Adjustable turntable screw feeder
By introducing adjustable-pitch feed rails and adjustable feed tail fins, combined with a U-shaped storage bin and a vibrating motor, the versatility and adjustment problems of traditional screw feeders are solved, improving feeding efficiency and stability while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional screw feeders suffer from poor versatility and high replacement costs due to the fixed spacing of the guide rails. Furthermore, the difficulty in adjusting the centered material feeding structure affects the stability and efficiency of the feeding process.
It adopts adjustable-spacing material conveying guide rails and adjustable material guide tail wings, combined with the arc-shaped inclined gravity concentration design of the U-shaped storage bin and the vibration motor driven by the vibration bracket, to optimize the material guiding structure and feeding process.
It improves the equipment's versatility for various screw specifications and the convenience of the material guiding structure, reduces screw jamming rate and changeover adjustment time, improves feeding efficiency, and reduces equipment downtime and maintenance costs.
Smart Images
Figure CN223989237U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product processing and assembly technology, and in particular to an adjustable rotary screw feeder. Background Technology
[0002] In automated assembly lines, the performance of screw feeders directly determines assembly efficiency and reliability. However, existing equipment has significant limitations in handling the increasingly diverse fastener feeding needs. Specifically, traditional feeding guides typically use a fixed spacing design. This design makes it difficult for the equipment to adapt to different screw sizes and cannot be flexibly adjusted according to screw dimensions, resulting in poor equipment versatility. When dealing with special-sized screws, frequent replacement or customization of dedicated guides is often required, which not only significantly increases changeover costs and downtime but also significantly reduces equipment production efficiency and increases maintenance costs. Furthermore, the guiding structure of traditional feeders generally suffers from difficulty in centering the screws when adjusting the guide spacing. The overall adjustment process is cumbersome and prone to deviations, leading to screw skewing or jamming when entering the guide, ultimately severely affecting feeding stability and overall efficiency. Utility Model Content
[0003] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide an adjustable rotary screw feeder, which solves the technical problems of poor versatility and high replacement cost caused by the fixed spacing of the guide rails in traditional screw feeders, as well as the jamming and low efficiency caused by the difficulty in adjusting the center of the guide structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This utility model discloses an adjustable rotary screw feeder, comprising a base plate and a U-shaped storage bin. The U-shaped storage bin is mounted on the base plate and is used to store screws to be fed. A feeding component and a rotary feeding component are respectively arranged on both sides of the U-shaped storage bin. The bottom of the U-shaped storage bin has an arc-shaped inclined surface, which is inclined towards the feeding component. The feeding component is used to pick up the screws to be fed from the U-shaped storage bin and transport them to the rotary feeding component through an adjustable-space conveyor track. A vibration bracket is also installed on the base plate, and the conveyor track is mounted on the vibration bracket. A vibration motor is installed on the vibration bracket to provide vibration feeding driving force for the conveyor track. An adjustable guide tail fin is installed at one end of the conveyor track near the feeding component.
[0006] As a preferred embodiment, the U-shaped storage hopper includes a first wall panel, a U-shaped arc plate, and a second wall panel. The first and second wall panels are vertically mounted on the base plate and arranged parallel to each other with a gap. The U-shaped arc plate is disposed between the first and second wall panels, with one end connected to the first wall panel and the other end connected to the second wall panel. The first wall panel, the U-shaped arc plate, and the second wall panel together form a storage cavity. The feeding component is rotatably mounted on the side of the second wall panel away from the first wall panel. The second wall panel has a feeding clearance hole adapted to the feeding component, which communicates with the storage cavity. The first wall panel has a conveying clearance through hole. The end of the conveying track away from the turntable distribution component extends through the conveying clearance through hole into the storage cavity. The adjustable guide tail wing is disposed at the feeding end of the feeding component. The vibration bracket is disposed between the turntable distribution component and the first wall panel.
[0007] As a preferred embodiment, the material conveying track includes a first guide strip and a second guide strip arranged in parallel with a gap. The first guide strip is mounted on the vibration bracket via a fixed connecting plate. The fixed connecting plate has two parallel waist-shaped through slots, which are perpendicular to the first guide strip. The second guide strip is adjustablely mounted on the waist-shaped through slots via a first fastener. A guide fixing plate is fixedly mounted on the end of the first guide strip away from the fixed connecting plate. The guide fixing plate is mounted on the side of the first guide strip closest to the second guide strip. Guide columns are also fixedly mounted on both sides of the guide fixing plate symmetrically. The end of the second guide strip closest to the feeding component is sleeved onto the guide column. The second guide strip has a plate clearance through slot and a column clearance through hole corresponding to the guide fixing plate and the guide column, respectively. The adjustable guide tail wing is sleeved onto the guide column via a connecting protrusion. The connecting protrusion protrudes from the adjustable guide tail wing close to the guide column. On one side of the base plate, the connecting protrusions are provided with receiving grooves near the sides of the first and second guide strips, respectively. A pre-tightened first elastic element is placed on the receiving groove. The first elastic element is sleeved on the guide rod. A limit screw is also installed at one end of the guide rod that passes through the rod clearance through hole. A connecting rod is also fixed on the side of the adjustable guide tail wing near the base plate. A connecting stud is protruding at one end of the connecting rod near the guide fixing plate. A clearance waist-shaped groove corresponding to the connecting stud is provided on the guide fixing plate. The connecting stud passes through the clearance waist-shaped groove and is connected to the guide fixing plate through a connecting screw. An adjustable distance limiting component is also provided on the side of the material conveying clearance through hole away from the first guide strip. The adjustable distance limiting component is installed on the first wall plate and is used to limit the adjustable lateral travel of the second guide strip. A rotation clearance arc groove corresponding to the connecting screw is provided on the side of the first and second guide strips near the U-shaped arc plate.
[0008] As a preferred embodiment, an elastic washer is provided between the connecting screw and the guide fixing plate. The elastic washer is sleeved on the connecting stud, with one side of the elastic washer abutting against the guide fixing plate and the other side abutting against the connecting screw. The first and second guide plates each have an inclined surface on the side away from the base plate, with the two inclined surfaces having the same inclination angle. The inclined surfaces are inclined towards the vibrating bracket. The adjustable guide tail wing includes a guide plate and fenders fixed on both sides of the guide plate. The connecting protrusion is installed on the side of the guide plate near the U-shaped arc plate. The side of the guide plate away from the connecting protrusion also has a guide inclined surface, which is inclined towards the side near the conveying clearance through hole.
