Injection molding part detection device for injection molding quality management

Abstract

The application discloses an injection molding part detection device for injection molding quality management, and relates to the field of injection molding part scratch resistance detection, which comprises a base box, an n-shaped frame arranged on the top of the base box, a sample bearing moving device arranged in the base box and extending to the upper part of the base box, a shooting device and an environmental load local application device arranged in sequence at the bottom of the n-shaped frame, and a scratch application device arranged at the end of the environmental load local application device close to the shooting device. The injection molding part detection device can quickly apply environmental load to the injection molding part and immediately apply scratches, and can realize automatic detection of scratches.

Description

Technical Field

[0001] This invention relates to the technical field of scratch resistance testing of injection molded parts, specifically to an injection molded part testing device for injection molding quality control. Background Technology

[0002] In the injection molding industry, surface scratch resistance is one of the key indicators for evaluating the quality and service life of injection molded parts, especially in applications such as automotive interiors and electronic appliance housings, where products often need to be used for extended periods in complex environments with high temperatures and humidity. Therefore, accurately assessing the scratch resistance of injection molded parts under simulated real-world conditions during product development and quality control is of significant engineering importance for optimizing material formulations, guiding mold design, establishing reasonable process parameters, and ensuring batch-to-batch quality consistency.

[0003] Currently, the industry's assessment of the scratch resistance of injection molded parts mainly relies on manual or semi-automated offline sampling inspection methods. A common practice is to first pre-treat the samples under temperature and humidity for an extended period in an environmental test chamber, then transfer them to a separate scratch tester to apply mechanical loads, and finally assess the degree of damage visually or with the aid of general optical instruments. This "split-type" testing process has significant drawbacks: First, the multiple transfers of samples between the environmental loading and scratch testing equipment lead to the loss of positioning references, making it difficult to ensure precise correspondence between the testing areas and introducing random errors; second, traditional environmental chamber loading acts on the entire sample, resulting in high thermal inertia and slow switching between operating conditions; third, the scratch application mechanism is mostly rigid contact, which is poorly adaptable to the slight warping or curved contours common in injection molded parts, often leading to fluctuations in normal force and uneven scratch depth, resulting in poor test reproducibility.

[0004] Based on this, the technical problem that this invention aims to solve is: how to provide a detection device that can quickly apply environmental loads and immediately apply accurate scratches. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an injection molded part inspection device for injection molding quality control, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection molded part inspection device for injection molding quality control, comprising a base box and an n-shaped frame disposed on the top of the base box. The base box contains a sample carrying and moving device with its execution end extending to the upper part of the base box. The bottom of the n-shaped frame is sequentially provided with an imaging device and an environmental load local application device. The environmental load local application device has a scratch application device at one end near the imaging device. The environmental load local application device includes a lifting box, an environmental load application hole passing through the bottom of the lifting box, and a temperature load application component and a humidity load application component disposed within the lifting box. The scratch application device includes a lifting power component disposed on the outer wall of the lifting box, a positioning tube disposed at the execution end of the lifting power component, an elastic pressing component disposed within the positioning tube and with its telescopic end extending to the bottom of the positioning tube, a roller frame disposed at the extended end of the elastic pressing component, and a scratch component disposed at the center of the bottom of the roller frame.

[0007] Preferably, the temperature load application component includes an infrared radiator located at the top of the inner wall of the lifting box and an infrared thermal imager located on the inner side wall of the lifting box. In this preferred embodiment, heating is achieved using a top-mounted infrared radiator and real-time temperature monitoring is performed using a side-mounted infrared thermal imager, realizing non-contact, rapid, and localized heating with low thermal inertia. The thermal imager provides real-time temperature feedback for closed-loop control, ensuring precise controllability of loading conditions and enabling the establishment of a correlation model between the temperature field and damage.

[0008] Preferably, the humidity load application component includes two spray pipes symmetrically arranged on both sides of the inner wall of the lifting box, a mixing tank and a delivery pump located on the top of the n-shaped frame, and an air source pipe and a water mist source pipe located on the outer wall of the mixing tank. Both the air source pipe and the water mist source pipe are equipped with flow sensors. The input end of the delivery pump is connected to the mixing tank via a pipe, and the output end of the delivery pump is connected to the two spray pipes via a pipe. In this preferred embodiment, the humidity load application component can generate a precisely controllable humid environment, and the symmetrical spray design ensures uniform humidity coverage in local areas, realistically simulating hot and humid conditions.

