An automatic feeding system and feeding method for screw feeding

Abstract

The present invention belongs to the field of automatic feeding technology, specifically an automatic feeding system and feeding method for screw feeding, which includes: a cabinet, a plurality of guide grooves are opened in the lower part of the inner part of the cabinet, and the bottom end of the guide groove is provided with an arc surface. The automatic feeding system and feeding method for screw feeding, by pouring the screws, the screw sorting assembly drives the screw sorting position, so that the screws are changed from a disorderly arrangement to an evenly spaced longitudinal arrangement, and then the spacing of the screws is controlled by the guide groove, so that when the screw transport assembly transports the screws in the sub-cabinet, it can transport a whole row of screws in the sub-cabinet to the outside at one time for feeding, and can directly carry out subsequent processing, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automatic feeding, in particular to an automatic feeding system for screw feeding and a feeding method thereof. Background Art

[0002] Screw, a cylinder with spiral grooves cut on the outer surface or a cone with spiral grooves cut on the conical surface. There are many types of screws, such as hexagonal screws, large screws, hexagonal screws, etc. Large screws are indispensable components in the industrial field. The main functions of large screws include conveying, compacting, melting and stirring. Large screws need to be conveyed through a feeding system during production and processing.

[0003] However, the existing automated feeding system often transports large screws one by one, which has a very low working efficiency. In addition, the transported screws are often arranged in a disorderly manner and need to be aligned before processing. Summary of the invention

[0004] The main purpose of the present invention is to propose an automated feeding system and feeding method for screw feeding, which solves the problem that the existing automated feeding system proposed in the above technical background often transports the screws one by one, has low work efficiency, and the transported screws are often arranged in a disorderly manner and need to be aligned before processing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An automatic feeding system for screw feeding, comprising:

[0007] A cabinet, wherein a plurality of guide grooves are provided at the lower inner part of the cabinet, and a curved surface is provided at the bottom end of the guide groove, one side of the cabinet is connected with a sub-cabinet, a frame A and a frame B are installed on the outer side of the cabinet, and a frame C is installed on the outer side of the sub-cabinet;

[0008] A screw finishing assembly, wherein the driving part of the screw finishing assembly is installed in the frame A, and the movable part of the screw finishing assembly is located inside the cabinet;

[0009] A screw conveying assembly, wherein the driving part of the screw conveying assembly is installed outside the cabinet and the auxiliary cabinet, the movable part of the screw conveying assembly is located inside the cabinet and the auxiliary cabinet, and the movable part of the screw conveying assembly is located below the screw finishing assembly;

[0010] The screw conveying assembly, the driving part of the screw conveying assembly is installed in the frame C, and the clamping part of the screw conveying assembly is located inside the auxiliary cabinet.

[0011] As a preferred embodiment of an automated feeding system for screw feeding described in the present invention, the screw sorting assembly includes a driving motor A, a sprocket, a chain, and a sorting wheel. The driving motor A is installed on the outside of the frame A. The output end of the driving motor A is fixedly connected to a sprocket, and a sprocket is transmission-connected to several other sprockets through a chain. The sprocket is rotationally connected in the frame A. The rear end of the sprocket is fixedly connected to the sorting wheel, and the spacing between two adjacent sorting wheels, the diameter of the screw and the width of the guide groove are all the same. Several of the guide grooves are respectively located below the gaps between several sorting wheels, and the sorting wheel is rotationally connected in the cabinet through an axis.

[0012] As a preferred solution of an automatic feeding system for screw feeding described in the present invention, the screw sorting assembly also includes a screw toggle assembly, which includes a drive motor B, a gear, a toothed rod, a connecting plate and a toggle soft rod. The drive motor B is installed on the outside of the frame B, and the output end of the drive motor B is fixedly connected to the gear. The top and bottom ends of the gear are respectively meshed and connected with two toothed rods, and the two toothed rods are rotationally symmetrical. The two toothed rods are both slidably connected in the frame B, one end of the toothed rod is fixedly connected to the connecting plate, and the connecting plate is located outside the frame B, the connecting plate is fixedly connected to a plurality of toggle soft rods, and the toggle soft rods penetrate into the interior of the cabinet, and the plurality of toggle soft rods on the two connecting plates are staggered in the same horizontal plane.

