Hydraulic system for packaging machine and working method thereof

Abstract

The invention discloses a hydraulic system for a packaging machine. The hydraulic system for the packaging machine comprises a hydraulic source; the hydraulic source is connected with a first oil pump and a second oil pump; the first oil pump is connected with a first cartridge valve bank; the first cartridge valve bank communicates with a first three-position four-way valve; the first three-position four-way valve is connected with a pre-loading cylinder; the second oil pump is connected with a second cartridge valve bank, a third cartridge valve bank and a fourth cartridge valve bank simultaneously; the cartridge valve banks are connected with a second three-position four-way valve and a third three-position four-way valve; the second three-position four-way valve is connected with a box body cylinder; and the third three-position four-way valve is connected with a main pressure cylinder. According to the hydraulic system for the packaging machine, the cartridge valve banks cooperate with the three-position four-way valves to achieve the effects of protecting and controlling an oil way; the pre-loading cylinder moves independently and can be selectively controlled; the box body cylinder and the main pressure cylinder mainly achieve an effect of assisting packaging; power resources are saved; power usage efficiency is improved; the oil way is controlled through a plurality of control ends; normal connecting and disconnecting of the oil way in a working process of the packaging machine are ensured; the packaging machine is safer; meanwhile, a plurality of moving stations of the packaging machine are controlled through three cylinder blocks; and the operation is more convenient.

Description

technical field [0001] The invention relates to the field of control systems of balers, more specifically, it relates to a hydraulic system of balers and a working method thereof. Background technique [0002] The baler is also called a baler, a strapping machine or a strapping machine. By using strapping straps to bundle products or tightening irons, the products are stored and arranged to avoid products from being scattered during transportation. In order to ensure smooth operation, hydraulic pressure is usually used. The system takes control. [0003] In response to the above problems, the Chinese patent with the patent announcement number CN106499684A proposes a hydraulic system for a baler, including a plunger pump and an electric motor. The plunger pump is connected with a stop valve, a throttle valve, a filter, an overflow valve, and a throttle The valve is connected with the three-position four-way valve, and the three-position four-way valve is connected with the m...

AI Technical Summary

Problems solved by technology

[0005] In view of the problem that the hydraulic system of the original baler is prone to failure, resulting in low packing efficiency, the purpose of the present invention is to propose a high-efficiency and safer hydraulic system of the baler and its working method. The specific scheme is as follows:

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