A process transfer hub for fastener production and methods of using the same

Abstract

This invention relates to the field of fastener production, specifically to a process transfer hub for fastener production, comprising a support plate, a toothed ring rotatably connected to the inner bottom surface of the support plate, a motor fixedly connected to the inner bottom surface of the support plate, a transmission gear fixedly connected to the rotating end of the motor, the side wall of the transmission gear meshing with the inner ring of the toothed ring, and a U-shaped guide ring fixedly connected to the inner bottom surface of the support plate. This process transfer hub for fastener production and its usage method consist of a feeding mechanism, a detection mechanism, and a screening mechanism. When a rivet is drilled and transported to the next process via a U-shaped transfer rail, the rivet enters the interior of the support sleeve. Then, a detection mechanism inside the support sleeve detects the drilled hole. If the drilled hole deviates from the center position or the rivet surface is deformed, the detection mechanism can push it out of the support sleeve and remove it, while qualified rivets continue to be transported along the U-shaped transfer rail.

Description

Technical Field

[0001] This invention relates to the field of fastener manufacturing, specifically to a process transfer hub for fastener manufacturing and its usage method. Background Technology

[0002] Fasteners are a type of mechanical part used for fastening connections and are widely used in various industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. Rivets are one type of fastener, and they are usually transferred by transfer equipment during the process changeover in the production line.

[0003] An existing patent (publication number: CN108116848B) discloses a rivet transfer and conveying device, which includes a vibrating screen body with an upper vibrating mesh and a lower vibrating mesh inside. The upper vibrating mesh has a conical hole. In the process of implementing this solution, the inventors discovered the following problems in the existing technology that have not been adequately addressed: 1. In the production process of hollow rivets, it is necessary to punch a hole in the center of the rivet. After punching, the rivet needs to be transferred to the next processing step via a conveying pipe. However, during the punching process, the hole deviates from the center of the rivet, and during the transfer process, the rivet surface is deformed due to compression, both of which affect the usability of the hole in the center of the rivet and the subsequent use effect. It is difficult to inspect the quality of the hole after rivet production using the aforementioned rivet transfer device; 2. Furthermore, rivets vary in length during production. It is difficult for the aforementioned rivet transfer device to automatically screen rivets of different lengths to avoid individual screening later. Summary of the Invention

[0004] The purpose of this invention is to provide a process transfer hub for fastener production and its usage method, to solve the problems mentioned in the background art: 1. Existing rivet transfer equipment has difficulty in detecting the hole quality of hollow rivets during use; 2. Existing rivet transfer equipment has difficulty in screening rivets of different lengths during use. To achieve the above objectives, this invention provides the following technical solution: A process transfer hub for fastener production, including a support plate, a toothed ring rotatably connected to the inner bottom surface of the support plate, a motor fixedly connected to the inner bottom surface of the support plate, a transmission gear fixedly connected to the rotating end of the motor, and the side wall of the transmission gear meshing with the inner ring of the toothed ring;

[0005] A U-shaped guide ring is fixedly connected to the inner bottom surface of the support disk. The U-shaped guide ring is located between the inner ring of the support disk and the outer ring of the toothed ring. Eight support sleeves are equidistantly connected to the middle of the U-shaped guide ring. One side of the support sleeve is fixedly connected to the outer ring of the toothed ring. An annular groove is opened in the inner ring of the support disk. The other side of the support sleeve is slidably connected to the inside of the annular groove.

[0006] The top of the support plate is fixedly connected to a U-shaped transfer slide rail, and the left side of the support plate is movably connected to a feeding mechanism that cooperates with the U-shaped transfer slide rail. The side wall of the feeding mechanism overlaps with the side wall of the adjacent support sleeve.

[0007] A detection mechanism is movably connected between the inside of the U-shaped guide ring and the surface of the support sleeve. A screening mechanism is movably connected between the right side of the support plate and the U-shaped transfer slide rail. A screening rack that cooperates with the screening mechanism is fixedly connected to the side wall of the support sleeve.

[0008] Preferably, the feeding mechanism includes a support plate, which is fixedly connected to the left side of the support plate. A pad is fixedly connected to the top of the support plate, and an adjusting plate is slidably connected to the middle of the pad. A compression spring is fixedly connected between the left side of the adjusting plate and the side wall of the pad, and a pressure roller is rotatably connected to the right side of the adjusting plate.

[0009] The adjusting plate has symmetrically opened inclined grooves in the middle, and the top of the support plate is symmetrically slidably connected with limiting plates that cooperate with U-shaped transfer slide rails. The tops of the two limiting plates are respectively slidably connected inside the two inclined grooves.

[0010] A feeding groove is provided on the right side of the support plate. An arc-shaped pressure plate that cooperates with the support sleeve is rotatably connected inside the feeding groove. The side wall of the pressure roller overlaps with the side wall of the arc-shaped pressure plate.

[0011] Preferably, the top of the support plate is symmetrically provided with support grooves, and the two limiting plates are slidably connected inside the two support grooves respectively. The top of the limiting plate is fixedly connected with a limiting pin, and the limiting plate is slidably connected inside the inclined groove through the limiting pin.

[0012] Preferably, the detection mechanism includes two detection guide grooves, which are symmetrically opened on both sides of the inner wall of the U-shaped guide ring. A trapezoidal protrusion is symmetrically fixedly connected to the outer wall of the right side of the U-shaped guide ring, and a trapezoidal top block is symmetrically fixedly connected to the top of the right side of the U-shaped guide ring.

