CN208213680U - A kind of orientation grading plant of fresh tea leaves picked by machine raw material - Google Patents

Abstract

The utility model discloses a directional grading device for machine-picked fresh tea leaf raw materials. Existing fresh tea leaf sorting devices cannot separate piles of machine-picked fresh tea leaves into different grades. The utility model includes a horizontal vibrating machine and an inclined vibrating classifier; the horizontal vibrating machine is composed of a first vibrating tank, a vibrating arm group, a vibrating chassis, a vibrating chassis and a first motor; the inclined vibrating classifying machine includes a vibrating tank group, a vibrating frame and base; the four-level second vibration grooves are arranged in order from high to low to form a vibration groove group. After the raw materials of machine-picked tea leaves are dispersed and tiled by wind blowing, the utility model arranges the fresh leaves of machine-picked tea in a longitudinal arrangement according to individual buds and leaves through the arrangement of guide leaves, and separates the fresh leaves of machine-picked tea through gap separation. The leaves are separated according to the length difference of each level, and the classification of fresh leaf raw materials for machine-picked tea is completed; that is, through winnowing treatment, wind blowing, dispersion and tiling, combined with the steps of guide leaf arrangement and gap separation of the utility model, the machine-picked fresh leaves are effectively realized. Oriented separation of fresh tea leaves.

Description

A device for directional grading of machine-picked fresh tea leaf raw materials

technical field

The utility model belongs to the technical field of tea screening, in particular to a directional grading device for machine-picked fresh tea leaf raw materials.

Background technique

At present, there are still many problems in the grading technology of machine-picked fresh leaves at home and abroad. Traditional fresh tea leaf grading technologies mainly include vibrating screening machines, roller screening machines and winnowing machines. For example, in 2012, Tang Xiaolin and others invented a machine-picked fresh tea leaf classifier, which uses a vibrating structure to make the fresh tea leaves continuously vibrate, bounce and flow forward, passing through screens with different apertures in turn to achieve multi-stage sorting. Purpose, this method has less damage to tea leaves; in 2013, Ren Guangxin of Zhejiang University and others designed a throwing bulk fresh tea leaf classifier using the throwing vibration method to continuously throw fresh tea leaves through the sieve holes, reducing the amount of tea leaves to a certain extent. Reduced the hanging rate of fresh tea leaves when passing through the sieve; in 2014, Xu Zizhang invented a fresh leaf grading machine, and the three-stage sieve set can carry out multi-level grading of fresh tea leaves; in 2015, the Chinese Academy of Agricultural Sciences Yuan Haibo and others from the Tea Research Institute invented a machine-harvested fresh leaf grading and classification processing method, using oval holes and circular holes in the vibrating sieve plate of the fresh leaf grading machine, to a certain extent, better grading Effect. These vibrating screening machines have a high net hanging rate, are easy to block holes, easily cause damage to fresh tea leaves, and are not efficient. Compared with the vibrating screening machine, the efficiency of the rolling screening machine is improved, and the phenomenon of fresh tea leaves hanging on the net is correspondingly reduced; in 2008, Luo Yaoping of Zhejiang University invented a famous fresh tea classifying machine, which made the drum into a Conical shape, the sieve area is constantly increasing, which can effectively sort fresh tea leaves; in 2014, Zhao Kelin invented a tea sorting equipment, the drum is placed at an angle, and one end is blown by a blower to reduce the rate of fresh tea leaves hanging on the net ; In 2016, Hu Yongguang of Jiangsu University and others invented a device and method for grading fresh tea leaves with equal diameter drums. A winnowing fan was installed below the feed belt, and a cleaning fan was installed above the drum to further reduce hanging. The mesh rate avoids the problem of screen blocking. The rolling sieve machine has high efficiency, simple principle, and low production cost. The above-mentioned inventions have also proposed various methods for cleaning the sieve holes, but the rolling sieve machine still has some problems of hanging nets and blocking holes, and the rolling sieve method screens Fresh tea leaves are more damaging to tea leaves, which is not conducive to the subsequent processing of tea leaves and affects the flavor of finished tea leaves. Different from the screening method, using wind separator to sort fresh tea leaves has the advantage of less damage to the fresh tea leaves; in 2014, Zhang Hong invented a tea classifier, which uses a blower to send air into the box, and the tea leaves are shaken off at the inlet. The fresh tea leaves are blown to different areas due to their different sizes, qualities and postures, and the fresh tea leaves can be divided into three grades. However, the winnowing effect of the winnowing machine is relatively poor, and the grading effect is not ideal. In addition to the typical grading equipment mentioned above, there are also combined grading methods. For example, in 2011, Zhang Lanlan and others from Zhejiang University found through experiments that the combination of self-made famous tea fresh leaf classifier (MCF) and winnowing has the best grading effect. ; In 2015, Yang Juan and others from the Tea Research Institute of the Chongqing Academy of Agricultural Sciences used a combination of a sieving machine and a fan to conduct a grading experiment on machine-picked fresh leaves, and found that the grading effect of machine-picked fresh leaves was significantly improved after being spread for a certain period of time; In 2016, Xia Xudong and others from Zhejiang Sci-Tech University invented a multi-stage differential fresh tea leaf sorting single-layer conveyor and a fresh tea leaf sorting method. The leaves are tiled for subsequent identification and sorting. These methods also have the problems of tea fresh leaf damage and low efficiency. In addition, there are various tea color sorting equipment, but tea color sorting is mostly used in dry tea sorting, which is not ideal for the grading of fresh tea leaves.

