Bead screening mechanism for bead embroidery

Abstract

The invention provides a bead screening mechanism for bead embroidery, which comprises a charging barrel and a feeding container arranged at the upper end of the charging barrel, the bottom of the charging barrel is provided with a rotatable turntable, the side wall of the charging barrel is provided with a bead selecting hole capable of screening required beads or a bead selecting device provided with the bead selecting hole, and the bead selecting device is provided with a plurality of bead selecting holes. Elastic bodies matched with the beads are arranged at the positions, corresponding to the bead selecting holes, in the charging barrel, and a driving piece which rotates along with rotation of the rotating disc and periodically pushes the elastic bodies to enable the elastic bodies to push the needed beads into the bead selecting holes is arranged on the rotating disc. The front and back surfaces of the beads can be screened, and the consistency of the beads and the stability of sewing and embroidering are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of bead embroidery, in particular to a bead screening mechanism for bead embroidery. Background Art

[0002] The threading mechanism for bead embroidery typically consists of a barrel for holding beads, a feed container located at the top of the barrel, and a bead guide rod with one end inserted into the barrel. The feed container feeds beads into the barrel, and the barrel or a propeller rotates, driving the beads, with a certain probability, to the threading end of the rod. The threading method described above is only suitable for regular beads. These beads do not need to be distinguished between the front and back when embroidering, so the beads can be used normally regardless of which end is inserted into the bead guide rod.

[0003] However, for some irregular beads, especially those that need to be strictly distinguished between the front and back sides during sewing and embroidery, it is urgent to set up a mechanism that can screen the beads to ensure that the beads inserted by the bead guide rod are in the same direction and will not affect the sewing and embroidery effect. Summary of the Invention

[0004] In order to solve the above problems of the prior art, the present invention provides a bead screening mechanism for bead embroidery, which can screen out qualified beads and thread them, thereby ensuring the accuracy of sewing.

[0005] The technical solutions adopted are as follows:

[0006] A bead screening mechanism for bead embroidery comprises a relatively fixed barrel for accommodating beads, a rotatable turntable for feeding beads being provided at the bottom of the barrel, a bead selection hole for screening required beads being provided on one side of the turntable located on the side wall of the barrel, an elastic body for cooperating with the beads being provided at a corresponding position of the bead selection hole, a driving member being provided on the turntable for rotating as the turntable rotates and periodically pushing the elastic body so that the elastic body pushes the required beads into the bead selection hole, and the elastic body being mounted on the barrel or relatively fixedly provided on an external bracket.

[0007] Furthermore, the barrel is provided with a feeding container.

[0008] Furthermore, the output end of the bead selection hole is provided with a conveying trough.

[0009] Furthermore, the elastic body includes a ball pushing arm for pushing the ball and a driving arm cooperating with the driving member.

[0010] Furthermore, the driving member is a polygonal cam or a driving rod provided on the rotating shaft of the turntable.

[0011] Furthermore, a first driving structure for driving the turntable to rotate is provided at the lower end of the turntable. The first driving structure is a driving motor that directly drives the turntable, or is a driving motor that is indirectly connected to the turntable through a synchronous pulley assembly.

[0012] Furthermore, the turntable and the conveying trough are arranged horizontally, and the output end of the turntable conveying trough is provided with a bead guide rod that cooperates with the conveying trough and is used for threading beads.

[0013] Furthermore, the turntable and the conveying trough are arranged horizontally, and the output end of the conveying trough is provided with a bead conveying mechanism for conveying the beads in the conveying trough to the bead guide rod.

[0014] Furthermore, the turntable and the conveying trough are arranged at an angle, and the output end of the conveying trough is provided with a bead conveying mechanism for conveying the beads in the conveying trough to the bead guide rod.

[0015] Furthermore, the bead conveying mechanism includes a conveying bottom trough, the conveying trough is arranged at the corresponding position of the conveying bottom trough, the bottom surface of the conveying bottom trough is provided with a bead dropping hole cooperating with the bead guide rod, the conveying bottom trough is provided with a rotatable driving turntable, the driving turntable is provided with a corresponding second driving structure, the driving turntable is provided with at least one limiting hole that can accommodate beads and push the beads to rotate in the conveying bottom trough, the bottom surface of the conveying bottom trough is provided with a smooth sliding surface or several sliding surfaces connected in sequence for beads to slide between the conveying trough and the bead dropping hole, the sliding surface is provided with an inclination angle for receiving beads output from the inclined channel at the position cooperating with the conveying trough, the inclination angle of the sliding surface gradually decreases to a plane from the corresponding position of the conveying trough to the bead dropping hole, at least before the beads enter the bead dropping hole, the sliding surface is a plane, and the bead dropping hole and the conveying trough are not at the same work station.

