Injection molding part surface defect detection device

Abstract

The utility model discloses an injection molding part surface defect detection device, and belongs to the technical field of injection molding part detection. Comprising a detection table, linear guide rails are symmetrically arranged at the top of the detection table, and an industrial camera A is arranged on one side of the top of the detection table and used for detecting bottom defects of injection molding parts; the feeding assembly is driven by external force to slide along the linear guide rail. The industrial camera B is fixedly arranged on the inner side of the feeding assembly and used for detecting top defects of the injection molding part; the problem that in the prior art, an injection molding part is driven to rotate through a carrying disc, an industrial camera can only detect the side portion of the injection molding part and cannot detect the top and the bottom of the injection molding part, and consequently detection of the surface of the injection molding part is not comprehensive is effectively solved, and then the effect of comprehensive detection of the surface defects of the injection molding part is achieved.

Description

Technical Field

[0001] This application relates to the field of injection molded part inspection technology, and more specifically, to a device for detecting surface defects in injection molded parts. Background Technology

[0002] With the development of artificial intelligence and machine learning technologies, the inspection of surface defects in injection molded parts is gradually shifting from manual inspection to automated systems. This not only improves inspection efficiency and accuracy but also reduces production costs.

[0003] In related technologies, for example, patent CN220399302U provides a device for detecting surface defects in injection molded parts. This device, through components such as a feeding plate and a rotating mechanism, allows the processed injection molded parts to be moved onto the feeding plate and transported to a tray. An industrial camera then takes pictures of the parts for inspection, eliminating the need for manual handling. The rotating mechanism allows the parts on the tray to rotate. When it is necessary to inspect various angles of the injection molded parts, the motor is started, and the kinetic energy of the motor is transferred to the tray through the rotating mechanism, causing the tray to rotate. The injection molded parts on the tray also rotate, facilitating the inspection of various angles of the injection molded parts and thus improving inspection efficiency.

[0004] While the existing technical solutions described above have solved the problems mentioned in the background, the industrial camera can only inspect the side of the injection molded part by rotating it with a carrier plate, and cannot inspect the top and bottom of the injection molded part, resulting in insufficient inspection of the surface of the injection molded part.

[0005] In view of this, we propose a device for detecting surface defects in injection molded parts. Utility Model Content

[0006] The purpose of this application is to provide a surface defect detection device for injection molded parts, which can effectively solve the problem in the prior art that, when the injection molded part is rotated by a carrier plate, the industrial camera can only detect the side of the injection molded part and cannot detect the top and bottom of the injection molded part, resulting in insufficient detection of the surface of the injection molded part, and achieve a comprehensive detection effect for surface defects of injection molded parts.

[0007] This application provides a device for detecting surface defects in injection molded parts, including:

[0008] The inspection table has linear guide rails symmetrically arranged on its top, and an industrial camera A is installed on one side of the top of the inspection table for detecting defects on the bottom of the injection molded part.

[0009] The feeding assembly slides along a linear guide rail under external force.

[0010] Industrial camera B is fixedly installed inside the feeding assembly and is used to detect defects on the top of the injection molded part;

[0011] A rotating disk is located inside the detection platform and rotates intermittently driven by an external force. A platform is arranged in a circular array inside the rotating disk, and the platform rotates slowly driven by an external force.

[0012] Industrial camera C is fixedly mounted on the outside of the inspection station and is used to inspect peripheral defects of injection molded parts.

[0013] As an optional solution to the technical solution of this application, the feeding assembly includes two connecting plates A. The two connecting plates A are fixedly disposed on the outer side of the industrial camera B with their sides close to each other. An electric push rod A is fixedly disposed on the inner side of each of the two connecting plates A. A sliding seat is fixedly disposed at the output end of the electric push rod A. The sliding seat is slidably disposed on the outer side of the vertical plate. An electric slider is fixedly disposed at the bottom of the vertical plate. The vertical plate is fixedly disposed at the bottom of the connecting plate A. The electric slider is slidably engaged with the linear guide rail.