Contents of the invention

The purpose of the utility model is to provide a device for directional classification of machine-picked fresh tea leaf raw materials in view of the deficiencies in the prior art.

The above-mentioned purpose of the utility model is achieved through the following technical solutions:

The utility model includes a horizontal vibrating machine and an inclined vibrating classifier; the horizontal vibrating machine is composed of a first vibrating tank, a vibrating arm group, a vibrating chassis, a vibrating chassis and a first motor. The vibrating underframe includes a frame, a first transmission shaft, a first eccentric wheel, a first pulley and a vibration rocker; the first transmission shaft is supported on the frame through bearings; the first transmission shaft is fixed with a first The eccentric wheel and the first pulley; one end of the vibration rocker is hinged with the first eccentric wheel, and the other end is hinged with the counterweight of the vibration chassis; the base of the first motor is fixed on the frame, and the The first pulley is connected with the first pulley fixed on the first transmission shaft through a conveyor belt; the first vibration groove is composed of a concave multi-groove plate, a vibration groove frame, a screw group and a groove plate adjustment mechanism; the concave multi-groove Two screw groups are connected on both sides of the plate. The screw group is composed of two screws arranged at intervals. The two screws in each screw group are embedded in an adjustment slot corresponding to the vibration tank frame. The tails of all the screws are aligned with the concave multi-slot The disks are connected by threads; the concave multi-groove disk is provided with a plurality of guide vane grooves, and the length direction of the guide vane grooves is the transmission direction; the groove disk adjustment mechanism includes an adjustment rod, a gear and a rack; both ends of the adjustment rod are connected to the vibration The groove frame constitutes a rotating pair, and one end of the adjustment rod is provided with an adjustment handle; the gear is fixed on the adjustment rod and meshes with the rack; the rack is fixed at the bottom of the concave multi-groove plate; the vibration chassis is composed of a vibration chassis frame and a counterweight It consists of blocks; the counterweight is fixed on the vibrating chassis frame. The vibrating arm group is composed of four vibrating arms, and the four vibrating arms are arrayed on both sides of the first vibrating tank; the middle part of the vibrating arm is fixedly connected to the frame, the upper end is hinged to the vibrating tank frame, and the lower end is hinged to the vibrating chassis frame.

