Tea sorting device

Abstract

The invention discloses a tea sorting device, and relates to the technical field of tea processing equipment, the tea sorting device comprises a sorting box, two groups of positioning frames are arranged in the sorting box, a first sorting sieve is detachably arranged on the upper positioning frame, and a second sorting sieve is detachably arranged on the lower positioning frame; a stirring fork is arranged in the sorting box, extends into the first sorting sieve and is driven by a rotating motor, a motor shaft of the rotating motor penetrates through the top of the sorting box, and the rotating motor is arranged above the sorting box through a lifting frame; and an air outlet is formed below the first sorting sieve, is obliquely arranged and faces the first sorting sieve. According to the tea leaf sorting device, tea leaves can be fully scattered, tea leaf accumulation is avoided, impurities in the tea leaves are separated from qualified tea leaves, the sorting precision is improved, the tea leaves in the first sorting sieve can be fluffy in the air blowing process, the tea leaves in the blocked sieve holes are blown away, and the tea leaves in the first sorting sieve can be separated. And the influence on normal operation of the screening operation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of tea processing equipment, and in particular to a tea sorting device. Background Art

[0002] As an important beverage, tea is widely consumed around the world. As people's living standards improve, the requirements for tea quality are becoming increasingly stringent. Tea sorting is an indispensable key link in the tea production process. Its purpose is to separate teas of different qualities and grades to meet the diverse needs of the market.

[0003] Traditional tea sorting is mainly done manually. There are many disadvantages in manual sorting. First, manual sorting is inefficient and difficult to meet the needs of large-scale tea production. During the peak season of tea picking, a large amount of tea needs to be sorted in time. Manual operation is slow, which easily leads to tea backlog and affects production progress. Secondly, the accuracy and consistency of manual sorting are poor. Different sorters may have different judgment standards for tea quality, which makes the quality of sorted tea uneven and difficult to ensure the stability of the product. In addition, manual sorting is also faced with the problem of rising labor costs, which brings a heavy economic burden to tea production companies.

[0004] At present, during the tea processing, tea leaves of different sizes need to be screened by means of a vibrating sorting screen. However, during the sorting process, the tea leaves often clog the screen holes, affecting the sorting effect. Summary of the invention

[0005] The purpose of the present invention is to solve the defects in the prior art and to propose a tea sorting device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A tea sorting device comprises a sorting box, wherein two groups of positioning frames are arranged in the sorting box, a first sorting screen is detachably arranged on the upper positioning frame, and a second sorting screen is detachably arranged on the lower positioning frame; a stirring fork is arranged in the sorting box, the stirring fork extends into the first sorting screen, the stirring fork is driven by a rotating motor, the motor shaft of the rotating motor passes through the top of the sorting box, and the rotating motor is arranged above the sorting box through a lifting frame; an air outlet is arranged below the first sorting screen, the air outlet is arranged obliquely and faces the first sorting screen.

[0008] Furthermore, a gap is provided between the two groups of positioning frames, the air outlet is provided in the gap, the air outlet comprises a horizontal section, a flexible section and a bending section which are arranged in sequence, the horizontal section is connected to an external blower, the bending section is hinged in the sorting box through a hinge seat damping, and the hinge seat is fixedly connected in the sorting box.

[0009] Furthermore, the upper positioning frame has the same structure as the lower positioning frame, including an upper frame body and a lower frame body, the edges of the upper frame body and the lower frame body are fixedly connected to the inner wall of the sorting box, the upper frame body and the lower frame body are connected by two groups of connecting rods, the lower end surface of the upper frame body is provided with an upper slide groove, the upper end surface of the lower frame body is provided with a lower slide groove, the two ends of the connecting rod are respectively embedded in the upper slide groove and the lower slide groove, and a return spring is arranged between the end of the connecting rod and the inner wall of the slide groove; a positioning roller is sleeved on the connecting rod, and the distance between the two positioning rollers is smaller than the outer diameter of the sorting screen.

[0010] Furthermore, the stirring fork includes a group of cross bars and multiple groups of longitudinal bars, the longitudinal bars are fixedly connected to the bottom of the cross bars, and ball grooves are opened at the bottom of both ends of the cross bars. Balls are arranged in the ball grooves, and the balls are used to abut against the upper end surface of the upper positioning frame.

