Soldering iron lifting control method and device, master control unit and storage medium

Abstract

The embodiment of the invention discloses a soldering iron lifting control method and device, a master control unit and a storage medium. The method and device are applied to the master control unit in a soldering iron lifting system. A working port of the pneumatic control valve and a cylinder working cavity of the soldering iron lifting cylinder form a gas path through a joint; an air outlet of the ascending electromagnetic valve is connected with a first pneumatic control port of the pneumatic control valve through a first air path, and an air outlet of the descending electromagnetic valve is connected with a second pneumatic control port of the pneumatic control valve through a second air path; the method comprises the steps that a power-on instruction is sent to the ascending electromagnetic valve, a power-off instruction is sent to the descending electromagnetic valve, the ascending electromagnetic valve opens an air outlet to conduct a first air path, and after the air control valve conducts a first air control opening, a valve element moves to control all soldering iron lifting air cylinders to contract and soldering irons ascend; or, a power-on instruction is initiated to the descending electromagnetic valve and a power-off instruction is initiated to the ascending electromagnetic valve, so that the descending electromagnetic valve opens the air outlet to conduct the second air path, and after the air control valve conducts the second air control port, the valve element moves to control all the soldering iron lifting air cylinders to pull up the soldering iron to descend.

Description

Technical Field

[0001] The present invention relates to the field of cigarette machine sealing technology, and in particular to a soldering iron lifting control method, device, central control unit and storage medium. Background Technology

[0002] The current cigarette rolling machine's cigarette stick sealing process is completed by multiple sealing soldering irons in the soldering iron lifting system. Each sealing soldering iron is controlled by an independent cylinder to lift and lower. In other words, each sealing soldering iron is controlled by a set of solenoid valves. One solenoid valve is used to lift the soldering iron, and the other solenoid valve is used to lower the soldering iron.

[0003] However, current soldering iron lifting systems contain multiple sealed soldering irons, each with two solenoid valves to control their lifting motion. This results in a large number of gas pipes, connectors, and electrical control circuits, making the system complex. Consequently, the installation and maintenance of current soldering iron lifting systems are labor-intensive, leading to high overall system maintenance costs and relatively low reliability. Summary of the Invention

[0004] This invention provides a soldering iron lifting control method, device, central control unit, and storage medium, which reduces the overall system maintenance cost in terms of the number of components and subsequent maintenance costs, and increases the reliability of the entire system in terms of the simplified system structure.

[0005] In a first aspect, embodiments of the present invention provide a soldering iron lifting control method. This method is applied to a central control unit in a soldering iron lifting system. The soldering iron lifting system further includes a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders. The working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder via a connector to form a pneumatic path. The outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve via a first pneumatic path, and the outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve via a second pneumatic path. The central control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively. The method includes: A power-on command is sent to the rising solenoid valve and a power-off command is sent to the falling solenoid valve, causing the rising solenoid valve to open its outlet to connect the first air path, and causing the pneumatic control valve to open its first pneumatic control port and then shift its valve core to control all soldering iron lifting cylinders to retract and raise the soldering iron; or... A power-on command is sent to the descent solenoid valve and a power-off command is sent to the ascent solenoid valve, so that the descent solenoid valve opens the air outlet to open the second air path, and the valve core of the pneumatic control valve moves after opening the second pneumatic control port to control all soldering iron lifting cylinders to raise the soldering iron and lower it.

[0006] The soldering iron lifting control method provided in this invention, based on the innovative structure of the aforementioned soldering iron lifting system, utilizes a single lifting solenoid valve, a single lowering solenoid valve, and a pneumatic control valve to simultaneously control the lifting or lowering of multiple soldering iron lifting cylinders. This solves the problem of numerous and complex pneumatic pipes, connectors, and electrical control circuits in existing soldering iron lifting systems. It achieves pneumatic control of multiple soldering iron lifting cylinders using only two two-position four-way solenoid valves, reducing the number of electrical control components, thereby reducing the number of pneumatic pipes, electrical control circuits, and connectors, and simplifying the overall structure of the soldering iron lifting system. Furthermore, by reducing the number of electrical control components and simplifying the system structure, it addresses the issues of high installation and maintenance workload, high overall system maintenance costs, and low reliability in existing soldering iron lifting systems. It reduces overall system maintenance costs in terms of component quantity and subsequent repair costs, and increases the reliability of the entire system through its simplified structure. Secondly, based on the above-mentioned soldering iron lifting control method, the main control unit only needs to send an energizing / de-energizing command to the solenoid valve according to the operation that the soldering iron needs to perform. This drives the corresponding solenoid valve to drive the pneumatic control valve through a pneumatic control method. In turn, the pneumatic control valve controls the working chamber of the cylinder in the soldering iron lifting cylinder to control the rise / fall of the soldering iron. This not only realizes an automatic soldering iron lifting control method, but also solves the problem of multiple and complicated control processes caused by the need to control two solenoid valves corresponding to each soldering iron lifting cylinder separately in the existing soldering iron lifting system. It enables the soldering iron lifting control to be completed quickly and accurately based on simple control commands, improving user experience and process efficiency.

[0007] Secondly, embodiments of the present invention also provide a soldering iron lifting control device, which is applied to the main control unit of a soldering iron lifting system. The soldering iron lifting system further includes a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders. The working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder through a connector to form a pneumatic path. The air outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve through a first pneumatic path, and the air outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve through a second pneumatic path. The main control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively. The device includes: The control module is used to send an energizing command to the rising solenoid valve and a de-energizing command to the falling solenoid valve, so that the rising solenoid valve opens its air outlet to connect the first air path, and causes the valve core of the pneumatic control valve to move after opening the first pneumatic control port, thereby controlling all soldering iron lifting cylinders to retract and raise the soldering iron; or, to send an energizing command to the falling solenoid valve and a de-energizing command to the rising solenoid valve, so that the falling solenoid valve opens its air outlet to connect the second air path, and causes the valve core of the pneumatic control valve to move after opening the second pneumatic control port, thereby controlling all soldering iron lifting cylinders to raise and lower the soldering iron.

