Litchi screening device

Abstract

The utility model provides a litchi screening device which comprises a screening box, a discharging hopper is arranged at the bottom of the screening box, a feeding hopper is arranged at the top of the screening box, a plurality of screening assemblies distributed alternately are connected to the lower portion of the feeding hopper, a material guiding assembly is arranged between every two screening assemblies, and each screening assembly comprises a screening cylinder. The screening box is provided with a screening barrel, screening holes are formed in the screening barrel, rotating bearings are arranged at the two ends of the screening barrel, fixing pieces are arranged on the rotating bearings, screening motors are arranged on the fixing pieces, a material guide groove is formed in the bottom of each fixing piece, and a discharging pipe penetrating through the screening box is arranged at the discharging end of the screening barrel. According to the litchi screening device, by arranging the multiple screening cylinders with the screening holes with the gradually-decreased hole diameters and the screening motor, automatic, efficient and precise screening of litchis is achieved, the screening efficiency and precision are improved, the labor cost and the labor intensity are reduced, damage to the litchis in the screening process can be effectively avoided, and the product quality of the litchis is improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to litchi processing technical field, and specifically is a litchi screening device. BACKGROUND

[0002] Litchi is a evergreen tree of the family Anacardiaceae, about 10 meters high. The fruit skin has scale-like protrusions, bright red, purple red. When mature, it is bright red; the seed is entirely wrapped by the fleshy false seed coat. The flowering period is in spring, and the fruiting period is in summer. The flesh is translucent and has a beautiful appearance when fresh, with a sweet and delicious taste, but it is not resistant to storage. After picking, litchi often needs to be screened according to size before processing, packaging or selling to meet different market demands and production requirements.

[0003] The traditional litchi screening method is mostly manual screening, which is low in efficiency, high in labor intensity, and difficult to guarantee the screening accuracy, and is prone to misjudgment and screening omission. With the continuous development of litchi industry, there is an urgent need for an efficient and accurate litchi screening device. UTILITY MODEL CONTENT

[0004] In order to solve the problems of the prior art, the utility model provides a litchi screening device in combination with the prior art from the practical application.

[0005] The technical scheme of the utility model is as follows:

[0006] A litchi screening device, comprising a screening box, a discharge hopper is arranged at the bottom of the screening box, an inlet hopper is arranged at the top of the screening box, a plurality of groups of screening assemblies are connected below the inlet hopper and are alternately distributed, a guide assembly is arranged between each group of screening assemblies, the screening assembly comprises a screening cylinder, a screening hole is arranged on the screening cylinder, rotating bearings are arranged at both ends of the screening cylinder, a fixing piece is arranged on the rotating bearings, a screening motor is arranged on the fixing piece, a guide groove is arranged at the bottom of the fixing piece, and a discharge pipe penetrating through the screening box is arranged at the discharge end of the screening cylinder.

[0007] Further, the guide assembly comprises a guide hopper, and the guide hopper is provided with a guide pipe at the bottom.

[0008] Further, the guide hopper is arranged below the outlet of the guide groove, and the outlet of the guide pipe is arranged in the screening cylinder.

[0009] Further, the screening cylinder is arranged obliquely, the frame of the screening cylinder is provided with a buffer rubber strip, the screening holes on the screening cylinders in the same group are consistent in size and are equidistantly arranged on the cylinder wall, and the screening holes of the screening cylinders in each group are sequentially reduced from top to bottom.

[0010] Further, a collecting box is arranged below the outlet of the discharge pipe.

[0011] Further, the fixing member is fixed on the screening box, and the discharge pipe is fixed on the fixing member.

[0012] Further, the feeding hopper outlet is arranged in the first group of screening cylinders.

[0013] Further, the lower hopper is arranged below the outlet of the last group of guide grooves.

[0014] Further, the screening motor is connected with the screening cylinder.

[0015] The utility model discloses a beneficial effect:

[0016] The utility model discloses a plurality of screening hole aperture gradually reducing screening cylinder and screening motor are arranged, realize the automation, high efficiency and precision screening of litchi, improve screening efficiency and precision, reduce artificial cost and labor intensity, and can effectively avoid the damage of litchi in the screening process, improve the product quality of litchi. BRIEF DESCRIPTION OF DRAWINGS

[0017] ATTACHED Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] ATTACHED Figure 2 It is the sectional structure schematic diagram of the utility model.

[0019] ATTACHED Figure 3 It is the screening assembly structure schematic diagram of the utility model.

[0020] The mark shown in the drawing: 1, screening box;2, lower hopper;3, feeding hopper;4, screening cylinder;5, screening hole;6, rotating bearing;7, fixing member;8, screening motor;9, guide groove;10, discharge pipe;11, guide hopper;12, guide pipe;13, collection box. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and specific embodiment. It should be understood that these embodiments are only for explaining the utility model and are not for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the application.

[0022] As Figures 1-3 Shown, it is a kind of litchi screening device related structure schematic diagram provided in this embodiment.

