Appearance detection equipment for injection molding part production

By designing automated appearance inspection equipment, the problem of a single inspection location in injection molding production has been solved, achieving efficient and accurate injection molding inspection and adapting to the production needs of injection molding parts of different sizes and types.

CN223770092UActive Publication Date: 2026-01-06SUZHOU JUHONGTAI AUTOMOBILE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520041018.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-01-06
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Existing appearance inspection equipment for injection molded parts production lacks efficient automated inspection functions. The inspection mechanism has a single installation location and cannot be flexibly adjusted, resulting in a limited inspection range and affecting inspection efficiency and accuracy.

Method used

An appearance inspection device was designed, which includes components such as a work frame, a base, a lifting platform, and an inspection camera. The device automatically transports injection molded parts via a conveyor frame, and the inspection camera can be raised, lowered, and moved horizontally. Combined with an image processing system, it performs automated analysis and is adaptable to the inspection of injection molded parts of different sizes and types.

Benefits of technology

It achieves efficient and automated inspection of injection molded parts, improves inspection efficiency and accuracy, reduces manual intervention and costs, and adapts to the production needs of injection molded parts of different sizes and types.

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Abstract

The appearance detection equipment comprises a working frame, a machine base, a lifting table, a top base, a base, a connecting table, a conveying frame, a displayer and a controller, the machine base is arranged in the middle of the inner bottom face of the working frame, the lifting table is arranged over the machine base, the top base is arranged on the top of the lifting table, and the base is arranged on the top of the lifting table. Bases are arranged on the two sides of the lower portion of the top base, a connecting table is arranged between the position over the machine base and the bottom face of the top base, a conveying frame is arranged on the surface of the working frame, a displayer is arranged on one side of the front end of the working frame, and a controller is arranged on the other side of the front end of the working frame. According to the appearance detection equipment for injection molding part production, the number of the detection cameras is allowed to be increased or decreased according to production requirements through the design of the equipment so as to adapt to production of injection molding parts of different scales and types, the manual detection time and cost are also reduced through automatic detection, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of injection molding production equipment, and specifically to an appearance inspection device for injection molding production. Background Technology

[0002] Injection molded parts are components manufactured using the injection molding process. They are typically made of plastic or rubber materials and are widely used in various fields such as electronics, automobiles, medical devices, and home appliances. Injection molding is a process in which thermoplastic or thermosetting materials are processed through molds and injection machines to create various shapes of plastic or rubber products. With continuous technological advancements and increasing demands for product quality, injection molding technology will continue to be widely applied and developed in various fields. In the future, the production of injection molded parts will place greater emphasis on environmental protection, energy conservation, and sustainable development. At the same time, the precision, strength, and durability of injection molded parts will be further improved.

[0003] Existing appearance inspection equipment for injection molded parts production lacks efficient automated inspection capabilities, such as the injection molded parts weight and appearance inspection device disclosed in application number CN202321953501.2. These existing appearance inspection devices for injection molded parts use a single installation position for the inspection mechanism and lack corresponding automatic adjustment functions. This prevents efficient automatic inspection of injection molded parts. The single installation position means it can only inspect injection molded parts at specific locations or angles. If the size, shape, or inspection area of ​​the injection molded part changes, the inspection mechanism may not accurately capture the area to be inspected, resulting in a limited inspection range and an inability to comprehensively cover appearance defects, thus increasing the risk of missed inspections. Because the inspection mechanism lacks automatic adjustment, manual adjustment of its position or angle may be required when inspecting injection molded parts of different sizes or types. This is not only time-consuming and labor-intensive but may also affect inspection efficiency. The inflexible installation position of the inspection mechanism may lead to unsuitable inspection angles or distances, affecting the accuracy of the inspection results and increasing the likelihood of poor inspection performance during use, ultimately impacting the quality of subsequent product packaging.

