An automatic feeding device

Abstract

The application discloses an automatic feeding device, relates to the field of nut feeding, and comprises a transfer box, a vibrating disc and a feeding pipe, the feeding pipe is vertically arranged above the vibrating disc, further comprises a transfer mechanism for transferring the nut to the end of the feeding pipe away from the vibrating disc; a correction assembly for correcting the nut for transmission; a rotating disc is rotatably arranged between the feeding pipe and the vibrating disc, and the rotating shaft axis of the rotating disc is vertically arranged; a plurality of limiting holes are arranged through the rotating disc, the sleeve of the nut is arranged through the limiting holes, the diameter of the limiting hole is smaller than the outer diameter of the nut flange; a rotating mechanism for driving the limiting hole to align the nut; a detection mechanism for detecting the flatness of the flange of the nut near the sleeve; a discharging mechanism for classifying and discharging the nut on the rotating disc; a second conveying pipe for conveying the qualified nut on the rotating disc to the vibrating disc. The application has the effect of improving the qualified product yield of the tapping machine.

Description

Technical Field

[0001] This application relates to the field of rivet nut feeding technology, and in particular to an automatic feeding device. Background Technology

[0002] Reference Figure 1 During the battery pack packaging process, rivet nuts 27 are used to achieve sealing. These rivet nuts 27 require processing including cold heading, tapping, degreasing, and electroplating. The cold-headed rivet nut 27 comprises a sleeve 271 and a flange 272, which is coaxially and integrally formed on one end of the sleeve 271. After cold heading, the rivet nuts 27 are stacked in a transfer box, which transports them to a tapping machine for tapping.

[0003] Since the rivet nuts 27 are small in size and numerous, in order to improve space utilization, before tapping, the workers will lift multiple rivet nuts 27 to be tapped in the air from the transfer box, and then transport the rivet nuts 27 downward through the material conveying pipe, so that the rivet nuts 27 slide down and pile up in the middle of the vibratory plate; as the vibratory plate vibrates, multiple rivet nuts 27 to be tapped are arranged in an orderly manner and move towards the tapping machine, and the tapping machine performs tapping treatment on the inner wall of the sleeve 271.

[0004] Regarding the aforementioned technologies, since the flange protrudes from the arc-shaped peripheral wall of the sleeve, during the process of the rivet nut sliding towards the vibratory plate under the guidance of the feed pipe, adjacent rivet nuts will collide, causing uneven force on the flange of the rivet nut, making it prone to deformation, resulting in an uneven end face of the flange near the sleeve. The tapping machine processes rivet nuts with uneven flanges, which not only affects the output rate of qualified products of the tapping machine, but also wastes the energy of the tapping machine. Summary of the Invention

[0005] In order to improve the problem of low yield of qualified products of tapping machine caused by uneven flange of rivet nut fed into tapping machine, this application provides an automatic feeding device.

[0006] The automatic feeding device provided in this application adopts the following technical solution:

[0007] An automatic feeding device includes a transfer box, a vibratory feeder, and a conveying pipe, wherein the conveying pipe is vertically arranged above the vibratory feeder, and further includes...

[0008] A transfer mechanism is used to lift and transfer the rivet nuts in the transfer box to the end of the feed pipe away from the vibratory plate.

[0009] A calibration component is located at one end of the feed pipe near the vibratory plate and is used to calibrate the rivet nut for directional transmission.

[0010] A rotating disk is rotatably disposed between the conveying pipe and the vibrating disk, and the axis of rotation of the rotating disk is vertically arranged;

[0011] Multiple limiting holes are formed through the rotating disk for the sleeve of the rivet nut to pass through, and the multiple limiting holes are arranged around the circumference of the rotating disk. The diameter of the limiting holes is smaller than the outer diameter of the flange of the rivet nut.

[0012] A rotating mechanism, located on the rotating disk, is used to drive the limiting hole to align with the receiving rivet nut;

[0013] The testing mechanism, located at the limiting hole on the rotating disk, is used to test the flatness of the end face of the flange of the rivet nut near the sleeve.

[0014] The unloading mechanism, located on the rotating disk, is used to sort and unload the rivet nuts on the rotating disk;

[0015] The second conveying pipe is located between the rotating disk and the vibrating disk, and is used to convey qualified rivet nuts from the rotating disk to the vibrating disk.

[0016] By adopting the above technical solution, the transfer box is used to hold the rivet nuts to be tapped. The transfer mechanism lifts the transfer box to the end of the feed pipe away from the vibratory plate, and the rivet nuts to be tapped are transferred into the feed pipe. Under the action of gravity, the rivet nuts fall downward in the feed pipe. The correction component corrects the position of the rivet nuts in the feed pipe, so that when the rivet nuts fall onto the rotating plate, the central axis of the rivet nuts is set perpendicular to the rotating plate, so that the end of the rivet nuts can fall stably into the limiting hole of the rotating plate. The rotation mechanism can drive the rotating plate to rotate and receive multiple rivet nuts for inspection. When the sleeve of the rivet nut is inserted into the limiting hole, the inspection mechanism is started. The inspection mechanism inspects the flatness of the end face of the rivet nut flange near the sleeve. After the inspection is completed, the unloading mechanism is started. The unloading mechanism sorts and unloads qualified and unqualified products. The second conveying pipe transmits qualified rivet nuts to the vibratory plate. The vibratory plate delivers qualified rivet nuts one by one to the tapping machine for tapping, which improves the output rate of qualified products of the tapping machine.

