Injection product in-mold online quality detection system

Abstract

The utility model discloses an in-mold online quality detection system for an injection product, and belongs to the technical field of injection molding. According to the injection product in-mold online quality detection system provided by the utility model, a capacitance signal in a mold cavity of an injection mold is collected by the in-mold sensor, is converted into a digital signal by the amplifier and is input into the collector; the collector draws a real-time signal curve according to mold opening and closing action signals of the injection molding machine and capacitance signals of all stages collected in the injection molding process, the real-time signal curve is compared with reference signals, and alarm signals and automatic sorting signals are output. According to the scheme, the sensor is low in manufacturing and mounting cost, high in applicability, rich in monitoring content and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an in-mold online quality detection system for injection molding products. Background Art

[0002] At each stage of the injection molding process, the state of the melt in the mold cavity changes greatly, and these changes have a decisive impact on the quality of the product. Real-time sensing of the melt information in the mold during the injection, pressure holding, cooling and other stages, real-time visualization of the melt information in the mold, and alarming when the real-time signal exceeds the preset range are crucial for predicting and controlling product quality. However, there is still a lack of mature related technical solutions on the market. Utility Model Content

[0003] The utility model aims at the above problems in the injection molding industry and provides an online quality detection system for injection molding products, which can visually display the signal of the melt in the mold cavity in real time and judge the product quality according to the melt signal.

[0004] The utility model provides an in-mold online quality detection system for injection molded products, the system includes multiple groups of in-mold sensors, amplifiers, collectors, injection molding machines, and display devices, wherein:

[0005] The in-mold sensor includes an in-mold probe and an out-mold connector, wherein a capacitor sensor is arranged in the in-mold probe, the in-mold probe is installed and fixed in the mold, the in-mold probe and the out-mold connector are fixedly connected through a cable, and the cable and the out-mold connector are located outside the mold; the in-mold sensor is used to collect melt signals in the mold cavity;

[0006] The amplifier is arranged outside the mold, the input end of the amplifier is fixedly connected to the outside-mold connector, the amplifier is provided with input ports corresponding to the plurality of groups of in-mold sensors, and the amplifier is used to convert the capacitance signals collected by the in-mold sensors into digital signals;

[0007] The first input end of the collector is communicatively connected to the output end of the amplifier, and the collector is provided with one or more first input ports corresponding to the amplifier; the second input end of the collector is communicatively connected to the injection molding machine, and is used to receive the signal output by the injection molding machine, and the signal includes a mold opening and closing signal and an injection signal; the first output end of the collector is communicatively connected to the display device, and is used to output a real-time signal curve and an alarm signal; the second output end of the collector is communicatively connected to the manipulator, and is used to output an automatic sorting signal; the collector receives the signal collected by the in-mold sensor, processes the signal, draws a real-time signal curve, compares the real-time signal curve with the reference signal, and outputs an alarm signal and an automatic sorting signal.

[0008] Preferably, the capacitor sensor adopts a point electrode type capacitor sensor or a flat plate type capacitor sensor according to the structural characteristics of the product and the mold.

[0009] Preferably, the in-mold probe is installed near the gate or runner of the mold core, the last cooling position, or the filling end.

[0010] Preferably, the amplifier is provided with multiple subsystems, each of which includes a capacitor-voltage conversion circuit and an analog-to-digital conversion circuit.

[0011] Preferably, the output signal of the amplifier is an RS485 signal.

[0012] Preferably, the collector includes a processor and a memory.

[0013] Preferably, the display device is a liquid crystal display.

[0014] Preferably, the out-of-mold connector is a LEMO connector, the cable is a coaxial double-layer shielded cable, and the in-mold probe is installed and fixed in the mold through a probe fixing nut.

[0015] Preferably, the system further comprises a keyboard, which is communicatively connected to the collector and is used for setting parameters of the collector.