The inclined vibration classifier includes a vibrating tank group, a vibrating frame and a base; the four-stage second vibrating tanks are arranged sequentially from high to low to form a vibrating tank group; the vibrating frame includes a vibrating frame, a second transmission shaft , conjugate eccentric wheel, vibrating plate, second motor, second pulley and discharge hopper group; the second transmission shaft is supported on the vibrating frame through bearings, and the conjugate eccentric wheel and the second belt are fixed on the second transmission shaft. wheel; the conjugate eccentric wheel is composed of two second eccentric wheels with a phase angle difference of 180° and fixed together; the base of the second motor is fixed to the vibrating frame, and the second pulley fixed on the output shaft of the second motor and The second pulley fixed on the second transmission shaft is connected by a conveyor belt; the bottom of the vibrating frame is fixed to the base by multiple vibrating pieces, and all vibrating pieces are divided into two groups and arranged on both sides of the vibrating frame. The vibration in each group The sheets are arranged equidistantly along the length direction of the vibrating rack; the second vibrating groove includes a concave multi-groove plate, a vibrating groove frame, a screw group and a groove plate adjusting mechanism, and also includes a material anti-blocking mechanism; the concave shape of the second vibrating groove The assembly relationship between the multi-groove plate, the vibrating trough frame, the screw group and the trough plate adjustment mechanism is exactly the same as that of the first vibration trough; the material anti-blocking mechanism is arranged at the input end of the concave multi-groove plate; the material anti-blocking mechanism It is composed of the third motor, the third pulley, the conveyor belt, the fourth pulley and the anti-block rod with guide vanes; the third motor is fixed on the concave multi-groove disc, the third pulley is fixed on the output shaft of the third motor, and the fixed The fourth pulley on the anti-resistance rod with guide vanes is connected with the third pulley through a conveyor belt; both ends of the anti-resistance rod with guide vanes form a rotating pair with the concave multi-groove disk, and are arranged above the concave multi-groove disk; Two or three elongated guide vanes are fixed on the guide vane anti-blocking rod. The vibrating tank frames of the second vibrating tanks of four levels are all fixed to the vibrating frame, and the concave multi-groove discs of the second vibrating tanks are arranged obliquely; When the center line is symmetrically arranged, the distance between the concave multi-groove disk of the second vibrating tank of the nth level and the anti-drag bar with guide vanes of the second vibrating tank of the n+1st level is n cm in the horizontal direction, and n cm in the vertical direction. The projection in the vertical direction is less than 10 cm, and the value of n is 1, 2 or 3; the inclination directions of the four-level second vibration tanks are the same, and all of them are directed from the second vibration tank at the higher position to the second vibration tank at the lower position tilt. The discharge hopper group is composed of three discharge hoppers equidistantly fixed on the vibrating frame, and one discharge hopper is arranged directly below the distance between two adjacent second vibration grooves.

The concave multi-groove disk of the first vibration groove is arranged horizontally, and the first vibration groove is located above the second vibration groove at the highest position; the concave multi-groove disk of the first vibration groove and the concave multi-groove disk of the second vibration groove at the highest position are both When arranged symmetrically about the center line of the length direction of each vibrating tank frame, the projection of the concave multi-groove disc of the first vibrating tank and the concave multi-groove disc of the second vibrating tank at the highest position on the horizontal plane has no overlapping area, and the concave multi-groove disc of the first vibrating tank The distance between the multi-groove disc and the anti-resistance rod with guide vanes of the second vibrating groove at the highest position is 0 in the horizontal direction, and less than 10 cm in the vertical direction.

Compared with the prior art, the utility model has the following advantages:

After the raw materials of machine-picked fresh tea leaves are dispersed and tiled by wind blowing, the utility model arranges the fresh leaves of machine-picked tea in a longitudinal arrangement according to individual buds and leaves through the arrangement of guide leaves, and separates the fresh leaves of machine-picked tea through gap separation. The leaves are separated according to the length difference of each level, and the classification of the fresh leaf raw materials of machine-picked tea is completed; that is, through winnowing treatment, wind blowing, dispersion and tiling combined with the steps of guide leaf arrangement and gap separation of the utility model, the machine-picked fresh leaves are effectively realized. Directional separation of fresh tea leaves.

Description of drawings

Fig. 1 is a three-dimensional view of the overall structure of a horizontal vibrating machine in the present invention.

