CN210876170U - Fresh tea leaf classifier - Google Patents

Abstract

The utility model relates to a fresh tea leaf classifier. A first-stage sieve cylinder is installed on the top of the frame. The outer side of the first-stage sieve cylinder is coaxially sheathed with a second-stage sieve cylinder with a mesh hole smaller than that of the first-stage sieve cylinder. An upper discharge hopper and a lower discharge hopper are respectively arranged at the lower right of the screen cylinder; the right side of the first-stage screen cylinder and the second-stage screen cylinder are fixed by rotating spokes, and the rotating spokes are fixed on the spoke bearing above the right side of the frame through the spoke center axis A feeding hopper is provided on the left side of the primary screen cylinder and the secondary screen cylinder, a feeding pipe is provided at the lower right of the feeding hopper, and the end of the feeding pipe penetrates into the left side of the primary screen cylinder; so A motor is arranged under the feeding hopper, and the motor drives a power wheel to rotate through a transmission belt, and the power wheel is in rotatable contact with the outer side of the left end of the secondary screen drum; a feeding device is also provided on the left side of the frame. The utility model has a reasonable design, effectively saves manpower, improves the screening effect, and has a high degree of automation.

Description

A fresh tea leaf classifier

(1) Technical field

The utility model relates to the technical field of tea processing, in particular to a fresh tea leaf classifier.

(2) Background technology

The quality of fresh leaves is the basis of the quality of tea leaves. After the tea leaves are picked, the size and shape of the collected tea leaves are different, and the grades of the finished products are also different. Processed into different varieties and grades of tea, to achieve product diversification and increase the added value of tea.

The size of the existing tea leaves is screened by manually shaking a filter screen or a screening machine. Manual shaking of the filter screen is time-consuming and laborious; the publication number is CN107597540A, and the patent titled is a kind of tea classifier. The screening and grading device includes a frame, a drum, a feeding hopper, a motor, a grading receiving chute, and a waste discharge hopper. The drum is a circular truncated tube body, and the large and small ends of the drum are respectively provided with annular ribs. Mesh, the axis of the big end of the annular rib is provided with a shaft through the spokes, the frame is provided with two side-by-side driving wheels, the shaft of the large end of the drum is horizontally installed on the frame through the bearing, and the annular rib of the small end of the drum is placed on the two sides. The feeding hopper is installed on the frame and the material opening of the feeding hopper extends into the drum from the small end of the drum. The motor is installed on the frame, and the output shaft of the motor is at the same time. Connected to the two drive wheels. The feeding device and the drum do not affect each other, the feeding amount of the feeding hopper is not limited by the structure of the drum, and the tea classification efficiency is high.

The above structure still has a certain irrationality: the new leaves of tea are of irregular shape, and it is easy to get stuck in the holes of the sieve cylinder to block the mesh holes, so that the filter screen cannot play the role of filtration; for the screening and classification of multi-level new leaves , Since the filter screens with different apertures are connected on the same axis horizontally, the structure will be very long and take up valuable space; it is necessary to manually add new leaves to the feed hopper. If the design of the feed hopper is small, the operator will Frequent feeding is required. If the design is large, the feeding port cannot be very large due to the limitation of the small end aperture of the filter screen, and too many new leaves will easily block the feeding port and affect the efficiency.

(3) Contents of the invention

In view of the above problems in the prior art, the utility model provides a fresh tea leaf classifier.

The utility model is achieved through the following technical solutions:

A fresh tea leaf classifier, comprising a frame, a first-stage sieve drum is installed above the frame, a second-stage sieve drum is coaxially installed on the outer side of the first-stage sieve drum, and the first-stage sieve drum and the second-stage sieve drum are installed coaxially. The lower right side is provided with an upper discharge hopper and a lower discharge hopper respectively; the right side of the primary screen cylinder and the secondary screen cylinder are fixed by rotating spokes, and the rotating spokes are fixed on the spoke bearing seat above the right side of the frame through the spoke central axis ; A feeding hopper is provided on the left side of the primary screen cylinder and the secondary screen cylinder, and a feeding pipe is provided at the lower right of the feeding hopper, and the end of the feeding pipe goes deep into the left side of the primary screen cylinder; A motor is arranged under the hopper, and the motor drives a power wheel to rotate through a transmission belt, and the power wheel is in rotatable contact with the outer side of the left end of the secondary screen cylinder; a fine material extraction plate is also provided below the secondary screen cylinder.

