Single-chip microcomputer controlled double-pipeline switching system of knitted sock shaping equipment

Abstract

The invention relates to the technical field of knitwear processing equipment, and discloses a single-chip microcomputer control double-pipeline switching system of knitted sock shaping equipment, which comprises a rack, and the rack is used as a support framework of the whole device and provides a support effect for a transmission device and a heating circulation system; the rack is fixedly connected with a heating circulation system, the heating circulation system comprises a closed compressed air tank, and the inner wall of the closed compressed air tank is fixedly connected with a heat conduction oil pipe; the heating circulating system is connected with a double-pipeline system, the double-pipeline system comprises a compressed air pipeline and a steam pipeline, and the compressed air pipeline and the steam pipeline are both connected with a closed compressed air tank. By means of precise control of the single chip microcomputer, compared with traditional knitted sock shaping equipment, the steam and compressed air switching response speed is higher, the control precision is higher, and the problems of energy waste and unstable product quality caused by switching delay and inaccurate control are effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of knitwear processing equipment, in particular to a single-chip microcomputer-controlled dual-pipeline switching system for hosiery shaping equipment. Background Art

[0002] In the hosiery industry, shaping is a critical process that determines product quality. Currently, the shaping equipment commonly used in hosiery factories mostly uses steam heating, with PLCs controlling heating time, gas pressure, and hold time. A thorough analysis of thermodynamics and control technology reveals significant deficiencies in this type of equipment. In terms of energy utilization, steam generation consumes a significant amount of high-grade thermal energy during steam heating. Furthermore, due to the large temperature difference between the steam and the ambient air, heat is easily lost through heat conduction and convection during transportation and use, resulting in low energy conversion efficiency. Furthermore, traditional PLCs lack flexibility in pipeline control, making it difficult to achieve efficient and precise switching between steam and other heating gases. Furthermore, the steam system's complex structure makes maintenance difficult, resulting in a high equipment failure rate, further exacerbating energy loss and increasing production costs. Therefore, the development of a new hosiery shaping equipment that optimizes energy utilization and enables precise dual-pipeline switching control has become an urgent challenge for the industry. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a single-chip microcomputer-controlled dual-pipeline switching system for sock knitting and shaping equipment. With the help of the single-chip microcomputer's precise control of the dual pipelines, efficient and stable switching of heating gases such as steam and compressed air can be achieved; at the same time, based on the principles of thermodynamics, the equipment energy system is comprehensively optimized to improve the thermal energy utilization rate, reduce heat loss and energy waste, and reduce dependence on traditional high-energy consumption steam, thereby achieving the goal of energy-saving and clean production, and significantly improving the energy utilization efficiency and product production quality in the sock shaping process.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a single-chip microcomputer-controlled dual-pipeline switching system for hosiery shaping equipment, comprising a frame, which serves as a supporting structure for the entire device and provides support for the transmission device and the heating circulation system;

[0005] The frame is fixedly connected to a heating circulation system, the heating circulation system includes a closed compressed air tank, the inner wall of the closed compressed air tank is fixedly connected to a heat transfer oil pipe, and the heat transfer oil pipe is spirally distributed;

[0006] The heating circulation system is connected to a dual-pipeline system, which includes a compressed air pipeline and a steam pipeline, and the compressed air pipeline and the steam pipeline are both connected to a closed compressed air tank;

[0007] A pressure monitoring gauge is installed on the compressed air pipeline, and the pressure monitoring gauge is used to heat the intracavity pressure of the circulation system;

[0008] The compressed air pipeline and the steam pipeline are both internally installed with solenoid valves, which are used to quickly respond to control instructions issued by the single-chip control system in a high-temperature environment and adjust the diameter;

[0009] The frame is connected to a transmission device, which is driven by a servo motor to drive the sock mold device to move, so that the sock mold device moves to the heating circulation system for shaping and heating, and moves out of the heating circulation system after the shaping and heating are completed;

