CN219356827U - Tea screening device - Google Patents

Abstract

The utility model discloses a tea screening device, and relates to the technical field of tea production; comprises a sieve barrel and a driving device for driving the sieve barrel to rotate by taking a vertical axis of the sieve barrel as a rotating shaft; the inside of the screen barrel is provided with a plurality of screens from top to bottom, the pore diameters of the screens are gradually reduced from top to bottom, and the central height of each screen is lower than the height of the edge of the screen; the plurality of screens are arranged in the screen barrel, and the screen holes of the screens are reduced from top to bottom, so that the tea can be subjected to multistage screening; through setting up and making the screen drum uses self vertical axis to carry out pivoted drive arrangement as the pivot, and the central height of every screen cloth is less than the height at screen cloth edge, can make a plurality of screens of screen drum inside carry out synchronous rotation when drive arrangement drives the screen drum and rotate to make tealeaves see through from the lateral wall of screen cloth under the effect of centrifugal force, and then realize accelerating the mesh of screening speed.

Description

Tea screening device

Technical Field

The utility model relates to the technical field of tea production, in particular to a tea screening device.

Background

Tea is commonly called tea, and comprises catechin, cholestenone, caffeine, inositol, folic acid, pantothenic acid and the like, is beneficial to health, can be directly soaked in boiled water, and is classified into six categories according to variety and manufacturing mode and product appearance. The tea drink starts in China and can be classified into spring tea, xia Cha tea, autumn tea and winter tea according to seasons. The tea is prepared from various raw tea or refined tea, and is divided into scented tea, compressed tea, extractive tea, medicinal health tea, tea food, tea beverage, etc.

In order to improve the tea quality, in the prior art, a first-stage screening device is often adopted to screen out the broken residues; however, in addition to the crushed tea residues, the sun-dried tea leaves also need to be classified and screened, so that the tea leaves with different sizes can be obtained, and classified sales or classified utilization of the tea leaves can be realized.

Disclosure of Invention

The utility model aims to provide a tea screening device which can screen tea with different sizes so as to obtain the tea with different sizes and improve the grading utilization of the tea.

The utility model aims at realizing the following technical scheme:

a tea screening device comprises a screening barrel and a driving device, wherein the driving device drives the screening barrel to rotate by taking a vertical axis of the driving device as a rotating shaft; the inside of screen bucket is provided with a plurality of screens from top to bottom, and the sieve mesh aperture of a plurality of screens reduces from top to bottom gradually, and the central height of every screen cloth is all less than the height at screen cloth edge.

In the scheme, the plurality of screens are arranged in the screening barrel, and the meshes of the screens are reduced from top to bottom, so that the tea can be screened in multiple stages; through setting up and making the screen drum uses self vertical axis to carry out pivoted drive arrangement as the pivot, and the central height of every screen cloth is less than the height at screen cloth edge, can make a plurality of screens of screen drum inside carry out synchronous rotation when drive arrangement drives the screen drum and rotate to make tealeaves see through from the lateral wall of screen cloth under the effect of centrifugal force, and then realize accelerating the mesh of screening speed.

Preferably, the vertical section of the screen is arc-shaped or V-shaped.

In the scheme, the structure of the screen is further limited, and the vertical section of the screen is set to be arc-shaped or V-shaped, so that tea leaves can enter the next screen along the side wall of the screen under the action of centrifugal force, and the screening speed and the screening efficiency are improved.

Preferably, the driving device comprises a motor arranged below the sieve barrel and a supporting plate for fixing the motor, and the output end of the motor is fixedly connected with the bottom of the sieve barrel; the sieve barrel is in rotary fit with the supporting plate through a first rotary device.

In the scheme, the structure of the driving device is further limited, and the screen barrel synchronously rotate through the motor, so that the purpose of multi-stage screening is achieved.

Preferably, the first rotating device comprises a first rotating ring arranged at the bottom of the sieve barrel and an annular groove formed in the top of the supporting plate, and the first rotating ring is in rotating fit with the annular groove.

In the above scheme, the structure of the first rotating device is limited, when the sieve barrel rotates, the first rotating ring synchronously rotates in the annular groove, so that the sieve barrel rotates smoothly, and meanwhile, the annular groove and the first rotating ring support the sieve barrel.

Preferably, the screening barrels are divided into a plurality of screening layers by the screening screens, and the side wall of each screening layer corresponding to the screening barrel is provided with a discharging door.

In the scheme, the discharging door is arranged on the side wall of each screening layer, so that the screened tea leaves can be taken out from the discharging door conveniently.

Preferably, the tea screening device is further provided with a second rotating device for enabling the screening barrel to rotate by taking a horizontal axis where the center point of the screening barrel is located as a rotating shaft, and a limiting device for limiting the supporting plate to rotate by taking the horizontal axis of the screening barrel as the rotating shaft.

