Injection molded part vision inspection apparatus

Abstract

This utility model relates to the field of injection molded part inspection technology, and discloses an injection molded part visual inspection device, including: a worktable, a first feeding belt, and an imaging component. The worktable includes a first feeding belt disposed on the worktable for conveying products; the imaging component includes an upper imaging component, a side imaging component, and a bottom imaging component disposed on the worktable along the feeding direction of the first feeding belt. The upper imaging component images the top surface of the product conveyed by the first feeding belt, the side imaging components image the side surface of the product conveyed by the first feeding belt, and the imaging end of the bottom imaging component images the bottom surface of the product conveyed.

Description

Technical Field

[0001] This utility model relates to the field of injection molded part inspection technology, specifically to a visual inspection device for injection molded parts. Background Technology

[0002] Injection molded parts refer to various injection-molded products produced by injection molding machines, including various parts. They are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. During the injection molding process, defects such as flash, deformation, burns, cracks, and cold material are commonly found due to reasons such as rough cavity surfaces, small draft angles, inconsistent demolding direction with the machining texture, insufficient cooling time, unreasonable mold ejection distribution, and operator errors. If these defective products flow into the next production chain, they can lead to certain safety hazards in the final product. Therefore, quality inspection after injection molding is crucial.

[0003] In traditional injection molding part inspection, methods typically include manual inspection and inspection equipment. Manual inspection usually incurs high labor costs, has low efficiency, and prolonged operation can lead to visual fatigue for quality inspectors, often resulting in missed or incorrect inspections. Existing injection molding part inspection equipment struggles to perform 360° inspections, limiting the inspection angle and causing incomplete coverage, thus affecting accuracy.

[0004] Therefore, there is an urgent need for a visual inspection device for injection molded parts to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a visual inspection device for injection molded parts, so as to solve the problems that manual inspection of injection molded parts is prone to missed inspections, false inspections, and difficulty in performing 360° inspection of injection molded parts, which affects the accuracy of the inspection.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a visual inspection device for injection molded parts, comprising:

[0007] Workbench;

[0008] The first feeding belt is set on the workbench and is used to transport products;

[0009] The imaging assembly includes an upper imaging component, a side imaging component, and a bottom imaging component disposed on the worktable along the feeding direction of the first feeding belt. The upper imaging component images the top surface of the conveyed product of the first feeding belt, the side imaging component images the side surface of the conveyed product of the first feeding belt, and the imaging end of the bottom imaging component images the bottom surface of the conveyed product.

[0010] As a preferred embodiment of a visual inspection device for injection molded parts, the side imaging component is provided in a plurality of parts, and the imaging ends of the plurality of side imaging components focus on the same conveyed product.

[0011] As a preferred embodiment of a visual inspection device for injection molded parts, it further includes a light source disposed on the upper imaging member and the side imaging member, the light source being used to illuminate the conveyed product.

[0012] As a preferred embodiment of a visual inspection device for injection molded parts, it further includes a support assembly positioned on the worktable, the support assembly being used to support the upper imaging component and the side imaging component.

[0013] As a preferred embodiment of a visual inspection device for injection molded parts, the support assembly includes a support frame and a connecting plate. The support frame is positioned on the worktable, and the connecting plate is longitudinally movable on the support frame. The side of the support frame is provided with a main scale, and the side of the connecting plate is provided with a secondary scale for alignment with the main scale.

[0014] As a preferred embodiment of a visual inspection device for injection molded parts, it further includes a fixing component connected to the support frame and the connecting plate, the fixing component being used to fix the height of the connecting plate on the support frame.

[0015] As a preferred embodiment of a visual inspection device for injection molded parts, the fixing component includes a slide rail, a slider, and a fastener. The slide rail is wedge-shaped and arranged on the surface of the support frame. The slider is disposed on the side of the connecting plate. The side of the slider has an opening for matching the slide rail and a locking gap. A toothed rack is laid on the slide rail. A fixing member is provided on the side of the slider. One end of the fixing member passes through the opening. The end of the fixing member passing through the opening has a hobbing tooth that meshes with the toothed rack. The fastener is screwed from the side of the slider through the gap.

[0016] As a preferred embodiment of a visual inspection device for injection molded parts, it further includes a feeding assembly and a placement area, wherein the placement area is arranged on the worktable, the feeding assembly is connected between the bottom imaging component and the placement area, and the placement area is used to place qualified products.

