Magnetic suspension BFS lamp inspection machine for dynamic tracking detection of foreign matters

Abstract

The utility model discloses a magnetic suspension BFS lamp inspection machine for dynamically tracking and detecting foreign matters, relates to the technical field of lamp inspection machines, and aims to solve the problem that the conventional lamp inspection machine cannot dynamically track and detect the suspended foreign matters in a bottle. The conveying mechanism is arranged at the top of the lifting mechanism and extends in the length direction of the rack, the magnetic suspension mechanism is arranged at the top of the rack and located above the conveying mechanism, a sensor fixed to the top of the rack is arranged at one end of the magnetic suspension mechanism so as to detect the position of a product, and the magnetic suspension mechanism is used for feeding, shaking and overturning, capturing pictures and discharging. The lifting mechanism, the conveying mechanism, the magnetic suspension mechanism and the sensor are all connected with the control device.

Description

Technical Field

[0001] The utility model relates to the technical field of light inspection machines, and more specifically to a magnetic suspension BFS light inspection machine used for dynamic tracking and detection of foreign objects. Background Art

[0002] BFS (Blow Fill Seal in English, Blowing-Filling-Seal in Chinese) is a three-in-one technology of blowing, filling and sealing. It is a liquid filling process for aseptic or terminally sterilized pharmaceutical production: plastic pellets are heated under vacuum conditions, and the pellets are formed into tubular preforms under high temperature conditions. The preforms are then inflated and filled with liquid medicine and sealed. The products are usually multiple bottles per plate.

[0003] With the expansion of the production scale of the BFS industry, the increase in the production speed of filling machines, and the increasing attention paid to the safety issues in the pharmaceutical industry by enterprises and relevant regulatory departments, manual light inspection can no longer meet the huge number of inspections and higher requirements of various pharmaceutical companies. In order to solve the problems of low efficiency, unstable test results, high labor intensity and impaired workers' eyesight of manual light inspection of plastic ampoule products, light inspection machines that automatically detect the appearance, filling volume and foreign matter in plastic ampoules have begun to appear on the market. However, the conveying method used by the BFS automatic light inspection machines in the industry is linear conveying, which cannot realize the flipping detection of the bottle, so it can only detect sinking foreign matter, and cannot dynamically track and detect suspended foreign matter. In order to solve the problem of wall droplets affecting filling volume detection, a vibration mechanism needs to be added inside the light inspection machine, and the structure is complicated.

[0004] Therefore, how to solve the problem that the existing light inspection machine cannot dynamically track and detect the suspended foreign matter in the bottle is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a magnetic levitation BFS light inspection machine for dynamic tracking and detection of foreign objects, which can simulate the action of manually shaking the bottle to make the liquid in the bottle shake evenly, and after turning the bottle upside down, dynamically track and detect the foreign objects suspended in the bottle, while solving the influence of wall droplets on the filling quantity detection and improving the detection accuracy.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects, comprising:

[0008] frame;

[0009] A lifting mechanism is arranged on the top of the frame in a manner that it can be raised and lowered;

[0010] The conveying mechanism is arranged on the top of the lifting mechanism, and the conveying mechanism extends along the length direction of the frame;

[0011] The magnetic suspension mechanism is arranged on the top of the frame and above the conveying mechanism. A sensor fixed to the top of the frame is arranged at one end of the magnetic suspension mechanism to detect the position of the product. The magnetic suspension mechanism is used for loading, shaking and flipping, capturing and unloading.

[0012] The lifting mechanism, the conveying mechanism, the magnetic suspension mechanism and the sensor are all connected with the control device.