[0009] As a preferred embodiment, the adjustable distance limiting component includes a limiting plate, a third elastic element, a first locking element, and a limiting stroke rod. The limiting stroke rod is mounted on the first wall panel via a fixing block. The limiting stroke rod is arranged horizontally and perpendicularly to the second guide plate strip. The limiting plate is sleeved on the limiting stroke rod. The third elastic element is sleeved on the limiting stroke rod. One end of the third elastic element is connected to the fixing block, and the other end abuts against the limiting plate. The first locking element is used to enable or disengage the connection between the limiting plate and the first wall panel. The limiting plate has a first locking groove, and the first locking element passes through the first locking groove and connects to the first wall panel.
[0010] As a preferred embodiment, the feeding component includes a feeding roller and a servo drive component. The feeding roller is rotatably mounted on the second wall plate. A plurality of limiting guide wheels are provided on the side of the second wall plate away from the first wall plate. The limiting guide wheels are mounted on the second wall plate via connecting shafts. The plurality of limiting guide wheels are equidistantly distributed along the outer periphery of the feeding roller and abut against the outer periphery wall of the feeding roller. The feeding roller also has circumferentially protruding roller drive teeth located between the limiting guide wheels and the second wall plate. The tooth thickness of the roller drive teeth is not greater than that of the limiting guide wheels. The vertical distance to the second wall panel, the servo drive component is set on the side of the vibration bracket and mounted on the base plate, the transmission end of the servo drive component is equipped with a transmission shaft, the transmission shaft passes through the first wall panel and the second wall panel in sequence and is equipped with a first drive gear that meshes with the roller drive gear, the inner circumferential side of the feeding roller facing the storage cavity is fixed with circumferentially equidistant picking hooks, the end of the material conveying track away from the turntable material distribution component passes through the feeding clearance hole and extends into the feeding roller, and the adjustable guide tail wing is set on the axis of the feeding roller.
[0011] As a preferred embodiment, an adjustable material brush capable of reciprocating oscillation is also provided above the material transfer track. The adjustable material brush is mounted between the first wall plate and the second wall plate via a mounting shaft. One end of the mounting shaft passes through the first wall plate and is equipped with a transmission gear. A swing lever is provided beside the transmission gear, and the swing lever is rotatably mounted on the first wall plate. A sector gear is mounted on the end of the swing lever near the transmission gear, and the sector gear meshes with the transmission gear. A transmission cam is also mounted on the transmission shaft, and the transmission cam is located between the first wall plate and the servo drive. Between the components, a limiting bracket is fixed on the side of the first wall panel away from the second wall panel. A top rod that can move longitudinally back and forth is installed on the limiting bracket. One end of the top rod passes through the bottom of the limiting bracket and is provided with a roller top connector adapted to the transmission cam. The other end is provided with a follower rod. The diameter of the follower rod is smaller than the diameter of the top rod. A second elastic member is sleeved on the follower rod. One end of the second elastic member is connected to the top rod, and the other end is connected to the top of the limiting bracket. One end of the follower rod passes through the top of the limiting bracket and is hinged to the end of the swing lever away from the sector gear.
[0012] As a preferred embodiment, the turntable material distribution component includes a fixed bracket, a rotary drive motor, and a material distribution turntable. The fixed bracket is installed on the end of the base plate away from the feeding component. A turntable shaft is rotatably mounted on the fixed bracket. Support columns are equidistantly arranged on the outer periphery of the turntable shaft. The support columns are fixedly mounted on the fixed bracket. A connecting horizontal plate is installed on the end of the support columns away from the fixed bracket. The connecting horizontal plate has an installation groove adapted to the material distribution turntable. The material distribution turntable is disposed in the installation groove. One end of the turntable shaft is connected to the material distribution turntable, and the other end passes through the... The fixed bracket is equipped with a first driven gear, and the rotary drive motor is mounted on the fixed bracket. The transmission end of the rotary drive motor is equipped with a second driving gear that meshes with the first driven gear. A sensing shaft is also rotatably mounted on the side of the fixed bracket away from the rotary drive motor. The sensing shaft is equipped with a second driven gear that meshes with the first driven gear. A sensing disk is also mounted on the sensing shaft. The sensing disk rotates synchronously with the sensing shaft. A sensor switch adapted to the sensing disk is also mounted on the fixed bracket. The sensing disk has a sensing notch.
[0013] As a preferred embodiment, the material distribution turntable has multiple equally spaced openings along its circumference. A support plate is also installed on the side of the fixed bracket away from the rotary drive motor. A sensing component is installed on the end of the support plate near the material distribution turntable. The sensing component includes a sensing transmitter and a sensing receiver, which are respectively disposed on both sides of the material distribution turntable. The transmitting end of the sensing transmitter, the receiving end of the sensing receiver, and the openings on the side of the material distribution turntable away from the feeding component are all located on the same straight line. A gear baffle is also installed on the side of the fixed bracket away from the support plate.
[0014] As a preferred embodiment, the system further includes a housing and a longitudinal clearance adjustment component. The housing is mounted on the base plate. The longitudinal clearance adjustment component includes a longitudinal adjustment plate, a fourth elastic element, a first guide limiting post, a second locking element, a connecting plate frame, a transverse pressure plate, a fifth elastic element, and a second guide limiting post. The first guide limiting post is longitudinally fixed above the material conveying clearance through hole via a connecting protrusion. The longitudinal adjustment plate passes through the first guide limiting post. The fourth elastic element is sleeved on the first guide limiting post, with one end connected to the longitudinal adjustment plate and the other end connected to the connecting protrusion. The second locking element is used to enable or disengage the connection between the longitudinal adjustment plate and the first wall panel. The system includes a second locking groove on the longitudinal adjusting plate, one end of the second locking member passing through the second locking groove and connected to the first wall panel, a connecting plate frame disposed on the side of the material conveying track near the turntable material distribution component and mounted on the machine body shell, a transverse pressure plate longitudinally slidably mounted on the connecting plate frame, a second guide limiting post longitudinally mounted on the transverse pressure plate, the transverse pressure plate being located between the longitudinal adjusting plate and the material conveying track, a fifth elastic member sleeved and mounted on the second guide limiting post, one end of the fifth elastic member being connected to the machine body shell and the other end being connected to the transverse pressure plate, and a column rod clearance hole corresponding to the second guide limiting post being provided on the machine body shell.
