A packaged food sorting device and sorting method thereof

Abstract

This invention discloses a packaged food sorting device and method, belonging to the field of food bottle and can sorting technology. The packaged food sorting device includes two vision inspection devices fixed to the front and back surfaces of a frame. The frame surface is provided with a conveying assembly for distributing bottles and cans in a stepped manner in front of the vision inspection devices. The frame surface is also provided with an interception assembly for intercepting bottles and cans in front of the vision inspection devices. The interception assembly includes two intercepting rods disposed on the surface of a connecting block. By setting the conveying assembly, the bottles and cans are raised to different heights as they pass through the first and second lifting sections, allowing multiple bottles and cans to be distributed in a stepped manner in front of the vision inspection devices. The vision inspection devices inspect the tops and sidewalls of the bottles and cans at an angle, avoiding mutual obstruction and enabling simultaneous inspection of multiple bottles and cans without creating blind spots.

Description

Technical Field

[0001] This invention relates to the field of food bottle and can sorting technology, and in particular to a packaged food sorting device and sorting method. Background Technology

[0002] Food bottle and can packaging defect sorting involves meticulous sorting of various food bottles and cans to identify defects. It primarily targets defects that occur during the sealing process, using specific methods and procedures to precisely sort out defective food bottles and cans.

[0003] Existing sorting devices typically use a single inspection method to sort food bottles and cans, resulting in relatively low efficiency in the entire sorting process. Furthermore, when inspecting multiple food bottles and cans simultaneously, the bottles and cans may obstruct each other, creating blind spots and leading to missed inspections.

[0004] Therefore, this application proposes a sorting device that can simultaneously detect multiple food bottles and cans and avoid mutual obstruction. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a packaged food sorting device and sorting method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A packaged food sorting device includes two vision inspection devices fixed to the front and back surfaces of a frame. The frame surface is provided with a conveying assembly for distributing bottles and cans in a stepped manner in front of the vision inspection devices. The frame surface is also provided with an interception assembly for intercepting the bottles and cans in front of the vision inspection devices. The interception assembly includes two interception bars disposed on the surface of a connecting block. The connecting block is raised and lowered by an electric push rod. The interception bars are obliquely arranged, and the angle matches the stepped distribution of the bottles and cans.

[0007] In some embodiments, the conveying assembly includes a first conveyor belt, a second conveyor belt, and a third conveyor belt, wherein the top of the first conveyor belt, the second conveyor belt, and the third conveyor belt are respectively provided with a first raised section, a second raised section, and a third raised section.

[0008] In some embodiments, the first raised section corresponds to a vision inspection device near the inlet end of the conveying assembly, the second raised section is located between two vision inspection devices, and the third raised section corresponds to a vision inspection device near the outlet end of the conveying assembly.

[0009] In some embodiments, the intercepting rods are L-shaped and slide on the surface of the connecting block. The intercepting assembly also includes two sets of clamping rods symmetrically arranged on both sides of the intercepting rods. The tops of the two clamping rods are obliquely arranged and combined to form a Y-shape.

[0010] In some embodiments, the surface of the clamping rod facing the entry end of the frame is provided with a separator for blocking the advance of bottles and cans.

[0011] In some embodiments, the separating assembly includes a stop bar that rotates on the surface of the clamping rod and a lifting block that slides vertically on the surface of the clamping rod. The end of the stop bar is fixed with a pull rope for pulling the stop bar to rotate to a vertical position, and the upper surface of the lifting block is fixed with a pressure bar that cooperates with the intercepting rod.

[0012] In some embodiments, two mounting plates are fixed to the surface of the frame, and two sets of support components to prevent bottles and cans from tipping over are respectively provided on the surfaces of the two mounting plates. The two support components are arranged one above the other, and the mounting plates correspond to the downslope surface of the first or third raised section.

[0013] In some embodiments, the support assembly includes a support rod hinged to the end of the slider, the support rod being located on the path of the bottle or can, the slider sliding on the surface of the mounting plate, the sliding direction of the slider being the same as the angle of the downslope.

[0014] In some embodiments, the mounting plate surface has a guide plate that slides laterally to push the support rod to rotate laterally, the length of the guide plate toward the end of the support rod being less than the travel distance of the support rod.