[0008] Thirdly, embodiments of the present invention also provide a central control unit, the central control unit comprising: At least one processor; and A memory that is communicatively connected to at least one processor; wherein, The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to execute the soldering iron lifting control method of any embodiment of the present invention.

[0009] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions, which are used to cause a processor to execute and implement the soldering iron lifting control method of any embodiment of the present invention.

[0010] Fifthly, embodiments of the present invention also provide a computer program product, including a computer program that, when executed by a processor, implements the soldering iron lifting control method of any embodiment of the present invention.

[0011] It should be noted that the aforementioned computer instructions may be stored, in whole or in part, on a computer-readable storage medium. This computer-readable storage medium may be packaged together with the processor of the soldering iron lifting control device, or it may be packaged separately from the processor of the soldering iron lifting control device; this application does not impose any limitations on this.

[0012] The descriptions of the second, third, fourth, and fifth aspects in this application can be referred to the detailed description of the first aspect; and the beneficial effects of the descriptions of the second, third, fourth, and fifth aspects can be referred to the analysis of the beneficial effects of the first aspect, which will not be repeated here.

[0013] In this application, the name of the soldering iron lifting control device does not limit the device or functional module itself. In actual implementation, these devices or functional modules may appear under other names. As long as the function of each device or functional module is similar to that of this application, it falls within the scope of the claims of this application and its equivalents.

[0014] These or other aspects of this application will become more readily apparent in the following description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic flowchart illustrating a soldering iron lifting control method provided in an embodiment of the present invention; Figure 2 This is an example diagram of the control structure of the soldering iron lifting system provided in this embodiment of the invention; Figure 3 This is an example diagram of the control structure of a soldering iron lifting system in the prior art provided in the embodiments of the present invention; Figure 4 This is a schematic diagram of the structure of a soldering iron lifting control device provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the master control unit provided in an embodiment of the present invention. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0018] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0019] The terms "first" and "second," etc., used in the specification and drawings of this application are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a specific order of objects.

[0020] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0021] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the figures. The process can correspond to a method, function, procedure, subroutine, subroutine, etc. Moreover, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0022] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0023] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0024] Figure 1 This is a flowchart illustrating a soldering iron lifting control method provided in an embodiment of the present invention. This embodiment is applicable to the soldering iron lifting system proposed in this embodiment, controlling the lifting of the soldering iron in the system to complete the process of sealing the cigarette strip. This method can be executed by a soldering iron lifting control device, which can be implemented in hardware and / or software and can be integrated into an electronic device. In this embodiment, the electronic device is the central control unit of the soldering iron lifting system.

[0025] Optionally, before introducing the soldering iron lifting control method provided in this embodiment, a brief introduction to the soldering iron lifting system in this embodiment will be given first. Figure 2 This is an example diagram of the control structure of the soldering iron lifting system provided in this embodiment of the invention. (See diagram below.) Figure 2 As shown, the soldering iron lifting system includes a pneumatic control valve 201, a lifting solenoid valve 202, a lowering solenoid valve 203, and at least two soldering iron lifting cylinders 204. The working port 2011 of the pneumatic control valve 201 connects to the cylinder working chamber 2041 of each soldering iron lifting cylinder 204 (the small rectangles on the left and right sides of 204 in the figure form the cylinder working chamber in the soldering iron lifting cylinder; the figure does not show a schematic line connecting all the cylinder working chambers) through a connector 205 (the specific connector path can be determined according to the number of soldering iron lifting cylinders, such as...). Figure 2The middle part is a four-way connector) to form an air passage; the air outlet 2021 of the rising solenoid valve 202 is connected to the first air control port 2012 of the air control valve 201 through the first air passage 206, and the air outlet 2031 of the falling solenoid valve 203 is connected to the second air control port 2013 of the air control valve 201 through the second air passage 207. Furthermore, in Figure 2 The system also includes an air source 208, which divides the air path into three paths via another four-way connector: one path directly connects to the rising solenoid valve 202, the second path directly connects to the falling solenoid valve 203, and the third path directly connects to the main air port 2014 of the pneumatic control valve 201. In this embodiment, the solenoid valves (such as the rising and falling solenoid valves) can be two-position four-way solenoid valves; the pneumatic control valve in this embodiment can be a pneumatic safety valve with pressure holding function. Furthermore, the soldering iron lifting system in this embodiment also includes a central control unit, which is electrically connected to the pneumatic control valve, the rising solenoid valve, and the falling solenoid valve.

[0026] Continue to refer to Figure 1 This embodiment specifically includes: S101, send an energizing command to the rising solenoid valve and a de-energizing command to the falling solenoid valve, so that the rising solenoid valve opens its outlet to connect the first air path, and causes the valve core of the pneumatic control valve to move after opening the first working port, thereby controlling all soldering iron lifting cylinders to retract and raise the soldering iron; or, send an energizing command to the falling solenoid valve and a de-energizing command to the rising solenoid valve, so that the falling solenoid valve opens its outlet to connect the second air path, and causes the valve core of the pneumatic control valve to move after opening the second working port, thereby controlling all soldering iron lifting cylinders to raise and lower the soldering iron.

