Multi-pump servo motor driving module for ferrite powder press

Abstract

A multi-pump servo motor driving module for a ferrite powder press comprises a main driver, a first slave driver and a second slave driver, a power supply port of the main driver is connected with a main servo motor, power supply ports of the first slave driver and the second slave driver are respectively connected with a first slave servo motor and a second slave servo motor, and the first slave driver and the second slave driver are respectively connected with the main driver and the second slave driver. The ferrite powder pressing machine has the beneficial effects that firstly, the ferrite powder pressing machine realizes multi-pump linkage operation, part of procedures can be overlapped and carried out at the same time, the waiting time between the forming procedures is reduced, and the forming period is greatly shortened; secondly, the servo motor pump is used for closed-loop control, oil can be reasonably supplied to different hydraulic pumps according to the requirements of all working procedures, and different moments, angles and speeds needed by different working procedures are matched;

Description

Technical Field

[0001] This utility model relates to the field of hydraulic drive, specifically to a drive module for a ferrite powder press that can control multiple pumps in a coordinated manner. This module uses a servo motor pump to achieve closed-loop control. Background Technology

[0002] The common working process of a ferrite powder press includes feeding, mold clamping, pressing, and ejection, each requiring its own hydraulic cylinder for operation. The forces required for mold clamping, pressing, and ejection are all crucial, with ejection requiring the greatest force. To ensure the continuous operation of these processes and reduce waiting time, a traditional solution uses a single pump with multiple oil supply lines, each controlled by a corresponding solenoid valve. However, this traditional approach results in each process being performed sequentially, extending the molding cycle and significantly reducing production efficiency. Therefore, a technical solution is needed to address the problems of long molding cycles and low efficiency. Utility Model Content

[0003] This utility model provides a multi-pump servo motor drive module for a ferrite powder press. The ferrite powder press realizes multi-pump linkage operation, such as completing mold locking while pressing, reducing the waiting time between each molding process, and greatly shortening the molding cycle. In addition, it can reasonably supply oil to different hydraulic pumps according to the needs of each process, matching the different torques, angles and speeds required by different processes.

[0004] The following describes the technical solution: a multi-pump servo motor drive module for a ferrite powder press, including a main driver 1, whose power supply port is connected to a main servo motor 4. The drive module also includes a first slave driver 2 and a second slave driver 5, whose power supply ports are respectively connected to a first slave servo motor 6 and a second slave servo motor 7. The main driver 1, the first slave driver 2, and the second slave driver 5 are interconnected via a bus 3. Each of the main driver 1, the first slave driver 2, and the second slave driver 5... The pressure feedback interface is connected to the oil outlet of the corresponding first pump 11, second pump 12, and third pump 13 through the first pressure sensor 8, the second pressure sensor 9, and the third pressure sensor 10, respectively. The oil outlet of the second pump 12 and the third pump 13 are also provided with a first solenoid valve 14 and a second solenoid valve 15, respectively. The normally closed ports of the first solenoid valve 14 and the second solenoid valve 15 are connected to the oil outlet of the first pump 11 through their respective first check valve 16 and second check valve 17. The first solenoid valve 14 and the first solenoid valve 15 are each provided with an independent oil outlet.

[0005] Preferably, the first oil outlet 18 of the first pump 11, the second oil outlet 19 corresponding to the first solenoid valve 14, and the third oil outlet 20 of the second solenoid valve 15 are respectively connected to the hydraulic cylinder of the actuator of the ferrite powder press.

[0006] Preferably, the first solenoid valve 14 and the second solenoid valve 15 are reversing solenoid valves.

[0007] The beneficial effects of the present utility model are as follows: The first pump 11, the second pump 12, and the third pump 13 are respectively controlled by different drivers, and each driver is controlled by a controller. The drivers are connected to each other through a bus, making the first pump 11, the second pump 12, and the third pump 1 independent of each other and unified at the same time, completing the shunt and confluence operations.

[0008] Therefore, the beneficial effects of this solution are: First, the ferrite powder press realizes multi-pump linkage operation, and some processes can be superimposed and carried out simultaneously, reducing the waiting time between the forming processes, and greatly shortening the forming cycle. Second, the servo motor pump is used for closed-loop control, which can reasonably supply oil to different hydraulic pumps according to the requirements of each process, and match the different torques, angles, and speeds required for different processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a structural diagram of the hydraulic system of the multi-pump servo motor drive module for the ferrite powder press described in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0010] The present utility model will be further described in conjunction with the following specific embodiments.

