Appearance detection device for sealing cover

Abstract

An appearance detection device for a sealing cover comprises a detection table, a CCED camera, a movable positioning mechanism and an appearance detection seat, a positioning block is arranged on a positioning plate of the movable positioning mechanism, the sealing cover is positioned through the positioning block, the CCED camera is arranged above the movable positioning mechanism, the upper surface of the sealing cover is detected through the sealing cover, and the appearance detection seat is arranged on the detection table. CCED cameras are arranged on the two sides and the lower portion of a support of the two appearance detection bases, detection of the side faces and the bottom face of the sealing cover is achieved through the CCED cameras on the two sides and the lower portion of the sealing cover, when one appearance detection base of the sealing cover is moved to the other appearance detection base, a glass slide of the support rotates by 90 degrees, the pair of side faces of the sealing cover is converted, and the sealing cover is sealed. And the CCED cameras below the two appearance detection seats have different focal length settings, so that the detection of two bottom surfaces with different depths of the sealing cover can be realized. According to the utility model, the detection efficiency of appearance detection of the sealing cover is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of production technology and equipment for sealing caps, and in particular to a device for inspecting the appearance of sealing caps. Background Technology

[0002] The sealing cap is produced by injection molding and LSR (liquid silicone rubber) molding. Before packaging, the sealing caps require manual visual inspection to check the injection molding and overmolding processes, rejecting defective products or those with burrs. However, current technology requires manual inspection of all six sides of the sealing cap, resulting in high intensity and slow efficiency. Therefore, manual inspection requires a large workforce and is inefficient. Furthermore, the high temperature of the sealing cap after injection molding poses a risk of burns to personnel during manual inspection. For these reasons, the visual inspection process of the sealing cap has become a bottleneck in the sealing cap production process. Summary of the Invention

[0003] Therefore, it is necessary to design an automatic and efficient inspection device for the appearance inspection of sealing caps to meet the requirements of automated production that links injection molding and overmolding of sealing caps, and to improve the inspection efficiency of manual appearance inspection.

[0004] To achieve the above objectives, this utility model provides the following: a sealing cap appearance inspection device, comprising an inspection platform, a CCED camera, a movable positioning mechanism sequentially arranged on the inspection platform, and two appearance inspection seats. The movable positioning mechanism includes a positioning plate with multiple sets of positioning blocks for positioning the sealing cap. A movable pressure plate is positioned above the positioning plate. After the sealing cap is positioned by the positioning blocks on three sides, it is pressed against the positioning blocks by the movable pressure plate to achieve positioning. A CCED camera is positioned above the movable positioning mechanism, directly opposite the positioning plate. The positioned sealing cap's upper surface is inspected by the CCED camera. The two appearance inspection seats... The appearance inspection stand includes a support, on the upper surface of which a glass slide for placing a sealing cover is rotatably mounted. CCED cameras are positioned on both sides and below the support. The sealing cover placed on the glass slide is inspected by the CCED cameras on both sides and below the appearance inspection stand, which detect one pair of sides and the bottom surface of the sealing cover. The glass slide rotates 90° at a time. When the sealing cover moves from one appearance inspection stand to the other, the glass slide rotates 90°, causing the sealing cover to face the pair of sides of the CCED cameras on both sides. The CCED cameras below the two appearance inspection stands have different focal lengths.

[0005] Furthermore, one side of the testing platform is provided with a moving mechanism for transferring the sealing cap between the movable positioning mechanism and the two appearance inspection seats. The moving mechanism includes a linear sliding module with a sliding plate on it. A first cylinder is mounted on the sliding plate, and a lifting plate is located at the telescopic rod end of the first cylinder. Multiple clamping cylinders are located at the bottom of the lifting plate. After the sealing cap positioned on the movable positioning mechanism completes inspection on its upper surface, it is clamped and moved by the clamping cylinders of the moving mechanism, enabling the sealing cap to move synchronously between the movable positioning mechanism and the two appearance inspection seats.

[0006] Furthermore, each set of positioning blocks includes a fixed positioning block and a pair of opposing and adjustable positioning blocks. The fixed positioning block and the pair of opposing positioning blocks form a preliminary positioning of the three sides of the sealing cover, thereby facilitating the positioning plate to receive the sealing cover taken out of the LSR (liquid silicone) molding machine by the six-axis robot. The sealing cover achieves preliminary positioning of the three sides through the positioning blocks.

