A glue coating quantifying machine softener automatic filling circulation system and method

Abstract

The application discloses a kind of softener automatic filling circulation systems and methods of gluing quantifying machine, the system includes: main controller, intermediate controller, power supply unit, gluing subsystem and lubricating subsystem, gluing subsystem includes the gluing controller for controlling gluing work, lubricating subsystem includes lubricating oil pump and relay, relay includes control coil and main contact, one end of control coil is connected with the output end of intermediate controller, the other end of control coil is electrically connected with the common end of intermediate controller;Intermediate controller is used to receive the gluing state signal sent by gluing controller and the operating state signal of lubricating oil pump, main controller is used to judge whether gluing subsystem satisfies lubricating condition according to gluing state signal and / or operating state signal, if yes, then send lubricating start signal to intermediate controller, intermediate controller is also used to control main contact to be connected according to lubricating start signal.

Description

Technical Field

[0001] This invention relates to the field of softener control technology, and in particular to an automatic softener dispensing and circulation system and method for a glue applicator. Background Technology

[0002] Adhesive coating equipment is widely used in automotive parts sealing, industrial packaging, and other fields. Its core components, such as the plunger-type metering mechanism and sealing kits, require continuous wetting and cleaning with a lubricating medium during long-term operation to prevent sealant buildup and subsequent sealing failures or reduced coating accuracy. In actual use, blockage of the lubrication lines or failure to lubricate in a timely manner can easily lead to dry adhesive buildup within the adhesive lines, severely affecting the lifespan of the sealing kits and the coating quality.

[0003] Existing lubrication solutions rely on the synchronous start and stop of the lubricating oil pump with the glue-applying equipment. For example, by designing a softener circulation system in a plunger-type servo metering machine, the leakage problem caused by adhesive adhesion in the sealing mechanism is solved, achieving automatic filling and circulation. However, the oil pump's start and stop are synchronized with the glue-applying equipment's valve operation. Frequent start and stop shortens the oil pump's lifespan, and the oil pump cannot start when the equipment stops, leading to dry adhesive blockage in the oil circuit. This results in the oil pump frequently starting and stopping with the glue-applying equipment, leading to a high risk of oil circuit blockage and high maintenance costs, becoming a core bottleneck restricting the long-term stable operation of the glue-applying equipment. Summary of the Invention

[0004] This application provides an automatic filling and circulation system and method for a glue applicator. This system can effectively solve the problem of frequent oil pump starts, improve the phenomenon that the oil pump cannot start during equipment shutdown, reduce the risk of oil circuit blockage, reduce equipment maintenance costs, and increase the life of sealing kits.

[0005] In a first aspect, the present invention provides the following technical solution through an embodiment of the present invention: An automatic dispensing and circulation system for a coating metering machine for softening agents includes: a main controller, an intermediate controller, a power supply unit, a coating subsystem, and a lubrication subsystem. The main controller is electrically connected to the intermediate controller. The coating subsystem includes a coating controller for controlling the coating operation. The lubrication subsystem includes a lubricating oil pump and a relay. The power supply unit provides operating power to the lubricating oil pump. The lubricating oil pump, the relay, and the coating controller are all electrically connected to the intermediate controller. The relay includes a control coil and main contacts. One end of the control coil is connected to the output terminal of the intermediate controller, and the other end of the control coil is connected to the output terminal of the intermediate controller. The common terminal of the controller is electrically connected, and the main contact is connected in the main power supply circuit between the power supply unit and the lubricating oil pump to control the on / off state of the main power supply circuit. The intermediate controller is used to receive the glue application status signal and the operating status signal of the lubricating oil pump sent by the glue application controller, and send them to the main controller. The main controller is used to determine whether the glue application subsystem meets the lubrication conditions based on the glue application status signal and / or the operating status signal. If so, it sends a lubrication start signal to the intermediate controller. The intermediate controller is also used to output a control signal to the control coil based on the lubrication start signal to control the main contact to be turned on.

[0006] Preferably, the glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve, and the lubrication subsystem further includes a storage tank; the lubricating oil pump is connected to the metering machine, the filling valve, and the glue gun valve in sequence via a first pipeline, and the output end of the glue gun valve is connected to the storage tank via a second pipeline; the lubricating oil pump is used to draw oil from the storage tank and circulate the lubricating oil among the metering machine, the filling valve, the glue gun valve, and the lubricating oil pump.

[0007] Preferably, the lubrication subsystem further includes a filter, and the output end of the glue gun valve is connected to the filter and the liquid storage tank in sequence via a second pipeline.

