Intelligent centralized control system for gear oil of two-piece can stretcher

Abstract

The invention relates to the technical field of two-piece can production equipment, and discloses a two-piece can stretcher gear oil intelligent centralized control system which comprises a central control system, a gear oil ton barrel station, an oil supplementing pipeline, an oil storage tank, a supply pipeline and a stretcher gear oil tank, an electronic weighing device is arranged at the bottom of the oil storage tank, and an oil supplementing metering pump is arranged in the oil supplementing pipeline. A supply metering pump is arranged in the supply pipeline, a first liquid level sensor is arranged in the oil storage tank, a second liquid level sensor is arranged in the stretcher gear oil tank, and the electronic weighing device, the oil supplementing metering pump, the supply metering pump, the first liquid level sensor and the second liquid level sensor are electrically connected with a central control system. According to the intelligent centralized control system for the gear oil of the two-piece can stretcher, automation and intellectualization of the gear oil filling process are achieved, the influence of human factors on equipment is reduced, abnormal consumption of the gear oil and generation of waste oil are reduced, and the hazardous waste treatment difficulty and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of two-piece can production equipment, and particularly relates to an intelligent centralized control system for the gear oil of a two-piece can stretching machine. Background Art

[0002] In the traditional two-piece can industry, the control of the gear oil of the stretching machine only has high and low liquid level alarms, and the automatic filling of the gear oil cannot be realized. It can only rely on manual monitoring and manual filling, resulting in problems such as inaccurate filling volume, high labor intensity, and low efficiency. Due to the influence of human factors, the stretching machine often stops abnormally due to low liquid level, resulting in low equipment stability, increased equipment maintenance costs, frequent start-stop of the equipment, easy occurrence of product quality problems, and each refueling during shutdown requires 10 - 20 minutes, seriously affecting production efficiency; manual statistical analysis cannot control the consumption in time, which is not conducive to statistical and analysis in management. The intelligent management such as consumption monitoring data analysis is lacking. The abnormal consumption increases the difficulty of production process control and sewage treatment, the difficulty of cost control is high, and the amount of waste oil hazardous waste is increased, resulting in increased costs for hazardous waste treatment and sewage treatment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide an intelligent centralized control system for the gear oil of a two-piece can stretching machine, which realizes the automation and intelligence of the gear oil filling process, reduces the influence of human factors on the equipment, reduces the abnormal consumption of gear oil and the generation of waste oil, and reduces the difficulty and cost of hazardous waste treatment.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: An intelligent centralized control system for the gear oil of a two-piece can stretching machine, including a central control system, a gear oil ton barrel station, a storage oil tank, and several groups of stretching machine gear oil tanks. A refueling pipeline is connected in communication between the gear oil ton barrel station and the storage oil tank, and a supply pipeline is connected in communication between the storage oil tank and the stretching machine gear oil tanks. An electronic weighing device is arranged at the bottom of the storage oil tank, a refueling metering pump is arranged in the refueling pipeline, a supply metering pump is arranged in the supply pipeline, a first liquid level sensor is arranged in the storage oil tank, and a second liquid level sensor is arranged in the stretching machine gear oil tank. The electronic weighing device, the refueling metering pump, the supply metering pump, the first liquid level sensor, and the second liquid level sensor are respectively electrically connected to the central control system.

[0005] As a further improvement of the above technical solution: A pressure sensor and a pressure relief valve are arranged on the supply pipeline, and the pressure sensor and the pressure relief valve are electrically connected to the central control system.

[0006] A fluid valve and a manual ball valve are also provided on the supply pipeline, and the fluid valve is electrically connected to the central control system.

[0007] An oil collecting tray base is provided at the bottom of the electronic weighing device.

[0008] An alarm and fault diagnosis module is also included, and the alarm and fault diagnosis module is electrically connected to the central control system.

[0009] The central control system is provided with a human-machine interaction interface.

