Visual detection and boxing equipment for small rods

Abstract

This invention relates to the field of mechanical equipment for the inspection and packaging of bar stock, specifically disclosing a visual inspection and packaging device for small bar stock. The device includes a base and a feeding conveyor, a conveying inspection and rejection device, and a discharging and packaging device. The conveying inspection and rejection device comprises a conveyor belt inspection and rejection device, a material distribution device, and a turntable inspection and rejection device. The conveyor belt inspection and rejection device is connected to the feeding conveyor. The input end of the material distribution device corresponds to the conveyor belt inspection and rejection device, and its output end corresponds to the turntable inspection and rejection device. The conveyor belt inspection and rejection device includes a conveyor belt, a first visual inspection device, and a first rejection and discharge device. The turntable inspection and rejection device includes an indexing turntable with an independent bar stock groove, a second visual inspection device, a second rejection and discharge device, and a qualified unloading device. This equipment is particularly suitable for inspecting and screening small bar stock in a single conveying operation, considering factors such as product size and surface condition, and can automatically package the stock to meet the required packaging requirements.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment for inspecting and packaging bar stock. Background Technology

[0002] The inspection of small bars, such as short and small diameter metal bars, requires the inspection of various surface defects, such as pinholes, scratches, surface grooves, surface contamination, water stains, blistering of the coating, and coating that is too short. It also requires the inspection of various dimensional defects, such as diameter that is too small, uneven ends, lack of chamfering, length that is too short, length that is too long, flat material, and straightness that does not meet the requirements. In addition, the unqualified bars usually need to be screened out during the inspection process, while qualified products can be directly boxed for subsequent packaging.

[0003] Currently, although the rapid development of intelligent technology is gradually replacing many traditional processes that rely on manual visual inspection, screening, and packaging with automated, intelligent, and vision-processing equipment, existing inspection equipment is still relatively basic and single-function. It struggles to simultaneously screen out and remove products with different defects, resulting in some unqualified products still containing other defects in the finished product, failing to meet inspection requirements. Furthermore, for the aforementioned application of inspecting small metal rods, there is no directly applicable mechanical equipment for effectively inspecting, screening, and packaging these rods, from conveying to visual inspection and then to rejection and packaging. Therefore, there is an urgent need for equipment and methods that can reliably achieve the required results for surface inspection, dimensional inspection, rejection, and packaging of small rods to meet the production needs of these small rod products. Summary of the Invention

[0004] The purpose of this invention is to provide a visual inspection and boxing device for small rods that is particularly suitable for inspecting and screening various aspects such as product size and surface condition in a single conveying process, and can automatically box the rods to meet the required boxing requirements.

[0005] To achieve the above objectives, the technical solution of the present invention is: a visual inspection and boxing device for small bar stock, comprising a base and a feeding conveying device, a conveying inspection and rejection device, and a discharging and boxing device mounted on the base. The conveying inspection and rejection device includes a conveyor belt inspection and rejection device, a material distribution device, and a turntable inspection and rejection device. The input end of the conveyor belt inspection and rejection device is connected to the output end of the feeding conveying device, and the input end of the material distribution device corresponds to the output end of the conveyor belt inspection and rejection device, and its output end corresponds to the turntable inspection and rejection device. The conveyor belt detection and rejection device includes a conveyor belt, at least one set of first visual inspection devices fixedly mounted above the conveyor belt, and a first rejection and discharge device correspondingly set on the side of the conveyor belt between the first visual inspection devices and the fabric device. The conveyor belt is provided with a slender bar groove that makes the bar axis direction consistent with the conveyor belt conveying direction and can orderly convey the bar one by one through the shooting range of the first visual inspection devices and the first rejection and discharge device. The turntable inspection and rejection device includes an indexing turntable with independent bar slots evenly distributed around its upper surface, allowing the axial direction of the bar to be radially aligned and embedded into the slots. It also includes at least one set of second vision inspection equipment, a second rejection and discharge device, and a qualified discharge device, all set at a fixed workstation. When the indexing turntable rotates, each independent bar slot passes sequentially through the output end of the feeding device, the second vision inspection equipment, the second rejection and discharge device, and the qualified discharge device. The qualified discharge device is located below the indexing turntable and has a structure that enables the bar to be horizontally conveyed and discharged one by one. The fabric feeding device is a structure that allows the bar stock to be inserted into the corresponding independent bar stock slots one by one for fabric feeding; the feeding and boxing device is located in the base below the turntable detection and rejection device, and its structure is designed to automatically adjust the orientation to achieve orderly boxing.

[0006] The fabric feeding device includes a fabric hopper, a fabric wheel, a fabric drive motor, and a fabric inlet. The fabric hopper includes a hopper body and a fabric wheel housing connected to the lower end of the hopper body. The hopper body includes enclosing sidewalls and an inclined bottom plate connected to the lower edge of the sidewalls. The fabric wheel housing has an inner diameter profile that can be nested with the fabric wheel, and the axial sidewall of the fabric wheel housing is connected to the lower part of the inclined bottom plate to form a communicating fabric inlet. The fabric wheel is coaxially mounted inside the fabric wheel housing, and one end of it is connected to the output end of the fabric drive motor and driven to rotate. The outer circumference of the fabric wheel is evenly spaced with independent fabric grooves aligned with the axis of the fabric wheel. The lower side wall of the fabric wheel housing has an axially extending fabric drop slit that allows only one bar of fabric to pass through at a time. The fabric drop slit is sequentially located above each independent fabric groove, and the two ends of the length of the fabric drop slit correspond to the two ends of the length of the independent fabric groove. The bar of fabric can be inserted into the independent fabric groove on the wheel from the fabric inlet and then fall into the independent fabric groove from the fabric drop slit. The fabric inlet includes an inlet end and an outlet end. The outlet end corresponds to the top of the fabric hopper and is angularly arranged so that the length direction of the bar of fabric tends to be parallel to the axial direction of the fabric wheel after it falls in. The inlet end to the outlet end has an inlet sliding structure that facilitates the feeding of fabric into the fabric hopper.