In the above-mentioned scheme, through second rotating device, can make the sieve barrel rotate, and then make the sieve barrel when rotating, improve the convenience of getting the material.

Preferably, the second rotating device comprises a second rotating ring sleeved outside the sieve barrel and rotationally connected with the sieve barrel, rotating shafts symmetrically and coaxially arranged on the outer walls of two sides of the second rotating ring, and supporting columns for supporting the rotating shafts.

In the scheme, the structure of the second rotating device is further limited, and the support of the sieve barrel can be jointly exerted by arranging the second rotating ring, the rotating shaft and the support column; through making the rotation connection between axis of rotation and the second swivel becket, can make the sieve barrel rotate, and then make the sieve barrel when rotating, improve the convenience of getting the material.

Preferably, the discharging door is arranged on a radial line of the sieve barrel which is mutually perpendicular to the rotating shaft.

In the scheme, the sieve barrel can be ensured to be smoothly poured out from the discharging door when the sieve barrel is used for pouring materials.

Preferably, the limiting device comprises a bolt arranged between the support column and the support plate.

In the scheme, the supporting plate and the supporting column can be fixed by arranging the bolts, so that the stability of the screen barrel during working is improved; avoid appearing unstable phenomenon at screen cloth during operation, screen drum, backup pad.

Compared with the prior art, the utility model has the beneficial effects that:

the plurality of screens are arranged in the screen barrel, and the screen holes of the screens are reduced from top to bottom, so that the tea can be subjected to multistage screening; through setting up and making the screen drum uses self vertical axis to carry out pivoted drive arrangement as the pivot, and the central height of every screen cloth is less than the height at screen cloth edge, can make a plurality of screens of screen drum inside carry out synchronous rotation when drive arrangement drives the screen drum and rotate to make tealeaves see through from the lateral wall of screen cloth under the effect of centrifugal force, and then realize accelerating the mesh of screening speed.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model in elevation;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model in a top view;

FIG. 4 is a schematic view of the left-view direction of the present utility model;

FIG. 5 is a schematic view of a cross-sectional structure of the screen drum of the present utility model in a left-looking direction;

in the figure: 100-sieve barrels, 110-driving devices, 120-sieves, 112-motors, 113-supporting plates, 130-first rotating devices, 131-first rotating rings, 132-annular grooves, 140-sieving layers, 150-discharging doors, 160-second rotating devices, 161-second rotating rings, 162-rotating shafts, 163-supporting columns and 170-bolts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to fig. 1 to 5, but the scope of the present utility model is not limited to the following description.

Example 1

A tea sieving device, as shown in figure 1, comprises a sieve barrel 100 and a driving device 110 for driving the sieve barrel 100 to rotate by taking a vertical axis of the sieve barrel as a rotating shaft; a feed inlet is formed in the top of the screen drum 100; the inside of the screen drum 100 is provided with a plurality of screens 120 from top to bottom, the mesh apertures of the plurality of screens 120 gradually decrease from top to bottom, and the center height of each screen 120 is lower than the height of the edges of the screen 120. Further, the vertical section of the screen 120 is arc-shaped or V-shaped, and in this embodiment, the vertical section of the screen 120 is V-shaped, as shown in fig. 1. Specifically, the driving device 110 includes a motor 112 disposed below the screen drum 100, and a supporting plate 113 for fixing the motor 112, where an output end of the motor 112 is fixedly connected to the bottom of the screen drum 100; the screen drum 100 is rotatably coupled to the support plate 113 by a first rotating means 130. Further, as shown in fig. 1 and 4, the first rotating device 130 includes a first rotating ring 131 disposed at the bottom of the screen drum 100 and an annular groove 132 formed at the top of the supporting plate 113, the first rotating ring 131 is rotatably matched with the annular groove 132, and in practical implementation, in order to ensure that the first rotating ring 131 smoothly rotates in the annular groove 132, a plurality of balls (not shown) may be disposed at the bottom of the first rotating ring 131

In specific implementation, the tea leaves to be dried are added onto the uppermost screen 120 along the feed inlet, then the motor 112 is turned on, and under the action of the motor 112, the screen barrel 100 and the plurality of screens 120 are driven to synchronously rotate, so that the tea leaves on the screens 120 quickly penetrate through the screens 120 to enter the next screen 120 under the action of centrifugal force, the purpose of classifying and screening is finally realized, and finally the sizes of the tea leaves obtained in the screens 120 are sequentially reduced from top to bottom, so that the tea leaves can be classified and utilized or sold. During screening, the first rotating ring 131 rotates in the annular groove 132, thereby supporting the screen drum 100.