[0008] Preferably, the lubrication subsystem further includes a level detector and a pressure detector. The level detector is used to detect the level information of the oil in the reservoir, and the pressure detector is used to detect the pressure information of the lubricating oil pump. Both the level detector and the pressure detector are electrically connected to the intermediate controller. The intermediate controller is also used to receive the level information and the pressure information and feed them back to the main controller. The main controller is also used to send a lubricating oil pump disconnection signal to the intermediate controller when it detects that the level information and / or the pressure information is abnormal, so as to control the lubricating oil pump to stop running.

[0009] Preferably, the power supply unit includes a grounding terminal, a neutral input terminal, and a live input terminal; the grounding port of the lubricating oil pump is connected to the grounding terminal, the neutral input terminal of the lubricating oil pump is connected to the neutral input terminal, the live input terminal of the lubricating oil pump is connected to the live input terminal, the control terminal of the lubricating oil pump is connected to one end of the main contact, and the other end of the main contact is connected to the neutral input terminal of the power supply unit.

[0010] Secondly, through an embodiment of the present invention, the present invention provides the following technical solution: An automatic dispensing and circulation method for a softener in a dispensing meter, applied in an intermediate controller of a system according to any of the first aspects mentioned above, includes: acquiring a dispensing status signal from a dispensing controller and an operating status signal from a lubricating oil pump, and sending them to a main controller, so that the main controller determines whether the dispensing subsystem meets lubrication conditions based on the dispensing status signal and / or the operating status signal; if a lubrication start signal is received from the main controller, a control signal is output to the control coil of a relay to control the main contacts of the relay to close.

[0011] Preferably, the glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve; the lubrication subsystem further includes a reservoir; the lubrication subsystem further includes a level detector and a pressure detector; the level detector is used to detect the level information of the oil in the reservoir; the pressure detector is used to detect the pressure information of the lubricating oil pump; both the level detector and the pressure detector are electrically connected to the intermediate controller; the method further includes: receiving the level information and the pressure information and feeding them back to the main controller, so that the main controller sends a lubricating oil pump disconnection signal to the intermediate controller when it detects an abnormality in the level information and / or the pressure information; if the lubricating oil pump disconnection signal sent by the main controller is received, a control signal is output to the control coil to control the main contact to disconnect.

[0012] Thirdly, through one embodiment of the present invention, the following technical solution is provided: An automatic dispensing and circulation method for a coating metering machine for softening agents, applied in the main controller of the system described in any of the first aspects above, includes: receiving a coating status signal of the coating controller and an operating status signal of the lubricating oil pump sent by an intermediate controller; determining whether the coating subsystem meets the lubrication conditions based on the coating status signal and / or the operating status signal; if so, sending a lubrication start signal to the intermediate controller, such that the intermediate controller is also used to output a control signal to the control coil based on the lubrication start signal to control the main contacts to be connected.

[0013] Preferably, the adhesive application status signal includes the number of times the adhesive is applied and the application time of the adhesive application subsystem, and the operating status signal includes the stop time of the lubricating oil pump. The step of determining whether the adhesive application subsystem meets the lubrication conditions based on the adhesive application status signal and / or the operating status signal includes: if the number of times the adhesive is applied by the adhesive application subsystem is greater than or equal to a preset number of times, the application time is greater than a first preset time, or the stop time of the lubricating oil pump is greater than a second preset time, then it is determined that the adhesive application subsystem meets the lubrication conditions.

[0014] Preferably, the glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve; the lubrication subsystem further includes a reservoir; the lubrication subsystem further includes a level detector and a pressure detector; the level detector is used to detect the level information of the oil in the reservoir; the pressure detector is used to detect the pressure information of the lubricating oil pump; both the level detector and the pressure detector are electrically connected to the intermediate controller; the method further includes: receiving the level information and the pressure information sent by the intermediate controller; if an abnormality is detected in the level information and / or the pressure information, sending a lubricating oil pump disconnection signal to the intermediate controller to control the lubricating oil pump to stop running.