[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly improves the equipment's versatility for screws of various specifications and the convenience and accuracy of centering adjustment of the guiding structure by introducing adjustable spacing material conveying guide rails and adjustable material guiding tail wings. This effectively reduces screw jamming rate and changeover adjustment time, and improves feeding efficiency. Furthermore, combined with the arc-shaped inclined gravity collection design of the U-shaped storage bin and the vibration motor driven by the vibration bracket, it further optimizes the automatic screw collection efficiency and high-frequency stable feeding performance, while simultaneously reducing equipment downtime, maintenance costs, and vibration energy loss.
[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of an adjustable rotary screw feeder according to an embodiment of this application;
[0018] Figure 2 This is a schematic diagram of the internal structure of an adjustable rotary screw feeder according to an embodiment of this application;
[0019] Figure 3 This is a schematic diagram of the internal structure of an adjustable rotary screw feeder from another perspective of an embodiment of this application;
[0020] Figure 4 This is a partial structural diagram of an adjustable rotary screw feeder according to an embodiment of this application;
[0021] Figure 5 This is an exploded view of the material transfer track structure according to an embodiment of this application;
[0022] Figure 6 This is an exploded view of the material transfer track structure from another perspective of an embodiment of this application;
[0023] Figure 7 This is an exploded view of the turntable material distribution component structure according to an embodiment of this application;
[0024] Figure 8 This is an exploded view of the turntable material distribution component structure from another perspective of an embodiment of this application;
[0025] Figure 9 This is an embodiment of the present application. Figure 2 Enlarged view of point A.
[0026] Explanation of reference numerals in the attached figures:
[0027] 10. Base plate; 11. Vibration support; 12. Vibration motor; 13. Machine casing; 131. Column clearance hole;
[0028] 20. U-shaped storage bin; 21. Arc-shaped inclined surface; 22. First wall panel; 221. Material conveying clearance through hole; 23. U-shaped arc plate; 24. Second wall panel; 25. Storage cavity; 241. Loading clearance hole; 242. Limiting guide wheel; 243. Connecting shaft; 244. Limiting bracket;
[0029] 30. Feeding component; 31. Feeding roller; 311. Roller drive gear; 312. Picking hook; 32. Servo drive component; 33. Drive shaft; 331. First drive gear; 332. Drive cam;
[0030] 40. Turntable material distribution component; 41. Fixed bracket; 411. Support plate; 412. Gear shield; 42. Rotary drive motor; 421. Second drive gear; 43. Material distribution turntable; 431. Orifice; 44. Turntable shaft; 441. First driven gear; 45. Support column; 46. Connecting cross plate; 461. Mounting slot; 47. Sensing shaft; 471. Second driven gear; 472. Sensing turntable; 473. Inductive switch; 474. Sensing notch; 48. Sensing assembly; 481. Sensing transmitter; 482. Sensing receiver;
[0031] 50. Material transfer track; 51. First guide strip; 511. Guide fixing plate; 512. Guide column; 513. Limiting screw block; 514. Clearance slot; 52. Second guide strip; 521. Plate clearance through groove; 522. Column clearance through hole; 53. Fixed connecting plate; 531. Slotted through groove; 532. First fastener; 54. Rotation clearance arc groove; 55. Inclined surface;
[0032] 60. Adjustable guide tail fin; 61. Connecting protrusion; 611. Receiving groove; 62. First elastic element; 63. Connecting rod; 631. Connecting stud; 632. Connecting screw; 64. Elastic washer; 65. Guide plate; 651. Guide inclined surface; 66. Fender;
[0033] 70. Adjustable distance limiting component; 71. Limiting plate; 711. First locking anti-slip groove; 72. Third elastic element; 73. First locking element; 74. Limiting stroke rod; 75. Fixing block;
[0034] 80. Adjustable material brush; 81. Mounting shaft; 82. Transmission gear; 83. Swing lever; 831. Sector gear; 84. Push rod; 841. Roller top connector; 842. Follower rod; 843. Second elastic element;
[0035] 90. Longitudinal clearance adjustment component; 91. Longitudinal adjustment plate; 911. Second locking groove; 92. Fourth elastic element; 93. First guide limiting post; 94. Second locking element; 95. Connecting plate frame; 96. Transverse pressure plate; 97. Fifth elastic element; 98. Second guide limiting post; 99. Connecting protrusion. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0037] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0038] Please see Figures 1 to 9 This utility model provides an adjustable rotary screw feeder, including a base plate 10 and a U-shaped storage bin 20. The U-shaped storage bin 20 is mounted on the base plate 10 and is used to store screws to be fed. A feeding component 30 and a rotary feeding component 40 are respectively arranged on both sides of the U-shaped storage bin 20. This dual-sided layout optimizes space utilization and forms a continuous feeding flow. The bottom of the U-shaped storage bin 20 has an arc-shaped inclined surface 21 to guide the screws to concentrate at a lower point. The arc-shaped inclined surface 21 is inclined towards the feeding component 30, and gravity assists in automatically gathering the screws to the picking position of the feeding component 30. The feeding component 30 is used to pick up the screws to be fed from the U-shaped storage bin 20 and transport them to the rotary feeding component 40 via an adjustable-spaced conveyor track 50. The adjustable conveyor track 50 is designed to accommodate various screw specifications, improving versatility. A vibration bracket 11 is also installed on the base plate 10. The material transfer track 50 is installed on the vibration bracket 11 in a suspended installation manner, which reduces the loss of vibration transmission. A vibration motor 12 is installed on the vibration bracket 11. The vibration motor 12 serves as a high-frequency vibration source to drive the screw to feed continuously. That is, the vibration motor 12 is used to provide a continuous and stable vibration feeding driving force for the material transfer track 50. An adjustable guide tail 60 is installed at one end of the material transfer track 50 near the feeding component 30. The elastic adjustment design of the adjustable guide tail 60 allows for convenient centering correction when the gap of the material transfer track 50 is adjusted, effectively preventing the screw from entering the track skewed and significantly reducing the jamming rate.
