CN210546424U - Efficient betel nut grading and screening equipment - Google Patents

Abstract

The utility model relates to a food processing equipment, especially a high-efficient classified screening equipment of sesame oil. The fruit conveying device comprises a conveying mechanism, a visual recognition system and a grading mechanism, wherein the conveying mechanism comprises a lifting machine positioned at the front end of the device, a fruit conveying pipeline positioned in the middle of the device and a backflow conveying line, one end of the backflow conveying line is positioned below the tail part of the fruit conveying pipeline, and the other end of the backflow conveying line is positioned above the lifting machine; compared with the prior art, the method has the following advantages: the structure is novel, and the carrier can be ensured to always rotate at a uniform speed; 2. the structure is reasonable, the failure rate can be effectively reduced, and the working efficiency is improved; 3. the realization of accurate 360-degree rotation of the areca nuts is ensured, and the detection qualification rate of a vision system is improved.

Description

Efficient betel nut grading and screening equipment

Technical Field

The utility model relates to a food processing equipment, especially a high-efficient classified screening equipment of sesame oil.

Background

Chinese patent application publication no: CN108515027A discloses a dry fruit sorting method using shape, size and grain, comprising the following steps: manually feeding and discharging, namely scattering the areca nuts into single areca nuts through an active rotary discharging device after feeding; detecting the betel nut rotation; imaging collection, wherein an industrial camera in an imaging detection box shoots image information of 24 betel nuts for 8 times and transmits the image information to an image processing system; the image processing system identifies the shape, size and lines of the areca nuts, compares the shape, size and lines with the model, eliminates the areca nuts which accord with the characteristics of the model by using a grading mechanism, continuously conveys the non-conforming areca nuts to the next grade, and repeats the step D; the PLC controls the grading mechanism to discharge betel nuts of different grades from the set road junction. The utility model discloses an active rotatory row material and rotatory flash, active rotatory cup wheel is 360 degrees rotations in sesame oil or red date, can not harm to carry out the grade to sesame oil or red date shape size and line; the grading device can remove the betel nuts or the red dates at a high speed, and the outlet grade can be set at will.

The device disclosed in this patent, and other similar devices, suffers from the following drawbacks:

firstly, existing equipment forces the carrier rotation through the brush at the fixed one row of brush in fruit carrier assembly line below, but in the in-service use process, the brush is usually because of containing acid-base, the dust, under the high temperature environment, the hair on the brush can wear and tear, and is crooked, and the brush just can not contact the carrier after a period, and the brush is no longer rotatory, will directly lead to the sesame oil seed can not rotate, and the arrangement of the neat law of sesame oil seed on the assembly line can not realize carrying out 360 degrees shootings to the sesame oil seed surface. In addition, the prior art still has the pay-off less, no-load utensil pay-off, and the inefficiency output scheduling problem.

Secondly, on the existing betel nut conveying line, in order to treat dust on the betel nuts, the areca nuts generally roll mutually through a roller brush, the flower bases, branches, leaves and the dust of the betel nuts are forcibly rubbed with each other, and the flower bases, the branches and the leaves fall into a collecting box from the gaps of the brush after the dust is rubbed. The device has the following disadvantages:

1. after the betel nuts are mutually rolled and rubbed by the roller brush, the calyx on the original betel nut seeds is forcibly brushed away, and the appearance of the betel nuts is influenced.

2. After the betel nuts are mutually rolled and rubbed by the roller brush, the lines on the surfaces of the betel nut seeds can be damaged, so that the judgment error of a vision system on the lines in the later processing process can be caused.

3. The equipment structure is unreasonable, the cost is high, the efficiency is low, and the customer requirements can not be satisfied.

Thirdly, in the process of sorting the betel nuts, the conventional equipment adopts an LED backlight source to provide illumination for the betel nuts, and then a visual identification system is used for identifying the betel nuts.

