CN114918130A - Sieving mechanism for tea processing - Google Patents

Sieving mechanism for tea processing Download PDF

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Publication number
CN114918130A
CN114918130A CN202210587772.4A CN202210587772A CN114918130A CN 114918130 A CN114918130 A CN 114918130A CN 202210587772 A CN202210587772 A CN 202210587772A CN 114918130 A CN114918130 A CN 114918130A
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CN
China
Prior art keywords
blanking
screening
vibrating plate
blowing air
fixing plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210587772.4A
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Chinese (zh)
Inventor
刘天智
王忠亮
刘峰
徐飞
刘浩
陈威宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinyang Xianfeng Tea Co ltd
Original Assignee
Xinyang Xianfeng Tea Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinyang Xianfeng Tea Co ltd filed Critical Xinyang Xianfeng Tea Co ltd
Priority to CN202210587772.4A priority Critical patent/CN114918130A/en
Publication of CN114918130A publication Critical patent/CN114918130A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23FCOFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00Tea; Tea substitutes; Preparations thereof
    • A23F3/06Treating tea before extraction; Preparations produced thereby
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02Cleaning by the force of jets, e.g. blowing-out cavities

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to a screening device for tea processing, wherein a screening bin and a vibrating screen are arranged on a rack, the vibrating screen comprises an upper vibrating plate and a lower fixing plate which are arranged in parallel, and a plurality of springs for supporting the upper vibrating plate are arranged on the upper side of the lower fixing plate; an upper sieve hole is arranged on the upper vibrating plate, a lower sieve hole is arranged on the lower fixing plate, and a communicating blanking channel is formed between the upper sieve hole and the lower sieve hole; and a blowing air bag is further arranged between the lower fixing plate and the upper vibrating plate, the upper vibrating plate extrudes the blowing air bag when moving downwards, and gas in the blowing air bag can blow out the blockage in the blanking channel upwards through the gas outlet and the blowing air hole. This application sweeps the gasbag through setting up between last vibration board, bottom plate, and the gasbag is swept in the compression when going up vibration board downstream, sweeps the air in the gasbag through the gas outlet, sweep the fumarole and spout into the blanking passageway and along sweeping the fumarole tilt up blowout, can prevent effectively that the sieve mesh from blockking up, and the screening efficiency is high, can effectively improve the processing quality of tealeaves.