[0039] In this embodiment, please refer to Figure 2 and Figure 3The U-shaped storage bin 20 includes a first wall panel 22, a U-shaped arc plate 23, and a second wall panel 24. The first wall panel 22 and the second wall panel 24 are vertically installed on the base plate 10 and are arranged parallel with a gap. The vertical installation structure forms a rigid frame to ensure the storage bin's resistance to deformation. The U-shaped arc plate 23 is located between the first wall panel 22 and the second wall panel 24. One end of the U-shaped arc plate 23 is connected to the first wall panel 22, and the other end is connected to the second wall panel 24. The U-shaped structure forms a guide surface, which promotes the automatic gathering of screws towards the central area. The first wall panel 22, the U-shaped arc plate 23, and the second wall panel 24 together form a storage cavity 25, providing a stable and sufficient storage space for the screws. The feeding component 30 is rotatably mounted on the side of the second wall plate 24 away from the first wall plate 22, facilitating flexible screw pickup. The second wall plate 24 has a feeding clearance hole 241 adapted to the feeding component 30, which communicates with the storage chamber 25. The design of the feeding clearance hole 241 avoids structural interference and ensures the feeding component 30 operates throughout its entire stroke. The first wall plate 22 has a conveying clearance through hole 221. The end of the conveying track 50 away from the turntable distribution component 40 extends through the conveying clearance through hole 221 into the storage chamber 25. This deep extension structure allows for direct screw insertion, shortening the feeding path. An adjustable guide tail wing 60 is located at the feeding end of the feeding component 30, ensuring smooth screw reception and entry into the conveying track 50, improving screw entry accuracy. A vibration bracket 11 is located between the turntable distribution component 40 and the first wall plate 22, providing a stable support foundation for the conveying track 50 and facilitating overall layout.
[0040] Please see Figures 4 to 6The material conveying track 50 includes a first guide strip 51 and a second guide strip 52 arranged in parallel with a gap, which together form a stable screw conveying channel. The first guide strip 51 is mounted on the vibration bracket 11 via a fixed connecting plate 53, ensuring the stability of the first guide strip 51. The fixed connecting plate 53 has two parallel waist-shaped through slots 531 arranged perpendicularly to the first guide strip 51, providing space for adjustment of the second guide strip 52. The second guide strip 52 is adjustablely mounted on the waist-shaped through slots 531 via a first fastener 532, allowing for flexible adjustment of the distance between the second guide strip 52 and the first guide strip 51, improving the equipment's versatility. A guide fixing plate 511 is fixedly provided at the end of the first guide strip 51 away from the fixed connecting plate 53, providing a positioning and installation base for the adjustable guide tail wing 60 and the second guide strip 52. A guide fixing plate 511 is installed on the side of the first guide strip 51 near the second guide strip 52. Guide rods 512 are also fixed on both sides of the guide fixing plate 511 to ensure the stability of the adjustable guide tail wing 60 and the second guide strip 52 during adjustment and movement. The end of the second guide plate near the feeding component 30 is sleeved on the guide rod 512, so that the second guide strip 52 can move stably along the guide rod 512. The second guide plate has a plate clearance through groove 521 and a rod clearance through hole 522 corresponding to the guide fixing plate 511 and the guide rod 512, respectively, to ensure the adaptability of the installation of the second guide strip 52. The adjustable guide tail wing 60 is sleeved on the guide rod 512 through the connecting protrusion 61 to realize the flexible installation and adjustment of the adjustable guide tail wing 60. The connecting protrusion 61 protrudes from the side of the adjustable guide tail wing 60 near the base plate 10. Each connecting protrusion 61 has a receiving groove 611 on its side near the first guide strip 51 and the second guide strip 52. A pre-tightened first elastic element 62 is placed on the receiving groove 611. When adjusting the distance between the first guide strip 51 and the second guide strip 52, this provides a centering clamping elastic auxiliary force for the centering calibration of the adjustable guide tail wing 60, ensuring the stability and centering of the adjusted guide tail wing 60. The first elastic element 62 is sleeved on the guide rod 512. A limit screw block 513 is also installed at one end of the guide rod 512 that passes through the rod avoidance through hole 522 to prevent the second guide strip 52 from dislodging from the guide rod 512.A connecting rod 63 is fixedly provided on the side of the adjustable guide tail wing 60 near the base plate 10. A connecting stud 631 protrudes from the end of the connecting rod 63 near the guide fixing plate 511. A clearance waist-shaped groove 514 corresponding to the connecting stud 631 is provided on the guide fixing plate 511 to provide space for the adjustment of the adjustable guide tail wing 60. The connecting stud 631 passes through the clearance waist-shaped groove 514 and is connected to the guide fixing plate 511 through the connecting screw 632 to achieve a stable connection between the adjustable guide tail wing 60 and the guide fixing plate 511. An adjustment distance limiting component 70 is also provided on the side of the material conveying clearance through hole 221 away from the first guide plate 51. The adjustment distance limiting component 70 is installed on the first wall plate 22 to limit the lateral adjustable stroke of the second guide plate 52. A rotation clearance arc groove 54 corresponding to the connecting screw 632 is provided on the side of the first guide plate 51 and the second guide plate 52 near the U-shaped arc plate 23 to avoid structural interference.
[0041] Specifically, an elastic washer 64 is provided between the connecting screw 632 and the guide fixing plate 511 to reduce wear between the connecting screw 632 and the guide fixing plate 511 and improve the connection stability. The elastic washer 64 is sleeved on the connecting stud 631. One side of the elastic washer 64 abuts against the guide fixing plate 511 and the other side abuts against the connecting screw 632. The first guide plate 51 and the second guide plate 52 are both provided with inclined surfaces 55 on the side away from the bottom plate 10. The two inclined surfaces 55 have the same inclination angle and are inclined towards the vibrating bracket 11, so that the screw is more stable and smooth during the conveying process and reduces jamming. The adjustable guide tail wing 60 includes a guide plate 65 and fenders 66 fixed symmetrically on both sides of the guide plate 65. The fenders 66 are used to receive screws and provide stable guidance for them. A connecting protrusion 61 is installed on the side of the guide plate 65 near the U-shaped arc plate 23. The guide plate 65 also has a guide inclined surface 651 on the side away from the connecting protrusion 61. The guide inclined surface 651 is inclined towards the side near the conveying clearance through hole 221, further optimizing the guiding effect of the screw and ensuring that it smoothly enters the conveying track 50. Especially under high-cycle operation, it achieves effective guidance, making it less likely for the screw head to collide and bounce back with the edge of the guide opening of the conveying track 50, significantly reducing the risk of jamming and improving the overall feeding speed.