[0017] Optionally, the transfer mechanism includes a chain plate line set on the ground, a lifting plate set on the chain plate line, and a hoist set above the chain plate line for lifting the lifting plate. The chain plate line is provided with a conveying channel, the hoist is located on the conveying channel, and the conveying channel is also provided with a flipping component for driving the lifting plate to flip.

[0018] By adopting the above technical solution, the transfer box containing the threaded parts is conveyed to the lifting plate via a chain conveyor. Then, the elevator is started, and the elevator lifts the transfer box above the feed pipe inlet via the lifting plate. Next, the tilting component is started, and the tilting component drives the transfer box to rotate towards the feed pipe via the lifting plate, so that the rivet nuts in the transfer box are tilted into the feed pipe, thus completing the automatic feeding work.

[0019] Optionally, a track is provided on one side of the conveying channel, the track is located above the conveying pipe, and a conveying hopper for communicating with the conveying pipe is provided on the track. Multiple sets of conveying hoppers and the conveying pipe are provided at intervals along the length of the track. A transfer hopper for discharging rivet nuts in the transfer box into the conveying hopper is slidably provided on the track above the conveying hopper.

[0020] By adopting the above technical solution, when the transfer box rotates and tilts the rivet nuts in the direction of the conveying pipe, multiple rivet nuts are quickly tilted into the transfer hopper. After the transfer hopper is loaded with rivet nuts, it moves on the track and puts the rivet nuts into different conveying hoppers, thus completing the automatic feeding of multiple tapping machines.

[0021] Optionally, the detection mechanism includes a ballast assembly, telescopic probes, and an annular signal plate. The ballast assembly is located above the rotating disk. The rotating disk has a bearing groove for supporting the flange of the rivet nut at the limiting hole. The signal plate is fixedly installed on the bottom wall of the bearing groove. Multiple telescopic probes are provided, and the multiple telescopic probes are vertically and evenly distributed above the signal plate. The telescopic probes are in movable contact with the signal plate. The signal plate is electrically connected to the unloading mechanism.

[0022] By adopting the above technical solution, when the sleeve of the rivet nut is inserted into the limiting hole, the flange of the rivet nut is located in the bearing groove. Then, the rotating mechanism drives the rotating disk to rotate the rivet nut to the ballast assembly. The ballast assembly applies pressure to the rivet nut, causing the rivet nut to move downward. At this time, the end face of the rivet nut flange near the sleeve pushes the top of multiple telescopic probes towards the signal plate. When multiple telescopic probes simultaneously abut against the signal plate, it indicates that the end face of the rivet nut flange near the sleeve is flat, and this rivet nut is a qualified semi-finished product. Then, the signal plate drives the unloading mechanism to unload the rivet nut towards the second conveying pipe.

[0023] Optionally, the calibration assembly includes a horn and a limiting cylinder. The horn is connected to one end of the feed pipe near the rotating disk, and the limiting cylinder is connected to one end of the horn near the rotating disk. The inner diameter of the limiting cylinder is the same as the outer diameter of the rivet nut flange. An electric rod is slidably inserted along the radial direction of the limiting cylinder on the side wall of the limiting cylinder. A probe for identifying the limiting hole is provided at the end of the limiting cylinder, and the probe is electrically connected to the electric rod.

[0024] By adopting the above technical solution, the rivet nuts flow sequentially through the conveying pipe, the horn tube, and the limiting tube. When the rivet nuts are at the intersection of the horn tube and the limiting tube, since the inner diameter of the limiting tube is the same as the outer diameter of the rivet nut's flange, the rivet nuts can only pass through the limiting tube one by one vertically. When the probe detects that the discharge end of the limiting tube is aligned with the limiting hole on the rotating disk, the probe drives the electric rod to retract. At this time, only one rivet nut is placed into the limiting hole on the rotating disk from the limiting tube. By correcting the falling angle of the rivet nut, the detection mechanism can quickly detect the flatness of the flange of the rivet nut on the rotating disk.

[0025] Optionally, an installation cylinder is vertically fixed below the track, and the rotating disk is rotatably connected to one end of the installation cylinder near the vibrating disk. The unloading mechanism includes three baffles installed on the peripheral wall of the installation cylinder and two lifting rods vertically and vertically arranged below the rotating disk. The lifting rods are electrically connected to the signal board. The three baffles are evenly distributed along the circumference of the installation cylinder, and the length direction of the baffles is consistent with the radial direction of the rotating disk. The two lifting rods are located on both sides of one of the baffles.