[0013] Preferably, the magnetic suspension mechanism comprises:

[0014] The magnetic levitation track is a closed circular track, and the magnetic levitation track is located above the conveying mechanism;

[0015] A plurality of clamping devices are provided, and the plurality of clamping devices are movably arranged along the magnetic suspension track;

[0016] Foreign matter dynamic tracking and detection devices are installed on both sides of the top of the magnetic levitation track;

[0017] The bottle body detection device is arranged on both sides of the top of the magnetic suspension track and is located at the end of the foreign body dynamic tracking detection device;

[0018] The clamping device, the foreign matter dynamic tracking detection device and the bottle body detection device are all connected with the control device.

[0019] Preferably, the magnetic levitation track comprises:

[0020] A fixing plate is vertically arranged on the top of the frame through a support, and the fixing plate is arranged along the length direction of the frame;

[0021] The curved section is a semi-arc structure, and the curved section is arranged at both ends of the fixed plate;

[0022] The straight segments are arranged at the top and the bottom of the fixed plate, and the straight segments are correspondingly connected with the curved segments to form a closed circular track.

[0023] Preferably, the clamping device comprises:

[0024] The magnetic suspension mover module is arranged to move along the magnetic suspension track, and the magnetic suspension mover module is connected to the control device;

[0025] The mechanical claw is connected to the magnetic suspension mover module. The mechanical claw is opened and closed by a cam mechanism during movement. The cam mechanism is arranged on the top of the frame. The mechanical claw is a normally closed structure.

[0026] Preferably, the mechanical claw comprises:

[0027] A clamp fixing plate connected to the magnetic suspension mover module;

[0028] There are two sets of push rods, which are arranged to move along the length direction of the clamping jaw fixing plate through corresponding linear sliding guide rails;

[0029] There are two groups of clamping plates, which are connected to corresponding push rods. Driven by the push rods, the two groups of clamping plates move relative to or oppositely along the length direction of the clamping jaw fixing plate;

[0030] The polyurethane blocks are provided in two groups, and the two groups of polyurethane blocks are arranged on the inner sides of the corresponding splints.

[0031] Preferably, a compression spring is provided at one end of the linear sliding guide rail, and the compression spring is movably arranged along the spring guide shaft. A spring stop is provided at one end of the compression spring, and the spring stop is connected to the end of the clamp fixing plate. A clamp limit adjustment nut is provided at the end of the spring stop.

[0032] Preferably, a roller mounting plate is provided on the outer side of the end of the push rod, a roller is provided on the bottom of the roller mounting plate, and the roller is arranged to move along the cam mechanism.

[0033] Preferably, the conveying mechanism comprises:

[0034] The input belt is a track-changing structure, which is arranged at one end of the frame and extends to one end of the magnetic suspension track;

[0035] Feeding track changing contour guardrail, installed on both sides of the input belt;

[0036] The bottle head detection device is installed on both sides of the feeding track changing profiling guardrail through a bracket, and the bottle head detection device is connected to the control device;

[0037] The output belt is a track-changing structure, which is arranged at the other end of the frame, and the output belt extends to the other end of the magnetic suspension track;

[0038] The unloading track changing contour guardrail is installed on both sides of the output belt.

[0039] Preferably, the input belt is provided with a clamping and over-bottle-separating device and an ion wind rod, both of which are arranged at one end away from the magnetic suspension track, and both of which are connected to the control device.

[0040] Preferably, a material unloading device is provided at one end of the magnetic suspension track close to the output belt, and the material unloading device comprises:

[0041] A feeding cylinder, which is a normally retracted cylinder, has an output end connected to a cam mechanism, and is connected to a control device;

[0042] The defective product classification and rejection device is arranged at the bottom of the magnetic suspension track. The defective product classification and rejection device comprises three normally extended cylinders, which are connected to the control device and have slideways corresponding to the normally extended cylinders.

[0043] The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects provided by the utility model comprises a frame, a lifting mechanism, a conveying mechanism, a magnetic suspension mechanism and a control device. Specifically, the lifting mechanism, the conveying mechanism, the magnetic suspension mechanism and the sensor are all connected to the control device. The lifting mechanism is arranged on the top of the frame in a liftable manner. The conveying mechanism is arranged on the top of the lifting mechanism and extends along the length direction of the frame. The lifting mechanism is controlled by the control device to move up and down to drive the conveying mechanism to move up and down synchronously, thereby adapting to products of different specifications.

