Proportional valve control sliding block system of magnetic material press

Abstract

The utility model discloses a proportional valve control sliding block system of a magnetic material press, which comprises a main cylinder, oil tanks and an oil way control system, a piston of the main cylinder is connected with a sliding block, the oil tanks comprise a first oil tank and a second oil tank, and the oil way control system comprises a detection module; one end of the main oil way is connected with the main cylinder, and the other end is connected with a third cartridge valve; the sliding block ascending oil way is connected to the third cartridge valve and the first oil tank, and a servo motor, a main pump, a first cartridge valve and a second cartridge valve are arranged on the sliding block ascending oil way; the sliding block descending oil way is connected to the third cartridge valve and the second oil tank, a proportional valve is arranged on the sliding block descending oil way, and through accurate control of the proportional valve, the system can achieve continuous, accurate and rapid adjustment of the movement of the sliding block. The proportional valve can control the flow of oil flow in proportion according to an input electrical signal, so that accurate control over the descending speed and position of the sliding block is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a proportional valve control slide block system of a magnetic material press. Background Art

[0002] In industrial automation and hydraulic oil circuit control systems, slider motion control is a key technical field. Traditional slider motion control mainly relies on mechanical or hydraulic adjustment devices, which have many limitations in terms of precise control, response speed and degree of automation.

[0003] In the prior art, the movement of the slider is usually achieved by changing the flow direction of the oil in the piston rod cavity. When the piston rod cavity is filled with oil, the piston drives the slider up; when the piston rod cavity is drained of oil, the piston drives the slider down. Although this control method is simple and direct, it lacks precise flow control, making it difficult to accurately control the movement speed and position of the slider.

[0004] In order to achieve precise control of the movement of the slider, detection equipment such as displacement sensors and pressure gauges are introduced in the prior art to monitor the position of the slider and the pressure in the piston rod cavity in real time. However, this control method still relies on manual adjustment and monitoring, and cannot achieve automated and intelligent control.

[0005] In addition, in terms of descent control, the existing technology usually uses cartridge valves and solenoid valves to control the oil discharge volume, thereby adjusting the speed of the slider descent. However, this control method has problems such as low adjustment accuracy, slow response speed, and complex operation, which makes it difficult to meet the production requirements of high precision and high efficiency. Utility Model Content

[0006] In order to overcome at least one of the defects of the prior art, the utility model provides a proportional valve control slider system of a magnetic material press, which can realize precise control of the slider movement.

[0007] The technical solution adopted by the utility model to solve the problem is:

[0008] A proportional valve controlled slider system of a magnetic material press comprises a master cylinder, an oil tank and an oil circuit control system, wherein the piston of the master cylinder is connected to a slider, the oil tank comprises a first oil tank and a second oil tank, and the oil circuit control system comprises: a detection module; a total oil circuit, wherein one end of the total oil circuit is connected to the master cylinder, and the other end is connected to a third cartridge valve; a slider rising oil circuit, wherein one end of the slider rising oil circuit is connected to the third cartridge valve, and the other end is connected to the first oil tank, and a servo motor, a main pump, a first cartridge valve and a second cartridge valve are arranged on the slider rising oil circuit; a slider descending oil circuit, wherein one end of the slider descending oil circuit is connected to the third cartridge valve, and the other end is connected to the second oil tank, and a proportional valve is arranged on the slider descending oil circuit.

[0009] By adopting the above scheme, the system can achieve continuous, accurate and rapid regulation of the sliding block's descending motion through the precise control of the proportional valve. The proportional valve can proportionally control the flow of the oil flow according to the input electrical signal, thereby achieving precise control of the descending speed and position. This control method is more flexible and accurate than traditional mechanical or hydraulic adjustment devices.

[0010] Furthermore, the main oil circuit includes a pressure gauge, and the third cartridge valve is connected to a second solenoid valve for controlling the communication between the third cartridge valve and the slider rising oil circuit or the slider descending oil circuit.

