy, while tea stalks are straight, have a small width, and different weights. Therefore, tea stalks are more likely to sink and get stuck in the through slots relative to tea leaves. Through the sorting plate, large and complete tea leaves are first selected through the sorting plate to obtain high-quality tea leaves. The tea leaves sorted and left by the sorting plate until the end, and the tea leaves output from the discharge end of the vibrating sorting bed are relatively small residual tea leaves and tea stalks. For the above-mentioned remaining tea leaf situation, according to the different water contents and polarization degrees of tea leaves and tea stalks, and different electrostatic attraction forces, using electrostatic sorting of tea stalks can pick out more accurately and efficiently. The sorting plate sorting and electrostatic sorting of the present utility model are combined for use, with high accuracy, low mis-sorting rate, less agitation of tea leaves, and low breakage rate. The tea leaves can be sorted in multiple cycles according to needs, and the overall quality of the sorted tea leaves can be easily controlled according to needs. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of the tea stalk removing and sorting machine in the specific embodiment of the present utility model;

[0011] Figure 2 It is a schematic structural diagram of the tea stalk removing and sorting machine in the specific embodiment of the present utility model;

[0012] Reference Signs Description:

[0013] 1, frame; 2, vibrating sorting bed; 3, through slot; 4, sorting plate; 5, discharge port; 6, electrostatic rotating cylinder; 7, material distributing rotating cylinder; 8, separation plate. Specific Embodiment

[0014] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the drawings.

[0015] Please refer to Figure 1 and Figure 2 As shown, a tea stalk removing and sorting machine includes a frame 1 and a vibrating sorting bed 2 inclinedly arranged on the frame 1; the vibrating sorting bed 2 is connected to a driving device;

[0016] A through slot 3 parallel to the advancing direction of the tea leaves is provided on the sorting surface of the vibrating sorting bed 2, and the size of the through slot 3 is adapted to the tea stalks; a plurality of sorting plates 4 parallel to the sorting surface of the sorting bed are provided above the vibrating sorting bed 2, and the distances between the plurality of sorting plates 4 and the sorting surface gradually decrease along the advancing direction of the tea leaves;

[0017] The included angle between the sorting plate 4 and the advancing direction of the tea leaves is an acute angle, one end of the sorting plate 4 is connected to the side wall of the vibrating sorting bed 2, and the other end is connected to the discharge port 5;

[0018] An electrostatic sorting assembly is provided at the discharge end of the vibrating sorting bed 2.

[0019] As described above, the beneficial effects of the present utility model are as follows: The tea stalk removing and sorting machine of the present utility model utilizes the characteristics of tea leaves and tea stalks. For example, tea leaves are irregularly shaped and hairy, while tea stalks are straight, have a small width, and different weights. Therefore, tea stalks are more likely to sink and get stuck in the through groove 3 relative to tea leaves. The large and complete tea leaves are first selected by the sorting plate 4 to obtain high-quality tea leaves. The tea leaves sorted and left by the sorting plate 4 until the end are relatively small residual tea leaves and tea stalks output from the discharge end of the vibration sorting bed 2. For the above-mentioned remaining tea leaf situation, according to the different water contents and polarization degrees of tea leaves and tea stalks, and different electrostatic attractions, using electrostatic sorting of tea stalks can pick them out more accurately and efficiently. The sorting by the sorting plate 4 and electrostatic sorting of the present utility model are combined, with high accuracy, low mis-sorting rate, less agitation of tea leaves, and low breakage rate. The tea leaves can be sorted in multiple cycles as needed, and the overall quality of the sorted tea leaves can be easily controlled as needed.

[0020] Further, in the above-mentioned tea stalk removing and sorting machine, there are 3 sorting plates 4 parallel to the sorting surface of the sorting bed above the vibration sorting bed 2.

[0021] As described above, multiple sorting plates can be set, and different tea leaf passing gaps can be set. Preferably, 3 sorting plates are set.

[0022] Further, in the above-mentioned tea stalk removing and sorting machine, the discharge ports 5 corresponding to each sorting plate 4 respectively correspond to different tea leaf collection hoppers.

[0023] As described above, multiple sorting plates can be set and correspond to different tea leaf collection hoppers, and while picking the stalks, the tea leaf quality can also be graded by 3 sorting plates.

[0024] Further, in the above-mentioned tea stalk removing and sorting machine, the included angle between the sorting plate 4 and the tea leaf advancing direction is 50 - 70 degrees.