[0044] The magnetic levitation mechanism is arranged on the top of the frame and above the conveying mechanism. The control device controls the conveying mechanism to smoothly convey the product to the bottom of the magnetic levitation mechanism. One end of the magnetic levitation mechanism is provided with a sensor fixed to the top of the frame to detect the position of the product. When the sensor detects the position of the product, it sends a signal to the control device. The control device controls the magnetic levitation mechanism to grab the product and shake and flip the product to shake the liquid in the product evenly, then captures the picture and sends the picture information to the control device, dynamically tracks and detects the suspended foreign matter in the bottle, determines whether the product is a qualified product through the control device, and finally classifies and unloads it.

[0045] The magnetic levitation BFS light inspection machine for dynamic tracking and detection of foreign objects set up in the above manner, by setting up a magnetic levitation mechanism, simulates the action of manually shaking the product to shake the liquid in the product evenly, and dynamically tracks and detects suspended foreign objects in the bottle, while solving the influence of wall droplets on filling quantity detection and improving detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0047] Figure 1 This is a schematic diagram of the structure of the magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects provided by the utility model;

[0048] Figure 2 for Figure 1 A structural diagram from another perspective;

[0049] Figure 3 This is a schematic structural diagram of the clamping device provided by the utility model.

[0050] Figure 1-Figure 3 , the reference numerals include:

[0051] 1- rack;

[0052] 2-Lifting mechanism;

[0053] 3- conveying mechanism, 31- input belt, 32- feeding track changing profiling guardrail, 33- bottle head detection device, 34- output belt, 35- unloading track changing profiling guardrail;

[0054] 4-magnetic suspension mechanism, 41-magnetic suspension track, 411-fixed plate, 412-curved section, 413-straight section, 42-clamping device, 421-magnetic suspension mover module, 422-claw fixed plate, 423-push rod, 424-linear sliding guide rail, 425-clamping plate, 426-polyurethane block, 427-compression spring, 428-spring stopper, 429-claw limit adjustment nut, 430-roller mounting plate, 431-roller, 43-foreign matter dynamic tracking detection device, 44-bottle body detection device;

[0055] 5-Clamping and over-dispensing bottle device;

[0056] 6-Ion wind wand;

[0057] 7-feeding device;

[0058] 8-Defective product classification and rejection device;

[0059] 9- Slide. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] It should be noted that the directional words such as "up, down, left, right" etc. mentioned below are defined based on the drawings in the specification.

[0062] The core of the utility model is to provide a magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects. The existing linear conveying cannot realize the flipping detection of the bottle, so it can only detect the foreign objects that sink to the bottom, and cannot dynamically track and detect the suspended foreign objects. The utility model can simulate the action of manually shaking the bottle to shake the liquid in the bottle evenly, and after turning the bottle upside down, dynamically track and detect the suspended foreign objects in the bottle, and use the centrifugal force through rotation to shake out the residual liquid in the bottle head, thereby improving the accuracy of filling quantity detection.

[0063] Please refer to Figure 1A magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects includes a frame 1, a lifting mechanism 2, a conveying mechanism 3, a magnetic suspension mechanism 4 and a control device.

[0064] Specifically, the lifting mechanism 2, the conveying mechanism 3, the magnetic levitation mechanism 4 and the sensor are all connected to the control device. The lifting mechanism 2 is arranged on the top of the frame 1 in a liftable manner. The conveying mechanism 3 is arranged on the top of the lifting mechanism 2 and extends along the length direction of the frame 1. The lifting mechanism 2 is controlled by the control device to move up and down to drive the conveying mechanism 3 to move up and down synchronously, so as to adapt to products of different specifications.