[0013] As a preferred embodiment of an automatic feeding system for screw feeding described in the present invention, the screw conveying assembly includes a drive motor C, a transmission wheel A, a conveyor belt A, a drive motor D, a transmission wheel B and a conveyor belt B, the drive motor C is installed on the outside of the cabinet, the output end of the drive motor C is fixedly connected to a transmission wheel A, and the outer sides of a transmission wheel A and several other transmission wheels A are transmission-connected to the conveyor belt A, the drive motor D is installed on the outside of the auxiliary cabinet, the output end of the drive motor D is fixedly connected to a transmission wheel B, and the outer sides of a transmission wheel B and several other transmission wheels B are transmission-connected to the conveyor belt B, the bottom ends of several of the guide grooves are connected to the conveyor belt A, and the longitudinal width of the cabinet on both sides of the conveyor belt A is the same as the length of the screw.

[0014] As a preferred embodiment of an automated feeding system for screw feeding described in the present invention, the screw conveying assembly includes a driving motor E, a transmission wheel C, a transmission belt A, a transmission wheel D, a threaded rod A, a mounting box, a support arm, a mounting plate and a clamping structure, the driving motor E is installed on the outside of the frame C, the output end of the driving motor is fixedly connected to the transmission wheel C, the transmission wheel C is transmission-connected to the transmission wheel D through the transmission belt A, the transmission wheel D is threadedly connected to the threaded rod A through an internal thread, the threaded rod A is slidingly connected to the frame C, the top of the threaded rod A is fixedly connected to the mounting box, the interior of the mounting box is fixedly connected with a driving motor F, the output end of the driving motor F is fixedly connected to one end of the support arm, the other end of the support arm is fixedly connected to the mounting plate, and the bottom end of the mounting plate is fixedly connected to a number of clamping structures.

[0015] As a preferred solution of an automatic feeding system for screw feeding described in the present invention, a limiting groove is provided at the top of the transmission wheel D, the inside of the limiting groove is rotatably connected to a limiting ring, and the top of the limiting ring is installed inside the frame C.

[0016] As a preferred solution of an automatic feeding system for screw feeding described in the present invention, a cross-shaped guide rod is slidably connected in the groove body at the bottom end of the screw, and the groove body is adapted to the cross-shaped guide rod, and the bottom end of the guide rod is installed inside the frame C.

[0017] As a preferred embodiment of an automated feeding system for screw feeding described in the present invention, the clamping structure includes a driving motor G, a threaded rod B, a screw sleeve, a connecting rod, a clamping arm, a connecting shaft and clamping teeth, a plurality of the driving motors G are installed at the bottom end of the mounting plate, the output end of the driving motor G is fixedly connected to the threaded rod B, the threaded rod B is threadedly connected to the screw sleeve, the two sides of the screw sleeve are respectively rotatably connected to the two connecting rods, the other ends of the two connecting rods are respectively rotatably connected to the upper parts of the two clamping arms, the middle parts of the two clamping arms are rotatably connected through a connecting shaft, and clamping teeth are installed on the inner side of the lower part of the clamping arm.

[0018] As a preferred solution of an automatic feeding system for screw feeding described in the present invention, wherein: the plurality of clamping teeth on one side are arranged equidistantly in the vertical direction, the lengths of the plurality of clamping teeth on one side are gradually shortened, and the longer clamping teeth are located at the bottom of the clamping arm, and the top surface of the clamping teeth is provided with a slope, and the height of the higher side of the slope is twice the height of the lower side.

[0019] An automatic feeding method for screw feeding comprises the following steps:

[0020] S1: By introducing the screws into the cabinet, the screw arrangement assembly in the cabinet drives the screw arrangement position, so that the screws are arranged from a disorderly arrangement to an equidistant longitudinal arrangement;

[0021] S2: The screw falls from the screw finishing assembly into the guide groove, and the screw falls longitudinally onto the screw conveying assembly through the guide groove;

[0022] S3: The screw conveying assembly conveys the screw into the auxiliary cabinet so that the screw is arranged neatly in the auxiliary cabinet;

[0023] S4: The screws in the auxiliary cabinet are transported by the screw transport assembly, and a whole row of screws in the auxiliary cabinet are transported to the outside at one time to complete the feeding.