[0011] By adopting the above solution, whether the slider is rising or falling, the total oil circuit will be monitored by the pressure gauge. The real-time monitoring of the oil pressure in the total oil circuit by the pressure gauge can ensure the safety of the total oil circuit during the slider's rising or falling process. If the oil pressure is abnormal, the pressure gauge will display it in time, thereby reminding the operator or the oil circuit control system to take corresponding measures, which helps to improve the safety and stability of the system.

[0012] Furthermore, when the slider rises, the servo motor drives the main pump to make the oil in the first oil tank flow through the driving main pump, the first cartridge valve, the second cartridge valve, and the third cartridge valve in sequence and then enter the master cylinder.

[0013] By adopting the above solution, during the entire process of the slider rising, the oil circuit control system will continuously adjust the working status of the servo motor, main pump and each cartridge valve according to the data fed back by the detection module to achieve precise control of the slider rising speed, position and accuracy. This control method not only improves the stability and reliability of the slider movement, but also greatly improves the efficiency and accuracy of production, and realizes closed-loop control of the slider rising.

[0014] Furthermore, an overflow valve is provided between the main oil circuit and the slide block descending oil circuit.

[0015] By adopting the above solution, the overflow valve can adjust the oil pressure of the piston rod chamber of the piston. During the movement of the slider, when the pressure of the piston rod chamber of the piston exceeds the set value, the overflow valve will open to return the excess oil to the second oil tank.

[0016] Furthermore, when the sliding block descends, the oil in the piston of the master cylinder flows through the third cartridge valve and the proportional valve in sequence and then enters the second oil tank.

[0017] By adopting the above scheme, during the whole process of the slider's descent, the oil circuit control system will continuously adjust the working state of valves such as proportional valves and cartridge valves according to the data fed back by the detection module to ensure that the speed, position and accuracy of the slider's descent meet the preset requirements, and combined with the data fed back by the detection module, the closed-loop control of the slider's descent is realized. The relief valve controls the piston rod cavity pressure of the piston by adjusting the opening degree of the valve core, thereby ensuring the safety of the piston.

[0018] Furthermore, a filter connected to the proportional valve is also provided on the slide block descending oil circuit, and the filter is used to filter the pilot control oil of the proportional valve.

[0019] By adopting the above solution, the pilot control oil of the proportional valve can be filtered through a filter to remove impurities and contaminants therein, thereby ensuring the cleanliness of the pilot control oil, helping to ensure the precise control and stable operation of the proportional valve, and thereby improving the smoothness and accuracy of the slider descent.

[0020] Furthermore, a transmitter connected to the filter is also provided on the sliding block descending oil circuit.

[0021] By adopting the above solution, the pollution degree of the filter element can be monitored by the transmitter. When the filter element is gradually blocked due to intercepted impurities, the transmitter can send a signal to remind the operator to replace the filter element in time to ensure the filtering effect and stable operation of the system.

[0022] Furthermore, the second cartridge valve of the slider rising oil circuit is connected to the first solenoid valve, and the proportional valve is communicated with the slider rising oil circuit.

[0023] By adopting the above solution, it is helpful to control the on-off of the oil in the oil circuit of the slider riser, ensuring that the oil flows through the second cartridge valve under specific time and conditions, thereby ensuring the accuracy and stability of production.

[0024] Furthermore, the first cartridge valve is a one-way valve.

[0025] By adopting the above solution, oil backflow can be effectively prevented, which can protect the main pump.

[0026] Furthermore, the detection module is a displacement sensor.

[0027] By adopting the above solution, the displacement sensor can monitor the displacement changes of the slider in real time and provide accurate data support for the oil circuit control system, thereby ensuring stable operation and efficient production of the system.

