CN109007002B - Fruit screening and fresh-keeping film coating machine - Google Patents

Fruit screening and fresh-keeping film coating machine Download PDF

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Publication number
CN109007002B
CN109007002B CN201810791555.0A CN201810791555A CN109007002B CN 109007002 B CN109007002 B CN 109007002B CN 201810791555 A CN201810791555 A CN 201810791555A CN 109007002 B CN109007002 B CN 109007002B
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China
Prior art keywords
fruit
pipeline
screening
air
driving
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CN201810791555.0A
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Chinese (zh)
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CN109007002A (en
Inventor
袁秋萍
班兆军
张晶琳
费溧锋
周斌
叶盛德
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Zhejiang Lover Health Science and Technology Development Co Ltd
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Zhejiang Lover Health Science and Technology Development Co Ltd
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Priority to CN201810791555.0A priority Critical patent/CN109007002B/en
Publication of CN109007002A publication Critical patent/CN109007002A/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
    • A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N15/00—Machines or apparatus for other treatment of fruits or vegetables for human purposes; Machines or apparatus for topping or skinning flower bulbs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/10—Screens in the form of endless moving bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N15/00—Machines or apparatus for other treatment of fruits or vegetables for human purposes; Machines or apparatus for topping or skinning flower bulbs
    • A23N2015/008—Sorting of fruit and vegetables

Abstract

The invention discloses a fruit screening and fresh-keeping film coating machine, which comprises a screening device and a film coating device, wherein the screening device comprises at least two feed openings for outputting fruits to be coated at all levels, and the film coating device comprises: a dip coating tank filled with coating liquid; the fruit conveying pipeline is arranged in the dip coating groove and corresponds to the feed opening, a liquid inlet is formed in the pipe wall, and a first fruit conveying mechanism is arranged at the bottom side of the pipe wall; the fruit output pipeline is connected with the fruit conveying pipeline and is arranged obliquely upwards relative to the fruit conveying pipeline, and a second fruit conveying mechanism is arranged on the pipe wall; the air drying unit comprises an air drying pipeline connected with the fruit output pipeline; this application will be in the unanimous fruit of size after screening fruit and put into same fruit pipeline, will air-dry the internal diameter of pipeline, fruit output pipeline and fruit pipeline and set up to suit with the external diameter of waiting to film fruit, fruit is filmed one by one, air-dries one by one along the pipeline trend, films efficient, air-dries efficiently.

Description

Fruit screening and fresh-keeping film coating machine
Technical Field
The invention belongs to the technical field of fruit preservation, and particularly relates to a fruit screening and fresh-keeping film coating machine.
Background
The fruits can provide vitamins, minerals and organic acids which are easy to be lacked by human bodies, and ensure the health of people, so the fruits become important food loved by people. However, the fresh fruits still undergo complex physiological changes, biological changes and physical changes after being harvested, and cells and tissues still continue to perform respiration and transpiration, so that the fruits are easy to generate phenomena such as shrinkage, weight loss, wilting, deterioration and the like, and the quality and the sales of the fruits and the vegetables are influenced.
In the process of transporting and storing fruits, in order to achieve the effect of antisepsis and preservation, physical preservation methods such as modified atmosphere refrigeration and the like are used. The storage and the refrigeration mechanical equipment need more capital investment, the operation cost is higher, and the storage room operation requirement has good management technology.
Therefore, the fruit can be preserved conveniently by using the food additive, and the cost can be greatly saved. The fruit and vegetable coating preservative can form a layer of coating on the surface of fruits, and the coating can block the pores of the fruits to a certain extent, inhibit respiration, reduce nutrient consumption, inhibit water diffusion, inhibit microorganism invasion and prevent spoilage.
In the prior art, a film coating machine is usually adopted to coat the fruit and vegetable film coating preservative on the fruits and vegetables. The Chinese utility model patent application with the application number of CN201620437422.X discloses a fruit and vegetable vacuum film coating machine, which comprises a film coating box with a vacuum sealing cavity therein, wherein two opposite sides of the film coating box are respectively provided with a film coating inlet and a film coating outlet, a support frame is respectively arranged outside the film coating inlet and the film coating outlet, a conveying chain passing through the film coating box is arranged between the two support frames, and the conveying chain is provided with a dip-coating frame for loading fruits and vegetables; the coating box is internally provided with a dip tank filled with coating liquid, the part of the conveying chain above the dip tank is in a concave arc shape, and the dip-coating rack on the conveying chain can dip into the dip tank when moving to the concave part.