[0065] The magnetic levitation mechanism 4 is arranged on the top of the frame 1 and above the conveying mechanism 3. The control device controls the conveying mechanism 3 to smoothly convey the product to the bottom of the magnetic levitation mechanism 4. One end of the magnetic levitation mechanism 4 is provided with a sensor fixed to the top of the frame 1 to detect the position of the product. When the sensor detects the position of the product, it sends a signal to the control device. The control device controls the magnetic levitation mechanism 4 to grab the product and shake and flip the product to shake the liquid in the product evenly, then captures the picture and sends the picture information to the control device, dynamically tracks and detects the suspended foreign matter in the bottle, determines whether the product is a qualified product through the control device, and finally classifies and discharges the product.

[0066] The magnetic levitation BFS light inspection machine for dynamic tracking and detection of foreign objects set up in the above manner, by setting up a magnetic levitation mechanism 4, simulates the action of manually shaking the product to make the liquid in the product shake evenly, and dynamically tracks and detects the foreign objects suspended in the bottle, while solving the influence of wall droplets on the filling quantity detection and improving the detection accuracy.

[0067] In the above embodiment, the magnetic levitation mechanism 4 includes a magnetic levitation track 41, a clamping device 42, a foreign object dynamic tracking detection device 43 and a bottle body detection device 44. The magnetic levitation track 41 is a closed circular track and is located above the conveying mechanism 3. A plurality of clamping devices 42 are provided, and the plurality of clamping devices 42 are movably arranged along the magnetic levitation track 41. The foreign object dynamic tracking detection device 43 is arranged on both sides of the top of the magnetic levitation track 41. The bottle body detection device 44 is arranged on both sides of the top of the magnetic levitation track 41 and is located at the end of the foreign object dynamic tracking detection device 43. The clamping device 42, the foreign object dynamic tracking detection device 43 and the bottle body detection device 44 are all connected to the control device.

[0068] It should be noted that the control device controls the clamping device 42 to clamp the product and rotate along the magnetic suspension track 41, so as to shake and flip the product and oscillate the liquid in the product. The clamping device 42 takes the product through the foreign matter dynamic tracking detection device 43 and the bottle detection device 44, captures the foreign matter, filling amount and appearance of the product and feeds it back to the control device, and then rotates along the magnetic suspension track 41 to flip the product. The control device analyzes the received signals and pictures and sends a signal for the next action.

[0069] In the above case, the magnetic levitation track 41 includes a fixed plate 411, a curved section 412 and a straight section 413. The fixed plate 411 is vertically arranged on the top of the frame 1 through a support and is arranged along the length direction of the frame 1. The curved section 412 is a semi-arc structure and is arranged at both ends of the fixed plate 411. The straight section 413 is arranged at the top and bottom of the fixed plate 411. The straight section 413 is correspondingly connected to the curved section 412 to form a closed circular track.

[0070] It can be understood that two curved sections 412 and two straight sections 413 are installed on the fixed plate 411. The left curved section is used to achieve shaking and flipping of the product and oscillate the liquid in the product. The upper straight section 413 is used to capture foreign matter, filling quantity and appearance of the product. The right curved section is used to flip the product. The lower straight section 413 is used for loading, unloading and classification and removal of products.

[0071] Please refer to Figure 3 The clamping device 42 includes a magnetic suspension mover module 421 and a mechanical claw. The magnetic suspension mover module 421 is arranged to move along the magnetic suspension track 41 and is connected to the control device. The mechanical claw is connected to the magnetic suspension mover module 421. The mechanical claw is opened and closed by a cam mechanism during movement. The cam mechanism is arranged at the top of the frame 1, and the mechanical claw is a normally closed structure.

[0072] It should be noted that the clamping device 42 is composed of a magnetic suspension mover module 421 and a normally closed mechanical claw. The control device controls the magnetic suspension mover module 421 to move forward along the magnetic suspension track 41, and the opening and closing of the mechanical claw is realized through a cam mechanism, and the cam mechanism is fixed on the frame 1.