[0026] By adopting the above technical solution, three baffles are installed at intervals on the mounting cylinder, dividing the upper area of ​​the rotating disk into three independent areas: one independent area is the uninspected area, one independent area is the qualified semi-finished product area, and the other independent area is the unqualified semi-finished product area. When a rivet nut falls onto the rotating disk, if the sleeve of the rivet nut is facing upwards, the rotating disk drives the rivet nut towards one of the baffles. Because the baffle prevents the rivet nut from entering the other independent area, the rivet nut is located in the uninspected area. Therefore, as the rotating disk rotates, the rivet nut slides out of the rotating disk under the pushing action of the baffle. If the sleeve of the rivet nut is facing downwards and located in the limiting hole, the rotating disk drives the rivet nut from the uninspected area into the other independent area. When the rivet nut moves to the ballast assembly, the ballast assembly presses down on the rivet. The rivet nut is used to detect the flatness of the flanged end face. The signal board transmits a signal to the lifting rods to determine whether the rivet nut is a qualified semi-finished product. Two lifting rods are used to lift qualified and unqualified semi-finished products, respectively. If it is a qualified semi-finished product, the rotating disk moves the rivet nut to the qualified semi-finished product area. At this time, the lifting rod in the qualified semi-finished product area quickly pushes the rivet nut out of the limit hole. As the rotating disk rotates, the rivet nut slides out of the rotating disk under the pushing action of the baffle plate. If it is an unqualified semi-finished product, the rotating disk moves the rivet nut to the unqualified semi-finished product area. At this time, the lifting rod in the unqualified semi-finished product area quickly pushes the rivet nut out of the limit hole. As the rotating disk rotates, the rivet nut slides out of the rotating disk under the pushing action of the baffle plate, thus realizing the classification and unloading of rivet nuts.

[0027] Optionally, a receiving hopper is provided below the rotating disk, and three partition plates are provided inside the receiving hopper. The three partition plates divide the receiving hopper into three independent chambers. The three partition plates correspond one-to-one with the three baffle plates and are arranged on the same plane. The end of the second conveying pipe away from the vibrating disk is connected to one of the independent chambers, and the second conveying pipe and one of the lifting rods are both projected into the same independent chamber.

[0028] By adopting the above technical solution, the receiving hopper is divided into three independent chambers by the action of three partition plates. The three independent chambers can respectively hold untested rivet nuts, unqualified rivet nuts, and qualified rivet nuts, thereby helping to quickly screen out regular unqualified products.

[0029] Optionally, an air nozzle is provided on the peripheral wall of the mounting cylinder between the two baffles. The air nozzle is located above the rotating disk and is inclined toward the rotating disk.

[0030] By adopting the above technical solution, the air nozzle is tilted towards the rotating disk, and the gas blown out by the air nozzle can accelerate the speed at which the rivet nuts slide off the rotating disk, thereby realizing the rapid sorting and unloading of the rivet nuts.

[0031] Optionally, multiple brush strips are evenly distributed on the inner wall of the conveying pipe.

[0032] By adopting the above technical solution, when the rivet nut is transported through the feed pipe, the brush strip can scrape the flange of the rivet nut, reduce the accumulation of dust on the end face of the flange near the sleeve, and minimize the impact of dust accumulation on the detection accuracy of the testing mechanism on the flatness of the end face of the flange of the rivet nut near the sleeve.

[0033] Optionally, a vibrator is provided on the outer wall of the horn.

[0034] By adopting the above technical solution, the vibrator can accelerate the entry of the rivet nut in the horn cylinder into the limiting cylinder, thereby increasing the conveying speed of the rivet nut.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. After the sleeve of the rivet nut is inserted into the limiting hole, the detection mechanism is started. The detection mechanism detects the flatness of the end face of the rivet nut flange near the sleeve. After the detection is completed, the unloading mechanism is started. The unloading mechanism sorts and unloads qualified and unqualified products. The second conveying pipe transmits qualified rivet nuts to the vibratory plate. The vibratory plate delivers qualified rivet nuts one by one to the tapping machine for tapping, which improves the output rate of qualified products of the tapping machine.

[0037] 2. The correction component can correct the falling angle of the rivet nut, so that when the rivet nut falls onto the rotating disk, the central axis of the rivet nut is set perpendicular to the rotating disk, thereby allowing the end of the rivet nut to fall stably into the limiting hole of the rotating disk, so that the detection mechanism can quickly detect the flatness of the flange of the rivet nut on the rotating disk.

[0038] 3. When the rivet nut is transported through the feed pipe, the brush strip can scrape the flange of the rivet nut to reduce the accumulation of dust on the end face of the flange near the sleeve, and to avoid the accumulation of dust affecting the detection accuracy of the inspection agency on the flatness of the end face of the flange of the rivet nut near the sleeve. Attached Figure Description

[0039] Figure 1 This is a background technical drawing of this application.

[0040] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0041] Figure 3 This is a schematic diagram of the structure of the vibratory plate, rotating plate, second conveying pipe, conveying hopper, transfer hopper and receiving hopper in the embodiments of this application.

[0042] Figure 4 This is a schematic diagram of the structure of the conveying pipe, correction component, rotating disk, limiting hole, mounting cylinder and receiving hopper in the embodiments of this application.

[0043] Figure 5 This is a schematic diagram of the structure of the feeding pipe, rotating disk, limiting hole, rotating mechanism and brush strip in the embodiments of this application.

