Vibrating screen for black tea production

Abstract

The utility model discloses a black tea production vibrating screen which comprises a screening box and a vibrating motor arranged at the top of the screening box, the top of the screening box is communicated with a feeding pipe used for placing black tea into the screening box, and two parallel screens used for screening the black tea are installed on the inner wall of the screening box. The inner wall of the screen is in sliding connection with a baffle used for reducing the falling speed of the black tea on the screen. According to the black tea screening device, when black tea is screened, a rotating motor drives a reciprocating lead screw to rotate, the reciprocating lead screw enables a movable plate to move through threads, the movable plate drives a baffle to move up and down in a reciprocating mode, and when the baffle moves upwards, the black tea on the screen is prevented from rolling down, so that the black tea screening time of the screen can be prolonged; therefore, the screening efficiency of the screen mesh on the black tea is improved, and the screening efficiency of the vibrating screen is prevented from being influenced by mixing part of crushed black tea leaves into high-quality black tea.

Description

TECHNICAL FIELD

[0001] The utility model relates to black tea technical field especially relates to a black tea production vibrating screen. BACKGROUND

[0002] Black tea is one of basic tea classes, belongs to full fermentation tea class, is with tea tree bud leaf as raw material, through withering, rolling, fermentation, drying etc. Typical process of refining, wherein fermentation is the key procedure of black tea processing, because its dry tea color and the tea soup with red as the main tone are named, famous black tea has Anhui Qimen black tea, Yunnan Dianhong, Hainan red broken tea, Fujian Zhengshan small kind etc.

[0003] The existing black tea production vibrating screen is inclined when using, and the black tea will fall off from the screen, but because the quantity of black tea is large and the falling speed is too fast, many broken black tea leaves are not screened by the screen before falling down, which affects the screening effect of the vibrating screen. UTILITY MODEL CONTENT

[0004] The utility model discloses a black tea production vibrating screen, which can slow down the rolling speed of black tea through the baffle and make the baffle move up and down through the reciprocating screw rod, thereby avoiding the mixing of broken black tea leaves into high-quality black tea and affecting the screening efficiency of the vibrating screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A black tea production vibrating screen, comprising a screening box and a vibrating motor on the top of the screening box, a feeding pipe for putting black tea into the screening box is connected to the top of the screening box, two parallelly arranged screening meshes for screening black tea are installed on the inner wall of the screening box, a baffle for slowing down the falling speed of black tea on the screening mesh is slidably connected to the inner wall of the screening mesh, a movable plate for driving the baffle to move is fixedly connected to the bottom of the baffle, a reciprocating screw rod for making the movable plate move up and down is installed on one side of the screening box, and a rotating motor for driving the reciprocating screw rod to rotate is installed at the bottom of the reciprocating screw rod.

[0007] Preferably, the heights of the two screening meshes are not the same, and the screen hole diameter of the higher screening mesh is larger than that of the lower screening mesh.

[0008] Preferably, a sealing plate for preventing tea leaves from flying out of the screening box is slidably connected to the inner wall of the screening box, and a spring for pushing the sealing plate to move upward is fixedly connected to the inner wall of the screening box.

[0009] Therefore, the utility model has the beneficial effects that:

[0010] In the application, when the black tea is screened, the rotary motor drives the reciprocating screw rod to rotate, the reciprocating screw rod moves the movable plate through the screw thread, the movable plate drives the baffle to move up and down, the baffle hinders the black tea on the screen from rolling down when moving up, which can prolong the screening time of the screen on the black tea, thereby improving the screening efficiency of the screen on the black tea, thereby avoiding that part of the broken black tea is mixed into the high-quality black tea to affect the screening efficiency of the vibrating screen. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 An overall structure schematic view is shown according to an embodiment of the utility model;

[0012] Figure 2 A screening box structure sectional view is shown according to an embodiment of the utility model;

[0013] Figure 3 An A part structure enlarged view of Figure 2 is shown according to an embodiment of the utility model;

[0014] Figure 4 A baffle and reciprocating screw rod structure distribution diagram is shown according to an embodiment of the utility model.