The equipment is in the operation, the sesame oil seed on fruit carrier assembly line has a lot of debris (including the sesame oil flower base, branch, leaf, dust etc.), these debris can drop from the gap in the middle of the fruit carrier, partly can drop on high bright LED backlight, it is a long time, pile up these flower base of one deck on the high bright LED backlight, branch, leaf, dust etc. to cover the light source infiltration, cover and lead to visual system unable judgement product size and line characteristic after the light source infiltration, so need clear away the debris of high bright LED backlight, preceding similar equipment need be artifical manual cleanness under the frequent shutdown state, take to wipe high bright LED backlight surface rag.

This approach has the following disadvantages:

1. the equipment structure is complex, the automation degree is not high, and machine components need to be disassembled when the high-brightness LED backlight source is cleaned manually, so that time and labor are wasted;

2. when the high-brightness LED backlight source is cleaned and wiped, the machine needs to be stopped frequently one day, and the production efficiency is low;

3. the shutdown disassembly part has potential safety hazards, and related parts are extremely easy to damage.

Fourthly, in the existing fruit conveying assembly line, the betel nut seeds falling from the feeding elevator fall into the fruit carrier assembly line, and are stacked together disorderly when just falling onto the fruit carrier, and the disordered betel nuts are flattened on the fruit carrier through the flash guide mechanism.

The existing betel nut sorting device adopts an air blowing mechanism, and the defects of the air blowing mechanism are as follows:

1. the structure is fixed, accumulated betel nuts are blown off through air at variable time, and because the betel nuts are fixed at a high height, the betel nuts with large volume can only be blown off, and the betel nuts with small volume cannot be blown off or can not be blown off completely;

2. the compressed air source is directly blown to increase the air supply load of the equipment and increase the power consumption;

3. by adopting the air blowing mode, a great part of areca seeds are all blown away by air, so that empty carriers on the fruit carriers are caused, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient hierarchical screening installation of sesame oil.

The purpose of the utility model is realized through the following ways: an efficient betel nut grading and screening device comprises a conveying mechanism, a visual identification system and a grading mechanism;

the conveying mechanism comprises a lifting machine positioned at the front end of the equipment, a fruit conveying pipeline positioned in the middle of the equipment and a backflow conveying line, one end of the backflow conveying line is positioned below the tail part of the fruit conveying pipeline, and the other end of the backflow conveying line is positioned above the lifting machine;

the fruit conveying assembly line is of a crawler-type structure, is arranged on a rack and is driven by a motor, is built on the basis of two groups of parallel annular chain belts, a steel shaft is movably arranged on each two parallel chains, two ends of each steel shaft are respectively fixed with a drum-shaped roller, a gear is respectively fixed on the steel shaft between the chains and the rollers, and a square guide rail below the gear is provided with a rack meshed with the gear;

a dust removal mechanism, a flash guide mechanism, a visual identification system, a grading mechanism and a heating mechanism are sequentially arranged on the fruit conveying production line from the feeding end to the tail end;

the dust removal mechanism is characterized in that a vortex fan is fixed on a rack above a feeding end of a fruit conveying production line, an air outlet of the vortex fan is communicated with a dust blowing box through an air pipe, an upper opening of the dust blowing box is communicated with a blanking port of a feeding elevator, a discharge port at the bottom of the dust blowing box is arranged right above a working area of the fruit conveying production line, a baffle plate is obliquely arranged in the dust blowing box, a blanking pipe is arranged at the bottom of the dust blowing box downwards at the other side of the baffle plate, and a collection box is arranged below the blanking pipe;

the mechanism comprises at least two groups of flash guide mechanisms, wherein the flash guide mechanisms are arranged above a fruit conveying production line at intervals along the operation direction, at least two mounting frames are transversely arranged above the fruit conveying production line, a fixed block is fixedly arranged on each mounting frame, a sliding groove is formed in the lower part of each fixed block, an upper adjusting block and a lower adjusting block are movably arranged in the sliding grooves in the lower parts of the fixed blocks through adjusting screws, a brush is fixed on the lower parts of the upper adjusting block and the lower adjusting block, and the included angle between the brush and the operation direction of the fruit conveying production line is;