[0013] The support sleeve has a T-shaped groove in the middle, and a sliding groove is formed in the lower part of the inner wall of the T-shaped groove. A T-shaped sliding rod that cooperates with the trapezoidal top block is slidably connected inside the sliding groove. A compression spring is fixedly connected between the top of the T-shaped sliding rod and the inner top surface of the sliding groove. A push cylinder is fixedly connected to the side wall of the T-shaped sliding rod, and the push cylinder is slidably connected to the lower part of the inner wall of the T-shaped groove.

[0014] The push cylinder is slidably connected to a detection rod, and the lower part of the detection rod is rotatably connected to a rotating rod. The two ends of the rotating rod are slidably connected to the inside of the two detection guide grooves respectively.

[0015] The lower part of the inner wall of the support sleeve is provided with a movable groove, and a baffle is slidably connected inside the movable groove. The upper part of the baffle is slidably connected inside the T-shaped groove. The bottom of the baffle is symmetrically connected to rollers through the movable groove. The bottoms of the two rollers respectively overlap the tops of the two trapezoidal protrusions. A return spring is movably sleeved on the lower part of the baffle.

[0016] Preferably, a stop block is fixedly connected to the lower part of the inner wall of the moving groove, and vertical rods are symmetrically fixedly connected to the bottom of the baffle. Both vertical rods are movably inserted through the middle of the stop block. The top of the return spring overlaps with the bottom of the stop block, and the bottom of the return spring overlaps with the top of the roller.

[0017] The upper sidewall of the baffle is designed as an inclined surface.

[0018] Preferably, the screening mechanism includes mounting blocks, and two mounting blocks are provided. The two mounting blocks are symmetrically fixedly connected to the right side of the support plate. A rotating rod is rotatably connected between the two mounting blocks. A circular gear that cooperates with the screening rack is fixedly sleeved in the middle of the rotating rod. A torsion spring is fixedly connected between the side wall of the circular gear and the side wall of the adjacent mounting block. A discharge hook is fixedly connected to the top of the rotating rod.

[0019] The side wall of the U-shaped transfer slide rail has two screening ports, and the right side of the support plate is fixedly connected to two screening slide rails, with each of the two screening slide rails corresponding to one of the two screening ports.

[0020] Preferably, the support plate has a through groove at a 45-degree angle that mates with a spur gear, and the side wall of the support plate is fixedly connected to a discharge plate that mates with a discharge hook.

[0021] The surface of the support plate has three discharge slots, which correspond one-to-one with the lower part of the U-shaped transfer slide rail and the two screening slide rails.

[0022] A method for using a process transfer hub in fastener production includes the following steps:

[0023] S1. When the hollow rivet after drilling is completed is transported to the next process via the U-shaped transfer slide rail, the hollow rivet sliding on the U-shaped transfer slide rail stops being transported by the two limit plates. At this time, the motor is started, and the motor drives the transmission gear to mesh with the inner ring of the gear ring, so that the gear ring carries eight support sleeves and rotates around the circumference inside the U-shaped guide ring. When one of the support sleeves rotates to the position of the arc-shaped pressure plate, the arc-shaped pressure plate is pressed and moves to the outside of the support plate, so that the arc-shaped pressure plate presses against the pressure roller and the adjusting plate and moves to the left. Under the action of the two inclined grooves in the middle of the adjusting plate, the two limit plates move out of position, releasing the limit on the rivet between the two limit plates, so that the rivet continues to move to the right and falls into the support sleeve on the sliding track.

[0024] S2. As the support sleeve continues to move along the trajectory of the U-shaped guide ring, the rollers at the bottom of the baffle inside the support sleeve move to the position of the trapezoidal protrusions on both sides of the U-shaped guide ring, so that the baffle rises inside the moving groove and moves to the inside of the T-shaped groove, thereby limiting the rivets that enter the support sleeve.

[0025] S3. Next, the support sleeve continues to rotate to the position of the spur gear on the right side of the support plate. At the same time, the detection rod and rotating roller inside the support sleeve move along the trajectory of the detection guide groove to the protrusion. At this time, the rotating roller carries the detection rod and gradually moves upward along the protrusion of the detection guide groove, so that the detection rod is pushed out from the inside of the push cylinder and inserted into the middle of the hollow rivet to be tested. When the surface of the hollow rivet is deformed or the hole is misaligned, etc., the detection rod pushes the hollow rivet out from the inside of the support sleeve. At the same time, as the screening rack on the side wall of the support sleeve meshes with the side wall of the spur gear, the spur gear carries the rotating rod and the unloading hook to rotate counterclockwise, hooking down the pushed-out rivet and discharging it. The qualified hollow rivet will not be pushed up after the detection rod is inserted.

[0026] S4. After passing the test, the hollow rivet continues to rotate inside the support plate along with the support sleeve. At the same time, the roller at the bottom of the baffle releases its contact with the trapezoidal protrusion. When the support sleeve moves to the 90-degree position of the support plate, the longer rivet falls into the T-shaped groove and is higher than the U-shaped transfer slide rail. After the long rivet moves to the screening slide rail position at the 90-degree position of the support plate, it is blocked by the screening slide rail and discharged along the screening port position at this point.