[0025] As described above, the setting of the above-mentioned included angle enables the tea leaves to be quickly guided to the discharge port by the sorting plate.

[0026] Further, in the above-mentioned tea stalk removing and sorting machine, the electrostatic sorting component includes an electrostatic generator, an electrostatic rotating cylinder 6 electrically connected to the negative electrode of the electrostatic generator, a material distributing rotating cylinder 7 electrically connected to the positive electrode of the electrostatic generator, and a separation plate 8;

[0027] The electrostatic rotating cylinder 6, the material distributing rotating cylinder 7, and the separation plate 8 are parallel to each other. The separation plate 8 is arranged below between the electrostatic rotating cylinder 6 and the material distributing rotating cylinder 7. The material distributing rotating cylinder 7 introduces the tea leaves at the discharge end of the vibration sorting bed 2 into the electric field between the material distributing rotating cylinder 7 and the electrostatic rotating cylinder 6.

[0028] As described above, the tea leaves sorted and left until the end by the sorting plate and output through the discharge end of the vibrating sorting bed are relatively small broken tea and tea stalks. In view of the above situation, sorting by the electrostatic sorting component greatly improves the sorting accuracy, and at the same time, the tea stalk picking efficiency is also relatively high.

[0029] Further, in the above tea stalk removing and sorting machine, a tea leaf collecting hopper is provided below the material distributing rotating cylinder 7.

[0030] As described above, the separation plate separates the tea stalks and tea leaves, and the tea leaves are collected by the tea leaf collecting hopper.

[0031] Further, in the above tea stalk removing and sorting machine, a feed bin is provided at the feed end of the vibrating sorting bed 2.

[0032] Further, in the above tea stalk removing and sorting machine, the radial cross-section of the through groove 3 is semi-circular.

[0033] As described above, the radial cross-section of the through groove is semi-circular, which can better collect the tea stalks.

[0034] Further, in the above tea stalk removing and sorting machine, the sorting surface of the vibrating sorting bed 2 is rectangular, and the included angle between the sorting surface and the horizontal plane is 15 - 30 degrees.

[0035] As described above, the above angle setting makes the sorting surface conducive to the forward movement of the tea leaves and conducive to the sorting by the sorting plate.

[0036] Further, in the above tea stalk removing and sorting machine, the driving device includes a vibration motor, a connecting rod and an eccentric wheel. The vibration motor drives the eccentric wheel to rotate through the connecting rod, thereby driving the vibrating sorting bed to vibrate.

[0037] As described above, the above setting provides a vibration device, and the vibration makes the tea stalks easier to sink to the bottom and be left until the end for electrostatic sorting.

[0038] Embodiment 1

[0039] Please refer to Figure 1 and Figure 2 , this embodiment provides a tea stalk removing and sorting machine, which includes a frame 1 and a vibrating sorting bed 2 inclinedly arranged on the frame 1; the vibrating sorting bed 2 is connected with a driving device; the driving device includes a vibration motor, a connecting rod and an eccentric wheel. The vibration motor drives the eccentric wheel to rotate through the connecting rod, thereby driving the vibrating sorting bed 2 to vibrate.

[0040] A through groove 3 parallel to the advancing direction of the tea leaves is provided on the sorting surface of the vibration sorting bed 2, and the size of the through groove 3 is adapted to the tea stalks; three sorting plates 4 parallel to the sorting surface of the sorting bed are provided above the vibration sorting bed 2, and the distance between the plurality of sorting plates 4 and the sorting surface gradually decreases along the advancing direction of the tea leaves; the included angle between the sorting plate 4 and the advancing direction of the tea leaves is 50-70 degrees;

[0041] One end of the sorting plate 4 is connected to the side wall of the vibration sorting bed 2, and the other end is connected to the discharge port 5; the discharge ports 5 corresponding to each sorting plate 4 respectively correspond to different tea collecting hoppers.

[0042] A feed bin is provided at the feed end of the vibration sorting bed 2. An electrostatic sorting assembly is provided at the discharge end of the vibration sorting bed 2. The electrostatic sorting assembly includes an electrostatic generator, an electrostatic rotating cylinder 6 electrically connected to the negative electrode of the electrostatic generator, a material dividing rotating cylinder 7 electrically connected to the positive electrode of the electrostatic generator, and a separation plate 8; the electrostatic rotating cylinder 6, the material dividing rotating cylinder 7, and the separation plate 8 are parallel to each other, the separation plate 8 is arranged below between the electrostatic rotating cylinder 6 and the material dividing rotating cylinder 7, and the material dividing rotating cylinder 7 guides the tea leaves at the discharge end of the vibration sorting bed 2 into the electric field between the material dividing rotating cylinder 7 and the electrostatic rotating cylinder 6.