[0016] The utility model provides an injection molding product in-mold online quality detection system, which collects the capacitance signal in the mold cavity of the injection mold through the in-mold sensor, and inputs it into the collector after converting it into a digital signal through the amplifier. The collector draws a real-time signal curve according to the mold opening and closing action signal of the injection molding machine and the capacitance signal of each stage collected during the injection molding process, compares the real-time signal curve with the reference signal, and outputs an alarm signal and an automatic sorting signal. The solution of the utility model has low manufacturing and installation costs of the sensor, strong applicability, rich monitoring content, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A block diagram of an in-mold online quality inspection system for injection molded products provided in an embodiment of the utility model.

[0018] Figure 2-4 A comparison chart of the real-time curve and the reference curve provided in the embodiment of the utility model.

[0019] Figure 5 A weight prediction schematic diagram provided for an embodiment of the utility model.

[0020] Figure 6 A schematic diagram of graphic sorting provided for one embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0022] like Figure 1 As shown, an embodiment of the utility model provides an online quality detection system for injection molded products, the system comprising a plurality of groups of in-mold sensors 1, amplifiers 2, collectors 3, injection molding machines 4, and display devices 5.

[0023] The in-mold sensor 1 includes an in-mold probe, a probe fixing nut, and an out-mold joint, wherein a capacitor sensor is arranged in the in-mold probe, the in-mold probe is installed and fixed in the mold through the probe fixing nut, the in-mold probe and the out-mold joint are fixedly connected through a cable, and the cable and the out-mold joint are located outside the mold; the in-mold sensor is used to collect melt signals in the mold cavity.

[0024] The capacitor sensor adopts a point electrode type capacitor sensor or a flat plate type capacitor sensor according to the structural characteristics of the product and the mold.

[0025] In some embodiments of the utility model, the mold cavity surface of the mold is relatively flat, and the capacitor sensor is a flat-plate capacitor sensor. Specifically, a stainless steel plate can be installed in the static mold to form one pole of a flat-plate capacitor, and form a flat-plate capacitor with the metal plate of the dynamic mold; or, a stainless steel plate can be installed in the dynamic mold to form a flat-plate capacitor with the metal plate in the static mold; or, stainless steel plates can be installed in the dynamic mold and the static mold respectively, and the two stainless steel plates can form a flat-plate capacitor relative to each other.

[0026] In some other embodiments of the utility model, the mold cavity surface of the mold is irregular, and the capacitor sensor is a point electrode type capacitor sensor, and the two electrodes of the point electrode type capacitor sensor are respectively located on the inner side of the dynamic mold and the static mold. For easy installation, the point electrode type capacitor sensor can also be designed into a cylindrical ejector shape to replace the ejector. In practical applications, it is necessary to design a suitable capacitor sensor and in-mold probe according to the shape of the mold. Compared with in-mold temperature and pressure sensors, the use of in-mold probe sensors has lower requirements for mold modification and is easier to install.

[0027] The capacitance value of the capacitor sensor is related to the dielectric constant of the medium between the two electrodes. During the injection molding process, as the injection stage progresses, when the plastic melt in the mold cavity is placed between the two electrodes, the plastic melt replaces the air medium as a medium, causing the capacitance value to increase. In addition, factors such as the material state, thickness, and mold temperature of the melt in the mold cavity will also affect the change in capacitance during the injection molding process. Therefore, compared with temperature and pressure sensors, capacitive sensors have stronger anti-interference capabilities and higher measurement sensitivity.

[0028] The installation position of the in-mold sensor 1 has a great influence on the measurement result, and the position where the problem is most likely to occur or the most important is usually selected as the installation position. In the embodiment of the utility model, the in-mold probe is installed near the gate or runner of the mold core, the last cooling position, and the filling end. When the in-mold probe is installed near the gate or runner, the flow of the melt can be obtained earlier, so the capacitance signal and flow information corresponding to the collected melt are richer. When the in-mold probe is installed at the filling end, once a short injection occurs, because the melt density and state are different from those in normal times during short injection, the signal collected by the capacitor sensor will show obvious differences, and the short injection situation can be intelligently identified and an alarm can be issued. When the in-mold probe is installed at the last cooling position, the start and end time of the cooling stage of the plastic product can be judged in real time through the change trend of the voltage signal collected by the in-mold probe. The solution of installing the in-mold sensor near the gate or runner, the last cooling position, and the filling end is particularly suitable for the production of molds with multiple gates and complex shapes.

