A signal relay circuit board for an injection molding robot and a connection method thereof

Abstract

This invention relates to the field of signal relay technology for injection molding robotic arms, and discloses a signal relay circuit board and its connection method for injection molding robotic arms. The signal relay circuit board includes a DB25 signal input terminal, a PCB circuit board, a 24V power supply terminal, and ZX-XH2.54 series pluggable terminals. The DB25 signal input terminal is electrically connected to the PCB circuit board. The PCB circuit board distributes 25 input signals to each of the ZX-XH2.54 series pluggable terminals through internal wiring. The 24V power supply terminal provides operating power. The ZX-XH2.54 series pluggable terminals include 2-pin, 3-pin, 4-pin, and 9-pin terminals. By centrally connecting 25 mixed signals to the circuit board through the DB25 signal input terminal, and integrating multiple signal outputs onto a single PCB board, unified access and classified distribution of 25 mixed signals are achieved, realizing a high degree of integration of electronic components.

Description

Technical Field

[0001] This invention relates to the field of signal relay technology for injection molding robotic arms, specifically to a signal relay circuit board for injection molding robotic arms and its connection method. Background Technology

[0002] As the core actuator of an automated injection molding production line, the injection molding robotic arm's electrical system includes multiple signals such as valve control signals, shaft origin signals, limit signals, main arm signals, auxiliary arm signals, and alarm signals.

[0003] Traditional electrical wiring methods for injection molding robotic arms often involve connecting individual wires one by one, which results in problems such as scattered wiring, cumbersome connection, low wiring efficiency, and a large workload. Dispersed wiring leads to messy wire harnesses and is prone to faults such as misconnection, omission, and loose connection. At the same time, there is no unified relay and distribution structure for multi-channel mixed signals, making signal transmission susceptible to interference. The overall integration and reliability of the electrical system are insufficient, which seriously affects the assembly efficiency and operational stability of the injection molding robotic arm. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a signal relay circuit board and its connection method for injection molding robotic arms. This solves the problems of traditional electrical wiring methods for injection molding robotic arms, which often use scattered wires to connect one by one. These methods result in scattered wiring, cumbersome connection, low wiring efficiency, and a large workload. Scattered wiring can lead to messy wire harnesses and is prone to faults such as misconnection, missing connection, and loose connection. At the same time, the lack of a unified relay and distribution structure for multi-channel mixed signals makes signal transmission susceptible to interference.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a signal relay circuit board for injection molding robotic arms, comprising a DB25 signal input terminal, a PCB circuit board, a 24V power supply terminal, and ZX-XH2.54 series pluggable terminals; The DB25 signal input terminal is electrically connected to the PCB circuit board. The PCB circuit board distributes the 25 input signals to each of the ZX-XH2.54 series plug-in terminals through internal wiring. The 24V power supply terminal is used to provide working power.

[0006] By adopting the above technical solution, 25 mixed signals are centrally connected to the circuit board through the DB25 signal input terminal, and multiple signal outputs are integrated on a single PCB board. This achieves unified access and classification of the 25 mixed signals, realizing a high degree of integration of electronic components, replacing traditional scattered direct connections, greatly simplifying the electrical wiring of the injection molding robotic arm, reducing installation space, and using ZX-XH2.54 series 2Pin / 3Pin / 4Pin / 9Pin standardized plug-in terminals to correspond to functional areas such as valve control, position detection, main and auxiliary arms, and alarms. The wiring is standardized and easy to plug and unplug, reducing the wiring error rate and making subsequent maintenance and component replacement more efficient. The PCB adopts a multi-layer wiring structure, with independent wiring and isolation for valve control circuits, position detection circuits, main arm signal circuits, auxiliary arm signal circuits, and alarm circuits, avoiding mutual interference between multiple types of signals, ensuring stable signal transmission, and improving the operating accuracy and reliability of the robotic arm.

[0007] Preferably, the ZX-XH2.54 series plug-in terminals include 2-pin terminals, 3-pin terminals, 4-pin terminals, and 9-pin terminals, each corresponding to different functional signal outputs.

[0008] Preferably, the 2-pin terminal is used to connect suction valve 1, suction valve 2, horizontal valve / suction valve 3, alarm sound, auxiliary clamp valve, scissor valve, and clamp valve 4.

[0009] Preferably, the 3-pin terminal is used to connect the Z-axis origin, Z-axis object placement, X1 origin, Y1 origin, X2 origin / clamp 3, Y2 origin / 4 limit, and secondary clamp limit / suction limit position detection signals.