Description

Sieving mechanism for tea processing
Technical Field
The invention relates to a tea processing technology, in particular to a screening device for tea processing.
Background
Tea leaves are from China, and the first trails of artificially planted tea leaves are found in the field snail site of Yuyao in Zhejiang, which has been in the history for over six thousand years. According to the fermentation degree, the tea can be divided into green tea, yellow tea, white tea, oolong tea, black tea and black tea; the tea can be spring tea, summer tea, autumn tea and winter tea according to the seasons.
In the tea processing process, fresh leaves or finished products need to be screened to ensure the quality of the tea. The screening machine capable of automatically extracting high-quality tea leaves disclosed in the Chinese patent document with the publication number of CN215587140U can separate impurities such as sand, dust and the like in fresh leaves through the arrangement of the motor, the connecting rod, the shell, the first movable block, the second movable block and the spring, can also avoid the blockage of the vibrating screen plate caused by the accumulation of the tea leaves, and improves the screening efficiency. "a tealeaves and tea dust sieving mechanism" as chinese patent document publication of grant publication No. CN214718241U, the outside of box is equipped with the motor, the box includes curb plate one and curb plate two, be equipped with the screening subassembly in the box, through the cam, the setting of connecting rod and spring and slider, when the cam drives the connecting rod motion, receive the influence of spring, the slider can be the state of a shake, the shake through the slider drives the screen cloth and shakes, the shake of screen cloth can realize screening the tealeaves that will be in the box, tealeaves has been realized from this, the separation of tea dust, can conveniently take out the tealeaves that screens, be favorable to large-scale screening tealeaves.
Present sieving mechanism for tea processing although can filter fresh leaf, the tealeaves after frying, nevertheless appear blockking up easily among the screening process, influences screening effect and screening efficiency, awaits urgent need to improve.
Disclosure of Invention
The invention aims to provide a screening device for tea processing, which is used for solving the problem that the existing screening device for tea processing is easy to block.
In order to solve the problems, the invention provides a screening device for tea processing, wherein a screening bin is arranged on a rack, a vibrating screen which is obliquely arranged is arranged in the screening bin, a feeding hole which corresponds to the upper end of the vibrating screen is arranged on the screening bin, a discharging hole which corresponds to the lower end of the vibrating screen is also arranged on the screening bin, the vibrating screen comprises an upper vibrating plate and a lower fixing plate which are arranged in parallel, and a plurality of springs for supporting the upper vibrating plate are arranged on the upper side of the lower fixing plate so that the upper vibrating plate can vibrate up and down relative to the lower fixing plate; an upper sieve hole is formed in the upper vibrating plate, a lower sieve hole is formed in the lower fixing plate, the upper sieve hole and the lower sieve hole are correspondingly arranged, and a blanking channel communicated with the upper sieve hole and the lower sieve hole is formed between the upper sieve hole and the lower sieve hole; the lower fixing plate still be equipped with between the upper vibration board and sweep the gasbag, sweep the upper end of gasbag with the lower fixed surface of upper vibration board links to each other, sweep the lower extreme of gasbag with the lower fixing plate is fixed to link to each other and is equipped with the air inlet, sweep be equipped with on the lateral wall of gasbag with the gas outlet of blanking passageway intercommunication, still be equipped with on the blanking passageway with the gas outlet corresponds and export tilt up's the fumarole that sweeps, extrude when the upper vibration board moves down sweep the gasbag, sweep the gas accessible in the gasbag the gas outlet sweep the fumarole will plug in the blanking passageway upwards blows off.
The screening device for tea processing provided by the invention also has the following technical characteristics:
furthermore, the lower side of the upper vibrating plate is provided with a first blanking ring corresponding to the upper sieve pore, the upper side of the lower fixing plate is provided with a blanking cone corresponding to the lower sieve pore, the opening of the blanking cone faces downwards, the upper side of the blanking cone is provided with a second blanking ring, the upper end of the second blanking ring is arranged in the first blanking ring in a penetrating manner, and the first blanking ring, the second blanking ring and the blanking cone form the blanking channel.
Further, the lower side of the second blanking ring is provided with the purging air injection hole.
Furthermore, the lower side of the second blanking ring is provided with four purging air injection holes along the circumferential direction.
Furthermore, the air inlet and the air outlet are both provided with one-way valves.
Furthermore, a long slotted hole vertical to the upper vibrating plate is formed in the side wall of the screening bin, and a deflector rod penetrating through the long slotted hole and extending out of the screening bin is arranged on the side wall of the upper vibrating plate; the rack is also provided with a driving motor for driving the shifting rod to reciprocate up and down in the elongated slot, and a transmission assembly is arranged between the driving motor and the shifting rod.
Furthermore, the transmission assembly comprises a cam arranged on the side wall of the screening bin, the central rotating shaft of the cam is positioned on the upper side of the long slotted hole and on the extension line of the long slotted hole, and the outer edge of the cam is in press contact with the shifting lever so that the upper vibrating plate compresses the spring.
