Multi-cylinder synchronous control ejection equipment for large forgings

Abstract

A multi-cylinder synchronously controlled ejection equipment for large forgings includes an oil tank, an electric motor oil pump, a left and right oil cylinder control electromagnetic reversing valve connected to the electric motor oil pump via a branch pipeline, connected to the oil tank oil via a pipeline, and controlling the left and right oil cylinders via an oil inlet pipeline and an oil return pipeline; an intermediate oil cylinder control electromagnetic reversing valve connected to the left and right oil cylinder control electromagnetic reversing valves via another branch pipeline and connected to the electric motor oil pump via an oil inlet pipeline and an oil return pipeline; a left and right oil cylinder diverter valve connected to the left and right oil cylinder control electromagnetic reversing valves; a left oil cylinder and a right oil cylinder connected to the left and right oil cylinder diverter valves; a one-way throttle valve connected to the intermediate oil cylinder control electromagnetic reversing valve; and an intermediate oil cylinder connected to the one-way throttle valve. The present invention has a simple structure, convenient operation, easy adjustment, stable synchronous operation, strong anti-eccentric load capability, high ejection force, reliable ejection of forgings, and ensured quality of forgings ejected from the die. It can be widely used in the ejection process of large forgings during press forming.

Description

Technical Field

[0001] The invention relates to a multi-cylinder synchronous control ejection equipment for large forgings, which can be widely used in the ejection process of large forgings during pressure forming. Background Art

[0002] During the die forging process of large forgings, the large forgings need to be driven vertically, that is, the forgings need to be ejected from the die cavity. Since large forgings are large in size and are affected by their own gravity, the ejection power is large, and a single cylinder cannot complete the ejection task. Especially when large forgings are irregular in shape and large in appearance, more than two cylinders are required to eject the workpiece. The existing ejection device has inaccurate hydraulic control, which can easily lead to asynchronous ejection speeds when multiple cylinders are linked, deviations in the positions of the ejection points, and the forgings cannot be ejected from the die cavity smoothly. Even because the cylinders are not synchronized, it is easy to cause overload and damage to the forgings. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-cylinder synchronous control ejection large forging equipment with simple structure, convenient operation, easy adjustment, stable synchronous operation, strong anti-eccentric load ability, large ejection force, reliable ejection of forgings, and ensured quality of forgings ejected from the die.

[0004] In order to achieve the above-mentioned purpose, the multi-cylinder synchronous control ejection equipment of the present invention includes an oil tank, an electric motor oil pump connected by a pipeline inserted into the oil tank, a left and right oil cylinder control electromagnetic reversing valve connected to the electric motor oil pump through a branch pipeline, connected to the oil tank through a pipeline, and controlling the left oil cylinder and the right oil cylinder through an oil inlet pipeline and an oil return pipeline, an intermediate oil cylinder control electromagnetic reversing valve connected to the electric motor oil pump through another branch pipeline, and controlling the intermediate oil cylinder through an oil inlet pipeline and an oil return pipeline, a left and right oil cylinder diverter valve connected to the left and right oil cylinder control electromagnetic reversing valves through a pipeline, a left cylinder and a right cylinder connected to the left and right oil cylinder diverter valves through a diversion pipeline, a one-way throttle valve connected to the intermediate oil cylinder control electromagnetic reversing valve through a pipeline and adjusting the flow rate to be consistent with the output flow rate of the left and right oil cylinder diverter valve, and an intermediate oil cylinder connected to the one-way throttle valve through a pipeline.

[0005] The present invention provides equipment for ejecting large forgings with multi-cylinder synchronous control. When the left cylinder and the right cylinder are linked, left and right cylinder diverter valves are used to distribute the flow of hydraulic oil to the lower chambers of the left cylinder and the right cylinder at the same flow rate in a ratio of 1:1, so that the hydraulic oil of the two cylinders is evenly diverted, the actions of the two cylinders are guaranteed to be consistent, and the left cylinder and the right cylinder can move synchronously.