[0010] The transmission device is connected to a sock mold device, which includes a plurality of sock molds of different specifications that can be quickly replaced, and the sock mold device can be installed and removed from the transmission device;

[0011] The heating circulation system is connected to a single-chip microcomputer control system, which is connected to the dual-pipeline system through a pressure detection gauge and a solenoid valve. The pressure detection gauge transmits the collected data to the single-chip microcomputer control system. The single-chip microcomputer control system controls the two groups of solenoid valves separately through a control program, and realizes precise regulation of gas introduction based on the principle of Bernoulli equation.

[0012] Preferably, in the single chip microcomputer control system, precise regulation of gas introduction is achieved based on the Bernoulli equation principle, specifically:

[0013] When the pressure gauge detects that the pressure reaches the set value, the single chip control system controls the solenoid valve on the steam pipe to close and opens the solenoid valve on the compressed air pipe at the same time.

[0014] When the pressure reaches the target value, the single chip control system controls both solenoid valves to close;

[0015] When the pressure detection gauge detects abnormal pressure, it sends a signal to the single-chip microcomputer control system, which starts the alarm measures such as flashing red alarm light, opening the molding chamber door and controlling the equipment to shut down.

[0016] Preferably, the heating circulation system utilizes the circulating heat-conducting oil for drying socks to heat the air, improves the heat exchange efficiency based on the principle of enhanced heat transfer in thermodynamics, compresses the heated air and passes it into the equipment cavity to heat and shape the socks, and recycles the compressed air after use.

[0017] Preferably, the single chip microcomputer control system is connected to the transmission device, and the single chip microcomputer control system controls the operation of the servo motor to drive the sock mold device to move in the heating circulation system cavity.

[0018] Preferably, the single-chip microcomputer control system is provided with a pressure monitoring sensor, a temperature monitoring sensor, and a flow monitoring sensor, which are used to monitor and adjust the heating time, pressure, holding time, as well as the heat transfer oil temperature, air compression pressure, and air circulation flow parameters in the heating circulation system, to achieve full-process automated energy optimization control based on thermodynamic principles.

[0019] Preferably, the heating circulation system also includes a heat exchanger, a compressor and an air recovery device, the heat exchanger is used to realize heat transfer between the circulating heat-conducting oil and the air, the compressor is used to compress the heated air, and the air recovery device is used to reduce the pressure of the compressed air after use, recover it and recycle it.

[0020] A method for using a single-chip microcomputer-controlled dual-pipeline switching system of a hosiery shaping device comprises the following steps:

[0021] S1, initial stage, the single chip control system controls the steam pipeline solenoid valve to open and the compressed air pipeline solenoid valve to close, allowing steam to flow into the equipment cavity;

[0022] S2, the pressure detection gauge monitors the cavity pressure in real time. When the pressure reaches the set value, the single-chip control system controls the steam pipe solenoid valve to close and simultaneously opens the compressed air pipe solenoid valve to allow compressed air to flow into the cavity;

[0023] S3. When the pressure detection gauge detects that the pressure reaches the target value, the single chip control system controls both solenoid valves to close and stop the gas supply;

[0024] S4. During the gas switching process, the single-chip control system fine-tunes the solenoid valve opening in advance according to the pressure change trend to ensure smooth and rapid gas switching.

[0025] The present invention provides a single-chip microcomputer-controlled dual-pipeline switching system for hosiery shaping equipment. It has the following beneficial effects:

[0026] 1. With the help of the precise control of the single-chip microcomputer, the present invention makes the switching response speed between steam and compressed air faster and the control accuracy higher than that of traditional hosiery shaping equipment, effectively avoiding the energy waste and unstable product quality caused by switching delays and inaccurate control.

