Hydraulic automatic energy storage control system

Abstract

The utility model discloses a hydraulic automatic energy storage control system which is applied to a die casting machine and comprises a control unit, a position sensor and a pressure sensor. The position sensor is arranged on a hammerhead movement path of the die-casting machine and is used for detecting the movement state and the position of the hammerhead; the pressure sensor is connected with an energy storage device of the die-casting machine and is used for detecting the pressure in the energy storage device in real time; the control unit is connected with the position sensor and the pressure sensor and used for controlling the energy storage device to store energy when receiving a first signal of the position sensor. And when the second signal of the pressure sensor is received, energy storage of the energy storage device is stopped.

Description

Technical Field

[0001] The present application relates to the field of automatic control, and in particular to a hydraulic automatic energy storage control system. Background Art

[0002] With the development of economy, the injection force requirements of die-casting machines are gradually increasing to meet the larger die-casting molding area and cavity volume, which requires the die-casting machine to have a larger energy storage pressure.

[0003] In general die-casting processes, the injection action is carried out after the mold is in place. After the injection, the hammer head returns to the initial position. Only when the hammer head returns to the initial position does the energy storage begin. During the energy storage process, the die-casting machine does not perform other actions, causing the energy storage process of the die-casting machine to take too long, seriously reducing the working efficiency of the die-casting machine. Utility Model Content

[0004] To solve the above problems, the embodiment of the present application provides a hydraulic automatic energy storage control system, which is applied to a die casting machine. The system includes: a control unit, a position sensor, and a pressure sensor;

[0005] The position sensor is arranged on the movement path of the hammer head of the die casting machine, and is used to detect the movement state and position of the hammer head;

[0006] The pressure sensor is connected to the energy accumulator of the die-casting machine and is used to detect the pressure in the energy accumulator in real time;

[0007] The control unit is connected to the position sensor and the pressure sensor respectively, and is used to control the energy accumulator to store energy when receiving a first signal from the position sensor; and stop storing energy in the energy accumulator when receiving a second signal from the pressure sensor.

[0008] In a possible implementation, the position sensor is a magnetic scale.

[0009] In a possible implementation, the magnetic scale includes a mold locking magnetic scale, which is arranged at the position where the mold is located and is used to detect the termination of mold locking; the magnetic scale includes a hammer head magnetic scale, which is arranged on the movement path of the hammer head.

[0010] In a possible implementation, the system further includes a visual pressure gauge, which is connected to the energy accumulator and is used to display the pressure in the energy accumulator.

[0011] In a possible implementation, the control unit is a programmable controller or a single-chip microcomputer.

[0012] In a possible implementation, the magnetic scale is used to generate a first signal when the mold locking is terminated or the hammer head is terminated, and send the first signal to the control unit.

[0013] In a possible implementation, the pressure sensor is used to generate a second signal when detecting that the pressure in the energy storage device reaches a preset pressure value, and send the second signal to the control unit.

[0014] In a possible implementation, the system further includes a display unit, which is connected to the control unit and is used to display pressure data.

[0015] The present application can detect the movement state and position of the hammer head by setting a position sensor on the movement path of the hammer head. In general, during the die-casting process, the injection action is carried out after the mold is in place. After the injection is completed, the hammer head returns to the initial position. The hammer head does not move outside this period of time. The present application utilizes this period of time to complete the pressure storage, effectively shortens the waiting time of the energy storage process, reduces the operating time length of a cycle of the die-casting machine, and effectively improves the working efficiency of the die-casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a hydraulic automatic energy storage control system provided by an exemplary embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the action flow of a die-casting machine and a hydraulic automatic energy storage control system provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0020] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0021] See also Figure 1, which is the main structure of the hydraulic automatic energy storage control system. A hydraulic automatic energy storage control system is applied to a die-casting machine. The system includes: a control unit, a position sensor (not shown in the figure), and a pressure sensor; the position sensor is arranged on the motion path of the hammer head of the die-casting machine, and is used to detect the motion state and position of the hammer head; the pressure sensor is connected to the energy storage device of the die-casting machine, and is used to detect the pressure in the energy storage device in real time; the control unit is connected to the position sensor and the pressure sensor respectively, and is used to control the energy storage device to store energy when receiving the first signal from the position sensor; and stop storing energy in the energy storage device when receiving the second signal from the pressure sensor.

[0022] Furthermore, the position sensor is a magnetic scale, including a mold locking magnetic scale, which is arranged at the position of the mold and is used to detect the termination of mold locking, and also includes a hammer head magnetic scale, which is arranged on the movement path of the hammer head.

[0023] When the mold locking is terminated or the hammer head is terminated, the magnetic scale generates a first signal and sends the first signal to the control unit. The control unit determines whether to perform energy storage according to the pressure value inside the energy storage device.