[0007] Furthermore, the positioning plate has multiple pairs of adjustment slots for adjusting and fixing the positioning blocks. The positioning blocks, which are arranged opposite each other, are adjusted and positioned through the adjustment slots to ensure that the positioning plate can be fixed according to the sealing caps of different product specifications.

[0008] Furthermore, the positioning plate is equipped with a pair of opposing second cylinders. The telescopic rod ends of the second cylinders are connected to the movable pressure plate. The movable pressure plate has multiple pressing fingers extending between multiple sets of positioning blocks. One of the second cylinders can telescopically press the pressing fingers toward the positioning blocks to press the sealing cap tightly, while the other second cylinder can telescopically move the pressing fingers away from the positioning blocks to release the sealing cap. When the movable pressure plate is released, it can receive the sealing cap taken out of the LSR (liquid silicone) molding machine by a six-axis robot. The sealing cap is initially positioned on three sides by the positioning blocks. After being received, the sealing cap is pressed tightly by the pressing fingers, so that the sealing cap is directly attached to the positioning blocks, ensuring accurate positioning of the sealing cap during the appearance inspection of the upper surface.

[0009] Furthermore, the movable positioning mechanism includes a base plate connected to the positioning plate, a sliding block at the bottom of the base plate, and a slide rail on the detection table. The slide rail and the sliding block are slidably engaged, and the movable positioning mechanism achieves sliding through the sliding engagement between the sliding block and the slide rail.

[0010] Furthermore, a rodless cylinder is connected to the base plate for the movable positioning mechanism to slide on the slide rail. When the movable positioning mechanism slides, the rodless cylinder enables the movable positioning mechanism to slide and be positioned. Thus, the movable positioning mechanism slides under the push of the rodless cylinder, and the multiple sealing covers positioned on the positioning plate are sequentially stopped directly below the CCED camera to achieve detection of the upper surface of the sealing covers.

[0011] Furthermore, the appearance inspection seat has rollers mounted on the upper surface of its support, and the glass slide is disposed inside the rollers. A first fixed post is located at the bottom of the support, and a second fixed post is located at the bottom of the glass slide. A third cylinder is rotatably connected to the first fixed post, and the extension rod end of the third cylinder is rotatably connected to the second fixed post. By means of the third cylinder, the glass slide rotates 90° relative to the support. After two of the four sides of the sealing cover have undergone appearance inspection, the 90° rotation of the sealing cover by the glass slide causes the other two sides of the sealing cover to face the CCED cameras on both sides, thus ensuring that all four sides of the sealing cover can be inspected by the CCED cameras.

[0012] Furthermore, the testing platform is also equipped with a product positioning seat. After the sealing cap has been tested, the qualified sealing cap is moved synchronously onto the product positioning seat by the clamping cylinder of the moving mechanism. The qualified sealing cap on the product positioning seat is then moved to other processes by an external six-axis machine.

[0013] Furthermore, the testing table has a hopper between the product positioning seat and the appearance inspection seat. The hopper is used to receive defective sealing caps, which can be easily fed into the receiving frame below the table.

[0014] In this invention, the sealing cap can be initially positioned by the positioning block on the movable positioning mechanism. After the initial positioning, the sealing cap is further positioned by the movable pressure plate, so that the sealing cap can be well positioned on the movable positioning mechanism, thereby facilitating the appearance inspection of the upper surface of the sealed cap after positioning.

[0015] This invention utilizes two appearance inspection seats to perform appearance inspection on the four sides and two bottom surfaces at different depths of the sealing cap, thereby achieving all-round inspection of the sealing cap.

[0016] This invention utilizes multiple clamping cylinders on a moving mechanism to synchronously move the sealing cap between the movable positioning mechanism, the two appearance inspection seats, and the product positioning seat, thereby automating the entire inspection process of the sealing cap and greatly improving the inspection efficiency of the appearance inspection of the sealing cap. Attached Figure Description

[0017] Figure 1 This is a front view of the three-dimensional structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from the rear view.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below.

[0020] Figure 4 for Figure 1 A magnified view of part A in the diagram.

[0021] Figure 5 This is one of the schematic diagrams of the three-dimensional structure of the active positioning mechanism.

[0022] Figure 6 This is the second schematic diagram of the three-dimensional structure of the active positioning mechanism.

[0023] Figure 7 This is one of the schematic diagrams of the three-dimensional structure of the appearance inspection unit.

[0024] Figure 8 This is the second schematic diagram of the three-dimensional structure of the appearance inspection unit.