[0007] The indexing turntable includes a fixed plate fixedly mounted on a machine base, a turntable drive motor assembly mounted on a machine base below the fixed plate, and a rotating plate mounted on the machine base corresponding to the center of the fixed plate and corresponding to the upper surface of the fixed plate; the fixed plate is provided with a receiving section ring, and the rotating plate includes a bar material groove section ring corresponding to the upper surface of the receiving section ring, and the independent bar material groove is opened through the bar material groove section ring.

[0008] The qualified material unloading device includes a qualified material unloading station through hole on the receiving section ring that can be sequentially positioned directly below each independent material feeding groove; a fixed supplementary block set inside the qualified material unloading station through hole with its upper surface flush with the upper surface of the receiving section ring; a movable opening and closing block set inside the qualified material unloading station through hole with its upper surface flush with the upper surface of the receiving section ring; an opening and closing cylinder mounted on a fixed plate or base and outputting to the movable opening and closing block; and a qualified material unloading device corresponding to the bottom of the qualified material unloading station through hole. The fixed supplementary block and the movable opening and closing block have a meshing concave and convex tooth structure on opposite sides. When the movable opening and closing block moves to close the qualified material unloading station through hole, it moves in the direction of separating the concave and convex tooth structure but does not completely disengage.

[0009] The second rejection and discharge device includes a through hole on the receiving section ring that corresponds to the defective product discharge station directly below the independent material feeding trough, a rolling roller mounted on the machine base that corresponds to the through hole of the defective product discharge station and is close to the upper surface of the bar material feeding trough section ring, and a defective product discharge device that corresponds to the through hole of the defective product discharge station directly below the through hole of the defective product discharge station.

[0010] The structure of the qualified material unloading device and / or the defective material unloading device includes a material unloading hopper directly below the through hole of the qualified material unloading station, a material unloading wheel housing connected to the lower end of the material unloading hopper, a material unloading wheel mounted inside the material unloading wheel housing, a vertical conveyor belt mechanism corresponding to the lower part of the material unloading wheel housing, a drive transmission motor unit for driving the conveyor belt mechanism and the material unloading wheel to rotate, and feeding grooves evenly spaced on the conveyor belt of the conveyor belt mechanism. The material unloading hopper includes a second side wall plate that is enclosed and connected, and a second inclined bottom plate that is inclined and connected to the lower edge of the second side wall plate. The material unloading wheel housing has an inner diameter profile that can be nested with the material unloading wheel, and the axial side wall of the material unloading wheel housing is connected to the lower part of the second inclined bottom plate to form a communicating material unloading inlet. The material unloading wheel is coaxially mounted inside the material unloading wheel housing, and independent material unloading grooves with the same direction as the axis of the material unloading wheel are evenly spaced on the outer circumference of the material unloading wheel. A through-hole for feeding bars to exit from an independent feeding chute is axially opened on the lower side wall of the feed wheel housing. The feeding chute corresponds sequentially to the feeding chute between two feed chutes on the conveyor belt of the lower conveyor belt mechanism, and the two ends of the length of the feeding chute correspond to the two ends of the length of the feeding chute. The bar can be inserted into the independent feeding chute from the feeding inlet and then fall into the feeding chute from the feeding chute. The feeding chute is a convex bar with an L-shaped cross-section. One end of the L-shape is connected to the conveyor belt of the conveyor belt mechanism, and the other end of the L-shape faces the opposite direction of the conveyor belt of the conveyor belt mechanism. When the bar is qualified after passing the second visual inspection device, the movable opening and closing block opens the qualified feeding station through hole to allow the bar to fall horizontally into the feeding hopper. When the bar is unqualified after passing the second visual inspection device, the movable opening and closing block closes the qualified feeding station through hole, and the bar moves to the station of the second rejection and discharge device by the rotation of the rotating disk.

[0011] The feeding and boxing device is located below the qualified feeding device and / or the second rejection and discharge device. It includes a linear motion module for the box with multiple positioning conveyor seats, a feeding lifting and moving mechanism with a positioning placement seat corresponding to the feeding station, a box placed on the positioning conveyor seat or the positioning placement seat, and a mobile lifting robotic arm with a gripper for moving the box between the positioning conveyor seat and the positioning placement seat. The feeding lifting and moving mechanism also includes a boxing transverse linear module fixedly installed on the machine base, a lifting mechanism installed on the boxing transverse linear module that drives transverse movement, the positioning placement seat installed on the lifting mechanism and driven to lift, and the mobile lifting robotic arm and the feeding lifting and moving mechanism are also equipped with a positioning sensing structure.