Furthermore, the shifting lever is also provided with a roller, and the outer edge of the cam is pressed and contacted on the outer edge of the roller.
Further, still install on the central pivot and be used for the drive central pivot pivoted belt pulley, driving motor's pivot with be equipped with driving belt between the belt pulley.
Furthermore, the outer contour curve of the cam comprises an arc transition section, a high-speed pressing section and a slow-speed rising section which are sequentially connected, wherein a central angle corresponding to the slow-speed rising section is more than or equal to two times of a central angle corresponding to the high-speed pressing section, and a central angle corresponding to the arc transition section is more than a central angle corresponding to the high-speed pressing section.
The invention has the following beneficial effects:
1. the vibrating screen is characterized in that a vibrating screen consisting of an upper vibrating plate and a lower fixing plate is adopted, a blanking channel is arranged between the upper vibrating plate and the lower fixing plate, when the upper vibrating plate vibrates up and down relative to the lower fixing plate, impurities and powder in materials on the upper side of the upper vibrating plate can fall into a slag collecting hopper on the lower side through the blanking channel, and the screened materials slide down along the surface of the upper vibrating plate and slide out from a discharge port on the lower end, so that the screening operation can be continuously carried out, and the screening efficiency is high;
2. the purging air bag is arranged between the upper vibrating plate and the lower fixing plate, so that the purging air bag can purge the blanking channel, and the tea can be effectively prevented from blocking the blanking channel; particularly, after being picked, the tea leaves to be processed are flaky or strip-shaped, light in weight and irregular in shape, and easily block the blanking channel, and the blanking channel is swept in an air injection manner, so that the tea leaves to be processed can be effectively prevented from blocking the blanking channel;
3. the upper end of the purging air bag is fixedly connected with the lower surface of the upper vibrating plate, the lower end of the purging air bag is fixedly connected with the lower fixing plate, and the side wall of the purging air bag is of a foldable and telescopic corrugated cylindrical structure; when the upper vibrating plate moves downwards, the blowing air bag is compressed, and air in the blowing air bag is sprayed into the blanking channel through the air outlet and the blowing air injection hole and is upwards sprayed out along the blowing air injection hole in an inclined manner; the blowing air bag is stretched when the upper vibrating plate moves upwards, air on the lower side of the lower fixing plate enters the blowing air bag from the air inlet, driving components such as an air pump and the like do not need to be independently arranged for the blowing air bag, the blowing air bag is driven to blow up and suck air by utilizing the up-and-down reciprocating vibration of the upper vibrating plate, a blanking channel can be blown by the blowing air bag in each vibration period, and screen holes can be effectively prevented from being blocked while vibrating and screening;
4. the cam mechanism is adopted between the driving motor and the deflector rod to drive the upper vibrating plate to vibrate up and down in a reciprocating manner, and the central angle corresponding to the highest-speed pressing section in the outer contour curve of the cam is smaller than the central angle corresponding to the slow-speed rising section, so that the air injection time for purging the air bag in a vibration period is smaller than that for air suction, a larger air injection flow rate can be provided, and purging is reliable.
Drawings
Fig. 1 is a schematic structural view of a screening apparatus for tea processing according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a schematic view of the internal structure of a screening apparatus for tea processing according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a purge bladder in an embodiment of the invention;
fig. 5 is a schematic structural view of a vibrating screen in an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In one embodiment of the screening device for processing tea leaves according to the present invention as shown in fig. 1 to 5, a screening bin 20 is disposed on a frame 10 of the screening device for processing tea leaves, a vibrating screen 30 is disposed in the screening bin 20, the screening bin 20 is provided with a feeding port 21 corresponding to an upper end of the vibrating screen 30, the screening bin 20 is further provided with a discharging port 22 corresponding to a lower end of the vibrating screen 30, a slag collecting hopper 23 is further disposed at a lower side of the vibrating screen 30, the vibrating screen 30 includes an upper vibrating plate 31 and a lower fixing plate 32 disposed in parallel, and a plurality of springs 33 supporting the upper vibrating plate 31 are disposed at an upper side of the lower fixing plate 32 such that the upper vibrating plate 31 can vibrate up and down relative to the lower fixing plate 32; an upper sieve hole 301 is formed in the upper vibrating plate 31, a lower sieve hole 302 is formed in the lower fixing plate 32, the upper sieve hole 301 and the lower sieve hole 302 are arranged correspondingly, and a blanking channel 303 communicated with the upper sieve hole 301 and the lower sieve hole 302 is formed between the upper sieve hole 301 and the lower sieve hole 302; a blowing air bag 34 is further arranged between the lower fixing plate 32 and the upper vibrating plate 31, the upper end of the blowing air bag 34 is fixedly connected with the lower surface of the upper vibrating plate 32, the lower end of the blowing air bag 34 is fixedly connected with the lower fixing plate 31 and is provided with an air inlet 341, an air outlet 342 communicated with the blanking channel 303 is arranged on the side wall of the blowing air bag 34, a blowing air hole 35 which corresponds to the air outlet 342 and is inclined upwards is further arranged on the blanking channel 303, the blowing air bag 34 is extruded when the upper vibrating plate 31 moves downwards, and air in the blowing air bag 34 can be blown out upwards through the air outlet 342 and the blowing air hole 35 to blow out blockages in the blanking channel 303.
