CN211330277U

CN211330277U - Tea leaf grading and screening device

Info

Publication number: CN211330277U
Application number: CN201922031753.XU
Authority: CN
Inventors: 韩湿骏
Original assignee: Guizhou Bolian Tea Co ltd
Current assignee: Guizhou Bolian Tea Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-25
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to the technical field of tea automatic processing equipment, and discloses a tea grading and screening device, which comprises a frame and a conveying mechanism for conveying tea, wherein one side of the conveying mechanism is provided with a screening mechanism, the screening mechanism comprises a screen and a screen frame for fixing the screen, the screen frame is fixed with the frame, and one side of the screen frame, which is close to the conveying mechanism, is higher than one side of the screen frame, which is far away from the conveying mechanism; a plurality of mounting openings are linearly distributed on the screen frame, screens are detachably and fixedly arranged in the mounting openings, and the screen mesh diameter which is farther away from the conveying mechanism is larger; and a discharge opening is formed in one end, far away from the conveying mechanism, of the net frame. This scheme of adoption can solve prior art and sieve the time to tealeaves automatically, causes the technical problem of secondary damage easily to tealeaves.

Description

Tea leaf grading and screening device

Technical Field

The utility model relates to a technical field of tealeaves automated processing equipment, concretely relates to tealeaves grading and screening device.

Background

The grade of tea is classified according to the appearance, color, fineness, purity, inner quality, aroma, mellow taste, liquor color and leaf bottom of the strip cable of the tea according to the national standard 'basic conditions of tea sense examination and evaluation room'. The tea is classified into a plurality of grades such as tight and thin tea, fat and strong tea, thick tea and loose tea according to the appearance of the strip cable, but in the traditional process, the tea is generally classified in a manual selection mode, so that the working efficiency of tea frying is low; so someone has researched and developed screening plant, but mostly put into screening section of thick bamboo with tealeaves in, the rotation through screening section of thick bamboo sieves, the condition that tealeaves and screening section of thick bamboo collided each other appears very easily, leads to tealeaves the secondary damage, leads to the whole decline of quality of tealeaves.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide tealeaves grading screening plant to solve prior art and sieve the time, cause the technical problem of secondary damage to tealeaves easily automatically.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the tea leaf grading and screening device comprises a rack and a conveying mechanism for conveying tea leaves, wherein one side of the conveying mechanism is provided with a screening mechanism, the screening mechanism comprises a screen and a screen frame for fixing the screen, the screen frame is fixed with the rack, and one side of the screen frame, which is close to the conveying mechanism, is higher than one side of the screen frame, which is far away from the conveying mechanism; a plurality of mounting openings are linearly distributed on the screen frame, screens are detachably and fixedly arranged in the mounting openings, and the screen mesh diameter which is farther away from the conveying mechanism is larger; and a discharge opening is formed in one end, far away from the conveying mechanism, of the net frame.

The principle and the advantages of the scheme are as follows: the tea leaf screening mechanism can stably transport tea leaves and convey the tea leaves to the screening mechanism; the net frame is obliquely arranged, so that the tea can slide to a lower position under the action of self gravity, the purpose that the tea sequentially passes through a plurality of screen meshes is achieved, and the aperture of each screen mesh is larger as the screen mesh is farther away from the conveying mechanism, so that the purpose of screening the particle size of the tea is achieved; the screen and the screen frame are detachably and fixedly connected, so that a user can replace the screen with different apertures according to the requirement, and meanwhile, when the screen is damaged, only one screen needs to be replaced, so that the maintenance cost of the screening mechanism is reduced; the end part of the net frame is provided with a discharge opening for discharging unformed tea leaves or other impurities with larger sizes in the tea leaves.

Preferably, as an improvement, the upside of transport mechanism is equipped with adsorption apparatus structure, and adsorption apparatus structure is including adsorbing mouth, negative pressure machine and containing box, and negative pressure machine and containing box all are fixed with the frame, are equipped with in the containing box and accomodate the chamber, adsorb the mouth and accomodate the chamber and be linked together through first hose, and the air intake and the first hose of negative pressure machine are linked together.

