RU2626431C2 - Method of applying film coating to complex surface - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: method of applying a film coating to a complex surface includes the preparation step, the material cutting step, the mounting step, which fixes the cut piece on one side, leaving the opposite edge free, separating the substrate from the free edge to the middle of the part, cutting the substrate, putting the film down on detail, and fixing it at a certain distance from the cut line, rolling it down with squeegee, paying special attention to the corners and gateways, heating and pulling the film off so that there are no creases and folds.

EFFECT: improving the contact of film with the surface to be coated.

29 dwg

Description

The invention relates to the application of self-adhesive films on cars for a variety of design decisions and additional protection of the body from aggressive environmental influences and ultraviolet radiation.

Of interest is the “Method for applying a label to a product and the product labeling system” according to the RF patent for invention No. 2507133, B65C 9/36, B65C 9/24, B65C 3/08, dated 03.04.2009. The method of applying a label to a product includes the use of the product with complex curvature, the use of a label having a first edge, a contact zone, a heat-shrinkable film with a layer of contact adhesive on the inner surface of the film, bringing into contact with the product a layer of contact adhesive in the contact zone, simultaneous exposure to heat and pressure on the label in the direction from the contact area to the first edge for gluing it to the product and subjecting the label to shrinkage to accept the curvature of the product by means of a heated deformable strip. However, this invention relates to the application of a film of a small strictly defined size on the product.

Closest to the proposed technical solution is the technology of applying automotive films by the company Luminophore. Ru, including the preparation stage, in which the parts that prevent gluing are dismantled, the object is washed without alkalis and waxes, dried, treated with degreasing compounds, the material cutting stage, when the glued part is removed and the film is cut, leaving a margin of 15-20 cm on the sides, the mounting stage is self-adhesive film, in which the substrate is removed and the film is rolled with a squeegee from top to bottom and from the center to the edges, the glued surface is heated, especially hard-to-reach spots, the excess is cut off, the heated film is wrapped with tightly pressed cancer Lemma. Found on the Internet at http://luminofor.ru/article_info.php/articles_id/7/article/Tehnologiya-naneseniy-avto ... 11/25/2014.

When using known technology, it is possible that defects may occur during film deposition.

The problem to which the invention is directed, is to improve the quality of the film coating on a complex surface.

The technical result is to improve the contact of the film with the surface to be coated.

This is achieved by the fact that the method of applying a film coating to a complex surface includes a preparation step, in which the parts that prevent gluing are removed, the object is washed without alkalis and waxes, dried, treated with degreasing agents, polished with special clay and finished with a sticky soaked towel composition, the cutting stage of the material, when the glued part is isolated, the cut piece is fixed with magnetic holders, the material is pressed with the finger along the perimeter of the piece to be cut so that its contours are clearly visible, and the film is cut, leaving the necessary margin on the sides, the cut part is moved to the right and down by 5 cm, forming the tolerances necessary for inversion, the remaining large piece of material is moved left and up by 5 cm to cut the next part, the step of mounting a self-adhesive film, in which the cut piece is fixed on one side, leaving the opposite edge free, the substrate is separated from the free edge to the middle of the part, the substrate is cut off, the film is lowered onto the part and fixed onto otorom distance from the cut line, roll the squeegee with smooth arcuate movements with sufficient force, driving out the air, free the edge with the substrate, remove the remaining substrate, squeeze the rest of the part with the squeegee, heat the material up to 50-60 ° C with a hairdryer, bend the film so that the angle was wrapped with a film without folds, the remaining piece of the film is cut into 5-7 wedges, not cutting to an angle of about 1 mm, heated and alternately wedged, starting from the extreme, and sealed in monolith at 80-90 ° C, in the After that, the edge of the free film is warmed up to 50-60ºС, the film is pulled out so that there are no creases and folds, the curved edge is warmed up to 80-90ºС and the trim along the inner perimeter of the part is accurately cut, if there is access to the inner surface of the part, the film is heated with a hairdryer to 50-60ºС , draw a finger along the gap with the adjacent part, cut allowances, warm up to 80-90ºС and lay the squeegee around the perimeter, when forming the edge at the junction with the adjacent part, warm the edge of the film over the gap between the parts, push the gap between the finger parts So that the gap is imprinted on the film, the excess film is cut off along the edge of the adjacent part, the remaining free film is bent around the edge of the part, tightly rolled with a squeegee and the final trimming is carried out, resting the knife on the edge of the adjacent part.

The invention is illustrated by drawings.

Cutting stage

In FIG. 1 - define a group of constituent elements that can be cut out from one piece of film with an allowance of 15-20 cm from all sides.

In FIG. 2 - fix the cut piece using magnetic holders, finger press the material along the perimeter of the workpiece to be cut so that its contours clearly protrude.

In FIG. 3 - cut the part.

In FIG. 4 - the cut part is moved to the right and down by 5 cm, forming the tolerances necessary for inversion.

In FIG. 5 - the remaining large piece of material is moved left and up by 5 cm to cut the next part.

