Tea leaf impurity removing device
Technical Field
The invention relates to the technical field of tea processing, in particular to a tea impurity removing device.
Background
Because the production process of tea leaves is extensive and unsanitary, the tea leaves are often mixed with impurities such as dust, hair, plastic fragments, scrap iron and the like, and the tea products produced at the present production place are unsanitary. Aiming at the removal of the impurities, manufacturers traditionally rent a large amount of manual work to pick the impurities, and because the degree of seriousness and the responsibility of workers are different, the impurity removal condition of the manually picked tea leaves is not ideal, the labor amount is large, and the cost of the manufacturers is high.
In order to solve the problems, the Chinese patent publication No. CN201558744U discloses a material electrostatic dust removal impurity removal machine, which comprises a closed cover with a feeding port and a discharging port, and a material conveyor arranged in the closed cover, wherein the discharging end of the material conveyor is provided with an electrostatic adsorption roller and an electrostatic adsorption plate, the electrostatic adsorption roller and the electrostatic adsorption plate are electrically connected with an electrostatic generator, and a feeding port of the closed cover is provided with a horizontal roller group for generating charge. This patent needs tealeaves and horizontal roller set friction can produce electric charge, and in the friction process, can make a large amount of tealeaves ground, reduces other defects such as tealeaves quality. In order to solve the defect of the patent, the tea static impurity removing machine with the Chinese patent publication number of CN102294303Bd comprises a feeding plate, a felt strip arranged on the feeding plate and a plastic roller horizontally arranged, wherein the felt strip is in friction contact with the plastic roller, a containing box is arranged below the felt strip, and the containing box inclines towards one side of the rack. This tealeaves static electricity shaker connects through felt strip and plastics roller and triggers to generate static for the adsorbed debris of plastics roller surface wafts to the containing box after being blocked by the felt strip on, and rethread containing box discharges.
Although tealeaves static shaker does not need tealeaves and plastics roller friction to produce the electric charge, but be worth noting, the felt strip and the contact of plastics roller of this patent, the rotation that plastics roller does not stop produces the electrostatic absorption debris, and debris are blockked the back by the felt strip and are fallen to the containing box on, and when debris were more, debris can push away the amasss in the containing box, then debris fall again on the delivery sheet from the side reason of containing box, can not effectively reach the effect of tealeaves edulcoration. Moreover, the sundries electrostatically adsorbed by the plastic roller are all lighter, and the heavier sundries are not easy to be adsorbed on the plastic roller, so the feeding plate of the patent is a sieve plate, the feeding plate is connected with a motor, the motor drives the feeding plate to shake, the sieve plate is used for enabling sundries such as small stones, dust, tea dust and the like to fall out through sieve holes, but the sundries cannot be thoroughly removed due to different sizes of the sundries and the sieve holes are too small, and the sieve holes are also easy to be blocked; if the sieve pores are too large, the tea leaves and impurities fall out through the sieve pores, so that the waste of the tea leaves is caused or the impurity removal of the tea leaves is carried out for the second time.
Disclosure of Invention
The invention aims to provide the tea leaf impurity removing device, so that impurities adsorbed by the plastic roller cannot fall onto the conveying belt again to be mixed with tea leaves, and meanwhile, the tea leaves can be directly separated from the unadsorbed impurities, and the waste of the tea leaves or secondary impurity removal cannot be caused.
The basic scheme of the scheme is as follows: the tea leaf impurity removing device comprises a feeding plate, wherein a felt strip, a plastic roller contacted with the felt strip and a power mechanism for driving the plastic roller to rotate are arranged above the feeding plate, an inclined slide rail is arranged below the felt strip, and the plastic roller is provided with a connecting rod mechanism; the receiving mechanism for receiving sundries is arranged on the slide rail, the receiving mechanism can move in the slide rail in a reciprocating mode under the action of the connecting rod mechanism to remove sundries, the connecting rod mechanism is connected with an air bag which can stretch under the action of the connecting rod mechanism, the air bag is provided with an air inlet and an air outlet, the air inlet is provided with a one-way valve, the air outlet is provided with a one-way valve, and the air outlet is arranged in the direction towards the feeding plate and the receiving mechanism.
The working principle of the basic scheme is as follows: when the feeding plate is used for conveying tea leaves, the plastic roller rotates to rub the felt strips to generate static electricity, the plastic roller can adsorb light impurities, and the impurities adsorbed on the surface of the plastic roller fall into the containing mechanism after being blocked by the felt strips. When the plastic roller rotates, the storage mechanism is triggered by the link mechanism to remove impurities, and the rotating mechanism can stretch and extrude the air bag at the same time, so that air enters the air inlet of the air bag when the air bag is stretched; when the gasbag was extruded, the gas outlet of gasbag was given vent to anger, blows to delivery sheet and receiving mechanism, and the tealeaves of delivery sheet just is blown up to having blown out the delivery sheet, just remaining some heavier debris on the delivery sheet, thereby having detached the debris that differ in weight in the tealeaves.