Preferably, a feeding device is provided on the left side of the frame.

Preferably, the feeding device includes a feeding hopper, a baffle plate and a conveyor belt, and the conveyor belt is provided with an oblique upward block.

Preferably, the stopper is made of rubber material.

Preferably, the left end of the primary sieve cylinder is flush with the secondary sieve cylinder, and the primary sieve cylinder at the right end is longer than the secondary sieve cylinder.

Preferably, the mesh opening of the primary sieve cylinder is larger than the mesh opening of the secondary sieve cylinder.

Preferably, there are two symmetrical power wheels, and friction blocks are installed on their outer sides.

Preferably, the friction block has an irregular multi-tooth structure and is made of flexible wear-resistant material.

Preferably, the fine material extraction plate is slidably installed under the frame, and a handle is provided on the outside.

Preferably, a rear baffle is installed at the rear of the frame, and the height of the rear baffle is higher than the center height of the primary screen drum and the secondary screen drum.

The beneficial effects of the present utility model are:

In the fresh tea leaf classifier provided by the utility model, friction blocks with irregular multi-tooth structure are arranged on the power wheel. Corresponding vibration can be generated, which can effectively reduce the blocking of the sieve cylinder holes by tea; the first-stage sieve cylinder and the second-stage sieve cylinder are coaxially arranged inside and outside, which can realize the three-stage screening of fresh tea leaves, and at the same time cooperate with the first-stage sieve cylinder and the second-stage sieve cylinder. Compared with the horizontal setting, it can effectively save space; it is equipped with a feeding device, which effectively reduces the number of manual feeding, saves manpower, improves efficiency, and has a high degree of automation.

(4) Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the front view of the utility model.

Figure 2 is a right side view of the utility model.

FIG. 3 is a schematic diagram 1 of the three-dimensional structure of the present invention.

FIG. 4 is a second schematic diagram of the three-dimensional structure of the present invention.

In the figure, 1-frame, 11-back baffle, 2-first-stage sieve drum, 21-upper discharge hopper, 3-secondary screen drum, 31-lower discharge hopper, 4-rotating spoke, 41-spoke bearing seat , 42-spoke central shaft, 5-feeding hopper, 51-feeding hopper bracket, 52-feeding pipe, 53-support fixing plate, 6-motor, 61-transmission belt, 62-motor bearing seat, 63-pulley, 64-upper bearing seat, 65-power wheel, 651-friction block, 7-fine material pumping plate, 71-handle, 8-feeding device, 81-upper hopper, 82-baffle plate, 83-conveyor belt, 831-block piece.

(5) Specific implementation methods

In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below with reference to accompanying drawings 1 to 4 .

A fresh tea leaf classifier comprises a frame 1, a first-stage sieve cylinder 2 is installed above the frame 1, a second-stage sieve cylinder 3 is coaxially installed on the outer side of the first-stage sieve cylinder 2, and the screen part of the sieve cylinder can be made of iron wire. It can also be made of bamboo strips, and the shape is a cylindrical shape with a small left end and a large right end, which is beneficial to the tea leaves entering from the left end to be discharged from the right end after being screened under rotation. The mesh opening of the primary sieve cylinder 2 is larger than the mesh opening of the secondary sieve cylinder 3 to ensure that the finer fresh leaves are screened out from the primary sieve cylinder 2, the coarse leaves remain in the primary sieve cylinder 2, and the thinnest fresh leaves are removed from the secondary sieve cylinder 2. The stage sieve drum 3 is screened out and falls on the lower fine material suction plate 7 to realize the three-stage classification of new leaves. The upper and lower discharge hoppers 21 and 31 are respectively provided at the lower right of the primary screen cylinder 2 and the secondary screen cylinder 3. The screened coarse leaves and secondary coarse leaves are screened out from the discharge hopper 21 and the lower discharge hopper 31 respectively. The left end of the primary sieve cylinder 2 is flush with the secondary sieve cylinder 3, and the primary sieve cylinder 2 at the right end is longer than the secondary sieve cylinder 3, which is beneficial to prevent the new leaves screened by the primary sieve cylinder 2 and the secondary sieve cylinder 3 from being mixed together. .

