CN111215335A

CN111215335A - Rotation type disc pearl sieving mechanism

Info

Publication number: CN111215335A
Application number: CN201911114547.3A
Authority: CN
Inventors: 李学伟; 谭策; 吴嘉宁; 赖桂忠
Original assignee: Hangzhou Magic Image Intelligent Technology Co ltd
Current assignee: Hangzhou Magic Image Intelligent Technology Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-02
Anticipated expiration: 2039-11-14
Also published as: CN111215335B

Abstract

The invention relates to the field of pearl screening, in particular to a rotary disc pearl screening device which comprises a bracket, a screening bottom plate, a screening disc and a driving motor, wherein the screening bottom plate is arranged on the bracket; the edge of the bottom plate of the screening disc is provided with screening holes; the screening bottom plate is provided with at least one discharging channel, and pearls fall into the discharging channel from the screening holes; one end of the discharge channel, which is far away from the screening hole, is provided with an air inlet hole connected with the air delivery mechanism, and the end close to the screening hole is a discharge hole. The pearls to be screened can be automatically screened, so that the labor intensity of manual screening is reduced, and the screening efficiency is improved; the screened pearls can only be one pearl at a time, so that the pearls can be conveniently arrayed by a subsequent arraying device.

Description

Rotation type disc pearl sieving mechanism

Technical Field

The invention relates to the field of pearl screening, in particular to a rotary disc pearl screening device.

Background

Pearls are mainly sorted by manual naked eyes, selected by long-time skilled hands and classified by using tweezers. The skilled worker selects about 40 kg every day, the eyes are damaged by long-time selection work under strong light, the selection action is repeated on the wrists for a long time, and the labor intensity is high.

Disclosure of Invention

The invention provides a rotary disc pearl screening device for overcoming the problem of high pearl screening labor intensity in the prior art, and the rotary disc pearl screening device can realize automatic pearl screening.

In order to solve the technical problems, the invention adopts the technical scheme that: a rotary disc pearl screening device comprises a support, a screening bottom plate arranged on the support, a screening disc rotationally connected with the screening bottom plate, and a driving motor arranged on the support and driving the screening disc to rotate; the edge of the bottom plate of the screening disc is provided with screening holes; the screening bottom plate is provided with at least one horizontally-arranged discharge channel, and pearls fall into the discharge channel from the screening holes; one end of the discharge channel, which is far away from the screening hole, is provided with an air inlet hole connected with an air conveying mechanism, and one end of the discharge channel, which is close to the screening hole, is a discharge hole.

The pearls to be screened are placed in the screening disc, the driving motor drives the screening disc to rotate, and the pearls fall into the discharging channel from the screening holes in the edge under the centrifugal effect. Compressed air is introduced into the discharging channel by the air delivery mechanism, pearls entering the discharging channel are blown out by the compressed air, and meanwhile, negative pressure is formed in the discharging channel by the compressed air, so that the speed of the pearls entering the discharging channel can be increased.

Preferably, the bottom plate of the screening disc is provided with a plurality of grooves, and the bottom surfaces of the grooves are inclined planes which are inclined from the center to the edge of the bottom plate; the screening holes are positioned at the lowest point of the groove. Pearls in the screening dish flow direction along the incline direction of recess to screening hole, play the effect of water conservancy diversion to the pearl for the speed of pearl flow direction screening hole simultaneously to improve screening efficiency.

Preferably, the side surface of the groove is inclined in a direction close to the screening hole. The side area of each groove is increased, so that pearls have more moving spaces in the grooves, pearls with larger diameters and incapable of flowing into the screening holes can flow towards two sides conveniently, and vacant positions are reserved for pearls meeting screening requirements to flow into the screening holes.

Preferably, the height of the discharge channel is not less than the diameter of the pearl to be screened and not more than three times of the radius of the pearl to be screened. The height of the discharge channel is between the diameter of pearls meeting the screening requirement and the diameter of 1.5 times, so that only one pearl falls into the discharge channel at each time, the pearl discharged at each time is limited to be only one, and the arrangement of subsequent devices is facilitated.

More preferably, the height of the discharge channel is equal to the diameter of the pearls to be screened, the height of the discharge channel is limited to the diameter of the pearls to be screened, and the discharge channel can only contain one pearl at a time and only one pearl at a time.