Fig. 2 is a bottom schematic diagram of the horizontal vibrating machine in the utility model.

Fig. 3 is a structural schematic diagram of the adjusting mechanism of the groove disc in the utility model.

Fig. 4 is a structural schematic diagram of the tilting vibration classifier in the utility model.

Fig. 5 is a schematic structural diagram of the second vibrating tank in the present invention.

Fig. 6 is an assembly schematic diagram of the material anti-blocking mechanism in the utility model.

Fig. 7 is a side view of the tilting vibration classifier in the utility model.

In the figure: 1, the first vibrating tank, 1-1, the concave multi-groove plate, 1-2, the vibrating tank frame, 1-3, the screw, 1-4, the groove plate adjusting mechanism, 1-4-1, the adjusting rod , 1-4-2, gear, 1-4-3, rack, 2, vibration arm group, 3, vibration chassis, 3-1, frame, 3-2, first drive shaft, 3-3, The first eccentric wheel, 3-4, the first pulley, 3-5, the vibration rocker, 4, the vibration chassis, 4-1, the vibration chassis frame, 4-2, the counterweight, 5, the first motor, 6 , the second vibrating tank, 6-1, the material anti-blocking mechanism, 6-1-1, the third motor, 6-1-2, the third pulley, 6-1-3, the conveyor belt, 6-1-4, The fourth pulley, 6-1-5, band guide vane anti-blocking bar, 7, vibrating frame, 7-1, vibrating frame, 7-2, second drive shaft, 7-3, conjugate eccentric wheel, 7 -4, vibration plate, 7-5, second motor, 7-6, second pulley, 7-7, discharge hopper group, 8, base.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 4, a device for directional grading of machine-picked fresh leaf raw materials includes a horizontal vibrating machine and an inclined vibrating classifying machine, and the horizontal vibrating machine completes the directional arrangement of single buds or leaves with buds , The inclined vibrating classifier completes the gap separation.

As shown in Fig. 1, Fig. 2 and Fig. 3, the horizontal vibrating machine is composed of a first vibrating tank 1, a vibrating arm group 2, a vibrating chassis 3, a vibrating chassis 4 and a first motor 5. Vibration underframe 3 comprises frame 3-1, first transmission shaft 3-2, first eccentric wheel 3-3, first pulley 3-4 and vibration rocker 3-5; First transmission shaft 3-2 passes The bearing is supported on the frame 3-1; the first transmission shaft 3-2 is fixed with the first eccentric wheel 3-3 and the first pulley 3-4; one end of the vibration rocker 3-5 is connected with the first eccentric wheel 3- 3 are hinged, and the other end is hinged with the counterweight 4-2 of the vibrating chassis 4; the base of the first motor 5 is fixed on the frame 3-1, and the first pulley fixed on the output shaft of the first motor 5 is fixed on the The first belt pulley 3-4 on the first transmission shaft 3-2 is connected by a conveyor belt; the first vibration groove 1 is composed of a concave multi-groove plate 1-1, a vibration groove frame 1-2, a screw group and a groove plate adjustment mechanism 1- 4 components; two screw groups are connected to both sides of the concave multi-groove plate 1-1, and the screw group is composed of two screws 1-3 arranged at intervals, and the two screws 1-3 in each screw group are embedded in the vibration groove frame In an adjustment slot corresponding to 1-2, the tails of all screws 1-3 are threadedly connected with the concave multi-slot disc 1-1; the concave multi-slot disc is provided with multiple (fourteen in this embodiment) guide vane grooves , the length direction of the guide vane groove is the transmission direction; the groove plate adjustment mechanism 1-4 includes an adjustment rod 1-4-1, a gear 1-4-2 and a rack 1-4-3; two adjustment rods 1-4-1 Both ends form a rotating pair with the vibrating trough frame 1-2, and one end of the adjustment rod is provided with an adjustment handle; the gear 1-4-2 is fixed on the adjustment rod 1-4-1, and meshes with the rack 1-4-3; The rack 1-4-3 is fixed on the bottom of the concave multi-groove plate 1-1; the vibration chassis 4 is composed of the vibration chassis frame 4-1 and the counterweight 4-2; the counterweight 4-2 is fixed on the vibration chassis frame 4- 1 on. The vibrating arm group 2 is composed of four vibrating arms, and the four vibrating arms are arrayed on both sides of the first vibrating tank 1 (two vibrating arms on each side); the middle part of the vibrating arm is connected with the frame 3-1, and the upper end is connected with the Vibration tank frame 1-2 is hinged, and the lower end is hinged with vibration chassis frame 4-1.

