Detection equipment for detecting qualified rate of injection molding products

Abstract

The utility model relates to the technical field of injection molding product detection, in particular to detection equipment for detecting the qualification rate of injection molding products, and the detection equipment comprises a detection box, one side of the inner wall of the detection box is rotatably matched with a material conveying belt, and one side of the inner wall of the detection box is fixedly connected with an adjusting seat located on the upper side of the material conveying belt; one side of the adjusting seat is in sliding fit with a lifting plate, and the lifting plate is fixedly connected with a lens camera group. According to the utility model, by arranging the spring, the tightening plate, the linkage rope, the positioning seat and the like, an injection product can be tightened and positioned when being conveyed to a detection area, so that a workpiece can be kept at a proper position with a lens camera group during each detection, the position deviation caused by transportation is effectively avoided, and the detection efficiency is improved. The probability that one end is not in the image or the actual shooting angle is inconsistent with the preset angle is reduced, the accuracy of image acquisition is ensured, and the detection precision is further ensured.

Description

Technical Field

[0001] This application relates to the technical field of injection molded product testing, and in particular to a testing device for detecting the pass rate of injection molded products. Background Technology

[0002] Injection-molded products are various plastic products manufactured through injection molding. After the injection-molded products have cooled, the molded structure usually needs to be inspected to analyze its pass rate. Inspection equipment is typically used, and the inspection principle generally involves using an industrial camera, commonly a CCD camera or a CMOS camera, to capture images of the appearance of the injection-molded product. The camera acquires a clear image of the product according to the set shooting angle, distance, and lighting conditions (usually equipped with a dedicated light source to provide appropriate illumination, such as a ring light source or backlight source, to highlight the surface features of the product). Then, the acquired image data is transmitted to image analysis and processing software. The software uses image processing algorithms, such as edge detection algorithms, template matching algorithms, feature extraction and recognition algorithms, to automatically detect and judge product defects, and determines whether the product appearance meets the requirements based on the set pass threshold.

[0003] During inspection, the cooled material is usually placed on a transparent conveyor belt for transport. Once the material moves between cameras, it is captured by the cameras for inspection. However, during the inspection process, the material may be affected by transportation, causing the position of the injection molded product to change or shift. If the position of the injection molded product shifts, one end may not be in the image, affecting the accuracy of the inspection, or the actual shooting angle may not be consistent with the preset angle, causing some appearance defects to be missed. Utility Model Content

[0004] To address the problems mentioned in the background section, this application provides a testing device for detecting the pass rate of injection molded products.

[0005] This application provides a testing device for detecting the pass rate of injection molded products, which adopts the following technical solution: it includes a testing box, a material conveyor belt is rotatably fitted on one side of the inner wall of the testing box, an adjustment seat is fixedly connected to one side of the inner wall of the testing box and above the material conveyor belt, a lifting plate is slidably fitted on one side of the adjustment seat, and a lens camera group is fixedly connected to the lifting plate.

[0006] A fixing plate is fixedly connected to one side of the inner wall of the detection box and above the lifting plate. Multiple positioning seats are fixedly connected to the lifting plate. Each of the multiple positioning seats has a movable groove on its lower side. Each of the multiple movable grooves has a tightening plate slidably fitted on its inner wall. Each of the multiple movable grooves has an L-shaped hole on the side of its inner wall away from the tightening plate. A linkage rope is fixedly connected between the tightening plate and the fixing plate. A spring is fixedly connected between the tightening plate and the movable groove. A cleaning mechanism is provided on one side of the inner wall of the detection box. A lower detection mechanism is provided on one side of the detection box and inside the conveyor belt.

[0007] Optionally, the cleaning mechanism includes an extension plate fixedly connected to one side of the inner wall of the detection box, a hollow block fixedly connected to one side of the extension plate, a plurality of exhaust holes opened on one side of the inner wall of the hollow block, and a fan fixedly connected to the extension plate and cooperating with the hollow block.

[0008] Optionally, the lower detection mechanism includes a mounting plate fixedly connected to one side of the inner wall of the detection box and located inside the conveyor belt, and a lower detection head fixedly connected to the upper side of the mounting plate.

[0009] Optionally, an inspection port is provided on one side of the testing box, and the inner wall of the inspection port has two rotatably fitted sealing doors.

[0010] Optionally, one of the two sealed doors has an observation port on one side, and a transparent plate is fixedly connected to the inner wall of the observation port.

[0011] Optionally, a positive light source is fixedly connected to the lower side of the lifting plate, and the positive light source is located outside the lens camera assembly.

[0012] Optionally, a three-color alarm light is fixedly connected to the upper side of the detection box, and a control panel is fixedly connected to one side of one of the two sealed doors. The control panel and the three-color alarm light are electrically connected.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, by incorporating components such as springs, tightening plates, linkage ropes, and positioning seats, enables the tightening and positioning of injection-molded products when they are transported to the inspection area. This ensures that the workpiece maintains a suitable position with the lens camera assembly during each inspection, effectively preventing positional shifts caused by transportation and reducing the probability of situations such as one end being out of the image or the actual shooting angle being inconsistent with the preset angle. This guarantees the accuracy of image acquisition and thus ensures inspection precision.