the visual identification system comprises a lighting device, wherein at least one LED light source is fixed between an upper layer of chain belt and a lower layer of chain belt of a fruit conveying production line through a mounting rack, one end of the LED light source is provided with an air blowing row, one side of the air blowing row, facing the LED light source, is provided with a plurality of air injection holes, and the other end of the LED light source is provided with an ash receiving hopper;

the heating mechanism is positioned below the tail end of the fruit conveying production line, an air blower is installed at one end of a heating box with an internal heating wire, and the other end of the heating box is connected with a hot air port arranged below the tail end of the fruit conveying production line through a hot air pipe.

As a further optimization of the patent, the blowing exhaust is externally connected with a compressed air source through an air pipe.

As a further optimization of the patent, the air blowing row is divided into two rows of air blowing holes, one row of air blowing holes is located above the LED light source, and the other row of air blowing holes is located on one side of the LED light source.

As the further optimization of this patent, the trachea of blowing row on install the solenoid valve, this solenoid valve is controlled by PLC, PLC connects the camera of installing in fruit conveying assembly line top.

As the further optimization of this patent, the brush of two sets of adjacent fruit conveying assembly lines, its top installation is the splayed and distributes.

As the further optimization of this patent, the chain both ends of fruit conveying assembly line are installed respectively on driving gear and driven gear, and driving gear and driven gear are installed respectively on the bearing frame, and the driving gear is fixed in on the main drive axle to by driving motor through the operation of speed reducer drive.

As a further optimization of the patent, the square guide rail is positioned below the chain between the driving gear and the driven gear.

As a further optimization of the patent, a gasket is arranged between two parallel chains in each row.

As a further optimization of the patent, the diameter of the outer end of the roller is larger than that of the other end of the roller.

As the further optimization of this patent, striker plate horizontal angle be 40 angles, highly be 140 mm.

The utility model relates to a high-efficient classified screening equipment of sesame oil, compare with prior art, have following advantage:

firstly, a fruit carrier assembly line adopting a brand-new design has the following characteristics:

1. the structure is novel, and the carrier can be ensured to always rotate at a uniform speed;

2. the structure is reasonable, the failure rate can be effectively reduced, and the working efficiency is improved;

3. the realization of accurate 360-degree rotation of the areca nuts is ensured, and the detection qualification rate of a vision system is improved.

Secondly, a dust removal device is added, and the dust removal device has the following characteristics:

1. the equipment structure is more reasonable, and the price cost is low.

2. The automatic control system completely replaces manual work, has high automation degree, and is convenient and easy to use.

3. The areca seeds, flower bases, branches, leaves and dust can be quickly and cleanly separated by the wind power blowing brush, and the original calyx on the areca seeds can not be damaged.

4. The surface lines of the areca seeds can not be damaged.

Thirdly, an LED backlight cleaning device is added, and the LED backlight cleaning device has the following characteristics:

1. the equipment structure is more reasonable, and the price cost is low;

2. the manual work is completely replaced, the automation degree is high, and the use is convenient and easy;

3. when the vision system automatically detects that the backlight source has sundries, the automatic cleaning mechanism for the high-brightness LED backlight source can timely blow air for cleaning, so that time and labor are saved;

4. the automatic cleaning mechanism for the high-brightness LED backlight source can clean betel nut seeds, flower bases, branches, leaves, dust and the like in a funnel and recycle the betel nut seeds, the flower bases, the branches, the leaves, the dust and the like;

5. the automatic cleaning mechanism for the high-brightness LED backlight source does not need manual intervention, and has no potential safety hazard;

6. the production efficiency is improved by times, the machine does not need to be stopped, and the machine can be automatically cleaned in the production process.

