A sock moving sensing system of a sock weaving integrated machine

Abstract

The utility model discloses a kind of sock moving sensing systems of integrated machine for weaving socks, it is related to sock production equipment technical field, including infrared transmitting unit and infrared receiving unit, the infrared transmitting unit is oppositely arranged with infrared receiving unit, for passing through infrared signal detection shelter;The infrared transmitting unit includes power input circuit, filter circuit, voltage stabilizing circuit, control circuit, display circuit, mode selection circuit and infrared transmitting circuit, each circuit is sequentially connected;The filter circuit is π type filter circuit, connect between power input circuit and voltage stabilizing circuit, for inhibiting high-frequency noise.The utility model realizes accurate detection by digital waveform technology.The device includes infrared transmitting unit and infrared receiving unit, wherein infrared transmitting unit sends digital waveform, and infrared receiving unit decodes waveform to judge shelter existence.

Description

Technical Field

[0001] This utility model relates to the field of sock production equipment technology, specifically to a sock-shifting sensing system for an integrated sock knitting machine. Background Technology

[0002] In a hosiery knitting machine, after knitting, the socks are removed from the sock tube and sent to the toe area for sewing. This process requires determining whether the sock has been completely removed from the sock tube, which necessitates a sensing device. Currently, infrared sensors are used. However, because hosiery knitting machines use many stepper motors, they are susceptible to interference from the sensors, resulting in high false alarm rates and high damage rates. This directly impacts sock production and is no longer suitable for market demands. The existing infrared sensors are easily interfered with by stepper motors during sock production, leading to a high false alarm rate. This invention aims to provide a highly stable and interference-resistant sock-moving sensing device. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a sock-shifting sensing system for an integrated sock knitting machine, which achieves accurate detection through digital waveform technology. The device includes an infrared transmitting unit and an infrared receiving unit, wherein the infrared transmitting unit transmits digital waveforms, and the infrared receiving unit decodes the waveforms to determine the presence of an obstruction.

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] A sock-shifting sensing system for an integrated sock knitting machine includes an infrared emitting unit and an infrared receiving unit, wherein the infrared emitting unit and the infrared receiving unit are arranged opposite to each other and are used to detect obstructions through infrared signals.

[0006] The infrared emitting unit includes a power input circuit, a filter circuit, a voltage regulator circuit, a control circuit, a display circuit, a mode selection circuit, and an infrared transmitting circuit, which are connected in sequence.

[0007] The filter circuit is a π-type filter circuit, connected between the power input circuit and the voltage regulator circuit, and is used to suppress high-frequency noise.

[0008] The basic components of the device are defined, namely the relative arrangement of the infrared emitting unit and the infrared receiving unit. This structure realizes the core function of non-contact obstruction detection, providing the basic framework for the entire solution and ensuring that the device can reliably identify the presence of objects such as socks through infrared signals, thereby supporting the automated process of the sock knitting machine. The internal circuit connection of the infrared emitting unit is refined. Through the sequential connection of power input, filtering, voltage regulation, control, display, mode selection, and infrared transmission circuit, the stability and controllability of signal transmission are ensured. This structure provides a complete power management and signal processing chain, enabling the emitting unit to adapt to different operating modes and improving the adaptability and reliability of the device. The filtering circuit is specified as a π-type filter circuit, connected between the power input and the voltage regulation circuit. Its function is to suppress high-frequency noise and interference in the power supply, prevent noise from affecting subsequent circuits, thereby improving signal quality and the device's anti-interference capability, and ensuring the stability of infrared transmission.

[0009] Optionally, the voltage regulator circuit includes a first LDO voltage regulator circuit and a second LDO voltage regulator circuit. The first LDO voltage regulator circuit outputs a 5V voltage, and the second LDO voltage regulator circuit outputs a 3.3V voltage, which power the control circuit and the display circuit, respectively.

[0010] The voltage regulator circuit comprises two LDO regulators, outputting 5V and 3.3V respectively to power the control and display circuits. This structure provides precise voltage distribution, ensuring each circuit module operates at its rated voltage, preventing damage from overvoltage or undervoltage, and enhancing the device's power management efficiency and safety.

[0011] Alternatively, the control circuit is a microcontroller unit connected to a display circuit, a mode selection circuit, and an infrared transmitting circuit, used for controlling signal transmission and status display.

[0012] The control circuit is defined as a microcontroller unit (MCU), which is connected to the display circuit, mode selection circuit and infrared transmission circuit. Its function is to realize intelligent control of signal transmission. Through the MCU, user input and status feedback are integrated, the operation of each subsystem is coordinated, and the intuitiveness and automation level of the device are improved.

