Tea screening equipment facilitating classified screening

Abstract

The utility model discloses tea screening equipment convenient for classified screening, which belongs to the technical field of tea processing and comprises a screening bin and a feeding port arranged on the upper surface of the screening bin, and a screening part for screening is arranged on the screening bin; the screening part comprises three discharging frames communicated to one side of the screening bin, the discharging end of the top discharging frame is communicated with a discharging pipe, the discharging end of the middle discharging frame and the discharging end of the bottom discharging frame are each communicated with a connecting pipe communicated with the discharging pipe at one end, and three control valves are installed on the discharging pipes. According to the tea leaf screening device, the driving motor drives the set of supporting plates to move in a reciprocating mode to drive the screens on the supporting plates to move in a following mode, then tea leaves fed into the feeding port can be subjected to multi-stage screening, meanwhile, the discharging frame is located above the screens and is inclined, the tea leaves screened by the three screens can be sequentially guided out through the discharging pipe and the connecting pipe, and the tea leaf screening efficiency is improved. And an operator can conveniently receive the screened tea leaves in sequence, so that the discharging convenience is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, in particular to a tea screening device which is convenient for grading and screening. Background Art

[0002] With the improvement of people's living standards, high-quality tea is becoming more and more popular among consumers. Screening and processing of different types of tea has always been one of the key processes in the tea production process.

[0003] Existing tea screening equipment mostly adopts the method of screen vibration for screening, such as the utility model with announcement number CN220479391U, which discloses a tea rapid screening equipment, including a support frame and a screening mechanism; the support frame: the inner walls on both sides are provided with chutes, and the front and rear inner walls of the two chutes are rotatably connected with a screw rod through a bearing, and the front right end of the support frame is fixedly connected with a motor, and the output shaft of the motor is fixedly connected to the front end of the screw rod on the right side. The vibration motor is controlled to operate by a control switch group, and the vibration motor vibrates the screen. The vibration of the screen causes the tea leaves to be continuously vibrated and separated, and finally the tea leaves that do not meet the requirements of size pass through the screen and fall into the funnel at the bottom. When the vibration motor is running, the sprocket on the right side rotates synchronously with the sprocket on the left side and the screw rod on the left side through the chain drive. The two screw rods rotate synchronously and periodically forward and reversely, so that the screening mechanism continuously performs back and forth reciprocating motion under the limiting action of the chute, so that the tea leaves are subjected to the force of forward and backward displacement during the screening process, thereby accelerating its screening speed, accelerating the screening speed of the tea leaves, improving the screening efficiency, and improving the screening efficiency and the continuity of the process flow.

[0004] However, after the screening equipment in the above application has finished screening the tea leaves, the operator needs to open the inlet and outlet baffles to take out the tea leaves that have not been filtered and screened by the screen, which affects the convenience of discharging. In addition, the entire equipment is not convenient for multi-stage screening of tea leaves, which affects the screening effect. Therefore, a tea screening equipment that is convenient for graded screening is proposed to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a tea screening equipment that is convenient for graded screening. The reciprocating side plates drive three screens to perform multi-level screening of the tea. At the same time, the discharge rack located above the screens can discharge the screened tea in sequence, which has the advantages of improving screening effect and discharge efficiency.

[0007] (2) Technical solution

[0008] The utility model provides a tea screening device which is convenient for grading and screening, comprising a screening bin and a feeding port provided on the upper surface of the screening bin, wherein a screening element for screening is provided on the screening bin;

[0009] The screening element includes three discharge racks connected to one side of the screening bin, the discharge end of the top discharge rack is connected to a discharge pipe, the middle discharge rack and the discharge end of the bottom discharge rack are both connected to a connecting pipe connected to a discharge pipe at one end, and three control valves are installed on the discharge pipe, the inner bottom wall of the screening bin is slidably connected to a group of support plates, the inner sides of a group of support plates are fixedly connected to a number of screens, a number of springs are fixedly connected between the support plates and the inner walls of the screening bin, the front side of the screening bin is fixedly connected to a mounting rack, the inner bottom wall of the mounting rack is fixedly installed with a driving motor, the output shaft of the driving motor is fixedly connected to a turntable, and the eccentric part of the turntable is rotatably connected to a connecting rod with one end passing through the screening bin and hinged to the front support plate;

[0010] A slag guide plate located below the screen is fixedly connected to the inner side of a group of support plates, and a slag discharge port is opened on the other side of the screening bin;

[0011] The screening bin is provided with a dust collecting member for removing dust.