[0011] Furthermore, the lifting frame includes two groups of symmetrically arranged door frames, the door frames are fixedly connected with lifting cylinders, the output ends of the lifting cylinders are provided with mounting plates, and the rotating motor is fixedly connected to the mounting plates.

[0012] Furthermore, a feeding port is provided on the upper end surface of the sorting box, the feeding port passes through the top of the sorting box and extends into the sorting box, and the passing end of the feeding port is arranged adjacent to the upper positioning frame.

[0013] Furthermore, an exhaust port is provided on the top of the sorting box, and the exhaust port is connected to an external negative pressure device.

[0014] Furthermore, the sorting box is provided with an opening and closing door, the opening and closing door is provided with a positioning opening, the first sorting screen and the second sorting screen are provided with positioning handles, and the positioning handles are matched with the positioning openings.

[0015] Furthermore, a vibration motor is arranged at the bottom of the sorting box, and the output end of the vibration motor abuts against the bottom of the second sorting screen.

[0016] Beneficial Effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Through the arrangement of the present invention, a tea sorting device is proposed, which can allow the tea leaves to be fully spread out to avoid tea leaves from piling up, separate impurities in the tea leaves from qualified tea leaves, and improve the sorting accuracy. During the blowing process, the tea leaves in the first sorting screen will be fluffy, and the tea leaves in the blocked screen holes will be blown away to avoid affecting the normal operation of the screening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the tea sorting device.

[0021] Figure 2 This is a schematic diagram of the internal structure of the tea sorting device.

[0022] Figure 3 It is a structural schematic diagram of the sorting screen and positioning frame.

[0023] In the figure: 1. lifting frame; 2. feeding port; 3. stirring fork; 4. first sorting screen; 5. air outlet; 6. positioning handle; 7. second sorting screen; 8. blower; 9. positioning opening; 10. exhaust port; 11. positioning roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-Figure 3 A tea sorting device comprises a sorting box, wherein two sets of positioning frames are arranged in the sorting box, a first sorting screen 4 is detachably arranged on the upper positioning frame, and a second sorting screen 7 is detachably arranged on the lower positioning frame; a stirring fork 3 is arranged in the sorting box, the stirring fork 3 extends into the first sorting screen 4, the stirring fork 3 is driven by a rotating motor, the motor shaft of the rotating motor passes through the top of the sorting box, and the rotating motor is arranged above the sorting box through a lifting frame 1; an air outlet 5 is arranged below the first sorting screen 4, and the air outlet 5 is arranged obliquely and faces the first sorting screen 4.

[0027] When tea leaves need to be sorted, the tea leaves to be sorted are first poured onto the first sorting screen 4 in the sorting box, and the rotating motor is started. The motor shaft of the rotating motor drives the stirring fork 3 to rotate, and the stirring fork 3 extends into the first sorting screen 4 to stir the tea leaves. The stirring fork can fully spread the tea leaves to avoid tea leaves piling up and affecting the sorting effect. During the stirring process, smaller tea leaves will fall through the sieve holes of the first sorting screen 4, while larger tea leaves will remain on the first sorting screen 4, completing the preliminary screening.

[0028] An air outlet 5 inclined toward the first sorting screen 4 is provided below the first sorting screen 4. When the fan is started, wind is blown out from the air outlet 5. The wind acts on the tea leaves on the first sorting screen 4, and the dust, debris, etc. mixed therein will be blown away from the first sorting screen 4 under the action of the wind, while the heavier qualified tea leaves will remain on the screen surface to continue the subsequent screening process. Through this wind-assisted method, impurities in the tea leaves can be further separated from qualified tea leaves, thereby improving the accuracy of sorting. Moreover, during the blowing process, the tea leaves in the first sorting screen 4 will be fluffy, and the tea leaves in the blocked sieve holes will be blown away to avoid affecting the normal operation of the screening operation.

[0029] Since the first sorting screen 4 and the second sorting screen 7 are both detachably arranged on the positioning frame, the operator can conveniently replace the sorting screens with different mesh sizes according to the characteristics of different tea varieties, particle sizes, etc., thereby improving the adaptability of the device to different teas. At the same time, the rotating motor is arranged above the sorting box through the lifting frame 1, and the stirring fork 3 is lifted after the sorting is completed to facilitate the extraction of the sorting screen.