[0009] Preferably, the device further includes an elastic sealing component disposed at the bottom of the lifting box and surrounding the environmental load application hole. The elastic sealing component includes an annular frame disposed at the bottom of the lifting box, an elastic airbag disposed within the annular frame, and a plurality of delivery pipes having one end connected to the elastic airbag. In this preferred embodiment, after being inflated, the elastic sealing component can adapt to the irregular curved surface contour of the injection molded part, forming a flexible airtight seal, effectively preventing leakage of temperature and humidity loads.

[0010] Preferably, the lifting power component includes a positioning plate disposed on the outer wall of the lifting box, and a miniature electric cylinder disposed on the outer wall of the positioning plate; the actuating end of the miniature electric cylinder is connected to the outer wall of the positioning tube. In this preferred embodiment, the lifting power component enables precise and rapid adjustment of the height of the scratched component.

[0011] Preferably, the elastic pressing component includes a fixing ring disposed on the inner wall of the positioning tube, a pressing rod whose bottom end sequentially passes through the fixing ring and the positioning tube and extends to the lower part of the positioning tube, an extension platform sleeved on the outer wall of the pressing rod and located inside the positioning tube, and a first spring disposed between the extension platform and the fixing ring; it also includes a distance sensor disposed on the top of the positioning tube and whose detection end extends into the positioning tube; the bottom of the pressing rod is connected to the top of the roller frame. In this preferred embodiment, the elastic pressing component provides a flexible constant force loading mechanism, enabling the roller and the scratching head to adapt to the slight undulations on the surface of the injection molded part, ensuring the stability of the contact normal force, and improving the consistency and reliability of the scratching process.

[0012] Preferably, the scratching component includes a guide rod whose bottom penetrates through the roller frame and extends to the lower part of the roller frame, a scratching head disposed at the bottom of the guide rod, and a second spring sleeved on the outer wall of the guide rod for elastically supporting the vertical downward movement of the guide rod. In this preferred embodiment, the scratching component has an independent, flexible buffering mechanism to avoid damage to the scratching head or sample caused by hard contact, and to ensure a more uniform and stable scratch depth.

[0013] Preferably, the sample carrying and moving device includes a moving drive component disposed within the base box and extending to the upper part of the base box, a carrier box disposed at the actuating end of the moving drive component, a bidirectional linear module disposed on the outer wall of the carrier box and extending through the carrier box, and two clamping plates disposed at the two moving ends of the bidirectional linear module; it also includes a pneumatic cylinder disposed on the top of the bidirectional linear module, and a pusher plate disposed at the actuating end of the pneumatic cylinder. In this preferred embodiment, the sample carrying and moving device realizes automatic centering, clamping, and automatic material pushing after the injection molded part is tested, without the need for manual intervention throughout the process, ensuring the automation and continuity of the testing process.

[0014] Preferably, the moving drive component includes a coarse linear module disposed at the bottom of the inner wall of the base box, and a fine linear module disposed at the execution end of the coarse linear module; the moving end of the fine linear module is connected to the bottom of the carrier box. In this preferred embodiment, the moving drive component balances the efficiency of rapid sample transfer over a wide area with the precise control of minute displacements during scratch testing.

[0015] Preferably, the shooting device includes a telescopic cylinder located at the top of the n-shaped frame and extending to the lower part of the n-shaped frame, a lifting frame located at the telescopic end of the telescopic cylinder, a camera mounted on the lifting frame for shooting the surface of the injection molded part, and an air blower pipe passing through the lifting frame; the air blower pipe is located on the side of the camera near the scratch application device. In this preferred embodiment, the shooting height of the shooting device is adjustable, ensuring clear focus; before secondary shooting, the air blower pipe can first blow away the scratched area, effectively removing chips and dust, ensuring the quality of optical image acquisition and the accuracy of subsequent analysis.