[0023] In this embodiment, structure is mainly as Figure 1As shown, including screening box 1, screening box 1 bottom is provided with the lower hopper 2, the lower hopper 2 is arranged below the last group of guide chute 9 outlet, facilitate the collection of the last group of guide chute 9 inside the litchi, screening box 1 top is provided with the feed hopper 3, the feed hopper 3 outlet is arranged in the first group of screening cylinder 4, facilitate litchi into the first group of screening cylinder 4.

[0024] As shown in the figure, Figure 2 The feed hopper 3 is connected with a plurality of groups of screening assembly, each group of screening assembly is provided with a guide assembly, the guide assembly includes a guide hopper 11, the guide hopper 11 bottom is provided with a guide pipe 12, the guide hopper 11 is arranged below the guide chute 9 outlet, the guide pipe 12 outlet is arranged in the screening cylinder 4, facilitate the litchi of the previous level screening into the next level of screening cylinder 4, ensure the automation of screening, avoid litchi scattered.

[0025] As shown in the figure, Figure 3 The screening assembly includes a screening cylinder 4, the screening cylinder 4 is provided with a screening hole 5, the both ends of the screening cylinder 4 is provided with a rotating bearing 6, the rotating bearing 6 is provided with a fixed part 7, the fixed part 7 is fixed on the screening box 1, the fixed part 7 is provided with a screening motor 8, the screening motor 8 is connected with the screening cylinder 4, can be carried out preliminary scattered screening of litchi into the feed hopper 3, avoid litchi accumulation clog the feed hopper 3 outlet, the fixed part 7 bottom is provided with a guide chute 9, the screening cylinder 4 discharge end is provided with a discharge pipe 10 through the screening box 1, the discharge pipe 10 is fixed on the fixed part 7, facilitate the fixed discharge pipe 10 and screening cylinder 4, avoid the discharge pipe 10 and screening cylinder 4 appear in the screening process, influence the screening effect, the outlet of the discharge pipe 10 is provided with a collection box 13 below, facilitate each collection box 13 corresponding to collect a kind of specification of litchi.

[0026] The screening cylinder 4 is inclined to facilitate the litchi slide, the frame of the screening cylinder 4 is provided with a buffer rubber strip, prevent litchi from being damaged in the screening process, the same group of screening cylinder 4 is provided with a screening hole 5, the size of the screening hole 5 is consistent and equal interval respectively on the cylinder wall, the size of the screening hole 5 of each group of screening cylinder 4 is gradually reduced from top to bottom, facilitate screening different size of litchi.

[0027] The working principle of the embodiment is as follows:

[0028] In use, the litchi is poured from the top opening of the feed hopper 3, the screening motor 8 is started to drive the screening cylinder 4 to rotate, the litchi is preliminarily stirred and scattered, the litchi rolls in the screening cylinder 4 under the action of rotation, the smaller litchi falls into the lower guide chute 9 through the screening hole 5 on the screening cylinder 4, enters the next level of screening cylinder 4 through the guide hopper 11 and the guide pipe 12 for further screening, the larger litchi slides along the screening cylinder 4 and the discharge pipe 10 to the corresponding collection box 13. In this way, different sizes of litchi are screened by each layer of screening cylinder 4 in turn and then enter the corresponding collection box 13, completing the screening process of litchi.

Claims

1. A lychee screening device comprising a screening box, characterized in that, The bottom of the screening box is provided with a lower hopper, and the top of the screening box is provided with an inlet hopper, below which a plurality of groups of screening assemblies are connected in an alternating distribution, between each group of screening assemblies is provided with a guide assembly, the screening assembly includes a screening cylinder, the screening cylinder is provided with a screening hole, both ends of the screening cylinder are provided with a rotating bearing, the rotating bearing is provided with a fixing piece, the fixing piece is provided with a screening motor, and the bottom of the fixing piece is provided with a guide groove, and the outlet end of the screening cylinder is provided with an outlet pipe penetrating through the screening box.

2. The lychee screening device according to claim 1, wherein, The guide assembly includes a guide hopper, and the bottom of the guide hopper is provided with a guide pipe.

3. The lychee screening device according to claim 2, wherein, The guide hopper is arranged below the guide groove outlet, and the guide pipe outlet is arranged in the screening cylinder.

4. The lychee screening device according to claim 1, wherein, The screening cylinder is arranged obliquely, the frame of the screening cylinder is provided with a buffer rubber strip, the screening holes on the screening cylinders in the same group are consistent in size and are arranged at equal intervals on the cylinder wall, and the screening holes of each group of screening cylinders are sequentially reduced from top to bottom.

5. The lychee screening device according to claim 1, wherein, The outlet of the outlet pipe is provided below a collecting box.

6. The lychee screening device according to claim 1, wherein, The fixing piece is fixed on the screening box, and the outlet pipe is fixed on the fixing piece.

7. The lychee screening device according to claim 1, wherein, The outlet of the inlet hopper is arranged in the first group of screening cylinders.

8. The lychee screening device according to claim 1, wherein, The lower hopper is arranged below the guide groove outlet of the last group.

9. The lychee screening device according to claim 1, wherein, The screening motor is connected with the screening cylinder.

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