The fruit and vegetable vacuum film coating machine adopts the box-shaped dip-coating frame to load the fruit and vegetable, and because the film coating is carried out by taking the dip-coating frame as a unit, in order to improve the film coating efficiency, more fruit and vegetable are usually loaded in the dip-coating frame, and the mutual overlapping of the fruit and vegetable is not beneficial to the subsequent film coating air drying, so that the air drying time is long, and the air drying efficiency is low; moreover, the workers need to continuously load the fruits and the vegetables into the dip-coating rack, so that the working strength is high, and the automation degree is low.
Disclosure of Invention
The invention aims to provide a fruit screening and fresh-keeping film coating machine which can screen fruits and continuously coat and air-dry the fruits one by one, and the film coating efficiency and the air-drying efficiency are greatly improved.
In order to achieve the above purpose, the technical solution of the present application is as follows:
the utility model provides a fruit screening and fresh-keeping coating machine, is including being used for treating the screening plant that the fruit that coats carries out hierarchical screening according to the external diameter size to and be used for waiting to coat the coating device that the fruit coated film after the screening carries out the coating, screening plant including being used for outputting at least two feed openings that wait to coat the fruit at different levels, the coating device include:
a dip coating tank filled with coating liquid;
the fruit conveying pipeline is arranged in the dip coating groove, the fruit conveying pipeline is connected with the feed openings and is arranged in a one-to-one correspondence manner, at least one liquid inlet is formed in the pipe wall of the fruit conveying pipeline, and a first fruit conveying mechanism is arranged at the bottom of the fruit conveying pipeline;
the fruit output pipeline is connected with the discharge end of the fruit conveying pipeline, the fruit output pipeline is arranged obliquely upwards relative to the fruit conveying pipeline, and a second fruit conveying mechanism is arranged on the pipe wall of the fruit output pipeline;
the air drying unit is used for air-drying the coated fruits and comprises an air drying pipeline connected with a fruit output pipeline;
the inner diameters of the air drying pipeline, the fruit output pipeline and the fruit conveying pipeline are all adapted to the outer diameter of the fruit to be coated.
This application adopts screening plant to sort the fruit that will wait to coat film according to the size earlier, divide into different grades, and the fruit of every grade is put into same fruit pipeline.
This application will air-dry the pipeline, fruit output pipeline and fruit pipeline's internal diameter sets up to suit with the external diameter of waiting to coat fruit, when coating and air-drying, fruit is arranged one by one along the pipeline trend, coat one by one, air-dry one by one, there is not mutual superpose phenomenon between the fruit, can not only be air-dried rapidly, air-dry efficiently, and fruit in the feeder hopper gets into fruit transfer passage in succession, the staff only need the interval certain time with the feeder hopper fill up can, greatly reduced working strength, the efficiency of coating has been improved.
In foretell fruit screening and fresh-keeping coating machine, first fruit conveying mechanism include:
the driving rotating wheel is arranged at the discharge end of the fruit conveying pipeline;
the driven rotating wheel is arranged at the feeding end of the fruit conveying pipeline;
the first conveying belt is sleeved between the driven rotating wheel and the driving rotating wheel;
the central shaft of the driving rotating wheel and the central shaft of the driven rotating wheel are in sealed rotating fit with the side wall of the dip coating tank, and the central shaft of the driving rotating wheel is fixedly connected with an output shaft of the first motor; the bottom side of the fruit conveying pipeline is provided with a first accommodating opening which is adaptive to the width of the conveying belt.
The conveyer belt rotates around driven runner and initiative runner under the drive of initiative runner, and after fruit got into fruit pipeline, the conveyer belt was about to carry the discharge end from fruit pipeline's feed end with fruit, accomplishes and coats the film.
In order to bring the coating liquid into the air drying channel as little as possible, the fruit output channel between the air drying channel and the fruit conveying pipeline is obliquely and upwards arranged, the feed end of the fruit conveying pipeline is soaked in the coating liquid, and the discharge end of the fruit conveying pipeline extends to the position above the liquid level of the coating liquid and outside the coating groove.
In order to move the fruits along the fruit output channel which is inclined upwards, in the fruit screening and fresh-keeping film coating machine, the fruit output pipeline is positioned in the dipping and coating groove, two second accommodating openings are oppositely arranged on the pipe wall of the fruit output pipeline, each second accommodating opening is provided with a row of fruit pushing wheels, the rotating directions of all the fruit pushing wheels in the same row are the same, and the rotating directions of the two rows of fruit pushing wheels are opposite;
one end of the central shaft of the fruit propelling wheel is in rotary fit with the fruit output pipeline, and the other end of the central shaft of the fruit propelling wheel is in sealed rotary fit with the side wall of the dip coating groove; a driving mechanism for driving the central shaft of the fruit propelling wheel to rotate is arranged outside the dip coating groove.