[0006] The present invention provides equipment for ejecting large forgings through multi-cylinder synchronous control. When the left cylinder, right cylinder and middle cylinder are linked together, left and right cylinder diverter valves and a one-way throttle valve are used to adjust the output flow rate, so that the regulated output flow rate of the left and right cylinder diverter valves is consistent with the regulated output flow rate of the one-way throttle valve, and the same flow rate is distributed to the lower chambers of the left cylinder, right cylinder and middle cylinder, so that the hydraulic oil of the three cylinders is evenly diverted, the actions of the three cylinders are guaranteed to be consistent, and the left cylinder, middle cylinder and right cylinder can be synchronously moved.

[0007] The multi-cylinder synchronous control ejection equipment for large forgings of the present invention has the following working principle: when the left and right cylinders are working, the left and right cylinder diverter valves are used to distribute the hydraulic oil flows of the left and right cylinders to the lower chambers of the left and right cylinders in a ratio of 1:1, so that the hydraulic oil of the two cylinders is evenly distributed, and the left and right cylinders work synchronously. When the left, middle, and right cylinders are working simultaneously, the left and right cylinder diverter valves are used to distribute the hydraulic oil flows of the left and right cylinders to the lower chambers of the left and right cylinders in a ratio of 1:1, and then the flow of the middle cylinder is adjusted by the one-way throttle valve so that the flow of the middle cylinder is consistent with that of the left and right cylinders. The hydraulic oil of the three cylinders is evenly distributed, and the three cylinders move in unison, ensuring the synchronous movement of the three cylinders.

[0008] The multi-cylinder synchronous control ejection equipment for large forgings of the present invention has a simple structure and is easy to operate. The flow is adjusted by the left and right oil cylinder diverter valves and the one-way throttle valve, and the adjustment is easy. The hydraulic oil of each oil cylinder is evenly diverted, ensuring that the two-cylinder or three-cylinder ejection work synchronously and run smoothly during synchronous operation.

[0009] The multi-cylinder synchronously controlled ejection equipment for large forgings of the present invention adopts multi-cylinder ejection, has strong anti-eccentric load capability, large ejection force, reliable ejection of forgings, and ensures the ejection quality of forgings.

[0010] In summary, the multi-cylinder synchronously controlled ejection equipment for large forgings of the present invention has a simple structure, convenient operation, easy adjustment, stable synchronous operation, strong anti-eccentric load capability, large ejection force, reliable ejection of forgings, and ensured quality of forgings ejected from the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments thereof.

[0012] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0013] exist Figure 1In the invention, the multi-cylinder synchronously controlled ejection equipment for large forgings includes an oil tank 1, an electric motor oil pump 2 connected through a pipeline inserted into the oil tank, a left and right cylinder control electromagnetic reversing valve 3 connected to the electric motor oil pump through a branch pipeline, connected to the oil tank through a pipeline, and controlling the left cylinder and the right cylinder through an oil inlet pipeline and an oil return pipeline, an intermediate cylinder control electromagnetic reversing valve 4 connected to the electric motor oil pump through another branch pipeline, and controlling the intermediate cylinder through an oil inlet pipeline and an oil return pipeline, a left and right cylinder diverter valve 5 connected to the left and right cylinder control electromagnetic reversing valves through a pipeline, a left cylinder 6 and a right cylinder 7 connected to the left and right cylinder diverter valves through a diversion pipeline, a one-way throttle valve 8 connected to the intermediate cylinder control electromagnetic reversing valve through a pipeline and adjusting the flow rate to be consistent with the output flow rate of the left and right cylinder diverter valves, and an intermediate cylinder 9 connected to the one-way throttle valve through a pipeline.

[0014] The present invention provides equipment for ejecting large forgings with multi-cylinder synchronous control. When the left cylinder 6 and the right cylinder 7 are linked, left and right cylinder diverter valves are used to distribute the flow of hydraulic oil to the lower chambers of the left cylinder and the right cylinder at the same flow rate in a ratio of 1:1, so that the hydraulic oil of the two cylinders is evenly diverted, ensuring the consistent movement of the two cylinders and realizing synchronous movement of the left cylinder and the right cylinder.