[0073] In the above embodiment, the mechanical claw includes a clamping claw fixing plate 422, a push rod 423, a linear sliding guide rail 424, a splint 425 and a polyurethane block 426. The clamping claw fixing plate 422 is connected to the magnetic suspension mover module 421. There are two groups of push rods 423. The two groups of push rods 423 are moved along the length direction of the clamping claw fixing plate 422 through the corresponding linear sliding guide rails 424. There are two groups of splints 425. The two groups of splints 425 are connected to the corresponding push rods 423. The two groups of splints 425 move relative to or oppositely along the length direction of the clamping claw fixing plate 422 under the drive of the push rods 423. There are two groups of polyurethane blocks 426. The two groups of polyurethane blocks 426 are arranged on the inner side of the corresponding splints 425.

[0074] It can be understood that when the mechanical claw reaches the highest point along the contour line of the cam mechanism, the clamp 425 fixed on the push rod 423 moves outward, and the mechanical claw is in an open state; when the mechanical claw continues to reach the lowest point along the contour line of the cam mechanism, the clamp 425 fixed on the push rod 423 moves inward, and the mechanical claw is in a closed state.

[0075] Among them, the clamp fixing plate 422 is designed to be eccentric, so that the mechanical claw and the magnetic suspension mover module 421 are not concentric during the rotation process, thereby avoiding interference between the product and the conveying mechanism 3 during the upward rotation process.

[0076] On the basis of the above embodiment, a compression spring 427 is provided at one end of the linear sliding guide rail 424, and the compression spring 427 is movably arranged along the spring guide shaft. A spring stopper 428 is provided at one end of the compression spring 427, and the spring stopper 428 is connected to the end of the clamp fixing plate 422, and a clamp limit adjustment nut 429 is provided at the end of the spring stopper 428.

[0077] Furthermore, a roller mounting plate 430 is provided on the outer side of the end of the push rod 423 , and a roller 431 is provided on the bottom of the roller mounting plate 430 , and the roller 431 is arranged to move along the cam mechanism.

[0078] It can be understood that when the mechanical claw moves forward along the cam mechanism, the roller 431 will reach the highest point along the contour of the cam mechanism, and the clamping plate 425 fixed on the push rod 423 will move outward, and the mechanical claw will be in an open state; when the mechanical claw continues to move forward along the cam mechanism, the roller 431 will reach the lowest point along the contour of the cam mechanism, and under the action of the compression spring 427, the clamping plate 425 fixed on the push rod 423 will move inward, and the mechanical claw will be in a closed state, and by adjusting the clamping jaw limit adjustment nut 429, the distance between the clamping plates 425 on both sides of the clamping jaw in the closed state can be adjusted, so as to be suitable for bottles of different thicknesses.

[0079] Among them, each magnetic suspension mover module 421 in the magnetic suspension mechanism 4 can be independently controlled in motion, so the loading, shaking and flipping, capturing and taking pictures, unloading and classification and rejection stations do not affect each other during operation.

[0080] The operation steps of the magnetic suspension mechanism 4 are as follows: first, the first magnetic suspension mover module 421 carries the mechanical claw to the highest point of the cam mechanism, and the clamps 425 on both sides of the mechanical claw are opened at the same time to facilitate the entry of the product. When the sensor detects that the product has reached the specified position of the clamping device 42, the first magnetic suspension mover module 421 moves forward and closes the clamp to complete the product grabbing action; after successfully grabbing the product, first rotate 90 degrees along the curved section 412 of the magnetic suspension mechanism 4 to make the tail of the product bottle in a horizontal direction, and then shake it 2-3 times within a range of 15 degrees up and down to shake the liquid in the bottle evenly, and then rotate 90 degrees to enter the straight section of the magnetic suspension mechanism 4 413, and at the same time, the second magnetic suspension mover module 421 starts to repeat the action of the first magnetic suspension mover module 421. The first magnetic suspension mover module 421 first briefly stays at the foreign object dynamic tracking detection device 43, and the camera captures several photos to form a trajectory according to the sedimentation path of the foreign object in the bottle. Then the first magnetic suspension mover module 421 passes through the bottle body detection device 44 at a uniform speed in sequence, including a station for detecting the front and back sides of the bottle body, and captures photos of the front and back sides of the bottle body respectively. Then the first magnetic suspension mover module 421 rotates 180 degrees along the curved section 412 of the magnetic suspension mechanism 4 and enters the straight section 413 of the magnetic suspension mechanism 4.