[0027] S5. Rivets of medium and short lengths will not be blocked by the screening slide rail in the 90-degree direction of the support plate. They will continue to rotate with the support sleeve. When the support sleeve rotates with the medium-length rivet to the 135-degree position of the support plate, the T-shaped slide rod inside the support sleeve moves to the trapezoidal top block position at the top of the U-shaped guide ring. At this time, the T-shaped slide rod moves upward with the pusher, and the pusher pushes the rivet upward by one section and above the U-shaped transfer slide rail. At this time, the rivet is blocked by the screening slide rail at this point and discharged along the screening port position.

[0028] S6. The short rivets will not be pushed out of the support sleeve by the pusher, but will continue to rotate with the support sleeve and finally be discharged from the end of the U-shaped transfer slide rail and transferred to the next process.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In this invention, through the coordinated use of components such as the support sleeve, U-shaped guide ring, and detection mechanism, when the rivet is drilled and transported to the next process via the U-shaped transfer slide rail, the rivet will enter the interior of the support sleeve. Then, the detection mechanism inside the support sleeve will detect the drilling of the rivet. If the drilling is off-center or the rivet surface is deformed, the detection mechanism can push it out of the support sleeve and remove it. Qualified rivets continue to be transported along the U-shaped transfer slide rail, so that the rivet is automatically inspected during transportation, avoiding rivets with off-center holes from affecting the use effect.

[0031] In this invention, by using components such as the support sleeve, U-shaped guide ring, and screening mechanism in combination, when the support sleeve rotates with the detected rivets to the support plate at 90 degrees, 135 degrees, and 180 degrees, it can screen longer, medium, and shorter rivets respectively, which facilitates automatic screening during rivet transportation and improves ease of use.

[0032] In this invention, the rivets can be inserted into the corresponding support sleeves in stages on the U-shaped transfer slide rail through the coordinated use of components such as the support plate, U-shaped transfer slide rail, and feeding mechanism, thereby facilitating the detection and screening of rivets during the transfer and conveying process and improving the detection and screening effect. Attached Figure Description

[0033] Figure 1 This is a top sectional view showing the positions of the support plate and the U-shaped transfer slide rail of the present invention;

[0034] Figure 2 For the present invention Figure 1 Enlarged view of the structure at point A in the middle;

[0035] Figure 3 For the present invention Figure 1 Enlarged view of the structure at point B;

[0036] Figure 4 For the present invention Figure 1 Enlarged view of the structure at point C;

[0037] Figure 5 This is a top sectional view showing the positions of the support disk and the U-shaped guide ring of the present invention;

[0038] Figure 6 This is a top view of the location of the U-shaped transfer slide rail and the screening port of the present invention;

[0039] Figure 7 This is a side sectional view of a portion of the support sleeve and U-shaped guide ring of the present invention;

[0040] Figure 8 This is a side sectional view of a partial location of the trapezoidal protrusion roller of the present invention;

[0041] Figure 9This is a side sectional view of the support sleeve of the present invention moving to a position of 90 degrees to the support plate;

[0042] Figure 10 This is a side sectional view of the support sleeve of the present invention moved to a position of 135 degrees to the support plate;

[0043] Figure 11 This is a top view showing the positions of the U-shaped guide ring and the trapezoidal protrusion of the present invention;

[0044] Figure 12 This is a perspective view of a portion of the support plate and the U-shaped transfer slide rail of the present invention;

[0045] Figure 13 This is a perspective view of the baffle and roller of the present invention;

[0046] Figure 14 This is a side sectional view of a portion of the circular gear and the support disk of the present invention;

[0047] Figure 15 This is a perspective view of the unloading hook and rotating rod of the present invention.

[0048] In the diagram: 1. Support plate; 2. Gear ring; 3. Motor; 4. Transmission gear; 5. U-shaped guide ring; 6. Support sleeve; 7. Annular trough; 8. U-shaped transfer slide rail; 9. Feeding mechanism; 901. Support plate; 902. Pad block; 903. Adjusting plate; 904. Compression spring; 905. Pressure roller; 906. Inclined groove; 907. Limiting plate; 908. Feeding trough; 909. Arc-shaped pressure plate; 10. Detection mechanism; 1001. Detection guide groove; 1002. Trapezoidal protrusion; 1003. Trapezoidal top block; 10 04. T-shaped groove; 1005. Slide groove; 1006. T-shaped slide bar; 1007. Compression spring; 1008. Push cylinder; 1009. Detection rod; 1010. Rotating roller; 1011. Moving groove; 1012. Baffle; 1013. Roller; 1014. Return spring; 11. Screening mechanism; 1101. Mounting block; 1102. Rotating rod; 1103. Circular gear; 1104. Torsion spring; 1105. Unloading hook; 1106. Screening port; 1107. Screening slide rail; 12. Screening rack. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Please see Figures 1 to 15This invention provides a technical solution: a process transfer hub for fastener production, comprising a support plate 1, a gear ring 2 rotatably connected to the inner bottom surface of the support plate 1, a motor 3 fixedly connected to the inner bottom surface of the support plate 1, and a transmission gear 4 fixedly connected to the rotating end of the motor 3. The side wall of the transmission gear 4 meshes with the inner ring of the gear ring 2. It should be noted that a support bearing is fixedly connected between the bottom of the gear ring 2 and the inner bottom surface of the support plate 1, enabling the gear ring 2 to rotate stably inside the support plate 1. Furthermore, after starting the motor 3, the transmission gear 4 rotates the gear ring 2 clockwise.

