Electrical test detection device based on automatic mold

Abstract

The utility model relates to the technical field of electrical detection, in particular to an electrical test detection device based on an automatic mold, which comprises a movable detection machine, the detection machine comprises a shell, an operation surface is arranged at the upper end of the shell, and a display module and a setting module are arranged on the operation surface; a circuit interface is arranged at the rear end of the shell; a power supply unit, a control unit, an acquisition unit and a relay driving unit are integrated in the shell; the power unit is connected to the control unit, the input end of the acquisition unit is connected to the test die, and the output end of the acquisition unit is connected to the input end of the control unit. The output end of the control unit is connected to the relay driving unit, and the output end of the relay driving unit is connected to the test die. Comprehensive detection and debugging are carried out before the mold is on the production line, it is ensured that the mold can be directly put into production after being on line, through off-line detection, potential problems are checked in advance, secondary debugging on the production line is avoided, the production period is remarkably shortened, and the safety risk and the production cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing technology, specifically to an electrical testing and inspection device based on automated molds. Background Technology

[0002] Electrification testing of molds is a crucial step in ensuring mold quality and performance in manufacturing. It primarily checks the electrical system of the mold to ensure it is functioning correctly, including circuit connections, sensor response, and heating element functionality. However, traditional electrification testing typically requires performing the test on the production line after mold installation. If an anomaly is detected, the mold must be disassembled and replaced, which is not only cumbersome and time-consuming but also introduces significant safety risks and increased production costs.

[0003] In existing technologies, before mold installation, only external observation can provide a preliminary assessment of whether there are obvious defects in the mold, but it is impossible to effectively detect any abnormalities in the internal circuitry or other structural components. Therefore, the mold must be directly installed on the production line for testing. However, electrical testing on the production line requires suspending normal production processes, leading to decreased production efficiency. Furthermore, the complexity and time-consuming nature of the testing process significantly extends production line downtime, impacting overall production progress and delivery cycles. Secondly, the testing environment on the production line is complex, containing hazards such as high voltage and high temperatures, posing significant safety risks to operators and potentially causing personal injury or equipment damage. In addition, when abnormalities are detected in the mold, it must be replaced, increasing workload, making operations more cumbersome, further increasing production costs, and reducing production efficiency.

[0004] Therefore, in order to solve the problem that the existing mold electrical testing can only be carried out online, which leads to testing taking up production time, cumbersome testing and replacement operations, and affecting production efficiency, there is a need to provide an electrical testing and inspection device based on automated molds. Utility Model Content

[0005] The present invention aims to provide an electrical testing and inspection device based on automated molds, in order to solve the problems of low efficiency, cumbersome operation, time occupation, and potential safety risks in existing mold electrical testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides an electrical testing and inspection device based on automated molds. By integrating a set of testing equipment offline, it combines simulation and experimentation to achieve offline testing of mold electrification, ensuring accurate and comprehensive troubleshooting, avoiding secondary debugging after the mold is put on the production line, greatly reducing operational complexity, and improving testing and production efficiency. Specifically, it provides an electrical testing and inspection device based on automated molds, including a movable testing machine. The testing machine includes a housing with an operating surface at the top. The operating surface has a display module and a setting module. The display module includes multiple indicator lights arranged side by side on the top of the housing. The setting module includes multiple operating keys arranged side by side, and the operating keys are connected to the indicator lights via wiring. A wiring interface for communication with the test mold is provided at the rear end of the housing. A power supply unit, a control unit, a data acquisition unit, and a relay drive unit are integrated inside the housing. The output of the power supply unit is connected to the control unit, the input of the data acquisition unit is connected to the test mold, and the output of the data acquisition unit is connected to the input of the control unit. The output of the control unit is connected to the relay drive unit, and the output of the relay drive unit is connected to the test mold.

[0008] The principle and advantages of this scheme are:

[0009] This solution utilizes a mobile, offline mold simulation and material feeding testing device to perform comprehensive offline testing and debugging of the mold before it goes onto the production line. This ensures the mold can be directly put into production without secondary debugging or rework. The movable housing facilitates transport and operation, making it suitable for various testing scenarios and needs, and allowing placement in diverse testing environments, thus improving efficiency. Internally, it integrates a power supply unit, control unit, data acquisition unit, and relay drive unit to accurately simulate the actual production environment and monitor key parameters such as the mold's electrical performance, motion response, and positioning accuracy in real time, ensuring the precision and effectiveness of the testing. Offline testing allows for early detection of potential problems, avoiding secondary debugging on the production line, significantly shortening the production cycle, reducing safety risks and production costs. This not only improves mold reliability and production efficiency but also reduces downtime and rework rates, ultimately enhancing overall production efficiency.