[0015] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: The automatic dispensing and circulation system for softener in a dispensing meter provided in this invention includes: a main controller, an intermediate controller, a power supply unit, a dispensing subsystem, and a lubrication subsystem. The main controller and the intermediate controller are electrically connected. The dispensing subsystem includes a dispensing controller for controlling the dispensing operation, and the lubrication subsystem includes a lubricating oil pump and a relay. The intermediate controller receives the dispensing status signal and the lubricating oil pump's operating status signal from the dispensing controller and sends them to the main controller. The main controller determines whether the dispensing subsystem meets the lubrication conditions based on the dispensing status signal and / or the operating status signal. If so, it sends a lubrication start signal to the intermediate controller. The intermediate controller also outputs a control signal to the control coil based on the lubrication start signal to control the main contacts to close. This application designs a separate control loop for controlling the start and stop of the lubrication subsystem. Signals from both the lubrication and adhesive application subsystems are transmitted to the main controller via an intermediate controller. The lubrication subsystem does not participate in the control of the adhesive application subsystem and can perform customized lubrication activation based on adhesive application feedback. This effectively avoids the problem of frequent operation of the lubrication pump caused by the synchronous start and stop of the lubrication pump and adhesive application subsystem, and prevents the lubrication from being passively activated when the adhesive application equipment is on, even when lubrication is not needed. This system enables on-demand lubrication; regardless of whether the adhesive application subsystem is on or off, the lubrication pump can be activated when lubrication is required, reducing equipment maintenance costs, increasing pump lifespan, and lowering the risk of oil circuit blockage. Attached Figure Description

[0016] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a simplified structural diagram of the automatic softener dispensing and circulation system of the glue dispensing metering machine in an embodiment of the present invention; Figure 2 This is a schematic diagram of the automatic dispensing and circulation system for the softener in the glue dispensing metering machine according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the signal flow direction in the system according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the adhesive application subsystem and the lubrication subsystem in an embodiment of the present invention; Figure 5 This is a control flowchart of the intermediate controller in the automatic refueling cycle method of this invention embodiment; Figure 6This is a control flowchart of the main controller in the automatic refueling cycle method of this invention. Detailed Implementation

[0018] This application provides an automatic filling and circulation system and method for a glue applicator. This system can effectively solve the problem of frequent oil pump starts, improve the phenomenon that the oil pump cannot start during equipment shutdown, reduce the risk of oil circuit blockage, reduce equipment maintenance costs, and increase the life of sealing kits.

[0019] The technical solution of this application embodiment is to solve the above-mentioned technical problems, and the general idea is as follows: An automatic softener dispensing and circulation system for a glue applicator includes: a main controller, an intermediate controller, a power supply unit, a glue applicator subsystem, and a lubrication subsystem. The main controller and the intermediate controller are electrically connected. The glue applicator subsystem includes a glue applicator controller for controlling the glue applicator operation. The lubrication subsystem includes a lubricating oil pump and a relay. The power supply unit provides operating power to the lubricating oil pump. The lubricating oil pump, the relay, and the glue applicator controller are all electrically connected to the intermediate controller. The relay includes a control coil and a main contact. One end of the control coil is connected to the output terminal of the intermediate controller, and the other end of the control coil is electrically connected to the common terminal of the intermediate controller. The main contact is connected in the main power supply circuit between the power supply unit and the lubricating oil pump to control the on / off state of the main power supply circuit. The intermediate controller receives the glue applicator status signal and the lubricating oil pump operating status signal from the glue applicator controller and sends them to the main controller. The main controller determines whether the glue applicator subsystem meets the lubrication conditions based on the glue applicator status signal and / or the operating status signal. If so, it sends a lubrication start signal to the intermediate controller. The intermediate controller also outputs a control signal to the control coil based on the lubrication start signal to control the main contact to close.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] Firstly, the present invention provides an automatic dispensing and circulation system for a softener in a glue applicator, specifically, as follows: Figure 1 , Figure 2 and Figure 3 As shown, the system includes: a main controller 10, an intermediate controller 20, a power supply unit (not shown), an adhesive application subsystem 30, and a lubrication subsystem 40. The main controller 10 is electrically connected to the intermediate controller 20. The adhesive application subsystem 30 includes an adhesive application controller 301 for controlling the adhesive application process. The lubrication subsystem 40 includes a lubricating oil pump 401 and a relay 402. The power supply unit is used to provide operating power to the lubricating oil pump 401. The lubricating oil pump 401, the relay 402, and the adhesive application controller 301 are all electrically connected to the intermediate controller 20. Relay 402 includes a control coil and a main contact KM1. One end of the control coil is connected to the output terminal of the intermediate controller 20, and the other end of the control coil is electrically connected to the common terminal of the intermediate controller 20. The main contact KM1 is connected in the main power supply circuit between the power supply unit and the lubricating oil pump 401, and is used to control the on / off state of the main power supply circuit. Through this connection method, the intermediate controller 20 can control the opening or closing of the main contact via the control coil, thereby controlling the start and stop of the lubricating oil pump. The intermediate controller 20 receives the glue application status signal and the operating status signal of the lubricating oil pump 401 from the glue application controller 301, and sends them to the main controller 10. The main controller 10 determines whether the glue application subsystem 30 meets the lubrication conditions based on the glue application status signal and / or the operating status signal. If the conditions are met, it sends a lubrication start signal to the intermediate controller 20. Based on the lubrication start signal, the intermediate controller 20 outputs a control signal to the control coil to control the main contact KM1 to close, thereby starting the lubricating oil pump.