[0044] Figure 6 This is a schematic diagram of the structure of the rotating disk, limiting hole, telescopic probe, signal plate, baffle plate and lifting rod in the embodiments of this application.

[0045] Reference numerals: 1. Transfer box; 2. Vibratory feeder; 3. Conveying pipe; 4. Transfer mechanism; 41. Chain conveyor; 42. Lifting plate; 43. Elevator; 5. Correction assembly; 51. Horn; 52. Limiting cylinder; 6. Rotating disc; 7. Limiting hole; 8. Rotating mechanism; 81. Pulley; 82. Belt; 83. Rotating rod; 9. Detection mechanism; 91. Ballast assembly; 92. Telescopic probe; 93. Signal plate; 10. Unloading mechanism; 101. Baffle plate; 102. Lifting rod; 11. 12. Second conveying pipe; 13. Conveying channel; 14. Tilting assembly; 15. Track; 16. Conveying hopper; 17. Transfer hopper; 18. Bearing trough; 19. Electric rod; 20. Probe; 21. Mounting cylinder; 22. Receiving hopper; 23. Divider plate; 24. Independent chamber; 25. Air nozzle; 26. Brush strip; 27. Vibrator; 27. Rivet nut; 271. Sleeve; 272. Flanged ring; 28. Guide plate; 30. Top plate; 31. Support plate; 32. Conduit; 33. Receiving box. Detailed Implementation

[0046] The following is in conjunction with the appendix Figure 2-6 This application will be described in further detail.

[0047] This application discloses an automatic feeding device. (Refer to...) Figure 2 and Figure 3 An automatic feeding device includes a vibratory plate 2 installed inside a tapping machine, a conveying pipe 3 vertically installed above the vibratory plate 2, a transfer box 1 for holding the tapping machine, and a transfer mechanism 4 for lifting and transferring the rivet nuts 27 in the transfer box 1 to the end of the conveying pipe 3 away from the vibratory plate 2. Multiple tapping machines, vibratory plates 2, and conveying pipes 3 are provided, and the multiple tapping machines are arranged in a straight line at intervals. A top plate 30 is horizontally installed above the tapping machines, and a track 14 is installed on the top plate 30. The length direction of the track 14 is consistent with the layout direction of the multiple tapping machines.

[0048] Reference Figure 2 and Figure 3Multiple through holes, corresponding to multiple tapping machines, are sequentially opened along the length of the track 14 on the top plate 30. A material conveying hopper 15 is fixedly installed on the top plate 30 at the through holes, and one end of the material conveying pipe 3 is fixedly connected to the material conveying hopper 15. A transfer hopper 16 is slidably disposed on the track 14 above the material conveying hopper 15 for discharging the rivet nuts 27 in the transfer box 1 into the material conveying hopper 15.

[0049] The transfer box 1 is used to hold the rivet nuts 27 to be tapped. The transfer mechanism 4 lifts the transfer box 1 above the top plate 30 and transfers the rivet nuts 27 to be tapped into the transfer bucket 16. The transfer bucket 16 slides on the track 14 and puts the rivet nuts 27 inside into different conveying buckets 15. Under the action of gravity, the rivet nuts 27 slide down in the conveying pipe 3 towards the vibrating plate 2.

[0050] To ensure that the rivet nut 27 that slips down to the vibratory feeder 2 is a qualified semi-finished product, refer to Figure 2 and Figure 3 A rotating disk 6 is rotatably arranged between the feed pipe 3 and the vibratory disk 2. The discharge port of the feed pipe 3 is vertically projected onto the rotating disk 6. The rotation axis of the rotating disk 6 is vertically arranged and located on one side of the feed pipe 3. The rotating disk 6 is equipped with a detection mechanism 9 for detecting the flatness of the end face of the flange 272 of the rivet nut 27 near the sleeve 271. A second conveying pipe 11 is arranged between the rotating disk 6 and the vibratory disk 2 for conveying qualified rivet nuts 27 on the rotating disk 6 to the vibratory disk 2. The second conveying pipe 11 passes through the outer shell of the tapping machine and extends into the inside of the tapping machine, and is located above the vibratory disk 2.

[0051] The rivet nuts 27 conveyed by the material conveying pipe 3 fall one by one onto the rotating disc 6. The detection mechanism 9 detects the rivet nuts 27 on the disc 6. The qualified semi-finished products are transferred to the vibratory plate 2 through the second conveying pipe 11. The vibratory plate 2 delivers the qualified semi-finished products one by one to the tapping machine for tapping.

[0052] Reference Figure 2 and Figure 3The transfer mechanism 4 includes a chain conveyor 41 horizontally positioned on the ground, a lifting plate 42 vertically mounted on the chain conveyor 41, and a hoist 43 positioned above the chain conveyor 41 for lifting the lifting plate 42. The chain conveyor 41 is located on one side of the tapping machine, and its conveying direction is either towards or away from the tapping machine. A vertically positioned conveying channel 12 is welded onto the chain conveyor 41 using iron sheets. The side of the conveying channel 12 closest to the tapping machine is open, and the side of the conveying channel 12 away from the tapping machine has an inlet for the transfer box 1 to enter. The lifting plate 42 and the hoist 43 are both located within the conveying channel 12. When the transfer box 1, containing the material to be tapped, is conveyed to the lifting plate 42 via the inlet of the conveying channel 12 through the chain conveyor 41, the hoist 43 is activated, lifting the transfer box 1 above the top plate 30 via the lifting plate 42.