The negative pressure machine of this scheme can provide the negative pressure for first hose, makes absorption port department produce the negative pressure to adsorb the impurity of light such as dust, piece that mix in the tealeaves and accomodate the chamber and unify the processing, thereby realized the prescreening to tealeaves, further improved the quality of tealeaves.

Preferably, as a modification, an end of the suction port near the transport mechanism is designed to be flat in a width direction of the transport mechanism.

This scheme can decompose negative pressure machine's production negative pressure, avoids the negative pressure too to concentrate and leads to the not thorough condition of prescreening to tealeaves, also can avoid the negative pressure too to concentrate simultaneously, leads to the negative pressure too big, with the condition that partial tealeaves also adsorbed.

Preferably, as an improvement, a filter screen is fixedly arranged between the negative pressure machine and the first hose.

The filter screen of this scheme can avoid the condition that negative pressure machine is blockked up.

Preferably, as an improvement, the downside of screen frame slides and is equipped with the tea frame that is used for holding tealeaves, and the quantity of tea frame is the same with the quantity of installing port, and tea frame and installing port one-to-one.

The tea frame of this scheme can be deposited tealeaves respectively, avoids the condition that tealeaves mixes once more.

Preferably, as an improvement, the conveying mechanism comprises a conveying belt and two conveying rollers for driving the conveying belt, the conveying rollers are rotatably connected to the frame, and the conveying belt is tightened on the two conveying rollers.

The transportation mechanism of the scheme is simple in structure and convenient to use.

Preferably, as an improvement, the upside of transport mechanism still is equipped with the pipeline of blowing, and the one end of the pipeline of blowing is linked together with the air outlet of negative pressure machine, and the other end intercommunication of the pipeline of blowing has the mouth of blowing, and the mouth of blowing is fixed with the frame, and the mouth of blowing sets up towards transport mechanism slope.

According to the scheme, the one-way airflow generated at the air outlet of the negative pressure machine is guided to the upper side of the conveying mechanism through the air blowing pipeline and is blown to the tea leaves through the air blowing port, so that the travelling speed of the tea leaves can be slowed down, and the adsorption mechanism can conveniently perform primary screening on impurities in the tea leaves; simultaneously, the mouth of blowing of this scheme also can blow the remaining dust of part in the tealeaves, and the adsorption apparatus of being convenient for is unified to be collected.

Preferably, as an improvement, the lower side of the sieving mechanism is provided with a vibrating mechanism for vibrating the screen cloth.

This scheme enables the screen frame vibration, makes the tealeaves vibration thereupon on the screen frame to the speed that makes tealeaves screening is faster, and efficiency is higher.

Preferably, as an improvement, the vibration mechanism includes a cam, a rotating shaft is eccentrically and fixedly arranged on the cam, the rotating shaft is rotatably connected with the frame, and the rotating shaft is linked with the transportation mechanism.

This scheme is through transport mechanism's operation, drives the axis of rotation and rotates, and then drives the cam and rotate, and the cam rotates periodic striking screen frame to make the screen frame carry out periodic vibration.

Preferably, as an improvement, a breast board is fixedly arranged at one end of the net frame close to the transportation mechanism.

When the breast board of this scheme can avoid tealeaves to fall on the screen cloth, take place the striking and splash and fall the next door and lead to extravagant.

Drawings

Fig. 1 is a front sectional view of a tea classifying and screening device according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of an absorption opening in the first embodiment of the present invention.

Fig. 3 is a front sectional view of a second embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a rack 1, a conveying belt 2, a conveying roller 3, an adsorption port 4, a negative pressure machine 5, a storage box 6, a first hose 7, a second hose 8, a blowing pipeline 9, a blowing port 10, a screen 11, a screen frame 12, a tea frame 13, a baffle plate 14, a discharge port 15, a cam 16, a rotating shaft 17, a belt 18, a protective side plate 19 and a silk screen 20.