The right side of the primary screen cylinder 2 and the secondary screen cylinder 3 is fixed by a rotating spoke 4, and the rotating spoke 4 is fixed on the spoke bearing seat 41 above the right side of the frame 1 through the spoke central axis 42. When the drum 3 is driven to rotate, the primary screen drum 2 rotates at the same time, and the spoke bearing seat 41 provides a rotatable support for the right end of the screen drum.

A feeding hopper 5 is provided on the left of the primary screen cylinder 2 and the secondary screen cylinder 3, and a feeding pipe 52 is provided at the lower right of the feeding hopper 5, and the end of the feeding pipe 52 penetrates into the left side of the primary screen cylinder 2. , to prevent the new leaves from spilling out of the device. The hopper 5 is supported by the feeding hopper bracket 51, and the feeding hopper bracket 51 is fixed on the left side plate of the frame 1 through the bracket fixing plate 53, and the fixing method is screw fastening.

A motor 6 is arranged below the feeding hopper 5 , and the motor 6 is fixed on the motor fixing plate on the left side of the frame 1 . The pulley 63 is provided with two upper and lower pulleys, and the rotational power is transmitted through the transmission belt 61 . The pulley 63 at the upper end drives the power pulley 65 to rotate, and the middle of the pulley 63 and the power pulley 65 provides a rotating support through the upper bearing seat 64 . There are two symmetrical power wheels 65, and the other is a follower wheel, which provides rotatable support, and the structures of the two are exactly the same. A friction block 651 is installed on the outer side of the power wheel 65, and the friction block 651 is an irregular multi-tooth structure and is a flexible wear-resistant material. The secondary screen drum 3 is in rotatable contact with the outside of the left end of the power wheel 65, and is supported and rotated by the power wheel 65. Due to the irregular multi-tooth structure of the friction block 651, the secondary screen drum 3 rotates along the track of the friction block 651. During the rotation, a certain degree of non-concentric vibration is generated during the rotation, and this vibration serves the purpose of reducing the blocking of the mesh holes by the new leaves.

There is also a fine material suction plate 7 below the secondary screen cylinder 3, the fine material suction plate 7 can be slidably installed under the frame, and a handle 71 is provided on the outside, and the new leaves filtered by the secondary screen cylinder 3 fall into the frame. On the fine material extracting plate 7, workers can easily pull out the extracting plate 7 to transfer new leaves. In order to prevent the new leaves from being thrown out of the equipment, a rear baffle 11 is also provided behind the rack 1 .

The left side of the frame 1 is provided with a feeding device 8. As shown in FIG. 4, the feeding device 8 includes a feeding hopper 81, a baffle 82 and a conveyor belt 83. The conveyor belt 83 is provided with a plurality of rows of oblique upward blocks 831. The conveyor belt 83 and the stopper 831 can drive the new leaves in the feeding hopper 81 to the upper end of the feeding device, and then transfer them into the feeding hopper 5 . The upper hopper 81 has a large capacity, which can be filled at one time, and does not need to be added for a long time. The stopper 831 is made of rubber material, which will not affect the quality of the tea leaves due to rust. The operator should set the relationship between the feeding speed of the feeding device 8 and the feeding and screening speed before starting the machine. If the feeding speed is too fast, the new leaves in the feeding hopper 81 will not have time to enter the screening, and it will overflow; If the feeding speed is too slow, the right screening device will be idling, affecting the efficiency.