[0053] To achieve rapid transfer of the rivet nut 27 to be tapped into the transfer bucket 16, refer to Figure 2 and Figure 3 A vertically arranged connecting groove is provided through the side wall of the conveying channel 12. A tilting assembly 13 is also provided on the conveying channel 12 to drive the lifting plate 42 to tilt. The tilting assembly 13 includes a connecting block slidably connected in the connecting groove, a rotating shaft rotatably passing through the connecting block and fixedly connected to the lifting plate 42, and a rotary motor located on the connecting block to drive the rotating shaft to rotate. The elevator 43 acts on the connecting block to drive the lifting plate 42 to move up and down. One end of the rotating shaft is fixedly connected to the side wall of the lifting plate 42, and the rotary motor is located outside the conveying channel 12. When the elevator 43 lifts the transfer box 1 above the top plate 30 via the lifting plate 42, the rotary motor follows the lifting plate 42 and lifts synchronously. Then, the rotary motor is started, and the rotary motor drives the transfer box 1 to rotate towards the transfer bucket 16 via the lifting plate 42, causing the rivet nuts 27 inside the transfer box 1 to be tilted into the transfer bucket 16. To minimize the risk of the transfer box 1 tipping over from the lifting plate 42 during tilting, an electric lock is provided on the lifting plate 42 to lock the transfer box 1.

[0054] The transfer bucket 16 delivers the rivet nut 27 into the conveying hopper 15. The conveying hopper 15 then transports the rivet nut 27 towards the rotating disk 6 via the conveying pipe 3. To ensure that the central axis of the rivet nut 27 is perpendicular to the rotating disk 6 when it falls onto the rotating disk 6, refer to... Figure 4 and Figure 5A correction component 5 is provided at one end of the feed pipe 3 near the vibrating plate 2. The correction component 5 includes a horn 51 and a limiting cylinder 52. The horn 51 is welded and connected to one end of the feed pipe 3 near the rotating plate 6, and the cross-sectional area of ​​the horn 51 gradually decreases in the direction away from the feed pipe 3. A vibrator 26 is fixed to the outer wall of the horn 51 by screws. The limiting cylinder 52 is welded and connected to one end of the horn 51 near the rotating plate 6. The limiting cylinder 52 is square on the outside and round on the inside. The inner diameter of the limiting cylinder 52 is the same as the outer diameter of the flange 272 of the rivet nut 27.

[0055] The rivet nut 27 flows sequentially through the conveying pipe 3, the horn tube 51, and the limiting tube 52. When the rivet nut 27 is at the intersection of the horn tube 51 and the limiting tube 52, since the inner diameter of the limiting tube 52 is the same as the outer diameter of the flange 272 of the rivet nut 27, the rivet nut 27 can only pass through the limiting tube 52 one by one vertically. The vibrator 26 can accelerate the rivet nut 27 in the horn tube 51 into the limiting tube 52, thereby increasing the conveying speed of the rivet nut 27.

[0056] To minimize the stacking of rivet nuts 27 on the rotating disk 6, refer to Figure 4 and Figure 5 An electric rod 18 is radially slidable through the side wall of the limiting cylinder 52. A through hole is provided in the side wall of the limiting cylinder 52. The base of the electric rod 18 is fixedly installed on the outer side wall of the limiting cylinder 52 by screws, and the rod of the electric rod 18 is movably inserted through the through hole. When the rod of the electric rod 18 extends into the limiting cylinder 52, it can prevent the transmission of the rivet nut 27 in the limiting cylinder 52. A probe 19 is provided at the end of the limiting cylinder 52. The probe 19 is electrically connected to the electric rod 18. When the probe 19 detects the material dropping position on the rotating disk 6, it activates the electric rod 18 to retract, so that the limiting cylinder 52 delivers only one rivet nut 27 onto the rotating disk 6.

[0057] Reference Figure 4 and Figure 5A support plate 31 is suspended below the track 14, and an installation cylinder 20 is vertically fixed on the support plate 31. A material conveying pipe 3 passes through the support plate 31 and is located on one side of the installation cylinder 20. A rotating disk 6 is rotatably connected to the end of the installation cylinder 20 near the vibrating disk 2. A rotating mechanism 8 for driving the rotating disk 6 is also provided on the support plate 31. The rotating mechanism 8 includes a rotating rod 83, two pulleys 81, and a belt 82 tensioned and connected to the two pulleys 81. The rotating rod 83 is rotatably connected to the inner wall of the installation cylinder 20 via a coupling, with one end of the rotating rod 83 coaxially connected to the rotating disk 6 and the other end passing through the support plate 31. One pulley 81 is coaxially fixedly installed on the end of the rotating rod 83 extending out of the support plate 31, and the other pulley 81 is rotatably installed on the support plate 31. A servo motor is installed on the support plate 31. The servo motor drives the pulley 81 located on one side of the rotating rod 83 to rotate. This pulley 81 drives another pulley 81 through the belt 82 to drive the rotating rod 83 and the rotating disk 6 to rotate intermittently, thereby realizing the one-to-one reception of the rivet nuts 27 placed one by one by the limit cylinder 52.