[0015] 2. By setting up a cleaning mechanism, this utility model can realize the use of a fan to blow air into the hollow block. The air is blown out through the exhaust hole on the hollow block, which can clean the material conveyor belt in the inspection box and the upper side of the workpiece by blowing air, preventing dust and other impurities from adhering to the surface of the injection molded product and interfering with the appearance inspection, avoiding dust from affecting the inspection accuracy, and creating a good environment for accurate inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional cross-section of the embodiments of this application;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the lifting plate in the embodiments of this application;

[0019] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Reference numerals: 1. Inspection box; 2. Conveyor belt; 3. Adjustment seat; 4. Lifting plate; 5. Lens camera assembly; 7. Fixing plate; 8. Positioning seat; 9. Movable groove; 10. Tensioning plate; 11. L-shaped hole; 12. Linkage rope; 13. Spring; 14. Cleaning mechanism; 141. Extension plate; 142. Hollow block; 143. Vent hole;

[0021] 144. Fan; 15. Lower inspection mechanism; 151. Mounting plate; 152. Lower inspection head; 16. Inspection port;

[0022] 17. Sealed door; 18. Observation port; 19. Transparent panel; 20. Positive light source; 21. Three-color detection alarm light;

[0023] 22. Control Panel. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0025] This application discloses a testing device for detecting the pass rate of injection molded products. For example... Figure 1 As shown, the device includes a detection box 1, a conveyor belt 2 rotatably connected to one side of the inner wall of the detection box 1, an adjustment seat 3 fixedly connected to one side of the inner wall of the detection box 1 and above the conveyor belt 2, a lifting plate 4 slidably connected to one side of the adjustment seat 3, and a lens camera group 5 fixedly connected to the lifting plate 4.

[0026] Please see Figure 1The inspection box 1 has an inspection port 16 on one side. The inner wall of the inspection port 16 has two sealing doors 17 that rotate and fit together. By opening the sealing doors 17, the interior of the inspection box 1 can be inspected, maintained or cleaned through the inspection port 16.

[0027] Please see Figure 2 A positive light source 20 is fixedly connected to the lower side of the lifting plate 4. The positive light source 20 is located outside the lens camera group 5. The positive light source 20 can illuminate the auxiliary lens camera group 5 more clearly, thereby improving the accuracy of detection.

[0028] A fixed plate 7 is fixedly connected to one side of the inner wall of the inspection box 1 and above the lifting plate 4. Multiple positioning seats 8 are fixedly connected to the lifting plate 4. Each of the multiple positioning seats 8 has a movable groove 9 on its lower side. Each of the multiple movable grooves 9 has a tightening plate 10 slidingly fitted on its inner wall. Each of the multiple movable grooves 9 has an L-shaped hole 11 on the side of its inner wall away from the tightening plate 10. A linkage rope 12 is fixedly connected between the tightening plate 10 and the fixed plate 7. A spring 13 is fixedly connected between the tightening plate 10 and the movable groove 9. A cleaning mechanism 14 is provided on one side of the inner wall of the inspection box 1. A lower inspection mechanism 15 is provided on one side of the inspection box 1 and inside the conveyor belt 2.

[0029] Please see Figure 2 The cleaning mechanism 14 includes an extension plate 141 fixedly connected to one side of the inner wall of the inspection box 1, a hollow block 142 fixedly connected to one side of the extension plate 141, multiple exhaust holes 143 opened on one side of the inner wall of the hollow block 142, and a fan 144 fixedly connected to the extension plate 141 and cooperating with the hollow block 142. During transportation, the fan 144 blows air into the hollow block 142, and the air is blown out through the multiple exhaust holes 143 on one side of the inner wall of the hollow block 142. This can clean the material conveyor belt 2 inside the inspection box 1 and the surface of the workpiece on the upper side by blowing air, avoiding dust and other impurities from affecting the inspection accuracy, preventing dust from adhering to the surface of the injection molded product and interfering with the appearance inspection, and improving the efficiency and quality of the inspection work.

[0030] Please see Figure 2 The lower inspection mechanism 15 includes a mounting plate 151 fixedly connected to one side of the inner wall of the inspection box 1 and located inside the conveyor belt 2, and a lower inspection head 152 fixedly connected to the upper side of the mounting plate 151. The lower inspection head 152 is also a 2500W rear appearance inspection camera, which is existing technology.

[0031] Please see Figure 1 An observation port 18 is provided on one side of one of the two sealed doors 17. A transparent plate 19 is fixedly connected to the inner wall of the observation port 18. The internal situation can be easily observed through the observation port 18 in the transparent plate 19 without opening the sealed door 17.