[0015] LEGEND:

[0016] 1, screening box, 2, vibrating motor, 3, feed pipe, 4, screen, 5, baffle, 6, movable plate, 7, reciprocating screw rod, 8, rotary motor, 9, sealing plate, 10, spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0019] Embodiment one:

[0020] As Figures 1-4As shown, a black tea production vibrating screen, including a screening box 1 and a vibrating motor 2 on the top of the screening box 1, the top of the screening box 1 is communicated with a feeding pipe 3 for putting black tea into the inside of the screening box 1, the inner wall of the screening box 1 is installed with two parallelly arranged screening meshes 4 for screening the black tea, the inner wall of the screening mesh 4 is slidably connected with a baffle 5 for slowing down the falling speed of the black tea on the screening mesh 4, the number of the baffles 5 is multiple and the multiple baffles 5 are linearly and equidistantly arranged in sequence, the bottom of the baffle 5 is fixedly connected with a movable plate 6 for driving the baffle 5 to move, the number of the movable plates 6 is two and the two movable plates 6 are both threadedly connected to the outer wall of a reciprocating screw rod 7, one side of the screening box 1 is installed with the reciprocating screw rod 7 for moving the movable plate 6 up and down, the bottom of the reciprocating screw rod 7 is installed with a rotating motor 8 for driving the reciprocating screw rod 7 to rotate.

[0021] Example two:

[0022] The technical scheme is basically the same as that of example one, and the difference is that, as shown in the figure, Figure 2 The heights of the two screening meshes 4 are not the same, and the screen hole diameter of the higher screening mesh 4 is larger than that of the lower screening mesh 4.

[0023] Example three:

[0024] The technical scheme is basically the same as that of example one, and the difference is that, as shown in the figure, Figure 4 The inner wall of the screening box 1 is slidably connected with a sealing plate 9 for preventing tea from flying out of the screening box 1, the sealing plate 9 can also prevent external dust from entering the inside of the screening box 1 to contaminate the tea, the inner wall of the screening box 1 is fixedly connected with a spring 10 for pushing the sealing plate 9 to move upward, and the spring 10 is fixedly connected to the bottom of the sealing plate 9.

[0025] As described above, when the black tea is screened by the black tea production vibrating screen provided in the embodiment, the staff will turn on the rotating motor 8, and the rotating motor 8 will drive the reciprocating screw rod 7 to rotate. Since the movable plate 6 is limited by the screening box 1 and can only move vertically up and down, the reciprocating screw rod 7 will make the movable plate 6 move vertically up and down reciprocatingly through the thread, and the movable plate 6 will drive the baffle 5 to move up and down. When the baffle 5 moves upward, it will hinder the black tea on the screening mesh from rolling off, and when the baffle 5 moves downward, it will make the black tea roll off the screening mesh 4. In this way, the screening time of the screening mesh 4 on the black tea can be improved, thereby improving the screening efficiency of the screening mesh 4 on the black tea, avoiding the mixing of part of the broken black tea into the high-quality black tea, and affecting the screening efficiency of the vibrating screen, and the top and bottom of the movable plate 6 are both abutted with the sealing plate 9, which can not only prevent external dust from entering the inside of the screening box 1 when the movable plate 6 moves, but also prevent the tea in the inside of the screening box 1 from flying out.

[0026] The foregoing description of the embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibrating screen for black tea production, comprising a screening box (1) and a vibrating motor (2) on top of the screening box (1), characterized in that, The top of the screening box (1) is connected to a feed pipe (3) for putting black tea into the screening box (1). The inner wall of the screening box (1) is equipped with two parallel screens (4) for screening black tea. The inner wall of the screens (4) is slidably connected to a baffle (5) for slowing down the falling speed of black tea on the screens (4). The bottom of the baffle (5) is fixedly connected to a movable plate (6) for moving the baffle (5). A reciprocating screw (7) for moving the movable plate (6) up and down is installed on one side of the screening box (1). A rotary motor (8) for driving the reciprocating screw (7) to rotate is installed at the bottom of the reciprocating screw (7).

2. The vibrating screen for black tea production according to claim 1, characterized in that, The two screens (4) are not at the same height, and the screen hole diameter of the higher screen (4) is greater than that of the lower screen (4).

3. The vibrating screen for black tea production according to claim 1, characterized in that, The inner wall of the screening box (1) is slidably connected to a sealing plate (9) to prevent tea leaves from flying out of the screening box (1), and the inner wall of the screening box (1) is fixedly connected to a spring (10) to push the sealing plate (9) to move upward.

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