[0010] Preferably, the 9-pin terminal is used to output the main arm side posture signal, and the 4-pin terminal is used to output the auxiliary arm signal.

[0011] Preferably, the PCB circuit board integrates valve control signals, shaft origin / limit signals, main arm signals, auxiliary arm signals, and alarm signals for integrated relay switching of the injection molding robot's electrical system.

[0012] Preferably, the PCB circuit board has a multi-layer wiring structure.

[0013] A method for connecting a signal relay circuit board for an injection molding robotic arm includes the following steps: The controller outputs 25 control signals and feedback signals, which are centrally connected to the circuit board through the DB25 signal input terminal. An external 24V power supply is connected to the PCB board through the power terminal to power the circuit board and external devices. After the 25 mixed signals enter the PCB circuit board, they are automatically split according to function through internal multi-layer wiring to form valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit and alarm circuit, and are isolated by wiring. The valve control signal, after being shunt by the PCB, is output externally through the ZX-XH2.54 series standardized pluggable terminals to drive the actuators and detection elements for motion control and status detection. The position feedback signal from the sensor in the detection element flows back to the PCB through the corresponding terminal, and then is transmitted back to the controller through the DB25 signal input terminal; When an abnormality occurs, the controller outputs an alarm signal, which drives the alarm sound terminal via the PCB alarm circuit. An external buzzer or alarm device then issues a prompt, providing real-time fault alerts.

[0014] Preferably, the actuator includes a solenoid valve, suction valve 1, suction valve 2, horizontal valve, auxiliary clamp valve, and scissor valve.

[0015] Preferably, the detection elements include origin sensors and limit sensors for the Z-axis, X1-axis, Y1-axis, X2-axis, and Y2-axis.

[0016] This invention provides a signal relay circuit board for an injection molding robotic arm and its connection method. It has the following advantages: 1. This invention integrates 25 mixed signals into a single PCB board via DB25 signal input terminals, achieving unified access and classification of the 25 mixed signals. This high level of integration of electronic components replaces traditional loose wire connections, greatly simplifies the electrical wiring of injection molding robotic arms, reduces installation space, and adopts ZX-XH2.54 series 2Pin / 3Pin / 4Pin / 9Pin standardized plug-in terminals, corresponding to functional zones such as valve control, position detection, main and auxiliary arms, and alarms. The wiring is standardized, plugging and unplugging is convenient, reducing the wiring error rate and making subsequent maintenance and component replacement more efficient.

[0017] 2. In this invention, the PCB circuit board adopts a multi-layer wiring structure, and the valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit and alarm circuit are independently wired and isolated to avoid mutual interference of multiple types of signals, ensure stable signal transmission, and improve the operating accuracy and reliability of the robotic arm.

[0018] 3. The present invention provides a PCB circuit board that supports mass production and automated production, reduces human error and waste, improves efficiency, and the magnetic integration technology can also simplify the assembly process, promote automation, thereby reducing the overall production cost. The circuit board has a clear structure and clear component connections. When a fault occurs, it can be replaced or repaired in a targeted manner without the need for overall reconstruction. At the same time, the function can be upgraded by adding or removing components. Attached Figure Description

[0019] Figure 1 The circuit diagram of the signal relay circuit board for the injection molding robotic arm; Figure 2This is a PCB layout diagram of the signal relay circuit board for an injection molding robotic arm. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 - Appendix Figure 2 This invention provides a signal relay circuit board for injection molding robotic arms, including a DB25 signal input terminal, a PCB circuit board, a 24V power supply terminal, and ZX-XH2.54 series pluggable terminals; The DB25 signal input terminal is electrically connected to the PCB circuit board. The PCB circuit board distributes the 25 input signals to each ZX-XH2.54 series pluggable terminal through internal wiring. The 24V power supply terminal is used to provide working power.