The adjustment handle drives the adjustment rod 1-4-1 and the gear 1-4-2 to rotate, the rack 1-4-3 meshes with the gear 1-4-2 for transmission, and the concave multi-slot plate fixed with the rack 1-4-3 1-1 just produces relative sliding motion with vibrating groove frame 1-2.

As shown in Figure 4, Figure 5, Figure 6 and Figure 7, the inclined vibration classifier includes a vibration tank group, a vibration frame 7 and a base 8; the four-stage second vibration tank 6 is arranged in order from high to low to form a vibration tank group The vibration frame 7 includes a vibration frame 7-1, a second transmission shaft 7-2, a conjugate eccentric wheel 7-3, a vibrating plate 7-4, a second motor 7-5, a second pulley 7-6 and an output Hopper group 7-7; the second transmission shaft 7-2 is supported on the vibration frame 7-1 through bearings, and the second transmission shaft 7-2 is fixed with a conjugate eccentric wheel 7-3 and a second pulley 7-6 The conjugate eccentric wheel 7-3 is made up of two second eccentric wheels with a phase angle difference of 180° and fixed together; the base of the second motor 7-5 is fixed to the vibrating frame 7-1, and is fixed on the second motor 7 The second pulley 7-6 on the -5 output shaft is connected with the second pulley 7-6 fixed on the second transmission shaft 7-2 through a conveyor belt; the bottom of the vibrating frame 7-1 passes through sixteen vibrating plates 7 -4 is fixed with the base 8 (that is, the two ends of the vibrating plate 7-4 are respectively fixed with the vibrating frame 7-1 and the base 8), and the sixteen vibrating plates 7-4 are divided into two groups and arranged on the vibrating frame 7-1. Side, the vibration plates 7-4 in each group are arranged equidistantly along the length direction of the vibration frame 7-1; the base 8 is placed on the level ground; the second vibration groove 6 includes a concave multi-groove plate 1-1, 1-2. Screw group and groove plate adjustment mechanism 1-4, also includes material anti-blocking mechanism 6-1; concave multi-groove plate 1-1 of the second vibration groove 6, vibration groove frame 1-2, screw group and groove The assembly relationship between the disk adjustment mechanism 1-4 is exactly the same as that of the first vibration tank 1; the material anti-blocking mechanism is set at the input end of the concave multi-groove disk 1-1; the material anti-blocking mechanism 6-1 is controlled by the third motor 6 -1-1, the third pulley 6-1-2, the conveyor belt 6-1-3, the fourth pulley 6-1-4 and the band guide vane anti-blocking bar 6-1-5; the third motor 6- 1-1 is fixed on the concave multi-groove disc 1-1, the third pulley 6-1-2 is fixed on the output shaft of the third motor 6-1-1, and is fixed on the band guide vane anti-blocking rod 6-1-5 The fourth pulley 6-1-4 on the top is connected with the third pulley 6-1-2 through the conveyor belt 6-1-3; -1 constitutes a revolving pair and is arranged above the concave multi-groove disc 1-1; two or three elongated guide vanes are fixed on the anti-blocking bar 6-1-5 with guide vanes. The vibrating tank frame 1-2 of the second vibrating tank 6 of four stages is all fixed with the vibrating frame 7-1, and the concave multi-groove plate 1-1 of the second vibrating tank 6 is obliquely arranged; When the multi-groove disks 1-1 are arranged symmetrically with respect to the center lines in the length direction of the respective vibrating groove frames 1-2, the concave multi-groove disk 1-1 of the second vibration groove of the nth level and the second vibration groove of the n+1st level The projection of the distance between the anti-resistance rods 6-1-5 with guide vanes in the horizontal direction is n centimeters, and the projection in the vertical direction is less than 10 centimeters, and the value of n is 1, 2 or 3; the fourth-level second vibration groove 6 have the same inclination direction, and they all incline from the second vibrating groove 6 at a higher position toward the second vibrating groove 6 at a lower position. The discharge hopper group 7-7 is composed of three discharge hoppers equidistantly fixed on the vibrating frame 7-1, and a discharge hopper is arranged directly below the spacing position of every two adjacent second vibration grooves.