A fruit output channel is formed between the two rows of fruit pushing wheels with opposite rotating directions, and under the action of the two rows of fruit pushing wheels, the fruits can be conveyed into the air drying pipeline along the fruit output channel.
The two rows of fruit pushing wheels can be oppositely arranged on any radial line of the fruit output pipeline, but in order to enable the whole structure of the fruit fresh-keeping film coating machine to be compact, in the fruit screening and fresh-keeping film coating machine, the two rows of fruit pushing wheels are respectively arranged at the top side and the bottom side of the fruit output pipeline, and the axial extension direction of the fruit pushing wheels is parallel to the axial extension direction of the driving rotating wheel;
for a fruit pushing wheel at the bottom side of the fruit output duct, the driving mechanism comprises:
the first driving gear is fixed on the central shaft of the driving rotating wheel;
the first driven gear is fixed on the central shaft of the fruit propelling wheel;
the first transmission gear is meshed with the first driven gear and the first driving gear, and the central shaft of the first transmission gear is in sealed rotating fit with the side wall of the dip coating groove;
the central shaft of the second transmission gear is in sealed rotating fit with the side wall of the dip coating groove;
for a fruit pusher wheel at a top side of the fruit output duct, the drive mechanism comprises:
the second driving gear is fixed on the central shaft of one of the fruit propelling wheels, and the central shaft of the fruit propelling wheel is fixedly connected with the output shaft of the second motor;
the second driven gear is fixed on the central shaft of the other fruit propelling wheel;
and the central shaft of the third transmission gear is in sealed rotating fit with the side wall of the dip coating groove.
When the two rows of fruit propulsion wheels are respectively arranged at the top side and the bottom side of the fruit output pipeline, the drainage fruit propulsion wheel at the bottom side is closer to the driving rotating wheel and can be linked with the driving rotating wheel, so that an independent driving mechanism is not required to be arranged for the drainage fruit propulsion wheel, and only the independent driving mechanism is required to be arranged for the drainage fruit propulsion wheel at the top side of the fruit output pipeline. Meanwhile, because the distance between the fruit propelling wheels in the same row is shorter, the second transmission gear or the third transmission gear can be directly adopted to realize the linkage of the adjacent fruit propelling wheels, and the rotating directions of the fruit propelling wheels in the same row are kept the same.
In the fruit screening and fresh-keeping film coating machine, the air drying unit comprises an air box, the top of the air box is provided with an air inlet, the bottom of the air box is provided with an air outlet, and a fan which is positioned between the air inlet and the air outlet and used for driving air to flow inside and outside the air box is arranged in the fan;
the air drying pipeline is obliquely arranged in the air box, the feeding end of the air drying pipeline is connected with the fruit output pipeline, and the discharging end of the air drying pipeline extends out of the air box; the pipe wall of the air drying pipeline is provided with a plurality of ventilation openings.
The air-dry passageway that the slope set up is convenient for get into the fruit that air-dries in the passageway and can roll along air-dry passageway by oneself, realizes air-drying fast evenly at the rolling in-process, finally rolls out from the discharge end of air-drying the passageway by oneself. In addition to this, the air drying pipeline can also set up first fruit conveying mechanism in the bottom side with reference to fruit conveying pipeline.
In the fruit screening and fresh-keeping coating machine, the bottom of the air box is provided with a coating liquid recovery port, and a coating liquid recovery pipeline is connected between the coating liquid recovery port and the dip coating groove;
the air outlet is provided with an extension sleeve for preventing the coating liquid from flowing out of the air outlet, and the extension sleeve is positioned in the air box. Therefore, after the coating liquid is accumulated at the bottom of the air box, the coating liquid can only flow out from the coating liquid recycling port and cannot flow into the extension sleeve and flow out from the air outlet, and the coating liquid is prevented from being wasted.
In foretell fruit screening and fresh-keeping coating machine, screening plant include the frame, be equipped with in the frame along a plurality of screening units that the vertical direction arranged, every screening unit all includes:
the driving roller and the auxiliary roller are respectively matched with the rack in a rotating way;
the second conveyor belts are sleeved between the driving rolling shaft and the auxiliary rolling shaft and are uniformly arranged according to a preset interval;
the third motor is used for driving the driving roller to rotate;
the material collecting pipeline is arranged at the discharge end of the second conveying belt, a material collecting port which is arranged opposite to the discharge end of the second conveying belt is formed at the feed end of the material collecting pipeline, and the material discharging port is formed at the discharge end of the material collecting channel;
and the distance between the two second conveyor belts in the corresponding screening units is gradually decreased along with the gradual decrease of the height of the screening units.