[0022] For example, such as Figure 2 As shown, the intermediate controller can be the robot MOADE A; the main controller can be a PLC programmable controller.

[0023] As an example, such as Figure 3 As shown, the main controller and the intermediate controller exchange network communication signals. The lubricating oil pump is electrically connected to the intermediate controller via a relay, and the relay is also electrically connected to the intermediate controller. The intermediate controller is also connected to the glue application controller (not shown in the figure), meaning the signal can be transmitted through... Figure 3 The signal lines shown are used for transmission, including 4-core signal lines, 5-core signal lines, and network communication signals.

[0024] This system architecture enables a customizable and adjustable start-up lubrication subsystem, separating it from the adhesive application subsystem. The lubrication subsystem does not participate in the control of the adhesive application subsystem; instead, it is controlled by an external control unit (such as a robot MOADEA or a PLC programmable controller). The adhesive application equipment only provides adhesive application information feedback to the external control unit, and the lubrication subsystem is activated based on the feedback results and actual needs.

[0025] In the specific implementation process, such as Figure 4The diagram illustrates the circulation of lubricating oil. The dispensing subsystem 30 may include a metering machine 302, a filling valve 303, and a glue gun valve 304. The lubrication subsystem also includes a reservoir 403. A lubricating oil pump 401 is connected sequentially to the metering machine 302, the filling valve 303, and the glue gun valve 304 via a first pipeline. The output of the glue gun valve 304 is connected to the reservoir 403 via a second pipeline. The lubricating oil pump 401 draws oil from the reservoir 403, circulating the lubricating oil among the metering machine 302, the filling valve 303, the glue gun valve 304, and the lubricating oil pump 401. For example, a PU tube can be used to connect the lubrication circuits of the metering machine 302, the filling valve 303, and the glue gun valve 304 in series. This opens the oil circuits of the metering machine 302, the filling valve 303, and the glue gun valve 304, allowing the softener (lubricating oil) to flow from the lubricating oil pump 401 and sequentially enter the metering machine 302, the filling valve 303, and the glue gun valve 304, forming a complete circulation path. This ensures that each component is adequately lubricated and removes internal dry glue and foreign matter (avoiding internal dry glue and foreign matter from clogging the oil circuit and preventing the softener from circulating and lubricating normally).

[0026] Among them, the metering machine is used to accurately supply a fixed volume of adhesive material, the filling valve is used to control the feeding and replenishment of adhesive material, and the glue gun valve is used for terminal glue dispensing / cut-off and glue type control.

[0027] As an example, the glue applicator is electrically connected to the metering machine, the filling valve, and the glue gun valve, respectively, to control the opening and closing states of the metering machine, the filling valve, and the glue gun valve.

[0028] Furthermore, the lubrication subsystem may also include a filter, with the output end of the glue gun valve connected sequentially to the filter and the reservoir via a second pipeline. The filter intercepts dry glue and foreign matter in the circulation system, purifying the lubricating oil before reuse, preventing internal blockage by dry glue and foreign matter, and ensuring normal lubrication circulation. For example, the filter can be a mesh filter, a fiber depth filter, etc., and this application is not limited to any particular type.

[0029] Furthermore, the lubrication subsystem may also include a level detector and a pressure detector. The level detector is used to detect the level information of the oil in the reservoir, and the pressure detector is used to detect the pressure information of the lubricating oil pump. Both the level detector and the pressure detector are electrically connected to the intermediate controller. The intermediate controller receives the level information and pressure information and feeds it back to the main controller. When the main controller detects an abnormality in the level information and / or pressure information, it sends a lubricating oil pump disconnection signal to the intermediate controller to control the lubricating oil pump to stop running.

[0030] For example, a level detector can be a level gauge or level sensor, and it can be installed inside the storage tank. A pressure detector can be a pressure gauge or pressure sensor, and it can be installed at the outlet of the lubricating oil pump.

[0031] As an example, after receiving the liquid level and pressure information, the main controller determines whether the liquid level and pressure information are abnormal. This determination may include: checking if the liquid level is below a liquid level threshold; if so, an abnormality is identified. Similarly, it may check if the pressure is above a pressure threshold; if so, an abnormality is identified. When the liquid level is too low (below the liquid level threshold), it indicates that the oil level in the reservoir is too low and needs to be replenished promptly. When the oil pump hydraulic pressure is too high (above the pressure threshold), it indicates an abnormality in the lubricating oil pump or other components in the lubrication subsystem. When abnormalities occur in the liquid level and / or oil pump hydraulic pressure, the intermediate controller will cut off the DO output, de-energize the KM1 coil, and stop the lubricating oil pump for troubleshooting to prevent the fault from escalating.