[0022] Specifically, the 25 control signals and feedback signals output by the controller are centrally connected to the circuit board through the DB25 signal input terminal, and the external 24V power supply is connected to the PCB board through the power terminal to power the entire circuit board and external devices. After the 25 mixed signals enter the PCB circuit board, they are automatically split according to function through internal multi-layer wiring to form valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit and alarm circuit. Each circuit is isolated from each other to reduce interference. The valve control signal after being split by the PCB is output to the outside through the ZX-XH2.54 series standardized plug-in terminals to drive the actuators and detection elements to realize motion control and status detection. The position feedback signal of the sensor in the detection element flows back to the PCB through the corresponding terminal, and then is transmitted back to the controller through the DB25 signal input terminal to form a closed-loop signal transmission. By centrally connecting 25 mixed signals to the circuit board through the DB25 signal input terminal, and integrating multiple types of signal outputs onto a single PCB board, the unified access and classification of 25 mixed signals are achieved, realizing a high degree of integration of electronic components. This replaces the traditional scattered direct connection, greatly simplifies the electrical wiring of the injection molding robotic arm, reduces installation space, and adopts ZX-XH2.54 series 2Pin / 3Pin / 4Pin / 9Pin standardized plug-in terminals, corresponding to functional areas such as valve control, position detection, main and auxiliary arms, and alarms. The wiring is standardized, plugging and unplugging is convenient, reducing the wiring error rate and making subsequent maintenance and component replacement more efficient. The PCB circuit board adopts a multi-layer wiring structure, with independent wiring and isolation for the valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit, and alarm circuit. This avoids mutual interference between different types of signals, ensures stable signal transmission, and improves the operating accuracy and reliability of the robotic arm.

[0023] Please see the appendix Figure 1 - Appendix Figure 2 The ZX-XH2.54 series of plug-in terminals includes 2-pin terminals, 3-pin terminals, 4-pin terminals, and 9-pin terminals, each corresponding to different functional signal outputs.

[0024] Specifically, the valve control signal after PCB diversion is output externally through the ZX-XH2.54 series standardized plug-in terminals to drive the actuators and detection elements, realizing action control and status detection. The position feedback signal of the sensor in the detection element flows back to the PCB through the corresponding terminal, and then back to the controller through the DB25 signal input terminal, forming a closed-loop signal transmission. When an abnormality occurs, the controller outputs an alarm signal, which drives the alarm sound terminal through the PCB alarm circuit, and an external buzzer or alarm device is connected to issue a prompt, realizing real-time fault reminder.

[0025] Please see the appendix Figure 1 - Appendix Figure 2 The 2-pin terminal is used to connect to suction valve 1, suction valve 2, horizontal valve / suction valve 3, alarm sound, auxiliary clamp valve, scissor valve, and clamp valve 4. The 3-pin terminal is used to connect to the Z-axis origin, Z-axis placement, X1 origin, Y1 origin, X2 origin / clamp 3, Y2 origin / 4 limit, and auxiliary clamp limit / suction 3 limit position detection signals. The 9-pin terminal is used to output the main arm side posture signal, and the 4-pin terminal is used to output the auxiliary arm signal.

[0026] Specifically, the valve control output signal, position detection input signal, main arm signal, and auxiliary arm signal are connected to different pin terminals in separate areas to achieve separation of strong and weak currents, input and output, and control and detection, thereby reducing signal crosstalk and electromagnetic interference and improving system stability. Different functional signals use different pin numbers of terminals, and can only be plugged into the corresponding interfaces on site. It is impossible to plug into the wrong port or reverse the connection, thus avoiding manual wiring errors from the structure.

[0027] Please see the appendix Figure 1 - Appendix Figure 2 The PCB circuit board integrates valve control signals, shaft origin / limit signals, main arm signals, auxiliary arm signals, and alarm signals. It is used as an integrated relay for the electrical system of the injection molding robotic arm. The PCB circuit board has a multi-layer wiring structure.

[0028] Specifically, valve control signals, shaft origin / limit signals, main arm signals, auxiliary arm signals, and alarm signals are all integrated on a single PCB for conversion, replacing traditional distributed terminal blocks and messy wire harnesses. This results in a smaller size, a more compact layout, and suitability for side / rear mounting requirements of injection molding robotic arms. The PCB circuit board adopts a multi-layer wiring structure, which can isolate input signals from output signals, high voltage from low voltage, and control signals from detection signals, reducing signal crosstalk, electromagnetic interference and signal attenuation, making the robot arm run more stably and its movements more reliable.