When the fruits to be coated are sieved, the fruits to be coated are poured onto the uppermost sieving unit, the fruits to be coated with the film, which have the particle sizes larger than that of the fruits on the second conveying belt, are intercepted on the second conveying belt, are conveyed to the material collecting pipeline by the second conveying belt, and enter the fruit conveying pipeline through the material outlet; and the fruits to be coated with the film, the particle sizes of which are smaller than the distance between the second conveyor belts, fall onto the second conveyor belt of the next layer of screening unit, so that mechanical automatic screening, feeding and film coating are realized.
In foretell fruit screening and fresh-keeping coating machine, above the superiors screening unit, the frame on be equipped with the feeder hopper that is in the feed end of second conveyer belt.
In foretell fruit screening and fresh-keeping coating machine, the discharging channel's of feeder hopper width and the distance that is in two second conveyer belts at the superiors screening unit both ends respectively suit, and discharging channel's discharge gate department still is equipped with the baffle that is close to second conveyer belt feed end one side. The width of the discharge channel is adapted to the distance between the two second conveyor belts at the two ends of the screening unit at the uppermost layer, so that fruits to be coated in the feed hopper can be uniformly conveyed to the feed ends of the two conveyor belts, and poor screening caused by concentrated accumulation is avoided; and the baffle is favorable to avoiding treating the fruit that coats and falls outside the frame from the second conveyer belt feed end.
In the fruit screening and fresh-keeping coating machine, the frame is provided with protective nets on two sides of the second transmission belt. The protection network helps to avoid the fruit to be coated on the second transmission belt from falling to the outside of the rack from two sides of the second transmission belt.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the steps of firstly, sorting fruits to be coated into different grades by adopting a screening device according to sizes, and placing the fruits of each grade into the same fruit conveying pipeline; this application will air-dry the pipeline, fruit output pipeline and fruit pipeline's internal diameter sets up to suit with the external diameter of waiting to coat fruit, when coating and air-drying, fruit is arranged one by one along the pipeline trend, coat one by one, air-dry one by one, there is not mutual superpose phenomenon between the fruit, can not only be air-dried rapidly, air-dry efficiently, and fruit in the feeder hopper gets into fruit transfer passage in succession, the staff only need the interval certain time with the feeder hopper fill up can, greatly reduced working strength, the efficiency of coating has been improved.
Drawings
FIG. 1 is a schematic structural view of a fruit screening and fresh-keeping film coating machine according to the present invention;
FIG. 2 is a schematic view of the screening device of FIG. 1 from another perspective;
FIG. 3 is an enlarged view of the fruit output duct and seasoning unit of FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;
FIG. 5 is an enlarged view of portion B of FIG. 3;
FIG. 6 is an enlarged view of portion C of FIG. 4;
FIG. 7 is a partial sectional view of A-A in FIG. 1.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1, the fruit screening and fresh-keeping film coating machine of the embodiment comprises a screening device 1 for grading and screening fruits to be coated according to the outer diameter size, and a film coating device 2 for coating the screened fruits to be coated with films.
Wherein, screening plant 1 includes frame 11, is equipped with a plurality of screening units that arrange along the vertical direction in the frame 11, and the quantity of screening unit can specifically set up according to specific need, and more then can realize more careful screening, and this embodiment has set up three screening unit, can treat to coat the fruit and carry out the screening of quartic, obtains treating of three kinds of specifications and coats the fruit and carry out follow-up coating.
As shown in fig. 1 and fig. 2, in this embodiment, each screening unit includes a driving roller 12 and an auxiliary roller 13 respectively rotatably engaged with the frame 11, a plurality of second conveyor belts 14 uniformly arranged according to a preset distance are sleeved between the driving roller 12 and the auxiliary roller 13, and the distance between two second conveyor belts 14 in the corresponding screening unit decreases gradually as the height of the screening unit decreases gradually; a third motor (not shown in the figure) for driving the driving roller 12 to rotate is installed on the frame 11, a material collecting pipeline 16 is obliquely arranged at the discharge end of the second conveyor belt 14, a material collecting port 17 arranged opposite to the discharge end of the second conveyor belt 14 is formed at the feed end of the material collecting pipeline 16, and a discharge port is formed at the discharge end of the material collecting pipeline 16.