[0024] When the pressure sensor detects that the pressure in the energy storage device reaches a preset pressure value, the pressure sensor generates a second signal and sends the second signal to the control unit to stop the energy storage action.

[0025] Exemplarily, the control unit is a programmable controller (PLC) or a single chip microcomputer.

[0026] Furthermore, the system also includes a visual pressure gauge, which is connected to the energy accumulator and is used to display the pressure in the energy accumulator.

[0027] In the prior art, energy storage is determined based on the energy storage duration to determine whether the energy storage is complete. The hydraulic automatic energy storage control system provided by the utility model uses a pressure sensor to detect the pressure value in the energy storage device in real time, thereby solving the problem of damage to the energy storage device due to excessive energy storage pressure in the prior art.

[0028] The following takes the control unit as PLC as an example to explain the system provided by the present application in combination with the action process. It should be noted that this embodiment is intended to make it easier for readers to understand the functions and connection relationships of the various components of the system provided by the present application, rather than to limit its control methods and algorithms.

[0029] like Figure 2As shown. The die-casting machine and the hydraulic automatic energy storage control system provided by the utility model are powered by the main engine power system. After the die-casting machine completes the injection action, the hammer head returns to the starting position. When the hammer head reaches the starting position, the hammer head magnetic scale will be triggered, and the hammer head magnetic scale will generate a first signal and send the first signal to the control unit. At this time, the energy storage action of the energy storage device begins. During the energy storage action, the die-casting machine mold performs mold opening and ejector actions, takes out the die-cast device, and then the mold performs a mold locking action. When the mold locking is terminated, the mold locking magnetic scale will be triggered, and the mold locking magnetic scale will generate a first signal and send the first signal to the control unit. The control unit determines the pressure in the energy storage device. If the preset pressure is not reached, the energy storage action of the energy storage device will be started. This process can effectively solve the problem that the die-casting machine fails to release the energy immediately after the energy storage is completed, resulting in a decrease in the pressure value, and the yield is reduced due to insufficient pressure.

[0030] The hydraulic automatic energy storage control system provided by the utility model can set the target pressure value in the energy storage device according to the die-casting requirements of the customer's mold. The sensor will intelligently detect the action of the die-casting machine and start energy storage after the two action nodes of the return hammer in place action and the mold closing in place.

[0031] The system provided by the utility model also includes a display unit. When working, the pressure sensor monitors in real time and transmits pressure data to the PLC control system. The pressure data is displayed in real time on the display unit. At the same time, an external visual pressure gauge can directly read the pressure value. The PLC transmits a signal to the CNC regulator to control whether the energy storage device is working.

[0032] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned utility model concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form a technical solution.

[0033] Those skilled in the art will readily come up with other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application.

[0034] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0035] It should be understood that the "plurality" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A hydraulic automatic energy storage control system, applied to a die casting machine, characterized in that: include: Control unit, position sensor, pressure sensor; The position sensor is arranged on the movement path of the hammer head of the die casting machine, and is used to detect the movement state and position of the hammer head; The pressure sensor is connected to the energy accumulator of the die-casting machine and is used to detect the pressure in the energy accumulator in real time; The control unit is connected to the position sensor and the pressure sensor respectively, and is used to control the energy accumulator to store energy when receiving a first signal from the position sensor; and stop storing energy in the energy accumulator when receiving a second signal from the pressure sensor.

2. A hydraulic automatic energy storage control system according to claim 1, characterized in that: The position sensor is a magnetic scale.

3. A hydraulic automatic energy storage control system according to claim 2, characterized in that: The magnetic scale includes a mold locking magnetic scale, which is arranged at the position where the mold is located and is used to detect the termination of mold locking; the magnetic scale includes a hammer head magnetic scale, which is arranged on the movement path of the hammer head.

4. A hydraulic automatic energy storage control system according to claim 1, characterized in that: The system further comprises a visual pressure gauge connected to the accumulator for displaying the pressure in the accumulator.

5. A hydraulic automatic energy storage control system according to claim 1, characterized in that: The control unit is a programmable controller or a single chip microcomputer.

6. A hydraulic automatic energy storage control system according to claim 3, characterized in that: The magnetic scale is used to generate a first signal when the mold locking is terminated or the hammer head is terminated, and send the first signal to the control unit.

7. A hydraulic automatic energy storage control system according to claim 1, characterized in that: The pressure sensor is used to generate a second signal when detecting that the pressure in the energy storage device reaches a preset pressure value, and send the second signal to the control unit.

8. A hydraulic automatic energy storage control system according to claim 1, characterized in that: The system further comprises a display unit, which is connected to the control unit and is used for displaying pressure data.

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