[0032] Furthermore, by adding a level detector and a pressure detector, the working status of the lubrication subsystem can be monitored in real time. This design increases the safety and reliability of the system. When the lubricating oil level is too low or the pressure is abnormal, the system can automatically stop running to prevent equipment damage.

[0033] Furthermore, to improve the reliability of detection, the lubrication subsystem may also include a flow detector, such as a flow sensor, which is set at the outlet of the lubricating oil pump, the first pipeline, or the inlet of the metering machine, etc., to detect whether there is an abnormality in the oil flow. If there is an abnormality, the lubricating oil pump is stopped and the abnormality is repaired.

[0034] In a specific embodiment, the power supply unit may include a grounding terminal, a neutral wire input terminal, and a live wire input terminal. The grounding port of the lubricating oil pump is connected to the grounding terminal, the neutral wire port of the lubricating oil pump is connected to the neutral wire input terminal, the live wire port of the lubricating oil pump is connected to the live wire input terminal, the control terminal of the lubricating oil pump is connected to one end of the main contact (normally open contact), and the other end of the main contact is connected to the neutral wire input terminal of the power supply unit to ensure the power supply safety and control reliability of the lubricating oil pump.

[0035] pass Figure 2 The electrical control schematic diagram shown illustrates the connection relationships between the level switch, pressure switch, and intermediate controller, as well as the signal transmission path. For example... Figure 2 As shown, one end of the control coil is electrically connected to the digital output terminal of the intermediate controller, and the other end of the control coil is electrically connected to the common terminal of the intermediate controller; one end of the normally open contact of KM1 is connected to the power supply terminal of the lubricating oil pump, and the other end is connected to the power supply unit (the neutral terminal of the maintenance plug box). Figure 2 The diagram shows the overall system structure, including the lubricating oil pump, the KM1 relay housing, the signal transmission connection between the robot control cabinet and the PLC.

[0036] Specifically, such as Figure 2 As shown, the automatic dispensing cycle control process of the adhesive applicator can include: RB / MOADEA outputs a control signal to the KM1 coil via the DO (digital output) terminal. The KM1 coil is energized, its main contacts close, the main power supply circuit is activated, the lubricating oil pump is powered on, and the 0VZ (neutral) wire of the KM1 coil is reconnected to RB / MOADEA, forming a complete control loop. Sensors such as the level switch and pressure switch on the upper left terminal block input signals to RB / MOADEA. When the level and / or pressure are abnormal, RB / MOADEA cuts off the DO output, the KM1 coil is de-energized, the main contacts open, and the equipment shuts down urgently to protect the equipment.

[0037] As an example, the adhesive application status signal may include the number of times the adhesive is applied and the application time of the adhesive application subsystem, and the lubricating oil pump operation status signal may include the stop time of the lubricating oil pump. Based on the adhesive application status signal and / or the operation status signal, determining whether the adhesive application subsystem meets the lubrication conditions may include: if the number of times the adhesive is applied by the adhesive application subsystem is greater than or equal to a preset number of times, the application time is greater than a first preset time, or the stop time of the lubricating oil pump is greater than a second preset time, then it is determined that the adhesive application subsystem meets the lubrication conditions.

[0038] In practical use, the main controller can be programmed to set the startup sequence of the lubrication subsystem. For example, the lubricating oil pump can be set to work once every preset time interval (e.g., 1~6 hours, such as 2h, 3h, etc.), with a fixed duration for each operation (e.g., 1min~5min, such as 1min30s, 2min), allowing the entire lubrication circuit to complete a cycle. Alternatively, the lubricating oil pump can be set to work once a day at a fixed time, with the duration of operation at different times set as needed. For example, it can be turned on once at 9 am for a first preset time interval, and turned on once at 5 pm for a second preset time interval, with the first preset time interval being longer than the second preset time interval.

[0039] The lubrication sequence can also be dynamically adjusted based on the number of adhesive applications, application time, or adhesive properties. For example, the lubrication subsystem can be activated after 10-100 adhesive application cycles (e.g., 20 or 30 cycles), or a fixed duration of lubrication can be performed every 2-6 hours or more of adhesive application time. This flexible control method can adapt to different scenario requirements, match the properties of different adhesives, and meet the needs of different production processes.