[0010] The oil replenishment pipeline is branched into a first oil replenishment branch pipe and a second oil replenishment branch pipe. The first oil replenishment branch pipe is connected to the oil replenishment metering pump in a communicating manner. The second oil replenishment branch pipe is connected to the supply metering pump in a communicating manner. The input ends of the first oil replenishment branch pipe and the second oil replenishment branch pipe are communicated with the upstream section of the oil replenishment pipeline. The output ends of the first oil replenishment branch pipe and the second oil replenishment branch pipe are communicated with the downstream section of the oil replenishment pipeline; The supply pipeline is branched into a first supply branch pipe and a second supply branch pipe. The first supply branch pipe is connected to the supply metering pump in a communicating manner. The second supply branch pipe is connected to the oil replenishment metering pump in a communicating manner. The input ends of the first supply branch pipe and the second supply branch pipe are communicated with the upstream section of the supply pipeline. The output ends of the first supply branch pipe and the second supply branch pipe are communicated with the downstream section of the supply pipeline.

[0011] A first ball valve S1 and a second ball valve S2 are provided on the first oil replenishment branch pipe. A third ball valve S3 and a fourth ball valve S4 are provided on the second oil replenishment branch pipe. A fifth ball valve S5 and a sixth ball valve S6 are provided on the first supply branch pipe. A seventh ball valve S7 and an eighth ball valve S8 are provided on the second supply branch pipe.

[0012] Compared with the prior art, the advantages of the present invention are as follows: The intelligent centralized control system for the gear oil of the two-piece can drawing machine of the present invention includes a pipeline system formed by sequentially connecting a gear oil ton barrel station, a refueling pipeline, an oil storage tank, a supply pipeline, and a drawing machine gear oil tank, and an intelligent control system formed by electrically connecting an electronic weighing device, a refueling metering pump, a supply metering pump, a first liquid level sensor, and a second liquid level sensor to a central control system. The central control system uses an industrial control computer and a PLC programmable logic controller, which has data acquisition and analysis functions, collects and analyzes the refueling data of each drawing machine, automatically generates reports, helps optimize management, can monitor the gear oil level in the oil storage tank through data transmission connection with the first liquid level sensor, the refueling metering pump cooperates with the electronic weighing device to achieve precise control of the refueling amount of the oil storage tank, can monitor the gear oil level in each group of drawing machine gear oil tanks through data transmission connection with the second liquid level sensor, and the supply metering pump cooperates with the electronic weighing device to achieve precise control of the supply amount of the drawing machine gear oil tank, effectively reducing equipment abnormal shutdown caused by forgetting to refuel, realizing quantitative filling in the non-stop state of the drawing machine, automating and intelligentizing the gear oil filling process of the drawing machine, reducing the manual operation link, reducing the labor intensity of the staff, at the same time reducing the influence of human factors on the equipment, reducing abnormal consumption of gear oil and generation of waste oil, and reducing the difficulty and cost of hazardous waste treatment. Brief Description of the Drawings

[0013] Figure 1 It is a frame schematic diagram of the intelligent centralized control system for the gear oil of the two-piece can drawing machine.

[0014] Figure 2 It is a pipeline schematic diagram of the intelligent centralized control system for the gear oil of the two-piece can drawing machine.

[0015] Legend Explanation: 100. Central control system; 101. Human-machine interface; 1. Gear oil ton barrel station; 2. Oil storage tank; 3. Drawing machine gear oil tank; 4. Refueling pipeline; 401. First refueling branch pipe; 402. Second refueling branch pipe; 5. Supply pipeline; 501. First supply branch pipe; 502. Second supply branch pipe; 6. Electronic weighing device; 7. Refueling metering pump; 8. Supply metering pump; 9. First liquid level sensor; 10. Second liquid level sensor; 11. Pressure sensor; 12. Pressure relief valve; 13. Fluid valve; 14. Manual ball valve; 15. Oil collecting tray base; 16. Alarm and fault diagnosis module; S1. First ball valve; S2. Second ball valve; S3. Third ball valve; S4. Fourth ball valve; S5. Fifth ball valve; S6. Sixth ball valve; S7. Seventh ball valve; S8. Eighth ball valve. Detailed Embodiments