[0004] Therefore, it is necessary to invent an appearance inspection device for injection molded parts production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an appearance inspection device for injection molded parts production, in order to solve the problem that the device lacks efficient automated inspection functions in use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an appearance inspection device for injection molded parts production, comprising a work frame, a base, a lifting platform, a top seat, a base, a connecting platform, a conveyor frame, a display, and a controller. The work frame has a base in the middle of its inner bottom surface. The lifting platform is located directly above the base. The top seat is located on the top of the lifting platform. Bases are located on both sides below the top seat. A connecting platform is located between the top of the base and the bottom of the top seat. A conveyor frame is located on the surface of the work frame. A display is located on one side of the front end of the work frame, and a controller is located on the other side of the front end of the work frame.

[0007] Preferably, the middle part of the work frame is hollow, and the lifting platform is lifted and lowered by a base drive.

[0008] Preferably, a movable groove is provided in the middle of both sides of the bottom surface of the top seat, a reciprocating screw is installed in the middle of the movable groove, a movable block is installed on one side of the middle of the movable groove, and the reciprocating screw passes through the middle of the movable block.

[0009] Preferably, auxiliary slots are provided on both sides of the movable slot, and the auxiliary slots are respectively opened on both sides of the bottom surface of the top seat. An auxiliary slider is installed in the middle of the auxiliary slot and the auxiliary slider is fixedly connected to the surface of the connecting platform.

[0010] Preferably, a motor is provided at one end of the reciprocating screw, and two motors are provided, which are located at the middle of both ends of the top seat respectively. A rotating shaft is provided at the connection between the reciprocating screw and the inner wall of the moving groove on both sides.

[0011] Preferably, there are two bases corresponding to the number of connecting platforms. A connector is installed in the middle of the top surface of the base, and a detection camera is installed below the connector. The detection camera is located in the middle of the bottom surface of the base.

[0012] Preferably, the detection camera is provided with a protective frame on its exterior, the protective frame is located around the bottom edge of the base, and connecting frames are installed on both sides of the surface of the base.

[0013] Preferably, the connecting frame is I-shaped, with its top end connected to the bottom of the connecting platform. A docking sensor is installed on one side of the bottom surface of the protective frame. A feeding frame corresponding to the position of the detection camera is provided on the surface of the conveying frame, and a sensor receiver matching the docking sensor is provided on one side inside the feeding frame.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This appearance inspection equipment for injection molded parts production automatically transports the injection molded parts to the inspection position via a conveyor frame, eliminating the need for manual intervention and greatly improving inspection efficiency. The inspection camera is positioned in the center of the base bottom surface, accurately capturing images of the injection molded parts. The image processing system then performs automated analysis to quickly determine the quality of the injection molded parts. The lifting platform is driven by the base to raise and lower, allowing adjustment of the relative height between the inspection camera and the injection molded parts to meet the inspection needs of injection molded parts of different sizes. The equipment design allows for the addition or reduction of the number of inspection cameras according to production needs, accommodating different scales and types of injection molded parts production. Automated inspection also reduces the time and cost of manual inspection, improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side-view structural diagram of the present invention;

[0018] Figure 3 This is a bottom view of the top seat structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the base and connecting platform of this utility model;

[0020] Figure 5 This is a top view of the connecting platform structure of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Work frame; 2. Base; 3. Lifting platform; 4. Top seat; 401. Moving groove; 402. Reciprocating screw; 403. Moving block; 404. Auxiliary groove; 405. Auxiliary slider; 406. Motor; 407. Rotating shaft; 5. Base; 501. Connector; 502. Detection camera; 503. Protective frame; 504. Connecting frame; 505. Docking sensor; 506. Feeding frame; 6. Connecting table; 7. Conveyor frame; 8. Display; 9. Controller. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-5The illustrated appearance inspection equipment for injection molded parts production includes a work frame 1, a base 2, a lifting platform 3, and a top seat 4. The base 2 is located in the center of the inner bottom surface of the work frame 1, and the lifting platform 3 is located directly above the base 2. The center of the work frame 1 is hollow. The lifting platform 3 is driven by the base 2 for lifting operations. The top seat 4 is located on the top of the lifting platform 3. Movable grooves 401 are opened in the center of both sides of the bottom surface of the top seat 4. A reciprocating screw 402 is installed in the center of the movable groove 401, and a movable block 403 is installed on one side of the center of the movable groove 401. A reciprocating screw 402 passes through the middle of the moving block 403. Auxiliary slots 404 are provided on both sides of the moving slot 401. The auxiliary slots 404 are respectively opened on both sides of the bottom surface of the top seat 4. An auxiliary slider 405 is installed in the middle of the auxiliary slot 404. The auxiliary slider 405 is fixedly connected to the surface of the connecting table 6. A motor 406 is provided at one end of the reciprocating screw 402. Two motors 406 are provided and are located at the middle of both ends of the top seat 4. A rotating shaft 407 is provided at the connection between the reciprocating screw 402 and the inner wall of the moving slot 401.