[0012] Preferably, the three screens are distributed equidistantly on the support plate in an inclined shape, the discharge rack is conical, and the discharge rack is distributed above the screens in an inclined shape.

[0013] Preferably, the upper ends of the connecting pipe and the discharge pipe are both inclined, the middle control valve and the bottom control valve are located below the connecting pipe, and a connecting rod through hole is provided on the front of the screening bin.

[0014] Preferably, the lower end portion of the support plate is fixedly connected to a sliding block having one end extending into the interior of the screening bin, and the inner bottom wall of the screening bin is provided with a sliding groove for the sliding block to slide.

[0015] Preferably, the slag guide plates are distributed in an inclined shape, and the inclination direction of the slag guide plates is opposite to the inclination direction of the screen, and the slag discharge port is located above the slag guide plates.

[0016] Preferably, the dust collection device includes a support frame fixedly connected to the other side of the screening bin, a collection box is slidably connected to the inner side of the support frame, a filter is fixedly connected to the inner bottom wall of the collection box, a fan is fixedly installed on the lower end of the support frame, the air inlet end of the fan is connected to a ventilation pipe with one end passing through the support frame, the upper surface of the support frame is connected to a first suction pipe with one end connected to the slag discharge port, and the upper surface of the support frame is connected to a second suction pipe with one end connected to the feeding port.

[0017] Preferably, a rectangular hole for the collection box to slide is provided on a side of the support frame away from the screening bin, and a handle is fixedly connected to the outer side of the collection box.

[0018] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0019] 1. This tea screening equipment, which is convenient for graded screening, drives a group of support plates to move back and forth through a driving motor, thereby driving the screens on the support plates to move accordingly, and can perform multi-stage screening on the tea put into the feeding port. At the same time, since the discharge rack is located above the screen and is inclined, the tea leaves screened by the three screens can be sequentially discharged through the discharge pipe and the connecting pipe, so that the operator can receive the screened tea leaves in sequence, thereby providing convenient discharging.

[0020] 2. This tea screening equipment is convenient for grading and screening. After the fan is started, it draws the air in the support frame through the ventilation pipe. The dust and debris raised during the screening process at the feeding port and the slag discharge port can be absorbed by the first suction pipe and the second suction pipe and filtered and collected by the filter screen, so as to reduce the dispersion of dust and debris, reduce the pollution to the workshop environment, and achieve environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0022] Figure 2 This is a side view of the overall structure of the utility model;

[0023] Figure 3 This is a side sectional view of the overall structure of the utility model;

[0024] Figure 4 This is a cross-sectional view of the connection between the support frame and the collection box structure of the utility model.

[0025] Figure numerals: 1. Screening bin; 2. Feeding port; 3. Screening element; 31. Discharge rack; 32. Discharge pipe; 33. Connecting pipe; 34. Control valve; 35. Support plate; 36. Slag guide plate; 37. Screen; 38. Spring; 39. Slider; 310. Mounting frame; 311. Drive motor; 312. Turntable; 313. Connecting rod; 4. Dust collector; 41. Support rack; 42. First suction pipe; 43. Second suction pipe; 44. Fan; 45. Ventilation pipe; 46. Collection box; 47. Filter; 5. Slag discharge port. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0027] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" can mean fixed connection, welding, riveting, bonding, etc., or detachable connection, threaded connection, key connection, pin connection, etc., or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0029] like Figure 1-4 As shown, the utility model proposes a tea screening device that is convenient for grading and screening, including a screening bin 1 and a feeding port 2 opened on the upper surface of the screening bin 1, and a screening element 3 for screening is provided on the screening bin 1.

[0030] In the present invention, after the tea to be screened is fed through the feeding port 2, it can be screened in multiple stages by the screening element 3 on the screening bin 1. At the same time, the screened tea can be discharged in sequence to improve the tea screening effect and the convenience of discharging.

[0031] In an optional embodiment, the screening element 3 includes three discharge racks 31 connected to one side of the screening bin 1, the discharge end of the top discharge rack 31 is connected to a discharge pipe 32, the discharge ends of the middle discharge rack 31 and the bottom discharge rack 31 are both connected to a connecting pipe 33 connected to the discharge pipe 32 at one end, and three control valves 34 are installed on the discharge pipe 32, a group of support plates 35 are slidably connected to the inner bottom wall of the screening bin 1, a group of support plates 35 are fixedly connected to the inner side of three screens 37, a number of springs 38 are fixedly connected between the support plates 35 and the inner wall of the screening bin 1, a mounting frame 310 is fixedly connected to the front side of the screening bin 1, a drive motor 311 is fixedly installed on the inner bottom wall of the mounting frame 310, the output shaft of the drive motor 311 is fixedly connected to a turntable 312, and the eccentric part of the turntable 312 is rotatably connected to a connecting rod 313 with one end passing through the screening bin 1 and hinged to the front support plate 35.