[0058] Reference Figure 4 and Figure 5 The rotating disk 6 has multiple limiting holes 7 through which the sleeve 271 of the rivet nut 27 passes. In this embodiment, there are three limiting holes 7, which are evenly distributed around the circumference of the rotating disk 6. The diameter of the limiting holes 7 is smaller than the outer diameter of the flange 272 of the rivet nut 27. A bearing groove 17 for supporting the flange 272 of the rivet nut 27 is connected to the limiting holes 7 on the rotating disk 6. The bearing groove 17 is coaxial with the limiting holes 7, and the size of the groove opening gradually decreases towards the limiting holes 7. Under the combined action of the probe 19 and the electric rod 18, the rivet nut 27, which is placed through the limiting cylinder 52, is located in the bearing groove 17, and the central axis of the rivet nut 27 is coaxial with the central axis of the bearing groove 17.

[0059] Reference Figure 5 and Figure 6 The detection mechanism 9 includes a ballast assembly 91, telescopic probes 92, and an annular signal plate 93. The ballast assembly 91 is located above the rotating disk 6 and is configured as an electric actuator. The electric actuator is fixedly installed on the support plate 31, and its ballast end moves up and down in a direction perpendicular to the rotating disk 6. The signal plate 93 is fixedly installed on the bottom wall of the bearing groove 17. Multiple telescopic probes 92 are provided, and all of them are vertically and evenly distributed above the signal plate 93 through the mounting cylinder 20. One end of the telescopic probe 92 is in movable contact with the signal plate 93.

[0060] When the sleeve 271 of the rivet nut 27 is inserted into the limiting hole 7, the flange 272 of the rivet nut 27 is located in the bearing groove 17. Then, the rotating mechanism 8 drives the rotating disk 6 to rotate the rivet nut 27 to the ballast assembly 91. The ballast assembly 91 applies pressure to the rivet nut 27, causing the rivet nut 27 to move downward. At this time, the end face of the flange 272 of the rivet nut 27 near the sleeve 271 pushes the tops of multiple telescopic probes 92 toward the signal plate 93. When multiple telescopic probes 92 simultaneously abut against the signal plate 93, it indicates that the end face of the flange 272 of the rivet nut 27 near the sleeve 271 is flat, and this rivet nut 27 is a qualified semi-finished product.

[0061] To minimize the impact of dust accumulation on the flange 272 of the rivet nut 27, which could affect the accuracy of the inspection mechanism 9 in measuring the flatness of the end face of the flange 272 near the sleeve 271, therefore, reference is made to... Figure 5 Multiple brush strips 25 are evenly distributed on the inner wall of the conveying pipe 3. When the rivet nut 27 is conveyed through the conveying pipe 3, the brush strips 25 can scrape the flange 272 of the rivet nut 27 to reduce the accumulation of dust on the end face of the flange 272 near the sleeve 271.

[0062] To achieve rapid delivery of qualified rivet nuts 27 to the vibratory feeder 2, refer to Figure 5 and Figure 6 The rotating disk 6 is equipped with an unloading mechanism 10 for sorting and unloading the rivet nuts 27 on the rotating disk 6. The unloading mechanism 10 includes three baffle plates 101 installed on the circumferential wall of the mounting cylinder 20 and two lifting rods 102 vertically and vertically installed below the rotating disk 6. The three baffle plates 101 are evenly distributed around the circumference of the mounting cylinder 20, and the length direction of the baffle plates 101 is consistent with the radial direction of the rotating disk 6. The baffle plates 101 are located between two adjacent limiting holes 7. The lifting rods 102 are electrically connected to the signal board 93. The two lifting rods 102 are located on both sides of one of the baffle plates 101. An air nozzle 24 is provided on the circumferential wall of the mounting cylinder 20 between the two baffle plates 101. The air nozzle 24 is located above the rotating disk 6 and is inclined towards the rotating disk 6. The air nozzle 24 is connected to an air pump through an air pipe.

[0063] Three baffles 101 divide the upper area of ​​the rotating disk 6 into three independent areas: one independent area is the uninspected area, one independent area is the qualified semi-finished product area, and the other independent area is the unqualified semi-finished product area. When the rivet nut 27 falls onto the rotating disk 6, if the sleeve 271 of the rivet nut 27 is facing upward, the rotating disk 6 will drive the rivet nut 27 to move towards one of the baffles 101. Since the baffle 101 prevents the rivet nut 27 from entering another independent area, the rivet nut 27 is located in the uninspected area. Therefore, as the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle 101.

