Oil pollution monitoring system and forming equipment

Abstract

The embodiment of the utility model provides an oil pollution monitoring system and forming equipment, the oil pollution monitoring system is applied to the forming equipment, the forming equipment comprises an oil tank, and the oil pollution monitoring system comprises an oil extraction module, an oil pollution degree detection module, an oil pollution degree processing module and an alarm module. Oil in an oil tank in the forming equipment is extracted through the oil extraction module, pollution degree detection information of the oil is obtained through the oil pollution degree detection module, the pollution degree of the oil is determined through the oil pollution degree processing module, and when the pollution degree of the oil is large, alarm information is sent out to prompt that the oil in the oil tank is polluted. Oil liquid needs to be replaced in time, performance reduction of forming equipment is avoided, and the quality and precision of formed products are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the oil pollution monitoring technical field, in particular to an oil pollution monitoring system and a forming equipment. BACKGROUND

[0002] Hydraulic oil is the power source of the hydraulic circuit in the forming equipment, and the forming equipment includes but is not limited to an injection molding machine and a die casting machine, and the quality condition of the hydraulic oil has an important influence on the stability, reliability and safety of the whole hydraulic circuit component.

[0003] In the hydraulic circuit in the forming equipment, many faults are caused by the pollution of the hydraulic oil. The pollution reasons of the hydraulic oil are various, for example, the metal debris generated by the moving parts in contact with the hydraulic oil, the oxidation reaction of the hydraulic oil at high temperature to produce some oxidation by-products to form oil dirt and the like.

[0004] The pollution of the hydraulic oil will cause the components in the hydraulic circuit to be worn and aged prematurely, and will affect the performance and efficiency of the forming equipment, cause the quality and precision of the forming product to be low, and even cause the forming equipment to fail, and increase the maintenance cost. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problems in the related art, the present application provides an oil pollution monitoring system and a forming equipment, which can monitor the pollution degree of the oil liquid in the oil tank, avoid the performance of the forming equipment from being reduced, and improve the quality and precision of the forming product.

[0006] According to a first aspect of the embodiment of the present application, an oil pollution monitoring system is provided, which is applied to a forming equipment, and the forming equipment includes an oil tank and a second oil pump for extracting the oil liquid; the oil pollution monitoring system includes:

[0007] an oil liquid extraction module for extracting the oil liquid from the oil tank; the oil liquid extraction module includes a first oil pump for extracting the oil liquid, a control valve for controlling the flow direction of the oil liquid, and a first oil pipe and a second oil pipe for conveying the oil liquid;

[0008] one end of the first oil pipe is communicated with the outlet of the oil tank, the other end of the first oil pipe is communicated with one end of the first oil pump, the other end of the first oil pump is communicated with one end of the second oil pipe, the other end of the second oil pipe is communicated with the inlet of the oil tank, the second oil pump and the control valve are arranged on the first oil pipe, one end of the second oil pump is communicated with the outlet of the oil tank, the other end of the second oil pump is communicated with the first valve port of the control valve, and the second valve port of the control valve is communicated with one end of the first oil pump;

[0009] an oil liquid pollution degree detection module for detecting the pollution degree of the oil liquid extracted by the oil liquid extraction module and sending pollution degree detection information;

[0010] an oil pollution degree processing module configured to receive the pollution degree detection information, and send an alarm control signal when the pollution degree detection information is greater than or equal to a preset pollution degree threshold value;

[0011] an alarm module configured to receive the alarm control signal and send an alarm information;

[0012] The oil pollution degree detection module and the alarm module are connected to the oil pollution degree processing module.

[0013] According to a second aspect of the embodiments of the present application, a molding equipment is provided, which comprises the oil pollution monitoring system according to any one of the above.

[0014] The embodiments of the present application extract the oil in the oil tank of the molding equipment through the oil extraction module, obtain the pollution degree detection information of the oil through the oil pollution degree detection module, determine the pollution degree of the oil through the oil pollution degree processing module, and send an alarm information when the pollution degree of the oil is large, so as to prompt that the oil in the oil tank is polluted and needs to be replaced in time, thereby avoiding the performance degradation of the molding equipment and improving the quality and precision of the molded products.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application.