As shown in fig. 1, the frame 11 is provided with protective nets 18 at two sides of the second conveyor belt 14 to prevent the fruits to be coated on the second conveyor belt 14 from falling from two sides of the second conveyor belt 14 to the outside of the frame 11.
As shown in fig. 1 and 2, above the uppermost screening unit, the frame 11 is provided with a feed hopper 15 at the feed end of the second conveyor belt 14; the width of the discharge channel 151 of the feed hopper 15 is adapted to the distance between the two second conveyor belts 14 respectively positioned at the two ends of the screening unit at the uppermost layer, so that poor screening caused by concentrated accumulation is avoided; the discharge port of the discharge channel 151 is provided with a baffle 152 near the side of the feed end of the second conveyor belt 14, so that the fruit to be coated is prevented from falling to the outside of the rack 11 from the feed end of the second conveyor belt 14.
After the screening is finished, the fruits to be coated can be coated and air-dried. As shown in fig. 1 and 7, the film coating device 2 comprises a dip coating tank 3 containing coating liquid, three fruit conveying pipelines 4 are horizontally arranged in the dip coating tank 3, and the material collecting pipelines 16 are connected with the fruit conveying pipelines 4 one by one, so that the fruits to be coated with different specifications can be coated simultaneously.
As shown in fig. 1, fig. 3 and fig. 5, a plurality of strip-shaped liquid inlets 41 are uniformly formed in the circumferential direction on the tube wall of the fruit conveying tube 4, and the coating liquid in the dip coating groove 3 flows into the fruit conveying tube 4 from the liquid inlets 41 to coat the fruit. In order to move the fruit entering the fruit conveying pipe 4 to the discharge end of the fruit conveying pipe 4, the first fruit conveying mechanism 5 is provided on the bottom side of the fruit conveying pipe 4 in the present embodiment. This first fruit conveying mechanism 5 includes: the fruit conveying device comprises a driving rotating wheel 51 arranged at the discharge end of the fruit conveying pipeline 4, a driven rotating wheel 52 arranged at the feed end of the fruit conveying pipeline 4, and a first conveying belt 53 sleeved between the driven rotating wheel 52 and the driving rotating wheel 51, wherein a first accommodating opening 42 matched with the width of the first conveying belt 53 is formed in the bottom side of the fruit conveying pipeline 4.
The driven rotating wheel central shaft 54 and the driving rotating wheel central shaft 55 are in sealed rotating fit with the side wall of the dip coating tank 3, and the driving rotating wheel central shaft 55 is further fixedly connected with an output shaft of a first motor (not shown in the figure), so that the driving rotating wheel 51 is driven.
The discharge end of the fruit conveying pipeline 4 is connected with the fruit output pipeline 6, and the fruit output pipeline 6 is used for conveying fruits to the outside of the dip coating groove 3, so that subsequent air drying operation is facilitated. In order to bring the coating liquid out of the dip coating tank 3 as little as possible, the fruit output pipeline 6 is arranged obliquely and upwards relative to the fruit conveying pipeline 4, the feeding end of the fruit conveying pipeline 4 is soaked in the coating liquid, and the discharging end extends to the position above the liquid level of the coating liquid and outside the dip coating tank 3.
As shown in fig. 3 and 5, the second fruit conveying mechanism 7 is provided on the fruit output pipeline 6 in the present embodiment, so as to convey the fruit out of the dip coating tank 3. The second fruit conveying mechanism 7 comprises two rows of fruit pushing wheels 71 respectively arranged at the bottom side and the top side of the fruit output pipeline 6, the axial extending direction of the fruit pushing wheels 71 is parallel to the axial extending direction of the driving rotating wheel 51, the rotating direction of all the fruit pushing wheels 71 in the same row is the same, the rotating directions of the two rows of fruit pushing wheels 71 are opposite, and a fruit output channel is formed between the two rows of fruit pushing wheels 71.
The fruit pushing wheel 71 is installed in the following manner: two second accommodating openings 61 for accommodating the fruit pushing wheels 71 are oppositely arranged on the bottom side and the top side of the fruit output pipeline 6, one end of the central shaft 73 of the fruit pushing wheel is in rotating fit with the fruit output pipeline 6, and the other end of the central shaft is in sealing rotating fit with the side wall of the dip coating groove 3.
