CN216728210U - A sieving mechanism for litchi - Google Patents

Abstract

The utility model discloses a screening device for litchis, which comprises a frame, wherein a feed inlet is formed in the top of the frame, a plurality of sieve beds distributed in a stepped manner are arranged below the feed inlet, the sieve beds are connected to the frame in a sliding manner, a T-shaped rod is arranged below the sieve beds, racks are arranged on the surfaces, opposite to the sieve beds, of the T-shaped rod, two gears are meshed between the two racks, the circle center of each gear is rotatably connected with the end part of a first connecting rod, a first limiting sleeve is rotatably arranged on the first connecting rod, a servo motor is fixed on the frame, the servo motor is provided with one end of a second connecting rod, a second limiting sleeve is rotatably arranged at the other end of the second connecting rod, a third connecting rod is movably arranged in the first limiting sleeve and the second limiting sleeve, and the bottom end of the third connecting rod is rotatably connected below the T-shaped rod, the litchi screening device is simple in structure, can carry out multistage screening on litchi, and improves screening efficiency.

Description

A sieving mechanism for litchi

Technical Field

The utility model relates to the technical field of litchi processing, in particular to a litchi screening device.

Background

The litchi is generally required to be screened before litchi processing, then a screening device is required to be used, the screening hole of the screening device in the prior art is fixed in size, only litchi of one size can be screened, different screening devices are required to be replaced when litchi of different sizes are required to be screened, the cost is high, and the litchi needs to be carried to screening devices of different specifications when screening of different grades is required, so that time and labor are wasted, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a screening device for litchi, which is used for solving the problems in the background art.

The embodiment of the application discloses: a screening device for litchi comprises a frame, wherein a feed inlet is connected to the top of the frame, a plurality of sieve beds distributed in a step shape are connected below the feed inlet, a plurality of sieve pores are uniformly distributed on the sieve beds, the pore diameters of the sieve pores of the sieve beds are sequentially increased from top to bottom, two sides of the sieve beds are connected to the frame in a sliding mode through inclined sliding rails, each sieve bed is connected with a driving mechanism, each driving mechanism comprises a T-shaped rod connected to the frame, the T-shaped rods are located below the sliding rails, the horizontal parts of the T-shaped rods are parallel to the sliding rails, racks are arranged on the opposite surfaces of the horizontal parts of the T-shaped rods and the sieve beds, two gears are connected between the two racks in a meshed mode, the circle centers of the two gears are respectively and rotatably connected with two ends of a first connecting rod, and the middle position of the first connecting rod is rotatably connected with a first limiting sleeve through a pin shaft, the T-shaped rod vertical part conveying device is characterized in that a servo motor is fixed on the rack, the output end of the servo motor can rotatably penetrate through the bottom end of the T-shaped rod vertical part and is connected with one end of a second connecting rod, the other end of the second connecting rod is rotatably connected with a second limiting sleeve through a pin shaft, a third connecting rod is slidably connected in the first limiting sleeve and the second limiting sleeve, the bottom end of the third connecting rod is rotatably connected under the T-shaped rod vertical part through a pin shaft, the lower end face of the sieve bed is connected with a blanking hopper, and a collecting box is arranged below the blanking hopper.

Preferably, there is the baffle that matches through slide rail sliding connection in the bottom of feed inlet, the one end of baffle is connected with the one end of horizontal pole, the other end of horizontal pole is connected with the intermediate position of montant, be equipped with the logical groove along its length direction on the montant, rotatable coupling has the carousel in the frame, the carousel passes through the servo motor drive, the eccentric position of carousel is equipped with the lug, lug sliding connection be in lead to the inslot.

Preferably, a rolling bearing is connected to the projection.

Preferably, the outlet of the discharging hopper is connected with a material guiding cloth bag extending into the collecting box.

Preferably, the periphery of the sieve bed is connected with side plates, the tail of the sieve bed is provided with a discharge hole, and the upper end surface of the sieve bed is provided with two splayed guide plates.