[0027] The rising solenoid valve indirectly controls all soldering iron lifting cylinders to retract the soldering iron and perform the rising operation. The falling solenoid valve indirectly controls all soldering iron lifting cylinders to raise the soldering iron and perform the falling operation.

[0028] Specifically, in one implementation, if it is necessary to control the soldering iron to rise, an energizing command can be sent to the rising solenoid valve and a de-energizing command to the descending solenoid valve from the central control device. When the rising solenoid valve is energized, the soldering iron guard closes, and the air outlet of the rising solenoid valve opens, connecting the first air path to the first air control port of the air control valve, thus establishing a first air path connection. Simultaneously, the descending solenoid valve is de-energized, closing its air outlet, thus preventing the second air path from being connected. Furthermore, after the first air path is connected, air enters the first air control port of the air control valve, controlling the movement of the valve core inside the air control valve. This allows gas directly supplied from the air source to enter the rodless chamber of the working chamber in the soldering iron lifting cylinder, controlling the cylinder to retract and raise the soldering iron.

[0029] For example, in one implementation, a first relay switch is provided between the rising solenoid valve and the power supply. When the rising solenoid valve needs to be energized, the main control device sends a rising output point signal to the first relay. The first relay closes, and the rising solenoid valve can be energized to switch its working position, thereby enabling the channel interface to switch and connect to the air outlet of the rising solenoid valve, which is currently in the "closed" state.

[0030] Specifically, in another implementation, if it is necessary to control the soldering iron's descent, a power-on command can be sent to the descent solenoid valve and a power-off command to the rise solenoid valve from the central control device. When the descent solenoid valve is energized, the soldering iron shield closes. After being energized, the descent solenoid valve's outlet opens, connecting the second air path to the second air control port of the pneumatic control valve, thus establishing a second air path connection. Simultaneously, the rise solenoid valve is de-energized, closing its outlet, thus disconnecting the first air path. Furthermore, with the second air path connected, air enters the second air control port of the pneumatic control valve, controlling the movement of the valve core inside. This allows gas directly supplied from the gas source to enter the rod chamber of the working chamber in the soldering iron lifting cylinder, controlling the cylinder to raise and lower the soldering iron.

[0031] For example, in another implementation, a second relay switch is provided between the solenoid valve and the power supply. When the solenoid valve needs to be energized, the main control device sends a descent output point signal to the second relay. The second relay closes, and the solenoid valve can be energized to switch its working position, thereby enabling the channel interface to switch to the air outlet of the solenoid valve, which is currently in the "closed" state.

[0032] The soldering iron lifting control method provided in this embodiment of the invention is applied to the main control unit of a soldering iron lifting system. The soldering iron lifting system also includes a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders. The working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder through a connector to form a pneumatic path. The air outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve through a first pneumatic path, and the air outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve through a second pneumatic path. The main control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively. First, based on the above soldering iron lifting... The system's innovative structure utilizes a single ascending solenoid valve, a descending solenoid valve, and a pneumatic control valve to simultaneously control the raising and lowering of multiple soldering iron lifting cylinders. This solves the problem of numerous and complex pneumatic pipes, connectors, and electrical control circuits in existing soldering iron lifting systems. It achieves pneumatic control of multiple soldering iron lifting cylinders using only two 2-position 4-way solenoid valves, reducing the number of electrical control components, thus reducing the number of pneumatic pipes, electrical control circuits, and connectors, and simplifying the overall structure of the soldering iron lifting system. Furthermore, the reduced number of electrical control components and simplified system structure address the issues of high installation and maintenance workload, high overall system maintenance costs, and low reliability in existing soldering iron lifting systems. The system reduces overall maintenance costs by decreasing the number of components and subsequent repair costs, while the simplified structure increases overall system reliability. Secondly, based on the above-mentioned soldering iron lifting control method, the main control unit only needs to send an energizing / de-energizing command to the solenoid valve according to the operation that the soldering iron needs to perform. This drives the corresponding solenoid valve to drive the pneumatic control valve through a pneumatic control method. In turn, the pneumatic control valve controls the working chamber of the cylinder in the soldering iron lifting cylinder to control the rise / fall of the soldering iron. This not only realizes an automatic soldering iron lifting control method, but also solves the problem of multiple and complicated control processes caused by the need to control two solenoid valves corresponding to each soldering iron lifting cylinder separately in the existing soldering iron lifting system. It enables the soldering iron lifting control to be completed quickly and accurately based on simple control commands, improving user experience and process efficiency.

[0033] Furthermore, before continuing to introduce another soldering iron lifting control method provided by the embodiments of the present invention, we will first briefly introduce the existing soldering iron lifting system and its defects. Figure 3 This is an example diagram of the control structure of a soldering iron lifting system in the prior art, provided for embodiments of the present invention. (See diagram for reference.) Figure 3As shown, the soldering iron lifting system in the prior art includes an air source 301, an air distributor 302, a solenoid valve 303 (the schematic lines in the figure do not completely connect all the solenoid valves), and a soldering iron lifting cylinder 304. Among them, the air source 301 is connected to the air distributor 302 through the air path, and the air distributor 302 divides the air path into three paths (this embodiment takes three soldering iron lifting cylinders as an example), and each path is ultimately used to control one soldering iron lifting cylinder 304. In addition, for each soldering iron lifting cylinder 304, there are two parallel solenoid valves 303 between it and the air distributor 302, which control the lifting operation of the soldering iron lifting cylinder connected to it respectively. Therefore, based on the above introduction of the structure of the soldering iron lifting system in the prior art, it can be seen that in the actual application process, there are the following two problems: (1) There is a large amount of tobacco dust and powder in the cigarette machine production environment. The precision valve core of the solenoid valve and the air path are prone to jamming, blockage or sealing failure under long-term dust erosion. Once the solenoid valve fails, the soldering iron may accidentally strike the machine while it is stopped, posing a significant safety hazard of burning the operator; (2) The use of three independent dual solenoid valves to control three cylinders results in a large number of air pipes, joints and electrical control circuits, and a complex structure. This not only increases the workload of installation and maintenance, but also means more potential failure points (such as solenoid valve coil damage, valve body jamming, joint leakage, etc.), which reduces the overall reliability of the system, increases maintenance costs, and also reduces the working efficiency of the equipment.