[0027] 2. This invention utilizes thermodynamically based pipeline design, recycling technology, and precise control of energy output by a single-chip microcomputer. This equipment significantly reduces steam usage, significantly lowering energy consumption and production costs. The spiral arrangement of heat transfer oil pipes within the closed compressed air tank improves heat exchange efficiency based on the principle of enhanced heat transfer; insulation materials attached to the outside of the pipes reduce heat loss; pipes designed based on the Bernoulli equation and solenoid valves precisely controlled by a single-chip microcomputer optimize gas flow and reduce energy loss; and an impurity purification device installed in the compressed air output pipe ensures compressed air quality without affecting the thermodynamic cycle, further optimizing the thermodynamic performance of the equipment during operation and significantly improving the thermal efficiency of the system.

[0028] 3. The present invention effectively improves the molding efficiency and quality through precise pressure control and optimized gas supply process, combined with the alarm shutdown mechanism when the pressure is abnormal, reduces the thermodynamic instability caused by pressure fluctuations or untimely gas switching, and thus reduces the probability of product quality problems.

[0029] 4. The single-chip microcomputer control system in the present invention realizes more accurate and flexible automatic control based on the principles of thermodynamics. It can quickly adjust parameters according to actual production needs, improve the shaping quality and production efficiency of socks, reduce equipment maintenance costs, and truly realize the organic combination of energy-saving and clean production and intelligent production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the system flow of the present invention;

[0031] Figure 2 The figure is a flow chart of the method for using the present invention. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example:

[0034] Please see the attached Figure 1 -Attached Figure 2 , an embodiment of the present invention provides a single-chip microcomputer-controlled dual-pipeline switching system for a hosiery shaping device, comprising a frame, the frame serving as a supporting structure for the entire device, providing support for a transmission device and a heating circulation system;

[0035] A heating circulation system is fixedly connected to the frame, and the heating circulation system includes a closed compressed air tank. A heat transfer oil pipe is fixedly connected to the inner wall of the closed compressed air tank. The heat transfer oil pipe is spirally distributed. Based on the principle of extended surface enhanced heat transfer, the contact area between the heat transfer oil and the air is greatly increased, thereby enhancing the heat conduction efficiency.

[0036] According to Fourier's law

[0037]

[0038] in:

[0039] Q represents the heat transfer; k represents the thermal conductivity; A represents the heat transfer area; represents the temperature gradient;

[0040] Larger contact area and reasonable heat conduction path design can transfer heat from thermal oil to air more efficiently, effectively improving heat exchange performance;

[0041] The heating circulation system utilizes the circulating heat-conducting oil for drying socks to heat the air, improves the heat exchange efficiency based on the principle of enhanced heat transfer in thermodynamics, compresses the heated air and passes it into the equipment cavity to heat and shape the socks, and recycles the compressed air after use. The heating circulation system also includes a heat exchanger, a compressor and an air recovery device. The heat exchanger is used to realize heat transfer between the circulating heat-conducting oil and the air, the compressor is used to compress the heated air, and the air recovery device is used to reduce the pressure of the compressed air after use, recover it, and recycle it.

[0042] The heating circulation system is connected to a dual-pipeline system, which includes a compressed air pipeline and a steam pipeline, and the compressed air pipeline and the steam pipeline are both connected to a closed compressed air tank;

[0043] The compressed air and steam pipes are made of 304 stainless steel pipes, and the outer walls are covered with aluminum silicate fiber felt insulation material to reduce heat loss based on heat conduction theory. The pipe's inner diameter, curve radius, laying height, and slope parameters are strictly designed based on the Bernoulli equation to ensure the rational conversion of kinetic energy, potential energy, and pressure energy when the gas flows in the pipe, reduce energy loss, and maintain thermodynamic stability during gas transportation. The design of parameters including the pipe's inner diameter, curve radius, laying height, and slope are all based on the Bernoulli equation.

[0044]

[0045] in:

[0046] p represents the fluid pressure; ρ represents the fluid density; v represents the fluid flow rate; g represents the acceleration due to gravity; h represents the height of the fluid; C represents a constant, indicating the conservation of energy at each point on the same streamline.