[0025] Bases 5 are provided on both sides below the top base 4. Two bases 5 are provided, corresponding to the number of connecting platforms 6. A connector 501 is installed in the center of the top surface of the base 5. A detection camera 502 is installed below the connector 501, located in the center of the bottom surface of the base 5. A protective frame 503 is provided around the bottom edge of the base 5. Connecting frames 504 are installed on both sides of the surface of the base 5. The connecting frames 504 are I-shaped. The top is connected to the bottom of the connecting platform 6. A docking sensor 505 is installed on one side of the bottom surface of the protective frame 503. A feeding frame 506 corresponding to the position of the detection camera 502 is set on the surface of the conveyor frame 7. A sensor receiver matching the docking sensor 505 is set on one side inside the feeding frame 506. A connecting platform 6 is set between the top of the machine base 2 and the bottom surface of the top base 4. A conveyor frame 7 is set on the surface of the work frame 1. A display 8 is set on one side of the front end of the work frame 1. A controller 9 is set on the other side of the front end of the work frame 1.

[0026] The working principle of this practical application is as follows:

[0027] Refer to the instruction manual appendix Figure 1-5For this type of appearance inspection equipment used in injection molding production, the equipment first uses the base 2 to drive the lifting platform 3 to move up and down. The relative position between the inspection camera 502 and the injection molded part can be adjusted to accommodate the inspection needs of injection molded parts of different sizes. The conveyor frame 7 is used to transport the injection molded part to the inspection position. The inspection camera 502 is used to capture images of the injection molded part. When the injection molded part is transported to the inspection position, the inspection camera 502 takes a picture of it. The captured image is transmitted to the controller 9 for image processing and analysis. The controller usually has a dedicated image processing system. This system can convert the image signal into a digital signal based on information such as pixel distribution, brightness, and color, and perform various calculations to extract target features, thereby distinguishing between good and defective products. The top seat 4 has two sides at the center of its bottom surface. A reciprocating screw 402 and a moving block 403 are installed in the movable groove 401. The reciprocating screw 402 is driven to rotate by the motor 406, so that the moving block 403 moves back and forth in the movable groove 401. This design allows the detection camera 502 to move horizontally within a certain range, thereby realizing the detection of different parts of the injection molded part. The auxiliary groove 404 and the auxiliary slider 405 are designed to increase the stability and accuracy of the movement. The docking sensor 505 installed on one side of the bottom surface of the protective frame 503 matches the sensor receiver set on the surface of the conveyor frame 7. It is used to detect whether the injection molded part has reached the detection position. When the injection molded part is transported to the detection position and triggers the sensor receiver, the docking sensor 505 will send a signal to the controller 9. The controller 9 will then start the detection camera 502 to take pictures and analyze.