[0042] Please see Figure 9The adjustable distance limiting component 70 includes a limiting plate 71, a third elastic element 72, a first locking element 73, and a limiting stroke rod 74. The limiting stroke rod 74 is installed on the first wall panel 22 through a fixing block 75, providing stable support and a moving track for the limiting plate 71. The limiting stroke rod 74 is arranged horizontally and vertically with the second guide plate strip 52. The limiting plate 71 is sleeved on the limiting stroke rod 74 to realize flexible movement and positioning of the limiting plate 71. The third elastic element 72 is sleeved on the limiting stroke rod 74. One end of the third elastic element 72 is connected to the fixing block 75, and the other end abuts against the limiting plate 71. The first locking element 73 is used to enable or disengage the connection between the limiting plate 71 and the first wall panel 22 to realize flexible locking and unlocking of the position of the limiting plate 71. A first locking groove 711 is provided on the limiting plate 71, and the first locking element 73 passes through the first locking groove 711 and connects to the first wall panel 22.
[0043] Further, please refer to Figure 2 and Figure 3The feeding component 30 includes a feeding roller 31 and a servo drive component 32. The feeding roller 31 is rotatably mounted on the second wall plate 24. Multiple limiting guide wheels 242 are provided on the side of the second wall plate 24 away from the first wall plate 22. The limiting guide wheels 242 are mounted on the second wall plate 24 via a connecting shaft 243, providing stable limiting and guidance for the feeding roller 31 and preventing its deviation. The multiple limiting guide wheels 242 are equidistantly distributed along the outer periphery of the feeding roller 31 and abut against the outer periphery of the feeding roller 31, ensuring the stability of the feeding roller 31 during rotation and reducing swaying. The feeding roller 31 is also provided with roller drive teeth 311 protruding circumferentially. The roller drive teeth 311 are located between the limiting guide wheel 242 and the second wall plate 24. The tooth thickness of the roller drive teeth 311 is not greater than the vertical distance from the limiting guide wheel 242 to the second wall plate 24, ensuring that the roller drive teeth 311 will not interfere with the limiting guide wheel 242 or the second wall plate 24 during rotation. The servo drive component 32 is set on the side of the vibration bracket 11 and mounted on the base plate 10, providing a stable rotational driving force for the feeding roller 31. The transmission end of the servo drive component 32 is equipped with a transmission shaft 33. The transmission shaft 33 passes through the first wall plate 22 and the second wall plate 24 in sequence and is equipped with a first drive gear 331 that meshes with the roller drive teeth 311, realizing the power transmission between the servo drive component 32 and the feeding roller 31, ensuring the precise rotation of the feeding roller 31. The inner circumferential side of the feeding roller 31 facing the storage cavity 25 is fixed with circumferentially equidistant picking hooks 312 for picking up screws from the storage cavity 25 to realize the feeding function. The end of the conveying track 50 away from the turntable distribution component 40 passes through the feeding clearance hole 241 and extends into the feeding roller 31 to ensure that the picked screws can smoothly enter the conveying track 50 for conveying. The adjustable guide tail 60 is set on the axis of the feeding roller 31 to optimize the guiding effect of the screws and ensure that they smoothly enter the conveying guide, reducing jamming or deflection.
[0044] An adjustable material brush 80, capable of reciprocating oscillation, is also installed above the material conveying track 50. This brush is used to clean messy screws on the track 50, adjust their arrangement, and ensure smooth material conveying. The distance between the adjustable material brush 80 and the material conveying track 50 is adjustable. The adjustable material brush 80 is mounted between the first wall plate 22 and the second wall plate 24 via a mounting shaft 81, providing a stable mounting base and oscillation support. One end of the mounting shaft 81 passes through the first wall plate 22 and is fitted with a transmission gear 82. The transmission gear 82 transmits power to the adjustable material brush 80, enabling its oscillation function. A oscillating lever 83 is mounted beside the transmission gear 82, rotatably mounted on the first wall plate 22. A sector gear 831 is mounted on the end of the oscillating lever 83 closest to the transmission gear 82. The sector gear 831 meshes with the transmission gear 82, thus converting the oscillation of the oscillating lever 83 into the rotation of the transmission gear 82, thereby driving the adjustable material brush 80 to oscillate. A transmission cam 332 is also installed on the transmission shaft 33. The transmission cam 332 is located between the first wall plate 22 and the servo drive component 32, which is a reasonable layout that saves space and facilitates power transmission. A limiting bracket 244 is fixed on the side of the first wall plate 22 away from the second wall plate 24. A push rod 84 that can move longitudinally back and forth is installed on the limiting bracket 244, which converts the rotational motion of the transmission cam 332 into the linear reciprocating motion of the push rod 84. One end of the push rod 84 passes through the bottom of the limiting bracket 244 and is provided with a roller top connector 841 that is adapted to the transmission cam 332. The other end is provided with a follower rod 842. The diameter of the follower rod 842 is smaller than the diameter of the push rod 84. A second spring is sleeved on the follower rod 842. The second elastic element 843 is connected at one end to the push rod 84 and at the other end to the top of the limiting bracket 244. It provides preload to the push rod 84 to ensure that it always keeps in contact with the transmission cam 332 and also plays a buffering role. One end of the follower rod 842 passes through the top of the limiting bracket 244 and is hinged to the end of the swing lever 83 away from the sector gear 831, realizing the power transmission between the push rod 84 and the swing lever 83 and ensuring that the swing lever 83 swings with the movement of the push rod 84.