The concave multi-groove disk 1-1 of the first vibration groove 1 is horizontally arranged, and the first vibration groove 1 is positioned at the top of the second vibration groove 6 at the highest position; When the concave multi-groove discs 1-1 of the vibrating tanks are arranged symmetrically about the centerlines of the respective vibrating tank frames 1-2 in the longitudinal direction, the concave multi-groove discs 1-1 of the first vibrating tank 1 and the concave multi-groove discs 1-1 of the highest position second vibrating tank The projection of the multi-groove disk 1-1 on the horizontal plane has no overlapping area (to ensure that the input end of the first vibration groove, the output end of the first vibration groove, and the input end of the second vibration groove are arranged in sequence along the transmission direction), and the first vibration groove 1 The distance between the concave multi-groove disk 1-1 and the anti-resistance rod 6-1-5 with guide vanes in the second vibrating groove at the highest position has a projection of 0 in the horizontal direction and a projection in the vertical direction of less than 10 cm.

The directional grading device for fresh tea leaf raw materials picked by this machine works as follows:

(1) The winnowing process at the front of the utility model: the fresh leaves of machine-picked tea are complex in composition, including single buds, leaves with buds (one bud with one leaf, one bud with two leaves, and leaves with buds with more than three leaves) and miscellaneous materials (single leaves, broken buds, broken leaves, broken branches, broken stems); air separation is used to remove the miscellaneous materials in the raw materials of machine-picked tea fresh leaves, and form the first mixture and the second mixture; the first mixture The material is mainly composed of bud leaves with one bud and two leaves and bud leaves with more than three leaves, and the second mixture is mainly composed of single buds, bud leaves with one bud and one leaf, and bud leaves with one bud and two leaves; Steps (2), (3) and (4) are carried out respectively for the first compound and the second compound;

(2) The air-sent dispersing tiling at the front of the utility model: disperse the first mixture or the second mixture in a closed space by blowing (wind speed is 3 to 5m/s), spread it on the conveyor belt, and Conveyed by the conveyor belt to the horizontal vibrating machine; after the wind blows and disperses, the single buds or the buds and leaves do not overlap;

(3) Direction arrangement of the utility model: the first motor 5 drives the first transmission shaft 3-2 and the first eccentric wheel 3-3 to rotate, thereby making the vibration rocker 3-5 swing, driving the vibration chassis 4, the vibration arm And the vibration of the first vibration tank 1, the first vibration tank 1 vibrates with the vibration frequency k and the swing angle b, constantly throws the first mixture or the second mixture processed by step (2), so that the single sprout Or the head-to-tail direction of the bud leaves is arranged along the guide vane groove length direction of the concave multi-groove disc 1-1 of the first vibrating groove 1; wherein, k takes a value in the range of 40～60Hz (50Hz in this embodiment), b<20°.