Fourthly, a flash guide mechanism is newly designed, 4 groups of special flexible brushes are adopted, the flash guide mechanism is set in a first-stage and a second-stage mode, the appropriate height for accumulating areca nuts is set, when the areca nuts pass below the special brushes, more than 2 accumulated areca nuts can block overflowing, when part of the areca nuts passing through the first-stage flash mechanism do not overflow, all the areca nuts which do not overflow can be blocked into a no-load tool after passing through the second-stage flash mechanism, so that each carrier is loaded with areca nuts, idle running of the carrier is reduced, and production efficiency is improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the middle dust removing mechanism of the present invention;

FIG. 3 is a schematic view of a three-dimensional structure of a fruit conveying line in use;

FIG. 4 is a schematic view of a side view of the fruit conveying line of the present invention in a use state;

FIG. 5 is a schematic view of a top view of the fruit conveying line of the present invention;

FIG. 6 is a schematic view of the explosion structure of the fruit conveying line of the present invention;

FIG. 7 is a schematic view of a three-dimensional structure of a fruit conveying line of the present invention;

FIG. 8 is a schematic view of a fruit conveying line according to the present invention;

FIG. 9 is a schematic view of the structure of the middle roller of the present invention;

FIG. 10 is a schematic view of the whole structure of the blowing mechanism of the utility model;

FIG. 11 is a second schematic view of the whole structure of the blowing mechanism of the utility model;

FIG. 12 is a schematic view of a partial structure of the blowing mechanism of the utility model;

FIG. 13 is a second schematic view of a partial structure of the blowing mechanism of the utility model;

FIG. 14 is a third schematic view of a partial structure of the blowing mechanism of the utility model;

FIG. 15 is a block diagram of an electric control part of the blowing mechanism of the utility model;

FIG. 16 is a perspective view of the overflow guiding mechanism of the utility model;

FIG. 17 is a schematic top view of the installation of the flash guide mechanism of the present invention;

FIG. 18 is a schematic structural view of a middle flash guide mechanism of the utility model;

fig. 19 is a schematic structural view of a middle heating mechanism of the utility model.

Detailed Description

As shown in fig. 1, the utility model relates to a high-efficient screening installation that grades of sesame oil, it includes conveying mechanism, visual identification system 115, hierarchical mechanism 119, and wherein visual identification system, hierarchical mechanism are prior art, and its structure and theory of operation are at the publication number: CN 108515027A;

the conveying mechanism comprises a lifting machine 111 positioned at the front end of the equipment, a fruit conveying pipeline 114 positioned in the middle of the equipment, and a backflow conveying line, one end of the backflow conveying line is positioned below the tail part of the fruit conveying pipeline 114, and the other end of the backflow conveying line is positioned above the lifting machine 111;

as shown in fig. 3-9, the fruit conveying line 114 is of a crawler-type structure, and is mounted on a rack and driven by a motor, the fruit conveying line 114 is built on two groups of parallel endless chain belts, a steel shaft 612 is movably mounted on each row of two parallel chains 611, a drum-shaped roller 615 is respectively fixed at two ends of the steel shaft 612, a gear 614 is respectively fixed on the steel shaft 612 between the chains 611 and the roller 615, and a rack 616 engaged with the gear is arranged on a square guide rail 617 below the gear 614; two ends of a chain 611 of the fruit conveying pipeline 114 are respectively mounted on a driving gear 608 and a driven gear 606, the driving gear 608 and the driven gear 606 are respectively mounted on a bearing block 607, the driving gear 608 is fixed on the main driving shaft 602, and is driven by a driving motor 605 through a speed reducer 604 to operate. The square track 617 is located below the chain 611 between the driving gear 608 and the driven gear 606. A spacer 613 is installed between the two parallel chains 611 in each row. The diameter of the outer end of the roller 615 is larger than that of the other end.