The utility model has the following beneficial effects: the litchi that will treat the screening by the feed inlet falls to on the sieve bed, servo motor drive the second connecting rod is rotatory, the second connecting rod passes through the pulling of second stop collar the reciprocal rotatory swing of third connecting rod, the third connecting rod passes through first stop collar promotes the first connecting rod is removed about, first connecting rod passes through the gear with rack drive the sieve bed is followed the slide rail horizontal slip, and then to falling into litchi in the sieve bed screens, and small-size litchi passes the sieve mesh falls into in the collecting box, and large-size litchi continues to screen along current sieve bed landing to next sieve bed to realize the multistage screening of litchi, improve screening efficiency.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a partial structure schematic diagram of a screening device for litchi.

Fig. 2 is a schematic diagram of a sieve bed configuration.

Fig. 3 is a schematic view of the driving mechanism.

Reference numerals of the above figures: 1. a frame; 2. a feed inlet; 3. a sieve bed; 4. a T-shaped rod; 5. a rack; 6. a gear; 7. A first link; 8. a first stop collar; 9. a second link; 10. a second stop collar; 11. a third link; 12. feeding a hopper; 13. a collection box; 14. a baffle plate; 15. a cross bar; 16. a vertical rod; 17. a through groove; 18. a turntable; 19. and (6) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, a litchi screening device comprises a frame 1, wherein a feed inlet 2 is connected to the top of the frame 1, a plurality of sieve beds 3 distributed in a step shape are connected to the lower portion of the feed inlet 2, a plurality of sieve holes are uniformly distributed on the sieve beds 3, the diameters of the sieve holes of the sieve beds 3 are sequentially increased from top to bottom, so that the litchi is screened in a multistage manner from small to large, two sides of each sieve bed 3 are slidably connected to the frame 1 through oblique slide rails, each sieve bed 3 is connected with a driving mechanism, the driving mechanism comprises a T-shaped rod 4 connected to the frame 1, the T-shaped rod 4 is located below the slide rails, the horizontal portion of the T-shaped rod 4 is parallel to the slide rails, racks 5 are arranged on the surfaces of the horizontal portion of the T-shaped rod 4 opposite to the sieve beds 3, two gears 6 are engaged and connected between the two racks 5, the centers of the two gears 6 are respectively rotatably connected with two ends of a first connecting rod 7, the middle position of the first connecting rod 7 is rotatably connected with a first limiting sleeve 8 through a pin shaft, a servo motor is fixed on the rack, the output end of the servo motor rotatably penetrates through the bottom end of the vertical part of the T-shaped rod 4 and is connected with one end of a second connecting rod 9, the other end of the second connecting rod 9 is rotatably connected with a second limiting sleeve 10 through a pin shaft, a third connecting rod 11 is slidably connected in the first limiting sleeve 8 and the second limiting sleeve 10, the bottom end of the third connecting rod 11 is rotatably connected under the vertical part of the T-shaped rod 4 through a pin shaft, the lower end surface of the sieve bed 3 is connected with a blanking hopper 12, a collecting box 13 is arranged below the blanking hopper 12, and litchis to be screened are poured onto the sieve bed 3 from the feeding port 2, the servo motor drives the second connecting rod 9 is rotatory, the second connecting rod 9 passes through the pulling of second stop collar 10 the reciprocal rotatory swing of third connecting rod 11, third connecting rod 11 passes through first stop collar 8 promotes about first connecting rod 7, first connecting rod 7 passes through gear 6 with the drive of rack 5 sieve bed 3 is followed the slide rail horizontal slip, and then to falling into the litchi in the sieve bed 3 screens, and small-size litchi passes the sieve mesh falls into in the collecting box 13, and large-size litchi continues to screen along current sieve bed 3 landing to next sieve bed 3 to the realization is to the multistage screening of litchi.

The bottom of feed inlet 2 has baffle 14 that matches with it through slide rail sliding connection, the one end of baffle 14 is connected with the one end of horizontal pole 15, the other end of horizontal pole 15 is connected with montant 16's intermediate position, be equipped with on the montant 16 along its length direction's logical groove 17, rotatable coupling has carousel 18 in the frame 1, carousel 18 passes through servo motor drive, the eccentric position of carousel 18 is equipped with lug 19, lug 19 sliding connection be in lead to the inslot 17, servo motor drive carousel 18 is rotatory, carousel 18 passes through lug 19 with lead to the groove 17 drive montant 16 drives horizontal pole 15 with baffle 14 is along horizontal direction reciprocating sliding, and then realizes the intermittent type nature of feed inlet 2 opens and shuts, avoids a unloading too much, influences the screening effect.