[0016] Furthermore, the bottom trough of the conveyor is provided with a climbing sliding surface connected to the sliding surface from the falling bead hole to the place where it cooperates with the conveying trough. The climbing sliding surface is located on the path where the falling bead hole rotates with the driving turntable. The climbing sliding surface is a smooth sliding surface or a plurality of sliding surfaces connected in sequence for the beads to slide.

[0017] Furthermore, the conveying bottom groove is a circular groove, the driving turntable is a circular disc, the driving turntable has a plurality of limiting holes arranged along the circumferential direction, and the side walls of the limiting holes include a driving surface and a limiting surface.

[0018] Furthermore, the distance between the limiting surface and the side wall of the conveying bottom trough is adapted to the diameter of the beads and to the corresponding width of the beads on the sliding surfaces at different inclination angles.

[0019] Furthermore, the diameter of the bead-dropping hole is greater than or equal to the diameter of the bead.

[0020] Furthermore, the conveying trough is inclined at the upper end of the conveying bottom trough, and the inclination angle of the conveying trough is greater than or equal to the inclination angle of the sliding surface close to the conveying channel.

[0021] Furthermore, a groove for accommodating a bead and cooperating with the side wall of the bead is provided at a corresponding position of each sliding surface with an inclined angle.

[0022] Furthermore, the second driving structure includes a second driving motor provided at the upper end of the driving turntable and a motor mounting bracket for mounting the second driving motor.

[0023] Furthermore, the end surface of the driving turntable close to the sliding surface is provided with an inclined surface that matches the sliding surface.

[0024] Compared with the existing technology, the beneficial effects produced by the present invention are:

[0025] The present invention provides a bead screening mechanism for bead embroidery. A turntable is provided at the bottom of a relatively fixed barrel to drive the beads to rotate. A bead selection hole is provided on the side wall of the barrel for screening qualified beads. An elastic body is provided in the barrel to push the qualified beads into the bead selection hole. A driving member is provided on the rotating shaft of the turntable to rotate with the turntable and periodically drive the elastic body to push the beads. When the turntable rotates, the beads rotate while the driving member drives the elastic body to push the beads. Only one driving structure is required to drive the turntable and the driving member simultaneously, thereby saving costs. By setting the shape of the bead selection hole to distinguish the front and back sides of the beads, appropriate beads can be entered and output in a directional manner, thereby facilitating embroidery and ensuring the consistency of the beads. The embroidery effect is better, and the phenomenon of sewing the wrong front and back sides of the beads is less likely to occur, thereby improving the accuracy of embroidery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 、 2 Schematic diagrams of the internal structure of the present invention from different angles;

[0027] Figure 3 Schematic diagram of the first driving structure directly driving the turntable;

[0028] Figure 4 、 6 Schematic diagrams of disassembly of the present invention at different angles;

[0029] Figure 5 Schematic diagram of the first driving structure indirectly driving the turntable;

[0030] Figure 7 It is an enlarged view of the bead conveying mechanism;

[0031] Figure 8 It is a partial structural diagram of the bead conveying mechanism;

[0032] Figure 9 This is a schematic diagram of the overall structure of Example 2;

[0033] Among them, the barrel 1, the feeding container 2, the turntable 3, the bead selector 4, the bead selection hole 401, the elastomer 5, the bead pushing arm 501, the driving arm 502, the beads 6, the driving part 7, the conveying trough 8, the first driving structure 9, the synchronous pulley assembly 10, the cover plate 11, the bead guide rod 12, the bead arrangement structure 13, the mounting frame 14, the bead conveying mechanism 15, the conveying bottom trough 1501, the driving turntable 1502, the bead dropping hole 16, the second driving structure 17, the second driving motor 1701, the motor mounting frame 1702, the limiting hole 18, the sliding surface 19, the driving surface 20, the limiting surface 21, the groove 22, and the inclined surface 23. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to specific embodiments.