[0016] In order to better understand and implement, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of an oil pollution monitoring system according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a structural schematic diagram of an oil extraction module according to an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a structural schematic diagram of an oil pollution monitoring system according to another embodiment of the present application;

[0020] Figure 4 FIG. 4 is a structural schematic diagram of an oil pollution degree processing module according to an embodiment of the present application;

[0021] Figure 5 FIG. 5 is a structural schematic diagram of an oil pollution degree processing module according to another embodiment of the present application;

[0022] Figure 6 FIG. 6 is a structural schematic diagram of an alarm module according to an embodiment of the present application;

[0023] Figure 7 FIG. 7 is a structural schematic diagram of an oil pollution monitoring system according to another embodiment of the present application;

[0024] Figure 8 Fig. 1 is a structural schematic diagram of a forming device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the embodiments of the present application with reference to the accompanying drawings.

[0026] It should be noted that the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the following description of the present application, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0028] In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. The word "if" used herein can be interpreted as "when" or "when" or "in response to determining". In addition, in the description of the present application, "multiple" means two or more, unless otherwise specified. "And / or", which describes the relationship between the associated objects, means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0029] Referring to Figure 1 , which is a structural schematic diagram of an oil pollution monitoring system according to an embodiment of the present application. The oil pollution monitoring system provided by the embodiment of the present application is applied to a forming device 1, which comprises an oil tank 11. The oil pollution monitoring system 2 comprises:

[0030] an oil liquid extraction module 21 for extracting oil liquid from the oil tank 11;

[0031] an oil liquid pollution degree detection module 22 for detecting the pollution degree of the oil liquid extracted by the oil liquid extraction module 21 and sending pollution degree detection information;

[0032] The oil pollution degree processing module 23 is configured to receive the pollution degree detection information, and send an alarm control signal when the pollution degree detection information is greater than or equal to a preset pollution degree threshold value.

[0033] The alarm module 24 is configured to receive the alarm control signal and send an alarm information.

[0034] The oil pollution degree detection module 22 and the alarm module 24 are connected to the oil pollution degree processing module 23.

[0035] In the embodiment, the oil tank is configured to store oil (hydraulic oil) required by a hydraulic circuit of the molding equipment, and the oil provides power for the hydraulic circuit. In the embodiment, the oil extraction module 21 extracts oil from the oil tank 11 during the operation of the molding equipment, the oil pollution degree detection module 22 detects the pollution degree of the extracted oil to obtain pollution degree detection information, and sends the pollution degree detection information to the oil pollution degree processing module 23. The oil pollution degree processing module 23 compares the pollution degree detection information with a preset pollution degree threshold value, and sends an alarm control signal to the alarm module 24 when the pollution degree detection information is greater than or equal to the preset pollution degree threshold value. The alarm module 24 sends an alarm information according to the alarm control signal, and prompts that the oil in the oil tank 11 is contaminated.

[0036] In the embodiment, the oil extraction module extracts oil from the oil tank of the molding equipment, the oil pollution degree detection module obtains the pollution degree detection information of the oil, and the oil pollution degree processing module determines the pollution degree of the oil. When the pollution degree of the oil is large, an alarm information is sent to prompt that the oil in the oil tank is contaminated, and the oil needs to be replaced in time, thereby avoiding the performance degradation of the molding equipment and improving the quality and precision of the molding products.

[0037] In one embodiment, referring to Figure 2 The oil extraction module 21 comprises:

[0038] A first oil pump 211 configured to extract oil;

[0039] A first oil pipe 212 and a second oil pipe 213 configured to transport oil;

[0040] One end of the first oil pipe 212 is connected to an outlet of the oil tank 11, the other end of the first oil pipe 212 is connected to one end of the first oil pump 211, the other end of the first oil pump 211 is connected to one end of the second oil pipe 213, and the other end of the second oil pipe 213 is connected to an inlet of the oil tank 11.