[0010] Furthermore, the relay driving unit includes a relay with one end connected to the positive terminal of the power supply, and the other end of the relay connected to the collector of a transistor; the base of the transistor is connected to a first resistor R6, and the emitter of the transistor is grounded; the other end of the first resistor R6 is connected to a second resistor R7 and the output terminal of the control circuit respectively; the other end of the second resistor R7 is connected to the positive terminal of the power supply; a diode is connected in parallel across the two ends of the relay, and the cathode of the diode is connected to the positive terminal of the power supply; it also includes a mold material inspection switch with one end connected to the positive terminal of the power supply, and the other end of the mold material inspection switch is connected to the normally open contact of the relay; the other end of the normally open contact of the relay is connected to the display module.

[0011] Furthermore, the acquisition unit includes multiple sensors electrically connected to the test mold, a signal conditioning circuit, and a multiplexer; the input terminals of the multiplexer are respectively connected to the output terminals of each sensor; the output terminal of the multiplexer is connected to the signal conditioning circuit; the output terminal of the signal conditioning circuit is connected to the control unit; the sensors include a voltage sensor, a current sensor, a photoelectric sensor, and a resistance sensor connected by lines. The sensors acquire the mold's signal parameters in real time, and the photoelectric sensor confirms whether the mold is in place, while the material detection sensor confirms that the mold is in place.

[0012] Furthermore, the signal conditioning circuit includes an amplifier circuit, a filter circuit, and an isolation circuit connected in sequence. This ensures the accuracy and effectiveness of the acquired signal, reduces interference signals, improves signal processing quality, and reduces the amount of data processed.

[0013] Furthermore, the operation keys include a power button connected to the power supply unit, and start / stop buttons, mode selection buttons, and parameter setting buttons connected to the control unit. This makes operation simpler and faster, easier to learn, reduces the error rate, and ensures the accuracy and versatility of the detection operation.

[0014] Furthermore, the indicator lights include a power indicator, a running indicator, a mode indicator, a result indicator, and a fault indicator. This allows for a more intuitive understanding of the current operating status of the testing machine, and enables rapid acquisition of test results and the implementation of corresponding processing measures.

[0015] Furthermore, a baffle is provided on the top of the testing machine housing. This facilitates the placement of items or push-pull operations, making the operation more labor-saving and convenient.

[0016] Furthermore, the line interface includes a power interface, a signal interface, a communication interface, and a mold identification interface; the power interface is connected to the power supply unit; the signal interface is connected to the acquisition unit; the communication interface is connected to the control unit; and the mold identification interface is an RFID reader / writer located on the housing, which is connected to the control unit.

[0017] Furthermore, multiple casters are provided at the lower end of the housing. This facilitates movement and handling, making it more convenient and faster to use, and enabling its application in various testing scenarios with greater flexibility.

[0018] Furthermore, the housing is a cuboid with a height of 700-800mm, a width of 350-450mm, and a length of 580-650mm. This protects the internal structure, reduces corrosion and contamination, ensures adequate heat dissipation within the internal operating space, guarantees safe and stable operation, and facilitates placement and storage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the integrated circuit unit in this utility model;

[0021] Figure 3 This is a schematic diagram of the frame structure of the acquisition unit in this utility model;

[0022] Figure 4 This is a schematic diagram of the circuit structure of the relay driving unit in this utility model;

[0023] The markings in the accompanying drawings of the instruction manual include: 1. Testing machine, 2. Operating surface, 3. Baffle, 4. Display module, 5. Setting module, 6. Power supply unit, 7. Control unit, 8. Acquisition unit, 9. Relay drive unit, 10. Test mold, 11. Signal conditioning circuit, 12. Multiplexer, 13. Moving wheel. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] Example 1

[0026] This embodiment is basically as shown in the appendix. Figure 1As shown: An electrical testing and inspection device based on automated molds integrates a set of offline testing equipment to perform simulated material feeding tests on the molds before they go onto the production line. This achieves offline mold testing, ensuring the accuracy and comprehensiveness of the inspection, avoiding secondary debugging after the molds are on the production line, thus saving a significant amount of production time. It also avoids the safety risks associated with online testing, effectively reducing production costs. Specifically, the electrical testing and inspection device includes a movable testing machine 1. In this embodiment, the testing machine 1 includes a housing made entirely of metal, such as aluminum or steel. The housing is a cuboid with a height of 700-800mm, a width of 350-450mm, and a length of 580-650mm. Specifically, the height is set to 750mm, the width to 400mm, and the length to 620mm. The upper part of the housing has a trapezoidal cross-section, and the front of this trapezoidal structure is the operating surface 2, located at the top of the housing. This makes the operating surface 2 inclined, facilitating operation and inspection.