[0017] As a preferred embodiment of a visual inspection device for injection molded parts, the feeding assembly includes a robotic arm, a suction cup, and a material tray. The placement area includes a first placement area and a second placement area. The material tray is placed in the first placement area. The robotic arm is positioned on the worktable. The suction cup is disposed at the moving end of the robotic arm. There are several robotic arms. The several robotic arms drive the suction cups to reciprocate between the first placement area and the bottom imaging component, and between the first placement area and the second placement area.

[0018] As a preferred embodiment of a visual inspection device for injection molded parts, the placement area is provided with a second feeding belt and a lifting plate. The side of the worktable has an open opening that communicates with the placement area. The second feeding belt passes through the open opening and is positioned at the bottom of the placement area. The lifting plate can be moved up and down along the top and bottom of the placement area and is arranged in the placement area.

[0019] The beneficial effects of this invention are as follows: By integrating an upper imaging component, a side imaging component, and a bottom imaging component in the feeding direction of the first feeding belt, and synchronizing them with the conveying rhythm of the feeding belt, a three-dimensional visual inspection network for the top, side, and bottom surfaces of the injection molded part is formed. Full surface inspection is completed as the product moves along the production line, avoiding manual flipping or pauses, thus achieving efficient production line inspection. This meets the online full inspection requirements of mass production, while clearly capturing defects hidden in corners and gaps of the product, effectively improving inspection quality and production efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a visual inspection device for injection molded parts provided by this utility model;

[0021] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0022] Figure 3 A top view of a visual inspection device for injection molded parts provided by this utility model;

[0023] Figure 4 for Figure 3 Cross-sectional view of AA in the middle;

[0024] Figure 5 This is a schematic diagram of the overall structure of a visual inspection device for injection molded parts, without the worktable.

[0025] The following are the labeling elements in the figure:

[0026] 1. Workbench; 2. First feed belt; 3. Imaging assembly; 301. Upper imaging component; 302. Side imaging component; 303. Bottom imaging component;

[0027] 4. Support components; 401. Support frame; 402. Connecting plate; 403. Mounting plate;

[0028] 5. Light source;

[0029] 6. Fixing components; 601. Slide rail; 602. Slider; 603. Fasteners;

[0030] 7. Rack; 8. Opening; 9. Gear hobbing; 10. Spacing;

[0031] 11. Feeding assembly; 1101. Robotic arm; 1102. Suction cup;

[0032] 12. Second feeding belt; 13. Lifting plate; 14. Feeding rack; 15. Material tray; 16. First placement area; 17. Second placement area. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0038] In one embodiment of this utility model, such as Figure 1-5 As shown, a visual inspection device for injection molded parts is provided, including: a worktable 1, a first feeding belt 2, and an imaging component 3. The worktable 1; the first feeding belt 2, disposed on the worktable 1, is used to transport products; the imaging component 3 includes an upper imaging component 301, a side imaging component 302, and a bottom imaging component 303 disposed on the worktable 1 along the feeding direction of the first feeding belt 2. The upper imaging component 301 images the top surface of the product transported by the first feeding belt 2, the side imaging component 302 images the side surface of the product transported by the first feeding belt 2, and the imaging end of the bottom imaging component 303 images the bottom surface of the product transported.

[0039] The injection molding part visual inspection equipment provided by this utility model integrates an upper imaging component 301, a side imaging component 302, and a bottom imaging component 303 along the feeding direction of the first feeding belt 2, and synchronizes them with the conveying rhythm of the feeding belt to form a three-dimensional visual inspection network for the top, side, and bottom surfaces of the injection molding part. Full surface inspection is completed as the product moves along the production line, avoiding manual flipping or pauses, thus achieving efficient production line inspection. It meets the online full inspection requirements of mass production, and can clearly capture defects hidden in corners and gaps of the product, effectively improving inspection quality and production efficiency.

[0040] In this embodiment, the upper imaging component 301, the side imaging component 302, and the bottom imaging component 303 can be composed of cameras, and the arrangement and order of the upper imaging component 301, the side imaging component 302, and the bottom imaging component 303 can be reasonably changed according to the needs of the enterprise.

[0041] Preferably, several side imaging components 302 are provided, and the imaging ends of the several side imaging components focus on the same conveyed product. In this embodiment, four side imaging components 302 are provided. The four side imaging components 302 are evenly distributed circumferentially around the predicted product. This forms a 360° detection field of view, effectively eliminating detection blind spots and improving detection quality.

[0042] Preferably, the visual inspection equipment for injection molded parts further includes a support component 4, which is positioned on the worktable 1. The support component 4 is used to effectively enhance the structural stability of the imaging component 3, reduce imaging sway caused by vibration and other external interference, ensure clear and accurate images, and improve the reliability of defect detection.