[0041] The oil pollution degree detection module 22 is arranged on the second oil pipe 213.

[0042] In the embodiment of the present application, the first oil pump 211 draws the oil in the oil tank 11 to the oil pollution degree detection module 22 through the first oil pipe 212, the oil pollution degree detection module 22 detects the pollution degree of the oil, and obtains the pollution degree detection information. After the oil is detected, the oil flows back to the oil tank 11 through the second oil pipe 213.

[0043] The present application can automatically and quickly realize the drawing of the oil in the oil tank, the pollution degree detection of the oil, and the backflow of the oil through the cooperation of the first oil pump 211, the first oil pipe 212, the oil pollution degree detection module 22, and the second oil pipe 213.

[0044] In one embodiment, referring to Figure 3 , the molding equipment 1 further comprises:

[0045] a second oil pump 12 for drawing the oil;

[0046] The oil drawing module 21 further comprises:

[0047] a control valve 214 for controlling the flow direction of the oil;

[0048] The second oil pump 12 and the control valve 214 are arranged on the first oil pipe 212, one end of the second oil pump 12 is communicated with the outlet of the oil tank 11, the other end of the second oil pump 12 is communicated with the first valve port of the control valve 214, and the second valve port of the control valve 214 is communicated with one end of the first oil pump 211.

[0049] Among them, the second oil pump 12 is the main oil pump of the molding equipment.

[0050] Among them, the control valve 214 includes but is not limited to a one-way valve and a reversing valve, which can control the flow direction of the oil.

[0051] In the embodiment of the present application, the oil tank 11, the second oil pump 12, and other moving parts of the molding equipment 1 form a hydraulic circuit. For example, the other moving parts are mold locking oil cylinders. The second oil pump 12 draws the oil from the oil tank 11 through the first oil pipe 212, and delivers the oil to the other moving parts to provide power for the other moving parts. At the same time, the control valve 214 is arranged on the first oil pipe 212, and a part of the oil drawn from the second oil pump 12 is branched through the valve port of the control valve 214, and the part of the oil is delivered to the oil pollution degree detection module 22 through the first oil pump 211, so that the oil pollution degree detection module 22 detects the pollution degree of the oil to obtain the pollution degree detection information.

[0052] The present application can draw the oil in the oil tank 11 to the oil pollution degree detection module 22, and realize the pollution degree detection of the oil through the cooperation of the second oil pump 12, the first oil pipe 212, the control valve 214, the first oil pump 211, and the oil pollution degree detection module 22.

[0053] The following will take the injection molding machine as an example to illustrate the oil pollution monitoring of the oil in the hydraulic circuit of the injection molding machine. Specifically, the injection molding machine includes an oil tank, a main oil pump, a reversing valve, and a mold clamping device, the mold clamping device includes a fixed mold plate, a movable mold plate, a tail plate, a tie rod, a mold clamping cylinder, and a connecting rod, the mold clamping cylinder includes a cylinder body and a piston rod in the cylinder body. One end of the tie rod is connected to the fixed mold plate, the other end of the tie rod is connected to the tail plate, the movable mold plate is slidingly arranged on the tie rod, the mold clamping cylinder and the connecting rod are arranged between the movable mold plate and the tail plate, one end of the connecting rod is connected to the piston rod of the mold clamping cylinder, and the other end of the connecting rod is connected to the movable mold plate. The oil tank, the main oil pump, the reversing valve, and the mold clamping cylinder are connected in sequence through connecting pipelines, the main oil pump draws hydraulic oil from the oil tank, the hydraulic oil is sequentially delivered to the rod cavity and the rodless cavity of the mold clamping cylinder through one valve port of the reversing valve, and then returns to the oil tank through another valve port, forming a hydraulic circuit. Among them, the piston rod divides the space in the cylinder body into a rod cavity and a rodless cavity. The piston rod of the mold clamping cylinder drives the connecting rod to move the movable mold plate along the axial direction of the tie rod under the action of the oil, so as to generate a mold clamping force between the fixed mold plate and the movable mold plate, and clamp the injection material injected into the fixed mold plate and the movable mold plate.