[0029] The utility model has no particular restriction on the type of the off-mold joint. In some embodiments of the utility model, the off-mold joint is a LEMO joint. The LEMO joint adopts a push-pull connection, which is convenient for quick connection and disconnection, easy to operate, and ensures the stability of the connection.

[0030] The utility model has no particular limitation on the type of the cable. In some embodiments of the utility model, the cable is a coaxial cable. In other embodiments of the utility model, the cable is a coaxial double-layer shielded cable with a two-layer shielding structure to enhance the protection against electromagnetic interference, reduce signal leakage and external interference, and ensure high fidelity and stability of signal transmission.

[0031] Because the plastic melt injected into the mold during injection molding is high temperature, the in-mold probe needs to be designed to be resistant to high temperatures. In the embodiment of the utility model, the in-mold probe is made of high temperature resistant material and can withstand 300°C high temperature, and the cable between the in-mold probe and the external mold connector can withstand 130°C high temperature.

[0032] The amplifier 2 is arranged outside the mold, and the input end of the amplifier 2 is fixedly connected to the outside mold connector of the in-mold sensor 1. The amplifier 2 is provided with input ports corresponding to multiple groups of the in-mold sensors 1. The amplifier 2 is used to convert the capacitive signal collected by the in-mold sensor 1 into a digital signal.

[0033] In the embodiment of the utility model, each amplifier 2 can access the output signals of multiple in-mold sensors 1 to improve the parallel processing efficiency of the output signals of the in-mold sensors 1. In some embodiments of the utility model, each amplifier 2 is provided with 4-8 groups of input ports corresponding to the in-mold sensors 1, and can access the data of 4-8 in-mold sensors 1, and the data of the in-mold sensors 1 can come from one mold or multiple molds.

[0034] The amplifier 2 is provided with multiple subsystems, each of which includes a capacitor voltage conversion circuit and an analog-to-digital conversion circuit. The input end of the capacitor voltage conversion circuit is connected to the external connector of the in-module sensor 1, the output end of the capacitor voltage conversion circuit is connected to the input end of the analog-to-digital conversion circuit, and the output end of the analog-to-digital conversion circuit is connected to the input end of the collector 3. The capacitor voltage conversion circuit converts the capacitor signal into an analog voltage output, and the output voltage is linearly related to the capacitance; the analog-to-digital conversion circuit converts the analog voltage output by the capacitor voltage conversion circuit into a digital quantity and transmits it to the collector 3.

[0035] The utility model has no particular restrictions on the output signal type of the amplifier 2. In some embodiments of the utility model, the output signal of the amplifier is an RS485 signal. RS485 is a serial communication interface standard, which belongs to the protocol definition of the physical layer and is widely used in long-distance, multi-point communication systems in the fields of industrial sites, building automation, security systems, instrumentation communications, etc. RS485 uses differential signals to transmit digital data, which enhances the anti-interference ability and is suitable for use in industrial environments with large electrical noise.

[0036] The first input end of the collector 3 is communicatively connected to the output end of the amplifier 2, and the collector 3 is provided with a first input port corresponding to multiple groups of the amplifiers 2; the second input end of the collector 3 is communicatively connected to the injection molding machine 4, for receiving the signal output by the injection molding machine 4, and the signal includes a mold opening and closing signal and an injection signal; the first output end of the collector 3 is communicatively connected to the display device 5, for outputting a real-time signal curve and an alarm signal; the second output end of the collector 3 is communicatively connected to the manipulator, for outputting an automatic sorting signal; the collector 3 receives the signal collected by the in-mold sensor 1, processes the signal, draws a real-time signal curve, compares the real-time signal curve with the reference signal, and outputs an alarm signal and an automatic sorting signal.