[0035] refer to Figure 1-9 A bead screening mechanism for bead embroidery includes a relatively fixed barrel 1 for accommodating beads, a rotatable turntable 3 for feeding beads disposed at the bottom of the barrel 1, a bead selection hole 401 disposed on the side wall of the barrel 1 for selecting desired beads 6, and an elastic body 5 corresponding to the bead selection hole. The turntable 3 is provided with a driving member 7 that rotates with the turntable and periodically pushes the elastic body 5 to push the desired beads 6 into the bead selection hole. The elastic body 5 is mounted on the barrel 1 or relatively fixed on an external bracket.

[0036] The material barrel 1 can be connected to a material supply container 2. In this embodiment, the elastic body 5 is installed on the material barrel.

[0037] The shape of the bead selection hole 401 is consistent with the shape of the beads and is used to screen the beads needed for embroidery. The beads passing through the bead selection hole 401 are all in the same direction and are then transported to the bead threading rod for threading, which can ensure the consistency of the beads and the accuracy of embroidery.

[0038] The bead selection hole 401 can be separately provided on the inner wall of the barrel 1, and a conveying trough 8 for outputting beads is provided at the corresponding position of the bead selection hole; or the bead selection hole and the conveying trough 8 can be directly provided as a whole as a bead selector 4 provided on the side wall of the barrel.

[0039] The elastic body 5 is a spring, and the shape of the spring is not limited. The elastic body 5 includes a bead pushing arm 501 for pushing the beads and a driving arm 502 that cooperates with the driving member 7. The end of the driving arm 502 or a separately provided connecting portion is fixedly connected to the barrel 1. The bead pushing arm 501 is arranged near the bead selection hole 401, and is arranged on one side of the bead selection hole 401. There is a space between the bead pushing arm 501 and the inner wall of the barrel for the beads 6 to enter. The rotation of the turntable drives the beads to move near the bead selection hole 401. The driving member 7 pushes the driving arm 502 to drive the elastic body 5 to move, that is, drives the bead pushing arm 501 to push the beads. Qualified beads fit into the bead selection hole and are pushed into the bead selection hole, while unqualified beads are blocked outside the bead selection hole 401 and continue to rotate under the drive of the turntable. Since there are many beads in the barrel, the rotating beads will give a force to the unqualified beads stuck in the bead pushing arm 501, driving it to push the elastic body to deform, so that the unqualified beads pop out from between the elastic arm and the inner wall. At the same time, the elastomer can also give a flipping force to the beads in the barrel 1 that rotate with the turntable 3, causing the beads to flip over in the barrel 1, so as to improve the fit between the beads and the bead selection hole 401.

[0040] The driving member 7 is a polygonal cam or drive rod mounted on the turntable shaft. Other structures are also acceptable, as long as they periodically cooperate with the ball-pushing arm 501. The driving member 7 is mounted directly on the turntable shaft and rotates with the turntable, eliminating the need for a separate drive structure and saving cost and space. In this embodiment, a polygonal cam is used, utilizing its corners to cooperate with the ball-pushing arm 501 for driving.

[0041] The lower end of the turntable 3 is provided with a first driving structure 9 for driving the turntable to rotate. The first driving structure 9 is a driving motor that directly drives the turntable, for example Figure 3 , or a drive motor indirectly connected through a synchronous pulley assembly 10, which can share a drive motor with the ball row structure, for example Figure 5 The bead discharge structure 13 is used to discharge beads and fix the bead guide rod.

[0042] The barrel 1 is provided with a cover plate 11 at its top, and the feed container 2 is mounted on this cover plate 11. The feed container 2 has a dropper opening for feeding beads into the barrel 1. A sufficient number of beads must be present within the barrel 1. As the beads rotate, they squeeze each other, flipping them over and ensuring that a sufficient number of beads can be screened through the bead selection hole. If the barrel is running low on beads, new beads are supplied from the feed container 2.

[0043] The lower end of the barrel 1 is provided with a mounting frame 14 for mounting the first drive structure 9, the synchronous pulley assembly 10, the barrel 1, and the bead selector 4. The first drive structure 9 also includes a drive shaft for driving the turntable. The drive shaft is mounted on the mounting frame 14 via a bearing, so that the turntable can rotate relative to the mounting frame 14 without affecting the mounting frame 14, which remains stationary.