[0054] Among them, the fixed mold plate is usually fixed on the injection molding machine frame, used to provide a stable support surface for mounting and fixing one half of the mold.

[0055] Among them, the movable mold plate is arranged opposite to the fixed mold plate. The movable mold plate moves on the injection molding machine frame through some form of guiding mechanism (such as four-column guide, slide rail, etc.). The movable mold plate is used to mount and fix the other half of the mold, and tightly abuts against the fixed mold plate during the mold clamping process to form a closed mold cavity.

[0056] Among them, the tail plate is usually fixed on the injection molding machine frame, used to carry the mold clamping cylinder, which is connected to the fixed mold plate through the tie rod, ensuring the rigidity and stability of the entire mold clamping device.

[0057] Among them, the tie rod runs through the entire mold clamping device, extending from the tail plate to the fixed mold plate. Their role is to maintain the parallelism between the movable mold plate and the fixed mold plate, and to bear the tension. The tie rod is fixed at both ends of the tail plate and the fixed mold plate, ensuring that there is no deviation during the mold clamping process.

[0058] Among them, the mold clamping cylinder is used to push the movable mold plate closer to or farther away from the fixed mold plate, thereby achieving the locking and loosening of the mold. Specifically, the mold clamping cylinder is generally installed near the tail plate, and its piston rod is connected to the movable mold plate. When the oil in the mold clamping cylinder is pressurized, the piston rod extends and pushes the movable mold plate to move forward; conversely, it pulls the movable mold plate to retreat.

[0059] The connecting rod transmits the motion of the clamping cylinder to the movable template and helps maintain parallel movement between the templates. One end of the connecting rod is connected to the piston rod of the clamping cylinder, and the other end is connected to a hinge point on the movable template. This arrangement allows the small stroke of the clamping cylinder to be converted into a large stroke of the movable template through leverage.

[0060] Among them, the reversing valve is used to change the flow direction of the oil.

[0061] This embodiment of the application can extract oil from the oil tank of the injection molding machine through an oil extraction module, obtain oil contamination detection information through an oil contamination detection module, determine the degree of oil contamination through an oil contamination processing module, and issue an alarm message when the oil contamination level is high to indicate that the oil in the tank is contaminated and needs to be replaced in time, thereby avoiding the performance degradation of the injection molding machine and improving the quality and precision of the injection molded products.

[0062] In one embodiment, the oil contamination detection module 22 includes:

[0063] An oil contamination detection sensor used to detect oil parameters; oil parameters include one or more of the following: oil particles of different sizes and oil moisture content.

[0064] The oil stain detection sensor is installed on the oil extraction module 21.

[0065] In this embodiment, an oil contamination detection sensor can be installed on the second oil pipe 213. The oil contamination detection sensor can be a particulate sensor, used to detect the particle concentration of different sizes of particles in the oil. Alternatively, it can be a moisture content sensor, used to detect the moisture content of the oil. Furthermore, the oil contamination detection sensor can be a multi-parameter oil monitoring sensor, capable of simultaneously detecting the particle concentration of different sizes of particles in the oil and the moisture content of the oil.

[0066] This application embodiment uses an oil contamination detection sensor to detect the contamination level of oil, which can automatically and quickly obtain the particle concentration of oil particles of different sizes and the water content of the oil.

[0067] In one embodiment, see Figure 4 The oil contamination treatment module 23 includes:

[0068] Comparator 231 is used to receive pollution level detection information and issue an alarm control signal when the pollution level detection information is greater than or equal to a preset pollution level threshold.

[0069] The input terminal of comparator 231 is connected to the oil contamination detection module 22; the output terminal of comparator 231 is connected to the alarm module 24.