[0045] Please see Figure 7 and Figure 8The turntable material distribution component 40 includes a fixed bracket 41, a rotary drive motor 42, and a material distribution turntable 43. The fixed bracket 41 is installed on the end of the base plate 10 away from the feeding component 30, providing a stable mounting base for the material distribution turntable 43 and the rotary drive motor 42. A turntable shaft 44 is rotatably mounted on the fixed bracket 41. Support columns 45 are equidistantly arranged on the outer periphery of the turntable shaft 44. The support columns 45 are fixedly mounted on the fixed bracket 41. A connecting horizontal plate 46 is installed on the end of the support columns 45 away from the fixed bracket 41. The connecting horizontal plate 46 has a mounting groove 461 that matches the material distribution turntable 43, providing precise installation positioning for the material distribution turntable 43. The material distribution turntable 43 is mounted on the mounting slot 461. One end of the turntable shaft 44 is connected to the material distribution turntable 43, and the other end passes through the fixed bracket 41 and is equipped with a first driven gear 441. The rotary drive motor 42 is mounted on the fixed bracket 41. The transmission end of the rotary drive motor 42 is equipped with a second driving gear 421 that meshes with the first driven gear 441, so that the power of the rotary drive motor 42 is transmitted to the material distribution turntable 43, driving the material distribution turntable 43 to rotate. A sensing shaft 47 is rotatably mounted on the side of the fixed bracket 41 away from the rotary drive motor 42. A second driven gear 471, which meshes with the first driven gear 441, is mounted on the sensing shaft 47, so that the sensing shaft 47 rotates synchronously with the dispensing turntable 43. An induction turntable 472 is also mounted on the sensing shaft 47, and the induction turntable 472 rotates synchronously with the sensing shaft 47. An induction switch 473 adapted to the induction turntable 472 is also mounted on the fixed bracket 41. An induction notch 474 is provided on the induction turntable 472. By detecting the induction notch 474 on the induction turntable 472, the position of the dispensing turntable 43 can be precisely controlled.
[0046] Furthermore, the material distribution turntable 43 has multiple equally spaced holes 431 along its circumference to accommodate and separate screws one by one, thus achieving the material distribution function. A support plate 411 is also installed on the side of the fixed bracket 41 away from the rotary drive motor 42. A sensing component 48 is installed on the end of the support plate 411 near the material distribution turntable 43. The sensing component 48 includes a sensing transmitter 481 and a sensing receiver 482. By transmitting and receiving signals, it detects the screws inside the holes 431 on the material distribution turntable 43. The sensing transmitter 481 and the sensing receiver 482 are respectively located on both sides of the material distribution turntable 43. The transmitting end of the sensing transmitter, the receiving end of the sensing receiver 482, and the holes 431 on the side of the material distribution turntable 43 away from the feeding component 30 are all on the same straight line, ensuring that the signal can accurately pass through the holes 431 for effective detection. A gear baffle 412 is also installed on the side of the fixed bracket 41 away from the support plate 411 to prevent foreign objects from entering and improve the safety and operational stability of the equipment.
[0047] Please see Figure 1 , Figure 2 and Figure 9 The adjustable rotary screw feeder also includes a housing 13 and a longitudinal gap adjustment component 90. The housing 13 is mounted on the base plate 10 to protect the internal components of the feeder and ensure the stability of the overall structure. The longitudinal gap adjustment component 90 includes a longitudinal adjustment plate 91, a fourth elastic element 92, a first guide limit post 93, a second locking element 94, a connecting plate frame 95, a transverse pressure plate 96, a fifth elastic element 97, and a second guide limit post 98. The first guide limit post 93 is connected to the longitudinal gap adjustment component 99. The longitudinal adjusting plate 91 is fixed above the material conveying clearance through hole 221 and passes through the first guide limiting post 93 to achieve stable longitudinal movement of the longitudinal adjusting plate 91. The fourth elastic member 92 is sleeved on the first guide limiting post 93. One end of the fourth elastic member 92 is connected to the longitudinal adjusting plate 91 and the other end is connected to the connecting protrusion 99. The second locking member 94 is used to enable or deactivate the connection between the longitudinal adjusting plate 91 and the first wall plate 22, so as to realize flexible locking and unlocking of the position of the longitudinal adjusting plate 91 for easy adjustment. A second locking groove 911 is provided on the longitudinal adjusting plate 91. One end of the second locking member 94 passes through the second locking groove 911 and connects to the first wall plate 22. The connecting plate frame 95 is set on the side of the material conveying track 50 near the turntable material distribution component 40 and is installed on the outer shell 13 of the machine body. The transverse pressure plate 96 is longitudinally slidably installed on the connecting plate frame 95 to realize the stable longitudinal movement of the transverse pressure plate 96. The longitudinal adjusting plate 91 is used to abut against the transverse pressure plate 96 to adjust the distance between the transverse pressure plate 96 and the material conveying track 50 to meet the feeding needs of screws of different specifications. The second guide limit post 98 is longitudinally installed on the transverse pressure plate 96 to provide guidance for the longitudinal movement of the transverse pressure plate 96 and ensure its accuracy. The transverse pressure plate 96 is located between the longitudinal adjustment plate 91 and the material transfer track 50. The fifth elastic element 97 is sleeved on the second guide limit post 98. One end of the fifth elastic element 97 is connected to the machine body shell 13, and the other end is connected to the transverse pressure plate 96. The machine body shell 13 is provided with a column rod avoidance hole 131 corresponding to the second guide limit post 98 to avoid interference with the machine body shell 13.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable carousel screw feeder, characterized by: The application relates to a screw feeding device, which comprises a bottom plate (10) and a U-shaped storage bin (20) installed on the bottom plate (10) and used for storing screws to be fed, wherein the U-shaped storage bin (20) is provided with a feeding component (30) and a rotary disc distributing component (40) on two sides respectively, the bottom of the U-shaped storage bin (20) is provided with an arc-shaped inclined surface (21) which is inclined towards the feeding component (30), the feeding component (30) is used for picking up the screws to be fed in the U-shaped storage bin (20) and conveying the screws to the rotary disc distributing component (40) through a spacing-adjustable conveying track (50), a vibrating support (11) is further installed on the bottom plate (10), the conveying track (50) is installed on the vibrating support (11), a vibrating motor (12) is installed on the vibrating support (11) and used for providing a vibrating feeding driving force for the conveying track (50), and an adjustable guide tail wing (60) is installed on one end of the conveying track (50) close to the feeding component (30).