[0015] The present invention also provides a method for sorting packaged food, based on the above-mentioned packaged food sorting device, including the following steps: S1, bottle and can arrangement: multiple bottles and cans are conveyed by a conveying component, and under the action of the first lifting section, the second lifting section and the third lifting section, the multiple bottles and cans are distributed in a stepped manner in front of the vision inspection device. S2, Single visual inspection: Two intercepting bars clamp the stepped bottle and lift them up to separate them from the conveying assembly, so that the bottle is inspected by the visual inspection device in a stationary state. The obliquely set visual inspection device simultaneously inspects the top and side walls of the bottle. S3. Secondary visual inspection: After the first visual inspection, the bottles and cans are also arranged in a stepped manner in front of the next visual inspection device, and the bottles and cans are lifted up so that the second visual inspection device can inspect the other side of the bottles and cans. S4. Sorting: Parallel robots are installed at the rear of the frame. During the first and second visual inspections, unqualified bottles and cans are marked. When the bottles and cans pass under the parallel robots, the parallel robots remove the unqualified bottles and cans, thus achieving the purpose of sorting.

[0016] Compared with the prior art, the present invention provides a packaged food sorting device and sorting method, which has the following beneficial effects.

[0017] This invention elevates bottles and cans to different heights by setting a first lifting section, a second lifting section, and a third lifting section on the conveying assembly. This allows multiple bottles and cans to be distributed in a stepped manner in front of the vision inspection device. The vision inspection device then inspects the top and side walls of the bottles and cans at an angle, avoiding mutual obstruction and enabling simultaneous inspection of multiple bottles and cans without creating blind spots.

[0018] This invention, by setting up an interception component, allows two interception bars to be placed on both sides of the bottle or can when it passes the visual inspection device, temporarily stopping the bottle or can and enabling the visual inspection device to clearly observe the bottle or can, thus improving the inspection accuracy. At the same time, after the two interception bars clamp the bottle or can, they drive the bottle or can to move upwards, lifting it up and avoiding vibration caused by friction between the conveying component and the bottle or can.

[0019] 3. The present invention, by setting up a support component, places the support rod horizontally on the moving path of the bottle or can, and makes the support rod move synchronously with the movement of the bottle or can, so that it can always maintain a state of contact with the bottle or can, providing the necessary support force for the bottle or can and preventing the bottle or can from tipping over.

[0020] Other advantages, objectives and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be learned from practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the axial structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure in use of the present invention.

[0023] Figure 3 This is a schematic diagram of the conveying component in this invention.

[0024] Figure 4 This is a schematic diagram of the interception component in this invention.

[0025] Figure 5 This is a schematic diagram of the usage state structure of the interception component in this invention.

[0026] Figure 6 This is a schematic diagram of the interception component in this invention.

[0027] Figure 7 This is a schematic diagram of the structure of the separator component in this invention.

[0028] Figure 8 This is a schematic diagram of the usage state structure of the support component in this invention.

[0029] Figure 9 This is a rear view schematic diagram of the support component in this invention.

[0030] Figure 10 This is a side cross-sectional view of the support component in this invention.

[0031] Figure 11 This is a schematic diagram of the top plate structure from below in this invention.

[0032] Figure 12 This is an exploded structural diagram of the support component in this invention.

[0033] In the picture: 1. Frame; 2. Vision inspection device; 3. Conveying assembly; 301. First conveyor belt; 3011. First lifting section; 302. Second conveyor belt; 3021. Second lifting section; 303. Third conveyor belt; 3031. Third lifting section; 4. Interception assembly; 401. Interception bar; 402. Connecting block; 403. Electric push rod; 404. Clamping rod; 5. Separating assembly; 501. Stop bar; 502. Lifting block; 503. Pressure bar; 504. Pull rope; 6. Mounting plate; 7. Support assembly; 701. Support rod; 702. Slider; 703. Guide plate; 704. Threaded column; 705. Moving block; 706. Guide groove; 707. Guide column; 708. Rotating block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Reference Figure 1-12 , refer to Figure 1-12A packaged food sorting device includes two vision inspection devices 2 fixed to the front and back surfaces of a frame 1, arranged diagonally. The vision inspection devices 2 are existing technology and will not be described in detail. A conveying assembly 3 is provided on the surface of the frame 1 for distributing bottles and cans in a stepped manner in front of the vision inspection devices 2. The conveying assembly 3 includes a first conveyor belt 301, a second conveyor belt 302, and a third conveyor belt 303, all of which are driveably connected to the surface of the frame 1. 03. The first conveyor belt 301 has a first raised section 3011 on its surface, which corresponds to the visual inspection device 2 near the entry end of the conveyor assembly 3. The second conveyor belt 302 has a second raised section 3021 on its surface, which is located between the two visual inspection devices 2. The third conveyor belt 303 has a third raised section 3031 on its surface, which corresponds to the visual inspection device 2 located behind it. The height of the third raised section 3031 is higher than the height of the second raised section 3021, which is higher than the normal height of the conveyor belt.