[0012] The feeding and conveying device is a vibratory feeder feeding and conveying device. Its output end is a conveying trough that is consistent with the slender bar material trough and connects to the input end of the conveyor belt. The lower part of the end of the conveying trough that connects to the input end of the conveyor belt has an overlapping arc-shaped opening, which allows the input end of the conveyor belt to be inserted accordingly so that the output of the conveying trough can be connected to the slender bar material trough of the horizontal section of the conveyor belt. An input guide embedding block is provided above the docking point of the conveying trough and the slender bar material trough of the horizontal section of the conveyor belt. The lower surface of the input guide embedding block is provided with an input guide groove corresponding to the conveying trough and the slender bar material trough. A photoelectric switch is provided between the input guide embedding block and the first vision inspection device.

[0013] By adopting the above technical solution, the beneficial effects of this invention are as follows: The structure of the above equipment divides the inspection into two stations: a linear conveying process and a turntable rotation process. This allows for the detection of various surface defects, such as pinholes, scratches, surface grooves, surface contamination, water stains, plating blistering, thin plating thickness, and short plating, as well as various dimensional defects, such as undersized diameter, uneven ends, lack of chamfering, short length, long length, flatness, and non-compliant straightness, all required for metal bars. Placing the detection of dimensional defects in the linear conveying process facilitates processing and calculation, while surface defect detection can be performed during the turntable rotation process. During the turntable rotation, various stations can be set up on its circumference for different operational actions. Furthermore, through the structure of the turntable, such as the further indexing turntable structure described above, both independent visual inspection of each bar and the rotation of the bar itself during the turntable's rotation allow for multiple acquisitions of visual images of the entire bar surface for inspection, processing, and analysis. These effects are not directly achievable with existing visual inspection equipment. Furthermore, the feeding and boxing of qualified products can prevent bar stock from turning around and avoid collisions and wear during boxing, meeting the necessary boxing requirements. The overall mechanical structure is reasonably compact, occupying little space, and can efficiently and effectively transport and reliably detect bar stock. It can simultaneously remove bar stock with different defects, improving detection accuracy and boxing efficiency. In summary, the above-mentioned objectives of this invention are achieved, making it particularly suitable for the detection of small bar stock. Attached Figure Description

[0014] Figure 1 This invention relates to a schematic diagram of the overall structure of a visual inspection and packaging equipment for small rod materials; Figure 2 This is a schematic diagram of the structure between the feeding and conveying device and the conveyor belt involved in the present invention; Figure 3 This is a schematic diagram of the fabric-making device involved in the present invention; Figure 4 This is an exploded and partial cross-sectional structural diagram of the indexing turntable involved in this invention; Figure 5 This is a schematic diagram of the structure of the qualified feeding device involved in the present invention; Figure 6 This is a schematic diagram of the feeding and boxing device involved in the present invention.

[0015] In the picture: 1. Feeding and conveying device; 11. Conveying trough; 12. Overlapping arc-shaped opening; 2. Conveying, detection and rejection device; 3. Material feeding and boxing device; 31. Positioning conveyor seat; 32. Linear motion module of material box; 33. Positioning placement seat; 34; 341; 342; loading lifting and moving mechanism; 35. Material box; 36. Gripper; 37. Mobile lifting robotic arm; Conveyor belt inspection and rejection device 4; Conveyor belt 41; First vision inspection equipment 42; First rejection and discharge device 43; slender bar feed trough 44; photoelectric switch 45; input guide embedded block 46; Input guide groove 461; 51; 511; 5111; 5111; 5112; 5112; 512; Fabric feeding gap 5121; fabric inlet 513; fabric wheel 52; independent fabric groove 521; 53; fabric drive motor; 54; fabric inlet nozzle; 541; 542; Rotary inspection and rejection device 6; indexing rotary table 61; independent bar feed trough 611; fixed plate 612; Material receiving section ring 6121; turntable drive motor unit 613; Rotary disc 614; bar feed trough section ring 6141; second vision inspection device 62; Second rejection and discharge device 63; through hole 631 for defective product unloading station; Roller roller 632; Defective product unloading device 633; Qualified unloading device 64; qualified unloading station through hole 641; fixed supplement block 642 643 movable opening and closing block; 644 opening and closing cylinder; 645 qualified material unloading device; 646 toothed structure; 71; second side wall plate 711; second inclined bottom plate 712; material inlet 713; Material discharge wheel housing 72; material discharge gap 721; material discharge wheel 73; independent material discharge chute 731; Vertical conveyor belt mechanism 74; conveyor belt 741; drive transmission motor assembly 75; feeding trough 76. Detailed Implementation

[0016] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0017] This embodiment discloses a visual inspection and packaging device for small rod materials, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 5 , Figure 6 As shown, the device includes a base and a feeding conveyor 1, a conveying detection and rejection device 2, and a discharging and boxing device 3 mounted on the base. The main difference between this invention and existing conveying and detection equipment is that the conveying detection and rejection device 2 includes a conveyor belt detection and rejection device 4, a fabric distribution device 5, and a turntable detection and rejection device 6, as well as the structural arrangement of these devices. The structural arrangement of the discharging and boxing device 3 is also different. The specific structural arrangement and positional connection relationship of each device will be described in detail below with reference to the accompanying drawings.