[0034] Therefore, based on the above embodiments and feasible methods, this invention proposes a further method for controlling the lifting and lowering of a soldering iron. In this embodiment, the method may specifically include: (a) Sending an energizing command to the lifting solenoid valve and a de-energizing command to the lowering solenoid valve, including: A power-on command is sent to the first relay coil of the rising solenoid valve, so that the normally open contact of the first relay is energized and closed to connect the power circuit of the rising solenoid valve, opening the air outlet to conduct the first air path; and a power-off command is sent to the second relay coil of the falling solenoid valve, so that the normally open contact of the second relay is de-energized and opened to disconnect the power circuit of the falling solenoid valve, closing the air outlet to block the second air path.

[0035] Specifically, the central control device can be a programmable logic controller (PLC), which can send a control signal to the first relay coil corresponding to the rising solenoid valve, energizing the first relay coil. Therefore, after sending the first output signal, the first relay receives the energizing command, and its normally open contact closes (i.e., the first relay switch in the above embodiment), connecting the rising solenoid valve to the power supply. The rising solenoid valve is energized and switches its operating position, opening its outlet and connecting the first air path. Simultaneously, a control signal to the second relay coil corresponding to the falling solenoid valve is sent, de-energizing the second relay coil. Therefore, after sending the second output signal, the second relay receives the de-energizing command, releasing its normally open contact (i.e., the second relay switch in the above embodiment), disconnecting the falling solenoid valve from the power supply. The falling solenoid valve is de-energized and switches its operating position, closing its outlet and blocking the second air path.

[0036] In this embodiment, the coil of the first relay corresponding to the control solenoid valve is energized. After the first relay is energized and attracted, the normally open contact closes, thus connecting the solenoid valve to the power supply. The solenoid valve is energized and switches to operation, thereby realizing the direct transmission of the "upward command" to the pneumatic control valve through pneumatic control. This allows the control of the corresponding solenoid valve to be completed using a single programmable logic control instruction, simplifying the control process and the number of electrical control lines.

[0037] (ii) Sending an energizing command to the descending solenoid valve and a de-energizing command to the ascending solenoid valve, including: A power-on command is sent to the second relay coil of the descending solenoid valve, causing the normally open contact of the second relay to close after being energized, thereby connecting the power circuit of the descending solenoid valve and opening the air outlet to conduct the second air path; and a power-off command is sent to the first relay coil of the ascending solenoid valve, causing the normally open contact of the first relay to open after being de-energized, thereby disconnecting the power circuit of the ascending solenoid valve and closing the air outlet to block the first air path.

[0038] Specifically, the main control device can send a control signal to the second relay coil corresponding to the lowering solenoid valve, which corresponds to energizing the second relay coil. Therefore, after sending the second output point signal, the second relay receives the energizing command, and its normally open contact closes after being energized, connecting the lowering solenoid valve to the power supply. The lowering solenoid valve is energized and switches its operating position, opening its outlet and connecting the second air path. Simultaneously, a control signal to the first relay coil corresponding to the raising solenoid valve is sent, which corresponds to de-energizing the first relay coil. Therefore, after sending the first output point signal, the first relay receives the de-energizing command, and its normally open contact opens after being de-energized, disconnecting the circuit between the raising solenoid valve and the power supply. The raising solenoid valve is de-energized and switches its operating position, closing its outlet and blocking the first air path.

[0039] (iii) A first detection unit is provided between the air outlet of the rising solenoid valve and the first air control port of the air control valve, and a second detection unit is provided between the air outlet of the falling solenoid valve and the second air control port of the air control valve. Both the first and second detection units are electrically connected to the main control unit. After issuing an energizing command to the rising solenoid valve and an de-energizing command to the falling solenoid valve, or after issuing an energizing command to the falling solenoid valve and an de-energizing command to the rising solenoid valve, the method further includes: 1) Before receiving the position detection signal detected by the position detection unit on all soldering iron lifting cylinders, continuously receive the pressure detection signal from the first detection unit or the pressure detection signal from the second detection unit.

[0040] In this embodiment, the position detection unit can be a magnetic switch, a proximity switch-sensor, a displacement sensor, or an inductive proximity switch, etc. Both the first and second detection units can be detection sensors or devices used to detect air pressure. Furthermore, each soldering iron lifting cylinder in this embodiment is equipped with a position detection unit to detect whether the soldering iron on the cylinder has moved into position. The position signal is used to determine whether the soldering iron has been raised or lowered to the correct position.

[0041] Specifically, after issuing an energizing command to the ascending solenoid valve and a de-energizing command to the descending solenoid valve, or after issuing an energizing command to the descending solenoid valve and a de-energizing command to the ascending solenoid valve, the position detection unit and the first detection unit during the ascending process / the second detection unit during the descending process can be activated in real time. Furthermore, before the position detection unit feeds back the position signal to the central control device, it continuously receives the first detection signal (pressure detection signal) fed back by the first detection unit during the ascending process / the second detection signal (pressure detection signal) fed back by the second detection unit during the descending process.