[0025] Figure 9 This is a schematic diagram showing the rotation of the glass slide controlled by the third cylinder.

[0026] The components are as follows: 1-Inspection table, 11-Tabletop, 12-Slide rail, 13-Rodless cylinder, 14-Feeding hopper, 15-Connecting plate, 16-Receiving frame, 2-Moving mechanism, 21-Linear sliding module, 22-Sliding plate, 23-First cylinder, 24-Lifting plate, 25-Clamping cylinder, 251-Gripper, 26-Induction plate, 3-Modular positioning mechanism, 31-Positioning plate, 311-Adjusting groove, 32-Positioning block, 33-Base plate, 34-Modular pressure plate, 341-Pressure finger, 35-Second cylinder, 36-Sliding block, 4-Sealing cover, 5-Appearance inspection seat, 51-Support, 511-First fixed column, 52-Rolling wheel, 53-Glass slide, 531-Second fixed column, 54-Third cylinder, 6-Sensor, 7-Product positioning seat, 8-CCED camera. Detailed Implementation

[0027] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0028] A visual inspection device for a sealed cap, referring to Figures 1-3The system includes a testing platform 1, a CCED camera 8, a movable positioning mechanism 3 sequentially arranged on the testing platform 1, and two appearance inspection seats 5. Above the movable positioning mechanism 3 is a CCED camera 8 directly facing it. The CCED camera 8 is connected to an external computer software graphics recognition system. The system determines the condition of the inspection surface of the sealing cover 4 by recognizing the image captured by the CCED camera 8 and the standard image of the sealing cover 4. The sealing cover 4 positioned by the movable positioning mechanism 3 is inspected via the CCED camera 8 above, thus achieving the inspection of the upper surface of the sealing cover 4. Figure 7 Two appearance inspection seats 5 include a support 51. A glass slide 53 for placing a sealing cap 4 is rotatably mounted on the upper surface of the support 51. CCED cameras 8 are located on both sides and below the support 51. The glass slide 53 is a transparent circular sheet with flat upper and lower surfaces, allowing the CCED camera 8 to capture images of the bottom of the sealing cap 4 through the glass slide 53. The sealing cap 4, placed on the glass slide 53, is inspected by the CCED cameras 8 on both sides and below the appearance inspection seats 5, which detect one pair of sides and the bottom of the sealing cap 4. The glass slide 53 rotates at various angles... When the sealing cover 4 moves from one of the appearance inspection seats 5 to the other, the glass slide 53 rotates 90°, causing the sealing cover 4 to face a pair of sides of the CCED cameras 8 on both sides. By rotating the glass slide 53, the two appearance inspection seats 5 can effectively inspect the four sides of the sealing cover 4. The CCED cameras 8 below the two appearance inspection seats 5 have different focal lengths. Therefore, the sealing cover 4 can be inspected at different depths of the bottom surface through the CCED cameras 8 with different focal lengths.

[0029] Reference Figure 8 and Figure 9To achieve the rotation effect of the glass slide 53 of the appearance inspection seat 5, the appearance inspection seat 5 has a rolling wheel 52 installed on the upper surface of its support 51. The glass slide 53 is located inside the rolling wheel 52. The rolling wheel 52 is used to realize the rotation of the glass slide 53 relative to the support 51. The support 51 has a first fixed column 511 at the bottom and the glass slide 53 has a second fixed column 531 at the bottom. A third cylinder 54 is rotatably connected to the first fixed column 511. The telescopic rod end of the third cylinder 54 is rotatably connected to the second fixed column 531. In specific implementation, the positional relationship between the first fixed column 511 and the second fixed column 531 is controlled so that the swing angle θ of the rotatably connected third cylinder 54 is 45°. When the third cylinder 54 is started, the glass slide 53 rotates 90° relative to the support 51. Using the above method, after two of the four sides of the sealing cover 4 have undergone visual inspection, the sealing cover 4 is rotated 90° by the glass slide 53 so that the other two sides of the sealing cover 4 face the CCED cameras 8 on both sides, thereby ensuring that all four sides of the sealing cover 4 can be detected by the CCED cameras 8.