As shown in fig. 4 and 6, the fruit pushing wheel 71 at the bottom side of the fruit output duct 6 rotates: a first driving gear 72 is fixedly arranged on the driving rotating wheel central shaft 55, first driven gears 74 are fixedly arranged on the fruit pushing wheel central shaft 73, a first transmission gear 75 meshed with the first driven gear 74 and the first driving gear 72 is arranged between the first driving gear 72 and the first driven gear 74, and the first transmission gear central shaft 76 is in sealed rotating fit with the side wall of the dip coating groove 3; a second transmission gear 77 meshed with the two adjacent first driven gears 74 is arranged between the two adjacent first driven gears 74, and a central shaft 78 of the second transmission gear is also in sealed rotating fit with the side wall of the dip coating tank 3. Thus, when the first motor drives the driving wheel center shaft 55 to rotate, the first driving gear 72 also drives one fruit pushing wheel 71 to rotate through the engagement of the first driving gear 75 and the first driven gear 74, and then drives the other fruit pushing wheels 71 to rotate through the engagement of the second driving gear 77 and the first driven gear 74.
And for the fruit pushing wheel 71 at the top side of the fruit output pipeline 6, the rotation mode is as follows: a second driving gear 79 is fixedly mounted on one of the fruit pushing wheel central shafts 73, and the fruit pushing wheel central shaft 73 is fixedly connected with an output shaft of a second motor (not shown in the figure); and a second driven gear 710 is fixedly arranged on the central shaft 73 of the other fruit propelling wheel, a third transmission gear 711 which can be meshed with the second driving gear 79 and the second driven gear 710 simultaneously is arranged between the second driven gear 710 and the second driving gear 79, a third transmission gear 711 which can be meshed with the two adjacent second driven gears 710 is also arranged between the two adjacent second driven gears 710, and the central shaft 712 of the third transmission gear is in sealed rotating fit with the side wall of the dip coating groove 3.
As shown in fig. 3 and 4, an air box 8 is provided outside the dip coating tank 3, an air inlet 81 is provided at the top of the air box 8, an air outlet 82 is provided at the bottom of the air box 8, and a fan 83 for driving air to flow inside and outside the air box 8 is provided in the fan 83 and between the air inlet 81 and the air outlet 82 in the box 8. The discharge end of the fruit output pipeline 6 is connected with an air drying pipeline 9 penetrating through the air box 8, the air drying pipeline 9 is obliquely arranged in the air box 8, and a plurality of ventilation openings 91 are formed in the pipe wall.
A coating liquid recovery port 84 is formed at the bottom of the bellows 8, and a coating liquid recovery pipeline 85 is connected between the coating liquid recovery port 84 and the dip coating tank 3; the air outlet 82 is provided with an extension sleeve 86 positioned in the air box 8, and after the coating liquid is accumulated at the bottom of the air box 8, the coating liquid can only flow out from the coating liquid recovery port 84 and cannot flow out from the air outlet 82 in the extension sleeve 86, so that the waste of the coating liquid is avoided.
In this embodiment, the inner diameters of the collecting pipeline 16, the fruit conveying pipeline 4, the fruit output pipeline 6 and the air drying pipeline 9 are all adapted to the outer diameter of the fruit to be coated poured into the feeding hopper, and the fruit to be coated can only pass through the collecting pipeline 16, the fruit conveying pipeline 4, the fruit output pipeline 6 and the air drying pipeline 9 one by one.
The working principle of the fruit screening and fresh-keeping film coating machine of the embodiment is as follows:
pouring fruits to be coated into a feed hopper 15, wherein the fruits to be coated fall onto a second conveyor belt 14 of the uppermost screening unit, and the fruits to be coated with the grain diameter larger than that of the second conveyor belt 14 are intercepted on the second conveyor belt 14, conveyed into a material collecting pipeline 16 by the second conveyor belt 14 and enter a corresponding fruit conveying pipeline 4 through a material outlet; the fruits to be coated with the film, the particle sizes of which are smaller than the distance between the second conveyor belts 14, fall onto the second conveyor belt 14 of the next layer of screening unit, and the steps are repeated, so that the finally screened fruits to be coated with the film of the three specifications enter the corresponding fruit conveying pipelines 4;
after the coated fruits enter the fruit conveying pipeline 4, the fruits move to the discharge end of the fruit conveying pipeline 4 under the action of the first conveyor belt 53, and the coating liquid filled in the fruit conveying pipeline 4 coats the fruits in the process; the fruits moving to the discharge end of the fruit conveying pipeline 4 enter the fruit output channel under the action of the two rows of fruit pushing wheels 71 and gradually climb into the air drying channel; the coated fruits are rolled one by one along the obliquely arranged air drying channel at the discharge end, and the fan 83 in the air box 8 dries the capsule on the surface of the fruits in the process.