[0014] As an optional solution to the technical solution of this application, a sliding column A is horizontally slidably arranged on the inner side of the sliding seat, and an electric push rod B is fixedly arranged on the side of the two sliding seats that are close to each other. A connecting plate B is fixedly arranged at the output end of the electric push rod B. The connecting plate B is fixedly arranged with one end of the sliding column A. A pressure sensor is arranged on the side of the connecting plate B away from the sliding column A. A clamping plate is arranged on the outside of the pressure sensor. A rubber column is arranged on the outside of the clamping plate.

[0015] As an optional solution to the technical solution of this application, the top of the testing platform is provided with a stepped opening A, and a rotating disk is rotatably provided on the inner side of the stepped opening A via a bearing A. A support plate is fixedly provided at the bottom of the testing platform, and a driving component A is provided at the bottom of the testing platform via the support plate for driving the rotating disk to rotate.

[0016] As an optional solution to the technical solution of this application, the driving component A includes a driving motor A, which is fixedly mounted on the bottom of the testing table via a support plate. A gear is fixedly mounted on the output end of the driving motor A, and a gear ring is meshed on the outer side of the gear. The gear ring is fixedly mounted on the outer side of the rotating disk.

[0017] As an optional solution to the technical solution of this application, the top of the rotating disk has a stepped opening B corresponding to the platform. A magnet is fixedly installed on the inner side of the stepped opening B, and a rotating column is fixedly installed at the bottom of the platform. The inner side of the stepped opening B is rotatably connected to the rotating column through a bearing B. The rotating column, when moved to the detection position of the industrial camera C, is driven to rotate slowly by the driving component B.

[0018] As an optional solution to the technical solution of this application, the drive assembly B includes a drive motor B, which is fixedly mounted on the bottom of the detection table by a support plate. A drive shaft is provided on the top of the drive motor B, and a sliding groove is provided on the outer side of the drive shaft. A sliding sleeve is slidably provided on the outer side of the drive shaft through a perforated hole. Electric push rods D are symmetrically arranged on the top of the drive motor B. A support ring is fixedly provided at the output end of the electric push rod D, and a sliding sleeve is rotatably provided on the inner side of the support ring through a bearing C.

[0019] The bottom of the rotating column is provided with a square opening, and the top of the sliding sleeve is fixedly provided with a square rod that cooperates with the square opening.

[0020] As an optional solution to the technical solution of this application, a sliding column B is fixedly provided on the outer side of the industrial camera C, the sliding column B is slidably provided on the inner side of the mounting plate, the mounting plate is fixedly provided on the outer side of the detection table, and an electric push rod C is fixedly provided on the inner side of the mounting plate, the output end of the electric push rod C is fixedly provided with the outer side of the industrial camera C.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] (1) This application uses a feeding assembly to move the injection molded part, so that the top and bottom of the injection molded part can be inspected by industrial camera B and industrial camera A. The injection molded part is transported by a turntable, and the injection molded part is rotated by the stage, so that industrial camera C can inspect the side of the injection molded part. Therefore, it effectively solves the problem in the prior art that when the injection molded part is rotated by the stage, the industrial camera can only inspect the side of the injection molded part and cannot inspect the top and bottom of the injection molded part, resulting in insufficient inspection of the surface of the injection molded part. Thus, it achieves the effect of comprehensive inspection of surface defects of the injection molded part.

[0023] (2) This application provides a magnet inside the stepped opening B, which attracts the bottom of the platform to the platform so that the platform will not rotate without external force, thus making it easy for the square rod to be inserted into the square opening and to drive the rotating column and the platform connected to it to rotate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the injection molded part surface defect detection device disclosed in a preferred embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the industrial camera C in the injection molded part surface defect detection device disclosed in a preferred embodiment of this application;

[0026] Figure 3This is a schematic diagram of the assembly of drive component A with rotating disk and drive component B in a preferred embodiment of the injection molded part surface defect detection device disclosed in this application.

[0027] Figure 4 This is an exploded structural diagram of the rotating disk and drive assembly B in the injection molded part surface defect detection device disclosed in a preferred embodiment of this application.