[0029] A method for connecting a signal relay circuit board for an injection molding robotic arm includes the following steps: The controller outputs 25 control signals and feedback signals, which are centrally connected to the circuit board through the DB25 signal input terminal. An external 24V power supply is connected to the PCB board through the power terminal to power the circuit board and external devices. After the 25 mixed signals enter the PCB circuit board, they are automatically split according to function through internal multi-layer wiring to form valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit and alarm circuit, and are isolated by wiring. The valve control signal, after being shunt by the PCB, is output externally through the ZX-XH2.54 series standardized pluggable terminals to drive the actuators and detection elements for motion control and status detection. The actuators include solenoid valves, suction valve 1, suction valve 2, horizontal valve, auxiliary clamp valve, and scissor valve; the detection elements include origin sensors and limit sensors for the Z-axis, X1-axis, Y1-axis, X2-axis, and Y2-axis. The position feedback signal from the sensor in the detection element flows back to the PCB through the corresponding terminal, and then is transmitted back to the controller through the DB25 signal input terminal; When an abnormality occurs, the controller outputs an alarm signal, which drives the alarm sound terminal via the PCB alarm circuit. An external buzzer or alarm device then issues a prompt, providing real-time fault alerts.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A signal relay circuit board for an injection molding robotic arm, characterized in that: Includes DB25 signal input terminals, PCB circuit board, 24V power supply terminals, and ZX-XH2.54 series pluggable terminals; The DB25 signal input terminal is electrically connected to the PCB circuit board. The PCB circuit board distributes the 25 input signals to each of the ZX-XH2.54 series plug-in terminals through internal wiring. The 24V power supply terminal is used to provide working power.

2. The signal relay circuit board for an injection molding robotic arm according to claim 1, characterized in that: The ZX-XH2.54 series of pluggable terminals includes 2-pin terminals, 3-pin terminals, 4-pin terminals, and 9-pin terminals, each corresponding to different functional signal outputs.

3. The signal relay circuit board for an injection molding robotic arm according to claim 2, characterized in that: The 2-pin terminal is used to connect suction valve 1, suction valve 2, horizontal valve / suction valve 3, alarm sound, auxiliary clamp valve, scissor valve, and clamp valve 4.

4. A signal relay circuit board for an injection molding robotic arm according to claim 2, characterized in that: The 3-pin terminal is used to connect the Z-axis origin, Z-axis object placement, X1 origin, Y1 origin, X2 origin / clamp 3, Y2 origin / 4 limit, and secondary clamp limit / suction limit position detection signals.

5. A signal relay circuit board for an injection molding robotic arm according to claim 2, characterized in that: The 9-pin terminal is used to output the main arm side posture signal, and the 4-pin terminal is used to output the auxiliary arm signal.

6. A signal relay circuit board for an injection molding robotic arm according to claim 1, characterized in that: The PCB circuit board integrates valve control signals, shaft origin / limit signals, main arm signals, auxiliary arm signals, and alarm signals, and is used for integrated relay switching of the electrical system of the injection molding robotic arm.

7. A signal relay circuit board for an injection molding robotic arm according to claim 1, characterized in that: The PCB circuit board has a multi-layer wiring structure.

8. A method for connecting a signal relay circuit board for an injection molding robotic arm, characterized in that: The application of a signal relay circuit board for an injection molding robotic arm as described in any one of claims 1-7 includes the following steps: The controller outputs 25 control signals and feedback signals, which are centrally connected to the circuit board through the DB25 signal input terminal. An external 24V power supply is connected to the PCB board through the power terminal to power the circuit board and external devices. After the 25 mixed signals enter the PCB circuit board, they are automatically split according to function through internal multi-layer wiring to form valve control circuit, position detection circuit, main arm signal circuit, auxiliary arm signal circuit and alarm circuit, and are isolated by wiring. The valve control signal, after being shunt by the PCB, is output externally through the ZX-XH2.54 series standardized pluggable terminals to drive the actuators and detection elements for motion control and status detection. The position feedback signal from the sensor in the detection element flows back to the PCB through the corresponding terminal, and then is transmitted back to the controller through the DB25 signal input terminal; When an abnormality occurs, the controller outputs an alarm signal, which drives the alarm sound terminal via the PCB alarm circuit. An external buzzer or alarm device then issues a prompt, providing real-time fault alerts.

9. A connection method for a signal relay circuit board for an injection molding robotic arm according to claim 8, characterized in that: The actuators include a solenoid valve, suction valve 1, suction valve 2, horizontal valve, auxiliary clamp valve, and scissor valve.

10. A connection method for a signal relay circuit board for an injection molding robotic arm according to claim 8, characterized in that: The detection elements include origin sensors and limit sensors for the Z-axis, X1-axis, Y1-axis, X2-axis, and Y2-axis.

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