(4) Gap separation of the present utility model: when the single bud or the band bud leaf after step (3) processing falls into the inclined vibrating classifier, it is brought in by the band guide vane anti-drag bar 6-1-5 rotation, and Pass through the second vibrating tank 6 in four stages in turn; wherein, the anti-resistance rod 6-1-5 with guide vanes is driven by the third motor 6-1-1 through the third pulley 6-1-2, the conveyor belt 6-1-3 and The fourth pulley 6-1-4 is driven to realize rotation, and the vibrating frame 7-1 is driven by the second motor 7-5 through the second pulley 7-6, the second transmission shaft 7-2 and the conjugate eccentric wheel 7-3 Drive to realize vibration; here, although through the winnowing process of step (1), still may be mixed with various levels of buds and leaves or even miscellaneous materials in the first mixture or the second mixture, so it is necessary to carry out gap separation; gap separation The principle is as follows: according to the characteristics of different lengths of single buds or leaves with buds, the first-stage second vibration groove 6 separates to obtain single buds with a length of less than 1 cm, and the second-stage second vibration groove 6 separates to obtain single buds with a length of 1-2 cm. One bud and one leaf with buds and leaves, the second vibration tank 6 of the third stage is separated to obtain a bud and two leaves with buds and leaves with a length of 2-3cm, and the outlet of the second vibration tank 6 of the fourth stage has a length of three leaves and leaves with a length greater than 3cm. For the above leaves with buds, the grading of machine-picked fresh leaf raw materials is completed. Except for the leaves with buds of three leaves and above, the remaining single buds or leaves with buds are separated into their respective discharge hoppers; The leaves with buds are output by the second vibration tank 6 of the fourth stage.

Step (1) is specifically as follows: the raw materials of machine-harvested fresh leaves adopt the free-fall method, and are blown by cross wind (horizontal wind direction) in a closed space, and the wind force is adjustable. Three discharge ports are arranged in sequence along the wind direction below the air outlet. Miscellaneous materials fall to the nearest discharge port, some bud leaves with one bud and two leaves and bud leaves with more than three leaves fall to the middle discharge port, single bud, one bud and one leaf with bud leaves and other bud leaves Part of the bud leaves with one bud and two leaves fall to the farthest discharge port; one winnowing treatment can remove more than 80% of the miscellaneous materials in the fresh leaf raw materials of machine-picked tea; according to the difference of fresh leaf raw materials, the winnowing treatment can be repeated for 3~ 4 times. After winnowing treatment, the bud leaves with one bud and two leaves and the bud leaves with more than three leaves form the first mixture, and the single buds, the bud leaves with one bud and one leaf and the bud leaves with one bud and two leaves form the second mixture. Mixture.

The above-mentioned specific embodiments are used to explain the utility model, and are only preferred embodiments of the utility model, rather than limiting the utility model. Within the spirit of the utility model and the scope of protection of the claims, any Modifications, equivalent replacements, improvements, etc., all fall within the protection scope of the present utility model.

Claims (1)