[0040] As an example, when lubrication conditions are met, the main controller issues a lubrication start command, which transmits the signal to the intermediate controller. The intermediate controller outputs a DO signal to drive KM1 to engage. After KM1 engages, the lubricating oil pump is powered on and starts working. During the operation of the oil pump, the intermediate controller collects switch signals such as liquid level and pressure and feeds them back to the main controller. The main controller judges whether there are any abnormalities in the liquid level and pressure information. If there is an abnormality in either information, it sends an oil pump stop signal back to the intermediate controller. The intermediate controller then controls KM1 to disconnect, and the oil pump stops running.

[0041] This application separates the lubrication subsystem from the adhesive application subsystem. The automatic lubrication system does not participate in the control of the adhesive application system and is controlled by an external control unit (MOADE A robot, PLC programmable controller). The adhesive application subsystem only provides adhesive application information feedback to the external control unit and activates the lubrication subsystem based on the adhesive application information feedback results and actual needs. In the electrical control circuit design, for ease of later management and fault tracing, the lubricating oil pump can be powered by the 220V power supply from the glue applicator. The oil pump uses a 7-core wire connection, which includes the 220V power supply for the oil pump, neutral N, level detection, hydraulic detection, PE, and the common 24V terminal of the level and pressure detection switch. Since the glue applicator signal feedback communicates with the robot, the lubricating oil pump start control signal is connected to the robot control cabinet. The robot sends a DO signal to control the relay KM1 to close, and the normally open contact of the relay closes, controlling the oil pump to start (low voltage controls high voltage). The oil pump hydraulic and level detection signals are fed back to the robot, and the signal interaction is performed through communication between the robot and the PLC. The PLC controls the robot's DO signal, and then the robot's DI signal is converted from IO COPY to D0 signal output as the PLC input / output signal.

[0042] This application has at least the following beneficial effects: 1. Flexible control effect: The main controller's programmable logic adapts to different adhesive properties and supports custom lubrication cycles. It can trigger lubrication at specific times or in specific quantities based on conditions such as the number of times the adhesive is applied, the duration of the application, or the duration of the lubricating oil pump stoppage, making the lubrication subsystem more intelligent and precise.

[0043] 2. Extend equipment life: Through the design of an independent control system, the frequency of start-up and shutdown of the lubricating oil pump is reduced by 70% compared with existing technologies, significantly improving the service life of the oil pump; at the same time, the reasonable lubrication cycle protects the sealing components of the adhesive coating equipment, extending the service life of the overall equipment.

[0044] 3. Optimized maintenance costs: The risk of oil circuit blockage is reduced by circulating lubrication and filtration design, resulting in a 30% reduction in maintenance costs; the filter effectively intercepts dry glue and foreign matter, and the purified softener can be recycled, reducing softener consumption and lowering operating costs.

[0045] 4. Strong compatibility: The independent lubrication subsystem is designed to be compatible with a variety of adhesive application equipment without requiring modification of the original equipment structure, thus exhibiting excellent versatility. Through the cooperation of the intermediate controller and the main controller, the lubrication subsystem and the adhesive application subsystem can be independently controlled and work together, improving the reliability and stability of the system.

[0046] In summary, the automatic softener dispensing and circulation system for a glue applicator provided by the embodiments of the present invention can effectively solve the problem of frequent oil pump starts, improve the phenomenon that the oil pump cannot start during equipment shutdown, reduce the risk of oil circuit blockage, reduce equipment maintenance costs, and increase the life of sealing kits.

[0047] Secondly, based on the same inventive concept, this embodiment provides an automatic dispensing and circulation method for softener in a glue applicator, which is applied to the intermediate controller of the system described in any of the aforementioned first aspects, such as... Figure 5 As shown, the method includes the following steps S101 to S102: Step S101: Obtain the glue application status signal of the glue application controller and the operating status signal of the lubricating oil pump, and send them to the main controller, so that the main controller can determine whether the glue application subsystem meets the lubrication conditions based on the glue application status signal and / or the operating status signal. Step S102: If a lubrication start signal is received from the main controller, a control signal is output to the control coil of the relay to control the main contacts of the relay to be connected.

[0048] As an optional embodiment, the glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve; the lubrication subsystem further includes a reservoir; the lubrication subsystem further includes a level detector and a pressure detector; the level detector is used to detect the level information of the oil in the reservoir; the pressure detector is used to detect the pressure information of the lubricating oil pump; both the level detector and the pressure detector are electrically connected to the intermediate controller; the method may further include: The system receives the liquid level information and the pressure information and feeds them back to the main controller. This enables the main controller to send a lubricating oil pump disconnect signal to the intermediate controller when it detects an abnormality in the liquid level information and / or the pressure information. If the system receives the lubricating oil pump disconnect signal from the main controller, it outputs a control signal to the control coil to control the main contacts to open, thereby stopping the operation of the lubricating oil pump.