[0024] The beneficial effects of the present invention are as follows:

[0025] By pouring the screws in, the screw sorting assembly drives the screw sorting position, so that the screws are changed from a disorderly arrangement to an equidistant longitudinal arrangement, and then the spacing of the screws is controlled by the guide groove, so that when the screw transport assembly transports the screws in the sub-cabinet, it can transport a whole row of screws in the sub-cabinet to the outside for feeding at one time, and can directly carry out subsequent processing, thereby improving work efficiency. The screw can be moved by the screw shifting assembly so that the screw can be moved to a horizontal position, making it easier for the screw sorting assembly to arrange and sort the screws. 3. By providing an inclined surface on the clamping teeth of the clamping structure, and the length of the clamping teeth gradually shortens from bottom to top, this arrangement makes it easy for the screw to slide to the top of the clamping arm, and the clamping is more stable and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a front view of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure in the frame A of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure in the frame B of the present invention;

[0031] Figure 5 A top view of the soft lever of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the screw handling assembly of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0034] Figure 8 It is a cross-sectional view of the guide groove of the present invention.

[0035] Description of Figure Numbers:

[0036] 100, cabinet; 110, auxiliary cabinet; 120, frame A; 130, frame B; 140, frame C; 150, guide groove; 200, screw rod assembly; 210, drive motor A; 220, sprocket; 230, chain; 240, assembly wheel; 250, screw rod assembly; 251, drive motor B; 252, gear; 253, gear rod; 254, connecting plate; 255, soft rod; 300, screw rod assembly; 310, drive motor C; 320, transmission wheel A; 330, conveyor belt A; 340, drive motor D; 35 0. Drive wheel B; 360. Conveyor belt B; 400. Screw handling assembly; 410. Drive motor E; 420. Drive wheel C; 430. Drive belt A; 440. Drive wheel D; 441. Limiting groove; 442. Limiting ring; 450. Threaded rod A; 451. Guide rod; 460. Installation box; 461. Drive motor F; 470. Support arm; 480. Installation plate; 490. Clamping structure; 491. Drive motor G; 492. Threaded rod B; 493. Screw sleeve; 494. Connecting rod; 495. Clamping arm; 496. Connecting shaft; 497. Clamping teeth.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The present invention provides an automatic feeding system and feeding method for screw feeding, wherein the screws are poured in, and the screw arrangement assembly 200 drives the screw arrangement position, so that the screws are changed from being randomly arranged to being evenly arranged longitudinally, and then the spacing of the screws is controlled by the guide groove 150, so that when the screw transport assembly 400 transports the screws in the auxiliary cabinet 110, a whole row of screws in the auxiliary cabinet 110 can be transported to the outside at one time for feeding, and subsequent processing can be directly carried out, thereby improving work efficiency;

[0042] See also Figure 1-Figure 8 ;

[0043] Example 1

[0044] A cabinet 100, wherein eight guide grooves 150 are provided at the lower part of the interior of the cabinet 100, and a curved surface is provided at the bottom end of the guide groove 150, one side of the cabinet 100 is connected to a sub-cabinet 110, a frame A120 and a frame B130 are connected to the outside of the cabinet 100 by bolts, and a frame C140 is connected to the outside of the sub-cabinet 110 by bolts;

[0045] A screw finishing assembly 200, wherein the driving portion of the screw finishing assembly 200 is installed in the frame A120, and the movable portion of the screw finishing assembly 200 is located inside the cabinet 100;

[0046] A screw conveying assembly 300, wherein the driving portion of the screw conveying assembly 300 is installed outside the cabinet 100 and the auxiliary cabinet 110, the movable portion of the screw conveying assembly 300 is located inside the cabinet 100 and the auxiliary cabinet 110, and the movable portion of the screw conveying assembly 300 is located below the screw finishing assembly 200;