The beneficial effect of this basic scheme: 1. because the plastic roller rotates all the time, when the storage mechanism receives sundries, the connecting rod mechanism triggers the storage mechanism to remove the sundries under the rotation of the plastic roller, the connecting rod mechanism can extrude the air bag to give vent to air, air is blown to the storage mechanism, the sundries in the storage mechanism can be blown, and the effect of removing the sundries by the storage mechanism is prevented from being influenced when the storage mechanism accumulates too many sundries.
2. Because can contain some heavier debris in the debris of tealeaves, for example little stone, metal sediment, dust etc. this debris is difficult to adsorbed on the plastic roller surface, so the gasbag of this scheme is given vent to anger and still is used for blowing away tealeaves from the side of feed table, and heavier debris just remain on the pay-off area. Compared with the electrostatic tea impurity remover, the electrostatic tea impurity remover has the advantages that the feeding plate does not need to be arranged into a sieve plate form, and the sieve plate does not need to be shaken by additionally increasing power.
Further, the connecting rod mechanism comprises a cam, and the cam is fixed on a shaft neck of the plastic roller; the storage mechanism comprises a storage box and a tension spring, the storage box is positioned in the slide rail, the bottom surface of the low-position end of the storage box is provided with a trash discharging port, the low-position end of the storage box is provided with the tension spring connected with the slide rail, and the trash discharging port is hinged with a one-way valve which is opened outwards only; the high-position end of the containing box is provided with an inclined surface which can be matched with the outer edge surface of the cam, and the inclined surface extends out of the slide rail and can be contacted with the outer edge surface of the protruding part of the cam.
The plastic roller rotates to drive the cam to rotate, in the rotating process of the cam, the outer edge surface of the protruding portion of the cam can be in contact with the inclined surface of the containing box, the cam can push the containing box to slide in the slide rail, when the containing box slides out of the slide rail at the low end, the tension spring at the end of the containing box deforms, the one-way valve of the impurity discharging port is opened, and impurities in the containing box fall out of the impurity discharging port. When the cam protruding part rotates away, the containing box is not pushed any more, the tension spring at the end part of the containing box resets to rebound the containing box to the initial state, and the cam protruding part is waited to be contacted next time. According to the scheme, sundries are collected while sundries are removed by the containing box, the end part of the containing box is arranged to be the inclined plane, the contact surface between the end part of the containing box and the outer edge surface of the cam is increased, the cam is facilitated to stably push the containing box, the structure is simple, the containing box is easy to realize, and when the containing box is upwards slid along the slide rail by resetting the tension spring, sundries in the containing box are facilitated to slide to the sundries discharging opening, and sundries are not easy to be accumulated in the containing box.
Furthermore, the connecting rod mechanism further comprises a connecting column, a connecting rod and a pressing plate, one end of the connecting column is fixed on the protruding portion of the cam, which is far away from one end face of the feeding plate, one end of the connecting rod is hinged to the other end of the connecting column, the other end of the connecting rod is connected with the upper end face of the pressing plate, and the lower end face of the pressing plate is connected with the air bag.
When the cam rotates along with the plastic roller, the connecting column rotates along with the cam, and the connecting rod is connected with the air bag through the pressing plate and rotates to drive the connecting rod to stretch and extrude the air bag through the pressing plate, so that air inlet and air outlet of the air bag are realized. The scheme has simple structure and low cost.
Further, the matching of the plastic roller and the felt strip comprises a plurality of groups; each group of plastic rollers is provided with a connecting rod mechanism, and each connecting rod mechanism is correspondingly connected with an air bag.
Through the cooperation that sets up multiunit plastic roller and felt strip and use for the tealeaves edulcoration is more thorough.
Furthermore, a sundry storage box for receiving sundries falling from the sundry discharging port is arranged below the slide rail at a low position.
Sundries in the storage box fall out from the sundry discharging port and directly fall into the sundry storage box, so that the post-treatment of the sundries is facilitated.
Further, one side of the feeding plate along the conveying direction is provided with a discharge hole for receiving tea leaves, and the discharge hole is a conical hole.
Because the tea leaves are blown away from the feeding plate, the conical openings prevent the tea leaves from scattering in different places, and the recovery of the tea leaves is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a tea leaf impurity removing device according to the present invention;
fig. 2 is a schematic structural diagram of the link mechanism in this embodiment.
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 frame 1, a feeding plate 2, a sundry outlet 3, a storage box 4, a cam 5, a felt strip 6, a plastic roller 7, a feeding hole 8, a sundry storage box 9, a discharging hole 10, a connecting rod 11, a pressing plate 12 and an air bag 13.
The embodiment is basically as shown in the attached figure 1: tea edulcoration device, including frame 1 and the delivery sheet 2 that is used for conveying tealeaves to carry out the edulcoration, delivery sheet 2 installs in frame 1, is equipped with feed inlet 8 and miscellaneous mouth 3 respectively along delivery direction's both ends along delivery sheet 2 in frame 1, and delivery sheet 2 is equipped with discharge gate 10 along one side of delivery direction, and wherein, discharge gate 10 establishes to the bell mouth.