[0036] It is understandable that by setting up the conveying assembly 3, the first conveyor belt 301, the second conveyor belt 302, and the third conveyor belt 303 convey the bottles and cans. When the bottles and cans pass through the first lifting section 3011 and the second lifting section 3021, they are raised to different heights, so that multiple bottles and cans are distributed in a stepped manner in front of the vision inspection device 2. The vision inspection device 2 inspects the bottle mouth at an angle. The angled vision inspection device 2 can simultaneously inspect the top and side wall of the bottle and can. After passing through another vision inspection device 2, it inspects the other side of the bottle and can. By distributing the bottles and cans in a stepped manner in front of the vision inspection device 2, mutual obstruction can be avoided, and multiple bottles and cans can be inspected simultaneously without creating blind spots. A parallel robot is set at the rear of the frame 1. When a defective condition is detected, the parallel robot removes the defective bottle or can as it passes under the robot.

[0037] Specifically, the surface of the frame 1 is provided with an interception component 4 to intercept bottles and cans in front of the vision inspection device 2. The interception component 4 is located on the side of the frame 1 away from the vision inspection device 2. The interception component 4 includes two interception rods 401, which are set on the surface of the connecting block 402. The connecting block 402 is raised and lowered by an electric push rod 403, which is fixed on the surface of the frame 1. The interception rods 401 are set at an angle, and the angle matches the stepped distribution of the bottles and cans.

[0038] Understandably, by setting up the interception component 4, when the bottle or can passes through the vision inspection device 2, the electric push rod 403 drives the connecting block 402 and the interception rod 401 to descend, so that the two interception rods 401 fit on both sides of the bottle or can, temporarily stopping the bottle or can, so that the vision inspection device 2 can clearly observe the bottle or can, thus improving the detection accuracy; by setting the interception rod 401 at an angle to adapt to the stepped distribution of the bottle or can, the interception rod 401 can simultaneously intercept the bottle or can or simultaneously detach from the bottle or can when it is raised or lowered.

[0039] Specifically, the interceptor bars 401 are L-shaped and slide on the surface of the connecting block 402. The upper surface of the connecting block 402 is provided with springs that push the two interceptor bars 401 to separate from each other. Rubber pads are provided on opposite sides of the two interceptor bars 401.

[0040] The interception assembly 4 also includes two sets of clamping rods 404 symmetrically arranged on both sides of the interception rod 401. The tops of the two clamping rods 404 are obliquely arranged and combined in a Y shape. The bottoms of the clamping rods 404 are vertically arranged. The two sets of clamping rods 404 are fixed to the surface of the frame 1 and the clamping rods 404 are located between the bottles and cans.

[0041] Understandably, since the two intercepting rods 401 are used to intercept bottles while they are in motion, the initial distance between the two intercepting rods 401 is set to be greater than the diameter of the bottle or can to facilitate the movement of the intercepting rods 401 to the sides of the bottle or can as they descend. By setting multiple clamping rods 404, the clamping rods 404 can exert their pushing effect during the descent of the intercepting rods 401, causing the intercepting rods 401 to move closer to each other. When the intercepting rods 401 are finally located in the vertical position of the clamping rods 404, they can clamp onto the surface of the bottle or can, neatly aligning the multiple bottles or cans. Meanwhile, since the bottle is stationary while the conveyor belt is in motion, friction occurs between them, which can easily cause the bottle to shake, affecting the normal detection operation of the vision inspection device 2. Therefore, after the two intercepting rods 401 complete the clamping action on the bottle, the electric push rod 403 drives the intercepting rods 401 and the bottle to slide upward together, lifting the bottle. During this process, the intercepting rods 401 remain in the vertical part of the clamping rods 404 to prevent the intercepting rods 401 from separating from the bottle. By separating the bottle from the conveyor belt, shaking of the bottle can be effectively avoided. When it is necessary to release the bottle, the intercepting rods 401 continue to rise. When the intercepting rods 401 pass through the inclined section of the clamping rods 404, the spring pushes the two intercepting rods 401 to separate from each other, smoothly releasing the bottle.