2. The adjustable turntable screw feeder of claim 1, wherein: The U-shaped storage bin (20) comprises a first wall plate (22), a U-shaped arc plate (23) and a second wall plate (24), the first wall plate (22) and the second wall plate (24) are vertically installed on the bottom plate (10) and arranged in parallel with a gap, the U-shaped arc plate (23) is arranged between the first wall plate (22) and the second wall plate (24), one end of the U-shaped arc plate (23) is connected with the first wall plate (22) and the other end is connected with the second wall plate (24), the first wall plate (22), the U-shaped arc plate (23) and the second wall plate (24) jointly form a storage cavity (25), the feeding component (30) is rotationally installed on one side of the second wall plate (24) away from the first wall plate (22), the second wall plate (24) is provided with a feeding avoiding hole (241) matched with the feeding component (30), the feeding avoiding hole (241) is communicated with the storage cavity (25), the first wall plate (22) is provided with a conveying avoiding through hole (221), one end of the conveying track (50) away from the rotary disc distributing component (40) extends into the storage cavity (25) through the conveying avoiding through hole (221), the adjustable guide tail wing (60) is arranged on a feeding end of the feeding component (30), and the vibrating support (11) is arranged between the rotary disc distributing component (40) and the first wall plate (22).
3. The adjustable turntable screw feeder of claim 2, wherein: The material conveying track (50) comprises a first material guide strip (51) and a second material guide strip (52) arranged in parallel with a gap, the first material guide strip (51) is installed on the vibrating support (11) through a fixed connecting plate (53), two waist-shaped through grooves (531) are arranged in parallel on the fixed connecting plate (53), the waist-shaped through grooves (531) are vertically arranged with the first material guide strip (51), the second material guide strip (52) is adjustably installed on the waist-shaped through grooves (531) through a first fastener (532), one end of the first material guide strip (51) away from the fixed connecting plate (53) is fixedly provided with a guide fixed plate (511), the guide fixed plate (511) is installed on one side of the first material guide strip (51) close to the second material guide strip (52), guide column rods (512) are further fixedly arranged on the two sides of the guide fixed plate (511), one end of the second material guide strip close to the feeding component (30) is sleeved and installed on the guide column rods (512), the second material guide strip is provided with a plate block avoiding through groove (521) and a column rod avoiding through hole (522) corresponding to the guide fixed plate (511) and the guide column rods (512) respectively, the adjustable material guide tail wing (60) is sleeved and installed on the guide column rods (512) through a connecting protrusion (61), the connecting protrusion (61) is protruded on one side of the adjustable material guide tail wing (60) close to the bottom plate (10), the connecting protrusion (61) is provided with a containing groove (611) close to the side of the first material guide strip (51) and the second material guide strip (52) respectively, a pre-tightened first elastic element (62) is arranged on the containing groove (611) and sleeved and installed on the guide column rods (512), one end of the guide column rods (512) penetrating through the column rod avoiding through hole (522) is further provided with a limiting screw block (513), one side of the adjustable material guide tail wing (60) close to the bottom plate (10) is further fixedly provided with a connecting column rod (63), a connecting screw column (631) is protruded on one end of the connecting column rod (63) close to the guide fixed plate (511), a avoiding waist-shaped groove (514) corresponding to the connecting screw column (631) is arranged on the guide fixed plate (511), the connecting screw column (631) penetrates through the avoiding waist-shaped groove (514) and is connected with the guide fixed plate (511) through a connecting screw element (632), a distance limiting component (70) is further arranged on one side of the first wall plate (22) away from the first material guide strip (51), the distance limiting component (70) is used for limiting the transverse movement adjustable stroke of the second material guide strip (52), the first material guide strip (51) and the second material guide strip (52) are provided with a rotating avoiding arc groove (54) corresponding to the connecting screw element (632) on one side close to the U-shaped arc plate (23).
4. The adjustable turntable screw feeder of claim 3, wherein: The connecting screw piece (632) and the guide fixed plate (511) are further provided with an elastic washer (64), the elastic washer (64) is sleeved and installed on the connecting stud (631), one side of the elastic washer (64) abuts against the guide fixed plate (511), and the other side abuts against the connecting screw piece (632), the first material guide plate strip (51) and the second material guide plate strip (52) are provided with inclined surfaces (55) on the sides away from the bottom plate (10), the inclined surfaces (55) of the two inclined surfaces (55) have the same inclination angle, the inclined surfaces (55) are inclined towards the direction close to the vibration support (11), the adjustable material guide tail wing (60) comprises a material guide plate block (65) and wing plates (66) fixed on the symmetrical two sides of the material guide plate block (65), the connecting protrusion (61) is installed on the side of the material guide plate block (65) close to the U-shaped arc plate (23), the material guide plate block (65) is further provided with a material guide inclined surface (651) on the side away from the connecting protrusion (61), and the material guide inclined surface (651) is inclined towards the side close to the material conveying avoidance through hole (221).
5. The adjustable turntable screw feeder of claim 3, wherein: The distance adjusting limiting member (70) comprises a limiting plate (71), a third elastic element (72), a first locking element (73) and a limiting stroke rod (74), the limiting stroke rod (74) is installed on the first wall plate (22) through a fixed block (75), the limiting stroke rod (74) is transversely perpendicular to the second material guide plate strip (52), the limiting plate (71) is sleeved and installed on the limiting stroke rod (74), the third elastic element (72) is sleeved and installed on the limiting stroke rod (74), one end of the third elastic element (72) is connected with the fixed block (75), and the other end abuts against the limiting plate (71), the first locking element (73) is used for enabling or releasing the connecting relationship between the limiting plate (71) and the first wall plate (22), the first locking element (73) is connected with the first wall plate (22) through the first locking sliding groove (711) formed in the limiting plate (71).
6. The adjustable turntable screw feeder of claim 2, wherein: The feeding member (30) comprises a feeding roller (31) and a servo driving part (32), the feeding roller (31) is rotationally installed on the second wall plate (24), a plurality of limiting guide roller members (242) are arranged on the side of the second wall plate (24) away from the first wall plate (22), the limiting guide roller members (242) are installed on the second wall plate (24) through connecting shafts (243), a plurality of the limiting guide roller members (242) are equidistantly distributed along the outer circumferential side of the feeding roller (31) and abut against the outer circumferential wall of the feeding roller (31), the feeding roller (31) is further circumferentially provided with roller transmission teeth (311), the roller transmission teeth (311) are located between the limiting guide roller members (242) and the second wall plate (24), the tooth thickness of the roller transmission teeth (311) is not greater than the vertical distance from the limiting guide roller members (242) to the second wall plate (24), the servo driving part (32) is arranged beside the vibration support (11) and is installed on the bottom plate (10), a transmission rotating shaft (33) is installed on the transmission end of the servo driving part (32), the transmission rotating shaft (33) sequentially penetrates through the first wall plate (22) and the second wall plate (24) and is installed with a first driving gear (331) which is meshingly connected with the roller transmission teeth (311), the inner circumferential side of one end of the feeding roller (31) towards the storage cavity (25) is fixedly provided with circumferentially equidistantly distributed material taking hooks (312), one end of the material conveying track (50) away from the rotary disc material distributing member (40) penetrates through the feeding avoiding hole (241) and extends into the feeding roller (31), and the adjustable material guiding tail wing (60) is arranged on the axis of the feeding roller (31).