[0043] The radial cross-section of the through groove 3 is semi-circular. The sorting surface of the vibration sorting bed 2 is rectangular, and the included angle between the sorting surface and the horizontal plane is 15-30 degrees.

[0044] Use of the above-mentioned tea stalk removing and sorting machine:

[0045] The tea leaves to be sorted enter the feed bin, and the tea leaves are discharged and spread flat on the sorting surface of the sorting bed. Under the action of vibration and gravity, the tea leaves move forward, and the tea stalks tend to sink more and slide in the through groove 3, and are guided to be output at the discharge end of the sorting bed; while the large and complete tea leaves on the surface are guided by the sorting plate 4 and enter the tea collecting hopper through the discharge port 5 for quality grading. Finally, the tea leaves output through the discharge end of the vibration sorting bed 2 after being sorted by the sorting plate 4 are relatively small broken tea and tea stalks. According to the different water contents and polarization degrees of the tea leaves and tea stalks, and different electrostatic attractions, the tea stalks are easier to be separated from the tea leaves at this time and are accurately picked out. The tea leaves can also be sorted in multiple cycles as needed, and the overall quality of the sorted tea leaves can be easily controlled as needed.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention accordingly. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical field, is equally included in the patent protection scope of the present invention.

Claims

1. A tea stalk removal and sorting machine, characterized in that, It includes a frame and a vibrating sorting bed that is inclined and arranged on the frame; the vibrating sorting bed is connected to a driving device; On the sorting surface of the vibrating sorting bed, there are through grooves parallel to the advancing direction of the tea leaves, and the size of the through grooves is adapted to the tea stalks; above the vibrating sorting bed, there are multiple sorting plates parallel to the sorting surface of the sorting bed, and the distance between the multiple sorting plates and the sorting surface gradually decreases along the advancing direction of the tea leaves; The included angle between the sorting plate and the advancing direction of the tea leaves is an acute angle. One end of the sorting plate is connected to the side wall of the vibrating sorting bed, and the other end is connected to the discharge port; An electrostatic sorting component is provided at the discharge end of the vibrating sorting bed.

2. The tea stalk removing and sorting machine according to claim 1, wherein, There are 3 sorting plates parallel to the sorting surface of the sorting bed above the vibrating sorting bed.

3. The tea stalk removal and sorting machine according to claim 2, wherein The discharge ports corresponding to each sorting plate respectively correspond to different tea collecting hoppers.

4. The tea stalk removing and sorting machine according to claim 1, wherein The included angle between the sorting plate and the advancing direction of the tea leaves is 50 - 70 degrees.

5. The tea stalk removing and sorting machine according to claim 1, wherein The electrostatic sorting component includes an electrostatic generator, an electrostatic rotating drum electrically connected to the negative electrode of the electrostatic generator, a material distributing rotating drum electrically connected to the positive electrode of the electrostatic generator, and a separation plate; The electrostatic rotating drum, the material distributing rotating drum, and the separation plate are parallel to each other. The separation plate is arranged below between the electrostatic rotating drum and the material distributing rotating drum. The material distributing rotating drum introduces the tea leaves at the discharge end of the vibrating sorting bed into the electric field between the material distributing rotating drum and the electrostatic rotating drum.

6. The tea stalk removing and sorting machine according to claim 5, wherein, There is a tea collecting hopper below the material distributing rotating drum.

7. The tea stalk removing and sorting machine according to claim 1, wherein, A feed bin is provided at the feed end of the vibrating sorting bed.

8. The tea stalk removing and sorting machine according to claim 1, wherein, The radial cross-section of the through groove is semi-circular.

9. The tea stalk-removing and sorting machine according to claim 1, wherein The sorting surface of the vibrating sorting bed is rectangular, and the included angle between the sorting surface and the horizontal plane is 15 - 30 degrees.

10. The tea stalk removal and sorting machine according to claim 1, characterized in that, The driving device includes a vibration motor, a connecting rod, and an eccentric wheel. The vibration motor drives the eccentric wheel to rotate through the connecting rod, thereby driving the vibrating sorting bed to vibrate.

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