The working process is as follows: the operator pours the new leaves into the upper hopper 81, and then starts the machine, and the feeding device 8 transports the new leaves into the feeding hopper 5; the new leaves in the feeding hopper 5 flow into the primary screen cylinder 2 Rotary screening, the new leaf size larger than the mesh size of the primary screen cylinder 2 will be screened from the upper discharge hopper 21 to the outside, and the new leaf screen smaller than the mesh size of the primary screen cylinder 2 will continue to rotate and screen in the secondary screen cylinder 3; The new leaves whose size is larger than the mesh size of the secondary screen cylinder 3 will be screened from the upper discharge hopper 31 to the outside, and the new leaves smaller than the mesh size of the primary screen cylinder 2 will fall on the fine material suction plate 7. In this way, the classification and screening of new tea leaves of three sizes are completed.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings (in the present utility model, the positional relationship is represented by a front view), which is only for describing the present utility model rather than requiring the present utility model to be constructed or operated with a specific orientation. , so it cannot be construed as a limitation of the present invention. The "connected" and "connected" in the present invention should be understood in a broad sense, for example, it may be a connection or a detachable connection; it may be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art In other words, the specific meanings of the above terms can be understood in specific situations.

The above are the preferred embodiments of the present invention, and the description of the specific embodiments is only used to better understand the idea of the present invention. For those of ordinary skill in the art, several improvements or equivalent replacements can also be made in accordance with the principles of the present invention, and these improvements or equivalent replacements are also deemed to fall within the protection scope of the present invention.

Claims (10)

1. A tea fresh leaf classifier, comprising a frame (1), characterized in that: a first-level sieve cylinder (2) is installed above the frame (1), and the outer side of the first-level sieve cylinder (2) is coaxial A secondary sieve cylinder (3) is sleeved, and an upper discharge hopper (21) and a lower discharge hopper (31) are respectively provided at the lower right of the primary sieve cylinder (2) and the secondary sieve cylinder (3). The screen cylinder (2) and the right side of the secondary screen cylinder (3) are fixed by the rotating spoke (4), and the rotating spoke (4) is fixed on the spoke bearing seat above the right side of the frame (1) through the spoke central axis (42). (41); a feeding hopper (5) is provided on the left of the primary screen cylinder (2) and the secondary screen cylinder (3), and a feeding pipe (52) is provided at the lower right of the feeding hopper (5), and The end of the feeding pipe (52) penetrates deep into the left side of the first-stage sieve drum (2); a motor (6) is provided below the feeding hopper (5), and the motor (6) is driven by a transmission belt (61). The power wheel (65) rotates, and the power wheel (65) is in rotatable contact with the outer side of the left end of the secondary screen cylinder (3); a fine material extraction plate (7) is also provided below the secondary screen cylinder (3). 2 . The fresh tea leaf classifier according to claim 1 , wherein a feeding device ( 8 ) is provided on the left side of the frame ( 1 ). 3 . 3. A fresh tea leaf classifier according to claim 2, characterized in that: the feeding device (8) comprises a feeding hopper (81), a baffle (82) and a conveyor belt (83), the conveyor belt (83) is provided with an oblique upward stopper (831). 4 . The fresh tea leaf classifier according to claim 3 , wherein the stopper ( 831 ) is made of rubber material. 5 . 5. A fresh tea leaf classifier according to claim 1, characterized in that: the left end of the primary sieve cylinder (2) and the secondary sieve cylinder (3) are flush with the left end of the primary sieve cylinder (2) at the right end. Longer than the secondary screen drum (3). 6 . The fresh tea leaf classifier according to claim 5 , wherein the mesh of the first-stage sieve cylinder ( 2 ) is larger than that of the second-stage sieve cylinder ( 3 ). 7 . 7 . The fresh tea leaf classifier according to claim 1 , wherein the power wheels ( 65 ) are two symmetrical, and friction blocks ( 651 ) are installed on the outer side. 8 . 8 . The fresh tea leaf classifier according to claim 7 , wherein the friction block ( 651 ) has an irregular multi-tooth structure and is a flexible and wear-resistant material. 9 . 9 . The fresh tea leaf classifier according to claim 1 , wherein the fine material extraction plate ( 7 ) is slidably installed under the frame, and a handle ( 71 ) is provided on the outside. 10 . 10. A fresh tea leaf classifier according to claim 1, characterized in that: a rear baffle (11) is installed at the rear of the frame (1), and the height of the rear baffle (11) is It is higher than the center height of the primary screen drum (2) and the secondary screen drum (3).

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