[0037] In the embodiment of the utility model, each collector 3 can access the output signal of one or more amplifiers 2. In some embodiments of the utility model, each collector 3 is provided with 2 groups of input ports corresponding to the amplifiers 2, and each amplifier 2 is provided with 5 groups of input ports corresponding to the in-mold sensors 1, so each collector 3 can access the data of 10 in-mold sensors 1, and the data of the 10 in-mold sensors 1 can come from one or more molds. In other embodiments of the utility model, each collector 3 is provided with 1 group of input ports corresponding to the amplifier 2, and each amplifier 2 is provided with 8 groups of input ports corresponding to the in-mold sensors 1, so each collector 3 can access the data of 8 in-mold sensors 1, and the data of the 8 in-mold sensors 1 can come from one or more molds.

[0038] The collector 3 includes a processor, a memory, a power supply and an input and output port. In some embodiments of the utility model, the processor is an x86 series processor, which is arranged on an x86 motherboard. The collector 3 realizes the input port expansion function through an interface expansion card, and the interface expansion card provides 32 digital input ports. The processor is used to receive the data signal of the input port, process the input data signal, draw a real-time signal curve, predict the product quality, and output an alarm signal and an automatic sorting signal. Specifically, the collector 3 receives the output signal of the amplifier 2 through the DB9 serial port, receives the control signal or status signal of the injection molding machine 4 through the digital input port, outputs the real-time curve and the alarm signal to the display 5 through the interface such as VGA or HDMI, and outputs the automatic sorting signal to the manipulator through the second output terminal. In some embodiments of the utility model, the second output terminal adopts a serial port, such as RS232, RS485, RS422, etc., and the collector outputs the automatic sorting signal to the manipulator through the communication protocol supported by the manipulator.

[0039] In some embodiments of the present invention, the signal of the injection molding machine 4 received by the collector 3 includes a screw position scale signal, a mold opening valve signal, a mold closing valve signal, and an injection valve signal. In some embodiments of the present invention, the injection molding machine includes brands such as Haitian, Chen Hsong, Yizumi, Borch, and Lijin, and the signal collection of the injection molding machine is realized through serial ports, network ports, etc., based on Ethernet / IP, Modbus, RS485 and other protocols, and the collected injection molding machine signals are connected to the collector.

[0040] The collector 3 is also used to store the signals collected by the in-mold sensor 1 for analyzing and locating production problems. The signal capacity of the in-mold sensor 1 stored in the collector 3 is related to the capacity of the memory in the collector 3. In some embodiments of the utility model, the collector 3 can store 1000 mold data. In other embodiments of the utility model, the collector 3 can store 1500 mold data.

[0041] The present invention has no particular limitation on the collection frequency of the collector 3. In some embodiments of the present invention, the collection frequency of the collector 3 is 100 points / second. In other embodiments of the present invention, the collection frequency of the collector 3 is 1000 points / second.

[0042] The display device 5 is used to display the real-time signal curve drawn by the collector 3. In some embodiments of the present invention, the display device 5 is a liquid crystal display, and the liquid crystal display is connected to the collector 3 through an interface such as VGA or HDMI.

[0043] In some embodiments of the utility model, the system further includes a keyboard, which is connected to the collector 3 via a USB interface or an RS232 interface for setting parameters of the collector 3. In some embodiments of the utility model, a bracket is also designed for placing the collector 3, the keyboard and the display device 5, wherein the display device 5, the keyboard and the collector 3 are placed in order from top to bottom, the display device 5 is fixed to the bracket by a fixing device, and the keyboard and the collector 3 are placed on a dedicated tray.

[0044] The in-mold online quality inspection system for injection molded products provided by the embodiment of the utility model has the following functions:

[0045] (1) Calculation of mold opening and closing times.

[0046] (2) Calculation of the number of injections.

[0047] Because the collector 3 is connected to the mold opening and closing signals and injection signals of the injection molding machine 4, the mold opening and closing times and the injection times can be calculated, and displayed in real time through the display device 5. The manufacturer can maintain the injection molding equipment based on the mold opening and closing times and the injection times.

[0048] (3) Setting of standard curve and real-time comparison of curve changes.

[0049] During the mold closing stage, injection stage, pressure holding stage, cooling stage, and mold opening stage, the capacitance value shows different change trends due to the change in the dielectric constant of the medium between the two poles of the capacitor sensor. The state of the injection molding process can be monitored based on the voltage value output by the in-mold sensor, and the transition time point between adjacent stages can be determined by the time point of the capacitance value change.