[0016] In summary, the present invention has the following main beneficial effects: The device in this invention achieves accurate, objective, and reproducible quantitative evaluation of the scratch resistance of injection molded parts under simulated temperature and humidity conditions through a closed-loop workflow of "loading first, scratching later, and visual evaluation later". It effectively replaces the traditional offline sampling inspection method that relies on manual labor.

[0017] This advantage is specifically reflected in the precise simulation of working conditions and stable scratch execution achieved through the collaborative efforts of various subsystems. The environmental loading system uses an infrared radiator and a thermal imager to form a closed-loop temperature control, achieving rapid, non-contact localized heating. It works in conjunction with the air-water mixture humidity loading, precisely proportioned by dual flow sensors, to realistically simulate a high-humidity and high-temperature environment. The localized environmental load application achieves high efficiency, and the key elastic airbag sealing component can adapt to the curved contour of the injection molded part to form a localized airtight chamber, ensuring precise and controllable temperature and humidity conditions.

[0018] In the scratching process, the elastic pressing component, through a spring mechanism and a distance sensor, forms a flexible constant force loading mechanism. Combined with the built-in secondary spring buffer in the scratching component, this allows the scratching head to adapt to minute surface undulations, ensuring constant normal force and uniform scratch depth, significantly improving test reproducibility. The scratching application device and the environmental load local application device are separate components to avoid affecting the accuracy of the scratching application device.

[0019] In sample transfer and visual evaluation, the two-stage linear module drive, which combines coarse and fine motion, takes into account both the needs of rapid sample transfer and precise scratch feeding. The detection process begins with the initial image acquisition before environmental loading and ends with secondary imaging after scratching and surface cleaning via an air blower. The scratch morphology is objectively extracted through image difference calculation. Attached Figure Description

[0020] Figure 1 This is an isometric view of the overall structure of the detection device of the present invention; Figure 2 This is an exploded view of the overall structure of the detection device of the present invention; Figure 3 This is an exploded view of the sample carrying and moving device of the present invention; Figure 4 This is an exploded view of the imaging device structure of the present invention; Figure 5 This is an exploded view of the structure of the environmental load local application device of the present invention; Figure 6 An exploded view of the scratch application device of the present invention; Figure 7 This is a cross-sectional view of the overall structure of the device of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point A in the image; Figure 9 For the present invention Figure 7 Enlarged view of the structure at point B in the image.

[0021] Figure Descriptions: 10. Base box; 11. N-shaped frame; 20. Sample carrying and moving device; 21. Moving drive component; 211. Coarse linear module; 212. Fine linear module; 22. Carrier box; 23. Bidirectional linear module; 24. Clamping plate; 25. Pneumatic cylinder; 26. Push plate; 30. Imaging device; 31. Telescopic cylinder; 32. Lifting frame; 33. Camera; 34. Air blowing pipe; 40. Local environmental load application device; 41. Lifting box; 42. Environmental load application hole; 43. Temperature load application component; 431. Infrared radiator; 432. Infrared thermal imager; 44. Humidity load application component; 441. Sprayer 442. Mist pipe; 443. Mixing tank; 444. Delivery pump; 445. Air source pipe; 446. Water mist source pipe; 447. Flow sensor; 45. Elastic sealing component; 451. Annular frame; 452. Elastic airbag; 453. Delivery pipe; 50. Scratch application device; 51. Lifting power component; 511. Positioning plate; 512. Miniature electric cylinder; 52. Positioning tube; 53. Elastic pressing component; 531. Fixing ring; 532. Pressing rod; 533. Extension platform; 534. First spring; 535. Distance sensor; 54. Roller frame; 55. Scratch component; 551. Guide rod; 552. Scratch head; 553. Second spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The embodiments of the present invention will now be described.