[0081] Please refer to Figure 2 The conveying mechanism 3 includes an input belt 31, a loading track changing profiling guardrail 32, a bottle head detection device 33, an output belt 34 and a unloading track changing profiling guardrail 35. The input belt 31 and the output belt 34 are track changing structures. The input belt 31 is arranged at one end of the frame 1 and extends to one end of the magnetic suspension track 41. The loading track changing profiling guardrail 32 is arranged on both sides of the input belt 31. The bottle head detection device 33 is installed on both sides of the loading track changing profiling guardrail 32 through a bracket and is connected to the control device. The output belt 34 is arranged at the other end of the frame 1 and extends to the other end of the magnetic suspension track 41. The unloading track changing profiling guardrail 35 is arranged on both sides of the output belt 34.

[0082] It should be noted that a bottle head detection device 33 is arranged during the straight-line conveying process, and the camera and light source are respectively installed on both sides of the loading track-changing profiling guardrail 32 through a bracket, so that the front and back sides of the bottle head can be captured. The loading track-changing profiling guardrail 32 is a stepped guardrail designed according to the different widths of the middle and lower parts of the bottle body, which can prevent the bottle from tilting during the conveying process, which not only improves the smoothness of the conveying process, but also ensures the imaging effect of the front and back side detection of the bottle head; the unloading track-changing profiling guardrail 35 is a stepped guardrail designed according to the different widths of the middle and lower parts of the bottle body, which prevents the bottle from tilting and causing conveying jams. In addition, the front section of the product output belt 34 is equipped with an unloading anti-falling mechanism, which intersects with the unloading track-changing profiling guardrail 35, which can prevent the bottle from falling over due to a sudden change in speed direction.

[0083] Among them, the input belt 31 and the output belt 34 are track-changing structures. Track-changing means that the straight conveying track and the flexible conveying track are not in the same plane. The bottles do not affect each other during straight conveying and curved conveying, which can greatly reduce the distance between the two bottles and improve the detection speed.

[0084] In the above situation, the input belt 31 is provided with a clamping and over-bottle-separating device 5 and an ion wind rod 6, both of which are arranged at one end away from the magnetic suspension track 41, and both of which are connected to the control device.

[0085] It is understandable that the bottle enters the product input belt 31 through the clamping transition bottle separation device. Through this device, on the one hand, it can achieve docking with the upstream equipment and realize the transition of the product; on the other hand, because the belt of the clamping transition bottle separation device is a low-speed belt and the product input belt 31 is a high-speed belt, there is a speed difference between the two. During the handover process, the adjacent products can be pulled apart to create conditions for subsequent bottle head detection and clamping and feeding. The ion wind bar 6 is installed at the front end of the automatic light inspection machine to remove static electricity and attached foreign matter on the plastic bottle, reducing the impact of foreign matter outside the bottle on the detection.

[0086] In the above embodiment, a feeding device 7 is provided at one end of the magnetic levitation track 41 close to the output belt 34. The feeding device 7 includes a feeding cylinder and a defective product classification and rejection device 8. The feeding cylinder is a normally retracted cylinder and is connected to the control device. The output end of the feeding cylinder is connected to the cam mechanism. The defective product classification and rejection device 8 is arranged at the bottom of the magnetic levitation track 41. The defective product classification and rejection device 8 includes three normally extended cylinders, which are connected to the control device and are correspondingly provided with slideways 9.