[0030] Activity positioning agency 3, refer to Figure 5 , Figure 6 The system includes a positioning plate 31, which has multiple sets of positioning blocks 32 for positioning the sealing cap 4. Each set of positioning blocks 32 includes a fixed positioning block 32 and a pair of opposing and adjustable positioning blocks 32. The fixed positioning block 32 and the pair of opposing positioning blocks 32 form a preliminary positioning of the sealing cap 4 on three sides, so that the positioning plate 31 can receive the sealing cap 4 taken out of the LSR (liquid silicone) molding machine by the six-axis robot. The sealing cap 4 is initially positioned on three sides by the positioning blocks 32. The positioning plate 31 has multiple pairs of adjustment grooves 311 for adjusting and fixing the positioning blocks 32. The opposing positioning blocks 32 are adjusted and positioned by the adjustment grooves 311, so that the positioning plate 31 can fix the sealing cap 4 according to different product specifications.

[0031] A movable pressure plate 34 is provided above the positioning plate 31. A pair of opposing second cylinders 35 are provided on the positioning plate 31. The telescopic rod end of the second cylinder 35 is connected to the movable pressure plate 34. The movable pressure plate 34 is provided with multiple pressure fingers 341 extending between multiple sets of positioning blocks 32. One of the second cylinders 35 can telescopically move the pressure fingers 341 toward the positioning blocks 32 to press the sealing cover 4 tightly. The other second cylinder 35 can telescopically move the pressure fingers 341 away from the positioning blocks 32 to release the sealing cover 4. When the movable pressure plate 34 is released, the sealing cover 4 can be received by the six-axis robot arm from the LSR (liquid silicone) molding machine. The sealing cover 4 is initially positioned on three sides by the positioning blocks 32. After being received, the sealing cover 4 is pressed by the pressure fingers 341, so that the sealing cover 4 is directly attached to the positioning blocks 32, ensuring the accurate positioning of the sealing cover 4 during the appearance inspection of the upper surface.

[0032] The movable positioning mechanism 3 includes a base plate 33 connected to the positioning plate 31, a sliding block 36 at the bottom of the base plate 33, and a detection table 1 with a slide rail 12 on its table surface 11. The slide rail 12 and the sliding block 36 slide together. The movable positioning mechanism 3 slides through the sliding engagement of the sliding block 36 and the slide rail 12. A rodless cylinder 13 is connected to the base plate 33 for the movable positioning mechanism 3 to slide on the slide rail 12. A connecting plate 15 connects the rodless cylinder 13 and the base plate 33. When the movable positioning mechanism 3 slides, it is positioned by sliding through the rodless cylinder 13. When sliding, the movable positioning mechanism 3 slides under the push of the rodless cylinder 13, and causes multiple sealing covers 4 positioned on the positioning plate 31 to stop in sequence directly below the CCED camera 8 to detect the upper surface of the sealing cover 4.

[0033] In this embodiment, a moving mechanism 2 is provided on one side of the table surface 11 of the inspection table 1 for transferring the sealing cover 4 between the movable positioning mechanism 3 and the two appearance inspection seats 5. The moving mechanism 2 includes a linear sliding module 21, a sliding plate 22 on the linear sliding module 21, a first cylinder 23 on the sliding plate 22, a lifting plate 24 at the telescopic rod end of the first cylinder 23, and a plurality of clamping cylinders 25 at the bottom of the lifting plate 24. Each clamping cylinder 25 is provided with a gripper 251. The number of clamping cylinders 25 is three, corresponding to the movable positioning mechanism 3 and the two appearance inspection seats 5. The spacing between the clamping cylinders 25 is consistent with the spacing between the two appearance inspection seats 5. After the sealing cover 4, positioned on the movable positioning mechanism 3, completes the inspection on the upper surface, the movable positioning mechanism 3 slides to the corresponding position via the rodless cylinder 13, so that the distance between the movable positioning mechanism 3 and the appearance inspection seat 5 is consistent with the distance between the two appearance inspection seats 5. Through the clamping and moving of the clamping cylinder 25 of the moving mechanism 2, the sealing cover 4 moves synchronously between the movable positioning mechanism 3 and the two appearance inspection seats 5.