Four groups of felt strips 6 and plastic rollers 7 which are matched with each other are arranged on the rack 1, the plastic rollers 7 are horizontally arranged above the feeding plate 2, the plastic rollers 7 are in contact with the felt strips 6, and a motor (not shown in the figure) is arranged on the rack 1 and drives the plastic rollers 7 to rotate through a belt and belt pulleys. Inclined slide rails (not shown in the figure) are arranged between each group of felt strips 6 and the feeding plate 2, the slide rails are installed on the machine frame 1, and one end of each slide rail, which is located in the direction of the discharge port 10, is a low end.
The axle journal of plastic roller 7 is equipped with link mechanism, and four plastic rollers 7 all are equipped with link mechanism, all are equipped with the receiving mechanism who receives the absorptive debris of plastic roller 7 in four slide rails, and every receiving mechanism carries out the edulcoration under the link mechanism's that corresponds effect, and every link mechanism is connected with telescopic gasbag 13 under link mechanism's effect, and gasbag 13 is fixed in frame 1, gasbag 13 is equipped with air inlet and gas outlet, the air inlet is equipped with the check valve that only admits air and do not give vent to anger, the gas outlet is equipped with the check valve that only gives vent to anger and do not admit to, and the gas outlet setting is in the direction towards delivery sheet 2 and receiving mechanism, and the air inlet setting is at the corresponding face of 13 gas outlet place of.
As shown in fig. 2, the link mechanism includes a cam 5, a connection post (not shown), a connection rod 11, and a pressure plate 12, and the cam 5 is welded to the journal. One end of the connecting column is eccentrically fixed on a protruding part of the cam 5, which is far away from one end face of the feeding plate 2, one end of the connecting rod 11 is hinged to the other end of the connecting column, the other end of the connecting rod 11 is hinged to the upper end face of the pressing plate 12, and the lower end face of the pressing plate 12 is bonded with the air bag 13.
The containing mechanism comprises a containing box 4 with an open upper surface, the containing box 4 is placed in a slide rail, the containing box 4 can slide in the slide rail, a sundry discharging port is arranged on the bottom surface of the containing box 4 at the low end, a one-way valve which is only opened outwards is hinged to the sundry discharging port, and the low end of the containing box 4 is connected with the inner bottom surface of the slide rail through a tension spring. The high-position end of the containing box 4 is an inclined surface which can be matched with the outer edge surface of the cam 5, and the inclined surface extends out of the slide rail and can be abutted against the outer edge surface of the protruding part of the cam 5.
In order to collect the sundries in the storage box 4, in the embodiment, a sundry storage box 9 is arranged between the discharge port 10 and the lower end of the slide rail, the side surface of the sundry storage box 9 is installed on the rack 1, and the upper surface of the sundry storage box 9 is open.
The specific implementation process is as follows: when the tea leaves are conveyed by the feeding plate 2, the motor drives the roller to rotate, the roller rotates and drives the plastic roller 7 to rotate through the conveying belt, the plastic roller 7 rotates and rubs with the felt strip 6 to generate static electricity, the plastic roller 7 can adsorb lighter impurities, and the impurities adsorbed on the surface of the plastic roller 7 are blocked by the felt strip 6 and then fall into the containing box 4.
The plastic roller 7 rotates and simultaneously drives the cam 5 to rotate, in the rotating process of the cam 5, the outer edge surface of the protruding part of the cam 5 can be in contact with the inclined surface of the containing box 4, the cam 5 can push the containing box 4 to slide in the direction of the low end in the slide rail, when the containing box 4 slides out of the slide rail at the low end, the tension spring at the end part of the containing box 4 is stretched to deform, the one-way valve of the impurity discharging port is opened, and impurities in the containing box 4 fall into the impurity storage box 9 from the impurity discharging port. After the protruding part of the cam 5 is rotated away, the containing box 4 is not pushed any more, the tension spring at the end part of the containing box 4 is reset to rebound the containing box 4 to the initial state, and the storage box is waited to be contacted with the protruding part of the cam 5 next time, so that sundries are collected and impurities are removed while the containing box 4 is realized.
When the cam 5 rotates, the connecting column rotates along with the cam 5, and the connecting rod 11 is connected with the air bag 13 through the pressing plate 12, so that the connecting column rotates to drive the connecting rod 11 to stretch and extrude the air bag 13 through the pressing plate 12; when the air bag 13 is extruded, the air outlet of the air bag 13 is exhausted, air is blown to the containing box 4 and the feeding plate 2, and the air is blown to the containing box 4, so that sundries in the containing box 4 can slide to a sundry discharging port, and the sundries are prevented from being accumulated; after the tea leaves of the feeding plate 2 are blown up, the tea leaves are blown into the discharge hole 10 from the feeding plate 2, and some heavy impurities are left on the feeding plate 2, so that the impurities with different weights in the tea leaves are removed.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications 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.