Transmission structure of single-layer hot press

When the transmission shaft continues to rotate, its vector diameter decreases, and the working plunger extends outward under the action of the return spring, which increases the volume of the sealing working chamber and forms a vacuum. The hydraulic fluid in the oil tank pushes the oil suction valve into the working chamber under the action of atmospheric pressure. The hot press is a kind of electrical and mechanical connection device that heats two parts coated with flux tin in advance to a temperature sufficient to melt and flow the solder. After curing, an electrical and mechanical connection device is formed between the parts and the solder. The thermostatic hot press is applicable to the connection of FPC (flexible circuit board), HSC (zebra paper), TAB, LCD and PCB. Because the pitch of PCB or FPC in consumer electronic products tends to be smaller, the traditional soldering process has been difficult to meet the requirements of ultra-fine hot pressing. The ACF process has been gradually applied by mobile phone designers. Glass fiber hot-press molding machine is an electrical and mechanical connection device that heats two parts coated with flux in advance to a temperature sufficient to melt and flow solder, and forms a * * * between parts and solder after curing. When the eccentric transmission shaft turns to the point shown in the figure, oil suction is completed. The eccentric transmission shaft rotates once, the pump absorbs oil once and discharges oil once.
It can be seen that the oil suction and discharge of the hydraulic pump are realized through the volume change of the sealing working chamber. Therefore, the hydraulic pump is called a positive displacement pump. Single-layer plug pump has only one working chamber, and its output liquid has poor continuity and large pulsation. It can only be used for very simple liquid conveying equipment or operating equipment.
As an energy element of the hydraulic transmission and control management system, the hydraulic pump of the hot press must meet the following conditions to meet the design requirements:
① There must be several variable-volume sealing chambers on the structure.
All working cavities can be continuously and steadily changed from small to large and from large to small.
③ It should be ensured that the oil suction and oil discharge are strictly separated, that is, the oil distribution mechanism.
The pump structure of single-layer hot press is mainly composed of transmission shaft as plunger cylinder, reset control spring, oil suction valve and oil drain valve. The vector diameter of the eccentric transmission shaft increases, and the working and plunger are compressed, so that the volume of the working cavity of a seal design is gradually reduced. The existing liquid in the cavity can be affected and compressed, and the pressure is increasing. The oil drain valve enters the information system. When the drive shaft turns to the point, the oil drainage is completed.