[0042] Specifically, a dividing assembly 5 for blocking the advance of bottles and cans is provided on the surface of the clamping rod 404 facing the entry end of the frame 1. The dividing assembly 5 includes a stop bar 501 that rotates on the surface of the clamping rod 404 and a lifting block 502 that slides vertically on the surface of the clamping rod 404. The lifting block 502 slides upward by being pushed by a spring. The lower end of the spring is fixed to the surface of the frame 1. A torsion spring for driving the stop bar 501 to rotate into the movement path of the bottles and cans is sleeved on the rotating shaft surface of the stop bar 501. A pull rope 504 for pulling the stop bar 501 to rotate to a vertical position is fixed at the end of the stop bar 501. The upper end of the pull rope 504 is fixed to the side of the lifting block 502. A pressure bar 503 is fixed on the upper surface of the lifting block 502. The pressure bar 503 is located below the blocking rod 401.

[0043] This can be understood as follows: Since the interceptor bar 401 moves to the side of the bottle / can by lifting, it cannot descend smoothly when two bottles / cans are in contact with each other. Therefore, by setting up the separator component 5, the baffle bar 501 is used to separate the bottles / cans, thus ensuring that a single bottle / can can move smoothly between the two interceptor bars 401, which facilitates its cooperation with the interceptor bars 401. During the descent of the interceptor bar 401, it abuts against the pressure bar 503, causing the lifting block 502 to slide downwards. This allows the baffle bar 501 to rotate to a horizontal position under the action of the torsion spring, making it easier for it to cut between the two bottles / cans, successfully separate them, and intercept the following bottles / cans. When the blocking bar 401 rises, the bottles between the blocking bars 401 will continue to move forward with the help of the conveyor belt. At the same time, the blocking bar 401 and the pressure bar 503 will separate, and the lifting block 502 will slide upward through the spring, so that the pull rope 504 will drive the stop bar 501 to rotate to a vertical position, and the blocked bottles will continue to move forward. Because the outer surface of the bottles is cylindrical, the stop bar 501 can cut into the side of the bottles from the side of the bottles in a rotating manner, which can effectively separate the two bottles.

[0044] Specifically, two mounting plates 6 are fixed on the surface of the frame 1. Two sets of support components 7 to prevent bottles and cans from tipping over are respectively provided on the surface of the two mounting plates 6. The two support components 7 are arranged vertically. The mounting plates 6 correspond to the downslope surface of the first raised section 3011 or the third raised section 3031. The support components 7 are set at an angle, and the angle is the same as the angle of the downslope surface. The support assembly 7 includes a support rod 701 hinged to the end of the slider 702. The support rod 701 is located on the path of the bottle / can. The slider 702 slides on the surface of the mounting plate 6. The sliding direction of the slider 702 is the same as the angle of the downslope. The slider 702 is driven to move by a threaded post 704 and a moving block 705. The threaded post 704 rotates on the side of the mounting plate 6 away from the bottle / can. The threaded post 704 is driven by a motor, which is fixed to the surface of the mounting plate 6. The moving block 705 is threadedly connected to the surface of the threaded post 704 and is fixed to the lower surface of the slider 702. The threaded post 704 is obliquely arranged and corresponds to the downslope of the first raised section 3011 or the third raised section 3031.