[0047] The screw conveying assembly 400, the driving part of the screw conveying assembly 300 is installed in the frame C140, and the clamping part of the screw conveying assembly 300 is located inside the auxiliary cabinet 110;

[0048] During specific use, the screw is introduced into the cabinet 100, and the screw sorting assembly 200 in the cabinet 100 drives the screw sorting position, so that the screw changes from a disorderly arrangement to an equidistant longitudinal arrangement, and falls from the screw sorting assembly 200 into the guide groove 150, and the screw falls longitudinally onto the screw conveying assembly 300 through the guide groove 150. The screw conveying assembly 300 conveys the screw into the sub-cabinet 110, so that the screw is arranged neatly in the sub-cabinet 110, and the screw in the sub-cabinet 110 is transported by the screw transporting assembly 400, and a whole row of screws in the sub-cabinet 110 are transported to the outside at one time to complete the feeding.

[0049] Example 2

[0050] The screw sorting assembly 200 includes a driving motor A210, a sprocket 220, a chain 230, and a sorting wheel 240. The driving motor A210 is installed outside the frame A120. The output end of the driving motor A210 is fixedly connected to a sprocket 220 through an axis, and a sprocket 220 is transmission-connected to the other eight sprockets 220 through a chain 230. The sprocket 220 is rotationally connected in the frame A120 through an axis. The rear end of the sprocket 220 is fixedly connected to the sorting wheel 240 through an axis, and the spacing between two adjacent sorting wheels 240, the diameter of the screw and the width of the guide groove 150 are all the same. The eight guide grooves 150 are respectively located below the gaps between the nine sorting wheels 240. The sorting wheel 240 is rotationally connected in the cabinet 100 through an axis.

[0051] The screw sorting assembly 200 also includes a screw toggle assembly 250, which includes a driving motor B251, a gear 252, a toothed rod 253, a connecting plate 254 and a toggle soft rod 255. The driving motor B251 is connected to the outside of the frame B130 by bolts, and the output end of the driving motor B251 is fixedly connected to the gear 252 by an axis, and the top and bottom ends of the gear 252 are respectively meshed and connected with two toothed rods 253, and the two toothed rods 253 are rotationally symmetrical, and the two toothed rods 253 are both slidably connected in the frame B130, one end of the toothed rod 253 is fixedly connected to the connecting plate 254 by bolts, and the connecting plate 254 is located outside the frame B130, the connecting plate 254 is fixedly connected to six toggle soft rods 255, and the toggle soft rods 255 penetrate into the interior of the cabinet 100, and the twelve toggle soft rods 255 on the two connecting plates 254 are staggered in the same horizontal plane;

[0052] During specific use, the gear 252 is driven to rotate by driving the motor B251, and the gear 252 drives the gear rod 253 to slide on the frame B130, and the gear rod 253 drives the connecting plate 254 to move, and the connecting plate 254 drives the soft lever 255 to move, so as to continuously move the screw. At the same time, the driving motor A210 drives the sprocket 220 to rotate, and the sprocket 220 drives the chain 230 to rotate, thereby causing the other sprockets 220 to rotate, and all the sprockets 220 drive the sorting wheel 240 to rotate together. When the moved screw contacts the sorting wheel 240, the sorting wheel 240 gradually arranges the chaotically arranged screws, and then passes through the gaps between the sorting wheels 240, so that the screws fall into the guide groove 150.

[0053] Example 3

[0054] The screw conveying assembly 300 includes a driving motor C310, a transmission wheel A320, a conveyor belt A330, a driving motor D340, a transmission wheel B350 and a conveyor belt B360. The driving motor C310 is connected to the outside of the cabinet 100 by bolts. The output end of the driving motor C310 is fixedly connected to a transmission wheel A320 by an axis, and the outer sides of one transmission wheel A320 and the other seven transmission wheels A320 are transmission-connected to the conveyor belt A330. The driving motor D340 is connected to the outside of the auxiliary cabinet 110 by bolts. The output end of the driving motor D340 is fixedly connected to a transmission wheel B350 by an axis, and the outer sides of one transmission wheel B350 and the other three transmission wheels B350 are transmission-connected to the conveyor belt B360. The bottom ends of the eight guide grooves 150 are connected to the conveyor belt A330, and the longitudinal width of the cabinet 100 on both sides of the conveyor belt A330 is the same as the length of the screw.