[0028] In summary, the proportional valve control slider system of a magnetic material press provided by the utility model has the following technical effects:

[0029] 1. The system uses a proportional valve as a control element, which can proportionally control the flow of oil according to the input electrical signal, thereby achieving precise control of the slider's descending speed and position. This precise control can meet the needs of high-precision production and improve product quality;

[0030] 2. The proportional valve has a fast control response speed and can quickly adjust the movement state of the slider. Compared with traditional mechanical or hydraulic adjustment devices, this system has higher dynamic response performance and can adapt to rapidly changing production needs;

[0031] 3. The proportional valve can realize continuous adjustment of the oil flow, so that the movement speed and position of the slider can transition smoothly, avoiding the jump or impact phenomenon that may occur in the traditional control method, and improving the stability and reliability of the equipment;

[0032] 4. The system is equipped with detection modules, such as displacement sensors, which can monitor the position and status of the slider in real time and feed back this information to the oil circuit control system. The oil circuit control system automatically adjusts the output of the proportional valve according to the feedback information, realizing automatic control of the slider movement. This automatic control method reduces the need for manual intervention and improves production efficiency and safety;

[0033] 5. The setting of the total oil circuit can ensure that the piston rod chamber pressure of the piston will not exceed the set value. At the same time, the setting of the first oil tank and the second oil tank can respectively store the oil required when the slider rises and falls, ensuring the continuous and stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the system structure of an embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of the connection structure of the sliding block ascending oil circuit according to an embodiment of the utility model;

[0036] Figure 3 This is a schematic diagram of the connection structure of the sliding block descending oil circuit of the utility model embodiment

[0037] Among them, the meanings of the accompanying drawings are as follows: 1. main cylinder; 11. slider; 12. piston; 2. first oil tank; 3. second oil tank; 4. detection module; 5. main oil circuit; 51. pressure gauge; 52. overflow valve; 6. slider rising oil circuit; 61. servo motor; 62. main pump; 63. first cartridge valve; 64. second cartridge valve; 65. third cartridge valve; 7. slider descending oil circuit; 71. first solenoid valve; 72. second solenoid valve; 73. proportional valve; 74. filter; 75. transmitter. DETAILED DESCRIPTION

[0038] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] Embodiment 1 of the present utility model is referred to Figure 1As shown, a proportional valve control slider system of a magnetic material press is disclosed, including a main cylinder 1, an oil tank and an oil circuit control system, wherein the piston 12 of the main cylinder 1 is connected to a slider 11, the oil tank includes a first oil tank 2 and a second oil tank 3, the oil circuit control system includes a detection module 4, a main oil circuit 5, a slider rising oil circuit 6 and a slider descending oil circuit 7, preferably, the detection module 4 is a displacement sensor, which can monitor the displacement change of the slider 11 in real time, and provide accurate data support for the oil circuit control system, thereby ensuring stable operation and efficient production of the system. One end of the main oil circuit 5 is connected to the master cylinder 1, and the other end is connected to the third cartridge valve 65. One end of the slider rising oil circuit 6 is connected to the third cartridge valve 65, and the other end is connected to the first oil tank 2. The slider rising oil circuit 6 is provided with a servo motor 61, a main pump 62, a first cartridge valve 63 and a second cartridge valve 64. One end of the slider descending oil circuit 7 is connected to the third cartridge valve 65, and the other end is connected to the second oil tank 3. A proportional valve 73 is provided on the slider descending oil circuit 7, and the proportional valve 73 is also connected to the slider rising oil circuit 6. Through the precise control of the proportional valve 73, the system can achieve continuous, precise and rapid regulation of the movement of the slider 11. The proportional valve 73 can proportionally control the flow of the oil flow according to the input electrical signal, thereby achieving precise control of the descending speed and position of the slider 11. This control method is more flexible and accurate than traditional mechanical or hydraulic adjustment devices.