[0016] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0017] As Figure 1 and Figure 2 shown, the intelligent centralized control system for the gear oil of the two-piece can stretching machine in this embodiment includes a central control system 100, a gear oil ton barrel station 1, an oil storage tank 2, and several groups of stretching machine gear oil tanks 3. A refueling pipeline 4 is connected in communication between the gear oil ton barrel station 1 and the oil storage tank 2, and a supply pipeline 5 is connected in communication between the oil storage tank 2 and the stretching machine gear oil tanks 3. An electronic weighing device 6 is arranged at the bottom of the oil storage tank 2, a refueling metering pump 7 is arranged in the refueling pipeline 4, a supply metering pump 8 is arranged in the supply pipeline 5, a first liquid level sensor 9 is arranged in the oil storage tank 2, and a second liquid level sensor 10 is arranged in the stretching machine gear oil tanks 3. The electronic weighing device 6, the refueling metering pump 7, the supply metering pump 8, the first liquid level sensor 9, and the second liquid level sensor 10 are respectively electrically connected to the central control system 100. The intelligent centralized control system for the gear oil of the two-piece can stretching machine includes a pipeline system formed by sequentially connecting the gear oil ton barrel station 1, the refueling pipeline 4, the oil storage tank 2, the supply pipeline 5, and the stretching machine gear oil tanks 3 in communication, and an intelligent control system formed by electrically connecting the electronic weighing device 6, the refueling metering pump 7, the supply metering pump 8, the first liquid level sensor 9, and the second liquid level sensor 10 to the central control system 100. The central control system 100 uses an industrial computer and a PLC programmable logic controller, and has functions of data collection and analysis, collects and analyzes the refueling data of each stretching machine, automatically generates reports, helps optimize management, can monitor the gear oil level in the oil storage tank 2 by data transmission connection with the first liquid level sensor 9, the refueling metering pump 7 cooperates with the electronic weighing device 6 to achieve precise control of the refueling amount of the oil storage tank 2, can monitor the gear oil level in each group of stretching machine gear oil tanks 3 by data transmission connection with the second liquid level sensor 10, and the supply metering pump 8 cooperates with the electronic weighing device 6 to achieve precise control of the supply amount of the stretching machine gear oil tanks 3, effectively reducing abnormal shutdown of equipment caused by forgetting to refuel, realizing quantitative filling in the non-stop state of the stretching machine, automating and intelligentizing the process of filling the gear oil of the stretching machine, reducing the manual operation links, reducing the labor intensity of the staff, at the same time reducing the influence of human factors on the equipment, reducing abnormal consumption of gear oil and generation of waste oil, and reducing the difficulty and cost of hazardous waste treatment.

[0018] It should be noted that in this embodiment, the gear oil ton barrel station 1 is also the gear oil ton barrel storage position. In actual application, an industrial forklift places the gear oil ton barrel on the gear oil ton barrel storage position, and the oil replenishment pipeline 4 is connected to the gear oil ton barrel. The gear oil is pumped into the storage tank 2 through the oil replenishment metering pump 7; both the oil replenishment metering pump 7 and the supply metering pump 8 are piston metering pumps. The metering calculation is carried out by calculating the stroke of the piston pump to calculate the specific fuel injection volume. For example, a piston pump with the model JPD1255 / 1.8 is selected, and its hourly pump oil volume is 1255 liters. By adjusting the flow rate, the hourly pump oil volume is controlled to be 1200 liters, so the pump oil volume per minute is 20 liters, the number of strokes per minute is 100 times, and the oil volume per single stroke is 0.2 liters. A sensor is installed at the position of the metering pump piston, and the single fuel injection quantitative control is realized by counting the strokes of the metering pump; the electronic weighing device 6 is an electronic scale, which is used as an auxiliary measurement, weighing and recording the usage in real time. The electronic scale and the piston metering pump form a system metering mechanism, and the data are mutually referenced, and the volume and weight allowable errors are set to improve the metering reliability.

[0019] Preferably, a pressure sensor 11 and a pressure relief valve 12 are provided on the supply pipeline 5, and the pressure sensor 11 and the pressure relief valve 12 are electrically connected to the central control system 100. In this embodiment, as Figure 2 shown, a pressure sensor 11 and a pressure relief valve 12 are connected between the supply pipeline 5 and the oil replenishment pipeline 4. The pressure sensor 11 is used to detect the pressure value in the supply pipeline 5 and transmit the data signal to the central control system 100 for recording. When the pressure sensor 11 detects that the pressure value in the supply pipeline 5 exceeds the set value, the central control system 100 gives an alarm and simultaneously controls the pressure relief valve 12 to open for pressure relief, so that part of the gear oil in the supply pipeline 5 flows back to the oil replenishment pipeline 4 to improve safety.