[0047] The compressed air pipeline is equipped with an impurity purification device, specifically a high-temperature ceramic filter element. A pressure monitoring gauge is also installed on the compressed air pipeline, which monitors the pressure within the heating circulation system. Solenoid valves are installed within both the compressed air pipeline and the steam pipeline, designed to quickly respond to control commands from the single-chip control system and adjust the flow diameter in high-temperature environments.

[0048] The frame is connected to a transmission device, which is driven by a servo motor to drive the sock mold device to move, so that the sock mold device moves to the heating circulation system for shaping and heating, and moves out of the heating circulation system after the shaping and heating are completed; the transmission device is connected to a sock mold device, which includes multiple sock molds of different specifications that can be quickly replaced, and the sock mold device can be installed and removed from the transmission device.

[0049] The heating circulation system is connected to a single-chip microcomputer control system, which is connected to the dual-pipeline system through a pressure detection gauge and a solenoid valve. The pressure detection gauge transmits the collected data to the single-chip microcomputer control system, and the single-chip microcomputer control system controls the two sets of solenoid valves separately through a control program, specifically:

[0050] In the initial stage, the single chip microcomputer controls the solenoid valve on the steam pipe to open and the solenoid valve on the compressed air pipe to close, and steam flows into the equipment cavity;

[0051] When the pressure detection gauge detects that the pressure reaches the set value, the single chip microcomputer controls the solenoid valve on the steam pipe to close and simultaneously opens the solenoid valve on the compressed air pipe, and the compressed air flows into the cavity;

[0052] When the pressure gauge detects that the pressure has reached the target value, the microcontroller controls the closing of both solenoid valves, halting the gas supply. Throughout this process, the microcontroller can fine-tune the solenoid valve openings in advance based on pressure trends, ensuring smoother and faster gas switching, avoiding energy loss and sock shaping quality issues caused by pressure fluctuations.

[0053] Then, based on the principle of Bernoulli equation, precise control of gas introduction is achieved, specifically:

[0054] When the pressure gauge detects that the pressure reaches the set value, the single chip control system controls the solenoid valve on the steam pipe to close and opens the solenoid valve on the compressed air pipe at the same time.

[0055] When the pressure reaches the target value, the single chip control system controls both solenoid valves to close;

[0056] When the pressure detection gauge detects abnormal pressure, it sends a signal to the single-chip microcomputer control system, which starts the alarm measures such as flashing red alarm light, opening the molding chamber door and controlling the equipment to shut down.

[0057] The single-chip control system is connected to the transmission device. The single-chip control system controls the operation of the servo motor to drive the sock mold device to move in the heating circulation system cavity. The single-chip control system is provided with a pressure monitoring sensor, a temperature monitoring sensor, and a flow monitoring sensor. The pressure monitoring sensor, the temperature monitoring sensor, and the flow monitoring sensor are used to monitor and adjust the heating time, pressure, holding time, and the heat transfer oil temperature, air compression pressure, and air circulation flow parameters in the heating circulation system to realize full-process automated energy optimization control based on thermodynamic principles.

[0058] Working principle:

[0059] Before actual production operations, operators need to select a suitable sock mold based on the style and specifications of the socks to be shaped, install it on the transmission device through a specific mechanical connection structure, and then put the socks on the sock mold.

[0060] Start the microcontroller control system and, within the microcontroller's interface, sequentially set parameters such as the heating time, steam pressure setpoint, compressed air pressure target, and pressure hold time. Simultaneously, set operating parameters such as the thermal oil temperature, air compression pressure, and air circulation flow rate for the heating circulation system. The microcontroller then controls the opening of the solenoid valve on the steam line and the closing of the solenoid valve on the compressed air line, allowing steam to flow through the pipe designed according to the Bernoulli equation. The pipe's insulation effectively reduces heat loss. Furthermore, the pipe's inner diameter, curve radius, and laying height and slope ensure that steam enters the chamber at an appropriate flow rate and pressure, thermodynamically guaranteeing initial heat supply while maintaining efficient steam flow. Based on real-time pressure data fed back by the pressure gauge, the microcontroller, combined with its built-in control program and the principles of the Bernoulli equation, adjusts the opening of the steam pipe's solenoid valve in real time to ensure that steam flow meets design requirements.