Example 2

Based on embodiment 1, the screening drums 100 are divided into a plurality of screening layers 140 by the plurality of screens 120, the side wall of the screening drum 100 corresponding to each screening layer 140 is provided with a discharge door 150, and when the screens 120 work, the discharge doors 150 can be tightly closed, and the closing mode is not limited; further, the tea screening device is further provided with a second rotating device for rotating the screening barrel 100 by taking a horizontal axis (a central line of the two rotating shafts 162) where the central point of the screening barrel is located as a rotating shaft, and a limiting device for limiting the supporting plate 113 to rotate by taking the horizontal axis of the screening barrel 100 as the rotating shaft; the discharge gate 150 is disposed on a radial line of the screen drum 100 perpendicular to the rotation shaft 162. Further, the second rotating device 160 includes a second rotating ring 161 sleeved outside the screen drum 100 and rotatably connected to the screen drum 100, a rotating shaft 162 symmetrically and coaxially disposed on outer walls of both sides of the second rotating ring 161, and a supporting column 163 for supporting the rotating shaft 162. Further, the limiting means includes bolts 170 provided between the supporting columns 163 and the supporting plates 113, and the number of bolts 170 may be appropriately increased in order to improve the limiting stability.

In particular, when the screen drum 100 is screened, the supporting plate 113 and the supporting columns 163 are required to be fixed by using the bolts 170, so as to fix the supporting plate 113 and the screen drum 100, in addition, when the screen drum 100 rotates, the first rotating ring 131 synchronously rotates in the annular groove 132, the second rotating ring 161 synchronously rotates outside the screen drum 100, and in order to improve the rotation stability, a slot (not shown in the figure) for rotating the second rotating ring 161 can be formed around the outer wall of the screen drum 100; after screening is finished, the bolts 170 are removed, and then force is applied to the outside of the screen barrel 100 by hands, so that the screen barrel 100 rotates by taking the axis at which the center points of the two rotating shafts 162 are positioned as the rotating shaft, and in the rotating process, the screen barrel 100 can be gradually inverted, so that tea leaves in different screening layers 140 can slide to the discharge door 150 along the side wall of the screen 120, and the purpose of collecting the tea leaves in different screening layers 140 can be realized by opening the discharge door 150; to increase the collection rate, as shown in FIG. 5, the outfeed gate 150 in the uppermost screening layer 140 is positioned adjacent the top wall; the discharge doors 150 in the rest of the screening layers 140 are all arranged at the edges of the screens 120 at the upper parts of the screening layers 140, so that the tea leaves in the screening layers 140 can fall to the discharge doors 150 completely in the process of inverting the screening barrel 100, and the collection efficiency is improved.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "longitudinal," "transverse," and the like indicate an orientation or a positional relationship based on that shown in fig. 1, merely for convenience of describing the patent and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the patent.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein and is not to be considered as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either by the foregoing teachings or by the teaching of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (9)

1. The tea screening device is characterized by comprising a screening barrel (100) and a driving device (110) for driving the screening barrel (100) to rotate by taking a vertical axis of the screening barrel as a rotating shaft; the inside of screen bucket (100) is provided with a plurality of screens (120) from top to bottom, and the sieve mesh aperture of a plurality of screens (120) reduces from top to bottom gradually, and the center height of every screen (120) is less than the height at screen (120) edge.

2. A tea leaf screening device according to claim 1, wherein the screen (120) has an arcuate or V-shaped vertical cross-section.

3. A tea screening device according to claim 1, wherein the driving means (110) comprises a motor (112) arranged below the screening drum (100) and a supporting plate (113) for fixing the motor (112), and an output end of the motor (112) is fixedly connected with the bottom of the screening drum (100); the sieve barrel (100) is in rotary fit with the supporting plate (113) through a first rotary device (130).

4. A tea screening device according to claim 3, wherein the first rotating means (130) comprises a first rotating ring (131) arranged at the bottom of the screening drum (100) and an annular groove (132) arranged at the top of the supporting plate (113), wherein the first rotating ring (131) is in rotating fit with the annular groove (132).

5. A tea screening device according to claim 3, wherein a plurality of said screens (120) divide the screening drum (100) into a plurality of screening layers (140), and wherein the side walls of the screening drum (100) to which each screening layer (140) corresponds are provided with discharge gates (150).

6. A tea screening device according to claim 5, further comprising second rotation means (160) for rotating the screen drum (100) about a horizontal axis at which the center point of the screen drum is located, and limiting means for limiting the rotation of the support plate (113) about the horizontal axis of the screen drum (100).

7. A tea screening device according to claim 6, wherein the second rotating means (160) comprises a second rotating ring (161) sleeved outside the screening drum (100) and rotatably connected with the screening drum (100), rotating shafts (162) symmetrically and coaxially arranged on the outer walls of both sides of the second rotating ring (161), and supporting columns (163) for supporting the rotating shafts (162).

8. A tea screening device according to claim 7, wherein the discharge gate (150) is arranged on a radial line of the screen drum (100) perpendicular to the rotation axis (162).

9. A tea leaf screening device according to claim 7, characterized in that the limiting means comprise bolts (170) arranged between the support columns (163) and the support plates (113).