[0018] The input end of the conveyor belt detection and rejection device 4 is connected to the output end of the feeding conveyor device 1, and the input end of the fabric feeding device 5 corresponds to the output end of the conveyor belt detection and rejection device 4. The structure of the conveyor belt detection and rejection device 4 is as follows: Figure 1As shown, it includes a conveyor belt 41 mounted on a base and driven by a drive mechanism, at least one set of first vision inspection devices 42 fixedly mounted on the base and corresponding to the conveyor belt 41, and a first rejection and discharge device 43 correspondingly disposed on the side of the conveyor belt 41 between the first vision inspection devices 42 and the fabric feeding device 5. The conveyor belt 41 is equipped with elongated bar grooves 44 that align the axis of the bar stock with the conveying direction of the conveyor belt 41 and allow for orderly one-to-one transport through the field of view of the first visual inspection device 42 and the first rejection and discharge device 43. The width of the elongated bar groove 44 is designed to allow a single bar stock to easily embed, preventing multiple bars from embedding in the same section. The depth is designed to facilitate rolling out of the elongated bar groove 44 during rejection operations but prevent rolling out during non-rejection operations. To improve conveying efficiency, multiple elongated bar grooves can be arranged side-by-side, as shown in the figure (two are shown). The first visual inspection device 42 is configured in two sets, each corresponding to one elongated bar groove 44 for inspection. Since the transport is linear, dimensional inspections are primarily performed here. The first rejection and discharge device 43 in the figure uses an air-blowing rejection method, with a long, thin air nozzle positioned on one side of the elongated bar groove 44 to be rejected. After the bar stock is input from the feeding conveyor 1 (here, a photoelectric switch 45 can be set between the input guide embedded block 46 and the first vision inspection device 42 as shown in the figure below to detect materials, so as to troubleshoot problems in the conveying process and perform subsequent visual image processing), products that fail the inspection by the first vision inspection device 42 will be blown out when they reach the corresponding first rejection and discharge device 43 station, blowing the corresponding bar stock out from the corresponding slender bar stock groove 44 and falling into the defective material box where the airflow is downward. Products that pass the inspection by the first vision inspection device 42 continue to be conveyed forward.

[0019] The feeding and conveying device 1 in this embodiment is a vibratory feeder feeding and conveying device, which is a prior art product. It outputs materials in the required state through vibration. Its output end is a conveying trough 11 that is consistent with the elongated bar material trough 44 and is connected to the input end of the conveyor belt 41. Figure 2As shown, the lower part of the end of the conveyor trough 11 that connects to the input end of the conveyor belt 41 has an overlapping arc-shaped opening 12 for the arc portion of the input end of the conveyor belt 41 to be inserted accordingly, so that the output of the conveyor trough 11 can be connected to the slender bar material trough 44 of the horizontal section of the conveyor belt 41. This can achieve smooth conveying and connection, and prevent situations such as falling or getting stuck. An input guide embedding block 46 is provided above the docking point of the conveyor belt 41 corresponding to the conveyor trough 11 and the slender bar material trough 44 of the horizontal section of the conveyor belt 41. The lower surface of the input guide embedding block 46 is provided with an input guide guide groove 461 corresponding to the conveyor trough 11 and the slender bar material trough 44. This can reliably guide the bar material into the slender bar material trough 44, and it is not easy for conveying to be unsmooth or abnormal at the docking position.

[0020] The turntable detection and rejection device 6, as described above Figure 1 , Figure 4 As shown, the device includes an indexing turntable 61 with independent bar slots 611 evenly distributed around its upper surface, allowing the axial direction of the bar to be radially aligned and embedded into the slots. It also includes at least one set of second vision inspection equipment 62, second rejection and discharge device 63, and qualified discharge device 64, all located at a fixed workstation. When the indexing turntable 61 rotates, each independent bar slot 611 passes sequentially through the output end of the feeding device 5, the second vision inspection equipment 62, the second rejection and discharge device 63, and the qualified discharge device 64, and this rotation is repeated. In this embodiment, since it is used for detecting surface defects of bar stock, the structure of the indexing turntable 61 is different from that of the indexing turntable in other existing product inspections. In addition to carrying the bar stock one by one and rotating in a cycle, the indexing turntable here also needs to roll the bar stock so that different surface sections are upward for image capture and analysis. Therefore, this embodiment discloses that the indexing turntable 61 includes a fixed plate 612 fixedly mounted on the base, a turntable drive motor assembly 613 mounted on the base below the fixed plate 612, and a rotating plate 614 mounted on the base, corresponding to the center of the fixed plate 612 and corresponding to the upper surface of the fixed plate 612. The specific structure is as follows: the fixed disk 612 is provided with a receiving section ring 6121, and the rotating disk 614 includes a bar material groove section ring 6141 corresponding to the upper surface of the receiving section ring 6121. It should be noted that the bar material groove section ring 6141 corresponds to the upper surface of the receiving section ring 6121, and there is no fixed contact connection between the two, nor is there a gap between them that would allow the bar material to be embedded. Therefore, the two are arranged in a close but unconnected structure. The central section of the rotating disk 614 is connected to the turntable drive motor assembly 613 to drive the rotation. The independent bar material groove 611 is opened on the bar material groove section ring 6141 and runs vertically through the rotating disk 614. Furthermore, the two ends of the length of the independent bar material groove 611 should preferably correspond to the inner and outer rings of the receiving section ring 6121 to prevent the two ends of the bar material from leaving the dropping position.