[0030] In other preferred embodiments, a gap is provided between the two groups of positioning frames, and the air outlet 5 is provided in the gap. The air outlet 5 includes a horizontal section, a flexible section and a bending section which are arranged in sequence. The horizontal section is connected to the external blower 8, and the bending section is hinged in the sorting box through a hinge seat damping, and the hinge seat is fixedly connected in the sorting box.

[0031] The bending section is connected by a damping hinge, and the operator can manually adjust the angle of the bending section according to the actual tea sorting situation, thereby changing the direction and angle of the wind force blown out of the air outlet 5. For example, when encountering tea leaves of different shapes and weight distributions, the wind force direction can be accurately adjusted to better act on the tea leaves and improve the wind sorting effect.

[0032] In other preferred embodiments, the upper positioning frame has the same structure as the lower positioning frame, including an upper frame and a lower frame, the edges of the upper frame and the lower frame are fixedly connected to the inner wall of the sorting box, the upper frame and the lower frame are connected by two sets of connecting rods, an upper slide groove is provided on the lower end surface of the upper frame, and a lower slide groove is provided on the upper end surface of the lower frame, the two ends of the connecting rod are respectively embedded in the upper slide groove and the lower slide groove, and a return spring is arranged between the end of the connecting rod and the inner wall of the slide groove; a positioning roller 11 is sleeved on the connecting rod, and the distance between the two positioning rollers 11 is smaller than the outer diameter of the sorting screen.

[0033] The positioning roller 11 is designed to fit closely to the edge of the sorting screen and firmly fix the sorting screen in the positioning frame. During the operation of the device, especially when the stirring fork 3 stirs the tea leaves and the wind acts on the tea leaves, the sorting screen will be subjected to certain impact and vibration. The positioning roller 11 can effectively prevent the sorting screen from displacement or shaking, ensuring the stable sorting work.

[0034] The synergistic effect of the positioning roller 11 and the return spring makes the replacement operation of the sorting screen more convenient. When the sorting screen needs to be replaced, it is only necessary to overcome the elastic force of the return spring and pull the sorting screen out from between the positioning rollers 11, without the need for a complicated disassembly process, thus saving replacement time and improving the use efficiency of the equipment.

[0035] In other preferred embodiments, the stirring fork 3 includes a set of cross bars and multiple sets of longitudinal bars, the longitudinal bars are fixedly connected to the bottom of the cross bars, and ball grooves are provided at the bottoms of both ends of the cross bars, and balls are provided in the ball grooves, and the balls are used to abut against the upper end surface of the upper positioning frame. Through the setting of this structure, the support of the end of the cross bar is guaranteed under the premise of ensuring the normal operation of the cross bar.

[0036] In other preferred embodiments, the lifting frame 1 includes two groups of symmetrically arranged door frames, the door frames are fixedly connected to lifting cylinders, the output ends of the lifting cylinders are provided with mounting plates, and the rotating motor is fixedly connected to the mounting plates.

[0037] In other preferred embodiments, the upper end surface of the sorting box is provided with a feeding port 2, which passes through the top of the sorting box and extends into the sorting box, and the through end of the feeding port 2 is arranged near the upper positioning frame. Through the arrangement of this structure, the tea leaves to be sorted can be directly and accurately put into the first sorting screen 4, which reduces the difficulty and error of manual feeding, improves the feeding efficiency, and also prevents the tea leaves from being scattered in the sorting box, ensuring a clean sorting environment.

[0038] In other preferred embodiments, an exhaust port 10 is provided on the top of the sorting box, and the exhaust port 10 is connected to an external negative pressure device. During the wind sorting process, the negative pressure device can discharge the lighter impurities and dust blown up from the sorting box in time through the exhaust port 10, purify the sorting environment, prevent impurities from mixing into the tea leaves again, improve the purity of the sorting, and also help keep the inside of the equipment clean and reduce the maintenance workload of the equipment.