[0042] 2) Based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit, determine and display the cause of the target fault.

[0043] Specifically, the pressure detection signal can detect the pressure of the air passage connecting the rising / falling solenoid valve and the pneumatic control valve. Therefore, based on the air passage pressure (pressure detection signal), the preset pressure range, and the real-time position signal detected by the position detection unit, the cause of the abnormality after an abnormality occurs during the rising / falling of the soldering iron can be comprehensively determined.

[0044] In this embodiment, a pressure detection unit is installed between the solenoid valve and the pneumatic control valve's control port. This allows for real-time detection of the pressure between the air lines when the solenoid valve is driven to control the pneumatic control valve, thus determining the solenoid valve's operating status during the pneumatic control process and providing detection data for determining solenoid valve failure. Furthermore, a position detection unit is installed for the soldering iron lifting cylinder, enabling real-time detection of whether the soldering iron has reached its designated lifting position within the cylinder. This provides a data foundation for further monitoring the soldering iron's operating status during the lifting process, and provides a multi-dimensional, diverse, and sufficient detection signal basis for determining the cause of the target fault.

[0045] For example, the cause of the target fault is determined based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit, including: (1) If the pressure detection signal does not meet the preset pressure range and the air source pressure is normal, the cause of the target fault is determined to be a solenoid valve fault.

[0046] The preset pressure range is a pressure range statistically derived from the normal pressure signal data collected during the experiment or test.

[0047] Specifically, if the signal data corresponding to the pressure detection signal is not within the preset pressure range, it indicates that there is an abnormality in the pressure. Therefore, the problem may be in the solenoid valve, the air source, or the air line. Thus, the cause of the target fault can be further determined based on the air source pressure.

[0048] For example, in one implementation, after the solenoid valve is energized, if the pressure detection signal is less than the minimum value of the preset pressure range, the specific cause can be determined by checking whether the air source pressure is normal. If the air source pressure is normal and the air path is normal, the target fault is determined to be a solenoid valve malfunction. In another implementation, after the solenoid valve is de-energized, if the pressure detection signal is greater than the maximum value of the preset pressure range, the target fault cause of the de-energized solenoid valve sticking can be determined by the continuous pressure change after the command is issued (e.g., pressure does not drop) and the air path and air source pressure are normal.

[0049] Optionally, in one case, if the pressure detection signal does not meet the preset pressure range, but there is at least one abnormality in the air source pressure, air circuit or cylinder operation, (2) can be executed directly.

[0050] (2) If the pressure detection signal meets the preset pressure range, the abnormal state of the cylinder is determined according to the change of the real-time position signal, and the abnormal state of the cylinder is taken as the target fault cause.

[0051] In this embodiment, the abnormal cylinder state refers to the state in which the cylinder malfunctions due to abnormalities in other components of the soldering iron lifting system, except for the solenoid valve.

[0052] Specifically, if the pressure detection signal meets the preset pressure range, or as mentioned above, "the pressure detection signal does not meet the preset pressure range, but there is an abnormality at other locations", the specific cause of the cylinder abnormality can be determined based on the changes in the real-time position signal and the data detected by other optional detection units, and then the cylinder abnormality can be taken as the target fault cause.

[0053] For example, regarding an energized solenoid valve, one implementation is as follows: if the pressure detection signal (detected by the detection unit between the energized solenoid valve and the pneumatic control port) meets the preset pressure range, but the real-time position signal remains unchanged (i.e., the cylinder does not move), then it can be checked whether the pneumatic control valve is stuck, the cylinder is jammed, or the load is stuck, and the actual state can be identified as the target fault cause. Another implementation is as follows: if the real-time position signal changes but the rate of change is lower than the normal rate of change, then the pressure change rate and cylinder action time are calculated based on the pressure detection signal to determine whether there is an abnormality such as insufficient air supply flow, air leakage, or excessive load, and the actual abnormality is taken as the target fault cause. Regarding a de-energized solenoid valve, one implementation is as follows: if the pressure detection signal (detected by the detection unit between the de-energized solenoid valve and the pneumatic control port) drops to 0, but the cylinder does not retract, then it is determined whether the air path connecting the pneumatic control valve and the solenoid valve is venting. If venting is normal but the cylinder does not retract, then it can be determined that the pneumatic control valve is stuck or the cylinder spring is faulty. Another approach is to check if the pressure detection signal drops normally, but the cylinder retraction speed is lower than the normal retraction speed. In this case, it can be determined whether the exhaust port is blocked, thus determining whether the problem is poor exhaust or a problem with the pneumatic control valve throttling.

[0054] Optionally, regarding the target fault cause in actual situations, if the pressure detection signal is abnormal, it may be due to an abnormality in the solenoid valve, air source, or air circuit. Therefore, it is possible to determine whether the value of the pressure detection signal matches the control command issued by the central control equipment or to check whether the air source is abnormal in order to further determine the target fault cause. If the pressure detection signal is normal, it may be due to an abnormality in the pneumatic control valve, cylinder, or load. In this case, the specific target fault cause can be determined based on the changes in the real-time position signal. If the real-time position signal is abnormal, it is necessary to further check whether there is a problem with the sensor, components, or wiring in order to determine the target fault cause.

[0055] In this embodiment, the specific cause of the target fault is determined by using diverse detection signals from different dimensions, such as pressure detection signals and position detection signals. This achieves the use of the "elimination method" to detect the detection unit that can be detected in its operating state, thereby eliminating normal components and identifying abnormal components and the cause of the target fault. This realizes automated fault detection and improves the automation and efficiency of fault detection.