[0032] In this embodiment, a group of support plates 35 are driven to move back and forth by a driving motor 311, which drives the screen 37 on the support plate 35 to move accordingly, and the tea leaves fed into the feeding port 2 can be screened in multiple stages. At the same time, since the discharge rack 31 is located above the screen 37 and is inclined, the tea leaves screened by the three screens 37 can be sequentially discharged through the discharge pipe 32 and the connecting pipe 33, so that the operator can receive the screened tea leaves in sequence, thereby providing convenience in discharging.

[0033] It should be noted that the three screens 37 are equidistantly distributed in an inclined manner on the support plate 35, so that the tea leaves that fall onto the screens 37 can be guided into the discharge rack 31 and can also be screened by the shaking screens 37. The discharge rack 31 is conical, and the discharge rack 31 is inclined and distributed above the screen 37, so that the conical and inclined discharge rack 31 can guide the screened tea leaves in sequence into the discharge pipe 32 and the connecting pipe 33.

[0034] Among them, the upper ends of the connecting pipe 33 and the discharge pipe 32 are both inclined, the middle control valve 34 and the bottom control valve 34 are located below the connecting pipe 33, and the tea leaves discharged from the connecting pipe 33 are controlled by the middle and bottom control valves 34. A connecting rod 313 through hole is opened on the front of the screening bin 1, so that the connecting rod 313 passing through the screening bin 1 has space to swing.

[0035] In addition, the lower end of the support plate 35 is fixedly connected to a slider 39, one end of which extends into the interior of the screening bin 1. The inner bottom wall of the screening bin 1 is provided with a sliding groove for the slider 39 to slide, so that the two support plates 35 can be stably pushed and pulled on the screening bin 1 by the connecting rod 313 through the slider 39 and the sliding groove.

[0036] In an optional embodiment, a group of support plates 35 are fixedly connected to the inner side with a slag guide plate 36 located below the screen 37. The slag guide plate 36 is distributed in an inclined shape, and the inclination direction of the slag guide plate 36 is opposite to the inclination direction of the screen 37. A slag discharge port 5 is provided on the other side of the screening bin 1. The slag discharge port 5 is located above the slag guide plate 36. The screened solid impurities and broken tea leaves are discharged through the slag guide plate 36 and the slag discharge port 5, and a conventional material receiving box is placed below the slag discharge port 5 for receiving.

[0037] In this embodiment, the broken leaves and impurities carried by the tea leaves after being screened by the three screens 37 are screened out by the bottom screen 37 and guided to the slag guide plate 36 to be discharged at the slag discharge port 5.

[0038] In an optional embodiment, a dust collecting part 4 for dust removal is provided on the screening bin 1, and the dust collecting part 4 includes a support frame 41 fixedly connected to the other side of the screening bin 1, a collecting box 46 is slidably connected to the inner side of the support frame 41, a filter screen 47 is fixedly connected to the inner bottom wall of the collecting box 46, and a fan 44 is fixedly installed on the lower end of the support frame 41, and the air inlet end of the fan 44 is connected to a ventilation pipe 45 with one end passing through the support frame 41, the upper surface of the support frame 41 is connected to a first suction pipe 42 with one end connected to the slag discharge port 5, and the upper surface of the support frame 41 is connected to a second suction pipe 43 with one end connected to the feeding port 2.

[0039] In this embodiment, after the started fan 44 draws the air in the support frame 41 through the ventilation pipe 45, the dust and debris raised during the screening process at the feeding port 2 and the slag discharge port 5 can be adsorbed by the first suction pipe 42 and the second suction pipe 43 and filtered and collected by the filter screen 47 to reduce the dispersion of dust and debris, reduce pollution to the workshop environment, and achieve environmental protection effects.

[0040] It should be noted that a rectangular hole for the collection box 46 to slide is provided on the side of the support frame 41 away from the screening bin 1 , and a handle is fixedly connected to the outer side of the collection box 46 .

[0041] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing disclosed power connection technology will not be described in detail in this article.