[0055] During specific use, the screw rod falls onto the conveyor belt A330 through the guide groove 150, the driving motor C310 drives the transmission wheel A320 to rotate, the transmission wheel A320 drives the conveyor belt A330 to rotate, the conveyor belt A330 transports the screw rod from the cabinet 100 to the sub-cabinet 110, so that the screw rod is located on the conveyor belt B360, the driving motor D340 drives the transmission wheel B350 to rotate, the transmission wheel B350 drives the conveyor belt B360 to rotate, the conveyor belt B360 transports the screw rod to the sub-cabinet 110 and arranges it neatly to wait for clamping.

[0056] Example 4

[0057] The screw transport assembly 400 includes a drive motor E410, a transmission wheel C420, a transmission belt A430, a transmission wheel D440, a threaded rod A450, an installation box 460, a support arm 470, a mounting plate 480 and a clamping structure 490. The drive motor E410 is connected to the outside of the frame C140 by bolts, and the output end of the drive motor is fixedly connected to the transmission wheel C420 through an axis. The transmission wheel C420 is transmission-connected to the transmission wheel D440 through a transmission belt A430. The transmission wheel D440 0 is threadedly connected with the threaded rod A450 through an internal thread, the threaded rod A450 is slidably connected with the frame C140, the top of the threaded rod A450 is connected with the installation box 460 through bolts, the interior of the installation box 460 is connected with a driving motor F461 through bolts, the output end of the driving motor F461 is connected with one end of the support arm 470 through bolts, the other end of the support arm 470 is connected with the mounting plate 480 through bolts, and the bottom end of the mounting plate 480 is fixedly connected with ten clamping structures 490;

[0058] A limiting groove 441 is formed at the top of the transmission wheel D440, and a limiting ring 442 is rotatably connected inside the limiting groove 441. The top of the limiting ring 442 is connected to the inside of the frame C140 by bolts.

[0059] A cross-shaped guide rod 451 is slidably connected in the groove body at the bottom end of the screw rod, and the groove body is adapted to the cross-shaped guide rod 451, and the bottom end of the guide rod 451 is connected to the inside of the frame C140 by bolts;

[0060] During specific use, it is opened by driving motor E410, driving motor E410 drives transmission wheel C420 to rotate, transmission wheel C420 drives transmission wheel D440 to rotate through transmission belt A430, transmission wheel D440 drives threaded rod A450 to rotate through the limiting cooperation of limiting groove 441 and limiting ring 442, threaded rod A450 can only move up and down due to the limiting of cross guide rod 451, threaded rod A450 drives installation box 460 to move up and down, installation box 460 drives support arm 470 to move up and down, support arm 470 drives installation plate 480 to move up and down, installation plate 480 drives clamping structure 490 to clamp the screw, and then drives support arm 470 to rotate through the rotation of driving motor F461, and transports the screw to external equipment to complete feeding.

[0061] Example 5

[0062] The clamping structure 490 includes a driving motor G491, a threaded rod B492, a screw sleeve 493, a connecting rod 494, a clamping arm 495, a connecting shaft 496 and a clamping tooth 497. The ten driving motors G491 are connected to the bottom end of the mounting plate 480 by bolts. The output end of the driving motor G491 is fixedly connected to the threaded rod B492 by a coupling. The threaded rod B492 is threadedly connected to the screw sleeve 493. The two sides of the screw sleeve 493 are respectively connected to the two connecting rods 494 by shaft rotation. The other ends of the two connecting rods 494 are respectively connected to the upper parts of the two clamping arms 495 by shaft rotation. The middle parts of the two clamping arms 495 are connected by connecting shaft 496. The inner side of the lower part of the clamping arm 495 is welded with a clamping tooth 497.

