The continuous production line of polyurethane foam sandwich panel is a special equipment for producing soft-faced materials such as upper and lower non-woven fabrics and intermediate polyurethane. The specification of sandwich panel is 20 ~ 100 mm in thickness, 0/200 mm in width and self-determined in length. Its working principle is as follows: the polyurethane foam stock solution is sent to the mixing head by the metering pump of the pouring machine according to a certain proportion, and then evenly poured on the bottom material of the sandwich panel, and sent to the laminating conveyor together with the upper material, and foamed and solidified between the upper and lower chain plates of the laminating conveyor; The cured sandwich panel is trimmed on both sides of the production line, and cut into a certain length of products by an automatic tracking cutter as required.
Main technical parameters
The production line speed is 2 ~ 7m/min.
Thickness: 20- 100 mm
The stirring speed is 4500 rpm.
Reciprocating speed of pouring head < 1000 mm/s
The maximum temperature of hot air circulation is 70℃
The laminating length of the laminator is 24m.
The maximum opening height of the laminator is 280mm.
The total installed power is 180KVA.
Equipment composition
The production line consists of two sets of discharging devices, one set of flour preheating device, one set of PU low-pressure foaming machine, one set of mobile pouring machine, one set of side sticker device, one set of laminating conveyor, one set of hot air circulation device, one set of trimming device, one set of automatic tracking cutting machine, roller frame, etc.
Two sets of discharging devices
The discharging device will be installed on the platform at the front end of the production line and the upper end of the laminating conveyor respectively, which can discharge, correct deviation and position the fabric before it enters the laminating machine, and at the same time control the surface tension of the fabric. 2 gas distribution expansion shafts.
Main technical parameters
Load capacity: 1500kg
Maximum outer diameter of coil:1000 mm.
Inner diameter of coil: φ75mm, φ 150mm.
Maximum width of face material: 1225mm.
Tension mechanism: magnetic brake
Method for correcting the position of face material: manual.
A set of flour preheating device
Used to preheat the lower surface material before pouring.
Main technical parameters
Heating power: 3.6kw
The surface temperature in electric heating tube is below 200.
Fan power: 0.04kw×3
Heating temperature: 40℃ controllable.
Polyurethane low pressure foaming machine
Equipment composition and main technical parameters
Fuel tank assembly
Two resin tanks with a capacity of 220 liters have jackets, stainless steel linings and filters. The stirring power is 0.5×2, the motor is explosion-proof and the rotating speed is 60r/min.
Pump assembly:
Metering pumps: two, two feed pumps (pneumatic diaphragm).
Equipped with corresponding material pipe sleeves.
Mixing head assembly
One high-speed mixing head, rotating speed of 2900 rpm, power of 2.2kw, explosion-proof motor.
Two pneumatic on-off ball valves are equipped with automatic cleaning devices. The cleaning tank has a volume of 25L and is made of stainless steel. It is equipped with corresponding cleaning valves and solenoid valves. Feed liquid system:
Corresponding hydraulic solenoid valve and pipeline valve. Digital display material with adjustable temperature and switch. Equipped with heating water tank, power 6kw. Pump motor power: 0.37kw
Electrical control of main engine:
The electric control box is used to control the motor, cylinder, solenoid valve and other executive parts. Man-machine control adopts PLC, which can preset pouring time, cleaning time, blowing time, pouring, cleaning and blowing procedures.
Moving pouring machine
The mobile pouring machine is composed of main machine base, servo drive device and slide seat.
The main frame is installed on the base, and the guide rail is installed on the base, so that the distance between the main frame of the mobile pouring machine and the laminator can be adjusted. The base is equipped with an adjusting device to adjust the height vertically. Servo motor planetary reducer and synchronous toothed belt drive the sliding seat to move back and forth. A mixing head is installed on the sliding seat to realize reciprocating distribution. Its reciprocating distance, position and frequency are controlled by PLC and touch screen.
Main technical parameters
Power 1.5KW
The maximum moving speed is 1000 mm/s.
The maximum fabric width is 1200mm.
The maximum longitudinal movement distance is 800 mm.
The maximum vertical movement distance is 100 mm.
A set of side paper pasting device
Stick the paper tape on one side of the plate with a reel.
Main technical parameters
Inside diameter of paper roll: φ75mm, paper width: 50- 100mm.
Laminating conveyor
The production is equipped with a laminating conveyor for laminating and setting plates. Laminator adopts chain plate transmission structure, chain plate is refined from high-quality aluminum alloy, and speed frequency conversion is stepless adjustable. The thickness of the sandwich plate is ensured by the distance between the upper and lower chain plates of the laminator. The driving force for opening the laminated chain plate on the laminator is the reducer, and the maximum opening height is 280mm, which is convenient for adjustment and maintenance. There are 65,438+06 elevators to ensure that the laminated chain plate on the laminator stays in any position.
Main technical parameters
The laminating conveyor belt is 24 meters long.
The sprocket center distance is 23.6 meters.
The length of the chain plate is 1340mm.
The width of the chain plate is 200mm.
Height of chain plate: 60mm
Withstand a pressure of 0.6 bar/cm2.
The emission power is 7.5kw×2.
The working height of the lower rail is 1200mm.
The maximum spacing between the upper and lower rails is 300mm.
Speed regulation mode: AC frequency conversion
Spiral elevator: 16.
Elevator tonnage: 15T
Hot air circulation device
The heat source adopts oil-fired hot blast stove and electric heating. The circulation channel consists of air duct, fan and upper and lower laminators. Customers can choose simultaneous heating or separate heating according to process requirements.
In order to adjust the temperature of the laminator and laminator, an air volume adjusting plate is installed on the main air duct.
Thermal sensors are installed in the middle of the upper and lower laminators and the air outlet of the electric heating box respectively, and the temperature is controlled by a digital temperature controller.
Main technical parameters
Electric heating power 60kw
The air outlet temperature can be adjusted within the range of 60-200℃
The heating power of the hot blast stove is 200,000 kcal.
The maximum temperature is 70℃
The circulating fan power is 5.5kw.
Circulating air volume 12000m3/n
Blower power 3kw
A set of trimming machine
The production line is equipped with 1 edger, which is used to edge both sides of the sizing plate. The setting plate in the production line is 1225mm, and the trimming plate is 1200mm. The machine adopts circular saw and is equipped with bag vacuum cleaner.
Main technical parameters
Knife power 3kw
Dust suction power 4kw
An automatic tracking cutting machine
The production line is equipped with 1 circular saw automatic tracking cutter.
The length is measured by infrared ray and equipped with bag filter.
Main technical parameters
Walking mode: follow-up
Traveling power of circular saw: 0.75kw
Clamping cylinder: φ80× 125×2.
Reset cylinder: φ80× 1200
Circular saw lifting cylinder: φ80× 125.
Minimum cutting length: 2m
Disc saw power: 3kw
Length accuracy: 2mm
Diagonal accuracy: 2mm
Vacuum power: 4kw
turning rolls
The roller frame consists of a steel tube roller, a bracket and a driving part.
Drum diameter: φ 76mm
Drum length:1300mm
Drum spacing: 300mm
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