The next part is cut out by repeating the actions depicted in figures 2-5.

Installation phase using the front door as an example

In FIG. 6 - fix the cut piece in the upper part, leaving the opposite edge free. Fixation is carried out in any way, for example, magnets, adhesive tape, etc.

In FIG. 7 - separate the substrate from the free edge to the middle of the part, cut off the substrate.

In FIG. 8 - lower the film onto the part and fix it at a certain distance from the cut line.

In FIG. 9 - roll the squeegee with smooth arcuate movements with sufficient force, expelling the air.

In FIG. 10 - release the edge with the substrate, remove the remaining substrate.

In FIG. 11 - roll the remainder of the part with the squeegee.

In FIG. 12 - if there is access to the inner surface of the part, the film is heated with a hairdryer to 50-60 ° C.

In FIG. 13 - run a finger along the gap with the adjacent part.

In FIG. 14 - cut allowances.

In FIG. 15 - warm up to 80-90ºС.

In FIG. 16 - stack the squeegee around the perimeter.

In FIG. 17 - warm the material in the acute angle to 50-60 ° C, using a pyrometer to control the temperature, bend the film so that the corner is wrapped with a film without wrinkles.

In FIG. 18 - the remaining piece of film is cut into 5-7 wedges without cutting to an angle of about 1 mm.

In FIG. 19 - warm and alternately wedge wedges, starting with the extreme.

In FIG. 20 - solder the mass into a monolith at 80-90ºС.

In FIG. 21 - in the region of an obtuse angle, the edge of the free film is heated to 50-60 ° C.

In FIG. 22 - pull the film so that there are no creases and folds, the bent edge is heated to 80-90ºС.

In FIG. 23 - with the door open, the tucked film is heated to 80-90 ° C and laid with a squeegee around the perimeter.

In FIG. 24 - design of the edge of the front door at the junction with the wing.

In FIG. 25 - warm the edge of the film over the gap between the parts.

In FIG. 26 - push the gap between the parts with a finger so that the gap is printed on the film.

In FIG. 27 - cut off excess film along the edge of the front wing part.

In FIG. 28 - bend around the remaining free film around the edge of the door leaf and tightly roll with a squeegee.

In FIG. 29 - put the knife in the gap between the door and the wing, resting it on the edge of the front wing part so that the cutting end of the blade slides along the very edge of the inner wrap on the door, and cut off the excess allowance. The step-by-step execution of all stages of applying a film coating to a complex surface ensures high quality.

Claims (1)

A method of applying a film coating to a complex surface, including a preparation step in which the parts that prevent gluing are dismantled, the object is washed without alkalis and waxes, dried, treated with degreasing compounds, the material cutting step is when the glued part is selected and the film is cut, leaving the required margin on the sides , the step of mounting a self-adhesive film, in which the substrate is removed and the film is rolled with a squeegee from top to bottom and from the center to the edges, the glued surface is heated, especially inaccessible places, about they cut the excess, the heated film is wrapped with a tightly pressed squeegee, characterized in that the preparation stage is completed by polishing with clay and finishing with a napkin impregnated with a sticky composition, at the cutting stage, the cut piece is fixed with magnetic holders, the material is pressed with a finger along the perimeter of the part to be cut so so that its contours are clearly protruded and cut, the cut off part is moved to the right and down by an allowance, for example, at least 5 cm, forming the tolerances necessary for inversion, the remaining pain the second piece of material is moved left and up by the amount of the allowance for cutting the next part, at the installation stage, the cut piece is fixed on one side, leaving the opposite edge free, the substrate is separated from the free edge to the middle of the part, the substrate is cut, the film is lowered onto the part and fixed on some distance from the cut line, roll with a squeegee in smooth arcuate movements with a force sufficient to remove air, free the edge with the substrate, remove the remaining substrate, roll the remaining squeegee After part of the part, the material is heated with a hairdryer in the region of an acute angle to 50-60 ° C, the film is folded so that the corner is wrapped with a film without folds, the remaining piece of the film is cut into 5-7 wedges without cutting to an angle of about 1 mm, heated and alternately wedged starting from the extreme ones, the mass is sealed into a monolith at 80-90ºС, in the region of an obtuse angle the edge of the free film is warmed up to 50-60ºС, the film is pulled out so that there are no creases and folds, the curved edge is warmed up to 80-90ºС and gently cut along the inner the perimeter of the part, with access to the inside On the front surface of the part, the film is heated with a hairdryer to 50-60ºС, held with a finger along the gap with the adjacent part, the allowances are cut off, heated up to 80-90ºС and laid with a squeegee around the perimeter, when forming the edge at the junction with the adjacent part, the edge of the film is heated over the gap between the parts, pressed place the gap between the parts with your finger so that the gap is printed on the film, cut off the excess film along the edge of the adjacent part, bend the remaining free film around the edge of the part, tightly roll the squeegee and carry out the final cutting, supporting standby on the edge of the adjacent parts.

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