The vibrating screen is characterized in that the vibrating screen consists of an upper vibrating plate and a lower fixing plate, a blanking channel is arranged between the upper vibrating plate and the lower fixing plate, and when the upper vibrating plate vibrates up and down relative to the lower fixing plate, impurities and powder in materials on the upper side of the upper vibrating plate can fall into a slag collecting hopper on the lower side through the blanking channel; the blowing air bag is arranged between the upper vibrating plate and the lower fixing plate, the blowing air bag is compressed when the upper vibrating plate moves downwards, and air in the blowing air bag is sprayed into the blanking channel through the air outlet and the blowing air injection hole and is sprayed out obliquely upwards along the blowing air injection hole, so that the blowing air bag can blow the blanking channel, and tea leaves can be effectively prevented from blocking the blanking channel; the gasbag is swept in tensile when upper vibrating plate moves upwards, and the air of bottom plate downside gets into from the air inlet and sweeps the gasbag, can prevent effectively that the sieve mesh from blockking up when vibration screening from this, and screening efficiency is high, can effectively improve the processing quality of tealeaves.
In an embodiment of the present application, preferably, a first blanking ring 311 corresponding to the upper screen hole 301 is disposed on a lower side of the upper vibrating plate 31, a blanking cone 321 corresponding to the lower screen hole 302 is disposed on an upper side of the lower fixing plate 32, an opening of the blanking cone 321 faces downward, a second blanking ring 322 is disposed on an upper side of the blanking cone 321, an upper end of the second blanking ring 322 is inserted into the first blanking ring 311 and can slide up and down, and the first blanking ring 311, the second blanking ring 322, and the blanking cone 321 form a blanking channel 303, so that impurities and powder in the material can fall through the blanking channel to realize screening when the upper vibrating plate vibrates up and down.
In one embodiment of the present application, preferably, the lower side of the second blanking ring 322 is provided with the purge air injection holes 35, and preferably, the connection between the lower side of the second blanking ring 322 and the upper end of the blanking cone 321 is provided with the purge air injection holes 35, so that the air in the purge air bag can be reliably injected into the blanking channel in an upward inclined manner through the purge air injection holes 35.
In an embodiment of the present application, preferably, the lower side of the second blanking ring 322 is provided with four purging air injection holes 35 along the circumferential direction, a purging air bag is provided between four adjacent blanking channels, each purging air bag is provided with four air outlets, each air outlet is connected to one blanking channel, thereby the arrangement of the purging air bags is reasonable, and the purging air bags can reliably purge the blanking channels when the upper vibrating plate moves downwards so as to prevent the blocking of the blanking channels. Preferably, the air inlet 341 and the air outlet 342 are both provided with a one-way valve to ensure that the air inlet 341 and the air outlet 342 are both communicated in one way.
In one embodiment of the present application, preferably, the side wall of the screening chamber 20 is provided with a long slot 24 perpendicular to the upper vibrating plate 31, and the side wall of the upper vibrating plate 31 is provided with a driving lever 36 which passes through the long slot 24 and extends out of the screening chamber 20; the frame 10 is further provided with a driving motor 11 for driving the shift lever 36 to reciprocate up and down in the elongated slot 24, and a transmission assembly is further provided between the driving motor 11 and the shift lever 36, so that the upper vibration plate 31 can be driven to vibrate up and down through the shift lever 36.
In one embodiment of the present application, preferably, the transmission assembly includes a cam 12 mounted on a side wall of the screening chamber 20, a central rotating shaft of the cam 12 is located on an upper side of the long slot 24 and on an extension line of the long slot 24, an outer edge of the cam 12 is pressed against a lever 36 so that the upper vibration plate 31 presses the spring 33, when the cam 12 rotates and presses the lever 36, the upper vibration plate 31 moves downward against a resistance of the spring 33, and after the upper vibration plate 31 moves to a lowest position under the action of the cam, the upper vibration plate 31 moves upward under an elastic force of the spring 33 when the cam continues to rotate, so that the upper vibration plate can reliably reciprocate up and down through the combined action of the cam and the spring. Preferably, the lever 36 is further provided with a roller 361, and the outer edge of the cam 12 is pressed against the outer edge of the roller 361, so that the friction generated when the cam drives the lever to move up and down is reduced, and the transmission is reliable.
In one embodiment of the present application, preferably, a pulley 13 for driving the central rotating shaft to rotate is further mounted on the central rotating shaft of the cam 12, and a transmission belt 14 is provided between the rotating shaft of the driving motor 11 and the pulley 13, so that the transmission is reliable. Preferably, two shift levers 36 are provided on each side of the upper vibrating plate 31, two corresponding elongated slots 24 are provided on each side of the screening chamber 20, and the driving motor 11 drives the two belt pulleys 13 to rotate simultaneously through the driving belt 14.