Preferably, one end of the discharge channel close to the screening hole is an inclined surface inclined to the direction far away from the screening hole. The inclined plane of discharging channel just faces the screening hole, and pearl falls into discharging channel from the screening hole and gets into the inclined plane promptly for pearl is from discharging channel outflow's speed.

Preferably, the inner ring of the screening hole is a convex circular arc. Reduce the area of contact when pearl passes through the screening hole, avoid the card when pearl passes through the screening hole at the screening hole.

Preferably, the support is the bracing piece that is triangular distribution, and movable mounting has the motor mounting panel on the three bracing pieces, driving motor install in on the motor mounting panel. The motor mounting panel makes things convenient for the motor installation, can adjust the height of difference in order to adapt to different grade type motors on the bracing piece.

Preferably, the screening base plate is mounted on the top of the support rod.

Preferably, the bottom surface of the screening disc is provided with a rotating shaft penetrating through the screening bottom plate, and the rotating shaft is connected with the output shaft of the driving motor. After the motors of different types are replaced, the motor, the output shaft and the rotating shaft are connected, so that the motor can be reused and the installation is convenient.

Compared with the prior art, the beneficial effects are: the pearls to be screened can be automatically screened, so that the labor intensity of manual screening is reduced, and the screening efficiency is improved; the screened pearls can only be one pearl at a time, so that the pearls can be conveniently arranged by a subsequent arrangement device; the pearl screening speed is accelerated through the inclined groove structure of the screening disc; compressed air is introduced into the discharging channel, so that the discharging speed of the pearls is increased, and the pearls are prevented from being clamped in the discharging channel.

Drawings

FIG. 1 is a schematic structural view of a rotary disk pearl screening device according to the present invention;

FIG. 2 is another schematic diagram of a rotary disk pearl screening device according to the present invention;

fig. 3 is a partially enlarged view of a position a of fig. 2.

Wherein: 1. a support; 101. a support bar; 2. screening a bottom plate; 3. a screening tray; 301. a rotating shaft; 4. a drive motor; 5. a screening well; 6. a discharge channel; 601. an air inlet; 602. an inclined channel; 7. a gas delivery mechanism; 8. a groove; 9. motor mounting panel.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:

example 1

As shown in fig. 1-3, an embodiment of a rotary disc pearl screening device is provided, which comprises a bracket 1, a screening base plate 2 mounted on the bracket 1, a screening disc 3 rotatably connected to the screening base plate 2, and a driving motor 4 mounted on the bracket 1 and driving the screening disc 3 to rotate; the edge of the bottom plate of the screening disc 3 is provided with a screening hole 5; the screening bottom plate 2 is provided with a horizontally arranged discharge channel 6, and pearls fall into the discharge channel 6 from the screening holes 5; an air inlet 601 connected with the air delivery mechanism 7 is arranged at one end of the discharge channel 6 far away from the screening hole 5, and a discharge hole is arranged at one end close to the screening hole 5. The gas transmission mechanism 7 is a gas pipe joint which is connected with a gas transmission pipe.

Specifically, eight grooves 8 are formed in the bottom plate of the screening disc 3 along the circumferential direction, the bottom surfaces of the grooves 8 are inclined from the center to the edges of the bottom plate, and the side surfaces of the grooves 8 are inclined towards the direction close to the screening holes 5; the screening holes 5 are located at the lowest point of the groove 8. Pearls in the screening disc 3 flow to the screening holes 5 along the inclined direction of the groove 8, so that the pearls are guided to flow, the speed of the pearls flowing to the screening holes is increased, and the screening efficiency is improved. The inclined side surface increases the side area of each groove 8, so that pearls have more moving spaces in the grooves 8, pearls with larger diameters and incapable of flowing into the screening holes 5 can flow towards two sides, and vacant positions are reserved for pearls meeting screening requirements to flow into the screening holes 5.

The height of the discharge channel 6 is equal to the diameter of the pearls to be screened, the height of the discharge channel 6 is limited to the diameter of the pearls to be screened, the channel can only contain one pearl every time, and only one pearl is discharged every time. The end of the discharge channel 6 near the screening hole 5 is an inclined channel 602 that is inclined downwards. The inclined surface of the discharging channel 6 is opposite to the screening hole 5, pearls fall into the discharging channel from the screening hole 5 and then enter the inclined surface, and the flowing speed of the pearls from the discharging channel is increased.