[0013] Optionally, the infrared receiving unit includes a power input circuit, a filtering circuit, a voltage regulating circuit, a control circuit, a signal receiving circuit, a differential voltage comparison circuit, a status display circuit, an output mode selection circuit, a sensor output circuit, a current amplification circuit, a load output circuit, and an overcurrent protection circuit, with each circuit connected sequentially or in parallel.

[0014] The internal circuit connections of the infrared receiving unit have been refined, including the sequential or parallel connections of power input, filtering, voltage regulation, control, signal reception, differential voltage comparison, status display, output mode selection, sensor output, current amplification, load output, and overcurrent protection circuits. This structure aims to build a complete signal reception and processing chain, achieving high-precision obstruction detection and integrating protection mechanisms to enhance the robustness of the device.

[0015] Optionally, the signal receiving circuit is connected to a differential voltage comparator circuit to shape and filter the received infrared signal and input it to the control circuit for decoding.

[0016] The connection between the signal receiving circuit and the differential voltage comparator circuit is emphasized. Its function is to perform preliminary shaping and filtering of the received infrared signal, remove environmental interference, improve the signal-to-noise ratio, and thus provide a clear and stable input for MCU decoding, thereby enhancing the reliability of detection.

[0017] Optionally, the control circuit is connected to the output mode selection circuit, controls the sensor output circuit according to the decoding result, and drives the load output circuit through the current amplification circuit.

[0018] The connection between the control circuit and the output mode selection circuit, the sensor output circuit, the current amplification circuit and the load output circuit is described. Its function is to flexibly control the output mode (such as normally open or normally closed) according to the decoding result, and drive the load through current amplification, so that the device can adapt to different external devices and improve its practicality and compatibility.

[0019] Optionally, the overcurrent protection circuit is connected to the load output circuit and the control circuit to interrupt the sensing output circuit in the event of overload or short circuit.

[0020] The connection between the overcurrent protection circuit, the load output circuit, and the control circuit is defined. Its function is to provide safety protection when the load is overloaded or short-circuited, prevent damage to the current amplification circuit, ensure that the device automatically shuts down under abnormal conditions, and extend its service life.

[0021] Optionally, the status display circuit is an LED indicator light connected to the control circuit to indicate the working status.

[0022] The status display circuit is clearly defined as an LED indicator light, which is connected to the control circuit. Its function is to indicate the working status (such as normal or abnormal) with red and green colors, providing intuitive status feedback and improving the reliability of the device and the user experience.

[0023] Optionally, both the infrared emitting unit and the infrared receiving unit are equipped with independent π-type filter circuits and LDO voltage regulator circuits, forming a symmetrical power management structure.

[0024] It is pointed out that both the infrared transmitting and receiving units are equipped with independent π-type filter circuits and LDO voltage regulator circuits, forming a symmetrical power management structure. Its function is to improve the anti-interference and stability of the device, reduce the impact of power supply noise on both units through symmetrical design, and ensure the consistency of signal transmission.

[0025] Alternatively, the display circuit is an OLED display screen connected to the control circuit for real-time display of the emission status.

[0026] The specified display circuit is an OLED display screen, which is connected to the control circuit. Its function is to provide real-time visual feedback, display the emission intensity and working status, enhance the operability and self-testing capability of the device, and facilitate user monitoring and debugging.

[0027] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0028] The technical solution provided by this utility model achieves high-precision sock movement detection through digital waveform technology of the infrared transmitting and receiving units. Compared with traditional analog technology, this device uses a data waveform decoding method. It receives a complete signal when there are no obstructions, and the signal is incomplete when a sock moves in. By comparing the decoded data, the presence of an obstruction is determined, resulting in multiple beneficial effects: more accurate judgment and reduced false judgment rate; higher reliability and reduced risk of equipment damage; stronger anti-interference capability, effectively resisting external interference such as stepper motors; more intuitive operation, with real-time status feedback through the display unit; and wider adaptability, allowing flexible adjustment of the working mode to adapt to different production environments. Overall, this device significantly improves the detection stability, production efficiency, and automation level of the sock knitting machine. Attached Figure Description

[0029] Figure 1 A schematic diagram of an infrared emission system structure for a sock-shifting sensing system in a sock-knitting machine, as proposed in an embodiment of this utility model;

[0030] Figure 2 A schematic diagram of the infrared receiving system structure of a sock-shifting sensing system for a sock-knitting machine, as proposed in an embodiment of this utility model;

[0031] Figure 3 A schematic diagram of an infrared emitting circuit for a sock-shifting sensing system in a sock-knitting machine, as proposed in an embodiment of this utility model;

[0032] Figure 4 A schematic diagram of an infrared receiving circuit for a sock-shifting sensing system in a sock-knitting machine, as proposed in an embodiment of this utility model;

