Shutter production method for rolls and aluminum covers

Description

[0001] It is an invention that concerns a new designing - production and formation method for venetian blinds of rolling shutters and aluminum cover.

[0002] Their common characteristic is that for the purposes of their profile, the aluminum products, as they are formed after extruding, are designed and produced by tube uteri with one or more sections. This has the following disadvantages:

a. The used production patterns (extruding uteri) are highly expensive.

b. The used patterns are more sensitive and productivity (low extruding speed) and low life duration.

c. Due to their tube form, their profiles are necessarily designed and produced in a certain thickness, which are less than nine milli-inches (0.9 millimeter), in certain cases, depending on the morphology of its profile, its thickness may, imperatively, exceed the one millimeter (1mm).

[0003] This necessary minimum thickness also determines the minimum weight per meter, an element from which depends deterministically the final cost and its following price.

[0004] The uniqueness and the modernistic characteristic of the present patent relies on the invention of a new planning and production method of the shutters, initially the hinged and not the tube profiles and in the following, in the phase of their final formation, the extruding phase.

[0005] In this way, the following are achieved:

1. Use of patterns (extruding uteri) of an open intersection, the cost of which is 50-60% lower than the relevant tube patterns.

2. The new open intersection patterns are more durable, their life expectancy is multiplied (they can be used in the production field as much as to ten times more tones) and they achieve higher productivity, reaching an extruding speed up to 30% higher.

3. The designed and produced profiles can have a minimum thickness of 0,6-0,7 millimeters, which means that in every case the weight is lessened up to 20-30%.

4. In this way and in combination with the lower prices, due to the above factors (cost reduction, production boosting during extruding), the final cost reduction and the following characteristics of the sale price of a shutter per meter, under the application of the new method, exceeds, in every case, the 30%.

5. The production boosting and the reduction, up to the point of 20- 30%, of the aluminum raw materials used, per meter of the produced product, reduces the emission of gas, and as a result, it contributes in the protection of the environment.

[0006] Finally, the expansion of the shutter, which due to the fact that it consists the profile of the aluminum, it is produced, at its initial extruding, as an open intersection, it takes its final format during extruding, due to a system of special rollers that are added to the extruding machine and through which the shutter is obliged to pass through when extruding takes place.

Claims

1. It is a method for the production of rolling shutters and aluminum covers, which is characterized by the fact that patterns are being used (extruding uteri) of an open intersection type.\
The produced shutters are initially open and then, during extrusion, they receive their final format.