[0027] A rectangular baffle 3 is welded to the top of the housing of the testing machine 1, which facilitates the placement of items and movement, making operation more convenient and labor-saving. Multiple casters 13 are also installed at the bottom of the housing. In this embodiment, the casters 13 are four omnidirectional wheels, installed on the four bottoms of the housing, enabling the entire testing machine to be moved and transported, making operation more convenient and making the entire testing machine more flexible and compact, suitable for multiple testing scenarios and needs.

[0028] A display module 4 and a setting module 5 are installed on the upper part of the housing, i.e., the operation surface 2. The display module 4 includes multiple indicator lights arranged side-by-side on the top of the housing. The setting module 5 includes multiple operation keys arranged side-by-side, and the operation keys are connected to the indicator lights via wiring. A display screen for displaying information is also provided on the operation surface 2.

[0029] As attached Figure 2 As shown, the housing integrates a power supply unit 6, a control unit 7, a data acquisition unit 8, and a relay drive unit 9. In this embodiment, the power supply unit 6 provides a stable power supply for the entire system, with an input of 220V or 380V and an output of 5V, 12V, 24V, etc., which can be adjusted according to the required test scenario. The power supply unit 6 also includes overcurrent and overvoltage protection circuits to ensure the safety and stability of its operation. The overcurrent and overvoltage protection circuits can use existing circuit structures, which will not be described in detail here.

[0030] The output of power supply unit 6 is connected to control unit 7. In this embodiment, control unit 7 is responsible for control logic and signal processing. It can be a microcontroller such as STM32, Arduino, or PLC (such as Siemens S7-1200), and integrates ADC (analog-to-digital converter) and DAC (digital-to-analog converter) for processing analog signals. Control unit 7 also has EEPROM or Flash memory for storing test parameters and results.

[0031] In this embodiment, the input terminal of the acquisition unit 8 is connected to the test mold 10 to acquire the electrical signals of the test mold 10. The electrical signals may include voltage, current, resistance, etc., so as to accurately acquire the electrical signals of the test mold 10 and ensure the validity and comprehensiveness of the test results.

[0032] In this embodiment, the acquisition unit 8 includes multiple sensors electrically connected to the test mold, a signal conditioning circuit 11, and a multiplexer 12. The sensors include a voltage sensor, a current sensor, a photoelectric sensor, and a resistance sensor connected by lines, used to acquire voltage, current, resistance, or temperature signals from the test mold 10, respectively. The photoelectric sensor is electrically connected to a material detection module mounted on the slide table, used to detect whether the mold is properly positioned on the slide table. (See attached diagram) Figure 3 As shown, the input terminal of the multiplexer 12 is connected to the output terminal of each sensor, the output terminal of the multiplexer 12 is connected to the signal conditioning circuit 11, and the output terminal of the signal conditioning circuit 11 is connected to the control unit 7.

[0033] In this embodiment, the signal conditioning circuit 11 is used to amplify, filter, and isolate the signal output by the sensor to remove noise, ensure signal accuracy and stability, reduce interference signals, and ensure the accuracy and reliability of detection. The signal conditioning circuit 11 includes an amplification circuit, a filtering circuit, and an isolation circuit connected in sequence. The amplification circuit uses an operational amplifier (such as an LM324) to build a non-inverting or inverting amplification circuit, and its amplification factor is determined by the feedback resistor. The filtering circuit uses an RC low-pass filter to remove high-frequency noise, and the isolation circuit uses an optocoupler isolator (such as a PC817) to achieve electrical isolation.

[0034] The output of the acquisition unit 8 is connected to the input of the control unit 7; the output of the control unit 7 is connected to the relay drive unit 9, and the output of the relay drive unit 9 is connected to the test mold 10.

[0035] The relay drive unit 9 is used to control the on / off of the electrical path of the test mold 10, as shown in the attached diagram. Figure 4As shown, the system includes a relay with one end connected to the positive terminal of the power supply, and the other end of the relay connected to the collector of a transistor. The base of the transistor is connected to a first resistor R6, and the emitter of the transistor is grounded. The other end of the first resistor R6 is connected to a second resistor R7 and the output terminal of the control circuit. The other end of the second resistor R7 is connected to the positive terminal of the power supply VCC. A diode D4 is connected in parallel across the relay, with the cathode of diode D4 connected to the positive terminal of the power supply VCC. The system also includes a mold material inspection switch with one end connected to the positive terminal of the power supply, and the other end of the mold material inspection switch connected to the normally open contact of the relay. The other end of the normally open contact of the relay, i.e., OUTPUT, is connected to the display module 4.