Example one

As shown in figure 1: tealeaves classifying screen divides device, which comprises a frame 1, transport mechanism, adsorption apparatus constructs and screening mechanism, transport mechanism includes conveyer belt 2 and two transfer rollers 3 that are used for driving

conveyer belt

2, 3 rotations of transfer roller are connected in frame 1, conveyer belt 2 tightens on two transfer rollers 3, the linkage has driving motor (not shown in the figure) on the transfer roller 3, it rotates to use driving motor to drive transfer roller 3, and then drive 2 pivoted modes of conveyer belt be prior art, do not do the repeated description here, pass through the bolt fastening with driving motor in frame 1, driving motor's output shaft and one of them 3 coaxial fixed joints of transfer roller can. Here, both sides of the conveyor belt 2 are also provided with protective side plates 19, and the protective side plates 19 are fixedly clamped with the rack 1; the upper sides of the two protective side plates 19 are fixedly connected with a wire mesh 20 through threads, and meshes on the wire mesh 20 are smaller than the size of the tea leaves.

As shown in fig. 1, the adsorption mechanism is arranged on the upper side of the transportation mechanism, the adsorption mechanism comprises an adsorption port 4, a negative pressure machine 5 and a containing box 6, the containing box 6 is fixed on the frame 1 through bolts, and a containing cavity is arranged in the containing box 6; adsorb mouthful 4 and tie up tightly and fix in frame 1, and adsorb mouthful 4 and be located silk screen 20 directly over, adsorb mouthful 4 through first hose 7 with accomodate the right side wall in chamber and communicate mutually, the lower extreme of adsorbing mouthful 4 sets to the platykurtic as shown in figure 2 along the width direction of conveyer belt 2, is equipped with a plurality of absorption round holes on the lower terminal surface of adsorbing mouthful 4. Negative pressure machine 5 passes through the bolt fastening in frame 1, and the intercommunication has second hose 8 on negative pressure machine 5's the air intake, and second hose 8 and the top intercommunication of accomodating the chamber to make second hose 8 and first hose 7 be linked together. The lower extreme of second hose 8 is equipped with the filter screen, specifically is that the filter screen tightens at the lower extreme of second hose 8 and uses the iron wire bundle to tighten, then with the lower extreme of second hose 8 with insert accomodate the intracavity and with accomodate 6 chucking sealing fixation. The containing box 6 is also provided with a cleaning opening (not shown in the figure) for cleaning the scraps, and the cleaning opening is hinged with a switch door. The upside of transport mechanism still is equipped with blowing pipeline 9, and the upper end of blowing pipeline 9 is linked together with the air outlet of negative pressure machine 5, and the lower extreme intercommunication of blowing pipeline 9 has blowing mouth 10, and blowing mouth 10 is fixed with frame 1, and the lower extreme of blowing mouth 10 sets up to the left bank, and blowing mouth 10 is located silk screen 20 directly over.

As shown in fig. 1, the screening mechanism includes a screen 11 and a screen frame 12 for fixing the screen 11, the screen frame 12 is fixed to the frame 1 by bolts, the screen frame 12 is inclined from high to low, and an included angle between the screen frame 12 and a horizontal plane is 2-15 °, which is described here by taking 2 ° as an example; a plurality of mounting ports are linearly distributed on the net frame 12 along the horizontal direction, two mounting ports are shown in the figure as an example, the two mounting ports are internally and fixedly provided with the screen 11 through bolts, and the aperture of the screen 11 on the left side is smaller than that of the screen 11 on the right side. The downside of screen frame 12 is equipped with the tea frame 13 that is used for holding tealeaves through the spout slip, and the quantity of tea frame 13 is the same with the quantity of installing port, and tea frame 13 and installing port one-to-one. Here, as shown in the figure, a space is provided between adjacent mounting openings, and the width of the tea frame 13 is larger than that of the mounting openings.

A breast board 14 is fixedly clamped at the left end of the net frame 12. The right-hand member of screen frame 12 is equipped with discharge opening 15, specifically is that the right part of screen frame 12 is smooth dull and stereotyped, and the right side of screen frame 12 adopts the open design, makes bulky tealeaves to certain degree promptly unable screening through screen cloth 11, can only move right behind the right-hand member of screen frame 12, falls down under the effect of gravity and unloads. A collection box is placed on the lower side of the discharge opening 15.