[0050] The collector 3 can draw a variety of real-time curves according to the input signal, including the voltage-time curve of the capacitor sensor, the real-time position curve of the screw, and the weight prediction curve. The collector 3 refreshes the drawing area according to the mold opening and closing action signal of the injection molding machine 4.

[0051] The injection molding process is to inject the heated plastic melt into the mold cavity through the screw pressurization and shearing. The real-time position curve of the screw can be used to monitor whether the plastic melt continues to be injected into the mold cavity and determine whether the injection molding process is in the injection stage or the pressure holding stage.

[0052] Injection molding is a batch process. Through the voltage-time curve of the current module, the injection molding status can be monitored in real time. By comparing the voltage-time curves of different mold cavities, the injection molding status and product quality in each mold cavity can be monitored and compared in real time. Through the signal curves corresponding to different modules and the product detection conditions, the interval window of the curve can be fitted, that is, if the curve corresponding to the module of a batch is within the interval window, the product quality requirements are met, and if it exceeds the window, it is considered unqualified. In the embodiment of the utility model, a reference curve can be set for the standard process in the collector 3. In subsequent production, the collector 3 displays the real-time curve together with the reference curve, and the degree of deviation of the real-time curve from the reference curve can be manually observed in real time or automatically determined. By comparing with the reference curve, various production problems in the injection molding process can be found, such as changes in mold temperature and sudden changes in holding pressure due to long mold opening time, which will cause the real-time curve to deviate from the reference curve.

[0053] like Figure 2-4 The figure shows a comparison between the real-time curve and the reference curve in a certain production. The dark curve is the real-time voltage-time signal curve of the current injection process, and the light curve is the reference signal curve set under the standard process. Figure 2 In the figure, due to the long mold opening time, the mold temperature changed, which caused the cooling rate of the product to change and the dark curve deviated from the light curve. Figure 3 With continuous production, the mold temperature returned to normal, and the dark curve and the light curve overlapped again. Figure 4 In the figure, the dark curve moves upward compared to the light curve because of the increase in holding pressure.

[0054] (4) Product weight prediction.

[0055] The output voltage of the in-mold capacitance sensor increases gradually as the melt flows in during the injection stage. When the gate condenses, the output voltage of the in-mold capacitance sensor reaches its maximum value. By collecting the weight of multiple batches of products and the voltage difference before and after mold injection, a linear model of the product weight and the capacitance sensor voltage difference is established, and the product quality can be predicted based on the capacitance sensor voltage difference. Figure 5 The figure shows a weight prediction diagram provided by an embodiment of the utility model. When the product quality exceeds the preset range, an early warning is issued, and a sorting signal is generated to the robot, and the robot transfers the current product to the defective area.

[0056] (5) Graphics sorting.

[0057] Through repeated tests, the reference curves for the upper and lower limits of quality are determined, and an observation window is set to automatically compare the real-time curve within the observation window with the reference curve. When the real-time curve exceeds the upper and lower limits, an early warning is issued and an automatic sorting signal is output to the robot, which transfers the current product to the defective area. Figure 6 The figure shows a schematic diagram of graphic sorting provided by an embodiment of the utility model. When the real-time curve is located between the upper and lower limit reference curves, it means that the product meets the requirements. When it exceeds the upper and lower limits, an early warning is issued and an automatic sorting signal is output.

[0058] (6) Detect melt flow rate and solidification rate and optimize production parameters.

[0059] The collector 3 monitors the real-time melt flow rate and solidification rate by collecting the voltage value of the in-mold capacitance sensor, and draws a real-time curve to determine whether the melt flow rate is uniform and whether the cooling time is appropriate, and adjusts the injection and cooling parameters accordingly.

[0060] In actual application, the alarm signal of the collector 3 can be uploaded to the MES (Manufacturing Execution System) system in real time, so as to facilitate the centralized control of various production anomalies through the MES system.

