A device for detecting open circuit and leakage current in a hot runner system

Abstract

This utility model discloses a device for detecting open circuits and leakage current in a hot runner system. The hot runner system includes several hot runner heaters, each of which integrates an open circuit detection module and a leakage current detection module. The device includes a detection box, with a controller installed inside. The outer surface of the box has a first interface, a second interface, and several LED indicator lights, all electrically connected to the controller. The output terminals of the open circuit detection modules of each hot runner heater are electrically connected to the first interface, and the output terminals of the leakage current detection modules of each hot runner heater are electrically connected to the second interface. This utility model can simultaneously detect open circuits and leakage current in multiple hot runner heaters within a hot runner system, enabling efficient, rapid, and accurate identification of abnormal hot runner heaters, thereby effectively improving the maintenance efficiency of the hot runner system.

Description

Technical Field

[0001] This utility model relates to the field of hot runner system technology, and in particular to a hot runner system open circuit leakage detection device. Background Technology

[0002] When using hot runner molds for molding processes, multiple hot runner heaters are required to heat the mold and ensure molding quality. The operating status of the hot runner heaters is particularly important for the molding process; in particular, if a hot runner heater experiences a circuit break, it will be unable to heat properly, causing abnormal local temperatures in the hot runner mold and thus affecting molding quality. Furthermore, if a hot runner heater leaks electricity, the hot runner mold will pose a safety hazard and potentially damage the equipment due to the risk of electrical leakage.

[0003] In the existing technology, when a hot runner heater in a hot runner system experiences a wire break or leakage abnormality, the staff needs to sequentially perform wire break or leakage detection on multiple hot runner heaters in the hot runner system in order to accurately determine the specific hot runner heater that is abnormal and perform corresponding maintenance operations. The entire detection process is time-consuming and will affect the molding and processing efficiency.

[0004] In view of the above, it is necessary to develop a hot runner system open circuit leakage detection device to detect open circuit leakage of multiple hot runner heaters in the hot runner system. Utility Model Content

[0005] The purpose of this invention is to provide a hot runner system open circuit and leakage detection device to address the shortcomings of existing technologies. This device can simultaneously detect open circuits and leakage in multiple hot runner heaters in a hot runner system, thus efficiently, quickly, and accurately identifying abnormal hot runner heaters and effectively improving the maintenance efficiency of the hot runner system.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] A device for detecting open circuit and leakage current in a hot runner system, the hot runner system including a plurality of hot runner heaters installed in a hot runner mold;

[0008] Each hot runner heater is equipped with a wire breakage detection module and a leakage current detection module.

[0009] The hot runner system open circuit leakage detection device includes a detection box, which includes a box body and a controller installed inside the box body. The outer surface of the box body is equipped with a first interface, a second interface and several LED indicator lights. The first interface, the second interface and each LED indicator light are electrically connected to the controller.

[0010] The output terminal of the wire breakage detection module of each hot runner heater is electrically connected to the first interface, and the output terminal of the leakage current detection module of each hot runner heater is electrically connected to the second interface.

[0011] The disconnection detection module is a current monitoring circuit. The output of the current monitoring circuit is electrically connected to the first interface via a signal line, and the input of the current monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater.

[0012] The disconnection detection module is a resistance monitoring circuit. The output of the resistance monitoring circuit is electrically connected to the first interface via a signal line, and the input of the resistance monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater.

[0013] The leakage current detection module is a leakage current detection circuit.

[0014] The hot runner system includes 12 hot runner heaters, and the outer surface of the detection box is equipped with 12 LED indicator lights arranged in an array.

[0015] Compared with the prior art, the present invention has the following advantages: Specifically, the present invention can simultaneously detect the disconnection and leakage of multiple hot runner heaters in a hot runner system, and intuitively display the working status of the hot runner heaters through LED indicator lights; when a hot runner heater has a disconnection or leakage fault, the present invention can efficiently, quickly and accurately identify the abnormal hot runner heater, thus facilitating users to quickly maintain the corresponding faulty hot runner heater, thereby effectively improving the maintenance efficiency of the hot runner system. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0017] Figure 1 This is a schematic diagram of the detection box of this utility model.

[0018] Figure 2 This is a schematic diagram of the principle of this utility model.

[0019] Figure 3 This is a schematic diagram showing the electrical connection between the controller, the hot runner heater, and the LED indicator of this utility model.

[0020] exist Figures 1 to 3 This includes:

[0021] 1-Wire breakage detection module; 2-Leakage detection module; 3-Detection box; 31-Box body; 4-Controller; 5-First interface; 6-Second interface; 7-LED indicator light. Detailed Implementation

[0022] The present invention will now be described in conjunction with specific embodiments.

[0023] A device for detecting electrical leakage in a hot runner system, the hot runner system comprising a plurality of hot runner heaters installed in a hot runner mold.

[0024] Among them, such as Figure 2 As shown, each hot runner heater integrates a wire breakage detection module 1 and a leakage current detection module 2.

[0025] Furthermore, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the hot runner system open circuit leakage detection device includes a detection box 3. The detection box 3 includes a box body 31 and a controller 4 installed inside the box body 31. The outer surface of the box body 31 is equipped with a first interface 5, a second interface 6 and several LED indicator lights 7. The first interface 5, the second interface 6 and each LED indicator light 7 are electrically connected to the controller 4.