[0033] 1. Power input; 2. π-type filter; 3. LDO voltage regulator; 4. MCU; 5. Signal receiver; 6. Differential voltage comparator; 7. LED status display; 8. Output mode selection; 9. Sensor output; 10. Current amplification; 11. Load output; 12. Overcurrent protection. Detailed Implementation

[0034] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0035] Example

[0036] Combined with appendix Figure 1-4 A sock-moving sensing system for an integrated sock knitting machine includes an infrared emitting unit and an infrared receiving unit, which are positioned opposite each other to detect obstructions using infrared signals. The infrared emitting unit continuously transmits infrared signals, which are received by the infrared receiving unit. When there is no obstruction, the signal is transmitted completely, and the receiving unit decodes it to confirm the absence of an object. When a sock is moved in, the signal is partially or completely blocked, and the receiving unit detects the signal change, thus determining the presence of an obstruction. The principle is based on the rectilinear propagation of infrared light and the obstruction effect, achieving accurate detection.

[0037] The infrared transmitting unit includes a power input circuit 1, a filter circuit, a voltage regulator circuit, a control circuit, a display circuit, a mode selection circuit, and an infrared transmitting circuit, all connected sequentially. The power input circuit 1 introduces external power, the π-type filter circuit 2 removes high-frequency noise, and the LDO voltage regulator circuit 3 outputs a stable voltage (5V and 3.3V) to power the MCU4 and OLED. The MCU4, as the control core, processes the mode selection signal and drives the infrared transmitting circuit to transmit digital waveforms. The OLED display shows the status in real time, enabling human-machine interaction. Operation is based on digital circuits and voltage regulation technology to ensure signal consistency and low power consumption.

[0038] The filter circuit is a π-type filter 2 circuit, connected between the power input 1 circuit and the voltage regulator circuit, used to suppress high-frequency noise. The π-type filter 2 circuit consists of an inductor and a capacitor, utilizing impedance characteristics to filter out high-frequency noise on the power line; when current flows, the inductor impedes high-frequency changes, and the capacitor shunts high-frequency noise, making the output power supply smoother. The principle is based on passive filtering theory, reducing the impact of electromagnetic interference on MCU4 and the transmitting circuit.

[0039] The voltage regulator circuit includes a first LDO regulator circuit and a second LDO regulator circuit. The first LDO regulator circuit outputs 5V, and the second LDO regulator circuit outputs 3.3V, powering the control circuit and display circuit respectively. The LDO regulator circuits adjust the output voltage through a feedback mechanism: the 5V output powers digital circuits such as the MCU4, and the 3.3V output powers low-power devices such as OLEDs. When the input voltage fluctuates, the LDOs quickly adjust to maintain a stable output. The principle is based on linear voltage regulation technology, providing low-noise, high-precision power and ensuring circuit reliability.

[0040] The control circuit is a microcontroller unit (MCU), connected to the display circuit, mode selection circuit, and infrared transmitting circuit, used for controlling signal transmission and status display. The MCU4 receives input signals from the mode selection circuit (such as button operations), processes the logic, and then controls the infrared transmitting circuit to transmit a digital waveform of a specific format. Simultaneously, the MCU4 drives the display circuit to update status information. The principle is based on microprocessor programming, implementing digital signal processing and real-time control to ensure the accuracy of waveform transmission.

[0041] The infrared receiving unit includes a power input circuit 1, a filtering circuit, a voltage regulator circuit, a control circuit, a signal receiving circuit 5, a differential voltage comparator circuit 6, a status display circuit, an output mode selection circuit 8, a sensor output circuit 9, a current amplification circuit 10, a load output circuit 11, and an overcurrent protection circuit 12. These circuits are connected sequentially or in parallel. Power input 1 supplies power to each circuit after filtering and voltage regulation. The signal receiving circuit 5 captures the infrared signal, which is shaped and filtered by the differential voltage comparator circuit 6 before being sent to the MCU4 for decoding. The MCU4 controls the sensor output 9 according to the output mode selection circuit 8, the current amplification circuit 10 drives the load, and the overcurrent protection circuit 12 monitors for abnormalities. The principle is based on analog and digital hybrid circuit technology to ensure the accuracy and safety of signal processing.

[0042] Signal receiving circuit 5 is connected to differential voltage comparator circuit 6, used to shape and filter the received infrared signal, and input it to the control circuit for decoding. Signal receiving circuit 5 converts the infrared light signal into an electrical signal, and differential voltage comparator circuit 6 compares the input voltage with the reference voltage to output the shaped digital waveform; this eliminates common-mode noise, based on differential amplification theory, ensuring that only the valid signal is transmitted to MCU4 for decoding.