[0028] Figure 5 This is an exploded structural diagram of the rotating disk in the injection molded part surface defect detection device disclosed in a preferred embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the inspection station in the injection molded part surface defect inspection device disclosed in a preferred embodiment of this application;

[0030] The labels in the diagram are as follows: 1. Inspection table; 11. Linear guide rail; 12. Industrial camera A; 13. Stepped opening A; 14. Bearing A; 15. Support plate; 16. Control box;

[0031] 2. Feeding assembly; 21. Connecting plate A; 22. Electric push rod A; 23. Sliding seat; 231. Sliding column A; 232. Electric push rod B; 24. Vertical plate; 25. Electric slider; 26. Connecting plate B; 261. Pressure sensor; 27. Clamping plate; 271. Rubber column;

[0032] 3. Industrial camera B;

[0033] 4. Rotating disk; 401. Stepped opening B; 402. Magnet; 403. Bearing B; 41. Stage; 411. Rotating column; 4111. Square opening;

[0034] 5. Industrial camera C; 51. Sliding column B; 52. Mounting plate; 53. Electric linear actuator C;

[0035] 6. Drive component A; 61. Drive motor A; 62. Gear; 63. Gear ring;

[0036] 7. Drive assembly B; 71. Drive motor B; 711. Drive shaft; 72. Sliding sleeve; 721. Hole; 722. Square rod; 73. Electric push rod D; 731. Support ring; 732. Bearing C. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] Reference Figure 1 and Figure 3This application discloses a surface defect detection device for injection molded parts, including a detection platform 1. Linear guide rails 11 are symmetrically arranged on the top of the detection platform 1. An industrial camera A12 is arranged on one side of the top of the detection platform 1 for detecting bottom defects of the injection molded parts. A feeding assembly 2 is driven by an external force to slide along the linear guide rails 11. An industrial camera B3 is fixedly arranged on the inner side of the feeding assembly 2 for detecting top defects of the injection molded parts. A rotating disk 4 is arranged on the inner side of the detection platform 1. The rotating disk 4 is driven by an external force to rotate intermittently. A platform 41 is arranged in a circular array on the inner side of the rotating disk 4. The platform 41 is driven by an external force to rotate slowly. An industrial camera C5 is fixedly arranged on the outer side of the detection platform 1 for detecting defects on the periphery of the injection molded parts. A control box 16 is arranged at the bottom of the detection platform 1.

[0039] When inspecting the surface of the injection molded part, the loading assembly 2 is controlled by the control box 16 to load the injection molded part from the loading platform, causing it to move upwards. This allows the industrial camera B3 to inspect the top of the injection molded part for defects. Subsequently, the loading assembly 2 lowers the injection molded part and moves it to the top of the industrial camera A12, allowing the industrial camera A12 to inspect the bottom of the injection molded part for defects. The loading assembly 2 then moves the injection molded part to the top of the platform 41 near the side of the industrial camera A12, placing the injection molded part on top of the platform 41. External force drives the rotating disk 4 to rotate, causing the injection molded part to rotate to the side near the industrial camera C5. The rotating disk 4 stops rotating, causing the platform 41 to rotate and rotate the injection molded part, allowing the industrial camera C5 to inspect the periphery of the injection molded part for defects. Then, the rotating disk 4 continues to rotate the injection molded part to the other side of the industrial camera C5, completing the comprehensive defect inspection of the injection molded part's surface.

[0040] Reference Figure 1 and Figure 6 The feeding assembly 2 includes two connecting plates A21. The sides of the two connecting plates A21 that are close to each other are fixedly mounted to the outer side of the industrial camera B3. Electric push rods A22 are fixedly mounted on the inner sides of both connecting plates A21. A sliding seat 23 is fixedly mounted at the output end of each electric push rod A22. The sliding seat 23 is slidably mounted on the outer side of the vertical plate 24. An electric slider 25 is fixedly mounted at the bottom of the vertical plate 24. The vertical plate 24 is fixedly mounted at the bottom of the connecting plate A21. The electric slider 25 slides in conjunction with the linear guide rail 11. The sliding seat 23 has a sliding column A231 that slides horizontally on its inner side. Both sliding seats 23 have an electric push rod B232 fixedly installed on their respective sides. The output end of the electric push rod B232 is fixedly installed with a connecting plate B26. The connecting plate B26 is fixedly installed with one end of the sliding column A231. The side of the connecting plate B26 away from the sliding column A231 is provided with a pressure sensor 261. The outside of the pressure sensor 261 is provided with a clamping plate 27. The outside of the clamping plate 27 is provided with a rubber column 271.

