CN220941769U - A grading and screening device for pearl production - Google Patents

Abstract

The utility model discloses a grading screening device for pearl production, which comprises a screening frame, wherein the upper part of the screening frame is connected with a first screen frame in a sliding manner, the lower part of the screening frame is connected with a second screen frame in a sliding manner under the first screen frame, two groups of rollers are rotatably connected to two sides of the inner wall of the screening frame, which is close to one side of the front surface, a movable plate is arranged between the rollers rotatably connected to two sides of the inner wall of the front surface of the screening frame, the two groups of movable plates are welded with the movable frame on one side, which is close to each other, of the front surface of the screening frame, a supporting plate is welded on one side of the front surface of the screening frame, and a driving motor is arranged on the top surface of the supporting plate through bolts. This a hierarchical screening plant for pearl production is through setting up driving motor, removal frame, first reel and second reel etc. because first reel and second reel are the level setting to can avoid when sieving the pearl, prevent that less pearl from discharging along with great pearl.

Description

A grading and screening device for pearl production

Technical Field

The utility model relates to the technical field of pearl production and screening, in particular to a grading and screening device for pearl production.

Background technique

Pearls are milky white or slightly yellow and shiny. They are mineral beads containing calcium carbonate produced by the endocrine function of shellfish. They are composed of a large number of tiny aragonite crystals and are mostly used as ornaments.

After pearls are produced, they are collected. Since pearls are produced in different sizes, they are classified into different sizes. Traditionally, pearls are separated by sieves. However, most sieves are slightly tilted. Therefore, when the pearls are screened, they roll down directly from the upper discharge port. As a result, some smaller pearls may not be screened out, but discharged together with larger pearls. Therefore, they need to be screened again, which is less practical.

Utility Model Content

The purpose of the utility model is to provide a grading and screening device for pearl production in view of the deficiencies of the prior art, so as to solve the problems raised in the background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grading and screening device for pearl production, comprising a screening frame, a first screen frame is slidably connected to the upper part of the screening frame, a second screen frame is slidably connected to the lower part of the screening frame and directly below the first screen frame, two groups of rollers are rotatably connected on both sides of the inner wall of the screening frame close to the front side, movable plates are placed between the rollers rotatably connected on both sides of the inner wall of the front side of the screening frame, movable frames are welded to the sides where the two groups of movable plates are close to each other, a support plate is welded to the front side of the screening frame, and a driving motor is installed on the top surface of the support plate by bolts.

As a preferred technical solution of the utility model, the screening frame is rotatably connected to a rotating shaft on one side of the front side and extends into the screening frame, and a rotating handle is fixedly connected to one end of the rotating shaft located inside the screening frame.

As a preferred technical solution of the utility model, the moving frame is in the shape of an elongated strip and is provided with an elongated through hole, and one end of the rotating handle is located in the elongated through hole provided in the moving frame.

As a preferred technical solution of the utility model, one end of the rotating shaft located outside the screening frame is connected to the output end of the driving motor through a coupling.

As the preferred technical solution of the utility model, multiple groups of sliding rods are installed on the upper and lower parts of the inner walls on both sides of the screening frame that are close to each other, and the upper sliding rods of the screening frame penetrate the side walls of the first screen frame, and the lower sliding rods of the screening frame penetrate the side walls of the second screen frame.

As a preferred technical solution of the utility model, the right side of the first screen frame and the left side of the second screen frame are fixedly installed with discharge plates extending to the outside of the screening frame, two groups of baffles are installed on the top surface of the discharge plates, and the discharge plates are arranged in an inclined shape.

As a preferred technical solution of the utility model, a discharge hopper extending to the lower part of the screening frame is fixedly installed at the bottom of the second screen frame, a through hole is opened at the bottom of the screening frame, and the discharge hopper is located in the through hole and moves.

As a preferred technical solution of the present invention, the mesh of the second screen frame is smaller than that of the first screen frame, and the second screen frame is slightly larger than the first screen frame, and support columns are installed at the four corners of the bottom surface of the screening frame.