[0043] Specifically, the support assembly 4 includes a support frame 401 and a connecting plate 402. The support frame 401 is positioned on the worktable 1, and the connecting plate 402 is longitudinally movable on the support frame 401. The longitudinal adjustability of the connecting plate 402 simplifies height adjustment, adapting to the optimal imaging distance requirements of injection molded parts of different thicknesses and improving the equipment's adaptability to products of various specifications. The side of the support frame 401 has a main scale, and the side of the connecting plate 402 has a secondary scale for alignment with the main scale. The main and secondary scales provide a reference for height adjustment, ensuring that each adjustment reaches the optimal detection position, improving the consistency and accuracy of the detection.

[0044] In this embodiment, when installing the side imaging component 302, the shooting distance can be extended and the test detection area can be expanded by using the mounting plate 403.

[0045] Preferably, the visual inspection device for injection molded parts further includes a light source 5, which is disposed on the upper imaging component 301 and the side imaging component 302. The light source 5 is used to illuminate the conveyed product, effectively reducing shadows and reflections, ensuring image contrast and clarity, thereby more accurately capturing the details and potential defects on the surface of the injection molded part, and effectively enhancing image quality.

[0046] Preferably, the visual inspection equipment for injection molded parts further includes a fixing component 6 connected to the support frame 401 and the connecting plate 402. The fixing component 6 is used to fix the height of the connecting plate 402 on the support frame 401.

[0047] Specifically, the fixing component 6 includes a slide rail 601, a slider 602, and a fastener 603. The slide rail 601 is wedge-shaped and positioned on the surface of the support frame 401. The slider 602 is located on the side of the connecting plate 402. The side of the slider 602 has an opening 8 for matching the slide rail 601 and a locking gap 10. A rack 7 is mounted on the slide rail 601. A fixing member is located on the side of the slider 602, with one end of the fixing member passing through the opening 8 and a hobbing tooth 9 at the end of the fixing member passing through the opening 8. The hobbing tooth 9 meshes with the rack 7. Through the slide rail 601 and slider 602, combined with the precise engagement of the rack 7 and the hobbing tooth 9, the height adjustment of the connecting plate 402 is more accurate, ensuring that each adjustment reaches the optimal imaging position, effectively improving the consistency and accuracy of the detection. The fastener 603 screws onto the side of the slider 602 through the gap 10. By screwing the fastener 603 into the slider 602 to compress the gap 10, the slider 602 is pulled tight onto the slide rail 601, thereby completing the fixing operation of the imaging component 3.

[0048] Preferably, the visual inspection equipment for injection molded parts further includes a feeding component 11 and a placement area. The placement area is arranged on the worktable 1. The feeding component 11 is connected between the bottom imaging component 303 and the placement area. The placement area is used to place qualified products.

[0049] Specifically, the feeding assembly 11 includes a robotic arm 1101, a suction cup 1102, and a material tray 15. The placement areas include a first placement area 16 and a second placement area 17. The material tray 15 is placed in the first placement area 16. The robotic arm 1101 is positioned on the worktable 1. The suction cup 1102 is located at the moving end of the robotic arm 1101. Several robotic arms 1101 are provided. These robotic arms 1101 drive the suction cups 1102 to reciprocate between the first placement area 16 and the bottom imaging component 303, and between the first placement area 16 and the second placement area 17, respectively. The robotic arm 1101 forms an injection molded part inspection mechanism through a slide table and a cylinder.

[0050] Furthermore, a second feeding belt 12 and a lifting plate 13 are provided in the placement area, and the lifting plate 13 can also be controlled by a cylinder to move up and down. An open opening communicating with the placement area is provided on the side of the workbench 1, the second feeding belt 12 passes through the open opening and is positioned at the bottom of the placement area, and the lifting plate 13 can be moved up and down along the top and bottom of the placement area.

[0051] The material unloading process in this embodiment is as follows: The second feeding belt 12 and lifting plate 13 in the first placement area 16 are arranged in the same manner as those in the second placement area 17. The lifting plate 13 is located at the end of the second feeding belt 12 and is offset from it. Multiple stacked trays 15 are manually placed at the beginning of the second feeding belt 12 in the first placement area 16, which is then empty. The second feeding belt 12 transports the trays 15 to the end, and then the lifting plate 13 lifts them to the top of the first placement area 16. When the trays 15 in the first placement area 16 are full, the robot arm 1101 uses a suction cup 1102 to transport one layer of trays 15 to the second placement area 17. For each layer transported, the lifting plate 13 in the first placement area 16 rises one layer, and the lifting plate 13 in the second placement area 17 descends one layer. Once the second placement area 17 is full, the second feeding belt 12 sends the trays 15 out of the opening.

