TOP4500 Hot Air Seamless Welding Machine Plastic Welding Gun PVC Banner Welder UV Backlit Tape Welding Machine

Product Overview

Description

 

                    Geomembrane Welding machine

 

Geo-membrane welding machine is our new developed products, which can weld geo-membrane of various thickness and are applicable for welding of all thermal-fused material such as LDPE, PVC, HDPE, EVA, PP and so on.

The control of this series of welding machine adopts PID automatic thermostatic control with high control accuracy and low temperature fluctuation; speed control adopts PWM automatic voltage and speed regulation circuit, driven by DC servo motor, with great output torque and the operating is stable. It can maintain a constant speed on the condition of creeping, vertical creeping and variable road load. Also this series of welding machine is stable in performance despite of external temperature and voltage variation.

 

Weding the following materials

 

 

1. Technical parameters

Voltage (V): 220V

Frequency (Hz): 50Hz

Power (P): 800W

Welding speed (V): 0.8-6m/min

Heating temperature (T): 0-450°C

Thickness of material to be welded: 0.2mm-2.0mm

Overlap width: 100mm

Welding width: 12.5mm×2, interior cavity 12mm

Seam strength: ≥85% base material (tensile resistant in shear direction), complete machine

Dimensions: L32 x W15cm x H22cm

Net Weight: 4.8kg

Gross Weight: 8.5kg

Insulation class: class II

.

2. Main Components:

 

 

  

3. Operation principle

Motor drives upper and lower pressure rollers to rotate through reduction gearbox and chain. Slide carriages drive the hot wedge and insert it between the two base materials, at the same time lever presses pressure rollers and engages the two fused base materials.

 

Pressure roller

Spring strip

Hot wedge

Run direction

Lower membrane

Upper membrane

Fig.4 Welding schematic diagram

 

4. Operating regulations

 

As welding quality is direct related to speed and temperature setting during operating, so welding machine must be specified personnel operated to reach excellent quality and high efficiency.

 

Run direction

Fig.5“T”shape welding diagram

5. Replacement of components

 

1). Replacement of hot wedge assembly

Remove the front end covering, remove the 4-M4 screws and tapping screw, remove a half housing, release 4-M3 screws, remove the 2-M5 screws that connect heating support and slide carriage, remove hot wedge and replace with a new one, and reassemble the complete machine (shown as fig.6). Note: conform to color on wiring.

 

(Refer to fig.10 and text information)

Front end coving

4-M5 installation screws

Tapping screw

4-M3 turnbuckle screws

4-M4 screws

Fig.6

 

2). Replacement of control box

 

 

8- M3 turn buckle screws

Rear base of control box

Fig.7

3). Replacement of motor

Remove all screws on housing, remove front end covering to remove housing, remove the 4-M5 installation screws on the support, remove the main chain guard and separate the upper and lower support. Remove the covering on the bottom of upper support and weld connection between motor and fuse holder, screw off the 2-M5 installation screws of the motor, take off motor and replace a new one. Weld back the removed wires and reassemble on the opposite sequence (Note: keep upper and lower pressure roller is parallel during assembling.).

 

 

4) Replacing of upper and lower pressure roller

Remove the chain guard, take off the forcing off screws on the two chain wheels and then remove chain wheel and chain. For upper rubber wheel, it can be removed if the two screws on bearing housing that on both sides of press plate are removed. For lower rubber wheel, it can be removed if the bearing on one side of chain wheel. Reassemble them in the same method.

 

 

6. General troubles and eliminations

Motor not run	Power off	Check that the mains is in On condition
	Fuse damaged	Replace fuse
	Speed control circuit board damaged	Replace speed control circuit board or control box assembly
	Motor burned	Replace motor
Motor speed can’t be regulated	Speed control knob is loosened	Tighten speed control knob
	Power tube disruption	Replace power tube or control box assembly
Hot wedge do not heat	Tubular electric heating element damaged	Replace hot wedge assembly
	Thermocouple failure	Replace thermocouple
	Temperature control knob loosened	Tighten temperature control knob
	Temperature control circuit board damaged	Replace temperature control circuit board or control box assembly
Hot wedge is burned red	Thermocouple failure	Replace thermocouple
	Controlled silicon disruption	Replace controlled silicon or control box assembly
Chain jumping	There may be sand or small stones on chain and gear	Remove sand or small stones

 

7. Maintenance

The complete machine should be cleaned, greased and placed in a dry place if it is not used.

For PVC welding, the adhesions on hot wedge should be cleaned off if it is not used longer than 4 hours to prevent wedge corrosion and service life being shortened.

 

The following products will be assorted used.