7. The adjustable turntable screw feeder of claim 6, wherein: The material conveying track (50) is further provided with a reciprocating swing adjustable material brush (80), which is installed between the first wall plate (22) and the second wall plate (24) through a mounting rotating shaft (81), one end of the mounting rotating shaft (81) penetrates through the first wall plate (22) and is installed with a transmission gear (82), a swing lever piece (83) is provided beside the transmission gear (82), the swing lever piece (83) is rotationally installed on the first wall plate (22), a sector gear piece (831) is installed on one end of the swing lever piece (83) close to the transmission gear (82), the sector gear piece (831) is meshed and connected with the transmission gear (82), a transmission cam (332) is further installed on the transmission rotating shaft (33), the transmission cam (332) is arranged between the first wall plate (22) and the servo driving component (32), a limiting support (244) is fixedly arranged on the side of the first wall plate (22) away from the second wall plate (24), a vertically reciprocating movable top rod (84) is installed on the limiting support (244), one end of the top rod (84) penetrates through the bottom of the limiting support (244) and is provided with a roller top contact piece (841) matched with the transmission cam (332), the other end is provided with a follower rod (842), the diameter of the follower rod (842) is smaller than that of the top rod (84), a second elastic piece (843) is sleeved on the follower rod (842), one end of the second elastic piece (843) is connected with the top rod (84), and the other end is connected with the top of the limiting support (244), one end of the follower rod (842) penetrates through the top of the limiting support (244) and is hinged with one end of the swing lever piece (83) away from the sector gear piece (831).
8. The adjustable turntable screw feeder of claim 1, wherein: The rotating disc distributing member (40) comprises a fixed support (41), a rotating drive motor (42) and a distributing rotating disc (43), the fixed support (41) is installed at one end of the bottom plate (10) away from the feeding member (30), a rotating disc rotating shaft (44) is rotatably installed on the fixed support (41), equidistant support column rods (45) are arranged on the outer periphery of the rotating disc rotating shaft (44), the support column rods (45) are fixedly installed on the fixed support (41), a connecting horizontal plate (46) is installed at one end of the support column rods (45) away from the fixed support (41), the connecting horizontal plate (46) is provided with an installation groove (461) matched with the distributing rotating disc (43), the distributing rotating disc (43) is arranged on the installation groove (461), one end of the rotating disc rotating shaft (44) is connected with the distributing rotating disc (43), and the other end of the rotating disc rotating shaft (44) penetrates through the fixed support (41) and is provided with a first driven gear (441); the rotating drive motor (42) is installed on the fixed support (41), a second driving gear (421) engaged with the first driven gear (441) is installed at the transmission end of the rotating drive motor (42), a sensing rotating shaft (47) is also rotatably installed on the side of the fixed support (41) away from the rotating drive motor (42), a second driven gear (471) engaged with the first driven gear (441) is installed on the sensing rotating shaft (47), an induction rotating disc (472) is also installed on the sensing rotating shaft (47), the induction rotating disc (472) rotates synchronously with the sensing rotating shaft (47), an induction switch (473) matched with the induction rotating disc (472) is also installed on the fixed support (41), and an induction gap (474) is formed in the induction rotating disc (472).
9. The adjustable turntable screw feeder of claim 8, wherein: A plurality of equidistantly distributed holes (431) are formed in the circumferential direction of the distributing rotating disc (43), a support plate (411) is also installed on the side of the fixed support (41) away from the rotating drive motor (42), a sensing assembly (48) is installed at one end of the support plate (411) close to the distributing rotating disc (43), the sensing assembly (48) comprises a sensing emitter (481) and a sensing receiver (482), the sensing emitter (481) and the sensing receiver (482) are arranged on the two sides of the distributing rotating disc (43), respectively, the emitting end of the sensing emitter, the receiving end of the sensing receiver (482) and the holes (431) on the side of the distributing rotating disc (43) away from the feeding member (30) are located on the same straight line, and a gear shielding plate (412) is also installed on the side of the fixed support (41) away from the support plate (411).
10. The adjustable turntable screw feeder of claim 2, wherein: Further include the machine body shell (13) and longitudinal gap adjusting member (90), the machine body shell (13) is installed on the bottom plate (10), the longitudinal gap adjusting member (90) includes longitudinal adjusting plate (91), fourth elastic element (92), first guide limiting column (93), second locking element (94), connecting plate frame (95), transverse pressing plate (96), fifth elastic element (97) and second guide limiting column (98), the first guide limiting column (93) is longitudinally fixed on the material feeding avoidance through hole (221) by connecting convex piece (99), the longitudinal adjusting plate (91) is threaded on the first guide limiting column (93), the fourth elastic element (92) is installed on the first guide limiting column (93), one end of the fourth elastic element (92) is connected with the longitudinal adjusting plate (91), the other end is connected with the connecting convex piece (99), the second locking element (94) is used to enable or release the connection relationship between the longitudinal adjusting plate (91) and the first wall plate (22), the longitudinal adjusting plate (91) is provided with second locking sliding groove (911), one end of the second locking element (94) is connected with the first wall plate (22) through the second locking sliding groove (911), the connecting plate frame (95) is arranged on the one end side of the material conveying track (50) close to the rotary disc material distribution member (40) and is installed on the machine body shell (13), the transverse pressing plate (96) is longitudinally slidingly installed on the connecting plate frame (95), the second guide limiting column (98) is longitudinally installed on the transverse pressing plate (96), the transverse pressing plate (96) is located between the longitudinal adjusting plate (91) and the material conveying track (50), the fifth elastic element (97) is installed on the second guide limiting column (98), one end of the fifth elastic element (97) is connected with the machine body shell (13), the other end is connected with the transverse pressing plate (96), the machine body shell (13) is provided with columnar hole avoiding hole (131) corresponding to the second guide limiting column (98).