[0051] A U-shaped guide ring 5 is fixedly connected to the inner bottom surface of the support plate 1. The U-shaped guide ring 5 is positioned between the inner ring of the support plate 1 and the outer ring of the toothed ring 2. Eight support sleeves 6 are equidistantly connected to the middle of the U-shaped guide ring 5. One side of the support sleeve 6 is fixedly connected to the outer ring of the toothed ring 2. An annular groove 7 is formed in the inner ring of the support plate 1, and the other side of the support sleeve 6 is slidably connected to the inside of the annular groove 7. It should be noted that connecting rods are fixedly connected to both sides of the support sleeve 6. One connecting rod is fixedly connected to the outer ring of the toothed ring 2, and the other connecting rod is slidably connected to the inside of the groove, so that the toothed ring 2 can stably slide along the trajectory of the annular groove 7 with the support sleeve 6.

[0052] A U-shaped transfer slide rail 8 is fixedly connected to the top of the support plate 1. A feeding mechanism 9, which cooperates with the U-shaped transfer slide rail 8, is movably connected to the left side of the support plate 1. The side wall of the feeding mechanism 9 overlaps with the side wall of the adjacent support sleeve 6. It should be noted that the U-shaped transfer slide rail 8 is provided with an inclined angle to facilitate the sliding of rivets on the surface of the U-shaped transfer slide rail 8. This U-shaped transfer slide rail 8 is existing technology, allowing the rivets to slide between the two tracks of the U-shaped transfer slide rail 8 through the protruding end, which will not be described in detail here. At the same time, the right side of the U-shaped transfer slide rail 8 has the same trajectory as the right side of the U-shaped guide ring 5.

[0053] A detection mechanism 10 is movably connected between the interior of the U-shaped guide ring 5 and the surface of the support sleeve 6. A screening mechanism 11 is movably connected between the right side of the support plate 1 and the U-shaped transfer slide rail 8. A screening rack 12 that cooperates with the screening mechanism 11 is fixedly connected to the side wall of the support sleeve 6. It should be noted that the screening rack 12 is set at a height higher than the annular trough 7 and the arc-shaped pressure plate 909, while the arc-shaped pressure plate 909 is set at a height higher than the annular trough 7, to avoid interference during use.

[0054] In this embodiment, as Figures 1 to 15As shown, the feeding mechanism 9 includes a support plate 901, which is fixedly connected to the left side of the support plate 1. A pad 902 is fixedly connected to the top of the support plate 901, and an adjusting plate 903 is slidably connected to the middle of the pad 902. A compression spring 904 is fixedly connected between the left side of the adjusting plate 903 and the side wall of the pad 902, and a pressure roller 905 is rotatably connected to the right side of the adjusting plate 903. It should be noted that the adjusting plate 903 consists of a rectangular plate and adjusting rods on both sides, allowing the adjusting plate 903 to slide in the middle of the pad 902 via the adjusting rod on the left side, and the compression spring 904 is movably sleeved on the surface of the adjusting rod on the left side of the adjusting plate 903.

[0055] The adjusting plate 903 has symmetrically arranged inclined grooves 906 in its middle. The top of the support plate 901 is symmetrically slidably connected to limiting plates 907 that cooperate with the U-shaped transfer slide rail 8. The tops of the two limiting plates 907 are respectively slidably connected inside the two inclined grooves 906. It should be noted that when the adjusting plate 903 moves to the right, the rivet falls between the two limiting plates 907. When the adjusting plate 903 moves to the left, the left limiting plate 907 limits the next rivet, while the right limiting plate 907 releases the limit on the previous rivet, allowing the rivet to slide to the right.

[0056] A feeding groove 908 is provided on the right side of the support plate 1. An arc-shaped pressure plate 909 that cooperates with the support sleeve 6 is rotatably connected inside the feeding groove 908. The side wall of the pressure roller 905 overlaps with the side wall of the arc-shaped pressure plate 909.

[0057] In this embodiment, as Figures 1 to 15 As shown, the top of the support plate 901 is symmetrically provided with support grooves, and two limiting plates 907 are slidably connected to the inside of the two support grooves respectively. The top of the limiting plate 907 is fixedly connected with a limiting pin, and the limiting plate 907 is slidably connected to the inside of the inclined groove 906 through the limiting pin. It should be noted that the two limiting plates 907 are set in a staggered manner. Through the reciprocating movement of the two limiting plates 907, the hollow rivet is transported to the right side of the U-shaped transfer slide rail 8 and enters the corresponding support sleeve 6 in stages. The first end of the left side of the U-shaped transfer slide rail 8 is inclined to ensure that the rivet can slide stably into the inside of the support sleeve 6.

[0058] In this embodiment, as Figures 1 to 15 As shown, the detection mechanism 10 includes two detection guide grooves 1001. The two detection guide grooves 1001 are symmetrically opened on both sides of the inner wall of the U-shaped guide ring 5. A trapezoidal protrusion 1002 is symmetrically fixedly connected to the outer wall of the right side of the U-shaped guide ring 5, and a trapezoidal top block 1003 is symmetrically fixedly connected to the top of the right side of the U-shaped guide ring 5.