[0041] The electric slider 25 slides on the linear guide rail 11, thereby driving the feeding assembly 2 to move on the top of the inspection table 1, thereby driving the injection molded part to move. The linear guide rail 11 and the electric slider 25 are existing technology structures, model HGR15-R1000-H.

[0042] Two electric push rods B232 drive two connecting plates B26 to move closer together, thereby moving pressure sensor 261 and clamping plate 27. The injection molded part is clamped by rubber pillars 271 on both sides. The electric push rods B232 drive two sliding seats 23 to move away from each other, which can release the clamping of the injection molded part. The pressure sensor 261 can detect the clamping pressure of clamping plate 27 to prevent excessive pressure from damaging the injection molded part.

[0043] The electric push rod A22 drives the sliding seat 23 to slide on the outside of the vertical plate 24, thereby driving the electric push rod B232, the connecting plate B26 and the clamping plate 27 connected to the sliding seat 23 to rise and fall, thereby driving the injection molded part to rise and fall.

[0044] Reference Figure 2 and Figure 3 The top of the testing platform 1 is provided with a stepped opening A13. A rotating disk 4 is rotatably mounted on the inner side of the stepped opening A13 via a bearing A14. A support plate 15 is fixedly mounted on the bottom of the testing platform 1. A drive assembly A6 is mounted on the bottom of the testing platform 1 via the support plate 15 to drive the rotating disk 4 to rotate. The drive assembly A6 includes a drive motor A61. The drive motor A61 is fixedly mounted on the bottom of the testing platform 1 via the support plate 15. A gear 62 is fixedly mounted on the output end of the drive motor A61. A gear ring 63 is meshed on the outer side of the gear 62. The gear ring 63 is fixedly mounted on the outer side of the rotating disk 4.

[0045] The drive motor A61 drives the gear 62 to rotate, which in turn drives the gear ring 63 to rotate, thereby driving the rotating disk 4 to rotate. The rotating disk 4 rotates inside the stepped opening A13 via the bearing A14, which facilitates the movement of the injection molded part on the top of the rotating disk 4.

[0046] Reference Figure 2 , Figure 4 and Figure 5The top of the rotating disk 4 has a stepped opening B401 corresponding to the platform 41. A magnet 402 is fixedly installed on the inner side of the stepped opening B401. A rotating column 411 is fixedly installed at the bottom of the platform 41. The inner side of the stepped opening B401 is rotatably connected to the rotating column 411 via a bearing B403. The rotating column 411, when moved to the detection position of the industrial camera C5, is slowly rotated by the drive assembly B7. The drive assembly B7 includes a drive motor B71, which is fixedly installed at the bottom of the detection platform 1 via a support plate 15. The top of the motor B71 is provided with a drive shaft 711. A groove is provided on the outer side of the drive shaft 711. A sliding sleeve 72 is slidably provided on the outer side of the drive shaft 711 through a flower hole 721. Electric push rods D73 are symmetrically provided on the top of the drive motor B71. A support ring 731 is fixedly provided at the output end of the electric push rod D73. The sliding sleeve 72 is rotatably provided on the inner side of the support ring 731 through a bearing C732. A square opening 4111 is provided at the bottom of the rotating column 411. A square rod 722 that cooperates with the square opening 4111 is fixedly provided on the top of the sliding sleeve 72.

[0047] When the rotating disk 4 drives the stage 41, on which the injection molded part is placed, to rotate to the side of the industrial camera C5, the electric push rod D73 drives the support ring 731 to rise, so that the flower hole 721 and the sliding groove on the drive shaft 711 cooperate with each other, so that the sliding sleeve 72 slides on the outside of the drive shaft 711, thereby making the square rod 722 cooperate with the square opening 4111. The drive motor B71 drives the drive shaft 711 to rotate one revolution, thereby driving the sliding sleeve 72 to rotate inside the bearing C732, driving the rotating column 411 to rotate, thereby driving the stage 41 to rotate, so that the stage 41 drives the injection molded part to rotate one revolution, which makes it convenient for the industrial camera C5 to inspect the periphery of the injection molded part.