[0056] (iv) Optionally, after determining the cause of the target failure, the method further includes: An abnormal alarm is sent to the pneumatic control valve to activate its self-locking function, suspend valve core movement, and lock the working port pressure so that the pressure of each soldering iron lifting cylinder is constant and the soldering iron is locked.

[0057] Specifically, after determining the cause of the target malfunction, an abnormal warning is sent to the pneumatic control valve. At this time, the pneumatic control valve will automatically activate the self-locking function to lock the current working state, that is, to suspend the valve core shifting operation and lock the working port pressure. At this time, the pressure of each soldering iron lifting cylinder is constant, that is, no matter what state it is in, the pressure of the three cylinders is maintained, the soldering iron is locked in the state at that time, and the safety risk is eliminated.

[0058] In this embodiment, after determining the cause of the target fault, an abnormal warning will be promptly sent to the pneumatic control valve to activate the self-locking function of the pneumatic control valve to suspend the valve core displacement operation and lock the working port pressure. This can prevent safety risks caused by abnormal system faults, such as the sudden drop in the soldering iron due to loss of control, when an abnormality occurs. It also enables the timely locking of the pneumatic control valve after a fault occurs, ensuring and improving the operator's safety when the system malfunctions.

[0059] (v) Optionally, after demonstrating the cause of the target failure, the following may also be included: Receive feedback instructions from the user based on the cause of the target fault, and send normal instructions to the pneumatic control valve to disable the self-locking function, open the valve core displacement, and open the working port pressure so that the pressure of each soldering iron lifting cylinder returns to normal and the soldering iron lock is released.

[0060] In this embodiment, the user refers to the operator who has the authority to operate the soldering iron lifting system.

[0061] Specifically, after demonstrating the cause of the target malfunction to the operator, the operator will inspect or repair the components in the specific soldering iron lifting system according to the cause of the malfunction. After confirming that everything has returned to normal after inspection or repair, the operator will send a feedback command to the central control unit. Therefore, the central control unit can issue a normal command to the pneumatic control valve based on the feedback command, so that the pneumatic control valve closes its self-locking function, that is, opens the valve core displacement and opens the working port pressure. In this way, the pressure of each soldering iron lifting cylinder returns to normal, the soldering iron lock is released, and the lifting operation can continue.

[0062] In this embodiment, after the operator confirms that the system maintenance is complete, a normal command is sent to the pneumatic control valve based on the main control equipment to close the self-locking function of the pneumatic control valve. This enables the pneumatic control valve to be quickly and timely restarted when the system is confirmed to be without abnormalities, while ensuring the operator's safe operation, thus ensuring the operating efficiency of the system throughout its operation.

[0063] Alternatively, a possible implementation of this embodiment is illustrated with a simple example: For the existing soldering iron lifting system, the original three sets of two-position four-way pilot-operated solenoid valves controlling the cylinder lifting were removed. After the air source was processed, a four-way connector was connected to the main air intake pipe, dividing the air path into three paths, which were respectively connected to the air inlet of the two-position four-way lowering solenoid valve, the air inlet of the two-position four-way raising solenoid valve, and the air inlet of the air control valve. The air outlets of the two solenoid valves were respectively connected to different air control ports of the air control valve. The rod chambers of the three soldering iron lifting cylinders were connected in parallel by a four-way connector to form an air path connected to one working port of the air control valve. Similarly, the rodless chambers of the three cylinders were connected in parallel to the other working port of the air control valve. Silencers were installed on the exhaust ports of the air control valve and the solenoid valve. The relay coils corresponding to the two solenoid valves were connected to the main control unit.

[0064] During normal operation: When the main control device's signal output point Q147.2 sends a signal for the soldering iron to descend, the soldering iron cover closes, the relay switch corresponding to the descending solenoid valve closes, and the descending solenoid valve is energized. The air supply is divided into three paths: one enters through the descending solenoid valve's inlet and exits through the working port of the descending solenoid valve into the second air control port of the air control valve; another path enters through the ascending solenoid valve's inlet and exits through the working port of the ascending solenoid valve, this path is blocked by a plug (the ascending solenoid valve is de-energized and the plug closes); the third path enters the air control valve's inlet and exits through one of the working ports of the air control valve into the rod chamber of the cylinder, controlling the cylinder to rise and the soldering iron to descend. When the main control device's signal output point Q147.3 sends a signal for the soldering iron to rise, the soldering iron cover closes, the relay switch corresponding to the ascending solenoid valve closes, and the ascending solenoid valve is energized. The air supply is divided into three paths: one path enters through the air inlet of the rising solenoid valve of the soldering iron, and outputs through the working port of the rising solenoid valve into the first air control port of the air control valve; another path enters through the air inlet of the falling solenoid valve into the working port of the falling solenoid valve, and this path is blocked by a plug (the plug closes when the falling solenoid valve is de-energized); the third path enters through the air inlet of the air control valve, and enters the rodless chamber of the cylinder through another working port of the air control valve, controlling the cylinder to contract and the soldering iron to rise.

[0065] Fault scenario: When the cause of the target fault is determined during operation, such as the sudden failure of the control solenoid valve, the main control equipment sends an abnormality warning to the pneumatic control valve. The pneumatic control valve immediately activates its self-locking function, cutting off its own valve core movement and locking the pressure at its connection port with the cylinder. At this time, regardless of the current state, the pressure of all three cylinders is maintained, the soldering iron is locked in its current state, and the safety risk is eliminated.