[0059] The support sleeve 6 has a T-shaped groove 1004 in the middle, and a sliding groove 1005 is provided in the lower part of the inner wall of the T-shaped groove 1004. A T-shaped sliding rod 1006 that cooperates with the trapezoidal top block 1003 is slidably connected inside the sliding groove 1005. A compression spring 1007 is fixedly connected between the top of the T-shaped sliding rod 1006 and the inner top surface of the sliding groove 1005. A pusher 1008 is fixedly connected to the side wall of the T-shaped sliding rod 1006. The pusher 1008 is slidably connected to the lower part of the inner wall of the T-shaped groove 1004. It should be noted that the bottom of the T-shaped slide rod 1006 is rotatably connected to a pulley through the slide groove 1005. When the support sleeve 6 moves the T-shaped slide rod 1006 to the position of the trapezoidal top block 1003, the T-shaped slide rod 1006 can move the pusher 1008 upward on the inner wall of the T-shaped groove 1004, causing the hollow rivet to be pushed and pressed upward inside the support sleeve 6. The pusher 1008 can only move upward a short distance and cannot completely push the rivet out of the support sleeve 6, so that shorter rivets will not be pushed out by the pusher 1008. The pusher 1008 is made of magnetic material. When the rivet enters the interior of the support sleeve 6, the magnetic pusher 1008 can exert a restraining force on the rivet, so that the rivet can move synchronously with the pusher 1008.

[0060] A detection rod 1009 is slidably connected inside the push cylinder 1008. A rotating roller 1010 is rotatably connected to the lower part of the detection rod 1009. The two ends of the rotating roller 1010 are slidably connected to the inside of two detection guide grooves 1001. It should be noted that: a protrusion is provided on the trajectory of the detection guide groove 1001, so that when the rotating roller 1010 below the detection rod 1009 moves to the protrusion position, it can lift the detection rod 1009 upward and push the unqualified rivet out from inside the support sleeve 6; the trapezoidal protrusion 1002 and the protrusion position of the detection guide groove 1001 are both set at the 45-degree direction of the U-shaped guide ring 5, and the trapezoidal top block 1003 is set at the 135-degree direction of the U-shaped guide ring 5.

[0061] The lower part of the inner wall of the support sleeve 6 is provided with a moving groove 1011. A baffle 1012 is slidably connected inside the moving groove 1011. The upper part of the baffle 1012 is slidably connected inside the T-shaped groove 1004. The bottom of the baffle 1012 passes through the moving groove 1011 and is symmetrically connected to rollers 1013. The bottoms of the two rollers 1013 respectively rest on the tops of the two trapezoidal protrusions 1002. A return spring 1014 is movably sleeved on the lower part of the baffle 1012. It should be noted that when the support sleeve 6 rotates on the surface of the U-shaped guide ring 5 to the position of the trapezoidal protrusion 1002, the rollers 1013 move along the trajectory of the trapezoidal protrusion 1002, which will move the baffle 1012 upward to position the rivet in the upper part of the T-shaped groove 1004 during the detection process, so as to prevent the rivet from shaking in the upper part of the T-shaped groove 1004 and affecting the detection effect.

[0062] In this embodiment, as Figures 1 to 15As shown, a stop block is fixedly connected to the lower part of the inner wall of the moving groove 1011, and vertical rods are symmetrically fixedly connected to the bottom of the baffle 1012. Both vertical rods are movably inserted through the middle of the stop block. The top of the return spring 1014 overlaps with the bottom of the stop block, and the bottom of the return spring 1014 overlaps with the top of the roller 1013. It should be noted that after the rivet hole inspection is completed, the roller 1013 releases its contact with the trapezoidal protrusion 1002, causing the baffle 1012 to move down and release the rivet from its limiting position, facilitating the subsequent screening of rivets of different lengths.

[0063] The upper sidewall of the baffle 1012 is designed as an inclined surface.

[0064] In this embodiment, as Figures 1 to 15 As shown, the screening mechanism 11 includes two mounting blocks 1101, which are symmetrically and fixedly connected to the right side of the support plate 1. A rotating rod 1102 is rotatably connected between the two mounting blocks 1101. A circular gear 1103 that cooperates with the screening rack 12 is fixedly sleeved in the middle of the rotating rod 1102. A torsion spring 1104 is fixedly connected between the side wall of the circular gear 1103 and the side wall of the adjacent mounting block 1101. A discharge hook 1105 is fixedly connected to the top of the rotating rod 1102. It should be noted that the mounting position of the circular gear 1103, the trapezoidal protrusion 1002, and the detection guide groove 1001 is the same, all of which are installed at a 45-degree angle to the support plate 1.

[0065] The U-shaped transfer slide rail 8 has two screening ports 1106 on its side wall. Two screening slide rails 1107 are fixedly connected to the right side of the support plate 1, with each screening slide rail 1107 corresponding to one of the two screening ports 1106. It should be noted that one screening port 1106 and its corresponding screening slide rail 1107 are both located at a 135-degree angle to the support plate 1, coinciding with the installation position of the trapezoidal top block 1003. The other screening port 1106 and its screening slide rail 1107 are located at a 90-degree angle to the support plate 1. The screening slide rail 1107 is positioned higher than the U-shaped transfer slide rail 8 to avoid interference during use.

[0066] In this embodiment, as Figures 1 to 15 As shown, a through groove that mates with the spur gear 1103 is provided at a 45-degree angle on the support plate 1, and a discharge plate that mates with the discharge hook 1105 is fixedly connected to the side wall of the support plate 1. It should be noted that when the screening rack 12 on the support sleeve 6 moves to the position of the spur gear 1103, the screening rack 12 rotates counterclockwise with the spur gear 1103, and the discharge hook 1105 pulls out the unqualified hollow rivets ejected during the inspection process and discharges them onto the surface of the discharge plate.