[0049] Through the coordinated operation of the main controller and intermediate controllers, the automatic dosing and circulation of softener in the dispensing machine is achieved, and the safe operation of the system is ensured by liquid level and pressure monitoring. When an abnormality is detected, the system can automatically stop operation to prevent equipment damage.

[0050] The automatic dispensing and circulation method for softener in a glue applicator provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned system embodiment. For the sake of brevity, any parts not mentioned in the method embodiment can be referred to the corresponding content in the aforementioned system embodiment.

[0051] Thirdly, based on the same inventive concept, this embodiment provides an automatic dispensing and circulation method for softener in a glue applicator, which is applied to the main controller of the system described in any of the first aspects above, such as... Figure 6 As shown, it includes: Step S201: Receive the glue application status signal from the glue application controller and the operating status signal from the lubricating oil pump sent by the intermediate controller. Step S202: Based on the glue application status signal and / or the operating status signal, determine whether the glue application subsystem meets the lubrication conditions. If so, send a lubrication start signal to the intermediate controller, so that the intermediate controller can also output a control signal to the control coil based on the lubrication start signal to control the main contacts to be connected.

[0052] As an optional embodiment, the adhesive application status signal includes the number of adhesive applications and the application duration of the adhesive application subsystem, and the operating status signal includes the stop duration of the lubricating oil pump. Determining whether the adhesive application subsystem meets the lubrication conditions based on the adhesive application status signal and / or the operating status signal may include: If the number of times the adhesive is applied by the adhesive application subsystem is greater than or equal to the preset number of times, the adhesive application time is greater than the first preset time, or the stopping time of the lubricating oil pump is greater than the second preset time, then the adhesive application subsystem is determined to meet the lubrication conditions.

[0053] As an optional embodiment, the glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve; the lubrication subsystem further includes a reservoir; the lubrication subsystem further includes a level detector and a pressure detector; the level detector is used to detect the level information of the oil in the reservoir; the pressure detector is used to detect the pressure information of the lubricating oil pump; both the level detector and the pressure detector are electrically connected to the intermediate controller; the method may further include: The system receives the liquid level information and pressure information sent by the intermediate controller; if an abnormality is detected in the liquid level information and / or the pressure information, it sends a lubricating oil pump disconnection signal to the intermediate controller to control the lubricating oil pump to stop running.

[0054] This method increases the safety and reliability of the system. When the lubricating oil level is too low or the pressure is abnormal, the system can automatically stop operating to prevent equipment damage.

[0055] The automatic dispensing and circulation method for softener in a glue applicator provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned system embodiment. For the sake of brevity, any parts not mentioned in the method embodiment can be referred to the corresponding content in the aforementioned system embodiment.

[0056] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0057] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A module that specifies the function in one or more boxes.

[0058] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction modules implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0059] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0060] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0061] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An automatic dispensing and circulation system for softener in a glue applicator, characterized in that, include: The system comprises a main controller, an intermediate controller, a power supply unit, a glue application subsystem, and a lubrication subsystem. The main controller is electrically connected to the intermediate controller. The glue application subsystem includes a glue application controller for controlling the glue application process. The lubrication subsystem includes a lubricating oil pump and a relay. The power supply unit provides operating power to the lubricating oil pump. The lubricating oil pump, the relay, and the glue application controller are all electrically connected to the intermediate controller. The relay includes a control coil and a main contact. One end of the control coil is connected to the output terminal of the intermediate controller, and the other end of the control coil is electrically connected to the common terminal of the intermediate controller. The main contact is connected in the main power supply circuit between the power supply unit and the lubricating oil pump, and is used to control the on / off state of the main power supply circuit. The intermediate controller is used to receive the glue application status signal and the operating status signal of the lubricating oil pump sent by the glue application controller, and send them to the main controller. The main controller is used to determine whether the glue application subsystem meets the lubrication conditions based on the glue application status signal and / or the operating status signal. If so, it sends a lubrication start signal to the intermediate controller. The intermediate controller is also used to output a control signal to the control coil based on the lubrication start signal to control the main contacts to be connected.

2. The automatic dispensing and circulation system for softener in a glue applicator as described in claim 1, characterized in that, The glue application subsystem also includes a metering machine, a filling valve, and a glue gun valve; the lubrication subsystem also includes a liquid storage tank. The lubricating oil pump is connected to the metering machine, the filling valve and the glue gun valve in sequence through the first pipeline. The output end of the glue gun valve is connected to the liquid storage tank through the second pipeline. The lubricating oil pump is used to draw oil from the liquid storage tank and circulate the lubricating oil among the metering machine, the filling valve, the glue gun valve and the lubricating oil pump.