[0021] With the above-described indexing turntable 61 structure, since its receiving section ring 6121 is non-rotatable while the rotating disk 614 is rotatable, the bar material embedded in the independent bar material groove 611 will move to the position on the fixed disk 612 as the rotating disk 614 rotates. At the same time, since the receiving section ring 6121 is non-rotatable, frictional resistance is formed. The frictional resistance is transferred to the bar material in the independent bar material groove 611, and the bar material will roll. That is, the bar material rolls and rotates to the position on the fixed disk 612. In this way, when passing through the second vision inspection device 62, all outer surfaces of the bar material can be continuously photographed, so that the device of the present invention can achieve the above-described surface inspection effect.

[0022] The qualified material unloading device 64 includes a qualified material unloading station through hole 641 on the receiving section ring 6121, which can be sequentially positioned directly below each independent material feeding groove 611; a fixed supplementary block 642 disposed within the qualified material unloading station through hole 641 with its upper surface flush with the upper surface of the receiving section ring 6121; a movable opening and closing block 643 disposed within the qualified material unloading station through hole 641 with its upper surface flush with the upper surface of the receiving section ring 6121; an opening and closing cylinder 644 mounted on the fixed plate 612 or the machine base and outputting a connection to the movable opening and closing block 643; and a qualified material unloading device 645 corresponding to the area below the qualified material unloading station through hole 641. A meshing toothed structure 646 is provided between the opposite sides of the fixed supplementary block 642 and the movable opening and closing block 643, as shown in the figure. Driven by the opening and closing cylinder 644, the movable opening and closing block 643 is movably closed and closed. When the bar stock moves towards the separation of the toothed structure 646 through hole 641, it does not completely disengage. This allows the bar stock to continue rolling through the section separated by the toothed structure 646 without falling or tilting. When the movable opening block 643 opens the qualified bar stock through hole 641, it moves towards the engagement of the toothed structure 646. At this time, the toothed structure 646 is tightly engaged, similar to the receiving section ring 6121, allowing the bar stock to roll through. After rolling through the toothed structure 646, the bar stock reaches the opened qualified bar stock through hole 641. Without the support at the bottom, the bar stock falls from the opened qualified bar stock through hole 641. The two ends of the independent bar stock groove 611 should correspond to the qualified bar stock through hole 641 to ensure smooth drop of the bar stock and to make the bar stock fall horizontally. After the above-mentioned structure is inspected by the second visual inspection device 62, the bar stock with surface defects is rotated by the rotating disk 614 and reaches the second rejection and discharge device 63 station, while the bar stock with no surface defects is dropped from the open qualified discharge station through hole 641 into the qualified discharge device 645 for subsequent discharge, conveying and boxing.

[0023] The structure of the second rejection and discharge device 63 in this embodiment is as follows: It includes a through hole 631 on the receiving section ring 6121 corresponding to a defective product discharge station directly below the independent material feeding trough 611; a rolling roller 632 mounted on the machine base, positioned directly above the defective product discharge station through hole 631 and close to the upper surface of the bar material trough section ring 6141; and a defective product discharge device 633 directly below the defective product discharge station through hole 631. As shown in the figure, after inspection by the second visual inspection device 62, bars with surface defects will not fall from the qualified discharge station through hole 641 as the rotating disk 614 rotates. Instead, they will continue to move to the discharge station of the second rejection and discharge device 63, thus achieving defective product discharge. When the material is above the through hole 631, it will fall due to gravity or be pressed down by the rolling roller 632 to ensure that the bar material in the independent feeding trough 611 will fall down. The structure is simple, effective and reliable. After being discharged, it enters the defective product unloading device 633. The defective product unloading device 633 can be a simple structure that slides directly to the defective product bin, or it can be a device like the qualified unloading device 645 mentioned above for subsequent unloading, conveying and boxing. The attached drawings of this embodiment show the same unloading, conveying and boxing device as the qualified unloading device 645, which will be described in detail below. In addition, the through hole 631 of the defective product unloading station can also be provided with a structure for opening and closing, just like the through hole 641 of the qualified unloading station. Please refer to the above structural application and the attached drawings. It will not be described again here.

[0024] like Figure 5As shown, both the qualified material unloading device 645 and the defective material unloading device 633 have structures including a material unloading hopper 71 corresponding to the through hole 641 of the qualified material unloading station or the through hole 631 of the defective material unloading station, a material unloading wheel housing 72 connected to the lower end of the material unloading hopper 71, a material unloading wheel 73 mounted in the material unloading wheel housing 72, a vertical conveyor belt mechanism 74 corresponding to the lower part of the material unloading wheel housing 72, a drive transmission motor unit 75 for driving the conveyor belt mechanism 74 and the material unloading wheel 73 to rotate, and a feeding trough 76 evenly spaced on the conveyor belt 741 of the conveyor belt mechanism 74. The material unloading hopper 71 includes a second side wall plate 711 that is enclosed and connected, and a second inclined bottom plate 712 that is inclined and connected to the lower edge of the second side wall plate 711. The material unloading wheel housing 72 has an inner diameter profile that can be nested with the material unloading wheel 73, and the axial side wall of the material unloading wheel housing 72 is connected to the lower part of the second inclined bottom plate 712 to form a communication. The material feeding inlet 713 is provided. The material feeding wheel 73 is coaxially mounted inside the material feeding wheel housing 72. The outer circumferential surface of the material feeding wheel 73 is evenly spaced with independent material feeding grooves 731 aligned with the axial direction of the material feeding wheel 73. The lower side wall of the material feeding wheel housing 72 has an axially extending material feeding gap 721 for the bar material to exit from the independent material feeding grooves 731. The material feeding gap 721 can sequentially correspond to two pairs of bars on the conveyor belt 741 of the lower conveyor belt mechanism 74. Between the feeding troughs 76, and with the two ends of the dropping gap 721 corresponding to the two ends of the length of the feeding trough 76, the bar stock can be inserted into the independent dropping trough 731 from the dropping inlet 713 and then fall into the feeding trough 76 from the dropping gap 721. The feeding trough 76 is a convex bar with an L-shaped cross-section. One end of its L-shape is connected to the conveyor belt 741 of the conveyor belt mechanism 74, and the other end of its L-shape faces the opposite direction of the conveyor belt 741 of the conveyor belt mechanism 74. If the above structure is qualified after being detected by the second visual inspection device 62 during the use of the qualified dropping device 645, the movable opening and closing block 643 opens the qualified dropping station through hole 641 to allow the bar stock to fall horizontally into the dropping hopper 71. If it is unqualified after being detected by the second visual inspection device 62, the movable opening and closing block 643 closes the qualified dropping station through hole 641, and the bar stock moves to the station of the second rejection and discharge device 63 by the rotation of the rotating disk.