The lug 19 is connected with a rolling bearing, so that the friction between the lug 19 and the inner wall of the through groove 17 can be reduced, and the service life of the device is prolonged.

The outlet of the blanking hopper 12 is connected with a material guiding cloth bag extending into the collecting box 13, so that the litchis are prevented from directly falling into the collecting box 13 and being broken by smashing.

The utility model discloses a litchi sieve bed, sieve bed 3, be connected with the curb plate all around, prevent that the litchi from dropping at the screening process, the afterbody of sieve bed 3 is equipped with the discharge gate, the up end of sieve bed 3 is equipped with two deflector that become the splayed, is convenient for concentrate the litchi that does not pass through sieve bed 3 and falls into on next sieve bed 3.

The embodiment of the application has the following beneficial effects: the litchi that will treat the screening by feed inlet 2 falls to on the sieve bed 3, servo motor drive second connecting rod 9 is rotatory, second connecting rod 9 passes through the pulling of second stop collar 10 third connecting rod 11 reciprocating rotation swing, third connecting rod 11 passes through first stop collar 8 promotes about first connecting rod 7 moves, first connecting rod 7 passes through gear 6 with rack 5 drive sieve bed 3 is followed the slide rail horizontal slip, and then to falling into the litchi in the sieve bed 3 screens, and small-size litchi passes the sieve mesh falls into in the collecting box 13, large-size litchi continues to screen along current sieve bed 3 landing to next sieve bed 3 to realize the multistage screening to the litchi, improve screening efficiency.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (5)

1. The utility model provides a sieving mechanism for litchi which characterized in that: the sieve bed is characterized by comprising a frame, wherein a feed inlet is connected to the top of the frame, a plurality of sieve beds distributed in a step shape are connected below the feed inlet, a plurality of sieve holes are uniformly distributed on each sieve bed, the pore diameters of the sieve holes of the sieve beds are sequentially increased from top to bottom, two sides of each sieve bed are slidably connected to the frame through oblique slide rails, each sieve bed is connected with a driving mechanism, each driving mechanism comprises a T-shaped rod connected to the frame, the T-shaped rods are positioned below the slide rails, the horizontal parts of the T-shaped rods are parallel to the slide rails, one surface of the horizontal parts of the T-shaped rods, which is opposite to the sieve beds, is provided with a rack, two gears are meshed and connected between the two racks, the circle centers of the two gears are respectively and rotatably connected with two ends of a first connecting rod, and the middle position of the first connecting rod is rotatably connected with a first limiting sleeve through a pin shaft, the T-shaped rod vertical part conveying device is characterized in that a servo motor is fixed on the rack, the output end of the servo motor can rotatably penetrate through the bottom end of the T-shaped rod vertical part and is connected with one end of a second connecting rod, the other end of the second connecting rod is rotatably connected with a second limiting sleeve through a pin shaft, a third connecting rod is slidably connected in the first limiting sleeve and the second limiting sleeve, the bottom end of the third connecting rod is rotatably connected under the T-shaped rod vertical part through a pin shaft, the lower end face of the sieve bed is connected with a blanking hopper, and a collecting box is arranged below the blanking hopper.

2. The screening device for litchi chinensis claimed in claim 1, wherein: the bottom of feed inlet has the baffle that matches with it through slide rail sliding connection, the one end of baffle is connected with the one end of horizontal pole, the other end of horizontal pole is connected with the intermediate position of montant, be equipped with the logical groove along its length direction on the montant, rotatable coupling has the carousel in the frame, the carousel passes through the servo motor drive, the eccentric position of carousel is equipped with the lug, lug sliding connection be in logical inslot.

3. The screening device for litchi fruits according to claim 2, wherein: the convex block is connected with a rolling bearing.

4. The screening device for litchi chinensis claimed in claim 1, wherein: the outlet of the discharging hopper is connected with a material guiding cloth bag extending into the collecting box.

5. The screening device for litchi chinensis claimed in claim 1, wherein: the sieve bed is connected with the curb plate all around, the afterbody of sieve bed is equipped with the discharge gate, the up end of sieve bed is equipped with two deflector that become the splayed.

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