[0067] The surface of the support plate 1 has three discharge slots, which correspond one-to-one with the lower part of the U-shaped transfer slide rail 8 and the two screening slide rails 1107. It should be noted that the hollow rivets of different lengths after screening are removed from the support plate 1 from the corresponding discharge slot positions.

[0068] In this embodiment, as Figures 1 to 15 As shown, a method for using a process transfer hub in fastener production includes the following steps:

[0069] S1. When the hollow rivet after drilling is completed is transported to the next process via the U-shaped transfer slide rail 8, the hollow rivet sliding on the U-shaped transfer slide rail 8 stops transporting under the obstruction of the two limiting plates 907. At this time, the motor 3 is started, and the motor 3 drives the transmission gear 4 to mesh with the inner ring of the gear ring 2, so that the gear ring 2 carries eight support sleeves 6 to rotate circumferentially inside the U-shaped guide ring 5. When one of the support sleeves 6 rotates to the position of the arc-shaped pressure plate 909, the arc-shaped pressure plate 909 is pressed to move outward of the support plate 1, so that the arc-shaped pressure plate 909 presses against the pressure roller 905 and the adjusting plate 903 to move to the left. Under the action of the two inclined grooves 906 in the middle of the adjusting plate 903, the two limiting plates 907 move in a staggered manner, and release the limitation on the rivet between the two limiting plates 907, so that the rivet continues to move to the right and falls into the support sleeve 6 on the sliding track.

[0070] S2. Then, as the support sleeve 6 continues to move along the trajectory of the U-shaped guide ring 5, the roller 1013 at the bottom of the inner baffle 1012 of the support sleeve 6 moves to the position of the trapezoidal protrusions 1002 on both sides of the U-shaped guide ring 5, so that the baffle 1012 rises inside the moving groove 1011 and moves to the inside of the T-shaped groove 1004, thereby limiting the rivets that enter the support sleeve 6.

[0071] S3. Then, the support sleeve 6 continues to rotate to the position of the sprocket 1103 on the right side of the support plate 1. At the same time, the detection rod 1009 and the rotating roller 1010 inside the support sleeve 6 move along the trajectory of the detection guide groove 1001 to the protrusion. At this time, the rotating roller 1010 carries the detection rod 1009 and gradually moves upward along the protrusion trajectory of the detection guide groove 1001, so that the detection rod 1009 is pushed out from the inside of the push cylinder 1008 and inserted into the middle of the hollow rivet to be tested. When the surface of the hollow rivet is deformed or the hole is misaligned, etc., the detection rod 1009 pushes the hollow rivet out from the inside of the support sleeve 6. At the same time, as the screening rack 12 on the side wall of the support sleeve 6 meshes with the side wall of the sprocket 1103, the sprocket 1103 carries the rotating rod 1102 and the unloading hook 1105 to rotate counterclockwise, hooking down the pushed-out rivet and discharging it. The qualified hollow rivet will not be pushed up after the detection rod 1009 is inserted into the hole.

[0072] S4. After passing the test, the hollow rivet continues to be transported inside the support plate 1 along with the support sleeve 6. At this time, the roller 1013 at the bottom of the baffle 1012 releases its contact with the trapezoidal protrusion 1002. Under the action of the return spring 1014, the baffle 1012 moves into the moving groove 1011. When the support sleeve 6 moves to the position of the support plate 1 at a 90-degree angle, the longer rivet falls into the T-shaped groove 1004 and is higher than the U-shaped transfer slide rail 8. After the long rivet moves to the position of the screening slide rail 1107 at a 90-degree angle on the support plate 1, it is blocked by the screening slide rail 1107 and discharged along the screening port 1106 at this position.

[0073] S5. Rivets of medium and short lengths will not be blocked by the screening slide rail 1107 at a 90-degree angle on the support plate 1. They will continue to rotate with the support sleeve 6. When the support sleeve 6 rotates with the medium-length rivet to the 135-degree position of the support plate 1, the T-shaped slide rod 1006 inside the support sleeve 6 moves to the position of the trapezoidal top block 1003 at the top of the U-shaped guide ring 5. At this time, the T-shaped slide rod 1006 moves upward with the pusher 1008. The pusher 1008 pushes the rivet upward by one section and above the U-shaped transfer slide rail 8. At this time, the rivet is blocked by the screening slide rail 1107 at this position and discharged along the screening port 1106.