Compared with the prior art, the utility model provides a grading and screening device for pearl production, which has the following beneficial effects:

The grading and screening device for pearl production can place pearls to be screened on the first screen frame by arranging a driving motor, a moving frame, a first screen frame and a second screen frame, and then start the driving motor, the output end of which can drive the rotating shaft to rotate, and then drive the rotating handle to rotate, and further drive the moving frame to do reciprocating motion. Since the first screen frame and the second screen frame are both arranged horizontally, it can be avoided that when the pearls are screened, smaller pearls are prevented from being discharged together with larger pearls.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic cross-sectional view of the utility model;

FIG. 3 is a schematic diagram of the side structure of the movable frame of the utility model.

Figure numerals: 1. screening frame; 2. support plate; 3. support column; 4. driving motor; 5. sliding rod; 6. first screen frame; 7. baffle; 8. discharge plate; 9. second screen frame; 10. discharge hopper; 11. moving plate; 12. moving frame; 13. roller; 14. rotating shaft; 15. rotating handle.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 3. In this embodiment: a grading and screening device for pearl production includes a screening frame 1, a first screen frame 6 is slidably connected to the upper part of the screening frame 1, a second screen frame 9 is slidably connected to the lower part of the screening frame 1 and directly below the first screen frame 6, two groups of rollers 13 are rotatably connected on both sides of the inner wall of the screening frame 1 close to the front side, a moving plate 11 is placed between the rollers 13 rotatably connected on both sides of the inner wall of the front side of the screening frame 1, a moving frame 12 is welded to the side where the two groups of moving plates 11 are close to each other, a support plate 2 is welded to the front side of the screening frame 1, and a driving motor 4 is installed on the top surface of the support plate 2 by bolts.

In this embodiment, the screening frame 1 is rotatably connected to a rotating shaft 14 that penetrates and extends into the screening frame 1 at one side of the front surface, and a rotating handle 15 is fixedly connected to one end of the rotating shaft 14 located inside the screening frame 1. The movable frame 12 is in the shape of an elongated strip and is provided with an elongated through hole. One end of the rotating handle 15 is located in the elongated through hole provided in the movable frame 12, and the end of the rotating shaft 14 located outside the screening frame 1 is connected to the output end of the driving motor 4 through a coupling, so that the pearls to be screened can be placed on the first screen frame 6. After that, the driving motor 4 can be started, and its output end can drive the rotating shaft 14 to rotate, thereby driving the rotating handle 15 to rotate, and further driving the movable frame 12 to reciprocate. Multiple groups of sliding rods 5 are installed on the upper and lower parts of the inner walls on both sides of the screening frame 1 that are close to each other, and the upper sliding rod 5 of the screening frame 1 penetrates the side wall of the first screen frame 6, and the lower sliding rod 5 of the screening frame 1 penetrates the side wall of the second screen frame 9. The sliding rod 5 is arranged to facilitate the sliding of the first screen frame 6 and the second screen frame 9.

The right side of the first screen frame 6 and the left side of the second screen frame 9 are fixedly installed with a discharge plate 8 extending to the outside of the screening frame 1, which can facilitate the discharge of larger pearls on the first screen frame 6 and the second screen frame 9. Two sets of baffles 7 are installed on the top surface of the discharge plate 8, which can play a blocking role and prevent the pearls from sliding out from the side of the discharge plate 8, and the discharge plate 8 is arranged in an inclined shape. The bottom of the second screen frame 9 is fixedly installed with a discharge hopper 10 extending to the lower part of the screening frame 1, which can facilitate the discharge of smaller pearls on the second screen frame 9. A through hole is opened at the bottom of the screening frame 1, and the discharge hopper 10 is located in the through hole and moves. The mesh of the second screen frame 9 is smaller than the mesh of the first screen frame 6, which can realize the screening of pearls, and the second screen frame 9 is slightly larger than the first screen frame 6, which can prevent the pearls screened on the first screen frame 6 from falling into the second screen frame 9 when the first screen frame 6 moves. Support columns 3 are installed at the four corners of the bottom surface of the screening frame 1 to support the screening frame 1.