[0061] In some embodiments of the present invention, the workflow of the injection molding product in-mold online quality inspection system is as follows:

[0062] (1) The mold opening and closing and injection signals are drawn from the injection molding machine 4 and connected to the collector 3 so that the collector 3 can automatically determine the working status of the injection molding machine.

[0063] (2) Set the parameters of collector 3 through the keyboard.

[0064] (3) The in-mold probe acquires the capacitance signal and transmits the capacitance signal to amplifier 2.

[0065] (4) Amplifier 2 converts the analog capacitance signal into an RS485 digital signal and sends it to collector 3.

[0066] (5) The collector 3 outputs a signal curve, and the display device 5 displays the signal curve in real time.

[0067] (6) The collector 3 compares the real-time signal with the upper and lower limit signals of the product weight or the reference curve set in advance, determines the product quality, outputs an alarm signal to the display device 5 and the MES system, and outputs an automatic sorting signal to the robot.

[0068] The utility model provides an in-mold online quality detection system for injection molded products. The in-mold sensor collects the capacitance signal in the mold cavity of the injection mold, and then converts it into a digital signal through an amplifier and inputs it into a collector. The collector draws a real-time signal curve based on the opening and closing mold action signal of the injection molding machine and the capacitance signal collected at each stage during the injection molding process, compares the real-time signal curve with the reference signal, and outputs an alarm signal and an automatic sorting signal. The solution of the utility model has low manufacturing and installation costs of the sensor, strong applicability, rich monitoring content, and strong practicality; it can judge the start and end time of each stage of the injection molding process in real time, and timely alarm production problems and automatically output sorting signals, which is conducive to improving production quality and production efficiency.

[0069] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms of deformation without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. An in-mold online quality inspection system for injection molded products, characterized in that: The system comprises a plurality of groups of in-mold sensors (1), amplifiers (2), collectors (3), injection molding machines (4), and display devices (5), wherein: The in-mold sensor (1) comprises an in-mold probe and an out-mold connector, wherein a capacitor sensor is arranged in the in-mold probe, the in-mold probe is installed and fixed in the mold, the in-mold probe and the out-mold connector are fixedly connected via a cable, and the cable and the out-mold connector are located outside the mold; the in-mold sensor (1) is used to collect melt signals in the mold cavity; The amplifier (2) is arranged outside the mold, the input end of the amplifier (2) is fixedly connected to the external mold connector, the amplifier (2) is provided with input ports corresponding to the plurality of groups of in-mold sensors (1), and the amplifier (2) is used to convert the capacitance signals collected by the in-mold sensors (1) into digital signals; The first input end of the collector (3) is communicatively connected to the output end of the amplifier (2), and the collector (3) is provided with one or more first input ports corresponding to the amplifier (2); the second input end of the collector (3) is communicatively connected to the injection molding machine (4) for receiving signals output by the injection molding machine (4), wherein the signals include mold opening and closing signals and injection signals; the first output end of the collector (3) is communicatively connected to the display device (5) for outputting real-time signal curves and alarm signals; the second output end of the collector (3) is communicatively connected to the robot for outputting automatic sorting signals; the collector (3) receives the signals collected by the in-mold sensor (1), processes the signals, draws real-time signal curves, compares the real-time signal curves with reference signals, and outputs alarm signals and automatic sorting signals.

2. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The capacitor sensor adopts a point electrode type capacitor sensor or a flat plate type capacitor sensor according to the structural characteristics of the product and the mold.

3. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The in-mold probe is installed near the gate or runner of the mold core, the last cooling position, and the filling end.

4. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The amplifier (2) is provided with multiple subsystems, each of which comprises a capacitance-voltage conversion circuit and an analog-to-digital conversion circuit.

5. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The output signal of the amplifier (2) is an RS485 signal.

6. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The collector (3) comprises a processor and a memory.

7. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The display device (5) is a liquid crystal display.

8. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The out-of-mold connector is a LEMO connector, the cable is a coaxial double-layer shielded cable, and the in-mold probe is fixed in the mold through a probe fixing nut.

9. The in-mold online quality inspection system for injection molded products according to claim 1, characterized in that: The system further comprises a keyboard, which is communicatively connected with the collector and is used for setting parameters of the collector.

Images