Hot plate welding machine supplier's hot plate equipment control methods can be divided into manual and automatic control, manual one-piece action, mainly used for the commissioning of institutions and molds, manual debugging is good, adjusted to automatic production. The automatic control system uses a programmable controller (PLC PLC supplier) and touch panel man-machine interface to control, each cylinder movement is pneumatically driven, easy to operate, reliable performance, compact size, improve production efficiency and quality. Next Xiaobian introduced hot plate welding machine welding principle and hot plate welding machine features.
Hot plate welding machine welding principle
The hot plate welding machine mainly welds plastic parts through a temperature controlled heating plate. When welding, the heating plate is placed between two plastic parts. When the workpiece is pressed against the heating plate, the plastic begins to melt. After a pre-set heating time elapses, the plastic on the workpiece surface will reach a certain degree of melting. At this time, the workpiece is separated on both sides, the heating plate is removed, and then the two pieces are combined together, and when the hot plate stops working, The pressure is allowed to persist for a few seconds, allowing it to solidify, so that a solid molecular chain is formed to achieve the purpose of welding. The welding strength can exceed the strength of the raw material and the entire welding process is completed.
Hot plate welding machine features
1, plastic hot plate machine can be applied to different sizes of workpieces, no area restrictions
2, can be applied to any welding surface, no special requirements
3, the welding surface can allow plastic balance compensation, welding strength is guaranteed
4, plastic hot plate welding machine in response to the needs of various materials, can adjust the welding procedure
5, the fixture is fixed on the corresponding upper and lower platen position
6. Under the action of the upper and lower platen power and positioning guide system, the rubber parts can be contacted with the hot stamping mold to perform hot stamping at a high speed, smoothly and without impact, so that the glue pieces join the surface material to the molten state.
7. Complete the hot and cold die-out in a short period of time
8. The hot stamping hot plate, the upper jig and the lower jig are designed as an independent assembly part for easy installation and transportation
9. Hot-lamination plate materials imported from abroad
Hot plate welding machine composition and its role
1, pneumatic drive part
This section includes: helium valves, pressure reducing valves, oil misters, commutators, throttle valves, cylinders, etc. When the hot plate welding machine works, the air compressor firstly drives the stroke cylinder to drive the hot plate mold system to move up and down. The pneumatic pressure is adjusted during the welding process of the hot plate welding machine according to the need of welding plastic parts.
2, the control part
The control part consists of PLC and temperature controller. The main functions are: First, control the pneumatic transmission system to make it open under the time control of the welding gas valve, the cylinder pressure to make the welding head down, press the object to be welded with a certain pressure, when the welding pressure after a period of time The control system then reverses the pneumatic valve to allow the weld head to lift and reset. The second is to control the working time of the heating of the plastic part on the hot plate. This system enables the entire welding process to be automated. Only a start button is triggered to generate a trigger pulse. It will automatically finish the welding process. The sequence of the entire control system is as follows: the power source starts a trigger control signal pneumatic transmission system, the cylinder pressure up and down tightens the mold down and presses on the upper and lower hot plate mold work, and maintain a certain welding time to maintain a certain pressure time back pressure, up and down The mold is lifted and soldered.
3, electrical parts
Touch screen and (programmable) controllers, magnetic switches, and electric heating tubes, electrical parts are mainly divided into hot plate temperature control system and the upper and lower template and hot plate movement mechanism movement control system in two parts: heating plate The temperature control system is a three-phase 380 volt power supply introduced through the air switch, and the temperature controller controls the heating current of the heating pipe in the hot plate of the three-phase solid state relay SSR. The thermocouple is buried in the heating plate. The temperature signal is fed back to the temperature controller to realize the temperature control of the electric heating plate; the temperature controller uses the intelligent way to control the output current of the solid state relay SSR. The system circuit is also provided with two AC current meters to monitor the three-phase current on and off status and size. The heating temperature can be preset and adjusted on the thermostat panel according to the processing temperature of the heating plate.
4, mold and mechanical parts
This part adopts a skateboard structure, and the electric heating method transfers the heat of the heating plate to the welding surfaces of the heating elements of the upper and lower plastic parts. The surface is melted, and then the heating plate is quickly withdrawn. The upper and lower plastic pieces of the plastic part are rapidly pressed together under the action of two cylinders, so that the fusion face after heating is rapidly fused and solidified into one body. The whole machine is in the form of a frame. It has a fixed positioning structure for the upper die, a fixed positioning structure for the lower die, and three modules for integration of the hot template. The machine is equipped with two copper electric heating plates, which are moved forward and backward by the cylinder and are easy to use. The heating plate is energized and heated by the electric heating tube. The temperature controller controls the temperature range. After the temperature is set, it can be adjusted automatically. The actual temperature and the expected heating temperature are displayed on the panel. The user can perform the actual adjustment according to the welding requirements of the plastic parts.
Editor's summary: The hot plate welding machine welding principle and hot plate welding machine features are introduced here, and I hope to be helpful to everyone. If you want to know more related information, you can pay attention to this website information.
Siphon principle cooling principle hot plate welding machine
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