[0087] It should be noted that the products entering the straight section 413 of the magnetic levitation mechanism 4 will be transported to the unloading device 7 or the defective product sorting and rejection device 8. If the system detects that the products are qualified products, they will be output to the workstation of the unloading device 7 through the product output belt 34. If the system detects that the products are defective products, they will slide to the corresponding defective product collection box through the slide 9 of the defective product sorting and rejection device 8.

[0088] The unloading station is composed of two normally retracted cylinders, with a cam mechanism installed in the front part of the cylinder. When the system detects that the product is qualified, the cylinder does not move, and the roller 431 on the clamping device 42 will reach the highest point along the contour line of the cam mechanism, and open the clamping jaws. The bottle falls naturally under the action of its own gravity, and the unloading is completed; when a defective product is detected, the two cylinders extend at the same time, and the roller 431 on the clamping device 42 cannot contact the highest point of the cam mechanism. The clamping device 42 clamps the bottle and continues to move forward and enters the defective product classification and rejection device 8.

[0089] The defective product classification and rejection device 8 is composed of three normally extended cylinders and corresponding defective product classification slides 9. A cam mechanism is installed at the front part of the cylinder. The three cylinders represent three types of defective products respectively. When a defective product is detected, the corresponding cylinder will retract according to the type of defective product, and the roller 431 on the clamping device 42 will reach the highest point along the contour line of the cam mechanism, open the clamping jaws, and the bottle will naturally fall under the action of its own gravity, and slide to the corresponding defective product collection box through the defective product classification slide 9.

[0090] In summary, the utility model provides a magnetic levitation BFS light inspection machine for dynamic tracking and detection of foreign objects. The conveying method adopted by the current BFS automatic light inspection machines in the industry is linear conveying, which cannot realize the flipping detection of the bottle, and can only detect the foreign objects that sink to the bottom, and cannot dynamically track and detect the suspended foreign objects. The light inspection machine can simulate the manual shaking action of the bottle in the curve section 412 to shake the liquid in the bottle evenly, and after turning the bottle upside down, it can dynamically track and detect the suspended foreign objects in the bottle. At the same time, it solves the influence of the wall droplets on the filling quantity detection, and improves the detection accuracy.

[0091] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0092] The above is a detailed introduction to the magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects, characterized in that: include: Rack (1); A lifting mechanism (2) is arranged on the top of the frame (1) in a liftable manner; A conveying mechanism (3) is arranged on the top of the lifting mechanism (2), and the conveying mechanism (3) extends along the length direction of the frame (1); A magnetic suspension mechanism (4) is arranged on the top of the frame (1) and is located above the conveying mechanism (3); one end of the magnetic suspension mechanism (4) is provided with a sensor fixed to the top of the frame (1) to detect the position of the product; the magnetic suspension mechanism (4) is used for loading, shaking and flipping, capturing images and unloading; The lifting mechanism (2), the conveying mechanism (3), the magnetic suspension mechanism (4) and the sensor are all connected to a control device.

2. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 1 is characterized in that: The magnetic suspension mechanism (4) comprises: A magnetic suspension track (41) is a closed annular track, and the magnetic suspension track (41) is located above the conveying mechanism (3); A plurality of clamping devices (42) are provided, and the plurality of clamping devices (42) are movably arranged along the magnetic suspension track (41); A foreign body dynamic tracking and detection device (43) is arranged on both sides of the top of the magnetic suspension track (41); A bottle body detection device (44) is arranged on both sides of the top of the magnetic suspension track (41) and is located at the end of the foreign body dynamic tracking detection device (43); The clamping device (42), the foreign matter dynamic tracking detection device (43) and the bottle body detection device (44) are all connected to the control device.

3. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 2 is characterized in that: The magnetic suspension track (41) comprises: A fixing plate (411) is vertically arranged on the top of the frame (1) via a support, and the fixing plate (411) is arranged along the length direction of the frame (1); The curved section (412) is a semi-arc structure, and the curved section (412) is arranged at two ends of the fixing plate (411); The straight section (413) is arranged at the top and the bottom of the fixing plate (411), and the straight section (413) is correspondingly connected to the curved section (412) to form a closed circular track.

4. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 3 is characterized in that: The clamping device (42) comprises: A magnetic suspension mover module (421) is movably arranged along the magnetic suspension track (41), and the magnetic suspension mover module (421) is connected to the control device; A mechanical claw is connected to the magnetic suspension mover module (421); the mechanical claw is opened and closed by a cam mechanism during movement; the cam mechanism is arranged on the top of the frame (1); and the mechanical claw is a normally closed structure.

5. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 4 is characterized in that: The mechanical claw comprises: A clamp fixing plate (422) connected to the magnetic suspension mover module (421); There are two groups of push rods (423), and the two groups of push rods (423) are movably arranged along the length direction of the clamping jaw fixing plate (422) through corresponding linear sliding guide rails (424); The clamping plates (425) are provided with two groups, and the two groups of the clamping plates (425) are connected to the corresponding push rods (423). The two groups of the clamping plates (425) are driven by the push rods (423) to move relative to or opposite to each other along the length direction of the clamping jaw fixing plate (422); The polyurethane blocks (426) are provided in two groups, and the two groups of polyurethane blocks (426) are arranged on the inner sides of the corresponding clamping plates (425).

6. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 5 is characterized in that: A compression spring (427) is provided at one end of the linear sliding guide rail (424), and the compression spring (427) is movably arranged along the spring guide shaft. A spring stopper (428) is provided at one end of the compression spring (427), and the spring stopper (428) is connected to the end of the clamping jaw fixing plate (422), and a clamping jaw limit adjustment nut (429) is provided at the end of the spring stopper (428).

7. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 6 is characterized in that: A roller mounting plate (430) is provided on the outer side of the end of the push rod (423), a roller (431) is provided at the bottom of the roller mounting plate (430), and the roller (431) is movably arranged along the cam mechanism.

8. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to any one of claims 4 to 7, characterized in that: The conveying mechanism (3) comprises: An input belt (31) is a track-changing structure, which is arranged at one end of the frame (1), and the input belt (31) extends to one end of the magnetic suspension track (41); Feeding track-changing contour guardrails (32) are arranged on both sides of the input belt (31); A bottle head detection device (33) is installed on both sides of the feeding track changing contour guardrail (32) through a bracket, and the bottle head detection device (33) is connected to the control device; An output belt (34) is a track-changing structure, which is arranged at the other end of the frame (1), and the output belt (34) extends to the other end of the magnetic suspension track (41); The material unloading track changing profiling guardrail (35) is arranged on both sides of the output belt (34).

9. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 8 is characterized in that: The input belt (31) is provided with a clamping and over-bottle separation device (5) and an ion wind rod (6), the clamping and over-bottle separation device (5) and the ion wind rod (6) are both arranged at one end away from the magnetic suspension track (41), and the clamping and over-bottle separation device (5) and the ion wind rod (6) are both connected to the control device.

10. The magnetic suspension BFS light inspection machine for dynamic tracking and detection of foreign objects according to claim 9 is characterized in that: A material unloading device (7) is provided at one end of the magnetic suspension track (41) close to the output belt (34), and the material unloading device (7) comprises: A material discharge cylinder, wherein the material discharge cylinder is a normally retracted cylinder, an output end of the material discharge cylinder is connected to the cam mechanism, and the material discharge cylinder is connected to the control device; A defective product classification and rejection device (8) is arranged at the bottom of the magnetic suspension track (41), and the defective product classification and rejection device (8) comprises three normally extended cylinders, the normally extended cylinders are connected to the control device, and the normally extended cylinders are correspondingly provided with slideways (9).

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