[0061] When the pressure gauge detects that the steam pressure reaches the set value, it transmits a signal to the microcontroller, which immediately closes the solenoid valve on the steam line and opens the solenoid valve on the compressed air line. Within the enclosed compressed air tank, a spirally arranged thermal oil pipe efficiently transfers heat from the circulating thermal oil to the air based on the principle of enhanced heat transfer. After the air is compressed, its thermal energy density increases significantly according to the thermodynamic principles of gas compression. The compressed hot air flows through a pipe designed according to the Bernoulli equation. The microcontroller, based on the pressure gauge data and the Bernoulli equation, uses a control program to adjust the opening of the solenoid valve in the compressed air line to control the flow rate and pressure of the hot air. After the hot air is filtered through an impurity purification device, it is passed into the equipment chamber to heat and shape the socks. During the shaping process, the microcontroller controls the servo motor, which drives the transmission mechanism to move the sock mold along a set trajectory, ensuring uniform heating of all parts of the sock and achieving efficient shaping based on the principle of thermal convection.

[0062] When the pressure gauge detects that the compressed air pressure reaches the target value, it transmits a signal to the microcontroller, which controls the closing of both solenoid valves, stopping the air supply and entering the pressure-maintaining phase. If the pressure gauge detects a pressure anomaly during operation, such as excessively high or low pressure, it immediately sends a signal to the microcontroller. The microcontroller analyzes the pressure anomaly based on the Bernoulli equation and determines whether it may be caused by a pipe blockage or abnormal gas flow. For example, if the pressure is too high, it may indicate a slow gas flow rate in the pipe. The microcontroller, through the control program, attempts to adjust the solenoid valve opening to increase gas flow. If the pipe is blocked, the microcontroller controls the alarm device to sound an alarm, prompting the operator to inspect and clean the pipe. Simultaneously, the microcontroller activates the alarm, flashing red, opening the molding chamber door, and shutting down the machine. The operator can further analyze the cause of the pressure anomaly based on thermodynamic principles (such as the Bernoulli equation and heat conduction theory) and machine operating data, and make appropriate adjustments and troubleshooting. After molding is complete, the transmission device ejects the sock mold from the machine chamber, allowing the operator to remove the molded sock.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A single-chip microcomputer controlled dual-pipeline switching system for hosiery shaping equipment, characterized in that: The frame serves as the supporting structure of the entire device and provides support for the transmission device and the heating circulation system; The frame is fixedly connected to a heating circulation system, the heating circulation system includes a closed compressed air tank, the inner wall of the closed compressed air tank is fixedly connected to a heat transfer oil pipe, and the heat transfer oil pipe is spirally distributed; The heating circulation system is connected to a dual-pipeline system, which includes a compressed air pipeline and a steam pipeline, and the compressed air pipeline and the steam pipeline are both connected to a closed compressed air tank; A pressure monitoring gauge is installed on the compressed air pipeline, and the pressure monitoring gauge is used to heat the intracavity pressure of the circulation system; The compressed air pipeline and the steam pipeline are both internally installed with solenoid valves, which are used to quickly respond to control instructions issued by the single-chip control system in a high-temperature environment and adjust the diameter; The frame is connected to a transmission device, which is driven by a servo motor to drive the sock mold device to move, so that the sock mold device moves to the heating circulation system for shaping and heating, and moves out of the heating circulation system after the shaping and heating are completed; The transmission device is connected to a sock mold device, which includes a plurality of sock molds of different specifications that can be quickly replaced, and the sock mold device can be installed and removed from the transmission device; The heating circulation system is connected to a single-chip microcomputer control system, which is connected to the dual-pipeline system through a pressure detection gauge and a solenoid valve. The pressure detection gauge transmits the collected data to the single-chip microcomputer control system. The single-chip microcomputer control system controls the two groups of solenoid valves separately through a control program, and realizes precise regulation of gas introduction based on the principle of Bernoulli equation.