[0070] In this embodiment, when the pollution level detection information is greater than or equal to a preset pollution level threshold, the comparator 231 issues an alarm control signal. When the pollution level detection information is less than the preset pollution level threshold, the comparator 231 does not issue an alarm control signal. Specifically, when the particulate matter concentration is greater than or equal to a preset particulate matter concentration threshold, the comparator 231 issues an alarm control signal. And / or, when the moisture content is greater than or equal to a preset moisture content threshold, the comparator 231 issues an alarm control signal.

[0071] In this embodiment of the application, the comparator 231 compares the pollution level detection information with the preset pollution level threshold to determine whether to issue an alarm control signal.

[0072] In one embodiment, see Figure 5 The preset pollution thresholds include a first pollution threshold, a second pollution threshold, and a third pollution threshold; the first pollution threshold is greater than the second pollution threshold, and the second pollution threshold is greater than the third pollution threshold.

[0073] Oil contamination processing module 23: First comparator 232 used to compare contamination detection information with a first contamination threshold, and to issue a first alarm control signal when the contamination detection information is greater than or equal to the first contamination threshold;

[0074] The second comparator 233 is used to compare the pollution level detection information with the second pollution level threshold when the pollution level detection information is less than the first pollution level threshold, and to issue a second alarm control signal when the pollution level detection information is greater than or equal to the second pollution level threshold.

[0075] The third comparator 234 is used to compare the pollution level detection information with the third pollution level threshold when the pollution level detection information is less than the second pollution level threshold, and to issue a third alarm control signal when the pollution level detection information is greater than or equal to the third pollution level threshold.

[0076] The input of the first comparator 232 is connected to the oil contamination detection module 22, and the output of the first comparator 232 is connected to the alarm module 24; the input of the second comparator 233 is connected to the oil contamination detection module 22, and the output of the second comparator 233 is connected to the alarm module 24; the input of the third comparator 234 is connected to the oil contamination detection module 22, and the output of the third comparator 234 is connected to the alarm module 24.

[0077] In this embodiment, when the contamination detection information is greater than or equal to a first contamination threshold, the first comparator 232 issues a first alarm control signal. When the contamination detection information is less than the first contamination threshold, the first comparator 232 does not issue the first alarm control signal. When the contamination detection information is less than the first contamination threshold but greater than or equal to a second contamination threshold, the second comparator 233 issues a second alarm control signal. When the contamination detection information is less than the second contamination threshold, the second comparator 233 does not issue the second alarm control signal. When the contamination detection information is less than the second contamination threshold but greater than or equal to a third contamination threshold, the third comparator 234 issues a third alarm control signal. When the contamination detection information is less than the third contamination threshold, the third comparator 234 does not issue the third alarm control signal.

[0078] Specifically, when the particulate matter concentration is greater than or equal to a first particulate matter concentration threshold, the first comparator 232 issues a first alarm control signal. When the particulate matter concentration is less than the first particulate matter concentration threshold but greater than or equal to a second particulate matter concentration threshold, the second comparator 233 issues a second alarm control signal. When the particulate matter concentration is less than the second particulate matter concentration threshold but greater than or equal to a third particulate matter concentration threshold, the third comparator 234 issues a third alarm control signal. And / or,

[0079] When the moisture content is greater than or equal to a moisture content threshold, the first comparator 232 issues a first alarm control signal. When the moisture content is less than the first moisture content threshold but greater than or equal to a second moisture content threshold, the second comparator 233 issues a second alarm control signal. When the moisture content is less than the second moisture content threshold but greater than or equal to a third moisture content threshold, the third comparator 234 issues a third alarm control signal.

[0080] In this embodiment of the application, the first comparator 232, the second comparator 233 and the third comparator 234 work together to determine different levels of oil contamination and generate different alarm control signals based on different levels of contamination.

[0081] In one embodiment, see Figure 6 The alarm module 24 includes:

[0082] A first alarm device 241 is used to receive a first alarm control signal and issue a first alarm message;

[0083] Second alarm device 242 for receiving second alarm control signals and issuing second alarm information;

[0084] Third alarm device 243, used to receive third alarm control signals and issue third alarm information;

[0085] The first alarm 241 is connected to the output of the first comparator 2311, the second alarm 242 is connected to the output of the second comparator 2312, and the third alarm 243 is connected to the output of the third comparator 2313.