[0043] The control circuit is connected to the output mode selection circuit 8. Based on the decoding result, it controls the sensor output circuit 9, and drives the load output circuit 11 through the current amplification circuit 10. After the MCU4 decodes the infrared signal, if it does not match the transmitted data, it triggers the sensor output signal 9. The output mode selection circuit 8 sets the output logic, and the current amplification circuit 10 amplifies the signal current to drive the load (such as a relay or motor). The principle is based on switch control and current amplification technology to achieve high load capacity.

[0044] The overcurrent protection circuit 12 is connected to the load output circuit 11 and the control circuit to interrupt the sensing output circuit 9 in case of overload or short circuit. The overcurrent protection circuit 12 monitors the load current; when the current exceeds a threshold, it sends an interrupt signal to the MCU4. The MCU4 immediately disables the sensing output 9 and cuts off the power supply to the current amplification circuit 10. The principle is based on current sensing and interrupt handling, achieving fast response and hardware protection.

[0045] The status display circuit uses LED indicators connected to the control circuit to indicate the operating status. The MCU4 controls the LED indicators based on the decoding results: green indicates no obstruction, and red indicates obstruction. The principle is based on an LED driver circuit, which controls the light color through current to achieve a simple and effective status indication.

[0046] Both the infrared transmitting and receiving units have independent π-type filter circuits and LDO voltage regulator circuits, forming a symmetrical power management structure. The π-type filter circuit and LDO voltage regulator circuit in each unit operate independently, isolating power supply noise; the transmitting and receiving units operate under symmetrical voltages, reducing false alarms. This principle is based on power isolation and symmetrical circuit design, improving overall electromagnetic compatibility.

[0047] The display circuit uses an OLED screen connected to the control circuit to display the transmission status in real time. The OLED screen is driven by an MCU4, receiving data through a digital interface to display text or graphics; its low power consumption makes it suitable for embedded applications. The principle is based on organic light-emitting diode technology, achieving high contrast and fast response.

[0048] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sock-shifting sensing system for an integrated sock knitting machine, characterized in that, It includes an infrared emitting unit and an infrared receiving unit, wherein the infrared emitting unit and the infrared receiving unit are arranged opposite to each other and are used to detect obstructions by infrared signals; The infrared emitting unit includes a power input circuit, a filter circuit, a voltage regulator circuit, a control circuit, a display circuit, a mode selection circuit, and an infrared transmitting circuit, which are connected in sequence. The filter circuit is a π-type filter circuit, connected between the power input circuit and the voltage regulator circuit, and is used to suppress high-frequency noise.

2. The sock-shifting sensing system for an integrated sock knitting machine according to claim 1, characterized in that, The voltage regulator circuit includes a first LDO voltage regulator circuit and a second LDO voltage regulator circuit. The first LDO voltage regulator circuit outputs a 5V voltage, and the second LDO voltage regulator circuit outputs a 3.3V voltage, which power the control circuit and the display circuit, respectively.

3. The sock-shifting sensing system for a sock-knitting machine according to claim 1, characterized in that, The control circuit is a microcontroller unit, connected to the display circuit, mode selection circuit, and infrared transmission circuit, and is used to control signal transmission and status display.

4. The sock-shifting sensing system for an integrated sock knitting machine according to claim 1, characterized in that, The infrared receiving unit includes a power input circuit, a filter circuit, a voltage regulator circuit, a control circuit, a signal receiving circuit, a differential voltage comparison circuit, a status display circuit, an output mode selection circuit, a sensor output circuit, a current amplification circuit, a load output circuit, and an overcurrent protection circuit. These circuits are connected sequentially or in parallel.

5. The sock-shifting sensing system for a sock-knitting machine according to claim 4, characterized in that, The signal receiving circuit is connected to a differential voltage comparator circuit, which is used to shape and filter the received infrared signal and input it to the control circuit for decoding.

6. The sock-shifting sensing system for a sock-knitting machine according to claim 4, characterized in that, The control circuit is connected to the output mode selection circuit, controls the sensor output circuit according to the decoding result, and drives the load output circuit through the current amplification circuit.

7. The sock-shifting sensing system for a sock-knitting machine according to claim 4, characterized in that, The overcurrent protection circuit is connected to the load output circuit and the control circuit, and is used to interrupt the sensor output circuit in case of overload or short circuit.

8. The sock-shifting sensing system for a sock-knitting machine according to claim 4, characterized in that, The status display circuit is an LED indicator light, which is connected to the control circuit and is used to indicate the working status.

9. The sock-shifting sensing system for an integrated sock knitting machine according to claim 1, characterized in that, Both the infrared emitting unit and the infrared receiving unit are equipped with independent π-type filter circuits and LDO voltage regulator circuits, forming a symmetrical power management structure.

10. A sock-shifting sensing system for a sock-knitting machine according to any one of claims 1 to 9, characterized in that, The display circuit is an OLED display screen, which is connected to the control circuit and is used to display the emission status in real time.

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