[0025] like Figure 3 As shown, in this embodiment, the input end of the fabric feeding device 5 corresponds to the output end of the conveyor belt detection and rejection device 4, and its output end also corresponds to the turntable detection and rejection device 6. Its structure allows for the feeding of fabric bars one by one into the turntable detection and rejection device 6 (specifically, into the independent bar slots 611 on the turntable detection and rejection device 6 described below) for fabric feeding. For example... Figure 1 and Figure 3As shown, the fabric feeding device 5 is a structure that allows the fabric bars to be inserted one by one into the corresponding independent fabric bar slots 611 for feeding. Its structure includes a fabric feeding hopper 51, a fabric feeding wheel 52, a fabric feeding drive motor 53, and a fabric feeding nozzle 54. The fabric feeding hopper 51 includes a hopper body 511 and a fabric feeding wheel housing 512 connected to the lower end of the hopper body 511. The hopper body 511 includes a side wall plate 5111 that is enclosed and connected, and an inclined bottom plate 5112 that is inclined and connected to the lower edge of the side wall plate 5111. The fabric feeding wheel housing 512 is designed to be compatible with the fabric feeding wheel 5111. The inner diameter profile of the two nested phases (ensuring one-to-one feeding of the fabric rollers 52) and the connection between the axial sidewall of the fabric roller housing 512 and the lower part of the inclined base plate 5112 form a communicating fabric inlet 513. The fabric rollers 52 are coaxially mounted inside the fabric roller housing 512, and one end of them is connected to the output end of the fabric drive motor 53 and driven to rotate. The outer circumferential surface of the fabric rollers 52 is evenly spaced with independent fabric grooves 521 on the wheel, which are aligned with the axial direction of the fabric rollers 52. The lower sidewall of the fabric roller housing 512 is axially opened. A through-hole slit 5121 allows only one bar of fabric to pass through at a time. The slit 5121 is positioned directly above each independent fabric groove 611, with both ends of its length corresponding to the ends of the independent fabric groove 611. The bar of fabric can be inserted into the independent fabric groove 611 from the fabric inlet and then fall through the slit 5121 into the independent fabric groove 611. The fabric inlet 54 includes an inlet end 541 and an outlet end 542. The outlet end 542 corresponds to the fabric... The material feeding device 51 is positioned above the hopper and angled so that the length of the bar stock tends to be parallel to the axis of the feeding wheel 52 after falling in. The feed inlet 541 to the feed outlet 542 has a feeding sliding structure that facilitates the feeding of material into the feeding hopper 51. As shown in the figure, the bar stock will not fall vertically after being discharged from the feed outlet 542, ensuring that the material falls in an orderly and neat manner, which can ensure the subsequent feeding and conveying. The feed inlet 541 to the feed outlet 542 has a feeding sliding structure that facilitates the feeding of material into the feeding hopper 51. With the above-described structure of the feeding device 5, the bar stock from the feeding conveyor 1 can be fed one by one into the independent bar stock groove 611 on the rotating disk 614 in an orderly manner.