A dust removal mechanism 112, a flash guide mechanism 113, a visual identification system 115, a grading mechanism 119 and a heating mechanism 118 are sequentially arranged on the fruit conveying production line 114 from the feeding end to the tail end;

as shown in fig. 2, the dust removing mechanism 112 is characterized in that a vortex fan 302 is fixed on a rack above a feeding end of a fruit conveying line 114, an air outlet of the vortex fan 302 is communicated with a dust blowing box 307 through an air pipe 313, an upper opening of the dust blowing box 307 is communicated with a blanking port 308 of a feeding elevator 301, a discharge port 312 at the bottom of the dust blowing box 307 is arranged right above a working area of the fruit conveying line 114, a material baffle 309 is obliquely arranged in the dust blowing box 307, a blanking pipe 310 is arranged at the bottom of the dust blowing box 307 and is positioned at the other side of the material baffle 309 and downwards, and a collecting box 305 is arranged below the blanking pipe 310; the horizontal included angle of the material baffle plate 309 is 40 degrees, and the height is 140 mm. The betel nut is conveyed to a certain height by the baffle conveying line by the feeding hoister, the betel nut falls freely, wind power blown by the vortex fan is blown away by the betel nuts of the air pipes when the betel nut falls down, and then the betel nuts are isolated from the baffle plate by the betel nuts.

As shown in fig. 16-18, the flash guide mechanism 113 is divided into at least two groups, which are installed above the fruit conveying line 114 at intervals along the operation direction, and at least two mounting frames 202 are transversely installed above the fruit conveying line 114, a fixed block 203 is fixedly installed on the mounting frames 202, a chute 204 is opened at the lower part of the fixed block 203, an up-down adjusting block 205 is movably installed in the chute 204 at the lower part of the fixed block 203 through an adjusting screw 206, a brush 207 is fixed at the lower part of the up-down adjusting block 205, and the included angle between the brush 207 and the operation direction of the fruit conveying line 114 is 45 degrees; the brushes 207 arranged above the two adjacent groups of fruit conveying pipelines 114 are distributed in a splayed shape. When the device works, when the areca seeds falling from the feeding elevator fall into the fruit carrier production line and just fall into the fruit carrier, the areca seeds are stacked together in a mess manner, when the messy areca seeds pass through the primary flash guide mechanism, at least half of the areca seeds are flattened on the fruit carrier, no areca empty fruit cup exists on part of the fruit carrier, and the areca seeds which are not flattened continue to the next procedure. When the unflattened areca seeds pass through the second-stage flash guide mechanism, the unflattened areca seeds are arranged orderly one by one and flow away along the production line, and the fruit carrier production line is full of areca seeds and has no empty carrier.

As shown in fig. 10-15, the visual recognition system 115 includes an illumination device, at least one LED light source 401 is fixed between the upper and lower layers of the chain belts of the fruit conveying line 114 through a mounting rack, an air blowing row 404 is installed at one end of the LED light source 401, a plurality of air injection holes 403 are formed in one side of the air blowing row 404 facing the LED light source 401, and an ash receiving hopper 405 is installed at the other end of the LED light source 401; the blowing row 404 is externally connected with a compressed air source through an air pipe 406. The air blowing rows 404 are provided with two rows of air blowing holes 403, one row is located above the LED light sources 401, and the other row is located on one side of the LED light sources 401. An electromagnetic valve 409 is installed on an air pipe 406 of the air blowing row 404, the electromagnetic valve 409 is controlled by a PLC408, and the PLC408 is connected with a camera 407 installed above the fruit conveying pipeline 114. The air pipe of the blowing exhaust is provided with an electromagnetic valve, the electromagnetic valve is controlled by a PLC, and the PLC is connected with a camera arranged above the fruit conveying production line. After a vision system (camera) operates for a period of time, the LED light source is detected to be stained with pedicels or insufficient brightness (the surface is stained with a layer of dust), a PLC centralized controller gives a cleaning instruction to an electromagnetic valve of an executing mechanism, the electromagnetic valve is opened to blow an exhaust row, air injection holes in the exhaust row are arranged to form an air curtain, the surface of the LED light source is automatically cleaned and blown, pedicels/dust blown out by the exhaust row falls into a dust receiving hopper, the pedicels are prevented from falling into a chain on a lower-layer fruit carrier to clamp a chain wheel chain, and meanwhile, the automatic cleaning effect is achieved.