[0064] If the sleeve 271 of the rivet nut 27 faces downward and is located in the limiting hole 7, the rotating disk 6 drives the rivet nut 27 from the undetected area to another independent area. When the rivet nut 27 moves to the ballast assembly 91, the rotating disk 6 stops rotating. At this time, the ballast assembly 91 presses down on the rivet nut 27 to detect the flatness of the end face of the flange ring 272 of the rivet nut 27. The signal board 93 transmits the signal of whether the rivet nut 27 is a qualified semi-finished product to the lifting rod 102. The two lifting rods 102 correspond to the lifting action of qualified semi-finished products and the lifting action of unqualified semi-finished products, respectively. If it is a qualified semi-finished product, the rotating disk 6 drives the rivet nut 27 to the qualified semi-finished product area. At this time, the lifting rod 102 located in the qualified semi-finished product area quickly pushes the rivet nut 27 out of the limiting hole 7. As the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle plate 101.

[0065] If it is a substandard semi-finished product, the rotating disk 6 drives the rivet nut 27 to move to the substandard semi-finished product area. At this time, the lifting rod 102 located in the substandard semi-finished product area quickly pushes the rivet nut 27 out of the limiting hole 7. As the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle plate 101, realizing the classification and unloading of the rivet nut 27.

[0066] To quickly screen and organize the inspected rivet nuts 27, refer to Figure 3 and Figure 4 A receiving hopper 21 is provided below the rotating disk 6, and the receiving hopper 21 is fixedly mounted on the top plate 30 by a connecting plate. A guide plate 28 is fixedly installed at the opening end of the receiving hopper 21. The guide plate 28 is projected into the receiving hopper 21, and the projection of the rotating disk 6 is on the guide plate 28. The upper surface of the guide plate 28 is inclined from the center of the rotating disk 6 toward the periphery of the guide plate 28. The receiving hopper 21 is equipped with three partition plates 22, which divide the receiving hopper 21 into three independent chambers 23. The three partition plates 22 correspond one-to-one with the three baffle plates 101 and are arranged on the same plane. One of the independent chambers 23 is connected to the second conveying pipe 11, and the second conveying pipe 11 and one of the lifting rods 102 used to lift qualified semi-finished products are both projected into the same independent chamber 23. The end of the second conveying pipe 11 away from the receiving hopper 21 points towards the vibrating plate 2. The second conveying pipe 11 is used to convey qualified rivet nuts 27 from the rotating plate 6 into the vibrating plate 2. The other two independent chambers 23 on the receiving hopper 21 are also connected to conduits 32, and each conduit 32 is equipped with a receiving box 33 for receiving rivet nuts 27 at the end away from the receiving hopper 21.

[0067] The implementation principle of an automatic feeding device in this application embodiment is as follows: the transfer mechanism 4 lifts the transfer box 1 above the top plate 30, and the rivet nut 27 to be tapped is transferred to the transfer bucket 16. The transfer bucket 16 slides on the track 14 and puts the rivet nut 27 inside into different conveying buckets 15. Under the action of gravity, the rivet nut 27 slides down the conveying pipe 3 towards the vibrating plate 2.

[0068] The rivet nuts 27 flow sequentially through the conveying pipe 3, the horn tube 51, and the limiting tube 52, and fall vertically one by one into the bearing groove 17 on the rotating disk 6. If the sleeve 271 of the rivet nut 27 faces upward, as the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle plate 101 and falls into an independent chamber 23 of the receiving hopper 21. Therefore, the untested rivet nuts 27 are collected into a receiving box 33 under the action of the guide tube 32.

[0069] If the sleeve 271 of the rivet nut 27 faces downward and is located in the limiting hole 7, the flange 272 of the rivet nut 27 is embedded in the bearing groove 17. When the rotating disk 6 drives the rivet nut 27 to move to the ballast assembly 91, the rotating disk 6 stops rotating. At this time, the ballast assembly 91 presses down on the rivet nut 27 to detect the flatness of the end face of the flange 272 of the rivet nut 27.

[0070] The signal board 93 transmits a signal to the lifting rod 102 indicating whether the rivet nut 27 is a qualified semi-finished product. If it is a qualified semi-finished product, the rotating disk 6 drives the rivet nut 27 to the qualified semi-finished product area. At this time, the lifting rod 102 in the qualified semi-finished product area quickly pushes the rivet nut 27 out of the limiting hole 7. As the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle plate 101 and falls into an independent chamber 23 of the receiving hopper 21. The second conveying pipe 11 transmits the qualified semi-finished product in the independent chamber 23 to the vibrating plate 2. The vibrating plate 2 delivers the rivet nut 27 one by one to the tapping machine for tapping.