[0086] In this embodiment, the first alarm 241 includes, but is not limited to, a display screen, a sound generator, and an alarm light. The first alarm control signal includes, but is not limited to, a pop-up alarm control signal, an audio alarm control signal, and / or a light alarm control signal. The first alarm information includes, but is not limited to, a pop-up alarm signal, an audio alarm signal, and / or a light alarm signal. The pop-up alarm signal may be a text prompt displayed in a pop-up window, the audio alarm signal may be a sound emitted by a buzzer, and the light alarm signal may be a colored light emitted by an alarm light.

[0087] The second alarm device 242 includes, but is not limited to, a display screen, a sound generator, and an alarm light. The second alarm control signals include, but are not limited to, pop-up alarm control signals, audio alarm control signals, and / or visual alarm control signals. The second alarm information includes, but is not limited to, pop-up alarm signals, audio alarm signals, and / or visual alarm signals. The pop-up alarm signal may be a text prompt displayed in a pop-up window; the audio alarm signal may be a buzzer emitting sound; and the visual alarm signal may be a colored light emitted by the alarm light. The second alarm control signal differs from the first alarm control signal, and the second alarm information differs from the first alarm information.

[0088] The third alarm device 243 includes, but is not limited to, a display screen, a sound generator, and an alarm light. The third alarm control signals include, but are not limited to, pop-up alarm control signals, audio alarm control signals, and / or light alarm control signals. The third alarm information includes, but is not limited to, pop-up alarm signals, audio alarm signals, and / or light alarm signals. The pop-up alarm signal may be a text prompt displayed in a pop-up window; the audio alarm signal may be a buzzer sounding; and the light alarm signal may be a colored light emitted by the alarm light. The third alarm control signal differs from the first and second alarm control signals, and the third alarm information differs from the first and second alarm information.

[0089] This application embodiment, by setting a first alarm 241, a second alarm 242, and a third alarm 243, can display different text prompts through a pop-up window, emit different sounds through a buzzer, and / or emit different colored lights through an alarm light when the degree of contamination of the oil in the mold-locking cylinder is different, so as to issue different alarm information to remind the user of the different degrees of contamination of the oil.

[0090] In one embodiment, see Figure 6 The molding equipment 1 also includes:

[0091] Control device 13 is used to receive the first alarm control signal and control the molding equipment 1 to stop working after the current operating cycle ends;

[0092] The control device 13 is connected to the first comparator 232.

[0093] The current operating cycle refers to the cycle during which the molding equipment is running when oil pollution monitoring is performed. For example, one molding cycle of an injection molding machine.

[0094] In this embodiment, the oil contamination monitoring system detects that the oil contamination level of the molding equipment during the current operating cycle is greater than or equal to a first contamination threshold, indicating that the oil contamination level is severe. The first comparator 232 then sends a first alarm control signal to the control device 13. After the current operating cycle of the molding equipment ends, the control device 13 controls the molding equipment 1 to stop working, so that the oil in the molding equipment 1 can be replaced in a timely manner to prevent performance degradation.

[0095] In an alternative embodiment, the molding equipment can be manually stopped after the first comparator issues a first alarm control signal.

[0096] In one embodiment, see Figure 7 This application also provides a molding equipment 100, including the oil contamination monitoring system 2 described above.

[0097] In this embodiment of the application, by applying the above-mentioned oil contamination monitoring system 2 in the molding equipment 100, the degree of oil contamination in the oil tank of the molding equipment 100 can be monitored in real time, so as to avoid oil contamination in the oil tank and thus reduce the product quality and precision of the molding equipment 100.