As shown in FIG. 19, the heating mechanism 118 is located below the tail end of the fruit conveying line 114, and is provided with a blower 502 at one end of a heating box 501 with a built-in electric heating wire, and the other end of the heating box 501 is connected with a hot air port 504 arranged below the tail end of the fruit conveying line 114 through a hot air pipe 503. When the weather humidity is high, water mist is easily accumulated on the surface of the fruit conveying production line, betel nut dust is easily stained on the surface of the carrier after the water mist is accumulated, judgment errors of a visual system are caused after a layer of betel nut dust is accumulated, and the identification accuracy is not high. In order to solve the problem, an environment temperature and humidity sensor is additionally arranged on the device, when the air reaches a certain humidity, the humidity sensor automatically starts a heating system when detecting, the heating system heats through a set temperature, a heat source passes through a main pipeline and a sub-pipeline, and finally hot air is blown to the surface of the fruit conveying production line through an air outlet, so that the surface of a fruit carrier is kept dry and clean.

The utility model relates to a high-efficient hierarchical screening installation work process of sesame oil as follows: the areca nuts are lifted to a high place by a lifter and fall down, dust is removed by a dust removal device in the falling process, the areca nuts after dust removal fall onto a fruit conveying production line, the fruit conveying production line runs a driving gear by a driving motor through a speed reducer, the driving gear drives a chain to rotate, the roller and the whole fruit conveying assembly line are driven to rotate, when areca nuts fall on the roller, the areca nuts fall between the roller and the roller along with the rotation of the roller, and the areca nuts are automatically dispersed and distributed between the roller and the roller after a period of rotary conveying, so that complete tiling is finally realized, and a vision system can conveniently take pictures; the vision system is positioned above the fruit carrier of the equipment main line, when the betel nut seeds pass through the industrial camera, the industrial camera automatically and continuously shoots the appearance, size and lines of the betel nut seeds; and (4) performing data analysis operation on the shot result, and giving an instruction grading mechanism to execute the grading work of the betel nut seeds. When the vision system measures and compares the appearance size and the lines of the betel nut seeds and the comparison result is consistent with the grade set by a user, the system sends an instruction to the high-speed electromagnetic valve to blow the betel nuts onto the discharging conveying line through the air blowing nozzles (total 14 grade outlets), and if the betel nuts are not consistent, the betel nuts flow back into the elevator through the return line. The above steps are repeated.

Claims (10)

1. The utility model provides a high-efficient hierarchical screening installation of sesame oil, it includes conveying mechanism, vision recognition system (115), grader (119), its characterized in that:

the conveying mechanism comprises a lifting machine (111) positioned at the front end of the equipment, a fruit conveying pipeline (114) positioned in the middle of the equipment and a backflow conveying line, one end of the backflow conveying line is positioned below the tail part of the fruit conveying pipeline (114), and the other end of the backflow conveying line is positioned above the lifting machine (111);

the fruit conveying assembly line (114) is of a crawler-type structure, is mounted on a rack and is driven by a motor, the fruit conveying assembly line (114) is built on the basis of two groups of parallel annular chain belts, a steel shaft (612) is movably mounted on each row of two parallel chains (611), two ends of the steel shaft (612) are respectively fixed with a drum-shaped roller (615), a gear (614) is respectively fixed on the steel shaft (612) between the chains (611) and the roller (615), and a square guide rail (617) below the gear (614) is provided with a rack (616) meshed with the gear;