[0048] When the rotating disk 4 drives the platform 41 to rotate, the magnet 402 attracts the platform 41 to prevent it from shifting. When the square rod 722 drives the platform 41 to rotate, the force of rotation is greater than the attraction force of the magnet 402 on the platform 41, ensuring that the platform 41 can rotate.

[0049] Reference Figure 1 , Figure 2 and Figure 6 An industrial camera C5 has a sliding column B51 fixedly mounted on its outer side. The sliding column B51 is slidably mounted on the inner side of the mounting plate 52. The mounting plate 52 is fixedly mounted on the outer side of the inspection table 1. An electric push rod C53 is fixedly mounted on the inner side of the mounting plate 52. The output end of the electric push rod C53 is fixedly mounted to the outer side of the industrial camera C5.

[0050] When the industrial camera C5 inspects the periphery of the injection molded part, the industrial camera C5 can be moved by the electric push rod C53 to adjust the distance between the industrial camera C5 and the injection molded part.

[0051] In summary, the injection molding part surface defect detection device disclosed in this application, when in use, controls the operation of the loading assembly 2 via the control box 16. The electric slider 25 slides on the linear guide rail 11, thereby moving the loading assembly 2 to the top of the detection table 1. When the loading assembly 2 reaches the top of the loading table, two electric push rods B232 drive two connecting plates B26 closer together, thereby moving the pressure sensor 261 and clamping plate 27. The injection molding part is clamped by rubber pillars 271 on both sides. The electric push rod A22 drives the sliding seat 23 to slide outside the vertical plate 24, thereby causing the electric push rod B232, connecting plate B26, and clamping plate 27 connected to the sliding seat 23 to rise, thus moving the injection molding part upwards. This allows the industrial camera B3 to detect defects on the top of the injection molding part. Subsequently, the loading assembly 2 moves the injection molding part downwards and moves to the top of the industrial camera A12, allowing the industrial camera A12 to detect defects on the bottom of the injection molding part. The loading assembly 2 moves the injection molding part closer to... On the top of the stage 41 on one side of the industrial camera A12, two sliding seats 23 are driven away from each other by an electric push rod B232, which releases the clamping of the injection molded part and allows it to be placed on the top of the stage 41. The drive motor A61 drives the gear 62 to rotate, which in turn drives the gear ring 63 to rotate, thereby driving the rotating disk 4 to rotate, so that the injection molded part rotates to the side closer to the industrial camera C5. The rotating disk 4 stops rotating, and the electric push rod D73 drives the support ring 731 to rise, so that the flower hole 721 is aligned with the drive. The sliding grooves on shaft 711 cooperate with each other, allowing the sliding sleeve 72 to slide on the outside of drive shaft 711. This allows the square rod 722 to cooperate with the square opening 4111. Drive motor B71 drives drive shaft 711 to rotate one revolution, which in turn drives sliding sleeve 72 to rotate inside bearing C732, causing rotating column 411 to rotate, which in turn drives stage 41 to rotate. Stage 41 then drives injection molded part to rotate one revolution, facilitating industrial camera C5 to inspect the periphery of injection molded part and complete comprehensive defect inspection of injection molded part surface.

Claims

1. A device for detecting surface defects in injection molded parts, characterized in that, Include: Inspection table (1), the top of the inspection table (1) is symmetrically provided with linear guide rails (11), and an industrial camera A (12) is provided on one side of the top of the inspection table (1) for detecting bottom defects of injection molded parts; The feeding assembly (2) slides along the linear guide rail (11) driven by external force; Industrial camera B (3) is fixedly installed on the inside of the feeding assembly (2) and is used to detect defects on the top of the injection molded part; A rotating disk (4) is set inside the detection table (1) and rotates intermittently driven by an external force. A platform (41) is arranged in a ring array inside the rotating disk (4). The platform (41) rotates slowly driven by an external force. An industrial camera C(5) is fixedly installed on the outside of the inspection table (1) and is used to detect peripheral defects of injection molded parts.