Claims (6)

1. The utility model provides a fruit screening and fresh-keeping coating machine, its characterized in that is including being used for treating to coat the screening plant (1) that the fruit carries out hierarchical screening according to external diameter to and be used for waiting to coat the coating device (2) that the fruit carries out the film to the screening after, screening plant (1) including being used for exporting at least two feed openings that wait to coat the fruit at different levels, coating device (2) include:
a dip coating tank (3) filled with coating liquid;
the fruit conveying pipeline (4) is arranged in the dip coating groove (3), the fruit conveying pipeline (4) is connected with the feed opening and is arranged in a one-to-one correspondence manner, at least one liquid inlet (41) is formed in the pipe wall of the fruit conveying pipeline (4), and a first fruit conveying mechanism (5) is arranged at the bottom of the fruit conveying pipeline (4);
the fruit output pipeline (6) is connected with the discharge end of the fruit conveying pipeline (4), the fruit output pipeline (6) is arranged obliquely and upwards relative to the fruit conveying pipeline (4), and a second fruit conveying mechanism (7) is arranged on the pipe wall of the fruit output pipeline (6);
the air drying unit is used for air drying the coated fruits and comprises an air drying pipeline (9) connected with the fruit output pipeline (6); the air drying unit comprises an air box (8), the top of the air box (8) is provided with an air inlet (81), the bottom of the air box (8) is provided with an air outlet (82), and a fan (83) which is arranged between the air inlet (81) and the air outlet (82) and used for driving air to flow inside and outside the air box (8) is arranged in the air box (8); the air drying pipeline (9) is obliquely arranged in the air box (8), the feeding end of the air drying pipeline (9) is connected with the fruit output pipeline (6), and the discharging end of the air drying pipeline (9) extends out of the air box (8); a plurality of ventilation openings (91) are formed in the pipe wall of the air drying pipeline (9); a coating solution recovery port (84) is formed in the bottom of the air box (8), and a coating solution recovery pipeline (85) is connected between the coating solution recovery port (84) and the dip coating tank (3); an extension sleeve (86) for preventing the coating liquid from flowing out of the air outlet (82) is arranged at the air outlet (82), and the extension sleeve (86) is positioned in the air box (8);
the inner diameters of the air drying pipeline (9), the fruit output pipeline (6) and the fruit conveying pipeline (4) are all adapted to the outer diameter of the fruit to be coated;
the first fruit conveying mechanism (5) comprises:
the driving rotating wheel (51) is arranged at the discharge end of the fruit conveying pipeline (4);
a driven runner (52) arranged at the feed end of the fruit conveying pipeline (4);
a first transmission belt (53) sleeved between the driven rotating wheel (52) and the driving rotating wheel (51);
the driving rotating wheel central shaft (55) and the driven rotating wheel central shaft (54) are in sealed rotating fit with the side wall of the dip coating tank (3), and the driving rotating wheel central shaft (55) is fixedly connected with an output shaft of the first motor; a first accommodating opening (42) which is adaptive to the width of the conveyor belt is formed in the bottom side of the fruit conveying pipeline (4);
the fruit output pipeline (6) is positioned in the dip coating groove (3), two second accommodating openings (61) are oppositely arranged on the pipe wall of the fruit output pipeline (6), a row of fruit pushing wheels (71) is arranged at each second accommodating opening (61), the rotating directions of all the fruit pushing wheels (71) in the same row are the same, and the rotating directions of the two rows of fruit pushing wheels (71) are opposite; the two rows of fruit pushing wheels (71) are respectively positioned at the top side and the bottom side of the fruit output pipeline (6), and the axial extension direction of the fruit pushing wheels (71) is parallel to the axial extension direction of the driving rotating wheel (51);
one end of a central shaft (73) of the fruit propelling wheel is in running fit with the fruit output pipeline (6), and the other end of the central shaft is in sealing running fit with the side wall of the dip coating groove (3); a driving mechanism for driving the fruit propelling wheel central shaft (73) to rotate is arranged outside the dip coating groove (3).