a dust removal mechanism (112), a flash guide mechanism (113), a visual identification system (115), a grading mechanism (119) and a heating mechanism (118) are sequentially arranged on the fruit conveying production line (114) from the feeding end to the tail end;

the dedusting mechanism (112) is characterized in that a vortex fan (302) is fixed on a rack above a feeding end of a fruit conveying production line (114), an air outlet of the vortex fan (302) is communicated with a dust blowing box (307) through an air pipe (313), an upper opening of the dust blowing box (307) is communicated with a blanking port (308) of a feeding elevator (301), a discharge port (312) at the bottom of the dust blowing box (307) is arranged right above a working area of the fruit conveying production line (114), a material baffle plate (309) is obliquely arranged in the dust blowing box (307), a blanking pipe (310) is arranged on the bottom of the dust blowing box (307) and is located on the other side of the material baffle plate (309), and a collecting box (305) is arranged below the blanking pipe (310);

the overflow guiding mechanism (113) is divided into at least two groups which are arranged above the fruit conveying production line (114) at intervals along the operation direction, at least two mounting frames (202) are transversely arranged above the fruit conveying production line (114), a fixed block (203) is fixedly arranged on each mounting frame (202), a sliding groove (204) is formed in the lower part of each fixed block (203), an upper adjusting block (205) and a lower adjusting block (205) are movably arranged in the sliding groove (204) in the lower part of each fixed block (203) through an adjusting screw (206), a brush (207) is fixed on the lower part of each upper adjusting block (205) and the lower adjusting block (205), and the included angle between each brush (207) and the operation direction of the fruit conveying production line;

the visual recognition system (115) comprises a lighting device, wherein at least one LED light source (401) is fixed between an upper layer of chain belt and a lower layer of chain belt of a fruit conveying production line (114) through a mounting rack, an air blowing row (404) is installed at one end of the LED light source (401), a plurality of air injection holes (403) are formed in one side, facing the LED light source (401), of the air blowing row (404), and a dust receiving hopper (405) is arranged at the other end of the LED light source (401);

the heating mechanism (118) is positioned below the tail end of the fruit conveying production line (114), and is characterized in that an air blower (502) is installed at one end of a heating box (501) with an internal heating wire, and the other end of the heating box (501) is connected with a hot air port (504) arranged below the tail end of the fruit conveying production line (114) through a hot air pipe (503).

2. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the blowing row (404) is externally connected with a compressed air source through an air pipe (406).

3. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the air blowing row (404) is provided with two rows of air injection holes (403), one row is positioned above the LED light source (401), and the other row is positioned on one side of the LED light source (401).

4. The efficient betel nut grading and screening device as claimed in claim 1 or 2, wherein: an electromagnetic valve (409) is installed on an air pipe (406) of the blowing exhaust row (404), the electromagnetic valve (409) is controlled by a PLC (408), and the PLC (408) is connected with a camera (407) installed above the fruit conveying production line (114).

5. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the brush (207) arranged above the two adjacent groups of fruit conveying pipelines (114) are distributed in a splayed shape.

6. The efficient betel nut grading and screening device as claimed in claim 1 or 5, wherein: two ends of a chain (611) of the fruit conveying production line (114) are respectively arranged on a driving gear (608) and a driven gear (606), the driving gear (608) and the driven gear (606) are respectively arranged on a bearing block (607), and the driving gear (608) is fixed on a main driving shaft (602) and driven to operate by a driving motor (605) through a speed reducer (604).

7. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the square guide rail (617) is positioned below the chain (611) between the driving gear (608) and the driven gear (606).

8. The efficient betel nut grading and screening device as claimed in claim 1, wherein: and a gasket (613) is arranged between two parallel chains (611) in each row.

9. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the diameter of one end of the roller (615) close to the outside is larger than that of the other end.

10. The efficient betel nut grading and screening device as claimed in claim 1, wherein: the horizontal included angle of the material baffle plate (309) is 40 degrees, and the height is 140 mm.

Images