[0043] In this embodiment 1, the main oil circuit 5 includes a pressure gauge 51. The slider rising oil circuit 6 and the slider descending oil circuit 7 converge to the third cartridge valve 65 and are connected in series with the main oil circuit 5. An overflow valve 52 is provided between the main oil circuit 5 and the slider descending oil circuit 7. The pressure gauge 51 is used to detect the real-time pressure of the piston rod chamber of the master cylinder 1. The overflow valve 52 is used to protect the piston rod chamber pressure from exceeding the working pressure. Regardless of whether the slider 11 rises or descends, the oil pressure in the oil circuit will be monitored by the pressure gauge 51.

[0044] In some embodiments, a filter 74 and an indicator 75 may be provided on the slider descending oil circuit 7. The filter 74 is used to filter the pilot control oil of the proportional valve 73 so that the proportional valve 73 can work stably. The indicator 75 is used to detect the blockage of the filter 74. When the indicator 75 is triggered to alarm, the filter element of the filter 74 needs to be replaced.

[0045] In the present embodiment 1, the third cartridge valve 65 is connected to the second solenoid valve 72, and the second cartridge valve 64 is connected to the first solenoid valve 71. The second solenoid valve 72 is used to control the third cartridge valve 65 to open or close, so that when the slider 11 descends, the third cartridge valve 65 connects the main oil circuit 5 with the slider descending oil circuit 7, and when the slider 11 ascends, the third cartridge valve 65 connects the main oil circuit 5 with the slider ascending oil circuit 6. The first solenoid valve 71 is used to control the second cartridge valve 64 to open or close.

[0046] See also Figure 1 and 2 As shown, when the slider 11 rises, the servo motor 61 drives the main pump 62 to make the oil in the first oil tank 2 flow through the driving main pump 62, the first cartridge valve 63, the second cartridge valve 64, and the third cartridge valve 65 in sequence and then enter the master cylinder 1. The first cartridge valve 63 is a one-way valve used to protect the main pump 62. Specifically, the servo motor 61 drives the main pump 62, and the main pump 62 sucks oil from the first oil tank 2. The high-pressure oil output by the main pump 62 enters the piston rod chamber of the master cylinder 1 through the first cartridge valve 63, the second cartridge valve 64, and the third cartridge valve 65, pushing the piston 12 to drive the slider 11 to rise. By controlling the speed of the servo motor 61, the output flow of the main pump 62 can be controlled, thereby controlling the rising speed of the slider 11. The speed of the servo motor 61 can be set when the slider 11 is in different positions according to the actual working conditions. It can also be combined with a displacement sensor to achieve closed-loop control of the rise of the slider 11.

[0047] See also Figure 1 and 3 As shown, when the slider 11 descends, the oil in the piston 12 of the master cylinder 1 flows through the third cartridge valve 65 and the proportional valve 73 in sequence and then enters the second oil tank 3. Specifically, the piston rod chamber discharges oil to the second oil tank 3 through the third cartridge valve 65 and the proportional valve 73, so that the piston 12 drives the slider 11 to descend. By setting the flow of the proportional valve 73, the speed of the slider can be controlled. The flow of the proportional valve 73 can be set through the human-machine interface so that the movement process of the slider 11 meets different process requirements, improves the quality of the product, and is easy to operate. It can also be combined with a displacement sensor to achieve closed-loop control of the descent of the slider 11.

[0048] It should be noted that in this embodiment 1, the specific hydraulic press is a magnetic material press, which is not specifically limited in other embodiments.

[0049] In summary, the proportional valve control slider system of a magnetic material press provided by the utility model has the following technical effects:

[0050] 1. The system uses a proportional valve 73 as a control element, which can proportionally control the flow of oil according to the input electrical signal, thereby achieving precise control of the descending speed and position of the slider 11. This precise control can meet the needs of high-precision production and improve product quality;

[0051] 2. The proportional valve 73 has a fast control response speed and can quickly adjust the motion state of the slider 11. Compared with traditional mechanical or hydraulic adjustment devices, this system has higher dynamic response performance and can adapt to rapidly changing production needs;