[0020] Preferably, a fluid valve 13 and a manual ball valve 14 are also provided on the supply pipeline 5, and the fluid valve 13 is electrically connected to the central control system 100. In this embodiment, a fluid valve 13 and a manual ball valve 14 are installed at the inlet where the supply pipeline 5 is connected to the gear oil tank of the stretching machine 3. The fluid valve 13 is controlled to open or close by the action signal of the central control system 100, and the manual ball valve 14 is manually operated by the staff to open or close. The manual ball valve 14 can be used for the initial installation and commissioning of the system and the rough adjustment of the flow rate. The fluid valve 13 is used for daily automatic control and can provide safety redundancy to improve the system reliability.

[0021] Preferably, an oil collecting tray base 15 is provided at the bottom of the electronic weighing device 6. In this embodiment, the storage tank 2, the electronic weighing device 6, the oil replenishment metering pump 7 and the supply metering pump 8 are all installed on the oil collecting tray base 15. When leakage occurs at the connection of the storage tank 2 or the metering pump, the oil collecting tray base 15 can receive the leaked gear oil and prevent the gear oil from flowing and polluting the working environment.

[0022] Preferably, it further includes an alarm and fault diagnosis module 16, and the alarm and fault diagnosis module 16 is electrically connected to the central control system 100. In this embodiment, the alarm and fault diagnosis module 16 includes a horn alarm, a fault indicator light, and a field control panel. When any component among the electronic weighing device 6, the oil replenishment metering pump 7, the supply metering pump 8, the first liquid level sensor 9, the second liquid level sensor 10, the pressure sensor 11, the pressure relief valve 12, and the fluid valve 13 has an abnormal working condition, through the horn sound, the fault light flashing, and the screen information prompt, it is possible to timely detect faults such as abnormal operation of the pump station and pipeline and abnormal refueling during the system operation. When the equipment refueling volume exceeds the standard, a short message is sent to the relevant staff for timely intervention and handling, reducing the abnormal consumption of gear oil, shortening the fault troubleshooting time, and reducing the loss of production shutdown, and having a perfect alarm and fault diagnosis function.

[0023] Preferably, the central control system 100 is provided with a human-machine interaction interface 101. In this embodiment, the staff can monitor the states of the refueling valves of each stretching machine, browse the refueling records of each stretching machine, set the single refueling volume of each stretching machine, etc. through the human-machine interaction interface 101 for system monitoring, improving the convenience of use.

[0024] Preferably, the oil replenishment pipeline 4 is divided into a first oil replenishment branch pipe 401 and a second oil replenishment branch pipe 402. The first oil replenishment branch pipe 401 is connected to the oil replenishment metering pump 7 in a communicating manner, and the second oil replenishment branch pipe 402 is connected to the supply metering pump 8 in a communicating manner. The input ends of the first oil replenishment branch pipe 401 and the second oil replenishment branch pipe 402 are communicated with the upstream section of the oil replenishment pipeline 4, and the output ends of the first oil replenishment branch pipe 401 and the second oil replenishment branch pipe 402 are communicated with the downstream section of the oil replenishment pipeline 4; the supply pipeline 5 is divided into a first supply branch pipe 501 and a second supply branch pipe 502. The first supply branch pipe 501 is connected to the supply metering pump 8 in a communicating manner, and the second supply branch pipe 502 is connected to the oil replenishment metering pump 7 in a communicating manner. The input ends of the first supply branch pipe 501 and the second supply branch pipe 502 are communicated with the upstream section of the supply pipeline 5, and the output ends of the first supply branch pipe 501 and the second supply branch pipe 502 are communicated with the downstream section of the supply pipeline 5. In this embodiment, the oil replenishment pipeline 4 is divided into a first oil replenishment branch pipe 401 connected to the oil replenishment metering pump 7 in a communicating manner and a second oil replenishment branch pipe 402 connected to the supply metering pump 8 in a communicating manner, and the supply pipeline 5 is divided into a first supply branch pipe 501 connected to the supply metering pump 8 in a communicating manner and a second supply branch pipe 502 connected to the oil replenishment metering pump 7 in a communicating manner, enabling the pipeline between the oil replenishment metering pump 7 and the supply metering pump 8 to be interconnected. When the supply metering pump 8 (or the oil replenishment metering pump 7) fails, it can be switched to the oil replenishment metering pump 7 (or the supply metering pump 8) to maintain the conveying function of the oil replenishment pipeline 4 and the supply pipeline 5, ensuring the normal operation of the gear oil supply of the system and improving the stability of the system.