[0044] Example 1

[0045] See also Figure 1-6 The turntable 3 is horizontally arranged with the conveying trough 8. The output end of the conveying trough 8 is directly provided with a vertical bead guide rod 12 that cooperates with the conveying trough. The bead guide rod is perpendicular to the bead selector 4. The horizontal arrangement of the bead selector 4 can ensure that the beads can enter the end of the bead guide rod horizontally. The beads are perpendicular to the bead guide rod, and the bead holes are easier to align with the bead guide rod, which is not easy to be skewed and not easy to affect the subsequent bead clamping and sewing. If necessary, a stopper for stopping the beads can be set at the end of the conveying trough 8, and the bead guide rod 10 is arranged between the stopper and the conveying end of the conveying trough 8.

[0046] Example 2

[0047] See also Figure 7-9 The turntable 3 and the conveying trough 8 are arranged obliquely, and the output end of the conveying trough 8 is provided with a bead conveying mechanism 15 for conveying the beads in the conveying trough to the bead guide rod.

[0048] The bead conveying mechanism 15 includes a conveying bottom groove 1501, the conveying groove 8 is arranged at the corresponding position of the conveying bottom groove 1501, the bottom surface of the conveying bottom groove 1501 is provided with a bead drop hole 16 that cooperates with the bead guide rod 12, the conveying bottom groove 1501 is provided with a rotatable driving turntable 1502, the driving turntable 1502 is provided with a corresponding second driving structure 17, the driving turntable 1502 is provided with at least one limiting hole 18 that can accommodate beads and can push the beads to rotate in the conveying bottom groove 1501, the conveying bottom groove 15 The bottom surface of the 01 is provided with a smooth sliding surface 19 or several sequentially connected sliding surfaces 19 for beads to slide between the conveyor trough 8 and the bead drop hole 16. The sliding surface 19 is located at a slant angle at the point where it cooperates with the conveyor trough 8 to receive beads output from the inclined channel. The inclination angle of the sliding surface 19 gradually decreases from the corresponding point of the conveyor trough 8 to the bead drop hole 16 to a flat surface. At least before the beads enter the bead drop hole 16, the sliding surface is flat. As a preference, to facilitate bead threading, the plane can usually be set to a horizontal plane, of course, it can also be a plane with a slight inclination. The bead drop hole 16 and the conveyor trough 8 are located at different stations.

[0049] The conveying bottom trough 1 is also provided with a climbing sliding surface 161 docking with the sliding surface 19 from the bead falling hole 16 to the cooperation with the conveying trough 8. The climbing sliding surface is located on the path of the bead falling hole 16 rotating with the driving turntable 1502. The climbing sliding surface 161 is a smooth sliding surface or several sliding surfaces connected in sequence for the beads to slide, so that the beads that fail to fall smoothly at the bead falling hole 16 will enter the climbing sliding surface 161 in the limiting hole 18 of the driving turntable 1502 as the driving turntable 1502 rotates, and will enter the sliding surface 16 again from the climbing sliding surface 161 to be threaded with beads again.

[0050] The second driving structure 17 includes a second driving motor 1701 disposed on the upper end of the driving turntable 1502 and a motor mounting bracket 1702 for mounting the second driving motor 1701. The output shaft of the second driving motor 1701 is directly disposed at the center of the driving turntable 1502 to drive the driving turntable 1502 to rotate.

[0051] The beads fall from the conveying trough 8 into the conveying bottom trough 1501 and into the limiting holes 18 of the driving turntable 1502. Each limiting hole 18 can only accommodate one bead. Preferably, the conveying bottom trough 1501 is a circular trough, and the driving turntable 1502 is a disc. The driving turntable 1502 has a plurality of limiting holes 18 arranged circumferentially. The more limiting holes 18 there are, the more beads can be transported and the higher the efficiency. The side wall of the limiting hole 18 includes a driving surface 20 and a limiting surface 21. When the driving turntable 1502 rotates, the driving surface 20 of the limiting hole 18 cooperates with the bead 6 to push the bead 6 to move to the bead dropping hole 16. The bead passes through the bead dropping hole 16 and onto the bead guide rod. Preferably, the conveying channel 2 is arranged on the opposite side of the bead dropping hole 4.