[0036] In this embodiment, the operation keys include a power key connected to the power supply unit 6 to connect or disconnect the power supply, thereby starting or stopping the testing machine 1. The start / stop key, mode selection key, and parameter setting key are connected to the control unit 7. The start / stop key starts or stops the test, the mode selection key selects different test modes (such as manual mode and automatic mode), and the parameter setting key sets test parameters (such as voltage and current thresholds).

[0037] The indicator lights include a power light to indicate the power status; a running indicator light to indicate the device's operating status; a mode indicator light to display the currently selected test mode; a result indicator light to indicate the current test result, such as pass or failure; and a fault light to indicate a fault or abnormality. These different indicator lights allow operators to more intuitively and quickly understand the current operating status of the testing machine 1, facilitating faster operation and process monitoring, improving overall testing efficiency, and enabling timely intervention based on test results to ensure stable and safe testing. Simultaneously, the display screen shows the corresponding setting parameters and test data, allowing testing personnel to quickly obtain information and data.

[0038] In this embodiment, a wiring interface for communication with the test mold 10 is also provided at the rear end of the housing. This wiring interface includes a power interface, a signal interface, a communication interface, and a mold identification interface. The power interface is connected to the power supply unit 6 to provide operating power to the test mold, and can use aviation connectors such as the Y50 series or XK series. The signal interface is connected to the acquisition unit 8 to transmit electrical signals (such as voltage, current, and resistance) of the test mold, and can use aviation connectors such as the Y27 series. The communication interface is connected to the control unit 7 to enable communication between the test mold and the testing machine 1, and can use connectors such as DB9 or M12, Ethernet interfaces, or wireless interfaces. The mold identification interface is an RFID reader / writer located on the housing. The RFID reader / writer is connected to the control unit 7 via an SPI or I2C interface to read RFID tags on the mold to identify the mold's model or number. A DIP switch is provided on the corresponding mold for setting the mold code, and the DIP switch is connected to the control unit 7 via GPIO.

[0039] In this embodiment, a communication unit is also included. Through a wireless communication module such as Wi-Fi or Bluetooth installed in the testing machine 1, or an RS232, RS485, CAN or Ethernet interface, the testing machine 1 can communicate with a host computer or other devices to transmit testing information to a terminal or management terminal for backup, so as to facilitate information traceability or viewing.

[0040] Specific implementation process:

[0041] In this embodiment, before using the testing machine, it is necessary to check whether the power supply, interface and connection cable of the testing machine are intact, and check whether the electrical interface of the mold to be tested is compatible with the interface of the current testing machine, such as whether the model of the test insert is consistent.

[0042] Place the test mold on the slide, ensuring the mold is aligned with the slide's positioning pins, and confirm that the mold's material detection sensor has detected that the mold is in place. After verifying that everything is correct, move the testing machine near the mold to be tested. Connect the mold's connector to the testing machine's connector socket, ensuring the connector is fully inserted and locked, while simultaneously checking that the power, signal, and communication interface connections are secure.

[0043] Turn on the power of the testing machine and start the system. Access the parameter setting interface through setting module 5. Adjust the test parameters according to your testing needs using the parameter setting keys, such as setting the upper and lower limits of the mold working voltage (e.g., 22V-26V), the upper and lower limits of the mold working current (e.g., 1A-5A), the upper and lower limits of the mold resistance (e.g., 10Ω-100Ω), and the duration of a single test (e.g., 10 seconds). After confirming that the parameter settings are correct, save and exit the parameter setting interface.

[0044] Based on the current testing requirements, select the corresponding operation mode using the mode selection key, such as manual or automatic operation. During this process, RFID or a DIP switch is used to identify the mold number, and the testing machine will automatically read the mold number to verify whether the mold corresponds accurately.

[0045] Once the above operations are completed correctly, press the start / stop button to start the equipment and begin testing. The testing machine will first provide power to the test mold through power supply unit 6, and then precisely simulate the material feeding process on the production line through control unit 7. The acquisition unit 8 will collect key parameters such as voltage, current, and resistance signals of the test mold in real time, and convert the analog signals into digital signals through a high-speed ADC (analog-to-digital converter) for analysis by the control system. The collected signals will be compared with preset parameters to detect the mold's positioning accuracy, action response time, and electrical signal stability. The test result will be determined based on the comparison results. During the test, test data can be viewed through the display module. After the test is completed, the test results will be output through the display module, and the test data will be automatically stored or uploaded.