[0025] Such asFigure 2 As shown, in this embodiment, a first ball valve S1 and a second ball valve S2 are provided on the first oil replenishment branch pipe 401, a third ball valve S3 and a fourth ball valve S4 are provided on the second oil replenishment branch pipe 402, a fifth ball valve S5 and a sixth ball valve S6 are provided on the first supply branch pipe 501, and a seventh ball valve S7 and an eighth ball valve S8 are provided on the second supply branch pipe 502. Specifically, in the normal operation state, when the oil storage tank 2 is replenished with oil, the seventh ball valve S7 remains closed, the first ball valve S1 is opened, and the third ball valve S3 is closed, then the gear oil enters the inlet of the oil replenishment metering pump 7 through the first oil replenishment branch pipe 401; the eighth ball valve S8 remains closed, the second ball valve S2 is opened, and the fourth ball valve S4 is closed, then the gear oil is supplied from the outlet of the oil replenishment metering pump 7 to the oil storage tank 2 through the first oil replenishment branch pipe 401 and the downstream section of the oil replenishment pipeline 4. When the oil storage tank 2 supplies oil, the seventh ball valve S7 remains closed, the fifth ball valve S5 is opened, then the gear oil enters the inlet of the supply metering pump 8 through the first supply branch pipe 501; the fourth ball valve S4 remains closed, the sixth ball valve S6 is opened, and the eighth ball valve S8 is closed, then the gear oil is supplied from the outlet of the supply metering pump 8 to the gear oil tank 3 of the stretching machine through the first supply branch pipe 501 and the downstream section of the supply pipeline 5.

[0026] When the oil replenishment metering pump 7 fails, the supply metering pump 8 can both replenish gear oil into the oil storage tank 2 and replenish gear oil into the gear oil tank 3 of the stretching machine. Specifically, when the oil storage tank 2 is replenished with oil, the first ball valve S1 is closed, the third ball valve S3 is opened, then the gear oil enters the inlet of the supply metering pump 8 through the second oil replenishment branch pipe 402; the sixth ball valve S6 is closed, the second ball valve S2 is closed, and the fourth ball valve S4 is opened, then the gear oil is supplied to the oil storage tank 2 through the second oil replenishment branch pipe 402 and the downstream section of the oil replenishment pipeline 4. When the oil storage tank 2 supplies oil, the seventh ball valve S7 remains closed, the fifth ball valve S5 is opened, then the gear oil enters the inlet of the supply metering pump 8 through the first supply branch pipe 501; the fourth ball valve S4 is closed, the sixth ball valve S6 is opened, and the eighth ball valve S8 is closed, then the gear oil is supplied from the outlet of the supply metering pump 8 to the gear oil tank 3 of the stretching machine through the first supply branch pipe 501 and the downstream section of the supply pipeline 5. When the supply metering pump 8 fails, the oil replenishment metering pump 7 can also replenish gear oil into the oil storage tank 2 and replenish gear oil into the gear oil tank 3 of the stretching machine. The working principle is the same as the above, and will not be elaborated here.

[0027] It should be noted that, in this embodiment, the first ball valve S1, the second ball valve S2, the third ball valve S3, the fourth ball valve S4, the fifth ball valve S5, the sixth ball valve S6, the seventh ball valve S7 and the eighth ball valve S8 can be selected as manual valves or electric valves. The electric valves are electrically connected to the central control system 100. The central control system 100 can switch with one key and automatically switch to the oil replenishment metering pump 7 when the supply metering pump 8 fails. A position sensor is installed at the electric valve to detect whether the position of the ball valve is correct.

[0028] During system operation, the second liquid level sensors 10 detect the gear oil levels in the gear oil tanks 3 of their respective drawing machines. When the gear oil level in a drawing machine is lower than the set value, the second liquid level sensor 10 triggers and confirms a refueling request signal, which is transmitted to the central control system 100. The central control system 100 will arrange the refueling deliveries according to the sequence of the refueling request signals from each drawing machine; the central control system 100 opens the supply metering pump 8 according to the sorting, opens the corresponding fluid valve 13, and replenishes the corresponding drawing machine gear oil tank 3 with a fixed amount of gear oil. The refueling volume is set through the human-machine interface 101, and manual or automatic refueling volumes can be set; after the refueling is completed, the central control system 100 automatically records the refueling time, refueling volume, daily reports, monthly reports, etc., and at the same time collects the current refueling information, monitors the gear oil consumption in real time, and sends abnormal data in a timely manner. Similarly, the first liquid level sensor 9 detects the gear oil level in the oil storage tank 2. When the gear oil level in the oil storage tank 2 is lower than the set value, the first liquid level sensor 9 triggers and confirms a refueling request signal, which is transmitted to the central control system 100. The central control system 100 opens the oil replenishment metering pump 7 according to the refueling request of the oil storage tank 2 to replenish the oil storage tank 2 with a fixed amount of gear oil. The oil replenishment metering pump 7 and the electronic weighing device 6 automatically record and generate reports to help optimize management.