[0024] Please refer to the appendix for details. Figure 1 , 2As shown in Figures 3, 4, and 7, in a preferred embodiment of the present invention, an injection molded part inspection device for injection molding quality control includes a base box 10 and an n-shaped frame 11 disposed on the top of the base box 10. The base box 10 contains a sample carrying and moving device 20 with its execution end extending to the upper part of the base box 10. The bottom of the n-shaped frame 11 is sequentially provided with an imaging device 30 and an environmental load local application device 40. The sample carrying and moving device 20 includes a moving drive component 21 disposed within the base box 10 and with its execution end extending to the upper part of the base box 10; a carrier box 22 disposed at the execution end of the moving drive component 21; a bidirectional linear module 23 disposed on the outer wall of the carrier box 22 and with its execution end penetrating the carrier box 22; and two clamping plates 24 disposed at the two moving ends of the bidirectional linear module 23. The device also includes... The device includes a pneumatic cylinder 25 located on top of the bidirectional linear module 23, and a pusher plate 26 located at the actuating end of the pneumatic cylinder 25. The moving drive component 21 includes a coarse linear module 211 located at the bottom of the inner wall of the base box 10, and a fine linear module 212 located at the actuating end of the coarse linear module 211. The moving end of the fine linear module 212 is connected to the bottom of the carrier box 22. The shooting device 30 includes a telescopic cylinder 31 located on top of the n-shaped frame 11 and extending to the lower part of the n-shaped frame 11, a lifting frame 32 located at the telescopic end of the telescopic cylinder 31, a camera 33 located on the lifting frame 32 and used to shoot the surface of the injection molded part, and an air blow pipe 34 passing through the lifting frame 32. The air blow pipe 34 is located on the side of the camera 33 near the scratch application device 50.

[0025] It should be noted that, in this embodiment, when testing the surface scratch resistance of the injection molded part, the operator or robot places the injection molded part to be tested into the carrier box 22. The bidirectional linear module 23 drives the two clamping plates 24 to move closer to each other and clamp the injection molded part. Subsequently, the moving drive component 21 drives the carrier box 22 to move from the initial position. When it passes under the shooting device 30, the telescopic cylinder 31 has adjusted the camera 33 to the preset focus height. The camera 33 takes the first picture of the surface of the injection molded part to obtain the original surface image before environmental loading. The moving drive component 21 continues to drive the carrier box 22 to below the environmental load local application device 40, so that the preset test area on the injection molded part is aligned with the environmental load application hole 42. After the extension end of the drive cylinder on the n-shaped frame 11 drives the lifting box 41 to descend to the set position, the elastic sealing component 45 is activated to seal the gap between the lifting box 41 and the injection molded part. The control system activates the temperature load application component 43 and the humidity load application component 44 according to the preset test conditions to apply the environmental load, and stops after the load is applied for a preset unit time. After the environmental loading is completed, the lifting box 41 is raised, the elastic sealing component 45 stops working, and the moving drive component 21 drives the carrier box 22 to return from the bottom of the box to the initial position. During this process, the scratching application device 50 immediately scratches the local area on the surface of the injection molded part where the environmental load has been applied. When the scratched injection molded part passes under the shooting device 30 again, the air blow pipe 34 first blows the scratched area, and then the camera 33 takes a second picture of the same surface area of ​​the injection molded part. The control system spatially registers the first and second images, then performs image difference operations to extract the morphological features of the scratches, compares them with the preset injection molded part quality control threshold, and outputs a "qualified" or "unqualified" judgment result to complete the inspection. After the test is completed, the bidirectional linear module 23 drives the clamping plate 24 to release, and the pneumatic cylinder 25 drives the push plate 26 to push the injection molded part out of the carrier box 22, completing a single test cycle; Furthermore, when the moving drive component 21 is working, both the coarse linear module 211 and the fine linear module 212 can drive the carrier box 22 to move. The coarse linear module 211 moves along the long axis of the device, and its stroke covers the entire span of the n-shaped frame 11, providing a large stroke movement capability from the initial loading position to the bottom of the lifting box 41. The precision linear module 212 has a small stroke but stable speed control, and is used to precisely control the displacement of the injection molded part when the scratch application device 50 applies scratches.

[0026] Furthermore, when the shooting device 30 is working, the telescopic cylinder 31 extends and retracts to adjust the height of the camera 33. The camera 33 is a high-resolution industrial color camera with its lens pointing downwards toward the surface of the injection molded part, used to take pictures of the surface of the injection molded part. The air blowpipe 34 can be connected to an air source system. The air outlet of the air blowpipe 34 is tilted downwards and points towards the surface of the injection molded part. Before the second shooting, clean compressed air is used to blow the surface of the injection molded part to remove any small amount of chips or dust that may be generated during the scratching process, or any residual droplets on the surface of the injection molded part, so as to ensure that the optical image is not interfered with by foreign objects.