[0063] The five clamping teeth 497 are arranged equidistantly in the vertical direction, the lengths of the five clamping teeth 497 are gradually shortened, and the longer clamping teeth 497 are located at the bottom of the clamping arm 495. The top surface of the clamping teeth 497 is provided with an inclined surface, and the height of the higher side of the inclined surface is twice the height of the lower side;

[0064] In specific use, the support arm 470 drives the clamping structure 490 to move downward, and the two clamping arms 495 separate the screw rods that are close together. The driving motor G491 drives the threaded rod B492 to rotate, and the threaded rod B492 drives the screw sleeve 493 to rotate. The screw sleeve 493 is restricted by the connecting rod 494 to move along the threaded rod B492. The screw sleeve 493 drives the connecting rod 494 to move, and the connecting rod 494 drives the upper parts of the two clamping arms 495 to move inward. The two clamping arms 495 rotate through the connecting shaft 496, so that the lower parts of the two clamping arms 495 are close to each other, and the clamping arms 495 drive the clamping teeth 497 to clamp the screw rod.

[0065] The clamping teeth 497 are provided with inclined surfaces, and the length of the clamping teeth 497 gradually shortens from bottom to top. This arrangement makes it easier for the screw rod to slide above the clamping arm 495, and the clamping is more stable.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic feeding system for screw feeding, characterized in that: include: A cabinet (100), wherein a plurality of guide grooves (150) are provided at a lower portion of the interior of the cabinet (100), and a curved surface is provided at the bottom end of the guide groove (150); one side of the cabinet (100) is connected to a sub-cabinet (110); a frame A (120) and a frame B (130) are installed on the outside of the cabinet (100); and a frame C (140) is installed on the outside of the sub-cabinet (110); A screw sorting assembly (200), wherein a driving portion of the screw sorting assembly (200) is mounted in a frame body A (120), a movable portion of the screw sorting assembly (200) is located inside a cabinet body (100), and the screw sorting assembly (200) comprises a driving motor A (210), a sprocket (220), a chain (230), and a sorting wheel (240), wherein the driving motor A (210) is mounted outside the frame body A (120), an output end of the driving motor A (210) is fixedly connected to a sprocket (220), and a A sprocket (220) is transmission-connected to another plurality of sprockets (220) via a chain (230); the sprocket (220) is rotationally connected in the frame A (120); the rear end of the sprocket (220) is fixedly connected to a sorting wheel (240); the spacing between two adjacent sorting wheels (240), the diameter of the screw rod and the width of the guide groove (150) are all the same; the plurality of guide grooves (150) are respectively located below the gaps between the plurality of sorting wheels (240); and the sorting wheel (240) is rotationally connected in the cabinet (100) via a shaft; A screw conveying assembly (300), wherein a driving portion of the screw conveying assembly (300) is mounted outside a cabinet (100) and a sub-cabinet (110), a movable portion of the screw conveying assembly (300) is located inside the cabinet (100) and the sub-cabinet (110), and the movable portion of the screw conveying assembly (300) is located below a screw sorting assembly (200), and the screw conveying assembly (300) comprises a driving motor C (310), a transmission wheel A (320), a conveyor belt A (330), a driving motor D (340), a transmission wheel B (350), and a conveyor belt B (360), wherein the driving motor C (310) is mounted outside the cabinet (100), and the driving motor C ( The output end of the guide groove (150) is fixedly connected to a transmission wheel A (320), and the outer sides of the transmission wheel A (320) and several other transmission wheels A (320) are in transmission connection with a conveyor belt A (330), the driving motor D (340) is installed outside the auxiliary cabinet (110), the output end of the driving motor D (340) is fixedly connected to a transmission wheel B (350), and the outer sides of the transmission wheel B (350) and several other transmission wheels B (350) are in transmission connection with a conveyor belt B (360), the bottom ends of several guide grooves (150) are in communication with the conveyor belt A (330), and the longitudinal width of the cabinets (100) on both sides of the conveyor belt A (330) is the same as the length of the screw; A screw conveying assembly (400), wherein a driving portion of the screw conveying assembly (300) is installed in a frame body C (140), and a clamping portion of the screw conveying assembly (300) is located inside a sub-cabinet (110). The screw conveying assembly (400) comprises a driving motor E (410), a transmission wheel C (420), a transmission belt A (430), a transmission wheel D (440), a threaded rod A (450), an installation box (460), a support arm (470), a mounting plate (480), and a clamping structure (490). The driving motor E (410) is installed outside the frame body C (140), and an output end of the driving motor is fixedly connected to the transmission wheel C (420). The transmission wheel C (420) is connected to the transmission wheel D (440) through a transmission belt A (430), the transmission wheel D (440) is threadedly connected to the threaded rod A (450) through an internal thread, the threaded rod A (450) is slidably connected to the frame C (140), the top end of the threaded rod A (450) is fixedly connected to the installation box (460), the interior of the installation box (460) is fixedly connected with a driving motor F (461), the output end of the driving motor F (461) is fixedly connected to one end of the support arm (470), the other end of the support arm (470) is fixedly connected to the installation plate (480), and the bottom end of the installation plate (480) is fixedly connected to a plurality of clamping structures (490).