The working principle and use process of the utility model: the grading and screening device for pearl production can first place the pearls to be screened on the first screen frame 6, and then start the driving motor 4, the output end of which can drive the rotating shaft 14 to rotate, and then drive the rotating handle 15 to rotate, and further drive the moving frame 12 to do reciprocating motion, because the first screen frame 6 and the second screen frame 9 are both arranged horizontally, so as to avoid that when the pearls are screened, the smaller pearls are prevented from being discharged together with the larger pearls, after the first screen frame 6 screens the pearls, the smaller pearls can fall into the second screen frame 9 through the first screen frame 6, and the larger pearls on the first screen frame 6 can be discharged from the discharge plate 8 installed on the first screen frame 6 with the movement of the first screen frame 6, and at the same time, when the second screen frame 9 moves, the smaller pearls on the second screen frame 9 can be discharged from the discharge hopper 10, and the larger pearls on the second screen frame 9 can be discharged from the discharge plate 8 installed on the second screen frame 9 with the movement of the second screen frame 9, thereby completing the screening of the pearls.

Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (8)

1. A classifying screen device for pearl production, comprising a screening frame (1), characterized in that: the upper portion sliding connection of screening frame (1) has first reel (6), the lower part of screening frame (1) just is located sliding connection under first reel (6) has second reel (9), the inner wall both sides that screening frame (1) are close to positive one side all rotate and are connected with two sets of gyro wheels (13), movable plate (11) have all been placed between gyro wheel (13) that screening frame (1) positive inner wall both sides rotate and connect, two sets of movable plate (11) one side welding that is close to each other has movable frame (12), the welding of the positive one side of screening frame (1) has backup pad (2), driving motor (4) are installed through the bolt to the top surface of backup pad (2).

2. A sizing and screening device for pearl production according to claim 1, wherein: the screening frame (1) is located positive one side and rotates and be connected with pivot (14) that runs through and extend to screening frame (1) inside, one end fixedly connected with rotation handle (15) that pivot (14) are located screening frame (1) inside.

3. A sizing and screening device for pearl production according to claim 2, wherein: the movable frame (12) is long and is provided with a long through hole, and one end of the rotary handle (15) is positioned in the long through hole formed in the movable frame (12).

4. A sizing and screening device for pearl production according to claim 2, wherein: one end of the rotating shaft (14) positioned outside the screening frame (1) is connected with the output end of the driving motor (4) through a coupler.

5. A sizing and screening device for pearl production according to claim 1, wherein: the upper part and the lower part of one side of the inner walls of the two sides of the screening frame (1) close to each other are provided with a plurality of groups of sliding rods (5), the sliding rods (5) on the upper part of the screening frame (1) penetrate through the side wall of the first screen frame (6), and the sliding rods (5) on the lower part of the screening frame (1) penetrate through the side wall of the second screen frame (9).

6. A sizing and screening device for pearl production according to claim 1, wherein: the screening device is characterized in that the discharging plates (8) extending to the outside of the screening frame (1) are fixedly arranged on the right side of the first screen frame (6) and the left side of the second screen frame (9), two groups of baffles (7) are arranged on the top surface of the discharging plates (8), and the discharging plates (8) are arranged in an inclined mode.

7. A sizing and screening device for pearl production according to claim 1, wherein: the bottom of second reel (9) fixed mounting has hopper (10) that extend to screening frame (1) lower part, the through-hole has been seted up to the bottom of screening frame (1), and hopper (10) are located this through-hole and remove.

8. A sizing and screening device for pearl production according to claim 1, wherein: the meshes of the second screen frame (9) are smaller than those of the first screen frame (6), the second screen frame (9) is slightly larger than the first screen frame (6), and supporting columns (3) are arranged at four corners of the bottom surface of the screening frame (1).