1. A device for directional classification of machine-picked fresh leaf raw materials, comprising a horizontal vibrating machine and an inclined vibrating classifier; it is characterized in that: the horizontal vibrating machine consists of a first vibrating tank, a vibrating arm group, a vibrating chassis, The vibration chassis and the first motor are composed; the vibration chassis includes a frame, a first transmission shaft, a first eccentric wheel, a first pulley and a vibration rocker; the first transmission shaft is supported on the frame through bearings; the second A transmission shaft is fixed with a first eccentric wheel and a first pulley; one end of the vibration rocker is hinged with the first eccentric wheel, and the other end is hinged with the counterweight of the vibration chassis; the base of the first motor is fixed on the frame, fixed The first pulley on the output shaft of the first motor is connected with the first pulley fixed on the first transmission shaft through a transmission belt; the first vibration groove is composed of a concave multi-groove plate, a vibration groove frame, a screw group and a groove The disc adjustment mechanism is composed of two screw groups connected to both sides of the concave multi-groove disc. The screw group is composed of two screws arranged at intervals. The two screws in each screw group are embedded in an adjustment slot corresponding to the vibration tank frame. The tails of all the screws are threadedly connected to the concave multi-slot disc; the concave multi-slot disc is provided with multiple guide vane slots, and the length direction of the guide vane slots is the transmission direction; the slotted disc adjustment mechanism includes an adjustment rod, a gear and a rack ; Both ends of the adjustment rod form a rotating pair with the vibration groove frame, and one end of the adjustment rod is provided with an adjustment handle; the gear is fixed on the adjustment rod and meshes with the rack; the rack is fixed at the bottom of the concave multi-groove plate; the vibration The chassis is composed of a vibrating chassis frame and a counterweight; the counterweight is fixed on the vibrating chassis frame; the vibrating arm group is composed of four vibrating arms, and the four vibrating arms are arrayed on both sides of the first vibrating tank; the middle part of the vibrating arm It is fixedly connected with the frame, the upper end is hinged with the vibrating tank frame, and the lower end is hinged with the vibrating chassis frame; The inclined vibration classifier includes a vibrating tank group, a vibrating frame and a base; the four-stage second vibrating tanks are arranged sequentially from high to low to form a vibrating tank group; the vibrating frame includes a vibrating frame, a second transmission shaft , conjugate eccentric wheel, vibrating plate, second motor, second pulley and discharge hopper group; the second transmission shaft is supported on the vibrating frame through bearings, and the conjugate eccentric wheel and the second belt are fixed on the second transmission shaft. wheel; the conjugate eccentric wheel is composed of two second eccentric wheels with a phase angle difference of 180° and fixed together; the base of the second motor is fixed to the vibrating frame, and the second pulley fixed on the output shaft of the second motor and The second pulley fixed on the second transmission shaft is connected by a conveyor belt; the bottom of the vibrating frame is fixed to the base by multiple vibrating pieces, and all vibrating pieces are divided into two groups and arranged on both sides of the vibrating frame. The vibration in each group The sheets are arranged equidistantly along the length direction of the vibrating rack; the second vibrating groove includes a concave multi-groove plate, a vibrating groove frame, a screw group and a groove plate adjusting mechanism, and also includes a material anti-blocking mechanism; the concave shape of the second vibrating groove The assembly relationship between the multi-groove plate, the vibrating trough frame, the screw group and the trough plate adjustment mechanism is exactly the same as that of the first vibration trough; the material anti-blocking mechanism is arranged at the input end of the concave multi-groove plate; the material anti-blocking mechanism It is composed of the third motor, the third pulley, the conveyor belt, the fourth pulley and the anti-block rod with guide vanes; the third motor is fixed on the concave multi-groove disc, the third pulley is fixed on the output shaft of the third motor, and the fixed The fourth pulley on the anti-resistance rod with guide vanes is connected with the third pulley through a conveyor belt; both ends of the anti-resistance rod with guide vanes form a rotating pair with the concave multi-groove disk, and are arranged above the concave multi-groove disk; Two or three long guide vanes are fixed on the anti-drag bar of the guide vane; the vibrating tank frame of the second vibrating tank of four stages is fixed with the vibrating frame, and the concave multi-groove plate of the second vibrating tank is set obliquely; When the concave multi-groove disks of the second vibration groove of the second vibration groove are arranged symmetrically about the center line of the length direction of the respective vibration groove frame, the concave multi-groove disk of the second vibration groove of the nth grade and the belt guide of the second vibration groove of the n+1th grade The projection of the distance between the leaf anti-drag rods in the horizontal direction is n centimeters, and the projection in the vertical direction is less than 10 centimeters, and the value of n is 1, 2 or 3; The second vibrating tank at a higher position is inclined towards the second vibrating tank at a lower position; the discharge hopper group is composed of three discharge hoppers fixed on the vibrating frame at equal distances, and every two adjacent second vibrating tanks A discharge hopper is set directly below the spacing position; The concave multi-groove disk of the first vibration groove is arranged horizontally, and the first vibration groove is located above the second vibration groove at the highest position; the concave multi-groove disk of the first vibration groove and the concave multi-groove disk of the second vibration groove at the highest position are both When arranged symmetrically about the center line of the length direction of each vibrating tank frame, the projection of the concave multi-groove disc of the first vibrating tank and the concave multi-groove disc of the second vibrating tank at the highest position on the horizontal plane has no overlapping area, and the concave multi-groove disc of the first vibrating tank The distance between the multi-groove disc and the anti-resistance rod with guide vanes of the second vibrating groove at the highest position is 0 in the horizontal direction, and less than 10 cm in the vertical direction.