[0039] In other preferred embodiments, the sorting box is provided with an opening and closing door, a positioning opening 9 is provided on the opening and closing door, and a positioning handle 6 is provided on the first sorting screen 4 and the second sorting screen 7, and the positioning handle 6 is matched with the positioning opening 9. After the sorting screen is placed on the positioning frame, the opening and closing door is closed, so that the positioning handle 6 of the sorting screen is embedded in the positioning opening 9 to prevent the sorting screen from deviating in position.

[0040] In other preferred embodiments, a vibration motor is provided at the bottom of the sorting box, and the output end of the vibration motor is against the bottom of the second sorting screen 7. A vibration motor is provided at the bottom of the sorting box, and the output end of the vibration motor is against the bottom of the second sorting screen 7. During the secondary screening process, the vibration motor generates vibrations, which can make the tea leaves on the second sorting screen 7 contact the sieve holes more fully, speed up the screening speed of the tea leaves, improve the screening accuracy, ensure that tea leaves of different specifications can be separated more thoroughly, and meet the higher standard of tea grading requirements.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tea sorting device, characterized in that: It comprises a sorting box, wherein two groups of positioning frames are arranged in the sorting box, a first sorting screen is detachably arranged on the upper positioning frame, and a second sorting screen is detachably arranged on the lower positioning frame; a stirring fork is arranged in the sorting box, the stirring fork extends into the first sorting screen, the stirring fork is driven by a rotating motor, the motor shaft of the rotating motor passes through the top of the sorting box, and the rotating motor is arranged above the sorting box through a lifting frame; an air outlet is arranged below the first sorting screen, the air outlet is arranged obliquely, and faces the first sorting screen.

2. A tea sorting device according to claim 1, characterized in that: A gap is provided between the two groups of positioning frames, the air outlet is provided in the gap, the air outlet comprises a horizontal section, a flexible section and a bending section which are arranged in sequence, the horizontal section is connected to an external blower, the bending section is hinged in the sorting box through a hinge seat damping, and the hinge seat is fixedly connected in the sorting box.

3. A tea sorting device according to claim 1, characterized in that: The upper positioning frame has the same structure as the lower positioning frame, and comprises an upper frame and a lower frame. The edges of the upper frame and the lower frame are fixedly connected to the inner wall of the sorting box. The upper frame and the lower frame are connected by two sets of connecting rods. An upper slide groove is provided on the lower end surface of the upper frame, and a lower slide groove is provided on the upper end surface of the lower frame. The two ends of the connecting rod are respectively embedded in the upper slide groove and the lower slide groove. A return spring is provided between the end of the connecting rod and the inner wall of the slide groove. A positioning roller is sleeved on the connecting rod, and the distance between the two positioning rollers is smaller than the outer diameter of the sorting screen.

4. A tea sorting device according to claim 1, characterized in that: The stirring fork includes a group of cross bars and multiple groups of longitudinal bars, the longitudinal bars are fixedly connected to the bottom of the cross bars, ball grooves are opened at the bottom of both ends of the cross bars, balls are arranged in the ball grooves, and the balls are used to abut against the upper end surface of the upper positioning frame.

5. A tea sorting device according to claim 1, characterized in that: The lifting frame comprises two groups of symmetrically arranged door frames, the door frames are fixedly connected with lifting cylinders, the output ends of the lifting cylinders are provided with mounting plates, and the rotating motor is fixedly connected to the mounting plates.

6. A tea sorting device according to claim 1, characterized in that: The upper end surface of the sorting box is provided with a feeding port, the feeding port passes through the top of the sorting box and extends into the sorting box, and the passing end of the feeding port is arranged adjacent to the upper positioning frame.

7. A tea sorting device according to claim 1, characterized in that: An exhaust port is arranged on the top of the sorting box, and the exhaust port is connected to an external negative pressure device.

8. A tea sorting device according to claim 1, characterized in that: The sorting box is provided with an opening and closing door, and a positioning opening is provided on the opening and closing door. The first sorting screen and the second sorting screen are provided with positioning handles, and the positioning handles are matched with the positioning openings.

9. A tea sorting device according to claim 1, characterized in that: A vibration motor is arranged at the bottom of the sorting box, and the output end of the vibration motor abuts against the bottom of the second sorting screen.

Images