[0042] The working principle in the above embodiment is:

[0043] After the driving motor 311 is started and drives the turntable 312 to rotate, the connecting rod 313 that rotates with the turntable 312 pushes and pulls the two support plates 35 back and forth, driving the three screens 37 in the support plates 35 to follow the reciprocating rocking, so that the tea leaves fed into the feeding port 2 can be screened into coarse, medium and fine specifications from top to bottom, and the impurities and broken leaves screened by the bottom screen 37 are discharged through the slag guide plate 36 and the slag discharge port 5, and the tea leaves screened by the screen 37 are introduced into the discharge pipe 32 and the connecting pipe 33 through the discharge rack 31, and then the fine, medium and coarse specifications of tea leaves are discharged in sequence by opening the control valves 34 in sequence from bottom to top. The operator only needs to use a conventional receiving box to receive the tea leaves.

[0044] During the tea screening process, after the fan 44 is started to allow the ventilation pipe 45 to pump air into the support frame 41, the dust and debris raised during the screening process at the feeding port 2 and the slag discharge port 5 can be adsorbed by the first suction pipe 42 and the second suction pipe 43 and filtered and collected by the filter 47, so as to reduce the dispersion of dust and debris and reduce the pollution of the raised dust to the workshop environment.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tea screening device for convenient grading and screening, comprising a screening bin (1) and a feeding port (2) provided on the upper surface of the screening bin (1), characterized in that: The screening bin (1) is provided with a screening element (3) for screening; The screening element (3) includes three discharge racks (31) connected to one side of the screening bin (1), the discharge end of the top discharge rack (31) is connected to a discharge pipe (32), the discharge ends of the middle discharge rack (31) and the bottom discharge rack (31) are both connected to a connecting pipe (33) connected to the discharge pipe (32), and three control valves (34) are installed on the discharge pipe (32). The inner bottom wall of the screening bin (1) is slidably connected to a group of support plates (35), and the inner side of a group of support plates (35) is fixedly connected to the inner side of the support plates (35). Three screens (37) are connected, a plurality of springs (38) are fixedly connected between the support plate (35) and the inner wall of the screening bin (1), a mounting frame (310) is fixedly connected to the front of the screening bin (1), a driving motor (311) is fixedly mounted on the inner bottom wall of the mounting frame (310), an output shaft of the driving motor (311) is fixedly connected to a turntable (312), and an eccentric portion of the turntable (312) is rotatably connected to a connecting rod (313) having one end penetrating the screening bin (1) and hinged to the front support plate (35); A slag guide plate (36) located below the screen (37) is fixedly connected to the inner side of a group of support plates (35), and a slag discharge port (5) is opened on the other side of the screening bin (1); The screening bin (1) is provided with a dust collecting member (4) for removing dust.

2. The tea screening device for convenient grading and screening according to claim 1, characterized in that: The three screens (37) are distributed on the support plate (35) in an inclined shape and at equal intervals. The discharge rack (31) is conical, and the discharge rack (31) is distributed above the screens (37) in an inclined shape.

3. The tea screening device for convenient grading and screening according to claim 1, characterized in that: The upper ends of the connecting pipe (33) and the discharge pipe (32) are both inclined, the middle control valve (34) and the bottom control valve (34) are located below the connecting pipe (33), and a connecting rod (313) through hole is opened on the front of the screening bin (1).

4. The tea screening device for convenient grading and screening according to claim 1, characterized in that: The lower end of the support plate (35) is fixedly connected to a slider (39) having one end extending into the interior of the screening bin (1), and the inner bottom wall of the screening bin (1) is provided with a sliding groove for the slider (39) to slide.

5. The tea screening device for convenient grading and screening according to claim 1, characterized in that: The slag guide plates (36) are distributed in an inclined shape, and the inclination direction of the slag guide plates (36) is opposite to the inclination direction of the screen (37). The slag discharge port (5) is located above the slag guide plates (36).

6. The tea screening device for convenient grading and screening according to claim 1, characterized in that: The dust collecting member (4) comprises a support frame (41) fixedly connected to the other side of the screening bin (1), a collecting box (46) is slidably connected to the inner side of the support frame (41), a filter screen (47) is fixedly connected to the inner bottom wall of the collecting box (46), a fan (44) is fixedly installed on the lower end of the support frame (41), an air inlet end of the fan (44) is connected to a ventilation pipe (45) having one end passing through the support frame (41), an upper surface of the support frame (41) is connected to a first suction pipe (42) having one end connected to the slag discharge port (5), and an upper surface of the support frame (41) is connected to a second suction pipe (43) having one end connected to the feeding port (2).

7. The tea screening device for convenient grading and screening according to claim 6, characterized in that: A rectangular hole for the collection box (46) to slide is provided on a side of the support frame (41) away from the screening bin (1), and a handle is fixedly connected to the outer side of the collection box (46).

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