[0052] Preferably, both the first feeding belt 2 and the second feeding belt 12 can be commercially available synchronous belts. In this embodiment, the first feeding belt 2 is equipped with a feeding guide 14 at its upper part. At the front end of the first feeding belt 2, the feeding guide 14 has a feeding guide function at its middle interval, and the interval 10 continuously contracts along the transport direction of the first feeding end. At the end of the first feeding belt 2, the feeding guide 14 seals the end of the first feeding belt 2, which serves as a limiting function and holds the product to be tested.

[0053] In this embodiment, the bottom imaging component 303 is positioned on the worktable 1. After the product to be tested undergoes visual inspection by the upper imaging component 301 and the side imaging component 302 on the first feeding belt 2, it is stuck on the first feeding belt 2. Then, the suction cup 1102 of the robot arm 1101 is used to transport the product to the bottom imaging component 303. If it is a qualified product, it can be transported to the material tray 15 by the robot arm 1101 for traying. If it is a defective product, the robot arm 1101 will transport it to the discharge port on the worktable 1 for discharge.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A visual inspection device for injection molded parts, characterized in that, include: Workbench; The first feeding belt is set on the workbench and is used to transport products; The imaging assembly includes an upper imaging component, a side imaging component, and a bottom imaging component disposed on the worktable along the feeding direction of the first feeding belt. The upper imaging component images the top surface of the conveyed product of the first feeding belt, the side imaging component images the side surface of the conveyed product of the first feeding belt, and the imaging end of the bottom imaging component images the bottom surface of the conveyed product.

2. The visual inspection equipment for injection molded parts according to claim 1, characterized in that, The side imaging component is provided in several parts, and the imaging ends of the several side imaging components focus on the same conveying product.

3. A visual inspection device for injection molded parts according to claim 1 or 2, characterized in that, It also includes a light source disposed on the upper imaging member and the side imaging member, the light source being used to illuminate the conveyed product.

4. A visual inspection device for injection molded parts according to claim 1 or 2, characterized in that, It also includes a support assembly positioned on the worktable, the support assembly being used to support the upper imaging component and the side imaging component.

5. The visual inspection equipment for injection molded parts according to claim 4, characterized in that, The support assembly includes a support frame and a connecting plate. The support frame is positioned on the worktable, and the connecting plate is longitudinally movable on the support frame. The side of the support frame is provided with a main scale, and the side of the connecting plate is provided with a secondary scale for alignment with the main scale.

6. The visual inspection equipment for injection molded parts according to claim 5, characterized in that, It also includes a fixing component connected to the support frame and the connecting plate, the fixing component being used to fix the height of the connecting plate on the support frame.

7. The visual inspection equipment for injection molded parts according to claim 6, characterized in that, The fixing component includes a slide rail, a slider, and a fastener. The slide rail is wedge-shaped and arranged on the surface of the support frame. The slider is disposed on the side of the connecting plate. The side of the slider has an opening for matching the slide rail and a locking gap. A rack is laid on the slide rail. A fixing member is provided on the side of the slider. One end of the fixing member passes through the opening. The end of the fixing member that passes through the opening has a hobbing tooth that meshes with the rack. The fastener is screwed from the side of the slider through the gap.

8. A visual inspection device for injection molded parts according to any one of claims 1, 2, or 5-7, characterized in that, It also includes a feeding component and a placement area, the placement area being arranged on the worktable, the feeding component being connected between the bottom imaging component and the placement area, and the placement area being used to place qualified products.

9. A visual inspection device for injection molded parts according to claim 8, characterized in that, The feeding assembly includes a robotic arm, a suction cup, and a material tray. The placement area includes a first placement area and a second placement area. The material tray is placed in the first placement area. The robotic arm is positioned on the worktable. The suction cup is located at the moving end of the robotic arm. There are several robotic arms. The several robotic arms drive the suction cups to reciprocate between the first placement area and the bottom imaging component, and between the first placement area and the second placement area.

10. A visual inspection device for injection molded parts according to claim 9, characterized in that, The placement area is provided with a second feeding belt and a lifting plate. The side of the workbench has an open opening that communicates with the placement area. The second feeding belt passes through the open opening and is positioned at the bottom of the placement area. The lifting plate can be raised and lowered back and forth within the placement area along the top and bottom of the placement area.

Images