[0045] Understandably, because the first and second raised sections 3011 and 3021 have relatively high vertical heights, the inclination angles formed by their slopes are relatively large. On such steep slopes, the bottles are unstable and prone to tipping over. When the bottles pass over the uphill slopes of the first and second raised sections 3011 and 3021, multiple bottles are close together, relying on and supporting each other, which increases the overall stability to a certain extent, making tipping less likely. However, when the bottles pass over the downhill slopes, they move individually, lacking... The mutual support between the bottles and cans greatly increases the probability of tipping over. Therefore, to prevent the bottles and cans from tipping over when passing down a slope, a support component 7 is installed on the path down the slope to prevent the bottles and cans from tipping over. Specifically, the support rod 701 is horizontally positioned on the movement path of the bottles and cans. The rotation of the threaded column 704 drives the moving block 705 and the slider 702 to slide on the surface of the mounting plate 6, so that the support rod 701 moves synchronously with the movement of the bottles and cans, and can always maintain a state of contact with the bottles and cans, providing the necessary support force to prevent the bottles and cans from tipping over. By setting two sets of support components 7 at the top and bottom, the two support components 7 alternately support the bottle and can, achieving the effect of continuous support for the bottle and can.

[0046] Specifically, a guide plate 703 slides laterally on the surface of the mounting plate 6. The end of the guide plate 703 facing the support rod 701 is L-shaped and facing downwards. The side of the guide plate 703 facing the inlet end of the conveying assembly 3 is provided with an inclined surface. A torsion spring for driving the support rod 701 to rotate vertically is sleeved on the rotating shaft surface of the support rod 701. The length of the end of the guide plate 703 facing the support rod 701 is less than the travel of the support rod 701.

[0047] It is understandable that by setting the guide plate 703, when the guide plate 703 slides towards the support rod 701, the guide plate 703 interacts with the support rod 701, pushing the support rod 701 to rotate to a lateral position. At this time, the support rod 701 is located on the moving path of the bottle, which can realize the function of supporting the moving bottle and ensuring that the bottle remains stable during the movement. When the bottle moves to the bottom of the slope, the support rod 701 separates from the guide plate 703. The support rod 701 is rotated to a vertical position by the torsion spring. The threaded column 704 drives the slider 702 and the support rod 701 to return. At the same time, the guide plate 703 slides away from the support rod 701 to avoid motion interference.

[0048] Specifically, the guide plate 703 slides on the surface of the mounting plate 6 via the guide groove 706 and the guide post 707. The guide groove 706 is opened on the lower surface of the guide plate 703 and is located at the end away from the support rod 701. The guide post 707 is fixed on the upper surface of the slider 702 and slides inside the guide groove 706. The guide groove 706 includes a first transverse groove and a second transverse groove, which are parallel to each other, and both ends of the first transverse groove and the second transverse groove are connected by inclined grooves.

[0049] It is understandable that by setting the guide groove 706 and the guide post 707, the slider 702 can drive the guide plate 703 to slide; when the slider 702 slides on the surface of the mounting plate 6, the guide post 707 will move in the guide groove 706. When the guide post 707 is in the first transverse groove of the guide groove 706, the guide plate 703 extends out of the mounting plate 6 and abuts against the support rod 701, pushing the support rod 701 to rotate to the transverse state; When the support rod 701 moves to the bottom of the downslope, the guide post 707 will slide smoothly into the second transverse groove through the inclined groove. At this time, the guide plate 703 will be driven to slide and retract into the interior of the mounting plate 6, separating from the support rod 701, so that the support rod 701 can rotate to a vertical position. After the support rod 701 completes its return stroke, the guide column 707 passes through another inclined groove and slides back into the first transverse groove. At this time, the guide plate 703 extends out of the mounting plate 6 again to prepare for the use of the support rod 701 again. When the support rod 701 moves downward again, the inclined surface at the end of the guide plate 703 allows the support rod 701 to smoothly contact the guide plate 703 and maintain a transverse state.

[0050] Specifically, the support rod 701 located below rotates at the end of the slider 702 via the rotating block 708. The rotating shaft surface of the rotating block 708 is provided with a torsion spring to keep the support rod 701 vertical. The support rod 701 is hinged to the surface of the rotating block 708. The mounting plate 6 is stepped, and the two support components 7 are located on the two stepped surfaces of the mounting plate 6 respectively, so that the two sets of support components 7 are staggered.