In one embodiment of the present application, preferably, as shown in fig. 2, the outer contour curve of the cam 12 includes a circular arc transition section a-b, a maximum speed pressing section b-c, and a slow speed rising section c-a, a central angle α corresponding to the slow speed rising section c-a is greater than or equal to twice a central angle β corresponding to the maximum speed pressing section b-c, a central angle γ corresponding to the circular arc transition section a-b is greater than a central angle β corresponding to the maximum speed pressing section b-c, specifically, two points a and b on the outer contour curve of the cam 12 are the same and closest to the center of the cam, and a point c on the outer contour curve of the cam 12 is the farthest from the center of the cam; in a vibration period of the upper vibration plate 31, the time for the vibration plate 31 to move downwards is shorter than the time for the vibration plate 31 to move upwards, so that the air injection time for blowing the air bag is shorter than the air suction time, a larger air injection flow rate can be provided, blowing is reliable, and the blockage of a blanking channel can be effectively prevented.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A screening device for tea processing is characterized in that the screening bin is arranged on a rack, a vibrating screen is obliquely arranged in the screening bin, a feeding hole corresponding to the upper end of the vibrating screen is formed in the screening bin, a discharging hole corresponding to the lower end of the vibrating screen is further formed in the screening bin, the screening device is characterized in that the vibrating screen comprises an upper vibrating plate and a lower fixing plate which are arranged in parallel, and a plurality of springs for supporting the upper vibrating plate are arranged on the upper side of the lower fixing plate to enable the upper vibrating plate to vibrate up and down relative to the lower fixing plate; an upper sieve mesh is arranged on the upper vibrating plate, a lower sieve mesh is arranged on the lower fixing plate, the upper sieve mesh and the lower sieve mesh are correspondingly arranged, and a blanking channel communicated with the upper sieve mesh and the lower sieve mesh is formed between the upper sieve mesh and the lower sieve mesh; the lower fixing plate and the upper vibrating plate are further provided with blowing air bags, the upper ends of the blowing air bags are fixedly connected with the lower surface of the upper vibrating plate, the lower ends of the blowing air bags are fixedly connected with the lower fixing plate and are provided with air inlets, air outlets communicated with the blanking channel are formed in the side wall of the blowing air bags, blowing air injection holes which correspond to the air outlets and are inclined upwards are further formed in the blanking channel, the upper vibrating plate is extruded when moving downwards to blow the blowing air bags, and gas in the blowing air bags can pass through the air outlets and can be blown out of blockages in the blanking channel upwards.
2. The screening apparatus for tea processing according to claim 1, wherein: the lower side of the upper vibrating plate is provided with a first blanking ring corresponding to the upper sieve pore, the upper side of the lower fixing plate is provided with a blanking cone corresponding to the lower sieve pore, the opening of the blanking cone faces downwards, the upper side of the blanking cone is provided with a second blanking ring, the upper end of the second blanking ring penetrates through the first blanking ring, and the first blanking ring, the second blanking ring and the blanking cone form the blanking channel.
3. The screening apparatus for tea processing according to claim 2, wherein: and the lower side of the second blanking ring is provided with the purging air injection hole.
4. The screening apparatus for tea processing according to claim 3, wherein: the lower side of the second blanking ring is provided with four blowing air injection holes along the circumferential direction.
5. The screening apparatus for tea processing according to claim 1, wherein: the air inlet and the air outlet are both provided with one-way valves.
6. The screening apparatus for tea processing according to claim 1, wherein: a long slotted hole vertical to the upper vibrating plate is formed in the side wall of the screening bin, and a deflector rod penetrating through the long slotted hole and extending out of the screening bin is arranged on the side wall of the upper vibrating plate; the rack is also provided with a driving motor for driving the shifting rod to reciprocate up and down in the elongated slot, and a transmission assembly is arranged between the driving motor and the shifting rod.
7. The screening apparatus for tea processing according to claim 6, wherein: the transmission assembly comprises a cam arranged on the side wall of the screening bin, the central rotating shaft of the cam is positioned on the upper side of the long slotted hole and on the extension line of the long slotted hole, and the outer edge of the cam is pressed on the shifting rod so that the upper vibrating plate compresses the spring.
8. The screening apparatus for tea processing according to claim 7, wherein: and the shifting lever is also provided with a roller, and the outer edge of the cam is pressed and contacted on the outer edge of the roller.
9. The screening apparatus for tea processing according to claim 7, wherein: the central rotating shaft is further provided with a belt pulley for driving the central rotating shaft to rotate, and a transmission belt is arranged between the rotating shaft of the driving motor and the belt pulley.
10. The screening apparatus for tea processing according to claim 7, wherein: the outer contour curve of the cam comprises an arc transition section, a high-speed pressing section and a slow-speed lifting section which are sequentially connected, wherein a central angle corresponding to the slow-speed lifting section is more than or equal to two times of a central angle corresponding to the high-speed pressing section, and a central angle corresponding to the arc transition section is more than a central angle corresponding to the high-speed pressing section.
CN202210587772.4A 2022-05-27 2022-05-27 Sieving mechanism for tea processing Pending CN114918130A (en)