[0034] In this embodiment, the inspection table 1 is also equipped with a product positioning seat 7. The distance between the product positioning seat 7 and the appearance inspection seat 5 is also consistent with the interval distance between the two appearance inspection seats 5, so that after the sealing cover 4 is inspected, the qualified sealing cover 4 is synchronously moved onto the product positioning seat 7 by the clamping cylinder 25 of the moving mechanism 2. A feeding hopper 14 is provided between the product positioning seat 7 and the appearance inspection seat 5. The qualified sealing cover 4 on the product positioning seat 7 is moved to other processes by an external six-axis machine. The feeding hopper 14 is used to receive the defective sealing cover 4. The defective sealing cover 4 can be easily fed into the receiving frame 16 below the table 11 through the feeding hopper 14. Figure 4Sensors 6 are provided at the edges of the product positioning seat 7 and the hopper 14. Correspondingly, a sensor plate 26 is provided at the bottom of the lifting plate 24 of the moving mechanism 2. When the moving mechanism 2 moves, the sensor plate 26 senses the corresponding sensor 6 to move the lifting plate 24 to the corresponding position so as to place the qualified sealing cap 4 in the product positioning seat 7 or place the unqualified sealing cap 4 in the hopper 14, thereby realizing the collection and processing of the receiving frame 16.

[0035] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A device for inspecting the appearance of a sealed cap, characterized in that: The system includes a testing platform, a CCED camera, a movable positioning mechanism sequentially arranged on the testing platform, two appearance inspection seats, and the movable positioning mechanism, which includes a positioning plate with multiple sets of positioning blocks for positioning the sealing cap. A movable pressure plate is located above the positioning plate. After the sealing cap is positioned by the positioning blocks on three sides, it is pressed against the positioning blocks by the movable pressure plate to achieve positioning. A CCED camera is positioned above the movable positioning mechanism, directly opposite the positioning plate, and the upper surface of the positioned sealing cap is inspected by the CCED camera. The two appearance inspection seats include supports, with the upper surface of the supports... A glass slide is rotatably mounted for placing a sealing cap. CCED cameras are located on both sides and below the support. The sealing cap placed on the glass slide is inspected by the CCED cameras on both sides and below the appearance inspection seat, which detect one pair of sides and the bottom of the sealing cap. The glass slide rotates 90° each time. When the sealing cap moves from one appearance inspection seat to the other, the glass slide rotates 90° so that the sealing cap faces the pair of sides of the CCED cameras on both sides. The CCED cameras below the two appearance inspection seats have different focal lengths.

2. The appearance inspection device for a sealing cap according to claim 1, characterized in that: The testing platform has a moving mechanism on one side for transferring the sealing cover between the movable positioning mechanism and the two appearance testing seats. The moving mechanism includes a linear sliding module with a sliding plate on it. A first cylinder is provided on the sliding plate, and a lifting plate is provided at the telescopic rod end of the first cylinder. Multiple clamping cylinders are provided at the bottom of the lifting plate.

3. The appearance inspection device for a sealing cap according to claim 1, characterized in that: Each set of positioning blocks includes a fixed positioning block and a pair of oppositely arranged and adjustable positioning blocks. The positioning plate has multiple pairs of adjustment slots for adjusting and fixing the positioning blocks.

4. The appearance inspection device for a sealing cap according to claim 1, characterized in that: The positioning plate is provided with a pair of opposing second cylinders. The telescopic rod end of the second cylinder is connected to the movable pressure plate. The movable pressure plate is provided with a plurality of pressing fingers extending between multiple sets of positioning blocks. One of the second cylinders can telescopically press the pressing fingers toward the positioning block to press the sealing cover tightly, and the other second cylinder can telescopically move the pressing fingers away from the positioning block to loosen the sealing cover.

5. The appearance inspection device for a sealing cap according to claim 1, characterized in that: The active positioning mechanism includes a base plate connected to the positioning plate, a sliding block at the bottom of the base plate, and a detection table with a slide rail on its surface, the slide rail and the sliding block being slidably engaged.

6. The appearance inspection device for a sealing cap according to claim 5, characterized in that: The base plate is connected to a rodless cylinder that allows the movable positioning mechanism to slide on a slide rail.

7. The appearance inspection device for a sealing cap according to claim 1, characterized in that: The appearance inspection seat has a roller mounted on the upper surface of its support, and the glass slide is placed inside the roller. The bottom of the support has a first fixed column, and the bottom of the glass slide has a second fixed column. A third cylinder is rotatably connected to the first fixed column, and the telescopic rod end of the third cylinder is rotatably connected to the second fixed column. By means of the third cylinder, the glass slide rotates 90° relative to the support.

8. The appearance inspection device for a sealing cap according to claim 1, characterized in that: The testing platform is also equipped with a product positioning seat.

9. The appearance inspection device for a sealing cap according to claim 8, characterized in that: The testing platform has a hopper between the product positioning seat and the appearance inspection seat.

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