2. The automatic feeding system for screw feeding according to claim 1, characterized in that: The screw arrangement assembly (200) further comprises a screw toggle assembly (250), wherein the screw toggle assembly (250) comprises a drive motor B (251), a gear (252), a toothed rod (253), a connecting plate (254) and a toggle soft rod (255), wherein the drive motor B (251) is mounted outside the frame B (130), wherein the output end of the drive motor B (251) is fixedly connected to the gear (252), and the top and bottom ends of the gear (252) are respectively meshed and connected to the two toothed rods (253), and The two gear rods (253) are rotationally symmetrical, and the two gear rods (253) are both slidably connected in the frame B (130). One end of the gear rod (253) is fixedly connected to a connecting plate (254), and the connecting plate (254) is located outside the frame B (130). The connecting plate (254) is fixedly connected to a plurality of toggle soft rods (255), and the toggle soft rods (255) penetrate into the interior of the cabinet (100), and the plurality of toggle soft rods (255) on the two connecting plates (254) are staggered in the same horizontal plane.

3. The automatic feeding system for screw feeding according to claim 1, characterized in that: A limiting groove (441) is provided at the top end of the transmission wheel D (440), the interior of the limiting groove (441) is rotatably connected to a limiting ring (442), and the top end of the limiting ring (442) is mounted inside the frame C (140).

4. The automatic feeding system for screw feeding according to claim 1, characterized in that: A cross-shaped guide rod (451) is slidably connected in the groove body at the bottom end of the screw rod, and the groove body is adapted to the cross-shaped guide rod (451), and the bottom end of the guide rod (451) is installed inside the frame C (140).

5. The automatic feeding system for screw feeding according to claim 1, characterized in that: The clamping structure (490) comprises a driving motor G (491), a threaded rod B (492), a screw sleeve (493), a connecting rod (494), a clamping arm (495), a connecting shaft (496) and a clamping tooth (497). A plurality of the driving motors G (491) are mounted on the bottom end of the mounting plate (480). The output end of the driving motor G (491) is fixedly connected to the threaded rod B (492). The threaded rod B (492) is threadedly connected to the screw sleeve (493). Two sides of the screw sleeve (493) are respectively rotatably connected to two connecting rods (494). The other ends of the two connecting rods (494) are respectively rotatably connected to the upper parts of the two clamping arms (495). The middle parts of the two clamping arms (495) are rotatably connected via a connecting shaft (496). The lower inner sides of the clamping arms (495) are provided with a clamping tooth (497).

6. The automatic feeding system for screw feeding according to claim 5, characterized in that: The plurality of clamping teeth (497) on one side are arranged equidistantly in the vertical direction, the lengths of the plurality of clamping teeth (497) on one side are gradually shortened, and the longer clamping teeth (497) are located at the bottom end of the clamping arm (495), and the top surface of the clamping teeth (497) is provided with an inclined surface, and the height of the higher side of the inclined surface is twice the height of the lower side.

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