[0074] S6. The short rivets will not be pushed out of the support sleeve 6 by the pusher 1008, but will still rotate with the support sleeve 6 and finally be discharged from the tail end of the U-shaped transfer slide rail 8 and transferred to the next process.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process transfer hub for fastener production comprising a support disc (1) characterised in that: The inner bottom surface of the support disk (1) is rotatably connected to a gear ring (2), and the inner bottom surface of the support disk (1) is fixedly connected to a motor (3). The rotating end of the motor (3) is fixedly connected to a transmission gear (4), and the side wall of the transmission gear (4) meshes with the inner ring of the gear ring (2). A U-shaped guide ring (5) is fixedly connected to the inner bottom surface of the support disk (1). The U-shaped guide ring (5) is located between the inner ring of the support disk (1) and the outer ring of the toothed ring (2). Eight support sleeves (6) are equidistantly connected to the middle of the U-shaped guide ring (5). One side of the support sleeve (6) is fixedly connected to the outer ring of the toothed ring (2). An annular groove (7) is opened in the inner ring of the support disk (1). The other side of the support sleeve (6) is slidably connected to the inside of the annular groove (7). The top of the support plate (1) is fixedly connected to a U-shaped transfer slide rail (8), and the left side of the support plate (1) is movably connected to a feeding mechanism (9) that cooperates with the U-shaped transfer slide rail (8). The side wall of the feeding mechanism (9) overlaps with the side wall of the adjacent support sleeve (6). A detection mechanism (10) is movably connected between the interior of the U-shaped guide ring (5) and the surface of the support sleeve (6). A screening mechanism (11) is movably connected between the right side of the support plate (1) and the U-shaped transfer slide rail (8). A screening rack (12) that cooperates with the screening mechanism (11) is fixedly connected to the side wall of the support sleeve (6). The detection mechanism (10) includes a detection guide groove (1001), and there are two detection guide grooves (1001). The two detection guide grooves (1001) are symmetrically opened on both sides of the inner wall of the U-shaped guide ring (5). A trapezoidal protrusion (1002) is symmetrically fixedly connected to the outer wall of the right side of the U-shaped guide ring (5). A trapezoidal top block (1003) is symmetrically fixedly connected to the top of the right side of the U-shaped guide ring (5). The protrusions of the trapezoidal protrusion (1002) and the detection guide groove (1001) are both set at the 45-degree position of the U-shaped guide ring (5). The trapezoidal top block (1003) is set at the 135-degree position of the U-shaped guide ring (5). The support sleeve (6) has a T-shaped groove (1004) in the middle, and a sliding groove (1005) is provided in the lower part of the inner wall of the T-shaped groove (1004). A T-shaped sliding rod (1006) that cooperates with the trapezoidal top block (1003) is slidably connected inside the sliding groove (1005). A compression spring (1007) is fixedly connected between the top of the T-shaped sliding rod (1006) and the inner top surface of the sliding groove (1005). A push cylinder (1008) is fixedly connected to the side wall of the T-shaped sliding rod (1006). The push cylinder (1008) is slidably connected to the lower part of the inner wall of the T-shaped groove (1004). The push cylinder (1008) is slidably connected to a detection rod (1009), and the lower part of the detection rod (1009) is rotatably connected to a rotating rod (1010). The two ends of the rotating rod (1010) are slidably connected to the interiors of the two detection guide grooves (1001). The lower part of the inner wall of the support sleeve (6) is provided with a moving groove (1011). A baffle (1012) is slidably connected inside the moving groove (1011). The upper part of the baffle (1012) is slidably connected inside the T-shaped groove (1004). The bottom of the baffle (1012) passes through the moving groove (1011) and is symmetrically connected with rollers (1013). The bottoms of the two rollers (1013) respectively overlap the tops of the two trapezoidal protrusions (1002). A return spring (1014) is movably sleeved on the lower part of the baffle (1012). The screening mechanism (11) includes two mounting blocks (1101), which are symmetrically fixedly connected to the right side of the support plate (1). A rotating rod (1102) is rotatably connected between the two mounting blocks (1101). A circular gear (1103) that cooperates with the screening rack (12) is fixedly sleeved in the middle of the rotating rod (1102). A torsion spring (1104) is fixedly connected between the side wall of the circular gear (1103) and the side wall of the adjacent mounting block (1101). A discharge hook (1105) is fixedly connected to the top of the rotating rod (1102). The installation positions of the circular gear (1103), the trapezoidal protrusion (1002), and the detection guide groove (1001) are consistent, and they are all installed at a 45-degree angle to the support plate (1). The side wall of the U-shaped transfer slide rail (8) has two screening ports (1106), one of which is installed at the same position as the trapezoidal top block (1003). The right side of the support plate (1) is fixedly connected to two screening slide rails (1107), and the two screening slide rails (1107) correspond one-to-one with the two screening ports (1106).

2. The process transfer hub for fastener production of claim 1, wherein: The feeding mechanism (9) includes a support plate (901), which is fixedly connected to the left side of the support plate (1). A pad (902) is fixedly connected to the top of the support plate (901), and an adjusting plate (903) is slidably connected to the middle of the pad (902). A compression spring (904) is fixedly connected between the left side of the adjusting plate (903) and the side wall of the pad (902), and a pressure roller (905) is rotatably connected to the right side of the adjusting plate (903). The adjusting plate (903) has symmetrically opened inclined grooves (906) in the middle, and the top of the support plate (901) is symmetrically slidably connected with limiting plates (907) that cooperate with the U-shaped transfer slide rail (8). The tops of the two limiting plates (907) are respectively slidably connected inside the two inclined grooves (906). The support plate (1) has a feeding groove (908) on its left side. The feeding groove (908) is rotatably connected to an arc-shaped pressure plate (909) that cooperates with the support sleeve (6). The side wall of the pressure roller (905) overlaps with the side wall of the arc-shaped pressure plate (909).

3. The process transfer hub for fastener production of claim 2, wherein: The top of the support plate (901) is symmetrically provided with support grooves, and the two limiting plates (907) are slidably connected inside the two support grooves respectively. The top of the limiting plate (907) is fixedly connected with a limiting pin, and the limiting plate (907) is slidably connected inside the inclined groove (906) through the limiting pin.