[0028] When using this device, initial setup is required, including adjusting the height of the lifting platform 3, setting the parameters of the detection camera 502, and calibrating the docking sensor 505. The injection molded part to be inspected is transported to the inspection position by the conveyor frame 7. When the injection molded part reaches the inspection position and triggers the sensor receiver, the docking sensor 505 sends a signal to the controller 9. The controller 9 then activates the detection camera 502 to take a picture and transmits the captured image to the image processing system for analysis. The image processing system performs calculations and analysis on the received image and, based on preset good and bad product judgment standards, determines whether the injection molded part is qualified. The test results are displayed in real time on the monitor 8, including information such as the total number of tests, the total number of qualified products, and the total number of unqualified products. The controller 9 will also control the on-site equipment actions based on the judgment results, such as continuing to transport good products to the next process or rejecting defective products. The various parameters of the equipment are calibrated and adjusted regularly to ensure the accuracy and stability of the test. Through the above description of the working principle and usage method, it can be seen that this appearance inspection equipment for injection molded parts production has the advantages of high automation, high inspection efficiency, and accurate and reliable inspection results. It can effectively improve the production quality and efficiency of injection molded parts and reduce the cost and error rate of manual inspection.

Claims

1. An appearance inspection apparatus for injection molded part production, comprising a workbench (1), a base (2), a lifting platform (3), a top seat (4), a base seat (5), a connecting platform (6), a conveying frame (7), a display (8) and a controller (9), characterized in that, The inner bottom surface of the workbench (1) is provided with a base (2), the upper side of the base (2) is provided with a lifting platform (3), the top of the lifting platform (3) is provided with a top seat (4), the two sides below the top seat (4) are provided with a base (5), the upper side of the base (2) and the bottom surface of the top seat (4) are provided with a connecting table (6), the surface of the workbench (1) is provided with a conveying frame (7), one side of the front end of the workbench (1) is provided with a display (8), the other side of the front end of the workbench (1) is provided with a controller (9).

2. The appearance inspection apparatus for injection-molded parts according to claim 1, characterized by: The middle part of the workbench (1) is hollow, and the lifting platform (3) is driven to work by the base (2).

3. The appearance inspection apparatus for injection-molded parts according to claim 1, characterized by: The bottom surface of the top seat (4) is provided with a moving groove (401) in the middle of the two sides, a reciprocating screw rod (402) is installed in the middle of the moving groove (401), and a moving block (403) is installed on one side of the middle of the moving groove (401).

4. The appearance inspection apparatus for injection-molded parts according to claim 3, characterized by: The two sides of the moving groove (401) are provided with auxiliary grooves (404), the auxiliary grooves (404) are respectively arranged on the two sides of the bottom surface of the top seat (4), and auxiliary sliding blocks (405) are installed in the middle of the auxiliary grooves (404).

5. The appearance inspection apparatus for injection-molded parts according to claim 3, characterized by: The two ends of the reciprocating screw rod (402) are provided with motors (406), the two motors (406) are respectively arranged in the middle of the two ends of the top seat (4), and rotating shafts (407) are arranged at the connection positions between the reciprocating screw rod (402) and the inner walls of the moving grooves (401).

6. The appearance inspection apparatus for injection-molded parts according to claim 1, characterized by: The base (5) is provided with two corresponding base (5) according to the number of connecting tables (6), the top surface of the base (5) is provided with a connector (501), the bottom surface of the connector (501) is provided with a detection camera (502), and the detection camera (502) is arranged in the middle of the bottom surface of the base (5).

7. The appearance inspection apparatus for injection-molded parts according to claim 6, characterized by: The outer side of the detection camera (502) is provided with a protection frame (503), the protection frame (503) is arranged around the edge of the bottom surface of the base (5), and the surface of the base (5) is provided with a connecting frame (504) on both sides of the edge.

8. The appearance inspection apparatus according to claim 7, wherein: The connecting frame (504) is in the shape of an I-shaped, the top end of the connecting frame (504) is connected to the bottom of the connecting table (6), the bottom surface of the protection frame (503) is provided with a docking inductor (505), the surface of the conveying frame (7) is provided with a discharging frame (506) corresponding to the position of the detection camera (502), and the inner side of the discharging frame (506) is provided with an inductive receiver matched with the docking inductor (505).

Citation Information

Patent Citations

  • Device for detecting weight and appearance of injection molded part

    CN220206811U