[0029] The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art of this technology, the improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent centralized control system for the gear oil of a two-piece can drawing machine, characterized in that, It includes a central control system (100), a gear oil ton barrel station (1), an oil storage tank (2), and several groups of stretching machine gear oil tanks (3). A refueling pipeline (4) is connected in communication between the gear oil ton barrel station (1) and the oil storage tank (2). A supply pipeline (5) is connected in communication between the oil storage tank (2) and the stretching machine gear oil tank (3). An electronic weighing device (6) is provided at the bottom of the oil storage tank (2). A refueling metering pump (7) is provided in the refueling pipeline (4). A supply metering pump (8) is provided in the supply pipeline (5). A first liquid level sensor (9) is provided in the oil storage tank (2). A second liquid level sensor (10) is provided in the stretching machine gear oil tank (3). The electronic weighing device (6), the refueling metering pump (7), the supply metering pump (8), the first liquid level sensor (9), and the second liquid level sensor (10) are respectively electrically connected to the central control system (100).

2. The intelligent centralized control system for the gear oil of the two-piece can stretching machine according to claim 1, wherein, A pressure sensor (11) and a pressure relief valve (12) are provided on the supply pipeline (5). The pressure sensor (11) and the pressure relief valve (12) are electrically connected to the central control system (100).

3. The intelligent centralized control system for the gear oil of the two-piece can stretching machine according to claim 2, characterized in that, A fluid valve (13) and a manual ball valve (14) are further provided on the supply pipeline (5). The fluid valve (13) is electrically connected to the central control system (100).

4. The intelligent centralized control system for the gear oil of the two-piece can stretching machine according to claim 3, characterized in that, A sump base (15) is provided at the bottom of the electronic weighing device (6).

5. The intelligent centralized control system for the gear oil of a two-piece can drawing machine according to claim 4, wherein It further includes an alarm and fault diagnosis module (16). The alarm and fault diagnosis module (16) is electrically connected to the central control system (100).

6. The intelligent centralized control system for the gear oil of a two-piece can drawing machine according to claim 5, characterized in that The central control system (100) is provided with a human-machine interface (101).

7. The intelligent centralized control system for the gear oil of the two-piece can drawing machine according to claim 6, characterized in that, The refueling pipeline (4) is provided with a first refueling branch pipe (401) and a second refueling branch pipe (402). The first refueling branch pipe (401) is connected in communication with the refueling metering pump (7). The second refueling branch pipe (402) is connected in communication with the supply metering pump (8). The input ends of the first refueling branch pipe (401) and the second refueling branch pipe (402) are connected in communication with the upstream section of the refueling pipeline (4). The output ends of the first refueling branch pipe (401) and the second refueling branch pipe (402) are connected in communication with the downstream section of the refueling pipeline (4); The supply pipeline (5) is provided with a first supply branch pipe (501) and a second supply branch pipe (502). The first supply branch pipe (501) is connected in communication with the supply metering pump (8). The second supply branch pipe (502) is connected in communication with the refueling metering pump (7). The input ends of the first supply branch pipe (501) and the second supply branch pipe (502) are connected in communication with the upstream section of the supply pipeline (5). The output ends of the first supply branch pipe (501) and the second supply branch pipe (502) are connected in communication with the downstream section of the supply pipeline (5).

8. The intelligent centralized control system for the gear oil of the two-piece can drawing machine according to claim 7, characterized in that, A first ball valve (S1) and a second ball valve (S2) are provided on the first oil replenishing branch pipe (401), a third ball valve (S3) and a fourth ball valve (S4) are provided on the second oil replenishing branch pipe (402), a fifth ball valve (S5) and a sixth ball valve (S6) are provided on the first supply branch pipe (501), and a seventh ball valve (S7) and an eighth ball valve (S8) are provided on the second supply branch pipe (502).

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