[0098] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0099] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An oil pollution monitoring system, characterized in that, Applied to molding equipment, the molding equipment including an oil tank and a second oil pump for drawing oil; The oil pollution monitoring system includes: An oil extraction module for extracting oil from the oil tank; the oil extraction module includes: a first oil pump for extracting the oil, a control valve for controlling the flow direction of the oil, and a first oil pipe and a second oil pipe for conveying the oil. One end of the first oil pipe is connected to the outlet of the oil tank, and the other end of the first oil pipe is connected to one end of the first oil pump. The other end of the first oil pump is connected to one end of the second oil pipe, and the other end of the second oil pipe is connected to the inlet of the oil tank. The second oil pump and the control valve are installed on the first oil pipe. One end of the second oil pump is connected to the outlet of the oil tank, and the other end of the second oil pump is connected to the first valve port of the control valve. The second valve port of the control valve is connected to one end of the first oil pump. An oil contamination detection module is used to detect the contamination level of the oil extracted by the oil extraction module and to issue contamination level detection information. An oil contamination processing module for receiving the contamination detection information and issuing an alarm control signal when the contamination detection information is greater than or equal to a preset contamination threshold. An alarm module used to receive the alarm control signal and issue alarm information; The oil contamination detection module and the alarm module are respectively connected to the oil contamination processing module.

2. The oil pollution monitoring system according to claim 1, characterized in that: The oil contamination detection module is installed on the second oil pipe.

3. The oil pollution monitoring system according to claim 1, characterized in that: The oil contamination detection module includes: An oil contamination detection sensor for detecting oil parameters of the oil; the oil parameters include one or more of the following: particulate matter of different sizes in the oil and the water content of the oil. The oil stain detection sensor is installed on the oil extraction module.

4. The oil pollution monitoring system according to claim 1, characterized in that: The oil contamination treatment module includes: A comparator used to receive the pollution level detection information and to issue an alarm control signal when the pollution level detection information is greater than or equal to a preset pollution level threshold; The input terminal of the comparator is connected to the oil contamination detection module; the output terminal of the comparator is connected to the alarm module.

5. The oil pollution monitoring system according to claim 1, characterized in that: The preset contamination threshold includes a first contamination threshold, a second contamination threshold, and a third contamination threshold; the first contamination threshold is greater than the second contamination threshold, and the second contamination threshold is greater than the third contamination threshold; The oil contamination treatment module includes: A first comparator is used to compare the pollution level detection information with the first pollution level threshold, and to issue a first alarm control signal when the pollution level detection information is greater than or equal to the first pollution level threshold. A second comparator is used to compare the pollution level detection information with the second pollution level threshold when the pollution level detection information is less than the first pollution level threshold, and to issue a second alarm control signal when the pollution level detection information is greater than or equal to the second pollution level threshold. A third comparator is used to compare the pollution level detection information with the third pollution level threshold when the pollution level detection information is less than the second pollution level threshold, and to issue a third alarm control signal when the pollution level detection information is greater than or equal to the third pollution level threshold. The input terminal of the first comparator is connected to the oil contamination detection module, and the output terminal of the first comparator is connected to the alarm module; the input terminal of the second comparator is connected to the oil contamination detection module, and the output terminal of the second comparator is connected to the alarm module; the input terminal of the third comparator is connected to the oil contamination detection module, and the output terminal of the third comparator is connected to the alarm module.

6. The oil pollution monitoring system according to claim 5, characterized in that: The alarm module includes: A first alarm device used to receive the first alarm control signal and issue the first alarm information; A second alarm device used to receive the second alarm control signal and issue the second alarm information; A third alarm device used to receive the third alarm control signal and issue the third alarm information; The first alarm is connected to the output of the first comparator, the second alarm is connected to the output of the second comparator, and the third alarm is connected to the output of the third comparator.

7. The oil pollution monitoring system according to claim 5, characterized in that: The molding equipment also includes: Control device for receiving the first alarm control signal and controlling the molding equipment to stop working after the current operating cycle ends; The control device is connected to the first comparator.

8. A molding device, characterized in that, Includes the oil pollution monitoring system as described in any one of claims 1 to 7.

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