[0071] If it is a substandard semi-finished product, the rotating disk 6 drives the rivet nut 27 to move to the substandard semi-finished product area. At this time, the lifting rod 102 located in the substandard semi-finished product area quickly pushes the rivet nut 27 out of the limiting hole 7. As the rotating disk 6 rotates, the rivet nut 27 slides out of the rotating disk 6 under the pushing action of the baffle plate 101 and falls into an independent chamber 23 of the receiving hopper 21. Therefore, the substandard semi-finished rivet nut 27 is collected into a receiving box 33 under the action of the guide tube 32.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic feeding device, comprising a transfer box (1), a vibrating plate (2), and a conveying pipe (3), wherein the conveying pipe (3) is vertically arranged above the vibrating plate (2), characterized in that: Also includes The transfer mechanism (4) is used to lift and transfer the rivet nut (27) in the transfer box (1) to the end of the conveying pipe (3) away from the vibrating plate (2); The calibration component (5) is located at one end of the feed pipe (3) near the vibratory plate (2) and is used to calibrate the rivet nut (27) for directional transmission; A rotating disk (6) is rotatably disposed between the conveying pipe (3) and the vibrating disk (2), and the axis of rotation of the rotating disk (6) is vertically arranged; Multiple limiting holes (7) are provided on the rotating disk (6) for the sleeve (271) of the rivet nut (27) to pass through. The multiple limiting holes (7) are arranged around the rotating disk (6). The diameter of the limiting holes (7) is smaller than the outer diameter of the flange (272) of the rivet nut (27). A rotating mechanism (8) is located on the rotating disk (6) and is used to drive the limiting hole (7) to align with the receiving rivet nut (27). The detection mechanism (9) is located at the limiting hole (7) on the rotating disk (6) and is used to detect the flatness of the end face of the flange (272) of the rivet nut (27) near the sleeve (271); The unloading mechanism (10) is located on the rotating disk (6) and is used to classify and unload the rivet nuts (27) on the rotating disk (6); The second conveying pipe (11) is located between the rotating disk (6) and the vibrating disk (2) and is used to convey qualified rivet nuts (27) on the rotating disk (6) to the vibrating disk (2). The transfer mechanism (4) includes a chain plate line (41) set on the ground, a lifting plate (42) set on the chain plate line (41) and a hoist (43) set above the chain plate line (41) for lifting the lifting plate (42). A conveying channel (12) is provided on the chain plate line (41), and the hoist (43) is located on the conveying channel (12). A flipping component (13) for driving the lifting plate (42) to flip is also provided on the conveying channel (12). A track (14) is provided on one side of the conveying channel (12). The track (14) is located above the conveying pipe (3), and a conveying hopper (15) for communicating with the conveying pipe (3) is provided on the track (14). Multiple sets of conveying hoppers (15) and the conveying pipe (3) are provided at intervals along the length of the track (14). A transfer hopper (16) for dropping the rivet nut (27) in the transfer box (1) into the conveying hopper (15) is slidably provided on the track (14) above the conveying hopper (15). The detection mechanism (9) includes a ballast assembly (91), a telescopic probe (92), and a circular signal plate (93). The ballast assembly (91) is located above the rotating disk (6). The rotating disk (6) has a bearing groove (17) for bearing the flange ring (272) of the rivet nut (27) at the limiting hole (7). The signal plate (93) is fixedly installed on the bottom wall of the bearing groove (17). There are multiple telescopic probes (92). The multiple telescopic probes (92) are vertically and evenly distributed above the signal plate (93). The telescopic probes (92) are in movable contact with the signal plate (93). The signal plate (93) is electrically connected to the unloading mechanism (10). The correction component (5) includes a horn (51) and a limiting cylinder (52). The horn (51) is connected to one end of the feed pipe (3) near the rotating disk (6). The limiting cylinder (52) is connected to one end of the horn (51) near the rotating disk (6). The inner diameter of the limiting cylinder (52) is consistent with the outer diameter of the flange ring (272) of the rivet nut (27). An electric rod (18) is slidably inserted on the side wall of the limiting cylinder (52) along the radial direction of the limiting cylinder (52). A probe (19) for identifying the limiting hole (7) is provided at the end of the limiting cylinder (52). The probe (19) is electrically connected to the electric rod (18). A vibrator (26) is provided on the outer side wall of the horn (51).

2. The automatic feeding device according to claim 1, characterized in that: An installation cylinder (20) is vertically fixed below the track (14). The rotating disk (6) is rotatably connected to one end of the installation cylinder (20) near the vibrating disk (2). The unloading mechanism (10) includes three baffle plates (101) installed on the periphery of the installation cylinder (20) and two lifting rods (102) vertically lifted and lowered below the rotating disk (6). The lifting rods (102) are electrically connected to the signal board (93). The three baffle plates (101) are evenly distributed around the circumference of the installation cylinder (20), and the length direction of the baffle plates (101) is consistent with the radial direction of the rotating disk (6). The two lifting rods (102) are located on both sides of one of the baffle plates (101).

3. The automatic feeding device according to claim 2, characterized in that: Below the rotating disk (6) is a receiving hopper (21), and inside the receiving hopper (21) are three partition plates (22). The three partition plates (22) divide the receiving hopper (21) into three independent chambers (23). The three partition plates (22) correspond one-to-one with the three baffle plates (101) and are coplanar. The end of the second conveying pipe (11) away from the vibrating disk (2) is connected to one of the independent chambers (23), and the second conveying pipe (11) and one of the lifting rods (102) are both projected into the same independent chamber (23).

4. The automatic feeding device according to claim 2, characterized in that: An air nozzle (24) is provided on the peripheral wall of the mounting cylinder (20) between the two baffles (101). The air nozzle (24) is located above the rotating disk (6) and is inclined toward the rotating disk (6).

5. The automatic feeding device according to claim 1, characterized in that: Multiple brush strips (25) are evenly distributed on the inner wall of the feed pipe (3).

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