[0032] Please see Figure 1A three-color alarm light 21 is fixedly connected to the upper side of the testing box 1. A control panel 22 is fixedly connected to one side of one of the two sealed doors 17. The control panel 22 and the three-color alarm light 21 are electrically connected. The three-color alarm light 21 is installed on the upper side of the testing box 1 in a relatively conspicuous position. It can be red, yellow and green. When the image analysis and processing software makes a judgment on whether the injection molded product is qualified and the corresponding status based on the collected image data and the set qualified threshold, it will transmit the result signal to the control panel 22. The control panel 22 will immediately control the three-color alarm light 21 to light up the corresponding color light according to the result, realizing real-time feedback and intuitive prompt of the test result.

[0033] The implementation principle of a testing device for detecting the pass rate of injection molded products in this application embodiment is as follows: After the injection molded products are cooled, they are placed on the conveyor belt 2 inside the testing box 1. The conveyor belt 2 plays the role of conveying materials, similar to the function of a transparent conveyor belt in conventional testing, and conveys the injection molded products to the testing area in sequence.

[0034] Under normal circumstances, the spring 13 keeps the tightening plate 10 in a certain position. When the injection molded product is transported and located under the multiple tightening plates 10, the lifting plate 4 is moved downward by the adjusting seat 3. Since the upper end of the L-shaped hole 11 is fixed to the lower side of the fixed plate 7, when the lifting plate 4 moves downward, the linkage rope 12 will pull the corresponding tightening plate 10 in the L-shaped hole 11 to tighten it, so that the tightening plate 10 slides in the movable groove 9, so that the multiple tightening plates 10 tighten the workpiece around the lower side, so that the workpiece can maintain a proper position with the lens camera group 5 during each inspection, avoiding positional deviation due to transportation, thus reducing the probability of one end not being in the image or the actual shooting angle being inconsistent with the preset angle, and ensuring the accuracy of image acquisition.

[0035] During transportation, the blower 144 blows air into the hollow block 142. The air is blown out through multiple exhaust holes 143 on one side of the inner wall of the hollow block 142, which can clean the material conveyor belt 2 inside the inspection box 1 and the upper side of the workpiece by blowing air, preventing dust from adhering to the surface of the injection molded product and interfering with the appearance inspection, thus improving the efficiency and quality of the inspection work.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing device for detecting the pass rate of injection molded products, comprising a testing chamber (1), characterized in that: The inner wall of the detection box (1) is rotatably fitted with a conveyor belt (2), and an adjustment seat (3) is fixedly connected to one side of the inner wall of the detection box (1) and above the conveyor belt (2). A lifting plate (4) is slidably fitted to one side of the adjustment seat (3), and a lens camera group (5) is fixedly connected to the lifting plate (4). A fixing plate (7) is fixedly connected to one side of the inner wall of the detection box (1) and above the lifting plate (4). A plurality of positioning seats (8) are fixedly connected to the lifting plate (4). Each of the positioning seats (8) has a movable groove (9) on its lower side. Each of the movable grooves (9) has a tightening plate (10) slidingly fitted on its inner wall. Each of the movable grooves (9) has an L-shaped hole (11) on its inner wall away from the tightening plate (10). A linkage rope (12) is fixedly connected between the tightening plate (10) and the fixing plate (7). A spring (13) is fixedly connected between the tightening plate (10) and the movable groove (9). A cleaning mechanism (14) is provided on one side of the inner wall of the detection box (1). A lower detection mechanism (15) is provided on one side of the detection box (1) and inside the conveyor belt (2).

2. The testing equipment for detecting the pass rate of injection molded products according to claim 1, characterized in that: The cleaning mechanism (14) includes an extension plate (141) fixedly connected to one side of the inner wall of the detection box (1), a hollow block (142) fixedly connected to one side of the extension plate (141), a plurality of exhaust holes (143) opened on one side of the inner wall of the hollow block (142), and a fan (144) fixedly connected to the extension plate (141) and cooperating with the hollow block (142).

3. The testing equipment for detecting the pass rate of injection molded products according to claim 1, characterized in that: The lower detection mechanism (15) includes a mounting plate (151) fixedly connected to one side of the inner wall of the detection box (1) and located inside the conveyor belt (2), and a lower detection head (152) fixedly connected to the upper side of the mounting plate (151).

4. The testing equipment for detecting the pass rate of injection molded products according to claim 1, characterized in that: The testing box (1) has an inspection port (16) on one side, and the inner wall of the inspection port (16) has two sealing doors (17) that are rotatably fitted.

5. The testing equipment for detecting the pass rate of injection molded products according to claim 4, characterized in that: An observation port (18) is provided on one side of one of the two sealing doors (17), and a transparent plate (19) is fixedly connected to the inner wall of the observation port (18).

6. The testing equipment for detecting the pass rate of injection molded products according to claim 1, characterized in that: A positive light source (20) is fixedly connected to the lower side of the lifting plate (4), and the positive light source (20) is located outside the lens camera group (5).

7. The testing equipment for detecting the pass rate of injection molded products according to claim 4, characterized in that: A three-color alarm light (21) is fixedly connected to the upper side of the detection box (1), and a control panel (22) is fixedly connected to one side of one of the two sealing doors (17). The control panel (22) and the three-color alarm light (21) are electrically connected.

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