[0051] Understandably, since the upper support rod 701 is in a horizontal position during the return stroke of the lower support rod 701, the two support rods 701 interfere with each other. Therefore, a rotating block 708 is set at the end of the lower support rod 701. When the lower support rod 701 interferes with the upper support rod 701, the lower support rod 701 rotates to an oblique position through the rotating block 708, misaligning with the upper support rod 701 to avoid a hard interference. By setting the mounting plate 6 in a stepped shape, the two sets of support components 7 are misaligned. When the lower support rod 701 remains vertical, interference with the upper extended guide plate 703 is avoided, allowing the lower support rod 701 to return smoothly.

[0052] This embodiment also provides a method for sorting packaged food, based on the above-described packaged food sorting device, including the following steps: S1. Bottle and can arrangement: Multiple bottles and cans are conveyed by the conveying component 3. Under the action of the first lifting section 3011, the second lifting section 3021 and the third lifting section 3031, the multiple bottles and cans are arranged in a stepped manner in front of the vision inspection device 2. S2, First visual inspection: Two intercepting bars 401 clamp the stepped bottle and lift the intercepting bars 401 to separate them from the conveying assembly 3, so that the bottle is inspected by the visual inspection device 2 in a stationary state. The obliquely set visual inspection device 2 can simultaneously inspect the top and side walls of the bottle. S3, Secondary visual inspection: After the first visual inspection, the bottles and cans are also arranged in a stepped manner in front of the next visual inspection device 2, and the bottles and cans are lifted up so that the second visual inspection device 2 can inspect the other side of the bottles and cans. S4. Sorting: A parallel robot is installed at the rear of the frame 1. During the first and second visual inspections, unqualified bottles and cans are marked. When the bottles and cans pass under the parallel robot, the parallel robot removes the unqualified bottles and cans, thus achieving the purpose of sorting.

[0053] In this invention, the conveying assembly 3 conveys the bottles and cans. As the bottles and cans pass through the first lifting section 3011 and the second lifting section 3021, they are raised to different heights, causing multiple bottles and cans to be distributed in a stepped pattern in front of the visual inspection device 2. An electric push rod 403 drives the connecting block 402 and the intercepting rod 401 to descend. Under the action of the clamping rod 404, the intercepting rods 401 move closer together. When the intercepting rods 401 are in the vertical position of the clamping rod 404, they can clamp the surface of the bottles and cans, neatly aligning the multiple bottles and cans. Then, the electric push rod 403 drives the intercepting rod 401 to descend. The interceptor bar 401 slides upwards together with the bottle / can, lifting the bottle / can to prevent it from shaking. Simultaneously, as the interceptor bar 401 descends, it resists the pressure bar 503, causing the lifting block 502 to slide downwards. This allows the stop bar 501 to rotate to a horizontal position under the action of the torsion spring, facilitating its entry between the two bottles / cans and successfully separating them to intercept the following bottles / cans. The visual inspection device 2 then inspects the bottle / can opening at an angle. After the inspection, the interceptor bar 401 continues to rise. When the interceptor bar 401 passes... When the clamping rod 404 is tilted, the spring pushes the two intercepting rods 401 to separate, smoothly releasing the bottle, allowing it to fall onto the conveying assembly 3 and continue moving. Simultaneously, the intercepting rod 401 rises and separates from the pressure rod 503, pushing the lifting block 502 upwards via the spring, causing the pull rope 504 to rotate the stop rod 501 to a vertical position, allowing the blocked bottle to continue moving forward. When the intercepting rod 401 descends again, it clamps the bottles in front, while the bottles behind are blocked by the stop rod 501. When the bottle passes over a downhill slope, the threaded column 704 drives the slider 702 and the support... The support rod 701 moves, and the guide plate 703 laterally positions the support rod 701 on the moving path of the bottle, so that the support rod 701 moves synchronously with the bottle and can, and can always maintain a state of contact with the bottle and can, providing the necessary support force to prevent the bottle and can from tipping over; after the bottle and can passes through another vision inspection device 2, the other side of the bottle and can is inspected through the above steps; to avoid the generation of blind spots, during the two inspections, unqualified bottles and cans are marked, so that when the bottle and can pass under the parallel robot, the parallel robot removes the unqualified bottles and cans.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A packaged food sorting device, characterized in that, The device includes two visual inspection devices (2) fixed on the front and back surfaces of the frame (1). The surface of the frame (1) is provided with a conveying assembly (3) for distributing bottles and cans in a stepped manner in front of the visual inspection devices (2). The surface of the frame (1) is provided with an interception assembly (4) for intercepting bottles and cans in front of the visual inspection devices (2). The interception assembly (4) includes two interception rods (401) disposed on the surface of the connecting block (402). The interception rods (401) are obliquely disposed, and the oblique angle matches the stepped distribution of the bottles and cans.

