Four-roll calendering and draping production device for PVC plastic floor surface film attachment

Abstract

The invention discloses a four-roll calendering and draping production device for PVC plastic floor surface film attachment. The four-roll calendering and draping production device comprises a four-roll calender, a wear-proof film unwinding mechanism, a printing film unwinding mechanism, a wear-proof film attaching mechanism, a printing film attaching mechanism and a guide-out mechanism. The printing film unwinding mechanism and the wear-proof film unwinding mechanism are installed on the two sides of the top end of the four-roll calender respectively. The wear-proof film attaching mechanism, the printing film attaching mechanism and the guide-out mechanism are sequentially arranged on the right side of a shading roll from top to bottom. The wear-proof film attaching mechanism is obliquely arranged on the right side of the shading roll. The printing film attaching mechanism and the guide-out mechanism are parallelly arranged on the right side of the shading roll. According to the four-roll calendering and draping production device, a vertical design is adopted, and a lower mirror roll and an upper mirror roll are used for determination of thickness; air is evenly extruded and exhausted by means of false attachment of a first guide-out roll in the printing film attaching mechanism, a PVC bottom board, a printing film and a wear-proof film can be more easily bound firmly, and production becomes convenient, simple and stable.

Description

technical field [0001] The invention relates to the field of floor production equipment, in particular to a four-roller calendering and laminating production device for PVC stone-plastic floor surface film sticking. Background technique [0002] The printing film and wear-resistant film on the surface of the existing PVC stone-plastic floor are mainly realized by three-roll calendering or six-roll calendering. Among them, the three-roll calendering method see figure 2 , The three-roll calendering process is: mixing with a high-speed mixer, extruding through a twin-screw, extruding with a sheet die, entering into a three-roll calender for calendering, and simultaneously putting the printed film + wear-resistant film into the three-roll calender for further processing Calendering and lamination, the pattern of the middle roller of the three-roller calender, generally the middle roller adopts wood grain roller (the texture pattern of the stick can be changed according to the n...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: (1) Color film extension, the total thickness of PVC base plate + printing film + wear-resistant film is 5.37mm, after rolling with a 4mm roll gap, the thickness of the printing film is 1.37mm, and the stretching and extension of the printing film If it exceeds ≥25%, the surface pattern of the floor has been distorted; (2) there are air bubbles, because the surface of the pattern roller is uneven and rolled on the printing film, the air in the folds of the printing film is difficult to discharge, resulting in the gap between the printing film and the wear-resistant film. A lot of air bubbles will affect the surface quality and adhesion fastness

[0003] For the method of six-roll calendering, see figure 1 , Six-roll calendering process: mixed by a high-speed mixer, extruded by a twin-screw, extruded by a sheet die, and entered into a flattening mechanism (the first pair of rollers), a filming mechanism (the second pair of rollers) and an embossing mechanism (the second pair of rollers) Three pairs of rollers); because the distance between the first pair of rollers and the second pair of rollers is relatively far, when the second set of rollers arrives, the temperature of the PVC substrate has dropped to 120°C, and the bonding temperature between the printing film and the substrate is too low, and there is no sticking Fastness (General printing film bonding temperature is 150°C / line speed 1m per minute; the distance between the second group and the third group is also relatively long, and the substrate temperature is low, resulting in unclear texture pressing

Images