3. The automatic dispensing and circulation system for softener in a glue applicator as described in claim 2, characterized in that, The lubrication subsystem also includes a filter, and the output end of the glue gun valve is connected to the filter and the liquid storage tank in sequence via a second pipeline.

4. The automatic dispensing and circulation system for softener in a glue applicator as described in claim 2, characterized in that, The lubrication subsystem also includes a level detector and a pressure detector. The level detector is used to detect the level information of the oil in the reservoir, and the pressure detector is used to detect the pressure information of the lubricating oil pump. Both the level detector and the pressure detector are electrically connected to the intermediate controller. The intermediate controller is also used to receive the liquid level information and the pressure information and feed them back to the main controller. The main controller is also used to send a lubricating oil pump disconnection signal to the intermediate controller when it detects that there is an abnormality in the liquid level information and / or the pressure information, so as to control the lubricating oil pump to stop running.

5. The automatic dispensing and circulation system for softener in a glue applicator as described in claim 1, characterized in that, The power supply unit includes a grounding terminal, a neutral wire input terminal, and a live wire input terminal; The grounding port of the lubricating oil pump is connected to the grounding terminal, the neutral wire port of the lubricating oil pump is connected to the neutral wire input terminal, the live wire port of the lubricating oil pump is connected to the live wire input terminal, the control terminal of the lubricating oil pump is connected to one end of the main contact, and the other end of the main contact is connected to the neutral wire input terminal of the power supply unit.

6. An automatic dispensing and circulation method for softener in a glue applicator, applied in the intermediate controller of the system according to any one of claims 1 to 5, characterized in that, include: The glue application status signal of the glue application controller and the operating status signal of the lubricating oil pump are acquired and sent to the main controller, so that the main controller can determine whether the glue application subsystem meets the lubrication conditions based on the glue application status signal and / or the operating status signal. If a lubrication start signal is received from the main controller, a control signal is output to the control coil of the relay to control the main contacts of the relay to close.

7. The automatic dispensing and circulation method for softener in a glue applicator as described in claim 6, characterized in that, The glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve. The lubrication subsystem further includes a reservoir, a level detector, and a pressure detector. The level detector is used to detect the level of oil in the reservoir, and the pressure detector is used to detect the pressure of the lubricating oil pump. Both the level detector and the pressure detector are electrically connected to the intermediate controller. The method further includes: The system receives the liquid level information and the pressure information and feeds them back to the main controller, so that the main controller can send a lubricating oil pump disconnection signal to the intermediate controller when it detects that the liquid level information and / or the pressure information is abnormal. If a lubricating oil pump disconnection signal is received from the main controller, a control signal is output to the control coil to control the main contacts to disconnect.

8. An automatic dispensing and circulation method for softener in a glue applicator, applied in the main controller of the system according to any one of claims 1 to 5, characterized in that, include: Receive the glue application status signal from the glue application controller and the operating status signal from the lubricating oil pump sent by the intermediate controller; Based on the glue application status signal and / or the operating status signal, determine whether the glue application subsystem meets the lubrication conditions. If so, send a lubrication start signal to the intermediate controller, so that the intermediate controller can also output a control signal to the control coil based on the lubrication start signal to control the main contacts to be connected.

9. The automatic dispensing and circulation method for softener in a glue applicator as described in claim 8, characterized in that, The adhesive application status signal includes the number of adhesive applications and the application duration of the adhesive application subsystem; the operating status signal includes the stop duration of the lubricating oil pump; and determining whether the adhesive application subsystem meets the lubrication conditions based on the adhesive application status signal and / or the operating status signal includes: If the number of times the adhesive is applied by the adhesive application subsystem is greater than or equal to the preset number of times, the adhesive application time is greater than the first preset time, or the stopping time of the lubricating oil pump is greater than the second preset time, then the adhesive application subsystem is determined to meet the lubrication conditions.

10. The automatic dispensing and circulation method for softener in a glue applicator as described in claim 8, characterized in that, The glue application subsystem further includes a metering machine, a filling valve, and a glue gun valve. The lubrication subsystem further includes a reservoir, a level detector, and a pressure detector. The level detector is used to detect the level of oil in the reservoir, and the pressure detector is used to detect the pressure of the lubricating oil pump. Both the level detector and the pressure detector are electrically connected to the intermediate controller. The method further includes: Receive the liquid level information and the pressure information sent by the intermediate controller; If an abnormality is detected in the liquid level information and / or the pressure information, a lubricating oil pump disconnection signal is sent to the intermediate controller to control the lubricating oil pump to stop running.

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