2. The packaged food sorting device according to claim 1, characterized in that, The conveying assembly (3) includes a first conveyor belt (301), a second conveyor belt (302) and a third conveyor belt (303), and the top of the first conveyor belt (301), the second conveyor belt (302) and the third conveyor belt (303) are respectively provided with a first raised section (3011), a second raised section (3021) and a third raised section (3031).

3. The packaged food sorting device according to claim 2, characterized in that, The first raised section (3011) corresponds to the visual inspection device (2) near the entry end of the conveying assembly (3), the second raised section (3021) is located between the two visual inspection devices (2), and the third raised section (3031) corresponds to the visual inspection device (2) near the exit end of the conveying assembly (3).

4. A packaged food sorting device according to claim 1, characterized in that, The intercepting rod (401) is L-shaped and slides on the surface of the connecting block (402). The intercepting assembly (4) also includes two sets of clamping rods (404) symmetrically arranged on both sides of the intercepting rod (401). The tops of the two clamping rods (404) are obliquely arranged and combined into a Y shape.

5. A packaged food sorting device according to claim 1, characterized in that, A separator assembly (5) for blocking the advance of bottles and cans is provided on the surface of the clamping rod (404) facing the entry end of the frame (1).

6. A packaged food sorting device according to claim 5, characterized in that, The separating assembly (5) includes a stop bar (501) that rotates on the surface of the clamping rod (404) and a lifting block (502) that slides vertically on the surface of the clamping rod (404). The end of the stop bar (501) is fixed with a pull rope (504) for pulling the stop bar (501) to rotate to the vertical position. The upper surface of the lifting block (502) is fixed with a pressure bar (503) that cooperates with the intercepting rod (401).

7. A packaged food sorting device according to claim 1, characterized in that, The frame (1) has two mounting plates (6) fixed on its surface. The two mounting plates (6) are respectively provided with two sets of support components (7) to prevent bottles and cans from tipping over. The two support components (7) are arranged vertically. The mounting plate (6) corresponds to the downslope surface of the first raised section (3011) or the third raised section (3031).

8. A packaged food sorting device according to claim 7, characterized in that, The support assembly (7) includes a support rod (701) hinged to the end of the slider (702), the support rod (701) being located on the path of the bottle, the slider (702) sliding on the surface of the mounting plate (6), and the sliding direction of the slider (702) being the same as the angle of the downslope.

9. A packaged food sorting device according to claim 8, characterized in that, The mounting plate (6) has a guide plate (703) that slides laterally on its surface to push the support rod (701) to rotate laterally. The length of the guide plate (703) toward the end of the support rod (701) is less than the travel of the support rod (701).

10. A method for sorting packaged food, based on a packaged food sorting device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Bottle and can arrangement: Multiple bottles and cans are conveyed by the conveying assembly (3). Under the action of the first lifting section (3011), the second lifting section (3021) and the third lifting section (3031), the multiple bottles and cans are arranged in a stepped manner in front of the visual inspection device (2). S2, First visual inspection: Two intercepting bars (401) clamp the stepped bottle and lift the intercepting bars (401) to separate them from the conveying assembly (3), so that the bottle is inspected by the visual inspection device (2) in a stationary state. The obliquely set visual inspection device (2) simultaneously inspects the top and side walls of the bottle. S3, Secondary visual inspection: After the first visual inspection, the bottles and cans are also arranged in a stepped manner in front of the next visual inspection device (2), and the bottles and cans are lifted up so that the second visual inspection device (2) can inspect the other side of the bottles and cans. S4. Sorting: The frame (1) is equipped with a parallel robot at the tail. During the first visual inspection and the second visual inspection, unqualified bottles and cans are marked. When the bottles and cans pass under the parallel robot, the parallel robot removes the unqualified bottles and cans to achieve the purpose of sorting.

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