2. The injection molded part surface defect detection device according to claim 1, characterized in that: The feeding assembly (2) includes two connecting plates A (21). The two connecting plates A (21) are fixedly disposed on the side close to each other with the outer side of the industrial camera B (3). Electric push rods A (22) are fixedly disposed on the inner side of the two connecting plates A (21). A sliding seat (23) is fixedly disposed at the output end of the electric push rod A (22). The sliding seat (23) is slidably disposed on the outer side of the vertical plate (24). An electric slider (25) is fixedly disposed at the bottom of the vertical plate (24). The vertical plate (24) is fixedly disposed at the bottom of the connecting plate A (21). The electric slider (25) is slidably engaged with the linear guide rail (11).

3. The injection molded part surface defect detection device according to claim 2, characterized in that: A sliding column A (231) is horizontally slidably arranged on the inner side of the sliding seat (23). An electric push rod B (232) is fixedly arranged on the side of the two sliding seats (23) that are close to each other. A connecting plate B (26) is fixedly arranged at the output end of the electric push rod B (232). The connecting plate B (26) is fixedly arranged at one end of the sliding column A (231). A pressure sensor (261) is arranged on the side of the connecting plate B (26) away from the sliding column A (231). A clamping plate (27) is arranged on the outside of the pressure sensor (261). A rubber column (271) is arranged on the outside of the clamping plate (27).

4. The injection molded part surface defect detection device according to claim 1, characterized in that: The top of the testing platform (1) is provided with a stepped opening A (13), and a rotating disk (4) is rotatably provided on the inner side of the stepped opening A (13) via a bearing A (14). A support plate (15) is fixedly provided at the bottom of the testing platform (1), and a driving component A (6) is provided at the bottom of the testing platform (1) via the support plate (15) to drive the rotating disk (4) to rotate.

5. The injection molded part surface defect detection device according to claim 4, characterized in that: The drive assembly A (6) includes a drive motor A (61), which is fixedly mounted on the bottom of the testing table (1) via a support plate (15). A gear (62) is fixedly mounted on the output end of the drive motor A (61), and a gear ring (63) is meshed on the outer side of the gear (62). The gear ring (63) is fixedly mounted on the outer side of the rotating disk (4).

6. The injection molded part surface defect detection device according to claim 1, characterized in that: The top of the rotating disk (4) has a stepped opening B (401) corresponding to the platform (41). A magnet (402) is fixedly installed on the inner side of the stepped opening B (401). A rotating column (411) is fixedly installed at the bottom of the platform (41). The inner side of the stepped opening B (401) is rotatably connected to the rotating column (411) through a bearing B (403). The rotating column (411) that moves to the detection position of the industrial camera C (5) is driven to rotate slowly by the driving component B (7).

7. The injection molded part surface defect detection device according to claim 6, characterized in that: The drive assembly B (7) includes a drive motor B (71), which is fixedly mounted on the bottom of the detection table (1) via a support plate (15). A drive shaft (711) is provided on the top of the drive motor B (71), and a sliding groove is provided on the outer side of the drive shaft (711). A sliding sleeve (72) is slidably mounted on the outer side of the drive shaft (711) through a flower hole (721). An electric push rod D (73) is symmetrically mounted on the top of the drive motor B (71), and a support ring (731) is fixedly mounted on the output end of the electric push rod D (73). A sliding sleeve (72) is rotatably mounted on the inner side of the support ring (731) through a bearing C (732). The bottom of the rotating column (411) is provided with a square opening (4111), and the top of the sliding sleeve (72) is fixedly provided with a square rod (722) that cooperates with the square opening (4111).

8. The injection molded part surface defect detection device according to claim 1, characterized in that: A sliding column B (51) is fixedly installed on the outside of the industrial camera C (5). The sliding column B (51) is slidably installed on the inside of the mounting plate (52). The mounting plate (52) is fixedly installed on the outside of the detection table (1). An electric push rod C (53) is fixedly installed on the inside of the mounting plate (52). The output end of the electric push rod C (53) is fixedly installed on the outside of the industrial camera C (5).

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