[0046] After the test is completed, press the start / stop button to turn off the testing machine, disconnect the test mold from the testing machine, turn off the power of the testing machine, tidy up the connecting cables and tools, and remove the testing machine.

[0047] In this embodiment, to achieve comprehensive testing and debugging of molds before they go on the production line, a novel offline mold simulation feeding and testing device is proposed. By integrating high-precision sensors, intelligent control modules, and multi-channel signal acquisition, it can simulate the actual production environment before the mold goes on the production line, conducting comprehensive electrical performance testing and functional verification. By detecting potential problems with the mold offline in advance, it ensures that the mold can be directly put into production after going online, thereby significantly improving production efficiency and reducing safety risks and production costs.

[0048] In this embodiment, standardized aviation plugs and industrial connectors are used to ensure rapid connection and disconnection between the mold and the testing equipment, improving testing efficiency. An integrated RFID or barcode identification module automatically reads the mold number and matches the corresponding test parameters, avoiding human error. By implementing offline testing, the safety threats to operators from the high pressure and high temperature environments of the production line are avoided. Offline testing significantly reduces production line downtime and mold debugging costs, while also preventing production delays caused by mold failures. It allows for early problem detection, reducing mold rework and scrap rates, further lowering production costs, and enabling rapid mold switching and testing to meet the needs of flexible production.

[0049] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An electrical testing and inspection device based on automated molds, characterized in that: The device includes a movable testing machine, comprising a housing with an operating surface at its upper end. The operating surface has a display module and a setting module. The display module includes multiple indicator lights arranged side-by-side on the top of the housing. The setting module includes multiple operating keys arranged side-by-side, which are connected to the indicator lights via wiring. A wiring interface for communication with a test mold is located at the rear end of the housing. A power supply unit, a control unit, a data acquisition unit, and a relay drive unit are integrated within the housing. The output of the power supply unit is connected to the control unit, the input of the data acquisition unit is connected to the test mold, and the output of the data acquisition unit is connected to the input of the control unit. The output of the control unit is connected to the relay drive unit, and the output of the relay drive unit is connected to the test mold.

2. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The relay driving unit includes a relay with one end connected to the positive terminal of the power supply, and the other end of the relay connected to the collector of a transistor; the base of the transistor is connected to a first resistor R6, and the emitter of the transistor is grounded; the other end of the first resistor R6 is connected to a second resistor R7 and the output terminal of the control circuit respectively; the other end of the second resistor R7 is connected to the positive terminal of the power supply; a diode is connected in parallel across the two ends of the relay, and the cathode of the diode is connected to the positive terminal of the power supply; it also includes a mold material inspection switch with one end connected to the positive terminal of the power supply, and the other end of the mold material inspection switch is connected to the normally open contact of the relay; the other end of the normally open contact of the relay is connected to the display module.

3. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The acquisition unit includes multiple sensors electrically connected to the test mold, a signal conditioning circuit, and a multiplexer; the input terminal of the multiplexer is connected to the output terminal of each sensor; the output terminal of the multiplexer is connected to the signal conditioning circuit; the output terminal of the signal conditioning circuit is connected to the control unit; the sensors include a voltage sensor, a current sensor, a photoelectric sensor, and a resistance sensor connected by lines.

4. The electrical testing and inspection device based on automated molds according to claim 3, characterized in that: The signal conditioning circuit includes an amplifier circuit, a filter circuit, and an isolation circuit connected in sequence.

5. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The operation keys include a power key connected to the power supply unit, and a start / stop key, a mode selection key, and a parameter setting key connected to the control unit.

6. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The indicator lights include a power indicator, a running indicator, a mode indicator, a result indicator, and a fault indicator.

7. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: A baffle is also provided on the top of the housing of the testing machine.

8. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The line interface includes a power interface, a signal interface, a communication interface, and a mold identification interface; the power interface is connected to the power supply unit; the signal interface is connected to the acquisition unit; the communication interface is connected to the control unit; the mold identification interface is an RFID reader / writer located on the housing, and the RFID reader / writer is connected to the control unit.

9. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: Multiple casters are provided at the lower end of the housing.

10. The electrical testing and inspection device based on automated molds according to claim 1, characterized in that: The shell is a cuboid shell with a height of 700-800mm, a width of 350-450mm, and a length of 580-650mm.

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