[0011] Figure 1 The markings in are as follows: main driver 1, first slave driver 2, bus 3, main servo motor 4, second slave driver 5, first slave servo motor 6, second slave servo motor 7, first pressure sensor 8, second pressure sensor 9, third pressure sensor 10, first pump 11, second pump 12, third pump 13, first solenoid valve 14, second solenoid valve 15, first check valve 16, second check valve 17, first oil outlet 18, second oil outlet 19, third oil outlet 20.

[0012] A multi-pump servo motor drive module for a ferrite powder press includes a main driver 1, whose power supply port is connected to a main servo motor 4. The drive module also includes a first slave driver 2 and a second slave driver 5, whose power supply ports are respectively connected to a first slave servo motor 6 and a second slave servo motor 7. The main driver 1, the first slave driver 2, and the second slave driver 5 provide the main servo motor 4, the first slave servo motor 6, and the second slave servo motor 7 with the required driving current and time, respectively, to control the servo motor components to move precisely as required. The servo motors are equipped with encoders to feed back error signals to each driver, allowing the drivers to achieve error compensation, thereby realizing precise closed-loop control.

[0013] The master driver 1, the first slave driver 2, and the second slave driver 5 are interconnected via a bus 3. The programmable controller is connected to the master driver 1, the first slave driver 2, and the second slave driver 5. The bus enables the drivers to cooperate with each other to complete the machine-specified operations.

[0014] The pressure feedback interfaces of the main driver 1, the first slave driver 2, and the second slave driver 5 are respectively connected to the oil outlets of the corresponding first pump 11, second pump 12, and third pump 13 via the first pressure sensor 8, the second pressure sensor 9, and the third pressure sensor 10. The oil outlets of the second pump 12 and the third pump 13 are also equipped with a first solenoid valve 14 and a second solenoid valve 15, respectively. The normally closed ports of the first solenoid valve 14 and the second solenoid valve 15 are connected to the oil outlet of the first pump 11 via their respective first check valve 16 and second check valve 17. The first solenoid valve 14 and the first solenoid valve 15 each have independent oil outlets. Depending on actual usage requirements, the oil can be drawn from the first check valve 16 and the second check valve 17 to the first oil outlet 18, completing a merging operation; or it can be drawn separately from the first oil outlet 18, the second oil outlet 19, and the third oil outlet 20, completing a diversion operation.

[0015] Preferably, the first oil outlet 18 of the first pump 11, the second oil outlet 19 corresponding to the first solenoid valve 14, and the third oil outlet 20 of the second solenoid valve 15 are respectively connected to the hydraulic cylinder of the ferrite powder press actuator. Precise oil supply controls the precise movement of each component of the hydraulic actuator.

[0016] The first solenoid valve 14 and the second solenoid valve 15 are reversing solenoid valves, which can adjust the flow direction as needed.

[0017] Finally, it should be noted that this embodiment is a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-pump servo motor drive module for a ferrite powder press, comprising a main driver (1), wherein the power supply port of the main driver (1) is connected to a main servo motor (4), characterized in that, The drive module further includes a first slave driver (2) and a second slave driver (5). The power supply ports of the first slave driver (2) and the second slave driver (5) are respectively connected to the first slave servo motor (6) and the second slave servo motor (7). The master driver (1), the first slave driver (2), and the second slave driver (5) are interconnected via a bus (3). The pressure feedback interfaces of the master driver (1), the first slave driver (2), and the second slave driver (5) are respectively connected to the first pressure sensor (8), the second pressure sensor (9), and the third pressure sensor (8). Pressure sensor (10) is connected to the oil outlet of the corresponding first pump (11), second pump (12), and third pump (13). The oil outlet of the second pump (12) and the third pump (13) are also provided with a first solenoid valve (14) and a second solenoid valve (15). The normally closed ports of the first solenoid valve (14) and the second solenoid valve (15) are connected to the oil outlet of the first pump (11) through their respective first check valve (16) and second check valve (17). The first solenoid valve (14) and the second solenoid valve (15) are each provided with an independent oil outlet.

2. The multi-pump servo motor drive module for a ferrite powder press according to claim 1, characterized in that, The first oil outlet (18) of the first pump (11), the second oil outlet (19) corresponding to the first solenoid valve (14), and the third oil outlet (20) of the second solenoid valve (15) are respectively connected to the hydraulic cylinder of the ferrite powder press actuator.

3. The multi-pump servo motor drive module for a ferrite powder press according to claim 1, characterized in that, The first solenoid valve (14) and the second solenoid valve (15) are directional solenoid valves.

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