The specific implementation process is as follows: starting a driving motor, wherein the driving motor drives the conveying roller 3 to rotate clockwise so as to drive the conveying belt 2 to rotate; at the same time, the negative pressure machine 5 is started to periodically operate the negative pressure machine 5, and here, the operation is stopped for twenty minutes and five seconds are taken as an example, so that the negative pressure can be periodically generated at the adsorption port 4. The tea leaves are then fed onto the conveyor belt 2 from the left end of the conveyor belt 2 so that the conveyor belt 2 can transport the tea leaves evenly to the right side of the transport mechanism.

In the tea transportation process, when the tea is transported to the position right below the adsorption port 4, dust, hair or other light impurities in the tea can be adsorbed into the containing cavity in the containing box 6 by the adsorption port 4, so that the impurities are uniformly collected; the adsorption port 4 of the scheme is designed to be flat, negative pressure can be uniformly formed above the conveyor belt 2, all tea leaves passing through the adsorption port 4 can be primarily screened and cleaned, and even if the power of the negative pressure machine 5 is larger or the power fluctuates in the period, the tea leaves are protected by the silk screen 20 and cannot be sucked into the containing cavity; the filter screen of this scheme can avoid impurity to get into negative pressure machine 5, leads to the condition of negative pressure machine 5 jam, and simultaneously, negative pressure machine 5 can stop five seconds every twenty minutes of operation, makes the impurity ability fall from the filter screen to the condition of adhesion on the filter screen has been avoided piling up to impurity.

When the tea leaves are transported to the position right facing the air blowing opening 10, the tea leaves can be cleaned again by the unidirectional air flow blown out from the air blowing opening 10, and the impurities in the tea leaves are ensured to be cleaned more thoroughly. Meanwhile, during the period that the negative pressure machine 5 stops operating, tea leaves cannot be cleaned by the adsorption port 4, but when the tea leaves are transported to the position of the air blowing port 10, the negative pressure machine 5 is started again, so that the tea leaves can reach the cleaning effect of the primary screening under the effect of the air blowing port 10, and therefore the condition that the tea leaves entering the screening mechanism are all cleaned through the primary screening is ensured.

When tea leaves are transported to the right end of the conveyor belt 2, the tea leaves can fall into the net frame 12 downwards under the action of gravity, and at the moment, the baffle plate 14 can avoid the situation that the tea leaves splash to the ground from the side to cause pollution; after falling into the screen frame 12, the tea leaves move rightwards under the action of gravity, so that the tea leaves sequentially pass through the screens 11 with different apertures and fall into different tea frames 13 respectively, and the purpose of screening the tea leaves with different particle sizes is achieved; the tea leaves or other larger impurities which cannot pass through the screen 11 are not formed and fall into the collection box through the discharge opening 15.

Therefore, the transportation mechanism can stably transport the tea leaves and convey the tea leaves to the screening mechanism; the net frame 12 is obliquely arranged, so that tea can slide to a lower position under the action of self gravity, the purpose that the tea sequentially passes through the plurality of screen meshes 11 is achieved, and the aperture of each screen mesh 11 is larger as the screen mesh is farther away from the conveying mechanism, so that the purpose of screening the particle size of the tea is achieved; the screen mesh 11 and the screen frame 12 are detachably and fixedly connected, so that a user can replace the screen mesh 11 with different apertures according to needs, and meanwhile, when the screen mesh 11 is damaged, only one screen mesh 11 needs to be replaced, so that the maintenance cost of the screening mechanism is reduced; the end of the net frame 12 is provided with a discharge opening 15 for discharging unformed tea leaves or other impurities with larger sizes in the tea leaves.