[0066] In this embodiment, the improved soldering iron lifting system and its control logic method, firstly, fundamentally solve the problem of safety function loss caused by dust jamming failure of the original solenoid valve, based on the self-locking function of the pneumatic control valve when a target fault occurs. Even if the solenoid valve fails completely, the system can lock the soldering iron in the current position (usually the raised position), achieving intrinsic safety. Secondly, the original six sets of three solenoid valves are simplified to one performing the lifting operation and one performing the lowering operation, significantly reducing the number of pneumatic components and connecting pipes, greatly simplifying the system structure. This reduces potential leakage points, electrical fault points, and mechanical fault points by about two-thirds, significantly extending the overall mean time between failures and substantially improving reliability. Finally, the structural modification of the soldering iron lifting system in this embodiment only involves the replacement of pneumatic components and the rewiring of the air circuit, without requiring changes to the core program of the electrical control system or the mechanical structure of the equipment. The modification cycle is short, the investment cost is low, and it is very suitable for upgrading existing equipment.

[0067] Figure 4 This is a schematic diagram of a soldering iron lifting control device provided in an embodiment of the present invention. Figure 4As shown, this device is used as the central control unit in a soldering iron lifting system. The soldering iron lifting system also includes a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders. The working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder via a connector to form a pneumatic path. The outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve via a first pneumatic path, and the outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve via a second pneumatic path. The central control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively. The device includes: The control module 401 is used to send an energizing command to the rising solenoid valve and an de-energizing command to the falling solenoid valve, so that the rising solenoid valve opens its air outlet to connect the first air path, and causes the valve core of the pneumatic control valve to move after opening the first pneumatic control port to control all soldering iron lifting cylinders to retract and raise the soldering iron; or, to send an energizing command to the falling solenoid valve and an de-energizing command to the rising solenoid valve, so that the falling solenoid valve opens its air outlet to connect the second air path, and causes the valve core of the pneumatic control valve to move after opening the second pneumatic control port to control all soldering iron lifting cylinders to raise and lower the soldering iron.

[0068] Optionally, the device further includes a determining module, wherein a first detection unit is provided between the air outlet of the rising solenoid valve and the first air control port of the air control valve, and a second detection unit is provided between the air outlet of the falling solenoid valve and the second air control port of the air control valve. Both the first and second detection units are electrically connected to the main control unit. The determining module is also used for: Before receiving the position signal detected by the position detection unit on all soldering iron lifting cylinders, continuously receive the pressure detection signal from the first detection unit or the pressure detection signal from the second detection unit; based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit, determine and display the cause of the target fault.

[0069] Optionally, based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit, the cause of the target fault is determined, and the module is specifically used for: If the pressure detection signal does not meet the preset pressure range and the air source pressure is normal, the target fault is determined to be a solenoid valve malfunction; if the pressure detection signal meets the preset pressure range, the abnormal state of the cylinder is determined based on the changes in the real-time position signal, and the abnormal state of the cylinder is taken as the target fault.

[0070] Optionally, the control module 401 sends an energizing command to the lifting solenoid valve and a de-energizing command to the lowering solenoid valve. Specifically, the control module 401 is used for: A power-on command is sent to the first relay coil of the rising solenoid valve, so that the normally open contact of the first relay is energized and closed to connect the power circuit of the rising solenoid valve, opening the air outlet to conduct the first air path; and a power-off command is sent to the second relay coil of the falling solenoid valve, so that the normally open contact of the second relay is de-energized and opened to disconnect the power circuit of the falling solenoid valve, closing the air outlet to block the second air path.

[0071] Optionally, the control module 401 sends an energizing command to the lowering solenoid valve and a de-energizing command to the raising solenoid valve. Specifically, the control module 401 is used for: A power-on command is sent to the second relay coil of the descending solenoid valve, causing the normally open contact of the second relay to close after being energized, thereby connecting the power circuit of the descending solenoid valve and opening the air outlet to conduct the second air path; and a power-off command is sent to the first relay coil of the ascending solenoid valve, causing the normally open contact of the first relay to open after being de-energized, thereby disconnecting the power circuit of the ascending solenoid valve and closing the air outlet to block the first air path.

[0072] Optionally, the device also includes an alarm module, which, after determining the cause of the target failure, is further used to: An abnormal alarm is sent to the pneumatic control valve to activate its self-locking function, suspend valve core movement, and lock the working port pressure so that the pressure of each soldering iron lifting cylinder is constant and the soldering iron is locked.

[0073] Optionally, after displaying the cause of the target failure, the alarm module is also used for: Receive feedback instructions from the user based on the cause of the target fault, and send normal instructions to the pneumatic control valve to disable the self-locking function, open the valve core displacement, and open the working port pressure so that the pressure of each soldering iron lifting cylinder returns to normal and the soldering iron lock is released.

[0074] The soldering iron lifting control device provided in the embodiments of the present invention can execute the soldering iron lifting control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0075] It is worth noting that in the embodiments of the soldering iron lifting control device described above, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0076] Figure 5This is a schematic diagram of the structure of the central control unit provided in an embodiment of the present invention. In this embodiment, the central control unit is presented in the form of an electronic device. The central control unit is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The central control unit can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the invention described and / or claimed herein.

[0077] like Figure 5 As shown, the central control unit 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded into the RAM 13 from storage unit 18. The RAM 13 can also store various programs and data required for the operation of the central control unit 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0078] Multiple components in the central control unit 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless transceiver, etc. The communication unit 19 allows the central control unit 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0079] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the soldering iron lifting control method.

[0080] In some embodiments, the soldering iron raising / lowering control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the main control unit 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the soldering iron raising / lowering control method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the soldering iron raising / lowering control method by any other suitable means (e.g., by means of firmware).

[0081] This invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements, for example, the soldering iron lifting control method provided in this invention.

[0082] The computer storage medium of this invention can be any combination of one or more computer-readable media. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0083] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0084] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0085] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the soldering iron lifting control method provided in any embodiment of this invention.