2. The single-chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1 is characterized in that: In the single chip microcomputer control system, precise control of gas flow is achieved based on the Bernoulli equation principle, specifically: When the pressure gauge detects that the pressure reaches the set value, the single chip control system controls the solenoid valve on the steam pipe to close and opens the solenoid valve on the compressed air pipe at the same time. When the pressure reaches the target value, the single chip control system controls both solenoid valves to close; When the pressure detection gauge detects abnormal pressure, it sends a signal to the single-chip microcomputer control system, which starts the alarm measures such as flashing red alarm light, opening the molding chamber door and controlling the equipment to shut down.

3. The single chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: An impurity purification device is installed on the compressed air pipeline, and the impurity purification device is specifically a high-temperature resistant ceramic filter element.

4. The single-chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: The compressed air pipeline and steam pipeline are made of 304 stainless steel pipes, and the outer wall is covered with aluminum silicate fiber felt insulation material to reduce heat loss based on heat conduction theory. The pipeline design complies with the Bernoulli equation to ensure the reasonable conversion of kinetic energy, potential energy and pressure energy when the gas flows in the pipeline. Parameters including the inner diameter of the pipeline, the curvature of the curve, the laying height and the slope are all designed based on the Bernoulli equation.

5. The single chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: The heating circulation system uses the circulating heat-conducting oil for drying socks to heat the air, improves the heat exchange efficiency based on the thermodynamic principle of enhanced heat transfer, compresses the heated air and passes it into the equipment cavity to heat and shape the socks, and recycles the compressed air after use.

6. The single chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: The single chip microcomputer control system is connected to the transmission device, and the single chip microcomputer control system controls the operation of the servo motor to drive the sock mold device to move in the heating circulation system cavity.

7. The single chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: The single-chip microcomputer control system is provided with a pressure monitoring sensor, a temperature monitoring sensor, and a flow monitoring sensor. The pressure monitoring sensor, the temperature monitoring sensor, and the flow monitoring sensor are used to monitor and adjust the heating time, pressure, and pressure holding time, as well as the heat transfer oil temperature, air compression pressure, and air circulation flow parameters in the heating circulation system, to achieve full-process automated energy optimization control based on thermodynamic principles.

8. The single chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to claim 1, characterized in that: The heating circulation system also includes a heat exchanger, a compressor and an air recovery device. The heat exchanger is used to realize heat transfer between the circulating heat-conducting oil and the air, the compressor is used to compress the heated air, and the air recovery device is used to reduce the pressure of the compressed air after use, recover it, and recycle it.

9. The method for using the single-chip microcomputer controlled dual-pipeline switching system of the hosiery shaping equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, initial stage, the single chip control system controls the steam pipeline solenoid valve to open and the compressed air pipeline solenoid valve to close, allowing steam to flow into the equipment cavity; S2, the pressure detection gauge monitors the cavity pressure in real time. When the pressure reaches the set value, the single-chip control system controls the steam pipe solenoid valve to close and simultaneously opens the compressed air pipe solenoid valve to allow compressed air to flow into the cavity; S3. When the pressure detection gauge detects that the pressure reaches the target value, the single chip control system controls both solenoid valves to close and stop the gas supply; S4. During the gas switching process, the single-chip control system fine-tunes the solenoid valve opening in advance according to the pressure change trend to ensure smooth and rapid gas switching.

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