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Application Number Priority Date Filing Date Title
CN202210587772.4A CN114918130A (en) 2022-05-27 2022-05-27 Sieving mechanism for tea processing

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Application Number Priority Date Filing Date Title
CN202210587772.4A CN114918130A (en) 2022-05-27 2022-05-27 Sieving mechanism for tea processing

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CN114918130A true CN114918130A (en) 2022-08-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115338111A (en) * 2022-10-14 2022-11-15 江苏兴野食品有限公司 Dehydrated scallion powder screening device

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CN209849263U (en) * 2019-03-23 2019-12-27 上海练定混凝土制品有限公司 Vibrating screening machine
CN111305363A (en) * 2019-12-12 2020-06-19 高建 Prevent blockking up type well lid that absorbs water
JP2021003671A (en) * 2019-06-26 2021-01-14 稔 甲斐 Net for vibration sieve with blockade prevention function and vibration sieve device
CN215902183U (en) * 2021-10-22 2022-02-25 保靖县古茶园黄金茶有限公司 Tealeaves and tea dust separation sieving mechanism

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Publication number Priority date Publication date Assignee Title
CN103410643A (en) * 2013-07-19 2013-11-27 龙口龙泵燃油喷射有限公司 Electronic unit composite pump for light-vehicle diesels
CN108442408A (en) * 2018-03-25 2018-08-24 黎剑鸣 One kind is from block-proof type municipal drainage well lid
CN209565219U (en) * 2018-12-29 2019-11-01 绍兴日铸茶业有限公司 A kind of tealeaves circular screening machine of uniform material casting and anti-sieve pore blockade
CN209849263U (en) * 2019-03-23 2019-12-27 上海练定混凝土制品有限公司 Vibrating screening machine
JP2021003671A (en) * 2019-06-26 2021-01-14 稔 甲斐 Net for vibration sieve with blockade prevention function and vibration sieve device
CN111305363A (en) * 2019-12-12 2020-06-19 高建 Prevent blockking up type well lid that absorbs water
CN215902183U (en) * 2021-10-22 2022-02-25 保靖县古茶园黄金茶有限公司 Tealeaves and tea dust separation sieving mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115338111A (en) * 2022-10-14 2022-11-15 江苏兴野食品有限公司 Dehydrated scallion powder screening device

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