4. The process transfer hub for fastener production of claim 3, wherein: A stop block is fixedly connected to the lower part of the inner wall of the moving groove (1011), and vertical rods are symmetrically fixedly connected to the bottom of the baffle (1012). Both vertical rods are movably inserted through the middle of the stop block. The top of the return spring (1014) overlaps with the bottom of the stop block, and the bottom of the return spring (1014) overlaps with the top of the roller (1013). The upper sidewall of the baffle (1012) is set as an inclined surface.

5. The process transfer hub for fastener production of claim 4, wherein: The support plate (1) has a through groove at a 45-degree angle that mates with the spherical gear (1103), and the side wall of the support plate (1) is fixedly connected with a discharge plate that mates with the discharge hook (1105). The surface of the support plate (1) is provided with three discharge grooves. The three discharge grooves correspond one-to-one with the lower part of the tail end of the U-shaped transfer slide rail (8) and the two screening slide rails (1107). The two screening slide rails (1107) are respectively set at the 135-degree and 90-degree positions of the support plate (1).

6. A method of using a fastener production process transfer hub, the method comprising: Using a fastener manufacturing process transfer hub as described in any one of claims 2-5, the process includes the following steps: S1. When the hollow rivet after drilling is completed is transported to the next process via the U-shaped transfer slide rail (8), the hollow rivet sliding on the U-shaped transfer slide rail (8) stops being transported by the two limit plates (907). At this time, the motor (3) is started, and the motor (3) drives the transmission gear (4) to mesh with the inner ring of the gear ring (2), so that the gear ring (2) carries eight support sleeves (6) to rotate circumferentially inside the U-shaped guide ring (5). When one of the support sleeves (6) rotates to the arc-shaped pressure plate (907), When in position 09), the arc-shaped pressure plate (909) is pressed and moves outward to the support plate (1), causing the arc-shaped pressure plate (909) to press against the pressure roller (905) and the adjusting plate (903) to move to the left. Under the action of the two inclined grooves (906) in the middle of the adjusting plate (903), the two limiting plates (907) move in a staggered manner, and release the limitation on the hollow rivet between the two limiting plates (907), so that the hollow rivet continues to move to the right and falls into the support sleeve (6) on the sliding track; S2. Then, as the support sleeve (6) continues to move along the trajectory of the U-shaped guide ring (5), the roller (1013) at the bottom of the inner baffle (1012) of the support sleeve (6) moves to the position of the trapezoidal protrusions (1002) on both sides of the U-shaped guide ring (5), so that the baffle (1012) rises inside the moving groove (1011) and moves to the inside of the T-shaped groove (1004), thereby limiting the hollow rivets that enter the support sleeve (6). S3. Subsequently, the support sleeve (6) continues to rotate to the position of the sprocket (1103) on the right side of the support plate (1). At the same time, the detection rod (1009) and the rotating roller (1010) inside the support sleeve (6) move along the trajectory of the detection guide groove (1001) to the protrusion of the detection guide groove (1001). At this time, the rotating roller (1010) carries the detection rod (1009) and gradually moves upward along the protrusion trajectory of the detection guide groove (1001), so that the detection rod (1009) is pushed out from the inside of the push cylinder (1008) and inserted into the object to be inspected. When the hollow rivet is deformed or misaligned, the detection rod (1009) pushes the hollow rivet out of the support sleeve (6). At the same time, as the screening rack (12) on the side wall of the support sleeve (6) meshes with the side wall of the spur gear (1103), the spur gear (1103) rotates counterclockwise with the rotating rod (1102) and the unloading hook (1105), hooking the pushed-out hollow rivet down and discharging it. The qualified hollow rivet will not be pushed up after the detection rod (1009) is inserted into the hole. S4. After passing the test, the hollow rivet continues to be transported inside the support plate (1) along with the support sleeve (6). At this time, the roller (1013) at the bottom of the baffle (1012) releases contact with the trapezoidal protrusion (1002). Under the action of the return spring (1014), the baffle (1012) moves into the moving groove (1011). When the support sleeve (6) moves to the position of the support plate (1) at ninety degrees, the long hollow rivet falls into the T-shaped groove (1004) and is higher than the U-shaped transfer slide rail (8). After the long hollow rivet moves to the position of the screening slide rail (1107) at ninety degrees of the support plate (1), it is blocked by the screening slide rail (1107) and discharged along the screening port (1106) at this position. S5. Hollow rivets of medium and short lengths will not be blocked by the screening slide rail (1107) at the 90-degree direction of the support plate (1) and will continue to rotate with the support sleeve (6). When the support sleeve (6) rotates with the hollow rivets of medium length to the 135-degree position of the support plate (1), the T-shaped slide rod (1006) inside the support sleeve (6) moves to the position of the trapezoidal top block (1003) at the top of the U-shaped guide ring (5). At this time, the T-shaped slide rod (1006) moves upward with the pusher (1008), and the pusher (1008) pushes the hollow rivet of medium length upward by one section and above the U-shaped transfer slide rail (8). At this time, the hollow rivet of medium length is blocked by the screening slide rail (1107) at this point and discharged along the screening port (1106). S6. The short hollow rivets will not be pushed out of the support sleeve (6) by the pusher (1008), but will still rotate with the support sleeve (6) and finally be discharged from the tail end of the U-shaped transfer slide rail (8) and transferred to the next process.

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