2. Fruit screening and preservative film applicator according to claim 1, characterized in that said drive means comprise, for the fruit advancing wheel (71) on the bottom side of the fruit output duct (6):
a first drive gear (72) fixed to the drive pulley center shaft (55);
a first driven gear (74) fixed on the central shaft (73) of the fruit propelling wheel;
a first transmission gear (75) meshed with the first driven gear (74) and the first driving gear (72), wherein a central shaft (76) of the first transmission gear is in sealed rotation fit with the side wall of the dip coating tank (3);
a second transmission gear (77) meshed with two adjacent first driven gears (74), wherein a central shaft (78) of the second transmission gear is in sealed rotating fit with the side wall of the dip coating tank (3);
for a fruit pusher wheel (71) at the top side of the fruit output duct (6), the drive mechanism comprises:
a second driving gear (79) fixed on one fruit pushing wheel central shaft (73), wherein the fruit pushing wheel central shaft (73) is fixedly connected with an output shaft of a second motor;
a second driven gear (710) fixed on the central shaft (73) of the other fruit propelling wheel;
and a third transmission gear (711) meshed with the second driving gear (79) and the second driven gear (710) and meshed with two adjacent second driven gears (710), wherein the central shaft of the third transmission gear (711) is in sealed rotating fit with the side wall of the dip coating tank (3).
3. Fruit screening and fresh-keeping film applicator according to any one of claims 1 to 2, characterized in that the screening device (1) comprises a frame (11), on which frame (11) a plurality of screening units are arranged in a vertical direction, each screening unit comprising:
a driving roller (12) and an auxiliary roller (13) which are respectively matched with the frame (11) in a rotating way;
a plurality of second conveyor belts (14) which are sleeved between the driving rolling shaft (12) and the auxiliary rolling shaft (13) and are uniformly arranged according to a preset interval;
a third motor for driving the driving roller (12) to rotate;
the collecting pipeline (16) is arranged at the discharge end of the second conveyor belt (14), a collecting port (17) which is arranged opposite to the discharge end of the second conveyor belt (14) is formed in the feed end of the collecting pipeline (16), and the discharge port is formed in the discharge end of the collecting pipeline (16);
the distance between the two second conveyor belts (14) in the corresponding screening units is gradually reduced along with the gradual reduction of the height of the screening units.
4. Fruit sizing and preservative film machine according to claim 3, characterized in that above the uppermost sizing unit, the frame (11) is provided with a feed hopper (15) at the feed end of the second conveyor belt (14).
5. Fruit screening and fresh-keeping film coating machine according to claim 4, characterized in that the width of the discharge channel (151) of the feed hopper (15) is adapted to the distance between the two second conveyor belts (14) respectively located at the two ends of the uppermost screening unit, and the discharge port of the discharge channel (151) is further provided with a baffle (152) near the side of the feed end of the second conveyor belt (14).
6. Fruit screening and fresh-keeping film applicator according to claim 3, characterized in that the frame (11) is provided with protective screens (18) on both sides of the second conveyor belt (14).
CN201810791555.0A 2018-07-18 2018-07-18 Fruit screening and fresh-keeping film coating machine Active CN109007002B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111099319A (en) * 2019-12-25 2020-05-05 西安邮电大学 Apply to chocolate sugar-coat coating device of candy packing
CN111306893B (en) * 2020-03-11 2021-05-14 陕西事农果品有限公司 Spiral red date natural drying machine
CN111700108A (en) * 2020-05-13 2020-09-25 江苏大学 Blueberry film coating machine with high-voltage electric field sterilization device
CN114052273B (en) * 2021-11-11 2023-03-17 湖南大三湘茶油股份有限公司 Full-automatic tea-oil camellia fruit desquamation screening cold pressing device

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Publication number Priority date Publication date Assignee Title
CN201969692U (en) * 2011-03-23 2011-09-14 程利岳 Fruit sorting machine
CN102771549A (en) * 2012-07-31 2012-11-14 黄宇 Fruit automatic screening and fresh-maintaining processing device
CN205797792U (en) * 2016-06-14 2016-12-14 安徽日隆电子商务有限公司 A kind of fruit and vegerable screening installation
CN205848574U (en) * 2016-05-10 2017-01-04 侯萍 Fruit and vegerable vacuum evaporation machine
CN106423816A (en) * 2016-11-22 2017-02-22 三只松鼠股份有限公司 Cashew nut size classifying equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201969692U (en) * 2011-03-23 2011-09-14 程利岳 Fruit sorting machine
CN102771549A (en) * 2012-07-31 2012-11-14 黄宇 Fruit automatic screening and fresh-maintaining processing device
CN205848574U (en) * 2016-05-10 2017-01-04 侯萍 Fruit and vegerable vacuum evaporation machine
CN205797792U (en) * 2016-06-14 2016-12-14 安徽日隆电子商务有限公司 A kind of fruit and vegerable screening installation
CN106423816A (en) * 2016-11-22 2017-02-22 三只松鼠股份有限公司 Cashew nut size classifying equipment

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