[0026] Finally, the feeding and boxing device 3 in this embodiment discloses a structure that can achieve a compact arrangement and reduce collision friction for orderly boxing. It also needs to have a structure to prevent the bar stock from flipping or turning over during feeding and a structure that can automatically adjust its orientation to achieve orderly boxing. The structure disclosed in this embodiment is as follows: Figure 5 and Figure 6As shown, the feeding and boxing device 3 is located in the base below the turntable detection and rejection device, specifically below the qualified feeding device 64 and / or the second rejection and discharge device 63. It includes a feeding box linear motion module 32 with multiple positioning conveyor seats 31, a feeding lifting and moving mechanism 34 with a positioning placement seat 33 corresponding to the feeding station (below the aforementioned vertical conveyor belt mechanism 74), a feeding box 35 placed on the positioning conveyor seat 31 or the positioning placement seat 33, and a moving lifting mechanical arm 37 with a gripper 36 for moving the feeding box between the positioning conveyor seat 31 and the positioning placement seat 33. The feeding lifting and moving mechanism 34 also includes a boxing transverse linear module 341 fixedly installed on the base, a lifting mechanism 342 installed on the boxing transverse linear module 341 for driving transverse movement, and the positioning placement seat 33 installed on the lifting mechanism 342 for lifting and lowering. The moving lifting mechanical arm 37 and the feeding lifting and moving mechanism 34 are also equipped with a positioning sensing structure (not shown in the figure). With the above structure, the initial use of the space-time loading boxes 35 can be achieved by placing them one by one on the positioning conveyor seat 31 and conveying them forward by the loading box linear motion module 32. When the first loading box arrives at the workstation, the moving lifting robotic arm 37 moves and lifts to adjust the gripper 36 and clamp the first loading box 35. Then, the moving lifting robotic arm 37 moves and lifts the gripper to the positioning placement seat 33 and fixes it in place. The moving lifting robotic arm 37 then returns to its original position and, driven by the loading lifting moving mechanism 34, rises first, causing the lower end of the vertical conveyor belt mechanism 74 to be embedded. The material is placed in the loading box 35 of the positioning and placement seat 33 near the bottom of the box. As the vertical conveyor belt mechanism 74 conveys the bar material to fall to the bottom of the box, the loading lateral movement linear module 341 drives the lateral movement, so that the box can be loaded layer by layer from one side to the other. As the number of loading layers increases, the lifting mechanism 342 gradually descends, and the loading of the loading box 35 of the positioning and placement seat 33 is completed. Then, the moving lifting robotic arm 37 reverses and lowers the loading box 35 of the positioning and placement seat 33 back to its original position, and then resets, and enters the loading of the next loading box 35.

[0027] The working principle of this fine rod material inspection and packaging device, as described above, has already been explained in the structural description and will not be repeated here. Its beneficial effects have also been described in the structural description and will not be repeated here either.

[0028] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A visual inspection and boxing device for small bar stock, comprising a base and a feeding conveying device, a conveying inspection and rejection device, and a discharging and boxing device mounted on the base, characterized in that: The conveyor detection and rejection device includes a conveyor belt detection and rejection device, a material feeding device, and a turntable detection and rejection device. The input end of the conveyor belt detection and rejection device is connected to the output end of the feeding conveyor device. The input end of the material feeding device corresponds to the output end of the conveyor belt detection and rejection device, and its output end corresponds to the turntable detection and rejection device. The conveyor belt detection and rejection device includes a conveyor belt, at least one set of first visual inspection devices fixedly mounted above the conveyor belt, and a first rejection and discharge device correspondingly set on the side of the conveyor belt between the first visual inspection devices and the fabric device. The conveyor belt is provided with a slender bar groove that makes the bar axis direction consistent with the conveyor belt conveying direction and can orderly convey the bar one by one through the shooting range of the first visual inspection devices and the first rejection and discharge device. The turntable inspection and rejection device includes an indexing turntable with independent bar slots evenly distributed around its upper surface, allowing the axial direction of the bar to be radially aligned and embedded into the slots. It also includes at least one set of second vision inspection equipment, a second rejection and discharge device, and a qualified discharge device, all set at a fixed workstation. When the indexing turntable rotates, each independent bar slot passes sequentially through the output end of the feeding device, the second vision inspection equipment, the second rejection and discharge device, and the qualified discharge device. The qualified discharge device is located below the indexing turntable and has a structure that enables the bar to be horizontally conveyed and discharged one by one. The fabric feeding device is a structure that can insert the bar stock into the corresponding independent bar stock slots one by one for fabric feeding; the feeding and boxing device is set in the base below the turntable detection and rejection device, and its structure is a structure that can automatically adjust the orientation to achieve orderly boxing. The indexing turntable includes a fixed plate fixedly mounted on a machine base, a turntable drive motor assembly mounted on a machine base below the fixed plate, and a rotating plate mounted on the machine base corresponding to the center of the fixed plate and corresponding to the upper surface of the fixed plate; the fixed plate is provided with a receiving section ring, and the rotating plate includes a bar material groove section ring corresponding to the upper surface of the receiving section ring, and the independent bar material groove is opened through the bar material groove section ring; The qualified material unloading device includes a qualified material unloading station through hole that can be sequentially located directly below each independent material feeding groove on the receiving section ring; a fixed supplementary block that is set in the qualified material unloading station through hole and whose upper surface is flush with the upper surface of the receiving section ring; a movable opening and closing block that is set in the qualified material unloading station through hole and whose upper surface is flush with the upper surface of the receiving section ring; an opening and closing cylinder that is installed on a fixed plate or machine base and outputs a connection to the movable opening and closing block; and a qualified material unloading device corresponding to the bottom of the qualified material unloading station through hole. The fixed supplementary block and the movable opening and closing block are provided with a toothed structure that can mesh with each other. When the movable opening and closing block moves to close the qualified material unloading station through hole, it moves in the direction of separating the toothed structure but does not completely disengage. The structure of the qualified material unloading device and / or the defective material unloading device includes a material unloading hopper corresponding to the through hole of the qualified material unloading station or the through hole of the defective material unloading station, a material unloading wheel housing connected to the lower end of the material unloading hopper, a material unloading wheel mounted in the material unloading wheel housing, a vertical conveyor belt mechanism corresponding to the lower part of the material unloading wheel housing, a drive transmission motor unit for driving the conveyor belt mechanism and the material unloading wheel to rotate, and feeding troughs evenly spaced on the conveyor belt of the conveyor belt mechanism.