Example two

As shown in fig. 3, the present embodiment is different from the first embodiment in that a vibrating mechanism for vibrating the screen cloth 11 is disposed at a lower side of the sieving mechanism, the vibrating mechanism includes a cam 16, the cam 16 is located right below the screen cloth 11 at a middle portion of the frame 12, a rotating shaft 17 is eccentrically and fixedly disposed on the cam 16, a distance between the rotating shaft 17 and a lower surface of the frame 12 is smaller than a distance between a protruding portion of the cam 16 and the rotating shaft 17, the rotating shaft 17 is rotatably connected to the frame 1 through a bearing, and the rotating shaft 17 is linked to the conveying roller 3 through a belt 18.

When this scheme of use, transfer roller 3 drives 2 operation of conveyer belt, can also drive cam 16 and rotate, makes cam 16 periodically bump with screen cloth 11 to make screen cloth 11 take place to vibrate, avoided tealeaves the accumulational condition on screen cloth 11. When the tea leaves fall on the screen mesh 11 on the left side, the tea leaves can continuously slide to the right under the action of gravity because of certain gravity acceleration, so that the cam 16 of the scheme only impacts the screen mesh 11 on the right side, the tea leaves can be kept in a right-walking state, the abrasion on the screen mesh 11 can be reduced, and the maintenance cost of equipment is reduced.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Tealeaves classifying screen divides device, including the frame and be used for transporting the transport mechanism of tealeaves, its characterized in that: a screening mechanism is arranged on one side of the conveying mechanism, the screening mechanism comprises a screen and a screen frame for fixing the screen, the screen frame is fixed with the rack, and one side of the screen frame close to the conveying mechanism is higher than one side far away from the conveying mechanism; a plurality of mounting openings are linearly distributed on the screen frame, screens are detachably and fixedly arranged in the mounting openings, and the screen mesh diameter which is farther away from the conveying mechanism is larger; and a discharge opening is formed in one end, far away from the conveying mechanism, of the net frame.

2. The tea classifying and screening device according to claim 1, wherein: the upside of transport mechanism is equipped with adsorption apparatus and constructs, and adsorption apparatus constructs including adsorbing mouth, negative pressure machine and containing box, and negative pressure machine and containing box all are fixed with the frame, are equipped with in the containing box and accomodate the chamber, adsorb the mouth and accomodate the chamber and be linked together through first hose, and the air intake and the first hose of negative pressure machine are linked together.

3. A tea leaf classifying and screening apparatus as claimed in claim 2, wherein: one end of the adsorption port close to the conveying mechanism is designed to be flat along the width direction of the conveying mechanism.

4. A tea leaf classifying and screening apparatus as claimed in claim 2, wherein: a filter screen is fixedly arranged between the negative pressure machine and the first hose.

5. The tea classifying and screening device according to claim 1, wherein: the downside of screen frame slides and is equipped with the tea frame that is used for holding tealeaves, and the quantity of tea frame is the same with the quantity of installing port, and tea frame and installing port one-to-one.

6. The tea classifying and screening device according to claim 1, wherein: the conveying mechanism comprises a conveying belt and two conveying rollers used for driving the conveying belt, the conveying rollers are rotatably connected to the rack, and the conveying belt is tightened on the two conveying rollers.

7. The tea classifying and screening device according to claim 1, wherein: the upside of transport mechanism still is equipped with the pipeline of blowing, and the one end of the pipeline of blowing is linked together with the air outlet of negative pressure machine, and the other end intercommunication of the pipeline of blowing has the mouth of blowing, and the mouth of blowing is fixed with the frame, and the mouth of blowing sets up towards transport mechanism slope.

8. The tea classifying and screening device according to claim 1, wherein: and a vibrating mechanism for vibrating the screen is arranged on the lower side of the screening mechanism.

9. The tea classifying and screening device according to claim 8, wherein: the vibrating mechanism comprises a cam, a rotating shaft is eccentrically and fixedly arranged on the cam, the rotating shaft is rotatably connected with the rack, and the rotating shaft is linked with the conveying mechanism.

10. The tea classifying and screening device according to claim 1, wherein: and a breast board is fixedly arranged at one end of the net frame, which is close to the transportation mechanism.