[0015] The present invention provides equipment for ejecting large forgings with multi-cylinder synchronous control. When the left cylinder 6, the right cylinder 7 and the middle cylinder 9 are linked together, the left and right cylinder diverter valves and the one-way throttle valve are used to adjust the output flow rate, so that the regulated output flow rate of the left and right cylinder diverter valves is consistent with the regulated output flow rate of the one-way throttle valve, and the same flow rate is distributed to the lower chambers of the left cylinder, the right cylinder and the middle cylinder, so that the hydraulic oil of the three cylinders is evenly diverted, the actions of the three cylinders are guaranteed to be consistent, and the left cylinder, the middle cylinder and the right cylinder can be synchronously moved.

[0016] also, Figure 1 In the forging 10.

[0017] The present invention provides equipment for ejecting large forgings using multi-cylinder synchronous control. The operating process is as follows: When the left and right cylinders are ejecting material, the motor oil pump operates, energizing the A chamber of the left and right cylinder control solenoid reversing valves. Hydraulic oil enters the lower chambers of the left and right cylinders through the left and right cylinder diverter valves, ejecting the forging. When the left, right, and middle cylinders are operating, energizing the A chambers of the left and right cylinder control solenoid reversing valves and the middle cylinder control solenoid reversing valve. Hydraulic oil enters the lower chambers of the left, right, and middle cylinders through the left and right cylinder diverter valves and the one-way throttle valve, ejecting the forging. When energizing the B chambers of the left and right cylinder control solenoid reversing valves and the middle cylinder control solenoid reversing valve, the cylinders return to their original positions, completing one operating cycle.

[0018] The multi-cylinder synchronously controlled ejection equipment for large forgings of the present invention is only described above as a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-cylinder synchronous control ejection equipment for large forgings, characterized in that: It includes an oil tank, an electric motor oil pump connected through a pipeline inserted into the oil tank, a left and right cylinder control solenoid reversing valve connected to the electric motor oil pump through a branch pipeline, connected to the oil tank through a pipeline, and controlling the left cylinder and the right cylinder through an oil inlet pipeline and an oil return pipeline, an intermediate cylinder control solenoid reversing valve connected to the electric motor oil pump through another branch pipeline, and controlling the intermediate cylinder through an oil inlet pipeline and an oil return pipeline, left and right cylinder diverter valves connected to the left and right cylinder control solenoid reversing valves through pipelines, a left cylinder and a right cylinder connected to the left and right cylinder diverter valves through a diverter pipeline, a one-way throttle valve connected to the intermediate cylinder control solenoid reversing valve through a pipeline, and adjusting the flow rate to be consistent with the output flow rate of the left and right cylinder diverter valves, and an intermediate cylinder connected to the one-way throttle valve through a pipeline.

2. The multi-cylinder synchronous control ejection equipment for large forgings according to claim 1 is characterized in that: The left and right cylinders, when the two cylinders are linked, use left and right cylinder diverter valves to distribute the flow of hydraulic oil to the lower chambers of the left and right cylinders at the same flow rate in a 1:1 ratio, so that the hydraulic oil of the two cylinders is evenly diverted, ensuring the consistent movement of the two cylinders and realizing synchronous movement of the left and right cylinders.

3. The multi-cylinder synchronous control ejection equipment for large forgings according to claim 1 is characterized in that: The left cylinder, right cylinder and middle cylinder, when the three cylinders are linked, use the left and right cylinder diverter valves and the one-way throttle valve to adjust the output flow, so that the regulated output flow of the left and right cylinder diverter valves is consistent with the regulated output flow of the one-way throttle valve, and the same flow is distributed to the lower chambers of the left cylinder, right cylinder and middle cylinder, so that the hydraulic oil of the three cylinders is evenly diverted, ensuring the consistent movement of the three cylinders and realizing the synchronous movement of the left cylinder, middle cylinder and right cylinder.

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