[0027] Please refer to the appendix for details. Figure 2 , 5As shown in Figures 7 and 8, in another preferred embodiment of the present invention, the environmental load local application device 40 is provided with a scratch application device 50 at one end near the imaging device 30. The environmental load local application device 40 includes a lifting box 41, an environmental load application hole 42 passing through the bottom of the lifting box 41, and a temperature load application component 43 and a humidity load application component 44 disposed inside the lifting box 41. The temperature load application component 43 includes an infrared radiator 431 disposed at the top of the inner wall of the lifting box 41, and an infrared thermal imager 432 disposed on the inner side wall of the lifting box 41. The humidity load application component 44 includes two spray pipes 441 symmetrically disposed on both sides of the inner wall of the lifting box 41, and is disposed on the n-shaped frame 11. The top includes a mixing tank 442 and a delivery pump 443, as well as an air source pipe 444 and a water mist source pipe 445 located on the outer wall of the mixing tank 442. Both the air source pipe 444 and the water mist source pipe 445 are equipped with flow sensors 446. The input end of the delivery pump 443 is connected to the mixing tank 442 through a pipe, and the output end of the delivery pump 443 is connected to two spray pipes 441 through a pipe. The system also includes an elastic sealing component 45 located at the bottom of the lifting box 41 and surrounding the environmental load application hole 42. The elastic sealing component 45 includes an annular frame 451 located at the bottom of the lifting box 41, an elastic airbag 452 located within the annular frame 451, and multiple delivery pipes 453 with one end connected to the elastic airbag 452.

[0028] It should be noted that in this embodiment, when the elastic sealing component 45 is working, after the lifting box 41 is lowered to the position, the external air pump inflates the elastic airbag 452 through the delivery pipe 453. After the airbag expands, it fits tightly against the surface of the injection molded part, automatically adapting to the irregular curved contour of the injection molded part to form a flexible airtight seal. When unloading, the elastic airbag 452 deflates and contracts, without affecting the movement of the sample. When the temperature load application component 43 is working, the infrared radiator 431 faces downwards and is directly facing the environmental load application hole 42. The infrared radiator 431 is a short-wave or medium-wave infrared lamp tube with an adjustable power range of 50W to 500W. It can heat the local surface of the injection molded part to the set temperature within a few seconds. Since the infrared radiation acts directly on the material itself rather than heating the air medium, it has low thermal inertia and fast response speed. The infrared thermal imager 432 has its detection window tilted towards the surface of the injection-molded part below the environmental load application hole 42. The infrared thermal imager 432 acquires the surface temperature field distribution of the loaded area in real time in a non-contact manner, generating a visualized thermal image. This thermal image is not only used for closed-loop control of the output power of the infrared radiator 431 to maintain temperature stability, but also spatially registered with the scratch optical image in the subsequent data processing stage to establish a correlation analysis model between temperature distribution and scratch damage degree. When the humidity load application component 44 is working, the air source pipe 444 is connected to a dry compressed air source for quantitatively injecting dry gas into the mixing tank 442; the water mist source pipe 445 is connected to a deionized water atomizing device or a micro-injection pump for quantitatively injecting water mist into the mixing tank 442.

[0029] A flow sensor 446 is connected in series on both the gas source pipe 444 and the water mist source pipe 445 to monitor the flow rates of the drying gas and water mist in real time, and feed the data back to the control system. By coordinating the two flow rates through a PID algorithm, a carrier gas with a set humidity can be obtained at the outlet of the mixing tank 442.

[0030] The delivery pump 443 delivers the carrier gas with a set humidity from the mixing tank 442 to two spray pipes 441. The nozzles of the spray pipes 441 are all facing the surface of the injection molded part below the environmental load application hole 42, ensuring that the humidity airflow evenly covers the local loading area.

[0031] In terms of linkage control, the control system automatically sets the temperature of the supplied gas to be 2-5°C higher than the surface temperature based on the real-time feedback of the injection molded part surface temperature from the infrared thermal imager 432, in order to prevent condensation on the surface and at the same time keep the relative humidity of the contact interface close to the set value.