[0052] The distance between the limiting surface 21 and the sidewall of the conveying bottom groove 1501 is adapted to the diameter of the bead and the corresponding width of the bead on the sliding surface 19 at different inclination angles. The width refers to the width of the bead's projection toward the bottom surface. The limiting hole 18 is used to limit the position of the bead 6, drive the bead 6 to slide, and ensure that the bead can be accurately inserted into the bead guide rod. Therefore, the limiting hole 18 not only ensures that the movement and sliding of the bead are not restricted, but also limits the bead as much as possible, so that when the bead reaches the bead drop hole, the bead hole can be aligned with the bead guide rod, facilitating bead threading.

[0053] To ensure that the beads can smoothly penetrate the bead guide rod, the diameter of the bead drop hole 16 needs to be greater than or equal to the diameter of the beads. Preferably, the diameter of the bead drop hole 16 is greater than the diameter of the beads to ensure that the beads can definitely fall through the bead drop hole 16. At least before the beads enter the bead drop hole 16, the sliding surface is flat, so that the beads remain horizontal before entering the bead drop hole. The beads will not get stuck when entering the bead drop hole, and the beads can fall into the bead guide rod 12 under the action of gravity. If the beads 6 enter the bead drop hole 16 at an angle, the bead hole will be difficult to align with the bead guide rod, causing the beads to get stuck.

[0054] The conveyor trough 8 is tilted at the upper end of the conveyor bottom trough 1501. The tilt angle of the conveyor trough 8 is greater than or equal to the tilt angle of the sliding surface 19 adjacent to the conveyor trough. To ensure that the beads 6 fall smoothly onto the sliding surface 19, the tilt angle of the sliding surface 19 adjacent to the conveyor trough is at least equal to the tilt angle of the conveyor trough 8, and preferably, is less than the tilt angle of the conveyor trough 8. If the tilt angle of the sliding surface 19 is too large, the beads will easily flip during falling, making it difficult to ensure the front and back of the beads, which will affect the subsequent embroidery effect.

[0055] The end surface of the driving turntable close to the sliding surface 19 is provided with an inclined surface 18 that cooperates with the sliding surface 19 to prevent interference between the driving member 14 and the sliding surface 19.

[0056] Each inclined sliding surface 19 is provided with a groove 22 corresponding to the bead's sidewall, designed to accommodate the beads. The groove 22 is designed to facilitate the smooth descent of the beads 6 onto the sliding surface. Its arc-shaped surface provides a certain cushioning effect. The length of the sliding surface must be greater than the diameter of the bead, otherwise the bead will become stuck in the output channel and unable to fall. The groove 22 provides a certain depth for the beads, allowing them to completely escape from the conveyor trough.

[0057] The end surface of the driving turntable 1502 close to the sliding surface 19 is provided with an inclined surface 23 that cooperates with the sliding surface 7. The inclined surface 23 is provided to prevent the driving member from interfering with the sliding surface 19.

[0058] The bead screening mechanism selects the beads from the bead selection hole and puts them into the conveying trough 8. The inclined conveying trough 8 allows the beads to enter the bead conveying mechanism 15 under the push of gravity and adjacent beads, and then the bead conveying mechanism 15 transports the beads to the bead guide rod for threading.

[0059] Example 3

[0060] The turntable 3 and the bead selector 4 are arranged horizontally, and the output end of the conveying trough 8 is provided with a bead conveying mechanism 15 for conveying the beads in the conveying trough to the bead guide rod. The bead conveying mechanism 15 is consistent with the bead conveying mechanism in Example 2.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A bead screening mechanism for bead embroidery, characterized by: The invention comprises a relatively fixed barrel (1) for accommodating beads, a rotatable turntable (3) for feeding beads being provided at the bottom of the barrel (1), a bead selection hole (401) for screening required beads (6) being provided on one side of the turntable (3) and located on the side wall of the barrel (1), an elastic body (5) cooperating with the beads (6) being provided at a corresponding position of the bead selection hole, a driving member (7) being provided on the turntable (3) for rotating as the turntable rotates and periodically pushing the elastic body (5) so that the elastic body pushes the required beads (6) into the bead selection hole, and the elastic body (5) is installed on the barrel (1) or relatively fixedly provided on an external bracket.

2. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The barrel is provided with a feeding container (2).

3. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The output end of the bead selection hole (401) is provided with a conveying trough (8).

4. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The elastic body (5) comprises a ball pushing arm (501) for pushing the ball and a driving arm (502) cooperating with the driving member (7).

5. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The driving member (7) is a polygonal cam or a driving rod arranged on the rotating shaft of the turntable.

6. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: A first driving structure (9) for driving the turntable to rotate is provided at the lower end of the turntable (3). The first driving structure (9) is a driving motor that directly drives the turntable, or is a driving motor that is indirectly connected to the turntable through a synchronous pulley assembly (10).

7. The bead screening mechanism for bead embroidery according to claim 3, characterized in that: The turntable (3) and the conveying trough (8) are arranged horizontally, and the output end of the conveying trough (8) of the turntable (3) is provided with a bead guide rod (12) matched with the conveying trough for threading beads.

8. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The turntable (3) and the conveying trough (8) are arranged horizontally, and the output end of the conveying trough (8) is provided with a bead conveying mechanism (15) for conveying the beads in the conveying trough to the bead guide rod.

9. The bead screening mechanism for bead embroidery according to claim 1, characterized in that: The turntable (3) and the conveying trough (8) are arranged obliquely, and the output end of the conveying trough (8) is provided with a bead conveying mechanism (15) for conveying the beads in the conveying trough to the bead guide rod.

10. The bead screening mechanism for bead embroidery according to claim 8 or 9, characterized in that: The bead conveying mechanism (15) includes a conveying bottom groove (1501), the conveying groove (8) is arranged at a corresponding position of the conveying bottom groove (1501), the bottom surface of the conveying bottom groove (1501) is provided with a bead drop hole (16) that cooperates with the bead guide rod (12), the conveying bottom groove (1501) is provided with a rotatable driving turntable (1502), the driving turntable (1502) is provided with a corresponding second driving structure (17), and the driving turntable (1502) is provided with at least one limiting hole (17) that can accommodate beads and push the beads to rotate in the conveying bottom groove (1501). 8), the bottom surface of the conveying bottom trough (1501) is provided with a smooth sliding surface (19) or a plurality of sliding surfaces (19) connected in sequence for beads to slide between the conveying trough (8) and the bead dropping hole (16), the sliding surface (19) is provided with an inclination angle for receiving beads output from the inclined channel at the position where it cooperates with the conveying trough (8), the inclination angle of the sliding surface (19) gradually decreases to a plane from the corresponding position of the conveying trough (8) to the bead dropping hole (16), at least before the beads enter the bead dropping hole (16), the sliding surface is a plane, and the bead dropping hole (16) and the conveying trough (8) are at different workstations.

11. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The conveying bottom groove (1501) is a circular groove, the driving turntable (1502) is a circular disc, and the driving turntable (1502) has a plurality of limiting holes (18) arranged along the circumference, and the side wall of the limiting hole (18) includes a driving surface (20) and a limiting surface (21).

12. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The distance between the limiting surface (21) and the side wall of the conveying bottom groove (1501) is adapted to the diameter of the bead and to the corresponding width of the bead on the sliding surface (19) at different inclination angles; the diameter of the bead falling hole (16) is greater than or equal to the diameter of the bead.

13. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The conveying bottom trough (1) is also provided with a climbing sliding surface (161) docking with the sliding surface (19) from the bead falling hole (16) to the joint with the conveying trough (8). The climbing sliding surface (161) is located on the path of the bead falling hole (16) rotating with the driving turntable (1502). The climbing sliding surface (161) is a smooth sliding surface or a plurality of sliding surfaces connected in sequence for the beads to slide.

14. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The conveying trough (8) is tilted at the upper end of the conveying bottom trough (1501), and the tilt angle of the conveying trough (8) is greater than or equal to the tilt angle of the sliding surface (19) close to the conveying channel.

15. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: A groove (22) for accommodating beads and cooperating with the side wall of the beads is provided on the inner side of the conveying bottom groove at a position corresponding to each sliding surface (19) with an inclined angle.

16. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The second driving structure (17) comprises a second driving motor (1701) arranged at the upper end of the driving turntable and a motor mounting frame (1702) for mounting the second driving motor (1701).

17. The bead screening mechanism for bead embroidery according to claim 10, characterized in that: The end surface of the driving turntable (1502) close to the sliding surface (19) is provided with an inclined surface (23) that matches the sliding surface (19).

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