[0052] 3. The proportional valve 73 can realize continuous adjustment of the oil flow rate, so that the movement speed and position of the slider 11 can be smoothly transitioned, avoiding the jump or impact phenomenon that may occur in the traditional control method, and improving the stability and reliability of the equipment;

[0053] 4. The system is equipped with a detection module 4, such as a displacement sensor, which can monitor the position and state of the slider 11 in real time and feed back this information to the oil circuit control system. The oil circuit control system automatically adjusts the output of the proportional valve 73 according to the feedback information, thus realizing automatic control of the movement of the slider 11. This automatic control method reduces the need for manual intervention and improves production efficiency and safety;

[0054] 5. The setting of the main oil circuit 5 can ensure that the pressure of the piston rod chamber of the piston 12 will not exceed the set value. At the same time, the setting of the first oil tank 2 and the second oil tank 3 can respectively store the oil required for the slider 11 to rise and fall, ensuring the continuous and stable operation of the system.

[0055] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A proportional valve control slider system for a magnetic material press, comprising a main cylinder (1), an oil tank and an oil circuit control system, wherein the piston (12) of the main cylinder (1) is connected to a slider (11), and is characterized in that: The oil tank comprises a first oil tank (2) and a second oil tank (3), and the oil circuit control system comprises: Detection module (4); A main oil circuit (5), one end of the main oil circuit (5) is connected to the master cylinder (1), and the other end is connected to a third cartridge valve (65); a slider raising oil circuit (6), one end of the slider raising oil circuit (6) being connected to the third cartridge valve (65) and the other end being connected to the first oil tank (2), and the slider raising oil circuit (6) being provided with a servo motor (61), a main pump (62), a first cartridge valve (63) and a second cartridge valve (64); A slider descending oil circuit (7), one end of the slider descending oil circuit (7) is connected to the third cartridge valve (65), and the other end is connected to the second oil tank (3), and a proportional valve (73) is provided on the slider descending oil circuit (7).

2. A proportional valve control slide system for a magnetic material press according to claim 1, characterized in that: The main oil circuit (5) includes a pressure gauge (51), and the third cartridge valve (65) is connected to a second solenoid valve (72) for controlling the communication between the third cartridge valve (65) and the slider ascending oil circuit (6) and the slider descending oil circuit (7).

3. The proportional valve control slide system of a magnetic material press according to claim 1, characterized in that: When the slider (11) rises, the servo motor (61) drives the main pump (62) to make the oil in the first oil tank (2) flow through the driving main pump (62), the first cartridge valve (63), the second cartridge valve (64), and the third cartridge valve (65) in sequence and then enter the main cylinder (1).

4. The proportional valve control slide system of a magnetic material press according to claim 2, characterized in that: An overflow valve (52) is provided between the main oil circuit (5) and the slide block descending oil circuit (7).

5. A proportional valve control slide system for a magnetic material press according to claim 4, characterized in that: When the slide block (11) descends, the oil in the piston (12) of the master cylinder (1) flows sequentially through the third cartridge valve (65) and the proportional valve (73) and then enters the second oil tank (3).

6. The proportional valve control slide system of a magnetic material press according to claim 1, characterized in that: The slide block descending oil circuit (7) is also provided with a filter (74) which is in communication with the proportional valve (73), and the filter (74) is used to filter the pilot control oil of the proportional valve (73).

7. A proportional valve control slide system for a magnetic material press according to claim 6, characterized in that: The slide block descending oil circuit (7) is also provided with a signal transmitter (75) which is in communication with the filter (74).

8. The proportional valve control slide system of a magnetic material press according to claim 2, characterized in that: The second cartridge valve (64) of the slider ascending oil circuit (6) is connected to the first solenoid valve (71), and the proportional valve (73) is in communication with the slider ascending oil circuit (6).

9. The proportional valve control slide system of a magnetic material press according to claim 1, characterized in that: The first cartridge valve (63) is a one-way valve.

10. The proportional valve control slide system of a magnetic material press according to claim 1, characterized in that: The detection module (4) is a displacement sensor.

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