[0032] Please refer to the appendix for details. Figure 2 , 6As shown in Figure 9, in another preferred embodiment of the present invention, the scratch application device 50 includes a lifting power component 51 disposed on the outer wall of the lifting box 41, a positioning tube 52 disposed on the actuating end of the lifting power component 51, an elastic pressing component 53 disposed inside the positioning tube 52 and extending to the bottom of the positioning tube 52, a roller frame 54 disposed on the extended end of the elastic pressing component 53, and a scratching component 55 disposed at the center of the bottom of the roller frame 54. The lifting power component 51 includes a positioning plate 511 disposed on the outer wall of the lifting box 41, and a miniature electric cylinder 512 disposed on the outer wall of the positioning plate 511. The actuating end of the miniature electric cylinder 512 is connected to the outer wall of the positioning tube 52. The elastic pressing component 53 includes a fixing ring 531 disposed on the inner wall of the positioning tube 52. The bottom end of the device sequentially passes through the fixing ring 531 and the positioning tube 52 and extends to the lower part of the positioning tube 52. An extension platform 533 is sleeved on the outer wall of the pressure rod 532 and located inside the positioning tube 52. A first spring 534 is provided between the extension platform 533 and the fixing ring 531. The device also includes a distance sensor 535 provided on the top of the positioning tube 52 and whose detection end extends into the positioning tube 52. The bottom of the pressure rod 532 is connected to the top of the roller frame 54. The scratching component 55 includes a guide rod 551 whose bottom passes through the roller frame 54 and extends to the lower part of the roller frame 54. A scratching head 552 is provided at the bottom of the guide rod 551. A second spring 553 is sleeved on the outer wall of the guide rod 551 and is used to elastically support the vertical downward movement of the guide rod 551.

[0033] It should be noted that in this embodiment, when the scratch application device 50 is working, the micro electric cylinder 512 drives the positioning tube 52 to rise and fall. When not working, the entire scratch component 55 is raised to avoid interfering with the movement of the sample. Before the scratching action is performed, the positioning tube 52 is lowered to a predetermined height so that the scratch head 552 of the scratch component 55 contacts the surface of the injection molded part. When the miniature electric cylinder 512 pushes the positioning tube 52 downward as a whole, the scratching component 55 first contacts the surface of the injection molded part. As the positioning tube 52 continues to descend, the two rollers symmetrically arranged at the bottom of the roller frame 54 contact the surface of the injection molded part, and the first spring 534 is compressed. The amount of compression of the spring is detected in real time by the distance sensor 535 to ensure that the rollers always contact the surface of the injection molded part. This flexible constant force loading mechanism ensures good tracking ability for curved surfaces. Even if there are slight undulations on the surface, the elastic compensation of the first spring 534 can still keep the normal force stable. The second spring 553 provides vertical downward elastic support to the scratching head 552, ensuring that the scratching head 552 performs scratching work on the surface of the injection molded part.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An injection molded part inspection device for injection molding quality control, comprising a base box (10) and an n-shaped frame (11) disposed on the top of the base box (10), wherein the base box (10) is provided with a sample carrying and moving device (20) with its execution end extending to the upper part of the base box (10), and an imaging device (30) and an environmental load local application device (40) are sequentially disposed at the bottom of the n-shaped frame (11), wherein a scratch application device (50) is provided at one end of the environmental load local application device (40) near the imaging device (30), characterized in that, The local environmental load application device (40) includes a lifting box (41), an environmental load application hole (42) passing through the bottom of the lifting box (41), and a temperature load application component (43) and a humidity load application component (44) disposed in the lifting box (41). The scratch application device (50) includes a lifting power component (51) disposed on the outer wall of the lifting box (41), a positioning tube (52) disposed on the execution end of the lifting power component (51), an elastic pressing component (53) disposed inside the positioning tube (52) and whose telescopic end extends to the bottom of the positioning tube (52), a roller frame (54) disposed on the extended end of the elastic pressing component (53), and a scratching component (55) disposed at the center of the bottom of the roller frame (54).

2. The injection molded part inspection device for injection molding quality control according to claim 1, characterized in that, The temperature load application component (43) includes an infrared radiator (431) located on the top of the inner wall of the lifting box (41) and an infrared thermal imager (432) located on the inner side wall of the lifting box (41).