[0026] Furthermore, such as Figure 2 and Figure 3 As shown, the output terminal of the wire breakage detection module 1 of each hot runner heater is electrically connected to the first interface 5, and the output terminal of the leakage current detection module 2 of each hot runner heater is electrically connected to the second interface 6.

[0027] It should be noted that the hot runner system includes 12 hot runner heaters, and the outer surface of the housing 31 of the detection box 3 is equipped with 12 LED indicator lights 7 arranged in an array. Each hot runner heater corresponds to one LED indicator light 7. When the LED indicator lights 7 visually display the detection results of the corresponding hot runner heater to the user, the LED indicator lights 7 can display the corresponding detection results through different display states. Specifically: when the LED indicator light 7 is solid green, it indicates that the corresponding hot runner heater is normal and there is no open circuit or leakage; when the LED indicator light 7 is flashing red, it indicates that the corresponding hot runner heater has an open circuit; when the LED indicator light 7 is flashing yellow, it indicates that the corresponding hot runner heater has a leakage.

[0028] It should be explained that the leakage current detection module 2 is a leakage current detection circuit; the leakage current detection circuit is already existing technology and will not be described in detail here.

[0029] It should be further explained that the disconnection detection module 1 is a current monitoring circuit. The output terminal of the current monitoring circuit is electrically connected to the first interface 5 via a signal line, and the input terminal of the current monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater. Alternatively, the disconnection detection module 1 is a resistance monitoring circuit. The output terminal of the resistance monitoring circuit is electrically connected to the first interface 5 via a signal line, and the input terminal of the resistance monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater. The aforementioned current monitoring circuit and resistance monitoring circuit are existing technologies and will not be described in detail here.

[0030] When the hot runner system disconnection and leakage current detection device of this utility model realizes the disconnection detection function, the disconnection detection module 1 integrated in the hot runner heater performs current or resistance detection on the power supply line of the hot runner heater, and the disconnection detection module 1 sends the acquired current signal or resistance signal to the controller 4 in real time through the first interface 5. The controller 4 compares and analyzes the acquired current signal or resistance signal to determine whether the detected current value or resistance value exceeds the normal disconnection threshold range. Once it exceeds the normal disconnection threshold range, it is determined that the hot runner heater has a disconnection fault.

[0031] When using the hot runner system open circuit leakage detection device of this utility model to realize the leakage detection function, the leakage detection module 2 integrated in the hot runner heater measures the leakage of the hot runner heater. The leakage detection module 2 can acquire the leakage current of the hot runner heater and send the leakage current signal to the controller 4 in real time through the second interface 6. The controller 4 compares and analyzes the acquired leakage current signal to determine whether the leakage current value exceeds the normal open circuit threshold range. Once it exceeds the normal open circuit threshold range, it is determined that the hot runner heater has a leakage fault.

[0032] In summary, the hot runner system disconnection and leakage detection device of this invention can simultaneously detect disconnections and leakage in multiple hot runner heaters in the hot runner system, and intuitively display the working status of the hot runner heater through the corresponding LED indicator 7. When a hot runner heater experiences a disconnection or leakage fault, this invention can efficiently, quickly, and accurately identify the abnormal hot runner heater, thus facilitating users to quickly maintain the corresponding faulty hot runner heater and effectively improving the maintenance efficiency of the hot runner system.

[0033] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for detecting open circuit and leakage current in a hot runner system, the hot runner system comprising a plurality of hot runner heaters installed in a hot runner mold; characterized in that Each hot runner heater is equipped with a wire breakage detection module (1) and a leakage current detection module (2). The hot runner system open circuit leakage detection device includes a detection box (3), the detection box (3) includes a box body (31) and a controller (4) installed inside the box body (31). The outer surface of the box body (31) is equipped with a first interface (5), a second interface (6) and several LED indicator lights (7). The first interface (5), the second interface (6) and each LED indicator light (7) are electrically connected to the controller (4). The output terminals of the wire breakage detection module (1) of each hot runner heater are electrically connected to the first interface (5), and the output terminals of the leakage current detection module (2) of each hot runner heater are electrically connected to the second interface (6).

2. The hot runner system broken wire and electric leakage detection device according to claim 1, characterized in that: The disconnection detection module (1) is a current monitoring circuit. The output terminal of the current monitoring circuit is electrically connected to the first interface (5) through a signal line, and the input terminal of the current monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater.

3. The hot runner system open circuit leakage detection device according to claim 1, characterized in that: The disconnection detection module (1) is a resistance monitoring circuit. The output terminal of the resistance monitoring circuit is electrically connected to the first interface (5) through a signal line, and the input terminal of the resistance monitoring circuit is electrically connected to the power supply line of the corresponding hot runner heater.

4. The hot runner system open circuit leakage detection device according to claim 1, characterized in that: The leakage current detection module (2) is a leakage current detection circuit.

5. The hot runner system open circuit leakage detection device according to claim 1, characterized in that: The hot runner system includes 12 hot runner heaters, and the outer surface of the housing (31) of the detection box (3) is equipped with 12 LED indicator lights (7) arranged in an array.

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