In order to avoid the pearl passing through the screening holes to be clamped in the screening holes 5, the inner ring of the screening holes 5 is a convex arc, so that the contact area of the pearl passing through the screening holes is reduced.

The working principle or working process of the embodiment is as follows: pearls to be screened are placed in the screening disc 3, the driving motor 4 drives the screening disc 3 to rotate, and the pearls fall into the discharging channel 6 from the screening holes 5 under the centrifugal action and the flow guide action of the grooves 8. The air delivery mechanism 7 introduces compressed air into the discharge channel 6, the compressed air blows out pearls entering the discharge channel 6, and meanwhile the compressed air forms negative pressure in the discharge channel 6 to generate certain suction to the pearls.

The beneficial effects of this embodiment: the pearls to be screened can be automatically screened, so that the labor intensity of manual screening is reduced, and the screening efficiency is improved; the screened pearls can only be one pearl at a time, so that the pearls can be conveniently arranged by a subsequent arrangement device; the pearl screening speed is accelerated through the inclined groove structure of the screening disc; compressed air is introduced into the discharging channel, so that the discharging speed of the pearls is increased, and the pearls are prevented from being clamped in the discharging channel.

Example 2

Referring to fig. 2, another embodiment of the present invention is shown, and the present embodiment is different from embodiment 1 in that the support 1 is a support rod 101 distributed in a triangle, a motor mounting plate 9 is movably mounted on the three support rods 101, and the driving motor 4 is mounted on the motor mounting plate 9. The motor mounting plate 9 facilitates motor installation, and different heights of the supporting rod 101 can be adjusted to adapt to different types of motors.

Wherein, the bottom surface of the screening disc 3 is provided with a rotating shaft 301 penetrating through the screening bottom plate 2, and the rotating shaft 301 is connected with the output shaft of the driving motor 4. After the motors of different types are replaced, the motor, the output shaft and the rotating shaft are connected, so that the motor can be reused and the installation is convenient.

In addition, the sieving base plate 2 is installed on the top of the supporting bar 101.

The remaining technical features are in accordance with the working principle uniformity example 1.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A rotary disc pearl screening device is characterized by comprising a support (1), a screening bottom plate (2) arranged on the support (1), a screening disc (3) rotatably connected with the screening bottom plate (2), and a driving motor (4) arranged on the support (1) and driving the screening disc (3) to rotate; the edge of the bottom plate of the screening disc (3) is provided with screening holes (5); the screening bottom plate (2) is provided with a plurality of discharging channels (6) which are horizontally arranged; and an air inlet hole (601) connected with an air transmission mechanism (7) is formed in one end, far away from the screening hole (5), of the discharge channel (6), and a discharge hole is formed in one end, close to the screening hole (5).

2. A rotary disk pearl screening device according to claim 1, wherein the bottom plate of the screening disk (3) is provided with a plurality of grooves (8), the bottom surfaces of the grooves (8) are inclined surfaces which are inclined from the center to the edge of the screening disk (3); the screening holes (5) are located at the lowest point of the groove (8).

3. A rotary disc pearl screening device according to claim 2, wherein the sides of said groove (8) are inclined towards the screening opening (5).

4. A rotary disc pearl screening device according to claim 1, wherein the height of the discharge channel (6) is not less than the diameter of the pearl to be screened and not more than three times the radius of the pearl to be screened.

5. A rotary disc pearl screening device according to claim 4, wherein the height of the discharge channel (6) is equal to the diameter of the pearl to be screened.

6. A rotary disc pearl screening device according to claim 1, wherein the end of the discharging channel (6) near the screening hole is an inclined channel (602) inclined in a direction away from the screening hole (5).

7. A rotary disc pearl screening device according to claim 1, wherein the inner circle of the screening hole (5) is a convex circular arc.

8. The rotary disc pearl screening device according to any one of claims 1 to 7, wherein the support (1) is a support rod (101) which is distributed in a triangular shape, a motor mounting plate (9) is movably mounted on the support rod (101), and the driving motor (4) is mounted on the motor mounting plate (9).

9. A rotary disc pearl screening device according to claim 8, wherein said screening base (2) is mounted on top of said support bar (101).

10. A rotary disc pearl screening device according to claim 8, wherein the bottom surface of the screening disc (3) is provided with a rotating shaft (301) penetrating through the screening base plate (2), and the rotating shaft (301) is connected with the output shaft of the driving motor (4).