2. The visual inspection and boxing equipment for fine rod materials as described in claim 1, characterized in that: The fabric feeding device includes a fabric hopper, a fabric wheel, a fabric drive motor, and a fabric inlet. The fabric hopper includes a hopper body and a fabric wheel housing connected to the lower end of the hopper body. The hopper body includes enclosing sidewalls and an inclined bottom plate connected to the lower edge of the sidewalls. The fabric wheel housing has an inner diameter profile that can be nested with the fabric wheel, and the axial sidewall of the fabric wheel housing is connected to the lower part of the inclined bottom plate to form a communicating fabric inlet. The fabric wheel is coaxially mounted inside the fabric wheel housing, and one end of it is connected to the output end of the fabric drive motor and driven to rotate. The outer circumference of the fabric wheel is evenly spaced with independent fabric grooves aligned with the axis of the fabric wheel. The lower side wall of the fabric wheel housing has an axially extending fabric drop slit that allows only one bar of fabric to pass through at a time. The fabric drop slit is located directly above each independent fabric groove, and the two ends of the length of the fabric drop slit correspond to the two ends of the length of the independent fabric groove. The bar of fabric can be inserted into the independent fabric groove on the wheel from the fabric inlet and then fall into the independent fabric groove from the fabric drop slit. The fabric inlet includes an inlet end and an outlet end. The outlet end corresponds to the top of the fabric hopper and is angularly arranged so that the length direction of the bar of fabric tends to be parallel to the axial direction of the fabric wheel after it falls in. The inlet end to the outlet end has an inlet sliding structure that facilitates the feeding of the fabric into the fabric hopper.

3. A visual inspection and boxing device for fine rod materials as described in claim 1 or 2, characterized in that: The second rejection and discharge device includes a through hole on the receiving section ring that corresponds to the defective product discharge station directly below the independent material feeding trough, a rolling roller mounted on the machine base that corresponds to the through hole of the defective product discharge station and is close to the upper surface of the bar material feeding trough section ring, and a defective product discharge device that corresponds to the through hole of the defective product discharge station directly below the through hole of the defective product discharge station.

4. A visual inspection and boxing device for fine rod materials as described in claim 1 or 2, characterized in that: The feeding hopper includes a second sidewall panel that is enclosed and connected, and a second inclined bottom plate that is inclined and connected to the lower edge of the second sidewall panel. The feeding wheel housing has an inner diameter profile that can be nested with the feeding wheel, and the axial sidewall of the feeding wheel housing is connected to the lower part of the second inclined bottom plate to form a communicating feeding inlet. The feeding wheel is coaxially mounted in the feeding wheel housing. The outer circumference of the feeding wheel is evenly spaced with independent feeding grooves that are aligned with the axis of the feeding wheel. The lower sidewall of the feeding wheel housing has an axially penetrating feeding gap for the bar material to be ejected from the independent feeding groove. The feeding gap can sequentially correspond to the feeding grooves between two pairs of feeding grooves on the conveyor belt of the lower conveyor belt mechanism, and the feeding... The two ends of the material gap correspond to the two ends of the feeding trough. The bar stock can be inserted into the independent feeding trough from the material inlet and then fall into the feeding trough from the material gap. The feeding trough is a convex bar with an L-shaped cross-section. One end of the L-shape is connected to the conveyor belt of the conveyor belt mechanism, and the other end of the L-shape faces the opposite direction of the conveyor belt of the conveyor belt mechanism. When the bar stock is qualified after passing the second vision inspection device, the movable opening and closing block opens the qualified feeding station through hole to allow the bar stock to fall horizontally into the feeding hopper. When the bar stock is unqualified after passing the second vision inspection device, the movable opening and closing block closes the qualified feeding station through hole, and the bar stock moves to the station of the second rejection and discharge device by the rotation of the rotating disk.

5. The visual inspection and boxing equipment for small rod materials as described in claim 4, characterized in that: The feeding and boxing device is located below the qualified feeding device and / or the second rejection and discharge device. It includes a linear motion module for the box with multiple positioning conveyor seats, a feeding lifting and moving mechanism with a positioning placement seat corresponding to the feeding station, a box placed on the positioning conveyor seat or the positioning placement seat, and a mobile lifting robotic arm with a gripper for moving the box between the positioning conveyor seat and the positioning placement seat. The feeding lifting and moving mechanism also includes a boxing transverse linear module fixedly installed on the machine base, a lifting mechanism installed on the boxing transverse linear module that drives transverse movement, the positioning placement seat installed on the lifting mechanism and driven to lift, and the mobile lifting robotic arm and the feeding lifting and moving mechanism are also equipped with a positioning sensing structure.

6. A visual inspection and boxing device for fine rod materials as described in claim 1 or 2, characterized in that: The feeding and conveying device is a vibratory feeder feeding and conveying device. Its output end is a conveying trough that is consistent with the slender bar material trough and connects to the input end of the conveyor belt. The lower part of the end of the conveying trough that connects to the input end of the conveyor belt has an overlapping arc-shaped opening, which allows the input end of the conveyor belt to be inserted accordingly so that the output of the conveying trough can be connected to the slender bar material trough of the horizontal section of the conveyor belt. An input guide embedding block is provided above the docking point of the conveying trough and the slender bar material trough of the horizontal section of the conveyor belt. The lower surface of the input guide embedding block is provided with an input guide groove corresponding to the conveying trough and the slender bar material trough. A photoelectric switch is provided between the input guide embedding block and the first vision inspection device.

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