[0086] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0087] Those skilled in the art will understand that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby allowing them to be stored in a storage device for execution by a computing device, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0088] Furthermore, the acquisition, storage, use, and processing of data in the technical solution of this invention all comply with the relevant provisions of national laws and regulations.

[0089] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for controlling the lifting and lowering of a soldering iron, characterized in that, A central control unit is applied to a soldering iron lifting system, the soldering iron lifting system further including a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders; the working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder through a connector to form a pneumatic path; the air outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve through a first pneumatic path, and the air outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve through a second pneumatic path; the central control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively; the method includes: A power-on command is sent to the rising solenoid valve and a power-off command is sent to the falling solenoid valve, causing the rising solenoid valve to open the air outlet to connect the first air path, and causing the air control valve to open the first air control port and then shift the valve core to control all soldering iron lifting cylinders to retract and raise the soldering iron; or... A power-on command is sent to the lowering solenoid valve and a power-off command is sent to the raising solenoid valve, so that the lowering solenoid valve opens the air outlet to connect the second air passage, and the valve core of the air control valve is moved after the second air control port is opened to control all soldering iron lifting cylinders to raise the soldering iron and lower it.

2. The method according to claim 1, characterized in that, A first detection unit is provided between the air outlet of the rising solenoid valve and the first air control port of the pneumatic control valve, and a second detection unit is provided between the air outlet of the descending solenoid valve and the second air control port of the pneumatic control valve. Both the first detection unit and the second detection unit are electrically connected to the main control unit. The method further includes: Before receiving the position signal detected by the position detection unit on all soldering iron lifting cylinders, continuously receive the pressure detection signal from the first detection unit or the pressure detection signal from the second detection unit; Based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit, the cause of the target fault is determined and displayed.

3. The method according to claim 2, characterized in that, The step of determining the cause of the target fault based on the pressure detection signal, the preset pressure range, and the real-time position signal detected by the position detection unit includes: If the pressure detection signal does not meet the preset pressure range, and the air source pressure is normal, then the cause of the target fault is determined to be a solenoid valve fault. If the pressure detection signal meets the preset pressure range, the abnormal state of the cylinder is determined based on the change of the real-time position signal, and the abnormal state of the cylinder is taken as the target fault cause.

4. The method according to claim 1, characterized in that, The step of issuing an energizing command to the rising solenoid valve and an de-energizing command to the falling solenoid valve includes: A power-on command is sent to the first relay coil of the rising solenoid valve, causing the normally open contact of the first relay to close after energization, thereby connecting the power circuit of the rising solenoid valve and opening the air outlet to conduct the first air passage; and A de-energization command is sent to the second relay coil of the descending solenoid valve, causing the normally open contact of the second relay to open after de-energization, thereby disconnecting the power circuit of the descending solenoid valve and closing the air outlet to block the second air path.

5. The method according to claim 1, characterized in that, The step of issuing an energizing command to the descending solenoid valve and an de-energizing command to the ascending solenoid valve includes: A power-on command is sent to the second relay coil of the lowering solenoid valve, causing the normally open contact of the second relay to close after energization, thereby connecting the power circuit of the lowering solenoid valve and opening the air outlet to conduct the second air passage; and, A de-energizing command is sent to the first relay coil of the rising solenoid valve, so that the normally open contact of the first relay is de-energized and opens to disconnect the power circuit of the rising solenoid valve, thereby closing the air outlet and blocking the first air path.

6. The method according to claim 2, characterized in that, After determining the cause of the target failure, the following is also included: An abnormal alarm is sent to the pneumatic control valve to activate its self-locking function, suspend valve core displacement, and lock the working port pressure so that the pressure of each soldering iron lifting cylinder is constant and the soldering iron is locked.

7. The method according to claim 6, characterized in that, After demonstrating the cause of the target failure, it also includes: The system receives feedback instructions from the user based on the cause of the target fault and sends a normal command to the pneumatic control valve to disable the self-locking function, enable valve core displacement, and open the working port pressure so that the pressure of each soldering iron lifting cylinder returns to normal and the soldering iron lock is released.

8. A soldering iron lifting control device, characterized in that, A central control unit is applied to a soldering iron lifting system, which further includes a pneumatic control valve, an upward solenoid valve, a downward solenoid valve, and at least two soldering iron lifting cylinders. The working port of the pneumatic control valve is connected to the working chamber of each soldering iron lifting cylinder through a connector to form a pneumatic path. The air outlet of the upward solenoid valve is connected to the first pneumatic control port of the pneumatic control valve through a first pneumatic path, and the air outlet of the downward solenoid valve is connected to the second pneumatic control port of the pneumatic control valve through a second pneumatic path. The central control unit is electrically connected to the pneumatic control valve, the upward solenoid valve, and the downward solenoid valve respectively. The device includes: The control module is used to send an energizing command to the rising solenoid valve and an de-energizing command to the falling solenoid valve, so that the rising solenoid valve opens the air outlet to connect the first air path, and causes the valve core of the pneumatic control valve to shift after opening the first pneumatic control port to control all soldering iron lifting cylinders to retract and raise the soldering iron; or, to send an energizing command to the falling solenoid valve and an de-energizing command to the rising solenoid valve, so that the falling solenoid valve opens the air outlet to connect the second air path, and causes the valve core of the pneumatic control valve to shift after opening the second pneumatic control port to control all soldering iron lifting cylinders to raise and lower the soldering iron.

9. A master control unit, characterized in that, include: One or more processors; Memory, used to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the soldering iron lifting control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the soldering iron lifting control method as described in any one of claims 1 to 7.

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