3. The injection molding part inspection device for injection molding quality control according to claim 1, characterized in that, The humidity load application component (44) includes two spray pipes (441) symmetrically arranged on both sides of the inner wall of the lifting box (41), a mixing tank (442) and a delivery pump (443) arranged on the top of the n-shaped frame (11), and an air source pipe (444) and a water mist source pipe (445) arranged on the outer wall of the mixing tank (442). Both the air source pipe (444) and the water mist source pipe (445) are equipped with flow sensors (446). The input end of the delivery pump (443) is connected to the mixing tank (442) through a pipe, and the output end of the delivery pump (443) is connected to two spray pipes (441) through a pipe.

4. The injection molding part inspection device for injection molding quality control according to claim 1, characterized in that, It also includes an elastic sealing component (45) disposed at the bottom of the lifting box (41) and surrounding the environmental load application hole (42). The elastic sealing component (45) includes an annular frame (451) disposed at the bottom of the lifting box (41), an elastic airbag (452) disposed in the annular frame (451), and a plurality of delivery pipes (453) with one end connected to the elastic airbag (452).

5. The injection molded part inspection device for injection molding quality control according to claim 1, characterized in that, The lifting power component (51) includes a positioning plate (511) disposed on the outer wall of the lifting box (41) and a miniature electric cylinder (512) disposed on the outer wall of the positioning plate (511). The actuator of the miniature electric cylinder (512) is connected to the outer wall of the positioning tube (52).

6. The injection molding part inspection device for injection molding quality control according to claim 1, characterized in that, The elastic pressing component (53) includes a fixing ring (531) disposed on the inner wall of the positioning tube (52), a pressing rod (532) whose bottom end sequentially passes through the fixing ring (531) and the positioning tube (52) and extends to the lower part of the positioning tube (52), an extension platform (533) sleeved on the outer wall of the pressing rod (532) and located in the positioning tube (52), and a first spring (534) disposed between the extension platform (533) and the fixing ring (531). It also includes a distance sensor (535) located at the top of the positioning tube (52) and whose detection end extends into the positioning tube (52); The bottom of the pressure rod (532) is connected to the top of the roller frame (54).

7. The injection molded part inspection device for injection molding quality control according to claim 1, characterized in that, The scratching component (55) includes a guide rod (551) that passes through the bottom of the roller frame (54) and extends to the lower part of the roller frame (54), a scratching head (552) disposed at the bottom of the guide rod (551), and a second spring (553) sleeved on the outer wall of the guide rod (551) and used to elastically support the guide rod (551) to move vertically downward.

8. The injection molding part inspection device for injection molding quality control according to claim 1, characterized in that, The sample carrying moving device (20) includes a moving drive component (21) disposed inside the base box (10) and whose execution end extends to the upper part of the base box (10), a carrying box (22) disposed at the execution end of the moving drive component (21), a bidirectional linear module (23) disposed on the outer wall of the carrying box (22) and whose execution end penetrates the carrying box (22), and two clamping plates (24) disposed at the two moving ends of the bidirectional linear module (23). It also includes a pneumatic cylinder (25) located on top of the bidirectional linear module (23), and a push plate (26) located at the actuating end of the pneumatic cylinder (25).

9. The injection molding part inspection device for injection molding quality control according to claim 8, characterized in that, The moving drive component (21) includes a coarse linear module (211) disposed at the bottom of the inner wall of the base box (10), and a fine linear module (212) disposed at the execution end of the coarse linear module (211). The movable end of the precision linear module (212) is connected to the bottom of the carrier box (22).

10. The injection molding part inspection device for injection molding quality control according to claim 1, characterized in that, The shooting device (30) includes a telescopic cylinder (31) located on the top of the n-shaped frame (11) and extending to the lower part of the n-shaped frame (11), a lifting frame (32) located at the telescopic end of the telescopic cylinder (31), a camera (33) located on the lifting frame (32) and used to shoot the surface of the injection molded part, and an air blowing pipe (34) passing through the lifting frame (32). The air blowing pipe (34) is located on the side of the camera (33) near the scratch application device (50).

Images