A discharge device and a discharge method

Abstract

The invention discloses a discharging device and a discharging method. The discharging device comprises a collecting bin, a transferring bin, a lower air door, a temporary storage bin and a material receiving device, wherein the transferring bin is located below a discharging opening of the collecting bin, and the temporary storage bin is connected with a discharging opening below the transferring bin, is located above the lower air door and is used for storing a material; a pressure regulating and converting device is arranged at the outer side of the temporary storage bin and comprises a first adjusting pipeline which is used for adjusting the pressure difference between the pressure of the temporary storage bin and outside atmospheric pressure. By adopting the technical scheme proposed by the invention, energy can be better saved, the production efficiency is increased, and the stability is better.

Description

Technical field [0001] The invention relates to the technical field of printed circuit board mechanical drilling, in particular to a discharging device and a discharging method. Background technique [0002] When making printed circuit boards, the printed circuit boards need to be drilled, and a lot of dust will be generated during the drilling process. Therefore, the enterprises that produce printed circuit boards need to use the central dust collection system to drill the drilling machine. The dust generated during the hole process is removed. Such as figure 1 As shown, the central dust collection and discharge system is mainly divided into a dust collection part and a discharge part. The dust collection part is mainly used to collect dust, mainly including a motor, a fan connected to the motor and driven by the motor (also called a vacuum pump) , The muffler used to eliminate the noise generated by the fan when it is working, the exhaust port connected to one side of the fan,...

AI Technical Summary

Problems solved by technology

If the upper damper is in the process of automatic movement from opening to closing at this time, the bird's nest-shaped dust cluster will be stuck between the upper damper baffle assembly and the upper damper sealing ring, so that the upper damper cannot be completely closed, and the lower damper cannot be opened. Case

[0006] The second defect: under normal conditions, the dust falls directly from the dust collection bin into the dust transfer bin, and then discharged, the damper needs to be opened and closed frequently during the entire discharge process

The opening and closing of the air door requires the upper air door baffle assembly 204 and the lower air door baffle assembly 206 to continuously circulate and alternate actions to complete the transfer of dust between the vacuum tower and the receiving barrel. The lower damper baffle plate assembly 206 needs to overcome the larger vacuum force to realize the opening and closing of the upper and lower dampers, which will consume a large amount of power source, and will cause fluctuations in the vacuum pressure of the pipe network on the drilling machine, making the drilling machine Poor dust removal, which leads to lower yield of printed circuit boards

[0007] The third defect: the transmission of dust between the vacuum tower and the receiving barrel depends entirely on the upper air door baffle assembly 204 and the lower air door baffle assembly 206 to drive the air cylinder to forcibly open and close the air door, so when designing the bore of the driving air cylinder, Need to design a larger cylinder diameter, the waste of energy is more serious

[0008] The fourth defect: the upper air door baffle assembly 204, the lower air door baffle assembly 206, the upper air door sealing ring 201 and the lower air door sealing ring 205 need to continuously withstand the interaction between vacuum pressure and atmospheric pressure, so metal fatigue is prone to occur. The phenomenon of perforation damage has poor stability, and it is difficult to be found after perforation, so that the central vacuum is blocked. At this time, it can only be stopped for processing, which affects production efficiency.

[0009] To sum up, the discharge device in the prior art has serious waste of energy, relatively low production efficiency and poor stability

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